The advantages and disadvantages of various reducers and development trends

The reducer is a power communication mechanism that uses the speed converter of the gear to reduce the number of rotations of the motor to the required rotation and get a large torque. In institutions currently used to transmit power and movement, the scope of application of reducer is quite wide. It can be seen in almost all kinds of mechanical transmission systems. From the transportation of ships, cars, locomotives, heavy machinery for construction, processing machines and automated production equipment used in the machinery industry, and common in daily life, it is common to daily life to daily life. Home appliances, clocks, etc., from the transmission of large power, to small loads, accurate angle transmission, can be seen in the application of reducer, and in industrial applications, the reducer has a deceleration and increase torque function. Therefore, it is widely used in the conversion equipment of speed and torque. The role of the reducer is:
) Increase the output torque at the same time, and the torque output ratio is based on the motor output to reduce the deceleration ratio.
2) The deceleration also reduces the inertia of the load, and the reduction of inertia is the square of the deceleration ratio. You can see that the general motor has an inertia value.
The working principle of the reducer
The reducer is generally used for transmission equipment with low speed and large torque. The motor, internal combustion engine, or other high -speed operation of the input shaft on the reducer can be output through the input shaft of the reducer The large gear on the shaft can achieve the purpose of deceleration. The ordinary decelerator will also have several pairs of the same principle gear to achieve the ideal deceleration effect.
The types of reducers
This is a relatively precise mechanical. The purpose of using it is to reduce speed and increase torque. There are many types, different models, and different types of different uses. There are many types of reducers. According to the type of transmission, it can be divided into gear reducer, worm reducer, and planetary gear reducer; according to the different number of transmission levels, it can be divided into single and multi -level reducers; according to the shape of the gear The device, the cone gear reducer and the cone -cylindrical gear reducer; according to the form of the transmission, it can be divided into expansion, diversion and coaxial reducer. The following is a commonly used reducer classification:

The main features of the worm wheel snail reducer have a reverse self -locking function and can have a large deceleration ratio. Not on the same plane. However, the general volume is large, the transmission efficiency is not high, and the accuracy is not high. The harmonic transmission of the harmonic reducer uses the controllable elastic deformation of flexible element to transmit motion and power. It is not large and accurate, but the disadvantage is that the soft wheel life is limited, impact resistant to impact, rigidity compared with metal parts compared with metal parts compared with metal parts Difference. The input speed cannot be too high. The advantages of the planet deceleration machine are that the structure is relatively compact, the return space is small, the accuracy is high, the service life is long, and the rated output torque can be done very much. But the price is slightly expensive.
In the 1970s and 1980s, the world ’s reducer technology has developed greatly, and it is closely integrated with the development of the new technological revolution. The development trend of general reducers is as follows:
① high level, high performance. The cylindrical gear is generally used in carburizing quenching and grinding teeth. The carrying capacity is increased by more than 4 times. The volume is small, light weight, low noise, high efficiency, and high reliability.
② the design of the building block. Basic parameters are prioritized, the size and specifications are neat, and the parts and interchangeability of the parts are easy to expand and renovate, which is conducive to organizational mass production and reducing costs.
③ diverse type, more variant design. Get rid of the traditional single base installation method, adding different types such as hollow shaft suspension, floating support base, electric motor and reducer integrated connection, and multi -directional installation surfaces to expand the scope of use.
The main factors that promote the level of reducers are:
① the increasingly improved theoretical knowledge, closer to reality (such as gear intensity calculation methods, shape repair technology, deformation calculation, optimization design method, smooth tooth root transition transition , New structure, etc.).
② The good materials are adopted, and various high -quality alloy steel forging, materials and thermal treatment quality control are generally adopted.
③ structural design is more reasonable.
④ The processing accuracy is increased to level ISO5-6.
⑤ improvement of bearing quality and life.
⑥ The quality of lubricating oil is improved.
Since the 1960s, my country has formulated a number of universal reducers such as the JB1130-70 “Cylphic Gear Term”. Production plant. At present, there are hundreds of companies producing reducers in the country, with an annual output of about 250,000 universal reducers, which has contributed to the development of mechanical products that develop my country.
The reducer of the 1960s was mostly made of technology manufacturing with reference to the Soviet Union’s 1940s and 1950s. Although it was developed, it was limited to the design, process level and equipment conditions at the time. There is a large gap.
Since the reform and opening up, my country has introduced a number of advanced processing equipment. Through the introduction, digestion, and absorbing advanced foreign technology and scientific research, it has gradually grasped various high -speed and low

speed -load gear devices Design and manufacturing technology. The quality of the material and thermal treatment and the processing accuracy of the gear are greatly improved. The manufacturing accuracy of the universal cylindrical gear can be increased from the 8-9 level of JB179-60 to the level 6 of GB10095-88. The manufacturing accuracy of high -speed gears can be stable at 4-5 class. After some reducers use hard tooth surfaces, the volume and quality are significantly reduced. The carrying capacity, service life, and transmission efficiency have greatly improved, which plays a great role in energy saving and improving the overall level of the host.
The power reduction (adding) high -speed gear reduction (adding) speed in my country has reached 42000kW, and the gear round speed is more than 150m/s. However, the technical level of most of my country’s reducers is not high, and it is impossible for old products to be replaced immediately. New and old products have gone through a longer period of time.
The development trend: The module system can be divided into two categories: open and closed.
The characteristics of the opening system are: enough quantity and variety modules to connect to each other in a direct or indirect way. The same variety modules can be repeatedly appeared without restrictions, which can form an unlimited combination; but when the module is used as a module When varieties and quantities are limited, the number of combinations is also limited. For example: currency, text, power supply, pipelines, block regulations, dish spring and other systems; suspended transportation devices are a more complex open system, which are The composition of the falling frame and the end plate, the proper selection of the aforementioned module can form a transport line of different lengths and shapes.
The characteristics of the closed system are: limited quantity and variety modules, which cannot be or only repeat the same variety module to form a module system that constitutes a limited type of combination. In actual combinations, the compatibility between modules should be considered, and the possibility of processing and processing should be considered. Modular machine tools, table lamps, etc. are closed systems.
The possible combination of combinations of closed system and open system modules under a certain condition can be calculated by combining combinations and arranged mathematical methods. The total number of systems of systems is n, the total number of modules of the system is m, the total number of modules required for each product is K, the number of the same module required for each product is Z, and the number of combinations of the system module is C (regardless of order), and The number of arranges of the system module is A (considering the combination and the different arrangement sequence of different arrangements), and the number of comprehensive combinations is P.

The layout and connection method, interchangeability and compatibility of the module system
The combination of the module in the product is different. It is also different from the combination of other modules. The number of other modules connected is different, which can be divided into linear connections (single, two -way), plane connection (four -way) and stereo connection; according to different module correlations, it can be divided into: rigid connection -direct assembly system, with direct assembly systems, with direct assembly systems. It is divided into two connections: static and movement; flexible connection -connecting with indirect and physical related conditions, and unprozen -related conditions.
9 The combination of the comprehensive level of the module and the available combination of the product
product hierarchical modular design is less constrained than the conventional modular design composed of basic modules, and can fully use modern design, manufacturing and manufacturing and manufacturing and manufacturing. Management method. In the hierarchical module system, the product and the modules at all levels are composed of its adjacent sub -level (sub -) modules, and its structure or performance parameters depends on the sub -modules that form it. The lower the level of the sub -module in the product, the greater the impact on the number of product composition (deformation). Therefore, when the module of the hierarchical modular system is combined, it should start with the minimum level module, step by step to the high level level level. The module is integrated until it constitutes the product.
The module of the hierarchical modular product comprehensive schematic diagram is mostly branched structure, and the length (level) of each branch is different. Essence When considering the parameter matching (the same parameters of different parts should be consistent), and the functional and unrelatial arrears, the number of combinations can be greatly reduced.
This of a grinding bed, its shell A has 4 centers high and 3 Mo Shi top to choose from; its sleeve B and protective cover C both have 4 itinerary size and 3 Mo’s tips. For options, there are 2 structures of the operating handle D in 4 sizes to choose from; the contact sensor E has 4 strokes to choose from. There are 33 parameters of these five sets of modules, then the three groups of A, B, and C have 4 × 3 = 12 combinations, and D and E have 8 or 4 combinations; the total number of combinations of the tail frame is A = 12 × 12 × 12 × 8 × 4 = 55296. Considering the same parameters of different parts and different modules, there should be the same type of different modules. There are 4 centers high, 4 strokes, 3 top, and 2 handle structures. It is only one of the 576 points of the theoretical combination.
The basic work in the modular design is to first divide the basic module of the reducer. According to the theory of the module, the basic modules should be divided according to its functions. The basic module of the general speed device can be divided into:
(1) the shell or the box module to the general gear box, that is, its supporting box, which is the box. It is a major module of the reducer. The axis system and gear support and closure are completed by it. For planetary gear boxes, it is generally called a shell module.
(2) Basic modules selected in the product according to the determined Speed ​​series and combination requirements in the product of the gear module series.
(3) The end cover module includes the cover cover and the stuffing cap.
(4) The axis module includes light shaft, hollow axis, and flower keys.
(5) Drive unit modules include motors (AC, DC, frequency conversion), hydraulic motor modules, etc.
(6) cooling fan module.
(7) The bearing seat module is applied to the umbrella gear gear box and the planetary gear box, and the basic box or shell module constitutes a complete box module.
(8) Planet rack module is mainly used in the planetary gear box series.
(9) The lubricating device module is a must -have module for the module.
(10) The transition module driving module and box module, or the transition module required for the connection of different types of box modules.
(11) Other supporting component modules such as oilmark modules, air -breathable cap modules, anti -force bracket modules, installation base modules, and so on.
of course, according to the different application environment or installation methods, there may also be other basic functional modules and division methods. In short, everything should be based on the design and manufacturing process. Division and design of functional modules.
10.2 Factors that should be considered when dividing and designing
(1) Functional requirements
It refers to the requirements that must meet the strength, stiffness, stability and other aspects that must meet the purpose of specific use. In addition, it is also necessary to pay attention to the relatively complete functionality of the module. For example, the shell module should meet the stiffness and strength requirements of the bearing support, meet the connection requirements with other related joint modules, and meet the requirements of heat dissipation and leakage.
(2) Economic requirements
The quality of different shapes, structures, materials and molding methods and processing determines the advantages and disadvantages of a module economy. Some functional modules may have two choices. One is directly selected as the shell, and the two sides are connected to the bearing seat. At this time, because the gear module is forged, the size should be as small as possible during the module design. Try to stretch the bearing seat with cast iron as much as possible, so as to save the weight and cost of the forging part as much as possible. Another treatment method is that the overall cast shell can be used, and the inner gear is inlaid into the shell. This can be partially smaller, but the shell will be significantly thick and the overall size will be increased. At present, most general products are designed in the previous module.
(3) Styling requirements
one of the characteristics of modern product technology development is to pay more and more attention to the beauty of product design, appreciation, artistry and pleasant requirements, so they are fully met the product function requirements Under the premise, it is necessary to fully take into account the requirements of its artistic shape and pleasant. Of course, in the process of designing this process, it is necessary to fully consider the requirements of the use environment and users. It cannot be uncoordinated or costly due to the effect of excessive pursuit of its artistic shape.
(4) Craftsmanship
The module selection should be convenient for molding, easy to process, and easy assembly and disassembly. Try to avoid the use of special forming methods, special materials, special equipment and tooling Or the difficulty and cost of maintenance.
(5) Maintenance requirements
In the function module selection, you should also pay attention to make it a relatively independent replaceable module, so that it is easy to replace and replace when damaging or failure.
It is easy to see that the above requirements of the above aspects of module design are often interconnected. When the specific design should be designed, we should comprehensively weigh and coordinate the processing, and properly handle the relationship between the master and secondary, first and then. In addition, the module design must also have some considerations on its function expansion, so that the module plays a greater role in the development of the overall product series.
11 Overview of foreign modular reducers
The introduction of the development of foreign modular reducers has been introduced in relevant reports. It involves product specifications of companies such as FLENDER, Sumitomo, SEW, Rossi, David Brown, PIV Drives and other companies. Introduction to SEW’s modular combination system here. The company constitutes the SEW -unique transmission module combination system with a centralized standard parts, which can theoretically complete thousands of combinations. This system requires that the parts of all products need to use the most modern manufacturing process and automatic processing production line for large quantities. Therefore, they can bear a large amount of processing. Each structural component can be perfectly optimized and the combination can be perfectly optimized. Provide various requirements for selection and services.
The module combination that contains four levels:
. The power module (MOVITRAC frequency conversion shochroma or AC electrometer, Movimot inverter reducer all -in -one, Movidrive vector inverter or servo motor) ;
2. Banded or cone -plate ring -panel -free transmission, couplet, low tooth gap planetary reducer;
, ultra -low -speed additional diagonal gear reducer, input shaft module; r; r;
. Q, M, C series large -scale industrial reducers, S series right output worm reducer, K series right output oblique gear -umbrella gear reducer, F series shaft oblique gear reducer (non -expanded parallel parallel parallel parallel Axis), R series sloping gear reducers (coaxial, RX series are single -level non -homobic axis), W series are nine species such as SPIROPLAN spiral plane gear sidelines and SEW micro -reducer motors. The maximum power of the deceleration motor is 280kW, the maximum output torque of industrial reducer is 1200kn • m, the power is 7500kW, and the maximum power of the inverter is 160kW. It can form a pure deceleration or transmission transmission system. Among them, the R, F, K, and S series are the most commonly used. The R, F, and K series can be used in series with the R series reducer with a level 1 to 3 to obtain a large transmission ratio. , K -R. The S series only has a level 2 transmission of the diagonal gear and the worm wheel. Its installation methods include bottom installation (no suffix), the bottom of the bottom of the bottom (suffix AB), the bottom flower key shaft (VB), the bottom of the bottom empty heart shaft lock (HB), the flange installation (F is B5 flange , Z is B14 flange), TORGLOG hollow axis installation (T) and mixer dedicated (M).
RX single model/TMAX 57/69n • m, 67/134, 77/215, 87/405, 97/595, 107/830
W has only a few models, small specifications, steel spiral plane plane Gear SPIROPLAN, TMAX = 70 n • m

The model is reasonable to sort by the maximum output torque, because the maximum output torque limits mechanical power. Therefore, in the sample of the company, the forms of output speed NA, torque MMAX and i are formulated according to the model, and the selection table is formulated according to the motor PM, NA, Mi, I, and i sorting. The company’s samples have a lot of output speed and transmission ratio, and the public ratio is irregularly arranged. It may be that the company gives the company’s accumulated experience, which is more conducive to the selection of users. The selection method is very detailed, and even stipulates the relationship between the varieties and quantity and installation method of the lubricant, as well as the reduction in a sterile production reducer.
In addition, the Belgian Hansen Company formed a 2320 transmission ratio with 17 pairs of arc -tooth cone gears and 28 pairs of oblique tooth cylindrical gears, 8 types of box modules. Arranging requirements. The box is square and can be installed six sides.

The first part: GM cylinder, cone gear reducer series product introduction
. Introduction to foreign development
In mechanical transmission basic parts, gear reducer occupies a very important position Its product level and quality have a significant impact on mechanical products.
The development trend of gear reducers at home and abroad, the level of product manufacturing is further precision, and the carrying capacity has been further improved. The degree of modular exchange between different series of products is getting higher and higher. A large number of production provides convenience, and also leaves room for further expansion of the product. At present, several typical transmission basic parts in the world have unique modular product portfolio system and extremely rich product series. The product sales network is all over the world.
In abroad, there is no national standard for the gear reducer series. Only the company’s own series of products and standards. The products and standards of each enterprise are basically updated every 5 years. The reducer manufacturer represented by FLENDER, Sumitomo, and SEW, its latest products have the following characteristics:
(1) Gear uses high -quality low -carbon alloy steel with high Ni, grinding teeth, gear accuracy is higher than GB6 than GB6 Level, and renovate (repairs);
(2) Modified design, high degree of exchange, reduce parts inventory, shorten the supply cycle;
(3) Multi -faceted installation; r; r; n (4) There are many types of output types (there are cylindrical shafts, flanges, hollow shafts, hollow shafts with tight dish);
(5) The method of selecting is more detailed.
The brief introduction to several major foreign companies in recent years of major companies:
(1) FLENDER’s cylindrical gear reducer product series
flender’s latest cylindrical gear reducer The product series include H, BH, D, F and other types and dozens of series. Now list the technical performance parameters of its main series of products in Table 1.
Table 1 FLENDER company gear reducer The main technical performance parameters
Name speed ratio range power range
(kw) Specification number range
(kg)
h H1 single -level single level Gear reducer
H2 secondary gear reducer
H3 three -level gear reducer
H4 four -level gear reducer nB B2H cone — single -grade gear reducer n B3H Cone -dual -stage gear reducer
B4H cone -three -stage gear reducer
D coaxial gear reducer
F suspension gear reducer
n Gear reducer products have the following characteristics:
This use of modular design and multi -faceted installation. Among them, the box of the small specifications of the reducer is an overall structure, and the box of the large -scale reducer is a disartction structure.
b, the carrying capacity is large. Due to the use of fine techniques and high tooth surface contact rate, the nominal carrying capacity is significantly improved.
c, reasonable product specifications (R20/R40), users choose economic convenience.
D and output methods are diverse. There are various forms such as solid axes and hollow shafts with tight plates or keys.
e, there are many accessories, with cooling fans, cooling lubrication devices, inverter, etc., users can choose as needed.
(2) The cylindrical gear reducer product series of Sumitomo Heavy Machinery Company (2004)
It Japan Sumitomo Heavy Machinery Company launched a series of cylindrical gear reducer series products in 2004. Compared with the following changes:
The models increase to 26 specifications (9015-9136) (A = 112 ～ 224/A = 112 ～ 500/710)
n Thermal power increases
The two series of two categories of P and R. There are three types of installation types: horizontal installation, vertical installation, and upright installation. Its main technical performance

Sumitomo (BUDDDY BOX) motor straight column, cone gear reducer
The product’s products have the following characteristics:
a, the modular combination design and interchangeability of the use of section can be used, the series The number of boxes is small, and when the specifications are certain, the H2, H3, H4, R3, and R4 use the same box.
b and gears use a 25 ° pressure angle modification gear, which greatly improves the carrying capacity of the gear and the ability to withstand the impact load.
c, there are many accessories, which can achieve seat installation, torque balance rod installation, etc.
(3) SEW’s cylindrical gear reducer series (2004)
sew’s cylindrical gear reducer includes the four series of motor direct -connected reducer (S S, R, F and K (S The series is a worm snail reducer). M, MC, ML series and other types of industrial reducers. The estimated center distance is the R20 series.
This of the company’s gear reducer products has the following characteristics:
a, the product series includes both the medium -power gear reducer series and the small and medium -power reducer series. The modular design method is adopted, and the module interchangeability between each series is high, which is very convenient for organizing production and series of product expansion.
b, relative M, MC, ML series, S, R, F, and K four series motor direct -connected reducer module modules have high interchangeability and wide application range.
(1) The M series include two series of P (PV), R (RV) cylindrical, and conical cylindrical series. The two types of installation type and vertical installation are installed and 5 specifications (the end of the center center distance A = 425). P/R is universal. Casting body. The main technical performance parameters are shown in Table 4.
P (PV) series have levels of 2, 3, and 4; R (RV) series have level 3, 4, and 5.
Table 4 m series (A = 280 ～ 425)
(2) The C series includes two series: P (PL, PV, PE), R (PL, RV, Re) cylindrical, and conical column. Three installation types of horizontal installation, vertical installation, and upright installation, 8 specifications (the end -level center distance A = 315). P/R is universal. Casting body. The main technical performance parameters are shown in Table 5.
P (PL, PV, PE) series have level 2 and 3; R (RL, RV, RE) series have level 2 and 3.
Table 5 mc series (A = 160 ～ 315)

(3) The ML series includes two series of P, R cylinders, and conical cylindrical. Central distance A = 710). The P series has level 2, 3, and 4; the R series has only level 3. Welding body. The main technical performance parameters are shown in Table 6.
Table 6 ml series (A = 315 ～ 710)

. Domestic situation profile
(1) ZBJ19004-88 cylindrical gear reducer series profile )
Since the mid -1970s, with the development of various industries such as metallurgy, mines, chemicals, cement, etc., the performance requirements of equipment have become higher and higher. The noise has been reduced, and high -loading capacity, high life, and low noise are put forward to the transmission system, thereby promoting the development and update of the reducer. my country has studied universal hard tooth surface gear reducer since the late 1970s, completed the design of standard products in 1986, and formulated a new generation of reducer standard represented by the “Cylphy Gear Subtractive” (ZBJ19004-88).
I we call this type of reducer as a hard tooth gear reducer. After two decades of promotion and application, this series of reducer has been widely used in the mechanical transmission of various industries, which has improved the level of basic parts and complete products in my country. At the same time, due to the improvement of my country’s manufacturing level, its product performance has reached the time ( In the mid -1980s) international advanced level. The main technical performance parameters are shown in Table 8.

but some problems were found in the use of ZBJ19004 and other series of standard reducer
series spectrums were small and the capsules were not large enough; The preparation cycle is long;
has no presence of cylindrical gear reducer (DBY, DCY);
The inside of the product has many incompletes.
(2) JB/ZQ6101-2000 modular reducer series profile (Drafted by Western Heavy)
1, the reducer series spectrum
The reducer and cone, cylindrical gear reducer are installed. Extension to vertical installation.
The cylindrical gear reducer is: MP1 (single), MP2 (secondary), MP3 (level 3), MP4 (level 4);
cone, cylindrical gear reducer (Level 2), MR3 (Level 3), and MR4 (Level 4).

The characteristics of module -type reducer
The module type reducer continues to use carburizing quenching and grinding tooth hard tooth surface gear technology to retain the advantages of ZBJ19004 high load capacity. It also has the following characteristics:
(1) The use of modular design
Modular design is an important part of the series optimization. To achieve a building block combination, priority must be adopted. The main parameters of the series, such as the center distance, the nominal transmission ratio, and the center high, are based on the R20 priority, but the number of R40 priority for large -specified center distance is increased.
The main advantages of the priority:
This can meet the condition of the transmission ratio of the speed device equal to the conditions of the transmission ratio at all levels, so as to optimize the gear to optimize at all levels under the condition of cross -series swaps. Essence
This is convenient for building block combinations. The distance between the last level determines the width of the reducer and the size of the carrying capacity. The structure is based on the last level. Therefore, the size of the same part of the center can be exactly the same in appearance. The shape of the appearance can be exactly the same. It can be used in a combined mold, and the parts can be switched.
M: simplify the size and specifications of the parts, which greatly reduces the number of parts and rough in the series.
This use of modular design. The body and cover are the best. The gear, axis gear, axis and other interchangeability are the largest, and the number of parts is the least.
Clash -type decelerator body and cover instructions are shown in Figure 4.

It because of CAD technology, the modular design has realized the modular design and management of computer programming from the series spectrum to the design of the construction drawing.
(2) Optimized design
The gear optimization of the single -grade gear optimization determines the single -grade gear parameter and the intensity optimization of the multi -level transmission ratio. The optimization goals of a single gear are: a. The lowest contact and bending stress are the lowest and close to the same; b. Multi -level optimization goals are intensity at all levels.
(3) The nominal mechanical power of the reducer is increased by 15 % than the ZBJ19004 reducer.
The new structural design, improve the heat power of the reducer
The carrier capacity is mainly limited by its heat power. The body of the class, the body of the single -machine reducer is wider than the original body. The thermal power of the same specification can increase the average of 20 % than the ZBJ19004.
series of specifications of specifications are more reasonable
ZBJ19004 reducer specifications (unlimited central distance) are arranged according to the R20 priority series, dense when small specifications, and when large specifications (≥400), specifications, specifications, specifications, specifications, specifications, specifications, specifications, specifications The arrangement is relatively sparse, and the carrying capacity between each specification is large. The user can often only be relied on when choosing, resulting in an increase in user costs.
(6) The selection of more reasonable
The gear material coefficient is added, which is different from NI steel and non -NI steel to make the selection more reasonable.
The module reducer is synchronized with similar products from foreign companies to reach the advanced international contemporary level.
R series modular reducer series Introduction (southern high teeth)
1, the reducer series spectrum
Tramid series series: cylindrical gear reducer and cone, cylindrical gear reducer ; All are horizontal installation.
The cylindrical gear reducer: P2 (level 2), P3 (level 3), P4 (level 4);
cone, cylindrical gear reducer include: R2 (second), R3 (Level 3), R4 (Level 4): four series.
2. Features of module reducer
PR module -type reducer use of carburizing quenching and grinding tooth hard tooth surface technology, which has the following characteristics:
extremely high mechanical carrying capacity (higher than FLENDER)
pole pole pole High accuracy requirements (gear accuracy is higher than GB5 level)
otential parts: dedicated gear reducer product introduction
1. The increasing decrease in the amount of fossil fuel storage and the further improvement of environmental protection requirements. In the past ten years, wind power technology, which is known as green energy, has been paid more attention to it. The development of developed countries such as Europe and the United States in recent years is particularly rapid. Judging from the recent development trend of Europe and the United States, the Muwa -class wind turbine, such as 1.5MW, 2.0MW, 2.5MW, etc., has become a leading product, and has developed a 5MW wind turbine. Its development and application momentum is very rapid. The situation of inland and offshore wind power has appeared.
The currently used wind -generating units can be divided into basic types with multi -level gear boxes, semi -straight drive types with a single or two -stage gear box, and a straight drive type without gearboxes with a single or two -stage gear box. Large type. Although direct -driven products have developed rapidly in recent years, the mainstream products used in the market are still basic wind turbines with multi -level gearboxes.
The manufacturers of wind power gear boxes are currently in foreign countries. They are mainly German Winergy, Einhoff, RENK, Hansen, Rexroth and other companies. The dominant position of the market. The gearboxes in the units of more than 80%of my country’s wind power capacity are basically the products of the above companies, and the current situation of product supply is in short supply.
In my country, the development and development of high -power wind turbines is still just starting, but the development is extremely rapid. This is the result of the relevant preferential policies in my country in recent years. According to my country’s wind power development plan and energy demand forecast, the domestic wind power industry will have huge development space and market prospects.

The main features of the wind power generation growthage device:
The high reliability -not easy to repair and maintain high cost; R nThe complicated structure and diverse transmission forms -NGW multi -level cylindrical, NW cylinders, multi -level NW, multi -level NGW, etc.;
high precision, high requirements — gear accuracy is not less than 5; internal gear grinding teeth; Cingard inner gear;
The new processing process-super-fine grinding processing;
high investment, high risk
Gear life span: — anti-micro-eroding fatigue — super fine grinding processing ;
The dedicated anti -micro -point erosion synthetic gear oil;
The cleanliness of the body and the high oil;

The combination of the first -level planet gear transmission and the second -level parallel axis cylindrical gear transmission. The planetary gear transmission adopts multi -planet wheel transmission and solar wheel floating structure. And maintenance.

According to the data released by the “2015-2020 China Decades Industry Market Prospects and Investment Strategic Planning Analysis Reports” released by the Foresight Industry Research Institute, the data shows that from 2011-2012, my country’s deceleration mechanism industry operating indicators show a growth trend as a whole. In 2012, the industry’s industry industry The total output value was 65.808 billion yuan, an increase of 8.06%over the previous year; sales revenue was 64.365 billion yuan, an increase of 7.23%over the previous year; the total assets and liabilities of the industry were 52.378 billion yuan and 26.805 billion yuan, respectively. Under the new statistics, there were 439 companies above the industry scale (20 million yuan) in 2012, 74,701 employees, and a total profit of 4.704 billion yuan.
The “2015-2020 China’s Market Market Prospects and Investment Strategic Planning Analysis Reports” released by the Foresight Industry Research Institute analyzed that the downstream application industry of the reducer mainly includes lifting transportation, cement building materials, heavy mines, and heavy mines, and heavy mines,, heavy mines, and heavy mines, and heavy mines, and heavy mines, and heavy mines, and heavy mines, and heavy mines, and heavy mines, and heavy mines. Metallurgical, electricity and aviation ships such as the national economy and national defense industry. Due to the powerful downstream market, the development prospects of my country’s reducer industry are optimistic. The specific analysis is as follows:
. The demand prospect of the reducer of the lifting transportation equipment industry
According to the analysis of the market forward -looking and investment strategic planning analysis report of the decelerator industry, “the analysis of the analysis of the investment strategy of investment” believes that my country’s lifting transportation equipment manufacturing industry is facing good development opportunities. In 2013, my country’s external development environment was generally recovered, and domestic investment is expected to achieve rapid growth, which has created a good macro environment for the development of a long -term transportation equipment manufacturing enterprise. Raidering transportation equipment is the most widely used industry in the application. The development speed of the industry directly affects the rapid growth of the market demand for the reducer. It is expected that during the “Twelfth Five -Year Plan” period, my country’s lifting transportation equipment manufacturing industry will continue to maintain rapid growth. Benefiting from this, the demand for reducer will also be effectively pulled.
. The prospect of the demand for the reducer of the cement machinery industry
“The Twelfth Five -Year Plan for the Cement Industry” Twelfth Five -Year Plan “put forward the following goals for the development of the cement industry during the” Twelfth Five -Year Plan “period: by 2015, the scale The above -mentioned enterprise industrial added value increased by more than 10%, eliminating backward cement production capacity, the main pollutants achieved the discharge of standards, and the coordinated disposal made significant progress. For more than%, the production concentration of the top 10 companies has reached more than 35%.