The Advantages And Disadvantages And Development Trends Of various Types Of Reducers
At present, the commonly used reducers in China can be roughly divided into five categories: gear reducers, planetary gear reducers, worm gear reducers, pendulum pin wheel reducers and various hybrid gearboxes. In addition, there are some other types of reducers. Machine, but the application is not very common yet.
1. Gear reducer is the most widely used type of geared motor, which includes cylindrical gear reducer, bevel gear reducer and conical-cylindrical gear reducer, etc., with the domestic production of Fenderer, SEW and other companies With the increase in market expansion, many types of cylindrical gear reducers have been applied in my country, such as the R, F, and K series reducers used by SEW for medium and small power, and there are also expandable cylindrical gears for medium and high power. Reducer, extruder and mixer special cylindrical gear reducer, etc. The above-mentioned types of products are not only produced by foreign companies directly in the country, but some of the nearly 100 domestic manufacturers produce domestic standard ZDY, ZLY, ZSY, DBY and DCY series products and non-standard products. Most of the other manufacturers also produce It is a series of imitation foreign products. An indisputable fact is that the product system of such products in the industry is basically dominated by foreign companies, which is obviously not conducive to the growth of domestic reducer companies and the development of the industry, and can easily lead to product property rights disputes. One adopts modularization. A product series system with design technology and independent intellectual property rights needs to be established urgently. However, due to the influence and restriction of various factors, despite the appeals and efforts of many domestic institutions for many years, the progress has not been satisfactory, and the prospects are still unclear.
2. Planetary gear reducer is another type of transmission product that is also commonly used in the market. Due to the series of advantages of planetary gear transmission technology itself, it is also due to the rapid development of my country’s industry in recent years, which has greatly promoted In response to the rapid development and application of planetary gear transmission technology in China, various planetary gear transmission technologies and corresponding products have been developed and applied. The product varieties and specifications have gradually enriched, and the maximum transmission load of the products has reached an unprecedented level. The performance has basically reached the advanced level of similar foreign products. With the improvement of the equipment conditions of relevant domestic manufacturing enterprises, many enterprises have also joined the ranks of planetary gearbox manufacturers in recent years. At present, the typical domestic planetary gear transmission product R&D, design and manufacturing units are: China National Heavy Machinery Research Institute Co., Ltd., More than 20 companies including Nanjing High-precision Gear Group Co., Ltd., Chongqing Gearbox Co., Ltd., Luoyang Zhongzhong Gearbox Co., Ltd., Jingzhou Giant Whale Transmission Machinery Co., Ltd., Dalian Crane and Heavy Industry Group Co., Ltd., and Second Heavy Machinery Group Co., Ltd. .
3. Worm gear reducer and its characteristics:
Serial Number Name Standard/Series Description Features
1 Circular arc cylindrical worm reducer JB/T7935-1999 adopts ZC1 worm and good performance
2 Plane enveloping toroidal worm reducer GB/T16444-2008JB/T9051-1999 adopts toroidal worm and good performance
3 Cone enveloped cylindrical worm reducer JB/T7936-1999 adopts ZK1 tooth profile, suitable for small and medium specifications
In addition to the above types, there are some other types of worm reducer series on the market, but they are no longer listed due to limited use or small production quantities.
The modular update of the worm gear reducer has been completed, and the performance is close to that of foreign products. Work should continue to be carried out on product types and updated series to launch a new generation of products in a timely manner.
4. Cycloidal pinwheel reducers are mainly used for medium and small power transmissions with large speed ratios. The current domestic product standard is mainly JB/T2982-1994. Because the product performance has a large gap compared with foreign countries, it has experienced After a few years of “cycloid fever”, the number of manufacturers of cycloidal pinwheel reducers has dropped sharply in recent years, and many manufacturers have stopped producing such products and switched to other types of products. Realizing product performance improvement and upgrading as soon as possible is also an urgent choice that should not be avoided when the cycloid pinwheel reducer seeks vitality.
5. There are many types of various hybrid gearboxes, which are basically special series or non-standard products, such as wind and hydropower speed-increasing gearboxes, vertical mill main drive gearboxes, large extruder gearboxes, and so on. In recent years, with the rapid development of the domestic economy, the development and manufacturing of hybrid transmission cases have been developed rapidly, and the product level is basically equivalent to that of foreign countries. It can be predicted that with the continuous development of technology in various industries, there is still a lot of room for the development and application of various types of hybrid transmission boxes, and will surely achieve greater development.