In the field of mechanical transmission, the reducer is an intermediate device that connects the power source and the actuator. Usually, it uses the high-speed power of the motor, internal combustion engine, etc. through the pinion on the input shaft to mesh with the large gear on the output shaft to achieve the purpose of deceleration. And transmit greater torque. At present, the mature and standardized reducers include: cylindrical gear reducer, turbine reducer, planetary reducer, planetary gear reducer, RV reducer, cycloid reducer and harmonic reducer.

An industrial robot is a general-purpose machine equipped with a memory device and an end effector that can complete various movements or processes to replace human labor. Usually in production, it can replace workers to do certain monotonous, frequent and repetitive long-term operations, or operations in dangerous and harsh environments. It can improve production efficiency and product quality, and is an effective solution for companies to supplement and replace labor. At present, the development of industrial robots is characterized by high speed, accuracy, compact body structure, multiple degrees of freedom and improved rigidity. Key areas also require heavy load or fast response speed. For example, most of the electric welding robots produced by the automobile have a load between 150-300Kg, while the assembly robots in the electronic field need to respond quickly to the accessories on the assembly line. In the field of mechanical transmission, the reducer is an intermediate device that connects the power source and the actuator. Usually, it uses the high-speed power of the motor, internal combustion engine, etc. through the pinion on the input shaft to mesh with the large gear on the output shaft to achieve the purpose of deceleration. And transmit greater torque. At present, the mature and standardized reducers include: cylindrical gear reducer, turbine reducer, planetary reducer, planetary gear reducer, RV reducer, cycloid reducer and harmonic reducer. Since the 1980s and 1990s, under the development needs of emerging industries such as aerospace, robotics, and medical equipment, high-performance precision reducers with simple and compact structure, high transmission power, low noise, and stable transmission are required, among which RV reducers are harmonious Wave reducers are two important reducers in precision reducers.

In the past two years, after the relative precipitation, domestic reducer companies have made certain breakthroughs in both technology and cost control. Although the market is still dominated by foreign reducers, domestic reducers are also improving. Now, let's take a look at what domestic reducer companies have!

Harmonic reducer

Suzhou Green

The company has been engaged in the research and development of precision harmonic reducers for robots since 2003, and currently has more than 40 national patents.

In 2015, the company's precision harmonic reducer product series has reached seventeen, with an annual production capacity of 70,000 units.

In 2016, Green Harmonic sold more than 60,000 precision harmonic reducers, and its penetration rate in the domestic robot harmonic reducer market exceeded 80%, and its market share exceeded 50%.

In 2017, the revenue of harmonic reducers exceeded 200 million yuan, 15% of which were sold abroad. The new plant that will be put into production in 2018 is expected to add 500,000 units of production capacity.

Rifle Harmonic

Laifu Harmonic is a professional company engaged in high-precision harmonic reducers. It has an independent research and development center and has a number of technical patents in the field of harmonic drive.

The precision harmonic reducer developed and produced by it has the characteristics of high reliability, high precision, high torque, high life, large speed ratio, small volume, etc., and is widely used in robots, aerospace equipment, CNC machine tools, semiconductor manufacturing equipment, precision Mechanical drive control and other fields.

In 2017, the company's product shipments amounted to nearly 10,000 units, and revenue is expected to exceed 20 million yuan.

China Tech Kemei

Geekmei is engaged in the R&D, production and sales of harmonic drive reducers. It was listed on the New Third Board in July 2017, becoming the first harmonic reducer company to land on the capital market.

At present, the company mainly has 10 standard series products, including XB1/2/3/6, XBF, XBFF, XBS, XBD, XBHS, etc., with an annual output of 50,000 sets.

In 2017, the company achieved revenue of 20,427,600 yuan, a year-on-year increase of 2.32%; realized net profit of 1,235,700 yuan attributable to the parent.

Beijing Harmonic Drive

The company was established in 1983 and has long-term rich experience in the research and development of harmonic gear transmission technology and serving users.

The company mainly develops and sells standard harmonic reducers, harmonic drive components and designs non-standard motor sets according to user needs.

At present, the company has products covering XBD, XBD-A, XBD-B, XB1, XB2, XB3 and other series, which can cover the needs of many fields.

RV reducer

Nantong Zhenkang

The company was founded in 1993. In 2010, it was keenly aware of the huge potential of the future robot market, and focused on choosing the core component of the development robot-the joint (RV reducer) and the servo motor, which is the power component to start the joint.

At present, well-known domestic robot manufacturers such as Shenyang Xinsong, Anhui Eft, and Shanghai Huanyan have used Zhenkang RV reducer products in batches.

On January 2, 2018, Eft and Nantong Zhenkang formally signed the second strategic cooperation agreement. According to the agreement, Eft will purchase at least 3,000 Zhenkang RV reducers in 2018.

Lectra Precision

In 2009, Shanghai Lectra Precision Machinery Co., Ltd. was established, mainly producing precision control transmission products.

Since its establishment, it has 12 series of 522 specifications, nearly 10,000 speed ratio transmission products, complete product specifications and models, which can fully realize interaction and replace imported products.

In 2015, four series of precision control reducer products, LKRV-E, LKRV-C, LKRV-N, and LKRV-S, were officially launched in 2015. It cooperates with most domestic main body manufacturers such as Estun and Guangzhou Qifan, and can supply them to manufacturers. Goods trial.

In 2017, Lectra's precision RV reducer shipments exceeded 5,000 units, and the existing equipment production capacity was 30,000 units.

Qinchuan Machine Tool

Qinchuan Machine Tool has the most complete range of domestic robot reducer manufacturers.

At present, its self-developed complete sets of special process equipment for robot reducers and serialized robot reducer products have been successfully sold to nearly 200 domestic and foreign robot manufacturers.

In 2017, sales revenue increased by 135% year-on-year, which has been able to partially replace imported products in the market.

Shanghai Electromechanical

On April 27, 2018, Shanghai Electromechanical released an announcement for the first quarter of 2018, stating that the company's revenue was 3.982 billion yuan, an increase of 4.93% year-on-year, and the net profit attributable to the parent was 239 million yuan.

In terms of reducers, the precision reducer products developed in cooperation with Nabtesco of Japan were officially put into production in May 2016, and the production capacity has reached 100,000 units/year ahead of schedule.

Subsidiary Nabo Precision Machinery began to realize a single month of profit in May 2017, and is now accelerating the basic investment of related production facilities, and plans to reach a production capacity of 200,000 units.

Hengfengtai

Hengfengtai is an enterprise specializing in precision transmission technology and industrial applications. In 2006, it began to develop the first CORT movable tooth technology precision reducer.

Up to now, we have developed three series of CORT, HORT (RV), KORT models and more than 30 types of reducers, which basically meet the requirements of 5kg~500kg industrial robots. Robot manufacturers including Eft, Boshi Automation, etc. partially adopt its products.

Operating income in 2017 was 179 million yuan, an increase of 21.8% over the same period of the previous year; the net profit attributable to shareholders of the listed company was 7,309,100 yuan.

Double ring transmission

For the development of robot reducers, Shuanghuan Transmission has established a relatively complete comprehensive performance test platform, including self-developed test equipment for transmission accuracy, backlash, stiffness, efficiency, noise, air tightness, and accelerated fatigue experiments. At the same time, it has established There are complete robot accuracy testing and complete machine fatigue laboratory.

On March 19, 2018, the company announced the signing of the "Joint Reducer Strategic Cooperation Agreement" with Eft. According to the agreement, Eft will purchase 10,000 sets of RV reducers from the company before June 30, 2019.

The company has been cultivating RV reducers for 4 years. The cooperation with Eft indicates that the company has broken through the key core technology of RV reducers and has entered the stage of substantial supply.

Great Wheel Intelligence

Greatoo has been deeply involved in RV reducers for many years and has mastered core technology.

The RV reducer developed by it has the characteristics of reducing friction consumption, reducing heat generation, improving output efficiency, reducing total cost, improving reliability, extending product life, and obtaining a wider range of transmission ratios, which can meet the requirements of industrial robots. It is the transmission requirement of industrial robots with six degrees of freedom.

The release of the 2017 annual report shows that in terms of technology development, the core component of the robot product "RV reducer" has obtained the national invention patent.

Guangzhou CNC

Founded in 1991, Guangzhou CNC has been determined to break through the technological blockade of core components since it began to cut into industrial robots in 2006.

In 2008, Guangzhou CNC made a key decision-to establish a project to develop industrial robot reducers. After years of research, Guangzhou CNC has achieved breakthroughs in the accuracy and stability of the two most important properties of RV reducers, and has obtained two patents for industrial robot reducers.

At present, Guangzhou CNC has independently developed multiple specifications and models of precision reducers, and has tested applications on industrial robots developed by itself, which are functionally close to similar foreign products.

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