In recent years, with the rapid development of the industrial robot industry, but also promote the rapid development of its surrounding industries, harmonic reducer bearing this industrial robot professional supporting equipment, I believe every friend in the field of industrial robots are not strange.
Harmonic reducer bearing is mainly used for supporting harmonic reducer, which is the main part of industrial robot.
In the past, the harmonic reducer mainly relies on imports, the import price is high, so that the domestic robot industry raised a lot of costs, further restricting the development of the domestic robot industry.
Origin of harmonic reducer:
In the mid-1950s, with the development of global science and technology, maser invented a new harmonic transmission technology based on the theory of elastic deformation of thin shell and the principle of metal flexibility and elasticity mechanics.
Harmonic drive technology is mainly used in aerospace, industrial robots, precision instruments, radar communication equipment, printing machinery, textile machinery, semiconductor wafer transmission device, printing and packaging machinery, medical equipment, metal forming machinery, instruments, optical manufacturing equipment, facilities and aerodynamic experiments, etc.
Structure drawing of six-axis industrial robot
The appearance of the new harmonic transmission technology has aroused the attention of many countries.
Introduced to Japan in 1970, it has become the country's first integrated motion control leader, Harmonic Drive SystemsInc.(HDSI).
HDSI Harmonic Drive Harmonic reducer, with light weight, small size, high transmission efficiency, wide deceleration range, high precision, is widely used in various transmission systems.
HDSI mainly produces and sells a variety of precision deceleration devices, well deserved as the overall movement control leader.
In order to cover the low reduction ratio that harmonic speed reducer can't cover, HDSI also developed the HarmonicPlanetary precision gear reducer.
The unique internal gear ring changing process can make the planetary gears mesh more tightly and eliminate the back gap, so as to control the transmission error in the precision range.
In recent years, China's industrial robot industry has entered a new period of historical opportunities. International robot companies represented by ABB, KUKA, yaskawa and fanuc have entered China in large Numbers, setting up factories and seizing market share.
In China, such as mobile phone manufacturing, semiconductor, liquid crystal production machinery and other industries, the demand for small robots is also more and more strong, but for the domestic industrial robots, especially the harmonic reducer, servo motor and control system also needs a large number of imports, which leads to its competitiveness with foreign enterprises also have difference, but these are upstream of the industrial robot parts, key parts.
According to the international federation of robotics (IFR), China imported about 22,000 industrial robots in 2012, making China the world's fastest-growing industrial robot market.
HDSI's harmonic reducer is a small industrial robot (under 20kg) or an irreplaceable component on the joint arm, which brings a new opportunity for it to expand in the Chinese mainland market.
In January 2011, HDSI established hamernaco (Shanghai) trading co., LTD., a wholly-owned sales subsidiary invested by HDSI in China.
Mainly responsible for HDSI products in mainland China sales, selection and other technical support and after-sales service.
Early HDSI products are mainly reducer and other mechanical products, until now, the main HDSI products plus a number of mechanical and electrical integration products.
As for speed reducers, HDSI is based on HarmonicDrive and HarmonicPlanetary.
Its production of HarmonicDrive harmonic reducer, basically dominated the main international market, has the characteristics of the reducer has no other: high rotation precision/high positioning accuracy, small, light weight, high transmission efficiency, high reduction ratio, wide speed range, high precision, high torque capacity, no backlash, high efficiency and quiet operation and other characteristics, widely used in various kinds of transmission system.
In order to cover the low deceleration ratio field that cannot be covered by harmonic reducer, HDSI products also developed the HarmonicPlanetary precision reducer.
The unique internal gear ring changing process can make the planetary gears mesh more tightly and eliminate the back gap, so as to control the transmission error in the precision range.
Harmonic reducer only consists of three basic components: flexible wheel, wave generator and rigid wheel.
The outside diameter of the flexible wheel is slightly smaller than the inside diameter of the rigid wheel. Usually, the flexible wheel has 2 teeth less than the rigid wheel.
The elliptical shape of the wave generator determines that the tooth contact points of the flexible wheel and the rigid wheel are distributed in two opposites between the center of the ellipse.
As the wave generator rotates, the contact parts of the flexible wheel and the rigid wheel teeth begin to engage.
Each wave generator is clockwise rotate 180 °, soft wheel is equivalent to just wheel counterclockwise 1 tooth number difference.
In the 180 ° symmetrical two, more than 30% of the total number of teeth mesh at the same time, it also contributed to the high torque transmission.
After talking about the origin of harmonic reducer, we will understand the core harmonic reducer bearing
Precision bearing is an important and critical basic part in equipment manufacturing industry, which directly affects the performance, quality and reliability of major equipment and main engine products. It is known as the "heart" part of equipment manufacturing.
Industrial robot harmonic reducer, its supporting bearing precision, friction torque, rigidity directly affect the stability of the harmonic reducer and even the robot and safe operation.
Robot matching bearing is a market segment of bearing application, which is an emerging market developed with the rise of industrial robot industry.
Precision bearing for robot mainly includes: cross bearing for harmonic reducer, flexible bearing, RV reducer bearing, cross roller bearing, thin wall bearing with equal cross section, etc.
Harmonic reducer bearing
Harmonic reducer bearing is a professional harmonic reducer matching precision cross roller bearing.
There are two main types of harmonic reducer bearings: the CSF/CSG series harmonic reducer bearings as a whole and the BSHF/BSHG series harmonic reducer bearings as a whole.
For cylindrical roller, roller in mutual into 90 ° vertically in a "V" groove.
This structure enables a single bearing to bear the axial load, radial load and overturning torque load in all directions at the same time.
Its compact shape, with its own hole for direct installation, suitable for various types of harmonic reducer.
In recent years, luoyang yujie industry and trade co., ltd. has been working on the development and production of harmonic reducer bearings.
Is one of the more professional domestic manufacturers, precision can achieve P2, P4.
YOGIE bearings is a professional manufacturer of high-precision cross roller bearings. Through years of research and production reform, we have accumulated rich practical experience and can meet the needs of many customers.
At the same time for the country's hundreds of robot manufacturers to provide products, at the same time has gone abroad, exported to all over the world, has been widely recognized.
Do you have any specific questions about the Machining Services? Contact Yogie! Our sales engineers will work with you from start to finish to ensure that your project is completed to your requirements.
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