The role of the key reducer of industrial robots

　　The operation of industrial robots mainly depends on servo motor, reducer and controller are used for control. The reducer is used to precisely control the movement of the robot joints and transmit greater torque. At present, common reducers are mainly divided into two types, namely RV reducers installed in heavy-load positions such as the arms and shoulders of industrial robots, and harmonic reducers installed in light-load positions of the forearm, wrist and hand.

　　The industrial robot joint reducer is a device used to reduce the amount of clearance and improve the accuracy of industrial robot systems. It does this by reducing the rotational play between the gears. This improves accuracy when moving parts and reduces errors during movement. The importance of installing reducers at industrial robot joints is that it can improve the overall accuracy of the industrial robot system.

　　The industrial robot joint reducer can also provide greater torque transmission. When the joint load of the industrial robot is large, it is not cost-effective to simply increase the power of the servo motor. The output can be increased within an appropriate speed range through the reducer. In addition, the servo motor is prone to heat and low-frequency vibration under low-frequency operation, which is not conducive to ensuring long-term stability. The industrial robots that work periodically and periodically operate accurately and reliably.

　　Types of joint reducers for industrial robots

　　Common reducers in joint robots include RV reducers and harmonic reducers. For industrial robots with small loads or multi-axis at the end of large robots, the harmonic reducer is a harmonic drive. The harmonic reducer is composed of several key parts: rigid wheel, flexible wheel, bearing and wave generator. Among them, the number of teeth of the rigid wheel is slightly larger than that of the flexible wheel. The harmonic reducer for small robots has the characteristics of small size, light weight, large carrying capacity, high motion accuracy, and large single-stage transmission ratio.

　　The RV reducer has the advantages of small size, strong impact resistance, large torque, high positioning accuracy, low vibration, and large reduction ratio. Therefore, it is mainly used in industrial robots, machine tools, and medical fields. In addition, it is also suitable for detection equipment, satellite receiving systems and other fields.

　　RV reducers are suitable for medium and heavy duty applications due to their high shock resistance and high precision. The RV reducer needs to transmit large torque, withstand large overload shocks, and ensure the expected service life. In the design, a relatively complex over-positioning structure is adopted, and the manufacturing process and cost control are difficult. There is no elastic deformation force component inside the RV reducer, so it can bear a certain torque. The bearing of the RV reducer is its weak point, and it is easy to break through the bearing force limit, resulting in abnormal bearing wear or breakage. This problem is more prominent at high speed, so the rated torque of the RV reducer decreases significantly as the input speed increases.

　　The article mainly introduces the functions and types of the industrial robot joint reducer. Through the content of the article, it can be understood that the industrial robot joint reducer is a device used to reduce the amount of clearance and improve the accuracy of the industrial robot system. It does this by reducing the rotational play between the gears. This improves accuracy when moving parts and reduces errors during movement.