Worm gear reducer is a power transmission mechanism that uses gear speed converters to reduce the number of revolutions of the motor to the required number of revolutions and obtain a larger torque. In the mechanism used to transmit power and motion, the application range of the reducer is quite wide. It can be seen in the transmission system of all kinds of machinery, from ships, automobiles, locomotives, heavy machinery used in construction, processing machinery and automatic production equipment used in machinery industry, to common household appliances in daily life. , Clocks and so on. Its applications range from large power transmission work to small load and precise angle transmission. The reducer can be seen in the application, and in industrial applications, the reducer has the function of reducing speed and increasing torque. Therefore, it is widely used in speed and torque conversion equipment.
Structure
The basic structure of RV series aluminum alloy worm gear reducer is mainly composed of transmission parts worm gear, shaft, bearing, box and accessories. It can be divided into three basic structural parts: box body, worm gear, bearing and shaft combination. The box is the base of all the accessories in the worm gear reducer. It is an important accessory that supports the fixed shaft system components, ensures the correct relative position of the transmission accessories and supports the load acting on the reducer. The main function of the worm gear is to transmit the motion and power between the two interleaved shafts, and the main function of the bearing and the shaft is to transmit power, operate and improve efficiency.
Some accessories of worm gear reducer are explained as follows:
1. Shell: aluminum alloy (frame: 025-090) cast iron (frame: 110-150);
2. Worm: 20Cr steel. Carbon and nitrogen co-infiltration treatment (maintain the tooth surface hardness HRC60 after fine grinding, and the hardness thickness is greater than 0.5mm);
3. Worm gear: wear-resistant nickel bronze with special configuration;
4. Oil cap/ventilator: mainly used to discharge the gas in the casing of the worm gear reducer;
5. End cover: It is divided into a large end cover and a small end cover. The end cover is used to fix the axial position of the shaft system components and bear the axial load. The two ends of the bearing seat hole are closed with bearing covers;
6. Oil seal: It is mainly used to prevent the leakage of lubricating oil inside the chassis and improve the use time of lubricating oil;
7. Oil drain plug: mainly used for draining dirty oil and cleaning when changing lubricating oil;
8. Oil standard cap/oil standard: mainly used to observe whether the amount of oil inside the casing of the worm gear reducer meets the standard.
Function
The main functions of the worm gear reducer are:
1. Reduce the speed and increase the output torque at the same time. The torque output ratio is the motor output multiplied by the reduction ratio, but it must be noted that the rated torque of the reducer cannot be exceeded.
2. Deceleration reduces the inertia of the load at the same time, and the reduction in inertia is the square of the reduction ratio. You can see that a general motor has an inertia value.