Summary:...
Try to choose a reduction ratio close to the ideal:
Reduction ratio = servo motor speed / gear motor output shaft speed
Torque calculation:
For the life of the geared motor, the torque calculation is very important, and it is necessary to pay attention to the maximum torque value (TP) of the acceleration, whether it exceeds the maximum load torque of the geared motor.
Geared motor model selection and precautions:
The applicable power is usually the applicable power of the servo models on the market. The applicability of the geared motor is very high, and the working coefficient can be maintained above 1.2, but the selection can also be determined according to your own needs:
There are two main points:
A. The output shaft diameter of the selected servo motor cannot be larger than the maximum used shaft diameter on the table.
B. If the torque is calculated, the speed can meet the normal operation, but when the servo is fully output, if there is insufficient phenomenon, we can do current limiting control on the driver on the motor side, or do torque protection on the mechanical shaft. is necessary.
Small three-phase asynchronous motors, usually including H80-315MM motors, have large output and wide applications. In the total load of the power grid, the power consumption of the motor is about 40%. In the early 1960s, the JO2 series motors were popular. The power levels and installation dimensions of this series of motors are different from the general standards in the international market. In addition, the motor has low starting torque and lacks noise control indicators. Therefore, the deceleration currently used in my country is The motor is a Y series motor. The motor is durable, safe and reliable, so it can be used more and more widely. However, the annual damage rate of the geared motor used by some users is as high as 5%, and the reason is mostly due to improper selection, improper use and poor protection. Therefore, it is found that the quality problems occurred in the use of the motor are properly solved.
The system of small asynchronous motor
Small asynchronous motors can be divided into: basic motor series, motor derived series and motor special series.
Basic series----wide range of use, large production capacity, is a general purpose motor, such as Y series (IP44) small three-phase asynchronous motor.
Derivative series——According to different usage requirements, some changes have been made on the basis of the basic series, and the other parts have a higher versatility and a certain degree of unity with the basic series. Derivative series include electrical derivatives (such as high-efficiency motors, YX series), structural derivatives (such as wound rotor motor YR series), special environment derivatives (flameproof motors, YB series) and so on.
Special series-----different from general purpose, series with special requirements and special protection conditions, such as YZ, YZR metallurgy and asynchronous motors for hoisting.
At present, in the mechanism used to transmit power and motion, the application range of geared motor is quite extensive. Its traces can be seen in almost all kinds of mechanical transmission systems, from ships, automobiles, locomotives, heavy machinery for construction, processing machinery and automated production equipment used in the machinery industry, to common in daily life. Home, clocks, etc. Its applications range from the transmission of large power to small loads and precise angle transmission. The application of the reducer can be seen, and in industrial applications, the reducer has the functions of decelerating and increasing torque. Therefore, it is widely used in speed and torque conversion equipment.
The reducer is a power transmission mechanism, and it is used in applications where high torque and high speed are not required. For example: conveyor belts, mixers, hoists, clappers, automation special machines... And with the development of the industry and the automation of factories, the demand for the use of reducers is growing day by day. There are usually many ways to reduce speed, but the most commonly used method is to use gears to reduce speed, which can reduce the occupied space and reduce costs, so some people also call the reducer a gear box (GearBox). Usually the gearbox is a combination of some gears. Because the gearbox itself has no power, it needs a driving component to drive it. The driving component can be a motor, an engine or a steam engine.
The biggest purpose of using the reducer is as follows: 1. Power transmission; 2. Obtaining a certain speed; 3. Obtaining a larger torque. But in addition to the gear reducer, the spherical gear motor developed by Kamo Seiko provides another value, that is, high-precision transmission, and high transmission efficiency, which is an epoch-making new transmission structure.
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