Industry News – 浙江三凯机电有限公司

sankai — Fri, 02 Jun 2023 03:44:46 +0000

The reducer, like other equipment, has certain requirements for the use environment. Generally speaking, the allowable temperature range of the reducer working environment is between -40°C and 45°C. If it exceeds this range, it is likely to give The performance of the reducer has a certain negative impact. Note that if the temperature of the operating environment is lower than 0°C, we need to preheat the temperature of the lubricating oil to above 0°C.

Temperature is a big factor affecting the service life of the reducer. If the operating temperature exceeds the limit working temperature for a long time, the aging of the insulating material will be accelerated, thereby greatly shortening the service life of the reducer. Therefore, during the operation of the reducer , if it is necessary to operate under the extreme working temperature, please take corresponding precautionary measures to reduce the damage to the reducer as much as possible.

It is best not to use the reducer in an environment with a lot of dust to prevent the dust from entering and hindering the normal operation of the equipment. Once the dust enters the equipment, it will accumulate on the gears and other parts, causing wear and tear on the reducer. In addition, when the reducer is working, the working temperature of the lubricating oil should not exceed 90°C. If the temperature is too high, the viscosity of the lubricating oil will be reduced and the bearing capacity of the lubricating oil film will be reduced.

Industry News – 浙江三凯机电有限公司

sankai — Fri, 02 Jun 2023 03:35:17 +0000

The worm gear reducer is a power transmission mechanism that uses the speed converter of the gear to reduce the number of revolutions of the motor (motor) to the desired number of revolutions and obtain a larger torque. In the mechanism currently used to transmit power and motion, the application range of the reducer is quite wide. The selection of the worm gear reducer mainly considers three aspects, calculating the speed ratio, calculating the torque, and the direction of the input shaft.
Worm gear reducer selection method:
1. Calculation of speed ratio: try to choose a reduction ratio close to the ideal, the calculation method of speed ratio is as follows: reduction ratio = motor speed (standard speed 1400) / reducer output shaft speed;
2. Calculate the torque: For the life of the reducer, the calculation of the torque is very important, and it is necessary to pay attention to whether the maximum torque value of the acceleration exceeds the maximum load torque of the reducer;
3. Determine the direction of the output and input shafts: the reducer has a horizontal type and a vertical type, and the directions of the output and input shafts are as follows: L direction: single input and single output, the input shaft is at the right end, and the output shaft is at the front; R direction: single input and single output , the input shaft is at the left end, the output shaft is at the front; V direction: single input and double output, the input shaft is at the left end and the double output shaft is at the front/back; W direction: double input and single output input shaft is at the left and right ends, and the output is at the front; F Direction: double input and double output, the input shaft is at the left and right ends, and the output is at the front/rear;

In general, worm gear reducers often have to limit the maximum radial load allowed by the middle part of the input shaft and output shaft shaft extension, which should be checked. If it exceeds, it should be proposed to the reducer factory to increase the shaft diameter and increase bearing requirements. In addition, when choosing a worm gear reducer, you need to look at the production capacity of the manufacturer. Considering the establishment time of the manufacturer’s brand, the longer the establishment time, the more experience the entire equipment has accumulated in the production of this equipment. Of course, when you often buy things, you will find that people still feel that the quality of old brands is relatively better. This is a process of accumulating experience.

Industry News – 浙江三凯机电有限公司

sankai — Fri, 02 Jun 2023 03:19:07 +0000

Regarding the lubrication of the reducer, it is also a very important link for the maintenance of the reducer. Open and semi-open gear reducer transmission, or closed gear transmission with low speed, is usually lubricated periodically by human workers, and the lubricant used is lubricating oil or grease. The lubrication of the reducer also has its own conditions, and the lubrication conditions for different reducers are also different. Let’s take a look at how the Shanghai Jinchuan reducer lubricates the gear reducer.

When the peripheral speed of the gear of the reducer is greater than 12m/S, oil injection lubrication should be used, that is, the oil is supplied by the oil pump or the central oil supply station at a certain pressure, and the lubricating oil is sprayed onto the meshing surface of the gear teeth through the nozzle. When v�?5m/s, the nozzle can be located on the tooth meshing side or on the side of the tooth; when v>25m/s, the nozzle should be located on the side of the tooth tooth, so that the lubricating oil can be used to cool the teeth that have just meshed in time. The gear teeth are also lubricated at the same time.

For general closed gear reducer transmission, the lubrication method depends on the peripheral speed of the gear. When the peripheral speed V of the gear is less than 12m/s, the gear teeth of the large gear are often immersed in the oil ground for oil-immersion lubrication. In this way, when the gear is in transmission, the lubricating oil is brought to the meshing tooth surface, and the oil is also thrown to the box wall to dissipate heat. The depth of gear immersion in oil depends on the peripheral speed of the gear. For cylindrical gears, it usually does not exceed one tooth height, but generally it should not be less than 10mm; for bevel gears, it should be immersed in the full tooth width, at least one tooth width half. In multi-stage gear transmission, the oil can be brought to the tooth surface of the gear that is not submerged in the oil ground by means of the oil tanker.

The amount of oil in the oil pool depends on the power transmitted by the gear. For single-stage transmission, the oil demand is about 0.35~0.7Lo for every transmission of Ikw power. For multi-stage transmission, the oil demand increases exponentially according to the number of stages.