Car structure-main reducer mind map

An article about "Car Guts" - Main Reducer Mind Map, including bipolar main reducer, wheel reducer, Double-stage main reducer, etc.

Edited at 2023-12-04 21:46:03

PlotWizard

Recent works View more works>>

Car structure-main reducer mind map

PlotWizard

Recent works View more works>>

Recommended to you
Outline

Basic terms and expressions of automobile engines
- 22
PlotWizard
The basic structural components of a car engine
- 43
- 1
PlotWizard

main decelerator

Overview

Function: Increase the input torque and reduce the speed accordingly, and also change the direction of torque rotation when the engine is placed longitudinally.

Classification

1. According to the number of gear pairs participating in the reduction transmission, there are single-stage main reducers and bipolar main reducers.

2. According to the transmission ratio of the main reducer, there are single-speed type and two-speed type.

Gear type

Cylindrical gear transmission

Spiral bevel gear transmission

Hypoid bevel gear transmission

Worm gear drive

Unipolar main reducer

The single-stage main reducer is mainly composed of a pair of reduction gears to achieve reduction, which is called a single-stage reducer. This kind of reducer has a simple structure, small mass, small volume, and high transmission efficiency. It is usually used in cars and general light and medium-sized trucks.

Two-stage main reducer

A two-stage final reducer is a mechanical device used to reduce the speed of the input shaft and increase the torque of the output shaft. It consists of a cascade of two reducers, where the first level reducer reduces the input speed to an intermediate speed, and then the second level reducer reduces the intermediate speed to the required output speed. This design allows for a larger reduction ratio and higher efficiency. Double-stage main reducers are commonly used in industrial machinery, automotive transmission systems, and ships.

wheel reducer

The wheel reducer is the last stage of reduction and torque increasing device in the automobile transmission system. It can reduce the load on the transmission, drive shaft, main reducer, differential, half shaft and other components under the same overall transmission ratio. , the size becomes smaller and the drive axle obtains a larger ground clearance and other advantages. The wheel reducer usually consists of a sun gear, a planet gear, a planet gear carrier and a ring gear. The sun gear is connected to the half shaft, the planet gear carrier is connected to the wheel, and the ring gear is connected to the axle housing. This is equivalent to adding a set of planetary gear reduction mechanisms at the wheels. This reduction mechanism can continue to reduce speed and increase torque on the basis of the main reducer reducing speed and increasing torque, which is equivalent to two levels of torque amplification. Therefore, wheel reducers are very practical when large torque output is required.

Bipolar main reducer

The bipolar main reducer is a reduction device commonly used in industrial equipment. It consists of two gears and a shaft. This reducer converts the high-speed rotation of the motor into low-speed output through the deceleration effect, and is suitable for various types of mechanical equipment, including wheeled devices, conveyor belts, robots, etc. The main advantage of the bipolar main reducer is that it has a large main drive ratio, which can meet the needs of many industrial application scenarios. However, when the main transmission ratio is too large, the single-stage main reducer may have the problem that the gear is too large, resulting in oversize and insufficient minimum ground clearance. At this time, a two-stage main reducer with two pairs of gears for speed reduction is needed to solve this problem. In general, the bipolar main reducer is an efficient and reliable reduction equipment suitable for many industrial application scenarios.