There are many parts in the car. People who buy a car for the first time don't know much about some parts of the car and don't know what they do. Among them, the most common reducer, many people don't understand its role in cars. First, what is an automobile reducer and what role it plays in the automobile.
What is a reducer?
In fact, the reducer is a kind of precision machinery, and it can also be said to be a power transmission mechanism, which is used to reduce the speed and increase the torque to meet the working needs of machinery. Almost all mechanical movements need reducers, and the production of reducers is relatively simple and efficient, which can be mass-produced. The reducer is mainly composed of gears, shafts, bearings, boxes and other parts.
What is the function of the reducer?
Reducers have many functions in automobiles. First, you can reduce the speed and increase the torque. The output power of the engine is fixed. With the reducer, the rotational speed can be reduced, so that more torque can be obtained, and thus more driving force can be obtained. In addition, with the reducer, the vehicle can better adapt to the road conditions, and the speed can be changed in detours, downhill and uphill places to ensure that the vehicle has enough power to pass.
What will happen to a car without a reducer?
From the function of the above reducer, we know that it plays a role in slowing down and increasing the distance in the mechanical movement of the car. The engine speed is very high, which can reach thousands of revolutions per second. It is definitely not possible to drive at such a high speed directly, because many parts simply can't stand such a high speed, so it is necessary to use a reducer and a gearbox in combination to make the car run normally, otherwise the car can't run normally at all, and even if it can, it is difficult to control the car, which is easy to cause accidents and casualties of drivers and passengers. Nowadays, new energy vehicles emerge one after another. This kind of vehicle is purely electric and does not need a reducer. However, the traditional vehicle must have a reducer to control the deceleration of the vehicle, otherwise the traditional vehicle cannot run.
What is the function of car retarder?
At present, among the mechanisms used to transmit energy and motion, reducers are widely used, which can be seen in almost all types of mechanical transmission systems. The main function of automobile main reducer is to reduce speed and increase torque. We know that the output power of the engine is certain. According to the calculation formula of power w=m*V, when the main reducer reduces the transmission speed, it can obtain a relatively high output torque, thus obtaining a larger driving force.
Electric vehicle retarder, what is the function of retarder-function
The function of the reducer is to match the transmission speed and torque between the main engine and the working machine or actuator. The reducer is a relatively precise machine. Its purpose is to reduce the speed and increase the torque. According to the different transmission phases, it can be divided into single-stage reducer and multi-stage reducer. According to the shape of dental instruments, it can be divided into cylindrical reducer, bevel gear reducer and gear cylindrical reducer; According to the arrangement transmission form, it can be divided into expansion type, split type and same input tree type reducer.
According to the number of gear pairs participating in the reducer, it can be divided into single-stage main reducer and two-stage main reducer. Except some medium and heavy vehicles need two-stage main reducer with large transmission ratio, most vehicles are mini-vehicles, and light and medium-sized vehicles basically use one main single-stage reducer. The above is what Xiong Bian introduced to you: "What is the function of the main reducer? The differential operator tells you that there is a speed difference between the inner wheel and the outer wheel. This is the essence. Let me give you a brief introduction of the reducer you mentioned. According to your description, it should be the main reducer. What others tell you is right. Taking a typical rear-drive vehicle as an example, the power transmission path is engine-flywheel-clutch-transmission tree-final engine-differential shaft-hub shaft.
The above is Bian Xiao's detailed explanation of the problem. I hope it will help you. You can leave me a message in the comments section if you have any questions. If there is anything wrong, you can also interact with me more. If you like the author, you can also follow me. Your praise is the greatest help to me. Thank you. .
What is the function of the reducer?
What is a reducer?
Retarder is a kind of power transmission mechanism, which uses the speed converter of gear to slow down the number of motor revolutions to the desired number, thus obtaining greater torque.
■ The role of the reducer
1) Reduce the speed and increase the output torque. The torque output ratio is multiplied by the reduction ratio according to the motor output, but be careful not to exceed the rated torque of the reducer.
2) Speed also reduces the inertia of the load, and the reduction of inertia is the square of the reduction rate. You can see that GM has an inertia value.
■ Type of reducer
General reducers include helical gear reducer, planetary gear reducer, cycloidal pin wheel reducer, worm gear reducer, planetary friction mechanical continuously variable transmission and so on.
■ Types of common reducers
1) reducer is mainly characterized by reverse self-locking function, which can have a large reduction ratio. The input shaft and the output shaft are not on the same axis or plane. However, it is generally large in size and low in transmission efficiency and accuracy.
2) Harmonic drive of harmonic reducer uses the controllable elastic deformation of flexible components to transmit motion and power, which is small in size and high in accuracy, but it has the disadvantages of limited life, impact resistance and poor rigidity compared with metal parts. The input speed cannot be too high.
3) The planetary reducer has compact structure, small return clearance, high precision, long service life and large rated output torque. But the price is a little more expensive.
Retarder:
In short, the rated power of a general machine will not change after it is designed and manufactured. At this time, the greater the speed, the smaller the torque; The lower the speed, the greater the torque.
Sometimes, in order to obtain greater torque, we need to use a reducer to reduce the speed of the "prime mover", such as an engine, so as to obtain greater torque. It is a truth that cars should slow down when going uphill.
Common reducers: gear reducer, worm gear reducer, etc.
Most transmissions mainly reduce the speed of the prime mover, so they are generally called reducers.
Function of reducer
The reducer is an independent component consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is often used as a deceleration transmission device between the prime mover and the working machine. It plays a role in matching the rotational speed and transmitting torque between the prime mover and the working machine or actuator, and is widely used in modern machinery.
The main feature of worm gear reducer is that it has reverse self-locking function and can have a large reduction ratio. The input shaft and the output shaft are not on the same axis or plane. However, it is generally large in size and low in transmission efficiency and accuracy. Harmonic drive of harmonic reducer uses the controllable elastic deformation of flexible components to transmit motion and power, which is small in size and high in accuracy, but it has the disadvantages of limited life, impact resistance and poor rigidity compared with metal parts. The input speed cannot be too high. The invention has the advantages of compact structure, small return clearance, high precision, long service life and large rated output torque. But the price is a little more expensive. Gear reducer has the characteristics of small volume and large torque transmission. The gear reducer is designed and manufactured on the basis of modular combination system, with a variety of motor combinations, installation forms and structural schemes, and the transmission ratio is finely graded to meet different working conditions and realize electromechanical integration. Gear reducer has high transmission efficiency, low energy consumption and superior performance. Cycloidal pin-wheel reducer is a transmission model based on the principle of cycloidal pin-tooth meshing planetary transmission. It is an ideal transmission device with many advantages and wide application, and can run in both forward and reverse directions.
function
1, reduce the speed and increase the output torque. The torque output ratio is multiplied by the reduction ratio according to the motor output, but care should be taken not to exceed the rated torque of the reducer;
2. Deceleration reduces the inertia of the load at the same time, and the reduction of inertia is the square of the deceleration ratio.
Main functions of reducer
The existence of the reducer has two functions, the first is to change the direction of power transmission, and the second is to provide a common transmission ratio for all gears as an extension of transmission. The main reducer is a mechanism that can change the torque and speed in the drive axle. The basic function is to increase the torque from the transmission or general transmission, while reducing the speed and changing the transmission direction of the torque.
What is the reducer for?
The main functions of the reducer are:
1) Reduce the speed and increase the output torque. The torque output ratio is multiplied by the reduction ratio according to the motor output, but be careful not to exceed the rated torque of the reducer.
2) Deceleration also reduces the inertia of the load, and the reduction of inertia is the square of the deceleration ratio. You can see that GM has an inertia value.
Introduction.
Reducer is a kind of precise machine, which plays the role of matching speed and transmitting torque between prime mover and working machine or executing mechanism. The purpose of using it is to reduce the speed and increase the torque. It has many kinds and models, and different kinds have different uses. There are many types of reducers, which can be divided into gear reducers, worm reducers and planetary gear reducers according to transmission types.
According to the different transmission stages, it can be divided into single-stage and multi-stage reducers; According to the gear shape, it can be divided into cylindrical gear reducer, bevel gear reducer and cone-cylindrical gear reducer; According to the arrangement of transmission, it can be divided into expansion reducer, shunt reducer and coaxial reducer.