What does a car axle housing do? What are the types?

The axle housing is the base body for installing the final reducer, differential, half shaft and wheel assembly, and its main role is to support and protect the final reducer, differential and half shaft.

Generally speaking, the ordinary non-disconnected drive axle housing is a rigid hollow beam supported on the left and right drive wheels, and the transmission parts such as the final reducer, differential and half shaft are installed in it, and the axle housing is connected to the frame or carriage through longitudinal leaf springs. It is an important part of the drive axle and one of the main components of the driving system. The drive axle housing should have sufficient strength and rigidity, small mass, and be convenient for the disassembly and adjustment of the final reducer.

The drive axle housing can be divided into three categories: integral axle housing, separable axle housing and combined axle housing.

Key Functions of the Axle Housing:

1. Support the mass of the car, and bear the road reaction force and reaction moment transmitted by the wheels, and transmit it to the frame (or body) through the suspension;

2. The axle housing is the supporting and inclusive parts of the final reducer, differential, half shaft and other components;

3. The shell is equipped with lubricating oil, which can lubricate gears and bearings;

4. The closed shell can prevent dirty things from invading and damaging the working environment of the components in the shell;

5. The axle housing also has the effect of fixing the axial relative position of the left and right drive wheels.

There are two types of rear axles in automobiles: steering and drive. It has not only the basic components of the general drive axle, but also the kingpin unique to the steering axle. The steering of trucks is generally front-axle steering and rear-axle drive.

On the two-axle truck, if the front axle is not the drive axle, then the rear axle of the car is the drive axle, at this time, in addition to the bearing role, it also plays the role of driving and deceleration and differential, if it is four-wheel drive, it is generally equipped with a transfer case in front of the rear axle.

The rear axle of the car is located at the end of the drivetrain of the car as the drive axle and consists of the final reducer, half shaft and the driving rear axle housing.

The final reducer is generally used to change the transmission direction, reduce the speed, increase the torque, and ensure that the car has enough driving force and appropriate speed. There are many types of main reducers for the rear axle of automobiles, including single-stage, double-stage, wheel reducer, etc.

Extended Materials. If the front axle is not a drive axle, then the rear axle is a drive axle, which in addition to the bearing effect also plays the role of driving and deceleration as well as differential speed, and if it is four-wheel drive, it is also equipped with a transfer case in front of the rear axle.

The front axle and rear axle refer to the front and rear axles, the front axle includes shock springs, steering gears, etc., and the rear axle includes drive shafts, transmission gears, etc. The rear of the multi-axle truck is also divided into a drive rear axle and a non-drive rear axle, and the non-drive rear axle is not connected by a transmission shaft, which does not belong to the part of the driving wheel, and is generally a heavy truck with more than 3 axles.

Depending on the suspension of the bridge, it is divided into integral and disconnected. The integral bridge is equipped with non-independent suspension, leaf spring suspension, and the disconnected type is equipped with independent suspension, such as MacPherson suspension.

As for the big drum in the center of the rear axle, it is only when the rear axle is a drive axle, because the reduction gear and differential mechanism must be put inside, so there must be a big drum, and the rear axle is not a follower axle.

According to the different roles of the axle, the axle can be divided into drive axle, steering axle, support axle, and steering drive axle.

The function of the automobile axle housing is to support and protect the final reducer, differential.

and half shaft, etc., the bridge housing can be divided into two types in terms of structure: integral type and segmented type.

Function: 1) Support and protect reducer, differential, half shaft, etc.

2) Fixed drive wheels.

3) Supporting the frame and each assembly on it.

4) Bear and transmit the road reaction force and torque from the wheels.

Computer hardware issues. According to your description, the role of the axle housing is to support and protect the final drive, differential and half shaft, etc. At the same time, it also has the following functions:

1. Bear the mass of the car together with the front axle.

2. The axial relative position of the left and right driving wheels is fixed.

3. When the car is driving, it bears the anisotropic reaction force, bending moment and braking torque transmitted by the driving wheels, and transmits it to the frame through the suspension.

Automobile axles (also known as axles) are connected to the frame (or load-bearing body) by a suspension, and wheels are mounted at both ends. Purpose: It is the suspension, not the axle, that transmits the force and moment between the frame and the axle (wheels).

The role of the axle is to bear the load of the car and maintain the normal driving of the car on the road.

The axle can be monolithic, like a giant barbell, with both ends supporting the body through a suspension system, so the monolithic axle is usually mated with a non-independent suspension; The axle can also be disconnected, like two umbrellas inserted on both sides of the body, and then each of them supports the body through the suspension system, so the disconnected axle is used with independent suspension.

Depending on the drive mode, axles are also divided into four types: steering axles, drive axles, steering drive axles, and support axles. Among them, the steering axle and the support axle belong to the driven axle. Most cars have front-rear drive (FR), so the front axle acts as a steering axle and the rear axle as a drive axle; In front-drive (FF) cars, the front axle becomes the steering axle and the rear axle acts as a support axle.

Axles. The structure of the steering axle is essentially the same, consisting of two steering knuckles and a beam. If the beam is compared to the body, the steering knuckle is his head swaying from side to side, the neck is what we often call the kingpin, and the wheels are mounted on the knuckle, as if he has a straw hat on his head.

However, when driving, the straw hat turns, but the head does not turn, and the middle is separated by a bearing, and the head only shakes from side to side. Neck - The kingpin is the axis of rotation of the wheel, the axis of this axis is not perpendicular to the ground, and the wheel itself is not vertical, which we will discuss in the section on wheel alignment.

The difference between a steering drive axle and a steering axle is that everything is hollow, the beam becomes the axle housing, and the steering knuckle becomes the knuckle housing because there is an extra drive shaft inside. The drive shaft is split in two by a differential in the middle of the axle housing, turning it into two halves. The two straw hats are not simply attached to the head, but are also directly connected to the two half-shafts inside.

The half-shaft also has one more joint in the position of the "neck" - the universal joint, so the half-shaft also becomes two parts, the inner half-shaft and the outer half-shaft.

According to the structural type of suspension, the axle can be divided into two types: disconnected and integral. The disconnecting axle is a movable joint structure, which is used in conjunction with an independent suspension; In the middle part of a monolithic axle is a rigid solid or hollow beam. It is often equipped with non-independent suspension.

According to the different movement modes of the wheels, the axle can be divided into four types: steering axle, drive axle, steering drive axle and support axle. Among them, the steering bridge and the supporting bridge belong to the driven bridge. Generally, the front axle of the car is mostly a steering axle, while the rear axle or the middle and rear axles are mostly drive axles; The front axle of off-road vehicles or most sedans is both a steering axle and a drive axle, so it is called a steering drive axle; The middle (or rear axle) of some single-axle driven three-axle cars (6 2) is a drive axle, and the rear (or middle axle) is a support axle.

The function of the automobile axle is: to bear the load of the vehicle, to maintain the normal driving of the vehicle on the road, at both ends of the axle, the tire system of the vehicle is installed, the braking system of the vehicle is installed, the axle type is the steering axle, the drive axle, the steering drive axle and the support axle are four, and different driving modes use different axles.

Which SUV models are with axles.

Hard-core SUV or SUV models with non-load-bearing bodies, all with axles, axles can bring better passability, can have a greater carrying weight, so that hard-core SUVs must be equipped with a lot of abnormal road surfaces, and their representative models are Harvard H9 models, Toyota Prado models, Toyota Land Cruiser models.

The disadvantage of SUVs using axles.

That is, in terms of the ride comfort of the vehicle, the use of the overall axle SUV model, the comfort can not be compared with the strong level SUV, that is, when riding, the comfort is not very good, after all, the axle type is equipped with most of the trucks, and it is used on the hard SUV, which is nothing more than to increase the passability of the vehicle.

The role of the rear axle of the car is to carry the load. In addition to the load-bearing function, it also plays the role of driving and deceleration as well as differential speed, and in the case of four-wheel drive, it is generally equipped with a transfer case in front of the rear axle.

Routine maintenance and upkeep of axles.

1. Before the vehicle is running, check whether the external connecting bolts of the axle are loose, whether the axle is leaking, whether the wheel hub and reducer assembly are abnormal, etc.

2. Mandatory maintenance of the axle.

A: Mandatory maintenance is carried out between 3000 and 5000km depending on the different working conditions.

b: The first maintenance content includes: changing lubricating oil, gear oil, checking the front axle toe, adjusting the brake clearance, etc., checking the fasteners, etc.

3. Regular maintenance of the axle.

A: Regular maintenance is carried out every 10,000km after the first maintenance.

B: The content of regular maintenance includes: replacing the lubricating oil, tightening the fasteners, checking the toe, checking the wear degree of the brake friction pads, and the wear limit should be replaced in time and adjusting the brake clearance, checking the reducer assembly, and whether the gap between the main and driven gears is too large, and whether the gear oil exceeds the use efficiency

Bear the load of the vehicle, maintain the normal driving of the vehicle on the road, at both ends of the axle, respectively install the tire system of the vehicle, the braking system of the vehicle, the axle type is the steering axle, the drive axle, the steering drive axle and the support axle are four, and different driving modes use different axles.

The function of the axle: it is connected to the frame (or load-bearing body) through the suspension, and the wheels are installed at both ends to transmit the forces and moments in all directions between the frame (or load-bearing body) and the wheels.

The functions of the drive axle are: 1. Reduce speed and increase torque; 2. Change the direction of power transmission and transmit power; 3. Make the left and right wheels rotate at different speeds to meet the steering requirements; 4. Carry the gravity of the frame and the body. The drive axle is composed of a final reducer, a differential, a half shaft, and an axle housing.

The function of the drive axle is: 1. The engine torque transmitted by the universal transmission device is transmitted to the drive wheel through the main reducer, differential and half shaft to realize the reduction of speed and increase the torque;2. Change the transmission direction of torque through the bevel gear of the final reducer;3. Achieve differential speed to ensure that the inner and outer wheels are steered at different speeds4. Realize the bearing and transmission torque.

It is divided into two categories:

1) Integral axle housing: It is divided into integral casting, middle casting pressing steel pipe and steel plate stamping and welding

2) Segmented axle housing: The axle housing is divided into two sections, so that the slapstick bolt and macro cover are integrated.

The function of the drive axle housing is to support and protect the final reducer, differential and half shaft, etc. At the same time, it is the main component of the driving system, and it also has the following functions.

1. Bear the mass of the car together with the front axle.

2. The axial relative position of the left and right driving wheels is fixed.

3. When the car is driving, it bears the anisotropic reaction force, bending moment and braking torque transmitted by the driving wheels, and transmits it to the frame through the suspension.

Listen to what others have to say:

The main role of the automobile axle housing:

1. Support the mass of the car, and bear the road reaction force and reaction moment transmitted by the wheels, and transmit it to the frame (or body) through the suspension;

2. The axle housing is the supporting and inclusive parts of the final reducer, differential, half shaft and other components;

3. The shell is equipped with lubricating oil, which can lubricate gears and bearings;

4. The closed shell can prevent dirty things from invading and damaging the working environment of the components in the shell;

5. The axle housing also has the effect of fixing the axial relative position of the left and right drive wheels.

The role of the car axle housing:

Automobile axle housing is the general component of automobile drive axle, the drive axle is at the end of the power transmission train, and its maneuvering function is to increase the torque transmitted by the transmission shaft or transmission, and the power is reasonably distributed to the left and right drive wheels, and the axle housing is an important bearing part and force transmission part on the automobile. The axle housing of the drive axle not only supports the weight of the car and transmits the load to the wheels, but also bears the traction, braking force, lateral force, vertical force and reaction moment transmitted by the drive wheels, and transmits it to the frame or body through the suspension.

Therefore, it is obvious that the role of the axle housing is to support and protect the components such as the final reducer, differential and half shaft, and at the same time to fix the axial relative position of the left and right drive wheels, and support the mass of the frame and the assembly above the frame together with the front axleWhen the car is moving, it is subjected to the reaction force and moment of the road surface transmitted by the wheels and transmitted to the frame through the suspension.

In the process of driving, due to the different road conditions, the axle casing is affected by the impact load generated between the wheels and the ground, which may cause the axle casing to deform or break. Therefore, the drive axle housing should have sufficient strength, stiffness and good dynamic characteristics, etc., and the reasonable design and manufacture of the drive axle housing is an important measure to improve the driving stability of the car, and the rear axle housing of the automobile is widely used in various vehicles.

Nowadays, the rear axle housing fixture is also widely used in the processing of the rear axle housing of trucks, the rear axle housing plays the role of protection and support, and its main processing surface is the outer circle of the end face, the flange plane, the spring seat plane, and the inner hole.