How to deal with abnormal tire wear of semi trailer?

In the various components of the vehicle system, the tire is the only direct contact with the road parts, wear is inevitable. Semi-trailer as the logistics transportation industry commonly used heavy-duty transportation models, the use of the tire conditions are more complex, wear accounts for almost 30% of the total number of semi-trailers, can be said to be very common.

There are many reasons for the trailer to "eat the tire". In summary, there are mainly two aspects:

First, the vehicle design or manufacturing is unreasonable, such as how the parallel symmetry of the vehicle girder, whether the vehicle suspension installation is corresponding, whether the axle quality is passed, starting debugging is qualified, for this kind of quality problems, the owner is generally a little powerless;

Another reason for the trailer "eat tire" is that the owner's usual use and maintenance habits have problems, such as use or maintenance is not standard, this kind of problem if the owner can do in strict accordance with the standard, generally can well solve the "eat tire" problem.

How to use and maintain, can prolong the service life of tires?

1. Inflate the tires according to the prescribed standards.

One of the main causes of abnormal tire wear is not to inflate the tire according to the prescribed standard. According to relevant experimental data, when the tire inflation pressure is 20% less than the standard pressure, the average life of the tire is reduced by about 15%. Inflation pressure drop 45%, tire average life reduced about 40%.

When the tire pressure is below the standard, although the contact area with the road can be increased and the average pressure of the tire can be reduced, the "bridge effect" is generated due to the bending of the tire surface, so that the pressure is not evenly distributed on the contact area, resulting in abnormal wear.

Correspondingly, when the tire pressure is higher than the standard, the tire deformation and the contact area with the road becomes smaller, so the earth pressure increases, so that the middle tread wear is accelerated.

2. Carry out regular tire transposition.

Pay attention to the maintenance of the tire, often carry out the rotation of the tire, can make the tire wear more uniform, can effectively extend the life of the tire.

3. Pay attention to the inspection and fastening of the hub system.

Pay attention to check the tightening of hub screws, hub bearing loosening, leaf spring riding bolt is not tightened according to regulations, suspension loosening and so on will cause the tire to swing around in the driving, resulting in abnormal tire wear.

4, do a good job of braking system adjustment.

Abnormal braking system of trailer, such as brake air path is not smooth, brake drag, ABS is not adjusted well, and so on, also easy to cause abnormal tire wear.

5, in strict accordance with the load of the vehicle.

There is no need to say more about the degree of damage to the tire overload, according to the relevant experimental data, the vehicle load increases by 30%, and the average life of the tire decreases by about 60%. Therefore, in order to prolong the service life of tires, of course, but also for driving safety, do not overload.

6. Pay attention to reasonable distribution of goods.

In the process of distribution, if the loading is not reasonable, it will also cause "eating tire", especially retail logistics, different goods distribution together, we must pay attention to the balance of the force of the tire.

7. Change bad driving habits.

The driver's bad driving habits are also one of the main reasons for abnormal tire wear, such as speeding, emergency braking, sharp turns, quick start, etc., will have a serious impact on the life of the tire.

In the actual use of the process, tire wear can also be subdivided into many situations, different "eating" performance, the reasons are not the same, then we will count those common "eating" phenomenon and the corresponding solution:

1, performance: a single tire tread on both sides of abnormal wear.

Solution: Check if the tire pressure is too low or if there is a problem with the tire quality.

2. Performance: abnormal wear in the middle of single tire tread.

Solution: Check whether the tire quality problem or whether the tire pressure is too high.

3. Performance: Steering axle tire tread is "S" type wear.

Solution: Check whether the front bundle, steel ring, steering ball head and direction machine are loose.

4, performance: rear tire tread is "S" type abnormal wear.

Solution: Check whether the steel ring, hub screws and shaft head are loose.

5, performance: tire tread at a certain abnormal wear.

Solution: Check whether the brake hub is out of round.

6, performance: the two tires on the coaxial, the inside edge abnormal wear.

Solution: Check the front bundle and knuckle kingpin for problems.

7, performance: coaxial tire, abnormal wear outside.

Solution: Check the front bundle size.

8, performance: steering axle unilateral tire inside abnormal wear.

Solution: Check the knuckle kingpin.

9, performance: steering axle unilateral tire outside abnormal wear.

Solution: Check whether the front axle and the knuckle kingpin are deformed.

10. Performance: The inside edge of the rear axle tire of the vehicle is abnormally worn.

Solution: Check whether the hub bearing clearance is too large, whether the hub and the bearing housing are cylindrical, and whether the half-shaft conduit is bent upward.

11. Performance: Abnormal wear outside the rear axle tire.

Solution: Check whether the steel plate center screw, steel plate pin bushing and steel plate lifting lug are loose.

12. Performance: Abnormal wear outside the rear axle tire and inside the rear axle tire.

Solution: Check whether the steel plate center screw, steel plate pin bushing and steel plate lifting lug are loose.

13. Performance: The inside of a single tire on the steering axle of a double-front axle vehicle is abnormally worn.

Solution: Check whether the tire axle steering knuckle kingpin, hub bearing and ball head are loose, and whether the front bundle is too large.

14, performance: double front axle vehicle steering axle on the outside of a single tire abnormal wear.

Solution: Check whether the front bundle of eating tire bridge is too small, and whether the steering knuckle kingpin and axle are deformed.

15. Performance: Abnormal wear of the inside and outside of one axle tire on the steering axle of two front axle vehicles.

Solution: Check the steering synchronization and the axle suspension positioning.

16, performance: double front axle vehicle steering axle coaxial tires, one side of the inside, one side of the outside abnormal wear.

Solution: Check the steering synchronization and the axle suspension positioning.

17. Performance: Abnormal wear on the outside of the tires on the two axles of the double front axle vehicle.

Solution: Check the knuckle kingpin.

18. Performance: The inside edge of the tire on the two axles of the double-front axle vehicle is abnormally worn.

Solution: Check whether the front axle and the knuckle kingpin are deformed.

Although the problem of "eating tire" of semi-trailer is common, it is not safe to avoid. As long as it is used and maintained in accordance with the regulations, it can alleviate the problem. In addition, choosing the right axle is also a very important factor to avoid "eating the tire", because the tire is installed on the steel ring, the steel ring is installed on the hub, the hub is an important part of the axle. If the owner chooses the trailer axle strength, accuracy is not up to standard, it will cause the axle deformation after leaving the factory to increase, directly lead to the vehicle "eat tire".

Choosing DARO trailer axle can fully avoid such problems. In the production process of DARO trailer axle, in addition to setting processes such as hot spinning rolling, cold pushing square, quenching, tempering and sandblasting that can fully stimulate the comprehensive mechanical properties of steel and improve the strength and toughness of the axle, multi-point straightening, CNC machine tool processing, shaft head precision grinding, medium frequency induction processing and other processes are also added to ensure the processing size and accuracy. Finally, the qualified shaft body and trailer bearings, wheels and other assembly, and passed the finished product quality inspection and performance test, reliable quality, affordable, cost-effective, greatly help the owner to achieve energy saving, saving the cost of comprehensive vehicle.