In each component system of the vehicle, the tire is the only part in direct contact with the road, and wear is inevitable. As a heavy-duty transport model commonly used in the logistics and transportation industry, the use conditions of semi-trailer tires are more complex, and the wear proportion almost reaches about 30% of the total number of semi-trailer, which can be said to be very common.

There are many reasons for "tire eating" of trailers. In summary, there are mainly two aspects:

First, the vehicle design or manufacture is unreasonable, such as the parallelism and symmetry of the vehicle girder, whether the vehicle suspension installation is corresponding, whether the axle quality is qualified, whether the departure commissioning is qualified, etc. for this kind of quality problems, the owner is generally a little helpless;

Another reason for the trailer "tire eating" is that there are problems in the owner's usual use and maintenance habits, such as non-standard use or maintenance. If the owner can do this kind of problem in strict accordance with the standards, the problem of "tire eating" can generally be well solved.

How to use and maintain the tire to prolong its service life?

1. Inflate the tire according to the specified standard.

Failure to inflate the tire according to the specified standard is one of the main reasons for abnormal tire wear. According to the relevant experimental data, when the tire inflation pressure is 20% less than the standard pressure, the average tire life is reduced by about 15%; The inflation pressure is reduced by 45% and the average tire life is reduced by about 40%.

When the tire pressure is lower than the standard, although it can increase the contact area with the road and reduce the average pressure of the tire, the "bridge effect" is produced due to the bending of the tire surface, which makes the pressure unevenly distributed in the contact area and leads to abnormal wear.

Accordingly, when the tire pressure is higher than the standard, because the tire deformation and its contact area with the road surface become smaller, the grounding pressure increases and the wear in the middle of the tread is accelerated.

2. Regularly rotate the tires.

Pay attention to the maintenance of tires and regularly rotate tires, which can make the tire wear more uniform and effectively prolong the service life of tires.

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

Pay attention to check the fastening of hub screws. Loose hub bearings, non tightening of leaf spring riding bolts as required, loose suspension, etc. will cause the tire to swing left and right during driving, resulting in abnormal wear of the tire.

4. Adjust the braking system.

The braking system of the trailer is abnormal, such as blocked braking air path, braking drag, and the ABS is not adjusted well, which is also easy to cause abnormal tire wear.

5. Use in strict accordance with the specified load of the vehicle.

Needless to say, 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.

In the process of distribution, if the loading is unreasonable, it will also cause "tire eating", especially for logistics retail investors. When different goods are distributed together, we must pay attention to the stress balance of tires.

7. Change bad driving habits.

The bad driving habits of drivers are also one of the main reasons for abnormal tire wear. For example, speeding, emergency braking, sharp turning, sharp start and so on will have a serious impact on the service life of tires.

In the process of actual use, tire wear can also be divided into many situations. Different "tire eating" performances have different reasons. Next, let's count the common "tire eating" phenomena and their corresponding solutions:

1. Abnormal tread wear on both sides of the tire.

Solution: check whether the tire pressure is too low or whether there is a problem with the tire quality.

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

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

3. Performance: the tread of steering axle tire is worn in "s" shape.

Solution: check whether the toe in, steel ring, steering ball joint and steering gear are loose.

4. Performance: the tread of the rear wheel tire shows "s" type abnormal wear.

Solution: check whether the steel ring, hub screw and shaft head are loose.

5. Performance: abnormal wear at one place of tire tread.

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

6. Performance: the inner edges of the two tires on the same axis are abnormally worn.

Solution: check the toe in and steering knuckle kingpin for problems.

7. Performance: the tire on the coaxial line is abnormally worn outside.

Solution: check toe in size.

8. Performance: abnormal wear on the inner edge of one side tire of steering axle.

Solution: check the steering knuckle kingpin.

9. Performance: abnormal wear on the outer edge of one side tire of steering axle.

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

10. Performance: the inner edge of the tire on one side of the rear axle of the vehicle is abnormally worn.

Solution: check whether the clearance between the hub bearing is too large, whether the hub and the bearing shell are in the outer circle, and whether the half shaft guide tube is bent upward and deformed.

11. Performance: abnormal wear on the outside of the tire on one side of the rear axle of the vehicle.

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

12. Performance: abnormal wear on the outer edge of the tire on one side of the rear axle and the inner edge of the tire on one side of the vehicle.

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

13. Performance: abnormal wear on the inner side of a single tire on the steering axle of dual front axle vehicles.

Solution: check whether the steering knuckle kingpin, hub bearing and ball joint of tire eating bridge are loose and whether the toe in is too large.

14. Performance: abnormal wear on the outside of a single tire on the steering axle of dual front axle vehicles.

Solution: check whether the toe in of tire eating axle is too small, and whether the steering knuckle kingpin and axle are deformed.

15. Performance: abnormal wear on the inner side of the first axle tire and the outer side of the first axle tire on the steering axle of dual front axle vehicles.

Solution: check the steering synchronization and the suspension positioning of the axle.

16. Performance: the coaxial tires on the steering axle of dual front axle vehicles are abnormally worn on one side inside and one side outside.

Solution: check the steering synchronization and the suspension positioning of the axle.

17. Performance: the outer edges of tires on both axles of double front axle vehicles are abnormally worn.

Solution: check the steering knuckle kingpin.

18. Performance: the inner edges of tires on both axles of double front axle vehicles are abnormally worn.

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

Although the problem of "tire eating" of semi-trailer is common, it is not inevitable. As long as it is used and maintained in accordance with the specifications, it can alleviate this 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 wheel hub, and the wheel hub is an important part of the axle. If the strength and accuracy of the axle selected by the owner do not meet the standard, it will increase the deformation of the axle after leaving the factory, which will directly lead to the "tire eating" of the vehicle.

Choosing Darong axle can fully avoid such problems. In the production process of Darong axle, in addition to the processes such as hot rotary rolling, cold square pushing, quenching, tempering and sand blasting, which can fully stimulate the comprehensive mechanical properties of steel and improve the strength and toughness of axle, multi-point straightening, NC machine tool processing, shaft head precision grinding and medium frequency induction processing are also added to ensure the processing size and accuracy, Finally, the tested axle body is assembled with the special bearings and wheels of the trailer, and has passed the finished product quality inspection and performance test. It has reliable quality, affordable price and high cost performance, which greatly helps the owner to save energy and consumption and save the cost of comprehensive vehicles.