Trailer is one of the vehicles often used in transportation, which plays a vital role in the field of cargo transportation. However, as a heavy-duty means of transportation, there are many problems in the practical application of trailers. Axle fire is a very common one. Open the search engine, there are many cases of "trailer axle fire".

Once the trailer axle catches fire, it often leads to tire combustion, and then the tarpaulin and goods on the trailer will also be ignited, which will eventually lead to the fire of the whole vehicle. If the carriage carries inflammable and explosive goods, the consequences are unimaginable.

In general, the main causes of trailer axle fire are as follows:

1. Camshaft clearance is too large.

If the clearance between the camshaft and the bearing hole is too large, it is easy to cause abnormal contact friction between the brake shoe and the brake drum under non braking conditions. This friction for a long time will produce a lot of heat energy in the brake drum, and finally ignite the tire and cause a fire accident.

Therefore, the vehicle's braking system must be maintained frequently, especially for some second-hand vehicles. It must be checked after buying back. If it is found that the camshaft is seriously worn or the lubricating grease in the bushing is insufficient, it needs to be replaced in time.

In addition, it is reminded that the left and right sides of the camshaft cannot be used in common. When replacing, it must be confirmed whether there is a wrong installation. Once installed incorrectly, it will lead to brake failure, which is also very dangerous.

2. The hub maintenance is not timely.

The lack of timely maintenance of the trailer hub is also one of the reasons for the axle fire. The oil in the hub is reduced or deteriorated, and the lubrication conditions become worse, which is easy to lead to the temperature rise of the hub and the oil fire of the hub, and finally lead to the fire of the trailer and affect the whole vehicle.

However, it should be noted that the hub grease should not be added too much, otherwise the temperature may be too high, and the technical requirements must be strictly followed.

3. Poor bearing lubrication.

When the bearing grease is exhausted and the lubrication effect becomes poor, excessive friction will lead to its temperature rise, displacement of bearing cage, wear of bearing race and decomposition of bearing rollers. When the temperature rises high enough, it is easy to ignite residual grease, brake pad phenols and tires. Generally, the ignition point of compliant trailer tires is 300 degrees. Once the temperature exceeds 300 degrees, the tires begin to burn, and then it will affect the trailer and cargo.

4. Tire problem.

If the cause of the braking system can be eliminated, the cause of the tire needs to be considered. When the tire pressure of the trailer is insufficient, the friction surface between the tire and the ground will increase, which will also produce high heat. In addition, in case of individual tire burst, it may not be easy for the owner to find the problem due to other tire support loads. If the tire is still rotating on the rim after the tire burst, or is stuck and towed, it will cause overheating combustion, causing Trailer fire or other traffic accidents.

5. Brake for a long time.

On a long downhill road, it is also easy to generate heat between the brake shoe and the brake drum by stepping on the brake for a long time. If a reliable cooling scheme is not provided at this time, it is also easy to cause the axle to catch fire.

It can be seen that the braking system of the trailer is a very complex structure. If there is a problem in any small link, it may lead to irreparable huge losses. Therefore, all car owners must do the corresponding maintenance in daily use to prevent trouble.

Now there are many kinds of trailer axles on the market. When purchasing, car owners must not be greedy for cheap and use those "three noes" products. After all, only the quality of the axle itself has passed the customs, and the subsequent use can be more assured. Darong axle, an axle with more than 20 years of production experience, is recommended to you. Whether it is disc type, drum type, low flat plate, three wire six axle or special axle, it can also be customized. Darong axle has passed ISO9001 quality management system certification, which is more reliable and worry-free. The key price is also more affordable, which can enable the majority of car owners to spend less money on higher quality axles.

Finally, give the car owners the car safety knowledge shared by the old drivers:

1. Timely maintain the vehicle, especially the wheel hub and brake. At the same time, strengthen the daily inspection of the vehicle, check whether the vehicle circuit is aging or damaged, and replace and repair it in time.

2. Check whether there is oil leakage in each oil circuit, whether there is oil leakage in valve cover, crankshaft ventilation box and other parts, clean the oil stains on the engine and repair the oil leakage.

3. The fire extinguisher shall be equipped in the vehicle, and the operation mode of the fire extinguisher shall be mastered. The pressure pointer of the fire extinguisher shall be checked daily. If the pressure is too low, it shall be replaced.

4. Put an end to fatigue driving. It can be said that fatigue driving is an old-fashioned problem. Its harm is great. When driving a vehicle, you must not drive fatigue.

5. Remember to buy auto ignition insurance when you buy insurance for your vehicle. If the vehicle ignites, this auto ignition insurance can reduce the loss.

6. Finally, when the trailer is on fire, save people first and then things. Do not be obsessed with property.