Analysis of problems in tire use

The quality of tire usage is directly related to the length of driving range, whether the locomotive is properly operated and whether the operation is correct. The length of the tire's service life is certainly related to the quality of the tire, but it is also inseparable from the correct use and maintenance of the tire. Therefore, the following issues are considered in the use of the tire:

1. Do not use tires for specified purposes. For example, high pattern tires used in paddy field operations cannot be used as road tires instead of pattern tires. Otherwise, the vibration of locomotives will not only be added during transportation, but also the life of the tires will be reduced by 20-35%. In turn, tractors are operated in the field. If the drive wheels do not use high-profile tires, the tire life will be greatly shortened due to the high slip rate.

2, not in accordance with the rules and regulations of inner and outer tires and lining belts. If the size of the inner tube and the strap used does not match the size of the tire, or if a new or repaired casing is used, install the used inner tube and the strap; or install a new inner tube in the broken tire; or if the width of the section is different, Used in conjunction with the tire, this will affect the life of the tire.

3, tire pressure is too high or too low. This is one of the most common causes of significant reduction in tire life. When the farmer is idle, the tractors are engaged in short-distance transportation. They do not have spare tires on the vehicle. If the operator finds that the air pressure is insufficient on the way, it usually arrives at the destination before it replenishment. Some robots do not consider the difference between the old and new tires and the difference in air temperature in different seasons, causing explosions due to high tire pressure.

4, in violation of tire disassembly regulations. Since the operator does not operate in accordance with the tire assembly and disassembly regulations, 10-15% of the damage is caused by the outer edge of the tire, and 8-15% of the inner tube is damaged. This will shorten the time for the tire to 12-16% more than normal use.

5. The vehicle is overloaded. Radial overload of the tire, which is one of the main reasons for the early retirement of the tire. According to the tire scientific research data, if the load is less than 3% of the allowable value, the tire life can be doubled; overloading 40%, the tire life can be shortened by 50%.

6. Exceeding the allowable speed of the tire. Assume that the 60-kilometer-hour speed is the standard life of the tire. If the hourly speed is increased to 90 kilometers, the service life of the tire will be reduced by 50%. If the vehicle is used for a long time, it will cause tire carcass delamination, tread and carcass stripping. Layers and tires are prone to thermal breakage.

7, the maintenance of the tires is not repaired. Some individual transport specialists only pay attention to the time to catch money, and there are serious wounds on the tires that are not repaired in time. Most tires can be replaced with 2 to 3 treads, but when worn to the limit, they cannot be repaired even once.

8, from time to time exchange position. Some motor vehicle drivers did not perform cross-to-back transposition before and after the new vehicle was used for a long period of time. If you use a snow chain during operation, you should also note that the left and right elasticity is consistent. The slippery road section should be dismantled immediately.

9, before and after the bridge on the wheel of the failure. If the front axle, rear axle, axle, suspension axle and other deformation and wear, have a great impact on the life of the tire, these failures almost make the normal life of the tire shortened by half, so it is necessary to inspect and deal with in time.

10. The distribution of loaded cargo is not uniform. If the distribution of loaded cargo is not uniform, it will not only make part of the tire overloaded and accelerated wear, but also easily implosion the tire, and it will also easily cause a rollover accident and affect personal safety. If it is a tractor-trailer, it will also affect the adhesion of the front drive wheel to the ground.

11. The location and location of the parked vehicle is not appropriate. Such as: First, the tires are oiled, the second is the acidity and alkalinity of the tires, the third is prolonged exposure, the fourth is close to the fire source, and the fifth is that the ground has sharp stones and sharp hardware, which will injure the tires.

12, poor care. Long-term parking of locomotives and other equipment, if the tires are not suspended, especially when the tire pressure is lower than the specified value, due to the stable deformation, in some cases the tire casing will be delaminated and broken, thus greatly reducing the tire life.

13, driving technology is not high. Many new drivers often make frequent emergency brakes in traffic due to lack of experience. They often take emergency start-ups and high-speed steering and U-turns, trapping and traction resistance are too high, the wheels skid for long periods of time, or havetily through obstacles. Some will not choose the road surface and the corresponding speed, which will also affect the life of the tire. If you are driving on pebbles, gravel, or gravel roads, the service life of the tires will be reduced by 30% compared to driving on asphalt roads. If the speed at the time of steering is higher than 10% of the running speed, the tread wear speed will increase by 40-50%. When the ambient temperature reaches 36°C, if the locomotive reaches 90 km/h, the service life of the tire will be reduced to 70%.

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