Automechanika Shanghai - Shenzhen 2023

02.15-02.18

See you in Shenzhen

Exhibition number: 5H29

Rubber has a service life, so rubber parts have become the most aging parts on the car, and they are replaced frequently. The most typical example is the tire, which has to be replaced every 3-5 years. There are also typical examples on the engine, such as valve oil seal and engine foot rubber. If the valve oil seal is not changed for a long time, the vehicle will inevitably burn engine oil.

Valve oil seal

There are also many rubber parts used in the automobile chassis, among which the ball cage sleeve is one of them. Many car owners are troubled by the ball cage oil leakage, which can be seen from the data of the repair vehicles in the garage. There are not a few vehicles coming to repair because of the half axle ball cage oil leakage.

The ball cage covers of some vehicles are seriously damaged, and most of the black grease in them has been thrown out. They all came to the garage for inspection because of the serious abnormal noise of the chassis. General vehicles are driven in different ways. For example, there are usually 4 or 8 ball cages represented by the previous four-wheel drive vehicles and four-wheel drive vehicles. There is an inner and outer ball cage at both ends of the half shaft. Each ball cage is protected by a rubber sleeve, which can prevent dust, moisture and other particulate impurities from entering the ball cage and prevent the leakage of lubricating grease.

Do not underestimate this rubber sleeve. Most of the problems of the ball cage are related to it. When the rubber sleeve is broken, the internal lubricating grease will be dried, and the external particle impurities and moisture will easily enter. The ball cage will be damaged due to dry grinding. At this time, the problem is serious. It costs about 100 yuan to replace the ball cage cover. If the ball cage is damaged, it will cost hundreds or even thousands of yuan to repair. Because the ball cage is worn out, it usually needs to be replaced together with the half shaft when going to the garage. Replacing the half shaft involves removing the gearbox, which will obviously be more troublesome.

When the ball cage sleeve is aged, the ball cage sleeve can be replaced directly. Generally, it only needs several steps, such as knocking down the ball cage or removing the half shaft, removing the bearing, replacing the sleeve and fixing clip. The process is simple and the price is cheap. However, if the aging of the cage cover is left unchecked, it may require more than 10 times the maintenance cost. Therefore, it is necessary to replace the rubber sleeve of the ball cage in a preventive manner. Do not wait until there is an abnormal noise, because the ball cage may have been injured when there is an abnormal noise.

There are two different reference points for the preventive replacement of the cage cover. First, for old vehicles with a mileage of more than 100000 km, the chassis should be regularly observed and the cage cover should be replaced immediately if it is found damaged; The other way is the safest, that is, after the vehicle has run for 100000 kilometers, directly replace all the cage covers to eliminate all hidden dangers.

Replace the ball cage

In other words, the preventive replacement of the cage cover should be based on the vehicle running over 100000 km, that is, if the cage cover has been used for more than 100000 km, it should be regularly observed or directly replaced.

The symptoms of broken car cages are: abnormal noise or jamming will occur during use. There are two kinds of ball cages on the car: inner ball cage and outer ball cage. To judge the quality of the ball cage, it is recommended to shake the ball cage by hand to feel the gap between the ball cages. Generally, the interior of the ball cage is closely matched, and there is almost no gap. If you feel that the gap is relatively large, it means that the ball cage is seriously worn, that is, it needs to be replaced. The inner ball cage of the car is connected to the differential of the gearbox, and the outer ball cage is connected to the wheel. Whether it is the power take-off or when the car turns, the outer ball cage plays a role. Automobile ball cage is generally composed of bell shell, Trident bearing steel ball, dust cover, harness ring and lubricating grease.

2020 Shanghai Frankfurt Auto Parts Exhibition

12.02-12.05

See you in Shanghai!

Exhibition number: 1F92

If there is no professional inspection equipment, it is necessary to check the car ball cage mainly:

1. The size of internal and external splines and threads affects the loading size of the cage,

2. Check the size of the oil seal of the outer ball cage. Generally, the oil seal of different models is different,

3. Check whether the groove of internal spline circlip is correct. The width of the groove affects the movement of the cage on the axle shaft after loading;

4. Insert a shaft into the internal spline and swing the cage to see if it can rotate flexibly;

5. Materials, heat treatment performance, etc. need special equipment to check

Difference: the inner ball cage is connected to the differential part of the gearbox, and the outer ball cage is connected to the wheel part. The function of the outer ball cage is the function of the outer ball cage whether it is the power output or the vehicle turning.

The ball cage, also known as "constant velocity universal joint", is an important part of the car transmission system. Its function is to transfer the power of the engine from the transmission to the two front wheels to drive the car at high speed.

Cage, also known as "constant velocity universal joint", is an important part of the car transmission system. Its function is to transfer the power of the engine from the transmission to the driving wheel and drive the car at high speed.

There are many types of constant velocity joints used in cars, among which ball cage type constant velocity joint and tripod type constant velocity joint are the most widely used. They are mainly composed of sliding sleeve, three-way shaft, transmission shaft, star sleeve, cage and bell shell. Because constant velocity universal joint transmits heavy driving torque, with heavy load, high transmission accuracy, large demand and safety parts, its main parts are processed by precision forging.

Outer ball cage: the steel ball of this kind of ball cage is fixed in six windows of a cage between the star sleeve and the bell shell. The steel ball just has half of the position in the star sleeve and the bell shell, once to determine the angle of action with the universal joint. The smooth surface treatment makes the movement of the universal joint like a helical gear, and six steel balls push the star sleeve where they are respectively And the fairway in the trumpet is just to transmit torque through the steel ball rather than the teeth of the gear.

Inner ball cage (Trident type): there is no steel ball in the three ball pin type constant velocity universal joint, but three bearings with needle roller are used, which can slide in three tracks in the bell housing. It is mainly used for the inner ball cage of the four-wheel drive vehicle. It is suitable for the position of the inner ball cage with small torsion angle. It can slide inward and outward to adapt to the length change of the driving shaft when the vehicle moves.

Inner ball cage (six ball type): this kind of sliding constant velocity universal joint product has a different design concept. The torque is transmitted by the steel ball in the inclined track. The performance of the product is excellent, which is beyond the TJ type inner ball cage. However, the sliding distance is short, which can solve the problem of noise. It is widely used in four-wheel drive vehicles.

Electrical equipment e68a84e8a2ade799bee5baa631333365666264 is composed of power supply and electrical equipment. Power supply includes battery and generator; electrical equipment includes engine starting system, ignition system of gasoline engine and other electrical devices.

1. Battery: the function of the battery is to supply power to the starter, and supply power to the engine ignition system and other electrical equipment when the engine starts or runs at a low speed. When the engine is running at a high speed, the generator generates enough power and the battery can store the extra power. Each single battery on the battery has positive and negative poles.

2. Starter: its function is to convert electrical energy into mechanical energy, drive the crankshaft to rotate and start the engine. When the starter is used, it shall be noted that the starting time shall not exceed 5 seconds, the interval of each use shall not be less than 10-15 seconds, and the continuous use shall not exceed 3 times. If the continuous starting time is too long, it will cause a lot of discharge of battery and overheating and smoke of starter coil, which will easily damage the parts.

Tire is one of the important parts of the automobile, which directly contacts with the road surface, and together with the automobile suspension to mitigate the impact of the automobile driving, to ensure that the automobile has good ride comfort and ride comfort; to ensure that the wheels and the road surface have good adhesion, improve the traction, braking and trafficability of the automobile; to bear the weight of the automobile, the tire plays an important role in the automobile People pay more and more attention to its function.