1. Lip seal structure
Clutch hydraulic bearing for MERCEDES often adopts lip seal structure to prevent hydraulic oil leakage. Lip seal is generally made of elastic materials such as rubber, and its shape is similar to lips. This sealing structure is installed at the appropriate position of the bearing, such as the connection between the hydraulic chamber and the outside world or the matching part between the piston and the cylinder body.
The working principle of lip seal is based on the close contact between its lip and the matching surface. When the hydraulic oil is under pressure, the lip will be squeezed to fit more tightly on the surface of the shaft or cylinder body. The design of the lip can adapt to a certain degree of eccentric movement or vibration of the shaft to ensure that the sealing effect can be maintained under dynamic conditions. Moreover, the lip seal can be designed into a single lip, double lip or even multi-lip structure according to different working pressures and sealing requirements. The double lip seal structure can prevent external dust, moisture and other impurities from entering the hydraulic bearing while preventing hydraulic oil leakage, thereby improving the reliability and service life of the bearing.
2. Labyrinth seal structure
Labyrinth seal is also a sealing structure that may be adopted by Clutch hydraulic bearing for MERCEDES. Labyrinth seals achieve sealing by setting up a series of tortuous channels at the sealing part. These channels are formed by sealing rings and the surface of the shaft or cylinder body. When the hydraulic oil flows in the channels, it will constantly change direction, producing a throttling effect.
Due to the large flow resistance of hydraulic oil in the labyrinth channel, it is difficult for the hydraulic oil to break through these channels and leak out. At the same time, the labyrinth seal structure requires high manufacturing precision, and it is necessary to ensure that the gap between the sealing ring and the mating surface is uniform and appropriate. The advantage of this sealing structure is that it requires almost no additional energy consumption and can maintain good sealing performance under high speed and high temperature environment. However, the relatively complex structure of the labyrinth seal may increase the cost of manufacturing and assembly.
3. Combined sealing structure
In some Clutch hydraulic bearings for MERCEDES, a combined sealing structure is also used to achieve better sealing effect. For example, a lip seal and a labyrinth seal are combined. This combined sealing structure can give full play to the good sealing performance of the lip seal under low pressure and static conditions, and the advantages of the labyrinth seal under high pressure and dynamic conditions.
In practical applications, the combined sealing structure can firstly throttle and block the hydraulic oil through the labyrinth seal to reduce the pressure of the hydraulic oil on the lip seal, and then the lip seal will perform the final sealing, ensuring that even under complex working conditions, such as large fluctuations in hydraulic oil pressure, frequent rotation and vibration of the bearing, it can effectively prevent hydraulic oil leakage and improve the overall sealing performance of the Clutch hydraulic bearing for MERCEDES.
