A steering gear outer ball joint assembly with multiple sealing structures

Abstract

The invention discloses a steering gear external ball component with multiple sealing structures. The steering gear external ball component with the multiple sealing structures comprises a base; a spherical groove is formed in the base; a ball is mounted in the groove; a pin body and a pin rod are arranged above the ball in sequence; the pin rod, the pin body and the ball are welded with each other in sequence from top to bottom; a fixing plate sleeves the outer wall of the pin body; the outer wall of the bottom of the fixing plate is connected with a lower connecting sleeve; the bottom of the lower connecting sleeve is connected with the outer wall of the top of the base; a cover shell left component and a cover shell right component are respectively clamped on two sides of the fixing plate; the cover shell left component and the cover shell right component are of hollow structures; and openings are formed in the outer walls of opposite sides of the cover shell left component and the cover shell right component. The steering gear external ball component with the multiple sealing structures has the multiple sealing structures; and after an upper sealing structure is worn, dusts are stopped by the fixing plate and the dusts on the fixing plate can be cleaned; therefore, dust accumulation is avoided and the dusts are effectively stopped from entering the interior of the steering gear base.

Description

technical field [0001] The invention relates to the technical field of automotive steering gear seals, in particular to a steering gear outer ball joint assembly with multiple sealing structures. Background technique [0002] With the development of society and the improvement of people's living standards, people have higher and higher requirements for the handling stability and comfort of cars. The performance of the steering system is one of the objects that people focus on, and one of the conditions to ensure the above performance is the steering. There should be no transmission gap between the various components of the system. The reason for the transmission gap is that the sealing of the moving part of the transmission part is poor, so that foreign matter enters, resulting in wear of the moving part. The existing sealing structure is not tight enough, and dust and foreign matter invade the steering When the steering wheel is turned, the steering wheel vibrates, which is...

AI Technical Summary

Problems solved by technology

[0002] With the development of society and the improvement of people's living standards, people have higher and higher requirements for the handling stability and comfort of cars. The performance of the steering system is one of the objects that people focus on, and one of the conditions to ensure the above performance is the steering. There should be no transmission gap between the various components of the system. The reason for the transmission gap is that the sealing of the moving part of the transmission part is poor, so that foreign matter enters, resulting in wear of the moving part. The existing sealing structure is not tight enough, and dust and foreign matter invade the steering In the steering gear, the outer ball joint assembly of the steering gear is worn. When the car is turning, the steering wheel vibrates, which is not conducive to the steering operation and reduces the driving comfort of the vehicle.

[0003] In order to solve the above-mentioned problems, Chinese Patent No. CN102649447A announced "Steering Gear Outer Ball Head Assembly with Multiple Sealing Structure". Metal skeleton, and a boss is designed at the corresponding position of the pin body of the outer ball pin, and the lip of the dust cover is fixed together with the steering knuckle mounting surface; through the above structural improvements, the dust cover can better realize the protection of the ball head. Sealing, but the inner wall of the opening of the five annular lips and the lip of the dust cover is constantly worn with the outer wall of the pin during the operation of the steering gear. The opening continues to expand as time goes by, and the dust gathers in the lip and will still invade the steering gear.

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