Sealing structure for brake shoe assembly
A sealing structure and brake shoe technology, which is applied in the direction of engine sealing, brake parts, engine components, etc., can solve the problem of affecting the pin bushing and pin lubrication, lack of sealing measures, and affect the service life of the brake shoe assembly and other problems, to achieve good protection, to achieve sealing, to improve the effect of sealing effect
Inactive Publication Date: 2016-05-04
SINO TRUK JINAN POWER
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the gap between the brake shoe support pin bushing and the support pin, fine dust particles will enter between the brake shoe support pin bushing and the support pin, which will affect the use of self-lubricating materials on the inner surface of the self-lubricating bushing Life, which will affect the service life of the brake shoe assembly. At the same time, due to the lack of sealing measures between the support pin bushing and the support pin, the grease between the support pin bushing and the support pin will be due to the inside of the brake during use. The temperature rises and bleeds out, which will affect the lubrication between the pin bushing and the pin
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010] Attached below figure 1 , attached figure 2 The present invention will be further described.
[0011] A sealing structure of a brake shoe assembly, comprising: a brake base plate 1 and a brake shoe assembly 2, the lower end of the brake shoe assembly 2 is provided with a stepped hole, and the coaxial stepped holes are arranged at both ends of the middle hole by the middle hole And the O-ring installation hole with the same axis as the middle hole is formed, the diameter of the O-ring installation hole is larger than the diameter of the middle hole, the support pin bushing 3 is installed in the middle hole with interference, and the O-ring 5 is installed in the O-ring installation In the hole, the support pin 4 passes through the brake base plate 1, the O-ring 5, the brake shoe assembly 2 and the support pin bushing 3 to fix the brake shoe assembly 2 on the brake base plate 1. The O-ring 5 improves the sealing effect of the installation structure of the brake shoe ass...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a sealing structure for a brake shoe assembly. The sealing structure comprises a brake base plate and the brake shoe assembly, a stepped hole is formed in the lower end of the brake shoe assembly, and the coaxial stepped hole is formed by a middle hole and O-shaped ring installation holes which are formed in the two ends of the middle hole and are coaxial with the middle hole; and the diameter of the O-shaped ring installation holes is larger than the diameter of the middle hole, a backing pin lining is installed in the middle hole in an interference manner, O-shaped rings are installed in the O-shaped ring installation holes, and a backing pin penetrate the brake base plate, the O-shaped rings, the brake shoe assembly and the backing pin lining to fix the brake shoe assembly to the brake base plate. The sealing effect of the installation structure of the brake shoe assembly is improved through the O-shaped rings; on one hand, sealing of lubrication grease between the backing pin lining and the backing pin is achieved; and on the other hand, foreign matter like external fine particles can be effectively prevented from entering a gap between the backing pin lining and the backing pin, and good protection of the backing pin lining and the backing pin is achieved.
Description
technical field [0001] The invention relates to a sealing structure of a brake shoe assembly. Background technique [0002] At present, the brake shoe assembly of the front and rear axles of heavy-duty trucks usually uses cast shoes or punched and welded shoes. The side of the brake shoe support pin is usually pressed into a self-lubricating bush and then rotated around the support pin, or the brake shoe support pin side adopts a semicircular structure and The support pins are in direct contact with frictional rotation. During the driving process of the car, the car will brake frequently, and the friction plate of the brake shoe assembly will rub against the brake drum during braking, and fine dust particles will continue to be generated inside the brake during the braking process. Due to the gap between the brake shoe support pin bushing and the support pin, fine dust particles will enter between the brake shoe support pin bushing and the support pin, which will affect the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F16D65/09F16J15/16
CPCF16D65/09F16J15/16
Inventor 齐学先王西富刘宏威
Owner SINO TRUK JINAN POWER