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auto adjuster

An automatic adjustment, driving shaft technology, applied in the direction of the slack adjuster, etc., can solve the problems of unstable braking clearance and small braking clearance, and achieve the effect of avoiding the accumulation of return error and stabilizing the braking clearance

Inactive Publication Date: 2011-12-07
段昌金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the brake clearance of the existing automatic adjustment device with an auxiliary adjuster is unstable and cause the brake clearance to be too small, the present invention proposes an automatic adjuster with an improved structure

Method used

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Embodiment Construction

[0007] like figure 1 As shown, the present invention is further described as follows: the connecting block of the automatic adjuster is composed of an inner block 6 and an outer block 7, the friction pad is composed of an inner pad 4 and an outer pad 5, and the inner block 6 and the outer block 7 are in a clearance fit , the inner pad 4 is pressed on the inner block 6, the outer pad 5 is pressed on the outer block 7, the inner pad 4 and the outer pad 5 are radially fixed with a gap, and a gap return device is formed between the inner pad 4 and the outer pad 5 The driving shaft 1 is composed of an outer polygonal / inner polygonal head and a journal, the polygonal head is larger than the journal; the driving shaft 1 passes through the inner block 6, the inner ring 10, and protrudes from the lower end of the inner ring 10, The head is pressed on the inner block 6 through the washer 3 and the inner pad 4 of the friction pad, and the drive shaft 1 is in clearance fit with the inner ...

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Abstract

An automatic adjuster, the driving shaft is composed of an outer polygonal / inner polygonal head and a journal, the driving shaft passes between the connecting block and the inner ring, and is supported by a one-way bearing, and the outer circle of the outer ring is provided with a groove; sliding There is a spline or polygonal structure on the outer neck of the sleeve. The upper end of the sliding sleeve is radially fixed to the driving shaft. A spring is packaged between the cavity of the sliding sleeve and the journal of the driving shaft through a compression block, which is connected to the end of the driving shaft. One end of the compression spring is supported on the sliding sleeve, and the other end is supported on the pressing block; the upper end surface of the sliding sleeve and the lower end surface of the inner ring are in transmission engagement; a gap is set between the connecting block and the driving shaft The return device makes the drive shaft and sliding sleeve return flexibly to ensure the stability of the brake gap; the front end of the drive shaft is provided with a spline, and a synchronous gear is installed outside the spline to ensure the synchronous adjustment of the main adjuster and the auxiliary adjuster , to ensure the stability of the brake gap. The automatic adjuster can be used for both single-column brakes and double-column brakes.

Description

technical field [0001] The invention relates to automatic adjusters for disc brakes. Background technique [0002] At present, the brake gap automatic adjustment device has been widely used in medium and heavy-duty truck disc brakes. The automatic adjustment device is composed of a brake actuator and an automatic adjuster. The automatic adjuster can be divided into two basic structural types: 1. .Use the one-way spring to rotate in the forward direction, hold tight and reversely loosen to realize the one-way transmission of rotary motion; 2.Use the clutch to make it only rotate in one direction to realize the one-way transmission of rotary motion. The disadvantage of using the one-way spring structure is that the automatic adjuster relies on the forward-rotating force of the spring to transmit the rotational torque when moving forward, and needs to overcome the forward-rotating force of the spring when reversed and manually retreating. The structural performance is not very ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/40
Inventor 段昌金
Owner 段昌金
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