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Novel bevel gear vehicle brake clearance automatic adjusting arm

A technology for automatic adjustment of arms and automobile braking, applied in the direction of slack adjusters, etc., can solve the problems of inconvenient and reliable installation and use, inflexible adjustment of adjustment arms, affecting the accuracy of adjustment arms, etc., so as to shorten the braking response, adapt to Wide range of models, eliminating the effect of braking lag

Inactive Publication Date: 2017-06-13
倪世荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned automatic brake gap adjustment arm for automobiles has solved some practical problems, it still has certain deficiencies, which are specifically manifested in: ① Due to the friction between the worm shaft arranged in the inner hole of the housing and the inner wall of the hole, its Sliding friction affects the transmission accuracy of the adjusting arm; ②The passive gear on the clutch assembly adopts a straight wheel structure, and there is a component force between the passive gear and the driving helical gear during operation, which causes the gear shaft on the clutch assembly to move in series. The adjustment arm is not flexible
③ The structure of the product is complex, bulky, poor interchangeability, installation and use are not convenient and reliable enough

Method used

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  • Novel bevel gear vehicle brake clearance automatic adjusting arm
  • Novel bevel gear vehicle brake clearance automatic adjusting arm
  • Novel bevel gear vehicle brake clearance automatic adjusting arm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] attached by figure 1 , 2 , 4, and 5: the adjusting arm includes a housing (1) with an arm handle (18), a worm (2) set in the housing (1) and fitted on the main part D of the worm shaft, and the worm ( 2) Mesh the worm gear (3), the clutch assembly (4) and the rear cover plate (6) with the spline shaft hole in the center, and it is characterized in that it also includes a front cover plate assembly (5). The front cover assembly (5) is provided with a driving gear (13) and a ferrule (17) to overcome the free stroke of the brake assembly deformation, and the clutch assembly (4) is provided with a return spring (12) , the clutch assembly (4) adopts a torsion spring structure to realize unitless adjustment; the active helical gear (11) on the clutch assembly (4) and the passive helical gear (14) on the worm shaft (7) The angle range of the helical gear used for meshing and engagement is 35-45 degrees, which is suitable for various brake chamber power requirements; the arm ...

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Abstract

The invention relates to a novel bevel gear vehicle brake clearance automatic adjusting arm. The adjusting arm comprises a shell with an arm handle, a worm rod arranged in the shell and sleeved on a worm rod shaft main piece D, a worm wheel engaged with the worm rod and with a spline shaft hole in the center, a clutch assembly and a back cover plate, and is characterized by further comprising a front cover plate assembly; the front cover plate assembly is provided with a driving gear and a clamping sleeve; an auxiliary return spring is arranged on the clutch assembly; a driving bevel gear on the clutch assembly is engaged with a driven bevel gear on a worm rod shaft; and the arm handle is a straight handle structure or an L-shaped bent structure, and is provided with a connecting hole. The adjusting arm is simple in structure, low in friction force and high in transmission precision.

Description

technical field [0001] The invention relates to a helical gear type automobile brake clearance automatic adjustment arm capable of overcoming brake deformation, in particular to a high precision helical gear type automobile brake clearance automatic adjustment arm. Background technique [0002] Automobile brake clearance automatic adjustment arm is a clearance compensation device suitable for wheeled automobile brakes. Its function is to adjust the braking clearance of automobile brakes to keep the clearance relatively stable so as to ensure the best braking force of the brakes. [0003] The traditional automobile brake clearance in our country is manually adjusted, which cannot automatically compensate the clearance between the brake drum and the brake shoe due to the wear of the brake lining, which will cause brake failure or deviation. [0004] At present, along with the development of my country's economy and the advancement of science and technology, there are already m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/58
CPCF16D65/58
Inventor 倪世荣
Owner 倪世荣
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