Automatic regulating device for vehicle brake play and wheel brake containing the device

A technology of automobile braking and self-adjustment, applied in the direction of slack adjusters, etc., can solve the problems of high price, clearance overadjustment, and high adjustment accuracy requirements

Inactive Publication Date: 2008-11-12
LIUZHOU JINYUAN MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an automobile brake clearance self-adjusting device and a wheel brake containing the device, so as to solve the difficulty in timely and accurately adjusting the brake clearance existing in the manual adjustment mechanism in the original brake. And existing automatic adjustment devices have high precision requirements, high prices, and the possibility of clearance over-adjustment or under-adjustment.

Method used

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  • Automatic regulating device for vehicle brake play and wheel brake containing the device
  • Automatic regulating device for vehicle brake play and wheel brake containing the device
  • Automatic regulating device for vehicle brake play and wheel brake containing the device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: A self-adjusting device for automobile brake clearance

[0047] A self-adjusting device for brake clearance of automobiles, which is packaged in the upper and lower two half shells 10 1 、10 2The transmission wheel group I and the counting wheel group II are composed of the inner transmission wheel group I and the counting wheel group II. One end surface of the two groups of wheel groups is bonded together. The pawl 3 is formed, the drive wheel 2 is set in the inner hole 101 of the reset wheel 1, and N=12 through square grooves 102 are evenly distributed along the circumferential direction on the inner hole wall of the reset wheel 1, and each square groove 102 is equipped with A transmission claw 3 has a small hole at the bottom of the square groove 102, and a compression spring 103 is housed in the hole. There are M=20 ratchets 201 on the outer circle of the transmission wheel 2, and the bottom surface 2d of the ratchet 201 is connected to the transmissio...

Embodiment 2

[0068] Embodiment 2: A self-adjusting device for automobile brake clearance

[0069] An automobile brake gap self-adjusting device, the basic structure of which is the same as that of Embodiment 1, the difference is that the transmission wheel 2 and the counting wheel 5 are a transmission counting wheel 8 connected as one, and the transmission counting wheel 8 is located at The part in the hole of the reset wheel 1 plays the role of the transmission wheel 2, and the part in the hole of the limiting wheel plays the role of the counting wheel 5; the inner hole 401 at the end of the limiting wheel 4 and the bracket is equipped with an outer circular belt convex The collar 7 of block 701, the projection of this collar 7 is in the spacer wheel square groove 402, and the side wall of the protrusion 701 one side of collar 7 outer circle and the inwall of spacer wheel square groove 402 have θ=4 ° ~ 10 ° corner clearance.

[0070] Its specific working process is as follows:

[0071] ...

Embodiment 3

[0076] Embodiment 3: Wheel brake with auto brake gap self-adjusting device

[0077] A wheel brake with an automobile brake gap self-adjusting device, including a brake base plate III, a bracket IV, a brake shoe frame V, a friction plate VI fixed on the brake shoe frame panel, a brake drum VII, and a camshaft VIII , and the adjusting arm IX with the auto brake clearance self-adjustment device, the automobile brake clearance self-adjustment device is the automobile brake clearance self-adjustment device described in embodiment one or embodiment two, and the clearance self-adjustment device passes through The spline groove in the inner hole of the transmission wheel or the transmission counting wheel is connected with the camshaft, and its limit wheel 4 is connected on the bracket IV through the collar 7 (see Fig. 11-Fig. 13).

[0078] Attached table: List of M and N value collocations:

[0079]

[0080] In the attached table: ψ——the adjustment angle of the camshaft, its valu...

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PUM

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Abstract

A self adjusting device of brake gap on automobile is prepared as forming driving wheel set by reset wheel and driving wheel as well as driving key, jacketing said driving wheel in internal hole of reset wheel, setting square trench in internal wall and driving key in square trench as well as wolf teeth on excircle of driving wheel; forming counting wheel set by spacing wheel and counting wheel as well as counting key, jacketing said counting wheel in internal hole of spacing wheel, setting square trench in internal hole wall and counting key in square trench as well as wolf teeth on excircle of counting wheel; setting said wolf teeth and its wheel axle in proper way.

Description

Technical field: [0001] The invention relates to an automobile accessory, in particular to an automobile brake gap self-adjusting device and a wheel brake containing the device. Background technique: [0002] Most of the brake gap adjustment mechanisms of air pressure actuated camshaft drive hoof and drum wheel brakes used in my country's medium-sized vehicles are manual adjustment devices. Since the manual adjustment mechanism is completely operated by the driver's experience, it is difficult to master the adjustment of the brake gap. The timing, and the adjusted gap size is also based on the operator's experience, it is difficult to meet the specified requirements. If you want to achieve a more accurate adjustment gap, you need to measure it with a thickness gauge, which is troublesome. In the mid-1990s, foreign brake clearance automatic adjustment devices began to enter my country's auto parts market, but this kind of clearance automatic adjustment device has a complex str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/52
Inventor 钟玉清
Owner LIUZHOU JINYUAN MACHINERY MFG
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