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Prism type self-adaptive drum brake adjusting device

An adjusting device and self-adaptive technology, applied in the direction of the slack adjuster, can solve the problems such as the inability to further increase the outward opening distance of the friction plate, increase the cost of use, and have potential safety hazards, and achieve strong controllability of the shape. , The effect of stable structure and low price

Pending Publication Date: 2020-10-09
成都陆虎电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the brake drum or the friction lining is worn, the brake gap will be formed. Since the rotation angle of the brake camshaft is limited, it rotates within the specified angle range, and the effective braking eccentricity is fixed. For the existing wear The friction plate and the brake drum cannot further increase the outward distance of the friction plate to compensate for the brake clearance
Therefore, once there is a brake gap, if the brake drum or friction plate is not replaced in time, it will easily cause the brakes to be insensitive, resulting in safety hazards when emergency braking is required. In addition, frequent replacement of friction plates will inevitably increase the cost of use and cause waste of resources

Method used

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  • Prism type self-adaptive drum brake adjusting device
  • Prism type self-adaptive drum brake adjusting device
  • Prism type self-adaptive drum brake adjusting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1-Figure 7 As shown, a prismatic self-adaptive drum brake adjustment device includes a brake disc 1, two circular-arc block-shaped brake shoes 2 symmetrically arranged on the brake disc 1, and a friction pad arranged on the outer arc surface of the brake shoe 2. Plate 3, the shoe bodies of the two brake shoes 2 are pulled together by the return tension spring 4, and a brake camshaft 5 for controlling the opening and closing degree between the two brake shoes 2 is provided between one set of corresponding ends of the two brake shoes 2 , the other set of corresponding ends is provided with an adjustment component 6, the adjustment component 6 can be adjusted up and down perpendicular to the two brake shoes 2, when the adjustment component 6 is adjusted downward, the adjustment component 6 stretches the two brake shoes 2 to both sides Both sides expand, when the adjustment assembly 6 is adjusted upwards, the two brake shoes 2 are condensed towards the middl...

Embodiment 2

[0039] The difference between the second embodiment and the first embodiment is that both the adjusting rod 61 and the sliding block 62 in the second embodiment have undergone surface treatment, and the specific treatment methods are as follows:

[0040] Immerse the adjusting rod and sliding block in 5% NaOH solution, immerse at 80-85°C for 20-30 minutes to remove the oil stains on the surface, then wash with distilled water and put them in 10% dilute hydrochloric acid solution to wash and remove the surface Residual impurities such as NaOH are finally cleaned with deionized water and dried at a constant temperature of 100°C; the treated adjustment rod and sliding block are immersed in deionized water, and then laser drilling is performed with a nanosecond laser, where the pulse width of the laser is 10ns , the wavelength is 1064nm, the power is 6-10W, the repetition frequency is 20kHz, the height of the adjustment rod and the sliding block from the water surface is 20-28mm, af...

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Abstract

The invention discloses a prism type self-adaptive drum brake adjusting device, and relates to the technical field of brake devices. The prism type self-adaptive drum brake adjusting device comprisesa brake disc, two arc-block-shaped brake shoes symmetrically arranged on the brake disc, and friction plates arranged on the outer arc surfaces of the brake shoes. Shoe bodies of the two brake shoes are connected through a reset tension spring in a pulling mode. A brake cam shaft used for controlling the opening degree between the two brake shoes is arranged between one set of corresponding ends of the two brake shoes, and an adjusting assembly is arranged between the other set of corresponding ends of the two brake shoes. The adjusting assembly can be adjusted up and down in the mode of beingperpendicular to the two brake shoes. When the adjusting assembly is adjusted downwards, the adjusting assembly opens the two brake shoes towards the two sides and expands towards the two faces. Whenthe adjusting assembly is adjusted upwards, the two brake shoes are contracted towards the middle under the action of the reset tension spring. According to the prism type self-adaptive drum brake adjusting device, the gap between a brake drum and the friction plates can be adjusted easily, conveniently and rapidly through the adjusting assembly, so that the friction plates are fully utilized, the resource utilization rate is increased, and meanwhile the brake effect is ensured.

Description

technical field [0001] The invention relates to the technical field of brake devices, in particular to a prismatic self-adaptive drum brake adjustment device. Background technique [0002] Vehicles are the most convenient and widely used means of transportation in modern traffic. Brakes are the most important safety parts on vehicles. The braking performance of vehicles directly affects the driving safety of vehicles. Drum brakes are inexpensive and conform to the traditional design, and are widely used. They include brake drums, brake shoes, support pins, return springs, and brake camshafts. The friction disc on the brake shoe rubs against the brake drum to achieve braking. When the brake drum or the friction lining is worn, the brake gap will be formed. Since the rotation angle of the brake camshaft is limited, it rotates within the specified angle range, and the effective braking eccentricity is fixed. For the existing wear The friction plate and the brake drum can not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/46
CPCF16D65/46
Inventor 张荣木
Owner 成都陆虎电子科技有限公司
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