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A gap self-adjusting brake based on series magnetostriction and its control method

A technology of magnetostrictive and magnetostrictive materials, applied in the direction of slack adjusters, brake actuators, gear transmission mechanisms, etc., can solve the problems of poor braking effect, large vehicle layout space, and motor stalling, etc., to achieve The layout is convenient and easy, the overall structure is simplified, and the effect of avoiding the loss of braking force

Active Publication Date: 2021-11-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a gap self-adjusting brake based on series magnetostrictive material and its control method, so as to solve the problem of complex braking structure, poor braking effect, and vehicle failure in the prior art. The layout space takes up a lot and the problem of motor stalling

Method used

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  • A gap self-adjusting brake based on series magnetostriction and its control method
  • A gap self-adjusting brake based on series magnetostriction and its control method
  • A gap self-adjusting brake based on series magnetostriction and its control method

Examples

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Effect test

example 1

[0048] Example 1, the self-locking device includes: a first electromagnet, a first drive spring 404, a wedge-shaped self-locking block 405, a wedge-shaped transmission block 406 and a third magnetic isolation cover 403; the first electromagnet includes: a third excitation wire 401 and the first iron core 402; the third magnetic isolation cover 401 is fixedly connected with the brake housing 11; the first iron core 402 and the third excitation coil 401 are installed in the third magnetic isolation cover 403 to avoid being subjected to External magnetic field interference; the third excitation coil 401 is wound on the first iron core 402; one end of the first iron core 402 is fixedly connected to the brake housing 11; the wedge-shaped transmission block 406 is respectively connected to the first magnetostrictive The rod 22 and the second magnetostrictive rod 32 are fixedly connected; the wedge-shaped transmission block 406 has a wedge-shaped groove on the top, and one end of the ...

example 2

[0049] Example 2, refer to Figure 2a , Figure 2b As shown, the self-locking device includes: a second electromagnet, a second drive spring 414, a fourth magnetic isolation cover 411, a sawtooth self-locking block 415 and a sawtooth transmission block 416; the second electromagnet includes: a fourth excitation coil 412 and the second iron core 413; the fourth excitation coil 412 is wound on the second iron core 413; the fourth magnetic isolation cover 411 is fixedly connected to the brake housing 11; the second iron core 413 is connected to the fourth excitation The coils 412 are all installed in the fourth magnetic isolation cover 411 to avoid interference from the external magnetic field; one end of the second iron core 413 is fixedly connected to the brake housing 11; The core 413 and the sawtooth self-locking block 415 are fixedly connected; the sawtooth transmission block 416 is fixedly connected to the first magnetostrictive rod 22 and the second magnetostrictive rod 3...

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Abstract

The invention discloses a gap self-adjusting brake based on series magnetostriction and a control method thereof, comprising: a brake actuator, a gap self-adjusting device, a braking force driving device and a self-locking device; in the stage of braking, the self-locking The block is under downward pressure under the action of the driving spring, and the self-locking block and the transmission block are used to prevent the self-locking block from sliding up and the transmission block from sliding to the right; at the end of the braking stage, the current passes through The third excitation coil generates a magnetic field, and the iron core generates magnetism under the action of the magnetic field, which realizes the adsorption of the self-locking block and completes the unlocking of the self-locking structure; thus, the friction plate of the right brake is driven downward by the first magnetostrictive rod Move right. The invention cancels the application of the motor in the braking process and avoids the phenomenon of motor stalling.

Description

technical field [0001] The invention belongs to the technical field of automobile brake systems, and specifically refers to a gap self-adjusting brake based on serial magnetostriction and a control method thereof. Background technique [0002] With the continuous development of productivity, people's living standards continue to improve, and the way of travel has gradually begun to change. In recent years, the development of intelligent driving is in full swing, and as an important part of intelligent driving, chassis control is gradually innovating the current working method. In the future, with the continuous improvement of vehicle intelligence, the control of the chassis will be decoupled from the traditional transmission mechanism, and the control by wire will be used to achieve the goal. As an integral part of chassis control, braking will gradually enter the door of wire control. [0003] For the brake solution, drum brakes and disc brakes are commonly used in the ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/14F16D65/38F16D121/28F16D127/06
CPCF16D65/14F16D65/38F16D2121/28F16D2127/06
Inventor 王展王春燕刘晓强赵万忠吴刚朱耀鎏于博洋张自宇王一松
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS