A Drum Brake for Anti-deviation
A drum brake and anti-deviation technology, applied in drum brakes, brake types, slack adjusters, etc., can solve the problems of vehicle braking deviation, high manufacturing cost, unsatisfactory effect, etc., to solve the problem of deviation. Effect
Active Publication Date: 2017-11-03
胡正林 +1
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Problems solved by technology
[0002] At present, in drum brakes, no matter whether it is running forward or backward, one of the two brake shoes is the leading brake shoe, and the other is the slave brake shoe, resulting in uneven bonding force of the brake shoe friction plate. The unsatisfactory fit between the disc and the brake drum and the deviation caused by many reasons cause the vehicle to brake and deviate, and there is no effective way to deal with it
[0003] In the industry, in order to improve the braking efficiency and the structural defects of the brake, the air pressure of the brake cylinder is increased one-sidedly, the rotational thrust of the brake cam is increased to generate the bonding force between the brake shoe and the hub, and the braking torque is increased. The effect is not good. Ideal, and second, the mechanical strength and performance of other structural parts are not enough, or the structural layout space is suppressed. In addition, the brake shoe of this kind of brake belongs to a large-scale suspension rotation structure, and the industry is one-sidedly pursuing the radial runout and vertical Degree, bus straightness, etc. to solve the brake deviation, so that the manufacturing cost is high and the effect is not obvious
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[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, which should not be construed as a limitation of the present invention;
[0014] according to figure 1 and figure 2 As shown, a drum brake for anti-running deviation is composed of a brake drum 1, a brake bottom plate 2, a return spring 3, a brake shoe assembly 4 and a friction plate 5 arranged on the brake shoe. Both ends of the brake shoe assembly 4 are provided with support pins 6, and the top extension of the brake base plate 2 is provided with a floating compensation device. The floating compensation device is composed of a torque variable adjustment mechanism 7, a first linkage deflection arm 8, The second interlocking deflection arm 9 and the interlocking link 10 are composed of the first interlocking deflection arm 8 and the second interlocking deflection arm 9 arranged at both ends of the torque variable adjustment mechanism 7 and ad...
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The invention discloses a drum brake for preventing running deviation, which is composed of a brake drum, a brake bottom plate, a return spring, a brake shoe assembly and a friction plate arranged on the brake shoe. The brake shoe assembly Support pins are provided at both ends, and a floating compensation device is provided at the extension of the top end of the brake base plate. The device is equipped with a torque variable eccentric adjustment cam, and the torque variable adjustment mechanism has a support shaft, and the support shaft has an eccentric shaft structure, and the support pin is movably connected with the eccentric shaft structure; after the brake of the present invention is adopted, the eccentric shaft structure is torque variable eccentric Adjusting the cam and rotating the eccentric shaft structure will change the force arm of the force of the first brake shoe on the rear brake shoe, thereby changing the bonding force of the rear brake shoe, changing the braking torque of the rear brake shoe, and realizing braking. The torque is adjustable to solve the braking deviation caused by other factors of the vehicle.
Description
technical field [0001] The invention relates to an automobile drum brake system, in particular to a drum brake which can effectively adjust the brake to prevent deviation from running. Background technique [0002] At present, in drum brakes, no matter whether it is running forward or backward, one of the two brake shoes is the leading brake shoe, and the other is the slave brake shoe, resulting in uneven bonding force of the brake shoe friction plate. The unsatisfactory fit between the pad and the brake drum and the deviation of many reasons cause the vehicle to brake off-track, and there is no effective method for special treatment. [0003] In the industry, in order to improve the braking efficiency and the structural defects of the brake, the air pressure of the brake cylinder is increased one-sidedly, the rotational thrust of the brake cam is increased to generate the bonding force between the brake shoe and the hub, and the braking torque is increased. The effect is no...
Claims
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IPC IPC(8): F16D51/18F16D65/40
Inventor 胡正林张兴朱敏
Owner 胡正林