Electronic tong-type braking device

Abstract

The invention discloses an electronic tong-type braking device which comprises an executive motor, a speed reduction unit, a control unit, an input gear, an output shaft, two braking executive units,a tong support, a left tong body and a right tong body. The right tong body is fixedly connected with a rack. A circular hole slide is arranged on the right tong body. The tong support is connected with the circular hole slide of the right tong body through a guide pin in a matched mode. The tong support can reciprocate in the axial direction of the circular hole slide. The left tong body and theright tong body are fixedly connected to form a mounting cavity. The control unit is electrically connected with the executive motor. An output shaft of the executive motor is connected with the inputend of the speed reduction unit. The output end of the speed reduction unit is connected with an output shaft. The two ends of the output shaft are connected with the left tong body and the right tong body correspondingly. The input gear is connected with the output shaft, and connected with the two braking executive units which are arranged symmetrically. The electronic tong-type braking deviceprovided by the invention is high in reliability, low in cost, small in size, easy in linear control and high in environment adaptability.

Description

technical field [0001] The invention relates to the field of automobile brake equipment, in particular to an electronic caliper brake device. Background technique [0002] Traditional caliper brake devices generally have two structures, one is to push the friction block to clamp the brake disc through the lever and cam mechanism through the cable to realize the braking of the brake disc; the other is to use the hydraulic cylinder and hydraulic circuit to brake the brake disc. Push the friction block to clamp the brake disc to achieve braking on the brake disc. For the first type of brake caliper structure, as far as the vehicle brake is concerned, since the path from the driver's control point to each brake caliper body is very long, the cable needs to be provided with multiple nodes, which is likely to cause the cable node Wear and tear and broken cables are prone to problems such as insufficient braking torque or failure. For the second type of brake caliper structure, i...

AI Technical Summary

Problems solved by technology

For the first type of brake caliper structure, as far as the vehicle brake is concerned, since the path from the driver's control point to each brake caliper body is very long, the cable needs to be provided with multiple nodes, which is likely to cause the cable node Wear and tear and breakage of the cable, prone to problems such as insufficient braking torque or failure

For the second type of brake caliper structure, it is the most widely used vehicle brake device at present. The driver injects high-pressure oil into the brake after manipulating the brake cylinder and assisting with a vacuum booster or high-pressure oil. In the piston cavity of the caliper, the piston is pushed to drive the friction block to clamp the brake disc. From the position of the cab to the position of the brake caliper at each wheel, a long hydraulic pipeline or air circuit needs to be arranged. The chassis pipeline takes up a large space and the pipeline The pressure loss is large, the combination-separation response time lags, and the pipeline layout takes a long time, etc.

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