Hydraulic brake clamp mechanism for railway vehicle
A technology for hydraulic braking and rail vehicles, which is applied in the direction of brake actuators, gear transmission mechanisms, mechanical equipment, etc., and can solve problems such as oil leakage, reduced braking reliability, and increased braking response time
Active Publication Date: 2016-07-27
CRRC CHANGZHOU TECH MARK IND CO LTD +1
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AI Technical Summary
Problems solved by technology
Since the hydraulic piston and brake regulator can only act directly on one side of the brake pad, it will increase the braking response time, thereby affecting the braking efficiency of the basic braking device
In addition, the utility model directly fills the hydraulic piston with high-pressure oil through the oil pipe. Since a large braking torque is required when the rail vehicle brakes, a pulse pressure will be generated in the oil pipe during the pressure application and return process of the high-pressure oil. , so it is easy to cause oil leakage at the oil pipe joint, reduce the reliability of the brake, and thus affect the safety of the vehicle operation
Method used
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[0021] See Figure 1~6 As shown, the present invention is used for the hydraulic brake caliper mechanism of rail vehicles, including a bracket body 1, a clamp piston 12, a gap adjuster 11 and a brake pad 5, and one side of the bracket body 1 is sealed and connected to the oil cylinder body 16 and the other side are provided with two parallel and opposite clamp mounts 2, the main oil passage 1-1 in the bracket body 1, the oil passage in the oil cylinder body 16 and the oil distribution passage in the clamp mount 2 2-1 connected, the oil distribution channel 2-1 on the clamp mounting base 2 and the main oil channel 1-1 on the frame body are provided with a sealing ring at the joint, and the high-pressure oil is transferred through the oil piston set in the oil cylinder body 16. Push it into the main oil passage 1-1 in the bracket body 1, and then act on the clamp piston 12 through the oil distribution passage 2-1 in the clamp mounting seat 2 to push the brake pad 5 to move; for ...
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The invention relates to a hydraulic brake clamp mechanism for a railway vehicle. One side of a bracket body is connected to an oil cylinder body in a sealing manner, and the other side of the bracket body is provided with two parallel and opposite clamp installing bases. A clamp piston is arranged in clamp piston holes of the clamp installing bases in a sealing manner. A brake pad is connected with the clamp piston. Oil distributing ways on the clamp installing bases communicate with clamp oil cavities between the clamp piston and the clamp installing bases. The side, facing the clamp oil cavities, of the clamp piston is provided with a reset sleeve. A reset gasket is arranged on the clamp piston. One end of a reset spring arranged on the reset sleeve in a sleeving manner abuts against the reset sleeve, and the other end of the reset spring arranged on the reset sleeve in the sleeving manner abuts against the reset gasket. A fixing rod installed on the clamp installing bases penetrates the reset gasket and the reset sleeve and penetrates into the clamp piston. A rectangular spring is arranged in a shaft hole of the reset sleeve and is connected with a shaft shoulder of the reset sleeve, and the rectangular spring is in interference connection with the fixing rod. The hydraulic brake clamp mechanism is compact in structure, high in brake efficiency, safe and reliable.
Description
technical field [0001] The invention relates to a hydraulic brake caliper mechanism for rail vehicles, belonging to the technical field of rail vehicle foundation braking devices. Background technique [0002] As the key executive component of rail transit vehicles, the basic brake device is an important guarantee for the safe operation of the train. The braking force is generated through the brake caliper, and the brake pads are pushed to press the brake disc to convert the kinetic energy of the train into the friction of the disc. The thermal energy realizes the brake stop of the train. Brake calipers can be divided into pneumatic calipers and hydraulic calipers according to the power source. Hydraulic clamps use hydraulic oil as the power source and have a relatively simple structure. They are used in high-speed EMUs and light rail vehicles in my country. [0003] Chinese patent document CN201071893Y discloses a hydraulic brake caliper for a high-speed train, including ...
Claims
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IPC IPC(8): F16D65/14F16D121/04
Inventor 韩红文江浪朱晔赵飞郑志立陈艾超
Owner CRRC CHANGZHOU TECH MARK IND CO LTD