Scraper Hydraulic Pump Hydraulic Brake with Scraper Retriever

Abstract

The invention provides a hydraulic brake of a scraper-type hydraulic pump with a scraper recovery device, which relates to the field of automobile brake devices, and includes a scraper recovery device. There is a rotor, the outer side of the rotor is provided with a spring sheet, the inside of the casing is provided with a scraper recovery piston at the left and right sides, a scraper is arranged between the left and right scraper recovery pistons, and the upper and lower sides of the right side of the casing are provided. The oil inlet and the oil outlet are respectively provided, and the left and right sides of the casing are provided with air passages. In the present invention, the rotor of the scraper is arranged to push and resist the rotation of the rotor of the scraper by high-pressure hydraulic oil, so as to realize the resistance braking. The hydraulic oil works in a reciprocating flow, and the hydraulic oil can flow to the cooler for cooling through the pipeline. The whole invention has a clear idea, and can quickly brake and stop the moving vehicle, ensuring driving safety and avoiding the occurrence of traffic accidents. It is safe and effective. High practicality.

Description

technical field [0001] The invention relates to the field of automobile brake devices, in particular to a hydraulic brake with a scraper type hydraulic pump and a scraper recoverer. Background technique [0002] There are two types of brakes: foot brakes and exhaust brakes. Foot brakes are used to squeeze the drum by the brake pads, and the friction prevents the drum from rotating to achieve braking. The exhaust brake is to close the exhaust pipe, increase the pressure in the cylinder, and prevent the piston from moving upward. The crankshaft rotates to achieve braking. [0003] The exhaust brake is to close the exhaust pipe. When the engine exhausts, before the bottom dead center of the piston moves upward, the exhaust valve opens, and there is no air pressure in the cylinder. In this way, the air pressure in the exhaust pipe returns to the cylinder through the exhaust valve, pushing and blocking the upward movement of the piston. The piston compresses the air up to the to...

AI Technical Summary

Problems solved by technology

[0003] The exhaust brake is to close the exhaust pipe. When the engine exhausts, before the bottom dead center of the piston moves upward, the exhaust valve opens, and there is no air pressure in the cylinder. In this way, the air pressure in the exhaust pipe returns to the cylinder through the exhaust valve, pushing and blocking the upward movement of the piston. The piston compresses the air up to the top dead center, the intake valve is opened and the exhaust valve is also open, so that the high-pressure gas in the cylinder and exhaust pipe will be released through the intake and exhaust valves, and there will be no high-pressure gas to push the piston Upward movement, so the braking effect of the exhaust brake is not good, and the car cannot be stopped

When the vehicle goes down a long slope, the speed of the vehicle is too fast to brake, so the brake pads and the drums can only be rubbed against the brakes to slow down the speed of the vehicle. When the brakes are released, the brakes will be braked as long as the speed of the vehicle is fast. The brake pads and the drums are high-strength The friction will cause heat, because the heat dissipation of the wheel drum and the brake pads is not good, and the heat will accumulate. After a few times of braking, the wheel drum and the brake pads will be so hot that there is no friction, and the brakes will also fail when they are hot. At present, the heat dissipation of the wheel drums is done by the driver installing a water tank on the car and spraying water on the wheel drums to dissipate heat. This is also dangerous, because the wheel drums are made of iron. It will shrink, deform and crack, and the friction between the deformed wheel drum and the brake pad is poor, and the braking force is not good.

The wheel drum is cracked and there is no braking force, and the brakes are also out of order. We all know that there are many traffic accidents caused by car crashes and fatalities due to brake failure on downhill slopes. The air brake is pushed by the air, the air is compressible, and there is no high-pressure air, so the resistance is poor

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