Electronic rear axle brake valve
A brake valve and electronic control box technology, which is applied in the direction of brakes, brake components, control valves and air release valves, etc., can solve the problems of fast wear of rear brake shoes, easy heating of brake drums, and rear wheel lag. , to achieve the effect of solving the braking hysteresis
Inactive Publication Date: 2010-03-24
陈仲明
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AI Technical Summary
Problems solved by technology
[0003] Although the synchronous relay valve can speed up the braking of the rear axle, the rear axle is obviously slower than the front axle when the brake is released, which will cause serious lagging of the rear wheels
The brake shoe of the rear wheel wears quickly, the brake drum is prone to heat and wear, the speed increase after braking is slow, and the energy consumption of the vehicle increases
Method used
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[0013] Such as figure 1 with Figure 5 As shown, the present invention mainly consists of a rear axle brake valve loam cake 9, a housing 10 arranged under the loam cake and an electronic control box 11 arranged on the loam cake. The upper cover 9 is provided with a piston 13 that can move up and down, and is provided with an O-shaped rubber sealing ring 15 for sealing. The upper cover 9 is provided with a manipulation interface 1 and a manipulation cavity 5 communicating therewith. A piston return spring 14 is provided between the piston 13 and the housing 10 , and an O-shaped rubber sealing ring 16 is provided for sealing, forming an air outlet chamber 7 . The air outlet chamber 7 communicates with the air outlet port 3 and the air inlet 29 of the electromagnetic valve 12 . The outer side of the piston 13 forms a control chamber 8 with the housing 10 and the upper cover 9 , and the control chamber 8 communicates with the air outlet 30 of the electromagnetic air valve 12 . ...
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The invention discloses an electronic rear axle brake valve which consists of a shell of the brake valve, an upper cover arranged on the shell, and an electrical appliance control box positioned on the upper cover, wherein a piston and a valve are arranged between the upper cover and the shell; an exhaust hole is arranged under the valve; the side of the shell is provided with an air inlet interface and an outlet interface; the shell is internally provided with an air inlet cavity and an air outlet cavity; an operating cavity is arranged between the upper cover and the piston; the outer side of the upper cover is provided with an operating interface which is communicated with the operating cavity; and control cavities are arranged among the upper cover, the piston and the shell. The outerside of the shell is provided with an electromagnetic air valve, an air inlet hole and an air outlet hole of which are respectively communicated with the air outlet cavity and the control cavities; the electrical appliance control box is internally provided with a singlechip control box and an air pressure sensor control box which are respectively provided with a singlechip electronic control circuit and an air pressure sensor control circuit; the singlechip control box is internally provided with a singlechip, a voltage stabilizer and a comparator; and the air pressure sensor control box is internally provided with an air pressure sensor, and the control circuit is connected with a load sensing switch under an automotive frame. The electronic rear axle brake valve is applicable to trucksand large buses.
Description
technical field [0001] The invention relates to an automobile rear axle braking valve, in particular to an electronic rear axle braking valve. Background technique [0002] The rear axle brake valve belongs to a type of valve used to control the rear axle brake of an air-braked automobile. The invention relates to a rear axle brake valve, which is used to control the rear axle brake of an air-braked automobile, especially when the vehicle body is long. , Freight vehicles with large load capacity, large passenger vehicles, etc. The rear axle of the above-mentioned vehicle is relatively far away from the front of the car, and the pipeline for controlling the braking of the rear axle is relatively long, and the rear wheels will obviously lag behind the front wheels during braking. Most of the prior art of these vehicle rear axle brakes adopts relay valve to control the front and rear axle brakes for this reason, and what is placed on the front axle is the front axle relay valv...
Claims
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IPC IPC(8): B60T15/38B60T17/04
Inventor 陈仲明
Owner 陈仲明