Brake device of fully-hydraulic-driven two-way driving trackless rubber-tyred vehicle
A trackless rubber-tyred vehicle, two-way driving technology, applied in the direction of hydraulic brake transmission, can solve the problems of braking system failure, safety accidents, etc., to achieve the effect of improving safety and improving handling capacity
Inactive Publication Date: 2012-06-20
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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Problems solved by technology
[0004] At present, for trackless rubber-tyred vehicles with two-way driving, the service braking system mainly adopts hydraulic braking and spring release, and the interlocking of the two braking systems of the main and auxiliary cabs is realized through the shuttle valve, that is, the main and auxiliary cabs can only have one The first brake system works. Once the shuttle valve is blocked or stuck, the two brake systems may all fail, which is likely to cause safety accidents;
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[0018] A brake device for a fully hydraulically driven two-way driving trackless rubber-tyred vehicle, including a hydraulic pump 3, a brake valve I5 arranged in the main cab, a brake valve II6 arranged in the passenger cab, and two pairs installed in front and rear drive valves. Four brakes on the bridge.
[0019] The brake valve is a two-position three-way manual reversing valve; the brake is a safety wet brake.
[0020] In the present invention, two brake valves are arranged between the hydraulic pump and the safety wet brake. The outlet of the hydraulic pump is connected to the P port of the No. 5 brake valve through a hydraulic rubber hose, and the A port of the No. 5 brake valve is connected to The P port of the No. 6 brake valve is connected, and the A port of the No. 6 brake valve is connected with the four safety wet brakes 7, 8, 9, and 10 through hydraulic hoses. The T ports of No. 5 brake valve and No. 6 brake valve are respectively connected with No. 1 hydraulic o...
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The invention belongs to the technical field of underground trackless rubber-tyred vehicles for coal mines, in particular to a brake device of a fully-hydraulic-driven two-way driving trackless rubber-tyred vehicle, and meets a requirement for emergency stopping of the trackless rubber-tyred vehicle in a state of emergency. The brake device comprises a hydraulic pump, a brake valve I which is arranged in a main driving cab, a brake valve II which is arranged in an auxiliary driving cab, and four brakes which are arranged on front and rear driving axles two by two, wherein an outlet of the hydraulic pump is connected with a port P of the brake valve I; a port A of the brake valve I is connected with the port P of the brake valve II; the port A of the brake valve II is respectively connected with the four brakes; and ports T of the brake valve I and the brake valve II are respectively connected with a hydraulic oil tank. The brake device has the advantages that: the safety of underground parking of the fully-hydraulic-driven two-way driving trackless rubber-tyred vehicle is improved; and the emergency handling capacity of the fully-hydraulic-driven two-way driving trackless rubber-tyred vehicle in the running process is improved.
Description
technical field [0001] The invention belongs to the technical field of underground trackless rubber-tyred vehicles in coal mines, and in particular relates to a brake device for full-hydraulic drive two-way driving trackless rubber-tyred vehicles. Background technique [0002] At present, the two-way driving trackless rubber-tyred vehicles used underground mainly adopt hydraulic machinery or "hydraulic + mechanical" in the transmission mode. The structure of the vehicle is complex and the driver's labor intensity is high. In order to simplify the structure and reduce the labor intensity of the driver, a trackless rubber-tyred vehicle with two-way driving, articulated, full-hydraulic drive and safety braking is currently being developed. 、The front frame is equipped with a main driver's cab, and the rear frame is equipped with an auxiliary driver's cab. The whole vehicle has a simple structure, infinitely variable speed, and is easy to operate. [0003] Since the braking sys...
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IPC IPC(8): B60T11/10
Inventor 杨振声陈永峰谢龙赵秀梅石涛
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP