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Cage truck for underground coal mine

A technology for cages and coal mines, applied in vehicle parts, brakes, transportation and packaging, etc., can solve the problem of not being able to realize the joint control of parking brake and gear position, and achieve the effect of improving parking braking force and increasing reliability.

Active Publication Date: 2014-07-02
CHANGZHOU DEV & MFR CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot be realized that the trailer also has brakes when the tractor is in parking brake and emergency brake.
In addition, this mining explosion-proof semi-trailer cannot realize the joint control of parking brake and gear position.

Method used

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  • Cage truck for underground coal mine
  • Cage truck for underground coal mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0010] See accompanying drawing, a kind of cage car for underground coal mine is made up of tractor 21 and trailer 22. The tractor includes frame, engine, torque converter, etc.

[0011] The cage car used in the underground coal mine has parking combined braking and parking braking and gear joint control device, which includes fuel tank 1, filter 2, hydraulic pump 3, safety valve 4, tractor parking brake valve 5, tractor Parking hydraulic cylinder 6, tractor parking brake 7, hydraulic control air valve 8, first air bag 9, air control valve 10, relay valve 11, check valve 12, second air bag 13, booster 14, trailer Brake 15, shift selector valve 16-1, shift selector valve 16-2, shift select cylinder 17-1, shift cylinder 17-2;

[0012] The oil inlet of the hydraulic pump 3 is connected to the fuel tank 1 through the filter 2, the oil outlet of the hydraulic pump 3 is connected to the oil inlet P port of the parking brake valve 5 of the tractor, and the oil outlet of the parking ...

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Abstract

A cage truck for an underground coal mine comprises a tractor and a trailer and is provided with a parking joint brake and parking brake and gear jointed control device. The control device comprises an oil tank, a filter, a hydraulic pump, a tractor parking brake valve, a tractor parking hydraulic cylinder, a tractor parking brake, a hydraulic control air valve, a first air manifold, a pneumatic control valve, a relay valve, a one-way valve, a second air manifold, a booster, a trailer brake, a gear selecting reversing valve, a gearshift reversing valve, a gear selecting cylinder and a gearshift air cylinder. By the brake system, the tractor is parked and braked, the trailer is braked too, so that parking brake force is greatly improved. Reliability of parking brake of the truck on a slope is improved. Parking brake and gear jointed control is realized, gears of the truck cannot selected and shifted in the state of parking brake of the truck, the truck cannot move, and the problem that a friction plate of a parking brake is easy to wear due to gear-engaged travelling of the truck in the state of the parking brake is solved.

Description

technical field [0001] The invention relates to a cage car used in underground coal mines. Background technique [0002] Cage trucks used in underground coal mines include tractors and trailers. In coal mines that use shaft mining, personnel, equipment, and materials on the ground need to be transported to the underground through cages. The cages of various coal mines are different in size, especially in some old coal mines. You can enter after dismantling the vehicle. China Authorized Notice No. CN203268174 U utility model patent discloses a mining explosion-proof semi-trailer transport vehicle, which can quickly remove and hang the tractor and the semi-trailer, effectively solving the problem of low efficiency caused by the disintegration of the original vehicle. According to coal mine safety regulations, all vehicles in coal mines need to be equipped with working braking system, emergency braking system and parking braking system. Usually emergency braking and parking b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/20B60T13/122B60W10/10B60W10/18B60W30/00
Inventor 钟勋刘开华张秋根桑涛李庆华汪达勇马祥宁赵斌景海燕张乐文
Owner CHANGZHOU DEV & MFR CENT
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