Bracket carrier rear frame capable of quickly changing loading width and using method

Abstract

The invention belongs to the technical field of underground coal mine transport vehicles, and particularly relates to a bracket carrier rear frame capable of quickly changing the loading width and a using method. The bracket carrier rear frame comprises a front frame and a rear frame; the rear frame comprises a middle box body, rotating frames, a left bearing frame and a right bearing frame; the middle box body is in hinged connection with the front frame, the two sides of the middle box body are connected with the left bearing frame and the right bearing frame respectively, the joint face between the middle box body and the left bearing frame or the right bearing frame is fixed through positioning pins and short bolts, and a group of concave cushion blocks can be added in the middle of the joint face; the left bearing frame or the right bearing frame is fixed with the concave cushion blocks through long bolts; one rotating frame is further connected between the middle box body and theleft bearing frame, the other rotating frame is connected between the middle box body and the right bearing frame, one sides of the rotating frames are connected with the middle box body, and the other sides of the rotating frames are connected with the left bearing frame or the right bearing frame; and the inner sides of the tails of the left bearing frame and the right bearing frame are each provided with a clamping oil cylinder, and a double-ball-head pull rod is connected between the clamping oil cylinders on the two sides.

Description

technical field [0001] The invention belongs to the technical field of coal mine underground transport vehicles, in particular to a rear frame of a support transport vehicle capable of quickly changing the loading width and a use method thereof. Background technique [0002] The articulated support truck is the main equipment for the long-distance and fast transportation of the hydraulic support in the coal mine. It uses the front frame and the rear frame to steer. It can carry general downhole equipment of suitable size, and the weight of the equipment is generally 40,000kg to 100,000kg. At present, the center distances of hydraulic supports in fully mechanized coal mining face are mainly 1.5m, 1.75m, and 2.05m. Since the rear frame is an integral welded structure, the loading width of the inner crotch cannot be adjusted, so hydraulic supports with different center distances must be carried by rear frames of different widths. One support truck can be equipped with 2 to 3 r...

AI Technical Summary

Problems solved by technology

When replacing the rear frame, it is necessary to drain the hydraulic oil, disconnect the hydraulic pipes and cables, and relocate all the components on the original rear frame, resulting in a large workload for replacement, long debugging time, and high labor intensity for workers

Due to the harsh environment of coal mines, the hydraulic system is easily polluted, which reduces the reliability of the vehicle's operation

The rear frame weighs 15,000kg-30,000kg, and the replacement needs to be assisted by hoisting equipment, which has certain safety hazards when operating in a narrow underground space

At present, there is no rear frame that can quickly adjust the loading width without dismantling the pipeline and without the assistance of hoisting equipment

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