A rear frame of a support truck capable of quickly changing the loading width and its use method

Abstract

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. It includes a front frame and a rear frame. The rear frame includes a middle box, a rotating frame, a left load frame and a right load frame. The middle box is hingedly connected with the front frame. The bearing frame is connected. The joint surface between the middle box and the left or right bearing frame is fixed by positioning pins and short bolts. A set of concave pads can be added in the middle of the joint surface. The pads are fixed by long bolts, and a rotating frame is connected between the middle box and the left and right bearing frames. One side of the rotating frame is connected with the middle box, and the other side of the rotating frame is connected with the left or right carrier. ; The inside of the tail of the left bearing frame and the right bearing frame are respectively provided with a clamping oil cylinder, and double ball head pull rods are connected between the clamping oil cylinders on both 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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