Autonomous braking structure on mine car

Abstract

The invention discloses an autonomous braking structure on a mine car. The autonomous braking structure comprises a fixed cylinder arranged at one side of a vehicle bottom wheel, a driving rod, a guide rail groove and a telescopic rod, the fixed cylinder is installed on a chassis, the guide rail groove is formed in the inner side of a hub of the wheel, the telescopic rod is arranged in the fixed cylinder, brake pads are arranged at the two ends of the guide rail groove respectively, and a traction rod is arranged between each brake pad and the end of the telescopic rod; And a driving wheel isfurther arranged on the telescopic rod, a tension spring is arranged between the driving wheel and the fixed cylinder, an annular groove is formed in the periphery of the outer circle of the driving wheel, a plug pin inserted into the chassis is arranged in the center of the driving rod, and a pin shaft arranged in the annular groove of the driving wheel is arranged at one end of the driving rod.The autonomous braking structure on the mine car changes the mode that a braking system of an old-fashioned mine car acts on the ground rail, avoids abrasion to the ground rail in long-term use, and is good in braking effect.

Description

technical field [0001] The invention relates to an autonomous braking structure on a mine car, belonging to the technical field of braking. Background technique [0002] The inclined shaft transportation of coal mines plays a very important role in the production and transportation of coal mines. The mine car is connected with the hoist by using a wire rope, and the electric motor is used as the power source to drive the hoist to control the mine car to move back and forth on the inclined shaft track of the coal mine. , in order to complete the transportation of personnel, coal, materials and gangue. The underground working environment of coal mines is complicated and transportation is inconvenient. Under the long-term production and transportation of coal, phenomena such as decoupling of mine cars and breakage of hoisting wire ropes are very likely to occur, resulting in the mine cars carrying materials rushing to the bottom of the mine at an extremely fast speed, that is, ...

AI Technical Summary

Problems solved by technology

In view of the defects of the interception braking device, there are currently a small number of anti-sports car devices for single mining cars, and the anti-sports car devices for single mining cars are divided into rail-pressing braking devices and rail-holding braking devices. In the non-braking state of the anti-car device for inclined mine cars, the brake shoes are higher than the track plane. In the braking state, the rail-pressing brake device presses the mine inclined shaft track, or the rail-holding brake device holds tightly In the inclined shaft track of coal mine, the inclined shaft mine car is higher than the track plane; both of these two braking devices have insufficient braking force, and cannot brake the inclined shaft mine car well, the braking effect is not ideal, and the use is unreliable

However, the braking effect of the rail-holding brake is on the ground track. Under long-term use, it will cause wear to the track. After the track is worn, it is easy to rust and corrode, which poses a safety hazard. This problem can be avoided by increasing the cost, such as plating on the surface of the track, or increasing the thickness of the track, which virtually increases the cost of work

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