Energy absorption brake for inclined shaft sports car protection device

Abstract

The invention discloses an energy absorption brake for an inclined shaft sports car protection device. The brake comprises a friction-type energy absorption component, a spring-type energy absorptioncomponent, an air cooling component and a water cooling component, the air cooling component comprises a heat dissipation fan, and the heat dissipation fan sleeves a first spline shaft; a protection cover is arranged outside the heat dissipation fan, and the protection cover is provided with an air inlet; the water cooling component comprises a heat conduction disk and a cooling disk, the heat conduction disk is arranged on the first spline shaft, and the cooling disk sleeves the heat conduction disk; a water storage cavity is formed in the cooling disk, and the water storage cavity is communicated with a water storage tank through a water inlet pipe and a water outlet pipe. According to the energy absorption brake for the inclined shaft sports car protection device, an inclined shaft sports car is braked through a friction sheet component and a ball lead screw spring component, the kinetic energy of the inclined shaft sports car is converted into friction intrinsic energy among friction sheets and elastic potential energy of springs in the ball lead screw spring component, meanwhile, braking is conducted for the second time through the spring-type energy absorption component, theair cooling component and the water cooling component can absorb the friction intrinsic energy among the friction sheets in time, and the situation is avoided that the braking effect of the friction sheets can be lowered due to the friction intrinsic energy.

Description

technical field [0001] The invention belongs to the technical field of underground safety protection devices in coal mines, and in particular relates to an energy-absorbing brake for a sports car protection device in an inclined shaft. Background technique [0002] Coal is the main energy source in our country. After the founding of the People's Republic of China, especially since the reform and opening up, my country's coal industry has developed rapidly, and its coal output has increased significantly, ranking first in the world for many years. [0003] Inclined shaft transportation is an important part of mine transportation and plays an important role in mine production. Safe and efficient inclined shaft transportation is of great significance to the safe production of coal mines. According to statistics, sports car accidents in inclined shafts account for about 22.1% of accidents in coal mine production safety and transportation. Move the inclined shaft sports car to a...

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Problems solved by technology

[0004] The patent with the application number 200720031081.7 discloses an "energy absorber". The energy absorber uses the principle of traditional friction plates to absorb energy by friction with each other to absorb the impact energy of the inclined shaft sports car on the barrier, thereby reducing the impact of the inclined shaft sports car. However, during the braking process of a single frictional energy absorber, since the inclined sports car has a large kinetic energy when it hits the barrier, the large kinetic energy is converted into a friction plate through a single frictional energy absorber. The friction internal energy between the friction plates can easily lead to a higher temperature between the friction plates, and as the temperature increases, the friction force will continue to decrease, eventually resulting in unstable friction force or even being unable to stop the inclined shaft sports car; the application number is 201320308407.1 The patent discloses a "hydraulic damping energy absorber for the protection device of inclined shaft sports car", which adopts the principle of hydraulic damping braking, that is, the steel wire rope of the damping energy absorber is connected to the barrier, the steel wire rope is stretched, and the steel wire rope bypasses the pulley assembly Stretching the piston rod of the damping cylinder, the space in the front cavity of the cylinder is reduced and the space in the rear cavity is increased. The damping oil in the front cavity flows to the rear cavity of the cylinder through the damping hole on the piston, and energy loss occurs when the damping oil flows through the damping hole, thus absorbing The kinetic energy of the mine car, but the disadvantage of the hydraulic damping energy absorber is that when the inclined shaft sports car has a large kinetic energy, the kinetic energy of the inclined shaft sports car is absorbed less, and the braking effect is poor

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