Mechanical opening parallel mechanism with sector gate for quantitative loading of skip

Abstract

The invention relates to a mechanical opening parallel mechanism with a sector gate for quantitative loading of a skip. Right and left transfer connection rods of the mechanical opening parallel mechanism are distributed on the right and left sides of a slide block; one end of each of the two transfer connection rods is articulated with the slide block; one end of a left magnifying connection rod is articulated with an intermediate left support; the other end of the left transfer connection rod is articulated with the intermediate left support; one end of a right magnifying connection rod is articulated with an intermediate right support; the other end of the right transfer connection rod is articulated with the intermediate right support; one end of a left opening connection rod is articulated with the other end of the left magnifying connection rod; one end of a right opening connection rod is articulated with the other end of the right magnifying connection rod; the other ends of the right and left opening connection rods are articulated with arc sides of a right sector side plate and a left sector side plate respectively; and a left support and a right support are arranged on outer side faces of the left sector side plate and the right sector side plate respectively, and articulated with parts near circle centers of the left sector side plate and the right sector side plate respectively. The working performance is excellent; the opening is stable; the falling back is rapid; and the maintenance is easy.

Description

technical field [0001] The invention relates to an opening parallel mechanism, in particular to a fan-shaped gate mechanical opening parallel mechanism for quantitative loading of skips. Background technique [0002] In many aspects of coal mine production, the safe and reliable operation of the mine hoisting and loading system is very important to the safe and efficient production of the mine. The quantitative loading method of skip lifting can be generally divided into two types: constant volume loading and fixed weight loading. [0003] In constant volume loading, a mechanical loading gate of the tiger's mouth type is usually used. This device is very heavy, and the opening and closing of the gate can only be realized by the counterweight, which is prone to poor coal sliding and coal stagnation. During the reset process after loading, it often collides with the skip bucket, resulting in a very large impact force, large deformation of the skip bucket, and heavy maintenanc...

AI Technical Summary

Problems solved by technology

[0003] In constant volume loading, a mechanical loading gate of the tiger's mouth type is usually used. This device is very heavy, and the opening and closing of the gate can only be realized by the counterweight, which is prone to poor coal sliding and coal stagnation.

During the reset process after loading, it often collides with the skip bucket, resulting in a very large impact force, large deformation of the skip bucket, and heavy maintenance workload of the fan gate.

At the same time, the mechanical limit is not accurate, and it is prone to non-resetting phenomenon, which seriously affects the safety and efficiency of lifting.

[0004] In the fixed-weight loading, the automatic control hydraulic system is usually used, but due to the harsh working conditions at the bottom of the coal mine, the water in the mine seriously corrodes the hydraulic system, and oil leakage is prone to occur, and the components are damaged until they fail. Therefore, the automatic control system is adopted. The reliability of the hydraulic system is not high, and the amount of daily maintenance is large

At the same time, due to the characteristics of time lag, hydraulic shock, and actuator crawling in hydraulic control, the system itself is greatly affected by the outside world, which adds a lot of difficulties to the control of the hydraulic system

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