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Cantilever type heading machine cutting mechanism and control system thereof

A cantilever roadheader and control system technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as over-excavation or under-excavation, affecting the progress of the excavation, and the mine is not level enough, and achieves reliable connection, easy maintenance, Life-enhancing effect

Active Publication Date: 2020-11-10
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing roadheader does not involve the function of indicating the lateral swing angle of the cutting head and controlling the swing speed. Over-excavation or under-excavation may occur during the excavation process, resulting in uneven mines and poor excavation quality, which affects the progress of excavation; Among them, the adjustment of the yaw speed is mostly adjusted by manual control, and the harsh working environment in the mine will pose a great threat to the health and safety of the tunneling operators.

Method used

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  • Cantilever type heading machine cutting mechanism and control system thereof
  • Cantilever type heading machine cutting mechanism and control system thereof

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Effect test

Embodiment 1

[0026] refer to figure 2 , an embodiment provided by the present invention: a cutting mechanism of a cantilever roadheader, including a cutting head 1, a reducer 2, and a compound power device 3, the cutting head 1 is connected to the reducer 2, and the reducer device 2 and compound power device 3, one end of the compound power device 3 is provided with a suspension arm 18, and the suspension arm 18 is equipped with a horizontal swing hydraulic cylinder 5 to drive it to swing horizontally, and the connection between the suspension arm 18 and the reducer 2 There is an up and down hydraulic cylinder 4 that drives the cutting head 1 to swing up and down.

[0027] In this embodiment, the cutting mechanism also includes a support frame 7, and the horizontal swing hydraulic cylinder 5 is hingedly arranged on the support frame 7; the lower end of the suspension arm 18 is equipped with a rotary table 6; the vertical swing hydraulic cylinder 4 is hinged on the suspension arm 18, and ...

Embodiment 2

[0030] In conjunction with embodiment 1, with reference to figure 1 , a control system for a cutting mechanism of a cantilever roadheader, including a controller 12, a pressure sensor 17 for detecting the pressure difference on both sides of a hydraulic cylinder piston, and a vertical swing for detecting the position coordinates of the cutting head and the composite speed The hydraulic cylinder displacement sensor 9 and the horizontal swing hydraulic cylinder displacement sensor 10, the current sensor 11 for detecting the cutting current of the composite power unit, the pressure sensor 17, the vertical swing hydraulic cylinder displacement sensor 9, the horizontal swing hydraulic cylinder displacement sensor 10 and the current sensor 11 are connected to the controller 12 respectively.

[0031] In this embodiment, the horizontal swing hydraulic cylinder 5 and the vertical swing hydraulic cylinder 4 are equipped with a first electro-hydraulic proportional variable hydraulic pump...

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Abstract

The invention discloses a cantilever type heading machine cutting mechanism and a control system thereof. The control system comprises a controller, a pressure sensor which is used for detecting the pressure differences between the two sides of a hydraulic cylinder piston, a vertical swing hydraulic cylinder displacement sensor and a horizontal swing hydraulic cylinder displacement sensor which are used for detecting the position coordinates and the synthetic speed of a cutting head, and a current sensor which is used for detecting the cutting current of a hybrid power device. wherein the pressure sensor, the vertical swing hydraulic cylinder displacement sensor, the horizontal swing hydraulic cylinder displacement sensor and the current sensor are connected with the controller. The cantilever type heading machine cutting mechanism and the control system thereof provided by the invention can be used for evaluating the cutting performance and predicting and distributing section coal androck properties, and the cutting efficiency is improved by 50% or above.

Description

technical field [0001] The invention belongs to the technical field of mining equipment, and in particular relates to a cutting mechanism of a cantilever roadheader and a control system thereof. Background technique [0002] The cantilever roadheader is the main equipment for tunneling in the long-arm working face of coal mines, and it is divided into two types: longitudinal axis type and horizontal axis type. Different from the shield tunneling machine currently used for the development of mountain and underground traffic tunnels, the shield tunnel boring machine uses multiple sets of disc-shaped cutters to cut rock and soil tunnels, and has the ability to cut hard rocks. For example, it is used in Europe to cross The large tunnel shield machine in the Alps; the cantilever roadheader uses many picks fixedly installed on the rotating drum to cut coal or semi-coal rock, which is suitable for coal mine underground coal roadway or soft rock roadway excavation. Due to the compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/1006E21D9/1093E21D9/1086E21D9/108
Inventor 刘若涵刘永利万丰任春平李德根
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY