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Automatic winding and unwinding device for anti-explosion cable drum

An explosion-proof cable reel and automatic retractable technology, which is applied in the field of cable retraction, can solve the problems that cannot be directly applied, and achieve the effects of improving equipment working efficiency, simplifying operating procedures, and reducing the workload of miners

Active Publication Date: 2012-03-28
LIANYUNGANG TIANMING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional automatic cable winding mechanism generally adopts motor drive and electrical control, and there is no explosion-proof mechanism at the cable lead-in and out position. The scheme cannot be directly applied underground in coal mines

Method used

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  • Automatic winding and unwinding device for anti-explosion cable drum
  • Automatic winding and unwinding device for anti-explosion cable drum

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Embodiment Construction

[0010] A flameproof cable reel automatic retracting device, comprising a cable reel hydraulic motor 7, an oil supply pipe 11 and an oil return pipe 1 of the cable reel hydraulic motor 7, the oil supply pipe 11 is connected to a gear pump, and the oil return pipe 1 is connected to a gear pump. The oil return tank is connected, and an overflow control system 12 is installed between the oil supply pipe 11 and the oil return line 1. The overflow control system 12 includes a hydraulic control reversing valve 14 and a check valve 13 installed on the oil supply pipe. On the oil inlet side of the valve 13, there is a winding control oil circuit 2 and an oil discharge pipeline 3 connected with the oil return pipe. The high pressure relief valve 9 is installed on the winding control oil circuit 2, and a The unwinding control oil circuit 4 connected with the oil return pipe, the unwinding control oil circuit 4 is equipped with a low-pressure relief valve 8, the rewinding control oil circu...

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Abstract

The invention discloses an automatic winding and unwinding device for an anti-explosion cable drum. The device comprises a cable drum hydraulic motor, and an oil supply pipe and an oil return pipe of the cable drum hydraulic motor, wherein an overflow control system is arranged between the oil supply pipe and the oil return pipe; the overflow control system comprises a hydraulic control reversing valve and a one-way valve which is arranged on the oil supply pipe; a winding control oil pipeline and an oil leakage pipeline connected with the oil return pipe are arranged on the oil inlet side of the one-way valve; a high-pressure overflow valve is arranged on the winding control oil pipeline; an unwinding control oil pipeline connected with the oil return pipe is arranged on the oil outlet side of the one-way valve; a low-pressure overflow valve is arranged on the unwinding control oil pipeline; the winding control oil pipeline is connected at the winding control position of the hydraulic control reversing valve; the oil leakage pipeline and the unwinding control oil pipeline are connected at the unwinding control position of the hydraulic control reversing valve; and the control reversing oil inlet of the hydraulic control reversing valve is connected with the oil supply pipe of the oil outlet side of the one-way valve. The device realizes the automatic winding and unwinding of a cable, buffer and shock absorption, and overload protection, and can effectively increase the running distance of equipment, improve the running speed of the equipment, and improve the work efficiency of the equipment.

Description

technical field [0001] The invention relates to a retractable and retractable technology for cables in coal mine equipment, in particular to an automatic retractable and retractable device for flameproof cable reels. Background technique [0002] With the continuous improvement of the mechanization of coal mine equipment, large electric traction mobile equipment (such as roadheaders, continuous miners, shuttle cars, etc.) are more and more widely used in coal mines due to their advantages of energy saving, environmental protection, and high degree of integrated control. Due to the streamer structure, the operating speed and maximum operating distance of these devices are severely restricted by the performance of the cable drum. Mine cables have high voltage (1140V) and explosion-proof requirements, and their dimensions and weight are large. The traditional automatic cable winding mechanism generally adopts motor drive and electrical control, and there is no explosion-proof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H75/40B65H75/44
Inventor 卢明立刘航
Owner LIANYUNGANG TIANMING EQUIP
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