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Electrohydraulic control system of anti-explosion hydraulic winch

An electro-hydraulic control system and hydraulic winch technology, applied in the mechanical field, can solve problems such as pressure shock, poor stability, and low automation level, and achieve the effects of reduced troubleshooting time, good speed following characteristics, and improved automation level

Inactive Publication Date: 2017-06-09
史树元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the hydraulic winch controls the flow of the system through the driver's operating handle to realize the control of the lifting and running speed of the load. It belongs to the manual open-loop control mode, and there are the following key technical problems that are difficult to solve: open-loop control, low speed regulation accuracy; Control, low level of automation, poor stability; poor coordination of driving and braking, severe pressure shock, poor reliability; lack of state monitoring system, poor safety

Method used

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  • Electrohydraulic control system of anti-explosion hydraulic winch

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Embodiment Construction

[0013] The present invention will be further described below with reference to the drawings and embodiments.

[0014] Such as figure 1 , The electro-hydraulic proportional control system adopts dual-handle control, the drive handle controls the rotation of the drive motor, and the brake handle controls the motor braking. Therefore, the brake handle can be used to adjust the braking force and braking time, which can realize the coordinated control of driving and braking. . The drive system and brake system are the core of the electro-hydraulic proportional control system of the explosion-proof hydraulic winch, including the electro-hydraulic proportional drive system and the electro-hydraulic proportional brake system.

[0015] The electro-hydraulic proportional drive system is formed by adding a drive handle, electro-hydraulic proportional pressure reducing valve, electromagnetic reversing valve, rotary encoder, amplifier 1 and controller on the basis of the original drive circuit...

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Abstract

The invention discloses an electrohydraulic control system of an anti-explosion hydraulic winch. The electrohydraulic control system is controlled by using double handles, wherein a driving motor is driven by a driving handle to rotate; the motor is controlled by a brake handle to brake; the brake power and the brake time can be adjusted by using the brake handle, and then synergic control of driving and brake can be achieved. By adopting the electrohydraulic control system, closed-loop speed adjustment, brake power adjustment and state monitoring of the anti-explosion hydraulic winch can be achieved. Due to electrohydraulic closed-loop control, the automation level of the anti-explosion hydraulic winch can be remarkably increased, the speed adjustment speed can be relatively precise, a relatively good speed following property can be achieved, and the time for eliminating faults can be remarkably shortened.

Description

Technical field [0001] The invention relates to an explosion-proof hydraulic winch electro-hydraulic control system, which is suitable for the mechanical field. Background technique [0002] Hydraulic winches are widely used in coal mines due to their superior explosion-proof performance and high power-to-mass ratio. They are the main equipment for lifting coal and gangue, lifting materials, equipment and personnel in high gas mines, and their operating conditions are good or bad. It has a major impact on coal mine safety production and efficient operation. The explosion-proof hydraulic winch commonly used in coal mines is the JKY hydraulic winch developed by my country in the 1980s. [0003] At present, hydraulic winches control the flow of the system through the driver's operating handle to control the lifting and running speed of the load. It is a manual open-loop control mode. The following key technical problems are difficult to solve: open-loop control, low speed regulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/44B66D1/48
CPCB66D1/44B66D1/48B66D2700/0183
Inventor 史树元
Owner 史树元
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