Electric control device for mining explosion-proof endless rope winch hydraulic pump station

Abstract

The invention discloses an electronic control device for a hydraulic pump station of a mining flame-proof type endless rope winch. The electronic control device is characterized in that the input end of a voltage-stabilized power source is electrically connected with a supply voltage, and a power indicator is connected between the output endpoints of the voltage-stabilized power source; one connection point of the output end of the voltage-stabilized power source is electrically connected with one connection point of a master stopping button normally-closed contact, the other connection point of the master stopping button normally-closed contact is connected with a brake-releasing relay coil, a rope-tightening relay coil, a rope-releasing relay coil, a temperature relay coil, a pressure high-point relay coil, a pressure low-point relay coil and the end points of control loops of all electromagnetic valve coils respectively, the other end points of the control loops of all electromagnetic valve coils are connected with the connection points of the coils, and the other connection points of the coils are connected with the other connection point of the voltage-stabilized power source. The electronic control device provided by the invention can realize the all-electric operation, after the pressure of a tensioning oil cylinder is set, the pressure of the tensioning oil cylinder can be automatically regulated, and the electronic control device has the function of realizing automatic brake protection in case of high oil temperature, and is mainly used for the electric control of the hydraulic pump station of the mining flame-proof type endless rope winch.

Description

technical field [0001] The invention relates to an electric control device for a hydraulic pump station of a non-polar rope winch, in particular to an electric control device for a mining flameproof type non-polar rope winch hydraulic pump station. Background technique [0002] The endless rope transportation is a new type of coal mine auxiliary transportation that has appeared in recent years and has been rapidly promoted. The endless rope transportation system includes two parts: a hydraulic pump station and an endless rope continuous tractor. The functions of the hydraulic pump station are: 1. to control the braking or loosening of the friction drum wrapped with the endless rope through the brake release cylinder; 2. to control the tension of the endless rope through the tension cylinder. [0003] The commonly used hydraulic pump station adopts a manual method to manually control each reversing valve and switch different oil circuits to realize the control of the brake cy...

AI Technical Summary

Problems solved by technology

Its disadvantages are: 1. The manual reversing valve needs to be manually operated near the platform, the degree of automation, the labor intensity is high, and it cannot be operated remotely.

2. The pressure of the tensioning cylinder cannot be adjusted automatically. The pressure of the tensioning cylinder depends on manual observation of the pressure of the pressure gauge and manual adjustment of the pressure of the tensioning cylinder.

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