A friction type automatic turning device

Abstract

The invention provides a friction type automatic turning gear which comprises a programmable control box, an electromagnetic reversing valve, a base and a bracket. The friction type automatic turning gear is characterized in that the bracket is hinged to the base, a connection rod is hinged to the upper top end of the bracket, a supporting rod is hinged to the position, behind the bracket, on the base, the upper top end of the supporting rod is connected with a stretchable air cylinder, the upper top end of a stretchable rod of the stretchable air cylinder is hinged to the tail end of the connection rod, the stretchable air cylinder is electrically connected with the electromagnetic reversing valve through a cable, the electromagnetic reversing valve is electrically connected with the programmable control box, a planet-gear speed reducer is arranged below the front end of the connection rod, the planet-gear speed reducer is provided with a friction wheel, the lower end of the planet-gear speed reducer is connected with an anti-explosion motor, and the anti-explosion motor is electrically connected with the programmable control box. By means of the friction type automatic turning gear, the investment cost is low, work efficiency is high, safety performance is high, sizing is accurate, and work is steady.

Description

technical field [0001] The invention relates to a monitoring system of an underground main drainage pump in a coal mine, in particular to a friction type automatic cranking device. Background technique [0002] At present, the main drainage pump of the mine needs to run several times a day, and the water pump needs to be turned once before each operation. Now, the water pump needs to be turned manually with a long rod tool, which not only wastes manpower, but also increases the labor intensity of workers. China Invention patent 201220336841.6 discloses a cranking device before the start of large-scale rotary power equipment, including a base, a cylinder, a guide rod, and a crank head. The disc is fixed on the cylinder, the positioning block is fixed to the crank head, the guide rod is fixed on the positioning block and slides along the guide hole of the blue disc, the crank head is at the front end of the piston rod of the cylinder and drives the flywheel of the crank to rot...

AI Technical Summary

Problems solved by technology

However, this patent also has the following disadvantages: 1. The patent is driven solely by gas, and the driving force cannot meet the needs of underground coal mines, and the control system is controlled separately; 2. The patent requires more than ten actions of the device to realize the rotation of the device. ,Time-consuming

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