A three-point lifting device for underground detection

Abstract

The invention relates to a lifting device, in particular to a three-point type lifting device for down-hole detection. The three-point type lifting device comprises a driving motor, winding drums, lifting synchronous belts, synchronous belt wheels, a speed measurement encoder, a touch screen and a detection base. The driving motor drives the winding drums to rotate. The three lifting synchronous belts are wound on the three winding drums correspondingly. The synchronous belt wheels are arranged below the winding drums and matched with the lifting synchronous belts in a perpendicular manner. The lifting synchronous belts are in three-point type uniform distribution through guiding of the synchronous belt wheels. The synchronous belts are connected with the detection base at the same time so that stability of the detection base achieved in the lifting and descending processes can be improved. The speed measurement encoder is used for measuring rotating speed of the synchronous belt wheels and feeding measurement signals back to a control system. Through the driving motor, rotating speed of the winding drums is controlled in real time, so that the detection base is lifted and descended at the constant speed; and all operations of the device are completed on the touch screen. Meanwhile, the synchronous belts are adopted for replacing steel wire ropes, so that a wire arrangement mechanism for winding of the winding drums is omitted; and complexity of the lifting device is lowered.

Description

technical field [0001] The invention relates to a lifting device, in particular to a three-point lifting device for underground detection. Background technique [0002] At present, there are many devices used for underground hoisting. The existing hoisting devices are mainly composed of a drum and a wire rope. The movement speed of the wire rope and the control system do not form a closed-loop control. Therefore, there are fluctuations in the hoisting speed, and the hoisting position accuracy is difficult to control. In the existing lifting device, in order to increase the winding performance of the steel wire rope on the drum, there is generally a special cable arrangement mechanism, which makes the structure of the existing lifting device more complicated, and the device is larger in size and weight, and it is inconvenient to carry and transport. Contents of the invention [0003] The object of the present invention is to provide a three-point lifting device for downhole...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many devices used for underground hoisting. The existing hoisting devices are mainly composed of drums and wire ropes. The movement speed of the wire ropes and the control system do not form a closed-loop control. Therefore, there are fluctuations in the hoisting speed, and the hoisting position accuracy is difficult to control

In the existing lifting device, in order to increase the winding performance of the wire rope on the drum, there is generally a special cable arrangement mechanism, which makes the structure of the existing lifting device more complicated, and the device is larger in size and weight, and it is more inconvenient to carry and transport

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