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A high-speed rewinding friction lifting device for ultra-deep wells

A friction lifting and rewinding technology, applied in the direction of hoisting device, clockwork mechanism, etc., can solve the problem that the ultra-deep shaft lifting system is not suitable for high-speed and large-load lifting, etc., to reduce stress fluctuation, prolong service life, The effect of improving safety

Active Publication Date: 2020-04-03
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current ultra-deep shaft hoisting system is hardly suitable for high-speed and heavy-load hoisting. For high-speed and heavy-load hoisting systems, the stress fluctuation of the system is relatively large. In order to reduce the stress fluctuation of the system, measures to reduce the weight of the tail rope can be taken

Method used

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  • A high-speed rewinding friction lifting device for ultra-deep wells
  • A high-speed rewinding friction lifting device for ultra-deep wells
  • A high-speed rewinding friction lifting device for ultra-deep wells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 2 Shown is a floor type friction lifting system, the lifting drum 1 is located on the ground, the auxiliary guide wheel 8 and the guide wheel 2 are arranged in the derrick, and the lifting drum 1 and the rewinding drum 3 are located in the machine room.

[0036] In this case, the distance between the lifting drum 1 and the rewinding drum 3 is relatively close, and they are not in the same horizontal plane. Any wire rope 4 winds around the guide wheel 2 in the direction of A—B—C—D—E—F from one side in turn. , lifting drum 1, rewinding drum 3 and auxiliary guide wheel 8, and finally go around to the other side.

[0037] Such as image 3 As shown, in this case, the steel wire rope 4 is wound once around the drum 3 for rewinding, and the distance between the rope grooves of the drum 3 for rewinding is a constant value

Embodiment 2

[0039] Such as Figure 4 Shown is a floor type friction lifting system, the lifting drum 1 is located on the ground, the auxiliary guide wheel 8, the guide wheel 2 and the rewinding drum 3 are arranged in the derrick, and the lifting drum 1 is located in the machine room.

[0040] In this case, the distance between the hoisting drum 1 and the rewinding drum 3 is relatively far, and they are not in the same horizontal plane. Any one wire rope 4 is wound in the direction of A—B—C—D—E—F—G—H in turn from one side. After the guide wheel 2, the lifting drum 1, the rewinding drum 3 and the auxiliary guide wheel 8, it winds to the other side at last. In order to increase the wrapping angle, the lifting drum 1 and the rewinding drum 3 are repeatedly wound.

[0041] Such as Figure 5 As shown, in this case, the wire rope 4 is wound twice around the drum 3 for rewinding, and the enveloping angle formed is twice that of Embodiment 1, and the distance between the rope grooves of the drum...

Embodiment 3

[0043] Such as Figure 6 Shown is a floor-type friction lifting system, the lifting drum 1 is located on the ground, the guide wheel 2 and the auxiliary guide wheel 8 are arranged in the derrick, and the lifting drum 1 and the rewinding drum 3 are located in the machine room.

[0044] In this case, the distance between the hoisting drum 1 and the rewinding drum 3 is relatively close, and in the same horizontal plane, any wire rope 4 is guided along the direction of A—B—C—D—E—F—G from one side. Wheel 2, lifting drum 1, rewinding drum 3 and auxiliary guide wheel 8, and finally winds to the other side.

[0045] Such as Figure 7 As shown, in this case, the steel wire rope 4 is wound around the drum 3 for rewinding once, and the distance between the grooves of the drum 3 for rewinding is a constant value:

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Abstract

The invention discloses an ultra-deep well large-load high-speed multiple winding type friction lifting device comprising a lifting roller, a guide wheel, a multiple winding roller and wire ropes. Thewire ropes are driven by the lifting roller. One ends of the wire ropes sequentially pass through the multiple winding roller and an auxiliary guide wheel and then are connected with a second container. If the position of the guide wheel is higher than that of the lifting roller, the other end of the wire ropes are wound around the guide wheel and then are connected with a first container, and the position of the guide wheel is higher than that of the auxiliary guide wheel, otherwise, the other ends of the wire ropes are directly connected with the first container. Each wire rope is repeatedly wound around the multiple winding roller so as to enlarge the surrounding angle of a system, thus multiple winding type friction lifting of the system is achieved, the multiple winding roller deflects by a certain angle relative to the axis of the lifting roller so as to ensure the wire ropes wound in a roller rope groove are parallel to an annular rope groove, and transverse acting force is notgenerated.

Description

technical field [0001] The invention relates to a heavy-load, high-speed double-winding friction lifting system suitable for ultra-deep wells, which belongs to the ultra-deep shaft lifting technology. Background technique [0002] The current ultra-deep shaft hoisting system is hardly suitable for high-speed and heavy-load hoisting. For the high-speed and heavy-load hoisting system, the stress fluctuation of the system is relatively large. In order to reduce the stress fluctuation of the system, measures to reduce the weight of the tail rope can be taken. Compared with the general shaft hoisting system, when the weight of the hoisting wire rope is constant, the frictional traction capacity of the system can be increased, the diameter of the tail rope and the number of wire ropes required in the hoisting system can be reduced, and the system can be reduced. Stress fluctuations can improve the safety of system operation. Contents of the invention [0003] Purpose of the inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D1/26B66D1/36B66D1/54
CPCB66D1/26B66D1/36B66D1/54
Inventor 曹国华朱真才花纯利刘善增彭维红王可张云长
Owner CHINA UNIV OF MINING & TECH