Device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end

Patent metadata

Field	Value
Publication number	US-10913636-B2
Application number	US-201716077981-A
Country	US
Kind code	B2
Filing date	Dec 1, 2017
Priority date	May 2, 2017
Publication date	Feb 9, 2021
Grant date	Feb 9, 2021

Abstract

The present invention discloses a device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end. The device includes two stages of steel wire rope tension adjusting devices provided on a hoisting container, where a primary steel wire rope tension adjusting device includes left and right steel wire rope tension adjusting devices that are symmetrically arranged, and a secondary steel wire rope tension adjusting device is provided below the primary steel wire rope tension adjusting device. By use of two stages of steel wire rope tension adjusting devices, tension on four steel wire ropes can be adjusted to equalize the tension, thus meeting the requirement for tension equalization in a hoisting process. The four steel wire ropes are equally divided into two groups. Tension of two steel wire ropes is adjusted by rotating a primary drum around which the two steel wire ropes are wound, and then tension of the four steel wire ropes is adjusted by rotating a secondary drum around which the multiple steel wire ropes are wound, thus achieving a final purpose. The device of the present invention has a simple structure, and is conveniently mounted and easily detached. The tension is automatically adjusted by rotating the drums. This solution is novel and has wide application.

First claim

What is claimed is:

1. A device for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end, characterized in that, comprising two stages of steel wire rope tension adjusting devices provided on a hoisting container ( 4 ), wherein a primary steel wire rope tension adjusting device comprises left and right steel wire rope tension adjusting devices that are symmetrically arranged, and the left and right steel wire rope tension adjusting devices each comprise guide rails, sliders, a spindle, connection blocks, and a drum; the guide rails, the sliders, and the connection blocks are successively symmetrically arranged on two sides of the spindle, the drum is provided on the middle portion of the spindle, two hoisting steel wire ropes are symmetrically wound around the drum, and rope head ends of the two hoisting steel wire ropes are fixed to the drum with rope head lock blocks; and a secondary steel wire rope tension adjusting device ( 3 ) is provided below the primary steel wire rope tension adjusting device, and comprises a plurality of fixed bearing pedestals, revolving shafts, and drums, wherein each revolving shaft is provided with one drum, two ends of each revolving shaft are disposed inside the fixed bearing pedestals respectively, steel wire ropes are wound around each drum, and ends of the steel wire ropes are respectively connected to the connection blocks of the primary steel wire rope tension adjusting device via steel wire rope connection devices.

2. The device for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end according to claim 1 , characterized in that, the left and right steel wire rope tension adjusting devices specifically comprise a primary left steel wire rope tension adjusting device ( 1 ) and a primary right steel wire rope tension adjusting device ( 2 ); the primary left steel wire rope tension adjusting device ( 1 ) comprises two primary left guide rails ( 1 - 1 ), two primary left sliders ( 1 - 2 ), a primary left spindle ( 1 - 3 ), primary left connection blocks ( 1 - 4 ), a first hoisting steel wire rope ( 1 - 5 ) and a second hoisting steel wire rope ( 1 - 6 ), a primary left drum ( 1 - 8 ), rope head lock blocks ( 1 - 9 ), and primary left steel wire rope connection devices ( 1 - 7 ); the primary left guide rails ( 1 - 1 ) are fastened to the hoisting container ( 4 ), and the primary left sliders ( 1 - 2 ) fit snugly to inner walls of the primary left guide rails ( 1 - 1 ); two ends of the primary left spindle ( 1 - 3 ) are fixedly connected to the primary left sliders ( 1 - 2 ) respectively, and move up and down along the primary left guide rails ( 1 - 1 ) together; the primary left drum ( 1 - 8 ) is mounted on a middle portion of the primary left spindle ( 1 - 3 ) via a bearing, and is provided with spiral grooves for the steel wire ropes and lock blocks ( 1 - 9 ) for fastening rope heads of the first hoisting steel wire rope ( 1 - 5 ) and the second hoisting steel wire rope ( 1 - 6 ); the first hoisting steel wire rope ( 1 - 5 ) is wound around the primary left drum ( 1 - 8 ) and extends upwards from a front side of the primary left drum ( 1 - 8 ), and the second hoisting steel wire rope ( 1 - 6 ) is wound around the primary left drum ( 1 - 8 ) and extends upwards from a back side of the primary left drum ( 1 - 8 ); the primary left connection blocks ( 1 - 4 ) are fastened on two sides of the primary left drum ( 1 - 8 ); and each of the primary left steel wire rope connection devices ( 1 - 7 ) is connected upwards to one of the primary left connection blocks ( 1 - 4 ) via a steel wire rope, and connected downwards to a steel wire rope which is wound around a secondary left drum ( 3 - 3 ) from a front side of the secondary left drum; and
the primary right steel wire rope tension adjusting device ( 2 ) comprises two primary right guide rails ( 2 - 1 ), two primary right sliders ( 2 - 2 ), a primary right spindle ( 2 - 3 ), primary right connection blocks ( 2 - 4 ), a third hoisting steel wire rope ( 2 - 5 ) and a fourth hoisting steel wire rope ( 2 - 6 ), a primary right drum ( 2 - 8 ), and primary right steel wire rope connection devices ( 2 - 7 ); the primary right guide rails ( 2 - 1 ) are fastened to the hoisting container ( 4 ), and the primary right sliders ( 2 - 2 ) fit snugly to inner walls of the primary right guide rails ( 2 - 1 ); two ends of the primary right spindle ( 2 - 3 ) are fixedly connected to the two primary right sliders ( 2 - 2 ) respectively, and move up and down along the primary right guide rails ( 2 - 1 ) together; the primary right drum ( 2 - 8 ) is mounted on a middle portion of the primary right spindle ( 2 - 3 ) via a bearing, and is provided with spiral grooves for the steel wire ropes and lock blocks ( 1 - 9 ) for fastening rope heads of the third hoisting steel wire rope ( 2 - 5 ) and the fourth hoisting steel wire rope ( 2 - 6 ); the third hoisting steel wire rope ( 2 - 5 ) is wound around the primary right drum ( 2 - 8 ) by four or more turns and extends upwards from a front side of the primary right drum ( 2 - 8 ), and the fourth hoisting steel wire rope ( 2 - 6 ) is wound around the primary right drum ( 2 - 8 ) by four or more turns and extends upwards from a back side of the primary right drum ( 2 - 8 ); the primary right connection blocks ( 2 - 4 ) are fastened on two sides of the primary right drum ( 2 - 8 ); and each of the primary right steel wire rope connection devices ( 2 - 7 ) is connected upwards to one of the primary right connection blocks ( 2 - 4 ) via a steel wire rope, and connected downwards to a steel wire rope which is wound around a secondary right drum ( 3 - 4 ) from a back side of the secondary right drum.

3. The device for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end according to claim 2 , characterized in that, one, two or three said primary left connection blocks ( 1 - 4 ) are provided, and each primary left connection block ( 1 - 4 ) is provided with one primary left steel wire rope connection device ( 1 - 7 ); and one, two or three said primary right connection blocks ( 2 - 4 ) are provided, and each primary right connection block ( 2 - 4 ) is provided with one primary right steel wire rope connection device ( 2 - 7 ).

4. The device for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end according to claim 2 , characterized in that, the primary left guide rails ( 1 - 1 ) and the primary right guide rails ( 2 - 1 ) are all rectangular guide rails, and the primary left sliders ( 1 - 2 ) and the primary right sliders ( 2 - 2 ) are all square blocks.

5. The device for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end according to claim 2 , characterized in that, the first hoisting steel wire rope ( 1 - 5 ) and the second hoisting steel wire rope ( 1 - 6 ) are wound around the primary left drum ( 1 - 8 ) by at least four turns, and the third hoisting steel wire rope ( 2 - 5 ) and the fourth hoisting steel wire rope ( 2 - 6 ) are wound around the primary right drum ( 2 - 8 ) by at least four turns.

6. A method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end using the device according to claim 2 , characterized in that, comprising the following steps:
(1) let a tensile force on a first hoisting steel wire rope ( 1 - 5 ) be F 1 and a tensile force on a second hoisting steel wire rope ( 1 - 6 ) be F 2 , wherein when F 1 =F 2 , a primary left drum ( 1 - 8 ) is subject to balanced forces at two sides and does not rotate; when F 1 >F 2 , a force acting on a front side of the primary left drum ( 1 - 8 ) is greater than that on a back side of the primary le

Assignees

• Univ China Mining
• Xuzhou Coal Mine Safety Equipment Mft Co Ltd

Inventors

• Cao Guohua
• Jiang Lifei
• Zhu Zhencai
• Peng Weihong
• Hua Chunli
• Zhou Gongbo
• Peng Yuxing
• Li Wei
• Feng Shizhe
• Liu Shanzeng

Classifications

• B66B7/10 Primary

  for equalising rope or cable tension · CPC title