公开(公告)号：US09909941B2

公开(公告)日：2018-03-06

申请号：US14909856

申请日：2014-05-29

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Fan Jiang ,  Zhencai Zhu ,  Wei Li ,  Guohua Cao ,  Gongbo Zhou ,  Yuxing Peng ,  Gang Shen ,  Hao Lu

IPC: G01L3/08 ,  G01L3/12

CPC classification number: G01L3/08 ,  G01L3/12

Abstract: A hoist main shaft torque monitoring device based on angle measurement, constituted primarily by a first base, a second base, a light generating unit, a shutter, and a light sensing element; the light source, a first lens, and a first optical aperture arranged in the light generating unit, as well as a second optical aperture, second lens, and light sensing element on the shutter, forming a light source generation, propagation, and reception pathway; when the elevator main shaft is subjected to a certain torque, a corresponding displacement is produced between the first optical aperture and the second optical aperture, thus measuring the change in amount of light ultimately reaching the second optical aperture so as to measure the twist angle of the rotary shaft and finally calculate the magnitude of the shaft torque. Without damaging the original equipment and foundation, the device measures the torque of the shaft at different rotational speeds. The device can measure stationary torque and torque at different rotational speeds of the shaft, without the electromagnetic field interfering with wireless transmission; the device is easy to use, maintenance costs are low, and it is of interest for widespread popularization.

公开(公告)号：US20160109341A1

公开(公告)日：2016-04-21

申请号：US14411080

申请日：2014-06-05

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Guohua Cao ,  Yandong Wang ,  Zhencai Zhu ,  Weihong Peng ,  Jinjie Wang ,  Shanzeng Liu ,  Gang Shen ,  Hao Lu

IPC: G01N3/08

CPC classification number: G01N3/08 ,  B66D1/50 ,  B66D1/605 ,  G01L5/103 ,  G01L5/108

Abstract: The present invention discloses a device and a method for detecting the tension on a guide rope of a hanging scaffold in a construction shaft. The guide rope is released by a winch, rounds over a hoisting sheave, is connected to the hanging scaffold, and then is tensioned up; the hoisting sheave is disposed at a position above the winch, and the device comprises a slide device, two tension ropes, and a pull rope, wherein, the slide device is fitted around the guide rope, the two tension ropes are fixed to the two sides of the slide device respectively and arranged parallel to the guide rope, the pull rope is fixed to the lower part of the slide device and arranged perpendicular to the guide rope. On the basis of the basic principles of mechanics, the force applied on the guide rope can be calculated indirectly according to the proportional relation between the forces applied on the tension rope and guide rope and the lengths of the ropes. The device disclosed in the present invention is simple, and the method disclosed in the present invention is skillful. The device and method are applicable to thick and thin steel wire ropes and highly universal, and are low in cost.

Abstract translation: 本发明公开了一种用于检测施工井中吊架的导绳上的张力的装置和方法。 导绳由绞车释放，绕着吊装滑轮，连接到吊架上，然后张紧; 吊装滑轮设置在绞盘上方的位置，该装置包括滑动装置，两根拉力绳和拉绳，其中，滑动装置围绕导绳安装，两根拉力绳固定于两根 滑动装置的两侧分别平行于导绳布置，拉绳固定到滑动装置的下部并垂直于导绳布置。 根据力学的基本原理，施加在导绳上的力可以根据施加在拉力绳和导绳上的力与绳索的长度之间的比例关系间接计算。 本发明公开的装置简单，本发明公开的方法是巧妙的。 该装置和方法适用于粗钢丝绳，高度通用，成本低。