CN-224231137-U - Device for indirectly measuring tension of steel wire rope by pressure sensor

Abstract

The utility model discloses a device for indirectly measuring tension of a steel wire rope by a pressure sensor, which relates to the technical field of tension measurement and comprises a guide wheel assembly, a pressure sensor and a control system, wherein the guide wheel assembly is fixed between the bottom of a roller of a hoister and a hoisting container, the pressure sensor is arranged on the guide wheel assembly, the control system is connected with the pressure sensor in a signal mode, the guide wheel assembly comprises a fixed installation frame and a rotating shaft which is rotatably arranged on the installation frame, a guide wheel is fixedly arranged on the rotating shaft, a rope groove is formed in the wheel surface of the guide wheel, the steel wire rope is clamped in the rope groove and forms a certain wrap angle with the guide wheel, the pressure sensor is arranged in the rope groove in an embedded mode, and when the steel wire rope ascends and descends, the steel wire rope can be abutted against the pressure sensor. The rotation of the guide wheel realizes the real-time monitoring and measurement of the steel wire rope, prevents accidents, and the steel wire rope is clamped in the rope groove and can be stably contacted with the pressure sensor, thereby realizing accurate measurement. During maintenance, only the pressure sensor needs to be detached for replacement, so that the equipment maintenance cost and the maintenance difficulty are reduced.

Inventors

• WANG DETANG
• TIAN QIAN
• SONG ZHONGLIANG
• WANG TAO
• DING WEIMING
• WANG CHENGJUN
• CHEN BAIHE
• Yuan Luzou
• LIU XIN
• Tian Sumiao
• SUN YI
• WU HAORAN
• YANG ZAIJUN
• HAN CHAO
• He Xipan
• GAO YUNLONG
• HAN JIAJIA

Assignees

• 山东科技大学
• 兖矿能源集团股份有限公司
• 山东信力工矿安全检测有限公司
• 山东艾德姆智能科技股份有限公司

Dates

Publication Date

20260512

Application Date

20250528

Claims (9)

1. 1. The device for indirectly measuring the tension of the steel wire rope by the pressure sensor is characterized by comprising a guide wheel assembly, a pressure sensor and a control system, wherein the guide wheel assembly is fixed between the bottom of a roller of a hoist and a lifting container, the pressure sensor is arranged on the guide wheel assembly, and the control system is in signal connection with the pressure sensor; The guide wheel assembly comprises a mounting frame used for fixing and a rotating shaft rotatably arranged on the mounting frame, wherein a guide wheel is fixedly arranged on the rotating shaft, and a rope groove is formed in the wheel surface of the guide wheel; The pressure sensor is embedded in the rope groove, and the steel wire rope can be abutted against the pressure sensor when lifting.
2. 2. The device for indirectly measuring the tension of the steel wire rope by using the pressure sensor according to claim 1, wherein a plurality of groups of the pressure sensors are uniformly arranged on the wheel surface of the guide wheel, and the plurality of groups of the pressure sensors form an annular array.
3. 3. The device for indirectly measuring the tension of a steel wire rope by using the pressure sensor according to claim 1, wherein the wrap angle is 90-150 degrees.
4. 4. The device for indirectly measuring the tension of a steel wire rope by using the pressure sensor according to claim 1, wherein when a plurality of steel wire ropes are arranged on the lifting container side by side, one steel wire rope is correspondingly provided with one guide wheel.
5. 5. The device for indirectly measuring the tension of a steel wire rope by using the pressure sensor according to claim 4, wherein a plurality of groups of guide wheels are fixedly arranged on the same rotating shaft.
6. 6. The apparatus of claim 4, wherein a plurality of sets of said guide wheels are fixedly mounted on different ones of said shafts, each shaft being rotatably mounted on a separate one of said mounting frames.
7. 7. The device for indirectly measuring the tension of the steel wire rope by the pressure sensor according to claim 6, wherein the mounting frame is mounted on the side wall of a hoistway in a vertically limited sliding manner, a driving device is further arranged on the side wall of the hoistway, the driving device drives the mounting frame to slide vertically, and the driving device is in signal connection with the control system.
8. 8. The device for indirectly measuring the tension of a steel wire rope by using the pressure sensor according to claim 7, wherein the mounting frame is fixedly arranged on a hydraulic frame, the hydraulic frame comprises a fixing frame fixed on the side wall of a hoistway and a sliding frame arranged on the fixing frame in an up-and-down sliding manner, and the driving device comprises a hydraulic device arranged between the fixing frame and the sliding frame, and the hydraulic device drives the sliding frame to slide up and down along the fixing frame; The mounting frame is fixed on the sliding frame.
9. 9. The device for indirectly measuring the tension of the steel wire rope by the pressure sensor according to claim 1, wherein a groove is formed in the bottom of the rope groove, the pressure sensor is embedded in the groove, and a fixing base used for pressing the pressure sensor in the groove is fixedly arranged on the side wall of the rope groove.

Description

Device for indirectly measuring tension of steel wire rope by pressure sensor Technical Field The utility model relates to the technical field of tension measurement, in particular to a device for indirectly measuring the tension of a steel wire rope by a pressure sensor. Background The excessive tension difference of the steel wire rope is a key factor for causing heavy accidents such as rope skipping, rope sliding, rope breakage and the like of the steel wire rope of the elevator, so that accurate measurement of the tension of the steel wire rope is important for guaranteeing the safety of a mine. The traditional steel wire rope tension measurement technology has a plurality of defects. For example, when measuring with a load cell, it is common to install a load cell at the hoist vessel connection or on the rope to directly measure the rope tension. However, the mine environment is severe, dust, high temperature, vibration and the like exist, and the factors easily lead to sensor failure or precision reduction. As another example, the rope tension is calculated by mounting a torque sensor on the drum in combination with the rotational speed, but this method requires a complex mathematical model for calibration and the measurement error is large. Disclosure of utility model The utility model aims to provide a device for indirectly measuring the tension of a steel wire rope by a pressure sensor, which realizes real-time and accurate measurement of the tension of the steel wire rope, reduces equipment maintenance cost and is convenient for measurement operation. The utility model provides a device for indirectly measuring the tension of a steel wire rope by a pressure sensor, which comprises a guide wheel assembly, a pressure sensor and a control system, wherein the guide wheel assembly is fixed between the bottom of a roller of a hoist and a lifting container, the pressure sensor is arranged on the guide wheel assembly, the control system is connected with the pressure sensor in a signal mode, the guide wheel assembly comprises a mounting frame for fixing and a rotating shaft which is rotatably arranged on the mounting frame, a guide wheel is fixedly arranged on the rotating shaft, a rope groove is formed in the wheel surface of the guide wheel, the steel wire rope is clamped in the rope groove and forms a certain wrap angle with the guide wheel, the pressure sensor is arranged in the rope groove in an embedded mode, and the steel wire rope can be abutted against the pressure sensor when lifted. By adopting the structure, the guide wheel rotates, so that the real-time monitoring and measurement of the steel wire rope are realized, accidents are prevented, and the steel wire rope is clamped in the rope groove and can be stably contacted with the pressure sensor, so that the accurate measurement is realized. During maintenance, only the pressure sensor needs to be detached for replacement, so that the equipment maintenance cost and the maintenance difficulty are reduced. Preferably, a plurality of groups of pressure sensors are uniformly arranged on the wheel surface of the guide wheel, and the plurality of groups of pressure sensors form an annular array. Through the arrangement of the structure, multi-source data complementation is realized, full circumferential stress data are acquired through the sensor array distributed in an annular mode, and measurement deviation caused by local stress concentration (such as eccentric wear and uneven contact) of a single-point sensor is avoided. The ring layout provides multi-path data support, and even if part of sensors fail (such as 2 sensors are damaged), the measured values can be reconstructed through the rest sensors, so that the paralysis of the system is avoided; preferably, the wrap angle is 90-150 degrees. By the arrangement of the structure, measurement accuracy, friction requirement and space limitation are considered. Preferably, when a plurality of steel wire ropes are arranged on the lifting container side by side, one steel wire rope is correspondingly provided with one guide wheel. Through the arrangement of the structure, the measurement of each steel wire rope is realized. Preferably, the plurality of groups of guide wheels are fixedly arranged on the same rotating shaft. By the arrangement of the structure, the integration of the device is improved. Preferably, the plurality of groups of guide wheels are fixedly arranged on different rotating shafts, and each rotating shaft is rotatably arranged on an independent mounting frame. Through the arrangement of the structure, the tension of each steel wire rope can be accurately measured, and the difference of measurement results caused by different initial tensions is avoided. Preferably, the mounting frame is arranged on the side wall of the well in a vertical limiting sliding manner, a driving device is further arranged on the side wall of the well, the driving device drives the mounting frame to slid