CN110884978B - Device and method for testing tension of steel wire rope of mining friction type elevator - Google Patents
Device and method for testing tension of steel wire rope of mining friction type elevator Download PDFInfo
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- CN110884978B CN110884978B CN201911192533.3A CN201911192533A CN110884978B CN 110884978 B CN110884978 B CN 110884978B CN 201911192533 A CN201911192533 A CN 201911192533A CN 110884978 B CN110884978 B CN 110884978B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
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Abstract
The invention discloses a tension testing device and method for a steel wire rope of a mining friction type elevator, wherein a cross beam is arranged on a support in a stretching mode, a telescopic supporting leg is arranged on the support, a slide rail is transversely arranged on the cross beam, a plurality of positioning holes are uniformly distributed on the slide rail along the extending direction of the slide rail, a base is arranged on the slide rail in a sliding mode, a limiting hole is arranged on the base corresponding to the positioning holes, positioning pins are inserted into the positioning holes and the limiting hole, the base is provided with a thrust device which comprises a scissor type telescopic arm and a non-elastic knocking hammer arranged at the end part of the scissor type telescopic arm, a plurality of steel balls are filled in the non-elastic knocking hammer, the thrust device is driven by electromagnetic control, a wireless acceleration sensor is adsorbed on a steel wire rope of the friction type lifter by magnetic force, and the outside is fixed and clamped through a sensor protection clamp, and the wireless acceleration sensor sends data to the data processing system through wireless. The invention can improve the testing efficiency.
Description
Technical Field
The invention relates to the technical field of coal mine production, in particular to a device and a method for testing tension of a steel wire rope of a mining friction type hoister.
Background
The friction type hoister is common equipment in coal mine production, is particularly commonly used for hoisting and carrying production personnel and equipment, and once a fault occurs, serious consequences such as economic loss, even casualties and the like can be caused. In various safety accidents, steel wire rope scrap and even rope breakage accidents frequently occur due to the fact that abrasion is increased due to unbalanced tension. In addition, the uneven wear of the rope grooves of the liner can be caused due to the unbalanced tension, and the production efficiency is greatly influenced after the rope grooves are turned frequently until the liner is replaced.
In the prior art, the method for testing the tension of the steel wire rope mainly comprises the following steps: the other method is to arrange a pressure sensor in a balance oil cylinder for rope adjustment to calculate the tension of a steel wire rope, wherein the publication number is CN104502011A and discloses a multi-rope hoist steel wire rope tension monitoring device, and the publication number is CN208631859U and discloses a multi-rope-way skip cage steel wire rope tension detecting device. The method is characterized in that an oil pressure sensor is installed in a rope adjusting oil cylinder, and the tension of a steel wire rope is calculated through signals transmitted back to the well. However, due to machining errors of the lifting device, the displacement of the steel wire rope in each movement is different under continuous movement, and the oil cylinder works at the upper limit and the lower limit to cause measurement errors. The other method is a three-point bending method, for example, the publication No. CN109230937A discloses a steel wire rope tension on-line monitoring device, the application No. 200810185697.9 discloses a rope tension measuring device, and the method has high requirements on installation position, precision and transverse displacement of a middle force application point, so that the measurement precision is difficult to be stably ensured. The steel wire rope tension testing method and the device thereof adopt a mathematical model which takes the dead weight of the steel wire rope into consideration, the measurement precision is improved compared with that of the traditional vibration wave method, but a single steel wire rope is used for testing in the testing process, the working efficiency is lower, and the vertical striking mode and the hardware structure of the device are not described. The method has high requirements on installation precision and reliability, influences on a lifting system, or has low accuracy, and cannot fully meet the requirement of a coal mine enterprise on the tension test of the steel wire rope in the actual routing inspection.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the tension testing device and method for the steel wire rope of the mining friction type elevator are provided, so that the tension testing device and method for the steel wire rope of the friction type elevator are convenient, effective, easy to implement, safe and reliable, and the purpose of improving the efficiency is achieved.
The invention provides a tension testing device and a method for a steel wire rope of a mining friction type elevator, which are used for realizing the aim of the invention, and comprise a bracket, a wireless acceleration sensor, a sensor protection clamp and a data processing system, wherein a cross beam is arranged on the bracket in a stretching way, the bracket is provided with a telescopic supporting leg, the telescopic supporting leg is provided with position adjusting holes at positions 1.2m, 1.5m and 1.8m away from the bottom end surface, a slide rail is transversely arranged on the cross beam, a plurality of positioning holes are uniformly distributed on the slide rail along the extending direction of the slide rail, a base is arranged on the slide rail in a sliding way, a limiting hole is arranged on the base corresponding to the positioning holes, positioning pins are inserted in the positioning holes and the limiting holes so as to limit the position of the base, a thrust device is arranged on the base, the thrust device comprises a scissor type telescopic arm and a non, the non-elastic knocking hammer is internally filled with a plurality of steel balls, the thrust device is driven by electromagnetic control, the wireless acceleration sensor is adsorbed on a steel wire rope of the friction type hoister by magnetic force, the outside of the wireless acceleration sensor is fixedly clamped by a sensor protection clamp, and the wireless acceleration sensor wirelessly sends data to a data processing system.
As a further improvement of the scheme, the scissor type telescopic arms are provided with two groups, and a plurality of connecting rods are arranged between the hinged points of the two groups of scissor type telescopic arms.
As a further improvement of the scheme, the upper end of the scissor type telescopic arm close to the base is hinged with the base, and the lower end of the scissor type telescopic arm is arranged in the sliding groove of the base in a sliding mode.
As a further improvement of the scheme, the telescopic supporting legs are composed of sleeves with different pipe diameters, and every two adjacent sleeves are clamped with the grooves through balls.
As a further improvement of the scheme, the method comprises the following steps:
the method comprises the following steps: mounting the support to a position, close to a steel wire rope, below a floor of a guide wheel of the friction type elevator, and adjusting the length of the telescopic supporting leg according to field conditions so as to adjust the height of the cross beam; selecting a corresponding number of thrust devices according to the type of the tested machine, fixing the thrust devices on the cross beam through the matching of the positioning holes, the limiting holes and the positioning pins, and adjusting the distance between the thrust devices to enable the center position of the non-elastic knocking hammer to be aligned with the tested steel wire rope;
step two: adsorbing a corresponding number of wireless acceleration sensors on each tested steel wire rope, ensuring that the wireless acceleration sensors are completely wrapped in the sensor protection clamp, and locking the sensor protection clamp;
step three: and starting the switch, pushing out the non-elastic knocking hammer by each pushing device to vertically hit the steel wire rope to be tested so as to generate transverse vibration, wirelessly transmitting vibration waveform parameters to a data processing system by the wireless acceleration sensor, obtaining tension values through calculation, analyzing tension deviation of the steel wire rope to be tested, giving an adjustment suggestion, and completing the tension test of the steel wire rope of the friction type elevator.
The invention has the beneficial effects that:
compared with the prior art, the steel wire rope tension test device has the advantages that the sliding rails are arranged on the cross beam, the base provided with the thrust device slides on the sliding rails to adjust the position, the non-elastic knocking hammer corresponds to the center of the steel wire rope, the thrust device is released by starting the switch, the non-elastic knocking hammer impacts the steel wire rope to generate transverse vibration, the wireless acceleration sensor wirelessly transmits vibration waveform parameters to the data processing system, tension values are obtained through calculation, tension deviation of the steel wire rope tested is analyzed, adjustment suggestions are given, and the steel wire rope tension test of the friction type elevator is completed. The invention provides a device and a method for testing tension of a steel wire rope of a mining friction type elevator, and provides the device and the method for testing the tension of the steel wire rope of the friction type elevator, which are convenient, effective, easy to implement, safe and reliable, so that the aim of improving efficiency is fulfilled. The invention takes the current coal mine field test condition as a starting point, the test device does not need to reform the existing equipment, the lifting system is not influenced, the lifting equipment with different wire rope numbers can be adapted by increasing and decreasing the thrust device and the number of the non-elastic knocking hammers, and the disassembly and the transportation are easy. The testing method provided by the invention has the advantages of simple structure, easy implementation and strong universality, can realize quick and effective tension testing, and can obtain accurate testing results.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the thrust unit of the present invention;
fig. 3 is a schematic view of the connection between the sensor protection clamp and the steel wire rope according to the present invention.
Detailed Description
As shown in fig. 1-3, the tension testing device and method for a steel wire rope of a mining friction type elevator provided by the invention comprises a support 1, a wireless acceleration sensor 6, a sensor protection clamp 7 and a data processing system 8, wherein a cross beam 2 is arranged on the support 1 in a cross manner, the support 1 is provided with a telescopic leg, position adjusting holes are respectively arranged at the positions 1.2m, 1.5m and 1.8m away from the bottom end surface of the telescopic leg, a slide rail is transversely arranged on the cross beam 2, a plurality of positioning holes are uniformly distributed on the slide rail along the extending direction of the slide rail, a base 3 is slidably arranged on the slide rail, a limiting hole 31 is arranged on the base 3 corresponding to the positioning holes, a positioning pin is inserted into the positioning hole and the limiting hole 31 to limit the position of the base 3, a thrust device 5 is arranged on the base 3, the thrust device 5 comprises a scissor type telescopic arm 51 and a non-elastic, the non-elastic knocking hammer 4 is filled with a plurality of steel balls, and the non-elastic knocking hammer 4 is used for absorbing rebounding during knocking, has strong knocking force and does not damage the surface of the steel wire rope. The thrust device 5 is driven by electromagnetic control, the wireless acceleration sensor 6 is adsorbed on a steel wire rope of the friction type hoister by magnetic force, the outside is fixedly clamped by a sensor protection clamp 7, and the wireless acceleration sensor 6 wirelessly transmits data to a data processing system 8.
Further improve, it is provided with two sets ofly to cut flexible arm 51 of fork, is provided with a plurality of connecting rods 52 between two sets of flexible arm 51's of the fork pin joint of cutting, increases connecting rod 52 quantity, improves device bearing capacity and structural rigidity.
Further improved, the upper end of the scissor type telescopic arm 51 close to the base 3 is hinged with the base 3, and the lower end is arranged in the sliding groove 53 of the base 3 in a sliding manner.
Further improve, flexible landing leg comprises the sleeve pipe that the pipe diameter is not of uniform size, through ball and recess joint between two liang of sleeve pipes that close on.
The invention is tested by the following steps:
the method comprises the following steps: the support 1 is arranged at a position, close to a steel wire rope, below a floor of a guide wheel of the friction type elevator, and the length of the telescopic supporting leg is adjusted according to field conditions so as to adjust the height of the cross beam 2; selecting a corresponding number of thrust devices 5 according to the tested model, fixing the thrust devices 5 on the cross beam 2 through the matching of the positioning holes, the limiting holes 31 and the positioning pins, and adjusting the distance between the thrust devices 5 to enable the center position of the non-elastic knocking hammer 4 to be aligned with the tested steel wire rope;
step two: adsorbing a corresponding number of wireless acceleration sensors 6 on each tested steel wire rope, ensuring that the wireless acceleration sensors 6 are completely wrapped in a sensor protection clamp 7, and locking the sensor protection clamp 7;
step three: and starting a switch, pushing each non-elastic knocking hammer 4 out by each pushing device 5 to vertically knock on each tested steel wire rope so as to generate transverse vibration, wirelessly transmitting vibration waveform parameters to a data processing system 8 by a wireless acceleration sensor 6, obtaining each tension value through calculation, analyzing tension deviation of each tested steel wire rope, giving an adjustment suggestion, and completing the tension test of the steel wire rope of the friction type elevator.
The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.
Claims (5)
1. The utility model provides a mining friction type lifting machine wire rope tension testing arrangement which characterized in that: the device comprises a support, a wireless acceleration sensor, a sensor protection clamp and a data processing system, wherein a cross beam is arranged on the support in a stretching mode, telescopic supporting legs are arranged on the support in a stretching mode, position adjusting holes are formed in the positions, 1.2m, 1.5m and 1.8m away from the bottom end face of each telescopic supporting leg, a sliding rail is transversely arranged on the cross beam, a plurality of positioning holes are uniformly distributed in the sliding rail along the extending direction of the sliding rail, a base is arranged on the sliding rail in a sliding mode, limiting holes are formed in the base corresponding to the positioning holes, positioning pins are inserted into the positioning holes and the limiting holes so as to limit the position of the base, a thrust device is arranged on the base and comprises a scissor type telescopic arm and a non-elastic knocking hammer arranged at the end of the scissor type telescopic arm, a plurality of steel balls are filled in the non-elastic knocking hammer, the wireless acceleration sensor is adsorbed on a steel wire rope of the friction type elevator by magnetic force, the outside of the wireless acceleration sensor is fixedly clamped by a sensor protection clamp, and the wireless acceleration sensor sends data to a data processing system in a wireless mode.
2. The mining friction type hoist steel wire rope tension testing device according to claim 1, characterized in that: the scissor type telescopic arms are provided with two groups, and a plurality of connecting rods are arranged between the hinge joints of the two groups of scissor type telescopic arms.
3. The mining friction type hoist steel wire rope tension testing device according to claim 1 or 2, characterized in that: the upper end of the scissor type telescopic arm close to the base is hinged with the base, and the lower end of the scissor type telescopic arm is arranged in a sliding groove of the base in a sliding mode.
4. The mining friction type hoist steel wire rope tension testing device according to claim 1, characterized in that: the telescopic supporting legs are composed of sleeves with different pipe diameters, and every two adjacent sleeves are connected with each other through balls and grooves in a clamped mode.
5. The use method of the mining friction type hoist steel wire rope tension testing device according to claim 1, characterized in that: the method comprises the following steps:
the method comprises the following steps: mounting the support to a position, close to a steel wire rope, below a floor of a guide wheel of the friction type elevator, and adjusting the length of the telescopic supporting leg according to field conditions so as to adjust the height of the cross beam; selecting a corresponding number of thrust devices according to the type of the tested machine, fixing the thrust devices on the cross beam through the matching of the positioning holes, the limiting holes and the positioning pins, and adjusting the distance between the thrust devices to enable the center position of the non-elastic knocking hammer to be aligned with the tested steel wire rope;
step two: adsorbing a corresponding number of wireless acceleration sensors on each tested steel wire rope, ensuring that the wireless acceleration sensors are completely wrapped in the sensor protection clamp, and locking the sensor protection clamp;
step three: and starting the switch, pushing out the non-elastic knocking hammer by each pushing device to vertically hit the steel wire rope to be tested so as to generate transverse vibration, wirelessly transmitting vibration waveform parameters to a data processing system by the wireless acceleration sensor, obtaining tension values through calculation, analyzing tension deviation of the steel wire rope to be tested, giving an adjustment suggestion, and completing the tension test of the steel wire rope of the friction type elevator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911192533.3A CN110884978B (en) | 2019-11-28 | 2019-11-28 | Device and method for testing tension of steel wire rope of mining friction type elevator |
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| CN201911192533.3A CN110884978B (en) | 2019-11-28 | 2019-11-28 | Device and method for testing tension of steel wire rope of mining friction type elevator |
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| CN110884978B true CN110884978B (en) | 2021-01-19 |
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| CN112520536B (en) * | 2020-11-30 | 2021-09-21 | 中国矿业大学 | Low-temperature vibration testing device and method for steel wire rope of winding type elevator |
| CN113086808B (en) * | 2021-04-30 | 2022-05-03 | 天津市滨海新区检验检测中心 | Elevator safety monitoring mechanism and system |
| CN117561208A (en) * | 2021-07-05 | 2024-02-13 | 三菱电机楼宇解决方案株式会社 | Measurement method and measurement device |
| CN113984884B (en) * | 2021-11-03 | 2024-05-10 | 广东省特种设备检测研究院中山检测院 | Magnetic induction flaw detection device suitable for steel wire rope groups with different pitches |
| CN114923619B (en) * | 2022-04-27 | 2023-07-25 | 中北大学 | Device and method for detecting tension of steel wire rope |
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