CN112284598B - Steel wire rope tension monitoring and alarming device - Google Patents
Steel wire rope tension monitoring and alarming device Download PDFInfo
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- CN112284598B CN112284598B CN202011028546.XA CN202011028546A CN112284598B CN 112284598 B CN112284598 B CN 112284598B CN 202011028546 A CN202011028546 A CN 202011028546A CN 112284598 B CN112284598 B CN 112284598B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 90
- 239000010959 steel Substances 0.000 title claims abstract description 90
- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 230000000007 visual effect Effects 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000001066 destructive effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- Business, Economics & Management (AREA)
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention belongs to the technical field of steel wire rope tension monitoring, in particular to a tension monitoring and alarming device for a traction steel wire rope in overhead power transmission engineering, which solves the technical problems in the background art and comprises a supporting plate, wherein an end rail is fixed on the supporting plate; a bearing seat is fixed on the supporting plate below the end rail, a connecting shaft is matched in the bearing seat through a linear bearing, a pressure sensor is arranged between the upper end of the connecting shaft and the lower end of the end rail, and a movable roller is arranged at the lower end of the connecting shaft; two fixed rollers are fixedly connected to the supporting plate below the movable roller; the pressure sensor is connected with an intelligent alarm device with a pressure threshold value inside. The measurement accuracy is high; the method is suitable for steel wire ropes with different thicknesses, and has strong applicability; according to the invention, the pressure of the steel wire rope can be monitored in real time in the working process of the tractor, the super-threshold reminding can be realized in time, and the operation such as adjustment and replacement of the steel wire rope can be performed in time by staff.
Description
Technical Field
The invention belongs to the technical field of steel wire rope tension monitoring, and particularly relates to a tension monitoring and alarming device for a traction steel wire rope in overhead power transmission engineering.
Background
Along with the rapid growth of national economy, the development of the power industry is rapid, the rapid development of overhead power transmission is promoted, and the installation development prospect of the power transmission line is wide. After the tower is installed, the installation of the transmission line is required. The working distance is generally 4 Km-10 Km each time, the pulley is firstly hung to the corresponding position of the tower, then the small steel wire rope is pulled by the nylon rope, the large steel wire rope is pulled by the small steel wire rope, and the multi-strand wire is pulled by the large steel wire rope until the wire is completely in place.
In order to ensure the safety of the traction process of the steel wire rope in the overhead power transmission engineering, the tension of the steel wire rope is monitored so as to ensure that the tension of the steel wire rope is within a safe traction range. Otherwise, the tensile machine can be damaged, the service life of the steel wire rope can be reduced, or the lead wire and the traction rope can be broken, so that serious safety accidents are caused.
Disclosure of Invention
The invention aims to solve the technical problems in the background technology and provides a steel wire rope tension monitoring and alarming device.
The technical means adopted for solving the technical problems are as follows: a steel wire rope tension monitoring and alarming device comprises a supporting plate, wherein an end baffle vertical to a plane where the supporting plate is positioned is fixed on the supporting plate; a connecting shaft is matched in the bearing seat through a linear bearing, the connecting shaft is perpendicular to the plane where the end block is located, a pressure sensor is arranged between the upper end of the connecting shaft and the lower end of the end block, the pressure sensor is fixedly connected with the upper end of the connecting shaft, a movable roller capable of moving up and down along with the connecting shaft is fixedly connected with the lower end of the connecting shaft, and the shaft of the movable roller is perpendicular to the supporting plate during operation; the support plate is also fixedly connected with two fixed rollers which are respectively arranged at two sides of the movable roller, and the shaft of the fixed roller is vertical to the support plate; the pressure sensor is connected with an intelligent alarm device with pressure detection and threshold setting inside; when the device works, the steel wire rope is clamped between the lowest point of the movable roller and the highest point of the two fixed rollers, and the movable roller enables the part of the steel wire rope between the two fixed rollers to form certain bending deformation. That is, when in operation, the lowest point of the movable roller is positioned below the connecting line of the highest points of the two fixed rollers.
The pressure sensor is positioned between the end block and the connecting shaft, and is equivalent to the pressure between the end block and the movable roller because the connecting shaft is connected with the movable roller, the pressure sensor can monitor the pressure between the end block and the movable roller, when the tractor works, the steel wire rope and the first fixed roller, the movable roller and the second fixed roller are in rolling friction; the two fixed rollers are positioned on one side of the steel wire rope, the movable roller is positioned on the other side of the steel wire rope, and the two fixed rollers are used for positioning and supporting the wire rope for pulling wires, because the lowest point of the movable roller is positioned below the connecting line of the highest points of the two fixed rollers, the steel wire rope can roll upward pressure on the movable roller, and the larger the tension in the steel wire rope is, the straighter the steel wire rope is, the larger the upward pressure on the movable roller is, the relation between the tension in the steel wire rope and the pressure can be obtained through a test, and the magnitude of a voltage threshold to be set can be obtained; after the pressure threshold value is set in the intelligent alarm device, the tractor starts to work, the pressure sensor monitors the pressure of the steel wire rope to the movable roller at the same time of working of the tractor, the intelligent alarm device monitors whether the pressure exceeds the voltage threshold value in real time through voltage data transmitted by the pressure sensor, and if the tension between the steel wire ropes exceeds the set pressure threshold value, the intelligent alarm device alarms to remind a worker of interrupting the wire pulling work, so that dangerous accidents are avoided. The program in the intelligent warning apparatus is an existing program and is well known to those skilled in the art. The linear bearing can realize the axial position adjustment of the movable connecting shaft and the movable roller, can weaken the torque generated by the steel wire rope in the pulling process, reduce the destructive power of the torque to the device, has the supporting and limiting functions, has small friction force between the linear bearing and the connecting shaft, and further ensures the accuracy of pulling force measurement.
Preferably, an adjusting screw parallel to the plane where the support plate is located is arranged in the end rail in a penetrating mode, the adjusting screw is in threaded fit with the end rail, the adjusting screw and the connecting shaft are located on the same straight line, and the pressure sensor is located between the lower end of the adjusting screw and the upper end of the connecting shaft. The adjusting screw can finely adjust the upper and lower positions of the movable roller, so that steel wire ropes with different thicknesses can be met, when the adjustable screw is used, after the proper position of the movable roller is adjusted by adjusting the height of the adjusting screw, screw thread locking glue is squeezed between the adjusting screw and the end rail, the position of the adjusting screw is guaranteed not to change any more, and the accuracy of measurement is guaranteed.
Preferably, the intelligent alarm device comprises an audible and visual alarm and a singlechip with data sampling, data processing and threshold comparison programs arranged inside, the output end of the pressure sensor is connected with the singlechip through a transmitter, the audible and visual alarm is connected to the output end of the singlechip, and the singlechip and the transmitter are also connected with a power supply device. The voltage threshold is obtained after the steel wire rope tension monitoring and alarming device body is calibrated through the tension machine, the pressure sensor transmits pressure data (voltage data) generated between the end rail and the connecting shaft or pressure data (voltage data) generated between the adjusting screw and the connecting shaft to the transmitter, the transmitter receives a voltage data signal and then amplifies and transmits the voltage data signal by a certain multiple to the singlechip, the singlechip samples, calculates and analyzes the analog signal and compares the analog signal with a preset threshold value, so that whether the audible and visual alarm works is controlled, if the voltage data exceeds the threshold value, the singlechip controls the audible and visual alarm to alarm, and the fact that the pressure inside the steel wire rope reaches the safe tension maximum value at the moment is needed to be adjusted immediately is explained. Specifically, the power supply device is a mobile direct current power supply device.
Preferably, the sliding structure formed by the bearing seat, the linear bearing and the connecting shaft can be replaced by a linear guide rail, the linear guide rail comprises a sliding block and a guide rail, wherein the sliding block is fixed on the supporting plate, the pressure sensor is fixedly connected with the upper end of the guide rail, and the movable roller is mounted at the lower end of the guide rail. The sliding block is fixed on the supporting plate, so that the sliding rail can linearly move up and down along the sliding block, and the high-precision smooth linear motion of the linear guide rail can be realized, so that the accuracy of tension monitoring of the device is improved.
Preferably, a pressure equalizing gasket is arranged between the pressure sensor and the adjusting screw. The pressure equalizing gasket is fixedly connected with the adjusting screw, so that the pressure of the adjusting screw to the pressure sensor can be uniformly dispersed on the whole stress surface of the pressure sensor, and the accuracy of the pressure sensor is further promoted.
Preferably, the surfaces of the movable roller and the fixed roller, which are in contact with the steel wire rope, are concave surfaces, and the arc-shaped concave surfaces are matched with the thickness of the steel wire rope. The movable roller and the fixed pulley can better contact with the steel wire rope to prevent slipping.
The beneficial effects of the invention are as follows: the operation is simple, the conception is ingenious, the manufacturing cost is low, the interference of human factors is reduced, the tension between the traction steel wire ropes is obtained by direct measurement, and the measurement accuracy is high; the method is suitable for steel wire ropes with different thicknesses, and has strong applicability; the invention can monitor the pressure of the steel wire rope in real time in the working process of the tractor, and timely realize the super-threshold reminding, so that the working personnel can timely perform the operations of adjusting and replacing the steel wire rope, thereby protecting the equipment such as the tractor, protecting the safety of the working personnel, prolonging the service life of the steel wire rope and avoiding causing major safety accidents.
Drawings
Fig. 1 is a schematic diagram of the front structure of a steel wire rope tension monitoring and alarming device according to the present invention.
Fig. 2 is a schematic side view of a steel wire rope tension monitoring and alarming device according to the present invention.
Fig. 3 is a schematic diagram of the intelligent alarm device according to the present invention.
In the figure: 1-a supporting plate; 2-end gear; 3-connecting shaft; 4-a pressure sensor; 5-a movable roller; 6-fixing rollers; 7-an intelligent alarm device; 8-adjusting a screw; 9-bearing seats; 10-linear bearings; 11-a singlechip; a 12-transmitter; 13-a power supply device; 14-flashing alarm; 15-a buzzer alarm; 16-a pressure equalizing gasket; 17-U-shaped roller frame.
Detailed Description
A steel wire rope tension monitoring and warning device according to the present invention will be described in detail with reference to fig. 1,2 and 3.
The device for monitoring and alarming the tension of the steel wire rope comprises a supporting plate 1, wherein an end baffle 2 vertical to the plane of the supporting plate 1 is fixed on the supporting plate 1 as shown in fig. 1 and 2; a bearing seat 9 is fixed on the supporting plate 1 positioned below the end rail 2, a connecting shaft 3 is matched in the bearing seat 9 through a linear bearing 10, the connecting shaft 3 is perpendicular to the plane where the end rail 2 is positioned, a pressure sensor 4 is arranged between the upper end of the connecting shaft 3 and the lower end of the end rail 2, the pressure sensor 4 is fixedly connected with the upper end of the connecting shaft 3, a movable roller 5 capable of moving up and down along with the connecting shaft 3 is fixedly connected with the lower end of the connecting shaft 3, and the shaft of the movable roller 5 is perpendicular to the supporting plate 1 during operation; the support plate 1 is also fixedly connected with two fixed rollers 6 which are respectively arranged at two sides of the movable roller 5, the shaft of the fixed roller 6 is vertical to the support plate 1, and the shaft of the fixed roller 6 is fixed on the support plate 1; the pressure sensor 4 is connected with an intelligent alarm device 7 with pressure detection and threshold setting inside, and in operation, the steel wire rope is clamped between the lowest point of the movable roller 5 and the highest point of the two fixed rollers 6, and the movable roller 5 enables the part of the steel wire rope between the two fixed rollers 6 to form certain bending deformation. That is, when in operation, the lower pressure sensor 4 positioned at the lowest point of the movable roller 5 and connected with the intelligent alarm device 7 through a data line is positioned at the highest point of the two fixed rollers 6. In a specific operation, the support plate 1 is in an inverted-T-shaped structure, namely an inverted T-shaped structure, as shown in fig. 1, wherein two fixed rollers 6 are arranged near two ends of a transverse plate body of the T-shaped structure, the end rail 2 is fixed near the end part of a longitudinal plate body of the T-shaped structure, and the limiting support seat, the connecting shaft 3 and the movable roller 5 are all positioned at the longitudinal plate body of the T-shaped structure. The fixed idler wheel 6 is fixed on the supporting plate 1 through an idler wheel shaft, the movable idler wheel 5 is supported through a U-shaped idler wheel frame 17, and the connecting shaft 3 is fixedly connected with the top of the U-shaped idler wheel frame 17 as shown in fig. 2. In the concrete implementation, the sizes of the movable roller 5 and the two fixed rollers 6 are completely consistent, and the side surfaces of the movable roller 5 and the two fixed rollers are coplanar, so that the accuracy of measurement is ensured; the lowest point of the movable roller 5 is located below the connecting line of the highest points of the two fixed rollers 6 to ensure that when the steel wire rope is clamped between the movable roller 5 and the two fixed rollers 6, the movable roller 5 can enable the steel wire rope between the fixed rollers 6 to deform downwards, and when the internal tension of the steel wire rope changes, the internal tension of the steel wire rope can resist the deformation, so that the data measured by the pressure sensor 4 changes. The linear bearing 10 can not only realize the axial position adjustment of the movable connecting shaft 3 and the movable roller 5, but also weaken the torque generated by the steel wire rope in the tensile process, reduce the destructive power of the torque to the device, and the linear bearing 10 plays the roles of supporting and limiting, and the friction between the linear bearing 10 and the connecting shaft 3 is small, so that the accuracy of the tensile force measurement is further ensured.
The pressure sensor 4 is positioned between the end block and the connecting shaft 3, because the connecting shaft 3 is connected with the movable roller 5, the pressure sensor 4 is equivalent to being positioned between the end block 2 and the movable roller 5, the pressure sensor 4 can monitor the pressure between the end block 2 and the movable roller 5, when the tractor is used, a steel wire rope sequentially passes through the first fixed roller 6, the movable roller 5 and the second fixed roller 6, and when the tractor works, rolling friction is generated between the steel wire rope and the first fixed roller 6, the movable roller 5 and the second fixed roller 6; the two fixed rollers 6 are positioned on one side of the steel wire rope, the movable roller 5 is positioned on the other side of the steel wire rope, the two fixed rollers 6 are used for positioning and supporting the wire rope for pulling wires, and because the lowest point of the movable roller 5 is positioned below the connecting line of the highest points of the two fixed rollers 6, the steel wire rope can roll upward pressure on the movable roller, and the larger the tension in the steel wire rope is, the straighter the steel wire rope is, the larger the upward pressure on the movable roller 5 is, the relation between the tension and the pressure in the steel wire rope can be obtained through a test, and the magnitude of a voltage threshold to be set can be obtained; after the voltage threshold value is set in the intelligent alarm device 7, the tractor starts to work, the pressure sensor 4 monitors the pressure of the steel wire rope to the movable roller 5 while the tractor works, the intelligent alarm device 7 monitors whether the pressure exceeds the voltage threshold value in real time through the voltage data transmitted by the pressure sensor 4, and if the tension between the steel wire ropes exceeds the set pressure threshold value, the intelligent alarm device 7 alarms to remind a worker to interrupt the wire pulling work, so that dangerous accidents are avoided. The program in the intelligent warning apparatus 7 is an existing program and is well known to those skilled in the art.
Further, as a specific embodiment of the steel wire rope tension monitoring and alarming device, as shown in fig. 1 and 2, an adjusting screw 8 parallel to the plane of the support plate 1 is inserted into the end rail 2, the adjusting screw 8 is in threaded fit with the end rail 2, the adjusting screw 8 and the connecting shaft 3 are positioned on the same straight line, and the pressure sensor 4 is positioned between the lower end of the adjusting screw 8 and the upper end of the connecting shaft 3. The adjusting screw 8 can finely adjust the upper and lower positions of the movable roller 5, so that steel wire ropes with different thicknesses can be met, when the adjustable screw is used, after the proper position of the movable roller 5 is adjusted by adjusting the height of the adjusting screw 8, screw thread locking glue is squeezed between the adjusting screw 8 and the end rail 2, the position of the adjusting screw 8 is ensured not to change any more, and the measuring accuracy is ensured.
Further, as a specific embodiment of the device for monitoring and alarming the tension of the steel wire rope, as shown in fig. 1 and 2, the limit supporting seat is a bearing seat 9, and the bearing seat 9 is matched with the connecting shaft 3 through a linear bearing 10. The linear bearing 10 can not only realize the axial position adjustment of the movable connecting shaft 3 and the movable roller 5, but also weaken the torque generated by the steel wire rope in the tensile process, reduce the destructive power of the torque to the device, and the linear bearing 10 plays the roles of supporting and limiting, and the friction between the linear bearing 10 and the connecting shaft 3 is small, so that the accuracy of the tensile force measurement is further ensured.
Further, as a specific implementation mode of the steel wire rope tension monitoring and alarming device, as shown in fig. 3, the intelligent alarming device 7 comprises an audible and visual alarm and a single-chip microcomputer 11 with a pressure threshold inside, the output end of the pressure sensor 4 is connected with the single-chip microcomputer 11 through a transmitter 12, the audible and visual alarm is connected to the output end of the single-chip microcomputer 11, and the single-chip microcomputer 11 and the transmitter 12 are also connected with a power supply device 13. The pressure threshold is obtained after the steel wire rope tension monitoring and alarming device body is calibrated through a tension machine, the pressure sensor 4 transmits pressure data and voltage data generated between the end rail 2 and the connecting shaft 3 or pressure data and voltage data generated between the adjusting screw and the connecting shaft 3 to the transmitter 12, the transmitter 12 receives a voltage data signal and then amplifies the voltage data signal by a certain multiple and transmits the voltage data signal to the singlechip 11, the singlechip 11 samples, calculates and analyzes the analog signal and compares the analog signal with a preset voltage threshold, so that whether the audible and visual alarm works is controlled, and if the voltage data exceeds the voltage threshold, the singlechip 11 controls the audible and visual alarm to alarm. Further, in the implementation process, the audible and visual alarm is formed by combining a flashing alarm 14 and a buzzer alarm 15. Specifically, the power supply device 13 is a mobile dc power supply device.
Further, as a specific embodiment of the steel wire rope tension monitoring and alarming device, a sliding structure formed by the bearing seat 9, the linear bearing 10 and the connecting shaft 3 can be replaced by a linear guide rail, wherein the linear guide rail comprises a sliding block and a guide rail, the sliding block is fixed on the supporting plate 1, the pressure sensor 4 is fixedly connected with the upper end of the guide rail, and the movable roller 5 is mounted at the lower end of the guide rail. The sliding block is fixed on the supporting plate 1, so that the sliding rail can linearly move up and down along the sliding block, and the high-precision smooth linear motion can be realized by the linear guide rail, so that the accuracy of tension monitoring of the device is improved.
Further, as a specific embodiment of the device for monitoring and alarming the tension of the steel wire rope, as shown in fig. 1 and 2, a pressure equalizing pad 16 is arranged between the pressure sensor 4 and the adjusting screw 8. The pressure equalizing gasket 16 is fixedly connected with the adjusting screw 8, so that the pressure of the adjusting screw 8 to the pressure sensor 4 can be uniformly dispersed on the whole stress surface of the pressure sensor 4, and the accuracy of the pressure sensor 4 is further promoted.
Further, as a specific embodiment of the device for monitoring and alarming the tension of the steel wire rope, as shown in fig. 2, the surfaces of the movable roller 5 and the fixed roller 6, which are in contact with the steel wire rope, are concave surfaces, and the arc-shaped concave surfaces are matched with the thickness of the steel wire rope. This is to prevent the sliding of the movable roller 5 and the fixed pulley from contacting the wire rope. In the concrete implementation, the arc concave surfaces of the movable roller 5 and the fixed roller 6 are consistent with the thickness of the steel wire rope. When the surfaces of the movable roller 5 and the fixed rollers 6, which are in contact with the steel wire rope, are arc-shaped concave surfaces, the arc-shaped concave surface at the lowest point of the movable roller 5 is positioned below an arc-shaped concave surface connecting line at the highest point of the two fixed rollers 6, so that the steel wire rope is ensured to be clamped between the movable roller 5 and the two fixed rollers 6, and the movable roller 5 can generate pressure on the steel wire rope, so that the steel wire rope is ensured to be deformed in a transmitting way.
While the above detailed construction and dimensional data have been provided for the purpose of illustrating the preferred embodiments of the present application, the present application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present application, and are intended to be included in the scope of the present application as defined in the appended claims.
Claims (8)
1. The steel wire rope tension monitoring and alarming device is characterized by comprising a supporting plate (1), wherein an end baffle (2) perpendicular to the plane of the supporting plate (1) is fixed on the supporting plate (1); a bearing seat (9) is fixed on a supporting plate (1) below the end rail (2), a connecting shaft (3) is matched in the bearing seat (9) through a linear bearing (10), the connecting shaft (3) is perpendicular to the plane where the end rail (2) is located, a pressure sensor (4) is arranged between the upper end of the connecting shaft (3) and the lower end of the end rail (2), the pressure sensor (4) is fixedly connected with the upper end of the connecting shaft (3), a movable roller (5) capable of moving up and down along with the connecting shaft (3) is installed at the lower end of the connecting shaft (3), the movable roller (5) is supported by a U-shaped roller frame (17), the connecting shaft (3) is fixedly connected with the top of the U-shaped roller frame (17), and the shaft of the movable roller (5) is perpendicular to the supporting plate (1) during operation; the support plate (1) is also fixedly connected with two fixed rollers (6) which are respectively arranged at two sides of the movable roller (5), and the shaft of the fixed roller (6) is vertical to the support plate (1); the pressure sensor (4) is connected with an intelligent alarm device (7) with pressure detection and threshold setting inside, when the intelligent alarm device works, the steel wire rope is clamped between the lowest point of the movable roller (5) and the highest point of the two fixed rollers (6), and the movable roller (5) enables the part of the steel wire rope between the two fixed rollers (6) to form certain bending deformation; the intelligent alarm device (7) comprises an audible and visual alarm and a singlechip (11) with data sampling, data processing and threshold comparison programs inside, the output end of the pressure sensor (4) is connected with the singlechip (11) through a transmitter (12), the audible and visual alarm is connected to the output end of the singlechip (11), and the singlechip (11) and the transmitter (12) are also connected with a power supply device (13).
2. The steel wire rope tension monitoring and alarming device according to claim 1, characterized in that an adjusting screw (8) parallel to the plane where the supporting plate (1) is located is arranged in the end rail (2), the adjusting screw (8) is in threaded fit with the end rail (2), the adjusting screw (8) and the connecting shaft (3) are located on the same straight line, and the pressure sensor (4) is located between the lower end of the adjusting screw (8) and the upper end of the connecting shaft (3).
3. A wire rope tension monitoring and warning device according to claim 2, characterized in that the audible and visual annunciator is composed of a flashing annunciator (14) and a buzzer annunciator (15).
4. A wire rope tension monitoring and warning device according to claim 3, characterized in that a pressure equalizing spacer (16) is arranged between the pressure sensor (4) and the adjusting screw (8).
5. The steel wire rope tension monitoring and alarming device according to claim 4, wherein the contact surfaces of the movable roller (5) and the fixed roller (6) with the steel wire rope are arc-shaped concave surfaces, and the arc-shaped concave surfaces are matched with the thickness of the steel wire rope.
6. The steel wire rope tension monitoring and alarming device according to claim 1 or 2, wherein a sliding structure consisting of a bearing seat (9), a linear bearing (10) and a connecting shaft (3) is replaced by a linear guide rail, the linear guide rail comprises a sliding block and a guide rail, wherein the sliding block is fixed on a supporting plate (1), a pressure sensor (4) is fixedly connected to the upper end of the guide rail, and a movable roller (5) is mounted to the lower end of the guide rail.
7. A wire rope tension monitoring and warning device according to claim 6, characterized in that a pressure equalizing spacer (16) is arranged between the pressure sensor (4) and the adjusting screw (8).
8. The steel wire rope tension monitoring and alarming device according to claim 7, wherein the surfaces of the movable roller (5) and the fixed roller (6) which are in contact with the steel wire rope are concave surfaces, and the arc-shaped concave surfaces are matched with the thickness of the steel wire rope.
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| CN202011028546.XA CN112284598B (en) | 2020-09-27 | 2020-09-27 | Steel wire rope tension monitoring and alarming device |
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| CN213688763U (en) * | 2020-09-27 | 2021-07-13 | 国网山西省电力公司忻州供电公司 | Steel wire rope tension monitoring and alarming device |
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| CN203382352U (en) * | 2013-06-29 | 2014-01-08 | 长治市同诚机械有限公司 | Winch cable traction pressure sensing and monitoring device |
| CN104634686B (en) * | 2015-03-10 | 2017-05-03 | 中国矿业大学 | Twisted-type hoister steel wire rope interlayer friction detection device and method |
| CN105584944B (en) * | 2016-03-04 | 2017-11-10 | 中国矿业大学 | A kind of boom hoist cable layer to layer transition detection means and method |
| KR20190076724A (en) * | 2017-12-22 | 2019-07-02 | 주식회사 포스코 | Detector of fracturing wire rope |
| CN108277740A (en) * | 2018-01-19 | 2018-07-13 | 江苏森淼工程质量检测有限公司 | A kind of bridge machinery vehicle working bench load transfinites protective device and its control method |
| CN110518495A (en) * | 2019-08-27 | 2019-11-29 | 中车四方车辆有限公司 | A kind of vehicle bottom main line traction device and traction method |
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