CN220351582U - Steel wire rope fracture monitoring device - Google Patents
Steel wire rope fracture monitoring device Download PDFInfo
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- CN220351582U CN220351582U CN202321547637.3U CN202321547637U CN220351582U CN 220351582 U CN220351582 U CN 220351582U CN 202321547637 U CN202321547637 U CN 202321547637U CN 220351582 U CN220351582 U CN 220351582U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 title abstract description 31
- 239000010959 steel Substances 0.000 title abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 26
- 241000446313 Lamella Species 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Abstract
The utility model discloses a wire rope fracture monitoring device, which comprises: the base plate, and the first pulley structure, the second pulley structure and the monitoring structure are arranged on the base plate; the monitoring structure is arranged between the first pulley structure and the second pulley structure, the monitoring structure comprises a first supporting plate, a second supporting plate and a middle plate, the first supporting plate and the second supporting plate are arranged on the bottom plate, the middle plate is suspended and clamped between the first supporting plate and the second supporting plate, a first pressure sensor is clamped between the first supporting plate and the middle plate, the middle plate and the second supporting plate are clamped with a second pressure sensor, and a through hole for a steel wire rope to pass through is formed in the middle plate. The device realizes the real-time monitoring of the slow fracture of the steel wire rope, has the advantages of compact structure, high precision, high reliability, low cost and the like, and has wide application prospect.
Description
Technical Field
The utility model relates to the technical field of mechanical design, in particular to a steel wire rope breakage monitoring device.
Background
The steel wire rope is a spiral rope which is formed by twisting multiple layers of steel wires into strands and then taking a rope core as the center. Because of the unique mechanical properties of steel wire ropes, the steel wire ropes are widely used in various industrial fields mainly in material handling machinery for lifting, traction, tensioning and bearing. Therefore, safety monitoring or inspection (damage or breakage) of the wire rope in practical applications is of great importance, especially in the fields of elevator traction, cranes and windlass, traction measuring robots, etc. The current main technical means is to manually and periodically inspect the steel wire rope, but the on-line operation can be interrupted, so that the efficiency is reduced, the manual error exists, and the implementation cost is high.
The automatic safety monitoring technology of the steel wire rope mainly comprises the following technical means. The first is to monitor the resistance value or other physical characteristics of both ends of the wire rope (for example, patent documents CN204038800U and CN114061817 a), and to change the resistance value when the wire rope is broken slowly or damaged internally. However, the reliability of the technical means is poor, and the technical means is only suitable for application scenes in which the steel wire rope is fixed. The second is to use a non-contact sensor such as a photoelectric switch to monitor whether or not the wire rope is broken (for example, patent documents CU203319435U and CN 203319437U), but this technique cannot monitor the slow damage process of the wire rope and has insufficient reliability. The third is to use a machine vision recognition technology (for example, patent document CN107290349 a), collect an image of the wire rope by an industrial camera and analyze the image to recognize the damage of the wire rope. Although the technology has higher precision and reliability, the technology has the problems of extremely high cost, large equipment volume, high requirement for monitoring environment and the like;
therefore, there is a need to find a design that is cost effective, simple and efficient to monitor.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model aims to provide a steel wire rope breakage monitoring device.
The specific technical scheme is as follows:
a wire rope breakage monitoring device; mainly comprises the following steps: the device comprises a bottom plate, a first pulley structure, a second pulley structure and a monitoring structure, wherein the first pulley structure, the second pulley structure and the monitoring structure are arranged on the bottom plate;
the monitoring structure set up in between the first pulley structure with the second pulley structure, the monitoring structure includes first backup pad, second backup pad and intermediate lamella, first backup pad with the second backup pad is installed on the bottom plate, the intermediate lamella unsettled clamp is located first backup pad with between the second backup pad, first backup pad with press from both sides between the intermediate lamella and be equipped with first pressure sensor, the intermediate lamella with the second backup pad presss from both sides and is equipped with second pressure sensor, the intermediate lamella is provided with the through-hole that supplies wire rope to pass.
The steel wire rope breakage monitoring device is characterized in that the first pulley structure comprises a first supporting seat, a first rotating shaft and a first pulley, the first supporting seat is arranged on the bottom plate, the first rotating shaft is arranged on the first supporting seat, the first pulley is coaxially and rotatably connected with the first rotating shaft, and a U-shaped groove is formed in the peripheral surface of the first pulley and used for allowing the steel wire rope to pass through.
The second pulley structure comprises a second supporting seat, a second rotating shaft and a second pulley, wherein the second supporting seat is arranged on the bottom plate, the second rotating shaft is arranged on the second supporting seat, the second pulley is coaxially and rotatably connected with the second rotating shaft, and a U-shaped groove is formed in the peripheral surface of the second pulley and used for allowing the steel wire rope to pass through.
The steel wire rope breakage monitoring device is characterized in that the bottom surface of the U-shaped groove of the first pulley and the bottom surface of the U-shaped groove of the second pulley are positioned at the same height with the bottom of the through hole.
The above-mentioned wire rope breakage monitoring device is also characterized in that the intermediate plate 4 is perpendicular to the bottom plate.
The steel wire rope breakage monitoring device is characterized in that the first supporting plate and the second supporting plate are connected through a fastener and are provided with pretightening force.
The steel wire rope breakage monitoring device is characterized in that the first pressure sensors and the second pressure sensors are opposite to each other one by one.
The wire rope breakage monitoring device has the characteristic that the diameter of the through hole is slightly larger than that of the wire rope.
The wire rope fracture monitoring device is characterized by further comprising a controller, wherein the first pressure sensor and the second pressure sensor are electrically connected with the controller.
The technical scheme has the positive effects that:
according to the wire rope fracture monitoring device provided by the utility model, the wire rope is gradually broken in the slow fracture process, and the broken wire is in an open state due to the internal stress of the wire rope, so that the diameter of the wire rope around the broken wire is increased. At this time, when the wire rope moves on the first pulley structure and the second pulley structure, the broken wire of the wire rope can touch or even squeeze the middle plate of the monitoring structure, and the middle plate is subjected to the extrusion force of the broken wire of the wire rope, so that the pressure of the first pressure sensor and/or the second pressure sensor is given, the more serious the broken wire of the wire rope is, the more the broken wire is, and the more the stress of the middle plate is in the movement process, so that the pressure of the first pressure sensor and/or the second pressure sensor is also higher. Setting triggering threshold values of the first pressure sensor and/or the second pressure sensor, and early warning or stopping the equipment in time before the steel wire rope is completely broken. When the wire rope does not break, the wire rope freely moves left and right on the pulleys (comprising the first pulley and the second pulley) and cannot contact the middle plate, so that the first pressure sensor and the second pressure sensor cannot change in numerical value, the device is used for realizing real-time monitoring of slow breakage of the wire rope, and the device has the advantages of compact structure, high precision, high reliability, low cost and the like, and has a very wide application prospect.
Drawings
FIG. 1 is a schematic diagram of a wire rope breakage monitoring device according to the present utility model;
fig. 2 is a schematic structural diagram of a detection structure according to the present utility model.
In the accompanying drawings: 1. a bottom plate; 2. a first pulley structure; 21. a first support base; 22. a first rotating shaft; 23. a first pulley; 3. a second pulley structure; 31. a second support base; 32. a second rotating shaft; 33. a second pulley; 4. monitoring the structure; 41. a first support plate; 411. a first perforation; 42. a second support plate; 421. a second perforation; 43. an intermediate plate; 431. a through hole; 51. a first pressure sensor; 52. a second pressure sensor; 6. a long bolt; 7. a nut; 8. a bolt; 10. a wire rope.
Detailed Description
The present utility model will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1 to 2, a wire rope breakage monitoring device is shown, comprising: the base plate 1, and a first pulley structure 2, a second pulley structure 3 and a monitoring structure 4 which are arranged on the base plate 1;
the monitoring structure 4 is arranged between the first pulley structure 2 and the second pulley structure 3, the monitoring structure 4 comprises a first supporting plate 41, a second supporting plate 42 and a middle plate 43, the first supporting plate 41 and the second supporting plate 42 are arranged on the bottom plate 1, the middle plate 43 is suspended and clamped between the first supporting plate 41 and the second supporting plate 42, a first pressure sensor 51 is clamped between the first supporting plate 41 and the middle plate 43, a second pressure sensor 52 is clamped between the middle plate 43 and the second supporting plate 42, and a through hole 431 for the steel wire rope 10 to pass through is formed in the middle plate 43.
Alternatively, the first support plate 41 and the second support plate 42 are mounted on the base plate 1 by fasteners, which may be long bolts 6 and nuts 7, for example, in this embodiment, the first support plate 41 and the second support plate 42 are fixed by the long bolts 6 and nuts 7 to ensure a pre-tightening force.
Further, as a preferred embodiment, the first pulley structure 2 includes a first supporting seat 21, a first rotating shaft 22 and a first pulley 23, the first supporting seat 21 is disposed on the base plate 1, the first rotating shaft 22 is mounted on the first supporting seat 21, the first pulley 23 is coaxially and rotatably connected with the first rotating shaft 22, and a U-shaped groove is disposed on an outer peripheral surface of the first pulley 23 for passing the wire rope 10. Alternatively, the first support seat 21 may be mounted on the base plate 1 by a fastener. Alternatively, the first support seat 21 may be mounted on the base plate 1 by welding. The first rotating shaft 22 is rotatably connected or non-rotatably connected with the first supporting seat 21 through a bearing, when the first rotating shaft 22 is in non-rotatable connection with the first supporting seat 21, the first pulley 23 can be non-rotatably connected with the first rotating shaft 22, and when the first rotating shaft 22 is non-rotatably connected with the first supporting seat 21, the first pulley 23 is rotatably connected with the first rotating shaft 22 through a bearing.
The second pulley structure 3 comprises a second supporting seat 31, a second rotating shaft 32 and a second pulley 33, wherein the second supporting seat 31 is arranged on the bottom plate 1, the second rotating shaft 32 is arranged on the second supporting seat 31, the second pulley 33 is coaxially and rotatably connected with the second rotating shaft 32, and the outer peripheral surface of the second pulley 33 is provided with a U-shaped groove for the steel wire rope 10 to pass through. Alternatively, the second support seat 31 may be mounted on the base plate 1 by fasteners. Alternatively, the second support seat 31 may be mounted on the base plate 1 by welding. The second rotating shaft 32 is rotatably connected or non-rotatably connected with the second supporting seat 31 through a bearing, when the second rotating shaft 32 is in non-rotatable connection with the second supporting seat 31, the second pulley 33 can be non-rotatably connected with the second rotating shaft 32, and when the second rotating shaft 32 is non-rotatably connected with the second supporting seat 31, the second pulley 33 is rotatably connected with the second rotating shaft 32 through a bearing.
Wherein the bottom surface of the U-shaped groove of the first pulley 23, the bottom surface of the U-shaped groove of the second pulley 33 are positioned at the same level as the bottom of the through hole 431, and the intermediate plate 43 is perpendicular to the bottom plate 1, thereby ensuring that the wire rope 10 passes vertically through the intermediate plate 43.
The first support plate 41 and the second support plate 42 are connected through fasteners and are provided with pretightening force. Alternatively, the fastener may be a screw, bolt 8 (a common bolt), or rivet, or the like.
Alternatively, the first pressure sensor 51 is disposed opposite to the second pressure sensor 52 one by one. For example, in the present embodiment, two first pressure sensors 51 and two second pressure sensors 52 are respectively provided, the two first pressure sensors 51 are designed in the vertical direction, the two second pressure sensors 52 are designed in the vertical direction, and the first pressure sensors 51 are disposed opposite to the second pressure sensors 52 one by one. Of course, the first pressure sensor 51 and the second pressure sensor 52 are each provided with three or more.
Specifically, the first supporting plate 41 is provided with a first groove for installing the first pressure sensor 51, the first pressure sensor 51 is installed in the first groove, the second supporting plate 42 is provided with a second groove for installing the second pressure sensor 52, the second pressure sensor 52 is installed in the second groove, and further, the middle plate 43 is provided with a third groove corresponding to the first groove and the second groove, so that the two ends of the first pressure sensor 51 and the second pressure sensor 52 are abutted tightly, and the first pressure sensor 51 and the second pressure sensor 52 can be prevented from falling vertically.
Preferably, the diameter of the through hole 431 is slightly larger than the diameter of the wire rope 10. The intermediate plate 43 is provided with a through hole 431, and accordingly, the first support plate 41 is provided with a first through hole 411 corresponding to the through hole 431, and the second support plate 42 is provided with a second through hole 421 corresponding to the through hole 431, and the diameters of the first through hole 411 and the second through hole 421 are much larger than the diameter of the wire rope 10. The size of the through hole 431 affects the threshold value of the breakage monitoring of the wire rope 10, and thus the diameter of the through hole 431 is designed according to the threshold value of the breakage monitoring of the wire rope 10. The through hole 431 cannot be too large, otherwise, the wire rope 10 cannot be extruded to the middle plate 43 when broken and the smaller the through hole 431 is, the less broken wire of the wire rope 10 will cause enough extrusion force to the middle plate 43, thereby triggering the threshold value set by the pressure sensors (including the first pressure sensor 51 and the second pressure sensor 52).
Further, the device further comprises a controller, and the first pressure sensor 51 and the second pressure sensor 52 are electrically connected with the controller.
According to the steel wire rope breakage monitoring device provided by the utility model, the steel wire rope 10 in service is placed on the first pulley structure 2 and the second pulley structure 3 and passes through the monitoring structure 4. When the wire rope is not broken, the wire rope freely moves left and right on the pulley and does not contact the middle plate 43, so that the pressure sensor does not have numerical variation; when the wire rope 10 is slowly broken, the broken wire is in an open state due to the internal stress of the wire rope 10, so that the diameter of the wire rope 10 around the broken wire becomes large. At this time, when the wire rope 10 moves left and right on the pulley, the broken wire thereof may touch and even press the intermediate plate 43, and the intermediate plate 43 receives the pressing force of the broken wire of the wire rope 10, thereby stressing the pressure sensor. The more severe the breakage of the wire rope 10, the more broken wires, the more stress the intermediate plate 43 is, and thus the more stress the pressure sensor is, during movement. And setting a triggering threshold value of the pressure sensor, and early warning or stopping the equipment in time before the steel wire rope 10 is completely broken. More specifically, when the wire rope 10 moves from left to right, the broken wire rope 10 also moves the intermediate plate 43 to the right, at which time the first pressure sensor 51 on the left becomes smaller in value and the second pressure sensor 52 on the right becomes larger in value; when the wire rope 10 moves from right to left, the pressure sensor changes in reverse. In practical application, the smaller the distance between the left side pulley and the right side pulley is, the better the distance is, and the shaking in the moving process of the steel wire rope 10 is reduced.
According to the steel wire rope fracture monitoring device provided by the utility model, the steel wire rope 10 gradually breaks in the slow fracture process, and the broken wire is in an open state due to the internal stress of the steel wire rope 10, so that the diameter of the steel wire rope 10 around the broken wire is increased. At this time, when the wire rope 10 moves on the first pulley structure 2 and the second pulley structure 3, the broken wire thereof touches and even presses the middle plate 43 of the monitoring structure 4, the middle plate 43 receives the extrusion force of the broken wire of the wire rope 10, so that the pressure is applied to the first pressure sensor 51 and/or the second pressure sensor 52, and the more serious the breakage of the wire rope 10, the more the broken wire is, the more the stress of the middle plate 43 is applied during the movement, so that the pressure is applied to the first pressure sensor 51 and/or the second pressure sensor 52. The trigger threshold of the first pressure sensor 51 and/or the second pressure sensor 52 is set, and the equipment is early warned or stopped before the steel wire rope 10 is completely broken. When the wire rope 10 is not broken, the wire rope 10 moves left and right freely on the pulley and does not contact the middle plate 43, so that the first pressure sensor 51 and the second pressure sensor 52 do not have numerical value change, the device realizes the real-time monitoring of the slow breakage of the wire rope 10, and the device has the advantages of compact structure, high precision, high reliability, low cost and the like, and has wide application prospect.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (9)
1. A wire rope breakage monitoring device, comprising: the device comprises a bottom plate, a first pulley structure, a second pulley structure and a monitoring structure, wherein the first pulley structure, the second pulley structure and the monitoring structure are arranged on the bottom plate;
the monitoring structure set up in between the first pulley structure with the second pulley structure, the monitoring structure includes first backup pad, second backup pad and intermediate lamella, first backup pad with the second backup pad is installed on the bottom plate, the intermediate lamella unsettled clamp is located first backup pad with between the second backup pad, first backup pad with press from both sides between the intermediate lamella and be equipped with first pressure sensor, the intermediate lamella with the second backup pad presss from both sides and is equipped with second pressure sensor, the intermediate lamella is provided with the through-hole that supplies wire rope to pass.
2. The wire rope breakage monitoring device according to claim 1, wherein the first pulley structure comprises a first supporting seat, a first rotating shaft and a first pulley, the first supporting seat is arranged on the bottom plate, the first rotating shaft is arranged on the first supporting seat, the first pulley is coaxially and rotatably connected with the first rotating shaft, and a U-shaped groove is formed in the outer peripheral surface of the first pulley and used for allowing the wire rope to pass through.
3. The wire rope breakage monitoring device according to claim 2, wherein the second pulley structure comprises a second supporting seat, a second rotating shaft and a second pulley, the second supporting seat is arranged on the bottom plate, the second rotating shaft is arranged on the second supporting seat, the second pulley is coaxially and rotatably connected with the second rotating shaft, and a U-shaped groove is formed in the outer peripheral surface of the second pulley and used for allowing the wire rope to pass through.
4. The wire rope breakage monitoring device according to claim 3, wherein a groove bottom surface of the U-shaped groove of the first pulley and a groove bottom surface of the U-shaped groove of the second pulley are located at the same height as a bottom of the through hole.
5. The rope breakage monitoring device of claim 4, wherein the intermediate plate is perpendicular to the base plate.
6. The wire rope breakage monitoring device according to any one of claims 1 to 5, wherein,
the first support plate and the second support plate are connected through a fastener and are provided with pretightening force.
7. The wire rope breakage monitoring device according to any one of claims 1 to 5, wherein the first pressure sensor is disposed in one-to-one opposition to the second pressure sensor.
8. The wire rope breakage monitoring device according to any one of claims 1 to 5, wherein the diameter of the through hole is slightly larger than the diameter of the wire rope.
9. The wire rope breakage monitoring device of any one of claims 1-5, further comprising a controller, wherein the first pressure sensor and the second pressure sensor are each electrically connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321547637.3U CN220351582U (en) | 2023-06-16 | 2023-06-16 | Steel wire rope fracture monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321547637.3U CN220351582U (en) | 2023-06-16 | 2023-06-16 | Steel wire rope fracture monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN220351582U true CN220351582U (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321547637.3U Active CN220351582U (en) | 2023-06-16 | 2023-06-16 | Steel wire rope fracture monitoring device |
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| Country | Link |
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| CN (1) | CN220351582U (en) |
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2023
- 2023-06-16 CN CN202321547637.3U patent/CN220351582U/en active Active
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