Bolt state monitoring device

Abstract

The utility model relates to a bolt state monitoring device, and belongs to the technical field of bolt state monitoring, the bolt state monitoring device comprises a shell and a fixing piece for fixing the shell on a bolt, the shell is provided with a looseness monitoring part and a fracture monitoring part for monitoring the bolt, the fracture monitoring part comprises a moving rod which is arranged in the length direction of the bolt and is in sliding connection with the shell, and a monitoring assembly for monitoring movement of the moving rod is arranged on the shell. The bolt state monitoring device has the effects that the bolt state is monitored in time, and the adverse effect on use safety is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of bolt status monitoring, and in particular to a bolt status monitoring device. Background Art

[0002] Equipment components are usually connected by a large number of high-strength bolts and flanges that match the bolts. During the use of the equipment, the bolts at the connection between the components are prone to loosening or breaking. It is difficult for staff to monitor the status of the bolts in time, causing damage to the components, which in turn has an adverse impact on safety of use. Utility Model Content

[0003] In order to timely monitor the bolt connection status and reduce the adverse impact on safety of use, the present application provides a bolt status monitoring device.

[0004] The bolt status monitoring device provided in this application adopts the following technical solution:

[0005] A bolt status monitoring device includes a shell and a fixing part fixing the shell to the bolt, the shell is provided with a loosening monitoring part and a fracture monitoring part for monitoring the bolt, the fracture monitoring part includes a moving rod arranged along the length direction of the bolt and slidably connected to the shell, and the shell is provided with a monitoring component for monitoring the movement of the moving rod.

[0006] By adopting the above technical solution, the shell is fixed on the bolt through the fixing parts. At this time, the loosening monitoring part monitors the rotation of the bolt, and the fracture monitoring part is used to monitor the fracture of the bolt. When the bolt breaks, the moving rod moves relative to the shell. At this time, the monitoring component monitors the movement of the moving rod, thereby facilitating timely monitoring of the loosening or fracture of the bolt and reducing adverse effects on safety of use.

[0007] Optionally, the monitoring component includes a connecting rod with one end abutting against the side wall of the moving rod, the connecting rod is perpendicular to the moving rod and is slidably connected to the shell, a first spring is fixedly connected between the connecting rod and the shell, a contact is provided on the shell, when the first spring is at its original length, the connecting rod is not in contact with the contact, the moving rod is provided with a driving member for driving the connecting rod to move, and the shell is provided with a resetting member for driving the moving rod to reset.

[0008] By adopting the above technical solution, the shell is installed on the bolt through the fixing part, the driving part on the moving rod drives the connecting rod to move and contact the contact, the first spring deforms with the movement of the connecting rod, and when the bolt breaks, the reset part drives the moving rod to move and reset. At this time, the first spring restores the deformation and drives the connecting rod to disengage from the contact, which is convenient for timely monitoring of bolt breakage and reducing adverse effects on safety of use.

[0009] Optionally, the driving member includes a driving block fixedly connected to the side of the moving rod close to the connecting rod and arranged along the length direction of the moving rod. The width of the driving block parallel to the length direction of the connecting rod gradually decreases along the length direction of the moving rod. When the connecting rod abuts against the contact, the connecting rod abuts against the end of the driving block with a larger width.

[0010] By adopting the above technical solution, when the shell is installed on the bolt, the end of the connecting rod abuts against the end of the driving block with a larger width. At this time, the other end of the connecting rod contacts the contact. When the bolt breaks, the moving rod drives the driving block to move, and the first spring restores its deformation and pushes the connecting rod to move along the inclined surface of the driving block until the end of the driving block with a smaller width is level with the height of the connecting rod. At this time, the connecting rod is separated from the contact, thereby facilitating timely monitoring of the bolt status and reducing adverse effects on safety of use.

[0011] Optionally, the reset member includes a second spring which is sleeved on the moving rod and has one end fixed to the moving rod, and the other end of the second spring is fixedly connected to the shell.

[0012] By adopting the above technical solution, when the shell is installed on the bolt, the movable rod is pushed to move until the end with a larger width of the driving block is flush with the connecting rod. At this time, the second spring is compressed and the connecting rod contacts the contact. When the bolt breaks, the second spring recovers its deformation and drives the movable rod to reset, and the connecting rod disengages from the contact, thereby facilitating timely monitoring of bolt breakage and reducing adverse effects on safety of use.

[0013] Optionally, a limiting groove is provided on the side of the moving rod close to the connecting rod, and a limiting plate is provided on the shell which is slidably connected to the shell along the length direction of the connecting rod. A third spring is fixedly connected between the side of the shell close to the connecting rod and the limiting plate. When the third spring is at its original length, one end of the limiting plate is inserted into the limiting groove.

[0014] By adopting the above technical solution, when the second spring is at its original length, the end of the limit plate is inserted into the limit groove, thereby limiting the moving rod in the direction of the bolt length, reducing the possibility of damage to the second spring caused by the tension of the second spring limiting the moving rod for a long time. When installing the shell, push the limit plate in the direction close to the connecting rod until it is out of the limit groove, thereby releasing the fixation of the moving rod in the direction of the length, making it easier to install the shell on the bolt, timely monitor the breakage of the bolt, and reduce the adverse effects on safety in use.

[0015] Optionally, the looseness monitoring unit includes a gear arranged along the length direction of the bolt and rotatably connected to the shell, one side of the gear is engaged with an angle compass sleeved on the outside of the bolt, a nut is engaged on the outside of the bolt, the angle compass is fixed to the nut, a rotating shaft is passed through and fixedly connected at the center of the gear, and an angle sensor for monitoring the rotation angle of the rotating shaft is provided on the shell.

[0016] By adopting the above technical solution, the looseness monitoring part is installed on the bolt through the shell. At this time, the gear is engaged with the angle compass. When the nut is loosened, it drives the angle compass to rotate. At this time, the gear drives the rotating shaft to rotate under the drive of the angle compass. The angle sensor monitors the loosening of the nut by detecting the rotation angle of the gear, which is convenient for timely monitoring of the bolt status and reducing adverse effects on safety of use.

[0017] Optionally, a zero adjustment shaft parallel to the rotating shaft is installed on the angle sensor, a belt is installed between the zero adjustment shaft and the rotating shaft, one end of the zero adjustment shaft passes through the shell and is provided with a zero adjustment slot passing through the end of the zero adjustment shaft, a control hole for controlling the compression of the second spring is provided on the moving rod, when the shell is installed on the bolt, the second spring is compressed, the control hole is flush with the height of the zero adjustment slot, a zero adjustment rod is provided on the shell, when the shell is installed on the bolt, one end of the zero adjustment rod is inserted into the control hole, and the other end passes through the zero adjustment slot.

[0018] By adopting the above technical solution, when installing the shell, first insert the end of the zero adjustment rod into the zero adjustment slot and zero the zero adjustment shaft. After zeroing, push the moving rod to move until the control hole is flush with the zero adjustment slot. At this time, insert one end of the zero adjustment rod into the control hole and the other end through the zero adjustment slot, thereby limiting the zero adjustment shaft and the moving rod at the same time, reducing the adverse effects on accuracy during installation. When the nut is loosened and drives the gear and the rotating shaft to rotate, the belt drives the zero adjustment shaft to rotate with the rotating shaft, which is convenient for the angle sensor to detect the gear rotation angle, and convenient for timely monitoring of the component connection status, reducing the adverse effects on safety of use.

[0019] Optionally, the fixing member includes a clamp installed on a side of the shell close to the bolt and sleeved on the bolt.

[0020] By adopting the above technical solution, the clamp is sleeved on the bolt and fixed with the bolt, so that the shell is installed on the bolt and the loosening and breaking of the bolt are monitored. At the same time, it is easy to disassemble or adjust the monitoring position, thereby improving applicability.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The housing is fixed on the bolt by a fixing piece. At this time, the loosening monitoring unit monitors the rotation of the bolt, and the fracture monitoring unit is used to monitor the fracture of the bolt. When the bolt breaks, the moving rod moves relative to the housing. At this time, the monitoring component monitors the movement of the moving rod, so as to facilitate timely monitoring of the loosening or fracture of the bolt and reduce the adverse effects on the safety of use;

[0023] 2. When the housing is installed on the bolt, the end of the connecting rod abuts against the end of the driving block with a larger width. At this time, the other end of the connecting rod contacts the contact. When the bolt breaks, the moving rod drives the driving block to move, and the first spring recovers its deformation and pushes the connecting rod to move along the inclined surface of the driving block until the end of the driving block with a smaller width is flush with the height of the connecting rod. At this time, the connecting rod is separated from the contact, so as to facilitate timely monitoring of the bolt status and reduce adverse effects on safety in use;

[0024] 3. The looseness monitoring unit is installed on the bolt through the shell. At this time, the gear is engaged with the angle compass. When the nut is loose, it drives the angle compass to rotate. At this time, the gear drives the rotating shaft to rotate under the drive of the angle compass. The angle sensor monitors the looseness of the nut by detecting the gear rotation angle, which is convenient for timely monitoring of the bolt connection status and reducing adverse effects on safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the bolt status monitoring device in the embodiment of the present application.

[0026] Figure 2 It is a structural schematic diagram reflecting the positional relationship between the looseness monitoring part and the fracture monitoring part in the embodiment of the present application.

[0027] Figure 3 yes Figure 2 A magnified view of the structure in the middle.

[0028] Figure 4 It is a structural schematic diagram reflecting the position relationship between the belt and the moving rod in the embodiment of the present application.

[0029] Explanation of the reference numerals: 1. bolt; 11. flange; 12. nut; 2. housing; 21. clamp; 22. cavity; 23. connecting groove; 3. looseness monitoring unit; 31. gear; 32. angle compass; 33. rotating shaft; 34. angle sensor; 35. zeroing shaft; 351. zeroing groove; 36. belt; 4. fracture monitoring unit; 41. moving rod; 411. limiting groove; 412. control hole; 42. monitoring assembly; 421. connecting rod; 422. first spring; 423. contact; 424. driving block; 425. second spring; 5. limiting plate; 51. driving plate; 52. third spring; 6. zeroing rod. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] The present application embodiment discloses a bolt status monitoring device. Figure 1 A bolt status monitoring device includes a shell 2 located on one side of a bolt 1 on a flange plate 11 and arranged along the height direction of the bolt 1. A fixing piece fixed to the bolt 1 is provided on the side of the shell 2 close to the bolt 1. The fixing piece includes a clamp 21 that is sleeved on the end of the bolt 1 away from the flange plate 11 and fixed to the bolt 1. In the embodiment of the present application, it is set to be a throat clamp, and the side of the throat clamp close to the shell 2 is fixedly connected to the outer wall of the shell 2.

[0032] Reference Figure 1 and Figure 2 A looseness monitoring portion 3 for monitoring the looseness of the nut 12 is provided on one side of the shell 2 close to the bolt 1 , a cavity 22 is opened inside the shell 2 , and a fracture monitoring portion 4 for monitoring the fracture of the bolt 1 is provided in the cavity 22 .

[0033] The fracture monitoring part 4 includes a moving rod 41 arranged along the length direction of the shell 2 and located on one side of the shell 2. The end of the moving rod 41 close to the clamp 21 is inserted into the cavity 22 and is slidably connected to the shell 2. The end of the moving rod 41 close to the clamp 21 can pass through the side of the shell 2 away from the flange 11. A monitoring component 42 for monitoring the movement of the moving rod 41 is provided in the shell 2.

[0034] The shell 2 is fixed on the bolt 1 by the clamp 21. At this time, the loosening monitoring unit 3 monitors the rotation of the bolt 1, and the fracture monitoring unit 4 is used to monitor the fracture of the bolt 1. When the bolt 1 breaks, the moving rod 41 moves relative to the shell 2, and the monitoring component 42 monitors the movement of the moving rod 41, so as to timely monitor the loosening or fracture of the bolt 1.

[0035] The clamp 21 is sleeved on the bolt 1 and fixed to the bolt 1, so that the housing 2 is installed on the bolt 1, which is convenient for disassembly or adjustment of the monitoring position and improves applicability.

[0036] Reference Figure 2 and Figure 3 The monitoring assembly 42 includes a connecting rod 421 located on a side of the housing 2 away from the moving rod 41 and perpendicular to the moving rod 41. A connecting groove 23 adapted to the moving track of the connecting rod 421 and connected to the cavity 22 is provided in the housing 2. One end of the connecting rod 421 away from the moving rod 41 is inserted into the connecting groove 23 and slidably connected to the side wall of the housing 2. Both sides of the end of the connecting rod 421 away from the moving rod 41 are fixedly connected to the first spring 422, and one end of the first spring 422 away from the connecting rod 421 is fixedly connected to the inner wall of the housing 2.

[0037] A contact 423 is installed at one end of the connection slot 23 away from the moving rod 41, and a driving member for driving the connecting rod 421 to move and release from the contact 423 is provided on the side of the moving rod 41 close to the connecting rod 421. The driving member includes a driving block 424 fixedly connected to the side wall of the moving rod 41 and arranged along the length direction of the moving rod 41, and the side of the driving block 424 close to the connecting rod 421 is inclined in a direction away from the end of the flange 11 and close to the moving rod 41.

[0038] When the first spring 422 is at its original length, the connecting rod 421 abuts against the side wall of the end of the driving block 424 away from the flange 11. When the connecting rod 421 contacts the contact 423, the end of the connecting rod 421 abuts against the side wall of the end of the driving block 424 close to the flange 11, and the first spring 422 is compressed. A reset member for driving the moving rod 41 to reset is provided in the cavity 22. In the embodiment of the present application, the reset member is configured as a second spring 425 which is sleeved on the outer side of the end of the moving rod 41 away from the flange 11 and one end is fixedly connected to the outer side wall of the moving rod 41. The other end of the second spring 425 is fixedly connected to the inner side wall of the housing 2. When the second spring 425 is at its original length, the end of the moving rod 41 away from the flange 11 is located in the cavity 22.

[0039] The shell 2 is installed on the bolt 1 through the clamp 21, and the end of the connecting rod 421 abuts against the end of the driving block 424 with a larger width. At this time, the other end of the connecting rod 421 contacts the contact 423, and the second spring 425 is compressed. When the bolt 1 breaks, the second spring 425 restores its deformation and drives the moving rod 41 to reset and drive the driving block 424 to move. The first spring 422 restores its deformation and pushes the connecting rod 421 to move along the inclined surface of the driving block 424 until the end of the driving block 424 with a smaller width is at the same height as the connecting rod 421. At this time, the connecting rod 421 is separated from the contact 423, which is convenient for timely monitoring of the breakage of the bolt 1.

[0040] Reference Figure 1 and Figure 2 When the second spring 425 is at its original length, a limiting groove 411 is provided on one end of the moving rod 41 located in the cavity 22 and close to the connecting rod 421, and is located on the side of the second spring 425 close to the flange 11. A limiting plate 5 is provided in the cavity 22, which is adapted to the limiting groove 411 and is located on the side of the moving rod 41 close to the connecting rod 421. A driving plate 51 facing the limiting plate 5 is fixedly connected to one end of the limiting plate 5 close to the connecting rod 421, and the driving plate 51 is bent at a right angle in a direction away from the connecting rod 421, and the bent end of the driving plate 51 passes through the side wall of the housing 2 and is slidably connected to the housing 2. A third spring 52 is fixedly connected between one end of the limiting plate 5 close to the connecting rod 421 and the inner side wall of the housing 2. When the third spring 52 is at its original length, the end of the limiting plate 5 is inserted into the limiting groove 411.

[0041] When the second spring 425 is at its original length, the end of the limiting plate 5 is inserted into the limiting groove 411, limiting the moving rod 41 in the length direction of the bolt 1, thereby reducing the possibility of damage to the second spring 425 caused by the tension of the second spring 425 limiting the moving rod 41 for a long time. When installing the shell 2, the limiting plate 5 is pushed by the driving plate 51 to move in the direction close to the connecting rod 421 until it is disengaged from the limiting groove 411, thereby releasing the fixation of the moving rod 41 in the length direction, making it easier to push the moving rod 41 to move and install the shell 2 on the bolt 1.

[0042] Reference Figure 2 and Figure 4 The looseness monitoring unit 3 includes a gear 31 located on the side of the shell 2 close to the bolt 1 and arranged along the length direction of the shell 2. A nut 12 is sleeved and threaded on the bolt 1. The side of the gear 31 close to the flange 11 is meshed with an angle compass 32 that is perpendicular to the length direction of the bolt 1 and sleeved on the bolt 1. The angle compass 32 is located on the side of the nut 12 away from the flange 11 and is fixedly connected to the nut 12.

[0043] A rotating shaft 33 is passed through and fixedly connected to the axis of the gear 31. The end of the rotating shaft 33 close to the shell 2 is inserted into the cavity 22 and is rotatably connected to the shell 2. An angle sensor 34 for monitoring the rotation angle of the gear 31 is installed in the shell 2. A zeroing shaft 35 is installed on the angle sensor 34, which is rotatably connected to the shell 2 and parallel to the rotating shaft 33. The zeroing shaft 35 is located in the cavity 22 and a belt 36 connecting the two is installed between the zeroing shaft 35 and the rotating shaft 33.

[0044] One end of the zero-adjusting shaft 35 away from the gear 31 passes through the housing 2 and is rotatably connected to the housing 2. One end of the zero-adjusting shaft 35 located outside the housing 2 is provided with a zero-adjusting groove 351 that passes through the end surface of the zero-adjusting shaft 35. A control hole 412 is provided on the side of the moving rod 41 away from the connecting rod 421. When the connecting rod 421 contacts the contact 423, the control hole 412 is flush with the zero-adjusting groove 351. A zero-adjusting rod 6 for limiting the moving rod 41 and the zero-adjusting shaft 35 is provided on the housing 2.

[0045] One end of the zeroing rod 6 corresponds to the zeroing slot 351, and the other end is bent toward the inside of the housing 2. When one end of the zeroing rod 6 passes through the zeroing slot 351, the other end of the zeroing rod 6 passes through the housing 2 and is inserted into the control hole 412, which facilitates the installation of the housing 2.

[0046] The looseness monitoring unit 3 is installed on the bolt 1 through the housing 2. At this time, the gear 31 is engaged with the angle compass 32. When the nut 12 is loosened, it drives the angle compass 32 to rotate. At this time, the gear 31 drives the rotating shaft 33 to rotate under the drive of the angle compass 32. When the nut 12 is loosened and drives the gear 31 and the rotating shaft 33 to rotate, the belt 36 drives the zeroing shaft 35 to rotate with the rotating shaft 33, so that the angle sensor 34 can monitor the looseness of the nut 12 by detecting the rotation angle of the gear 31.

[0047] When installing the housing 2, first insert the end of the zero adjustment rod 6 into the zero adjustment slot 351 and zero the zero adjustment shaft 35. After zeroing, push the moving rod 41 to move until the control hole 412 is flush with the zero adjustment slot 351, insert one end of the zero adjustment rod 6 into the control hole 412, and the other end passes through the zero adjustment slot 351, thereby limiting the zero adjustment shaft 35 and the moving rod 41 at the same time, reducing the adverse effects on accuracy during installation.

[0048] The implementation principle of a bolt state monitoring device in an embodiment is as follows: the shell 2 is fixed on the bolt 1, the gear 31 is meshed with the angle compass 32, and when the nut 12 is loosened, the angle compass 32 is driven to rotate. At this time, the gear 31 drives the rotating shaft 33 to rotate under the drive of the angle compass 32. When the nut 12 is loosened and drives the gear 31 and the rotating shaft 33 to rotate, the belt 36 drives the zero adjustment shaft 35 to rotate with the rotating shaft 33, so that the angle sensor 34 can monitor the loosening of the nut 12 by detecting the rotation angle of the gear 31. When the bolt 1 breaks, the second spring 425 restores its deformation and drives the moving rod 41 to reset and drive the driving block 424 to move. The first spring 422 restores its deformation and pushes the connecting rod 421 to move along the inclined surface of the driving block 424 until the end of the driving block 424 with a smaller width is flush with the height of the connecting rod 421. At this time, the connecting rod 421 is separated from the contact 423, which is convenient for timely monitoring of the breakage of the bolt 1.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bolt status monitoring device, characterized in that: The invention comprises a housing (2) and a fixing member for fixing the housing (2) to a bolt (1); the housing (2) is provided with a loosening monitoring portion (3) and a fracture monitoring portion (4) for monitoring the bolt (1); the fracture monitoring portion (4) comprises a moving rod (41) arranged along the length direction of the bolt (1) and slidably connected to the housing (2); the housing (2) is provided with a monitoring component (42) for monitoring the movement of the moving rod (41); the monitoring component (42) comprises a connecting rod (421) having one end abutting against a side wall of the moving rod (41); the connecting rod (421) is provided with a connecting rod (421) and a connecting rod (421) having one end abutting against a side wall of the moving rod (41); the connecting rod (421) is provided with a connecting rod (421) and a connecting rod (421) for monitoring the movement of the moving rod (41); The connecting rod (421) is perpendicular to the moving rod (41) and is slidably connected to the shell (2); a first spring (422) is fixedly connected between the connecting rod (421) and the shell (2); a contact point (423) is provided on the shell (2); when the first spring (422) is at its original length, the connecting rod (421) and the contact point (423) are not in contact; a driving member for driving the connecting rod (421) to move is provided on the moving rod (41); and a resetting member for driving the moving rod (41) to reset is provided on the shell (2).

2. A bolt status monitoring device according to claim 1, characterized in that: The driving member comprises a driving block (424) fixedly connected to a side of the moving rod (41) close to the connecting rod (421) and arranged along the length direction of the moving rod (41); the width of the driving block (424) parallel to the length direction of the connecting rod (421) gradually decreases along the length direction of the moving rod (41); when the connecting rod (421) abuts against the contact point (423), the connecting rod (421) abuts against an end of the driving block (424) with a larger width.

3. A bolt status monitoring device according to claim 2, characterized in that: The reset member comprises a second spring (425) sleeved on the moving rod (41) and having one end fixed to the moving rod (41); the other end of the second spring (425) is fixedly connected to the housing (2).

4. A bolt status monitoring device according to claim 3, characterized in that: A limiting groove (411) is provided on a side of the moving rod (41) close to the connecting rod (421); a limiting plate (5) is provided on the shell (2) and is slidably connected to the shell (2) along the length direction of the connecting rod (421); a third spring (52) is fixedly connected between a side of the shell (2) close to the connecting rod (421) and the limiting plate (5); when the third spring (52) is at its original length, one end of the limiting plate (5) is inserted into the limiting groove (411).

5. A bolt status monitoring device according to claim 4, characterized in that: The looseness monitoring unit (3) comprises a gear (31) arranged along the length direction of the bolt (1) and rotatably connected to the housing (2); an angle compass (32) sleeved on the outside of the bolt (1) is meshed on one side of the gear (31); a nut (12) is meshed on the outside of the bolt (1); the angle compass (32) is fixed to the nut (12); a rotating shaft (33) is passed through and fixedly connected to the axis of the gear (31); and an angle sensor (34) for monitoring the rotation angle of the rotating shaft (33) is provided on the housing (2).

6. A bolt status monitoring device according to claim 5, characterized in that: The angle sensor (34) is provided with a zero adjustment shaft (35) parallel to the rotating shaft (33); a belt (36) is provided between the zero adjustment shaft (35) and the rotating shaft (33); one end of the zero adjustment shaft (35) passes through the housing (2) and is provided with a zero adjustment slot (351) passing through the end of the zero adjustment shaft (35); the moving rod (41) is provided with a control hole (412) for controlling the compression of the second spring (425); when the housing (2) is installed on the bolt (1), the second spring (425) is compressed, and the control hole (412) is flush with the zero adjustment slot (351); a zero adjustment rod (6) is provided on the housing (2); when the housing (2) is installed on the bolt (1), one end of the zero adjustment rod (6) is inserted into the control hole (412) and the other end passes through the zero adjustment slot (351).

7. A bolt status monitoring device according to claim 1, characterized in that: The fixing member comprises a clamp (21) which is mounted on a side of the housing (2) close to the bolt (1) and sleeved on the bolt (1).

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