Bolt looseness online monitoring and early warning system

Abstract

The utility model relates to the technical field of bolt looseness monitoring, in particular to a bolt looseness on-line monitoring and early warning system which comprises a supporting block, a mounting plate is arranged above the supporting block, a connecting bolt is inserted into the surface of the mounting plate, a connecting nut is arranged on the surface of the connecting bolt in a threaded and sleeved mode, and the bolt looseness on-line monitoring and early warning system is arranged on the mounting plate. An online monitoring and early warning mechanism is arranged on the surface of the supporting block, a connecting ring and an online monitoring and early warning assembly are arranged in the online monitoring and early warning mechanism, the supporting block is detachably connected with the mounting plate through an assembly type mounting mechanism, and a rotating mechanism is arranged on the surface of the supporting block. The on-line monitoring and early warning system is suitable for connecting nuts of different sizes, high in flexibility and capable of improving the convenience degree during maintenance of the on-line monitoring and early warning system, workers do not need to take down the on-line monitoring and early warning system when screwing down the connecting nuts, and the labor intensity of the workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bolt loosening monitoring technology, specifically to an online bolt loosening monitoring and early warning system. Background Technology

[0002] Under alternating tensile and compressive loads, the threads undergo plastic deformation, leading to loosening. This results in a reduction in bolt preload, which in turn causes unreliable connections and can cause vibration, loosening, leakage, and structural slippage during operation, thus affecting the normal operation of the machine. Therefore, online monitoring and early warning of bolts are necessary.

[0003] Online monitoring and early warning systems typically monitor by installing sensors inside nuts, which limits the range of nuts that can be fitted. Furthermore, the sensors are difficult to disassemble and repair, reducing the ease of maintenance. If bolts become loose, workers need to use wrenches to tighten them, requiring the online monitoring and early warning system to be disassembled first, which is laborious and increases the workload when tightening nuts. Utility Model Content

[0004] The purpose of this utility model is to provide an online monitoring and early warning system for loose bolts, in order to solve the problems mentioned in the background art, such as the large limitations of the compatible nuts, the low convenience of maintenance, and the high labor intensity of tightening nuts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an online monitoring and early warning system for loose bolts, comprising a support block, an mounting plate disposed above the support block, connecting bolts inserted into the surface of the mounting plate, connecting nuts threaded onto the surface of the connecting bolts, an online monitoring and early warning mechanism disposed on the surface of the support block, the internal components of the online monitoring and early warning mechanism including a connecting ring and an online monitoring and early warning component, the support block and the mounting plate being detachably connected via an assembly-type installation mechanism, the assembly-type installation mechanism comprising a fastening screw, a sliding frame, a sliding strip, and a fastening stud, a rotating mechanism disposed on the surface of the support block, the internal components of the rotating mechanism including a rotating column, a sleeve, a locking bolt, a positioning slot, and a positioning block.

[0006] Preferably, a connecting ring is fixed to one side of the connecting nut, the connecting ring is sleeved on the surface of the connecting bolt, the surface of the connecting ring is in close contact with the surface of the mounting plate, and an online monitoring and early warning component is provided on one side of the connecting ring.

[0007] Preferably, the online monitoring and early warning component includes a contact displacement sensor, an early warning module, a data management module, and a power supply. The surface of the support block is equipped with a contact displacement sensor, one end of which is in contact with the surface of the connecting ring. The surface of the support block is equipped with an early warning module.

[0008] Preferably, a data management module is mounted on the surface of the support block, and the data management module is electrically connected to the contact displacement sensor and the early warning module respectively. A power supply is installed inside the support block, and the output terminal of the power supply is electrically connected to the input terminals of the contact displacement sensor, the early warning module and the data management module respectively.

[0009] Preferably, the bottom of the mounting plate is provided with a sliding frame, and both sides of the surface of the sliding frame are threadedly connected with fastening studs. One end of the fastening stud passes through the sliding frame and is threadedly fastened to the surface of the mounting plate.

[0010] Preferably, a slide bar is slidably disposed inside the slide frame, and a fastening screw is threadedly connected to one side of the slide frame. One end of the fastening screw passes through the slide frame and is threadedly fastened to the surface of the slide bar.

[0011] Preferably, one end of the support block is rotatably connected to a rotating column, one end of the rotating column is fixedly connected to the surface of the slide bar, and the rotating column is away from the contact displacement sensor.

[0012] Preferably, a sleeve is rotatably connected to the outer side of the rotating column, one end of the sleeve is fixedly connected to the surface of the support block, a positioning block is fixed to the inner wall of the sleeve, and a positioning groove is opened on one side of the rotating column, the positioning groove and the positioning block engaging with each other.

[0013] Preferably, a locking bolt is threadedly connected to one side of the sleeve. When the positioning slot engages with the positioning block, one end of the locking bolt passes through the sleeve and is threadedly fastened to the surface of the rotating column.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the bolt loosening online monitoring and early warning system is not only applicable to connecting nuts of different sizes, with high flexibility, which improves the convenience of maintenance of the online monitoring and early warning system, but also eliminates the need for workers to remove the online monitoring and early warning system when tightening the connecting nuts, thus reducing the labor intensity of workers;

[0015] 1. By setting up an online monitoring and early warning mechanism, if the connecting nut becomes loose, the connecting nut will shift, causing the connecting ring to shift synchronously. The displacement change data caused by the loose connecting nut is measured by a contact displacement sensor and transmitted to the data management module. The data management module then transmits the information to the early warning module, which will issue an alarm to remind the staff. This realizes the function of online monitoring and early warning system to directly monitor and warn of looseness on the outside of the connecting nut. It is applicable to connecting nuts of different sizes and has high flexibility.

[0016] 2. By setting up an assembly-type installation mechanism, the sliding frame is fixed to the bottom of the mounting plate with fastening studs, so that the sliding frame is located on the side of the connecting nut. Then, the online monitoring and early warning system is moved to the side of the connecting nut, so that the sliding bar is inserted into the sliding frame. Then, the sliding bar is pushed, and the support block is installed on the side of the connecting nut under the sliding cooperation between the sliding bar and the sliding frame, so that one end of the contact displacement sensor contacts the connecting ring. Then, the fastening screw is tightened to fix the sliding frame and the sliding bar. If the online monitoring and early warning system needs to be repaired, simply loosen the fastening screw, pull the sliding bar out of the sliding frame, and remove the support block for repair. This realizes the function of easy repair of the online monitoring and early warning system, thereby improving the convenience of maintenance of the online monitoring and early warning system.

[0017] 3. By incorporating a rotating mechanism, when the connecting nut becomes loose, the locking bolt can be loosened, moving it away from the rotating column. Then, the support block can be rotated along the rotating column, moving the contact displacement sensor away from the connecting nut. This does not interfere with the worker's ability to tighten the connecting nut using tools. After the connecting nut is tightened, the support block can be rotated, causing the sleeve and positioning block to rotate synchronously. This allows the positioning block to engage in the positioning slot, repositioning the support block. Finally, the locking bolt is tightened to fix the rotating column and sleeve, enabling the online monitoring and early warning system to rotate. This eliminates the need for workers to remove the online monitoring and early warning system when tightening the connecting nut, reducing their workload. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0020] Figure 3 This is a partially enlarged structural schematic diagram of the present invention;

[0021] Figure 4 This is an enlarged structural schematic diagram of the rotating mechanism of this utility model.

[0022] In the diagram: 1. Support block; 11. Mounting plate; 12. Connecting bolt; 13. Connecting nut; 2. Online monitoring and early warning mechanism; 21. Connecting ring; 22. Online monitoring and early warning component; 221. Contact displacement sensor; 222. Early warning module; 223. Data management module; 224. Power supply; 3. Assembled installation mechanism; 31. Fastening screw; 32. Slide frame; 33. Slide bar; 34. Fastening stud; 4. Rotating mechanism; 41. Rotating column; 42. Sleeve; 43. Locking bolt; 44. Positioning slot; 45. Positioning block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0024] The structure of the online monitoring and early warning system for loose bolts provided by this utility model is as follows: Figure 1 and Figure 2 As shown, it includes a support block 1, an mounting plate 11 is provided above the support block 1, a connecting bolt 12 is inserted into the surface of the mounting plate 11, and a connecting nut 13 is threaded onto the surface of the connecting bolt 12.

[0025] Furthermore, such as Figure 3As shown, an online monitoring and early warning mechanism 2 is provided on the surface of the support block 1. The online monitoring and early warning mechanism 2 includes a connecting ring 21 and an online monitoring and early warning component 22. The connecting ring 21 is fixed to one side of the connecting nut 13. The connecting ring 21 is sleeved on the surface of the connecting bolt 12. The surface of the connecting ring 21 is in close contact with the surface of the mounting plate 11. An online monitoring and early warning component 22 is provided on one side of the connecting ring 21. The online monitoring and early warning component 22 includes a contact displacement sensor 221, an early warning module 222, a data management module 223, and a power supply 224. A contact displacement sensor 221, an early warning module 222, a data management module 223, and a power supply 224 are installed on the surface of the support block 1. The displacement sensor 221, which can be of the HG series, is a contact type. One end of the contact type displacement sensor 221 is in contact with the surface of the connecting ring 21. An early warning module 222 is installed on the surface of the support block 1, and a data management module 223 is installed on the surface of the support block 1. The data management module 223 is electrically connected to the contact type displacement sensor 221 and the early warning module 222 respectively. A power supply 224 is installed inside the support block 1. The output terminal of the power supply 224 is electrically connected to the input terminals of the contact type displacement sensor 221, the early warning module 222 and the data management module 223 respectively.

[0026] In use, if the connecting nut 13 becomes loose, the connecting nut 13 will displace, causing the connecting ring 21 to displace synchronously. The displacement change data caused by the loosening of the connecting nut 13 is measured by the contact displacement sensor 221 and transmitted to the data management module 223. The data management module 223 then transmits the information to the early warning module 222, which issues an alarm to remind the staff. This realizes the function of online monitoring and early warning system to directly monitor and warn of loosening on the outside of the connecting nut 13.

[0027] Furthermore, such as Figure 3 As shown, the support block 1 and the mounting plate 11 are detachably connected by the assembly mounting mechanism 3. The assembly mounting mechanism 3 consists of a fastening screw 31, a sliding frame 32, a sliding strip 33, and a fastening stud 34. The bottom of the mounting plate 11 is provided with a sliding frame 32. Both sides of the surface of the sliding frame 32 are threadedly connected with fastening studs 34. One end of the fastening stud 34 passes through the sliding frame 32 and is threadedly fastened to the surface of the mounting plate 11. The sliding strip 33 is slidably arranged inside the sliding frame 32. One side of the sliding frame 32 is threadedly connected with a fastening screw 31. One end of the fastening screw 31 passes through the sliding frame 32 and is threadedly fastened to the surface of the sliding strip 33.

[0028] In use, the sliding frame 32 is fixed to the bottom of the mounting plate 11 by the fastening stud 34, so that the sliding frame 32 is located on the side of the connecting nut 13. Then, the online monitoring and early warning system is moved to the side of the connecting nut 13, so that the sliding strip 33 is inserted into the sliding frame 32. Then, the sliding strip 33 is pushed, and the support block 1 is installed on the side of the connecting nut 13 under the sliding cooperation between the sliding strip 33 and the sliding frame 32, so that one end of the contact displacement sensor 221 contacts the connecting ring 21. Then, the fastening screw 31 is tightened to fix the sliding frame 32 and the sliding strip 33. If the online monitoring and early warning system needs to be repaired, simply loosen the fastening screw 31, pull the sliding strip 33 away from the sliding frame 32, and remove the support block 1 for repair, so as to realize the function of easy maintenance of the online monitoring and early warning system.

[0029] Furthermore, such as Figure 4 As shown, a rotating mechanism 4 is provided on the surface of the support block 1. The interior of the rotating mechanism 4 includes a rotating column 41, a sleeve 42, a locking bolt 43, a positioning groove 44, and a positioning block 45. The rotating column 41 is rotatably connected to one end of the support block 1. One end of the rotating column 41 is fixedly connected to the surface of the slide bar 33. The rotating column 41 is away from the contact displacement sensor 221. The sleeve 42 is rotatably connected to the outside of the rotating column 41. One end of the sleeve 42 is fixedly connected to the surface of the support block 1. The positioning block 45 is fixed to the inner wall of the sleeve 42. A positioning groove 44 is provided on one side of the rotating column 41. The positioning groove 44 and the positioning block 45 engage with each other. A locking bolt 43 is threadedly connected to one side of the sleeve 42. When the positioning groove 44 engages with the positioning block 45, one end of the locking bolt 43 passes through the sleeve 42 and is threadedly fastened to the surface of the rotating column 41.

[0030] In use, when the connecting nut 13 becomes loose, the locking bolt 43 can be loosened to move the locking bolt 43 away from the rotating column 41. Then, the support block 1 can be rotated to move the support block 1 along the rotating column 41, moving the contact displacement sensor 221 away from the connecting nut 13. This does not affect the operator's ability to tighten the connecting nut 13 using tools. After the connecting nut 13 is tightened, the support block 1 can be rotated to make the support block 1 drive the sleeve 42 and the positioning block 45 to rotate synchronously. This causes the positioning block 45 to engage inside the positioning slot 44, repositioning the support block 1. Then, the locking bolt 43 can be tightened to fix the rotating column 41 and the sleeve 42, thus realizing the rotation function of the online monitoring and early warning system. This allows the operator to tighten the connecting nut 13 without removing the online monitoring and early warning system.

[0031] Working principle: In use, firstly, the two mounting plates 11 are connected and fixed by the threaded engagement of the connecting bolt 12 and the connecting nut 13. Then, the sliding frame 32 is fixed to the bottom of the mounting plate 11 by the fastening stud 34, so that the sliding frame 32 is located on one side of the connecting nut 13. Then, the online monitoring and early warning system is moved to the side of the connecting nut 13, so that the sliding strip 33 is inserted into the sliding frame 32. Then, the sliding strip 33 is pushed, and the support block 1 is installed on one side of the connecting nut 13 under the sliding engagement of the sliding strip 33 and the sliding frame 32, so that one end of the contact displacement sensor 221 contacts the connecting ring 21. Then, the fastening screw 31 is tightened to fix the sliding frame 32 and the sliding strip 33. If the online monitoring and early warning system needs to be repaired, simply loosen the fastening screw 31, pull the sliding strip 33 away from the sliding frame 32, and remove the support block 1 for repair. This realizes the function of easy repair of the online monitoring and early warning system, thereby improving the convenience of repair.

[0032] In use, if the connecting nut 13 becomes loose, it will displace, causing the connecting ring 21 to displace synchronously. The displacement change data caused by the loosening of the connecting nut 13 is measured by the contact displacement sensor 221 and transmitted to the data management module 223. The data management module 223 then transmits the information to the early warning module 222, which issues an alarm to remind the staff. This realizes the function of online monitoring and early warning system to directly monitor and warn of loosening on the outside of the connecting nut 13. It is applicable to connecting nuts 13 of different sizes and has high flexibility.

[0033] When the connecting nut 13 becomes loose, the locking bolt 43 can be loosened to move it away from the rotating column 41. Then, the support block 1 can be rotated along the rotating column 41, moving the contact displacement sensor 221 away from the connecting nut 13. This does not affect the operator's ability to tighten the connecting nut 13 using tools. After the connecting nut 13 is tightened, the support block 1 can be rotated to drive the sleeve 42 and the positioning block 45 to rotate synchronously. This causes the positioning block 45 to engage inside the positioning slot 44, repositioning the support block 1. Then, the locking bolt 43 can be tightened to fix the rotating column 41 and the sleeve 42, thus realizing the rotation function of the online monitoring and early warning system. This eliminates the need for the operator to remove the online monitoring and early warning system when tightening the connecting nut 13, reducing the operator's workload and ultimately completing the operation of the online monitoring and early warning system.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An online monitoring and early warning system for loose bolts, comprising a support block (1), characterized in that: An mounting plate (11) is provided above the support block (1). A connecting bolt (12) is inserted into the surface of the mounting plate (11). A connecting nut (13) is threaded onto the surface of the connecting bolt (12). An online monitoring and early warning mechanism (2) is provided on the surface of the support block (1). The interior of the online monitoring and early warning mechanism (2) includes a connecting ring (21) and an online monitoring and early warning component (22). The support block (1) and the mounting plate (11) are detachably connected by an assembly-type mounting mechanism (3). The assembly-type mounting mechanism (3) consists of a fastening screw (31), a sliding frame (32), a sliding strip (33), and a fastening stud (34). A rotating mechanism (4) is provided on the surface of the support block (1). The interior of the rotating mechanism (4) includes a rotating column (41), a sleeve (42), a locking bolt (43), a positioning slot (44), and a positioning block (45).

2. The bolt loosening online monitoring and early warning system according to claim 1, characterized in that: A connecting ring (21) is fixed on one side of the connecting nut (13). The connecting ring (21) is sleeved on the surface of the connecting bolt (12). The surface of the connecting ring (21) is in close contact with the surface of the mounting plate (11). An online monitoring and early warning component (22) is provided on one side of the connecting ring (21).

3. The bolt loosening online monitoring and early warning system according to claim 2, characterized in that: The online monitoring and early warning component (22) includes a contact displacement sensor (221), an early warning module (222), a data management module (223), and a power supply (224). The surface of the support block (1) is equipped with a contact displacement sensor (221), one end of which is in contact with the surface of the connecting ring (21). The surface of the support block (1) is equipped with an early warning module (222).

4. The bolt loosening online monitoring and early warning system according to claim 3, characterized in that: A data management module (223) is installed on the surface of the support block (1). The data management module (223) is electrically connected to the contact displacement sensor (221) and the early warning module (222) respectively. A power supply (224) is installed inside the support block (1). The output end of the power supply (224) is electrically connected to the input end of the contact displacement sensor (221), the early warning module (222) and the data management module (223) respectively.

5. The bolt loosening online monitoring and early warning system according to claim 1, characterized in that: The bottom of the mounting plate (11) is provided with a sliding frame (32), and both sides of the surface of the sliding frame (32) are threadedly connected with fastening studs (34). One end of the fastening stud (34) passes through the sliding frame (32) and is threadedly fastened to the surface of the mounting plate (11).

6. The bolt loosening online monitoring and early warning system according to claim 2, characterized in that: The slide frame (32) is slidably provided with a slide bar (33), and a fastening screw (31) is threadedly connected to one side of the slide frame (32). One end of the fastening screw (31) passes through the slide frame (32) and is threadedly fastened to the surface of the slide bar (33).

7. The online monitoring and early warning system for loose bolts according to claim 1, characterized in that: One end of the support block (1) is rotatably connected to a rotating column (41), one end of the rotating column (41) is fixedly connected to the surface of the slide bar (33), and the rotating column (41) is away from the contact displacement sensor (221).

8. The online monitoring and early warning system for loose bolts according to claim 7, characterized in that: A sleeve (42) is rotatably connected to the outer side of the rotating column (41). One end of the sleeve (42) is fixedly connected to the surface of the support block (1). A positioning block (45) is fixed to the inner wall of the sleeve (42). A positioning groove (44) is opened on one side of the rotating column (41). The positioning groove (44) and the positioning block (45) are engaged with each other.

9. The online monitoring and early warning system for loose bolts according to claim 8, characterized in that: A locking bolt (43) is threadedly connected to one side of the sleeve (42). When the positioning slot (44) engages with the positioning block (45), one end of the locking bolt (43) passes through the sleeve (42) and is threadedly fastened to the surface of the rotating column (41).

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