A bolt missing screwing detection device
By designing a bolt loosening detection device and utilizing the transmission mechanism of the frame components and the verification unit, the problem of low efficiency in detecting bolt tightening in place was solved, thereby improving the accuracy of the detection and the stability and safety of the equipment.
Patent Information
- Application Number
- CN202411319882.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2044-09-23
AI Technical Summary
Existing technologies are inefficient at detecting whether bolts are tightened properly and cannot adapt to the differences in specifications of different parts, resulting in inconsistent bolt positions and affecting the stability and safety of the equipment.
A bolt loosening detection device was designed, including a frame and a verification part. The verification part is moved synchronously through a transmission mechanism to detect whether the bolt is blocked or disassembled, so as to achieve rapid detection and adapt to different parts shapes.
It enables rapid and accurate detection of bolt tightness, reduces the error rate, and improves the stability and safety of the equipment.
Smart Images

Figure CN119198038B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the design of a tooling for loose bolts, and more specifically to a device for detecting loose bolts. Background Technology
[0002] For parts that require manual bolt tightening, if the bolts are not tightened properly, the following problems may occur:
[0003] 1. Loose bolts can create tiny gaps between components. These gaps will gradually widen due to vibration during equipment operation, exacerbating the vibration level of the entire system. Over time, this will not only affect the stability of the equipment but may also damage other surrounding components.
[0004] 2. Bolts, as connecting components, primarily function to transmit and distribute forces between parts. If bolts are not properly tightened, uneven force distribution will occur at the connection point, leading to stress concentration. This uneven stress will accelerate fatigue damage to components and shorten their service life.
[0005] 3. Loose bolts are prone to gradually loosening under the influence of external factors such as vibration and impact. Once the bolts completely fall off, it will lead to connection failure, which may cause equipment failure, downtime, or even safety accidents.
[0006] 4. Uneven stress and increased vibration can lead to accelerated wear and cracking of parts, ultimately causing damage. Furthermore, loose connections can affect the overall performance of the equipment, such as reducing transmission efficiency and increasing energy consumption.
[0007] 5. Improperly tightened bolts are one of the root causes of many equipment malfunctions and safety accidents. It can lead to sudden equipment shutdowns, leaks of hazardous substances, or other unexpected situations during operation, posing a serious threat to the safety of personnel and equipment.
[0008] Specifically, in response to the above problems, the existing technology uses a striker to solve the problem. For products of the same specifications, a pre-arranged striker is used to detect whether multiple bolts are tightened to the appropriate position. Refer to the publication (announcement) number: CN217371295U, publication (announcement) date: 2022-09-06, which discloses a detection device based on automatic bolt tightening.
[0009] The engine has a complex composition of parts. Because the parts are of different specifications, when mechanical operation is not possible, bolts can only be tightened manually. Therefore, the technology of the above patent is not very efficient in this situation, because the different specifications of the parts lead to different bolt positions. Summary of the Invention
[0010] The purpose of this invention is to provide a bolt loosening detection device, which can detect whether bolts are loosely tightened, so as to detect and correct them early and reduce the error rate.
[0011] To achieve the above objectives, the present invention provides the following technical solution:
[0012] A bolt loosening detection device includes a frame for clamping onto the outer contour of a component and an inspection part located inside the frame and in a sliding assembly.
[0013] Preferably, the number of verification units is at least two, and they are arranged symmetrically and kept moving towards each other by a first transmission mechanism.
[0014] Preferably, the first transmission mechanism includes symmetrically arranged synchronous pulleys and a synchronous belt sleeved on the two synchronous pulleys;
[0015] The end of the verification part is rotatably provided with a transmission gear that meshes with the teeth of the synchronous belt surface.
[0016] Preferably, the transmission gear of the first verification unit is located inside the synchronous belt, while the transmission gear of the other verification unit meshes with the outside of the synchronous belt;
[0017] It also includes a toothed plate that meshes with a transmission gear that engages with the outer side of the timing belt.
[0018] Preferably, the frame component is a rectangular frame with adjustable length and width, which is slidably assembled with the second horizontal part and the second vertical part, which are integrally formed with the first L-shaped rod.
[0019] Preferably, the second transmission mechanism includes:
[0020] A wing screw that is rotatably mounted on the first L-shaped rod and drives the second horizontal part / second vertical part;
[0021] A second transmission assembly for connecting the two said wing screws includes at least a first trapezoidal gear mounted on the end of the wing screw.
[0022] Preferably, the second transmission assembly further includes two parallel and oppositely arranged tapered guide rollers and a transmission guide wheel that is tangentially and rollingly connected to the sidewalls of the two tapered guide rollers.
[0023] Preferably, the outer wall of the first L-shaped rod is slidably provided with a push plate, the transmission guide wheel is rotatably disposed on the push plate, and at one end of the sliding direction of the push plate, the transmission guide wheel is not tangent to the two tapered guide rollers.
[0024] Preferably, a second neodymium magnet is provided on one side of the push plate and is magnetically connected to the first neodymium magnet fixedly installed on the first L-shaped rod. When the two neodymium magnets are magnetically connected, the transmission guide wheel is tangent to the two conical guide rollers.
[0025] Preferably, the height of the verification part is smaller than the height of the frame member.
[0026] In the above technical solution, the bolt loosening detection device provided by the present invention has the following beneficial effects: when in use, the frame covers the component, and then the inspection part moves from one side to the other to scan, thereby detecting the bolt tightness of the component. When the inspection part is blocked by the bolt during the movement and cannot move, the bolt is determined to be loose and needs to be tightened again, thereby achieving the purpose of quickly checking the bolt tightness, and it can be applied to the bolt tightness detection of components with any shape. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0028] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;
[0029] Figure 2 This is an enlarged structural diagram of point A provided in an embodiment of the present invention;
[0030] Figure 3 This is a schematic diagram of the structure of the synchronous pulley, synchronous belt, and transmission gear provided in an embodiment of the present invention;
[0031] Figure 4 This is a schematic diagram of the transmission assembly provided in an embodiment of the present invention.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Frame component; 11. L-shaped rod; 111. First vertical part; 112. First horizontal part; 113. Slide rail groove; 12. Second horizontal part; 13. Second vertical part; 14. Guide groove; 15. Boring groove; 16. V-shaped elastic element; 2. Verification part; 31. Synchronous pulley; 32. Synchronous belt; 33. Transmission gear; 34. Gear plate; 4. Wing screw; 5. Second transmission assembly; 51. First trapezoidal gear; 52. Conical guide roller; 53. Transmission guide wheel; 6. Push slide plate; 61. Second neodymium magnet; 7. First neodymium magnet. Detailed Implementation
[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0035] like Figure 1-4 As shown, a bolt loosening detection device includes a frame 1 for clamping onto the outer contour of a component and an inspection part 2 located inside the frame 1 and in a sliding assembly.
[0036] Specifically, in the embodiment, the height of the verification part 2 is less than the height of the frame part 1. That is, when the frame part 1 is stuck on the surface of the component, the height of the verification part 2 from the component is equal to the height of the tightened bolt.
[0037] In the above technology, the frame 1 covers the parts, and the inspection unit 2 moves from one side to the other to scan, thereby detecting the tightening of the bolts on the parts. If the inspection unit 2 is blocked by the bolt and cannot move during the movement, the bolt is determined to be loose and needs to be tightened again. This achieves the purpose of quickly checking the tightening of bolts and can be applied to parts with any shape to check the tightening of bolts.
[0038] As a further embodiment of the present invention, the number of verification units 2 is at least two, and they are arranged symmetrically and kept moving in opposite directions by a first transmission mechanism.
[0039] Furthermore, the first transmission mechanism includes symmetrically arranged synchronous pulleys 31 and a synchronous belt 32 sleeved on the two synchronous pulleys 31;
[0040] The end of the verification unit 2 is rotatably provided with a transmission gear 33 that meshes with the toothed edge of the synchronous belt 32.
[0041] Specifically, in the embodiment, the first transmission mechanism is arranged inside one side of the frame member 1, and the transmission gears 33 rotatably disposed at the ends of the two verification parts 2 can be located inside the synchronous belt 32. When one verification part 2 is pushed to move toward the other verification part 2, the other verification part 2 is driven to move synchronously and approach under the transmission of the synchronous belt 32, thereby speeding up the efficiency of bolt detection.
[0042] As another embodiment of the present invention, the transmission gear 33 of the first verification unit 2 is located inside the synchronous belt 32, while the transmission gear 33 of the other verification unit 2 meshes with the outside of the synchronous belt 32.
[0043] It also includes a toothed plate 34, which meshes with a transmission gear 33 that meshes with the outer side of the timing belt 32.
[0044] Specifically, the toothed plate 34 is fixedly installed inside one side of the frame member 1. When one of the verification parts 2 is pushed to move toward the other verification part 2, the transmission gear 33 of the other verification part 2 is driven by the synchronous belt 32 to move along the trajectory provided by the toothed plate 34, thereby making the two verification parts 2 move synchronously.
[0045] As a further embodiment of the present invention, the frame member 1 is specifically a rectangular frame with adjustable length and width, which is slidably assembled with the second horizontal part 12 and the second vertical part 13, which are respectively slidably assembled with the integrally formed L-shaped rod member 11.
[0046] Specifically, in the embodiment, the L-shaped rod 11 is divided into a first vertical part 111 and a first horizontal part 112 according to its structure, and the ends of the first vertical part 111 and the first horizontal part 112 are combined into one piece.
[0047] Combination Figure 1 As can be seen, in the embodiment, the first vertical part 111 and the first horizontal part 112 are respectively provided with slide rail grooves 113, and the second horizontal part 12 and the second vertical part 13 are respectively slidably disposed in the slide rail grooves 113.
[0048] Secondly, in the embodiment, both the first vertical part 111 and the second vertical part 13 are provided with guide grooves 14 for the movement of the verification part 2, so the first transmission mechanism is installed inside the first vertical part 111 and the second vertical part 13.
[0049] Furthermore, in the embodiments, the combination Figure 1 It is known that in the embodiment, both the second horizontal part 12 and the second vertical part 13 have a boring groove 15 at one end, and the second horizontal part 12 slides within the boring groove 15 of the second vertical part 13.
[0050] Furthermore, in combination Figure 2 It is known that a V-shaped elastic member 16 is provided on the inner wall of the slot 15 port side of the second vertical part 13. One end of the V-shaped elastic member 16 slides in the rectangular groove opened on the inner wall of the slot 15 port side of the V-shaped elastic member 16, which is used to block the second horizontal part 12 and prevent the second horizontal part 12 from slipping out of the slot 15 of the second vertical part 13.
[0051] As a further embodiment of the present invention, the second transmission mechanism includes:
[0052] The butterfly screw 4 is rotatably mounted on the L-shaped rod 11 and is in transmission cooperation with the second horizontal part 12 / second vertical part 13;
[0053] The second transmission assembly 5 for driving the two wing screws 4 together includes at least a first trapezoidal gear 51 mounted on the end of the wing screw 4.
[0054] Specifically, in the embodiment, the two first trapezoidal gears 51 mesh with each other, so that when either of the second horizontal part 12 or the second vertical part 13 on either of the two wing screws 4 is moved by human force, the corresponding second vertical part 13 or the second horizontal part 12 is driven to move under the transmission of the two first trapezoidal gears 51.
[0055] As another embodiment of the present invention, the second transmission assembly 5 further includes two parallel and oppositely arranged tapered guide rollers 52 and a transmission guide wheel 53 that is tangentially and rollingly connected to the sidewalls of the two tapered guide rollers 52.
[0056] Furthermore, a push plate 6 is slidably provided on the outer wall of the L-shaped rod 11, and a transmission guide wheel 53 is rotatably provided on the push plate 6. At one end of the sliding direction of the push plate 6, the transmission guide wheel 53 is not tangent to the two conical guide rollers 52.
[0057] Specifically, in combination Figure 4 It can be seen that, in the embodiment, a groove for mounting and pushing the sliding plate 6 is provided on the side wall of the first vertical part 111, so as to... Figure 4 Taking the position shown as reference, when the pusher slide 6 moves to the right, the transmission guide wheel 53 slides along with it and is not tangent to the two conical guide rollers 52. At this time, pushing the second horizontal part 12 or the second vertical part 13 will not drive the second vertical part 13 or the second horizontal part 12 to move accordingly.
[0058] When the pusher slide 6 moves to the left, the transmission guide wheel 53 slides and becomes tangent to the two conical guide rollers 52. At this time, pushing the second horizontal part 12 or the second vertical part 13 will cause the second vertical part 13 or the second horizontal part 12 to move accordingly.
[0059] As a further embodiment of the present invention, a second neodymium magnet 61 is provided on one side of the push plate 6 and is magnetically connected to the first neodymium magnet 7 fixedly installed on the L-shaped rod 11. When the two neodymium magnets are magnetically connected, the transmission guide wheel 53 is tangent to the two conical guide rollers 52.
[0060] Specifically, when the push plate 6 moves to the left in the embodiment, the second neodymium magnet 61 on the push plate 6 will be magnetically connected to the first neodymium magnet 7, thereby maintaining this position. At this time, the transmission guide wheel 53 slides and is tangent to the two conical guide rollers 52. Therefore, pushing the second horizontal part 12 or the second vertical part 13 will drive the second vertical part 13 or the second horizontal part 12 to move accordingly.
[0061] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A bolt miss tightening detection device, characterized by, The utility model relates to a kind of frame parts (1) for clamping the external profile of component and the verification unit (2) in frame part (1), and the verification unit (2) is slidably assembled in frame part (1); The number of the verification unit (2) is at least two, and symmetrically arranged, and kept moving towards each other by first transmission mechanism; The first transmission mechanism includes symmetrically arranged synchronous pulleys (31) and synchronous belts (32) sleeved on two synchronous pulleys (31); The end of the verification unit (2) is rotatably provided with a transmission gear (33) engaged with the tooth opening of the belt surface of the synchronous belt (32); The transmission gear (33) of the first verification unit (2) is located in the synchronous belt (32), while the transmission gear (33) of the other verification unit (2) is engaged with the outside of the synchronous belt (32). It also includes a toothed plate (34) engaged with the transmission gear (33) engaged with the outside of the synchronous belt (32). The frame part (1) is specifically a rectangular frame with adjustable length and width composed of a second horizontal part (12) and a second vertical part (13) slidably assembled with an integrally formed L-shaped rod (11) respectively.
2. The bolt miss tightening detection device according to claim 1, characterized in that, It also includes a second transmission mechanism, which includes: butterfly screws (4) rotatably arranged on the L-shaped rod (11) respectively and in transmission cooperation with the second horizontal part (12) / second vertical part (13); A second transmission assembly (5) for transmission connection of the two butterfly screws (4), which at least includes a first trapezoidal gear (51) mounted at the end of the butterfly screw (4).
3. A bolt miss tightening detection device according to claim 2, wherein The second transmission assembly (5) further includes two conical guide rollers (52) arranged in parallel and opposite directions, and a transmission guide wheel (53) rolling connected with the side walls of the two conical guide rollers (52).
4. The bolt miss tightening detection apparatus according to claim 3, wherein The outer wall of the L-shaped rod (11) is slidably provided with a push slide (6), and the transmission guide wheel (53) is rotatably arranged on the push slide (6), and one end of the sliding direction of the push slide (6) is not tangent to the two conical guide rollers (52).
5. A bolt miss tightening detection device according to claim 4, wherein One side of the push slide (6) is provided with a second rubidium magnet (61) magnetically connected with a first rubidium magnet (7) fixedly installed on the L-shaped rod (11), and when the two rubidium magnets are magnetically connected, the transmission guide wheel (53) is tangent to the two conical guide rollers (52).
6. The bolt miss tightening detection apparatus according to claim 1, wherein The height of the verification unit (2) is smaller than the height of the frame part (1).
Citation Information
Patent Citations
Detection device based on automatic bolt tightening
CN217371295U
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CN102879198A
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