Portable bolt pretightening force measuring and loading demonstration device
By designing a portable bolt preload measurement and loading device, the problem that the laboratory tensile machine cannot portability and measure small bolts is solved, and the lightweight and modular bolt preloading is realized, providing a portable and low-cost on-site demonstration. Solution to improve the display efficiency and accuracy of ultrasonic preload measurement.
Patent Information
- Application Number
- CN202420707719.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing laboratories are large in size, cannot be portable, and cannot effectively measure the pretension force of small bolts, resulting in the lack of portable bolt pretension measurement and loading demonstration devices in the market.
A device including a base, test bolt, force measuring ring, ultrasonic probe and portable jack was designed. Through lightweight and modular design, it can provide on-site preloading service for bolts of M10 to M14 specifications. It is small in size and price Cheap, suitable for live demonstrations.
The portable bolt preload measurement and loading device is realized, which can flexibly adapt to on-site needs and reduce operation difficulty. It provides a cheap and efficient demonstration solution to help ultrasonic preload measurement instrument manufacturers demonstrate technical accuracy and reliability.
Smart Images
Figure CN222336617U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolt testing, in particular to a portable bolt preload force measurement and loading demonstration device. Background Art
[0002] The ultrasonic technology for measuring bolt preload developed in recent years has gradually matured, but its popularity in the market is still not very high. Some customers are using this technology for the first time and need to demonstrate the process of ultrasonic measurement of bolt preload on site. However, there is no general demonstration product at present. Generally, equipment manufacturers can only demonstrate with laboratory tensile machines. This patent can effectively fill the gap in the market.
[0003] However, the existing laboratory tensile testing machines are large and cannot be carried. At the same time, bolts that are too small often cannot be measured. Therefore, it is necessary to choose a device that is easy to carry and can be demonstrated well. Currently, this market is blank. Therefore, a portable bolt preload measurement loading demonstration device is proposed. Utility Model Content
[0004] Technical Solution
[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a portable bolt preload force measurement and loading demonstration device, comprising a first base and a test bolt, the first base comprising a bottom plate, the bottom surface of the bottom plate being fixedly provided with reinforcing ribs, the top surface of the bottom plate being fixedly provided with two support plates, two movable side plates being respectively provided with adjacent side surfaces of the two support plates, two centering seat mounting holes being respectively penetrated through the surfaces of the two movable side plates, a centering seat being provided between the two movable side plates, two second mounting shafts being respectively fixedly provided on the front and rear end surfaces of the centering seat, the surfaces of the two second mounting shafts being respectively connected to the inner walls of the two centering seat mounting holes, a force measuring ring, a transition support, a first nut and an ultrasonic probe being provided above the centering seat.
[0006] Preferably, a positioning step is provided inside the centering seat, and a third through hole is penetrated through the top surface of the positioning step; the transition support includes a second base, a second boss is fixedly provided on the top surface of the second base, and the first through hole is penetrated through the top surface of the second boss and the top surface of the second base; a third boss is provided inside the force measuring ring, and a second through hole is penetrated through the top surface of the third boss, and the bottom surface of the second boss extends into the second through hole; the surface of the force measuring ring contacts the inner side of the positioning step; a contact surface is provided on the bottom surface of the ultrasonic probe, and the bottom surface of the contact surface contacts the top surface of the first nut, and the bottom surface of the first nut contacts the top surface of the second base.
[0007] Preferably, a waist-shaped hole is penetrated through the bottom surface of the base plate, a gasket is sleeved on the surface of the test bolt, the top surface of the test bolt passes through the waist-shaped hole, the third through hole, the second through hole, and the first through hole in sequence and extends to above the second base, the surface of the test bolt is threadedly connected to the inner side of the first nut, and a signal line connector is provided on the surface of the ultrasonic probe.
[0008] Preferably, two groups of movable arm mounting holes are respectively penetrated on the surfaces of the two support plates, and two support shaft mounting holes are respectively penetrated on the surfaces of the two movable side plates. A support shaft is arranged between the two support plates, and a sleeve is sleeved on the surface of the support shaft. The front and rear end surfaces of the support shaft respectively penetrate through a side surface close to the two support shaft mounting holes and a side surface close to the movable arm mounting hole in sequence and extend to the front and rear sides of the two support plates.
[0009] Preferably, a portable jack is arranged above the base plate, a movable rod is arranged on the top surface of the output end of the portable jack, a rear support rod is arranged on the top surface of the movable rod, the rear support rod includes a first mounting shaft, two rear support rod mounting holes are respectively provided on the surfaces of the two movable side plates of the device, front and rear end surfaces of the first mounting shaft respectively penetrate through a side surface close to the two rear support rod mounting holes and extend to the front and rear sides of the two movable side plates, a first boss is sleeved on the surface of the first mounting shaft, and the surface of the first boss is in contact with the top surface of the movable rod.
[0010] Preferably, two limit plates are fixedly provided on the right sides of the two support plates, two groups of limit holes are respectively opened on the surfaces of the two limit plates, and two limit bolts are provided on the rear side of the rear limit plate.
[0011] Preferably, the front faces of the two limiting bolts sequentially pass through the two groups of limiting holes and extend to the front side of the front limiting plate. The surfaces of the two limiting bolts are respectively threaded with two second nuts, and the back faces of the two second nuts are in contact with the front side face of the front limiting plate.
[0012] Beneficial Effects
[0013] Compared with the prior art, the utility model provides a portable bolt preload measurement and loading demonstration device, which has the following beneficial effects:
[0014] Through targeted, lightweight and modular design, it can provide on-site preload service for bolts of M10 to M14 specifications, and provide assistance for ultrasonic preload measurement demonstration. It is compact, cheap, light, easy to transport and move, can flexibly adapt to on-site needs, has low requirements for operators, greatly facilitates on-site demonstration work, and can provide flexible assistance for ultrasonic preload measurement instrument manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a main stereoscopic schematic diagram of the entire utility model;
[0016] Figure 2 It is an exploded stereoscopic schematic diagram of the utility model;
[0017] Figure 3 This is a three-dimensional schematic diagram of the base of the utility model;
[0018] Figure 4 This is a three-dimensional schematic diagram of the low seat of the utility model when viewed from above;
[0019] Figure 5 It is a three-dimensional schematic diagram of the movable side panel of the utility model;
[0020] Figure 6 It is a three-dimensional schematic diagram of the rear support rod of the utility model;
[0021] Figure 7 This is a three-dimensional schematic diagram of the ultrasonic probe of the utility model;
[0022] Figure 8 It is a three-dimensional schematic diagram of the transition support of the utility model;
[0023] Fig. 9 It is a three-dimensional schematic diagram of the force measuring ring of the utility model;
[0024] Fig.10 This is a three-dimensional schematic diagram of the centering seat of the utility model;
[0025] Fig.11 It is a three-dimensional schematic diagram of the portable jack of the utility model.
[0026] In the figure: the first base 1, the bottom plate 101, the reinforcing rib 102, the support plate 104, the movable arm mounting hole 105, the limiting plate 106, the limiting hole 107, the waist-shaped hole 108, the support shaft 2, the sleeve 3, the movable side plate 4, the support shaft mounting hole 401, the centering seat mounting hole 402, the rear support rod mounting hole 403, the rear support rod 5, the first mounting shaft 501, the first boss 502, the ultrasonic probe 6, the signal line connector 602, the contact surface 603, the first nut 7, the transition support 8, the first through hole 801, the second boss 802, the second base 803, the force measuring ring 9, the second through hole 901, the third boss 902, the centering seat 10, the second mounting shaft 1001, the positioning step 1002, the third through hole 1003, the limiting bolt 11, the second nut 12, the portable jack 13, the movable rod 1301, the gasket 14, and the test bolt 15. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Example 1
[0029] like Figure 1-Figure 5As shown, the present embodiment proposes a method comprising a first base 1 and a test bolt 15, wherein the first base 1 comprises a bottom plate 101, a reinforcing rib 102 is fixedly arranged on the bottom surface of the bottom plate 101, two support plates 104 are fixedly arranged on the top surface of the bottom plate 101, two movable side plates 4 are respectively arranged on the adjacent side surfaces of the two support plates 104, two centering seat mounting holes 402 are respectively penetrated through the surfaces of the two movable side plates 4, a centering seat 10 is arranged between the two movable side plates 4, two second mounting shafts 1001 are respectively fixedly arranged on the front and rear end surfaces of the centering seat 10, the surfaces of the two second mounting shafts 1001 are respectively connected to the inner walls of the two centering seat mounting holes 402, a force measuring ring 9, a transition support 8, a first nut 7 and an ultrasonic probe 6 are arranged above the centering seat 10, and the centering seat 10 is provided with a positioning step 1002 inside, and a third through hole 1003 is formed through the top surface of the positioning step 1002. The transition support 8 includes a second base 803, and a second boss 802 is fixedly provided on the top surface of the second base 803. The first through hole 801 is formed through the top surface of the second boss 802 and the top surface of the second base 803. A third boss 902 is provided inside the force measuring ring 9, and a second through hole 901 is formed through the top surface of the third boss 902. The bottom surface of the second boss 802 extends to the inside of the second through hole 901. The surface of the force measuring ring 9 contacts the inner side of the positioning step 1002. A contact surface 603 is provided on the bottom surface of the ultrasonic probe 6, and the bottom surface of the contact surface 603 contacts the top surface of the first nut 7. The bottom surface of the first nut 7 contacts the top surface of the second base 803. A waist-shaped hole 108 is penetrated through the bottom surface of the plate 101, a gasket 14 is sleeved on the surface of the test bolt 15, and the top surface of the test bolt 15 sequentially penetrates the waist-shaped hole 108, the third through hole 1003, the second through hole 901, and the first through hole 801 to extend to the top of the second base 803, and the surface of the test bolt 15 is threadedly connected with the inner side of the first nut 7, and a signal line connector 602 is provided on the surface of the ultrasonic probe 6. Two groups of movable arm mounting holes 105 are respectively penetrated through the surfaces of the two support plates 104, and two support shaft mounting holes 401 are respectively penetrated through the surfaces of the two movable side plates 4. A support shaft 2 is arranged between the two support plates 104, and a sleeve 3 is sleeved on the surface of the support shaft 2. The front and rear end surfaces of the support shaft 2 are respectively penetrated through the two support shaft mounting holes 401 near a side surface. A side surface close to the movable arm mounting hole 105 extends to the front and rear of the two support plates 104, a portable jack 13 is arranged above the bottom plate 101, a movable rod 1301 is arranged on the top surface of the output end of the portable jack 13, a rear support rod 5 is arranged on the top surface of the movable rod 1301, and the rear support rod 5 includes a first mounting shaft 501, and two rear support rod mounting holes 403 are respectively provided on the surfaces of the two movable side plates 4 of the two devices, and the front and rear end surfaces of the first mounting shaft 501 respectively penetrate the side surface close to the two rear support rod mounting holes 403 and extend to the front and rear of the two movable side plates 4, a first boss 502 is sleeved on the surface of the first mounting shaft 501, and the surface of the first boss 502 contacts the top surface of the movable rod 1301, and two limit plates 406 are fixedly arranged on the right sides of the two support plates 104,Two groups of limiting holes 407 are respectively opened on the surfaces of the two limiting plates 406. Two limiting bolts 11 are arranged on the rear side of the rear limiting plate 406. The front sides of the two limiting bolts 11 sequentially penetrate the two groups of limiting holes 407 and extend to the front side of the front limiting plate 406. Two second nuts 12 are respectively threadedly sleeved on the surfaces of the two limiting bolts 11. The back sides of the two second nuts 12 are in contact with the front side of the front limiting plate 406.
[0030] In this embodiment, through targeted, lightweight and modular design, it can provide on-site preload loading services for bolts of M10 to M14 specifications, and provide assistance for ultrasonic preload measurement demonstration. It has a small size, low price, light weight, and is easy to transport and move. It can flexibly adapt to on-site needs and has low requirements for operators, which greatly facilitates on-site demonstration work and can provide flexible assistance to manufacturers of ultrasonic preload measurement instruments.
[0031] When in use, install the test bolt 15, align the movable rod 13-1 of the portable jack 13 with the rear support rod 5 of the movable arms, fit the contact surface 6-3 of the test ultrasonic probe 6 with the end face of the test bolt 15, connect the ultrasonic signal line and the ultrasonic tester, connect the force ring signal line and the force ring display, operate the portable jack, the jack applies a force F to the rear fulcrum of the movable arms, amplified by the lever principle, and the force loaded on the test bolt is nF. At this time, the force ring reads the size of the real axial force of the bolt, and the ultrasonic tester also measures the preload force of the bolt. In this way, it is possible to show customers how to use ultrasound to measure the preload force of the bolt. At the same time, there is the measurement result of the force ring as a comparison, so that customers can better understand the accuracy and reliability of ultrasonic measurement technology.
[0032] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.
Claims
1. A portable bolt preload measurement and loading demonstration device, comprising a first base (1) and a test bolt (15), characterized in that: The first base (1) comprises a bottom plate (101), a reinforcing rib (102) being fixedly arranged on the bottom surface of the bottom plate (101), two supporting plates (104) being fixedly arranged on the top surface of the bottom plate (101), two movable side plates (4) being respectively arranged on adjacent sides of the two supporting plates (104), two centering seat mounting holes (402) being respectively penetrated through the surfaces of the two movable side plates (4), a centering seat (10) being arranged between the two movable side plates (4), two second mounting shafts (1001) being respectively fixedly arranged on the front and rear end surfaces of the centering seat (10), the surfaces of the two second mounting shafts (1001) being respectively connected to the inner walls of the two centering seat mounting holes (402), and a force measuring ring (9), a transition support (8), a first nut (7) and an ultrasonic probe (6) being arranged above the centering seat (10).
2. The portable bolt preload measurement and loading demonstration device according to claim 1 is characterized in that: The centering seat (10) is provided with a positioning step (1002) inside, and a third through hole (1003) is formed through the top surface of the positioning step (1002). The transition support (8) includes a second base (803), and a second boss (802) is fixedly provided on the top surface of the second base (803). The top surfaces of the second boss (802) and the second base (803) are both provided with a first through hole (801). The force measuring ring (9) is provided with a third boss (1003) inside. The third boss (902) has a second through hole (901) extending through the top surface of the third boss (902), the bottom surface of the second boss (802) extends to the inside of the second through hole (901), the surface of the force measuring ring (9) contacts the inner side of the positioning step (1002), the bottom surface of the ultrasonic probe (6) is provided with a contact surface (603), the bottom surface of the contact surface (603) contacts the top surface of the first nut (7), and the bottom surface of the first nut (7) contacts the top surface of the second base (803).
3. The portable bolt preload measurement and loading demonstration device according to claim 2 is characterized in that: The bottom surface of the base plate (101) is penetrated by a waist-shaped hole (108); the surface of the test bolt (15) is sleeved with a gasket (14); the top surface of the test bolt (15) sequentially penetrates the waist-shaped hole (108), the third through hole (1003), the second through hole (901), and the first through hole (801) to extend to the top of the second base (803); the surface of the test bolt (15) is threadedly connected to the inner side of the first nut (7); and the surface of the ultrasonic probe (6) is provided with a signal line connector (602).
4. The portable bolt preload measurement and loading demonstration device according to claim 1 is characterized in that: Two groups of movable arm mounting holes (105) are respectively penetrated on the surfaces of the two support plates (104), and two support shaft mounting holes (401) are respectively penetrated on the surfaces of the two movable side plates (4). A support shaft (2) is arranged between the two support plates (104), and a sleeve (3) is sleeved on the surface of the support shaft (2). The front and rear end surfaces of the support shaft (2) respectively penetrate the side surfaces close to the two support shaft mounting holes (401) and the side surfaces close to the movable arm mounting holes (105) in sequence and extend to the front and rear sides of the two support plates (104).
5. The portable bolt preload measurement and loading demonstration device according to claim 4 is characterized in that: A portable jack (13) is arranged above the bottom plate (101), a movable rod (1301) is arranged on the top surface of the output end of the portable jack (13), a rear support rod (5) is arranged on the top surface of the movable rod (1301), and the rear support rod (5) comprises a first mounting shaft (501), two rear support rod mounting holes (403) are respectively provided on the surfaces of the two movable side plates (4) of the device, the front and rear end surfaces of the first mounting shaft (501) respectively penetrate through the side surfaces close to the two rear support rod mounting holes (403) and extend to the front and rear sides of the two movable side plates (4), the surface of the first mounting shaft (501) is sleeved with a first boss (502), and the surface of the first boss (502) contacts the top surface of the movable rod (1301).
6. The portable bolt preload measurement and loading demonstration device according to claim 1 is characterized in that: Two limiting plates (406) are fixedly arranged on the right sides of the two support plates (104), two groups of limiting holes (407) are respectively opened on the surfaces of the two limiting plates (406), and two limiting bolts (11) are arranged on the rear side of the rear limiting plate (406).
7. The portable bolt preload measurement and loading demonstration device according to claim 6 is characterized in that: The front sides of the two limiting bolts (11) sequentially pass through the two groups of limiting holes (407) and extend to the front side of the front limiting plate (406). Two second nuts (12) are respectively threadedly sleeved on the surfaces of the two limiting bolts (11), and the back sides of the two second nuts (12) are in contact with the front side of the front limiting plate (406).