Fatigue experiment device for bolt torsion
By designing a bolt torque fatigue testing device with a box body, box cover, limiting strip, and temperature control structure, the safety and adaptability issues of existing devices were solved. This device enables shielding and splash prevention for bolts of different sizes and temperature environment regulation, thereby improving the safety and accuracy of the experiment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing bolt torsional fatigue testing equipment is not convenient for shielding and preventing splashing of bolts during torsional fatigue testing, resulting in limited safety. It is also inconvenient for conducting torsional fatigue tests on bolts of different sizes and for placing bolts in different temperature environments during torsional fatigue testing.
An experimental device was designed, comprising a box body, a box cover, a limiting strip, an upper clamp, a lower clamp, and a temperature control and adjustment structure. The limiting strip and the box cover work together to prevent splashing. Clamps and clamps of different sizes are set to accommodate bolts of different sizes. Temperature sensors, heating tubes, and liquid nitrogen tanks are used to adjust the temperature environment.
It achieves safe shielding and splash prevention for bolts in torsional fatigue tests, can adapt to the experimental requirements of bolts of different sizes, and can conduct experiments in different temperature environments, thus improving the safety and accuracy of the experiments.
Smart Images
Figure CN224034913U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bolt torsion fatigue experiment technical field, concretely is a kind of bolt torsion fatigue experiment device. BACKGROUND
[0002] In bolt production process, bolt torsion is experimented by fatigue experiment device, and bolt torsion fatigue experiment is to ensure that the fastening degree after tightening bolt meets design requirement and relevant standard, so as to ensure product quality and improve production efficiency etc.
[0003] But the existing bolt torsion fatigue experiment device, in use process, still has some problems, such as generally not convenient to shield and splashproof bolt in torsion fatigue experiment, limited safety, not convenient to the torsion fatigue experiment of bolt of different sizes, it is difficult to make bolt in torsion fatigue experiment in different temperature environment, therefore, we propose a kind of bolt torsion fatigue experiment device to solve the problems raised in the above. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of bolt torsion fatigue experiment device to solve the problems raised in the above background art, such as generally not convenient to shield and splashproof bolt in torsion fatigue experiment, limited safety, not convenient to the torsion fatigue experiment of bolt of different sizes, it is difficult to make bolt in torsion fatigue experiment in different temperature environment.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of bolt torsion fatigue experiment device, including box, the fixed block of the inboard symmetry of the upper and lower ends of box and the fixed connection of the apron of the front end right side of box;
[0006] Further comprising:
[0007] The inboard of the upper and lower ends of box is respectively provided with the upper clamp and lower clamp that are attached to the fixed block, and the bolt formed by screw rod and nut is arranged in the upper clamp and lower clamp, and temperature control adjusting structure is arranged outside the screw rod.
[0008] Preferably, the rear end inboard of the box is rotatably connected with a box cover, and a sealing gasket is fixedly attached to the outside of the box cover and closely attached to the box, and a limiting strip is attached to the rear side of the upper right end of the box cover and rotatably connected to the box, and a display and a controller are embedded and installed in the rear end inboard of the box cover.
[0009] Preferably, the upper clamp and lower clamp are respectively embedded and attached with upper clamp blocks and lower clamp blocks, and the screw rod and nut are respectively embedded and attached in the upper clamp blocks and lower clamp blocks.
[0010] Preferably, the outer side of the upper clamp and the lower clamp is provided with a driving assembly penetrating into the box body, and the right side of the upper clamp and the lower clamp is fixedly provided with a torque sensor through a hoop and a screw.
[0011] Preferably, the surrounding plate is fixed with a partition plate arranged in close contact with the box body at equal intervals, and the surrounding plate is provided with upper clamping blocks and lower clamping blocks supported by the partition plate at equal intervals, and the right end rear side of the surrounding plate is fixedly attached with an identification sticker.
[0012] Preferably, the temperature control adjusting structure comprises a temperature sensor, a heating pipe, a protective net, a liquid nitrogen tank, a connecting pipe and an electric valve, the temperature sensor is inlaidly installed on the right upper end inner side of the box body, the electric valve is arranged above the front of the temperature sensor and inlaidly installed on the box body, and the heating pipe, the protective net, the liquid nitrogen tank and the connecting pipe for temperature rising and falling are arranged on the inner side of the middle part and the left lower side of the box body.
[0013] Preferably, the heating pipe is inlaidly installed on the front end middle part inner side of the box body, the protective net is fixedly connected with the box body outside the heating pipe, the liquid nitrogen tank is installed on the left lower side of the box body, and the connecting pipe is threadedly connected between the box body and the liquid nitrogen tank.
[0014] Compared with the prior art, the bolt torsional fatigue test device has the advantages that the bolt in the torsional fatigue test can be shielded and splashed, the safety is high, bolts of different sizes can be subjected to torsional fatigue test, and the bolts in the torsional fatigue test can be placed in different temperature environments.
[0015] 1. The box body, the box cover, the limiting strip and the upper clamp are arranged, the rear end inner side of the box body is rotatably connected with the box cover, the right upper end rear side of the box cover is in close contact with the limiting strip rotatably connected with the box body, the upper clamp and the lower clamp connected with the driving assembly are arranged on the inner sides of the upper and lower ends of the box body, and the screw and the nut are arranged in the upper clamp and the lower clamp, so that the bolt in the torsional fatigue test can be shielded and splashed, and the safety is high.
[0016] 2. The upper clamp, the lower clamp, the upper clamping block and the lower clamping block are arranged, the upper clamping block and the lower clamping block are inlaidly arranged in the upper clamp and the lower clamp respectively, the screw and the nut are inlaidly arranged in the upper clamping block and the lower clamping block respectively, the surrounding plate is fixedly connected with the front end right side of the box body, and the upper clamping blocks and the lower clamping blocks are arranged in the surrounding plate at equal intervals and separated by the partition plate, so that bolts of different sizes can be subjected to torsional fatigue test.
[0017] 3. The utility model provides temperature sensor, heating pipe, liquid nitrogen tank and connecting pipe are provided with, because the temperature sensor and electric valve are inlaidly installed in the upper end inside of the box body, the display and controller are inlaidly installed in the rear end inside of the box cover, and the heating pipe is fixedly connected in the outside of screw rod in the inside of the middle part of the box body, the protective net is set up with the fixed connection of the box body outside heating pipe, the liquid nitrogen tank is connected with the box body through the connecting pipe, therefore the bolt of torsional fatigue experiment is in different temperature environment. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model;
[0019] Figure 2 It is the front view section structure schematic diagram of the utility model;
[0020] Figure 3 It is the top view section structure schematic diagram of the utility model;
[0021] Figure 4 It is the utility model Figure 2 It is the enlarged structure schematic diagram of A place in the utility model;
[0022] Figure 5 It is the front view three-dimensional structure schematic diagram of the upper clamp and lower clamp connection of the utility model.
[0023] In the drawing: 1, box body;2, box cover;3, sealing washer;4, limiting strip;5, fixed block;6, upper clamp;7, lower clamp;8, upper clamp block;9, lower clamp block;10, screw;11, nut;12, drive assembly;13, torsion sensor;14, display;15, controller;16, coaming;17, partition;18, temperature sensor;19, heating pipe;20, protective net;21, liquid nitrogen tank;22, connecting pipe;23, electric valve;24, identification paste. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of the utility model.
[0025] Please refer to Figures 1-5The utility model provides a technical scheme: a bolt torsional force fatigue experiment device, including box 1, box cover 2, gasket 3, limit strip 4, fixed block 5, upper clamp 6, lower clamp 7, upper clamping block 8, lower clamping block 9, screw rod 10, nut 11, drive assembly 12, torque sensor 13, display 14, controller 15, coaming 16, baffle 17, temperature sensor 18, heating tube 19, protective net 20, liquid nitrogen tank 21, connecting pipe 22, electric valve 23 and identification paste 24, the fixed block 5 of symmetrical fixed inside both ends of box 1 and the coaming 16 of fixed connection of right side front end of box 1, the upper clamp 6 and lower clamp 7 that are provided with with fixed block 5 adhere to the inside both ends of box 1 respectively, and the bolt that is formed with screw rod 10 and nut 11 is provided with in upper clamp 6 and lower clamp 7, and screw rod 10 is provided with temperature control adjusting structure outside, and temperature control adjusting structure includes temperature sensor 18, heating tube 19, protective net 20, liquid nitrogen tank 21, connecting pipe 22 and electric valve 23, and the inlaid mounting of temperature sensor 18 is provided with in the inside right upper end of box 1.
[0026] In order to solve the problem that the bolt in the torsional fatigue experiment is not convenient to shield and splash, the safety is limited, and the bolt of different sizes is not convenient to carry out the torsional fatigue experiment, and the bolt in the torsional fatigue experiment is difficult to be in different temperature environment in the prior art, therefore, the technical scheme is as follows, Figure 1 、 Figure 3 、 Figure 4 and Figure 5 , the operator can first rotate the limit strip 4 connected to the rear end of the box 1, disconnect the limit strip 4 and the box cover 2 connected to the inside of the rear end of the box 1, then rotate the box cover 2, disconnect the box cover 2 from the box 1, then install the bolt to be subjected to the torsional fatigue experiment in the upper clamp 6 and the lower clamp 7 provided on the upper and lower ends of the box 1, so that the screw rod 10 provided on the upper end of the bolt is nested and penetrates into the upper clamp 6, the lower clamp 7, the upper clamping block 8 and the lower clamping block 9, and the box 1 provided on the lower end of the bolt is threaded connected to the outside of the screw rod 10, so that the screw rod 10 and the nut 11 are respectively nested and connected with the upper clamping block 8 and the lower clamping block 9, so as to complete the limitation of the bolt, and the box cover 2 and the limit strip 4 can be rotated in turn to restore the original position, so that the box cover 2 shields the box 1 under the limitation of the limit strip 4, so as to shield and splash the bolt in the later torsional fatigue experiment, and the safety is high.
[0027] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5, then the controller 15 embedded and installed in the rear end of the box cover 2 can control the driving assembly 12 connected to the upper clamp 6 and the lower clamp 7 and the torque sensor 13 fixed to the upper clamp 6 and the lower clamp 7 through the hoop and the screw to cooperate and work, so that the driving assembly 12 drives the upper clamp 6 and the lower clamp 7 to rotate under the abutting limit of the fixed block 5, so that the torque sensor 13 senses the angle of rotation, and the data sensed by the torque sensor 13 is displayed on the display 14 embedded and installed in the upper rear end of the box cover 2, thereby achieving the purpose of torque fatigue test of the bolt, and in the process of using the experimental device, the coaming 16 is fixedly connected to the right front end of the box body 1, the partition plates 17 are fixedly connected at equal intervals in the coaming 16, and the upper clamp blocks 8 and the lower clamp blocks 9 are placed in the coaming 16 through the partition plates 17, and the identification sticker 24 is fixedly connected to the right rear side of the coaming 16, so that the corresponding upper clamp blocks 8 and lower clamp blocks 9 can be selected according to the size of the bolt, thereby facilitating the torque fatigue test of bolts of different sizes;
[0028] As Figure 1 , Figure 2 and Figure 3 Figure 4 Figure 5 Figure 1 Figure 2 Figure 3 , in the process of torque fatigue test of the bolt, the operator can control the temperature sensor 18 embedded and installed in the upper right end of the box body 1 and the display 14 embedded and installed in the upper end of the box cover 2 through the controller 15 to cooperate and work, so that the temperature sensor 18 senses the temperature in the box body 1, and the display 14 displays the data sensed by the temperature sensor 18, so that the operator knows the temperature in the box body 1, and then the operator can control the heating pipe 19 embedded and installed in the middle of the box body 1 to work, so that the heating pipe 19 heats and dissipates heat through the protective net 20 arranged outside the heating pipe 19, so that the box body 1 is heated under the shielding and sealing of the box cover 2 and the sealing gasket 3 embedded and fixed to the box cover 2, or the liquid nitrogen tank 21 arranged on the left side of the box body 1 can be twisted, so that the liquid nitrogen tank 21 is connected to the box body 1 through the connecting pipe 22, so that the liquid in the liquid nitrogen tank 21 enters the box body 1 to cool the temperature in the box body 1, thereby achieving the purpose of making the bolt in the torque fatigue test in different temperature environments, so as to make the bolt torque test accurate, and after the bolt torque test, the electric valve 23 can be controlled by the controller 15 to work to discharge the cold air and hot air in the box body 1, to avoid hurting the operator later, and the above-mentioned electrical elements are all prior art, which will not be described in detail here.
[0029] The content not described in detail in the specification belongs to the prior art known to those skilled in the art, the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.
[0030] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A bolt torque fatigue test device, comprising a box (1), fixed blocks (5) symmetrically fixed on the inner sides of the upper and lower ends of the box (1), and a coaming (16) fixedly connected to the right front end of the box (1); characterized in that Further comprising: The inner sides of the upper and lower ends of the box (1) are respectively provided with upper and lower clamps (6) and (7) which are in close contact with the fixed blocks (5), and the inner sides of the upper and lower clamps (6) and (7) are provided with screws (10) and nuts (11) which constitute a bolt, and the outer side of the screw (10) is provided with a temperature control adjusting structure.
2. The device for testing the fatigue of a bolt according to claim 1, wherein: The rear end of the box (1) is rotatably connected with a box cover (2), and the outer side of the box cover (2) is fixedly attached with a sealing gasket (3) which is closely attached to the box (1), and the right upper end of the box cover (2) is attached with a limiting strip (4) which is rotatably connected with the box (1), and the rear end of the box cover (2) is embeddedly installed with a display (14) and a controller (15).
3. The device for testing the fatigue of a bolt according to claim 1, wherein: The inner sides of the upper and lower clamps (6) and (7) are respectively embeddedly attached with upper and lower clamping blocks (8) and (9), and the inner sides of the upper and lower clamping blocks (8) and (9) are respectively embeddedly attached with screws (10) and nuts (11).
4. The device according to claim 1, wherein: The outer sides of the upper and lower clamps (6) and (7) are respectively embeddedly attached with driving assemblies (12) which penetrate into the box (1), and the right sides of the upper and lower clamps (6) and (7) are fixedly installed with torque sensors (13) through hoops and screws.
5. The device for testing the fatigue of a bolt according to claim 1, wherein: The coaming (16) is fixedly provided with partition plates (17) which are closely attached to the box (1), and the coaming (16) is embeddedly provided with upper and lower clamping blocks (8) and (9) which are supported by the partition plates (17), and the right rear side of the coaming (16) is fixedly attached with an identification sticker (24).
6. The device according to claim 1, wherein: The temperature control adjusting structure comprises a temperature sensor (18), a heating pipe (19), a protective net (20), a liquid nitrogen tank (21), a connecting pipe (22) and an electric valve (23), the right upper end of the box (1) is embeddedly installed with the temperature sensor (18), the front upper side of the temperature sensor (18) is embeddedly installed with the electric valve (23), the middle inner side and the left lower side of the box (1) are provided with the heating pipe (19), the protective net (20), the liquid nitrogen tank (21) and the connecting pipe (22) which are used for temperature adjustment.
7. The apparatus according to claim 6, wherein: The heating pipe (19) is embeddedly installed on the front middle inner side of the box (1), the outer side of the heating pipe (19) is fixedly connected with the protective net (20), the left lower side of the box (1) is installed with the liquid nitrogen tank (21), and the connecting pipe (22) which is screwedly connected with the box (1) and the liquid nitrogen tank (21) is arranged between the box (1) and the liquid nitrogen tank (21).