Dynamic and static torsion test system

Abstract

The utility model discloses a dynamic and static torsion test system, which is applied to the field of component strength performance test and detection, and comprises a base, the top of the base is bolted with a torsion actuator, and the output end of the torsion actuator is fixedly connected with a coupler; according to the electro-hydraulic servo closed-loop control principle and the hydrostatic bearing technology adopted by the torsion actuator, the electro-hydraulic servo torsion actuator has the characteristics of high response speed, high precision, wide frequency band, multiple waveform types and the like, can perform torque and torsion angle control tests, is stable and reliable in work, can apply regular waveform and arbitrary waveform tests to a test piece, can switch the torque state and the torsion angle state at will, and is suitable for large-scale popularization and application. According to the utility model, the adapter is arranged on the fixture, and different adapters are matched according to the interface sizes of different parts and different parts, so that the whole fixture does not need to be replaced, the maintenance cost of the fixture is reduced, the proper fixture can be quickly switched, and the applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of strength performance testing and inspection of components, and in particular to a dynamic and static torsion testing system. Background Technology

[0002] A torsion testing apparatus, also known as a torsion testing machine, is an experimental device used to measure the mechanical properties of materials or components under torsional loads. Its core function is to evaluate key parameters of materials, such as torsional strength, shear modulus, and yield strength, by applying torque and measuring the deformation response. It is widely used in materials research and development, quality control, and engineering structural design.

[0003] A search of Chinese patents revealed publication number CN217688357U, which discloses a rigid shaft torsion testing device. The device includes a torsion test stand and further comprises: a first mounting bracket, a supporting square tube mounted above the first mounting bracket, an elastic clamp mounted on the upper part of the supporting square tube, a second mounting bracket mounted in the middle of the elastic clamp, a driven shaft flange fixedly connected to the second mounting bracket, a first universal joint mounted at one end of the driven shaft flange, and a first mounting fixture mounted on the first universal joint; a mounting base is provided on the torsion test stand, a middle-layer bracket is mounted on the upper part of the mounting base, an upper pressure plate is connected to the middle-layer bracket, a torque drive assembly is fixedly connected to one end of the upper pressure plate, a drive shaft flange is fixedly connected to the upper pressure plate, a second universal joint is fixedly connected to the drive shaft flange, and a second mounting fixture is fixedly connected to the second universal joint.

[0004] Traditional torsion testing equipment is mostly static and cannot apply forward and reverse torque fatigue testing to components at a certain frequency. It can only test one component at a time, the fixture cannot accommodate more samples, the fixture has high maintenance costs, low frequency, and long testing time.

[0005] Other testing devices on the market use a single testing method, namely: directly twisting the component to break under static test conditions and observing the maximum torque value, or continuously under dynamic fatigue test conditions until the component is fatigued to fracture and observing the fatigue life curve. Such tests cannot simulate the actual service conditions of materials and thus cannot provide effective data support for the research and development of new materials. In order to solve the above problems, we propose a dynamic and static torsion testing system. Utility Model Content

[0006] The purpose of this invention is to provide a dynamic and static torsion testing system, which has the advantages of having both dynamic and static testing modes and high applicability.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dynamic and static torsion testing system, including a base, a torsion actuator bolted to the top of the base, a coupling fixedly connected to the output end of the torsion actuator, a rotating shaft fixedly connected to the other end of the coupling, a first bearing seat mounted on the surface of the rotating shaft and bolted to the top of the base, a clamp mounted on the rotating shaft, an adapter bolted to the inner wall of the clamp, a T-shaped groove opened on the top of the base, a T-shaped block slidably connected to the inner wall of the T-shaped groove, a tailstock bolted to the top of the T-shaped block, a drive mechanism provided at the bottom of the tailstock, and a torque sensor mounted on the surface of the tailstock.

[0008] Using the above technical solution, through the electro-hydraulic servo closed-loop control principle, the torsion actuator adopts hydrostatic bearing technology, which has the characteristics of fast response speed, high precision, wide bandwidth, and multiple waveform types. It can perform torque and torsion angle control tests, and its operation is stable and reliable. Regular waveform and arbitrary waveform tests can be applied to the test piece. Its torque and torsion angle states can be switched arbitrarily, which improves practicality and applicability. By setting adapters on the fixture, different adapters can be matched according to the interface size of different parts and different parts, without replacing the entire fixture, reducing fixture maintenance costs. It can quickly switch to suitable fixtures, which improves applicability.

[0009] The present invention is further configured such that: a support plate is bolted to the surface of the base, a threaded hole is provided at the bottom of the support plate, a screw is threaded to the inner wall of the threaded hole, a washer is rotatably connected to the bottom of the screw, and a first nut is fixedly sleeved on the surface of the screw.

[0010] By adopting the above technical solution, the screw is rotated by loosening the second nut and then rotating the first nut. The rotation of the screw changes the height of the base, which can be adjusted according to the level of the device, making it convenient to use.

[0011] The present invention is further configured such that: the driving mechanism includes a motor, the motor is bolted to the surface of the base, a lead screw is installed at the output end of the motor, a second bearing seat is installed at the other end of the lead screw, and the second bearing seat is bolted to the inner wall of the base; a nut is threaded to the surface of the lead screw, and the top of the nut is bolted to the bottom of the tailstock.

[0012] By adopting the above technical solution, a drive mechanism is set up, and the rotation of the motor causes the lead screw to move the lead screw nut. The movement of the lead screw nut causes the tailstock to move the torque sensor. This can be adjusted according to the length of the parts, thus improving applicability.

[0013] The present invention is further configured such that a protective cover is bolted to the top of the base.

[0014] By adopting the above technical solution and setting up a protective cover, it is possible to prevent the debris generated when parts break from splashing out and accidentally injuring the operator.

[0015] The present invention is further configured such that a triangular plate is bolted between the support plate and the base.

[0016] By adopting the above technical solution, the stability of the support plate is improved by setting a triangular plate.

[0017] The present invention is further configured such that the surface of the protective cover is provided with a transparent glass window.

[0018] By adopting the above technical solution and setting up a transparent glass window, the test status of the components can be observed in real time.

[0019] The present invention is further configured such that a mesh cover is installed on the surface of the torsion actuator.

[0020] By adopting the above technical solution, the torsion actuator is protected by a mesh cover, thus improving its installability.

[0021] The present invention is further configured such that a second nut is threaded onto the surface of the screw.

[0022] By adopting the above technical solution, the screw is fixed by setting a second nut, thereby improving stability.

[0023] In summary, this utility model has the following beneficial effects:

[0024] 1. This utility model utilizes the electro-hydraulic servo closed-loop control principle. The torsion actuator employs hydrostatic bearing technology, which features fast response speed, high precision, wide bandwidth, and multiple waveform types. It can perform torque and torsion angle control tests, operates smoothly and reliably, and can apply regular waveform and arbitrary waveform tests to the test piece. Its torque and torsion angle states can be switched arbitrarily, improving its practicality and applicability.

[0025] 2. This utility model sets an adapter on the fixture, and matches different adapters according to the interface size of different parts and different parts, without having to replace the entire fixture, which reduces the fixture maintenance cost, enables quick switching to suitable fixtures, and improves applicability. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural view of the present invention;

[0027] Figure 2 This is a partial three-dimensional structural view of the present invention;

[0028] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0029] Figure 4 This is a top sectional view of the structure of this utility model;

[0030] Figure 5 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0031] Figure 6 This is a utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0032] Reference numerals: 1. Base; 2. Torque actuator; 3. Coupling; 4. Rotating shaft; 5. First bearing seat; 6. Fixture; 7. Adapter; 8. T-slot; 9. T-block; 10. Tailstock; 11. Drive mechanism; 12. Torque sensor; 13. Support plate; 14. Threaded hole; 15. Screw; 16. Pad; 17. First nut; 18. Motor; 19. Lead screw; 20. Second bearing seat; 21. Nut; 22. Protective cover; 23. Triangular plate; 24. Transparent glass window; 25. Mesh cover; 26. Second nut. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Example 1:

[0035] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The dynamic and static torsion testing system includes a base 1, a torsion actuator 2 bolted to the top of the base 1, a coupling 3 fixedly connected to the output end of the torsion actuator 2, a rotating shaft 4 fixedly connected to the other end of the coupling 3, a first bearing seat 5 mounted on the surface of the rotating shaft 4 and bolted to the top of the base 1, a clamp 6 mounted on the rotating shaft 4, an adapter 7 bolted to the inner wall of the clamp 6, a T-slot 8 opened on the top of the base 1, a T-block 9 slidably connected to the inner wall of the T-slot 8, a tailstock 10 bolted to the top of the T-block 9, a drive mechanism 11 set at the bottom of the tailstock 10, and a torque sensor 12 mounted on the surface of the tailstock 10. Through the electro-hydraulic servo closed-loop control principle, the torsion actuator 2 adopts hydrostatic bearing technology, featuring fast response speed, high precision, wide bandwidth, and multiple waveform types. It can perform torque and torsion angle control tests, operates smoothly and reliably, and can apply regular waveform and arbitrary waveform tests to the specimen. Its torque and torsion angle states can be switched arbitrarily, improving practicality and applicability.

[0036] refer to Figure 1 and Figure 3The drive mechanism 11 includes a motor 18, which is bolted to the surface of the base 1. A lead screw 19 is installed at the output end of the motor 18, and a second bearing seat 20 is installed at the other end of the lead screw 19. The second bearing seat 20 is bolted to the inner wall of the base 1. A nut 21 is threaded onto the surface of the lead screw 19, and the top of the nut 21 is bolted to the bottom of the tailstock 10. By setting up the drive mechanism 11, the rotation of the motor 18 causes the lead screw 19 to move the nut 21. The movement of the nut 21 causes the tailstock 10 to move the torque sensor 12. This can be adjusted according to the length of the parts, improving applicability.

[0037] refer to Figure 1 A protective cover 22 is bolted to the top of the base 1. By setting the protective cover 22, the debris generated when the parts are twisted off is prevented from splashing out and accidentally injuring the operator.

[0038] refer to Figure 1 The protective cover 22 has a transparent glass window 24 on its surface, which allows for real-time observation of the test status of the components.

[0039] refer to Figure 1 , Figure 2 and Figure 3 A mesh cover 25 is installed on the surface of the torsion actuator 2. By setting the mesh cover 25, the torsion actuator 2 is protected and the installation is improved.

[0040] Example 2:

[0041] refer to Figure 1 , Figure 3 and Figure 6 A support plate 13 is bolted to the surface of the base 1. A threaded hole 14 is opened at the bottom of the support plate 13. A screw 15 is threaded to the inner wall of the threaded hole 14. A pad 16 is rotatably connected to the bottom of the screw 15. A first nut 17 is fixedly sleeved on the surface of the screw 15.

[0042] refer to Figure 1 and Figure 2 A triangular plate 23 is bolted between the support plate 13 and the base 1. By setting the triangular plate 23, the stability of the support plate 13 is improved.

[0043] refer to Figure 6 The screw 15 is threaded with a second nut 26. By setting the second nut 26, the screw 15 is fixed and its stability is improved.

[0044] Brief description of the usage process: First, turn on the motor 18. The rotation of the motor 18 drives the lead screw 19, causing the lead screw nut 21 to move. The movement of the lead screw nut 21 drives the tailstock 10 to move, and the movement of the tailstock 10 drives the torque sensor 12 to move. Move the torque sensor 12 to the right to increase the distance between the torque sensor 12 and the clamp 6. Then, install one end of the component onto the torque sensor 12. Then, the motor 18 rotates in the opposite direction, causing the torque sensor 12 to drive the component to move, so that the spline part of the other end of the component is inserted into the spline inside the adapter 7, fixing the component. It can be matched according to different spline types. The adapter 7 is sufficient; there is no need to replace the entire fixture 6 body. Then, the torsion actuator 2 is opened and tested. During the test, the torque sensor 12 transmits the test results to the controller, which displays them on the screen. The torsion actuator 2 can provide forward and reverse torque fatigue tests to the parts. By adjusting the position of the tailstock 10, parts of different lengths can be tested. By loosening the second nut 26 and then rotating the first nut 17, the screw 15 rotates. The rotation of the screw 15 changes the height of the base 1, which can be adjusted according to the level of the device for convenient use.

[0045] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0046] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A dynamic and static torsion testing system, comprising a base (1), characterized in that, A torsion actuator (2) is bolted to the top of the base (1). A coupling (3) is fixedly connected to the output end of the torsion actuator (2). A rotating shaft (4) is fixedly connected to the other end of the coupling (3). A first bearing seat (5) is installed on the surface of the rotating shaft (4), and the first bearing seat (5) is bolted to the top of the base (1). A clamp (6) is installed on the rotating shaft (4). An adapter (7) is bolted to the inner wall of the clamp (6). A T-shaped groove (8) is opened on the top of the base (1). A T-shaped block (9) is slidably connected to the inner wall of the T-shaped groove (8). A tailstock (10) is bolted to the top of the T-shaped block (9). A drive mechanism (11) is provided at the bottom of the tailstock (10). A torque sensor (12) is installed on the surface of the tailstock (10).

2. The dynamic and static torsion testing system according to claim 1, characterized in that, A support plate (13) is bolted to the surface of the base (1). A threaded hole (14) is opened at the bottom of the support plate (13). A screw (15) is threaded to the inner wall of the threaded hole (14). A pad (16) is rotatably connected to the bottom of the screw (15). A first nut (17) is fixedly sleeved on the surface of the screw (15).

3. The dynamic and static torsion testing system according to claim 1, characterized in that, The drive mechanism (11) includes a motor (18), which is bolted to the surface of the base (1). A lead screw (19) is installed at the output end of the motor (18). A second bearing seat (20) is installed at the other end of the lead screw (19), and the second bearing seat (20) is bolted to the inner wall of the base (1). A nut (21) is threaded to the surface of the lead screw (19), and the top of the nut (21) is bolted to the bottom of the tailstock (10).

4. The dynamic and static torsion testing system according to claim 1, characterized in that, A protective cover (22) is bolted to the top of the base (1).

5. The dynamic and static torsion testing system according to claim 2, characterized in that, A triangular plate (23) is bolted between the support plate (13) and the base (1).

6. The dynamic and static torsion testing system according to claim 4, characterized in that, The surface of the protective cover (22) is provided with a transparent glass window (24).

7. The dynamic and static torsion testing system according to claim 1, characterized in that, The surface of the torsion actuator (2) is fitted with a mesh cover (25).

8. The dynamic and static torsion testing system according to claim 2, characterized in that, The screw (15) is threaded with a second nut (26).

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