Dynamic torsion testing machine

Abstract

The utility model discloses a dynamic torsion testing machine, relates to the technical field of torsion testing machines, and aims to solve the technical problem that when a current traditional testing jig is connected with a disc-shaped part for a torsion test, the current traditional testing jig is easily influenced by stress at the end part of a connecting shaft of the testing jig to generate a test error and further influence the accuracy of a test result. A motor frame and a mounting seat are detachably mounted on two sides of the top of the experiment table respectively, a driving component is detachably mounted on one side of the motor frame, a torque sensor is detachably mounted on one side of the mounting seat, and a connecting component is detachably mounted at one end, away from the mounting seat, of the torque sensor. A sample part is detachably connected between the connecting assembly and the driving assembly, the connecting assembly comprises a testing jig B and a flange plate which are symmetrically arranged, and an inserting shaft A is arranged in the middle of the face, facing the flange plate, of the testing jig B. The torsion testing device has the advantages that the stress is uniformly distributed in the torsion transmission process, and the accuracy of a test result is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of torsion testing machines, and more specifically, to a dynamic torsion testing machine. Background Art

[0002] A dynamic torsion testing machine, also known as a dynamic torsion tester, is mainly used to detect the mechanical properties of various materials or parts under the action of dynamic torque. It can simulate the dynamic torque changes in the actual working environment, so as to evaluate the durability, reliability and safety performance of materials or parts. This equipment is widely used in the fields of aviation, automobiles, mechanical equipment, metallurgy, electronics, etc., and is of great significance for the research and development, production and quality control of products.

[0003] At present, when using a torsion testing machine to test the mechanical properties of disk-shaped parts, for disk-shaped parts of different sizes or different position testing requirements, it is often necessary to replace the corresponding test fixtures. The installation method of traditional test fixtures is usually centered and clamped by a chuck. This method will cause uneven stress distribution at the end of the connecting shaft of the test fixture, resulting in test errors easily affected by the stress at the end of the connecting shaft of the test fixture when the test fixture is connected to the disk-shaped part for torsion testing, and further affecting the accuracy of the test results. In view of this, we propose a dynamic torsion testing machine. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a dynamic torsion testing machine to solve the technical problem that when the traditional test fixture is connected to the disk-shaped part for torsion testing, it is easily affected by the stress at the end of the connecting shaft of the test fixture, resulting in test errors, and further affecting the accuracy of the test results.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: A dynamic torsion testing machine includes a test bench with a motor bracket and a mounting seat detachably installed on both sides of the top;

[0006] A driving component is detachably installed on one side of the motor bracket, a torque sensor is detachably installed on one side of the mounting seat, and a connecting component is detachably installed at the end of the torque sensor away from the mounting seat;

[0007] A sample component is detachably connected between the connecting component and the driving component. The connecting component includes symmetrically arranged test fixture B and a flange. On the side of the test fixture B facing the flange, a plug shaft A is centrally constructed. On the side of the flange facing the test fixture B, a plug shaft B is centrally constructed. A connecting component is detachably installed between the plug shaft A and the plug shaft B, and annular array structures are constructed at the opposite ends of the plug shaft A and the plug shaft B;

[0008] The shaft coupling structure includes a spiral rod body with end structures connected to the insertion shaft A and the insertion shaft B, and arc-shaped tooth plates are arranged in a circular array on the outer edge surface of the spiral rod body;

[0009] The connecting component includes a coupling with a circular plate centrally arranged inside, and spiral grooves for fitting the insertion of the spiral rod body and the arc-shaped tooth plates are formed in a circular array inside the circular plate.

[0010] The utility model designs the insertion shaft A, the insertion shaft B and the spiral rod body. After fixing the sample component, the connection is realized through the insertion fit of the spiral rod body and the spiral groove body, and by designing the spiral rod body and the spiral groove body as mutually matching spiral structures, when the insertion shaft A and the insertion shaft B are connected to the coupling, a certain angle of rotation is required, so as to realize the stable connection of the insertion shaft A, the insertion shaft B and the coupling in the axial direction, thereby realizing the stable transmission of torque. By arranging the spiral rod bodies in a circular array, it is beneficial to make the stress distribution uniform during the torque transmission process, thus ensuring the accuracy of the test results.

[0011] Preferably, the coupling is in a C-shaped structure, and a semi-circular groove is formed in the middle of the coupling. Bolts for contracting the C-shaped opening to clamp and fix the insertion shaft A and the insertion shaft B are symmetrically arranged inside the coupling.

[0012] Preferably, the sample component includes a sample body with insertion holes A symmetrically formed inside, and insertion holes B are symmetrically formed inside the sample body, and the insertion holes B and the insertion holes A are arranged staggeredly.

[0013] Preferably, insertion rods B are symmetrically formed on one side of the test fixture B away from the insertion shaft A, and the ends of the insertion rods B away from the test fixture B are detachably inserted into the insertion holes A, and one side of the flange plate away from the insertion shaft B is detachably connected to the torque sensor.

[0014] Preferably, the driving component includes a motor body fixedly connected with a driving shaft at one end, a test fixture A is detachably installed on one side of the driving shaft, and insertion rods A detachably inserted into the insertion holes B are symmetrically formed on one side of the test fixture A away from the driving shaft.

[0015] Preferably, a control box is arranged at the bottom of the experimental table, and a panel cover and a protective cover are detachably arranged on the top of the experimental table.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model designs a plug shaft A, a plug shaft B and a spiral rod body. After fixing the sample component, the connection is realized through the plug-in fit between the spiral rod body and the spiral groove body. By designing the spiral rod body and the spiral groove body into a mutually matching spiral structure, when the plug shaft A and the plug shaft B are connected to the coupling, a certain angle of rotation is required, so as to realize the stable connection between the plug shaft A, the plug shaft B and the coupling in the axial direction, thereby realizing the stable transmission of torque. By arranging the spiral rod bodies in an annular array, it is beneficial to make the stress distribution uniform during the torque transmission process, thus ensuring the accuracy of the test results, and solving the problem that when the traditional test fixture connects the disc-shaped parts for torque test, it is easily affected by the stress at the end of the connecting shaft of the test fixture and generates test errors, which in turn affects the accuracy of the test results.

[0018] 2. The utility model also constructs arc-shaped tooth plates in an annular array on the outer edge surface of the spiral rod body. The arrangement of the arc-shaped tooth plates is beneficial to increase the contact area between the spiral rod body and the spiral groove body, thereby further realizing the stable transmission of torque, making the stress distribution uniform during the torque transmission process, thus ensuring the accuracy of the test results. At the same time, the arc-shaped tooth plates are also of spiral structure, which is beneficial to further realize the stable connection between the plug shaft A, the plug shaft B and the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is the utility model Figure 1 schematic structural diagram in the state where the middle panel cover and the protective cover are removed;

[0021] Figure 3 is a schematic structural diagram of the drive assembly of the utility model;

[0022] Figure 4 is a schematic structural diagram of the sample component of the utility model;

[0023] Figure 5 is a split schematic diagram of the connection assembly of the utility model;

[0024] Figure 6 is a cross-sectional view of the connection component of the utility model;

[0025] Figure 7 is the utility model Figure 5 enlarged schematic diagram of the structure at A in.

[0026] Description of the reference numerals in the drawings:

[0027] 1. Control box; 2. Test bench; 3. Panel cover; 4. Protective cover; 5. Motor frame; 6. Mounting seat; 7. Driving assembly; 701. Driving shaft; 702. Test fixture A; 703. Plug rod A; 8. Sample component; 801. Sample body; 802. Socket A; 803. Socket B; 9. Connecting assembly; 901. Test fixture B; 902. Plug rod B; 903. Plug shaft A; 904. Flange; 905. Plug shaft B; 906. Spiral rod; 907. Arc-shaped toothed plate; 10. Connecting component; 1001. Coupling; 1002. Circular plate; 1003. Spiral groove; 11. Torque sensor. Detailed implementation mode

[0028] As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 shown, a dynamic torsion testing machine related to the present utility model includes a test bench 2 with a motor frame 5 and a mounting seat 6 detachably installed on both sides of the top. One side of the motor frame 5 is detachably installed with a driving assembly 7, one side of the mounting seat 6 is detachably installed with a torque sensor 11, one end of the torque sensor 11 away from the mounting seat 6 is detachably installed with a connecting assembly 9, a sample component 8 is detachably connected between the connecting assembly 9 and the driving assembly 7, and the connecting assembly 9 includes symmetrically arranged test fixtures B901 and a flange 904. A plug shaft A903 is centrally constructed on the surface of the test fixture B901 facing the flange 904, a plug shaft B905 is centrally constructed on the surface of the flange 904 facing the test fixture B901, a connecting component 10 is detachably installed between the plug shaft A903 and the plug shaft B905, and both opposite ends of the plug shaft A903 and the plug shaft B905 are provided with a coupling structure in an annular array. The coupling structure includes a spiral rod 906 with ends connected to the plug shaft A903 and the plug shaft B905. Arc-shaped toothed plates 907 are arranged in an annular array on the outer edge surface of the spiral rod 906. The connecting component 10 includes a coupling 1001 with a circular plate 1002 centrally constructed inside. A spiral groove 1003 adapted for the insertion of the spiral rod 906 and the arc-shaped toothed plate 907 is formed in an annular array inside the circular plate 1002.

[0029] In an embodiment of the present utility model, as Figure 5 and Figure 6 shown, the coupling 1001 has a C-shaped structure, and a semi-circular groove is formed in the middle of the coupling 1001. Bolts for contracting the C-shaped opening to clamp and fix the plug shaft A903 and the plug shaft B905 are symmetrically arranged inside the coupling 1001.

[0030] In an embodiment of the present utility model, as Figures 2 - 5As shown, the sample component 8 includes a sample body 801 with jack A802 symmetrically formed inside. Inside the sample body 801, jack B803 is symmetrically formed. Jack B803 and jack A802 are arranged staggeredly. On the side of the test fixture B901 away from the insertion shaft A903, plug rod B902 is symmetrically constructed. The end of the plug rod B902 away from the test fixture B901 is detachably inserted into the jack A802. The side of the flange 904 away from the insertion shaft B905 is detachably connected to the torque sensor 11. The driving assembly 7 includes a motor body with a driving shaft 701 fixedly connected to one end. On one side of the driving shaft 701, a test fixture A702 is detachably installed. On the side of the test fixture A702 away from the driving shaft 701, plug rod A703 is symmetrically constructed and is detachably inserted into the jack B803.

[0031] In an embodiment of the present invention, as Figure 1 shown, a control box 1 is provided at the bottom of the experimental table 2, and a panel cover 3 and a protective cover 4 are detachably provided on the top of the experimental table 2.

[0032] Working principle: This embodiment provides a dynamic torque testing machine. When in use, first insert the plug rod A703 into the jack B803, then rotate the spiral rod body 906 at the ends of the insertion shaft A903 and the insertion shaft B905 and insert it into the spiral groove body 1003. Then insert the plug rod B902 into the jack A802. Finally, connect the flange 904 to the torque sensor 11. By starting the motor body, the driving shaft 701 rotates, so as to apply torque to the sample body 801 through the insertion of the plug rod A703 and the jack B803. Through the insertion of the plug rod B902 and the jack A802, the torque received by the sample body 801 is conducted to the insertion shaft A903, and the torque is stably conducted to the insertion shaft B905 through the connecting component 10, so that the torque can be detected by the torque sensor 11.

[0033] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A dynamic torsion testing machine, characterized in that, An experimental bench (2) with a motor bracket (5) and a mounting seat (6) detachably installed on both sides of the top respectively; On one side of the motor bracket (5), a driving component (7) is detachably installed. On one side of the mounting seat (6), a torque sensor (11) is detachably installed. At one end of the torque sensor (11) away from the mounting seat (6), a connecting component (9) is detachably installed; A sample component (8) is detachably connected between the connecting component (9) and the driving component (7). The connecting component (9) includes symmetrically arranged test fixtures B (901) and a flange plate (904). On one side of the test fixture B (901) facing the flange plate (904), a plug shaft A (903) is centrally constructed. On one side of the flange plate (904) facing the test fixture B (901), a plug shaft B (905) is centrally constructed. A connecting member (10) is detachably installed between the plug shaft A (903) and the plug shaft B (905). And on the opposite ends of the plug shaft A (903) and the plug shaft B (905), a coupling structure is arranged in an annular array; The coupling structure includes a spiral rod body (906) whose end is connected to the plug shaft A (903) and the plug shaft B (905). On the outer edge surface of the spiral rod body (906), arc-shaped tooth plates (907) are arranged in an annular array; The connecting member (10) includes a coupling (1001) with a circular plate (1002) centrally constructed inside. Inside the circular plate (1002), spiral grooves (1003) are formed in an annular array for inserting and matching with the spiral rod body (906) and the arc-shaped tooth plates (907); 2. The dynamic torque testing machine according to claim 1, wherein, The coupling (1001) has a C-shaped structure, and a semi-circular groove is formed in the middle of the coupling (1001). Inside the coupling (1001), bolts are symmetrically arranged for shrinking the C-shaped opening to clamp and fix the plug shaft A (903) and the plug shaft B (905); 3. The dynamic torsion testing machine according to claim 1, wherein The sample component (8) includes a sample body (801) with insertion holes A (802) symmetrically opened inside. Inside the sample body (801), insertion holes B (803) are symmetrically formed. The insertion holes B (803) and the insertion holes A (802) are arranged staggeredly; 4. The dynamic torque testing machine according to claim 3, characterized in that, On the side of the test fixture B (901) away from the plug shaft A (903), plug rods B (902) are symmetrically constructed. The ends of the plug rods B (902) away from the test fixture B (901) are detachably inserted into the insertion holes A (802). The side of the flange plate (904) away from the plug shaft B (905) is detachably connected to the torque sensor (11); 5. The dynamic torque testing machine according to claim 4, characterized in that, The driving component (7) includes a motor body with a driving shaft (701) fixedly connected at one end. On one side of the driving shaft (701), a test fixture A (702) is detachably installed. On the side of the test fixture A (702) away from the driving shaft (701), plug rods A (703) are symmetrically constructed and are detachably inserted into the insertion holes B (803); 6. The dynamic torque testing machine according to claim 1, wherein A control box (1) is provided at the bottom of the test bench (2), and a panel cover (3) and a protective cover (4) are detachably provided at the top of the test bench (2).

Images