Calibrating device for horizontal force of dynamic compression-shear testing machine

Abstract

The utility model relates to the technical field of compression-shear testing machine verification, in particular to a dynamic horizontal force verification device for a compression-shear testing machine, which comprises a testing machine body, a support frame, a fixed seat, a fixed block, a shear plate, a fixed plate, an oil cylinder, a tension detection mechanism and a pressure detection mechanism, a fixing seat is fixedly arranged on the supporting frame, a fixing through groove is formed in the fixing seat, a fixing block is arranged in the fixing through groove in a sliding mode, a shearing plate is arranged on one side of the fixing block, a connecting block is fixedly arranged between the shearing plate and the fixing block, the fixing plate is arranged on one side of the fixing seat, and a force measuring sensor is fixedly arranged on the fixing plate. The oil cylinder is fixedly arranged between the fixing seat and the fixing plate, a fixing column is arranged between the fixing plate and the fixing block, the fixing column penetrates through the fixing seat and is in sliding connection with the fixing seat, and through the technical scheme, the problem that the horizontal force verification efficiency of the dynamic compression-shear testing machine is low in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of compression shear testing machine verification, in particular to a verification device for the horizontal force of a dynamic compression shear testing machine. Background Art

[0002] The load cell on the dynamic compression and shear testing machine is an important measuring device for measuring the stress of the product being tested. The accuracy of the load cell directly affects the performance test results of the product being tested. In order to ensure the accuracy and reliability of the measured force value during use, the load cell needs to be calibrated regularly.

[0003] At present, the calibration of the force sensor on the horizontal cylinder of the dynamic compression and shear testing machine is generally carried out by removing the force sensor from the horizontal cylinder and placing it on the shear plate of the testing machine. The standard force gauge is placed on it, and pressure is applied to it through the vertical cylinder of the testing machine for calibration. After the calibration is completed, the force sensor is put back on the horizontal cylinder.

[0004] There is a certain degree of uncertainty in disassembling the force sensor for calibration. First, after the removal and calibration are completed, when it is put back into the horizontal cylinder, since the sensor is fixed to the horizontal cylinder by tightening multiple bolts, the tightness of the multiple bolts directly affects the force condition of the force sensor, thereby causing a deviation between the calibration force value and the measured force value during the use of the sensor after installation. In severe cases, it will affect the accuracy of the force measurement of the product being measured, and thus affect the measurement results of the performance of the product being measured. In severe cases, products with unqualified performance may be mistakenly judged as qualified products. If unqualified products are used in projects, they may endanger the safety and life of the project. Utility Model Content

[0005] The utility model provides a device for calibrating the horizontal force of a dynamic compression and shearing test machine, which solves the problem of low calibration efficiency of the horizontal force of a dynamic compression and shearing test machine in the related art.

[0006] The technical solution of the utility model is as follows: A horizontal force calibration device for a dynamic compression shear testing machine comprises a testing machine body, a support frame, a fixing seat, a fixing block, a shear plate, a fixing plate, an oil cylinder, a tension detection mechanism and a pressure detection mechanism;

[0007] The support frame is fixedly arranged on the testing machine body;

[0008] The support frame is fixedly provided with the fixing seat, and the fixing seat is provided with a fixing slot;

[0009] The fixing block is slidably arranged in the fixing groove;

[0010] The shearing plate is arranged on one side of the fixed block, and a connecting block is fixedly arranged between the shearing plate and the fixed block;

[0011] The fixing plate is arranged on one side of the fixing seat, and a force sensor is fixedly arranged on the fixing plate;

[0012] The oil cylinder is fixedly arranged between the fixing seat and the fixing plate, a fixing column is arranged between the fixing plate and the fixing block, and the fixing column passes through the fixing seat and is slidably connected to the fixing seat;

[0013] The tension detection mechanism and the pressure detection mechanism are arranged on the testing machine body, and are used to detect the tension and pressure accuracy of the force sensor.

[0014] Preferably, the tension detection mechanism includes:

[0015] Mounting seats, two of which are fixedly provided on the testing machine body;

[0016] A reaction beam, the reaction beam being arranged on one side of the mounting seat, and having mounting shells fixedly arranged at both ends of the reaction beam;

[0017] A positioning mechanism, the positioning mechanism being provided between the mounting seat and the mounting shell and being used for positioning the mounting seat and the mounting shell;

[0018] A first dynamometer is fixedly arranged on a side wall of the reaction beam close to the shear plate.

[0019] Furthermore, the positioning mechanism includes:

[0020] a first positioning slot, the first positioning slot being provided on the mounting seat, and second positioning slots being provided on two opposite side walls of the first positioning slot;

[0021] a positioning opening, the positioning opening being provided on the side wall of the mounting housing and being aligned with the first positioning slot;

[0022] a first positioning block, wherein two first positioning blocks are slidably provided in the positioning opening, and second positioning blocks are fixedly provided on two opposite side walls of the first positioning block, and the second positioning blocks correspond one-to-one to the second positioning slots;

[0023] A relative movement mechanism is provided in the mounting housing and is used to control the relative movement of the two first positioning blocks.

[0024] Furthermore, the relative movement mechanism includes:

[0025] Positioning seats, two of which are slidably provided in the mounting housing and fixedly connected to adjacent first positioning blocks;

[0026] A positioning plate, the positioning plate being rotatably mounted on the inner wall of the mounting housing, and having two rotating shafts rotatably mounted on an eccentric position of the positioning plate;

[0027] A positioning rod, the positioning rod being hingedly arranged between the rotating shaft and the adjacent positioning seat;

[0028] A driving mechanism is provided on the mounting housing and is used to control the rotation of the positioning plate.

[0029] Furthermore, the driving mechanism includes:

[0030] A driving column, the driving column is fixedly disposed on the positioning plate, the driving column extends out of the mounting housing and is rotatably connected to a side wall of the mounting housing;

[0031] A hand wheel, the hand wheel being rotatably arranged on one side of the mounting housing;

[0032] A limiting mechanism is provided between the driving column and the hand wheel, and is used to limit the rotation angle of the hand wheel.

[0033] On the basis of the above solution, the limiting mechanism includes:

[0034] a first limiting groove, the first limiting groove being provided on a side wall of the mounting housing;

[0035] a first limiting block, the first limiting block being slidably disposed in the first limiting groove, and the first limiting block being fixedly connected to the handwheel;

[0036] a second limiting groove, the second limiting groove being provided on the hand wheel, a limiting opening being provided at the bottom of the second limiting groove, and the limiting opening passing through the first limiting block;

[0037] Wherein, the driving column passes through the limiting opening and extends into the second limiting groove;

[0038] A second limiting block is slidably disposed in the second limiting groove, and the second limiting block is fixedly connected to the driving column.

[0039] On the basis of the above solution, a support spring is sleeved on the side wall of the driving column, and two ends of the support spring are fixedly connected to the hand wheel and the bottom of the second limiting groove respectively.

[0040] On the basis of the above solution, the pressure detection mechanism includes:

[0041] A reaction plate, the reaction plate being arranged on one side of the reaction beam;

[0042] a second dynamometer, the second dynamometer being fixedly mounted on the reaction plate;

[0043] A connecting mechanism is provided on the reaction plate and is used to connect the reaction plate and the shear plate.

[0044] On the basis of the above solution, the connecting mechanism includes:

[0045] Connecting ports, two of which are respectively provided on both sides of the reaction beam, and the two connecting ports on the same side of the reaction beam are located on both sides of the shear plate;

[0046] a threaded rod, the threaded rod being rotatably mounted on the reaction plate and passing through the connecting port;

[0047] The connecting plate is arranged on both sides of the shear plate, and two threaded openings are formed on the connecting plate, and the threaded rod passes through the threaded openings through threaded engagement.

[0048] Based on the above solution, a bolt head is fixedly provided on the threaded rod.

[0049] The working principle and beneficial effects of the utility model are as follows:

[0050] 1. In the present invention, the positioning mechanism is provided so that the positioning plate can be driven to rotate by the operation of the driving mechanism, thereby driving the rotating shaft to move around the positioning plate through the rotation of the positioning plate. At the same time, during the movement of the rotating shaft, the positioning seat, the first positioning block and the second positioning block can be pulled by the positioning rod to move relative to each other, so that the first positioning block and the second positioning block are respectively extended into the first positioning slot and the second positioning slot, and then the first positioning block cooperates with the first positioning slot and the second positioning block cooperates with the second positioning slot to achieve positioning between the mounting shell and the mounting seat, thereby achieving installation and fixation of the reaction beam;

[0051] 2. In the present invention, by setting up the driving mechanism, the operator can pull the handwheel to make the first limit block disengage from the first limit groove, and then turn the handwheel to drive the driving column and the positioning plate to rotate through the cooperation of the second limit groove and the second limit wheel. After the rotation is completed, the operator releases the handwheel, and the first limit block is pressed into the first limit groove under the action of the support spring, thereby limiting the rotation angle of the handwheel and the positioning plate through the cooperation of the first limit block and the first limit groove;

[0052] 3. In the present invention, the tension detection mechanism is provided, and the operation of the oil cylinder can drive the fixed plate, fixed column, and fixed block to move, thereby pressing the shear plate against the first force gauge via the connecting block. The tension accuracy of the force gauge can be tested by comparing the reading difference between the first force gauge and the force sensor.

[0053] 4. In the present invention, by providing a pressure detection mechanism, after the operator places the connecting plates on both sides of the connecting block and rotates the threaded rod so that the threaded rod passes through the threaded opening, the operation of the oil cylinder can drive the shear plate closer to the connecting plate, and the contact between the shear plate and the connecting plate can drive the connecting plate to move. During this process, the threaded rod can drive the reaction plate to press against the second force gauge, so that the pressure accuracy of the force sensor can be tested by comparing the difference in readings between the second force gauge and the force sensor.

[0054] 5. In the present invention, by configuring the testing machine body, support frame, fixed seat, fixed block, shear plate, fixed plate, oil cylinder, tension detection mechanism and pressure detection mechanism, the operation of disassembling the force sensor is avoided, and the force sensor can be directly tested, thereby solving the problem of low efficiency in the horizontal force verification of the dynamic compression and shear testing machine in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0056] Figure 1 This is a schematic diagram of the structure of the utility model;

[0057] Figure 2 This is a structural schematic diagram of another perspective of the utility model;

[0058] Figure 3 This is a schematic diagram of the structure of the pressure detection mechanism of the utility model;

[0059] Figure 4 For this utility model Figure 3 Schematic diagram of the locally enlarged structure at point A in the middle.

[0060] In the figure: 1. Testing machine body; 2. Support frame; 3. Fixed seat; 4. Fixed block; 5. Shear plate; 6. Fixed plate; 7. Force sensor; 8. Cylinder; 9. Fixed column; 10. Mounting seat; 11. Reaction beam; 12. Mounting shell; 13. First dynamometer; 14. First positioning block; 15. Second positioning block; 16. Positioning seat; 17. Positioning plate; 18. Positioning rod; 19. Driving column; 20. Handwheel; 21. First limit block; 22. Second limit groove; 23. Second limit block; 24. Support spring; 25. Reaction plate; 26. Second dynamometer; 27. Threaded rod; 28. Connecting plate. DETAILED DESCRIPTION

[0061] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] like Figure 1-Figure 4 As shown, this embodiment proposes a horizontal force calibration device for a dynamic compression and shear testing machine, including a testing machine body 1, a support frame 2, a fixed seat 3, a fixed block 4, a shearing plate 5, a fixed plate 6, an oil cylinder 8, a tension detection mechanism and a pressure detection mechanism. The support frame 2 is fixedly arranged on the testing machine body 1, and a fixed seat 3 is fixedly arranged on the support frame 2. A fixed through groove is provided on the fixed seat 3, and the fixed block 4 is slidably arranged in the fixed through groove. The shearing plate 5 is arranged on one side of the fixed block 4, and a connecting block is fixedly arranged between the shearing plate 5 and the fixed block 4. The fixed plate 6 is arranged on one side of the fixed seat 3, and a force sensor 7 is fixedly arranged on the fixed plate 6. The oil cylinder 8 is fixedly arranged between the fixed seat 3 and the fixed plate 6, and a fixed column 9 is provided between the fixed plate 6 and the fixed block 4. The fixed column 9 passes through the fixed seat 3 and is slidably connected to the fixed seat 3. The tension detection mechanism and the pressure detection mechanism are arranged on the testing machine body 1, for detecting the tension and pressure accuracy of the force sensor 7.

[0063] Reference Figure 1 and Figure 2 The tension detection mechanism includes a mounting seat 10, a reaction beam 11, a positioning mechanism and a first dynamometer 13. Two mounting seats 10 are fixedly provided on the testing machine body 1. The reaction beam 11 is provided on one side of the mounting seat 10. Mounting shells 12 are fixedly provided at both ends of the reaction beam 11. The positioning mechanism is provided between the mounting seat 10 and the mounting shell 12 for positioning the mounting seat 10 and the mounting shell 12. The first dynamometer 13 is fixedly provided on the side wall of the reaction beam 11 close to the shear plate 5.

[0064] Specifically, after the mounting shell 12 is fixed on the mounting base 10 through the positioning mechanism, the operator controls the operation of the oil cylinder 8, and the operation of the oil cylinder 8 can drive the fixed plate 6, the fixed column 9 and the fixed block 4 to move, and then the shear plate 5 is pressed on the first force gauge 13 through the connecting block, so that the tension accuracy of the force sensor 7 can be detected by comparing the difference in readings between the first force gauge 13 and the force sensor 7.

[0065] Reference Figure 1-Figure 4The positioning mechanism includes a first positioning slot, a positioning port, a first positioning block 14 and a relative movement mechanism. The first positioning slot is provided on the mounting seat 10. A second positioning slot is provided on the two side walls opposite to the first positioning slot. The positioning port is provided on the side wall of the mounting shell 12. The positioning port is aligned with the first positioning slot. Two first positioning blocks 14 are slidingly provided in the positioning port. A second positioning block 15 is fixedly provided on the two side walls opposite to the first positioning block 14. The second positioning block 15 corresponds to the second positioning slot one by one. The relative movement mechanism is provided in the mounting shell 12. In order to control the relative movement of the two first positioning blocks 14, the relative movement mechanism includes a positioning seat 16, a positioning disk 17, a positioning rod 18 and a driving mechanism. Two positioning seats 16 are slidingly arranged in the mounting shell 12. The positioning seats 16 are fixedly connected to the adjacent first positioning blocks 14. The positioning disk 17 is rotatably arranged on the inner wall of the mounting shell 12. Two rotating shafts are rotatably arranged at the eccentric position of the positioning disk 17. The positioning rod 18 is hingedly arranged between the rotating shaft and the adjacent positioning seat 16. The driving mechanism is arranged on the mounting shell 12 to control the rotation of the positioning disk 17.

[0066] Specifically, the driving mechanism can drive the positioning disk 17 to rotate, thereby driving the rotating shaft to move around the positioning disk 17 through the rotation of the positioning disk 17. At the same time, during the movement of the rotating shaft, the positioning seat 16, the first positioning block 14 and the second positioning block 15 can be pulled by the positioning rod 18 to move relative to each other, so that the first positioning block 14 and the second positioning block 15 are respectively extended into the first positioning slot and the second positioning slot, and then the positioning between the mounting shell 12 and the mounting seat 10 is achieved through the cooperation between the first positioning block 14 and the first positioning slot and the cooperation between the second positioning block 15 and the second positioning slot, thereby achieving the installation and fixation of the reaction beam 11.

[0067] Reference Figure 3 and Figure 4The driving mechanism includes a driving column 19, a hand wheel 20 and a limiting mechanism. The driving column 19 is fixedly arranged on the positioning plate 17. The driving column 19 extends out of the mounting housing 12 and is rotatably connected to the side wall of the mounting housing 12. The hand wheel 20 is rotatably arranged on one side of the mounting housing 12. The limiting mechanism is arranged between the driving column 19 and the hand wheel 20 and is used to limit the rotation angle of the hand wheel 20. The limiting mechanism includes a first limiting groove, a first limiting block 21, a second limiting groove 22 and a second limiting block 23. The first limiting groove is opened on the side wall of the mounting housing 12, and the first limiting block 21 is opened on the side wall of the mounting housing 12. The first limiting block 21 is slidingly arranged in the first limiting groove, the first limiting block 21 is fixedly connected to the handwheel 20, the second limiting groove 22 is opened on the handwheel 20, and a limiting opening is opened at the bottom of the second limiting groove 22, and the limiting opening passes through the first limiting block 21, wherein the driving column 19 passes through the limiting opening and extends into the second limiting groove 22, the second limiting block 23 is slidingly arranged in the second limiting groove 22, the second limiting block 23 is fixedly connected to the driving column 19, and the side wall of the driving column 19 is equipped with a support spring 24, and the two ends of the support spring 24 are respectively fixedly connected to the handwheel 20 and the bottom of the second limiting groove 22.

[0068] Specifically, the operator can pull the handwheel 20 to make the first limit block 21 disengage from the first limit groove, and then turn the handwheel 20 to drive the driving column 19 and the positioning disk 17 to rotate through the cooperation of the second limit groove 22 and the second limit wheel. After the rotation is completed, the operator releases the handwheel 20 and presses the first limit block 21 into the first limit groove under the action of the support spring 24, thereby limiting the rotation angle of the handwheel 20 and the positioning disk 17 through the cooperation of the first limit block 21 and the first limit groove.

[0069] Reference Figure 1-Figure 3 The pressure detection mechanism includes a reaction plate 25, a second dynamometer 26 and a connecting mechanism. The reaction plate 25 is arranged on one side of the reaction beam 11, and the second dynamometer 26 is fixedly arranged on the reaction plate 25. The connecting mechanism is arranged on the reaction plate 25 and is used to connect the reaction plate 25 and the shear plate 5. The connecting mechanism includes a connecting port, a threaded rod 27 and a connecting plate 28. Two connecting ports are respectively provided on both sides of the reaction beam 11. The two connecting ports on the same side of the reaction beam 11 are located on both sides of the shear plate 5. The threaded rod 27 is rotatably provided on the reaction plate 25. The threaded rod 27 passes through the connecting port. The connecting plate 28 is provided on both sides of the shear plate 5. Two threaded ports are provided on the connecting plate 28. The threaded rod 27 passes through the threaded port through threaded cooperation, and a bolt head is fixed on the threaded rod 27.

[0070] Specifically, after the operator places the connecting plate 28 on both sides of the connecting block and rotates the threaded rod 27 so that the threaded rod 27 passes through the threaded opening, the shear plate 5 can be driven close to the connecting plate 28 by the operation of the oil cylinder 8 and the connecting plate 28 can be driven to move by the contact between the shear plate 5 and the connecting plate 28. In this process, the reaction plate 25 can be driven by the threaded rod 27 to press on the second force gauge 26, so that the pressure accuracy of the force sensor 7 can be detected by comparing the difference in readings between the second force gauge 26 and the force sensor 7.

[0071] The first positioning block 14 and the second positioning block 15 are respectively extended into the first positioning slot and the second positioning slot, thereby realizing the positioning between the mounting shell 12 and the mounting seat 10, and realizing the installation and fixation of the reaction beam 11. After the rotation is completed, the operator releases the handwheel 20, and the support spring 16 can be used to pull the positioning seat 16, the first positioning block 14 and the second positioning block 15 relative to each other. Under the action of 24, the first limiting block 21 is pressed into the first limiting groove, so that the rotation angle of the hand wheel 20 and the positioning plate 17 is limited by the cooperation of the first limiting block 21 and the first limiting groove. Then the operator controls the oil cylinder 8 to work, and the operation of the oil cylinder 8 can drive the fixed plate 6, the fixed column 9 and the fixed block 4 to move, and then the shear plate 5 is pressed on the first dynamometer 13 through the connecting block, so that the tension accuracy of the force sensor 7 can be checked by comparing the reading difference between the first dynamometer 13 and the force sensor 7. Carry out detection, after which the operator places the connecting plate 28 on both sides of the connecting block and rotates the threaded rod 27 so that the threaded rod 27 passes through the threaded opening, the shear plate 5 can be driven close to the connecting plate 28 by the operation of the oil cylinder 8 and the connecting plate 28 can be driven to move by the contact between the shear plate 5 and the connecting plate 28. In this process, the reaction plate 25 can be driven by the threaded rod 27 to press on the second dynamometer 26, so that the pressure accuracy of the force sensor 7 can be detected by comparing the difference in readings between the second dynamometer 26 and the force sensor 7.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for testing the horizontal force of a dynamic compression and shear testing machine, characterized in that: include: Testing machine body (1); A support frame (2), the support frame (2) being fixedly arranged on the testing machine body (1); A fixing seat (3), the fixing seat (3) is fixedly provided on the support frame (2), and a fixing through slot is provided on the fixing seat (3); A fixed block (4), the fixed block (4) being slidably disposed in the fixed through slot; a shearing plate (5), the shearing plate (5) being arranged on one side of the fixing block (4), and a connecting block being fixedly arranged between the shearing plate (5) and the fixing block (4); A fixing plate (6), the fixing plate (6) being arranged on one side of the fixing seat (3), and a force sensor (7) being fixedly arranged on the fixing plate (6); An oil cylinder (8), wherein the oil cylinder (8) is fixedly arranged between the fixing seat (3) and the fixing plate (6), a fixing column (9) is arranged between the fixing plate (6) and the fixing block (4), and the fixing column (9) passes through the fixing seat (3) and is slidably connected to the fixing seat (3); A tension detection mechanism and a pressure detection mechanism are provided on the testing machine body (1) and are used to detect the tension and pressure accuracy of the force sensor (7).

2. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 1, characterized in that: The tension detection mechanism comprises: Mounting seats (10), two mounting seats (10) are fixedly provided on the testing machine body (1); A reaction beam (11), the reaction beam (11) being arranged on one side of the mounting seat (10), and a mounting shell (12) being fixedly arranged at both ends of the reaction beam (11); a positioning mechanism, the positioning mechanism being arranged between the mounting seat (10) and the mounting shell (12) and being used for positioning the mounting seat (10) and the mounting shell (12); A first dynamometer (13), wherein the first dynamometer (13) is fixedly arranged on a side wall of the reaction beam (11) close to the shear plate (5).

3. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 2, characterized in that: The positioning mechanism comprises: A first positioning slot, the first positioning slot being provided on the mounting seat (10), and second positioning slots being provided on two side walls opposite to the first positioning slot; A positioning opening, the positioning opening being provided on a side wall of the mounting housing (12), the positioning opening being aligned with the first positioning slot; A first positioning block (14), two of the first positioning blocks (14) are slidably arranged in the positioning opening, and second positioning blocks (15) are fixedly arranged on two opposite side walls of the first positioning block (14), and the second positioning blocks (15) correspond one to one with the second positioning slots; A relative movement mechanism is provided in the mounting housing (12) and is used to control the relative movement of the two first positioning blocks (14).

4. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 3, characterized in that: The relative movement mechanism comprises: Positioning seats (16), two positioning seats (16) are slidably provided in the mounting shell (12), and the positioning seats (16) are fixedly connected to the adjacent first positioning blocks (14); A positioning plate (17), the positioning plate (17) being rotatably mounted on the inner wall of the mounting housing (12), and two rotating shafts being rotatably mounted on an eccentric position of the positioning plate (17); A positioning rod (18), the positioning rod (18) being hingedly arranged between the rotating shaft and the adjacent positioning seat (16); A driving mechanism is provided on the mounting housing (12) and is used to control the rotation of the positioning disk (17).

5. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 4, characterized in that: The driving mechanism comprises: A driving column (19), wherein the driving column (19) is fixedly disposed on the positioning plate (17), and the driving column (19) extends out of the mounting housing (12) and is rotatably connected to a side wall of the mounting housing (12); A hand wheel (20), the hand wheel (20) being rotatably arranged on one side of the mounting housing (12); A limiting mechanism is provided between the driving column (19) and the hand wheel (20) and is used to limit the rotation angle of the hand wheel (20).

6. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 5, characterized in that: The limiting mechanism includes: a first limiting groove, the first limiting groove being provided on a side wall of the mounting housing (12); a first limiting block (21), wherein the first limiting block (21) is slidably disposed in the first limiting groove, and the first limiting block (21) is fixedly connected to the hand wheel (20); A second limiting groove (22), the second limiting groove (22) is provided on the hand wheel (20), a limiting opening is provided at the bottom of the second limiting groove (22), and the limiting opening passes through the first limiting block (21); Wherein, the driving column (19) passes through the limiting opening and extends into the second limiting groove (22); A second limiting block (23), wherein the second limiting block (23) is slidably disposed in the second limiting groove (22), and the second limiting block (23) is fixedly connected to the driving column (19).

7. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 6, characterized in that: A support spring (24) is sleeved on the side wall of the driving column (19), and two ends of the support spring (24) are fixedly connected to the hand wheel (20) and the bottom of the second limiting groove (22) respectively.

8. The device for testing the horizontal force of a dynamic compression shear testing machine according to claim 7, characterized in that: The pressure detection mechanism comprises: a reaction plate (25), the reaction plate (25) being arranged on one side of the reaction beam (11); a second dynamometer (26), the second dynamometer (26) being fixedly disposed on the reaction plate (25); A connecting mechanism is provided on the reaction plate (25) and is used to connect the reaction plate (25) and the shear plate (5).

9. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 8, characterized in that: The connecting mechanism comprises: Connecting ports, two connecting ports are respectively provided on both sides of the reaction beam (11), and the two connecting ports on the same side of the reaction beam (11) are located on both sides of the shear plate (5); a threaded rod (27), the threaded rod (27) being rotatably mounted on the reaction plate (25), and the threaded rod (27) passing through the connection port; A connecting plate (28) is provided on both sides of the shear plate (5), and two threaded openings are provided on the connecting plate (28), and the threaded rod (27) passes through the threaded openings through threaded engagement.

10. A device for testing the horizontal force of a dynamic compression and shear testing machine according to claim 9, characterized in that: A bolt head is fixedly provided on the threaded rod (27).

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