Device for testing shear strength of building steel beam structure

Abstract

The invention belongs to the technical field of building steel structure detection, and particularly relates to a building steel beam structure shear strength testing device which comprises a supporting device, a control panel is fixedly installed on one side of the supporting device, a discharging pipe is fixedly installed at the top of an inner cavity of the supporting device, and two sets of discs are rotationally connected to the two sides of the inner cavity of the supporting device. An L-shaped plate is rotationally connected to the position, located at the bottom of the discharging pipe, of an inner cavity of the supporting device, a feeding assembly is arranged on the discharging pipe and indirectly conveys the steel beams to the L-shaped plate through the discharging pipe, so that the steel beams are stably and orderly conveyed, after the steel beams are conveyed to the L-shaped plate, the feeding assembly automatically stops and waits for testing, and if the steel beams exist in the L-shaped plate and feeding is paused, the steel beams are conveyed to the L-shaped plate. Accumulation is prevented, and high-efficiency and stable testing is ensured. The steel beam can be automatically detected, the requirement for large-scale steel beam shearing strength testing is met, the labor intensity of workers is relieved, and the accuracy of the testing result is improved.

Description

Technical Field

[0001] This invention belongs to the field of building steel structure testing technology, specifically relating to a shear strength testing device for building steel beam structures. Background Technology

[0002] Steel beams are key load-bearing components in steel structures, primarily used to support floors, roofs, and walls, ensuring the overall stability and load-bearing safety of the building. Shear strength testing of steel beams is essential to accurately assess their resistance to shear failure, verify whether the design and construction quality meet safety standards, and prevent structural failure, deformation, or even collapse due to insufficient shear strength. This provides a reliable basis for project safety assessments, structural design optimization, and quality acceptance.

[0003] Currently, commercially available shear strength testing devices for building steel beams typically require manual loading and unloading by workers. Before conducting the shear test, workers often need to manually clamp and fix the steel beams, and then manually release the clamps after the test. The entire process is cumbersome, and if there are many steel beams to be tested, the workers' labor intensity is high, resulting in low testing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a shear strength testing device for building steel beam structures, which can carry out automated testing of steel beams, meet the needs of large-scale steel beam shear strength testing, reduce the labor intensity of workers, and improve the accuracy of test results.

[0005] The specific technical solution adopted by this invention is as follows: A shear strength testing device for a building steel beam structure includes a support device. A control panel is fixedly installed on one side of the support device. A feeding pipe is fixedly installed on the top of the inner cavity of the support device. Two sets of discs are rotatably connected to both sides of the inner cavity of the support device. An L-shaped plate is rotatably connected to the inner cavity of the support device and located at the bottom of the feeding pipe. The feeding pipe is equipped with a feeding component, which indirectly transfers the steel beam to the L-shaped plate through the feeding pipe, so that the steel beam is transferred stably and orderly. After the steel beam is transferred to the L-shaped plate, the feeding component automatically stops and waits for testing. If there is already a steel beam in the L-shaped plate, the feeding is paused to prevent accumulation and ensure efficient and stable testing. The disc is equipped with a shearing component, which is used to test the shear strength of the steel beam located on the L-shaped plate. The control panel will analyze and process the data in real time, and record the shear pressure borne by the steel beam at different stages until the steel beam is sheared. The L-shaped plate is equipped with a clamping assembly, which is used to firmly clamp the steel beam to prevent it from shifting or shaking during the shear strength test, thus ensuring the accuracy of the test results. After the test is completed, the clamping assembly will automatically release and rotate, allowing the steel beam to fall directly from the bottom of the inner cavity of the support device.

[0006] Preferably, the feeding assembly includes stops inserted into the top and bottom of the feed pipe. A strip groove is provided on one side of the support device to cooperate with the stops. The stops are slidably connected within the strip groove. A connecting rod is fixedly connected to the side of the two stops that are close to each other. A rotating block is fixedly connected to one side of the bottom stop. A first deflecting wheel is rotatably connected to the surface of the rotating block. A second deflecting wheel is meshed with one side of the first deflecting wheel. A strip rod is fixedly connected to one side of the first and second deflecting wheels. A first rotating wheel is rotatably connected to the side of the second deflecting wheel away from the first deflecting wheel. The side of the first rotating wheel away from the second deflecting wheel is fixedly connected to the support device. A second rotating wheel is fixedly connected to one side of the support device. A transmission belt is sleeved on the surface of the first rotating wheel. The end of the transmission belt away from the first rotating wheel is sleeved on the second rotating wheel. A first motor is fixedly installed on one side of the back of the support device, and the output end of the first motor is fixedly connected to the second rotating wheel.

[0007] Preferably, the connecting rod has a Z-shaped structure and the stop block has a T-shaped structure.

[0008] Preferably, the shearing assembly includes a round rod fixedly connected to one side of each set of discs. A fixed rod is fixedly connected to the side of the support device closest to the disc. An arc-shaped push rod is rotatably connected to the surface of the fixed rod. A semi-circular groove is formed on the arc-shaped push rod, and the round rod is slidably connected within the semi-circular groove. A swing rod is rotatably connected to the end of the arc-shaped push rod away from the fixed rod. A shearing blade is rotatably connected to the end of the swing rod away from the arc-shaped push rod. Sliding grooves are fixedly connected to both sides of the inner cavity of the support device. One side of the shearing blade is slidably connected within the sliding groove. The side of the support device away from the disc rotates... The device has two toothed discs connected to each other. One end of each toothed disc is fixedly connected to two discs. A first gear is fixedly connected to one side of one of the toothed discs. A second gear meshes with one side of the first gear. One side of the second gear is rotatably connected to a support device. Pulleys are fixedly connected to the side of the second gear and the toothed disc away from the support device. A belt is fitted on the surface of the two pulleys. A second motor is fixedly installed on one side of the back of the support device. The output end of the second motor is fixedly connected to one of the pulleys. A flipping assembly is provided on the L-shaped plate.

[0009] Preferably, the clamping assembly includes bidirectional threaded rods rotatably connected to the top and bottom of the L-shaped plate, with clamping blocks threaded to both ends of the surface of each bidirectional threaded rod, and wheel disks fixedly connected to the surfaces of both bidirectional threaded rods. Flat belts are sleeved on the surfaces of the two wheel disks, and a third motor is fixedly installed on the top of one side of the L-shaped plate. The output end of the third motor is fixedly connected to the bidirectional threaded rods.

[0010] Preferably, the flipping assembly includes a wheel body rotatably connected to the side of the support device away from the L-shaped plate, one side of the toothed disc is engaged with a toothed wheel, one side of the toothed wheel is rotatably connected to the support device, and the other side of the toothed wheel is fixedly connected to a belt reel, and an annular belt is fitted on the surface of the belt reel and the wheel body.

[0011] Preferably, the top of the support device has an inlet for use with the feeding pipe, and the bottom of the inner cavity of the support device has an outlet for use with the L-shaped plate.

[0012] Preferably, the arc-shaped push rod has an arc-shaped structure, and the semi-circular groove has a semi-circular structure.

[0013] The technical effects achieved by this invention are as follows: This invention discloses a shear strength testing device for building steel beam structures. The feeding assembly enables the orderly and indirect transfer of steel beams, preventing accumulation and eliminating the need for manual feeding. The clamping assembly automatically clamps the steel beams before and after testing, avoiding tedious manual clamping and unclamping operations. The shearing assembly applies a uniform and symmetrical shearing force to the steel beams, ensuring accurate and reliable test results. Finally, the flipping assembly automatically unloads the sheared steel beams after testing. This device enables automated testing of steel beams, meeting the needs of large-scale steel beam shear strength testing, reducing worker workload, and improving the accuracy of test results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a perspective view of the internal structure of the back of the support device of the present invention; Figure 3 This is an exploded view of the feeding assembly of the present invention; Figure 4 This is a three-dimensional structural view of the feeding assembly of the present invention; Figure 5 This is a three-dimensional structural view of the shearing component of the present invention; Figure 6 This is a three-dimensional structural view of the clamping assembly of the present invention; Figure 7 This is the present invention. Figure 6 A side sectional view of the structure shown; Figure 8 This is a top view of the overall structure of the present invention.

[0015] The attached diagram lists the components represented by each number as follows: 1. Support device; 2. Feed pipe; 3. Disc; 4. L-shaped plate; 5. Stop block; 6. Strip groove; 7. Connecting rod; 8. Rotating block; 9. First deflecting wheel; 10. Second deflecting wheel; 11. Strip rod; 12. First rotating wheel; 13. Second rotating wheel; 14. Transmission belt; 15. First motor; 16. Round rod; 17. Fixed rod; 18. Arc-shaped push rod; 19. Semi-circular groove; 20. Swinging rod; 21. Shearing blade; 22. Sliding groove; 23. Gearless disc; 24. First gear; 25. Second gear; 26. Pulley; 27. Belt; 28. Second motor; 29. ​​Bidirectional threaded rod; 30. Clamping block; 31. Wheel disc; 32. Flat belt; 33. Third motor; 34. Wheel body; 35. Toothed wheel; 36. Belt disc; 37. Annular belt; 38. Feed inlet; 39. Discharge outlet. Detailed Implementation

[0016] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to the accompanying drawings. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0017] like Figure 1 - Figure 8 As shown, a shear strength testing device for a building steel beam structure includes a support device 1, a control panel fixedly installed on one side of the support device 1, a feeding pipe 2 fixedly installed on the top of the inner cavity of the support device 1, two sets of discs 3 rotatably connected to both sides of the inner cavity of the support device 1, and an L-shaped plate 4 rotatably connected to the inner cavity of the support device 1 and located at the bottom of the feeding pipe 2. The feeding pipe 2 is equipped with a feeding component. The feeding component indirectly transmits the steel beam to the L-shaped plate 4 through the feeding pipe 2, so that the steel beam is transmitted stably and orderly. After the steel beam is transmitted to the L-shaped plate 4, the feeding component automatically stops and waits for testing. If there is already a steel beam in the L-shaped plate 4, the feeding is paused to prevent accumulation and ensure efficient and stable testing. The disc 3 is equipped with a shearing component, which is used to test the shear strength of the steel beam located on the L-shaped plate 4. The control panel will analyze and process the data in real time, record the shear pressure borne by the steel beam at different stages, until the steel beam is sheared. The L-shaped plate 4 is equipped with a clamping assembly, which is used to firmly clamp the steel beam to prevent it from shifting or shaking during the shear strength test, thus ensuring the accuracy of the test results. After the test is completed, the clamping assembly will automatically release and rotate, allowing the steel beam to fall directly from the bottom of the inner cavity of the support device 1.

[0018] Among them, building steel beams are important structural components used in building engineering. They are usually made of rolled steel and have high strength and load-bearing capacity. If the shear strength of the steel beam is insufficient, shear failure may occur during actual use, which will seriously affect the overall stability and safety of the building. Through shear strength testing, we can accurately understand the shear performance of steel beams under different working conditions, provide reliable data support for building design, ensure that the selection and use of steel beams meet the engineering requirements, and thus ensure the safe and reliable operation of the building.

[0019] The control panel is used to control the operation of the entire device and record shearing data, allowing operators to observe the stress on the steel beam at any time. Through the setting of the feeding component, shearing component, and clamping component, the applied shearing force can be ensured to be applied evenly and accurately to the steel beam, ensuring that the steel beam remains stable throughout the shear strength test, making the test results more realistic and reliable. After the test, the clamping component can quickly and accurately release and rotate, allowing the steel beam to fall smoothly from the bottom of the inner cavity of the support device 1. This allows the device to automate the steel beam transfer, testing, and unloading process, reducing the complexity and workload of manual operation and improving testing efficiency.

[0020] like Figure 3 and Figure 4 As shown, the feeding assembly includes stop blocks 5 inserted into the top and bottom of the feed pipe 2. A strip groove 6, which mates with the stop blocks 5, is provided on one side of the support device 1. The stop blocks 5 are slidably connected within the strip groove 6. A connecting rod 7 is fixedly connected to the side of the two stop blocks 5 that are close to each other. A rotating block 8 is fixedly connected to one side of the bottom stop block 5. A first deflecting wheel 9 is rotatably connected to the surface of the rotating block 8. A second deflecting wheel 10 is meshed with one side of the first deflecting wheel 9. A strip rod 11 is fixedly connected to one side of both the first and second deflecting wheels 9. The first wheel 12 is rotatably connected to the side of the second deflecting wheel 10 away from the first deflecting wheel 9. The side of the first wheel 12 away from the second deflecting wheel 10 is fixedly connected to the support device 1. The second wheel 13 is fixedly connected to one side of the support device 1. A transmission belt 14 is sleeved on the surface of the first wheel 12. The end of the transmission belt 14 away from the first wheel 12 is sleeved on the second wheel 13. A first motor 15 is fixedly installed on one side of the back of the support device 1. The output end of the first motor 15 is fixedly connected to the second wheel 13.

[0021] Specifically, according to the feed inlet 38 described below, the steel beam is placed into the discharge pipe 2 through the feed inlet 38. The top of the support device 1 can be connected to an automatic steel beam conveying device, which can realize automatic feeding of the steel beam and improve testing efficiency. After the steel beam is placed into the discharge pipe 2, the stop block 5 is used to block the discharge pipe 2, so the steel beam is left in the discharge pipe 2. Power is provided by the first motor 15, which drives the second rotating wheel 13 to rotate. The first rotating wheel 12 is connected to the second rotating wheel 13 through the transmission belt 14. Therefore, the first rotating wheel 12 will rotate accordingly with the rotation of the second rotating wheel 13, thereby driving... The second deflector wheel 10 rotates and meshes with the first deflector wheel 9. The first deflector wheel 9 will rotate. Since the surface of the rotating block 8 is rotatably connected to the first deflector wheel 9, and the rotating block 8 is fixed on the bottom stop 5, the bottom stop 5 will slide in the strip groove 6, and at the same time drive the top stop 5 to move together, so that the top and bottom stops 5 are adjusted in the horizontal direction, thereby sliding the top stop 5 to the top of the feed pipe 2 and the bottom stop 5 to the bottom of the feed pipe 2. Therefore, the steel beam in the feed pipe 2 slides into the L-shaped plate 4 to facilitate the indirect conveying of the steel beam.

[0022] like Figure 4 As shown, the connecting rod 7 has a Z-shaped structure, and the stop block 5 has a T-shaped structure.

[0023] The Z-shaped connecting rod 7 is designed to ensure that when the bottom stop 5 of the feed pipe 2 moves out, the top stop 5 can block the top of the feed pipe 2, ensuring that the steel beam slides smoothly from the feed pipe 2 into the L-shaped plate 4, realizing the indirect conveying of the steel beam. The T-shaped structure of the stop 5 allows the stop 5 to slide stably in the feed pipe 2 and the strip groove 6, increasing the structural stability.

[0024] like Figure 2 and Figure 5As shown, the shearing assembly includes a round rod 16 fixedly connected to one side of each set of discs 3. A fixed rod 17 is fixedly connected to the side of the support device 1 near the disc 3. An arc-shaped push rod 18 is rotatably connected to the surface of the fixed rod 17. A semi-circular groove 19 is formed on the arc-shaped push rod 18. The round rod 16 is slidably connected in the semi-circular groove 19. A swing rod 20 is rotatably connected to the end of the arc-shaped push rod 18 away from the fixed rod 17. A shearing blade 21 is rotatably connected to the end of the swing rod 20 away from the arc-shaped push rod 18. Sliding grooves 22 are fixedly connected to both sides of the inner cavity of the support device 1. One side of the shearing blade 21 is slidably connected in the sliding groove 22. Two toothed discs 23 are rotatably connected. One end of each toothed disc 23 is fixedly connected to two discs 3. A first gear 24 is fixedly connected to one side of one toothed disc 23. A second gear 25 meshes with one side of the first gear 24. One side of the second gear 25 is rotatably connected to the support device 1. Pulleys 26 are fixedly connected to the side of the second gear 25 and the toothed disc 23 away from the support device 1. Belts 27 are sleeved on the surface of the two pulleys 26. A second motor 28 is fixedly installed on one side of the back of the support device 1. The output end of the second motor 28 is fixedly connected to one of the pulleys 26. A flipping component is provided on the L-shaped plate 4.

[0025] Specifically, as described below, after the clamping block 30 clamps the steel beam, the second motor 28 driven by the control panel can drive the pulley 26 fixedly connected to it to rotate. Since the belt 27 is sleeved on the surface of the two pulleys 26, it will drive the other pulley 26 to rotate synchronously. The other pulley 26 drives the second gear 25 to rotate, and the second gear 25 meshes with the first gear 24 on one side, thus driving the two toothed discs 23 to rotate in opposite directions. The rotation of the toothed discs 23 drives the disc 3 to rotate. Therefore, the toothed discs 23 on both sides of the inner cavity of the support device 1 rotate in opposite directions. Since the round rod 16 is slidably connected in the semi-circular groove 19, the arc-shaped push rod 18 is rotatably connected to the fixed rod 17 and the swing rod 20 respectively. The swing rod 20 is rotatably connected to the shearing blade 21. One side of the shearing blade 21 is slidably connected in the slide groove 22. When the disc 3 rotates and drives the rod 16 to slide to one end of the semi-circular groove 19, it will drive the shearing blades 21 on both sides to move closer to the L-shaped plate 4 and perform a shearing test on the steel beam clamped on the L-shaped plate 4. Since the structure and movement of the shearing blades 21 on both sides are symmetrical, they can apply a uniform and symmetrical shearing force to the steel beam during the movement. During the shearing process, the groove 22 can ensure that the shearing blades 21 move stably closer to the L-shaped plate 4, preventing deviation during the shearing process from affecting the test results. The shearing blades 21 on both sides slowly approach the steel beam until they are in close contact with the steel beam. At this time, a huge shearing force begins to act on the steel beam. As the shearing force continues to increase, the steel beam will gradually deform and begin to show tiny cracks. As time goes by, the cracks will continue to expand until the steel beam is completely sheared, completing a shear strength test.

[0026] After a test is completed, the disc 3 continues to rotate, which in turn drives the shearing blades 21 on both sides away from the L-shaped plate 4. When the round rod 16 passes through the semi-circular groove 19 again, it will drive the shearing blades 21 away from the L-shaped plate 4 and stay for a period of time. At this time, the L-shaped plate 4 can be flipped as a whole by the flipping component mentioned below, so as to remove the cut steel beam.

[0027] like Figure 6 and Figure 7 As shown, the clamping assembly includes bidirectional threaded rods 29 rotatably connected to the top and bottom of the L-shaped plate 4. Each bidirectional threaded rod 29 has a clamping block 30 threaded to both ends of its surface. Both bidirectional threaded rods 29 have a wheel 31 fixedly connected to their surfaces. A flat belt 32 is fitted onto the surfaces of the two wheel 31. A third motor 33 is fixedly installed on the top of one side of the L-shaped plate 4. The output end of the third motor 33 is fixedly connected to the bidirectional threaded rod 29.

[0028] When the steel beam enters the L-shaped plate 4, the control panel automatically drives the first motor 15 to rotate, causing the bottom stop 5 to enter the feeding pipe 2, and the top stop 5 to move away from the top of the feeding pipe 2. As a result, the steel beam to be cut falls into the feeding pipe 2. The control panel drives the third motor 33 to rotate the bidirectional threaded rod 29, and the wheel 31 and the flat belt 32 make the top and bottom bidirectional threaded rods 29 rotate synchronously. Since the clamping blocks 30 are threaded to both ends of the surface of the bidirectional threaded rod 29, the rotation of the bidirectional threaded rod 29 will cause the clamping blocks 30 on both sides to move axially along the bidirectional threaded rod 29, thereby realizing the clamping operation of the steel beam.

[0029] like Figure 2 As shown, the flipping assembly includes a wheel body 34 rotatably connected to the support device 1 on the side away from the L-shaped plate 4. One side of a toothed disc 23 is meshed with a toothed wheel 35. One side of the toothed wheel 35 is rotatably connected to the support device 1. The other side of the toothed wheel 35 is fixedly connected to a belt disc 36. An annular belt 37 is fitted on the surface of the belt disc 36 and the wheel body 34.

[0030] Specifically, when the toothed disc 23 rotates, it indirectly drives the toothed wheel 35, which is meshed with it, to rotate. The rotation of the toothed wheel 35 then drives the belt disc 36 to rotate. Since the belt disc 36 and the wheel body 34 are fitted with an annular belt 37, the rotation of the belt disc 36 is transmitted to the wheel body 34 through the annular belt 37, causing the wheel body 34 to rotate as well. The wheel body 34 is connected to the L-shaped plate 4, and the rotation of the wheel body 34 will cause the L-shaped plate 4 to flip as a whole. Therefore, after the shear strength test of the steel beam is completed, during the time when the round rod 16 passes through the semi-circular groove 19 again to move the shearing blade 21 away from the L-shaped plate 4 and stays there, the continuous rotation of the toothed disc 23 can trigger the flipping component to work, causing the L-shaped plate 4 to flip and the cut steel beam to fall from the discharge port 39 at the bottom of the L-shaped plate 4 to the outside of the support device 1 for collection.

[0031] like Figure 1 As shown, the top of the support device 1 is provided with an inlet 38 that works in conjunction with the feed pipe 2, and the bottom of the inner cavity of the support device 1 is provided with an outlet 39 that works in conjunction with the L-shaped plate 4.

[0032] The feed inlet 38 is designed to facilitate the smooth fall of the cut steel beams into the support device 1. The discharge outlet 39 is designed to facilitate the fall of the cut steel beams onto the outside of the L-shaped plate 4 for collection. When the L-shaped plate 4 is flipped by the flipping component, the cut steel beams will slide out along the discharge outlet 39, reducing worker intervention.

[0033] like Figure 5 As shown, the arc-shaped push rod 18 has an arc-shaped structure, and the semi-circular groove 19 has a semi-circular structure.

[0034] Specifically, the arc-shaped structure of the arc-shaped push rod 18 and the semi-circular structure of the semi-circular groove 19 cooperate to complete the testing of the steel beam. The arc shape of the arc-shaped push rod 18 can guide the movement direction of the shearing blade 21, while the semi-circular structure of the semi-circular groove 19 can drive the circular rod 16 to move within the semi-circular groove 19 when the disc 3 rotates. The arc-shaped push rod 18 can keep the shearing blade 21 stationary so that the wheel 34 can drive the L-shaped plate 4 to rotate as a whole.

[0035] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A device for testing the shear strength of a building steel beam structure, characterized in that: Includes a support device (1), a control panel is fixedly installed on one side of the support device (1), a feed pipe (2) is fixedly installed on the top of the inner cavity of the support device (1), two sets of discs (3) are rotatably connected to both sides of the inner cavity of the support device (1), and an L-shaped plate (4) is rotatably connected to the inner cavity of the support device (1) and the bottom of the feed pipe (2). The feeding pipe (2) is equipped with a feeding component. The feeding component indirectly transmits the steel beam to the L-shaped plate (4) through the feeding pipe (2). After the steel beam is transmitted to the L-shaped plate (4), the feeding component automatically stops and waits for testing. If there is already a steel beam in the L-shaped plate (4), the feeding is suspended. The disc (3) is provided with a shearing component, which is used to test the shear strength of the steel beam located on the L-shaped plate (4). The control panel performs real-time analysis and processing of the data. The L-shaped plate (4) is provided with a clamping assembly, which is used to firmly clamp the steel beam. After the test is completed, the clamping assembly automatically releases and rotates, so that the steel beam falls directly from the bottom of the inner cavity of the support device (1).

2. The shear strength testing device for building steel beam structures according to claim 1, characterized in that: The feeding assembly includes stops (5) inserted into the top and bottom of the feed pipe (2). A strip groove (6) is provided on one side of the support device (1) to cooperate with the stops (5). The stops (5) are slidably connected in the strip groove (6). A connecting rod (7) is fixedly connected to the side of the two stops (5) that are close to each other. A rotating block (8) is fixedly connected to one side of the bottom stop (5). A first deflecting wheel (9) is rotatably connected to the surface of the rotating block (8). A second deflecting wheel (10) is meshed with one side of the first deflecting wheel (9). A strip rod (11) is fixedly connected to one side of the first deflecting wheel (9) and the second deflecting wheel (10). The second deflection wheel (10) is rotatably connected to the first deflection wheel (9) on the side away from the first deflection wheel (9). The first deflection wheel (12) is fixedly connected to the support device (1) on the side away from the second deflection wheel (10). The support device (1) is fixedly connected to the second deflection wheel (13) on one side. The surface of the first deflection wheel (12) is covered with a transmission belt (14). The end of the transmission belt (14) away from the first deflection wheel (12) is covered with the second deflection wheel (13). The support device (1) is fixedly installed on one side of the back of the first motor (15). The output end of the first motor (15) is fixedly connected to the second deflection wheel (13).

3. The shear strength testing device for building steel beam structures according to claim 2, characterized in that: The connecting rod (7) has a Z-shaped structure, and the stop block (5) has a T-shaped structure.

4. The shear strength testing device for building steel beam structures according to claim 3, characterized in that: The shearing assembly includes a round rod (16) fixedly connected to one side of each set of discs (3). A fixed rod (17) is fixedly connected to the side of the support device (1) near the disc (3). An arc-shaped push rod (18) is rotatably connected to the surface of the fixed rod (17). A semi-circular groove (19) is provided on the arc-shaped push rod (18). The round rod (16) is slidably connected in the semi-circular groove (19). A swing rod (20) is rotatably connected to the end of the arc-shaped push rod (18) away from the fixed rod (17). A shearing blade (21) is rotatably connected to the end of the swing rod (20) away from the arc-shaped push rod (18). Sliding grooves (22) are fixedly connected to both sides of the inner cavity of the support device (1). One side of the shearing blade (21) is slidably connected in the sliding groove (22). The support device (1) is away from the disc (3). Two toothed discs (23) are rotatably connected to one side of the L-shaped plate (4). One end of each toothed disc (23) is fixedly connected to two discs (3). A first gear (24) is fixedly connected to one side of one of the toothed discs (23). A second gear (25) meshes with one side of the first gear (24). One side of the second gear (25) is rotatably connected to the support device (1). A pulley (26) is fixedly connected to the side of the second gear (25) and the toothed disc (23) away from the support device (1). A belt (27) is sleeved on the surface of the two pulleys (26). A second motor (28) is fixedly installed on one side of the back of the support device (1). The output end of the second motor (28) is fixedly connected to one of the pulleys (26). A flipping component is provided on the L-shaped plate (4).

5. The shear strength testing device for building steel beam structures according to claim 1, characterized in that: The clamping assembly includes a bidirectional threaded rod (29) rotatably connected to the top and bottom of the L-shaped plate (4). Each bidirectional threaded rod (29) has a clamping block (30) threaded to both ends of its surface. Both bidirectional threaded rods (29) have a wheel (31) fixedly connected to their surfaces. The surfaces of the two wheel (31) are fitted with a flat belt (32). A third motor (33) is fixedly installed on the top of one side of the L-shaped plate (4). The output end of the third motor (33) is fixedly connected to the bidirectional threaded rod (29).

6. The shear strength testing device for a building steel beam structure according to claim 4, characterized in that: The flipping assembly includes a wheel body (34) rotatably connected to the support device (1) on the side away from the L-shaped plate (4), one of the toothed discs (23) is meshed with a toothed wheel (35), one side of the toothed wheel (35) is rotatably connected to the support device (1), and the other side of the toothed wheel (35) is fixedly connected to a belt disc (36), and the surfaces of the belt disc (36) and the wheel body (34) are fitted with an annular belt (37).

7. The shear strength testing device for building steel beam structures according to claim 1, characterized in that: The top of the support device (1) is provided with an inlet (38) for use with the feed pipe (2), and the bottom of the inner cavity of the support device (1) is provided with an outlet (39) for use with the L-shaped plate (4).

8. The shear strength testing device for a building steel beam structure according to claim 4, characterized in that: The arc-shaped push rod (18) has an arc-shaped structure, and the semi-circular groove (19) has a semi-circular structure.

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