Bridge engineering rubber support testing machine and detection method thereof

Abstract

The invention provides a bridge engineering rubber support testing machine and a detection method thereof, and relates to the technical field of engineering detection. The bridge engineering rubber support testing machine comprises a testing machine body and a rubber support body, the testing machine body comprises a pressurizing head and a testing table, the pressurizing head is located above the testing table, the rubber support body is located on the testing table, and the rubber support body comprises a basin type base, a rubber block and a top cover. The rubber block is located in the basin-type base, the top cover is installed at the top of the rubber block, the measuring rulers are installed on the two sides of the testing table respectively, the measuring rulers are clamped on the side walls of the two sides of the testing table, and side face supporting pieces are installed on the measuring rulers. According to the invention, by arranging the side supporting piece capable of adjusting the position of the rubber support, the rubber support is adjusted to an inclined state before the pressurizing head detects the rubber support, so that the inclined pressure resistance of the rubber support can be conveniently tested.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering detection, and in particular relates to a rubber bearing testing machine for bridge engineering. Background Art

[0002] Rubber bearings in bridge engineering are an important structural component, mainly used to connect the upper and lower structures of bridges, and play the role of transferring loads, adapting to deformation, and shock absorption and isolation. Not only can the elastic deformation of rubber compensate for the horizontal displacement and rotation of bridges caused by temperature changes, concrete shrinkage creep, vehicle braking, etc., but also the damping performance of rubber can absorb energy during earthquakes or vibrations to reduce damage to the bridge structure. Therefore, the quality of rubber bearings will directly affect the quality of the bridge.

[0003] In order to ensure the quality of rubber bearings, they need to be quality inspected before leaving the factory. In addition to rubber blocks that are directly used, many rubber bearings are composite structures that contain rubber blocks. Many testing machines only test the rubber blocks inside the rubber bearings, but the rubber bearings installed at the bottom of the bridge are a whole. Only the internal rubber blocks are tested, which is quite different from the actual application scenario. At present, most testing machines usually do not test together with the external bearings, and during the testing process, they usually only test the axial direction of the rubber blocks. In actual use, the rubber bearings will also be subjected to oblique forces. Currently common testing machines often involve less in this aspect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a bridge engineering rubber bearing testing machine.

[0005] The technical solution adopted to solve the above technical problems is: A bridge engineering rubber bearing testing machine, comprising a testing machine body and a rubber bearing body, the testing machine body comprising a pressure head and a test bench, the pressure head being located above the test bench, the rubber bearing body being located on the test bench, the rubber bearing body comprising a basin-type base, a rubber block and a top cover, the rubber block being located inside the basin-type base, the top cover being arranged on the top of the rubber block, measuring rulers being arranged on both sides of the test bench, the measuring rulers being clamped on the side walls on both sides of the test bench, and side support members being arranged on the measuring rulers; The side support member includes a bottom plate, a bottom top plate, a top plate, a fixed plate, a top top plate and a servo motor, wherein the bottom plate is fixedly connected to the side wall of the bottom top plate, the bottom plate abuts against the side wall of the basin-type base, the fixed plate is movably inserted into the top plate, the end of the top plate away from the fixed plate is fixedly connected to the side wall of the top top plate, the top top plate abuts against the side wall of the top cover, the servo motor is installed between the fixed plate and the bottom plate, and the servo motor drives the top top plate to move; The side wall of the fixed plate and the side wall of the bottom plate are both provided with threaded holes, and a fixed threaded rod is threadedly connected to the two threaded holes. A turning handle is installed on the top of the fixed threaded rod. Two fixing holes are provided on the top of the test bench, and the two fixed threaded rods are respectively inserted into the two fixing holes.

[0006] Through the above technical solution, a side support member that can adjust the position of the rubber bearing is provided, and before the pressure head detects the rubber bearing, the rubber bearing is adjusted to an inclined state, thereby facilitating the testing of the oblique compressive resistance of the rubber bearing.

[0007] Furthermore, the measuring ruler includes an internal ruler and an external ruler, the external ruler is provided with a moving groove at one end facing the internal ruler, the internal ruler is slidably connected to the inside of the moving groove, the side walls of the internal ruler and the external ruler facing away from each other are respectively fixed with clamps, the two clamps are respectively against the side walls of both sides of the test bench, and scale lines are provided on the top of the internal ruler and the external ruler, and the scale line is zero on the side close to the clamp.

[0008] Through the above technical solution, the internal clamp and the external clamp that can slide relative to each other can be conveniently installed or removed from the test bench by sliding. At the same time, in the clamped state, by aligning with the designated positions of the two left and right scale lines respectively, it can be ensured that the rubber bearing body is placed in the middle position of the test bench, thereby facilitating the pressure head to test the rubber bearing body.

[0009] Furthermore, a plurality of fixed vertical bars are installed on the top of one end of the internal ruler near the external ruler, two limit rods are fixedly installed on the top of one end of the external ruler near the internal ruler, a limit block matching the limit rod is installed at the bottom of the bottom plate, and the limit hole is slidably connected to the limit rod.

[0010] Through the above technical solution, the limit rod is T-shaped, and the matching limit block is also provided with a T-shaped hole on the top, so that the limit block can move along the limit rod, thereby facilitating the adjustment of the position of the bottom plate, thereby facilitating the removal of the entire side support from the test bench.

[0011] Furthermore, a moving threaded rod is fixedly provided at the output end of the servo motor, a push plate is provided on a movable sleeve outside the moving threaded rod, the top of the push plate is fixedly connected to the bottom of the top plate, a short rod is fixedly connected to the bottom of the push plate, a short groove is provided on the top of the bottom plate, the short rod is slidably connected in the short groove, a clamping groove is provided on the side wall of the push plate, two extension rods are fixedly provided in the clamping groove, a clamping plate is movable sleeved on the two extension rods, the shape of the clamping plate is consistent with the shape of the clamping groove, the clamping plate and the clamping groove are magnetically connected, and the clamping plate is threadedly connected to the moving threaded rod.

[0012] Through the above technical solution, the operation of the servo motor will cause the moving threaded rod to rotate, and then the clamping plate will first move along the moving threaded rod, and then be clamped into the clamping slot, and drive the push plate and the top plate to move along the moving threaded rod, and then push the top cover of the rubber support body, so that the rubber support body is in an inclined stress state.

[0013] Furthermore, the side wall of the bottom plate is provided with a through hole, a stop block is installed in the through hole, a plurality of clips are fixedly provided at the bottom of the stop block, the clips respectively abut against the side walls of a plurality of fixed vertical bars, and the clips and the fixed vertical bars are both made of rubber.

[0014] Through the above technical solution, pressing the block downward will cause the clamping strip and the fixed vertical strip to squeeze each other, and because the two are densely distributed, the side walls of the clamping strip and the side walls of the fixed vertical strip will rub against each other. Through the friction between the two, the internal clamp, the external clamp and the side support will be in a relatively fixed state.

[0015] Furthermore, side holes are respectively opened on both sides of the through hole, side blocks are also respectively opened on both sides of the support block, fixing rods are fixedly arranged on the side walls of the side holes, and placement grooves are opened on the side walls of the side holes, and the placement grooves include a vertical section, an inclined section, a placement section and a connecting section, the inclined section is connected to the vertical section, the placement section is connected to the inclined section, the connecting section is connected to the placement section, the connecting section and the vertical section are located on the same straight line, a heart-shaped block is fixedly arranged in the placement section, and the fixing rod slides in the vertical section.

[0016] Through the above technical solution, when the stop block moves downward along the through hole, the fixing rod will move along the vertical section and the inclined section, and finally stop at the recessed position of the placement section and the heart-shaped block. At this time, under the action of the fixing rod, the stop block will be fixed in the through hole, so that the clamping strip can maintain a close contact with the fixed vertical strip, so that the side support, the internal clamp and the external clamp can be in a relatively fixed state.

[0017] Furthermore, a rack segment is fixedly provided on the side wall of the stop block facing the bottom top plate, a groove is opened on the perforated side wall, a gear part is rotatably connected in the groove, the gear part is meshed with the rack segment, a connecting rod is fixedly provided on the side wall of the gear part, a torsion spring is arranged on the outer sleeve of the connecting rod, a positioning plate is fixedly provided on the side wall of the connecting rod, a flat plate is pressed against the side wall of the positioning plate, a fixed round rod is fixedly provided on the end of the connecting rod away from the gear part, the fixed round rod is arranged in a short groove, and the top of the fixed round rod is consistent with the shape of the short groove.

[0018] Through the above technical solution, the plane plate can have a push-up effect on the positioning plate, and the force applied by the torsion spring to the connecting rod will keep the positioning plate in contact with the plane plate. In the initial state, the plane end of the fixed round rod will be in a state of not contacting the short slot, that is, at this time the fixed round rod will prevent the short rod from moving toward the direction of the servo motor.

[0019] Furthermore, a telescopic rod is fixedly provided at one end of the moving threaded rod away from the servo motor, a semicircular block is fixedly provided at the bottom of the top top plate, a cavity is opened in the top top plate, a semicircular block is rotatably connected in the cavity, the telescopic rod passes through the cavity and is fixedly connected to the side wall of the semicircular block, and a clamping cavity is opened at the top of the bottom top plate, and the shape of the clamping cavity is consistent with the shape of the semicircular block.

[0020] Through the above technical solution, when the servo motor drives the moving threaded rod to rotate, the telescopic rod will also synchronously drive the semicircular block to rotate. When the card plate is inserted into the card slot, the semicircular block is completely separated from the card cavity, and then the top top plate will be pushed forward together with the top plate. At this time, the semicircular block will also rotate with the telescopic rod, but the top top plate has been separated from the bottom top plate, so the rotating semicircular block will not have any other impact.

[0021] Furthermore, the bottom of the bottom top plate abuts against the top of the test bench, and the sum of the heights of the top top plate and the bottom top plate is less than the height of the top cover.

[0022] Through the above technical solution, the top top plate and the bottom top plate will be stacked up and down in the initial state, and the height of the two is less than the height of the top cover. Even if the pressure head squeezes the rubber support body and the rubber support body is compressed, it will not squeeze the top top plate.

[0023] A detection method for a bridge engineering rubber bearing testing machine comprises the following specific steps: S1. Pull the inner clamp and the outer clamp apart so that the two clamps respectively bear against the side walls of the test bench, and then place the rubber bearing body on the test bench. After the same scale is calculated on both sides, place the rubber bearing body in the middle of the test bench. S2, then turning the handle so that the fixed threaded rod can be rotated in the fixing plate and the bottom plate, and then inserted into the fixing hole, at which time the top plate abuts against the side wall of the top cover, and the bottom plate abuts against the side wall of the basin-type base; S3, then press the block along the perforation so that the card strip at the bottom of the block and the fixed vertical strip are pressed against each other. During the pressing process, the fixed rod on the side wall of the side hole will move along the vertical section and the inclined section in sequence, and finally stop at the placement section. At this time, release the block, and the block will be restricted in the current position by the fixed rod and the placement section, thereby fixing the relative position of the inner clamp and the outer clamp; S4. During the downward pressing process of the block, the rack section of the side wall of the block will enter the groove and mesh with the gear part, so that the gear part drives the connecting rod to rotate. The rotation of the connecting rod will compress the torsion spring. At the same time, the connecting rod will also drive the fixed round rod to rotate. After the rotation, the fixed round rod will present a state with the flat end facing upward, thereby facilitating the movement of the short rod; S5. Start the pressure head and perform a pressure test on the rubber bearing body from above. Record the data for multiple tests to test the compressive performance of the rubber bearing body in the axial direction. S6, then start the servo motor, the operation of the servo motor will drive the moving threaded rod to rotate, the clamping plate set on the moving threaded rod will move along the extension rod, at this time, the push plate will not move because it is not in contact with the moving threaded rod; S7. The rotation of the moving threaded rod will also drive the telescopic rod to rotate, and the semicircular block fixedly connected to the telescopic rod will rotate out of the card cavity. When the card plate moves into the card slot, the semicircular block will just completely rotate out of the card cavity; S8, after the card plate moves into the card slot, due to the magnetic connection between the card plate and the card slot, the card plate will drive the push plate to move along the short slot, and the top plate fixedly connected to the top of the push plate will drive the top plate to push the top cover to an offset position relative to the basin-type base; S9. Then start the pressure head again to perform a pressure test on the rubber bearing body in an inclined state from directly above, and record the data after multiple tests to test the compressive performance of the rubber bearing body when facing the pressure in the inclined direction.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention provides a side support member capable of adjusting the position of the rubber bearing, so that before the pressure head detects the rubber bearing, the rubber bearing can be adjusted to an inclined stress state in advance. At this time, although the force direction of the pressure head dropped from above does not change, since the rubber bearing body is in an inclined stress state, the pressure head can facilitate the test of the oblique pressure resistance of the rubber bearing; (2) The present invention provides an internal clamp and an external clamp that can slide relative to each other. The two can be conveniently installed on or removed from the test bench by sliding. At the same time, in the clamped state, by aligning the designated positions of the left and right scale lines respectively, the rubber bearing body can be placed in the middle of the test bench, thereby facilitating the pressure head to perform a pressure test on the rubber bearing body from directly above. (3) The present invention provides a stopper and a matching through-hole. When the stopper moves downward along the through-hole, the fixing rod moves along the vertical section and the inclined section and finally stops at the recessed position between the placement section and the heart-shaped block. At this time, under the action of the fixing rod, the stopper is fixed in the through-hole, so that the clamping bar can maintain a close contact with the fixed vertical bar, thereby making the side support, the internal clamp and the external clamp in a relatively fixed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structural connection between the rubber support body, the measuring ruler and the side support members on the top of the test bench in the present invention; Figure 3 yes Figure 2 A partial enlarged view of the middle A; Figure 4 It is a schematic diagram of the structural connection of the measuring ruler in the present invention; Figure 5 It is a schematic diagram of the structure of two side support members in the present invention; Figure 6 It is a structural schematic diagram of the abutment block in the present invention; Figure 7 It is a schematic diagram of the structure of the internal perforation of the side support member in the present invention; Figure 8 yes Figure 7 A partial enlarged view of point B in the middle; Fig. 9 It is a schematic diagram of the structural connection inside the bottom plate of the present invention; Fig.10 yes Fig. 9 A partial enlarged view of point C in the middle; Fig.11 It is a schematic diagram of the structural connection between the top roof plate and the bottom roof plate in the present invention.

[0026] Figure numerals: 1, pressure head; 2, test bench; 3, basin base; 4, rubber block; 5, top cover; 6, bottom plate; 7, bottom top plate; 8, top plate; 9, fixed plate; 10, top top plate; 11, servo motor; 12, fixed threaded rod; 13, turning handle; 14, fixing hole; 15, internal clamping ruler; 16, external clamping ruler; 17, moving groove; 18, clamping plate; 19, scale line; 20, fixed vertical bar; 21, limit rod; 22, limit block; 23, moving threaded rod; 24, push plate; 25, short Rod; 26, short slot; 27, card slot; 28, extension rod; 29, card plate; 30, perforation; 31, block; 32, card strip; 33, side hole; 34, side block; 35, fixed rod; 36, vertical section; 37, inclined section; 38, placement section; 40, connecting section; 41, heart-shaped block; 42, rack section; 43, groove; 44, gear section; 45, connecting rod; 46, torsion spring; 47, positioning plate; 48, plane plate; 49, fixed round rod; 50, telescopic rod; 51, semicircular block; 52, card cavity. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1 - Figure 2 As shown, a bridge engineering rubber bearing testing machine in this embodiment includes a testing machine body and a rubber bearing body. The testing machine body includes a pressure head 1 and a test bench 2. The pressure head 1 is located above the test bench 2, and the rubber bearing body is located on the test bench 2. The rubber bearing body includes a basin base 3, a rubber block 4 and a top cover 5. The rubber block 4 is located inside the basin base 3, and the top cover 5 is installed on the top of the rubber block 4. Measuring rulers are respectively installed on both sides of the test bench 2. The measuring rulers are clamped on the side walls of the test bench 2. Side supports are installed on the measuring rulers. The two side supports will clamp the rubber bearing body from both sides, which can not only fix the rubber bearing body, but also push the rubber bearing body to an inclined stress state.

[0029] Reference Figure 4The measuring ruler includes an internal clamp 15 and an external clamp 16. The external clamp 16 is provided with a movement groove 17 at one end facing the internal clamp 15. The internal clamp 15 is slidably connected to the movement groove 17. The side walls of the internal clamp 15 and the external clamp 16 facing away from each other are respectively fixed with clamps 18. The two clamps 18 are respectively against the side walls of the test bench 2 on both sides. The tops of the internal clamp 15 and the external clamp 16 are both provided with scale lines 19. The scale lines 19 are zero on the side close to the clamps 18. The internal clamp 15 and the external clamp 16 that can slide relatively can be conveniently installed or removed from the test bench 2 by sliding. At the same time, in the clamped state, by aligning the specified positions of the left and right scale lines 19 respectively, it can be ensured that the rubber bearing body is placed in the middle position of the test bench 2, thereby facilitating the pressure head 1 to experiment on the rubber bearing body.

[0030] Reference Figure 4 and Figure 5 A plurality of fixed vertical bars 20 are installed at the top of one end of the internal clamp 15 near the external clamp 16, and two limit rods 21 are fixedly installed at the top of one end of the external clamp 16 near the internal clamp 15. A limit block 22 matching the limit rod 21 is installed at the bottom of the bottom plate 6, and the limit hole is slidably connected with the limit rod 21. The limit rod 21 is T-shaped, and the top of the limit block 22 matched therewith is also provided with a T-shaped hole, so that the limit block 22 can move along the limit rod 21, thereby facilitating the adjustment of the position of the bottom plate 6, thereby facilitating the removal of the entire side support from the test bench 2.

[0031] Combination Figure 2 and Figure 3 The side support members include a bottom plate 6, a bottom top plate 7, a top plate 8, a fixed plate 9, a top top plate 10 and a servo motor 11. The bottom plate 6 is fixedly connected to the side wall of the bottom top plate 7, the bottom plate 6 is abutted against the side wall of the basin base 3, the fixed plate 9 is movably inserted into the top plate 8, and the top plate 8 is fixedly connected to the side wall of the top top plate 10 at one end away from the fixed plate 9, and the top top plate 10 is abutted against the side wall of the top cover 5. The servo motor 11 is installed between the fixed plate 9 and the bottom plate 6. The servo motor 11 drives the top top plate 10 to move, and the bottom of the bottom top plate 7 is abutted against the top of the test bench 2. The sum of the heights of the top top plate 10 and the bottom top plate 7 is less than the height of the top cover 5. The top top plate 10 and the bottom top plate 7 will be stacked up and down in the initial state, and their heights are less than the height of the top cover 5. Even if the pressure head 1 squeezes the rubber bearing body and the rubber bearing body is compressed, it will not squeeze the top top plate 10.

[0032] Also refer to Figure 2 and Figure 3A moving threaded rod 23 is fixedly provided at the output end of the servo motor 11, and a push plate 24 is movably sleeved outside the moving threaded rod 23. The top of the push plate 24 is fixedly connected to the bottom of the top plate 8, and a short rod 25 is fixedly connected to the bottom of the push plate 24. A short groove 26 is provided at the top of the bottom plate 6, and the short rod 25 is slidably connected in the short groove 26. A card slot 27 is provided on the side wall of the push plate 24, and two extension rods 28 are fixedly provided in the card slot 27. A card plate 29 is movably sleeved on the two extension rods 28. The shape of the card plate 29 is consistent with the shape of the card slot 27. The card plate 29 and the card slot 27 are magnetically connected. The card plate 29 is threadedly connected to the moving threaded rod 23. The operation of the servo motor 11 will cause the moving threaded rod 23 to rotate, and then the card plate 29 first moves along the moving threaded rod 23, and then snaps into the card slot 27, and drives the push plate 24 and the top plate 8 to move along the moving threaded rod 23, thereby pushing the top cover 5 of the rubber bearing body, so that the rubber bearing body is in an inclined force state.

[0033] from Figure 5 It can be seen that the side support members on both sides of the rubber support body are not exactly the same, because the two side support members play different roles. One side support member will push the top cover 5, while the other side support member will make way for the top cover 5 to move. Therefore, although the push plate 24 moves in different directions, the position of the clamping plate 29 relative to the push plate 24 does not change. Figure 5 In the side support of the upper part, the push plate 24 will move to the left, and the top plate 10 will push the top cover 5 to move to the left. Figure 5 In the side support member of the lower part, although the push plate 24 will also move to the left, the top plate 10 will make way for the top cover 5, thereby making it easier for the top plate 10 on the other side to push the top cover 5.

[0034] Reference Figure 3 and Fig.11 , a telescopic rod 50 is fixedly provided at one end of the moving threaded rod 23 away from the servo motor 11, and a semicircular block 51 is fixedly provided at the bottom of the top top plate 10. A cavity is provided in the top top plate 10, and a semicircular block 51 is rotatably connected in the cavity. The telescopic rod 50 passes through the cavity and is fixedly connected to the side wall of the semicircular block 51. A clamping cavity 52 is provided at the top of the bottom top plate 7. The shape of the clamping cavity 52 is consistent with the shape of the semicircular block 51. When the servo motor 11 drives the moving threaded rod 23 to rotate, the telescopic rod 50 will also synchronously drive the semicircular block 51 to rotate. When the clamping plate 29 is clamped into the clamping groove 27, the semicircular block 51 is just completely separated from the clamping cavity 52, and then the top top plate 10 will be pushed forward by the pushing plate 24 together with the top plate 8. At this time, the semicircular block 51 will also rotate with the telescopic rod 50, but the top top plate 10 has been separated from the bottom top plate 7, so the rotating semicircular block 51 will not have other effects.

[0035] Combination Figure 4 and Figure 6 As shown, a through hole 30 is opened on the side wall of the bottom plate 6, and a stopper 31 is installed in the through hole 30. A plurality of clamping strips 32 are fixedly arranged at the bottom of the stopper 31. The plurality of clamping strips 32 respectively abut against the side walls of the plurality of fixed vertical bars 20. The clamping strips 32 and the fixed vertical bars 20 are both made of rubber. Pressing the stopper 31 downward will cause the clamping strips 32 and the fixed vertical bars 20 to be squeezed against each other. Since the two are densely distributed, the side walls of the clamping strips 32 and the side walls of the fixed vertical bars 20 will rub against each other. Through the friction between the two, the internal clamp 15, the external clamp 16 and the side support are in a relatively fixed state.

[0036] Reference Figure 6 - Figure 8 , side holes 33 are respectively opened on both sides of the through hole 30, side blocks 34 are also respectively opened on both sides of the stop block 31, a fixing rod 35 is fixedly set on the side wall of the side hole 33, and a placement groove is opened on the side wall of the side hole 33, and the placement groove includes a vertical section 36, an inclined section 37, a placement section 38 and a connecting section 40, the inclined section 37 is connected to the vertical section 36, the placement section 38 is connected to the inclined section 37, the connecting section 40 is connected to the placement section 38, and the connecting section 40 and the vertical section 36 are located on the same straight line, from Figure 6 It can be seen that the connecting section 40 is inclined, and the end of the connecting section 40 facing the vertical section 36 is higher. Therefore, when the fixing rod 35 moves along the vertical section 36, it can only enter the inclined section 37, and will not enter the connecting section 40 in the opposite direction. A heart-shaped block 41 is fixedly arranged in the placement section 38, and the fixing rod 35 slides in the vertical section 36. When the stop block 31 moves downward along the through hole 30, the fixing rod 35 will move along the vertical section 36 and the inclined section 37, and finally stop at the recessed position of the placement section 38 and the heart-shaped block 41. At this time, under the action of the fixing rod 35, the stop block 31 will be fixed in the through hole 30, so that the clamping strip 32 can maintain a close contact with the fixed vertical strip 20, so that the side support, the internal clamp 15 and the external clamp 16 can be in a relatively fixed state.

[0037] Reference Fig. 9 - Fig.10A rack segment 42 is fixedly provided on the side wall of the stop block 31 facing the bottom top plate 7, and a groove 43 is opened on the side wall of the perforation 30. A gear portion 44 is rotatably connected in the groove 43, and the gear portion 44 meshes with the rack segment 42. A connecting rod 45 is fixedly provided on the side wall of the gear portion 44, and a torsion spring 46 is arranged on the outer sleeve of the connecting rod 45. A positioning plate 47 is fixedly provided on the side wall of the connecting rod 45, and a flat plate 48 is pressed against the side wall of the positioning plate 47. The force applied by the torsion spring 46 to the connecting rod 45 will keep the positioning plate 47 in contact with the flat plate 48. A fixed round rod 49 is fixedly provided on the end of the connecting rod 45 away from the gear portion 44. The fixed round rod 49 is arranged in the short groove 26, and the top of the fixed round rod 49 has the same shape as the short groove 26. In the initial state, the flat end of the fixed round rod 49 will be in a state of not contacting the short groove 26, that is, at this time, the fixed round rod 49 will prevent the short rod 25 from moving toward the servo motor 11.

[0038] Combination Figure 4 and Figure 5 , threaded holes are provided on the side walls of the fixing plate 9 and the side walls of the bottom plate 6, and a fixing threaded rod 12 is threadedly connected to the two threaded holes. A turning handle 13 is installed on the top of the fixing threaded rod 12. Two fixing holes 14 are provided on the top of the test bench 2, and the two fixing threaded rods 12 are respectively inserted into the two fixing holes 14. When the fixing threaded rods 12 are inserted into the fixing holes 14, the side support member can be fixed in the current position, thereby achieving the effect of clamping the rubber bearing body.

[0039] The detection method of the bridge engineering rubber bearing test machine includes the following specific steps: S1. Pull apart the inner clamp 15 and the outer clamp 16 so that the two clamps 18 respectively bear against the side walls of the test bench 2, and then place the rubber bearing body on the test bench 2. After the same scale is calculated on both sides, place the rubber bearing body in the middle of the test bench 2. S2, then turn the handle 13 so that the fixed threaded rod 12 can rotate in the fixing plate 9 and the bottom plate 6, and then be inserted into the fixing hole 14, at which time the top plate 10 abuts against the side wall of the top cover 5, and the bottom plate 7 abuts against the side wall of the basin base 3; S3, the stopper 31 is pressed down along the through hole 30, so that the clamping strip 32 at the bottom of the stopper 31 and the fixed vertical strip 20 are pressed against each other. During the pressing process, the fixing rod 35 on the side wall of the side hole 33 moves along the vertical section 36 and the inclined section 37 in sequence, and finally stops at the placement section 38. At this time, the stopper 31 is released again, and the stopper 31 is restricted in the current position by the fixing rod 35 and the placement section 38, thereby fixing the relative position of the inner clamp 15 and the outer clamp 16; S4. When the stopper 31 is pressed down, the rack section 42 on the side wall of the stopper 31 enters the groove 43 and meshes with the gear portion 44, so that the gear portion 44 drives the connecting rod 45 to rotate. The rotation of the connecting rod 45 compresses the torsion spring 46. At the same time, the connecting rod 45 also drives the fixed round rod 49 to rotate. After rotation, the fixed round rod 49 presents a state with the flat end facing upward, thereby facilitating the movement of the short rod 25. S5, start the pressure head 1, perform a pressure test on the rubber bearing body from directly above, and record the data for multiple tests, so as to test the compressive performance of the rubber bearing body in the axial direction; S6, then start the servo motor 11, the operation of the servo motor 11 will drive the moving threaded rod 23 to rotate, the clamping plate 29 set on the moving threaded rod 23 will move along the extension rod 28, at this time, the push plate 24 will not move because it is not in contact with the moving threaded rod 23; S7, the rotation of the moving threaded rod 23 will also drive the telescopic rod 50 to rotate, and the semicircular block 51 fixedly connected to the telescopic rod 50 will rotate out of the card cavity 52. ​​When the card plate 29 moves into the card slot 27, the semicircular block 51 will just completely rotate out of the card cavity 52; S8, after the clamping plate 29 moves into the clamping slot 27, due to the magnetic connection between the clamping plate 29 and the clamping slot 27, the clamping plate 29 drives the push plate 24 to move along the short slot 26, and the top plate 8 fixedly connected to the top of the push plate 24 drives the top top plate 10 to push the top cover 5 to an offset position relative to the basin base 3; S9, and then start the pressure head 1 again, and perform a pressure test on the rubber bearing body in the inclined state from directly above, and record the data after multiple tests, so as to test the compressive performance of the rubber bearing body when facing the pressure in the inclined direction.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A bridge engineering rubber bearing testing machine, comprising a testing machine body and a rubber bearing body, the testing machine body comprising a pressure head (1) and a test bench (2), the pressure head (1) being located above the test bench (2), the rubber bearing body being located on the test bench (2), the rubber bearing body comprising a basin-type base (3), a rubber block (4) and a top cover (5), the rubber block (4) being located inside the basin-type base (3), and the top cover (5) being installed on the top of the rubber block (4), characterized in that: Measuring rulers are respectively installed on both sides of the test bench (2), the measuring rulers are clamped on the side walls of the test bench (2), and side support members are installed on the measuring rulers; The side support member comprises a bottom plate (6), a bottom top plate (7), a top plate (8), a fixed plate (9), a top top plate (10) and a servo motor (11); the bottom plate (6) is fixedly connected to the side wall of the bottom top plate (7); the bottom plate (6) abuts against the side wall of the basin-type base (3); the fixed plate (9) is movably inserted into the top plate (8); an end of the top plate (8) away from the fixed plate (9) is fixedly connected to the side wall of the top top plate (10); the top top plate (10) abuts against the side wall of the top cover (5); the servo motor (11) is arranged between the fixed plate (9) and the bottom plate (6); and the servo motor (11) drives the top top plate (10) to move; The side wall of the fixing plate (9) and the side wall of the bottom plate (6) are both provided with threaded holes, a fixing threaded rod (12) is threadedly connected to the two threaded holes, a turning handle (13) is installed on the top of the fixing threaded rod (12), and two fixing holes (14) are provided on the top of the test bench (2), and the two fixing threaded rods (12) are respectively inserted into the two fixing holes (14).

2. The bridge engineering rubber bearing testing machine according to claim 1 is characterized in that: The measuring ruler comprises an inner clamp ruler (15) and an outer clamp ruler (16); a moving groove (17) is provided at one end of the outer clamp ruler (16) facing the inner clamp ruler (15); the inner clamp ruler (15) is slidably connected to the moving groove (17); side walls of the inner clamp ruler (15) and the outer clamp ruler (16) facing away from each other are respectively fixed with clamp plates (18); the two clamp plates (18) are respectively abutted against the side walls of the test bench (2); scale lines (19) are provided at the top of the inner clamp ruler (15) and the outer clamp ruler (16); the scale line (19) is zero on the side close to the clamp plate (18).

3. The bridge engineering rubber bearing testing machine according to claim 2 is characterized in that: A plurality of fixed vertical bars (20) are installed at the top of one end of the inner clamp ruler (15) close to the outer clamp ruler (16), two limit rods (21) are fixedly installed at the top of one end of the outer clamp ruler (16) close to the inner clamp ruler (15), a limit block (22) matching the limit rod (21) is installed at the bottom of the bottom plate (6), and the limit hole is slidably connected to the limit rod (21).

4. The bridge engineering rubber bearing testing machine according to claim 3 is characterized in that: A moving threaded rod (23) is fixedly provided at the output end of the servo motor (11); a push plate (24) is movably sleeved outside the moving threaded rod (23); the top of the push plate (24) is fixedly connected to the bottom of the top plate (8); a short rod (25) is fixedly connected to the bottom of the push plate (24); a short slot (26) is provided at the top of the bottom plate (6); the short rod (25) is slidably connected in the short slot (26); a clamping slot (27) is provided on the side wall of the push plate (24); two extension rods (28) are fixedly provided in the clamping slot (27); a clamping plate (29) is movably sleeved on the two extension rods (28); the shape of the clamping plate (29) is consistent with that of the clamping slot (27); the clamping plate (29) and the clamping slot (27) are magnetically connected; and the clamping plate (29) is threadably connected to the moving threaded rod (23).

5. The bridge engineering rubber bearing testing machine according to claim 4, characterized in that: The side wall of the bottom plate (6) is provided with a through hole (30), a stopper (31) is installed in the through hole (30), a plurality of clamping strips (32) are fixedly arranged at the bottom of the stopper (31), the plurality of clamping strips (32) respectively abut against the side walls of a plurality of fixed vertical strips (20), and the clamping strips (32) and the fixed vertical strips (20) are both made of rubber.

6. The bridge engineering rubber bearing testing machine according to claim 5, characterized in that: Side holes (33) are respectively provided on both sides of the through hole (30), and side blocks (34) are also respectively provided on both sides of the stop block (31). A fixing rod (35) is fixedly provided on the side wall of the side hole (33), and a placement groove is provided on the side wall of the side hole (33). The placement groove comprises a vertical section (36), an inclined section (37), a placement section (38) and a connecting section (40). The inclined section (37) is connected to the vertical section (36), the placement section (38) is connected to the inclined section (37), and the connecting section (40) is connected to the placement section (38). The connecting section (40) and the vertical section (36) are located on the same straight line. A heart-shaped block (41) is fixedly provided in the placement section (38), and the fixing rod (35) slides in the vertical section (36).

7. The bridge engineering rubber bearing testing machine according to claim 5, characterized in that: A rack segment (42) is fixedly provided on the side wall of the stop block (31) facing the bottom top plate (7); a groove (43) is provided on the side wall of the through hole (30); a gear portion (44) is rotatably connected in the groove (43); the gear portion (44) is meshed with the rack segment (42); a connecting rod (45) is fixedly provided on the side wall of the gear portion (44); a torsion spring (46) is provided on the outer sleeve of the connecting rod (45); a positioning plate (47) is fixedly provided on the side wall of the connecting rod (45); a flat plate (48) is abutted against the side wall of the positioning plate (47); a fixed round rod (49) is fixedly provided on one end of the connecting rod (45) away from the gear portion (44); the fixed round rod (49) is arranged in the short groove (26); and the top of the fixed round rod (49) is consistent in shape with the short groove (26).

8. The bridge engineering rubber bearing testing machine according to claim 4, characterized in that: A telescopic rod (50) is fixedly arranged at one end of the moving threaded rod (23) away from the servo motor (11); a semicircular block (51) is fixedly arranged at the bottom of the top top plate (10); a cavity is opened in the top top plate (10); the semicircular block (51) is rotatably connected in the cavity; the telescopic rod (50) passes through the cavity and is fixedly connected to the side wall of the semicircular block (51); a clamping cavity (52) is opened at the top of the bottom top plate (7); the shape of the clamping cavity (52) is consistent with that of the semicircular block (51).

9. The bridge engineering rubber bearing testing machine according to claim 1, characterized in that: The bottom of the bottom top plate (7) abuts against the top of the test bench (2), and the sum of the heights of the top top plate (10) and the bottom top plate (7) is less than the height of the top cover (5).

10. A detection method for a bridge engineering rubber bearing testing machine according to any one of claims 1 to 9, characterized in that: The specific steps include: S1. Pull the inner clamp (15) and the outer clamp (16) apart so that the two clamps (18) respectively abut against the side walls of the test bench (2), and then place the rubber bearing body on the test bench (2). After the same scale is calculated on both sides, place the rubber bearing body in the middle of the test bench (2); S2, then rotating the handle (13) so that the fixed threaded rod (12) can rotate in the fixing plate (9) and the bottom plate (6), and then inserted into the fixing hole (14), at which time the top plate (10) abuts against the side wall of the top cover (5), and the bottom plate (7) abuts against the side wall of the basin-type base (3); S3, the stopper (31) is then pressed down along the perforation (30), so that the clamping strip (32) at the bottom of the stopper (31) and the fixed vertical strip (20) are pressed against each other. During the pressing process, the fixing rod (35) on the side wall of the side hole (33) moves along the vertical section (36) and the inclined section (37) in sequence, and finally stops at the placement section (38). At this time, the stopper (31) is released again, and the stopper (31) is restricted in the current position by the fixing rod (35) and the placement section (38), thereby fixing the relative position of the inner clamp (15) and the outer clamp (16); S4. During the downward pressing process of the stopper (31), the rack section (42) on the side wall of the stopper (31) enters the groove (43) and meshes with the gear portion (44), so that the gear portion (44) drives the connecting rod (45) to rotate. The rotation of the connecting rod (45) compresses the torsion spring (46). At the same time, the connecting rod (45) also drives the fixed round rod (49) to rotate. After the rotation, the fixed round rod (49) presents a state with the flat end facing upward, thereby facilitating the movement of the short rod (25); S5, starting the pressure head (1) to perform a pressure test on the rubber bearing body from above, and recording data for multiple tests, thereby testing the compressive performance of the rubber bearing body in the axial direction; S6, then starting the servo motor (11), the operation of the servo motor (11) will drive the moving threaded rod (23) to rotate, and the clamping plate (29) arranged on the moving threaded rod (23) will move along the extension rod (28), and at this time, the pushing plate (24) will not move because it is not in contact with the moving threaded rod (23); S7, the rotation of the moving threaded rod (23) also drives the telescopic rod (50) to rotate, and the semicircular block (51) fixedly connected to the telescopic rod (50) will rotate out of the card cavity (52), and when the card plate (29) moves into the card slot (27), the semicircular block (51) will just completely rotate out of the card cavity (52); S8, after the clamping plate (29) moves into the clamping slot (27), due to the magnetic connection between the clamping plate (29) and the clamping slot (27), the clamping plate (29) drives the push plate (24) to move along the short slot (26), and the top plate (8) fixedly connected to the top of the push plate (24) drives the top top plate (10) to push the top cover (5) to an offset position relative to the basin-type base (3); S9, then start the pressure head (1) again, and perform a pressure test on the rubber bearing body in the tilted state from directly above, and record the data after multiple tests, so as to test the compressive performance of the rubber bearing body when facing the pressure in the tilted direction.

Images