Building wall light steel keel strength detection equipment

Abstract

The invention discloses building wall light steel keel strength detection equipment, and belongs to the technical field of light steel keel detection.The building wall light steel keel strength detection equipment comprises a detection table, supporting end plates are arranged at the two ends of the detection table, the two supporting end plates are connected with a test seat through an induction table, a hydraulic cylinder is arranged on the test seat, and the output end of the hydraulic cylinder penetrates through the test seat and extends downwards; a conveying groove is formed in the detection table, a driving ring is connected to the interior of the conveying groove through a relative conveying assembly, detection cylinders are rotationally connected to the inner side wall of the driving ring, rotating rings are fixedly arranged at the opposite ends of the two detection cylinders, and a torsion driving device for driving the rotating rings is arranged on the supporting end plate. The two ends of the light steel joist are supported in a wrapping mode through the detection cylinders, the size of the light steel joist is detected through first-time movement of the two detection cylinders, and the strength of all parts on the light steel joist is effectively detected through second-time different-place movement of the two detection cylinders.

Description

Technical Field

[0001] The invention relates to the technical field of light steel keel detection, and in particular to a light steel keel strength detection device for a building wall. Background Art

[0002] Light steel keel is a ceiling or wall skeleton material made of cold-rolled steel plate (strip), galvanized steel plate (strip) or colored spray-coated steel plate (strip), and is made of thin-walled steel produced by cold bending technology. Light steel keel ceiling has the functions of light weight, high strength, sound absorption, constant temperature, etc. It is suitable for the shape decoration of the roof of various buildings and the basic material of the internal and external walls and scaffolding ceiling of buildings. It also has the advantages of short construction period and simple construction. Since it is a thin-walled steel produced by cold bending process, the load-bearing capacity of the light steel keel needs to be controlled during actual use to avoid bending of the light steel keel. In actual use, the light steel keel used for suspended ceiling needs to be installed on the wall through hangers and expansion screws. The strength of the light steel keel seriously affects the number of hangers. When there are too few hangers, the spacing between the hangers installed on the light steel keel will become larger. When the strength of the light steel keel is insufficient, the light steel keel will be bent and broken in the middle. When there are too many hangers, the number of hangers will increase, which will increase the construction cost, reduce the processing efficiency and affect the construction period. Light steel keels of different specifications and light steel keels of different load-bearing capacities will have different installation requirements. Furthermore, when the light steel keel is under pressure at one end, the overall torsional resistance of the light steel keel is also an important indicator of the strength of the light steel keel. At present, there is no equipment on the market for testing the strength requirements of light steel keels. For this reason, a light steel keel strength testing equipment for building walls is first proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that light steel keels of different specifications and light steel keels of different bearing capacities have different installation requirements in the prior art. When the light steel keel is under pressure at one end, the overall torsional resistance of the light steel keel is also an important indicator of the strength of the light steel keel. At present, there is no equipment on the market for testing the strength requirements of light steel keels. Therefore, a light steel keel strength testing device for building walls is proposed.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A strength testing device for light steel keels of building walls, comprising a testing platform, support end plates are arranged at both ends of the testing platform, the two support end plates are connected to a test seat through an induction platform, a hydraulic cylinder is arranged on the test seat, the output end of the hydraulic cylinder passes through the test seat and extends downward, and is fixedly connected to an extrusion piece, a conveying groove is opened on the testing platform, a driving ring is connected in the conveying groove through a relative conveying component, a detection cylinder is rotatably connected to the inner side wall of the driving ring, a rotating ring is fixedly arranged at the back end of the two detection cylinders, and a torque driving device for driving the rotating ring is arranged on the support end plate; The detection tube is provided with a detection opening, a central detection block is arranged at the top of the detection opening, a detection expansion opening is provided in the central detection block, blocks to be tested that can move horizontally are arranged on both sides of the detection expansion opening, and a displacement sensing plate for detecting the movement of the blocks to be tested is arranged on the inner wall of the detection expansion opening; A rotation sensor is arranged at the bottom of the detection port, the output end of the rotation sensor is connected to the tested rotating shaft, and a rotating wheel is fixedly connected to the tested rotating shaft. Pressure test pieces are arranged at both ends of the detection port, and arc-shaped resistance pieces for squeezing the pressure test pieces are arranged on both sides of the support end plate.

[0005] Preferably, two groups of infrared sensors arranged opposite to each other are arranged on the sensing platform, and a sensing end adapted to the infrared sensor is arranged on the detection platform, and the distance between two adjacent groups of infrared sensors is the width of the light steel keel.

[0006] Preferably, the relative conveying assembly includes a driving motor arranged on a side supporting end plate, the output end of the driving motor passes through the conveying groove and is fixedly connected to a screw shaft, the bottom of the driving ring is fixedly connected to a driving block, and the driving block is threadedly connected to the screw shaft through a screw nut.

[0007] Preferably, the torque driving device includes a torque motor arranged on the supporting end plate, the output end of the torque motor extends outward through the side wall of the supporting end plate and is fixedly connected to a torque gear, and the outer side wall of the rotating ring is provided with a meshing tooth groove meshing with the torque gear.

[0008] Preferably, the block under test is located in the detection telescopic opening, and a rubber blocking plate is provided on its side wall. Both ends of the detection telescopic opening are through-set. A rotating disk is rotatably provided on the side wall of the supporting end plate. Two relatively arranged triangular interference blocks are provided on the rotating disk, and the triangular interference blocks are adapted to the detection telescopic opening.

[0009] Preferably, the pressure testing piece includes a through movable opening opened on both sides of the detection opening, a movable extrusion cylinder is slidably arranged in the through movable opening, a retaining ring is arranged at both ends of the movable extrusion cylinder, an extrusion wheel is arranged at the end of the movable extrusion cylinder located inside the detection opening, and the other end of the movable extrusion cylinder is connected to a resistance block through a telescopic spring column.

[0010] Preferably, the arc-shaped abutment member comprises a support frame connected to the side walls of two support end plates through an adjusting member, and arc-shaped abutment rods matching the abutment block are arranged on the support frame.

[0011] Preferably, the screw shaft is provided with threaded layers, and the spiral directions of the two threaded layers are opposite.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention wraps and supports both ends of the light steel keel through the detection tubes, realizes the size detection of the light steel keel through the first movement of the two detection tubes, and realizes the effective detection of the strength of each part of the light steel keel through the second remote movement of the two detection tubes.

[0013] 2. In the ceiling installation setting of the light steel keel of the present invention, the distance between the two detection tubes and the extrusion part on the test seat is gradually increased, and pressure detection is performed in the process to obtain the relationship data between the maximum spacing and the bearing gravity supported by the light steel keel, thereby obtaining the maximum spacing when the light steel keel is installed, ensuring the normal use of the light steel keel after installation.

[0014] 3. The present invention can drive the detection cylinders at both ends to rotate in opposite directions through a torque motor, thereby rotating the two ends of the light steel keel, and determine the position where the torsional deformation of the side wall of the light steel keel occurs through an infrared sensor to determine the deformation position and angle of the light steel keel, thereby achieving the effect of detecting the torsional strength of the light steel keel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a building wall light steel keel strength testing device proposed by the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle; Figure 4 This is a schematic diagram of the cross-sectional structure of a detection tube in a building wall light steel keel strength detection device proposed by the present invention; Figure 5 It is a schematic diagram of the enlarged structure at C in 4; Figure 6This is a schematic diagram of the top cross-sectional structure of a building wall light steel keel strength detection device proposed by the present invention.

[0016] In the figure: 1. test table; 2. support end plate; 3. test seat; 4. hydraulic cylinder; 5. extrusion piece; 6. drive ring; 7. detection cylinder; 8. rotating ring; 9. detection port; 10. central detection block; 11. detection telescopic port; 12. block to be tested; 13. displacement sensing plate; 14. rotation sensor; 15. rotating wheel; 16. infrared sensor; 17. drive motor; 18. screw shaft; 19. drive block; 20. torque motor; 21. torque gear; 22. rubber blocking plate; 23. rotating disk; 24. triangular interference block; 25. mobile extrusion cylinder; 26. retaining ring; 27. extrusion wheel; 28. interference block; 29. ​​support frame; 30. arc-shaped interference rod; 31. induction table; 32. conveying groove; 33. tested rotating shaft; 34. telescopic spring column; 35. displacement sensor; 36. fixing block; 37. adjusting screw. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Example, see Figure 1-6 A strength testing device for a light steel keel of a building wall includes a testing platform 1, support end plates 2 are arranged at both ends of the testing platform 1, and the two support end plates 2 are connected to a test seat 3 through a sensing platform 31. Further, two groups of infrared sensors 16 arranged opposite to each other are arranged on the sensing platform 31. The infrared sensors 16 are prior art and will not be described in detail here. The testing platform 1 is provided with a sensing end adapted to the infrared sensors 16, and the distance between two adjacent groups of infrared sensors 16 is the width of the light steel keel; It should be noted that when the light steel keel is subjected to torque testing, the light steel keel will deflect due to the torque. The infrared sensor 16 can be used to determine the position where the torsional deformation of the side wall of the light steel keel occurs, so as to determine the deformation strength of the light steel keel, thereby achieving the effect of testing the torsional strength of the light steel keel. The test seat 3 is provided with a hydraulic cylinder 4, which is a prior art and will not be described in detail here. The output end of the hydraulic cylinder 4 extends downward through the test seat 3 and is fixedly connected with an extrusion piece 5. A conveying groove 32 is provided on the test table 1, and a driving ring 6 is connected in the conveying groove 32 through a relative conveying component. Furthermore, the relative conveying assembly includes a driving motor 17 arranged on one side supporting end plate 2, the output end of the driving motor 17 penetrates into the conveying groove 32 and is fixedly connected to a lead screw shaft 18, a driving block 19 is fixedly connected to the bottom of the driving ring 6, the driving block 19 is threadedly connected to the lead screw shaft 18 through a lead screw nut, and a threaded layer is arranged on the lead screw shaft 18, and the spiral directions of the two threaded layers are opposite; When the screw shaft 18 rotates, the two driving blocks 19 move relative to each other due to the thread layers arranged in opposite directions.

[0019] The inner wall of the driving ring 6 is rotatably connected with a detection cylinder 7, and a rotating ring 8 is fixedly arranged at the back end of the two detection cylinders 7. A torque driving device for driving the rotating ring 8 is arranged on the support end plate 2. The torque driving device includes a torque motor 20 arranged on the support end plate 2. The torque motor 20 is a kind of servo motor, which is a prior art and will not be described in detail here. The output end of the torque motor 20 extends outward through the side wall of the support end plate 2 and is fixedly connected with a torque gear 21. The outer wall of the rotating ring 8 is provided with a meshing tooth groove meshing with the torque gear 21, and the meshing tooth groove meshes with the torque gear 21. A detection opening 9 is provided in the detection tube 7, a central detection block 10 is arranged at the top of the detection opening 9, a detection telescopic opening 11 is provided in the central detection block 10, and test blocks 12 capable of horizontal movement are arranged on both sides of the detection telescopic opening 11, and a displacement sensing plate 13 for detecting the movement of the test block 12 is arranged on the inner wall of the detection telescopic opening 11, wherein a displacement sensor 35 is arranged on the displacement sensing plate 13, and the displacement sensor 35 can detect the moving distance of the test block 12 in real time.

[0020] Furthermore, the tested block 12 is located in the detection telescopic opening 11, and a rubber blocking plate 22 is provided on its side wall. Both ends of the detection telescopic opening 11 are through-set, and a rotating disk 23 is rotatably provided on the side wall of the supporting end plate 2. Two relatively arranged triangular interference blocks 24 are provided on the rotating disk 23, and the triangular interference blocks 24 are adapted to the detection telescopic opening 11.

[0021] It should be noted that the detection cylinder 7 moved under the action of the driving block 19 will make the rubber blocking plate 22 provided in the detection cylinder 7 contact with the triangular abutment block 24 first when approaching the supporting end plate 2. Under the action of the triangular abutment block 24, the two rubber blocking plates 22 and the detected block 12 approaching each other during the detection process will be squeezed and reset to the farthest state. At this time, the detected block 12 just contacts with the inner wall of the light steel keel to be detected, so as to realize the next detection. When performing torque detection, the triangular interference block 24 is in a state of squeezing the block 12 to be tested. At this time, the block 12 to be tested is inside the light steel keel, and the light steel keel is wrapped by the detection port 9 in the detection tube 7. At this time, the light steel keel can be tested by the torque drive device, and deformation of both ends of the tested keel will not occur.

[0022] A rotation sensor 14 is provided at the bottom of the detection opening 9. The rotation sensor 14 is a prior art and will not be described in detail herein. The output end of the rotation sensor 14 is connected to a detected rotating shaft 33, and a rotating wheel 15 is fixedly connected to the detected rotating shaft 33. It should be noted that when the rotating wheel 15 is in contact with the light steel keel, when the light steel keel is undergoing load-bearing strength testing, or when the light steel keel is bent or broken under stress, the light steel keels at both ends will inevitably move. When the light steel keel moves, the rotating wheel 15 will inevitably rotate, thereby enabling the detection of the bending and breaking of the light steel keel to be achieved through the rotating sensor 14.

[0023] Pressure test pieces are provided at both ends of the detection opening 9. Further, the pressure test piece includes a through-moving opening opened on both sides of the detection opening 9, a moving extrusion cylinder 25 is slidably provided in the through-moving opening, a clamping ring 26 is provided at both ends of the moving extrusion cylinder 25, an extrusion wheel 27 is provided at the end of the moving extrusion cylinder 25 located inside the detection opening 9, and the other end of the moving extrusion cylinder 25 is connected to a resistance block 28 through a telescopic spring column 34; Both sides of the support end plate 2 are provided with arc-shaped resistance members for squeezing the pressure test piece. Further, the arc-shaped resistance member includes a support frame 29 connected to the side walls of the two support end plates 2 through an adjusting member. The adjusting member includes a fixed block 36 fixed on the support end plate 2. The fixed block 36 is internally threaded with an adjusting screw 37. One end of the adjusting screw 37 is axially fixedly connected to the support frame 29 by circumferential rotation. By rotating the adjusting screw 37 in the vertical direction to move the support frame 29 up and down, the position of the arc-shaped resistance rod 30 can be changed, so that when measuring the size, the arc-shaped resistance rod 30 does not contact the resistance block 28. When performing the extrusion strength test, the arc-shaped resistance rod 30 is released from the resistance block 28. The support frame 29 is relatively provided with an arc-shaped resistance rod 30 adapted to the resistance block 28. The arc-shaped resistance rod 30 is set so that when the resistance block 28 contacts the arc-shaped resistance rod 30 during movement, the resistance block 28 will be resisted by the arc-shaped resistance rod 30 and move inward, so that the pressure test piece can perform pressure detection on the light steel keel inside.

[0024] When measuring the size of the light steel keel, the present invention moves the detection tubes 7 on both sides to the position closest to the supporting end plate 2. At this time, one end of the light steel keel is first placed in the detection opening 9. Since the detection tube 7 will be slightly deformed when subjected to force, the other end of the light steel keel is also placed in the detection opening 9. The two ends of the light steel keel can be placed in the detection opening 9 in the detection tube 7, and the position of the arc-shaped resistance rod 30 is adjusted by rotating the adjustment screw 37, so that the arc-shaped resistance rod 30 moves to a position misaligned with the resistance block 28. Under the action of the relative conveying assembly, the two detection tubes 7 will approach each other from both sides. When the detection tube 7 is away from the supporting end plate 2, the tested block 12 is not supported inside. In this state, when the detection tube 7 moves on the light steel keel, when the tested block 12 moves, it is proved that there is a problem with the size of the "U"-shaped light steel keel. After completing the size measurement, the detection tube 7 is returned to the support end plate 2, and the arc-shaped resistance rod 30 is moved to the position corresponding to the resistance block 28, and the detection tube 7 is driven to move again by the relative conveying assembly. In this process, the arc-shaped resistance rod 30 will apply inward pressure to the resistance block 28, and the resistance block 28 will apply pressure to the extrusion wheel 27 through the telescopic spring column 34. Under the action of pressure, inward pressure will be applied to the light steel keel from both sides, and the applied pressure is in a constant state. At this time, when the strength of the light steel keel is certain, its deformation makes the moving distance of the tested block 12 constant. When the strength of the light steel keel is weak at a certain place, the pressure will aggravate the deformation at this place, which will cause the moving distance of the tested block 12 to increase. Therefore, at this time, the displacement sensor 35 in the displacement sensing plate 13 can be used to effectively detect the strength of each part of the light steel keel; After the test is completed, the distance between the two test cylinders 7 and the extrusion piece 5 on the test seat 3 is gradually increased. During the gradual increase process, the hydraulic cylinder 4 arranged on the test seat 3 drives the extrusion piece 5 to apply the same test force each time until the support spacing of the test cylinder 7 on the light steel keel cannot meet the support of the light steel keel, and the light steel keel breaks, bends and deforms. When the light steel keel bends and breaks, when the light steel keel bends and breaks under stress, the light steel keels at both ends will inevitably move. When the light steel keel moves, the rotating wheel 15 will inevitably rotate, so that the bending and breaking of the light steel keel can be detected in time through the rotating sensor 14, and then the maximum spacing of the light steel keel during installation is obtained through the distance between the two test cylinders 7, so as to ensure the normal use of the light steel keel after installation; Furthermore, when the torque test is performed on the light steel keel, the triangular resistance block 24 is in a state of squeezing the tested block 12. At this time, the tested block 12 will be inside the light steel keel, and the light steel keel will be wrapped by the detection port 9 in the detection tube 7. At this time, the torque motor 20 is turned on to rotate the torque gear 21 connected to its output end to drive the rotating ring 8 to rotate, so that the detection tube 7 drives the two ends of the light steel keel to rotate in the opposite direction to achieve torque detection. When the torque is detected, the light steel keel will deflect due to the torque. The infrared sensor 16 can be used to determine the position where the torsional deformation of the side wall of the light steel keel occurs, so as to determine the deformation position and angle of the light steel keel, thereby achieving the effect of detecting the torsional strength of the light steel keel.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A building wall light steel keel strength testing device, comprising a testing platform (1), characterized in that: The detection platform (1) is provided with support end plates (2) at both ends, the two support end plates (2) are connected to a test seat (3) via an induction platform (31), a hydraulic cylinder (4) is provided on the test seat (3), an output end of the hydraulic cylinder (4) passes through the test seat (3) and extends downward, and is fixedly connected to an extrusion piece (5), a conveying groove (32) is provided on the detection platform (1), a driving ring (6) is connected in the conveying groove (32) via a relative conveying component, an inner side wall of the driving ring (6) is rotatably connected to a detection cylinder (7), a rotating ring (8) is fixedly provided at the back ends of the two detection cylinders (7), and a torque driving device for driving the rotating ring (8) is provided on the support end plates (2); The detection tube (7) is provided with a detection opening (9), a central detection block (10) is arranged at the top of the detection opening (9), a detection expansion opening (11) is provided in the central detection block (10), a detection block (12) capable of horizontal movement is arranged on both sides of the detection expansion opening (11), and a displacement sensing plate (13) for detecting the movement of the detected block (12) is arranged on the inner wall of the detection expansion opening (11); a rotation sensor (14) is arranged at the bottom of the detection opening (9), an output end of the rotation sensor (14) is connected to a detected rotating shaft (33), a rotating wheel (15) is fixedly connected to the detected rotating shaft (33), pressure test pieces are arranged at both ends of the detection opening (9), and arc-shaped abutment pieces for pressing the pressure test piece are arranged on both sides of the support end plate (2).

2. A building wall light steel keel strength detection device according to claim 1, characterized in that: The sensing platform (31) is provided with two groups of infrared sensors (16) arranged opposite to each other, the detection platform (1) is provided with sensing ends adapted to the infrared sensors (16), and the distance between two adjacent groups of infrared sensors (16) is the width of the light steel keel.

3. A building wall light steel keel strength testing device according to claim 1, characterized in that: The relative conveying assembly comprises a drive motor (17) arranged on a supporting end plate (2) at one side, the output end of the drive motor (17) extending into the conveying groove (32) and fixedly connected to a lead screw shaft (18), the bottom of the drive ring (6) being fixedly connected to a drive block (19), the drive block (19) being threadedly connected to the lead screw shaft (18) via a lead screw nut.

4. The building wall light steel keel strength testing equipment according to claim 1 is characterized in that: The torque drive device comprises a torque motor (20) arranged on the support end plate (2); an output end of the torque motor (20) extends outward through a side wall of the support end plate (2) and is fixedly connected to a torque gear (21); and an outer side wall of the rotating ring (8) is provided with a meshing tooth groove meshingly connected to the torque gear (21).

5. The building wall light steel keel strength testing equipment according to claim 1 is characterized in that: The block to be tested (12) is located in the detection telescopic opening (11), and a rubber blocking plate (22) is provided on its side wall. Both ends of the detection telescopic opening (11) are penetrated. A rotating disk (23) is rotatably provided on the side wall of the supporting end plate (2). Two triangular abutment blocks (24) are arranged opposite to each other on the rotating disk (23). The triangular abutment blocks (24) are adapted to the detection telescopic opening (11).

6. The building wall light steel keel strength testing equipment according to claim 1 is characterized in that: The pressure test piece comprises a through-moving opening opened on both sides of the detection opening (9), a moving extrusion cylinder (25) is slidably arranged in the through-moving opening, a clamping ring (26) is arranged at both ends of the moving extrusion cylinder (25), an extrusion wheel (27) is arranged at the end of the moving extrusion cylinder (25) located in the detection opening (9), and the other end of the moving extrusion cylinder (25) is connected to a resistance block (28) via a telescopic spring column (34).

7. A building wall light steel keel strength testing device according to claim 6, characterized in that: The arc-shaped abutment member comprises a support frame (29) connected to the side walls of two support end plates (2) via an adjusting member, and an arc-shaped abutment rod (30) adapted to the abutment block (28) is arranged on the support frame (29).

8. The building wall light steel keel strength testing equipment according to claim 3 is characterized in that: The screw shaft (18) is provided with a thread layer, and the two thread layers have opposite spiral directions.

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