Steel strand tension strength detection device

Abstract

The utility model discloses a steel strand tension strength detection device, which relates to the technical field of tension detection, and comprises a shell, the right end of the shell is fixedly provided with a stretching rotation structure, the top of the shell is fixedly provided with a protection structure, the stretching rotation structure comprises four guide rods, and the four guide rods are fixedly arranged on the shell. The left sides and the right sides of the four guide rods are rotationally connected to the four corners of the left side and the right side in the shell, the outer walls of the four guide rods are slidably connected with the four corners of the mounting base correspondingly, the upper position and the lower position of the middle of the mounting base are in threaded connection with first threaded rods correspondingly, and the right ends of the two first threaded rods extend out of the right end of the shell. According to the device for detecting the tensile strength of the steel strand, the steel strand can be rotated while being subjected to tensile strength detection under the action of the tensile rotating structure, so that the stress state of the steel strand in actual use can be simulated, and the strength and the performance of the steel strand can be evaluated more accurately; and a more reliable basis is provided for actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of tension detection, in particular to a steel strand tension strength detection device. Background Art

[0002] A steel strand tensile strength testing device is a device specially used for mechanical property testing of prestressed steel strands. The function of steel strand tensile strength testing is to reflect the mechanical properties of steel strands and ensure the ability of building structures to bear weight. The inspection of tensile strength index is an important guarantee to ensure that building structures can bear weight. It reflects the degree of deformation of steel strands when subjected to tension and is also one of the important indicators for measuring the strength and durability of steel strands.

[0003] For example, a Chinese patent with publication number CN217466500U discloses a steel strand tensile strength testing device, comprising a first support and a second support, wherein a second support is provided above the first support, and an inner cavity is provided inside the first support and the second support. In the present invention, a hydraulic jack fastened in the inner cavity is opened by a control panel, so that the hydraulic jacks in the first support and the second support respectively push the bearing plate synchronously under the action of a T-block. Since the two ends of the steel strand are fixedly connected to the bearing plate and the support plate respectively by anchors, the bearing plate continuously applies tension to one end of the steel strand during the extension process of the hydraulic jack, thereby realizing the detection of the tensile strength of the steel strand. In this process, by pulling the metal sheet between the two scales in the covering shell, the ink-soaked sponge block on the metal sheet is urged to approach the steel strand, thereby realizing the marking of the position of the steel strand in the initial state. After the tension is applied, the tension elongation is directly read through the scale.

[0004] The existing technology has the following problems:

[0005] During actual use, the stress conditions of steel strands are relatively complex. The strength test of steel strands cannot fully reflect the actual stress conditions of steel strands, which leads to deviations in the understanding of the strength of steel strands. At the same time, simple tensile strength testing may cause stress to be concentrated at a certain position of the steel strand, which leads to errors in the test. Utility Model Content

[0006] The utility model provides a steel strand tensile strength detection device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A steel strand tensile strength detection device comprises a shell, a tensile rotating structure is fixedly installed on the right end of the shell, and a protective structure is fixedly installed on the top of the shell.

[0009] Preferably, the stretching rotation structure includes four guide rods, the left and right sides of the four guide rods are rotatably connected to the four corners on the left and right sides of the shell, the outer walls of the four guide rods are respectively slidably connected to the four corners of the mounting seat, the upper and lower positions of the middle part of the mounting seat are threadedly connected with the first threaded rod, the right ends of the two first threaded rods extend out of the right end of the shell, and the right ends of the two first threaded rods are fixedly installed with a transmission assembly, the transmission assembly includes a protective shell, a toothed belt and two transmission gears, the two transmission gears and the toothed belts are both located inside the protective shell, the outer walls of the two transmission gears are meshed with the inner walls of the toothed belts, the left ends of the two transmission gears are fixedly connected to the right ends of the two first threaded rods, and the right end of the protective shell is fixedly installed with a first motor, and the output end of the first motor is fixedly connected to the right end of the transmission gear located below.

[0010] Preferably, a disc is rotatably connected to the middle part of the mounting seat, and a rectangular block is fixedly connected to the left end of the disc and the left side of the shell, and magnetic push blocks are slidably connected to the front and rear positions of the two rectangular blocks, and the opposite surfaces of the magnetic push blocks at the front and rear positions are fixedly connected to splints, and the opposite surfaces of the splints at the front and rear positions are fixedly connected to anti-sliding blocks.

[0011] Preferably, the top ends of the two rectangular blocks are fixedly connected to a bracket, and the top ends of the two brackets are fixedly installed with a second motor, the output ends of the two second motors extend to the bottom ends of the middle parts of the two brackets respectively, and the output ends of the two second motors are fixedly connected to a second threaded rod, and the bottom ends of the two second threaded rods are rotatably connected to the middle parts of the top ends of the two rectangular blocks respectively, and the outer walls of the two second threaded rods are threadedly connected to push rods, and the front and rear positions of the bottom ends of the two push rods are respectively plugged into the front and rear positions of the top ends of the two rectangular blocks, and the front and rear ends of the bottom ends of the two push rods are respectively overlapped with the inclined ends of the four magnetic push blocks.

[0012] Preferably, the right end of the disc is fixedly connected to a worm gear, and the front and rear positions of the top right side of the mounting seat are fixedly connected to mounting plates, the opposite surfaces of the mounting plates are rotatably connected to a worm, the outer wall of the worm is meshed with the outer wall of the worm gear, and the front end of the mounting plate in the front is fixedly connected to a third motor, the output end of the third motor extends to the rear end of the mounting plate in the front, and the output end of the third motor is fixedly connected to the front end of the worm.

[0013] Preferably, the protective structure includes a U-shaped frame, the rear end of the U-shaped frame is fixedly connected to the front end of the shell, the left and right positions inside the U-shaped frame are fixedly connected to the first elastic telescopic rods, and the output ends of the two first elastic telescopic rods are fixedly connected to the protective plates.

[0014] Preferably, a collection frame is snap-connected to the bottom of the interior of the shell, and a handle is fixedly connected to the middle of the front end of the collection frame.

[0015] Preferably, the left and right positions of the bottom end of the protective plate are fixedly connected with a card block, the front ends of the two card blocks are fixedly connected with a second elastic telescopic rod, the output ends of the two second elastic telescopic rods are fixedly connected with a slope block, and the outer walls of the two slope blocks are respectively plugged into the left and right positions of the front of the collection frame.

[0016] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0017] 1. The utility model provides a steel strand tensile strength testing device. Through the action of the tensile rotating structure, the steel strand can be rotated while the tensile strength is tested, thereby simulating the stress state of the steel strand in actual use, thereby more accurately evaluating its strength and performance, and providing a more reliable basis for actual use.

[0018] 2. The utility model provides a steel strand tensile strength testing device. Through the function of the protective structure, the steel strand can be isolated inside the shell when the strength of the steel strand is tested, thereby preventing metal debris splashed out when the steel strand breaks from accidentally injuring surrounding operators or damaging surrounding equipment, thereby ensuring the safety of operators and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the mounting base structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the push rod structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the collection frame structure of the present utility model;

[0023] Figure 5 This is a schematic diagram of the protective plate structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the inclined plane block structure of the present utility model.

[0025] In the figure: 1. Shell; 2. Tensile rotating structure; 21. Guide rod; 22. First threaded rod; 23. Transmission assembly; 24. First motor; 25. Mounting seat; 26. Rectangular block; 27. Clamp; 28. Anti-sliding block; 29. ​​Magnetic push block; 210. Push rod; 211. Bracket; 212. Second motor; 213. Second threaded rod; 214. Disc; 215. Worm gear; 216. Worm; 217. Third motor; 218. Mounting plate; 3. Protective structure; 31. U-shaped frame; 32. Collection frame; 33. Handle; 34. First elastic telescopic rod; 35. Protective plate; 36. Block; 37. Second elastic telescopic rod; 38. Inclined block. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 As shown, a steel strand tensile strength detection device comprises a shell 1 , a tensile rotating structure 2 is fixedly mounted on the right end of the shell 1 , and a protective structure 3 is fixedly mounted on the top of the shell 1 .

[0028] By providing the tensile rotating structure 2, the steel strand can be twisted when the tensile strength of the steel strand is tested, thereby making the test more comprehensive.

[0029] like Figure 2 and Figure 3 As shown, the stretching rotation structure 2 includes four guide rods 21, and the left and right sides of the four guide rods 21 are rotatably connected to the four corners on the left and right sides of the shell 1. The outer walls of the four guide rods 21 are respectively slidably connected to the four corners of the mounting seat 25, and the upper and lower positions in the middle of the mounting seat 25 are threadedly connected with the first threaded rods 22. The right ends of the two first threaded rods 22 extend out of the right end of the shell 1, and the right ends of the two first threaded rods 22 are fixedly installed with a transmission assembly 23. The transmission assembly 23 includes a protective shell, a toothed belt and two transmission gears. The two transmission gears and the toothed belts are both located inside the protective shell. The outer walls of the two transmission gears are meshed with the inner walls of the toothed belts. The left ends of the two transmission gears are fixedly connected to the right ends of the two first threaded rods 22. The right end of the protective shell is fixedly installed with a first motor 24, and the output end of the first motor 24 is fixedly connected to the right end of the transmission gear located below.

[0030] By providing the first threaded rod 22, the position of the mounting seat 25 can be adjusted, thereby achieving the effect of performing a tensile strength test on the steel strand.

[0031] like Figure 3As shown, the middle part of the mounting seat 25 is rotatably connected to a disc 214, the left end of the disc 214 and the left side inside the shell 1 are fixedly connected to a rectangular block 26, the front and rear positions inside the two rectangular blocks 26 are slidably connected to magnetic push blocks 29, the opposite surfaces of the magnetic push blocks 29 at the front and rear positions are fixedly connected to splints 27, and the opposite surfaces of the splints 27 at the front and rear positions are fixedly connected to anti-sliding blocks 28.

[0032] By providing the clamping plate 27, both ends of the steel strand can be clamped, thereby ensuring the stability of the strength test, and the anti-sliding block 28 can further improve the clamping effect.

[0033] like Figure 3 As shown, the top ends of the two rectangular blocks 26 are fixedly connected to the bracket 211, and the top ends of the two brackets 211 are fixedly installed with the second motor 212. The output ends of the two second motors 212 extend to the bottom ends of the middle parts of the two brackets 211 respectively. The output ends of the two second motors 212 are fixedly connected to the second threaded rod 213. The bottom ends of the two second threaded rods 213 are respectively rotatably connected to the middle parts of the top ends of the two rectangular blocks 26. The outer walls of the two second threaded rods 213 are threadedly connected to the push rod 210. The front and rear positions of the bottoms of the two push rods 210 are respectively plugged into the front and rear positions of the top ends of the two rectangular blocks 26, and the front and rear ends of the bottoms of the two push rods 210 are respectively overlapped with the inclined ends of the four magnetic push blocks 29.

[0034] By providing the second threaded rod 213 , the position of the push rod 210 can be adjusted up and down, and the push rod 210 pushes the magnetic push block 29 to enable the clamping plate 27 to clamp the steel strand.

[0035] like Figure 3 As shown, the right end of the disc 214 is fixedly connected to a worm gear 215, and the front and rear positions of the top right side of the mounting seat 25 are fixedly connected to mounting plates 218. The opposite surface of the mounting plate 218 is rotatably connected to a worm 216, and the outer wall of the worm 216 is meshed with the outer wall of the worm gear 215. The front end of the mounting plate 218 in the front is fixedly connected to a third motor 217, and the output end of the third motor 217 extends to the rear end of the mounting plate 218 in the front, and the output end of the third motor 217 is fixedly connected to the front end of the worm 216.

[0036] By providing the worm wheel 215 , the worm 216 can drive the worm wheel 215 to rotate under the driving action of the third motor 217 , and further drive the disc 214 to rotate, thereby achieving the effect of twisting the steel strand.

[0037] like Figure 4 and Figure 5As shown, the protective structure 3 includes a U-shaped frame 31, the rear end of the U-shaped frame 31 is fixedly connected to the front end of the shell 1, and the left and right positions inside the U-shaped frame 31 are fixedly connected to the first elastic telescopic rods 34, and the output ends of the two first elastic telescopic rods 34 are fixedly connected to the protective plates 35.

[0038] By providing the protection plate 35 , the steel strand can be isolated when undergoing strength testing, thereby protecting the operator and other equipment from accidental breakage.

[0039] like Figure 5 As shown, a collecting frame 32 is clamped on the bottom of the interior of the shell 1 , and a handle 33 is fixedly connected to the middle of the front end of the collecting frame 32 .

[0040] By providing the collection frame 32 , the fragments flying out of the collapse can be collected, thereby reducing the difficulty and cost of subsequent cleaning.

[0041] like Figure 5 As shown, the left and right positions of the bottom end of the protective plate 35 are fixedly connected with a card block 36, the front ends of the two card blocks 36 are fixedly connected with a second elastic telescopic rod 37, the output ends of the two second elastic telescopic rods 37 are fixedly connected with a slope block 38, and the outer walls of the two slope blocks 38 are respectively plugged into the left and right positions of the front of the collection frame 32.

[0042] By providing the inclined plane block 38 , the inclined plane block 38 is inserted into the front portion of the collecting frame 32 to fix the collecting frame 32 and the protective plate 35 at the same time.

[0043] The working principle of the present invention is as follows: when in use, first insert the left end of the steel strand into the left rectangular block 26, then rotate the second threaded rod 213, thereby driving the push rod 210 to slide down, thereby squeezing the magnetic push block 29, thereby making the two clamping plates 27 clamp and fix to the left end of the steel strand, start the first motor 24, and drive the two first threaded rods 22 to rotate synchronously under the action of the transmission assembly 23, thereby sliding the mounting seat 25 to the left, thereby inserting the right end of the steel strand into the right rectangular block 26, and then use the same steps as above to fix the right end of the steel strand, thereafter, drive the first motor 24 in the reverse direction, thereby making the mounting seat 25 slide to the right, thereby stretching the steel strand, thereby achieving the effect of strength detection, during this process, start the second motor 212, and the third Motor 217, the third motor 217 drives the worm 216 to rotate, which in turn drives the worm wheel 215 to rotate, and then drives the disc 214 to rotate, so that the steel strand can be twisted to a certain extent while being stretched. While the steel strand is undergoing strength testing, the protective plate 35 is pressed downward, and the inclined surface of the inclined block 38 is squeezed by the front of the collection frame 32, and then shrinks to the inside of the card block 36. When the card block 36 is fully inserted into the front of the collection frame 32, the second elastic telescopic rod 37 pushes the inclined block 38 to insert into the front of the collection frame 32, and then lowers the protective plate 35 and fixes it in front of the shell 1. When the steel strand cracks or breaks, the protective plate 35 isolates the flying debris inside the shell 1, and the debris will eventually fall into the collection frame 32 and be collected uniformly.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A steel strand tensile strength detection device, comprising a housing (1), characterized in that: A stretching and rotating structure (2) is fixedly mounted on the right end of the shell (1), and a protective structure (3) is fixedly mounted on the top of the shell (1); The stretching rotation structure (2) comprises four guide rods (21), the left and right sides of the four guide rods (21) are rotatably connected to the four corners of the left and right sides of the shell (1), the outer walls of the four guide rods (21) are respectively slidably connected to the four corners of the mounting seat (25), the upper and lower positions of the middle part of the mounting seat (25) are threadedly connected with the first threaded rod (22), the right ends of the two first threaded rods (22) extend out of the right end of the shell (1), and the right ends of the two first threaded rods (22) are fixedly installed with a transmission assembly (23), the transmission assembly (23) comprises a protective shell, a toothed belt and two transmission gears, the two transmission gears and the toothed belt are both located inside the protective shell, the outer walls of the two transmission gears are meshed with the inner walls of the toothed belts, the left ends of the two transmission gears are fixedly connected to the right ends of the two first threaded rods (22), the right end of the protective shell is fixedly installed with a first motor (24), and the output end of the first motor (24) is fixedly connected to the right end of the transmission gear located below; The protective structure (3) comprises a U-shaped frame (31), the rear end of the U-shaped frame (31) is fixedly connected to the front end of the shell (1), the left and right positions inside the U-shaped frame (31) are fixedly connected to first elastic telescopic rods (34), the output ends of the two first elastic telescopic rods (34) are fixedly connected to protective plates (35), the bottom of the shell (1) is clamped with a collection frame (32), and the middle part of the front end of the collection frame (32) is fixedly connected to a handle (33).

2. A steel strand tensile strength detection device according to claim 1, characterized in that: A disc (214) is rotatably connected to the middle of the mounting seat (25); a rectangular block (26) is fixedly connected to the left end of the disc (214) and the left side of the inside of the shell (1); magnetic push blocks (29) are slidably connected to the front and rear positions of the two rectangular blocks (26); the opposite surfaces of the magnetic push blocks (29) at the front and rear positions are fixedly connected to clamps (27); and the opposite surfaces of the clamps (27) at the front and rear positions are fixedly connected to anti-sliding blocks (28).

3. A steel strand tensile strength detection device according to claim 2, characterized in that: The top ends of the two rectangular blocks (26) are fixedly connected to brackets (211), the top ends of the two brackets (211) are fixedly installed with second motors (212), the output ends of the two second motors (212) respectively extend to the bottom ends of the middle parts of the two brackets (211), the output ends of the two second motors (212) are fixedly connected to second threaded rods (213), the bottom ends of the two second threaded rods (213) are respectively rotatably connected to the middle parts of the top ends of the two rectangular blocks (26), the outer walls of the two second threaded rods (213) are threadedly connected to push rods (210), the front and rear positions of the bottoms of the two push rods (210) are respectively plugged into the front and rear positions of the top ends of the two rectangular blocks (26), and the front and rear ends of the bottoms of the two push rods (210) are respectively overlapped with the inclined ends of the four magnetic push blocks (29).

4. A steel strand tensile strength detection device according to claim 2, characterized in that: The right end of the disc (214) is fixedly connected to a worm wheel (215), the front and rear positions of the top right side of the mounting seat (25) are fixedly connected to mounting plates (218), the opposite surface of the mounting plate (218) is rotatably connected to a worm (216), the outer wall of the worm (216) is meshingly connected to the outer wall of the worm wheel (215), the front end of the mounting plate (218) located in the front is fixedly connected to a third motor (217), the output end of the third motor (217) extends to the rear end of the mounting plate (218) in the front, and the output end of the third motor (217) is fixedly connected to the front end of the worm (216).

5. The steel strand tensile strength detection device according to claim 1, characterized in that: The left and right positions of the bottom end of the protection plate (35) are fixedly connected with a clamping block (36), the front ends of the two clamping blocks (36) are fixedly connected with a second elastic telescopic rod (37), the output ends of the two second elastic telescopic rods (37) are fixedly connected with a slope block (38), and the outer walls of the two slope blocks (38) are respectively plugged into the left and right positions of the front part of the collection frame (32).

Images