Steel structure strength detection device

Abstract

The utility model discloses a steel structure strength detection device which comprises a detection platform, a supporting block is fixedly installed on one side of the upper face of the detection platform, a first hydraulic cylinder is fixedly installed on one side of the supporting block, a first bending head is fixedly installed at the output end of the first hydraulic cylinder, and a support is fixedly installed on the other side of the detection platform. A second hydraulic cylinder is fixedly connected to the lower portion of the support, a second bending head is fixedly installed at the lower end of the second hydraulic cylinder, a transverse touch pressure switch is arranged on one side of the support, a vertical touch pressure switch is arranged above the detection platform, dovetail sliding grooves are symmetrically formed in the upper face of the detection platform, and a second hydraulic cylinder is fixedly installed at the lower end of the dovetail sliding grooves. A dovetail sliding block is installed in the dovetail sliding groove in a sliding mode. The first hydraulic cylinder and the second hydraulic cylinder are vertically and transversely arranged, the first bending head and the second bending head can be driven to conduct transverse and vertical bending resistance detection on the steel structural part, and the steel structural part does not need to be moved additionally during multi-direction detection.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a steel structure strength detection device. Background Art

[0002] Strength testing of steel structures is an important part of testing the strength of steel structures. It is the key to ensuring the safety performance of steel structures. There are many methods for testing the strength of steel structures. The most commonly used ones are tensile test, compression test, bending test and impact test. The bending test can measure the bending strength, yield strength and fracture strength of steel, and requires the use of a bending measurement device.

[0003] For example, the Chinese patent publication number CN220455077U discloses a strength detection device for steel structure production, which includes a workbench, a telescopic cylinder is fixedly arranged on the top of the workbench, a bending head is fixedly arranged on the output shaft of the telescopic cylinder, a first slide groove is provided on the top of the workbench, the bottom of the bending head is slidably connected to the first slide groove, two bending rollers with the same structure and corresponding distribution are rotatably arranged on the top of the workbench, and the two bending rollers are respectively located on both sides of the first slide groove, and two second slide grooves with the same structure and corresponding distribution are provided on the top of the workbench, and the two second slide grooves are respectively located on both sides of the two bending wheels, and two limit rollers with the same structure and corresponding distribution are movably arranged in the two slide grooves. By setting the limit rollers, passing the steel structure body through the middle of the four limit rollers can replace the manual fixing method to fix the steel bars, thereby improving the processing accuracy.

[0004] Some problems were found when using the above-mentioned existing strength detection device for steel structure production. Taking the common I-beam as an example, there is an obvious difference in the bending resistance between the side and the front. When measuring the bending resistance of the I-beam, it is necessary to detect in multiple directions and the steel structure needs to be repeatedly clamped to adjust its direction. Utility Model Content

[0005] The purpose of the utility model is to provide a steel structure strength detection device to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel structure strength detection device, comprising a detection platform, a support block is fixedly installed on one side of the detection platform, a first hydraulic cylinder is fixedly installed on one side of the support block, a first bending head is fixedly installed on the output end of the first hydraulic cylinder, a bracket is fixedly installed on the other side of the detection platform, a second hydraulic cylinder is fixedly connected under the bracket, a second bending head is fixedly installed on the lower end of the second hydraulic cylinder, a horizontal touch-pressure switch is arranged on one side of the bracket, and a vertical touch-pressure switch is arranged above the detection platform.

[0007] Preferably, a dovetail slot is symmetrically provided on the upper surface of the detection platform, a dovetail slider is slidably installed in the dovetail slot, and an L-shaped bracket is fixedly connected to the dovetail slider.

[0008] Preferably, a through hole is provided in the bracket.

[0009] Preferably, a mounting frame is fixedly installed on the detection platform near the bracket, a threaded adjustment rod is internally threadedly installed on the mounting frame, and the lateral touch-pressure switch is fixedly installed on one end of the threaded adjustment rod.

[0010] Preferably, a knob is fixedly connected to the other end of the threaded adjustment rod.

[0011] Preferably, a threaded deep hole is opened on the detection platform, a threaded column is installed in the threaded deep hole, and the vertical touch-pressure switch is fixedly connected to the upper end of the threaded column.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By arranging the first hydraulic cylinder and the second hydraulic cylinder vertically and horizontally, the first bending head and the second bending head can be driven to perform bending resistance tests on the steel structure horizontally and vertically respectively. Compared with the existing device, there is no need to move the steel structure additionally during multi-directional testing.

[0014] 2. Through the horizontal touch pressure switch and the vertical touch pressure switch, during the bending resistance test of steel structures, if the steel structures are bent excessively, they will contact the horizontal touch pressure switch and the vertical touch pressure switch. At this time, the horizontal touch pressure switch and the vertical touch pressure switch will send a signal to stop the hydraulic cylinder from working, so as to avoid the steel structures from breaking and flying after excessive bending, which may cause injuries to the measurement personnel.

[0015] 3. The dovetail slider and the dovetail groove slide together to make the L-shaped bracket slide and install on the detection platform. Move the L-shaped bracket forward so that the steel structure can be staggered from the bracket, so that it can be placed on the L-shaped bracket from above, solving the problem that the steel structure is heavy and it is difficult to lift the steel structure onto the L-shaped bracket by machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the utility model for detecting the strength of a steel structure;

[0018] Figure 3 For the utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 For the utility model Figure 1Enlarged view of point B in the middle;

[0020] Figure 5 It is a schematic diagram of signal transmission of the utility model.

[0021] In the figure: 1. detection platform; 101. dovetail slide; 102. dovetail slider; 103. L-shaped bracket; 2. support block; 201. first hydraulic cylinder; 202. first bending head; 3. bracket; 301. second hydraulic cylinder; 302. second bending head; 303. through hole; 4. mounting frame; 401. threaded adjustment rod; 402. knob; 403. horizontal touch pressure switch; 5. threaded deep hole; 501. threaded column; 502. vertical touch pressure switch. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: a steel structure strength detection device, including a detection platform 1, a support block 2 is fixedly installed on one side of the detection platform 1, a first hydraulic cylinder 201 is fixedly installed on one side of the support block 2, a first bending head 202 is fixedly installed on the output end of the first hydraulic cylinder 201, a bracket 3 is fixedly installed on the other side of the detection platform 1, a second hydraulic cylinder 301 is fixedly connected under the bracket 3, a second bending head 302 is fixedly installed on the lower end of the second hydraulic cylinder 301, a horizontal touch pressure switch 403 is arranged on one side of the bracket 3, and a vertical touch pressure switch 502 is arranged above the detection platform 1.

[0024] In this embodiment, the first hydraulic cylinder 201 and the second hydraulic cylinder 301 are arranged vertically and horizontally, and after being started, they can respectively drive the first bending head 202 to push horizontally and the second bending head 302 to press downward. Figure 2As shown, the bending resistance of the front and side surfaces of the steel structure can be tested respectively when the steel structure is moved. At the same time, a transverse touch-pressure switch 403 is set on one side of the steel structure. When the first bending head 202 pushes the steel structure horizontally, the steel structure bends and contacts the transverse touch-pressure switch 403. The transverse touch-pressure switch 403 sends a signal to the control system (plc) to stop the first hydraulic cylinder 201 from continuing to start, thereby preventing the steel structure from being directly broken. The vertical touch-pressure switch 502 is set below the steel structure. When the second bending head 302 is started and pressed down, the steel structure will bend downward. After contacting the vertical touch-pressure switch 502, a signal is also sent to stop the second hydraulic cylinder 301 from working. This can effectively prevent the steel structure from being broken and then flying after excessive bending, thereby causing injuries to the measurement personnel.

[0025] Among them, in order to facilitate the lifting of steel structural parts to the L-shaped bracket 103, the present device is implemented by adopting the following technical scheme: a dovetail groove 101 is symmetrically opened on the detection platform 1, a dovetail slider 102 is slidably installed in the dovetail groove 101, an L-shaped bracket 103 is fixedly connected to the dovetail slider 102, and a through hole 303 is opened in the bracket 3.

[0026] The L-shaped bracket 103 is slidably installed on the detection platform 1 through the sliding cooperation of the dovetail slider 102 and the dovetail groove 101. When the steel structure is placed on the L-shaped bracket 103, the L-shaped bracket 103 is moved forward so that the steel structure can be staggered from the bracket 3, so that the L-shaped bracket 103 is suspended from above, which solves the problem that the steel structure is heavy and it is difficult to mechanically lift the steel structure onto the L-shaped bracket 103. The through hole 303 prevents the threaded adjustment rod 401 from interfering with the bracket 3.

[0027] Among them, in order to achieve the purpose of adjusting the position of the horizontal touch pressure switch 403 and the vertical touch pressure switch 502, the present device is implemented by the following technical scheme: a mounting frame 4 is fixedly installed on the detection platform 1 near the bracket 3, and a threaded adjustment rod 401 is installed on the inner thread of the mounting frame 4; the horizontal touch pressure switch 403 is fixedly installed on one end of the threaded adjustment rod 401, and a knob 402 is fixedly connected to the other end of the threaded adjustment rod 401; a threaded deep hole 5 is opened on the detection platform 1, and a threaded column 501 is installed on the inner thread of the threaded deep hole 5; the vertical touch pressure switch 502 is fixedly connected to the upper end of the threaded column 501.

[0028] The knob 402 can be used to drive the threaded adjustment rod 401 to rotate, and the rotation of the threaded adjustment rod 401 can drive the horizontal touch pressure switch 403 to move. Since some steel structures allow a certain deformation, the deformation gap can be reserved by adjusting the position of the horizontal touch pressure switch 403. The vertical touch pressure switch 502 can adjust its height by rotating the threaded column 501. Both the vertical touch pressure switch 502 and the horizontal touch pressure switch 403 are equipped with batteries and wireless transmitters, so there is no need to consider cable connections. A cabinet (not shown in the figure) is set on one side of the detection platform 1, and a PLC control system and a wireless signal receiving device are set inside the cabinet.

[0029] The working principle and use process of the utility model are as follows: when using, the device needs to be placed in a suitable position, and after the steel structure is placed on the L-shaped bracket 103, the first hydraulic cylinder 201 is started to drive the first bending head 202 to move, and the first bending head 202 will laterally squeeze the steel structure. Under the specified thrust, the steel structure is deformed or slightly deformed and is not released from the horizontal touch-pressure switch 403, which means that the lateral bending resistance of the steel structure meets the standard. Then, the second hydraulic cylinder 301 is started to drive the second bending head 302 to move downward, and the second bending head 302 will squeeze the steel structure from above. Under the specified downward pressure, the steel structure is deformed or slightly deformed and does not contact the vertical touch-pressure switch 502, which means that the vertical bending resistance of the steel structure meets the standard.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure strength detection device, comprising a detection platform (1), characterized in that: A support block (2) is fixedly mounted on one side of the detection platform (1), a first hydraulic cylinder (201) is fixedly mounted on one side of the support block (2), a first bending head (202) is fixedly mounted on the output end of the first hydraulic cylinder (201), a bracket (3) is fixedly mounted on the other side of the detection platform (1), a second hydraulic cylinder (301) is fixedly connected below the bracket (3), a second bending head (302) is fixedly mounted on the lower end of the second hydraulic cylinder (301), a horizontal touch pressure switch (403) is arranged on one side of the bracket (3), and a vertical touch pressure switch (502) is arranged above the detection platform (1).

2. A steel structure strength detection device according to claim 1, characterized in that: The detection platform (1) is symmetrically provided with dovetail slide grooves (101), a dovetail slider (102) is slidably installed in the dovetail slide groove (101), and an L-shaped bracket (103) is fixedly connected to the dovetail slider (102).

3. A steel structure strength detection device according to claim 1, characterized in that: A through hole (303) is provided in the bracket (3).

4. A steel structure strength detection device according to claim 1, characterized in that: A mounting frame (4) is fixedly mounted on the detection platform (1) near the bracket (3), a threaded adjustment rod (401) is internally threadedly mounted on the mounting frame (4), and the lateral touch-pressure switch (403) is fixedly mounted on one end of the threaded adjustment rod (401).

5. A steel structure strength detection device according to claim 4, characterized in that: The other end of the threaded adjustment rod (401) is fixedly connected with a knob (402).

6. A steel structure strength detection device according to claim 1, characterized in that: A threaded deep hole (5) is provided on the detection platform (1), a threaded column (501) is installed in the inner thread of the threaded deep hole (5), and the vertical touch pressure switch (502) is fixedly connected to the upper end of the threaded column (501).

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