House steel structure connection strength detection device

Abstract

The utility model discloses a device for detecting the connection strength of a house steel structure, and relates to the technical field of mechanical detection. Comprising a testing machine table, a control panel is embedded in the front side of the testing machine table, a lower four-claw self-centering chuck and a supporting frame are fixedly installed on the table top of the testing machine table, a hydraulic cylinder is installed on the top of the supporting frame, a linear guide rail is installed on the supporting frame, and an upper pressing plate is installed on a sliding block of the linear guide rail. According to the house steel structure connection strength detection device, four-claw self-centering chucks are installed on a testing machine table and a lower pressing plate, the four-claw self-centering chucks and the lower pressing plate are kept on the same axis, one end of a steel structure part is fixed to the four-claw self-centering chucks of the testing machine table, then the four-claw self-centering chucks on the lower pressing plate are driven by a control hydraulic cylinder to move downwards, and the four-claw self-centering chucks on the lower pressing plate move downwards. The steel structure can be quickly and stably fixed by clamping the other end of the steel structural member, so that the steel structural member is prevented from deviating in the detection process, and the reliability of a detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical detection, in particular to a device for detecting the connection strength of a steel structure of a house. Background Art

[0002] Building steel structure is a commonly used structure in the construction process. Most of the building steel structures bear loads, so the strength requirements of the building steel structure are very high. After the production of the building steel structure is completed, the strength of the building steel structure needs to be tested to ensure that the strength of the building steel structure meets the requirements of use. Therefore, corresponding strength detection equipment is required for detection.

[0003] When conducting a compressive strength test on a steel structure, the steel structure needs to be directly below the liquid pressure plate to facilitate pressure testing of the steel structure. The compressive strength testing device for steel structures in the prior art has poor positioning stability for the steel structure, and the steel structure may shift during squeezing, thereby affecting the test results. Utility Model Content

[0004] The utility model provides a building steel structure connection strength detection device to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building steel structure connection strength detection device, comprising a testing machine, a control panel embedded in the front side of the testing machine, a lower four-jaw self-centering chuck and a support frame fixedly installed on the table of the testing machine, and a hydraulic cylinder is installed on the top of the support frame, a linear guide is installed on the support frame, and an upper pressure plate is installed on the slider of the linear guide, the output end of the hydraulic cylinder is connected to the upper pressure plate, a compression spring is installed at the bottom of the upper pressure plate, and the lower pressure plate is elastically connected to the compression spring, a strain sensor is installed on the upper pressure plate, and the strain sensor is electrically connected to the control panel through a wire, an upper four-jaw self-centering chuck is installed at the bottom of the upper pressure plate, and the upper four-jaw self-centering chuck and the lower four-jaw self-centering chuck are located on the same axis.

[0006] Furthermore, a power port is installed on the rear side of the test machine, and the power port is electrically connected to the control panel through a wire.

[0007] Furthermore, a hydraulic solenoid valve is installed on the rear side of the test machine, and the hydraulic solenoid valve is electrically connected to the control panel through a wire.

[0008] Furthermore, the outlet end of the hydraulic solenoid valve is connected to the hydraulic cylinder through a pipeline, and the inlet end of the hydraulic solenoid valve is externally connected to a hydraulic pump station through a pipeline.

[0009] Furthermore, guide sleeves are installed at both ends of the upper pressing plate, guide rods are installed at both ends of the lower pressing plate, and the guide rods are movably sleeved with the guide sleeves.

[0010] Furthermore, the compression spring is sleeved on the guide rod, and the strain sensor is located between the lower pressing plate and the upper pressing plate.

[0011] Compared with the prior art, the utility model provides a building steel structure connection strength detection device, which has the following beneficial effects:

[0012] The building steel structure connection strength testing device is equipped with four-jaw self-centering chucks on both the test machine and the lower pressure plate, and the two are kept on the same axis. One end of the steel structure is fixed on the four-jaw self-centering chuck of the test machine, and then the four-jaw self-centering chuck on the lower pressure plate is driven downward by controlling the hydraulic cylinder to clamp the other end of the steel structure. The steel structure can be fixed quickly and stably to prevent the steel structure from shifting during the testing process, thereby ensuring the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a side view of the utility model;

[0015] Figure 3 It is a partial enlarged view of the utility model.

[0016] In the figure: 1. Test machine; 2. Control panel; 3. Lower four-jaw self-centering chuck; 4. Support frame; 5. Hydraulic cylinder; 6. Linear guide; 7. Upper pressure plate; 8. Compression spring; 9. Lower pressure plate; 10. Strain sensor; 11. Upper four-jaw self-centering chuck; 12. Power port; 13. Hydraulic solenoid valve; 14. Guide sleeve; 15. Guide rod. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-Figure 3The utility model discloses a building steel structure connection strength detection device, including a test machine 1, a control panel 2 is embedded on the front side of the test machine 1, a lower four-jaw self-centering chuck 3 and a support frame 4 are fixedly installed on the table of the test machine 1, and a hydraulic cylinder 5 is installed on the top of the support frame 4, a linear guide 6 is installed on the support frame 4, and an upper pressure plate 7 is installed on the slider of the linear guide 6, the output end of the hydraulic cylinder 5 is connected to the upper pressure plate 7, a compression spring 8 is installed at the bottom of the upper pressure plate 7, and a lower pressure plate 9 is elastically connected to the compression spring 8, a strain sensor 10 is installed on the upper pressure plate 7, and the strain sensor 10 is connected to the upper pressure plate 7 through the compression spring 8. It is electrically connected to the control panel 2 through a conducting wire, an upper four-jaw self-centering chuck 11 is installed at the bottom of the upper pressure plate 7, and the upper four-jaw self-centering chuck 11 and the lower four-jaw self-centering chuck 3 are located on the same axis, and four-jaw self-centering chucks are installed on both the test machine 1 and the lower pressure plate 9, and the two are kept on the same axis, one end of the steel structure is fixed on the four-jaw self-centering chuck of the test machine 1, and then the four-jaw self-centering chuck on the lower pressure plate 9 is driven to move downward by controlling the hydraulic cylinder 5 so that it is clamped on the other end of the steel structure, so that the steel structure can be quickly and stably fixed, preventing the steel structure from shifting during the detection process, and ensuring the reliability of the detection results.

[0019] Specifically, a power port 12 is installed at the rear side of the test machine 1 , and the power port 12 is electrically connected to the control panel 2 through a wire.

[0020] In this embodiment, the power port 12 is used to connect to a power source to supply power to the device.

[0021] Specifically, a hydraulic solenoid valve 13 is installed at the rear side of the test machine 1 , and the hydraulic solenoid valve 13 is electrically connected to the control panel 2 through a wire.

[0022] In this embodiment, the hydraulic solenoid valve 13 is a basic automation component used to control fluid, and is a type of directional control valve used to control the on / off of oil flow or change the direction of oil flow.

[0023] Specifically, the outlet end of the hydraulic solenoid valve 13 is connected to the hydraulic cylinder 5 through a pipeline, and the inlet end of the hydraulic solenoid valve 13 is externally connected to a hydraulic pump station through a pipeline.

[0024] In this embodiment, the hydraulic pump station provides power for the hydraulic system, and through the action of the hydraulic solenoid valve 13, provides power for the hydraulic cylinder 5.

[0025] Specifically, guide sleeves 14 are installed at both ends of the upper pressing plate 7 , and guide rods 15 are installed at both ends of the lower pressing plate 9 , and the guide rods 15 are movably sleeved with the guide sleeves 14 .

[0026] In this embodiment, the guide rod 15 and the guide sleeve 14 are matched in an axial positioning manner, which is mainly used to ensure that the relative positions of the parts in the mechanical device do not change.

[0027] Specifically, the compression spring 8 is sleeved on the guide rod 15 , and the strain sensor 10 is located between the lower pressing plate 9 and the upper pressing plate 7 .

[0028] In this embodiment, the strain sensor 10 is a functional element that uses a metal elastomer to convert force into an electrical signal. It is generally composed of three parts: a resistance strain gauge, an elastomer, and a transmission circuit. It is a force-sensitive sensor that realizes the four conversion links of "force-strain-resistance-electrical signal change" through a Wheatstone bridge circuit composed of a resistance strain gauge installed on the sensitive surface of the elastomer under the stimulation of an external power supply.

[0029] When in use, a four-jaw self-centering chuck is installed on both the test machine 1 and the lower pressure plate 9, and the two are kept on the same axis. One end of the steel structure is fixed on the four-jaw self-centering chuck of the test machine 1, and then the four-jaw self-centering chuck on the lower pressure plate 9 is driven downward by controlling the hydraulic cylinder 5 so that it is clamped on the other end of the steel structure. The steel structure can be fixed quickly and stably to prevent the steel structure from shifting during the detection process, thereby ensuring the reliability of the detection results. After fixation, the compressive strength test of the steel structure is carried out by driving the hydraulic cylinder 5, and the strain sensor 10 is used for detection, and the signal is fed back to the control panel 2 to display the detection data in real time.

[0030] To sum up, in the building steel structure connection strength detection device, four-jaw self-centering chucks are installed on the test machine 1 and the lower pressure plate 9, and the two are kept on the same axis. One end of the steel structure is fixed on the four-jaw self-centering chuck of the test machine 1, and then the four-jaw self-centering chuck on the lower pressure plate 9 is driven downward by controlling the hydraulic cylinder 5 to clamp the other end of the steel structure. The steel structure can be fixed quickly and stably to prevent the steel structure from shifting during the detection process, thereby ensuring the reliability of the detection results.

[0031] 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 device for detecting the connection strength of a steel structure of a house, comprising a testing machine (1), characterized in that: A control panel (2) is embedded on the front side of the test machine (1); a lower four-jaw self-centering chuck (3) and a support frame (4) are fixedly installed on the table of the test machine (1), and a hydraulic cylinder (5) is installed on the top of the support frame (4); a linear guide rail (6) is installed on the support frame (4), and an upper pressure plate (7) is installed on the slider of the linear guide rail (6); the output end of the hydraulic cylinder (5) is connected to the upper pressure plate (7); a compression spring (8) is installed at the bottom of the upper pressure plate (7), and the lower pressure plate (9) is elastically connected to the compression spring (8); a strain sensor (10) is installed on the upper pressure plate (7), and the strain sensor (10) is electrically connected to the control panel (2) through a wire; an upper four-jaw self-centering chuck (11) is installed at the bottom of the upper pressure plate (7), and the upper four-jaw self-centering chuck (11) and the lower four-jaw self-centering chuck (3) are located on the same axis.

2. A building steel structure connection strength detection device according to claim 1, characterized in that: A power port (12) is installed on the rear side of the test machine (1), and the power port (12) is electrically connected to the control panel (2) via a wire.

3. A building steel structure connection strength detection device according to claim 1, characterized in that: A hydraulic solenoid valve (13) is installed on the rear side of the test machine (1), and the hydraulic solenoid valve (13) is electrically connected to the control panel (2) via a wire.

4. A building steel structure connection strength detection device according to claim 3, characterized in that: The outlet end of the hydraulic solenoid valve (13) is connected to the hydraulic cylinder (5) through a pipeline, and the inlet end of the hydraulic solenoid valve (13) is externally connected to a hydraulic pump station through a pipeline.

5. The device for detecting the connection strength of a steel structure of a house according to claim 1, characterized in that: Guide sleeves (14) are installed at both ends of the upper pressing plate (7), guide rods (15) are installed at both ends of the lower pressing plate (9), and the guide rods (15) are movably sleeved with the guide sleeves (14).

6. A building steel structure connection strength detection device according to claim 1, characterized in that: The compression spring (8) is sleeved on the guide rod (15), and the strain sensor (10) is located between the lower pressing plate (9) and the upper pressing plate (7).

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