Shear deformation detection device for steel member

Abstract

The utility model discloses a steel member shearing deformation detection device, which relates to the field of engineering detection and comprises a casing, a support fixed on the top of the casing, a shearing detection mechanism arranged on the support, a lower shearing knife fixed on the top of the casing and positioned below the shearing detection mechanism. And two clamping mechanisms which are symmetrically arranged left and right are arranged on the two sides of the lower shear knife, each clamping mechanism comprises a fixing base, the fixing bases are fixed to the top of the machine shell, and two movable plates which are symmetrically arranged front and back are slidably connected into the fixing bases in the front-back direction. The device has the beneficial effects that during detection, a lifting rod is driven by a shearing detection mechanism to move downwards, so that a guide frame drives a T-shaped rod to move backwards, two movable plates are close to each other through transmission of a gear and a rack, and a steel member is clamped by a clamping plate, so that only the steel member needs to be placed on a fixed seat; in the detection process, the steel member can be automatically fixed, manual operation is not needed for fixation, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing, and in particular to a device for detecting shear deformation of steel components. Background Technology

[0002] Steel components refer to composite steel structural components made of steel plates, angle steel, channel steel, I-beams, and reinforcing bars, which are connected by connectors and can bear and transmit loads. Steel components are widely used in engineering construction and other fields. To ensure the construction strength of the project, steel components need to be tested for performance during use, including testing for their resistance to shear deformation.

[0003] For example, patent document CN219265971U discloses a steel component shear deformation detection device. When clamping the steel component, firstly, a wheel is rotated, causing the second bidirectional screw to move the placement plates on both sides, initially adjusting the distance between the two placement plates to a length suitable for placing the steel component. The two ends of the steel component are then placed on the placement plates. If the steel component is thick, the internal threaded cylinder is rotated, causing the upper baffle to move upwards along the guide rod and lifting screw. The steel component is then placed on the placement plate again. At this point, the wheel is further rotated to ensure both ends of the steel component are fully positioned on the placement plate. Then, the control disc is used to cause the first bidirectional screw to drive the clamping plate to clamp the steel component on the placement plate. The steel component is then immobilized by the clamping plate. Finally, the clamping screw is rotated so that its bottom abuts against the upper surface of the steel component, thus fixing both ends of the steel component. The above device has a relatively cumbersome process for fixing the steel component, with many steps, low efficiency in the assembly and disassembly process, and is not convenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a steel component shear deformation detection device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A steel component shear deformation detection device includes a housing, a bracket fixed to the top of the housing, a shear detection mechanism mounted on the bracket, a lower shearing blade fixed to the top of the housing and located below the shear detection mechanism, and two clamping mechanisms symmetrically arranged on both sides of the lower shearing blade. Each clamping mechanism includes a fixed base fixed to the top of the housing, and two symmetrically arranged movable plates slidably connected within the fixed base in a front-to-back direction. Each movable plate is threaded with a lead screw, and a clamping plate is rotatably connected to the adjacent ends of the two lead screws. The clamping plates are slidably connected to the top of the fixed base, and the lower end of the fixed base extends into the housing. A transmission mechanism for moving the two movable plates is provided inside the housing. Two transmission mechanisms are provided, each corresponding to one clamping mechanism. A push-pull mechanism for providing power to the transmission mechanisms is also provided inside the housing.

[0007] Preferably, the transmission mechanism includes two racks, with a gear meshing between the two racks. A rotating shaft is fixedly connected inside the gear, and the rotating shaft is rotatably connected to the bottom inner wall of the housing. The rack near the center of the housing is fixedly connected to the front movable plate, and the other rack is fixedly connected to the rear movable plate.

[0008] Preferably, the push-pull mechanism includes a guide frame located between two transmission mechanisms. A T-shaped rod is fixedly connected to the front side of the guide frame. The T-shaped rod is fixedly connected to a rack near the center of the housing. A lifting rod is slidably connected to the top wall of the housing in the vertical direction. A pin is fixed to the bottom end of the lifting rod and is slidably engaged in the guide frame. A lifting plate is fixedly connected to the top of the lifting rod. The front end of the lifting plate is fixedly connected to the shearing detection mechanism, and the rear end of the lifting plate is slidably connected to the bracket.

[0009] Preferably, the guide frame includes an inclined section and a vertical section, the inclined section is located at the top of the vertical section, and the inclined direction of the inclined section is from the upper rear side to the lower front side.

[0010] Preferably, the shearing detection mechanism includes a hydraulic cylinder, which is fixed to the top of the bracket. A mounting block is fixed to the output end of the hydraulic cylinder, a pressure sensor is fixed to the bottom of the mounting block, and an upper shearing blade is fixed to the bottom of the pressure sensor.

[0011] Preferably, a scale is fixed to one side of the fixed base, and a pointer is fixed to the side of the clamp plate near the scale, with the pointer pointing to the scale.

[0012] The beneficial effects are as follows: During testing, the shearing testing mechanism drives the lifting rod to move downward, causing the guide frame to move the T-shaped rod backward. The gear and rack transmission brings the two movable plates closer together, thereby clamping the steel component. Therefore, the steel component only needs to be placed on the fixed seat, and it can be automatically fixed during the testing process without manual operation, making it more convenient to use. By rotating the screw to adjust the initial position of the front and rear clamping plates, it can adapt to steel components of different sizes, thus broadening its applicability.

[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a perspective view of a steel component shear deformation detection device according to the present invention;

[0016] Figure 2 This is a front view of the steel component shear deformation detection device described in this utility model;

[0017] Figure 3 This is a left view of the steel component shear deformation detection device described in this utility model;

[0018] Figure 4 This is a perspective view of the clamping mechanism and transmission mechanism of the steel component shear deformation detection device described in this utility model;

[0019] Figure 5 This is a left view of the push-pull mechanism of the steel component shear deformation detection device described in this utility model;

[0020] Figure 6 This is a left view of the guide frame of the steel component shear deformation detection device described in this utility model;

[0021] Figure 7 This is a top view showing the positional relationship between the push-pull mechanism and the transmission mechanism of the steel component shear deformation detection device described in this utility model;

[0022] Figure 8 This utility model describes a steel component shear deformation detection device. Figure 4 Enlarged view of the structure at point A in the middle.

[0023] The reference numerals in the attached drawings are explained as follows: 1. Housing; 101. Bracket; 102. Lower shearing blade; 2. Shearing detection mechanism; 201. Hydraulic cylinder; 202. Mounting block; 203. Pressure sensor; 204. Upper shearing blade; 3. Clamping mechanism; 301. Fixed base; 302. Movable plate; 303. Lead screw; 304. Clamping plate; 4. Transmission mechanism; 401. Rack; 402. Gear; 403. Rotating shaft; 5. Push-pull mechanism; 501. Guide frame; 5011. Inclined section; 5012. Vertical section; 502. T-shaped rod; 503. Lifting rod; 504. Pin; 505. Lifting plate; 6. Scale; 7. Pointer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-8 As shown, a steel component shear deformation detection device includes a housing 1, a bracket 101 welded to the top of the housing 1, a shear detection mechanism 2 mounted on the bracket 101, and a lower shear blade 102 fixed to the top of the housing 1, located below the shear detection mechanism 2. The shear detection mechanism 2 and the lower shear blade 102 apply shear force to the steel component, while the shear detection mechanism 2 performs detection work. Two symmetrically arranged clamping mechanisms 3 are provided on both sides of the lower shear blade 102 to clamp the steel component. Each clamping mechanism 3 includes a fixed base 301, which is fixed to the top of the housing 1 by screws. The fixed base 301 extends along the front-back direction... The sliding connection has two symmetrically arranged movable plates 302. The movable plates 302 are internally threaded with lead screws 303. The two lead screws 303 are rotatably connected to the ends of the two lead screws 303 that are close to each other. The other end of the lead screws 303 is fixedly connected to a handle, which facilitates manual rotation of the lead screws 303. The clamping plates 304 are slidably connected to the top of the fixed base 301. The lower end of the fixed base 301 extends into the inside of the housing 1. The housing 1 is provided with a transmission mechanism 4 for moving the two movable plates 302. There are two transmission mechanisms 4, each corresponding to a clamping mechanism 3. The housing 1 is provided with a push-pull mechanism 5 for providing power to the transmission mechanisms 4.

[0028] The transmission mechanism 4 includes two racks 401, with a gear 402 meshing between them. A rotating shaft 403 is fixedly connected inside the gear 402. The rotating shaft 403 is rotatably connected to the bottom inner wall of the housing 1. The rack 401 on the side closest to the center of the housing 1 is fixedly connected to the front movable plate 302. When the rack 401 moves backward, it will drive the front movable plate 302 to move backward. At this time, the rack 401 drives the gear 402 to rotate, and the gear 402 drives the other rack 401 to move forward. The other rack 401 is fixedly connected to the rear movable plate 302, so that the two movable plates 302 move closer to each other and clamp the steel component.

[0029] The push-pull mechanism 5 includes a guide frame 501, which is located between two transmission mechanisms 4. A T-shaped rod 502 is welded to the front side of the guide frame 501. The T-shaped rod 502 is fixedly connected to a rack 401 on the side near the center of the housing 1. A lifting rod 503 is slidably connected to the top wall of the housing 1 in the up-down direction. A pin 504 is fixed to the bottom end of the lifting rod 503. The pin 504 is slidably engaged in the guide frame 501. When the lifting rod 503 drives the pin 504 to move up and down, the pin 504 will drive the guide frame 501 to move back and forth. A lifting plate 505 is fixedly connected to the top of the lifting rod 503. The front end of the lifting plate 505 is fixedly connected to the shearing detection mechanism 2, and the rear end of the lifting plate 505 is slidably connected to the bracket 101.

[0030] The guide frame 501 includes an inclined section 5011 and a vertical section 5012. The inclined section 5011 is located at the top of the vertical section 5012. The inclined direction of the inclined section 5011 is from the upper rear side to the lower front side. When the pin 504 moves downward from the top of the inclined section 5011, the pin 504 drives the guide frame 501 to move backward. Conversely, when the pin 504 moves downward to the top of the inclined section 5011, the pin 504 drives the guide frame 501 to move forward. When the pin 504 moves within the vertical section 5012, the guide frame 501 remains stationary.

[0031] The shearing detection mechanism 2 includes a hydraulic cylinder 201, which is fixed to the top of the bracket 101. A mounting block 202 is fixed to the output end of the hydraulic cylinder 201. A lifting plate 505 is fixedly connected to the rear side of the mounting block 202. A pressure sensor 203 is fixed to the bottom of the mounting block 202. An upper shearing blade 204 is fixed to the bottom of the pressure sensor 203.

[0032] A scale 6 is fixed on one side of the fixed base 301, and a pointer 7 is fixed on the side of the clamp 304 near the scale 6. The pointer 7 points to the scale 6, and the initial distance between the two clamps 304 can be easily adjusted by the scale 6 and the pointer 7.

[0033] Working principle: In use, the steel component is placed on two fixed seats 301. The hydraulic cylinder 201 drives the mounting block 202 to move downward. The mounting block 202 drives the upper shearing blade 204 and the lifting rod 503 to move downward. The lifting rod 503 drives the pin 504 to move downward. The pin 504 moves downward from the top of the inclined section 5011. When the pin 504 moves within the inclined section 5011, it drives the guide frame 501 to move backward. The guide frame 501 drives the T-shaped rod 502 to move backward. The T-shaped rod 502 drives the rack 401 near the center of the housing 1 to move backward. The rack 401 drives the front movable plate 302 to move backward. Simultaneously, the rack 401 drives the gear 402 to rotate, and the gear 402 drives another rack 401 to move forward and move the rear movable plate 302 forward, so that the two movable plates 302 move closer to each other to clamp the steel component, thereby realizing automatic clamping of the steel component without manual operation, making it more convenient to use. At this time, the pin 504 moves into the vertical section 5012, and the upper shearing blade 204 is not in contact with the steel component. The mounting block 202 continues to move downward, and the pin 504 moves downward in the vertical section 5012 until the upper shearing blade 204 contacts the steel component. The pressure value is detected by the pressure sensor 203.

[0034] Since the distance that the two movable plates 302 move each time is constant, that is, the distance that the movable plates 302 drive the lead screw 303 and the clamping plate 304 to move is constant, for steel components of different sizes, it is necessary to adjust the initial distance between the two clamping plates 304. At this time, rotate the lead screw 303. Since the lead screw 303 is threadedly connected to the movable plates 302, the lead screw 303 will drive the clamping plate 304 to move. The clamping plate 304 will drive the pointer 7 to move. The distance adjusted by the clamping plate 304 can be accurately and conveniently determined using the scale 6.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A steel component shear deformation detection device, comprising a housing (1), a bracket (101) fixed to the top of the housing (1), a shear detection mechanism (2) disposed on the bracket (101), and a lower shear blade (102) fixed to the top of the housing (1), the lower shear blade (102) being located below the shear detection mechanism (2), characterized in that: Two symmetrically arranged clamping mechanisms (3) are provided on both sides of the lower shearing blade (102). Each clamping mechanism (3) includes a fixed base (301) fixed to the top of the housing (1). Two symmetrically arranged movable plates (302) are slidably connected inside the fixed base (301) along the front-back direction. A lead screw (303) is threaded into the movable plate (302). A clamping plate (304) is rotatably connected to the two lead screws (303) at their closest ends. The clamping plate (304) is slidably connected to the top of the fixed base (301). The lower end of the fixed base (301) extends into the interior of the housing (1). The housing (1) is provided with a transmission mechanism (4) for moving the two movable plates (302) in the front and rear. There are two transmission mechanisms (4), each of which corresponds to one clamping mechanism (3). The housing (1) is provided with a push-pull mechanism (5) for providing power to the transmission mechanism (4).

2. The steel component shear deformation detection device according to claim 1, characterized in that: The transmission mechanism (4) includes two racks (401), and a gear (402) meshes between the two racks (401). A rotating shaft (403) is fixedly connected inside the gear (402). The rotating shaft (403) is rotatably connected to the bottom inner wall of the housing (1). The rack (401) near the center of the housing (1) is fixedly connected to the front movable plate (302), and the other rack (401) is fixedly connected to the rear movable plate (302).

3. The steel component shear deformation detection device according to claim 2, characterized in that: The push-pull mechanism (5) includes a guide frame (501) located between the two transmission mechanisms (4). A T-shaped rod (502) is fixedly connected to the front side of the guide frame (501). The T-shaped rod (502) is fixedly connected to the rack (401) on the side near the center of the housing (1). A lifting rod (503) is slidably connected to the top wall of the housing (1) in the up-down direction. A pin (504) is fixed to the bottom end of the lifting rod (503). The pin (504) is slidably fitted inside the guide frame (501). A lifting plate (505) is fixedly connected to the top of the lifting rod (503). The front end of the lifting plate (505) is fixedly connected to the shearing detection mechanism (2), and the rear end of the lifting plate (505) is slidably connected to the bracket (101).

4. The steel component shear deformation detection device according to claim 3, characterized in that: The guide frame (501) includes an inclined section (5011) and a vertical section (5012). The inclined section (5011) is located at the top of the vertical section (5012), and the inclined direction of the inclined section (5011) is from the upper rear side to the lower front side.

5. The steel component shear deformation detection device according to claim 1, characterized in that: The shearing detection mechanism (2) includes a hydraulic cylinder (201), which is fixed on the top of the bracket (101). A mounting block (202) is fixed to the output end of the hydraulic cylinder (201), and a pressure sensor (203) is fixed to the bottom of the mounting block (202). An upper shearing blade (204) is fixed to the bottom of the pressure sensor (203).

6. The steel component shear deformation detection device according to claim 1, characterized in that: A scale (6) is fixed on one side of the fixed base (301), and a pointer (7) is fixed on the side of the clamp (304) near the scale (6), and the pointer (7) points to the scale (6).

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