Bridge support detection device

Abstract

The utility model discloses a bridge support detection device which comprises a base and a support on the upper portion of the base, a hydraulic cylinder is installed in the center of the upper portion of the support, a piston rod of the hydraulic cylinder is fixedly connected with an extrusion block on the lower portion of the support, and a guide rail is arranged on the upper portion of the base. A lifting assembly is arranged at the position, right opposite to the extrusion block, of the guide rail, and the feeding trolley can fall down to be tightly attached to the support through the lifting assembly so that the bridge support can be stably supported. And the guide rail directly faces the lifting assembly of the extrusion block, so that the feeding trolley falls to be tightly attached to the support to stably support the bridge support, feeding is easier through the feeding trolley, blocking and limiting of the extrusion block and the press support are avoided, and feeding safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of bridge bearing testing, specifically to a bridge bearing testing device. Background Technology

[0002] Plate rubber bearings are commonly used in the highway industry for bridge bearings. When testing the performance of these bearings, a pressure machine is used to measure their ultimate compressive strength. During the measurement, the rubber bearing is first moved by personnel and placed onto a support seat under the extrusion block of the pressure machine. After placement, the hydraulic cylinder of the pressure machine is operated to drive the extrusion block to compress the lower rubber bearing until it fails. By measuring the applied force before failure and the area of ​​the rubber bearing, the ultimate compressive strength of the rubber bearing can be calculated.

[0003] However, it is quite difficult for personnel to move the rubber bearings, and they are easily blocked by the compression blocks and press supports during the movement, causing uneven force on the personnel and making it easy for the rubber bearings to fall and cause injury. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a bridge bearing detection device.

[0005] This utility model is achieved through the following technical solution:

[0006] A bridge bearing testing device includes a base and an upper support. A hydraulic cylinder is installed in the center of the upper part of the support. The piston rod of the hydraulic cylinder is connected and fixed to the lower extrusion block. A guide rail is provided on the upper part of the base. A movable feeding trolley is provided on the upper part of the guide rail. A lifting component is provided on the guide rail opposite the extrusion block. The lifting component can make the feeding trolley fall and fit tightly against the support to achieve stable support for the bridge bearing.

[0007] Alternatively, the feeding trolley may include a support platform and two support rollers mounted on the lower sides.

[0008] Further optionally, the lifting assembly includes two corresponding storage slots on the guide rail, with sliders sliding up and down in the corresponding two storage slots. The bottom of the sliders is supported and fitted with the elliptical shaft, and the two ends of the elliptical shaft are rotatably connected to the ends of the corresponding storage slots. One end of the elliptical shaft is driven and connected to a drive motor mounted on the outside of the bracket.

[0009] Alternatively, when the elliptical axis is at its highest position, the top of the upper slider is set parallel to the guide rail, and when the elliptical axis is at its lowest position, the space created by the downward movement of the upper slider can completely accommodate the support roller.

[0010] Alternatively, limit blocks are provided on both sides of the slider, and the limit blocks are slidably connected to the grooves opened on the side of the storage slot.

[0011] Alternatively, the drive motor can be electrically connected to the control box.

[0012] Alternatively, the support rollers of the feeding trolley can be positioned directly opposite the extrusion block when the trolley is in the receiving slot.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: This utility model sets a feeding trolley that can move and place rubber supports on the guide rail of the press, and uses a lifting component that is directly opposite the extrusion block on the guide rail to make the feeding trolley fall and fit tightly with the support to achieve stable support for the bridge support. In this way, it is easier to feed materials through the feeding trolley, and it will not be blocked or restricted by the extrusion block and the press support, thus ensuring the safety of feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the practical guide rail and feeding trolley;

[0016] Figure 3 yes Figure 2 Enlarged view of a local structure in the diagram;

[0017] Figure 4 This is a schematic diagram of the structure of this practical slider;

[0018] In the diagram: 1. Base; 2. Bracket; 3. Hydraulic cylinder; 4. Extrusion block; 5. Guide rail; 6. Feeding trolley; 7. Support roller; 8. Storage slot; 9. Elliptical shaft; 10. Slide groove; 11. Slider; 11. Limit block; 12. Drive motor; 13. Control box. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0020] like Figure 1 As shown, a bridge bearing testing device includes a base 1 and a support 2 on top of it. A hydraulic cylinder 3 is installed in the center of the upper part of the support 2. The piston rod of the hydraulic cylinder 3 is connected and fixed to the extrusion block 4 at the bottom. A guide rail 5 is provided on the upper part of the base 1. A movable feeding trolley 6 is provided on the upper part of the guide rail 5. A lifting component is provided on the guide rail 5 directly opposite the extrusion block 4. The lifting component can make the feeding trolley 6 fall down and fit tightly against the support 2 to achieve stable support for the bridge bearing.

[0021] like Figure 2 As shown, the feeding trolley 6 includes a support platform and two support rollers 7 installed on both sides of the lower part.

[0022] like Figure 2 , 3As shown, the lifting assembly includes two corresponding storage slots 8 on the guide rail 5. A slider 11 is slidably installed in the two corresponding storage slots 8. The bottom of the slider 11 is supported and fitted with the elliptical axis 9. The two ends of the elliptical axis 9 are rotatably connected to the ends of the corresponding storage slots 8. One end of the elliptical axis 9 is driven and connected to a drive motor 12 installed on the outside of the bracket 2. The drive motor 12 is a stepper motor, which can precisely control the rotation angle, making it easy to control the height of the elliptical axis 9. In this way, by controlling the rotation of the major and minor axes of the elliptical axis 9, the upper slider 11 can slide up and down, thereby providing stable support and limiting for the feeding trolley 6.

[0023] like Figure 2 As shown, when the elliptical axis 9 is at its highest position, the top of the upper slider 11 is parallel to the guide rail 5. When the elliptical axis 9 is at its lowest position, the space created by the downward movement of the upper slider 11 can completely accommodate the support roller 7.

[0024] like Figure 4 As shown, limit blocks 111 are provided on both sides of the slider 11. The limit blocks 111 are slidably connected to the slide groove 10 opened on the side of the storage groove 8, so that the slider 11 will not detach from the storage groove 8 when it moves up and down.

[0025] like Figure 1 As shown, the drive motor 12 is electrically connected to the control box 13.

[0026] like Figure 1 As shown, when the support roller 7 of the feeding trolley 6 is in the receiving slot 8, it is positioned directly opposite the extrusion block 4.

[0027] The implementation principle of a bridge bearing detection device according to an embodiment of this application is as follows:

[0028] First, the personnel move the rubber support to the center of the upper part of the feeding trolley 6. After placing it, push the feeding trolley 6 to move it directly below the extrusion block 4 and make the support roller 7 support the upper part of the slider 11 corresponding to the guide rail 5. Then, operate the control box 13 to control the drive motor 12 of the lifting component to rotate the elliptical shaft 9 by 90 degrees. In this way, the contact surface between the slider 11 and the elliptical shaft 9 is at a lower position, and the slider 11 will fall along the receiving groove 8. After the slider 11 falls, the support roller 7 supported on it moves down along the receiving groove 8. After the support roller 7 moves down and is received, the support seat of the feeding trolley 6 body above it will fit tightly with the bracket 2 and the guide rail 5. In this way, when the extrusion block 4 is used to extrude the rubber support, the support roller 7 of the feeding trolley 6 will not be damaged by pressure, ensuring the integrity of the feeding trolley 6. Moreover, the feeding trolley 6 is also positioned by the receiving groove 8 so that the rubber support is in the center of the extrusion block 4, ensuring the uniformity of the force on the rubber support in the future.

[0029] After bonding, the hydraulic cylinder 3 drives the extrusion block 4 to extrude the rubber support. After the rubber support is crushed and the ultimate compressive strength is calculated, the extrusion block 4 is moved upward. Then, the lifting component is operated in reverse, causing the drive motor 12 to rotate 90 degrees in the opposite direction. The slider 11 is lifted up and bonded to the guide rail 5 through the highest position of the elliptical axis 9. After bonding, the support roller 7 of the feeding trolley 6 is level with the guide rail 5. The feeding trolley 6 is pushed out and moved to the outside of the extrusion block 4 to replace the rubber support to be tested, which greatly improves the testing efficiency.

[0030] 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bridge bearing testing device, comprising a base (1) and an upper support (2), wherein a hydraulic cylinder (3) is mounted at the center of the upper part of the support (2), and the piston rod of the hydraulic cylinder (3) is connected and fixed to a lower pressing block (4), characterized in that: The base (1) is provided with a guide rail (5) on the upper part, and a movable feeding trolley (6) is provided on the upper part of the guide rail (5). A lifting component is provided on the guide rail (5) facing the extrusion block (4). The lifting component can make the feeding trolley (6) fall and fit tightly with the bracket (2) to achieve stable support for the bridge support.

2. The bridge bearing testing device according to claim 1, characterized in that: The feeding trolley (6) includes a support platform and two support rollers (7) installed on both sides of the lower part.

3. The bridge bearing testing device according to claim 1, characterized in that: The lifting assembly includes two corresponding storage slots (8) on the guide rail (5). A slider (11) is slidably arranged in the two storage slots (8). The bottom of the slider (11) is supported and fitted with the elliptical axis (9). The two ends of the elliptical axis (9) are rotatably connected to the ends of the corresponding storage slots (8). One end of the elliptical axis (9) is driven and connected to a drive motor (12) installed on the outside of the bracket (2).

4. The bridge bearing testing device according to claim 3, characterized in that: When the elliptical axis (9) is at its highest position, the top of the upper slider (11) is parallel to the guide rail (5). When the elliptical axis (9) is at its lowest position, the space created by the downward movement of the upper slider (11) can completely accommodate the support roller (7).

5. A bridge bearing testing device according to claim 4, characterized in that: Limiting blocks (111) are provided on both sides of the slider (11), and the limiting blocks (111) are slidably connected to the sliding groove (10) on the side of the storage groove (8).

6. A bridge bearing testing device according to claim 3, characterized in that: The drive motor (12) is electrically connected to the control box (13).

7. The bridge bearing testing device according to claim 1, characterized in that: When the support roller (7) of the feeding trolley (6) is in the receiving groove (8), it is positioned directly opposite the extrusion block (4).

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