Bridge bearing capacity nondestructive testing device

Abstract

The utility model discloses bridge bearing capacity nondestructive testing device belongs to bridge bearing capacity detection technical field, and its technical key points include clamping subassembly, exciter subassembly, limiting component and hoist subassembly. The utility model, when the bearing capacity of bridge is detected, in order to avoid damaging bridge during detection, therefore can first place the piece and connect on bridge guardrail, at this time through hoist subassembly can move installation spare to bridge side end, and through the clamping of two clamping plates, can make installation spare can stably set up in bridge side end, at this time through limiting component can be fixed to the position of two clamping plates, thereby avoid installation spare to fall off, after can through single heavy vehicle and travel at different speeds and inspire bridge vibration, and through exciter subassembly vibration data collection, detection, thereby can detect the bearing capacity of bridge.

Description

Technical Field

[0001] This utility model belongs to the field of bridge load-bearing capacity testing technology, specifically relating to a non-destructive testing device for bridge load-bearing capacity. Background Technology

[0002] The key safety indicator for measuring the maximum service load that a bridge structure can withstand is the bending variable of the structure or component after it has been formed as a whole. As time goes on, the bending degree of the bridge at each stage becomes a comprehensive measure of the bridge's load-bearing capacity. At this point, a non-destructive testing device for bridge load-bearing capacity is needed to test the bridge's load-bearing capacity.

[0003] In existing technologies, when testing the load-bearing capacity of bridges, a vibrator can be fixedly installed on the bridge deck. Then, a single heavy vehicle is driven at different speeds (such as constant speed, braking, and bouncing) to stimulate bridge vibration, simulating the dynamic response under actual load, thus replacing the traditional static load test. However, in existing technologies, the vibrator is usually fixed to the bridge deck with bolts, which can damage the bridge deck due to the pre-installed bolts. Therefore, we propose a non-destructive testing device for bridge load-bearing capacity to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a non-destructive testing device for bridge load-bearing capacity, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A non-destructive testing device for bridge load-bearing capacity includes a clamping assembly, a vibrator assembly, a limit assembly, and a hoisting assembly.

[0007] The clamping assembly includes a mounting component with a movable groove. A gear A and a rack A are disposed in the movable groove and mesh with each other. A clamping plate is disposed at the end of the rack A and is disposed in the movable groove. There are two racks A and two clamping plates, which are symmetrically arranged. An A motor A is disposed in the movable groove, and the output end of the A motor A is connected to the gear A.

[0008] Preferably, the vibrator assembly includes a base, a vibrator body, and connecting shafts. The base is disposed on the mounting component, and there are two connecting shafts, both of which are disposed on the base. The vibrator body is disposed between the two connecting shafts.

[0009] Preferably, the limiting component includes a hollow part, an A-type connector, and a B-type connector. The hollow part and the A-type connector are respectively disposed on two clamping plates, and the B-type connector is disposed inside the hollow part. The A-type connector and the B-type connector are engaged.

[0010] Preferably, the limiting component further includes an electrically controlled telescopic rod, wherein multiple electrically controlled telescopic rods are provided, and all multiple electrically controlled telescopic rods are provided within the hollow component, and the B-type fastener is provided on the output end of the multiple electrically controlled telescopic rods.

[0011] Preferably, the hoisting assembly includes a placement component, a sliding component, a B-rack, and a B-gear. The placement component is disposed above the mounting component, the sliding component is disposed on the placement component, the B-rack is disposed on the mounting component and slidably disposed within the sliding component, and the B-gear is disposed within the sliding component, with the B-gear and B-rack meshing.

[0012] Preferably, the hoisting assembly further includes a B motor, which is disposed on the placement member, and the output end of the B motor passes through one side surface of the sliding member and is connected to the B gear.

[0013] Preferably, the placement member is configured as a U-shaped structure, and the sliding member is configured as an L-shaped structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] During use, the vibrator assembly and the bridge body can be stably connected by the clamping component, allowing for precise control of the excitation frequency and amplitude during subsequent testing. This is suitable for testing specific modal parameters. During setup, the position of the clamping component can be fixed by the limiting component to prevent the clamping component from shaking due to vibration, thus affecting the accuracy of the test. Furthermore, the combined use of the clamping and limiting components can prevent drilling holes in the bridge deck during testing, thereby avoiding damage to the bridge body. Attached Figure Description

[0016] Figure 1 This is a first perspective structural diagram of the present invention;

[0017] Figure 2 This is a second perspective structural diagram of the present invention;

[0018] Figure 3 This is a first partial exploded view of the present invention;

[0019] Figure 4 This is a first partial perspective view of the present invention;

[0020] Figure 5 This is a second partial exploded view of the present invention;

[0021] Figure 6 This utility model Figure 5 A magnified view of a section at point A in the middle;

[0022] Figure 7 This is a second partial perspective view of the present invention.

[0023] In the diagram: 1. Clamping assembly; 11. Mounting component; 12. Gear A; 13. Rack A; 14. Clamping plate; 15. Motor A; 2. Vibrator assembly; 21. Base; 22. Vibrator body; 23. Connecting shaft; 3. Limiting assembly; 31. Hollow component; 32. Connector A; 33. Connector B; 34. Electrically controlled telescopic rod; 4. Lifting assembly; 41. Placement component; 42. Sliding component; 43. Rack B; 44. Motor B; 45. Gear B. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-7 This utility model provides a non-destructive testing device for bridge load-bearing capacity, including a clamping assembly 1, a vibrator assembly 2 on the clamping assembly 1, a limit assembly 3 and a hoisting assembly 4 on the clamping assembly 1;

[0026] The clamping assembly 1 includes a mounting part 11, on which a moving groove is provided. An A gear 12 is provided in the moving groove, and an A rack 13 is provided in the moving groove. The A rack 13 and the A gear 12 mesh. A clamping plate 14 is provided at the end of the A rack 13 and is provided in the moving groove. There are two A racks 13 and two clamping plates 14, which are symmetrically arranged. An A motor 15 is provided in the moving groove, and the output end of the A motor 15 is connected to the A gear 12.

[0027] Specifically, when setting up the vibrator assembly 2, the vibrator assembly 2 can be connected to the mounting component 11. Then, the mounting component 11 can be set on the side of the bridge. At this time, by starting the A motor 15, the A gear 12 is driven to rotate, which in turn drives the two A racks 13 to move. Through the relative movement of the two A racks 13, the clamping plate 14 can be moved, thereby clamping the bridge deck and the bridge bottom through the clamping plate 14. This allows the mounting component 11 to be stably set on the bridge. At this time, the bridge vibration can be induced by a single heavy vehicle traveling at different speeds, such as constant speed, braking, and jumping, and tested through the vibrator assembly 2, thereby detecting the bridge's load-bearing capacity.

[0028] In this embodiment, the exciter assembly 2 includes a base 21, an exciter body 22, and a connecting shaft 23. The base 21 is disposed on the mounting component 11, and there are two connecting shafts 23, both of which are disposed on the base 21. The exciter body 22 is disposed between the two connecting shafts 23.

[0029] Specifically, during testing, in order to ensure that the vibrator body 22 can be stably set up and that the vibration of the bridge can be accurately detected through the vibrator body 22 during testing, the vibrator body 22 is set between two connecting shafts 23, and the connecting shafts 23 are set on the base 21. The base 21 is connected to the mounting part 11 by bolts, so that the vibration of the bridge can be detected in a timely and accurate manner through the vibrator body 22.

[0030] In this embodiment, the limiting component 3 includes a hollow part 31, an A-type connector 32, and a B-type connector 33. The hollow part 31 and the A-type connector 32 are respectively disposed on two clamping plates 14, and the B-type connector 33 is disposed inside the hollow part 31. The A-type connector 32 and the B-type connector 33 are engaged.

[0031] Specifically, in order to ensure that the two clamping plates 14 can stably clamp the bridge during use, a hollow part 31 and an A-type connector 32 can be respectively provided on the two clamping plates 14, and a B-type connector 33 can be provided inside the hollow part 31. By engaging the A-type connector 32 and the B-type connector 33, the two clamping plates 14 can not move in the opposite direction, thereby allowing the mounting part 11 to be stably installed on the bridge.

[0032] In this embodiment, the limiting component 3 also includes an electrically controlled telescopic rod 34. Multiple electrically controlled telescopic rods 34 are provided, and all of the multiple electrically controlled telescopic rods 34 are provided inside the hollow component 31. The B-type connector 33 is provided on the output end of the multiple electrically controlled telescopic rods 34.

[0033] Specifically, in order to remove the mounting component 11 after the test is completed, multiple electrically controlled telescopic rods 34 are provided inside the hollow component 31, and the B-type connector 33 is set at the telescopic end of the multiple electrically controlled telescopic rods 34. At this time, by controlling the retraction of the electrically controlled telescopic rods 34, the A-type connector 32 and the B-type connector 33 will no longer be locked, so that the two clamping plates 14 will no longer clamp the bridge, and the mounting component 11 can be removed.

[0034] In this embodiment, the hoisting assembly 4 includes a placement member 41, a sliding member 42, a B rack 43, and a B gear 45. The placement member 41 is disposed above the mounting member 11, the sliding member 42 is disposed on the placement member 41, the B rack 43 is disposed on the mounting member 11 and is slidably disposed within the sliding member 42, and the B gear 45 is disposed within the sliding member 42 and meshes with the B rack 43.

[0035] Specifically, in order to install the mounting component 11 on the side of the bridge, the placement component 41 can be placed on the bridge railing first. At this time, the B gear 45 can be rotated to drive the B rack 43 to move downward, which in turn can drive the mounting component 11 to move downward. When the mounting component 11 moves to the side of the bridge, the rotation of the B gear 45 is stopped, so that the mounting component 11 is stably set at this height position, which makes it easier to fix the mounting component 11 to the side of the bridge later.

[0036] In this embodiment, the hoisting assembly 4 also includes a B motor 44, which is disposed on the placement member 41, and the output end of the B motor 44 passes through one side surface of the sliding member 42 and is connected to the B gear 45.

[0037] Specifically, in order to control the automatic rotation of gear B 45 during use, a motor B 44 can be installed on the placement part 41, and the output end of motor B 44 passes through one end of sliding part 42 and is connected to gear B 45. At this time, the rotation of gear B 45 can be controlled by controlling the start of motor B 44.

[0038] In this embodiment, the placement member 41 is configured as a U-shaped structure, and the sliding member 42 is configured as an L-shaped structure.

[0039] Specifically, in order to ensure that the placement member 41 can be stably attached to the guardrail, the placement member 41 can be set as a U-shaped structure, and in order to allow the B-tooth rack 43 to slide on the slider 42, the slider 42 can be set as an L-shaped structure.

[0040] The working principle and usage process of this utility model are as follows: When testing the load-bearing capacity of a bridge, in order to avoid damaging the bridge during the testing process, the placement component 41 can be first attached to the bridge railing. At this time, the installation component 11 can be moved to the side of the bridge by the hoisting component 4, and the installation component 11 can be stably set at the side of the bridge by the clamping of the two clamping plates 14. At this time, the position of the two clamping plates 14 can be fixed by the limiting component 3, thereby preventing the installation component 11 from falling off. Then, the bridge vibration can be stimulated by a single heavy vehicle traveling at different speeds, and the vibration data can be collected and detected by the exciter component 2, thereby testing the load-bearing capacity of the bridge.

[0041] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0042] 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 non-destructive testing device for bridge load-bearing capacity, characterized in that: It includes a clamping assembly (1), on which a vibrator assembly (2) is provided, and on which a limit assembly (3) and a hoisting assembly (4) are provided; The clamping assembly (1) includes a mounting part (11), on which a moving groove is provided. An A gear (12) is provided in the moving groove, and an A rack (13) is provided in the moving groove. The A rack (13) and the A gear (12) mesh. A clamping plate (14) is provided at the end of the A rack (13), and the clamping plate (14) is provided in the moving groove. There are two A racks (13) and two clamping plates (14), and they are symmetrically arranged. An A motor (15) is provided in the moving groove, and the output end of the A motor (15) is connected to the A gear (12).

2. The non-destructive testing device for bridge load-bearing capacity according to claim 1, characterized in that: The vibrator assembly (2) includes a base (21), a vibrator body (22) and a connecting shaft (23). The base (21) is mounted on the mounting component (11). There are two connecting shafts (23), both of which are mounted on the base (21). The vibrator body (22) is located between the two connecting shafts (23).

3. The non-destructive testing device for bridge load-bearing capacity according to claim 1, characterized in that: The limiting component (3) includes a hollow part (31), an A-type connector (32), and a B-type connector (33). The hollow part (31) and the A-type connector (32) are respectively disposed on two clamping plates (14), and the B-type connector (33) is disposed inside the hollow part (31). The A-type connector (32) and the B-type connector (33) are engaged.

4. The non-destructive testing device for bridge load-bearing capacity according to claim 3, characterized in that: The limiting component (3) also includes an electrically controlled telescopic rod (34), and multiple electrically controlled telescopic rods (34) are provided, and multiple electrically controlled telescopic rods (34) are all provided in the hollow part (31). The B-type connector (33) is provided on the output end of multiple electrically controlled telescopic rods (34).

5. The non-destructive testing device for bridge load-bearing capacity according to claim 1, characterized in that: The hoisting assembly (4) includes a placement component (41), a sliding component (42), a B rack (43), and a B gear (45). The placement component (41) is disposed above the mounting component (11). The sliding component (42) is disposed on the placement component (41). The B rack (43) is disposed on the mounting component (11) and is slidably disposed within the sliding component (42). The B gear (45) is disposed within the sliding component (42) and the B gear (45) and the B rack (43) mesh.

6. The non-destructive testing device for bridge load-bearing capacity according to claim 5, characterized in that: The hoisting assembly (4) also includes a B motor (44), which is mounted on the placement member (41) and the output end of the B motor (44) passes through one side surface of the sliding member (42) and is connected to the B gear (45).

7. The non-destructive testing device for bridge load-bearing capacity according to claim 5, characterized in that: The placement member (41) is configured as a U-shaped structure, and the sliding member (42) is configured as an L-shaped structure.

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