Steel bridge stiffening plate welding seam walking detection device

Abstract

The utility model relates to a steel bridge stiffening plate welding seam walking detection device which comprises a base provided with a walking assembly, the base is provided with a transverse moving seat body, the transverse moving seat body is provided with a longitudinal moving seat body, the longitudinal moving seat body is provided with a lifting seat body, the lifting seat body is provided with a detection device, and the detection device is provided with a detector. The detection equipment is composed of a phased array probe and an industrial camera. The steel bridge stiffening plate welding seam walking detection device overcomes the defects in manual detection, and improves the detection efficiency and precision. The device is provided with a phased array probe and an industrial camera, and is mainly used for carrying out ultrasonic detection and appearance photographing on the fillet weld of the U-shaped rib and the top wall plate. The phased array probe is mainly used for detecting internal defects of a welding seam, and the industrial camera is mainly used for identifying appearance and defects of the welding seam.

Description

Technical Field

[0001] The utility model relates to a walking detection device for a steel bridge stiffening plate weld, and relates to the technical field of fatigue crack detection of orthotropic steel bridge decks. Background Art

[0002] Orthotropic steel bridge decks, with their outstanding advantages of light weight, high bearing capacity, and wide applicability, are increasingly being used in bridge engineering. However, due to the structural characteristics of orthotropic steel bridge decks, fatigue damage is common and has become a major problem for long-span steel bridges during operation. Once cracks develop in a steel bridge deck, if the problem is not discovered and addressed promptly, it can lead to serious accidents, resulting in significant economic losses and social impact. In actual engineering, bridge personnel involved in fatigue cracking will conduct crack inspections and assessments to facilitate crack repair. Therefore, the efficiency and quality of bridge crack detection play a key role in repair work and are of great significance to ensuring the safety and durability of bridges during operation.

[0003] During the operation of steel structure bridges, regular inspections are carried out, as well as targeted special inspections. Fatigue crack detection generally adopts non-destructive testing methods, namely penetration testing, magnetic particle testing and ultrasonic testing. At present, for the maintenance and inspection of steel bridges, regular inspections are mainly manual inspections, which are mainly aimed at the detection of cracks that have occurred, and the locations of the defects are recorded and tracked. Manual inspection requires high quality, professional knowledge and experience of the inspectors. However, manual inspection has the disadvantages of large workload and uneven inspection quality, which has an adverse effect on the inspection work and subsequent repair work. Since there are many bridges in my country that use orthotropic steel bridge decks, manual inspection can no longer meet production needs, and a device that can automatically detect is needed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a walking detection device for the weld seam of a steel bridge stiffening plate.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a steel bridge stiffener weld walking detection device, including a base provided with a walking component, a transversely movable seat body is provided on the base, a longitudinally movable seat body is provided on the transversely movable seat body, a lifting seat body is provided on the longitudinally movable seat body, and a detection equipment is provided on the lifting seat body, and the detection equipment consists of a phased array probe and an industrial camera.

[0006] Preferably, the base includes a walking middle supporting structure that is symmetrically arranged on the left and right, and the left and right walking middle supporting structures are fixedly connected to each other through a plurality of middle connecting plates.

[0007] Preferably, the walking assembly includes four groups of telescopic cylinders, the cylinder bodies of the telescopic cylinders are respectively fixedly connected to the front and rear ends of the walking middle support structure, the piston rods of the front telescopic cylinders are all facing forward and fixedly connected to the walking front support structure, and the piston rods of the rear telescopic cylinders are all facing backward and fixedly connected to the walking rear support structure.

[0008] Preferably, electromagnets are fixedly connected to the top surface of the middle walking support structure, the top surface of the front walking support structure, and the top surface of the rear walking support structure, and the electromagnets are electrically connected to the control module of the walking detection device.

[0009] Preferably, an annular conveyor belt is symmetrically installed on the base, and the front and rear ends of the conveyor belt are both wrapped around pulleys driven to rotate by a motor for horizontal reciprocating transmission. A number of support pulleys arranged front and back are also provided on the conveyor belt between the front and rear pulleys, and the horizontally movable seat is fixedly connected to the upper belt body of the conveyor belt.

[0010] Preferably, the transversely movable seat includes two vertical plates distributed front and back, the two vertical plates are fixedly connected as a whole via a supporting crossbeam, and a cover plate is fixed between the tops of the two vertical plates.

[0011] Preferably, two longitudinal movable seats are provided on the left and right, and the longitudinal movable seats and the transverse movable seats are connected via a longitudinally extending slider rail movable pair, and the longitudinal movable seats are threaded with a fixing screw for tightening on the rail.

[0012] Preferably, a vertical lifting guide groove is provided on the longitudinal movable seat body, the lifting seat body is vertically inserted into the lifting guide groove, a vertical groove bar is opened on the longitudinal movable seat body, and a locking screw threaded on the lifting seat body is passed through the vertical groove bar.

[0013] Preferably, two longitudinal movable bases are provided on the left and right sides, the phased array probe is mainly used for detecting internal defects of the weld, and the industrial camera is mainly used for identifying the external morphology and defects of the weld.

[0014] Preferably, the steel bridge stiffening plate includes a top wall plate, and U-shaped ribs are symmetrically welded to the bottom of the left and right sides of the top wall plate, wherein the U-row openings of the U-shaped ribs are welded to the bottom surface of the top wall plate facing upward.

[0015] Compared with existing technologies, this utility model offers the following advantages: This walking inspection device for steel bridge stiffener welds overcomes the shortcomings of manual inspection, improving inspection efficiency and accuracy. The device, equipped with a phased array probe and an industrial camera, primarily performs ultrasonic inspection and external photography of U-shaped rib and roof panel fillet welds. The phased array probe is primarily used to detect internal weld defects, while the industrial camera is primarily used to identify weld surface topography and defects.

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the transverse cross-sectional structure of the bridge deck when the embodiment of the utility model is working;

[0018] Figure 2 This is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the walking assembly of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the single-side structure of the walking assembly of an embodiment of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the horizontal and vertical movable seat body of an embodiment of the utility model;

[0022] Figure 6 This is a schematic structural diagram of a transversely movable seat according to an embodiment of the present utility model;

[0023] Figure 7 This is a schematic structural diagram of the detection equipment according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] like Figures 1 to 7 As shown, this embodiment provides a steel bridge stiffener weld walking detection device, including a base 2 provided with a walking component 1, a transverse movable base 3 provided on the base, a longitudinal movable base 4 provided on the transverse movable base, a lifting base 5 provided on the longitudinal movable base, and a detection equipment provided on the lifting base, which consists of a phased array probe 6 and an industrial camera 7.

[0028] In the embodiment of the present invention, the base includes a walking middle supporting structure 8 that is symmetrically arranged on the left and right, and the left and right walking middle supporting structures are fixedly connected to each other via a plurality of middle connecting plates 9.

[0029] In an embodiment of the present utility model, the walking assembly includes four groups of telescopic cylinders 10, the cylinder bodies of the telescopic cylinders are respectively fixedly connected to the front and rear ends of the walking middle support structure, the piston rods of the front telescopic cylinders are all facing forward and fixedly connected to the walking front support structure 11, and the piston rods of the rear telescopic cylinders are all facing backward and fixedly connected to the walking rear support structure 12.

[0030] In the embodiment of the present invention, electromagnets 13 are fixedly connected to the top surfaces of the middle walking support structure, the front walking support structure and the rear walking support structure, and the electromagnets are electrically connected to the control module of the walking detection device.

[0031] In an embodiment of the present utility model, an annular conveyor belt 14 is symmetrically installed on the base. The front and rear ends of the conveyor belt are both wound on a pulley 15 driven to rotate by a motor for horizontal reciprocating transmission. A plurality of support pulleys 16 arranged front and back are also provided on the conveyor belt between the front and rear pulleys. The horizontally movable seat is fixedly connected to the upper belt body of the conveyor belt.

[0032] In the embodiment of the present invention, the transversely movable seat includes two vertical plates 17 distributed front and back, the two vertical plates are fixedly connected as a whole via a supporting crossbeam 18, and a cover plate 19 is fixed between the tops of the two vertical plates.

[0033] In the embodiment of the present invention, there are two longitudinal movable seats on the left and right, and the longitudinal movable seats and the transverse movable seats are connected via a longitudinally extending slider rail moving pair 20, and the longitudinal movable seats are screwed with a fixing screw 21 for tightening on the rail.

[0034] In an embodiment of the present invention, a vertical lifting guide groove 22 is provided on the longitudinal movable seat body, and the lifting seat body is vertically inserted into the lifting guide groove. A vertical groove bar 23 is opened on the longitudinal movable seat body, and a locking screw 24 screwed to the lifting seat body is passed through the vertical groove bar.

[0035] In an embodiment of the present utility model, two longitudinal movable bases are provided on the left and right sides, the phased array probe is mainly used for detecting internal defects of the weld, and the industrial camera is mainly used for identifying the external morphology and defects of the weld.

[0036] In an embodiment of the present invention, the steel bridge stiffening plate includes a top wall plate 25, and U-shaped ribs 26 are symmetrically welded to the bottom of the left and right sides of the top wall plate, wherein the U-shaped ribs have U-row openings facing upward and are welded to the bottom surface of the top wall plate.

[0037] In an embodiment of the present invention, the telescopic cylinder is a hydraulic cylinder.

[0038] In the embodiment of the present invention, the steel bridge stiffener weld detection device is used to detect the U-rib welds between the U-shaped ribs and the top wall plate. The working principle is as follows:

[0039] 1. Apply current to all electromagnets to generate magnetism, and align the middle of the device with the middle of the two U-shaped ribs so that the electromagnets can be stably adsorbed on the bottom of the U-shaped ribs on both sides.

[0040] 2. Adjust the height, horizontal and vertical position of the lifting seat so that the detection equipment can be aligned with the U-rib weld.

[0041] 3. Control the conveyor belt to drive the detection equipment to move along the length direction (horizontally) of the U-shaped rib for detection until it moves to the maximum position, and one round of detection is completed.

[0042] 4. After a round of testing, the travel assembly needs to be moved. First, the electromagnet of the travel front support structure is de-energized to make it lose its adsorption capacity. Then, the telescopic cylinder of the travel front support structure is activated to extend and move forward until it stops at the maximum position. Then, the electromagnet is energized to make it adsorb at the maximum position.

[0043] 5. Turn off the power to the electromagnet of the middle support structure of the walking part to release the adsorption capacity. At this time, the telescopic cylinder of the front support is shortened, and the telescopic cylinder of the rear support is extended, so that the middle support structure of the walking part moves forward. When it moves to the maximum position, the electromagnet is energized to make it continue to adsorb on the U-shaped rib.

[0044] 6. Cut off the power to the electromagnet supporting the rear part, start its telescopic cylinder, shorten it and move it forward. When it moves to the maximum position, energize the electromagnet so that it continues to be adsorbed on the U-shaped rib. At this point, the forward movement step of the walking assembly is completed.

[0045] 7. Since the detection equipment also moves forward with the walking assembly, start the conveyor belt first to return the detection equipment to the end point of the previous round of detection.

[0046] 8. Repeat step 3 to complete another round of testing.

[0047] 9. Repeat steps 3-8 to complete the inspection of a set of welds.

[0048] The present invention utilizes a telescopic cylinder to move to ensure a smooth walking process, can reduce the probability of misalignment of the detection device, and can improve the detection accuracy. Detection equipment is provided on both sides to improve the detection efficiency.

[0049] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A walking detection device for steel bridge stiffener welds, characterized by: It includes a base with a walking component, a transversely movable base body is provided on the base, a longitudinally movable base body is provided on the transversely movable base body, a lifting base body is provided on the longitudinally movable base body, and a detection equipment is provided on the lifting base body, and the detection equipment consists of a phased array probe and an industrial camera.

2. The steel bridge stiffener weld detection device according to claim 1, characterized in that: The base comprises a walking middle supporting structure which is symmetrically arranged on the left and right sides, and the left and right walking middle supporting structures are fixedly connected to each other via a plurality of middle connecting plates.

3. The steel bridge stiffener weld detection device according to claim 2, characterized in that: The walking assembly includes four groups of telescopic cylinders, the cylinder bodies of the telescopic cylinders are respectively fixedly connected to the front and rear ends of the walking middle support structure, the piston rods of the front telescopic cylinders are all facing forward and fixedly connected to the walking front support structure, and the piston rods of the rear telescopic cylinders are all facing backward and fixedly connected to the walking rear support structure.

4. The steel bridge stiffener weld detection device according to claim 3, characterized in that: Electromagnets are fixedly connected to the top surface of the middle walking support structure, the top surface of the front walking support structure, and the top surface of the rear walking support structure. The electromagnets are electrically connected to the control module of the walking detection device.

5. The steel bridge stiffener weld detection device according to claim 1, characterized in that: An annular conveyor belt is symmetrically installed on the base. The front and rear ends of the conveyor belt are wrapped around pulleys driven by a motor for horizontal reciprocating transmission. A plurality of supporting pulleys arranged front and back are also provided on the conveyor belt between the front and rear pulleys. The horizontally movable seat is fixedly connected to the upper belt body of the conveyor belt.

6. The steel bridge stiffener weld detection device according to claim 1, characterized in that: The transversely movable seat comprises two vertical plates distributed front and back, the two vertical plates are fixedly connected as a whole via a supporting crossbeam, and a cover plate is fixed between the tops of the two vertical plates.

7. The steel bridge stiffener weld detection device according to claim 1, characterized in that: There are two longitudinal movable seats on the left and right sides, and the longitudinal movable seats are connected to the transverse movable seats via a longitudinally extending slider rail moving pair, and the longitudinal movable seats are threaded with a fixing screw for tightening on the rail.

8. The steel bridge stiffener weld detection device according to claim 1, characterized in that: The longitudinal movable seat body is provided with a vertical lifting guide groove, the lifting seat body is vertically inserted into the lifting guide groove, the longitudinal movable seat body is provided with a vertical groove bar, and the vertical groove bar is penetrated by a locking screw screwed on the lifting seat body.

9. The steel bridge stiffener weld detection device according to claim 1, characterized in that: There are two longitudinal movable bases on the left and right sides. The phased array probe is mainly used for detecting internal defects of the weld, and the industrial camera is mainly used for identifying the external appearance of the weld and defects.

10. The steel bridge stiffener weld detection device according to claim 1, characterized in that: The steel bridge stiffening plate includes a top wall plate, and U-shaped ribs are symmetrically welded to the bottom of the left and right sides of the top wall plate, wherein the U-row openings of the U-shaped ribs face upward and are welded to the bottom surface of the top wall plate.

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