Bridge cable saddle friction plate weld joint ultrasonic detection device

Abstract

The invention discloses a bridge cable saddle friction plate weld joint ultrasonic detection device, and belongs to the technical field of detection equipment, the bridge cable saddle friction plate weld joint ultrasonic detection device comprises a scanning box and a fixing frame, the two sides of the scanning box are fixedly connected with side wheel frames, an adjusting mechanism comprises an adjusting cylinder and a winding wheel, the adjusting cylinder is fixedly connected with a mounting disc, and the winding wheel is fixedly connected with the scanning box. A winding chain belt is fixedly connected between the middle of the winding wheel and the middle of the auxiliary wheel, a sweeping mechanism is installed at the bottom of the back face of the scanning box and comprises a rotating rod and a sweeping rod, the winding wheel can drive the scanning box to move through the winding chain belt, and the winding chain belt can drive the sweeping rod to rotate through the rotating rod. The welding seam detection device has the technical effects that the probe frame can be flexibly adjusted, welding seams on the two sides can be conveniently detected, meanwhile, dust, soil particles and other shelters attached to the welding seams can be conveniently cleaned, and the detection precision and efficiency are effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of testing equipment technology, and in particular relates to an ultrasonic testing device for the weld seam of bridge cable saddle friction plate. Background Technology

[0002] The main cable saddles and cable tie saddles of large bridges are permanent structural components that support the main cables of suspension bridges and cannot be replaced. Due to design requirements, suspension bridge cable saddles require the welding of multiple friction plates (diaphragms). The gaps between these friction plates are small, making non-destructive testing of the welds in such deep and narrow spaces difficult. However, as crucial components of the bridge, flaw detection is essential. Ultrasonic testing utilizes the propagation characteristics of ultrasonic waves in materials to detect internal defects in welds. The ultrasonic waves emitted by the ultrasonic flaw detector propagate within the weld. When encountering a defect, the ultrasonic waves undergo reflection and refraction. The flaw detector receives these reflected waves and determines the location and size of the defect based on information such as the time and amplitude of the reflected waves. When performing ultrasonic testing on the welds of the cable tie friction plates, a coupling agent needs to be applied to the surface of the object being tested. The ultrasonic probe uses a fan-shaped scanning method that moves laterally parallel to the weld to complete the inspection.

[0003] To address this, Chinese patent CN209894757U discloses an ultrasonic phased array flaw detection device for bridge cable saddle friction plate welds. The device includes a scanning frame with four rollers at its bottom. A transverse groove is formed at the rear end of the scanning frame, within which a probe frame is positioned. A phased array probe is mounted at the end of the probe frame. Two sets of anti-deviation devices are symmetrically arranged on the scanning frame. By moving the probe parallel to the weld laterally, a fan-shaped scan is achieved. The phased array imaging technology makes the detection process intuitive and significantly improves the detection rate.

[0004] However, if the dust and other foreign objects adhering to the weld seam are not cleaned in time during the testing process, the accuracy and quality of the ultrasonic testing will be easily affected, thus affecting the testing efficiency. Furthermore, for the weld seams of the friction plates on both sides, the probe holder needs to be disassembled and the probe adjusted before the weld seam of the other friction plate can be tested. The probe holder is not conducive to quick and flexible adjustment and is inconvenient to use. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides an ultrasonic testing device for bridge cable saddle friction plate welds. It features a flexible and convenient probe holder for inspecting welds on both sides, and facilitates the removal of dust, dirt, and other obstructions adhering to the weld, effectively improving testing accuracy and efficiency. This solves the problem in the prior art where, if dust and other foreign objects adhering to the weld are not cleaned in time, they can easily affect the accuracy and quality of ultrasonic testing, impacting testing efficiency. Furthermore, for welds on both sides of the friction plates, the probe holder needs to be disassembled and the probe adjusted before testing the weld on the other side, making the probe holder difficult to adjust quickly and flexibly, resulting in inconvenience.

[0006] This invention is implemented as follows: an ultrasonic testing device for friction plate welds on bridge cables includes a scanning box and a fixing frame. An auxiliary wheel is fixedly mounted on the fixing frame. Side wheel frames are fixedly connected to both sides of the scanning box, and guide wheels are mounted on the side wheel frames. A mounting plate is rotatably connected to the top of the scanning box, and a probe frame is fixedly connected to the mounting plate. An ultrasonic probe is fixedly mounted at the end of the probe frame. An adjustment mechanism is installed inside the scanning box, comprising an adjustment cylinder and a winding wheel. The adjustment cylinder is fixedly connected to the mounting plate. A winding chain is fixedly connected between the middle of the winding wheel and the auxiliary wheel. A cleaning mechanism is installed at the bottom back of the scanning box, comprising a rotating rod and a cleaning rod. The winding wheel can move the scanning box via the winding chain, and the winding chain can rotate the cleaning rod via the rotating rod. The top of the winding wheel can rotate the adjustment cylinder via an elastic pusher.

[0007] This setup, through an adjustment mechanism, allows the winding wheel to wind up the winding chain, enabling the scanning box and ultrasonic probe to move and scan the weld seam on one side. Conversely, when the winding wheel reverses, it extends the winding chain, and the combination of the winding wheel and the elastic pusher rotates the adjusting cylinder, which in turn rotates the probe holder to the weld seam on the other side for inspection. This flexible adjustment saves time and effort. Furthermore, the coordination between the winding chain and the cleaning mechanism allows the cleaning rod to rotate and remove dust, dirt, and other obstructions from the weld seam, effectively improving the accuracy and efficiency of the inspection.

[0008] In a preferred embodiment of the present invention, a support ring and a motor are fixedly connected to the inner bottom of the scanning box, the bottom of the take-up wheel is connected to the support ring via a bearing, the output end of the motor is fixedly connected to the middle of the take-up wheel, and two stop blocks are fixedly connected to the inner top of the scanning box, with the two stop blocks symmetrically arranged on both sides of the adjusting cylinder.

[0009] This design facilitates the secure installation of the winding wheel, and the motor can be started to drive the winding wheel to rotate, making it easy to use. The stop block helps to limit the rotation angle of the adjusting cylinder, which in turn facilitates the positioning of the probe frame. This helps the ultrasonic probe to be aligned with the weld on the other side, thus facilitating stable scanning and testing by the scanning box driving the probe frame.

[0010] In a preferred embodiment of the present invention, the top of the adjusting cylinder is fixedly connected to the mounting plate, the bottom of the adjusting cylinder is separated from the winding wheel by a gap, the adjusting cylinder is connected to the scanning box through a bearing, a lever plate is fixedly connected to the side wall of the adjusting cylinder, an upper lever block and a lower lever block are fixedly connected to the upper and lower ends of the lever plate respectively, the stop block can limit and abut against the upper lever block, and the elastic push block can slide and abut against the lower lever block.

[0011] This design facilitates stable rotation of the mounting plate, probe holder, and ultrasonic probe by the adjusting cylinder. When inspecting a weld on one side, the rotating take-up wheel drives the elastic push block to rotate. When the elastic push block rotates to the lower push block position, the stop block blocks the upper push block, restricting the push plate. Therefore, the elastic push block slides past the lower push block until the weld inspection on one side is completed. When inspecting a weld on the other side, the take-up wheel reverses, driving the elastic push block to push the lower push block in the opposite direction. This causes the upper push block to disengage from the stop block, allowing the push plate to drive the adjusting cylinder and probe holder to rotate until the upper push block rotates to engage with the stop block on the other side. At this point, the probe holder can be aligned with the weld on the other side. The take-up wheel continues to reverse, and the elastic push block slides past the lower push block again until the weld inspection on the other side is completed.

[0012] In a preferred embodiment of the present invention, a second magnetic block is fixedly connected to both sides of the upper push block, a first magnetic block is fixedly connected to the front of the stop block, the first magnetic block and the second magnetic block are attracted and fixed together, and the ends of the lower push block and the elastic push block are both arranged in an arc shape.

[0013] With this setting, when the upper push block and the stop block are in contact, the second magnetic block and the first magnetic block can be used to attract and fix them together, which in turn facilitates the stable positioning of the probe holder's rotation position, so as to ensure that the ultrasonic probe is stably aligned with the weld for inspection, which helps to ensure the quality of the scanning and inspection work.

[0014] As a preferred embodiment of the present invention, the other end of the elastic push block is fixedly connected to a support block, the support block is fixedly connected to the top of the winding wheel, the elastic push block includes a spring ring, a support spring is fixedly connected inside the spring ring, and a rubber pad is sleeved and fixed on the outer wall of the spring ring.

[0015] This design effectively improves the stability of the elastic push block connection structure, facilitates the synchronous rotation of the elastic push block by the winding wheel, ensures the elasticity and support strength of the elastic push block, increases the friction between the elastic push block and the lower push block, and thus facilitates the elastic push block to push the lower push block and slide over the lower push block, making it more flexible to use.

[0016] As a preferred embodiment of the present invention, both sides of the winding chain belt are provided with telescopic springs, and the two ends of the telescopic springs are respectively fixedly connected to the scanning box and the fixing frame. The rotating rod is connected to the scanning box through a bearing, and a sprocket is sleeved and fixed on the rotating rod. The sprocket and the winding chain belt are meshed and connected. The lower end of the rotating rod extends through to the bottom of the scanning box.

[0017] With this setup, the mounting bracket is installed on the outside of the scanning box and fixed at a suitable height. For ease of use, staff can also hold the mounting bracket by hand. When the take-up wheel rotates, the take-up chain winds up the scanning box, which moves along with it and compresses the telescopic spring. When the take-up wheel reverses, the telescopic spring gradually returns to its original position, pushing the scanning box to move in the opposite direction. This also causes the take-up chain to gradually extend, making it easier to move and use the scanning box. Furthermore, the take-up chain can drive the sprocket and rotating rod to rotate synchronously during the movement of the take-up chain.

[0018] In a preferred embodiment of the present invention, the sweeping rod is connected to the bottom of the scanning box via a bearing. There are two sweeping rods located at both ends of the bottom of the scanning box. Gears are fixedly fitted onto both the rotating rod and the sweeping rod. The gears are connected to each other via a transmission belt. A sweeping disc is fixedly fitted onto the bottom of the sweeping rod, and a sweeping brush is fixedly connected to the sweeping disc.

[0019] This design allows the rotating rod to drive the cleaning rod to rotate synchronously, which in turn drives the cleaning disc and cleaning brush to rotate, thus enabling the cleaning operation at the weld seam. This effectively ensures the accuracy and quality of the inspection and improves the efficiency of the inspection work.

[0020] In a preferred embodiment of the present invention, a fixing rod is inserted through the inside of the side wheel frame, the fixing rod is provided with a threaded groove, the threaded groove is threadedly connected to the side wheel frame, a support cylinder is sleeved and fixed on the fixing rod, a slide rod is slidably inserted inside the support cylinder, the shaft of the guide wheel is connected to one end of the slide rod through a bearing, and a rubber sleeve is sleeved and fixed on the guide wheel.

[0021] This design allows the guide wheel to press firmly against the friction plate during movement. Simultaneously, the fixing rod can be rotated appropriately according to the distance between the friction plates, adjusting the guide wheel to a certain angle for better contact and tightness with the friction plate. This flexible adjustment has a wide range of applications and helps prevent the scanning box from deviating during movement, thereby further improving detection accuracy and quality.

[0022] In a preferred embodiment of the present invention, the other end of the slide rod is fixedly connected to the inner end of the support cylinder by a tightening spring, and limit sliders are fixedly connected to both sides of the other end of the slide rod. A limit groove is formed on the side wall of the support cylinder, and the limit slider slides along the limit groove.

[0023] This design allows for flexible support of the guide wheels, resulting in high stability.

[0024] As a preferred embodiment of the present invention, the top of the scanning box is provided with a semi-annular tube passage, and the front of the scanning box is provided with a tube hole.

[0025] This design facilitates the insertion of the coupling water conduit into the through-hole and through-channel and its binding and fixation to the probe holder. It also facilitates the spraying of coupling water onto the weld to be tested for inspection. When the probe holder is rotated, the coupling water conduit moves accordingly. The coupling water conduit can be made of plastic hose or spring hose, making it easy to use.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: On the one hand, the winding wheel rewinds the winding chain, enabling the scanning box and ultrasonic probe to move and scan the weld seam on one side. On the other hand, when the winding wheel reverses, it drives the winding chain to extend, and then the winding wheel and the elastic push block work together to drive the adjusting cylinder to rotate, thereby driving the probe holder to rotate to the weld seam on the other side and move it to inspect the weld seam on the other side. The adjustment and use are flexible, saving time and effort. At the same time, the cooperation between the winding chain and the cleaning mechanism allows the cleaning rod to rotate and clean the dust, soil particles and other obstructions attached to the weld seam, thereby effectively improving the accuracy and efficiency of the inspection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the scanning box provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the rear cross-sectional structure of the scanning box provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the bottom structure provided in an embodiment of the present invention; Figure 5 This is a partial right-side cross-sectional view of the structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the regulating cylinder structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of the support cylinder provided in an embodiment of the present invention; Figure 8 This is provided by the embodiments of the present invention. Figure 4Schematic diagram of the structure at the center sweeper bar; Figure 9 This is provided by the embodiments of the present invention. Figure 5 Schematic diagram of the structure at the center deflector plate; Figure 10 This is a top view schematic diagram of the elastic pusher structure provided in an embodiment of the present invention.

[0028] In the diagram: 1. Scanning box; 101. Pipe passage; 102. Pipe hole; 103. Stop block; 104. First magnetic block; 105. Support ring; 106. Motor; 2. Side wheel frame; 201. Fixing rod; 202. Threaded groove; 3. Support cylinder; 301. Limiting slide groove; 302. Tensioning spring; 303. Slide rod; 304. Limiting slider; 305. Guide wheel; 306. Rubber sleeve; 4. Mounting plate; 401. Probe holder; 402. Ultrasonic probe; 5. 501. Adjusting cylinder; 502. Dial plate; 503. Upper dial block; 504. Lower dial block; 505. Second magnetic block; 6. Rewinding wheel; 601. Rewinding chain belt; 602. Support block; 603. Rubber pad; 604. Spring ring; 605. Support spring; 7. Fixing frame; 701. Auxiliary wheel; 702. Telescopic spring; 8. Rotating rod; 801. Sprocket; 802. Gear; 803. Transmission toothed belt; 804. Sweeping bar; 805. Sweeping disc; 806. Sweeping brush. Detailed Implementation

[0029] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0030] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] refer to Figures 1 to 10As shown in the figure, an ultrasonic testing device for bridge cable saddle friction plate welds provided in this embodiment of the invention includes a scanning box 1 and a fixing frame 7. An auxiliary wheel 701 is fixedly mounted on the fixing frame 7. Side wheel frames 2 are fixedly connected to both sides of the scanning box 1, and guide wheels 305 are mounted on the side wheel frames 2. A mounting plate 4 is rotatably connected to the top of the scanning box 1, and a probe frame 401 is fixedly connected to the mounting plate 4. An ultrasonic probe 402 is fixedly mounted at the end of the probe frame 401. An adjustment mechanism is installed inside the scanning box 1. The structure includes an adjusting cylinder 5 and a take-up wheel 6. The adjusting cylinder 5 is fixedly connected to the mounting plate 4. A take-up chain belt 601 is fixedly connected between the middle of the take-up wheel 6 and the auxiliary wheel 701. A cleaning mechanism is installed on the bottom back of the scanning box 1. The cleaning mechanism includes a rotating rod 8 and a cleaning rod 804. The take-up wheel 6 can drive the scanning box 1 to move through the take-up chain belt 601. The take-up chain belt 601 can drive the cleaning rod 804 to rotate through the rotating rod 8. The top of the take-up wheel 6 can drive the adjusting cylinder 5 to rotate through an elastic push block.

[0032] By adopting the above scheme, the adjustment mechanism enables the winding wheel 6 to wind up the winding chain belt 601, thereby moving the scanning box 1 and the ultrasonic probe 402 to scan and inspect the weld seam on one side. On the other hand, when the winding wheel 6 reverses, it drives the winding chain belt 601 to extend. Then, through the cooperation of the winding wheel 6 and the elastic push block, the adjusting cylinder 5 is rotated, which in turn drives the probe frame 401 to rotate to the weld seam on the other side and move it to inspect the weld seam on the other side. The adjustment is flexible and saves time and effort. At the same time, the cooperation between the winding chain belt 601 and the cleaning mechanism enables the cleaning rod 804 to rotate and clean the dust, soil particles and other obstructions attached to the weld seam, thereby effectively improving the accuracy and efficiency of the inspection.

[0033] Specifically, a support ring 105 and a motor 106 are fixedly connected to the bottom of the scanning box 1. The bottom of the take-up wheel 6 is connected to the support ring 105 through a bearing. The output end of the motor 106 is fixedly connected to the middle of the take-up wheel 6. Two stop blocks 103 are fixedly connected to the top of the scanning box 1. The two stop blocks 103 are symmetrically arranged on both sides of the adjusting cylinder 5.

[0034] The above scheme facilitates the stable installation of the winding wheel 6. The winding wheel 6 can be rotated by starting the motor 106, which is convenient to use. The stop block 103 can limit the rotation angle of the adjusting cylinder 5, which in turn facilitates the positioning of the rotation position of the probe frame 401. This is beneficial for the ultrasonic probe 402 to be aligned with the weld on the other side, thereby facilitating the scanning box 1 to drive the probe frame 401 to perform stable scanning and testing work.

[0035] Specifically, the top of the adjusting cylinder 5 is fixedly connected to the mounting plate 4, the bottom of the adjusting cylinder 5 is separated from the winding wheel 6 by a gap, the adjusting cylinder 5 is connected to the scanning box 1 through a bearing, a lever plate 501 is fixedly connected to the side wall of the adjusting cylinder 5, and an upper lever block 502 and a lower lever block 503 are fixedly connected to the upper and lower ends of the lever plate 501, respectively. The stop block 103 can limit and abut against the upper lever block 502, and the elastic push block can slide and abut against the lower lever block 503.

[0036] Using the above scheme, it is convenient for the adjusting cylinder 5 to drive the mounting plate 4, probe holder 401, and ultrasonic probe 402 to rotate stably. When inspecting the weld on one side, the rotating take-up wheel 6 drives the elastic push block to rotate. When the elastic push block rotates to the position of the lower push block 503, the stop block 103 blocks the upper push block 502, thus restricting the push plate 501. Therefore, the elastic push block will slide past the lower push block 503 until the inspection of the weld on one side is completed. When inspecting the weld on the other side... During testing, the take-up reel 6 reverses, causing the elastic pusher to push the lower pusher block 503 in the opposite direction. This causes the upper pusher block 502 to disengage from the stop block 103, resulting in the pusher plate 501 driving the adjusting cylinder 5 and the probe holder 401 to rotate until the upper pusher block 502 rotates to fit against the stop block 103 on the other side. At this point, the probe holder 401 can be aligned with the weld seam on the other side. The take-up reel 6 continues to reverse, and the elastic pusher will slide past the lower pusher block 503 again until the weld seam scanning and inspection work on the other side is completed.

[0037] Specifically, the upper push block 502 is fixedly connected to both sides with a second magnetic block 504, the stop block 103 is fixedly connected to the front with a first magnetic block 104, the first magnetic block 104 and the second magnetic block 504 are attracted and fixed together, and the ends of the lower push block 503 and the elastic push block are both arranged in an arc shape.

[0038] By adopting the above scheme, when the upper push block 502 is in contact with the stop block 103, the second magnetic block 504 and the first magnetic block 104 can be used to attract and fix them together, which in turn facilitates the stable positioning of the rotating position of the probe holder 401, so as to ensure that the ultrasonic probe 402 is stably aligned with the weld for inspection, which is conducive to ensuring the quality of the scanning and inspection work.

[0039] Specifically, the other end of the elastic push block is fixedly connected to a support block 602, the support block 602 is fixedly connected to the top of the take-up reel 6, the elastic push block includes a spring ring 604, a support spring 605 is fixedly connected inside the spring ring 604, and a rubber pad 603 is sleeved and fixed on the outer wall of the spring ring 604.

[0040] The above solution effectively improves the stability of the elastic push block connection structure, facilitates the synchronous rotation of the elastic push block driven by the winding wheel 6, ensures the elasticity and support strength of the elastic push block, increases the friction between the elastic push block and the lower push block 503, and thus facilitates the elastic push block to push the lower push block 503 and slide over the lower push block 503, making it flexible to use.

[0041] Specifically, both sides of the winding chain belt 601 are provided with telescopic springs 702. The two ends of the telescopic springs 702 are respectively fixedly connected to the scanning box 1 and the fixing frame 7. The rotating rod 8 is connected to the scanning box 1 through a bearing. A sprocket 801 is sleeved and fixed on the rotating rod 8. The sprocket 801 and the winding chain belt 601 are meshed and connected. The lower end of the rotating rod 8 extends through to the bottom of the scanning box 1.

[0042] Using the above scheme, the fixing frame 7 is installed on the outside of the scanning box 1 and fixed at a suitable height. For ease of use, the staff can also hold the fixing frame 7 by hand, making it flexible to use. When the winding wheel 6 rotates, the winding chain belt 601 winds up, and the scanning box 1 moves along with it and squeezes the telescopic spring 702. When the winding wheel 6 reverses, the telescopic spring 702 gradually returns to its original position, pushing the scanning box 1 to move in the opposite direction, and also causing the winding chain belt 601 to gradually extend, thus facilitating the movement and use of the scanning box 1. In addition, during the movement of the winding chain belt 601, the sprocket 801 and the rotating rod 8 can be driven to rotate synchronously.

[0043] Specifically, the sweeping rod 804 is connected to the bottom of the scanning box 1 via bearings. There are two sweeping rods 804 located at both ends of the bottom of the scanning box 1. Gears 802 are sleeved and fixed on both the rotating rod 8 and the sweeping rod 804. The gears 802 are connected to each other by a transmission belt 803. A sweeping disc 805 is sleeved and fixed on the bottom of the sweeping rod 804. A sweeping brush 806 is fixedly connected to the sweeping disc 805.

[0044] By adopting the above scheme, the rotating rod 8 can drive the cleaning rod 804 to rotate synchronously, which in turn drives the cleaning disc 805 and the cleaning brush 806 to rotate, thereby realizing the cleaning operation of the weld seam, effectively ensuring the accuracy and quality of the inspection, and improving the efficiency of the inspection work.

[0045] Specifically, a fixing rod 201 is inserted through the inside of the side wheel frame 2. The fixing rod 201 is provided with a threaded groove 202, which is threadedly connected to the side wheel frame 2. A support cylinder 3 is sleeved and fixed on the fixing rod 201. A sliding rod 303 is slidably inserted inside the support cylinder 3. The shaft of the guide wheel 305 is connected to one end of the sliding rod 303 through a bearing. A rubber sleeve 306 is sleeved and fixed on the guide wheel 305.

[0046] By adopting the above scheme, the guide wheel 305 can be pressed against the friction plate during movement. At the same time, the fixing rod 201 can be rotated appropriately according to the distance between the friction plates, that is, the guide wheel 305 can be rotated to a certain angle to facilitate better contact and tightness with the friction plate. The adjustment is flexible and has a wide range of applications. It helps to avoid the phenomenon of the scanning box 1 deviating during movement, thereby further improving the detection accuracy and quality.

[0047] Specifically, the other end of the slide rod 303 is fixedly connected to the inner end of the support cylinder 3 via a tightening spring 302. Limiting sliders 304 are fixedly connected to both sides of the other end of the slide rod 303. A limiting groove 301 is provided on the side wall of the support cylinder 3, and the limiting slider 304 slides along the limiting groove 301.

[0048] The above solution facilitates elastic support for the guide wheel 305, resulting in high stability.

[0049] Specifically, the top of the scanning box 1 is provided with a semi-annular tube passage 101, and the front of the scanning box 1 is provided with a tube hole 102.

[0050] The above scheme facilitates the insertion of the coupling water conduit into the through hole 102 and through channel 101 and its binding and fixing with the probe holder 401, making it convenient to spray coupling water onto the weld to be tested for detection. When the probe holder 401 is rotated, the coupling water conduit moves accordingly. The coupling water conduit can be made of plastic hose or spring hose, which is convenient to use.

[0051] Working principle of the invention: In use, the fixing frame 7 is installed on the outside of the scanning box 1 and fixed at a suitable height. For ease of use, the staff can also hold the fixing frame 7 by hand for flexible use. One end of the coupling water conduit is connected to the external water tank, which is equipped with a water pump. The other end of the coupling water conduit is bound to the probe frame 401 and aligned with the weld. Then, the scanning box 1 is placed between the friction plates to be tested. The guide wheel 305 abuts against the side wall of the two adjacent friction plates, and the bottom wheel of the scanning box 1 abuts against the saddle. According to the distance between the friction plates, the fixing rod 201 is rotated appropriately, that is, the guide wheel 305 is adjusted to rotate to a certain angle to facilitate better contact and tightness with the friction plates, which helps to avoid the phenomenon of the scanning box 1 deviating during the movement.

[0052] Subsequently, the start motor 106 drives the winding wheel 6 to rotate, and the winding chain belt 601 performs winding motion. The scanning box 1 moves accordingly. The winding chain belt 601 drives the sprocket 801, rotating rod 8, cleaning rod 804, cleaning disc 805 and cleaning brush 806 to rotate, cleaning the obstructions at the weld. Coupling water is sprayed into the weld. The moving probe frame 401 drives the ultrasonic probe 402 to inspect the weld. At the same time, the elastic push block rotates and passes over the lower push block 503 until the inspection of the weld on one side is completed.

[0053] When inspecting the weld on the other side, the take-up wheel 6 reverses, causing the elastic pusher to push the lower pusher block 503 in the opposite direction, which in turn causes the upper pusher block 502 to disengage from the stop block 103. This causes the pusher plate 501 to rotate the adjusting cylinder 5 and the probe holder 401 until the upper pusher block 502 rotates to be in contact with the stop block 103 on the other side. This causes the probe holder 401 to rotate to the weld on the other side and be positioned. The take-up wheel 6 continues to reverse, and the elastic pusher will slide past the lower pusher block 503. The scanning box 1 drives the probe holder 401 to move in the opposite direction until the weld inspection on the other side is completed. The operation is flexible.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic testing device for friction plate welds of bridge cables, comprising a scanning box (1) and a fixing frame (7), characterized in that: An auxiliary wheel (701) is fixedly installed on the fixed frame (7). Side wheel frames (2) are fixedly connected to both sides of the scanning box (1). Guide wheels (305) are installed on the side wheel frames (2). A mounting plate (4) is rotatably connected to the top of the scanning box (1). A probe frame (401) is fixedly connected to the mounting plate (4). An ultrasonic probe (402) is fixedly installed at the end of the probe frame (401). An adjustment mechanism is installed inside the scanning box (1). The adjustment mechanism includes an adjustment cylinder (5) and a winding wheel (6). The adjustment cylinder (5) and the winding wheel (6) are connected to the scanning box (1). The mounting plate (4) is fixedly connected, and a winding chain belt (601) is fixedly connected between the middle of the winding wheel (6) and the auxiliary wheel (701). A cleaning mechanism is installed on the bottom back of the scanning box (1). The cleaning mechanism includes a rotating rod (8) and a cleaning rod (804). The winding wheel (6) can drive the scanning box (1) to move through the winding chain belt (601). The winding chain belt (601) can drive the cleaning rod (804) to rotate through the rotating rod (8). The top of the winding wheel (6) can drive the adjusting cylinder (5) to rotate through the elastic push block.

2. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 1, characterized in that: The scanning box (1) has a support ring (105) and a motor (106) fixedly connected to its inner bottom. The bottom of the take-up wheel (6) is connected to the support ring (105) through a bearing. The output end of the motor (106) is fixedly connected to the middle of the take-up wheel (6). The scanning box (1) has two stop blocks (103) fixedly connected to its inner top. The two stop blocks (103) are symmetrically arranged on both sides of the adjusting cylinder (5).

3. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 2, characterized in that: The top of the adjusting cylinder (5) is fixedly connected to the mounting plate (4), and the bottom of the adjusting cylinder (5) is separated from the winding wheel (6) by a gap. The adjusting cylinder (5) is connected to the scanning box (1) through a bearing. A dial plate (501) is fixedly connected to the side wall of the adjusting cylinder (5). An upper dial block (502) and a lower dial block (503) are fixedly connected to the upper and lower ends of the dial plate (501) respectively. The stop block (103) can limit and abut against the upper dial block (502), and the elastic push block can slide and abut against the lower dial block (503).

4. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 3, characterized in that: The upper push block (502) is fixedly connected to two sides with a second magnetic block (504), and the stop block (103) is fixedly connected to the front side with a first magnetic block (104). The first magnetic block (104) and the second magnetic block (504) are attracted and fixed together. The ends of the lower push block (503) and the elastic push block are both arranged in an arc shape.

5. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 1, characterized in that: The other end of the elastic push block is fixedly connected to a support block (602), the support block (602) is fixedly connected to the top of the winding wheel (6), the elastic push block includes a spring ring (604), a support spring (605) is fixedly connected inside the spring ring (604), and a rubber pad (603) is sleeved and fixed on the outer wall of the spring ring (604).

6. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 1, characterized in that: Both sides of the winding chain belt (601) are provided with telescopic springs (702). The two ends of the telescopic springs (702) are fixedly connected to the scanning box (1) and the fixing frame (7) respectively. The rotating rod (8) is connected to the scanning box (1) through a bearing. A sprocket (801) is sleeved and fixed on the rotating rod (8). The sprocket (801) and the winding chain belt (601) are meshed and connected. The lower end of the rotating rod (8) extends through to the bottom of the scanning box (1).

7. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 1, characterized in that: The sweeping rod (804) is connected to the bottom of the scanning box (1) by a bearing. There are two sweeping rods (804) located at both ends of the bottom of the scanning box (1). Gears (802) are sleeved and fixed on both the rotating rod (8) and the sweeping rod (804). The gears (802) are connected to each other by a transmission belt (803). A sweeping disc (805) is sleeved and fixed on the bottom of the sweeping rod (804). A sweeping brush (806) is fixedly connected on the sweeping disc (805).

8. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 1, characterized in that: A fixing rod (201) is inserted through the inside of the side wheel frame (2). The fixing rod (201) is provided with a threaded groove (202). The threaded groove (202) is threadedly connected to the side wheel frame (2). A support cylinder (3) is sleeved and fixed on the fixing rod (201). A sliding rod (303) is slidably inserted inside the support cylinder (3). The shaft of the guide wheel (305) is connected to one end of the sliding rod (303) through a bearing. A rubber sleeve (306) is sleeved and fixed on the guide wheel (305).

9. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 8, characterized in that: The other end of the slide rod (303) is fixedly connected to the inner end of the support cylinder (3) by a tightening spring (302). Limiting sliders (304) are fixedly connected to both sides of the other end of the slide rod (303). A limiting groove (301) is opened on the side wall of the support cylinder (3), and the limiting slider (304) slides along the limiting groove (301).

10. The ultrasonic testing device for bridge cable saddle friction plate welds as described in claim 1, characterized in that: The top of the scanning box (1) is provided with a semi-annular tube passage (101), and the front of the scanning box (1) is provided with a tube hole (102).

Images