A flaw detection support and an ultrasonic flaw detector

Abstract

The present invention relates to a flaw detection support and an ultrasonic flaw detector. The flaw detection support includes a hanging frame assembly, a sliding frame assembly, and a sliding shoe probe assembly. The hanging frame assembly includes at least one hanging frame guiding assembly, and the hanging frame guiding assembly includes a guiding shaft and a first spring, with the guiding shaft vertically arranged. The sliding frame assembly includes a sliding frame plate assembly and at least one sliding frame guiding assembly. The first spring and the sliding frame plate assembly are sleeved on the guiding shaft. The sliding frame guiding assembly includes a guiding shaft and a second spring, with the guiding shaft horizontally fixed on the sliding frame plate assembly, and the second spring and the sliding shoe probe assembly are sleeved on the guiding shaft. The beneficial effects are as follows: The sliding frame assembly ensures that the sliding shoe probe assembly fits downward against the rail. The sliding shoe probe assembly can move horizontally along the guiding shaft, enabling the sliding shoe probe assembly to tightly adhere to the rail from the side. The sliding shoe probe assembly always reliably adheres to the preset flaw detection position on the rail along with the curve change of the inner side of the rail.

Description

Technical Field

[0001] The present invention relates to the field of ultrasonic flaw detection, and particularly to a flaw detection bracket and an ultrasonic flaw detector. Background Art

[0002] The tram is a common urban rail transit mode. Most of its running lines adopt channel steel rails (such as the track structures described in patents CN201310172048.6 or CN201910694525.2). Compared with ordinary I-shaped steel rails, due to their different geometric dimensions, the existing ultrasonic flaw detectors or flaw detection brackets for I-shaped steel rails cannot fit the channel steel rails, which is not convenient for ultrasonic detection. Therefore, there has been no special non-destructive testing equipment for the track lines of this type of steel rail for a long time. Although trams have advantages such as light load, slow speed, and long rail life, since the train wheel flanges always run along the special rail grooves of the channel steel rails, and the snake-like swing of the train left and right during operation also relies on the interaction between the wheel flanges and the main stress points of the rail head (the outer part of the rail groove in the rail head), if left unaddressed and the channel steel rails are not flaw detected, it threatens the safety of urban rail transit and there must be certain potential safety hazards.

[0003] Based on the above considerations, developing a double-rail type channel rail flaw detector for ultrasonic flaw detection of channel steel rails has become a trend in the industry development, and the flaw detection bracket for the double-rail type channel rail flaw detector has become the key point. The present invention provides a flaw detection bracket for a double-rail type channel rail ultrasonic flaw detector to fill the blank in the field of flaw detection of this type of channel steel rail. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to flaw detect a double-rail type channel rail.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: A flaw detection bracket includes a hanging bracket assembly, a sliding bracket assembly, and a sliding shoe probe assembly.

[0006] The hanging bracket assembly includes at least one hanging bracket guiding assembly. The hanging bracket guiding assembly includes a guiding shaft and a first spring, and the guiding shaft is vertically arranged.

[0007] The sliding bracket assembly includes a sliding bracket plate assembly and at least one sliding bracket guiding assembly. The first spring and the sliding bracket plate assembly are sleeved on the guiding shaft. The first spring exerts a downward force on the sliding bracket plate assembly. The sliding bracket guiding assembly includes a guiding shaft and a second spring. The guiding shaft is horizontally fixed on the sliding bracket plate assembly. The second spring and the sliding shoe probe assembly are sleeved on the guiding shaft. The second spring exerts a force on the sliding shoe probe assembly towards the side of the flaw detection bracket.

[0008] The beneficial effects of the present invention are as follows: The carriage assembly can slide up and down along the guide shaft, and the first spring applies a downward pressure to the carriage assembly, so that the carriage assembly drives the slider probe assembly to automatically adjust longitudinally along the guide shaft, ensuring that the slider probe assembly fits tightly against the rail downward. The slider probe assembly can move horizontally along the guide shaft, and the second spring applies a force to the slider probe assembly toward the flaw detection bracket side, so that the slider probe assembly fits tightly against the rail from the side. The slider probe assembly always reliably fits at the preset flaw detection position of the rail along with the curve change of the inner side of the rail.

[0009] On the basis of the above technical solution, the present invention can be further improved as follows.

[0010] Further, the hanging bracket assembly further includes a hanging bracket plate, both ends of the guide shaft are fixedly connected to the hanging bracket plate, a locking striker is fixedly arranged on the carriage plate assembly, a safety lock is fixedly arranged on the hanging bracket plate, the carriage assembly can slide along the guide shaft to the flaw detection position or the non-flaw detection position, and at the non-flaw detection position, the locking striker is detachably clamped with the safety lock.

[0011] The beneficial effect of adopting the above further solution is that at the non-flaw detection position, the locking striker is clamped with the safety lock, so that the slider probe assembly is far away from the rail, avoiding bumping and damage.

[0012] Further, the carriage assembly further includes a retracting handle and a retracting shaft, a retracting handle pin shaft is further fixed on the hanging bracket plate, the middle of the retracting handle is hinged to the retracting shaft, the retracting shaft is vertically installed on the carriage plate assembly, one end of the retracting handle has a strip-shaped limiting groove, and the limiting groove is slidably sleeved outside the retracting handle pin shaft.

[0013] The beneficial effect of adopting the above further solution is that the position of the carriage assembly is adjusted through the retracting handle. The limiting groove of the retracting handle is located at one end thereof. By pulling the other end of the retracting handle, it can be rotated around the hinge point, so as to lift or lower the carriage assembly, for changing the working state of the carriage assembly, and the operation is labor-saving.

[0014] Further, at the flaw detection position, the retracting handle is detachably connected to the hanging bracket plate.

[0015] The beneficial effect of adopting the above further solution is that during the flaw detection work, to avoid the retracting handle moving randomly, the retracting handle is connected to the hanging bracket plate, and when it is necessary to use the retracting handle to switch the state, the retracting handle is then disconnected from the hanging bracket plate.

[0016] Further, it further includes a follower retracting and deploying frame group fixed to the sliding shoe probe assembly. The retracting and deploying shaft is rotatably installed on the sliding frame plate assembly, and a retracting and deploying cam is also fixed on the retracting and deploying shaft. In the non-detection position, the retracting and deploying cam abuts against the follower retracting and deploying frame group, and makes the side of the sliding shoe probe assembly close to the detection bracket, and the retracting and deploying handle pin shaft is located in the limiting groove. In the detection position, the retracting and deploying cam is separated from the follower retracting and deploying frame group.

[0017] The beneficial effect of adopting the above further solution is that: the retracting and deploying cam cooperates with the follower retracting and deploying frame group, and during the process of switching to the non-detection position, the sliding shoe probe assembly is simultaneously retracted inward to avoid bumping the probe during non-detection.

[0018] Further, the sliding shoe probe assembly includes a probe sliding frame assembly, traveling wheels, and a probe assembly. The probe sliding frame assembly is sleeved on the guiding shaft. There is at least one traveling wheel, and all of them are rotatably arranged on the probe sliding frame assembly. There is at least one probe assembly, and all of them are installed on the probe sliding frame assembly.

[0019] The beneficial effect of adopting the above further solution is that: by setting multiple probe assemblies, full-coverage detection of grooved steel rails can be achieved.

[0020] Further, the probe assembly includes a probe spring assembly, a probe mounting assembly, and a probe. The probe sliding frame assembly has a vertically strip-shaped probe guiding hole. The probe mounting assembly slides in the probe guiding hole. The probe is fixedly arranged on the probe mounting assembly. The probe spring assembly is fixedly arranged on the probe sliding frame assembly and applies a downward force to the probe mounting assembly.

[0021] The beneficial effect of adopting the above further solution is that: the probe spring assembly presses down the probe mounting assembly, so that the probe always tightly adheres to the steel rail.

[0022] Further, the probe mounting assembly includes a probe hanging rack, a probe guiding block, a probe guiding shaft, and a probe adjusting shaft. The probe guiding block slides up and down in the probe guiding hole. The probe guiding shaft and the probe adjusting shaft are both horizontally arranged. The probe guiding shaft is fixedly connected to the probe guiding block. The probe adjusting shaft is rotatably connected to the probe guiding block. The probe hanging rack is in threaded transmission with the probe adjusting shaft and is slidably connected to the probe guiding shaft. The probe is fixedly connected to the probe hanging rack.

[0023] The beneficial effect of adopting the above further solution is that: the probe hanging rack can move horizontally, and the distance between the probe and the steel rail in the horizontal direction can be adjusted.

[0024] Furthermore, the sliding shoe probe assembly further includes a follow-up guiding assembly. There is at least one follow-up guiding assembly, which is fixedly arranged on the probe sliding frame assembly and is located on one side of the flaw detection bracket.

[0025] The beneficial effect of adopting the above further solution is that during flaw detection, the follow-up guiding assembly is placed in the trough-shaped rail groove. When the flaw detection bracket moves along the track, the follow-up guiding assembly fits the inner side surface of the rail groove to provide guidance, enabling the flaw detection bracket to pass through the turnout smoothly.

[0026] The beneficial effect of the present invention lies in that the flaw detection bracket has functions of longitudinal limit, longitudinal automatic adjustment, lateral guiding follow-up, and probe position adjustment. It is used to solve the problem that the sliding shoe type probe does not fit tightly with the rail head of the trough-shaped steel rail due to the irregular outer dimension of the trough rail, thus affecting the flaw detection effect. The flaw detection bracket enables the probe to always reliably fit at the preset flaw detection position of the rail along with the curve change of the inner side surface of the rail. When passing through the turnout, the guiding mechanism of the follow-up part can enable the probe to pass through smoothly. It can also quickly lift the probe off the top surface of the rail in the non-working state to avoid collision damage.

[0027] An ultrasonic flaw detector includes the above-mentioned flaw detection bracket.

[0028] Furthermore, the ultrasonic flaw detector includes a flaw detector frame. There are two flaw detection brackets, and the two flaw detection brackets are respectively fixedly arranged on both sides of the flaw detector frame. Specifically, the hanging plate is fixedly connected to the flaw detector frame.

[0029] The flaw detection bracket of the present invention is particularly suitable for a double-rail trough-shaped rail flaw detector used for ultrasonic flaw detection of trough-shaped steel rails. Brief Description of the Drawings

[0030] Figure 1 is a three-dimensional view of the flaw detection bracket of the present invention;

[0031] Figure 2 is a structural diagram of the hanging component of the present invention;

[0032] Figure 3 is a structural diagram of the sliding frame component of the present invention;

[0033] Figure 4 is a structural diagram of the retracting and releasing handle of the present invention;

[0034] Figure 5 is a structural diagram of the sliding shoe probe component of the present invention;

[0035] Figure 6 is a structural diagram of the probe sliding frame component of the present invention;

[0036] Figure 7 is a structural diagram of the 37-0-37 probe component of the present invention;

[0037] Figure 8 It is the structural diagram of the 70-70 probe assembly of the present invention;

[0038] Figure 9 It is the structural diagram of the 70-degree inclined probe assembly of the present invention;

[0039] Figure 10 It is the structural diagram of the walking wheel of the present invention;

[0040] Figure 11 It is the structural diagram of the follow-up guiding assembly of the present invention;

[0041] Figure 12 It is the structural diagram of the side guiding wheel assembly of the present invention;

[0042] Figure 13 It is the structural diagram of the brush assembly of the present invention;

[0043] Figure 14 It is the structural diagram of the follow-up retractable frame group of the present invention.

[0044] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0045] 100, hanging frame assembly, 101, guide shaft, 102, first spring, 103, hanging frame plate, 104, safety lock, 105, retractable handle pin shaft, 106, knob screw, 107, lock frame, 108, magnet, 109, guide shaft support, 110, first gasket,

[0046] 200, sliding frame assembly, 201, guide shaft, 202, second spring, 203, locking block, 204, retractable handle, 205, retractable shaft, 206, retractable cam, 207, inner sliding frame plate, 208, linear bearing fixing seat assembly, 209, sliding frame plate fixing shaft, 210, water supply pipe, 211, outer sliding frame plate, 212, handle suction fixing block,

[0047] 300. Shoe probe assembly, 301. Probe carriage assembly, 3011. Inner probe carriage, 3012. Outer probe carriage, 302. Travel wheel, 3021. Travel wheel shaft, 3022. Travel wheel bearing, 303. Probe assembly, 3031. 37-0-37 probe assembly, 3032. 70-70 probe assembly, 3033. 70-degree inclined probe assembly, 304. Probe hanger, 305. Probe guide block, 306. Probe guide shaft, 307. Probe adjustment shaft, 308. Probe, 309. Follow-up guide assembly, 3091. Guide block, 3092. Side guide wheel assembly, 310. Junction box, 311. Brush assembly, 3111. Connecting plate, 3112. Brush, 3113. Brush baffle, 312. Sliding sleeve, 313. Upper spring seat of probe, 314. Probe fixing bracket, 315. Adjusting handle, 316. Guide shoe, 317. Probe pipe joint

[0048] 400. Follow-up retracting and deploying frame group. Detailed implementation mode

[0049] The principles and features of the present invention will be described below. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0050] As Figures 1-14 shown, this embodiment provides a flaw detection bracket, which includes a hanger assembly 100, a carriage assembly 200, and a shoe probe assembly 300.

[0051] The hanger assembly 100 includes at least one hanger guide assembly. The hanger guide assembly includes a guide shaft 101 and a first spring 102. The guide shaft 101 is vertically arranged.

[0052] The carriage assembly 200 includes a carriage plate assembly and at least one carriage guide assembly. The first spring 102 and the carriage plate assembly are sleeved on the guide shaft 101. The first spring 102 exerts a downward force on the carriage plate assembly. The carriage guide assembly includes a guide shaft 201 and a second spring 202. The guide shaft 201 is horizontally fixed on the carriage plate assembly. The second spring 202 and the shoe probe assembly 300 are sleeved on the guide shaft 201. The second spring 202 exerts a force on the shoe probe assembly 300 towards one side of the flaw detection bracket.

[0053] Specifically, when there are two flaw detection brackets, the two flaw detection brackets are correspondingly arranged on two parallel tracks. Specifically, the second spring 202 exerts a force on the shoe probe assembly 300 towards the outside of the flaw detection bracket.

[0054] When the existing ultrasonic flaw detector detects an I-shaped steel rail, it only needs to press the detection wheel or probe against the top surface of the rail head. Since the structure of the I-shaped steel is symmetric, when the flaw detector moves along the rail, the probe of the flaw detector moves along with it while sticking to the upper part of the rail, and the detection is convenient. However, for a channel steel rail, its structure is asymmetric. During detection, not only does the probe need to move along the rail, but it also needs to be pressed against the inner side of the rail groove to detect damage to the rail head. With the existing ultrasonic flaw detection equipment, it is impossible to ensure the position of the probe in the rail groove. In this embodiment, the carriage assembly can slide up and down along the guide shaft 101, and the first spring 102 applies a downward pressure to the carriage assembly, so that the carriage assembly drives the slider probe assembly 300 to automatically adjust longitudinally along the guide shaft 101, ensuring that the slider probe assembly 300 fits downward against the rail. The slider probe assembly 300 can move horizontally along the guide shaft 201, and the second spring 202 applies a force to the slider probe assembly 300 towards the outside of the flaw detection bracket, so that the slider probe assembly 300 fits tightly against the rail from the side. The slider probe assembly 300 always reliably fits at the preset flaw detection position of the rail along with the curve change of the inner side surface of the rail groove.

[0055] As a further solution of this embodiment, the hanging bracket assembly 100 further includes a hanging bracket plate 103. Both ends of the guide shaft 101 are fixedly connected to the hanging bracket plate 103. A locking bumper 203 is fixedly provided on the carriage plate assembly, and a safety lock 104 is fixedly provided on the hanging bracket plate 103. The carriage assembly 200 can slide along the guide shaft 101 to the flaw detection position or the non-flaw detection position, and at the non-flaw detection position, the locking bumper 203 is detachably clamped with the safety lock 104.

[0056] Specifically, as Figure 1 and Figure 2 shown, the hanging bracket assembly 100 further includes a guide shaft support 109. Both ends of the guide shaft 101 are respectively fixed on the two guide shaft supports 109, and the guide shaft support 109 is fixedly connected to the hanging bracket plate 103. The first spring 102, the first gasket 110 and the carriage plate assembly are sleeved on the guide shaft 101 from top to bottom in sequence. More specifically, there are two guide shafts 101.

[0057] Specifically, the guide shaft 101 is fixedly provided on the outside of the hanging bracket plate 103.

[0058] Specifically, as Figure 2 shown, the hanging bracket assembly 100 further includes a lock bracket 107. The lock bracket 107 is fixedly connected to the hanging bracket plate 103, and the safety lock 104 is fixed on the lock bracket 107.

[0059] Specifically, as Figure 2As shown, the safety lock 104 has an inclined locking tongue. When switched to the non-detection position, the carriage plate assembly is lifted upward. The locking striker 203 on the carriage plate assembly moves upward accordingly, and the locking tongue of the safety lock 104 is pushed into the housing of the safety lock 104. The locking striker 203 continues to move upward, and the locking tongue of the safety lock 104 pops out again under the action of the locking tongue spring and catches the locking striker 203 to prevent the carriage plate assembly from falling. When switched to the detection position, the knob of the safety lock 103 is rotated to retract the locking tongue, and the carriage plate assembly moves downward under the action of gravity and the elastic force of the first spring 102, so as to tightly adhere to the track downward. In the detection position, the locking striker 203 is separated from the safety lock 104.

[0060] As a further solution of this embodiment, the carriage assembly 200 further includes a retracting handle 204 and a retracting shaft 205. A retracting handle pin shaft 105 is also fixed on the hanging plate 103. The middle of the retracting handle 204 is hinged to the retracting shaft 205. The retracting shaft 205 is vertically installed on the carriage plate assembly. One end of the retracting handle 204 has a strip-shaped limiting groove, and the limiting groove is slidably sleeved outside the retracting handle pin shaft 105.

[0061] Specifically, as Figure 3 shown, the carriage plate assembly includes an inner carriage plate 207, an outer carriage plate 211 and a carriage plate fixing shaft 209. The inner carriage plate 207 and the outer carriage plate 211 are both arranged in parallel with the hanging plate 103. Both ends of the carriage plate fixing shaft 209 are fixedly connected to the inner carriage plate 207 and the outer carriage plate 211 respectively. At least one carriage plate fixing shaft 209 is provided.

[0062] Specifically, the inner carriage plate 207 is sleeved on the guide shaft 101. Further, a linear bearing seat assembly 208 is fixed on the inner carriage plate 207, and the guide shaft 101 slidably penetrates through the linear bearing seat assembly 208. Two linear bearing seat assemblies 208 and two guide shafts 101 are provided, and the linear bearing seat assemblies 208 and the guide shafts 101 are arranged in one-to-one correspondence.

[0063] Specifically, both ends of the guide shaft 201 in each carriage guiding assembly are fixedly connected to the inner carriage plate 207 and the outer carriage plate 211 respectively.

[0064] As a further solution of this embodiment, in the detection position, the retracting handle 204 is detachably connected to the hanging plate 103.

[0065] Specifically, as Figure 3 and Figure 4As shown, a magnet 108 is fixed on the rack plate 103 , a handle suction block 212 is fixed on the retractable handle 204 , and the retractable handle 204 is detachably magnetically connected to the rack plate 103 via the handle suction block 212 and the magnet 108 .

[0066] Specifically, the magnet 108 may be an externally threaded polyurethane buffer magnet, or other common forms of magnets.

[0067] In this embodiment, the retractable shaft 205 is fixedly connected to the inner slide plate 207, and the retractable handle 204 is fixedly connected to the inner slide plate 207. Figure 1 The retractable handle pin 105 is perpendicular to the rack plate 103 and extends from the rack plate 103 to the outside of the rack plate 103. Alternatively, preferably, as an alternative to this embodiment, the retractable shaft 205 is rotatably disposed on the inner slide plate 207, such as Figure 2 As shown, the retractable handle pin 105 is horizontally fixed to the front end or rear end of the rack plate 103 and extends forward or backward from the end of the rack plate 103. In the non-detection position, the retractable handle 204 rotates to the limit groove and slides outside the retractable handle pin 105; in the detection position, the retractable handle 204 rotates to the handle suction block 212 and the magnet 108 for magnetic connection. Alternatively, in the above alternative solution, Figure 2 On the basis of, the installation positions of the retractable handle pin 105 and the magnet 108 can be exchanged, that is, the retractable handle pin 105 is fixed to the outside of the rack plate 103, and the magnet 108 is fixed to the front end or rear end of the rack plate 103.

[0068] As a further solution of this embodiment, it also includes a follow-up retractable rack group 400 fixed on the sliding shoe probe assembly 300, the retractable shaft 205 is rotatably mounted on the sliding frame plate assembly, and a retractable cam 206 is also fixed on the retractable shaft 205; in the non-flaw detection position, the retractable cam 206 abuts against the follow-up retractable rack group 400, and makes the sliding shoe probe assembly 300 close to one side of the flaw detection bracket, and the retractable handle pin 105 is located in the limiting groove; in the flaw detection position, the retractable cam 206 is separated from the follow-up retractable rack group 400.

[0069] Specifically, the retractable cam 206 is eccentrically fixed to the lower end of the retractable shaft 205. The follower retractable frame assembly 400 is fixed to the inner side of the sliding shoe probe assembly 300.

[0070] Specifically, Figure 1 and Figure 14As shown, the follower retractor assembly 400 is a 'C'-shaped frame, and its two ends are fixedly connected to the slider probe assembly 300. During the process of switching to the non-detection position, the retractor handle 204 rotates 90° around the midline of the retractor shaft 205, and the retractor cam 206 abuts against the follower retractor assembly 400 and pushes it to move horizontally.

[0071] As a further solution of this embodiment, the slider probe assembly 300 includes a probe slider assembly 301, a traveling wheel 302, and a probe assembly 303. The probe slider assembly 301 is sleeved on the guide shaft 201. There is at least one traveling wheel 302, and all of them are rotatably arranged on the probe slider assembly 301. There is at least one probe assembly 303, and all of them are installed on the probe slider assembly 301.

[0072] Specifically, as Figure 5 and Figure 6 shown, the probe slider assembly 301 includes a probe inner slider 3011 and a probe outer slider 3012. The probe inner slider 3011 and the probe outer slider 3012 are respectively fixed at both ends of the sliding sleeve 312. There are multiple sliding sleeves 312, and the sliding sleeves 312 are arranged in one-to-one correspondence with the guide shaft 201 and sleeved on the outside of the guide shaft 201. As one solution of this embodiment, both ends of the second spring 202 abut against the probe outer slider 3012 and the outer slider plate 211 respectively, and the elastic force of the second spring 202 pushes the probe slider assembly 301 towards the inside of the detection bracket. As another solution of this embodiment, both ends of the second spring 202 are fixedly connected to the probe inner slider 3011 and the inner slider plate 207 respectively, and the pulling force of the second spring 202 causes the probe slider assembly 301 to move towards the inside of the detection bracket.

[0073] Specifically, as Figure 10 shown, the traveling wheel 302 includes a traveling wheel shaft 3021, a traveling wheel bearing 3022, and a traveling wheel body. The traveling wheel body is rotatably sleeved on the traveling wheel shaft 3021 through the traveling wheel bearing 3022.

[0074] As a further solution of this embodiment, the probe assembly 303 includes a probe spring assembly, a probe mounting assembly, and a probe 308. The probe slider assembly 301 has a vertically strip-shaped probe guiding hole. The probe mounting assembly is slidably arranged in the probe guiding hole. The probe 308 is fixedly arranged on the probe mounting assembly. The probe spring assembly is fixedly arranged on the probe slider assembly 301 and applies a downward force to the probe mounting assembly.

[0075] Specifically, as Figure 5 、 Figures 7-9As shown, in this embodiment, the probe 308 can be one or more of a 37-0-37 probe assembly 3031, a 70-70 probe assembly 3032, and a 70-degree angle probe assembly 3033 to achieve multi-angle and full-coverage detection. The skid probe assembly 300 further includes a guide shoe 316 and a probe pipe joint 317. The probe assembly 303 is at least one, and the guide shoe 316 is at least one set corresponding to the probe assembly 303. Each set of the guide shoes 316 has two, and the two guide shoes 316 are respectively fixed to the front and rear ends of the probe 308 to ensure that the probe will not be damaged when passing through the rail gap. A water supply pipe 210 is also fixed on the carriage assembly 200. The probe pipe joint 317 is communicated with the water supply pipe 210, and the probe pipe joint 317 is used to spray a coupling liquid onto the detection area of the channel steel rail. Among them, the 37-0-37 probe assembly 3031 includes a forward 37° probe, a 0° probe, and another backward 37° probe fixed together in sequence. The 70-70 probe assembly 3032 includes two 70° probes. By setting probe assemblies at multiple angles, full-coverage detection of the web of the channel steel rail and the projection area towards the rail bottom is achieved through the primary ultrasonic wave, and full-coverage detection of the nuclear damage of the rail head of the channel steel rail is achieved through the secondary reflected ultrasonic wave.

[0076] As a further solution of this embodiment, the probe mounting assembly includes a probe hanger 304, a probe guide block 305, a probe guide shaft 306, and a probe adjustment shaft 307. The probe guide block 305 slides up and down in the probe guide hole. The probe guide shaft 306 and the probe adjustment shaft 307 are both horizontally arranged. The probe guide shaft 306 is fixedly connected to the probe guide block 305. The probe adjustment shaft 307 is rotatably connected to the probe guide block 305. The probe hanger 304 is in threaded transmission with the probe adjustment shaft 307 and is slidably connected to the probe guide shaft 306. The probe 308 is fixedly connected to the probe hanger 304.

[0077] Specifically, two of the probe guide blocks 305 are provided in each probe assembly 303. Corresponding probe guide holes are provided on both the inner probe carriage 3011 and the outer probe carriage 3012. The two probe assemblies 303 are respectively arranged in the two probe guide holes. Both ends of the probe guide shaft 306 are fixedly connected to the two probe guide blocks 305. Both ends of the probe adjustment shaft 307 are rotatably connected to the two probe guide blocks 305.

[0078] Specifically, a probe fixing frame 314 is fixedly provided at the lower end of the probe hanger 304. The probe 308 is fixed to the probe fixing frame 314.

[0079] Specifically, the probe spring assembly includes a probe spring, an upper spring seat 313 of the probe, and a lower spring seat of the probe. Two ends of the probe spring are respectively fixedly connected to the upper spring seat 313 of the probe and the lower spring seat of the probe. The upper spring seat 313 of the probe is fixed above or below the probe guide hole, and the lower spring seat of the probe is fixedly connected to the probe guide block 305.

[0080] Specifically, one end of the probe adjustment shaft 307 is fixedly provided with an adjustment handle 315. Rotating the adjustment handle 315 can drive the probe adjustment shaft 307 to rotate, so that the probe hanger 304 moves horizontally along the probe adjustment shaft 307 and the probe guide shaft 306, and further adjust the lateral position of the probe 308, so that the probe 308 moves inward or outward of the flaw detection bracket.

[0081] As a further solution of this embodiment, the sliding shoe probe assembly 300 further includes at least one follow-up guiding assembly 309. The follow-up guiding assembly 309 is fixedly arranged on the probe sliding frame assembly 301 and is located on one side of the flaw detection bracket.

[0082] Specifically, the follow-up guiding assembly 309 is fixed to the inner sliding frame 3011 of the probe.

[0083] Specifically, as Figure 5 、 Figure 11 and Figure 12 shown, the follow-up guiding assembly 309 includes a guiding block 3091 and two side guiding wheel assemblies 3092. The two side guiding wheel assemblies 3092 are respectively rotatably installed at both ends of the guiding block 3091. Each side guiding wheel assembly 3092 includes a side guiding shaft and a side guiding wheel. The side guiding shaft is fixedly connected to the guiding block 3091, and the side guiding wheel is sleeved on the side guiding shaft through a bearing.

[0084] As a further solution of this embodiment, the sliding shoe probe assembly 300 further includes a distribution box 310. The distribution box 310 is fixed to the probe sliding frame assembly 301 and is used to accommodate electric wires or cables.

[0085] As a further solution of this embodiment, as Figure 5 and Figure 13As shown, the sliding shoe probe assembly 300 further includes a brush assembly 311, and the number of the brush assemblies 311 is two, and the two brush assemblies 311 are respectively arranged at the front end and the rear end of the probe carriage assembly 301. The brush assembly 311 includes a connecting plate 3111, a brush 3112, and a brush baffle 3113. The connecting plate 3111 is fixedly connected to the probe carriage assembly 301, the brush 3112 is fixed below the connecting plate 3111, and the brush baffle 3113 is fixedly connected to the connecting plate 3111 and shielded on the side of the brush 3112 facing the walking wheel 302. The brush 3112 is used to clean the dust in the rail groove to avoid affecting the ultrasonic detection.

[0086] The working process of the flaw detection bracket of the present invention is as follows:

[0087] like Figure 1 As shown, when performing flaw detection, the retractable handle 204 is placed parallel to the bracket plate 103, and is adsorbed together with the magnet 108 on the bracket plate 103 through the handle suction block 212. Manually rotating the adjustment handle 315 can realize the linear movement of each probe 308 along the probe guide shaft 306, thereby adjusting the horizontal fitting position of the probe 308 on the head of the grooved rail. The flaw detection bracket moves along the grooved rail, and the probe spring assembly and the first spring 102 make the probe 308 close to the rail downward, while the second spring 202 makes the sliding shoe probe assembly 300 close to the inner side of the rail groove, and the probe is always close to the flaw detection position of the rail to ensure the flaw detection effect.

[0088] After the flaw detection work is completed, Figure 1 In the top view, the retracting handle 204 is rotated 90° clockwise, and the limiting groove of the retracting handle 204 is sleeved outside the retracting handle pin 105 of the rack plate 103. At the same time, the retracting cam 206 at the lower end of the retracting handle 204 will move the follow-up retracting frame assembly 400, and then move the sliding shoe probe assembly 300 horizontally. Pull up the retractable handle 204 vertically, the retractable handle 204 will be guided by the retractable handle pin 105, and rotate around the hinge with the retractable shaft 205, thereby moving upward with all the components except the hanger assembly 100. At this time, the locking block 203 fixed on the slide assembly 200 will also move upward until the locking block 203 pushes the lock tongue of the safety lock 104 on the hanger assembly 100 into the safety lock 104, and continues to move upward. The lock tongue of the safety lock 104 will automatically pop out again under the action of its own spring and get stuck in the positioning groove on the locking block 203. At this point, the lifting of the slide assembly 200 and the sliding shoe probe assembly 300 is completed, avoiding damage to the probe due to collision with obstacles when not performing flaw detection work.

[0089] The flaw detection support of the present invention is installed on both sides of a double-rail trough-shaped rail flaw detector. Through the adjustment functions of the carriage assembly 200 and the sliding shoe probe assembly 300, the probe 308 of each sliding shoe type is respectively adjusted to the preset flaw detection position of the rail. During the flaw detection process, through the follow-up and vertical automatic adjustment functions of the carriage assembly 200 and the sliding shoe probe assembly 300, the probe can always be reliably attached to the preset flaw detection position of the rail along with the curve change of the inner side of the rail. When passing through the turnout, the follow-up guiding assembly 309 can enable the probe to pass smoothly. When the flaw detection operation stops, the carriage assembly 200 and the sliding shoe probe assembly 300 can be lifted to a certain distance above the top surface of the rail head through the longitudinal limiting functions of the locking block 203 and the safety lock 104, thereby avoiding damage to the probe and the flaw detection support due to collision with obstacles. At the same time, the flaw detection support is provided with a flaw detection coupling liquid supply pipeline, which can spray the flaw detection coupling agent for each probe to ensure the flaw detection effect.

[0090] The flaw detection support of the present invention has the functions of longitudinal limiting, longitudinal automatic adjustment, lateral guiding follow-up, and probe position adjustment. It can effectively realize the contact flaw detection between the sliding shoe type probe and the trough-shaped rail head. It can also quickly lift off the top surface of the rail to avoid collision damage when not working. At the same time, a water supply pipeline for providing coupling liquid is provided to supply coupling liquid for flaw detection. This flaw detection support can be quickly hung on both sides of a medium and low-speed double-rail trough-shaped rail flaw detector to realize ultrasonic flaw detection of double-sided trough-shaped rails, improve the flaw detection efficiency, meet the development requirements of the industry, and fill the industry gap.

[0091] This embodiment also provides an ultrasonic flaw detector, including the flaw detection support.

[0092] As a further solution of this embodiment, the ultrasonic flaw detector includes a flaw detector frame. There are two flaw detection supports, and the two flaw detection supports are respectively fixed on both sides of the flaw detector frame. Specifically, the hanging plate 103 is fixedly connected to the flaw detector frame through the knob screw 106.

[0093] Specifically, the ultrasonic flaw detector is a double-rail trough-shaped rail flaw detector.

[0094] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0095] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0096] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0097] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0098] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0099] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flaw detection support, characterized in that, it includes a hanging frame assembly (100), a sliding frame assembly (200) and a sliding shoe probe assembly (300), the hanging frame assembly (100) includes at least one hanging frame guiding assembly, the hanging frame guiding assembly includes a guide shaft (101) and a first spring (102), and the guide shaft (101) is vertically arranged; the sliding frame assembly (200) includes a sliding frame plate assembly and a sliding frame guiding assembly, the first spring (102) and the sliding frame plate assembly are sleeved on the guide shaft (101), the first spring (102) applies a downward force to the sliding frame plate assembly, the sliding frame guiding assembly includes a guiding shaft (201) and a second spring (202), the guiding shaft (201) is horizontally fixed on the sliding frame plate assembly, the second spring (202) and the sliding shoe probe assembly (300) are sleeved on the guiding shaft (201), and the second spring (202) applies a force towards one side of the flaw detection support to the sliding shoe probe assembly (300); the sliding frame assembly (200) can slide up and down along the guide shaft (101), the first spring (102) applies a downward pressure to the sliding frame assembly (200), and the sliding frame assembly (200) drives the sliding shoe probe assembly (300) to automatically adjust longitudinally along the guide shaft (101) so that the sliding shoe probe assembly (300) fits down against the rail; the hanging frame assembly (100) further includes a hanging frame plate (103), both ends of the guide shaft (101) are fixedly connected to the hanging frame plate (103), a locking bumper (203) is fixedly arranged on the sliding frame plate assembly, a safety lock (104) is fixedly arranged on the hanging frame plate (103), the sliding frame assembly (200) can slide along the guide shaft (101) to a flaw detection position or a non-flaw detection position, and at the non-flaw detection position, the locking bumper (203) is detachably clamped with the safety lock (104); the sliding frame assembly (200) further includes a retracting and extending handle (204) and a retracting and extending shaft (205), a retracting and extending handle pin shaft (105) is further fixed on the hanging frame plate (103), the middle part of the retracting and extending handle (204) is hinged to the retracting and extending shaft (205), the retracting and extending shaft (205) is vertically installed on the sliding frame plate assembly, one end of the retracting and extending handle (204) has a strip-shaped limiting groove, and the retracting and extending handle pin shaft (105) slides through the limiting groove; the sliding frame plate assembly includes an inner sliding frame plate (207), an outer sliding frame plate (211) and a sliding frame plate fixing shaft (209), both the inner sliding frame plate (207) and the outer sliding frame plate (211) are arranged parallel to the hanging frame plate (103), both ends of the sliding frame plate fixing shaft (209) are respectively fixedly connected to the inner sliding frame plate (207) and the outer sliding frame plate (211); the inner sliding frame plate (207) is sleeved on the guide shaft (101), a linear bearing seat assembly (208) is fixed on the inner sliding frame plate (207), and the guide shaft (101) slides through the linear bearing seat assembly (208); A magnet (108) is fixed on the hanging plate (103), and a handle suction fixing block (212) is fixed on the retracting handle (204); It further includes a follow-up retracting and releasing frame group (400) fixed on the sliding shoe probe assembly (300). The retracting and releasing shaft (205) is rotatably installed on the sliding frame plate assembly, and a retracting and releasing cam (206) is also fixed on the retracting and releasing shaft (205). In the non-detection position, the retracting and releasing cam (206) abuts against the follow-up retracting and releasing frame group (400), and makes the sliding shoe probe assembly (300) close to one side of the detection bracket, and the retracting and releasing handle pin shaft (105) is located in the limit groove. In the detection position, the retracting and releasing cam (206) is separated from the follow-up retracting and releasing frame group (400); The sliding shoe probe assembly (300) includes a probe sliding frame assembly (301) and a probe assembly (303). The probe sliding frame assembly (301) is sleeved on the guide shaft (201), and the probe assembly (303) is at least one and is installed on the probe sliding frame assembly (301); The probe sliding frame assembly (301) includes a probe inner sliding frame and a probe outer sliding frame; The probe assembly (303) includes a probe spring assembly, a probe mounting assembly, and a probe (308). The probe sliding frame assembly (301) has a vertical strip-shaped probe guide hole. The probe mounting assembly slides in the probe guide hole. The probe (308) is fixed on the probe mounting assembly, and the probe spring assembly is fixed on the probe sliding frame assembly (301) and applies a downward force to the probe mounting assembly; The probe mounting assembly includes a probe hanging bracket (304), a probe guide block (305), a probe guide shaft (306), and a probe adjustment shaft (307). The probe guide block (305) slides up and down in the probe guide hole. The probe guide shaft (306) and the probe adjustment shaft (307) are both horizontally arranged. The probe guide shaft (306) is fixedly connected to the probe guide block (305). The probe adjustment shaft (307) is rotatably connected to the probe guide block (305). The probe hanging bracket (304) is in threaded transmission with the probe adjustment shaft (307) and is slidably connected to the probe guide shaft (306). The probe (308) is fixedly connected to the probe hanging bracket (304); The probe sliding frame assembly (301) includes a probe inner sliding frame (3011) and a probe outer sliding frame (3012). Corresponding probe guide holes are provided on both the probe inner sliding frame (3011) and the probe outer sliding frame (3012). Two probe assemblies (303) are respectively arranged in the two probe guide holes. Both ends of the probe guide shaft (306) are fixedly connected to the two probe guide blocks (305). Both ends of the probe adjustment shaft (307) are respectively rotatably connected to the two probe guide blocks (305); The probe spring assembly includes a probe spring, an upper spring seat (313) of the probe, and a lower spring seat of the probe. The two ends of the probe spring are respectively fixedly connected to the upper spring seat (313) of the probe and the lower spring seat of the probe. The upper spring seat (313) of the probe is fixed above or below the probe guide hole, and the lower spring seat of the probe is fixedly connected to the probe guide block (305); One end of the probe adjustment shaft (307) is fixedly provided with an adjustment handle (315); rotating the adjustment handle (315) can drive the probe adjustment shaft (307) to rotate, so that the probe hanging bracket (304) moves horizontally along the probe adjustment shaft (307) and the probe guide shaft (306), and further adjusts the lateral position of the probe (308), so that the probe (308) moves inward or outward of the flaw detection bracket; The sliding shoe probe assembly (300) further includes a follow-up guiding assembly (309). The follow-up guiding assembly (309) is fixedly arranged on the probe sliding bracket assembly (301) and is located on one side of the flaw detection bracket; the follow-up guiding assembly (309) is fixed on the inner sliding bracket (3011) of the probe; The follow-up guiding assembly (309) includes a guiding block (3091) and a side guiding wheel assembly (3092). There are two side guiding wheel assemblies (3092), which are respectively rotatably installed at both ends of the guiding block (3091). Each side guiding wheel assembly (3092) includes a side guiding shaft and a side guiding wheel. The side guiding shaft is fixedly connected to the guiding block (3091), and the side guiding wheel is sleeved on the side guiding shaft through a bearing.

2. The flaw detection bracket according to claim 1, characterized in that, At the flaw detection position, the retracting and extending handle (204) is detachably connected to the hanging bracket plate (103).

3. The flaw detection bracket according to claim 1, characterized in that, The sliding shoe probe assembly (300) further includes a walking wheel (302). There is at least one walking wheel (302), and all of them are rotatably arranged on the probe sliding bracket assembly (301).

4. The flaw detection bracket according to claim 1, characterized in that, There is at least one follow-up guiding assembly (309).

5. An ultrasonic flaw detector, characterized in that, It includes the flaw detection bracket according to any one of claims 1-4.

Images