CN110658262A - Probe wheel support of steel rail ultrasonic flaw detector - Google Patents
Probe wheel support of steel rail ultrasonic flaw detector Download PDFInfo
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- CN110658262A CN110658262A CN201911011903.9A CN201911011903A CN110658262A CN 110658262 A CN110658262 A CN 110658262A CN 201911011903 A CN201911011903 A CN 201911011903A CN 110658262 A CN110658262 A CN 110658262A
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- 239000000523 sample Substances 0.000 title claims abstract description 72
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 100
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010668 complexation reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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Abstract
The invention relates to a probe wheel bracket of a steel rail ultrasonic flaw detector, which comprises: the outer frame is connected with the flaw detector frame and is provided with a guide wheel set; the inner frame is arranged above the outer frame through a threaded adjusting piece; the swing angle adjusting mechanism is transversely and slidably connected with the inner frame, and a driving end of the swing angle adjusting mechanism is connected with the detection wheel set and adjusts the deflection angle of the detection wheel set relative to the transverse central plane of the steel rail; the driving end of the transverse adjusting mechanism is connected with the swing angle adjusting mechanism and drives the swing angle adjusting mechanism to drive the probe wheel set to transversely move along the inner frame; wherein, twist and move the vertical displacement volume of screw thread adjusting part adjustment inner frame, pivot angle adjustment mechanism, horizontal adjustment mechanism and spy wheelset, realize spy wheelset for the regulation of rail tread pushing down the volume, after pushing down the volume adjustment and targetting in place, with horizontal adjustment mechanism and direction wheelset locking fixed.
Description
Technical Field
The invention relates to a probe wheel bracket of a steel rail ultrasonic flaw detector, belonging to the technical field of steel rail ultrasonic flaw detection.
Background
At present, the ultrasonic probe wheel is widely used in a steel rail flaw detector. According to the requirement of ultrasonic flaw detection of the steel rail, the probe wheel must keep a certain pressing amount and a certain angle on the top surface of the steel rail during working. However, since the gauge of the rail is changed frequently, if the probe wheel is simply fixed on the ultrasonic flaw detector for the rail, the probe wheel will deviate from the preset flaw detection position along with the change of the gauge in the flaw detection process of the ultrasonic flaw detector for the rail.
At present, a follow-up structure of a probe wheel bracket is relatively complex, and installation and later maintenance are troublesome. The position adjusting function of the probe wheel is mainly transverse adjustment and angle adjustment, the adjusting function of the pushing amount is weakened, the adjusting structure of the pushing amount is complex, and installation and later maintenance are troublesome.
Disclosure of Invention
The invention aims to solve the technical problems that the conventional follow-up structure is complex, the whole adjusting structure is not matched tightly enough, and the installation and later maintenance are troublesome.
The technical scheme for solving the technical problems is as follows: a probe wheel bracket of a steel rail ultrasonic flaw detector comprises:
the outer frame is connected with the flaw detector frame, and a guide wheel set is arranged on the outer frame;
an inner frame mounted over the outer frame by a threaded adjustment;
the swing angle adjusting mechanism is transversely and slidably connected with the inner frame, and a driving end of the swing angle adjusting mechanism is connected with the detection wheel set and adjusts the deflection angle of the detection wheel set relative to the transverse central plane of the steel rail;
the transverse adjusting mechanism is transversely limited on the guide wheel set and can vertically move relative to the guide wheel set, and a driving end of the transverse adjusting mechanism is connected with the swing angle adjusting mechanism and drives the swing angle adjusting mechanism to drive the probe wheel set to transversely move along the inner frame;
wherein, twist and move the vertical displacement volume of screw thread adjusting part adjustment inner frame, pivot angle adjustment mechanism, horizontal adjustment mechanism and spy wheelset, realize spy wheelset for the regulation of rail tread pushing down the volume, after pushing down the volume adjustment and targetting in place, with horizontal adjustment mechanism and direction wheelset locking fixed.
The invention has the beneficial effects that: according to the invention, the inner frame is arranged above the outer frame through the thread adjusting part, the vertical displacement of the inner frame, the swing angle adjusting mechanism, the transverse adjusting mechanism and the probe wheel set arranged on the inner frame are adjusted by screwing the thread adjusting part, so that the adjustment of the downward pressing amount of the probe wheel set relative to the tread of the steel rail is realized, the downward pressing amount is prevented from changing by locking and fixing after the adjustment, the structure is simple and easy to realize, and the operation and the later maintenance are convenient; before the flaw detector runs, the swing angle adjusting mechanism and the transverse adjusting mechanism are utilized to adjust the probe wheel set to a preset flaw detection position, and after the flaw detector runs, the transverse adjusting mechanism is matched with the guide wheel set to realize the follow-up function of the probe wheel set and the guide wheel set, so that the probe wheel set is always positioned at the preset position of the central axis surface of the steel rail along with the change of the inner side surface of the steel rail.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the lateral adjustment mechanism includes:
the transverse motor connecting plate is positioned on one side of the detection wheel set;
the transverse motor is transversely arranged on the transverse motor connecting plate, and the driving end of the transverse motor is connected with the swing angle adjusting mechanism;
the guide column I is installed on the transverse motor connecting plate, a sliding sleeve I is arranged on the guide wheel set, and the guide column I can be vertically and slidably arranged in the sliding sleeve I;
in the process of adjusting the pressing amount, the first guide column vertically slides in the first sliding sleeve, and after the pressing amount is adjusted in place, the transverse motor connecting plate is locked and fixed with the guide wheel set.
The beneficial effect of adopting the further scheme is that: the transverse motor connecting plate is arranged on one side of the probe wheel set, so that the transverse motor can be conveniently arranged, the transverse motor connecting plate can be conveniently matched with the first sliding sleeve and the locking structure on the guide wheel set, and the transverse motor connecting plate and the transverse motor on the transverse motor connecting plate can realize follow-up with the guide wheel set after the pressing amount is adjusted in place.
Furthermore, a second transversely-arranged guide post is arranged on the transverse motor connecting plate, a second sliding sleeve is arranged on the swing angle adjusting mechanism, and the second guide post can be arranged in the second sliding sleeve in a transverse sliding mode.
The beneficial effect of adopting the further scheme is that: and a second guide post is arranged on the transverse motor connecting plate, so that the transverse motor can enable the swing angle adjusting mechanism to move transversely stably in the transverse adjustment process, and the deviation is prevented.
Furthermore, the guide wheel sets are two and are respectively located the front side and the rear side of the detection wheel set, and the two ends of the transverse motor connecting plate are respectively provided with the first guide posts.
The beneficial effect of adopting the further scheme is that: carry out spacing fixed with two direction wheelsets respectively with horizontal motor connecting plate both ends, make horizontal adjustment mechanism's connection more stable, drive pivot angle adjustment mechanism and last spy wheelset lateral shifting more steady.
Furthermore, a guide shaft which is transversely arranged is arranged on the outer frame, and the guide wheel set is rotatably connected to the guide shaft and can axially move along the guide shaft;
the guide wheel set comprises a guide wheel, a shaft sleeve and a connecting frame, the guide wheel is rotatably connected onto the shaft sleeve, the shaft sleeve is sleeved on the guide shaft and can axially slide along the guide shaft, the connecting frame is installed on the shaft sleeve, and the first sliding sleeve is arranged on one side, close to the transverse adjusting mechanism, of the connecting frame; and after the pressing amount is adjusted to the proper position, the transverse motor connecting plate is locked and fixed with the connecting frame.
The beneficial effect of adopting the further scheme is that: the guide wheel group can rotate on the guide shaft, can also move along the axial direction of the guide shaft, and is connected with the transverse adjusting mechanism in a matching way by utilizing the connecting frame, and the connecting frame provides support for the guide wheel and does not influence the rotation of the guide wheel.
Furthermore, one end of the shaft sleeve, which is close to the transverse motor connecting plate, is connected with guide blocks which are respectively arranged in front of and behind the guide wheel, the guide wheel is provided with a friction ring which is arranged at the same side as the guide blocks, and a brush assembly is arranged on the guide block which is positioned at the front side of the guide wheel; and a transversely arranged extension spring is connected between the outer frame and the connecting frame and is positioned on one side of the shaft sleeve, which is far away from the transverse motor connecting plate.
The beneficial effect of adopting the further scheme is that: the friction ring is made of wear-resistant materials, so that the problem that the whole guide wheel is frequently replaced due to too fast abrasion of the rim of the guide wheel is solved; the guide block structure on the outer side and the two sides of the guide wheel is adopted, so that the turnout is more reliable when the turnout core is reversely entered; the tension spring structure is adopted, the sliding shaft is not required to be sleeved with the tension spring, and the installation and the disassembly are more convenient.
Further, the swing angle adjusting mechanism includes:
the swing angle motor connecting frame is positioned on one side of the detection wheel group, and the driving end of the transverse adjusting mechanism is connected with the swing angle motor connecting frame;
the two connecting plates are respectively positioned at the front side and the rear side of the detection wheel set, sliding blocks are arranged on the connecting plates, transversely-arranged guide rails are arranged on the inner frame, and the sliding blocks are in sliding fit with the guide rails;
the swing angle motor is arranged on the swing angle motor connecting frame;
the driving end of the swing angle motor is connected with the upper end of the detection wheel set and drives the detection wheel set to deflect a certain angle relative to the transverse central plane of the steel rail.
The beneficial effect of adopting the further scheme is that: when the swing angle motor is driven, the swing angle motor can drive the probe wheel set to rotate between the two connecting plates, so that the aim of adjusting the angle of the probe wheel is fulfilled.
Furthermore, the lower ends of the connecting plates positioned on two sides of the probe wheel set are respectively connected with a spray head assembly.
The beneficial effect of adopting the further scheme is that: when a water pipe on the flaw detector is inserted into the water pipe quick-connection connector, a water pump on the flaw detector is driven, and the coupling liquid can be sprayed to the preset position on the surface of the steel rail head through the spray head assembly.
Further, a vertically arranged spring pin is mounted on the inner frame, a limiting groove is formed in the position, corresponding to the lower end of the spring pin, of the swing angle adjusting mechanism, and a roller collision block assembly is mounted on the outer side of the limiting groove; when the swing angle adjusting mechanism is assembled, the swing angle adjusting mechanism is pushed to slide along the inner frame, the roller on the roller collision block assembly extrudes the button of the spring pin, the pin head of the spring pin is arranged in the limiting groove, and the assembly locking of the swing angle adjusting mechanism and the probe wheel group is realized.
The beneficial effect of adopting the further scheme is that: the spring pin is matched with the roller anti-collision block assembly, when the swing angle adjusting mechanism is assembled, the pin head of the spring pin is arranged in the limiting groove, the swing angle adjusting mechanism, the probe wheel set, the transverse adjusting mechanism and the guide wheel set are integrally limited at preset positions, after the probe wheel bracket is integrally fixed on a flaw detector car body, a gap is reserved between the guide block on the guide wheel set and the inner side surface of the rail head of the steel rail, the guide block is easily placed on the inner side of the steel rail, then the pull ring of the spring pin is manually lifted, the pin head of the spring pin returns, and the guide wheel set is tightly attached to the inner side surface of the rail head of the steel rail under the action of the extension spring at the moment; after flaw detection is finished, the probe wheel group is manually pushed to transversely move towards the inner side of the steel rail head, the roller on the roller collision block component extrudes the button on the spring pin, the pin head of the spring pin is arranged in the limiting groove, the swing angle adjusting mechanism and the probe wheel group are locked again, and preparation is made for taking the probe wheel frame down from the vehicle body.
Furthermore, be equipped with guide post three on the outer frame, be equipped with the guiding hole on the internal frame, the internal frame passes through the guiding cooperation of guiding hole and guide post three to be installed on the outer frame, be connected with fastening nut on the guide post three.
The beneficial effect of adopting the further scheme is that: by means of the matching of the third guide column and the guide hole, the inner frame and the upper structure of the inner frame can be moved in the vertical direction when being installed or adjusted to press down, and deviation is avoided.
Drawings
FIG. 1 is a schematic view of an assembly of the probe wheel holder of the present invention;
FIG. 2 is a schematic view of the mounting structure of the inner frame, the lateral adjustment mechanism, the pivot angle adjustment mechanism and the probe wheel set of the present invention;
FIG. 3 is a schematic perspective view of the outer frame of the present invention;
FIG. 4 is a schematic perspective view of the lateral adjustment mechanism of the present invention;
FIG. 5 is a schematic view of the mounting structure of the outer frame, the guide wheel set and the lateral adjustment mechanism of the present invention;
FIG. 6 is a first perspective view of a guide wheel assembly according to the present invention;
FIG. 7 is a schematic perspective view of a guide wheel assembly according to the present invention;
FIG. 8 is a schematic cross-sectional view of a guide wheel assembly of the present invention;
FIG. 9 is a schematic perspective view of the roller impact block assembly of the present invention;
FIG. 10 is a perspective view of the brush assembly of the present invention;
FIG. 11 is a schematic perspective view of a showerhead assembly of the present invention;
FIG. 12 is a schematic view of two states of the probe wheel assembly of the present invention engaged with a rail.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an inner frame; 11. a threaded adjustment member; 12. a spring pin; 13. a button; 14. a pin head; 15. a roller bump assembly; 16. a roller; 17. a guide rail; 18. a threaded shaft;
2. an outer frame; 21. a guide shaft; 22. a third guide post; 23. fixing the bolt; 24. a connecting arm; 25. hanging the plate;
3. a guide wheel set; 31. a guide wheel; 32. a shaft sleeve; 321. a retainer ring for a shaft; 322. an inner spacer sleeve; 323. an outer spacer sleeve; 33. a connecting frame; 34. a first sliding sleeve; 35. a guide block; 36. a friction ring; 37. a brush assembly; 371. a brush holder; 372. an anti-rotation baffle; 373. a water pipe connecting pipe; 374. a brush; 38. an extension spring; 381. a spring connecting rod; 39. a bearing;
4. a detection wheel set; 41. a showerhead assembly; 42. hooping; 43. folding the plate; 44. a spray head;
5. a swing angle adjusting mechanism; 51. a swing angle motor connecting frame; 52. a connecting plate; 53. a swing angle motor; 54. a slider; 55. a rotating shaft; 56. a second sliding sleeve; 57. a limiting groove;
6. a lateral adjustment mechanism; 61. a transverse motor connecting plate; 62. a transverse motor; 63. a first guide post; 64. a second guide post; 65. locking screws;
7. a steel rail; 71. a rail transverse centerline; 72. the horizontal central line of the probe wheel.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in fig. 1 to 11, a probe wheel holder of a rail ultrasonic flaw detector of the present embodiment includes:
the outer frame 2 is connected with a flaw detector frame, and a guide wheel set 3 is arranged on the outer frame 2;
an inner frame 1 mounted over the outer frame 2 by a threaded adjustment 11;
the swing angle adjusting mechanism 5 is connected with the inner frame 1 in a transverse sliding mode, the driving end of the swing angle adjusting mechanism 5 is connected with the detection wheel set 4, and the deflection angle of the detection wheel set 4 relative to the transverse central plane of the steel rail is adjusted;
the transverse adjusting mechanism 6 is transversely limited on the guide wheel set 3 and can vertically move relative to the guide wheel set 3, and a driving end of the transverse adjusting mechanism 6 is connected with the swing angle adjusting mechanism 5 and drives the swing angle adjusting mechanism 5 to drive the probe wheel set 4 to transversely move along the inner frame 1;
wherein, twist and move the vertical displacement volume of screw thread adjusting part 11 adjustment inner frame 1, pivot angle adjustment mechanism 5, horizontal adjustment mechanism 6 and spy wheelset 4, realize spy wheelset 4 for the regulation of rail tread volume of pushing down, after the volume of pushing down adjusts to the right place, with horizontal adjustment mechanism 6 and direction wheelset 3 locking fixed.
As shown in fig. 1, a hanging plate 25 is arranged on the outer frame 2, and the outer frame 2 is fixedly connected with a flaw detector frame through the hanging plate 25; specifically, the hanging plates 25 are respectively arranged on the two sides of the position of the outer frame 2 for connecting the threaded adjusting member 11, and when the inner frame 1 is installed on the outer frame 2 from top to bottom, the hanging plates 25 can be partially shielded. Wherein, the optional knob screw that uses of screw thread adjusting part 11, threaded connection has the nut on the knob screw, and the knob screw is respectively with interior frame 1 and outer frame 2 threaded connection, after the vertical displacement volume of each part of knob screw adjustment targets in place, utilizes the nut on it to lock.
In the embodiment, the inner frame is arranged above the outer frame through the thread adjusting part, the inner frame, the swing angle adjusting mechanism, the transverse adjusting mechanism and the vertical displacement of the detecting wheel group are adjusted by screwing the thread adjusting part, so that the downward pressing amount of the detecting wheel group relative to the tread of the steel rail is adjusted, and the downward pressing amount is locked and fixed after adjustment to prevent the change of the downward pressing amount; before the flaw detector runs, the swing angle adjusting mechanism and the transverse adjusting mechanism are utilized to adjust the probe wheel set to a preset flaw detection position, and after the flaw detector runs, the transverse adjusting mechanism is matched with the guide wheel set to realize the follow-up function of the probe wheel set and the guide wheel set, so that the probe wheel set is always positioned at the preset position of the central axis surface of the steel rail along with the change of the inner side surface of the steel rail.
As shown in fig. 2, 4 and 5, the lateral adjustment mechanism 6 of the present embodiment includes:
the transverse motor connecting plate 61 is positioned on one side of the probe wheel group 4;
the transverse motor 62 is transversely arranged on the transverse motor connecting plate 61, and the driving end of the transverse motor 62 is connected with the swing angle adjusting mechanism 5;
the guide column I63 is installed on the transverse motor connecting plate 61, a sliding sleeve I34 is arranged on the guide wheel set 3, and the guide column I63 can be vertically and slidably arranged in the sliding sleeve I34;
in the process of adjusting the downward pressing amount, the first guide column 63 vertically slides in the first sliding sleeve 34, and after the downward pressing amount is adjusted to be in place, the transverse motor connecting plate 61 is locked and fixed with the guide wheel set 3.
The transverse motor drives the swing angle adjusting mechanism and drives the probe wheel group on the swing angle adjusting mechanism to realize transverse movement, the adjustment of the transverse displacement L of the probe wheel group is realized, the transverse motor connecting plate is installed on one side of the probe wheel group, the transverse motor can be conveniently installed, the transverse motor connecting plate is conveniently matched with the sliding sleeve I and the locking structure on the guide wheel group, and when the pressing amount is adjusted in place, the transverse motor connecting plate and the transverse motor on the transverse motor connecting plate can be driven to realize follow-up with the guide wheel group.
As shown in fig. 2, 4 and 5, in order to prevent the lateral adjustment mechanism from deviating, a second lateral guide post 64 is disposed on the lateral motor connecting plate 61, a second sliding sleeve 56 is disposed on the swing angle adjustment mechanism 5, and the second guide post 64 is disposed in the second sliding sleeve 56 in a lateral sliding manner. In order to make the transverse adjustment more stable, the two guide posts 64 can also be provided in plurality, for example, two guide posts 64 can be respectively arranged on two sides of the transverse motor 62, and the two guide posts are arranged on the transverse motor connecting plate, so that the transverse movement of the swing angle adjusting mechanism can be stabilized when the transverse motor performs transverse adjustment, and the deviation can be prevented.
As shown in fig. 5, the two guide wheel sets 3 of this embodiment are respectively located at the front and rear sides of the probe wheel set 4, and the two ends of the transverse motor connecting plate 61 are respectively provided with the first guide posts 63. Specifically, as shown in fig. 4, the transverse motor connecting plate 61 is of a bent arc-shaped structure and is arranged and extended back and forth, and the transverse motor 62 is installed above the middle of the transverse motor connecting plate 61 and has its driving end extended transversely. The first guide posts 63 are two and are respectively vertically fixed at the positions, close to the two ends, of the transverse motor connecting plate 61. Open slots are respectively formed in two ends of the transverse motor connecting plate 61, locking screws 65 are arranged on the open slots and penetrate through the two slot walls of the open slots, the part, limited and fixed by the transverse motor connecting plate, of the guide wheel set can be arranged in the open slots, and the guide wheel set is locked and fixed through the locking screws 65. Carry out spacing fixed with two direction wheelsets respectively with horizontal motor connecting plate both ends, make horizontal adjustment mechanism's connection more stable, drive pivot angle adjustment mechanism and last spy wheelset lateral shifting more steady.
As shown in fig. 1, 3 and 5, the outer frame 2 of the present embodiment is provided with a guide shaft 21 transversely arranged, and the guide wheel set 3 is rotatably connected to the guide shaft 21 and can move axially along the guide shaft 21;
as shown in fig. 5 to 8, the guide wheel set 3 includes a guide wheel 31, a shaft sleeve 32 and a connecting frame 33, the guide wheel 31 is rotatably connected to the shaft sleeve 32, the shaft sleeve 32 is sleeved on the guide shaft 21 and can axially slide along the guide shaft 21, the connecting frame 33 is installed on the shaft sleeve 32, and the first sliding sleeve 34 is arranged on one side of the connecting frame 33 close to the transverse adjusting mechanism 6; when the pressing amount is adjusted to the right position, the transverse motor connecting plate 61 is locked and fixed with the connecting frame 33. The guide wheel group can rotate on the guide shaft, can also move along the axial direction of the guide shaft, and is connected with the transverse adjusting mechanism in a matching way by utilizing the connecting frame, and the connecting frame provides support for the guide wheel and does not influence the rotation of the guide wheel.
In the embodiment, as shown in fig. 8, a guide wheel 31 is rotatably connected to the outside of a shaft sleeve 32 through a bearing 39, a connecting frame 33 is in an inverted U-shaped structure and is erected above the guide wheel 31, two side walls of the connecting frame 33 are respectively fixedly connected to two ends of the shaft sleeve 32, the shaft sleeve 32 limits the connecting frame 33 at the outside of the connecting frame 33 through a shaft retainer ring 321, and the guide wheel 31 and the two side walls of the connecting frame 33 are arranged at intervals through an outer spacer 323; the guide wheel 31 is rotatably connected with the shaft sleeve 32 through two bearings 39, and an inner spacer 322 is arranged on the shaft sleeve 32 between the two bearings 39. The first sliding sleeve 34 is arranged on the outer wall of one side, close to the transverse motor connecting plate 61, of the connecting frame 33, and the first sliding sleeve 34 is located above the shaft sleeve 32.
As shown in fig. 1, 5-8, one end of the shaft sleeve 32 close to the transverse motor connecting plate 61 is connected with guide blocks 35 respectively arranged in front of and behind the guide wheel 31, a friction ring 36 arranged on the same side as the guide block 35 is arranged on the guide wheel 31, and a brush assembly 37 is mounted on the guide block 35 on the front side of the guide wheel 31; a transversely arranged extension spring 38 is connected between the outer frame 2 and the connecting frame 33, and the extension spring 38 is positioned on one side of the shaft sleeve 32 far away from the transverse motor connecting plate 61. The friction ring is made of wear-resistant materials, so that the problem that the whole guide wheel is frequently replaced due to too fast abrasion of the rim of the guide wheel is solved; the guide block structure on the outer side and the two sides of the guide wheel is adopted, so that the turnout is more reliable when the turnout core is reversely entered; the tension spring structure is adopted, the sliding shaft is not required to be sleeved with the tension spring, and the installation and the disassembly are more convenient. The follow-up of the spy wheel support of this embodiment relies on the leading wheel of band flange mostly and installs the compression spring in leading wheel flange one side additional and realize, the leading wheel both need rotate and need be along rail cross section direction horizontal follow-up, extension spring is adopted to this embodiment, extension spring passes through the spring coupling post and connects on link and outer frame, in the operation in-process of detecting a flaw, extension spring is drawing the direction wheelset all the time and is making its friction ring reach the purpose of following up in real time along with the gauge change near rail railhead medial surface all the time. Because outer frame 2 is square frame structure, and its four corners downwardly extending forms four connecting arms 24 respectively, and every two connecting arm tip that arrange from beginning to end are used for installing guiding axle 21, are equipped with spring link 381 on the connecting arm 24 on outer frame 2 left side or right side respectively, and spring link 381 arranges perpendicularly and is located with the vertical connecting arm 24 of arranging guiding axle 21 top, connects an extension spring 38's one end respectively at spring link 381 both ends, and extension spring 38's the other end is connected with a lateral wall of link 33, and the structure of link 33 provides effectual structural support for extension spring 38 through outer frame 2 and leading wheel on like this, need not adopt the litter structure, and installation and later maintenance are all very convenient.
Specifically, as shown in fig. 10, the brush assembly 37 includes a brush holder 371, an anti-rotation baffle 372, a water pipe connection tube 373, and a brush 374, wherein the brush holder 371 is of an inverted L shape, one end of the brush holder 371 is fixed above the guide block 35 located outside the guide wheel 31, the brush 374 is fixed below the other end of the brush holder 371, and the water pipe connection tube 373 is installed above the brush holder 371 and is communicated with the brush 374.
As shown in fig. 2, the pivot angle adjusting mechanism 5 of the present embodiment includes:
the swing angle motor connecting frame 51 is positioned on one side of the detection wheel group 4, and the driving end of the transverse adjusting mechanism 5 is connected with the swing angle motor connecting frame 51;
the two connecting plates 52 are respectively positioned at the front side and the rear side of the probe wheel set 4, the connecting plates 52 are provided with sliding blocks 54, the inner frame 1 is provided with transversely arranged guide rails 17, and the sliding blocks 54 are in sliding fit with the guide rails 17; the lower ends of the connecting plates 52 positioned at the two sides of the probe wheel set 4 are respectively connected with a spray head assembly 41;
the swing angle motor 53, the swing angle motor 53 is installed on the swing angle motor connecting frame 51;
the detection wheel group 4 is hinged between two connecting plates 52, and a driving end of the swing angle motor 53 is connected with an upper end of the detection wheel group 4 and drives a detection wheel transverse central plane of the detection wheel group 4 to deflect a certain angle alpha relative to a steel rail transverse central plane of the steel rail 7. The rail transverse center plane is illustrated by rail transverse centerline 71 in fig. 12, and the probe wheel transverse center plane is illustrated by probe wheel transverse centerline 71 in fig. 12.
When the swing angle motor 53 is driven, the swing angle motor 53 drives the probe wheel set 4 to rotate between the two connecting plates 52, so as to adjust the angle of the probe wheel. When a water pipe on the flaw detector is inserted into the water pipe quick-connection connector, a water pump on the flaw detector is driven, and the coupling liquid can be sprayed to the preset position on the surface of the steel rail head through the spray head assembly.
Specifically, as shown in fig. 11, the sprayer assembly 41 includes a flap 43, an anchor ear 42 and a sprayer 44, the flap 43 is mounted on the lower end of the connecting plate 52 and located below the rotating shaft 55, the sprayer 44 is mounted on the flap 43 through the anchor ear 42, and the spraying opening of the sprayer is arranged towards the probe wheel set 4.
As shown in fig. 1, 2 and 9, the inner frame 1 of the present embodiment is provided with a vertically arranged spring pin 12, the swing angle adjusting mechanism 5 is provided with a limiting groove 57 at a position corresponding to the lower end of the spring pin 12, and the outer side of the limiting groove 57 is provided with a roller striking block assembly 15; when the swing angle adjusting mechanism 5 is assembled, the swing angle adjusting mechanism 5 is pushed to slide along the inner frame 1, so that the roller 16 on the roller striking block assembly 15 presses the button 13 of the spring pin 12, the pin head 14 of the spring pin 12 is placed in the limiting groove 57, and the assembly and locking of the swing angle adjusting mechanism 5 and the probe wheel set 4 are realized. Specifically, a threaded shaft 18 which is vertically arranged is installed on the roller collision block assembly 15, a roller 16 is connected to the upper end of the threaded shaft 18, the roller 16 can horizontally rotate at the upper end of the threaded shaft 18, the roller collision block assembly 15 is fixed on a swing angle motor connecting frame 51 through a pin and arranged on the same side of the connecting plate, the swing angle adjusting mechanism, the probe wheel set, the transverse adjusting mechanism and the guide wheel set are integrally limited at a preset position by matching a spring pin and the roller collision block assembly, when the swing angle adjusting mechanism is assembled, a gap is reserved between the guide block on the guide wheel set and the inner side surface of the rail head of the steel rail after the probe wheel bracket is integrally fixed on a flaw detector vehicle body, the guide block is easily placed on the inner side of the steel rail, then a pull ring of the spring pin is manually lifted, so that the pin head of the spring pin returns, the guide wheel set is tightly attached to the inner side of the rail head under the action of the extension spring. After flaw detection is finished, the probe wheel group is manually pushed to transversely move towards the inner side of the steel rail head, the roller on the roller collision block component extrudes the button on the spring pin, the pin head of the spring pin is arranged in the limiting groove, the swing angle adjusting mechanism and the probe wheel group are locked again, and preparation is made for taking the probe wheel frame down from the vehicle body.
As shown in fig. 1 and 3, the outer frame 2 of the present embodiment is provided with a third guiding column 22, the inner frame 1 is provided with a guiding hole, the inner frame 1 is installed on the outer frame 2 through the guiding fit of the guiding hole and the third guiding column 22, and the third guiding column 22 is connected with a fastening nut. This embodiment may preferably provide the guide post three 22 on the upper surface of the outer frame 2. Utilize the cooperation of guide post three and guiding hole, when the installation or adjust the internal frame and the volume of pushing down of its upper structure, can remove along vertical direction, avoid taking place the skew, after the volume adjustment targets in place, usable fastening nut locks fixedly.
The front-back direction of the present embodiment is set by the guide wheel set and the probe wheel set along the traveling direction of the rail. In addition, "lateral arrangement", "lateral movement", and the like of the present embodiment refer to being set relatively perpendicular to the traveling direction.
The detection wheel support has a guiding follow-up function and a detection wheel position adjusting function, and the detection wheel is adjusted to a preset detection position of the steel rail through the detection wheel adjusting function before the detection wheel set runs in the flaw detector; the flaw detector is operated, the probe wheel is always positioned at the preset position of the central axis surface of the steel rail along with the change of the inner side surface of the steel rail through the follow-up function of the probe wheel bracket, and the probe wheel can smoothly pass through the guide structure of the follow-up part when passing through a turnout.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a rail ultrasonic flaw detector surveys wheel support which characterized in that includes:
the outer frame is connected with the flaw detector frame, and a guide wheel set is arranged on the outer frame;
an inner frame mounted over the outer frame by a threaded adjustment;
the swing angle adjusting mechanism is transversely and slidably connected with the inner frame, and a driving end of the swing angle adjusting mechanism is connected with the detection wheel set and adjusts the deflection angle of the detection wheel set relative to the transverse central plane of the steel rail;
the transverse adjusting mechanism is transversely limited on the guide wheel set and can vertically move relative to the guide wheel set, and a driving end of the transverse adjusting mechanism is connected with the swing angle adjusting mechanism and drives the swing angle adjusting mechanism to drive the probe wheel set to transversely move along the inner frame;
wherein, twist and move the vertical displacement volume of screw thread adjusting part adjustment inner frame, pivot angle adjustment mechanism, horizontal adjustment mechanism and spy wheelset, realize spy wheelset for the regulation of rail tread pushing down the volume, after pushing down the volume adjustment and targetting in place, with horizontal adjustment mechanism and direction wheelset locking fixed.
2. A rail ultrasonic flaw detector probe wheel carriage according to claim 1 in which the lateral adjustment mechanism includes:
the transverse motor connecting plate is positioned on one side of the detection wheel set;
the transverse motor is transversely arranged on the transverse motor connecting plate, and the driving end of the transverse motor is connected with the swing angle adjusting mechanism;
the guide column I is installed on the transverse motor connecting plate, a sliding sleeve I is arranged on the guide wheel set, and the guide column I can be vertically and slidably arranged in the sliding sleeve I;
in the process of adjusting the pressing amount, the first guide column vertically slides in the first sliding sleeve, and after the pressing amount is adjusted in place, the transverse motor connecting plate is locked and fixed with the guide wheel set.
3. The probe wheel bracket of the steel rail ultrasonic flaw detector according to claim 2, wherein a second transversely-arranged guide post is arranged on the transverse motor connecting plate, a second sliding sleeve is arranged on the swing angle adjusting mechanism, and the second guide post is arranged in the second sliding sleeve in a transversely-sliding manner.
4. The probe wheel bracket of a rail ultrasonic flaw detector according to claim 2, wherein the number of the guide wheel sets is two and is respectively located at the front side and the rear side of the probe wheel set, and the first guide posts are respectively arranged at two ends of the transverse motor connecting plate.
5. The probe wheel bracket of the steel rail ultrasonic flaw detector according to claim 2, wherein the outer frame is provided with a guide shaft which is transversely arranged, and the guide wheel set is rotatably connected to the guide shaft and can axially move along the guide shaft;
the guide wheel set comprises a guide wheel, a shaft sleeve and a connecting frame, the guide wheel is rotatably connected onto the shaft sleeve, the shaft sleeve is sleeved on the guide shaft and can axially slide along the guide shaft, the connecting frame is installed on the shaft sleeve, and the first sliding sleeve is arranged on one side, close to the transverse adjusting mechanism, of the connecting frame; and after the pressing amount is adjusted to the proper position, the transverse motor connecting plate is locked and fixed with the connecting frame.
6. The probe wheel bracket of a rail ultrasonic flaw detector according to claim 5, wherein one end of the shaft sleeve near the transverse motor connecting plate is connected with guide blocks respectively arranged in front of and behind the guide wheel, the guide wheel is provided with a friction ring arranged on the same side as the guide block, and a brush assembly is mounted on the guide block on the front side of the guide wheel; and a transversely arranged extension spring is connected between the outer frame and the connecting frame and is positioned on one side of the shaft sleeve, which is far away from the transverse motor connecting plate.
7. The probe wheel support of a rail ultrasonic flaw detector according to any one of claims 1 to 6, wherein the pivot angle adjusting mechanism includes:
the swing angle motor connecting frame is positioned on one side of the detection wheel group, and the driving end of the transverse adjusting mechanism is connected with the swing angle motor connecting frame;
the two connecting plates are respectively positioned at the front side and the rear side of the detection wheel set, sliding blocks are arranged on the connecting plates, transversely-arranged guide rails are arranged on the inner frame, and the sliding blocks are in sliding fit with the guide rails;
the swing angle motor is arranged on the swing angle motor connecting frame;
the driving end of the swing angle motor is connected with the upper end of the detection wheel set and drives the detection wheel set to deflect a certain angle relative to the transverse central plane of the steel rail.
8. The probe wheel bracket of the ultrasonic flaw detector for steel rails according to claim 7, wherein the lower ends of the connecting plates at the two sides of the probe wheel set are respectively connected with a nozzle assembly.
9. The probe wheel bracket of the steel rail ultrasonic flaw detector according to any one of claims 1 to 6 and 7, wherein a vertically arranged spring pin is mounted on the inner frame, a limit groove is formed in the swing angle adjusting mechanism at a position corresponding to the lower end of the spring pin, and a roller collision block assembly is mounted on the outer side of the limit groove; when the swing angle adjusting mechanism is assembled, the swing angle adjusting mechanism is pushed to slide along the inner frame, the roller on the roller collision block assembly extrudes the button of the spring pin, the pin head of the spring pin is arranged in the limiting groove, and the assembly locking of the swing angle adjusting mechanism and the probe wheel group is realized.
10. A probe wheel support of a steel rail ultrasonic flaw detector according to any one of claims 1 to 6 and 7, wherein a third guide post is arranged on the outer frame, a guide hole is arranged on the inner frame, the inner frame is mounted on the outer frame through the guide fit of the guide hole and the third guide post, and a fastening nut is connected to the third guide post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011903.9A CN110658262A (en) | 2019-10-23 | 2019-10-23 | Probe wheel support of steel rail ultrasonic flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011903.9A CN110658262A (en) | 2019-10-23 | 2019-10-23 | Probe wheel support of steel rail ultrasonic flaw detector |
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| Publication Number | Publication Date |
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| CN110658262A true CN110658262A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911011903.9A Pending CN110658262A (en) | 2019-10-23 | 2019-10-23 | Probe wheel support of steel rail ultrasonic flaw detector |
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| CN111624255A (en) * | 2020-06-24 | 2020-09-04 | 北京地平线轨道技术有限公司 | Flaw detection support and ultrasonic flaw detector |
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| CN112834616A (en) * | 2021-01-04 | 2021-05-25 | 中车青岛四方机车车辆股份有限公司 | Welding seam detection device and method |
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