CN117968618A - Steel rail flatness detection device - Google Patents
Steel rail flatness detection device Download PDFInfo
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- CN117968618A CN117968618A CN202410377723.7A CN202410377723A CN117968618A CN 117968618 A CN117968618 A CN 117968618A CN 202410377723 A CN202410377723 A CN 202410377723A CN 117968618 A CN117968618 A CN 117968618A
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- 238000001514 detection method Methods 0.000 title claims abstract description 139
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 89
- 239000010959 steel Substances 0.000 title claims abstract description 89
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to the technical field of steel rail top flatness detection, in particular to a steel rail flatness detection device; the device comprises a conveying roller way for conveying steel rails, a fixed lifting unit arranged on the lower side of the conveying roller way and a flatness detection unit crossing over the conveying roller way; the fixed lifting unit is used for lifting and fixing the steel rail; the flatness detection unit is used for detecting the flatness of the rail top of the steel rail in a contact mode; fixed supporting wheels are oppositely arranged on two sides of the conveying roller way, and gaps are reserved between the fixed supporting wheels; two driving channels are oppositely arranged on the conveying roller way, and the fixed lifting unit is positioned between the driving channels; two sides of the conveying roller way are oppositely provided with movable supporting wheels which are positioned between the driving channels; the invention solves the problem of how to realize automatic contact detection on the flatness of the rail top.
Description
Technical Field
The invention relates to the technical field of steel rail top flatness detection, in particular to a steel rail flatness detection device.
Background
The steel rail flatness refers to the deviation degree of a working plane of a steel rail and a measuring reference plane, the steel rail flatness is detected by firstly selecting the measuring reference plane, then taking the plane as a reference, selecting detection points which are distributed at intervals on the reference plane, measuring the vertical distance between the detection points and the steel rail plane, and finally combining the distance information measured at all the points together, thereby obtaining the flatness information of the steel rail.
At present, the research on the method for detecting the flatness of the steel rail is mainly divided into two types, one type is contact type measurement, such as a ruler plug gauge method, and flatness detection is carried out by attaching a measuring instrument to the steel surface of the steel rail; the principle of non-contact measurement is to detect the flatness of the steel rail based on photoelectric, electromagnetic and other technologies.
Chinese patent publication No. CN108106565A discloses a rail flatness and torsion detecting apparatus and method, which measures the distance from the measured point to the sensor on the side of rail head and the bottom of rail by including a plurality of spectral confocal displacement sensors and a plurality of linear laser profile sensors; the linear laser profile sensor is placed at the top of the rail head of the steel rail, and a tread curve of the steel rail is collected; so as to obtain the flatness of the steel rail through analysis and treatment; by adopting a non-contact measurement method, the linear motion mechanism inevitably vibrates, so that the sensor is driven to vibrate together, the problem of zero point offset of the sensor can be generated, and the single-side measurement is inaccurate; the reliability of the result is poor; the contact type measurement can generate certain measuring force when the detection device is in contact with the surface of the steel rail during detection, so that the reliability of measurement can be improved.
The existing contact type measuring method is a straight ruler feeler gauge method; placing a contact line flatness detecting ruler at the longitudinal center line position of the rail top surface, and detecting gaps by using a feeler gauge, wherein the maximum detected gap is the rail flatness deviation; however, when the method is used, the flatness detection of the rail top of the steel rail can only be actually performed by manually observing multiple points, and the rail top cannot be completely detected, and meanwhile, the manual measurement is time-consuming and labor-consuming.
The problems with the prior art are therefore: how to realize automatic contact detection on rail top flatness.
Disclosure of Invention
The invention provides a steel rail flatness detection device, and aims to solve the problem of how to realize automatic contact detection of rail top flatness.
The technical scheme adopted by the invention is as follows: the steel rail flatness detection device comprises a conveying roller way for conveying steel rails, a fixed lifting unit arranged on the lower side of the conveying roller way, and a flatness detection unit crossing over the conveying roller way; the fixed lifting unit is used for lifting and fixing the steel rail; the flatness detection unit is used for detecting the flatness of the rail top of the steel rail in a contact mode; fixed supporting wheels are oppositely arranged on two sides of the conveying roller way, and gaps are reserved between the fixed supporting wheels; two driving channels are oppositely arranged on the conveying roller way, and the fixed lifting unit is positioned between the driving channels; two sides of the conveying roller way are provided with movable supporting wheels relatively, and the movable supporting wheels are positioned between the driving channels.
Further, the flatness detection unit comprises a detection support frame, a transverse sliding shaft is arranged on the detection support frame, a sliding sleeve is slidably matched with the transverse sliding shaft, a T-shaped transverse sliding frame is arranged on the sliding sleeve, and an H-shaped detection moving frame is arranged on the transverse sliding frame; drive motors are arranged on two sides of the detection support frame, drive gears are connected on the motor shafts of the drive motors in a key way, and the drive gears on the two sides are connected through chain transmission; the lower side of the transverse sliding frame is fixed with the chain; a detection ruler cylinder and a downward moving cylinder are arranged on the detection moving frame, and a push head of the detection ruler cylinder is connected with a detection ruler member; the push head of the downward moving cylinder is connected with the guide rail screw sliding table.
Further, be connected with contact detection subassembly on the slider of guide rail lead screw slip table, contact detection subassembly includes the detection mounting bracket of C shape, is equipped with laser sensor on the detection mounting bracket, and laser sensor's downside is equipped with contact detection push rod, and the push head that contact detection push rod passes the detection mounting bracket and is connected with the feeler gauge, and the tip that detects the mounting bracket is equipped with the feeler gauge layer board, and feeler gauge sliding fit is in the recess of feeler gauge layer board.
Further, two guide rail screw sliding tables are arranged, and an air injection assembly is arranged on the second guide rail screw sliding table and used for injecting high-pressure air to the joint of the detection ruler component and the rail top of the steel rail; the contact detection assembly is connected with the sliding block of the first guide rail screw sliding table through the receiving assembly, and the receiving assembly corresponds to the air injection assembly in position; the receiving assembly is used for detecting gas sprayed to the joint by the gas spraying assembly.
Further, the jet assembly comprises a folded air pipe mounting frame, and the jet head is arranged on the air pipe mounting frame and is used for being connected with a high-pressure air source in an external field.
Further, the receiving assembly comprises a folded linear receiving installation frame, and an air injection detection sensor is arranged on the receiving installation frame; the detecting rule cylinder stretches, and the detecting rule member moves downwards to contact with the rail top of the steel rail; the downward moving cylinder drives the receiving assembly and the air injection assembly to move to a position corresponding to the joint, the air injection head injects high-pressure air to the joint, and the air injection detection sensor detects the high-pressure air; when a certain position is larger than a preset threshold value, the downward moving cylinder moves upwards to drive the feeler gauge to be horizontal to the joint, and the contact detection push rod stretches, so that the end part of the feeler gauge is contacted with the joint.
Further, the detecting rule component comprises a detecting rule buffer plate and a contact line flatness detecting rule; the upper side of the detection ruler buffer plate is connected with a push head of the detection ruler cylinder; the contact line flatness detecting ruler is arranged on the lower side of the detecting ruler mounting plate, and the upper side of the detecting ruler mounting plate is in sliding fit with the detecting ruler buffer plate through the buffer shaft; the buffer shaft is penetrated with a buffer shaft spring.
Further, the movable supporting wheel is fixedly arranged with the L-shaped movable support, and the movable support plate is fixed at the side part of the conveying roller way; the movable support is in sliding fit with the movable slide shaft, and the movable slide shaft is penetrated by a movable wheel return spring; the lower side of the movable bracket is connected with the fixed lifting unit in a matching way; in the process of lifting the fixed lifting unit, the movable support is driven to slide along the movable sliding shaft, so that the movable supporting wheels move to two sides.
Further, the fixed lifting unit comprises a lifting member and a clamping member arranged on the lifting member; the lifting member comprises a lifting cylinder, the lifting cylinder is arranged on the ground through a bracket, and a lifting support plate is arranged on a push head of the lifting cylinder; the lower side of the support of the conveying roller way is provided with a first guide wheel, and the lower side of the movable support plate is provided with a second guide wheel; a linkage pulling plate is arranged at the lower side of the movable bracket; the lower side of the lifting support plate is connected with one end of a lifting linkage rope, and the other end of the lifting linkage rope bypasses the first guide wheel and the second guide wheel to be connected with a linkage pulling plate of the movable bracket; the side part of the lifting support plate is provided with a clamping member, and the clamping member corresponds to the driving channel; an N-shaped upper bracket is arranged on the upper side of the lifting support plate and is positioned between the intervals of the conveying rollers on the conveying roller way.
Further, the clamping component comprises two clamping sliding shafts connected with the lifting support plates, two clamping base plates are arranged at one sides of the clamping sliding shafts, clamping push rods are arranged on the clamping base plates, push heads of the clamping push rods penetrate through the clamping sliding frames to be connected with inverted T-shaped clamping contact plates, and clamping stretching shafts are oppositely arranged at the lower sides of the clamping contact plates; the clamping sliding shaft is in sliding fit with an N-shaped clamping sliding frame, the lower side of the clamping contact plate is in sliding fit with the clamping sliding frame through a clamping stretching shaft, and a stretching shaft spring penetrates through the clamping stretching shaft; a plurality of clamping fixing columns are arranged on the clamping surface of the clamping contact plate, the clamping fixing columns are inlaid on the clamping contact plate, necking grooves are formed in the clamping fixing columns, clamping movable columns are slidably matched in the necking grooves, and clamping springs are arranged at the bottoms of the necking grooves; the clamping movable column is extruded after contacting with the side part of the steel rail; the contact end of the clamping movable column is subjected to self-adaptive telescopic deformation under the action of reaction force so as to surround the side part of the steel rail, and the clamping movable column is used for realizing compaction, surrounding and fixing.
The beneficial effects achieved by the invention are as follows: when the steel rail is transmitted, the movable supporting wheel is positioned at the middle position, and the movable supporting wheel props against the rail web of the steel rail, so that the steel rail is prevented from toppling over in the transmission process; when the steel rail is positioned at the lower side of the flatness detection unit for detection; in the process of lifting the fixed lifting unit, the movable support is driven to slide along the movable sliding shaft, so that the movable supporting wheels move to two sides, and after the fixed lifting unit is contacted with the steel rail, the steel rail is separated from the transfer surface of the conveying roller way; and then, detecting the contact flatness of the rail top of the steel rail through a flatness detection unit.
Drawings
Fig. 1 is a schematic view of a rail flatness detecting apparatus of the present invention.
Fig. 2 is a schematic diagram of the structure of the conveying roller table of the invention.
Fig. 3 is a schematic view of the movable supporting wheel installation of the present invention.
FIG. 4 is a schematic view of the flatness detection unit location of the present invention.
Fig. 5 is a schematic structural view of the flatness detecting unit of the present invention.
Fig. 6 is a schematic view of the structure of the detection mobile frame of the present invention.
Fig. 7 is a schematic view of the structure of the receiving assembly, the air injecting assembly and the contact detecting assembly of the present invention.
FIG. 8 is a schematic view of the operation of the test tape member of the present invention.
Figure 9 is a schematic view of the position of the fixed lifting unit of the present invention.
Fig. 10 is a schematic view of the structure of the fixed lifting unit of the present invention.
Figure 11 is a schematic view of the structure of the lifting member of the invention.
Fig. 12 is a schematic view of a clamping member according to the present invention.
Fig. 13 is a second schematic view of the structure of the clamping member of the present invention.
Fig. 14 is a schematic view of a clamping contact plate structure of the present invention.
Fig. 15 is a schematic view of the operation of the clamping member of the present invention.
Fig. 16 is a second schematic view of the operation of the clamping member of the present invention.
In the figure, 1, a conveying roller way; 2. fixing a supporting wheel; 3. a drive channel; 4. a movable supporting wheel; 5. a movable bracket; 6. a movable support plate; 7. a movable slideway; 8. a movable slide shaft; 9. a movable wheel return spring; 10. detecting a supporting frame; 11. a transverse slide shaft; 12. a sliding sleeve; 13. a transverse carriage; 14. detecting a movable frame; 15. a driving motor; 16. a drive gear; 17. a chain; 18. a fixed block; 19. detecting a ruler cylinder; 20. a downward moving cylinder; 21. a guide rail screw sliding table; 22. detecting a mounting frame; 23. a laser sensor; 24. a contact detection push rod; 25. a feeler gauge; 26. a feeler gauge supporting plate; 27. an air pipe mounting rack; 28. a jet head; 29. receiving a mounting frame; 30. a jet detection sensor; 31. detecting a ruler buffer plate; 32. a contact line flatness detecting ruler; 33. a detection ruler mounting plate; 34. a buffer shaft; 35. a buffer shaft spring; 36. lifting a cylinder; 37. lifting the support plate; 38. the first guide wheel; 39. the second guide wheel; 40. linkage pulling plates; 41. lifting the linkage rope; 42. an upper bracket; 43. clamping the sliding shaft; 44. clamping the substrate; 45. clamping the push rod; 46. clamping the contact plate; 47. clamping the stretching shaft; 48. clamping the sliding frame; 49. a tension shaft spring; 50. a transverse clamping channel; 51. a transverse clamping channel sliding shaft; 52. rail bottom clamping plates; 53. clamping a channel shaft spring; 54. a transverse linkage pulling plate; 55. a guide block; 56. a guide channel; 57. a third guide wheel; 58. a fourth guide wheel; 59. clamping the linkage rope; 60. clamping the fixed column; 61. a necking groove; 62. clamping the movable column; 63. clamping springs.
Detailed Description
In order to facilitate understanding of the invention by those skilled in the art, a specific embodiment of the invention is described below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1, the invention provides a steel rail flatness detection device, which comprises a conveying roller way 1 for conveying steel rails, a fixed lifting unit arranged on the lower side of the conveying roller way 1, and a flatness detection unit crossing over the conveying roller way 1; the fixed lifting unit lifts and fixes the steel rail so that the steel rail is separated from the transfer surface of the conveying roller way 1; then, detecting the rail top of the steel rail through a flatness detection unit in a contact type; as shown in fig. 2, a synchronous roller way (a plurality of roller ways are driven to synchronously rotate by gears and chains 17) is adopted in the conveying roller way 1, fixed supporting wheels 2 are oppositely arranged on two sides of the conveying roller way 1, and gaps are reserved between the fixed supporting wheels 2; when the steel rail is transmitted, the fixed supporting wheels 2 are positioned at two sides of the rail web, so that the steel rail is prevented from toppling over in the transmission process; two driving channels 3 are oppositely arranged on the conveying roller way 1 (namely, the two roller ways are disassembled), and the fixed lifting units are positioned between the driving channels 3; two sides of the conveying roller way 1 are oppositely provided with movable supporting wheels 4, and the movable supporting wheels 4 are positioned between the driving channels 3; as shown in fig. 3, the movable supporting wheel 4 is fixedly arranged with the L-shaped movable bracket 5, and the movable supporting plate 6 is fixed at the side part of the conveying roller way 1; the movable support plate 6 is provided with a movable slide way 7, a movable slide shaft 8 is horizontally fixed in the movable slide way 7, the movable support 5 is in sliding fit on the movable slide shaft 8, a movable wheel return spring 9 penetrates through the movable slide shaft 8, and the movable wheel return spring 9 is used for pushing the movable support 5 to slide towards one side of the conveying roller way 1; the lower side of the movable bracket 5 is connected with the fixed lifting unit in a matching way; when the steel rail is transmitted, the movable supporting wheel 4 is positioned at the middle position, and the movable supporting wheel 4 props against the web of the steel rail, so that the steel rail is prevented from toppling over in the transmission process; when the steel rail is positioned at the lower side of the flatness detection unit for detection; in the process of lifting the fixed lifting unit, the movable support 5 is driven to slide along the movable sliding shaft 8, so that the movable supporting wheels 4 move to two sides, and after the fixed lifting unit is contacted with the steel rail, the steel rail is separated from the transfer surface of the conveying roller way 1; and then, detecting the contact flatness of the rail top of the steel rail through a flatness detection unit.
As shown in fig. 4-5, the flatness detecting unit comprises a detecting supporting frame 10, wherein a transverse sliding shaft 11 is arranged on the detecting supporting frame 10, a sliding sleeve 12 is in sliding fit with the transverse sliding shaft 11, a T-shaped transverse sliding frame 13 is arranged on the sliding sleeve 12, and an H-shaped detecting moving frame 14 is arranged on the four transverse sliding frames 13; the two sides of the detection support frame 10 are provided with a driving motor 15 through a motor bracket, a motor shaft of the driving motor 15 is connected with a driving gear 16 through a key, and the driving gears 16 on the two sides are in transmission connection through a chain 17; the lower side of the transverse carriage 13 is fixed with a chain 17 through a fixed block 18, and a driving motor 15 drives the chain 17 to move through a driving gear 16, so that the transverse carriage 13 moves along the transverse sliding shaft 11 to adjust the position; a detection ruler air cylinder 19 is arranged in the middle of the detection moving frame 14, a push head of the detection ruler air cylinder 19 penetrates out of the detection moving frame 14 downwards to be connected with a detection ruler member, and after the detection ruler air cylinder 19 stretches, the detection ruler member can be driven to move downwards to contact with the rail top of a steel rail to carry out flatness detection; four downward moving air cylinders 20 are arranged at the edge of the detection moving frame 14, and push heads of the downward moving air cylinders 20 penetrate through the detection moving frame 14 downwards to be connected with a guide rail screw sliding table 21; as shown in fig. 6-7, a contact detection assembly is connected to a sliding block of a guide screw sliding table 21 on one side, the contact detection assembly comprises a C-shaped detection installation frame 22, a laser sensor 23 is arranged on the detection installation frame 22, a contact detection push rod 24 is arranged on the lower side of the laser sensor 23, a push head of the contact detection push rod 24 penetrates through the detection installation frame 22 to be connected with a feeler 25, a feeler supporting plate 26 is arranged at the end part of the detection installation frame 22, the feeler 25 is in sliding fit in a groove of the feeler supporting plate 26, and the feeler supporting plate 26 supports the feeler 25 to prevent deformation of the feeler 25; the laser sensor 23 is electrically connected with the controller; as shown in fig. 8, the gauge cylinder 19 is extended and the gauge member is moved downward to contact the rail top of the rail; the downward moving cylinder 20 stretches to drive the feeler 25 to be horizontal to the joint, and the contact detection push rod 24 stretches to enable the end part of the feeler 25 to be in contact with the joint, so that when the gap requirement is met, the feeler 25 bends and is detected by the laser sensor 23; when the gap requirement is not met, the feeler 25 passes through the joint; the guide screw sliding table 21 drives the contact detection assembly to transversely move, and the detection of the joint between the detection ruler member and the steel rail is completed.
The detection efficiency is low by comprehensively detecting the gauge 25, so as to solve the problem; as shown in fig. 7, the guide screw sliding table 21 on the other side is provided with an air injection assembly, and the air injection assembly is used for injecting high-pressure air to the joint of the detection ruler component and the rail top of the steel rail; the contact detection assembly is connected with the sliding block of the guide rail screw sliding table 21 through a receiving assembly, and the receiving assembly corresponds to the air injection assembly in position; the receiving component is used for detecting the gas sprayed to the joint by the gas spraying component; as shown in fig. 7, the air injection assembly comprises a folded-line air pipe mounting frame 27, and an air injection head 28 is arranged on the air pipe mounting frame 27, wherein the air injection head 28 is used for being connected with a high-pressure air source in an external field; the receiving assembly comprises a folded-line-shaped receiving installation frame 29, an air injection detection sensor 30 is arranged on the receiving installation frame 29, the air injection detection sensor 30 is any one of a gas flow sensor and a gas pressure sensor, and the air injection detection sensor 30 is electrically connected with the controller; when flatness detection is performed, the detection ruler cylinder 19 is extended, and the detection ruler member moves downwards to be in contact with the rail top of the steel rail; the downward moving cylinder 20 drives the receiving assembly and the air injection assembly to move to the positions corresponding to the joints, the air injection head 28 injects high-pressure air to the joints, the air injection detection sensor 30 detects the high-pressure air, and the guide screw sliding table 21 drives the receiving assembly and the air injection assembly to move transversely; when a certain position is larger than a preset threshold value, the downward moving cylinder 20 moves upwards to drive the feeler gauge 25 to be horizontal to the joint, the contact detection push rod 24 stretches, so that the end part of the feeler gauge 25 contacts with the joint to perform contact detection, and the receiving component and the air injection component firstly perform non-contact detection, so that the position meeting the requirements can be rapidly eliminated; the contact detection is carried out on the suspicious position, the detection speed is improved, the higher reliability is ensured, and the detection of all positions of the rail top is realized.
The application provides a receiving component and an air injection component for non-contact detection of a specific connection structure, and also provides a detection ruler component and a contact detection component which have specific structures and can perform contact detection in a specific mode.
As shown in fig. 7 to 8, the detecting rule member includes a detecting rule buffer plate 31 and a contact line flatness detecting rule 32; the upper side of the detection ruler buffer plate 31 is connected with a push head of the detection ruler cylinder 19; the contact line flatness detecting ruler 32 is arranged on the lower side of the detecting ruler mounting plate 33, and the upper side of the detecting ruler mounting plate 33 is in sliding fit on the detecting ruler buffer plate 31 through the buffer shaft 34 (the end part of the buffer shaft 34 is provided with an anti-falling plate); the buffer shaft 34 is provided with a buffer shaft spring 35; the gauge cylinder 19 is extended, the contact line flatness gauge 32 moves downward to contact with the rail top of the rail, the buffer shaft 34 moves upward relative to the gauge buffer plate 31, and the buffer shaft spring 35 is pressed; so that the contact line flatness detecting ruler 32 is in flexible contact with the steel rail; the contact line flatness detecting rule 32 is not damaged while ensuring the pressing force.
The fixed lifting unit is used for lifting and fixing the steel rail so that the steel rail is separated from the transfer surface of the conveying roller way 1, and comprises a lifting member and a clamping member arranged on the lifting member as shown in fig. 9-11; the lifting member comprises lifting cylinders 36, wherein the lifting cylinders 36 are arranged on the ground through brackets, and the six lifting cylinders 36 are distributed on two sides and three sides; a lifting support plate 37 is arranged on the push head of the lifting cylinder 36; the lower side of the support of the conveying roller way 1 is provided with a first guide wheel 38 through a guide wheel frame, and the lower side of the movable support plate 6 is provided with a second guide wheel 39 through a guide wheel frame; the lower side of the movable bracket 5 is provided with a linkage pulling plate 40; the lower side of the lifting support plate 37 is connected with one end of a lifting linkage rope 41, and the other end of the lifting linkage rope 41 bypasses the first guide wheel 38 and the second guide wheel 39 to be connected with a linkage pulling plate 40 of the movable bracket 5; the side part of the lifting support plate 37 is provided with a clamping member which corresponds to the driving channel 3; as shown in fig. 12, an N-shaped upper bracket 42 is arranged on the upper side of the lifting support plate 37, and the upper bracket 42 is positioned between the intervals of the conveying rollers on the conveying roller table 1; the lifting cylinder 36 is extended so that the lifting support plate 37 moves upward; the lifting linkage rope 41 pulls the two outer sides of the linkage pulling plate 40 to move so that the movable supporting wheels 4 move to two sides, thereby avoiding interference; the upper bracket 42 extends upwards from the space between the conveying rollers on the conveying roller way 1, and the clamping member extends upwards through the driving channel 3; after the upper bracket 42 contacts with the bottom of the steel rail, the steel rail is jacked up upwards to be separated from the conveying roller way 1; the clamping members clamp and fix the two ends of the steel rail.
As shown in fig. 12-13, the clamping member comprises two clamping slide shafts 43 connected with the lifting support plate 37, two clamping slide shafts 43 are arranged at one side, a clamping base plate 44 is arranged at the end part of each clamping slide shaft 43, a clamping push rod 45 is arranged on each clamping base plate 44, a push head of each clamping push rod 45 penetrates out of a clamping sliding frame 48 to be connected with an inverted-T-shaped clamping contact plate 46, and a clamping stretching shaft 47 (the end part is provided with an anti-falling structure) is oppositely arranged at the lower side of each clamping contact plate 46; an N-shaped clamping sliding frame 48 is slidably matched on the clamping sliding shaft 43, the lower side of the clamping contact plate 46 is slidably matched with the clamping sliding frame 48 through a clamping stretching shaft 47, and a stretching shaft spring 49 penetrates through the clamping stretching shaft 47; as shown in fig. 12, two sides of the upper bracket 42 are oppositely provided with transverse clamping channels 50, transverse clamping channel sliding shafts 51 are arranged in the transverse clamping channels 50, and rail bottom clamping plates 52 are in sliding fit on the transverse clamping channel sliding shafts 51; a clamping channel shaft spring 53 penetrates through the transverse clamping channel sliding shaft 51; the stiffness coefficient of the extension shaft spring 49 is much greater than that of the clamping channel shaft spring 53; an arc-shaped clamping surface corresponding to the rail top of the steel rail is formed on the upper side of the rail bottom clamping plate 52; the lower side of the rail bottom clamping plate 52 is fixed with a transverse linkage pulling plate 54, a guide block 55 is arranged on the lifting supporting plate 37, and two L-shaped guide channels 56 are arranged on the guide block 55; two third guide wheels 57 and two fourth guide wheels 58 are arranged on the clamping base plate 44, the third guide wheels 57 correspond to the guide blocks 55, and the fourth guide wheels 58 correspond to the clamping contact plates 46; one end of a clamping linkage rope 59 is fixed with the transverse linkage pulling plate 54, and the other end of the clamping linkage rope 59 passes through the guide channel 56, bypasses the third guide wheel 57 and the fourth guide wheel 58, passes out of the clamping sliding frame 48 and is fixed with the clamping contact plate 46; 15-16, the clamping members clamp and fix the two ends of the steel rail; the clamping push rod 45 stretches, and the clamping contact plate 46 drives the clamping sliding frame 48 to move along the clamping sliding shaft 43; the clamping linkage rope 59 pulls the transverse linkage pulling plate 54, and the rail bottom clamping plate 52 slides along the transverse clamping channel sliding shaft 51 to clamp the rail bottom of the steel rail; after the rail bottom clamping plate 52 contacts and clamps the rail bottom of the steel rail, the clamping push rod 45 stretches to continue to stretch, the clamping stretching shaft 47 slides relative to the clamping carriage 48, and the stretching shaft spring 49 is extruded; the clamping contact plate 46 clamps and clamps the side part of the steel rail; when the contact line flatness detecting ruler 32 is in contact with the steel rail for detection, certain downward pressure is required to be kept, the clamping member clamps the steel rail in six directions through a single driving source, and the deflection of the steel rail during downward pressure is avoided.
The clamping contact plate 46 can only compress the steel rail and clamp the steel rail through friction force; as shown in fig. 14, a plurality of clamping fixing columns 60 are arranged on the clamping surface of the clamping contact plate 46, the clamping fixing columns 60 are embedded on the clamping contact plate 46, a necking groove 61 is formed in the clamping fixing columns 60, a clamping movable column 62 is slidably matched in the necking groove 61, and a clamping spring 63 is arranged at the bottom of the necking groove 61; the clamping movable column 62 is pressed after contacting with the side part of the steel rail; the contact end of the clamping movable column 62 is subjected to self-adaptive telescopic deformation under the action of reaction force so as to surround the side part of the steel rail, and the clamping movable column 62 is used for realizing compaction, surrounding and fixing.
The above-mentioned fixing means, unless described separately, are all common technical means for those skilled in the art, welding, nesting or screw fixing.
The following points need to be described:
(1) The drawings of the embodiments of the present invention relate only to the structures related to the embodiments of the present invention, and other structures may refer to the general designs.
(2) In the drawings for describing embodiments of the present invention, the thickness of layers or regions is exaggerated or reduced for clarity, i.e., the drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.
(3) The embodiments of the invention and the features of the embodiments can be combined with each other to give new embodiments without conflict.
The present invention is not limited to the above embodiments, but the scope of the invention is defined by the claims.
Claims (10)
1. The steel rail flatness detection device is characterized by comprising a conveying roller way (1) for conveying steel rails, a fixed lifting unit arranged on the lower side of the conveying roller way (1) and a flatness detection unit crossing over the conveying roller way (1); the fixed lifting unit is used for lifting and fixing the steel rail; the flatness detection unit is used for detecting the flatness of the rail top of the steel rail in a contact mode; fixed supporting wheels (2) are oppositely arranged on two sides of the conveying roller way (1), and gaps are reserved between the fixed supporting wheels (2); two driving channels (3) are oppositely arranged on the conveying roller way (1), and the fixed lifting units are positioned between the driving channels (3); two sides of the conveying roller way (1) are oppositely provided with movable supporting wheels (4), and the movable supporting wheels (4) are positioned between the driving channels (3).
2. The steel rail flatness detection device according to claim 1, characterized in that the flatness detection unit comprises a detection support frame (10), a transverse sliding shaft (11) is arranged on the detection support frame (10), a sliding sleeve (12) is slidably matched with the transverse sliding shaft (11), a T-shaped transverse sliding frame (13) is arranged on the sliding sleeve (12), and an H-shaped detection moving frame (14) is arranged on the transverse sliding frame (13); the two sides of the detection support frame (10) are provided with driving motors (15), the motor shafts of the driving motors (15) are connected with driving gears (16) in a key way, and the driving gears (16) at the two sides are in transmission connection through a chain (17); the lower side of the transverse carriage (13) is fixed with a chain (17); a detection ruler cylinder (19) and a downward movement cylinder (20) are arranged on the detection moving frame (14), and a push head of the detection ruler cylinder (19) is connected with a detection ruler member; the push head of the downward moving cylinder (20) is connected with the guide rail screw sliding table (21).
3. The steel rail flatness detection device according to claim 2, characterized in that a contact detection assembly is connected to the sliding block of the guide rail screw sliding table (21), the contact detection assembly comprises a C-shaped detection installation frame (22), a laser sensor (23) is arranged on the detection installation frame (22), a contact detection push rod (24) is arranged on the lower side of the laser sensor (23), a push head of the contact detection push rod (24) penetrates through the detection installation frame (22) to be connected with a feeler gauge (25), a feeler gauge supporting plate (26) is arranged at the end part of the detection installation frame (22), and the feeler gauge (25) is in sliding fit in a groove of the feeler gauge supporting plate (26).
4. A steel rail flatness detecting device according to claim 3, characterized in that two guide rail screw sliding tables (21) are provided, and a jet assembly is arranged on the second guide rail screw sliding table (21) and is used for jetting high-pressure gas to the joint of the detecting ruler component and the steel rail top; the contact detection assembly is connected with a sliding block of the first guide rail screw sliding table (21) through a receiving assembly, and the receiving assembly corresponds to the air injection assembly in position; the receiving assembly is used for detecting gas sprayed to the joint by the gas spraying assembly.
5. The steel rail flatness detecting device according to claim 4, wherein the air injection assembly comprises a folded air pipe mounting frame (27), the air injection head (28) is arranged on the air pipe mounting frame (27), and the air injection head (28) is used for being connected with a high-pressure air source in an external field.
6. A rail flatness detecting device according to claim 5, characterized in that the receiving assembly comprises a receiving mounting frame (29) in the shape of a fold line, the receiving mounting frame (29) being provided with an air jet detecting sensor (30); a detection ruler air cylinder (19) stretches, and a detection ruler member moves downwards to be contacted with the rail top of the steel rail; the downward moving cylinder (20) drives the receiving assembly and the air injection assembly to move to a position corresponding to the joint, the air injection head (28) injects high-pressure air to the joint, and the air injection detection sensor (30) detects the high-pressure air; the downward moving cylinder (20) moves upwards to drive the feeler gauge (25) to be horizontal to the joint, and the contact detection push rod (24) stretches, so that the end part of the feeler gauge (25) is contacted with the joint.
7. A rail flatness detection apparatus according to claim 4, characterized in that the detection ruler member comprises a detection ruler buffer plate (31) and a contact line flatness detection ruler (32); the upper side of the detection ruler buffer plate (31) is connected with a push head of the detection ruler cylinder (19); the contact line flatness detecting ruler (32) is arranged on the lower side of the detecting ruler mounting plate (33), and the upper side of the detecting ruler mounting plate (33) is in sliding fit with the detecting ruler buffer plate (31) through the buffer shaft (34); the buffer shaft (34) is provided with a buffer shaft spring (35).
8. The steel rail flatness detection device according to claim 1, characterized in that the movable supporting wheel (4) is fixedly installed with an L-shaped movable support (5), and the movable support plate (6) is fixed at the side part of the conveying roller way (1); a movable slide way (7) is arranged on the movable support plate (6), a movable slide shaft (8) is horizontally fixed in the movable slide way (7), the movable support (5) is in sliding fit on the movable slide shaft (8), and a movable wheel return spring (9) is penetrated on the movable slide shaft (8); the lower side of the movable bracket (5) is connected with the fixed lifting unit in a matching way; in the process of lifting the fixed lifting unit, the movable support (5) is driven to slide along the movable sliding shaft (8), so that the movable supporting wheels (4) move to two sides.
9. A rail flatness detecting apparatus according to claim 8, wherein the fixed lifting unit includes a lifting member and a clamping member provided above the lifting member; the lifting member comprises a lifting air cylinder (36), the lifting air cylinder (36) is arranged on the ground through a bracket, and a lifting support plate (37) is arranged on a push head of the lifting air cylinder (36); a first guide wheel (38) is arranged at the lower side of the support of the conveying roller way (1), and a second guide wheel (39) is arranged at the lower side of the movable support plate (6); a linkage pulling plate (40) is arranged at the lower side of the movable bracket (5); the lower side of the lifting support plate (37) is connected with one end of a lifting linkage rope (41), and the other end of the lifting linkage rope (41) bypasses the first guide wheel (38) and the second guide wheel (39) to be connected with a linkage pulling plate (40) of the movable bracket (5); the side part of the lifting support plate (37) is provided with a clamping member, and the clamping member corresponds to the driving channel (3); an N-shaped upper bracket (42) is arranged on the upper side of the lifting support plate (37), and the upper bracket (42) is positioned between the intervals of the conveying rollers on the conveying roller way (1).
10. The steel rail flatness detection device according to claim 9, characterized in that the clamping member comprises two clamping slide shafts (43) connected with the lifting support plates (37), two clamping slide shafts (43) are arranged on one side, clamping base plates (44) are arranged at the end parts of the clamping slide shafts (43), clamping push rods (45) are arranged on the clamping base plates (44), push heads of the clamping push rods (45) penetrate through clamping sliding frames (48) to be connected with inverted-T-shaped clamping contact plates (46), and clamping stretching shafts (47) are oppositely arranged on the lower sides of the clamping contact plates (46); an N-shaped clamping sliding frame (48) is in sliding fit with the clamping sliding shaft (43), the lower side of the clamping contact plate (46) is in sliding fit with the clamping sliding frame (48) through a clamping stretching shaft (47), and a stretching shaft spring (49) penetrates through the clamping stretching shaft (47); a plurality of clamping fixing columns (60) are arranged on the clamping surface of the clamping contact plate (46), the clamping fixing columns (60) are embedded on the clamping contact plate (46), necking grooves (61) are formed in the clamping fixing columns (60), clamping movable columns (62) are slidably matched in the necking grooves (61), and clamping springs are arranged at the bottoms of the necking grooves (61); the clamping movable column (62) is extruded after contacting with the side part of the steel rail; the contact end of the clamping movable column (62) is subjected to self-adaptive expansion deformation under the action of reaction force so as to surround the side part of the steel rail, and the clamping movable column (62) is used for realizing compaction, surrounding and fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410377723.7A CN117968618B (en) | 2024-03-29 | Steel rail flatness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410377723.7A CN117968618B (en) | 2024-03-29 | Steel rail flatness detection device |
Publications (2)
| Publication Number | Publication Date |
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| CN117968618A true CN117968618A (en) | 2024-05-03 |
| CN117968618B CN117968618B (en) | 2024-06-21 |
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