CN114934415A - Method for quickly polishing rail connection welding spot - Google Patents

Abstract

The invention discloses a method for quickly polishing a rail connection welding spot, and relates to the field of urban rail maintenance. A rail connecting welding spot quick polishing method comprises the following steps: firstly, placing a machine body on the upper surface of a rail, and fixing the machine body on the rail by using a limiting plate; secondly, driving the torsion plate and driving the transmission shaft to rotate, and driving the fastening mechanism to be tightly attached to the rail through the transmission element so as to tightly connect the machine body with the rail; and thirdly, the driving torsion plate drives the elastic block to horizontally move and deform through the transmission shaft, and meanwhile, the sliding block is extruded downwards, so that the sliding block drives the connecting block to downwards move, and the polishing mechanism is not contacted with the surface of the rail.

Description

Method for quickly polishing rail connection welding spot

Technical Field

The invention relates to the field of urban rail maintenance, in particular to a method for quickly polishing a rail connection welding spot.

Background

The laying of railway rail is with a plurality of sections rail welding and form an holistic track, but when two sets of adjacent rail welding, because of the reason of welding technique causes the surperficial welding department of track to appear protrudingly, and in order to ensure the safe and stable operation on the track of train, must keep the level and smooth of track surface, consequently, need polish the processing operation to its welding point after the track welding is accomplished to guarantee the good planarization of track. If the patent numbers are: the polishing mechanism for the track welding spot, disclosed in the invention patent of CN elastic block 11 fan-shaped rotating block 29, connecting block 17 fan-shaped rotating block 297A, comprises a steel rail, wherein a walking support is clamped on the surface of the steel rail, a track sliding plate is arranged at the bottom end of an inner cavity of the walking support, a track sliding groove which is communicated from left to right is formed in the track sliding plate, a fixed sliding groove which is communicated from top to bottom is formed in the track sliding plate, an arc-shaped slide way is fixedly arranged at the top of the track sliding plate and in the inner cavity of the walking support, the polishing mechanism is movably sleeved in the track sliding plate and comprises a positioning sliding sleeve, the outer surface of the positioning sliding sleeve is clamped in the fixed sliding groove on the track sliding plate, and two sides of the outer surface of the positioning sliding sleeve extend into the track sliding groove on the track sliding plate.

The polishing method is characterized in that the polishing mechanism is manually operated in the polishing operation, the pushing speed for manually operating the polishing mechanism is different, the polishing time of the same polishing surface is different, the polishing degree of the same polishing surface of a rail welding point is different, the overall polishing quality is uneven, and meanwhile, due to the curved surface structural design of the rail surface, when the existing rail welding polishing equipment mechanism polishes the welding point, the polishing mechanism needs to be integrally swung to enable the polishing disc on the polishing mechanism to perform polishing operation along the curved surface track of the rail surface, so that the operation of the rail welding polishing equipment mechanism in the using process is complicated, the physical consumption of operators is large, the polishing accuracy and stability are poor, and the polishing efficiency of the rail welding point is low.

Disclosure of Invention

The invention aims to provide a method for quickly polishing a rail connecting welding point, which aims to solve the problems of uneven polishing quality of manual polishing operation, poor stability of a polishing mechanism in a traditional polishing mode in the using process and the like in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a rail connecting welding spot rapid grinding method comprises the following steps: firstly, placing a machine body on the upper surface of a rail, and fixing the machine body on the rail by using a limiting plate; secondly, driving the torsion plate and driving the transmission shaft to rotate, and driving the fastening mechanism to be tightly attached to the rail through the transmission element so as to tightly connect the machine body with the rail; thirdly, the driving torsion plate drives the elastic block to horizontally move and deform through the transmission shaft, and meanwhile, the sliding block is extruded downwards, so that the sliding block drives the connecting block to downwards move, and the polishing mechanism is enabled to remove the contact of the surface of the rail; fourthly, starting the driving mechanism to drive the polishing mechanism to horizontally move, and simultaneously starting the polishing mechanism to polish the surface of the rail; and fifthly, closing the driving mechanism and the grinding mechanism, extracting the limiting plate from the machine body, and taking down the machine body from the rail.

Preferably, grinding machanism is including setting up removal chamber that the opening down was in the connecting block, setting in removal intracavity and can horizontal displacement the module of polishing, set up in the module of polishing and the opening main chamber of polishing down, set up and be in one side of main chamber of polishing and opening rotation chamber down, set up the drive chamber that communicates each other at the upper end wall of rotating the chamber and set up the swing subassembly in rotating chamber and drive chamber, the main chamber of polishing is kept away from one side of rotating the chamber is provided with opening elasticity chamber down, elasticity intracavity and the upside in elasticity chamber is provided with response subassembly, be provided with main motor in the main chamber of polishing's the end wall, main motor internal power is connected with main axle of polishing, main epaxial main polishing wheel that is provided with can with rail surface contact.

Preferably, the swing assembly comprises a fan-shaped rotating block which is rotatably arranged in the rotating cavity, a curved surface grinding cavity with a downward opening is arranged in the fan-shaped rotating block, a curved surface grinding motor is symmetrically arranged in the end wall of one side of the curved surface grinding cavity relative to the rail, a curved surface grinding shaft which extends into the curved surface grinding cavity is connected in the curved surface grinding motor in a power mode, and a curved surface grinding wheel which can be in surface contact with the rail is fixed on the curved surface grinding shaft.

Preferably, the swing assembly further comprises an auxiliary motor arranged in the end wall of one side of the driving cavity, an auxiliary shaft extending into the driving cavity is connected to the auxiliary motor in a power mode, and a sector gear meshed with the outer side of the upper portion of the sector rotating block is fixed on the auxiliary shaft.

Preferably, the induction assembly comprises a sliding rod arranged in the elastic cavity, the lower end of the sliding rod is provided with an elastic baffle capable of generating deformation, an elastic element is arranged between the upper end of the sliding rod and the upper end wall of the elastic cavity, a control module is arranged above the elastic cavity, a bending sensor is arranged in the elastic baffle, the upper end of the bending sensor penetrates through the sliding rod and the control module, and a second wire for controlling the auxiliary motor to start and stop is connected between the control module and the auxiliary motor.

Preferably, the driving mechanism comprises a feeding motor arranged in the end wall at one side of the moving cavity, a feeding screw rotatably connected with the end wall at the other side of the moving cavity is connected with the feeding motor in a power mode, the feeding screw is in threaded connection with the polishing module, and a first lead for controlling the rotating speed of the feeding motor is connected between the feeding motor and the control module.

Preferably, the fastening mechanism comprises a containing cavity symmetrically arranged on two sides of the connecting block, a pressure block is arranged in the containing cavity, a buffer cavity with an upward opening is formed in the pressure block, a thread block is arranged in the buffer cavity, a buffer element is connected between the thread block and the lower end wall of the buffer cavity, and a threaded shaft is connected to the thread block in a threaded manner.

Preferably, the connecting block is connected with the machine body through a connecting element, and the threaded shaft is connected with the transmission shaft through the transmission element.

Preferably, the elastic baffle can drive the bending sensor to bend and generate an electric signal, and the electric signal generated by the bending sensor can be transmitted to the control module.

Compared with the prior art, the invention has the beneficial effects that: through reasonable structural design, the device can be constantly connected with the rail in the working state and still cannot be disconnected with the rail when encountering large vibration, thereby improving the overall stability of the device.

Meanwhile, the grinding machine can simultaneously grind the curved surface part and the straight surface part of the upper surface of the rail, so that the whole grinding efficiency is improved, and in the grinding operation of the curved surface part, because the grinding speed is constant, the quality of the ground curved surface part is approximately the same, the problem that the grinding degrees of the same grinding surface are different in the traditional grinding mode is effectively solved, and the whole grinding quality is improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a sectional view of the structure taken along the line A-A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is a cross-sectional view of the structure of FIG. 1 at C;

FIG. 5 is a cross-sectional view of the structure of FIG. 3 at D;

FIG. 6 is a schematic view of the structure of the installation site of the present invention;

fig. 7 is a schematic perspective view of a grinding mechanism according to the present invention.

In the figure: 10. a body; 11. an elastic block; 13. a slider; 14. a connecting element; 16. a moving chamber; 17. connecting blocks; 18. a limiting plate; 19. a receiving cavity; 20. a threaded shaft; 21. a torsion plate; 22. a drive shaft; 23. a transmission element; 24. polishing the module; 25. a drive chamber; 26. an auxiliary shaft; 27. a sector gear; 28. a curved surface grinding cavity; 29. a sector turning block; 30. a curved surface grinding shaft; 31. grinding wheels are arranged on the curved surfaces; 32. a feed motor; 34. an auxiliary motor; 36. a first conductive line; 37. a second conductive line; 38. a control module; 40. a feed screw; 42. an elastic element; 43. an elastic cavity; 44. a slide bar; 45. an elastic baffle; 46. a bending sensor; 47. a primary grinding chamber; 48. a main motor; 49. a main grinding shaft; 50. a main grinding wheel; 51. polishing the motor on the curved surface; 52. a rotation chamber; 53. a thread block; 54. a buffer chamber; 55. a buffer element; 56. and (4) a pressure block.

Detailed Description

Referring to fig. 1-7, the present invention provides a technical solution: a rail connection welding spot rapid grinding method is characterized in that: a rail connecting welding spot quick polishing method comprises the following steps: firstly, placing the machine body 10 on the upper surface of a rail, and fixing the machine body 10 on the rail by using a limiting plate 18; secondly, driving the torsion plate 21 and driving the transmission shaft 22 to rotate, and driving the fastening mechanism to be tightly attached to the rail through the transmission element 23, so that the machine body 10 is tightly connected with the rail; thirdly, the driving torsion plate 21 drives the elastic block 11 to horizontally move and deform through the transmission shaft 22, and meanwhile, the sliding block 13 is extruded downwards, so that the sliding block 13 drives the connecting block 17 to move downwards, and the grinding mechanism is enabled to be in contact with the surface of the rail; fourthly, starting the driving mechanism to drive the polishing mechanism to horizontally move, and simultaneously starting the polishing mechanism to polish the surface of the rail; and step five, closing the driving mechanism and the grinding mechanism, drawing the limiting plate 18 out of the machine body 10, and taking down the machine body 10 from the rail.

In one embodiment, the grinding mechanism comprises a moving cavity 16 with a downward opening, a grinding module 24, a main grinding cavity 47, a rotating cavity 52, a driving cavity 25 and a swinging component, wherein the moving cavity 16 is arranged in the connecting block 17 and can be horizontally displaced, the main grinding cavity 47 is arranged in the grinding module 24 and has a downward opening, the rotating cavity 52 is arranged on one side of the main grinding cavity 47 and has a downward opening, the driving cavity 25 is arranged on the upper end wall of the rotating cavity 52 and is communicated with the rotating cavity 25, the swinging component is arranged in the rotating cavity 52 and the driving cavity 25, an elastic cavity 43 with a downward opening is arranged on one side of the main grinding cavity 47, the elastic cavity 43 and the upper side of the elastic cavity 43 are provided with sensing components, a main motor 48 is arranged in the end wall of one side of the main grinding cavity 47, a main grinding shaft 49 is dynamically connected in the main motor 48, and a main grinding wheel 50 capable of being in surface contact with a rail is arranged on the main grinding shaft 49.

In one embodiment, the swing assembly comprises a fan-shaped rotating block 29 rotatably arranged in a rotating chamber 52, a curved surface grinding chamber 28 with a downward opening is arranged in the fan-shaped rotating block 29, a curved surface grinding motor 51 is symmetrically arranged in one side end wall of the curved surface grinding chamber 28 relative to the rail, a curved surface grinding shaft 30 extending into the curved surface grinding chamber 28 is dynamically connected in the curved surface grinding motor 51, and a curved surface grinding wheel 31 capable of contacting with the surface of the rail is fixed on the curved surface grinding shaft 30.

In one embodiment, the swing assembly further comprises an auxiliary motor 34 disposed in one side end wall of the driving chamber 25, an auxiliary shaft 26 extending into the driving chamber 25 is power-connected to the auxiliary motor 34, and a sector gear 27 engaged with the upper outer side of the sector block 29 is fixed to the auxiliary shaft 26.

In one embodiment, the sensing assembly includes a sliding rod 44 disposed in an elastic cavity 43, an elastic baffle 45 capable of generating deformation is disposed at a lower end of the sliding rod 44, an elastic element 42 is disposed between an upper end of the sliding rod 44 and an upper end wall of the elastic cavity 43, a control module 38 is disposed above the elastic cavity 43, a bending sensor 46 is disposed in the elastic baffle 45, an upper end of the bending sensor 46 penetrates through the sliding rod 44 and is connected to the control module 38, and a second lead 37 for controlling the auxiliary motor 34 to start and stop is connected between the control module 38 and the auxiliary motor 34.

In one embodiment, the driving mechanism includes a feed motor 32 disposed in one end wall of the moving chamber 16, a feed screw 40 rotatably connected to the other end wall of the moving chamber 16 is connected to the feed motor 32, the feed screw 40 is connected to the grinding module 24 by a screw, and a first wire 36 for controlling the rotation speed of the feed motor 32 is connected between the feed motor 32 and the control module 38.

In one embodiment, the fastening mechanism comprises a receiving cavity 19 symmetrically arranged on two sides of the connecting block 17, a pressure block 56 is arranged in the receiving cavity 19, a buffer cavity 54 with an upward opening is arranged in the pressure block 56, a thread block 53 is arranged in the buffer cavity 54, a buffer element 55 is connected between the thread block 53 and the lower end wall of the buffer cavity 54, and a thread shaft 20 is screwed in the thread block 53.

In one embodiment, the connecting block 17 is connected with the machine body 10 through a connecting element 14, and the threaded shaft 20 is connected with the transmission shaft 22 through a transmission element 23.

In one embodiment, the elastic barrier 45 can bend the bending sensor 46 and generate an electrical signal, and the electrical signal generated by the bending sensor 46 can be transmitted to the control module 38.

When in use: the machine body 10 is placed on the upper end of the rail, at which time the upper end surface of the machine body 10 is parallel to the horizontal plane, the limit plates 18 are inserted into the machine body 10 from the front and rear ends thereof and are in contact with the rail, so that the machine body 10 is tightly connected to the rail, the torsion plate 21 is driven to rotate, thereby driving the transmission shaft 22 to rotate, thereby rotating the threaded shaft 20 via the transmission member 23, thereby moving the threaded block 53 downward, thereby moving the pressure block 56 downward, thereby bringing the pressure block 56 into contact with the rail surface, at which time the buffer member 55 can play a buffer role, and at the same time the transmission shaft 22 drives the elastic block 11 to horizontally move to the right side, thereby moving the sliding block 13 downward, at which time the connection member 14 is stretched, thereby causing the connection block 17 to drive the grinding module 24 to move downward, and causing the curved surface grinding wheel 31 and the main grinding wheel 50 to be in contact with the curved surface on the front and rear sides of the rail and the upper surface of the rail, respectively, and then the feeding motor 32 is started, at this time, the feeding motor 32 rotates faster, so that the polishing module 24 moves to the right side rapidly, when the elastic baffle 45 contacts the excessive protruding part of the welding point, the elastic baffle 45 bends due to the restriction of the protruding part, so that the bending sensor 46 bends, and generates an electrical signal to be transmitted to the control module 38, so that the control module 38 controls the auxiliary motor 34 to start through the second wire 37, and controls the feeding motor 32 to reduce the rotation speed through the first wire 36, so that the horizontal movement speed of the polishing module 24 is reduced, at the same time, the main motor 48 starts, the main polishing shaft 49 drives the main polishing wheel 50 to rotate at a high speed through the main polishing shaft 48 after the main motor 48 starts, so as to polish the excessive part of the upper surface of the rail welding point, and the auxiliary motor 34 drives the sector gear 27 to rotate back and forth through the auxiliary shaft 26, so that the sector rotating block 29 rotates back and forth at a small angle in the rotating chamber 52, meanwhile, after the curved surface grinding motor 51 is started, the curved surface grinding wheel 31 is driven to rotate at a high speed through the curved surface grinding shaft 30, so that the curved surface grinding wheel 31 performs grinding operation with radian on curved surfaces on the front side and the rear side of the rail, when the grinding module 24 moves to the rightmost side of the moving cavity 16, the auxiliary motor 34, the curved surface grinding motor 51 and the main motor 48 are closed, the feeding motor 32 rotates reversely rapidly, the grinding module 24 returns to the initial position, and then the grinding operation is performed again through the above process, so that the operation is reciprocating.

Claims (9)

1. A rail connection welding spot quick polishing method is characterized by comprising the following steps: the polishing method comprises the following steps:

firstly, placing a machine body (10) on the upper surface of a rail, and fixing the machine body (10) on the rail by using a limiting plate (18);

secondly, driving the torsion plate (21) and driving the transmission shaft (22) to rotate, and driving the fastening mechanism to be tightly attached to the rail through the transmission element (23), so that the machine body (10) is tightly connected with the rail;

thirdly, the driving torsion plate (21) drives the elastic block (11) to horizontally move and deform through the transmission shaft (22), and meanwhile, the sliding block (13) is extruded downwards, so that the sliding block (13) drives the connecting block (17) to downwards move, and the grinding mechanism is enabled to remove the contact of the surface of the rail;

fourthly, starting the driving mechanism to drive the polishing mechanism to horizontally move, and simultaneously starting the polishing mechanism to polish the surface of the rail;

and fifthly, closing the driving mechanism and the grinding mechanism, drawing the limiting plate (18) out of the machine body (10), and taking down the machine body (10) from the rail.

2. A method of rapidly grinding a rail joint according to claim 1, wherein: the polishing mechanism comprises a moving cavity (16) with a downward opening, a polishing module (24) which is arranged in the moving cavity (16) and can horizontally displace, a main polishing cavity (47) which is arranged in the polishing module (24) and has a downward opening, a rotating cavity (52) which is arranged at one side of the main polishing cavity (47) and has a downward opening, a driving cavity (25) which is arranged at the upper end wall of the rotating cavity (52) and is communicated with each other, and a swinging assembly which is arranged in the rotating cavity (52) and the driving cavity (25), wherein an elastic cavity (43) with a downward opening is arranged at one side of the main polishing cavity (47) far away from the rotating cavity (52), sensing assemblies are arranged in the elastic cavity (43) and at the upper side of the elastic cavity (43), a main motor (48) is arranged in the end wall at one side of the main polishing cavity (47), and a main polishing shaft (49) is dynamically connected in the main motor (48), the main grinding shaft (49) is provided with a main grinding wheel (50) capable of contacting with the surface of the rail.

3. A method as claimed in claim 2, wherein the method comprises the steps of: the swing subassembly is including rotating the setting and being in rotate fan-shaped turning block (29) in chamber (52), be provided with opening curved surface grinding chamber (28) down in fan-shaped turning block (29), be provided with curved surface grinding motor (51) about the rail symmetry in the side end wall in curved surface grinding chamber (28), curved surface grinding motor (51) internal power is connected with and extends to curved surface grinding shaft (30) in curved surface grinding chamber (28), curved surface grinding shaft (30) are gone up and are fixed with curved surface grinding wheel (31) that can with rail surface contact.

4. A method as claimed in claim 3, wherein the method comprises the steps of: swing assembly is still including setting up auxiliary motor (34) in the one side end wall of drive chamber (25), power connection has in auxiliary motor (34) extends to auxiliary shaft (26) in drive chamber (25), be fixed with on auxiliary shaft (26) with fan-shaped turning block (29) top outside meshing's sector gear (27).

5. A method as claimed in claim 4, wherein the method comprises the steps of: the response subassembly is including setting up slide bar (44) in elasticity chamber (43), the lower extreme of slide bar (44) is provided with elastic baffle (45) that can produce deformation, the upper end of slide bar (44) with be provided with elastic element (42) between the upper end wall in elasticity chamber (43), the top in elasticity chamber (43) is provided with control module (38), be provided with in elastic baffle (45) and buckle sensor (46), the upper end of buckling sensor (46) is passed slide bar (44) and control module (38) are connected, control module (38) with be connected with control between auxiliary motor (34) second wire (37) that auxiliary motor (34) opened and shut.

6. A method as claimed in claim 5, wherein the method comprises the steps of: the driving mechanism comprises a feeding motor (32) arranged in the end wall of one side of the moving cavity (16), a feeding screw (40) in the end wall of the other side of the moving cavity (16) is in power connection with the feeding motor (32), the feeding screw (40) is in threaded connection with the grinding module (24), and a first lead (36) for controlling the rotating speed of the feeding motor (32) is connected between the feeding motor (32) and the control module (38).

7. A method of rapidly grinding a rail joint according to claim 1, wherein: the fastening mechanism comprises a containing cavity (19) symmetrically arranged on two sides of the connecting block (17), a pressure block (56) is arranged in the containing cavity (19), a buffer cavity (54) with an upward opening is arranged in the pressure block (56), a thread block (53) is arranged in the buffer cavity (54), a buffer element (55) is connected between the thread block (53) and the lower end wall of the buffer cavity (54), and a thread shaft (20) is connected with the thread block (53) in a threaded manner.

8. A method as claimed in claim 7, wherein the method comprises the steps of: the connecting block (17) is connected with the machine body (10) through a connecting element (14), and the threaded shaft (20) is connected with the transmission shaft (22) through a transmission element (23).

9. A method of rapidly grinding a rail attachment weld according to claim 5, wherein: the elastic baffle (45) can drive the bending sensor (46) to bend and generate an electric signal, and the electric signal generated by the bending sensor (46) can be transmitted to the control module (38).

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