A type of double-rail support rail grinding machine

Abstract

This invention relates to a double-track supported rail grinding machine, belonging to the field of rail grinding technology. It solves the technical problems of cumbersome rail replacement, dangerous grinding operations for workers, and the inability to guarantee a safe grinding environment. The machine includes a main support frame with a sliding main frame, a sliding groove, a sliding rod inside the sliding groove, a locking groove in the sliding groove, a reset groove on the sliding main frame, a curved groove on the sliding rod, a reset push plate at the top of a spherical slider, a push spring on one side of the reset push plate, a reset push frame at one end of the push spring, a connecting frame inside the secondary sliding frame, an engine frame on the connecting frame, and a drive engine at the top of the engine frame. This invention moves the sliding main frame by pushing the sliding rod, and by adjusting and controlling the position of the sliding main frame, it can adjust and grind different rails without removing the structure, reducing the need for significant structural adjustments.

Description

Technical Field

[0001] This invention relates to the field of rail grinding technology, specifically a rail grinding machine with double-rail support. Background Technology

[0002] Rail grinding machines are essential equipment for railway maintenance, primarily used to repair surface damage and improve rail condition. They can grind away wear, cracks, and other defects on the rail surface, optimize the wheel-rail contact profile, reduce noise and vibration, decrease wheel-rail wear, and extend rail lifespan. Simultaneously, they can eliminate rail wavy wear, refine welds, adjust rail height, and support track maintenance work. Based on operating methods, they are available in fixed and mobile types, flexibly meeting the needs of different scenarios such as routine maintenance and emergency repairs.

[0003] Rail grinding machines include stationary grinding machines, internal combustion-powered grinding machines, and electric-powered grinding machines. Among them, internal combustion-powered grinding machines, powered by fuel, have significant advantages. They are highly mobile, requiring no external power source, and can operate flexibly in areas without power grids, such as remote railway lines, making them particularly suitable for emergency repairs and maintenance of remote lines. The equipment is easy to start and can be quickly deployed, adapting to sudden grinding needs in railway maintenance. Furthermore, its power output is stable, meeting the power requirements of different grinding conditions. It performs exceptionally well in grinding operations on complex terrain or heavy-haul railways, making it an important piece of equipment for railway field maintenance.

[0004] Rail grinding machines are divided into two types: single-rail support and double-rail support. However, the existing double-rail support structure can only grind a single rail in actual use. When grinding the other rail, two workers are required to lift the structure and change its direction, which is quite troublesome in actual work.

[0005] Furthermore, staff also reported that during the grinding control process, because the overlapping shaft is directly overlapped on the surface of the rail, in order to ensure the actual stability of the structure during grinding, it is necessary to stand inside the rail and manually push the grinding structure. However, the ground inside the rail is complex, with stones or sleepers, etc., so such work often poses serious safety hazards.

[0006] Meanwhile, the existing structure lacks a flexible and reasonable design for shielding and protecting the sanding process and for collecting debris, which affects the safety of workers and seriously impacts the working environment.

[0007] Based on this, the present invention provides a cross-double-rail supported rail grinding machine to solve the above problems. Summary of the Invention

[0008] In view of the above situation and to overcome the defects of the prior art, the present invention provides a double-track supported rail grinding machine. The present invention has an ingenious structure and focuses on practicality, effectively solving the technical problems of troublesome replacement of grinding tracks, dangerous grinding operations for workers, and inability to guarantee the grinding environment.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A double-track supported rail grinding machine includes a main support frame, a sliding main frame slidably connected to the main support frame, a sliding groove on the main support frame, a sliding rod disposed inside the sliding groove, and several slots fixedly installed on the sliding groove. These slots are evenly spaced and interconnected with the sliding groove, allowing the sliding rod to engage within the slots. The sliding main frame is movably engaged within both ends of the sliding rod. A reset groove is provided on the sliding main frame, and a curved groove is provided on the sliding rod. A spherical slider is slidably connected inside the curved groove, and a reset push plate is fixedly installed on the top of the spherical slider. A push spring is fixedly installed on one side of the reset push plate, and a reset push frame is fixedly installed on one end of the push spring. A secondary sliding frame is slidably connected to the sliding main frame on one side of the reset push frame. A connecting frame is rotatably connected to the inner side of the secondary sliding frame. An engine frame is fixedly installed on the connecting frame. A drive engine is fixedly installed on the top of the engine frame. A support wheel is rotatably connected to the secondary sliding frame. The support wheel rests on the surface of the sliding main frame. A reset limiting sleeve is fixedly installed in the middle of the reset push plate. A reset push rod fixedly installed on one side of the reset push frame is slidably connected through the reset limiting sleeve.

[0011] Preferably, a mounting frame is fixedly installed below the main support frame, a sliding sleeve is slidably connected to the mounting frame, a limit frame is fixedly installed on the top of the sliding sleeve, a push frame is fixedly installed on one side of the limit frame, a multi-stage telescopic frame overlapping the limit frame is fixedly installed at the bottom of the sliding main frame, an adjusting arm is rotatably connected to the inner side of the mounting frame, there are two adjusting arms, meshing wheels are fixedly installed on the surface of both adjusting arms, a fastening wheel is rotatably connected to the inner side of the bottom of both adjusting arms, an extension block is fixedly installed on one side of one of the adjusting arms, a through hole is opened on the inner side of the extension block, the push frame is slidably connected to the inner side of the through hole, and the push frame can drive one of the adjusting arms to rotate through the extension block and the through hole.

[0012] Preferably, a fixing rod is fixedly installed on the inner side of the mounting frame, the sliding sleeve is slidably connected to the surface of the fixing rod, a return spring sleeved on the surface of the fixing rod is fixedly installed between the mounting frame and the sliding sleeve, and a handrail is fixedly installed on the sliding main frame.

[0013] Preferably, an installation block is fixedly installed at the bottom of the sliding main frame, and a second threaded screw is rotatably connected to the inner side of the installation block. A secondary sliding frame is threadedly connected to the surface of the second threaded screw.

[0014] Preferably, a first push block is fixedly installed on both sides of the secondary sliding frame, a first welding block is fixedly installed on both sides of the main support frame, a first sliding plate is slidably connected to the middle position of the first welding block, a first fixing block is fixedly installed on the top of the first sliding plate, a first spring is fixedly installed between the first fixing block and the first welding block, a second push block is fixedly installed on the bottom of the first sliding plate, a second welding block is fixedly connected to the bottom of the first welding block, a second sliding plate is slidably connected to the middle position of the second welding block, a second fixing block is fixedly connected to the top of the second sliding plate, and a second spring is fixedly installed between the second fixing block and the second welding block.

[0015] Preferably, a mounting plate is fixedly installed on one side of the connecting frame, a first connecting rod is hinged to the mounting plate, a support plate is fixedly installed at one end of the first connecting rod, a tension rod is slidably connected to the support plate, a chain is hinged between the tension rod and the mounting plate, a circular plate is fixedly installed at one end of the tension rod, a tension spring is fixedly installed between the circular plate and the support plate, a fixing frame is fixedly installed at the top of the secondary sliding frame, a first connecting sleeve is fixedly installed at the bottom of the fixing frame, the first connecting rod is slidably connected inside the first connecting sleeve, a connecting shaft is rotatably connected inside the fixing frame, a drive sprocket that meshes with the chain is fixedly installed on the surface of the connecting shaft, and an angle drive wheel is fixedly installed at one end of the connecting shaft.

[0016] Preferably, a fixed gear is fixedly mounted on the surface of the connecting shaft, and a limiting block adapted to the fixed gear is rotatably connected to the fixed frame.

[0017] Preferably, a drive shaft is fixedly installed at the bottom of the drive engine, a first threaded screw is rotatably connected inside the connecting frame, a height drive wheel is fixedly installed at the top of the first threaded screw, a first threaded sleeve is threadedly connected to the surface of the first threaded screw, a lifting plate is fixedly installed on one side of the first threaded sleeve, a limit sleeve is fixedly installed on one side of the lifting plate, a support slider is rotatably connected to the inner side of the limit sleeve, the lifting and lowering adjustment of the limit sleeve can drive the support slider to rise and fall, a support sleeve is fixedly installed on the inner side of the support slider and slidably connected to the surface of the drive shaft, the drive shaft can drive the support sleeve to rotate, a grinding block mounting port is fixedly installed at the bottom of the support sleeve, and a grinding block is fixedly installed at the bottom of the grinding block mounting port.

[0018] Preferably, a limiting groove is provided inside the connecting frame, and a limiting slider is slidably connected inside the limiting groove. The limiting slider is fixedly installed on one side of the first threaded sleeve.

[0019] Preferably, an extension frame is fixedly installed on the top of the main support frame, and a handle is hinged inside the extension frame. An overlapping frame is fixedly installed on one side of the mounting frame, and an overlapping shaft is hinged to the inner bottom of the overlapping frame.

[0020] The present invention has the following technical advantages.

[0021] 1. This invention rotates the sliding rod inside the sliding groove, causing it to disengage from the groove. The curved groove inside the rotating sliding rod also pushes the spherical slider to move in the track of the reset groove. This causes the spherical slider in each group to move the reset push plate and reset push frame in one direction. The reset push frame can push the secondary sliding frame towards the grinding position. This auxiliary pushing process can shorten the subsequent adjustment range and improve the adjustment efficiency when changing tracks. After the sliding rod is disengaged, the sliding rod pushes the sliding main frame to move accordingly. By adjusting and controlling the position of the sliding main frame, different rails can be adjusted and ground without removing the structure, reducing the need for large-scale structural adjustments. At the same time, the movement of the sliding main frame can push the multi-stage telescopic frame close to the ungrinded rail to telescopically move after contacting the limit frame. Finally, the multi-stage telescopic frame pulls the limit frame and push frame to move. The push frame pushes the adjusting arm to rotate, thereby driving the two fastening wheels to move inward. The fastening wheels limit and fasten the ungrinded rail. When the worker pushes from one side, the stability of the structure movement can be improved.

[0022] 2. This invention rotates the adjusting wheel, causing the second threaded screw to rotate as well. This causes the secondary sliding frame to move, and simultaneously causes the first push block to move as well. The position of the secondary sliding frame is adjusted and controlled according to the actual grinding requirements. When the secondary sliding frame is moved to the appropriate position, the inclined surface of the first push block gradually contacts and presses down on the first fixed block, causing the first sliding plate and the second push block to descend. The inclined surface of the second push block presses and pushes the second sliding plate inward, controlling the extension of the second sliding plate. At this time, the debris generated during the grinding work can be shielded and collected by the extended second sliding plate. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention.

[0025] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0026] Figure 3This is a schematic diagram of the assembly structure of the main support frame, sliding rod, and height drive wheel of the present invention.

[0027] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B.

[0028] Figure 5 This is a schematic diagram of the assembly structure of the sliding main frame, connecting frame and drive engine in this invention.

[0029] Figure 6 For the present invention Figure 5 A magnified structural diagram at point C.

[0030] Figure 7 This is a schematic diagram of the assembly structure of the adjusting wheel, mounting block, second threaded screw, and secondary sliding frame of the present invention.

[0031] Figure 8 This is a schematic diagram of the assembly structure of the main support frame, the second connecting rod, and the first push block of the present invention.

[0032] Figure 9 For the present invention Figure 8 A magnified structural diagram at point D.

[0033] Figure 10 This is a schematic diagram of the assembly structure of the drive engine, height drive wheel, and fixed frame of the present invention.

[0034] Figure 11 For the present invention Figure 10 A magnified structural diagram at point E in the middle.

[0035] Figure 12 This is a schematic diagram of the assembly structure of the overlapping shaft, overlapping frame, and handle of the present invention.

[0036] Figure 13 For the present invention Figure 12 A magnified structural diagram at point F in the middle.

[0037] Figure label:

[0038] 1. Sliding main frame; 2. Overlapping shaft; 3. Overlapping frame; 4. Extension frame; 5. Handle; 6. Handrail; 7. Drive engine; 8. Engine frame; 9. Angle drive wheel; 10. Height drive wheel; 11. Secondary sliding frame; 12. Support wheel; 13. Connecting frame; 14. Limiting groove; 15. Limiting slider; 16. First threaded sleeve; 17. First threaded screw; 18. Lifting plate; 19. Support sleeve; 20. Supporting slider; 21. Limiting sleeve; 22. Drive shaft; 23. Grinding block mounting port; 24. Grinding block; 25. Main support frame; 26. Fixing frame; 27. Multi-stage telescopic frame; 28. Limiting block; 29. ​​Chain; 30. Support plate; 31. Drive sprocket; 32. Fixed gear; 33. Connecting shaft; 34. First connecting sleeve; 35. Mounting plate; 36. First connecting rod; 37. Fixing rod; 38. Reset spring 39. Spring; 40. Sliding sleeve; 41. Limiting bracket; 42. Pushing bracket; 43. Adjusting arm; 44. Through hole; 45. Engaging wheel; 46. Fastening wheel; 47. Sliding groove; 48. Sliding rod; 49. Slot; 50. Adjusting wheel; 51. Mounting block; 52. Second threaded screw; 53. Second connecting rod; 54. First push block; 55. First welding block; 56. First fixing block; 57. First sliding plate; 58. Second push block; 59. Second sliding plate; 60. Second welding block; 61. Second fixing block; 62. Second spring; 63. Mounting bracket; 64. Tensioning rod; 65. Tensioning spring; 66. Circular plate; 67. Curved slide groove; 68. Spherical slider; 69. Reset push plate; 70. Reset push rod; 71. Reset limiting sleeve; 72. Push spring; 73. Reset push bracket; 74. Reset slide groove. Detailed Implementation

[0039] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 13 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0040] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0041] This invention relates to a double-track supported rail grinding machine, comprising a main support frame 25, which is a structure composed of two horizontally placed metal rods and two vertically placed bent metal rods. A sliding main frame 1 is slidably connected to the main support frame 25. The sliding main frame 1 is composed of two vertically placed parallel hollow cylinders and two horizontally placed parallel hollow metal rods. A sliding groove 46 is provided on the main support frame 25. The sliding groove 46 is a combination of a long sliding groove and multiple small sliding grooves, and the multiple small sliding grooves are divided into multiple groups, each group consisting of two symmetrically arranged small sliding grooves. A sliding rod 47 is provided inside the sliding groove 46. The sliding rod 47 is a columnar metal rod with bent ends. A locking slot 48 is fixedly installed on the small sliding groove inside the sliding groove 46. The number of locking slots 48 is several. The 48 slots are evenly spaced and interconnected with the sliding groove 46. The slot 48 can limit and engage the bent portions at both ends of the sliding rod 47. The sliding rod 47 can be engaged in the slot 48. The sliding main frame 1 is movably engaged in the two ends of the sliding rod 47. The sliding main frame 1 is provided with a reset slide groove 74, and the sliding rod 47 is provided with a curved slide groove 67. When the curved slide groove 67 rotates 180 degrees, it can push the sliding main frame 1 closer to the position of the steel rail to be ground. A spherical slider 68 is slidably connected inside the curved slide groove 67. The spherical slider 68 is a structure composed of a combination of block and spherical metal. The block metal part is slidably connected inside the reset slide groove 74, and the spherical metal is slidably connected inside the curved slide groove 67. A reset push plate 69 is fixedly installed on the top of the spherical slider 68. A push spring 72 is fixedly installed on one side of the reset push plate 69. A reset push frame 73 is fixedly installed on one end of the push spring 72. A secondary sliding frame 11 is slidably connected to the sliding main frame 1 on one side of the reset push frame 73. A connecting frame 13 is rotatably connected to the inner side of the secondary sliding frame 11. The connecting frame 13 is a hollow metal shell. An engine frame 8 is fixedly installed on the connecting frame 13. A drive engine 7 is fixedly installed on the top of the engine frame 8. A support wheel 12 is rotatably connected to the secondary sliding frame 11. The support wheel 12 rests on the surface of the sliding main frame 1. A reset limit sleeve 71 is fixedly installed in the middle of the reset push plate 69. A reset push rod 70 is slidably connected through the reset limit sleeve 71 and fixedly installed on one side of the reset push frame 73. A spherical slider 68, a reset push plate 69, a reset push rod 70, a reset push frame 73, and two push springs 72 form a group, and there are four groups in total. Each group of this structure is symmetrically installed around the secondary sliding frame 11. The push springs 72 can limit the elastic force of the reset push frame 73. A mounting frame 63 is fixedly installed below the main support frame 25. A sliding sleeve 39 is slidably connected to the mounting frame 63. A limit frame 40 is fixedly installed on the top of the sliding sleeve 39. A push frame 41 is fixedly installed on one side of the limit frame 40. The push frame 41 is composed of a metal cylinder and two circular metal flat plates. A multi-stage telescopic frame 27 is fixedly installed at the bottom of the sliding main frame 1, which overlaps the limit frame 40. An adjusting arm 42 is rotatably connected to the inner side of the mounting frame 63.There are two adjusting arms 42, each with a meshing wheel 44 fixedly mounted on its surface. A torsion spring is fixedly mounted between the mounting frame 63 and the shaft rotatably connected to the adjusting arm 42. A fastening wheel 45 is rotatably connected to the inner bottom of each adjusting arm 42, and the surface of the fastening wheel 45 has anti-slip grooves. An extension block is fixedly mounted on one side of one of the adjusting arms 42, and a through hole 43 is formed inside the extension block. A push frame 41 is slidably connected inside the through hole 43. The two circular metal flat plates of the push frame 41 push the extension block, thereby causing one of the adjusting arms 42 to rotate. A fixing rod 37 is fixedly mounted inside the mounting frame 63, and a sliding sleeve 39 is slidably connected to the surface of the fixing rod 37. A return spring 38, sleeved on the surface of the fixing rod 37, is fixedly mounted between the mounting frame 63 and the sliding sleeve 39. A handrail 6 is fixedly mounted on the sliding main frame 1.

[0042] In this embodiment, when the rail needs to be replaced for grinding, the sliding rod 47 is first rotated 90 degrees inside the sliding groove 46, causing the sliding rod 47 to disengage from the slot 48 inside the sliding groove 46. Simultaneously, the curved groove 67 inside the sliding rod 47 pushes the spherical slider 68 to move in the track of the reset groove 74. At this time, each set of spherical sliders 68 drives the reset push plate 69 and the reset push frame 73 to move in one direction. The reset push frame 73 can push the secondary sliding frame 11 towards the grinding position. After the sliding rod 47 disengages, pushing the sliding rod 47 drives the sliding main frame 1 and the secondary sliding frame 11 to continue moving in the grinding direction. After adjusting the position of the sliding main frame 1, the sliding rod 47 is rotated 90 degrees in the same direction, causing the sliding rod 47 to rotate into the slot 48. The curved groove 67 inside the sliding rod 47 continues to push... The spherical slider 68 moves in the track of the reset slide groove 74. Each set of spherical sliders 68 drives the reset push plate 69 and the reset push frame 73 to continue pushing the secondary sliding frame 11 in the grinding direction. At the same time, the sliding rod 47 is locked into the slot 48 to fix the sliding main frame 1. The multi-stage telescopic frame 27 in the reverse position is moved and passively pushed out by the fixed limit frame 40. When the multi-stage telescopic frame 27 is fully unfolded, the sliding main frame 1 continues to drive the multi-stage telescopic frame 27 to move. At this time, the multi-stage telescopic frame 27 drives the limit frame 40 to move. The limit frame 40 drives the push frame 41 to push one of the adjusting arms 42 to rotate. With the help of two meshing wheels 44, the two adjusting arms 42 and the fastening wheel 45 are driven to rotate inward to clamp and fix the middle position of the rail. Finally, the staff stands on the other side and holds the handrail 6 to push the structure to assist in the grinding work.

[0043] As an example, a mounting block 50 is fixedly installed at the bottom of the sliding main frame 1. A second threaded rod 51 is rotatably connected to the inner side of the mounting block 50. The second threaded rod 51 is a metal column with a smooth end and a threaded groove machined on the rest. An adjusting wheel 49 for driving is fixedly installed at one end of the second threaded rod 51. A secondary sliding frame 11 is threadedly connected to the surface of the second threaded rod 51. The secondary sliding frame 11 is a structure composed of parallel metal blocks on both sides and a bent metal block in the middle. A second connecting rod 52 is fixedly installed inside the mounting block 50. The secondary sliding frame 11 is slidably connected to the surface of the second connecting rod 52.

[0044] In this embodiment, when a fine adjustment of the grinding position is required, the adjusting wheel 49 can be rotated to drive the second threaded screw 51 to rotate, which in turn drives the secondary sliding frame 11 to move, thereby making a fine adjustment and control of the grinding position.

[0045] As one embodiment, a first push block 53 is fixedly installed on both sides of the secondary sliding frame 11. The first push block 53 is a cuboid metal with an inclined end. A first welding block 54 is fixedly installed on both sides of the main support frame 25. A first sliding plate 57 is slidably connected to the middle position of the first welding block 54. The first sliding plate 57 is a cuboid metal block. A first fixing block 55 is fixedly installed on the top of the first sliding plate 57. The cross-sectional area of ​​the first fixing block 55 is larger than the cross-sectional area of ​​the first sliding plate 57. A first spring 56 is fixedly installed between the first fixing block 55 and the first welding block 54. The first spring 56 has a number of... There are two springs 56, which are symmetrically arranged between each other. A second push block 58 is fixedly installed at the bottom of the first sliding plate 57. The second push block 58 is a right trapezoidal shape with one side inclined. A second welding block 60 is fixedly connected to the bottom of the first welding block 54. A second sliding plate 59 is slidably connected to the middle position of the second welding block 60. The second sliding plate 59 is U-shaped metal. A second fixing block 61 is fixedly connected to the top of the second sliding plate 59. A second spring 62 is fixedly installed between the second fixing block 61 and the second welding block 60. There are two second springs 62, which are symmetrically arranged between each other.

[0046] In this embodiment, when the first push block 53 moves, the inclined surface of the first push block 53 gradually contacts and presses down on the first fixed block 55, causing the first sliding plate 57 and the second push block 58 to follow and descend. The inclined surface of the second push block 58 squeezes and pushes the second sliding plate 59 to move inward, pushing the second sliding plate 59 out to the limit. The pushed-out second sliding plate 59 can block and collect the sparks and debris generated during the grinding of the rail.

[0047] As one embodiment, a mounting plate 35 is fixedly installed on one side of the connecting frame 13. A first connecting rod 36 is hinged to the mounting plate 35. A support plate 30 is fixedly installed at one end of the first connecting rod 36. A tension rod 64 is slidably connected to the support plate 30. A chain 29 is hinged between the tension rod 64 and the mounting plate 35. A circular plate 66 is fixedly installed at one end of the tension rod 64. A tension spring 65 is fixedly installed between the circular plate 66 and the support plate 30. A fixing frame 26 is fixedly installed at the top of the secondary sliding frame 11. A first connecting sleeve 34 is fixedly installed at the bottom of the fixing frame 26. The first connecting rod 36 is slidably connected inside the first connecting sleeve 34. The fixing frame 26 is curved. The metal frame has a connecting shaft 33 rotatably connected inside the fixed frame 26. A drive sprocket 31 that meshes with the chain 29 is fixedly mounted on the surface of the connecting shaft 33. The teeth on the surface of the drive sprocket 31 are triangular. An angle drive wheel 9 is fixedly mounted on one end of the connecting shaft 33. The angle drive wheel 9 can drive and adjust the connecting shaft 33. A fixed gear 32 is fixedly mounted on the surface of the connecting shaft 33. A limiting block 28 that matches the fixed gear 32 is rotatably connected to the fixed frame 26. The bottom of the limiting block 28 has teeth that match the groove teeth on the surface of the fixed gear 32. By setting the limiting block 28 and the fixed gear 32, the connecting shaft 33 can be locked and fixed.

[0048] In this embodiment, the limiting block 28 is first rotated to disengage from the fixed gear 32. Then, the angle drive wheel 9 is rotated to drive the connecting shaft 33 and the drive sprocket 31 to rotate. The drive sprocket 31 pushes the chain 29 to move. With the support between the first connecting rod 36 and the first connecting sleeve 34, the mounting plate 35 and the connecting frame 13 are driven to rotate. The angle of the connecting frame 13 is adjusted and controlled according to the grinding requirements. After the angle is adjusted, the limiting block 28 is rotated to engage with the fixed gear 32, thereby locking and fixing the fixed gear 32 and the connecting shaft 33.

[0049] As an example, a drive shaft 22 is fixedly mounted at the bottom of the drive engine 7. Multiple evenly distributed grooves are machined on the surface of the drive shaft 22. The engine frame 8 provides installation space for the drive engine 7, and the drive engine 7 provides driving power to the drive shaft 22. A first threaded screw 17 is rotatably connected inside the connecting frame 13. The first threaded screw 17 is a metal rod with a partially smooth portion machined into threads. A height drive wheel 10 is fixedly mounted at the top of the first threaded screw 17, providing driving force to the first threaded screw 17. A first threaded sleeve 16 is threadedly connected to the surface of the first threaded screw 17. A lifting plate 18 is fixedly mounted on one side of the first threaded sleeve 16. The lifting plate 18 is a rectangular metal plate. A limiting sleeve 21 is fixedly mounted on one side of the lifting plate 18. The limiting sleeve 21 is composed of two metal sleeves. A support slider 20 is rotatably connected to the inner side of the limiting sleeve 21. The cylinder 21 is raised and lowered, which can drive the support slider 20 to rise and fall. The support slider 20 and the limiting sleeve 21 are adapted to each other. The support slider 20 is a circular metal block. The limiting sleeve 21 consists of two circular metal blocks that are distributed vertically and spaced apart. The circular metal block of the support slider 20 is located inside the space between the two circular metal blocks of the limiting sleeve 21. The support sleeve 19 is fixedly installed on the inner side of the support slider 20 and slidably connected to the surface of the drive shaft 22. The drive shaft 22 can drive the support sleeve 19 to rotate. The inner side of the support sleeve 19 is machined with multiple protrusions that are adapted to multiple grooves on the surface of the drive shaft 22. The bottom of the support sleeve 19 is fixedly installed with a grinding block mounting port 23. The bottom of the grinding block mounting port 23 is fixedly installed with a grinding block 24. The connecting frame 13 has a limiting groove 14 inside. The limiting groove 14 is slidably connected to a limiting slider 15. The limiting slider 15 is fixedly installed on one side of the first threaded sleeve 16.

[0050] In this embodiment, when the grinding height needs to be adjusted, the height drive wheel 10 can be rotated to drive the first threaded screw 17 to rotate, thereby driving the first threaded sleeve 16 and the lifting plate 18, which are threadedly connected to the surface of the first threaded screw 17, to rise and fall. The lifting plate 18 drives the limiting sleeve 21, the support slider 20, the support sleeve 19, the grinding block mounting port 23, and the grinding block 24 to rise and fall, thereby controlling the grinding block 24 to a suitable grinding height.

[0051] As an example, an extension frame 4 is fixedly installed on the top of the main support frame 25. There are four extension frames 4, which are located above the ports of the two horizontal metal rods of the main support frame 25. A handle 5 is hinged inside the extension frame 4. An overlapping frame 3 is fixedly installed on one side of the mounting frame 63. An overlapping shaft 2 is hinged to the inner bottom of the overlapping frame 3.

[0052] Working principle:

[0053] S1. When the rails need to be ground, the worker first lifts the structure by holding handle 5, and then uses the overlapping shaft 2 of the structure to overlap the entire structure on top of the two rails, and grinds one of the rails. When the rail to be ground needs to be replaced, the sliding rod 47 is rotated 90 degrees inside the sliding groove 46, so that the sliding rod 47 disengages from the slot 48 inside the sliding groove 46. As the sliding rod 47 rotates and disengages, the curved sliding groove 67 inside the sliding rod 47 pushes the spherical slider 68 to move in the track of the reset sliding groove 74. At this time, the spherical slider 68 inside each group drives the reset push plate 69 and the reset push frame 73 to move in one direction. The reset push frame 73 can move the secondary sliding frame 11 and the grinding wheel that is installed and cooperates with the drive engine 7. The structure is pushed towards the grinding position, and then the sliding rod 47 is directly pushed to drive the sliding main frame 1 to move accordingly. The sliding main frame 1 and the secondary sliding frame 11 continue to move closer to the grinding direction. After adjusting the position of the sliding main frame 1, the sliding rod 47 is rotated 90 degrees in the same direction. At this time, the curved groove 67 inside the sliding rod 47 will still push the spherical slider 68 to move in the track of the reset groove 74. The spherical slider 68 inside each group drives the reset push plate 69 and the reset push frame 73 to push the secondary sliding frame 11 and the grinding structure that is installed and cooperates with the drive engine 7 towards the grinding direction for the third time. The position of the grinding structure is adjusted until the sliding rod 47 rotates into the slot 48, and the sliding main frame 1 is limited and fixed at the same time.

[0054] S2. While adjusting the position of the sliding main frame 1, the multi-stage telescopic frame 27 near the non-grinding track will be pulled and extended. When the multi-stage telescopic frame 27 is fully extended, the moving sliding main frame 1 continues to drive the multi-stage telescopic frame 27 to move. The multi-stage telescopic frame 27 drives the limit frame 40 to move. The limit frame 40 drives the push frame 41 to push one of the adjusting arms 42 to rotate. With the meshing wheel 44, the two adjusting arms 42 and the fastening wheel 45 rotate inward at the same time to clamp and fix the middle position of the rail. Finally, the staff stands on the other side and holds the handrail 6 to push and control the structure.

[0055] S3. Before grinding the rail, according to the grinding requirements, the height drive wheel 10 is rotated to drive the first threaded screw 17 to rotate, thereby driving the first threaded sleeve 16 and the lifting plate 18 to rise and fall. The lifting plate 18 drives the limit sleeve 21, the support slider 20, the support sleeve 19, the grinding block mounting port 23, and the grinding block 24 to rise and fall, thereby adjusting and controlling the grinding height. At the same time, the limit block 28 is rotated to disengage the limit block 28 from the fixed gear 32. Then, the angle drive wheel 9 is rotated to drive the connecting shaft 33 and the drive sprocket 31 to rotate. The drive sprocket 31 drives the chain 29 to move by rotating. With the limit between the first connecting rod 36 and the first connecting sleeve 34, the mounting plate 35 and the connecting frame 13 are driven to rotate, thereby adjusting and controlling the angle of the connecting frame 13, and thus adjusting and controlling the grinding angle.

[0056] S4. Finally, during the moving process, the drive engine 7 can be controlled to work, driving the drive shaft 22, support sleeve 19, grinding block mounting port 23 and grinding block 24 to rotate, and the surface of the rail can be ground by means of the grinding block 24.

[0057] The present invention has the following technical advantages.

[0058] 1. This invention rotates the sliding rod inside the sliding groove, causing it to disengage from the groove. The curved groove inside the rotating sliding rod also pushes the spherical slider to move in the track of the reset groove. This causes the spherical slider in each group to move the reset push plate and reset push frame in one direction. The reset push frame can push the secondary sliding frame towards the grinding position. This auxiliary pushing process can shorten the subsequent adjustment range and improve the adjustment efficiency when changing tracks. After the sliding rod is disengaged, the sliding rod pushes the sliding main frame to move accordingly. By adjusting and controlling the position of the sliding main frame, different rails can be adjusted and ground without removing the structure, reducing the need for large-scale structural adjustments. At the same time, the movement of the sliding main frame can push the multi-stage telescopic frame close to the ungrinded rail to telescopically move after contacting the limit frame. Finally, the multi-stage telescopic frame pulls the limit frame and push frame to move. The push frame pushes the adjusting arm to rotate, thereby driving the two fastening wheels to move inward. The fastening wheels limit and fasten the ungrinded rail. When the worker pushes from one side, the stability of the structure movement can be improved.

[0059] 2. This invention rotates the adjusting wheel, causing the second threaded screw to rotate as well. This causes the secondary sliding frame to move, and simultaneously causes the first push block to move as well. The position of the secondary sliding frame is adjusted and controlled according to the actual grinding requirements. When the secondary sliding frame is moved to the appropriate position, the inclined surface of the first push block gradually contacts and presses down on the first fixed block, causing the first sliding plate and the second push block to descend. The inclined surface of the second push block presses and pushes the second sliding plate inward, controlling the extension of the second sliding plate. At this time, the debris generated during the grinding work can be shielded and collected by the extended second sliding plate.

[0060] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A double-rail supported rail grinding machine, comprising a main support frame (25), characterized in that, The main support frame (25) is slidably connected to a sliding main frame (1). The main support frame (25) is provided with a sliding groove (46). A sliding rod (47) is provided inside the sliding groove (46). A slot (48) is fixedly installed on the sliding groove (46). There are several slots (48), which are evenly spaced and communicate with each other with the sliding groove (46). The sliding rod (47) can be engaged in the slot (48). The sliding main frame (1) is movably engaged in the two ends of the sliding rod (47). The sliding main frame (1) is provided with a reset sliding groove (74). The sliding rod (47) is provided with a curved sliding groove (67). A spherical slider (68) is slidably connected inside the curved sliding groove (67). A reset push plate (69) is fixedly installed on the top of the spherical slider (68). The reset push plate (69) is... A push spring (72) is fixedly installed on one side of the push spring (72), and a reset push frame (73) is fixedly installed on one end of the push spring (72). A secondary sliding frame (11) is slidably connected to the sliding main frame (1) on one side of the reset push frame (73). A connecting frame (13) is rotatably connected to the inner side of the secondary sliding frame (11). An engine frame (8) is fixedly installed on the connecting frame (13). A drive engine (7) is fixedly installed on the top of the engine frame (8). A support wheel (12) is rotatably connected to the secondary sliding frame (11). The support wheel (12) overlaps the surface of the sliding main frame (1). A reset limit sleeve (71) is fixedly installed in the middle position of the reset push plate (69). A reset push rod (70) is slidably connected through the reset limit sleeve (71) and fixedly installed on one side of the reset push frame (73). A mounting frame (63) is fixedly installed below the main support frame (25). A sliding sleeve (39) is slidably connected to the mounting frame (63). A limiting frame (40) is fixedly installed on the top of the sliding sleeve (39). A pushing frame (41) is fixedly installed on one side of the limiting frame (40). A multi-stage telescopic frame (27) is fixedly installed at the bottom of the sliding main frame (1) and overlaps the limiting frame (40). An adjusting arm (42) is rotatably connected to the inner side of the mounting frame (63). There are two of them. The surfaces of the two adjustment arms (42) are fixedly equipped with meshing wheels (44) that mesh with each other. The bottom inner sides of the two adjustment arms (42) are rotatably connected with fastening wheels (45). An extension block is fixedly installed on one side of one of the adjustment arms (42). A through hole (43) is opened on the inner side of the extension block. The push frame (41) is slidably connected to the inner side of the through hole (43). The push frame (41) can drive one of the adjustment arms (42) to rotate through the extension block and the through hole (43). A return spring (38) sleeved on the surface of the fixed rod (37) is fixedly installed between the mounting bracket (63) and the sliding sleeve (39), and a handrail (6) is fixedly installed on the sliding main frame (1).

2. The double-track supported rail grinding machine according to claim 1, characterized in that, A fixing rod (37) is fixedly installed on the inner side of the mounting bracket (63), and the sliding sleeve (39) is slidably connected to the surface of the fixing rod (37).

3. The double-track supported rail grinding machine according to claim 1, characterized in that, The sliding main frame (1) is fixedly installed with an installation block (50) at the bottom. The inner side of the installation block (50) is rotatably connected with a second threaded screw (51). The surface of the second threaded screw (51) is threadedly connected with a secondary sliding frame (11).

4. A cross-dual-rail support rail grinding machine according to claim 3, characterized in that, The secondary sliding frame (11) is fixedly installed with a first push block (53) on both sides. The main support frame (25) is fixedly installed with a first welding block (54) on both sides. The first welding block (54) is slidably connected to the middle position of the first sliding plate (57) and a first fixing block (55) is fixedly installed on the top of the first sliding plate (57). A first spring (56) is fixedly installed between the first fixing block (55) and the first welding block (54). A second push block (58) is fixedly installed at the bottom of the first sliding plate (57). A second welding block (60) is fixedly connected to the bottom of the first welding block (54). A second sliding plate (59) is slidably connected to the middle position of the second welding block (60) and a second fixing block (61) is fixedly connected to the top of the second sliding plate (59). A second spring (62) is fixedly installed between the second fixing block (61) and the second welding block (60).

5. A cross-dual-rail support rail grinding machine according to claim 3, characterized in that, A mounting plate (35) is fixedly installed on one side of the connecting frame (13). A first connecting rod (36) is hinged to the mounting plate (35). A support plate (30) is fixedly installed at one end of the first connecting rod (36). A tension rod (64) is slidably connected to the support plate (30). A chain (29) is hinged between the tension rod (64) and the mounting plate (35). A circular plate (66) is fixedly installed at one end of the tension rod (64). A chain (29) is fixedly installed between the circular plate (66) and the support plate (30). There is a tension spring (65), a fixed frame (26) is fixedly installed on the top of the secondary sliding frame (11), a first connecting sleeve (34) is fixedly installed on the bottom of the fixed frame (26), the first connecting rod (36) is slidably connected inside the first connecting sleeve (34), a connecting shaft (33) is rotatably connected inside the fixed frame (26), a drive sprocket (31) that meshes with the chain (29) is fixedly installed on the surface of the connecting shaft (33), and an angle drive wheel (9) is fixedly installed at one end of the connecting shaft (33).

6. A cross-dual-rail support rail grinding machine according to claim 5, characterized in that, A fixed gear (32) is fixedly installed on the surface of the connecting shaft (33), and a limiting block (28) adapted to the fixed gear (32) is rotatably connected on the fixing frame (26).

7. A cross-dual-rail support rail grinding machine according to claim 5, characterized in that, The drive engine (7) is fixedly mounted with a drive shaft (22) at the bottom. A first threaded screw (17) is rotatably connected inside the connecting frame (13). A height drive wheel (10) is fixedly mounted at the top of the first threaded screw (17). A first threaded sleeve (16) is threadedly connected to the surface of the first threaded screw (17). A lifting plate (18) is fixedly mounted on one side of the first threaded sleeve (16). A limit sleeve (21) is fixedly mounted on one side of the lifting plate (18). A support slider (20) is rotatably connected inside the limit sleeve (21). The limit sleeve (21) can be adjusted to lift and lower the support slider (20). A support sleeve (19) is fixedly mounted inside the support slider (20) and slidably connected to the surface of the drive shaft (22). The drive shaft (22) can drive the support sleeve (19) to rotate. A grinding block mounting port (23) is fixedly mounted at the bottom of the support sleeve (19). A grinding block (24) is fixedly mounted at the bottom of the grinding block mounting port (23).

8. A cross-dual-rail support rail grinding machine according to claim 7, characterized in that, The connecting frame (13) has a limiting groove (14) inside, and a limiting slider (15) is slidably connected inside the limiting groove (14). The limiting slider (15) is fixedly installed on one side of the first threaded sleeve (16).

9. A cross-dual-rail support rail grinding machine according to claim 1, characterized in that, An extension frame (4) is fixedly installed on the top of the main support frame (25). A handle (5) is hinged inside the extension frame (4). An overlapping frame (3) is fixedly installed on one side of the mounting frame (63). An overlapping shaft (2) is hinged to the inner bottom of the overlapping frame (3).

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