Track maintenance equipment for track construction

Abstract

The invention relates to the technical field of railway maintenance, in particular to track maintenance equipment for track construction, which comprises a walking structure comprising a servo motor fixedly arranged on one side of a frame plate. The servo motor is started to drive the bidirectional screw rod connected with the output shaft of the servo motor to rotate, and the two sliding seats on the outer side are controlled to drive the walking wheels connected through the vertical plates to move in the opposite or opposite directions, so that the distance between the walking wheels adapts to tracks with different track gauges; the sliding seat and the frame plate are in rolling connection through the balls and the rolling grooves, friction can be avoided, the adjusting smoothness is improved, the movable plate provided with the dripping pipe is rotationally connected with the vertical plate through the rotating shaft, the limiting gear is installed on the outer side of the rotating shaft, and meanwhile the elastic force of the reset spring is utilized to achieve clamping of the clamping block connected with the reset spring and the limiting gear. Therefore, the dripping pipes can be conveniently rotated by a certain angle and fixed, and the distance between the two dripping pipes is matched with tracks with different track gauges.

Description

Technical Field

[0001] The invention relates to the technical field of railway maintenance, and in particular to track maintenance equipment for track construction. Background Art

[0002] Rail transit is widely accepted and used by people for its large carrying capacity, safety and convenience. Railway tracks are an important part of railway transportation, which are mainly composed of rails, sleepers, fixtures and foundation stones. With the intensification of global climate change, extreme weather events such as typhoons, heavy rains and snowy weather are frequent. These extreme weather events may cause long-term damage to track facilities. For example, heavy rains will cause a lot of water to accumulate and flood the tracks, soaking the rails in water, causing the rails to rust and corrode, reducing the strength and service life of the rails. For example, in a high temperature environment, the rails will stretch due to thermal expansion. If there is not enough space for expansion and contraction, huge stress will be generated inside the rails, which may cause the rails to deform, bend or even break. On the contrary, in a low temperature environment, the rails will shrink, which may also cause embrittlement and fracture of the rails. In addition, long-term temperature differences will also cause fatigue damage to the track material, reducing its strength and performance, which also makes the track maintenance cycle more frequent. Now when the rails are replaced, the bolts on the rails are easily stuck in the threaded holes, and it is not easy to turn the bolts, resulting in the bolts being unable to be removed from the threaded holes.

[0003] At present, in the existing technology, the maintenance vehicle for track disassembly has the function of bolt lubrication in actual use, but the roller spacing of the vehicle body itself is fixed, and the structure of bolt lubrication is inconvenient to adjust according to needs, which makes it difficult to adapt to tracks of different track gauges, resulting in poor adaptability and reduced practicality. Therefore, it is necessary to provide a track maintenance device for track construction to solve the above technical problems. Summary of the invention

[0004] In view of the above problems, the technical problem to be solved by the present invention is that in the maintenance vehicle for track disassembly in the prior art, although it has the function of bolt lubrication during actual use, the roller spacing of the vehicle body itself is certain, and the structure of bolt lubrication is inconvenient to adjust according to demand, which makes it difficult to adapt to tracks of different gauges, resulting in poor adaptability and reduced practicality. In view of the above defects of the prior art, a track maintenance equipment for track construction is provided, including: a walking structure, including a servo motor installed and fixed on one side of the frame plate. The present invention starts a servo motor to drive the bidirectional screw connected to its output shaft to rotate, thereby controlling the two outer slides to drive the walking wheels connected through the vertical plate to move in relative or opposite directions, so that the spacing of the walking wheels can adapt to tracks of different track gauges. The slide and the frame plate are connected by a rolling connection of balls and rolling grooves, which can avoid friction and improve the smoothness of adjustment. The movable plate on which the drip tube is installed is rotatably connected to the vertical plate by a rotating shaft, and a limiting gear is installed on the outer side of the rotating shaft. At the same time, the elastic force of the return spring is used to realize the engagement of the clamping block connected to the drip tube with the limiting gear, so that the drip tube can be rotated to a certain angle and fixed, so that the spacing of the two drip tubes can adapt to tracks of different track gauges.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a track maintenance equipment for track construction, comprising: a frame plate, a total of two frame plates are provided, each of the frame plates is a box-shaped structure with an open bottom; a walking structure, comprising a servo motor fixedly arranged on one side of the frame plate, the output shaft of the servo motor passes through the frame plate and is fixedly provided with a bidirectional screw, the outer side of the bidirectional screw is symmetrically screwed with a sliding seat, a vertical plate is fixedly arranged at the bottom of each sliding seat, the opposite back surfaces of the two vertical plates are rotatably connected with walking wheels, the front and rear surfaces of the inner cavity of the frame plate are provided with rolling grooves, and the front and rear surfaces of the sliding seat are provided with balls rollingly connected to the rolling grooves; a lubrication structure, comprising a storage box installed and fixed to the upper surface of the frame plate, the front surface of the storage box is fixedly provided with a T-shaped pipe fitting, the T Both ends of the pipe fitting are fixed with connecting hoses, the lower end of the connecting hose is fixed with a drip tube, the outer side of the drip tube is fixed with a movable plate rotatably connected to the vertical plate, the front surfaces of the two vertical plates located in the front are provided with mounting grooves, the inner side of the mounting grooves is provided with slide grooves, and the bottom of the inner cavity of the mounting grooves is rotatably connected with a rotating shaft fixed to the movable plate, the outer side of the rotating shaft is sleeved with a limiting gear, a return spring is fixed on the upper surface of the inner cavity of the mounting groove, the lower end of the return spring is fixed with a block engaged with the limiting gear, and the rear surface of the block is fixed with a slider slidably connected to the slide groove; the frame structure is arranged on the walking structure to adapt to the use of curves and straight roads; the pulling structure is arranged on the front surface of the frame structure to pull the track maintenance equipment to move.

[0006] It is further provided that the slider is in a cross-shaped structure, and the slider and the clamping block are an integrally formed structure, and the tooth gap of the limiting gear is 0.15 mm.

[0007] It is further configured that a controller is fixedly provided on the front surface of the frame plate located in the front, and a battery is fixedly provided on the upper surface of the frame plate located in the rear, the battery and the controller are electrically connected, and the controller and the servo motor are electrically connected.

[0008] It is further provided that the lubrication structure also includes a control valve arranged on the T-shaped pipe, and an injection port is arranged on the top of the storage box.

[0009] It is further provided that the frame structure includes a second connecting plate fixedly mounted on the rear surface of the frame plate, the upper surface of the second connecting plate is rotatably connected with a connecting shaft, and the outer side of the connecting shaft is sleeved with a first connecting plate connected to the frame plate.

[0010] It is further configured that the frame structure also includes a protrusion installed and fixed on the upper end of the connecting shaft, a fixing seat is fixed on the upper surface of the first connecting plate, a hand-adjusting bolt is threaded inside the fixing seat, and one end of the hand-adjusting bolt is rotatably connected to a limit block engaged with the protrusion.

[0011] It is further provided that the protrusion and the connecting shaft are an integrally formed structure, the limiting block is a U-shaped structure, and the bottom of the limiting block is in contact with the first connecting plate.

[0012] It is further provided that the pulling structure includes a pull rod fixedly mounted on the front surface of the second connecting plate, a mounting through hole is provided inside the pull rod, and an operating handle is slidably connected inside the mounting through hole.

[0013] It is further configured that the pulling structure also includes a lead screw threadedly connected to the operating handle, the lead screw and the pull rod are rotationally connected, and a hand wheel is fixedly provided at the lower end of the lead screw.

[0014] It is further configured that the pulling structure also includes two guide grooves opened on the inner side of the installation through hole, and the outer side of the operating handle is symmetrically fixed with guide blocks slidably connected to the guide grooves. The operating handle is a T-shaped structure, and the outer side of the operating handle is sleeved with an anti-slip rubber sleeve.

[0015] Compared with the related art, the track maintenance equipment for track construction provided by the present invention has the following beneficial effects:

[0016] The invention provides a track maintenance device for track construction. By starting a servo motor, a bidirectional screw connected to an output shaft thereof is driven to rotate, so that two sliding seats on the outer sides are controlled to drive traveling wheels connected through a vertical plate to move in opposite directions, so that the spacing of the traveling wheels is adapted to tracks of different track gauges. A ball and a rolling groove are adopted between the sliding seat and the frame plate to avoid friction and improve the smoothness of adjustment. A rotating shaft is adopted to rotate the movable plate for installing a drip tube and the vertical plate. A limiting gear is installed on the outer side of the rotating shaft. At the same time, the elastic force of a reset spring is utilized to realize the engagement of a clamping block connected thereto with the limiting gear, so that the drip tube is conveniently rotated to a certain angle and fixed, so that the spacing of the two drip tubes is adapted to tracks of different track gauges. The invention solves the problem that, in the prior art, a maintenance vehicle for track disassembly has the function of bolt lubrication during actual use, but the roller spacing of the vehicle body itself is fixed, and the structure of the bolt lubrication is inconvenient to be adjusted according to demand, which makes it difficult to adapt to tracks of different track gauges, resulting in poor adaptability and reduced practicality.

[0017] The present invention provides a track maintenance device for track construction, wherein two frame plates are rotatably connected by a first connecting plate, a second connecting plate and a connecting shaft, and when the maintenance device moves on the track, the middle part of the frame structure can be freely twisted to adapt to walking on curves and straight roads, and a protrusion is arranged on the upper end of the connecting shaft, and by rotating a hand-adjusting bolt, a limit block rotatably connected to the frame structure is controlled to be clamped on the outer side of the protrusion, thereby fixing the frame structure adjusted to a straight state, and ensuring that the track maintenance device can move in a straight line on land. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of a track maintenance device for track construction provided by the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the drip pipe and the vertical plate connected to each other in the present invention;

[0020] Figure 3 It is a partial enlarged view of part A of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping block and the limiting gear of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the first connecting plate and the second connecting plate of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the limit block and the connecting shaft of the present invention;

[0024] Figure 7It is a schematic diagram of the front view structure of the connection between the vertical plate and the frame plate of the present invention;

[0025] Figure 8 It is a left-side structural schematic diagram of the connection between the operating handle and the pull rod of the present invention.

[0026] Reference numerals:

[0027] 1. Travel wheel; 2. Servo motor; 3. Frame plate; 4. Battery; 5. Fixed seat; 6. First connecting plate; 7. Injection port; 8. Control valve; 9. T-type pipe fitting; 10. Storage box; 11. Operating handle; 12. Pull rod; 13. Hand wheel; 14. Connecting hose; 15. Controller; 16. Drip tube; 17. Movable plate; 18. Vertical plate; 19. Second connecting plate; 20. Mounting groove; 21. Reset spring; 22. Slide groove; 23. Sliding block; 24. Block; 25. Limiting gear; 26. Manual adjustment bolt; 27. Limiting block; 28. Bump; 29. ​​Connecting shaft; 30. Ball; 31. Bidirectional screw; 32. Rolling groove; 33. Sliding seat; 34. Mounting through hole; 35. Lead screw; 36. Rotating shaft; 37. Guide groove; 38. Guide block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] like Figure 1-8As shown, a track maintenance device for track construction of the present invention comprises: a frame plate 3, of which there are two, each frame plate 3 is a box-shaped structure with an open bottom; a walking structure, comprising a servo motor 2 installed and fixed on one side of the frame plate 3, the output shaft of the servo motor 2 passes through the frame plate 3 and is fixedly connected with a bidirectional screw 31, the outer side of the bidirectional screw 31 is symmetrically screwed with a slide seat 33, the bottom of each slide seat 33 is fixedly installed with a vertical plate 18, the opposite back surfaces of the two vertical plates 18 are rotatably connected with a walking wheel 1, the front and rear surfaces of the inner cavity of the frame plate 3 are provided with rolling grooves 32, the front and rear surfaces of the slide seat 33 are provided with balls 30 rollingly connected with the rolling grooves 32; a lubrication structure, comprising a storage box 10 installed and fixed on the upper surface of the frame plate 3, the front surface of the storage box 10 is fixedly connected with a T-shaped pipe fitting 9, and both ends of the T-shaped pipe fitting 9 are fixedly connected with connecting wheels 1. A connecting hose 14 is provided, and a drip tube 16 is fixedly connected to the lower end of the connecting hose 14. A movable plate 17 rotatably connected to the vertical plate 18 is fixedly installed on the outer side of the drip tube 16. A mounting groove 20 is provided on the front surface of the two vertical plates 18 in front, and a slide groove 22 is provided on the inner side of the mounting groove 20. A rotating shaft 36 fixedly connected to the movable plate 17 is rotatably connected to the bottom of the inner cavity of the mounting groove 20. A limiting gear 25 is sleeved on the outer side of the rotating shaft 36. A return spring 21 is fixedly installed on the upper surface of the inner cavity of the mounting groove 20. A block 24 engaged with the limiting gear 25 is fixedly connected to the lower end of the return spring 21, and a slider 23 slidably connected to the slide groove 22 is fixedly installed on the rear surface of the block 24; a frame structure is arranged on the walking structure to adapt to the use of curves and straight roads; a pulling structure is arranged on the front surface of the frame structure to pull the track maintenance equipment to move.

[0031] In practice, by starting the servo motor 2, the bidirectional screw 31 connected to its output shaft is driven to rotate, so that the two outer slides 33 are controlled to drive the walking wheels 1 connected through the vertical plate 18 to move in opposite or opposite directions, so that the spacing of the walking wheels 1 can adapt to tracks of different track gauges. The sliding seat 33 and the frame plate 3 are connected by rolling balls 30 and rolling grooves 32, which can avoid friction and improve the smoothness of adjustment. In addition, the movable plate 17 for installing the drip tube 16 and the vertical plate 18 are connected by a rotating shaft 36 for rotation, and a limited position gear is installed on the outer side of the rotating shaft 36. Wheel 25, and at the same time, the elastic force of the return spring 21 is used to realize the engagement of the block 24 connected thereto and the limit gear 25, so that the drip tube 16 can be rotated to a certain angle and fixed, so that the spacing between the two drip tubes 16 can adapt to tracks of different gauges, which solves the problem that in the prior art, although the maintenance vehicle for track disassembly has the function of bolt lubrication during actual use, the roller spacing of the vehicle body itself is certain, and the structure of bolt lubrication is inconvenient to adjust according to demand, which makes it difficult to adapt to tracks of different gauges, resulting in poor adaptability and reduced practicality. Technical problems.

[0032] like Figure 4As shown, the slider 23 is a cross-shaped structure, and the slider 23 and the block 24 are an integrally formed structure, so that the slider 23 and the block 24 are firmly connected, and the tooth gap of the limiting gear 25 is 0.15mm, which improves the sensitivity of the engagement between the block 24 and the limiting gear 25.

[0033] like Figure 1 As shown, a controller 15 is fixedly installed on the front surface of the front frame plate 3, and a battery 4 is fixedly installed on the upper surface of the rear frame plate 3. The battery 4 and the controller 15 are electrically connected, and the controller 15 and the servo motor 2 are electrically connected. By operating the controller 15, the servo motor 2 is controlled to start.

[0034] like Figure 1 As shown, the lubrication structure further includes a control valve 8 arranged on the T-shaped pipe fitting 9, and an injection port 7 is arranged on the top of the storage box 10, through which the lubricant can be stored in the storage box 10.

[0035] like Figure 1 and Figure 8 As shown, the pulling structure includes a pull rod 12 installed and fixed on the front surface of the second connecting plate 19, a mounting through hole 34 is opened inside the pull rod 12, and an operating handle 11 is slidably connected inside the mounting through hole 34. The pulling structure also includes a lead screw 35 threadedly connected to the operating handle 11, the lead screw 35 is rotationally connected to the pull rod 12, and the lower end of the lead screw 35 is fixedly connected to the hand wheel 13, the pulling structure also includes two guide grooves 37 opened on the inner side of the mounting through hole 34, and a guide block 38 slidably connected to the guide groove 37 is symmetrically fixedly installed on the outer side of the operating handle 11. The operating handle 11 is a T-shaped structure, and the outer side of the operating handle 11 is sleeved with an anti-slip rubber sleeve.

[0036] During implementation, a pulling structure is used to pull the track maintenance equipment to move, wherein the operating handle 11 and the pull rod 12 are connected by a screw 35, a guide block 38 and a guide groove 37. By rotating the handwheel 13, the screw 35 connected thereto is driven to rotate, and at the same time, the guide block 38 and the guide groove 37 are used to control the lifting and lowering of the outer operating handle 11, thereby facilitating the use of users of different heights and improving practicality.

[0037] Embodiment 2:

[0038] like Figure 1-8As shown, on the basis of the first embodiment, the present invention provides a technical solution: the frame structure includes a second connecting plate 19 installed and fixed on the rear surface of the frame plate 3, the upper surface of the second connecting plate 19 is rotatably connected with a connecting shaft 29, the outer side of the connecting shaft 29 is sleeved with a first connecting plate 6 connected to the frame plate 3, the frame structure also includes a protrusion 28 installed and fixed on the upper end of the connecting shaft 29, a fixing seat 5 is fixedly installed on the upper surface of the first connecting plate 6, a manual adjustment bolt 26 is screwed inside the fixing seat 5, one end of the manual adjustment bolt 26 is rotatably connected with a limit block 27 engaged with the protrusion 28, the protrusion 28 and the connecting shaft 29 are an integrally formed structure, the limit block 27 is a U-shaped structure, and the bottom of the limit block 27 is in contact with the first connecting plate 6.

[0039] During implementation, the two frame plates 3 are rotatably connected by the first connecting plate 6, the second connecting plate 19 and the connecting shaft 29. When the maintenance equipment moves on the track, the middle part of the frame structure can be freely twisted to adapt to walking on curves and straight roads, and a protrusion 28 is provided at the upper end of the connecting shaft 29. By rotating the hand-adjustable bolt 26, the limit block 27 rotatably connected to it is controlled to be fixed on the outer side of the protrusion 28, so that the frame structure adjusted to a straight state can be fixed, ensuring that the track maintenance equipment can move in a straight line on land.

[0040] When the present technical solution is used, the annular grooves of the four running wheels 1 of the present device are first clamped on the rails, and then the hand-adjusting bolt 26 is rotated to drive the limit block 27 connected to it to be disengaged from the outside of the protrusion 28, so that the middle part of the frame structure can be freely twisted to adapt to the running of the curve and the straight road. Then, the operating handle 11 is held and the present device is pulled to move so that the lower end of the drip tube 16 is aligned with the bolt. Finally, the control valve 8 is opened so that the lubricating liquid inside the storage box 10 drips onto the bolt through the T-shaped pipe fitting 9, the connecting hose 14 and the drip tube 16 to lubricate the bolt and help the disassembly of the track. When the height of the operating handle 11 needs to be adjusted, the hand wheel 13 is rotated to drive the lead screw 35 connected to it to rotate, and at the same time, the guide block 38 and the guide groove 37 are used to make the operating handle 11 outside the lead screw 35 rise and fall. When the spacing between the two corresponding running wheels 1 on the left and right needs to be adjusted, the servo motor 2 is started to drive the bidirectional screw 31 connected to its output shaft to rotate, and drive the two slide seats 33 on the outside of the control to drive the running wheels 1 connected through the vertical plate 18 to move in opposite or opposite directions. When the slide 33 moves, the ball 30 rolls inside the rolling groove 32, which can avoid friction and improve the smoothness of adjustment. When the distance between the two drip tubes 16 needs to be adjusted, the block 24 is first pushed upward to make the slider 23 connected thereto slide inside the slide groove 22, and the block 24 is separated from the outer side of the limit gear 25, and then the movable plate 17 is rotated to adjust the distance between the two drip tubes 16, and finally the block 24 is released. At this time, under the elastic force of the reset spring 21, the block 24 connected thereto is again engaged with the limit gear 25, so that the drip tube 16 rotated at a certain angle is fixed.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A track maintenance device for track construction, characterized in that: include: There are two frame plates in total, each of which is a box-shaped structure with an open bottom; The walking structure includes a servo motor fixedly mounted on one side of the frame plate, the output shaft of the servo motor passes through the frame plate and is fixedly mounted with a bidirectional screw, the outer side of the bidirectional screw is symmetrically screwed with a slide seat, a vertical plate is fixedly mounted at the bottom of each slide seat, the opposite back surfaces of the two vertical plates are rotatably connected with walking wheels, the front and rear surfaces of the inner cavity of the frame plate are both provided with rolling grooves, and the front and rear surfaces of the slide seat are both provided with balls rollingly connected with the rolling grooves; The lubrication structure comprises a storage box installed and fixed on the upper surface of the frame plate, a T-shaped pipe fitting is fixedly provided on the front surface of the storage box, connecting hoses are fixedly provided on both ends of the T-shaped pipe fitting, a dripping pipe is fixedly provided on the lower end of the connecting hose, a movable plate rotatably connected to the vertical plate is fixedly provided on the outer side of the dripping pipe, a mounting groove is provided on the front surface of the two vertical plates located in the front, a sliding groove is provided on the inner side of the mounting groove, and a rotating shaft fixed to the movable plate is rotatably connected to the bottom of the inner cavity of the mounting groove, a limiting gear is sleeved on the outer side of the rotating shaft, a return spring is fixedly provided on the upper surface of the inner cavity of the mounting groove, a clamping block engaged with the limiting gear is fixedly provided on the lower end of the return spring, and a sliding block slidably connected to the sliding groove is fixedly provided on the rear surface of the clamping block; The frame structure is arranged on the walking structure and is used to adapt to the use on curves and straight roads; The pulling structure is arranged on the front surface of the frame structure and is used for pulling the track maintenance equipment to move.

2. A track maintenance device for track construction according to claim 1, characterized in that: The slider is a cross-shaped structure, and the slider and the clamping block are an integrally formed structure. The tooth gap of the limiting gear is 0.15 mm.

3. A track maintenance device for track construction according to claim 1, characterized in that: A controller is fixedly arranged on the front surface of the frame plate at the front, and a battery is fixedly arranged on the upper surface of the frame plate at the rear. The battery is electrically connected to the controller, and the controller is electrically connected to the servo motor.

4. A track maintenance device for track construction according to claim 1, characterized in that: The lubrication structure also includes a control valve arranged on the T-shaped pipe, and an injection port is arranged on the top of the storage box.

5. The track maintenance equipment for track construction according to claim 1, characterized in that: The frame structure comprises a second connecting plate fixedly mounted on the rear surface of the frame plate, the upper surface of the second connecting plate is rotatably connected with a connecting shaft, and the outer side of the connecting shaft is sleeved with a first connecting plate connected to the frame plate.

6. A track maintenance device for track construction according to claim 5, characterized in that: The frame structure also includes a protrusion installed and fixed on the upper end of the connecting shaft. A fixing seat is fixed on the upper surface of the first connecting plate. A hand-adjusting bolt is screwed inside the fixing seat. One end of the hand-adjusting bolt is rotatably connected to a limiting block engaged with the protrusion.

7. A track maintenance device for track construction according to claim 6, characterized in that: The protrusion and the connecting shaft are integrally formed, the limiting block is in a U-shaped structure, and the bottom of the limiting block is in contact with the first connecting plate.

8. The track maintenance equipment for track construction according to claim 5, characterized in that: The pulling structure comprises a pull rod fixedly mounted on the front surface of the second connecting plate, a mounting through hole is provided inside the pull rod, and an operating handle is slidably connected inside the mounting through hole.

9. A track maintenance device for track construction according to claim 8, characterized in that: The pulling structure also includes a lead screw threadedly connected to the operating handle, the lead screw is rotationally connected to the pull rod, and a hand wheel is fixedly arranged at the lower end of the lead screw.

10. The track maintenance equipment for track construction according to claim 8, characterized in that: The pulling structure also includes two guide grooves opened on the inner side of the installation through hole. The outer side of the operating handle is symmetrically fixed with guide blocks slidably connected to the guide grooves. The operating handle is a T-shaped structure, and the outer side of the operating handle is sleeved with an anti-slip rubber sleeve.

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