Auxiliary construction device for track laying of ballast line through'pushing method '

Abstract

The invention belongs to the technical field of track engineering construction, and particularly relates to a ballast line pushing method track laying auxiliary construction device. Comprising rotating wheels, wheel shafts and steel rail supporting seats. The two rotating wheels support the wheel shaft; two steel rail supporting seats are hung below the wheel shaft; supporting legs extending outwards are arranged on the rotating wheels; the steel rail supporting seat comprises a seat body and two steel rail clamping blocks, and the two steel rail clamping blocks are assembled on the seat body in a face-to-face and sliding mode. When the two steel rail clamping blocks are close to each other, a clamping jaw formed by the two steel rail clamping blocks clamps a rail head of a steel rail; when the two steel rail clamping blocks are far away from each other, the rail head of the steel rail is released; a supporting mechanism is connected between the steel rail clamping block and the steel rail supporting base and used for limiting sliding of the steel rail clamping block. Compared with a traditional pushing method, the current situation that a large number of operators need to pull and guide the steel rail through a crowbar at the rail head end is ended, the construction problem that a large number of under-rail rubber mats can be knocked off when the steel rail is pulled and guided forwards is solved, and the construction quality of the pushing method is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of track engineering construction, and in particular relates to a track laying auxiliary construction device using a "push method" for ballasted lines. Background Art

[0002] With the rapid development of high-speed railways in my country, most of the newly built lines are ballastless lines, and only the parts close to existing stations involve ballasted lines. Ballasted lines generally adopt the single-sleeper continuous laying method and the replacement laying method. The single-sleeper continuous laying method requires the cooperation of a large CPG500 track laying unit. Although the technology is mature, the CPG500 track laying unit is inconvenient to transfer, and its practicality is too poor in the construction situation of combining ballasted and ballastless in China. The replacement laying method requires a large number of tool rails to assist in construction, and the increase in tool rails makes the construction efficiency lower. The purpose of the present invention is to study the "push method" of ballastless track laying method, and to design an auxiliary construction tooling to improve the efficiency of the "push method" in ballasted track laying. Summary of the invention

[0003] The invention aims to solve the problems that the existing ballastless track laying method "pushing method" is inefficient in ballasted track laying, a large number of workers are required to use crowbars to guide the rails at the rail ends, a large number of rubber pads under the rails are knocked off when the rails are guided forward, and the rails are easy to overturn the sleepers.

[0004] The present invention provides the following technical solution: a ballasted track "push method" track laying auxiliary construction device, comprising a rotating wheel, a wheel axle and a rail support seat; two rotating wheels support the wheel axle; two rail support seats are suspended under the wheel axle;

[0005] The rotating wheel is provided with outwardly extending legs, which are arranged in a circular array around the wheel axle. The rotating wheel moves along the line by crossing the sleepers through the legs, and the step distance of the legs matches the distance between the sleepers.

[0006] The two rail support seats are aligned with the rail bearing grooves of the two rails respectively; the rail support seat comprises a seat body and two rail clamps, the two rail clamps are slidably assembled on the seat body face to face, one side of the slot between the two rail clamps is open and the other side is blocked by the block on the rail support seat; when the two rail clamps are close to each other, the clamping claws formed by the two rail clamps clamp the rail head of the rail, and the rail is suspended under the rail support seat with the bottom suspended; when the two rail clamps move away from each other, the rail head of the rail is released; a supporting mechanism is connected between the rail clamp and the rail support seat, and the supporting mechanism is used to limit the sliding of the rail clamp.

[0007] Furthermore, the rotating wheel is connected to the wheel axle through a steering joint; a rotating wheel swing axis and a steering control axis are provided on the steering joint, the connecting line of the rotating wheel swing axis and the steering control axis on the two steering joints is a parallelogram, the wheel axle is connected to the rotating wheel swing axis, and a steering synchronization rod is connected between the two steering control axis; the wheel axle and the steering synchronization rod are respectively connected to the two articulated axes of the steering control rod, and the connecting line of the two articulated axes of the steering control rod and the rotating wheel swing axis and the steering control axis on the same steering joint is a parallelogram; when the steering control rod is swung, the two rotating wheels are pushed to steer synchronously through the steering synchronization rod.

[0008] Furthermore, two axially fixed and circumferentially free sleeves are mounted on the axle, and external threads are engraved on the sleeves, and the external threads are divided into positive thread sections and negative thread sections; the rail support seat is connected to the sleeves through a folding and unfolding mechanism;

[0009] The folding and unfolding mechanism includes two nuts and two suspension rods. The two nuts are respectively screwed with the positive thread section and the negative thread section of the sleeve. The upper end of the suspension rod is hinged with the nut, and the lower end is hinged with the seat body of the rail support seat. When the sleeve is rotated, the two nuts approach or move away from each other, and the rail support seat is lifted or lowered through the suspension rod.

[0010] Furthermore, a positioning ring is fixed on the sleeve between the positive wire section and the negative wire section, and two U-shaped rails are fixed on the top of the seat body of the rail support seat. The two U-shaped rails can be slidably clamped on both sides of the positioning ring. The two U-shaped rails cooperate with the positioning ring to limit the left and right swing of the rail support seat.

[0011] Furthermore, a slot is provided on the bottom surface of the seat body of the rail support seat, and the cross-sectional shape of the slot is an opening at the bottom and a wider interior than the opening; the top of the rail clamping block is slidably fitted in the slot; a screw rod is connected in the slot of the seat body, and both ends of the screw rod are rotatably connected to the seat body, the screw rod includes a positive thread segment and a negative thread segment, and the two rail clamping blocks are respectively threadedly engaged with the positive thread segment and the negative thread segment of the screw rod, and one end of the screw rod passes through the outside of the seat body to be connected to the handwheel.

[0012] Furthermore, a prism segment is provided on a side of the sleeve away from the rotating wheel.

[0013] Furthermore, it also includes an anti-slip rope, and a pull ring is provided on the seat body of the rail support seat;

[0014] During non-track laying operations, one end of the anti-slip rope is connected to the pull ring and the other end is connected to the sleeper;

[0015] During track laying operations, release the connection between the anti-slip rope and the pull ring.

[0016] Furthermore, the legs include a fixed leg and a movable leg, one end of the fixed leg is fixedly connected to the rotating wheel, and the other end is provided with a socket, the movable leg is plugged into the fixed leg, an external positioning hole passing through the socket is provided on the fixed leg, and an internal positioning hole is provided on the movable leg, the fixed leg and the movable leg are fixed by bolts passing through the internal positioning hole and the external positioning hole, and the length of the leg can be adjusted by adjusting the aligned hole position between the internal positioning hole and the external positioning hole.

[0017] Furthermore, an arrow-shaped foot is provided at the end of the movable leg.

[0018] Furthermore, a steering handle is connected to the steering control rod, and the steering handle is perpendicular to the steering control rod.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The invention provides a track laying auxiliary construction device for the "push method" of ballasted lines. Compared with the traditional "push method", it ends the current situation where a large number of operators need to use crowbars to guide the rail ends, solves the construction problem that a large number of rubber pads under the rails will be knocked off when the rails are guided forward, and greatly improves the construction quality of the "push method". The auxiliary construction tooling can well control the pushing direction of the rails, avoid overturning the sleepers, and greatly improve the construction efficiency.

[0021] The length of the outrigger is adjustable to meet the requirements of rail laying for all sleeper spacings. The movable outrigger is replaceable. The movable outrigger is a consumable part and can be replaced, which can reduce the repair of the rotating wheel and ensure the structural strength of the rotating wheel frame.

[0022] The rail support seat can slowly lower the rail. The rail support seat grasps the rail by applying force on both sides and can directly place the rail on the sleeper.

[0023] The two rotating wheels are connected with a steering mechanism, so that the auxiliary construction tooling can be used in a curved section, and the direction can also be corrected through the steering mechanism in a straight section. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of the auxiliary construction device for track laying using the "push method" for ballasted lines;

[0025] Figure 2 This is a front view of the auxiliary construction device for track laying using the "push method" for ballasted lines;

[0026] Figure 3 This is a top view of the auxiliary construction device for track laying using the "push method" for ballasted lines;

[0027] Figure 4 is a three-dimensional diagram of a rail support seat;

[0028] Figure 5 It is a front view of the rail support seat;

[0029] Figure 6 It is a cutaway view of the rail support seat;

[0030] Figure 7 This is the status diagram of the auxiliary construction device for track laying by the "push method" for ballasted lines during the non-track laying operation period;

[0031] Figure 8 This is a schematic diagram of the use of the auxiliary construction device for track laying using the "push method" for ballasted lines;

[0032] Fig. 9 This is a schematic diagram of the structure of the legs.

[0033] In the figure: 1-rotating wheel; 2-wheel axle; 3-rail support seat; 3.1-seat body; 3.2-rail clamp block; 3.3-stopper; 3.4-pull ring; 3.5-slot; 3.6-screw rod; 3.7-handwheel; 3.8-U-shaped rail; 4-leg; 4.1-fixed leg; 4.2-movable leg; 4.3-external positioning hole; 4.4-internal positioning hole; 4.5-bolt; 4.6-arrow shaped support foot; 5-steering joint; 5.1-rotating wheel swing shaft; 5.2-steering control shaft; 6-steering synchronization rod; 7-steering control rod; 7.1-articulated shaft; 8-sleeve; 8.1-positioning ring; 8.2-prismatic segment; 9-nut; 10-suspender rod; 11-anti-slip rope; 12-steering handle; 13-retaining ring; 14-sleeper; 15-rail bearing groove; 16-rail; 17-track laying unit. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] like Figure 1 , Figure 2 , Figure 3 As shown: a ballasted track "push method" track laying auxiliary construction device, including a rotating wheel 1, an axle 2 and a rail support seat 3; two rotating wheels 1 support the axle 2; two rail support seats 3 are suspended under the axle 2; the spacing between the two rail support seats 3 is consistent with the standard rail spacing.

[0036] The rotating wheel 1 is provided with outwardly extending legs 4, which are arranged in a circular array around the wheel axle 2. The rotating wheel 1 moves along the line by crossing the sleepers through the legs 4, and the step distance of the legs 4 matches the sleeper spacing.

[0037] like Fig. 9As shown: the length of the leg 4 can be adjusted to adapt to sleepers of different spacings. The leg 4 includes a fixed leg 4.1 and a movable leg 4.2. One end of the fixed leg 4.1 is fixedly connected to the rotating wheel 1, and the other end is provided with a plug hole. The movable leg 4.2 is plugged into the fixed leg 4.1. The fixed leg 4.1 is provided with an outer positioning hole 4.3 that passes through the plug hole. The movable leg 4.2 is provided with an inner positioning hole 4.4. The fixed leg 4.1 and the movable leg 4.2 are fixed by bolts 4.5 that pass through the inner positioning hole 4.4 and the outer positioning hole 4.3. The length of the leg 4 is adjusted by adjusting the aligned hole position between the inner positioning hole 4.4 and the outer positioning hole 4.3. Specifically, a plurality of outer positioning holes 4.3 are evenly spaced along the length direction on the fixed leg 4.1. When the movable leg 4.2 is pulled out or retracted from the insertion hole of the fixed leg 4.1, the inner positioning hole 4.4 on the movable leg 4.2 is aligned with the outer positioning holes 4.3 at different positions, and then the bolt 4.5 is inserted to fix the position of the movable leg 4.2.

[0038] In this embodiment, the rotating wheel 1 is an octagonal frame. Of course, the rotating wheel 1 can also be other geometric structures. A leg 4 is fixed to each vertex of the rotating wheel 1. The rotating wheel 1 is welded by square tubes, and the fixed leg 4.1 is welded to the rotating wheel 1.

[0039] The end of the movable leg 4.2 is provided with an arrow-shaped foot 4.6. When the rotating wheel 1 rotates, the arrow-shaped foot 4.6 will be inserted into the gravel roadbed to increase the stability of the tooling operation.

[0040] The two rail support seats 3 are aligned with the rail bearing grooves of the two rails respectively; the rail support seat 3 includes a seat body 3.1 and two rail clamps 3.2, the two rail clamps 3.2 are slidably assembled on the seat body 3.1 facing each other, one side of the slot between the two rail clamps 3.2 is open, and the other side is blocked by the stopper 3.3 on the rail support seat 3; the side of the two rail clamps 3.2 close to each other is a curved surface that matches the side of the rail; the two rail clamps 3.2 are close to each other. When approaching, the claws formed by the two rail clamps 3.2 clamp the rail head, and the rail is suspended under the rail support seat 3 with the bottom suspended; when the two rail clamps 3.2 move away from each other, the rail head is released; a supporting mechanism is connected between the rail clamps 3.2 and the rail support seat 3, and the supporting mechanism is used to limit the sliding of the rail clamps 3.2. When the two rail clamps 3.2 clamp the rail, the supporting mechanism limits the sliding of the rail clamps 3.2 to prevent the rail from falling off.

[0041] The rail support seat 3 uses the concave structure below the rail head to clamp the rail, and can directly place the rail on the sleeper. Figure 7 , Figure 8As shown, the track laying unit 17 pushes the front ends of the two rails into the rail support seat 3, and the front ends of the rails are against the stopper 3.3. When the track laying unit 17 pushes the rails forward, the rails push the auxiliary construction tooling forward until one rail is pushed.

[0042] like Figure 1 , Figure 3 As shown: the auxiliary construction tooling can change direction with the line. The rotating wheel 1 is connected to the wheel axle 2 through the steering joint 5, and the rotating wheel 1 can rotate freely on the steering joint 5; the steering joint 5 is provided with a rotating wheel swing shaft 5.1 and a steering control shaft 5.2, and the connecting line of the rotating wheel swing shaft 5.1 and the steering control shaft 5.2 on the two steering joints 5 is a parallelogram, the wheel axle 2 is connected to the rotating wheel swing shaft 5.1, and a steering synchronization rod 6 is connected between the two steering control shafts 5.2; the wheel axle 2 and the steering synchronization rod 6 are respectively connected to the two articulated shafts 7.1 of the steering control rod 7, and the connecting line of the two articulated shafts 7.1 of the steering control rod 7 and the rotating wheel swing shaft 5.1 and the steering control shaft 5.2 on the same steering joint 5 is a parallelogram; when the steering control rod 7 is swung, the two rotating wheels 1 are pushed to steer synchronously through the steering synchronization rod 6.

[0043] The auxiliary construction tooling is connected to the rail through the rail support seat 3. At this time, the auxiliary construction tooling itself cannot turn freely, so the rotating wheel 1 is designed as a steerable structure so that the direction can be flexibly adjusted during the track laying process.

[0044] The steering control rod 7 is connected with a steering handle 12 , which is perpendicular to the steering control rod 7 ; the steering control rod 7 is swung by the steering handle 12 .

[0045] After a rail is pushed, the end of the rail can be smoothly placed into the rail bearing groove. Figure 2 As shown, two sleeves 8 are mounted on the axle 2, which are fixed in the axial direction and free in the circumferential direction. The sleeves 8 are limited by retaining rings 13 at both ends, and the retaining rings 13 are fixed on the axle 2. The sleeves 8 are engraved with external threads, which are divided into positive thread sections and negative thread sections; the rail support seat 3 is connected to the sleeves 8 through a folding and unfolding mechanism.

[0046] The folding and unfolding mechanism includes two nuts 9 and two suspension rods 10. The two nuts 9 are respectively screwed with the positive thread section and the negative thread section of the sleeve 8. The upper end of the suspension rod 10 is hinged to the nut 9, and the lower end is hinged to the seat body 3.1 of the rail support seat 3. When the sleeve 8 is rotated, the two nuts 9 approach or move away from each other, and the rail support seat 3 is lifted or lowered through the suspension rod 10.

[0047] In order to prevent the rail support seat 3 on which the rail is hoisted from swinging, a positioning ring 8.1 is fixed on the sleeve 8 between the positive thread section and the negative thread section, and two U-shaped rails 3.8 are fixed on the top of the seat body 3.1 of the rail support seat 3. The two U-shaped rails 3.8 are slidably clamped on both sides of the positioning ring 8.1, and the positioning ring 8.1 can only slide up and down between the two U-shaped rails 3.8. The two U-shaped rails 3.8 cooperate with the positioning ring 8.1 to limit the left and right swing of the rail support seat 3.

[0048] like Figure 5 , Figure 6 As shown: a slot 3.5 is provided on the bottom surface of the seat body 3.1 of the rail support seat 3, and the cross-sectional shape of the slot 3.5 is an opening at the bottom and the inside is wider than the opening. The slot 3.5 is both a guiding structure and a supporting structure; the top of the rail clamp 3.2 is slidably fitted with the slot 3.5, and the top of the rail clamp 3.2 is fitted with the slot 3.5; a screw rod 3.6 is connected in the slot 3.5 of the seat body 3.1, and the two ends of the screw rod 3.6 are rotatably connected to the seat body 3.1, the screw rod 3.6 includes a positive thread segment and a negative thread segment, and the two rail clamps 3.2 are respectively threadedly engaged with the positive thread segment and the negative thread segment of the screw rod 3.6, and one end of the screw rod 3.6 passes through the seat body 3.1 and is connected to a hand wheel 3.7, and the screw rod 3.6 is driven to rotate by the hand wheel 3.7. When the screw rod 3.6 rotates, the two rail clamps 3.2 are close to clamp the rail or move away from each other to release the rail.

[0049] A prism section 8.2 is provided on the side of the sleeve 8 away from the rotating wheel 1. A wrench is used to apply force to the prism section 8.2 to rotate the sleeve 8, or convex rods are evenly arranged on the sleeve 8 along the circumference, and a sleeve is used to cover the convex rods to rotate the sleeve 8.

[0050] The anti-slip rope 11 is also included. A pull ring 3.4 is provided on the seat body 3.1 of the rail support seat 3. During non-track laying operations, one end of the anti-slip rope 11 is connected to the pull ring 3.4 and the other end is connected to the sleeper to prevent the auxiliary construction tooling from moving uncontrollably. During track laying operations, the connection between the anti-slip rope 11 and the pull ring 3.4 is released.

[0051] The invention provides a track laying auxiliary construction device for the "push method" of ballasted lines. Compared with the traditional "push method", it ends the current situation where a large number of operators need to use crowbars to guide the rail ends, solves the construction problem that a large number of rubber pads under the rails will be knocked off when the rails are guided forward, and greatly improves the construction quality of the "push method". The auxiliary construction tooling can well control the pushing direction of the rails, avoid overturning the sleepers, and greatly improve the construction efficiency.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A track laying auxiliary construction device for ballasted lines using the "push method", characterized in that: It comprises a rotating wheel (1), a wheel axle (2) and a rail support seat (3); the two rotating wheels (1) support the wheel axle (2); and two rail support seats (3) are suspended under the wheel axle (2); The rotating wheel (1) is provided with outwardly extending legs (4), the legs (4) are arranged in a circular array around the wheel axle (2) as the center, the rotating wheel (1) moves along the line by crossing the sleepers through the legs (4), and the step distance of the legs (4) matches the sleeper spacing; The two rail support seats (3) are aligned with the rail bearing grooves of the two rails respectively; the rail support seat (3) comprises a seat body (3.1) and two rail clamps (3.2); the two rail clamps (3.2) are slidably mounted on the seat body (3.1) face to face; one side of the slot between the two rail clamps (3.2) is open and the other side is blocked by a stopper (3.3) on the rail support seat (3); when the two rail clamps (3.2) are close to each other, the clamping claws formed by the two rail clamps (3.2) clamp the rail head of the rail, and the rail is suspended under the rail support seat (3) in a posture with the bottom suspended; when the two rail clamps (3.2) are away from each other, the rail head of the rail is released; a support mechanism is connected between the rail clamp (3.2) and the rail support seat (3), and the support mechanism is used to limit the sliding of the rail clamp (3.2).

2. According to claim 1, a ballasted track "push method" track laying auxiliary construction device is characterized by: The rotating wheel (1) is connected to the wheel axle (2) through a steering joint (5); a rotating wheel swing shaft (5.1) and a steering control shaft (5.2) are provided on the steering joint (5); the connecting line of the rotating wheel swing shafts (5.1) and the steering control shafts (5.2) on the two steering joints (5) is a parallelogram; the wheel axle (2) is connected to the rotating wheel swing shaft (5.1); a steering synchronization rod (6) is connected between the two steering control shafts (5.2); the wheel axle (2) and the steering synchronization rod (6) are respectively connected to two articulated shafts (7.1) of a steering control rod (7); the connecting line of the two articulated shafts (7.1) of the steering control rod (7) and the rotating wheel swing shaft (5.1) and the steering control shaft (5.2) on the same steering joint (5) is a parallelogram; when the steering control rod (7) is swung, the two rotating wheels (1) are pushed to steer synchronously through the steering synchronization rod (6).

3. According to claim 2, a ballasted track "push method" track laying auxiliary construction device is characterized by: The wheel axle (2) is sleeved with two axially fixed and circumferentially free sleeves (8), the sleeves (8) are engraved with external threads, and the external threads are divided into positive thread sections and negative thread sections; the rail support seat (3) is connected to the sleeves (8) through a folding and unfolding mechanism; The folding and unfolding mechanism comprises two nuts (9) and two suspension rods (10). The two nuts (9) are respectively screwed with the positive thread section and the negative thread section of the sleeve (8). The upper end of the suspension rod (10) is hinged with the nut (9), and the lower end is hinged with the seat body (3.1) of the rail support seat (3). When the sleeve (8) is rotated, the two nuts (9) are moved closer or farther away, and the rail support seat (3) is lifted or lowered through the suspension rod (10).

4. The track laying auxiliary construction device for ballasted track by "push method" according to claim 3 is characterized by: A positioning ring (8.1) is fixed on the sleeve (8) between the positive thread section and the negative thread section, and two U-shaped rails (3.8) are fixed on the top of the seat body (3.1) of the rail support seat (3). The two U-shaped rails (3.8) are slidably clamped on both sides of the positioning ring (8.1), and the two U-shaped rails (3.8) cooperate with the positioning ring (8.1) to limit the left and right swing of the rail support seat (3).

5. The track laying auxiliary construction device for ballasted track by "push method" according to claim 1 is characterized by: The bottom surface of the seat body (3.1) of the rail support seat (3) is provided with a slot (3.5), and the cross-sectional shape of the slot (3.5) is that the bottom is open and the inside is wider than the opening; the top of the rail clamp (3.2) is slidably fitted with the slot (3.5); a screw rod (3.6) is connected inside the slot (3.5) of the seat body (3.1), and the two ends of the screw rod (3.6) are rotatably connected to the seat body (3.1), and the screw rod (3.6) includes a positive thread segment and a negative thread segment, and the two rail clamps (3.2) are respectively screwed with the positive thread segment and the negative thread segment of the screw rod (3.6), and one end of the screw rod (3.6) passes through the seat body (3.1) and is connected to the hand wheel (3.7) outside.

6. The track laying auxiliary construction device for ballasted track by "push method" according to claim 4 is characterized by: A prism section (8.2) is arranged on the side of the sleeve (8) away from the rotating wheel (1).

7. The track laying auxiliary construction device for ballasted track by "push method" according to claim 1 is characterized by: It also includes an anti-slip rope (11), and a pull ring (3.4) is arranged on the seat body (3.1) of the rail support seat (3); During non-track laying operations, one end of the anti-slip rope (11) is connected to the pull ring (3.4) and the other end is connected to the sleeper; During the track laying operation, the connection between the anti-slip rope (11) and the pull ring (3.4) is released.

8. The track laying auxiliary construction device for ballasted track by "push method" according to claim 1 is characterized by: The support leg (4) comprises a fixed support leg (4.1) and a movable support leg (4.2); one end of the fixed support leg (4.1) is fixedly connected to the rotating wheel (1) and the other end is provided with a plug hole; the movable support leg (4.2) is plugged into the fixed support leg (4.1); an outer positioning hole (4.3) penetrating the plug hole is provided on the fixed support leg (4.1); an inner positioning hole (4.4) is provided on the movable support leg (4.2); the fixed support leg (4.1) and the movable support leg (4.2) are fixed by bolts (4.5) passing through the inner positioning hole (4.4) and the outer positioning hole (4.3); and the length of the support leg (4) is adjusted by adjusting the aligned hole position between the inner positioning hole (4.4) and the outer positioning hole (4.3).

9. The track laying auxiliary construction device for ballasted track by "push method" according to claim 8, characterized in that: The end of the movable supporting leg (4.2) is provided with an arrow-shaped supporting foot (4.6).

10. The track laying auxiliary construction device for ballasted track by "push method" according to claim 2, characterized in that: The steering control rod (7) is connected with a steering handle (12), and the steering handle (12) is perpendicular to the steering control rod (7).

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