Ballast laying device for railway subgrade construction

Abstract

The application discloses a ballast laying device for railway subgrade construction, which comprises a ballast laying vehicle, a concave self-checking falling impact ejection material leakage filling and leveling device, an intervention type positive and negative attraction type ballast close adhesion mechanism and a compaction element. The application belongs to the technical field of subgrade construction and specifically relates to a ballast laying device for railway subgrade construction. According to the situation that uneven ground concave before ballast laying affects ballast laying and concave filling cannot be automatically performed, a following impact ejection material leakage filling mode is adopted to realize the technical effect of self-detection filling of the concave ground without any detection components under the condition that no detection components are used. According to the situation that ballast is loose and not compacted when the ballast laying machine lays the ballast, a positive and negative attraction mode is adopted to realize mutual attraction between the ballasts and further improve the compactness between the ballasts.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of roadbed construction, and particularly relates to a ballast laying device for railway roadbed construction. BACKGROUND

[0002] Ballast refers to broken stone used for supporting track sleepers, and is a common track bed structure in early stage. Before laying tracks, a layer of broken stone is laid on the roadbed, and then compacted, and then sleepers and tracks are laid.

[0003] In railway construction, the road is generally flattened first, and then ballast is laid on the upper part. However, for the ground with depressions, the flattening work of the road often does not achieve the ideal effect, so it is necessary to fill and flatten the depressed ground. The existing method is to manually check and fill, which is time-consuming and laborious, and may even delay the railway laying work. Moreover, the existing ballast laying device cannot achieve the technical effect of closely connecting the ballast during laying, resulting in poor compactness and further reducing the laying quality. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a ballast laying device for railway roadbed construction. According to the situation that the unevenness of the ground before laying ballast affects the laying of ballast and cannot automatically fill the depressions, a follow-up impact ejection material filling mode is adopted to achieve the technical effect of self-detection and filling of the depressed ground without any detection components. According to the situation that the ballast is loose and not compact during laying by the ballast laying machine, a positive and negative attraction mode is adopted to achieve mutual attraction between the ballast, thereby further improving the compactness between the ballast.

[0005] The technical scheme adopted by the present application is as follows: the present application provides a ballast laying device for railway roadbed construction, which comprises a ballast laying vehicle, a depression self-detection type falling impact ejection material filling and leveling device, an intervention type positive and negative attraction type ballast close fitting mechanism and a compacting member. The depression self-detection type falling impact ejection material filling and leveling device is arranged on the ballast laying vehicle. The intervention type positive and negative attraction type ballast close fitting mechanism is arranged on the ballast laying vehicle. The compacting member is arranged on the ballast laying vehicle. The intervention type positive and negative attraction type ballast close fitting mechanism is arranged between the depression self-detection type falling impact ejection material filling and leveling device and the compacting member. The depression self-detection type falling impact ejection material filling and leveling device comprises a leveling connecting column, a leveling cylinder, a self-resetting type blocking assembly, a follow-up rotary falling impact device and a feeding port. The leveling connecting column is rotatably arranged on the ballast laying vehicle. The leveling cylinder is arranged on the leveling connecting column. The self-resetting type blocking assembly is arranged on the side wall of the leveling cylinder. The follow-up rotary falling impact device is arranged in the leveling cylinder. The feeding port is arranged on the leveling cylinder.

[0006] Further, the self-resetting plugging assembly comprises an elastic cavity, a reset spring and a plugging plate, the elastic cavity is arranged in the side wall of the leveling cylinder, one end of the reset spring is arranged in the elastic cavity, a filling hole is arranged on the side wall of the leveling cylinder, the plugging plate is arranged in the filling hole, the other end of the reset spring is connected with the plugging plate, and the plugging plate blocks the filling hole in the initial state.

[0007] Preferably, the follow-up rotating falling and impacting device comprises a mounting shaft, a guide rod, an impacting ball and an auxiliary ball, the mounting shaft is arranged at the center of the inner side wall of the leveling cylinder, the guide rod is arranged on the mounting shaft, the impacting ball is slidingly arranged on the guide rod, and the auxiliary ball is arranged at the bottom of the two sides of the impacting ball.

[0008] Further, the intervention type positive and negative attraction type ballast close-fitting mechanism comprises a ballast storage and discharging device and a positive and negative polarity ballast generating device, the ballast storage and discharging device is arranged on the ballast laying vehicle, the positive and negative polarity ballast generating device is arranged on the ballast storage and discharging device and the ballast laying vehicle, the ballast storage and discharging device comprises a hopper type feeding port, a storage tank, a discharging chute, a discharging cavity and a spacing discharging assembly, the storage tank is arranged on the ballast laying vehicle, the hopper type feeding port is arranged at the upper end of the storage tank, the discharging chute is connected with the storage tank in an inclined manner, the discharging cavity is connected with the discharging chute in a penetrating manner, and the spacing discharging assembly is arranged on the storage tank.

[0009] The spacing discharging assembly comprises a fixed plate, a driving member, a guide limiting member and a discharging partition plate, the fixed plate is arranged on the storage tank, the driving member is arranged on the fixed plate, the guide limiting member is arranged on the storage tank, and the discharging partition plate is connected with the guide limiting member.

[0010] Further, the discharging chute is provided with a partition plate sliding hole, the discharging partition plate is arranged in the partition plate sliding hole in an extending and retracting manner, and the ballast in the falling chute is blocked and released.

[0011] Further preferably, the driving member comprises a rotating shaft one, a rotating shaft two, a meshing gear one, a meshing gear two, an incomplete driving tooth one, an incomplete driving tooth two, a driving motor and a driving fixed member, the rotating shaft one is rotatably arranged on the fixed plate, the rotating shaft two is rotatably arranged on the fixed plate, the meshing gear one is arranged on the rotating shaft one, the meshing gear two is arranged on the rotating shaft two, the meshing gear one is connected with the meshing gear two in a meshing manner, the incomplete driving tooth one is arranged on the rotating shaft one, the incomplete driving tooth two is arranged on the rotating shaft two, the incomplete driving tooth one and the incomplete driving tooth two are arranged at an angle of 180 degrees, the discharging partition plate is provided with a meshing tooth, the incomplete driving tooth one and the incomplete driving tooth two are connected with the meshing tooth respectively, the driving motor fixed member is arranged on the fixed plate, the driving motor is arranged on the driving motor fixed member, and the output end of the driving motor is connected with the rotating shaft one.

[0012] Further, the guide limiting piece comprises a guide limiting groove and a guide plate, the guide limiting groove is arranged on the side wall of the storage box, one end of the guide plate is connected with the blanking baffle, and the other end of the guide plate is slidingly arranged in the guide limiting groove.

[0013] The positive and negative polarity ballast generating device comprises a water tank, a power supply assembly, a spraying pump, a transmission pipe and a spraying head. The water tank is symmetrically arranged below the storage box. The water tank is provided with a water inlet. The power supply assembly is arranged on the outer side wall of the blanking cavity. The spraying pump is through-arranged on the outer wall of the water tank. The transmission pipe is connected with the spraying pump. The spraying head is connected with the transmission pipe and arranged at the blanking opening of the blanking cavity. The power supply assembly comprises a power supply box and power supply wires. The power supply box is arranged on the outer side wall of the blanking cavity. The positive and negative poles of the power supply wires are respectively through-arranged in the water tanks on the two sides, so that the water in the water tanks on the two sides has different charges. The water with positive charges is sprayed on the ballast to make the ballast have positive charges. The water with negative charges is sprayed on the ballast to make the ballast have negative charges. The ballast with positive and negative charges is attracted to each other after falling down, so that the technical effect of closely laying the ballast is achieved.

[0014] Further, the compaction piece comprises a compaction connecting column and a compaction roller. The compaction connecting column is rotationally arranged on the ballast laying vehicle. The compaction roller is arranged on the compaction connecting column.

[0015] The railway ballast laying device has the following beneficial effects: the device can realize self-detection and filling of the concave ground without any detection components, and can realize mutual attraction between the ballast and improve the compactness of the ballast. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the railway ballast laying device according to the present application;

[0017] Figure 2 FIG. 4 is a left view of the railway ballast laying device according to the present application;

[0018] Figure 3 FIG. 6 is a rear view of the railway ballast laying device according to the present application;

[0019] Figure 4 FIG. 7 is a top view of the railway ballast laying device according to the present application;

[0020] Figure 5Structure diagram of the concave self-checking falling impact pop-up material leakage filling and leveling device;

[0021] Figure 6 Longitudinal sectional view of the concave self-checking falling impact pop-up material leakage filling and leveling device;

[0022] Figure 7 Transverse sectional view of the concave self-checking falling impact pop-up material leakage filling and leveling device;

[0023] Figure 8 Structure diagram of the interventional positive and negative attraction type ballast close-fitting mechanism;

[0024] Figure 9 Rear view of the interventional positive and negative attraction type ballast close-fitting mechanism;

[0025] Figure 10 Rear structure diagram of the interventional positive and negative attraction type ballast close-fitting mechanism;

[0026] Figure 11 Bottom structure diagram of the interventional positive and negative attraction type ballast close-fitting mechanism;

[0027] Figure 12 Sectional view of the interventional positive and negative attraction type ballast close-fitting mechanism.

[0028] 1, ballast laying vehicle, 2, concave self-checking falling impact pop-up material leakage filling and leveling device, 3, interventional positive and negative attraction type ballast close-fitting mechanism, 4, compaction member, 5, leveling connecting column, 6, leveling cylinder, 7, self-resetting plugging assembly, 8, follow-up rotating falling impact device, 9, feeding port, 10, elastic cavity, 11, reset spring, 12, plugging plate, 13, filling hole, 14, mounting shaft, 15, guide rod, 16, impact ball, 17, auxiliary top ball, 18, ballast storage and discharging device, 19, positive and negative polarity ballast generating device, 20, hopper-type feeding port, 21, storage tank, 22, discharging chute, 23, discharging cavity, 24, interval discharging assembly, 25, fixed plate, 26, driving member, 27, guide limiting member, 28, discharging partition plate, 29, partition plate sliding hole, 30, rotating shaft one, 31, rotating shaft two, 32, meshing gear one, 33, meshing gear two, 34, incomplete driving tooth one, 35, incomplete driving tooth two, 36, driving motor, 37, driving fixed member, 38, meshing tooth, 39, guide limiting groove, 40, guide plate, 41, water tank, 42, power supply assembly, 43, spraying pump, 44, transmission pipe, 45, spraying head, 46, power supply box, 47, power supply wire, 48, compaction connecting column, 49, compaction roller.

[0029] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the application, and do not limit the application. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, all parts of the present application are insulated.

[0032] As shown in Figure 1 , Figure 3 , the present application provides a ballast laying device for railway subgrade construction, comprising a ballast laying vehicle 1, a recess self-checking falling impact ejection material leakage filling and leveling device 2, an intervening positive and negative suction type ballast close adhesion mechanism 3 and a compaction member 4. The recess self-checking falling impact ejection material leakage filling and leveling device 2 is arranged on the ballast laying vehicle 1, the intervening positive and negative suction type ballast close adhesion mechanism 3 is arranged on the ballast laying vehicle 1, the compaction member 4 is arranged on the ballast laying vehicle 1, and the intervening positive and negative suction type ballast close adhesion mechanism 3 is arranged between the recess self-checking falling impact ejection material leakage filling and leveling device 2 and the compaction member 4.

[0033] As shown in Figure 1 , Figure 3 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the intervention type positive and negative suction ballast close-fitting mechanism 3 comprises a ballast storage and discharging device 18 and a positive and negative polarity ballast generating device 19. The ballast storage and discharging device 18 is arranged on the ballast laying vehicle 1, and the positive and negative polarity ballast generating device 19 is arranged on the ballast storage and discharging device 18 and the ballast laying vehicle 1. The ballast storage and discharging device 18 comprises a hopper type feeding port 20, a storage tank 21, a discharging chute 22, a discharging cavity 23 and a spacing discharging assembly 24. The storage tank 21 is arranged on the ballast laying vehicle 1, the hopper type feeding port 20 is arranged at the upper end of the storage tank 21, the discharging chute 22 is connected to the storage tank 21 in an inclined manner, the discharging cavity 23 is connected to the discharging chute 22 in a penetrating manner, and the spacing discharging assembly 24 is arranged on the storage tank 21. The spacing discharging assembly 24 comprises a fixed plate 25, a driving member 26, a guide limiting member 27 and a discharging partition plate 28. The fixed plate 25 is arranged on the storage tank 21, the driving member 26 is arranged on the fixed plate 25, the guide limiting member 27 is arranged on the storage tank 21, and the discharging partition plate 28 is connected to the guide limiting member 27. The discharging chute 22 is provided with a partition plate sliding hole 29, the discharging partition plate 28 is arranged in the partition plate sliding hole 29 in an extending and retracting manner, and the discharging partition plate 28 blocks and releases the ballast in the falling chute. The driving member 26 comprises a rotating shaft one 30, a rotating shaft two 31, a meshing gear one 32, a meshing gear two 33, an incomplete driving tooth one 34, an incomplete driving tooth two 35, a driving motor 36 and a driving fixing member 37. The rotating shaft one 30 is arranged on the fixed plate 25 in a rotating manner, the rotating shaft two 31 is arranged on the fixed plate 25 in a rotating manner, the meshing gear one 32 is arranged on the rotating shaft one 30, the meshing gear two 33 is arranged on the rotating shaft two 31, the meshing gear one 32 is connected to the meshing gear two 33 in an engaging manner, the incomplete driving tooth one 34 is arranged on the rotating shaft one 30, the incomplete driving tooth two 35 is arranged on the rotating shaft two 31, the incomplete driving tooth one 34 and the incomplete driving tooth two 35 are arranged in a 180-degree manner, the discharging partition plate 28 is provided with a meshing tooth 38, the incomplete driving tooth one 34 and the incomplete driving tooth two 35 are connected to the meshing tooth 38 respectively, the driving fixing member 37 is arranged on the fixed plate 25, the driving motor 36 is arranged on the driving fixing member 37, and the output end of the driving motor 36 is connected to the rotating shaft one 30. The guide limiting member 27 comprises a guide limiting groove 39 and a guide plate 40. The guide limiting groove 39 is arranged on the side wall of the storage tank 21, one end of the guide plate 40 is connected to the discharging partition plate 28, and the other end of the guide plate 40 is arranged in the guide limiting groove 39 in a limiting and sliding manner. The positive and negative polarity ballast generating device 19 comprises a water tank 41, a power supply assembly 42, a spraying pump 43, a transmission pipe 44 and a spraying head 45. The water tank 41 is symmetrically arranged below the storage tank 21, the water tank 41 is provided with a water inlet, the power supply assembly 42 is arranged on the outer side wall of the discharging cavity 23, the spraying pump 43 is arranged on the outer wall of the water tank 41 in a penetrating manner, the transmission pipe 44 is connected to the spraying pump 43, the spraying head 45 is connected to the transmission pipe 44, and the spraying head 45 is arranged at the discharging port of the discharging cavity 23.The power supply assembly 42 comprises a power supply box 46 and a power supply wire 47. The power supply box 46 is arranged on the outer side wall of the discharging cavity 23. The positive and negative poles of the power supply wire 47 are respectively arranged in the two water tanks 41. In this way, the water in the two water tanks 41 is charged with different charges. The water with positive charges is sprayed on the ballast to make the ballast with positive charges. The water with negative charges is sprayed on the ballast to make the ballast with negative charges. The ballast with positive and negative charges is attracted to each other after falling down, so that the technical effect of closely laying the ballast is achieved.

[0034] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 The recess self-checking falling impact pop-up material filling and leveling device 2 comprises a leveling connecting column 5, a leveling cylinder 6, a self-resetting plugging assembly 7, a follow-up rotating falling impact device 8 and a feeding port 9. The leveling connecting column 5 is rotatably arranged on the ballast laying vehicle 1. The leveling cylinder 6 is arranged on the leveling connecting column 5. The self-resetting plugging assembly 7 is arranged on the side wall of the leveling cylinder 6. The follow-up rotating falling impact device 8 is arranged in the leveling cylinder 6. The feeding port 9 is arranged on the leveling cylinder 6. The self-resetting plugging assembly 7 comprises an elastic cavity 10, a reset spring 11 and a plugging plate 12. The elastic cavity 10 is arranged in the side wall of the leveling cylinder 6. One end of the reset spring 11 is arranged in the elastic cavity 10. The filling hole 13 is arranged on the side wall of the leveling cylinder 6. The plugging plate 12 is arranged in the filling hole 13. The other end of the reset spring 11 is connected with the plugging plate 12. In the initial state, the plugging plate 12 blocks the filling hole 13. The follow-up rotating falling impact device 8 comprises a mounting shaft 14, a guide rod 15, an impact ball 16 and an auxiliary top ball 17. The mounting shaft 14 is arranged at the center of the inner side wall of the leveling cylinder 6. The guide rod 15 is arranged on the mounting shaft 14. The impact ball 16 is slidably arranged on the guide rod 15. The auxiliary top ball 17 is arranged at the bottom end of the impact ball 16.

[0035] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The compaction device 4 comprises a compaction connecting column 48 and a compaction roller 49. The compaction connecting column 48 is rotatably arranged on the ballast laying vehicle 1. The compaction roller 49 is arranged on the compaction connecting column 48.

[0036] In specific use, the paving vehicle is started, the paving vehicle moves to drive the leveling cylinder 6 to rotate around the leveling connecting column 5, the leveling cylinder 6 rotates to drive the mounting shaft 14 to rotate, the mounting shaft 14 rotates to drive the guide rod 15 to rotate, the guide rod 15 rotates to drive the impact ball 16 to rotate, the impact ball 16 rotates to drive the auxiliary top ball 17 to rotate, when the guide rod 15 rotates from top to bottom, the impact ball 16 falls from the position close to the mounting shaft 14 to the lower end of the guide rod 15 along the guide rod 15, and under the action of the rotating force, the impact ball 16 impacts the blocking plate 12, at this time, if the ground at this position has a depression, the blocking plate 12 will be pressed down under the action of the impact ball 16 and the auxiliary impact ball 16, at this time, the reset spring 11 is elongated, the filling hole 13 is opened, at this time, the soil in the leveling cylinder 6 flows out from the filling hole 13 to fill the depression; the driving motor 36 is started, the driving motor 36 rotates to drive the rotating shaft one 30 to rotate, the rotating shaft one 30 rotates to drive the meshing gear one 32 to rotate, the meshing gear one 32 rotates to drive the meshing gear two 33 to rotate, the rotating shaft one 30 rotates to drive the incomplete driving tooth one 34 to rotate, the incomplete driving tooth one 34 rotates to drive the meshing teeth 38 on one side to move upwards, thereby driving the discharging partition plate 28 to move upwards, at this time, the discharging chute 22 is opened, the ballast in the falling chute is released and falls into the discharging cavity 23, at the same time, the power supply box 46 and the spraying pump 43 are started, the power supply box 46 makes the water in the water tank 41 on one side carry a negative charge, at the same time, the spraying pump 43 draws the water with a negative charge in the water tank 41 and transmits it into the transmission pipe 44, and then transmits it into the spraying head 45 through the transmission pipe 44 to wet the ballast falling from the discharging cavity 23, so that the ballast carries a negative charge and falls onto the paving ground until the incomplete driving tooth one 34 is separated from the meshing teeth 38, at this time, the meshing gear two 33 rotates to drive the rotating shaft two 31 to rotate, the rotating shaft two 31 rotates to drive the incomplete driving tooth two 35 to rotate, the incomplete driving tooth two 35 rotates to drive the meshing teeth 38 on the other side to move upwards, thereby driving the discharging partition plate 28 to move upwards, at this time, the ballast in the discharging chute 22 on the other side is released and transmitted into the discharging cavity 23, the power supply box 46 makes the water in the water tank 41 on the other side carry a positive charge, at the same time, the spraying pump 43 draws the water with a positive charge in the water tank 41 and transmits it into the transmission pipe 44, and then transmits it into the spraying head 45 through the transmission pipe 44 to wet the ballast falling from the discharging cavity 23, so that the ballast carries a positive charge and falls onto the paving ground, to realize the technical effect of intermittent discharging and paving of ballast with positive and negative charges, at this time, the ballast with a positive charge and the ballast with a negative charge attract each other, to realize the technical effect of close paving of ballast, to further improve the compactness of the paving of ballast, improve the lateral compactness of the ballast, then the compaction roller 49 rotates around the compaction connecting column 48 to longitudinally compact the paved ballast, to further improve the paving quality, the above is the specific working process of the present application, and the next time the use can be repeated.

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the claims.

[0038] While the embodiments of the application have been shown and described, it is to be understood that the embodiments described are only by way of example and are not limiting of the scope of the application. The scope of the application is limited only by the claims and the full scope of equivalents thereof.

[0039] The above description of the present application has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form described. Many modifications and variations are possible in light of this teaching. It was described above, that one embodiment provides a method for producing a semiconductor device. It was also described above, that another embodiment provides a semiconductor device. It was also described above, that yet another embodiment provides a semiconductor device. It was also described above, that still another embodiment provides a semiconductor device. It was also described above, that a further embodiment provides a semiconductor device. It was also described above, that an additional embodiment provides a semiconductor device. It was also described above, that an alternative embodiment provides a semiconductor device. It was also described above, that an another alternative embodiment provides a semiconductor device. It was also described above, that an yet another alternative embodiment provides a semiconductor device. It was also described above, that an still another alternative embodiment provides a semiconductor device. It was also described above, that a further alternative embodiment provides a semiconductor device. It was also described above, that an additional alternative embodiment provides a semiconductor device. It was also described above, that an alternative embodiment provides a semiconductor device. It was also described above, that an another alternative embodiment provides a semiconductor device. It was also described above, that an yet another alternative embodiment provides a semiconductor device. It was also described above, that an still another alternative embodiment provides a semiconductor device. It was also described above, that a further alternative embodiment provides a semiconductor device. It was also described above, that an additional alternative embodiment provides a semiconductor device. It was also described above, that an alternative embodiment provides a semiconductor device. It was also described above, that an another alternative embodiment provides a semiconductor device. It was also described above, that an yet another alternative embodiment provides a semiconductor device. It was also described above, that an still another alternative embodiment provides a semiconductor device. It was also described above, that a further alternative embodiment provides a semiconductor device. It was also described above, that an additional alternative embodiment provides a semiconductor device. It was also described above, that an alternative embodiment provides a semiconductor device. It was also described above, that an another alternative embodiment provides a semiconductor device. It was also described above, that an yet another alternative embodiment provides a semiconductor device. It was also described above, that an still another alternative embodiment provides a semiconductor device. It was also described above, that

Claims

1. A ballast laying device for railway subgrade construction, characterized by: The utility model provides a ballast laying vehicle (1), recess self -checking type falling impact spring -up material leakage filling and leveling device (2), intervening type positive and negative suction type ballast close -contact mechanism (3) and compaction (4), recess self -checking type falling impact spring -up material leakage filling and leveling device (2) is equipped in ballast laying vehicle (1), intervening type positive and negative suction type ballast close -contact mechanism (3) is equipped in ballast laying vehicle (1), compaction (4) is equipped in ballast laying vehicle (1), intervening type positive and negative suction type ballast close -contact mechanism (3) is equipped between recess self -checking type falling impact spring -up material leakage filling and leveling device (2) and compaction (4), recess self -checking type falling impact spring -up material leakage filling and leveling device (2) including leveling connecting column (5), leveling cylinder (6), self-resetting type plugging subassembly (7), follow -up rotary falling impact device (8) and feed inlet (9), leveling connecting column (5) rotation is equipped in ballast laying vehicle (1), leveling cylinder (6) is equipped in leveling connecting column (5), self-resetting type plugging subassembly (7) is equipped in the lateral wall of leveling cylinder (6), follow -up rotary falling impact device (8) is equipped in leveling cylinder (6), and feed inlet (9) is equipped in leveling cylinder (6).

2. A ballast laying device for railway subgrade construction according to claim 1, characterized in that: Self-resetting type plugging subassembly (7) including elastic cavity (10), reset spring (11) and blocking plate (12), elastic cavity (10) is equipped in the lateral wall of leveling cylinder (6), one end of reset spring (11) is equipped in elastic cavity (10), the lateral wall of leveling cylinder (6) is equipped with filling hole (13), and blocking plate (12) is blocked and is equipped in filling hole (13), and the other end of reset spring (11) is connected with blocking plate (12).

3. A ballast laying device for railway subgrade construction according to claim 2, characterized in that: Follow -up rotary falling impact device (8) including mounting shaft (14), guide rod (15), impact ball (16) and auxiliary top ball (17), mounting shaft (14) is equipped at the inside wall center of leveling cylinder (6), guide rod (15) is equipped on mounting shaft (14), impact ball (16) is slidably equipped on guide rod (15), and auxiliary top ball (17) is equipped on both sides of the bottom end of impact ball (16).

4. A ballast laying device for railway subgrade construction according to claim 3, characterized in that: Intervening type positive and negative suction type ballast close -contact mechanism (3) including ballast storage and blanking device (18) and positive and negative polarity ballast generating device (19), ballast storage and blanking device (18) is equipped on ballast laying vehicle (1), and positive and negative polarity ballast generating device (19) is equipped on ballast storage and blanking device (18) and ballast laying vehicle (1), ballast storage and blanking device (18) including bucket -type feed inlet (20), storage tank (21), blanking chute (22), blanking cavity (23) and interval blanking component (24), storage tank (21) is equipped on ballast laying vehicle (1), bucket -type feed inlet (20) is equipped at the upper end of storage tank (21), blanking chute (22) is connected with the inclination of storage tank (21), blanking cavity (23) is connected with blanking chute (22) through, and interval blanking component (24) is equipped on storage tank (21).

5. A ballast laying device for railway subgrade construction according to claim 4, characterized in that: The interval blanking assembly (24) comprises a fixed plate (25), a driving member (26), a guide limiting member (27) and a blanking partition plate (28), the fixed plate (25) is arranged on the storage box (21), the driving member (26) is arranged on the fixed plate (25), the guide limiting member (27) is arranged on the storage box (21), and the blanking partition plate (28) is connected with the guide limiting member (27).

6. A ballast laying device for railway subgrade construction according to claim 5, characterized in that: The blanking chute (22) is provided with a partition plate sliding hole (29), and the blanking partition plate (28) is arranged in the partition plate sliding hole (29) in an extendable manner.

7. A ballast laying device for railway subgrade construction according to claim 6, characterized in that: The driving member (26) comprises a rotating shaft I (30), a rotating shaft II (31), a meshing gear I (32), a meshing gear II (33), an incomplete driving tooth I (34), an incomplete driving tooth II (35), a driving motor (36) and a driving fixing member (37), the rotating shaft I (30) is rotatably arranged on the fixed plate (25), the rotating shaft II (31) is rotatably arranged on the fixed plate (25), the meshing gear I (32) is arranged on the rotating shaft I (30), the meshing gear II (33) is arranged on the rotating shaft II (31), the meshing gear I (32) is connected with the meshing gear II (33) in a meshing manner, the incomplete driving tooth I (34) is arranged on the rotating shaft I (30), the incomplete driving tooth II (35) is arranged on the rotating shaft II (31), the incomplete driving tooth I (34) and the incomplete driving tooth II (35) are arranged at an angle of 180 degrees, the blanking partition plate (28) is provided with a meshing tooth (38), the incomplete driving tooth I (34) and the incomplete driving tooth II (35) are connected with the meshing tooth (38) respectively, the driving fixing member (37) is arranged on the fixed plate (25), the driving motor (36) is arranged on the driving fixing member (37), and the output end of the driving motor (36) is connected with the rotating shaft I (30).

8. A ballast laying device for railway subgrade construction according to claim 7, characterized in that: The guide limiting member (27) comprises a guide limiting groove (39) and a guide plate (40), the guide limiting groove (39) is arranged on the side wall of the storage box (21), one end of the guide plate (40) is connected with the blanking partition plate (28), and the other end of the guide plate (40) is arranged in the guide limiting groove (39) in a limiting and sliding manner.

9. A ballast laying device for railway subgrade construction according to claim 8, characterized in that: The positive and negative polarity ballast generating device (19) comprises a water tank (41), a power supply assembly (42), a spraying pump (43), a transmission pipe (44) and a spraying head (45), the water tank (41) is symmetrically arranged below the storage box (21), the water tank (41) is provided with a water inlet member, the power supply assembly (42) is arranged on the outer side wall of the blanking cavity (23), the spraying pump (43) is through-arranged on the outer wall of the water tank (41), the transmission pipe (44) is connected with the spraying pump (43), the spraying head (45) is connected with the transmission pipe (44), and the spraying head (45) is arranged at the blanking opening of the blanking cavity (23); the power supply assembly (42) comprises a power supply box (46) and a power supply wire (47), the power supply box (46) is arranged on the outer side wall of the blanking cavity (23), and the positive and negative poles of the power supply wire (47) are through-arranged in the water tanks (41) on the two sides respectively.

10. A ballast laying device for railway subgrade construction according to claim 9, characterized in that: The compaction device (4) comprises a compaction connecting column (48) and a compaction roller (49), the compaction connecting column (48) is rotatably arranged on the ballast laying vehicle (1), and the compaction roller (49) is arranged on the compaction connecting column (48).

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