A compaction device for railway subgrade construction fill material

Abstract

This invention relates to the field of railway engineering construction equipment technology, specifically disclosing a compaction device for railway subgrade construction fill, including a frame-changing structure, a compaction structure, and an adjustment structure. The adjustment structure is detachably mounted on the compaction structure, and the compaction structure is movably mounted on the frame-changing structure via the adjustment structure. Both the compaction structure and the adjustment structure are rotatable. The adjustment structure drives the support in the compaction structure to flip, allowing the compaction roller to switch between two modes: cylindrical compaction and impact compaction with support. When the support is retracted into the groove, the compaction roller is a conventional cylindrical shape, suitable for uniform compaction of conventional fills such as sand and gravel. When the support is flipped and unfolded, the compaction roller will be lifted due to the support contacting the ground as it rotates, and then fall to impact the subgrade under gravity, forming an impact compaction effect. This enhances the compaction of fills such as clay that are difficult to compact. The compaction mode can be flexibly adjusted according to the material and compaction standards of the subgrade fill.

Description

Technical Field

[0001] This invention relates to the field of railway engineering construction equipment technology, specifically to a compaction device for railway subgrade construction fill. Background Technology

[0002] Road construction requires subgrade compaction. Compaction equipment moves back and forth, and under pressure, the subgrade soil deforms, thus compacting and strengthening the subgrade to ensure the road's load-bearing capacity and stability, preventing potholes and bumps. Therefore, specialized compaction equipment is needed to fully compact the fill material. Currently, existing railway subgrade compaction equipment has the following shortcomings:

[0003] The transition between mobile and operational states is inconvenient. The existing compaction device is fixedly connected to the vehicle body and uses the compaction roller as wheels to achieve mobile compaction. In non-operational states (such as when moving to another site), the compaction roller is in long-term contact with the ground, which can easily cause wear. In addition, the overall flexibility of the equipment is poor, especially since it cannot be moved on railways with rails.

[0004] The compaction method is limited, and the compaction structure of existing compaction devices (such as compaction rollers) is mostly fixed in shape, often cylindrical or triangular. It is difficult to adjust the compaction pressure and method according to the type of roadbed fill material (such as sand, gravel, clay, etc.) or compaction requirements. Summary of the Invention

[0005] To address the shortcomings of existing technologies, a compaction device for railway subgrade construction fill material is provided. This device solves the problems of inconvenient movement and limited compaction methods in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a compaction device for railway subgrade construction fill material, comprising a frame-changing structure, a compaction structure, and an adjustment structure; the adjustment structure is detachably mounted on the compaction structure, the compaction structure is movably mounted on the frame-changing structure via the adjustment structure, and both the compaction structure and the adjustment structure are rotatable; the frame-changing structure is used to support the compaction structure and to be driven by a transfer car body, the adjustment structure is used to drive the compaction structure and change the rolling mode of the compaction structure, and the compaction structure is used to rotate and apply force to compact the subgrade.

[0007] Preferably, the frame-changing structure includes a main frame, an adapter, a drive crank, and a pair of support units; the main frame is concave, and both sides of the main frame are provided with retaining edges; both ends of the main frame have cross-shaped sliding grooves; the upper wall of the middle part of the main frame has an insertion hole; the adapter is fixedly installed in the middle of the main frame; the drive crank is cross-shaped, and its four ends are symmetrical hexagonal rod structures; one end of the drive crank is movably inserted into the insertion hole for storage; and a pair of support units are symmetrically arranged on both ends of the main frame.

[0008] Preferably, the support unit includes a baffle, a shaft arm, a first screw, a sliding seat, a pair of locking rods, a wheel frame, a wheel, and a pair of connecting arms; the baffle is detachably mounted on one end of the main frame and is provided with a rubber pad; one end of the shaft arm is movably engaged on one end of the main frame and can rotate upwards on the main frame; the shaft arm is prevented from rotating downwards by a retaining edge; one end of the first screw is movably embedded in the left side wall of the main frame, and the other end of the first screw movably passes through the middle of the slide groove; the middle of one end of the first screw is provided with a drive port corresponding to the drive crank; the sliding seat is movably embedded in the slide groove, and the sliding... The moving seat is screwed onto the first screw at the middle. One end of each of the pair of locking rods is symmetrically arranged at the upper and lower ends of the sliding seat, and the other end of each locking rod movably passes through the baffle. The other end of each locking rod can be inserted into one end of the shaft arm. The wheel frame is movably arranged on the lower wall of one end of the main frame, and the wheel frame is symmetrically arranged with compensation grooves. The wheel is movably arranged in the other end of the wheel frame, and the wheel is close to the compensation groove. One end of each of the pair of connecting arms is movably arranged in the middle of the front and rear side walls of the sliding seat, and the other end of each connecting arm is tilted to the left. The other end of each connecting arm is movably connected to the compensation groove of the wheel frame, and the other end of each connecting arm can move along the compensation groove.

[0009] Preferably, the rolling structure includes a rolling roller, a pair of support seats, and two pairs of linkage components; the sidewall of the rolling roller is symmetrically provided with a pair of grooves, and each groove has a connecting start port in the middle; the pair of support seats are both arc-shaped, and one end of each pair of support seats is movably placed in one end of the groove via a pin; the pair of support seats are movably embedded in the groove, and the support seats and the grooves fit together; the pair of linkage components are arranged in a front-to-back arrangement between the pair of support seats, and the linkage components are located in the middle of the rolling roller.

[0010] Preferably, the linkage assembly includes a linkage seat, a pair of universal joints, and a pair of support arms. The linkage seat is movably disposed in the middle of the roller. The linkage seat has helical holes at the middle of both ends and a sliding port in the middle of the linkage seat. One end of the pair of universal joints is symmetrically disposed on the upper and lower sides of the middle of the linkage seat. One end of the pair of support arms is fixedly disposed on the other end of the universal joints, and the other end of the support arms is inclined and movably passes through the start-up port. The other end of the support arms is movably connected to the support seat.

[0011] Preferably, the switching structure includes a pair of roller caps, a sliding shaft, a pair of second screws, a pair of gears, and a chain; the pair of roller caps are detachably fastened to both ends of the rolling roller, and the roller caps are fixed at equal intervals by bolts; a sleeve is provided in the middle of the pair of roller caps; the pair of roller caps are movably disposed between the other ends of the shaft arm through the sleeve; both ends of the sliding shaft are detachably inserted between the sleeves of the roller caps, and the sliding shaft cannot rotate; the upper and lower side walls of the sliding shaft are symmetrically provided with limiting grooves that fit with the sliding opening; the sliding shaft movably passes through the sliding opening in the middle of the linkage seat; the pair of second screws are movably disposed between the roller caps, and the second screws are symmetrically located on both sides of the sliding shaft; both ends of the pair of second screws movably pass through the roller caps; the pair of second screws movably pass through the spiral holes of the linkage seat and are screwed together; both ends of the pair of second screws have a drive opening corresponding to the drive crank; the pair of gears are fixedly fitted onto one end of the second screw and are symmetrical to each other; the chain is movably fitted between the gears.

[0012] Preferably, the drive handle can be inserted into the first screw and the second screw, and drive the drive handle to rotate the first screw and the second screw.

[0013] Preferably, the rotation of the second screw drives the connecting seat to move on the sliding shaft, and the support arm drives the support seat to flip.

[0014] Preferably, the wheel can be located above or below the lower wall of the roller.

[0015] The railway subgrade construction fill compaction device provided by this invention effectively solves the problems of inconvenient movement and single compaction method in the prior art through the coordinated design of the frame replacement structure, compaction structure and replacement structure. Its beneficial effects are as follows:

[0016] 1. Flexible switching between conventional and impact compaction: By changing the structure to drive the support in the compaction structure to flip, the compaction roller can switch between two modes: cylindrical compaction and impact compaction with support. When the support is retracted into the groove, the compaction roller is a conventional cylindrical shape, suitable for uniform compaction of conventional fillers such as sand and gravel. When the support is flipped and unfolded, the compaction roller will be lifted as it rotates due to the support contacting the ground, and then fall to impact the roadbed by gravity, forming an impact compaction effect, which enhances the compaction degree of fillers that are difficult to compact, such as clay. The compaction mode can be flexibly adjusted according to the material of the roadbed filler (such as sand, gravel, and clay) and the compaction standard, avoiding insufficient compaction quality or over-compaction caused by a single compaction method, and improving the stability and service life of the railway roadbed.

[0017] 2. Linked lifting of wheels and rollers: The sliding seat is moved by the first screw in the support unit, which drives the connecting arm to adjust the wheel frame angle, allowing the wheels to switch between raised (the roller is on the ground during compaction) and lowered (the wheels are on the ground during relocation). During relocation, the roller is suspended in the air, avoiding wear caused by prolonged contact with the ground. At the same time, the wheel support equipment moves, improving mobility on complex terrains such as railway tracks. No complicated disassembly steps are required. The load-bearing state of the roller and wheels can be switched within minutes by simply operating the screw drive with a crank handle, reducing construction preparation time and improving work efficiency.

[0018] 3. Unified control of drive handle: The cross-shaped drive handle is adapted to the drive ports of the first and second screws to achieve unified control of movement state switching and compaction mode adjustment, simplifying the operation process and reducing the difficulty of manual operation.

[0019] 4. Controllable support rotation angle and compaction roller height: When the second screw rotates, the moving distance of the connecting seat on the sliding shaft can be precisely controlled, thereby driving the support to rotate to different angles through the support arm, changing the effective compaction radius and impact force of the compaction roller; at the same time, the first screw adjusts the height difference between the wheel and the compaction roller, which can precisely control the pressure of the compaction roller on the roadbed and meet the parameter requirements of different compaction processes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the disassembled state of the frame replacement structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the assembly state of the frame replacement structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the crushing structure of the present invention in a split state;

[0024] Figure 5 This is a schematic diagram of the linkage component structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the disassembled state of the interchangeable structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the assembly state of the interchangeable structure of the present invention;

[0027] Figure 8 for Figure 5 A magnified structural diagram at point A in the diagram.

[0028] In the diagram: 1. Frame changing structure, 11. Main frame, 12. Adapter seat, 13. Drive crank, 14. Support unit, 141. Baffle, 142. Shaft arm, 143. First screw, 144. Sliding seat, 145. Locking rod, 146. Wheel frame, 147. Wheel, 148. Linkage arm, 2. Rolling structure, 21. Rolling roller, 22. Support seat, 23. Linkage assembly, 231. Linkage seat, 232. Universal shaft link, 233. Support arm, 3. Changing structure, 31. Roller cap, 32. Sliding shaft, 33. Second screw, 34. Gear, 35. Chain, 4. Slide groove, 5. Compensation groove, 6. Sliding port, 7. Limiting groove, 8. Embedded groove, 9. Starting port. Detailed Implementation

[0029] The following will refer to the appendices in the embodiments of the present invention. Figures 1-8 For further details:

[0030] like Figure 1 As shown, the present invention provides a technical solution: a compaction device for railway subgrade construction fill material, including a frame-changing structure 1, a compaction structure 2, and an adjustment structure 3; the adjustment structure 3 is detachably mounted on the compaction structure 2, the compaction structure 2 is movably mounted on the frame-changing structure 1 through the adjustment structure 3, and both the compaction structure 2 and the adjustment structure 3 are rotatable; the frame-changing structure 1 is used to support the compaction structure 2 and to be driven by the transfer car body, the adjustment structure 3 is used to drive the compaction structure 2 and change the rolling mode of the compaction structure 2, and the compaction structure 2 is used to rotate and apply force to compact the subgrade.

[0031] like Figure 2 As shown, the replacement frame structure 1 further includes a main frame 11, an adapter 12, a drive crank 13, and a pair of replacement units 14. The main frame 11 is concave, and the main frame 11 has retaining edges 101 near both ends of the side walls. The main frame 11 has cross-shaped grooves 4 in the middle of both ends. The main frame 11 has an insertion hole in the upper middle wall. The adapter 12 is fixedly installed in the middle of the main frame 11. The drive crank 13 is cross-shaped, and its four ends are symmetrical hexagonal rod structures. One end of the drive crank 13 is movably inserted into the insertion hole for storage. A pair of replacement units 14 are symmetrically arranged on both ends of the main frame 11. The adapter 12 connects to the vehicle body to drive the equipment to move. The main frame 11 supports the installation of the replacement units 14. The drive crank 13 controls the equipment.

[0032] More specifically, the design of the concave main frame 11 and the cross-shaped slide groove 4 enables the stable sliding and positioning of the support unit 14, ensuring the structural rigidity of the equipment in the moving and operating state. The drive handle 13 and the hexagonal drive port 10 of the first screw 143 are adapted to achieve quick connection and power transmission, making the operation simple and reliable.

[0033] like Figure 2 and Figure 3 As shown, further, the support unit 14 includes a baffle 141, a shaft arm 142, a first screw 143, a sliding seat 144, a pair of locking rods 145, a wheel frame 146, a wheel 147, and a pair of connecting arms 148; the baffle 141 is detachably mounted on one end of the main frame 11, and a rubber pad is provided on the baffle 141; one end of the shaft arm 142 is movably locked onto one end of the main frame 11, and the shaft arm 142 can be rotated upward on the main frame 11; the shaft arm 142 is blocked from rotating downward by the retaining edge 101; the first screw 143... One end of the first screw 143 is movably embedded in the left side wall of the main frame 11, and the other end of the first screw 143 movably passes through the middle of the slide groove 4. A drive port 10 corresponding to the drive crank 13 is provided in the middle of one end of the first screw 143. The sliding seat 144 is movably embedded in the slide groove 4, and the middle of the sliding seat 144 is screwed onto the first screw 143. One end of a pair of locking rods 145 is symmetrically arranged at the upper and lower ends of the sliding seat 144, and the other end of the locking rods 145 movably passes through the baffle 141. The other end of the locking rods 145 can be inserted into one end of the shaft arm 142. Inside, a wheel frame 146 is movably mounted on the lower wall of one end of the main frame 11, and the wheel frame 146 is symmetrically provided with compensation grooves 5. A wheel 147 is movably mounted inside the other end of the wheel frame 146, and the wheel 147 is close to the compensation groove 5. One end of a pair of connecting arms 148 is movably mounted on the middle of the front and rear side walls of the sliding seat 144, and the other end of the connecting arms 148 is tilted to the left. The other end of the connecting arms 148 is movably connected to the compensation groove 5 of the wheel frame 146, and the other end of the connecting arms 148 can move along the compensation groove 5. The wheel frame 148 is covered by a baffle 141. The slide groove 4 and the shock absorber, through the rotation of the first screw 143, cause the sliding seat 144 to move under force, and drive the locking rod 145 to pass through the baffle 141. The locking rod 145 can be inserted into one end of the shaft arm 142 for locking, or the locking rod 145 can be released from the shaft arm 142 to unlock. After unlocking, the shaft arm 142 can be flipped upward on the main frame 11. When the sliding seat 144 moves, the wheel frame 146 can be flipped by the inclined linkage arm 148 to adjust the wheel 147 to be on the ground or raised. The wheel 147 can be located above or below the lower wall of the crushing roller 21.

[0034] More specifically, the plug-in locking structure between the locking rod 145 and the shaft arm 142 ensures the reliable fixation of the shaft arm 142 in the horizontal position, guaranteeing the stability of the equipment during movement. The screw drive between the first screw 143 and the sliding seat 144 converts the rotational motion into linear motion, enabling the linkage lifting of the wheel 147 and the rolling roller 21. This design is simple to operate and has high transmission efficiency. The design of the compensation groove 5 solves the motion interference problem of the linkage arm 148 during the rotation of the wheel frame 146, and ensures that after the locking rod 145 is unlocked, the shaft arm 142 can rotate upward and the wheel 147 remains raised.

[0035] like Figure 4As shown, further, the compaction structure 2 includes a compaction roller 21, a pair of support seats 22, and two pairs of linkage components 23; the compaction roller 21 has a pair of symmetrical grooves 8 on its side wall, and each groove 8 has a connecting start port 9 in the middle; the pair of support seats 22 are both arc-shaped, and one end of each pair of support seats 22 is movably placed in one end of the groove 8 through a pin; the pair of support seats 22 are movably embedded in the groove 8, and the support seats 22 fit into the groove 8; the pair of linkage components 23 are arranged in a front-to-back manner between the pair of support seats 22, and the linkage components 23 are located in the middle of the compaction roller 21; the compaction roller 21 rotates to compact the roadbed, and the linkage components 23 control the rotation of the support seats 22; when the support seats 22 are rotated and opened, the compaction roller 21 rotates to increase its height and then descends, achieving the compaction and impact effect.

[0036] More specifically, the flip-out structure design of the support 22 enables the single rolling roller 21 to switch between conventional rolling and impact rolling modes, improving the adaptability and versatility of the equipment. The linkage component 23 adopts a combination structure of universal joint connecting rod 232 and support arm 233 to ensure that the support 22 is subjected to uniform force and moves smoothly during the flipping process, avoiding jamming.

[0037] like Figure 4 , Figure 5 and Figure 8 As shown, the linkage assembly 23 further includes a linkage seat 231, a pair of universal joints 232, and a pair of support arms 233. The linkage seat 231 is movably disposed in the middle of the rolling roller 21. The linkage seat 231 has spiral holes at the middle of both ends and a sliding port 6 in the middle of the linkage seat 231. One end of the pair of universal joints 232 is symmetrically disposed on the upper and lower sides of the middle of the linkage seat 231. One end of the pair of support arms 233 is fixedly disposed on the other end of the universal joints 232, and the other end of the support arms 233 is inclined and movably passes through the start port 9. The other end of the support arms 233 is movably connected to the support seat 22. The linkage seat 231 is driven by the second screw 33 to move at the upper limit of the sliding shaft 32. The support seat 22 is supported and flipped by the inclined support arms 233. The flipping of the support seat 22 will drive the support arms 233 to flip and move by means of the universal joints 232.

[0038] More specifically, the threaded transmission between the helical hole and the second screw 33 converts the rotational motion into linear motion, enabling precise control of the rotation of the support 22. The cooperation between the sliding port 6 and the sliding shaft 32 ensures the precise movement trajectory of the connecting seat 231, preventing deviation and swaying, and improving the stability of the mechanism. The universal joint 232 solves the problem of multi-plane motion coordination during the rotation of the support 22, and can adapt to complex changes in motion trajectory. The design of the tilting arm 233 converts the linear motion of the connecting seat 231 into the rotational motion of the support 22, realizing the effective transmission and amplification of force and reducing drive energy consumption.

[0039] like Figure 6 and Figure 7 As shown, further, the replacement structure 3 includes a pair of roller caps 31, a sliding shaft 32, a pair of second screws 33, a pair of gears 34, and a chain 35; the pair of roller caps 31 are detachably fastened to both ends of the rolling roller 21, and the roller caps 31 are fixed at equal intervals by bolts. A sleeve is provided in the middle of the pair of roller caps 31, and the pair of roller caps 31 are movably set between the other ends of the shaft arm 142 through the sleeve. The two ends of the sliding shaft 32 are detachably inserted between the sleeves of the roller caps 31, and the sliding shaft 32 cannot rotate. The upper and lower side walls of the sliding shaft 32 are symmetrically provided with limiting grooves 7 that fit with the sliding opening 6. The sliding shaft 32 moves through the sliding opening 6 in the middle of the connecting seat 231. The pair of second screws 33 are movably set between the roller caps 31, and the second screws 33 are symmetrically located on both sides of the sliding shaft 32. The two ends of the pair of second screws 33 move through the roller caps 31, and the pair of second screws 33 move through the roller caps 31. The connecting seat 231 has a spiral hole that is screwed together. Both ends of the pair of second screws 33 have drive ports 10 corresponding to the drive handle 13. A pair of gears 34 are fixedly fitted onto one end of the second screws 33 and are symmetrical to each other. The chain 35 is movably fitted between the gears 34. The roller cap 31 is installed at both ends of the rolling roller 21 for transfer support. By driving one of the second screws 33 to rotate through the drive handle 13, the other second screw 33 can be driven to rotate by the gears 34 and the chain 35. This allows for synchronous driving of the connecting seat 231 by two people for labor-saving control. The rotation of the second screw 33 causes the connecting seat 231 to move on the sliding shaft 32, and the support arm 233 causes the support seat 22 to flip. The drive handle 13 can be inserted into the first screw 143 and the second screw 33 and drive the first screw 143 and the second screw 33 to rotate.

[0040] More specifically, the detachable snap-fit ​​design of the roller cap 31 facilitates the assembly and disassembly of the rolling roller 21 and the interchangeable structure 3, improving equipment maintenance efficiency; the detachable insertion of the sliding shaft 32 and the roller cap 31 and the design of the limiting groove 7 ensure the linear motion accuracy of the linkage seat 231 and avoid offset and shaking during the movement; the synchronous transmission mechanism of the gear 34 and the chain 35 realizes the synchronous drive of a pair of second screws 33, ensuring that the force on both sides of the support seat 22 is uniform, the flipping action is coordinated and consistent, and two people can drive synchronously for labor-saving control.

[0041] Working principle:

[0042] S1. First, the equipment is movably connected to the existing equipment vehicle body through the adapter seat 12 on the main frame 11, and the equipment can be moved and turned by means of the vehicle body.

[0043] S2. During equipment movement, the roller 21 in the compaction structure 2 is supported and limited by the shaft arm 142 in the support unit 14. Since the roller cap 31 in the adjustment structure 3 is symmetrically arranged at both ends of the roller 21, and the roller cap 31 is movably connected to the shaft arm 142, the movement of the shaft arm 142 drives the roller 21 and the roller cap 31 to rotate, thereby performing columnar rolling compaction construction.

[0044] S3. During the cylindrical rolling rolling of the roller 21, the locking rod 145 is inserted into the inner locking limit of the movable connection of the shaft arm 142, so that the shaft arm 142 and the main frame 11 in the frame changing structure 1 remain parallel and connected.

[0045] S4. When it is necessary to change the crushing method, the drive crank 13 is inserted into the drive port 10 at one end of the first screw 143 to apply force and rotate, causing the sliding seat 144 in the linkage assembly 23 to be subjected to force and move in the sliding groove 4. The sliding seat 144 drives the locking rod 145 away from the shaft arm 142 to unlock. At the same time as the sliding seat 144 moves to the side of the adapter seat 12 to unlock, it will drive the linkage arm 148 to slide in the compensation groove 5 of the wheel frame 146, keeping the wheel 147 raised and the crushing roller 21 on the ground.

[0046] S5. By rotating the crank handle 13, the second screw 33 in the replacement structure 3 is rotated synchronously between the two second screws 33 and the cap through the linkage of the gear 34 and the chain 35. This causes the connecting seat 231 to be stressed and to be at the upper limit of the sliding shaft 32. The connecting seat 231 is stressed and slides on the sliding shaft 32 through the sliding port 6, and drives the inclined support arm 233 to exert force on the support seat 22, causing the support seat 22 to flip open from the groove 8. The support seat 22 will be located outside the rolling roller 21. As the support seat 22 flips, the support arm 233 passes through the starting port 9 through the universal joint connecting rod 232, so that the support arm 233 can be flipped and adjusted within the range of the starting port 9, which can provide stable support for the support seat 22.

[0047] S6. When the two support seats 22 are symmetrically flipped open, the shaft arm 142 also disengages from the locking rod 145 and unlocks. Therefore, as the equipment moves, the compaction roller 21 is subjected to force and rotates. During the rotation, it is raised with the help of the arc-shaped support seats 22. When the support seats 22 contact the ground, the compaction roller 21 is raised with the help of the upward flipping of the shaft arm 142. As it rotates, the compaction roller 21 falls due to gravity and hits the ground to strengthen the compaction.

[0048] S7. When the equipment is being transported and moved, when the support 22 contacts the ground, the rolling roller 21 drives the shaft arm 142 to rise. Since the locking rod 145 has been released from the shaft arm 142, the first screw 143 can be rotated to move the sliding seat 144 towards the adapter seat 12. With the help of the inclined connecting arm 148, the wheel frame 146 is flipped downwards. The wheel frame 146 then drives the wheel 147 to descend and contact the ground. Then, with the help of the drive crank 13, the second screw 33 is rotated to reset the support 22 into the groove 8. The rolling roller 21 then descends under gravity. With the help of the stop 101, the shaft arm 142 is limited and the rolling roller 21 is suspended in the air, moving with the help of the wheel 147.

[0049] S8. When the roller 21 contacts the ground, it performs cylindrical roller pressing. The clockwise arranged support seats 22 can be placed on the left and right sides of the roller 21, neither of which contacts the ground to achieve a suspended state. At this time, the second screw 33 is started to rotate, which makes it easier to open the support seats 22 without causing operational difficulties due to the weight of the roller 21. When the support seats 22 are flipped open, one of the support seats 22 contacts the ground and raises the roller 21. Then, the wheel 147 can be lowered in the unlocked state of the locking rod 145, so that the wheel 147 contacts the ground. Then, when the mobile device rotates the roller 21, the support seats 22 are lifted off the ground, and the roller 21 is suspended, which makes it easy to reset the support seats 22 and realize the alternation of the wheel 147, the roller 21, and the support seats 22.

[0050] Since the arc-shaped support 22 in the equipment is arranged clockwise, the orientation of the two ends of the rolling roller 21 needs to be set according to the actual equipment pulling or pushing movement. That is, the orientation of the support 22 needs to be set. The support 22 needs to rotate with the rolling roller 21 so that one end of the support 22 connected to the groove 8 contacts the ground first, and the other end of the flipped and opened support 22 contacts the ground to realize the rotation and lifting of the rolling roller 21.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Other modifications or functional substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A compaction device for railway subgrade construction fill material, characterized in that, It includes a frame-changing structure (1), a compaction structure (2), and an interchange structure (3); the interchange structure (3) is detachably mounted on the compaction structure (2), the compaction structure (2) is movably mounted on the frame-changing structure (1) through the interchange structure (3), and the compaction structure (2) and the interchange structure (3) are rotatable; The frame-changing structure (1) is used to support the compaction structure (2) and the transfer vehicle body. The switching structure (3) is used to drive the compaction structure (2) and change the rolling mode of the compaction structure (2). The compaction structure (2) is used to rotate and apply force to compact the roadbed. The frame-changing structure (1) includes a main frame (11) and a pair of support units (14); the main frame (11) is concave, and the main frame (11) is provided with retaining edges (101) near both ends of the sidewalls; the pair of support units (14) are symmetrically arranged on both ends of the main frame (11); The support unit (14) includes a shaft arm (142); one end of the shaft arm (142) is movably mounted on one end of the main frame (11), and the shaft arm (142) can be rotated upward on the main frame (11); The rolling structure (2) includes a rolling roller (21), a pair of support seats (22) and two pairs of linkage components (23); The sidewall of the rolling roller (21) is symmetrically provided with a pair of grooves (8), and the middle of each groove (8) is provided with a connecting start port (9). The pair of support seats (22) are both arc-shaped. One end of each pair of support seats (22) is movably placed in one end of the groove (8) by a pin. The pair of support seats (22) are movably embedded in the groove (8), and the support seats (22) and the groove (8) fit together. The pair of linkage components (23) are arranged in a front-to-back arrangement between the pair of support seats (22), and the linkage components (23) are located in the middle of the rolling roller (21). The linkage assembly (23) includes a linkage seat (231), a pair of universal joints (232), and a pair of support arms (233). The connecting seat (231) is movably disposed in the middle of the rolling roller (21). The connecting seat (231) has a spiral hole at the middle of both ends and a sliding port (6) at the middle of the connecting seat (231). One end of a pair of universal shaft connecting rods (232) is symmetrically disposed on the upper and lower sides of the middle of the connecting seat (231). One end of a pair of support arms (233) is fixedly disposed on the other end of the universal shaft connecting rods (232). The other end of the support arms (233) is inclined and movably passes through the starting port (9). The other end of the support arms (233) is movably connected to the support seat (22). The switching structure (3) includes a pair of roller caps (31), a sliding shaft (32), a pair of second screws (33), a pair of gears (34), and a chain (35); A pair of roller caps (31) are detachably fastened to both ends of the rolling roller (21), and the roller caps (31) are fixed at equal intervals by bolts. A sleeve post is provided in the middle of the pair of roller caps (31). The pair of roller caps (31) are respectively movably set between the other ends of the shaft arm (142) through the sleeve post. The two ends of the sliding shaft (32) are detachably inserted between the sleeve posts of the roller caps (31), and the sliding shaft (32) cannot rotate. The upper and lower side walls of the sliding shaft (32) are symmetrically provided with limiting grooves (7) that fit with the sliding opening (6). The sliding shaft (32) moves through the sliding opening (6) in the middle of the connecting seat (231). The second screws (33) are respectively movably disposed between the roller caps (31), and the second screws (33) are symmetrically located on both sides of the sliding shaft (32). The two ends of the pair of second screws (33) respectively movably pass through the roller caps (31). The pair of second screws (33) respectively movably pass through the spiral holes of the connecting seat (231) and are screwed together. The middle of both ends of the pair of second screws (33) is provided with drive ports (10) corresponding to the drive handle (13). The pair of gears (34) are respectively fixedly fitted on one end of the second screws (33) and are symmetrical to each other. The chain (35) is movably fitted between the gears (34).

2. The compaction device for railway subgrade construction fill material according to claim 1, characterized in that, The frame-changing structure (1) also includes an adapter (12) and a drive crank (13). The main frame (11) has cross-shaped grooves (4) at both ends and the upper wall of the middle part of the main frame (11) has a socket. The adapter (12) is fixedly installed in the middle part of the main frame (11). The drive handle (13) is cross-shaped and its four ends are symmetrical hexagonal rod structures. One end of the drive handle (13) is movably inserted into the socket for storage.

3. The compaction device for railway subgrade construction fill material according to claim 2, characterized in that, The support unit (14) also includes a baffle (141), a first screw (143), a sliding seat (144), a pair of locking rods (145), a wheel frame (146), a wheel (147), and a pair of connecting arms (148). The baffle (141) is detachably mounted on one end of the main frame (11), and a rubber pad is provided on the baffle (141). The shaft arm (142) is blocked by the retaining edge (101) and cannot be rotated downwards. One end of the first screw (143) is movably embedded in the left side wall of the main frame (11), and the other end of the first screw (143) movably passes through the middle of the slide groove (4). A drive port (10) corresponding to the drive crank (13) is provided in the middle of one end of the first screw (143). The sliding seat (144) is movably embedded in the slide groove (4), and the middle of the sliding seat (144) is screwed onto the first screw (143). One end of a pair of locking rods (145) is symmetrically arranged at the upper and lower ends of the sliding seat (144), and the locking rods (145) are respectively... The other end is movable through the baffle (141), the other end of the locking rod (145) can be inserted into one end of the shaft arm (142), the wheel frame (146) is movably set on the lower wall of one end of the main frame (11), and the wheel frame (146) is symmetrically provided with compensation grooves (5), the wheel (147) is movably set in the other end of the wheel frame (146), and the wheel (147) is close to the compensation groove (5), one end of a pair of connecting arms (148) is movably set in the middle of the front and rear side walls of the sliding seat (144), and the other end of the connecting arms (148) is tilted to the left, and the other end of the connecting arms (148) is movably connected to the compensation groove (5) of the wheel frame (146), and the other end of the connecting arms (148) can move along the compensation groove (5).

4. The compaction device for railway subgrade construction fill material according to claim 3, characterized in that, The drive handle (13) can be inserted into the first screw (143) and the second screw (33) and drive the handle (13) to rotate the first screw (143) and the second screw (33).

5. A compaction device for railway subgrade construction fill material according to claim 4, characterized in that, The second screw (33) rotates, causing the connecting seat (231) to move on the sliding shaft (32), and the support arm (233) causes the support seat (22) to flip.

6. The compaction device for railway subgrade construction fill material according to claim 5, characterized in that, The wheel (147) can be positioned above or below the lower wall of the roller (21).

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