Ballast cleaning device and track maintenance machine

Abstract

The application provides a ballast cleaning device and track maintenance machinery, which comprises a bearing frame, a plurality of running wheels, a sleeper surface ballast cleaning mechanism and a rail waist ballast plough. The running wheels are arranged on the bearing frame and are used for rolling and supporting the rails. The sleeper surface ballast cleaning mechanism is arranged on one side of the bearing frame along the length direction and is used for cleaning the ballast on the sleepers. The rail waist ballast plough is arranged on both sides of the bearing frame along the length direction and is used for cleaning the ballast at the rail waist of the rails. The ballast cleaning device provided by the application can be installed on the track maintenance machinery and follow the track maintenance machinery to work. The ballast on the top surface of the sleepers inside the track bed on both sides of the rail head can be cleaned by screening and backfilling and burying. In order to facilitate the subsequent tamping vehicle operation, the clamp device of the tamping vehicle is not affected by the ballast, and the tamping vehicle can directly clamp the rail to perform the track lifting operation. Meanwhile, the operator can clearly observe the sleeper condition through the work site, and the tamping operation can be accurately performed. Therefore, the subsequent tamping efficiency and effect can be improved.

Description

Technical Field

[0001] This application relates to the field of track maintenance technology, specifically designing a track bed ballast cleaning device and track maintenance machinery. Background Technology

[0002] Railways require periodic major overhauls and cleaning. During these operations, the amount of ballast to be backfilled after the waste is removed still meets requirements. However, the backfilling area is located on both sides of the rails and inside the ballast bed, and the amount of ballast is often substantial. This leads to severe ballast accumulation on the ballast bed, causing problems such as the inability to properly clamp the rails during subsequent tamping operations and the operator's inability to determine the position of the tamping pick.

[0003] Currently, the main solution to the above problems is to rely on multiple laborers to manually clean up sections of the ballast using rakes. This method incurs significant labor costs and poses considerable safety hazards. Therefore, there is a need for a ballast clearing and sweeping device that can operate continuously with road maintenance machinery and requires minimal human intervention to replace manual labor in handling the ballast after screening.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] To address one of the aforementioned technical deficiencies, this application provides a ballast cleaning device and road maintenance machinery.

[0006] The first aspect of this application provides a ballast cleaning device, comprising:

[0007] Support frame;

[0008] Multiple traveling wheels are disposed on the bearing frame and are used for rolling support on the rail;

[0009] A ballast removal mechanism is provided on one side of the bearing frame along its length and is used to remove oak stones from the sleepers.

[0010] A rail web ballast plow is installed on both sides of the bearing frame along its length and is used to clear ballast from the web of the rail.

[0011] Optionally, the ballast-laying mechanism includes a front ballast plow;

[0012] The front ballast plow includes a first mounting base, a first plate, a second plate, and a third plate;

[0013] The first mounting base is connected to the supporting frame. The first plate, the second plate and the third plate are arranged sequentially along the length of the supporting frame, and the first plate, the second plate and the third plate are all connected to the first mounting base. The opposite ends of the first plate and the second plate are close together, and the opposite ends of the first plate and the second plate are separated. The third plate is provided with a rail clearance gap.

[0014] Optionally, the first mounting base can move along the length of the support frame and be fixed to the support frame by fasteners.

[0015] Optionally, the ballast-laying mechanism includes a central ballast plow;

[0016] The middle ballast plow is located on one side of the front ballast plow along the width direction of the bearing frame;

[0017] The central ballast plow includes a second mounting base, a fourth plate, and a fifth plate;

[0018] The second mounting base is connected to the supporting frame. The fourth plate and the fifth plate are both connected to the second mounting base. The ends of the fourth plate and the fifth plate that are close to the front ballast plow are close together, and the ends of the fourth plate and the fifth plate that are away from the front ballast plow are separated.

[0019] Optionally, the second mounting base can move along the length of the support frame and is fixed to the support frame by fasteners.

[0020] Optionally, the ballast removal mechanism includes a cleaning device;

[0021] The cleaning device is mounted on the supporting frame;

[0022] The cleaning device is located on the side of the middle ballast plow that is away from the front ballast plow.

[0023] Optionally, two rail web ballast plows are respectively provided on both sides of the bearing frame along the length direction. The two rail web ballast plows on the same side of the bearing frame have their opposite ends close together to extend to both sides of the rail web, while the other opposite ends of the two rail web ballast plows are far apart.

[0024] A second aspect of this application provides a road maintenance machine, comprising:

[0025] Vehicle body;

[0026] A traction mechanism, which is connected to the vehicle body;

[0027] The aforementioned ballast cleaning device is connected to the traction mechanism.

[0028] Optionally, the road maintenance machinery includes a lifting mechanism;

[0029] One end of the lifting mechanism is connected to the vehicle body, and the other end of the lifting mechanism is connected to the ballast cleaning device.

[0030] Optionally, a mounting device is provided on the vehicle body;

[0031] The lower hook is provided on the support frame of the ballast cleaning device for the track bed;

[0032] When the lifting mechanism raises the ballast cleaning device to its maximum height, the lower hook of the ballast cleaning device can be attached to the attachment device.

[0033] Optionally, the mounting device includes:

[0034] A third mounting bracket, which is connected to the vehicle body;

[0035] A fixing plate is fixedly connected to the vehicle body. The fixing plate has a guide groove, the width of which gradually decreases in the direction from the supporting frame to the vehicle body.

[0036] An upper hook is rotatably connected to the fixed plate;

[0037] A telescopic component, wherein the telescopic component is respectively connected to the third mounting base and the upper hook;

[0038] The telescopic component extends to drive the upper hook to avoid the guide groove. During the process of the lifting mechanism lifting the ballast cleaning device, the lower hook can move into the guide groove. When the telescopic component retracts, it can drive the upper hook to reset so as to engage with the lower hook.

[0039] Optionally, the road maintenance machinery includes a traverse mechanism;

[0040] One end of the lateral movement mechanism is connected to the vehicle body, and the other end of the lateral movement mechanism is connected to the load-bearing frame. The lateral movement mechanism can extend and retract, driving the load-bearing frame to move along the direction perpendicular to the rail.

[0041] Optionally, a tow frame is provided on the vehicle body;

[0042] A traction mating seat is provided on the load-bearing frame;

[0043] The traction mechanism includes two connecting rods that are parallel to each other. The two ends of the connecting rods are respectively engaged with the traction frame and the traction mating seat using spherical bearings.

[0044] The traction frame, the traction mating seat, and the two connecting rods form a four-bar linkage.

[0045] By adopting the above technical solution, this application has the following beneficial effects:

[0046] The ballast cleaning device provided in this application can be installed on track maintenance machinery and operate alongside it. The device includes a rail web ballast plow to clean the ballast that has been screened and backfilled and buried on both sides of the rail head, and a sleeper surface ballast cleaning mechanism to clean the ballast on the top surface of the inner side of the sleepers. This allows the tamping machine to operate without being affected by ballast, directly clamping the rail for track lifting. Simultaneously, the ballast at the sleeper working position is also cleaned by the sleeper surface ballast cleaning mechanism. Operators can clearly observe the sleeper condition from the working position and accurately perform tamping operations. This improves the efficiency and effectiveness of subsequent tamping. Attached Figure Description

[0047] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0048] Figure 1 This is a schematic diagram of the ballast cleaning device provided in an embodiment of this application;

[0049] Figure 2 A partially enlarged schematic diagram of the ballast cleaning device provided in an embodiment of this application;

[0050] Figure 3 A front view schematic diagram of the front ballast plow of the ballast cleaning device provided in an embodiment of this application;

[0051] Figure 4 A top view of the front ballast plow of the track bed ballast cleaning device provided in the embodiments of this application;

[0052] Figure 5 A schematic diagram of the middle ballast plow in the ballast cleaning device provided in this embodiment of the application;

[0053] Figure 6 A schematic diagram of the cleaning device of the ballast cleaning device provided in the embodiments of this application;

[0054] Figure 7 A schematic diagram of the track web ballast plow for the track bed ballast cleaning device provided in this embodiment of the application;

[0055] Figure 8 A front view schematic diagram of the ballast cleaning device assembled with road maintenance machinery provided in an embodiment of this application;

[0056] Figure 9 A side view of the ballast cleaning device assembled with road maintenance machinery, as provided in an embodiment of this application.

[0057] Figure 10 This is a schematic diagram of the structure of the mounting device for road maintenance machinery provided in the embodiments of this application.

[0058] Reference numerals: 1. Bearing frame; 11. Guide rail; 2. Running wheel; 3. Ballast laying mechanism; 31. Front ballast plow; 311. First mounting seat; 312. First plate; 313. Second plate; 314. Third plate; 315. Rail clearance gap; 32. Middle ballast plow; 321. Second mounting seat; 322. Fourth plate; 323. Fifth plate; 33. Cleaning device; 331. Fifth mounting seat; 332. Rotating mechanism; 333. Cleaning brush; 4. Rail web ballast plow; 41. Fourth mounting seat; 42. Sixth plate; 43. Pressure plate; 5. Lower hook; 6. Traction mechanism; 6. Connecting rod; 61. Traction frame; 62. Traction mating seat; 63. Lifting mechanism; 7. Hooking device; 8. Third mounting seat; 81. Fixing plate; 82. Guide groove; 821. Upper hook; 83. Telescopic component; 84. Car body; 9. Lateral movement mechanism; 10. Rail; 100. Detailed Implementation

[0059] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0060] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0061] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] Example 1

[0064] See Figures 1 to 7 As shown, this application provides a ballast cleaning device for railway tracks, including a supporting frame 1, multiple traveling wheels 2, a sleeper ballast removal mechanism 3, and a rail web ballast removal plow 4. The traveling wheels 2 are disposed on the supporting frame 1 and are used for rolling support on the rail 100. The sleeper ballast removal mechanism 3 is disposed on one side of the supporting frame 1 along its length and is used to clean ballast on the sleepers. The rail web ballast removal plow 4 is disposed on both sides of the supporting frame 1 along its length and is used to clean ballast at the rail web of the rail 100.

[0065] The ballast cleaning device provided in this application can be installed on track maintenance machinery and operate alongside it. The device includes a rail web ballast plow 4 to clean the ballast that has been screened and backfilled and buried on both sides of the rail head, and a sleeper surface ballast removal mechanism 3 to clean the ballast on the top surface of the inner side of the sleepers. This allows the tamping machine to operate without being affected by ballast, directly clamping the rail for track lifting. Simultaneously, the ballast at the sleeper working position is also cleaned by the sleeper surface ballast removal mechanism 3. Operators can clearly observe the sleeper condition from the working position and accurately perform tamping operations. This improves the efficiency and effectiveness of subsequent tamping.

[0066] In some possible implementations, the ballast-laying mechanism 3 includes a front ballast plow 31. The front ballast plow 31 includes a first mounting base 311, a first plate 312, a second plate 313, and a third plate 314. The first mounting base 311 is connected to the supporting frame 1. The first plate 312, the second plate 313, and the third plate 314 are arranged sequentially along the length of the supporting frame 1, and each plate is connected to the first mounting base 311. The opposite ends of the first plate 312 and the second plate 313 are close together, while the opposite ends are separated. The third plate 314 has a rail 100 clearance notch 315. The first plate 312 and the second plate 313 form a triangular structure; in use, the pointed end leads forward, guiding the ballast to both sides through the first plate 312 and the second plate 313. The rail 100 is located at the rail 100 avoidance gap 315 on the third plate 314. The second plate 313 can guide excess ballast to the third plate 314, and the third plate 314 then guides excess ballast to the outside of the rail 100. Among them, the first plate 312, the second plate 313, and the third plate 314 are all made of nylon material.

[0067] Furthermore, the first plate 312, the second plate 313, and the third plate 314 are all provided with longitudinal grooves, and the first mounting base 311 is provided with connecting holes corresponding to each longitudinal groove. Bolts can pass through the longitudinal grooves and be threaded into the connecting holes on the first mounting base 311. The height of the first plate 312, the second plate 313, and the third plate 314 can be adjusted by adjusting the fit between the bolts and the longitudinal grooves at different positions, thereby adapting to different rails 100 and sleepers.

[0068] In some possible implementations, the first mounting base 311 can move along the length of the support frame 1 and is fixed to the support frame 1 by fasteners. The first mounting base 311 can drive the first plate 312, the second plate 313 and the third plate 314 to adjust their positions along the extension direction perpendicular to the rail 100, thereby adapting to rails of different positions, widths and spacings.

[0069] Furthermore, a guide rail 11 is provided on the supporting frame 1 along the extension direction of the rail 100, and a guide rail groove is provided on the guide rail 11. A guide block is provided on the first mounting base 311, and the guide block is disposed in the guide rail groove and can slide along the guide rail groove. Fasteners can pass through the first mounting base 311 and be fixed to the guide rail 11.

[0070] In some possible implementations, the pillow-surface ballast laying mechanism 3 includes a central ballast plow 32, which is located on one side of the front ballast plow 31 along the width direction of the supporting frame 1. The central ballast plow 32 includes a second mounting base 321, a fourth plate 322, and a fifth plate 323. The second mounting base 321 is connected to the supporting frame 1, and both the fourth plate 322 and the fifth plate 323 are connected to the second mounting base 321. The ends of the fourth plate 322 and the fifth plate 323 near the front ballast plow 31 are close together, while the ends of the fourth plate 322 and the fifth plate 323 away from the front ballast plow 31 are separated. Along the direction of the ballast cleaning car's movement, the middle ballast plow 32 is located behind the front ballast plow 31. Building upon the ballast cleaning done by the front ballast plow 31, it further cleans the ballast on the sleepers, ensuring effective slag removal. The fourth plate 322 and the fifth plate 323 form a triangular structure; during use, the pointed ends lead forward, guiding the ballast to both sides through the fourth plate 322 and the fifth plate 323. Both the fourth plate 322 and the fifth plate 323 are made of nylon material.

[0071] Furthermore, both the fourth plate 322 and the fifth plate 323 are provided with longitudinal grooves, and the second mounting base 321 is provided with connecting holes corresponding to each longitudinal groove. Bolts can pass through the longitudinal grooves and be threaded into the connecting holes on the second mounting base 321. The height of the fourth plate 322 and the fifth plate 323 can be adjusted by adjusting the fit between the bolts and the longitudinal grooves at different positions, thereby adapting to different rails 100 and sleepers.

[0072] In some possible implementations, the second mounting base 321 can move along the length of the support frame 1 and is fixed to the support frame 1 by fasteners. The second mounting base 321 can drive the fourth plate 322 and the fifth plate 323 to adjust their positions along the direction of extension perpendicular to the rail 100, thereby adapting to rails of different positions, widths, and spacings.

[0073] Furthermore, a second guide rail is provided on the supporting frame 1 along the extension direction of the rail 100, and a second guide rail groove is provided on the second guide rail. A second guide block is provided on the second mounting base 321, and the second guide block is disposed in the second guide rail groove and can slide along the second guide rail groove. Fasteners can pass through the second mounting base 321 and be fixed to the second guide rail.

[0074] In some possible implementations, the ballast removal mechanism 3 includes a cleaning device 33, which is disposed on the supporting frame 1 and located on the side of the middle ballast plow 32 away from the front ballast plow 31. Along the direction of travel of the cleaning vehicle, the cleaning device 33 is located behind the middle ballast plow 32. A rotary brush cleaning device 33 is installed at the tail of the ballast removal plow. After the front ballast plow 31 and the middle ballast plow 32 have completed the removal of a large amount of ballast, the remaining ballast can be cleaned by the rotary brush. This three-stage ballast cleaning ensures that the sleeper work area is exposed, facilitating the tamping operator's identification of the pick position.

[0075] In some possible implementations, the cleaning device 33 includes a fifth mounting base 331, a rotating mechanism 332, and a plurality of cleaning brushes 333. The fifth mounting base 331 is connected to the support frame 1, the rotating mechanism 332 is disposed on the fifth mounting base 331, the cleaning brushes 333 are connected to the rotating mechanism 332, and the rotating mechanism 332 can drive the cleaning brushes 333 to rotate.

[0076] In some possible implementations, two rail web ballast plows 4 are respectively arranged on both sides of the bearing frame 1 along its length. The two rail web ballast plows 4 on the same side of the bearing frame 1 have their opposite ends close together to extend to both sides of the rail web of the rail 100, while their opposite ends are far apart. The side of the two rail web ballast plows 4 that are close together is located in front of the travel direction, and the side of the two rail web ballast plows 4 that are far apart is located behind the travel direction. The rail web ballast plows 4 can spread out the ballast around the rail web of the rail 100. Obstacles such as fishplates, bulging fishplates, and terminal blocks can be avoided by adjusting the spacing between the two rail web ballast plows.

[0077] In some possible implementations, the rail web ballast plow 4 includes a fourth mounting base 41, a sixth plate 42, and a pressure plate 43. The fourth mounting base 41 is mounted on the supporting frame 1. The sixth plate 42 has a groove, and the pressure plate 43 has a through groove that matches the groove. Fasteners pass through the through groove and the groove in sequence and are connected to the fourth mounting base 41. The angle of the sixth plate 42 can be adjusted by the cooperation of the fasteners, the through groove, and the groove. The sixth plate 42 is made of nylon material.

[0078] In some possible implementations, the support frame 1 is welded from square tubing to provide support for the entire device, and the running wheels 2 are mounted on the support frame 1 to provide guidance and friction to overcome resistance during movement.

[0079] Example 2

[0080] See Figures 1 to 10As shown, this application provides a track maintenance machine, including a car body 9, a traction mechanism 6, and the ballast cleaning device described in Embodiment 1 above. The traction mechanism 6 is connected to the car body 9, and the ballast cleaning device is connected to the traction mechanism 6. The track maintenance machine provided in this embodiment includes the ballast cleaning device as described in Embodiment 1. The ballast cleaning device has a front rail web ballast plow 4 that can clean the ballast that has been screened and backfilled and buried on both sides of the rail head, and a sleeper surface ballast cleaning mechanism 3 that can clean the ballast on the top surface of the inner side of the sleeper. This allows the clamping device of the tamping machine to be unaffected by the ballast during subsequent tamping operations, enabling it to directly clamp the rail for track lifting. At the same time, the ballast at the sleeper working position is also cleaned by the sleeper surface ballast cleaning mechanism 3. The operator can clearly observe the condition of the sleepers through the working position and accurately perform the tamping operation. This improves the efficiency and effect of subsequent tamping.

[0081] In some possible implementations, the track maintenance machinery includes a lifting mechanism 7, one end of which is connected to the vehicle body 9, and the other end of which is connected to the ballast cleaning device. One end of the lifting mechanism 7 is welded to the vehicle body 9, and the other end is connected to the device. When the machine is in operation, it provides continuous downward pressure to the device to ensure sufficient friction to overcome travel resistance. When the machine is in retraction position, it provides lifting force to the device. The hydraulic cylinder in the lifting mechanism 7 is equipped with a flow control valve to adjust its lifting force.

[0082] In some possible implementations, a hook-up device 8 is provided on the vehicle body 9, and a lower hook 5 is provided on the supporting frame 1 of the ballast cleaning device. When the lifting mechanism 7 raises the ballast cleaning device to its maximum height, the lower hook 5 of the ballast cleaning device can be hooked onto the hook-up device 8. When the ballast cleaning device is retracted, the hook-up device 8 engages with the lower hook 5, at which point the ballast cleaning device can be locked, keeping it in the retracted state.

[0083] In some possible implementations, the mounting device 8 includes a third mounting base 81, a fixing plate 82, an upper hook 83, and a telescopic component 84. The third mounting base 81 is connected to the vehicle body 9, and the fixing plate 82 is fixedly connected to the vehicle body 9. The fixing plate 82 has a guide groove 821, the width of which gradually decreases in the direction from the supporting frame 1 to the vehicle body 9. The upper hook 83 is rotatably connected to the fixing plate 82. The telescopic component 84 is connected to the third mounting base 81 and the upper hook 83 respectively. When the telescopic component 84 extends, it can drive the upper hook 83 to avoid the guide groove 821. During the process of the lifting mechanism 7 lifting the ballast cleaning device, the lower hook 5 can move into the guide groove 821. When the telescopic component 84 retracts, it can drive the upper hook 83 to reset so as to engage with the lower hook 5.

[0084] In some possible implementations, the track maintenance machinery includes a traverse mechanism 10, one end of which is connected to the vehicle body 9 and the other end of which is connected to the support frame 1. The traverse mechanism 10 can extend and retract, driving the support frame 1 to move in a direction perpendicular to the rail 100.

[0085] The lateral movement mechanism 10 provides lateral pressure to the ballast cleaning device, keeping the guide wheel flange of the ballast cleaning device in contact with the rail. At the same time, during the return operation, the lateral displacement can be adjusted to ensure accurate return positioning.

[0086] In some possible implementations, a traction frame 62 is mounted on the vehicle body 9, and a traction mating seat 63 is mounted on the load-bearing frame 1. The traction mechanism 6 includes two parallel connecting rods 61, with each end of the connecting rod 61 engaging with the traction frame 62 and the traction mating seat 63 via spherical bearings. The traction frame 62, the traction mating seat 63, and the two connecting rods 61 form a four-bar linkage 61 mechanism. The traction frame 62 is welded to the vehicle body 9, and the connecting rods 61 are rotatably connected to both the traction frame 62 and the traction mating seat 63. This four-bar linkage 61 mechanism provides stable traction for the operation of the ballast cleaning device without affecting its lifting, lowering, or forward / backward movement.

[0087] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0088] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0089] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A ballast cleaning device for track beds, characterized in that, include: Support frame; Multiple traveling wheels are disposed on the bearing frame and are used for rolling support on the rail; A ballast removal mechanism is provided on one side of the bearing frame along its length and is used to remove oak stones from the sleepers. A rail web ballast plow is installed on both sides of the bearing frame along its length and is used to clear ballast from the web of the rail.

2. The ballast cleaning device according to claim 1, characterized in that, The ballast-laying mechanism includes a front ballast plow; The front ballast plow includes a first mounting base, a first plate, a second plate, and a third plate; The first mounting base is connected to the supporting frame. The first plate, the second plate and the third plate are arranged sequentially along the length of the supporting frame, and the first plate, the second plate and the third plate are all connected to the first mounting base. The opposite ends of the first plate and the second plate are close together, and the opposite ends of the first plate and the second plate are separated. The third plate is provided with a rail clearance gap.

3. The ballast cleaning device according to claim 2, characterized in that, The first mounting base is movable along the length of the support frame and is fixed to the support frame by fasteners.

4. The ballast cleaning device according to claim 2, characterized in that, The ballast-laying mechanism includes a central ballast plow; The middle ballast plow is located on one side of the front ballast plow along the width direction of the bearing frame; The central ballast plow includes a second mounting base, a fourth plate, and a fifth plate; The second mounting base is connected to the supporting frame. The fourth plate and the fifth plate are both connected to the second mounting base. The ends of the fourth plate and the fifth plate that are close to the front ballast plow are close together, and the ends of the fourth plate and the fifth plate that are away from the front ballast plow are separated.

5. The ballast cleaning device according to claim 4, characterized in that, The second mounting base is movable along the length of the support frame and is fixed to the support frame by fasteners.

6. The ballast cleaning device according to claim 4, characterized in that, The ballast removal mechanism includes a cleaning device; The cleaning device is mounted on the supporting frame; The cleaning device is located on the side of the middle ballast plow that is away from the front ballast plow.

7. The track bed ballast cleaning device according to any one of claims 1-6, characterized in that, Two rail web ballast plows are respectively arranged on both sides of the bearing frame along the length direction. The two rail web ballast plows on the same side of the bearing frame are close together at opposite ends so as to extend to both sides of the rail web, while the other ends of the two rail web ballast plows are far apart.

8. A road maintenance machine, characterized in that, include: Vehicle body; A traction mechanism, which is connected to the vehicle body; The ballast cleaning device as described in any one of claims 1-7, wherein the ballast cleaning device is connected to the traction mechanism.

9. The road maintenance machinery according to claim 8, characterized in that, Including upgrading institutions; One end of the lifting mechanism is connected to the vehicle body, and the other end of the lifting mechanism is connected to the ballast cleaning device.

10. The road maintenance machinery according to claim 9, characterized in that, The vehicle body is equipped with a mounting device; The lower hook is provided on the support frame of the ballast cleaning device for the track bed; When the lifting mechanism raises the ballast cleaning device to its maximum height, the lower hook of the ballast cleaning device can be attached to the attachment device.

11. The road maintenance machinery according to claim 10, characterized in that, The mounting device includes: A third mounting bracket, which is connected to the vehicle body; A fixing plate is fixedly connected to the vehicle body. The fixing plate has a guide groove, the width of which gradually decreases in the direction from the supporting frame to the vehicle body. An upper hook is rotatably connected to the fixed plate; A telescopic component, wherein the telescopic component is respectively connected to the third mounting base and the upper hook; The telescopic component extends to drive the upper hook to avoid the guide groove. During the process of the lifting mechanism lifting the ballast cleaning device, the lower hook can move into the guide groove. When the telescopic component retracts, it can drive the upper hook to reset so as to engage with the lower hook.

12. The road maintenance machinery according to any one of claims 8-11, characterized in that, Including the traverse mechanism; One end of the lateral movement mechanism is connected to the vehicle body, and the other end of the lateral movement mechanism is connected to the load-bearing frame. The lateral movement mechanism can extend and retract, driving the load-bearing frame to move along the direction perpendicular to the rail.

13. The road maintenance machinery according to any one of claims 8-11, characterized in that, A towing frame is installed on the vehicle body; A traction mating seat is provided on the load-bearing frame; The traction mechanism includes two connecting rods that are parallel to each other. The two ends of the connecting rods are respectively engaged with the traction frame and the traction mating seat using spherical bearings. The traction frame, the traction mating seat, and the two connecting rods form a four-bar linkage.

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