A roller brush type mechanical sand removal device and sand removal vehicle

Abstract

This application provides a roller brush type mechanical sand removal device and sand removal vehicle. The sand removal device includes: a mechanical sand removal component, with a sand pushing shell at the lower end of the mechanical sand removal component; a roller brush component is connected to the end of the sand pushing shell away from the mechanical sand removal component, and the rotation direction of the roller brush component matches the working direction to achieve bidirectional operation function; the sand removal vehicle includes a sand removal vehicle body, on which a sand removal device is provided; it has the beneficial effect of being used for daily maintenance sand removal operations and for dealing with situations where tracks are buried, and is applicable to the technical field of railway maintenance machinery and equipment.

Description

Technical Field

[0001] This application relates to railway maintenance machinery and equipment, specifically to a roller brush type mechanical sand removal device and sand removal vehicle. Background Technology

[0002] Sand damage has become a major challenge for railway operation and maintenance in windy and sandy areas. It not only affects track geometry and reduces track quality, but also endangers train safety and reduces line operational capacity. Currently, sand damage is mainly handled manually. Due to limited personnel, level three and two sand damage are not addressed; instead, trains are only slowed down based on experience and inspection findings. Cleaning is only carried out when level two sand damage is about to escalate to level one. Manual sand damage handling suffers from high labor intensity, harsh working conditions, and low efficiency.

[0003] To address the aforementioned issues, most domestic mechanized sand removal devices employ pneumatic conveying principles, using negative pressure suction to collect accumulated sand from the railway track bed. The collected sand is then separated by a dust collector. However, these devices are characterized by long train formations, complex operating mechanisms, high power requirements, and limited operational efficiency. Therefore, there is a need to design and develop a railway track bed sand removal vehicle with high operational efficiency and significant effectiveness. Summary of the Invention

[0004] To address one of the aforementioned technical deficiencies, this application provides a roller brush type mechanical sand removal device and sand removal vehicle that can be used for routine maintenance sand removal operations as well as for handling situations where tracks are buried.

[0005] According to a first aspect of the embodiments of this application, a roller brush type mechanical sand removal device is provided, comprising: a mechanical sand removal assembly, wherein a sand pushing shell is provided at the lower end of the mechanical sand removal assembly; and a roller brush assembly is connected to the end of the sand pushing shell away from the mechanical sand removal assembly.

[0006] The roller brush assembly includes a roller brush housing, a roller brush shaft is disposed inside the roller brush housing, and bristles are disposed on the outer wall of the roller brush shaft;

[0007] Both ends of the roller brush shaft are connected to the output end of the drive motor;

[0008] The roller brush shaft and the roller brush housing are connected by a third bearing seat;

[0009] The rotation direction of the roller brush shaft matches the working direction of the sand removal device, realizing the bidirectional operation function of the entire sand removal device.

[0010] Preferably, the bottom of the sand-pushing housing is provided with two grooves, which are adapted to the track.

[0011] Preferably, the mechanical sand removal assembly includes a frame, with two wheels adapted to a track positioned below the frame; a drive shaft and a driven shaft are respectively arranged parallel to each other on the upper and lower parts of the frame, and a conveyor chain is laid between the drive shaft and the driven shaft; two drive sprockets are fitted on the drive shaft, and two driven sprockets are fitted on the driven wheels; the drive sprockets and driven sprockets are rotatably connected one-to-one by two parallel conveyor chains; scrapers parallel to the drive shaft are evenly laid between the two conveyor chains.

[0012] More preferably, both ends of the drive shaft are connected to the frame via tensioning components; both ends of the driven shaft are connected to the frame via first bearing seats.

[0013] More preferably, the tensioning component includes a second bearing housing; the second bearing housing is sleeved on the outer wall of the drive shaft, and the outer wall of the second bearing housing is connected to the frame by a tensioner.

[0014] According to a second aspect of the embodiments of this application, a roller brush type mechanical sand removal vehicle is provided, including a sand removal vehicle body, wherein a roller brush type mechanical sand removal device is provided on the sand removal vehicle body, and the roller brush type mechanical sand removal device is the roller brush type mechanical sand removal device described in any of the above contents.

[0015] Preferably, a bearing is provided on the top of the mechanical sand removal assembly, and the bearing is sleeved on the middle of the connecting rod provided on the sand removal vehicle body; the connecting rod is arranged parallel to the sleeper; and a second hydraulic cylinder is provided between the middle of both sides of the mechanical sand removal assembly and the sand removal vehicle body.

[0016] Preferably, the roller brush assembly includes a roller brush housing, and a roller brush shaft is disposed inside the roller brush housing; the roller brush shaft is connected to the roller brush housing via a third bearing seat; the outer wall of the third bearing seat is connected to the roller brush housing via a third hydraulic cylinder.

[0017] The roller brush assembly and mechanical sand removal assembly provided in this application embodiment balance sand removal efficiency and effectiveness. When working alone, the mechanical sand removal assembly can handle situations where track sleepers are buried, enabling emergency track reopening. When used in conjunction with the roller brush assembly, it can also be used for routine maintenance sand removal operations, leaving less residual sand and demonstrating strong applicability.

[0018] The roller brush type mechanical sand removal device can handle sand damage to railway lines in windy and sandy areas, replacing the current manual sand removal operations. This saves significant manpower, reduces labor intensity, and improves operational efficiency. Compared to existing technologies that use negative pressure suction, mechanical sand removal devices result in shorter train formations, greater flexibility in use, lower power requirements, and higher sand removal efficiency. Attached Figure Description

[0019] 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:

[0020] Figure 1 This is a schematic diagram of the structure of a roller brush type mechanical sand removal device provided in an embodiment of this application;

[0021] Figure 2 A schematic diagram of the mechanical sand removal component of a roller brush type mechanical sand removal device provided in this application embodiment;

[0022] Figure 3 A schematic diagram of the structure of a roller brush assembly of a roller brush type mechanical sand removal device provided in an embodiment of this application;

[0023] In the diagram: 10 is the mechanical sand removal assembly, 20 is the roller brush assembly, 30 is the bearing, 101 is the sand pushing housing, 102 is the frame, 103 is the traveling wheel, 104 is the drive shaft, 105 is the driven shaft, 106 is the scraper, 201 is the roller brush housing, 202 is the roller brush shaft, 203 is the drive motor, 204 is the third bearing seat, and 1011 is the groove. Detailed Implementation

[0024] 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.

[0025] In the process of developing this application, the inventors discovered that providing a roller brush type mechanical sand removal device and sand removal vehicle that can be used for routine maintenance sand removal operations as well as for handling situations where tracks are buried is a problem that urgently needs to be solved.

[0026] Figure 1 This is a schematic diagram of the structure of a roller brush type mechanical sand removal device provided in an embodiment of this application; Figure 2 This application provides a schematic diagram of the structure of a mechanical sand removal component in a roller brush type mechanical sand removal device; as shown. Figure 1 and Figure 2 As shown, to address the aforementioned problems, this application provides a roller brush type mechanical sand removal device, including: a mechanical sand removal assembly 10, with a sand-pushing housing 101 at its lower end; the bottom of the sand-pushing housing 101 has two grooves 1011, which are adapted to the track. The mechanical sand removal assembly uses the sand-pushing housing to transport the accumulated sand in the track and near both sides of the track to the sand collection component of the sand removal vehicle for unified processing.

[0027] A roller brush assembly 20 is detachably connected to one end of the sand-pushing housing 101 away from the mechanical sand removal component 10. The roller brush assembly sweeps the accumulated sand on the track, allowing the accumulated sand to easily pass through the sand-pushing housing and enter the scraper conveyor, resulting in more thorough sand removal and better cleaning effect.

[0028] The roller brush type mechanical sand removal device provided in this application embodiment can handle sand damage to railway lines in windy and sandy areas. It can replace the current sand removal operation, which is mainly based on manual handling, saving a lot of manpower, reducing labor intensity, and improving work efficiency. Compared with the negative pressure suction method in the prior art, the mechanical sand removal component results in shorter train formations, more flexible use, lower power requirements, and higher sand removal efficiency.

[0029] By combining a roller brush assembly and a mechanical sand removal assembly, both efficiency and effectiveness in sand removal operations are achieved. The mechanical sand removal assembly, working alone, can handle situations where track sleepers are buried, enabling emergency track reopening. When used in conjunction with the roller brush assembly, it can also be used for routine maintenance sand removal, leaving minimal residual sand and demonstrating strong applicability. This effectively prevents sand accumulation from damaging the tracks, ensuring the quality of the railway line and the safety of train operations.

[0030] Furthermore, the mechanical sand removal assembly 10 includes a frame 102, with two wheels 103 adapted to the track located below the frame 102. The two wheels are symmetrically arranged below the frame, and the wheels guide and prevent derailment, allowing the mechanical sand removal assembly to roll smoothly on the track, thereby removing the accumulated sand in the track.

[0031] The upper part of the frame 102 has a drive shaft 104, and the lower part of the frame 102 has a driven shaft 105 arranged parallel to the drive shaft 104.

[0032] A conveyor chain is laid between the drive shaft 104 and the driven shaft 105.

[0033] Two drive sprockets are mounted on the drive shaft 104, and two driven sprockets are mounted on the driven wheel 105. The drive sprockets and driven sprockets are connected one-to-one by two parallel conveyor chains. Scrapers 106 parallel to the drive shaft 104 are evenly laid between the two conveyor chains.

[0034] The conveyor chain transports the accumulated sand gathered on the sand-pushing shell, transferring the sand from the track to the sand collection unit of the sand removal vehicle for unified processing. The drive sprocket on the drive shaft drives the driven sprocket to rotate synchronously via the conveyor chain, thus realizing the conveying operation. The scraper limits the sand transported on the conveyor chain, preventing sand from scattering and causing incomplete removal.

[0035] Both ends of the driven shaft 105 are connected to the frame 102 through the first bearing seat.

[0036] Both ends of the drive shaft 104 are connected to the frame 102 through tensioning components; the tensioning components include a second bearing seat; the second bearing seat is sleeved on the outer wall of the drive shaft 104, and the outer wall of the second bearing seat is connected to the frame 102 through a tensioner.

[0037] The tensioner controls the two second bearing seats to move closer to or further away from the two first bearing seats, thereby causing the drive shaft mounted on the second bearing seats to move closer to or further away from the driven shaft. This adjusts the distance between the drive shaft and the driven shaft, thus regulating the tension of the conveyor chain.

[0038] Specifically, one end of the drive shaft is connected to the drive end of the drive motor after passing through the second bearing housing. The drive motor provides power to the drive shaft.

[0039] Figure 3 This application provides a schematic diagram of the structure of a roller brush assembly in a roller brush type mechanical sand removal device; as shown in the embodiment. Figure 3 As shown, the roller brush assembly further includes a roller brush housing 201, which includes two side plates and a top arc-shaped cover plate. The inner wall of the roller brush housing is in close contact with the outer wall of the sand pushing housing, and the connection or separation of the roller brush housing and the sand pushing housing can be easily achieved by raising and lowering the roller brush housing.

[0040] The roller brush housing 201 and the sand-pushing housing 101 are detachably connected. At least one protrusion is provided on the side of the roller brush housing 201 near the sand-pushing housing 101. The side of the sand-pushing housing 101 near the roller brush housing 201 has corresponding numbers and positions of snap-fit ​​parts. The protrusions engage with the snap-fit ​​parts. Besides snap-fitting, the roller brush housing 201 and the sand-pushing housing 101 can also be detachably connected via bolts, magnetic connections, or other means.

[0041] When the roller brush assembly is not in use, simply detach the protrusion on the roller brush housing from the snap-fit ​​part on the sand-pushing housing to separate the roller brush assembly from the mechanical sand removal assembly. When the roller brush assembly is needed, snap the protrusion and snap-fit ​​part together. The snap-fit ​​method is simple to connect and disconnect, allowing for easy assembly and disassembly of the roller brush assembly onto the mechanical sand removal assembly.

[0042] The roller brush housing 201 houses a roller brush shaft 202, whose outer wall is covered with bristles. Both ends of the roller brush shaft 202 are connected to the output of the drive motor 203. The roller brush shaft 202 is connected to the roller brush housing 201 via a third bearing seat 204. The rotation direction of the roller brush shaft 202 matches the working direction of the sand removal device, enabling the entire sand removal device to operate in both directions. Specifically, when the sand removal device operates in the first direction, the roller brush shaft 202 rotates clockwise; when the sand removal device operates in the second direction, the roller brush shaft 202 rotates counterclockwise to match the sand removal device.

[0043] The bristles can sweep away the accumulated sand on the track, allowing the sand to easily pass through the sand-pushing housing and enter the conveyor chain, resulting in more thorough sand removal and better cleaning effect.

[0044] This application also provides a roller brush type mechanical sand removal vehicle, including a sand removal vehicle body, on which a roller brush type mechanical sand removal device is provided, wherein the roller brush type mechanical sand removal device is any of the roller brush type mechanical sand removal devices described above.

[0045] Specifically, in addition to the sand truck itself being equipped with a connection platform.

[0046] More specifically, it is connected to the top of the mechanical sand removal assembly via a connecting platform. The connecting platform is connected to the sand collection components, electrical system, hydraulic system, and power transmission system.

[0047] The sand collection unit gathers the accumulated sand collected and transported by the roller brush mechanical sand removal device, and then discharges the sand off the track through a conveying system set on the connecting platform. The electrical system provides electrical control for the entire sand removal vehicle, the hydraulic system provides hydraulic power to the cylinders in the entire sand removal vehicle, and the power transmission system provides power to the entire sand removal vehicle.

[0048] Specifically, the mechanical sand removal component 10 is located at the front end of the sand removal vehicle body.

[0049] Furthermore, a bearing 30 is provided on the top of the mechanical sand removal assembly 10, and the bearing 30 is sleeved on the middle of the connecting rod provided on the sand removal vehicle body; the connecting rod is arranged parallel to the sleeper; a second hydraulic cylinder is provided between the middle of both sides of the mechanical sand removal assembly 10 and the sand removal vehicle body.

[0050] The mechanical sand removal component extends from the front end of the sand removal vehicle body through the bearing and the second hydraulic cylinder and is placed on the track where sand removal is needed. It can handle the situation where the track sleepers are buried, realize the emergency opening of the line, and can also be used for daily maintenance sand removal operations, making it highly applicable.

[0051] The roller brush assembly 20 includes a roller brush housing 201, and a roller brush shaft 202 is disposed inside the roller brush housing 201; the roller brush shaft 202 and the roller brush housing 201 are connected by a third bearing seat 204; the outer wall of the third bearing seat 204 is connected to the roller brush housing 201 by a third hydraulic cylinder.

[0052] Specifically, the roller brush housing is also provided with a bushing, and a guide rod connected to the sand removal vehicle body passes through the bushing. The guide rod extends in the same direction as the extension and retraction of the third hydraulic cylinder, causing the roller brush assembly to move up and down relative to the sand removal vehicle body along the direction of the guide rod.

[0053] More specifically, the guide rod is set at a certain angle to the vertical.

[0054] Because the roller brush assembly and the mechanical sand removal assembly are detachably connected, when the roller brush assembly is not needed, the third bearing seat, roller brush shaft, and roller brush housing can be lifted together using the third hydraulic cylinder, so as not to affect the operation of the mechanical sand removal assembly. Simultaneously, the distance between the roller brush assembly and the track can be adjusted using the third hydraulic cylinder, allowing the height of the roller brush assembly to be adjusted according to different sand thicknesses, effectively treating sand of varying thicknesses and demonstrating strong applicability.

[0055] Working principle:

[0056] During routine maintenance and sand removal of the tracks, the roller brush mechanical sand removal device uses bearings and a second hydraulic cylinder to lift and place the mechanical sand removal component close to the track requiring sand removal. Simultaneously, the roller brush component is positioned close to the track via a guide rod and a third hydraulic cylinder. The distance between the roller brush component and the track is adjusted by the third hydraulic cylinder to treat sand of varying thicknesses. At this point, the mechanical sand removal component and the roller brush component are connected, and the two traveling wheels are adapted to the track, allowing them to roll and guide. During operation, a drive motor connected to the roller brush shaft rotates the shaft, sweeping away the accumulated sand. A drive motor on the drive shaft also rotates, driving the driven shaft and conveyor chain to transport the swept sand and sand from the track to the sand collection unit of the sand removal vehicle for unified processing, thus achieving routine maintenance and sand removal of the tracks.

[0057] When there is a large amount of sand on the track, burying it, the roller brush assembly and the mechanical sand removal assembly can be separated. The mechanical sand removal assembly can be placed close to the track that needs sand removal by lifting the bearing and the second hydraulic cylinder. At this time, the mechanical sand removal assembly works alone and can quickly remove the sand on the track, exposing the track and enabling the emergency opening of the line.

[0058] In the description of this application, it should be understood that the terms "middle", "length", "thickness", "upper", "lower", "front", "rear", "vertical", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between 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.

[0061] 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.

[0062] 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 roller brush type mechanical sand removal device, characterized in that: include: Mechanical sand removal assembly (10), wherein a sand pushing shell (101) is provided at the lower end of the mechanical sand removal assembly (10); The end of the sand-pushing housing (101) away from the mechanical sand-removing assembly (10) is connected to a roller brush assembly (20); The roller brush assembly (20) includes a roller brush housing (201), a roller brush shaft (202) is provided inside the roller brush housing (201), and brush bristles are provided on the outer wall of the roller brush shaft (202); Both ends of the roller brush shaft (202) are connected to the output end of the drive motor (203); The roller brush shaft (202) and the roller brush housing (201) are connected by a third bearing seat (204); The rotation direction of the roller brush shaft (202) is matched with the working direction of the sand removal device, so as to realize the bidirectional operation function of the entire sand removal device.

2. The roller brush type mechanical sand removal device according to claim 1, characterized in that: The bottom of the sand-pushing housing (101) is provided with two grooves (1011), which are adapted to the track.

3. The roller brush type mechanical sand removal device according to claim 1, characterized in that: The mechanical sand removal assembly (10) includes a frame (102), and two wheels (103) adapted to the track are provided below the frame (102); The upper and lower parts of the frame (102) are respectively provided with a drive shaft (104) and a driven shaft (105) in parallel, and a conveyor chain is laid between the drive shaft (104) and the driven shaft (105); Two drive sprockets are fitted on the drive shaft (104), and two driven sprockets are fitted on the driven shaft (105); The drive sprocket and the driven sprocket are connected one-to-one by two parallel conveyor chains. Scrapers (106) parallel to the drive shaft (104) are evenly laid between the two conveyor chains.

4. The roller brush type mechanical sand removal device according to claim 3, characterized in that: Both ends of the drive shaft (104) are connected to the frame (102) via tensioning components; Both ends of the driven shaft (105) are connected to the frame (102) through the first bearing seat.

5. The roller brush type mechanical sand removal device according to claim 4, characterized in that: The tensioning component includes a second bearing housing; The second bearing housing is sleeved on the outer wall of the drive shaft (104), and the outer wall of the second bearing housing is connected to the frame (102) by a tensioner.

6. A roller brush type mechanical sand removal vehicle, characterized in that: The device includes a sand removal vehicle body, on which a roller brush type mechanical sand removal device is provided, wherein the roller brush type mechanical sand removal device is any one of claims 1 to 5.

7. The roller brush type mechanical sand removal vehicle according to claim 6, characterized in that: The top of the mechanical sand removal assembly (10) is provided with a bearing (30), which is sleeved on the middle of the connecting rod provided on the body of the sand removal vehicle; the connecting rod is arranged parallel to the sleeper. A second hydraulic cylinder is provided between the middle of both sides of the mechanical sand removal assembly (10) and the body of the sand removal vehicle.

8. The roller brush type mechanical sand removal vehicle according to claim 7, characterized in that: The roller brush assembly (20) includes a roller brush housing (201), and a roller brush shaft (202) is disposed inside the roller brush housing (201); The roller brush shaft (202) and the roller brush housing (201) are connected by a third bearing seat (204); The outer wall of the third bearing housing (204) is connected to the roller brush housing (201) via a third hydraulic cylinder.

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