Height-adjustable dust collection device suitable for ballastless track construction

Abstract

The utility model discloses a height adjustable dust collection device suitable for ballastless track construction, which comprises a lifting seat, a lifting frame, a dust collection component and an auxiliary walking component, a guide rail is mounted on the lifting seat, the lifting frame consists of a first mounting frame and a second mounting frame, and a sliding block is arranged on the first mounting frame; the auxiliary walking component comprises a supporting frame and a lifting type roller assembly, the dust collection pulling head is installed on the supporting frame through a fixing strip, an air suction opening of the dust collection pulling head is communicated with the air outlet, and the air outlet of the dust collection pulling head is communicated with the dust collection pipe. The height-adjustable rollers are arranged at the two ends of the supporting frame at the bottom, the walking requirement of a curve track is met, the guide rails and the sliding blocks are arranged between the lifting base and the lifting frame, the rollers serve as fulcrums in the moving process, the walking requirement when the track bed surface has height difference is met, an existing manual operation mode is replaced, and the working efficiency is improved. And the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of ballastless track construction equipment, and in particular to a height-adjustable dust collection device suitable for ballastless track construction. Background Technology

[0002] Ballastless track refers to a track structure that uses a monolithic foundation of concrete, asphalt mixture, or similar materials instead of loose gravel ballast. Also known as ballastless track, it is increasingly used in track construction. Compared to ballasted track, ballastless track has better overall rigidity due to the use of concrete. It eliminates the bumps and noise caused by gaps between the rails and ballast, resulting in a smoother train ride and reduced vehicle wear. Ballastless track also exhibits excellent resistance to settlement and deformation, high frost resistance, and good stability, reducing later maintenance costs. The monolithic ballast bed prevents track displacement and eliminates the presence of any stones, preventing ballast splashing. This significantly improves the safety of high-speed train operation. Therefore, ballastless track avoids ballast splashing, offers superior smoothness, stability, long service life, durability, and requires less maintenance. Trains can operate at speeds exceeding 350 km / h.

[0003] In the later stages of ballastless track construction, after rail welding is completed, the rails are ground. During this grinding process, the resulting iron filings and other impurities cannot be directly recycled by existing track grinding vehicles. Currently, manual cleaning is the primary method, which is time-consuming, labor-intensive, slow, and ineffective, requiring repeated cleaning. If we consider replacing manual labor with mechanized operations, the on-site conditions for mechanized operations must be considered. Ballastless track beds often have varying heights or inclinations, such as inconsistent inner and outer track heights on curved tracks, uneven track surfaces, or height differences between track bed connections. If mechanized operations are to be performed on the track bed, it necessitates walking on the track itself. Existing railway dust collection equipment cannot meet the construction conditions of ballastless track; therefore, a height-adjustable dust collection device suitable for ballastless track construction is urgently needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a height-adjustable dust collection device suitable for ballastless track construction, which can eliminate the manual cleaning operation, meet the usage requirements of the height difference when walking on ballastless track, and improve the work efficiency.

[0005] The purpose of this utility model is achieved through the following technical solution: a height-adjustable dust collection device suitable for ballastless track construction, including a lifting seat, a lifting frame, a dust collection component and an auxiliary walking component. The lifting seat is fixedly installed on a construction walking trolley. A guide rail for lifting the lifting frame is installed on the lifting seat. The lifting frame consists of a first mounting frame and a second mounting frame connected to the first mounting frame. A slider that is slidably installed on the guide rail is provided on the first mounting frame.

[0006] The vacuuming component includes a vacuuming pipe, a vacuuming nozzle, and an air duct cover. The vacuuming pipe is fixed on a first mounting bracket by a pipe clamp, and the air duct cover is mounted on a second mounting bracket. The air duct cover is provided with multiple air inlets and one air outlet.

[0007] The auxiliary walking component includes a support frame and lifting roller assemblies mounted on both ends of the support frame. The vacuum cleaner head is mounted on the support frame by a fixing strip. The air intake of the vacuum cleaner head is connected to the air outlet, and the air outlet of the vacuum cleaner head is connected to the vacuum pipe.

[0008] Preferably, the first mounting bracket and the second mounting bracket are arranged perpendicular to each other. This perpendicular arrangement facilitates installation and processing, and also makes it easier to position other components. A reinforcing plate is also provided between the first mounting bracket and the second mounting bracket, which further improves the stability of the entire structure.

[0009] The number of guide rails is at least one. Each guide rail is provided with a groove for the slider to slide. The groove is a T-groove, dovetail groove, or V-groove, and the shape of the slider matches the groove. It should be noted that the positions of the guide rail and the slider can be interchanged, i.e., as long as there is a linear sliding pair between the lifting seat and the lifting frame. The groove can be a T-groove, dovetail groove, V-groove, or other type of groove with a limiting function, as long as the groove can limit the slider (the groove has limiting surfaces on both sides). When the slider is placed in the groove, it only moves in the vertical direction, effectively preventing it from falling off during sliding. Simultaneously, the lifting seat is provided with limiting blocks to restrict the slider's sliding stroke, and each guide rail has limiting blocks on both its upper and lower sides. The limiting blocks effectively limit the slider's stroke, preventing it from falling off the guide rail (vertically).

[0010] Preferably, there are two air inlets. Since this design operates on the ballastless track surface (for absorbing iron filings and impurities located between the two rails), the air inlets should be directly facing the track surface that needs to be vacuumed. The number of air inlets can be adjusted according to the actual working conditions.

[0011] Preferably, mounting plates are provided at both ends of the support frame. The fixing strip secures both ends of the suction head by pressing it against the mounting plate. The lifting roller assembly consists of a roller frame, a lifting screw, rollers, and a connecting frame. The connecting frame is mounted on the mounting plate, and the rollers are mounted on the bottom of the roller frame. The connecting frame has threaded holes, through which the lifting screw passes and connects to the roller frame. The height of the rollers is adjusted by the lifting screw. The lifting roller assemblies at both ends of the support frame can be operated independently to adjust to different heights, meeting the operational needs of the construction trolley when encountering curved tracks where the track heights on both sides are inconsistent.

[0012] In this design, the auxiliary walking component and the vacuum nozzle are connected together, and the vacuum pipe is fixed to the lifting frame. The rollers act as fulcrums on the track bed, driving the duct cover and lifting frame to slide up and down on the guide rails. The roller height adjustment ensures a 3-5cm gap between the duct cover and the track bed surface. Therefore, the lifting roller assembly of the auxiliary walking component can meet the height difference adjustment requirements between the two tracks, ensuring the rollers always move on the track bed surface, and also accommodate uneven track bed surfaces (where there are height differences). After height adjustment, the rollers act as fulcrums on the track bed surface, adaptively adjusting to allow the duct cover to slide along the track with the lifting frame, always maintaining a 3-5cm gap between the duct cover and the track bed surface. With a 1 cm gap, before starting the construction trolley, adjust the height of the rollers using the lifting screw. After adjusting the height, place the construction trolley on the track bed. The air duct cover and lifting frame slide in the groove via sliders, allowing the vacuum head to adaptively adjust to uneven track surfaces. The main unit of the vacuum equipment is also installed on the construction trolley. The vacuum pipe of this device is connected to the air inlet of the vacuum equipment. The auxiliary walking components follow the construction trolley on the track bed. Start the construction trolley and vacuum equipment. The construction trolley travels on the track bed, and the lifting seat of this device moves along the track direction with the construction trolley. The vacuum equipment can be started while the construction trolley is moving to perform normal vacuuming operations. When encountering curves or track bed surfaces with height differences, stop the construction trolley and vacuum equipment, and then adjust the height of the auxiliary walking components (rotate the lifting screw). After adjustment, start the construction trolley and vacuum equipment. The rollers act as fulcrums, and the air duct cover and lifting frame slide in the groove with the sliders to perform subsequent vacuuming operations.

[0013] The beneficial effects of this utility model are: (1) Adjustable rollers are set at both ends of the support frame at the bottom to meet the walking requirements of the curved track. Guide rails and sliders are set between the lifting seat and the lifting frame. During the movement, the rollers are used as fulcrums to allow the lifting frame to drive the dust suction head to make adaptive height adjustments, which meets the walking requirements when there is a height difference in the track bed surface and improves the stability of the entire device; (2) The dust suction pipe is installed on the lifting frame, and the air duct cover is installed according to the track bed. When the dust suction equipment is started, the iron filings on both sides of the track can be directly sucked away, replacing the existing manual operation method and greatly improving the work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the auxiliary walking component of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged schematic diagram of region A in the middle;

[0017] Figure 4 This is a schematic diagram showing the installation position of the slider groove of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the air duct cover of this utility model.

[0019] In the diagram, 1-lifting seat, 2-lifting frame, 3-dust suction component, 4-auxiliary walking component, 101-guide rail, 102-limiting block, 201-first mounting bracket, 202-second mounting bracket, 203-slider, 204-slide groove, 205-reinforcing plate, 301-dust suction pipe, 302-dust suction nozzle, 303-air duct cover, 3031-air inlet, 3032-air outlet, 304-fixing strip, 401-support frame, 402-mounting plate, 403-roller frame, 404-lifting screw, 405-roller, 406-connecting frame, 407-threaded hole. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figures 1-4As shown, a height-adjustable dust collection device suitable for ballastless track construction includes a lifting seat 1, a lifting frame 2, a dust collection component 3, and an auxiliary walking component 4. The lifting seat 1 is fixedly installed on a construction walking trolley. A guide rail 101 for lifting the lifting frame 2 is installed on the lifting seat 1. The lifting frame 2 is composed of a first mounting frame 201 and a second mounting frame 202 connected to the first mounting frame 201. A slider 203 is provided on the first mounting frame 201 and slidably installed on the guide rail 101.

[0022] The vacuuming component 3 includes a vacuum pipe 301, a vacuum nozzle 302, and an air duct cover 303. The vacuum pipe 301 is fixed to the first mounting bracket 201 by a pipe clamp 304, and the air duct cover 303 is mounted on the second mounting bracket 202. Figure 5 As shown, the air duct cover 303 is provided with two air inlets 3031 and one air outlet 3032;

[0023] The auxiliary walking component 4 includes a support frame 401 and lifting roller assemblies installed at both ends of the support frame 401. The vacuum cleaner head 302 is installed on the support frame 401 by a fixing strip 304. The air intake of the vacuum cleaner head 302 is connected to the air outlet 3032, and the air outlet of the vacuum cleaner head 302 is connected to the vacuum pipe 301.

[0024] The first mounting bracket 201 and the second mounting bracket 202 are arranged perpendicularly to each other, and a reinforcing plate 205 is provided between the first mounting bracket 201 and the second mounting bracket 202. The lifting seat 1 is provided with a limiting block 102 for limiting the sliding stroke of the slider 203. Each guide rail 101 has a limiting block 102 on both its upper and lower sides, and the stroke distance formed by the two limiting blocks 102 reaches 200mm. There are two guide rails 101, and each guide rail 101 is provided with a sliding groove 204 for the slider 203 to slide. The sliding groove 204 is a V-shaped groove, and the shape of the slider 203 matches the sliding groove 204.

[0025] The number of air inlets 3031 is two, which can separate the airflow of the left and right tracks during use, further improving work efficiency.

[0026] Both ends of the support frame 401 are provided with mounting plates 402, and both ends of the fixing strip 304 are respectively fixed to the corresponding mounting plates 402. The lifting roller assembly consists of a roller frame 403, a lifting screw 404, a roller 405, and a connecting frame 406. The connecting frame 406 is mounted on the mounting plate 402, the roller 405 is mounted on the bottom of the roller frame 403, and the connecting frame 406 is provided with a threaded hole 407. The lifting screw 404 passes through the threaded hole 407 and is connected to the roller frame 403. In this embodiment, since the wall of the connecting frame 406 is relatively thin, a fixing nut is welded onto the connecting frame 406, and the internal threaded hole of the nut is used as the threaded hole 407. A corresponding through hole is provided on the connecting frame 406. If the thickness of the connecting frame 406 is sufficient, the threaded hole can be directly drilled in the connecting frame 406.

[0027] During operation, rollers 405 serve as auxiliary traveling wheels, driven by a construction trolley. The construction trolley travels on the track, while rollers 405 travel on the track bed surface. The lifting screws 404 simultaneously or independently adjust the height of the rollers 405 on both sides of the support frame 401 to meet the travel requirements when there is a height difference on the curved track, ensuring that the rollers 405 on both sides always travel on the track bed surface. At the same time, the height-adjusted rollers 405 also serve as support points, driving the slider 203 to make adaptive height adjustments on the guide rail 101 to meet the travel requirements when the track bed surface is uneven (height difference).

[0028] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A height-adjustable dust collection device suitable for ballastless track construction, characterized in that: It includes a lifting seat (1), a lifting frame (2), a dust collection component (3), and an auxiliary walking component (4). The lifting seat (1) is fixedly installed on the construction walking trolley. The lifting seat (1) is equipped with a guide rail (101) for lifting the lifting frame (2) up and down. The lifting frame (2) is composed of a first mounting frame (201) and a second mounting frame (202) connected to the first mounting frame (201). The first mounting frame (201) is provided with a slider (203) that is slidably installed on the guide rail (101). The vacuuming component (3) includes a vacuum pipe (301), a vacuum nozzle (302), and an air duct cover (303). The vacuum pipe (301) is fixed on the first mounting bracket (201) by a pipe clamp. The air duct cover (303) is mounted on the second mounting bracket (202). The air duct cover (303) is provided with multiple air inlets (3031) and one air outlet (3032). The auxiliary walking component (4) includes a support frame (401) and lifting roller assemblies installed at both ends of the support frame (401). The vacuum cleaner head (302) is installed on the support frame (401) by a fixing strip (304). The air inlet of the vacuum cleaner head (302) is connected to the air outlet (3032), and the air outlet of the vacuum cleaner head (302) is connected to the vacuum pipe (301).

2. The height-adjustable dust collection device for ballastless track construction according to claim 1, characterized in that: The first mounting bracket (201) and the second mounting bracket (202) are arranged perpendicular to each other.

3. The height-adjustable dust collection device for ballastless track construction according to claim 1, characterized in that: The number of guide rails (101) is at least one.

4. A height-adjustable dust collection device for ballastless track construction according to any one of claims 1 or 3, characterized in that: The guide rail (101) is provided with a groove (204) for sliding the slider (203).

5. A height-adjustable dust collection device for ballastless track construction according to claim 4, characterized in that: The groove (204) is a T-groove, dovetail groove or V-groove, and the shape of the slider (203) matches the groove (204).

6. A height-adjustable dust collection device for ballastless track construction according to claim 1, characterized in that: The number of air inlets (3031) is two.

7. A height-adjustable dust collection device for ballastless track construction according to claim 1, characterized in that: The support frame (401) is provided with mounting plates (402) at both ends, and the two ends of the fixing strip (304) are respectively fixed on the corresponding mounting plates (402).

8. A height-adjustable dust collection device for ballastless track construction according to claim 7, characterized in that: The lifting roller assembly consists of a roller frame (403), a lifting screw (404), a roller (405), and a connecting frame (406). The connecting frame (406) is mounted on the mounting plate (402), the roller (405) is mounted on the bottom of the roller frame (403), and the connecting frame (406) is provided with a threaded hole (407). The lifting screw (404) passes through the threaded hole (407) and is connected to the roller frame (403).

9. A height-adjustable dust collection device for ballastless track construction according to claim 1, characterized in that: The lifting seat (1) is provided with a limiting block (102) for limiting the sliding stroke of the slider (203).

10. A height-adjustable dust collection device for ballastless track construction according to claim 1 or 2, characterized in that: A reinforcing plate (205) is also provided between the first mounting bracket (201) and the second mounting bracket (202).

Images