Mobile maintenance device for urban railway tracks

Abstract

The present invention relates to the field of railway maintenance equipment and discloses a mobile maintenance device for urban railway tracks, comprising a track trolley, wherein two guide rods are fixedly installed on one side of the track trolley, a fixed frame is fixedly installed in the middle of the guide rods, a first movable frame is movably installed on the outer diameter of the guide rod away from the track trolley, grinding blocks are fixedly installed on both sides of the bottom end of the first movable frame via two spring rods, both ends of the transmission shaft extend to the outside of the fixed frame and are fixedly installed with a flywheel, a connecting rod is movably installed on one side of the outer end of the flywheel, and the ends of the connecting rods are movably installed in the middle of the front and rear sides of the first movable frame, and a second movable frame is movably installed on the outer diameter of the guide rod close to the track trolley. The present invention integrates grinding, cleaning, and painting, can efficiently remove dirt and rust, clean dirt, and evenly spray paint, realizing an integrated maintenance process, greatly improving maintenance efficiency and quality, and extending the life of the track.

Description

Technical Field

[0001] The present invention relates to the field of railway maintenance equipment, in particular to a mobile maintenance device for urban railway tracks. Background Art

[0002] With the rapid development of urban rail transit, the maintenance of urban railway tracks, as critical infrastructure for urban transportation, has become increasingly important. Urban railway tracks are exposed to the elements for long periods of time, enduring frequent train traffic, rain erosion, dust and dirt accumulation, and various complex climatic conditions. These issues are highly susceptible to wear, rust, and dirt accumulation on the track surface. These problems not only affect the smoothness and safety of train travel, but can also shorten the track's service life and increase maintenance costs.

[0003] Currently, urban railway track maintenance faces the following major challenges: First, some maintenance work relies on manual labor. For example, manual grinding is extremely inefficient for removing stubborn dirt and rust from track surfaces. This not only consumes significant manpower and time, but also, due to variations in manual operation, it's difficult to ensure uniformity and comprehensiveness, resulting in inconsistent track maintenance quality. Furthermore, manual cleaning of track surface dirt fails to completely remove grinding debris and stubborn stains, leaving residual dirt and compromising subsequent maintenance efforts.

[0004] On the other hand, some existing track maintenance equipment has relatively limited functionality. Common maintenance equipment is often only capable of completing a single task, such as simple grinding or painting equipment. In actual maintenance, multiple devices must work together, which not only increases equipment investment costs but also complicates the connection and scheduling between different devices, resulting in low maintenance efficiency. Furthermore, traditional painting equipment struggles to ensure uniformity in the paint application process, making it prone to uneven paint layer thickness and localized leaks, making it impossible to effectively enhance the track's corrosion and rust resistance.

[0005] In view of the problems existing in the above-mentioned prior art, it is very necessary to research and design a new type of mobile maintenance device for urban railway tracks to overcome the problems existing in the prior art. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a mobile maintenance device for urban railway tracks, resolving the issues of low efficiency, poor quality, and high costs associated with urban railway track maintenance. This device efficiently polishes and removes rust, powerfully sweeps dirt, and evenly sprays paint for corrosion protection, integrating multiple functions into one device, reducing equipment investment and process connection time.

[0007] The technical means adopted in the present invention are as follows:

[0008] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0009] Furthermore, a first motor is fixedly mounted on the inner side wall of the fixed frame, a main shaft is fixedly mounted on the driving end of the first motor, a worm is fixedly mounted on the middle outer diameter of the main shaft, a worm wheel is fixedly mounted on the middle outer diameter of the transmission shaft, and the inner ends of the worm wheel and the worm wheel are meshed and connected.

[0010] Furthermore, the end of the second movable frame away from the rail trolley is connected to one end of the fixed frame through a plurality of return springs, the end of the main shaft extends to the outside of the fixed frame and is fixedly installed with a first chuck, and the middle part of the end of the second movable frame away from the rail trolley is fixedly installed with a second chuck, and the inner ends of the first chuck and the second chuck are fixedly installed with a plurality of hemispherical protrusions, and the two groups of hemispherical protrusions are staggered with each other.

[0011] Furthermore, a rotating rod is movably installed in the middle of the bottom wall of the fixed box, a second motor is fixedly installed on one side of the inner bottom of the fixed box, a driving bevel gear is fixedly installed on the driving end of the second motor, a driven bevel gear is fixedly installed on the lower outer diameter of the rotating rod, and the driven bevel gear is meshed and connected with the inner end of the driving bevel gear.

[0012] Furthermore, a driving wheel is fixedly mounted on the outer diameter of the middle portion of the rotating rod, and a driven wheel is fixedly mounted on the top end of each of the short shafts. The outer diameters of the driving wheel and the driven wheel are connected via a synchronous belt.

[0013] Furthermore, a liquid flow tank is fixedly installed on one side of the inner top of the fixed box, a sleeve is movably installed inside the liquid flow tank, and a piston is fixedly installed on the top end of the sleeve.

[0014] Furthermore, the top end of the rotating rod extends to the inside of the liquid tank and is fixedly installed with a column, a bidirectional spiral groove is opened on the outer diameter of the column, a round head pin is fixedly installed on one side of the inner top of the sleeve and the end of the round head pin is movably arranged inside the bidirectional spiral groove.

[0015] Furthermore, a paint liquid storage chamber is fixedly installed on the top of the rail trolley, a liquid inlet pipe is fixedly installed on one side of the bottom of the paint liquid storage chamber, and the end of the liquid inlet pipe extends to one side of the inner top of the liquid flow tank, a liquid discharge pipe is fixedly installed on the other side of the inner top of the liquid flow tank, two branch pipes are fixedly installed on the end of the liquid discharge pipe, and the ends of the branch pipes extend to the interior of the corresponding side of the liquid spray tank, and a one-way rubber valve is fixedly installed inside the liquid inlet pipe and the liquid discharge pipe.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention provides a mobile maintenance device for urban railway tracks. A first motor drives a main shaft, which, through a worm gear transmission, causes the drive shaft to rotate a flywheel. This in turn uses a connecting rod to drive a first movable frame to perform reciprocating linear motion, allowing the grinding block to efficiently grind the railway track surface. This structural design can quickly remove stubborn dirt and rust from the track surface. Compared with traditional manual grinding, it greatly improves grinding efficiency, saves labor costs, and ensures uniformity and comprehensiveness of grinding, thereby improving the cleanliness of the track surface.

[0018] 2. The present invention provides a mobile maintenance device for urban railway tracks. The main shaft rotates to drive the first chuck to rotate, aligning the hemispherical protrusion of the second chuck. The return spring cooperates to cause the second movable frame to vibrate rapidly back and forth. The brush at the bottom of the device can effectively clean the original dirt on the track surface as well as the dirt and rust caused by grinding. The cleaning effect is significant, preventing residual dirt from affecting subsequent track maintenance work. The cleaning process is synchronized with the grinding process, improving the consistency and efficiency of the overall maintenance process.

[0019] 3. The present invention provides a mobile maintenance device for urban railway tracks. The second motor drives the active bevel gear, which drives the driven bevel gear to rotate the rotating rod. The rotating rod drives the short shaft and the cross brush plate to rotate at high speed through the active wheel and the synchronous belt. At the same time, the bidirectional spiral groove of the top column of the rotating rod drives the piston to move up and down in the liquid tank to achieve the suction and discharge of anti-corrosion and rust-removing paint. The paint liquid is broken into small liquid droplets under the action of the high-speed rotating cross brush plate, forming a paint liquid gas fluid that is firmly sprayed on the track surface. This painting method can ensure that the paint liquid evenly covers the track, enhances the anti-corrosion and anti-rust ability of the track, and extends the service life of the track. The painting process has a high degree of automation, which reduces the error and labor intensity of manual painting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the fixing frame of the present invention;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 Schematic diagram of the internal structure of the fixed box in the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 It is a front view of the fixed box in the present invention;

[0027] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0028] Figure 8 It is a front view of the present invention.

[0029] Among them, 1. Track trolley; 2. Guide rod; 3. Fixed frame; 4. First movable frame; 5. Spring rod; 6. Grinding block; 7. Transmission shaft; 8. Flywheel; 9. Connecting rod; 10. First motor; 11. Spindle; 12. Worm; 13. Worm gear; 14. Second movable frame; 15. Brush; 16. Return spring; 17. First chuck; 18. Second chuck; 19. Hemispherical protrusion; 20. Fixed box; 21. Spray tank; 2 2. Short shaft; 23. Cross brush plate; 24. Rotating rod; 25. Second motor; 26. Driving bevel gear; 27. Driven bevel gear; 28. Driving pulley; 29. ​​Driven pulley; 30. Synchronous belt; 31. Liquid trough; 32. Sleeve; 33. Piston; 34. Cylinder; 35. Bidirectional spiral groove; 36. Round head pin; 37. Paint spray liquid storage chamber; 38. Liquid inlet pipe; 39. Liquid discharge pipe; 40. Branch pipe; 41. One-way rubber valve. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0034] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0035] For ease of description, spatially relative terms such as "above," "above," "on the upper surface of," and "above" may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "on top of" another device or structure would then be positioned as "below" or "below" the other device or structure. Thus, the exemplary term "above" may include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] like Figure 1-8 As shown, the present invention provides a mobile maintenance device for urban railway tracks, such as Figure 1As shown, the trolley 1 includes a track trolley 1, which serves as a mobile carrier of the entire device and carries a series of subsequent maintenance components to run on the railway track. Two guide rods 2 are fixedly installed on one side of the trolley 1. The guide rods 2 play a key supporting and guiding role. A fixed frame 3 is fixedly installed in the middle of the guide rods 2. The fixed frame 3 is used to stabilize and position other important components. A first movable frame 4 is movably installed on the outer diameter of the side of the guide rod 2 away from the track trolley 1. The first movable frame 4 can move along the direction of the guide rod 2. The bottom end of the first movable frame 4 is connected to two movable frames on both sides. A spring rod 5 is fixedly installed with a grinding block 6. The spring rod 5 not only connects the first movable frame 4 and the grinding block 6, but also plays a buffering role in the grinding process to ensure that the grinding block 6 fits well with the track surface. The grinding block 6 is responsible for grinding the surface of the railway track in subsequent maintenance work. A transmission shaft 7 is movably installed in the middle of the fixed frame 3. The transmission shaft 7 can rotate flexibly in the fixed frame 3. Both ends of the transmission shaft 7 extend to the outside of the fixed frame 3 and are fixedly installed with a flywheel 8. When the transmission shaft 7 rotates, it can drive the flywheels on both sides. 8 rotates synchronously, and a connecting rod 9 is movably installed on one side of the outer end of the flywheel 8, and the ends of the connecting rod 9 are movably installed on the middle part of the front and rear sides of the first movable frame 4. This connection method allows the flywheel 8 to drive the first movable frame 4 to make reciprocating linear motion along the guide rod 2 through the connecting rod 9 when it rotates. A second movable frame 14 is movably installed on the outer diameter of the side of the guide rod 2 close to the track trolley 1. The second movable frame 14 can move on the guide rod 2. Brushes 15 are fixed on both sides of the bottom end of the second movable frame 14. The brushes 15 are used to clean the track surface. A fixed box 20 is fixedly installed on the other side of the vehicle 1. The fixed box 20 is used to accommodate and install components related to painting. Spray tanks 21 are fixedly installed on both sides of the bottom end of the fixed box 20. The spray tank 21 is the terminal component for spraying the paint liquid. A short shaft 22 is movably installed in the middle of the spray tank 21. The short shaft 22 can rotate in the spray tank 21. The bottom end of the short shaft 22 extends to the interior of the corresponding side spray tank 21 and is fixedly installed with a cross brush plate 23. The cross brush plate 23 rotates at high speed driven by the short shaft 22 to break the paint liquid into fine liquid droplets.

[0038] In this embodiment, a first motor 10 is fixedly mounted on the inner wall of the fixed frame 3. The first motor 10 serves as a power source for the grinding function. A main shaft 11 is fixedly mounted on the driving end of the first motor 10. After the first motor 10 is started, it drives the main shaft 11 to rotate. A worm 12 is fixedly mounted on the middle outer diameter of the main shaft 11. When the main shaft 11 rotates, the worm 12 rotates accordingly. A worm gear 13 is fixedly mounted on the middle outer diameter of the transmission shaft 7, and the worm gear 13 and the inner end of the worm 12 are meshed and connected. The rotation of the worm 12 drives the worm gear 13 and the transmission shaft 7 to rotate through the meshing transmission, thereby realizing the reciprocating motion of the grinding block 6.

[0039] Furthermore, the end of the second movable frame 14 away from the rail trolley 1 is connected to one end of the fixed frame 3 through a plurality of return springs 16. The return spring 16 provides a return elastic force for the second movable frame 14. The end of the main shaft 11 extends to the outside of the fixed frame 3 and is fixedly installed with a first chuck 17. The middle part of the end of the second movable frame 14 away from the rail trolley 1 is fixedly installed with a second chuck 18. The inner ends of the first chuck 17 and the second chuck 18 are fixedly installed with a number of hemispherical protrusions 19, and the two groups of hemispherical protrusions 19 are staggered with each other. When the main shaft 11 rotates, it drives the first chuck 17 to rotate. The hemispherical protrusions 19 on the first chuck 17 and the hemispherical protrusions 19 on the second chuck 18 are staggered with each other, and cooperate with the action of the return spring 16 to drive the second chuck 18 and the second movable frame 14 to vibrate rapidly back and forth along the direction of the guide rod 2.

[0040] Furthermore, a rotating rod 24 is movably installed in the middle of the bottom wall of the fixed box 20, and the rotating rod 24 can rotate in the middle of the bottom wall of the fixed box 20. A second motor 25 is fixedly installed on one side of the inner bottom of the fixed box 20. The second motor 25 provides power for the operation of the paint-related components. A driving bevel gear 26 is fixedly installed on the driving end of the second motor 25. After the second motor 25 is started, it drives the driving bevel gear 26 to rotate. A driven bevel gear 27 is fixedly installed on the lower outer diameter of the rotating rod 24 and the driven bevel gear 27 is meshed with the inner end of the driving bevel gear 26. The rotation of the driving bevel gear 26 drives the driven bevel gear 27 and the rotating rod 24 to rotate through meshing.

[0041] Furthermore, a driving wheel 28 is fixedly mounted on the middle outer diameter of the rotating rod 24, and a driven wheel 29 is fixedly mounted on the top of the short shaft 22. The outer diameters of the driving wheel 28 and the driven wheel 29 are connected by a synchronous belt 30. When the rotating rod 24 rotates, the driving wheel 28 is driven to rotate, and the driving wheel 28 drives the driven wheel 29 and the short shaft 22 to rotate synchronously through the synchronous belt 30, thereby causing the cross brush plate 23 to rotate at high speed.

[0042] Furthermore, a liquid trough 31 is fixedly installed on one side of the inner top of the fixed box 20. The liquid trough 31 is used to store and transport the paint spray liquid. A sleeve 32 is movably installed inside the liquid trough 31. The sleeve 32 can move up and down in the liquid trough 31. A piston 33 is fixedly installed on the top of the sleeve 32. The piston 33 realizes the suction and discharge operations of the paint spray liquid in the liquid trough 31 as the sleeve 32 moves.

[0043] Furthermore, the top end of the rotating rod 24 extends to the interior of the liquid flow tank 31 and is fixedly installed with a column 34. The column 34 rotates together with the rotating rod 24. A bidirectional spiral groove 35 is provided on the outer diameter of the column 34. A round head pin 36 is fixedly installed on one side of the inner top of the sleeve 32 and the end of the round head pin 36 is movably arranged inside the bidirectional spiral groove 35. When the rotating rod 24 drives the column 34 to rotate, the bidirectional spiral groove 35 rotates accordingly, and the round head pin 36 moves in the bidirectional spiral groove 35, thereby driving the sleeve 32 and the piston 33 to make linear motion in the liquid flow tank 31.

[0044] Furthermore, a paint liquid storage chamber 37 is fixedly installed on the top of the rail trolley 1. The paint liquid storage chamber 37 is used to store a large amount of anti-corrosion and rust-removing paint. A liquid inlet pipe 38 is fixedly installed on one side of the bottom of the paint liquid storage chamber 37, and the end of the liquid inlet pipe 38 extends to the inner top side of the liquid tank 31. The liquid inlet pipe 38 is used to transport the paint liquid in the paint liquid storage chamber 37 to the liquid tank 31. A drain pipe 39 is fixedly installed on the other side of the inner top of the liquid tank 31. The drain pipe 39 is used to discharge the paint liquid in the liquid tank 31. Two branch pipes 40 are fixedly installed on the end of the drain pipe 39, and the ends of the branch pipes 40 extend to the interior of the corresponding side spray tank 21, so that the paint liquid can enter the spray tank 21. A one-way rubber valve 41 is fixedly installed inside the liquid inlet pipe 38 and the drain pipe 39. The one-way rubber valve 41 ensures that the paint liquid can only flow in the set direction to prevent backflow.

[0045] Working principle: First, the rail trolley 1 is set up on the railway track to be maintained, and the trolley is started to move on the track to provide a mobile basis for subsequent maintenance operations. Then the first motor 10 is started, and the main shaft 11 is driven to rotate by the first motor 10. The main shaft 11 will drive the worm 12 to rotate, and the rotating worm 12 drives the worm wheel 13 and the transmission shaft 7 to rotate through the meshing transmission, thereby driving the flywheels 8 on both sides to rotate. When the flywheel 8 rotates, it will drive one end of the connecting rod 9 to make a circular motion on its surface. Under the limiting action of the guide rod 2, the other end of the connecting rod 9 will drive the first movable frame 4 to make a reciprocating linear motion, thereby driving the two grinding blocks 6 at its bottom end to follow and make a reciprocating linear motion to grind the surface of the railway track. Grind off some stubborn dirt, rust, etc. on the surface, complete the grinding work efficiently, and improve the cleanliness of the track surface. At the same time, when the main shaft 11 rotates, it will also drive the first chuck 17 to rotate. The tooth structure formed by the hemispherical protrusion 19 between the first chuck 17 and the second chuck 18, in conjunction with the reset spring 16, drives the second chuck 18 and the second movable frame 14 to vibrate back and forth rapidly along the guide rod 2 direction, cleaning the original dirt and dirt and rust generated by grinding on the surface of the railway track, ensuring the cleaning effect and improving the continuity of the maintenance process. Then start the second motor 25, and drive the active bevel gear 26 to rotate through the second motor 25, driving the driven bevel gear 27 and the rotating rod 24 to rotate. The rotating rotating rod 24 will drive the active wheel 28 rotates, and through the transmission of the synchronous belt 30, it drives the two driven wheels 29 and the short shaft 22 to rotate, and the short shaft 22 drives the cross brush plate 23 to rotate at a high speed. At the same time, when the rotating rod 24 rotates, it drives the top column 34 to rotate. When the column 34 rotates, it drives the bidirectional spiral groove 35 on the surface to rotate. When the bidirectional spiral groove 35 rotates, it drives the round head pin 36 to move inside it, and then the round head pin 36 drives the sleeve 32 and the piston 33 to do linear motion in the liquid tank 31. Since the bidirectional spiral groove 35 is composed of two spiral grooves with opposite spiral directions and connected end to end, when the round head pin 36 moves to the tail of one of the spiral grooves, it will enter the other spiral groove and change the direction of movement. With the continuous rotation of the column 34 , driving the round head pin 36, sleeve 32 and piston 33 to perform continuous up and down reciprocating motion. When the piston 33 moves downward, the air pressure in the upper space of the liquid tank 31 decreases, the one-way rubber valve 41 of the liquid inlet pipe 38 is opened, and the anti-corrosion and rust-removing paint in the paint liquid storage chamber 37 is sucked into the liquid tank 31. When the piston 33 moves upward, the air pressure in the upper space of the liquid tank 31 increases, the one-way rubber valve 41 in the drain pipe 39 is opened, and the paint liquid is sent into the drain pipe 39 and into the two spray tanks 21 through the branch pipe 40. Combined with the high-speed rotating cross brush plate 23, the paint liquid is beaten into fine liquid droplets, and mixed with air to form a paint liquid gas fluid, which is firmly sprayed on the surface of the railway track to achieve track maintenance work.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mobile maintenance device for urban railway tracks, comprising a track trolley (1); characterized in that: Two guide rods (2) are fixedly mounted on one side of the rail trolley (1), a fixed frame (3) is fixedly mounted in the middle of the guide rod (2), a first movable frame (4) is movably mounted on the outer diameter of the side of the guide rod (2) away from the rail trolley (1), a grinding block (6) is fixedly mounted on both sides of the bottom end of the first movable frame (4) through two spring rods (5), a transmission shaft (7) is movably mounted in the inner middle of the fixed frame (3), both ends of the transmission shaft (7) extend to the outside of the fixed frame (3) and are fixedly mounted with a flywheel (8), a connecting rod (9) is movably mounted on one side of the outer end of the flywheel (8), and the end of the connecting rod (9) is fixedly mounted on the outer end of the flywheel (8). The ends are movably mounted on the middle of the front and rear sides of the first movable frame (4), the guide rod (2) is movably mounted on the outer diameter of one side close to the rail trolley (1), and brushes (15) are fixedly mounted on both sides of the bottom end of the second movable frame (14). A fixed box (20) is fixedly mounted on the other side of the rail trolley (1), and a spray tank (21) is fixedly mounted on both sides of the bottom end of the fixed box (20), and a short shaft (22) is movably mounted in the middle of the spray tank (21), and the bottom end of the short shaft (22) extends to the inside of the spray tank (21) on the corresponding side and is fixedly mounted with a cross brush plate (23); A first motor (10) is fixedly mounted on the inner side wall of the fixed frame (3), a main shaft (11) is fixedly mounted on the driving end of the first motor (10), a worm (12) is fixedly mounted on the middle outer diameter of the main shaft (11), a worm wheel (13) is fixedly mounted on the middle outer diameter of the transmission shaft (7), and the worm wheel (13) and the inner side ends of the worm wheel (12) are meshed and connected; The end of the second movable frame (14) away from the rail trolley (1) is connected to one end of the fixed frame (3) through a plurality of return springs (16); the end of the main shaft (11) extends to the outside of the fixed frame (3) and is fixedly mounted with a first chuck (17); a second chuck (18) is fixedly mounted in the middle of the end of the second movable frame (14) away from the rail trolley (1); a plurality of hemispherical protrusions (19) are fixedly mounted on the inner ends of the first chuck (17) and the second chuck (18), and the two groups of hemispherical protrusions (19) are staggered with each other.

2. The mobile maintenance device for urban railway tracks according to claim 1, characterized in that: A rotating rod (24) is movably mounted on the middle portion of the bottom wall of the fixed box (20), a second motor (25) is fixedly mounted on one side of the inner bottom of the fixed box (20), a driving bevel gear (26) is fixedly mounted on the driving end of the second motor (25), a driven bevel gear (27) is fixedly mounted on the outer diameter of the lower side of the rotating rod (24), and the driven bevel gear (27) is meshed and connected with the inner end of the driving bevel gear (26).

3. The mobile maintenance device for urban railway tracks according to claim 2, characterized in that: A driving wheel (28) is fixedly mounted on the outer diameter of the middle portion of the rotating rod (24), and a driven wheel (29) is fixedly mounted on the top end of each of the short shafts (22). The outer diameters of the driving wheel (28) and the driven wheel (29) are connected via a synchronous belt (30).

4. The mobile maintenance device for urban railway tracks according to claim 2, characterized in that: A liquid flow tank (31) is fixedly mounted on one side of the inner top of the fixed box (20), a sleeve (32) is movably mounted inside the liquid flow tank (31), and a piston (33) is fixedly mounted on the top of the sleeve (32).

5. The mobile maintenance device for urban railway tracks according to claim 4, characterized in that: The top end of the rotating rod (24) extends to the inside of the liquid tank (31) and is fixedly mounted with a column (34). A bidirectional spiral groove (35) is provided on the outer diameter of the column (34). A round head pin (36) is fixedly mounted on one side of the inner top of the sleeve (32), and the end of the round head pin (36) is movably arranged inside the bidirectional spiral groove (35).

6. The mobile maintenance device for urban railway tracks according to claim 1, characterized in that: A paint liquid storage chamber (37) is fixedly installed at the top of the rail trolley (1), a liquid inlet pipe (38) is fixedly installed on one side of the bottom of the paint liquid storage chamber (37), and the end of the liquid inlet pipe (38) extends to one side of the inner top of the liquid flow tank (31), a liquid discharge pipe (39) is fixedly installed on the other side of the inner top of the liquid flow tank (31), two branch pipes (40) are fixedly installed at the end of the liquid discharge pipe (39), and the ends of the branch pipes (40) respectively extend to the inside of the corresponding side of the liquid spray tank (21), and a one-way rubber valve (41) is fixedly installed inside the liquid inlet pipe (38) and the liquid discharge pipe (39).

Images