Laser cleaning device for bogie parts of rail transit vehicle

Abstract

The invention relates to the field of cleaning devices, and discloses a rail transit vehicle bogie part laser cleaning device which comprises a plurality of cleaning tools and an automatic laser cleaning head, and the cleaning tools are installed on an operation table and used for installing corresponding cleaning parts; the automatic laser cleaning head is movably connected to the upper portion of the operation table so as to be aligned with the to-be-cleaned part of the to-be-cleaned part. The cleaning device has the beneficial effects that the cleaning tools are mounted on the operation table, so that to-be-cleaned parts can be conveniently mounted on the corresponding cleaning tools; and the automatic laser cleaning head is arranged to clean the part instead of manual polishing and cleaning, so that on the basis of thoroughly removing dirt on the surface of the part, the original matching precision of key parts such as a threaded surface and a fine assembly surface of the part is ensured, and the cleaning efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of cleaning devices, and more specifically to a laser cleaning device for bogie components of rail transit vehicles. Background Technology

[0002] As a key load-bearing and transmission component for railway passenger cars, the bogie is subject to a large amount of contaminants on the surface of core components such as traction rods and guide columns due to factors such as track dust, brake friction debris, external oil stains, and environmental humidity during long-term operation. If these contaminants are not thoroughly removed during factory maintenance, they will directly affect the quality of subsequent maintenance and the safety of vehicle operation: on the one hand, contaminants adhering to the threaded surfaces can cause bolts to not fit properly during assembly, creating a risk of loosening, which in turn can lead to abnormal noises or increased vibrations during bogie operation; on the other hand, if impurities remain on the precision assembly surfaces (such as the mating surfaces of guide columns and bushings), they will cause abnormal clearances during reassembly, accelerating component wear and shortening the service life of the bogie.

[0003] Currently, during bogie overhauls, cleaning of the traction rod threads and guide pillars primarily relies on manual operation. For the traction rod threads, manual cleaning with a wire brush is challenging due to inconsistent operator force, grinding direction, and dwell time, which can damage the thread profile accuracy, increasing the thread clearance and affecting connection strength. While angle grinder cleaning of guide pillars can remove thicker contaminants, the high-speed rotating head of the angle grinder makes precise control of the grinding range difficult, easily causing scratches or dimensional wear on the guide pillar's precision-fitted surfaces, compromising its original fit. Furthermore, angle grinder cleaning requires manual hand-held movement along the guide pillar surface, taking 15-20 minutes per pillar and necessitating frequent head changes. For bogie components undergoing mass overhauls, the overall cleaning efficiency is extremely low. Summary of the Invention

[0004] The technical problem to be solved by this invention is that manual cleaning may damage the thread profile accuracy, cause scratches or dimensional wear on the precision assembly surface, and destroy its original fit accuracy. The purpose is to provide a laser cleaning device for bogie components of rail transit vehicles, which is equipped with an automatic laser cleaning head to clean the parts, replacing manual grinding and cleaning, thereby ensuring the original fit accuracy of key parts such as threaded surfaces and precision assembly surfaces while thoroughly removing dirt from the surface of the parts.

[0005] This invention is achieved through the following technical solution:

[0006] A laser cleaning device for bogie components of rail transit vehicles includes several cleaning fixtures and an automatic laser cleaning head. The cleaning fixtures are installed on an operating table and used to install corresponding cleaning parts. The automatic laser cleaning head is movably connected above the operating table to align with the part to be cleaned.

[0007] The beneficial effects of this invention are that by installing the cleaning fixture on the operating table, it is convenient to install the parts to be cleaned onto the corresponding cleaning fixture; then, by setting an automatic laser cleaning head to clean the parts, replacing manual grinding and cleaning, the original fitting accuracy of key parts such as threaded surfaces and precision assembly surfaces of the parts is ensured while thoroughly removing dirt from the surface of the parts, and the cleaning efficiency is significantly improved.

[0008] In some embodiments, the cleaning fixture includes a guide post cleaning fixture, which comprises a first motor, a reducer, and a mounting cylinder. The input gear of the reducer is mounted on the output shaft of the first motor, and the driven gear of the reducer is connected to the lower end of the mounting cylinder. The mounting cylinder is used to mount the guide post. This allows the output torque of the first motor to be transmitted to the input gear during operation, and then to the driven gear. The driven gear drives the mounting cylinder to rotate, achieving low-speed rotation of the mounting cylinder and ensuring a good cleaning effect.

[0009] In some embodiments, the guide post cleaning fixture includes a base connected to the operating table, the mounting cylinder being connected to the base via bearings, and the first motor and reducer being connected to the lower end of the operating table via a first mounting bracket. The base supports and positions the mounting cylinder, and the first mounting bracket supports and positions the first motor and reducer, ensuring overall structural stability.

[0010] In some embodiments, a mounting cabinet is further included. A horizontal motor is mounted on the top of the mounting cabinet. The horizontal motor includes a horizontal linear guide rail and a horizontal slider. The horizontal linear guide rail is horizontally arranged along the length of the mounting cabinet. A vertical mounting frame is connected to the top of the horizontal slider, and the automatic laser cleaning head is movably connected to the vertical mounting frame. By setting up the mounting cabinet, the horizontal motor is supported and positioned, and the horizontal linear guide rail is horizontally arranged along the length of the mounting cabinet, so that the automatic laser cleaning head can slide along the length of the horizontal linear guide rail to clean parts of different lengths and positions.

[0011] In some embodiments, a vertical motor is mounted on one side of the vertical mounting bracket. The vertical motor includes a vertical linear guide rail and a vertical slider. The vertical linear guide rail is vertically arranged along the length of the vertical mounting bracket. A longitudinal motor is connected to the vertical slider. The longitudinal motor includes a longitudinal linear guide rail and a longitudinal slider. The longitudinal linear guide rail is connected to the vertical slider. The automatic laser cleaning head is connected to the longitudinal slider of the longitudinal motor. The vertical motor allows the longitudinal motor to move up and down, thereby adjusting the installation height of the automatic laser cleaning head. The longitudinal slider adjusts the longitudinal position of the automatic laser cleaning head, enabling the cleaning of parts of different heights and widths.

[0012] In some embodiments, a dust collection system is also included, which includes a vacuum pump, a dust collection hood, a cyclone separator, a connecting pipe, and a dust collection box. The vacuum pump, cyclone separator, and dust collection box are all installed inside the mounting cabinet. The dust collection hood is connected to the automatic laser cleaning head with its suction inlet facing downwards. The suction port of the vacuum pump is connected to the dust collection hood through the connecting pipe. The cyclone separator is connected to the connecting pipe, and the dust collection box is connected to the bottom of the cyclone separator. By directly connecting the dust hood to the automatic laser cleaning head with the suction inlet facing downwards, it can synchronously follow the laser action surface as the cleaning head moves in three dimensions (horizontal, vertical, and longitudinal). When the cleaning head moves to the guide post assembly surface, tie rod thread end, or other parts, the dust hood is always kept 50-100mm directly above the point of contamination, forming a local negative pressure zone. This negative pressure immediately sucks in contaminants (such as oxide scale dust and metal shavings) after they are generated, increasing the capture rate to over 95%. This completely eliminates the secondary contamination caused by dust floating and settling on the surface of parts in traditional cleaning (such as dust adhesion causing the surface finish of the guide post assembly surface to drop from Ra≤0.8μm to Ra=2.0μm or higher).

[0013] In some embodiments, the cleaning fixture includes a pull rod cleaning fixture, which comprises a second motor, a drive wheel, a drive roller, a driven roller, and a driven wheel. The drive wheel is mounted on the output shaft of the second motor and meshes with the driven wheel. The driven wheel is connected to one end of the drive roller. Both the drive roller and the driven roller are rotatably connected to a second mounting bracket. The pull rod is placed at the upper end between the drive roller and the driven roller, and the threaded end of the pull rod is located outside the second mounting bracket. The second motor, the drive wheel, and the driven wheel are all installed inside the mounting cabinet. This allows the second motor to output torque to the drive wheel during operation, causing the drive wheel to rotate, which in turn rotates the drive roller connected to the drive wheel. The rotation of the drive roller causes the pull rod, located at the upper end between the drive roller and the driven roller, to rotate. The driven roller rotates synchronously, cooperating with an automatic laser cleaning head to automatically clean the threaded portion of the pull rod, replacing manual turning and improving both cleaning effect and efficiency.

[0014] In some embodiments, a flexible layer is sleeved on the outer side of the driving roller, the driven roller is made of polytetrafluoroethylene, and the outer surface of the driven roller has a smooth finish. By setting a flexible layer on the outside of the drive roller, the friction between the drive roller and the tie rod is increased, ensuring that the tie rod can rotate under the action of the drive roller. At the same time, the softness of the flexible layer prevents the tie rod from being damaged during rotation. The driven roller is made of polytetrafluoroethylene (PTFE), which can reduce the friction with the tie rod by utilizing its significant self-lubricating properties. In addition, the low hardness of PTFE can further prevent the tie rod from being damaged during rotation. Furthermore, the smoothness of the outer surface of the driven roller, Ra≤0.8μm, can further reduce the friction with the tie rod.

[0015] In some embodiments, the system further includes two abutment blocks, which are respectively disposed at both ends of the pull rod. Each abutment block is L-shaped, with a spherical portion at its vertical end. The center of the spherical portion is coaxial with the pull rod, and the spherical portion abuts against the end of the pull rod. By providing two abutment blocks that abut against both ends of the pull rod, axial displacement of the pull rod during cleaning is prevented. The spherical portion on the abutment plate contacts the pull rod, facilitating point contact between the pull rod and the abutment blocks and preventing friction between the abutment blocks and the end faces of the pull rod, thus preventing abrasion of the threaded portion and end of the pull rod.

[0016] In some embodiments, the system further includes a cleaning head bracket and a handheld cleaning head. The cleaning head bracket includes a mounting rod, an adjusting rod, and a clamping member. The mounting rod is vertically mounted on one end of the top of the mounting cabinet. The adjusting rod is vertically adjustable and connected to the mounting rod. The clamping member is connected to the adjusting rod, and the handheld cleaning head is hinged to the clamping member. By providing a handheld cleaning head, the system can effectively clean blind spots and lightly contaminated precision surfaces that cannot be covered by automated cleaning, thereby improving the overall versatility of the cleaning device.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. By setting up an automatic laser cleaning head to clean parts, replacing manual grinding and cleaning, the original fitting accuracy of key parts such as threaded surfaces and precision assembly surfaces is ensured while thoroughly removing dirt from the surface of the parts, and the cleaning efficiency is significantly improved.

[0019] 2. Adjust the longitudinal, horizontal, and height positions of the automatic laser cleaning head to clean parts of different heights, widths, and lengths.

[0020] 3. A flexible layer is installed on the outer side of the drive roller to increase the friction between the drive roller and the tie rod, ensuring that the tie rod can rotate under the action of the drive roller. At the same time, the softness of the flexible layer prevents the tie rod from being damaged during rotation. The driven roller is made of polytetrafluoroethylene (PTFE), which can reduce the friction with the tie rod by utilizing its significant self-lubricating properties. PTFE also has low hardness, which further prevents the tie rod from being damaged during rotation. In addition, the smoothness of the outer surface of the driven roller, Ra≤0.8μm, can further reduce the friction with the tie rod.

[0021] 4. A handheld cleaning head is provided to facilitate the cleaning of blind spots and lightly contaminated precision surfaces that cannot be covered by automated cleaning, thereby improving the overall versatility of the cleaning device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0023] Figure 1 This is a structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the invention from another perspective;

[0025] Figure 3 This is a partial structural diagram of the present invention;

[0026] Figure 4 This is a structural diagram of the guide post cleaning fixture in this invention;

[0027] Figure 5 This is a top view of the rod cleaning fixture in this invention.

[0028] The attached diagram shows the markings and corresponding component names:

[0029] Operating console 1, pull rod cleaning fixture 11, backing plate 111, pull rod 112, second mounting bracket 113, driving roller 114, driven roller 115, guide column cleaning fixture 12, first motor 121, reducer 122, mounting cylinder 123, first mounting bracket 124, screen operation box 20, mounting cabinet 30, dust collection system 31, automatic laser cleaning head 32, horizontal linear guide rail 33, horizontal motor 331, vertical mounting bracket 34, vertical linear guide rail 35, vertical motor 351, longitudinal linear guide rail 36, longitudinal motor 361, fiber optic gantry 40, spring balance hanger 41, cleaning head bracket 50, handheld cleaning head 51. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0031] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" 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 invention 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 limiting the scope of protection of this invention.

[0033] The terms "first," "second," etc., used in this invention are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0034] Example

[0035] like Figures 1-5As shown, this embodiment provides a laser cleaning device for bogie components of rail transit vehicles, including several cleaning fixtures and an automatic laser cleaning head 32. The cleaning fixtures are installed on an operating table 1 and used to install corresponding parts to be cleaned. The automatic laser cleaning head 32 is movably connected above the operating table 1 to align with the parts to be cleaned. By installing the cleaning fixtures on the operating table 1, it is easy to install the parts to be cleaned onto the corresponding cleaning fixtures. Then, by setting the automatic laser cleaning head 32 to clean the parts, replacing manual grinding and cleaning, the device thoroughly removes dirt from the surface of the parts, ensures the original fitting accuracy of key parts such as threaded surfaces and precision assembly surfaces, and significantly improves cleaning efficiency.

[0036] See Figure 1 and Figure 4 The cleaning fixture includes a guide post cleaning fixture 12, which comprises a first motor 121, a reducer 122, and a mounting cylinder 123. The input gear of the reducer 122 is mounted on the output shaft of the first motor 121, and the driven gear of the reducer 122 is connected to the lower end of the mounting cylinder 123. The mounting cylinder 123 is used to mount the guide posts. This allows the output torque of the first motor 121 to be transmitted to the input gear during operation, and then to the driven gear. The driven gear drives the mounting cylinder 123 to rotate, achieving low-speed rotation of the mounting cylinder 123 and ensuring effective cleaning.

[0037] See Figure 1 and Figure 4 The guide post cleaning fixture 12 includes a base connected to the operating table 1. The mounting cylinder 123 is connected to the base via bearings. The first motor 121 and the reducer 122 are connected to the lower end of the operating table 1 via a first mounting bracket 124. The mounting cylinder 123 is supported and positioned by the base, and the first motor 121 and the reducer 122 are supported and positioned by the first mounting bracket 124, ensuring the overall structural stability.

[0038] See Figures 1 to 3 The system also includes a mounting cabinet 30, on the top of which is mounted a horizontal motor 331. The horizontal motor 331 includes a horizontal linear guide rail 33 and a horizontal slider. The horizontal linear guide rail 33 is horizontally arranged along the length of the mounting cabinet 30. A vertical mounting frame 34 is connected to the top of the horizontal slider, and the automatic laser cleaning head 32 is movably connected to the vertical mounting frame 34. By setting up the mounting cabinet 30, the horizontal motor 331 is supported and positioned, and the horizontal linear guide rail 33 is horizontally arranged along the length of the mounting cabinet 30, allowing the automatic laser cleaning head 32 to slide along the length of the horizontal linear guide rail 33, thus enabling the cleaning of parts of different lengths and positions.

[0039] See Figures 1 to 3 A vertical motor 351 is mounted on one side of the vertical mounting bracket 34. The vertical motor 351 includes a vertical linear guide rail 35 and a vertical slider. The vertical linear guide rail 35 is vertically arranged along the length of the vertical mounting bracket 34. A longitudinal motor 361 is connected to the vertical slider. The longitudinal motor 361 includes a longitudinal linear guide rail 36 and a longitudinal slider. The longitudinal linear guide rail 36 is connected to the vertical slider. The automatic laser cleaning head 32 is connected to the longitudinal slider of the longitudinal motor 361. By using the vertical motor 351, the longitudinal motor 361 can move up and down along the vertical motor 351, thereby adjusting the installation height of the automatic laser cleaning head 32. By sliding the longitudinal slider, the longitudinal position of the automatic laser cleaning head 32 can be adjusted, enabling the cleaning of parts of different heights and widths.

[0040] See Figures 1 to 3 It also includes a dust collection system 31, which includes a vacuum pump, a dust collection hood, a cyclone separator, a connecting pipe, and a dust collection box. The vacuum pump, cyclone separator, and dust collection box are all installed inside the mounting cabinet 30. The dust collection hood is connected to the automatic laser cleaning head 32 with its suction inlet facing downwards. The suction port of the vacuum pump is connected to the dust collection hood through the connecting pipe. The cyclone separator is connected to the connecting pipe, and the dust collection box is connected to the bottom of the cyclone separator. By directly connecting the dust hood to the automatic laser cleaning head 32 with the suction inlet facing downwards, it can synchronously follow the laser action surface as the cleaning head moves in three dimensions (horizontal, vertical, and longitudinal). When the cleaning head moves to the guide post assembly surface, the threaded end of the pull rod 112, or other parts, the dust hood is always kept 50-100mm directly above the point of contamination, forming a local negative pressure zone. Contaminants (such as oxide scale dust and metal shavings) are immediately sucked in by the negative pressure after they are generated, increasing the capture rate to over 95%. This completely eliminates the secondary contamination caused by dust floating and settling on the surface of parts in traditional cleaning (such as dust adhesion causing the surface finish of the guide post assembly surface to drop from Ra≤0.8μm to Ra=2.0μm or higher).

[0041] See Figures 1 to 3The cleaning fixture includes a pull rod cleaning fixture 11, which includes a second motor, a drive wheel, a drive roller 114, a driven roller 115, and a driven wheel. The drive wheel is mounted on the output shaft of the second motor and meshes with the driven wheel. The driven wheel is connected to one end of the drive roller 114. Both the drive roller 114 and the driven roller 115 are rotatably connected to a second mounting bracket 113. A pull rod 112 is placed at the upper end between the drive roller and the driven roller. The threaded end of the pull rod 112 is located outside the second mounting bracket 113. The second motor, the drive wheel, and the driven wheel are all installed inside the mounting cabinet 30. In order to facilitate the operation, the second motor outputs torque to the drive wheel, which drives the driven wheel to rotate, and in turn drives the drive roller connected to the drive wheel to rotate. The rotation of the drive roller drives the pull rod 112 located at the upper end between the drive roller and the driven roller to rotate. The driven roller 115 rotates synchronously, and the threaded part of the pull rod 112 is automatically cleaned by the automatic laser cleaning head 32, which replaces manual turning and improves cleaning effect and cleaning efficiency.

[0042] See Figures 1 to 3 The driving roller 114 has a flexible layer sleeved on its outer side, and the driven roller is made of polytetrafluoroethylene (PTFE). The outer surface finish of the driven roller is Ra≤0.8μm. By providing a flexible layer on the outer side of the driving roller 114, the friction between the driving roller 114 and the pull rod 112 is increased, ensuring that the pull rod 112 can rotate under the action of the driving roller 114. At the same time, the softness of the flexible layer prevents the pull rod 112 from being damaged during rotation. The driven roller 115 is made of PTFE, which can reduce the friction with the pull rod 112 by utilizing its significant self-lubricating properties. PTFE also has low hardness, which further prevents the pull rod 112 from being damaged during rotation. In addition, the outer surface finish of the driven roller 115, Ra≤0.8μm, further reduces the friction with the pull rod 112.

[0043] See Figure 1 and Figure 5 It also includes two abutment blocks, which are respectively disposed at both ends of the pull rod 112. The abutment blocks are L-shaped plates, and each abutment block has a spherical part at its vertical end. The center of the spherical part is coaxial with the pull rod 112, and the spherical part abuts against the end of the pull rod 112. By setting two abutment blocks to abut against both ends of the pull rod 112, axial displacement of the pull rod 112 is prevented during cleaning. The spherical part on the abutment plate 111 contacts the pull rod 112, so as to achieve point contact between the pull rod 112 and the abutment blocks, and prevent friction and abrasion of the threaded part and end of the pull rod 112.

[0044] See Figure 1 and Figure 5 The system also includes a cleaning head bracket 50 and a handheld cleaning head 51. The cleaning head bracket 50 includes a mounting rod, an adjusting rod, and a clamping member. The mounting rod is vertically mounted on one end of the top of the mounting cabinet 30. The adjusting rod is vertically adjustable and connected to the mounting rod. The clamping member is connected to the adjusting rod, and the handheld cleaning head 51 is hinged to the clamping member. By providing the handheld cleaning head 51, it is possible to clean blind spots that cannot be covered by automated cleaning and lightly contaminated precision surfaces, thereby improving the overall versatility of the cleaning device.

[0045] See Figure 1 In this invention, the horizontal motor 331, vertical motor 351, and longitudinal motor 361 can all be slider motors or lead screw motors. Specifically, the vertical mounting bracket is connected to the slider of the slider motor or the nut of the lead screw motor. A laser source is also included.

[0046] See Figure 1 The first motor 121, the second motor, the vertical motor 351, the horizontal motor 331, and the longitudinal motor 361 are all electrically connected to the control system. It also includes a position sensor, which monitors the distance between the cleaning head and the surface of the part in real time and automatically feeds this information back to the control system to adjust the position of the focusing lens (e.g., when the guide post rotates, the surface distance changes, and the sensor triggers automatic focal length compensation).

[0047] See Figure 1 and Figure 2 The automatic cleaning head uses a 500W laser, which is fixed at the tooling location (such as next to guide column cleaning tool 12 or tie rod cleaning tool 11). Its high power and fixed layout are specifically designed for scenarios involving high levels of contamination in bogie components that require continuous batch cleaning. The handheld cleaning head 51 uses a 200W laser, which is fixed to the end of a detachable bracket and designed with a handheld grip. Its low power and portable design are specifically designed for blind spots that automated cleaning cannot cover and for cleaning lightly contaminated precision surfaces. Some components have low-pollution, high-precision structures (such as the bearing mounting surface at the end of the guide post and the inner wall of the connection hole between the tie rod 112 and other components). These parts have a thin contamination layer (0.01-0.05mm) and require high surface precision (Ra≤0.4μm). The energy density of a 200W laser (3-8J / cm²) can accurately remove contaminants without damaging the substrate—avoiding the surface micro-melting that may be caused by a 500W high-power laser (such as tiny spots appearing on precision surfaces), thus achieving safe cleaning in light-pollution, high-precision scenarios.

[0048] See Figure 3The laser cleaning head, as the core execution component, integrates functions such as laser output, optical path adjustment, cooling and protection, and positioning detection. It is a conventional technology for laser cleaning and will not be elaborated upon here. The system also includes a screen operation box 20, which is electrically connected to the control system.

[0049] See Figure 1 and Figure 2 It also includes a fiber optic gantry 40 and spring-loaded balancing hangers 41. The fiber optic gantry 40 is connected to the upper end of the mounting cabinet 30 and located above the automatic laser cleaning head. At least two spring-loaded balancing hangers 41 are connected to the lower end of the fiber optic gantry 40. This achieves the key link of suspending and supporting the optical fiber, ensuring stable transmission, precise cleaning, and safe operation of the laser cleaning device. It solves the core pain point of fiber optic transmission and equipment interference, optimizes the drive load and positioning accuracy through weight balance, and reduces safety risks and maintenance costs, fully meeting the high-efficiency, high-precision, and high-reliability operation requirements of laser cleaning of bogie components.

[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A laser cleaning device for bogie components of rail transit vehicles, characterized in that, include: Several cleaning fixtures are installed on the operating table and used to install corresponding cleaning parts; An automatic laser cleaning head is movably connected above the operating table to be aligned with the part to be cleaned.

2. The laser cleaning device for bogie components of rail transit vehicles according to claim 1, characterized in that, The cleaning fixture includes a guide post cleaning fixture, which includes a first motor, a reducer, and a mounting cylinder. The input gear of the reducer is mounted on the output shaft of the first motor, and the driven gear of the reducer is connected to the lower end of the mounting cylinder. The mounting cylinder is used to install the guide post.

3. The laser cleaning device for bogie components of rail transit vehicles according to claim 2, characterized in that, The guide post cleaning fixture includes a base connected to the operating table, a mounting cylinder connected to the base via bearings, and a first motor and a reducer connected to the lower end of the operating table via a first mounting bracket.

4. The laser cleaning device for bogie components of rail transit vehicles according to claim 1, characterized in that, It also includes an installation cabinet, on the top of which is mounted a horizontal motor. The horizontal motor includes a horizontal linear guide rail and a horizontal slider. The horizontal linear guide rail is horizontally arranged along the length of the installation cabinet. A vertical mounting frame is connected to the top of the horizontal slider. The automatic laser cleaning head is movably connected to the vertical mounting frame.

5. The laser cleaning device for bogie components of rail transit vehicles according to claim 4, characterized in that, A vertical motor is installed on one side of the vertical mounting bracket. The vertical motor includes a vertical linear guide rail and a vertical slider. The vertical linear guide rail is vertically arranged along the length direction of the vertical mounting bracket. A longitudinal motor is connected to the vertical slider. The longitudinal motor includes a longitudinal linear guide rail and a longitudinal slider. The longitudinal linear guide rail is connected to the vertical slider. The automatic laser cleaning head is connected to the longitudinal slider of the longitudinal motor.

6. The laser cleaning device for bogie components of rail transit vehicles according to claim 5, characterized in that, It also includes a dust collection system, which comprises a vacuum pump, a dust collection hood, a cyclone separator, a connecting pipe, and a dust collection box. The vacuum pump, cyclone separator, and dust collection box are all installed inside the mounting cabinet. The dust collection hood is connected to the automatic laser cleaning head with its suction inlet facing downwards. The suction port of the vacuum pump is connected to the dust collection hood through the connecting pipe. The cyclone separator is connected to the connecting pipe, and the dust collection box is connected to the bottom of the cyclone separator.

7. The laser cleaning device for bogie components of rail transit vehicles according to claim 4, characterized in that, The cleaning fixture includes a pull rod cleaning fixture, which includes a second motor, a drive wheel, a drive roller, a driven roller, and a driven wheel. The drive wheel is mounted on the output shaft of the second motor and meshes with the driven wheel. The driven wheel is connected to one end of the drive roller. Both the drive roller and the driven roller are rotatably connected to a second mounting bracket. The pull rod is placed at the upper end between the drive roller and the driven roller, and the threaded end of the pull rod is located outside the second mounting bracket. The second motor, the drive wheel, and the driven wheel are all installed inside the mounting cabinet.

8. The laser cleaning device for bogie components of rail transit vehicles according to claim 7, characterized in that, The outer side of the driving roller is fitted with a flexible layer, and the driven roller is made of polytetrafluoroethylene (PTFE). The outer surface of the driven roller has a smooth finish. .

9. The laser cleaning device for bogie components of rail transit vehicles according to any one of claims 1-8, characterized in that, It also includes two abutment blocks, which are respectively disposed at both ends of the pull rod. The abutment blocks are L-shaped plates, and the vertical ends of the abutment blocks are provided with spherical parts. The center of the spherical parts is coaxial with the pull rod, and the spherical parts abut against the ends of the pull rod.

10. The laser cleaning device for bogie components of rail transit vehicles according to any one of claims 4-8, characterized in that, It also includes a cleaning head bracket and a handheld cleaning head. The cleaning head bracket includes a mounting rod, an adjusting rod, and a clamping member. The mounting rod is vertically mounted on one end of the top of the mounting cabinet. The adjusting rod is vertically adjustable and connected to the mounting rod. The clamping member is connected to the adjusting rod, and the handheld cleaning head is hinged to the clamping member.

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