Brake beam cleaning system

Abstract

The invention discloses a brake beam cleaning system. The system comprises a conveying mechanism, a cleaning mechanism and a control mechanism. The transmission mechanism is used for bearing and driving the brake beam to move; the conveying mechanism is sequentially divided into a first area and a second area in the moving direction of the brake beam. The cleaning mechanism is arranged corresponding to the second area and comprises a movement assembly and an execution assembly, and the execution assembly comprises a laser positioning device and a laser cleaning device; the movement assembly is used for jacking the brake beam to the working height; the laser positioning device is used for measuring the relative distance between the laser positioning device and the end face of the brake beam at the working height and sending the relative distance to the control unit so that the control unit can determine compensation coordinates according to the relative distance. And the laser cleaning device is used for determining a target cleaning path according to the compensation coordinates and a preset initial cleaning path and cleaning the brake beam according to the target cleaning path. According to the scheme, automatic cleaning of the brake beam can be achieved, and the cleaning efficiency and the cleaning effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway vehicle engineering, and in particular to a brake beam cleaning system. Background Art

[0002] The brake beam is a critical component in the braking system of railway vehicles. To ensure its reliability and safety, it requires regular inspection and cleaning. In particular, the end faces and circumference of the brake beam must be inspected for cracks. Because the brake beam surface is prone to rust, it must be thoroughly cleaned and rust-removed before inspection.

[0003] Currently, brake beam cleaning is mostly done manually by grinding or sandblasting, which results in high noise, low efficiency, and severe environmental pollution. Furthermore, grinding or sandblasting can lead to inaccurate flaw detection results, posing a potential threat to the safe operation of railway vehicles. Summary of the Invention

[0004] The present invention provides a brake beam cleaning system, which can realize automatic cleaning of the brake beam, thereby improving the cleaning efficiency and cleaning effect, ensuring the accuracy of subsequent brake beam flaw detection, and laying the foundation for the safe operation of railway vehicles.

[0005] According to one aspect of the present invention, a brake beam cleaning system is provided, comprising: a transmission mechanism, a cleaning mechanism and a control mechanism; the control mechanism is electrically connected to the transmission mechanism and the cleaning mechanism respectively; wherein the transmission mechanism is used to carry the brake beam and drive the brake beam to move; along the moving direction of the brake beam, the transmission mechanism is divided into a first area and a second area in sequence; the cleaning mechanism is arranged corresponding to the second area, and the cleaning mechanism comprises: a motion component and an execution component, the execution component comprises a laser positioning device and a laser cleaning device; the motion component is used to lift the brake beam to a working height; the laser positioning device is used to measure the relative distance between the end face of the brake beam at the working height, and send the relative distance to the control unit, so that the control unit determines the compensation coordinates according to the relative distance; the laser cleaning device is used to determine the target cleaning path according to the compensation coordinates and a preset initial cleaning path, and clean the brake beam according to the target cleaning path; the control mechanism is used to control the operation of the transmission mechanism and the cleaning mechanism.

[0006] Optionally, when the number of the actuator is one, the motion component is also used to control the brake beam to rotate 180° after the end face and the peripheral surface of one side of the brake beam are cleaned.

[0007] Optionally, when there are two actuators, the two actuators are symmetrically arranged on both sides of the second area, and one actuator is used to clean the end surface and the peripheral surface of one side of the brake beam.

[0008] Optionally, the transmission mechanism includes a pallet and two independent conveyor belts, the first area and the second area correspond to a conveyor belt respectively, and the pallet is placed on the conveyor belt; wherein each conveyor belt is provided with a photoelectric detection switch and a pneumatic double blocker; the photoelectric detection switch is used to detect whether the brake beam is in place; the pneumatic double blocker is used to limit the brake beam after the brake beam is in place; the transmission line speed of each conveyor belt is adjustable.

[0009] Optionally, the tray has a plurality of recessed portions, one recessed portion is used to accommodate one brake beam; and the recessed portions are distributed at intervals along the length direction of the conveyor belt.

[0010] Optionally, the laser positioning device includes a robotic arm with multiple degrees of freedom, and a laser sensor arranged at the tool end of the robotic arm; the laser cleaning device includes a robotic arm with multiple degrees of freedom, and a laser cleaner arranged at the tool end of the robotic arm; the laser width emitted by the laser cleaner during operation matches the model of the brake beam.

[0011] Optionally, the execution component also includes: a dust removal device; the dust removal device is set corresponding to the laser cleaning device, and is used to absorb dust generated by the laser cleaning device during operation.

[0012] Optionally, it also includes: a centering mechanism, and the control mechanism is electrically connected to the centering mechanism; wherein the centering mechanism is set corresponding to the first area, and is used to perform centering correction on the brake beam, and the corrected brake beam is axially symmetrically distributed along the central axis of the transmission mechanism.

[0013] Optionally, the centering mechanism includes an even number of retractable pneumatic centering devices; the even number of pneumatic centering devices are symmetrically arranged on both sides of the first area, and the pneumatic centering device includes: a driving member and a push plate; the output end of the driving member is connected to the push plate, and the push plate moves toward or away from the brake beam under the drive of the driving member.

[0014] Optionally, it also includes: an openable and closable box; when the box is closed, a closed space is formed inside the box; the second area and the cleaning mechanism are both arranged in the box.

[0015] The technical solution of an embodiment of the present invention is to design a brake beam cleaning system comprising a transmission mechanism, a cleaning mechanism, and a control mechanism, each electrically connected to the transmission mechanism and the cleaning mechanism. First, because the transmission mechanism can carry and drive the brake beam, it can achieve fully automated transportation of the brake beam, from loading to cleaning and finally unloading. Second, the cleaning mechanism comprises a motion assembly and an actuator assembly, which includes a laser positioning device and a laser cleaning device. When the motion assembly lifts the brake beam to the working height, the laser positioning device first measures the relative distance from the end face of the brake beam at the working height and transmits the relative distance to a control unit, which determines a compensation coordinate based on the relative distance. The laser cleaning device then determines a target cleaning path based on the compensation coordinate and a preset initial cleaning path, and cleans the brake beam according to the target cleaning path, thereby achieving automated cleaning of the brake beam and improving cleaning efficiency. Furthermore, because the present invention uses laser to clean the brake beam, it avoids the inaccurate flaw detection results caused by grinding or sandblasting, thereby improving cleaning effectiveness and ensuring the accuracy of subsequent brake beam flaw detection, laying a foundation for the safe operation of railway vehicles.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 1 is a schematic structural diagram of a brake beam cleaning system provided by an embodiment of the present invention;

[0019] Figure 2 1 is a schematic top view of a brake beam cleaning system provided by an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a brake beam cleaning system provided by an embodiment of the present invention;

[0021] Figure 4 is a partial schematic diagram of a conveyor belt provided by an embodiment of the present invention;

[0022] Figure 5 It is a structural schematic diagram of another brake beam cleaning system provided by an embodiment of the present invention.

[0023] Reference numerals:

[0024] 10-transmission mechanism; 11-first area; 12-second area; 13-tray; 15-photoelectric detection switch; 16-pneumatic double blocker; 20-cleaning mechanism; 21-movement component; 22-laser positioning device; 23-laser cleaning device; 24-dust removal device; 30-control mechanism; 40-centering mechanism; 41-pneumatic centering device; 42-driving member; 43-push plate; 50-box. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In addition, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0030] Figure 1 FIG. 1 is a schematic structural diagram of a brake beam cleaning system provided by an embodiment of the present invention. Figure 1 As shown, the brake beam cleaning system includes: a transmission mechanism 10, a cleaning mechanism 20 and a control mechanism 30. The control mechanism 30 is electrically connected to the transmission mechanism 10 and the cleaning mechanism 20 respectively, and is used to control the operation of the transmission mechanism 10 and the cleaning mechanism 20.

[0031] The control mechanism 30 can be implemented using a programmable logic controller (PLC) to perform logical control of the other mechanisms. The control mechanism 30 can be integrated with a display screen and interactive buttons. Optionally, the control mechanism 30 can also be connected to various external human-computer interaction devices (such as a display, touch screen, keyboard, mouse, etc.) to facilitate user command input and display of relevant information.

[0032] Figure 2 This is a schematic top view of a brake beam cleaning system provided by an embodiment of the present invention. Figure 3 Schematic diagram of the three-dimensional structure of a brake beam cleaning system provided by an embodiment of the present invention. Figure 2 and Figure 3 As shown, the transmission mechanism 10 is used to carry the brake beam and drive the brake beam to move. Figure 2The transmission mechanism 10 is divided into a first area 11 and a second area 12 in sequence (in the direction indicated by the arrow in the middle). Among them, according to the functional division, the brake beam cleaning system can include a loading station, a cleaning station and an unloading station. Optionally, it can also include a centering station. The first area 11 can correspond to the loading station, and the brake beam completes the loading process at the loading station; if the brake beam cleaning system also includes a centering station, then the first area 11 also corresponds to the centering station, and the brake beam completes the centering operation at the centering station. The second area 12 can correspond to the cleaning station and the unloading station, and the brake beam is cleaned at the cleaning station and completes the unloading process at the unloading station. In this way, the full process of automated transportation of the brake beam from loading to cleaning and final unloading can be realized.

[0033] In a possible implementation, the transport mechanism 10 includes a tray 13 and a transport belt, and the transport belt is driven by a variable frequency motor.

[0034] In another possible implementation, the transport mechanism 10 may include a tray and two independent transport belts, with the first area 11 and the second area 12 corresponding to one transport belt respectively. Figure 2 As shown, the two conveyor belts are arranged in a straight line. Each conveyor belt is driven by a variable frequency motor, and the transmission line speed of each conveyor belt is adjustable. This allows independent control of the different conveyor belts, thus saving resources.

[0035] Tray 13 is placed on the conveyor belt. Typically, more than one tray 13 can be placed on the conveyor belt. Tray 13 has several recessed sections, each for accommodating a brake beam. The recessed sections are spaced apart along the length of the conveyor belt. This improves cleaning efficiency.

[0036] In one embodiment, Figure 4 FIG is a partial schematic diagram of a transmission belt provided by an embodiment of the present invention. Figure 4 As shown, each conveyor belt is provided with a photoelectric detection switch 15 and a pneumatic double blocker 16. The photoelectric detection switch 15 is used to detect whether the brake beam is in place; the pneumatic double blocker 16 is used to limit the brake beam after the brake beam is in place.

[0037] For example, a photoelectric detection switch 15 can be positioned below the conveyor belt and capable of emitting a photoelectric signal. When the brake beam moves to the position corresponding to the photoelectric detection switch 15, the photoelectric signal is blocked by the tray 13 below the brake beam, indicating that the brake beam has moved to the position of the photoelectric detection switch 15 and is in position. At this point, the pneumatic double blocker 16 rises above the conveyor belt to limit the brake beam's position. The photoelectric detection switch 15 and the pneumatic double blocker 16 cooperate to prevent the brake beam from moving further to the next station.

[0038] It should be noted that in order to ensure that the photoelectric detection switch 15 and the pneumatic double blocker 16 can successfully engage the brake beam, the distance between the photoelectric detection switch 15 and the pneumatic double blocker 16 should not be too large. Typically, the distance between the photoelectric detection switch 15 and the pneumatic double blocker 16 is no greater than the product of the transmission line speed of the corresponding conveyor and the first time, which is equal to the time difference between the photoelectric detection switch 15 detecting that the brake beam is in place and the pneumatic double blocker 16 rising into place.

[0039] The cleaning mechanism is provided corresponding to the second area 12 , and includes: a motion component 21 and an execution component, and the execution component includes a laser positioning device 22 and a laser cleaning device 23 .

[0040] Specifically, the motion component 21 is used to lift the brake beam to the working height; the laser positioning device 22 is used to measure the relative distance between the end face of the brake beam at the working height and send the relative distance to the control unit 30, so that the control unit 30 determines the compensation coordinates according to the relative distance; the laser cleaning device 23 is used to determine the target cleaning path according to the compensation coordinates and the preset initial cleaning path, and clean the brake beam according to the target cleaning path.

[0041] Because brake beams may vary in size, the cleaning position of the laser cleaning device 23 may differ for different brake beam models. The laser cleaning device 23 may have a pre-stored initial cleaning path (e.g., the cleaning path corresponding to a default brake beam model, or the cleaning path corresponding to a previously cleaned brake beam). The control unit 30 determines compensation coordinates based on the relative distance between the laser positioning device 22 and the end face of the brake beam. The laser cleaning device 23 then determines a target cleaning path based on the compensation coordinates and the pre-set initial cleaning path, and cleans the brake beam according to the target cleaning path.

[0042] It is understandable that if the control unit 30 determines that no compensation is required based on the relative distance between the laser positioning device 22 and the end surface of the brake beam, then the compensation coordinate may be set to 0.

[0043] In one embodiment, the number of execution components may be one or two.

[0044] When there is only one actuator assembly, that is, the laser cleaning device 23 can only clean the end surface and peripheral surface of one side of the brake beam at a time, the motion assembly 21 is also used to control the brake beam to rotate 180 degrees after cleaning the end surface and peripheral surface of one side of the brake beam, so as to continue cleaning the end surface and peripheral surface of the other side of the brake beam.

[0045] When there are two actuators, they are symmetrically arranged on both sides of the second area 12, and one actuator is used to clean the end surface and peripheral surface of one side of the brake beam. That is, the two laser cleaning devices 23 clean the end surfaces and peripheral surfaces of both sides of the brake beam simultaneously.

[0046] It can be understood that when the number of the actuator is one, the cost of the brake beam cleaning system is low, which can save costs; when the number of the actuator is two, the cleaning efficiency of the brake beam cleaning system is higher.

[0047] In one embodiment, the laser positioning device 22 comprises a multi-degree-of-freedom robotic arm and a laser sensor mounted on the tool end of the robotic arm. The laser cleaning device 23 comprises a multi-degree-of-freedom robotic arm and a laser cleaner mounted on the tool end of the robotic arm. The laser light emitted by the laser cleaner during operation is tailored to the model of the brake beam. For example, for a model A brake beam, the laser light emitted by the laser cleaner has a width of W1; for a model B brake beam, the laser light emitted by the laser cleaner has a width of W2, and so on.

[0048] In one embodiment, continue to refer to Figure 2 and Figure 3 The execution component further includes: a dust removal device 24. The dust removal device 24 is provided corresponding to the laser cleaning device 23. For example, a dust removal device 24 is provided near a laser cleaning device 23. The dust removal device 24 is used to absorb dust generated by the laser cleaning device 23 during operation.

[0049] In one embodiment, Figure 5 This is a structural diagram of another brake beam cleaning system provided by an embodiment of the present invention. Figure 2 、 Figure 3 and Figure 5 It can be seen that the brake beam cleaning system may further include: a centering mechanism 40 , and the control mechanism 30 is electrically connected to the centering mechanism 40 .

[0050] The centering mechanism 40 is provided corresponding to the first area 11 and is used for performing centering correction on the brake beam. The corrected brake beam is axially symmetrically distributed along the central axis of the transmission mechanism 10 .

[0051] Specifically, the centering mechanism 40 includes an even number of retractable pneumatic centering devices 41 ( Figure 2 and Figure 3 (Each of the four pneumatic centering devices is shown as an example.) An even number of pneumatic centering devices 41 are symmetrically arranged on both sides of the first region 11. The pneumatic centering devices 41 include a driving member 42 and a push plate 43. The output end of the driving member 42 is connected to the push plate 43. The push plate 43 is driven by the driving member 42 to move toward or away from the brake beam.

[0052] In one embodiment, continue to refer to Figure 2 and Figure 3 The brake beam cleaning system further comprises: an openable and closable box 50; when the box 50 is closed, a closed space is formed inside the box 50; the second area 12 and the cleaning mechanism are both arranged inside the box 50. In this way, contamination caused by the laser can be avoided.

[0053] The technical solution of an embodiment of the present invention is to design a brake beam cleaning system comprising a transmission mechanism, a cleaning mechanism, and a control mechanism, each electrically connected to the transmission mechanism and the cleaning mechanism. First, because the transmission mechanism can carry and drive the brake beam, it can achieve fully automated transportation of the brake beam, from loading to cleaning and finally unloading. Second, the cleaning mechanism comprises a motion assembly and an actuator assembly, which includes a laser positioning device and a laser cleaning device. When the motion assembly lifts the brake beam to the working height, the laser positioning device first measures the relative distance from the end face of the brake beam at the working height and transmits the relative distance to a control unit, which determines a compensation coordinate based on the relative distance. The laser cleaning device then determines a target cleaning path based on the compensation coordinate and a preset initial cleaning path, and cleans the brake beam according to the target cleaning path, thereby achieving automated cleaning of the brake beam and improving cleaning efficiency. Furthermore, because the present invention uses laser to clean the brake beam, it avoids the inaccurate flaw detection results caused by grinding or sandblasting, thereby improving cleaning effectiveness and ensuring the accuracy of subsequent brake beam flaw detection, laying a foundation for the safe operation of railway vehicles.

[0054] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A brake beam cleaning system, characterized in that: include: A transmission mechanism, a cleaning mechanism and a control mechanism; the control mechanism is electrically connected to the transmission mechanism and the cleaning mechanism respectively; wherein, The transmission mechanism is used to carry the brake beam and drive the brake beam to move; along the moving direction of the brake beam, the transmission mechanism is divided into a first area and a second area in sequence; The cleaning mechanism is provided corresponding to the second area, and includes: a motion component and an execution component, the execution component including a laser positioning device and a laser cleaning device; the motion component is used to lift the brake beam to a working height; the laser positioning device is used to measure the relative distance between the brake beam and the end surface of the brake beam at the working height, and send the relative distance to the control unit, so that the control unit determines a compensation coordinate based on the relative distance; the laser cleaning device is used to determine a target cleaning path based on the compensation coordinate and a preset initial cleaning path, and clean the brake beam according to the target cleaning path; The control mechanism is used to control the operation of the transmission mechanism and the cleaning mechanism.

2. The brake beam cleaning system according to claim 1, characterized in that: When the number of the execution assembly is one, the motion assembly is further used to control the brake beam to rotate 180° after the end surface and the peripheral surface on one side of the brake beam are cleaned.

3. The brake beam cleaning system according to claim 1, characterized in that: When there are two actuators, the two actuators are symmetrically arranged on both sides of the second area, and one actuator is used to clean the end surface and the peripheral surface of one side of the brake beam.

4. The brake beam cleaning system according to claim 1, characterized in that: The transport mechanism includes a tray and two independent transport belts, the first area and the second area each correspond to a transport belt, and the tray is placed on the transport belts; Wherein, each of the conveyor belts is provided with a photoelectric detection switch and a pneumatic double blocker; the photoelectric detection switch is used to detect whether the brake beam is in place; the pneumatic double blocker is used to limit the brake beam after the brake beam is in place; The transmission line speed of each of the transmission belts is adjustable.

5. The brake beam cleaning system according to claim 4, characterized in that: The tray is provided with a plurality of recessed portions, one of which is used to accommodate one of the brake beams; the recessed portions are distributed at intervals along the length direction of the conveyor belt.

6. The brake beam cleaning system according to any one of claims 1 to 3, characterized in that: The laser positioning device includes a mechanical arm with multiple degrees of freedom, and a laser sensor provided at a tool end of the mechanical arm; The laser cleaning device includes a mechanical arm with multiple degrees of freedom and a laser cleaner arranged at the tool end of the mechanical arm; the width of the laser emitted by the laser cleaner during operation matches the model of the brake beam.

7. The brake beam cleaning system according to any one of claims 1 to 3, characterized in that: The execution component further includes: a dust removal device; The dust removal device is provided corresponding to the laser cleaning device and is used for absorbing dust generated by the laser cleaning device during operation.

8. The brake beam cleaning system according to claim 1, characterized in that: Also includes: Centering mechanism, the control mechanism is electrically connected to the centering mechanism; wherein, The centering mechanism is provided corresponding to the first area and is used for performing centering correction on the brake beam. After correction, the brake beam is axially symmetrically distributed along the central axis of the transmission mechanism.

9. The brake beam cleaning system according to claim 8, characterized in that: The centering mechanism includes an even number of retractable pneumatic centering devices; An even number of pneumatic centering devices are symmetrically arranged on both sides of the first area, and the pneumatic centering devices include: a driving member and a push plate; the output end of the driving member is connected to the push plate, and the push plate moves toward or away from the brake beam under the drive of the driving member.

10. The brake beam cleaning system according to claim 1, characterized in that: Also includes: Openable and closable box; When the box is closed, a closed space is formed inside the box; the second area and the cleaning mechanism are both arranged inside the box.

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