A bogie inspection line for initial and post-processes using a gantry robot

The application of gantry robots and multi-stage lifting devices has enabled automated operation of the bogie maintenance line, solving the problems of high labor intensity and low efficiency, and providing advantages in safety and space utilization.

CN122144438APending Publication Date: 2026-06-05JIANGSU SUSHENG AUTOMATION EQUIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU SUSHENG AUTOMATION EQUIP
Filing Date
2026-02-11
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies for bogie maintenance lines involve high labor intensity, low work efficiency, and safety hazards.

Method used

Gantry robots are used for bogie maintenance. Multi-stage lifting devices and gripper systems are used to automate the disassembly, assembly and cleaning of the bogies. The operation is carried out in conjunction with the longitudinal overhead track, which reduces space requirements.

Benefits of technology

It reduced labor intensity, improved work efficiency, reduced safety hazards, and provided additional buffer space in the renovation of old factory buildings.

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Abstract

The application discloses a bogie maintenance line for initial and later operations by a truss robot, characterized in that the maintenance area comprises a bogie intake line, a frame maintenance line, a bogie discharge line, a good wheelset intake station, an aerial longitudinal track and the truss robot; the bogie intake line comprises a disassembly station; the bogie discharge line comprises a wheel dropping station; the frame maintenance line comprises a final station; the truss robot comprises a gripper, a large trolley, a small trolley and a lifting device; the truss robot can separate the frame and the wheelset by grabbing the frame at the disassembly station, and place the frame with spare parts at an initial station; the truss robot can grab the wheelset at the good wheelset intake station and place it at the wheel dropping station, and then place the frame at the final station on the wheelset at the wheel dropping station; when the gripper is at the highest position, the highest position of the grabbed frame or wheelset is higher than the lowest position of the truss robot; and the main advantages are low labor intensity and high operation efficiency.
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Description

Technical Field

[0001] This invention belongs to the field of railway vehicle maintenance equipment technology, specifically a bogie maintenance line that uses a gantry robot for initial and later operations. Background Technology

[0002] Currently, in the early and late stages of bogie maintenance work at various railway depots or rolling stock plants, the operation of bogies mainly relies on manual pushing on the rails or overhead crane transport. The main disadvantages are: high labor intensity, low work efficiency, and safety hazards. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a bogie maintenance line that uses a gantry robot for initial and later operations, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: The maintenance area 2 of bogie 1 in a railway freight car depot and rolling stock plant includes a bogie receiving line 2A, a frame maintenance line 2B, a bogie exit line 2C, a good wheelset entry station 2D, an overhead longitudinal track 2X, and a gantry robot 3. The bogie 1 includes a frame 1A, wheelsets 1B, and components 1C. The bogie receiving line 2A includes a disassembly station 2A1 for disassembling the frame 1A and wheelsets 1B to be repaired. The bogie exit line 2C includes a wheel-dropping station 2C1 for assembling the good frame 1A and wheelsets 1B. The frame maintenance line 2B includes an initial station 2B1 for the frame 1A to be repaired to enter and a final station 2B2 for the good frame 1A to exit. The gantry robot 3 includes grippers 4, a main carriage 3B, a secondary carriage 3C, and... The lifting device 3D has grippers 4 that can grasp the frame 1A and wheelset 1B. The lifting device 3D is mounted on the trolley 3C, which can move laterally on the trolley 3B. The trolley 3B can move longitudinally on the longitudinal track 2X in the air. The gantry robot 3 can grasp the frame 1A at the disassembly station 2A1 to separate the frame 1A and wheelset 1B, and place the frame 1A, carrying the parts 1C, at the initial station 2B1. The gantry robot 3 can also grasp the wheelset 1B at the good wheelset entry station 2D and place it at the wheel drop station 2C1. Then, the frame 1A at the final station 2B2 is placed on the wheelset at the wheel drop station 2C1. When the gripper 4 is at its highest position, the highest position of the grasped frame 1A or wheelset 1B can be higher than the lowest position of the gantry robot 3.

[0005] As a further aspect of the present invention: the frame 1A includes an edge 1A1 connected to the core disk at the center of the top surface of the bolster, and the gripper 4 includes a frame gripper 4A capable of gripping the edge 1A1.

[0006] As a further aspect of the present invention: the maintenance area 2 includes a cleaning machine 2E, which includes a cleaning inlet 2E1 and a cleaning outlet 2E2. The gantry robot 3 can place the frame 1A of the disassembly station 2A1 at the cleaning inlet 2E1 and place the frame 1A of the cleaning outlet 2E2 at the initial station 2B1.

[0007] As a further aspect of the present invention: the wheelset 1B includes an inner arc 1B1 of the rim, and the gripper 4 includes a wheelset gripper 4B capable of gripping the inner arc 1B1 of the rim.

[0008] As a further aspect of the present invention: the wheelset gripper 4B includes a double wheelset gripper 4B2, through which the gantry robot 3 can grasp two wheelsets 1B at a time.

[0009] As a further aspect of the present invention: the maintenance area 2 includes a static load test bench 2F for factory-maintained bogies. The static load test bench 2F includes a test entrance 2F1 and a test exit 2F2. The gantry robot 3 can place the wheelset 1B of the good wheelset entry station 2D into the test entrance 2F1, and then place the frame 1A of the final station 2B2 on the wheelset 1B of the test entrance 2F1 to complete the wheel drop operation. The gantry robot 3 can grab the wheelset 1B of the test exit 2F2 and carry the entire bogie 1 back to the wheel drop station 2C1.

[0010] As a further aspect of the present invention: when the gripper 4 is in the highest position, the lowest position of the gripped frame 1A or wheel pair 1B can be higher than or equal to the lowest position of the gantry robot 3.

[0011] In summary, compared with the prior art, this invention uses a gantry robot, especially a multi-stage lifting device, which can make the lowest position of the grasped bogie the same height as the lowest position of the gantry robot, requiring only a very small space height. In the renovation of old factory buildings, a safety steel platform can be added, which can also serve as a buffer area for the bogie. The main advantages are: low labor intensity, high operation efficiency, and small footprint. Attached Figure Description

[0012] Figure 1This is a structural schematic diagram of the bogie receiving line 2A, frame maintenance line 2B, bogie exit line 2C, good wheelset entry station 2D, cleaning machine 2E, factory repair bogie static load test bench 2F, aerial longitudinal track 2X, and gantry robot 3 that make up the maintenance area 2 of bogie 1. It is also a structural schematic diagram of the disassembly station 2A1 that makes up the bogie receiving line 2A, a structural schematic diagram of the wheel dropping station 2C1 that makes up the bogie exit line 2C, a structural schematic diagram of the initial station 2B1 and the final station 2B2 that make up the frame maintenance line 2B, a structural schematic diagram of the cleaning inlet 2E1 and the cleaning outlet 2E2 that make up the cleaning machine 2E, and a structural schematic diagram of the test inlet 2F1 and the test outlet 2F2 that make up the factory repair bogie static load test bench 2F. Figure 2 yes Figure 1 The AA view is also a structural schematic diagram of the gripper 4, the large vehicle 3B, the small vehicle 3C and the lifting device 3D that make up the gantry robot 3. Figure 3 This is a structural schematic diagram of the frame 1A, wheelset 1B, and components 1C that make up the bogie 1; Figure 4 yes Figure 3 The K-direction view is a schematic diagram of the double wheelset gripper 4B2 structure that makes up the wheelset gripper 4B; Figure 5 yes Figure 3 The enlarged view at point I is also a structural schematic diagram of the inner rim arc 1B1 that makes up wheelset 1B, and a structural schematic diagram of the wheelset clamp 4B that makes up clamp 4. Figure 6 This is a structural schematic diagram of the flange 1A1 that makes up the frame 1A, and also a structural schematic diagram of the gripper 4A that makes up the gripper 4. Figure 7 This is another floor plan of maintenance area 2.

[0013] Bogie 1, Frame 1A, Edge 1A1, Wheelset 1B, Inner rim arc 1B1, Components 1C, Maintenance area 2, Bogie take-up line 2A, Disassembly station 2A1, Frame maintenance line 2B, Initial station 2B1, Final station 2B2, Bogie exit line 2C, Wheel drop station 2C1, Good wheelset entry station 2D, Washing machine 2E, Washing inlet 2E1, Washing outlet 2E2, Factory repair bogie static load test bench 2F, Test inlet 2F1, Test outlet 2F2, Aerial longitudinal track 2X, Gantry robot 3, Trolley 3B, Trolley 3C, Lifting device 3D, Gripper 4, Frame gripper 4A, Wheelset gripper 4B, Double wheelset gripper 4B2 Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0015] Please see Figures 1-7 In this embodiment of the invention, the maintenance area 2 of the bogie 1 in the railway freight car depot and rolling stock plant includes a bogie receiving line 2A, a frame maintenance line 2B, a bogie exit line 2C, a good wheelset entry station 2D, an overhead longitudinal track 2X, and a gantry robot 3. The bogie 1 includes a frame 1A, wheelsets 1B, and components 1C. The bogie receiving line 2A includes a disassembly station 2A1 for disassembling the frame 1A and wheelsets 1B to be repaired. The bogie exit line 2C includes a wheel-dropping station 2C1 for assembling the good frame 1A and wheelsets 1B. The frame maintenance line 2B includes an initial station 2B1 for the frame 1A to be repaired to enter and a final station 2B2 for the good frame 1A to exit. The gantry robot 3 includes a gripper 4, a trolley 3B, a carriage 3C, and a lifting device 3. D. The gripper 4, capable of grasping the frame 1A and wheelset 1B, is installed on the lifting device 3D. The lifting device 3D is installed on the trolley 3C. The trolley 3C can move laterally on the trolley 3B, and the trolley 3B can move longitudinally on the longitudinal track 2X in the air. The gantry robot 3 can grasp the frame 1A at the disassembly station 2A1 to separate the frame 1A and wheelset 1B, and place the frame 1A carrying the parts 1C at the initial station 2B1. The gantry robot 3 can grasp the wheelset 1B at the good wheelset entry station 2D and place it at the wheel drop station 2C1. Then, the frame 1A at the final station 2B2 is placed on the wheelset at the wheel drop station 2C1. When the gripper 4 is in the highest position, the highest position of the grasped frame 1A or wheelset 1B can be higher than the lowest position of the gantry robot 3.

[0016] The frame 1A includes an edge 1A1 connected to the core disk at the center of the top surface of the bolster, and the gripper 4 includes a frame gripper 4A capable of gripping the edge 1A1.

[0017] The maintenance area 2 includes a cleaning machine 2E, which includes a cleaning inlet 2E1 and a cleaning outlet 2E2. The gantry robot 3 can place the frame 1A of the disassembly station 2A1 at the cleaning inlet 2E1 and place the frame 1A of the cleaning outlet 2E2 at the initial station 2B1.

[0018] It should be noted that the gantry robot 3 can also place the structure 1A of the disassembly station 2A1 directly into the initial station 2B1.

[0019] It should be noted that the operations at disassembly station 2A1, cleaning inlet 2E1, cleaning outlet 2E2, and initial station 2B1 are all preliminary operations for the bogie maintenance line.

[0020] The wheelset 1B includes an inner arc 1B1 of the rim, and the gripper 4 includes a wheelset gripper 4B capable of gripping the inner arc 1B1 of the rim.

[0021] The wheelset gripper 4B includes a dual wheelset gripper 4B2, through which the gantry robot 3 can grip two wheelsets 1B at a time.

[0022] The maintenance area 2 includes a static load test bench 2F for bogies. The static load test bench 2F includes a test entrance 2F1 and a test exit 2F2. The gantry robot 3 can place the wheelset 1B of the good wheelset entry station 2D into the test entrance 2F1, and then place the frame 1A of the final station 2B2 on the wheelset 1B in the test entrance 2F1 to complete the wheel drop operation. The gantry robot 3 can grab the wheelset 1B of the test exit 2F2 and carry the entire bogie 1 back to the wheel drop station 2C1.

[0023] It should be noted that the operations at wheel drop station 2C1, final station 2B2, test entrance 2F1, and test exit 2F2 are all later-stage operations on the bogie maintenance line.

[0024] When the gripper 4 is in its highest position, the lowest position of the gripped frame 1A or wheel pair 1B can be higher than or equal to the lowest position of the gantry robot 3.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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 limitations on this invention. In this invention, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate medium. The specific meaning of the terms in this invention can be understood according to the specific circumstances.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bogie maintenance line using a gantry robot for initial and later operations, characterized in that: The maintenance area (2) of the bogie (1) in the railway freight car depot and rolling stock plant includes the bogie inbound line (2A), the frame maintenance line (2B), the bogie outbound line (2C), the good wheelset inbound station (2D), the overhead longitudinal track (2X), and the gantry robot (3). The bogie (1) includes the frame (1A), wheelset (1B), and components (1C). The bogie inbound line (2A) includes the frame (1A) and wheelset (1B) to be repaired. The disassembly station (2A1) for disassembly, the bogie branch line (2C) including the wheel-dropping station (2C1) for assembling good frames (1A) and good wheelsets (1B), the frame maintenance line (2B) including the initial station (2B1) for the frame to be repaired (1A) to enter and the final station (2B2) for the good frame (1A) to go offline; the gantry robot (3) includes a gripper (4), a trolley (3B), a carriage (3C) and a lifting device (3D), capable of gripping The grippers (4) that hold the frame (1A) and wheelset (1B) are installed on the lifting device (3D). The lifting device (3D) is installed on the trolley (3C). The trolley (3C) can move laterally on the trolley (3B). The trolley (3B) can move longitudinally on the longitudinal track (2X) in the air. The gantry robot (3) can grasp the frame (1A) at the disassembly station (2A1) to separate the frame (1A) and wheelset (1B) and then separate the frame (1A). The component (1C) is placed at the initial station (2B1); the gantry robot (3) can grab the wheelset (1B) of the good wheelset entry station (2D) and place it at the wheel drop station (2C1), and then place the frame (1A) of the final station (2B2) on the wheelset at the wheel drop station (2C1); when the gripper (4) is at the highest position, the highest position of the gripped frame (1A) or wheelset (1B) can be higher than the lowest position of the gantry robot (3).

2. A bogie maintenance line using a gantry robot for initial and later operations as described in claim 1, characterized in that: The frame (1A) includes an edge (1A1) connected to the core disk at the center of the top surface of the bolster, and the gripper (4) includes a frame gripper (4A) capable of gripping the edge (1A1).

3. A bogie maintenance line using a gantry robot for initial and later operations as described in claim 2, characterized in that: The maintenance area (2) includes a cleaning machine (2E), which includes a cleaning inlet (2E1) and a cleaning outlet (2E2). The gantry robot (3) can place the frame (1A) of the disassembly station (2A1) at the cleaning inlet (2E1) and place the frame (1A) of the cleaning outlet (2E2) at the initial station (2B1).

4. A bogie maintenance line using a gantry robot for initial and later operations according to claim 3, characterized in that: The wheelset (1B) includes an inner arc of the rim (1B1), and the gripper (4) includes a wheelset gripper (4B) capable of gripping the inner arc of the rim (1B1).

5. A bogie maintenance line using a gantry robot for initial and later operations according to claim 4, characterized in that: The wheelset gripper (4B) includes a double wheelset gripper (4B2), through which the gantry robot (3) can grip two wheelsets (1B) at once.

6. A bogie maintenance line using a gantry robot for initial and later operations according to claim 5, characterized in that: The maintenance area (2) includes a bogie static load test bench (2F). The bogie static load test bench (2F) includes a test entrance (2F1) and a test exit (2F2). The gantry robot (3) can place the wheelset (1B) of the good wheelset entry station (2D) at the test entrance (2F1), and then place the frame (1A) of the final station (2B2) on the wheelset (1B) at the test entrance (2F1) to complete the wheel drop operation. The gantry robot (3) can grab the wheelset (1B) at the test exit (2F2) and carry the entire bogie (1) back to the wheel drop station (2C1).

7. A bogie maintenance line using a gantry robot for initial and later operations according to claim 6, characterized in that: When the gripper (4) is in its highest position, the lowest position of the gripped frame (1A) or wheel pair (1B) can be higher than or equal to the lowest position of the gantry robot (3).