Lifting structure for motor train unit maintenance
By designing a lifting structure for EMU maintenance with components including hydraulic push rods, racks, articulated seats and springs, the problems of poor stability of traditional lifting methods and easy deviation of EMUs are solved, and safe and stable lifting and long-term support are achieved.
Patent Information
- Application Number
- CN202420838853.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The traditional EMU lifting method uses multiple separate lifting devices, which has poor stability and cannot effectively ensure the safety of the lifting process. Moreover, the EMU is easily deviated due to external vibration during the lifting process, and the stability cannot be guaranteed during long-term support.
A lifting structure for maintenance of EMUs is designed, including supporting table, hydraulic push rod, rack, support plate, hinge seat and spring. The hydraulic push rod drives the support plate to move, drive the rack and gear to rotate, change the inclination angle of the hinge seat, enhance support, and achieve limit and reset of the EMUs through springs and baffles.
The stable rise of the EMU during the lifting process is achieved, the safety of the lifting process is ensured, the possibility of accidents is reduced, the EMU prevents the EMU from deviating due to external vibrations, and the stability of long-term support is ensured.
Smart Images
Figure CN222886655U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of EMU maintenance, and particularly relates to a lifting structure for EMU maintenance. Background Art
[0002] In order to ensure the safe operation of the EMU, it is often necessary to perform maintenance on it at regular intervals, and the EMU needs to be lifted during the maintenance process.
[0003] The traditional lifting method of the EMU often uses multiple single lifting devices to lift it. The stability of a single lifting device is poor, and it cannot effectively ensure the safety of the lifting process. Moreover, during the lifting process, the EMU will shift due to the vibration generated by the outside world and cannot ensure its stability during long-term support. To solve the above problems, there is an urgent need for a lifting structure for EMU maintenance to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a lifting structure for EMU maintenance to solve the problems that the traditional lifting method of the EMU often uses multiple single lifting devices to lift it, the stability of a single lifting device is poor, it cannot effectively ensure the safety of the lifting process, and during the lifting process, the EMU will shift due to the vibration generated by the outside world and cannot ensure its stability during long-term support.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a lifting structure for EMU maintenance, including a support table, racks are slidably connected to both sides of the support table, hydraulic push rods are arranged on both sides of the support table, the output ends of the hydraulic push rods are fixedly connected with support plates, the top ends of the racks are fixedly connected with the support plates, a support assembly is arranged on the top surface of the support table, and a fixing assembly is arranged on the top surface of the support plate.
[0006] As a further description of the above technical scheme:
[0007] The support assembly includes a hinge seat, the hinge seat is slidably connected through a groove opened on the support table, and a connecting rod is hinged on the top surface of the hinge seat.
[0008] As a further description of the above technical scheme:
[0009] The other end of the connecting rod is hinged to the bottom surface of the support plate, and the hinge seat is threadedly connected with a first threaded rod through a threaded hole opened thereon, and the threads at both ends of the first threaded rod are opposite.
[0010] As a further description of the above technical scheme:
[0011] Both ends of the first threaded rod are fixedly connected with gears, and the gears are engaged with the rack. The first threaded rod is rotationally connected to the support platform through a through hole opened thereon.
[0012] As a further description of the above technical solution:
[0013] The fixing component includes a mounting seat. The bottom end of the mounting seat is fixedly connected to the support plate. A second threaded rod is threadedly connected to the mounting seat through a threaded hole opened therein. One end of the second threaded rod is rotationally connected to a first baffle.
[0014] As a further description of the above technical solution:
[0015] The first baffle is slidably connected to the support plate through a through hole opened thereon. A spring is fixedly connected to one side of the first baffle. The other end of the spring is fixedly connected to a second baffle. The second baffle is slidably connected to the support plate through a through hole opened thereon.
[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:
[0017] 1. In the present utility model, by arranging a connecting rod therein, when lifting, the hydraulic push rod is started. The output end of the hydraulic push rod moves to drive the support plate to move. The movement of the support plate drives the rack to move. The movement of the rack drives the gear to move, thereby driving the first threaded rod to rotate. At the same time, the first threaded rod drives the hinge seat to move, so as to support by changing the inclination angle of the connecting rod. Through this design, the support of the support plate is enhanced, enabling it to rise stably during lifting, thus ensuring the safety of the lifting process and reducing the possibility of accidents during lifting, thereby avoiding harm to the staff.
[0018] 2. In the present utility model, by arranging a second baffle therein, when the support plate contacts the train set, the second threaded rod is rotated to drive the first baffle to move, thereby driving the second baffle to contact the train set and compressing the spring. When vibrations occur or the train set deviates, the second baffle is squeezed and reset through the spring, so as to reset the train set. Through this design, the limitation of the train set is realized, preventing it from deviating due to external influences, thus ensuring stable operation of the lifting and enabling long-term support for the staff to conduct inspections and repairs. Description of the Drawings
[0019] Figure 1 It is a three-dimensional structure schematic diagram of a lifting structure for EMU maintenance.
[0020] Figure 2 It is an exploded three-dimensional structure schematic diagram of a lifting structure for EMU maintenance.
[0021] Figure 3 It is an exploded three-dimensional structural schematic diagram of a support component in a lifting structure for EMU maintenance.
[0022] Figure 4 It is an exploded three-dimensional structural schematic diagram of a fixing component in a lifting structure for EMU maintenance.
[0023] Legend:
[0024] 1. Hydraulic push rod; 2. Rack; 3. Support platform; 4. Support component; 41. Gear; 42. First threaded rod; 43. Hinge seat; 44. Connecting rod; 5. Support plate; 6. Fixing component; 61. Second baffle; 62. Spring; 63. First baffle; 64. Mounting seat; 65. Second threaded rod. Specific implementation manners
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] Please refer to Figures 1-4 , the present invention provides a technical solution: a lifting structure for EMU maintenance, including a support platform 3, on both sides of the support platform 3 there are slidingly connected racks 2, on both sides of the support platform 3 there are hydraulic push rods 1, the output end of the hydraulic push rod 1 is fixedly connected with a support plate 5, the top end of the rack 2 is fixedly connected with the support plate 5, on the top surface of the support platform 3 there is a support component 4, and on the top surface of the support plate 5 there is a fixing component 6;
[0027] The support component 4 includes a hinge seat 43, the hinge seat 43 is slidably connected through a groove opened in the support platform 3, on the top surface of the hinge seat 43 there is a hinged connecting rod 44, the other end of the connecting rod 44 is hinged to the bottom surface of the support plate 5, the hinge seat 43 is threadedly connected with a first threaded rod 42 through a threaded hole opened therein, the threads at both ends of the first threaded rod 42 are opposite, both ends of the first threaded rod 42 are fixedly connected with gears 41, the gears 41 are engaged with the racks 2, and the first threaded rod 42 is rotatably connected through a through hole opened in the support platform 3;
[0028] The specific implementation method is as follows: When lifting, the hydraulic push rod 1 is started, and the movement of the output end of the hydraulic push rod 1 drives the support plate 5 to move. The movement of the support plate 5 drives the rack 2 to move. The movement of the rack 2 drives the gear 41 to move, thereby driving the first threaded rod 42 to rotate. At the same time, the first threaded rod 42 drives the hinge seat 43 to move, so as to obtain support by changing the inclination angle of the connecting rod 44.
[0029] The fixing component 6 includes a mounting seat 64. The bottom end of the mounting seat 64 is fixedly connected to the support plate 5. The mounting seat 64 is threadedly connected with a second threaded rod 65 through a threaded hole opened therein. One end of the second threaded rod 65 is rotatably connected to a first baffle 63. The first baffle 63 is slidably connected to the support plate 5 through a through hole opened therein. A spring 62 is fixedly connected to one side of the first baffle 63. The other end of the spring 62 is fixedly connected to a second baffle 61. The second baffle 61 is slidably connected to the support plate 5 through a through hole opened therein.
[0030] The specific implementation method is as follows: When the support plate 5 contacts the vehicle group, the first baffle 63 is driven to move by rotating the second threaded rod 65, so as to drive the second baffle 61 to contact the vehicle group and compress the spring 62. When vibration occurs or the vehicle group deviates, the second baffle 61 is squeezed, so that it is reset through the spring 62, thereby resetting the vehicle group.
[0031] Working principle: When lifting, the hydraulic push rod 1 is started, and the movement of the output end of the hydraulic push rod 1 drives the support plate 5 to move. When the support plate 5 contacts the vehicle group, the first baffle 63 is driven to move by rotating the second threaded rod 65, so as to drive the second baffle 61 to contact the vehicle group and compress the spring 62. When vibration occurs or the vehicle group deviates, the second baffle 61 is squeezed, so that it is reset through the spring 62, thereby resetting the vehicle group. At the same time, the movement of the support plate 5 drives the rack 2 to move. The movement of the rack 2 drives the gear 41 to move, thereby driving the first threaded rod 42 to rotate. At the same time, the first threaded rod 42 drives the hinge seat 43 to move, so as to obtain support by changing the inclination angle of the connecting rod 44.
[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A lifting structure for EMU maintenance, comprising a support platform (3), characterized in that: The support platform (3) is slidably connected with racks (2) on both sides, the support platform (3) is provided with hydraulic push rods (1) on both sides, the output end of the hydraulic push rod (1) is fixedly connected with a support plate (5), the top end of the rack (2) is fixedly connected to the support plate (5), the top surface of the support platform (3) is provided with a support component (4), and the top surface of the support plate (5) is provided with a fixing component (6).
2. A lifting structure for EMU maintenance according to claim 1, characterized in that: The support assembly (4) comprises an articulated seat (43), the articulated seat (43) being slidably connected to the support platform (3) via a groove provided on the support platform, and a connecting rod (44) being articulated on the top surface of the articulated seat (43).
3. A lifting structure for EMU maintenance according to claim 2, characterized in that: The other end of the connecting rod (44) is hinged to the bottom surface of the support plate (5), and the hinge seat (43) is threadedly connected to the first threaded rod (42) through the threaded hole provided therein, and the threads at both ends of the first threaded rod (42) are opposite.
4. A lifting structure for EMU maintenance according to claim 3, characterized in that: Gears (41) are fixedly connected to both ends of the first threaded rod (42), the gear (41) is meshed with the rack (2), and the first threaded rod (42) is rotatably connected to the support platform (3) through a through hole provided on the support platform (3).
5. The lifting structure for EMU maintenance according to claim 4 is characterized in that: The fixing assembly (6) comprises a mounting seat (64), the bottom end of which is fixedly connected to the support plate (5), the mounting seat (64) being threadedly connected to a second threaded rod (65) through a threaded hole provided therein, and one end of the second threaded rod (65) being rotatably connected to the first baffle (63).
6. The lifting structure for EMU maintenance according to claim 5, characterized in that: The first baffle plate (63) is slidably connected to the support plate (5) via a through hole provided therein; a spring (62) is fixedly connected to one side of the first baffle plate (63); the other end of the spring (62) is fixedly connected to the second baffle plate (61); and the second baffle plate (61) is slidably connected to the support plate (5) via a through hole provided therein.