Fracturing device for hinge on lower side door of open wagon of railway wagon
The equipment housing structure, which combines electromagnetic heating and a hydraulic press, solves the problem of irregular shapes after the hinges of the lower side doors of open railway freight cars break. It enables regular cutting and heating of iron bars, simplifies subsequent processing, and improves processing efficiency.
Patent Information
- Application Number
- CN202423310977.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies for processing the lower side door hinges of railway freight cars result in irregular shapes after breakage, which is inconvenient for subsequent processing. Furthermore, traditional methods require heating followed by stamping, leading to low efficiency.
The equipment uses an enclosure structure that combines an electromagnetic heater, a hydraulic press, and multiple motors. The hydraulic press extrusion and electromagnetic heating ensure the regular shape of the iron bars, and the lifting and cutting mechanisms enable automated cutting and heating, improving processing efficiency.
This technology enables the standardized cutting and heating of iron bars, simplifies subsequent processing, and improves processing efficiency and product quality.
Smart Images

Figure CN223655833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of open wagon hinge technology, specifically to a hinge mechanism for the lower side door of an open railway freight car. Background Technology
[0002] Open wagons are a type of railway freight car characterized by their open roof and four-sided side panels, two of which have fold-down side doors for easy unloading. This type of wagon is primarily used for transporting bulk goods such as coal or ballast that are not susceptible to weathering. Open wagons are mainly used for transporting bulk goods such as coal, ore, mining and construction materials, timber, and steel, and can also be used to transport lighter machinery. By covering the loaded cargo with waterproof tarpaulins or other coverings, they can replace covered wagons for transporting goods sensitive to rain. Therefore, open wagons are highly versatile and constitute the largest number of freight cars, with approximately 300,000 nationwide, accounting for more than 50% of all freight cars.
[0003] Processing the lower side door hinges of a convertible requires first processing a sheet of iron into short strips. The existing processing method involves measuring the iron sheet into equal sections before cutting it, which is quite cumbersome.
[0004] The hinge-breaking device for the lower side door of an open wagon in rail transit freight cars disclosed in Chinese Utility Model Patent Application Publication CN211162202U, although simple in structure and semi-automatic, capable of processing iron sheets into short strips and directly dropping them into the cargo car, thus improving work efficiency, is relatively simple in actual use. It can only break the iron sheet and cannot facilitate subsequent processing. After cutting, the broken part will be uneven. Traditional hinge-breaking methods also require heating the hinge and then stamping it with a hydraulic press. Therefore, a utility model is proposed to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a hinged device for the lower side door of railway freight cars, which solves the problems of irregular shapes after breaking and inconvenience in subsequent processing.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a hinged lower side door of an open railway freight car, comprising an equipment housing, an electromagnetic heater snapped into the inner side of the equipment housing, a drive motor snapped into the interior of the equipment housing, a threaded column inserted into the interior of the drive motor, a movable bracket sleeved on the outer surface of the threaded column, a lifting motor snapped into the interior of the movable bracket, a lifting column inserted into the interior of the lifting motor, a lifting cylinder sleeved on the outer surface of the lifting column, a clamping plate on the upper surface of the lifting cylinder, a side hydraulic press on one side of the equipment housing, a side hydraulic rod inserted into the interior of the side hydraulic press, a side extrusion plate at one end of the side hydraulic rod, a surface hydraulic press snapped into the upper surface of the equipment housing, a lifting hydraulic rod inserted into the interior of the surface hydraulic press, and a lifting extrusion plate on the lower surface of the lifting hydraulic rod.
[0009] Optionally, one end of the equipment housing is provided with a sliding groove, and the upper surface of the equipment housing is provided with a pushing groove.
[0010] Optionally, the number of drive motors is two, the number of threaded posts is two, and the drive motors and threaded posts are mutually compatible.
[0011] Optionally, a lower cutting groove is provided on the other side of the equipment housing.
[0012] Optionally, a compression spring is fitted onto the outer surface of the lower cutting groove, and a cutting frame is fitted onto one end of the lower cutting groove.
[0013] Optionally, a moving motor is internally engaged with the cutting frame, and a moving turntable is inserted into the upper surface of the moving motor.
[0014] Optionally, a driver is snapped onto one side of the device housing.
[0015] Optionally, a cutting motor is internally connected to the cutting frame, a control column is internally connected to the cutting motor, and a cutting blade is sleeved on the outer surface of the control column.
[0016] In summary, the technical effects and advantages of this utility model are as follows:
[0017] 1. This utility model has a reasonable structure. The surface hydraulic press controls the lifting hydraulic rod to squeeze the short iron bar through the lifting extrusion plate. The side hydraulic presses control the side hydraulic rods to squeeze the short iron bar through the side extrusion plates. The short iron bar enters the electromagnetic heater for heating. The lifting motor rotates the lifting column to raise the lifting cylinder and the clamping plate. The drive motor rotates the threaded column to move the moving bracket, causing the short iron bar to slide down the slide. The moving motor rotates the moving turntable to control the movement of the long iron bar. The cutting motor rotates the control column to lower the cutting blade to cut the long iron bar. The lower cutting groove assists in cutting. The compression spring returns the lower cutting groove to its original position.
[0018] 2. In this utility model, the structure of lifting cylinder, cutting blade and compression spring greatly enhances the use effect of the equipment. It can not only ensure the cutting effect of long iron bars, but also return and heat the irregular position of short iron bars, thus greatly facilitating the workers to carry out subsequent processing. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is an exploded view of the internal structure of the components inside the equipment housing of this utility model;
[0021] Figure 3 This is an exploded view of the overall connection structure of the device of this utility model;
[0022] Figure 4 This is an exploded view of the structure of the parts on the surface of the equipment housing of this utility model.
[0023] In the diagram: 1. Equipment housing; 2. Electromagnetic heater; 3. Drive motor; 4. Threaded column; 5. Moving bracket; 6. Lifting motor; 7. Lifting column; 8. Lifting cylinder; 9. Pallet; 10. Side hydraulic press; 11. Side hydraulic rod; 12. Side extrusion plate; 13. Surface hydraulic press; 14. Lifting hydraulic rod; 15. Lifting extrusion plate; 16. Lower cutting groove; 17. Extrusion spring; 18. Cutting frame; 19. Moving motor; 20. Moving turntable; 21. Driver; 22. Cutting motor; 23. Control column; 24. Cutting blade. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example: Reference Figures 1-4The illustrated railway freight car open side door hinged hinge includes an equipment box 1. An electromagnetic heater 2 is snapped into the inside of the equipment box 1. A drive motor 3 is snapped into the inside of the equipment box 1. A threaded post 4 is inserted into the inside of the drive motor 3. A movable bracket 5 is sleeved on the outer surface of the threaded post 4. A lifting motor 6 is snapped into the inside of the movable bracket 5. A lifting column 7 is inserted into the inside of the lifting motor 6. A lifting cylinder 8 is sleeved on the outer surface of the lifting column 7. A clamping plate 9 is provided on the upper surface of the lifting cylinder 8. A side hydraulic press 10 is provided on one side of the equipment box 1. A side hydraulic rod 11 is inserted into the inside of the side hydraulic press 10. A side extrusion plate 12 is provided at one end of the side hydraulic rod 11. A surface hydraulic press 13 is snapped into the upper surface of the equipment box 1. A lifting hydraulic rod 14 is inserted into the inside of the surface hydraulic press 13. A lifting extrusion plate 15 is provided on the lower surface of the lifting hydraulic rod 14.
[0026] As a preferred embodiment of this example, Figure 2 and Figure 4 As shown, an electromagnetic heater 2 is snapped into the inner side of the equipment housing 1. A drive motor 3 is snapped into the inside of the equipment housing 1. A threaded column 4 is inserted into the inside of the drive motor 3. A movable bracket 5 is sleeved on the outer surface of the threaded column 4. A lifting motor 6 is snapped into the inside of the movable bracket 5. A lifting column 7 is inserted into the inside of the lifting motor 6. A lifting cylinder 8 is sleeved on the outer surface of the lifting column 7. A clamping plate 9 is provided on the upper surface of the lifting cylinder 8. A side hydraulic press 10 is provided on one side of the equipment housing 1. A side hydraulic rod 11 is inserted into the inside of the side hydraulic press 10. A side extrusion plate 12 is provided at one end of the side hydraulic rod 11. A surface hydraulic press 13 is snapped into the upper surface of the equipment housing 1. A lifting hydraulic rod 14 is inserted into the inside of the surface hydraulic press 13. A lifting extrusion plate 15 is provided on the lower surface of the lifting hydraulic rod 14. A sliding groove is provided at one end of the equipment housing 1. A pushing groove is opened on the upper surface of the equipment housing 1. There are two drive motors 3 and two threaded columns 4. Between the drive motors 3 and the threaded columns 4 The equipment housing 1 is mutually compatible. On the other side, there is a lower cutting groove 16. On one side of the equipment housing 1, there is a driver 21. During use, when the short iron bar is cut off, the surface hydraulic press 13 controls the lifting hydraulic rod 14 to press the irregular positions on the top and bottom of the short iron bar through the lifting extrusion plate 15. The irregular positions on both sides are pressed by the side hydraulic press 10 controlling the side hydraulic rod 11 to press the side extrusion plate 12, thereby ensuring that the short iron bar is in the shape of a cuboid. Then, the long iron bar pushes one side of the short iron bar into the electromagnetic heater 2 for heating. The long iron bar then moves back a bit. When one end of the short iron bar is red-hot, the lifting motor 6 rotates the lifting column 7 to raise the lifting cylinder 8 and the clamping plate 9. The clamping plate 9 rests against the tail of the short iron bar. The drive motor 3 at the bottom rotates the threaded column 4 to move the moving bracket 5. The movement of the moving bracket 5 causes the clamping plate 9 to push the short iron bar, making it slide down the slide groove, thus facilitating subsequent processing.
[0027] like Figure 1 and Figure 3 As shown, in this embodiment, a compression spring 17 is sleeved on the outer surface of the lower cutting groove 16, a cutting frame 18 is sleeved on one end of the lower cutting groove 16, a moving motor 19 is snapped into the inside of the cutting frame 18, a moving turntable 20 is inserted into the upper surface of the moving motor 19, a cutting motor 22 is snapped into the inside of the cutting frame 18, a control column 23 is inserted into the inside of the cutting motor 22, and a cutting blade 24 is sleeved on the outer surface of the control column 23. During use, a long iron bar needs to be placed inside the cutting frame 18, and the long iron bar is moved by rotating the moving turntable 20 through the moving motor 19. When the long iron bar moves forward by one length, the cutting blade 24 is lowered by rotating the control column 23 through the cutting motor 22 to cut the long iron bar. At this time, the lower cutting groove 16 at the bottom works together with the cutting blade 24 to cut the iron bar, and the compression spring 17 controls the lower cutting groove 16 to return to its original position.
[0028] The working principle of this practical application is as follows:
[0029] During use, after the short iron bar is cut off, the surface hydraulic press 13 controls the lifting hydraulic rod 14 to press the irregular positions on the top and bottom of the short iron bar through the lifting extrusion plate 15. The irregular positions on the sides are pressed by the side hydraulic press 10 controlling the side hydraulic rod 11 to press the side extrusion plate 12, thus ensuring that the short iron bar is in the shape of a cuboid. Then, the long iron bar pushes one side of the short iron bar into the electromagnetic heater 2 for heating. The long iron bar then moves back a bit. When one end of the short iron bar is red-hot, the lifting motor 6 rotates the lifting column 7 to raise the lifting cylinder 8 and the clamping plate 9. The clamping plate 9 rests against the tail of the short iron bar. The bottom drive motor 3 rotates the threaded column 4 to move the moving bracket 5. The movement of the moving bracket 5 causes the clamping plate 9 to push the short iron bar, making it slide down the chute, thus facilitating subsequent processing. The long iron bar needs to be placed inside the cutting frame 18. The moving motor 19 rotates the moving turntable 20 to control the movement of the long iron bar. When the long iron bar moves forward by one length, the cutting motor 22 rotates the control column 23 to make the cutting blade 24 descend to cut the long iron bar. At this time, the bottom cutting groove 16 works with the cutting blade 24 to cut the iron bar. The compression spring 17 controls the bottom cutting groove 16 to return to its original position, which greatly enhances the use effect of the equipment. It can not only ensure the cutting effect of the long iron bar, but also return the irregular position of the short iron bar and heat it, thus greatly facilitating the workers to perform subsequent processing.
[0030] All electrical components mentioned in this article are connected to an external ULN2003 main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer for control.
[0031] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hinged lower side door of an open railway freight car, including an equipment housing (1), characterized in that: An electromagnetic heater (2) is attached to the inside of the equipment housing (1). A drive motor (3) is attached to the inside of the equipment housing (1). A threaded column (4) is inserted into the inside of the drive motor (3). A movable bracket (5) is sleeved on the outer surface of the threaded column (4). A lifting motor (6) is attached to the inside of the movable bracket (5). A lifting column (7) is inserted into the inside of the lifting motor (6). A lifting cylinder (8) is sleeved on the outer surface of the lifting column (7). A clamping plate (9) is provided on the upper surface of the lifting cylinder (8). A side hydraulic press (10) is provided on one side of the equipment housing (1). A side hydraulic rod (11) is inserted into the inside of the side hydraulic press (10). A side extrusion plate (12) is provided at one end of the side hydraulic rod (11). A surface hydraulic press (13) is attached to the upper surface of the equipment housing (1). A lifting hydraulic rod (14) is inserted into the inside of the surface hydraulic press (13). A lifting extrusion plate (15) is provided on the lower surface of the lifting hydraulic rod (14).
2. The hinged door folding mechanism for the open side door of a railway freight car according to claim 1, characterized in that: The equipment housing (1) has a sliding groove at one end and a pushing groove on the upper surface of the equipment housing (1).
3. The hinged hinge mechanism for the lower side door of an open railway freight car according to claim 1, characterized in that: The number of drive motors (3) is two, the number of threaded columns (4) is two, and the drive motors (3) and threaded columns (4) are mutually compatible.
4. The hinged door folding mechanism for the open side door of a railway freight car according to claim 1, characterized in that: The other side of the equipment housing (1) is provided with a lower cut groove (16).
5. The hinged hinge mechanism for the lower side door of an open railway freight car according to claim 4, characterized in that: A compression spring (17) is sleeved on the outer surface of the lower cutting groove (16), and a cutting frame (18) is sleeved on one end of the lower cutting groove (16).
6. The hinged door folding mechanism for the open side door of a railway freight car according to claim 5, characterized in that: The cutting frame (18) is internally fitted with a moving motor (19), and a moving turntable (20) is inserted into the upper surface of the moving motor (19).
7. The hinged door folding mechanism for the open side door of a railway freight car according to claim 1, characterized in that: A driver (21) is snapped onto one side of the device housing (1).
8. The hinged door folding device for the open side door of a railway freight car according to claim 5, characterized in that: The cutting frame (18) is fitted with a cutting motor (22), the cutting motor (22) is fitted with a control column (23), and the outer surface of the control column (23) is fitted with a cutting blade (24).
Citation Information
Patent Citations
Rail transit truck gondola car lower side door hinge breaking device
CN211162202U