Special span-adjustable lifting appliance for machining urban rail train framework

Abstract

The utility model relates to the technical field of rail transit vehicle tools, and discloses a span-adjustable special lifting appliance for machining an urban rail train framework, which comprises a middle beam, a fixing plate is fixedly connected to the periphery of the middle beam, a first connecting buckle is rotatably connected to the top of the fixing plate, a first chain is mounted in the middle of the first connecting buckle, and a second chain is mounted in the middle of the second connecting buckle. A lifting ring is installed at one end of the chain, a connecting plate is slidably connected to the periphery of the middle beam, a second connecting buckle is rotatably connected to the bottom of the connecting plate, a second chain is installed in the middle of the second connecting buckle, and a telescopic mechanism is installed in the middle of the middle beam. According to the utility model, through the mutual cooperation of the middle beam, the hanging beam, the limiting holes, the limiting rods, the insertion holes, the fixing bolts, the positioning holes, the positioning rods, the connecting plates and the like, the length of the hanging beam can be adjusted in time according to the size of a framework needing to be hung, so that convenience is provided for hanging frameworks with different sizes, and the hanging efficiency is improved.

Description

A special lifting tool with adjustable span for processing urban rail train frames. Technical Field

[0001] This utility model relates to the field of rail transit vehicle equipment technology, and in particular to a special lifting tool with adjustable span for processing urban rail train frames. Background Technology

[0002] Specialized lifting tools for urban rail train frames enable flexible lifting of the frames. By coordinating multiple lifting points, the tools ensure uniform stress and stable posture of the frames during lifting, effectively preventing workpiece deformation. While ensuring the lifting accuracy and surface quality of large frames, they significantly improve production safety and overall production line efficiency.

[0003] Existing equipment typically consists of a lifting beam, connecting buckles, lifting rings, chains, and other structures. Multiple connecting buckles are fixed to the top and bottom of the lifting beam, and chains are installed in the middle of the connecting buckles. The chains connected to the top connecting buckles of the lifting beam are connected to the lifting rings, which are then connected to the lifting equipment. The chains connected to the bottom connecting buckles of the lifting beam are connected to the bogie frame, thereby achieving the lifting effect.

[0004] However, the length of the lifting beam is fixed and cannot be adjusted to accommodate different sizes of frames. This results in the need to change the lifting tool when different sizes of frames need to be lifted, which leads to reduced lifting efficiency, longer processing time, and increased costs. To address these issues, a special lifting tool with adjustable span for urban rail train frame processing is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a special lifting tool with adjustable span for processing urban rail train frames. It aims to improve the problem in the prior art where the length of the lifting beam is fixed, which makes it impossible to adjust in a timely manner according to the size of the frame to be lifted. This results in the need to change the corresponding size of the lifting tool when lifting frames of different sizes, thus reducing the lifting efficiency and increasing the cost.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A special lifting device with adjustable span for processing urban rail train frames includes a middle beam, a fixed plate fixedly connected to the outer periphery of the middle beam, a connecting buckle 1 rotatably connected to the top of the fixed plate, a chain 1 installed in the middle of the connecting buckle 1, a lifting ring installed at the end of the chain 1, a connecting plate slidably connected to the outer periphery of the middle beam, a connecting buckle 2 rotatably connected to the bottom of the connecting plate, a chain 2 installed in the middle of the connecting buckle 2, and a telescopic mechanism installed in the middle of the middle beam.

[0008] The telescopic mechanism includes an extension component and a limiting component. The extension component includes a lifting beam, which is slidably connected to the middle of the intermediate beam. A baffle is fixedly connected to the outer periphery of the lifting beam, and a handle is fixedly connected to the outer side of the lifting beam.

[0009] As a further description of the above technical solution:

[0010] The limiting component includes a limiting rod, which is slidably connected to the middle of the intermediate beam and the lifting beam. A limiting hole is opened in the middle of the lifting beam, and the limiting hole and the limiting rod are engaged with each other.

[0011] As a further description of the above technical solution:

[0012] The top of the limiting rod has an insertion hole, and a fixing bolt is slidably connected to the top of the limiting rod. The fixing bolt and the insertion hole are engaged with each other.

[0013] As a further description of the above technical solution:

[0014] Positioning holes are provided at the top of both the lifting beam and the intermediate beam;

[0015] As a further description of the above technical solution:

[0016] A slider is fixedly connected to the inner side of the connecting plate, and a limit plate is fixedly connected to the top of the intermediate beam.

[0017] As a further description of the above technical solution:

[0018] A positioning block is fixedly connected to the top of the connecting plate, and a positioning rod is slidably connected to the middle of the positioning block. The positioning rod and the positioning hole are engaged with each other.

[0019] As a further description of the above technical solution:

[0020] A spring is installed inside the positioning block, and a handle is fixedly connected to the top of the positioning rod.

[0021] As a further description of the above technical solution:

[0022] The outer sides of both the lifting beam and the intermediate beam are provided with sliding grooves.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the cooperation of the intermediate beam, lifting beam, limiting hole, limiting rod, insertion hole, fixing bolt, positioning hole, positioning rod, connecting plate and other structures enables the lifting beam to adjust its length in a timely manner according to the size of the frame to be lifted, thereby providing convenience for lifting frames of different sizes and improving lifting efficiency.

[0025] 2. In this utility model, the position of the lifting point is adjusted by the cooperation of the intermediate beam, lifting beam, connecting plate, slider, slide groove, positioning hole, positioning rod, spring, positioning block, handle and other structures, so that the span of the lifting point matches the structural features of the frame, ensuring uniform force and stable posture during the lifting process, and effectively preventing workpiece deformation. Attached Figure Description

[0026] Figure 1 is a three-dimensional schematic diagram of a special lifting tool with adjustable span for processing urban rail train frames proposed in this utility model;

[0027] Figure 2 is a schematic diagram of the limiting rod of a special lifting tool with adjustable span for processing urban rail train frame proposed in this utility model;

[0028] Figure 3 is a structural schematic diagram of the fixing plate of a special lifting tool with adjustable span for processing urban rail train frames proposed in this utility model;

[0029] Figure 4 is a cross-sectional schematic diagram of the connecting plate of a special lifting tool with adjustable span for processing urban rail train frames proposed in this utility model.

[0030] Figure 5 is a cross-sectional schematic diagram of the middle beam of a special lifting tool with adjustable span for processing urban rail train frames proposed in this utility model.

[0031] 1. Intermediate beam; 2. Fixing plate; 3. Connecting buckle one; 4. Chain one; 5. Lifting ring; 6. Lifting beam; 7. Connecting plate; 8. Connecting buckle two; 9. Chain two; 10. Limiting plate; 11. Limiting hole; 12. Limiting rod; 13. Insertion hole; 14. Fixing bolt; 15. Positioning hole; 16. Positioning rod; 17. Positioning block; 18. Spring; 19. Handle; 20. Slider; 21. Slide groove; 22. Baffle; 23. Handle. Detailed Implementation

[0032] 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.

[0033] Referring to Figures 1-5, one embodiment of this utility model is provided: a special lifting device with adjustable span for processing urban rail train frames, including a middle beam 1, a fixed plate 2 fixedly connected to the outer periphery of the middle beam 1, a connecting buckle 3 rotatably connected to the top of the fixed plate 2, a chain 4 installed in the middle of the connecting buckle 3, and a lifting ring 5 installed at the end of the chain 4. The middle beam 1 provides support for the fixed plate 2, allowing it to better connect with the connecting buckle 3, so that it can better connect with the chain 4. The chain 4 and the lifting ring 5 are connected, thereby connecting the middle beam 1 with the lifting equipment, making it easier for the lifting equipment to lift the frame;

[0034] A connecting plate 7 is slidably connected to the outer periphery of the intermediate beam 1. A connecting buckle 2 8 is rotatably connected to the bottom of the connecting plate 7. A chain 2 9 is installed in the middle of the connecting buckle 2 8. The intermediate beam 1 provides support for the connecting plate 7, allowing it to better support the connecting buckle 2 8 and ensure stable operation. The connecting buckle 2 8 and the chain 2 9 are connected, and the chain 2 9 connects the lifting device to the frame to be lifted, thus facilitating the lifting of the bogie frame by the hoisting equipment. A telescopic mechanism is installed in the middle of the intermediate beam 1. The telescopic mechanism allows the length of the lifting device to be adjusted in a timely manner according to the size of the bogie frame to be lifted, thus facilitating its lifting. The telescopic mechanism includes an extension component and a limiting component. The extension component includes a lifting beam 6, which is slidably connected to the middle of the intermediate beam 1. A baffle 22 is fixedly connected to the outer periphery of the lifting beam 6, and a handle 2 is fixedly connected to the outer side of the lifting beam 6. 3. The intermediate beam 1 provides support for the lifting beam 6, enabling its stable operation. The baffle 22 limits the connection plate 7. The handle 23 facilitates the adjustment of the length of the lifting beam 6. The limiting component includes a limiting rod 12, which is slidably connected to the middle of the intermediate beam 1 and the lifting beam 6. A limiting hole 11 is opened in the middle of the lifting beam 6. The limiting hole 11 and the limiting rod 12 are interlocked. The lifting beam 6 and the intermediate beam 1 provide support for the limiting rod 12, enabling its stable operation. The limiting rod 12 and the limiting hole 11 cooperate to lock the lifting beam 6, preventing displacement during operation and allowing the length of the lifting beam 6 to be adjusted. Through the cooperation of the various structures of the telescopic mechanism, the length of the lifting beam 6 can be adjusted in a timely manner according to the size of the bogie frame to be lifted, thus facilitating the lifting of the bogie frame.

[0035] Referring to Figures 2-4, the top of the limiting rod 12 has an insertion hole 13, and a fixing bolt 14 is slidably connected to the top of the limiting rod 12. The fixing bolt 14 and the insertion hole 13 are interlocked. The interlocking of the insertion hole 13 and the fixing bolt 14 prevents the limiting rod 12 from shifting or falling during operation, thus better securing the lifting beam 6. A slider 20 is fixedly connected to the inner side of the connecting plate 7. Slide grooves 21 are provided on the outer sides of both the lifting beam 6 and the intermediate beam 1. The slider 20 can move on the top of the lifting beam 6 and the intermediate beam 1 through the slide grooves 21, thereby allowing the connecting plate 7 to move on the top of the lifting beam 6 and the intermediate beam 1, thus adjusting the position of the lifting point. Positioning holes 15 are provided on the top of both the lifting beam 6 and the intermediate beam 1. The top of the intermediate beam 1 is fixedly connected to... A limiting plate 10 is provided, and a positioning block 17 is fixedly connected to the top of the connecting plate 7. A positioning rod 16 is slidably connected to the middle of the positioning block 17. The positioning rod 16 and the positioning hole 15 are engaged with each other. The positioning block 17 and the connecting plate 7 provide support for the positioning rod 16, enabling it to operate stably. The positioning rod 16 and the positioning hole 15 cooperate to lock the connecting plate 7, preventing displacement of the connecting plate 7 during operation. This allows the lifting device to lift the bogie frame more stably. A spring 18 is provided inside the positioning block 17, and a handle 19 is fixedly connected to the top of the positioning rod 16. The spring 18 allows the positioning rod 16 to return to its original position after movement. Pulling the handle 19 allows the positioning rod 16 to move, thereby releasing the lock on the connecting plate 7.

[0036] Working principle: In use, by fixing the lifting ring 5 to the lifting equipment, the lifting equipment drives the lifting ring 5 to move, the lifting ring 5 drives the chain 4 to move, the chain 4 drives the connecting buckle 3 to move, the connecting buckle 3 drives the fixing plate 2 to move, the fixing plate 2 drives the intermediate beam 1 to move, the intermediate beam 1 drives the lifting beam 6 and the connecting plate 7 to move, the connecting plate 7 drives the connecting buckle 8 to move, and the connecting buckle 8 drives the chain 9 to move, thereby lifting the bogie frame.

[0037] When the length of the lifting beam 6 needs to be adjusted, the fixing bolt 14 is pulled out of the limiting rod 12, which in turn pulls the limiting rod 12 out of the limiting hole 11, thereby releasing the locking of the lifting beam 6. At this time, the handle 19 is pulled to move the positioning rod 16 out of the positioning hole 15, thereby releasing the locking of the lifting beam 6. Then, the handle 23 is pulled to move the lifting beam 6 in the intermediate beam 1. When it reaches the designated position, the handle 23 and the handle 19 are released, and the spring 18 pushes the positioning rod 16 to reset, so that it engages with the positioning hole 15, thereby locking the lifting beam 6. At the same time, the limiting rod 12 is reinserted into the limiting hole 11, thereby locking the lifting beam 6 a second time, so that the lifting beam 6 will not shift when lifting the bogie frame.

[0038] When the position of the connecting plate 7 needs to be adjusted, the handle 19 can be pulled to disengage the positioning rod 16 from the positioning hole 15, thereby releasing the lock on the connecting plate 7. At this time, the connecting plate 7 can be pushed to move, and the connecting plate 7 drives the slider 20 to slide in the slide groove 21. At the same time, the connecting plate 7 drives the connecting buckle 2 8 and the chain 2 9 to move. When the connecting plate 7 reaches the designated position, the handle 19 can be released, and the spring 18 pushes the positioning rod 16 and the positioning hole 15 to engage, thereby fixing the connecting plate 7.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 special lifting tool with adjustable span for processing urban rail train frames, comprising a middle beam (1), characterized in that: A fixing plate (2) is fixedly connected to the outer periphery of the intermediate beam (1). A connecting buckle (3) is rotatably connected to the top of the fixing plate (2). A chain (4) is installed in the middle of the connecting buckle (3). A lifting ring (5) is installed at the end of the chain (4). A connecting plate (7) is slidably connected to the outer periphery of the intermediate beam (1). A connecting buckle (8) is rotatably connected to the bottom of the connecting plate (7). A chain (9) is installed in the middle of the connecting buckle (8). A telescopic mechanism is installed in the middle of the intermediate beam (1). The telescopic mechanism includes an extension component and a limiting component. The extension component includes a lifting beam (6). The lifting beam (6) is slidably connected to the middle of the intermediate beam (1). A baffle (22) is fixedly connected to the outer periphery of the lifting beam (6). A handle (23) is fixedly connected to the outer side of the lifting beam (6).

2. The adjustable span special lifting tool for processing urban rail train frames according to claim 1, characterized in that: The limiting component includes a limiting rod (12), which is slidably connected to the middle part of the intermediate beam (1) and the hanging beam (6). A limiting hole (11) is opened in the middle part of the hanging beam (6), and the limiting hole (11) and the limiting rod (12) are engaged with each other.

3. A special lifting tool with adjustable span for processing urban rail train frames according to claim 2, characterized in that: The limiting rod (12) has an insertion hole (13) at the top, and a fixing bolt (14) is slidably connected to the top of the limiting rod (12). The fixing bolt (14) and the insertion hole (13) are engaged with each other.

4. A special lifting tool with adjustable span for processing urban rail train frames according to claim 1, characterized in that: Positioning holes (15) are provided at the top of both the lifting beam (6) and the intermediate beam (1).

5. A special lifting tool with adjustable span for processing urban rail train frames according to claim 1, characterized in that: A slider (20) is fixedly connected to the inner side of the connecting plate (7), and a limit plate (10) is fixedly connected to the top of the intermediate beam (1).

6. A special lifting tool with adjustable span for processing urban rail train frames according to claim 4, characterized in that: The top of the connecting plate (7) is fixedly connected to a positioning block (17), and a positioning rod (16) is slidably connected to the middle of the positioning block (17). The positioning rod (16) and the positioning hole (15) are engaged with each other.

7. A special lifting tool with adjustable span for processing urban rail train frames according to claim 6, characterized in that: A spring (18) is provided inside the positioning block (17), and a handle (19) is fixedly connected to the top of the positioning rod (16).

8. A special lifting tool with adjustable span for processing urban rail train frames according to claim 5, characterized in that: The outer sides of both the lifting beam (6) and the intermediate beam (1) are provided with sliding grooves (21).

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