Device for conveniently disassembling and assembling primary spring of subway train bogie

Abstract

The utility model relates to the technical field of subway train maintenance, and discloses a device for conveniently disassembling and assembling a primary spring of a subway train bogie, which comprises a disassembling and assembling vehicle, a lifting tray, a lifting mechanism and a manual self-locking winch, a lifting adjusting tray is arranged on the disassembling and assembling vehicle in a sliding mode, a spring is placed on the lifting adjusting tray, a lifting mechanism is arranged on the front face of the disassembling and assembling vehicle from bottom to top, the edge of the back face of the lifting adjusting tray is connected with a structure on the lifting mechanism, and a manual self-locking winch is installed on the front face, close to the top, of the disassembling and assembling vehicle. The device for conveniently disassembling and assembling the primary spring of the subway train bogie solves the problems that in the prior art, in the overhaul process of a long train frame, the primary spring is lifted and inserted into the bogie from the bottom of a train, due to the weight of the primary spring, disassembling and assembling are difficult, existing production requirements cannot be met according to original maintenance means, and the production cost is low. And meanwhile, certain potential safety hazards exist.

Description

Technical Field

[0001] The utility model relates to the technical field of subway train maintenance, in particular to a device for facilitating the disassembly and assembly of a tie spring for a subway train bogie. Background Art

[0002] With the rapid development of subways, the increase in the operating speed of new lines, and the short train spacing, the stability and reliability of the subway train running system have been severely challenged. Among them, the bogie primary spring is a more important component of the running gear. It mainly supports the load of the bogie and the subway train body, alleviates vibration and impact, and improves the comfort of vehicle operation.

[0003] The primary spring is also responsible for the transmission of longitudinal and lateral forces, which is beneficial for the bogie to safely pass through irregular tracks. Its reliability is particularly important. Therefore, the quality requirements for the primary spring operation during the overhaul of the train frame are very high. In the existing technology, during the overhaul of the long train frame, the primary spring is lifted from the bottom of the train and inserted into the bogie. Due to the weight of the primary spring itself and other reasons, it is difficult to disassemble and install. The original maintenance methods can no longer meet the existing production needs, and there are certain safety hazards. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for facilitating the disassembly and assembly of a spring tie of a subway train bogie, thereby solving the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a device for facilitating the disassembly and assembly of a subway train bogie spring, comprising: a disassembly and assembly vehicle, a lifting tray, a lifting mechanism and a manual self-locking winch;

[0006] A lifting tray is slidably provided on the disassembling and assembling vehicle, a spring is placed on the lifting tray, a lifting mechanism is provided on the front of the disassembling and assembling vehicle from the bottom upward, the edge of the back side of the lifting tray is connected to the structure on the lifting mechanism, a manual self-locking winch is installed on the front side of the disassembling and assembling vehicle near the top, and the structure on the top of the lifting mechanism is linked to the internal structure of the manual self-locking winch.

[0007] Preferably, the overall frame of the disassembling and assembling vehicle is formed by welding steel pipes.

[0008] Preferably, the disassembly and assembly vehicle includes a chassis, a frame is welded to the top of the chassis near the front end, a support frame is welded to the top of the chassis near the rear end, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod are welded to the surface of the support frame in sequence from bottom to top, a slide is installed on the front side of the support frame near the bottom, and the lifting pallet is slidably connected to the slide.

[0009] Preferably, the structure on the lifting mechanism is respectively installed with the first connecting rod, the second connecting rod and the third connecting rod, the manual self-locking winch is installed on the third connecting rod, and a hand push frame is welded on the back of the fourth connecting rod.

[0010] Preferably, a rubber pad is installed on the top of the frame, the rubber pad is overlapped with the bottom of the lifting tray, rollers are installed on the side of the frame close to the bottom, an extension rod is welded to the bottom of the first connecting rod, and a universal wheel is installed on the bottom of the extension rod.

[0011] Preferably, the lifting pallet includes a bracket, which is a frame structure formed by welding steel pipes as a whole. Sliding sleeves are installed on the back edges of the bracket near both sides, and a positioning groove for connecting to the upper structure of the lifting mechanism is provided in the middle of the back edge of the bracket.

[0012] Preferably, four groups of fine-tuning frames are welded in a ring shape at the bottom of the bracket, a bottom support is overlapped on the top of the fine-tuning frame, the bottom support is located inside the frame of the bracket, a knob is screwed on the bottom of the bottom support, and the knob is screwed to the fine-tuning frame.

[0013] Preferably, the lifting mechanism includes a steel wire rope, a fixed pulley frame, a guide pulley frame and a top pulley frame, the steel wire rope is transmission-connected with the fixed pulley frame, the guide pulley frame and the top pulley frame in sequence from bottom to top, the top of the steel wire rope is wound on the structure in the manual self-locking winch, and both ends of the steel wire rope are closed by setting a chuck sleeve joint, and the chuck sleeve is set on the lifting pallet.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The device for disassembling and assembling a spring of a subway train bogie is provided with a lifting tray and a lifting mechanism. After the lifting tray is controlled by the lifting mechanism to lift the spring and insert it into the train bogie, the device can adjust its own level and quickly align the position, thereby improving the working efficiency, optimizing the working method and improving the working standardization.

[0016] 2. The device is convenient for disassembling and assembling a tie spring of a subway train bogie. The tie spring is transported by a disassembly and assembly vehicle, and the component is pushed to a specified position, thereby reducing the need for manual lifting. A manual self-locking winch is then provided. When the tie spring is lifted to a certain height, the vertical height can be locked for installation operations, thereby improving convenience during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the disassembly and assembly vehicle of the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly structure of the lifting tray of the utility model;

[0020] Figure 4 This is a schematic diagram of the lifting mechanism structure of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the structure of the manual self-locking winch and the lifting mechanism linkage.

[0022] In the figure: 1. disassembling and assembling vehicle; 11. base frame; 12. support frame; 13. extension rod; 14. frame; 15. roller; 16. slide frame; 17. push frame; 2. lifting tray; 21. bracket; 22. fine-tuning frame; 23. knob; 24. bottom support; 25. sliding sleeve; 26. positioning groove; 3. lifting mechanism; 31. wire rope; 32. chuck cover; 33. fixed pulley frame; 34. guide pulley frame; 35. top pulley frame; 4. manual self-locking winch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 , a device for facilitating disassembly and assembly of a subway train bogie spring, comprising: a disassembly and assembly vehicle 1, a lifting tray 2, a lifting mechanism 3 and a manual self-locking winch 4;

[0025] A lifting tray 2 is slidably provided on the disassembling and assembling vehicle 1, and a spring is placed on the lifting tray 2. A lifting mechanism 3 is provided on the front of the disassembling and assembling vehicle 1 from the bottom upward, and the edge of the back side of the lifting tray 2 is connected to the structure on the lifting mechanism 3. A manual self-locking winch 4 is installed on the front side of the disassembling and assembling vehicle 1 near the top, and the structure at the top of the lifting mechanism 3 is linked to the internal structure of the manual self-locking winch 4.

[0026] Among them, the overall frame of the disassembling and assembling vehicle 1 is welded by steel pipes. Using steel pipes to form the frame of the disassembling and assembling vehicle 1 can not only ensure the supporting stability of the disassembling and assembling vehicle 1, but also reduce the cost of the disassembling and assembling vehicle 1, which facilitates the popularization of the disassembling and assembling vehicle 1.

[0027] Among them, the disassembly and assembly vehicle 1 includes a base frame 11, a frame 14 is welded to the top of the base frame 11 near the front end, a support frame 12 is welded to the top of the base frame 11 near the rear end, and the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are welded on the surface of the support frame 12 from bottom to top in sequence. A slide 16 is installed on the front side of the support frame 12 near the bottom, and the lifting tray 2 is slidably connected to the slide 16. The support frame 12 itself is vertically mounted on the base frame 11, and multiple sets of connecting rods are added to increase the stability of the support frame 12 and provide installation support parts for other structures.

[0028] Among them, the structure on the lifting mechanism 3 is installed via and respectively with the first connecting rod, the second connecting rod and the third connecting rod, the manual self-locking winch 4 is installed on the third connecting rod, and a hand push frame 17 is welded on the back of the fourth connecting rod. The structure on the lifting mechanism 3 is respectively installed with the connecting rod on the support frame 12, so that the lifting mechanism 3 is linked along a fixed trajectory, which is convenient for direct maintenance or replacement when problems occur.

[0029] Among them, a rubber pad is installed on the top of the frame 14, and the rubber pad is overlapped with the bottom of the lifting pallet 2. A roller 15 is installed on the side of the frame 14 close to the bottom. An extension rod 13 is welded to the bottom of the first connecting rod, and a universal wheel is installed at the bottom of the extension rod 13. The rubber pad is used to buffer the downward movement of the lifting pallet 2, providing a supporting force for the lifting pallet 2 during spring-loaded transportation, thereby avoiding deformation due to excessive weight on one side for a long time.

[0030] Among them, the lifting tray 2 includes a bracket 21, and the bracket 21 is a frame structure made of welded steel pipes. Slide sleeves 25 are installed on the back edges of the bracket 21 near both sides. A positioning groove 26 for connecting with the upper structure of the lifting mechanism 3 is provided in the middle of the back edge of the bracket 21. The sliding sleeve 25 is used to control the lifting of the bracket 21 and provide a horizontal support force for it, so that a set of springs can be installed smoothly.

[0031] Among them, four groups of fine-tuning frames 22 are welded in a ring shape at the bottom of the bracket 21, and a bottom support 24 is overlapped on the top of the fine-tuning frame 22. The bottom of the bottom support 24 is screwed with a knob 23, and the knob 23 is screwed to the fine-tuning frame 22. The fine-tuning frame 22 is used to adjust the horizontal condition of the bottom support 24 when a set of springs are installed, so that the set of springs coincide with the installation position, thereby improving the accuracy during installation.

[0032] Among them, the lifting mechanism 3 includes a wire rope 31, a fixed pulley frame 33, a guide pulley frame 34 and a top pulley frame 35. The wire rope 31 is transmission-connected with the fixed pulley frame 33, the guide pulley frame 34 and the top pulley frame 35 in sequence from bottom to top. The top of the wire rope 31 is wound on the structure in the manual self-locking winch 4. The two ends of the wire rope 31 are closed by setting a chuck sleeve 32 joint. The chuck sleeve 32 is set on the lifting tray 2. Since the disassembly and installation need to realize the vertical lifting function, the lifting mechanism 3 is used to add a lifting function to the lifting tray 2, which improves the operation process and does not require manual lifting.

[0033] Working principle: when installing a tie spring, first shake the manual self-locking winch 4, use the transmission capacity of the lifting mechanism 3 to lower the lifting tray 2 to the bottom, then move the tie spring to the lifting tray 2, and push the disassembly and assembly vehicle 1 to move to the installation location. After arriving at the installation location, shake the manual self-locking winch 4, use the transmission capacity of the lifting mechanism 3 to lift the lifting tray 2, so that the tie spring on the lifting tray 2 gradually rises, and then use the movement capacity of the disassembly and assembly vehicle 1 to move the tie spring to the bottom of the installation port, and then control the structure on the lifting tray 2 to fine-tune the tie spring, and then continue to shake the manual self-locking winch 4 to make the tie spring enter the installation port, and then install it; when disassembly is required, refer to the above steps, move the lifting tray 2 to the bottom of the tie spring for disassembly, and then control the lifting tray 2 to drop to the lowest point to push the disassembly and assembly vehicle 1 to move.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for facilitating the disassembly and assembly of a spring tie for a subway train bogie, characterized in that: include: A disassembly and assembly vehicle (1), a lifting pallet (2), a lifting mechanism (3) and a manual self-locking winch (4); A lifting tray (2) is slidably arranged on the disassembly and assembly vehicle (1), a spring is placed on the lifting tray (2), a lifting mechanism (3) is arranged on the front of the disassembly and assembly vehicle (1) from the bottom upward, the edge of the back of the lifting tray (2) is connected to the structure on the lifting mechanism (3), a manual self-locking winch (4) is installed on the front of the disassembly and assembly vehicle (1) near the top, and the structure at the top of the lifting mechanism (3) is linked to the internal structure of the manual self-locking winch (4).

2. A device for facilitating the disassembly and assembly of a subway train bogie spring according to claim 1, characterized in that: The overall frame of the disassembling and assembling vehicle (1) is formed by welding steel pipes.

3. The device for facilitating the disassembly and assembly of a subway train bogie spring according to claim 1, characterized in that: The disassembly and assembly vehicle (1) comprises a base frame (11), a frame (14) is welded to the top of the base frame (11) near the front end, a support frame (12) is welded to the top of the base frame (11) near the rear end, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod are welded to the surface of the support frame (12) in sequence from bottom to top, a slide frame (16) is installed on the front side of the support frame (12) near the bottom, and the lifting tray (2) is slidably connected to the slide frame (16).

4. A device for facilitating disassembly and assembly of a subway train bogie spring according to claim 3, characterized in that: The structure on the lifting mechanism (3) is respectively installed with the first connecting rod, the second connecting rod and the third connecting rod, the manual self-locking winch (4) is installed on the third connecting rod, and a hand push frame (17) is welded on the back of the fourth connecting rod.

5. The device for facilitating the disassembly and assembly of a subway train bogie spring according to claim 3, characterized in that: A rubber pad is installed on the top of the frame (14), and the rubber pad is overlapped with the bottom of the lifting tray (2). A roller (15) is installed on the side of the frame (14) close to the bottom. An extension rod (13) is welded to the bottom of the first connecting rod, and a universal wheel is installed at the bottom of the extension rod (13).

6. The device for facilitating the disassembly and assembly of a subway train bogie spring according to claim 1, characterized in that: The lifting tray (2) comprises a bracket (21), and the bracket (21) is a frame structure formed by welding steel pipes as a whole. Slide sleeves (25) are installed on the back edges of the bracket (21) near both sides, and a positioning groove (26) for connecting with the upper structure of the lifting mechanism (3) is provided in the middle of the back edge of the bracket (21).

7. A device for facilitating the disassembly and assembly of a subway train bogie spring according to claim 6, characterized in that: The bottom of the bracket (21) is welded with four groups of fine-tuning frames (22) in a ring shape, the top of the fine-tuning frames (22) is overlapped with a bottom support member (24), the bottom support member (24) is located inside the frame of the bracket (21), the bottom of the bottom support member (24) is screwed with a knob (23), and the knob (23) is screwed to the fine-tuning frame (22).

8. The device for facilitating the disassembly and assembly of a subway train bogie spring according to claim 1, characterized in that: The lifting mechanism (3) comprises a steel wire rope (31), a fixed pulley frame (33), a guide pulley frame (34) and a top pulley frame (35); the steel wire rope (31) is sequentially connected to the fixed pulley frame (33), the guide pulley frame (34) and the top pulley frame (35) in order from bottom to top; the top of the steel wire rope (31) is wound on a structure in a manual self-locking winch (4); the two ends of the steel wire rope (31) are closed by arranging a chuck sleeve (32); and the chuck sleeve (32) is arranged on the lifting tray (2).

Images