Bogie lifting device and car lifting equipment

Abstract

The utility model belongs to the technical field of bullet train maintenance, and discloses a bogie lifting device and car lifting equipment. The bogie lifting device comprises first-stage driving assemblies, connecting assemblies, second-stage driving assemblies and jacking assemblies, the multiple first-stage driving assemblies are fixedly arranged on the side wall of a foundation pit, and under driving of the first-stage driving assemblies, the connecting assemblies and the second-stage driving assemblies fixedly arranged on the connecting assemblies can be lifted in the vertical direction at the same time; under the driving of the second-stage driving assembly, the jacking assembly ascends in the vertical direction to drive the supporting stand column and the track walking beam to ascend, and then a bogie, located on the track walking beam, of the motor train unit ascends. According to the device, through a two-stage driving mode, the space can be effectively saved, the depth of a foundation pit is reduced, and the civil engineering construction amount and the construction cost are reduced while the bogie is lifted.

Description

Technical Field

[0001] The utility model relates to the technical field of EMU maintenance, in particular to a bogie lifting device and a car body lifting equipment. Background Art

[0002] As a running mechanism of an EMU, when a bogie of an EMU vehicle fails or reaches 1.2 million kilometers, the EMU needs to be moved to a third-level depot for maintenance. Generally, a whole-train mobile car body lifting equipment or a whole-train fixed car body lifting equipment is used in the third-level depot.

[0003] For the fixed car body lifting equipment, corresponding foundation pits are dug at fixed positions on the ground according to different EMU models, and then the equipment is used to lift and lower the EMU to achieve the purpose of maintenance. The mobile car body lifting equipment needs to cooperate with a trench for operation. It requires operators to enter the trench to unfasten the connection between the bogie and the car body, and then use the mobile car body lifting equipment to lift the car body for subsequent maintenance. With the increase in the depth of the foundation pit and the trench, the civil engineering cost will also increase, resulting in a significant increase in the maintenance cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a bogie lifting device and a car body lifting equipment, which have a compact structure, save space, and can reduce the maintenance cost and investment cost at the same time.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, a bogie lifting device is provided. A foundation pit is dug on the ground. The bogie lifting device includes:

[0007] A first-level driving component, a plurality of which are arranged at intervals along the length direction of the foundation pit and are fixedly arranged on the side wall of the foundation pit;

[0008] A connecting component, which extends in the horizontal direction and is connected to the output end of the first-level driving component. Driven by the first-level driving component, the connecting component can lift and lower in the vertical direction;

[0009] A second-level driving component, which is fixedly arranged on the connecting component;

[0010] A jacking component, which includes two track traveling beams and a plurality of support columns. The two track traveling beams are arranged at intervals along the width direction of the foundation pit, and the EMU to be maintained can travel along the track traveling beams; a plurality of the support columns are arranged at intervals on the bottom side of each track traveling beam, and the support columns are connected between the track traveling beam and the output end of the second-level driving component. Driven by the second-level driving component, the support columns can lift and lower in the vertical direction.

[0011] As an alternative to the bogie lifting device, the primary drive assembly includes:

[0012] A first drive mechanism fixedly provided on the side wall of the foundation pit;

[0013] A first speed reducer connected to the output end of the first drive mechanism;

[0014] A first lead screw extending in the vertical direction and connected to the output end of the first speed reducer;

[0015] A first nut sleeved on the first lead screw and connected to the connection assembly;

[0016] Driven by the first drive mechanism, the first nut can move in the vertical direction to drive the connection assembly to lift and lower.

[0017] As an alternative to the bogie lifting device, the connection assembly includes:

[0018] A plurality of load-bearing beams arranged at intervals along the length direction of the foundation pit, and each load-bearing beam extends along the width direction of the foundation pit;

[0019] A plurality of connecting beams, each connecting beam extends along the length direction of the foundation pit and is connected between two adjacent load-bearing beams;

[0020] The output end of the primary drive assembly is connected to the load-bearing beam or the connecting beam.

[0021] As an alternative to the bogie lifting device, both the load-bearing beam and the connecting beam are I-beams.

[0022] As an alternative to the bogie lifting device, the secondary drive assembly includes:

[0023] A second drive mechanism fixedly provided on the connection assembly;

[0024] Two second speed reducers are arranged at intervals on both sides of the second drive mechanism and are both connected to the output end of the second drive mechanism;

[0025] Two second lead screws are correspondingly connected to the output ends of the two second speed reducers, and each second lead screw extends in the vertical direction;

[0026] Two second nuts are correspondingly sleeved on the two second lead screws, and each second nut is connected to a support column;

[0027] Driven by the second drive mechanism, the second nut can move in the vertical direction to drive the support column to lift and lower.

[0028] As an alternative solution for the bogie lifting device, a connecting portion protrudes from one side of the support column close to the track running beam, a sleeve is provided on the track running beam, and the connecting portion extends into the sleeve.

[0029] As an alternative solution for the bogie lifting device, it further includes a skirt board, which extends along the vertical direction, is arranged on the bottom wall of the foundation pit and is located inside the connecting assembly.

[0030] As an alternative solution for the bogie lifting device, it further includes a cover plate, which extends along the horizontal direction, is connected to the side wall of the foundation pit and is flush with the ground.

[0031] On the other hand, a car body lifting device is provided, which includes the above-mentioned bogie lifting device and a plurality of car body lifting devices. The plurality of car body lifting devices are arranged on the ground and are distributed on both sides of the foundation pit; the car body lifting device includes:

[0032] A support frame, which is movably arranged on the ground;

[0033] A driving member, which is used to support the EMU car body and is arranged on the support frame;

[0034] A jacking member, which is slidably arranged on the support frame along the vertical direction and is connected to the output end of the driving member.

[0035] As an alternative solution for the car body lifting device, an avoidance groove is arranged on one side of the jacking member facing the EMU car body.

[0036] The beneficial effects of the present utility model:

[0037] The present utility model provides a bogie lifting device for lifting the bogie of an EMU. A plurality of primary driving assemblies are fixedly arranged on the side wall of the foundation pit. Driven by the primary driving assemblies, the connecting assembly and the secondary driving assembly fixed on the connecting assembly can be lifted simultaneously in the vertical direction; driven by the secondary driving assembly, the jacking assembly is lifted in the vertical direction, driving the support column and the track running beam to be lifted, and further lifting the bogie of the EMU located on the track running beam. By means of two-stage driving, while lifting the bogie, the space can be effectively saved, the depth of the foundation pit can be reduced, and the civil engineering construction quantity and construction cost can be reduced. Description of the Drawings

[0038] Figure 1 is the overall schematic diagram of the car body lifting device provided by the embodiment of the specific implementation manner of the present utility model;

[0039] Figure 2 is the sectional view of the bogie lifting device provided by the embodiment of the specific implementation manner of the present utility model;

[0040] Figure 3 is the overall schematic diagram of the bogie lifting device provided by the embodiment of the specific implementation manner of the present utility model;

[0041] Figure 4 is the overall schematic diagram of the car body lifting device provided by the embodiment of the specific implementation manner of the present utility model.

[0042] In the figure:

[0043] 100, foundation pit;

[0044] 200, car body lifting device; 201, support frame; 202, top support member; 2021, avoidance groove;

[0045] 1, primary drive assembly; 11, first drive mechanism; 12, first reducer; 13, first lead screw; 14, first nut;

[0046] 2, connection assembly; 21, load-bearing beam; 22, connection beam;

[0047] 3, secondary drive assembly; 31, second drive mechanism; 32, second reducer; 33, second lead screw; 34, second nut;

[0048] 4, jacking assembly; 41, rail traveling beam; 411, sleeve; 42, support column;

[0049] 5, enclosing plate;

[0050] 6, cover plate. Specific implementation manner

[0051] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present utility model and do not limit the present utility model. Additionally, it should be noted that for the sake of convenience of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0052] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of this embodiment, the terms such as "upper", "lower", "right", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0055] The technical solution of the present utility model will be further described below in conjunction with the drawings and through specific embodiments.

[0056] As Figures 1 to 3 shown, this embodiment provides a bogie lifting device for lifting the bogie of a multiple unit train. A foundation pit 100 is dug on the ground of the maintenance depot. The bogie lifting device includes a first-stage driving assembly 1, a connecting assembly 2, a second-stage driving assembly 3 and a jacking assembly 4. Among them, a plurality of first-stage driving assemblies 1 are arranged at intervals along the length direction of the foundation pit 100 and are all fixedly arranged on the side wall of the foundation pit 100. The connecting assembly 2 extends in the horizontal direction and is connected to the output end of the first-stage driving assembly 1. The second-stage driving assembly 3 is fixedly arranged on the connecting assembly 2. Driven by the first-stage driving assembly 1, the connecting assembly 2 and the second-stage driving assembly 3 can simultaneously lift in the vertical direction. The jacking assembly 4 includes two track running beams 41 and a plurality of support columns 42. The two track running beams 41 are arranged at intervals along the width direction of the foundation pit 100. The multiple unit train to be maintained can travel along the track running beams 41. A plurality of support columns 42 are arranged at intervals on the bottom side of each track running beam 41. The support columns 42 are connected between the track running beams 41 and the output end of the second-stage driving assembly 3. Driven by the second-stage driving assembly 3, the support columns 42 and the track running beams 41 can lift in the vertical direction, thereby driving the bogie of the multiple unit train located on the track running beams 41 to lift for subsequent maintenance. By means of two-stage driving, while lifting the bogie, the device can effectively save space, reduce the depth of the foundation pit 100, and reduce the civil engineering construction volume and construction cost.

[0057] Optionally, as Figure 2 andFigure 3 As shown in Figure 3 , the first-level driving assembly 1 includes a first driving mechanism 11, a first speed reducer 12, a first lead screw 13, and a first nut 14. Among them, the first driving structure is fixedly arranged on the side wall of the foundation pit 100. The first speed reducer 12 is connected to the output end of the first driving mechanism 11. The first lead screw 13 extends in the vertical direction and is connected to the output end of the first speed reducer 12. The first nut 14 is sleeved on the first lead screw 13 and is connected to the connecting assembly 2. Driven by the first driving mechanism 11, the first lead screw 13 can be stably driven to rotate. Combining the thread fit between the first lead screw 13 and the first nut 14, the lifting of the first nut 14 is driven, and then the lifting of the connecting assembly 2 is realized. The above settings have high transmission stability and transmission efficiency, and can ensure the stability of the connecting assembly 2 during the lifting process.

[0058] Exemplarily, the first driving mechanism 11 is a driving motor commonly used in the art; the first speed reducer 12 is an existing device already disclosed in the prior art. Its main function is to reduce the output speed, increase the torque, and enhance the load capacity to stably drive the first lead screw 13 to rotate. Its specific structure and working principle refer to the prior art and will not be specifically described here.

[0059] Optionally, continue to refer to Figure 2 and Figure 3 , the connecting assembly 2 includes a plurality of bearing beams 21 and a plurality of connecting beams 22. The plurality of bearing beams 21 are arranged at intervals along the length direction of the foundation pit 100, and each bearing beam 21 extends along the width direction of the foundation pit 100. Each connecting beam 22 extends along the length direction of the foundation pit 100 and is connected between two adjacent bearing beams 21, that is, the bearing beams 21 and the connecting beams 22 form a rectangular structure. The output end of the first-level driving assembly 1 is connected to the bearing beam 21 or the connecting beam 22.

[0060] Specifically in this embodiment, the first nut 14 is welded to the connecting beam 22; in other embodiments, the first nut 14 can also be welded to the bearing beam 21.

[0061] Furthermore, both the connecting beam 22 and the bearing beam 21 are I-beams, which have high strength, are easy to obtain materials, and can reduce the weight of the connecting assembly 2 itself and improve the lifting efficiency.

[0062] Optionally, as shown in Figure 2 and Figure 3As shown in the figure, the secondary drive assembly 3 includes a second drive mechanism 31, two second speed reducers 32, two second lead screws 33, and two second nuts 34. Among them, the second drive mechanism 31 is fixedly arranged on the bearing beam 21. The two second speed reducers 32 are arranged at intervals on both sides of the second drive mechanism 31 and are both connected to the output end of the second drive mechanism 31. The two second lead screws 33 are correspondingly connected to the output ends of the two second speed reducers 32, and each second lead screw 33 extends in the vertical direction. The two second nuts 34 are correspondingly sleeved on the two second lead screws 33, and each second nut 34 is connected to a support column 42. Driven by the second drive mechanism 31, the second nut 34 can move in the vertical direction, thereby driving the support column 42 to rise and fall. The above setting has high transmission stability and transmission efficiency, and can ensure the stability of the support column 42 during the lifting process.

[0063] Specifically, the second nut 34 is fixedly connected to the bottom side of the support column 42 by welding. The support column 42 is of a hollow structure. One end of the second lead screw 33 far from the second speed reducer 32 passes through the second nut 34 and can extend into the interior of the support column 42.

[0064] Exemplarily, the second drive mechanism 31 is a common dual-axis motor in the art and has two output ends; the second speed reducer 32 is a known device in the prior art. Its main function is to reduce the output speed, increase the torque, and enhance the load capacity to stably drive the second lead screw 33 to rotate. For its specific structure and working principle, reference can be made to the prior art and will not be specifically described here.

[0065] Optionally, referring to Figure 2 , a connecting portion (not labeled in the figure) protrudes from one side of the support column 42 close to the track walking beam 41. A sleeve 411 is arranged on the track walking beam 41, and the connecting portion extends into the sleeve 411 so that the track walking beam 41 is connected to and limited on the support column 42.

[0066] Specifically, in this embodiment, the track walking beam 41 is also of a hollow structure, and the sleeve 411 is fixedly arranged inside the track walking beam 41 to improve space utilization and reduce the amount of civil engineering construction.

[0067] Optionally, as Figure 3 shown, the bogie lifting device further includes a shroud 5. The shroud 5 extends in the vertical direction. The shroud 5 is arranged on the bottom wall of the foundation pit 100 and is located inside the connecting assembly 2. Specifically in this example, the shroud 5 is arranged between the two connecting beams 22. The above setting can prevent each component of the device from bumping and scratching with personnel when the operator walks in the foundation pit 100, ensuring the safety of the operator.

[0068] Optionally, referring to Figure 1, the bogie lifting device further includes a cover plate 6. The cover plate 6 extends horizontally, is connected to the side wall of the foundation pit 100, and is flush with the ground. The cover plate 6 can cover part of the upper side of the primary drive assembly 1, and can prevent operators from falling into the foundation pit 100 while not affecting the lifting of the track girder 41.

[0069] Specifically, a hinge is provided between the cover plate 6 and the side wall of the foundation pit 100 to rotatably connect the cover plate 6 to the side wall of the foundation pit 100. When the device needs to be installed or repaired, the cover plate 6 is rotated and opened to facilitate the improvement of installation efficiency and repair efficiency.

[0070] On the other hand, this embodiment also provides a car lifting device. The device includes the above-mentioned bogie lifting device and a plurality of car body lifting devices 200. Refer to Figure 1 , a plurality of car body lifting devices 200 are arranged on the ground and are respectively arranged on both sides of the foundation pit 100. As Figure 4 shown, the car body lifting device 200 includes a support frame 201, a driving member (not shown in the figure), and a jacking member 202. Among them, the support frame 201 is movably arranged on the ground, the driving member is arranged on the support frame 201, and the jacking member 202 for supporting the EMU car body is slidably arranged on the support frame 201 in the vertical direction and is connected to the output end of the driving member. Driven by the driving member, the jacking member 202 can lift in the vertical direction to achieve the purpose of lifting the EMU car body.

[0071] Specifically, a plurality of moving wheels are arranged on the support frame 201 to facilitate the movement of the support frame 201. The driving member is a commonly used motor in the art as long as it can drive the jacking member 202 to lift and lower in the vertical direction.

[0072] Optionally, refer to Figure 4 , an avoidance groove 2021 is arranged on the side of the jacking member 202 facing the EMU car body. The above setting can be applicable to the jacking of EMU car bodies of various models and has high applicability. For example, cross bars are arranged on the sides of some models of EMU car bodies, and the cross bars can abut against the upper end surface of the jacking member 202; circular holes are arranged on the sides of some models of EMU car bodies, and the jacking member 202 can extend into the circular holes to support the car body.

[0073] Exemplarily, in this embodiment, the avoidance groove 2021 is arc-shaped.

[0074] Specifically, when performing maintenance on the multiple unit train, first use the bogie lifting device to lift the bogie and the car body as a whole to a certain height, and the operator performs the disassembly work between the bogie and the car body at the bottom of the multiple unit train. Then use the car body lifting device 200 to support the car body, so that the bogie lifting device lowers the bogie. At the same time, the car body lifting device 200 can also support the car body for lifting and lowering operations to facilitate the maintenance of the multiple unit train.

[0075] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A bogie lifting device, characterized in that, A foundation pit (100) is dug on the ground, and the bogie lifting device includes: A first-level drive assembly (1), a plurality of which are arranged at intervals along the length direction of the foundation pit (100) and are all fixed on the side wall of the foundation pit (100); A connection assembly (2), extending in the horizontal direction and connected to the output end of the first-level drive assembly (1). Driven by the first-level drive assembly (1), the connection assembly (2) can lift and lower in the vertical direction; A second-level drive assembly (3), fixed on the connection assembly (2); A jacking assembly (4), including two track traveling beams (41) and a plurality of support columns (42). The two track traveling beams (41) are arranged at intervals along the width direction of the foundation pit (100), and the EMU to be repaired can travel along the track traveling beams (41); A plurality of the support columns (42) are arranged at intervals on the bottom side of each track traveling beam (41), and the support columns (42) are connected between the track traveling beam (41) and the output end of the second-level drive assembly (3). Driven by the second-level drive assembly (3), the support columns (42) can lift and lower in the vertical direction.

2. The bogie lifting device according to claim 1, characterized in that, The first-level drive assembly (1) includes: A first drive mechanism (11), fixed on the side wall of the foundation pit (100); A first reducer (12), connected to the output end of the first drive mechanism (11); A first lead screw (13), extending in the vertical direction and connected to the output end of the first reducer (12); A first nut (14), sleeved on the first lead screw (13) and connected to the connection assembly (2); Driven by the first drive mechanism (11), the first nut (14) can move in the vertical direction to drive the connection assembly (2) to lift and lower.

3. The bogie lifting device according to claim 1, characterized in that, The connection assembly (2) includes: A plurality of load-bearing beams (21), arranged at intervals along the length direction of the foundation pit (100), and each load-bearing beam (21) extends along the width direction of the foundation pit (100); A plurality of connection beams (22), each connection beam (22) extends along the length direction of the foundation pit (100) and is connected between two adjacent load-bearing beams (21); The output end of the first-level drive assembly (1) is connected to the load-bearing beam (21) or the connection beam (22).

4. The bogie lifting device according to claim 3, characterized in that, Both the load-bearing beam (21) and the connection beam (22) are I-beams.

5. The bogie lifting device according to claim 1, characterized in that, The second-level drive assembly (3) includes: A second drive mechanism (31), fixed on the connection assembly (2); Two second reducers (32), arranged on both sides of the second drive mechanism (31) at intervals and both connected to the output end of the second drive mechanism (31); Two second lead screws (33), respectively connected to the output ends of the two second reducers (32), and each second lead screw (33) extends in the vertical direction; Two second nuts (34), respectively sleeved on the two second lead screws (33), and each second nut (34) is connected to one support column (42); Driven by the second driving mechanism (31), the second nut (34) can move along the vertical direction to drive the support column (42) to lift and lower.

6. The bogie lifting device according to any one of claims 1-5, characterized in that, One side of the support column (42) close to the track traveling beam (41) is convexly provided with a connecting portion, and a sleeve (411) is arranged on the track traveling beam (41), and the connecting portion extends into the sleeve (411).

7. The bogie lifting device according to any one of claims 1-5, characterized in that, It further includes a surrounding plate (5), the surrounding plate (5) extends along the vertical direction, the surrounding plate (5) is arranged on the bottom wall of the foundation pit (100) and is located inside the connecting assembly (2).

8. The bogie lifting device according to any one of claims 1-5, characterized in that It further includes a cover plate (6), the cover plate (6) extends along the horizontal direction, the cover plate (6) is connected to the side wall of the foundation pit (100) and is flush with the ground.

9. A car lifting device, characterized in that, It includes a bogie lifting device and a plurality of car body lifting devices (200) as described in any one of claims 1-8. The plurality of car body lifting devices (200) are arranged on the ground and are respectively arranged on both sides of the foundation pit (100); the car body lifting device (200) includes: A support frame (201), movably arranged on the ground; A driving member, arranged on the support frame (201); A top support member (202) for supporting the EMU car body, slidably arranged on the support frame (201) along the vertical direction and connected to the output end of the driving member.

10. The car lifting equipment according to claim 9, characterized in that, A relief groove (2021) is arranged on one side of the top support member (202) facing the EMU car body.

Images