Locomotive maintenance frame

By designing an adjustable locomotive maintenance rack, the problem of adaptability to different locomotive sizes was solved, enabling a safe and efficient maintenance process.

CN223812581UActive Publication Date: 2026-01-20BEIJING RAILWAY INST OF MECHANICAL & ELECTRICAL ENG
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Patent Information

Application Number
CN202520594532.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-01-20
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

The existing locomotive maintenance racks are not suitable for locomotives of different heights and widths, resulting in maintenance difficulties and safety hazards.

Method used

A locomotive maintenance rack was designed, comprising top and side maintenance platforms, equipped with a drive unit and a transition platform, and capable of adjusting its height and position to accommodate different locomotive sizes.

Benefits of technology

This expands the versatility of the locomotive maintenance rack, ensures the smoothness and safety of the maintenance process, and avoids the risk of the locomotive colliding with the maintenance rack and workers falling into the air.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of locomotive overhaul, and discloses a locomotive overhaul frame. The locomotive overhaul frame comprises a top face overhaul platform, a side face overhaul platform, a first driving piece and a transition platform. The top face overhaul platform can be arranged on a plurality of stand columns in an overhaul workshop. The transition platform is movably arranged on the top face maintenance platform and provided with a transition position making contact with the top of the locomotive and an avoiding position away from the locomotive. The first driving part is arranged on the top surface maintenance platform, is connected with the transition platform and is used for driving the transition platform to move or rotate; the side face maintenance platform can be arranged between every two adjacent stand columns and comprises an operation platform and a plurality of second driving parts, and the second driving parts can be installed on the ground, connected with the operation platform and used for driving the operation platform to vertically move. The locomotive overhauling frame can be used for overhauling locomotives with different heights and widths, the universality of the locomotive overhauling frame is improved, and the safety of overhauling operation is further improved.
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Description

Technical Field

[0001] This utility model belongs to the field of locomotive maintenance technology, and in particular relates to a locomotive maintenance frame. Background Technology

[0002] During operation, locomotives experience wear and tear. To ensure safe operation and extend their service life, in addition to routine maintenance, locomotives require periodic comprehensive overhauls in the repair workshop. The repair workshop is equipped with a dedicated repair rack featuring multiple platforms, including two levels: one for side inspections and the other for roof inspections. Workers can inspect the locomotive sidewalls from the first platform and also access the locomotive interior through doors or windows. From the second platform, workers can access the roof to inspect equipment such as the pantograph and air conditioning units.

[0003] However, with the increasing diversification of locomotive models, the differences in height and width between different models have brought difficulties to maintenance work. Because the height of each maintenance platform is fixed, workers cannot access the interior of locomotives of all models via the first maintenance platform. Simultaneously, because the width of each maintenance platform is fixed, when maintaining locomotives with narrower widths, the distance between the second maintenance platform and the roof is too large. This not only increases the difficulty for workers to reach the roof but also increases the risk of them slipping and falling while working on the roof, posing a significant safety hazard and seriously threatening the safety of maintenance operations.

[0004] Therefore, there is an urgent need for a locomotive maintenance rack to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a locomotive maintenance frame that can be used to maintain locomotives of different heights and widths, thereby expanding the versatility of the locomotive maintenance frame and improving the safety of maintenance operations.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A locomotive maintenance rack is provided, wherein the locomotive maintenance workshop is provided with multiple columns spaced apart along the locomotive's extension direction, and the locomotive maintenance rack includes:

[0008] The top-mounted maintenance platform can be installed on multiple columns;

[0009] The first driving members are arranged on the top maintenance platform and connected with the corresponding transition platforms, and are used to drive the corresponding transition platforms to move or rotate.

[0010] The side maintenance platforms are arranged between the adjacent two columns and between the top maintenance platform and the ground, and each side maintenance platform comprises a working platform and a second driving member.

[0011] Optionally, the side maintenance platform further comprises a connecting member arranged on the column; the working platform is slidably connected with the column through the connecting member, or the working platform is threadedly connected with the connecting member, and the output end of the second driving member is drivingly connected with the working platform through the connecting member.

[0012] Optionally, the connecting member comprises a slide rod part extending in the vertical direction, and the working platform is sleeved on the slide rod part and slidably connected with the slide rod part.

[0013] Optionally, the working platform is provided with a connecting hole, the slide rod part is arranged in the connecting hole and is in clearance fit with the hole wall of the connecting hole.

[0014] Optionally, the connecting member comprises a screw rod part extending in the vertical direction, the working platform is sleeved on the screw rod part and is threadedly connected with the screw rod part, the output end of the second driving member is connected with the screw rod part, the screw rod part is driven to rotate, and the screw rod part drives the working platform to move vertically.

[0015] Optionally, the top maintenance platform is provided with a track corresponding to each transition platform, the track extends along the width direction of the locomotive, the transition platform is provided with a roller, and the roller is in rolling fit with the corresponding track.

[0016] Optionally, the end of the transition platform is provided with a connecting shaft, the connecting shaft is provided with a bearing, and the roller is rotatably connected with the connecting shaft through the bearing.

[0017] Optionally, the transition platform is movably arranged on the bottom of the top maintenance platform, the bottom of the top maintenance platform is provided with a mounting seat, a mounting space is formed between the mounting seat and the top maintenance platform, and the first driving member is arranged in the mounting space.

[0018] Optionally, the top maintenance platform is provided with a clamping groove, and the transition platform is clamped in the clamping groove in the avoiding position.

[0019] Optionally, the locomotive maintenance rack further comprises a first ladder and a second ladder, one end of the first ladder is connected with the side maintenance platform, and the other end can extend to the ground, one end of the second ladder is connected with the top maintenance platform, and the other end is connected with the first ladder or extends to the ground.

[0020] Compared with the prior art, the locomotive maintenance rack has the following beneficial effects:

[0021] The utility model provides a kind of locomotive maintenance rack, when transition platform is located in avoiding position, and gap is formed between top maintenance platform and locomotive, to prevent locomotive from touching locomotive maintenance rack during moving, ensure the smoothness and safety of locomotive in repair workshop moving;When the top of locomotive needs to be maintained, staff can use the first driving element to drive corresponding transition platform to move or rotate, and transition platform is switched from avoiding position to transition position and contacts with the top of locomotive, at this time, staff can pass through transition platform from top maintenance platform to the top of locomotive, so that even if the width of locomotive to be maintained is small, staff can also pass through locomotive maintenance rack to the top of locomotive, expand the versatility of locomotive maintenance rack.Moreover, the transition platform at transition position can also make there is no gap between top maintenance platform and locomotive, effectively avoid the occurrence of staff from gap when working on the top of locomotive, improve the safety of maintenance work.When maintaining locomotive of different heights, staff can use the second driving element to drive work platform to move vertically, so that staff can maintain the side of locomotive through work platform, and enter the interior of locomotive through work platform from the door or window of locomotive, further expand the versatility of locomotive maintenance rack. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides the plane view of locomotive maintenance rack;

[0023] Figure 2 The first side view of locomotive maintenance rack is provided for the utility model;

[0024] Figure 3 The second side view of locomotive maintenance rack is provided for the utility model;

[0025] Figure 4 The side view of first driving element and transition platform of locomotive maintenance rack is provided for the utility model;

[0026] Figure 5 For Figure 3 Enlarged view in A of figure;

[0027] Figure 6 For Figure 3 Enlarged view in B of figure.

[0028] Wherein:

[0029] 100. Locomotive; 200. Column; 300. Ground;

[0030] 1. Top surface inspection platform; 11. Card slot;

[0031] 2. Side inspection platform; 21. Working platform; 22. Second drive unit; 23. Connecting component;

[0032] 3. First driving component;

[0033] 4. Transition platform; 41. Roller; 42. Connecting shaft;

[0034] 5. Track;

[0035] 6. Mounting bracket;

[0036] 71. First ladder; 72. Second ladder;

[0037] 8. Control components. Detailed Implementation

[0038] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] like Figures 1 to 6 As shown, this embodiment provides a locomotive maintenance rack that can be used to maintain locomotives 100 of different heights and widths, expanding the versatility of the locomotive maintenance rack and improving the safety of maintenance operations.

[0042] See Figure 1 , Figure 3 and Figure 4The maintenance workshop of locomotive 100 is equipped with multiple shafts extending along the direction of locomotive 100. Figure 1 The locomotive maintenance frame includes a top maintenance platform 1, several side maintenance platforms 2, several first drive components 3, and transition platforms 4 corresponding to the first drive components 3. The top maintenance platform 1 can be mounted on multiple columns 200. The transition platform 4 is movably mounted on the top maintenance platform 1. The transition platform 4 has a transition position that contacts the top of the locomotive 100 and a clearance position that avoids the locomotive 100. In the clearance position, the top maintenance platform 1 is in contact with the top of the locomotive 100. A gap is formed between the tops of the two platforms; the first driving component 3 is disposed on the top maintenance platform 1 and connected to the corresponding transition platform 4, for driving the corresponding transition platform 4 to move or rotate; the side maintenance platform 2 can be disposed between two adjacent columns 200 and located between the top maintenance platform 1 and the ground 300. The side maintenance platform 2 includes a working platform 21 and several second driving components 22. The second driving components 22 can be installed on the ground 300 and connected to the working platform 21, for driving the working platform 21 vertically. Figure 3 Move in the Z direction.

[0043] The locomotive maintenance rack provided in this embodiment, when the transition platform 4 is in the avoidance position, forms a gap between the top maintenance platform 1 and the locomotive 100 to prevent the locomotive 100 from colliding with the maintenance rack during movement, ensuring the smoothness and safety of the locomotive 100's movement within the maintenance workshop. When maintenance is required on the top of the locomotive 100, workers can use the first driving component 3 to drive the corresponding transition platform 4 to move or rotate, switching the transition platform 4 from the avoidance position to the transition position and making contact with the top of the locomotive 100. At this time, workers can use the transition platform 4 to climb from the top maintenance platform 1 to the top of the locomotive 100, thus enabling workers to climb from the locomotive maintenance rack to the top of the locomotive 100 even when the width of the locomotive 100 to be maintained is small, expanding the versatility of the locomotive maintenance rack. Moreover, the transition platform 4 in the transition position also eliminates the gap between the top maintenance platform 1 and the locomotive 100, effectively preventing workers from stepping into gaps while working on the top of the locomotive 100, and improving the safety of maintenance operations. When inspecting locomotives 100 at different heights, workers can use the second drive unit 22 to drive the work platform 21 to move vertically, so that workers can inspect the sides of locomotives 100 through the work platform 21, and enter the interior of locomotives 100 through the doors or windows of locomotives 100 through the work platform 21, further expanding the versatility of the locomotive maintenance rack.

[0044] Specifically, see Figure 1 and Figure 3The side maintenance platform 2 is provided with a plurality of side maintenance platforms 2, and each of the adjacent two vertical columns 200 is provided with a side maintenance platform 2. The transition platform 4 is also provided with a plurality of transition platforms 4, and each of the adjacent two vertical columns 200 is provided with a transition platform 4.

[0045] Exemplarily, the vertical column 200 is made of steel material and is fixed to the bottom surface of the maintenance workshop through the concrete foundation to ensure the stability of the installation of the locomotive maintenance rack in the maintenance workshop. The top maintenance platform 1 is arranged on the top of the plurality of vertical columns 200.

[0046] In the embodiment, referring to Figure 1 , a plurality of locomotive maintenance racks are arranged in the maintenance workshop, the plurality of locomotive maintenance racks are arranged at intervals along the width direction (Y direction in the figure) of the locomotive 100, and the locomotive 100 can move between the adjacent two locomotive maintenance racks for maintenance. Figure 1

[0047] In an optional embodiment, referring to Figure 3 , the side maintenance platform 2 further comprises a connecting piece 23 arranged on the vertical column 200, and the working platform 21 is slidably connected with the vertical column 200 through the connecting piece 23. In this way, on the one hand, the vertical column 200 can support the working platform 21 between the ground 300 and the top maintenance platform 1, thereby improving the stability of the installation of the working platform 21 between the two vertical columns 200. On the other hand, when the second driving member 22 drives the working platform 21 to move, the working platform 21 can only slide in the vertical direction under the constraint of the vertical column 200, so as to ensure the moving direction of the working platform 21.

[0048] Exemplarily, the second driving member 22 is a cylinder, and the piston of the cylinder is connected with the working platform 21.

[0049] Further, referring to Figure 1 and Figure 3 , the side maintenance platform 2 comprises two second driving members 22 arranged at intervals along the extension direction of the locomotive 100, and the two second driving members 22 are symmetrically arranged to prevent the working platform 21 from tilting during the movement.

[0050] In the embodiment, the connecting piece 23 comprises a slide rod part extending in the vertical direction, and the working platform 21 is sleeved on the slide rod part and slidably connected with the slide rod part, so as to realize the sliding connection between the working platform 21 and the vertical column 200.

[0051] Specifically, the working platform 21 is provided with a connecting hole, and the slide rod part is arranged in the connecting hole and is in clearance fit with the hole wall of the connecting hole, so as to realize the sliding fit between the working platform 21 and the slide rod part.

[0052] ​Further, the cross section of the work platform 21 is rectangular, and the four corners of the work platform 21 are provided with connecting members 23 to further ensure the stability of the work platform 21 during movement.

[0053] In another optional embodiment, the side maintenance platform 2 further comprises connecting members 23 arranged on the vertical column 200; the work platform 21 is threadedly connected with the connecting members 23, and the output end of the second driving member 22 is drivingly connected with the work platform 21 through the connecting members 23. The threadedly connection between the connecting members 23 and the work platform 21 enables the second driving member 22 to drive the work platform 21 to move vertically through the connecting members 23; and the threadedly connection also enables the movement of the work platform 21 to be more stable and helps the worker to accurately control the position of the work platform 21 during movement.

[0054] Specifically, the connecting members 23 comprise screw rod portions extending in the vertical direction, the work platform 21 is sleeved on the screw rod portions and threadedly connected with the screw rod portions, and the output end of the second driving member 22 is connected with the screw rod portions for driving the screw rod portions to rotate. The screw rod portions are capable of driving the work platform 21 to move vertically when the screw rod portions rotate, so as to adjust the vertical position of the work platform 21, and enable the worker to perform maintenance on the side of the locomotive 100 at different heights via the work platform 21.

[0055] Exemplarily, the second driving member 22 adopts an electric motor.

[0056] In an optional embodiment, referring to Figure 2 , Figure 4 and Figure 5 , the top maintenance platform 1 is provided with rails 5 corresponding to the transition platforms 4 one by one, the rails 5 extend along the width direction (Y direction in Figure 2 ) of the locomotive 100, and the transition platforms 4 are provided with rollers 41 which are in rolling engagement with the corresponding rails 5. When the first driving member 3 drives the transition platforms 4 to move, the transition platforms 4 are capable of driving the rollers 41 to roll on the rails 5 to cooperate with the movement of the transition platforms 4 and ensure the stability of the movement of the transition platforms 4, and also help to reduce the friction between the transition platforms 4 and the top maintenance platform 1, reduce the energy consumption of the first driving member 3, and enable the transition platforms 4 to quickly switch between the transition positions and the avoiding positions.

[0057] Exemplarily, referring to Figure 2 , Figure 4 and Figure 5 , the first driving member 3 adopts a pneumatic cylinder to drive the transition platforms 4 to move linearly along the width direction of the locomotive 100; and the rails 5 adopt angle steels extending along the width direction of the locomotive 100, and the rollers 41 roll in the right angles of the angle steels.

[0058] Specifically, referring to Figure 5The end of the transition platform 4 is provided with a connecting shaft 42, a bearing is arranged on the connecting shaft 42, and the roller 41 is rotatably connected with the connecting shaft 42 through the bearing, so as to ensure that the roller 41 does not overturn the transition platform 4 when rolling.

[0059] In another optional embodiment, the first driving member 3 adopts a motor, the output end of the motor is directly connected with the transition platform 4, and the first driving member 3 drives the transition platform 4 to rotate, so as to switch the transition platform 4 between the transition position and the avoiding position.

[0060] Optionally, referring to Figure 4 The transition platform 4 is movably arranged at the bottom of the top maintenance platform 1, the bottom of the top maintenance platform 1 is provided with a mounting seat 6, an installation space is formed between the mounting seat 6 and the top maintenance platform 1, and the first driving member 3 is arranged in the installation space, so that the first driving member 3 can be stably mounted at the bottom of the top maintenance platform 1 and connected with the transition platform 4.

[0061] Optionally, referring to Figure 2 、 Figure 3 and Figure 6 The top maintenance platform 1 is provided with a clamping groove 11, and the transition platform 4 is clamped in the clamping groove 11 in the avoiding position, so as to prevent the transition platform 4 from moving and affecting the maintenance work of the locomotive 100.

[0062] In this embodiment, referring to Figure 2 、 Figure 3 and Figure 6 The clamping groove 11 is arranged at the middle position of the transition platform 4 along the extension direction of the locomotive 100, and the groove wall of the clamping groove 11 can also support the transition platform 4 to a certain extent in the avoiding position, so as to ensure the stability of the connection between the transition platform 4 and the top maintenance platform 1.

[0063] Optionally, referring to Figure 2 and Figure 3 The locomotive maintenance frame further comprises a first ladder 71 and a second ladder 72, one end of the first ladder 71 is connected with the side maintenance platform 2, and the other end of the first ladder 71 can extend to the ground 300, one end of the second ladder 72 is connected with the top maintenance platform 1, and the other end of the second ladder 72 is connected with the first ladder 71 or extends to the ground 300. The first ladder 71 is arranged so that the worker can go up to the side maintenance platform 2 to maintain the side of the locomotive 100, and the second ladder 72 is arranged so that the worker can go up to the top maintenance platform 1 to maintain the top of the locomotive 100.

[0064] In this embodiment, the locomotive maintenance frame is provided with the first ladder 71 and the second ladder 72 at both ends along the extension direction of the locomotive 100, the first ladder 71 is connected with the side maintenance platform 2 located at the end along the extension direction of the locomotive 100, and the second ladder 72 is connected with the first ladder 71 on the corresponding side.

[0065] Optionally, referring to Figure 3 and Figure 4 The locomotive maintenance rack further comprises a control member 8, which is selectively arranged on any of the columns 200 and is electrically connected or communicatively connected with the first driving members 3 and the second driving members 22, and is configured to control the opening and closing of the first driving members 3 and the second driving members 22, so as to facilitate the staff to control the vertical moving distance of the work platform 21 and the position of the transition platform 4.

[0066] In this embodiment, the control member 8 is arranged on the column 200 close to the first ladder 71, so as to facilitate the staff to operate the control member 8 while standing on the first ladder 71.

[0067] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited to this. It should be understood by those skilled in the art that any changes or replacements within the technical scope disclosed by the present application can be easily thought of by those skilled in the art, and all of these changes or replacements fall within the protection scope and disclosure scope of the present application.

Claims

1. A locomotive maintenance rack, wherein the maintenance workshop of a locomotive (100) is provided with a plurality of columns (200) spaced apart along the extension direction of the locomotive (100), characterized in that, The locomotive maintenance frame includes: The top surface maintenance platform (1) can be installed on multiple of the aforementioned columns (200); A plurality of first driving components (3) and a transition platform (4) corresponding to each of the plurality of first driving components (3), the transition platform (4) being movably disposed on the top surface maintenance platform (1), the transition platform (4) having a transition position in contact with the top of the locomotive (100) and a clearance position away from the locomotive (100), wherein in the clearance position, a gap is formed between the top surface maintenance platform (1) and the top of the locomotive (100); the first driving component (3) is disposed on the top surface maintenance platform (1) and connected to the corresponding transition platform (4), for driving the corresponding transition platform (4) to move or rotate; Several side inspection platforms (2) are provided, which can be set between two adjacent columns (200) and between the top inspection platform (1) and the ground (300). The side inspection platform (2) includes a working platform (21) and several second driving components (22). The second driving components (22) can be installed on the ground (300) and connected to the working platform (21) for driving the working platform (21) to move vertically.

2. The locomotive maintenance frame according to claim 1, characterized in that, The side inspection platform (2) also includes a connector (23) disposed on the column (200); the working platform (21) is slidably connected to the column (200) through the connector (23), or the working platform (21) is threadedly connected to the connector (23), and the output end of the second drive unit (22) is connected to the working platform (21) through the connector (23).

3. The locomotive maintenance frame according to claim 2, characterized in that, The connector (23) includes a slide rod extending in a vertical direction, and the working platform (21) is sleeved on the slide rod and slides in cooperation with the slide rod.

4. The locomotive maintenance frame according to claim 3, characterized in that, The working platform (21) is provided with a connecting hole, and the sliding rod passes through the connecting hole and is clearance-fitted with the hole wall of the connecting hole.

5. The locomotive maintenance frame according to claim 2, characterized in that, The connector (23) includes a screw portion extending in a vertical direction. The working platform (21) is sleeved on the screw portion and threadedly connected to the screw portion. The output end of the second drive member (22) is connected to the screw portion and is used to drive the screw portion to rotate. The screw portion drives the working platform (21) to move vertically.

6. The locomotive maintenance frame according to claim 1, characterized in that, The top maintenance platform (1) is provided with tracks (5) corresponding to several transition platforms (4) one by one. The tracks (5) extend along the width direction of the locomotive (100). The transition platforms (4) are provided with rollers (41), and the rollers (41) roll in cooperation with the corresponding tracks (5).

7. The locomotive maintenance frame according to claim 6, characterized in that, The end of the transition platform (4) is provided with a connecting shaft (42), and a bearing is provided on the connecting shaft (42). The roller (41) is rotatably connected to the connecting shaft (42) through the bearing.

8. The locomotive maintenance frame according to claim 1, characterized in that, The transition platform (4) is movably disposed at the bottom of the top surface maintenance platform (1). The bottom of the top surface maintenance platform (1) is provided with a mounting base (6). An installation space is formed between the mounting base (6) and the top surface maintenance platform (1). The first driving component (3) is disposed within the installation space.

9. The locomotive maintenance frame according to any one of claims 1-8, characterized in that, The top surface maintenance platform (1) is provided with a slot (11), and when in the avoidance position, the transition platform (4) is locked in the slot (11).

10. The locomotive maintenance frame according to any one of claims 1-8, characterized in that, The locomotive maintenance frame also includes a first ladder (71) and a second ladder (72). One end of the first ladder (71) is connected to the side maintenance platform (2), and the other end can extend to the ground (300). One end of the second ladder (72) is connected to the top maintenance platform (1), and the other end is connected to the first ladder (71) or extends to the ground (300).