Locomotive chassis operation walking board

Abstract

The utility model relates to the technical field of vehicle manufacturing, in particular to a locomotive chassis operation walking board. The sides, facing the third fixed table, of the first fixed table and the second fixed table are provided with first stepped tables, the sides, facing the third movable table, of the first movable table and the second movable table are provided with second stepped tables, and the sides, facing the third driven table, of the first driven table and the second driven table are provided with third stepped tables. And the heights of the first step platform, the second step platform and the third step platform are gradually reduced, so that the rotation of the locomotive chassis does not interfere with the operation walking board of the locomotive chassis, compared with the prior art, an additional protection personnel moving related structure does not need to be arranged, an operator can move to a target position as required without waiting for moving, and the operation efficiency is improved. In addition, an inspector can reach a target position without moving during use, so that the working efficiency of the inspector is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a locomotive underframe work platform. Background Technology

[0002] The underframe flipping welding fixture uses two rotating rings, each of which can rotate and be disassembled into upper and lower half-rings. The distance between the two rotating rings can be adjusted. One rotating ring is fixed, while the other can be moved away from or closer to the fixed ring. This fixture can adapt to the production of vehicles of different lengths.

[0003] Typically, workers climb the scaffolding using ladders. To facilitate work, at least one safety officer must be stationed on the ground to move the ladder alongside the workers. The number of safety officers depends on the size of the ladders and the area where the workers are spread out. If the scaffolding typically requires six people to work simultaneously, then at least three working ladders and one safety officer to move the ladder on the ground are needed. This approach is extremely inefficient, prone to violations of work regulations, and furthermore, the efficiency of quality inspections such as weld seams on the scaffolding is also very low.

[0004] Therefore, there is an urgent need for a locomotive underframe work platform to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a locomotive underframe work platform that can improve work efficiency, ensure standardized operation of workers, and also improve the work efficiency of inspectors.

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

[0007] A locomotive underframe work platform is provided, comprising:

[0008] The fixed end walkway includes a first fixed platform, a second fixed platform, and a third fixed platform. The first fixed platform and the second fixed platform are arranged symmetrically along the central axis of the locomotive underframe. The third fixed platform is located in the area enclosed by the first fixed platform and the second fixed platform. A first stepped platform is provided on the side of the first fixed platform and the second fixed platform facing the third fixed platform. The first stepped platform extends along the length of the locomotive underframe.

[0009] The central walkway includes a first movable platform, a second movable platform, and a third movable platform. The third movable platform is located between the first movable platform and the second movable platform. A second stepped platform is provided on the side of the first movable platform and the second movable platform facing the third movable platform. The second stepped platform extends along the length direction of the locomotive underframe.

[0010] The movable platform includes a first driven platform, a second driven platform, and a third driven platform. The first and second driven platforms are arranged symmetrically along the central axis of the locomotive underframe. The third driven platform is located within the area enclosed by the first and second driven platforms. The first and second driven platforms are provided with a third stepped platform facing the third driven platform. The third stepped platform extends along the length of the locomotive underframe.

[0011] As a preferred technical solution for the above-mentioned locomotive underframe work platform, the third moving platform includes a first moving part and a second moving part. The bottom of the first moving part is provided with a moving guide plate, and the bottom of the second moving part is provided with a moving wheel. The second moving part is inserted into the first moving part, and the moving wheel is located on the moving guide plate and can slide on the moving guide plate.

[0012] As a preferred technical solution for the above-mentioned locomotive underframe working platform, the central platform is further provided with a first lifting cylinder and a second lifting cylinder. The output end of the first lifting cylinder is connected to the first moving part to raise and lower the first moving part, and the output end of the second lifting cylinder is connected to the second moving part to raise and lower the second moving part.

[0013] As a preferred technical solution for the above-mentioned locomotive underframe working platform, the central platform further includes a guide structure, which includes a guide sleeve and a guide rod. The outer wall of the guide sleeve is fixed to a movable rotating ring that clamps the locomotive underframe. The guide rod passes through the guide sleeve, and one end of the guide rod is fixedly connected to the second moving part.

[0014] As a preferred technical solution for the above-mentioned locomotive underframe work platform, both the first moving platform and the second moving platform include a third moving part and a fourth moving part. The third moving part is provided with a first slot, the fourth moving part is inserted into the first slot, and a pulley is provided at the bottom of the end of the fourth moving part that is inserted into the third moving part.

[0015] As a preferred technical solution for the above-mentioned locomotive underframe working platform, the bottom of the first driven platform, the second driven platform and the third driven platform are all provided with traveling wheels.

[0016] As a preferred technical solution for the above-mentioned locomotive underframe working platform, the first step platform, the second step platform and the third step platform all include slot components and step components. The first fixed platform, the second fixed platform, the first moving platform, the second moving platform, the first driven platform and the second driven platform are all provided with the slot components on the side facing the locomotive underframe. The two ends of the step components are inserted into the slot components at intervals.

[0017] As a preferred technical solution for the above-mentioned locomotive underframe work platform, the second step platform includes at least a plurality of separate step components, which are arranged in a single sequence along the length of the locomotive underframe.

[0018] As a preferred technical solution for the above-mentioned locomotive underframe work platform, guardrails and ladders are provided on the side of the first fixed platform, the second fixed platform, the third fixed platform, the first movable platform, the second movable platform, the third movable platform, the first driven platform, the second driven platform, and the third driven platform away from the locomotive underframe.

[0019] As a preferred technical solution for the above-mentioned locomotive underframe working platform, the fixed end platform, the middle platform and the moving platform are all provided with clearance grooves.

[0020] This utility model has at least the following beneficial effects:

[0021] Because the first fixed platform and the second fixed platform are provided with a first stepped platform on the side facing the third fixed platform, the first moving platform and the second moving platform are provided with a second stepped platform on the side facing the third moving platform, and the first driven platform and the second driven platform are provided with a third stepped platform on the side facing the third driven platform, and the height of the first stepped platform, the second stepped platform and the third stepped platform gradually decrease, so there will be no interference with the locomotive underframe working platform when the locomotive underframe rotates. In addition, it is convenient for operators to perform processing on the locomotive underframe at different height positions as needed. Compared with the existing technology, there is no need to equip additional protective personnel to move the relevant structures. Operators can move to the target position as needed without waiting to move, which can improve work efficiency. In addition, inspectors can also reach the target position without moving when using it, which improves the work efficiency of inspectors. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of the locomotive underframe work platform provided in an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the first structure of the fixed-end walkway provided in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the second structure provided for an embodiment of the present utility model;

[0026] Figure 4 A schematic diagram of the structure of the central walkway provided in an embodiment of this utility model;

[0027] Figure 5 A first-view structural schematic diagram of the third mobile station provided in an embodiment of this utility model;

[0028] Figure 6 A structural schematic diagram of the third mobile station from a second perspective provided in an embodiment of this utility model;

[0029] Figure 7 for Figure 6 Enlarged view of a portion of point A in the middle;

[0030] Figure 8 This is a schematic diagram of the structure of the mobile walkway provided in an embodiment of the present utility model.

[0031] In the picture:

[0032] 1. Fixed end walkway; 11. First fixed platform; 12. Second fixed platform; 13. Third fixed platform; 14. First stepped platform; 15. Elevating platform; 2. Middle walkway; 21. First moving platform; 211. Third moving section; 212. Fourth moving section; 22. Second moving platform; 23. Third moving platform; 231. First moving section; 232. Second moving section; 233. Moving guide plate; 234. Moving wheels; 2 4. Second step platform; 241. Step component; 25. Guide structure; 251. Guide sleeve; 252. Guide rod; 26. First lifting cylinder; 27. Second lifting cylinder; 3. Moving platform; 31. First driven platform; 32. Second driven platform; 33. Third driven platform; 34. Third step platform; 35. Traveling wheel; 4. Guardrail; 5. Ladder; 6. Clearance groove; 100. Fixed swivel; 200. Moving swivel. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] like Figure 1 The diagram shows the structure of the locomotive underframe working platform. The rotating ring on the left is a fixed rotating ring 100, and the rotating ring on the right is a movable rotating ring 200. This locomotive underframe working platform mainly consists of a fixed end platform 1, a middle platform 2, and a movable platform 3. The locomotive underframe working platform is approximately 26 meters long, 6 meters wide, and 1.5 meters high. Its length can be extended or shortened, and its width adopts a maximum of 4-layer stepped buffer design to ensure that the locomotive underframe does not interfere with the working platform during rotation while minimizing the risk of personnel falling. At the same time, each of the three main components of the platform (fixed end platform 1, middle platform 2, and movable platform 3) adopts a split design and can be adjusted in the width direction, making it suitable for locomotive underframes of different specifications.

[0038] This embodiment provides a locomotive underframe work platform, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8As shown, the locomotive underframe work platform includes a fixed end platform 1, a middle platform 2, and a movable platform 3. The fixed end platform 1 includes a first fixed platform 11, a second fixed platform 12, and a third fixed platform 13. The first fixed platform 11 and the second fixed platform 12 are arranged axially symmetrically along the central axis of the locomotive underframe. The third fixed platform 13 is located within the area enclosed by the first fixed platform 11 and the second fixed platform 12. A first stepped platform 14 is provided on the side of the first fixed platform 11 and the second fixed platform 12 facing the third fixed platform 13, and the first stepped platform 14 extends along the length of the locomotive underframe. The middle platform 2 includes a first movable platform 21, a second movable platform 22, and a third movable platform 23. The first movable platform 21 and the second movable platform 22 are connected and can... The third moving platform 23 is located between the first moving platform 21 and the second moving platform 22. A second stepped platform 24 is provided on the side of the first moving platform 21 and the second moving platform 22 facing the third moving platform 23. The second stepped platform 24 extends along the length of the locomotive underframe. The moving platform 3 includes a first driven platform 31, a second driven platform 32 and a third driven platform 33. The first driven platform 31 and the second driven platform 32 are arranged axially symmetrically along the central axis of the locomotive underframe. The third driven platform 33 is located in the area enclosed by the first driven platform 31 and the second driven platform 32. A third stepped platform 34 is provided on the first driven platform 31 and the second driven platform 32 facing the third driven platform 33. The third stepped platform 34 extends along the length of the locomotive underframe.

[0039] Because the first fixed platform 11 and the second fixed platform 12 are provided with a first stepped platform 14 on the side facing the third fixed platform 13, the first moving platform 21 and the second moving platform 22 are provided with a second stepped platform 24 on the side facing the third moving platform 23, and the first driven platform 31 and the second driven platform 32 are provided with a third stepped platform 34 on the side facing the third driven platform 33, and the heights of the first stepped platform 14, the second stepped platform 24 and the third stepped platform 34 gradually decrease, there will be no interference with the locomotive underframe working platform when the locomotive underframe rotates. In addition, it is convenient for operators to perform processing on the locomotive underframe at different height positions as needed. Compared with the prior art, there is no need to equip additional protective personnel to move the relevant structures. Operators can move to the target position as needed without waiting to move, which can improve work efficiency. In addition, inspectors can also reach the target position without moving when using it, which improves the work efficiency of inspectors.

[0040] Specifically, such as Figure 3The diagram shows a fixed-end walkway 1, comprising a first fixed platform 11, a second fixed platform 12, and a third fixed platform 13. The first and second fixed platforms 11 and 12 are L-shaped and mounted on the ground. They are axially symmetrical along the central axis of the locomotive underframe and are divided into two layers. The third fixed platform 13 is located between the first and second fixed platforms 11 and 12, also mounted on the ground, forming one layer. The three fixed platforms 11, 12, and 13 are not interconnected and can be adjusted by approximately 0-300mm according to the width of the locomotive underframe. These platforms form three planes: high, medium, and low. The highest plane is used for welding around the locomotive underframe, traveling, climbing onto the upper surface of the locomotive underframe, and disassembling tooling semi-rings; the medium plane acts as a step; and the low plane is used for welding the vertical surfaces of the locomotive underframe. The three planes together form a gentle slope to prevent falls. Slotted components (i.e., angle steel) are installed on the first and second fixed platforms 11, such as... Figure 4 As shown, step components 241 can be installed on the first fixed platform 11 and the second fixed platform 12. The step components 241 are composed of inverted U-shaped bent parts. The two vertical plates of each step component 241 are of different lengths and can be inserted into the slot components. They can slide along the length of the slot components. Two step components 241 on the same layer can also be inserted into each other, and the length of the step components 241 can be adjusted. The top of the third fixed platform 13 is provided with a height-increasing platform 15. The height-increasing platform 15 is installed on the third fixed platform 13 and is composed of four inverted U-shaped bent parts. The two bent parts along the length of the locomotive underframe are of different heights and can be inserted into each other, thereby adjusting the length of the height-increasing platform 15. By adjusting and matching the step components 241 and the height-increasing platform 15, the different usage requirements for welding inspection of locomotive underframes of different lengths and widths can be met.

[0041] In some embodiments, such as Figure 4 and Figure 5 As shown, the third moving platform 23 includes a first moving part 231 and a second moving part 232. A moving guide plate 233 is provided at the bottom of the first moving part 231, forming a second slot with the first moving part 231. A moving wheel 234 is provided at the bottom of the second moving part 232. The second moving part 232 is inserted into the first moving part 231, that is, inserted into the second slot. The moving wheel 234 is located on the moving guide plate 233 and can slide on it. The sliding of the moving wheel 234 on the moving guide plate 233 facilitates the second moving part 232 and the first moving part 231 moving closer or further apart, reducing friction during movement and making the length adjustment of the third moving platform 23 easier.

[0042] To accommodate both vertically and horizontally placed locomotive underframes, in this embodiment, as... Figure 6 As shown, the central walkway 2 is also equipped with a first lifting cylinder 26 and a second lifting cylinder 27. The output end of the first lifting cylinder 26 is connected to the first moving part 231 to raise and lower the first moving part 231, and the output end of the second lifting cylinder 27 is connected to the second moving part 232 to raise and lower the second moving part 232. The first lifting cylinder 26 and the second lifting cylinder 27 respectively lift the first moving part 231 and the second moving part 232 to achieve synchronous movement of the first moving part 231 and the second moving part 232, thus achieving the purpose of raising and lowering both the first moving part 231 and the second moving part 232. For example, both the first lifting cylinder 26 and the second lifting cylinder 27 are hydraulic cylinders, which is suitable for working walkways on locomotive underframes with relatively large weights.

[0043] To ensure the smooth operation of the third moving platform 23 during lifting, the central platform 2 also includes a guide structure 25. The guide structure 25 includes a guide sleeve 251 and a guide rod 252. The outer wall of the guide sleeve 251 is fixed to the movable rotating ring that holds the locomotive underframe. Specifically, the outer wall of the guide sleeve 251 is fixed to the base of the movable rotating ring by a flange. The guide rod 252 passes through the guide sleeve 251 and can move along the length of the guide sleeve 251. One end of the guide rod 252 is fixedly connected to the second moving part 232. Thus, under the action of the guide rod 252 and the guide sleeve 251, the movement of the third moving platform 23 can be made more stable.

[0044] In some embodiments, both the first moving stage 21 and the second moving stage 22 include a third moving part 211 and a fourth moving part 212. The third moving part 211 is provided with a first slot, and the fourth moving part 212 is inserted into the first slot. A pulley is provided at the bottom of the end of the fourth moving part 212 that is inserted into the third moving part 211. The pulley can move within the first slot to improve the efficiency of adjusting the length of the intermediate platform and reduce the adjustment time of the intermediate platform, thus making it suitable for processing locomotive underframes of different lengths.

[0045] To facilitate the movement of the movable platform 3 during the adjustment of the intermediate platform length, the bottom of the first driven platform 31, the second driven platform 32, and the third driven platform 33 are all equipped with wheels 35. The wheels 35 facilitate the movement of the first driven platform 31, the second driven platform 32, and the third driven platform 33, thereby improving the efficiency of adjusting the length of the working platform of the locomotive underframe.

[0046] In some embodiments, the first step platform 14, the second step platform 24, and the third step platform 34 each include a slot member and a step member 241. Slot members are provided on the side of the first fixed platform 11, the second fixed platform 12, the first movable platform 21, the second movable platform 22, the first driven platform 31, and the second driven platform 32 facing the locomotive underframe. The two ends of the step member 241 are inserted into the slot members at vertical intervals. For example, on the side of the first driven platform 31 facing the third driven platform 33, there are two or more slot members at vertical intervals. Each slot member has a third slot. Specifically, the slot member can be an angle steel, thus ensuring that the step member 241 is inserted into the third slot of the angle steel.

[0047] Furthermore, since the length of the intermediate walkway is adjustable, in order to accommodate the lengths of the first moving part 231 and the second moving part 232 of the intermediate walkway, the second step platform 24 includes at least a plurality of separate step members 241, which are arranged in a single sequence along the length of the locomotive underframe. When the length of the intermediate walkway increases, by adding separate step members 241, the step members 241 can fill the sides of the first moving part 231 and / or the second moving part 232, preventing large gaps from causing operators to fall, thereby ensuring the personal safety of the operators.

[0048] Specifically, such as Figure 5 The diagram shows the central walkway 2, comprising a first movable platform 21, a second movable platform 22, and a third movable platform 23. Both the first and second movable platforms 21 and 22 include a third movable section 211 and a fourth movable section 212, which are mounted on the ground. The third and fourth movable sections 211 and 212 are symmetrically arranged along the central axis of the locomotive underframe. Each of the first and second movable platforms 21 and 22 has two layers. Both platforms are equipped with slotted components (i.e., angle steel), allowing for the installation of step components 241 as needed. The third movable platform 23 is located between the first and second movable platforms 21 and is mounted on the ground. The third movable platform 23 has one layer. Figure 6As shown, the third moving platform 23 includes a first moving part 231 and a second moving part 232. Four first lifting cylinders 26 are installed below the first moving part 231. The cylinder bodies of the first lifting cylinders 26 are installed on the ground, and the output ends of the first lifting cylinders 26 are connected to the first moving part 231 through flanges. The cylinder bodies of the second lifting cylinders 27 are installed on the rotating ring, and the cylinder bodies of the second lifting cylinders 27 are connected to the second moving part 232 to lift the second moving part 232. The first connecting part and the third connecting part are not connected, and the second connecting part and the fourth connecting part are not connected. This allows for adjustment of about 0-300mm according to the width of the locomotive underframe, and can form three planes: high, medium, and low. The highest plane is used for welding, walking, climbing the upper plane of the underframe, and disassembling tooling half-rings around the locomotive underframe. The medium plane acts as a step. The low plane is used for welding the underframe facade. The high, medium, and low planes work together to form a gentle slope to prevent falls. Two fourth moving parts 212 are symmetrically arranged. Wheels are installed at the bottom of each fourth moving part 212, allowing it to roll on the ground. One end of each fourth moving part 212 is inserted into the first slot of the adjacent third moving part 211, and the other end is connected to the movable rotating ring 200. Because the first moving part 231 and the third moving part 211 are designed as hollow structures, the second moving part 232 can be inserted entirely into the first moving part 231, and the fourth moving part 212 can be inserted entirely into the third moving part 211. This ensures that the third moving platform 23 can move along with the movable rotating ring 200 in the length direction. This design ensures that the length of the central walkway 2 is adjustable, thus ensuring the length adjustment of the locomotive underframe working walkway. Figure 6 As shown, a moving wheel 234 is installed at one end of the second moving part 232. This end is inserted into the first moving part 231. The moving wheel 234 can roll on the moving guide plate 233 of the first moving part 231. This end can rise and fall with the raising and lowering of the third moving end. Figure 7As shown, one end of the fourth moving end is connected to the movable rotating ring 200. This end has three flanges at its lower end, which are respectively connected to two guide rods 252 and a second lifting cylinder 27 mounted on the movable rotating ring 200. The guide rods 252 can slide up and down within the guide sleeves 251 mounted on the movable rotating ring 200, serving a guiding function. The second cylinder can raise and lower this end. Because the first moving part 231 is also designed as a hollow structure, the second moving part 232 can be inserted entirely into the first moving part 231, thus ensuring that the second moving part 232 can move along with the movable rotating ring in the length direction, thereby ensuring the length adjustment of the locomotive underframe work platform. Simultaneously, the second moving part 232 can also be raised and lowered. The connection between the second moving part 232 and the movable rotating ring 200 is a longitudinal hinge. In this configuration, the other end of the second moving part 232 is inserted into the first moving part 231. There are gaps around the second moving part 232, thus the asynchronous lifting and lowering of the first moving part 231 and the second moving part 232 can be offset by the aforementioned method. The fourth moving part 212 and the second moving part 232 also form a three-layer plane. Slots (i.e., angle steel) are also installed on the two fourth moving parts 212, allowing the installation of step pieces 241, thereby forming a four-layer plane. The step pieces 241 adopt an N-part split design, which can be added or removed during the extension and retraction of the central walkway 2. Another function of the step pieces 241 is to fill the gap between the fourth moving part 212 and the second moving part 232. The guardrail 4 on the fourth moving part 212 adopts a plug-in design, which can be added or removed during the extension and retraction of the walkway.

[0049] like Figure 8 The movable platform 3 shown includes a first driven platform 31, a second driven platform 32, and a third driven platform 33. The structure and function of the movable platform 3 are similar to those of the fixed platform 1. The difference is that the bottom of the first driven platform 31, the second driven platform 32, and the third driven platform 33 are equipped with wheels 35. One end of the movable platform 3 is connected to the movable rotating ring 200 and can move with the movable rotating ring 200, thereby ensuring that the length of the entire locomotive underframe working platform is adjustable.

[0050] To prevent operators from falling from the working walkway on the locomotive underframe, guardrails 4 and ladders 5 are installed on the side of the first fixed platform 11, the second fixed platform 12, the third fixed platform 13, the first moving platform 21, the second moving platform 22, the third moving platform 23, the first driven platform 31, the second driven platform 32, and the third driven platform 33 away from the locomotive underframe. The guardrails 4 prevent operators from falling from the first fixed platform 11, the second fixed platform 12, the first moving platform 21, the second moving platform 22, the first driven platform 31, and the second driven platform 32. The ladders 5 assist operators in climbing onto the first fixed platform 11, the second fixed platform 12, the first moving platform 21, the second moving platform 22, the first driven platform 31, and the second driven platform 32.

[0051] Since the fixed end walkway 1, the middle walkway 2 and the movable walkway 3 are all located on both sides of the rotating ring, in order to avoid the rotating ring and prevent the space between the fixed end walkway 1, the middle walkway 2 and the movable walkway 3 and the rotating ring from being too large, the fixed end walkway 1, the middle walkway 2 and the movable walkway 3 are all provided with clearance grooves 6. The clearance grooves 6 can improve the compactness of the locomotive underframe working walkway.

[0052] For example, the initial distance between the fixed rotating ring 100 and the movable rotating ring 200 is A. The locomotive underframe requires a distance B between the fixed rotating ring 100 and the movable rotating ring 200. As needed, some plug-in guardrails 4 and some step pieces 241 of the fourth movable part 212 and the second movable part 232 are removed. The power is turned on and the movable rotating ring 200 is moved. When the distance between the fixed rotating ring 100 and the movable rotating ring 200 is B, the movement stops. At this time, the middle walkway 2 changes by |AB|, and the total length of the walkway also changes by |AB|. The gap between the guardrail 4 of the third movable part 211 and the guardrail 4 on the fourth movable part 212 is blocked by iron chains. The first step platform 14 and the raising platform 15 ensure that the front end plate of the locomotive underframe can fall into the gap pit created between the two sets of first step platforms 14, and ensure that it can fall into the gap pit created between the two sets of raising platforms 15. The locomotive underframe... The frame is hoisted onto two semi-rings, and the other two semi-rings are hoisted onto them. The first lifting cylinder 26 and the second lifting cylinder 27 are activated to raise the first moving part 231 and the second moving part 232 to a suitable height. The workers enter the highest surface of the locomotive underframe working platform to carry out work on the upper and lower planes of the underframe and the perimeter of the underframe. The first lifting cylinder 26 and the second lifting cylinder 27 are activated to lower the first moving part 231 and the second moving part 232 to the lowest surface. The rotating ring is rotated to place the locomotive underframe in an upright position. The workers enter the lowest surface of the locomotive underframe working platform to carry out work on the vertical surface of the locomotive underframe. The rotating ring turns the back of the locomotive underframe upward. The first lifting cylinder 26 and the second lifting cylinder 27 are activated to raise the first moving part 231 and the second moving part 232 to a suitable height. The workers enter the highest surface of the locomotive underframe working platform to carry out work on the lower plane of the locomotive underframe and the perimeter of the locomotive underframe.

[0053] When the distance between the fixed rotating ring 100 and the movable rotating ring 200 needs to be C, the power is turned on to move the movable rotating ring 200. When the distance between the two rotating rings is C, the movement stops. If necessary, a fourth moving part 212 is added. Part of the fourth moving part 212 has plug-in guardrails 4 and part of the step parts 241. At this time, the length of the middle platform 2 changes by |BC|, and the total length of the middle platform 2 also changes by |BC|. The gap between the guardrails 4 of the third moving part 211 and the guardrails 4 of the second moving part 232 is blocked by iron chains. Adjust the step parts 241 and the raising platform 15 to ensure that the front end plate of the locomotive underframe can fall into the gap pit generated between the two sets of first step platforms 14, and to ensure that it can fall into the gap pit generated between the two sets of raising platforms 15.

[0054] For example, the distance between the fixed swivel 100 and the movable swivel 200 is 13.6 meters, and the required distance between the fixed swivel 100 and the movable swivel 200 for the locomotive underframe is 8.6 meters. As needed, some plug-in guardrails 4 and some step pieces 241 of the fourth movable part 212 and the second movable part 232 are removed. The power is turned on to move the movable swivel 200. Movement stops when the distance between the fixed swivel 100 and the movable swivel 200 reaches 8.6 meters. At this time, the central walkway 2 is also shortened by 5 meters, and the total length of the walkway is also shortened by 5 meters. The gap between the guardrail 4 of the third movable part 211 and the guardrail 4 on the fourth movable part 212 is blocked by iron chains. The first step platform 14 and the raising platform 15 ensure that the front end plate of the locomotive underframe can fall into the gap pit created between the two sets of first step platforms 14, and ensure that it can fall into the gap pit created between the two sets of raising platforms 15. In the gap pit; the underframe is hoisted onto two half-rings, and the other two half-rings are hoisted onto them. The first lifting cylinder 26 and the second lifting cylinder 27 are activated to raise the first moving part 231 and the second moving part 232 to a suitable height. The operator enters the highest surface of the locomotive underframe working platform to carry out work on the upper and lower planes of the underframe and the perimeter of the underframe. The first lifting cylinder 26 and the second lifting cylinder 27 are activated to lower the first moving part 231 and the second moving part 232 to the lowest surface. The rotating ring is rotated to place the underframe in an upright position. The operator enters the lowest surface of the locomotive underframe working platform to carry out work on the vertical surface of the underframe. The rotating ring is rotated to turn the back of the underframe upward. The first lifting cylinder 26 and the second lifting cylinder 27 are activated to raise the first moving part 231 and the second moving part 232 to a suitable height. The operator enters the highest surface of the locomotive underframe working platform to carry out work on the lower plane of the locomotive underframe and the perimeter of the underframe.

[0055] When the distance between the rotating rings needs to be 10 meters, the power is turned on to move the rotating rings. When the distance between the two rotating rings is 10 meters, the movement stops. If necessary, a fourth moving part 212 is added. The fourth moving part 212 has some plug-in guardrails 4 and some step parts 241. At this time, the middle walkway 2 is extended by 1.4 meters, and the total length of the walkway is also extended by 1.4 meters. The gap between the guardrails 4 of the third moving part 211 and the guardrails 4 of the second moving part 232 is blocked by iron chains. The first step platform 14 and the heightening platform 15 are adjusted to ensure that the front plate of the locomotive underframe can fall into the gap pit generated between the two sets of first step platforms 14 and the gap pit generated between the two sets of heightening platforms 15.

[0056] The use of this locomotive underframe work platform ensures safe operation across the entire range of locomotive underframes of various lengths and widths. The locomotive underframe work platform can automatically extend or shorten with the 200-degree movable swivel. With this locomotive underframe work platform, safe operation can be achieved without safety ropes when the underframe is in a 0° or 180° position, preventing violations of operating procedures. At the same time, it can greatly improve work efficiency, making up for the lack of a full-length work platform available in China, and has high commercial promotion value.

[0057] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A locomotive underframe service walkway characterized by, The utility model relates to a kind of movable walkway of locomotive, including: Fixed end walkway (1), including first fixed platform (11), second fixed platform (12) and third fixed platform (13), the first fixed platform (11) and the second fixed platform (12) are arranged symmetrically along the central axis of the locomotive chassis length direction, the third fixed platform (13) is arranged in the area enclosed by the first fixed platform (11) and the second fixed platform (12), the first fixed platform (11) and the second fixed platform (12) are provided with first stepped platform (14) to the side of third fixed platform (13), and the first stepped platform (14) extends along the locomotive chassis length direction; Middle walkway (2), including first mobile platform (21), second mobile platform (22) and third mobile platform (23), the third mobile platform (23) is between the first mobile platform (21) and the second mobile platform (22), the first mobile platform (21) and the second mobile platform (22) are provided with second stepped platform (24) to the side of third mobile platform (23), and the second stepped platform (24) extends along the locomotive chassis length direction; Mobile walkway (3), including first driven platform (31), second driven platform (32) and third driven platform (33), the first driven platform (31) and the second driven platform (32) are arranged symmetrically along the central axis of the locomotive chassis length direction, the third driven platform (33) is arranged in the area enclosed by the first driven platform (31) and the second driven platform (32), the first driven platform (31) and the second driven platform (32) are provided with third stepped platform (34) to the side of third driven platform (33), and the third stepped platform (34) extends along the locomotive chassis length direction.

2. The locomotive underframe service walkway of claim 1, wherein, The third mobile platform (23) includes first mobile part (231) and second mobile part (232), the bottom of the first mobile part (231) is provided with mobile guide plate (233), the bottom of the second mobile part (232) is provided with mobile wheel (234), the second mobile part (232) is inserted into the first mobile part (231), and the mobile wheel (234) is located on the mobile guide plate (233) and can slide on the mobile guide plate (233).

3. The locomotive underframe service walkway of claim 2, wherein, The middle walkway (2) is also provided with first lifting cylinder (26) and second lifting cylinder (27), the output end of the first lifting cylinder (26) is connected with the first mobile part (231) to lift the first mobile part (231), and the output end of the second lifting cylinder (27) is connected with the second mobile part (232) to lift the second mobile part (232).

4. The locomotive underframe service walkway of claim 3, wherein, The middle walkway (2) further includes guide structure (25), the guide structure (25) includes guide sleeve (251) and guide rod (252), the outer side wall of the guide sleeve (251) is fixed to the movable swivel ring clamping the locomotive chassis, the guide rod (252) is arranged in the guide sleeve (251), and one end of the guide rod (252) is fixedly connected with the second mobile part (232).

5. The locomotive underframe service walkway of claim 1, wherein, The first mobile platform (21) and the second mobile platform (22) each comprise a third mobile part (211) provided with a first slot and a fourth mobile part (212) inserted into the first slot, and the fourth mobile part (212) is provided with a pulley at the bottom of one end of the third mobile part (211).

6. The locomotive underframe service walkway of claim 1, wherein, The bottom of the first driven platform (31), the second driven platform (32) and the third driven platform (33) is provided with a walking wheel (35).

7. The locomotive underframe service walkway of claim 1, wherein, The first step platform (14), the second step platform (24) and the third step platform (34) each comprise a slot part and a step part (241), and the first fixed platform (11), the second fixed platform (12), the first mobile platform (21), the second mobile platform (22), the first driven platform (31) and the second driven platform (32) are provided with the slot part on one side of the locomotive chassis, and the step part (241) is inserted into the slot part arranged in an upper and lower interval.

8. The locomotive underframe service walkway of claim 7, wherein, The second step platform (24) comprises at least a plurality of split step parts (241), and the plurality of split step parts (241) are arranged in one direction along the length of the locomotive chassis.

9. The locomotive underframe service walkway of claim 1, wherein, The first fixed platform (11), the second fixed platform (12), the third fixed platform (13), the first mobile platform (21), the second mobile platform (22), the third mobile platform (23), the first driven platform (31), the second driven platform (32) and the third driven platform (33) are provided with a guardrail (4) and a climbing ladder (5) on the side away from the locomotive chassis.

10. The locomotive underframe service walkway of claim 1, wherein, The fixed end walk platform (1), the middle walk platform (2) and the mobile walk platform (3) are each provided with an avoiding slot (6).

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