A kind of auxiliary device for heavy-duty wheel lathe is suitable for internal combustion engine wheel pair grinding

Abstract

The utility model discloses an internal combustion locomotive wheel pair turning and cutting auxiliary device suitable for heavy type wheel turning lathe, which comprises a shifting lever groove seat, an S-shaped shifting lever and a gear box support frame. The shifting lever is connected with the wheel pair and the lathe turntable, and the support frame stabilizes the gear box, so that the turning and cutting processing is realized without disassembling the gear box. The device has simple structure and low cost, effectively expands the function of the lathe and improves the maintenance efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of locomotive maintenance equipment, specifically relating to an auxiliary device for turning wheelsets of internal combustion locomotives suitable for heavy-duty wheel turning lathes. Background Technology

[0002] The wheel flange dimensions of diesel locomotive wheelsets are crucial inspection parameters for locomotives. Long-term wear can cause the wheel flange dimensions to exceed limits, posing a risk of derailment. The quality of the flange dimensions directly impacts the operational safety of diesel locomotives. Using a heavy-duty lathe for wheel turning is one method to restore the designed flange dimensions. Currently, lathes used for turning molten iron wheelsets can only turn molten iron wheelsets. However, the outer axle of a diesel locomotive wheel is 70mm longer than that of a molten iron wheel, making it impossible to clamp the lathe jaws and thus preventing the machining of locomotive wheelsets. Furthermore, traditional wheel turning lathes require the gearbox to be removed for machining.

[0003] In other words, the flange dimensions of diesel locomotive wheelsets are a crucial parameter for the safe operation of locomotives. Long-term wear can lead to flange exceeding limits, increasing the risk of derailment. Traditional heavy-duty wheel turning lathes cannot clamp diesel locomotive wheelsets (whose outer axles are 70mm longer than those of molten iron wheelsets) due to the limitations of the chucks, and require the gearbox to be disassembled for processing, resulting in low efficiency and high labor intensity.

[0004] Therefore, in view of the technical problems and defects of the traditional heavy-duty wheel turning lathe, such as the inability to clamp internal combustion engine wheelsets due to the limitation of the chucks, and the need to disassemble the gearbox for processing, resulting in low efficiency and high labor intensity, there is an urgent need to design and develop an auxiliary device for turning internal combustion engine wheelsets suitable for heavy-duty wheel turning lathes. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary device for turning wheels of an internal combustion engine on a heavy-duty turning lathe; enabling the heavy-duty turning lathe to have the function of turning wheels of an internal combustion engine, and avoiding the need to disassemble the gearbox.

[0006] The purpose of this utility model is achieved as follows: the device includes a lever slot seat welded from a steel pipe and a steel plate base, the side wall of the steel pipe having threaded holes, and the base being fixed to the lathe turntable by bolts; a lever in the shape of an S-shaped bent round steel, with both ends connected to the spoke holes of the wheelset and the lever slot seat respectively; and a gearbox support frame welded from channel steel, with a support surface on the top.

[0007] This utility model provides an auxiliary device for turning wheelsets of internal combustion engines, suitable for heavy-duty turning lathes. It can increase the turning function of internal combustion engine wheelsets and can complete the turning of internal combustion engine wheelsets without disassembling the axle gearbox, thereby ensuring that the wheel flange size is within the standard range and greatly reducing labor intensity.

[0008] In other words, this solution enables the turning of internal combustion engine wheelsets without modifying the main lathe structure; the support frame stabilizes the gearbox, preventing vibration caused by uneven weight distribution during machining; the lever and center work together to ensure balanced force on the wheelset, improving machining accuracy; the device is easy to assemble and disassemble, inexpensive, and significantly shortens the maintenance cycle. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the lever structure of an auxiliary device for turning wheels of an internal combustion engine wheel set, applicable to a heavy-duty turning lathe, according to the present invention. Figure 2 This is a schematic diagram of the lever slot seat structure of an auxiliary device for turning wheels of an internal combustion engine wheel set applicable to a heavy-duty turning lathe according to the present invention. Figure 3 This is a schematic diagram of the gearbox support frame structure of an auxiliary device for turning wheels of an internal combustion engine wheel set applicable to a heavy-duty turning lathe according to the present invention. Figure 4 This is a partial connection structure diagram of an auxiliary device for turning wheels of an internal combustion engine wheel assembly, applicable to a heavy-duty turning lathe, according to the present invention. Figure 5 This is an exploded view of a partial connection structure of an auxiliary device for turning wheels of an internal combustion engine wheel assembly, applicable to a heavy-duty turning lathe, according to the present invention. In the diagram: 1- lever; 2- lever slot seat; 21- threaded hole; 3- gearbox support frame; 4- internal combustion engine wheelset. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this does not limit the present invention in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0011] like Figures 1-5 As shown, this utility model provides an auxiliary device for turning wheelsets of internal combustion engines suitable for heavy-duty wheel turning lathes. The device includes a lever slot seat welded from a steel pipe and a steel plate base, wherein the steel pipe has threaded holes on its side wall and the base is fixed to the lathe turntable by bolts; a lever in the shape of an S-shaped bent round steel, with its two ends connected to the spoke holes of the wheelset and the lever slot seat respectively; and a gearbox support frame welded from channel steel, with a support surface on the top.

[0012] The inner diameter of the steel pipe of the lever slot seat is 700mm, the wall thickness is 32mm, the length is 200mm, and the diameter of the threaded hole is 28mm.

[0013] The steel plate base measures 260mm × 260mm × 30mm and has three pairs of Φ28mm mounting holes.

[0014] The lever is a Φ60mm, 600mm long round steel bent into an S-shape, with one end ground to fit the spoke hole.

[0015] The gearbox support frame has support legs and pillars welded from #8 and #10 channel steel, with a height of 800mm. The top support surface of the support frame is a #12 channel steel with a length of 800mm.

[0016] The bottom dimensions of the support frame are 500mm × 500mm.

[0017] The lever and lever slot are fixed together by Φ28mm bolts. The bending radius of the lever is adapted to the distance between the locomotive wheelset spokes and the lathe turntable.

[0018] The welding position of the lever slot seat is 150mm from the end of the steel pipe.

[0019] Specifically, in this embodiment of the invention, an auxiliary device for turning wheels on a lathe is designed and manufactured. In this device, the lever slot seat is welded and fixed to the lathe turntable with bolts; the lever is inserted into the spoke hole and slot seat of the wheelset, and the bolts are tightened; the support frame is adjusted to the bottom of the gearbox and fixed, and the center pin presses against the end of the wheelset shaft; the lathe is started, and the lever drives the wheelset to rotate to complete the turning. This solves the technical problem that heavy lathes cannot process internal combustion engine wheelsets, and at the same time, it allows for the turning of internal combustion engine wheelsets without disassembling the axle gearbox.

[0020] (1) Making the lever slot seat: Take a steel pipe with an inner diameter of 700mm, a wall thickness of 32mm and a length of 200mm. After welding, drill a ∅28mm hole at a position 150mm from one end and tap the thread; weld the end at a position 150mm from the hole to a 260mm×260mm×30mm steel plate base; drill 3 pairs of ∅28 holes on the steel plate base according to the position of the lathe turntable clamping slot, and fix it to the lathe turntable clamping slot with 4 ∅28 bolts. Tighten the bolts to complete the making of the lever slot seat.

[0021] (2) Making the lever: Take a round steel bar with a diameter of 60mm and a length of 600mm, heat the round steel bar with an oxyacetylene torch, and then use a manual hydraulic pipe bending machine to bend the two arcs of the required S shape at the corresponding position according to the design drawings. Then use a grinder to grind the spoke end of the machine wheel to complete the making of the lever.

[0022] (3) Fabricate a support frame for the axle gearbox of the locomotive wheelset turning: Measure the distance from the axle gearbox machining position to the workbench, design and draw up the drawings, and weld a 500mm x 500mm x 800mm support foot and column using 10# and 8# channel steel. Use a 12# channel steel with a length of 800mm as the support surface and weld it to the top to support the axle gearbox.

[0023] (4) Verification of use: Insert the ground end of the lever into the spoke hole of the locomotive wheel set that is aligned with the lathe center, and insert the unground end into the lever slot seat. Then fix the lever with a ∅28 bolt to replace the chuck and drive the internal combustion engine wheel set to rotate. The two ends of the wheel set are fixed by the center to ensure that the wheel set is balanced during the turning process. Ensure that the lever is stressed on the entire side of the wheel set. At the same time, the gearbox is stably supported by the support frame to ensure that the unbalanced and irregular axle gearbox will not be affected by the movement of the flange during the machining process.

[0024] This utility model provides an auxiliary device for turning wheelsets of internal combustion engines, suitable for heavy-duty turning lathes. It can increase the turning function of internal combustion engine wheelsets and can complete the turning of internal combustion engine wheelsets without disassembling the axle gearbox, thereby ensuring that the wheel flange size is within the standard range and greatly reducing labor intensity.

[0025] In other words, this solution enables the turning of internal combustion engine wheelsets without modifying the main lathe structure; the support frame stabilizes the gearbox, preventing vibration caused by uneven weight distribution during machining; the lever and center work together to ensure balanced force on the wheelset, improving machining accuracy; the device is easy to assemble and disassemble, inexpensive, and significantly shortens the maintenance cycle.

[0026] In other words, this design and fabrication provides an auxiliary device that solves the problem of heavy-duty lathes being unable to machine internal combustion engine wheelsets, while enabling the turning of internal combustion engine wheelsets without disassembling the axle gearbox. Furthermore, this invention is simple, has low modification costs, reduces labor intensity, shortens maintenance cycles, and improves work efficiency.

Claims

1. An auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty turning lathe, characterized in that, The device comprises a steel pipe welded to a steel plate base, the steel pipe having threaded holes on its sidewalls, and the base being fixed to a lever slot seat on a lathe turntable by bolts. And a lever in the shape of an S-shaped bent round steel, with the two ends connected to the spoke holes of the wheelset and the lever slot seat respectively; and a gearbox support frame with a support surface on top, made of channel steel.

2. The auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty turning lathe according to claim 1, characterized in that, The inner diameter of the steel pipe of the lever slot seat is 700mm, the wall thickness is 32mm, the length is 200mm, and the diameter of the threaded hole is 28mm.

3. The auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty turning lathe according to claim 1, characterized in that, The steel plate base measures 260mm × 260mm × 30mm and has three pairs of Φ28mm mounting holes.

4. The auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty turning lathe according to claim 1, characterized in that, The lever is made of Φ60mm, 600mm long round steel bent into an S shape, with one end ground to fit the spoke hole.

5. The auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty turning lathe according to claim 1, characterized in that, The support legs and pillars of the gearbox support frame are welded from No. 8 and No. 10 channel steel, with a height of 800mm.

6. A turning auxiliary device for internal combustion engine wheelsets suitable for heavy-duty turning lathes according to claim 1 or 5, characterized in that, The top support surface of the support frame is a No. 12 channel steel with a length of 800mm.

7. The auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty turning lathe according to claim 6, characterized in that, The bottom dimensions of the support frame are 500mm × 500mm.

8. A turning auxiliary device for internal combustion engine wheelsets suitable for heavy-duty turning lathes according to claim 1 or 4, characterized in that, The lever and lever slot are fixed together by Φ28mm bolts.

9. The auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty wheel-turning lathe according to claim 8, characterized in that, The bending radius of the lever is adapted to the distance between the wheelset spokes of the locomotive and the lathe turntable.

10. An auxiliary device for turning wheelsets of an internal combustion engine on a heavy-duty wheel-turning lathe according to claim 1 or 2, characterized in that, The welding position of the lever slot seat is 150mm from the end of the steel pipe.

Images