Gearbox moving tool trolley

Abstract

This utility model discloses a gearbox mobile tooling trolley, belonging to the field of gearbox repair. It includes a support plate, with a first adjustment mechanism on the top surface of the support plate. The first adjustment mechanism includes a screw knob, a moving plate, an adjustment plate, and a pin plate. Screw knobs are movably connected to the side walls of the bottom plates on both sides of the support plate. The screw knobs are also movably connected to the connecting plate on the bottom surface of the moving plate via a rotating block at their inner end. Through the second adjustment mechanism, the height of the tooling trolley can be conveniently adjusted. The operator only needs to rotate the adjustment knob to drive the screw rod to rotate, thereby causing the lifting seat to rise and fall smoothly along the vertical sliding opening, accurately matching the height requirements of different gearbox models. This eliminates the reliance on auxiliary equipment such as forklifts and hydraulic jacks in traditional tooling, saving equipment investment costs and avoiding safety hazards caused by multiple lifting operations, significantly improving operational safety and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gearbox repair, and in particular to a gearbox mobile tooling trolley. Background Technology

[0002] Wheelsets are key components of the subway running gear, directly contacting the track to propel the train. During subway operation, wheelsets are subjected to strong impacts from the track, operating in a harsh environment and prone to malfunctions. Their performance affects train operation safety, thus requiring regular inspection. The bogie, as the carrier of the wheelsets, is an important component of the train running gear system. With the increase in subway train operation and mileage, the demand for bogie and wheelset maintenance is increasing. Maintenance requires disassembling and moving wheelsets with gearboxes. However, the uneven weight distribution of the gearboxes, with the center of gravity not on the axle, generates eccentric torque, making movement of the wheelset gearbox on the track difficult and increasing labor intensity. Furthermore, the gearboxes must be supported during movement to ensure their stability and safety, preventing them from falling. If multiple processes such as axle box and bearing disassembly and cleaning are performed in different areas during wheelset maintenance, frequent relocation is necessary. Currently, mobile fixtures are used to insert bolt holes to support the wheelset gearboxes.

[0003] In the prior art, there is a Chinese utility model patent with publication number "CN218319029U" and patent name "A Transfer Fixture for Wheelset Gearbox of a Subway Vehicle". This patent describes a technical solution including "a directional wheel, a support base, a support plate, and a mounting seat. The mounting seat is set above the support base, the support plate is installed on the upper end of the support base, the directional wheel is installed on the lower end of the support base, and the mounting seat is a mounting groove with the support plate as the side, and one side of the mounting groove has no side plate".

[0004] However, in actual maintenance scenarios, this type of tooling reveals significant shortcomings. First, the fixed-height support base cannot accommodate the height differences of different gearbox models. When facing height changes, it is necessary to rely on auxiliary equipment such as forklifts and hydraulic jacks for lifting and adjustment. This not only significantly increases equipment procurement and maintenance costs but also introduces safety risks such as collisions and slippage due to repeated lifting operations, seriously threatening the safety of maintenance personnel and the integrity of the equipment. Second, the fixed-size mounting slot and pin hole design makes it difficult to accommodate the diverse specifications of gearbox anti-drop components. When the component size exceeds the preset range, the pin cannot be accurately aligned, and forced installation will cause damage to the threaded holes or failure of the tooling structure, resulting in a serious lack of tooling versatility and adaptability. These technical shortcomings significantly reduce the flexibility and reliability of tooling use, greatly hindering the efficient transfer and precise maintenance of gearboxes.

[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes a gearbox moving tooling trolley. Utility Model Content

[0006] The main objective of this invention is to provide a gearbox moving tooling trolley, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A gearbox moving tooling trolley includes a support plate. The top surface of the support plate is provided with a first adjustment mechanism, which includes a screw knob, a moving plate, an adjustment plate, and a pin plate. Screw knobs are movably connected to the side walls of the bottom plates on both sides of the support plate. The screw knobs are also movably connected to the connecting plate on the bottom surface of the moving plate through a rotating block at their inner end. The adjustment plate is fixedly connected to the moving plate by a fastening knob. The pin plate is inserted between the symmetrical adjustment plates. The bottom of the support plate is also provided with a second adjustment mechanism, which includes a concave seat, a threaded rod, a lifting seat, and a universal wheel. The concave seat is fixedly connected to the top surface of the support plate by triangular plates on both sides. The threaded rod is movably connected to the bottom of the fixed plate inside the concave seat through a rotating rod at the top end. The lifting seat is movably connected to the threaded rod through a nut in the top surface. The universal wheel is fixedly connected to the bottom end of the lifting seat.

[0009] Furthermore, a set of symmetrical base plates are fixedly installed on the bottom surface of the support plate, and a first screw hole is provided on the side wall of the base plate. A set of symmetrical transverse sliding openings are also provided on the top surface of the support plate.

[0010] Furthermore, the screw knob is threadedly connected to the first screw hole, and a rotating block is fixedly installed on the inner end of the screw knob. A connecting plate is fixedly installed on the bottom surface of the movable plate and passes through the transverse sliding opening. A groove is provided on the outer side wall of the connecting plate, and the rotating block is movably installed in the groove. Threaded short rods are also fixedly installed on the two side walls of the movable plate.

[0011] Furthermore, the side wall of the adjusting plate is provided with a fixing hole corresponding to the anti-detachment hole of the wheelset gearbox, and the pin plate is inserted into the fixing hole and passes through the anti-detachment hole of the wheelset gearbox. Vertical plates are also fixedly installed on both sides of the adjusting plate, and vertical adjustment ports are provided on the side walls of the vertical plates. The threaded short rod passes through the vertical adjustment port, and a second screw hole is provided on the side wall of the fastening knob and is threadedly connected to the threaded short rod through the second screw hole.

[0012] Furthermore, the concave seat is in an inverted state, and a set of symmetrical triangular plates are fixedly installed on the top of both sides of the concave seat. The triangular plates are fixedly installed on the bottom surface of the support plate. Vertical sliding openings are respectively opened on the left and right side walls of the concave seat, and a fixing plate is fixedly installed on the upper inside of the concave seat. The top surface of the fixing plate is opened with a rotation hole.

[0013] Furthermore, a rotating rod is fixedly installed at the top of the threaded rod, and the rotating rod is movably installed in the rotating hole. An adjusting knob is fixedly installed at the top of the rotating rod. A through vertical cavity is opened on the top surface of the lifting seat, and a nut is fixedly installed at the top of the interior of the vertical cavity. The nut is threadedly connected to the threaded rod. Slider blocks are fixedly installed at the top of the two side walls of the lifting seat, and the sliders are movably installed in the vertical sliding openings. A caster wheel is also fixedly installed at the bottom of the lifting seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this utility model, the height of the tooling trolley is conveniently adjusted through the second adjustment mechanism. The operator only needs to rotate the adjustment knob to drive the threaded rod to rotate, thereby driving the lifting seat to rise and fall smoothly along the vertical slide, accurately matching the height requirements of different gearbox models. This eliminates the reliance of traditional tooling on auxiliary equipment such as forklifts and hydraulic jacks, saving not only equipment investment costs but also avoiding safety hazards caused by multiple lifting operations, significantly improving operational safety and efficiency.

[0016] The first adjustment mechanism enables lateral and vertical adjustment of the fixed insertion hole position corresponding to the anti-detachment hole of the wheelset gearbox. By rotating the screw knob, the moving plate can be flexibly moved along the lateral sliding opening, allowing precise adjustment of the lateral position between the fixed insertion holes on the symmetrical adjustment plate according to the width of the anti-detachment component of the wheelset gearbox. At the same time, after loosening the fastening knob, the adjustment plate can slide freely along the threaded short rod within the vertical adjustment range, allowing flexible adjustment of the height of the fixed insertion hole according to the height of the anti-detachment hole on the wheelset gearbox anti-detachment component. This ensures that the tooling trolley can easily cope with the size differences of anti-detachment components of different gearboxes, ensuring precise docking between the pin plate and the anti-detachment hole, effectively avoiding the problem of thread hole deformation or tooling damage caused by forced installation, greatly improving the versatility and adaptability of the tooling, thereby not only improving the flexibility and reliability of tooling use, but also bringing convenience to the efficient transportation and precise maintenance of gearboxes. Attached Figure Description

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

[0018] Figure 2 This is a structural breakdown diagram of the first adjustment mechanism of this utility model;

[0019] Figure 3 This is a cross-sectional view of the connecting plate of this utility model;

[0020] Figure 4 This is a cross-sectional view of the second adjustment mechanism of this utility model.

[0021] In the diagram: 1. Support plate; 2. First adjustment mechanism; 3. Second adjustment mechanism; 4. Lateral slide; 5. Base plate; 6. First screw hole; 7. Screw knob; 8. Rotating block; 9. Moving plate; 10. Connecting plate; 11. Groove; 12. Threaded short rod; 13. Fastening knob; 14. Second screw hole; 15. Adjustment plate; 16. Fixed insertion hole; 17. Pin plate; 18. Vertical plate; 19. Vertical adjustment port; 20. Concave seat; 21. Triangular plate; 22. Vertical slide; 23. Fixed plate; 24. Rotating hole; 25. Threaded rod; 26. Rotating rod; 27. Adjustment knob; 28. Lifting seat; 29. ​​Vertical cavity; 30. Nut; 31. Slider; 32. Universal wheel. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0023] like Figures 1-4 As shown, a gearbox moving tooling trolley includes a support plate 1. The top surface of the support plate 1 is provided with a first adjusting mechanism 2, which includes a screw knob 7, a moving plate 9, an adjusting plate 15, and a pin plate 17. Screw knobs 7 are movably connected to the side walls of the bottom plates 5 on both sides of the bottom surface of the support plate 1. The screw knobs 7 are also movably connected to the connecting plate 10 on the bottom surface of the moving plate 9 via a rotating block 8 at their inner ends. The adjusting plate 15 is fixedly connected to the moving plate 9 via a fastening knob 13, and the pin plate 17 is inserted into the connecting plate 10. Between the symmetrical adjustment plates 15, the bottom of the support plate 1 is also provided with a second adjustment mechanism 3, and the second adjustment mechanism 3 includes a concave seat 20, a threaded rod 25, a lifting seat 28 and a universal wheel 32. The concave seat 20 is fixedly connected to the top surface of the support plate 1 by the triangular plates 21 on both sides, and the threaded rod 25 is movably connected to the bottom of the fixed plate 23 inside the concave seat 20 by the rotating rod 26 at the top. The lifting seat 28 is movably connected to the threaded rod 25 by the nut 30 in the top surface, and the universal wheel 32 is fixedly connected to the bottom end of the lifting seat 28.

[0024] like Figure 2 As shown, a set of left-right symmetrical base plates 5 are fixedly installed on the bottom surface of the support plate 1, and a first screw hole 6 is provided on the side wall of the base plate 5. The first screw hole 6 is used to cooperate with the rotating block 8 to realize the screw rotation operation. A set of left-right symmetrical transverse sliding mouths 4 are also provided on the top surface of the support plate 1. The transverse sliding mouths 4 are used to cooperate with the connecting plate 10 to realize the guide sliding operation.

[0025] like Figure 2 and Figure 3As shown, the screw knob 7 is threadedly connected to the first screw hole 6, and a rotating block 8 is fixedly installed on the inner end of the screw knob 7. A connecting plate 10 is fixedly installed on the bottom surface of the moving plate 9 and passes through the transverse sliding opening 4. A groove 11 is provided on the outer side wall of the connecting plate 10. The rotating block 8 is movably installed in the groove 11. Threaded short rods 12 are also fixedly installed on the two side walls of the moving plate 9. By rotating the screw knob 7, the screw knob 7 moves in the first screw hole 6 through the threaded transmission, thereby driving the rotating block 8 to move in the groove 11, pushing the connecting plate 10 and the moving plate 9 to move along the transverse sliding opening 4, which can ensure that the width between the adjusting plates 15 is adapted to the width of the gearbox anti-drop component.

[0026] like Figure 2 As shown, the side wall of the adjusting plate 15 is provided with a fixing hole 16 corresponding to the anti-detachment hole of the wheelset gearbox, and the pin plate 17 is inserted into the fixing hole 16 and passes through the anti-detachment hole of the wheelset gearbox. Vertical plates 18 are also fixedly installed on the two side walls of the adjusting plate 15, and vertical adjustment ports 19 are provided on the side walls of the vertical plates 18. The threaded short rod 12 passes through the vertical adjustment port 19, and the side wall of the fastening knob 13 is provided with a second screw hole 14 and is threadedly connected to the threaded short rod 12 through the second screw hole 14. By moving the adjusting plate 15 up and down, the vertical plates 18 and the fixing hole 16 are moved to adjust the matching position of the fixing hole 16 and the anti-detachment hole of the wheelset gearbox. Then, the fastening knob 13 is tightened to fix the adjusting plate 15, and the pin plate 17 is inserted into the symmetrical fixing hole 16 and passes through the anti-detachment hole on the gearbox for fixation.

[0027] like Figure 2 As shown, the concave seat 20 is in an inverted state, and a set of symmetrical triangular plates 21 are fixedly installed on the top of both sides of the concave seat 20. The triangular plates 21 serve as a connection and support. The triangular plates 21 are fixedly installed on the bottom surface of the support plate 1. Vertical sliding openings 22 are opened on the left and right side walls of the concave seat 20. The vertical sliding openings 22 provide guidance for the subsequent movement of the lifting seat 28. A fixing plate 23 is fixedly installed on the upper part of the interior of the concave seat 20. A rotating hole 24 is opened on the top surface of the fixing plate 23. The rotating hole 24 on the top surface of the fixing plate 23 is used to cooperate with the rotating rod 26 to realize the rotation operation.

[0028] like Figure 4As shown, a rotating rod 26 is fixedly installed at the top of the threaded rod 25, and the rotating rod 26 is movably installed in the rotating hole 24. An adjusting knob 27 is fixedly installed at the top of the rotating rod 26. A through vertical cavity 29 is opened on the top surface of the lifting seat 28, and a nut 30 is fixedly installed at the top of the interior of the vertical cavity 29. The nut 30 is threadedly connected to the threaded rod 25. Slider blocks 31 are fixedly installed on the top of the two side walls of the lifting seat 28, and the sliders 31 are movably installed in the vertical sliding opening 22. A universal wheel 32 is also fixedly installed at the bottom of the lifting seat 28. By rotating the adjusting knob 27, the rotating rod 26 and the threaded rod 25 are driven to rotate in the rotating hole 24. The threaded transmission causes the nut 30 to drive the lifting seat 28 to rise and fall along the vertical sliding opening 22, thereby realizing the rise and fall of the universal wheel 32 to adapt to gearboxes of different heights.

[0029] The specific operating principle of this gearbox moving tooling trolley is as follows:

[0030] First, place the support plate 1 at the bottom of the gearbox anti-fall component that needs to be moved. Then, the operator manually rotates the screw knob 7 located on the outer side wall of the base plate 5 on both sides of the bottom surface of the support plate 1. Since the screw knob 7 is threadedly connected to the first screw hole 6 on the side wall of the base plate 5, during the rotation of the screw knob 7, the screw knob 7 will rotate in the first screw hole 6 and drive the rotating block 8 installed on its inner end to rotate in the groove 11 on the outer side wall of the connecting plate 10. At the same time, the rotation of the screw knob 7 will push the connecting plate 10 to slide in the transverse sliding opening 4 on the top surface of the support plate 1 through the rotating block 8. The sliding of the connecting plate 10 will drive the moving plate 9 fixed above it to move on the top surface of the support plate 1. The operator continues to rotate the screw knob 7 until the adjusting plate 15 above the moving plate 9 is in close contact with the two side walls of the gearbox anti-fall component. At this time, the width between the adjusting plates 15 can be initially adjusted according to the width of the gearbox anti-fall component.

[0031] Next, the operator moves the adjusting plate 15 upwards, so that the adjusting plate 15 moves upwards along the threaded short rods 12 installed on both sides of the moving plate 9 through the vertical adjustment holes 19 opened on the side walls of the vertical plates 18 on both sides. During the movement, the operator needs to closely observe whether the fixing holes 16 opened on the side walls of the adjusting plate 15 are aligned with the anti-drop holes opened on the gearbox anti-drop components and are in the same horizontal position. Once aligned, the operator can screw the fastening knob 13 into the threaded short rods 12 through the second screw hole 14 to fix the position of the adjusting plate 15. At this point, the operator has adjusted the height of the fixing holes 16 on the adjusting plate 15 according to the height of the anti-drop holes on the gearbox anti-drop components.

[0032] Subsequently, on one side of the gearbox anti-drop component, the operator inserts the pin plate 17 into the symmetrical fixing hole 16 and ensures that the pin plate 17 passes through the anti-drop hole on the gearbox anti-drop component. This step realizes the connection and fixation between the mobile tooling trolley and the gearbox anti-drop hole, providing stable support for subsequent mobile operations.

[0033] Then, the operator rotates the adjustment knob 27 located on the top of the fixed plate 23. The rotation of the adjustment knob 27 will drive the rotating rod 26 to rotate in the rotating hole 24 opened on the top surface of the fixed plate 23. The rotation of the rotating rod 26 will further drive the threaded rod 25 to rotate. Since the nut 30 installed in the vertical cavity 29 opened on the top surface of the lifting seat 28 is threadedly connected to the threaded rod 25, the lifting seat 28 will move downward along the threaded rod 25 through the nut 30 during the rotation of the threaded rod 25. During the movement of the lifting seat 28, the sliders 31 installed on the top of its two sides will slide in the vertical sliding mouths 22 opened on the two side walls of the concave seat 20 installed on the bottom surface of the support plate 1, ensuring that the movement of the lifting seat 28 is smooth and accurate. The operator continues to rotate the adjustment knob 27 until the universal wheel 32 installed at the bottom of the lifting seat 28 contacts the ground and reaches the required support height. At this time, the operator can adjust the support height of the mobile tooling trolley for the gearbox according to the height of the gearbox to ensure the stability and safety of the gearbox during the movement.

[0034] Finally, the operator pushes the mobile tooling trolley and uses the flexibility of the casters 32 to move the gearbox to a suitable position. During the movement, the operator must closely monitor the gearbox's condition to ensure it arrives at its destination smoothly and safely. This concludes the use of the mobile tooling trolley for the gearbox. This mobile tooling trolley can adapt to gearboxes of different sizes and heights, which not only improves the flexibility and reliability of tooling use, but also facilitates efficient transport and precise maintenance of gearboxes.

[0035] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A gearbox moving tooling trolley, comprising a support plate (1), characterized in that: The top surface of the support plate (1) is provided with a first adjustment mechanism (2), and the first adjustment mechanism (2) includes a screw knob (7), a moving plate (9), an adjustment plate (15) and a pin plate (17). The screw knob (7) is movably connected to the side wall of the bottom plate (5) on both sides of the bottom surface of the support plate (1), and the screw knob (7) is also movably connected to the connecting plate (10) on the bottom surface of the moving plate (9) through the rotating block (8) at the inner end. The adjustment plate (15) is fixedly connected to the moving plate (9) through the fastening knob (13), and the pin plate (17) is inserted between the symmetrical adjustment plates (15). The bottom of the support plate (1) is also provided with a second adjustment mechanism (3), and the second adjustment mechanism (3) includes a concave seat (20), a threaded rod (25), a lifting seat (28) and a universal wheel (32). The concave seat (20) is fixedly connected to the top surface of the support plate (1) by the triangular plates (21) on both sides, and the threaded rod (25) is movably connected to the bottom of the fixed plate (23) inside the concave seat (20) by the rotating rod (26) at the top. The lifting seat (28) is movably connected to the threaded rod (25) by the nut (30) in the top surface, and the universal wheel (32) is fixedly connected to the bottom end of the lifting seat (28).

2. The gearbox moving tooling trolley according to claim 1, characterized in that: The bottom surface of the support plate (1) is fixedly installed with a set of left and right symmetrical base plates (5), and the side wall of the base plate (5) is provided with a first screw hole (6). The top surface of the support plate (1) is also provided with a set of left and right symmetrical transverse sliding mouths (4).

3. The gearbox moving tooling trolley according to claim 2, characterized in that: The screw knob (7) is threadedly connected to the first screw hole (6), and a rotating block (8) is fixedly installed on the inner end of the screw knob (7). A connecting plate (10) is fixedly installed on the bottom surface of the moving plate (9) and passes through the transverse sliding opening (4). A groove (11) is provided on the outer side wall of the connecting plate (10). The rotating block (8) is movably installed in the groove (11). Threaded short rods (12) are also fixedly installed on the two side walls of the moving plate (9).

4. The gearbox moving tooling trolley according to claim 3, characterized in that: The side wall of the adjusting plate (15) is provided with a fixed insertion hole (16) corresponding to the anti-drop hole of the wheelset gearbox, and the pin plate (17) is inserted into the fixed insertion hole (16) and passes through the anti-drop hole of the wheelset gearbox. The two side walls of the adjusting plate (15) are also fixedly installed with vertical plates (18), and the side wall of the vertical plate (18) is provided with a vertical adjustment port (19). The threaded short rod (12) passes through the vertical adjustment port (19), and the side wall of the fastening knob (13) is provided with a second screw hole (14) and is threaded together with the threaded short rod (12) through the second screw hole (14).

5. A gearbox moving tooling trolley according to claim 4, characterized in that: The concave seat (20) is in an inverted state, and a set of symmetrical triangular plates (21) are fixedly installed on the top of both sides of the concave seat (20). The triangular plates (21) are fixedly installed on the bottom surface of the support plate (1). Vertical sliding openings (22) are opened on the left and right side walls of the concave seat (20), and a fixing plate (23) is fixedly installed on the upper inside of the concave seat (20). A rotating hole (24) is opened on the top surface of the fixing plate (23).

6. A gearbox moving tooling trolley according to claim 5, characterized in that: A rotating rod (26) is fixedly installed at the top of the threaded rod (25), and the rotating rod (26) is movably installed in the rotating hole (24). An adjusting knob (27) is fixedly installed at the top of the rotating rod (26). A through vertical cavity (29) is opened on the top surface of the lifting seat (28), and a nut (30) is fixedly installed at the top of the interior of the vertical cavity (29). The nut (30) is threadedly connected to the threaded rod (25). Slider blocks (31) are fixedly installed on the top of the two side walls of the lifting seat (28), and the sliders (31) are movably installed in the vertical sliding opening (22). A universal wheel (32) is also fixedly installed at the bottom of the lifting seat (28).

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