Lifting appliance adapter

Abstract

The application discloses a lifting appliance adapter for supporting and lifting a conical wall. The lifting appliance adapter comprises a lifting ring assembly, a hook and a pushing member. The lifting ring assembly is used for connecting the hook. The hook is pivotally arranged in the interior of the lifting ring assembly and used for clamping a flange edge of the conical wall. A first acting surface is arranged on the side of the hook away from the flange edge. The pushing member is pushed on the first acting surface and used for swinging the hook to clamp the flange edge of the conical wall. The lifting appliance adapter is inserted into a flange hole of the conical wall, the pushing member is used to swing the hook and clamp the flange edge, so that the lifting appliance adapter can stably and reliably clamp the conical wall, the hook of the lifting appliance is directly hooked on the lifting ring assembly, and then the lowering and lifting of the conical wall is realized. The lifting appliance adapter has simple structure, convenient use and high safety, can avoid the hand being squeezed by the conical wall, and can improve the safety of the lifting of the conical wall.

Description

Technical Field

[0001] This invention relates to the field of aircraft engines, and in particular to a lifting adapter. Background Technology

[0002] The low-pressure turbine rotor is a crucial component of an aero-engine. The low-pressure turbine rotor includes a supporting conical wall, which is a vital structural support component. Figure 1 As shown, the supporting conical wall 90 is a conical structure as a whole, the rear supporting journal is located in the conical cavity, the front end face 93 of the front flange edge 91 is located in the open space, and the rear end face 94 of the flange edge 91 is located in the conical cavity.

[0003] Before assembly or during troubleshooting disassembly, the dimensions and runout of the support cone wall 90 need to be measured. The measurement process requires operations such as flipping the support cone wall 90.

[0004] Currently, inspecting or measuring the conical cavity of the supporting conical wall 90 typically requires multiple people to lift it manually. The supporting conical wall 90 is quite heavy, making manual lifting difficult; furthermore, there is almost no gap between the supporting conical wall 90 and the supporting platform, making it difficult to remove hands in time. Any operational error could result in hand injury, posing a significant safety hazard. Additionally, the outer surface of the supporting conical wall 90 is a smooth conical surface, and the front end has a smooth flange edge 91 and a flange hole 92 within the flange edge 91, making it impossible for ordinary lifting tools to access the front end of the supporting conical wall 90. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the supporting cone wall is difficult to lift through the front end face, and to provide a lifting adapter device.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A lifting adapter is provided for lifting a support cone wall. The lifting adapter includes a lifting ring assembly, a hook, and a pusher. The lifting ring assembly is used to connect to the hook. The hook is pivotally mounted inside the lifting ring assembly and is used to engage the flange edge of the support cone wall. A first working surface is provided on the side of the hook away from the flange edge. The pusher pushes against the first working surface and is used to swing the hook to engage the flange edge of the support cone wall.

[0008] In this solution, by adopting the above structure, the lifting adapter is inserted into the flange hole of the supporting cone wall. A pushing component causes the hook to swing and engage the flange edge, thus enabling the lifting adapter to stably and reliably engage the supporting cone wall. The lifting hook then directly engages the lifting ring assembly, thereby lowering the supporting cone wall for lifting. The lifting adapter has a simple structure, is easy to use, and offers high safety. It prevents personnel from being squeezed by the supporting cone wall, improving the safety of lifting the supporting cone wall.

[0009] Preferably, the pusher is inserted into the ring assembly, and the pusher moves along the axis of the ring assembly to push the hook.

[0010] In this solution, by adopting the above structure and setting the pusher to move along the axis, the operation of the pusher is facilitated, and the hook can be easily locked onto the flange edge. This reduces the operational difficulty of the lifting adapter and improves the efficiency of lifting the support cone wall.

[0011] Preferably, the outer side of the pusher is provided with a second working surface, which is correspondingly provided with the first working surface.

[0012] In this solution, by adopting the above structure, the correspondingly set first and second action surfaces can better and more efficiently drive the hook to swing, thereby improving the installation efficiency of the lifting adapter.

[0013] Preferably, the first working surface protrudes in a direction away from the flange edge;

[0014] And / or, the second working surface protrudes toward the flange edge;

[0015] And / or, the second working surface is a cylindrical surface or a plane.

[0016] In this solution, by adopting the above structure, the movement distance of the hook can be increased, making it easier to better lock the flange edge; it can also reduce the cross-sectional area of ​​the hook in the non-working state, making it easier for the lifting adapter to be inserted into the flange hole.

[0017] Preferably, the lifting adapter further includes an inner core, the lifting ring assembly is sleeved on the inner core, and the hook is pivotally mounted on the lower end of the inner core.

[0018] In this solution, the above structure facilitates the connection of the hook, improves the stability of the hook, and simplifies the structural form of the lifting adapter.

[0019] Preferably, the outer side wall at the lower end of the inner core is provided with several notches, and the hook is pivotally disposed in the notches.

[0020] In this solution, by adopting the above structure, the compactness between the hook and the inner core can be improved, and the volume of the lifting adapter can be reduced.

[0021] Preferably, the upper sidewall of the inner core is provided with a slot, and the slot extends along the axial direction of the lifting ring assembly;

[0022] The lifting adapter also includes an anti-rotation shaft, one end of which is inserted into the pusher and the other end of which is inserted into the slot.

[0023] In this solution, by adopting the above structure, the anti-rotation shaft is inserted into the slot. When the lifting ring assembly is rotated, the inner core can be effectively prevented from rotating with the lifting ring, which can improve the stability of the hook, prevent the hook from accidentally detaching from the flange edge, and improve the reliability of the lifting adapter.

[0024] Preferably, the lifting adapter further includes a retractable member that acts on the hook and is used to bring the hook closer to the axis of the lifting ring assembly.

[0025] In this solution, by adopting the above structure, the retractable part causes the hook to retract, making it easy for the lifting adapter to be inserted into or removed from the flange hole.

[0026] Preferably, the retractable element is an elastic rope loop, which is sleeved on the hook;

[0027] Alternatively, the outer side of the hook is provided with a receiving groove, and the retractable member is engaged in the receiving groove.

[0028] In this solution, the elastic rope ring is easy to install and use due to the above structure. The receiving groove can prevent the shrink-wrap component from moving accidentally, improve its stability, and prevent it from being squeezed by the flange edge and hook, thus preventing accidental breakage and extending its service life.

[0029] Preferably, the lifting adapter further includes a reset member that acts on the pusher and pushes the pusher away from the hook.

[0030] In this solution, by adopting the above structure, the reset component facilitates the pushing component to move away from the hook, facilitates the hook to move away from the flange edge under the action of the retraction component, and facilitates the installation and disassembly of the lifting adapter.

[0031] Preferably, the pushing member is a stepped shaft, which is inserted into the lifting ring assembly; the stepped shaft is provided with a reset step, and the reset member acts on the reset step.

[0032] In this solution, by adopting the above structure, the reliability of the pusher can be improved and accidental damage to the pusher can be avoided.

[0033] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0034] The positive and progressive effects of this invention are as follows:

[0035] This invention involves inserting a lifting adapter into the flange hole of a supporting cone wall. A pushing component causes the hook to swing and engage the flange edge, allowing the lifting adapter to stably and reliably engage the supporting cone wall. The lifting hook then directly engages the lifting ring assembly, thus lowering the supporting cone wall for lifting. The lifting adapter has a simple structure, is easy to use, and offers high safety, preventing personnel from being squeezed by the supporting cone wall and improving the safety of lifting the supporting cone wall. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a supporting cone wall in the prior art.

[0037] Figure 2 This is a schematic diagram of the structure of the lifting adapter device installed on the supporting cone wall according to a preferred embodiment of the present invention.

[0038] Figure 3 for Figure 2 A schematic diagram of the structure of the lifting adapter and the supporting cone wall in partial cross-section.

[0039] Figure 4 for Figure 2 A schematic diagram of the lifting adapter device in the diagram.

[0040] Figure 5 for Figure 4 A cross-sectional structural schematic diagram of the lifting adapter device.

[0041] Figure 6 for Figure 4 The diagram shows a partial structure of the lifting adapter, including a pusher, a resetter, and an anti-rotation shaft.

[0042] Figure 7 for Figure 4 The diagram shows a partial structure of the lifting adapter, including the inner core, hook, pivot shaft, and retractable parts.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100 lifting adapter

[0045] Ring assembly 11

[0046] 12 Eyenuts

[0047] Shrinkage part 13

[0048] Elastic rope loop 14

[0049] Anti-rotation shaft 15

[0050] Reset component 16

[0051] Rings 17

[0052] Pivot 18

[0053] Core 20

[0054] Gap 21

[0055] Slot 22

[0056] Hook 30

[0057] Pivot Hole 31

[0058] Claw 32

[0059] Receiving slot 33

[0060] First working surface 34

[0061] Push component 40

[0062] Second working surface 41

[0063] Stepped axis 42

[0064] Reset step 43

[0065] Supporting cone wall 90

[0066] Flange edge 91

[0067] Flange hole 92

[0068] Front end 93

[0069] Back end face 94 Detailed Implementation

[0070] The present invention will be described more clearly and completely below by way of embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0071] like Figures 2 to 7As shown, this embodiment is a lifting adapter 100 used for lifting a support cone wall 90. The lifting adapter 100 includes: a lifting ring assembly 11, a hook 30, and a pusher 40. The lifting ring assembly 11 is used to connect to the hook. The hook 30 is pivotally mounted inside the lifting ring assembly 11 and is used to engage the flange edge 91 of the support cone wall 90. A first working surface 34 is provided on the side of the hook 30 away from the flange edge 91. The pusher 40 is pushed against the first working surface 34 and is used to swing the hook 30 to engage the flange edge 91 of the support cone wall 90. By inserting the lifting adapter 100 into the flange hole 92 of the support cone wall 90, and using the pusher 40 to swing the hook 30 and engage the flange edge 91, the lifting adapter 100 can stably and reliably engage the support cone wall 90. Then, the hook of the lifting device directly hooks the lifting ring assembly 11, thereby achieving the lowering and lifting of the support cone wall 90. The lifting adapter 100 has a simple structure, is easy to use, and is highly safe. It can prevent people's hands from being squeezed by the supporting cone wall 90 and improve the safety of lifting the supporting cone wall 90.

[0072] The pusher 40 is inserted into the lifting ring assembly 11, and moves along the axis of the lifting ring assembly 11 to push the hook 30. By setting the pusher 40 to move along the axis, it is easier to operate the pusher 40 and also easier for the hook 30 to engage the flange edge 91. This reduces the operational difficulty of the lifting adapter 100 and improves the lifting efficiency of the support cone wall 90.

[0073] The outer side of the pusher 40 is provided with a second working surface 41, which is correspondingly provided with the first working surface 34. The correspondingly provided first working surface 34 and second working surface 41 can better and more efficiently push the hook 30 to swing, thereby improving the installation efficiency of the lifting adapter 100.

[0074] In one embodiment, the pusher 40 can be a stepped shaft 42, with a second working surface 41 on the outer side of its lower end. The second working surface 41 is a cylindrical surface. The upper end of the stepped shaft 42 passes through the eye nut 12, and the upper end of the stepped shaft 42 is exposed on the outside of the eye nut 12, facilitating pressing or manual support of the stepped shaft 42. By pressing down on the stepped shaft 42, the second working surface 41 can press against the first working surface 34, thereby pushing the hook 30 to swing, and thus the hook 30 can lock onto the flange edge 91.

[0075] In other embodiments, the hook 30 can be pushed to swing by lifting the stepped shaft 42 upward, with the second action surface 41 pressing against the first action surface 34, thereby enabling the hook 30 to lock onto the flange edge 91.

[0076] In one implementation, the first working surface 34 protrudes in a direction away from the flange edge 91, which can increase the moving distance of the hook 30 and make it easier to better lock the flange edge 91; it can also reduce the cross-sectional area of ​​the hook 30 in the non-working state, making it easier for the lifting adapter 100 to be inserted into the flange hole 92.

[0077] In other embodiments, the second action surface 41 may also bulge towards the flange edge 91. For example, the second action surface 41 may bulge outward from the outer side of the pusher 40. Specifically, the second action surface 41 may be a sphere, an ellipsoid, or other curved surface. Of course, the second action surface 41 may also be a cylindrical surface or a plane.

[0078] The pivot hole 31 of the hook 30 is a round hole. By inserting the pivot shaft 18, the hook 30 can swing around the pivot shaft 18.

[0079] The lower end of the hook 30 has a claw 32, which extends outward from the side of the hook 30 and is used to abut against the flange edge 91 of the supporting cone wall 90 from bottom to top. The claw 32 can further improve the stability and safety of the supporting cone wall 90 during the hoisting process.

[0080] like Figure 5 and Figure 7 As shown, the hook 30 can be C-shaped overall, with the first working surface 34 located on the raised surface of the C. The hook 30 has a slot on its side. The bottom of the hook 30 has a claw 32. The claw 32 can engage the lower side of the flange edge 91.

[0081] In this embodiment, there are three hooks 30, which are evenly spaced along the circumference of the inner core 20. The three hooks 30 are back-to-back, and the pusher 40 is inserted between the three hooks 30. The pusher 40 moves downward, which can push the three hooks 30 to move synchronously until the three hooks 30 are engaged with the flange edge 91. In other embodiments, the number of hooks 30 can also be other values, such as 2, 4, etc.

[0082] like Figure 7 As shown, the lifting adapter 100 also includes an inner core 20, a lifting ring assembly 11 sleeved on the inner core 20, and a hook 30 pivotally mounted on the lower end of the inner core 20, which facilitates the connection of the hook 30, improves the stability of the hook 30, and simplifies the structural form of the lifting adapter 100.

[0083] exist Figure 7 In the middle, the outer side wall at the lower end of the inner core 20 is provided with several notches 21, and the hook 30 is pivotally mounted in the notches 21, which can improve the compactness between the hook 30 and the inner core 20 and reduce the volume of the lifting adapter 100.

[0084] The upper side wall of the inner core 20 is provided with a slot 22, which extends along the axial direction of the lifting ring assembly 11. The lifting adapter 100 also includes an anti-rotation shaft 15, one end of which is inserted into the pusher 40, and the other end of which is inserted into the slot 22. The anti-rotation shaft 15 is inserted into the slot 22, which can effectively prevent the inner core 20 from rotating with the lifting ring assembly 11 when the lifting ring assembly 11 is rotated, thereby improving the stability of the hook 30, preventing the hook 30 from accidentally disengaging from the flange edge 91, and improving the reliability of the lifting adapter 100.

[0085] In this embodiment, the anti-rotation shaft 15 is installed in the radial through hole at the middle position of the stepped shaft 42, and is also embedded in the symmetrical slots 22 on the upper part of the inner core 20. When the eye nut 12 is turned, the upper end face of the stepped shaft 42 can be manually held to play a circumferential anti-rotation role on the inner core 20.

[0086] In one implementation, the inner core 20 can be a hollow cylinder. Specifically, the inner core 20 can be a tubular structure. The lower end of the inner core 20 has three evenly spaced slots 22 along its circumference, each slot 22 capable of holding a hook 30. The hooks 30 can also be connected to the inner core 20 using a pivot shaft 18. The upper end of the inner core 20 has two opposing slots 22. The eye nut 12 of the eye assembly 11 is fitted onto the inner core 20, and the two are connected by threads.

[0087] The lifting adapter 100 also includes a retractable member 13, which acts on the hook 30 and brings the hook 30 closer to the axis of the lifting ring assembly 11. The retractable member 13 retracts the hook 30, facilitating the insertion or removal of the lifting adapter 100 from the flange hole 92.

[0088] The retractable part 13 is an elastic rope loop 14, which is fitted onto the hook 30. The elastic rope loop 14 is easy to install and convenient to use.

[0089] The outer side of the hook 30 is provided with a receiving groove 33, in which the shrink member 13 is engaged. The receiving groove 33 can prevent the shrink member 13 from moving accidentally, improve the stability of the shrink member 13, and also prevent the shrink member 13 from being squeezed by the flange edge 91 and the hook 30, thus preventing the shrink member 13 from breaking accidentally and improving the service life of the shrink member 13. The receiving groove 33 can be a rectangular groove.

[0090] In other embodiments, the retraction member 13 can also be a torsion spring, which can be disposed between the pivot shaft 18 and the hook 30 to realize the movement of the hook 30. The retraction member 13 can also be a spring disposed between the hook 30 and the seat, which pulls the hook 30 to retract.

[0091] In this embodiment, the retractable member 13 is an elastic rope loop 14, which is installed in the receiving groove 33 near the lower end of the three hooks 30. The elastic rope loop 14 applies an inward retractive force to the three hooks 30. When the stepped shaft 42 moves upward and no longer contacts the hooks 30, this retractive force causes the three hooks 30 to move inward, thereby reducing the outer contour of the hooks 30 and allowing them to pass through the flange hole 92 of the supporting cone wall 90.

[0092] The lifting adapter 100 also includes a reset member 16, which acts on the pusher 40 to push the pusher 40 away from the hook 30. The reset member 16 facilitates pushing the pusher 40 away from the hook 30, and facilitates the hook 30 moving away from the flange edge 91 under the action of the retraction member 13, thus facilitating the installation and disassembly of the lifting adapter 100.

[0093] The stepped shaft 42 may also be provided with a reset step 43. The reset member 16 resets the step 43, which can improve the reliability of the push member 40 and prevent accidental damage to the push member 40.

[0094] The reset element 16 can specifically be a spring, which is sleeved on the pusher 40. The two ends of the spring abut against the reset step 43 and the inner core 20 respectively, thereby pushing the pusher 40 upward. In other embodiments, the reset element 16 can also be other elastic elements, deformable elements, etc.

[0095] The lifting eye assembly 11 may specifically include a lifting eye 17 and a lifting eye nut 12. The lifting eye nut 12 is fitted onto the outside of the lifting core. The upper end of the lifting eye nut 12 has a circular boss. The side of the boss has a through hole for mounting the lifting eye 17. The lifting eye 17 can be in the form of a triangular lifting eye structure and is installed in the through hole on the side of the circular boss. The lifting eye 17 cooperates with a three-jaw lifting device.

[0096] The lifting adapter 100 can pass through the flange hole 92 from the front end face 93 of the supporting cone wall 90, and clamp the front end face 93 and the rear end face 94 through the hook 30 and the eye nut 12, thereby fixing the lifting adapter 100 on the supporting cone wall 90. In the free state, the hook 30 of the lifting adapter 100 is driven by the elastic rope loop 14 to be in a retracted state. The hook 30 can pass through the flange hole 92. When the eye nut 12 is tightened, the eye nut 12 drives the stepped shaft 42 to move downwards. The lower end of the stepped shaft 42 penetrates between the three evenly distributed hooks 30, and pushes the hooks 30 outwards, so that the hooks 30 hook onto the rear end face 94 of the supporting cone wall 90. Continue to tighten the eye nut 12, so that the eye nut 12 presses against the front end face 93 of the supporting cone wall 90, thereby fixing the lifting adapter 100 to the flange edge 91 of the supporting cone wall 90. Three lifting adapters 100 are evenly distributed around the flange edge 91 and connected to a general-purpose three-jaw lifting tool to lift the front end of the supporting cone wall 90, facilitating inspection of the inner cavity of the supporting cone wall 90 or other assembly operations. The lifting adapter 100 adopts a clamping structure, and the supporting cone wall 90 is lifted by clamping the front end face 93 and the rear end face 94.

[0097] The hook 30 and the inner core 20 are connected by a pivot shaft 18, which allows the end of the hook 30 to retract or expand. When retracted, it can pass through the flange hole 92 of the supporting cone wall 90, and when expanded, it can hook onto the flange edge 91 of the supporting cone wall 90 from the rear side.

[0098] The lifting adapter 100 uses the stepped shaft 42 to contact and engage with the first working surface 34 of the hook 30 to expand the hook 30, and uses the elastic rope loop 14 to retract the hook 30.

[0099] The stepped shaft 42 passes through the eye nut 12, and the upper end of the stepped shaft 42 can be held to tighten or loosen the eye nut 12, thereby clamping or loosening the lifting adapter 100 and the flange edge 91 of the support cone wall 90.

[0100] The following is a brief description of the steps for using the lifting adapter 100, with reference to the accompanying drawings.

[0101] Loosen the eye nut 12, causing the hook 30 to retract inward under the action of the elastic rope loop 14. Pass the hook 30 through the flange hole 92 of the supporting cone wall 90. Press the stepped shaft 42 until it contacts the first working surface 34 of the hook 30, and continue pressing the stepped shaft 42 to open the hook 30, which then locks into the rear end face 94 of the supporting cone wall 90. Manually hold the stepped shaft 42, and then tighten the eye nut 12, pressing it against the front end face 93 of the supporting cone wall 90. At this point, the lifting adapter 100 is fixedly connected to the flange edge 91 of the supporting cone wall 90.

[0102] Following the steps described above, install the remaining two lifting adapters 100 in a uniformly distributed manner. For example... Figure 2 As shown in the figure, the supporting cone wall 90 is equipped with three lifting adapters 100. The front end of the supporting cone wall 90 is lifted by hooking the lifting ring 17 with a three-jaw lifting tool, and then relevant assembly operations can be performed.

[0103] To remove the lifting adapter 100, loosen the lifting ring 17 and unscrew the lifting ring nut 12, and the lifting adapter 100 can be removed from the flange hole 92 of the supporting cone wall 90.

[0104] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A lifting device for supporting the lifting of a conical wall; characterized in that, The lifting device adapter includes: A lifting eye assembly for connecting a lifting hook, and the lifting eye assembly includes a lifting eye nut for pressing against the front end face of the supporting cone wall; A hook is pivotally mounted inside the lifting ring assembly and is used to engage the flange edge of the supporting cone wall; the side of the hook away from the flange edge has a first working surface; A pusher is pushed against the first working surface, and the pusher is used to swing the hook to lock the flange edge of the support cone wall; The pusher is inserted into the eyelet assembly, and the pusher moves along the axis of the eyelet assembly to push the hook; the upper end of the pusher is exposed on the outside of the eyelet nut. The lifting adapter also includes an inner core, the lifting ring assembly is sleeved on the inner core, and the lifting ring nut is screwed to the inner core; the hook is pivotally mounted on the lower end of the inner core; the upper end of the inner core has a slot on its side wall, and the slot extends along the axial direction of the lifting ring assembly; The lifting adapter also includes an anti-rotation shaft, one end of which is inserted into the pusher and the other end of which is inserted into the slot. The pusher also has a reset step located inside the eye nut and abutting against the eye nut to drive the pusher downward when the eye nut is tightened; the lifting adapter also includes a reset member acting on the reset step and the inner core to apply an upward force relative to the inner core to the pusher.

2. The lifting adapter as described in claim 1, characterized in that, The outer side of the pusher is provided with a second working surface, which is correspondingly arranged with the first working surface.

3. The lifting adapter as described in claim 2, characterized in that, The first working surface protrudes in a direction away from the flange edge; And / or, the second working surface protrudes toward the flange edge; And / or, the second working surface is a cylindrical surface or a plane.

4. The lifting adapter as described in claim 1, characterized in that, The outer wall at the lower end of the inner core has several notches, and the hook is pivotally disposed in the notches.

5. The lifting adapter as described in claim 1, characterized in that, The lifting adapter also includes a retractable component that acts on the hook and is used to bring the hook closer to the axis of the lifting ring assembly.

6. The lifting adapter as described in claim 5, characterized in that, The retractable component is an elastic rope loop, which is sleeved on the hook; Alternatively, the outer side of the hook is provided with a receiving groove, and the retractable member is engaged in the receiving groove.

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