Universal hoisting device for casting shell in vertical state

Abstract

The utility model discloses a universal hoisting device for a casting shell in a vertical state. The universal hoisting device comprises a base fixing mechanism, a top limiting and locking mechanism, a bottom limiting and locking mechanism, an angular positioning mechanism and a hoisting mechanism, the base fixing mechanism is used for fixing a casting shell; the top limiting and locking mechanism is installed on the upper portion area of the base fixing mechanism and used for positioning, fastening and limiting the upper portion of the casting shell. The bottom limiting and locking mechanism is installed in the lower area of the base fixing mechanism and used for positioning, fastening and limiting the lower portion of the casting shell. The angular positioning mechanism is installed in the lower area of the base fixing mechanism and used for conducting angular positioning on the casting shell. The hoisting mechanism is installed on the top face of the base fixing mechanism and used for being matched with hoisting equipment to hoist the base fixing mechanism. The utility model overcomes the defects of low efficiency and high safety risk of the traditional steel wire rope hoisting and locking mode, has a simple integral structure, is easy to operate, can save the hoisting and assembling time, and eliminates the safety risk.

Description

Technical Field

[0001] The utility model relates to a universal lifting device for a vertical state of a casting shell, belonging to the technical field of lifting devices. Background Art

[0002] Nowadays, the engineering machinery industry and the automobile industry are developing rapidly. Each user industry has begun to put forward its own unique needs. The demand for the host has begun to become diverse. The deformation requires the gearbox to add more functions, which has simultaneously led to the complexity and diversification of the internal transmission structure of the gearbox. Because of the corresponding changes in the host, the overall appearance of the gearbox has also been improved in different ways according to the needs. The shapes of the casting shells are different, and the difficulty of casting and processing has increased. It is difficult to hoist these casting shells during processing. In the process of disassembling and assembling the workpiece, wire ropes or lifting slings are generally used for hoisting. Manpower is required to repeatedly adjust the lifting position. After ensuring that the device is adjusted to a basically horizontal or basically vertical state, the shell is adjusted to the specified position of the tooling. After assembly, the wire rope or sling needs to be removed from the side. During the removal process, the workpiece may be pulled, causing the workpiece to shift and need to be re-hoisted. In the past, these common lifting methods were cumbersome to operate and extremely inefficient. Heavier workpieces were lifted with wire ropes, which easily caused damage to the shell processing surface. In addition, the shell's irregular shape and structure made it difficult to find a suitable lifting and fixing position. After lifting, it was difficult to ensure that the shell was suspended horizontally or vertically, making it impossible to ensure that it could reach the designated position of the tooling for clamping and processing in one lifting. Summary of the Invention

[0003] The utility model provides a universal lifting device for a vertical state of a casting shell, which solves the shortcomings of traditional irregular casting shells such as being unable to lift vertically, complicated operation, requiring multiple adjustments before lifting, and being inconvenient to install and disassemble after lifting into place.

[0004] The utility model is implemented according to the following technical solutions:

[0005] A universal lifting device for a vertical casting shell, comprising:

[0006] A base fixing mechanism for fixing the casting shell;

[0007] A top limiting locking mechanism, mounted on the upper region of the base fixing mechanism, for positioning and tightening the upper portion of the casting shell;

[0008] A bottom limiting locking mechanism, installed in the lower area of ​​the base fixing mechanism, is used to position and tighten the lower part of the casting shell;

[0009] an angular positioning mechanism, mounted in the lower region of the base fixing mechanism, for angularly positioning the casting shell;

[0010] The lifting mechanism is installed on the top surface of the base fixing mechanism and is used to cooperate with the lifting equipment to lift the base fixing mechanism.

[0011] In some embodiments, the base fixing mechanism includes:

[0012] A fixed vertical plate, used for assembling the top limit locking mechanism, the bottom limit locking mechanism and the angular positioning mechanism;

[0013] An auxiliary fixing mechanism, installed on the top surface of the fixed vertical plate, used for installing the lifting mechanism and assisting in positioning and fixing the top limit locking mechanism;

[0014] The limiting side plate is installed at the end of the horizontal extension part of the fixed vertical plate and can fit with the outer ring surface of the casting shell to position and limit the side surface of the casting shell.

[0015] In some embodiments, the auxiliary fixing mechanism is an L-shaped plate, which includes:

[0016] A hoisting top plate, assembled together with the fixed vertical plate, for connecting the fixed base and the hoisting mechanism;

[0017] The positioning side plate is arranged opposite to the fixed vertical plate, and each of the positioning side plates and the fixed vertical plate is provided with a coaxially arranged mounting hole for assembling the top limiting locking mechanism.

[0018] In some embodiments, the top limit locking mechanism includes:

[0019] An extended positioning pin shaft is rotatably supported in the fixed vertical plate and the positioning side plate, and both ends of the pin shaft extend from the fixed vertical plate and the positioning side plate by a preset length;

[0020] The first positioning pressure plate is mounted on the axial end face of the extended positioning pin located on the side of the positioning side plate and can rotate synchronously with the extended positioning pin to achieve locking or unlocking operations on the casting shell;

[0021] The first tightening handle is mounted on the axial end face of the extended positioning pin shaft on the side where the vertical plate is fixed;

[0022] The first rotation limiting component is installed on the fixed vertical plate to limit the rotation angle of the extended positioning pin shaft.

[0023] In some embodiments, an annular groove is provided on the outer circumferential surface of the extended positioning pin shaft located in the mounting hole of the fixed vertical plate, and a threaded hole connected to the mounting hole is provided on the side of the fixed vertical plate. A threaded pin is screwed into the threaded hole until the threaded pin extends into the annular groove. The axial movement of the extended positioning pin shaft in the fixed vertical plate and the positioning side plate is limited by the cooperation between the threaded pin and the annular groove, but its circumferential rotation is not limited.

[0024] In some embodiments, the first rotation limiting component includes:

[0025] Two angular positioning seats are installed on the inner side of the fixed vertical plate and are located on both sides of the extended positioning pin shaft;

[0026] The angular positioning thread pin is installed on the outer circumferential surface of the extended positioning pin shaft close to the inner side surface of the fixed vertical plate. The two angular positioning seats resist the angular positioning thread pin to limit the rotation angle of the extended positioning pin shaft.

[0027] In some embodiments, the bottom limiting locking mechanism includes:

[0028] A rigid bushing is fixed on the inner side surface of the fixed vertical plate in a coaxial manner with the mounting hole at the lower left portion of the fixed vertical plate;

[0029] An extended positioning core shaft is rotatably supported in the mounting hole and the rigid sleeve at the lower portion of the fixed vertical plate, with one end thereof extending from the fixed vertical plate by a preset length and the other end face being flush with the end face of the rigid sleeve;

[0030] The second positioning pressure plate is mounted on the axial surface of the extended positioning core shaft flush with the end surface of the rigid sleeve and can rotate synchronously with the extended positioning core shaft to achieve locking or unlocking operations on the casting shell;

[0031] The second tightening handle is mounted on the axial end face of the extended positioning core shaft on the side of the fixed vertical plate;

[0032] The second rotation limiting component is installed on the fixed vertical plate to limit the rotation angle of the extended positioning core shaft.

[0033] In some embodiments, the second rotation limiting component includes:

[0034] The special-shaped angular limit plate is sleeved on the portion of the extended positioning core shaft extending from the fixed vertical plate through the central hole provided therein and is fixed to the fixed vertical plate; the central hole is provided with a stepped hole at the periphery of the portion facing the fixed vertical plate;

[0035] The angular positioning threaded pin is installed on the outer circumference of the extended positioning core shaft located in the step hole. The arc-shaped step hole cooperates with the angular positioning threaded pin to limit the rotation angle and axial movement of the extended positioning core shaft.

[0036] In some embodiments, the outer structure of the rigid sleeve is a stepped shaft with a step, the axial surface of the wide portion of the rigid sleeve fits against the fixed vertical plate, and a flexible sleeve tightly fitting therewith is mounted on the radial outer peripheral surface of the narrow portion.

[0037] In some embodiments, the angular positioning mechanism comprises:

[0038] The angular positioning core shaft is a stepped shaft consisting of an externally threaded cylinder and a T-shaped cylinder. The externally threaded cylinder is inserted into the mounting hole at the lower right portion of the fixed vertical plate and is fixed by a nut connection. A semi-spherical component is provided on the axial surface of the T-shaped cylinder.

[0039] A soft bushing is sleeved on the T-shaped cylinder in a tight-fitting manner.

[0040] In some embodiments, the lifting mechanism comprises:

[0041] A fixing seat, mounted on the top surface of the base fixing mechanism;

[0042] The bow-shaped lifting ring is hinged to the fixing seat through a locking threaded pin.

[0043] In some embodiments, further comprising:

[0044] The auxiliary power-assisting mechanism is a U-shaped structure as a whole, which is fixed on the outer side of the base fixing mechanism and assists in disassembly and assembly during the use of the lifting device.

[0045] Beneficial effects of the utility model:

[0046] The utility model solves the shortcomings of traditional casting shell vertical state lifting operation, long posture adjustment time and difficult assembly and disassembly, thereby shortening the shell lifting adjustment time and reducing the lifting device clamping and disassembly time. The device is simple to operate, and each casting shell is equipped with a customized vertical state lifting device, which can meet the lifting requirements with one clamping, thereby reducing the operator's labor intensity and shortening the auxiliary time for disassembly before and after processing, thereby achieving the purpose of improving production efficiency.

[0047] The utility model adopts an ingenious mechanical structure with simple structure, low matching requirements and easy processing, thereby reducing processing costs. It is positioned through the through hole of the casting shell before lifting. During lifting, it can be automatically adjusted to the highest point by leveraging force without repeated lifting. During the workpiece clamping process, after the casting shell is assembled in place, the tightening and loosening functions can be achieved by rotating the handle. The operation is simple, easy to disassemble and assemble, and will not affect the positioning of the shell, thereby ensuring the positioning accuracy of the shell. At the same time, it reduces the wear on the tooling positioning structure caused by repeated clamping, thereby increasing the service life of the sling. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings are part of this utility model and are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be derived from these drawings without inventive effort.

[0049] In the attached figure:

[0050] Figure 1 This is a three-dimensional diagram of the base fixing mechanism of the present utility model;

[0051] Figure 2 This is a front view of the base fixing mechanism of the present utility model;

[0052] Figure 3 This is a three-dimensional diagram of the top limit locking mechanism of the utility model;

[0053] Figure 4 It is a cross-sectional view of the top limiting locking mechanism of the utility model;

[0054] Figure 5 This is a three-dimensional diagram of the bottom limit locking mechanism of the utility model;

[0055] Figure 6 It is a cross-sectional view of the bottom limiting locking mechanism of the present utility model;

[0056] Figure 7 It is a three-dimensional diagram of the angular positioning mechanism of the utility model;

[0057] Figure 8 It is a three-dimensional diagram of the lifting mechanism of the utility model;

[0058] Figure 9 A three-dimensional diagram of the auxiliary fixing mechanism of the present utility model;

[0059] Figure 10 This is a three-dimensional diagram of the auxiliary power-assisting mechanism of the present utility model;

[0060] Figure 11 This is a three-dimensional universal lifting device for a vertical state of a casting shell of the utility model. Figure 1 ;

[0061] Figure 12 This is a three-dimensional universal lifting device for a vertical state of a casting shell of the utility model. Figure 2 ;

[0062] Figure 13 This is a front view of a universal lifting device for a vertical state of a casting shell according to the utility model;

[0063] Figure 14 This is a top view of a universal lifting device for a vertical state of a casting shell according to the present invention;

[0064] Figure 15 This is a three-dimensional diagram of an embodiment of a universal lifting device for a casting shell in a vertical state according to the utility model;

[0065] Figure 16 This is a front view of an embodiment of a universal lifting device for a casting shell in a vertical state according to the utility model;

[0066] Figure 17 This is a left view of an embodiment of a universal lifting device for a vertical state of a casting shell according to the utility model;

[0067] Figure 18 It is a top view of an embodiment of a universal lifting device for a casting shell in a vertical state according to the utility model.

[0068] Figure identification: 1 bow-shaped lifting ring, 2 fixed seat, 3 locking threaded pin, 4 lifting top plate, 5 positioning side plate, 6 extended positioning pin shaft, 7 anti-loosening gasket, 8 bolt, 9 first positioning pressure plate, 10 limiting side plate, 11 second positioning pressure plate, 12 extended positioning core shaft, 13 bolt, 14 rigid sleeve, 15 nylon sleeve, 16 angular positioning core shaft, 17 nylon sleeve, 18 fixed vertical plate, 19 angular positioning seat, 20 bolt, 21 angular positioning threaded pin, 22 bolt, 23 first tightening handle, 24 auxiliary power mechanism, 25 nut, 26 bolt, 27 second tightening handle, 28 bolt, 29 special-shaped angular limiting plate, 30 angular positioning threaded pin, 31 bolt, 32 bolt, 33 threaded pin.

[0069] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0071] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0072] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0073] like Figures 11-18 As shown, a universal lifting device for a vertical casting shell includes a base fixing mechanism, a top limit locking mechanism, a bottom limit locking mechanism, an angular positioning mechanism, and a lifting mechanism; the base fixing mechanism is used to fix the casting shell; the top limit locking mechanism is installed in the upper area of ​​the base fixing mechanism, and is used to position and tighten the upper part of the casting shell; the bottom limit locking mechanism is installed in the lower area of ​​the base fixing mechanism, and is used to position and tighten the lower part of the casting shell; the angular positioning mechanism is installed in the lower area of ​​the base fixing mechanism, and is used to angularly position the casting shell; the lifting mechanism is installed on the top surface of the base fixing mechanism, and is used to cooperate with the lifting equipment to lift the base fixing mechanism. The utility model solves the shortcomings of the traditional wire rope lifting and locking method with low efficiency and high safety risks. The utility model has a simple overall structure, is easy to operate, has low processing costs, can save lifting and assembly time, and eliminates safety risks.

[0074] Further solutions, such as Figure 10 、 Figure 12 、 Figure 13 As shown, it also includes an auxiliary power mechanism 24, which is a U-shaped structure as a whole. It is fixed to the outer surface of the base fixing mechanism by bolts 26 to assist in disassembly and assembly during the use of the lifting device.

[0075] The structure of the base fixing mechanism is further described below.

[0076] like Figure 1 、 Figure 2 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 As shown, the base fixing mechanism includes a fixed vertical plate 18, an auxiliary fixing mechanism and a limiting side plate 10; the fixed vertical plate 18 is used to assemble the top limiting locking mechanism, the bottom limiting locking mechanism and the angular positioning mechanism; the auxiliary fixing mechanism is installed on the top surface of the fixed vertical plate 18, and is used to install the lifting mechanism and assist in positioning and fixing the top limiting locking mechanism; the limiting side plate 10 is fixed to the end of the horizontal extension part of the fixed vertical plate 18 by bolts 32, and can fit with the outer ring surface of the casting shell to position and limit the side of the casting shell.

[0077] It should be noted that the surface of the fixed vertical plate 18 is punched with through holes and threaded holes for fixing the angular positioning seat 19, the limiting side plate 10, the auxiliary power mechanism 24 and the auxiliary fixing mechanism; the top and tail ends of the fixed vertical plate 18 are punched with pin holes for positioning the top limiting locking mechanism, the bottom limiting locking mechanism and the angular positioning mechanism; the shape of the outer ring of the fixed vertical plate 18 is not fixed, and is adjusted according to the weight of the casting shell and the weight of the fixed vertical plate to ensure that the workpiece is in a horizontal state after lifting; the position of these holes can be adjusted according to the actual clamping position for subsequent workpiece fixation and replacement in case of damage. The shape of the limiting side plate 10 is adjusted according to the shape of the irregular casting shell, and is fitted as closely as possible to the shape of the outer ring of the shell, to position and limit the side of the casting shell to prevent the workpiece from falling and tilting during the lifting process, such as Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 shown.

[0078] In a preferred solution, a protective nylon plate is installed on the surface of the limiting side plate 10 to protect the machined surface of the casting shell.

[0079] The structure of the auxiliary fixing mechanism is further described below.

[0080] like Figure 1 、 Figure 9 、 Figure 11 、 Figure 12 As shown, the auxiliary fixing mechanism is an L-shaped plate, including a lifting top plate 4 and a positioning side plate 5; the lifting top plate 4 is assembled with the fixed vertical plate 18 by bolts 22, and is used to connect the fixed vertical plate 18 and the lifting mechanism. The length of the lifting top plate 4 and the installation position of the lifting mechanism need to be determined according to the center of gravity position of the parts; the positioning side plate 5 is arranged opposite to the fixed vertical plate 18, and is provided with a coaxially arranged mounting hole on the fixed vertical plate 18, which is used to assemble the top limit locking mechanism to avoid deformation of the top limit locking mechanism.

[0081] The structure of the top limit locking mechanism is further described below.

[0082] like Figure 3 、 Figure 4 、 Figures 11-18 As shown, the top limit locking mechanism includes an extended positioning pin 6, a first positioning pressure plate 9, a first tightening handle 23 and a first rotation limit component; the extended positioning pin 6 is rotatably supported in the fixed vertical plate 18 and the positioning side plate 5, and both ends thereof extend out of the fixed vertical plate 18 and the positioning side plate 5 by a preset length, and both end faces of the extended positioning pin 6 are provided with threaded holes; the first positioning pressure plate 9 is installed on the axial end face of the extended positioning pin 6 on the side of the positioning side plate 5, and can rotate synchronously with the extended positioning pin 6 to realize locking or unlocking operation of the casting shell; the first tightening handle 23 is installed on the axial end face of the extended positioning pin 6 on the side of the fixed vertical plate 18; the first rotation limit component is installed on the fixed vertical plate 18 to limit the rotation angle of the extended positioning pin 6.

[0083] As a further solution, an anti-loosening gasket 7 is placed in the middle of the connection between the first positioning pressure plate 9 and the extended positioning pin shaft 6 to prevent loosening and lock; the first positioning pressure plate 9 is fixed to the extended positioning pin shaft 6 by bolts 8.

[0084] Further solutions, such as Figure 2 As shown, there is a rotation direction indication and block and avoid words below the position of the first tightening handle 23 to prompt the rotation direction and operation effect.

[0085] The axial limiting structure of the above-mentioned top limiting locking mechanism is further described below.

[0086] like Figure 3 、 Figure 4 As shown, an annular groove is provided on the outer circumferential surface of the extended positioning pin shaft 6 located in the mounting hole of the fixed vertical plate 18, and a threaded hole connected to the mounting hole is provided on the side of the fixed vertical plate 18. A threaded pin 33 is screwed into the threaded hole until the threaded pin 33 extends into the annular groove. The axial movement of the extended positioning pin shaft 6 in the fixed vertical plate 18 and the positioning side plate 5 is limited by the cooperation between the threaded pin 33 and the annular groove, but its circumferential rotation is not limited.

[0087] The structure of the first rotation limiting component is further described below.

[0088] like Figure 1 、 Figure 11As shown, the first rotation limiting component includes two angular positioning seats 19 and an angular positioning threaded pin 21; the two angular positioning seats 19 are respectively fixed to the inner side surface of the fixed vertical plate 18 by bolts 20, and are located on both sides of the extended positioning pin shaft 6; the angular positioning threaded pin 21 is installed on the outer circumferential surface of the extended positioning pin shaft 6 close to the inner side surface of the fixed vertical plate 18, and the two angular positioning seats 19 resist the angular positioning threaded pin 21 to achieve the purpose of limiting the rotation angle of the extended positioning pin shaft 6.

[0089] The structure of the bottom limiting locking mechanism is further described below.

[0090] like Figure 5 、 Figure 6 、 Figures 11-18 As shown, the bottom limit locking mechanism includes a rigid sleeve 14, an extended positioning core shaft 12, a second positioning pressure plate 11, a second tightening handle 27 and a second rotation limit component; the rigid sleeve 14 is fixed to the inner side surface of the fixed vertical plate 18 in a coaxial manner with the mounting hole at the lower left part of the fixed vertical plate 18 by a bolt 31; the extended positioning core shaft 12 is rotatably supported in the mounting hole at the lower part of the fixed vertical plate 18 and the rigid sleeve 14, and one end thereof extends from the fixed vertical plate 18 by a preset length, and the other end face is flush with the end face of the rigid sleeve 14. Both end faces of the extended positioning core shaft 12 are provided with threaded holes; the second positioning pressure plate 11 is fixed to the axial face of the extended positioning core shaft 12 flush with the end face of the rigid sleeve 14 by means of bolts 13, and can rotate synchronously with the extended positioning core shaft 12 to lock or unlock the casting shell; the second tightening handle 27 is installed on the axial end face of the extended positioning core shaft 12 on the side of the fixed vertical plate 18; the second rotation limiting component is installed on the fixed vertical plate 18 to limit the rotation angle of the extended positioning core shaft 12.

[0091] Further solutions, such as Figure 2 As shown, there is a rotation direction indication and block and avoid words below the position of the second tightening handle 27 to prompt the rotation direction and operation effect.

[0092] The structure of the second rotation limiting component is further described below.

[0093] like Figure 5 、 Figure 6As shown, the second rotation limiting component includes a special-shaped angular limiting plate 29 and an angular positioning threaded pin 30; the special-shaped angular limiting plate 29 is mounted on the portion of the extended positioning core shaft 12 extending from the fixed vertical plate 18 through its center hole, and is fixed to the fixed vertical plate 18 by bolts 28; the center hole is set as a step hole on the periphery of the part facing the fixed vertical plate 18; the angular positioning threaded pin 30 is installed on the outer circumferential surface of the extended positioning core shaft 12 located in the step hole, and the arc-shaped step hole cooperates with the angular positioning threaded pin 30 to limit the rotation angle and axial movement of the extended positioning core shaft 12.

[0094] Further solutions, such as Figure 5 、 Figure 6 As shown, the external structure of the rigid bushing 14 is a stepped shaft with a step, the axial surface of the wide part of which is fitted on the fixed vertical plate 18, and a nylon bushing 15 that fits tightly with it is mounted on the radial outer peripheral surface of the narrow part to avoid collision with the casting shell during assembly and disassembly of the device. The nylon bushing 15 can be directly replaced after wear.

[0095] The structure of the above-mentioned angular positioning mechanism is further described below.

[0096] like Figure 7 、 Figures 11-18 As shown, the angular positioning mechanism includes an angular positioning core shaft 16 and a nylon sleeve 17; the angular positioning core shaft 16 is a stepped shaft, composed of an externally threaded cylinder and a T-shaped cylinder, the externally threaded cylinder is inserted into the mounting hole at the lower right part of the fixed vertical plate 18, and is fixed by a nut 25; a semi-spherical component is provided on the axial surface of the T-shaped cylinder to avoid collision with the casting shell during assembly and disassembly of the device; the nylon sleeve 17 is mounted on the T-shaped cylinder in a tight fit to avoid collision with the casting shell during assembly and disassembly of the device, and the nylon sleeve 17 can be directly replaced after wear.

[0097] The structure of the above-mentioned lifting mechanism is further described below.

[0098] like Figure 8 、 Figure 11 、 Figure 12 As shown, the lifting mechanism includes a fixing seat 2 and a bow-shaped lifting ring 1; the fixing seat 2 is installed on the lifting top plate 4; the bow-shaped lifting ring 1 is hinged to the fixing seat 2 through a locking threaded pin 3.

[0099] In summary, the utility model solves the shortcomings of traditional casting shell vertical lifting, such as complex operation, long posture adjustment time, and difficult assembly and disassembly of traditional lifting, thereby shortening the shell lifting adjustment time and reducing the clamping and disassembly time of the lifting device. This device is simple to operate, and each casting shell is equipped with a customized vertical lifting device, which can meet the lifting requirements with one clamping, thereby reducing the labor intensity of the operator and shortening the auxiliary time for disassembly before and after processing, thereby achieving the purpose of improving production efficiency.

[0100] The utility model adopts an ingenious mechanical structure with simple structure, low matching requirements and easy processing, thereby reducing processing costs. It is positioned through the through hole of the casting shell before lifting. During lifting, it can be automatically adjusted to the highest point by leveraging force without repeated lifting. During the workpiece clamping process, after the casting shell is assembled in place, the tightening and loosening functions can be achieved by rotating the handle. The operation is simple, easy to disassemble and assemble, and will not affect the positioning of the shell, thereby ensuring the positioning accuracy of the shell. At the same time, it reduces the wear on the tooling positioning structure caused by repeated clamping, thereby increasing the service life of the sling.

[0101] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0102] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are also intended to fall within the scope of protection of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art will be able to use them in combination based on the known technical solutions and the technical problems to be solved by this application.

[0103] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A universal lifting device for vertical casting shells, characterized in that: include: A base fixing mechanism for fixing the casting shell; A top limiting locking mechanism, mounted on the upper region of the base fixing mechanism, for positioning and tightening the upper portion of the casting shell; A bottom limiting locking mechanism, installed in the lower area of ​​the base fixing mechanism, is used to position and tighten the lower part of the casting shell; an angular positioning mechanism, mounted in the lower region of the base fixing mechanism, for angularly positioning the casting shell; The lifting mechanism is installed on the top surface of the base fixing mechanism and is used to cooperate with the lifting equipment to lift the base fixing mechanism.

2. A universal lifting device for a vertical casting shell according to claim 1, characterized in that: The base fixing mechanism includes: A fixed vertical plate, used for assembling the top limit locking mechanism, the bottom limit locking mechanism and the angular positioning mechanism; An auxiliary fixing mechanism, installed on the top surface of the fixed vertical plate, used for installing the lifting mechanism and assisting in positioning and fixing the top limit locking mechanism; The limiting side plate is installed at the end of the horizontal extension part of the fixed vertical plate and can fit with the outer ring surface of the casting shell to position and limit the side surface of the casting shell.

3. A universal lifting device for a vertical casting shell according to claim 2, characterized in that: The auxiliary fixing mechanism is an L-shaped plate, which includes: A hoisting top plate, assembled together with the fixed vertical plate, for connecting the fixed base and the hoisting mechanism; The positioning side plate is arranged opposite to the fixed vertical plate, and each of the positioning side plates and the fixed vertical plate is provided with a coaxially arranged mounting hole for assembling the top limiting locking mechanism.

4. A universal lifting device for vertical casting shells according to claim 3, characterized in that: The top limit locking mechanism includes: An extended positioning pin shaft is rotatably supported in the fixed vertical plate and the positioning side plate, and both ends of the pin shaft extend from the fixed vertical plate and the positioning side plate by a preset length; The first positioning pressure plate is mounted on the axial end face of the extended positioning pin located on the side of the positioning side plate and can rotate synchronously with the extended positioning pin to achieve locking or unlocking operations on the casting shell; The first tightening handle is mounted on the axial end face of the extended positioning pin shaft on the side where the vertical plate is fixed; The first rotation limiting component is installed on the fixed vertical plate to limit the rotation angle of the extended positioning pin shaft.

5. A universal lifting device for a vertical casting shell according to claim 4, characterized in that: An annular groove is provided on the outer circumferential surface of the extended positioning pin shaft located in the mounting hole of the fixed vertical plate, and a threaded hole connected to the mounting hole is provided on the side of the fixed vertical plate. A threaded pin is screwed into the threaded hole until the threaded pin extends into the annular groove. The axial movement of the extended positioning pin shaft in the fixed vertical plate and the positioning side plate is limited by the cooperation between the threaded pin and the annular groove, but its circumferential rotation is not limited.

6. A universal lifting device for vertical casting shells according to claim 4, characterized in that: The first rotation limiting component includes: Two angular positioning seats are installed on the inner side of the fixed vertical plate and are located on both sides of the extended positioning pin shaft; The angular positioning thread pin is installed on the outer circumferential surface of the extended positioning pin shaft close to the inner side surface of the fixed vertical plate. The two angular positioning seats resist the angular positioning thread pin to limit the rotation angle of the extended positioning pin shaft.

7. A universal lifting device for vertical casting shells according to claim 2, characterized in that: The bottom limiting locking mechanism includes: A rigid bushing is fixed on the inner side surface of the fixed vertical plate in a coaxial manner with the mounting hole at the lower left portion of the fixed vertical plate; An extended positioning core shaft is rotatably supported in the mounting hole and the rigid sleeve at the lower portion of the fixed vertical plate, with one end thereof extending from the fixed vertical plate by a preset length and the other end face being flush with the end face of the rigid sleeve; The second positioning pressure plate is mounted on the axial surface of the extended positioning core shaft flush with the end surface of the rigid sleeve and can rotate synchronously with the extended positioning core shaft to achieve locking or unlocking operations on the casting shell; The second tightening handle is mounted on the axial end face of the extended positioning core shaft on the side of the fixed vertical plate; The second rotation limiting component is installed on the fixed vertical plate to limit the rotation angle of the extended positioning core shaft.

8. A universal lifting device for vertical casting shells according to claim 7, characterized in that: The second rotation limiting component includes: The special-shaped angular limit plate is sleeved on the portion of the extended positioning core shaft extending from the fixed vertical plate through the central hole provided therein and is fixed to the fixed vertical plate; the central hole is provided with a stepped hole at the periphery of the portion facing the fixed vertical plate; The angular positioning threaded pin is installed on the outer circumference of the extended positioning core shaft located in the step hole. The arc-shaped step hole cooperates with the angular positioning threaded pin to limit the rotation angle and axial movement of the extended positioning core shaft.

9. The universal vertical lifting device for a casting shell according to claim 7, characterized in that: The outer structure of the rigid sleeve is a stepped shaft with a step, the axial surface of the wide part of the rigid sleeve is fitted on the fixed vertical plate, and a flexible sleeve tightly fitting therewith is sleeved on the radial outer peripheral surface of the narrow part.

10. A universal lifting device for vertical casting shells according to claim 2, characterized in that: The angular positioning mechanism comprises: The angular positioning core shaft is a stepped shaft consisting of an externally threaded cylinder and a T-shaped cylinder. The externally threaded cylinder is inserted into the mounting hole at the lower right portion of the fixed vertical plate and is fixed by a nut connection. A semi-spherical component is provided on the axial surface of the T-shaped cylinder. A soft bushing is sleeved on the T-shaped cylinder in a tight-fitting manner.

11. A universal lifting device for a vertical casting shell according to claim 1, characterized in that: The lifting mechanism comprises: A fixing seat, mounted on the top surface of the base fixing mechanism; The bow-shaped lifting ring is hinged to the fixing seat through a locking threaded pin.

12. A universal lifting device for a vertical casting shell according to claim 1, characterized in that: Also includes: The auxiliary power-assisting mechanism is a U-shaped structure as a whole, which is fixed on the outer side of the base fixing mechanism and assists in disassembly and assembly during the use of the lifting device.

Images