Lifting appliance for lifting heavy cylinder part

Abstract

The utility model relates to the technical field of heavy workpiece lifting matching devices, in particular to a lifting appliance for lifting a heavy cylindrical part, which comprises a connecting block, a connecting seat, a lifting arm, a clamping seat, a connecting bulge, a positioning block, a connecting column, a movable seat, a convex block, a supporting arm, a positioning hole and a pin shaft, the connecting seats are fixedly connected to the side faces of the connecting block respectively, one ends of the hoisting arms are movably connected with the connecting seats respectively, one ends of the clamping seats are fixedly connected with connecting protrusions respectively, the clamping seats are connected with the lower end of the workpiece body in a matched mode, and the connecting protrusions are connected with the other ends of the hoisting arms respectively in a matched mode. The positioning blocks are separately arranged on the lower surface of the hoisting arm at equal intervals, the connecting columns are fixedly connected to the middle positions of the lower ends of the connecting blocks, and the hoisting device has the effects that the adjustable range is large, operation is easy and convenient, the hoisting device is more suitable for hoisting cylindrical workpieces, and the machining efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of supporting devices for hoisting heavy workpieces, and in particular to a sling for hoisting heavy cylindrical workpieces. Background Art

[0002] Heavy workpieces are widely used in fields such as mining, power generation, and chemical industry. Especially for some large-diameter gears, bushings and other structures, they can provide strong support for the operation of equipment. During the production of these large ring-shaped workpieces, through processes such as casting and forging, and then rough machining and finish machining. Since the inner diameter of such workpieces is relatively large, structures such as steel cables and clamps need to be used in cooperation during the hoisting process. However, the existing slings of this type are all general-purpose slings and cannot handle cylindrical and ring-shaped workpieces well, especially workpieces with different diameters. Since the adjustable range of the existing heavy slings is relatively small, the applicable range is small. Therefore, it is necessary to improve the existing heavy slings to solve these existing problems. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present application is to provide a sling for hoisting heavy cylindrical workpieces that has a large adjustable range, is easy to operate, and is more suitable for hoisting cylindrical workpieces.

[0004] The above application purpose of the present application is achieved through the following technical solutions:

[0005] A sling for hoisting heavy cylindrical workpieces includes: a connection block, a connection seat, a hoisting arm, a clamping seat, a connection protrusion, a positioning block, a connection column, a movable seat, a convex block, a support arm, a positioning hole, and a pin shaft. The edge of the connection block is a regular polygon. The connection seats are respectively fixedly connected to each side surface of the connection block. One end of each hoisting arm is respectively movably connected to the connection seat. One end of each clamping seat is respectively fixedly connected with a connection protrusion. The clamping seat is cooperatively connected with the lower end of the workpiece body. The connection protrusions are respectively cooperatively connected with the other end of each hoisting arm. The positioning blocks are respectively equidistantly arranged on the lower surface of the hoisting arm. The connection column is fixedly connected to the middle position of the lower end of the connection block. The movable seat is slidably sleeved on the surface of the connection column. The convex blocks are respectively fixedly connected to the outer surface of the movable seat. One end of each support arm is respectively movably connected to the convex block. The positioning holes are respectively equidistantly and throughly opened on the support arm. The pin shaft passes through the positioning hole and is cooperatively connected with the positioning block.

[0006] Optionally, it further includes a hoisting block, and the hoisting block is fixedly connected to the upper surface of the middle position of the connection block.

[0007] Optionally, it further includes an adjusting nut. A threaded groove is provided on the surface of the connection column. The adjusting nut is threadedly connected to the surface of the connection column corresponding to the lower end of the movable seat.

[0008] Optionally, it further includes a sliding groove and a mating protrusion. The sliding grooves are equidistantly arranged in an annular array on the surface of the connecting column, and the mating protrusions are respectively equidistantly arranged on the inner wall of the movable seat. The mating protrusions are respectively slidably connected in the sliding grooves.

[0009] Optionally, it further includes a stop block, and the stop block is fixedly connected to the lower end of the connecting column.

[0010] Optionally, it further includes a gasket, and the gaskets are respectively fixedly connected to the inner surface of the clamping seat.

[0011] Optionally, it further includes connecting ears, and the connecting ears are symmetrically and fixedly connected to the two side surfaces of the clamping seat.

[0012] The hoist for lifting heavy cylindrical parts can achieve quick connection to the workpiece body through a combined structure, and by changing the mating position between the support arm and the lifting arm, connection to workpieces with different diameters can be achieved. Compared with existing heavy hoists, it has better practicability.

[0013] The hoist for lifting heavy cylindrical parts is provided with a support arm that cooperates with the lifting arm to enhance the strength during the lifting process, and can cope with stable lifting under heavier working conditions. The provided connecting column can support the end of the support arm to ensure stable support at the middle force-bearing position when it rises during lifting.

[0014] The hoist for lifting heavy cylindrical parts requires relatively simple manufacturing processes, has a fast production speed, a wide range of adaptability, has good application prospects, and helps to improve the processing efficiency of cylindrical and circular ring workpieces. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall usage state structure provided by an embodiment of the present application;

[0016] Figure 2 is a schematic diagram of the bottom structure provided by an embodiment of the present application;

[0017] Figure 3 is an enlarged schematic diagram of part A provided by an embodiment of the present application.

[0018] Reference numerals: 1. Connecting block; 2. Connecting seat; 3. Lifting arm; 4. Clamping seat; 5. Connecting protrusion; 6. Positioning block; 7. Connecting column; 8. Movable seat; 9. Convex block; 10. Support arm; 11. Positioning hole; 12. Pin shaft; 13. Lifting block; 14. Adjusting nut; 15. Sliding groove; 16. Mating protrusion; 17. Stop block; 18. Gasket; 19. Connecting ear; 20. Workpiece body. Detailed Embodiments

[0019] The following further elaborates on the present application in detail with reference to the accompanying drawings.

[0020] To more clearly understand the technical solution shown in the embodiments of the present application, first, the working principle of the existing lifting tool for heavy cylindrical parts is introduced.

[0021] In the process of lifting existing heavy cylindrical parts, structures such as clamps and steel cables are used for connection. Their posture is often inclined during the lifting process. During the process of loading onto a vehicle or lifting onto a machine tool, manual assistance is required at the lower end to adjust the position, resulting in certain safety hazards in the lifting process of such workpieces. The existing large lifting tools have high manufacturing costs and can often only lift workpieces with sizes within a set small range, and their practicability is not good. Therefore, it is necessary to improve the existing lifting tools to set up a structure specifically for lifting heavy cylindrical parts to solve these existing problems.

[0022] Please refer to Figure 1 , a lifting tool for heavy cylindrical parts disclosed in the embodiments of the present application, includes: a connection block 1, a connection seat 2, a lifting arm 3, a clamping seat 4, a connection protrusion 5, a positioning block 6, a connection column 7, a movable seat 8, a convex block 9, a support arm 10, a positioning hole 11, and a pin shaft 12. The edge of the connection block 1 is a regular polygon. The connection seats 2 are respectively fixedly connected to each side surface of the connection block 1. One end of each of the lifting arms 3 is respectively movably connected to the connection seat 2. One end of the clamping seat 4 is respectively fixedly connected with a connection protrusion 5. The clamping seat 4 is cooperatively connected with the lower end of the workpiece body 20. The connection protrusions 5 are respectively cooperatively connected with the other end of each of the lifting arms 3. The positioning blocks 6 are respectively arranged equidistantly on the lower surface of the lifting arms 3. The connection column 7 is fixedly connected to the middle position at the lower end of the connection block 1. The movable seat 8 is slidably sleeved on the surface of the connection column 7. The convex blocks 9 are respectively fixedly connected to the outer surface of the movable seat 8. One end of each of the support arms 10 is respectively movably connected to the convex block 9. The positioning holes 11 are respectively and equidistantly penetrated and opened on the support arms 10. The pin shaft 12 passes through the positioning hole 11 and is cooperatively connected with the positioning block 6.

[0023] Specifically, the provided connecting block 1 can be used to connect and support various components. The specific number of its sides is set as a regular polygon according to needs, preferably a quadrilateral or a hexagon, to meet the use of workpieces with a wider range of diameters. The provided connecting seat 2 can connect the lifting arm 3, and the lifting arm 3 can provide sufficient support strength. Furthermore, the quick connection to the clamping seat 4 is achieved through the connecting protrusion 5, and it can be disassembled and replaced during the actual lifting process to meet the use of different rear plug workpiece bodies 20. In the setting of the clamping seat 4, the inner side surface inclines outward, which can achieve the effect of tightly pressing against the inner wall or edge of the workpiece during the lifting process, and cooperate with the lifting of the lower end surface to achieve the effect of quick and firm connection. The provided positioning block 6 can connect the support arm 10. By matching different positioning holes 11 with the positioning block 6, the opening angle of the lifting arm 3 can be adjusted, so that the clamping seat 4 can connect workpiece bodies 20 with different diameters. The provided movable seat 8 can slide on the connecting column 7, so that the support arm 10 tends to be in a horizontal state after connection, further realizing the transfer of force to the movable seat 8, and then being supported by the connecting column 7, which can achieve the stable operation of lifting heavier workpieces, ensuring that when the workpiece body 20 is lifted, its state remains stable without manual dragging or other attitude adjustments. The pin shaft 12 can ensure high strength and maintain stable support under shear force. This structure is more suitable for the use of ring-shaped and cylindrical workpieces compared with existing lifting tools, is more convenient to operate, has better lifting stability, improves the convenience of processing and production, and has good practical value.

[0024] Please refer to Figure 1 , as another specific implementation manner provided by the application, it further includes a lifting block 13, and the lifting block 13 is fixedly connected to the upper surface of the middle position of the connecting block 1.

[0025] Specifically, the setting of the lifting block 13 can connect the connecting block 1 with the hook of lifting equipment such as a bridge crane, improving the convenience of connection. When necessary, other anti-unhooking devices can also be connected.

[0026] Please refer to Figure 2 , as another specific implementation manner provided by the application, it further includes an adjusting nut 14. A threaded groove is provided on the surface of the connecting column 7, and the adjusting nut 14 is threadedly connected to the surface of the connecting column 7 corresponding to the lower end of the movable seat 8.

[0027] Specifically, the setting of the adjusting nut 14 can adjust the height of the movable seat 8 on the connecting column 7, so that the movable seat 8 can move its position on the connecting column 7, facilitating the adjustment of the attitude of the support arm 10 to be more horizontal, improving the force-bearing property, and enhancing the overall strength.

[0028] Please refer to Figure 3, as another specific implementation provided by the application, it further includes a chute 15 and a mating projection 16. The chute 15 is annularly and equally spaced on the surface of the connecting column 7, and the mating projections 16 are respectively and equally spaced on the inner wall of the movable seat 8. The mating projections 16 are respectively slidably connected in the chute 15.

[0029] Specifically, the setting of the chute 15 can connect the mating projections 16, so that the mating projections 16 can move up and down inside it, ensuring that the route during their movement does not deviate, while conducting the force on the movable seat 8, enabling the connecting column 7 to support the extrusion force, and also protecting the threads on the connecting column 7.

[0030] Please refer to Figure 2 , as another specific implementation provided by the application, it further includes a stop block 17, and the stop block 17 is fixedly connected to the lower end of the connecting column 7.

[0031] Specifically, the setting of the stop block 17 facilitates the support and block of the lowermost end, avoiding detachment during accidental adjustment, and enabling the lifting tool to operate within a reasonable range.

[0032] Please refer to Figure 2 , as another specific implementation provided by the application, it further includes a gasket 18, and the gaskets 18 are respectively fixedly connected to the inner surface of the clamping seat 4.

[0033] Specifically, the setting of the gasket 18 can protect the inner wall of the clamping seat 4. Its material can be made of hard buffer materials such as ceramics, which can protect the clamping seat 4 and at the same time protect the surface of the workpiece body 20, further reducing damage to the workpiece surface during lifting.

[0034] Please refer to Figure 1 , as another specific implementation provided by the application, it further includes a connecting ear 19, and the connecting ears 19 are symmetrically and fixedly connected to the two side surfaces of the clamping seat 4.

[0035] Specifically, the setting of the connecting ear 19 can be used to install components such as fixed connections to meet the connection requirements for enhancing safety, improve flexibility during use, and meet the needs of the actual scenario.

[0036] The embodiments of this specific implementation are all preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A lifting device for lifting heavy cylindrical parts, characterized in that: include: A connecting block (1), a connecting seat (2), a hanging arm (3), a clamping seat (4), a connecting protrusion (5), a positioning block (6), a connecting column (7), a movable seat (8), a protrusion (9), a supporting arm (10), a positioning hole (11), a pin shaft (12) and a workpiece body (20), wherein the edge of the connecting block (1) is a regular polygon, the connecting seat (2) is respectively fixedly connected to each side surface of the connecting block (1), one end of each of the hanging arms (3) is respectively movably connected to the connecting seat (2), one end of the clamping seat (4) is respectively fixedly connected to a connecting protrusion (5), and the clamping seat (4) is cooperatively connected to the lower end of the workpiece body (20). The connecting protrusions (5) are respectively connected to the other ends of the respective lifting arms (3), the positioning blocks (6) are respectively arranged at equal distances on the lower surface of the lifting arms (3), the connecting column (7) is fixedly connected to the middle position of the lower end of the connecting block (1), the movable seat (8) is slidably sleeved on the surface of the connecting column (7), the protrusions (9) are respectively fixedly connected to the outer surface of the movable seat (8), one end of the supporting arm (10) is respectively movably connected to the protrusions (9), the positioning holes (11) are respectively opened on the supporting arm (10) at equal distances, and the pin shaft (12) passes through the positioning hole (11) and is connected to the positioning block (6).

2. A heavy cylindrical lifting device according to claim 1, characterized in that: It also comprises a lifting block (13), wherein the lifting block (13) is fixedly connected to the upper surface at a middle position of the connecting block (1).

3. The heavy cylindrical lifting device according to claim 1, characterized in that: It also includes an adjusting nut (14), a thread groove is provided on the surface of the connecting column (7), and the adjusting nut (14) is threadedly connected to the surface of the connecting column (7) corresponding to the lower end of the movable seat (8).

4. The heavy cylindrical lifting device according to claim 1, characterized in that: It also includes a slide groove (15) and a matching protrusion (16), wherein the slide grooves (15) are arranged in an annular array at equal intervals on the surface of the connecting column (7), and the matching protrusions (16) are respectively arranged at equal intervals on the inner wall of the movable seat (8), and the matching protrusions (16) are respectively slidably connected in the slide grooves (15).

5. The heavy cylindrical lifting device according to claim 1, characterized in that: It also includes a stopper (17), wherein the stopper (17) is fixedly connected to the lower end of the connecting column (7).

6. The heavy cylindrical lifting device according to claim 1, characterized in that: It also includes gaskets (18), which are respectively fixedly connected to the inner side surfaces of the clamping seats (4).

7. The heavy cylindrical lifting device according to claim 1, characterized in that: It also comprises connecting ears (19), wherein the connecting ears (19) are symmetrically fixedly connected to the two side surfaces of the clamping seat (4).

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