Hoisting clamping device
By designing a hoisting clamping device and using a limiting structure to restrict the relative movement of the clamping components, the problem of the expansion shaft coming off was solved, thus achieving stability and safety in the hoisting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN LIUXIN ELECTRONICS NEW MATERIAL
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-15
AI Technical Summary
In the current hoisting process, the center of gravity of the expansion shaft and the center of gravity of the gantry crane are not on the same vertical plane, causing the paper roll to tilt and posing a risk of the expansion shaft coming off.
Design a hoisting clamping device, including a first clamping member, a second clamping member, a connecting member, and a limiting structure. The limiting structure restricts the first clamping member and the second clamping member from moving away from each other, forming a clamping space to ensure that shaft parts are fixed in the clamping space and prevent them from coming out.
It effectively prevents the expansion shaft from coming off during hoisting, reducing the risk of hoisting accidents and ensuring the stability and safety of the hoisting process.
Smart Images
Figure CN224242538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting and hoisting equipment technology, and in particular to a hoisting clamping device. Background Technology
[0002] When hoisting paper rolls, expansion shafts are typically used to tighten the core of the paper roll, and gantry cranes are used to hoist both ends of the expansion shaft. Existing gantry cranes connect the two ends of the expansion shaft via hooks. During the hoisting process, there may be a situation where the center of gravity of the paper roll and the center of gravity of the gantry crane are not in the same vertical plane, causing the whole roll to tilt and the expansion shaft to risk coming out of the hook. Utility Model Content
[0003] The purpose of this invention is to provide a hoisting clamping device to reduce the risk of the expansion shaft coming off during hoisting.
[0004] This utility model provides a lifting and clamping device for clamping shaft-type parts. The lifting and clamping device includes a first clamping member, a second clamping member, a connecting member, and a limiting structure. The first clamping member and the second clamping member are fastened together to form a clamping space. The shaft-type part is located in the clamping space and is in contact with the first clamping member and / or the second clamping member. One end of the connecting member is connected to the first clamping member and / or the second clamping member, and the other end of the connecting member is used to connect to a lifting device. The limiting structure is used to connect the first clamping member and the second clamping member and to restrict one of the first clamping member and the second clamping member from moving away from the other.
[0005] As a preferred technical solution for the hoisting clamping device, the limiting structure consists of two nuts. The first clamping member is a U-shaped structure, including a semi-annular base and a first extension rod and a second extension rod located at both ends of the base. The first extension rod and the second extension rod are respectively provided with a first threaded section and a second threaded section. The two ends of the second clamping member are respectively provided with a first outward-facing portion and a second outward-facing portion. The first outward-facing portion and the second outward-facing portion are respectively sleeved on the first threaded section and the second threaded section. The two nuts are respectively threadedly connected to the first threaded section and the second threaded section, and are respectively located on the side of the first outward-facing portion and the second outward-facing portion away from the base.
[0006] As a preferred technical solution for the hoisting and clamping device, the lower end of the connector is integrally formed and connected to the first extension rod or the second extension rod.
[0007] As a preferred technical solution for the hoisting and clamping device, the upper end of the connector is located directly above the center of the clamping space.
[0008] As a preferred technical solution for the hoisting and clamping device, the lower end of the connector is integrally formed and connected to the second clamping member, and the connection point between the connector and the second clamping member is located directly above the center of the clamping space.
[0009] As a preferred technical solution for the hoisting and clamping device, the diameters of both the first extension rod and the second extension rod are larger than the diameter of the base.
[0010] As a preferred technical solution for the hoisting and clamping device, the nut is a wing nut.
[0011] As a preferred technical solution for the hoisting clamping device, the limiting structure is a connecting pin. Both the first clamping member and the second clamping member are semi-circular structures. The lower ends of the first clamping member and the second clamping member are hinged together. The upper end of the first clamping member is provided with a first outward-facing portion, and the upper end of the second clamping member is provided with a second outward-facing portion. The first outward-facing portion and the second outward-facing portion are spaced apart, and the gap between the first outward-facing portion and the second outward-facing portion is less than the diameter of the shaft-like part. The connecting pin passes through the first outward-facing portion and the second outward-facing portion. The lower end of the connecting member is fixedly connected to the connecting pin, and the connection point between the connecting member and the connecting pin is located directly above the center position of the clamping space.
[0012] As a preferred technical solution for the lifting and clamping device, both the first clamping member and the second clamping member are semi-circular structures. The lower ends of the first clamping member and the second clamping member are hinged together. The upper end of the first clamping member is provided with a first outward-facing portion, and the upper end of the second clamping member is provided with a second outward-facing portion. The first outward-facing portion and the second outward-facing portion are spaced apart, and the gap between the first outward-facing portion and the second outward-facing portion is less than the diameter of the shaft-like part. The first outward-facing portion is provided with a first connecting hole, and the second outward-facing portion is provided with a second connecting hole. The lower end of the connecting member is provided with a first connecting portion and a second connecting portion, respectively. The first connecting portion passes through the first connecting hole and connects to the first outward-facing portion, and the second connecting portion passes through the second connecting hole and connects to the second outward-facing portion. The limiting structure consists of the first connecting portion and the second connecting portion.
[0013] As a preferred technical solution for the hoisting and clamping device, the upper end of the connector is provided with a hanging ring.
[0014] The beneficial effects of this utility model are as follows:
[0015] This utility model provides a hoisting clamping device, which clamps shaft-type parts by forming a clamping space through the fastening of a first clamping member and a second clamping member, and restricts the first clamping member and the second clamping member to move away from each other through a limiting structure, thereby confining the shaft-type parts within the clamping space and preventing them from coming out. Attached Figure Description
[0016] Figure 1 This is one of the structural schematic diagrams of the hoisting and clamping device in Embodiment 1 of this utility model;
[0017] Figure 2 This is the second schematic diagram of the hoisting and clamping device in Embodiment 1 of this utility model;
[0018] Figure 3 This is the third schematic diagram of the hoisting and clamping device in Embodiment 1 of this utility model;
[0019] Figure 4 This is a schematic diagram of the hoisting and clamping device in Embodiment 2 of this utility model;
[0020] Figure 5 This is a schematic diagram of the hoisting and clamping device in Embodiment 3 of this utility model.
[0021] In the picture:
[0022] 1. First clamping member; 11. First extension rod; 111. First threaded section; 12. Second extension rod; 121. Second threaded section; 13. First folding part; 131. First connecting hole;
[0023] 2. Second clamping member; 21. First outward-facing portion; 22. Second outward-facing portion; 23. Second folding portion; 231. Second connecting hole;
[0024] 3. Connector; 31. Hanging ring; 321. First connecting part; 322. Second connecting part;
[0025] 4. Wing nut; 5. Hinge shaft; 6. Connecting pin; 61. Pin shaft. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0030] Example 1
[0031] like Figure 1As shown, this utility model provides a lifting clamping device for clamping shaft-like parts. Specifically, the lifting clamping device is connected to the crossbeam of a lifting device and is used to clamp the expansion shaft of a paper roll, preventing the expansion shaft from coming off. The lifting clamping device includes a first clamping member 1, a second clamping member 2, a connecting member 3, and a limiting structure. The first clamping member 1 and the second clamping member 2 are fastened together to form a clamping space. The shaft-like part is located in the clamping space and is in contact with the first clamping member 1 and / or the second clamping member 2. One end of the connecting member 3 is connected to the first clamping member 1 and / or the second clamping member 2, and the other end of the connecting member 3 is used to connect to the lifting device, specifically, the other end of the connecting member 3 is fixedly or movably connected to the crossbeam of the lifting device. By connecting the first clamping member 1 and the second clamping member 2 to the lifting device using the connecting member 3, the arrangement of the first clamping member 1 and the second clamping member 2 becomes more diverse, no longer limited by their own structure and relative positional relationship with the lifting device beam. This allows for better clamping of the expansion shaft and prevents it from coming off. A limiting structure connects the first clamping member 1 and the second clamping member 2 and restricts one of them from moving away from the other. This limiting structure ensures that the first clamping member 1 and the second clamping member 2 together confine the shaft-like part within the clamping space, preventing it from coming off. The limiting structure is a rigid structure; it can be a separate component or a part of the connecting member 3, ensuring that the relative positional relationship of the first clamping member 1 and the second clamping member 2 remains unchanged after they jointly clamp the shaft-like part.
[0032] Furthermore, such as Figure 1 As shown, the limiting structure consists of two nuts. The first clamping member 1 has a U-shaped structure, including a semi-annular base and a first extension rod 11 and a second extension rod 12 located at both ends of the base. The first extension rod 11 and the second extension rod 12 are respectively provided with a first threaded section 111 and a second threaded section 121. The two ends of the second clamping member 2 are respectively provided with a first outwardly turned portion 21 and a second outwardly turned portion 22. Both the first outwardly turned portion 21 and the second outwardly turned portion 22 have holes for the first extension rod 11 and the second extension rod 12 to pass through, so that the first outwardly turned portion 21 and the second outwardly turned portion 22 are respectively fitted onto the first threaded section 111 and the second threaded section 121 to form a clamping space. The two nuts are respectively threaded to the first threaded section 111 and the second threaded section 121, and are respectively located on the side of the first outwardly turned portion 21 and the second outwardly turned portion 22 away from the base. When clamping shaft-type parts, tighten the nuts on the first threaded section 111 and the second threaded section 121 to make the first clamping member 1 and / or the second clamping member 2 fit and clamp the shaft-type parts, preventing the shaft-type parts from coming out of the clamping space.
[0033] Specifically, to facilitate manufacturing and ensure sufficient structural strength of the first clamping component 1, the base, the first extension rod 11, and the second extension rod 12 are integrated, for example, they can be integrally formed or welded together. Meanwhile, the diameters of both the first extension rod 11 and the second extension rod 12 are larger than the diameter of the base to ensure that the structural strength of the first threaded section 111 and the second threaded section 121 meets requirements after clamping shaft-like parts, while also improving the lightweight of the first clamping component 1.
[0034] Optionally, the nut in this embodiment can be a hexagonal nut, a lock nut, or a wing nut 4. In this embodiment, the nut is preferably a wing nut 4, so that the operator can tighten it without tools, allowing both the first clamping member 1 and the second clamping member 2 to fit against and clamp the shaft-like parts.
[0035] Optionally, in this embodiment, the connector 3 is connected to the first extension rod 11 or the second extension rod 12 of the first clamping member 1, and the connection method is an integral molding connection or a welding connection, thereby ensuring a reliable connection between the connector 3 and the first clamping member 1.
[0036] Further, please refer to Figure 2 As shown, the upper end of the connector 3 is located directly above the center of the clamping space. That is, the connection point between the upper end of the connector 3 and the lifting device and the connection point between the center of the clamping space are on the same vertical line. Thus, after clamping shaft parts, the connection point between the connector 3 and the lifting device and the center of gravity of the lifting clamping device are on the same vertical line, which can effectively prevent swaying or tilting. At the same time, it can ensure that the bottom support of the first clamping part 1 is evenly stressed, and avoid deformation caused by uneven load.
[0037] like Figure 3 As shown, in this embodiment, the connector 3 can also be connected to the second clamping member 2. The lower end of the connector 3 is integrally formed or welded to the second clamping member 2. The connection point between the connector 3 and the second clamping member 2 is located directly above the center of the clamping space. The connector 3 extends upward in the vertical direction, which also ensures that the connection point between the connector 3 and the lifting device is on the same vertical line as the center of gravity of the lifting clamping device. This can effectively prevent swaying or tilting, and at the same time ensure that the bottom support of the first clamping member 1 is evenly stressed, avoiding deformation caused by uneven load.
[0038] Taking an expansion shaft as an example, when using the lifting clamping device in this embodiment for lifting operations, firstly, both ends of the expansion shaft are placed inside the first clamping member 1. Then, the first outward-facing portion 21 and the second outward-facing portion 22 of the second clamping member 2 are respectively fitted onto the first threaded section 111 and the second threaded section 121. Two wing nuts 4 are then screwed into the first threaded section 111 and the second threaded section 121 and tightened, confining the expansion shaft within the clamping space. Lifting operations are then carried out. During this process, the expansion shaft cannot detach from the clamping space under the constraint of the first clamping member 1 and the second clamping member 2, thereby preventing lifting accidents.
[0039] Example 2
[0040] In this embodiment, the structures of the first clamping member 1 and the second clamping member 2 differ from those in Embodiment 1, and the corresponding limiting structures also differ from those in Embodiment 1. The following will combine... Figure 4 Provide a detailed description.
[0041] like Figure 4 As shown, the limiting structure is a connecting pin 6. Both the first clamping member 1 and the second clamping member 2 are semi-annular structures, and their lower ends are hinged together by a hinge shaft 5. The upper end of the first clamping member 1 has a first outward-facing portion 21, and the upper end of the second clamping member 2 has a second outward-facing portion 22. The first outward-facing portions 21 and 22 are spaced apart, and the gap between them is smaller than the diameter of the shaft-like part, preventing the shaft-like part from coming out through the gap. Both the first outward-facing portions 21 and 22 have pin holes (not shown in the figure). The connecting pin 6 passes through these pin holes sequentially through the first outward-facing portions 21 and 22, and the end of the connecting pin 6 is also provided with a pin shaft 61 or a cotter pin to prevent it from falling off. The lower end of the connecting member 3 is fixedly connected to the connecting pin 6, and the connection point between the connecting member 3 and the connecting pin 6 is located directly above the clamping space. Ensuring that the connection point between the connector 3 and the lifting device is on the same vertical line as the center of gravity of the lifting clamping device effectively prevents swaying or tilting, and also ensures that the bottom support of the first clamping member 1 is evenly stressed, avoiding deformation caused by uneven loading. The lower end of the connector 3 is fitted onto the connecting pin 6 and is tightly fitted with the connecting pin 6, thereby preventing relative movement between the connector 3 and the connecting pin 6.
[0042] Optionally, the upper end of the connector 3 is provided with a hanging ring 31, which is connected to the lifting device or directly connected to the hook of the lifting equipment, thereby expanding the application scenarios of the lifting clamping device.
[0043] Taking an expansion shaft as an example, when using the lifting clamping device in this embodiment for lifting operations, firstly, the first clamping member 1 and the second clamping member 2 are rotated around the hinge axis 5 in a direction away from each other. After the expansion shaft is placed in, the first clamping member 1 and the second clamping member 2 are rotated around the hinge axis 5 in a direction closer to each other until the pin holes on the first folding part 13 and the second folding part 23 are aligned. The connecting pin 6 passes through the first folding part 13, the connecting member 3, and the second folding part 23 in sequence, and the pin shaft 61 is inserted into the end of the connecting pin 6. Under the restriction of the pin shaft 61, the first clamping member 1 and the second clamping member 2 cannot rotate around the hinge axis 5 during the lifting process, thereby restricting the expansion shaft within the clamping space, and then the lifting operation is carried out. During this process, the expansion shaft cannot be dislodged from the clamping space under the restriction of the first clamping member 1 and the second clamping member 2, thereby avoiding the occurrence of lifting accidents.
[0044] Example 3
[0045] In this embodiment, the structures of the first clamping member 1 and the second clamping member 2 differ from those in Embodiment 1, and the corresponding limiting structures also differ from those in Embodiment 1. The following will combine... Figure 5 Provide a detailed description.
[0046] like Figure 5 As shown, both the first clamping member 1 and the second clamping member 2 are semi-annular structures, and their lower ends are hinged together by a hinge shaft 5. The upper end of the first clamping member 1 has a first outward-facing portion 21, and the upper end of the second clamping member 2 has a second outward-facing portion 22. The first outward-facing portion 21 and the second outward-facing portion 22 are spaced apart, and the gap between them is smaller than the diameter of the shaft-like part, preventing the shaft-like part from coming out through the gap between the first outward-facing portion 21 and the second outward-facing portion 22. The first outward-facing portion 21 has a first connecting hole 131, and the second outward-facing portion 22 has a second connecting hole 231. The lower end of the connector 3 is provided with a first connecting part 321 and a second connecting part 322. The first connecting part 321 passes through the first connecting hole 131 and connects to the first outwardly turned part 21. The second connecting part 322 passes through the second connecting hole 231 and connects to the second outwardly turned part 22. The first connecting part 321 and the second connecting part 322 are integrated. Correspondingly, the limiting structure is the first connecting part 321 and the second connecting part 322. The first connecting part 321 and the second connecting part 322 are both hook-like structures. They are connected to the first clamping member 1 and the second clamping member 2 through the first connecting hole 131 and the second connecting hole 231. Since the first connecting part 321 and the second connecting part 322 are integrated, the distance between the first outwardly turned part 21 and the second outwardly turned part 22 is limited, thereby confining the shaft-like parts within the clamping space.
[0047] Taking an expansion shaft as an example, when using the lifting clamping device in this embodiment for lifting operations, firstly, the first clamping member 1 and the second clamping member 2 are rotated around the hinge axis 5 in a direction away from each other. After the expansion shaft is placed in, the first clamping member 1 and the second clamping member 2 are rotated around the hinge axis 5 in a direction closer to each other until the first connecting part 321 and the second connecting part 322 are aligned with the first connecting hole 131 and the second connecting hole 231, respectively. The first connecting part 321 and the second connecting part 322 are then passed through the first connecting hole 131 and the second connecting hole 231, respectively. Under the constraint of the first connecting part 321 and the second connecting part 322, the distance between the first outwardly turned part 21 and the second outwardly turned part 22 is limited, thereby confining the expansion shaft within the clamping space, and then the lifting operation is carried out. During this process, the expansion shaft cannot be dislodged from the clamping space under the constraint of the first clamping member 1 and the second clamping member 2, thereby avoiding the occurrence of lifting accidents.
[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A hoisting and clamping device for clamping shaft-type parts, characterized in that, include: A first clamping member (1) and a second clamping member (2) are fastened together to form a clamping space. The shaft part is located in the clamping space and is in contact with the first clamping member (1) and / or the second clamping member (2). A connector (3), one end of which is connected to the first clamp (1) and / or the second clamp (2), and the other end of which is used to connect to a lifting device; A limiting structure is provided for connecting the first clamping member (1) and the second clamping member (2), and for restricting one of the first clamping member (1) and the second clamping member (2) from moving away from the other.
2. The hoisting clamping device according to claim 1, characterized in that, The limiting structure consists of two nuts. The first clamping member (1) is a U-shaped structure, including a semi-annular base and a first extension rod (11) and a second extension rod (12) located at both ends of the base. The first extension rod (11) and the second extension rod (12) are respectively provided with a first threaded section (111) and a second threaded section (121). The two ends of the second clamping member (2) are respectively provided with a first outwardly turned part (21) and a second outwardly turned part (22). The first outwardly turned part (21) and the second outwardly turned part (22) are respectively sleeved on the first threaded section (111) and the second threaded section (121). The two nuts are respectively threaded to the first threaded section (111) and the second threaded section (121) and are respectively located on the side of the first outwardly turned part (21) and the second outwardly turned part (22) away from the base.
3. The hoisting clamping device according to claim 2, characterized in that, The lower end of the connector (3) is integrally formed and connected to the first extension rod (11) or the second extension rod (12).
4. The hoisting clamping device according to claim 3, characterized in that, The upper end of the connector (3) is located directly above the center of the clamping space.
5. The hoisting clamping device according to claim 2, characterized in that, The lower end of the connector (3) is integrally formed and connected to the second clamping member (2), and the connection point between the connector (3) and the second clamping member (2) is located directly above the center of the clamping space.
6. The hoisting clamping device according to any one of claims 2-5, characterized in that, The diameters of the first extension rod (11) and the second extension rod (12) are both larger than the diameter of the base.
7. The hoisting clamping device according to any one of claims 2-5, characterized in that, The nut is a wing nut (4).
8. The hoisting clamping device according to claim 1, characterized in that, The limiting structure is a connecting pin (6). The first clamping member (1) and the second clamping member (2) are both semi-circular structures. The lower ends of the first clamping member (1) and the second clamping member (2) are hinged together. The upper end of the first clamping member (1) is provided with a first outward turning part (21), and the upper end of the second clamping member (2) is provided with a second outward turning part (22). The first outward turning part (21) and the second outward turning part (22) are spaced apart, and the gap between the first outward turning part (21) and the second outward turning part (22) is less than the diameter of the shaft part. The connecting pin (6) passes through the first outward turning part (21) and the second outward turning part (22). The lower end of the connecting member (3) is fixedly connected to the connecting pin (6), and the connection point between the connecting member (3) and the connecting pin (6) is located directly above the center of the clamping space.
9. The hoisting clamping device according to claim 1, characterized in that, Both the first clamping member (1) and the second clamping member (2) are semi-annular structures. The lower ends of the first clamping member (1) and the second clamping member (2) are hinged together. The upper end of the first clamping member (1) is provided with a first outward-facing portion (21), and the upper end of the second clamping member (2) is provided with a second outward-facing portion (22). The first outward-facing portion (21) and the second outward-facing portion (22) are spaced apart, and the gap between the first outward-facing portion (21) and the second outward-facing portion (22) is smaller than the diameter of the shaft part. The first outward-facing portion (21) The connector (3) is provided with a first connecting hole (131) and a second connecting hole (231) on the second outward-facing part (22). The lower end of the connector (3) is provided with a first connecting part (321) and a second connecting part (322). The first connecting part (321) passes through the first connecting hole (131) and connects to the first outward-facing part (21). The second connecting part (322) passes through the second connecting hole (231) and connects to the second outward-facing part (22). The limiting structure consists of the first connecting part (321) and the second connecting part (322).
10. The hoisting clamping device according to claim 8 or 9, characterized in that, The upper end of the connector (3) is provided with a hanging ring (31).