Hoisting tool for coil
By designing a lifting fixture with a support plate, lifting base, and rotating shaft, the problem that existing lifting fixtures cannot lift horizontal coils was solved, enabling the lifting of both vertical and horizontal coils, expanding the range of applications, and protecting the lifting slings.
Patent Information
- Application Number
- CN202522745284.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-12-25
AI Technical Summary
Existing lifting equipment cannot be used for horizontal lifting, resulting in a limited range of applications.
Design a lifting fixture that includes a support plate, a lifting base, and a lifting sling. One end of the lifting sling is fixed to a rotating shaft, and the other end is detachable from the lifting base. It is connected by a crane hook to accommodate coil lifting in different postures.
It enables the hoisting of both vertical and horizontal attitude coils, expanding its applicability and facilitating the storage of slings while protecting them from damage.
Smart Images
Figure CN223892262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting technology, and more specifically, to a hoisting fixture for coils. Background Technology
[0002] In the existing technology, the hoisting of amorphous triangular three-dimensional transformer coils involves changing the position and arrangement of the wound transformer coils using lifting and turning equipment. In the existing technology, the coils are tied to the core column of the iron core with slings or hooked to the yoke with hooks, and then transported by crane, which is inefficient.
[0003] Currently, commonly used triangular three-dimensional coil core lifting tools are used to lift and transport the coil core quickly and easily by inserting the triangular hook part of the lifting tool into the triangular hole of the three-dimensional coil core and rotating it to hook onto the three sides of the triangular hole. This saves manpower and material costs and greatly improves production efficiency. However, coil cores need to be lifted in both vertical and horizontal positions during assembly. The aforementioned lifting tools can only be used for vertical lifting operations and cannot be used for horizontal lifting operations, which is a significant limitation.
[0004] In summary, how to solve the technical problem that existing hoisting tools cannot be used for horizontal hoisting, resulting in a limited range of applications, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a lifting fixture for coils, which can solve the technical problem that existing lifting fixtures cannot be used for horizontal lifting, resulting in a limited range of applications. To achieve the above objective, this utility model provides the following technical solution:
[0006] A coil lifting fixture, comprising:
[0007] The support plate has a connection hole in its center for connecting the hook of the crane;
[0008] At least two lifting seats are respectively disposed on the front and rear sides of the connecting hole, and at least two lifting seats are respectively disposed on the left and right sides of the connecting hole, and each lifting seat is rotatably provided with a rotating shaft;
[0009] A sling is used to suspend the coil. One end of the sling is fixed to the rotating shaft, and the other end of the sling is detachably mounted on the lifting base.
[0010] In one embodiment, the hoisting base has a rotating hole, and the rotating shaft is coaxially rotatably assembled in the rotating hole. Both ends of the rotating shaft are provided with stoppers to prevent the rotating shaft from axially disengaging from the rotating hole.
[0011] In one embodiment, the stop is a circular plate coaxially mounted on the rotating shaft, with two circular plates tightly attached to both ends of the lifting base.
[0012] In one embodiment, the rotating shaft passes through the rotating hole of the hoisting base, the inner wall of the rotating hole is clearance-fitted with the rotating shaft, and the diameter of the circular plate is larger than the diameter of the rotating hole.
[0013] In one embodiment, the end of the sling away from the rotation axis is provided with a hook.
[0014] In one embodiment, the lifting base is further provided with a fixed shaft, which is used to hook the hook.
[0015] In one embodiment, a hand crank is coaxially provided at the end of the rotating shaft away from the lifting base.
[0016] In one embodiment, a servo motor is provided at the end of the hoisting base away from the hand crank, and the drive shaft of the servo motor is coaxially connected to the rotating shaft.
[0017] In one embodiment, the support plate includes an integrally formed arc-shaped plate and a rectangular plate. The connection between the arc-shaped plate and the rectangular plate is provided with an inclined surface. The axis of the rotation shaft on the two lifting seats respectively located on the left and right sides of the connection hole is perpendicular to the extension direction of the inclined surface. The two lifting seats respectively located on the front and rear sides of the connection hole are aligned with the connection hole.
[0018] In one embodiment, the arc-shaped plate and the rectangular plate have a mushroom-shaped structure, and the mushroom-shaped structure is symmetrically distributed along the vertical central axis of the connecting hole.
[0019] When using the coil lifting fixture provided by this utility model, firstly, select an appropriate number of lifting seats according to the shape of the coil and its vertical or horizontal orientation. Then, separate the other end of the lifting strap on the corresponding lifting seat from the lifting seat (one end of the lifting strap is fixed on the rotating shaft). Next, pass the lifting strap through the coil and then fix it to the lifting seat. Finally, hook the crane hook into the connecting hole to perform the overall lifting operation of the device and the coil using the crane, and move the coil to the desired position.
[0020] After the coil hoisting operation is completed, separate one end of the sling from the hoisting base, then separate the sling from the coil. Finally, rotate the rotating shaft to rewrap the other end of the sling around it, or detachably fix the other end of the sling to the hoisting base. This device can hoist different types of coils and coils in different postures, with a wide range of applications. Furthermore, this device facilitates the storage of the sling and protects it from damage.
[0021] This application primarily focuses on the design of "amorphous delta transformer coils," but the device can also be applied to other coils requiring hoisting. Furthermore, it supports hoisting in different coil orientations, including vertical (with three triangularly distributed lifting rings at the top) and horizontal (with four lifting rings at the top) orientations. When hoisting a vertical coil, three appropriately positioned hoisting seats can be selected, with their straps connected to the three lifting rings at the top of the coil. When hoisting a horizontal coil, four appropriately positioned hoisting seats can be selected, with their straps connected to the four lifting rings at the top of the coil.
[0022] In summary, the coil lifting fixture provided by this utility model can solve the technical problem that existing lifting fixtures cannot be used for horizontal lifting, resulting in a limited range of applications. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0024] Figure 1 This is a top view of the coil lifting fixture provided by this utility model;
[0025] Figure 2 This is the front view of the hoisting fixture for the coil;
[0026] Figure 3 This is a schematic diagram of the support plate.
[0027] Figures 1-3 middle:
[0028] 1 is the support plate, 2 is the hoisting seat, 3 is the hoisting strap, 4 is the rotating shaft, 5 is the fixed shaft, 6 is the hand crank, 7 is the connecting hole, 8 is the arc plate, 9 is the rectangular plate, 10 is the inclined surface, and 11 is the stop. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] The core of this utility model is to provide a lifting fixture for coils, which can solve the technical problem that existing lifting fixtures cannot be used for horizontal lifting, resulting in a limited range of applications.
[0031] Please refer to Figure 1 and Figure 2 This specific embodiment provides a coil lifting fixture, including:
[0032] The support plate 1 has a connection hole 7 at its center for connecting the hook of the crane;
[0033] At least two lifting seats 2 are respectively located on the front and rear sides of the connecting hole 7, and at least two lifting seats 2 are respectively located on the left and right sides of the connecting hole 7, and each lifting seat 2 is rotatably provided with a rotating shaft 4;
[0034] The sling 3 is used to lift the coil. One end of the sling 3 is fixed on the rotating shaft 4, and the other end of the sling 3 is detachably mounted on the lifting base 2.
[0035] It should be noted that one end of the sling 3 is fixed to the rotating shaft 4, which means that one end of the sling 3 is welded to the rotating shaft 4. The other end of the sling 3 is detachably mounted on the lifting base 2. This means that when the sling 3 is not in use, the rotating shaft 4 can be rotated to wrap the sling 3 around the rotating shaft 4, and then the other end of the sling 3 can be wrapped around other parts of the lifting base 2. Alternatively, a hook can be set at the other end of the sling 3, and the sling 3 can be hooked onto the lifting base 2 to effectively store the sling 3 and protect it from damage.
[0036] In practical applications, the shape, size, number, material, and specific location of the support plate 1, lifting seat 2, lifting strap 3, and rotating shaft 4 can be determined according to the actual situation and needs.
[0037] When using the coil lifting fixture provided by this utility model, firstly, select an appropriate number of lifting seats 2 according to the shape of the coil and its vertical or horizontal orientation. Then, separate the other end of the lifting strap 3 on the corresponding lifting seat 2 from the lifting seat 2 (one end of the lifting strap 3 is fixed on the rotating shaft 4). After that, pass the lifting strap 3 through the coil and then fix it on the lifting seat 2. Finally, hook the crane hook into the connecting hole 7 to perform the overall lifting operation of this device and the coil using the crane, and move the coil to the desired position.
[0038] After the coil hoisting operation is completed, separate one end of the sling 3 from the hoisting base 2, then separate the sling 3 from the coil. Finally, rotate the rotating shaft 4 to rewrap the other end of the sling 3 around the rotating shaft 4, or detachably fix the other end of the sling 3 to the hoisting base 2. This device can hoist different types of coils and coils in different postures, with a wide range of applications. At the same time, this device facilitates the storage of the sling 3 and protects the sling 3 from damage.
[0039] It should be noted that this device can lift coils of different types and in different orientations. This application is mainly designed for "amorphous delta transformer coils". Of course, this device can also be used for other coils that need to be lifted.
[0040] Furthermore, the device can be used to lift coils in different orientations, including vertical orientation (where the coil has three triangularly distributed lifting rings at its top) and horizontal orientation (where the coil has four lifting rings at its top). When lifting a vertical coil using this device, three appropriately positioned lifting seats 2 can be selected, and the lifting straps 3 of each seat 2 are connected to the three lifting rings at the top of the coil. When lifting a horizontal coil using this device, four appropriately positioned lifting seats 2 can be selected, and the lifting straps 3 of each seat 2 are connected to the four lifting rings at the top of the coil. In summary, the coil lifting fixture provided by this invention solves the technical problem that existing lifting fixtures cannot be used for horizontal orientation lifting, resulting in a limited range of applications.
[0041] In one embodiment, the lifting base 2 has a rotating hole, and the rotating shaft 4 is coaxially rotatably mounted in the rotating hole. Both ends of the rotating shaft 4 are provided with stoppers 11 to prevent the rotating shaft 4 from axially disengaging from the rotating hole. That is, the stoppers 11 can prevent the rotating shaft 4 from axially disengaging from the lifting base 2, thus avoiding the rotating shaft 4 from disengaging from the lifting base 2 and causing the coil to fall and be damaged.
[0042] In one embodiment, the stop 11 is a circular plate coaxially mounted on the rotating shaft 4. Two circular plates are tightly attached to both ends of the lifting base 2 to facilitate the manufacturing of the stop 11 and ensure its stopping effect. Specifically, two stop 11s can be respectively positioned at both ends of the lifting base 2. Each stop 11 has a through hole for the rotating shaft 4 to pass through, preventing the rotating shaft 4 from detaching from the lifting base 2 during lifting operations.
[0043] In one embodiment, the rotating shaft 4 passes through the rotating hole of the hoisting base 2, and the inner wall of the rotating hole is clearance-fitted with the rotating shaft 4. The diameter of the circular plate is larger than the diameter of the rotating hole to ensure that the rotating shaft 4 does not detach from the hoisting base 2 during hoisting operations.
[0044] In one embodiment, the end of the sling 3 furthest from the rotating shaft 4 is provided with a hook. Specifically, one end of the sling 3 (the end where the sling 3 is fixed to the rotating shaft 4) is welded to the rotating shaft 4, and the other end of the sling 3 (the end furthest from the rotating shaft 4) is provided with a hook. When the sling 3 is not in use and needs to be stored, the end of the sling 3 closest to the rotating shaft 4 can be welded to the rotating shaft 4, the sling 3 can be wrapped around the rotating shaft 4, and finally hooked onto the lifting base 2. By providing a hook, the stability of the sling 3 during storage can be improved, preventing the sling 3 from detaching from the rotating shaft 4 and being damaged when not in use.
[0045] In addition, if no hook is installed, a lifting ring can be installed on the lifting base 2. During lifting, the end of the unused sling 3 can be tied to the lifting ring for fixation.
[0046] In one embodiment, the lifting base 2 is also provided with a fixed shaft 5, which is used to hook the hook.
[0047] It should be noted that the fixed shaft 5 can be aligned with the rotating shaft 4, and the fixed shaft 5 can be positioned below the rotating shaft 4 at intervals. When using this device, one end of the sling 3 is fixed to the rotating shaft 4. After the other end of the sling 3 passes through the coil, the hook is hooked onto the corresponding fixed shaft 5, thereby fixing the length of the sling 3 to ensure the stability of the coil. If the fixed shaft 5 is not provided, the hook can be directly hooked onto the rotating shaft 4.
[0048] In one embodiment, a handwheel 6 is coaxially mounted on the end of the rotating shaft 4 furthest from the lifting base 2. To facilitate the rotation of the rotating shaft 4 by workers, the handwheel 6 is coaxially mounted on the end of the rotating shaft 4 furthest from the lifting base 2. Furthermore, by mounting the handwheel 6, the torque required for workers to rotate the rotating shaft 4 is increased, thus facilitating rotation and reducing the labor required. That is, rotating the handwheel 6 drives the rotating shaft 4 to rotate, allowing for rapid winding of the sling 3 and adjustment of its length. When it is necessary to secure the free end of the sling 3, the hook at the free end of the sling 3 can be hooked onto the corresponding fixed shaft 5, or the free end of the sling 3 can be secured to the lifting base 2 by other means. During the hoisting process, the sling 3 will be taut under the weight of the coil. Moreover, since the free end of the sling 3 is fixed to the fixed shaft 5 or the hoisting seat 2, it will not cause the rotating shaft 4 and the hand crank 6 to rotate. That is, the force exerted by the coil on the sling 3 is a force along the length of the sling 3, which will not drive the hand crank 6 to rotate, and there will be no accident of the heavy object falling.
[0049] It should be noted that if the hand crank 6 is not provided, the rotating shaft 4 can be set as an L-shaped rod. The horizontal section of the rotating shaft 4 is rotatably mounted on the hoisting base 2, and the vertical section of the rotating shaft 4 is used for the operator to manually drive the rotating shaft 4 to rotate.
[0050] It should also be noted that when hoisting the coil, the lifting straps 3 must first be passed through the coil and fixed to the hoisting base 2. Then, the hook of the crane is used to connect with the connecting hole 7, and the entire device and coil are hoisted by the crane. Specifically, passing the lifting straps 3 through the coil and fixing them to the hoisting base 2 means that all the lifting straps 3 pass through the corresponding lifting rings of the coil, and then the free ends of the lifting straps 3 are wrapped and fixed to the hoisting base 2 (if the ends of the lifting straps 3 have hooks, then the lifting straps 3 are wrapped around the rotating shaft 4 and hooked onto the hoisting base 2). At this time, the length of each lifting strap 3 is fixed and can be uniform. After all the lifting straps 3 are wound, the crane is used to lift the support plate 1. At this time, all the lifting straps 3 are tightened together, thereby raising the coil and ensuring the smooth lifting of the coil. In one embodiment, a servo motor is provided at the end of the hoisting base 2 away from the hand crank 6. The drive shaft of the servo motor is coaxially and fixedly connected to the rotating shaft 4, thereby controlling the rotation of the rotating shaft 4 through the servo motor. At this time, the hand crank 6 mainly plays a limiting role for the sling 3, preventing the sling 3 from slipping off the end of the rotating shaft 4 when it is wrapped around the rotating shaft 4.
[0051] In one embodiment, such as Figure 3 As shown, the support plate 1 includes an integrally formed arc-shaped plate 8 and a rectangular plate 9. An inclined surface 10 is provided at the connection between the arc-shaped plate 8 and the rectangular plate 9. The axes of the rotating shafts 4 on the two lifting seats 2 located on the left and right sides of the connection hole 7 are perpendicular to the extension direction of the inclined surface 10. The two lifting seats 2 located on the front and rear sides of the connection hole 7 are aligned with the connection hole 7. This arrangement of the support plate 1 and the four lifting seats 2 allows the four lifting seats 2 to adapt to different coil lifting postures. Moreover, the arc-shaped plate 8 and the rectangular plate 9 are integrally formed connectors, which effectively saves raw materials, and the integral molding process improves structural strength and stability, extending the service life of the device.
[0052] In one embodiment, the arc-shaped plate 8 and the rectangular plate 9 have a mushroom-shaped structure, which is symmetrically distributed along the vertical central axis of the connecting hole 7 to minimize the size of the support plate 1, reduce the material cost of the support plate 1, and effectively improve the aesthetics of the support plate 1. Of course, in actual application, the arc-shaped plate 8 and the rectangular plate 9 can be set to other shapes according to the actual situation and needs.
[0053] In addition, it should be noted that the orientation or positional relationship indicated by "front and back", "left and right", etc. in this application is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the purpose of simplifying the description and making it easier to understand, and does 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, it should not be construed as a limitation of this utility model.
[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.
[0055] The coil lifting fixture provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A lifting fixture for coils, characterized in that, include: The support plate (1) has a connection hole (7) at its center for connecting the hook of the crane. At least two of the lifting seats (2) are respectively located on the front and rear sides of the connecting hole (7), and at least two of the lifting seats (2) are respectively located on the left and right sides of the connecting hole (7), and each of the lifting seats (2) is rotatably provided with a rotating shaft (4). The sling (3) is used to lift the coil. One end of the sling (3) is fixed on the rotating shaft (4), and the other end of the sling (3) is detachably mounted on the lifting seat (2).
2. The coil lifting fixture according to claim 1, characterized in that, The hoisting base (2) has a rotating hole, and the rotating shaft (4) is coaxially mounted in the rotating hole. Both ends of the rotating shaft (4) are provided with stoppers (11) to prevent the rotating shaft (4) from axially disengaging from the rotating hole.
3. The coil lifting fixture according to claim 2, characterized in that, The stop (11) is a circular plate coaxially mounted on the rotating shaft (4), and the two circular plates are tightly attached to both ends of the lifting seat (2).
4. The coil lifting fixture according to claim 3, characterized in that, The rotating shaft (4) passes through the rotating hole of the hoisting base (2), and the inner wall of the rotating hole is clearance-fitted with the rotating shaft (4). The diameter of the circular plate is larger than the diameter of the rotating hole.
5. The coil lifting fixture according to any one of claims 1 to 4, characterized in that, The sling (3) has a hook at the end away from the rotating shaft (4).
6. The coil lifting fixture according to claim 5, characterized in that, The hoisting base (2) is also provided with a fixed shaft (5), which is used to hook the hook.
7. The coil lifting fixture according to any one of claims 1 to 4, characterized in that, A hand crank (6) is coaxially provided at one end of the rotating shaft (4) away from the lifting base (2).
8. The coil lifting fixture according to claim 7, characterized in that, A servo motor is provided at one end of the hoisting base (2) away from the hand crank (6), and the drive shaft of the servo motor is coaxially connected to the rotating shaft (4).
9. The coil lifting fixture according to any one of claims 1 to 4, characterized in that, The support plate (1) includes an integrally formed arc plate (8) and a rectangular plate (9). The connection between the arc plate (8) and the rectangular plate (9) is provided with an inclined surface (10). The axis of the rotating shaft (4) on the two lifting seats (2) on the left and right sides of the connecting hole (7) is perpendicular to the extension direction of the inclined surface (10). The two lifting seats (2) on the front and rear sides of the connecting hole (7) are aligned with the connecting hole (7).
10. The coil lifting fixture according to claim 9, characterized in that, The arc-shaped plate (8) and the rectangular plate (9) have a mushroom-shaped structure, and the mushroom-shaped structure is symmetrically distributed on the left and right sides along the vertical central axis of the connecting hole (7).