A pouring body coil hoisting tool

Abstract

The utility model discloses a kind of pouring body coil hoisting tool, including lifting appliance main body and protection component. The lifting appliance main body can be hoisted and connected pouring body coil. The protection component is connected with the lifting appliance main body, and the protection component has a plate, and the overall shape of the plate is adapted to the inner wall of the pouring body coil. Wherein, when the lifting appliance main body hoists the pouring body coil, the plate is located in the column cavity of the pouring body coil. By adding a protection component to the lifting appliance main body, direct contact between the inner wall of the coil and the hard parts such as the transformer base and the support can be effectively avoided during the hoisting and installation of the pouring body coil. The plate in the protection component matches the shape of the inner wall of the coil, preventing mechanical scratching caused by shaking or deviation, ensuring the integrity of the surface of the pouring body coil, and improving the overall insulation performance and operational reliability.

Description

Technical Field

[0001] This utility model relates to the field of transformer auxiliary tooling technology, and in particular to a tooling for hoisting cast coils. Background Technology

[0002] Dry-type transformers are widely used in high-rise buildings, subways, airports, and industrial and mining enterprises due to their advantages such as good fire resistance, easy maintenance, and environmental safety. Among them, the cast-in-place coil, as one of the important components of a dry-type transformer, is usually integrally cast from epoxy resin, which has the characteristics of high insulation strength, good mechanical properties, and moisture resistance.

[0003] In the current manufacturing process of dry-type transformers, the handling and installation of cast iron coils largely rely on conventional hoisting equipment and require at least three people to participate in the hoisting operation. For example, three workers are assigned to handle the control of the lifting equipment, pushing and pulling the cast iron coils, and installing the hoisting equipment. However, existing hoisting equipment typically only achieves basic hoisting functions, lacks protective measures for the coil surface, and the large number of personnel involved increases the risk of accidents during hoisting. During actual hoisting and assembly, the inner wall of the cast iron coil often comes into contact with the base of the dry-type transformer. Any displacement or shaking can cause scratches on the inner wall, resulting in scratches on the surface of the cast iron coil. In severe cases, this can even affect its insulation performance and overall reliability.

[0004] Therefore, how to ensure the smooth and safe hoisting of the casting coil while avoiding mechanical scratches or damage during installation has become a technical problem to be solved in this field. Utility Model Content

[0005] To address the technical problem that existing hoisting fixtures cannot prevent mechanical scratches or damage to the cast coil during installation, the present invention aims to provide a hoisting fixture for the cast coil. This fixture utilizes the main body of the hoist to support and lift the cast coil, while simultaneously protecting the surface of the cast coil with plates that are compatible with the inner wall of the coil.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] This utility model provides a hoisting fixture for casting coils, including:

[0008] The lifting device body is capable of lifting and connecting the casting body coil;

[0009] A protective component is connected to the lifting device body. The protective component has a plate whose overall shape is adapted to the inner wall of the casting coil.

[0010] When the main body of the lifting device is used to lift the casting coil, the plate is located inside the cylindrical cavity of the casting coil.

[0011] In a preferred embodiment, the plate comprises a metal plate and a resin layer encasing the metal plate.

[0012] In a preferred embodiment, the plate includes a first plate and a second plate that are independent of each other, and the plate is formed by splicing the first plate and the second plate together;

[0013] Both the first plate and the second plate are arc-shaped plates, and the first plate and the second plate are arranged in a planar symmetrical distribution.

[0014] In a preferred embodiment, the protection component includes:

[0015] Several fasteners are provided, which are detachably connected to the main body of the lifting device;

[0016] A plurality of connectors are provided, which are correspondingly connected to the fixing members and are connected to the plate.

[0017] In a preferred embodiment, the upper portion of the fixing member has a hanging groove structure, and the fixing member is suspended from the lifting device body through the hanging groove structure.

[0018] In a preferred embodiment, the lifting device body includes:

[0019] A base, the base being connected to the crane, and the protective assembly being detachably connected to the base;

[0020] Two clamping mechanisms are provided, both of which are connected to the base and located below the base, and the two clamping mechanisms are arranged at a relatively interval.

[0021] In a preferred embodiment, the clamping mechanism includes:

[0022] A pipe seat, which is bolted to the base, has mounting cavities that extend through both sides;

[0023] The first clamping arm is slidably disposed within the mounting cavity of the tube seat;

[0024] The second clamping arm is slidably disposed in the mounting cavity of the tube seat, and the first clamping arm and the second clamping arm are offset from each other;

[0025] The first cylinder is connected to the outer wall of the tube seat and is drivenly connected to the first clamping arm.

[0026] The second cylinder is connected to the outer wall of the tube seat and is drivenly connected to the second clamping arm.

[0027] The first clamping arm and the second clamping arm are positioned opposite each other to form a clamping space for clamping the casting coil.

[0028] In a preferred embodiment, the first clamping arm and the second clamping arm adopt the same structure, specifically including a crossbeam, a vertical bar and a connecting flange;

[0029] The crossbeam is slidably disposed within the mounting cavity of the pipe seat, and the vertical rod is connected to the end of the crossbeam via a connecting flange;

[0030] The bottom of the vertical rod has a hook, and when the main body of the lifting device lifts the casting coil, the hook of the vertical rod supports the bottom of the casting coil.

[0031] In a preferred embodiment, a handle is provided on the outer wall of the vertical rod.

[0032] In a preferred embodiment, a slide rail structure is formed within the mounting cavity of the tube seat, and the first clamping arm and the second clamping arm are slidably disposed on the slide rail structure.

[0033] Compared with the prior art, the present invention has at least the following beneficial effects:

[0034] This utility model discloses a hoisting fixture for a castable coil, comprising a hoisting body and a protective assembly. The hoisting body is capable of hoisting and connecting the castable coil. The protective assembly is connected to the hoisting body and includes a plate whose overall shape is adapted to the inner wall of the castable coil. When the hoisting body hoists the castable coil, the plate is located within the cylindrical cavity of the castable coil.

[0035] This technology, by adding protective components to the lifting device, effectively prevents direct contact between the inner wall of the cast coil and hard parts such as the transformer base and supports during the lifting and installation of the cast coil. The plates in the protective components match the shape of the inner wall of the coil, thereby preventing mechanical scratches caused by shaking or displacement, ensuring the integrity of the cast coil surface, and improving overall insulation performance and operational reliability. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the casting coil hoisting fixture of this utility model;

[0037] Figure 2 A schematic diagram of the hoisting of the casting coil;

[0038] Figure 3 This is a schematic diagram of the main structure of the lifting device for the casting coil hoisting fixture of this utility model. Figure 1 ;

[0039] Figure 4This is a schematic diagram of the main structure of the lifting device for the casting coil hoisting fixture of this utility model. Figure 2 ;

[0040] Figure 5 This is a schematic diagram of the protective components of the casting coil hoisting fixture of this utility model;

[0041] In the picture:

[0042] 100-Lifting device body, 110-Base, 120-Pipe seat, 121-Slide rail structure, 130-Horizontal beam, 140-Vertical rod, 141-Hook, 150-Connecting flange;

[0043] 200 - Protective components, 210 - Fasteners, 220 - Connectors, 230 - Plates;

[0044] 300- Cast coil. Detailed Implementation

[0045] To facilitate understanding of this utility model, the technical solutions and advantages of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Any mechanisms or methods not elaborated in this utility model can be referred to in the prior art. The specific structures and features of this utility model are illustrated below by way of example and should not constitute any limitation on this utility model. Furthermore, any technical feature mentioned below (including implicit or disclosed features), as well as any technical feature directly shown or implied in the figures, can be arbitrarily combined or deleted among these technical features to form more other embodiments that may not be directly or indirectly mentioned in this utility model. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0046] like Figure 1-5 As shown in the figure, this embodiment provides a preferred structure for hoisting a casting coil.

[0047] like Figure 1 As shown, this embodiment provides a hoisting fixture for a castable coil, including a hoisting body 100 and a protective component 200. The hoisting body 100 is capable of hoisting and connecting the castable coil. The protective component 200 is connected to the hoisting body 100 and has a plate 230 whose overall shape is adapted to the inner wall of the castable coil. When the hoisting body 100 hoists the castable coil, the plate 230 is located within the cylindrical cavity of the castable coil.

[0048] In this application, the lifting device body 100 is used to connect with a crane or lifting equipment. The design of the lifting device body 100 can reliably fix the casting coil and realize the overall lifting of the casting coil.

[0049] like Figure 2 As shown, since the cast coil is usually cast as a whole with epoxy resin, the surface of the resin material is relatively fragile. When the cast coil is moved or shaken due to inertia during handling and installation, it is very easy for it to come into contact with the hard parts of the base of the dry-type transformer and be physically damaged.

[0050] Therefore, the innovation of this application lies in providing a protective component 200 for the lifting device body 100. This protective component 200 includes a plate 230, the outer dimensions of which are adapted to the inner wall of the cast coil, allowing it to be inserted into the cavity of the cast coil during lifting. This forms a physical isolation barrier during lifting. When the cast coil experiences slight swaying or positional shift during installation, the plate 230 can preferentially contact the rigid components of the dry-type transformer's base (e.g., the transformer's core), thereby preventing damage to the inner wall of the cast coil.

[0051] In practical use, the lifting device body 100 is first connected to the hook of the lifting equipment. The lifting device body 100 is then used to lift the casting coil. During lifting, the plate 230 of the protective component 200 is inserted into the cylindrical cavity of the casting coil. Finally, the lifting operation is carried out using the lifting equipment. Compared to the previous method of using conventional lifting tools with more than three people, this embodiment only requires one person to operate the lifting equipment and cooperate with the lifting tools to complete the entire installation of the casting coil and the removal and reuse of the lifting tools, saving labor costs, reducing the number of personnel required, and lowering safety risks.

[0052] like Figure 3 As shown, in a preferred embodiment, the lifting device body 100 includes:

[0053] Base 110, which is connected to the crane, and protective component 200 are detachably connected to base 110.

[0054] Two clamping mechanisms are provided, both of which are connected to the base 110 and located below the base 110. The two clamping mechanisms are arranged at a relatively interval.

[0055] In some possible implementations, the base 110 is a frame structure welded from several square tubes. The base 110 serves as the load-bearing core of the lifting device body 100 and is directly connected to the crane to ensure balanced force distribution throughout the lifting system. Specifically, hooks or rings can be welded to the upper surface of the base 110 for connection to the crane.

[0056] In some specific implementations, two clamping mechanisms are provided below the base 110, and the two clamping mechanisms are distributed relatively apart. In use, the two clamping mechanisms can clamp onto the outer walls of both sides of the casting coil, thereby achieving stable fixation of the coil and maintaining the balance of the casting coil during hoisting, avoiding tilting or rotation caused by unilateral force.

[0057] In some possible implementations, the protective component 200 is detachably mounted on the base 110. When hoisting different sizes of casting coils, it is possible to choose whether to replace the protective component 200 with a different size as needed, thereby improving the adaptability and versatility of the tooling.

[0058] like Figure 4 As shown, in a preferred embodiment, the clamping mechanism includes a tube seat 120, a first clamping arm, a second clamping arm, a first cylinder, and a second cylinder. The tube seat 120 is bolted to the base 110 and has mounting cavities extending through both sides. The first clamping arm is slidably disposed within the mounting cavity of the tube seat 120, and the second clamping arm is slidably disposed within the mounting cavity of the tube seat 120, with the first and second clamping arms offset from each other. The first cylinder is connected to the outer wall of the tube seat 120 and is drivenly connected to the first clamping arm. The second cylinder is connected to the outer wall of the tube seat 120 and is drivenly connected to the second clamping arm.

[0059] The first clamping arm and the second clamping arm are positioned opposite each other to form a clamping space for clamping the casting coil.

[0060] In this application, the tube seat 120 is essentially a square tube, which is fixedly connected to the base 110 by bolts. The tube seat 120 has an internal mounting cavity that extends through both sides, forming a sliding guide space for the clamping arm. The tube seat 120 ensures the overall strength and stability of the clamping mechanism.

[0061] In a preferred embodiment, a slide rail structure 121 is formed within the mounting cavity of the tube seat 120, and the first clamping arm and the second clamping arm are slidably disposed on the slide rail structure 121. Exemplarily, the slide rail structure 121 extends along the length of the tube seat 120, providing sliding guide surfaces for the first and second clamping arms. Specifically, the slide rail structure 121 is actually two sliding grooves that adapt to the first and second clamping arms. The first and second clamping arms are slidably disposed within the tube seat 120 by being embedded in the slide rails. Preferably, a polytetrafluoroethylene (PTFE) bushing can be provided on the sliding groove.

[0062] In this application, the first clamping arm is slidably mounted in the mounting cavity of the tube seat 120, and the second clamping arm is also slidably mounted in the mounting cavity, with the first and second clamping arms staggered from each other within the mounting cavity. This staggered arrangement prevents interference between the two clamping arms during relative movement, thus enabling clamping stroke within a limited space. A first cylinder and a second cylinder are respectively connected to the outer wall of the tube seat 120. The piston rod of the first cylinder is driven by the first clamping arm, and the piston rod of the second cylinder is driven by the second clamping arm. By driving the two cylinders respectively, the extension and retraction of the two clamping arms can be independently controlled.

[0063] Understandably, when the two cylinders actuate, the first and second clamping arms move towards the center, gradually reducing the clamping space to achieve stable clamping of the cast coil. When the two cylinders actuate in opposite directions, the clamping arms separate, increasing the clamping space and facilitating the loading and unloading of the tooling. Before the hoisting operation, the operator controls the actuation of the first and second cylinders to separate the first and second clamping arms, making it easier to place the cast coil into the clamping space. Subsequently, the cylinders are controlled to return, driving the first and second clamping arms to move towards each other, clamping the cast coil.

[0064] In a preferred embodiment, the first and second clamping arms adopt the same structure, specifically including a crossbeam 130, a vertical rod 140, and a connecting flange 150. The crossbeam 130 is slidably disposed within the mounting cavity of the pipe seat 120, and the vertical rod 140 is connected to the end of the crossbeam 130 via the connecting flange 150. The bottom of the vertical rod 140 has a hook 141, which supports the bottom of the casting coil when the lifting device body 100 lifts the casting coil.

[0065] In this application, the crossbeam 130 is slidably mounted on the slide rail structure 121 of the tube seat 120, serving as the main load-bearing beam of the clamping arm. Guided by the slide rail structure 121, the crossbeam 130 can move smoothly in a predetermined direction, ensuring the smoothness and accuracy of the clamping action.

[0066] In practice, a connecting seat is welded to the outer wall of the crossbeam 130, and the moving rod of the cylinder is fixedly connected to the connecting seat, thereby driving the crossbeam 130 to move.

[0067] In this application, the crossbeam 130 is a single piece of metal plate, and the vertical rod 140 is made of square tubing. The vertical rod 140 is rigidly connected to the end of the crossbeam 130 via a connecting flange 150. The connecting flange 150 can be fixed by bolts or welding to achieve the stability of the overall clamping arm structure. The vertical rod 140 extends vertically to bear the supporting force at the bottom of the casting coil.

[0068] Understandably, the bottom of the vertical rod 140 is provided with a hook 141. When the lifting device body 100 lifts the casting coil, the hook 141 of the vertical rod 140 contacts and supports the bottom of the casting coil, thereby bearing the weight during the lifting process. A flexible pad can be provided at the contact position between the hook 141 and the coil to further prevent the surface of the casting coil from being scratched.

[0069] It should be noted that, due to the large weight of the cast coil, the lifting fixture of this application does not rely on clamping for lifting. Instead, the hook 141 at the bottom of the vertical rod 140 directly contacts the bottom of the cast coil to achieve the main weight bearing during the lifting process. By supporting the bottom of the coil with the hook 141 of the vertical rod 140, the lifting fixture body 100 can reliably lift the cast coil, avoiding slippage or tilting due to insufficient clamping force.

[0070] In a preferred embodiment, a handle is provided on the outer wall of the vertical rod 140. The handle is fixed to the outer wall of the vertical rod 140 and is positioned in a way that is convenient for the operator to hold. The handle provides a gripping point for manual operation, and the operator can more easily control the position of the clamping arm when hoisting, adjusting, or disassembling the clamping arm.

[0071] like Figure 5 As shown, the protection assembly 200 includes two fasteners 210, two connectors 220, and a plate 230. The fasteners 210 are detachably connected to the lifting device body 100. The connectors 220 are correspondingly connected to the fasteners 210, and the connectors 220 are connected to the plate 230.

[0072] In some possible implementations, the fastener 210 is detachably connected to the base 110 of the lifting device body 100, for example, by means of bolts, clips, or quick-locking devices for installation and removal. This detachable design allows the protective assembly 200 to be flexibly assembled according to the specifications of the casting coil or lifting requirements, improving the versatility and ease of operation of the tooling.

[0073] In some preferred embodiments, the detachable connection method of the fastener 210 is specifically that the upper part of the fastener 210 has a hanging groove structure, and the fastener 210 is suspended on the lifting body 100 through the hanging groove structure.

[0074] Specifically, the upper part of the fastener 210 is like a hook, forming a hanging groove structure. It is suspended on the square tube of the base 110 through the hanging groove structure. The hanging groove provides a reliable detachable connection method, so that the fastener 210 can be stably suspended on the lifting device body 100.

[0075] In this application, each fastener 210 is connected to a corresponding connector 220. The connector 220 is a structural steel section, such as an I-beam. The connector 220 can be connected to the fastener 210 via bolts. One end of the connector 220 is connected to the fastener 210, and the other end is connected to the plate 230, ensuring that the plate 230 can stably maintain its predetermined position during hoisting. The connection to the plate 230 can be achieved through bolts, adhesives, or welding.

[0076] like Figure 5 As shown, plate 230 includes a first plate and a second plate that are independent of each other, and plate 230 is formed by splicing the first plate and the second plate. Both the first plate and the second plate are curved plates, and the first plate and the second plate are symmetrically distributed in a plane.

[0077] Understandably, the two arc-shaped plates are spliced ​​together symmetrically along the inner wall of the coil to form a complete plate 230. A fixing member 210, a connecting member 220 and the first plate body are interconnected to form part of the protection assembly 200, and another fixing member 210, another connecting member 220 and the second plate body are interconnected to form another part of the protection assembly 200.

[0078] In this application, the arc-shaped plate is adapted to the inner wall of the cast coil, and can fit against the inner wall of the coil during hoisting to form a protective layer, effectively preventing the inner wall of the coil from contacting the hoisting or installation equipment and causing scratches.

[0079] In a preferred embodiment, plate 230 includes a metal plate and a resin layer encasing the metal plate. The metal plate serves as the skeleton of plate 230, providing rigidity and strength. The metal plate can be made of steel, ensuring the structural strength and stability of plate 230 and preventing bending or deformation during hoisting. The resin layer, covering the outer surface of the metal plate, forms a buffer surface that contacts the inner wall of the casting coil. The resin layer can be made of epoxy resin, polyurethane, or other highly wear-resistant, low-friction materials to improve friction resistance and prevent the metal plate from directly scratching the inner wall of the casting coil.

[0080] The above embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hoisting fixture for a cast coil, characterized in that, include: The lifting device body is capable of lifting and connecting the casting body coil; A protective component is connected to the lifting device body. The protective component has a plate whose overall shape is adapted to the inner wall of the casting coil. When the main body of the lifting device is used to lift the casting coil, the plate is located inside the cylindrical cavity of the casting coil.

2. The casting coil hoisting fixture as described in claim 1, characterized in that: The plate includes a metal plate and a resin layer that wraps around the metal plate.

3. The casting coil hoisting fixture as described in claim 1, characterized in that: The plate includes a first plate and a second plate that are independent of each other, and the plate is formed by splicing the first plate and the second plate together; Both the first plate and the second plate are arc-shaped plates, and the first plate and the second plate are arranged in a planar symmetrical distribution.

4. A hoisting fixture for a cast coil as described in any one of claims 1 to 3, characterized in that, The protection component includes: Several fasteners are provided, which are detachably connected to the main body of the lifting device; A plurality of connectors are provided, which are correspondingly connected to the fixing members and are connected to the plate.

5. The casting coil hoisting fixture as described in claim 4, characterized in that: The upper part of the fixing member has a hanging groove structure, and the fixing member is suspended on the main body of the lifting device through the hanging groove structure.

6. The casting coil hoisting fixture as described in claim 1, characterized in that, The lifting device body includes: A base, the base being connected to the crane, and the protective assembly being detachably connected to the base; Two clamping mechanisms are provided, both of which are connected to the base and located below the base, and the two clamping mechanisms are arranged at a relatively interval.

7. The casting coil hoisting fixture as described in claim 6, characterized in that, The clamping mechanism includes: A pipe seat, which is bolted to the base, has mounting cavities that extend through both sides; The first clamping arm is slidably disposed within the mounting cavity of the tube seat; The second clamping arm is slidably disposed in the mounting cavity of the tube seat, and the first clamping arm and the second clamping arm are offset from each other; The first cylinder is connected to the outer wall of the tube seat and is drivenly connected to the first clamping arm. The second cylinder is connected to the outer wall of the tube seat and is drivenly connected to the second clamping arm. The first clamping arm and the second clamping arm are positioned opposite each other to form a clamping space for clamping the casting coil.

8. The casting coil hoisting fixture as described in claim 7, characterized in that: The first clamping arm and the second clamping arm adopt the same structure, specifically including a crossbeam, a vertical rod and a connecting flange; The crossbeam is slidably disposed within the mounting cavity of the pipe seat, and the vertical rod is connected to the end of the crossbeam via a connecting flange; The bottom of the vertical rod has a hook, and when the main body of the lifting device lifts the casting coil, the hook of the vertical rod supports the bottom of the casting coil.

9. The casting coil hoisting fixture as described in claim 8, characterized in that: The outer wall of the vertical rod is provided with a handle.

10. The casting coil hoisting fixture as described in claim 8, characterized in that: A slide rail structure is formed inside the mounting cavity of the tube seat, and the first clamping arm and the second clamping arm are slidably disposed on the slide rail structure.

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