Motor rotor iron core lifting appliance

Abstract

The utility model discloses a motor rotor iron core lifting appliance, which belongs to the technical field of motor production and comprises a bracket, an iron core to be transferred is arranged above the bracket, a plurality of turnbuckles are arranged on the periphery of the bracket, one side, far away from the bracket, of each turnbuckle is connected with a steel wire rope, and each steel wire rope penetrates through a pressing plate and is connected with a rigging lifting ring. The pressing plate is further provided with a plurality of pressing assemblies, rigging lifting rings, steel wire ropes and turnbuckles, the parts can be rapidly disassembled and assembled, the lifting appliance can be repeatedly used and matched with iron cores of different models conveniently, the preparation time of lifting equipment is shortened, the working efficiency is improved, and the iron cores can be prevented from deforming or loosening in the lifting process.

Description

Technical Field

[0001] This utility model belongs to the field of motor manufacturing technology, specifically a motor rotor core lifting tool. Background Technology

[0002] In the manufacturing process of motor rotor cores, traditional lamination techniques typically rely on lamination dies and the lamination of the shaft. To ensure the stability and consistency of the rotor core, tension screws are usually used to fix the core. However, in recent years, a new lamination process has emerged that eliminates the need for lamination dies and shaft lamination. Instead, the core is laminated directly using a stamping method. After lamination, the rotor core is heated as a whole and directly fitted onto the shaft during the heating process.

[0003] However, rotor cores produced using this lamination process typically lack pre-defined hanging positions, and the laminations are prone to loosening during lifting, compromising core stability. During lifting, displacement or separation of the laminations must be avoided to prevent core deformation or loosening. Furthermore, ensuring the rotor core remains horizontal when fitting it onto the shaft places even greater demands on lifting and installation. The lack of effective hanging methods and securing devices increases the risk of core loosening during transport. Utility Model Content

[0004] The purpose of this utility model is to provide a motor rotor core lifting tool to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] A motor rotor core lifting device is provided, including a bracket, with the core to be transferred placed on top of the bracket, and a plurality of turnbuckles arranged around the bracket. A steel wire rope is connected to the side of the turnbuckles away from the bracket, and the steel wire rope passes through a pressure plate and is connected to a rigging shackle. A plurality of clamping components are also provided on the pressure plate.

[0006] Furthermore, the upper part of the bracket is also provided with several lifting lugs, and turnbuckles are detachably connected to the lifting lugs. A stable connection is formed between the bracket and the wire rope. The detachable design of the lifting lugs and turnbuckles simplifies the installation and disassembly process of the lifting device and adapts to different iron core models or weights.

[0007] Furthermore, the bracket is also provided with a number of threaded holes, which correspond one-to-one with a number of clamping components for installing the clamping components.

[0008] Furthermore, the clamping assembly includes a double-ended stud, which is movably connected to the pressure plate. A nut is threadedly connected to the lower end of the double-ended stud, and the end of the double-ended stud away from the pressure plate is fixedly connected to the bracket. The movable connection design of the double-ended stud allows the pressure plate to flexibly adapt to different sizes and shapes of the iron cores to be transferred. By rotating and tightening the nut, the pressure plate moves downward along the upper end of the double-ended stud, pressing the upper surface of the iron core to be transferred, thus fixing the iron core and preventing displacement or loosening during hoisting, thereby improving the reliability of the operation.

[0009] Furthermore, several first U-shaped slots are provided above the pressure plate, and steel wire ropes are installed in each of the U-shaped slots. The arc design of the first U-shaped slots disperses the pressure on the stress points of the steel wire ropes, which not only ensures the firm fixation of the steel wire ropes, but also effectively extends the service life of the steel wire ropes. At the same time, it ensures that the force is evenly distributed during hoisting, thereby improving the safety and durability of the equipment.

[0010] Furthermore, several second U-shaped slots are provided above the pressure plate. Each of the second U-shaped slots is equipped with a double-headed stud. After the double-headed stud is positioned by the second U-shaped slot, it firmly connects the bracket to the pressure plate, thereby applying a clamping force to the iron core to be transferred. This ensures that the iron core to be transferred will not loosen or shift during the hoisting process. The structure of the second U-shaped slot can distribute the force on the double-headed stud and limit the lateral sliding of the double-headed stud, further improving the stability and safety of the hoisting process.

[0011] Furthermore, the bracket is provided with stepped circular holes inside, which can be used with bolts or washers to prevent components from loosening due to vibration during use, thereby improving the safety and reliability of the lifting device. The stepped circular hole structure is compatible with various connection methods and specifications, adapts to different working conditions, and enhances the design flexibility and practicality of the bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Rigging shackles are used to connect lifting equipment to the lifting device, forming a stable force transmission system. This ensures that the iron core to be transported is subjected to uniform force, avoiding stress concentration at single points. The pressure plate is fixed to the bracket by double-ended studs and clamps the rotor iron core with a clamping assembly. The pressure plate covers and clamps the iron core to be transported, achieving multi-point distributed fixation through the clamping assembly. This prevents the iron core from shifting or loosening during lifting. It can lift iron cores of different outer diameters, improving operational reliability. Rigging shackles, wire ropes, turnbuckles, and related components can be quickly disassembled and assembled, facilitating the reuse of the lifting device and compatibility with different iron core models. This simplifies the preparation time for lifting equipment, improves work efficiency, and prevents the iron core from deforming or loosening during lifting. Attached Figure Description

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 A schematic diagram of the overall structure of a motor rotor core lifting tool;

[0016] Figure 2 A top view of the bracket structure is provided for this utility model;

[0017] Figure 3 A top view diagram of the pressure plate structure is provided for this utility model.

[0018] In the diagram: 1. Bracket; 111. Threaded hole; 112. Stepped round hole; 2. Iron core to be transferred; 3. Turnbuckle; 4. Wire rope; 5. Pressure plate; 51. First U-shaped slot; 52. Second U-shaped slot; 6. Rigging eyelet; 7. Clamping assembly; 71. Double-ended stud; 72. Nut; 8. Lifting lug. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0020] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0021] However, there may be instances where unnecessary detailed descriptions are omitted. For example, detailed descriptions of well-known matters or repetitive descriptions of essentially the same structures may be omitted. This is to avoid unnecessarily lengthy descriptions and to facilitate understanding by those skilled in the art. Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this application and are not intended to limit the subject matter of the claims.

[0022] Please see Figure 1-3As shown in the embodiment of this utility model, a motor rotor core lifting device includes a bracket 1. A core 2 to be transferred is placed on top of the bracket 1. Several turnbuckles 3 are arranged around the bracket 1. Steel wire ropes 4 are connected to the side of each turnbuckle 3 away from the bracket 1. Each steel wire rope 4 passes through a pressure plate 5 and is connected to a rigging sling 6. Several clamping components 7 are also provided on the pressure plate 5. The bracket 1 is the core load-bearing component of the entire lifting device, used to hold the core 2 to be transferred. The turnbuckles 3 are used to connect the steel wire ropes 4 to the bracket 1. One end of the turnbuckle 4 is connected to the bracket 1, and the other end is adjusted to the length of the steel wire rope 4 via bolts. The lifting device allows for fine-tuning of its height and angle, ensuring a level position during lifting and preventing core slippage or instability caused by tilting, thus improving lifting safety. The wire rope 4 passes through the pressure plate 5 and connects to the rigging shackle 6, which in turn connects to the lifting equipment. The wire rope 4 bears the weight of the core 2 to be transferred, and the rigging shackle 6 connects the lifting device to the lifting equipment, forming a stable force transmission system that ensures uniform force distribution on the core 2 and avoids stress concentration at single points. The pressure plate 5 is fixed to the bracket 1 by double-ended studs 71 ​​and clamps the core 2 to be transferred by the clamping assembly 7. The pressure plate 5 provides overall coverage and clamping of the core 2, and the clamping assembly 7 achieves multi-point distributed fixation, preventing displacement or loosening of the core during lifting and improving operational reliability. The rigging shackle 6, wire rope 4, and turnbuckle 3 can be quickly disassembled and assembled, facilitating the reuse of the lifting device and compatibility with different core models, simplifying the preparation time for lifting equipment, and improving work efficiency.

[0023] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the upper part of the bracket 1 is also provided with several lifting lugs 8. A turnbuckle 3 is detachably connected to the lifting lug 8. The lifting lug 8 is the connection point for fixing the turnbuckle 3. A stable connection is formed between the bracket 1 and the wire rope 4. The detachable design of the lifting lug 8 and the turnbuckle 3 simplifies the installation and disassembly process of the lifting device and is suitable for different iron core models or weights.

[0024] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the bracket 1 is also provided with a number of threaded holes 111, and the number of threaded holes 111 are provided one-to-one with a number of clamping components 7 for installing the clamping components 7.

[0025] In one embodiment, see Figure 1 , Figure 2 and Figure 3As shown, the clamping assembly 7 includes a double-ended stud 71, which is movably connected to the pressure plate 5. A nut 72 is threadedly connected to the bottom of the double-ended stud 71. The movable connection design of the double-ended stud 71 allows the pressure plate 5 to flexibly adapt to different sizes and shapes of the iron core 2 to be transferred. By rotating and tightening the nut 72, the pressure plate 5 moves down along the upper end of the double-ended stud 71, so that the pressure plate 5 clamps the upper surface of the iron core 2 to be transferred, thereby fixing the iron core 2 to be transferred and preventing displacement or loosening of the iron core 2 during hoisting, thus improving the reliability of the operation.

[0026] In one embodiment, see Figure 2 and Figure 3 As shown, several first U-shaped slots 51 are provided above the pressure plate 5, and steel wire ropes 4 are installed in each of the first U-shaped slots 51. The first U-shaped slots 51 above the pressure plate 5 are used to fix the steel wire ropes 4. The two ends of the first U-shaped slots 51 are rounded to avoid wear or damage caused by sharp edges of the steel wire ropes 4 during the stress process. During operation, the steel wire ropes 4 are fixed to the pressure plate 5 by being embedded in the first U-shaped slots 51. The arc design of the first U-shaped slots 51 disperses the pressure of the steel wire ropes 4, which not only ensures the firm fixation of the steel wire ropes 4, but also effectively extends the service life of the steel wire ropes 4. At the same time, it ensures that the force is evenly distributed during the hoisting process, thereby improving the safety and durability of the equipment.

[0027] In one embodiment, see Figure 2 and Figure 3 As shown, several second U-shaped slots 52 are also provided above the pressure plate 5. Each second U-shaped slot 52 is provided with a double-headed stud 71. The second U-shaped slots 52 above the pressure plate 5 are used to install the double-headed studs 71, effectively fixing the double-headed studs 71 ​​and realizing a reliable connection between the pressure plate 5 and the bracket 1. After the double-headed studs 71 ​​are positioned by the second U-shaped slots 52, the bracket 1 is firmly connected to the pressure plate 5, thereby applying a clamping force to the iron core 2 to be transferred, ensuring that the iron core 2 to be transferred will not loosen or shift during the hoisting process. The structure of the second U-shaped slots 52 can distribute the force on the double-headed studs 71 ​​and limit the lateral sliding of the double-headed studs 71, further improving the stability and safety of the hoisting process.

[0028] In one embodiment, see Figure 2 and Figure 3 As shown, the bracket 1 has a stepped circular hole 112 inside. The stepped circular hole 112, with steps of different diameters, can accommodate components or fasteners of different sizes, such as studs or screws, providing a precise positioning function and ensuring the stability and centering of component installation. The stepped design distributes the stress area to different steps, avoiding deformation or damage to a single part due to excessive stress, thus enhancing the load-bearing capacity of the bracket 1. The stepped circular hole 112 can be used with bolts or washers to prevent components from loosening due to vibration during use, thereby improving the safety and reliability of the lifting device.

[0029] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A motor rotor core lifting device, comprising a bracket (1), wherein a core (2) to be transferred is disposed above the bracket (1), and a plurality of turnbuckles (3) are disposed around the bracket (1), wherein a steel wire rope (4) is connected to the side of the plurality of turnbuckles (3) away from the bracket (1), characterized in that, The steel wire ropes (4) all pass through the pressure plate (5) and are connected to the rigging rings (6). Several clamping components (7) are also provided on the pressure plate (5).

2. The motor rotor core lifting tool according to claim 1, characterized in that, The bracket (1) is also provided with several lifting lugs (8), and turnbuckles (3) are detachably connected to the lifting lugs (8).

3. The motor rotor core lifting tool according to claim 2, characterized in that, The bracket (1) is also provided with several threaded holes (111).

4. The motor rotor core lifting tool according to claim 1, characterized in that, The clamping assembly (7) includes a double-ended stud (71), which is movably connected to the pressure plate (5). A nut (72) is threadedly connected to the bottom of the double-ended stud (71), and the end of the double-ended stud (71) away from the pressure plate (5) is fixedly connected to the bracket (1).

5. A motor rotor core lifting tool according to claim 4, characterized in that, Several first U-shaped slots (51) are provided above the pressure plate (5), and steel wire ropes (4) are provided in each of the first U-shaped slots (51).

6. A motor rotor core lifting tool according to claim 4, characterized in that, Several second U-shaped slots (52) are also provided above the pressure plate (5), and each of the second U-shaped slots (52) is provided with a double-headed stud (71).

7. A motor rotor core lifting tool according to claim 1, characterized in that, The bracket (1) has a stepped circular hole (112) inside.

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