Special lifting appliance for lifting motor and mounting motor rotor
By designing a special motor hoisting tool, and utilizing a combination of lifting rods, lifting structures, and protective plates, the problems of low efficiency and insufficient safety in traditional motor hoisting methods have been solved. This has enabled the safe and stable hoisting of the motor rotor shaft, meeting the installation requirements of large-scale and precision industrial equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JUNWEI HOISTING EQUIPMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional motor hoisting methods are inefficient, unsafe, and lack installation precision, making them unsuitable for the needs of large-scale and precision industrial equipment.
A special motor lifting tool was designed. By combining the use of lifting rods, lifting structure, connecting structure and protective plate, the safety and stability of the motor rotor shaft during lifting are ensured. Wear-resistant and oil-resistant materials are used, and the protective sleeve is detachable and compatible with lifting equipment.
It improves the safety and stability of motor rotor hoisting, enhances installation accuracy, and meets the needs of large-scale and precision industrial equipment.
Smart Images

Figure CN224147501U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical lifting tools, and in particular to a special lifting tool for motor hoisting and motor rotor installation. Background Technology
[0002] The motor rotor is one of the core components of a motor, primarily responsible for converting electrical energy into mechanical energy. The design and manufacturing quality of the rotor directly affect the motor's performance, efficiency, and lifespan. A motor rotor typically consists of a rotor core, rotor windings, and a shaft. Motor hoisting refers to the operation of lifting, positioning, and installing motors during industrial production, equipment installation, and maintenance. Because motors are usually large and heavy, and require high installation precision, motor hoisting is a crucial step in motor installation and maintenance.
[0003] Traditional motor hoisting methods mainly rely on manpower and simple hoisting tools, such as manual hoists and slings. However, with the continuous increase in the size and precision of industrial equipment, traditional methods have gradually revealed problems such as low efficiency, insufficient safety, and low installation accuracy. Therefore, those skilled in the art provide a special motor hoisting and motor rotor installation hoisting tool to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a special motor hoisting and motor rotor installation lifting tool. By inserting the motor rotor shaft into the connecting hole, and then simultaneously adjusting two adjusting bolts, the movable plate is pressed down. The lower ends of the two protective plates directly act on the side wall of the motor rotor shaft. Through the cooperation and pressing of the movable plate and the protective plates, the safety and stability of the motor rotor shaft during hoisting can be guaranteed.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a special motor hoisting and motor rotor installation hoist, including a hoisting rod, wherein a lifting structure is provided at the front end of the hoisting rod, and a connecting structure is fixedly connected to the lower end of the hoisting rod;
[0006] The connecting structure includes a connecting frame, inside which a partition plate is provided. The sidewall of the partition plate is fixedly connected to the inner sidewall of the connecting frame. A movable plate is provided inside the connecting frame at the lower end of the partition plate. Two adjusting bolts are provided on the upper surface of the connecting frame. The lower ends of the two adjusting bolts pass through the upper surface of the connecting frame and the upper surface of the partition plate, respectively, and their ends are movably connected to the upper surface of the movable plate. Two protective plates are provided at the lower end of the movable plate. Two fixing screws are provided at the lower end of the two protective plates. The upper ends of the four fixing screws pass through the lower surface of the two protective plates and extend to the upper end, and their ends are threadedly connected to the lower surface of the movable plate. A connecting hole is provided at the lower center of the front sidewall of the connecting frame. The rear end of the connecting hole passes through the front sidewall of the connecting frame. A protective sleeve is provided inside the connecting hole.
[0007] With the above technical solution, when in use, the motor rotor shaft is inserted into the connecting hole, and then the two adjusting bolts are adjusted simultaneously. Then the movable plate is pressed down, and the lower ends of the two protective plates directly act on the side wall of the motor rotor shaft. Through the cooperation and pressing of the movable plate and the protective plates, the safety and stability of the motor rotor shaft during lifting can be guaranteed.
[0008] Furthermore, the lifting structure includes multiple grooves, all of which are provided on the lower end face of the lifting rod near the front end. A lifting component is sleeved on the side wall of the lifting rod near the front end. A connecting buckle is provided at the lower end of the center of the front side wall of the lifting component, and a lifting hole is provided at the upper end of the center of the front side wall of the lifting component.
[0009] With the above technical solution, in use, the lifting device can be lifted by sleeved on the side wall of the lifting rod, by engaging the connecting buckle with the groove, and by connecting the lifting equipment to the lifting hole.
[0010] Furthermore, the width of the connecting buckle is adapted to the width of the lifting rod;
[0011] The above technical solution facilitates its connection and subsequent lifting.
[0012] Furthermore, both of the aforementioned protective plates are made of nitrile rubber;
[0013] The above technical solution has good wear resistance and oil resistance, and can provide good protection and holding effect for the motor rotor.
[0014] Furthermore, the protective sleeve and the connecting hole are detachably connected;
[0015] The above technical solutions allow for replacement and disassembly as needed.
[0016] Furthermore, the protective sleeve is made of polyurethane rubber;
[0017] The above technical solution has excellent wear resistance and corrosion resistance, as well as good elasticity and tear resistance, which can prevent damage to the motor rotor due to its weight during use.
[0018] This utility model has the following beneficial effects:
[0019] 1. In this utility model, by setting up a lifting structure, by sleeve the lifting parts on the side wall of the lifting rod, by engaging the connecting buckle with the groove, and by connecting the lifting equipment to the lifting hole, the lifting process can be achieved. The structure is simple and easy to use. The connection position of the connecting buckle and the groove can also be adjusted according to the needs of use, and the installation accuracy is high.
[0020] 2. In this utility model, by setting a connection structure, the motor rotor shaft is inserted into the connection hole, and then two adjusting bolts are adjusted simultaneously. Then the movable plate is pressed down, and the lower ends of the two protective plates directly act on the side wall of the motor rotor shaft. Through the cooperation and pressing of the movable plate and the protective plates, the safety and stability of the motor rotor shaft during lifting can be guaranteed. Attached Figure Description
[0021] Figure 1 This is an isometric drawing of a special motor hoisting and motor rotor mounting fixture proposed in this utility model;
[0022] Figure 2 This is an isometric view from another perspective of a special motor hoisting and motor rotor mounting hoisting tool proposed in this utility model.
[0023] Figure 3 This is a front view of a special motor hoisting and motor rotor mounting hoisting tool proposed in this utility model;
[0024] Figure 4 This is an isometric view of the lower side of a special motor hoisting and motor rotor installation hoisting tool proposed in this utility model.
[0025] Legend:
[0026] 1. Lifting rod; 2. Lifting structure; 201. Lifting component; 202. Connecting buckle; 203. Lifting hole; 204. Groove; 3. Connecting structure; 301. Connecting hole; 302. Connecting frame; 303. Adjusting bolt; 304. Partition plate; 305. Protective plate; 306. Movable plate; 307. Fixing screw; 308. Protective sleeve. Detailed Implementation
[0027] 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.
[0028] Reference Figure 1-4 The present invention provides an embodiment of a special motor hoisting and motor rotor installation hoisting tool, including a hoisting rod 1, a lifting structure 2 at the front end of the hoisting rod 1, and a connecting structure 3 fixedly connected to the lower end of the hoisting rod 1;
[0029] The connecting structure 3 includes a connecting frame 302, inside which a partition plate 304 is provided. The sidewall of the partition plate 304 is fixedly connected to the inner sidewall of the connecting frame 302. A movable plate 306 is located inside the connecting frame 302 at the lower end of the partition plate 304. Two adjusting bolts 303 are provided on the upper surface of the connecting frame 302. The lower ends of the two adjusting bolts 303 pass through the upper surface of the connecting frame 302 and the upper surface of the partition plate 304, respectively, and their ends are movably connected to the upper surface of the movable plate 306. Two protective plates 305 are provided at the lower end of the movable plate 306. Two fixing screws 307 are provided at the lower end of each of the two protective plates 305. The four fixing screws 307... The upper end of each plate passes through the lower end face of the two protective plates 305 and extends to the upper end, and the ends are threadedly connected to the lower end face of the movable plate 306. A connecting hole 301 is provided at the lower center of the front side wall of the connecting frame 302. The rear end of the connecting hole 301 passes through the front side wall of the connecting frame 302. A protective sleeve 308 is provided inside the connecting hole 301. By inserting the motor rotor shaft into the connecting hole 301 and then simultaneously adjusting the two adjusting bolts 303, the movable plate 306 is pressed down. The lower ends of the two protective plates 305 directly act on the side wall of the motor rotor shaft. Through the cooperation and pressing of the movable plate 306 and the protective plate 305, the safety and stability of the motor rotor shaft during lifting can be guaranteed.
[0030] The lifting structure 2 includes multiple grooves 204, all of which are located on the lower end face of the front end of the lifting rod 1. A lifting component 201 is fitted onto the front end of the side wall of the lifting rod 1. A connecting buckle 202 is located at the lower end of the center of the front side wall of the lifting component 201, and a lifting hole 203 is located at the upper end of the center of the front side wall of the lifting component 201. By fitting the lifting component 201 onto the side wall of the lifting rod 1, and by engaging the connecting buckle 202 with the groove 204, the lifting equipment can be connected to the lifting hole 203 to achieve the lifting process.
[0031] The width of the connecting buckle 202 is compatible with the width of the lifting rod 1, facilitating lifting after connection. Both protective plates 305 are made of nitrile rubber, offering excellent wear and oil resistance, providing good protection and support for the motor rotor. The protective sleeve 308 is detachably connected to the connecting hole 301, allowing for replacement and disassembly as needed. The protective sleeve 308 is made of polyurethane rubber, exhibiting excellent wear and corrosion resistance, as well as good elasticity and tear resistance, preventing damage from the weight of the motor rotor during use.
[0032] Working principle: This utility model is a special motor hoisting and motor rotor installation lifting tool. In use, the lifting part 201 is sleeved on the side wall of the lifting rod 1, and the connecting buckle 202 is engaged with the groove 204. The lifting equipment is then connected to the lifting hole 203 to achieve the lifting process. The motor rotor shaft is then inserted into the connecting hole 301. By simultaneously adjusting the two adjusting bolts 303, the movable plate 306 is pressed down, and the lower ends of the two protective plates 305 directly act on the side wall of the motor rotor shaft. Through the cooperation and pressing of the movable plate 306 and the protective plates 305, the safety and stability of the motor rotor shaft during lifting can be guaranteed.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A special motor hoisting and rotor installation lifting tool, comprising a lifting rod (1), characterized in that: The front end of the boom (1) is provided with a lifting structure (2), and the lower end of the boom (1) is fixedly connected with a connecting structure (3); The connecting structure (3) includes a connecting frame (302), inside which a partition plate (304) is provided. The sidewall of the partition plate (304) is fixedly connected to the inner sidewall of the connecting frame (302). A movable plate (306) is provided inside the connecting frame (302) at the lower end of the partition plate (304). Two adjusting bolts (303) are provided on the upper surface of the connecting frame (302). The lower ends of the two adjusting bolts (303) pass through the upper surface of the connecting frame (302) and the upper surface of the partition plate (304) respectively, and their ends are movably connected to the movable plate (306). On the upper surface, two protective plates (305) are provided at the lower end of the movable plate (306). Two fixing screws (307) are provided at the lower end of the two protective plates (305). The upper ends of the four fixing screws (307) pass through the lower end surface of the two protective plates (305) and extend to the upper end, and the ends are threaded to the lower end surface of the movable plate (306). A connecting hole (301) is provided at the lower center of the front side wall of the connecting frame (302). The rear end of the connecting hole (301) passes through the front side wall of the connecting frame (302). A protective sleeve (308) is provided inside the connecting hole (301).
2. A special motor hoist, motor rotor installation hoist according to claim 1, characterized in that: The lifting structure (2) includes multiple grooves (204), all of which are provided on the lower end face of the lifting rod (1) near the front end. A lifting component (201) is sleeved on the side wall of the lifting rod (1) near the front end. A connecting buckle (202) is provided at the lower end of the center of the front side wall of the lifting component (201), and a lifting hole (203) is provided at the upper end of the center of the front side wall of the lifting component (201).
3. A special motor hoist, motor rotor installation hoist according to claim 2, characterized in that: The width of the connecting buckle (202) is adapted to the width of the hanging rod (1).
4. A special motor hoist, motor rotor installation hoist according to claim 1, characterized in that: Both of the protective plates (305) are made of nitrile rubber.
5. A special motor hoist, motor rotor installation hoist according to claim 1, characterized in that: The protective sleeve (308) and the connecting hole (301) are detachably connected.
6. A special motor hoist, motor rotor installation hoist according to claim 1, characterized in that: The protective sleeve (308) is made of polyurethane rubber.