Portable lifting appliance for inserting rotor into high-voltage motor

Abstract

The utility model discloses a portable lifting appliance for inserting a rotor into a high-voltage motor, which is suitable for inserting the rotor into the high-voltage motor and comprises a lifting appliance body, a balance lifting ring, a sleeve and a multi-size lining. The lifting appliance body comprises a vertical beam and a cross beam transversely extending from the top of the vertical beam; the balance hanging ring is movably mounted on the cross beam; the sleeve is fixed at the bottom of the vertical beam; a bushing is selected according to the size of the rotor, the bushing is assembled in the sleeve, a layer of nylon base plate is attached in the bushing, and the motor rotor hoisting tool is used for hoisting motor rotors of different models and sizes and is good in adaptability, simple in structure, safe, reliable and capable of improving working efficiency, reducing cost and avoiding scratching and rubbing.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor assembly, in particular to a portable lifting tool for inserting a rotor into a high-voltage motor. Background Art

[0002] The assembly of a motor rotor is an important process in the manufacturing process of motor products, and the assembly quality has a great impact on the service life of the motor. For traditional motor rotor insertion, two cranes, lifting slings and sleeves are required. When inserting the rotor, a large amount of time and manpower are consumed. After long-term use of the sleeves and slings, wear and replacement increase costs, and at the same time, the surface of the rotating shaft will be scratched. When inserting the rotor, the rotor and the stator are rubbed against each other due to the inconsistent heights of the two crane hooks. Therefore, it is necessary to develop a new portable lifting tool for inserting a rotor into a high-voltage motor to solve the above technical problems. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a portable lifting tool for inserting a rotor into a high-voltage motor.

[0004] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical scheme: A portable lifting tool for inserting a rotor into a high-voltage motor, applicable to inserting a rotor into a high-voltage motor, the portable lifting tool for inserting a rotor into a high-voltage motor includes:

[0005] A lifting body, which includes a vertical beam and a cross beam extending horizontally from the top of the vertical beam;

[0006] A balance lifting ring, movably installed on the cross beam;

[0007] A sleeve, fixed to the bottom of the vertical beam;

[0008] Multi-size bushings, selecting bushings according to the rotor size, the bushings are assembled on the sleeve, and a layer of nylon backing plate is attached to the bushings.

[0009] As a further improved technical scheme of the utility model, the inner diameter of the bushing is 61mm, 66mm, 71mm, 76mm, 81mm, 86mm, 91mm or 101mm.

[0010] As a further improved technical scheme of the utility model, the bushing is a brass bushing, the thickness of the bushing is not less than 6mm, and the length of the bushing is not less than 180mm.

[0011] As a further improved technical scheme of the utility model, the lifting body is integrally L-shaped, and the cross-section of the lifting body is H-shaped.

[0012] As a further improved technical scheme of the utility model, the balance lifting ring includes a slider and a lifting ring fixed to the slider, and the slider is provided with a positioning hole.

[0013] As a further improved technical solution of the present utility model, the portable hoist for inserting the rotor of a high-voltage motor further includes a first positioning pin for fixedly connecting the hoist body and the balance sling.

[0014] As a further improved technical solution of the present utility model, the slider includes a positioning plane, two positioning holes are provided on the positioning plane, a plurality of fixing holes are arranged on the cross beam, and the two first positioning pins are fixed to the positioning holes and the fixing holes from the positioning plane.

[0015] As a further improved technical solution of the present utility model, the portable hoist for inserting the rotor of a high-voltage motor further includes a handle welded to the vertical beam.

[0016] As a further improved technical solution of the present utility model, the hoist body is a Q345 hoist body, and the sleeve is a Q345 sleeve welded to the Q345 hoist body by internal and external fillet welding.

[0017] As a further improved technical solution of the present utility model, the portable hoist for inserting the rotor of a high-voltage motor further includes a second positioning pin for fixing the bushing and the sleeve.

[0018] The beneficial effects of the present utility model are as follows: The portable hoist for inserting the rotor of a high-voltage motor is used for hoisting motor rotors of different models and sizes, has good adaptability, simple structure, safety and reliability, can improve work efficiency, reduce costs, and avoid scratching and rubbing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a portable hoist for inserting the rotor of a high-voltage motor according to the present utility model;

[0020] Figure 2 is Figure 1 a partially enlarged schematic diagram;

[0021] Figure 3 is Figure 1 a schematic diagram of hoisting with a rotor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be described in detail below with reference to the embodiments shown in the drawings. Please refer to the drawings, which are the preferred embodiments of the present utility model. It should be noted that these embodiments are not limitations on the present utility model, and any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art according to these embodiments shall fall within the protection scope of the present utility model.

[0023] Please refer Figures 1 to 3, the present utility model discloses a portable lifting tool 100 for inserting a rotor of a high-voltage motor, which is applicable to the insertion of a rotor S of a high-voltage motor. The portable lifting tool 100 for inserting a rotor of a high-voltage motor includes a lifting body 1, a balance sling 2, a sleeve 3, a bushing 4, a first positioning pin 5, a second positioning pin 6 and a handle 7.

[0024] The lifting body 1 includes a vertical beam 11 and a cross beam 12 that bends horizontally and extends from the top of the vertical beam 11. The cross beam 12 is perpendicular to the vertical beam 11. The lifting body 1 is integrally L-shaped, and the cross-section of the lifting body 1 is H-shaped. Preferably, the lifting body 1 is a Q345 lifting body, and the lifting body 1 is a welded structure that requires secondary annealing to ensure sufficient rigidity, impact resistance and anti-deformation ability. The lifting body 1 mainly plays a role in stability and support. The L-shaped structure design effectively avoids the rubbing between the rotor and the stator during the process of inserting the rotor. The cross-section of the lifting body 1 is H-shaped, which better improves the support strength of the overall structure.

[0025] The balance sling 2 is movably installed on the cross beam 12. The balance sling 2 includes a slider 21 and a sling 22 fixed to the slider 21. The slider 21 is provided with a positioning hole (not shown). The first positioning pin 5 connects and fixes the lifting body 1 and the balance sling 2 through the positioning hole. The slider 21 includes a positioning plane 211, and two positioning holes are provided on the positioning plane 211. A number of fixing holes 121 are arranged on the cross beam 12. Two first positioning pins 5 are fixed to the positioning holes and the fixing holes 121 from the positioning plane 211. After the balance sling 2 moves to a predetermined position on the cross beam 12, two first positioning pins 5 are fixed from the two positioning holes on the positioning plane 211 to the corresponding fixing holes 121 on the cross beam 12 to fix the balance sling 2 to the predetermined position on the cross beam 12. The balance sling 2 moves and is fixed on the cross beam 12 as needed. Preferably, the material of the balance sling 2 is Q345, two positioning holes are provided at the balance sling plane, and the balance sling 2 freely moves on the cross beam 12 of the lifting body 1. By moving the lifting point, it is used to lift rotors S of different weights and lengths to maintain balance, mainly playing a role in adjusting balance.

[0026] The sleeve 3 is fixed to the bottom of the vertical beam 11. Preferably, the sleeve 3 is a Q345 sleeve welded to the Q345 lifting body at the inner and outer corners, which is beneficial to ensuring the weight of the lifting.

[0027] The bushing 4 is a multi-size bushing, and the bushing 4 can be selected according to the size of the rotor S. The bushing 4 is assembled on the sleeve 3. Preferably, the inner diameter of the bushing 4 can be selected as 61mm, 66mm, 71mm, 76mm, 81mm, 86mm, 91mm or 101mm. The bushing 4 is a brass bushing, the thickness of the bushing 4 is not less than 6mm, and the length of the bushing 4 is not less than 180mm. A layer of nylon backing plate 41 is attached inside the bushing 4 to avoid scratching the processing surface. The bushing 4 is fixed to the sleeve 3 through the second positioning pin 6 and can be replaced through the second positioning pin 6.

[0028] The handle 7 is welded to the vertical beam 11. The material of the handle 7 is Q235, which is convenient for fine angle adjustment when manually inserting the rotor S.

[0029] Only one portable hoist 100 for inserting the rotor of the high-voltage motor of the present utility model is required to complete the insertion of the rotor S. A bushing 4 is provided inside the sleeve 3, and the bushing 4 can be selected according to different shaft diameters. At the same time, a layer of nylon backing plate 41 is attached inside the bushing 4, which can protect the machined surface of the motor shaft from being scratched. By adjusting the position of the balance lifting ring 2, it can be applied to rotors S of different lengths, so as to ensure the level of the rotor S and avoid rubbing between the rotor S and the stator during insertion. The portable hoist 100 for inserting the rotor of the high-voltage motor is used for lifting motor rotors of different model sizes, has good adaptability, simple structure, safety and reliability, can improve work efficiency, reduce costs, and avoid scratches and rubbing.

[0030] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0031] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present utility model, and they are not intended to limit the protection scope of the present utility model. Any equivalent embodiments or changes made without departing from the technical spirit of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A portable hoist for inserting the rotor of a high-voltage motor, applicable to inserting the rotor of a high-voltage motor, characterized in that, The portable hoist for inserting the rotor of the high-voltage motor comprises: A hoist body, which includes a vertical beam and a cross beam extending horizontally from the top of the vertical beam; A balance sling, movably mounted on the cross beam; A sleeve, fixed to the bottom of the vertical beam; Bushings of multiple sizes, selected according to the rotor size, assembled in the sleeve, and a layer of nylon backing plate is attached inside the bushing.

2. The portable rotor inserting sling for high-voltage motors according to claim 1, wherein The inner diameter of the bushing is 61mm, 66mm, 71mm, 76mm, 81mm, 86mm, 91mm or 101mm.

3. The portable rotor inserting sling for high-voltage motors according to claim 1, characterized in that, The bushing is a brass bushing, the thickness of the bushing is not less than 6mm, and the length of the bushing is not less than 180mm.

4. The portable hoist for inserting the rotor of a high-voltage motor according to claim 1, characterized in that, The hoist body is integrally L-shaped, and the cross-section of the hoist body is H-shaped.

5. The portable rotor inserting sling for high-voltage motors according to claim 1, characterized in that, The balance sling includes a slider and a sling fixed to the slider, and the slider is provided with positioning holes.

6. The portable rotor inserting sling for high-voltage motors according to claim 5, characterized in that, The portable hoist for inserting the rotor of the high-voltage motor further includes a first positioning pin for connecting and fixing the hoist body and the balance sling.

7. The portable rotor inserting sling for high-voltage motors according to claim 6, characterized in that, The slider includes a positioning plane, two positioning holes are provided on the positioning plane, a number of fixing holes are arranged on the cross beam, and the two first positioning pins are fixed to the positioning holes and the fixing holes from the positioning plane.

8. The portable hoist for inserting the rotor of a high-voltage motor according to claim 1, characterized in that, The portable hoist for inserting the rotor of the high-voltage motor further includes a handle welded to the vertical beam.

9. The portable rotor inserting sling for high-voltage motors according to claim 1, characterized in that, The hoist body is a Q345 hoist body, and the sleeve is a Q345 sleeve welded to the Q345 hoist body by internal and external corner welding.

10. The portable rotor inserting sling for high-voltage motors according to claim 1, wherein, The portable hoist for inserting the rotor of the high-voltage motor further includes a second positioning pin for fixing the bushing and the sleeve.

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