CN210619981U - Motor rotor lifting bar - Google Patents
Motor rotor lifting bar Download PDFInfo
- Publication number
- CN210619981U CN210619981U CN201921584588.4U CN201921584588U CN210619981U CN 210619981 U CN210619981 U CN 210619981U CN 201921584588 U CN201921584588 U CN 201921584588U CN 210619981 U CN210619981 U CN 210619981U
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- ring lifting
- ring
- lifting
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Abstract
The utility model discloses a motor rotor lifting bar, which comprises two semi-ring lifting bar bodies and a brass lining, wherein the two semi-ring lifting bar bodies have the same structure, and each semi-ring lifting bar body comprises a semi-circular hoop plate, a first wing plate extending from one end of the semi-circular hoop plate and a second wing plate extending from the other end of the semi-circular hoop plate; the two half ring lifting flap bodies are symmetrically arranged, the inner lifting flap circle is formed by the semicircular hoop plates of the two half ring lifting flap bodies, and the brass lining is fixed on the inner lifting flap circle through countersunk screws. The utility model discloses an electric motor rotor lifting bar need not to increase the screw at the axle head to the commonality is strong, convenient to use has solved large-tonnage rotor handling, has stood up the problem.
Description
Technical Field
The utility model relates to an electric motor rotor lifting bar.
Background
The modern motor has large capacity and high performance, the outer diameter of the rotor reaches 2.5 meters or more, and the weight reaches 50 tons. The rotor of a high-power and large-tonnage motor needs to be turned over and lifted, if the rotor is sleeved with the shaft, the shaft and the inner hole of the rotor bracket are in interference fit, the rotor is required to be heated to expand the inner hole of the bracket, and then the shaft is sleeved. The original method is to make a lifting and turning tool by a circle of screw hole at the shaft end. However, such a method of lifting and turning over cannot be adopted due to various factors such as the fact that the end face of the shaft is not allowed to be provided with a screw hole, and the like, and the tool has the problem of poor universality. The motor bearing adopts a sliding bearing, so that a rotating shaft bearing stop is utilized, and the shaft stop plays a limiting role.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing an electric motor rotor lifting bar, need not to increase the screw at the axle head to the commonality is strong, convenient to use has solved the large-tonnage rotor handling, has stood up the problem.
The technical scheme for realizing the purpose is as follows: the utility model provides an electric machine rotor lifting bar, includes two semi-ring lifting bar bodies and brass inside lining, wherein:
the two semi-ring lifting climbing bodies have the same structure, and each semi-ring lifting climbing body comprises a semi-circular hoop plate, a first wing plate extending from one end of the semi-circular hoop plate and a second wing plate extending from the other end of the semi-circular hoop plate;
the two semi-ring lifting tab bodies are symmetrically arranged, the semicircular hoop plates of the two semi-ring lifting tab bodies form a lifting tab inner circle, the first wing plates of the two semi-ring lifting tab bodies are fixed together through bolts, and the second wing plates of the two semi-ring lifting tab bodies are fixed together through bolts;
the outer side wall of each first wing plate and the outer side wall of each second wing plate are respectively provided with an inward concave groove, the grooves on the first wing plates of the two semi-ring lifting tab bodies form an annular sling mounting groove, and the grooves on the second wing plates of the two semi-ring lifting tab bodies form another annular sling mounting groove;
the brass lining is fixed on the inner circle of the lifting bar through a countersunk head screw.
The rotor lifting bar of the motor is characterized in that the thickness of the brass lining is 5 mm.
In the rotor lifting tab of the motor, a plurality of lifting tab holes are formed in the top end of the semicircular hoop plate of each half-ring lifting tab body.
The utility model discloses an electric motor rotor lifting bar has following advantage:
(1) screw holes do not need to be added at the shaft end, so that the processing cost and the working time are reduced;
(2) the universality is strong, and the bearing retainer is applicable to the same shaft diameter;
(3) the installation is quick and the use is convenient;
(4) the problems that the rotors with screw holes at the shaft ends cannot be lifted or turned over are solved.
Drawings
Fig. 1 is a top view of a motor rotor hanger of the present invention;
FIG. 2 is a front view of the rotor hanger of the motor of the present invention;
FIG. 3 is a view showing a state of the motor rotor hanger of the present invention;
fig. 4 is a usage state diagram of the motor rotor hanger of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:
referring to fig. 1, 2, 3 and 4, a rotor hanger for an electric machine according to a preferred embodiment of the present invention comprises two half-ring hanger bodies 1 and a brass liner. The two semi-ring lifting tab bodies 1 have the same structure, each semi-ring lifting tab body 1 comprises a semicircular hoop plate 11, a first wing plate 12 extending from one end of the semicircular hoop plate and a second wing plate 13 extending from the other end of the semicircular hoop plate, and a plurality of lifting tab holes 15 are formed in the top end of the semicircular hoop plate 11; the two half-ring lifting tab bodies 1 are symmetrically arranged, the semicircular hoop plates 11 of the two half-ring lifting tab bodies 1 form a lifting tab inner circle 14, the first wing plates 12 of the two half-ring lifting tab bodies 1 are fixed together through bolts 2, and the second wing plates 13 of the two half-ring lifting tab bodies 1 are fixed together through bolts 2; the lateral wall of every first pterygoid lamina 12 and the lateral wall of every second pterygoid lamina 13 are provided with inside sunken recess 16 respectively, and an annular hoist cable mounting groove is constituteed to recess 16 on the first pterygoid lamina 12 of two semi-ring hinge bodies 1, and another annular hoist cable mounting groove is constituteed to recess 16 on the second pterygoid lamina 13 of two semi-ring hinge bodies 1, and during the use, the hoist cable card prevents the hoist cable roll-off in the annular hoist cable mounting groove.
The brass lining is fixed on the inner circle of the lifting bar through a countersunk head screw. The thickness of the brass lining is 5 mm. The brass lining protects the surface of the suspended piece.
Referring to fig. 3 and 4, the motor rotor hanger of the present invention is used as follows:
1. the two half-ring lifting tab bodies 1 are hung on the bearing rail 20 and then are connected into a whole by bolts to form the lifting tab 10.
2. After the rotor 3 is heated, the size of the inner hole of the rotor bracket 31 meets the hot-sleeving condition, and then the hot-sleeving shaft 5 is heated.
3. After the rotor 3 is cooled to room temperature, the rotor is lifted out of the well 4 through the lifting rope 7 and the lifting flap 10.
4. The rotor 3 rests flat on the shelf 6 for further processing (see fig. 4).
5. And removing the lifting flap 10.
Because the motor bearing series is optimized, the nominal size of the inner diameter of the large-scale sliding bearing mainly comprises 400mm, 500mm and 600 mm. Therefore, the large motor rotor can solve the problems of lifting and turning over of all the rotors by only using a plurality of lifting bars with the structures and different inner diameters.
To sum up, the utility model discloses an electric motor rotor lifting bar need not to increase the screw at the axle head to the commonality is strong, convenient to use has solved large-tonnage rotor handling, has stood up the problem.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (3)
1. The utility model provides an electric motor rotor lifting bar which characterized in that includes two semi-ring lifting bar bodies and brass inside lining, wherein:
the two semi-ring lifting climbing bodies have the same structure, and each semi-ring lifting climbing body comprises a semi-circular hoop plate, a first wing plate extending from one end of the semi-circular hoop plate and a second wing plate extending from the other end of the semi-circular hoop plate;
the two semi-ring lifting tab bodies are symmetrically arranged, the semicircular hoop plates of the two semi-ring lifting tab bodies form a lifting tab inner circle, the first wing plates of the two semi-ring lifting tab bodies are fixed together through bolts, and the second wing plates of the two semi-ring lifting tab bodies are fixed together through bolts;
the outer side wall of each first wing plate and the outer side wall of each second wing plate are respectively provided with an inward concave groove, the grooves on the first wing plates of the two semi-ring lifting tab bodies form an annular sling mounting groove, and the grooves on the second wing plates of the two semi-ring lifting tab bodies form another annular sling mounting groove;
the brass lining is fixed on the inner circle of the lifting bar through a countersunk head screw.
2. The rotor hanger of an electric machine as recited in claim 1, wherein the brass liner has a thickness of 5 mm.
3. The rotor hanger of an electric machine according to claim 1, wherein the top end of the semicircular hoop plate of each half-ring hanger body is provided with a plurality of hanger holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584588.4U CN210619981U (en) | 2019-09-23 | 2019-09-23 | Motor rotor lifting bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584588.4U CN210619981U (en) | 2019-09-23 | 2019-09-23 | Motor rotor lifting bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210619981U true CN210619981U (en) | 2020-05-26 |
Family
ID=70759425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921584588.4U Active CN210619981U (en) | 2019-09-23 | 2019-09-23 | Motor rotor lifting bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210619981U (en) |
-
2019
- 2019-09-23 CN CN201921584588.4U patent/CN210619981U/en active Active
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| GR01 | Patent grant | ||
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