CN112600369A - Shielded motor rotor shaft sleeve hot sleeving process - Google Patents
Shielded motor rotor shaft sleeve hot sleeving process Download PDFInfo
- Publication number
- CN112600369A CN112600369A CN202011505890.3A CN202011505890A CN112600369A CN 112600369 A CN112600369 A CN 112600369A CN 202011505890 A CN202011505890 A CN 202011505890A CN 112600369 A CN112600369 A CN 112600369A
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- rotor shaft
- shaft sleeve
- water tank
- sleeve
- rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a shielding motor rotor shaft sleeve shrink fit process, wherein a rotor shaft sleeve (1) and a rotor shaft (4) are in interference fit through a conical surface (3), the rotor shaft sleeve (1) is completely immersed in a water bath environment of a water tank (2), the heating temperature of the water tank (2) is controlled within the range of 95 +/-5 ℃, and after full heat preservation, the rotor shaft sleeve (1) is taken out of the water tank (2) and is quickly installed on the rotor shaft (4); after the rotor shaft sleeve (1) and the rotor shaft (4) are assembled, the rotor shaft sleeve (1) is fixed on the rotor shaft (4) by adopting a locking nut (5) and a locking plate (6). The water tank water bath heating shaft sleeve is adopted, so that the device is simple and easy, the cost is lower, higher heating efficiency can be realized, and the energy-saving and consumption-reducing effects are achieved; the assembly process of the rotor shaft sleeve is simpler, more convenient and faster without depending on a high-precision tool; the possibility that the rotor shaft sleeve and the shaft neck are not mounted in place due to grinding in the mounting process is avoided to a great extent, and the stability and the safety reliability of the operation of the shaft sleeve can be effectively ensured.
Description
Technical Field
The invention relates to a sleeve heating process for a rotor shaft sleeve of a shielding motor.
Background
With the continuous application and development of nuclear power technology, the canned motor pump is widely used. The water lubrication guide bearing is a key part of the product, directly determines the running reliability of the product, takes the cooling medium water in the motor as a lubricating medium, and forms a friction pair by a rotor shaft sleeve and a guide bearing graphite material, so that the rotor can run safely and reliably. The rotor shaft sleeve and the shaft section are in small clearance fit or transition fit, so that the processing and installation procedures are simplified, but the existing requirements on the reliability and the vibration noise level of the shielding motor are improved, and the mode is not suitable for the requirements at the present stage, so that the purposes of vibration reduction and noise reduction are achieved by adopting the interference fit mode of the rotor shaft sleeve and the shaft section. Generally, different stainless steel materials are adopted for the shaft and the shaft sleeve, and the linear expansion coefficients of the stainless steel materials are different, so that the temperature of the rotor shaft sleeve during operation is considered before the heat sleeve process is determined, and then the temperature of the heat sleeve is determined, so that the condition that the shaft sleeve and the shaft are loosened during operation is avoided. The heating furnace is adopted to oxidize the surface of the shaft sleeve, and adverse effects are generated on the matching of the shaft sleeve and the shaft section.
Disclosure of Invention
The invention aims to provide a shield motor rotor shaft sleeve hot-sleeving process, which is convenient and fast in assembly mode, greatly shortens the time of the assembly process, further can greatly avoid the possibility of improper installation due to grinding of a rotor shaft sleeve and a shaft neck in the installation process, and can effectively ensure the stability and the safety and the reliability of the operation of the shaft sleeve. The technical scheme of the invention is as follows: a rotor shaft sleeve hot-sleeving process for a canned motor rotor shaft sleeve is characterized in that a rotor shaft sleeve (1) and a rotor shaft (4) are in interference fit through a conical surface (3), the rotor shaft sleeve (1) is completely immersed in a water bath environment of a water tank (2), the heating temperature of the water tank (2) is controlled within a range of 95 +/-5 ℃, and after heat is sufficiently preserved, the rotor shaft sleeve (1) is taken out of the water tank (2) and is rapidly installed on the rotor shaft (4); after the rotor shaft sleeve (1) and the rotor shaft (4) are assembled, the rotor shaft sleeve (1) is fixed on the rotor shaft (4) by adopting a locking nut (5) and a locking plate (6).
The working principle of the invention is as follows:
the rotor shaft sleeve (1) and the rotor shaft (4) are in interference fit through the conical surface (3), according to the temperature distribution characteristic of a shielding motor, the actual working temperature of the rotor shaft sleeve (1) is generally not more than 100 ℃, the assembly clearance is comprehensively considered, and the interference fit requirement can be basically met when the temperature of the hot jacket is 90 ℃, so that the water bath heating mode meets the applicability; the rotor shaft sleeve (1) is completely immersed in a water bath environment of the water tank (2), in order to ensure that the heating temperature of the rotor shaft sleeve (1) is stable, the heating temperature interval is set to be 95 +/-5 ℃, and after sufficient heat preservation, the rotor shaft sleeve (1) is taken out of the water tank (2) and is quickly installed on the rotor shaft (4); after the rotor shaft sleeve (1) and the rotor shaft (4) are assembled, the rotor shaft sleeve (1) is fixed on the rotor shaft (4) by adopting a locking nut (5) and a locking plate (6).
The invention has the beneficial effects that:
1) the water tank water bath heating shaft sleeve is adopted, and compared with a special heating furnace, the water tank water bath heating shaft sleeve is simple in equipment and lower in cost; moreover, because the heat conductivity coefficient of water is higher than that of air, compared with the air circulation heating mode of a heating furnace, the water bath heating mode adopted by the invention can realize higher heating efficiency and has the advantages of energy conservation and consumption reduction;
2) the prior structure mostly adopts a rotor shaft sleeve with a matched cylindrical surface, and a special high-precision tool is needed to ensure the centering property of the rotor shaft sleeve during installation;
3) the convenient assembly mode greatly shortens the time of the assembly process, and further can greatly avoid the possibility of improper installation caused by the grinding of the rotor shaft sleeve and the shaft neck in the installation process.
4) The shaft sleeve is sleeved on the end part of the rear shaft and adopts a combined locking form of a butting nut and a locking plate, so that the stability and the safety reliability of the operation of the shaft sleeve can be effectively ensured.
Description of the drawings:
FIG. 1 schematic view of rotor bushing heating
FIG. 2 schematic view of rotor shaft sleeve installed in rotor shaft
FIG. 3 is a view showing the rotor bushing being fixed and locked after being installed
The specific implementation mode is as follows:
as shown in figure 1, a rotor shaft sleeve shrink fit process for a canned motor rotor shaft sleeve is characterized in that a rotor shaft sleeve 1 and a rotor shaft 4 are in interference fit through a conical surface 3, the rotor shaft sleeve 1 is completely immersed in a water bath environment of a water tank 2, the heating temperature of the water tank 2 is controlled within the range of 95 +/-5 ℃, and after sufficient heat preservation, the rotor shaft sleeve 1 is taken out of the water tank 2 and is rapidly installed on the rotor shaft 4; after the rotor shaft sleeve 1 and the rotor shaft 4 are assembled, the rotor shaft sleeve 1 is fixed on the rotor shaft 4 by adopting a locking nut 5 and a locking plate 6.
The specific operation steps are as follows:
as shown in fig. 1, the rotor shaft sleeve 1 is vertically placed in the water tank 2, the water level is immersed in the rotor shaft sleeve 1, the water bath heating temperature is set within the range of 95 +/-5 ℃, after the water tank cover 7 is fully insulated, the rotor shaft sleeve 1 is taken out of the water tank 2, as shown in fig. 2, the rotor shaft sleeve 1 is quickly installed on the rotor shaft 4 through centering and positioning of the conical surface 3, as shown in fig. 3, after the rotor shaft sleeve 1 is assembled in place on the rotor shaft 4, the locking nut 5 is screwed down to tightly press and fix the rotor shaft sleeve 1 on the rotor shaft 4, and a locking plate 6 is installed between the two locking nuts 5 for mechanical locking, so that the interference fit connection of the rotor shaft sleeve 1 and the rotor shaft 4 is finally realized.
The water tank water bath heating shaft sleeve is adopted, the equipment is simple and easy, the cost is lower, and the water bath heating mode can realize higher heating efficiency due to higher heat conductivity coefficient of water compared with air, so that the water tank water bath heating shaft sleeve has the advantages of energy conservation and consumption reduction; the high-precision tool is not relied on, so that the assembly process of the rotor shaft sleeve is simpler, more convenient and faster; the possibility that the rotor shaft sleeve and the shaft neck are not mounted in place due to grinding in the mounting process is avoided to a great extent, and the stability and the safety reliability of the operation of the shaft sleeve can be effectively ensured.
Claims (1)
1. A shielding motor rotor shaft sleeve hot sleeving process is characterized in that: the rotor shaft sleeve (1) and the rotor shaft (4) are in interference fit through the conical surface (3), the rotor shaft sleeve (1) is completely immersed in a water bath environment of the water tank (2), the heating temperature of the water tank (2) is controlled within a range of 95 +/-5 ℃, and after heat is sufficiently preserved, the rotor shaft sleeve (1) is taken out of the water tank (2) and is rapidly installed on the rotor shaft (4); after the rotor shaft sleeve (1) and the rotor shaft (4) are assembled, the rotor shaft sleeve (1) is fixed on the rotor shaft (4) by adopting a locking nut (5) and a locking plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505890.3A CN112600369A (en) | 2020-12-18 | 2020-12-18 | Shielded motor rotor shaft sleeve hot sleeving process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505890.3A CN112600369A (en) | 2020-12-18 | 2020-12-18 | Shielded motor rotor shaft sleeve hot sleeving process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112600369A true CN112600369A (en) | 2021-04-02 |
Family
ID=75199442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011505890.3A Pending CN112600369A (en) | 2020-12-18 | 2020-12-18 | Shielded motor rotor shaft sleeve hot sleeving process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112600369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653302A (en) * | 2020-12-18 | 2021-04-13 | 哈尔滨电气动力装备有限公司 | Anti-rotation device for rotor thermal sleeve shielding sleeve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694906A (en) * | 1971-10-14 | 1972-10-03 | Gen Motors Corp | Method for manufacturing a high speed squirrel cage rotor |
| CN1246217A (en) * | 1997-01-29 | 2000-03-01 | 特伯考普有限公司 | Improvement in high speed rotor shafts |
| CN201049419Y (en) * | 2007-06-11 | 2008-04-23 | 山东石横特钢集团有限公司 | Detaching device for broken taper sleeve |
| CN102628747A (en) * | 2012-05-08 | 2012-08-08 | 重庆大学 | Multifunctional tribology performance test system |
| CN203604262U (en) * | 2013-11-28 | 2014-05-21 | 南阳防爆集团股份有限公司 | Fixed structure for cooperation of ventilator impeller and motor shaft extension |
| DE102014220699A1 (en) * | 2014-10-13 | 2016-05-12 | Continental Automotive Gmbh | Method for making a rotor shaft / sleeve unit and rotor shaft / sleeve unit |
| CN206764657U (en) * | 2017-06-06 | 2017-12-19 | 三峡大学 | A kind of hot installation auxiliary device of rotor axle sleeve interference |
| CN208966682U (en) * | 2018-11-01 | 2019-06-11 | 江苏东佳排灌机械有限公司 | A kind of submersible pump armature spindle and pump shaft tapered sleeve self-locking connecting device |
| CN211145116U (en) * | 2019-11-20 | 2020-07-31 | 大连电机集团有限公司 | Motor load locking emergency protection structure |
-
2020
- 2020-12-18 CN CN202011505890.3A patent/CN112600369A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694906A (en) * | 1971-10-14 | 1972-10-03 | Gen Motors Corp | Method for manufacturing a high speed squirrel cage rotor |
| CN1246217A (en) * | 1997-01-29 | 2000-03-01 | 特伯考普有限公司 | Improvement in high speed rotor shafts |
| CN201049419Y (en) * | 2007-06-11 | 2008-04-23 | 山东石横特钢集团有限公司 | Detaching device for broken taper sleeve |
| CN102628747A (en) * | 2012-05-08 | 2012-08-08 | 重庆大学 | Multifunctional tribology performance test system |
| CN203604262U (en) * | 2013-11-28 | 2014-05-21 | 南阳防爆集团股份有限公司 | Fixed structure for cooperation of ventilator impeller and motor shaft extension |
| DE102014220699A1 (en) * | 2014-10-13 | 2016-05-12 | Continental Automotive Gmbh | Method for making a rotor shaft / sleeve unit and rotor shaft / sleeve unit |
| CN206764657U (en) * | 2017-06-06 | 2017-12-19 | 三峡大学 | A kind of hot installation auxiliary device of rotor axle sleeve interference |
| CN208966682U (en) * | 2018-11-01 | 2019-06-11 | 江苏东佳排灌机械有限公司 | A kind of submersible pump armature spindle and pump shaft tapered sleeve self-locking connecting device |
| CN211145116U (en) * | 2019-11-20 | 2020-07-31 | 大连电机集团有限公司 | Motor load locking emergency protection structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653302A (en) * | 2020-12-18 | 2021-04-13 | 哈尔滨电气动力装备有限公司 | Anti-rotation device for rotor thermal sleeve shielding sleeve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |
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| RJ01 | Rejection of invention patent application after publication |