CN107070056B - Cone-shaped rotor motor - Google Patents
Cone-shaped rotor motor Download PDFInfo
- Publication number
- CN107070056B CN107070056B CN201710319845.0A CN201710319845A CN107070056B CN 107070056 B CN107070056 B CN 107070056B CN 201710319845 A CN201710319845 A CN 201710319845A CN 107070056 B CN107070056 B CN 107070056B
- Authority
- CN
- China
- Prior art keywords
- main shaft
- rotor
- end cover
- valve core
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000005299 abrasion Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
Abstract
A conical rotor motor is suitable for underwater operation and comprises a casing (1), a front end cover (4) and a rear end cover (5) are respectively connected with the casing in a sealing manner from the left side and the right side, one end of a main shaft (6) in a rotor extends out of the front end cover, a spring (9) is sleeved on a section of the main shaft between the rotor and the rear end cover, a valve core (12) is arranged on a part of the main shaft extending out of the front end cover, a spiral sheet (13) is arranged on the main shaft part on the left side of the valve core, a sleeve (11) is sleeved on the spiral sheet, the sleeve is connected with the front end cover in a sealing manner, a valve seat (17) is extended on the inner wall of the sleeve, the valve core is separated from the valve seat after a stator winding is electrified, and the valve core is attached to the valve seat after the stator winding is powered off. The spiral sheet and the sleeve on the main shaft form a spiral pump, and the spiral sheet plays a role in draining water when rotating along with the rotor, so that water cannot enter the casing through the sleeve, and the sealing performance between the valve core and the valve seat is not reduced due to no friction between the valve core and the valve seat when the main shaft rotates.
Description
Technical Field
The invention relates to a motor, which comprises a shell, a rotor, a front end cover and a rear end cover, wherein a main shaft in the rotor extends out of the front end cover, and a sealing device is arranged between the main shaft and the front end cover and is suitable for underwater work.
Background
The structure of the submersible motor comprises a shell, a stator, a rotor, a front end cover and a rear end cover, wherein a main shaft in the rotor extends out of the front end cover, and a sealing element is arranged between the main shaft and the front end cover so as to prevent water from entering the submersible motor along the main shaft. When the main shaft rotates, the sealing element is worn, so that the sealing performance is affected, the stator winding is wetted, the insulating performance of the stator winding is reduced, and the submersible motor is easy to damage. There is a need for an improved sealing structure for submersible motors.
Disclosure of Invention
The invention aims to provide a conical rotor motor which can avoid abrasion of sealing elements and has reliable sealing waterproof performance.
The invention solves the technical scheme that the conical rotor motor comprises a shell 1, a stator 2 and a conical rotor 3 arranged in the stator, wherein a front end cover 4 and a rear end cover 5 are respectively connected with the shell in a sealing way, one end of a main shaft 6 in the rotor extends out of the front end cover, the other end of the main shaft 6 is positioned in the rear end cover, a spring 9 is sleeved on a section of the main shaft between the rotor and the rear end cover, the conical rotor motor is characterized in that a valve core 12 is arranged on a part of the main shaft extending out of the front end cover, a spiral sheet 13 is arranged on the main shaft part on the left side of the valve core, a sleeve 11 is sleeved on the spiral sheet, the sleeve is connected with the front end cover in a sealing way, a valve seat extends out of the inner wall of the sleeve, the position of the valve seat corresponds to the valve core, the rotor moves right after the stator winding is electrified, the valve core is separated from the valve seat, and the valve core is attached to the valve seat after the stator winding is powered off.
Before the stator winding is not electrified, the valve core is attached to the valve seat by the spring, water cannot enter the casing, after the stator winding is electrified, the rotor rotates, and an axial component force is generated on the rotor to overcome the acting force of the spring to enable the rotor to move rightwards, the valve core on the main shaft is separated from the valve seat on the sleeve, the spiral sheet on the main shaft and the sleeve form a spiral pump, the spiral sheet plays a role in draining when rotating along with the rotor, so that water cannot enter the casing through the sleeve, and the sealing performance between the valve core and the valve seat cannot be reduced due to no friction between the valve core and the valve seat when the main shaft rotates.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The reference numerals respectively denote: 1-casing, 2-stator, 3-rotor, 4-front end housing, 5-rear end housing, 6-main shaft, 7-second bearing, 8-stator winding, 9-spring, 10-baffle ring, 11-sleeve, 12-valve core, 13-spiral slice, 14-first bearing, 15-sealing gasket, 16-jump ring, 17-valve seat.
Detailed Description
Specific embodiments of the present invention will now be described with reference to the accompanying drawings.
A conical rotor motor comprises a shell 1, a stator 2, a stator winding 8 embedded in the stator and a conical rotor 3 arranged in the stator, wherein a front end cover 4 is in sealing connection with the shell from the left side, a rear end cover 5 is in sealing connection with the shell from the right side, the rear end cover can be in welding connection with the shell, the rear end cover can also be integrally formed with the shell, one end of a main shaft 6 in the rotor stretches out of the front end cover in a matched manner, and the other end of the main shaft 6 is inserted in a blind hole of the rear end cover in a matched manner.
In order to reduce friction between the main shaft and the front and rear end caps, a first bearing 14 is arranged between the front end cap and the main shaft, a clamping spring 16 is arranged on the right side of the first bearing, a second bearing 7 is arranged between the rear end cap and the main shaft, and the main shaft can axially move in the first bearing and the second bearing.
The main shaft is sleeved with a spring 9 at a section position between the rotor and the rear end cover, a baffle ring 10 is arranged between the spring and the rear end cover, the baffle ring can also be replaced by a plane bearing (not shown in the drawing), a valve core 12 is arranged at a position of the main shaft extending out of the front end cover, a spiral sheet 13 is arranged at a main shaft position at the left side of the valve core, a sleeve 11 is sleeved on the spiral sheet, the sleeve is in sealing connection with the front end cover, a valve seat 17 extends out of the inner wall of the sleeve, the position of the valve seat corresponds to the valve core, the rotor moves right after the stator winding is electrified, the valve core is separated from the valve seat, and the valve core is attached to the valve seat after the stator winding is powered off. The valve core and the valve seat can be in end face sealing contact or conical surface sealing contact.
Before the stator winding is not electrified, the spring enables the rotor to move left, the valve core is attached to the valve seat, and water cannot enter the shell; after the stator winding is electrified, the rotor rotates, and an axial component force is generated on the rotor to overcome the acting force of the spring to enable the rotor to move rightwards, the valve core on the main shaft is separated from the valve seat on the sleeve, the spiral sheet on the main shaft and the sleeve form a spiral pump structure, the radial dimension of the spiral sheet is matched with the inner diameter dimension of the sleeve, the spiral sheet plays a role in draining water when rotating along with the rotor, therefore, water cannot enter the casing through the sleeve, and the sealing performance between the valve core and the valve seat cannot be reduced due to no friction between the valve core and the valve seat when the main shaft rotates.
At the moment of starting the rotor, water possibly leaks into the machine shell along the gap between the main shaft and the front end cover, so that the axial contact length between the main shaft and the front end cover can be increased, water cannot enter the machine shell as long as the starting speed of the rotor is higher than the water leakage speed, and accumulated water (water film) between the main shaft and the front end cover can be discharged by the spiral sheet after the rotor is started.
As an improvement, taking the valve core as a cone shape as an example, an annular sealing gasket 15 is connected to the left end face of the valve seat, the sealing gasket has flexibility, the sealing gasket can cover the left end face of the valve core, and when the rotor is started, the sealing gasket can be tightly attached to the left end face of the valve core under the action of water pressure to prevent water from leaking to the machine shell.
Claims (3)
1. The utility model provides a toper rotor motor, it includes casing (1), stator (2), locate conical rotor (3) in the stator, front end housing (4) and rear end housing (5) are from left and right sides and casing sealing connection respectively, one end of main shaft (6) in the rotor stretches out from the front end housing, the other end of main shaft is located the rear end housing, be equipped with first bearing (14) between front end housing and main shaft, right side at first bearing is equipped with jump ring (16), be equipped with second bearing (7) between rear end housing and main shaft, the main shaft can do axial displacement in first bearing and second bearing, it has spring (9) to overlap on the section position between main shaft and rotor and rear end housing, characterized by is equipped with case (12) in the main shaft position that stretches out in the front end housing, be equipped with flight (13) in the main shaft position on the left of case, cover has sleeve pipe (11) on the flight, sleeve pipe and front end housing sealing connection, the position of disk seat (17) are corresponding with the case on the inner wall of sleeve, rotor right side after stator winding (8) is circular telegram, the case separates with the disk seat, after stator winding is cut off, the disk seat is closed with the disk seat.
2. The tapered rotor motor as recited in claim 1, wherein the valve element is in tapered contact with the valve seat.
3. A conical rotor motor according to claim 2, characterized in that an annular gasket (15) is connected to the left end face of the valve seat, the gasket being flexible and being capable of covering the left end face of the valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319845.0A CN107070056B (en) | 2017-05-09 | 2017-05-09 | Cone-shaped rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319845.0A CN107070056B (en) | 2017-05-09 | 2017-05-09 | Cone-shaped rotor motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107070056A CN107070056A (en) | 2017-08-18 |
| CN107070056B true CN107070056B (en) | 2023-06-02 |
Family
ID=59596150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710319845.0A Active CN107070056B (en) | 2017-05-09 | 2017-05-09 | Cone-shaped rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107070056B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201341063Y (en) * | 2009-01-05 | 2009-11-04 | 魏秋湘 | Squirrel-cage conical rotor motor |
| CN203784421U (en) * | 2014-04-02 | 2014-08-20 | 西安交通大学 | Flow valve direct-driven by taper permanent magnet synchronous motor |
| CN204068547U (en) * | 2014-08-19 | 2014-12-31 | 河南省三马起重机械有限公司 | To stop in a kind of self-retention manual releasing formula conical rotor machine |
| CN205039657U (en) * | 2015-08-28 | 2016-02-17 | 芜湖环球汽车配件有限公司 | Novel braking of toper rotor area device |
| CN206743017U (en) * | 2017-05-09 | 2017-12-12 | 泰州市姜堰德力电机有限公司 | A kind of conical rotor machine |
-
2017
- 2017-05-09 CN CN201710319845.0A patent/CN107070056B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201341063Y (en) * | 2009-01-05 | 2009-11-04 | 魏秋湘 | Squirrel-cage conical rotor motor |
| CN203784421U (en) * | 2014-04-02 | 2014-08-20 | 西安交通大学 | Flow valve direct-driven by taper permanent magnet synchronous motor |
| CN204068547U (en) * | 2014-08-19 | 2014-12-31 | 河南省三马起重机械有限公司 | To stop in a kind of self-retention manual releasing formula conical rotor machine |
| CN205039657U (en) * | 2015-08-28 | 2016-02-17 | 芜湖环球汽车配件有限公司 | Novel braking of toper rotor area device |
| CN206743017U (en) * | 2017-05-09 | 2017-12-12 | 泰州市姜堰德力电机有限公司 | A kind of conical rotor machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107070056A (en) | 2017-08-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 35 Xingjiang Road, Luotang Street, Jiangyan District, Taizhou City, Jiangsu Province, 225500 Applicant after: Deli Motor Co.,Ltd. Address before: 225500 Xingjiang Road No. 35, modern science and Technology Industrial Park, Jiangyan District, Taizhou, Jiangsu Applicant before: TAIZHOU JIANGYAN DELI ELECTRIC MOTOR CO.,LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A cone-shaped rotor motor Effective date of registration: 20231229 Granted publication date: 20230602 Pledgee: Bank of China Limited Jiangyan Branch Pledgor: Deli Motor Co.,Ltd. Registration number: Y2023980075475 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |