CN106787381A - Vortex dry pump electric drive sealing structure - Google Patents
Vortex dry pump electric drive sealing structure Download PDFInfo
- Publication number
- CN106787381A CN106787381A CN201510818931.7A CN201510818931A CN106787381A CN 106787381 A CN106787381 A CN 106787381A CN 201510818931 A CN201510818931 A CN 201510818931A CN 106787381 A CN106787381 A CN 106787381A
- Authority
- CN
- China
- Prior art keywords
- housing
- machine casing
- electric machine
- end cap
- dry pump
- 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.)
- Granted
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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
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to vacuum dry pump field,Specifically a kind of two ends are using the vortex dry pump electric drive sealing structure of sealing ring sealing,Including electric machine casing,Electric motor end cap,Stator winding,Rotor windings,Motor shaft and housing,The stator winding is packed in the electric machine casing by interference fit,The housing is packed in the stator winding by interference fit,Electric machine casing one end closing,The other end is openend,The motor shaft is by vacuum chamber through in stretching to the housing after the blind end of the electric machine casing,Rotor windings are arranged on the motor shaft,Electric motor end cap is arranged on the openend of the electric machine casing,The two ends of the housing offset with the blind end and the electric motor end cap of the electric machine casing respectively,And it is equipped with sealing ring between the housing and the blind end of electric machine casing and between the housing and electric motor end cap.Effectively sealing and convenient disassembly of the invention.
Description
Technical field
The present invention relates to vacuum dry pump field, specifically a kind of two ends are close using sealing ring
The vortex dry pump electric drive sealing structure of envelope.
Background technology
Vortex dry pump is susceptible to leakage problem, prior art when pumping poisonous and harmful process gas
The sealing structure of middle use stator can is by vortex dry pump internal vacuum chamber and ambient atmos
Stator can one end and motor are used completely isolated but traditional electric drive static seal more
There is welding in the mounting structure that case weld, one end are sealed using sealing ring, this kind of installation form
The defects such as complex process, concentricity are poor, be more expensive to manufacture, maintenance difficult.
The content of the invention
It is an object of the invention to provide a kind of vortex dry pump electric drive sealing structure, housing leads to
Interference fit is crossed to fix and the two ends sealing of use sealing ring, effectively sealing and convenient disassembly.
The purpose of the present invention is achieved through the following technical solutions：
A kind of vortex dry pump electric drive sealing structure, including electric machine casing, electric motor end cap, stator
Winding, rotor windings, motor shaft and housing, the stator winding are fixedly mounted with by interference fit
In the electric machine casing, the housing is packed in the stator winding by interference fit
In, electric machine casing one end closing, the other end is openend, and the motor shaft is by vacuum chamber
Through in stretching to the housing after the blind end of the electric machine casing, rotor windings are set for room
In housing and on the motor shaft, electric motor end cap is arranged on the electric machine casing
Openend, the two ends of the housing respectively with the blind end and the motor of the electric machine casing
End cap offsets, and between the housing and the blind end of electric machine casing and the housing with
Sealing ring is equipped between electric motor end cap.
One end of the housing is provided with top cover of the middle part with through hole, and the other end is provided with flange, institute
State top cover to be offseted with the blind end of the electric machine casing, the flange and the electric motor end cap phase
Support.
The blind end inner side of the electric machine casing is provided with housing boss, the top cover of the housing with
The housing boss is offseted, and the first sealing is provided between the top cover and the housing boss
Circle.
The seal groove for housing first sealing ring is opened on the housing boss.
The electric motor end cap inner side is provided with end cap boss, the flange of the housing and the end cap
Boss is offseted, and the second sealing ring is provided between the flange and the end cap boss.
The seal groove for housing second sealing ring is opened on the end cap boss
The sidewall thickness L of the housing is 0.3~0.5mm.
The housing is made of non-magnet_conductible material.
Advantages of the present invention is with good effect：
1st, by interference fit be fixed on stator winding housing by the present invention, and two
End is sealed using sealing ring, effectively sealing and convenient disassembly.
2nd, simple and practical, low cost of manufacture of the invention.
Brief description of the drawings
Fig. 1 is structural representation of the invention,
Fig. 2 is the shield cover structure schematic diagram in Fig. 1.
Wherein, 1 is electric machine casing, and 2 is electric motor end cap, and 3 is stator winding, 4 be rotor around
Group, 5 is housing, and 51 is top cover, and 52 is flange, and 6 is motor shaft, and 7 is the first sealing
Circle, 8 is the second sealing ring, and 9 is vacuum chamber, and 10 is housing inner chamber, and 11 is housing
Exocoel 11,13 is through hole, and 14 is housing boss, and 15 is end cap boss.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention is arranged in vacuum pump body, the present invention include electric machine casing 1,
Electric motor end cap 2, stator winding 3, rotor windings 4, motor shaft 6 and housing 5, it is described fixed
Sub- winding 3, rotor windings 4 and housing 5 may be contained within the electric machine casing 1, wherein
The stator winding 3 is packed in the electric machine casing 1 by interference fit, the housing
5 are packed in the stator winding 3 by interference fit, the closing of the one end of the electric machine casing 1,
The other end is openend, is provided with the blind end of the electric machine casing 1 and is worn for the motor shaft 6
The through hole 13 crossed, the motor shaft 6 is passed through the envelope of the electric machine casing 1 by vacuum chamber 9
In stretching to the housing 5 after closed end, rotor windings 4 be arranged on the motor shaft 6 and
With housing 5 for gap coordinates, electric motor end cap 2 is arranged on the motor to the rotor windings 4
The openend of housing 1, the two ends of the housing 5 respectively with the closing of the electric machine casing 1
End and the electric motor end cap 2 offset, and the housing 5 and electric machine casing 1 blind end it
Between and the housing 5 and electric motor end cap 2 between be equipped with sealing ring, by this kind of structure
Make to be arranged at housing inner chamber 10 inside housing 5 and be arranged at housing 5 and motor casing
Housing exocoel 11 between body 1 is kept completely separate, and makes the vacuum chamber 9 in vavuum pump
One totally enclosed vacuum chamber of formation is connected with the housing inner chamber 10.
As shown in Fig. 2 one end of the housing 5 is provided with top cover 51 of the middle part with through hole,
The other end is provided with flange 52, as shown in figure 1, on the inside of the blind end of the electric machine casing 1
It is provided with a housing boss 14, the top cover 51 of the housing 5 and the phase of housing boss 14
Support, the first sealing ring 7 is provided between the top cover 51 and the housing boss 14, and hold
The seal groove for putting first sealing ring 7 is opened on the housing boss 14, the motor side
The inner side of lid 2 is provided with an end cap boss 15, and the flange 52 of the housing 5 is convex with the end cap
Platform 15 is offseted, and the second sealing ring 8 is provided between the flange 52 and the end cap boss 15,
And the seal groove of accommodating second sealing ring 8 is opened on the end cap boss 15.
As shown in Fig. 2 the sidewall thickness L of the housing 5 is 0.3~0.5mm, it is described
Housing 5 is made of non-magnet_conductible material, and in the present embodiment, the material of the housing 5 is
1Cr18Ni9Ti。
Operation principle of the invention is：
By interference fit be fixed on stator winding 3 housing 5 by the present invention, housing 5
Two ends are sealed by sealing ring so that housing inner chamber 10 is divided completely with housing exocoel 11
From, and make the vacuum chamber 9 in vavuum pump that the full envelope of formation one is connected with housing inner chamber 10
The vacuum chamber for closing.
Claims (8)
1. a kind of vortex dry pump electric drive sealing structure, it is characterised in that：Including electric machine casing
(1), electric motor end cap (2), stator winding (3), rotor windings (4), motor shaft (6)
With housing (5), the stator winding (3) is packed in the motor casing by interference fit
In body (1), the housing (5) is packed in the stator winding (3) by interference fit
In, electric machine casing (1) one end closing, the other end is openend, the motor shaft (6)
By vacuum chamber (9) through stretching to the shielding after the blind end of the electric machine casing (1)
In set (5), rotor windings (4) are arranged in housing (5) and are arranged on the motor
On axle (6), electric motor end cap (2) is installed in the openend of the electric machine casing (1), institute
State the two ends of housing (5) respectively with the blind end and the motor of the electric machine casing (1)
End cap (2) offsets, and between the blind end of the housing (5) and electric machine casing (1)
And it is equipped with sealing ring between the housing (5) and electric motor end cap (2).
2. vortex dry pump electric drive sealing structure according to claim 1, its feature exists
In：One end of the housing (5) is provided with top cover (51) of the middle part with through hole, and the other end sets
There is flange (52), the top cover (51) offsets with the blind end of the electric machine casing (1),
The flange (52) offsets with the electric motor end cap (2).
3. vortex dry pump electric drive sealing structure according to claim 2, its feature exists
In：The blind end inner side of the electric machine casing (1) is provided with housing boss (14), the shielding
The top cover (51) for covering (5) offsets with the housing boss (14), in the top cover (51)
The first sealing ring (7) is provided with and the housing boss (14) between.
4. vortex dry pump electric drive sealing structure according to claim 3, its feature exists
In：The seal groove for housing first sealing ring (7) is opened on the housing boss (14).
5. vortex dry pump electric drive sealing structure according to claim 2, its feature exists
In：Electric motor end cap (2) inner side is provided with end cap boss (15), the housing (5)
Flange (52) offseted with the end cap boss (15), the flange (52) and the end
The second sealing ring (8) is provided between lid boss (15).
6. vortex dry pump electric drive sealing structure according to claim 5, its feature exists
In：The seal groove for housing second sealing ring (8) is opened on the end cap boss (15)
7. vortex dry pump electric drive sealing structure according to claim 1, its feature exists
In：The sidewall thickness L of the housing (5) is 0.3~0.5mm.
8. vortex dry pump electric drive sealing structure according to claim 1, its feature exists
In：The housing (5) is made of non-magnet_conductible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510818931.7A CN106787381B (en) | 2015-11-23 | 2015-11-23 | Vortex dry pump electric drive sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510818931.7A CN106787381B (en) | 2015-11-23 | 2015-11-23 | Vortex dry pump electric drive sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106787381A true CN106787381A (en) | 2017-05-31 |
| CN106787381B CN106787381B (en) | 2019-03-19 |
Family
ID=58963027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510818931.7A Active CN106787381B (en) | 2015-11-23 | 2015-11-23 | Vortex dry pump electric drive sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106787381B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649743A (en) * | 2018-06-22 | 2018-10-12 | 甄红 | Large torque energy-saving motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348522Y (en) * | 1998-07-31 | 1999-11-10 | 李精生 | Electric machine for sealed stator winding submersible pump |
| CN1889333A (en) * | 2005-06-29 | 2007-01-03 | 中国科学院电工研究所 | Electric machine for evaporative cooling underwater equipment |
| CN201041962Y (en) * | 2007-05-09 | 2008-03-26 | 汉钟精机股份有限公司 | Canned motor with improved sealing structure |
-
2015
- 2015-11-23 CN CN201510818931.7A patent/CN106787381B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348522Y (en) * | 1998-07-31 | 1999-11-10 | 李精生 | Electric machine for sealed stator winding submersible pump |
| CN1889333A (en) * | 2005-06-29 | 2007-01-03 | 中国科学院电工研究所 | Electric machine for evaporative cooling underwater equipment |
| CN201041962Y (en) * | 2007-05-09 | 2008-03-26 | 汉钟精机股份有限公司 | Canned motor with improved sealing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649743A (en) * | 2018-06-22 | 2018-10-12 | 甄红 | Large torque energy-saving motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106787381B (en) | 2019-03-19 |
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