CN110417167A - A kind of electric machine casing of Roots vaccum pump - Google Patents
A kind of electric machine casing of Roots vaccum pump Download PDFInfo
- Publication number
- CN110417167A CN110417167A CN201910714243.4A CN201910714243A CN110417167A CN 110417167 A CN110417167 A CN 110417167A CN 201910714243 A CN201910714243 A CN 201910714243A CN 110417167 A CN110417167 A CN 110417167A
- Authority
- CN
- China
- Prior art keywords
- oil
- base
- electric machine
- hole
- machine casing
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 239000011324 bead Substances 0.000 claims abstract description 24
- 239000003292 glue Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 68
- 239000012208 gear oil Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 4
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 23
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000004577 thatch Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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
- H02K5/10—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
-
- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention provides a kind of electric machine casings of Roots vaccum pump, belong to vacuum pump technology field.The sealing that it is solved between existing thatch vacuum pump oil pocket and motor is poor, and oil liquid leaks into the technical problems such as the external world from motor.The electric machine casing of this Roots vaccum pump includes base, drive end bearing bracket and rear end cap, the front end of shaft is arranged with oil baffle, oil sealing is equipped between drive end bearing bracket and shaft, the inside undergauge in the inner end for the through-hole being arranged on base forms necking part, cable protruded into base through through-hole and the downside of glue bead and the upside of necking part against, one end of long gum cover and glue bead are respectively positioned in through-hole, and the other end of long gum cover is located at the outside of through-hole, are arranged with copper gasket on the upside of glue bead.The present invention is leaked into inside electric machine casing by the oil liquid that the design of oil baffle and oil sealing avoids pumping fluid intracavitary and is then out, and the influence of the leakage and oil liquid of oil liquid to motor internal work is reduced, and improves the stability and safety of motor work.
Description
Technical field
The invention belongs to vacuum pump technology fields, refer in particular to a kind of electric machine casing of Roots vaccum pump.
Background technique
Currently, the effect of Roots vaccum pump be by closed container and closed system air or other gases be discharged and reach
To the purpose of certain vacuum, it is widely used in the industries such as traditional industry, food and light industry.
The running speed of Roots vaccum pump is very high, must be equipped with grease-box at the both ends of pump, so that Roots vaccum pump
Each transmission parts have enough lubrications and cooling in high-speed rotation, before wherein one end of the main shaft of Roots vaccum pump can be pierced by
End cap is connected to motor, and existing Roots vaccum pump only considers the sealing problem of Roots vaccum pump itself, about Roots vaccum pump
Sealing and motor and extraneous sealing between oil pocket and motor did not often account for, and caused the oil liquid in oil pocket by electricity
Casing body leaks into the external world, and perhaps ambient atmos leak into Roots vaccum pump and cause loss or the motor of oil liquid in this way
Failure, while also influence Roots vaccum pump ultimate vacuum even fail, stability and safety are lower.
Summary of the invention
The object of the present invention is to provide a kind of electric machine casings of totally enclosed Roots vaccum pump.
The object of the present invention is achieved like this:
A kind of electric machine casing of Roots vaccum pump, base including tubular and the drive end bearing bracket for being sealingly fastened in base both ends
And rear end cap, shaft by bearing are connect through drive end bearing bracket and base and with the front side of the rear side of drive end bearing bracket and rear end cap, it is special
Sign is: the front end of the shaft is arranged with oil baffle, and annular is provided between the front end and shaft of the drive end bearing bracket
Oil sealing, the inside undergauge in the inner end for the through-hole being arranged on the base form necking part, and cable is successively covered close to the end of through-hole
Equipped with long gum cover and glue bead, the cable protrudes into base through through-hole and the downside of glue bead and the upside of necking part are supported
It leans on, one end of the long gum cover and glue bead are respectively positioned in through-hole, and the other end of the long gum cover is located at the outside of through-hole, described
It is arranged with copper gasket on the upside of glue bead, the clamp nut that copper gasket can be pressed to glue bead is arranged on the cable, it is described
Clamp nut is threadedly coupled with the outer end of through-hole.Above-mentioned cable, long gum cover and glue bead can separate production and then assemble
It direct molding bonded can be assembled in production in one convenient for the later period；This electric machine casing passes through the design of oil baffle and oil sealing
The oil liquid for avoiding pumping fluid intracavitary leaks into inside electric machine casing, avoids influence of the oil liquid to motor internal work, improves
The stability and safety of motor work；Sealed connection and cable interface in conjunction with drive end bearing bracket and rear end cap it is close
Seal structure realizes the comprehensive sealing of entire electric machine casing, and gas, water or oil liquid is avoided to enter in electric machine casing from the external world
Portion, safety and stability is higher, to the more adaptable of harsh environments, to have wider application prospect.
In a kind of electric machine casing of above-mentioned Roots vaccum pump, the outside of the shell is logical equipped with spiral helicine cooling
Road, the outer sheath of the base are equipped with channel housing, the front and rear sides of the channel housing and base sealing welding, the channel
The rear and front end of housing is equipped with the inlet and outlet being connected to cooling duct.Alternatively, above-mentioned cooling duct
It can also be made of the cooling water channel of multiple spaced annulars, and be connected between two neighboring cooling water channel；Cooling duct
Setting motor can be made to have better lowering ability, avoid under all-sealed structure the heat generated inside motor due to work
Amount distributes relatively slow caused electrical fault, is conducive to the stability and safety that improve motor.
In a kind of electric machine casing of above-mentioned Roots vaccum pump, the base is equipped with channel housing and base simultaneously
The perforative connector of side wall, the side wall and base sealing welding of the connector, the through-hole are set on the connector.
In a kind of electric machine casing of above-mentioned Roots vaccum pump, the oil baffle includes substrate, connecting plate and oil baffle,
The substrate is sheathed in shaft and the medial surface of substrate is connect by spaced sealing ring with rotating shaft sealing, the company
Fishplate bar is annular in shape and its inner end and the rear end of substrate connect, and the outer end of connecting plate and the front end of oil baffle connect, the gear oil
The diameter of the lateral surface of plate is gradually increased from front to back.The design of above-mentioned oil baffle lateral surface can will be thrown to oil baffle lateral surface
Oil liquid throw out as far as possible, avoid oil liquid from entering in the gap between oil baffle and drive end bearing bracket, further increase sealing
Effect.
In a kind of electric machine casing of above-mentioned Roots vaccum pump, it is convex that the inner end of the drive end bearing bracket forms forward gear oil
Platform, the front end for keeping off oily boss form cricoid gear oil projecting ring outward, and the medial surface of the oil baffle is equipped with cricoid gear
Oil groove, the gear oil projecting ring are located at the front side of gear oil groove.The design of above-mentioned gear oil projecting ring and gear oil groove can will go into herein
Oil liquid by reducing oil liquid a possibility that entering in the space between substrate and oil sealing, further increase sealing effect.
In a kind of electric machine casing of above-mentioned Roots vaccum pump, the inner end of drive end bearing bracket inwardly forms retention bead,
The front end face of the rear end of the oil sealing and the seal convexity is against the oil sealing is located at the rear side of the oil baffle.
In a kind of electric machine casing of above-mentioned Roots vaccum pump, the drive end bearing bracket and rear end cap pass through O-ring and machine
Seat is tightly connected.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that
The present invention is leaked into inside electric machine casing by the oil liquid that the design of oil baffle and oil sealing avoids pumping fluid intracavitary,
Reduce the influence of the leakage and oil liquid of oil liquid to motor internal work, improves the stability and safety of motor work；
The sealing structure of sealed connection and cable interface in conjunction with drive end bearing bracket and rear end cap realizes the complete of entire electric machine casing
Orientation sealing, avoids gas, water or oil liquid from entering inside electric machine casing from the external world, safety and stability is higher, to evil
Bad working environment it is more adaptable, thus have wider application prospect.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the partial enlarged view in Fig. 1 at A.
Fig. 3 is the partial enlarged view in Fig. 1 at B.
In figure, 1, base；11, connector；111, through-hole；112, necking part；12, clamp nut；13, cooling duct；14,
Channel housing；141, water inlet；142, water outlet；15, O-ring；2, drive end bearing bracket；21, oily boss is kept off；22, oil projecting ring is kept off；23,
Retention bead；3, rear end cap；4, shaft；41, bearing；5, oil baffle；51, substrate；511, sealing ring；52, connecting plate；53, it keeps off
Oiled-plate method；531, oil groove is kept off；6, oil sealing；7, cable；71, long gum cover；72, glue bead；73, copper gasket.
Specific embodiment
With specific embodiment, the invention will be further described with reference to the accompanying drawing, referring to Fig. 1-3:
The electric machine casing of this Roots vaccum pump includes the base 1 of tubular and the drive end bearing bracket 2 for being sealingly fastened in 1 both ends of base
With rear end cap 3, shaft 4 is connected through drive end bearing bracket 2 and base 1 and with the front side of the rear side of drive end bearing bracket 2 and rear end cap 3 by bearing 41
It connects, the front end of the shaft 4 is arranged with oil baffle 5, and annular is provided between the front end and shaft 4 of the drive end bearing bracket 2
Oil sealing 6, the inside undergauge in the inner end for the through-hole 111 being arranged on the base 1 form necking part 112, and cable 7 is close to through-hole 111
End be successively arranged with long gum cover 71 and glue bead 72, the cable 7 protrudes into base 1 through through-hole 111 and glue bead 72
Downside and necking part 112 upside against one end of the long gum cover 71 and glue bead 72 are respectively positioned in through-hole 111, described
The other end of long gum cover 71 is located at the outside of through-hole 111, and the upside of the glue bead 72 is arranged with copper gasket 73, the cable 7
On be arranged with the clamp nut 12 that copper gasket 73 can be pressed to glue bead 72, the outer end of the clamp nut 12 and through-hole 111
It is threadedly coupled；The inner end of drive end bearing bracket 2 inwardly forms retention bead 23, rear end and the seal convexity of the oil sealing 6
Front end face is against the oil sealing 6 is located at the rear side of the oil baffle 5；The drive end bearing bracket 2 and rear end cap 3 by O-ring 15 with
Base 1 is tightly connected.Above-mentioned cable 7, long gum cover 71 and glue bead 72 can separate production and then assemble or in production
Direct molding bonded is assembled in one convenient for the later period；This electric machine casing avoids vacuum pump by the design of oil baffle 5 and oil sealing 6
Oil liquid in oil pocket leaks into inside electric machine casing, improves the stability and safety of motor work；In conjunction with 2 He of drive end bearing bracket
The sealing structure of 7 interface of sealed connection and cable of rear end cap 3 realizes the comprehensive sealing of entire electric machine casing, avoids
Gas, water or oil liquid enter inside electric machine casing from the external world, and safety and stability is higher, fit to harsh environments
Answering property is stronger, to have wider application prospect.
As shown in Figure 1, the outside of the shell is equipped with spiral helicine cooling duct 13, the outer sheath of the base 1 is equipped with
Channel housing 14, the front and rear sides of the channel housing 14 and 1 sealing welding of base, the rear and front end of the channel housing 14 is set
There are the water inlet 141 and water outlet 142 being connected to cooling duct 13；The base 1 is equipped with channel housing 14 and machine simultaneously
The seat perforative connector 11 of 1 side wall, the side wall and 1 sealing welding of base of the connector 11, the through-hole 111 are set to the company
On fitting 11.Alternatively, above-mentioned cooling duct 13 can also be by the cooling water channel structure of multiple spaced annulars
At, and be connected between two neighboring cooling water channel；The setting of cooling duct 13 can make motor have better lowering ability, keep away
Exempt under all-sealed structure inside motor due to the heat that work generates distribute it is relatively slow caused by electrical fault, be conducive to improve electricity
The stability and safety of machine.
As shown in figure 3, the oil baffle 5 includes substrate 51, connecting plate 52 and oil baffle 53, the substrate 51, which is sheathed on, to be turned
On axis 4 and the medial surface of substrate 51 is tightly connected by spaced sealing ring 511 with shaft 4, and the connecting plate 52 is in
Cyclic annular and its inner end is connect with the rear end of substrate 51, and the outer end of connecting plate 52 is connect with the front end of oil baffle 53, the gear oil
The diameter of the lateral surface of plate 53 is gradually increased from front to back；The inner end of the drive end bearing bracket 2 forms forward the oily boss 21 of gear, institute
The front end for stating the oily boss 21 of gear forms cricoid gear oil projecting ring 22 outward, and the medial surface of the oil baffle 53 is equipped with cricoid gear
Oil groove 531, the gear oil projecting ring 22 are located at the front side of gear oil groove 531.The design of above-mentioned 53 lateral surface of oil baffle can will be thrown to
The oil liquid of 53 lateral surface of oil baffle is thrown out as far as possible, and oil liquid is avoided to enter the gap between oil baffle 53 and drive end bearing bracket 2
It is interior, further increase sealing effect；The oil liquid that the design of above-mentioned gear oil projecting ring 22 and gear oil groove 531 can will go into herein is borrowed
It helps, reduces a possibility that oil liquid is entered in the space between substrate 51 and oil sealing 6, further increase sealing effect.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to
The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (7)
1. a kind of electric machine casing of Roots vaccum pump, base including tubular and be sealingly fastened in base both ends drive end bearing bracket and
Rear end cap, shaft is through drive end bearing bracket and base and is connect with the front side of the rear side of drive end bearing bracket and rear end cap by bearing, feature
Be: the front end of the shaft is arranged with oil baffle, and the oil of annular is provided between the front end and shaft of the drive end bearing bracket
It seals, the inside undergauge in the inner end for the through-hole being arranged on the base forms necking part, and cable is successively arranged close to the end of through-hole
Have long gum cover and a glue bead, the cable protruded into base through through-hole and the downside of glue bead and the upside of necking part against,
One end of the long gum cover and glue bead are respectively positioned in through-hole, and the other end of the long gum cover is located at the outside of through-hole, the glue
It is arranged with copper gasket on the upside of pearl, the clamp nut that copper gasket can be pressed to glue bead, the pressure are arranged on the cable
Tight nut is threadedly coupled with the outer end of through-hole.
2. a kind of electric machine casing of Roots vaccum pump according to claim 1, it is characterised in that: set on the outside of the shell
There is spiral helicine cooling duct, the outer sheath of the base is equipped with channel housing, the front and rear sides of the channel housing and base
Sealing welding, the rear and front end of the channel housing are equipped with the inlet and outlet being connected to cooling duct.
3. a kind of electric machine casing of Roots vaccum pump according to claim 2, it is characterised in that: the base is equipped with same
When by channel housing and the perforative connector of base side wall, the side wall and base sealing welding of the connector, the through-hole are set
In on the connector.
4. a kind of electric machine casing of Roots vaccum pump according to claim 1, it is characterised in that: the oil baffle includes base
Plate, connecting plate and oil baffle, the substrate be sheathed in shaft and the medial surface of substrate by spaced sealing ring with
Rotating shaft sealing connection, the connecting plate is annular in shape and its inner end and the rear end of substrate connect, the outer end of connecting plate and oil baffle
Front end connection, the diameter of the lateral surface of the oil baffle is gradually increased from front to back.
5. a kind of electric machine casing of Roots vaccum pump according to claim 4, it is characterised in that: the inner end of the drive end bearing bracket
Portion forms forward the oily boss of gear, and the front end for keeping off oily boss forms cricoid gear oil projecting ring outward, the oil baffle
Medial surface is equipped with cricoid gear oil groove, and the gear oil projecting ring is located at the front side of gear oil groove.
6. a kind of electric machine casing of Roots vaccum pump described in -5 any one according to claim 1, it is characterised in that: drive end bearing bracket
Inner end inwardly form retention bead, the front end face of the rear end of the oil sealing and the seal convexity is against the oil sealing
Positioned at the rear side of the oil baffle.
7. a kind of electric machine casing of Roots vaccum pump described in -5 any one according to claim 1, it is characterised in that: before described
End cap and rear end cap pass through O-ring and base is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910714243.4A CN110417167A (en) | 2019-08-03 | 2019-08-03 | A kind of electric machine casing of Roots vaccum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910714243.4A CN110417167A (en) | 2019-08-03 | 2019-08-03 | A kind of electric machine casing of Roots vaccum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110417167A true CN110417167A (en) | 2019-11-05 |
Family
ID=68365598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910714243.4A Pending CN110417167A (en) | 2019-08-03 | 2019-08-03 | A kind of electric machine casing of Roots vaccum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110417167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116470689A (en) * | 2023-03-27 | 2023-07-21 | 北京通嘉宏瑞科技有限公司 | Integrated shaft type vacuum pump motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008006809A1 (en) * | 2006-07-14 | 2008-01-17 | Oerlikon Leybold Vacuum Gmbh | Vacuum pump with cast drive motor |
| CN202231544U (en) * | 2011-10-13 | 2012-05-23 | 常州杨氏电机有限公司 | Leading-out wire structure of direct current (DC) traction motor |
| CN203098284U (en) * | 2013-01-30 | 2013-07-31 | 浙江神工真空设备制造有限公司 | Roots vacuum pump |
| CN104362795A (en) * | 2014-11-28 | 2015-02-18 | 国茂减速机集团有限公司 | Direct connection type motor |
| WO2016180560A1 (en) * | 2015-05-13 | 2016-11-17 | Robert Bosch Gmbh | Electric machine having advantageous cooling |
| WO2018104719A1 (en) * | 2016-12-08 | 2018-06-14 | Edwards Limited | Vacuum pump with motor and control unit cooling arrangement |
| CN210041512U (en) * | 2019-08-03 | 2020-02-07 | 台州众成真空设备有限公司 | Motor casing of roots vacuum pump |
-
2019
- 2019-08-03 CN CN201910714243.4A patent/CN110417167A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008006809A1 (en) * | 2006-07-14 | 2008-01-17 | Oerlikon Leybold Vacuum Gmbh | Vacuum pump with cast drive motor |
| CN202231544U (en) * | 2011-10-13 | 2012-05-23 | 常州杨氏电机有限公司 | Leading-out wire structure of direct current (DC) traction motor |
| CN203098284U (en) * | 2013-01-30 | 2013-07-31 | 浙江神工真空设备制造有限公司 | Roots vacuum pump |
| CN104362795A (en) * | 2014-11-28 | 2015-02-18 | 国茂减速机集团有限公司 | Direct connection type motor |
| WO2016180560A1 (en) * | 2015-05-13 | 2016-11-17 | Robert Bosch Gmbh | Electric machine having advantageous cooling |
| WO2018104719A1 (en) * | 2016-12-08 | 2018-06-14 | Edwards Limited | Vacuum pump with motor and control unit cooling arrangement |
| CN210041512U (en) * | 2019-08-03 | 2020-02-07 | 台州众成真空设备有限公司 | Motor casing of roots vacuum pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116470689A (en) * | 2023-03-27 | 2023-07-21 | 北京通嘉宏瑞科技有限公司 | Integrated shaft type vacuum pump motor |
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