WO2009109282A1 - Vakuumpumpengehäusedeckel - Google Patents
Vakuumpumpengehäusedeckel Download PDFInfo
- Publication number
- WO2009109282A1 WO2009109282A1 PCT/EP2009/000970 EP2009000970W WO2009109282A1 WO 2009109282 A1 WO2009109282 A1 WO 2009109282A1 EP 2009000970 W EP2009000970 W EP 2009000970W WO 2009109282 A1 WO2009109282 A1 WO 2009109282A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- vacuum pump
- pump housing
- housing cover
- bearing
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2220/00—Application
- F04C2220/10—Vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
Definitions
- the invention relates to a vacuum pump housing cover with a rotor abutment body having a planar contact surface for a rotor having at least one wing, and having a rotor bearing body which is integrally connected to the rotor abutment body and having a rotor bearing portion which serves to support the rotor.
- the invention further relates to a method of manufacturing a vacuum pump housing cover described above.
- the vacuum pump housing cover may be designed as an aluminum die casting, which is subsequently machined.
- the object of the invention is to provide a vacuum pump housing cover with a rotor abutment body having a planar contact surface for a rotor with at least one wing, and with a rotor bearing body which is integrally connected to the rotor abutment body and having a rotor bearing portion, which serves to support the rotor to create that is simple and inexpensive to produce.
- a vacuum pump housing cover with a rotor abutment body, which has a flat contact surface for a rotor with at least one wing, and with a rotor bearing body, which is integrally connected to the rotor abutment body and having a rotor bearing portion, which serves to support the rotor, thereby the rotor bearing body is integrally connected to the rotor abutment body in a forming area and has an opening which is closed by a bearing closure cover which is connected in a material-locking manner to the rotor bearing body.
- the vacuum pump housing cover is reformed, that is, the shape of the vacuum pump housing cover has been selectively changed in the forming area by forming.
- the rotor bearing body is produced by forming, wherein the opening is cut out, in particular punched, is.
- the opening is closed in accordance with a further essential aspect of the invention by the bearing closure lid, which is preferably welded to the rotor bearing body. Costly machining can be completely eliminated.
- a preferred embodiment of the vacuum pump housing cover is characterized in that the vacuum pump housing cover is finely stamped with the rotor body and the rotor bearing body. In fine blanking, the vacuum pump housing cover is punched or formed in only one press stroke with very high accuracy and with minimal tolerances. By fine blanking, smooth, rectangular cutting edges can be achieved over the entire workpiece thickness in just one operation. The use of separation or forming technology fine blanking allows the production of the rotor bearing portion with a reshaped bearing seat with a high accuracy in a simple manner.
- a further preferred embodiment of the vacuum pump housing cover is characterized in that the bearing closure cover is connected by a laser welding connection cohesively with the rotor bearing body.
- the use of the connection technology laser welding or laser beam welding makes it possible in a simple way to produce a stable and tight cohesive connection with low distortion and with a narrow and slim weld form. Through the use of laser welding, it is possible to produce the formed part so that the flatness of the contact surface has a very high accuracy.
- vacuum pump housing cover is characterized in that the vacuum pump housing cover and / or the bearing closure cover is / are made of an aluminum sheet material. Preferably, both lids are formed of the same material.
- the vacuum pump housing cover is characterized in that the aluminum sheet material is formed of an aluminum alloy containing proportions of silicon.
- the material according to the invention comes very close to the material of an aluminum die cast alloy, but has the advantage that it is still weldable.
- a further preferred exemplary embodiment of the vacuum pump housing cover is characterized in that the vacuum pump housing cover and / or the bearing closure cover are designed to be tool-dropping or finished. This has the advantage that the two covers are directly installed without any further post-processing. can be mounted. Since the following joining process can be automated, the total manufacturing costs are significantly lower than those of an aluminum die-cast part.
- a further preferred embodiment of the vacuum pump housing cover is characterized in that the bearing closure cover has the shape of a circular disk, which is integrally connected to the rotor bearing body at its periphery. This shape is by fine blanking easy, especially tool falling or fertig fallend feasible.
- a further preferred embodiment of the vacuum pump housing cover is characterized in that the rotor bearing portion has the shape of a straight circular cylinder jacket with a longitudinal axis which is arranged perpendicular to the contact surface for the rotor.
- the rotor bearing portion may also be referred to as a bearing sleeve, which is integrally formed on the Vakuumpumpengephaseusedeckel.
- the rotor bearing portion preferably forms a rotor abutment, which is an additional bearing in a two-sided mounting of the rotor.
- the above object is achieved by the following steps:
- the bearing cap and the vacuum pump casing lid with the rotor body and the rotor bearing body with the opening are formed by fine blanking of an aluminum sheet material.
- the fine blanking is preferably carried out on a fine blanking press.
- the bearing cap is connected by laser welding material fit with the rotor bearing body.
- a laser welding system using inert gas is preferably used.
- Figure 1 shows a vane pump with a vacuum pump housing cover according to the invention in plan view
- FIG. 2 shows the view of a section along the line M-II of Figure 1. - A -
- FIGS. 1 and 2 a vacuum pump 1 designed as a vane-cell pump with a housing 2 is shown in different views.
- the housing 2 comprises a housing pot 3, which is closed by a vacuum pump housing cover 4.
- a rotor 5 is rotatably mounted, which has an axial wing receiving slot for a wing 6.
- the wing 6 is guided by the rotor 5 within a stroke contour 8 movable back and forth.
- the rotor 5 is preferably rotatably mounted in the housing pot 3 at its end shown in FIG.
- the rotor 5 has a bearing journal 10 which is mounted in a rotor bearing body 12, which is integrally connected to a rotor abutment body 11 of the vacuum pump housing cover 4.
- the rotor body 11 has on the inside a flat contact surface 13 which limits a working space in the housing 2 in the axial direction. At the contact surface 13 of the rotor 5 are located with one of its end faces and the wing 6 in the axial direction.
- the rotor bearing body 12 includes a rotor bearing portion 20, which is also referred to as a bearing sleeve and has the shape of a right circular cylinder.
- the rotor bearing portion 20 includes a circular opening 22 which is closed by a bearing closure cover 24.
- the bearing closure cover 24 has the shape of a circular disk.
- the vacuum pump housing cover Due to the design of the vacuum pump housing cover according to the invention, a tool-dropping or finished production of aluminum sheet is made possible without additional operations. Falling or falling tool means that the vacuum pump housing cover falls after the fine blanking from the tool without having to be reworked. According to an essential aspect of the invention, the separation and / or forming technique fine blanking in conjunction with the laser welding connection technique is used to create and close a reshaped bearing seat. In the context of the present invention, the use of silicon-alloyed aluminum has proved to be particularly advantageous. LIST OF REFERENCES
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009000258T DE112009000258A5 (de) | 2008-03-01 | 2009-02-12 | Vakuumpumpengehäusedeckel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008013711 | 2008-03-01 | ||
DE102008013711.1 | 2008-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009109282A1 true WO2009109282A1 (de) | 2009-09-11 |
Family
ID=40791175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/000970 WO2009109282A1 (de) | 2008-03-01 | 2009-02-12 | Vakuumpumpengehäusedeckel |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112009000258A5 (de) |
WO (1) | WO2009109282A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016042460A1 (en) * | 2014-09-15 | 2016-03-24 | Vhit S.P.A. | Rotary pump |
DE102014224197A1 (de) | 2014-11-26 | 2016-06-02 | Magna Powertrain Bad Homburg GmbH | Vakuumpumpengehäuseanordnung und Verfahren zu deren Herstellung |
WO2017145669A1 (ja) * | 2016-02-25 | 2017-08-31 | 大豊工業株式会社 | ポンプの端板の製造方法およびポンプ |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3826326A1 (de) * | 1987-08-08 | 1989-02-23 | Barmag Barmer Maschf | Fluegelzellenvakuumpumpe |
JPH09144678A (ja) * | 1995-11-24 | 1997-06-03 | Aisan Ind Co Ltd | べーン式バキュームポンプ |
EP0933532A2 (de) * | 1998-02-02 | 1999-08-04 | Asuka Japan Co., Ltd. | Drehkolbenflügelzellenmaschine |
WO2004109111A1 (de) * | 2003-05-26 | 2004-12-16 | Luk Automobiltechnik Gmbh & Co. Kg | Flügelzellenpumpe mit tiefgezogenem stahlblechtopf |
FR2869958A1 (fr) * | 2004-05-07 | 2005-11-11 | Peugeot Citroen Automobiles Sa | Pompe a vide a palette(s) perfectionnee |
-
2009
- 2009-02-12 WO PCT/EP2009/000970 patent/WO2009109282A1/de active Application Filing
- 2009-02-12 DE DE112009000258T patent/DE112009000258A5/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3826326A1 (de) * | 1987-08-08 | 1989-02-23 | Barmag Barmer Maschf | Fluegelzellenvakuumpumpe |
JPH09144678A (ja) * | 1995-11-24 | 1997-06-03 | Aisan Ind Co Ltd | べーン式バキュームポンプ |
EP0933532A2 (de) * | 1998-02-02 | 1999-08-04 | Asuka Japan Co., Ltd. | Drehkolbenflügelzellenmaschine |
WO2004109111A1 (de) * | 2003-05-26 | 2004-12-16 | Luk Automobiltechnik Gmbh & Co. Kg | Flügelzellenpumpe mit tiefgezogenem stahlblechtopf |
FR2869958A1 (fr) * | 2004-05-07 | 2005-11-11 | Peugeot Citroen Automobiles Sa | Pompe a vide a palette(s) perfectionnee |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016042460A1 (en) * | 2014-09-15 | 2016-03-24 | Vhit S.P.A. | Rotary pump |
DE102014224197A1 (de) | 2014-11-26 | 2016-06-02 | Magna Powertrain Bad Homburg GmbH | Vakuumpumpengehäuseanordnung und Verfahren zu deren Herstellung |
WO2017145669A1 (ja) * | 2016-02-25 | 2017-08-31 | 大豊工業株式会社 | ポンプの端板の製造方法およびポンプ |
JPWO2017145669A1 (ja) * | 2016-02-25 | 2018-08-09 | 大豊工業株式会社 | ポンプの端板の製造方法およびポンプ |
CN108700073A (zh) * | 2016-02-25 | 2018-10-23 | 大丰工业株式会社 | 泵的端板的制造方法及泵 |
EP3421801A4 (de) * | 2016-02-25 | 2019-03-13 | Taiho Kogyo Co., Ltd. | Verfahren zur herstellung der endplatte einer pumpe und pumpe |
CN108700073B (zh) * | 2016-02-25 | 2019-08-27 | 大丰工业株式会社 | 泵的端板的制造方法及泵 |
US11255330B2 (en) | 2016-02-25 | 2022-02-22 | Taiho Kogyo Co., Ltd. | Pump end plate manufacturing method and pump |
Also Published As
Publication number | Publication date |
---|---|
DE112009000258A5 (de) | 2011-04-14 |
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