EP1026399A1 - Vis transporteuses jumelées - Google Patents

Vis transporteuses jumelées Download PDF

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Publication number
EP1026399A1
EP1026399A1 EP99810101A EP99810101A EP1026399A1 EP 1026399 A1 EP1026399 A1 EP 1026399A1 EP 99810101 A EP99810101 A EP 99810101A EP 99810101 A EP99810101 A EP 99810101A EP 1026399 A1 EP1026399 A1 EP 1026399A1
Authority
EP
European Patent Office
Prior art keywords
flank
conveyor screws
screws according
twin
twin conveyor
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.)
Withdrawn
Application number
EP99810101A
Other languages
German (de)
English (en)
Inventor
Ulrich Becher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ateliers Busch SA
Original Assignee
Ateliers Busch SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ateliers Busch SA filed Critical Ateliers Busch SA
Priority to EP99810101A priority Critical patent/EP1026399A1/fr
Priority to EP99973677A priority patent/EP1151199A1/fr
Priority to CA002362075A priority patent/CA2362075A1/fr
Priority to AU13714/00A priority patent/AU1371400A/en
Priority to JP2000598773A priority patent/JP2002536593A/ja
Priority to PCT/CH1999/000587 priority patent/WO2000047897A1/fr
Priority to CN99816093.8A priority patent/CN1334904A/zh
Publication of EP1026399A1 publication Critical patent/EP1026399A1/fr
Withdrawn legal-status Critical Current

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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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels

Definitions

  • the invention relates to twin conveyor screws for installation in displacement machines, especially pumps, for axially parallel, counter-rotating External intervention with wrap angles> 720 ° and carried out with the same End profiles each with a cycloid-shaped hollow flank, which in one Housing a well-sealed axial chamber sequence without blow hole connections form.
  • each screw has several each, axially one behind the other on a common shaft arranged screw body.
  • the documents JP 63-36086 and DE 195 22 559 A1 also show Screw pairs of this first type, but here the one after the other arranged screw body have different pitches. Thereby the area of compression is axially stretched, which means the heat exchange surface the housing is enlarged, which improves the external cooling leads.
  • the two are in the screw pump according to DE 196 14 562 A1 mentioned features, namely different turns and different Gradients of the one behind the other on a shaft Screw body united.
  • a second type of twin screw is the Multi-start screws and the profiles are point-symmetrical.
  • These include in particular named after the company "Svenska Rotor Maskiner Aktiebolag” SRM profiles in which the two rotors have an uneven number of teeth and where one of the rotors as “male” and the other as “female” referred to as.
  • Svenska Rotor Maskiner Aktiebolag SRM profiles in which the two rotors have an uneven number of teeth and where one of the rotors as “male” and the other as “female” referred to as.
  • There are no unbalance problems with these best-known profiles because they are point symmetric. This affects both that as “symmetrical” designated profile with mirror-image tooth flanks as well as the "asymmetrical” designated with different tooth flanks.
  • the patent applications DE 195 22 559 A1 and DE 195 22 560 A1 describe twin screws with a double-start rectangular profile.
  • the pump concept realized with these feed screws is the most advanced and most flexible concept at the moment.
  • the two-course rectangular profile allows high speeds without bending vibrations and operates without a front end cover.
  • precisely because of this rectangular profile the formation of sufficiently well partitioned, axial chamber sequences with little leakage is only achieved at low gradients and large wrap angles in combination with high speed (8000 min -1 ), i.e. operation in the low and medium speed range results in poor Ultimate vacuum and poor efficiency.
  • the pump is cooled conventionally on the stationary part using coolant.
  • the rotors are cooled according to the principle of thermal radiation in the area of pressure-side coaxial bores. This rotor geometry offers no space for an effective internal cooling system with flowing cooling medium.
  • a known pump with rotors of this type is manufactured by Kashiyama and has single-sided rotors with a catchy rectangular profile on. Regarding geometry, speed, leakage, final vacuum and efficiency The same problems occur with this pump as in the context above with the two-course rectangular profile of the documents DE 195 22 559 A1 and DE 195 22 560 A1. The additional problem of Balancing is achieved through recesses in the core area.
  • the output control does not necessarily take place via a front cover; the screws themselves can do this alone.
  • the balancing method is important when realizing such catchy screws. Static and dynamic balancing is achieved by forming end-face and / or internal cavities, cutting away outer, insignificant screw parts, using materials of different densities and varying the wrap angle. Documents representing the prior art with regard to such methods are JP 62 291 486, WO 97/21925, JP 0 230 5393 and WO 98/11351.
  • the present invention has for its object to provide a set of conveyor screws that is suitable for problem-free operation in a wide speed range (approx. 1,000-8,000 min -1 ) and with which a good vacuum even at low speeds and a vibration-free operation up to the upper range.
  • the delivery screws should enable the installation of effective internal rotor cooling, which is becoming increasingly important, particularly for larger pumps (> 200 m 3 / h).
  • the twin conveyor screws according to the invention are used to achieve the object characterized in that the forehead profile has multiple threads but not point symmetrical is that exactly one flank of a single tooth is designed as a cycloid-shaped hollow flank and that all others Flanks are essentially convexly curved and that by appropriate Formation of the individual face profile limitation curves Center of gravity and pivot point exists.
  • helical channels are provided through which a Coolant flows.
  • FIG. 1 schematically shows a cross section through one indicated by 3 Housing in which a first embodiment of the invention Twin screws 1 and 2 are located.
  • the view according to Figure 1 is cut along the line I - I in Figure 3, but the in Figure 3 with 11 designated channel is not shown.
  • Each of the illustrated Screws have a uniform, coherent screw body and is preferably for a dry-running pump with an externally arranged Determined synchronization device.
  • the profile of the screws is out the following limitation curves:
  • a single hollow flank 6 goes at its radially outer end over an edge 7 in a head arc K over.
  • the cycloid-shaped hollow flank 6 goes at its radially inner end tangentially into a circular arc F over.
  • FIG. 2 shows a second embodiment of the inventive Twin conveyor screws that keep the above Condition, namely the correspondence between profile focus and Pivot point, the radii rK1, rK2 of the two arcs bK1 and bK2 each
  • the feed screw does not have to be the same as in FIG. 1.
  • rK1 greater than rK2 so that between the convex flanks 8 and 9 adjacent arc K and the housing inner wall a clear Gap exists.
  • this gap has for the isolation of the work cells minimal importance, because this takes place at the edge 7 and the one adjacent to it Head arc.
  • the different root circle radii rF1, rF2 result necessarily from the center distance and the tip radius radii rK1, rK2.
  • the surfaces forming the work area the housing 3 and the rotors 1, 2 enlarged, which in combination with the Internal rotor cooling is advantageous.
  • FIG. 3 shows the twin conveyor screw set according to FIG. 1 in a partially sectioned view in the direction of arrow III in Figure 1.
  • Die two-speed rotors are mirror images and stand together in engagement.
  • a helical channel 11 is formed in its interior, through which a cooling medium flows during operation.
  • Each rotor is made in one piece. Instead, of course, each rotor could also consist of a rotor shaft 4 and a screw body 5 composed of the same or different materials. Because of the In this case, favorable face profile geometry can also make materials of less Strength can be used. Also non-castable special materials can be used if the internal rotor cooling is not used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
EP99810101A 1999-02-08 1999-02-08 Vis transporteuses jumelées Withdrawn EP1026399A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP99810101A EP1026399A1 (fr) 1999-02-08 1999-02-08 Vis transporteuses jumelées
EP99973677A EP1151199A1 (fr) 1999-02-08 1999-12-07 Vis sans fin jumelles destinees a etre installees dans des machines de deplacement, en particulier des pompes
CA002362075A CA2362075A1 (fr) 1999-02-08 1999-12-07 Vis sans fin jumelles destinees a etre installees dans des machines de deplacement, en particulier des pompes
AU13714/00A AU1371400A (en) 1999-02-08 1999-12-07 Twin delivery screws provided for installation in positive-displacement machines, especially pumps
JP2000598773A JP2002536593A (ja) 1999-02-08 1999-12-07 容積形機械、特にポンプに搭載される複式送出しスクリュー
PCT/CH1999/000587 WO2000047897A1 (fr) 1999-02-08 1999-12-07 Vis sans fin jumelles destinees a etre installees dans des machines de deplacement, en particulier des pompes
CN99816093.8A CN1334904A (zh) 1999-02-08 1999-12-07 用于安装在压排机尤其是泵中的双输送螺纹

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99810101A EP1026399A1 (fr) 1999-02-08 1999-02-08 Vis transporteuses jumelées

Publications (1)

Publication Number Publication Date
EP1026399A1 true EP1026399A1 (fr) 2000-08-09

Family

ID=8242666

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99810101A Withdrawn EP1026399A1 (fr) 1999-02-08 1999-02-08 Vis transporteuses jumelées
EP99973677A Withdrawn EP1151199A1 (fr) 1999-02-08 1999-12-07 Vis sans fin jumelles destinees a etre installees dans des machines de deplacement, en particulier des pompes

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99973677A Withdrawn EP1151199A1 (fr) 1999-02-08 1999-12-07 Vis sans fin jumelles destinees a etre installees dans des machines de deplacement, en particulier des pompes

Country Status (6)

Country Link
EP (2) EP1026399A1 (fr)
JP (1) JP2002536593A (fr)
CN (1) CN1334904A (fr)
AU (1) AU1371400A (fr)
CA (1) CA2362075A1 (fr)
WO (1) WO2000047897A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10300203A1 (de) * 2003-01-08 2004-07-22 Pfeiffer Vacuum Gmbh Zweiwellenvakuumpumpe sowie Verfahren zur Herstellung einer Zweiwellenvakuumpumpe
CN102678542A (zh) * 2011-03-11 2012-09-19 株式会社丰田自动织机 螺杆泵
DE102011118050A1 (de) 2011-11-05 2013-05-08 Ralf Steffens Spindelverdichter-Profilkontur
US9683569B2 (en) 2015-08-27 2017-06-20 Ingersoll-Rand Company Compressor system having rotor with distributed coolant conduits and method
US10495090B2 (en) 2015-08-27 2019-12-03 Ingersoll-Rand Company Rotor for a compressor system having internal coolant manifold
CN111779676A (zh) * 2020-07-15 2020-10-16 西安交通大学 一种双齿转子压缩机转子型线及双齿转子和压缩机

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH694339A9 (de) 2000-07-25 2005-03-15 Busch Sa Atel Zwillingsschraubenrotoren und solche enthaltende Ve rdraengermaschinen.
KR101176980B1 (ko) * 2005-02-16 2012-08-24 아뜰리에 부쉬 에스.아. 비대칭 형상을 가지는 회전자들을 구비한 체적형 회전 장치
CN1904365B (zh) * 2005-07-29 2010-06-16 良峰塑胶机械股份有限公司 爪式转子设计方法
JP5353521B2 (ja) * 2009-07-22 2013-11-27 株式会社豊田自動織機 スクリューロータ
CN103452846B (zh) * 2013-10-08 2016-08-03 李锦上 塞杆压缩机
CN107882735B (zh) * 2017-11-02 2019-05-24 西安交通大学 一种具有严格密封型转子线的双齿双螺杆真空泵
JP7096044B2 (ja) * 2018-03-30 2022-07-05 株式会社日立産機システム スクリューロータ及び流体機械本体
CN111396311A (zh) * 2020-04-26 2020-07-10 陕西理工大学 一种空心螺杆转子及其加工方法
CN111828327B (zh) * 2020-07-15 2021-11-30 高秀峰 一种多齿转子压缩机转子型线及多齿转子和压缩机

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB112104A (en) 1917-07-05 1917-12-27 Edward Nuebling Improvements in or relating to Rotary Meters, Pumps and Motors.
GB527339A (en) * 1939-04-06 1940-10-07 Paul Leistritz Improvements in screw pumps or screw motors
US2441771A (en) 1941-05-31 1948-05-18 Jarvis C Marble Yieldable drive for rotors
GB670395A (en) 1950-01-16 1952-04-16 Roots Connersville Blower Corp Improvements in or relating to rotary screw-pumps and motors
DE914886C (de) 1949-09-15 1954-07-12 Svenska Rotor Maskiner Ab Kuehleinrichtung fuer mehrteilige Gehaeuse oder Laeufer, insbesondere von Drehkolbenmaschinen mit Schraubenraedern
US2714314A (en) 1951-05-15 1955-08-02 Howden James & Co Ltd Rotors for rotary gas compressors and motors
GB746628A (en) 1953-04-06 1956-03-14 Dresser Ind Improvements in pumps or motors of the meshing screw type
DE1289433B (de) * 1960-07-08 1969-02-13 Prinz Fritz Schraubenrotor fuer Schraubenpumpen od. dgl. mit hohlen Schraubengaengen
US4224016A (en) 1978-09-27 1980-09-23 Brown Arthur E Rotary positive displacement machines
JPS62291486A (ja) 1986-06-12 1987-12-18 Taiko Kikai Kogyo Kk スクリユ−コンプレツサ−
JPS6336086A (ja) 1986-07-30 1988-02-16 Taiko Kikai Kogyo Kk 多段型スクリユウ式真空ポンプ
JPH02305393A (ja) 1989-05-19 1990-12-18 Hitachi Ltd スクリユーロータおよびスクリユー真空ポンプ
EP0496170A2 (fr) 1990-12-24 1992-07-29 James River Corporation Of Virginia Pompes à déplacement positif
DE4224969C1 (de) 1992-07-29 1993-09-30 Heinrich Moeller Förderschraubenpaar für rotierende Verdrängerpumpen
DE4316735A1 (de) 1993-05-19 1994-11-24 Bornemann J H Gmbh & Co Pumpverfahren zum Betreiben einer Multiphasen-Schraubenspindelpumpe und Pumpe
EP0736667A2 (fr) * 1995-04-05 1996-10-09 Ebara Corporation Rotor à vis et procédé de génération du profil de ses dents
DE19614562A1 (de) 1995-04-13 1996-10-17 Ingersoll Dresser Pump Co Schraubenpumpe
DE19522559A1 (de) 1995-06-21 1997-01-02 Sihi Ind Consult Gmbh Verdichter mit axialer Förderrichtung, insbesondere in Schraubenspindel-Bauweise
DE19522560A1 (de) 1995-06-21 1997-01-02 Sihi Ind Consult Gmbh Vakuumpumpe mit einem Paar innerhalb eines axial durchströmten Schöpfraums umlaufender Verdrängerrotoren
WO1997021925A1 (fr) 1995-12-11 1997-06-19 Ateliers Busch S.A. Systeme a vis jumelees
WO1997021926A1 (fr) 1995-12-11 1997-06-19 Ateliers Busch S.A. Vis transporteuses jumelees
WO1998011351A1 (fr) 1996-09-12 1998-03-19 Ateliers Busch S.A. Jeu de rotors filetes

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB112104A (en) 1917-07-05 1917-12-27 Edward Nuebling Improvements in or relating to Rotary Meters, Pumps and Motors.
GB527339A (en) * 1939-04-06 1940-10-07 Paul Leistritz Improvements in screw pumps or screw motors
US2441771A (en) 1941-05-31 1948-05-18 Jarvis C Marble Yieldable drive for rotors
DE914886C (de) 1949-09-15 1954-07-12 Svenska Rotor Maskiner Ab Kuehleinrichtung fuer mehrteilige Gehaeuse oder Laeufer, insbesondere von Drehkolbenmaschinen mit Schraubenraedern
GB670395A (en) 1950-01-16 1952-04-16 Roots Connersville Blower Corp Improvements in or relating to rotary screw-pumps and motors
US2714314A (en) 1951-05-15 1955-08-02 Howden James & Co Ltd Rotors for rotary gas compressors and motors
GB746628A (en) 1953-04-06 1956-03-14 Dresser Ind Improvements in pumps or motors of the meshing screw type
DE1289433B (de) * 1960-07-08 1969-02-13 Prinz Fritz Schraubenrotor fuer Schraubenpumpen od. dgl. mit hohlen Schraubengaengen
US4224016A (en) 1978-09-27 1980-09-23 Brown Arthur E Rotary positive displacement machines
JPS62291486A (ja) 1986-06-12 1987-12-18 Taiko Kikai Kogyo Kk スクリユ−コンプレツサ−
JPS6336086A (ja) 1986-07-30 1988-02-16 Taiko Kikai Kogyo Kk 多段型スクリユウ式真空ポンプ
JPH02305393A (ja) 1989-05-19 1990-12-18 Hitachi Ltd スクリユーロータおよびスクリユー真空ポンプ
EP0496170A2 (fr) 1990-12-24 1992-07-29 James River Corporation Of Virginia Pompes à déplacement positif
DE4224969C1 (de) 1992-07-29 1993-09-30 Heinrich Moeller Förderschraubenpaar für rotierende Verdrängerpumpen
DE4316735A1 (de) 1993-05-19 1994-11-24 Bornemann J H Gmbh & Co Pumpverfahren zum Betreiben einer Multiphasen-Schraubenspindelpumpe und Pumpe
EP0736667A2 (fr) * 1995-04-05 1996-10-09 Ebara Corporation Rotor à vis et procédé de génération du profil de ses dents
DE19614562A1 (de) 1995-04-13 1996-10-17 Ingersoll Dresser Pump Co Schraubenpumpe
DE19522559A1 (de) 1995-06-21 1997-01-02 Sihi Ind Consult Gmbh Verdichter mit axialer Förderrichtung, insbesondere in Schraubenspindel-Bauweise
DE19522560A1 (de) 1995-06-21 1997-01-02 Sihi Ind Consult Gmbh Vakuumpumpe mit einem Paar innerhalb eines axial durchströmten Schöpfraums umlaufender Verdrängerrotoren
WO1997021925A1 (fr) 1995-12-11 1997-06-19 Ateliers Busch S.A. Systeme a vis jumelees
WO1997021926A1 (fr) 1995-12-11 1997-06-19 Ateliers Busch S.A. Vis transporteuses jumelees
WO1998011351A1 (fr) 1996-09-12 1998-03-19 Ateliers Busch S.A. Jeu de rotors filetes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10300203A1 (de) * 2003-01-08 2004-07-22 Pfeiffer Vacuum Gmbh Zweiwellenvakuumpumpe sowie Verfahren zur Herstellung einer Zweiwellenvakuumpumpe
US7192262B2 (en) 2003-01-08 2007-03-20 Pfeiffer Vacuum Gmbh Twin-shaft vacuum pump and method of forming same
CN102678542A (zh) * 2011-03-11 2012-09-19 株式会社丰田自动织机 螺杆泵
DE102011118050A1 (de) 2011-11-05 2013-05-08 Ralf Steffens Spindelverdichter-Profilkontur
US9683569B2 (en) 2015-08-27 2017-06-20 Ingersoll-Rand Company Compressor system having rotor with distributed coolant conduits and method
US10495090B2 (en) 2015-08-27 2019-12-03 Ingersoll-Rand Company Rotor for a compressor system having internal coolant manifold
CN111779676A (zh) * 2020-07-15 2020-10-16 西安交通大学 一种双齿转子压缩机转子型线及双齿转子和压缩机
CN111779676B (zh) * 2020-07-15 2021-11-19 西安交通大学 一种双齿转子压缩机转子型线及双齿转子和压缩机

Also Published As

Publication number Publication date
EP1151199A1 (fr) 2001-11-07
CA2362075A1 (fr) 2000-08-17
JP2002536593A (ja) 2002-10-29
AU1371400A (en) 2000-08-29
CN1334904A (zh) 2002-02-06
WO2000047897A1 (fr) 2000-08-17

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