CN103382937A - Positive displacement pump - Google Patents

Positive displacement pump Download PDF

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Publication number
CN103382937A
CN103382937A CN2013101587460A CN201310158746A CN103382937A CN 103382937 A CN103382937 A CN 103382937A CN 2013101587460 A CN2013101587460 A CN 2013101587460A CN 201310158746 A CN201310158746 A CN 201310158746A CN 103382937 A CN103382937 A CN 103382937A
Authority
CN
China
Prior art keywords
positive displacement
displacement pump
rotor
pump
control panel
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
Application number
CN2013101587460A
Other languages
Chinese (zh)
Inventor
J·默茨
L·卡佩尔
E·凯歇尔
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.)
Robert Bosch Automotive Steering GmbH
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of CN103382937A publication Critical patent/CN103382937A/en
Pending 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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C2240/00—Components
    • F04C2240/60—Shafts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

The invention relates to a positive displacement pump used for conveying a pressure medium to a consumer, specifically to a vane pump or a roller pump for a transmission of a motor vehicle. The positive displacement pump comprises a pump assembly and a cover. The pump assembly comprises a rotor, a cam ring and a plurality of working slip sheets. The cover is disposed on the side surface of the rotor in the axial direction. Working cavities separated by the working slip sheets are disposed between the cam ring and the rotor. The working cavities are axially limited by a control plate with a kidney-shaped delivery channel. The rotor is driven by a drive shaft. The drive shaft (2) is provided with a shaft collar (20) which is disposed between the rotor (3) and one of two control discs (6, 7). An annular recess is formed in the rotor (3) or in the control disc and the shaft collar (20) extends into the recess.

Description

Positive displacement pump
Technical field
The present invention relates to a kind ofly come the discharge pressure medium to the positive displacement pump of customer, especially for vane pump or the roller pump of the speed changer of Motor Vehicle.
Background technique
Vane pump or roller pump are for example known by DE19909963B4, DE102006052996A1 or DE10229809A1.
Positive displacement pump has the pump assembly, and this pump assembly has rotor, cam ring and a plurality of work slide plate, for example blade or roller, wherein forms a plurality of single active chambers.Rotor two distolateral on or in axial direction limit by control panel.Control panel also can be integrated in the lid of positive displacement pump on a side or can the person consist of by lid.
Known bail wire is used for being fixed for vertically the live axle of pump.But disadvantageously, because tolerance has larger axial internal clearance.In addition, may damage the axle surface during bail wire in assembling, wherein, also form such danger, bail wire may return from groove and jump out when mistake is assembled.Must worry in addition, bail wire can not encountered on existing member, because otherwise form chip due to seamed edge on bail wire or bail wire can be opened.
Summary of the invention
The object of the invention is to, avoid above-mentioned shortcoming, particularly will reach the reliable and simple axial restraint of live axle, and the member that need not to add.
This purpose reaches by the feature that provides in claim 1 preamble by the present invention.
By according to the axle collar of the present invention and its position, reached the axial restraint of rotor in positive displacement pump in simple and reliable mode.
Press advantageous manner, be arranged on rotor and constitute between the control panel of lid at this this axle collar.
The recess of annular can be used as circumferential groove system and enters in lid.Reach accurate location and thrust position between lid and the axle collar by this measure.
But certainly within the scope of the invention also possible that, the recess of annular enters in rotor as circumferential groove system.
Can set in a kind of favourable expansion structure of the present invention, the recess of annular is provided with lubrication groove.The region generating leakage of oil of known volume formula pump between lid and rotor.This leakage of oil can also can be flowed out, and leakage of oil is simultaneously as lubricant medium in this case.
Lubrication groove can constitute circumferential groove and/or axial groove at this.
When the housing parts that is arranged on according to positive displacement pump of the present invention for Motor Vehicle, can set like this, for transport pump, the screw that in axial direction extends or pin are member: lid, pump assembly and each control panel keep together.
By other dependent claims with by draw favourable expansion scheme of the present invention in the following embodiment who describes by accompanying drawing on principle.
Description of drawings
Accompanying drawing is as follows:
Fig. 1 illustrates the decomposition view of vane pump;
Fig. 2 illustrates the longitudinal section by the vane pump of Fig. 1;
Fig. 3 a illustrates by of the present invention has the live axle of the axle collar and in the partial end view as the annular recess in the lid of control panel;
Fig. 3 b illustrates the partial, longitudinal cross-sectional according to intercepting line IIIb-IIIb of Fig. 3 a;
Fig. 4 a illustrates according to another kind of scheme of the present invention has the live axle of the axle collar and in the partial end view as the annular recess in the lid of control panel;
Fig. 4 b illustrates the partial, longitudinal cross-sectional according to intercepting line IVIb-IVb of Fig. 4 a.
Embodiment
The below sets forth the present invention by vane pump.But it also is suitable for roller pump or gear pump.
Vane pump is general known, for this reason for example with reference to the described patent documentation of beginning.Only at length set forth the important parts for the present invention below this reason.
Vane pump 1 has the rotor that is arranged on live axle 2, surround the cam ring 4 of rotor 3 and the work slide plate 5 of a plurality of blade shapes be arranged on slit on the circumference of rotor 3 in.Control panel 6 and 7 is positioned on the both sides of rotor 3 and cam ring 4.In shown embodiment, control panel 7 is integrated in lid 8 in other words as lid.System enters to have kidney shape service duct 10 and blade back metanephros shape service duct 11 in known manner in control panel 6 and 7.Sealing 9 is responsible for outside sealing load medium, generally is oil.
Vane pump 1 is provided for the speed changer 12 of Motor Vehicle according to this embodiment, vane pump is arranged in this speed changer and (shell of speed changer only is shown partly) in Fig. 2.For transporting blade pump 1, therefore because the housing that lacks vane pump is provided with screw or the pin 13 that in axial direction extends.Screw 13 is the member of vane pump 1: pump assembly and live axle 2, rotor 3, cam ring 4, control panel 6 and control panel 7 lid 8 in other words keep together.
Cam ring 4 is felt relieved in the pump assembly via at least two preferred opposed pins 14 that in axial direction extend.By these two pins 14, also make lid 8, cam ring 4 and control panel 6 be positioned in their pivotal positions respect to one another.For this reason, these two pins slide through two axial grooves 15,16 and be inserted in hole 16 on lid 8 and in the hole 17 on control panel 6, and described axial groove is on the outer periphery of cam ring 4.
As seen from Figure 2, lid 8 and the control panel 7 that arranges on that side that deviates from lid of rotor 3 are felt relieved in housing 12 via the auxiliary section with coaxial annular recess 18 and 19 forms in housing 12.
Live axle 2 is provided with the axle collar 20.The axle collar 20 is between rotor and control panel 7 or lid 8 in this embodiment.At this, the axle collar is contained in the recess 21 of annular, and this recess system enters in lid 8.The recess 21 of annular enters in lid 8 as circumferential groove system.
Advantageously verified, the width of the axle collar or its axial length should be between 0.5～2mm.The overhang that the axle collar protrudes from live axle 2 circumference advantageously is between 0.5～1.5mm.Reliable location and live axle that above-mentioned size enough is used for live axle 2 can also be balanced thus, can not set up thus hydraulic surface and will produce end thrust thus.
Certainly, can also adopt according to the diameter of the physical dimension of positive displacement pump, especially live axle other size within the scope of the invention.
The recess 21 of annular is provided with lubrication groove 22, is used for supplying oiling agent to the supporting structure of positive displacement pump.The structure of lubrication groove 22 and oiling agent inlet opening all can be seen in explicitly by the embodiment as Fig. 3 of partial enlarged drawing and Fig. 4 with annular recess 21 interior together with outlet.
Fig. 3 a and 3b illustrate the structure for the lubrication system of lubrication groove 22, wherein, realize being used for the lubricated of live axle 2 between the axle collar 20 and control panel 7 or lid 8.As also appreciable by Fig. 3 a and 3b, between the peripheral wall of the axle collar 20 and radial recess 21, circumferential gap 23 is arranged, realize that by this circumferential gap the oil of lubrication groove 22 flows into, this lubrication groove is arranged between the bottom of the axle collar 20 and annular recess 21.Peripheral wall and the circumferential gap 23 between the axle collar 20 at annular recess 21 also can be set up by the reduction of recess 21.Via charging into until the axial groove 24 of live axle 2 in lid 8, oiling agent can flow out from lubrication groove 22 again.
In the embodiment according to Fig. 4 a and 4b, the diameter of the axle collar 20 and annular recess 21 except needed gap be formed objects (referring to Fig. 4 a).Oiling agent is via in the axial groove 25 input lubrication grooves 22 in lid 8, and this axial groove forms a kind of tunnel, and wherein, this axial groove continues towards live axle 2 downwards as " L " shape.Replace unique axial groove 24, can certainly be provided with a plurality of axial grooves 24 that distribute and arrange on the circumference of lid 8.Oiling agent can flow out via the annular space between the peripheral wall of the axle collar 20 and annular recess 21.
As can be seen, by not only setting up oiling agent input to the supporting position between the fixed component of live axle 2 and positive displacement pump in the embodiment shown in Fig. 3 a, 3b and 4a, 4b in order to be lubricated, and oiling agent also can flow out in this way simultaneously.
According to embodiments of the invention, for to lubrication groove 22 input and output oiling agents, the combination that also can be provided with within the scope of the invention Fig. 3 and 4 mixes in other words as other.
Reference numerals list
1 housing
2 live axles
3 rotors
4 cam rings
5 work slide plates
6 control panels
7 control panels
8 lids
9 Sealings
10 kidney shape supply passages
11 blade back metanephros shape supply passages
12 speed changers
13 pins/screw
14 pins
15 axial grooves
16 holes
17 holes
18 spaces
19 spaces
20 axle collars
21 recesses
22 lubrication grooves
23 circumferential gaps
24 axial grooves
25 axial grooves

Claims (15)

1. be used for the discharge pressure medium to the positive displacement pump of customer, especially for vane pump or the roller pump of the speed changer of Motor Vehicle, have following characteristics:
Pump assembly, this pump assembly have rotor, cam ring and a plurality of work slide plate;
Lid, this lid are arranged on the side of rotor vertically;
Be formed with the active chamber of separating by the work slide plate between cam ring and rotor, these active chambers limit by the control panel with kidney shape supply passage in the axial direction;
Rotor passes through drive shaft;
It is characterized in that following characteristics is arranged:
Live axle (2) is provided with the axle collar (20);
The axle collar (20) is between a control panel in rotor (3) and two control panels (6,7);
System enters to have the recess (21) of annular in rotor (3) or in a described control panel (6,7), and the axle collar (20) stretches in this recess.
2. positive displacement pump as claimed in claim 1, is characterized in that, the axle collar (20) is arranged on rotor (3) and constitutes between the control panel (7) of lid (8).
3. positive displacement pump as claimed in claim 2, is characterized in that, the recess (21) of annular enters in lid (8) as circumferential groove system.
4. positive displacement pump as claimed in claim 1, is characterized in that, the recess (21) of annular enters in rotor (3) as circumferential groove system.
5. positive displacement pump as described in one of claim 1～4, is characterized in that, the recess (21) of annular is provided with lubrication groove (22).
6. positive displacement pump as claimed in claim 5, is characterized in that, lubrication groove (22) constitutes circumferential groove and/or axial groove.
7. positive displacement pump as claimed in claim 5, it is characterized in that, lubrication groove (22) is arranged between a described control panel (7,8) and the axle collar (20) vertically, and the axial groove (25) in a described control panel (7,8) forms the entrance to lubrication groove (22).
8. positive displacement pump as claimed in claim 7, is characterized in that, the axial groove (25) in a described control panel (7,8) has the L shaped shape radially directed with respect to live axle (2) in order to supply oiling agent.
9. positive displacement pump as claimed in claim 5, is characterized in that, realizes via the circumferential gap (23) between the peripheral wall of the axle collar (20) and annular recess (21) to the oiling agent input of lubrication groove (22).
10. positive displacement pump as described in one of claim 1～9, is characterized in that, in order to transport the pump of not being with housing, the screw that in axial direction extends or pin (13) are member: lid (8), pump assembly and each control panel (6,7) keep together.
11. positive displacement pump as described in one of claim 1～10 is characterized in that, lid (8) and feeling relieved by the auxiliary section in housing (1) at the control panel (6) that arranges on the side that deviates from lid (8) of rotor (3).
12. positive displacement pump as described in one of claim 1～11 is characterized in that, cam ring (4) is via at least two pin (14) location of extending vertically.
13. positive displacement pump as claimed in claim 12 is characterized in that, described at least two pins (14) are positioned in their pivotal positions respect to one another lid (8), cam ring (4) and control panel (6).
14. positive displacement pump as described in one of claim 1～13 is characterized in that, the axial width of the axle collar (20) is between 0.5～2.0mm.
15. positive displacement pump as described in one of claim 1～14 is characterized in that, the axle collar (20) radially exceeds between the circumference 0.5～1.5mm of live axle (2).
CN2013101587460A 2012-05-03 2013-05-03 Positive displacement pump Pending CN103382937A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1020121038880 2012-05-03
DE201210103888 DE102012103888A1 (en) 2012-05-03 2012-05-03 Displacement pump for conveying of pressurizing agent to consumer, particularly vane-type or roller pump for transmission of motor vehicle, has pump packet with rotor, cam ring and multiple working slides

Publications (1)

Publication Number Publication Date
CN103382937A true CN103382937A (en) 2013-11-06

Family

ID=49490826

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013101587460A Pending CN103382937A (en) 2012-05-03 2013-05-03 Positive displacement pump

Country Status (2)

Country Link
CN (1) CN103382937A (en)
DE (1) DE102012103888A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107923391A (en) * 2015-09-18 2018-04-17 Ｋｙｂ株式会社 Cartridge type vane pump
CN108131275A (en) * 2018-02-09 2018-06-08 宁波洛卡特汽车零部件有限公司 A kind of vacuum pump easily assembled and its assembly method
CN108331734A (en) * 2018-02-09 2018-07-27 宁波洛卡特汽车零部件有限公司 A kind of vacuum pump and its assembly method with novel assembling structure
CN113661327A (en) * 2019-04-01 2021-11-16 Ｋｙｂ株式会社 Vane pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015115587B4 (en) * 2015-09-16 2024-07-18 Pump Technology Solutions PS GmbH POSITIVE DISPLACEMENT PUMP, METHOD FOR OPERATING A POSITIVE DISPLACEMENT PUMP, STEERING SYSTEM AND TRANSMISSION

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364868A (en) * 1967-01-17 1968-01-23 Koerper Engineering Associates Rotary piston engine
US3532447A (en) * 1968-12-31 1970-10-06 Germane Corp Fluid operated motor
US3549288A (en) * 1969-03-05 1970-12-22 Ford Motor Co Positive displacement slipper pump with flangeless drive shaft
JPH0979146A (en) * 1995-09-07 1997-03-25 Kayaba Ind Co Ltd Cover side bearing structure of hydraulic pump
CN2332831Y (en) * 1997-11-18 1999-08-11 大连叉车总厂二厂 Vacuum pump
CN2343384Y (en) * 1998-08-17 1999-10-13 永嘉县石化液压设备厂 Vane pump
CN1409013A (en) * 2001-10-03 2003-04-09 精工电子有限公司 Gas compressor
WO2007093581A1 (en) * 2006-02-18 2007-08-23 Pierburg Gmbh Oil-pump and vacuum-pump module
CN101501339A (en) * 2006-09-26 2009-08-05 株式会社日立制作所 Variable displacement vane pump
CN102089522A (en) * 2008-08-12 2011-06-08 Ixetic巴德霍姆堡有限责任公司 Pump unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909963B4 (en) 1999-03-06 2006-12-21 Zf Friedrichshafen Ag displacement
DE10229809A1 (en) 2002-07-03 2004-01-15 Zf Lenksysteme Gmbh Vane pump
DE102006052996A1 (en) 2006-11-10 2008-05-15 Zf Lenksysteme Gmbh Vane pump for steering unit of motor vehicle, has housing, outer ring and front plate centered to shaft, where front plate is provided with shaft hub that is provided with outlet for leakage oil

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364868A (en) * 1967-01-17 1968-01-23 Koerper Engineering Associates Rotary piston engine
US3532447A (en) * 1968-12-31 1970-10-06 Germane Corp Fluid operated motor
US3549288A (en) * 1969-03-05 1970-12-22 Ford Motor Co Positive displacement slipper pump with flangeless drive shaft
JPH0979146A (en) * 1995-09-07 1997-03-25 Kayaba Ind Co Ltd Cover side bearing structure of hydraulic pump
CN2332831Y (en) * 1997-11-18 1999-08-11 大连叉车总厂二厂 Vacuum pump
CN2343384Y (en) * 1998-08-17 1999-10-13 永嘉县石化液压设备厂 Vane pump
CN1409013A (en) * 2001-10-03 2003-04-09 精工电子有限公司 Gas compressor
WO2007093581A1 (en) * 2006-02-18 2007-08-23 Pierburg Gmbh Oil-pump and vacuum-pump module
CN101501339A (en) * 2006-09-26 2009-08-05 株式会社日立制作所 Variable displacement vane pump
CN102089522A (en) * 2008-08-12 2011-06-08 Ixetic巴德霍姆堡有限责任公司 Pump unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107923391A (en) * 2015-09-18 2018-04-17 Ｋｙｂ株式会社 Cartridge type vane pump
CN108131275A (en) * 2018-02-09 2018-06-08 宁波洛卡特汽车零部件有限公司 A kind of vacuum pump easily assembled and its assembly method
CN108331734A (en) * 2018-02-09 2018-07-27 宁波洛卡特汽车零部件有限公司 A kind of vacuum pump and its assembly method with novel assembling structure
CN108131275B (en) * 2018-02-09 2019-04-19 宁波洛卡特汽车零部件有限公司 A kind of vacuum pump easily assembled and its assembly method
CN113661327A (en) * 2019-04-01 2021-11-16 Ｋｙｂ株式会社 Vane pump

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent of invention or patent application
CB02 Change of applicant information

Address after: Germany, Germany

Applicant after: Robert Bosch motor turning Co., Ltd

Address before: Germany, Germany

Applicant before: ZF Friedrichshafen AG

COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: ZF FRIEDRICHSHAFEN AG TO: ROBERT BOSCH AUTOMOTIVE STEERING GMBH

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WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20131106