EP1292768A1 - Axialkolbenmaschine - Google Patents
AxialkolbenmaschineInfo
- Publication number
- EP1292768A1 EP1292768A1 EP01925467A EP01925467A EP1292768A1 EP 1292768 A1 EP1292768 A1 EP 1292768A1 EP 01925467 A EP01925467 A EP 01925467A EP 01925467 A EP01925467 A EP 01925467A EP 1292768 A1 EP1292768 A1 EP 1292768A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive shaft
- housing
- axial piston
- axially
- piston machine
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
- F04B1/126—Piston shoe retaining means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
- F04B23/106—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being an axial piston pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/14—Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/12—Parameters of driving or driven means
- F04B2201/1201—Rotational speed of the axis
Definitions
- the invention relates to an axial piston machine according to the preamble of claim 1 or 2.
- the conveying elements are formed by blades which protrude approximately radially from the circumference of the drive flange forming a rotary body and are fastened to a radially extending fastening flange which is fastened by means of screws on the side of the drive flange facing the cylinder drum.
- radial centrifugal blades acting as a centrifugal pump are provided, which are arranged between the drive flange and the cylinder drum and either to one Paddle wheel can be composed or each formed in one piece with a vertically protruding mounting plate and attached to the free end face of the drive flange facing the cylinder drum by means of fastening screws.
- the blades form pump devices with which, during the functional operation of the axial piston machine, fluid arranged in the housing interior is conveyed to an outlet opening which is radially opposite the blades in the peripheral wall of the housing and is connected to a tank.
- the invention has for its object to simplify an axial piston machine according to the preamble of claim 1 or 2.
- simple and quick production is to be achieved, so that the manufacturing costs should also be reduced.
- an essential feature of the design according to the invention namely the marking and the conveying elements, is formed on the retraction plate.
- the retraction disc is a component on which the relevant features of the invention can be prefabricated simply and quickly, so that it can be prefabricated with the configuration according to the invention in the course of its manufacture and other parts of the axial piston machine can remain unchanged or additional components, as required in the prior art can be omitted.
- FIG. 1 shows an axial piston machine according to the invention in axial section
- Fig. 3 shows an axial piston machine according to the invention in axial section in a modified embodiment.
- the axial piston machines 1 shown by way of example are those with an inclined axis design. These have a closed housing 2, with a cup-shaped housing part 3, the housing interior 4 of which is detachably closed by a so-called connecting part 5, which is screwed to the free edge of the housing part 3 by screws 6, which are indicated.
- a drive shaft 7 is rotatably mounted, which passes through the bottom wall 3a of the cup-shaped housing 3 in a through hole 8.
- the cup-shaped housing part 3 is bent in the region of its peripheral wall 3b, so that the longitudinal central axes 9a, 9b of the housing part sections which are bent or bent relative to one another form an acute angle W.
- the drive shaft 7 is arranged in the bottom housing section and is supported therein by at least one roller bearing.
- the bottom wall 3a can be formed by sealingly inserting and axially fixing a closure disk 3c in the peripheral wall 3b, the through hole 8 of which the drive shaft 7 passes through with play and is sealed by a sealing ring therein.
- two axially adjacent roller bearings 11a, 11b are provided for rotatably supporting the drive shaft 7, which are seated in a corresponding bearing bore in the region of the peripheral wall 3b of the bottom housing section.
- control disk 14 On the inside of the connecting part 5 there is a control disk 14 with two control channels 15 diametrically opposite one another and running approximately parallel to the central axis 9b of the control disk 14, each of which is connected to a supply line and a discharge line in the connecting part 5.
- cylinder drum 16 On the inside of the control disc 14 there is a cylinder drum 16 which has a coaxial guide hole 17 and a plurality of piston holes 18 which run approximately axially parallel and are distributed around the circumference and which at their ends facing the control channels 15 through tapered feed and discharge channels 19 with the control channels 15 are connected.
- the guide hole 17 and the piston holes 18 open out at the end of the cylinder drum 16 facing away from the control disk 14.
- pistons 21 are axially displaceable, preferably also slightly pendulum-mounted, which, with their ends facing the control disc 14, delimit working chambers 22 in the piston holes 18 and protrude from the cylinder drum 16 with their head ends facing away from the control disc 14 and by means of Support joints 23, in particular ball joints, are pivotally connected to the drive shaft 7 on all sides.
- the support joints 23 are located in a bearing plane E extending at right angles to the central axis section 9a, which extends obliquely to the central axis section 9b due to the housing partial sections arranged at an acute angle to one another.
- a center pin 24 is formed and pivotally connected to the drive shaft 7 by a support joint 25, which extends into the guide hole 17 and is axially displaceable therein with little movement play.
- a compression spring 26 is arranged between the center pin 24 and the cylinder drum 16 which prestresses the cylinder drum 16 against the control disk 14 with a specific axial force.
- the compression spring 26 is arranged in a hole in the center pin 24 which opens at the end, whereby it is supported on the bottom of the hole and acts against an inner shoulder surface 27 of the cylinder drum 16.
- the support joints 23 for the pistons 21 and preferably also the support joint 25 for the central pin 24 are each formed by a hemispherical spherical cap 28 in the inner, preferably flat end face 29 of the drive shaft 7 and a return disk 31 common to all pistons 21 engages behind the spherical piston ends and thus prevents them from entering the calottes 28.
- the retraction disk 31 has retraction holes 32 arranged in the number and in the position of the spherical caps 28, the edges of which engage behind the associated spherical head 21 a and thus positively prevent them from moving out of the spherical cap 28.
- the hole edges it is sufficient for the hole edges to engage behind the ball heads 21a, whereby they are smaller than the diameter of the ball heads 21a or their equator.
- the support bearing 25 for the central pin 24 can with a calotte 28 in the drive shaft 7 and a retraction hole 32 in the retraction plate 31 can be designed accordingly.
- the retraction disc 31 is detachably attached to the drive shaft 7, preferably screwed.
- a plurality of cap screws 33 can be used, which penetrate through-holes 34 in the retraction disk 31 and are screwed into corresponding threaded holes 34a in the drive shaft 7.
- a toothed ring 35 is formed with teeth 35a and tooth gaps 35b of equal size in the circumferential direction thereof.
- a sensor 36 is attached to the housing 2, which in the rotational operation of the axial piston machine 1 generates signals in a signal processing device, not shown, due to the differences that are moved past and caused by the teeth 35a and the tooth spaces 35b be used for speed measurement.
- a sensor 36 is known per se and need not be described further.
- the signals can e.g. B.
- the retraction disc 31 may also include a photosensitive element that detects the shadowing caused by teeth 35a.
- the sensor 36 is preferably arranged in the housing interior 4, wherein in the present exemplary embodiment it surrounds the peripheral wall 3b from the outside in a through hole 37 and z. B. is inserted or screwed, preferably in a screwed into the peripheral wall 3b socket 38.
- the sensor 36 is connected by an electrical line 39 to an associated electronic control device.
- Number ring 35 markings 39 instead of Number ring 35 markings 39 of any kind can be provided, to which the sensor 36 reacts to emit signals.
- a photosensitive sensor 36 z. B. light / dark contrast markings 39 may be provided.
- the teeth 35a extend axially parallel, whereby they can be bent accordingly.
- the radial dimension a of the teeth 35a can be smaller than the dimension b running in the circumferential direction.
- the dimension c of the tooth gaps 35b directed in the circumferential direction can correspond to the dimension b.
- the teeth 35a according to FIG. 3 it is advantageous for the teeth 35a according to FIG. 3 to extend in the axial direction facing away from the cylinder drum 16, with a radial distance from the circumference of the drive shaft 7 can have.
- the cross-sectional size of the drive shaft 7 can be dimensioned smaller than the cross-sectional size taken up by the calottes 28, it is advantageous to design the drive shaft 7 at its inner end facing the cylinder drum 16 with a flange 7a in which the calottes 28 or supporting joints 23 are trained.
- the markings 39 are formed by molded parts, it is advantageous to form these molded parts in one piece on the retraction disc 31, as is possible with a ring gear 35. It is furthermore advantageous to form the teeth 35a in one piece by punching on the withdrawal disk 31.
- the retraction plate can be manufactured by punching, z. B. by punching out a corresponding board, in particular by punching a sheet.
- the teeth can be bent and the hole edges of the withdrawal holes 32 can be embossed or deformed by pressure. It is advantageous to circulate the fluid of the axial piston machine 1 located in the housing interior 4 preferably continuously.
- the above-described molded parts or teeth 35a can serve as conveying elements 40, conveying the fluid to an outlet opening 41 in the peripheral wall 3b and through a line (not shown) extending from the outlet opening 41 to a tank.
- the conveying elements which also form markings 39 or teeth 35a, by means of blades, which improve the conveying performance.
- the teeth 35a form conveying elements of a conveying device, it is advantageous to make the existing annular space between the conveying elements 40 and the peripheral wall 3b larger in the area of the outlet opening 41 than in the remaining area or this annular space towards the outlet opening 41 continuously enlarge.
- the bearing plane E runs on the end face of the drive shaft 7, a considerable thickness of the retraction plate 31 is required in order to achieve a secure engagement of the piston heads 21a behind.
- the bearing plane E is offset in the drive shaft 7 with respect to the end face by the offset dimension v.
- the perforated surfaces 32a are formed on preferably segment or ring-shaped bearing projections 43 which protrude from the hole edge of the retraction holes 32 towards the drive shaft 7 and protrude into corresponding extensions 44 of the spherical caps 28 which extend approximately to the equator of the spherical cap 28.
- the bearing lugs 43 are preferably formed in one piece.
- the retraction plate 31 is preferably a stamped part or a stamped / bent part, or stamped / molded part.
- the axial piston machine 1 cannot be adjusted with regard to its throughput volume. It is a so-called constant machine. 3, the throughput volume of the axial piston machine can be reduced or increased.
- a known, generally designated 45 adjusting device with an adjusting member 46, the z. B. is in operative connection with the control disc 14 and with which the cylinder drum 16 is adjustable between a minimum position and a maximum position and is preferably also adjustable in intermediate positions. The minimum and maximum position is limited by lateral stops 47, 48, which can be formed by adjusting screws encompassing the peripheral wall 3b.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04007090A EP1433954B1 (de) | 2000-06-20 | 2001-03-15 | Axialkolbenmaschine |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10030147A DE10030147C1 (de) | 2000-06-20 | 2000-06-20 | Axialkolbenmaschine |
DE10030147 | 2000-06-20 | ||
PCT/EP2001/002950 WO2001098656A1 (de) | 2000-06-20 | 2001-03-15 | Axialkolbenmaschine |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04007090.6 Division-Into | 2004-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1292768A1 true EP1292768A1 (de) | 2003-03-19 |
EP1292768B1 EP1292768B1 (de) | 2004-11-24 |
Family
ID=7646246
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01925467A Expired - Lifetime EP1292768B1 (de) | 2000-06-20 | 2001-03-15 | Axialkolbenmaschine |
EP04007090A Expired - Lifetime EP1433954B1 (de) | 2000-06-20 | 2001-03-15 | Axialkolbenmaschine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04007090A Expired - Lifetime EP1433954B1 (de) | 2000-06-20 | 2001-03-15 | Axialkolbenmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US6779433B2 (de) |
EP (2) | EP1292768B1 (de) |
DE (3) | DE10030147C1 (de) |
WO (1) | WO2001098656A1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004109107A1 (de) * | 2003-06-11 | 2004-12-16 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit versetztem positionierelement und steuerscheibe für eine solche axialkolbenmaschine |
DE10347086A1 (de) * | 2003-06-11 | 2005-01-05 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit versetztem Positionierelement und Steuerscheibe für eine solche Axialkolbenmaschine |
DE10347085B3 (de) * | 2003-10-10 | 2005-06-16 | Brueninghaus Hydromatik Gmbh | Hydrostatische Kolbenmaschine mit zwei hydraulischen Kreisläufen |
DE102004010351B4 (de) * | 2004-03-03 | 2006-02-09 | Sauer-Danfoss (Neumünster) GmbH & Co OHG | Hydrostatische Verstelleinheit mit Schrägscheibe, rotierendem Zylinderblock und einem Drehzahlgeber |
US7275474B2 (en) * | 2005-05-31 | 2007-10-02 | Parker-Hannifincorporation | Optical position sensing and method |
US7721687B1 (en) | 2006-04-17 | 2010-05-25 | James Lockshaw | Non-reciprocating, orbital, internal combustion engine |
US8161924B1 (en) | 2006-04-17 | 2012-04-24 | James Lockshaw | Orbital, non-reciprocating, internal combustion engine |
DE102009058332B4 (de) * | 2009-12-15 | 2019-11-28 | Robert Bosch Gmbh | Axialkolbenmaschine |
DE102010026182A1 (de) * | 2010-07-06 | 2012-01-12 | Robert Bosch Gmbh | Kolbenmaschine mit einem Sensor zur Drehzahlerfassung |
US8555830B2 (en) | 2011-10-14 | 2013-10-15 | James Lockshaw | Orbital, non-reciprocating, internal combustion engine |
JP5063823B1 (ja) | 2012-04-13 | 2012-10-31 | 株式会社小松製作所 | 斜軸式アキシャルピストンポンプ・モータ |
DE102012016069A1 (de) * | 2012-08-14 | 2014-02-20 | Robert Bosch Gmbh | Rohteil, Triebwelle, Hydrostatische Maschine und Verfahren zur Herstellung einer Triebwelle für eine hydrostatische Maschine |
EP3020969B1 (de) | 2014-11-11 | 2017-09-27 | Danfoss A/S | Pumpenanordnung |
US9624825B1 (en) | 2015-12-02 | 2017-04-18 | James Lockshaw | Orbital non-reciprocating internal combustion engine |
JP6800192B2 (ja) * | 2018-09-28 | 2020-12-16 | 本田技研工業株式会社 | 内燃機関の回転数検出装置 |
DE102019202483A1 (de) * | 2019-02-25 | 2020-08-27 | Robert Bosch Gmbh | Axialkolbenmaschine mit einstückiger Zählperforation |
CN113833739A (zh) * | 2021-09-28 | 2021-12-24 | 杭州力龙液压有限公司 | 传动轴、液压马达及工程机械 |
JP2023070590A (ja) * | 2021-11-09 | 2023-05-19 | 川崎重工業株式会社 | シリンダブロック、及びそれを備える液圧装置 |
JP2023070591A (ja) * | 2021-11-09 | 2023-05-19 | 川崎重工業株式会社 | 液圧システム |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4655689A (en) * | 1985-09-20 | 1987-04-07 | General Signal Corporation | Electronic control system for a variable displacement pump |
JPS62201366A (ja) | 1986-02-28 | 1987-09-05 | Diesel Kiki Co Ltd | 圧縮機の回転速度検出装置 |
US5135031A (en) * | 1989-09-25 | 1992-08-04 | Vickers, Incorporated | Power transmission |
US5073091A (en) * | 1989-09-25 | 1991-12-17 | Vickers, Incorporated | Power transmission |
DE4215869C2 (de) * | 1992-05-14 | 1996-01-11 | Hydromatik Gmbh | Hydrostatische Maschine mit Leckölabführung |
DE9408860U1 (de) * | 1994-05-31 | 1994-07-21 | Schaeffler Waelzlager Kg | Axialkolbenmaschine |
DE19649195C1 (de) * | 1996-11-27 | 1998-01-08 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit Lagerspülung |
-
2000
- 2000-06-20 DE DE10030147A patent/DE10030147C1/de not_active Expired - Fee Related
-
2001
- 2001-03-15 DE DE50104620T patent/DE50104620D1/de not_active Expired - Fee Related
- 2001-03-15 DE DE50105498T patent/DE50105498D1/de not_active Expired - Fee Related
- 2001-03-15 WO PCT/EP2001/002950 patent/WO2001098656A1/de active IP Right Grant
- 2001-03-15 EP EP01925467A patent/EP1292768B1/de not_active Expired - Lifetime
- 2001-03-15 US US10/275,629 patent/US6779433B2/en not_active Expired - Fee Related
- 2001-03-15 EP EP04007090A patent/EP1433954B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0198656A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001098656A1 (de) | 2001-12-27 |
US20030136359A1 (en) | 2003-07-24 |
EP1433954A1 (de) | 2004-06-30 |
DE50105498D1 (de) | 2005-04-07 |
DE10030147C1 (de) | 2002-06-06 |
US6779433B2 (en) | 2004-08-24 |
EP1292768B1 (de) | 2004-11-24 |
EP1433954B1 (de) | 2005-03-02 |
DE50104620D1 (de) | 2004-12-30 |
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