EP1090226B1 - Doppelpumpen-aggregat - Google Patents
Doppelpumpen-aggregat Download PDFInfo
- Publication number
- EP1090226B1 EP1090226B1 EP99931129A EP99931129A EP1090226B1 EP 1090226 B1 EP1090226 B1 EP 1090226B1 EP 99931129 A EP99931129 A EP 99931129A EP 99931129 A EP99931129 A EP 99931129A EP 1090226 B1 EP1090226 B1 EP 1090226B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intermediate element
- connection plates
- pump unit
- connection
- main body
- 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.)
- Expired - Lifetime
Links
Images
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
- 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
- F04B1/2064—Housings
-
- 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
- F04B1/22—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 having two or more sets of cylinders or pistons
Definitions
- the invention relates to a double pump unit for connection of two hydraulic pumps.
- the hydraulic pumps either work as so-called tandem pumps, each with the same Delivery volume or as so-called contact pumps different funding volume.
- a double pump unit according to the preamble of the claim 1 is known from DE 195 36 997 C1.
- the coupling piece surrounding connector are high pressure lines and Low pressure lines formed to the cylinders of the Hydropumps cyclically with a control body To supply high pressure and low pressure.
- the integration of a charge pump in the Connector to increase pre-compression in to reach the low pressure line.
- the invention is therefore based on the object of a double pump unit to create that starting from a basic construction in a simple manner to different configurations is customizable.
- the invention is characterized by the characterizing features of Claim 1 in connection with the generic features solved.
- connection plates each constructed in the same way and into one between the connection plates arranged intermediate element that is interchangeable and can be individually designed for all configurations the same basic elements can be used.
- the connection plates each have a recess in which the respective intermediate element at least is partially usable, so that the connection plates Radially at least partially encompass the intermediate element and thus the intermediate element between the connection plates is fixed.
- there is a radial Centering of the connection plates by the Intermediate element is conveyed.
- the radial centering of the Connection plates is essential for the exact coaxial Alignment of the drive shafts of the hydraulic pumps.
- the intermediate element can, for example, according to claim 2 in a simple manner as a disc-shaped cylinder body be trained.
- the cutouts are in the connection plates also cylindrical and correct in diameter with the diameter of the Intermediate element match.
- connection plates can according to claim 3 in one radially outer area are screwed together.
- the intermediate element can have at least one Ring channel have different arrangements of the to enable individual connections.
- a charge pump can be in the intermediate piece integrated for example in the form of a gear pump his.
- the intermediate element is divided into one Main body and one in a recess of the main body used insert body that receives the charge pump.
- the main body forms a first axial projection and the insert body a second axial projection, each in a recess of the engage both connection plates. Overall, it results also centering the two connection plates over their recesses and the one in between Intermediate element. It is also advantageous here if the cutouts of the connection plate and the main body are cylindrical in accordance with claim 7 and each have the same diameter.
- Corresponding Claim 8 are a low pressure connection in the main body and a connection from the charge pump to one of the Connection plates adjacent to the first ring channel integrated.
- the insert body is a connection from the Charge pump to one adjacent to the other connection plate second ring channel integrated. Ensure the ring channels a flexible connection to the low pressure connections in the adjacent connection plates.
- the Connection plates and the main body can according to claim 9 in a radial insert body surrounding area to be screwed together.
- Fig. 1 shows an embodiment of the invention Double pump unit 1 in an axial longitudinal section. A first configuration of this double pump unit is shown 1.
- the double pump unit consists of two hydraulic pumps 2 and 3, the swashplate design in the illustrated embodiment are trained.
- the hydraulic pumps 2 and 3 have each have a drive shaft 4 and 5, which are coaxial with each other are aligned.
- the drive shaft 4 of the in Fig. 1st left hydraulic pump 2 is with a drive pin 6 from the Housing 7 also extended to a common drive to enable the two hydraulic pumps 2 and 3.
- the Drive shafts 4 and 5 are connected via a first roller bearing 8 or 9 in the housing 7 or 10 of the respective hydraulic pump 2 or 3 and via a second roller bearing 11 or 12 in a first Connection plate 13 or a second connection plate 14 one mounted connector 15 to be described in more detail.
- connection plates 13 and 14 are high pressure lines 29 and 30 and low pressure lines 31 and 32 integrated.
- the cylinders 18 and 19, respectively are adjacent to the associated connection plate 13 or 14 Control body 33 and 43 with each revolution of the Cylinder drum 16 or 17 cyclically with the respective high pressure line 29 or 30 and the respective Low pressure line 31 and 32 connected.
- swivel cradle 24 or 25 can also line 31 or 32 high pressure and Lead line 29 or 30 low pressure.
- connection plate 13 has a recess 34 and the second connection plate 14 a recess 35, in which an intermediate element 38 can be inserted.
- the Intermediate element 38 is by means of seals 36 and 37 sealed.
- the intermediate element 38 is shown in FIG Embodiment as a disc-shaped cylinder body trained and is completely by the two as well cylindrical recesses 34 and 35 of the Connection plates 13 and 14 added.
- the connection plates 13 and 14 are in an area radially surrounding the intermediate element 38 39 or 40 by preferably several, distributed over the circumference arranged screws 41 screwed together.
- the intermediate element 38 can according to the requirements of the special Hydraulic pump unit 1 can be designed individually.
- the configuration shown Intermediate element 38 is particularly simple and therefore inexpensive to manufacture.
- This configuration of the Intermediate element 38 allows simple mechanical and hydraulic connection of the two hydraulic pumps 2 and 3, especially in cases where no charge pump is used Increasing the boost pressure is necessary.
- the Connection plates 13 and 14 through the intermediate piece 38 centered to each other so that there is an exact coaxial Alignment of the drive shafts 4 and 5 results.
- Intermediate element 38 is provided with an annular channel 42. there serves the intermediate element 38 at the same time to supply the two hydraulic pumps 2 and 3 with the low pressure.
- the connection between the low pressure ports 31 and 32 with the the low pressure supplying annular channel 42 can be on any Place take place, so that a high flexibility in the Arrangement of the connections is guaranteed.
- connection plates 13 and 14 of the two hydraulic pumps 2 and 3 are preferably identical and can also be rotated by 180 ° mounted on the housings 7 and 10 of the hydraulic pumps 2 and 3 become. There is therefore a possibility that the high pressure lines 29 and 30 and low pressure lines 31 and 32 through Twisting the connecting plates 13 and 14 interchanged to be ordered.
- This installation flexibility is special important if the connection plates 13 and 14 for different Flow directions are designed. To emphasize is that this flexibility in the state of the art Technology known connectors, in which the Connection plates 13 and 14 connected in one piece are, basically does not exist.
- connection plates 13 and 14 can also in the Drawing valves, not shown, in particular Pressure relief valves for high pressure protection, or Control valves can be integrated.
- FIG. 2 shows that already described with reference to FIG. 1 Embodiment in an axial longitudinal section accordingly a second configuration of the connector 15.
- connection piece 15 from the opposite that in Fig. 1st Configuration shown unchanged connection plates 13th and 14 and one configured differently from FIG. 1 Intermediate element 38.
- the intermediate element 38 consists of a configuration Main body 50, one in a recess 51 of the main body 50 insert body 52 used and one in one Recess 53 of the insert body 52 loading pump used 54.
- the charge pump 54 is shown in FIG. 2 Exemplary embodiment as a gear pump in crescent moon design educated. However, it can also be used for training Think paddle wheels or in the manner of a turbine.
- An axial projection 55 is provided on the main body 50, that in the exemplary embodiment with a cylindrical outer contour is formed and in the in the embodiment also cylindrical recess 35 of the Connection plate 14 engages.
- the insert body 52 protrudes the main body 50 axially out.
- the one from the main body 50 protruding section of the insert body 52 forms a second axial projection 53 which in the recess 34 of the Connection plate 13 engages.
- the recess 34 of the connecting plate 14 is cylindrical formed, preferably the recesses 34, 51 and 35 have the same diameter.
- a low pressure connection 56 is integrated into the main body 50, which is connected to the charge pump 54.
- In the insert body 52 is one Connection 58 from the charge pump 54 to one on the connection plate 13 adjacent second ring channel 59 is provided.
- the Ring channels 57 and 59 have the advantage that the connection with the respective low pressure line 31 or 32 suitable place can take place.
- the intermediate piece 38 takes over at the in Fig. 2nd configuration shown both the function of Centering as well as the function of integrating the Charge pump 54. Elaborate piping to the two To connect hydraulic pumps 2 and 3 with the charge pump 54 unnecessary.
- the charge pump 54 can also be rotated through 180 ° to be installed if the drive shafts 4 and 5 have reverse direction of rotation.
- the invention is not based on the illustrated embodiment limited.
- other charge pumps can also be used are used or additional functions on the Intermediate element 38 can be integrated.
- in the intermediate element 38 also control valves, pressure relief valves and other hydraulic components can be arranged.
- the Design according to the invention allows a cost and Length-optimized connection of two hydraulic pumps 2 and 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Description
- Fig. 1
- einen axialen Schnitt durch ein Ausführungsbeispiel eines erfindungsgemäßen Doppelpumpen-Aggregats in einer ersten Konfiguration; und
- Fig. 2
- einen axialen Schnitt durch ein Ausführungsbeispiel des erfindungsgemäßen Doppelpumpen-Aggregats in einer zweiten Konfiguration.
Claims (9)
- Doppelpumpen-Aggregat (1) mit
zwei Hydropumpen (2, 3) mit koaxial zueinander angeordneten Antriebswellen (4, 5), die mittels eines Kupplungsstücks (28) kraftschlüssig miteinander gekoppelt sind, und einem das Kupplungsstück (28) umgebenden Verbindungsstück (15), in welchem Hochdruckleitungen (29, 30) und Niederdruckleitungen (31, 32) ausgebildet sind und das sich zwischen zwei jeweils einer der Hydropumpen (2, 3) zugeordneten Steuerkörpern (33, 43), die der zyklischen Verbindung von Zylindern (18, 19) der Hydropumpen (2, 3) mit den Hochdruckleitungen (29, 30) und den Niederdruckleitungen (31, 32) dienen, erstreckt,
dadurch gekennzeichnet, daß das Verbindungsstück (15) zwei jeweils an dem Steuerkörper (33, 43) einer der Hydropumpen (2, 3) angrenzende Anschlußplatten (13, 14) und ein zwischen den Anschlußplatten (13, 14) angeordnetes, auswechselbares und individuell ausgestaltbares Zwischenelement (38) aufweist, wobei die Anschlußplatten (13, 14) jeweils eine Aussparung (34, 35) aufweisen, in die das Zwischenelement (38) jeweils so zumindest teilweise einsetzbar ist, daß die Anschlußplatten (13, 14) das Zwischenelement (38) radial zumindest teilweise umgreifen und das Zwischenelement (38) zwischen den Anschlußplatten (13, 14) fixiert ist. - Doppelpumpen-Aggregat nach Anspruch 1,
dadurch gekennzeichnet, daß das Zwischenelement (38) ein scheibenförmiger Zylinderkörper ist, dessen Durchmesser mit den zylinderförmig ausgebildeten Aussparungen (34, 35) der Anschlußplatten (13, 14) im wesentlichen übereinstimmt. - Doppelpumpen-Aggregat nach Anspruch 2,
dadurch gekennzeichnet, daß die Anschlußplatten (13, 14) das Zwischenelement (38) radial vollständig umschließen und die Anschlußplatten (13, 14) in einem das Zwischenelement (38) radial umschließenden Bereich (39, 40) miteinander verschraubt sind. - Doppelpumpen-Aggregat nach Anspruch 3,
dadurch gekennzeichnet, daß das Zwischenelement (38) zumindest einen Ringkanal (42) aufweist. - Doppelpumpen-Aggregat nach Anspruch 1,
dadurch gekennzeichnet, daß das Zwischenelement (38) einen Hauptkörper (50), einen in eine Aussparung (51) des Hauptkörpers (50) eingesetzten Einsatzkörper (52) und eine in eine Aussparung (54) des Einsatzkörpers (52) eingesetzte Ladepumpe (54) aufweist. - Doppelpumpen-Aggregat nach Anspruch 5,
dadurch gekennzeichnet, daß der Hauptkörper (50) einen ersten axialen Vorsprung (55) aufweist, der in die Aussparung (35) einer der beiden Anschlußplatten (14) eingreift und daß der Einsatzkörper (52) aus der Aussparung (51) des Hauptkörpers (50) herausragt und der aus dem Hauptkörper (50) herausragende Abschnitt des Einsatzkörpers (52) einen zweiten axialen Vorsprung (59) bildet, der in die Aussparung (34) der anderen Anschlußplatte (13) eingreift. - Doppelpumpen-Aggregat nach Anspruch 6,
dadurch gekennzeichnet, daß die Aussparungen (34, 35, 51) der Anschlußplatten (13, 14) und des Hauptkörpers (55) zylinderförmig ausgebildet sind und den gleichen Durchmesser aufweisen, wobei der Einsatzkörper (52) mit zylinderförmigen Außenabmessungen ausgebildet ist - Doppelpumpen-Aggregat nach einem der Ansprüche 5 bis 7,
dadurch gekennzeichnet, daß in dem Hauptkörper (55) ein Niederdruckanschluß (56) und eine Verbindung (57) von der Ladepumpe (54) zu einem an eine der Anschlußplatten (14) angrenzenden ersten Ringkanal (57) und in dem Einsatzkörper (52) eine Verbindung (58) von der Ladepumpe (54) zu einem an die andere Anschlußplatte (13) angrenzenden zweiten Ringkanal (59) integriert sind. - Doppelpumpen-Aggregat nach einem der Ansprüche 5 bis 8,
dadurch gekennzeichnet, daß die Anschlußplatten (13, 14) und der Hauptkörper (50) in einem den Einsatzkörper (52) radial umgebenden Bereich (39, 40) miteinander verschraubt sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19828180 | 1998-06-24 | ||
DE19828180A DE19828180C2 (de) | 1998-06-24 | 1998-06-24 | Doppelpumpen-Aggregat |
PCT/EP1999/004303 WO1999067532A1 (de) | 1998-06-24 | 1999-06-22 | Doppelpumpen-aggregat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1090226A1 EP1090226A1 (de) | 2001-04-11 |
EP1090226B1 true EP1090226B1 (de) | 2003-03-05 |
Family
ID=7871895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99931129A Expired - Lifetime EP1090226B1 (de) | 1998-06-24 | 1999-06-22 | Doppelpumpen-aggregat |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1090226B1 (de) |
DE (2) | DE19828180C2 (de) |
WO (1) | WO1999067532A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10021485B4 (de) * | 2000-05-03 | 2006-03-23 | Brueninghaus Hydromatik Gmbh | Hydrostatische Maschine |
DE20018570U1 (de) * | 2000-10-30 | 2002-03-21 | Liebherr Machines Bulle S A | Hydrostatische Doppelaxialkolbenpumpe |
US6705840B1 (en) | 2002-06-19 | 2004-03-16 | Hydro-Gear Limited Partnership | Inline tandem pump |
US6953327B1 (en) | 2003-03-11 | 2005-10-11 | Hydro-Gear Limited Partnership | Dual pump |
US6973783B1 (en) | 2004-02-27 | 2005-12-13 | Hydro-Gear Limited Partnership | Zero turn drive apparatus |
US7137250B1 (en) | 2004-03-08 | 2006-11-21 | Hydro-Gear Limited Partnership | Zero turn drive apparatus with power take off |
US7377105B1 (en) | 2004-11-12 | 2008-05-27 | Hydro-Gear Limited Partnership | Dual pump assembly |
US7162870B1 (en) | 2004-11-12 | 2007-01-16 | Hydro-Gear Limited Partnership | Pump assembly |
US7347047B1 (en) | 2004-11-12 | 2008-03-25 | Hydro-Gear Limited Partnership | Pump assembly |
EP1748189B1 (de) | 2005-07-27 | 2012-09-26 | Poclain Hydraulics | Tandem-Axialkolbenpumpe |
US7726126B1 (en) | 2005-12-21 | 2010-06-01 | Hydro-Gear Limited Partnership | Dual pump apparatus with power take off |
DE202006005682U1 (de) | 2006-04-05 | 2006-06-14 | Lincoln Gmbh & Co. Kg | Schmiermittel- oder Hydraulikpumpe |
US9010105B1 (en) | 2007-08-01 | 2015-04-21 | Hydro-Gear Limited Partnership | Transmission and engine configuration |
RU194266U1 (ru) * | 2019-09-27 | 2019-12-04 | федеральное государственное бюджетное образовательное учреждение высшего образования "Иркутский национальный исследовательский технический университет" (ФГБОУ ВО "ИРНИТУ") | Аксиально-поршневая гидромашина |
JP7285768B2 (ja) * | 2019-12-16 | 2023-06-02 | 株式会社クボタ | ハウジング構造 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1937347A1 (de) * | 1969-07-23 | 1971-02-04 | Bosch Gmbh Robert | Hydroaggregat |
DE2332584A1 (de) * | 1973-06-27 | 1975-01-09 | Johannes Neukirch | Axialkolbenpumpe oder -motor |
DE2652231C2 (de) * | 1976-11-16 | 1983-10-13 | Linde Ag, 6200 Wiesbaden | Axialkolbenmaschine |
DE3324583A1 (de) * | 1982-07-07 | 1984-01-12 | Linde Ag, 6200 Wiesbaden | Zweimaschinen-aggregat mit anschluss fuer einen weiteren verbraucher mechanischer energie |
JPS5920576A (ja) * | 1982-07-26 | 1984-02-02 | Ebara Corp | 可変容量形アキシヤルピストン機械の容量制御機構 |
DE3238362A1 (de) * | 1982-10-15 | 1984-04-19 | Linde Ag, 6200 Wiesbaden | Axialkolbenmaschine |
DE3716374C2 (de) * | 1987-05-15 | 1995-02-23 | Linde Ag | Aggregat aus einer Primärenergiequelle und mehreren, an diese angeflanschten Axialkolbenpumpen |
DE4225380B4 (de) * | 1992-07-31 | 2004-07-15 | Linde Ag | Hydrostatisches Aggregat mit einer Hauptpumpe und einer Nebenpumpe |
DE19536997C1 (de) * | 1995-10-04 | 1997-02-20 | Brueninghaus Hydromatik Gmbh | Doppelpumpe mit Ladepumpe |
-
1998
- 1998-06-24 DE DE19828180A patent/DE19828180C2/de not_active Expired - Fee Related
-
1999
- 1999-06-22 DE DE59904464T patent/DE59904464D1/de not_active Expired - Lifetime
- 1999-06-22 WO PCT/EP1999/004303 patent/WO1999067532A1/de active IP Right Grant
- 1999-06-22 EP EP99931129A patent/EP1090226B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19828180C2 (de) | 2000-04-20 |
DE59904464D1 (de) | 2003-04-10 |
DE19828180A1 (de) | 2000-01-13 |
WO1999067532A1 (de) | 1999-12-29 |
EP1090226A1 (de) | 2001-04-11 |
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