EP2516860A2 - Commande hydraulique - Google Patents

Commande hydraulique

Info

Publication number
EP2516860A2
EP2516860A2 EP10808974A EP10808974A EP2516860A2 EP 2516860 A2 EP2516860 A2 EP 2516860A2 EP 10808974 A EP10808974 A EP 10808974A EP 10808974 A EP10808974 A EP 10808974A EP 2516860 A2 EP2516860 A2 EP 2516860A2
Authority
EP
European Patent Office
Prior art keywords
hydraulic
pump
control
pumps
control plate
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
Application number
EP10808974A
Other languages
German (de)
English (en)
Other versions
EP2516860B1 (fr
Inventor
Uwe Bastian
Marco Grethel
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2516860A2 publication Critical patent/EP2516860A2/fr
Application granted granted Critical
Publication of EP2516860B1 publication Critical patent/EP2516860B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • F04C14/065—Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
    • 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
    • F04C2/086—Carter
    • 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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

Definitions

  • the invention relates to a hydraulic control with a control plate assembly and with a hydraulic conveyor for conveying a hydraulic medium.
  • an oil supply (usually pump with pump drive) is necessary.
  • the pump drive is a mechanical pump drive, which is coupled to the combustion engine.
  • the object of the invention is to provide a simple way of supplying different supply areas with hydraulic medium.
  • the object is achieved in a hydraulic control with a control plate assembly and with a hydraulic conveyor for conveying a hydraulic medium, characterized in that the hydraulic conveyor is integrated in the control plate assembly.
  • the control plate assembly includes at least one control plate, which includes, for example, hydraulic channels and hydraulic connections for hydraulic valves.
  • the inventive placement of the hydraulic conveyor in the control plate assembly of the available space can be used optimally, since otherwise required hydraulic connections between the hydraulic control and the hydraulic conveyor can be omitted.
  • a preferred embodiment of the hydraulic control is characterized in that a first hydraulic pump is integrated in a first control plate of the control plate assembly.
  • the first hydraulic pump is used, for example, to supply an actuator system of a parallel shift transmission with hydraulic oil.
  • the actuator system is preferably equipped with a pressure accumulator which is filled or charged with the aid of the first hydraulic pump.
  • the first hydraulic pump preferably delivers a relatively low hydraulic medium volume flow, but with a relatively high pressure.
  • a second hydraulic pump is integrated in a second control plate of the control plate assembly.
  • the second hydraulic pump is used, for example, to supply a wet clutch with cooling medium, in particular cooling oil.
  • the second hydraulic pump provides a relatively large hydraulic medium flow rate, but with a relatively low pressure.
  • the two hydraulic pumps are driven by a single electric motor.
  • An otherwise required second electric motor for driving the second hydraulic pump can be omitted.
  • the electric motor is preferably mounted on the outside of the first control plate.
  • the two hydraulic pumps are preferably arranged completely in the two control plates of the control plate arrangement. Thus, no additional space, especially no housing needed for the hydraulic pumps.
  • the two hydraulic pumps are connected in series.
  • the two hydraulic pumps are preferably arranged adjacent to one another in the two control plates.
  • the hydraulic pumps are preferably arranged so that they have a common have same drive axis of rotation, which coincides with the drive axis of rotation of the electric motor.
  • the two hydraulic pumps are drivingly coupled to each other via a switchable coupling. Due to the switchable coupling, the two hydraulic pumps can be coupled to the electric motor so that they are simultaneously driven by the electric motor. If required, one of the hydraulic pumps can be decoupled from the electric motor by means of the switchable clutch. Then only one of the hydraulic pumps is driven by the electric motor. When the electric motor is switched off, then none of the hydraulic pumps is driven.
  • control plates are pump housings for the hydraulic pumps.
  • the two hydraulic pumps are designed as gear pumps, in particular external gear pumps. All pump gears of the two gear pumps are arranged in the control plates. The storage of the pump gears is also integrated in the control plates.
  • the two hydraulic pumps are driven by a common pump shaft.
  • the common pump shaft is, preferably via an Oldham coupling, coupled to the common electric motor, that is drivingly connected.
  • the Oldham coupling is preferably located at one end of the common pump shaft.
  • the shiftable clutch is preferably arranged at the other end of the common pump shaft.
  • the plummer block includes, for example, a plummer block sleeve which is fixedly connected to the first control plate, for example, is pressed into this, and in a receiving space for the second hydraulic pump protrudes, which is recessed in the second control plate.
  • Figure 1 shows a representation of a first section through a hydraulic control according to the invention with actuated clutch
  • FIG 3 shows the same section as in Figure 1 with non-actuated clutch.
  • a hydraulic control system 1 for a parallel shift transmission of a motor vehicle is shown in various sectional views and states.
  • the hydraulic control 1 comprises a control plate assembly 10 having a first control plate 11 and a second control plate 12. Between the two control plates 11 and 12, an intermediate plate 13 is arranged.
  • a hydraulic conveyor 14 is integrated, which includes a first hydraulic pump 15 and a second hydraulic pump 16.
  • the two hydraulic pumps 15, 16 are both driven by a single electric motor 18.
  • the electric motor 18 is attached to the side facing away from the second control plate 12 of the first control plate 11.
  • a receiving space for the hydraulic conveyor 14 in the two control plates 11, 12 is closed hydraulically sealed by a cover 19 with a corresponding seal.
  • the two hydraulic pumps 15, 16 are both driven by a common pump shaft 20 by the electric motor 18.
  • the common pump shaft 20 extends in the two control plates 11 and 12 through the intermediate plate 13 therethrough.
  • One end of the pump shaft 20 is rotatably connected via a Oldham- uptake 22 with a drive shaft of the electric motor 18.
  • Both hydraulic pumps 15, 16 are designed as external gear pumps, in which
  • Hydraulic medium in particular hydraulic oil, taken in tooth gaps and is conveyed along a Steuerplatteninnenwandung of a suction chamber to a pressure chamber.
  • the engagement of gear teeth prevents unwanted backflow of the hydraulic medium.
  • a negative pressure is created on one suction side and an overpressure on one pressure side.
  • the common pump shaft 20 is rotatably connected via a transverse pin 23 with a pump gear 24 of the first hydraulic pump 15.
  • the pump gear 24 driven by the pump shaft 20 meshes with another pump gear 28 of the first hydraulic pump 15.
  • the further pump gear 28 of the first hydraulic pump 15 is connected in a rotationally fixed manner to a pump shaft 30 by a further transverse pin 29.
  • the pump shaft 30, as well as the pump shaft 20, rotatably mounted in two bearing glasses 25, 26.
  • the two pump gears 24, 28 are mounted with the aid of the bearing glasses 25, 26 in the first control plate 11.
  • the two bearing glasses 25, 26 provide axial contact surfaces for the pump gears 24, 28 available.
  • For gap compensation at least one sealing ring is provided.
  • the second hydraulic pump 16 has a significantly lower pressure level than the first hydraulic pump 15 and is installed without bearing glasses directly between the intermediate plate 13 and the second control plate 12.
  • a pillow block 34 For storage of the second hydraulic pump 16 is a pillow block 34 which includes a plummer block sleeve which is fixed with one end in the first control plate 11.
  • the plummer block sleeve is preferably pressed into the control plate 11 and protrudes into a receiving space for the second hydraulic pump 16 in the second control plate 12.
  • a clutch 35 is provided, which via a toothing 36 at the end of the pump shaft 20 rotatably connected to the pump shaft 20 is connected.
  • the clutch 35 is by positive engagement, for example by two lugs, permanently rotatably connected to a pump gear 32 of the second hydraulic pump 16, even when not actuated clutch 35.
  • This has the advantage that at a non-actuation of the Clutch 35, so when the pump gear 32, and the clutch 35 and an associated sealing ring 37, which serves to seal a pressure chamber, no rotational movement and thus produces no power losses.
  • the clutch 35 does not need to be threaded into the pump gear 32 during each shift.
  • the pump gear 32 of the second hydraulic pump 16 meshes with another
  • the pillow block 39 comprises a plummer block sleeve, which is pressed with one end into the first control plate 11 and projects with the other end into the second control plate 12.
  • the clutch 35 is shown in the actuated state in which the pump shaft 20 via the transverse pin 23 drivingly connected to the pump gear 24 of the first hydraulic pump 15 and the actuated clutch 35 is drivingly connected to the pump gear 32 of the second hydraulic pump 16 ,
  • the clutch 35 is actuated via a hydraulic switching signal, which is transmitted via a hydraulic channel 40 hydraulically to the clutch 35.
  • the design of the two hydraulic pumps 15, 16 as external gear pumps provides advantages especially at low temperatures, since the external gear pumps then have lower power losses in comparison to other pump concepts.
  • the use of the Oldham coupling 22 provides the advantage that axial and radial misalignment between the drive shaft of the electric motor 18 and the pump shaft 20 can be compensated. Due to the complete integration of the two hydraulic pumps 16 and 15 in the control panel tenanowski 10 additional pump housing and otherwise required hydraulic lines can be completely eliminated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Transmission Device (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

L'invention concerne une commande hydraulique comprenant un système de plaques de commande et un dispositif de transport hydraulique pour déplacer un milieu hydraulique. L'invention est caractérisée en ce que le dispositif de transport hydraulique est intégré au système de plaques de commande.
EP10808974.9A 2009-12-21 2010-12-13 Commande hydraulique Not-in-force EP2516860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009059747 2009-12-21
PCT/DE2010/001456 WO2011076172A2 (fr) 2009-12-21 2010-12-13 Commande hydraulique

Publications (2)

Publication Number Publication Date
EP2516860A2 true EP2516860A2 (fr) 2012-10-31
EP2516860B1 EP2516860B1 (fr) 2014-03-12

Family

ID=44196171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10808974.9A Not-in-force EP2516860B1 (fr) 2009-12-21 2010-12-13 Commande hydraulique

Country Status (4)

Country Link
EP (1) EP2516860B1 (fr)
CN (1) CN102713296B (fr)
DE (2) DE112010004908A5 (fr)
WO (1) WO2011076172A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012214291A1 (de) 2011-09-14 2013-03-14 Schaeffler Technologies AG & Co. KG Hydrauliksteuerung
DE102012216122A1 (de) 2011-10-10 2013-04-11 Schaeffler Technologies AG & Co. KG Fluidische Fördereinrichtung
DE102013203255A1 (de) 2012-03-12 2013-09-12 Schaeffler Technologies AG & Co. KG Fluidsteuerung mit einer Steuerplattenanordnung
DE102017223675B4 (de) 2017-12-22 2023-01-26 Eckerle Technologies GmbH Fluidfördereinrichtung
DE102019107961A1 (de) * 2019-03-28 2020-10-01 Schaeffler Technologies AG & Co. KG Außenzahnradpumpe
DE102019133966A1 (de) 2019-12-11 2021-06-17 Schaeffler Technologies AG & Co. KG Elektromotorisch angetriebener hydraulischer Pumpenaktor
WO2022111757A1 (fr) * 2020-11-24 2022-06-02 Schaeffler Technologies AG & Co. KG Pompe à engrenages
DE102021110892B3 (de) 2021-04-28 2022-09-01 Schaeffler Technologies AG & Co. KG Elektromotorisch angetriebener hydraulischer Pumpenaktor
DE102021116460A1 (de) 2021-06-25 2022-12-29 Bühler Motor GmbH Lageranordnung für einen Pumpenmotor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903814A (en) * 1959-07-30 1962-08-22 Vickers Armstrongs Ltd Improvements in or relating to gear pumps and motors
GB1252746A (fr) * 1967-12-23 1971-11-10
DE4414141A1 (de) * 1994-04-22 1995-10-26 Zahnradfabrik Friedrichshafen Hydraulische Schalteinrichtung für ein mehrgängiges Fahrzeuggetriebe
CN1205415C (zh) * 2002-12-11 2005-06-08 涂雪龙 一种齿轮泵
CN2906137Y (zh) * 2006-05-17 2007-05-30 胡远祥 改进的外啮合齿轮油泵
DE102006025182A1 (de) * 2006-05-30 2007-12-06 Trw Automotive Gmbh Zahnradpumpe, insbesondere für eine Servolenkung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011076172A2 *

Also Published As

Publication number Publication date
CN102713296A (zh) 2012-10-03
CN102713296B (zh) 2015-11-25
DE102010054250A1 (de) 2011-06-22
WO2011076172A2 (fr) 2011-06-30
EP2516860B1 (fr) 2014-03-12
DE112010004908A5 (de) 2012-10-25
WO2011076172A3 (fr) 2012-08-02

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