EP1994282A1 - Carter de pompe combiné pour plusieurs grandeurs nominales - Google Patents

Carter de pompe combiné pour plusieurs grandeurs nominales

Info

Publication number
EP1994282A1
EP1994282A1 EP07723155A EP07723155A EP1994282A1 EP 1994282 A1 EP1994282 A1 EP 1994282A1 EP 07723155 A EP07723155 A EP 07723155A EP 07723155 A EP07723155 A EP 07723155A EP 1994282 A1 EP1994282 A1 EP 1994282A1
Authority
EP
European Patent Office
Prior art keywords
hydrostatic piston
bearing
housing
ici
bearing flange
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Withdrawn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
EP07723155A
Other languages
German (de)
English (en)
Inventor
Günter Wanschura
Jürgen GINTNER
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.)
Bosch Rexroth AG
Original Assignee
Brueninghaus Hydromatik GmbH
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 Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP1994282A1 publication Critical patent/EP1994282A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F03C1/0623—Details, component parts
    • F03C1/0628—Casings, housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0602—Component parts, details
    • F03C1/0605—Adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0602—Component parts, details
    • F03C1/0607—Driven means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0644—Component parts
    • F03C1/0647—Particularities in the contacting area between cylinder barrel and valve plate
    • F03C1/0649—Bearing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0644—Component parts
    • F03C1/0652—Cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0644—Component parts
    • F03C1/0663—Casings, housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0644—Component parts
    • F03C1/0668—Swash or actuated plate
    • F03C1/0671—Swash or actuated plate bearing means or driven axis bearing 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
    • 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
    • F04B1/128—Driving 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
    • 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
    • F04B1/14—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 stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/145—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
    • F04B1/2014—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
    • F04B1/2014—Details or component parts
    • F04B1/2078—Swash plates
    • F04B1/2085—Bearings for swash plates or driving axles
    • 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
    • F04C11/003—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle having complementary function
    • 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
    • F04C2/102—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 the two members rotating simultaneously around their respective axes
    • 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
    • F04C2240/70—Use of multiplicity of similar components; Modular construction

Definitions

  • the invention relates according to the preamble of claim 1, a hydrostatic piston machine in swash plate design, which is designed with a housing in cup form, which is the same for at least two nominal sizes of a series.
  • the invention according to the preamble of claim 4 relates to a hydrostatic piston engine in
  • the housing is also designed in a cup shape, wherein it has at its front end to which a drive shaft with external drive elements is connected, a ceiling-shaped bearing flange.
  • Hydrostatic piston machines in swash plate design are known in various construction, for example from DE 196 13 609 Al.
  • a disadvantage of this known hydrostatic piston machine in swash plate type is that the housing is only suitable for one nominal size of a particular design and therefore a separate housing must be made for each nominal size of the series.
  • the invention is therefore based on the object, a
  • the housing is designed as a pot housing, and it can optionally accommodate different engines of different nominal sizes of the hydrostatic machine.
  • the piston engine is suitable for selectively mounting one of two engines of different nominal sizes in a housing which is the same for at least two nominal sizes of a series.
  • the production cost and in the further also the deployment effort is substantially reduced, because for at least two nominal sizes of a series one and the same housing can be used in pot form. Consequently, the production costs can be significantly reduced and simplify storage.
  • the engines can be formed in the context of the invention in each case only by a cylinder drum. But it can also form the cylinder drum with the associated pistons and / or the associated control plate and / or the associated swash plate each have a different engine.
  • the invention is suitable for a hydrostatic
  • Piston machine in particular axial piston machine, both constant and adjustable throughput volume.
  • a preferably hydraulically acted adjustment is provided for pivoting the swash plate, which is arranged in particular in the region between a support surface of the control plate and the ceiling-shaped bearing flange, which forms a pivot bearing for the drive shaft, the bearing flange in a feedthrough hole to the outside penetrated and sealed in the area of the feedthrough hole.
  • the adjusting device is preferably the same for the nominal sizes, so that one and the same adjusting device fits the piston machine designed according to one or the other nominal size.
  • the adjusting device may have an active or adjusting direction, which is directed transversely to the axis of rotation of the engine.
  • the housing is also formed as a pot housing, which is releasably closed by a deckerförmi bearing flange, wherein the feedthrough hole is arranged in the bearing flange, wherein the drive shaft is rotatably supported by a pivot bearing on the bearing flange and the through-hole protrudes, and wherein the bearing flange distributed on a circumference arranged fasteners, which are parts of a fastening device for fastening the piston engine to a support.
  • the invention is based on the finding that considerable loads occur at the housing end of the piston engine on which the drive shaft is in functional use with further drive elements, but these loading forces are to a large extent derived via the fastening elements into the respective carrier of the piston engine , That's why it's at Ensuring sufficient stability possible to arrange the bearing flange at this end of the housing. Although this results in a dividing joint in this end region of the housing, namely between the bearing flange and the edge of the pot housing facing it. However, there is also a sufficient stability of the housing.
  • the piston engine can be assembled or disassembled from this drive-side end of the pot housing, whereby an assembly-friendly arrangement is given.
  • the swash plate on the inside of the bearing flange and to arrange the engine, in particular a control plate with an axially adjacent cylinder drum on the bottom wall of the pot housing. Since in most cases the drive shaft with the cylinder drum is axially displaceable and rotatably connected and the drive shaft protrudes through the swash plate with considerable play, a montageAIe arrangement results from the fact that first the engine with the drive shaft and then the swash plate of the opening of the pot housing forth can be mounted.
  • the embodiment of the invention is also very advantageous for a pivotable mounting of the swash plate on the inside of the bearing flange.
  • the bearing flange side bearing surfaces can be formed or prefabricated in a simple manner on the inside of the bearing flange. When mounting the bearing flange, the bearing surfaces automatically reach their storage position.
  • the outer circular arc portion-shaped concave bearing surface in a relatively flat member, namely the bearing flange, formed, whereby a deep in the interior of the
  • the embodiment of the invention according to claim 4 is particularly suitable in combination with at least two optionally mountable engines of different nominal size, the engines each only by the cylinder barrel or by the associated
  • Control plate and / or swash plate and / or associated piston of different dimensions may be formed.
  • the embodiments of the invention in combination with an end facing away from the bearing flange of the housing, ie in the outer region of the bottom wall of the housing, arranged auxiliary pump, the drive shaft is arranged coaxially and is preferably non-rotatably connected by a positive-locking plug-in connection with the drive shaft of the piston machine ,
  • the pot housing may be formed so that an optional of two auxiliary pumps of different nominal sizes can be mounted.
  • an auxiliary pump or auxiliary pump is preferably in each case a gear pump, wherein in the case of two gear pumps of different sizes, the gear pumps differ by a different axial width.
  • the piston engine is designed so that the cup-shaped housing is suitable for selectively include an associated engine and optionally an associated auxiliary pump, preferably in one case, the smaller nominal sizes and in the other case, the larger nominal sizes are available.
  • the ceiling-shaped bearing flange is adapted to form an adapter to adapt the piston engine to a respective carrier, so that the piston engine to different attachment structures, for. B. from different manufacturers, is customizable. This may be z. B. to different carrier side
  • Such at least two different bearing flanges are thus in each case adapted to the respective fastening and centering elements of the carrier.
  • FIG. 1 is a perspective view of a
  • FIG. 2 shows a section through the embodiment of the piston engine according to the invention.
  • FIG. 3 is a partial sectional view in the region of the bearing cup fixing of the embodiment of the hydrostatic piston machine according to the invention.
  • Fig. 4 is an end view of the hydrostatic piston machine according to the invention.
  • Fig. 5 is a sectional view in which the assembly of an engine and an internal gear pump of different sizes in the same pump housing is recognizable.
  • a bearing flange Ic is centered and screwed to the pot housing Ib.
  • the centering can be done via pins or a centering collar.
  • the flange surface Ia between the bearing flange Ic and the pot housing Ib is sealed to the outside with an O-ring 3 or a flat gasket.
  • the bearing flange Ic includes in its front region a mounting flange Id and the centering collar 2a.
  • two bearing shells 5a are arranged, in each of which a bearing segment 5b is guided with rolling elements.
  • the pivoting cradle 5c is pivotally mounted on the rolling elements of the bearing segments 5b and radially via one each Plant collar 5d guided on the pivoting cradle 5c and the bearing shell 5a.
  • the pivoting cradle 5c could also be arranged pivotably on plain bearing shells which are arranged in the bearing flange 1c.
  • the bearing shells or sliding bearing shells 5a are supported in the circumferential direction on the pot housing Ib and are thus secured against falling out through the pot housing Ib.
  • a central bore region of the bearing flange Ic the front drive shaft bearing 6a and a radial shaft seal 7a are arranged.
  • the front drive shaft bearing 6a is axially fixed in the bearing flange Ic by an abutment collar, not shown, and a locking ring 8.
  • the radial shaft sealing ring 7 is arranged between two securing rings 8, 9.
  • the drive shaft 12 is rotatably supported in a front and rear drive shaft bearing 6a, 6b.
  • Cylinder drum 13 is rotatably and axially movably connected to the drive shaft 12.
  • the engine piston 14, which are arranged axially displaceably in the cylinder drum 13, based on sliding blocks 15 on the Swing cradle 5c off.
  • the pivoting cradle 5c engages via a sliding block 16c in a groove 16b of the adjusting piston 16a of the adjusting device 16.
  • the adjusting device 16, which is arranged in the embodiment transversely to the drive shaft axis 12a, is almost enclosed by the pot housing Ib.
  • Cylinder drum 13 and engine piston 14 are rotated by the drive shaft 12 in rotation. If the swash plate 17 is pivoted relative to the cylinder drum 13 by actuating the adjusting device 16, the engine pistons 14 perform a lifting movement. Upon rotation of the cylinder drum 13 by 360 ° passes through each engine piston 14 a suction and a compression stroke, with corresponding oil flows are generated, their supply and discharge via the control openings in the control plate 18, not shown, the control openings in the pot housing Ib and the Hoch horrin. Low pressure connection done. The control openings in the pot housing Ib are made equal for several nominal sizes of the series of axial piston unit 4.
  • the working ports 19, i. the high-pressure and the low-pressure connection, are executed in the pot housing Ib and in the area between the bearing surface Ie of the control plate 18 and the rear Anflansch measurements If the pot housing Ib arranged.
  • the working ports 19 are designed in a 45 ° position on the pot housing Ib.
  • the mounting surface Ig for a feed pressure filter device intersects the mounting surfaces Ih for the working ports 19 at an angle W of 45 °. Furthermore, the suction port and the tank connections are arranged in the pot housing Ib. In a radial extension 21 in the rear region of the pot housing Ib, an auxiliary pump 22 is arranged.
  • the externally toothed inner rotor 22a of the auxiliary pump 22 is rotatably mounted on a stub shaft 23 and axially movable.
  • the stub shaft 23 is rotatably connected via a toothing 24 and axially movable with the drive shaft 12 and is supported axially via a circular ring 25 on the drive shaft 12 and a collar 23a on the inner rotor 22a of the auxiliary pump 22 from.
  • the stub shaft 23 is rotatably mounted in the pot housing 1 b and in the pump flange 22 c of the auxiliary pump 22.
  • the inner rotor 22a of the auxiliary pump 22 is engaged with an internal gear external rotor 22b of the auxiliary pump 22, which is rotatably disposed in the pump flange 22c of the auxiliary pump 22.
  • suction and pressure side kidneys for the auxiliary pump 22 are formed in the pot housing Ib suction and pressure side connections for the auxiliary pump 22 are formed.
  • the pump flange 22c of the auxiliary pump 22 is fixed in a recess 21 of the pot housing 1b by a cover 26, which is screwed to the rear flange surface If of the cup housing Ib.
  • the axial distance b of the contact surface Ii of the auxiliary pump 22 in the pot housing Ib to the rear Anflansch procedure If the pot housing Ib is the same for at least two nominal sizes of a series of axial piston 4.
  • the required delivery volume of the auxiliary pump 22 is thus realized via correspondingly wide auxiliary pumps 22a, 22b.
  • flanges could also be screwed to the rear flange surface If the pot housing Ib, which allow the cultivation of further axial piston units. On the rear surface If the pot housing Ib no further openings for adjustments are provided.
  • the circular arc portion-shaped curved bearing shells 5a have a transverse distance from each other, wherein in the intermediate space arranged the drive shaft 12 extends through an arranged in the bearing flange Ic feedthrough hole 20 to the outside.
  • the designated in its entirety with 5 pivot bearing for the pivoting cradle 5c and thus also for the swash plate 17 is formed by the circular arc section and concave bearing or sliding bearing surfaces on the bearings 5a and thus in rolling or sliding contact circular arc section shaped convex sliding bearing surfaces on the Front of the pivot cradle 5c formed.
  • the pivoting cradle 5c is positioned with the swash plate 17 by the two bearing collars 5d in the longitudinal direction of the transversely extending pivot axis form fit.
  • the bearing shells 5a are positively supported in their circumferential direction on the pot housing Ib. They extend in the embodiment with their lateral ends to the dividing joint T formed by the flange surface Ia or to the associated contact surface of the bearing flange Ic.
  • the pot housing 1b of the piston machine designed as an axial piston machine can optionally be equipped with an engine 10 or one of two engines 10a, 10b of different nominal size and / or a bearing flange Ic or one of two different bearing flanges IcI, Ic2 and / or equipped with an auxiliary pump 22 or one of two auxiliary pumps 22a, 22b of different nominal size.
  • the installation depth A of the pot housing Ib namely the axial distance between the front flange surface Ia and the contact surface Ie or between the rear contact surfaces of the bearing flange Ic and the voltage applied to the bottom wall of the cup housing Ib control plate 18 is the same.
  • auxiliary pumps 22a, 22b For storage of different width auxiliary pumps 22a, 22b correspondingly axially different cranked cover 26a, 26b are provided, the axial offset difference is denoted by v.
  • the axial dimensions of the auxiliary pumps 22a, 22b are designated by h1, h2.
  • engines 10a, 10b of different nominal size can differ from one another in that the cylinder drums 13a, 13b have different diameters d1, d2, whereby z. B. different sizes cylinder chambers in the cylinder drums 13 a, 13 b can be realized, which are axially bounded by the associated piston 14.
  • the associated control plates 18a, 18b may be identical or of different sizes, see the cross-sectional dimensions or diameters c1, c2.
  • the piston cross-section sizes can also different engines 10a, 10b be the same or different sizes.
  • Two different bearing flanges IcI, Ic2 can be optionally mounted for various reasons.
  • One reason can be z.
  • B. adjustable swash plate 17 provide.
  • different axial positions of the inclined surfaces of the swash plate 17 result, which is illustrated in Fig. 5 by different transverse planes El, E2.
  • an adjusting device 16 is provided which has an actuator 16c extending transversely to the drive shaft axis 12a in the form of a push and pull member which acts on a lever 17a extending from the swash plate 17 on the outside of the associated cylinder drum 13a 13b extends into the interior of the cup housing Ib.
  • different lever lengths e1, e2 result between the connection point with the actuator 16c and the associated plane E1, E2.
  • the bearing flanges IcI, Ic2 may have different axial lengths, the difference in length in Fig. 5 is denoted by Ll.
  • the one or more bearing flanges Ic, IcI, Ic2 can also fulfill the function of an adapter.
  • the or the bearing flanges Ic, IcI, Ic2 on their sides facing the pot housing Ib sides distributed on the circumference arranged fasteners, which with associated fasteners on the pot housing Ib each form a fastening device 11, which is formed in the embodiment by a screw with screws IIb, which screw a rear mounting flange Ij in a particular hole pattern IIa with the pot housing Ib.
  • Fastening elements 32a which cooperate with fastening elements, not shown, on the carrier and form a suggestively illustrated fastening device 32, which is also formed in the embodiment by a screw whose hole pattern 32b may be different, in order to adapt to different hole patterns of the carrier, not shown.
  • the adapter function can z. B. also relate to the centering 2, at the different bearing flanges Ic, IcI, Ic2 with different dimensions, eg. B. different diameters gl, g2 may be formed.
  • different engines 10a, 10b may be mounted on different drive shafts 12a, 12b, the z. B. have different cross-sectional dimensions.
  • corresponding plug-in shafts 23a, 23b of different cross-sectional size are present, which have toothings 24a, 24b which mesh with the toothing of the associated drive shaft 12a, 12b.
  • the drive shaft 12 extends through the rear portion of the pot housing Ib in a through hole 31 with one or two axially spaced bearings.
  • auxiliary lines denoted by LIa, LIb and L2a and L2b in FIG. 5 illustrate the contact points of the engines 10a, 10b and auxiliary pumps 22a, 22b when they are respectively inserted in the pot housing 1b and with the respective control plate 18a, 18b or the associated elements the auxiliary pump 22a, 22b abut against the associated contact surfaces Ie, Ii.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

L'invention concerne un machine hydrostatique à pistons en version à plateau inclinable, dont un groupe propulseur (10) et un plateau inclinable (17) sont reçus dans un carter en forme de creuset (1b). Selon ladite invention, ce carter en forme de creuset (1b) est conçu de façon à pouvoir recevoir des groupes propulseurs (10a, 10b) d'au moins deux grandeurs nominales d'une série spécifique de la machine hydrostatique à pistons.
EP07723155A 2006-03-10 2007-03-09 Carter de pompe combiné pour plusieurs grandeurs nominales Withdrawn EP1994282A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006011273 2006-03-10
DE102006058355A DE102006058355A1 (de) 2006-03-10 2006-12-11 Kombi-Pumpengehäuse für mehrere Nenngrößen
PCT/EP2007/002100 WO2007104496A1 (fr) 2006-03-10 2007-03-09 Carter de pompe combiné pour plusieurs grandeurs nominales

Publications (1)

Publication Number Publication Date
EP1994282A1 true EP1994282A1 (fr) 2008-11-26

Family

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Application Number Title Priority Date Filing Date
EP07723155A Withdrawn EP1994282A1 (fr) 2006-03-10 2007-03-09 Carter de pompe combiné pour plusieurs grandeurs nominales

Country Status (7)

Country Link
US (1) US8608454B2 (fr)
EP (1) EP1994282A1 (fr)
JP (1) JP4820964B2 (fr)
KR (1) KR20080100331A (fr)
CN (1) CN101326364B (fr)
DE (1) DE102006058355A1 (fr)
WO (1) WO2007104496A1 (fr)

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Also Published As

Publication number Publication date
JP4820964B2 (ja) 2011-11-24
US8608454B2 (en) 2013-12-17
WO2007104496A1 (fr) 2007-09-20
DE102006058355A1 (de) 2007-09-13
CN101326364A (zh) 2008-12-17
KR20080100331A (ko) 2008-11-17
JP2009529616A (ja) 2009-08-20
US20090013861A1 (en) 2009-01-15
CN101326364B (zh) 2013-03-20

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