WO2014187676A1 - Machine à plateau oscillant - Google Patents

Machine à plateau oscillant Download PDF

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Publication number
WO2014187676A1
WO2014187676A1 PCT/EP2014/059416 EP2014059416W WO2014187676A1 WO 2014187676 A1 WO2014187676 A1 WO 2014187676A1 EP 2014059416 W EP2014059416 W EP 2014059416W WO 2014187676 A1 WO2014187676 A1 WO 2014187676A1
Authority
WO
WIPO (PCT)
Prior art keywords
cradle
fictitious
pivoting
swivel
bearing
Prior art date
Application number
PCT/EP2014/059416
Other languages
German (de)
English (en)
Inventor
Matthias Greiner
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2014187676A1 publication Critical patent/WO2014187676A1/fr

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
    • F04B1/20—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
    • F01B3/007—Swash plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/10—Control of working-fluid admission or discharge peculiar thereto
    • F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
    • F01B3/106—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate
    • 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
    • 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
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • 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
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate

Definitions

  • the present invention relates to a swash plate machine according to the
  • Swash plate machines serve as axial piston pumps for converting mechanical energy into hydraulic energy and as axial piston motor for converting hydraulic energy into mechanical energy.
  • Cylinder drum with piston bores is rotatably or rotatably mounted and pistons are arranged in the piston bores.
  • the cylinder drum is rotatably connected to a drive shaft and on a first part of the rotating piston bores temporarily acts a hydraulic fluid under high pressure and a second part of the rotating piston bores temporarily acts a hydraulic fluid under low pressure.
  • a pivoting cradle is around one
  • Swivel axis mounted pivotably and on the pivoting cradle is on a retaining disc with sliding shoes.
  • the pistons are attached to the sliding shoes.
  • the retaining disc with the sliding shoes performs together with the cylinder drum a rotational movement about an axis of rotation and a flat bearing surface of the pivoting cradle is at an acute angle to
  • d. H. with a swivel angle of 0 ° can be from the swash plate machine no mechanical in
  • Pivoting means, the pivot angle of the support surface relative to the Rotation axis, for example, between -20 ° and + 20 ° to be changed and the pivoting bring it a compressive force on the pivoting cradle.
  • the pivoting cradle is on two bearing shells of a housing
  • Swash plate machine is exposed to a greater compressive force than the bearing shell on the fictitious second part of the swash plate machine with the low-pressure opening.
  • the swashplate machine is of a fictional type
  • the two pivoting devices and thus also the two connection points between the pivoting devices and the pivoting cradle are arranged centrally, that is to say in the fictitious sectional plane or center plane, so that the pressure forces applied by the two pivoting devices to the pivoting cradle are distributed uniformly over the two bearing shells.
  • larger forces are applied by the pistons under high pressure to the first part of the swash plate machine than from the pistons to the second part under low pressure, just mentioned uneven pressure forces occur on the two bearing shells and the bearing shell on the first fictitious part of
  • Swash plate machine thus has much greater compressive forces than the bearing shell on the fictitious second part of the swash plate machine.
  • EP 1 013 928 A2 shows an axial piston pump in swash plate construction with a driven circumferential and a plurality of piston bores arranged therein cylinder barrel, wherein in the respective by Webs of separate piston bores are arranged linearly between a bottom dead center and a top dead center movable piston and a low-pressure connection kidney and a high pressure connection kidney having control disk is provided.
  • the CH 405 934 shows a Schrägusionnaxialkolbenpumpe whose non-rotating cylinder block for varying the flow rate in dependence on the delivery pressure is longitudinally displaceable, wherein at the pressed by a spring in the direction of increasing the delivery cylinder block a
  • Control slide unit is attached with a spool.
  • DE 27 33 870 C2 shows a control device for a
  • Oblique disk axial piston pump on each side of the cradle for pivoting the swash plate, each a hydraulically acted upon
  • Control valve spool are controllable and are used to adjust the flow rate of the pump.
  • the swash plate machine has the bearing balls on the pivoting cradle on a fictitious second part, thereby reducing the pressure forces between the cradle and the pivoting cradle on a fictional first part are reduced with a high-pressure opening, however, a machining of the bearing portions of the pivoting cradle due to the pivot arms is expensive and expensive.
  • Swash plate machine as axial piston pump and / or axial piston motor, comprising one rotatable about an axis of rotation or
  • Low pressure opening is divided on the cylinder drum and the force applied by the at least one pivoting device on the pivoting cradle resulting force, in particular due to the formation and / or arrangement of the at least one connection point on the fictitious second part in the pivoting cradle can be introduced to the pressure forces occurring between the Weighing storage and the pivoting cradle to reduce the fictitious first part, wherein the at least one connection point, in particular all connection points, on the pivoting cradle for the at least one
  • Swivel device is designed as a separate component in addition to the rest of the pivoting cradle or are.
  • the resultant of the at least one pivoting device on the pivoting cradle resulting force, in particular total force is applied to the fictitious second part of the pivoting cradle.
  • the indirectly applied by the movably mounted pistons on the pivoting cradle forces are greater on the first fictitious part of the swash plate machine than on the fictitious second part of the swash plate machine, since the located on the fictitious first part of the swash plate machine piston are under high pressure and thereby on the pivoting cradle of the piston is applied to the first part a greater force.
  • the pivoting cradle can first be made without the at least one connection point, in particular first a bearing section on the
  • Pivoting cradle, z. B. with turning and / or grinding are processed, so that the machining tool for the machining initially is not hindered by the at least one connection point. Only after the machining of the at least one bearing section is the at least one connection point, in particular the at least one pivot arm, each with a connection point, connected to the rest of the pivoting cradle.
  • the weighing storage is to the effect
  • the at least one pivoting device is designed as a spindle drive with an electric motor for driving the spindle drive.
  • the at least one connection point on the pivoting cradle for the at least one pivoting device is formed on a respective pivoting arm or a respective pivoting rod, so that the at least one pivoting arm
  • Swivel arm or the at least one pivoting rod is formed as a separate component in addition to the rest of the pivoting cradle and / or applied by the at least one pivoting device on the pivoting cradle resulting force is exclusively on the second part in the pivoting cradle introduced and / or the swashplate machine several
  • Swiveling devices includes and in all pivoting devices, the from the pivoting devices on the pivoting cradle applied resulting forces exclusively on the second part in the pivoting cradle can be introduced.
  • the resulting forces are introduced or can be introduced from all the pivoting devices on the second part, in particular exclusively, into the pivoting cradle, so that all resulting forces applied by the pivoting devices to the pivoting cradle contribute to the uniform application of force to the cradle support.
  • the at least one pivoting arm or the at least one pivoting rod is positively and / or non-positively connected to the rest of the pivoting cradle, in particular with a screw and / or plug and / or press connection, and / or on the rest of the pivoting cradle is at least a recess, in particular a bore, formed and within the bore is a second end region of the at least one
  • the at least one pivot rod arranged to connect the at least one pivot arm or the at least one pivot rod with the rest of the pivoting cradle and / or applied by the at least one pivoting device on the pivoting cradle resulting force is at a distance of at least 0.2 cm, 0, 5 cm, 1 cm, 3 cm, 5 cm, 7 cm, 10 cm or 20 cm to the fictitious sectional plane at the second part in the pivoting cradle can be introduced and / or the at least one connection point is at a distance of at least 0.2 cm, 0.5 cm, 1 cm, 3 cm, 5 cm, 7 cm, 10 cm or 20 cm to the fictitious sectional plane formed on the second part and / or the swash plate machine comprises a plurality of pivoting devices and all pivoting devices are applied to the pivoting cradle resulting Forces at a distance of at least 0.2 cm, 0.5 cm, 1 cm, 3 cm, 5 cm, 7 cm, 10 cm or 20 cm to the fictitious sectional
  • Pivoting means is or are formed at a distance of at least 0.2 cm, 0.5 cm, 1 cm, 3 cm, 5 cm, 7 cm, 10 cm or 20 cm to the notional sectional plane at the second part.
  • the at least one swivel arm or swivel bar is particularly easy and be reliably connected after the machining of the bearing portion with the pivoting cradle.
  • Sectional plane and of the at least one connection point to the fictitious sectional plane less than 1 cm, 3 cm, 5 cm, 7 cm, 10 cm or 20 cm, wherein the distance is aligned perpendicular to the notional sectional plane.
  • the swash plate machine has two pivoting devices, in particular only two pivoting devices, on and / or on the
  • Swivel cradle are two pivot arms or two pivot rods formed and the connection points are formed on a first end portion of the pivot arms or pivot rods and / or at least one connection point, in particular all joints, is or are, in particular exclusively, formed outside the fictitious sectional plane and / or at least a pivot arm or the at least one pivot rod has a first end portion and a second end portion and the first and second end portions are formed at opposite end portions and at the first end portion, the joint is formed and at the second end portion of the at least one pivot arm or the at least one pivot rod the remaining pivoting cradle is connected, in particular is arranged within the recess on the rest of the pivoting cradle.
  • the at least one interface is thus not cut from the fictitious sectional plane.
  • Pivoting means an adjusting piston for applying a compressive force on the at least one connection point and preferably the pressure force is aligned in the direction of the axis of rotation to the pivoting cradle.
  • Swivel device has an adjusting piston, which is acted upon in particular by a hydraulic fluid, and thereby is of the
  • the swash plate machine has a housing and the housing is formed in one or more parts and / or the weighing storage is formed by two bearing shells on soft directly or indirectly depending on a bearing portion of the pivoting cradle and the
  • Bearing shells are preferably arranged separately in the first and second fictitious part of the swashplate machine.
  • the two bearing shells can also be connected to one another by means of a connecting shell of the bearing shell cut from the fictitious sectional plane.
  • the bearing shells are formed on the housing and / or the bearing shells and the at least one bearing portion are formed in a section parallel to the fictitious sectional plane circular segment.
  • a circular segment-shaped design of the bearing shells and the bearing section in the section parallel to the fictitious sectional plane is required to pivotally mount the pivoting cradle about a pivot axis.
  • the weighing storage is designed as a slide bearing.
  • connection point in a fictitious additional sectional plane parallel to the notional sectional plane of the notional additional sectional plane, the at least one connection point, in particular all connection points, on the
  • the weighing storage is designed as a rolling bearing and rolling elements, for example balls or rollers, are arranged between the bearing shell and the bearing sections.
  • the swashplate machine includes a valve disk having the high pressure port and the low pressure port and the valve disk rests on the cylinder drum and preferably the high-pressure opening and the low-pressure opening are kidney-shaped.
  • the high-pressure opening is formed on the first fictitious part and the low-pressure opening is formed on the second fictitious part of the swash plate machine.
  • the valve disc is fixed and does not rotate and is located on the rotating cylinder drum directly or indirectly. As a result, the piston bores formed in the cylinder drum can be acted upon alternately with the hydraulic fluid under high pressure or low pressure.
  • the swashplate machine on a retaining disc and on the retaining disc sliding shoes are fixed on soft each piston is attached, so that the retaining disc together with the shoes the rotational movement of the cylinder drum with the piston performs and the retaining disc on the pivoting cradle indirectly or immediately.
  • Inventive drive train for a motor vehicle comprising at least one swash plate machine for converting mechanical energy into hydraulic energy and vice versa, at least one pressure accumulator, wherein the swash plate machine as one in this patent application
  • the drive train comprises two swash plate machines, which are hydraulically connected to each other and act as a hydraulic transmission and / or the drive train comprises two pressure accumulator ais
  • FIG. 1 is a longitudinal section of a swash plate machine
  • Fig. 2 shows a cross section AA of FIG. 1 a valve disc of
  • Fig. 3 is a perspective view of the pivoting cradle with a
  • FIG. 4 shows a cross section of a pivoting cradle and a bearing shell for
  • Fig. 5 is a bending beam model of the pivoting cradle
  • FIG. 6 shows a drive train for a motor vehicle.
  • a swashplate machine 1 shown in a longitudinal section in FIG. 1 serves as axial piston pump 2 for conversion or conversion of mechanical energy (torque, speed) into hydraulic energy (volume flow, pressure) or as axial piston motor 3 for conversion or conversion of hydraulic energy (volume flow, pressure ) into mechanical energy (torque,
  • a drive shaft 9 is by means of two bearings 10 on a one-piece or multi-part housing 4 of the swash plate machine 1 to a
  • Rotation axis 8 rotatably or rotatably mounted (Fig. 1). With the drive shaft 9, a cylinder drum 5 is rotatably connected, so thereby the
  • Cylinder drum 5 the rotational movement of the drive shaft 9 carries out with.
  • a plurality of piston bores 6 with an arbitrary cross section, for example square or circular, incorporated.
  • the longitudinal axes of the piston bores 6 are substantially parallel to the axis of rotation 8 of the drive shaft 9 or the cylinder drum 5
  • a pivoting cradle 14 is mounted pivotably about a pivot axis 15 on the housing 4. The pivot axis 15 is perpendicular to the
  • the pivoting cradle 14 has a planar or planned support surface 18 for the indirect support of a retaining disk 37, since between the
  • Retaining disc 37 and the support surface 18 of the pivoting cradle 14, an intermediate disc 38 is arranged.
  • the retaining disc 37 is provided with a plurality of sliding shoes 39 and each sliding block 39 is connected to a respective piston 7.
  • Bearing ball 40 (Fig. 1), which is fixed in a bearing cup 59 on the piston 7.
  • Bearing pan 59 are both complementary or spherical, so that in a corresponding movement possibility to each other between the bearing ball 40 and the bearing cup 59 to the piston 7, a permanent connection between the piston 7 and the shoe 39 is present.
  • Washer 38 serves to frictional forces between the rotating retaining disc 37 and the rotationally fixed and non-rotating around the
  • Rotary axis 8 mounted pivoting cradle 14 to reduce. Due to the connection of the piston 7 with the rotating cylinder drum 5 and the
  • the pivoting cradle 14 is - as already mentioned - pivotally mounted about the pivot axis 15 and further comprises an opening 42 (Fig. 1 and 3) for
  • a weighing storage 20 is formed and this weighing storage 20 is shown only dashed due to the sectional formation in Fig. 1. At the weighing storage 20 is a
  • Bearing shell 21 (FIG. 4) is formed, which is formed in a section perpendicular to the pivot axis 15 of FIG. 1 and 4 niksegmentformig.
  • two bearing sections 17 are formed on the pivoting cradle 14, which in This section are circular segment-shaped.
  • the two bearing portions 17 of the pivoting cradle 14 lie on the two bearing shells 21 of the weighing storage 20 directly on.
  • the pivoting cradle 14 is thus pivotably mounted about the pivot axis 15 by means of a slide bearing 22 on the cradle support 20 or the housing 4.
  • the support surface 18 according to the sectional formation in Fig. 1 has a pivot angle ⁇ of approximately + 20 °.
  • the pivot angle ⁇ is between a fictitious plane perpendicular to the axis of rotation 8 and one of the flat bearing surface 18 of
  • the pivoting cradle 14 can be pivoted between a pivoting angle ⁇ between + 20 ° and -20 ° by means of two pivoting devices 24.
  • a notional sectional plane 33 is oriented perpendicular to the pivot axis 15 of the pivot cradle 14 and parallel to and in the axis of rotation 8 of the cylinder barrel 5, d. H. the axis of rotation 8 lies in the fictitious
  • Section plane 33 In Fig. 1, the plane of the drawing corresponds to the notional sectional plane
  • Swash plate machine 1 in a first notional part 34 and a second notional part 35.
  • the first notional part 34 is shown in Fig. 1 above the plane and in Fig. 2 left of the fictitious sectional plane 33 and the second fictitious part 35 is below
  • the two pivoting devices 24 are arranged off-center or not on the fictitious sectional plane 33 or fictitious center plane 34, but on the second fictitious part 35. This means in the sectional view of FIG. 1, the two pivoting means 24 shown only by dashed lines, since they are actually not cut in the section of FIG.
  • the first and second pivoting means 25, 26 as pivoting means 24 are arranged on the second fictitious part 35 and thereby has a
  • the distance 36 is perpendicular to the fictitious sectional plane 33 or represents the minimum distance from the central connection point 32 to the fictitious sectional plane 33.
  • the two pivoting devices 24 each have an adjusting piston 29, which is movably mounted in an adjusting cylinder 30.
  • the adjusting piston 29 or an axis of the adjusting cylinder 30 is aligned substantially parallel to the axis of rotation 8 of the cylinder drum 5.
  • the latter has one
  • the bearing ball 19 is at a
  • Swivel arm 16 (Fig. 1 to 3) of the pivoting cradle 14 is present.
  • the first and second pivoting means 25, 26 is thus connected to a respective pivot ball 19 on a respective pivot arm 16 with the pivoting cradle 14.
  • Junction 32 on the pivoting cradle 14 may be formed as a bearing cup 31 and the connection point 32 on the adjusting piston 29 as a bearing ball 19.
  • Pivoting cradle 14 are pivoted about the pivot axis 15, since a force is applied to the adjusting piston 29 at the open valve 27, 28. It leads not only the pivoting cradle 14, but also the
  • a valve disk 1 1 is located on the end of the cylinder drum 5 shown on the right in FIG. 1, with a kidney-shaped high-pressure opening 12 and a kidney-shaped
  • the piston bores 6 of the rotating cylinder drum 5 are thus fluidly connected in an arrangement on the high-pressure opening 12 with the high-pressure opening 12 and in an arrangement on the
  • Low-pressure port 13 fluidly connected to the low pressure port 13.
  • the high pressure port 12 is at the first fictitious part 34 and the
  • Low pressure port 13 formed on the second fictitious part 35.
  • Piston holes 6 a greater pressure on hydraulic fluid than the piston bores 6 on the second fictitious part 35, which are temporarily in fluid communication with the low-pressure port 13.
  • Bearing shell 21 on the first fictitious part 34 has a larger
  • Connecting points 32 in this case have the distance 36 to the fictitious sectional plane 33 and thereby also has the resulting pressure force F s of
  • the distance 36 of the two connection points 32 is chosen such that the resultant force F L on the two bearing shells 21 in
  • a bending beam model for the pivoting cradle 14 is shown.
  • a bending beam 43 is mounted on two beam bearings 44, which correspond to the two bearing shells 21.
  • the resulting force F L as a bearing force of the two beam bearings 44 is substantially equal.
  • the resulting force (not shown) only that of the piston 7 at the
  • the two pivot arms 16 are formed as a separate component in addition to the rest of the pivoting cradle 14.
  • Swivel arms 16 and pivot bars 16 are formed on a first end portion 61 of the pivot arms 16 and at a second end portion 62 of the pivot arms 16, the pivot arms 16 are in a bore 64th
  • Additional sectional plane 23 parallel to the notional sectional plane 33 intersects both the two bearing balls 19 and the two bearing cups 31, d. H. the two connection points 32, and also the bearing shell 21 on the housing 4 and the bearing portion 17 on the pivoting cradle 14 in the fictitious second part 35.
  • Pivoting cradle 14 at the connection points 32 with the pivoting means 24 thus causes this force no tilting moment of the pivoting cradle 14, so that even in this operating condition, both bearing portions 17 on the pivoting cradle 14 constantly rest on the bearing shells 21 on the housing 4.
  • FIG. 6 an inventive drive train 45 is shown.
  • the drive train 45 according to the invention has an internal combustion engine 46, which drives a planetary gear 48 by means of a shaft 47.
  • Planetary gear 48 two shafts 47 are driven, wherein a first shaft 47 is connected to a clutch 49 with a differential gear 56.
  • a second or other shaft driven by the planetary gear 48 drives a first swash plate machine 50 through a clutch 49, and the first swash plate machine 50 is hydraulically connected by means of two hydraulic lines 52 to a second swash plate machine 51.
  • the first and second swash plate machines 50, 51 thereby form a hydraulic
  • Transmission 60 and of the second swash plate machine 51 can by means of a Shaft 47 and the differential gear 56 are driven.
  • Differential gear 56 drives the wheels 57 with the wheel shafts 58. Furthermore, the drive train 45 has two pressure accumulators 53 as a high-pressure accumulator 54 and as a low-pressure accumulator 55. The two pressure accumulator 53 are not shown by means of hydraulic lines with the two swash plate machines
  • High-pressure accumulator 54 stored hydraulic energy can be driven with a swash plate machine 50, 51 in addition, the differential gear 56.
  • the two pivoting devices 24 are eccentrically formed on the second fictitious part 35 of the swash plate machine 1, thereby characterized by the two bearing shells 21st
  • the plain bearing 22 is thus equipped with a longer life and the cost of producing the swash plate machine 1 can be reduced because the sliding bearing 22 is to be dimensioned only to lower pressure forces.
  • the two bearing sections 17 on the pivoting cradle 14 can be particularly simple in the production

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne une machine à plateau oscillant (1) sous la forme d'une pompe à piston axial (2) et/ou d'un moteur à piston axial (3), comprenant un tambour cylindrique (5) muni d'alésages de piston (6) et monté rotatif ou pivotant autour d'un axe de rotation (8), des pistons (7) montés mobiles dans les alésages de piston (6), un arbre d'entraînement (9) solidaire en rotation du tambour cylindrique (5), une bascule pivotante (14) montée pivotante autour d'un axe de pivotement (15), un palier pour la bascule pivotante (14), au moins un dispositif de pivotement (24), servant à faire pivoter la bascule pivotante (14), qui est relié à la bascule pivotante (14) à chaque fois au niveau d'un point de liaison (32), une orifice à basse pression servant à introduire et/ou évacuer du liquide hydraulique dans les et/ou hors des alésages de piston (6) en rotation, un orifice à haute pression servant à évacuer et/ou introduire du liquide hydraulique hors des et/ou dans les alésages de piston (6) en rotation. La machine à plateau oscillant (1) est divisée en une première partie fictive comportant l'orifice à haute pression sur le tambour cylindrique (5) et une deuxième partie fictive comportant l'orifice à basse pression sur le tambour cylindrique (5) dans une coupe fictive ayant un plan de coupe fictif dans l'axe de rotation (8) du tambour cylindrique (5) et parallèle à celui-ci et perpendiculaire à l'axe de pivotement (15) de la bascule pivotante (14) et la force résultante appliquée par ledit dispositif de pivotement (24) sur la bascule pivotante (14), notamment en raison de la configuration et/ou de la disposition du ou des points de liaison (32), peut être introduite dans la bascule pivotante (14) au niveau de la deuxième partie fictive afin de réduire les forces de compression produites entre le support de bascule et la bascule pivotante (14) au niveau de la première partie fictive. Ledit point de liaison (32) sur la bascule pivotante (14), notamment tous les points de liaison (32), pour le ou les dispositifs de pivotement (24) est ou sont réalisé(s) sous la forme d'un composant distinct (16) en complément du reste de la bascule pivotante (14).
PCT/EP2014/059416 2013-05-24 2014-05-08 Machine à plateau oscillant WO2014187676A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013209724.7A DE102013209724A1 (de) 2013-05-24 2013-05-24 Schrägscheibenmaschine
DE102013209724.7 2013-05-24

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WO2014187676A1 true WO2014187676A1 (fr) 2014-11-27

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PCT/EP2014/059416 WO2014187676A1 (fr) 2013-05-24 2014-05-08 Machine à plateau oscillant

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DE (1) DE102013209724A1 (fr)
WO (1) WO2014187676A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH405934A (de) 1962-07-26 1966-01-15 Weatherhead Co Schrägscheiben-Axialkolbenpumpe
EP0248178A1 (fr) * 1986-06-06 1987-12-09 MAN Nutzfahrzeuge Aktiengesellschaft Véhicule automobile avec un dispositif de propulsion pour unessieu d'arrière
DE2733870C2 (fr) 1976-09-14 1989-07-20 Abex Corp., New York, N.Y., Us
EP1013928A2 (fr) 1998-12-22 2000-06-28 Parker Hannifin GmbH Pompe à pistons axiaux à plateau en biais avec disposif d'amortissement de pulsation
DE102006037690A1 (de) * 2006-08-11 2008-02-14 Robert Bosch Gmbh Axialkolbenmaschine
DE102007030708A1 (de) * 2007-07-02 2009-01-08 Robert Bosch Gmbh Axialkolbenmaschine mit Drosselnut
DE102011116962A1 (de) * 2010-10-30 2012-05-03 Robert Bosch Gmbh Axialkolbenmaschine
DE102012215240A1 (de) 2012-08-28 2014-03-06 Robert Bosch Gmbh Schrägscheibenmaschine

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CH405934A (de) 1962-07-26 1966-01-15 Weatherhead Co Schrägscheiben-Axialkolbenpumpe
DE2733870C2 (fr) 1976-09-14 1989-07-20 Abex Corp., New York, N.Y., Us
EP0248178A1 (fr) * 1986-06-06 1987-12-09 MAN Nutzfahrzeuge Aktiengesellschaft Véhicule automobile avec un dispositif de propulsion pour unessieu d'arrière
EP1013928A2 (fr) 1998-12-22 2000-06-28 Parker Hannifin GmbH Pompe à pistons axiaux à plateau en biais avec disposif d'amortissement de pulsation
DE102006037690A1 (de) * 2006-08-11 2008-02-14 Robert Bosch Gmbh Axialkolbenmaschine
DE102007030708A1 (de) * 2007-07-02 2009-01-08 Robert Bosch Gmbh Axialkolbenmaschine mit Drosselnut
DE102011116962A1 (de) * 2010-10-30 2012-05-03 Robert Bosch Gmbh Axialkolbenmaschine
DE102012215240A1 (de) 2012-08-28 2014-03-06 Robert Bosch Gmbh Schrägscheibenmaschine

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