EP0130912B1 - Mécanisme à plateau oblique, notamment pour la commande d'une pompe - Google Patents

Mécanisme à plateau oblique, notamment pour la commande d'une pompe Download PDF

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Publication number
EP0130912B1
EP0130912B1 EP84401377A EP84401377A EP0130912B1 EP 0130912 B1 EP0130912 B1 EP 0130912B1 EP 84401377 A EP84401377 A EP 84401377A EP 84401377 A EP84401377 A EP 84401377A EP 0130912 B1 EP0130912 B1 EP 0130912B1
Authority
EP
European Patent Office
Prior art keywords
casing
pistons
swash plate
bearing
longitudinal axis
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
Application number
EP84401377A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0130912A1 (fr
Inventor
Francis Mourrier
Roger Badaut
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.)
Areva NP SAS
Original Assignee
Framatome SA
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 Framatome SA filed Critical Framatome SA
Priority to AT84401377T priority Critical patent/ATE29768T1/de
Publication of EP0130912A1 publication Critical patent/EP0130912A1/fr
Application granted granted Critical
Publication of EP0130912B1 publication Critical patent/EP0130912B1/fr
Expired legal-status Critical Current

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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
    • F04B1/14—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
    • 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
    • F01B3/0002—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F01B3/0017—Component parts, details, e.g. sealings, lubrication
    • F01B3/0023—Actuating or actuated elements
    • F01B3/0026—Actuating or actuated element bearing means or driving or driven axis bearing means
    • 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
    • F01B3/0002—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F01B3/0017—Component parts, details, e.g. sealings, lubrication
    • F01B3/0029—Casings, 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
    • F04B1/14—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
    • F04B1/146—Swash plates; Actuating elements
    • F04B1/148—Bearings therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18336—Wabbler type

Definitions

  • the subject of the invention is an oblique plate mechanism which can be used in particular for controlling a pump.
  • Such mechanisms which have been known for a long time, include, inside a casing, a control part rotatably mounted around a longitudinal axis and on which is formed an oblique plate whose axis is inclined relative to the longitudinal axis and bearing on the control part by means of an axial stop.
  • the pump comprises a plurality of pistons distributed around the longitudinal axis and sliding parallel to it in cylindrical bodies formed in a cylinder head fixed on one of the bottom of the housing in the other being placed the mechanism.
  • Each piston is individually connected to the oblique plate, for example by means of an articulated rod and the oblique plate is locked in rotation.
  • the oblique plate is animated by an oscillating movement around the point where its axis of swivel intersects the longitudinal axis of rotation and which therefore constitutes a center of oscillation. Since the oblique plate is locked in rotation, this oscillation movement determines an alternating longitudinal movement of the pistons by means of articulated rods. Longitudinal forces are therefore developed by the pistons between the cylinder head fixed on the rear bottom of the casing and the oblique plate which is supported on the control part, the latter taking support in turn, by means of a stop. axial, on the front bottom of the housing. Thus, all of the forces must be supported by the casing, more particularly by the two bottoms thereof and the side wall which connects them together. When the pump is of high power, the casing must withstand significant efforts and we are led to very heavy and bulky achievements.
  • the subject of the invention is improvements to this arrangement which allow the casing to withstand alternating forces even in the case of a high power pump while retaining a relatively light structure.
  • the two casing bottoms are connected on their periphery by a plurality of additional lateral tie rods parallel to the central axis, bearing on the two casing bottoms and subjected to a prestressing tension capable of compensating for the forces developed by the pistons, in cooperation with the central tie rod, each piston corresponding either to a single lateral tie rod, centered in the radial plane passing through the central axis and the sliding axis of the piston, or to a pair of lateral tie rods placed symmetrically on either side of the corresponding radial plane.
  • the rotary control part bears on the front bottom of the casing along a circumference centered on the longitudinal axis and passing through the axes of the pistons, by means of a circular rib formed on a fixed transverse plate placed at the front end of the central spacer column.
  • FIG. 1 there is shown the assembly of the pump 1 and the control mechanism placed inside a casing 2 and consisting of a control part 3 rotatably mounted around an axis 30 on a column hollow 4 and on which an oblique plate 5 is mounted journalling about an axis 50 inclined at an angle (i) relative to the longitudinal axis 30 and cutting the latter into a center of oscillation 0.
  • the pump 1 is constituted by a plurality of pistons 6 slidingly mounted each along an axis 60 parallel to the longitudinal axis 30, inside cylindrical bodies 61 integral 11 with the pump.
  • each piston 6 is integral with a slide 62 guided along the axis 60 inside a cylindrical body 63.
  • Each slide 62 is connected to the oblique plate 5 by a connecting rod 64 provided with its two ends of two ball joints 65 and 66 for connection, respectively, with the oblique plate 5 and with the slide 62.
  • the oblique plate 5 is mounted swiveling around the axis 50 on a bearing 51 mounted on an inclined bearing 31 formed on the control part 3.
  • the latter is also provided with an inclined bearing surface 32 placed in a plane perpendicular to the axis 50 and on which the oblique plate 5 is supported by means of an axial stop 52.
  • control part 3 is also supported by means of an axial stop 33 on a transverse plate 41 formed at the end of the column 4 opposite the pump 1 and perpendicular to the axis 30, the column 4 bearing also a bearing 34 for axially guiding the control part 3.
  • the centers of the ball joints 65 connecting the connecting rod 64 with the plate 5 are placed at the meeting points of the axes 60 of sliding of the pistons 6 with a plane perpendicular to the inclined axis 50 and passing through the center of oscillation 0, for the two extreme angular positions of the oblique plate for which the axis 50 is in the radial plane passing through the longitudinal axis 30 and the axis 60 of the corresponding piston.
  • the centers of the ball joints 66 for connection with the slides 62 are also placed on the sliding axes 60.
  • the thrust of the pistons 6 is therefore collected by the oblique plate 5 and transmitted to the control part 3 then to the fixed transverse plate 41 respectively by the axial stops 52 and 33.
  • a tie rod 8 which passes inside the tubular central column 4 and is provided at its two ends with support heads 81 and 82, respectively on the rear bottom 21 and on the front bottom 22.
  • the latter in the form of a box in the center of which is placed an axial column 23 which is located in the extension of the spacer column 4 and on which it is supported on the side of the pump.
  • the casing 2 is further provided with a plurality of lateral tie rods 80, placed on its periphery, to take up the forces developed by the pistons each in cooperation with the central tie rod and which are distributed at this effect symmetrically with respect to the radial planes passing through the longitudinal axis 30 and through the axes 60 of the pistons 6.
  • Each piston 6 can therefore correspond either to a single lateral tie rod 83 placed in the corresponding radial plane P, or to two lateral tie rods 85 placed symmetrically on either side of the corresponding radial plane.
  • the casing 2 comprises two upper lateral tie rods 83 centered in the radial planes corresponding to two pistons 6a and 6b while the forces developed by the third piston 6c are taken up, in cooperation with the central tie rod 8, by two other lower tie rods 85 placed symmetrically on either side of the corresponding radial plane P 1 .
  • each tie rod 80 is provided at its ends with heads 87 bearing on the external faces of the two bottoms 21, 22 of the casing and pass through a spacer column 24 constituting the casing and interposed between the two bottoms so as to prevent them coming together under the action of the prestressing tension when the thrust of the corresponding piston does not s does not work in reverse.
  • the prestressing tensions and consequently the cross sections of the tie rods will be determined as a function of the forces developed by the pistons and of the distances from the axes 60 of the latter relative to the lateral tie rods 80 and to the central tie rod 8.
  • the entire casing 2 is in mechanically welded construction and, thanks to the solutions adopted, can be relatively light.
  • Each bottom has the shape of a box made up of transverse plates connected by spacers. These are constituted by the central column 23 and by the lateral columns 24 in the case of the rear bottom 21 which constitutes the fixed base of the installation on which the pump 1 is fixed on one side and the control mechanism 3, 4, 5.
  • the front bottom 22 is formed of a box consisting of two side plates connected together by spacer walls 25 placed around orifices 26 for passage of the tie rods 80, in the extension of the walls of the columns 24 of the corresponding tie rod.
  • the cylinder head 1 is advantageously provided with a fixing plate 12 which is applied to the external face 27 of the rear bottom 21 and on which the heads of the central tie rod 8 and of the lateral tie rods 80 rest, which pass through holes in the plate 12.
  • This arrangement therefore makes it possible to easily dismantle, by loosening the tie rods, the assembly of the pump 1.
  • the hydraulic body casing assembly therefore forms a pre-stressed rigid block, easily removable, and well resistant to strong internal thrusts of the pistons.
  • the axial support of the control mechanism on the front bottom 22 takes place along a circumference centered on the longitudinal axis 30 and of radius R equal to the distance between the axis 30 and axes 60 of the pistons.
  • the transverse plate 41 is provided, on the bottom side 22, with a circular support rib 44 having an average radius equal to R.
  • a disc 25 forming a shim is thick interposed between the support rib 44 and the internal face of the front bottom 22 and the central column 4 rests on the end of the axial column 23 of the front bottom 21 by means of an adjustable stop which can be constituted for example by a nut 45 screwed onto a thread formed at the end of the column 4 facing the pump 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP84401377A 1983-07-01 1984-06-28 Mécanisme à plateau oblique, notamment pour la commande d'une pompe Expired EP0130912B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401377T ATE29768T1 (de) 1983-07-01 1984-06-28 Schiefscheibentriebwerk, insbesondere fuer der antrieb einer pumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8310962A FR2548284B1 (fr) 1983-07-01 1983-07-01 Mecanisme a plateau oblique, pour la commande d'une pompe
FR8310962 1983-07-01

Publications (2)

Publication Number Publication Date
EP0130912A1 EP0130912A1 (fr) 1985-01-09
EP0130912B1 true EP0130912B1 (fr) 1987-09-16

Family

ID=9290399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401377A Expired EP0130912B1 (fr) 1983-07-01 1984-06-28 Mécanisme à plateau oblique, notamment pour la commande d'une pompe

Country Status (9)

Country Link
US (1) US4584927A (ja)
EP (1) EP0130912B1 (ja)
JP (1) JPS6035186A (ja)
AT (1) ATE29768T1 (ja)
BR (1) BR8402981A (ja)
CA (1) CA1235022A (ja)
DE (1) DE3466270D1 (ja)
FR (1) FR2548284B1 (ja)
SU (1) SU1329628A3 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720648A (zh) * 2012-05-29 2012-10-10 华中科技大学 一种全深度浮力调节海水泵

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619166B2 (fr) * 1985-10-14 1990-02-02 Drevet Michel Machine rotative a pistons et a barillet avec rotule de centrage fixe
FR2588617B1 (fr) * 1985-10-14 1989-11-24 Drevet Michel Machine rotative a pistons et a barillet avec rotule de centrage fixe.
ES2018627B3 (es) * 1987-08-06 1991-04-16 Michel Drevet Maquina giratoria de pistones y tambor con rotulo de centrado fijo.
JPH0737729Y2 (ja) * 1988-10-12 1995-08-30 岩田塗装機工業株式会社 建築吹付材用圧送式吹付ガン
DE4039926C2 (de) * 1990-09-19 1994-08-11 Elektra Beckum Ag Axialkolbenpumpe, insbesondere für Wasser-Hochdruckreiniger
US6354186B1 (en) 1998-12-08 2002-03-12 Caterpillar Inc. Hydrostatic thrust bearing for a wobble plate pump

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1781068A (en) * 1921-04-29 1930-11-11 Michell Crankless Engines Corp Fluid motor and pump
CH130964A (fr) * 1928-02-15 1929-01-15 Tubize Artificial Silk Company Pompe à plusieurs cylindres.
DE527635C (de) * 1929-03-11 1931-06-20 John Frederick Nevinson Craig Kuehlvorrichtung fuer Kolbenmaschinen, insbesondere Luftkompressoren
US2095316A (en) * 1934-12-14 1937-10-12 Watson Stillman Co Pump
DE680810C (de) * 1936-02-18 1939-09-07 Teves Kg Alfred Kolbenpumpe
US2141935A (en) * 1936-11-17 1938-12-27 Waterbury Tool Co Power transmission
US2474396A (en) * 1945-03-01 1949-06-28 Gen Motors Corp Injection pump
US2498679A (en) * 1948-07-12 1950-02-28 Edwin S Hall Starplate mechanism
US3006324A (en) * 1960-10-06 1961-10-31 American Brake Shoe Co Reciprocatory piston engines
FR1303796A (fr) * 1962-10-01 1962-09-14 Pompe rotative à pistons à débit variable réglable
US3726609A (en) * 1970-01-30 1973-04-10 Applied Power Ind Inc Load controller
GB1414997A (en) * 1971-11-29 1975-11-26 Boyle B A Rotating cylinder block pump
FR2211090A5 (ja) * 1972-12-14 1974-07-12 Creusot Loire
JPS5226601A (en) * 1975-08-27 1977-02-28 Hitachi Ltd Fixing device for pump cover
JPS5235881A (en) * 1975-09-16 1977-03-18 Matsushita Electric Works Ltd Contact switch
US4101250A (en) * 1975-12-29 1978-07-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash plate type compressor
FR2461127A1 (fr) * 1979-03-30 1981-01-30 Creusot Loire Pompe alternative
DE3014552C2 (de) * 1980-04-16 1986-06-26 Paul 4740 Oelde Hammelmann Hydraulische Antriebsvorrichtung für eine Axialkolbenpumpe
JPS59222B2 (ja) * 1980-08-25 1984-01-05 ジエクス株式会社 乳首用栓
FR2506857A1 (fr) * 1981-05-27 1982-12-03 Creusot Loire Mecanisme a barillet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720648A (zh) * 2012-05-29 2012-10-10 华中科技大学 一种全深度浮力调节海水泵
CN102720648B (zh) * 2012-05-29 2014-12-10 华中科技大学 一种全深度浮力调节海水泵

Also Published As

Publication number Publication date
ATE29768T1 (de) 1987-10-15
FR2548284B1 (fr) 1987-10-23
JPS6035186A (ja) 1985-02-22
SU1329628A3 (ru) 1987-08-07
DE3466270D1 (en) 1987-10-22
US4584927A (en) 1986-04-29
BR8402981A (pt) 1985-05-28
FR2548284A1 (fr) 1985-01-04
EP0130912A1 (fr) 1985-01-09
CA1235022A (fr) 1988-04-12

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