EP2324201A1 - Rotary machine with pistons and a turret - Google Patents
Rotary machine with pistons and a turretInfo
- Publication number
- EP2324201A1 EP2324201A1 EP09786992A EP09786992A EP2324201A1 EP 2324201 A1 EP2324201 A1 EP 2324201A1 EP 09786992 A EP09786992 A EP 09786992A EP 09786992 A EP09786992 A EP 09786992A EP 2324201 A1 EP2324201 A1 EP 2324201A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- thrust plate
- rotary machine
- spherical bearing
- 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
Links
Classifications
-
- 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
- F01B3/02—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis with wobble-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
- F01B3/0002—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
-
- 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
Definitions
- the present invention relates to a rotary machine with pistons and barrel of the type of those which comprise: a frame traversed by a shaft mounted fixed relative to the frame,
- reaction rod whose first end is connected to the frame and a second end is connected to the swash plate
- This machine uses an oscillating plate guided by a spherical bearing whose reliability needs to be improved. It is found that the lubrication of the spherical bearing is difficult to ensure completely satisfactory which has a negative impact on the life of the machine.
- the object of the invention is, above all, to provide a rotary machine having an improved service life and which can be used in an axial piston pump for many types of fluid and with high reliability.
- a rotary machine with pistons and barrel of the kind in question is characterized in that the ball comprises a male spherical bearing rotatably mounted relative to the shaft and in that the rotary machine comprises a drive means in rotation of the male spherical bearing around the geometric axis x-x '.
- the present invention thus relates to a rotating machine with pistons and barrel, with a swash plate mounted on a central female spherical bearing, a machine remarkable in that the female bearing oscillates around a male spherical bearing which is itself rotated, in the essential purpose of obtaining that the lubrication of a bearing with spherical bearing becomes as easy and as reliable as lubricating a bearing with a cylindrical bearing.
- the rotational drive means of the male spherical bushing may comprise a means of rotationally connecting the male spherical bearing with the thrust plate.
- the thrust plate and the male spherical bearing are mounted on the same sleeve rotatably mounted on the shaft and constituting the means of connection in rotation.
- the sleeve is rotated by the thrust plate and the male spherical bearing can be rotated by the sleeve, via keys.
- the sleeve can be guided in rotation relative to the shaft by means of needle bearings.
- a roller thrust axes parallel to the bearing surface of the swash plate on the thrust plate, can be disposed between the thrust plate and the swash plate.
- the thrust plate may be integral with a toothed wheel driven by a pinion integral with an input shaft.
- the axis x-x ', a second axis yy' of rotation of the swash plate relative to the thrust plate and a third axis zz ⁇ orthogonal defining the possibilities of rotation of the female spherical bearing relative to the spherical bearing male are convergent in the center (O) of the male spherical bearing (10), thus allowing the perfect balancing of the machine's tilt-and-turn mechanism to zero.
- FIG. 1 is an axial vertical section of a rotary machine according to the invention
- FIG. 2 is a section of the rotary machine of FIG. 1 according to line A-
- FIG. 1 and FIG. 2 shows a swash plate pump 15 comprising a frame 2 traversed by a shaft 1, of geometric axis x-x ', mounted fixed relative to the frame 2.
- the frame 2 comprises a lid 2b located between a flange 2a and a
- the hollow shaft 1 is held in fixed position in the casing 2 by a threaded rod 3 and its two nuts 4 and 5.
- a thrust plate 9 is rotatably mounted on the shaft 1.
- the face of the blade 9 facing the barrel 25 is inclined, at an angle less than 90 °, on the axis xx 1 .
- Needle bearings 7 and 8 provide radial guidance of a sleeve 6.
- the sleeve 6 is rotated by the plate 9 via a fixed key 6a.
- a thrust cylindrical roller 17, interposed between the plate 9 and the flange 2a of the frame 2, allows to collect the axial forces.
- a toothed wheel 11 is fixed to the periphery of the plate 9 by means of pins 11a.
- An input shaft 12, rotatably mounted relative to the frame 2 parallel to the axis 1, comprises a pinion 13 which meshes with the wheel 11.
- a swash plate 15 is integral with a female spherical bearing 14 articulated around a male spherical bearing 10 of center O located on the axis x-x '.
- the male spherical bearing 10 is rotated about the x-x 'axis by the sleeve 6 via a sliding key 6b.
- the use of the key 6b makes it possible to prohibit the transmission of axial forces.
- the pad 10 is traversed by the sleeve 6.
- a cylindrical roller thrust bearing 16 whose geometric axis of rotation yy 'forms an angle ⁇ which is not zero with respect to the first axis x-x', is interposed between the swash plate 15 and the thrust plate 9.
- An axial stop 6c is integral with the end of the sleeve 6 and the elastic washers
- the axial forces are transmitted to the male spherical bearing 10, to the female spherical bearing 14, to the swash plate 15 and then to the thrust plate 9 via the roller stop 16.
- the thrust plate 9 is even in abutment on a shoulder 6e provided at the end of the sleeve 6.
- the shoulder 6e also makes it possible to secure the sleeve 6 and the thrust plate 9 by means of fastening screws (not shown).
- mounting the thrust plate 9 on the sleeve 6 is by a tight assembly in addition to the key 6a.
- a reaction rod 18 (Fig. 2) is set up to prevent rotation of the oscillating pad 15 about the axis xx 'while allowing it to oscillate.
- a first end of the reaction rod 18 is articulated to the frame 2 and a second end is articulated to the swash plate 15.
- the bielie reaction 18 is articulated in a low spherical bearing 23 fixed in the pump frame and in a high spherical bearing 24 fixed on the swash plate 15.
- a connecting rod 19 is connected to the swash plate 15 by a spherical bushing 21.
- the connecting rod 19 is connected by a bush 20 to a butt 22, to which is fixed the piston (not shown) of the pump.
- the piston is thus animated with a reciprocating rectilinear movement relative to the barrel 25, which allows the pumping.
- the operation is as follows.
- the input shaft 12 drives the pinion 13 in rotation.
- the pinion 13 meshes with the wheel 11 which rotates the thrust plate 9 by means of the pins 11a.
- the thrust plate 9 rotates the sleeve 6 by means of your key 6a.
- the sleeve 6 rotates the male spherical bearing 10.
- the swash plate 15 bears on the inclined surface of the thrust plate 9 via the cylindrical roller stop 16.
- the spherical pad 14 is animated with an oscillating movement while the male spherical pad 10 is driven in a rotational movement around the axis xx '.
- the lubrication of the spherical male / female bearings 10 and 14 is here as easy and as reliable as to ensure the lubrication of a cylindrical bush as a point of the female sphere with respect to a point of the male sphere described a locus of geometry according to a "sinusoidal creeping trajectory" with a large and continuous linear velocity, which is good for preserving the oil film.
- the lubrication is improved which has a positive impact on the life of the machine.
- the axis ZZ ' is orthogonal to the axis y'-y' and defines therewith the possibilities of rotation of the female spherical bearing 14 relative to the spherical bearing maie 10. It is noted that the axes xx ', yy' and zz 'are here exactly convergent, in the center O 1 thus ensuring a perfect oscillation around the point O and thus allowing the perfect zero balancing of the oscilio-rotating mechanism of the machine.
- the pumped liquid is completely isolated from the space where the pads 10 and 14 are, the pumped liquid can be charged with solid particles without inconvenience to the pads. This arrangement is particularly interesting for pumps used during drilling, especially oil.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0804916A FR2935735B1 (en) | 2008-09-08 | 2008-09-08 | ROTATING MACHINE WITH PISTONS AND BARREL |
PCT/IB2009/053685 WO2010026505A1 (en) | 2008-09-08 | 2009-08-21 | Rotary machine with pistons and a turret |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2324201A1 true EP2324201A1 (en) | 2011-05-25 |
EP2324201B1 EP2324201B1 (en) | 2015-06-24 |
Family
ID=40674220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09786992.9A Not-in-force EP2324201B1 (en) | 2008-09-08 | 2009-08-21 | Rotary machine with pistons and a turret |
Country Status (9)
Country | Link |
---|---|
US (1) | US9010235B2 (en) |
EP (1) | EP2324201B1 (en) |
CN (1) | CN102149900B (en) |
BR (1) | BRPI0918847A2 (en) |
CA (1) | CA2734983C (en) |
ES (1) | ES2545085T3 (en) |
FR (1) | FR2935735B1 (en) |
RU (1) | RU2492326C2 (en) |
WO (1) | WO2010026505A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5687257B2 (en) * | 2012-09-04 | 2015-03-18 | 川崎重工業株式会社 | Fuel pump |
CN107882983A (en) * | 2016-09-27 | 2018-04-06 | 惠州科赛医疗有限公司 | A kind of piston structure |
CN110067692B (en) * | 2019-03-13 | 2024-06-28 | 上海强田驱动技术有限公司 | Duplex axial plunger motor |
US11826891B2 (en) | 2019-10-21 | 2023-11-28 | Makita Corporation | Power tool having hammer mechanism |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR440808A (en) * | 1912-03-01 | 1912-07-22 | Maschb Actiengesellschaft Balc | Tray for fluid transmissions |
US2406291A (en) * | 1943-09-09 | 1946-08-20 | Edwin S Hall | Steam engine |
FR1104109A (en) * | 1954-04-28 | 1955-11-16 | Rech S Etudes | Further development of piston fluid pumps or motors |
US3223042A (en) * | 1963-06-14 | 1965-12-14 | Frank Wheatley Corp | Multi-piston variable stroke pump |
FR2211090A5 (en) * | 1972-12-14 | 1974-07-12 | Creusot Loire | |
SU653422A1 (en) * | 1977-04-11 | 1979-03-25 | Ленинградский Ордена Красного Знамени Механический Институт | Axial-plunger hydraulic machine |
JPS59221480A (en) * | 1983-05-31 | 1984-12-13 | Showa Seiki Kogyo Kk | Reciprocating type oil-free gas compressor |
FR2588617B1 (en) | 1985-10-14 | 1989-11-24 | Drevet Michel | ROTARY PISTON AND BARREL MACHINE WITH FIXED CENTERING BALL JOINT. |
SU1634817A1 (en) * | 1989-01-02 | 1991-03-15 | Кировоградский Завод Гидравлических Силовых Машин "Гидросила" Им.Хху Съезда Кпсс | Piston group of axial-piston hydraulic machine |
CN1066520C (en) * | 1996-06-06 | 2001-05-30 | 周海威 | Straight shaft plunger mud pump |
KR20090126299A (en) * | 2007-03-08 | 2009-12-08 | 인터디지탈 테크날러지 코포레이션 | Balancing paging load and assigning tracking area updates |
-
2008
- 2008-09-08 FR FR0804916A patent/FR2935735B1/en not_active Expired - Fee Related
-
2009
- 2009-08-21 WO PCT/IB2009/053685 patent/WO2010026505A1/en active Application Filing
- 2009-08-21 BR BRPI0918847A patent/BRPI0918847A2/en not_active IP Right Cessation
- 2009-08-21 CA CA2734983A patent/CA2734983C/en not_active Expired - Fee Related
- 2009-08-21 EP EP09786992.9A patent/EP2324201B1/en not_active Not-in-force
- 2009-08-21 RU RU2011113542/06A patent/RU2492326C2/en not_active IP Right Cessation
- 2009-08-21 CN CN2009801348071A patent/CN102149900B/en not_active Expired - Fee Related
- 2009-08-21 ES ES09786992.9T patent/ES2545085T3/en active Active
- 2009-08-21 US US13/062,639 patent/US9010235B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2010026505A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2935735A1 (en) | 2010-03-12 |
CN102149900B (en) | 2013-04-17 |
CN102149900A (en) | 2011-08-10 |
FR2935735B1 (en) | 2010-09-10 |
WO2010026505A1 (en) | 2010-03-11 |
US9010235B2 (en) | 2015-04-21 |
RU2492326C2 (en) | 2013-09-10 |
BRPI0918847A2 (en) | 2015-12-08 |
RU2011113542A (en) | 2012-10-20 |
ES2545085T3 (en) | 2015-09-08 |
CA2734983C (en) | 2014-10-07 |
CA2734983A1 (en) | 2010-03-11 |
EP2324201B1 (en) | 2015-06-24 |
US20110232476A1 (en) | 2011-09-29 |
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