EP2397694A1 - Unité d'entraînement pour une pompe alternative - Google Patents

Unité d'entraînement pour une pompe alternative Download PDF

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Publication number
EP2397694A1
EP2397694A1 EP11155924A EP11155924A EP2397694A1 EP 2397694 A1 EP2397694 A1 EP 2397694A1 EP 11155924 A EP11155924 A EP 11155924A EP 11155924 A EP11155924 A EP 11155924A EP 2397694 A1 EP2397694 A1 EP 2397694A1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
eccentric
piston
drive unit
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11155924A
Other languages
German (de)
English (en)
Other versions
EP2397694B1 (fr
Inventor
Philippe Drouvot
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.)
Fives Cryomec AG
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Fives Cryomec AG
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Publication date
Application filed by Fives Cryomec AG filed Critical Fives Cryomec AG
Publication of EP2397694A1 publication Critical patent/EP2397694A1/fr
Application granted granted Critical
Publication of EP2397694B1 publication Critical patent/EP2397694B1/fr
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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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly

Definitions

  • the invention relates to a drive unit for a reciprocating pump for cryogenic liquids according to claim 1.
  • the invention particularly relates to a drive unit for a high-pressure reciprocating pump for cryogenic liquids in which the drive unit has on one drive shaft one or more juxtaposed piston housings with reciprocating pistons, which can be actuated by means of connecting rods, wherein the connecting rods are mounted on eccentric parts on the drive shaft.
  • a single piston housing includes a piston drive with only one reciprocating piston, but the juxtaposed piston housing are driven by a single drive shaft. Due to the similarity of the individual piston housings, the total pumping power can of course be easily scaled by connecting a desired number of piston housings in parallel.
  • the piston drive of each piston housing comprises an eccentric member, which is rotatably connected to the drive shaft, and a connecting rod, which is mounted on the eccentric part.
  • the eccentric part which can be pushed onto the drive shaft has eccentric bearing parts formed on both sides.
  • the eccentric bearing parts are in each case with an attachable to the Exzenterlagermaschine Keilringhülse and an attachable to the Exzenterlagermaschine and the Keilringhülsen wedge ring for the purpose of producing the frictional connection on the drive shaft clamped.
  • the prerequisite for reliable operation is, of course, the correct dimensioning of the parts used.
  • the eccentric bearing parts formed on both sides may neither be too thick nor too thin, because otherwise either the necessary traction forces can not be applied or the torsional strength is insufficient. In the following, however, it is assumed that the calculation bases necessary for the dimensioning are well known to the person skilled in the art.
  • Frictional connections in the sense described above, or in structurally similar forms, are generally known (see, for example, Dubbel, paperback for mechanical engineering), such as shrink discs or ring spring sets, which is why such components in principle naturally also be used in alternative construction forms.
  • the frictional connection which can be produced in the mounted or assembled state is preferably achieved in that the eccentric bearing parts can be clamped to the drive shaft in the mounted state with a number of clamping screws per eccentric bearing part which are accessible through the mounting opening.
  • an additional advantage consists in a simplification of the construction in juxtaposed piston housings.
  • it is provided to line the piston housings in such a way and to form each on two opposite sides for receiving axle bearings for the drive shaft in such a way that between two adjacent piston housings only one axle bearing is necessary.
  • the Fig. 1 shows a longitudinal sectional view of a drive unit for a reciprocating pump for cryogenic liquids with three juxtaposed on a drive shaft 1 piston housings 2.
  • a reciprocating piston 3 is actuated by a connecting rod 4 in each piston housing 2.
  • the connecting rod 4 is mounted on an eccentric 5.
  • the eccentric 5 is rotatably connected to the drive shaft 1.
  • the drive shaft 1 drives in the example shown thus simultaneously a number of reciprocating 3.
  • a selectable number of piston housings 2 can be coupled together. Of course, it takes with a larger number of piston housings a longer drive shaft. 1
  • the piston housing 2 is a one-piece, cylindrically shaped, with a Kolbenkopf Desisanteil at one end and integrally formed a crankcase portion of approximately rectangular cross section at the other end.
  • the crankcase portion is penetrated by the drive shaft 1.
  • the crankcase portion each has laterally around feedthrough holes for the drive shaft molded bearing mounts.
  • the axial direction of the lifting piston (H) is perpendicular to the axial direction of the drive shaft (A).
  • the piston housing 2 has a mounting opening 6, which is provided with a cover. 7 is lockable. Through the mounting opening 6 of the reciprocating piston 3 with the connecting rod 4 and the eccentric 5 and fastening means for the eccentric 5 in the piston housing 2 can be inserted or used.
  • the drive shaft 1 is straight, substantially cylindrical and free of formations for positive connection with the can be placed or pushed onto the drive shaft 1 eccentric 5. Wedge connections between the drive shaft 1 and the eccentric 5 are not provided.
  • the drive shaft 1 has a central lubricant supply channel 8 with side channels 8a, which serve to supply the bearings of the connecting rods 4 on the eccentric 5 with lubricant (not shown in detail).
  • roller bearings 9 which are each arranged between two adjacent piston housings 2.
  • the piston housing 2 are designed so that between two adjacent piston housings 2 only one roller bearing 9 is necessary.
  • roller bearings 9 can be used in the previously mentioned bearing receptacles and they are secured with the crankcase located towards Segerringe.
  • the width of the roller bearings is about twice as large as the depth of limited by the Segerringe bearing mount. Thus, the forces transmitted to the roller bearings are absorbed approximately equally by two adjacent piston housings.
  • the bearing mounts are also designed identically on opposite sides of the piston housing 2. In this way, a number of piston housings 2 can be lined up as needed. Constructively redundant storage elements (double, adjacent storage) are thus avoided. The only difference is that the last of the lined-up piston housing 2, a spherical roller bearing 10 instead of the roller bearing. 9 is used. Other types of bearings, such as plain bearings, are basically also applicable.
  • FIG. 1 It can be seen that two adjacent piston housings 2 are non-rotatably connected to one another and aligned by means of at least one locking pin 16.
  • FIG. 1 shows the two end-side bearings, namely, the roller bearing 9 and the spherical roller bearing 10, are clamped with end parts 17 to the respective piston housings 2, whereby the drive shaft (1) is also positioned in the axial direction (A).
  • the spherical roller bearing 10 takes over the leadership of the drive shaft (1) in the axial direction (A).
  • the solution shown here by way of example uses a drive shaft 1 which is matched to the number of juxtaposed piston housings 2.
  • the Fig. 2 clearly shows is how the connecting rod 4 is mounted on the eccentric 5, namely a slide bearing 11, the bearing center is offset by half Hubkolbenhub (b) relative to the drive shaft center.
  • the connecting rod 4 is made in one piece.
  • the connecting rod 4 has a bearing recess corresponding to the bearing recess and can be pushed onto the eccentric part 5.
  • the sliding bearing 11 is supplied via the previously mentioned lubricant supply channel 8 lubricant.
  • the Fig. 3 finally shows a detailed view of the longitudinal section of Fig. 1 in the region of eccentric bearing parts 12.
  • the eccentric bearing parts 12 are integrally formed on both sides on the eccentric part 5.
  • the eccentric bearing parts 12 are thus similar, integral and axially parallel sleeve-like projections on both sides of the eccentric 5.
  • (c) denotes the wall thickness of the Exzenterlagerteils 5.
  • the wall thickness (c) of the Exzenterlagerteils 5 is in the sense of the present invention, because their design must be matched to the requirements of strength in terms of the necessary traction forces and torsional strength.
  • the Exzenterlagermaschine 12 each have a wedge ring sleeve 13 and a wedge ring 14 can be placed.
  • the wedge ring sleeve 13 and the tapered ring 14 have mutually corresponding tapered sliding surfaces.
  • the wedge ring sleeve 13 and the wedge ring 14 can be mutually braced by a number of clamping screws 15. Due to the mutual tension of wedge ring sleeve 13 and wedge ring 14, the clear inner diameter of the wedge ring sleeve 13 decreases and thus causes the necessary forces to produce a producible in the assembled state frictional connection of the Exzenterlagermaschine 12 with the drive shaft 1.
  • the heads of the clamping screws 15 are also accessible via the mounting holes 6 of the piston housing 2.
  • wedge ring sleeve 13 and wedge ring 14 and similarly acting components such as conical seats and / or tapered bushes can be used.
  • the wedge rings 14 may also be formed so that the resulting by the eccentric 5 unbalance can be compensated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Compressor (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)
  • Transmission Devices (AREA)
EP11155924.1A 2010-06-21 2011-02-25 Procédé d'assemblage d'une unité d'entrainement pour une pompe alternative Active EP2397694B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00987/10A CH703354A1 (de) 2010-06-21 2010-06-21 Antriebseinheit für eine Hubkolbenpumpe.

Publications (2)

Publication Number Publication Date
EP2397694A1 true EP2397694A1 (fr) 2011-12-21
EP2397694B1 EP2397694B1 (fr) 2015-08-05

Family

ID=42735552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11155924.1A Active EP2397694B1 (fr) 2010-06-21 2011-02-25 Procédé d'assemblage d'une unité d'entrainement pour une pompe alternative

Country Status (4)

Country Link
EP (1) EP2397694B1 (fr)
JP (1) JP6017122B2 (fr)
CN (1) CN202187877U (fr)
CH (1) CH703354A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016014967A1 (fr) * 2014-07-25 2016-01-28 S.P.M. Flow Control, Inc. Ensemble cadre de puissance pour pompe alternative
USD759728S1 (en) 2015-07-24 2016-06-21 S.P.M. Flow Control, Inc. Power end frame segment
US9695812B2 (en) 2013-03-15 2017-07-04 S.P.M. Flow Control, Inc. Reciprocating pump assembly
US10352321B2 (en) 2014-12-22 2019-07-16 S.P.M. Flow Control, Inc. Reciprocating pump with dual circuit power end lubrication system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103982415B (zh) * 2014-05-28 2016-06-29 浙江欧耀机械有限公司 一种柱塞泵以及压装新工艺
CN106662197A (zh) 2014-06-27 2017-05-10 S.P.M.流量控制股份有限公司 泵传动系统阻尼系统和控制系统及其方法
CN106917855A (zh) * 2015-12-25 2017-07-04 罗凤玲 一种动力传动结构
CN107061216B (zh) * 2017-01-19 2020-07-21 山东科瑞泵业有限公司 一种液氮泵热端

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1009487B (de) * 1955-09-10 1957-05-29 Staiger App G M B H Hochdruckkolbenpumpe mit Exzenterantrieb
DE1937072A1 (de) 1968-07-25 1970-01-29 Gratzmuller Jean Louis Einzylindrige Exzenterpumpe
DE1302968B (de) * 1963-06-15 1971-01-28 Excentra Gmbh Hydraulische Ant Verbindung zwischen dem Kolben einer Exzenterpumpe und einer Kolbenstange
US5259677A (en) 1992-10-26 1993-11-09 The Torrington Company Axially restrained and balanced eccentric bearing
WO1997031191A1 (fr) * 1996-02-23 1997-08-28 Waters Investments Limited Configuration pour ensemble tete de pompe et piston a demontage facile

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4978806U (fr) * 1972-10-24 1974-07-09
JPS5647271U (fr) * 1979-09-18 1981-04-27
JPH08105377A (ja) * 1994-10-06 1996-04-23 Miyoji Suzuki プランジャーポンプにおける吐出量調節装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1009487B (de) * 1955-09-10 1957-05-29 Staiger App G M B H Hochdruckkolbenpumpe mit Exzenterantrieb
DE1302968B (de) * 1963-06-15 1971-01-28 Excentra Gmbh Hydraulische Ant Verbindung zwischen dem Kolben einer Exzenterpumpe und einer Kolbenstange
DE1937072A1 (de) 1968-07-25 1970-01-29 Gratzmuller Jean Louis Einzylindrige Exzenterpumpe
US5259677A (en) 1992-10-26 1993-11-09 The Torrington Company Axially restrained and balanced eccentric bearing
WO1997031191A1 (fr) * 1996-02-23 1997-08-28 Waters Investments Limited Configuration pour ensemble tete de pompe et piston a demontage facile

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9695812B2 (en) 2013-03-15 2017-07-04 S.P.M. Flow Control, Inc. Reciprocating pump assembly
US10393182B2 (en) 2014-07-25 2019-08-27 S.P.M. Flow Control, Inc. Power end frame assembly for reciprocating pump
US10520037B2 (en) 2014-07-25 2019-12-31 S.P.M. Flow Control, Inc. Support for reciprocating pump
USD791192S1 (en) 2014-07-25 2017-07-04 S.P.M. Flow Control, Inc. Power end frame segment
US11746775B2 (en) 2014-07-25 2023-09-05 Spm Oil & Gas Inc. Bearing system for reciprocating pump and method of assembly
US9879659B2 (en) 2014-07-25 2018-01-30 S.P.M. Flow Control, Inc. Support for reciprocating pump
EP3194777A4 (fr) * 2014-07-25 2018-02-21 S.P.M. Flow Control, Inc. Ensemble cadre de puissance pour pompe alternative
US10087992B2 (en) 2014-07-25 2018-10-02 S.P.M. Flow Control, Inc. Bearing system for reciprocating pump and method of assembly
EA033104B1 (ru) * 2014-07-25 2019-08-30 Эс.Пи.Эм. ФЛОУ КОНТРОЛ, ИНК. Рама в сборе, предназначенная для приводной части возвратно-поступательного насоса
US11898553B2 (en) 2014-07-25 2024-02-13 Spm Oil & Gas Inc. Power end frame assembly for reciprocating pump
WO2016014967A1 (fr) * 2014-07-25 2016-01-28 S.P.M. Flow Control, Inc. Ensemble cadre de puissance pour pompe alternative
AU2015292399B2 (en) * 2014-07-25 2018-12-06 S.P.M. Flow Control, Inc. Power frame assembly for reciprocating pump
US11204030B2 (en) 2014-07-25 2021-12-21 Spm Oil & Gas Inc. Support for reciprocating pump
EP3660311A3 (fr) * 2014-07-25 2020-07-29 S.P.M. Flow Control, Inc. Ensemble cadre de puissance pour pompe alternative
US10677244B2 (en) 2014-07-25 2020-06-09 S.P.M. Flow Control, Inc. System and method for reinforcing reciprocating pump
US11421682B2 (en) 2014-12-22 2022-08-23 Spm Oil & Gas Inc. Reciprocating pump with dual circuit power end lubrication system
US10352321B2 (en) 2014-12-22 2019-07-16 S.P.M. Flow Control, Inc. Reciprocating pump with dual circuit power end lubrication system
USD759728S1 (en) 2015-07-24 2016-06-21 S.P.M. Flow Control, Inc. Power end frame segment
USD870156S1 (en) 2015-07-24 2019-12-17 S.P.M. Flow Control, Inc. Power end frame segment
USD870157S1 (en) 2015-07-24 2019-12-17 S.P.M. Flow Control, Inc. Power end frame segment
USD791193S1 (en) 2015-07-24 2017-07-04 S.P.M. Flow Control, Inc. Power end frame segment

Also Published As

Publication number Publication date
EP2397694B1 (fr) 2015-08-05
CN202187877U (zh) 2012-04-11
JP6017122B2 (ja) 2016-10-26
JP2012002225A (ja) 2012-01-05
CH703354A1 (de) 2011-12-30

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