WO2005111495A1 - Pompe de lubrification - Google Patents

Pompe de lubrification Download PDF

Info

Publication number
WO2005111495A1
WO2005111495A1 PCT/EP2005/004367 EP2005004367W WO2005111495A1 WO 2005111495 A1 WO2005111495 A1 WO 2005111495A1 EP 2005004367 W EP2005004367 W EP 2005004367W WO 2005111495 A1 WO2005111495 A1 WO 2005111495A1
Authority
WO
WIPO (PCT)
Prior art keywords
lubricant
hydraulic
piston
pressure
pump according
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.)
Ceased
Application number
PCT/EP2005/004367
Other languages
German (de)
English (en)
Inventor
Zdravko Paluncic
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.)
Lincoln GmbH and Co KG
Original Assignee
Lincoln GmbH and Co KG
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
Priority claimed from DE202004008752U external-priority patent/DE202004008752U1/de
Priority claimed from DE202004019503U external-priority patent/DE202004019503U1/de
Application filed by Lincoln GmbH and Co KG filed Critical Lincoln GmbH and Co KG
Priority to DE112005001039T priority Critical patent/DE112005001039A5/de
Publication of WO2005111495A1 publication Critical patent/WO2005111495A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
    • F16N11/10—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups by pressure of another fluid

Definitions

  • the invention relates to a pump for lubricating at least one lubrication point on a hydraulic device, e.g. on a hydraulic hammer.
  • the object of the invention is to propose such a lubricant pump with a small footprint, inexpensive to manufacture and simple operation.
  • the lubricant pump of the type mentioned at the outset has a base body which has a pressure reducing arrangement, the hydraulic pressure of the hydraulic device after reduction in a certain ratio, possibly via a piston or the like.
  • pressure transmission device, to the lubricant via a hydraulic inlet can be transferred to a lubricant chamber so that the lubricant with a correspondingly lower lubricant pressure can be dispensed from at least one lubricant outlet to at least one lubricant line to the respective lubrication point (s) of the hydraulic device.
  • Such a lubricant pump can be manufactured very compactly at low cost due to its simple structure.
  • the pressure reduction ensures that during the period of operation of the hydraulic device uniform lubrication of the hydraulic device takes place with a lubricant pressure which is correspondingly low compared to the hydraulic pressure of the hydraulic device to be lubricated.
  • the pressure reducing arrangement has a differential piston arrangement of a predetermined reduction ratio, the higher hydraulic pressure of the hydraulic device acting on a control piston with a small effective cross section being transferable to a follower piston having a larger effective cross section acting on the lubricant in a lubricant chamber via the hydraulic inlet.
  • control piston and the follower piston of the differential piston arrangement are advantageously accommodated coaxially in the base body.
  • the reliability of the mode of operation of the control pistons and / or the follower pistons is / is sealingly guided on the walls of the base body.
  • the pressure reducing arrangement has a pressure limiting valve arrangement.
  • the pressure reduction ratio of the pressure reduction arrangement is preferably selected such that the pressure in the lubricant chamber overcomes the flow resistances of the lubricant on the way to the respective lubrication point of the hydraulic device during operation of the hydraulic device.
  • the invented lubricant pump when the hydraulic pressure is between approximately 80 and 140 bar during operation of the hydraulic device, the lubricant pressure is between approximately 5 and 10 bar.
  • the invention further proposes to provide at least one adjustable throttle and / or at least one metering valve in the at least one lubricant outlet in order to be able to regulate or meter the amount of lubricant delivered by the lubricant pump as desired.
  • a further improvement can be achieved in that, when designing the inventive concept, the piston, like the follower piston, works against the effect of a return spring when pressure is applied. This makes refilling the lubricant chamber easier.
  • the lubricant chamber on the trailing side of the piston can be connected to the outside atmosphere via a ventilation device ,
  • the lubricant chamber is preferably filled via a filling device which opens into the lubricant chamber on the feed side of the piston, such as the follower piston. This can be equipped with a full notification facility.
  • the piston like the follower piston, cooperates with an empty signaling device to indicate when the lubricant chamber is empty and has to be refilled.
  • the lubricant chamber on the trailing side of the piston preferably has a return valve for the hydraulic medium.
  • Such an empty indicator device can, for example, have a spring-biased indicator pin, on which the piston, possibly the Foie piston, acts when the lubricant dispensing has ended.
  • a further improvement of the inventive concept results when the lubricant pump is equipped with means for interrupting the hydraulic supply to the hydraulic device as soon as the lubricant chamber is empty. This ensures that the hydraulic device cannot be operated without lubrication.
  • FIG. 2 shows another embodiment of a lubricant pump according to the invention
  • 3 shows a further embodiment of the invention
  • the lubricant pump shown in FIG. 1 has an essentially two-part main body 1.
  • the base body 1 can be attached, for example, via threaded bores 19 to a hydraulic device, such as a hydraulic hammer, whose or its lubrication points are to be lubricated.
  • the upper part 1a of the base body 1 is penetrated by a central bore 4, which forms a hydraulic inlet 4 'for the hydraulic medium of the hydraulic device.
  • the bore 4 extends into a lubricant chamber 5 of the lower part 1b of the base body 1.
  • a cylindrical control piston 2 which can be acted upon by the hydraulic pressure of the hydraulic device, such as the hydraulic hammer, and a differential piston arrangement 2, 3 serving to reduce the pressure - slidably mounted.
  • control piston 2 is sealed against the wall 7 of the bore 4.
  • other pressure transmission devices such as a bellows, can also be considered, on the basis of which the fill level of the chamber 3 can be easily recognized. This also applies accordingly to the embodiments of the invention described below.
  • a cylindrical follower piston 3 of the differential piston arrangement 2, 3, which can be acted upon by the control piston 2, is slidably arranged coaxially to the control piston 2 and against it Wall 8 of the lubricant chamber 5 guided sealingly.
  • the cross section of the follower piston 3 is corresponding the desired pressure reduction or pressure reduction ratio is greater than the cross section of the control piston 2.
  • an external ventilation device 13 In the upper end wall surface of the lubricant chamber 5, an external ventilation device 13, optionally with a filter, opens into the bottom surface of the lubricant chamber 5, a corner duct 15 'of a filling device 15 for lubricant opens.
  • a channel section 15 ′′ branching outward from the corner channel 15 ′ carries a full signaling device 18.
  • This essentially has a spring-preloaded valve ball 18 ′, which lifts off its valve seat as soon as, as is the case when the lubricant chamber 5 is completely filled, the lubricant pressure exceeds a predetermined value.
  • lubricant outlet 6 From the bottom surface of the lubricant chamber 5 also branches off a lubricant outlet 6, which is associated with a throttle 9. With the help of the throttle 9, the lubricant delivery can be regulated.
  • the cross section of the control piston 2 (for example a factor of 10: 1) is significantly smaller than the cross section of the following piston 3, as a result of which the pressure reduction ratio is determined.
  • the hydraulic pressure which is present at the hydraulic inlet 4 during operation is, for example, between 80 and 140 bar
  • the lubricant pressure prevailing in the lubricant chamber 5 is, for example, 10 bar.
  • the pressure reduction ratio and thus the pressure in the lubricant chamber 5 are selected such that the lubricant can be passed through the lubricant outlet 6 with the throttle 9 and the lubricant line connected there against the flow resistance up to the respective lubrication point of the hydraulic device, such as the hydraulic hammer is promoted.
  • the follower piston 3 works against the action of a return spring 11, which in the illustrated case is arranged coaxially with the follower piston 3 on its feed side 14 in the lubricant chamber 5 and on the one hand on the feed side 14 of the follower piston 3 and on the other hand is supported on the bottom surface of the lubricant chamber 5.
  • the return spring 11 serves to relieve the pressure in the lubricant chamber 5 when the hydraulic pressure drops, that is to say when the hydraulic device is switched off.
  • the return spring 11 can also be at least partially received in the follower piston 3 to reduce the block height of the base body 1.
  • a metering valve 10 is provided in the lubricant outlet 6 according to FIG. 2.
  • the metering valve 10 of a known type (for example, EOS ESILUB Oil System from the applicant) is used for more precise metering of lubricant by having a combination of a shuttle valve 22 and a metering disk 23.
  • a metering chamber of the metering valve 10 is filled.
  • the hydraulic pressure applied to the lubricant pump has dropped, the lubricant pressure is reduced so that the metering valve 10 can shift.
  • the follower piston 5 also interacts with an empty alarm device 16.
  • This has an internally pre-stressed colored display pin 17, which is retracted in the retracted position of the follower piston 3 in the base body 1, and correspondingly visibly protrudes out of the base body 1 when the lubricant chamber 5 is completely emptied due to the completely advanced follower piston 3.
  • the lubricant in the lubricant chamber 5 is constantly under the lubricant pressure, with the aid of which the lubricant is conveyed to the lubrication point or the lubrication points.
  • the two types of embodiment shown are based on the principle of introduction.
  • the pump can also be designed as a multi-line pump by providing several lubricant outlets with corresponding throttles or corresponding metering valves on the base body 1.
  • means for interrupting the hydraulic supply of the hydraulic device are provided to ensure the correct operation of the hydraulic device which is to be lubricated. These are effective as soon as the lubricant chamber 5 is empty.
  • the hydraulic supply line of the hydraulic device to be lubricated is led from the hydraulic inlet 4 1 to a hydraulic outlet 4 ′′ across the base body 1 of the lubricant pump, so that the hydraulic medium controls a control chamber 25 delimited by the control piston 2 from the hydraulic inlet 4 ′ to the hydraulic outlet 4 "flows as long as the control piston 2 is not yet in its lowest empty position in the drawing, which it occupies when the lubricant chamber 5 is empty.
  • the control piston 2 then blocks the passage of the hydraulic medium with its upper blocking section 26, so that the operation of the hydraulic preliminary direction is interrupted.
  • the upper end of the bore 4, in which the control piston 2 moves, is provided with a closure 24.
  • FIG. 4a and 4b schematically illustrate, in two orthogonal longitudinal sections, another embodiment of the invention, in which the pressure-reducing arrangement is formed by a pressure-limiting valve arrangement 27, 28 instead of a differential piston arrangement 2, 3.
  • a connection channel 28 which is guided through a corner, branches off from the bore 4 into the (in the drawing upper) end face of the lubricant chamber 5.
  • An adjustable pressure limiting valve 27 acts in the connecting channel 28.
  • the reduced pressure acts on the individual piston 3 1 or the like, which is mounted displaceably in the lubricant chamber 5.
  • the base body 1 is constructed in three parts, an upper part 1a with the bore 4 forming the hydraulic inlet 4 ', the pressure relief valve 27 and the connecting channel 8, the lower part 1b with a filling device 15, 15', an empty signaling device 16 and a full alarm device 18 and a lubricant outlet 6 with throttle 9, and with a central part 1c, which connects the two parts 1a and 1b as a cylindrical tube and forms the outer boundary of the lubricant chamber 5, the parts 1a, 1b and 1c are against each other sealed.
  • the bore 4 opening into the end face of the lubricant chamber 5 on the trailing side of the piston 3 ' has a return valve 29 for the hydraulic medium located behind the piston 3'.
  • the return valve 29 is designed as a spring-biased check valve.

Landscapes

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

Abstract

L'invention concerne une pompe servant à lubrifier au moins un point de lubrification sur un dispositif hydraulique, par exemple sur un marteau à percussion hydraulique, et comprenant un corps de base (1) muni d'un ensemble détendeur (2, 3 ; 27, 28). Après réduction, la pression hydraulique du dispositif hydraulique peut être transmise dans un rapport défini à travers une entrée hydraulique (4') au lubrifiant dans une chambre à lubrifiant (5), éventuellement au moyen d'un piston (3, 3') ou d'un autre dispositif similaire de transmission de pression, de sorte que le lubrifiant, présentant conséquemment une pression de lubrifiant plus faible, peut être amené d'au moins une sortie de lubrifiant (6) à au moins une conduite de lubrifiant allant vers le ou les points de lubrification concernés du dispositif hydraulique.
PCT/EP2005/004367 2004-05-14 2005-04-22 Pompe de lubrification Ceased WO2005111495A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112005001039T DE112005001039A5 (de) 2004-05-14 2005-04-22 Schmierpumpe

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE202004009974 2004-05-14
DE202004009974.8 2004-05-14
DE202004008752.9 2004-06-02
DE202004008752U DE202004008752U1 (de) 2004-05-14 2004-06-02 Schmierpumpe
DE202004019503.8 2004-12-17
DE202004019503U DE202004019503U1 (de) 2004-05-14 2004-12-17 Schmierpumpe

Publications (1)

Publication Number Publication Date
WO2005111495A1 true WO2005111495A1 (fr) 2005-11-24

Family

ID=34993267

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/004367 Ceased WO2005111495A1 (fr) 2004-05-14 2005-04-22 Pompe de lubrification

Country Status (2)

Country Link
DE (1) DE112005001039A5 (fr)
WO (1) WO2005111495A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199653A1 (fr) * 2008-12-22 2010-06-23 SNR Roulements Dispositif portatif de graissage automatique de pièces mécaniques, ensemble et procédé associés
CN104406032A (zh) * 2014-11-24 2015-03-11 玉环沪润机电有限公司 一种多点定量润滑泵

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878115A (en) * 1928-04-12 1932-09-20 Cosse Arthur B De Hydraulic lubricating system
US5086877A (en) * 1989-03-02 1992-02-11 501 Joseph Vogele Ag Lubricant supply limiting device
WO1992003684A1 (fr) * 1990-08-11 1992-03-05 Anthony Kassell Appareil de lubrification
DE4137177A1 (de) * 1990-11-15 1992-05-21 Bohult Maskin Ab Verfahren und vorrichtung zum schmieren einer saegemaschine
EP0525498A2 (fr) * 1991-07-30 1993-02-03 Krupp Maschinentechnik Gesellschaft Mit Beschränkter Haftung Porte-outil d'un marteau à coup actionné par un fluide avec dispositif de graissage
US5285871A (en) * 1992-08-17 1994-02-15 Mechanical Tool & Engineering Co. System for distributing viscous lubricant
US5667037A (en) * 1995-11-06 1997-09-16 Orlitzky; Anton Lubrication system
US6296078B1 (en) * 2000-01-18 2001-10-02 Liu Jobee Axle bearing lubricating device
GB2402182A (en) * 2003-05-29 2004-12-01 Douglas George Anderson Device for dispensing liquids or flowable solids, eg lubricants, over a lengthy period

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878115A (en) * 1928-04-12 1932-09-20 Cosse Arthur B De Hydraulic lubricating system
US5086877A (en) * 1989-03-02 1992-02-11 501 Joseph Vogele Ag Lubricant supply limiting device
WO1992003684A1 (fr) * 1990-08-11 1992-03-05 Anthony Kassell Appareil de lubrification
DE4137177A1 (de) * 1990-11-15 1992-05-21 Bohult Maskin Ab Verfahren und vorrichtung zum schmieren einer saegemaschine
EP0525498A2 (fr) * 1991-07-30 1993-02-03 Krupp Maschinentechnik Gesellschaft Mit Beschränkter Haftung Porte-outil d'un marteau à coup actionné par un fluide avec dispositif de graissage
US5285871A (en) * 1992-08-17 1994-02-15 Mechanical Tool & Engineering Co. System for distributing viscous lubricant
US5667037A (en) * 1995-11-06 1997-09-16 Orlitzky; Anton Lubrication system
US6296078B1 (en) * 2000-01-18 2001-10-02 Liu Jobee Axle bearing lubricating device
GB2402182A (en) * 2003-05-29 2004-12-01 Douglas George Anderson Device for dispensing liquids or flowable solids, eg lubricants, over a lengthy period

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199653A1 (fr) * 2008-12-22 2010-06-23 SNR Roulements Dispositif portatif de graissage automatique de pièces mécaniques, ensemble et procédé associés
FR2940400A1 (fr) * 2008-12-22 2010-06-25 Roulements Soc Nouvelle Dispositif portatif de graissage automatique de pieces mecaniques, ensemble et procede associes
CN104406032A (zh) * 2014-11-24 2015-03-11 玉环沪润机电有限公司 一种多点定量润滑泵

Also Published As

Publication number Publication date
DE112005001039A5 (de) 2007-05-24

Similar Documents

Publication Publication Date Title
EP2053300B1 (fr) Répartiteur d'ouvertures
DE2605175C3 (de) Öldrucksteuerventil für Einleitungs-ölschmieranlagen
EP1631767B1 (fr) Element distributeur pour des systemes de lubrification
DE2231217C2 (de) Hydraulische Steuervorrichtung zur lastunabhängigen Steuerung von hydraulisch betriebenen Einrichtungen
DE1953781A1 (de) Hydraulisches System mit mindestens einer ueber mehrere Pumpen beaufschlagbaren hydraulischen Anlage
DE2533164B2 (de) Hydraulische Steuereinrichtung für ein Hydrauliksystem
DE102014004932B3 (de) Schaltungsanordnung
DE102006054032A1 (de) Steuerungsvorrichtung für ein Getriebe und Verfahren zur Steuerung eines Getriebes
WO2005111495A1 (fr) Pompe de lubrification
EP1320415B1 (fr) Dispositif pour l'application de liquides a pulveriser
EP0499347B1 (fr) Unité centralisée de lubrification
DE1600352B2 (de) Schmiersystem für eine Kraftmaschine
DE19510071A1 (de) Vorrichtung zum Treiben eines Kolbens
DE2420050C3 (de) Vorrichtung zum Zerstäuben von öl in einer Druckluftleitung
DE202004008752U1 (de) Schmierpumpe
DE202004019503U1 (de) Schmierpumpe
DE102017202083A1 (de) Schmiermittelreservoirsystem
DE2942650A1 (de) Selbsttaetig arbeitende ventileinrichtung zur gesteuerten rueckfuehrung von vorgespanntem ruecklauffluid in die leitung zwischen zwei hintereinander geschalteten pumpen, insbesondere fuer die hydraulikkreise von ackerschleppern
DE4329641C2 (de) Straßenmarkierungsmaschine mit Drosselvorrichtung zur Beeinflussung des Markierungsstoffauftrages
AT130193B (de) Zentralschmiervorrichtung.
DE1814863A1 (de) Steuergeraet fuer hydraulische Hubzylinder zum Heban und Senken eines Geraetes
DE2308146A1 (de) Steuereinrichtung fuer den hubzylinder einer schlepperhydraulik
DE2544838A1 (de) Vorrichtung zum entlueften von stroemungsmitteln
DE690156C (de) Hydraulische Aufzugssteuerung
DE1158372B (de) Hydraulisches Steuersystem fuer die gleichbleibende Druckmittelversorgung eines Stellmotors

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1120050010392

Country of ref document: DE

REF Corresponds to

Ref document number: 112005001039

Country of ref document: DE

Date of ref document: 20070524

Kind code of ref document: P

122 Ep: pct application non-entry in european phase