WO2008132107A2 - Dispositif de répartition d'un flux de lubrifiant transporté au moyen d'un flux de gaz - Google Patents

Dispositif de répartition d'un flux de lubrifiant transporté au moyen d'un flux de gaz Download PDF

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Publication number
WO2008132107A2
WO2008132107A2 PCT/EP2008/054906 EP2008054906W WO2008132107A2 WO 2008132107 A2 WO2008132107 A2 WO 2008132107A2 EP 2008054906 W EP2008054906 W EP 2008054906W WO 2008132107 A2 WO2008132107 A2 WO 2008132107A2
Authority
WO
WIPO (PCT)
Prior art keywords
bores
distributor body
lubricant
outlet
inflow
Prior art date
Application number
PCT/EP2008/054906
Other languages
German (de)
English (en)
Other versions
WO2008132107A3 (fr
Inventor
Alexander A. Sen. Rebs
Hermann Schwarze
Original Assignee
Rebs Zentralschmiertechnik 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 Rebs Zentralschmiertechnik Gmbh filed Critical Rebs Zentralschmiertechnik Gmbh
Publication of WO2008132107A2 publication Critical patent/WO2008132107A2/fr
Publication of WO2008132107A3 publication Critical patent/WO2008132107A3/fr

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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
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
    • 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
    • F16N25/00—Distributing equipment with or without proportioning devices
    • 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
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
    • F16N7/32—Mist lubrication

Definitions

  • the invention relates to a device for splitting a lubricant stream conveyed by means of a gas flow, in particular an air flow, with a distributor body which has a plurality of connection bores which are each formed from an inlet bore extending from the one end face of the distributor body and an outflow bore connected to the inflow bore , which opens on a peripheral surface of the distributor body, wherein the connecting bores are divided into groups, which are each associated with an outlet, exiting through each of which a partial flow of the lubricant conveyed by the gas stream.
  • the lubricant to be distributed is driven through the conduits of the system to the respective lubrication points by means of a turbulent flowing gas stream, which in practice is usually an air stream.
  • a turbulent flowing gas stream which in practice is usually an air stream.
  • the lubricant forms a thin film on the conduit walls due to the turbulent gas flow directed coaxially to the conduit path, which has a uniform wave structure. Due to the friction between the adjacent boundary layers of gas and lubricant as well as the impact of the gas flow on the Wellenberge the lubricant film is driven forward, without causing a mixing of the gas with the lubricant.
  • the main advantage of such a transport of lubricant to the lubricating parts is that the transport of even the smallest amounts of lubricant can be carried out regardless of position, in particular unaffected by gravity. This allows exact application of precisely metered lubricant quantities at the respective lubrication point. In this case, if necessary, a larger number of distributors can be connected in cascade one after the other in order to supply a large amount of lubrication points with lubricant introduced through a central supply line.
  • the required total amount of lubricant is first promoted via a single supply line and only shortly before reaching the respective screw holes on the respective lubrication points corresponding number of part streams distributed.
  • a distributor device is known in which the supply line terminates in a cylindrical distribution chamber having a plurality of molded into its peripheral surface, arranged at equal angular intervals symmetrically about the longitudinal axis of the distribution chamber discharge bores. From the outflow holes groups are formed, each associated with an equal number of equiangularly spaced outflow holes.
  • Each group of outflow holes supplies a sampling point. In this way, a uniform distribution of the amount of Schraierstoff is reached on the lubrication points to be supplied.
  • the symmetrical division of the outflow holes ensures that the irregularities caused by the influence of gravity are reduced to a minimum. The larger the number of holes, the better the uniformity of distribution achieved.
  • the object of the invention therefore was to provide a distribution device of the type described above, with the exact distribution of a supplied via a central supply line lubricant flow to at least two unequal part streams is possible.
  • a device according to the invention for dividing a lubricant driven by means of a gas flow, in particular an air flow, has, in accordance with the prior art explained above, a distributor body which has a plurality of
  • connecting bores are each formed from an inflow bore, which starts from the one end face of the distributor body, and an outflow bore, which is connected to the inflow bore and opens onto a circumferential surface of the distributor body.
  • Connection bores are divided into groups, each of which is associated with an outlet, via each of which a partial flow of the conveyed by the air flow lubricant exits.
  • the connecting bores are now associated with the outlets in such a device in such a way that the lubricant substreams emerging from the outlets differ by more than 70%.
  • the distributor body can have an end face in a manner known per se, on which a centrally arranged baffle surface is formed, wherein the inlet openings of the connection bores are arranged around the baffle surface.
  • the lubricant impinging on this baffle surface forms on the baffle surface a film uniformly propagating in the radial direction due to its own kinetic energy, which film is correspondingly distributed uniformly over the connecting bores.
  • the position-independent mounting of a device according to the invention at the same time exactly adjustable division of the lubricant flow to two different streams and simplified manufacturability can, however, be achieved in particular by the fact that the cross sections of the connecting holes are the same, the number of the one outlet associated connection holes differ from the number of the differs from other outlet associated connection holes.
  • the already existing in the known distribution devices Ability to split a lubricant flow evenly among a large number of connection holes.
  • the connecting bores are not supplied in the same number to the respective outlets, but less connection channels are connected to the one outlet than to the other. In this way it is possible to set exactly how much the lubricant partial flow assigned to one outlet differs from the other partial flow.
  • the grading with which this division can be adjusted depends only on the number of available connection holes.
  • Optimized distribution results with the greatest possible exclusion of the influence of gravity are also possible in a device according to the invention in that the inflow bores of the connection bores extend axially parallel to the longitudinal axis of the distribution chamber. This applies in particular when the inflow bores of the connecting bores are arranged distributed at regular angular intervals around the longitudinal axis of the distributor body.
  • the influence of gravity can also be further reduced in a device according to the invention in that at least three connecting bores are assigned to each outlet, wherein the inflow bores of the connecting bores assigned to an outlet should be distributed at regular angular intervals around the longitudinal axis of the distributing body.
  • a simple assignment of the connecting bores to a specific outlet can be made possible by arranging the outflow openings of the connecting bores of the distributor body in each case in the bottom of a circumferential groove formed in the outer circumferential surface of the distributor body.
  • each outlet is associated with only one circumferential groove, which required for the supply of the respective partial lubricant flow production engineering effort can be reduced to a minimum.
  • FIG. 1 shows a device used as a predistributor for distributing a lubricant conveyed by means of an air flow to two outlets in a longitudinal section;
  • Fig. 2 is a used in the apparatus shown in Fig. 1 distributor in a frontal plan view.
  • the device 1 is used for dividing a supplied via a supply line 2 by means of an air flow A lubricant stream S to two outlets 01,02.
  • the device 1 in this case comprises a solid cuboid housing 5, in the left of its in Fig. 1 arranged narrow side 6 ago a cylindrical receiving opening 7 is formed.
  • a first aligned perpendicular to the longitudinal axis L of the receiving opening arranged approximately in the middle third of the length of the receiving opening 7 outlet bore 8 from the receiving opening 7 to the arranged on the bottom in Fig. 1 narrow side 9 of the housing 5 out Ol, while on 1 arranged on the upper narrow side 10 of the housing 5 outlet 02 via a second also aligned perpendicular to the longitudinal axis L, in the rear portion of the receiving opening 7 opening outlet bore 11 is connected to the receiving opening 7.
  • a cylindrically shaped distributor body 12 is inserted, whose outer diameter is smaller by a small undersize than the inner diameter of the receiving opening. 7
  • each other two circumferential grooves 13, 14 are formed in the circumferential surface of the distributor body 2 spaced from each other two circumferential grooves 13, 14 are formed.
  • the circumferential grooves 13,14 are arranged so that when fully inserted into the receiving opening 7 distributor body 12, the first circumferential groove 13 are aligned with the outlet bore 8 and the second circumferential groove 14 in alignment with the outlet bore 11 of the housing 5 are positioned.
  • the width of the circumferential grooves 13,14 is identical and each larger than the diameter of the outlet holes 8,11. Between the circumferential grooves 13,14 and in the conveying direction F of the air flow A with a distance in front of the circumferential groove 13 and behind the circumferential groove 14 is in each case a further around the circumference of the distributor body 12th Molded circumferential groove in each of which a 0- ring seal 15 is located.
  • the O-ring seals 15 bear tightly against the inner surface of the receiving opening 7, so that the sections of the receiving opening 7 assigned to the outlet bores 8, 11 are sealed tightly against one another and the remaining sections of the receiving opening 7 are sealed.
  • inlet bores 16, 17 are formed in the distributor body 12, whose inlet openings 18, 19, 19 ', 19 "are arranged at regular angular intervals ⁇ around a circular baffle surface 21 formed on the front end surface 20 of the distributor body 12.
  • the centers of the inlet openings 18 , 19, 19 ', 19 lie on a common circular path whose center coincides with the center of the baffle 21.
  • the inflow bores 16, 17 are each parallel to one another and parallel to the longitudinal axis of the distributor body 12, which coincides here with the longitudinal axis L of the receiving bore 7. At their end, the inflow bores 16, 17 each pass into an outflow bore 22, 23 which, directed radially outwards, leads to the outer circumferential surface of the distributor body 12.
  • the outlet openings 24, 25 of the outflow bores 22, 23 are in each case positioned in the base area of one of the circumferential grooves 8, 11 of the distributor body 12.
  • Inlet bores 16, 17 each form a connecting bore 26, 27, via which the respective outlet 01, 02 is connected to the supply line 2, with the outflow bore 22, 23 respectively connected to them.
  • In the distribution body 12 are accordingly formed eighteen such connection holes 26,27.
  • the outlet holes 02 associated with the connecting holes 27 are arranged distributed at an angular distance ß of 120 ° about the longitudinal axis of the distributor body 12. Its inflow bore 17 is guided in each case to the level of the circumferential groove 14, so that the outlet opening 25 of the connecting bores 27 lies in the base area of the circumferential groove 14 associated with the outlet O2. In a corresponding manner, the inflow bores 16 of the connection bores 26 extend only up to the height of the circumferential groove 13, so that the outlet openings 24 of the connection bores 26 lie in the base area of the circumferential groove 13 assigned to the outlet oil.
  • a connecting piece 28 is arranged in the receiving opening 7, in which a feed line 29 is formed, which merges into a funnel-shaped recess 30 formed in the end face of the connecting piece 28 assigned to the distributor body 12.
  • the transition 31 from the supply line 29 into the recess 30 is formed sharp-edged, so that along the inner wall of the supply line flowing through the turbulently flowing in the supply line 29 air stream A propelled viscous Lubricant S demolishes droplets at this junction 31 and bounces with high kinetic energy against the baffle 21 at the front end 20 of the distributor body 12.
  • the lubricant S forms there a lubricant film, which flows due to its own high kinetic energy on the baffle 21 in the radial direction to the inlet openings 18, 19, 19 ', 19 "of the connecting holes 26,27.
  • the flow rate of the lubricant on the baffle is so high that the lubricant, even under the influence of gravity K, maintains its flow direction essentially unchanged. If, for example, deviations between the partial flows reaching into the inlet openings 18, 19, 19 ', 19 "occur in the case of particularly viscous lubricants, these equal themselves around the impact surface 21 due to the uniform arrangement of the inlet openings 18, 19, 19', 19" ,
  • the connecting bores 27 assigned to the outlet 02 cause less lubricant to enter the inlet opening 19 of one of the connecting bores 27 due to the influence of gravity than into the inlet opening 19 'and approximately at the level of the longitudinal axis L. the inlet opening 19 "arranged in the lower third of the valve body 12, the influence of the gravitational force K simultaneously leads to the lowest point As a result, the amount of lubricant entering the inlet openings 19 and 19 "is on average also equal to the quantity of lubricant entering the inlet opening 19 '. Accordingly, the distribution result on the average is thus substantially the same for all three inlet openings 19, 19 ', 19 "assigned to the outlet 02. Corresponding compensation takes place at the connection bores 26 assigned to the outlet oil.
  • the opening diameter of the recess 30 is greater than the diameter of the inlet openings 18,19 of the distributor body 12 bounding circle, so that the sip openings 18,19 are fully accessible from the recess 30 from.
  • the receiving opening 7 is sealed.
  • the lid 32 is provided with a passage not shown here and a screw 33, via which the supply line 2 is connected to the supply line 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Nozzles (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

L'invention concerne un dispositif de répartition d'un flux de lubrifiant (S) transporté au moyen d'un flux de gaz, notamment au moyen d'un flux d'air (A), comportant un corps de répartition (12) présentant une pluralité de perçages de connexion (26, 27) respectivement composés d'un perçage d'entrée (16, 17) s'étendant à partir de la première surface frontale (20) du corps de répartition (12), et d'un perçage de sortie (22, 23) connecté au perçage d'entrée (16, 17), aboutissant sur une surface périphérique du corps de répartition (12). Les perçages de connexion (26, 27) sont divisés en groupes respectivement affectés à une sortie (O1, O2) par laquelle s'écoule respectivement un flux partiel (T1, T2) du lubrifiant (S) transporté par le flux de gaz. Le dispositif selon l'invention permet une répartition exacte d'un lubrifiant acheminé par une conduite d'amenée centrale, en au moins deux flux partiels inégaux. A cet effet, les perçages de connexion (26, 27) sont affectés, individuellement ou en groupes, aux sorties (O1, O2), de telle manière que les flux partiels de lubrifiant (T1, T2) quittant les sorties (O1, O2) se différencient de plus de 70 %.
PCT/EP2008/054906 2007-04-25 2008-04-23 Dispositif de répartition d'un flux de lubrifiant transporté au moyen d'un flux de gaz WO2008132107A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007005930.2 2007-04-25
DE200720005930 DE202007005930U1 (de) 2007-04-25 2007-04-25 Vorrichtung zum Aufteilen eines mittels eines Gasstroms geförderten Schmierstoffstroms

Publications (2)

Publication Number Publication Date
WO2008132107A2 true WO2008132107A2 (fr) 2008-11-06
WO2008132107A3 WO2008132107A3 (fr) 2009-06-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/054906 WO2008132107A2 (fr) 2007-04-25 2008-04-23 Dispositif de répartition d'un flux de lubrifiant transporté au moyen d'un flux de gaz

Country Status (2)

Country Link
DE (1) DE202007005930U1 (fr)
WO (1) WO2008132107A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8596419B2 (en) 2008-10-08 2013-12-03 Aktiebolaget Skf Divider device for flow of lubricant and lubrication system
CN111520603A (zh) * 2020-04-24 2020-08-11 安徽省雄峰起重机械有限公司 一种用于起重机保养的润滑装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008005825A1 (de) 2008-01-24 2009-07-30 Eugen Woerner Gmbh & Co. Kg Vorrichtung zum Aufteilen einer Flüssigkeit
DE102012200380B3 (de) * 2012-01-12 2013-04-11 Aktiebolaget Skf Verteilungselement zur Verteilung eines Öl-Luft-Gemisches
EP3543589A1 (fr) * 2018-03-19 2019-09-25 Baier & Köppel GmbH & Co. KG Distributeur de lubrifiant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844650A1 (de) * 1997-09-29 1999-04-22 Nsk Ltd Öl-Luft-Schmiervorrichtung
JP2005076774A (ja) * 2003-09-01 2005-03-24 Nsk Ltd オイルエア潤滑装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844650A1 (de) * 1997-09-29 1999-04-22 Nsk Ltd Öl-Luft-Schmiervorrichtung
JP2005076774A (ja) * 2003-09-01 2005-03-24 Nsk Ltd オイルエア潤滑装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8596419B2 (en) 2008-10-08 2013-12-03 Aktiebolaget Skf Divider device for flow of lubricant and lubrication system
CN111520603A (zh) * 2020-04-24 2020-08-11 安徽省雄峰起重机械有限公司 一种用于起重机保养的润滑装置

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Publication number Publication date
DE202007005930U1 (de) 2007-07-05
WO2008132107A3 (fr) 2009-06-25

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