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WO2018073014A1 - Coussinet, en particulier coussinet lisse - Google Patents

Coussinet, en particulier coussinet lisse Download PDF

Info

Publication number
WO2018073014A1
WO2018073014A1 PCT/EP2017/075357 EP2017075357W WO2018073014A1 WO 2018073014 A1 WO2018073014 A1 WO 2018073014A1 EP 2017075357 W EP2017075357 W EP 2017075357W WO 2018073014 A1 WO2018073014 A1 WO 2018073014A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing bush
recess
opening
pump
bore
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/EP2017/075357
Other languages
German (de)
English (en)
Inventor
Gerhard Meier
Alexander Platzer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2018073014A1 publication Critical patent/WO2018073014A1/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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/80—Shaping by separating parts, e.g. by severing, cracking
    • F16C2220/84—Shaping by separating parts, e.g. by severing, cracking by perforating; by punching; by stamping-out

Definitions

  • the invention relates to a bearing bush, in particular plain bearing bush, according to the preamble of claim 1.
  • Such a bearing bush in the form of a plain bearing bush is through
  • This plain bearing bush has a plurality of radial
  • a plurality of elongate recesses in the form of grooves are formed in the inner shell of the bearing bush.
  • the grooves form recesses in the inner shell of the bearing bush and can be introduced by etching, engraving, electrical erosion, machining or galvanic treatment.
  • the radial openings open into the grooves in the inner shell of the bearing bush and the grooves form a system for distributing the
  • the bearing bush according to the invention with the features of claim 1 has the advantage that it is simple and inexpensive to produce, since the at least one recess is formed as the bearing bush penetrating opening, which can be easily introduced into the bearing bush. In addition, there are no problems from the influence of Tolerances with different depth of the recess and from it
  • the installation of the bearing bush in a receptacle provided for this purpose is also simplified because, because of the elongate recess, no exact alignment of the rotational position of the bearing bush in the receptacle with respect to a supply of lubricant opening into the receptacle is required.
  • FIG. 1 shows a
  • Bearing bush in perspective view, Figure 2 shows a bearing bush forming body in an initial state and Figure 3 shows a pump in which the bearing bush is installed.
  • the bushing 10 is for example cylindrical in shape and is preferably made of a flat plate-shaped body 12 shown in Figure 2, which is rolled into the required cylindrical shape.
  • the body 12 may be made of metal, for example, and may be made by punching from a strip material.
  • the body 12 may on its in the finished rolled state, the inner shell of the bearing bush 10 forming
  • the coating 14 has the best possible sliding properties such as low coefficient of friction, high wear resistance and preferably also good dry-running properties in the absence of lubricant.
  • the bushing 10 has at least one over its entire surface this completely penetrating elongated opening 16, which is formed for example in the form of a slot.
  • the opening 16 has a
  • the opening 16 is already introduced into the plate-shaped body 12 in its planar initial state according to FIG.
  • the opening 16 is formed with a correspondingly shaped
  • Manufacturing step to form the opening 16 is required and it is especially after the punching process no more machinable
  • Circumferential direction in the rolled or bent state adjacent edges of the body 12 may be connected to each other, for example by welding or a positive connection.
  • the longitudinal extension a and the width b of the opening 16 are selected according to the requirements in the particular case of use of the bearing bush 10 to ensure the required lubrication.
  • the bushing 10 may for example be used in a pump.
  • FIG. 3 shows a pump, which in particular has a
  • the pump has at least one pump element 20 which has a pump piston 26, which is displaceably guided in a cylinder bore 22 of a housing part 24 and which is referred to below as a cylinder head.
  • the pump piston 26 limited with his in the
  • Cylinder bore 22 projecting end of a pump working space 28.
  • the protruding from the cylinder bore 22 end of the pump piston 26 is provided with a
  • roller tappet 30 connected.
  • the roller tappet 30 is supported on a cam 32 of a drive shaft 34, through which during the rotational movement of the drive shaft 34, a stroke movement of the pump piston 26 in the cylinder bore 22 is effected.
  • the drive shaft 34 is via one or two sliding bearings 36th for example, rotatably mounted in a housing 38 of the pump.
  • a bearing bush 10 designed as described above is provided, via which the drive shaft 34 is mounted.
  • the bearing bush 10 is inserted into a bore 40 of the housing 38 of the pump and the bore 40 is lubricant, for example, the funded by the pump fuel via a radially opening into the bore 40 inlet bore 41 is supplied via the opening 16 into the interior of the
  • Bearing bush 10 passes and provides for the lubrication of the sliding bearing 36 of the drive shaft 34.
  • the pump working chamber 28 is connected via an inlet valve 42 with a
  • the low-pressure inlet 44 can be fed, for example, from a feed pump, which draws fuel from a reservoir.
  • the roller tappet 30 has a hollow cylinder-shaped tappet body 50 into which protrudes on the side remote from the cam 32, the protruding from the cylinder bore 22 end of the pump piston 26.
  • a roller 52 On the cam 32 side facing the plunger body 50 is rotatably mounted in this a roller 52 which rolls on the cam 32.
  • a bearing pin 54 In the plunger body 50, a bearing pin 54 is fixed, on which the roller 52 is rotatably supported via the bearing bush 10 formed as described above.
  • the plunger body 50 has a bore 58 which extends at least approximately perpendicular to the longitudinal axis 27 of the pump piston 26, wherein the diameter of the bore 58 is enlarged in its longitudinally central region and the bore 58 in its central region to the cam 32 is open ,
  • the bearing pin 54 may be pressed into the bore 58 at its end regions or be secured, for example by means of a resilient locking ring in the bore 58 so that it is not in the direction of its longitudinal axis from the bore 58th
  • the bearing bush 10 is arranged with slight radial clearance on the central region of the bearing pin 54.
  • the hollow cylindrical roller 52 is mounted with little radial play.
  • the roller 52 is in the Arranged center portion of the bore 58 with its larger diameter and protrudes through the open side of the central region of the bore 58 out to the cam 32 out.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un coussinet (10), en particulier un coussinet lisse, pour le montage en rotation d'un arbre (34) ou d'un galet (52). Le coussinet (10) présente au moins une ouverture radiale (16) par laquelle un lubrifiant peut être amené de l'environnement du coussinet (10) vers l'intérieur du coussinet (10). Au moins un évidement (16) allongé est formé au moins dans la surface cylindrique intérieure du coussinet (10) . L'évidement (16) est réalisé sur toute sa longueur (a) et toute sa largeur (b) sous la forme d'une ouverture traversant entièrement le coussinet (10). Le coussinet (10) est fabriqué à partir d'un corps (12) plat en forme de plaque dans lequel l'ouverture (16) est formée au moyen d'un outil de poinçonnage, et qui est enroulé immédiatement après pour former le coussinet (10) cylindrique.
PCT/EP2017/075357 2016-10-20 2017-10-05 Coussinet, en particulier coussinet lisse Ceased WO2018073014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016220595.1A DE102016220595A1 (de) 2016-10-20 2016-10-20 Lagerbuchse, insbesondere Gleitlagerbuchse
DE102016220595.1 2016-10-20

Publications (1)

Publication Number Publication Date
WO2018073014A1 true WO2018073014A1 (fr) 2018-04-26

Family

ID=60037598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/075357 Ceased WO2018073014A1 (fr) 2016-10-20 2017-10-05 Coussinet, en particulier coussinet lisse

Country Status (2)

Country Link
DE (1) DE102016220595A1 (fr)
WO (1) WO2018073014A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019211001A (ja) 2018-06-04 2019-12-12 大豊工業株式会社 すべり軸受

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2100365A1 (de) 1971-01-07 1972-07-20 Schmidt Gmbh Karl Schmiernutensystem für Gleitlagerungen und Verfahren zu dessen Herstellung
JPS6342842U (fr) * 1986-09-05 1988-03-22
DE102005030307A1 (de) * 2005-06-23 2006-12-28 Federal-Mogul Wiesbaden Gmbh & Co. Kg Lagerschale, halbkreisförmige Lagerschalenhälfte, Verwendung von Lagerschalenhälften und Kurbelwellenhauptlager
WO2007006291A1 (fr) * 2005-07-14 2007-01-18 Federal-Mogul Wiesbaden Gmbh & Co. Kg Coussinet et procede de fabrication associe
DE102011005466A1 (de) * 2011-03-11 2012-09-13 Federal-Mogul Wiesbaden Gmbh Gleitlagerschale

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2100365A1 (de) 1971-01-07 1972-07-20 Schmidt Gmbh Karl Schmiernutensystem für Gleitlagerungen und Verfahren zu dessen Herstellung
JPS6342842U (fr) * 1986-09-05 1988-03-22
DE102005030307A1 (de) * 2005-06-23 2006-12-28 Federal-Mogul Wiesbaden Gmbh & Co. Kg Lagerschale, halbkreisförmige Lagerschalenhälfte, Verwendung von Lagerschalenhälften und Kurbelwellenhauptlager
WO2007006291A1 (fr) * 2005-07-14 2007-01-18 Federal-Mogul Wiesbaden Gmbh & Co. Kg Coussinet et procede de fabrication associe
DE102011005466A1 (de) * 2011-03-11 2012-09-13 Federal-Mogul Wiesbaden Gmbh Gleitlagerschale

Also Published As

Publication number Publication date
DE102016220595A1 (de) 2018-04-26

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