WO2018046038A1 - Palier de jambe de force - Google Patents

Palier de jambe de force Download PDF

Info

Publication number
WO2018046038A1
WO2018046038A1 PCT/DE2017/100569 DE2017100569W WO2018046038A1 WO 2018046038 A1 WO2018046038 A1 WO 2018046038A1 DE 2017100569 W DE2017100569 W DE 2017100569W WO 2018046038 A1 WO2018046038 A1 WO 2018046038A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
guide ring
bearing
sliding
strut
Prior art date
Application number
PCT/DE2017/100569
Other languages
German (de)
English (en)
Inventor
Gerhard Meyer
Martin Kruppa
Ralf Stautner
Rainer Lutz
Andreas Wöllner
Original Assignee
Schaeffler Technologies AG & 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
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2018046038A1 publication Critical patent/WO2018046038A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
    • B60G15/068—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit specially adapted for MacPherson strut-type suspension
    • 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
    • F16C33/102—Construction relative to lubrication with grease as lubricant
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/418—Bearings, e.g. ball or roller bearings
    • 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
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
    • 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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • 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
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/80—Labyrinth sealings

Definitions

  • the invention relates to a suspension strut bearing, which is intended for use in struts.
  • Strut bearings are part of the suspension for independent suspension.
  • the suspension supports a desired driving safety and driving comfort, as well as easy and precise steering of the wheels.
  • the suspension should keep road noise from the structure and be as light as possible.
  • the suspension strut bearing guides the shock absorber spring and forms a support surface for the shock absorber end stop.
  • the strut bearing absorbs the transmitted via the shock absorber spring and the shock absorber radial and axial forces and ensures that the shock absorber spring during steering and compression twisted friction and tension-free and thus operates without restoring moment.
  • Strut bearings are often part of the so-called McPherson struts.
  • the strut consists essentially of spring, shock absorbers and steering knuckle.
  • the suspension strut bearing is provided with a cap which is fastened to the chassis-side suspension strut dome and with a guide ring on which the shock absorber spring is supported and guided.
  • the guide ring is rotatably mounted relative to the cap.
  • the camp allows when steering a rotation of the spring relative to the body, since during steering movements, the entire strut rotates.
  • a strut bearing is known, which has a cap and a relative to the cap rotatable guide ring. Between cap and guide ring a sliding bearing is arranged.
  • the sliding bearing is formed of a sliding element, which is arranged between the guide ring and the cap.
  • EP 2 317 167 A1 discloses a suspension strut bearing with a cap, a guide ring and a sliding bearing arranged therebetween.
  • the sliding bearing is inserted in a recess of the guide ring and forms a sliding surface for the cap.
  • a suspension strut bearing which has a cap and a guide ring.
  • the cap and the guide ring are made of metal.
  • a sliding bearing is arranged, which is formed of a synthetic resin.
  • Object of the present invention is to provide a suspension strut available, which is simple and inexpensive to produce.
  • a suspension strut bearing with a cap and with respect to the cap about a rotation axis rotatably mounted guide ring and at least one seal, wherein between the cap and the guide ring a sliding bearing is arranged, wherein the Gleitla- ger on the cap and / or the guide ring is injection molded, wherein the sliding bearing has an axial sliding surface and a radial sliding surface, wherein the axial sliding surface is partially connected to the radial sliding surface.
  • Strut bearings have a cap and a captive connected by a snap connection with the cap guide ring. Between the cap and the guide ring a bearing is provided. This bearing is designed as a sliding bearing.
  • the suspension strut bearings are attached to the chassis-side strut tower or the topmount.
  • a shock absorber spring is supported, which is guided by the guide ring.
  • the support of the shock absorber spring can be done directly on the guide ring o- indirectly via another component.
  • the strut bearing according to the invention has a sliding bearing, which have an axial sliding surface and a radial sliding surface. Seen in the circumferential direction, the two sliding surfaces are partially connected.
  • Such a design of the plain bearing is particularly advantageous for the manufacturing process. If the sliding bearing with the partial connection of the two sliding surfaces is sprayed onto the cap and / or the guide ring, in contrast to a continuous connection of the sliding surfaces, prevents the axial sliding surface can pull up the radial sliding surface during cooling and thus the radial surface is separated from the cap and / or the guide ring. According to the invention, deformations on the sliding surfaces are avoided, whereby failures of the suspension strut bearing can be reduced.
  • the partial connection of the axial sliding surface with the radial sliding surface can be realized for example by means of webs. The partial connection is formed from the same material as the sliding surfaces.
  • the cap and / or the guide ring is formed of a glass fiber reinforced plastic.
  • the glass fiber reinforced plastic ensures the necessary stability and rigidity of the cap or guide ring.
  • a polyamide such as a PA66-GF, may be provided. It is also the use of another plastic or metal, which has the same properties.
  • the cap and / or the guide ring is formed of a non-reinforced material.
  • the sliding bearing is formed of an unreinforced plastic.
  • unreinforced plastic for example, a polyoxymethylene or a polyethylene can be used. As a result, mixed friction and stick-slip effects can be reduced or prevented.
  • the seal is designed as a labyrinth seal.
  • the labyrinth seal is designed as a Merfachlabyrinthdichtung.
  • the cap is designed such that it has at least one protruding board.
  • Analogous to the cap of the guide ring is designed such that it has a protruding board.
  • the cap and the guide ring can interlock by means of the formed ribs, whereby a labyrinth-like structure is formed. This prevents dirt from entering the suspension strut bearing, thereby allowing radial suspension of the suspension strut bearing.
  • a grinding seal instead of a labyrinth seal, in which a sealing lip abuts the guide ring in a grinding manner.
  • a combination of a labyrinth seal and a sliding seal is conceivable, in this case, the abrasive seal may be formed on the outer circumference or in the region of the labyrinth.
  • the sliding bearing forms part of the labyrinth seal.
  • the two sliding elements are designed such that they each have at least one protruding board.
  • the two sliding elements can engage in each other by means of the formed ribs, whereby a labyrinth-like structure is formed.
  • the guide ring may have a reinforcement.
  • This reinforcement can be designed as a sheet metal part, which is injected for example in the guide ring or mounted directly on the contact surface of the shock absorber spring. The advantage of this is that thereby the spring forces can be absorbed without damage from the guide ring.
  • a lubricant is provided in the strut bearing.
  • the lubricant may be formed as a grease, lubricating oil or the like.
  • the lubricant serves to further reduce the friction between the sliding bearing and the cap / guide ring. This allows a uniform pivoting movement of the bearing under applied load and at the same time reduces wear.
  • the axial sliding surface and / or the radial sliding surface on at least one recess can be formed, for example, as a notch, grooves, beading, pocket (s), groove (s), indentation (s), groove (s) or hole-like in the respective sliding surfaces.
  • the depression can be helical, circumferential, partial, multi-row or spiral-shaped in at least one of the sliding surfaces.
  • a change in the flow cross-section of the recess may also be possible.
  • a combination of the different wells is conceivable.
  • the recess allows a transport of the lubricant along the entire sliding surface / s. In addition, this allows a continuous lubrication, whereby the wear on the sliding bearing and the cap / guide ring can be reduced.
  • Fig. 1 shows a longitudinal section through an inventive strut bearing according to a first embodiment
  • Fig. 2 is a partial longitudinal section through a guide ring of the strut mount according to the invention according to the first embodiment
  • Fig. 3 is a longitudinal section through an inventive strut bearing according to a second embodiment.
  • FIG. 1 shows a longitudinal section through an inventive strut bearing 1 according to a first embodiment.
  • the suspension strut bearing 1 has a cap 2, and a guide ring 3, which is rotatably mounted relative to the cap 2 about a rotation axis D.
  • the cap 2 is connected to the guide ring 3 by means of a snap connection 3a.
  • the cap 2 is attached to a not pictured top bearing of a chassis of a motor vehicle.
  • the guide ring 3 receives an axial end of a shock absorber spring, not shown. Spring forces of the shock absorber spring are passed over the guide ring 3 in the cap 2 and from there into the cathedral camp.
  • a labyrinth seal 5 is provided, which is preferably designed as a double labyrinth seal 6.
  • the cap 2 is provided on its outer circumference with the two coaxially arranged to the rotational axis D, annularly closed rims 7, 8, which define a circumferential annular groove 9.
  • the two integrally formed on the cap 2 shelves 7, 8 extend with their free ends in the direction of the guide ring. 3
  • the guide ring 3 is arranged on the outer circumference with two coaxial with the axis of rotation D, annularly closed rims 10, 1 1, which define a circumferential annular groove 12.
  • the two integrally formed on the guide ring 3 shelves 10, 1 1 extend with their free ends in the direction of cap second
  • the rims 7 and 8 are arranged offset radially with respect to the rims 10 and 10.
  • the board 10 engages in the annular groove 9 a.
  • the board 8 of the cap 2 engages in the annular groove 12 a.
  • the guide ring 3 is mounted on the cap 2 axially in the direction of the axis of rotation D via a slide bearing 4.
  • the sliding bearing 4 serves to transmit forces acting along the axis of rotation D from the guide ring 3 to the cap 2.
  • FIG. 3 shows a further embodiment of the invention.
  • like parts will be identified by the same reference numerals as in the preceding figures. The description is limited only to the distinguishing features of Figure 1 and Figure 2.
  • the guide ring 3 of the FIGURE has a reinforcement 16.
  • This reinforcement 16 is formed as a metal insert and is overmolded with the material of the guide ring 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sealing Of Bearings (AREA)
  • Vehicle Body Suspensions (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un palier de jambe de force pourvu d'une calotte (2), d'une bague de guidage (3) montée de manière à pouvoir tourner par rapport à la calotte (2) autour d'un axe de rotation (D), et d'au moins un joint. Un palier lisse (4) est agencé entre la calotte (2) et la bague de guidage (3), le palier lisse (4) étant injecté sur la calotte (2) et/ou sur la bague de guidage (3). Le palier lisse (4) présente une surface de glissement axiale (13) et une surface de glissement radiale (14), la surface de glissement axiale (13) étant reliée en partie à la surface de glissement radiale (14).
PCT/DE2017/100569 2016-09-12 2017-07-10 Palier de jambe de force WO2018046038A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016217300.6A DE102016217300B4 (de) 2016-09-12 2016-09-12 Federbeinlager
DE102016217300.6 2016-09-12

Publications (1)

Publication Number Publication Date
WO2018046038A1 true WO2018046038A1 (fr) 2018-03-15

Family

ID=59501127

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100569 WO2018046038A1 (fr) 2016-09-12 2017-07-10 Palier de jambe de force

Country Status (2)

Country Link
DE (1) DE102016217300B4 (fr)
WO (1) WO2018046038A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11396908B2 (en) 2019-01-29 2022-07-26 Aktiebolaget Skf Suspension thrust bearing device and suspension strut equiped with such a device
US11491839B2 (en) * 2019-01-29 2022-11-08 Aktiebolaget Skf Suspension thrust bearing device and suspension strut equiped with such a device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001027229A (ja) * 1999-07-15 2001-01-30 Oiles Ind Co Ltd 合成樹脂製の滑り軸受
DE102008057590A1 (de) 2008-08-13 2010-02-18 Schaeffler Kg Federbeingleitlager
EP2317167A1 (fr) 2008-08-26 2011-05-04 Oiles Corporation Palier lisse de poussée constitué d une résine synthétique
DE102010011816A1 (de) * 2010-03-18 2011-09-22 Schaeffler Technologies Gmbh & Co. Kg Federbeingleitlager
DE102010015712A1 (de) 2010-04-21 2011-10-27 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager und Herstellungsverfahren für ein Bauteil eines Federbeinlagers
DE102013201965A1 (de) * 2013-02-07 2014-08-07 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager
DE102013210313A1 (de) * 2013-06-04 2014-12-04 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager
JP2016112971A (ja) * 2014-12-12 2016-06-23 オイレス工業株式会社 車両用スラスト軸受

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6194586B2 (ja) * 2013-01-29 2017-09-13 オイレス工業株式会社 合成樹脂製の滑り軸受

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001027229A (ja) * 1999-07-15 2001-01-30 Oiles Ind Co Ltd 合成樹脂製の滑り軸受
DE102008057590A1 (de) 2008-08-13 2010-02-18 Schaeffler Kg Federbeingleitlager
EP2317167A1 (fr) 2008-08-26 2011-05-04 Oiles Corporation Palier lisse de poussée constitué d une résine synthétique
DE102010011816A1 (de) * 2010-03-18 2011-09-22 Schaeffler Technologies Gmbh & Co. Kg Federbeingleitlager
DE102010015712A1 (de) 2010-04-21 2011-10-27 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager und Herstellungsverfahren für ein Bauteil eines Federbeinlagers
DE102013201965A1 (de) * 2013-02-07 2014-08-07 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager
DE102013210313A1 (de) * 2013-06-04 2014-12-04 Schaeffler Technologies Gmbh & Co. Kg Federbeinlager
JP2016112971A (ja) * 2014-12-12 2016-06-23 オイレス工業株式会社 車両用スラスト軸受

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11396908B2 (en) 2019-01-29 2022-07-26 Aktiebolaget Skf Suspension thrust bearing device and suspension strut equiped with such a device
US11491839B2 (en) * 2019-01-29 2022-11-08 Aktiebolaget Skf Suspension thrust bearing device and suspension strut equiped with such a device

Also Published As

Publication number Publication date
DE102016217300A1 (de) 2018-03-15
DE102016217300B4 (de) 2018-12-20

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