CN109153306B - Vibration damping strut mounting device and vibration damping strut comprising a vibration damping strut mounting device - Google Patents

Vibration damping strut mounting device and vibration damping strut comprising a vibration damping strut mounting device Download PDF

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Publication number
CN109153306B
CN109153306B CN201780031410.4A CN201780031410A CN109153306B CN 109153306 B CN109153306 B CN 109153306B CN 201780031410 A CN201780031410 A CN 201780031410A CN 109153306 B CN109153306 B CN 109153306B
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CN
China
Prior art keywords
sealing lip
strut
mounting device
vibration damping
damping strut
Prior art date
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CN201780031410.4A
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Chinese (zh)
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CN109153306A (en
Inventor
克里斯蒂安·努伊瑟
马丁·克虏伯
安德里亚斯·沃尔纳
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication of CN109153306A publication Critical patent/CN109153306A/en
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    • 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
    • F16C33/72—Sealings
    • 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
    • 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
    • F16C33/761—Sealings of ball or roller bearings specifically for bearings with purely 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/124—Mounting of coil springs
    • B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to a strut mounting device (1) for supporting a strut on a body of a vehicle, comprising an upper bearing (2) having at least one soft component (4) and at least one hard component (5), and a lower bearing (3) mounted rotatably relative to the upper bearing (2), wherein the soft and hard components (4, 5) are designed as components embedded in one another, wherein the soft component (4) has a first sealing lip (6) having a bead (8), wherein the bead (8) bears in a sliding manner on a sliding surface (10) of the lower bearing (3).

Description

Vibration damping strut mounting device and vibration damping strut having a vibration damping strut mounting device
Technical Field
The present invention relates to a vibration damping strut support device. The invention further relates to a damping strut having a damping strut mounting device.
Background
Damping strut bearings have long been known from the prior art. The shock absorbing strut support apparatus is part of a suspension apparatus in an independent suspension apparatus. The suspension device must be responsible for the highest driving safety and the desired driving comfort, enabling the wheel to turn easily and precisely, the forces generated at the tire contact points being able to be transmitted to the vehicle structure, avoiding the vehicle driving noise and making the driving as smooth as possible.
The suspension strut mounting is ideally arranged above the suspension between the suspension spring and the vehicle body. The damper strut mounting makes it possible to rotationally move the damper with reduced friction and to positively affect the turning characteristics of the vehicle.
The damping strut bearing should ensure a better sealing effect with respect to environmental influences, such as dirt, dust, splashes. Due to this requirement, a sliding seal is provided and structurally positioned between the cover (also referred to as the upper support) and the guide ring (also referred to as the lower support).
In contrast to the requirement for a good seal, a complete bearing device is required to generate a low or stable friction torque. However, there is a dependency between a good sealing effect and the resulting high pressing force of the sealing lip, as opposed to a low friction torque.
In the case of known vibration-damping strut bearings with sliding seals, the cover is provided with a circumferential cover of the sealing device in order to additionally protect the softer, sliding sealing lip of the sealing device. This design should have a positive influence on the external effects formed by the splashing. A problem of the known sealing device is the pressing force of the sliding sealing lip. This pressing force is increased by the cover on the sliding seal and the reduced flexibility thereof. A problem is also that, through the gap between the cover and the guide ring, splashes of water from the wheel arch can often be introduced and thus damage or saturate the sealing device.
Disclosure of Invention
The object of the present invention is therefore to provide a better sealing device for a damping strut bearing, which has only a low or no effect on the friction torque of the damping strut bearing.
According to the invention, the object is achieved, in particular, by a vibration-damping strut mounting for supporting a vibration-damping strut on a body of a vehicle, comprising an upper bearing part having at least one soft component and at least one hard component, and a lower bearing part which is mounted rotatably relative to the upper bearing part, wherein the soft component and the hard component are designed as components which are embedded in one another, wherein the soft component has a first sealing lip which is provided with a bulge, wherein the bulge bears in a sliding manner against a sliding surface of the lower bearing part.
By providing the elevations, the manufacturing tolerances of the bearing, the axial and radial offset during operation and the pretensioning of the sealing lip are better balanced and compensated. This provides a better sealing of the vibration damper strut mounting, which has little or no effect on the friction torque of the vibration damper strut mounting.
The first sealing lip bears against the lower bearing independently of the tolerance position of the two active components or the manufacturing process. In the case of a large overlap, the first sealing lip is pressed radially outward. With less overlap, the first sealing lip bears further inward in the radial direction. In both cases, the contact surface between the first sealing lip and the sliding surface remains substantially constant, since the contact surface can extend to the radius of the sealing lip geometry.
Preferably, the upper support is a protective cover. Preferably, the lower support is a guide ring.
Preferably, a bearing is disposed between the upper support and the lower support. Advantageously, the damping strut mounting is a rolling bearing or a plain bearing.
In an embodiment according to the invention, the bulge is arranged on the lower end of the first sealing lip.
This can result in greater resistance to moisture, grease, oil or liquids penetrating in, and thus in a better sealing effect for the vibration damper strut bearing. In this case, the bulging portion is oriented toward the sliding surface of the lower bearing.
Preferably, the sliding surface is a counter sliding surface. In this case, a contact surface is formed between the sealing lip and the lower bearing part.
In a further embodiment according to the invention, the bulging portion constitutes line contact with a sliding surface of the lower bearing.
Thus, a sufficient contact surface is provided between the seal lip and the sliding surface.
In a further embodiment according to the invention, the first sealing lip is closed circumferentially by a bulge.
Thus, a better sealing is achieved in a simple manner.
In a further embodiment according to the invention, the elevation is designed in the form of a torus or ring in order to form a convex sliding profile of the sliding surface of the elevation.
The torus is a flat surface shaped as a bump and has an aperture, also in the shape of a "donut". The bulge is preferably designed as a convex shape on the end of the first sealing lip. Preferably, "convex rounded" means a more gradual arch.
Preferably, a second sealing lip is provided as a gap seal, wherein the second sealing lip is arranged between the first sealing lip and a partial region of the hard component.
By providing the gap seal, the damping strut mounting can be protected against the ingress of, in particular, splashed water, grease and oil. The first sealing lip is designed as an inner sealing lip and the second sealing lip as an outer sealing lip.
Preferably, the second sealing lip is closed circumferentially. Preferably, the two sealing lips which are closed around are rotationally symmetrical sealing lips which are closed over 360 °. Preferably, the lower support has a tendency to decrease outwardly. Therefore, the outflow of splashed water that has penetrated the damper strut support device can be ensured.
In a further embodiment according to the invention, the bulge has a radius approximately equal to the sealing lip web or waist of the first sealing lip.
Therefore, an almost constant contact surface can be achieved between the first seal lip and the sliding surface.
In a further embodiment according to the invention, the first sealing lip is designed as a flexible sealing lip.
By providing a free space or gap between the first sealing lip and the second sealing lip, a flexible sealing lip profile can be achieved in a simple manner.
In a further embodiment according to the invention, the soft part is made of TPC or TPU and the hard part is made of glass fiber reinforced plastic.
Thus, the soft component may use materials that can be manufactured inexpensively. In addition, the hard component may be made of a material that is inexpensive to manufacture and is not easily bendable. Preferably, the glass fiber reinforced plastic is PA 66.
In a further embodiment according to the invention, the upper support is a two-component injection molded part.
Therefore, the upper support can be manufactured in a simple manner. Preferably, the soft part and the hard part are designed as interconnected components. Preferably, the soft component is injection molded over the hard component. Thus, the two components are connected to each other in a simple manner.
Furthermore, the object is achieved in particular by a damping strut having a damping strut mounting as described above.
Drawings
The invention is further illustrated by the attached figures. The attached drawings are as follows:
fig. 1 shows a schematic sectional view through a vibration damping strut mounting according to the invention.
Detailed Description
Fig. 1 shows a damper strut mounting 1 for supporting a damper strut on a body of a vehicle. The vibration-damping strut bearing 1 has an upper support 2, which upper support 2 has at least one soft component 4 and at least one hard component 5. The upper support 2 is designed as a two-component injection molded part. In this case, the soft component is injection molded over the hard component. The two parts 4, 5 are designed as components that engage in one another. The damper strut mounting device 1 further has a lower support 3 rotatably supported with respect to the upper support 2. Between the upper bearing 2 and the lower bearing 3, a bearing, not shown, is arranged, which is designed as a sliding bearing or a rolling bearing.
The soft component 4 has a built-in first sealing lip 6 provided with a bulge 8. The soft component 4 also has an external second sealing lip 7. The second sealing lip 7 is arranged between the first sealing lip 6 and a partial region of the hard component 5. In this case, the second sealing lip 7 bears against a partial region of the hard component. A free space or gap is provided between the two sealing lips 6 and 7. The first sealing lip 6 is made more flexible or flexible by the free space or gap provided between the first sealing lip 6 and the second sealing lip 7.
The first seal lip 6 forms a sliding seal with the lower bearing 3. In this case, the ridge 8 slides on the lower support 3. The bulge 8 is arranged on the lower end of the first sealing lip 6 and is oriented towards the sliding surface 10 of the lower bearing 3. In order to form a convex sliding contour for the sliding surface 10, the elevation 8 is designed in the shape of a torus or ring. In this case, the bulging portion 8 makes line contact with the sliding surface 10 of the lower bearing 3. The bulge 8 has a radius approximately equal to the sealing lip web of the first sealing lip 6.
The second sealing lip 7 is designed as a gap seal. A gap 9 is formed between the second sealing lip 7 and the lower bearing 3.
The first sealing lip 6 with the bulge 8 is designed to be closed all around. Likewise, the second sealing lip 7 is also designed as a wrap-around closure. This can prevent moisture, grease, oil, or liquid from entering the damper strut support device 1.
The soft part 4 is constituted by a TPC or alternatively by a TPU. The hard component 5 consists of a glass fibre-reinforced plastic, in particular PA 66.
By providing the elevations, manufacturing tolerances of the bearing, axial and radial offset during operation and pretensioning of the sealing lip can be compensated and compensated for better. Thus, a better sealing of the damping strut bearing is provided, which has little or no influence on the friction torque of the damping strut bearing.
List of reference numerals
1 damping strut support device
2 upper support
3 lower support
4 Soft component
5 hard parts
6 first sealing lip
7 second sealing lip
8 raised part
9 gap
10 sliding surface

Claims (8)

1. A shock absorber strut mounting device (1) for supporting a shock absorber strut on a vehicle body of a vehicle, the vibration-damping strut bearing arrangement comprises an upper bearing (2) having at least one soft component (4) and at least one hard component (5), and a lower bearing (3) rotatably mounted relative to the upper bearing (2), wherein the soft component (4) and the hard component (5) are designed as components which are embedded in one another, wherein the soft component (4) has a first sealing lip (6) provided with a bulge (8), wherein the bulge (8) bears slidingly against a sliding surface (10) of the lower bearing (3), the bulge (8) being designed in the form of a convex circle at the end of the first sealing lip (6) and being oriented towards the sliding surface (10) of the lower bearing (3), the raised part (8) and the sliding surface (10) of the lower bearing (3) form a line contact.
2. The vibration damping strut mounting device (1) according to claim 1, wherein said first sealing lip (6) is circumferentially closed by means of said bulge (8).
3. The vibration damping strut mounting device (1) as claimed in claim 1, wherein the elevations (8) are designed as a torus or ring in order to form a convex sliding profile of the sliding surface (10).
4. The vibration damping strut mounting device (1) according to claim 1, wherein said bulge (8) has a radius approximately equal to a sealing lip web of said first sealing lip (6).
5. The vibration damping strut mounting device (1) according to claim 1, wherein said first sealing lip (6) is designed as a flexible sealing lip.
6. The vibration dampening strut support device (1) according to any one of claims 1 to 5, wherein the soft part (4) is made of TPC or TPU and the hard part (5) is made of glass fiber reinforced plastic.
7. The vibration dampening strut support device (1) according to any one of claims 1 to 5, wherein the upper support (2) is a two-component injection molded part.
8. A shock absorber strut having a shock absorber strut supporting arrangement (1) as claimed in any one of the preceding claims.
CN201780031410.4A 2016-06-06 2017-06-01 Vibration damping strut mounting device and vibration damping strut comprising a vibration damping strut mounting device Active CN109153306B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016209901.9A DE102016209901A1 (en) 2016-06-06 2016-06-06 Suspension strut bearing and suspension strut with suspension strut bearing
DE102016209901.9 2016-06-06
PCT/DE2017/100469 WO2017211353A1 (en) 2016-06-06 2017-06-01 Suspension strut bearing and suspension strut having a suspension strut bearing

Publications (2)

Publication Number Publication Date
CN109153306A CN109153306A (en) 2019-01-04
CN109153306B true CN109153306B (en) 2022-09-23

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CN201780031410.4A Active CN109153306B (en) 2016-06-06 2017-06-01 Vibration damping strut mounting device and vibration damping strut comprising a vibration damping strut mounting device

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KR (1) KR102505093B1 (en)
CN (1) CN109153306B (en)
DE (1) DE102016209901A1 (en)
WO (1) WO2017211353A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017113050A1 (en) * 2017-06-14 2018-12-20 Schaeffler Technologies AG & Co. KG Strut mounts

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DE19605179A1 (en) * 1996-02-13 1997-08-14 Schaeffler Waelzlager Kg Roller-bearing seal as roller-straddling discs with seal
WO2011026703A1 (en) * 2009-09-02 2011-03-10 Aktiebolaget Skf Thrust bearing and suspension for vehicle
CN102046404A (en) * 2008-08-01 2011-05-04 Skf公司 Suspension bump stop and strut device
DE102011004334A1 (en) * 2011-02-17 2012-08-23 Schaeffler Technologies Gmbh & Co. Kg Strut mounts
CN203297366U (en) * 2012-04-25 2013-11-20 日本精工株式会社 Rolling bearing component for supporting vehicle wheel
DE102012212522A1 (en) * 2012-07-18 2014-01-23 Schaeffler Technologies AG & Co. KG Suspension strut bearing e.g. thrust bearing, for use in motor car, has guide ring whose surface is provided with glass-fiber-free components, and seal whose contact regions are formed in glass-fiber-free components
CN104220279A (en) * 2012-02-14 2014-12-17 舍弗勒技术有限两合公司 Suspension strut bearing

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JP4175139B2 (en) * 2003-02-24 2008-11-05 日本精工株式会社 Manufacturing method of wheel bearing unit
DE102006057559A1 (en) * 2006-12-07 2008-06-12 Schaeffler Kg Strut mounts
FR2915929B1 (en) * 2007-05-09 2009-07-31 Snr Roulements Sa SUSPENSION STOPPER WITH FILTER ELEMENT AND METHOD FOR MANUFACTURING THE SAME.
JP5471265B2 (en) * 2009-10-07 2014-04-16 日本精工株式会社 Rolling bearing with seal ring
FR2989634B1 (en) * 2012-04-23 2015-01-30 Skf Ab SUSPENSION STOP DEVICE AND FORCE LEG EQUIPPED WITH SUCH A DEVICE
DE102014206658B4 (en) * 2014-04-07 2021-06-10 Schaeffler Technologies AG & Co. KG Suspension strut bearing with a two-component cap
EP3002137B1 (en) * 2014-09-30 2018-12-26 Aktiebolaget SKF Suspension bearing device, motor vehicle equipped with such a suspension bearing device and manufacturing method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19605179A1 (en) * 1996-02-13 1997-08-14 Schaeffler Waelzlager Kg Roller-bearing seal as roller-straddling discs with seal
CN102046404A (en) * 2008-08-01 2011-05-04 Skf公司 Suspension bump stop and strut device
WO2011026703A1 (en) * 2009-09-02 2011-03-10 Aktiebolaget Skf Thrust bearing and suspension for vehicle
DE102011004334A1 (en) * 2011-02-17 2012-08-23 Schaeffler Technologies Gmbh & Co. Kg Strut mounts
CN104220279A (en) * 2012-02-14 2014-12-17 舍弗勒技术有限两合公司 Suspension strut bearing
CN203297366U (en) * 2012-04-25 2013-11-20 日本精工株式会社 Rolling bearing component for supporting vehicle wheel
DE102012212522A1 (en) * 2012-07-18 2014-01-23 Schaeffler Technologies AG & Co. KG Suspension strut bearing e.g. thrust bearing, for use in motor car, has guide ring whose surface is provided with glass-fiber-free components, and seal whose contact regions are formed in glass-fiber-free components

Also Published As

Publication number Publication date
KR102505093B1 (en) 2023-03-06
DE102016209901A1 (en) 2017-12-07
KR20170138041A (en) 2017-12-14
CN109153306A (en) 2019-01-04
WO2017211353A1 (en) 2017-12-14

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