GB2035471A - Elastic damping assemblies - Google Patents
Elastic damping assemblies Download PDFInfo
- Publication number
- GB2035471A GB2035471A GB7937985A GB7937985A GB2035471A GB 2035471 A GB2035471 A GB 2035471A GB 7937985 A GB7937985 A GB 7937985A GB 7937985 A GB7937985 A GB 7937985A GB 2035471 A GB2035471 A GB 2035471A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elastic damping
- sleeve
- damping member
- assembly
- cylindrical
- 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.)
- Withdrawn
Links
- 238000013016 damping Methods 0.000 title claims abstract description 60
- 230000000712 assembly Effects 0.000 title abstract description 7
- 238000000429 assembly Methods 0.000 title abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
-
- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
- F16C27/066—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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Pivots And Pivotal Connections (AREA)
- Steering Controls (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Ball bearing assemblies 3 and 4 have their outer races 7 and 8 mounted in a tube 2 by annular damping rings 9, 10 reinforced by split or segmental thin-wall sleeves 11, 17 engaged form-lockingly in grooves 13, 19 in the outer races 7, 8. In another arrangement the damping ring is in direct form-locking engagement with the outer race of other circular component and the damping ring may be in form-locking engagement with a split thin wall sleeve. <IMAGE>
Description
SPECIFICATION
Elastic damping assemblies
The invention relates to elastic damping assemblies comprising a first cylindrical or annu lar component and an elastic damping member comprising rubber, plastics material or the like, for supporting the first component relative to a concentric second cylindrical or annular component, which damping member is in the form of a circular ring and is reinforced at at least one of its cylindrical surfaces, with a thin-walled sleeve.
Damping members of this kind are used for example for supporting components which rotate at high speeds, iri order on the one hand to damp the vibrations which occur in such components and on the other hand to reduce the noise level.
So that it can meet these requirements, the elastic damping member must be installed under a relatively high degree of pre-stress; this is not possible, or is possible only under difficult conditions, particularly when axial displacement of the elastic damping member in the adjoining component is required in the course of assembly. In addition, care must be taken that axial creep movement of the elastic damping member is also prevented in the event of a possible decline in the pre-stressing.
In order to provide remedial measures in this respect, it has already been proposed that the elastic damping member may be reinforced with a thin-walled sleeve, at least at one of its cylindrical surfaces. Although this arrangement makes it possible for the elastic damping member to be assembled with a prestress and also makes it possible to facilitate axial displacement, there is the disadvantage that very close tolerances must be observed between the sleeve and the adjoining component, the maintaining close tolerances of this kind has a disadvantageous effect from the point of view of cost. Furthermore, measures must be taken in order to prevent axial creep of the elastic damping member.
According to the invention, there is provided an elastic damping assembly comprising a first cylindrical or annular component and a damping member of elastic damping material for supporting the first component concentrically with respect to a second cylindrical or annular component the damping member being in the form of a circular ring reinforced at at least one of its cylindrical surfaces with a thin-walled sleeve, wherein the sleeve is split at at least one peripheral position, is connected to the elastic damping member and engages form-lockingly into a peripheral groove in the first component. This construction provides the advantage that the elastic damping member can be assembled with a high level of pre-stressing, without any particular fine machining operation.Both the connection between the sleeve and the elastic damping member and the form-locking connection between the sleeve and the adjoining component provide a safeguard against axial creep movement even when the pre-stressing in the elastic damping member declines somewhat after a prolonged period of operation.
A simple connection between the sleeve and the elastic damping member is achieved by the sleeve and the elastic damping member being form-lockingly connected together by one of said members having approximately radially extending flanges which engage over the ends of the other member.
It is also possible however for the sleeve and the damping member to be fixedly bonded together for example by adhesive or vulcanisation. In both cases, it is possible for a high degree of pre-stressing to be induced in the elastic damping member, and for a permanent connection between the sleeve and the elastic damping member to be produced, at low cost.
In preferred embodiments of the invention, the sleeve is in the form of a sheet metal member. Using a thin-walled springy metal sheet ensures that the sleeve is safety held in the peripheral groove in the adjoining component.
In a modified form of the invention the sleeve is subdivided into segments. Such a construction may be advantageous, both from the point of view of manufacturing reasons and also in regard to assembly.
It is also possible for both surfaces of the elastic damping member to be reinforced with a sleeve. This arrangement makes it possible not only to secure the elastic damping member to prevent axial creep thereof, but at the same time permits the adjoining components to be fixed axially relative to each other.
Conveniently, the depth of the peripheral groove is equal to or less than the wall thickness of the sleeve. This arrangement provides the advantage that the pre-stressing force in the elastic damping member is reduced to only a negligible degree, when the sleeve is snapped into the peripheral groove.
Embodiments of the invention will now be described in greater detail by way of example with reference to the drawings, in which:
Figure 1 is a view in longitudinal section of an arrangement of an elastic damping assembly according to the invention,
Figure 2 is a view in section taken along line ll-ll in Fig. 1, and
Figure 3 is a view in longitudinal section of another embodiment.
Referring to Fig. 1 and 2, ball-bearing assemblies 3 and 4 are provided for supporting a rotary shaft 1 in a tubular component 2.
The inner races 5 and 6 of the ball-bearing assemblies 3 and 4 are fixedly connected to the shaft 1. Elastic damping members 9 and 10 are disposed between the outer races 7 and 8 and the tubular component 2.
At its innersurface, the elastic damping member 9 is reinforced with a split sleeve 11 which has approximately radially outwardly directed flanges 1 2 at both ends, for engaging around the elastic damping member 9 on the one hand, while on the other hand the sleeve 11 engages form-lockingly into a peripheral groove 1 3 in the outer race 7.
A split sleeve 14 is provided at the outer peripheral surface of the elastic damping member 9. The sleeve 14 has approximately radially inwardly directed flanges 1 5 at both of its ends, for engaging around the elastic damping member 9 on the one hand, while on the other hand, the sleeve 14 engages into the peripheral groove 1 6 in the tubular component 2.
Referring now in particular to Fig. 2, at its inner peripheral surface the elastic damping member 10 has a sleeve formed by separate individual segments 1 7 instead of a split sleeve 11. The segments 1 7 having approximately radially outwardly directed flanges 1 8 which engage around the elastic damping member 10 on the one hand, while on the other hand the segments 1 7 engage formlockingly into the peripheral groove 1 9 in the outer race 8. In the embodiment illustrated (Fig. 1), the depth 20 of the peripheral grooves 13, 16 and 1 9 corresponds to the wall thickness of the sleeves 11 and 14 and the segments 1 7.
At its outer peripheral surface, the elastic damping member 10 is reinforced with a split sleeve 21 which comprises a flat strip and which is secured to the elastic damping member 10 by adhesive or vulcanisation.
In the embodiments shown in Fig. 3, the rotary shaft 1 is supported in the tubular component 2 by ball-bearing assemblies 22 and 23 comprising inner races 24 and 25 which are fixedly connected to the shaft 1.
Elastic damping members 28 and 29 are disposed between the outer races 26 and 27 and the tubular components 2. The elastic damping members 28 and 29 have radially inwardly extending flanges 30 and 31 which engage around the end faces of the outer races 26 and 27.
At its outer peripheral surface, the elastic damping member 28 is reinforced with a split sleeve 32 which comprises a flat strip and which is form-lockingly engaged into a groove 33 in the elastic damping member 28 on the one hand, and into a peripheral groove 34 in the tubular component 2 on the other hand.
In this arrangement, the flanges 35 of the elastic damping member 28 engage around the end faces of the sleeve 32.
Claims (10)
1. An elastic damping assembly comprising a first cylindrical or annular component and a damping member of elastic damping material for supporting the first component concentrically with respect to a second cylindrical or annular components, the damping member being in the form of a circular ring reinforced at at least one of its cylindrical surfaces, with a thin-walled sleeve, wherein the sleeve is split at at least one peripheral position, is connected to the elastic damping member and engages form-lockingly into a peripheral groove in the first components.
2. An assembly accordingly to claim 1 wherein the depth of the peripheral groove is equal to or less than the wall thickness of the sleeve.
3. An elastic damping assembly accordingly to claim 1 or 2 wherein the sleeve and the elastic damping member are form-lockingly connected together by one of said two members having approximately radially extending flanges which engage over the ends of the other member.
4. An assembly according to claim 1 or 2 wherein the sleeve and the damping member are bonded together.
5. An assembly according to any of the preceding claims wherein the thin-walled sleeve is formed of sheet metal.
6. An assembly according to any of the preceding claims wherein the sleeve is subdivided into segments.
7. An assembly according to any of the preceding claims, wherein both surfaces of the elastic damping member are reinforced with a sleeve.
8. An elastic damping assembly comprising a first cylindrical or annular component and a damping member of elastic damping material for supporting the first component concentrically with respect to a second cylindrical or annular component, the damping member being in the form of a circular ring.
9. An assembly according to any of the preceding claims, wherein one of the said components is a race of a rolling bearing.
10. An elastic damping assembly substantially as hereinbefore described with reference to Figs. 1 and 2 or Fig. 3 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782847566 DE2847566A1 (en) | 1978-11-02 | 1978-11-02 | ELASTIC DAMPING ELEMENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2035471A true GB2035471A (en) | 1980-06-18 |
Family
ID=6053708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7937985A Withdrawn GB2035471A (en) | 1978-11-02 | 1979-11-02 | Elastic damping assemblies |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2847566A1 (en) |
| FR (1) | FR2440495A1 (en) |
| GB (1) | GB2035471A (en) |
| IT (1) | IT1124878B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203500A (en) * | 1987-03-21 | 1988-10-19 | Skf Gmbh | Roller bearings |
| GB2232627A (en) * | 1989-04-19 | 1990-12-19 | Lister Shearing Equip Ltd | Shearing apparatus |
| WO2000030888A1 (en) * | 1998-11-24 | 2000-06-02 | Audi Ag | Mounting for a vehicle seat and roller therefor |
| US6964211B1 (en) * | 2000-10-06 | 2005-11-15 | Trw Inc. | Steering column with improved housing |
| EP1950433A3 (en) * | 2007-01-26 | 2013-05-01 | JTEKT Corporation | Rolling bearing device |
| CN107781307A (en) * | 2017-10-19 | 2018-03-09 | 刘和来 | A kind of Self-aligning linear-contact double-cambered surface bearing supporter for mills |
| CN116259454A (en) * | 2023-04-25 | 2023-06-13 | 浙江旺隆轨道交通设备有限公司 | a post insulator |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5838230U (en) * | 1981-09-09 | 1983-03-12 | 株式会社共立 | Brush cutter vibration isolator |
| DE3146137A1 (en) * | 1981-11-21 | 1983-06-01 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Device for the elastic fixing of bearings |
| FR2520460A1 (en) * | 1982-01-27 | 1983-07-29 | Renault | DEVICE FOR IMMOBILIZING AN ELASTIC BEARING IN A RIGID TUBE |
| DE3509127A1 (en) * | 1985-03-14 | 1986-09-25 | Jean Walterscheid Gmbh, 5204 Lohmar | Protective device |
| US5044784A (en) * | 1990-07-31 | 1991-09-03 | Eaton Corporation | Bearing isolator |
| DE19642193A1 (en) * | 1996-10-12 | 1998-04-16 | Teves Gmbh Alfred | Bearing for electric motor |
| DE10225755B4 (en) * | 2002-06-10 | 2005-12-15 | Carl Freudenberg Kg | Shaft bearing with an elastic damping element |
| DE10352322B4 (en) * | 2003-11-06 | 2006-03-09 | Ewm Eichelhardter Werkzeug- Und Maschinenbau Gmbh | Silencer arrangement within a drive train |
| DE102008034939B4 (en) * | 2008-04-10 | 2010-01-28 | Ab Skf | Bearing assembly for a carrier roller and method for its preparation |
| CN108916218B (en) * | 2017-01-23 | 2020-04-03 | 郑梦兰 | A buffer shock-absorbing ring for deep groove ball bearings of air-conditioning compressors |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH322744A (en) * | 1952-09-11 | 1957-06-30 | Pirelli | Device to eliminate vibrations and noises in rolling bearings |
| US3302988A (en) * | 1963-12-17 | 1967-02-07 | Plastic & Rubber Prod Co | Shaft bearing with removable bearing insert |
| CS177052B2 (en) * | 1969-10-10 | 1977-07-29 | ||
| DE2232752A1 (en) * | 1972-07-04 | 1974-01-24 | Clouth Gummiwerke Ag | ROLLER |
-
1978
- 1978-11-02 DE DE19782847566 patent/DE2847566A1/en not_active Withdrawn
-
1979
- 1979-10-25 FR FR7926498A patent/FR2440495A1/en not_active Withdrawn
- 1979-10-31 IT IT26973/79A patent/IT1124878B/en active
- 1979-11-02 GB GB7937985A patent/GB2035471A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203500A (en) * | 1987-03-21 | 1988-10-19 | Skf Gmbh | Roller bearings |
| GB2203500B (en) * | 1987-03-21 | 1991-07-31 | Skf Gmbh | Rotationally mounted roller |
| GB2232627A (en) * | 1989-04-19 | 1990-12-19 | Lister Shearing Equip Ltd | Shearing apparatus |
| GB2232627B (en) * | 1989-04-19 | 1993-08-25 | Lister Shearing Equip Ltd | Shearing apparatus |
| WO2000030888A1 (en) * | 1998-11-24 | 2000-06-02 | Audi Ag | Mounting for a vehicle seat and roller therefor |
| US6964211B1 (en) * | 2000-10-06 | 2005-11-15 | Trw Inc. | Steering column with improved housing |
| EP1950433A3 (en) * | 2007-01-26 | 2013-05-01 | JTEKT Corporation | Rolling bearing device |
| CN107781307A (en) * | 2017-10-19 | 2018-03-09 | 刘和来 | A kind of Self-aligning linear-contact double-cambered surface bearing supporter for mills |
| CN107781307B (en) * | 2017-10-19 | 2019-07-12 | 刘和来 | A kind of Self-aligning linear-contact double-cambered surface bearing supporter for mills |
| CN116259454A (en) * | 2023-04-25 | 2023-06-13 | 浙江旺隆轨道交通设备有限公司 | a post insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2847566A1 (en) | 1980-05-08 |
| FR2440495A1 (en) | 1980-05-30 |
| IT1124878B (en) | 1986-05-14 |
| IT7926973A0 (en) | 1979-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |