NZ762118B2 - Anti-vibration mount - Google Patents
Anti-vibration mount Download PDFInfo
- Publication number
- NZ762118B2 NZ762118B2 NZ762118A NZ76211818A NZ762118B2 NZ 762118 B2 NZ762118 B2 NZ 762118B2 NZ 762118 A NZ762118 A NZ 762118A NZ 76211818 A NZ76211818 A NZ 76211818A NZ 762118 B2 NZ762118 B2 NZ 762118B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- dampening material
- vibration
- end cap
- elongate core
- vibration dampening
- Prior art date
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
- 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
- F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
- F16F1/3732—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
-
- 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
- F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
- F16F1/3732—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
- F16F1/3735—Multi-part grommet-type resilient mountings
-
- 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
- F16F1/3835—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 characterised by the sleeve of elastic material, e.g. having indentations or made of materials of different hardness
Abstract
prior art, known vibration suppression mounts used for machinery may comprise a bush having a core, often formed from steel, and a vibration damping material, such as for example an elastomer material coating the outer surface of the core. The vibration suppression mount is used to aid support for the weight of a machine, the steel core preventing the over compression of the suppression mount’s vibration dampening material, and the vibration dampening material is used to reduce/isolate vibrations of the machine. An anti-vibration apparatus 30) comprising a bush (330), said bush comprising a substantially rigid, elongate core (360), covered in a vibration dampening material (340) having at least one end cap washer (310a, 310b), configured in that the bush (330) engages with the end cap washer to cover the end of the elongate core (360). The vibration dampening material further comprises a plurality of recessed portions (232) on its surface that extend axially along a main axis of the elongate core and along an entire length of the vibration dampening material. The end cap washer comprises a steeped portion to allow insertion of the end of the elongate core and to interface fit with the vibration dampening material such that the recessed portions of the vibration dampening material are within the stepped portion.
Claims (19)
1. An anti-vibration apparatus comprising a bush, said bush comprising: a substantially rigid elongate core; a vibration dampening material on an outer surface of the elongate core; and 5 at least one end cap washer, wherein the vibration dampening material engages with the at least one end cap washer to cover an end of the elongate core, and wherein the vibration dampening material comprises a plurality of recessed portions on its surface that extend axially along a main axis of the elongate core and along an entire length of the vibration 10 dampening material, and wherein the at least one end cap washer comprises a stepped portion to allow insertion of the respective end of the elongate core and to interface fit with said vibration dampening material such that the recessed portions of the vibration dampening material are within the stepped portion.
2. The apparatus of claim 1, wherein at least one of the recessed portions comprises a floor and at least one wall .
3. The apparatus of claim 2, wherein the at least one wall is a sloped or curved wall and creates an obtuse angle between the sloped or curved wall and the floor. 20
4. The apparatus of claim 1, wherein the vibration dampening material is an elastomer or rubber.
5. The apparatus of claim 1, wherein there are first and second end cap washers at respective first and second ends of the bush, and the apparatus further comprises two support housings each positioned to abut an outer surface of a respective one 25 of the first and second end cap washers.
6. The apparatus of claim 5, wherein the two support housings are metal.
7. The apparatus of claims 5, further comprising: a retainer to retain the support housings and end cap washers in contact with the bush.
8. The apparatus of claim 7, wherein the retainer is an elongate bolt and nut. 30
9. The apparatus of claim 1, wherein the elongate core is metal.
10. An anti-vibration system, comprising a hull or chassis, a machine which produces vibration during operation, and the anti-vibration apparatus of claim 1, wherein the anti-vibration apparatus is located on the hull or chassis, and wherein the machine abuts the vibration dampening material to reduce vibrations.
11. The system of claim 10, wherein the anti-vibration apparatus further comprises a retainer which is mounted on the chassis or hull and clamps into engagement the 5 vibration dampening material, and the at least one end cap washer with the machine which produces vibration during operation.
12. An anti-vibration apparatus comprising: a substantially rigid elongate core having first and second ends; a vibration dampening material on an outer surface of said elongate core, wherein 10 the vibration dampening material comprises a plurality of recessed portions on its surface that extend axially along the main axis of the elongate core and along an entire length of the vibration dampening material; a first end cap washer configured to cover the first end of the elongate core and receive a first portion of the vibration dampening material, wherein the first end cap 15 washer comprises a stepped portion to allow insertion of the first end of the elongate core and receipt of said first portion of the vibration dampening material; and a second end cap washer configured to cover the second end of the elongate core and receive a second portion of the vibration dampening material, wherein the second end cap washer comprises a stepped portion to allow insertion of the 20 second end of the elongate core and receipt of said second portion of the vibration dampening material.
13. The apparatus of claim 12, wherein at least one of the recessed portions comprises a floor and at least one wall, and wherein the at least one wall is a sloped or curved wall and creates an obtuse angle between the sloped or curved wall and the floor. 25
14. The apparatus of claim 12, wherein the vibration dampening material is an elastomer or rubber, and the elongate core is metal.
15. The apparatus of claim 12, wherein the first and second end cap washers comprise additional vibrational dampening material.
16. The apparatus of claim 15, wherein the additional vibrational dampening material of 30 the first and second end cap washers comprises a plurality of recessed portions on its surface.
17. The apparatus of claim 12, further comprising: a support housing configured to abut an outer surface of the first or second end cap washer; and a retainer to retain the support housing and end cap washers in contact with the elongate core, the retainer including an elongate bolt and nut, the bolt configured to be secured to a surface from which vibrations are to be dampened.
18. The apparatus of claim 1, substantially as herein described with reference to any 5 embodiment disclosed.
19. The apparatus of claim 12, substantially as herein described with reference to any embodiment disclosed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1713366.1A GB2565776B (en) | 2017-08-21 | 2017-08-21 | Anti-vibration mount |
| EP17275124.0A EP3447328A1 (en) | 2017-08-21 | 2017-08-21 | Anti vibration mount |
| PCT/GB2018/052351 WO2019038524A1 (en) | 2017-08-21 | 2018-08-20 | Anti-vibration mount |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ762118A NZ762118A (en) | 2024-11-29 |
| NZ762118B2 true NZ762118B2 (en) | 2025-03-04 |
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