CS229778B1 - Adjustable friction damper - Google Patents
Adjustable friction damper Download PDFInfo
- Publication number
- CS229778B1 CS229778B1 CS908182A CS908182A CS229778B1 CS 229778 B1 CS229778 B1 CS 229778B1 CS 908182 A CS908182 A CS 908182A CS 908182 A CS908182 A CS 908182A CS 229778 B1 CS229778 B1 CS 229778B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- housing
- friction
- rubber spring
- rod
- friction damper
- Prior art date
Links
- 238000013016 damping Methods 0.000 claims description 14
- 239000011888 foil Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Vibration Dampers (AREA)
Description
(54) Třecí tlmič kmitov s nastavitelným tlmiacim účinkom(54) Friction damper with adjustable damping effect
229 778229 778
229 778229 778
Vynález sa týká trecieho tlmiča kmitov s nastavitelným tlmiacim účinkom.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a vibration damper with adjustable damping effect.
Sú známe trecie tlmiče kmitov, kde tlmiaci účinok sa dosahuje vzájomným třením dvoch plóch, ktoré sú k sebe navzájom pri tlačované. V závislosti na druhu a určení tlmiča sú trecie plochy buč rovinné, válcové alebo kuželové. Vzájomné pritláčanie třecích plóch je najčastejšie riešené pomocou špirálovej alebo valcovej pružiny, skrutky, pákových mechanizmov, alebo kombináciou týchto spósobov. Nevýhodou týchto riešení je, že u váčšiny sa nedá nastavovat tlmiaci účinok, alebo nemajú požadovanú životnost a niektoré sú pre velkosériovú výrobu poměrně zložité.Friction vibration dampers are known, where the damping effect is achieved by the friction of two surfaces which are pressed against each other. Depending on the type and design of the damper, the friction surfaces are either flat, cylindrical or conical. The mutual pressing of the friction surfaces is most often solved by means of a helical or cylindrical spring, a screw, a lever mechanism, or a combination of these methods. The disadvantage of these solutions is that the damping effect cannot be adjusted for most, or they do not have the desired service life, and some are relatively complex for large-scale production.
Vyššie uvedené nedostatky odstraňuje třecí tlmič s nastavitelným tlmiacim účinkom podlá vynálezu, ktorého podstatou je, že tlmiaci účinok sa dosahuje třením medzi válcovým tiahlom a trecou samomaznou fóliou vloženou medzi válcové tiahlo a gumovú pružinu tak, že trecia folia je pritláčaná k tiahlu gumovou pru žinou, uloženou v puzdre medzi dvorná přítlačnými kotúčmi, z kto tých jeden sa opiera o puzdro a druhý je cez vymedzovacie podložky pritláčaný ku gumovej pružině vekom upínaným k puzdru. Tl miaci účinok je úměrný stlačeniu gumovej pružiny, ktorého velkost sa nastavuje hrúbkou vymedzovacich podložiek.The above-mentioned drawbacks are eliminated by a friction damper with an adjustable damping effect according to the invention, which is based on the fact that the damping effect is achieved by friction between the cylindrical rod and the friction self-lubricating foil inserted between the cylindrical rod and the rubber spring. located in the housing between the yard thrust discs, one of which bears against the housing and the other is pressed against the rubber spring through the lids clamped to the housing through the spacer pads. The damping effect is proportional to the compression of the rubber spring, the size of which is adjusted by the thickness of the spacers.
□e výhodné, ak puzdro, přítlačné kotúče, veko a vodiace puzdro sú vyrobené z plastov.It is preferred that the housing, the pressure discs, the lid and the guide housing are made of plastics.
Výhodou tohoto riešenia je, že životnost trecej fólie přesahuje požadovanú životnost tlmičov. Avšak v případe jej opotre benia možno túto lahko vyměnit, čím sa životnost tlmiča opat predlži. Ďalšou výhodou je, že velkosťou stlačenia gumovej pružiny možno v širokom rozmedzí regulovat tlmiaci účinok treciehoThe advantage of this solution is that the service life of the friction film exceeds the required service life of the dampers. However, in the event of wear it can easily be replaced, thereby extending the service life of the damper. Another advantage is that by the amount of compression of the rubber spring, the damping effect of the friction can be controlled over a wide range
229 778 tlmiča. Výrobou puzdra, přítlačných kotúčov, veka a vodiaceho puzdra z plastov sa dosiahnu nízké výrobně náklady a značná úspora kovových^materiálov.229 778 silencer. By manufacturing the sleeve, the pressure discs, the lid and the guide sleeve made of plastics, low production costs and a considerable saving of metal materials are achieved.
Na pripojenom výkrese je znážbrňený příklad vyhotovenia trecieho tlmiča s nastavitelným tlmiacim účinkom podlá vynálezu.An exemplary embodiment of an adjustable damping friction damper according to the invention is shown in the accompanying drawing.
Kmitajúca sústava <L je na ráme 2 pružné uložená pomocou trecieho tlmiča tak, že puzdro 3 trecieho tlmiča je prostrednictvom skrutky 4 a matice 5 cez gumové podložky 6 spojené s rámom 2_. Kmitajúca sústava 1, je pomocou matice 51 a gumových podložiek 61 spojená s tiahlom 7. 0 druhý koniec tiahla 7 sa cez podložku Q a vodiace puzdro 9. opiera válcová pružina 10, ktorej druhý koniec sa opiera o puzdro 3.. Puzdro 3, je zo strany kmitajúcej sústavy 1 uzavreté vekom 11, ktoré cez vymedzovacie podložky 12 stláča gumovú pružinu 13, uloženú medzi dvorná přítlačnými kotúčmi 14, z ktorých jeden sa opiera o puzdro 3. a druhý cez vymedzovacie podložky 12 o veko 11. Medzi gumovú pružinu 13 a tiahlo 7 je vložená trecia folia 15.The oscillating assembly L is resiliently mounted on the frame 2 by means of a friction damper such that the friction damper housing 3 is connected to the frame 2 by means of a screw 4 and a nut 5 via rubber washers 6. The oscillating assembly 1 is connected by means of a nut 51 and rubber washers 61 to the pull rod 7. The other end of the pull rod 7 is supported by a washer Q and guide bush 9 supported by a cylindrical spring 10 whose other end bears against bush 3. from the side of the oscillating assembly 1 closed by a lid 11, which compresses a rubber spring 13 between the shims 12 between the yard thrust discs 14, one of which bears on the housing 3 and the other over the shims 12 on the lid 11. Between the rubber spring 13 and a rod 7 is inserted with a friction film 15.
Rám 2 zachytává kmity vyvodzované kmitájúcou súetavou cez gumové podložky 61, tiahlo 7, valcovú pružinu 10, puzdro 3. a gumové podložky 6. K tlmeniu kmitov dochádza následkom trenia medzi tiahlom 7 a trecou foliou 1.5, pričom tlmiaci účinok je závislý od sily, akou je trecia folia 15 pritláčaná k tiahlu 7. Pritlačnú silu vyvodzuje gumová pružina 13 a jej velkost je pria mo úměrná stlačeniu gumovej pružiny 13 uloženej medzi přítlačnými kotúčmi 14, z ktorých jeden sa opiera o puzdro 25 a druhý cez vymedzovacie podložky 12 o veko 11 upnuté k puzdru 3. Hrúbkou vymedzovacích podložiek 12 sa nastavuje stlačenie gumovej pružiny 13 a tým aj valkosť tlmiaceho účinku trecieho tlmiča.The frame 2 catches the oscillations generated by the oscillating competition through the rubber pads 61, the rod 7, the cylindrical spring 10, the sleeve 3. and the rubber pads 6. The damping occurs as a result of the friction between the rod 7 and the friction foil 1.5. The friction foil 15 is pressed against the pull rod 7. The compression force is exerted by a rubber spring 13 and its size is proportional to the compression of the rubber spring 13 between the thrust disks 14, one resting on the sleeve 25 and the other over the shims 12 clamped on the lid 11 The thickness of the spacers 12 adjusts the compression of the rubber spring 13 and thus the valency of the damping effect of the friction damper.
Třecí tlmič kmitov s nastavitelným tlmiacim účinkom podlá vynálezu je možné s výhodou použiť v automatických práčkach, motocykloch, alebo v iných zariadeniach, kde je nutné tlmiť kmity vyvolaná rotáciou nevyvážených hmót, připadne iných sekundárných sil.The adjustable damping friction damper according to the invention can advantageously be used in automatic washing machines, motorcycles, or in other devices where it is necessary to damp the oscillations caused by the rotation of unbalanced masses or other secondary forces.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS908182A CS229778B1 (en) | 1982-12-13 | 1982-12-13 | Adjustable friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS908182A CS229778B1 (en) | 1982-12-13 | 1982-12-13 | Adjustable friction damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS229778B1 true CS229778B1 (en) | 1984-06-18 |
Family
ID=5442120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS908182A CS229778B1 (en) | 1982-12-13 | 1982-12-13 | Adjustable friction damper |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS229778B1 (en) |
-
1982
- 1982-12-13 CS CS908182A patent/CS229778B1/en unknown
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