DK143913B - SHOCK ABSORBER - Google Patents

SHOCK ABSORBER Download PDF

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Publication number
DK143913B
DK143913B DK577976AA DK577976A DK143913B DK 143913 B DK143913 B DK 143913B DK 577976A A DK577976A A DK 577976AA DK 577976 A DK577976 A DK 577976A DK 143913 B DK143913 B DK 143913B
Authority
DK
Denmark
Prior art keywords
cylinder
cover
shock absorber
ring
sealing ring
Prior art date
Application number
DK577976AA
Other languages
Danish (da)
Other versions
DK577976A (en
DK143913C (en
Inventor
C D Kock
Original Assignee
Itt
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 Itt filed Critical Itt
Publication of DK577976A publication Critical patent/DK577976A/en
Publication of DK143913B publication Critical patent/DK143913B/en
Application granted granted Critical
Publication of DK143913C publication Critical patent/DK143913C/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/36Special sealings, including sealings or guides for piston-rods
    • F16F9/362Combination of sealing and guide arrangements for piston rods
    • F16F9/363Combination of sealing and guide arrangements for piston rods the guide being mounted between the piston and the sealing, enabling lubrication of the guide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J10/00Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02Cylinders designed to receive moving pistons or plungers

Description

1 1439131 143913

Opfindelsen angår en støddæmper af den i kravets indledning angivne art. Ved en sådan støddæmper kan endedækslet påsættes ved en rent aksial bevægelse, hvilket navnlig er fordelagtigt, når støddæmperen er af den art, der er fyldt med en højkompri-5 meret luftart.The invention relates to a shock absorber of the kind specified in the preamble of the claim. In such a shock absorber, the end cap can be applied by a purely axial movement, which is particularly advantageous when the shock absorber is of the kind filled with a highly compressed gas type.

Fra svensk fremlæggelsesskrift nr. 359 628 kendes en lineær hydraulisk servomotor i form af en cylinder med et stempel, hvis stempelstang går igennem det ene endedæksel, som er fastholdt i cylinderens endedel ved hjælp af en låsering, der 10 ligger i to over for hinanden beliggende noter i henholdsvis cylindervæggen og dækslet,' Til tætning af forbindelsen mellem de to dele findes en O-ring, som ligger i et spor i dækslet.Swedish Patent Specification No. 359 628 discloses a linear hydraulic servomotor in the form of a cylinder with a piston, the piston rod of which passes through one end cover which is held in the end portion of the cylinder by means of a locking ring which is located in two opposite one another. notes in the cylinder wall and cover, respectively, 'For sealing the connection between the two parts, there is an O-ring located in a groove in the cover.

Denne kendte konstruktion giver ikke sikkerhed for en effektiv tætning, som kan modstå de høje tryk, der kan forekomme 15 i en støddæmper med højkomprimeret luftart.This known construction does not guarantee an effective seal which can withstand the high pressures that can occur in a shock absorber with highly compressed gas.

Fra engelsk patentskrift nr. 1 055 324 kendes en lignende cylinder, hvor endedækslet imidlertid ligesom det her omhandlede har en flange, der strækker sig ud over cylinderens endeflade. Dækslet bærer en inde i cylinderen liggende ring, 20 som ved hjælp af skruer kan spændes ind mod en skulder på dækslet og ved kilevirkning mellem to skrå flader på ringen og dækslet kan presse en fjederring med tilsvarende skrå flader ud mod bunden af en not i cylinderfladen. Også denne cylinder har kun en mellem cylinderflader anbragt tætningsring 25 til tætning mellem dæksel og cylinder.English patent specification 1 055 324 discloses a similar cylinder, however, the end cap, like the present invention, has a flange extending beyond the end surface of the cylinder. The cover carries an inner ring 20 which can be tightened by means of screws to a shoulder on the cover and by wedge action between two inclined faces of the ring and the cover can push a spring ring with corresponding inclined faces towards the bottom of a groove in the cylinder surface. . Also, this cylinder has only one sealing ring 25 for sealing between cover and cylinder.

Opfindelsen har til formål at angive en støddæmper af den omhandlede art, som gør det muligt at tilvejebringe et bestemt ønsket anlægstryk mellem den elastiske tætningsring, endedækslet og cylinderen, og som desuden er let at samle.The invention has for its object to provide a shock absorber of the kind in question which makes it possible to provide a certain desired abutment pressure between the elastic sealing ring, the end cover and the cylinder and which is furthermore easy to assemble.

30 Dette formål opnås ved, at støddæmperen er udformet som angivet i kravets kendetegnende del. Den koniske flade på cylinderens endedel fungerer ikke alene som anlægsflade for tætningsringen, men tjener også til at styre fjederringen ind i cylinderen under dækslets påsætning. Den skrå anlægs-35 flade bevirker, at forholdet mellem en given aksial bevæ- 2 143313 gelse af dækslet i forhold til cylinderen og den deraf forårsagede ændring af tætningsringens anlægstryk bliver større, end det ville være, hvis tætningsringen var anbragt mellem flader, der står vinkelret på cylinderaksen. Derved mulig-5 gøres en mere præcis afpasning af anlægstrykket.This object is achieved by the shock absorber being designed as specified in the characterizing part of the claim. The tapered surface of the end portion of the cylinder not only acts as the abutment surface of the sealing ring, but also serves to guide the spring ring into the cylinder during cover insertion. The inclined abutment surface causes the ratio between a given axial movement of the cover relative to the cylinder and the consequent change in the abutment pressure of the sealing ring to be greater than it would be if the sealing ring was disposed between surfaces which are standing. perpendicular to the cylinder axis. This allows a more precise adjustment of the system pressure.

En del af en udførelsesform for støddæmperen ifølge opfindelsen er vist i aksialt snit på tegningen og skal i det følgende beskrives nærmere under henvisning dertil.Part of an embodiment of the shock absorber according to the invention is shown in axial section in the drawing and will be described in more detail below with reference thereto.

På tegningen er 1 en cylinder med et endedæksel 2, som en 10 stempelstang 3 går igennem. En tætningsring 4 etablerer tætning mellem stempelstangen 3 og dækslet 2. Dette dæksel har en flange 5, og cylinderen 1 er ved endefladen 7 udformet med en konisk flade 8.In the drawing, 1 is a cylinder with an end cap 2 through which a piston rod 3 passes. A sealing ring 4 establishes a seal between the piston rod 3 and the cover 2. This cover has a flange 5, and the cylinder 1 is formed at the end surface 7 with a tapered surface 8.

I en reces 6 under flangen 5 er der anbragt en tætningsring 15 9, som ligger an imod den koniske flade 8. Dækslet 2 er end videre udformet med en ringformet not 10, og cylinderen 1 har tilsvarende en ringformet not 11, der nedadtil begrænses af en konisk vægdel 12 for at lette indføringen af endedækslet 2 i cylinderen 1. I de to noter 10 og 11 ligger en fje-20 derring 13.In a recess 6 below the flange 5, a sealing ring 15 9 is placed which abuts the conical surface 8. The cover 2 is furthermore formed with an annular groove 10, and the cylinder 1 has an annular groove 11, which is limited downwards by a conical wall portion 12 to facilitate the insertion of the end cover 2 into the cylinder 1. In the two grooves 10 and 11 lies a spring ring 13.

Fastgørelsen af endedækslet 2 til cylinderen. 1 sker på følgende måde:Attaching the end cover 2 to the cylinder. 1 is as follows:

Endedækslet 2 forsynes med tætningsringen 9 og fjederringen 13, der har en større diameter end noten 11 i cylinderen 1.The end cover 2 is provided with the sealing ring 9 and the spring ring 13 having a larger diameter than the groove 11 in the cylinder 1.

25 Endedækslet 2 føres ind i cylinderen 1, hvorved fjederringen 13 trykkes ind i noten 10 ved hjælp af den koniske flade 8. Tætningsringen 9 bliver trykket sammen, før endedækslet 2 når sin endeposition. Tætningsringen 9 har en meget begrænset mulighed for at bevæge sig mellem flangen 5 og cy-30 linderendefladen 7. Fjederringen 13 springer ind i noten 11, når noterne 10 og 11 er kommet på linie med hinanden.The end cover 2 is inserted into the cylinder 1, whereby the spring ring 13 is pressed into the groove 10 by means of the conical surface 8. The sealing ring 9 is compressed before the end cover 2 reaches its end position. The sealing ring 9 has a very limited opportunity to move between the flange 5 and the cylinder end surface 7. The spring ring 13 springs into the groove 11 when the grooves 10 and 11 are aligned.

tt

DK577976A 1975-12-29 1976-12-22 SHOCK ABSORBER DK143913C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7515114 1975-12-29
NL7515114A NL7515114A (en) 1975-12-29 1975-12-29 FIXING THE CYLINDER COVER IN A SHOCK ABSORBER.

Publications (3)

Publication Number Publication Date
DK577976A DK577976A (en) 1977-06-30
DK143913B true DK143913B (en) 1981-10-26
DK143913C DK143913C (en) 1982-04-13

Family

ID=19825098

Family Applications (1)

Application Number Title Priority Date Filing Date
DK577976A DK143913C (en) 1975-12-29 1976-12-22 SHOCK ABSORBER

Country Status (12)

Country Link
JP (1) JPS5926819B2 (en)
AU (1) AU504230B2 (en)
BE (1) BE849942A (en)
BR (1) BR7608387A (en)
DE (1) DE2654056A1 (en)
DK (1) DK143913C (en)
ES (1) ES454628A1 (en)
FR (1) FR2337283A1 (en)
GB (1) GB1514029A (en)
IT (1) IT1065832B (en)
NL (1) NL7515114A (en)
SE (1) SE7614507L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8204972A (en) * 1982-12-23 1984-07-16 Noord Nederlandsche Maschf CYLINDER HEAD FIXING CONSTRUCTION.
DE3901526C1 (en) * 1989-01-20 1990-01-04 Bdt Buero- Und Datentechnik Gmbh, 7210 Rottweil, De
DE4424477A1 (en) * 1994-07-12 1995-09-14 Fichtel & Sachs Ag Reconditioning method for vibration damper
FR2723624B1 (en) * 1994-08-10 1996-10-25 Soframca PRESSURIZED HYDRAULIC SHOCK ABSORBER PROVIDED WITH AN AXISALLY IMMOBILIZED RELAXATION STOP ELEMENT
JP7258142B2 (en) * 2018-11-26 2023-04-14 エバーシーン リミテッド Systems and methods for process realization

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2020964C3 (en) * 1970-04-29 1974-08-29 Fichtel & Sachs Ag, 8720 Schweinfurt Sealing guide arrangement for vibration dampers or pneumatic or hydropneumatic suspension

Also Published As

Publication number Publication date
IT1065832B (en) 1985-03-04
DK577976A (en) 1977-06-30
JPS5926819B2 (en) 1984-06-30
NL7515114A (en) 1977-07-01
FR2337283A1 (en) 1977-07-29
BR7608387A (en) 1977-12-13
ES454628A1 (en) 1977-12-01
AU2058976A (en) 1978-06-22
GB1514029A (en) 1978-06-14
DE2654056A1 (en) 1977-07-07
SE7614507L (en) 1977-06-30
AU504230B2 (en) 1979-10-04
JPS5284373A (en) 1977-07-13
DK143913C (en) 1982-04-13
BE849942A (en) 1977-06-29
FR2337283B1 (en) 1980-06-06

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