EP0324112B1 - Dispositif d'ajustement pour une vis de réglage - Google Patents

Dispositif d'ajustement pour une vis de réglage Download PDF

Info

Publication number
EP0324112B1
EP0324112B1 EP88120649A EP88120649A EP0324112B1 EP 0324112 B1 EP0324112 B1 EP 0324112B1 EP 88120649 A EP88120649 A EP 88120649A EP 88120649 A EP88120649 A EP 88120649A EP 0324112 B1 EP0324112 B1 EP 0324112B1
Authority
EP
European Patent Office
Prior art keywords
adjusting device
thread
counter
threaded part
thread bolt
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.)
Expired - Lifetime
Application number
EP88120649A
Other languages
German (de)
English (en)
Other versions
EP0324112A3 (en
EP0324112A2 (fr
Inventor
Gerhard Beutler
Edmund Bernhard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brueninghaus Hydraulik GmbH
Original Assignee
Brueninghaus Hydraulik GmbH
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 Brueninghaus Hydraulik GmbH filed Critical Brueninghaus Hydraulik GmbH
Publication of EP0324112A2 publication Critical patent/EP0324112A2/fr
Publication of EP0324112A3 publication Critical patent/EP0324112A3/de
Application granted granted Critical
Publication of EP0324112B1 publication Critical patent/EP0324112B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/328—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the axis of the cylinder barrel relative to the swash plate

Definitions

  • the invention relates to an adjusting device according to the preamble of claim 1.
  • FIG. 5 shows an axial piston machine in a front view
  • FIG. 6 shows the known adjusting device in section as a detail of Axial piston machine shows.
  • the throughput volume is of the inclined axis type which is generally known, so that a detailed description is not required.
  • Only the main components of the axial piston machine 1 shown in FIG. 5 are briefly listed below, namely a housing 2, an input and output shaft 3 (pump / motor) mounted in the housing, and one rotatable in the housing 2 in the sense of the double arrows 4 and 5 as well as pivotably mounted cylinder drum 6 with a plurality of piston bores (not shown) arranged on a pitch circle and essentially axially extending, in which pistons (indicated by center lines) are slidably guided, which are supported on a slideway 7, an adjusting device generally designated 8 with an electric or hydraulic adjustment motor 9 for adjusting an adjustment member 12 which can be adjusted along the double arrow 11 in the form of a slide and which is not shown by a link guide 13 hydraulic control parts as well as with the cylinder drum 6 for the purpose of their adjustment in drive connection, and an adjusting device 15 arranged opposite the adjustment motor 9 for positioning the adjustment member
  • the essential parts of the adjusting device 15 shown as detail X in section and enlarged in FIG. 6 are an adjusting threaded bolt 16, which is resiliently fixed along the axis of the adjusting member 12 by a damping device, generally designated 17, and a lock screw, generally designated 18 to secure the threaded bolt 16 against unintentional adjustment.
  • the adjusting member is accommodated in a shoulder housing part 19, to which a pot-shaped housing shoulder 21, in which the damping device 17 is accommodated, is fastened on its side facing away from the adjusting motor 9.
  • the adjusting member 12 On its side facing away from the adjusting motor 9, the adjusting member 12 is guided longitudinally in a bushing 22, which is simultaneously received in the housing part 19 and in the housing shoulder 21 and centers the latter against one another, the bushing 22 being axially fixed by shoulders 23.
  • the damping device 17 has two axially arranged spring cups 24, each with an outer flange 25, a cylindrical section 26 and an inner flange 27, the cylindrical sections 26 projecting from one another from the outer flanges 25 and the inner flanges 27 being arranged at the inner ends of the cylindrical sections 26 .
  • the cavities enclosed by the spring cups 24 are designated 28 and 29.
  • the outer flanges 25 are clamped in an axially extending compression spring 31, which prestresses the spring cups 24 against shoulders 32, 33, of which the inner shoulder 32 is formed by the bushing 22 and the outer shoulder 33 by an inner flange 34, into which a hat-shaped cover 35 is inserted.
  • the spring cups 24 together with the housing projection 21 represent a holder for the threaded bolt 16, which rests on the inside with a collar 36 and on the outside with a clamping nut 37 on the opposite sides of the inner flanges 27 of the spring cups 24 and is thereby positioned axially; the threaded bolt 16 passes through a shaft 38 corresponding holes in the inner flanges 27 with play.
  • the threaded bolt 16 has the setting thread 42 as an external thread, with which it is screwed into a central blind hole 43 in the adjusting member 12 with a corresponding setting thread 44 as an internal thread.
  • the non-rotatably longitudinal adjustment member 12 can thus be adjusted and thus positioned independently of the adjustment motor 9 from its shown central position to the right and left, namely in the present case in the zero position of the throughput volume setting.
  • an engagement member 46 in the form of an Allen recess is provided at its outer end 45, into which a tool, here an Allen key, can be inserted after removing the cover 35.
  • the threaded bolt 16 has an axial through-bore 47, the inner end section of which represents a threaded bore 48 in which the countersunk screw 18 is screwed in with an engagement element 49.
  • the lock screw is formed with its tip Tension the counter member 51 against the bottom of the blind bore 43, whereby the adjusting member 12 and the threaded bolt 16 are pressed apart for the purpose of locking.
  • the threaded bolt 16 is assigned a further adjusting device 52 at its outer end 45, which is formed by the adjusting thread 54 and the clamping nut 37.
  • the further adjusting device 52 By means of the further adjusting device 52, the distance between the collar 36 and the clamping nut 37 can be precisely adapted to the existing distance between the sides of the inner flanges 27 of the spring cups 24 facing away from one another.
  • the clamping nut 37 designed as an accordion-shaped special nut serves to secure the respective adjustment, ie to prevent unintentional relative rotation between the clamping nut 37 and the threaded bolt 16. It has been shown in practice that in the further adjusting device 52 too There is a risk of unintentional adjustment, in particular if the clamping nut 37 lifts from the associated inner flange 27 during the respective adjustment path of the adjustment member 12.
  • the invention has for its object to improve the adjustment or adjustment between the threaded bolt and the adjusting member.
  • a threaded part is available as an additional clamping part, which because of its thread engagement with the adjusting member engages the latter over a large area and can be effectively locked by turning the counter screw by means of its thread.
  • the threaded section of the threaded bolt consists of two parts which can be braced against one another by means of the central lock screw. This creates an effective fixing device that prevents adjustment of the adjustment.
  • the existing setting thread of the adjusting member is used to receive the threaded part.
  • the counter screw on the threaded bolt can be supported in various ways.
  • the embodiment according to claim 3 is a very simple, practical and inexpensive solution.
  • the configuration according to claim 5 further improves the locking by means of the adjusting device, because the threaded part is prevented from rotating with the locking screw. Such a take away would be particularly problematic when the pitch of the internal and external threads of the threaded part match. In addition, this ensures a distance between the threaded bolt and the threaded part that enables the clamping effect.
  • an additional threaded part 55 with an external thread and an internal thread is provided as the counter element 51, the external thread corresponding to the adjusting thread 44 of the adjusting element 12 and the internal thread corresponding to the external thread 53 of the counter screw 18 and being received on the latter.
  • the counter screw 18 extends through a thread-free axial through-hole 56 in the threaded bolt 16, and it has a screw head 57 with an engagement element (not shown) for a counter tool at its end facing away from the threaded part 55.
  • a stop 61 is provided in the form of a pin or clamping sleeve that passes through the counter screw 18 in a transverse hole, as a result of which the threaded part 55 is held captively on the counter screw 18.
  • the stop 61 also ensures the constant engagement of a claw coupling 62 which is arranged between the threaded bolt 16 and the threaded part 55 and which prevents rotation of the threaded part 55 and by means of a transverse groove 63 in the end face of the threaded bolt 16 facing the threaded part 55 and one in the transverse groove 63 bordering web 64 is formed on the end face of the threaded part 55 facing the threaded bolt 16.
  • an elastic member 65 in the form of an O-ring made of elastic plastic or rubber is arranged, which facilitates the screwing in of the component formed by the threaded bolt 16, the counter screw 18 and the threaded part 55.
  • the counter screw 18 To lock the threaded bolt 16 in the adjusting member 12, the counter screw 18 must be turned clockwise in the presence of a right-hand thread, as a result of which the threaded part 55 is braced against the threaded bolt 16. Because of the length 1 of the counter screw 18, which is considerably greater than that of the known design, it has a considerable degree of expansion, which has a favorable effect on the fixing or locking. It is therefore advantageous to use an expansion screw as a counter screw 18.
  • the clamping nut is formed from two nut parts 66, 67, which have a distance or gap between them and can be braced against one another by at least one, in the present exemplary embodiment, two diametrically opposite lock screws 69.
  • the inner nut part 66 has a threaded hole and the outer nut part 67 has a through hole, preferably with an external depression for the head of the counter screw 69, so that the latter can be operated easily.
  • the at least one lock screw 69 also simultaneously leads to an anti-rotation lock between the nut parts 66, 67.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Transmission Devices (AREA)

Claims (13)

  1. Dispositif d'ajustement (15) pour ajuster un organe de réglage (12) pour un dispositif de réglage (8) d'une machine (1) à pistons axiaux ou radiaux, à débit volumétrique réglable, dans lequel l'organe de réglage (12) est disposé de manière réglable dans un guidage (22) du côté de la machine et présente un alésage (43) avec un filetage (44) de réglage, dans lequel est vissé un goujon fileté de réglage (16) maintenu en étant immobilisé axialement dans un support (21, 24) du côté de la machine, ce goujon (16) se vissant par sa section d'extrémité intérieure (41) présentant un filetage de réglage (42) et étant bloqué dans sa position d'engagement avec l'organe de réglage (12) par un contre-organe (51) disposé dans l'alésage (43) en étant voisin de la section d'extrémité intérieure (41) du goujon fileté de réglage (16), ce contre-organe (51) étant réglable par rapport au goujon fileté de réglage (16) au moyen d'une contre-vis (18) avec un filetage externe, disposée dans un alésage axial traversant le goujon fileté de réglage (16) et prenant appui axialement sur celui-ci,
    caractérisé en ce que le contre-organe (51) est sous la forme d'une pièce filetée cylindrique creuse séparée (55) avec un filetage externe et un filetage interne, au moyen desquels elle se trouve en engagement par vissage avec un filetage interne (44) ménagé dans l'alésage (43) dans l'organe de réglage (12) et avec le filetage externe (53) de la contre-vis (18).
  2. Dispositif d'ajustement selon la revendication 1, caractérisé en ce que le filetage interne (44) se trouvant en engagement avec le filetage externe de la pièce filetée (55), ménagé dans l'alésage (43) de l'organe modificateur de réglage (12) est le filetage de réglage (44) de celui-ci.
  3. Dispositif d'ajustement selon la revendication 1 ou 2, caractérisé en ce que la contre-vis (18) traverse l'alésage continu (56) dans le goujon fileté de réglage (16) et présente une tête de vis (57) qui coopère avec un épaulement (59) ménagé sur le goujon fileté (16) et opposé à la pièce filetée (55).
  4. Dispositif d'ajustement selon la revendication 3, caractérisé en ce que l'épaulement (59) et/ou la tête de vis (57) sont disposés dans la zone de l'extrémité extérieure (45) du goujon fileté (16) opposée à la pièce filetée (55).
  5. Dispositif d'ajustement selon une des revendications 1 à 4, caractérisé en ce qu'un dispositif d'arrêt (62) pour empêcher la pièce filetée (55) de tourner est disposé sur le goujon fileté (16).
  6. Dispositif d'ajustement selon la revendication 5, caractérisé en ce que le dispositif anti-rotation (62) est constitué par un accouplement à griffes (62).
  7. Dispositif d'ajustement selon la revendication 6, caractérisé en ce que l'accouplement à griffes (62) est constitué par une rainure transversale (63) et par un tenon (64) s'engageant dans celle-ci, ménagés respectivement sur les côtés tournés l'un vers l'autre du goujon fileté (16) et de la pièce filetée (55).
  8. Dispositif d'ajustement selon une des revendications 1 à 7, caractérisé en ce que la pièce filetée (55) est protégée contre un dévissage de la contre-vis (18) par une butée (61) sur la contre-vis (18) de préférence sous la forme d'une goupille traversant la contre-vis (18) ou d'une douille de serrage.
  9. Dispositif d'ajustement selon la revendication 8, caractérisé en ce que l'appui de la pièce filetée (55) sur la butée (61) assure l'engagement de l'accouplement à griffes (62).
  10. Dispositif d'ajustement selon une des revendications 1 à 9, caractérisé en ce qu'un organe élastique (65) agissant dans le sens axial, de préférence sous la forme d'un joint torique en caoutchouc ou en matière plastique, est disposé entre le goujon fileté (16) et la pièce filetée (55).
  11. Dispositif d'ajustement selon une des revendications 1 à 10, dans lequel est associé au goujon fileté (16) un dispositif amortisseur (17) bilatéral qui présente deux cuvettes de ressort (24) précontraintes par une force de ressort tendant à les écarter l'une de l'autre contre des épaulements (32, 33) sur lesquels le goujon fileté (16) prend appui, tandis que sur l'extrémité extérieure (45) du goujon fileté (16) est prévu un autre filetage de réglage (54) sur lequel est vissé un écrou (37) pouvant être bloqué par serrage contre une rotation involontaire et prenant appui indirectement ou directement sur la cuvette de ressort (24) extérieure,
    caractérisé en ce que l'écrou (37) se compose de deux parties d'écrou (66, 67) espacées axialement l'une de l'autre, pouvant être serrées axialement par au moins une contre-vis (69) disposée sensiblement parallèlement à l'axe.
  12. Dispositif d'ajustement selon la revendication 11, caractérisé en ce que la contre-vis (69) est vissée dans une (66) des parties d'écrou (66, 67) et prend appui en sens périphérique sur l'autre partie d'écrou (67).
  13. Dispositif d'ajustement selon la revendication 12, caractérisé en ce que la contre-vis (69) traverse la partie d'écrou extérieure (67) dans un trou de passage à partir de l'extérieur et est vissée dans la partie d'écrou intérieure (66).
EP88120649A 1988-01-14 1988-12-09 Dispositif d'ajustement pour une vis de réglage Expired - Lifetime EP0324112B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3800892 1988-01-14
DE3800892A DE3800892A1 (de) 1988-01-14 1988-01-14 Justiervorrichtung fuer einen einstell-gewindebolzen

Publications (3)

Publication Number Publication Date
EP0324112A2 EP0324112A2 (fr) 1989-07-19
EP0324112A3 EP0324112A3 (en) 1990-02-21
EP0324112B1 true EP0324112B1 (fr) 1994-04-06

Family

ID=6345273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120649A Expired - Lifetime EP0324112B1 (fr) 1988-01-14 1988-12-09 Dispositif d'ajustement pour une vis de réglage

Country Status (2)

Country Link
EP (1) EP0324112B1 (fr)
DE (2) DE3800892A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI96149C (fi) * 1994-05-25 1996-05-10 Seppo Metsaelae Hienomekaaninen säätölaite
DE69734684T2 (de) * 1997-12-16 2006-08-10 Seppo Metsälä Feinmechanische querpositionierungsvorrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2079E (fr) * 1903-12-26 Andre Minne Nouveau système de contre-écrou dit contre-écrou rationnel
DE800512C (de) * 1948-10-02 1950-11-13 Paul Steinmetzer Schraubenmutter-Sicherung
US2998733A (en) * 1959-06-02 1961-09-05 Kenneth W Thompson Control device
DE1453657B2 (de) * 1964-07-17 1972-07-06 Brüninghaus Hydraulik GmbH, 7240 Horb Verstelleinrichtung, insbesondere fuer axialkolbenmaschinen
JPS5694019A (en) * 1979-12-26 1981-07-30 Masao Kanazawa Lock bolt
US4466261A (en) * 1980-10-20 1984-08-21 Zimmer John C Security apparatus
DE3413444C2 (de) * 1984-04-10 1986-03-27 Robert Bosch Gmbh, 7000 Stuttgart Sicherungs- und Anzeigevorrichtung gegen unbefugtes Verstellen einer Schraube
FR2566483B1 (fr) * 1984-06-21 1991-10-04 Cuilleron J Ecrou a double effet permettant le reglage et le rattrapage des jeux dans les assemblages mecaniques filetes
DE3433738A1 (de) * 1984-09-14 1986-03-20 Fa. Carl Zeiss, 7920 Heidenheim Einrichtung zur lagemaessigen fixierung eines gewindebolzens
CH666093A5 (de) * 1985-05-30 1988-06-30 Sulzer Ag Schraubverbindung.

Also Published As

Publication number Publication date
DE3888956D1 (de) 1994-05-11
EP0324112A3 (en) 1990-02-21
DE3800892A1 (de) 1989-07-27
EP0324112A2 (fr) 1989-07-19

Similar Documents

Publication Publication Date Title
DE2339873C2 (de) Anordnung zum Einstellen und Befestigen eines ein Schneidplättchen tragenden Blocks in einer nutförmigen Aufnahme im Werkzeugkörper eines spanabhebenden Werkzeugs
EP0602204B1 (fr) Element intermediaire pour dispositifs de serrage sur plaques a matrice de trous de machine-outil
DE3610284C2 (fr)
EP0039765B1 (fr) Dispositif pour le montage de plaques flexibles sur un cylindre de plaques pour rotatives
DE102007030876B4 (de) Werkzeug zur spanabtragenden Bearbeitung von Werkstücken
DE3929802C1 (fr)
DE19824692A1 (de) Ausrichteinrichtung
DE3928876C2 (de) Einrichtung zum Justieren eines Stoßfängers an einem Kraftfahrzeug
EP0324112B1 (fr) Dispositif d'ajustement pour une vis de réglage
DE3029133C2 (de) Werkzeughalter
DE2141366A1 (de) Werkzeug zur Montage bzw. Demontage von Schraubenfeder-Stoßdämpfern und Verfahren unter Verwendung dieses Werkzeuges
DE3634118A1 (de) Ausrichtsegment zum aufspannen einer formplatte auf einem werkzeugmaschinentisch
DE2953815C2 (de) Gummituchspannvorrichtung
EP0308645B1 (fr) Vis d'extension pour le redressement des dents
DE2158779A1 (de) Nachstellbare Maschinenreibahle
EP0598165A1 (fr) Dispositif pour assembler des pièces de façon tournante, par exemple leviers à lames, entraîneurs de lames et métiers à tisser pourvu d'un tel dispositif
DE4407270C1 (de) Schneidplatten-Einstellvorrichtung
EP1134440B1 (fr) Ensemble de connexion
DE19750614C2 (de) Vorrichtung zum Verändern des Verdrängungsvolumens einer hydrostatischen Maschine
EP0919729A2 (fr) Vérin avec tige de piston guidé sans rotation
AT387823B (de) Hilfseinrichtung fuer eine betaetigungsstange der an pumpen-duesenaggregaten von einspritz-brennkraftmaschinen vorgesehenen regelglieder
EP1473538B1 (fr) Glissière de mesure
WO2009080002A1 (fr) Dispositif de réglage fin à broche filetée
EP0255706B1 (fr) Dispositif de réglage de la position relative d'éléments de construction, en particulier dispositif de tension pour transmission à organe flexible sans fin
DE3009288A1 (de) Zweikreisdruckregler

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE GB IT SE

17P Request for examination filed

Effective date: 19900307

17Q First examination report despatched

Effective date: 19920909

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT SE

REF Corresponds to:

Ref document number: 3888956

Country of ref document: DE

Date of ref document: 19940511

ITF It: translation for a ep patent filed

Owner name: JACOBACCI CASETTA & PERANI S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940712

EAL Se: european patent in force in sweden

Ref document number: 88120649.4

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20061213

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20061218

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20061221

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061231

Year of fee payment: 19

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20071209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080701

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071209