EP1653088A2 - Vérin avec butée réglable - Google Patents

Vérin avec butée réglable Download PDF

Info

Publication number
EP1653088A2
EP1653088A2 EP05109555A EP05109555A EP1653088A2 EP 1653088 A2 EP1653088 A2 EP 1653088A2 EP 05109555 A EP05109555 A EP 05109555A EP 05109555 A EP05109555 A EP 05109555A EP 1653088 A2 EP1653088 A2 EP 1653088A2
Authority
EP
European Patent Office
Prior art keywords
spacers
piston rod
cylinder
arrangement according
stop position
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.)
Granted
Application number
EP05109555A
Other languages
German (de)
English (en)
Other versions
EP1653088B1 (fr
EP1653088A3 (fr
Inventor
Robert Edwin Bennett
William Douglas Graham
Kevin William Hoehn
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.)
Deere and Co
Original Assignee
Deere and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35695647&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1653088(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Deere and Co filed Critical Deere and Co
Publication of EP1653088A2 publication Critical patent/EP1653088A2/fr
Publication of EP1653088A3 publication Critical patent/EP1653088A3/fr
Application granted granted Critical
Publication of EP1653088B1 publication Critical patent/EP1653088B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke

Definitions

  • the invention relates to a cylinder assembly comprising a cylinder having a cylinder housing and a retractable and extendable projecting from the cylinder housing piston rod, and a spacer assembly comprising a support and a plurality of movable spacers connected to the carrier, wherein the spacers in a storage position and can be pivoted into a stop position and wherein the spacers form a mechanical stop in the stop position and limit the retraction of the piston rod relative to the cylinder housing to define a stop position for the piston rod, wherein the stop position depends on the number of shims placed in the stop position.
  • hydraulic cylinders are often used. Usually these cylinders are fully off at maximum frame height and fully retracted at minimum frame height. When the cylinders are fully and partially retracted, the tilling or sowing devices mounted on the frame are engaged with the ground. In order to maintain a desired ground engagement depth, it is necessary to control the length of the cylinders accurately and reproducibly. Other agricultural equipment and other cylinder operated devices are subject to similar conditions regarding cylinder stroke control.
  • the object underlying the invention is seen to provide a cylinder arrangement of the type mentioned, by which the aforementioned problems are overcome.
  • a cylinder arrangement of the type mentioned above is formed such that the spacer assembly is connected adjacent to the piston rod with the cylinder, the spacers one to the Have adapted piston rod shape and removed in the stored position of the piston rod and in the stop position surrounding the piston rod, wherein the stop between the cylinder housing and the piston rod is formed.
  • a bearing mechanism which is mounted either on the piston rod end or on the cylinder housing, carries a plurality of spacers, which can be pivoted between a storage position and a stop position.
  • a selected number of shims are positioned between the piston rod end and the piston rod guide in stop position to limit the amount of cylinder return.
  • the individual spacers are pivotable between the positions on a pivot shaft located parallel to the cylinder center longitudinal axis.
  • a pivotable and spring-biased locking lever engages formed on the spacer profile recesses to lock individual spacers each in the storage or stop position.
  • the stop member may be either a piston rod end or a piston rod guide, depending on the bearing mechanism for the spacers.
  • the thicker fixed spacers are held by bolts or other suitable fasteners.
  • the spacer package described allows compared to systems that the hydraulic fluid in the cylinder limit, a more precise, reproducible and more constant control of the cylinder reset (length control of the hydraulic cylinder). The susceptibility to different response of valves and hydraulic seal leakage are eliminated.
  • the spacer package described allows a more precise and easier adjustable cylinder control compared to systems clamped to the cylinder piston rod.
  • the spacer package may have thin spacers of equal thickness to ensure a simple counting process for determining the entire thickness. Alternate spacer shapes facilitate the counting and adjustment process, especially when the operator is wearing gloves.
  • the fixed spacers make it easy to change setting ranges with less weight and effort and more flexibility than with multiple thin spacers.
  • the cylinder-mounted spacer packages described above have reduced dimensions, cost, and strength requirements over mechanical stops mounted to a rod-cylinder linkage.
  • the spacer packs mounted on the cylinder limit hydraulically generated return stroke loads in the cylinder and on the spacer pack assembly itself, rather than transferring them to a linkage, thereby reducing the strength requirements on the linkage.
  • the above described cylinder-mounted spacer packages facilitate more reproducible and more consistent adjustments over helical stops mounted on the cylinder.
  • a simple count of the intervening spacers allows for quick selection and Determination of the setting.
  • the spacer pack assembly also overcomes corrosion problems that can occur with threaded connections, and the alternate shim shapes form finger holders to more easily distinguish adjacent shims as they are pivoted between their stop and storage positions.
  • the alternate spacer shapes also facilitate the counting process of the spacers for precise and reproducible adjustment.
  • a hydraulic cylinder 10 comprises a cylinder housing 12 with a piston bottom end 14 and a piston rod end 16.
  • a piston rod 18 is provided with a cylinder housing 12 mounted conventional piston (not shown).
  • Hydraulic connections 20, 22 on the piston rod end 16 and the piston bottom end 14 are connected to a pressurized hydraulic source and open on opposite sides of the piston in the cylinder housing 12 by pressurizing the hydraulic port 20 relative to the hydraulic port 22, the piston rod 18 and by pressurizing the hydraulic connection 22 extended relative to the hydraulic port 20.
  • a spacer pack assembly 30 is connected to the cylinder 10.
  • the spacer pack assembly 30 includes a carrier 32 which carries a plurality of movable spacers 34 pivotally, wherein the spacers 34 have recesses 36 which are adapted to the piston rod 18 substantially.
  • the spacers 34 are pivotable by 180 ° between a storage position 34a, in which they are removed from the piston rod 18, and a stop position 34b, in which the recesses 36 substantially enclose the piston rod.
  • the spacers 34 are in the stop position 34b, a mechanical stop between one end 12e of the cylinder housing 12 and an end 38 of the piston rod 18.
  • the insertion length of the piston rod 18 is dependent on the number of spacers 34 which were placed in stop position 34b.
  • the carrier 32 is connected to the end 38 of the piston rod 18 to move with the piston rod 18.
  • the carrier 32 may also be connected to the cylinder housing 12, if desired.
  • a piston rod holder 40 includes side flaps 42 which are connected to a piston rod connection part 44 and extend to a arranged on a coupling sleeve 47 of the piston rod 18 transverse plate 46.
  • Mounting bolts 48, 50, 52 extend through the transverse plate 46 into a first support plate 60 and clamp an area-adjusting fixed spacer 62 between the transverse plate 46 and the support plate 60.
  • An operator may have multiple fixed spacers 62 of different thicknesses, usually exceeding a combined thickness of multiple movable spacers 34, and the thickness of the selected fixed spacer determines the range of adjustment provided by the movable spacers 34.
  • Bolts 70, 72, 74 extend through the first support plate 60 into provided openings of a second support plate 76 and by spacer sleeves 80, 82, 84, and secure the second support plate 76 parallel spaced from the first support plate 60 on the opposite side of the spacers 34th End portions on the spacers 34 opposite the end portions with the recesses 36 have openings through which the spacer sleeve 82 is guided to pivot the spacers 34 about an axis parallel to the longitudinal axis of the piston rod 18 but spaced therefrom.
  • the spacers 34 are based in their storage position 34a on the spacer sleeve 80 from.
  • the recesses 36 of the spacers 34 surround the piston rod 18, so that the spacers 34, the support plates 46, 60 and the fixed spacer 62 during insertion of the piston rod 18 in the cylinder 10 form a fixed stop for the piston rod 18 .
  • An arresting device 90 is provided which is also mounted between the support plates 60, 76 for selectively locking the spacers 34 in either the storage position 34a or in the stop position 34b.
  • the spacers 34 have a first set of recesses 92 and a second set of recesses 94, which is arranged offset by 180 ° about the pin 72.
  • Locking device 90 includes a spring biased rod or latch 100 which engages recesses 92, 94 and is aligned with the underside of shims 34 (as shown in Figs. 1 and 2) to both shims 34 in the stored position 34a as well as in the stop position 34b secure.
  • An arresting lever 104 is provided, with which the latch 100, within guide openings 108, can be forced out of the bottom aligned recesses 92, 94 out in a downward direction to permit pivoting of the spacers 34.
  • a spring structure 112 biases the locking lever 104 and the latch 100 about the axis of the bolt 70 in the direction of a locking position for the spacers 34.
  • the pivotable spacers 34 are formed differently at locations 134 to facilitate operation of the spacers 34 during pivoting between the two positions 34a, 34b.
  • the different configurations of the spacers have staggered shoulders 136 which allow the operator to accurately count the shims for precise depth adjustment.
  • the designs further facilitate the separation and movement of the spacers between the positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Basic Packing Technique (AREA)
EP05109555A 2004-10-29 2005-10-13 Vérin avec butée réglable Expired - Lifetime EP1653088B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/978,047 US7044047B1 (en) 2004-10-29 2004-10-29 Cylinder mounted stroke control

Publications (3)

Publication Number Publication Date
EP1653088A2 true EP1653088A2 (fr) 2006-05-03
EP1653088A3 EP1653088A3 (fr) 2008-09-03
EP1653088B1 EP1653088B1 (fr) 2010-09-22

Family

ID=35695647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05109555A Expired - Lifetime EP1653088B1 (fr) 2004-10-29 2005-10-13 Vérin avec butée réglable

Country Status (7)

Country Link
US (1) US7044047B1 (fr)
EP (1) EP1653088B1 (fr)
AR (1) AR051235A1 (fr)
AU (1) AU2005227411B2 (fr)
DE (1) DE502005010285D1 (fr)
ES (1) ES2352842T3 (fr)
RU (1) RU2381390C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013178562A1 (fr) * 2012-05-31 2013-12-05 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Machine agricole de travail du sol

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088063B8 (fr) * 2008-02-11 2012-12-12 Manitowoc Crane Companies, LLC Culbuteur de commande et entraînement à chenille pour véhicules mobiles, notamment des grues de levage
JP5504539B2 (ja) * 2011-04-13 2014-05-28 Ｓｍｃ株式会社 リニアアクチュエータ
DE102014116328A1 (de) * 2014-11-10 2016-05-12 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Zylinderanordnung mit einstellbarem Anschlag
DE102014117940A1 (de) 2014-12-05 2016-06-09 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Zylinderanordnung
DE102015112351A1 (de) 2015-07-29 2017-02-02 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Zylinderanordnung
GB201612239D0 (en) * 2016-07-14 2016-08-31 Agco Int Gmbh Hydraulic cylinder for utility vehicle
CN108825566B (zh) * 2018-09-06 2024-11-29 重庆齿轮箱有限责任公司 一种工程机械及其液压传动装置
US10844883B2 (en) 2018-12-12 2020-11-24 Great Plains Manufacturing, Inc. Spacer assembly for a hydraulic cylinder
CA3217086A1 (fr) * 2021-04-30 2022-11-03 Daniel Kirk Stanley Molder Systeme de gestion de residus pour ensemble agricole rayonneur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073345A (en) 1977-02-14 1978-02-14 Miller Maurice E Disc harrow wheel lock-down with depth control adjustment structure
US5988293A (en) 1998-05-12 1999-11-23 Deere & Company Gauge structure for a cylinder operated depth control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082256A5 (fr) * 1970-03-09 1971-12-10 Dunlop Ltd
US4373851A (en) * 1980-10-09 1983-02-15 Confoey Richard J Bulldozer and backhoe lock device
SU1481511A1 (ru) * 1987-05-07 1989-05-23 Конструкторско-технологическое бюро "Мосоргстройматериалы" Приспособление дл ограничени хода штока силового цилиндра привода перемещени толкател
US6520067B1 (en) * 2001-12-12 2003-02-18 Michael H. Hunt Hydraulic piston locking device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073345A (en) 1977-02-14 1978-02-14 Miller Maurice E Disc harrow wheel lock-down with depth control adjustment structure
US5988293A (en) 1998-05-12 1999-11-23 Deere & Company Gauge structure for a cylinder operated depth control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013178562A1 (fr) * 2012-05-31 2013-12-05 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Machine agricole de travail du sol
EA027031B1 (ru) * 2012-05-31 2017-06-30 Амазонен-Верке Х. Дрейер Гмбх Энд Ко. Кг Сельскохозяйственное почвообрабатывающее устройство

Also Published As

Publication number Publication date
AU2005227411B2 (en) 2011-03-17
US7044047B1 (en) 2006-05-16
RU2005133408A (ru) 2007-05-10
EP1653088B1 (fr) 2010-09-22
US20060090640A1 (en) 2006-05-04
RU2381390C2 (ru) 2010-02-10
DE502005010285D1 (de) 2010-11-04
AR051235A1 (es) 2006-12-27
AU2005227411A1 (en) 2006-05-18
EP1653088A3 (fr) 2008-09-03
ES2352842T3 (es) 2011-02-23
BRPI0504681A (pt) 2006-06-27

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