EP3128185A1 - Cylindre à course ajustable - Google Patents

Cylindre à course ajustable Download PDF

Info

Publication number
EP3128185A1
EP3128185A1 EP16401044.9A EP16401044A EP3128185A1 EP 3128185 A1 EP3128185 A1 EP 3128185A1 EP 16401044 A EP16401044 A EP 16401044A EP 3128185 A1 EP3128185 A1 EP 3128185A1
Authority
EP
European Patent Office
Prior art keywords
piston rod
stop
cylinder
stop ring
cylinder housing
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.)
Withdrawn
Application number
EP16401044.9A
Other languages
German (de)
English (en)
Inventor
Wilfried Ammermann
Karl-Peter Hoffmann
Florian Lücking
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.)
Amazonen Werke H Dreyer SE and Co KG
Original Assignee
Amazonen Werke H Dreyer SE and Co KG
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 Amazonen Werke H Dreyer SE and Co KG filed Critical Amazonen Werke H Dreyer SE and Co KG
Publication of EP3128185A1 publication Critical patent/EP3128185A1/fr
Withdrawn legal-status Critical Current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 arrangement according to the preamble of claim 1.
  • This cylinder assembly has a cylinder.
  • the cylinder has a cylinder housing and a retractable and extendable, protruding from the cylinder housing piston rod.
  • the piston rod is associated with a cooperating with the cylinder housing and engageable in various stop positions stop assembly.
  • This stop assembly is designed as spacers having spacer assembly. The spacers limit the retraction of the piston rod relative to the cylinder housing and thus form a mechanical stop.
  • the spacers are brought into a storage position and in a stop position. In the stop position, the spacers comprise the piston rod at least partially and are at least partially against the piston rod. This can lead to damage, scratching and wear of the piston rod by the located in the stop position spacers disadvantageously.
  • the number of pivoted in stop position spacers determines the retraction and stop position of the piston rod.
  • the invention is based on the object to ensure in a simple manner that the stopper located in stop position do not damage the piston rod.
  • stop assembly has at least one displaceable in the axial direction of the piston rod and positionable on the piston rod in different positions stop ring.
  • a stop ring stop assembly fully surrounds the piston rod.
  • This is a fixed Positioning of the stop ring on the piston rod possible, so that no damage to the piston rod caused by the stop ring in a disadvantageous manner.
  • the stop ring can be arranged in a simple manner on the piston rod, that no damage to the piston rod arise.
  • the stop ring can be easily move in relation to the piston rod in the axial direction and set in different positions relative to the piston rod.
  • the stop ring can be easily positioned in different positions on the piston rod and fixed in a simple manner in the various positions, by providing that between the piston rod and the stop ring at least one positive connection is arranged.
  • the displacement of the stop ring relative to the piston rod in the axial direction and the setting in the respective intended position can be achieved in that at least one helical connection is arranged between the piston rod and the stop ring.
  • the displacement of the stop ring in the axial direction relative to the piston rod in the axial direction and the setting in the respective intended position can be achieved in that the positive connection between the piston rod and the stop ring is formed as a screw thread.
  • the cylinder is designed as a hydraulic synchronizing cylinder that is arranged at least on one end of the protruding from both sides of the cylinder housing end portion of the piston rod of the stop ring. This results in an advantageous arrangement of the respective stop ring on the piston rod of a synchronizing cylinder.
  • the stop ring is arranged only on the free end of the piston rod.
  • a combination machine with a frame 1 and a chassis 2 is shown.
  • the chassis 2 is attached via a rocker 3, which is arranged schreibnverschwenkbar about a hinge assembly 4 on the frame 1, by means of this hinge assembly 4 to the frame 1.
  • a harrow 5 with tillage tools 6 is arranged on the frame 1, while behind the landing gear 2 a coulter arrangement 7 is arranged.
  • These tillage tools 6 and coulters 7 are part of a combination sowing machine, not shown.
  • a cylinder arrangement 9 which consists of two hydraulic cylinders 10 acting on the rockers 3 of the chassis 2, is arranged.
  • the hydraulic cylinder 10 is part of the cylinder assembly 9.
  • This cylinder assembly 9 has the cylinder 10 with the cylinder housing 11 and a retractable and extendable, protruding from the cylinder housing 11 piston rod 12.
  • the piston rod 12 is connected in the cylinder housing 11 with a piston 13.
  • the hydraulic cylinder 10 is designed as a synchronizing cylinder, so that the piston rod 12 protrudes from both sides of the cylinder housing 11.
  • the cylinder housing 11 is connected via articulation bolts 14 to the upper end 8 of the rocker 3, while the one end 15 of the piston rod 12 is connected to the frame 1.
  • the two hydraulic connections 16 and 17 are arranged way to the piston rod 12 relative to the cylinder housing 11 to extend and retract.
  • the hydraulic connections 11 and 12 are connected via hydraulic lines, not shown, with a hydraulic system, also not shown in a known manner.
  • the piston rod of each hydraulic cylinder 10 is associated with a stop assembly 18.
  • This stop assembly 18 has the displaceable in the axial direction of the piston rod 12 and positionable on the piston rod 12 in different positions stop ring 19.
  • This positive connection 20 between the piston rod 12 and the stop ring 19 is designed as a helical connection.
  • a facedschraubgewinde and on the inside of the stop ring 19 a mecanicschraubgewinde arranged on the piston rod 12.
  • the stop ring 19 is arranged in the exemplary embodiment on the protruding end portion 12 'of the piston rod 12, to which not the frame 1 engages. Thus, the stop ring 19 is only on the free end 12 'of the piston rod 12.
  • the stop ring 19 is to spend by simple rotation about its own axis through the screw thread in different stop positions.
  • the stop ring 19 forms in the stop position a mechanical stop and limits the retraction and / or extension of the piston rod 12, 12 'relative to the cylinder housing 11 to define a stop position for the piston rod 12, wherein the stop position of the stop position of the stop ring 12 on the Piston rod 12 depends, as will be explained below with reference to the drawings.
  • the respective stop ring 19 in the region of the piston rod 12 and 12 ' is placed.
  • the piston rod 12 is moved out of the cylinder housing 11, as the Fig.6 and 7 in conjunction with the Fig.1 and 2 demonstrate.
  • a pot-like closure lid 21 is mounted rotatably. At this closure lid 21, a handle for rotating the stop ring 19 can be recognized.
  • a toothing 22 is mounted on the outside thereof. If a plurality of stop assemblies with stop ring 19 are present, a toothed belt, not shown, can be wound around the toothing 22 of the stop rings 19, so that during the rotation of a stop ring 19 all stop rings 19 are rotated and thus the stop assemblies 18 can be adjusted accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP16401044.9A 2015-07-29 2016-07-15 Cylindre à course ajustable Withdrawn EP3128185A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015112351.7A DE102015112351A1 (de) 2015-07-29 2015-07-29 Zylinderanordnung

Publications (1)

Publication Number Publication Date
EP3128185A1 true EP3128185A1 (fr) 2017-02-08

Family

ID=56550158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16401044.9A Withdrawn EP3128185A1 (fr) 2015-07-29 2016-07-15 Cylindre à course ajustable

Country Status (2)

Country Link
EP (1) EP3128185A1 (fr)
DE (1) DE102015112351A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110645227A (zh) * 2019-10-08 2020-01-03 达英科(南京)设备有限公司 一种有效行程可调气缸及行程调节方法
CN110645226A (zh) * 2019-10-08 2020-01-03 达英科(南京)设备有限公司 有效行程可调气缸组
DE102020121486B3 (de) 2020-08-15 2021-12-30 Aventics Gmbh Druckmittelzylinder mit statischer Endlagendichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736294A (en) * 1951-08-09 1956-02-28 Smith Corp A O Adjustable stroke ram and piston assembly
JPS4938888U (fr) * 1972-07-17 1974-04-05
DE2651398A1 (de) * 1976-11-11 1978-05-18 Willi Horcher Stell- oder betaetigungsorgan fuer ein hin und her zu bewegendes funktionselement
JP2001141056A (ja) * 1999-11-08 2001-05-25 Samsung Electro Mech Co Ltd 駆動シリンダ
DE202004015412U1 (de) * 2004-10-01 2005-05-04 Weiner, Uwe Zur Hubbegrenzung dienende, verstellbare Anschlaganordnung für eine Kolben-Zylinder-Einheit
EP1653088B1 (fr) 2004-10-29 2010-09-22 Deere & Company Vérin avec butée réglable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736294A (en) * 1951-08-09 1956-02-28 Smith Corp A O Adjustable stroke ram and piston assembly
JPS4938888U (fr) * 1972-07-17 1974-04-05
DE2651398A1 (de) * 1976-11-11 1978-05-18 Willi Horcher Stell- oder betaetigungsorgan fuer ein hin und her zu bewegendes funktionselement
JP2001141056A (ja) * 1999-11-08 2001-05-25 Samsung Electro Mech Co Ltd 駆動シリンダ
DE202004015412U1 (de) * 2004-10-01 2005-05-04 Weiner, Uwe Zur Hubbegrenzung dienende, verstellbare Anschlaganordnung für eine Kolben-Zylinder-Einheit
EP1653088B1 (fr) 2004-10-29 2010-09-22 Deere & Company Vérin avec butée réglable

Also Published As

Publication number Publication date
DE102015112351A1 (de) 2017-02-02

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