EP0211137A2 - Dispositif d'entraînement - Google Patents

Dispositif d'entraînement Download PDF

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Publication number
EP0211137A2
EP0211137A2 EP86103294A EP86103294A EP0211137A2 EP 0211137 A2 EP0211137 A2 EP 0211137A2 EP 86103294 A EP86103294 A EP 86103294A EP 86103294 A EP86103294 A EP 86103294A EP 0211137 A2 EP0211137 A2 EP 0211137A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
plunger
connection
pressure medium
flushing
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Withdrawn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
EP86103294A
Other languages
German (de)
English (en)
Other versions
EP0211137A3 (fr
Inventor
Otto Dipl.-Ing. Heinemann
Heinz-Herbert Dipl.-Ing. Schmits
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0211137A2 publication Critical patent/EP0211137A2/fr
Publication of EP0211137A3 publication Critical patent/EP0211137A3/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Withdrawn legal-status Critical Current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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors

Definitions

  • the invention relates to a drive device according to the preamble of claim 1.
  • drive devices For generating a reciprocating movement of a driven machine part, for example the drive axis of a moving grate cooler, drive devices are known which contain synchronous cylinders, in which a piston rod is present in the cylinder on both sides of the piston in order to have equally large displacements and thus exactly the same conditions for to create both lifting movements.
  • the subject of DE-A-33 37 143.1 is also a drive device which contains four differential cylinder-piston arrangements and already represents a significant simplification compared to the drive devices with synchronous cylinders.
  • the invention is based on the object of designing a drive device of the type mentioned in the preamble of claim 1 in such a way that there is a further simplification in comparison with the prior art.
  • only structurally simple cylinders without internal valves are to be used, only a small number of easily replaceable seals being required.
  • the drive device according to the invention has the advantage that no internal valves are required. It is also advantageous that, if necessary, a position measuring system can be installed in the cylinders.
  • the drive device according to the invention is further characterized by an improved introduction of force into the driven machine part, for example a moving grate cooler, and by an overall construction which is simplified overall.
  • the drive device shown is used to generate a reciprocating movement of a driven machine part, in the example shown the drive axis 1 of a moving grate cooler.
  • the movement of this drive axis 1 is represented by the double arrow 2.
  • the drive device contains a first plunger cylinder A, a second plunger cylinder B, a third plunger cylinder C and a fourth plunger cylinder D.
  • the plunger cylinders A to D each contain a cylinder 3a to 3d, a piston 4a to 4d with a flushing bore 5a to 5d, furthermore a cylinder space connection 6a to 6d for the cylinder space 7a to 7d and a flushing line connection 8a to 8d.
  • the flush line connection 8a to 8d is located in the wall of the cylinder 3a to 3d at a point which is reached by the transverse part of the flushing bore 5a to 5d when the relevant piston 4a to 4d reaches its end position reached (see Fig. 2).
  • the pressure medium is supplied to the drive device by a pump 10 driven by a motor 9 via a 4/3-way valve 11 via two pressure medium connections 12 and 13.
  • the pressure medium flows back into a storage container 14.
  • the first pressure medium connection 12 is connected via a line 15 directly to the cylinder space connection 6a of the plunger cylinder A. It is also connected to the flushing line connection 8b of the plunger cylinder B via a line 16 and a first check valve 17 arranged therein.
  • the second pressure medium connection 13 is connected via a line 18 directly to the cylinder chamber connection 6d of the plunger cylinder D, further via a line 19 and a second check valve 20 arranged therein to the flushing line connection 8c of the plunger cylinder C.
  • the cylinder chamber connections 6b and 6c of the plunger cylinders B and C are connected to one another via a connecting line 21 to which the flushing line connection 8a of the plunger cylinder A via a line 22 with a third check valve 23 and the flushing line connection 8d of the plunger cylinder D via a line 24 with a fourth check valve 25 is connected.
  • the four check valves 17, 20, 23 and 25 are arranged so that the check valves 20 and 23 are permeable when the first pressure medium connection 12 is under pressure and the flushing bore 5a, 5c in the piston of the plunger cylinders A and C the associated flushing line connection 8a or 8c has reached (see FIG. 2), while the check valves 17 and 25 are permeable when the second pressure medium connection 13 is under pressure and the flushing holes 5b, 5d in the piston 4b, 4d of the plunger cylinders B and D the associated flushing line connection 8b, 8d has reached.
  • limit switches 26, 27 and 28, 29 are provided, which are actuated in a contactless manner via switch lugs 30, 31 fastened to the drive axle 1.
  • the control valve 11 is a 4/3-way valve with four connections (12, 13 and 32, 33) and three switching positions. In the left switching position, the pressure medium connection 12 is under pressure, in the right switching position the pressure medium connection 13; in the middle switching position, the pressure medium supply to the drive device is interrupted.
  • Fig.1 illustrates the pressure medium flow during the working stroke, in which the drive axis 1 through the plunger cylinders A and C in the drawing is moved upwards. If the piston 4a of the cylinder A moves upwards due to the supply of a certain amount of pressure medium into the cylinder space 7a, the piston 4b of the cylinder B displaces the same amount of pressure medium into the cylinder C. The same amount is transferred from the cylinder D into the reservoir 14 pushed back. All four pistons travel the same way, so that the drive axle 1 always experiences a parallel displacement regardless of the size and distribution of the forces acting on it.
  • the return stroke takes place according to the same principle, in that the plunger cylinder D is supplied with pressure medium and the plunger cylinder B is subjected to a corresponding action by the Plunger cylinder C experiences displaced pressure medium.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Fluid-Driven Valves (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Servomotors (AREA)
EP86103294A 1985-05-31 1986-03-12 Dispositif d'entraínement Withdrawn EP0211137A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853519565 DE3519565A1 (de) 1985-05-31 1985-05-31 Antriebsvorrichtung
DE3519565 1985-05-31

Publications (2)

Publication Number Publication Date
EP0211137A2 true EP0211137A2 (fr) 1987-02-25
EP0211137A3 EP0211137A3 (fr) 1987-06-03

Family

ID=6272119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103294A Withdrawn EP0211137A3 (fr) 1985-05-31 1986-03-12 Dispositif d'entraínement

Country Status (6)

Country Link
US (1) US4681021A (fr)
EP (1) EP0211137A3 (fr)
BR (1) BR8601711A (fr)
DE (1) DE3519565A1 (fr)
ES (1) ES8705582A1 (fr)
ZA (1) ZA862111B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322025A (en) * 1992-05-29 1994-06-21 Steelcase Inc. Adjustable dual worksurface support
US6647953B1 (en) 2001-08-30 2003-11-18 Caterpillar Inc Hydraulic system volume reducer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213248B (de) * 1959-01-20 1966-03-24 Froriep Gmbh Maschf Vorrichtung zur starren und zwanglaeufigen hydraulischen Parallelfuehrung von beweglichen Maschinenteilen od. dgl.
DE1812208A1 (de) * 1968-04-02 1969-12-18 Whiteman Mfg Company Vorrichtung zur Synchronisierung von Hydraulikzylinderantrieben
FR2380218A1 (fr) * 1977-02-10 1978-09-08 Kempf & Co Ag Dispositif hydraulique de levage
DE2936264A1 (de) * 1979-09-07 1981-03-19 Emil Dautel GmbH u. Co KG, 7105 Leingarten Gleichlaufschaltung fuer hydraulische kolben-zylinder-aggregate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE641957C (de) * 1933-09-05 1937-02-18 Lange & Geilen Maschinenfabrik Hydraulische Antriebsvorrichtung fuer hin und her bewegte Teile von Werkzeugmaschinen, insbesondere Kurzhobelmaschinen
US2197428A (en) * 1937-06-11 1940-04-16 Clarence F Erb Automatic stoker
FR1018161A (fr) * 1950-05-17 1952-12-29 Dispositif hydraulique d'équilibrage
FR1289212A (fr) * 1961-05-15 1962-03-30 Belva S A R L Ets Perfectionnement aux vérins comportant un arrêt en fin de course par retour d'huile au réservoir
DE2213771A1 (de) * 1972-03-22 1973-09-27 Festo Maschf Stoll G Arbeitszylinder fuer pneumatische oder hydraulische druckmedien
DE3205666A1 (de) * 1982-02-17 1983-08-25 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vorrichtung zur steuerung hydraulischer schubkolbengetriebe
US4567727A (en) * 1982-12-06 1986-02-04 Ingersoll-Rand Company Proportioned hydraulic system
DE3337143A1 (de) * 1983-10-12 1985-04-25 Krupp Polysius Ag, 4720 Beckum Antriebsvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213248B (de) * 1959-01-20 1966-03-24 Froriep Gmbh Maschf Vorrichtung zur starren und zwanglaeufigen hydraulischen Parallelfuehrung von beweglichen Maschinenteilen od. dgl.
DE1812208A1 (de) * 1968-04-02 1969-12-18 Whiteman Mfg Company Vorrichtung zur Synchronisierung von Hydraulikzylinderantrieben
FR2380218A1 (fr) * 1977-02-10 1978-09-08 Kempf & Co Ag Dispositif hydraulique de levage
DE2936264A1 (de) * 1979-09-07 1981-03-19 Emil Dautel GmbH u. Co KG, 7105 Leingarten Gleichlaufschaltung fuer hydraulische kolben-zylinder-aggregate

Also Published As

Publication number Publication date
DE3519565A1 (de) 1986-12-04
US4681021A (en) 1987-07-21
BR8601711A (pt) 1986-12-16
EP0211137A3 (fr) 1987-06-03
ZA862111B (en) 1986-11-26
ES555481A0 (es) 1987-05-01
ES8705582A1 (es) 1987-05-01

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Inventor name: HEINEMANN, OTTO, DIPL.-ING.

Inventor name: SCHMITS, HEINZ-HERBERT, DIPL.-ING.