EP0289368B1 - Dispositif de mesure de la position géométrique des bras articulés d'une grue mobile - Google Patents

Dispositif de mesure de la position géométrique des bras articulés d'une grue mobile Download PDF

Info

Publication number
EP0289368B1
EP0289368B1 EP88400407A EP88400407A EP0289368B1 EP 0289368 B1 EP0289368 B1 EP 0289368B1 EP 88400407 A EP88400407 A EP 88400407A EP 88400407 A EP88400407 A EP 88400407A EP 0289368 B1 EP0289368 B1 EP 0289368B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic fluid
crane
flow
rams
measuring
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
EP88400407A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0289368A2 (fr
EP0289368A3 (en
Inventor
Philippe Blanc
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.)
MONTALBANAISE DE CONSTRUCTION MECANIQUE Ste
Original Assignee
MONTALBANAISE DE CONSTRUCTION MECANIQUE Ste
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 MONTALBANAISE DE CONSTRUCTION MECANIQUE Ste filed Critical MONTALBANAISE DE CONSTRUCTION MECANIQUE Ste
Priority to AT88400407T priority Critical patent/ATE82224T1/de
Publication of EP0289368A2 publication Critical patent/EP0289368A2/fr
Publication of EP0289368A3 publication Critical patent/EP0289368A3/fr
Application granted granted Critical
Publication of EP0289368B1 publication Critical patent/EP0289368B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/46—Position indicators for suspended loads or for crane elements

Definitions

  • the present invention relates to a device for determining and measuring the geometric position of the articulated arms of a mobile crane.
  • FR-A-2 497 851 include an electronic central unit which analyzes information from sensors defining the state of the system at all times and actuating valves in the event of incompatibility between the different parameters. block a jack involved in the safety chain concerned and to prevent an operation tending to cause the tilting of the machine thus equipped.
  • the present invention proposes to provide a device making it possible to avoid the installation of sensors on the articulated arms or on any other mobile element of these cranes.
  • this invention relates to a device for measuring the geometric position of the articulated arms of a mobile crane in which the various movements, in particular angular and telescopic, are carried out using thrust jacks, supplied with hydraulic fluids by the intermediary of mechanical or electrically controlled distributors, connected to the cylinders by flexible lines, this device being characterized in that there is provided on each distributor element controlling a movement of the crane, a volumetric flow sensor produced in the form of a turbine, driven in rotation by the circulation of the hydraulic fluid supplying the cylinders and of which the number of revolutions is counted in order to determine the volume of the fluid supplying the corresponding cylinder and, consequently to determine by a trigonometric relation the angular position of the arm articulated with respect to that on which the cylinder is supported, and means to determine the direction of circulation of the hydraulic fluid supplying the cylinders.
  • the device according to the invention implements a method which consists in counting or counting down volume increments, which corresponds to a known displacement of the jack and therefore, by a trigonometric law, to an angular displacement of the articulated arm of the crane. This calculation can be performed using a microprocessor system.
  • the means making it possible to determine the direction of circulation of the hydraulic fluid can consist of a system making it possible to measure the direction of rotation of the turbine or to sense the direction of opening of the distributor valve by simple measurement of the control voltage of the latter when the latter is produced in the form of an electric distributor.
  • the device object of this invention has the advantage that no sensor is mounted on movable elements.
  • the system which is the subject of this invention can be applied to mobile cranes or to any other machine of this type, in particular on mechanical shovels or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)
  • Earth Drilling (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
EP88400407A 1987-04-29 1988-02-23 Dispositif de mesure de la position géométrique des bras articulés d'une grue mobile Expired - Lifetime EP0289368B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400407T ATE82224T1 (de) 1987-04-29 1988-02-23 Messvorrichtung fuer die geometrische lage der scharnierarme eines beweglichen kranes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706121A FR2614611B1 (fr) 1987-04-29 1987-04-29 Dispositif de mesure de la position geometrique des bras articules d'une grue mobile
FR8706121 1987-04-29

Publications (3)

Publication Number Publication Date
EP0289368A2 EP0289368A2 (fr) 1988-11-02
EP0289368A3 EP0289368A3 (en) 1990-02-07
EP0289368B1 true EP0289368B1 (fr) 1992-11-11

Family

ID=9350649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400407A Expired - Lifetime EP0289368B1 (fr) 1987-04-29 1988-02-23 Dispositif de mesure de la position géométrique des bras articulés d'une grue mobile

Country Status (6)

Country Link
EP (1) EP0289368B1 (enExample)
AT (1) ATE82224T1 (enExample)
DE (1) DE3875785T2 (enExample)
ES (1) ES2036693T3 (enExample)
FR (1) FR2614611B1 (enExample)
GR (1) GR3007049T3 (enExample)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174405A (en) * 1962-05-23 1965-03-23 Sinclair Research Inc Positive displacement fluid motor
US4109526A (en) * 1977-08-08 1978-08-29 Combustion Engineering, Inc. Turbine meter for bi-directional measurement of fluid flow
DE2759263C3 (de) * 1977-12-31 1981-02-19 Kracht Pumpen- Und Motorenfabrik Gmbh & Co Kg, 5980 Werdohl Überwachungssystem für hydraulisch betriebene Armaturen
FR2497851A1 (fr) * 1981-01-12 1982-07-16 Mascha Roger Dispositifs de securites pour pelles mecaniques
DE3416646A1 (de) * 1984-05-05 1985-11-07 Krupp Mak Maschinenbau Gmbh, 2300 Kiel Hydraulikanordnung

Also Published As

Publication number Publication date
FR2614611A1 (fr) 1988-11-04
DE3875785T2 (de) 1993-05-27
EP0289368A2 (fr) 1988-11-02
GR3007049T3 (enExample) 1993-07-30
DE3875785D1 (de) 1992-12-17
FR2614611B1 (fr) 1991-02-08
ATE82224T1 (de) 1992-11-15
ES2036693T3 (es) 1993-06-01
EP0289368A3 (en) 1990-02-07

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