ES2068612T3 - METHOD AND DEVICE TO AVOID THE PUNCTURE OF A CONTROL SYSTEM, LOAD DETECTOR AND PRESSURE COMPENSATOR FOR A HYDRAULIC CRANE. - Google Patents

METHOD AND DEVICE TO AVOID THE PUNCTURE OF A CONTROL SYSTEM, LOAD DETECTOR AND PRESSURE COMPENSATOR FOR A HYDRAULIC CRANE.

Info

Publication number
ES2068612T3
ES2068612T3 ES91920481T ES91920481T ES2068612T3 ES 2068612 T3 ES2068612 T3 ES 2068612T3 ES 91920481 T ES91920481 T ES 91920481T ES 91920481 T ES91920481 T ES 91920481T ES 2068612 T3 ES2068612 T3 ES 2068612T3
Authority
ES
Spain
Prior art keywords
hydraulic flow
crane
control system
available
puncture
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
ES91920481T
Other languages
Spanish (es)
Inventor
Lars Andersson
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.)
Hiab AB
Original Assignee
Hiab AB
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=20380929&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2068612(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hiab AB filed Critical Hiab AB
Application granted granted Critical
Publication of ES2068612T3 publication Critical patent/ES2068612T3/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Jib Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

In a method for preventing the puncture of a load-sensing and pressure-compensating control system for a hydraulic crane when the hydraulic flow requested to the different functions of the crane exceeds the maximum hydraulic flow available, the values of control signals Q1-QN from a means for controlling the different crane functions are added up, and the resulting sum QP is compared with the maximum hydraulic flow Qmax available from a pump. Should the hydraulic flow requested by the control signals exceed the maximum hydraulic flow available, the control signals are scaled down so as to define a flow which falls below the maximum flow available, thus ensuring that a hydraulic flow is at all times supplied to all the crane functions. A device for implementing the method can take the shape of a program in a computer which receives the control signals from the control means and transmits output signals to a directional-control-valve block in the control system.
ES91920481T 1990-11-16 1991-11-14 METHOD AND DEVICE TO AVOID THE PUNCTURE OF A CONTROL SYSTEM, LOAD DETECTOR AND PRESSURE COMPENSATOR FOR A HYDRAULIC CRANE. Expired - Lifetime ES2068612T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9003656A SE467408B (en) 1990-11-16 1990-11-16 SETTING AND DEVICE FOR THE PREVENTION OF PUNCTIONING OF A LOADING AND PRESSURE COMPENSATING CONTROL SYSTEM FOR A HYDRAULIC CRANE

Publications (1)

Publication Number Publication Date
ES2068612T3 true ES2068612T3 (en) 1995-04-16

Family

ID=20380929

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91920481T Expired - Lifetime ES2068612T3 (en) 1990-11-16 1991-11-14 METHOD AND DEVICE TO AVOID THE PUNCTURE OF A CONTROL SYSTEM, LOAD DETECTOR AND PRESSURE COMPENSATOR FOR A HYDRAULIC CRANE.

Country Status (7)

Country Link
EP (1) EP0557390B1 (en)
JP (1) JPH06504512A (en)
AT (1) ATE118459T1 (en)
DE (1) DE69107472T2 (en)
ES (1) ES2068612T3 (en)
SE (1) SE467408B (en)
WO (1) WO1992008666A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779239B2 (en) * 1995-12-13 2006-09-13 Liebherr-Werk Ehingen GmbH Crane hoist control
DK1490288T3 (en) * 2001-11-28 2015-05-11 Hojbjerg Maskinfabrik As Load control system, preferably for boom cranes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638211A (en) * 1969-10-08 1972-01-25 Litton Systems Inc Crane safety system
US4222491A (en) * 1978-08-02 1980-09-16 Eaton Corporation Crane operating aid and sensor arrangement therefor
FR2504701A1 (en) * 1981-04-22 1982-10-29 Camiva DEVICE FOR CONTROLLING AUTOMATIC CORRECTION OF DEVERS FOR DEPLOYABLE ORIENTABLE SCALE OR ARM-LIKE ARMOR ON VEHICLE
DE3605462A1 (en) * 1986-02-24 1987-08-27 Mo N Proizv Ob Str Dorozh Mash METHOD FOR SECURING SAFE OPERATION OF SELF-DRIVING Jib Cranes, AND SYSTEM FOR CARRYING OUT THE SAME

Also Published As

Publication number Publication date
EP0557390A1 (en) 1993-09-01
SE467408B (en) 1992-07-13
ATE118459T1 (en) 1995-03-15
SE9003656L (en) 1992-05-17
DE69107472D1 (en) 1995-03-23
WO1992008666A1 (en) 1992-05-29
SE9003656D0 (en) 1990-11-16
JPH06504512A (en) 1994-05-26
EP0557390B1 (en) 1995-02-15
DE69107472T2 (en) 1995-06-14

Similar Documents

Publication Publication Date Title
GB1006965A (en) Hydraulically actuated crutch
NZ502685A (en) Aerial work platform boom having ground and platform controls linked by a controller area network
US3654833A (en) Hydraulic control circuit
JPH109212A (en) Hydraulic cylinder device
ES2068612T3 (en) METHOD AND DEVICE TO AVOID THE PUNCTURE OF A CONTROL SYSTEM, LOAD DETECTOR AND PRESSURE COMPENSATOR FOR A HYDRAULIC CRANE.
DE60328683D1 (en) CONTROL SYSTEM AND THE CONTROL SYSTEM CONTAINING THE CONTROL SYSTEM
US3303753A (en) Pressure liquid control system
US3035710A (en) Hydraulic whip drive for the overhang beam of a crane
GB1514891A (en) Hydraulic cab tilting systems
GB1057752A (en) Control system for hydraulically operated equipment such as excavators
FR2389021A1 (en) Load handling equipment hydraulic control circuit - has safety valve with closing piston operated by two sensors in series
ATE101899T1 (en) HYDRAULIC CONTROL DEVICE.
US3292500A (en) Hydraulic elevator
CN210660790U (en) One-way speed regulation unloading loop
SU1062171A2 (en) Hydraulic grapple
SE9101544D0 (en) KRANDAEMPARE
SU688616A1 (en) Mining cutter-loader set control apparatus
CN207470507U (en) A kind of bracing members prestressing force classification application system being uniformly controlled
SU872436A1 (en) Device for regulating and controlling the load winch of self-propelled boom crane
ES8308004A1 (en) Device for controlling a hydrostatic drive
JPS5632088A (en) Input torque controlling system for variable displacement pump
US3395616A (en) Self-advancing mine roof supports
SU423682A1 (en) REGULATOR OF THE PRESSURE ENERGY IN THE WORKING CYLINDER OF THE HYDRAULIC PRESS
GB935843A (en) A travelling support frame for the support of galleries in mines
JPS602522B2 (en) Fluid pressure differential circuit

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 557390

Country of ref document: ES