DE3873576D1 - HYDRAULIC CONTROL DEVICE FOR CONSUMER GROUPS. - Google Patents

HYDRAULIC CONTROL DEVICE FOR CONSUMER GROUPS.

Info

Publication number
DE3873576D1
DE3873576D1 DE8888103532T DE3873576T DE3873576D1 DE 3873576 D1 DE3873576 D1 DE 3873576D1 DE 8888103532 T DE8888103532 T DE 8888103532T DE 3873576 T DE3873576 T DE 3873576T DE 3873576 D1 DE3873576 D1 DE 3873576D1
Authority
DE
Germany
Prior art keywords
pipe
control
pipes
valve
monitored
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
DE8888103532T
Other languages
German (de)
Inventor
Rudolf Brunner
Harald Dipl Ing Klemens
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.)
Hawe Hydraulik GmbH and Co KG
Original Assignee
Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH 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 Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG filed Critical Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
Priority to DE8888103532T priority Critical patent/DE3873576D1/en
Application granted granted Critical
Publication of DE3873576D1 publication Critical patent/DE3873576D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3127—Floating position connecting the working ports and the return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6052—Load sensing circuits having valve means between output member and the load sensing circuit using check valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6055—Load sensing circuits having valve means between output member and the load sensing circuit using pressure relief valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

Several control valves (S1,S2), supplied from a common pressure source (7), are connected in parallel via pump and tank pipes (9,10) to respective consumer units (V). They are preceded by a flow controller (R), and each has a control branch pipe (34) between tappings (26,27) on the pipes (15,16) to the consumer unit, and a 2/2-way selector valve (Z1,Z2) preceding it, pilot-controlled from the pump pipe. A main control pipe (12) for the flow controller is connected by non-return valves (35) to the control branch pipes. A pressure relief pipe (36,37) connects the selector valves to the tank and is connected to the control branch pipes, containing a monitoring valve (39-41) for excess pressure in the consumer units. If a consumer unit is monitored in only one working direction, the control branch pipe is connected by a presence relief pipe to the control valve. If it is monitored in both directions, the connection uses two such pipes in parallel. The pressure relief pipe(s) leads to the tank from the control circuit of the respective valve, operating its consumer unit in the monitored direction.
DE8888103532T 1987-03-31 1988-03-07 HYDRAULIC CONTROL DEVICE FOR CONSUMER GROUPS. Expired - Lifetime DE3873576D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888103532T DE3873576D1 (en) 1987-03-31 1988-03-07 HYDRAULIC CONTROL DEVICE FOR CONSUMER GROUPS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3710699A DE3710699C1 (en) 1987-03-31 1987-03-31 Hydraulic control device for a consumer group
DE8888103532T DE3873576D1 (en) 1987-03-31 1988-03-07 HYDRAULIC CONTROL DEVICE FOR CONSUMER GROUPS.

Publications (1)

Publication Number Publication Date
DE3873576D1 true DE3873576D1 (en) 1992-09-17

Family

ID=6324472

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3710699A Expired DE3710699C1 (en) 1987-03-31 1987-03-31 Hydraulic control device for a consumer group
DE8888103532T Expired - Lifetime DE3873576D1 (en) 1987-03-31 1988-03-07 HYDRAULIC CONTROL DEVICE FOR CONSUMER GROUPS.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3710699A Expired DE3710699C1 (en) 1987-03-31 1987-03-31 Hydraulic control device for a consumer group

Country Status (4)

Country Link
EP (1) EP0284831B1 (en)
AT (1) ATE79448T1 (en)
DE (2) DE3710699C1 (en)
ES (1) ES2033959T3 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841507C1 (en) * 1988-01-22 1989-06-29 Danfoss A/S, Nordborg, Dk
DE3901207C2 (en) * 1989-01-17 1994-06-23 Rexroth Mannesmann Gmbh Valve arrangement for several hydraulic drives, in particular for the drives of a crane
DE4127327A1 (en) * 1991-02-20 1993-02-25 Teves Gmbh Alfred Vehicle hydraulic system with directly driven pump
DE69229968T2 (en) * 1991-12-25 2000-03-09 Kayaba Industry Co., Ltd. Control device for hydraulic system with multiple consumers
DE9210647U1 (en) * 1992-08-10 1993-12-16 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulic control device
DE4243973C1 (en) * 1992-12-23 1994-07-07 Heilmeier & Weinlein Hydraulic control device
DE9310857U1 (en) * 1993-07-20 1993-09-30 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulic control valve
DE19714141A1 (en) * 1997-04-05 1998-10-08 Mannesmann Rexroth Ag Hydraulic control arrangement
US5813226A (en) * 1997-09-15 1998-09-29 Caterpillar Inc. Control scheme for pressure relief
DE19828963A1 (en) 1998-06-29 1999-12-30 Mannesmann Rexroth Ag Hydraulic switch system for the operation of low- and high-load units
DE102004014113A1 (en) * 2004-03-23 2005-10-20 Sauer Danfoss Aps Nordborg Hydraulic valve assembly has pressure diversion valve between HP and LP connections and constructed as hydraulically piloted valve with control inlet connected to pilot valve controlled by pressure at load sensing connection
DE102004028437B3 (en) * 2004-06-14 2006-03-02 Sauer-Danfoss Aps valve assembly
CN105840574B (en) 2015-01-16 2018-04-06 徐工集团工程机械股份有限公司 Load sensing multi-way valve and construction machinery hydraulic system
EP3093505B1 (en) * 2015-05-11 2017-08-23 HAWE Hydraulik SE Hydraulic control device and selector valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911942A (en) * 1974-03-28 1975-10-14 Gen Signal Corp Compensated multifunction hydraulic system
DE2601999C3 (en) * 1976-01-21 1980-02-21 Danfoss A/S, Nordborg (Daenemark) Arrangement for influencing the amount of work of a servo motor
US3987623A (en) * 1976-01-23 1976-10-26 Caterpillar Tractor Co. Controlled priority fluid system of a crawler type vehicle
DE3022592C2 (en) * 1980-06-16 1986-11-27 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 8000 München Spool control valve

Also Published As

Publication number Publication date
EP0284831B1 (en) 1992-08-12
ES2033959T3 (en) 1993-04-01
EP0284831A2 (en) 1988-10-05
EP0284831A3 (en) 1990-08-16
DE3710699C1 (en) 1988-08-18
ATE79448T1 (en) 1992-08-15

Similar Documents

Publication Publication Date Title
DE3873576D1 (en) HYDRAULIC CONTROL DEVICE FOR CONSUMER GROUPS.
ES446653A1 (en) Control device for a hydraulically operated consumer
GB2314057A (en) Hydraulic control arrangement
KR890014373A (en) Control device of double acting hydraulic jack
ES8601411A1 (en) Hydraulic circuit for a load-driving motor.
ATE52560T1 (en) FLOW RECOVERY SYSTEM FOR HYDRAULIC CIRCUITS WITH PUMPS AND PRESSURE-COMPENSATED DISTRIBUTION VALVES FOR WORKING LINKS OF EARTH-MOVING EQUIPMENT.
EP0404946A4 (en) Hydraulic circuit device of construction vehicle
SE7700317L (en) CONTROL DEVICE FOR ATMINSTONE TVA FROM A PRINTING MEDICAL CELL FEED HYDRAULIC CONSUMERS
CA1098418A (en) Circulating flow hydraulic pilot system
US3955474A (en) Fluid pressure system having pumps and valves
EP0438604A4 (en) Hydraulic circuit device
DE59609666D1 (en) Rest switching device
US3178886A (en) Method and apparatus for control of fluid systems
SE8701357D0 (en) HYDRAULIC DRIVE SYSTEM
GB1500215A (en) Hydraulic steering arrangement
SU1375894A1 (en) Hydraulic system
ATE313015T1 (en) MODULAR SYSTEM FOR HYDRAULIC ELEMENTS
FR2389021A1 (en) Load handling equipment hydraulic control circuit - has safety valve with closing piston operated by two sensors in series
SU1204826A1 (en) Flow regulator
FR2283342A1 (en) Hydraulic control valve arrangement - contains direction valves, pressure compensation valves, pre-control pressure monitors, back pressure valves
JPS55135205A (en) Driving device for hydraulic actuator
EP0092315A3 (en) Hydraulic pump control
JPS56164205A (en) Hydraulic pressure circuit for hydraulic-pressure-operated apparatus
ES8302222A1 (en) Hydraulic circuit selector with flow control.
SU724768A1 (en) Powered roof support control apparatus

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HAWE HYDRAULIK GMBH & CO. KG, 81673 MUENCHEN, DE

8339 Ceased/non-payment of the annual fee