FR2400630A1 - Dispositif de poussage au moyen de verins hydrauliques - Google Patents

Dispositif de poussage au moyen de verins hydrauliques

Info

Publication number
FR2400630A1
FR2400630A1 FR7725269A FR7725269A FR2400630A1 FR 2400630 A1 FR2400630 A1 FR 2400630A1 FR 7725269 A FR7725269 A FR 7725269A FR 7725269 A FR7725269 A FR 7725269A FR 2400630 A1 FR2400630 A1 FR 2400630A1
Authority
FR
France
Prior art keywords
push
hydraulic cylinders
button
working
limit switch
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.)
Granted
Application number
FR7725269A
Other languages
English (en)
Other versions
FR2400630B1 (fr
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR7725269A priority Critical patent/FR2400630A1/fr
Priority to DE19782833725 priority patent/DE2833725A1/de
Priority to GB7831932A priority patent/GB2002063B/en
Priority to AT560178A priority patent/AT359953B/de
Priority to ZA00784426A priority patent/ZA784426B/xx
Priority to CA308,664A priority patent/CA1093938A/fr
Priority to US05/931,729 priority patent/US4248136A/en
Priority to AU38736/78A priority patent/AU522531B2/en
Priority to BE7846571A priority patent/BE869724A/fr
Priority to ES472521A priority patent/ES472521A1/es
Priority to YU01948/78A priority patent/YU194878A/xx
Priority to PL1978209081A priority patent/PL113648B1/pl
Priority to JP9959378A priority patent/JPS5445466A/ja
Publication of FR2400630A1 publication Critical patent/FR2400630A1/fr
Application granted granted Critical
Publication of FR2400630B1 publication Critical patent/FR2400630B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors shifting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/08—Guiding the machine
    • E21C35/12—Guiding the machine along a conveyor for the cut material
    • E21C35/14—Equipment for pressing the conveyor towards the working face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
    • E21D23/20—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms for sequential movement, e.g. one behind the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)
  • Actuator (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

L'invention concerne un dispositif de poussage par une pluralité de vérins hydrauliques. Deux vérins différentiels 10, 20, poussent de la droite vers la gauche selon la figure. Les chambres de réarmement 15 sont en permanence sous pression hydraulique. A chaque vérin est associé un clapet piloté autoverrouillé 23 mis en position active par un poussoir 24 de fin de course de travail du piston 11 et ramené en position inactive par un clapet piloté 34 actionné par un poussoir 39 de fin de course de retour du piston 11 au départ En position active le clapet 23 commande l'isolement par rapport à l'alimentation 1 ou 2 de toutes les chambres de travail 14 et la mise à la bâche 9 de la chambre de travail 14 associée. L'invention s'applique au pilotage automatique d'une pluralité de vérins de poussée
FR7725269A 1977-08-18 1977-08-18 Dispositif de poussage au moyen de verins hydrauliques Granted FR2400630A1 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
FR7725269A FR2400630A1 (fr) 1977-08-18 1977-08-18 Dispositif de poussage au moyen de verins hydrauliques
DE19782833725 DE2833725A1 (de) 1977-08-18 1978-08-01 Vorrichtung zur quasi-kontinuierlichen druckbeaufschlagung mittels mehrerer hydraulischer arbeitskolben
GB7831932A GB2002063B (en) 1977-08-18 1978-08-02 Thrust device using hydraulic jacks
AT560178A AT359953B (de) 1977-08-18 1978-08-02 Vorrichtung zur nahezu kontinuierlichen druck- beaufschlagung einer stempelrueckvorrichtung, eines ausbaurahmens od. dgl.
CA308,664A CA1093938A (fr) 1977-08-18 1978-08-03 Dispositif de poussage au moyen de verins hydrauliques
ZA00784426A ZA784426B (en) 1977-08-18 1978-08-03 A thrust device using hydraulic jacks
US05/931,729 US4248136A (en) 1977-08-18 1978-08-07 Thrust device using hydraulic jacks
AU38736/78A AU522531B2 (en) 1977-08-18 1978-08-08 A quasi-continuous thrust device
BE7846571A BE869724A (fr) 1977-08-18 1978-08-11 Dispositif de poussage au moyen de verins hydrauliques
ES472521A ES472521A1 (es) 1977-08-18 1978-08-11 Dispositivo de empuje casi continuo por medio de una plura- lidad de gatos hidraulicos
YU01948/78A YU194878A (en) 1977-08-18 1978-08-15 Pushing device using hydraulic presses
PL1978209081A PL113648B1 (en) 1977-08-18 1978-08-16 Arrangement for controlling several hydraulic jacks
JP9959378A JPS5445466A (en) 1977-08-18 1978-08-17 Thruster employing fluid pressure jack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7725269A FR2400630A1 (fr) 1977-08-18 1977-08-18 Dispositif de poussage au moyen de verins hydrauliques

Publications (2)

Publication Number Publication Date
FR2400630A1 true FR2400630A1 (fr) 1979-03-16
FR2400630B1 FR2400630B1 (fr) 1980-09-12

Family

ID=9194601

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725269A Granted FR2400630A1 (fr) 1977-08-18 1977-08-18 Dispositif de poussage au moyen de verins hydrauliques

Country Status (13)

Country Link
US (1) US4248136A (fr)
JP (1) JPS5445466A (fr)
AT (1) AT359953B (fr)
AU (1) AU522531B2 (fr)
BE (1) BE869724A (fr)
CA (1) CA1093938A (fr)
DE (1) DE2833725A1 (fr)
ES (1) ES472521A1 (fr)
FR (1) FR2400630A1 (fr)
GB (1) GB2002063B (fr)
PL (1) PL113648B1 (fr)
YU (1) YU194878A (fr)
ZA (1) ZA784426B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826928A (zh) * 2019-02-01 2019-05-31 浙江工业大学 一种直线运动变速变行程合成系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7306108B2 (en) 2004-04-13 2007-12-11 Berry Plastics Corporation Closure with vents for venting during molding of a liner, method of forming a liner in a closure, and device for forming a liner in a closure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987003A (en) * 1934-07-13 1935-01-08 Myron W Dole Duplex steam engine
US2890658A (en) * 1956-07-10 1959-06-16 Skf Svenska Kullagerfab Ab Pneumatic liquid pressure pump
FR1361466A (fr) * 1963-04-09 1964-05-22 Hispano Suiza Sa Perfectionnements apportés aux installations de commande hydraulique à appareils récepteurs à double effet
DE1963353A1 (de) * 1969-12-18 1971-06-24 Gewerk Eisenhuette Westfalia Hubsteuerung eines Rueckzylinders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826928A (zh) * 2019-02-01 2019-05-31 浙江工业大学 一种直线运动变速变行程合成系统
CN109826928B (zh) * 2019-02-01 2023-11-17 浙江工业大学 一种直线运动变速变行程合成系统

Also Published As

Publication number Publication date
PL209081A1 (pl) 1979-05-21
AT359953B (de) 1980-12-10
PL113648B1 (en) 1980-12-31
GB2002063B (en) 1982-01-27
ZA784426B (en) 1979-07-25
DE2833725A1 (de) 1979-03-01
AU522531B2 (en) 1982-06-10
JPS5445466A (en) 1979-04-10
AU3873678A (en) 1980-02-14
FR2400630B1 (fr) 1980-09-12
YU194878A (en) 1982-08-31
US4248136A (en) 1981-02-03
BE869724A (fr) 1979-02-12
CA1093938A (fr) 1981-01-20
ATA560178A (de) 1980-05-15
GB2002063A (en) 1979-02-14
ES472521A1 (es) 1979-04-01

Similar Documents

Publication Publication Date Title
DE3781244D1 (de) Zieheinrichtung fuer eine presse.
DE3261319D1 (en) Piston-driven diaphragm pump
FI844848A0 (fi) Hydrauliskt driven slaganordning.
FR2377915A1 (fr) Amplificateur de freinage pour une installation de frein de vehicule avec controle antiblocage
FR2400630A1 (fr) Dispositif de poussage au moyen de verins hydrauliques
ES8406327A1 (es) Perfeccionamientos en un conjunto de accionamiento de frenos
JPS641652A (en) Liquid pressure booster
DE3781099D1 (de) Zieheinrichtung fuer eine presse.
JPS5447022A (en) Valve lifter for internal combustion engine
FR2363693A1 (fr) Appareil a commande multiple pour soutenement marchant hydraulique
GB893294A (en) Hydraulic lifting gear
JPS53117126A (en) Fuel regulation device of stright line fuel injection pump
GB2009322A (en) Hydraulic telescopic lifting cylinder
US4243106A (en) Device for setting blade of earthmover
SU599892A1 (ru) Штапм дл выт жки с противодавлением
GB1114810A (en) An improved control valve device for an hydraulic work circuit
JPS54117879A (en) Device for anchoring piston rod for piston and cylinder device
GB1194623A (en) Hydraulic Ram Apparatus
SU692740A1 (ru) Система включени режимов работы гиравлического пресса
SU1756661A1 (ru) Блок гидроуправлени
JPS5670105A (en) Oil jack
JPS5737102A (en) Pressure augmentation hydraulic cylinder device
FR2357801A1 (fr) Vanne d'equilibrage de pression a fonctionnement automatique
SU1209946A1 (ru) Гидрораспределитель
GB837531A (en) Fluid pressure system

Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse