EP0162931A1 - Hydraulische Aufzüge - Google Patents

Hydraulische Aufzüge Download PDF

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Publication number
EP0162931A1
EP0162931A1 EP83401560A EP83401560A EP0162931A1 EP 0162931 A1 EP0162931 A1 EP 0162931A1 EP 83401560 A EP83401560 A EP 83401560A EP 83401560 A EP83401560 A EP 83401560A EP 0162931 A1 EP0162931 A1 EP 0162931A1
Authority
EP
European Patent Office
Prior art keywords
speed
cabin
controlling
elevator according
working fluid
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Withdrawn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
EP83401560A
Other languages
English (en)
French (fr)
Inventor
Philippe Boudillet
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.)
Siminor SA
Original Assignee
Siminor SA
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 Siminor SA filed Critical Siminor SA
Priority to EP83401560A priority Critical patent/EP0162931A1/de
Publication of EP0162931A1 publication Critical patent/EP0162931A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration

Definitions

  • the invention relates to improvements to hydraulic elevators. Hydraulic elevators have been around for a long time, but they have many flaws.
  • the working fluid used is water, corrosion problems due to rust or electrolysis effects ensue.
  • the fluid used is oil, the up and down speeds vary enormously with the load and with the temperature of the oil because of its viscosity variations.
  • the invention aims to remedy these drawbacks by controlling the speed of the elevator car by controlling the flow rate of the operating fluid of the hydraulic control and its adjustment as a function of a previously programmed speed reference also defining the progressive accelerations and decelerations of the speed of movement of said cabin.
  • the means for adjusting the speed of the cabin by modifying the flow rate of the working fluid exploiting the interface signal is a diaphragm valve cooperating with an electromagnetic metering micro-pump modifying, according to the error signal, the cross section of the fluid by inflating or deflating the membrane.
  • the cabin speed reference is programmed on the electronic control unit (7 fig. 1), it is adjustable within certain limits in order to allow progressive acceleration and deceleration.
  • the true speed of the cabin is obtained by measuring the oil flow by means of the sensor 20 (flow meter) of known type.
  • the invention is independent of the number of stepping motors used, these generally replace solenoid valves. In the diagram in fig. 2, a single stepping motor was used to control a flow adjustment valve.
  • the motor 9 of the pump 8 is started by closing conventional or static contactors in the control cabinet.
  • the pump 8 draws oil into the tank 11 via the filter 10.
  • the pressurized oil passes through a silencer 12 and returns initially to the tank 11 via the one-way valve 13 and the relief valve 14.
  • the electronic unit imposes a speed reference curve as a function of time in the form of a variable analog voltage, also a function of time or of signals digital, this speed is compared to the true speed provided by the speed-calibrated flow meter 20 in the form of analog voltage or digital signals.
  • a positive error signal is obtained amplified by an amplifier of known type which delivers a control signal from the stepping motor 23 in the proper direction.
  • the stepping motor makes several turns to obtain the almost complete opening of the valve 17. To be certain that the regulation acts, there is a possibility of additional opening in the event of a passing speed reduction due to an external cause , drop in supply voltage to the pump motor for example.
  • valve 17 As the stepping motor opens valve 17, the leakage flow through valve 14 decreases, but increases through valve 17 controlled by motor 23. Oil flow passes through the valve 18 then through the fluid rupture valve 21 to finally reach the piston 22.
  • a cabin displacement sensor for example by counting pulses of an encoder of a known model driven by cable or by any other known means.
  • Fig.3 shows schematically a variant of means for adjusting the flow rate of the working fluid to control the speed of movement of the cabin relative to that programmed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
EP83401560A 1983-07-28 1983-07-28 Hydraulische Aufzüge Withdrawn EP0162931A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP83401560A EP0162931A1 (de) 1983-07-28 1983-07-28 Hydraulische Aufzüge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83401560A EP0162931A1 (de) 1983-07-28 1983-07-28 Hydraulische Aufzüge

Publications (1)

Publication Number Publication Date
EP0162931A1 true EP0162931A1 (de) 1985-12-04

Family

ID=8191427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401560A Withdrawn EP0162931A1 (de) 1983-07-28 1983-07-28 Hydraulische Aufzüge

Country Status (1)

Country Link
EP (1) EP0162931A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382939A2 (de) * 1989-02-15 1990-08-22 Inventio Ag Hydraulisches Aufzugssystem
WO1996033940A1 (en) * 1995-04-28 1996-10-31 Otis Elevator Company Control system for an elevator
CN111866632A (zh) * 2020-07-28 2020-10-30 南京铁道职业技术学院 户外音响升降装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578478A5 (en) * 1974-06-11 1976-08-13 Sig Schweiz Industrieges Hydraulically operated platform control system - has motor driving screwed spindle passing through control plunger
US3977497A (en) * 1975-02-26 1976-08-31 Armor Elevator Company, Inc. Hydraulic elevator drive system
FR2302952A1 (fr) * 1975-03-04 1976-10-01 Maschf Augsburg Nuernberg Ag Dispositif electro-hydraulique d'entrainement pour appareils elevateurs
FR2507796A1 (fr) * 1981-06-16 1982-12-17 Otis Elevator Co Appareil pour la commande electromecanique d'ascenseurs hydrauliques et ascenseur commande par un tel appareil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578478A5 (en) * 1974-06-11 1976-08-13 Sig Schweiz Industrieges Hydraulically operated platform control system - has motor driving screwed spindle passing through control plunger
US3977497A (en) * 1975-02-26 1976-08-31 Armor Elevator Company, Inc. Hydraulic elevator drive system
FR2302952A1 (fr) * 1975-03-04 1976-10-01 Maschf Augsburg Nuernberg Ag Dispositif electro-hydraulique d'entrainement pour appareils elevateurs
FR2507796A1 (fr) * 1981-06-16 1982-12-17 Otis Elevator Co Appareil pour la commande electromecanique d'ascenseurs hydrauliques et ascenseur commande par un tel appareil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382939A2 (de) * 1989-02-15 1990-08-22 Inventio Ag Hydraulisches Aufzugssystem
EP0382939A3 (de) * 1989-02-15 1991-11-27 Inventio Ag Hydraulisches Aufzugssystem
WO1996033940A1 (en) * 1995-04-28 1996-10-31 Otis Elevator Company Control system for an elevator
US5603390A (en) * 1995-04-28 1997-02-18 Otis Elevator Company Control system for an elevator
CN111866632A (zh) * 2020-07-28 2020-10-30 南京铁道职业技术学院 户外音响升降装置

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19860213

17Q First examination report despatched

Effective date: 19870219

R17C First examination report despatched (corrected)

Effective date: 19870511

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIMINOR S.A.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19880217

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BOUDILLET, PHILIPPE