EP1142816A1 - Dispositif de tension et d'amortissement hydraulique pour ascenseur - Google Patents

Dispositif de tension et d'amortissement hydraulique pour ascenseur Download PDF

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Publication number
EP1142816A1
EP1142816A1 EP01106667A EP01106667A EP1142816A1 EP 1142816 A1 EP1142816 A1 EP 1142816A1 EP 01106667 A EP01106667 A EP 01106667A EP 01106667 A EP01106667 A EP 01106667A EP 1142816 A1 EP1142816 A1 EP 1142816A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
piston rod
clamping device
tensioning
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Withdrawn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
EP01106667A
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German (de)
English (en)
Inventor
Ernst Ach
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP01106667A priority Critical patent/EP1142816A1/fr
Publication of EP1142816A1 publication Critical patent/EP1142816A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension

Definitions

  • the invention relates to a tensioning device for at least a lower rope of an elevator system according to the preamble of Claim 1.
  • fluid is any gas or any Meant liquid.
  • Lower cable tensioning devices have been known for a long time and are preferably used in traction elevators.
  • the tensioning device is intended, among other things, to guide the lower ropes, tension the lower ropes, keep the rope vibrations low, increase traction and prevent the counterweight or elevator car from jumping when the safety gear of the car or the counterweight is triggered or the car or the counterweight on the buffer meets. From speeds of 3.5 m / s, it must be equipped with an anti-jump device.
  • Anti-jump devices nowadays consist, for example, of safety devices which respond when the tensioning device moves upwards by a certain amount. It is precisely this particular amount that has an adverse effect.
  • the lower ropes are tensioned by the jumping counterweight (elastic links) and accelerate the falling counterweight. The forces are correspondingly great when the counterweight falls back into the suspension cables.
  • the tensioning device must be manually released once in the catch. Only instructed persons may carry out the relaxation. A process that is necessary for the system.
  • Damped clamping devices are known and they have that Advantage that it provides energy to the system when needed withdraw, causing the energy of the falling back Counterweight is reduced.
  • the invention has for its object a To create a tensioning device for at least one lower rope, which does not have the disadvantages mentioned above and a simple design allowed and without an external expansion tank gets along.
  • the damping of the jig will achieved by simple means.
  • Another advantage is that the Clamping device is inexpensive to manufacture.
  • Another advantage is that the cylinder and the piston rod is a guide system for the Form the clamping device.
  • FIG. 1 is a side view of a Lower cable tensioning device 1 shown, in which one Tensioner pulley 2.1 between a first double-acting Cylinder 3 and a second double-acting cylinder 4 can be seen.
  • the cylinders 3 and 4 are as Damping means trained and thus act as hydraulic or pneumatic dampers.
  • the tension pulley 2.1 is wrapped in lower ropes S, which is usually a Connect the elevator car to a counterweight.
  • the first double-acting cylinder 3 has an upper chamber 3.1 and a lower chamber 3.2, which by a first piston 5th are separated.
  • the second double-acting cylinder 4 has an upper chamber 4.1 and a lower chamber 4.2, which are separated by a second piston 6.
  • Chambers 3.1, 3.2, 4.1, 4.2 instruct inside as work equipment Fluid F, for example oil.
  • Fluid F for example oil.
  • An upper seal 7.1 is present and on the other second EA end of the first cylinder 3 below the lower chamber 3.2 there is a lower seal 7.2.
  • the second cylinder 4 has an upper seal 8.1 and a lower seal 8.2.
  • a first, preferably columnar, piston rod 9 extends vertically, that is axially over at least over the entire length of the first cylinder 3 at least one length equal to the length of the cylinder 3 plus corresponds to the stroke length.
  • the first piston rod 9 runs concentric within the first cylinder 3 and is for example by thread, with the first piston 5 connected. Above the first piston 5 Piston rod 9 through the upper chamber 3.1 and through the upper seal 7.1 of the first cylinder 3 through. In the in the same way the piston rod 9 goes below the first Piston 5 through the lower chamber 3.2 and through the lower Seal 7.2 of the first cylinder 3 through.
  • second piston rod 10 Similar to the first cylinder 3, one extends second, preferably columnar piston rod 10 vertically over at least the entire length of the second cylinder 4 and over at least one length, that of the length of the cylinder 4 plus the stroke length corresponds.
  • the second piston rod 10 runs concentrically within the second cylinder 4 and is connected to the second piston 6. Above the second Piston 6, the piston rod 10 passes through the upper chamber 4.1 and through the upper seal 8.1 of the second cylinder 4th by.
  • the piston rod 10 goes in the same way below the second piston 6 through the lower chamber 4.2 and through the lower seal 8.2 of the second cylinder 4th by.
  • the seals 7.1, 7.1, 8.1, 8.2 are on the corresponding piston rods 9, 10 slidably arranged.
  • the first piston rod 9 is double-sided Arranged with respect to the first piston 5. It will achieved the displacement in the upper chamber 3.1 of the first cylinder 3 is the same as that Displacement in the lower chamber 3.2 of the first Cylinder 3. The same naturally applies to the second piston rod 10 in the second cylinder 4.
  • the first piston rod 9 and the second piston rod 10 are fixed at both ends with a fixed one Structure 11.1, 11.2 connected.
  • the structure points preferably an upper support 11.1 and a lower support 11.2 on that above or below the two Zyilinder 3, 4 are arranged and on which the first Piston rod 9 and the second piston rod 10 are fixed.
  • the piston rod 9, 10 together with the piston 5, 6 are therefore not movable in relation to the structure 11.1, 11.2.
  • the lower support 11.2 is preferably on the shaft floor Fasteners B attached.
  • the tension pulley 2.1 is mounted in a frame 12.
  • the Frame 12 is on the side, for example by screws the cylinders 3, 4 connected.
  • the first piston rod 9 and the second piston rod 10 are used as a guide for the first Cylinder 3 or for the second cylinder 4 educated.
  • the piston rod-cylinder system thus forms a guidance system for the moving part of the Bottom cable tensioning device 1, that is, when the Tensioner moves, the two cylinders 3, 4 are together with the respective seals 7.1, 7.2, 8.1, 8.2 along the two piston rods 9, 10 moved and guided through them. Since the two pistons 5, 6 with the respective piston rods 9, 10 are connected, they remain during the movement of the Fixing device also fixed.
  • the upper chamber 3.1 of the first cylinder 3 is with the lower chamber 3.2 of the first cylinder 3 via a Connecting line 13 connected to a throttle 14th having.
  • the connecting line 13, also in the following called throttled connecting line 13, opens into this Embodiment in the area of the upper seal 7.1 and the lower seal 7.2 of the first cylinder 3.
  • the throttled line 13 is further via a first line 15 connected to the upper chamber 4.1 of the second cylinder 4.
  • the first line 15 could also directly the upper chamber 3.1 of the first cylinder 3 with the upper chamber 4.1 of the second Connect cylinder 4.
  • it is throttled connecting line 13 further via a second Line 16 with the lower chamber 4.2 of the second cylinder 4 connected.
  • the second line 16 could also directly lower chamber 3.2 of the first cylinder 3 with the lower one Connect chamber 4.2 of the second cylinder 4.
  • the first Line 15 and the second line 16 are intended to serve the Fluid flow of both cylinders 3, 4 via a common throttle 14 to lead.
  • the first piston 5 and the second piston 6 each have one Channel 17, 18 of the upper chambers 3.1 and 4.1 of the first Cylinder 3 and the second cylinder 4 with the corresponding lower chamber 3.1 and 4.2 of the first Cylinder 3 or the second cylinder 4 connects.
  • These channels 17 and 18 each have Check valve 19 or 20 on that in this Embodiment the flow of fluid from the upper chamber 3.1 or 4.1 in the lower chamber 3.2 or 4.2 and release in the opposite direction lock.
  • FIGS same elements with the same reference numerals as in Figure 1 shown.
  • FIG. 2 shows a front view of FIG. 1, with the two tensioners 2.1, 2.2 in the frame 12 and one Cylinder 3 connected to the frame 12 are visible. Out this figure can be seen more clearly, as in this one Embodiment the respective elements of the Clamping device arrangement are arranged to each other.
  • 11.2 is increased upper support 11.1 with the lower support 11.2 also with Struts 21 connected.
  • FIG. 3 is an enlargement of, for example Check valve 19 of the first cylinder 3 in the first piston 5 shown. It is preferably a common one Check valve 19, in which the fluid is only down can flow. The same applies to the check valve 20 of the second cylinder 4.
  • FIG. 4 shows a further preferred embodiment of the Invention shown, which is essentially the Embodiment according to Figures 1 and 2 corresponds.
  • the throttled connecting line 13 is via a third Line 22 a memory 23 connected.
  • the memory 23 has the function the leakage via the seals 7.1, 7.2, 8.1, 8.2 of the two cylinders 3, 4 is possible, compensate.
  • the third line 22 has a Another check valve 24 so that the fluid in only one Direction can flow.
  • the accumulator 23 could be designed as a pressure accumulator, in which the degree of filling of the memory 23 by, for example a pressure switch, not shown, can be monitored.
  • the tensioning device 1 wants her take the deepest position, the oil flows from the upper ones Chambers 3.1, 4.1 of the cylinders 3, 4 predominantly over the Check valves 19, 20 in the lower chambers 3.2, 4.2 of the Cylinder 3, 4.
  • the check valve turns on quick lowering of the tension rollers and a quick one Retensioning enabled.
  • a small memory 23 with a check valve is the same possible leakage.
  • the degree of filling can, for example be monitored electrically.
  • FIG evident Another embodiment of the invention is shown in FIG evident.
  • another throttled line 25 added to the upper chamber 4.1 of the second cylinder 4th with the lower chamber 4.2 of the second cylinder 4 too connect.
  • the further throttled line 25 is with a provided additional throttle 26.
  • the flow of the fluid F could thus in both cylinders 3, 4 independently of one another can be set.
  • the first Line 15 and the second line 16 may be omitted if, for example, the throttle 14 and the other Throttle 26 are set the same and the throttled Connecting lines 13 and 25 are the same size.
  • the two Lines 15 and 16 can be especially helpful if the two chokes 14 and 26 are set differently are.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP01106667A 2000-03-31 2001-03-16 Dispositif de tension et d'amortissement hydraulique pour ascenseur Withdrawn EP1142816A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01106667A EP1142816A1 (fr) 2000-03-31 2001-03-16 Dispositif de tension et d'amortissement hydraulique pour ascenseur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00810281 2000-03-31
EP00810281 2000-03-31
EP01106667A EP1142816A1 (fr) 2000-03-31 2001-03-16 Dispositif de tension et d'amortissement hydraulique pour ascenseur

Publications (1)

Publication Number Publication Date
EP1142816A1 true EP1142816A1 (fr) 2001-10-10

Family

ID=26073840

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EP01106667A Withdrawn EP1142816A1 (fr) 2000-03-31 2001-03-16 Dispositif de tension et d'amortissement hydraulique pour ascenseur

Country Status (1)

Country Link
EP (1) EP1142816A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2227429B1 (fr) 2007-12-21 2015-09-09 Inventio AG Système d'ascenseur à deux cabines d'ascenseur
WO2022110544A1 (fr) * 2020-11-26 2022-06-02 中国矿业大学 Appareil de réglage et procédé d'équilibrage de tension entre de multiples câbles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810529A (en) * 1973-05-25 1974-05-14 Westinghouse Electric Corp Elevator system
US4522285A (en) * 1983-10-20 1985-06-11 Otis Elevator Company Hydraulic tie-down for elevators
FR2639132A1 (fr) * 1988-11-14 1990-05-18 Feralco Convoyeurs Cie Limiteur d'effort, notamment pour elevateur a commande par chaine ou analogue
JPH06211465A (ja) * 1993-01-12 1994-08-02 Mitsubishi Denki Bill Techno Service Kk エレベーター用張り車装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810529A (en) * 1973-05-25 1974-05-14 Westinghouse Electric Corp Elevator system
US4522285A (en) * 1983-10-20 1985-06-11 Otis Elevator Company Hydraulic tie-down for elevators
FR2639132A1 (fr) * 1988-11-14 1990-05-18 Feralco Convoyeurs Cie Limiteur d'effort, notamment pour elevateur a commande par chaine ou analogue
JPH06211465A (ja) * 1993-01-12 1994-08-02 Mitsubishi Denki Bill Techno Service Kk エレベーター用張り車装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 579 (M - 1698) 7 November 1994 (1994-11-07) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2227429B1 (fr) 2007-12-21 2015-09-09 Inventio AG Système d'ascenseur à deux cabines d'ascenseur
WO2022110544A1 (fr) * 2020-11-26 2022-06-02 中国矿业大学 Appareil de réglage et procédé d'équilibrage de tension entre de multiples câbles

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