EP1083141A2 - Hydraulikaufzug mit wartungsgünstiger Hydraulikantriebeinheit - Google Patents
Hydraulikaufzug mit wartungsgünstiger Hydraulikantriebeinheit Download PDFInfo
- Publication number
- EP1083141A2 EP1083141A2 EP00119579A EP00119579A EP1083141A2 EP 1083141 A2 EP1083141 A2 EP 1083141A2 EP 00119579 A EP00119579 A EP 00119579A EP 00119579 A EP00119579 A EP 00119579A EP 1083141 A2 EP1083141 A2 EP 1083141A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- elevator
- cylinder
- piston
- drive unit
- 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- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
Definitions
- the present invention relates to a hydraulic elevator comprising an elevator car connected to a conveyor cable in an elevator conveyor area and one in the lower area of the elevator conveyor area provided hydraulic drive unit with a cylinder-piston arrangement, a hydraulic pump and a valve arrangement, the pressure cylinder and a hydraulic fluid reservoir of Hydraulic drive unit provided in a common housing are.
- a hydraulic elevator with a traction piston i.e. one Piston that is pulled into the cylinder when pressurized and thereby lifting the elevator car is known from US-A-4,830,146.
- a problem with such elevators is the accessibility of the whole Hydraulic drive unit and in particular the hydraulic pump and the Valve arrangement for maintenance and especially for Maintenance or repair when the hydraulic drive unit is depressurized and the elevator car is in the elevator conveyor area is at its lowest position, i.e. on the on the ground of the elevator conveyor area located damping element and is supported by this.
- elevator conveyor area denotes in usually the elevator shaft. However, it should also provide the opportunity leave open that the hydraulic lift is free, for example in a hall without being enclosed by a wall. In the following, instead of the term elevator funding area Term elevator shaft used in this broad sense.
- Another advantage of the inventive training of Hydraulic elevator is the space-saving and building construction the hydraulic drive unit. Compared to the hydraulic drive unit from US-A-4,830,146, in which the pump area next to the Cylinder / piston arrangement is provided is a higher one, however slimmer hydraulic drive unit by the present invention provided.
- elevator constructions increasingly focus on the required space is important, with the essential The criterion of the space requirement in the cross section of the elevator shaft is therein a particular advantage of the solution according to the invention.
- the hydraulic pump and the valve arrangement and possibly other components so on top of the housing of the Cylinder / piston arrangement to provide that thereby Basic cross section of the cylinder / piston arrangement not or not is significantly enlarged.
- a vent valve of the cylinder / piston arrangement is in the essentially on top of the cylinder / piston assembly housing intended.
- All hydraulic connecting lines are preferably between the hydraulic fluid reservoir, the pressure cylinder and the Hydraulic pump inside the cylinder / piston assembly housing guided. Should there be a break in one of the hydraulic lines come, the escaping hydraulic fluid remains in the common housing of the cylinder / piston assembly and can not in exit the elevator shaft. This is also for environmental reasons significant. In this way it is possible to in safety valves the hydraulic lines and especially in the hydraulic pressure lines to renounce. It also has the advantage that the whole system is very can be compact.
- the cable routing that is usual Constructions often only at the actual installation location is carried out, is already in the solution according to the invention in the factory assembling the hydraulic power unit made, which reduces additional work at the installation site. It is also possible in the case of the invention Construction of the hydraulic drive unit in the factory completely assemble and also carry out a complete functional test, which further clarifies the work required at the installation site simplified and reduced the effort. There is considerable in that Potential cost savings.
- the cylinder / piston arrangement is preferably with a pressure piston trained, i.e. the piston becomes from the cylinder / piston assembly pushed out and lifts the elevator car during this movement, and at the far end of the cylinder / piston assembly Pressure piston attached a pulley over which the conveyor rope runs, where the ratio between the movement distance of the elevator car and the movement distance of the pressure piston is 2: 1.
- the hydraulic drive unit is preferably on a frame mounted, which is arranged in the elevator conveyor area.
- the maintenance-relevant parts of the Hydraulic drive unit can be reached from the roof of the elevator car can, if the elevator car is not in the absolute deepest Position is in the elevator shaft, but in the usual way the basic stop, i.e. the deepest regular stop. It is also generally cheap if the fitter has the maintenance-relevant parts can easily reach at the basic stop in a kneeling position.
- this working height on best be realized if the hydraulic drive unit is one piece is installed far above the floor of the elevator shaft. That can on the one hand, a separate frame standing on the floor, alternatively, it is also possible that the drive unit on one of the Guide rails or other elevator components attached to the frame is appropriate.
- the invention further relates to a hydraulic drive unit for Use in a hydraulic elevator according to the invention.
- FIG. 1 shows a hydraulic elevator according to the invention.
- Man recognizes the elevator car 2 in the guide rails, not shown in the elevator shaft is guided.
- Hydraulic drive unit 4 at the upper end of which the pulley 6 is attached, over which the conveyor cable 8 is guided.
- the conveyor rope 8 is attached to its end drawn at the bottom left in the figure and the Elevator car 2 is attached to the opposite end.
- Under the Elevator car 2 has a damping element 10
- the elevator car 2 comes with the damping element 10 not in contact. Only if the Hydraulic drive unit 4 or another failure in Elevator system, the elevator car 2 sinks down to the damping element 10 from. The basic stop is above this lowest position.
- the hydraulic drive unit 4 has a common housing 12 a cylinder / piston arrangement. At the top of the housing 12 there is a hydraulic pump 14 and a valve assembly 16. A Piston 18 protrudes from the common housing with its upper end 12 out. A suitable fastening device 20 is attached to it the pulley 6 rotatably attached.
- the hydraulic drive unit 4 is constructed so that the piston 18th is pressurized out of the housing 12. Doing so the pulley 6 pushed up and the elevator car 2, the the conveyor cable 8 interacts with the pulley 6, raised. Therefore, the piston 18 is a pressure piston in the Contrary to a traction piston, which in the Housing 12 is pulled into it.
- the housing 12 has a flange 22.
- the frame 23 has essentially the same cylindrical shape Shape like the housing 12 d hydraulic drive unit 4. Should one A particularly small cross section of the hydraulic drive unit 4 is sought it is possible to place the hydraulic fluid reservoir inside the Provide frame 23.
- Housing 12 and frame 23 can also in one piece, i.e. without the connection through the flange 22, formed his.
- the flange 22 is circumferentially larger than the circumference of the Housing 12, which is required for manufacturing reasons.
- the area of the housing 12 where the valve assembly 16 and Hydraulic pump 14 are attached, are designed so that they Do not substantially exceed the diameter of the flange 22.
- valve arrangement 16 comprises four individual valves 28, 30, 32 and 34. At the top of valves 28, 30, 32 and 34 the control elements 36 can be seen. Lead control lines 38 for example from the hydraulic pump 14 to the individual valves. One can also see one in the upper area of the housing 12 Vent screw 26, by means of which air from the hydraulic system can be drained.
- Fig. 3 shows a section through the hydraulic drive unit 4.
- the pressure piston 18 is in the cylinder 42 Movable in the longitudinal direction.
- a hydraulic line 44 leads from the hydraulic fluid reservoir 40 to the hydraulic pump 14.
- a Another hydraulic line 46 goes from the hydraulic pump 14 in the Hydraulic cylinder 42 and opens essentially at the deepest Job.
- the hydraulic pump 14 When the hydraulic pump 14 is actuated, it sucks Hydraulic fluid from the hydraulic fluid reservoir 40 through the Hydraulic line 44 and presses it through the hydraulic line 46 in the hydraulic cylinder 42. This causes the pressure piston 18 to move upward shifted.
- Another hydraulic line goes for example from the hydraulic cylinder 42 also essentially starting from its deepest end upwards to the valve arrangement 16, where a valve is provided for opening and closing this line and then leads to the hydraulic fluid tank 40. Will that Valve of this line opened, so hydraulic fluid from the Cylinders, due to the force that piston 18 exerts thereon is at an elevated pressure level in the Drain hydraulic fluid reservoir 40. The piston 18 sinks down and the elevator car 2 is also lowered.
- An end cover 48 can be seen below the valve arrangement 16 of the hydraulic fluid tank 44, which at the same time Sealing element 50 of the cylinder / piston assembly 42/18 carries. Next the schematically shown sealing element 50 are further Sealing elements 52 shown cooperating with the piston 18.
- a control unit not shown, is also provided, which is connected to or can be arranged together with the hydraulic unit 4 or on another place, for example in the elevator shaft can.
- the Hydraulic drive unit 4 particularly compact and with the essentials Integrated components.
- Another advantage is to see that in this compact design, the housing 12 of Hydraulic drive unit 4 can be relatively simple and at the same time a protective housing for the hydraulic pump 14 and the Valve arrangement 16 forms. This allows separate housings for this Components can be saved.
- Another very special advantage is to see that the complete hydraulic drive unit 4 in the Factory can be prefabricated and tested so that they can be assembled only needs to be set up and built into the elevator system must become.
Abstract
Description
- Fig. 1
- einen erfindungsgemäßen Hydraulikaufzug;
- Fig. 2
- eine Detailansicht von Fig. 1 mit der Ventilanordnung und der Hydraulikpumpe in vergrößerter Darstellung; und
- Fig. 3
- eine Schnittansicht durch eine erfindungsgemäße Hydraulikantriebseinheit.
Claims (6)
- Hydraulikaufzug, aufweisend eine an einem Förderseil (8) angeschlossene Aufzugskabine (2) in einem Aufzugs-Förderbereich und eine im unteren Bereich des Aufzugs-Förderbereichs vorgesehene Hydraulikantriebseinheit (4) mit einer Zylinder/Kolbenanordnung (42/18), einer Hydraulikpumpe (14) und einer Ventilanordnung (16), wobei der Druckzylinder (18) und ein Hydraulikflüssigkeitsbehälter (40) der Hydraulikantriebseinheit (4) in einem gemeinsamen Gehäuse (12) vorgesehen sind,
dadurch gekennzeichnet,
daß die Hydraulikpumpe (14) und die Ventilanordnung (16) im wesentlichen oben auf dem Gehäuse (12) der Zylinder/Kolbenanordnung (42/18) angebracht sind, und
daß die Zylinder/Kolbenanordnung (42/18) derart in dem Aufzugs-Förderbereich angebracht ist, daß sich der Bereich der Zylinder/Kolbenanordnung (42/18) mit Hydraulikpumpe (14) und Ventilanordnung (16) oberhalb der Aufzugskabine (2) befindet, wenn diese an ihrer tiefsten Position im Aufzugs-Förderbereich ist. - Hydraulikaufzug nach Anspruch 1, dadurch gekennzeichnet, daß ein Entlüftungsventil (26) der Zylinder/Kolbenanordnung (42/18) im wesentlichen oben auf dem Gehäuse (12) der Zylinder/Kolbenanordnung (42/18) vorgesehen ist.
- Hydraulikaufzug nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sämtliche Hydraulikverbindungsleitungen (44; 46) zwischen dem Hydraulikflüssigkeitsbehälter (40), dem Druckzylinder (42) und der Hydraulikpumpe (14) innerhalb des Gehäuses (12) der Zylinder/-Kolbenanordnung (42/18) geführt sind.
- Hydraulikaufzug nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Zylinder/Kolbenanordnung (42/18) mit einem Druckkolben (18) ausgebildet ist und an dem von der Zylinder/Kolbenanordnung (42/18) entfernten Ende des Druckkolbens (18) eine Seilscheibe (6) angebracht ist, über die das Förderseil (8) läuft, wobei das Verhältnis zwischen der Bewegungsstrecke der Aufzugskabine (2) und der Bewegungsstrecke des Druckkolbens (18) 2:1 beträgt.
- Hydraulikaufzug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Hydraulikantriebseinheit (4) auf einem Gestell (23) montiert ist, das in dem Aufzugs-Förderbereich angeordnet ist.
- Hydraulikantriebseinheit (4) zur Verwendung bei einem Hydraulikaufzug nach einem der Ansprüche 1 bis 5.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999143408 DE19943408C2 (de) | 1999-09-10 | 1999-09-10 | Hydraulikaufzug mit wartungsgünstiger Hydraulikantriebseinheit |
DE19943408 | 1999-09-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1083141A2 true EP1083141A2 (de) | 2001-03-14 |
EP1083141A3 EP1083141A3 (de) | 2004-12-15 |
Family
ID=7921551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00119579A Withdrawn EP1083141A3 (de) | 1999-09-10 | 2000-09-07 | Hydraulikaufzug mit wartungsgünstiger Hydraulikantriebeinheit |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1083141A3 (de) |
DE (1) | DE19943408C2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1437321A1 (de) * | 2003-01-10 | 2004-07-14 | Otis Elevator Company | Hubzylinder, insbesondere für hydraulische Aufzüge |
US20100012436A1 (en) * | 2008-07-16 | 2010-01-21 | Block Jr William P | Hydraulic elevator system |
CN103900523A (zh) * | 2014-04-17 | 2014-07-02 | 上海江南长兴重工有限责任公司 | 液罐吊装变形测量方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1438727A (en) * | 1973-12-10 | 1976-06-09 | Sims A F | Hydraulically operated building hoist |
US4830146A (en) * | 1986-10-22 | 1989-05-16 | Hitachi, Ltd. | Fluid-pressure elevator |
EP0401863A2 (de) * | 1989-06-09 | 1990-12-12 | KONE Elevator GmbH | Hydraulischer Aufzug |
-
1999
- 1999-09-10 DE DE1999143408 patent/DE19943408C2/de not_active Expired - Fee Related
-
2000
- 2000-09-07 EP EP00119579A patent/EP1083141A3/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1438727A (en) * | 1973-12-10 | 1976-06-09 | Sims A F | Hydraulically operated building hoist |
US4830146A (en) * | 1986-10-22 | 1989-05-16 | Hitachi, Ltd. | Fluid-pressure elevator |
EP0401863A2 (de) * | 1989-06-09 | 1990-12-12 | KONE Elevator GmbH | Hydraulischer Aufzug |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1437321A1 (de) * | 2003-01-10 | 2004-07-14 | Otis Elevator Company | Hubzylinder, insbesondere für hydraulische Aufzüge |
US20100012436A1 (en) * | 2008-07-16 | 2010-01-21 | Block Jr William P | Hydraulic elevator system |
US8640829B2 (en) * | 2008-07-16 | 2014-02-04 | William P. Block, JR. | Hydraulic elevator system |
CN103900523A (zh) * | 2014-04-17 | 2014-07-02 | 上海江南长兴重工有限责任公司 | 液罐吊装变形测量方法 |
CN103900523B (zh) * | 2014-04-17 | 2016-05-18 | 上海江南长兴重工有限责任公司 | 液罐吊装变形测量方法 |
Also Published As
Publication number | Publication date |
---|---|
DE19943408A1 (de) | 2001-03-22 |
EP1083141A3 (de) | 2004-12-15 |
DE19943408C2 (de) | 2003-12-04 |
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