FI119322B - A method for modernizing a hydraulic lift - Google Patents

Description

119322

METHOD. FIELD OF THE INVENTION FOR MODERNIZING A HYDRAULIC LIFT

The invention relates to a method as defined in the preamble of claim 1.

BACKGROUND OF THE INVENTION

1-8 are known in the prior art. The hydraulic elevator is located in the elevator shaft 10 in the building. The hydraulic elevator comprises vertical car rails 1, 2 by which the car 8 is guided to move substantially in the shaft in the shaft. The hydraulic cylinder 5 is in the space between the shaft wall 4 and the basket 8.

The elevator may be a so-called elevator according to Figures 1-5 and 7. a rucksack-type back lift with the rails 1, 2 on the same side with the hydraulic cylinder 5 behind the rear wall of the car 8, or the side lift according to Figures 6 or 8 with the rails 1, 2 and the hydraulic cylinder 5 on the side adjacent the side wall, it is possible to provide a so-called. a walk-through basket with ·; * basket doors on opposite sides of the basket. ···· *: · - · Wall refers to the wall opposite to the car door and sidewall to the elevator car wall adjacent to the car door.

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The hydraulic cylinder 5 has a cylinder part substantially supported vertically to the fixed structure of the elevator shaft • ♦ * ·· ♦ * and a piston rod movable with respect to the cylinder part operably connected to the car body to move either directly mounted on the carriage 9 · ·· ί. ,, ί as in Figures 1, 2, 5 and 6 or non-direct use rope j) ·. 3, 4, 7 and 8. In the non-direct-acting hydraulic lift of Figures 3, 4, 7 and • ♦ ♦, the end of the piston rod • · *! * has a rope or idler 24 over which a rope 35 is guided. which is fixed at one end to a fixed structure at the lower end of the elevator shaft and secured at the other end to the sling 9. To provide hydraulic pressure for actuating the hydraulic / 2,119322 cylinder, the hydraulic elevator further comprises a hydraulic assembly 26 normally housed in an engine room 27 or in the vicinity.

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Hydraulic lifts are very common. Usually, they have been modernized by replacing components, such as a hydraulic unit, with new ones and the elevator is still kept hydraulically driven. The hydraulic lifts have also been modernized to completely replace them with a new counterweight traction sheave rope lift. One prior art method for modernizing a hydraulic elevator into a traction sheave is disclosed in GB2411887 A, wherein a counterweight, counterweight guide rails, and traction sheave are installed in place of the hydraulic elevator hydraulic mechanism.

The problem with the known methods of modernizing a hydraulic elevator, such as converting a hydraulic elevator into a conventional rope elevator, is its high cost and slow installation. 20 Maintaining the hydraulic lift hydraulically is also a problem with the hydraulic elevator's general problems, such as noise, high energy consumption, odors and the need to change hydraulic oils regularly. Disposal of · · mmmm · waste oil is hazardous waste that is disposed of * ♦. 25 expensive. In addition, there is still a need for engine room space for the hydraulic unit.

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PURPOSE OF THE INVENTION

The object of the invention is to eliminate the above-mentioned! * '30 disadvantages.

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. *. : It is a particular object of the invention to provide a method for converting a hydraulic lift into a traction sheave equipped with a rope pulling mechanism in such a way as to save and utilize as much as possible the existing hydraulic lift. structures.

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It is a further object of the invention to provide a modernization method for overcoming the problems associated with a hydraulic elevator.

SUMMARY OF THE INVENTION

The method according to the invention is characterized in what is stated in the characterizing part of claim 1.

Other embodiments of the invention are characterized by what is set forth in the other claims.

Inventive embodiments are also disclosed in the specification and drawings of this application. The inventive content contained in the application may also be defined otherwise than as set forth in the claims below.

The inventive content may also consist of a plurality of 15 separate inventions, especially if the invention is considered in the light of the express or implied subtasks or the benefits or classes of benefits achieved. In this case, some of the attributes contained in the claims below may be redundant for 20 inventive ideas.

The features of the various embodiments of the invention may be applied within the scope of the inventive basic idea in conjunction with other embodiments * j1.

In accordance with the invention, the hydraulic lift is upgraded to a traction sheave with a rope sheave mechanism, while retaining the old rails, installing a rope sheave • · · ;;; insert the basket between the basket guides in the clearance between the wall and the basket passage • · * ··· 1, and place the basket on the rope support • ·: .V / ropes. At the end of the gap * · · ϊ.ίφ! attaching to the rails and / or to the shaft wall a first type of drive module having at least one drive wheel and at least one first • · * "" 35 "deflection pulley mounted to the first module body, through which the rope (s) At one end of the shaft, a second machining module is mounted on the rails and / or on the shaft wall having at least one other diverting pulley mounted on the other modular frame, through which the rope (s) is guided. a third drive module mounted on the third module frame and having at least one third diverting pulley and at least one fourth diverting pulley disposed adjacent the platform between the rails of the ridge. at least one first driven pulley wheels. 10 via the fourth diverting pulley the rope or ropes are passed and directed towards the other end of the shaft, at least one second diverting pulley.

An advantage of the invention is that by utilizing the structures of a hydraulic elevator, such as 15 car lifts and platform guides, an elevator can be provided which is simple, light, safe and more energy efficient than before. It is possible to make the elevator very compact so that when installed in the elevator shaft, it "requires little shaft space 20 laterally and fits into the space between the rails, which is released when the hydraulic cylinder is removed.

«*« 1 *** '. A further advantage is the simple design * low maintenance requirements, short installation times, few installation errors, and one elevator installation.

• 1 · • · ···: 3: In one embodiment of the method, the hydrau

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old elevator car body and / or sling and / or body doors 30 and / or level doors.

11 In one embodiment of the method, the hydraulic 2 ♦ · V1: old elevator car and / or sling and / or car door and / or *! 1 "level doors are replaced by new.

. ··. 35 • · 3! 1 '. In one embodiment of the method, the first end of the shaft • · · * 2 is the upper end, wherein the first machining module is arranged near the upper end of the shaft. The other end of the shaft is the lower end, wherein the second machining module is disposed adjacent the lower end of the shaft 5 119322. Alternatively, the first end of the shaft is the lower end, wherein the first machining module is arranged near the lower end of the shaft. The other end of the shaft is an upper end, wherein the second machining module 5 is arranged in proximity to the upper end of the shaft.

In one embodiment of the method, the suspension ratio of the rope traction machine is selected such that sufficient friction is created between the traction sheave and the rope (s) to allow for counterweightless operation.

In one embodiment of the method, the suspension ratio of the rope pulling machine is chosen to be X: 1, where X is selected from 6, 8, 10, 12, 14.

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In one embodiment of the method, the elevator is provided with a counterweight.

In one embodiment of the method, a flat-form permanent magnet synchronous motor is used as the motor of the rope towing cable.

..Il * PHOTO LIST

In the following, the invention will be described in detail with reference to the accompanying drawings, with reference to the accompanying drawing, in which: Fig. 1 schematically illustrates a first hydraulic lift of a known prior art · ♦ ·, \ 30 • · *. · Fig. 2 is a sectional view II-II in Fig. 1, • φ 9 • · ··· • e Fig. 3 is a schematic side view of another known hydraulic lift, *: * ·: 35 Fig. 4 is a sectional view taken along the line IV-IV in Fig. 3, Fig. 5 is a schematic cross-sectional view of the prior art hydraulic lift of Fig. 1, Fig. 6 is a schematic sectional view of Fig. 5, respectively. a third hydraulic lift, Fig. 7 is a schematic cross-sectional view of a prior art hydraulic lift, Fig. 8 is a schematic view of Figs. 5-7, respectively. 9 illustrates the various modules used to retrofit a hydraulic lift, 15 shows 10 after the upgrade 9, 11 shows the 5 or 7 elevator after the modernization, 20 12 shows the 6 or 8 elevator after the modernization, and * • · · *** »...: Fig. 13 is an axonometric view showing a schematic view of a preferred rope pulling mechanism.

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DETAILED DESCRIPTION OF THE INVENTION

The previously known hydraulic elevator of FIGS. 1-8 may be upgraded to a traction sheave elevator of FIGS. 9-13 in accordance with the present invention by removing the hydraulic cylinder * · #. *. ·. The old connectors 1, 2 are retained. Then · «· a new cable traction unit 6 will be installed in the body guides 1, 2:. between the wall 4 and the carriageway * ·· *, ···. hydraulics cylinder inter in 5 to the vacated space.

• · * Γ 35 Basket 8 is placed on the support of the new rope pulling mechanism 6 rope (s) 7. During modernization, the old basket 8 and / or sling 9 and / or the car doors 10 and / or the level doors 11 of the hydraulic lift can be retained. Alternatively, 7 119322 can be replaced as necessary. The hydraulic machine assembly 26 and other elevator-related equipment may be removed from the engine room 27 and used for other purposes, such as storage and the like.

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Preferably, the rope pulling gear 6 consists of the three modules 12, 17 and 20 illustrated in Figures 9 and 10.

At the first end I of the shaft I, which in this example is the upper end, a first drive module 12 is attached to the carriage rails 1, 2 and / or to the wall 4 of the shaft 3 10. The first drive module 12 has at least one drive wheel 14 and at least the rope (s) 7 is led to pass. In addition, a motor 16 is provided for rotating the drive wheel 15. The motor 16 is preferably a flat-form permanent magnet synchronous motor which fits between the car rails 1, 2.

At one end of the shaft II, which in this example is the lower end 20, a second machining module 17 is attached to the basket guides 1, 2 and / or to the shaft wall 4. The second machining module 17 has at least one second diverting wheel 19 mounted on the second module body 18.

• · 25 * · ι «*, In addition, a sling 9 of the existing old basket 7 is attached to a third drive module 20 having a third • · · * ·! · Module body 21 mounted at least one third folding wheel 22 and at least one fourth diverting pulley 23 disposed adjacent the basket between the basket rails 1, 2. Upper: Y: through the third diverting pulley 22, the rope or ropes 7 are guided and directed towards at least one first diverting pulley at the first end of the shaft, i.e., ·, · at its upper end.

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* '· 15. Through the fourth diverting pulley 23, the rope or ropes 7) * ... * 35 are guided and directed towards at least one other diverting pulley 19 at one end of the shaft, i.e., · · * ·.

• · ·. *: In another (not shown) embodiment, it is also possible to mount the first drive module 12 at the lower end of the shaft and the second drive module at the upper end of the shaft.

119322 δ The suspension ratio of the rope traction machine 6 is selected such that sufficient friction is created between the traction sheave 14 and the rope / ropes 7 to allow unbalanced operation. For this purpose, the rope suspension ratio may be, for example, 6: 1 as illustrated in Figure 13, or in some other applications it may be 8: 1 or 10: 1 or 12: 1 or 14: 1. However, the cable traction system 6 can also be simplified and sufficient friction obtained by equipping the elevator 10 with a counterweight (not shown).

Fig. 13 is a schematic view of a rope pulling mechanism 6 with a rope suspension ratio of 6: 1. For the sake of clarity of the cable entries, the relative position and dimensions of the cable wheels 15 are not proportional to Figure 13.

The pulleys 15, 19, 22 and 23 are assembled into pulleys packets each containing one to three parallel pulleys. At the top of the shaft, the first drive module 12 has two adjacent diverting wheel packages A and B. The diverting wheel package A has parallel diverting wheels 151 and 152. The diverting wheel package B has one diverting wheel 153. The second drive module 17 has, ·. diverting wheel package C with parallel three diverting wheels 191, 192, 193. Closed in body sling 9 • «. The third machining module 20 in the 25 has

* Dual Bike Packages D and E. In the lower Dual Bike Package D

* * has three parallel pulleys 231, 232, 233. The upper pulleys package E also has three parallel pulleys 221, 222, 223.

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In the following, for clarity, the unit form is the rope, • ·. * ··. although it may comprise one or more parallel • · · • <rope 7. The first end 28 of rope 7 is attached • »· ··! ί to a second module body 18, from which the rope 7 • · · · ... · 35 is guided horizontally to the folding member 29 which folds. . *. rope 7 moving upwards vertically in the guided • · ·, ·. to the diverting wheel 31 in the carriage 30, over which the rope passes and folds back down and under the diverting wheel 32 in the second module body 17 further upwards over the diverting wheel 231 in the third machining module 20, further down in the diverting wheel 191 in the second machining module 17 over the diverting wheel 232 in the third machining module 20, of which 5 further down below the diverting wheel 192 in the second machining module 17 again upwardly over the diverting wheel 193 in the second machining module 17 to the uppermost pulley 12 in the first 10, the rope 7 rotates a couple of times through the diverting pulley 33 arranged below it and continues downward below the diverting pulley 221 in the third machining module 20 and further upwards in the first over and below downward deflection wheel 223 in first engine module 12 and downwardly downwardly in deflection wheel 153 in first machining module 12, to the attachment point 34 of the other end 34 of the rope 7.

····. Figures 11 and 12 further illustrate, in cross-sectional view, that in a modernized elevator, the entire * * rope traction unit 6 fits in the same narrow space between the car 8 and the shaft wall 4 with the hydraulic cylinder.

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Fig. 11 shows a backpack-type lift and Fig. 12 a side lift that can maintain the "· 30 prior to modernization in a hydraulic lift. ···.

It will be apparent to those skilled in the art that the invention is not limited to the embodiments described above, in which the invention, ·· *, 35 is exemplified, but many variations and various applications of the invention. are within the scope of the inventive idea defined in the claims below.

Claims (10)

A method of modernizing a hydraulic elevator, said hydraulic elevator being provided with a pair of basket guides (1, 2) on the same wall (4) in the elevator shaft (3), and the hydraulic cylinder (5) located between the basket guides (1, 2), and in which method the hydraulic cylinder (5) is removed from the elevator shaft (3) and in which method the hydraulic elevator is modernized to a drive disk elevator with winding machine (6), so that the old wagon guides (1, 2) are maintained, the winding machine (6) is mounted between the wagon guides the space between the wall (4) and the basket's runway as well as the basket (8) is suspended in the winding line (s) of the winding machine (6), ***** characterized by, • e # a '* a 25. that a first machinery module (12) was attached to. the basket guides (1, 2) and / or at the wall (4) of the shaft (3) at the first end (I) of the shaft (3), where on the first module body (13) is mounted at least one drive disk (14) and ··· · ... · at least one first switch disk (15), through which the carrier line (s) (7) is guided, and an engine (16) which drives: Y: the drive disk; *. - attaching a second machine module (17) to • a *. *. The basket guides (1, 2) and / or at the shaft wall (4) iaaa •• j andra the other end (II) of the shaft, where on the second module body ** .. * 35 (18) is mounted at least a second switch plate (19), via which: the carrier line (s) (7) is led, and aaa. : - attaching a third machine module (20) to the supporting frame (9) of the existing old basket (7), where on the third module body (21) is mounted at least a third switch disk 119322 (22) and At least a fourth switch disk (23) , which are arranged next to the basket between the basket guides (1, 2) and through which the third break disk (22) carries the carrier line (s) (7) and is directed to the at least one first drive disk (15) located at the first end (I) of the shaft, and via which the fourth break disk (23) carries the carrier line (s) (7) and is directed to the at least one second drive disk (19) located at the other end (II) of the shaft. 10 Method according to claim 1, characterized in that the winding machine (6) is mounted in the space which is released when the hydraulic cylinder (5) is removed. Method according to claim 1 or 2, characterized in that the old basket (8) and / or support frame (9) and / or basket doors (10) and / or shaft doors (11) of the hydraulic elevator are maintained. Method according to claim 1 or 2, characterized in that the old basket (8) and / or support frame (9) and / or basket doors (10) and / or shaft doors (11) of the hydraulic lift are replaced with new ones. • · * * '***. Method according to any one of the preceding claims, characterized in that the first end (I) of the shaft is * its upper end, the first machine module (12) being arranged near the upper end of the shaft, and the shaft of the shaft. the other end (II) is its lower end, the second or machine module (17) being arranged near the lower end of the shaft. · * · 30 A method according to any one of claims 1-4, ···. characterized in that the first end (I) of the shaft is its lower end, the first machinery module (12) being located near the lower end of the shaft, and that the second end (II) of its shaft is its The upper end, the second machine module (17) being arranged near the upper end of the shaft. A method according to any of the preceding claims, characterized in that the line suspension of the winding machine (6) is selected such that between the drive disk (14) and the carrier line (s) (7). ) upsets a friction sufficient to allow counterbalanced operation. 5 Method according to Claim 7, characterized in that the line suspension for the winding lines of the winding machine is selected for X: 1, where X is one of the following: 6, 8, 10, 12, 14. Method according to any of claims 1-8, characterized in that the lift is counterbalanced. Method according to any of claims 1-9, characterized in that the motor (16) used in the winding machine (6) is a flat permanent magnet synchronous motor. · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · • · · • 1 * 1 1 • • • • • • 1 1 • · · · · · 1 1 * · · · · 1 1 • * 1 · · 1 1 · · · · · 1 1 ·