EP1400477B1 - Positioning of a driving machine for elevators - Google Patents

Description

The present invention relates to an elevator installation and to a method for the arrangement of a drive machine of an elevator installation according to the definition of the claims.

An elevator installation in which a drive machine moves a car and a counterweight via a drive cable and which elevator installation does not require a separate machine room is known from the utility model JP-50297/1992. As a guide for cabin and counterweight serve two vertical columns in the form of self-supporting U-profiles. The columns are terminated at their upper end with a horizontal crosshead on which the prime mover is mounted. By eliminating the engine room, this elevator system has the advantage of lower production costs.

The patent EP-1045811 shows an elevator installation in which a traverse carrying the drive machine is fastened to a total of four guides for the car and counterweight. In this way, the entire vertical weight of the prime mover, cab and counterweight is guided exclusively on these guides on the shaft bottom and supported there. Here are inexpensive, conventional guides use. In addition, there is the further advantage that the prime mover exerts no bending moments on the supporting guides, since only vertical forces act on the guides by this arrangement and attachment. A disadvantage of this elevator system is the restriction of the arrangement of the drive machine on the lateral shaft area in which run the guides.

The object of the present invention is to provide an elevator installation with a flexible arrangement of the drive machine. The prime mover is to be arranged freely selectable largely throughout the shaft area above the car and counterweight. The drive machine should be arranged to save space and be of small dimensions.

This object is achieved by the invention according to the definition of the claims.

The invention relates to an elevator installation with cabin and counterweight and a shaft. It has a drive unit mounted on a traverse. The traverse is attached via two end regions to a respective counterweight guide and it is fastened with a central region on at least one cabin guide.

The two counterweight guides and a cabin guide span a largely horizontal triangle in the shaft. The prime mover is of elongated and compact shape. Advantageously, the prime mover on two traction sheaves, which are arranged symmetrically, left and right of a horizontal connecting ends of the cabin guides.

As a result of this arrangement of the guides, which is symmetrical in the triangle, weight forces of the drive machine and bending moments occurring during operation of the drive machine are effectively absorbed and directed into the shaft bottom via the crossbar and the guides. The prime mover can be freely arranged on the surface of this triangle either largely above the counterweight and / or largely above the cabin. This flexibility with respect to the arrangement of the drive machine is made possible by the size and shape of the traverse and / or the number of pulleys used and / or the type of propellant used.

Fig. 1

eine schematische Darstellung der Dreiecks-Anordnung von Führungen einer Aufzugsanlage,

Fig.2

eine perspektivische Ansicht eines Teils eines ersten Ausführungsbeispiels der Anordnung einer getriebelosen Antriebsmaschine in 2:1-Aufhängung und in der vertikalen Projektion oberhalb des Gegengewichts,

Fig.3

eine schematische Draufsicht eines Teils des ersten Ausführungsbeispiels der Anordnung der Antriebsmaschine gemäss Fig. 2,

Fig.4

eine schematische Ansicht eines Teils des ersten Ausführungsbeispiels der Anordnung der Antriebsmaschine in 2:1-Aufhängung gemäss Fig. 2 und 3,

Fig. 5

eine schematische Draufsicht eines Teils eines zweiten Ausführungsbeispiels der Anordnung einer getriebelosen Antriebsmaschine in 2:1-Aufhängung und in der vertikalen Projektion oberhalb von Gegengewicht und/oder Kabine,

Fig.6

eine schematische Ansicht eines Teils des zweiten Ausführungsbeispiels der Anordnung der Antriebsmaschine in 2:1-Aufhängung gemäss Fig. 5,

Fig. 7

eine schematische Draufsicht eines Teils eines dritten Ausführungsbeispiels der Anordnung einer getriebelosen Antriebsmaschine in 2:1-Aufhängung und in der vertikalen Projektion oberhalb der Kabine,

Fig. 8

eine schematische Ansicht eines Teils eines dritten Ausführungsbeispiels der Anordnung der Antriebsmaschine in 1: 1 -Aufhängung gemäss Fig. 7,

Fig. 9

eine schematische Draufsicht eines Teils eines vierten Ausführungsbeispiels der Anordnung einer Antriebsmaschine mit Getriebe in 2:1-Aufhängung und in der vertikalen Projektion oberhalb der Kabine, und

Fig. 10

eine schematische Draufsicht eines Teils eines vierten Ausführungsbeispiels der Anordnung einer Antriebsmaschine mit Getriebe in 2: 1-Aufhängung gemäss Fig. 9.

In the following, the invention will be explained in detail with reference to exemplary embodiments according to FIGS. 1 to 10 . Hereby show:

Fig. 1

a schematic representation of the triangular arrangement of guides an elevator system,

Fig.2

3 is a perspective view of a part of a first embodiment of the arrangement of a gearless drive machine in a 2: 1 suspension and in the vertical projection above the counterweight,

Figure 3

FIG. 2 shows a schematic plan view of a part of the first exemplary embodiment of the arrangement of the drive machine according to FIG. 2 , FIG.

Figure 4

1 is a schematic view of a part of the first embodiment of the arrangement of the drive machine in 2: 1 suspension according to FIGS. 2 and 3 ,

Fig. 5

2 shows a schematic top view of a part of a second exemplary embodiment of the arrangement of a gearless drive machine in a 2: 1 suspension and in the vertical projection above the counterweight and / or cabin,

Figure 6

2 is a schematic view of a part of the second embodiment of the arrangement of the drive machine in a 2: 1 suspension according to FIG. 5 , FIG.

Fig. 7

1 is a schematic plan view of part of a third embodiment of the arrangement of a gearless drive machine in a 2: 1 suspension and in the vertical projection above the car,

Fig. 8

1 is a schematic view of a part of a third embodiment of the arrangement of the prime mover in 1: 1 suspension according to FIG. 7 ,

Fig. 9

a schematic plan view of a portion of a fourth embodiment of the arrangement of a prime mover with transmission in 2: 1 suspension and in the vertical projection above the cabin, and

Fig. 10

a schematic plan view of a portion of a fourth embodiment of the arrangement of a prime mover with transmission in 2: 1 suspension according to FIG. 9th

1 shows a schematic representation of the triangular arrangement of guides 5, 5 ', 9, 9' of an elevator installation. The elevator installation is, for example, arranged in a largely vertical shaft 10. The shaft 10 has, for example, a rectangular cross section with four walls. In the shaft largely vertically arranged cabin guides 5, 5 'and counterweight guides 9, 9' are attached. Two car guides carry a car 11 and two counterweight guides carry a counterweight 12. The guides are attached to nearest walls. The two counterweight guides 9, 9 'and a first cabin guide 5 are fixed to a first wall. The second cabin guide 5 'is attached to a second wall. The second wall is opposite the first wall. The first cabin guide 5 is arranged substantially centrally between the two counterweight guides 9, 9 '. The guides are made of proven materials such as steel. The attachment of the guides on the walls takes place, for example, via screw. With knowledge of the present invention, other shaft geometries with square, oval or round cross-section can be realized.

The two counterweight guides 9, 9 'and one of the two cabin guides 5, 5' span in the shaft 10 a largely horizontal triangle T. The horizontal connecting end between the two counterweight guides forms a first side of the triangle T. The horizontal connecting ends between a counterweight guide and a car guide form second and third sides of the triangle T. Advantageously, the horizontal connecting end of the counterweight guides is longer than a horizontal connecting end of the car guides that a triangle T consisting of guides 9, 9 ', 5 of the first wall has one of the horizontal connecting ends of the counterweight guides 9, 9' opposite obtuse angle or that a triangle T consisting of the counterweight guides 9, 9 'of the first wall and a Cabin guide 5 'of the second wall has one of the horizontal connecting ends of the counterweight guides 9, 9' opposite acute angle. Advantageously, the horizontal connecting end of the car guide cuts the horizontal connecting end of the Counterweight guides largely centered, so that the triangle T is largely isosceles.

FIGS. 2 to 10 show an engine 1, 2, 3, 3 ', 4, 40 with two traction sheaves 3, 3''. Advantageously, the traction sheaves 3, 3 'via a shaft 4 with a motor 1 and a brake 2 operatively connected. Advantageously, the motor and brake are arranged on two end regions of the shaft and the traction sheaves are arranged between the motor and the brake in a central region of the shaft. A controller and / or a converter of the elevator installation is advantageously arranged in a control box 6 on a wall in the shaft 10. In the Auführungsformen according to FIG. 2 to 8 , the drive machine is gearless and elongated shape, ie seen in a plane perpendicular to the axis of the shaft 4, the diameter of the drive machine is less than the length of the drive machine. In the Auführungsform according to FIGS . 9 and 10 , the drive machine is provided with a gear 40. Also in this Auführungsformen the prime mover is of elongated shape, ie seen in a plane perpendicular to the axis of the transmission 40, the diameter of the prime mover is less than the length of the prime mover.

Advantageously, two traction sheaves 3, 3 'symmetrically, left and right of a horizontal connecting ends of the cabin guides 5, 5' are arranged. Advantageously, the traction sheaves 3, 3 'are smaller in diameter than the motor housing and / or the brake housing.

The largely horizontally arranged in the shaft drive machine moves the at least one propellant 19, 19 'interconnected cabin and counterweight in the shaft. The propellant has two ends 18, 18 '. The propellant is a rope and / or a belt of any nature. The load bearing areas of the propellant are made of metal such as steel and / or plastic such as aramid. The rope can be a single or multiple rope, also the rope can be an external plastic protective cover exhibit. The belt can be flat and structurally unstructured on the outside or structured, for example, in V-ribs or toothed belts. Advantageously, two blowing agents are used.

• In der Ausführungsform gemäss Fig. 3 und 4 ist ein erstes Ende 18 des Treibmittels an der Schachtwand/Schachtdecke und/oder an der Kabinenführung 5' befestigt und ein zweites Ende 18' des Treibmittels ist an der Schachtwand/Schachtdecke und/oder an der Traverse 8 und/oder an der Kabinenführung 5 befestigt.
• In den Ausführungsformen gemäss Fig. 5 und 6 sowie 9 und 10 sind ein oder beide Enden 18, 18' des Treibmittels an der Schachtwand/Schachtdecke und/oder an der Kabinenführung und/oder an der Traverse befestigt.
• In der Ausführungsform gemäss Fig. 7 und 8 ist ein erstes Ende 18 des Treibmittels an der Kabine 11 befestigt und ein zweites Ende 18 des Treibmittels ist am Gegengewicht 12 befestigt.

Each of the ends of the propellant is fixed either to a shaft wall / shaft cover and / or to a cabin guide and / or to a counterweight guide and / or to a crossbeam 8 and / or to the cabin and / or to the counterweight. Advantageously, the ends of the propellant are fixed via elastic intermediate elements for damping structure-borne noise. The intermediate elements are, for example, spring elements which prevent the transmission of vibrations perceived as unpleasant from the propellant in the shaft wall / shaft ceiling and / or cabin guide and / or counterweight guide and / or traverse and / or cabin and / or counterweight. Several exemplary embodiments of fixations of the ends of the propellant are distinguished:

• In the embodiment according to FIGS. 3 and 4 , a first end 18 of the propellant is fastened to the shaft wall / shaft cover and / or to the cabin guide 5 'and a second end 18' of the propellant is attached to the shaft wall / shaft cover and / or to the crossbeam 8 and / or attached to the cab guide 5.
• In the embodiments according to FIGS. 5 and 6 as well as 9 and 10 , one or both ends 18, 18 'of the propellant are fastened to the shaft wall / shaft cover and / or to the cabin guide and / or to the crossbeam.
• In the embodiment of FIGS. 7 and 8 , a first end 18 of the propellant is attached to the cab 11 and a second end 18 of the propellant is secured to the counterweight 12.

According to the embodiments, two traction sheaves move two propellants via static friction. With the knowledge of the present invention, the person skilled in the art can also use other drive machines and drive methods other than those shown in the examples. Thus, the person skilled in the art can use a drive machine with only one or more than two traction sheaves. Also, the person skilled in the art can use a drive pinion, which drive pinion is in positive engagement with a toothed belt as a propellant.

• Im ersten Ausführungsbeispiel gemäss Fig. 2 bis 4, im zweiten Ausführungsbeispiel gemäss Fig. 5 und 6 und im vierten Ausführungsbeispiel gemäss Fig. 9 und 10 sind die Kabine und Gegengewicht 2:1 umgehängt. Bei der 2:1 Umhängung der Kabine 11 sind an der Kabine 11 mehrere Umlenkrollen 13, 13', 14, 14' angebracht. Bei der 2:1 Umhängung des Gegengewichts 12 ist am Gegengewicht 12 mindestens eine Umlenkrolle 17, 17' angebracht. Vorteilhafterweise ist die Antriebsmaschine in einem Bereich weitgehend oberhalb der Wegstrecke des Gegengewichts, d.h. in der vertikalen Projektion oberhalb des Gegengewichts angeordnet. Vorteilhafterweise ist die Antriebsmaschine in einem Bereich weitgehend vollständig oberhalb der Wegstrecke der Kabine angeordnet. Vorteilhafterweise ist die Antriebsmaschine in einem Bereich weitgehend oberhalb der Wegstrecke des Gegengewichts und der Kabine, d.h. in der vertikalen Projektion oberhalb des Gegengewichts und der Kabine angeordnet.
• Im dritten Ausführungsbeispiel gemäss Fig. 7 und 8 sind Kabine und Gegengewicht 1:1 umgehängt. Vorteilhafterweise ist die Antriebsmaschine im dritten Ausführungsbeispiel in einem Bereich weitgehend oberhalb der Wegstrecke der Kabine, d.h. in der vertikalen Projektion oberhalb der Kabine angeordnet. Vorteilhafterweise ist die Antriebsmaschine im dritten Ausführungsbeispiel vollständig oberhalb der Wegstrecke der Kabine angeordnet.

Several exemplary embodiments of hangers are distinguished:

• In the first embodiment according to FIGS. 2 to 4 , in the second embodiment according to FIGS. 5 and 6 and in the fourth embodiment according to FIGS. 9 and 10 , the car and counterweight are 2: 1 umgehängt. In the 2: 1 suspension of the cabin 11 a plurality of deflection rollers 13, 13 ', 14, 14' are attached to the cabin 11. In the case of the 2: 1 suspension of the counterweight 12, at least one deflection roller 17, 17 'is attached to the counterweight 12. Advantageously, the drive machine is arranged in a region substantially above the path of the counterweight, ie in the vertical projection above the counterweight. Advantageously, the drive machine is arranged in a region substantially completely above the path of the car. Advantageously, the drive machine is arranged in a region substantially above the path of the counterweight and the cabin, ie in the vertical projection above the counterweight and the cabin.
• In the third embodiment according to FIGS. 7 and 8 cabin and counterweight are 1: 1 umgehängt. Advantageously, the prime mover in the third embodiment in an area substantially above the path of the cabin, that is arranged in the vertical projection above the cabin. Advantageously, the prime mover in the third embodiment is located completely above the path of the car.

2 shows a perspective view of a part of a first exemplary embodiment of the arrangement of a gearless drive machine 1, 2, 3, 3 ', 4. The drive machine is mounted on the traverse 8 arranged largely horizontally in the shaft 10. The traverse is, for example, an elongated square made of proven materials such as steel. In this first embodiment, the traverse is attached to the counterweight guides 9, 9 'and to the cab guide 5 of the first wall. Advantageously, the traverse is attached to the counterweight guides via two end regions and to a cabin guide over a central region. The attachment of the traverse to these three guides is done in the three attachment areas eg. Via screw.

Advantageously, the drive machine is mounted indirectly via a bracket 7 on the cross member 8. Advantageously, the console is mounted on the central region of the traverse. For example. the console is mounted on the crossbeam 8 via feet 7.5, 7.6. The console consists, for example, of flat edge or square of proven materials such as steel and is, for example, mounted via screw on the crossbar. Advantageously, the prime mover is attached to the console via a motor housing and a brake housing. Advantageously, the motor housing is attached to a first console mount 7.1 and the brake housing to a second console mount 7.2. The two console holders 7.1, 7.2 are, for example, connected to one another in a rigid manner with respect to the axis of the shaft 4 via struts 7.3, 7.4. Advantageously, the console brackets 7.1, 7.2 at least partially boundaries of the motor housing and the brake housing. For example. include the console brackets 7.1, 7.2 end faces of the motor housing and the brake housing. Advantageously, motor 1 and brake 2 are arranged in a region substantially outside an envelope of the console 7, while the traction sheaves 3, 3 'are arranged in a region substantially within the envelope of the console 7.

The traverse 8 is attached at least at the vertices of the triangle T. Advantageously, the traverse 8 is located with two end portions on the Counterweight guides 9, 9 'on and with _dem the central region it is on the side of at least one car guide 5, 5'.

• Im Ausführungsbeispiel gemäss Fig. 2 bis 4 - wo die Antriebsmaschine in einem Bereich weitgehend oberhalb der Wegstrecke des Gegengewichts angeordnet ist - ist die Traverse 8 an den Gegengewichtsführungen 9, 9' und an der Kabinenführung 5 der ersten Wand befestigt, welche den Gegengewichtsführungen 9, 9' sowie der Kabinenführung 5 am nächsten liegt. Die Traverse hat die Form eines Rechtecks.
• Im Ausführungsbeispiel Fig. 5 bis 10 - wo die Antriebsmaschine in einem Bereich weitgehend oberhalb der Wegstrecke von Gegengewicht und/oder Kabine angeordnet ist - ist die Traverse 8 an den Gegengewichtsführungen 9, 9' an der Kabinenführung 5 der ersten Wand und/oder an der Kabinenführung 5' der zweiten Wand befestigt. Die Traverse hat in den Ausführungsbeispielen gemäss Fig. 5 bis 8 eine Dreiecksform mit geraden oder gebogenen Seiten und im Ausführungsbeispiel gemäss Fig. 9 und 10 eine T-Form.

Several exemplary embodiments of truss fixtures are distinguished:

• In the embodiment according to FIGS. 2 to 4 -where the drive machine is arranged in a region substantially above the path of the counterweight-the cross-member 8 is fastened to the counterweight guides 9, 9 'and to the cabin guide 5 of the first wall, which guides the counterweight guides 9, 9 'and the car guide 5 is closest. The traverse has the shape of a rectangle.
• In the embodiment of FIGS. 5 to 10 - where the prime mover is arranged in a region largely above the distance of counterweight and / or cabin - is the crossbar 8 on the counterweight guides 9, 9 'on the cabin guide 5 of the first wall and / or on the Cabin guide 5 'attached to the second wall. The traverse has in the embodiments according to FIG. 5 to 8 a triangular shape with straight or curved sides and in the embodiment according to FIGS. 9 and 10 a T-shape.

The console 7 and the traction sheaves 3, 3 'are advantageously arranged in a central region of the triangle T. Advantageously, the console is mounted on the central region of the traverse. For example. are in the first embodiment shown in FIG. 2, the feet 7.5, 7.6 of the console 7 on both sides of the cabin guide 5, 5 'and substantially equally spaced from the cabin guide 5, 5' mounted on the cross member 8. For example. are the traction sheaves 3, 3 'on both sides of the cab guide 5, 5' and arranged substantially equidistant from the cabin guide 5, 5 'on the shaft 4.

The prime mover can thus be freely arranged on the surface of the triangle T either largely above the counterweight and / or largely above the cabin. As a result of these symmetrical arrangement of the guides in the triangle T, weight forces of the drive machine and bending moments occurring during operation of the drive machine are, for example, effectively absorbed by the bracket and directed into the shaft bottom via the traverse and the guides. The guides are, for example, supported by foot plates on the shaft floor.

For example. In the exemplary embodiment according to FIG. 2, the first console mount 7.1 originates from the motor 1, and the second console mount 7.2 absorbs brake forces resulting from the brake 2. Also take the two console brackets 7.1, 7.2 on the traction sheaves 3, 3 'originating forces. Advantageously, the two traction sheaves 3, 3 'symmetrical, left and right of the horizontal connecting ends of the car guides 5, 5' are arranged.

Also, in the exemplary embodiments according to FIGS. 5 to 8 - where at least one guide roller 15, 15 ', 16, 16' is provided in the area above the counterweight and / or substantially above the cabin - forces originating from this guide roller can be produced by the crossbeam 8 take up. Advantageously, this deflection roller is attached to the cross member 8 or to the console 7. Advantageously, pairs of pulleys 15, 15 ', 16, 16' symmetrically, left and right of the horizontal connecting ends of the car guides 5, 5 'are arranged. The number and position of the pulleys flexibility in the arrangement of the drive machine on the surface of the triangle is possible. In particular, a high utilization of the shaft volume can be realized, whereby dead volume is largely avoided. Also, the arrangement of the prime mover can be flexibly adapted to predetermined manhole conditions, especially in modem maneuvers, which flexibility thus enables the use of standard parts and avoids costly special solutions.

Claims (11)

1. Lift installation with cage (11) and counterweight (12) in a shaft (10), with a drive engine (1, 2, 3, 3', 4, 40) mounted on a crossbeam (8), which crossbeam (8) is fastened to two counterweight guides (9, 9') and to a cage guide (5), characterised in that the drive engine (1, 2, 3, 3', 4, 40) is gearless and that the crossbeam (8) is fastened by way of each of two end regions to a respective counterweight guide (9, 9') and by a centre region to the cage guide (5) and that the two counterweight guides (9, 9') and the cage guide (5) are fastened to a first wall.
2. Lift installation according to claim 1, characterised in that the drive engine comprises two drive pulleys (3, 3') and that the drive pulleys are operatively connected by way of a shaft (4) with a motor (1) and a brake (2) and/or that the drive pulleys are arranged at the left and right of a horizontal connector of the cage guides.
3. Lift installation according to claim 2, characterised in that the drive pulleys are arranged between motor and brake on the shaft and/or that the drive engine is fastened by way of a motor housing and a brake housing to a support and/or that the drive pulleys are arranged substantially in a region within an enclosure of the support.
4. Lift installation according to one of claims 1 to 3, characterised in that the counterweight guides and the cage guide span a substantially horizontal triangle (T) and the crossbeam is fastened at the apices of the triangle.
5. Lift installation according to one of claims 1 to 4, characterised in that the cage guides and counterweight guides are arranged substantially vertically in the shaft and/or that the crossbeam is arranged substantially horizontally in the shaft and/or that the drive engine is arranged substantially horizontally in the shaft.
6. Lift installation according to one of claims 1 to 5, characterised in that the drive engine is mounted by way of the support (7) at the crossbeam and that the support is mounted at the centre region of the crossbeam.
7. Lift installation according to one of claims 1 to 6, characterised in that at least two drive means move the cage and the counterweight, that each drive means has two ends and that each of the ends of the drive means is fixed to a shaft wall or shaft ceiling, to the counterweight guide, to the cage guide, to the crossbeam, to the counterweight or to the cage.
8. Lift installation according to one of claims 1 to 7, characterised in that at least two drive means move the cage and the counterweight and that the drive means are belts.
9. Lift installation according to one of claims 1 to 8, characterised in that the cage is suspended 2:1 and the drive engine is arranged in a region above the travel path of the counterweight, that the cage is suspended 2:1 and the drive engine is arranged in a region substantially above the travel path of the cage, that the cage is suspended 2:1 and the drive engine is arranged in a region above the travel path of the counterweight and the cage or that the cage is suspended 1:1 and the drive engine is arranged in a region substantially above the travel path of the cage.
10. Method of arranging a drive engine (1, 2, 3, 3', 4, 40) of a lift installation, with a cage (11) and a counterweight (12) in a shaft (10), which drive engine is fastened on a crossbeam (8) to two counterweight guides (9, 9') and to at least one cage guide (5, 5'), characterised in that the crossbeam is fastened by way of each of two end regions to a respective counterweight guide and by a centre region to the cage guide and that the two counterweight guides (9, 9') and the cage guide (5) are fastened to a first wall.
11. Method according to claim 10, characterised in that the drive engine has two drive pulleys (3, 3') arranged to the left and right of a horizontal connector of the cage guides.

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