EP3052421A1

EP3052421A1 - Elevator installation

Info

Publication number: EP3052421A1
Application number: EP14781065.9A
Authority: EP
Inventors: Holger Zerelles; Bernd Altenburger; Ronald Dietze; Juri SCHÄFER
Original assignee: ThyssenKrupp Elevator AG
Current assignee: TK Elevator GmbH
Priority date: 2013-09-30
Filing date: 2014-09-29
Publication date: 2016-08-10
Anticipated expiration: 2034-09-29
Also published as: US10308479B2; DE102013110791A1; EP3052421B1; US20160236905A1; WO2015043758A1; ES2656704T3; CN105658561B; CN105658561A

Abstract

The invention relates to an elevator installation, comprising a shaft, in which at least one elevator car can be moved up and down in a vertical direction and is coupled to a counterweight by means of a cable assembly or belt assembly, wherein the cable assembly or belt assembly has at least one cable segment or belt segment whose horizontal deflection can be limited by at least one limiting element. According to the invention, in order to further develop an elevator installation in such a way that damage to a limiting element can be avoided in the event of a horizontal deflection of a cable segment or belt segment, at least one limiting element according to the invention is designed as a limiting roller, which is supported laterally adjacent to a cable or segment or belt segment in such a way that the limiting roller can be rotated about an axis of rotation and which can be caused to rotate by a controllable rotary drive in dependence on the speed and the direction of motion of the cable segment or belt segment arranged laterally adjacent to the limiting roller in relation to the axis of rotation of the limiting roller.

Description

elevator system

The invention relates to an elevator installation with a shaft in which at least one car is vertically movable upwards and downwards and coupled to a counterweight via a cable or belt arrangement, the cable or belt arrangement having at least one cable or belt section, whose horizontal deflection can be limited by at least one limiting member.

Elevator systems with at least one car and at least one counterweight are known in various configurations. The at least one car is still vertically up and down by means of a rope or belt arrangement in the shaft. The cable or belt arrangement can be guided via a traction sheave, which forms a drive device for the car together with a drive motor which sets the traction sheave in rotation. To compensate for its weight, the car is coupled via the cable or belt assembly with a counterweight.

If such elevator systems are used in very tall buildings, the cable or belt arrangement has a very long length. This can lead to the rope or belt arrangement being vibrated, for example, by a movement of the building in which the elevator installation is installed. Building movements of this kind can be caused by wind loads or, for example, by earthquakes. The vibrations lead to a deflection of the cable or belt assembly in the horizontal direction. In this case, there is the risk that a cable or belt section collides with a component of the elevator system, so that the cable or belt section or also the component of the elevator system is damaged.

CONFIRMATION COPY In order to limit horizontal deflections of a cable or belt section, WO 92/17396 proposes the use of a limiting member pivotable about a horizontal pivot axis, which can be positioned laterally on a cable or belt section in order to limit its horizontal deflection. If the limiting member is positioned laterally adjacent to a cable or belt portion while the car is traveling up or down, it may be the case that the cable or belt portion makes a movement relative to the limiting member and slides along the limiting member. This in turn may cause the rope or belt section to mechanically machine the limiting member. The limiting member must therefore have a high mechanical strength in order to avoid damage. In addition, the rope or belt section may also be damaged as it slides along the limiting member.

Object of the present invention is to develop an elevator system of the type mentioned in such a way that in the case of a horizontal deflection of a cable or belt section damage to a limiting member or the cable or belt section can be avoided.

This object is achieved in an elevator system of the generic type according to the invention that at least one limiting member is designed as a limiting role, which is rotatably mounted laterally next to a rope or belt portion about an axis of rotation, wherein the limiting role of a controllable rotary drive in dependence on the speed and the direction of movement, which has the cable or belt portion arranged laterally next to the limiting roller relative to the axis of rotation of the limiting roller, can be set in rotation.

In order to limit vibrations of a cable or belt section, at least one limiting roller is used in the elevator installation according to the invention, which is rotatably mounted and can be rotated by a rotary drive. This allows the speed of the side - - Has arranged next to the limiting role arranged rope or belt section with moving car relative to the limiting role to reduce. For this purpose, the controllable rotary drive can set the limiting roller in rotation as a function of the speed and the direction of movement which the cable or belt section has relative to the axis of rotation of the limiting roller. For example, it may be provided that the rotary drive approximates the peripheral speed of the limiting roller, which in the case of vibration contacts the cable or belt section arranged laterally next to the limiting roller, approximating the relative speed of this cable or belt section, wherein the contact area of the limiting roller to which the cable is attached - or belt portion can be applied at a horizontal deflection, in the same direction moves up or down as the rope or belt section. The cable or belt section and the contact area of the limiting roller thus have the same direction of movement. The greater the approach of the speeds, the smaller the speed at which the cable or belt section moves relative to the contact area of the restricting roller. This reduces the risk of damage to the rope or belt section and / or the limiting roller. The greater the speed of the cable or belt section relative to the axis of rotation of the limiting roller, the greater the circumferential speed of the limiting roller is selected, which is rotated by the controllable rotary drive in rotation. The controllable rotary drive can move the limiting roller clockwise and counterclockwise.

In the elevator installation according to the invention, the direction of rotation and the circumferential speed of the limiting roller used to limit a vibration of a cable or belt section arranged laterally next to the limiting roller can be adapted to the speed and the direction of movement of this cable or belt section relative to the axis of rotation of the limiting roller , This has the consequence that the cable or belt section, if he performs a horizontal deflection during a ride of the car and contacted the adjacent limiting roller on the outer periphery, at best at low speed relative to - -

Moves the outer circumference of the limiting roller so that neither the limiting roller nor the rope or belt section are seriously damaged.

It is particularly advantageous if the peripheral speed of the limiting roller corresponds to the speed of the cable or belt section arranged laterally next to the limiting roller relative to the axis of rotation of the limiting roller. In the case of a horizontal deflection, the cable or belt section contacts the outer periphery of the limiting roller. If the limiting roller is rotated by its rotary drive in such a way that the circumferential speed of the limiting roller is identical to the speed which the cable or belt section has relative to the axis of rotation of the limiting roller, then the cable or belt section rolls upon contact with the outer circumference of the limiting roller without causing a sliding movement and a mechanical processing of the limiting roller. Damage to the limiting roller and / or the rope or belt section can thereby be reliably prevented.

It is advantageous if the rotary drive which drives the limiting roller is coupled to an elevator control device, wherein the control device can provide the rotary drive with a control signal dependent on the speed and the direction of movement of the cable or belt section laterally adjacent to the limiting roller relative to the axis of rotation of the limiting roller is. The elevator control device controls the travel of the car and, favorably, also determines the speed and the direction of movement which a cable or belt section arranged laterally next to a limiting roller has relative to the axis of rotation of the limiting roller. On the basis of the determined, in particular calculated relative speed and the determined, in particular calculated direction of the relative movement, the elevator control device can provide the rotary drive of the limiting roller a control signal under whose action the rotary drive drives the limiting roller to such a rotational movement that its direction of rotation and peripheral speed to the relative speed and the direction of the relative movement of the adjacent rope or Belt section are adjusted. Thus, during operation of the elevator system, the peripheral speed and the direction of rotation of the restricting roller may change in accordance with the change in the relative speed and the change of direction of movement of the adjacent cable or belt section.

In an advantageous embodiment of the invention, at least one limiting roller is rotatably mounted in a predetermined position in the shaft. For example, it may be provided that at least one limiting roller is arranged in the shaft center with respect to the vertical extent of the shaft.

It can also be provided that the elevator system has a plurality of limiting rollers, which are arranged distributed uniformly in the shaft in an area between the uppermost stop of the at least one car and the lowermost stop of the at least one car.

It can also be provided that at least one limiting roller is rotatably mounted on a car. Such a positioning of at least one limiting roller on a car is particularly advantageous if a cable or belt section is guided along this car. The at least one limiting roller can in this case limit a deflection in the direction of the car in the event of vibration of the cable or belt section, so that the cable or belt section can not impair the car even when vibrations occur.

It is advantageous if the at least one limiting roller, which is arranged on a car, protrudes laterally over a side wall of the car with its peripheral region contacting a cable or belt section in the event of a lateral deflection. Such a positioning ensures that the rope or belt section extending laterally next to the car at most a horizontal deflection at the Peripheral area of the limiting roller but can not contact the side wall.

Preferably, at least one limiting roller is rotatably mounted laterally next to a cable or belt section, which extends in the vertical direction to a counterweight. This may be a suspension rope or strap section that extends upwardly in the vertical direction from the counterweight. Alternatively or additionally, it may also be a Unterseil- or lower belt section which extends in the vertical direction, starting from the counterweight down.

It is particularly favorable if, on opposite sides of the cable or belt section extending to the counterweight

Limiting rollers are rotatably mounted.

In an advantageous embodiment of the invention, at least one elevator car is arranged between two cable or belt sections, wherein at least one limiting roller is arranged laterally next to each of the two cable or belt sections. The two cable or belt sections may be aligned with respect to a central axis of the car point-symmetrical to each other. By providing in each case at least one limiting roller for limiting any lateral deflections of the cable or belt sections, it can be ensured in a structurally simple manner that the car positioned between the two cable or belt sections can not be affected by the cable or belt sections, when they are excited to vibrate.

It can be provided, for example, that the car is suspended from the two cable or belt sections. In such an embodiment, the two cable or belt sections form support means on which the car is held. To suspend the car at the rope or belt sections can be held on the car laterally outwardly projecting suspension elements. As suspension elements, for example, fastening elements can be used, each one a cable or belt end on the car. Alternatively, rotatable or non-rotatable suspension rollers can be used, around which the cable or belt sections are guided. Starting from the suspension means, the cable or belt sections extend upward in the vertical direction and in the case of vibrations lateral deflections of the cable or belt sections can be limited by means of limiting rollers.

In a particularly preferred embodiment of the invention, the elevator installation has a first car and a second car arranged below the first car, which are movable vertically upwards and downwards in the shaft and in each case via a cable or belt arrangement with a counterweight coupled, wherein at least one cable or belt arrangement comprises two cable or belt sections which, starting from one of the two cars, extend in the shaft in the vertical direction along opposite sides of the other car, which is arranged between the two cable or belt sections, wherein at least one limiting roller is rotatably mounted laterally next to each of the cable or belt sections in the shaft and / or on the car arranged between the two cable or belt sections.

The provision of two cars, which are arranged one above the other in a shaft and can be moved separately in a vertical direction upwards and downwards along a common roadway, the transport capacity of the elevator system can be increased. The two cars each have a drive means associated with a traction sheave, by means of which the respective car can be driven. Each of the two cars is assigned a counterweight to which the car is coupled via a cable or belt arrangement.

Elevator systems with two cars arranged one above the other in a shaft are used in particular in very tall buildings. As already explained, especially in such buildings there is a risk that Rope or belt sections are excited to vibrate, which have a horizontal deflection of the rope or belt sections result. In an arrangement of two cars one above the other, each of which is coupled via a cable or belt assembly with a counterweight, conveniently at least one of the two cars is positioned between two cable or belt sections, and damage to the car and / or along each other To avoid sides of the car extending rope or belt sections, each of the rope or belt sections associated with at least one limiting role that limits a lateral deflection of the cable or belt section and which is rotatably mounted in the shaft or on the car.

It is particularly advantageous if at least two limiting rollers are rotatably mounted on both cars, which are each positioned next to a cable or belt section.

It may be provided that two limiting rollers are rotatably mounted respectively at the top and at the bottom of the arranged between the two cable or belt sections car, which are arranged laterally next to an outgoing of the other of the two cars rope or belt section. The provision of limiting rollers both at the top and at the bottom of the car arranged between the two cable or belt sections ensures that the cable or belt sections can not contact the car even in the case of very strong vibrations.

As already mentioned, the second car is arranged below the first car. It is advantageous if the second car is suspended from two carrying cable or carrying belt sections, which extend from the second car in a vertical upward direction and between which the first car is arranged, wherein arranged next to each of the two Tragseil- or Tragriemenabschnitte at least one limiting roller is, which is rotatably mounted on the first car. By means of the first car rotating bar mounted limiting rollers, a horizontal deflection of the second car vertically upwardly extending support cable or strap sections are limited in the direction of the first car.

Conveniently, limiting rollers are rotatably mounted in the shaft in each case next to a supporting cable or carrying belt section, which are arranged on the sides facing away from the two cars of the supporting cable or carrying belt sections. By means of the shaft rotatably mounted in the boundary rollers thus horizontal deflections of Tragseil- or Tragriemenabschnitte can be limited in the facing away from the car directions, and by means of the first car rotatably mounted limiting rollers deflections of Tragseil- or support belt sections can be limited in the direction of the first car.

It is advantageous if at least one carrying cable or carrying belt section rotatably mounted limiting rollers are arranged on opposite sides.

The first car rotatably mounted limiting rollers are arranged in an advantageous embodiment of the invention at its top.

Alternatively, it may be provided that the limiting rollers rotatably mounted on the first car are arranged on the underside thereof.

It is particularly advantageous if limiting rollers are arranged both on the upper side and on the lower side of the first car, which delimit a horizontal deflection of the supporting cable or carrying belt sections extending upwards from the second car in a vertical direction.

It can also be provided that in addition to the first car rotatably mounted limiting rollers are also arranged on the second car rotatably mounted limiting rollers, which is a horizontal deflection of the second car outbound and limit in the vertical direction upwardly extending suspension cable or strap sections.

Particularly in the case of very tall buildings and correspondingly very long catenary or carrying belt arrangements, it is favorable if the weight of each catenary or carrying belt arrangement is compensated by a lower cable or lower belt arrangement. In such an embodiment, each car is coupled via a suspension cable or support belt assembly and additionally via a sub-cable or sub-belt arrangement with its counterweight. The suspension cable or suspension belt arrangement is guided via a traction sheave arranged above the two cars and the sub-cable or

Lower belt assembly is guided over a arranged below the two cars deflection.

In an advantageous embodiment of the invention, the first car is coupled via two Unterseil- or lower belt sections with a counterweight, the Unterseil- or lower belt sections extend from the first car vertically downwards and the second car is disposed between the two Unterseil- or lower belt sections, and wherein adjacent to each of the lower cable or lower belt sections at least one limiting roller is arranged, which is rotatably mounted on the second car. In such an embodiment, to limit horizontal deflections of the lower cable or lower belt sections, between which the second car is arranged, at least two limiting rollers are used, which are rotatably mounted on the second car.

It is advantageous if in each case next to a sub-belt or lower belt section limiting rollers are arranged, which are positioned on the side facing away from the two cars sides of the Unterseil- or lower belt sections. By means of the limiting rollers arranged in the shaft, a lateral deflection of the lower cable or lower belt sections in the directions facing away from the cars can thus be limited, and by means of the limiting rollers rotatably mounted on the second elevator car, a horizontal movement can be achieved. zontal deflection of Unterseil- or lower belt sections are limited towards the second car.

It is advantageous if at least one sub-string or lower-belt portion rotatably mounted limiting rollers are arranged on opposite sides.

The second car rotatably mounted, a lateral deflection of a Unterseil- or lower belt section limiting limiting rollers are rotatably mounted in an advantageous embodiment of the invention at the top of the second car.

Alternatively, it can be provided that, to limit lateral deflections of the undercarriages or lower belt sections guided along the second car, limiting rollers are rotatably mounted on the underside of the second car.

It is particularly advantageous if limiting rollers are rotatably mounted both on the upper side and on the underside of the second car, which are arranged a lateral deflection of the outgoing from the first car and vertically downwardly extending Unterseil- or lower belt sections.

It can also be provided that in addition to the second car rotatably mounted limiting rollers are also arranged on the first car rotatably mounted limiting rollers which limit a horizontal deflection of the outgoing from the first car and extending vertically downwardly extending Unterseil- or sub-belt sections.

Especially in elevator systems with two superimposed and separately movable cars, it is advantageous if at least one limiting roller is mounted laterally next to a rope or belt section rotatable in the shaft, which is in the vertical direction downwards or upwards extends to a counterweight, as has already been explained above.

The following description of advantageous embodiments of the invention is used in conjunction with the drawings for further explanation. Show it :

Figure 1: a schematic longitudinal sectional view of a first advantageous

Embodiment of an elevator installation according to the invention;

FIG. 2 shows a sectional view of the elevator installation along the line 2-2 in FIG.

FIG. 3 shows a schematic illustration of a second advantageous embodiment of an elevator installation according to the invention;

Figure 4: a schematic representation of a third advantageous embodiment of an elevator system according to the invention.

FIGS. 1 and 2 schematically show a first advantageous embodiment of an elevator installation according to the invention, which is generally designated by reference numeral 10. The elevator installation 10 comprises a shaft 12 having a rear wall 14, a front wall 16 and a first side wall 18 and a second side wall 20. The shaft 12 extends in the vertical direction from a shaft pit 22, which delimits vertically downward from a shaft bottom 24 is up to a shaft head 26 which is bounded vertically upwards by a shaft ceiling 28.

In the shaft 12 is a car 30 along per se known and therefore not shown in the drawing to obtain a better overview in the drawing rails in the vertical direction up and down. To drive the car 30 is a drive device with a - -

Traction sheave 32 used, which can be rotated by a drive motor, not shown in the drawing in rotation. The drive motor of the traction sheave 32 is connected to an elevator control device 34, which controls the elevator system 10.

The car 30 is coupled via a suspension cable arrangement 36 with a counterweight 38. Instead of a support cable arrangement 36, a support belt arrangement could alternatively be used.

The carrying cable arrangement 36 is guided over the traction sheave 32 and comprises a first carrying cable section 40 and a second carrying cable section 42, on which the car 30 is suspended. The car 30 is positioned between the two catenary sections 40, 42, with the two catenary sections 40, 42 extending along facing car sides. Starting from a first cable end 44, which is fixed to the shaft ceiling 28, the first support cable section 40 extends vertically down to a first Aufhängerolle 46, which faces on the underside 48 of the first car 30 of the second side wall 20 of the shaft 12 is rotatably mounted. A second suspension roller 50 is rotatably mounted on the underside 48 of the elevator car 30 facing the first side wall 18 of the shaft 12. A connecting portion 52 of the support cable assembly 36 extends in a horizontal direction substantially diagonally along the underside 48 and connects the first support cable section 40 with the vertically adjoining the second suspension roller 50 second support cable section 42 which extends to the traction sheave 32. From the traction sheave 32 extends a third support cable section 54 to a deflection roller 56 which is rotatably mounted on an upper side of the counterweight 38. Starting from the first guide roller 56, a fourth carrying cable section 58 extends in the vertical direction up to a second cable end 60, which is fixed to the shaft ceiling 28.

In order to limit a horizontal deflection of the first support cable section 40 in the direction of the second side wall 20, the shaft can be moved in vertical direction. tion approximately centrally a first limiting roller 62 rotatably mounted about a first axis of rotation 64. The first limiting roller 62 is arranged on the side of the first carrying cable section 40 facing the second side wall 20, so that horizontal deflections of the first carrying cable section 40 in the direction of the second side wall 20 can be limited by means of the first limiting roller 62.

In order to limit lateral deflections of the first support cable section 40 in the direction away from the second side wall 20, a second limiting roller 70 is rotatably mounted about an axis of rotation 72 on the upper side 66 of the car 30 laterally next to the first support cable section 40. The fixed to the shaft ceiling 28 first carrying cable section 40 performs in the vertical direction no movement relative to the first limiting roller 62. Therefore, in the case of vibration, the first support rope portion 40 may contact the first restriction roller, but does not slide along the first restriction roller, so that the danger of damaging the first restriction roller 62 by the first support rope portion 40 is small. In contrast, the first support rope section 40 relative to the cage 30 rotatably mounted on the second limiting roller 70 when driving the car 30 up or down by a movement relative to the second limiting roller 70 by. In order to avoid that the first supporting cable section slides along the second limiting roller 70 in the case of a horizontal deflection and damages the second limiting roller 70, the second limiting roller 70 is associated with a rotary drive in the form of a controllable electric motor 74, with the aid of which the second limiting roller 70 moves around the second limiting roller 70 Rotary shaft 72 is set in rotation. The electric motor 74 is connected to the elevator control device 34 via a control line, not shown in the drawing to achieve a better overview. As explained in more detail below, the peripheral speed and the direction of rotation of the second limiting roller 70 can be adjusted by means of the electric motor 74 to the speed and the direction of movement of the first supporting cable section 40. On the side facing away from the second limiting roller 70, a third limiting roller 78 is rotatably mounted about an axis of rotation 80 on the upper side of the car 30. The third limiting roller 78 is associated with a controllable rotary drive in the form of an electric motor 82, by means of which the third limiting roller 78 can be rotated about the third axis of rotation 80 in rotation. The third electric motor 82 is connected to the elevator control device 34 via a control line not shown in the drawing.

At the level of the first limiting roller 62, a fourth limiting roller 86 is rotatably mounted about an axis of rotation 88 on the first side wall 18 of the shaft 12. The fourth limiting roller 86 is associated with a controllable rotary drive in the form of an electric motor 90, by means of which the fourth limiting roller 86 can be rotated about the fourth axis of rotation 88. The fourth electric motor 90 is also connected to the elevator control device 34 via a control line.

By means of the first limiting roller 62 and the fourth limiting roller 86, horizontal deflections of the two carrying cable sections 40, 42 can be limited in the direction facing away from the car 30, and by means of the second limiting roller 70 and the third limiting roller 78, horizontal deflections of the two carrying cable sections 40, 42 in FIG Direction be limited to the car 30.

In a vertical movement of the elevator car 30, the first support cable section 40 moves relative to the rotation axis 72 of the second restriction roller 70 and the second support cable section 42 moves relative to the rotation axis 80 of the third restriction roller 78 and also relative to the rotation axis 88 of the fourth restriction roller 86 In order to prevent the first supporting rope section 40 from sliding along the outer circumference of the second limiting roller 70 during a horizontal deflection and resulting in mechanical machining of the second limiting roller 70 or the first suspension cable section 40, the peripheral speed and the direction of rotation of the second limiting roller 70 can be controlled by the controllable electric motor 74 on - - the relative speed and direction of movement are adapted, which has the first support cable section 40 relative to the axis of rotation 72 of the second Begrenzungsgrolle 70. This has the consequence that the second limiting roller 70 rolls with its outer circumference on the first supporting cable section 40, without resulting in a relative movement between the first supporting cable section 40 and the outer periphery of the second limiting roller 70. In order to control the circumferential speed as a function of the relative speed and direction of movement of the first carrying cable section 40, the electric motor 74 is provided by the elevator control device 34 with a corresponding control signal.

The first carrying cable section 40 does not perform any vertical movement relative to the first limiting roller 62 during a movement of the car 30. The first limiting roller 62 therefore requires no rotary drive to their

Adjust peripheral speed and direction of rotation to the speed and direction of movement of the first support cable section 40 relative to the axis of rotation 64 of the first limiting roller 62.

An adjustment of the peripheral speed and the direction of rotation to the relative speed and direction of movement of the second support cable section 42, however, takes place in the third limiting roller 78 and the fourth limiting roller 86. For this purpose, the peripheral speeds and directions of rotation of the third limiting roller 78 and the fourth limiting roller 86 to the relative speed and Movement direction are adapted to the second support cable section 42 during a movement of the car 30 relative to the axis of rotation 80 of the third limiting roller 78 and relative to the axis of rotation 88 of the fourth limiting roller 86. The electric motors 82 and 90 of the third limiting roller 78 and the fourth limiting roller 86 are provided by the elevator control device 34 corresponding control signals. This has the consequence that the second carrying cable section 42, when the car 30 moves, is located on the outer circumference of the third limiting roller 78 and also on the outer circumference of the fourth limiting roller 78. roll 86 rolls off. Damage to the third restricting roller 78 and the fourth restricting roller 86 can thereby be reliably prevented.

The arrangement of the limiting rollers 62, 70, 78 and 86 is particularly clear from Figure 2, wherein in Figure 2 to achieve a better overview, the counterweight 38 is not shown.

Further limiting rollers 92, 93, 94 and 95 are rotatably mounted in the shaft 12 on both sides of the third and fourth support cable sections 54, 58. Like the above-described limiting rollers 70, 78, 86, the limiting rollers 92-95 can each be rotated by a controllable electric motor in such a way that their direction of rotation and peripheral speed corresponds to the direction of movement and the relative speed of the carrying cable sections 54 and 58, respectively. Horizontal deflections of the suspension cable sections 54, 58 extending in a vertical direction relative to the counterweight 38 can thereby be limited without the suspension cable sections 54, 58 or the limiting rollers 92-95 being damaged.

A second advantageous embodiment of an elevator installation according to the invention is shown schematically in FIG. 3 and is generally designated by reference numeral 100. The elevator installation 100 has a shaft 102, in which a first car 104 and a second car 106 arranged below the first car 104 are separated from each other in a vertical direction, along common guide rails, which are not shown in the drawing for better clarity and are movable down.

The first car 104 is coupled via a first support cable arrangement 108 to a first counterweight 110, wherein the first support cable arrangement 108 is guided via a first traction sheave 112, which can be set in rotation by a drive motor, not shown in the drawing, for moving the first car 104 The control of the first traction sheave 112 takes place by means of an elevator control device 114. - -

The second car 106 is coupled to a second counterweight 118 via a second support cable assembly 116. The second support cable assembly 116 is guided over a second traction sheave 120, which can be rotated by a drive motor, not shown in the drawing in rotation. The control of the second traction sheave 120 is likewise effected by means of the elevator control device 114.

In a manner corresponding to the suspension cable arrangement 36 explained above with reference to FIGS. 1 and 2, the second suspension cable arrangement 116 of the elevator installation 10 also has a first suspension cable section 122 and a second suspension cable section 124. The first carrying cable section 122 extends in the vertical direction, starting from a first cable end 128 fixed to the shaft ceiling 126 of the shaft 102, to a first hanging roller 130 arranged on the underside of the second car 106, and the second carrying cable section 124 extends in a horizontal direction starting from a arranged on the bottom of the second car 106 second Aufhängerolle 132 to the second traction sheave 120th

The first car 104 is disposed between the first carrier cable section 122 and the second carrier cable section 124. In order to limit vertical deflections of the first carrying cable section 122 and of the second carrying cable section 124, in the elevator installation 100 shown in FIG. 3, a first limiting roller 134, a second limiting roller 136, similarly to the elevator installation 10 shown schematically in FIGS. a third limiting roller 138 and a fourth limiting roller 140 are used, wherein the second limiting roller 136, the third limiting roller 138 and the fourth limiting roller 140 each of an associated rotary drive in the form of a controllable electric motor 142, 144 and 146 in dependence on the relative speed and the Movement direction, the first support cable section 122 and the second support cable section 124 to the axis of rotation of the respective limiting rollers 134, 136 and 138, 140, respectively, can be set in rotation. The electric motors 142, 144, 146 are for this purpose via not shown in Figure 3 control lines with the elevator control device 114 in connection. The elevator control device 114 provides the electric motors 142, 144 and 146 with control signals that depend on the speed and the direction of movement, the first support cable section 122 relative to the rotation axis of the second restriction roller 136 and the second support cable section 124 relative to the rotation axes of the third restriction roller 138 and the fourth restricting roller 140. As already explained, it can thereby be ensured that the first carrying cable section 122 can roll on the outer circumference of the second limiting roller 136 and that the second carrying cable section 124 can roll on the outer circumference of the third limiting roller 138 and the fourth limiting roller 140.

In addition to the limiting rollers 134, 136, 138 and 140, five further limiting rollers 148, 150, 152, 154 and 156 are used in the elevator installation 100. In each case two limiting rollers 148, 150 are rotatably mounted on an upper side of the first car 104, and two further limiting rollers 152, 154 are rotatably mounted on the underside of the first car 104. A further limiting roller 156 is rotatably mounted in the shaft 102 laterally next to a third carrying cable section 158, which is mounted in a manner similar to the third carrying cable section 54 described above with reference to FIG. 1 between the second driving pulley 120 and one rotatably mounted on the upper side of the second counterweight 180 Deflection pulley 160 extends.

The limiting rollers 148, 150, 152, 154 and 156 can each be rotated by a controllable rotary drive in the form of an electric motor 162, 164, 166, 168 or 170, wherein the peripheral speed and the direction of rotation of the limiting rollers 148, 50, 152, 154 and 156 respectively corresponds to the relative speed and the direction of movement, which in the case of a horizontal deflection contacting the respective limiting roller carrying cable section 122, 124 and 158 relative to the axis of rotation of the respective limiting roller. Also, the electric motors 162, 164, 166, 168 and 170 are connected to the elevator control device 114 via control lines, not shown in FIG. 3, which provide control signals to said electric motors as a function of the relative speed and direction of movement of the suspension cable sections 122, 124 and 158.

In the elevator apparatus 100 thus can horizontal displacements of the support ^¬ cable sections 122, 124 and 158 by means of the laterally arranged next to the support cable sections 122, 124 and 158 limiting rollers 134, 136, 138, 140, 148, 150, 152, 154 and 156 is limited, without the risk that the limiting rollers and / or suspension cable sections will be damaged.

4 shows a third advantageous embodiment of an elevator system according to the invention is shown schematically, which is generally occupied by the reference numeral 180. 3, the elevator installation 180 shown in FIG. 4 also has a shaft 182 into which a first car 184 and a second car 186 arranged below the first car 184 are separated from one another in the vertical direction can be moved up and down. The first car 184 is coupled to a first counterweight 190 via a first catenary assembly 188, with the first catenary assembly 188 passing over a first traction sheave 192, and the second car 186 being coupled to a second counterweight 196 via a second catenary assembly 194 second carrying cable arrangement 194 is guided via a second traction sheave 198.

In a similar manner to the second car 106 explained above with reference to FIG. 3, the second car 186 of the elevator installation 180 is suspended on a first support cable section 200 and a second support cable section 202, and the first car 184 assumes a position between the first support cable section 200 and the first car second carrying cable section 202 a. - -

In order to limit any horizontal deflections of the first supporting cable section 200, a first limiting roller 204 is rotatably mounted about an axis of rotation 205 and at the bottom of the first car in the vertical direction approximately in the middle of the shaft 182 on the side facing away from the cars 184, 186 side of the first support cable section 200 184, a second limiting roller 206 is rotatably mounted about an axis of rotation 208, wherein the second limiting roller 206 is associated with a controllable rotary drive in the form of an electric motor 210, by means of which the second limiting roller 206 depending on the speed and the direction of movement, the first support cable section 200th relative to the axis of rotation 208 of the second limiting roller 206, is set in rotation. The electric motor 210 is connected via a control line not shown in FIG. 4 to an elevator control device 212 of the elevator installation 180.

In order to limit any horizontal deflections of the second carrying cable section 202, a third limiting roller 214 is rotatably mounted about a rotation axis 216 in the vertical direction approximately in the middle of the shaft, which is dependent on the speed and the direction of movement, the second support cable arrangement 194 relative to the axis of rotation 216 can be rotated by an electric motor 218 such that the peripheral speed and direction of rotation of the third limiting roller 216 is identical to the speed and direction of movement of the second carrier cable section 202 relative to the axis of rotation 216 of the third limiting roller 214. The third limiting roller 216 is arranged on the side facing away from the two cars 184, 186 side of the second support cable section 202.

On the underside of the first car 194, a fourth limiting roller 220 is rotatably mounted about an axis of rotation 222 laterally adjacent to the second supporting cable section 202, wherein the fourth limiting roller 220 can be rotated by an associated electric motor 224 in dependence on the relative speed and the direction of movement in the the second support cable section 202 has relative to the rotation axis 222 of the fourth restriction roller 20. The electric motor 224 is as well as the electric motor 218 via A control line (not shown in FIG. 4) is connected to the elevator control device 212.

In order to be able to compensate the weight of the first support cable arrangement 188, the first car 184 is also coupled to the first counterweight 190 via a first sub-cable arrangement 226. The sub-cable arrangement 226 is fixed to a first cable end 228 and to a second cable end 230 on the underside of the first counterweight 190 and guided over a first guide roller 232 and a second guide roller 234, which are rotatably mounted on an upper side of the first car 184. Here, a first sub-cable section 236 extends from the first guide roller 232 vertically down to a Seilumlenkeinrichtung 238, which is arranged in a pit 240 of the shaft 182, and a second Unterseilabschnitt 242 extending from the second guide roller 234 vertically down to to Seilumlenkeinrichtung 238.

The second car 186 disposed below the first car 184 is positioned between the first sub-cable section 236 and the second sub-cable section 242. In order to limit horizontal deflections of the first sub-cable section 236, a fifth limiting roller 250 is rotatably mounted about an axis of rotation 252 in the shaft 182 approximately vertically in the shaft 182, wherein the fifth limiting roller 250 is assigned a controllable rotary drive in the form of an electric motor 254. The electric motor 254 communicates with the elevator control device 212 via a control line not shown in FIG. 4 and rotates the fifth restricting roller 250 such that the peripheral speed and rotational direction of the fifth restricting roller 250 corresponds to the relative speed and direction of travel relative to the first sub-cable section 236 to the rotation axis 252 of the fifth limiting roller 250.

At the top of the second car 186, a sixth limiting roller 256 is rotatably mounted about a rotation axis 258. The sixth limiting roller 256 can be rotated by an electric motor 260 in such a way, - - that the peripheral speed and direction of rotation of the sixth limiting roller 256 corresponds to the relative speed and direction of movement, the first sub-cable section 236 relative to the axis of rotation 258 has.

In order to be able to limit horizontal deflections of the second lower cable section 242, a seventh limiting roller 262 is rotatably mounted about an axis of rotation 264 in the vertical direction approximately centrally in the shaft 182 on the side of the second lower cable section 242 facing away from the two cars 184, 186, by an electric motor 266 which is connected to the elevator control device 212 via a control line (not shown in FIG. 4), wherein the peripheral speed and the direction of rotation of the seventh limiting roller 262 correspond to the relative speed and direction of movement of the second sub-cable section 252 relative to the axis of rotation 264 of the seventh Boundary tube 262 has.

On the upper side of the second car 186, an eighth limiting roller 268 is rotatably mounted laterally next to the second lower cable section 242 about an axis of rotation 270 which can be rotated by an electric motor 272. The electric motor 272 communicates with the elevator control device 212 via a control line, not shown in FIG. 4, and allows rotational movement of the eighth restricting roller 268 such that the peripheral speed and rotational direction of the eighth restricting roller 268 is identical to the relative speed and direction of movement of the second sub-cable section 242 relative to the axis of rotation 270 of the eighth limiting roller 268 has.

By means of the limiting rollers 204, 206, 214 and 220 thus horizontal deflections of the two support cable sections 200, 202 can be limited, and by means of the limiting rollers 250, 256, 262 and 268 horizontal deflections of the two sub-cable sections 236, 242 can be limited. The limiting rollers are each driven to rotate in such a way that the circumferential speed and the direction of rotation of the limiting rollers corresponds to the relative speed and the direction of movement, which has the respective supporting cable or sub-cable section when the car is moving relative to the axis of rotation of the limiting roller. It is thereby ensured that the support cable and sub-rope sections roll on the circumference of the limiting rollers without damaging them or themselves.

Further, not shown in Figure 4 to achieve a better overview limiting rollers are rotatably mounted in the shaft 182 in the area below the first counterweight 190 and the second counterweight 196 to horizontal deflections extending in the vertical direction from the Seilumlenkeinrichtung 238 to the counterweights 190, Limiting 196 extending sub-ropes. In addition, limiting rollers may also be rotatably mounted in the shaft above the two counterweights 190, 196, with the aid of which horizontal deflections of the suspension cables extending in the vertical direction relative to the counterweights 190, 196 can be limited. Both the above and below the counterweights 190, 196 rotatably mounted in the shaft limiting rollers can each be rotated by a controllable electric motor in such a way that its direction of rotation and its peripheral speed of the direction of movement or the relative speed of the respective support or sub-cable corresponds contacted the respective limiting roller at a horizontal deflection.

Claims

PATENT CLAIMS

1. Elevator system with a shaft (12; 102; 182), in which at least one elevator car (30; 104, 106; 184, 186) can be moved up and down in the vertical direction and via a rope or belt arrangement (36; 108 , 116; 188, 194) is coupled to a counterweight (38; 110, 118; 190, 196), the rope or belt arrangement (36; 108, 116; 188, 194) having at least one rope or belt section (40, 42, 54, 58; 122, 124, 158; 200, 202; 236, 242), the horizontal deflection of which can be limited by at least one limiting member, characterized in that at least one limiting member acts as a limiting roller (70, 78, 86, 92, 93, 94, 95; 136, 138, 140, 148, 150, 152, 154, 156; 206, 214, 220, 250, 256, 262, 268), which is laterally next to a rope or belt section (40, 42, 54, 58; 122, 124, 158; 200, 202; 236, 242) is rotatably mounted about an axis of rotation (72, 80, 88; 208, 216, 222; 252, 258, 264, 270) and which of a controllable rotary drive (74, 82, 90; 142, 144, 146, 162, 164, 166, 168, 170; 210, 218, 224; 254, 260, 266, 272) depending on the speed and direction of movement of the side next to the limiting roller (70, 78, 86, 92, 93, 94, 95; 136, 138, 140, 148, 150, 152, 154, 156; 204, 206, 214, 220, 250, 256, 262, 268) arranged rope or belt section (40, 42, 54, 58; 122, 124, 158; 200, 202; 236, 242) relative to the Axis of rotation of the limiting roller (70, 78, 86, 92, 93, 94, 95; 136, 138, 140, 148, 150, 152, 154, 156; 204, 206, 214, 220, 250, 256, 262, 268) has, can be set in rotation.

2. Elevator system according to claim 1, characterized in that the

Circumferential speed of the at least one limiting roller (70, 78, 86, 92, 93, 94, 95; 136, 138, 140, 148, 150, 152, 154, 156; 204, 206, 214, 220, 250, 256, 262, 268) the speed of the rope or belt section (40, 42, 54) arranged laterally next to the limiting roller, 58; 122, 124, 158; 200, 202; 236, 242) relative to the axis of rotation (72, 80, 88; 208, 216, 222; 252, 258, 264, 270) of the limiting roller (70, 78, 86, 92, 93, 94, 95; 136, 138, 140 , 148, 150, 152, 154, 156; 204, 206, 214, 220, 250, 256, 262, 268).

3. Elevator system according to claim 1 or 2, characterized in that the rotary drive (74, 82, 90; 142, 144, 146, 162, 164, 166, 168, 170; 210, 218, 224; 254, 260, 266, 272) is coupled to an elevator control device (34; 114; 212), the rotary drive (74, 82, 90; 142, 144, 146, 162, 164, 166, 168, 170; 210, 218, 224; 254, 260 , 266, 272) from the elevator control device (34; 114; 212) on the speed and direction of movement of the side next to the limiting roller (70, 78, 86, 92, 93, 94, 95; 136, 138, 140, 148, 150, 152, 154, 156; 204, 206, 214, 220, 250, 256, 262, 268) arranged rope or belt section (40, 42, 54, 58; 122, 124, 158; 200, 202; 236, 242) relative to the axis of rotation (72, 80, 88; 208, 216, 222; 252, 258, 264, 270) of the limiting roller (70, 78, 86, 92, 93, 94, 95; 136, 138, 140, 148 , 150, 152, 154, 156; 204, 206, 214, 220, 250, 256, 262, 268) dependent control signal can be provided.

4. Elevator system according to one of the preceding claims, characterized

characterized in that at least one limiting roller (86, 92, 93, 94, 95; 140, 156; 204, 214; 250, 262) is rotatably mounted in a predetermined position in the shaft (12; 102; 182).

5. Elevator system according to one of the preceding claims, characterized

characterized in that at least one limiting roller (70, 78; 136, 138, 148, 150, 152, 154; 206, 220, 256, 268) is rotatably mounted on a car (30; 104, 106; 184, 186).

6. Elevator system according to one of the preceding claims, characterized

characterized in that at least one limiting roller (92, 93, 94, 95) can be rotated laterally next to a rope or belt section (54, 58; 158). is mounted, which extends in the vertical direction to a counterweight (38; 118).

Elevator system according to one of the preceding claims, characterized in that at least one car (30; 104, 106; 184, 186) is arranged between two rope or belt sections (40, 42; 122, 124; 200, 202; 236, 242). , with at least one limiting roller (70, 78; 136, 138, 148, 150, 152, 154; 206) next to each of the two rope or belt sections (40, 42; 122, 124; 200, 202; 236, 242), 220, 256, 268) is arranged.

Elevator system according to claim 7, characterized in that the elevator car (30; 106; 186) is suspended on the two rope or belt sections (40, 42; 122, 124; 200, 202).

Elevator system according to one of the preceding claims, characterized in that the elevator system (100; 120) has a first car (104; 184) and a second car (106; 186) arranged below the first car (104; 184), which are separate from one another can be moved up and down in the shaft (102; 182) in the vertical direction and are each coupled to a counterweight (110, 118; 190, 196) via at least one rope or belt arrangement (108, 116; 188, 194; 226). are, wherein at least one rope or belt arrangement (116, 194, 226) has two rope or belt sections (122, 124; 200, 202; 236, 242) which start from one of the two cars (106, 184, 186) extending in the shaft (102, 182) in a vertical direction along opposite sides of the other car (104, 184, 186) which is arranged between the two rope or belt sections, with laterally next to each of the rope or belt sections (122, 124; 200, 202; 236, 242) at least one limiting roller is rotatably mounted in the shaft and/or on the car arranged between the two rope or belt sections.

10. Elevator system according to claim 9, characterized in that at least two limiting rollers are rotatably mounted on both cars (104, 106; 184, 186), each of which is positioned next to a rope or belt section.

11. Elevator system according to claim 9 or 10, characterized in that the second car (106; 186) is suspended on two carrying cable or belt sections (122, 124; 200, 202), which extend from the second car (106; 186). extend upwards in the vertical direction and between which the first car (104; 184) is arranged, with at least one limiting roller (208, 220; 152, 154) being arranged next to each of the two carrying cable or carrying belt sections (124; 202). is rotatably mounted on the first car (104; 184).

12. Elevator system according to claim 9, 10 or 11, characterized in that the first elevator car (184) is coupled to a counterweight (190) via two lower cable or lower belt sections (236, 242), the lower cable or lower belt sections (236, 242) extend vertically downwards starting from the first car (184) and the second car (186) is arranged between the two lower rope or lower belt sections (236, 242), with at least one limiting roller next to each of the lower cable or lower belt sections (236, 242). (256, 268) is arranged, which is rotatably mounted on the second car (186).