Driving basket structure for double-deck elevator

Abstract

A traveling basket structure (2) for a double-deck elevator (1), comprising: a traveling basket frame (5) which is supported in a shaft (6) so as to be movable between a plurality of floors; two running baskets (3, 4) which are connected to the running basket frame (5) in such a way that the two running baskets can be moved together with the running basket frame (5), and which are arranged one above the other when the running basket frame (5) is mounted in the shaft (6) in such a way that the running basket frame (5) can be moved between floors, the distance (A) between the running baskets (3, 4) arranged one above the other can be adjusted by moving the running baskets (3, 4) relative to one another by means of an actuator (8); a damper (13) comprising a damper weight (16) and an elongated damper spring (15), the damper weight (16) being connected to a free end of the damper spring (15) and the damper spring (15) being connected at the other end thereof to the vibratable components (3, 4, 5, 8, 12, 22, 23) of the running basket frame (2), the damper weight (16) being connected to the free end of the damper spring (15) and the damper spring (15) being connected to the vibratable components (3, 4, 5, 8, 12, 22, 23) of the running basket frame (2), the damper weight (16) and the damper spring (15) cooperate with each other in such a way that, during operation of the actuator (8), the damper (13) is set to a desired vibration which resists undesired vibrations of the vibratable components (3, 4, 5, 8, 12, 22, 23).

Description

Technical Field

[0001] The invention relates to a travelling basket structure for a double-deck elevator, a method for tuning a shock absorber for a travelling basket structure for a double-deck elevator, and a control unit for carrying out such a method. Background Art

[0002] In addition to single-car elevators, so-called double-deck or double-top elevators are also available for transporting people and / or objects between floors of a building. The advantage of double-deck elevators lies primarily in the basket frame, in which two baskets or baskets are arranged one above the other. By moving the basket frame in which the baskets are arranged, the baskets can be moved together and thus stop at two floors arranged one above the other at the same time.

[0003] Since the floor heights in a building can vary, double-decker elevators are usually equipped with an adjustment mechanism, by means of which the vertical distance between the two travelling baskets can be adapted, for example automatically during the journey to the next stop.

[0004] The adjustment mechanism may include, for example, an electric spindle drive. When one or both of the travel baskets are adjusted vertically by such a drive, under certain circumstances, for example at a certain rotation speed of the drive, the entire travel basket structure or parts thereof, in particular the travel basket frame and / or the driven travel basket, may cause undesirable vibrations, which may manifest as vibrations and / or noise and may reduce the riding comfort.

[0005] EP 1 074 503 B1 shows an example of a double-deck elevator having two spindle drives for vertical adjustment of two baskets in a basket frame.

[0006] EP 3 176 121 B1 describes a traveling basket frame, which consists of a traveling basket and a traveling basket frame, and the traveling basket frame is connected to the traveling basket via a damper. The damper is used to dampen vibrations transmitted to the traveling basket frame via the guide rails and then transmitted from the traveling basket frame to the traveling basket during the operation of the elevator. For this purpose, the damper is fixed to the floor of the traveling basket with its first end and to the traveling basket frame with its second end. The two ends are connected to each other via a damping element, for example made of rubber. Summary of the invention

[0007] Therefore, there is a need for an improved travelling basket structure for a double-deck elevator, with which undesirable vibrations, for example in the form of vibrations and / or noise, can be reduced or limited during operation of the double-deck elevator, in particular during vertical adjustment of the two travelling baskets relative to each other.

[0008] Furthermore, a method is required which allows the vibration dampers of a chassis structure which dampens vibrations in this way to be automatically adapted to different operating conditions.

[0009] Furthermore, a corresponding control unit and a corresponding double-deck elevator are also required.

[0010] These needs are met by the subject matter of the independent claims. Advantageous embodiments are set forth in the dependent claims, the following description and the drawings.

[0011] A first aspect of the present invention relates to a traveling basket structure for a double-deck elevator. The traveling basket structure comprises: a traveling basket frame that can be supported in a shaft in a manner that allows movement between multiple floors; two traveling baskets that are connected to the traveling basket frame in such a way that the two traveling baskets can move together with the traveling basket frame and are arranged one above the other when the traveling basket frame is supported in the shaft in a manner that allows movement between floors, wherein the distance between the traveling baskets arranged one above the other can be adjusted by moving the traveling baskets relative to each other by means of an actuator; a shock absorber that comprises a shock absorbing weight and an elongated shock absorbing spring, wherein the shock absorbing weight is connected to the free end of the shock absorbing spring and the shock absorbing spring is connected at its other end to a vibration-prone part of the traveling basket frame, wherein the shock absorbing weight and the shock absorbing spring are coordinated with each other in such a way that the shock absorber generates a desired vibration during the operation of the actuator, and the desired vibration counteracts or resists an undesirable vibration of the vibration-prone part, i.e., weakens or eliminates the undesirable vibration.

[0012] In the operable state, the traveling basket frame may be supported in a manner that allows movement between floors in a vertical direction.

[0013] The traveling basket frame can be understood as a frame-type frame composed of multiple carriers and / or carrier structures. For example, in an operational state, the traveling basket frame can be guided along at least one guide rail anchored in the shaft by guide shoes and / or guide rollers.

[0014] In the simplest case, the basket frame can consist of two (horizontal) transverse supports and two (vertical) longitudinal supports, which are connected to form a frame via transverse supports. The basket frame can also have three (horizontal) transverse supports. The baskets can be arranged one above the other in this frame. For example, each longitudinal support can be guided on a guide rail.

[0015] As mentioned at the outset, by moving the basket frame along one or more guide rails, two baskets can be moved together in the shaft and thus parked simultaneously at two floors (directly) one above the other. By means of actuators, for example in the form of one or more spindle drives, chain drives or rack drives, the vertical distance between the baskets can be adapted to the vertical distance between the two floors (directly) one above the other on which the baskets are to park simultaneously.

[0016] It is feasible that only one of the traveling baskets can be moved relative to the traveling basket frame by means of an actuator, while the other traveling basket is fixedly connected to the traveling basket frame. Alternatively, two traveling baskets can also be moved relative to the traveling basket frame by means of an actuator or a plurality of actuators.

[0017] The actuator can, for example, include an electric drive motor and a transmission that connects the drive shaft of the drive motor to a spindle. The spindle can be rotatably supported in a spindle nut, wherein the spindle nut can be fixed in a suitable manner to one of the traveling baskets arranged one above the other, for example to the lower traveling basket. By rotating the spindle, the position of the spindle nut with respect to the longitudinal direction of the spindle changes depending on the direction of rotation. This also changes the distance between the traveling baskets arranged one above the other. The actuator can also include a brake system, in particular a redundant brake system by means of a spring force brake.

[0018] The term "vibration damper" can be understood as a pendulum-shaped vibration damper that is clamped on one side. In this case, the vibration-damping weight and the vibration-damping spring form a weight-spring system with a certain natural frequency, which is coordinated with the resonant frequency of the vibration-prone component to which the weight-spring system is fixed in such a way that undesired vibrations of the vibration-prone component are offset or weakened by the (desired) vibrations of the weight-spring system according to its natural frequency. The term "spring" can cover various types of elastically deformable bodies. In particular, the vibration-damping spring can be made of at least one elastically deformable material, such as spring steel or various metallic and / or non-metallic elastically deformable materials, and / or be designed to have a geometric shape that facilitates elastic deformation of the vibration-damping spring. For example, the vibration-damping spring can also be designed as a helical spring or a torsion spring.

[0019] The structure of these vibration dampers is very simple, especially if they are designed as passive dampers, and can therefore be easily assembled or disassembled. In addition, they are very robust and require almost no maintenance, compared to rubber dampers.

[0020] The vibration damper can have a fixed natural frequency or multiple fixed natural frequencies. It is also possible to implement the vibration damper in such a way that its natural frequency can be changed, for example by means of a separate adjustment motor designed to change the position of the damping weight relative to the damping spring (see also below).

[0021] In order to achieve the greatest possible damping effect, the shock absorber should be placed as close to the center of gravity of the vibrating component as possible.

[0022] The shock absorber can be assembled, for example, by means of suspension, vertical placement or horizontal placement.

[0023] The connected end of the shock absorber, or more precisely of the shock absorbing spring, can also be connected simultaneously to a plurality of vibration-prone parts of the chassis structure.

[0024] The traveling basket structure may also include two or more, for example, four, six or eight shock absorbers, which may be connected to the same vibration-prone component and / or different vibration-prone components.

[0025] It is possible that the damping springs of different dampers extend from the vibration-prone part in different, for example opposite directions. Thus, for example, one damping spring can extend upwards so that the corresponding damping weight stands on the damping spring, while another damping spring can extend downwards so that the corresponding damping weight is suspended on the damping spring. Alternatively, the damping springs can extend in different horizontal directions accordingly.

[0026] A second aspect of the invention relates to a method, preferably implemented by a computer, for tuning a shock absorber of a traveling basket structure of a double-deck elevator. The traveling basket structure may be a traveling basket structure according to the embodiment described above and below of the first aspect of the invention, wherein the shock absorbing weight is movable between different longitudinal positions in the longitudinal direction of the shock absorbing spring, and the shock absorber further comprises an adjustment motor for adjusting the shock absorbing weight between the longitudinal positions. The method comprises: receiving vibration data indicating a current frequency of an undesirable vibration; determining a selected longitudinal position from the longitudinal positions between which the shock absorbing weight is movable in the longitudinal direction of the shock absorbing spring, wherein when the shock absorbing weight is in the selected longitudinal position, the shock absorber has a natural frequency coordinated with the current frequency; generating a control command for actuating the adjustment motor so that the shock absorbing weight is adjusted to the selected longitudinal position.

[0027] The method enables the natural frequency of the shock absorber to be automatically adapted to different environmental conditions, thereby making it possible to dampen undesirable vibrations under different environmental conditions.

[0028] The vibration data may be generated using appropriate sensors, for example using inertial sensors to measure the acceleration and / or rotation rate of the vibration-prone component about one or more (preferably three) spatial axes.

[0029] In the memory of the control unit a computer program may be stored, the computer program comprising instructions which, when executed by the processor, cause the processor of the control unit to carry out the method introduced above and below.

[0030] For example, a lookup table can also be stored in the memory of the control unit, which corresponds different longitudinal positions of the vibration-damping weight to different resonant frequency ranges of the vibration-prone component. In this case, each longitudinal position can correspond to a certain natural frequency range of the vibration absorber, which natural frequency range is coordinated in a suitable manner with the corresponding resonant frequency range, so that undesirable vibrations of the vibration-prone component can be damped or even completely eliminated by corresponding counter-vibrations of the vibration absorber. For example, the natural frequency range and the resonant frequency range can at least partially include the same frequencies.

[0031] Features of the method introduced above and below may also be features of the control unit (or vice versa).

[0032] A third aspect of the invention relates to a control unit having a processor, which is configured to perform a method for contextual introduction. The control unit may include a hardware module and / or a software module. In addition to the processor, the control unit may also include a memory and a data communication interface for wireless and / or wired data communication with peripheral devices. For example, the control unit may be a hardware component and / or a software component of an elevator controller at a higher level. Alternatively, the control unit may be a hardware component of a traveling basket structure. If the double-decker elevator includes a plurality of traveling basket structures, each traveling basket structure may, for example, include such a control unit as a separate hardware component.

[0033] A fourth aspect of the present invention relates to a double-deck elevator, which comprises: a shaft; and a traveling basket structure as described above and below, wherein a traveling basket frame is supported in the shaft in a manner that allows movement between a plurality of floors.

[0034] The embodiments of the present invention may be considered to be based on the concepts and knowledge described below, but not to limit the present invention.

[0035] According to one embodiment, the vibration-prone component can be the first traveling basket. During operation of the actuator, undesirable vibrations of the actuator and / or the traveling basket frame can be transmitted to one of the traveling baskets, in particular to the traveling basket driven by the actuator. By mechanically coupling the shock absorber to the relevant traveling basket, these vibrations can be very effectively damped. As a result, disturbing vibrations and / or noises of the traveling basket are avoided, thereby improving the riding comfort.

[0036] According to one embodiment, the damping spring can be connected to the bottom structure of the first traveling basket at its other end. As a result, the damper can be placed as close as possible to the center of gravity of the first traveling basket. This can improve the damping effect compared to a design in which the damper is placed at a location far from the center of gravity (e.g., on the ceiling structure or side wall of the first traveling basket). The bottom structure can be a load-bearing structure. Thus, the bottom structure can bear most of the weight of the first traveling basket (e.g., the car of the first traveling basket can be placed on the bottom structure).

[0037] According to one embodiment, the first traveling basket can be the lower traveling basket of the traveling baskets arranged one above the other and / or can be mechanically coupled to an actuator, i.e. can be moved relative to the traveling basket frame by means of the actuator. In practical tests with a traveling basket structure in which the lower traveling basket is a traveling basket driven by an actuator, it was shown that this embodiment achieves particularly effective vibration reduction. For example, the first traveling basket and / or the lower traveling basket can be mechanically coupled to the actuator via their bottom structure.

[0038] According to one embodiment, the vibration-prone component can be the traveling basket frame or the actuator. In certain cases, for example for reasons of space, it may be reasonable to fasten the shock absorber to a component other than the traveling basket. The traveling basket frame or the actuator are particularly suitable for this purpose, since a large part of the undesired vibrations are usually transmitted from these components to other components of the traveling basket structure. For example, the actuator can be fastened to the traveling basket frame and vibrate at an excitation frequency depending on its speed, so that the excitation frequency causes the traveling basket frame (and possibly also one or each of the traveling baskets connected thereto) to vibrate in an undesired manner. This can be avoided by fastening the shock absorber to the actuator itself or to the traveling basket frame.

[0039] It is also conceivable that at least one first shock absorber is fastened to one or each chassis, at least one second shock absorber is fastened to the chassis frame, and at least one third shock absorber is fastened to the actuator.

[0040] According to one embodiment, the vibration-prone component can be a longitudinal carrier of the basket frame. In this case, the damping spring can be fastened at its other end to the longitudinal carrier directly or indirectly, for example via a carrier extending from the longitudinal carrier. The longitudinal carrier can, for example, have one or more basket guides for guiding one or both baskets when they are moved by means of an actuator.

[0041] It is also conceivable that the basket frame comprises a guide segment for guiding the basket frame during the (vertical) movement between floors along at least one guide rail anchored in the shaft. In this case, the damping spring can be connected to the guide segment at its other end. The guide segment can be formed, for example, by one or more, preferably two vertical longitudinal carriers, which can be connected to the guide rail (or rails) in the operating state of the basket structure, for example by guide shoes and / or rollers. When the basket frame moves in the shaft, undesirable vibrations can also be transmitted from the guide rail (or rails) via the guide segment to the basket frame and from the basket frame to one or each basket. If the shock absorber is mounted on the guide segment itself, these additional vibrations can be effectively prevented from being transmitted via the basket frame.

[0042] According to one embodiment, the damping weight can be moved between different longitudinal positions in the longitudinal direction of the damping spring. In this case, the shock absorber can also include an adjustment motor for adjusting the damping weight between the longitudinal positions. In other words, the adjustment motor can be designed to move the damping weight and the damping spring relative to each other in the longitudinal direction of the damping spring. The adjustment motor can be electrically controlled by a control unit of the double-deck elevator. For example, the adjustment motor can be designed as an electric, hydraulic or pneumatic drive, or a combination of at least two of these. This makes it possible to easily and automatically adapt the natural frequency of the shock absorber to changes in the frequency of undesired vibrations, for example when the rotational speed of the actuator that moves the traveling basket changes.

[0043] According to one embodiment, the damping spring may include a tubular segment. Here, the free end and the other end of the damping spring may be the ends of the tubular segment. In the simplest case, the damping spring may be formed by a single tube.

[0044] According to one embodiment, the vibration-damping weight can be formed by a profile, for example in the form of a tube, with an opening for the vibration-damping spring to pass through. The inner contour of the opening can be adapted to the outer contour of the vibration-damping spring, so that the profile and the vibration-damping spring can be moved relative to each other in the longitudinal direction of the vibration-damping spring with sufficient accuracy. This enables the longitudinal position of the vibration-damping weight to be easily and precisely adapted (see above).

[0045] The body can be cylindrical or disc-shaped and / or designed as a single piece or multiple pieces. For example, the body can be stacked from a plurality of discs with a central opening. By adding or removing individual discs, the weight of the vibration-damping weight can be easily adapted. In addition, such a rotationally symmetrical design of the body allows the vibration absorber to behave identically or similarly when vibrating in different vibration directions.

[0046] According to one embodiment, if the basket frame is supported in the shaft in a manner that it can be moved between floors, the free end of the damping spring can protrude vertically or horizontally from the vibration-prone part.

[0047] In other words, the free end can project downwards or upwards, for example from a base structure of one of the travel baskets, so that in the first case (projecting downwards) the damping weight is suspended on the damping weight spring, and in the second case (projecting upwards) the damping weight stands on the damping weight spring. The damping spring thus has a substantially vertical longitudinal direction.

[0048] Alternatively, the free end may project to the left or to the right, for example towards or away from the centre of the substructure. Thus, the damping spring has a substantially horizontal longitudinal direction.

[0049] According to one embodiment, the traveling basket structure may further include: another shock absorber, which includes a shock-absorbing weight and an elongated shock-absorbing spring, wherein the shock-absorbing weight is connected to the free end of the shock-absorbing spring, and the shock-absorbing spring is connected to the vibration-prone component of the traveling basket structure at its other end, wherein the shock-absorbing weight and the shock-absorbing spring are coordinated with each other in such a way that the other shock absorber generates a desired vibration during operation of the actuator, and the desired vibration counteracts the undesirable vibration of the vibration-prone component, i.e., weakens or eliminates the undesirable vibration.

[0050] The vibration damper and the further vibration damper may preferably be of identical design.

[0051] The running basket structure may also include two or more other shock absorbers.

[0052] This makes it possible to place multiple shock absorbers at multiple suitable locations in the chassis structure, which can further improve the vibration damping effect.

[0053] According to one embodiment, the vibration absorber and the further vibration absorber (or a plurality of further vibration absorbers) may be fixed at different locations on the same vibration-prone component.

[0054] For example, different vibration absorbers can be evenly distributed around the center of gravity of the same vibration-prone component.

[0055] Alternatively, different shock absorbers can be connected to different vibration-prone parts of the chassis structure.

[0056] For example, different damping springs can be located in the same horizontal or vertical plane. Additionally or alternatively, the longitudinal axes of the damping springs can be arranged parallel to each other. The longitudinal axes of the damping springs can also be arranged collinearly.

[0057] Furthermore, as described above, different damping springs may extend from a respective component (or respective components) in opposite directions.

[0058] Thereby, the vibration damping effect can be further improved.

[0059] According to one embodiment, the double-deck elevator can also include a control unit as described above and a device for determining the current frequency of undesired vibrations of the vibration-prone parts of the traveling basket structure. This enables the vibration dampers of the traveling basket structure to automatically adapt to different environmental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The embodiments of the present invention will be described below with reference to the accompanying drawings. Neither the description nor the drawings should be construed as limiting the present invention.

[0061] Figure 1 A double-deck elevator according to an embodiment of the present invention is shown.

[0062] Figure 2 A side view showing a traveling basket frame of a traveling basket structure according to an embodiment of the present invention.

[0063] The figures are purely schematic and not drawn to scale. The same reference numerals in different figures denote the same or equivalent features. DETAILED DESCRIPTION

[0064] Figure 1 Components of a double-decker elevator 1 are shown. The double-decker elevator 1 comprises a basket arrangement 2, which consists of a first basket 3, a second basket 4 and a basket frame 5, and is supported in a shaft 6 so as to be movable in the direction of a vertical axis z between a plurality of floors of a building.

[0065] Vertically extending guide rails 7 are anchored in the shaft 6 , which guide the basket frame 5 on one side or, as here, on both sides in the z direction.

[0066] The traveling baskets 3 , 4 are arranged one above the other in a traveling basket frame 5 and are spaced apart from one another by a vertical distance A. In this example, the first traveling basket 3 is the lower traveling basket of the two traveling baskets 3 , 4 .

[0067] By moving the basket frame 5 along the guide rails 7 in the shaft 6 , the two baskets 3 , 4 can be moved together and thus parked simultaneously on two adjacent floors, ie directly above each other.

[0068] The heights of floors in a building may vary. For example, the vertical distance between two adjacent floors may decrease as the building height increases, which is the case in high-rise buildings in particular. Therefore, the vertical distance A between the two traveling baskets 3, 4 should be able to be adapted accordingly.

[0069] For this purpose, in this example, the lower first traveling basket 3 is mounted displaceably in the z direction on a traveling basket frame 5 . In contrast, the second traveling basket 4 is fixedly connected to the traveling basket frame 5 .

[0070] The vertical adjustment of the first traveling basket 3 can be realized, for example, by means of two (structurally identical) spindle drives 8 as actuators, each of which has a spindle 9 and a drive unit 10 for driving, i.e. rotating the spindle 9 with a motor. Each drive unit 10 can, for example, include an electric drive motor, a transmission device that connects the drive motor to the corresponding spindle 9, and a spring brake. A spindle nut 11 is provided on each spindle 9, which is connected to a supporting substructure 12 of the first traveling basket 3. By rotating the spindle 9, the spindle nut 11 is moved in the longitudinal direction of the spindle 9, i.e. in the z-direction, whereby the first traveling basket 3 is lowered or raised depending on the direction of rotation, i.e. the distance A is increased or decreased. In this case, certain vibration-prone parts of the traveling basket structure 2, in particular the driven lower traveling basket 3, can generate undesirable vibrations, which can manifest as disturbing vibrations and / or disturbing noises.

[0071] In order to eliminate or weaken these undesirable vibrations, the running basket structure 2 in this example further includes a first shock absorber 13 and a second shock absorber 14, which are fixed to the bottom structure 12 in a downwardly suspended manner (similar to a pendulum). Here, the first shock absorber 13 is mounted on the bottom structure 12 at the left front, and the second shock absorber 14 is mounted on the bottom structure 12 at the right rear. Therefore, the two shock absorbers 13 and 14 are opposite to each other along the diagonal line and are evenly distributed around the center of gravity of the running basket 3 below, which is conducive to improving the vibration damping effect.

[0072] The shock absorbers 13, 14 can also be fastened to the base structure 12 or other vibration-prone components, for example to the chassis frame 5 (see Figure 2 ).

[0073] The traveling basket frame 2 may also include only one shock absorber or more than two shock absorbers, for example at least four, at least six or at least eight shock absorbers.

[0074] Each damper 13, 14 is formed by an elongated damping spring 15 (e.g. a simple tube) with defined stiffness and a damping weight 16 with defined weight. The damping weight 16 is located at the free end of the damping spring 15, while the other end of the damping spring 15 is fixed to the base structure 12, for example by screwing or welding.

[0075] The vibration-damping weight 16 can in particular be formed by a single cylinder or by a plurality of cylinders.

[0076] Each vibration damper 13, 14 is coordinated in such a way, more precisely, the vibration damping spring 15 and the vibration damping weight 16 of each vibration damper 13, 14 are coordinated in such a way that the vibration damper vibrates at a certain natural frequency or a natural frequency within a certain frequency range when the spindle drive 8 is in operation, that is, when the electric motor of the drive unit 10 rotates the spindle 9 at a certain speed. These desired vibrations of the vibration dampers 13, 14 interact with the undesired vibrations so that the undesired vibrations are significantly damped, at least to such an extent that disturbing vibrations and / or disturbing noises are no longer perceptible.

[0077] For tuning the vibration dampers 13 , 14 , the respective damping weights 16 can be mounted, for example, in different longitudinal positions in the longitudinal direction (here in the z direction) of the respective damping spring 15 .

[0078] It is particularly advantageous if the damping weight 16 is mounted on the damping spring 15 in such a way that it can be moved between longitudinal positions. In this case, the damping weight 16 can be adjusted, for example, by means of an electric adjustment motor 17 (see Figure 2 ) is adjusted between longitudinal positions. This enables automatic tuning of the shock absorbers 13, 14.

[0079] For this purpose, the current frequency or additionally other critical properties of the undesired vibrations, such as their amplitude, can be determined by means of a suitable vibration sensor 18 , for example an inertial sensor arranged on the floor structure 12 or directly on the first travel basket 3 .

[0080] The vibration data 19 generated here are received by a control unit 20, which evaluates the vibration data 19 to determine the appropriate longitudinal position of each damping weight 16 and generates a corresponding control command 21 for each adjustment motor 17, which causes the adjustment motor to adjust the corresponding damping weight 16 into the corresponding longitudinal position. The vibration dampers 13, 14 then generate the desired vibrations, which counteract the undesired vibrations according to the current frequency.

[0081] Figure 2 An alternative arrangement of the shock absorbers 13 , 14 on the traveling basket frame 5 , more precisely on a lateral guide section 22 of the traveling basket frame 5 , which guide section is formed here by two parallel longitudinal supports 23 of the traveling basket frame 5 .

[0082] It is possible that the first traveling basket 3 is supported displaceably in the z direction on one or both of the longitudinal carriers 23 via one or more traveling basket guides (not shown). Figure 1 As shown), the travel basket frame 5 can have such a guide segment 22 on each of the two opposite sides.

[0083] One of the shock absorbers 13, 14 is fixed to each longitudinal carrier 23 via its respective shock absorber spring 15. In this example, the first shock absorber 13 is mounted in suspension, while the second shock absorber 14 is mounted in a standing position.

[0084] Each damper 13, 14 is fastened via its respective damping spring 15 to one of two arms 24, which each extend from one of the longitudinal supports 23 and are fastened to the respective longitudinal support 23 via fastening means 25. The fastening means 25 can be formed, for example, by screwing and / or welding.

[0085] The cantilever 24 of the second vibration damper 14 also comprises a support device 26 (see also Figure 1 ), the bearing device is rotatably supported on the upper end of the main shaft 9. As here, the second vibration damper 14 and the main shaft 9 can be arranged on opposite sides of the cantilever 24.

[0086] When viewed in the z-direction, the cantilevers 24 may be arranged substantially at the same height. However, the cantilevers 24 may also have different positions in the z-direction.

[0087] Additionally or alternatively, at least one vibration damper 13 , 14 can be fastened to at least one spindle drive 18 , for example to the drive unit 10 .

[0088] Finally, it should be noted that the terms "having", "comprising", "including", "with" etc. do not exclude other elements or steps, and that the indefinite article "a" or "an" etc. does not exclude a plurality. It should also be noted that features or steps described with reference to one of the above embodiments may also be used in combination with features or steps described with reference to other above embodiments. Reference signs in the claims should not be understood as limitations.

Claims

1. A traveling basket structure for a double-deck elevator (1), wherein: The traveling basket structure (2) comprises: A traveling basket frame (5) is supported in a shaft (6) in a manner that allows movement between multiple floors; Two traveling baskets (3, 4) are connected to a traveling basket frame (5) so that the two traveling baskets can be moved together with the traveling basket frame (5) and are arranged one above the other when the traveling basket frame (5) is supported in a shaft (6) so as to be movable between floors, wherein the distance (A) between the traveling baskets (3, 4) arranged one above the other can be adjusted by moving the traveling baskets (3, 4) relative to each other by means of an actuator (8); A shock absorber (13) comprising a damping weight (16) and an elongated damping spring (15), wherein the damping weight (16) is connected to the free end of the damping spring (15), and the damping spring (15) is connected at its other end to a vibration-prone component (3, 4, 5, 8, 12, 22, 23) of a travel basket structure (2), wherein the damping weight (16) and the damping spring (15) are coordinated with each other in such a way that the shock absorber (13) generates a desired vibration during operation of the actuator (8), and the desired vibration counteracts an undesired vibration of the vibration-prone component (3, 4, 5, 8, 12, 22, 23).

2. The traveling basket structure according to claim 1, in, The easy-to-vibrate component (3, 4, 5, 8, 12, 22, 23) is a first traveling basket (3) among the traveling baskets (3, 4).

3. The traveling basket structure according to claim 2, in, The damping spring (15) is connected at its other end to the base structure (12) of the first traveling basket (3).

4. The traveling basket structure according to claim 2 or 3, in, The first traveling basket (3) is the lower traveling basket (3) among the traveling baskets (3, 4) arranged one above the other and / or is mechanically coupled to the actuator (8).

5. The traveling basket structure according to claim 1, in, The easily vibrating component (3, 4, 5, 8, 12, 22, 23) is the traveling basket frame (5) or the actuator (8).

6. The traveling basket structure according to claim 5, in, The vibration-prone components (3, 4, 5, 8, 12, 22, 23) are longitudinal carriers (23) of the traveling basket frame (5).

7. A driving basket structure according to any one of the preceding claims, in, The vibration-damping weight (16) is movable between different longitudinal positions along the longitudinal direction (z) of the vibration-damping spring (15); The vibration damper (13) further comprises an adjustment motor (17) for adjusting the vibration damping weight (16) between longitudinal positions.

8. A travelling basket structure according to any one of the preceding claims, in, The damping spring (15) comprises a tubular segment (15), wherein the free end and the other end of the damping spring (15) are ends of the tubular segment (15); and / or The damping weight (16) is formed by a profile (16) having an opening for the damping spring (15) to pass through.

9. A travelling basket structure according to any one of the preceding claims, in, When the traveling basket frame (5) is supported in the shaft (6) in a manner that it can move between floors, the free end of the damping spring (15) extends vertically or horizontally from the vibration-prone component (3, 4, 5, 8, 12, 22, 23).

10. The traveling basket structure according to any one of the preceding claims, further comprising: Another shock absorber (14), comprising a damping weight (16) and an elongated damping spring (15), wherein the damping weight (16) is connected to the free end of the damping spring (15), and the damping spring (15) is connected at its other end to a vibration-prone component (3, 4, 5, 8, 12, 22, 23) of the travel basket structure (2), and the damping weight (16) and the damping spring (15) are coordinated with each other in such a way that the other shock absorber (14) generates a desired vibration during operation of the actuator (8), and the desired vibration counteracts an undesired vibration of the vibration-prone component (3, 4, 5, 8, 12, 22, 23).

11. The traveling basket structure according to claim 10, in, The vibration absorber (13) and the other vibration absorber (14) are fixed on different positions of the same easily vibrating component (3, 4, 5, 8, 12, 22, 23).

12. A method for tuning a vibration damper (13, 14) of a traveling basket structure (2) for a double-deck elevator (1), wherein: The traveling basket structure (2) is a traveling basket structure (2) according to claim 7, and the method comprises: receiving vibration data (19) indicating a current frequency of the undesirable vibration; Using the vibration data (19), a selected longitudinal position is determined from different longitudinal positions between which the damping weight (16) is movable in the longitudinal direction (z) of the damping spring (15), wherein when the damping weight (16) is in the selected longitudinal position, the vibration damper (13, 14) has a natural frequency that is coordinated with the current frequency; A control command (21) is generated for actuating the adjustment motor (17) so that the vibration-damping weight (16) is adjusted to the selected longitudinal position.

13. A control unit comprising a processor configured to execute the method according to claim 12.

14. A double-deck elevator, comprising: Shaft (6); The traveling basket structure (2) according to any one of claims 1 to 11, wherein the traveling basket frame (5) is supported in a shaft (6) in a manner that allows movement between a plurality of floors.

15. The double-deck elevator according to claim 14, further comprising: The control unit (20) according to claim 13; Means (18) for determining the current frequency of the undesired vibration.

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