HK40096889A - Drive system for an elevator installation, elevator installation, and method for installing a drive on a support element of an elevator installation - Google Patents

Abstract

The invention relates to a drive system (1) for an elevator installation, comprising: a drive (3); and a drive suspension means (7) for fastening the drive (3) to a support element (5) of the elevator installation. The drive suspension means (7) comprises: a rotary joint (9) for tiltably mounting the drive (3) on the support element (5); and an adjusting device (11) for setting a tilt of the drive (3) about the rotary joint (9).

Description

A drive system for elevator equipment, elevator equipment, and a method for mounting the drive system onto a support element of the elevator equipment.

Technical Field

The present invention relates to a drive system for an elevator device, an elevator device, and a method for mounting a drive unit on a support element of the elevator device.

Background Technology

Known elevator equipment for transporting people or goods includes an elevator car that can move vertically within an elevator shaft. Typically, the elevator car is connected to a counterweight via a hoist. The drive system for moving the elevator car along guide rails can be located, for example, on a drive structure at the head of the elevator shaft or in a machine room above the elevator shaft. However, drive systems known to date for elevator equipment require significant space, such as at the head of the elevator shaft, or involve expensive assembly.

Summary of the Invention

The object of this invention is to provide a drive system for elevator equipment, and more particularly, an elevator device that improves upon drive systems or elevator equipment known in the prior art, wherein the space requirements of the drive system should be reduced or the assembly of the drive system should be simplified. Furthermore, the object of this invention is to provide a method for assembling a drive unit for elevator equipment.

This objective is achieved by the drive system according to claim 1 and the method according to the parallel claims. Advantageous improvements and embodiments are derived from the dependent claims and the specification.

One aspect of the invention relates to a drive system for an elevator device, comprising a drive unit and a drive unit suspension for securing the drive unit to a support element of the elevator device, wherein the drive unit suspension includes a pivot hinge through which the drive unit is secured to the support element and the pivot hinge is configured to rotatably support the drive unit on the support element, and the drive unit includes an adjustment device for adjusting the rotation of the drive unit about the pivot hinge.

Another aspect of the invention relates to an elevator device having a drive system according to one of the embodiments described herein, an elevator car, and a counterweight connected to the elevator car via a hoist, wherein a drive unit is configured to drive the hoist.

Another aspect of the invention relates to a method for mounting a drive on a support element of an elevator device, wherein the drive is supported on the support element by means of a rotating hinge, the drive is stabilized relative to the support element, and the rotation of the drive about the rotating hinge is adjusted.

In a preferred embodiment, the drive includes a motor, particularly a motor and a transmission element. The drive can be configured without transmission. The drive has a drive shaft. The drive shaft is rotatable about the axis of the drive. A drive wheel of the drive can be fixed on the drive shaft. The drive wheel is configured to provide contact between the hoisting device and the drive of the elevator equipment. In particular, the drive wheel is configured to transmit the force provided by the drive to the hoisting device. Preferably, the drive suspension is configured such that, for a drive fixed to a support element, the drive wheel is positioned between the motor of the drive and the support element.

Preferably, the drive system is configured such that, in its assembled state, it includes a substantially horizontally extending shaft or axis having a drive wheel constructed therein.

Preferably, the rotating hinge is positioned above the substantially horizontally extending axis, and the adjusting device is positioned below the axis.

Preferably, the drive system includes guide rails for guiding the elevator car, wherein the guide rails form a support element. In another preferred embodiment, the support element may be the shaft wall of the elevator equipment or a load-bearing structure in the shaft of the elevator equipment.

In a preferred embodiment, the rotating hinge of the actuator suspension can be understood as a rotatable connection between the actuator and the support element. Preferably, the axis of rotation of the rotating hinge is at least substantially perpendicular to the axis of the actuator. "At least substantially perpendicular" is understood here specifically as a vertical orientation or an orientation deviating from a vertical orientation by a maximum of 15°, for example, a maximum deviation of 10° or 5°. In an embodiment, the axis of rotation may be at least substantially perpendicular to the axis of the actuator and oriented perpendicular to the longitudinal axis of the guide rail. The axis of the actuator may be at least substantially perpendicular to the axis of rotation of the rotating hinge and at least substantially perpendicular to the vertical direction, for example, perpendicular to the longitudinal axis of the guide rail. In a preferred embodiment, the axis of the actuator is oriented towards the guide rail.

Preferably, the adjustment device is arranged below the rotating hinge. The rotating hinge is particularly designed to transfer tensile loads from the actuator to the support element. The adjustment device, for example, is configured to transfer compressive loads from the actuator to the support element. In one embodiment, the rotating hinge is positioned above the drive wheel of the actuator, while the adjustment device is positioned below the drive wheel. In particular, the drive wheel is positioned between the rotating hinge and the adjustment device. In another embodiment, the adjustment device is arranged around the drive wheel. For example, the adjustment device may extend in a cage-like manner around the drive wheel toward the support element, wherein the adjustment device has at least one window for guiding the lifting device through. In a preferred embodiment, the drive wheel has a maximum drive wheel diameter of 150 mm, particularly a maximum of 100 mm, or a maximum of 70 mm.

In a preferred embodiment, the rotating hinge of the actuator suspension includes a fixed component and a first suspension component. The fixed component is configured to be fixed to a support element, and the first suspension component is fixed to the actuator. The fixed component and the first suspension component are rotatably connected to each other about a rotation axis. Preferably, the fixed component is rigidly connected to the support element, and the first suspension component is rigidly connected to the actuator. The rigid connection can be provided by an engagement method, such as by bolting.

The fixing component is preferably configured to have at least one arcuate edge, wherein the arcuate edge extends directly above the drive wheel in the assembled state.

The advantage of the curved edge is that the forces acting on it (due to the weight of the drive unit and the car, which is suspended from the drive wheels by the spreader in the assembled state) are thus evenly distributed along the edge. Therefore, compared to the less advantageous obvious right-angle structure, force concentration at the intersection of edges extending at right angles to each other can be prevented. Furthermore, by arranging the curved edge directly above the drive wheels, an arc-shaped overpressure can be formed, extending arcuately from one radial end of the drive wheel towards the other. Therefore, the distance between the curved edge and the traction surface of the drive wheel increases at least initially from one radial end to the other. Thus, the curved edge constitutes the lateral boundary, which begins directly above the traction surface at the radial end of the drive wheel. Therefore, lateral runaway of the spreader is prevented by the edge. Therefore, spreader impact can be prevented without the need for an additional edge on the drive wheels for this purpose.

The fixing component and the support element are preferably designed such that the fixing component can be partially pushed into the support element and can be fixed to the support element in the final position of the pushed-in state.

Therefore, the drive unit and drive suspension can be supplied as pre-assembled drive-drive suspension units and easily pushed into the openings provided in the support elements on-site and secured in the final pushed-in position. The relatively expensive assembly of the drive-drive suspension unit can be separated from the on-site assembly. In particular, the relatively expensive swivel hinges do not need to be assembled on-site. Thus, the ability to finely adjust the orientation of the drive wheels is combined with the simple on-site installation of the drive unit (and drive suspension).

In a preferred embodiment, the first suspension component has at least one first opening and the fixing component has at least one second opening. The rotary hinge includes a connecting element guided through the at least one first opening and the at least one second opening. The connecting element may be, for example, a pin, a stud, or a screw. In particular, the connecting element is arranged along the rotation axis of the rotary hinge.

In a preferred embodiment, the rotating shaft is positioned precisely above the center of the drive wheel, thereby generating automatic orientation of the drive wheel while ignoring the weight of the drive unit.

In a preferred embodiment, the rotating hinge is implemented as a hinge. In this embodiment, the first suspension member has at least one first opening along the rotation axis of the rotating hinge. The fixing member has at least two second openings along the rotation axis of the rotating hinge. The first suspension member extends between the at least two second openings of the fixing member, wherein at least one first opening of the first suspension member is disposed between the two second openings of the fixing member.

In a preferred embodiment, the rotary hinge is configured to support torque or a torque component in a direction perpendicular to the rotation axis. Specifically, the rotary hinge is configured to support torque or a torque component in the direction of the drive axis or in the direction of the longitudinal axis of the guide rail. The fixed member and the first suspension member can contact each other along the rotation axis via at least two contact surfaces, wherein the contact surfaces extend around the rotation axis, particularly around and perpendicular to the rotation axis. In particular, the fixed member and the first suspension member can form a torque support. For example, the rotary hinge is capable of at least partially supporting the torque or torque component generated by the drive hoist or the movement of the elevator car or counterweight.

Preferably, the adjustment device for the drive suspension includes a fixing member and a second suspension member. The fixing member is configured to be fixed to a support element, and the second suspension member is fixed to the drive and connected to the fixing member. The fixing member and the second suspension member are adjustable relative to each other. The adjustment device can be implemented, in particular, as a linear adjustment device. The adjustment device may include an adjusting screw, wherein the adjustment device is configured to displace the fixing member and the second suspension member relative to each other, especially linearly, by rotating the adjusting screw. Preferably, the second suspension member is rigidly connected to the drive, and the fixing member is rigidly connected to the support element.

In a preferred embodiment, the flipping of the actuator about the pivot hinge can be adjusted by moving the second suspension member relative to the fixed member. For example, the flipping can be adjusted by rotating the adjusting screw of the adjustment device, wherein rotating the adjusting screw moves the second suspension member relative to the fixed member. Specifically, the actuator suspension is configured to cause the actuator to flip about the pivot axis of the pivot hinge relative to a support element, such as a guide rail, by movement. In particular, the movement allows for a maximum flipping angle of 20°, for example, a maximum of 10° or a maximum of 5°. In this embodiment, the fixed member is a component of both the pivot hinge and the adjustment device.

Preferably, the drive suspension includes at least one first isolating element, particularly a mechanical isolating element or a damping element, wherein the at least one first isolating element is configured to reduce or prevent the transmission of vibration or solid-borne noise from the drive to the support element, wherein the first isolating element is preferably mounted on a rotating hinge, wherein the drive suspension preferably has a second isolating element, wherein the second isolating element is preferably mounted on an adjustment device. Preferably, one or more isolating elements are spring damping elements. The drive can be decoupled from the support element in terms of the propagation of vibration or solid-borne noise through the isolating element. In particular, the isolating element is configured to suppress vibration or solid-borne noise between the drive and the support element. The isolating element can be arranged between the first suspension member and the fixed member or between the second suspension member and the fixed member.

Preferably, the connecting mechanism, arranged through at least one first opening of the first suspension member and at least one second opening of the fixing member, is at least partially enclosed by a first insulating element. Specifically, the connecting mechanism is surrounded by the insulating element in the area of at least one first opening, for example, in the area of at least one first opening and at least one second opening. In embodiments, at least one insulating element comprises plastic or rubber. The at least one insulating element provides the advantage of preventing solid-borne sound transmission to a building in which elevator equipment with a drive system according to the embodiment described herein is installed.

In a preferred embodiment, the drive suspension, particularly the first or second suspension component, includes an adapter plate configured to secure the drive suspension to the suspension-side end of the drive. The adapter plate is rigidly connected to the drive, for example, by screwing. The adapter plate may have a shaft hole through which the drive shaft of the drive passes. In some embodiments, the adapter plate is manufactured as a separate component. In other embodiments, the adapter plate is manufactured as part of the first or second suspension component. In particular, the first and second suspension components, together with the adapter plate, may be manufactured as a single piece.

According to an embodiment, the elevator equipment includes a drive system as described herein. The elevator equipment includes an elevator car. The elevator car is configured to move along guide rails. The elevator equipment includes a counterweight connected to the elevator car via a hoist. The guide rails are preferably disposed between the elevator car and the counterweight. A drive unit is designed to drive the hoist. By driving the hoist, the elevator car and the counterweight can move vertically, for example, in the opposite vertical direction. The descriptions of direction such as "above," "below," "horizontal," or "vertical" are particularly relevant to the direction of gravity.

In a preferred embodiment, the drive unit is located in the upper end region of the elevator equipment. The upper end region of the elevator equipment can be understood, for example, as the vertical region of the elevator equipment, which corresponds to the upper 30%, particularly the upper 20%, or the upper 10% of the height of the elevator equipment. For example, the drive unit can be located in a low shaft head. In particular, the elevator equipment can be implemented without a machine room.

Preferably, the lifting device includes a belt. The belt may be made of, for example, a sheathed rope, such as a sheathed wire rope. The belt has a width in cross-section greater than its thickness. For example, adjusting the rotation of the drive relative to the support element can prevent or reduce belt skewing or uneven load on the belt. This rotation can be readjusted particularly during the service life of the elevator equipment. In another embodiment, the lifting device includes at least one rope, such as at least one wire rope.

In the elevator equipment according to a preferred embodiment, the elevator car has a sidewall facing the drive side of the drive system, and the shaft of the drive extends at least substantially parallel to the sidewall on the drive side. "At least substantially parallel" here is specifically understood to mean a parallel orientation or an orientation deviating from a parallel orientation by a maximum of 20°, for example, a maximum deviation of 10° or 5°. In particular, the drive wheels of the drive are arranged between the counterweight and the elevator car in a top view of the elevator equipment.

Preferred embodiments include at least one additional drive system. Specifically, the elevator equipment includes at least one additional drive system according to the embodiments described herein. The drive system and the at least one additional drive system may be arranged on opposite sides of the elevator car. Preferably, the at least one additional drive system drives an additional hoist, which is connected to the elevator car and, in particular, to an additional counterweight. Using at least two drive systems can provide the advantage of being able to use smaller or lighter drives. In particular, the space requirements of the drive system can be reduced. For example, in a top view of the elevator equipment, the drives may be arranged between the elevator car and the shaft wall or the counterweight.

In a preferred embodiment of the method for assembly, the driver and driver suspension are pre-assembled into a driver-drive suspension unit. This is achieved by securing a first suspension member of the driver suspension to the driver and a fixing member to the first suspension member. That is, this includes connecting the first suspension member and the fixing member to form a rotating hinge of the driver suspension. For example, the driver may utilize the first suspension member arranged relative to the fixing member such that the openings of the first suspension member and the fixing member are arranged along the axis of rotation of the rotating hinge to be formed. Next, to form the rotating hinge, a connecting mechanism, such as a pin, stud, or screw, may be guided or arranged through the opening. This method step is preferably already performed during factory manufacturing. The second suspension member connected to the fixing member is also preferably already installed in the factory, thus providing the driver-drive suspension unit in the field, in which the tilting can be adjusted.

Preferably, the method further includes the step of pushing the pre-assembled driver-drive suspension unit into the support element until it reaches the final position, and then securing the driver-drive suspension unit to the support element (5) for example by screws.

Preferably, the method further includes adjusting the tilt by moving the second suspension member relative to the fixed member to orient the actuator relative to the support element. This movement can be achieved by rotating the adjusting screw of the adjustment device. In particular, the tilt about the rotation axis of the pivot hinge is adjusted. In a preferred method, the actuator is mounted on a guide rail, which serves as the support element.

The preferred embodiment offers the following advantages over the prior art: the drive unit can be mounted on the support element, such as on the guide rail, in a space-saving manner. In particular, the drive system according to the preferred embodiment can be mounted on or above the guide rail without additional components, or even without a machine room. The drive system according to the preferred embodiment can be mounted in elevator shafts with low shaft heads. Specifically, according to the embodiment, the drive system can be equipped with a particularly small or lightweight drive unit. Furthermore, the preferred embodiment offers the advantage of being able to adjust the drive unit's tilt relative to the support element. Tilt can be avoided or reduced, especially when using a belt as a lifting device. The tilt can be readjusted during the service life of the elevator equipment.

Attached Figure Description

The various aspects of the present invention will now be described in detail with reference to the accompanying drawings and embodiments, in which:

Figure 1 shows a schematic diagram of a preferred embodiment of the driver-drive suspension unit;

Figure 2 shows a schematic cross-sectional view of the embodiment shown in Figure 1;

Figure 3 shows a schematic diagram of a preferred embodiment of the drive system, in which the driver-drive suspension unit shown in Figures 1 and 2 is installed;

Figure 4 shows a schematic diagram of a preferred embodiment of the elevator equipment;

Figure 5 shows a schematic top view of an elevator device according to a preferred embodiment; and

Figure 6 shows a schematic diagram of a preferred method for mounting the drive unit onto the support element of the elevator equipment.

Detailed Implementation

Figure 1 shows a schematic diagram of a drive-drive suspension unit 2 according to a possible design according to the present invention. The drive-drive suspension unit 2 includes a drive 3, which is mounted via a drive suspension 7. Figure 2 shows a schematic cross-sectional view of the drive-drive suspension unit 2 in Figure 1. This cross-sectional view shows a section along the axis 61 of the drive shaft 15 of the drive 3 and parallel to the longitudinal axis of the guide rail (not shown, see Figure 3). In Figures 1 and 2, the axis 61 of the drive 3 is oriented at least substantially perpendicular to the rotation axis 31 of the rotating hinge 9. In particular, the drive system 1 is configured such that the axis 61 extends at least substantially parallel to the side wall of the drive side of the elevator car.

The drive suspension 7 includes a pivot hinge 9 for pivotally supporting the drive 3 on the support element 5. The pivot hinge 9 includes a fixing member 21 that is fixed to the support element 5 (not shown, see FIG. 3). The fixing member 21 has an arcuate edge 22 that extends directly onto the drive wheel 13. The pivot hinge 9 also includes a first suspension member 23 fixed to the drive 3. The first suspension member 23 is rigidly connected to the drive 3, particularly by a threaded connection. In the illustrated embodiment, the first suspension member 23 has an opening along the rotation axis 31 of the pivot hinge 9. As can be seen from FIGS. 1 and 2, the fixing member 21 has two openings along the rotation axis 31 of the pivot hinge 9. For example, as shown in FIG. 2, the suspension member 23 extends between the two openings of the fixing member 21. The hinged interlocking of the fixing member and the first suspension member can, for example, increase the bending stiffness of the pivot hinge 9 relative to the torque perpendicular to the rotation axis 31 of the pivot hinge 9, particularly relative to the torque in the direction of the longitudinal axis of the guide rail. The connecting mechanism 29 is arranged through these openings. In the illustrated embodiment, the connecting mechanism 29 is implemented as a bolt, and more particularly as a threaded bolt.

The drive suspension 7 includes an adjustment device 11. The adjustment device 11 includes a fixed member 21 and a second suspension member 41. The second suspension member 41 is linearly movable relative to the fixed member 21. In the embodiments of FIG. 1, 2, and 3, the second suspension member 41 can be moved relative to the fixed member 21 by rotating the adjusting screw 43 of the adjustment device 11. By moving the second suspension member 41 relative to the fixed member 21, the rotation of the drive 3 about the rotation axis 31 of the rotation hinge 9 relative to the support element 5 can be adjusted or calibrated. In particular, the rotation of the drive shaft 15 and the drive wheel 13 arranged on the drive shaft 15 relative to the support element 5 can also be adjusted. For example, when using a belt as a lifting device, adjusting the rotation of the drive wheel 13 can prevent or reduce belt skewing.

The actuator suspension 7 of the illustrated embodiment includes a second isolating element 48 disposed between the first suspension member 23 and the fixing member 21, and between the second suspension member 41 and the fixing member 21. Specifically, the first isolating element 47 is disposed around the connecting mechanism 29 in the region of the openings in the first suspension member 23 and the fixing member 21. The isolating elements 47 and 48 are configured to reduce, and in particular suppress, the propagation of vibrations or solid-borne noise from the actuator 3 toward the support element 5 (see FIG. 3).

In the illustrated embodiment, the driver 3 is configured as a driveless electric motor. The driver suspension 7 includes an adapter plate 33, which is fixed to the electric motor. The first suspension member 23 and the second suspension member 41 are fixed to the driver 3 via the adapter plate 33.

Figure 3 shows a view of an embodiment of the drive-drive suspension unit 2 mounted on the drive system 1, wherein the drive-drive suspension unit 2 is inserted into and fixed to the support element 5. In Figure 3, the support element is configured as a guide rail for guiding the elevator car, and in the end region of the guide rail 5, there is an insertion possibility for the fixing member 21 of the drive suspension 7. The fixing member 21 is rigidly connected to the support element 5.

Figures 4 and 5 illustrate an exemplary embodiment of elevator equipment 51. Elevator equipment 51 includes a drive system 1 according to the embodiment described herein, the drive system having a driver 3 and a driver suspension 7 for securing the driver 3 to a support element 5. In Figures 4 and 5, guide rails for guiding an elevator car 53 are provided as the support element 5. The elevator car 53 is connected to a counterweight 55 via a hoist 57. The hoist 57, for example a belt, is guided on a drive wheel 13 of the driver 3. The driver 3 is configured to drive the hoist 57 and cause the elevator car 53 and the counterweight 55 to move vertically.

In Figures 4 and 5, the actuator 7 is located in the upper end region of the elevator device 51. As exemplarily shown in the top view of the elevator device 51 in Figure 5, the axis 61 of the actuator 3 is oriented at least substantially parallel to the side wall 63 of the drive side of the elevator car 53. The rotation axis 31 of the rotating hinge of the actuator suspension 7 is oriented at least substantially perpendicular to the axis 61 and at least substantially perpendicular to the vertical direction. The rotation of the axis 61 relative to the vertical direction or relative to the longitudinal axis of the guide rail is, for example, set to be at least substantially perpendicular.

The elevator equipment 51 of Figures 4 and 5 has an additional drive system 71 according to an embodiment of the drive system described herein. This additional drive system 71 includes an additional drive 73 and an additional drive suspension 75 for securing the additional drive 73 to an additional support element 79, which is formed in Figures 4 and 5 by additional guide rails. The additional drive 73 is configured to drive an additional hoist 81, which is connected to the elevator car 53 and an additional counterweight 77. Using an additional drive system allows for the use of smaller or lighter drives. In particular, it reduces the space requirements of the drive in the shaft head or pit. Furthermore, it simplifies the installation of smaller or lighter drives.

Figure 6 illustrates a method 100 for mounting a drive unit onto a support element of an elevator device in an exemplary embodiment. At 110, method 100 includes pre-assembling a drive unit (3) and a drive suspension (7) into a drive-drive suspension unit (2). A first suspension component and a second suspension component are secured to the drive unit via an adapter plate. Subsequently, the drive unit is positioned such that a stud is guided through an opening in the first suspension component of the fixing element to form a hinge-like rotating hinge. The stud is then secured. This step can be performed in the factory, allowing the pre-assembled drive-drive suspension unit to be provided on-site.

After pre-assembly, at 120, the driver-drive suspension unit is pushed into the support element, and at the final position of the pushed-in state, the driver-drive suspension unit is secured to the support element, for example, by tightening.

At 130, the rotation of the drive around the pivot hinge is adjusted by turning the adjusting bolt. The rotation of the drive or the drive axis is set such that the axis extends at least substantially perpendicular to the vertical direction, or to avoid or reduce belt skewing.

A drive system for elevator equipment, elevator equipment, and a method for mounting the drive system onto a support element of the elevator equipment.

Technical Field

The present invention relates to a drive system for an elevator device, an elevator device, and a method for mounting a drive unit on a support element of the elevator device.

Background Technology

Known elevator equipment for transporting people or goods includes an elevator car that can move vertically within an elevator shaft. Typically, the elevator car is connected to a counterweight via a hoist. The drive system for moving the elevator car along guide rails can be located, for example, on a drive structure at the head of the elevator shaft or in a machine room above the elevator shaft. However, drive systems known to date for elevator equipment require significant space, such as at the head of the elevator shaft, or involve expensive assembly.

Summary of the Invention

The object of this invention is to provide a drive system for elevator equipment, and more particularly, an elevator device that improves upon drive systems or elevator equipment known in the prior art, wherein the space requirements of the drive system should be reduced or the assembly of the drive system should be simplified. Furthermore, the object of this invention is to provide a method for assembling a drive unit for elevator equipment.

This objective is achieved by the drive system according to claim 1 and the method according to the parallel claims. Advantageous improvements and embodiments are derived from the dependent claims and the specification.

One aspect of the invention relates to a drive system for an elevator device, comprising a drive unit and a drive unit suspension for securing the drive unit to a support element of the elevator device, wherein the drive unit suspension includes a pivot hinge through which the drive unit is secured to the support element and the pivot hinge is configured to rotatably support the drive unit on the support element, and the drive unit includes an adjustment device for adjusting the rotation of the drive unit about the pivot hinge.

Another aspect of the invention relates to an elevator device having a drive system according to one of the embodiments described herein, an elevator car, and a counterweight connected to the elevator car via a hoist, wherein a drive unit is configured to drive the hoist.

Another aspect of the invention relates to a method for mounting a drive on a support element of an elevator device, wherein the drive is supported on the support element by means of a rotating hinge, the drive is stabilized relative to the support element, and the rotation of the drive about the rotating hinge is adjusted.

In a preferred embodiment, the drive includes a motor, particularly a motor and a transmission element. The drive can be configured without transmission. The drive has a drive shaft. The drive shaft is rotatable about the axis of the drive. A drive wheel of the drive can be fixed on the drive shaft. The drive wheel is configured to provide contact between the hoisting device and the drive of the elevator equipment. In particular, the drive wheel is configured to transmit the force provided by the drive to the hoisting device. Preferably, the drive suspension is configured such that, for a drive fixed to a support element, the drive wheel is positioned between the motor of the drive and the support element.

Preferably, the drive system is configured such that, in its assembled state, it includes a substantially horizontally extending shaft or axis having a drive wheel constructed therein.

Preferably, the rotating hinge is positioned above the substantially horizontally extending axis, and the adjusting device is positioned below the axis.

Preferably, the drive system includes guide rails for guiding the elevator car, wherein the guide rails form a support element. In another preferred embodiment, the support element may be the shaft wall of the elevator equipment or a load-bearing structure in the shaft of the elevator equipment.

In a preferred embodiment, the rotating hinge of the actuator suspension can be understood as a rotatable connection between the actuator and the support element. Preferably, the axis of rotation of the rotating hinge is at least substantially perpendicular to the axis of the actuator. "At least substantially perpendicular" is understood here specifically as a vertical orientation or an orientation deviating from a vertical orientation by a maximum of 15°, for example, a maximum deviation of 10° or 5°. In an embodiment, the axis of rotation may be at least substantially perpendicular to the axis of the actuator and oriented perpendicular to the longitudinal axis of the guide rail. The axis of the actuator may be at least substantially perpendicular to the axis of rotation of the rotating hinge and at least substantially perpendicular to the vertical direction, for example, perpendicular to the longitudinal axis of the guide rail. In a preferred embodiment, the axis of the actuator is oriented towards the guide rail.

Preferably, the adjustment device is arranged below the rotating hinge. The rotating hinge is particularly designed to transfer tensile loads from the actuator to the support element. The adjustment device, for example, is configured to transfer compressive loads from the actuator to the support element. In one embodiment, the rotating hinge is positioned above the drive wheel of the actuator, while the adjustment device is positioned below the drive wheel. In particular, the drive wheel is positioned between the rotating hinge and the adjustment device. In another embodiment, the adjustment device is arranged around the drive wheel. For example, the adjustment device may extend in a cage-like manner around the drive wheel toward the support element, wherein the adjustment device has at least one window for guiding the lifting device through. In a preferred embodiment, the drive wheel has a maximum drive wheel diameter of 150 mm, particularly a maximum of 100 mm, or a maximum of 70 mm.

In a preferred embodiment, the rotating hinge of the actuator suspension includes a fixed component and a first suspension component. The fixed component is configured to be fixed to a support element, and the first suspension component is fixed to the actuator. The fixed component and the first suspension component are rotatably connected to each other about a rotation axis. Preferably, the fixed component is rigidly connected to the support element, and the first suspension component is rigidly connected to the actuator. The rigid connection can be provided by an engagement method, such as by bolting.

The fixing component is preferably configured to have at least one arcuate edge, wherein the arcuate edge extends directly above the drive wheel in the assembled state.

The advantage of the curved edge is that the forces acting on it (due to the weight of the drive unit and the car, which is suspended from the drive wheels by the spreader in the assembled state) are thus evenly distributed along the edge. Therefore, compared to the less advantageous obvious right-angle structure, force concentration at the intersection of edges extending at right angles to each other can be prevented. Furthermore, by arranging the curved edge directly above the drive wheels, an arc-shaped overpressure can be formed, extending arcuately from one radial end of the drive wheel towards the other. Therefore, the distance between the curved edge and the traction surface of the drive wheel increases at least initially from one radial end to the other. Thus, the curved edge constitutes the lateral boundary, which begins directly above the traction surface at the radial end of the drive wheel. Therefore, lateral runaway of the spreader is prevented by the edge. Therefore, spreader impact can be prevented without the need for an additional edge on the drive wheels for this purpose.

The fixing component and the support element are preferably designed such that the fixing component can be partially pushed into the support element and can be fixed to the support element in the final position of the pushed-in state.

Therefore, the drive unit and drive suspension can be supplied as pre-assembled drive-drive suspension units and easily pushed into the openings provided in the support elements on-site and secured in the final pushed-in position. The relatively expensive assembly of the drive-drive suspension unit can be separated from the on-site assembly. In particular, the relatively expensive swivel hinges do not need to be assembled on-site. Thus, the ability to finely adjust the orientation of the drive wheels is combined with the simple on-site installation of the drive unit (and drive suspension).

In a preferred embodiment, the first suspension component has at least one first opening and the fixing component has at least one second opening. The rotary hinge includes a connecting element guided through the at least one first opening and the at least one second opening. The connecting element may be, for example, a pin, a stud, or a screw. In particular, the connecting element is arranged along the rotation axis of the rotary hinge.

In a preferred embodiment, the rotating shaft is positioned precisely above the center of the drive wheel, thereby generating automatic orientation of the drive wheel while ignoring the weight of the drive unit.

In a preferred embodiment, the rotating hinge is implemented as a hinge. In this embodiment, the first suspension member has at least one first opening along the rotation axis of the rotating hinge. The fixing member has at least two second openings along the rotation axis of the rotating hinge. The first suspension member extends between the at least two second openings of the fixing member, wherein at least one first opening of the first suspension member is disposed between the two second openings of the fixing member.

In a preferred embodiment, the rotary hinge is configured to support torque or a torque component in a direction perpendicular to the rotation axis. Specifically, the rotary hinge is configured to support torque or a torque component in the direction of the drive axis or in the direction of the longitudinal axis of the guide rail. The fixed member and the first suspension member can contact each other along the rotation axis via at least two contact surfaces, wherein the contact surfaces extend around the rotation axis, particularly around and perpendicular to the rotation axis. In particular, the fixed member and the first suspension member can form a torque support. For example, the rotary hinge is capable of at least partially supporting the torque or torque component generated by the drive hoist or the movement of the elevator car or counterweight.

Preferably, the adjustment device for the drive suspension includes a fixing member and a second suspension member. The fixing member is configured to be fixed to a support element, and the second suspension member is fixed to the drive and connected to the fixing member. The fixing member and the second suspension member are adjustable relative to each other. The adjustment device can be implemented, in particular, as a linear adjustment device. The adjustment device may include an adjusting screw, wherein the adjustment device is configured to displace the fixing member and the second suspension member relative to each other, especially linearly, by rotating the adjusting screw. Preferably, the second suspension member is rigidly connected to the drive, and the fixing member is rigidly connected to the support element.

In a preferred embodiment, the flipping of the actuator about the pivot hinge can be adjusted by moving the second suspension member relative to the fixed member. For example, the flipping can be adjusted by rotating the adjusting screw of the adjustment device, wherein rotating the adjusting screw moves the second suspension member relative to the fixed member. Specifically, the actuator suspension is configured to cause the actuator to flip about the pivot axis of the pivot hinge relative to a support element, such as a guide rail, by movement. In particular, the movement allows for a maximum flipping angle of 20°, for example, a maximum of 10° or a maximum of 5°. In this embodiment, the fixed member is a component of both the pivot hinge and the adjustment device.

Preferably, the drive suspension includes at least one first isolating element, particularly a mechanical isolating element or a damping element, wherein the at least one first isolating element is configured to reduce or prevent the transmission of vibration or solid-borne noise from the drive to the support element, wherein the first isolating element is preferably mounted on a rotating hinge, wherein the drive suspension preferably has a second isolating element, wherein the second isolating element is preferably mounted on an adjustment device. Preferably, one or more isolating elements are spring damping elements. The drive can be decoupled from the support element in terms of the propagation of vibration or solid-borne noise through the isolating element. In particular, the isolating element is configured to suppress vibration or solid-borne noise between the drive and the support element. The isolating element can be arranged between the first suspension member and the fixed member or between the second suspension member and the fixed member.

Preferably, the connecting mechanism, arranged through at least one first opening of the first suspension member and at least one second opening of the fixing member, is at least partially enclosed by a first insulating element. Specifically, the connecting mechanism is surrounded by the insulating element in the area of at least one first opening, for example, in the area of at least one first opening and at least one second opening. In embodiments, at least one insulating element comprises plastic or rubber. The at least one insulating element provides the advantage of preventing solid-borne sound transmission to a building in which elevator equipment with a drive system according to the embodiment described herein is installed.

In a preferred embodiment, the drive suspension, particularly the first or second suspension component, includes an adapter plate configured to secure the drive suspension to the suspension-side end of the drive. The adapter plate is rigidly connected to the drive, for example, by screwing. The adapter plate may have a shaft hole through which the drive shaft of the drive passes. In some embodiments, the adapter plate is manufactured as a separate component. In other embodiments, the adapter plate is manufactured as part of the first or second suspension component. In particular, the first and second suspension components, together with the adapter plate, may be manufactured as a single piece.

According to an embodiment, the elevator equipment includes a drive system as described herein. The elevator equipment includes an elevator car. The elevator car is configured to move along guide rails. The elevator equipment includes a counterweight connected to the elevator car via a hoist. The guide rails are preferably disposed between the elevator car and the counterweight. A drive unit is designed to drive the hoist. By driving the hoist, the elevator car and the counterweight can move vertically, for example, in the opposite vertical direction. The descriptions of direction such as "above," "below," "horizontal," or "vertical" are particularly relevant to the direction of gravity.

In a preferred embodiment, the drive unit is located in the upper end region of the elevator equipment. The upper end region of the elevator equipment can be understood, for example, as the vertical region of the elevator equipment, which corresponds to the upper 30%, particularly the upper 20%, or the upper 10% of the height of the elevator equipment. For example, the drive unit can be located in a low shaft head. In particular, the elevator equipment can be implemented without a machine room.

Preferably, the lifting device includes a belt. The belt may be made of, for example, a sheathed rope, such as a sheathed wire rope. The belt has a width in cross-section greater than its thickness. For example, adjusting the rotation of the drive relative to the support element can prevent or reduce belt skewing or uneven load on the belt. This rotation can be readjusted particularly during the service life of the elevator equipment. In another embodiment, the lifting device includes at least one rope, such as at least one wire rope.

In the elevator equipment according to a preferred embodiment, the elevator car has a sidewall facing the drive side of the drive system, and the shaft of the drive extends at least substantially parallel to the sidewall on the drive side. "At least substantially parallel" here is specifically understood to mean a parallel orientation or an orientation deviating from a parallel orientation by a maximum of 20°, for example, a maximum deviation of 10° or 5°. In particular, the drive wheels of the drive are arranged between the counterweight and the elevator car in a top view of the elevator equipment.

Preferred embodiments include at least one additional drive system. Specifically, the elevator equipment includes at least one additional drive system according to the embodiments described herein. The drive system and the at least one additional drive system may be arranged on opposite sides of the elevator car. Preferably, the at least one additional drive system drives an additional hoist, which is connected to the elevator car and, in particular, to an additional counterweight. Using at least two drive systems can provide the advantage of being able to use smaller or lighter drives. In particular, the space requirements of the drive system can be reduced. For example, in a top view of the elevator equipment, the drives may be arranged between the elevator car and the shaft wall or the counterweight.

In a preferred embodiment of the method for assembly, the driver and driver suspension are pre-assembled into a driver-drive suspension unit. This is achieved by securing a first suspension member of the driver suspension to the driver and a fixing member to the first suspension member. That is, this includes connecting the first suspension member and the fixing member to form a rotating hinge of the driver suspension. For example, the driver may utilize the first suspension member arranged relative to the fixing member such that the openings of the first suspension member and the fixing member are arranged along the axis of rotation of the rotating hinge to be formed. Next, to form the rotating hinge, a connecting mechanism, such as a pin, stud, or screw, may be guided or arranged through the opening. This method step is preferably already performed during factory manufacturing. The second suspension member connected to the fixing member is also preferably already installed in the factory, thus providing the driver-drive suspension unit in the field, in which the tilting can be adjusted.

Preferably, the method further includes the step of pushing the pre-assembled driver-drive suspension unit into the support element until it reaches the final position, and then securing the driver-drive suspension unit to the support element (5) for example by screws.

Preferably, the method further includes adjusting the tilt by moving the second suspension member relative to the fixed member to orient the actuator relative to the support element. This movement can be achieved by rotating the adjusting screw of the adjustment device. In particular, the tilt about the rotation axis of the pivot hinge is adjusted. In a preferred method, the actuator is mounted on a guide rail, which serves as the support element.

The preferred embodiment offers the following advantages over the prior art: the drive unit can be mounted on the support element, such as on the guide rail, in a space-saving manner. In particular, the drive system according to the preferred embodiment can be mounted on or above the guide rail without additional components, or even without a machine room. The drive system according to the preferred embodiment can be mounted in elevator shafts with low shaft heads. Specifically, according to the embodiment, the drive system can be equipped with a particularly small or lightweight drive unit. Furthermore, the preferred embodiment offers the advantage of being able to adjust the drive unit's tilt relative to the support element. Tilt can be avoided or reduced, especially when using a belt as a lifting device. The tilt can be readjusted during the service life of the elevator equipment.

Attached Figure Description

The various aspects of the present invention will now be described in detail with reference to the accompanying drawings and embodiments, in which:

Figure 1 shows a schematic diagram of a preferred embodiment of the driver-drive suspension unit;

Figure 2 shows a schematic cross-sectional view of the embodiment shown in Figure 1;

Figure 3 shows a schematic diagram of a preferred embodiment of the drive system, in which the driver-drive suspension unit shown in Figures 1 and 2 is installed;

Figure 4 shows a schematic diagram of a preferred embodiment of the elevator equipment;

Figure 5 shows a schematic top view of an elevator device according to a preferred embodiment; and

Figure 6 shows a schematic diagram of a preferred method for mounting the drive unit onto the support element of the elevator equipment.

Detailed Implementation

Figure 1 shows a schematic diagram of a drive-drive suspension unit 2 according to a possible design according to the present invention. The drive-drive suspension unit 2 includes a drive 3, which is mounted via a drive suspension 7. Figure 2 shows a schematic cross-sectional view of the drive-drive suspension unit 2 in Figure 1. This cross-sectional view shows a section along the axis 61 of the drive shaft 15 of the drive 3 and parallel to the longitudinal axis of the guide rail (not shown, see Figure 3). In Figures 1 and 2, the axis 61 of the drive 3 is oriented at least substantially perpendicular to the rotation axis 31 of the rotating hinge 9. In particular, the drive system 1 is configured such that the axis 61 extends at least substantially parallel to the side wall of the drive side of the elevator car.

The drive suspension 7 includes a pivot hinge 9 for pivotally supporting the drive 3 on the support element 5. The pivot hinge 9 includes a fixing member 21 that is fixed to the support element 5 (not shown, see FIG. 3). The fixing member 21 has an arcuate edge 22 that extends directly onto the drive wheel 13. The pivot hinge 9 also includes a first suspension member 23 fixed to the drive 3. The first suspension member 23 is rigidly connected to the drive 3, particularly by a threaded connection. In the illustrated embodiment, the first suspension member 23 has an opening along the rotation axis 31 of the pivot hinge 9. As can be seen from FIGS. 1 and 2, the fixing member 21 has two openings along the rotation axis 31 of the pivot hinge 9. For example, as shown in FIG. 2, the suspension member 23 extends between the two openings of the fixing member 21. The hinged interlocking of the fixing member and the first suspension member can, for example, increase the bending stiffness of the pivot hinge 9 relative to the torque perpendicular to the rotation axis 31 of the pivot hinge 9, particularly relative to the torque in the direction of the longitudinal axis of the guide rail. The connecting mechanism 29 is arranged through these openings. In the illustrated embodiment, the connecting mechanism 29 is implemented as a bolt, and more particularly as a threaded bolt.

The drive suspension 7 includes an adjustment device 11. The adjustment device 11 includes a fixed member 21 and a second suspension member 41. The second suspension member 41 is linearly movable relative to the fixed member 21. In the embodiments of FIG. 1, 2, and 3, the second suspension member 41 can be moved relative to the fixed member 21 by rotating the adjusting screw 43 of the adjustment device 11. By moving the second suspension member 41 relative to the fixed member 21, the rotation of the drive 3 about the rotation axis 31 of the rotation hinge 9 relative to the support element 5 can be adjusted or calibrated. In particular, the rotation of the drive shaft 15 and the drive wheel 13 arranged on the drive shaft 15 relative to the support element 5 can also be adjusted. For example, when using a belt as a lifting device, adjusting the rotation of the drive wheel 13 can prevent or reduce belt skewing.

The actuator suspension 7 of the illustrated embodiment includes a second isolating element 48 disposed between the first suspension member 23 and the fixing member 21, and between the second suspension member 41 and the fixing member 21. Specifically, the first isolating element 47 is disposed around the connecting mechanism 29 in the region of the openings in the first suspension member 23 and the fixing member 21. The isolating elements 47 and 48 are configured to reduce, and in particular suppress, the propagation of vibrations or solid-borne noise from the actuator 3 toward the support element 5 (see FIG. 3).

In the illustrated embodiment, the driver 3 is configured as a driveless electric motor. The driver suspension 7 includes an adapter plate 33, which is fixed to the electric motor. The first suspension member 23 and the second suspension member 41 are fixed to the driver 3 via the adapter plate 33.

Figure 3 shows a view of an embodiment of the drive-drive suspension unit 2 mounted on the drive system 1, wherein the drive-drive suspension unit 2 is inserted into and fixed to the support element 5. In Figure 3, the support element is configured as a guide rail for guiding the elevator car, and in the end region of the guide rail 5, there is an insertion possibility for the fixing member 21 of the drive suspension 7. The fixing member 21 is rigidly connected to the support element 5.

Figures 4 and 5 illustrate an exemplary embodiment of elevator equipment 51. Elevator equipment 51 includes a drive system 1 according to the embodiment described herein, the drive system having a driver 3 and a driver suspension 7 for securing the driver 3 to a support element 5. In Figures 4 and 5, guide rails for guiding an elevator car 53 are provided as the support element 5. The elevator car 53 is connected to a counterweight 55 via a hoist 57. The hoist 57, for example a belt, is guided on a drive wheel 13 of the driver 3. The driver 3 is configured to drive the hoist 57 and cause the elevator car 53 and the counterweight 55 to move vertically.

In Figures 4 and 5, the actuator 7 is located in the upper end region of the elevator device 51. As exemplarily shown in the top view of the elevator device 51 in Figure 5, the axis 61 of the actuator 3 is oriented at least substantially parallel to the side wall 63 of the drive side of the elevator car 53. The rotation axis 31 of the rotating hinge of the actuator suspension 7 is oriented at least substantially perpendicular to the axis 61 and at least substantially perpendicular to the vertical direction. The rotation of the axis 61 relative to the vertical direction or relative to the longitudinal axis of the guide rail is, for example, set to be at least substantially perpendicular.

The elevator equipment 51 of Figures 4 and 5 has an additional drive system 71 according to an embodiment of the drive system described herein. This additional drive system 71 includes an additional drive 73 and an additional drive suspension 75 for securing the additional drive 73 to an additional support element 79, which is formed in Figures 4 and 5 by additional guide rails. The additional drive 73 is configured to drive an additional hoist 81, which is connected to the elevator car 53 and an additional counterweight 77. Using an additional drive system allows for the use of smaller or lighter drives. In particular, it reduces the space requirements of the drive in the shaft head or pit. Furthermore, it simplifies the installation of smaller or lighter drives.

Figure 6 illustrates a method 100 for mounting a drive unit onto a support element of an elevator device in an exemplary embodiment. At 110, method 100 includes pre-assembling a drive unit (3) and a drive suspension (7) into a drive-drive suspension unit (2). A first suspension component and a second suspension component are secured to the drive unit via an adapter plate. Subsequently, the drive unit is positioned such that a stud is guided through an opening in the first suspension component of the fixing element to form a hinge-like rotating hinge. The stud is then secured. This step can be performed in the factory, allowing the pre-assembled drive-drive suspension unit to be provided on-site.

After pre-assembly, at 120, the driver-drive suspension unit is pushed into the support element, and at the final position of the pushed-in state, the driver-drive suspension unit is secured to the support element, for example, by tightening.

At 130, the rotation of the drive around the pivot hinge is adjusted by turning the adjusting bolt. The rotation of the drive or the drive axis is set such that the axis extends at least substantially perpendicular to the vertical direction, or to avoid or reduce belt skewing.

Technical Field

The present invention relates to a drive system for an elevator device, an elevator device, and a method for mounting a drive unit on a support element of the elevator device.

Background Technology

Known elevator equipment for transporting people or goods includes an elevator car that can move vertically within an elevator shaft. Typically, the elevator car is connected to a counterweight via a hoist. The drive system for moving the elevator car along guide rails can be located, for example, on a drive structure at the head of the elevator shaft or in a machine room above the elevator shaft. However, drive systems known to date for elevator equipment require significant space, such as at the head of the elevator shaft, or involve expensive assembly.

Summary of the Invention

The object of this invention is to provide a drive system for elevator equipment, and more particularly, an elevator device that improves upon drive systems or elevator equipment known in the prior art, wherein the space requirements of the drive system should be reduced or the assembly of the drive system should be simplified. Furthermore, the object of this invention is to provide a method for assembling a drive unit for elevator equipment.

This objective is achieved by the drive system according to claim 1 and the method according to the parallel claims. Advantageous improvements and embodiments are derived from the dependent claims and the specification.

One aspect of the invention relates to a drive system for an elevator device, comprising a drive unit and a drive unit suspension for securing the drive unit to a support element of the elevator device, wherein the drive unit suspension includes a pivot hinge through which the drive unit is secured to the support element and the pivot hinge is configured to rotatably support the drive unit on the support element, and the drive unit includes an adjustment device for adjusting the rotation of the drive unit about the pivot hinge.

Another aspect of the invention relates to an elevator device having a drive system according to one of the embodiments described herein, an elevator car, and a counterweight connected to the elevator car via a hoist, wherein a drive unit is configured to drive the hoist.

Another aspect of the invention relates to a method for mounting a drive on a support element of an elevator device, wherein the drive is supported on the support element by means of a rotating hinge, the drive is stabilized relative to the support element, and the rotation of the drive about the rotating hinge is adjusted.

In a preferred embodiment, the drive includes a motor, particularly a motor and a transmission element. The drive can be configured without transmission. The drive has a drive shaft. The drive shaft is rotatable about the axis of the drive. A drive wheel of the drive can be fixed on the drive shaft. The drive wheel is configured to provide contact between the hoisting device and the drive of the elevator equipment. In particular, the drive wheel is configured to transmit the force provided by the drive to the hoisting device. Preferably, the drive suspension is configured such that, for a drive fixed to a support element, the drive wheel is positioned between the motor of the drive and the support element.

Preferably, the drive system is configured such that, in its assembled state, it includes a substantially horizontally extending shaft or axis having a drive wheel constructed therein.

Preferably, the rotating hinge is positioned above the substantially horizontally extending axis, and the adjusting device is positioned below the axis.

Preferably, the drive system includes guide rails for guiding the elevator car, wherein the guide rails form a support element. In another preferred embodiment, the support element may be the shaft wall of the elevator equipment or a load-bearing structure in the shaft of the elevator equipment.

In a preferred embodiment, the rotating hinge of the actuator suspension can be understood as a rotatable connection between the actuator and the support element. Preferably, the axis of rotation of the rotating hinge is at least substantially perpendicular to the axis of the actuator. "At least substantially perpendicular" is understood here specifically as a vertical orientation or an orientation deviating from a vertical orientation by a maximum of 15°, for example, a maximum deviation of 10° or 5°. In an embodiment, the axis of rotation may be at least substantially perpendicular to the axis of the actuator and oriented perpendicular to the longitudinal axis of the guide rail. The axis of the actuator may be at least substantially perpendicular to the axis of rotation of the rotating hinge and at least substantially perpendicular to the vertical direction, for example, perpendicular to the longitudinal axis of the guide rail. In a preferred embodiment, the axis of the actuator is oriented towards the guide rail.

Preferably, the adjustment device is arranged below the rotating hinge. The rotating hinge is particularly designed to transfer tensile loads from the actuator to the support element. The adjustment device, for example, is configured to transfer compressive loads from the actuator to the support element. In one embodiment, the rotating hinge is positioned above the drive wheel of the actuator, while the adjustment device is positioned below the drive wheel. In particular, the drive wheel is positioned between the rotating hinge and the adjustment device. In another embodiment, the adjustment device is arranged around the drive wheel. For example, the adjustment device may extend in a cage-like manner around the drive wheel toward the support element, wherein the adjustment device has at least one window for guiding the lifting device through. In a preferred embodiment, the drive wheel has a maximum drive wheel diameter of 150 mm, particularly a maximum of 100 mm, or a maximum of 70 mm.

In a preferred embodiment, the rotating hinge of the actuator suspension includes a fixed component and a first suspension component. The fixed component is configured to be fixed to a support element, and the first suspension component is fixed to the actuator. The fixed component and the first suspension component are rotatably connected to each other about a rotation axis. Preferably, the fixed component is rigidly connected to the support element, and the first suspension component is rigidly connected to the actuator. The rigid connection can be provided by an engagement method, such as by bolting.

The fixing component is preferably configured to have at least one arcuate edge, wherein the arcuate edge extends directly above the drive wheel in the assembled state.

The advantage of the curved edge is that the forces acting on it (due to the weight of the drive unit and the car, which is suspended from the drive wheels by the spreader in the assembled state) are thus evenly distributed along the edge. Therefore, compared to the less advantageous obvious right-angle structure, force concentration at the intersection of edges extending at right angles to each other can be prevented. Furthermore, by arranging the curved edge directly above the drive wheels, an arc-shaped overpressure can be formed, extending arcuately from one radial end of the drive wheel towards the other. Therefore, the distance between the curved edge and the traction surface of the drive wheel increases at least initially from one radial end to the other. Thus, the curved edge constitutes the lateral boundary, which begins directly above the traction surface at the radial end of the drive wheel. Therefore, lateral runaway of the spreader is prevented by the edge. Therefore, spreader impact can be prevented without the need for an additional edge on the drive wheels for this purpose.

The fixing component and the support element are preferably designed such that the fixing component can be partially pushed into the support element and can be fixed to the support element in the final position of the pushed-in state.

Therefore, the drive unit and drive suspension can be supplied as pre-assembled drive-drive suspension units and easily pushed into the openings provided in the support elements on-site and secured in the final pushed-in position. The relatively expensive assembly of the drive-drive suspension unit can be separated from the on-site assembly. In particular, the relatively expensive swivel hinges do not need to be assembled on-site. Thus, the ability to finely adjust the orientation of the drive wheels is combined with the simple on-site installation of the drive unit (and drive suspension).

In a preferred embodiment, the first suspension component has at least one first opening and the fixing component has at least one second opening. The rotary hinge includes a connecting element guided through the at least one first opening and the at least one second opening. The connecting element may be, for example, a pin, a stud, or a screw. In particular, the connecting element is arranged along the rotation axis of the rotary hinge.

In a preferred embodiment, the rotating shaft is positioned precisely above the center of the drive wheel, thereby generating automatic orientation of the drive wheel while ignoring the weight of the drive unit.

In a preferred embodiment, the rotating hinge is implemented as a hinge. In this embodiment, the first suspension member has at least one first opening along the rotation axis of the rotating hinge. The fixing member has at least two second openings along the rotation axis of the rotating hinge. The first suspension member extends between the at least two second openings of the fixing member, wherein at least one first opening of the first suspension member is disposed between the two second openings of the fixing member.

In a preferred embodiment, the rotary hinge is configured to support torque or a torque component in a direction perpendicular to the rotation axis. Specifically, the rotary hinge is configured to support torque or a torque component in the direction of the drive axis or in the direction of the longitudinal axis of the guide rail. The fixed member and the first suspension member can contact each other along the rotation axis via at least two contact surfaces, wherein the contact surfaces extend around the rotation axis, particularly around and perpendicular to the rotation axis. In particular, the fixed member and the first suspension member can form a torque support. For example, the rotary hinge is capable of at least partially supporting the torque or torque component generated by the drive hoist or the movement of the elevator car or counterweight.

Preferably, the adjustment device for the drive suspension includes a fixing member and a second suspension member. The fixing member is configured to be fixed to a support element, and the second suspension member is fixed to the drive and connected to the fixing member. The fixing member and the second suspension member are adjustable relative to each other. The adjustment device can be implemented, in particular, as a linear adjustment device. The adjustment device may include an adjusting screw, wherein the adjustment device is configured to displace the fixing member and the second suspension member relative to each other, especially linearly, by rotating the adjusting screw. Preferably, the second suspension member is rigidly connected to the drive, and the fixing member is rigidly connected to the support element.

In a preferred embodiment, the flipping of the actuator about the pivot hinge can be adjusted by moving the second suspension member relative to the fixed member. For example, the flipping can be adjusted by rotating the adjusting screw of the adjustment device, wherein rotating the adjusting screw moves the second suspension member relative to the fixed member. Specifically, the actuator suspension is configured to cause the actuator to flip about the pivot axis of the pivot hinge relative to a support element, such as a guide rail, by movement. In particular, the movement allows for a maximum flipping angle of 20°, for example, a maximum of 10° or a maximum of 5°. In this embodiment, the fixed member is a component of both the pivot hinge and the adjustment device.

Preferably, the drive suspension includes at least one first isolating element, particularly a mechanical isolating element or a damping element, wherein the at least one first isolating element is configured to reduce or prevent the transmission of vibration or solid-borne noise from the drive to the support element, wherein the first isolating element is preferably mounted on a rotating hinge, wherein the drive suspension preferably has a second isolating element, wherein the second isolating element is preferably mounted on an adjustment device. Preferably, one or more isolating elements are spring damping elements. The drive can be decoupled from the support element in terms of the propagation of vibration or solid-borne noise through the isolating element. In particular, the isolating element is configured to suppress vibration or solid-borne noise between the drive and the support element. The isolating element can be arranged between the first suspension member and the fixed member or between the second suspension member and the fixed member.

Preferably, the connecting mechanism, arranged through at least one first opening of the first suspension member and at least one second opening of the fixing member, is at least partially enclosed by a first insulating element. Specifically, the connecting mechanism is surrounded by the insulating element in the area of at least one first opening, for example, in the area of at least one first opening and at least one second opening. In embodiments, at least one insulating element comprises plastic or rubber. The at least one insulating element provides the advantage of preventing solid-borne sound transmission to a building in which elevator equipment with a drive system according to the embodiment described herein is installed.

In a preferred embodiment, the drive suspension, particularly the first or second suspension component, includes an adapter plate configured to secure the drive suspension to the suspension-side end of the drive. The adapter plate is rigidly connected to the drive, for example, by screwing. The adapter plate may have a shaft hole through which the drive shaft of the drive passes. In some embodiments, the adapter plate is manufactured as a separate component. In other embodiments, the adapter plate is manufactured as part of the first or second suspension component. In particular, the first and second suspension components, together with the adapter plate, may be manufactured as a single piece.

According to an embodiment, the elevator equipment includes a drive system as described herein. The elevator equipment includes an elevator car. The elevator car is configured to move along guide rails. The elevator equipment includes a counterweight connected to the elevator car via a hoist. The guide rails are preferably disposed between the elevator car and the counterweight. A drive unit is designed to drive the hoist. By driving the hoist, the elevator car and the counterweight can move vertically, for example, in the opposite vertical direction. The descriptions of direction such as "above," "below," "horizontal," or "vertical" are particularly relevant to the direction of gravity.

In a preferred embodiment, the drive unit is located in the upper end region of the elevator equipment. The upper end region of the elevator equipment can be understood, for example, as the vertical region of the elevator equipment, which corresponds to the upper 30%, particularly the upper 20%, or the upper 10% of the height of the elevator equipment. For example, the drive unit can be located in a low shaft head. In particular, the elevator equipment can be implemented without a machine room.

Preferably, the lifting device includes a belt. The belt may be made of, for example, a sheathed rope, such as a sheathed wire rope. The belt has a width in cross-section greater than its thickness. For example, adjusting the rotation of the drive relative to the support element can prevent or reduce belt skewing or uneven load on the belt. This rotation can be readjusted particularly during the service life of the elevator equipment. In another embodiment, the lifting device includes at least one rope, such as at least one wire rope.

In the elevator equipment according to a preferred embodiment, the elevator car has a sidewall facing the drive side of the drive system, and the shaft of the drive extends at least substantially parallel to the sidewall on the drive side. "At least substantially parallel" here is specifically understood to mean a parallel orientation or an orientation deviating from a parallel orientation by a maximum of 20°, for example, a maximum deviation of 10° or 5°. In particular, the drive wheels of the drive are arranged between the counterweight and the elevator car in a top view of the elevator equipment.

Preferred embodiments include at least one additional drive system. Specifically, the elevator equipment includes at least one additional drive system according to the embodiments described herein. The drive system and the at least one additional drive system may be arranged on opposite sides of the elevator car. Preferably, the at least one additional drive system drives an additional hoist, which is connected to the elevator car and, in particular, to an additional counterweight. Using at least two drive systems can provide the advantage of being able to use smaller or lighter drives. In particular, the space requirements of the drive system can be reduced. For example, in a top view of the elevator equipment, the drives may be arranged between the elevator car and the shaft wall or the counterweight.

In a preferred embodiment of the method for assembly, the driver and driver suspension are pre-assembled into a driver-drive suspension unit. This is achieved by securing a first suspension member of the driver suspension to the driver and a fixing member to the first suspension member. That is, this includes connecting the first suspension member and the fixing member to form a rotating hinge of the driver suspension. For example, the driver may utilize the first suspension member arranged relative to the fixing member such that the openings of the first suspension member and the fixing member are arranged along the axis of rotation of the rotating hinge to be formed. Next, to form the rotating hinge, a connecting mechanism, such as a pin, stud, or screw, may be guided or arranged through the opening. This method step is preferably already performed during factory manufacturing. The second suspension member connected to the fixing member is also preferably already installed in the factory, thus providing the driver-drive suspension unit in the field, in which the tilting can be adjusted.

Preferably, the method further includes the step of pushing the pre-assembled driver-drive suspension unit into the support element until it reaches the final position, and then securing the driver-drive suspension unit to the support element (5) for example by screws.

Preferably, the method further includes adjusting the tilt by moving the second suspension member relative to the fixed member to orient the actuator relative to the support element. This movement can be achieved by rotating the adjusting screw of the adjustment device. In particular, the tilt about the rotation axis of the pivot hinge is adjusted. In a preferred method, the actuator is mounted on a guide rail, which serves as the support element.

The preferred embodiment offers the following advantages over the prior art: the drive unit can be mounted on the support element, such as on the guide rail, in a space-saving manner. In particular, the drive system according to the preferred embodiment can be mounted on or above the guide rail without additional components, or even without a machine room. The drive system according to the preferred embodiment can be mounted in elevator shafts with low shaft heads. Specifically, according to the embodiment, the drive system can be equipped with a particularly small or lightweight drive unit. Furthermore, the preferred embodiment offers the advantage of being able to adjust the drive unit's tilt relative to the support element. Tilt can be avoided or reduced, especially when using a belt as a lifting device. The tilt can be readjusted during the service life of the elevator equipment.

Attached Figure Description

The various aspects of the present invention will now be described in detail with reference to the accompanying drawings and embodiments, in which:

Figure 1 shows a schematic diagram of a preferred embodiment of the driver-drive suspension unit;

Figure 2 shows a schematic cross-sectional view of the embodiment shown in Figure 1;

Figure 3 shows a schematic diagram of a preferred embodiment of the drive system, in which the driver-drive suspension unit shown in Figures 1 and 2 is installed;

Figure 4 shows a schematic diagram of a preferred embodiment of the elevator equipment;

Figure 5 shows a schematic top view of an elevator device according to a preferred embodiment; and

Figure 6 shows a schematic diagram of a preferred method for mounting the drive unit onto the support element of the elevator equipment.

Detailed Implementation

Figure 1 shows a schematic diagram of a drive-drive suspension unit 2 according to a possible design according to the present invention. The drive-drive suspension unit 2 includes a drive 3, which is mounted via a drive suspension 7. Figure 2 shows a schematic cross-sectional view of the drive-drive suspension unit 2 in Figure 1. This cross-sectional view shows a section along the axis 61 of the drive shaft 15 of the drive 3 and parallel to the longitudinal axis of the guide rail (not shown, see Figure 3). In Figures 1 and 2, the axis 61 of the drive 3 is oriented at least substantially perpendicular to the rotation axis 31 of the rotating hinge 9. In particular, the drive system 1 is configured such that the axis 61 extends at least substantially parallel to the side wall of the drive side of the elevator car.

The drive suspension 7 includes a pivot hinge 9 for pivotally supporting the drive 3 on the support element 5. The pivot hinge 9 includes a fixing member 21 that is fixed to the support element 5 (not shown, see FIG. 3). The fixing member 21 has an arcuate edge 22 that extends directly onto the drive wheel 13. The pivot hinge 9 also includes a first suspension member 23 fixed to the drive 3. The first suspension member 23 is rigidly connected to the drive 3, particularly by a threaded connection. In the illustrated embodiment, the first suspension member 23 has an opening along the rotation axis 31 of the pivot hinge 9. As can be seen from FIGS. 1 and 2, the fixing member 21 has two openings along the rotation axis 31 of the pivot hinge 9. For example, as shown in FIG. 2, the suspension member 23 extends between the two openings of the fixing member 21. The hinged interlocking of the fixing member and the first suspension member can, for example, increase the bending stiffness of the pivot hinge 9 relative to the torque perpendicular to the rotation axis 31 of the pivot hinge 9, particularly relative to the torque in the direction of the longitudinal axis of the guide rail. The connecting mechanism 29 is arranged through these openings. In the illustrated embodiment, the connecting mechanism 29 is implemented as a bolt, and more particularly as a threaded bolt.

The drive suspension 7 includes an adjustment device 11. The adjustment device 11 includes a fixed member 21 and a second suspension member 41. The second suspension member 41 is linearly movable relative to the fixed member 21. In the embodiments of FIG. 1, 2, and 3, the second suspension member 41 can be moved relative to the fixed member 21 by rotating the adjusting screw 43 of the adjustment device 11. By moving the second suspension member 41 relative to the fixed member 21, the rotation of the drive 3 about the rotation axis 31 of the rotation hinge 9 relative to the support element 5 can be adjusted or calibrated. In particular, the rotation of the drive shaft 15 and the drive wheel 13 arranged on the drive shaft 15 relative to the support element 5 can also be adjusted. For example, when using a belt as a lifting device, adjusting the rotation of the drive wheel 13 can prevent or reduce belt skewing.

The actuator suspension 7 of the illustrated embodiment includes a second isolating element 48 disposed between the first suspension member 23 and the fixing member 21, and between the second suspension member 41 and the fixing member 21. Specifically, the first isolating element 47 is disposed around the connecting mechanism 29 in the region of the openings in the first suspension member 23 and the fixing member 21. The isolating elements 47 and 48 are configured to reduce, and in particular suppress, the propagation of vibrations or solid-borne noise from the actuator 3 toward the support element 5 (see FIG. 3).

In the illustrated embodiment, the driver 3 is configured as a driveless electric motor. The driver suspension 7 includes an adapter plate 33, which is fixed to the electric motor. The first suspension member 23 and the second suspension member 41 are fixed to the driver 3 via the adapter plate 33.

Figure 3 shows a view of an embodiment of the drive-drive suspension unit 2 mounted on the drive system 1, wherein the drive-drive suspension unit 2 is inserted into and fixed to the support element 5. In Figure 3, the support element is configured as a guide rail for guiding the elevator car, and in the end region of the guide rail 5, there is an insertion possibility for the fixing member 21 of the drive suspension 7. The fixing member 21 is rigidly connected to the support element 5.

Figures 4 and 5 illustrate an exemplary embodiment of elevator equipment 51. Elevator equipment 51 includes a drive system 1 according to the embodiment described herein, the drive system having a driver 3 and a driver suspension 7 for securing the driver 3 to a support element 5. In Figures 4 and 5, guide rails for guiding an elevator car 53 are provided as the support element 5. The elevator car 53 is connected to a counterweight 55 via a hoist 57. The hoist 57, for example a belt, is guided on a drive wheel 13 of the driver 3. The driver 3 is configured to drive the hoist 57 and cause the elevator car 53 and the counterweight 55 to move vertically.

In Figures 4 and 5, the actuator 7 is located in the upper end region of the elevator device 51. As exemplarily shown in the top view of the elevator device 51 in Figure 5, the axis 61 of the actuator 3 is oriented at least substantially parallel to the side wall 63 of the drive side of the elevator car 53. The rotation axis 31 of the rotating hinge of the actuator suspension 7 is oriented at least substantially perpendicular to the axis 61 and at least substantially perpendicular to the vertical direction. The rotation of the axis 61 relative to the vertical direction or relative to the longitudinal axis of the guide rail is, for example, set to be at least substantially perpendicular.

The elevator equipment 51 of Figures 4 and 5 has an additional drive system 71 according to an embodiment of the drive system described herein. This additional drive system 71 includes an additional drive 73 and an additional drive suspension 75 for securing the additional drive 73 to an additional support element 79, which is formed in Figures 4 and 5 by additional guide rails. The additional drive 73 is configured to drive an additional hoist 81, which is connected to the elevator car 53 and an additional counterweight 77. Using an additional drive system allows for the use of smaller or lighter drives. In particular, it reduces the space requirements of the drive in the shaft head or pit. Furthermore, it simplifies the installation of smaller or lighter drives.

Figure 6 illustrates a method 100 for mounting a drive unit onto a support element of an elevator device in an exemplary embodiment. At 110, method 100 includes pre-assembling a drive unit (3) and a drive suspension (7) into a drive-drive suspension unit (2). A first suspension component and a second suspension component are secured to the drive unit via an adapter plate. Subsequently, the drive unit is positioned such that a stud is guided through an opening in the first suspension component of the fixing element to form a hinge-like rotating hinge. The stud is then secured. This step can be performed in the factory, allowing the pre-assembled drive-drive suspension unit to be provided on-site.

After pre-assembly, at 120, the driver-drive suspension unit is pushed into the support element, and at the final position of the pushed-in state, the driver-drive suspension unit is secured to the support element, for example, by tightening.

At 130, the rotation of the drive around the pivot hinge is adjusted by turning the adjusting bolt. The rotation of the drive or the drive axis is set such that the axis extends at least substantially perpendicular to the vertical direction, or to avoid or reduce belt skewing.

Technical Field

The present invention relates to a drive system for an elevator device, an elevator device, and a method for mounting a drive unit on a support element of the elevator device.

Background Technology

Known elevator equipment for transporting people or goods includes an elevator car that can move vertically within an elevator shaft. Typically, the elevator car is connected to a counterweight via a hoist. The drive system for moving the elevator car along guide rails can be located, for example, on a drive structure at the head of the elevator shaft or in a machine room above the elevator shaft. However, drive systems known to date for elevator equipment require significant space, such as at the head of the elevator shaft, or involve expensive assembly.

Summary of the Invention

The object of this invention is to provide a drive system for elevator equipment, and more particularly, an elevator device that improves upon drive systems or elevator equipment known in the prior art, wherein the space requirements of the drive system should be reduced or the assembly of the drive system should be simplified. Furthermore, the object of this invention is to provide a method for assembling a drive unit for elevator equipment.

This objective is achieved by the drive system according to claim 1 and the method according to the parallel claims. Advantageous improvements and embodiments are derived from the dependent claims and the specification.

One aspect of the invention relates to a drive system for an elevator device, comprising a drive unit and a drive unit suspension for securing the drive unit to a support element of the elevator device, wherein the drive unit suspension includes a pivot hinge through which the drive unit is secured to the support element and the pivot hinge is configured to rotatably support the drive unit on the support element, and the drive unit includes an adjustment device for adjusting the rotation of the drive unit about the pivot hinge.

Another aspect of the invention relates to an elevator device having a drive system according to one of the embodiments described herein, an elevator car, and a counterweight connected to the elevator car via a hoist, wherein a drive unit is configured to drive the hoist.

Another aspect of the invention relates to a method for mounting a drive on a support element of an elevator device, wherein the drive is supported on the support element by means of a rotating hinge, the drive is stabilized relative to the support element, and the rotation of the drive about the rotating hinge is adjusted.

In a preferred embodiment, the drive includes a motor, particularly a motor and a transmission element. The drive can be configured without transmission. The drive has a drive shaft. The drive shaft is rotatable about the axis of the drive. A drive wheel of the drive can be fixed on the drive shaft. The drive wheel is configured to provide contact between the hoisting device and the drive of the elevator equipment. In particular, the drive wheel is configured to transmit the force provided by the drive to the hoisting device. Preferably, the drive suspension is configured such that, for a drive fixed to a support element, the drive wheel is positioned between the motor of the drive and the support element.

Preferably, the drive system is configured such that, in its assembled state, it includes a substantially horizontally extending shaft or axis having a drive wheel constructed therein.

Preferably, the rotating hinge is positioned above the substantially horizontally extending axis, and the adjusting device is positioned below the axis.

Preferably, the drive system includes guide rails for guiding the elevator car, wherein the guide rails form a support element. In another preferred embodiment, the support element may be the shaft wall of the elevator equipment or a load-bearing structure in the shaft of the elevator equipment.

In a preferred embodiment, the rotating hinge of the actuator suspension can be understood as a rotatable connection between the actuator and the support element. Preferably, the axis of rotation of the rotating hinge is at least substantially perpendicular to the axis of the actuator. "At least substantially perpendicular" is understood here specifically as a vertical orientation or an orientation deviating from a vertical orientation by a maximum of 15°, for example, a maximum deviation of 10° or 5°. In an embodiment, the axis of rotation may be at least substantially perpendicular to the axis of the actuator and oriented perpendicular to the longitudinal axis of the guide rail. The axis of the actuator may be at least substantially perpendicular to the axis of rotation of the rotating hinge and at least substantially perpendicular to the vertical direction, for example, perpendicular to the longitudinal axis of the guide rail. In a preferred embodiment, the axis of the actuator is oriented towards the guide rail.

Preferably, the adjustment device is arranged below the rotating hinge. The rotating hinge is particularly designed to transfer tensile loads from the actuator to the support element. The adjustment device, for example, is configured to transfer compressive loads from the actuator to the support element. In one embodiment, the rotating hinge is positioned above the drive wheel of the actuator, while the adjustment device is positioned below the drive wheel. In particular, the drive wheel is positioned between the rotating hinge and the adjustment device. In another embodiment, the adjustment device is arranged around the drive wheel. For example, the adjustment device may extend in a cage-like manner around the drive wheel toward the support element, wherein the adjustment device has at least one window for guiding the lifting device through. In a preferred embodiment, the drive wheel has a maximum drive wheel diameter of 150 mm, particularly a maximum of 100 mm, or a maximum of 70 mm.

In a preferred embodiment, the rotating hinge of the actuator suspension includes a fixed component and a first suspension component. The fixed component is configured to be fixed to a support element, and the first suspension component is fixed to the actuator. The fixed component and the first suspension component are rotatably connected to each other about a rotation axis. Preferably, the fixed component is rigidly connected to the support element, and the first suspension component is rigidly connected to the actuator. The rigid connection can be provided by an engagement method, such as by bolting.

The fixing component is preferably configured to have at least one arcuate edge, wherein the arcuate edge extends directly above the drive wheel in the assembled state.

The advantage of the curved edge is that the forces acting on it (due to the weight of the drive unit and the car, which is suspended from the drive wheels by the spreader in the assembled state) are thus evenly distributed along the edge. Therefore, compared to the less advantageous obvious right-angle structure, force concentration at the intersection of edges extending at right angles to each other can be prevented. Furthermore, by arranging the curved edge directly above the drive wheels, an arc-shaped overpressure can be formed, extending arcuately from one radial end of the drive wheel towards the other. Therefore, the distance between the curved edge and the traction surface of the drive wheel increases at least initially from one radial end to the other. Thus, the curved edge constitutes the lateral boundary, which begins directly above the traction surface at the radial end of the drive wheel. Therefore, lateral runaway of the spreader is prevented by the edge. Therefore, spreader impact can be prevented without the need for an additional edge on the drive wheels for this purpose.

The fixing component and the support element are preferably designed such that the fixing component can be partially pushed into the support element and can be fixed to the support element in the final position of the pushed-in state.

Therefore, the drive unit and drive suspension can be supplied as pre-assembled drive-drive suspension units and easily pushed into the openings provided in the support elements on-site and secured in the final pushed-in position. The relatively expensive assembly of the drive-drive suspension unit can be separated from the on-site assembly. In particular, the relatively expensive swivel hinges do not need to be assembled on-site. Thus, the ability to finely adjust the orientation of the drive wheels is combined with the simple on-site installation of the drive unit (and drive suspension).

In a preferred embodiment, the first suspension component has at least one first opening and the fixing component has at least one second opening. The rotary hinge includes a connecting element guided through the at least one first opening and the at least one second opening. The connecting element may be, for example, a pin, a stud, or a screw. In particular, the connecting element is arranged along the rotation axis of the rotary hinge.

In a preferred embodiment, the rotating shaft is positioned precisely above the center of the drive wheel, thereby generating automatic orientation of the drive wheel while ignoring the weight of the drive unit.

In a preferred embodiment, the rotating hinge is implemented as a hinge. In this embodiment, the first suspension member has at least one first opening along the rotation axis of the rotating hinge. The fixing member has at least two second openings along the rotation axis of the rotating hinge. The first suspension member extends between the at least two second openings of the fixing member, wherein at least one first opening of the first suspension member is disposed between the two second openings of the fixing member.

In a preferred embodiment, the rotary hinge is configured to support torque or a torque component in a direction perpendicular to the rotation axis. Specifically, the rotary hinge is configured to support torque or a torque component in the direction of the drive axis or in the direction of the longitudinal axis of the guide rail. The fixed member and the first suspension member can contact each other along the rotation axis via at least two contact surfaces, wherein the contact surfaces extend around the rotation axis, particularly around and perpendicular to the rotation axis. In particular, the fixed member and the first suspension member can form a torque support. For example, the rotary hinge is capable of at least partially supporting the torque or torque component generated by the drive hoist or the movement of the elevator car or counterweight.

Preferably, the adjustment device for the drive suspension includes a fixing member and a second suspension member. The fixing member is configured to be fixed to a support element, and the second suspension member is fixed to the drive and connected to the fixing member. The fixing member and the second suspension member are adjustable relative to each other. The adjustment device can be implemented, in particular, as a linear adjustment device. The adjustment device may include an adjusting screw, wherein the adjustment device is configured to displace the fixing member and the second suspension member relative to each other, especially linearly, by rotating the adjusting screw. Preferably, the second suspension member is rigidly connected to the drive, and the fixing member is rigidly connected to the support element.

In a preferred embodiment, the flipping of the actuator about the pivot hinge can be adjusted by moving the second suspension member relative to the fixed member. For example, the flipping can be adjusted by rotating the adjusting screw of the adjustment device, wherein rotating the adjusting screw moves the second suspension member relative to the fixed member. Specifically, the actuator suspension is configured to cause the actuator to flip about the pivot axis of the pivot hinge relative to a support element, such as a guide rail, by movement. In particular, the movement allows for a maximum flipping angle of 20°, for example, a maximum of 10° or a maximum of 5°. In this embodiment, the fixed member is a component of both the pivot hinge and the adjustment device.

Preferably, the drive suspension includes at least one first isolating element, particularly a mechanical isolating element or a damping element, wherein the at least one first isolating element is configured to reduce or prevent the transmission of vibration or solid-borne noise from the drive to the support element, wherein the first isolating element is preferably mounted on a rotating hinge, wherein the drive suspension preferably has a second isolating element, wherein the second isolating element is preferably mounted on an adjustment device. Preferably, one or more isolating elements are spring damping elements. The drive can be decoupled from the support element in terms of the propagation of vibration or solid-borne noise through the isolating element. In particular, the isolating element is configured to suppress vibration or solid-borne noise between the drive and the support element. The isolating element can be arranged between the first suspension member and the fixed member or between the second suspension member and the fixed member.

Preferably, the connecting mechanism, arranged through at least one first opening of the first suspension member and at least one second opening of the fixing member, is at least partially enclosed by a first insulating element. Specifically, the connecting mechanism is surrounded by the insulating element in the area of at least one first opening, for example, in the area of at least one first opening and at least one second opening. In embodiments, at least one insulating element comprises plastic or rubber. The at least one insulating element provides the advantage of preventing solid-borne sound transmission to a building in which elevator equipment with a drive system according to the embodiment described herein is installed.

In a preferred embodiment, the drive suspension, particularly the first or second suspension component, includes an adapter plate configured to secure the drive suspension to the suspension-side end of the drive. The adapter plate is rigidly connected to the drive, for example, by screwing. The adapter plate may have a shaft hole through which the drive shaft of the drive passes. In some embodiments, the adapter plate is manufactured as a separate component. In other embodiments, the adapter plate is manufactured as part of the first or second suspension component. In particular, the first and second suspension components, together with the adapter plate, may be manufactured as a single piece.

According to an embodiment, the elevator equipment includes a drive system as described herein. The elevator equipment includes an elevator car. The elevator car is configured to move along guide rails. The elevator equipment includes a counterweight connected to the elevator car via a hoist. The guide rails are preferably disposed between the elevator car and the counterweight. A drive unit is designed to drive the hoist. By driving the hoist, the elevator car and the counterweight can move vertically, for example, in the opposite vertical direction. The descriptions of direction such as "above," "below," "horizontal," or "vertical" are particularly relevant to the direction of gravity.

In a preferred embodiment, the drive unit is located in the upper end region of the elevator equipment. The upper end region of the elevator equipment can be understood, for example, as the vertical region of the elevator equipment, which corresponds to the upper 30%, particularly the upper 20%, or the upper 10% of the height of the elevator equipment. For example, the drive unit can be located in a low shaft head. In particular, the elevator equipment can be implemented without a machine room.

Preferably, the lifting device includes a belt. The belt may be made of, for example, a sheathed rope, such as a sheathed wire rope. The belt has a width in cross-section greater than its thickness. For example, adjusting the rotation of the drive relative to the support element can prevent or reduce belt skewing or uneven load on the belt. This rotation can be readjusted particularly during the service life of the elevator equipment. In another embodiment, the lifting device includes at least one rope, such as at least one wire rope.

In the elevator equipment according to a preferred embodiment, the elevator car has a sidewall facing the drive side of the drive system, and the shaft of the drive extends at least substantially parallel to the sidewall on the drive side. "At least substantially parallel" here is specifically understood to mean a parallel orientation or an orientation deviating from a parallel orientation by a maximum of 20°, for example, a maximum deviation of 10° or 5°. In particular, the drive wheels of the drive are arranged between the counterweight and the elevator car in a top view of the elevator equipment.

Preferred embodiments include at least one additional drive system. Specifically, the elevator equipment includes at least one additional drive system according to the embodiments described herein. The drive system and the at least one additional drive system may be arranged on opposite sides of the elevator car. Preferably, the at least one additional drive system drives an additional hoist, which is connected to the elevator car and, in particular, to an additional counterweight. Using at least two drive systems can provide the advantage of being able to use smaller or lighter drives. In particular, the space requirements of the drive system can be reduced. For example, in a top view of the elevator equipment, the drives may be arranged between the elevator car and the shaft wall or the counterweight.

In a preferred embodiment of the method for assembly, the driver and driver suspension are pre-assembled into a driver-drive suspension unit. This is achieved by securing a first suspension member of the driver suspension to the driver and a fixing member to the first suspension member. That is, this includes connecting the first suspension member and the fixing member to form a rotating hinge of the driver suspension. For example, the driver may utilize the first suspension member arranged relative to the fixing member such that the openings of the first suspension member and the fixing member are arranged along the axis of rotation of the rotating hinge to be formed. Next, to form the rotating hinge, a connecting mechanism, such as a pin, stud, or screw, may be guided or arranged through the opening. This method step is preferably already performed during factory manufacturing. The second suspension member connected to the fixing member is also preferably already installed in the factory, thus providing the driver-drive suspension unit in the field, in which the tilting can be adjusted.

Preferably, the method further includes the step of pushing the pre-assembled driver-drive suspension unit into the support element until it reaches the final position, and then securing the driver-drive suspension unit to the support element (5) for example by screws.

Preferably, the method further includes adjusting the tilt by moving the second suspension member relative to the fixed member to orient the actuator relative to the support element. This movement can be achieved by rotating the adjusting screw of the adjustment device. In particular, the tilt about the rotation axis of the pivot hinge is adjusted. In a preferred method, the actuator is mounted on a guide rail, which serves as the support element.

The preferred embodiment offers the following advantages over the prior art: the drive unit can be mounted on the support element, such as on the guide rail, in a space-saving manner. In particular, the drive system according to the preferred embodiment can be mounted on or above the guide rail without additional components, or even without a machine room. The drive system according to the preferred embodiment can be mounted in elevator shafts with low shaft heads. Specifically, according to the embodiment, the drive system can be equipped with a particularly small or lightweight drive unit. Furthermore, the preferred embodiment offers the advantage of being able to adjust the drive unit's tilt relative to the support element. Tilt can be avoided or reduced, especially when using a belt as a lifting device. The tilt can be readjusted during the service life of the elevator equipment.

Attached Figure Description

The various aspects of the present invention will now be described in detail with reference to the accompanying drawings and embodiments, in which:

Figure 1 shows a schematic diagram of a preferred embodiment of the driver-drive suspension unit;

Figure 2 shows a schematic cross-sectional view of the embodiment shown in Figure 1;

Figure 3 shows a schematic diagram of a preferred embodiment of the drive system, in which the driver-drive suspension unit shown in Figures 1 and 2 is installed;

Figure 4 shows a schematic diagram of a preferred embodiment of the elevator equipment;

Figure 5 shows a schematic top view of an elevator device according to a preferred embodiment; and

Figure 6 shows a schematic diagram of a preferred method for mounting the drive unit onto the support element of the elevator equipment.

Detailed Implementation

Figure 1 shows a schematic diagram of a drive-drive suspension unit 2 according to a possible design according to the present invention. The drive-drive suspension unit 2 includes a drive 3, which is mounted via a drive suspension 7. Figure 2 shows a schematic cross-sectional view of the drive-drive suspension unit 2 in Figure 1. This cross-sectional view shows a section along the axis 61 of the drive shaft 15 of the drive 3 and parallel to the longitudinal axis of the guide rail (not shown, see Figure 3). In Figures 1 and 2, the axis 61 of the drive 3 is oriented at least substantially perpendicular to the rotation axis 31 of the rotating hinge 9. In particular, the drive system 1 is configured such that the axis 61 extends at least substantially parallel to the side wall of the drive side of the elevator car.

The drive suspension 7 includes a pivot hinge 9 for pivotally supporting the drive 3 on the support element 5. The pivot hinge 9 includes a fixing member 21 that is fixed to the support element 5 (not shown, see FIG. 3). The fixing member 21 has an arcuate edge 22 that extends directly onto the drive wheel 13. The pivot hinge 9 also includes a first suspension member 23 fixed to the drive 3. The first suspension member 23 is rigidly connected to the drive 3, particularly by a threaded connection. In the illustrated embodiment, the first suspension member 23 has an opening along the rotation axis 31 of the pivot hinge 9. As can be seen from FIGS. 1 and 2, the fixing member 21 has two openings along the rotation axis 31 of the pivot hinge 9. For example, as shown in FIG. 2, the suspension member 23 extends between the two openings of the fixing member 21. The hinged interlocking of the fixing member and the first suspension member can, for example, increase the bending stiffness of the pivot hinge 9 relative to the torque perpendicular to the rotation axis 31 of the pivot hinge 9, particularly relative to the torque in the direction of the longitudinal axis of the guide rail. The connecting mechanism 29 is arranged through these openings. In the illustrated embodiment, the connecting mechanism 29 is implemented as a bolt, and more particularly as a threaded bolt.

The drive suspension 7 includes an adjustment device 11. The adjustment device 11 includes a fixed member 21 and a second suspension member 41. The second suspension member 41 is linearly movable relative to the fixed member 21. In the embodiments of FIG. 1, 2, and 3, the second suspension member 41 can be moved relative to the fixed member 21 by rotating the adjusting screw 43 of the adjustment device 11. By moving the second suspension member 41 relative to the fixed member 21, the rotation of the drive 3 about the rotation axis 31 of the rotation hinge 9 relative to the support element 5 can be adjusted or calibrated. In particular, the rotation of the drive shaft 15 and the drive wheel 13 arranged on the drive shaft 15 relative to the support element 5 can also be adjusted. For example, when using a belt as a lifting device, adjusting the rotation of the drive wheel 13 can prevent or reduce belt skewing.

The actuator suspension 7 of the illustrated embodiment includes a second isolating element 48 disposed between the first suspension member 23 and the fixing member 21, and between the second suspension member 41 and the fixing member 21. Specifically, the first isolating element 47 is disposed around the connecting mechanism 29 in the region of the openings in the first suspension member 23 and the fixing member 21. The isolating elements 47 and 48 are configured to reduce, and in particular suppress, the propagation of vibrations or solid-borne noise from the actuator 3 toward the support element 5 (see FIG. 3).

In the illustrated embodiment, the driver 3 is configured as a driveless electric motor. The driver suspension 7 includes an adapter plate 33, which is fixed to the electric motor. The first suspension member 23 and the second suspension member 41 are fixed to the driver 3 via the adapter plate 33.

Figure 3 shows a view of an embodiment of the drive-drive suspension unit 2 mounted on the drive system 1, wherein the drive-drive suspension unit 2 is inserted into and fixed to the support element 5. In Figure 3, the support element is configured as a guide rail for guiding the elevator car, and in the end region of the guide rail 5, there is an insertion possibility for the fixing member 21 of the drive suspension 7. The fixing member 21 is rigidly connected to the support element 5.

Figures 4 and 5 illustrate an exemplary embodiment of elevator equipment 51. Elevator equipment 51 includes a drive system 1 according to the embodiment described herein, the drive system having a driver 3 and a driver suspension 7 for securing the driver 3 to a support element 5. In Figures 4 and 5, guide rails for guiding an elevator car 53 are provided as the support element 5. The elevator car 53 is connected to a counterweight 55 via a hoist 57. The hoist 57, for example a belt, is guided on a drive wheel 13 of the driver 3. The driver 3 is configured to drive the hoist 57 and cause the elevator car 53 and the counterweight 55 to move vertically.

In Figures 4 and 5, the actuator 7 is located in the upper end region of the elevator device 51. As exemplarily shown in the top view of the elevator device 51 in Figure 5, the axis 61 of the actuator 3 is oriented at least substantially parallel to the side wall 63 of the drive side of the elevator car 53. The rotation axis 31 of the rotating hinge of the actuator suspension 7 is oriented at least substantially perpendicular to the axis 61 and at least substantially perpendicular to the vertical direction. The rotation of the axis 61 relative to the vertical direction or relative to the longitudinal axis of the guide rail is, for example, set to be at least substantially perpendicular.

The elevator equipment 51 of Figures 4 and 5 has an additional drive system 71 according to an embodiment of the drive system described herein. This additional drive system 71 includes an additional drive 73 and an additional drive suspension 75 for securing the additional drive 73 to an additional support element 79, which is formed in Figures 4 and 5 by additional guide rails. The additional drive 73 is configured to drive an additional hoist 81, which is connected to the elevator car 53 and an additional counterweight 77. Using an additional drive system allows for the use of smaller or lighter drives. In particular, it reduces the space requirements of the drive in the shaft head or pit. Furthermore, it simplifies the installation of smaller or lighter drives.

Figure 6 illustrates a method 100 for mounting a drive unit onto a support element of an elevator device in an exemplary embodiment. At 110, method 100 includes pre-assembling a drive unit (3) and a drive suspension (7) into a drive-drive suspension unit (2). A first suspension component and a second suspension component are secured to the drive unit via an adapter plate. Subsequently, the drive unit is positioned such that a stud is guided through an opening in the first suspension component of the fixing element to form a hinge-like rotating hinge. The stud is then secured. This step can be performed in the factory, allowing the pre-assembled drive-drive suspension unit to be provided on-site.

After pre-assembly, at 120, the driver-drive suspension unit is pushed into the support element, and at the final position of the pushed-in state, the driver-drive suspension unit is secured to the support element, for example, by tightening.

At 130, the rotation of the drive around the pivot hinge is adjusted by turning the adjusting bolt. The rotation of the drive or the drive axis is set such that the axis extends at least substantially perpendicular to the vertical direction, or to avoid or reduce belt skewing.

Claims (12)

1. A drive system (1) for elevator equipment, comprising:

Driver (3), and

A drive suspension (7) for fixing the drive (3) to the support element (5) of the elevator equipment.

The drive suspension (7) includes:

A rotating hinge (9) allows the actuator (3) to be fixed to the support element (5) by means of the rotating hinge, and the rotating hinge is configured to support the actuator (3) on the support element (5) in a flip-able manner; and

Adjustment device (11) for adjusting the rotation of the actuator (3) around the rotating hinge (9), wherein the rotating hinge (9) comprises:

A fixing component (21) configured to be fixed to a support element (5); and

The first suspension component (23) is fixed to the driver (3);

The fixing component (21) and the first suspension component (23) are connected to each other in a manner that allows them to rotate about the rotation axis (31).

The calibration device (11) includes:

The second suspension component (41) is fixed to the driver (3) and connected to the fixing component (21); wherein,

The fixing component (21) and the second suspension component (41) can be adjusted and moved relative to each other;

The fixing component (21) is implemented in at least two parts and has at least one first sheet (25) and at least one second sheet (27). The first sheet (25) is configured to be fixed to the first suspension component (23) and to be fixed to the support element (5). The second sheet (27) is configured to be fixed to the second suspension component (41). The first sheet (25) and the second sheet (27) are preferably connected to each other by rivets (28). The second sheet (27) is preferably designed as a U-shaped profile.

2. The drive system (1) according to any one of the preceding claims, wherein the drive system (1) is configured such that, in an assembled state, the drive system includes a substantially horizontally extending shaft or axis (61) having a drive wheel (13) constructed therein.

3. The drive system (1) according to claim 2, wherein the rotating hinge (9) is arranged above the substantially horizontally extending axis (61); and the adjustment device (11) is arranged below the axis (61).

4. The drive system (1) according to any one of the preceding claims, the drive system comprising a guide rail for guiding an elevator car, wherein the guide rail forms the support element (5).

5. The drive system (1) according to any one of the preceding claims, wherein the fixing member (21) is configured such that the fixing member has at least one arcuate edge (22), the arcuate edge (22) preferably extending directly above the drive wheel (13) in the assembled state.

6. The drive system (1) according to claim 1 or 2, wherein the fixing member (21) and the support element (5) are configured such that the fixing member (21) can be partially pushed into the support element (5) and can be fixed to the support element (5) at the final position of the pushed-in state.

7. The drive system (1) according to any one of the preceding claims, wherein the first suspension member (23) has at least one first opening and the fixing member (21) has at least one second opening; and the rotating hinge (9) includes a connecting element (29) guided through at least one first opening and at least one second opening.

8. The drive system (1) according to any one of the preceding claims, wherein the flipping of the drive (3) about the rotating hinge (9) can be adjusted by the movement of the second suspension member (41) relative to the fixed member (21).

9. The drive system (1) according to any one of the preceding claims, wherein the drive suspension (7) includes at least one first isolation element (47) configured to reduce or prevent vibration or solid-borne noise from the drive (3) to the support element (5), the first isolation element (47) preferably being mounted on the rotating hinge (9), and the drive suspension preferably having a second isolation element (48), wherein the second isolation element (48) preferably being mounted on the adjustment device (11).

10. An elevator device (51), comprising:

The drive system (1) according to any one of the preceding claims;

Elevator car (53); and

Counterweight (55), which is connected to the elevator car (53) via a hoist (57);

The driver (3) is configured to drive the lifting device (57).

11. The elevator device (51) according to claim 11, wherein the drive (3) is arranged in the upper end region of the elevator device (51) and preferably includes at least one additional drive system (71), wherein the hoist (57) preferably includes a belt, the elevator car (53) preferably has a side wall (63) facing the drive side of the drive system (1); and preferably, the axis (61) of the drive extends at least substantially parallel to the side wall (63) on the drive side, wherein the elevator device (51).

12. A method for mounting a drive (3) onto a support element (5) of an elevator device (51), particularly the elevator device (51) according to any one of claims 10 or 11, the method comprising:

The driver (3) and the driver suspension (7) are pre-assembled into a driver-drive suspension unit (2);

The pre-assembled driver-drive suspension unit (2) is pushed into the support element (5) until it reaches the final position, and then the driver-drive suspension unit (2) is secured to the support element (5); and

Adjust the rotation of the drive (3) around the rotating hinge (9).