DRIVE SYSTEM FOR AN ELEVATOR INSTALLATION, ELEVATOR INSTALLATION, AND METHOD FOR INSTALLING A DRIVE ON A SUPPORT ELEMENT OF AN ELEVATOR INSTALLATION

Abstract

A drive system for an elevator installation includes a drive and a drive suspension for fastening the drive to a support element of the elevator installation. The drive suspension has a rotary joint for tiltably mounting the drive on the support element and an adjustment device for setting a tilt of the drive about the rotary joint.

Claims

1-12. (canceled)

13. A drive/drive suspension unit for an elevator installation, the drive/drive suspension unit comprising: a drive; a drive suspension for fastening the drive to a support element of the elevator installation; wherein the drive suspension includes a rotary joint and an adjustment device, the rotary joint adapted to fasten the drive to the support element thereby enabling tiltably mounting the drive on the support element, and the adjustment device adapted to set a tilt of the drive about the rotary joint; wherein the rotary joint includes a fixing part and a first suspension part, the fixing part adapted to fasten to the support element and the first suspension part being fastened to the drive; wherein the fixing part and the first suspension part are rotatably connected to each other about an axis of rotation; wherein the adjustment device includes a second suspension part fastened to the drive and connected to the fixing part; wherein the fixing part and the second suspension part are displaceable relative to one another to set the tilt; and wherein the fixing part includes a first sheet metal part and a second sheet metal part, the first sheet metal part being adapted to fasten to the first suspension part and to the support element, the second sheet metal part being adapted to fasten to the second suspension part, the first sheet metal part and the second sheet metal part being connected to one another by rivets, and the second sheet metal part being formed as a U-profile.

14. The drive/drive suspension unit according to claim 13 wherein the drive/drive suspension unit, when in an installed state on the support element, has a horizontally extending shaft of the drive with a friction drive pulley arranged on the shaft.

15. The drive/drive suspension unit according to claim 14 wherein the rotary joint is arranged above a horizontal shaft axis of the shaft, and wherein the adjustment device is arranged below the shaft axis.

16. The drive/drive suspension unit according to claim 14 wherein the fixed part has an arc-like edge extending directly above the friction drive pulley in the installed state.

17. The drive/drive suspension unit according to claim 13 wherein the support element includes a guide rail for guiding an elevator car.

18. The drive/drive suspension unit according to claim 13 wherein the fixed part is adapted to be partially inserted into the support element and then fastened to the support element in an end position of an inserted state.

19. The drive/drive suspension unit according to claim 13 wherein the first suspension part has a first opening and the fixing part has a second opening; and wherein the rotary joint includes a connecting element guided through the first opening and the second opening.

20. The drive/drive suspension unit according to claim 13 wherein the drive suspension includes a first isolation element that reduces or prevents a transmission of vibrations or structure-borne noise from the drive to the support element when the fixing part is fastened to the support element.

21. the drive/drive suspension unit according to claim 20 wherein the first isolation element is attached to the rotary joint.

22. The drive/drive suspension unit according to claim 20 wherein the drive suspension includes a second isolation element attached to the adjustment device.

23. An elevator installation comprising: the drive/drive suspension unit according to claim 13; an elevator car; a counterweight connected to the elevator car via a carrier means; and wherein the drive of the drive/drive suspension unit drives the carrier means.

24. The elevator installation according to claim 23 including: a further one of the drive/drive suspension unit wherein the drive/drive suspension units are arranged in an upper end region of the elevator installation; wherein the carrier means is a belt; wherein the elevator car has a drive-side side wall facing the drive/drive suspension unit; and wherein a shaft axis of the drive of the drive/drive suspension unit extends substantially parallel to the drive-side side wall.

25. A method for installing a drive on a support element of an elevator installation, the method comprising the steps of: pre-installation of the drive and the drive suspension to form a drive/drive suspension unit; inserting the drive/drive suspension unit into the support element until an end position of the drive/drive suspension unit is reached and subsequently fastening the drive/drive suspension unit to the support element in the end position; and setting a tilt of the drive about a rotary joint of the drive suspension.

26. A drive/drive suspension unit for an elevator installation, the drive/drive suspension unit comprising: a drive; a drive suspension for fastening the drive to a support element of the elevator installation; wherein the drive suspension includes a rotary joint and an adjustment device, the rotary joint adapted to fasten the drive to the support element thereby enabling tiltably mounting the drive on the support element, and the adjustment device adapted to set a tilt of the drive about the rotary joint; wherein the rotary joint includes a fixing part and a first suspension part, the fixing part adapted to fasten to the support element and the first suspension part being fastened to the drive; wherein the fixing part and the first suspension part are rotatably connected to each other about an axis of rotation; wherein the adjustment device includes a second suspension part fastened to the drive and connected to the fixing part; wherein the fixing part and the second suspension part are displaceable relative to one another to set the tilt; wherein the drive has a horizontally extending shaft; and wherein the rotary joint is arranged above a horizontal shaft axis of the shaft, and wherein the adjustment device is arranged below the shaft axis.

Description

DESCRIPTION OF THE DRAWINGS

[0036] Various aspects of the invention are explained in more detail with reference to embodiments in conjunction with the drawings, in which:

[0037] FIG. 1 shows a schematic view of a preferred embodiment of a drive/drive suspension unit;

[0038] FIG. 2 shows a schematic sectional view of the embodiment shown in FIG. 1;

[0039] FIG. 3 shows a schematic view of a preferred embodiment of a drive system in which the drive/drive suspension unit shown in FIGS. 1 and 2 is installed;

[0040] FIG. 4 shows a schematic view of a preferred embodiment of an elevator installation;

[0041] FIG. 5 shows a schematic plan view of an elevator installation according to preferred embodiments; and

[0042] FIG. 6 shows a schematic representation of a preferred method for installing a drive on a support element of an elevator installation.

DETAILED DESCRIPTION

[0043] FIG. 1 shows a schematic view of a drive/drive suspension unit 2 according to a possible embodiment of the invention. The drive/drive suspension unit 2 comprises a drive 3 which is mounted via a drive suspension 7. FIG. 2 shows a schematic sectional view of the drive/drive suspension unit 2 from FIG. 1. The sectional view shows a section along a shaft axis 61 of a drive shaft 15 of the drive 3 parallel to a longitudinal axis of the guide rail (not shown, see FIG. 3). In FIGS. 1 and 2, the shaft axis 61 of the drive 3 is aligned at least substantially perpendicularly to the axis of rotation 31 of the rotary joint 9. In particular, the drive system 1 (not shown, see FIG. 3) is designed such that the shaft axis 61 runs at least substantially parallel to a drive-side side wall of an elevator car.

[0044] The drive suspension 7 comprises a rotary joint 9 for tiltably mounting the drive 3 on the support element 5. The rotary joint 9 comprises a fixing part 21 which can be fastened to the support element 5 (not shown, see FIG. 3). The fixing part 21 has an arc-like edge 22 which extends directly above the friction drive pulley 13. The rotary joint 9 also comprises a first suspension part 23 which is fastened to the drive 3. The first suspension part 23 is rigidly connected, in particular screwed, to the drive 3. In the embodiments shown, the first suspension part 23 has an opening 26 along the axis of rotation 31 of the rotary joint 9. As can be seen from FIGS. 1 and 2, the fixing part 21 has two openings along the axis of rotation 31 of the rotary joint 9. As shown for example in FIG. 2, the suspension part 23 extends between the two openings of the fixing part 21. The hinge-like interlocking of the fixing part 21 and the first suspension part 23 can, for example, increase the flexural rigidity of the rotary joint 9 with respect to torques perpendicular to the axis of rotation 31 of the rotary joint 9, in particular with respect to torques in the direction of the longitudinal axis of the support element 5 such as a guide rail. A connecting means 29 is arranged through the openings. In the embodiment shown, the connecting means 29 is designed as a bolt, in particular as a threaded bolt.

[0045] The drive suspension 7 comprises an adjustment device 11. The adjustment device 11 extends between the fixing part 21 and a second suspension part 41. The second suspension part 41 can be linearly displaced relative to the fixing part 21. In the embodiment of FIGS. 1, 2 and 3, the second suspension part 41 can be displaced relative to the fixing part 21 by rotating an adjustment screw 43 of the adjustment device 11. By displacing the second suspension part 41 relative to the fixing part 21, a tilt of the drive 3 about the axis of rotation 31 of the rotary joint 9 relative to the support element 5 can be set or adjusted. In particular, a tilt of the drive shaft 15 and a friction drive pulley 13 arranged on the drive shaft 15 relative to the support element 5 can also be set. Setting the tilt of the friction drive pulley 13 can prevent or reduce skewing of the belt, for example when using a belt as a carrier means.

[0046] The fixing part 21 is designed in at least two parts and has at least one first sheet metal part 25 and at least one second sheet metal part 27, wherein the first sheet metal part 25 is designed for fastening to the first suspension part 23 and for fastening to the support element 5. The second sheet metal part 27 is designed for fastening to the second suspension part 41. The first sheet metal part 25 and the second sheet metal part 27 are preferably connected to one another by rivets 28, wherein the second sheet metal part 27 is preferably designed as a U-profile.

[0047] The drive suspension 7 of the embodiment shown comprises a second isolation element 48 which is arranged between the first suspension part 23 and the fixing part 21 and between the second suspension part 41 and the fixing part 21. In particular, a first isolation element 47 is arranged around the connecting means 29 in the region of the openings of the first suspension part 23 and of the fixing part 21. The isolation elements 47, 48 are designed to reduce, in particular to damp, the propagation of vibrations or structure-borne noise from the drive 3 to the support element 5 (see FIG. 3).

[0048] In the embodiment shown, the drive 3 is designed as a gearless electric motor. The drive suspension 7 comprises an adapter plate 33 which is fastened to the electric motor. The first suspension part 23 and the second suspension part 41 are fastened to the drive 3 via the adapter plate 33.

[0049] FIG. 3 shows a view of the embodiment of the drive/drive suspension unit 2 installed to form a drive system 1, wherein the drive/drive suspension unit 2 is inserted into the support element 5 and fastened thereto. In FIG. 3, the support element 5 is designed as a guide rail for guiding an elevator car, wherein a possibility for inserting the fixing part 21 of the drive suspension 7 is provided in the end region of the guide rail 5. The fixing part 21 is rigidly connected to the support element 5.

[0050] FIGS. 4 and 5 show an embodiment of an elevator installation 51. The elevator installation 51 comprises a drive system 1 according to the embodiments described herein comprising a drive 3 and a drive suspension 7 for fastening the drive 3 to a support element 5. A guide rail for guiding an elevator car 53 is provided as the support element 5 in FIGS. 4 and 5. The elevator car 53 is connected to a counterweight 55 via a carrier means 57. The carrier means 57, for example a belt, is guided over a friction drive pulley 13 of the drive 3. The drive 3 is designed to drive the carrier means 57 and to move the elevator car 53 and the counterweight 55 vertically.

[0051] In FIGS. 4 and 5, the drive 3 is arranged in an upper end region of the elevator installation 51. As shown by way of example in the plan view of the elevator installation 51 in FIG. 5, a shaft axis 61 of the drive 3 is aligned at least substantially parallel to a drive-side side wall 63 of the elevator car 53. The axis of rotation 31 of a rotary joint of the drive suspension 7 is oriented at least substantially perpendicularly to the shaft axis 61 and at least substantially perpendicularly to a vertical direction. The tilt of the shaft axis 61 with respect to a vertical direction or with respect to the longitudinal axis of the guide rail 5 is set, for example, so as to be at least substantially perpendicular.

[0052] The elevator installation 51 of FIGS. 4 and 5 has a further drive system 71 according to the embodiments of a drive system described herein. The further drive system 71 comprises a further drive 73 and a further drive suspension 75 for fastening the further drive 73 to a further support element 79, which is formed by a further guide rail in FIGS. 4 and 5. The further drive 73 is designed to drive a further carrier means 81 which is connected to the elevator car 53 and a further counterweight 77. The use of a further drive system can allow the use of smaller or lighter drives. In particular, the space requirement of a drive in a shaft head or a shaft pit can be reduced. In addition, smaller or lighter drives can be installed more easily.

[0053] FIG. 6 shows a method 100 for mounting a drive on a support element of an elevator installation in an embodiment. At 110, the method 100 comprises pre-installation of the drive (3) and the drive suspension (7) to form a drive/drive suspension unit (2). A first suspension part and a second suspension part are fastened to the drive via an adapter plate. The drive is then positioned in such a way that a bolt is guided through openings of the first suspension part of the fixing part to form a hinge-like rotary joint. The bolt is fixed. The step can be carried out at the factory so that the fully pre-installed drive/drive suspension unit is available in the field.

[0054] After the pre-installation, the drive/drive suspension unit is inserted into the support element at 120 and, in an end position of the inserted state, the drive/drive suspension unit is fastened to the support element, for example by screwing.

[0055] At 130, a tilt of the drive about the rotary joint is set by rotating the adjustment screw. The tilt of the drive or the shaft axis of the drive is set in such a way that the shaft axis runs at least substantially perpendicularly to a vertical direction or such that a skewing of a belt is prevented or reduced.

[0056] In accordance with the provisions of the patent statutes, the present invention has been described in what is considered to represent its preferred embodiment. However, it should be noted that the invention can be practiced otherwise than as specifically illustrated and described without departing from its spirit or scope.