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

Description

[0001] The invention relates to a drive system for an elevator installation, an elevator installation and a method for mounting a drive on a support element of an elevator installation.

[0002] Known elevator systems for transporting people or loads comprise an elevator car that can be moved vertically in an elevator shaft. The elevator car is typically connected to a counterweight via a suspension element. A drive for moving the elevator car along a guide rail can be arranged, for example, on a drive structure in the headroom of the elevator shaft or in a machine room above the elevator shaft. However, previously known drive systems for elevator systems require a lot of space, for example, in the headroom of an elevator system, or require complex installation.

[0003] US6006865 discloses the preamble of claim 1.

[0004] The object of the invention is to provide a drive system for an elevator installation, and in particular an elevator installation, which is improved over drive systems or elevator installations known from the prior art, wherein, in particular, the space requirement of the drive system is to be reduced or the assembly of the drive system is to be simplified. Furthermore, the object of the invention is to provide a method for assembling a drive of an elevator installation.

[0005] This object is achieved with a drive system according to claim 1 and a method according to the independent claim. Advantageous further developments and embodiments emerge from the subclaims and from this description.

[0006] One aspect of the invention relates to a drive system for an elevator installation, comprising a drive and a drive suspension for fastening the drive to a support element of the elevator installation, wherein the drive suspension comprises a rotary joint via which the drive can be fastened to the support element and which is designed for tiltable mounting of the drive on the support element and an adjusting device for adjusting the tilting of the drive about the rotary joint.

[0007] A further aspect of the invention relates to an elevator installation, comprising a drive system according to one of the embodiments described herein, an elevator car, and a counterweight which is connected to the elevator car via a support means, wherein the drive is configured to drive the support means.

[0008] Yet another aspect of the invention relates to a method for mounting a drive on a support element of an elevator installation, comprising mounting the drive on the support element by means of a rotary joint, stabilizing the drive with respect to the support element, and adjusting a tilt of the drive about the rotary joint.

[0009] In preferred embodiments, the drive comprises a motor, in particular a motor and a gear. The drive can be gearless. The drive has a drive shaft. The drive shaft is rotatable about a shaft axis of the drive. A traction sheave of the drive can be attached to the drive shaft. The traction sheave is designed to provide contact between a support means of an elevator installation and the drive. In particular, the traction sheave is designed to transmit a force provided by the drive to the support means. Preferably, the drive suspension is designed such that, when the drive is attached to the support element, the traction sheave is arranged between the motor of the drive and the support element.

[0010] Preferably, the drive system is designed such that, in the assembled state, it comprises a substantially horizontally extending shaft or shaft axis with a drive pulley formed in the shaft.

[0011] Preferably, the rotary joint is arranged above the substantially horizontal shaft axis and the adjusting device is arranged below the shaft axis.

[0012] The drive system preferably comprises a guide rail for guiding an elevator car, wherein the guide rail forms the support element. In further preferred embodiments, the support element can be a shaft wall of an elevator system or a support structure in an elevator shaft of an elevator system.

[0013] In preferred embodiments, the rotary joint of the drive suspension is to be understood as a rotatably movable connection between the drive and the support element. Preferably, a rotational axis of the rotary joint is at least substantially perpendicular to a shaft axis of the drive. "At least substantially perpendicular" is to be understood herein as meaning, in particular, a perpendicular orientation or an orientation deviating from a perpendicular orientation by a maximum of 15°, for example, by a maximum of 10° or a maximum of 5°. In embodiments, the rotational axis can be oriented at least substantially perpendicular to the shaft axis of the drive and perpendicular to a longitudinal axis of a guide rail. The shaft axis of the drive can be oriented at least substantially perpendicular to the rotational axis of the rotary joint and at least substantially perpendicular to a vertical direction, for example, perpendicular to the longitudinal axis of a guide rail.In preferred embodiments, the shaft axis of the drive is aligned with the guide rail.

[0014] The adjustment device is preferably arranged below the rotary joint. The rotary joint is designed in particular to transfer a tensile load from the drive to the support element. The adjustment device is designed, for example, to transfer a compressive load from the drive to the support element. In embodiments, the rotary joint is arranged above a drive pulley of the drive and the adjustment device below the drive pulley. In particular, the drive pulley is arranged between the rotary joint and the adjustment device. In further embodiments, the adjustment device is arranged around the drive pulley. For example, the adjustment device can extend in a cage-like manner around the drive pulley in the direction of the support element, wherein the adjustment device has at least one window for the passage of a support means.In preferred embodiments, the traction sheave has a traction sheave diameter of at most 150 mm, in particular of at most 100 mm or of at most 70 mm.

[0015] According to the claim, the swivel joint of the drive suspension comprises a fixed part configured for attachment to the support element and a first suspension part attached to the drive. The fixed part and the first suspension part are connected to one another so as to be rotatable about a rotation axis. Preferably, the fixed part is rigidly connected to the support element, and the first suspension part is rigidly connected to the drive. Rigid connections can be provided by joining methods, for example, by screwing.

[0016] The fixed part is designed in at least two parts and comprises at least a first sheet metal part and at least a second sheet metal part. The first sheet metal part is designed for attachment to the first suspension part and for attachment to the support element. The second sheet metal part is designed for attachment to the second suspension part. The first sheet metal part and the second sheet metal part are preferably connected to one another by rivets, with the second sheet metal part preferably being designed as a U-profile.

[0017] Preferably, the fixed part is designed such that it has at least one curved edge, wherein the curved edge runs directly above a drive pulley in the assembled state.

[0018] The advantage of the curved edge is that the forces acting on the edge (due to the weight of the drive and the car, which is suspended from the traction sheave via a support element when installed) are distributed evenly across the edge. In comparison to a less advantageous rectangular design, this prevents a concentration of forces at the intersection point of the edges running at right angles to one another. Furthermore, the direct arrangement of the curved edge above the traction sheave creates a type of curved span that extends in an arc from one radial end of the traction sheave to the other. The distance between the curved edge and the traction surface of the traction sheave thus increases, at least initially, from one radial end to the other.The curved edge forms a lateral boundary that begins at the radial end of the traction sheave, directly above the traction surface. The edge prevents the suspension element from drifting sideways. Suspension element jumps can thus be prevented without the need for additional edges on the traction sheave.

[0019] Preferably, the fixed part and the support element are designed such that the fixed part can be partially inserted into the support element and can be fastened to the support element in an end position of the inserted state.

[0020] This allows the drive and drive suspension to be delivered as a pre-assembled drive-drive suspension unit and to be easily inserted into a designated opening in the support element and secured in the final inserted position. The relatively complex assembly of the drive-drive suspension unit can thus be separated from the assembly in the field. In particular, the relatively complex swivel joint does not need to be installed in the field. This allows the functionality of fine-tuning the alignment of the traction sheave to be combined with simple installation of the drive (and drive suspension) in the field.

[0021] In preferred embodiments, the first suspension part has at least one first opening, and the fixed part has at least one second opening. The pivot joint comprises a connecting element that extends through the at least one first opening and the at least one second opening. The connecting element can be, for example, a pin, a bolt, or a screw. In particular, the connecting element is arranged along the axis of rotation of the pivot joint.

[0022] In a preferred embodiment, the axis of rotation is arranged exactly above the center of the traction sheave, so that if the weight of the drive is neglected, the traction sheave is automatically aligned.

[0023] In preferred embodiments, the pivot joint is designed as a hinge. In embodiments, the first suspension part has at least one first opening along the rotation axis of the pivot joint. The fixed part has at least two second openings along the rotation axis of the pivot joint. The first suspension part extends between the at least two second openings of the fixed part, wherein the at least one first opening of the first suspension part is arranged between two second openings of the fixed part.

[0024] In preferred embodiments, the rotary joint is configured to support torques or torque components in directions perpendicular to the axis of rotation.

[0025] In particular, the rotary joint is designed to support torques or torque components in the direction of the shaft axis of the drive or in the direction of the longitudinal axis of a guide rail. The fixed part and the first suspension part can be in contact along the axis of rotation via at least two contact surfaces, wherein the contact surfaces extend around the axis of rotation, in particular around the axis of rotation and perpendicular to the axis of rotation. In particular, the fixed part and the first suspension part can form a torque support. For example, the rotary joint can at least partially support torques or torque components resulting from the driving of a support means or the movement of an elevator car or a counterweight.

[0026] The adjustment device of the drive suspension preferably comprises a fixed part which is designed for attachment to the support element, and a second suspension part which is attached to the drive and connected to the fixed part. The fixed part and the second suspension part are adjustably displaceable relative to one another. The adjustment device can in particular be designed as a linear adjustment device. The adjustment device can comprise an adjusting screw, wherein the adjustment device is designed to displace the fixed part and the second suspension part relative to one another, in particular to displace them linearly relative to one another, by turning the adjusting screw. Preferably, the second suspension part is rigidly connected to the drive and the fixed part is rigidly connected to the support element.

[0027] In preferred embodiments, the tilt of the drive about the rotary joint is adjustable by moving the second suspension part relative to the fixed part. For example, the tilt can be adjusted by turning an adjusting screw of the adjustment device, wherein turning the adjusting screw moves the second suspension part relative to the fixed part. In particular, the drive suspension is configured to tilt the drive about the axis of rotation of the rotary joint relative to the support element, for example relative to a guide rail, by moving it. In particular, a tilt of a maximum of 20°, for example a maximum of 10° or a maximum of 5°, can be adjusted by moving it. In embodiments, the fixed part is part of the rotary joint and the adjustment device.

[0028] The drive suspension preferably comprises at least one first insulation element, in particular a mechanical insulation element or a buffer element, wherein the at least first insulation element is designed to reduce or prevent the transmission of vibrations or structure-borne noise from the drive to the support element, wherein the first insulation element is preferably attached to the pivot joint, wherein the drive suspension preferably has a second insulation element, wherein the second insulation element is preferably attached to the adjusting device. Preferably, the insulation element(s) is / are a spring-damping element. The drive can be decoupled from the support element by the insulation elements with regard to the propagation of vibrations or structure-borne noise. In particular, the insulation elements are designed to dampen vibrations or structure-borne noise between the drive and the support element.The insulation elements can be arranged between a first suspension part and a fixed part or between a second suspension part and a fixed part. Preferably, a connecting means arranged through at least one first opening in the first suspension part and at least one second opening in the fixed part is at least partially enclosed by the first insulation element. In particular, the connecting means is surrounded by the insulation element in the region of the at least one first opening, for example in the region of the at least one first opening and the at least one second opening. In embodiments, the at least one insulation element comprises plastic or rubber. The at least one insulation element can offer the advantage of preventing the propagation of structure-borne sound to a building in which an elevator installation with a drive system according to the embodiments described herein is installed.

[0029] In preferred embodiments, the drive suspension, in particular the first suspension part or the second suspension part, comprises an adapter plate which is designed to fasten the drive suspension to a suspension-side end of the drive. The adapter plate is rigidly connected to the drive, for example, by screwing. The adapter plate can have a shaft opening for passing a drive shaft of the drive. In embodiments, the adapter plate is manufactured as a separate component. In further embodiments, the adapter plate is manufactured as part of the first suspension part or the second suspension part. In particular, the first suspension part and the second suspension part, including the adapter plate, can be manufactured as a single piece.

[0030] According to embodiments, an elevator installation comprises a drive system according to one of the embodiments described herein. The elevator installation comprises an elevator car. The elevator car is configured to be moved along a guide rail. The elevator installation comprises a counterweight connected to the elevator car via a support means. Preferably, the guide rail is arranged between the elevator car and the counterweight. The drive is configured to drive the support means. By driving the support means, the elevator car and the counterweight can be moved vertically, for example, in opposite vertical directions. Directional references to "up," "down," "horizontal," or "vertical" are to be understood herein in particular with reference to the direction of the weight force.

[0031] In preferred embodiments, the drive is arranged in an upper end region of the elevator system. An upper end region of the elevator system is understood, for example, to be a vertical region of the elevator system, wherein the vertical region corresponds to the upper 30%, in particular the upper 20% or the upper 10%, of the height of the elevator system. For example, the drive can be arranged in a low shaft headroom. In particular, the elevator system can be designed without a machine room.

[0032] The suspension element preferably comprises a belt. A belt can be made, for example, from sheathed cables, for example from sheathed steel cables. The belt has a cross-sectional width that is greater than a thickness of the belt. For example, adjusting a tilt of the drive relative to the support element can prevent or reduce skewed belt running or uneven loading of the belt. In particular, the tilt can be readjusted over the course of the service life of the elevator system. In further embodiments, the suspension element comprises at least one cable, for example at least one steel cable.

[0033] In elevator systems according to preferred embodiments, the elevator car has a drive-side side wall facing the drive system, and a shaft axis of the drive runs at least substantially parallel to the drive-side side wall. "At least substantially parallel" is understood herein to mean, in particular, a parallel alignment or an alignment deviating from a parallel alignment by a maximum of 20°, for example, by a maximum of 10° or a maximum of 5°. In particular, a traction sheave of the drive can be arranged between the counterweight and the elevator car in a plan view of the elevator system.

[0034] Preferred embodiments comprise at least one further drive system. In particular, elevator systems comprise at least one further drive system according to embodiments described herein. The drive system and the at least one further drive system can be arranged on opposite sides of the elevator car. Preferably, the at least one further drive system drives a further support means which is connected to the elevator car and in particular to a further counterweight. The use of at least two drive systems can offer the advantage that smaller or lighter drives can be used. In particular, the space requirement of a drive system can be reduced. For example, in a plan view of the elevator system, a drive can be arranged between the elevator car and a shaft wall or a counterweight.

[0035] In preferred embodiments of the assembly method, pre-assembly of the drive and the drive suspension to form a drive-drive suspension unit is carried out. This is achieved by attaching a first suspension part of a drive suspension to the drive and attaching a fixed part to the first suspension part. It therefore comprises connecting the first suspension part to the fixed part to form a rotary joint of the drive suspension. For example, the drive can be arranged with the first suspension part relative to the fixed part such that the openings of the first suspension part and the fixed part are arranged along the axis of rotation of the rotary joint to be formed. Subsequently, a connecting means, for example a pin, a bolt, or a screw, can be guided or arranged through the openings to form the rotary joint. This method step is preferably carried out during production in the factory.The second suspension part connected to the fixed part is also preferably already attached in the factory, so that a drive drive suspension unit is available in the field, in which a tilt can be adjusted.

[0036] The method preferably further comprises the step of inserting the pre-assembled drive-drive suspension unit into the support element until an end position is reached and then fastening the drive-drive suspension unit to the support element (5), for example by screwing.

[0037] Preferably, the method further comprises adjusting a tilt, aligning the drive relative to the support element by displacing the second suspension part relative to the fixed part. The displacement can be achieved by turning an adjusting screw of the adjustment device. In particular, a tilt about the rotation axis of the swivel joint is adjusted. In preferred methods, the drive is mounted on a guide rail as a support element.

[0038] Preferred embodiments can offer the advantage over the prior art that a drive can be mounted in a space-saving manner on a support element, for example on a guide rail. In particular, drive systems according to preferred embodiments can be mounted without superstructures on or above the guide rail or without a machine room. Drive systems according to preferred embodiments can be installed in elevator shafts with low shaft heads. In particular, according to embodiments, drive systems can be equipped with particularly small or lightweight drives. Preferred embodiments can further offer the advantage that tilting of the drive with respect to the support element can be adjusted. In particular, when a belt is used as the suspension element, skew can be avoided or reduced. The tilt can be readjusted over the course of the service life of the elevator system.

[0039] Various aspects of the invention are explained in more detail below using exemplary embodiments in conjunction with the figures, in which the figures show: Fig. 1 is a schematic view of a preferred embodiment of a drive-drive suspension unit; Fig. 2 is a schematic sectional view of the Figure 1 shown embodiment; Fig. 3 is a schematic view of a preferred embodiment of a drive system in which the Figure 1 and 2 shown drive-drive suspension unit is installed; Fig. 4 is a schematic view of a preferred embodiment of an elevator installation; Fig. 5 is a schematic plan view of an elevator installation according to preferred embodiments; and Fig. 6 is a schematic representation of a preferred method for mounting a drive on a support element of an elevator installation.

[0040] Fig. 1shows 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 attached via a drive suspension 7. Fig. 2 shows a schematic sectional view of the drive drive suspension unit 2 from Figure 1 . The sectional view shows a section along a shaft axis 61 of a drive shaft 15 of the drive 3 and parallel to a longitudinal axis of the guide rail (not shown, see Figure 3 ). In the Figures 1 and 2 The shaft axis 61 of the drive 3 is aligned at least substantially perpendicular to the rotational axis 31 of the rotary joint 9. In particular, the drive system 1 is configured such that the shaft axis 61 runs at least substantially parallel to a drive-side side wall of an elevator car.

[0041] The drive suspension 7 comprises a pivot joint 9 for tiltably supporting the drive 3 on the support element 5. The pivot joint 9 comprises a fixed part 21 which is fixed to the support element 5 (not shown, see Figure 3 ) is attachable. The fixed part 21 has an arcuate edge 22, which runs directly above the drive pulley 13. The rotary joint 9 further comprises a first suspension part 23, which is attached to the drive 3. The first suspension part 23 is rigidly connected to the drive 3, in particular screwed. In the embodiments shown, the first suspension part 23 has an opening along the rotation axis 31 of the rotary joint 9. As can be seen from Figure 1 and 2 As can be seen, the fixed part 21 has two openings along the axis of rotation 31 of the swivel joint 9. As for example in Fig. 2As shown, the suspension part 23 extends between the two openings of the fixed part 21. The hinge-like engagement of the fixed part and the first suspension part can, for example, increase the flexural rigidity of the swivel joint 9 with respect to torques perpendicular to the rotational axis 31 of the swivel joint 9, in particular with respect to torques in the direction of the longitudinal axis of the 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.

[0042] The fixed part is constructed in two parts and comprises a first sheet metal part (25) and a second sheet metal part (27), wherein the first sheet metal part (25) is designed for attachment to the first suspension part (23) and for attachment to the support element (5), and wherein the second sheet metal part (27) is designed for attachment 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). The second sheet metal part (27) is designed as a U-profile.

[0043] The drive suspension 7 comprises an adjusting device 11. The adjusting device 11 comprises the fixed part 21 and a second suspension part 41. The second suspension part 41 can be linearly displaced relative to the fixed part 21. In the embodiment of the Fig. 1 , 2 and 3The second suspension part 41 can be displaced relative to the fixed part 21 by turning an adjusting screw 43 of the adjusting device 11. By displacing the second suspension part 41 relative to the fixed 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 drive pulley 13 arranged on the drive shaft 15 relative to the support element 5 can also be adjusted. Adjusting a tilt of the drive pulley 13 can, for example, prevent or reduce skew of the belt when using a belt as a support means.

[0044] The drive suspension 7 of the embodiment shown comprises a second insulation element 48, which is arranged between the first suspension part 23 and the fixed part 21 and between the second suspension part 41 and the fixed part 21. In particular, a first insulation element 47 is arranged around the connecting means 29 in the region of the openings of the first suspension part 23 and the fixed part 21. The insulation elements 47, 48 are designed to prevent the propagation of vibrations or structure-borne noise from the drive 3 to the support element 5 (see Figure 3 ), especially to dampen.

[0045] 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 attached to the electric motor. The first suspension part 23 and the second suspension part 41 are attached to the drive 3 via the adapter plate 33.

[0046] Fig. 3shows a view of the embodiment of the drive-drive suspension unit 2 installed in a drive system 1, wherein the drive-drive suspension unit 2 is inserted into the support element 5 and fastened thereto. In the Fig. 3 The support element is designed as a guide rail for guiding an elevator car, and an insertion option for the fixed part 21 of the drive suspension 7 is provided in the end region of the guide rail 5. The fixed part 21 is rigidly connected to the support element 5.

[0047] The Figures 4 and 5 show an exemplary embodiment of an elevator installation 51. The elevator installation 51 comprises a drive system 1 according to embodiments described herein with a drive 3 and a drive suspension 7 for fastening the drive 3 to a support element 5. As support element 5 in the Figures 4 and 5A guide rail is provided for guiding an elevator car 53. The elevator car 53 is connected to a counterweight 55 via a support member 57. The support member 57, for example a belt, is guided over a traction sheave 13 of the drive 3. The drive 3 is configured to drive the support member 57 and to move the elevator car 53 and the counterweight 55 vertically.

[0048] In the Figures 4 and 5 The drive 7 is arranged in an upper end region of the elevator system 51. As shown by way of example in the plan view of the elevator system 51 in Fig. 5As shown, 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 rotation axis 31 of a rotary joint of the drive suspension 7 is aligned at least substantially perpendicular to the shaft axis 61 and at least substantially perpendicular 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 is set, for example, at least substantially vertically.

[0049] The elevator system 51 of the Figures 4 and 5 has a further drive system 71 according to 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 in the Figures 4 and 5by a further guide rail. The further drive 73 is configured to drive a further support means 81 which is connected to the elevator car 53 and a further counterweight 77. The use of a further drive system can enable the use of smaller or lighter drives. In particular, the space required by a drive in a shaft head or shaft pit can be reduced. Furthermore, smaller or lighter drives can be installed more easily.

[0050] Fig. 6shows a method 100 for mounting a drive to a support element of an elevator installation in an exemplary embodiment. At 110, the method 100 comprises pre-assembling 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 such that a bolt is guided through openings in the first suspension part of the fixed part to form a hinge-like pivot joint. The bolt is fixed. This step can be carried out in the factory so that the fully pre-assembled drive-drive suspension unit is available in the field.

[0051] After pre-assembly, 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, e.g. by screwing.

[0052] At 130, the tilt of the drive about the pivot joint is adjusted by turning the adjusting screw. The tilt of the drive or the drive shaft axis is adjusted so that the shaft axis is at least substantially perpendicular to a vertical direction or so that skew of a belt is avoided or reduced.

Claims

1. A drive system (1) for an elevator installation, comprising a drive (3), and a drive suspension (7) for fastening the drive (3) to a support element (5) of the elevator installation, wherein the drive suspension (7) comprises: - a rotary joint (9), by means of which the drive (3) can be fastened to the support element (5) and which is designed for tiltably mounting the drive (3) on the support element (5); and - an adjustment device (11) for setting the tilt of the drive (3) about the rotary joint (9), wherein the rotary joint (9) comprises: a fixing part (21) which is designed for fastening to the support element (5); and a first suspension part (23) which is fastened to the drive (3); wherein the fixing part (21) and the first suspension part (23) are rotatably connected to each other about an axis of rotation (31), wherein the adjustment device (11) comprises: a second suspension part (41) which is fastened to the drive (3) and connected to the fixing part (21); wherein the fixing part (21) and the second suspension part (41) are displaceable relative to one another in a settable manner. wherein the fixed 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), wherein the second sheet metal part (27) is designed for fastening to the second suspension part (41), wherein 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.

2. The drive system (1) according to any of the preceding claims, wherein the drive system (1) is designed such that, in the installed state, it comprises a substantially horizontally extending shaft or shaft axis (61) having a friction drive pulley (13) formed in the shaft.

3. The drive system (1) according to claim 2, wherein the rotary joint (9) is arranged above the substantially horizontal shaft axis (61); and wherein the adjustment device (11) is arranged below the shaft axis (61).

4. The drive system (1) according to any of the preceding claims, 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 of the preceding claims, wherein the fixed part (21) is designed such that it has at least one arc-like edge (22), wherein the arc-like edge (22) preferably extends directly above a friction drive pulley (13) in the installed state.

6. The drive system (1) according to any of the preceding claims, wherein the fixed part (21) and the support element (5) are designed such that the fixed part (21) can be partially inserted into the support element (5) and can be fastened to the support element (5) in an end position of the inserted state.

7. The drive system (1) according to any of the preceding claims, wherein the first suspension part (23) has at least one first opening and the fixing part (21) has at least one second opening; and wherein the rotary joint (9) comprises a connecting element (29) which is guided through the at least one first opening and the at least one second opening.

8. The drive system (1) according to any of the preceding claims, wherein the tilt of the drive (3) about the rotary joint (9) can be set by displacing the second suspension part (41) relative to the fixing part (21).

9. The drive system (1) according to any of the preceding claims, wherein the drive suspension (7) comprises at least one first isolation element (47), wherein the first isolation element (47) is configured to reduce or prevent the transmission of vibrations or structure-borne noise from the drive (3) to the support element (5), wherein the first isolation element (47) is preferably attached to the rotary joint 9, wherein the drive suspension preferably has a second isolation element (48), wherein the second isolation element (48) is preferably attached to the adjustment device (11).

10. An elevator installation (51), comprising a drive system (1) according to any of the preceding claims; an elevator car (53); and a counterweight (55) which is connected to the elevator car (53) via a carrier means (57); wherein the drive (3) is designed to drive the carrier means (57).

11. The elevator installation (51) according to claim 10, wherein the drive (3) is arranged in an upper end region of the elevator installation (51) and preferably comprises at least one further drive system (71), wherein the carrier means (57) preferably comprises a belt, the elevator car (53) preferably has a drive-side side wall (63) facing the drive system (1); and wherein a shaft axis (61) of the drive preferably extends at least substantially parallel to the drive-side side wall (63), wherein the elevator installation (51)12. A method for installing a drive (3) on a support element (5) of an elevator installation (51), according to any of claim 10 or 11, comprising pre-installation of the drive (3) and the drive suspension (7) to form a drive / drive suspension unit (2); inserting the pre-installed drive suspension unit (2) into the support element (5) until an end position is reached and subsequently fastening the drive suspension unit (2) to the support element (5); and setting a tilt of the drive (3) about the rotary joint (9).