Drive system for an elevator installation, elevator installation and method for installing a drive on a supporting element of an elevator installation

Abstract

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, the drive suspension (7) comprising a rotary joint (9) for tiltably mounting the drive (3) to the support element (5) and an adjustment device (11) for setting the inclination of the drive (3) around the rotary joint (9).

Description

[Technical field]

[0001] The present invention relates to a drive system for an elevator installation, to an elevator installation and to a method for installing a drive on a supporting element of an elevator installation. [Background technology]

[0002] Known elevator installations for transporting people or luggage include an elevator car that can be moved vertically in an elevator shaft. The elevator car is usually connected to a counterweight via a carrier means. A drive for moving the elevator car along a guide rail can be arranged, for example, on a drive assembly in the shaft head of the elevator shaft or in a machine room above the elevator shaft. However, drive systems for elevator installations known so far require a lot of space, for example in the shaft head of the elevator installation, or are complicated to install. Summary of the Invention [Problem to be solved by the invention]

[0003] The object of the invention is to describe in detail a drive system for an elevator installation which is improved compared to drive systems or elevator installations known from the prior art, in particular in that the space required for the drive system is reduced or the assembly of the drive system is simplified. Another object of the invention is to describe in detail a method for installing a drive for an elevator installation. [Means for solving the problem]

[0004] This object is achieved by a drive system according to claim 1 and a method according to the additional independent claim. Advantageous developments and embodiments can be found in the dependent claims and in the present description.

[0005] 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, the drive suspension comprising a revolute joint by which the drive can be fastened to the support element and designed for tiltably mounting the drive to the support element, and an adjustment device for setting the inclination of the drive about the revolute joint.

[0006] A further aspect of the invention relates to an elevator installation comprising a drive system according to any of the embodiments described herein and an elevator car and a counterweight connected to the elevator car via a carrier means, the drive being designed to drive the carrier means.

[0007] Yet another aspect of the invention relates to a method for installing a drive on a support element of an elevator installation, comprising the steps of mounting the drive on the support element by means of a revolute joint, stabilizing the drive relative to the support element and setting the inclination of the drive about the revolute joint.

[0008] In a preferred embodiment, 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 the shaft axis of the drive. A friction drive pulley of the drive can be fastened to the drive shaft. The friction drive pulley is designed to provide contact between the carrier means of the elevator installation and the drive. In particular, the friction drive pulley is designed to transmit the force provided by the drive to the carrier means. The drive suspension is preferably designed in such a way that when the drive is fastened to the support element, the friction drive pulley is located between the motor of the drive and the support element.

[0009] Preferably, the drive system is designed to include a generally horizontally extending shaft or shaft axis in an installed state with a friction drive pulley formed within the shaft.

[0010] Preferably, the rotary joint is arranged above a shaft axis extending substantially horizontally, and the adjustment device is arranged below the shaft axis.

[0011] The drive system preferably comprises a guide rail for guiding the elevator car, which guide rail forms a support element. In a further preferred embodiment, the support element may be a shaft wall of the elevator installation or a conveying structure in the elevator shaft of the elevator installation.

[0012] In a preferred embodiment, the revolute joint of the drive suspension should be understood as a rotatable connection between the drive and the support element. The rotation axis of the revolute joint is preferably at least approximately perpendicular to the shaft axis of the drive. "At least approximately perpendicular" should be understood here in particular to mean a vertical orientation or an orientation that deviates from the vertical orientation by at most 15°, for example at most 10°, or at most 5°. In an embodiment, the rotation axis can be aligned at least approximately perpendicular to the shaft axis of the drive and perpendicular to the longitudinal axis of the guide rail. The shaft axis of the drive can be aligned at least approximately perpendicular to the rotation axis of the revolute joint and at least approximately perpendicular to the vertical direction, for example perpendicular to the longitudinal axis of the guide rail. In a preferred embodiment, the shaft axis of the drive is aligned with the guide rail.

[0013] The adjusting device is preferably arranged below the rotary joint. The rotary joint is especially designed to transmit tensile loads from the drive to the support element. The adjusting device is, for example, designed to transmit compressive loads from the drive to the support element. In an embodiment, the rotary joint is arranged above the friction drive pulley of the drive and the adjusting device is arranged below the friction drive pulley. In particular, the friction drive pulley is arranged between the rotary joint and the adjusting device. In a further embodiment, the adjusting device is arranged around the friction drive pulley. For example, the adjusting device can extend in the form of a cage around the friction drive pulley in the direction of the support element, the adjusting device having at least one window for the passage of the carrier means. In a preferred embodiment, the friction drive pulley has a friction drive pulley diameter of at most 150 mm, in particular at most 100 mm, or at most 70 mm.

[0014] In a preferred embodiment, the rotary joint of the drive suspension comprises a fixed part designed to be fastened to a support element and a first suspension part fastened to the drive part. The fixed part and the first suspension part are connected to each other rotatably about a rotation axis. The fixed part is preferably rigidly connected to the support element and the first suspension part is rigidly connected to the drive part. The rigid connection can be brought about by a joining method, for example by screwing.

[0015] Preferably, the fixing part is designed with at least one arcuate edge, which in the installed state extends directly above the friction drive pulley.

[0016] The arcuate edge has the advantage that the forces acting on the edge (due to the weight of the drive and the cabin, which in the installed state are suspended from the friction drive pulley via the support means) are distributed uniformly over the edge. Thus, in comparison with a less advantageous rectangular design, a concentration of forces can be avoided at the intersection of the edges extending at right angles to one another. Furthermore, by arranging the arcuate edge directly above the friction drive pulley, a kind of arcuate overvoltage can be formed, which extends in an arc from one radial end of the friction drive pulley towards the other end of the friction drive pulley. The distance between the arcuate edge and the friction surface of the friction drive pulley therefore increases, at least initially, from one radial end to the other radial end. The arcuate edge therefore forms a lateral boundary directly above the friction surface, which starts at the radial end of the friction drive pulley. A lateral movement of the support means is therefore prevented by the edge. This prevents the carrier means from flying out onto the friction drive pulley without an additional edge provided for this purpose.

[0017] Preferably, the fastening part and the support element are designed in such a way that the fastening part can be partially inserted into the support element and can be fastened to the support element in an end position in the inserted state.

[0018] As a result, the drive and the drive suspension can already be supplied as a pre-assembled drive / drive suspension unit, which can be easily inserted on site into openings provided for this purpose in the support element and fastened in the end position in the inserted state. The relatively complex installation of the drive / drive suspension unit can thus be decoupled from the installation on site. In this way, in particular the revolute joints, which are relatively complex to install, do not have to be installed on site. The ability of fine adjustment of the orientation of the friction drive pulley can thus be combined with an easy installation of the drive (and the drive suspension) on site.

[0019] In a preferred embodiment, the first suspension part has at least one first opening and the fixed part has at least one second opening. The revolute joint comprises a connecting element guided 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 rotation axis of the revolute joint.

[0020] In a preferred embodiment, the axis of rotation is located directly over the center of the friction drive pulley, resulting in self-alignment of the friction drive pulley when the weight of the drive is ignored.

[0021] In a preferred embodiment, the revolute joint is designed as a hinge. In an embodiment, the first suspension part has at least one first opening along the rotation axis of the revolute joint. The fixed part has at least two second openings along the rotation axis of the revolute joint. The first suspension part extends between the at least two second openings of the fixed part, and the at least one first opening of the first suspension part is arranged between the two second openings of the fixed part.

[0022] In a preferred embodiment, the revolute joint is designed to support a torque or a torque component in a direction perpendicular to the axis of rotation. In particular, the revolute joint is designed to support a torque or a torque component in the direction of the shaft axis of the drive or in the direction of the longitudinal axis of the 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, the contact surfaces extending around the axis of rotation, in particular around the axis of rotation perpendicular to the axis of rotation. In particular, the fixed part and the first suspension part can form a torque support. For example, the revolute joint can at least partially support a torque or a torque component resulting from the drive of the carrier means or from the movement of the elevator car or the counterweight.

[0023] Preferably, the adjustment device of the drive suspension comprises a fixed part designed for fastening to the support element and a second suspension part fastened to the drive part and connected to the fixed part. The fixed part and the second suspension part are displaceable relative to each other in a settable manner. The adjustment device can in particular be designed as a linear adjustment device. The adjustment device can comprise an adjustment screw, which is designed to displace the fixed part and the second suspension part relative to each other, in particular to move them linearly relative to each other, by rotating the adjustment screw. The second suspension part is preferably rigidly connected to the drive part and the fixed part is rigidly connected to the support element.

[0024] In a preferred embodiment, the inclination of the drive part around the revolute joint can be set by displacing the second suspension part relative to the fixed part. For example, the inclination can be set by rotating an adjustment screw of the adjustment device, by rotating the adjustment screw the second suspension part is displaced relative to the fixed part. In particular, the drive suspension is designed to incline the drive part about the axis of rotation of the revolute joint relative to the support element, for example relative to the guide rail, by the displacement. In particular, a maximum inclination of 20°, for example a maximum of 10°, or a maximum of 5° can be set by the displacement. In an embodiment, the fixed part is part of the revolute joint and the adjustment device.

[0025] The drive suspension preferably comprises at least one first isolation element, in particular a mechanical isolation element or buffer element, the at least first isolation element being configured to reduce or prevent the transmission of vibrations or structure-borne noise from the drive to the support element, the first isolation element being preferably attached to the rotary joint, the drive suspension preferably having a second isolation element, the second isolation element being preferably attached to the adjustment device. The isolation element is preferably a spring-damping element. The drive can be isolated from the support element with respect to the transmission of vibrations or structure-borne noise by the isolation element. In particular, the isolation element is designed to damp vibrations or structure-borne noise between the drive and the support element. The isolation element can be arranged between the first suspension part and the fixed part or between the second suspension part and the fixed part. The connection means is arranged to pass through at least one first opening of the first suspension part and at least one second opening of the fixed part, and is preferably at least partially enveloped by the first isolation element. In particular, the connection means is surrounded by a separating 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 an embodiment, the at least one separating element comprises plastic or rubber. The at least one separating element may provide the advantage that the spread of structure-borne noise into a building in which an elevator installation comprising a drive system according to an embodiment described herein is installed is prevented.

[0026] In a preferred embodiment, the drive suspension, in particular the first suspension part or the second suspension part, comprises an adapter plate designed to fasten the drive suspension to the suspension-side end of the drive part. The adapter plate is rigidly connected to the drive part, for example by screwing. The adapter plate can have a shaft opening for the drive shaft of the drive part to pass through. In an embodiment, the adapter plate is manufactured as a separate component. In a further embodiment, the adapter plate is manufactured as part of the first suspension part or as part of the second suspension part. In particular, the first suspension part and the second suspension part including the adapter plate can be manufactured in one piece.

[0027] According to an embodiment, an elevator installation comprises a drive system according to any of the embodiments described herein. The elevator installation comprises an elevator car. The elevator car is designed to be moved along a guide rail. The elevator installation comprises a counterweight connected to the elevator car via a carrier means. The guide rail is preferably arranged between the elevator car and the counterweight. The drive is designed to drive the carrier means. As a result of the carrier means being driven, the elevator car and the counterweight can be moved vertically, for example in mutually opposite vertical directions. Directional statements with respect to "upwards", "downwards", "horizontal" or "vertical" are to be understood here in particular with respect to the direction of gravity.

[0028] In a preferred embodiment, the drive is arranged in the upper end region of the elevator installation. The upper end region of the elevator installation should be understood to mean, for example, the vertical region of the elevator installation, the vertical region corresponding to the upper 30%, in particular the upper 20% or the upper 10% of the height of the elevator installation. For example, the drive can be arranged in a low shaft head. In particular, the elevator installation can be designed without a machine room.

[0029] The carrier means preferably comprises a belt. For example, the belt may be made of a coated cord, such as a coated steel cable. In cross section, the belt has a width greater than the thickness of the belt. For example, by setting the inclination of the drive relative to the support element, belt skew or uneven loading of the belt can be prevented or reduced. In particular, the inclination can be readjusted over the life of the elevator installation. In a further embodiment, the carrier means comprises at least one cable, for example at least one steel cable.

[0030] In an elevator installation according to a preferred embodiment, the elevator car has a drive-side sidewall facing the drive system, and the shaft axis of the drive runs at least approximately parallel to the drive-side sidewall. "At least approximately parallel" should be understood here in particular to mean a parallel alignment or an alignment that deviates from the parallel alignment by at most 20°, for example at most 10°, or at most 5°. In particular, the friction drive pulley of the drive can be arranged between the counterweight and the elevator car in the plan view of the elevator installation.

[0031] A preferred embodiment includes at least one further drive system. In particular, the elevator installation includes at least one further drive system according to the embodiments described herein. The drive system and the at least one further drive system can be arranged on both sides of the elevator car. The at least one further drive system preferably drives a further carrier means connected to the elevator car, in particular to a further counterweight. The use of at least two drive systems can provide the advantage that a smaller or lighter drive can be used. In particular, the required space for the drive system can be reduced. For example, in the plan view of the elevator installation, the drive can be arranged between the elevator car and the shaft wall or the counterweight.

[0032] A preferred embodiment of the installation method comprises a pre-assembly of the drive part and the drive suspension to form a drive suspension unit. This is done by fastening the first suspension part of the drive suspension to the drive part and the fixed part to the first suspension part. It thus comprises connecting the first suspension part to the fixed part to form a rotation joint of the drive suspension. For example, the drive part together with the first suspension part can be arranged relative to the fixed part in such a way that the openings of the first suspension part and the openings of the fixed part are arranged along the rotation axis of the formed rotation joint. Then, a connecting means, for example a pin, a bolt or a screw, can be guided or placed through the openings to form the rotation joint. This method step is preferably already carried out during manufacturing in the factory. The second suspension part, which is connected to the fixed part, is also preferably already installed in the factory, so that a tilt-adjustable drive suspension unit is provided on site.

[0033] The method preferably further comprises the step of inserting a pre-assembled drive suspension unit into the support element until an end position is reached and subsequently fastening the drive suspension unit to the support element (5), for example by means of screws.

[0034] The method preferably comprises setting the tilt and aligning the drive part with respect to the support element by displacing the second suspension part with respect to the fixed part. The displacement can be performed by rotating an adjusting screw of the adjusting device. In particular, the tilt about the rotation axis of the rotary joint is set. In a preferred method, the drive part is installed on a guide rail as a support element.

[0035] The preferred embodiments can offer the advantage over the prior art that the drive can be installed space-savingly on a support element, for example on a guide rail. In particular, according to the preferred embodiments, the drive system can be installed without a superstructure on or above the guide rail or without a machine room. The drive system according to the preferred embodiments can be installed in elevator shafts with a low shaft head. In particular, according to the embodiments, the drive system can comprise a particularly small or light drive. The preferred embodiments can also offer the advantage that the inclination of the drive relative to the support element can be set. In particular, if belts are used as carrier means, skews can be prevented or reduced. The inclination can be readjusted over the life of the elevator installation.

[0036] Various aspects of the invention will now be explained in more detail with reference to embodiments in conjunction with the drawings. [Brief description of the drawings]

[0037] [Figure 1] FIG. 1 is a schematic diagram of a preferred embodiment of a drive section / drive suspension unit. [Diagram 2] FIG. 2 is a schematic cross-sectional view of the embodiment shown in FIG. [Diagram 3] FIG. 3 is a schematic diagram of a preferred embodiment of a drive system in which the drive / drive suspension unit shown in FIGS. 1 and 2 is installed. [Figure 4] FIG. 1 is a schematic diagram of a preferred embodiment of an elevator installation; [Diagram 5] FIG. 1 is a schematic plan view of an elevator installation according to a preferred embodiment. [Figure 6] FIG. 2 shows a schematic diagram of a preferred method for mounting the drive on a support element of an elevator installation. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] 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 mounted via a drive suspension 7. FIG. 2 shows a schematic cross-sectional view of the drive / drive suspension unit 2 of FIG. 1. The cross-sectional view shows a cross-section along a shaft axis 61 of the drive shaft 15 of the drive 3 parallel to the 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 approximately perpendicular to the rotation axis 31 of the revolute joint 9. In particular, the drive system 1 is designed such that the shaft axis 61 runs at least approximately parallel to the drive-side sidewall of the elevator car.

[0039] The drive suspension 7 comprises a revolute joint 9 for tiltably mounting the drive 3 to the support element 5. The revolute joint 9 comprises a fixed part 21 that can be fastened to the support element 5 (not shown, see FIG. 3). The fixed part 21 has an arcuate edge 22 that extends directly above the friction drive pulley 13. The revolute joint 9 also comprises a first suspension part 23 that is fastened to the drive 3. The first suspension part 23 is rigidly connected to the drive 3, in particular by screwing. In the illustrated embodiment, the first suspension part 23 has an opening along the rotation axis 31 of the revolute joint 9. As can be seen from FIGS. 1 and 2, the fixed part 21 has two openings along the rotation axis 31 of the revolute joint 9. As shown for example in FIG. 2, the suspension part 23 extends between the two openings of the fixed part 21. The hinge-like connection between the fixed part and the first suspension part makes it possible to increase the bending stiffness of the revolute joint 9, for example with respect to torques perpendicular to the axis of rotation 31 of the revolute 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 opening. In the illustrated embodiment the connecting means 29 is designed as a bolt, in particular a threaded bolt.

[0040] The drive suspension 7 comprises an adjustment device 11. The adjustment device 11 comprises a fixed part 21 and a second suspension part 41. The second suspension part 41 can be displaced linearly relative to the fixed part 21. In the embodiment of Fig. 1, 2 and 3, the second suspension part 41 can be displaced relative to the fixed part 21 by rotating an adjustment screw 43 of the adjustment device 11. By displacing the second suspension part 41 relative to the fixed part 21, the inclination 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, the inclination of the drive shaft 15 and of the friction drive pulley 13 arranged on the drive shaft 15 relative to the support element 5 can also be set. By setting the inclination of the friction drive pulley 13, for example, in case of using a belt as the carrier means, a skew of the belt can be prevented or reduced.

[0041] The drive suspension 7 in the illustrated embodiment comprises a second decoupling 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, the first decoupling element 47 is arranged around the connection means 29 in the region of the opening of the first suspension part 23 and the fixed part 21. The decoupling elements 47, 48 are designed to reduce, in particular to damp, the transmission of vibrations or structure-borne noise from the drive 3 to the support element 5 (see FIG. 3 ).

[0042] 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.

[0043] 3 shows a diagram of an embodiment of a drive / drive suspension unit 2 installed to form a drive system 1, which is inserted into and fastened to a support element 5. In FIG. 3, the support element is designed as a guide rail for guiding the elevator car, and a possibility is provided in the end region of the guide rail 5 for inserting a fixing part 21 of the drive suspension 7. The fixing part 21 is rigidly connected to the support element 5.

[0044] 4 and 5 show an embodiment of an elevator installation 51. The elevator installation 51 comprises a drive system 1 according to the embodiment described herein, which comprises a drive 3 and a drive suspension 7 for fastening the drive 3 to a support element 5. In FIGS. 4 and 5, as support element 5, a guide rail is provided, which guides an elevator car 53. 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 on a friction drive pulley 13 of the drive 3. The drive 3 is designed to drive the carrier means 57 and thus to move the elevator car 53 and the counterweight 55 vertically.

[0045] In Figures 4 and 5, the drive 7 is arranged in the upper end region of the elevator installation 51. As shown by way of example in the plan view of the elevator installation 51 in Figure 5, the shaft axis 61 of the drive 3 is aligned at least approximately parallel to the drive-side side wall 63 of the elevator car 53. The rotation axis 31 of the revolute joint of the drive suspension 7 is oriented at least approximately perpendicular to the shaft axis 61 and at least approximately perpendicular to the vertical direction. The inclination of the shaft axis 61 with respect to the vertical or longitudinal axis of the guide rail is, for example, set to be at least approximately perpendicular.

[0046] The elevator installation 51 of figures 4 and 5 has a further drive system 71 according to the embodiment of the 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 formed by the further guide rail of figures 4 and 5. The further drive 73 is designed to drive a further carrier means 81 connected to the elevator car 53 and to a further counterweight 77. The use of the further drive system can allow the use of a smaller or lighter drive. In particular, the required space for the drive in the shaft head or shaft pit can be reduced. Furthermore, the smaller or lighter drive can be installed more easily.

[0047] FIG. 6 shows a method 100 for mounting a drive on a support element of an elevator installation in one embodiment. The method 100 comprises, at 110, pre-assembling a drive (3) and a 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 the bolt is guided through an opening of the first suspension part of the fixed part to form a hinge-like rotary joint. The bolt is fixed. This step can be performed in the factory so that a completely pre-assembled drive / drive suspension unit is available on site.

[0048] After pre-assembly, the drive / drive suspension unit is inserted into the support element at 120 and in the end position of the inserted state the drive / drive suspension unit is fastened to the support element, for example by means of screw fastenings.

[0049] At 130, the inclination of the drive about the revolute joint is set by rotating an adjustment screw. The inclination of the drive or drive shaft axis is set so that the shaft axis extends at least approximately perpendicular to the vertical direction or such that belt skew is prevented or reduced.

Claims

1. A drive system (1) for elevator equipment, comprising: a drive device (3); a drive suspension (7) for fastening the drive device (3) to a support element (5) of the elevator equipment; characterized in that the drive suspension (7) comprises: - a rotary joint (9) designed to fasten the drive device (3) to the support element (5) and to tiltably attach the drive device (3) to the support element (5); - an adjustment device (11) for setting the tilt of the drive device (3) around the rotary joint (9); wherein the rotary joint (9) comprises: a fixing part (21) designed to be fastened to the support element (5); a first suspension part (23) fastened to the drive device (3); wherein the fixing part (21) and the first suspension part (23) are rotatably connected to each other about a rotation axis (31); the adjustment device (11) comprises: a second suspension part (41) fastened to the drive device (3) and connected to the fixing part (21); the fixing part (21) and the second suspension part (41) are displaceable relative to each other in a settable manner; the fixing part (21) is designed in at least two parts and has at least one first metal sheet part (25) and at least one second metal sheet part (27), the first metal sheet part (25) being designed to be fastened to the first suspension part (23) and to the support element (5), the second metal sheet part (27) being designed to be fastened to the second suspension part (41), the first metal sheet part (25) and the second metal sheet part (27) being preferably connected to each other by a rivet (28), and the second metal sheet part (27) being preferably designed in a U-shaped profile. A drive system (1) for elevator equipment.

2. The drive system (1) according to claim 1, characterized in that in the installed state, it is designed to comprise a substantially horizontally extending shaft or shaft line (61) having a friction drive pulley (13) formed in the shaft.

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

4. The drive system (1) according to claim 1, comprising a guide rail for guiding an elevator car, the guide rail forming a support element (5).

5. The drive system (1) according to claim 1, wherein the fixing part (21) is designed to have at least one arcuate edge part (22), and the arcuate edge part (22) preferably extends directly above the friction drive pulley (13) in the installed state.

6. The drive system (1) according to claim 1, wherein the fixing part (21) and the support element (5) are designed such that the fixing part (21) can be partially inserted into the support element (5) and fastened to the support element (5) at the end position in the inserted state.

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

8. The drive system (1) according to claim 1, wherein the inclination of the drive device (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 suspension (7) comprises at least one first separating element (47), the first separating element (47) being configured to reduce or prevent the transmission of vibrations or structure-borne noise from the drive device (3) to the support element (5), the first separating element (47) being preferably attached to the rotary joint 9, the drive suspension preferably having a second separating element (48), the second separating element (48) being preferably attached to the adjusting device (11), the drive system (1) according to claim 1.

10. An elevator installation (51), comprising the drive system (1) according to any one of claims 1 to 9, an elevator car (53), a counterweight (55) connected to the elevator car (53) via carrier means (57), characterized in that the drive device (3) is designed to drive the carrier means (57), the elevator installation (51).

11. The drive device (3) is arranged in the upper end region of the elevator installation (51) and preferably comprises at least one further drive system (71), 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 the shaft axis (61) of the drive part preferably extends at least substantially parallel to the drive-side side wall (63), the elevator installation (51) according to claim 10.

12. A method for installing a drive device (3) on a support element (5) of an elevator installation (51), in particular the elevator installation (51) according to claim 10, pre-assembling the drive device (3) and the drive suspension (7) in order to form a drive part / drive suspension unit (2); inserting the pre-assembled drive suspension unit (2) into the support element (5) until it reaches the end position and subsequently fastening the drive suspension unit (2) to the support element (5); setting the inclination of the drive device (3) about the rotary joint (9); comprising the method.

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