DEVICE FOR MOUNTING A DRIVE MOTOR OF A LIFT SYSTEM

Description

[0001] The present invention relates to a device for supporting a drive motor of an elevator system. The invention further relates to a method for mounting the device. It also relates to a system for supporting multiple drive motors of an elevator system and to an elevator system itself.

[0002] An elevator system, such as those used for transporting people and / or goods in buildings, may include a drive motor for raising and / or lowering the cabin and / or a counterweight connected to the cabin. Such a drive motor may, for example, be mounted on a support structure in the head of the shaft.

[0003] EP 2 361 214 B1 describes a support structure formed by a crossbeam arranged in the shaft and a longitudinal beam for supporting the crossbeam on a load-bearing element of the shaft.

[0004] US 6,006,865 describes a support structure that can be swung into the shaft for maintenance and repair purposes.

[0005] US 6,446,762 B1 describes a support structure in the form of a two-part frame that can be attached to an upper end of the shaft.

[0006] US 2004 / 0084251 A1 describes a support structure that can be attached to the upper end of a guide rail.

[0007] DE 10 2005 001964 B3 discloses a prior art device for supporting a drive motor of an elevator system, in which all vertical forces are deliberately diverted via the guide rail in order to relieve the shaft walls.

[0008] There may be a need for an alternative device for supporting a drive motor of an elevator system. Furthermore, there may be a need for a system for supporting multiple drive motors of an elevator system, for example, to allow the use of several smaller drive motors instead of a single larger drive motor to move the cabin.

[0009] These needs can be met by the subject matter of the independent claims. Advantageous embodiments are set forth in the dependent claims, the following description, and the accompanying figures.

[0010] A first aspect of the invention relates to a device for supporting a drive motor of an elevator system, comprising a shaft connecting several floors of a building and a cabin movable between the floors in the shaft by means of the drive motor. The device comprises a beam with a receptacle for attaching the drive motor to the beam, a bracket, and a support. The device is designed or configured such that, in the assembled state, the beam is attached at one of its ends to a side wall of the shaft, the receptacle is arranged on a section of the beam projecting into the shaft, and the bracket is attached to the side wall, in particular to the same side wall as the beam, and is arranged below the beam. The support braces the section of the beam projecting into the shaft against a section of the bracket that also projects into the shaft.

[0011] The device, when installed, can be located at least partially within a shaft head, i.e., at the upper end of the shaft. The height of the shaft head can, for example, correspond to the vertical distance between the shaft ceiling and the floor of the top story. However, other installation locations are also possible.

[0012] The shaft can, for example, be bounded by four different side walls, which can be arranged in pairs opposite each other. In other words, the shaft can have a rectangular cross-section. The support and the bracket can be attached to one of these four side walls when the device is assembled.

[0013] The support and / or bracket can be attached to the side wall, for example, by screws. Alternatively, one section of the support and / or bracket can be embedded in the side wall, for example, by being cast into it with concrete, while another section of the support or bracket protrudes from the side wall.

[0014] The mounting bracket can, for example, be located at a free end of the beam. The drive motor can then be attached to the beam via the mounting bracket in such a way that, viewed longitudinally, the drive motor projects beyond the free end of the beam in a direction away from the side wall. Alternatively, the mounting bracket can be located at another point on the beam, for example, between the free end and the (attached) end at which the beam is secured to the side wall when the device is installed.

[0015] The support can be designed to carry at least one additional drive component of the elevator system, for example a drive battery, a brake chopper, an elevator control system, a gearbox, a traction sheave and / or a deflection pulley.

[0016] The support can be designed to bear at least part of the weight of the carrier, which is attached to the side wall and carries the drive motor (and additionally one or more other drive components). In the assembled state of the device, the support can be connected to the carrier on one side and to the bracket on the other, for example by bolting and / or welding.

[0017] It is possible that the support has a horizontal longitudinal direction when the device is assembled and / or that the support has a vertical longitudinal direction when the device is assembled.

[0018] Because the support and the bracket are attached to the same side wall, the device can be installed more easily compared to support structures whose parts must be mounted on different side walls. This also allows for a more space-saving design.

[0019] A second aspect of the invention relates to a system for supporting multiple drive motors of an elevator system, which comprises a shaft connecting several floors of a building and a cabin that can be moved between the floors in the shaft by means of the drive motors. The system comprises several devices, each device being the device described above and below, and the support of each device having a receptacle for attaching one of the drive motors to the support.

[0020] In other words, the system can include a separate device for each drive motor. The devices can, for example, be mounted independently of each other.

[0021] It is possible that the supports are arranged at the same height in the shaft when the system is installed. Additionally or alternatively, the brackets can also be arranged at the same height in the shaft when the system is installed. However, an embodiment in which the height positions of the supports or brackets differ significantly is also conceivable.

[0022] Such a system allows for the simple and space-saving installation of multiple drive motors in the shaft, for example, in the shaft head. This means that instead of a single larger drive motor, several smaller drive motors can be used to move the cabin, which can have a positive impact on manufacturing costs and / or maintenance and / or repair expenses.

[0023] A third aspect of the invention relates to an elevator system comprising a shaft connecting several floors of a building and a cabin that can travel in the shaft between the floors.

[0024] The elevator system further comprises a drive motor for moving the cabin and the device described above and below, wherein the drive motor is attached to the support via the mounting.

[0025] Alternatively, the elevator system also includes several drive motors for moving the cabin and the system described above and below, wherein each drive motor is attached to one of the supports via one of the mounts.

[0026] Furthermore, the elevator system can include a counterweight coupled to the cabin via load-bearing elements, which is lowered when the cabin is lifted and raised when the cabin is lowered. The drive motor(s) can be designed to reposition the load-bearing elements.

[0027] A fourth aspect of the invention relates to a method for mounting a device for carrying a drive motor of an elevator system, in particular the device described above and below, wherein the elevator system comprises a shaft connecting several floors of a building and a cabin movable in the shaft between the floors by means of the drive motor.The method comprises the following steps: providing a bracket, a support, and a beam with a receptacle for attaching the drive motor to the beam; attaching the bracket and the beam at one of its ends to the side wall, in particular the same side wall, and / or the ceiling of the shaft, wherein the bracket attached to the side wall is arranged below the beam, in particular attached to the side wall, and the receptacle is arranged on a section of the beam, in particular attached to the side wall, projecting into the shaft; connecting the support to the beam and the bracket, such that the support braces the section of the beam projecting into the shaft against a section of the bracket projecting into the shaft.

[0028] The aforementioned steps can be performed in the specified order or in a different order than specified.

[0029] It should be noted that features of the device as described above and below may also be features of the method (and vice versa).

[0030] Embodiments of the invention can be considered to be based on the ideas and findings described below. These embodiments are not to be understood as limiting the scope of the invention.

[0031] According to one embodiment, the support can be formed by a longitudinal section of a guide rail for guiding the cabin along the shaft. In the assembled state of the device, this longitudinal section can be attached to the support on one side and to the console on the other. Thus, no additional component is required to support the support on the console.

[0032] According to one embodiment, the guide rail can be a hollow rail. Such a guide rail is particularly rigid and stable.

[0033] According to one embodiment, the longitudinal section can be an end section of the guide rail. In other words, the support can be arranged at an upper end of the guide rail when the device is assembled. For example, the support can rest on the upper end of the guide rail.

[0034] According to one embodiment, the bracket, when the device is assembled, can be anchored in a floor and / or on a side wall directly at the floor of one of the stories. The bracket can be connected to the floor directly and / or indirectly, i.e., via at least one connecting element, for example, in the form of a beam or a plate. The floor could, for example, be the floor of the uppermost story. This allows for a particularly stable attachment of the bracket to the side wall.

[0035] According to one embodiment, the support can rest on an upper end of the prop in the assembled state of the device. The upper end of the prop can then touch an underside of the support.

[0036] The underside of the support can also be connected to the upper end of the support via at least one connecting element, for example, in the form of an intermediate plate arranged between the support and the support. The connecting element can be attached to the support and / or the support in the assembled state of the device, for example, by bolting and / or welding. The connecting element can also include a mounting section for additionally securing the drive motor to the connecting element. This allows for statically determinate mounting of the drive motor at two bearing points: the mounting point on the support and the mounting section.

[0037] According to one embodiment, the device can further include an additional support which, in the assembled state, provides additional support to the section of the beam projecting into the shaft against the corresponding section of the bracket projecting into the shaft. Similar to the support, the additional support can be connected to the beam on one side and to the bracket on the other when the device is assembled. In the assembled state, the additional support can extend horizontally, at least partially, between the support and the side wall and / or vertically, at least partially, between the beam and the bracket. By using several supports, i.e., two or more than two, each support can be made lighter and / or simpler than if only a single support were used. This also makes the support more secure.

[0038] According to one embodiment, the device may further comprise a plate-like wall element which is designed such that, in the assembled state of the device, it extends at least sectionally between the support and the side wall.

[0039] According to one embodiment, the wall element can be designed such that, in the assembled state of the device, it conceals at least 50%, preferably at least 75%, of an area bounded horizontally by the support and the side wall, and vertically by the beam and the bracket. This can be advantageous for safety and / or aesthetic reasons.

[0040] According to one embodiment, the width of a section of the wall element extending between the support and the side wall can be at least 50%, preferably at least 75%, of the horizontal distance between the support and the side wall in the horizontal direction. This can be advantageous for reasons of weight and / or stability.

[0041] According to one embodiment, the wall element can have several recesses, each with a width of at least 25%, preferably at least 50%, of the width of the wall element, and / or each with a height of at least 10%, preferably at least 25%, of the height of the wall element. This can significantly reduce the weight of the wall element.

[0042] According to one embodiment, the wall element can be a sheet metal part. This allows for cost-effective manufacturing of the wall element.

[0043] According to one embodiment, the additional support can be formed by the wall element. Thus, besides the wall element, no further component is required to additionally support the beam at the bracket.

[0044] According to one embodiment, the end of the support attached to the side wall and / or ceiling can be secured to the side wall and / or ceiling via at least one vibration-damping intermediate piece. Such an intermediate piece can, for example, be or comprise a rubber component. This allows unwanted vibrations and / or noise during operation of the drive motor to be noticeably reduced or eliminated.

[0045] According to one embodiment, the supports of different devices can be attached to the same side wall of the shaft when the system is assembled. In other words, all supports and brackets of the system can be attached to the same side wall of the shaft.

[0046] Alternatively, at least one of the beams can be attached to a different side wall than the other beam(s) and / or at least one of the brackets can be attached to a different side wall than the other bracket(s).

[0047] According to one embodiment, the beams, when the system is assembled, can be connected to each other at their sections projecting into the shaft via at least one connecting element to form a frame. This connecting element can, for example, be plate-shaped or beam-shaped. Thus, the stiffness of the beams can be significantly increased with minimal design effort compared to designs where the beams are not connected to each other to form a frame.

[0048] Similarly, the consoles can be connected to each other in the assembled state of the system via a connecting part, for example, a plate- or beam-shaped component.

[0049] In this case, the brackets can be attached to the side wall via the (common) connecting piece. The connecting piece can also be designed to anchor the brackets in the floor of one of the stories (see above). For this purpose, the connecting piece can be at least partially attached to the floor, for example, to an end edge of the floor adjacent to the side wall or projecting into the shaft beyond the side wall.

[0050] The following describes embodiments of the invention with reference to the accompanying drawings. Neither the description nor the drawings are to be understood as limiting the scope of the invention. Fig. 1 shows a section of an elevator system according to an embodiment of the invention. Fig. 2 Figure 1 shows a system supporting two drive motors of an elevator system according to an embodiment of the invention in a perspective view. Fig. 3 Figure 1 shows a system supporting two drive motors of an elevator system according to an alternative embodiment of the invention in a perspective view. Fig. 4 shows a support of a device according to an embodiment of the invention, attached to a shaft wall via several vibration-damping intermediate pieces, in a top view.

[0051] The drawings are purely schematic and not to scale. If the same reference symbols are used in different drawings, these reference symbols denote identical or equivalent features.

[0052] Fig. 1 Figure 1 shows an elevator system 1, comprising a shaft 7 connecting several floors 3 of a building 5 and a cabin 11 that moves within the shaft 7 by means of a drive motor 9. The elevator system 1 also includes a device 13 for positioning the drive motor 9 in the shaft 7, here in a shaft head.

[0053] The device 13 comprises a support 15, a console 17 and a support 19. In the in Fig. 1 In the assembled state of the device 13 shown, the support 15 is attached with one of its ends to a side wall 21 of the shaft 7, so that a section of the support 15 projects from the side wall 21 into the shaft 7. In In this section, which has a horizontal longitudinal direction, the support 15 has a receptacle 23 for attaching the drive motor 9 to the support 15. As in Fig. 1 As shown, the inlet 23 can be located at a free end of the section of the support 15 projecting into shaft 7.

[0054] The console 17 is attached to the same side wall 21 as the beam 15 and lies below the beam 15. The console 17 can be located below and the beam 15 above a doorway through which the shaft 7 is accessible to persons from one of the floors 3.

[0055] The support 19 is connected on one side to the section of the beam 15 projecting into shaft 7 and on the other side to a section of the bracket 17 projecting into shaft 7, for example by bolting and / or welding. Thus, the beam 15 is supported on the bracket 17 via the support 19.

[0056] The drive motor 9 is attached to the support 15 via the mounting 23. In this example, the drive motor 9 is supported exclusively by the device 13, i.e., held in a defined position in the shaft 7. The mounting 23 may additionally be supported by the support 19 and / or the bracket 17.

[0057] The drive motor 9 can comprise a housing 25 and be attached to the mounting 23 via its housing 25. Additional drive components, such as a gearbox and / or a drive pulley for moving a lifting element 27 connected to the cabin 11 and / or a counterweight, can be arranged in and / or on the housing 25.

[0058] On the section of beam 15 projecting into shaft 7, for example between support 19 and side wall 21, an additional so-called power block 29 (also known as power block 29) can be installed. power block (called) be attached. Such a power block 29 may, for example, comprise a battery, a brake chopper, an elevator control unit, or a combination of at least two of these examples.

[0059] In this example, the support 19 is formed by a longitudinal section of a guide rail 19, preferably in the form of a hollow rail, for guiding the cabin 11 longitudinally in the shaft 7. The support beam 15 can rest on the upper end of the guide rail 19, as shown here. The guide rail 19 can be designed to additionally support the console 17.

[0060] The bracket 17 can be anchored in a floor 33 of one of the floors 3, here the top floor 3. Alternatively or additionally, the bracket 17 can be anchored in a section of the side wall 21 located outside the floor 33, for example, adjacent to the floor 33.

[0061] The elevator system 1 can also comprise two or more than two (preferably identical) examples of the device 13 described above, which then form a system 35 for supporting two or more than two drive motors 9 of the elevator system 1 (see Fig. 2 and Fig. 3 Each of the drive motors 9 can be connected to one of the supports 15 via one of the receptacles 23, i.e., each drive motor 9 can be supported by its own device 13.

[0062] As in Fig. 2 and Fig. 3 As can be seen, the supports 15 of the system 35 can be connected to each other at their sections projecting into the shaft 7 via at least one connecting part 37, here in the form of a connecting plate, to form a particularly torsionally rigid frame.

[0063] Similarly, the brackets 17 of the system 35 can be connected to one another via at least one connecting element, here in the form of a crossbeam 39. In this example, each bracket 17 is connected at one of its ends to the crossbeam 39, which at the other end can be attached to the side wall 21, preferably anchored in the floor 33. At its other end, the bracket 17 is connected to one of the supports 19, here to one of the guide rails 19.

[0064] It is possible that each beam 15 is supported by an additional support 41 on the respective bracket 17, the additional support 41 being attached on one side to the section of the beam 15 projecting into the shaft 7 and on the other side to the section of the bracket 17 projecting into the shaft. Furthermore, the additional support 41 can be attached to the support 19 and / or the side wall 21.

[0065] The additional support 41 can, as in Fig. 2 shown to be designed as a mostly closed, plate-like wall element 41 in the form of a sheet metal part, which in the assembled state of the device 13 covers a large part, i.e. at least 50% or even at least 75% of an area which is bounded in the horizontal direction by the support 19 and the side wall 21 and in the vertical direction by the beam 15 and the console 17.

[0066] In this case, a section of the wall element 41 extending between the support 19 and the side wall 21 can have a width that is at least 50% or even at least 75% of a horizontal distance A (see Fig. 1 ) the distance of support 19 to side wall 21.

[0067] As in Fig. 3 As shown, the wall element 41 can have several (here three) relatively large recesses 43 for reasons of weight and / or stability, the respective width of which can be at least 25% or even at least 50% of the width of the wall element 41 (or the distance A) and / or the respective height of which can be at least 10% or even at least 25% of the height of the wall element 41 (or a vertical distance of the bracket 17 to the support 15).

[0068] The supports 15 of different devices 13 can be arranged at the same height in shaft 7 when the system 35 is assembled. Additionally or alternatively, the brackets 17 of different devices 13 can be arranged at the same height in shaft 7 when the system 35 is assembled.

[0069] The cabin 11 can be arranged between the supports 19 or guide rails 19 in the assembled state of the system 35.

[0070] As in Fig. 4As shown, the support 15 can also be coupled to the side wall 21 at its fixed end via at least one vibration-damping intermediate piece 59. In this example, the support 15 has a flange 61 at its fixed end, which can be bolted to a counter plate 63 attached to the side wall 21. When bolted together, the flange 61 and the counter plate 63 do not directly touch, but are coupled to each other via several intermediate pieces 59. The intermediate pieces 59 can, for example, be designed as rubber spacers, each of which can have a screw passing through it.

[0071] Finally, it should be noted that terms such as "have," "comprise," "include," "with," etc., do not exclude other elements or steps, and indefinite articles such as "a" or "an" do not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the foregoing embodiments may also be used in combination with features or steps described with reference to other of the foregoing embodiments. Reference numerals in the claims are not to be understood as limiting the scope of the subject matter defined by the claims.

Claims

1. Device (13) for carrying a drive motor (9) of an elevator system (1), wherein the elevator system (1) comprises a shaft (7) connecting several storeys (3) of a building (5) and a cabin (11) movable in the shaft (7) between the storeys (3) by means of the drive motor (9), wherein the device (13) comprises a carrier (15) with a receptacle (23) for fastening the drive motor (9) to the carrier (15), a bracket (17), and a support (19); wherein the device (13) is designed such that, in the assembled state of the device (13), the carrier (15) is fastened by one of its ends to a side wall (21) and / or ceiling of the shaft (7), the receptacle (23) is arranged on a portion, projecting into the shaft (7), of the carrier (15), the bracket (17) is fastened to the side wall (21), in particular to the same side wall (21) as the carrier (15), and is arranged below the carrier (15), and the support (19) supports the portion, projecting into the shaft (7), of the carrier (15) on a portion, projecting into the shaft (7), of the bracket (17).

2. Device (13) according to claim 1, wherein the support (19) is formed by a longitudinal portion of a guide rail (19) for guiding the cabin (11) in the longitudinal direction of the shaft (7).

3. Device (13) according to claim 2, wherein the guide rail (19) is a hollow rail; and / or wherein the longitudinal portion is an end portion of the guide rail (19).

4. Device (13) according to any of the preceding claims, wherein the bracket (17) is anchored in a floor (33) and / or on a side wall directly at the floor of one of the storeys (3), in particular at the top storey, in the assembled state of the device (13).

5. Device (13) according to any of the preceding claims, wherein the carrier (15) rests on an upper end of the support (19) in the assembled state of the device (13).

6. Device (13) according to any of the preceding claims, further comprising: an additional support (41) for additionally supporting the portion, projecting into the shaft (7), of the carrier (15) on the portion, projecting into the shaft (7), of the bracket (17).

7. Device (13) according to any of the preceding claims, further comprising: a plate-like wall element (41) which is designed such that, in the assembled state of the device (13), it extends at least in portions between the support (19) and the side wall (21); wherein the wall element (41) is designed such that, in the assembled state of the device (13), it covers at least 50%, preferably at least 75%, of an area which is delimited in the horizontal direction by the support (19) and the side wall (21), and in the vertical direction by the carrier (15) and the bracket (17); and / or wherein a width of a portion of the wall element (41) extending between the support (19) and the side wall (21) in the horizontal direction is at least 50%, preferably at least 75%, of a horizontal distance (A) of the support (19) to the side wall (21); and / or wherein the wall element (41) has a plurality of recesses (43), the respective width of which is at least 25%, preferably at least 50%, of a width of the wall element (41), and / or the respective height of which is at least 10%, preferably at least 25%, of a height of the wall element (41); and / or wherein the wall element (41) is a sheet metal part.

8. Device (13) according to claim 7, referring back to claim 6, wherein the additional support (41) is formed by the wall element (41).

9. Device (13) according to any of the preceding claims, wherein the end, fastened to the side wall (21) and / or the ceiling, of the carrier (15) is fastened to the side wall (21) and / or the ceiling via at least one vibration-damping, intermediate piece (59).

10. System (35) for carrying a plurality of drive motors (9) of an elevator system (1), wherein the elevator system (1) comprises a shaft (7) connecting several storeys (3) of a building (5) and a cabin (11) movable in the shaft (7) between the storeys (3) by means of the drive motors (9), wherein the system (35) comprises: a plurality of devices (13) according to any of the preceding claims, wherein the carrier (15) of each device (13) has a receptacle (23) for fastening one of the drive motors (9) to the carrier (15).

11. System (35) according to claim 10, wherein the carriers (15) of different devices (13) are fastened to the same side wall (21) of the shaft (7) in the assembled state of the system (35).

12. System (35) according to claim 10 or 11, wherein the carriers (15) in the assembled state of the system (35), at their portions projecting into the shaft (7), are connected to one another, via at least one connecting part (37), to form a frame.

13. Elevator system (1), comprising: a shaft (7) connecting several storeys (3) of a building (5); a cabin (11) which is movable in a shaft (7) between the storeys (3); wherein the elevator system (1) further comprises: a drive motor (9) for moving the cabin (11); and the device (13) according to any of claims 1 to 9, wherein the drive motor (9) is fastened to the carrier (15) via the receptacle (23); or wherein the elevator system (1) further comprises: a plurality of drive motors (9) for moving the cabin (11); and the system (35) according to any of claims 10 to 12, wherein each drive motor (9) is fastened to one of the carriers (15) via one of the receptacles (23).

14. Method for mounting a device (13) for carrying a drive motor (9) of an elevator system (1), in particular the device (13) according to any of claims 1 to 9, wherein the elevator system (1) comprises a shaft (7) connecting several storeys (3) of a building (5) and a cabin (11) movable in the shaft (7) between the storeys (3) by means of the drive motor (9), wherein the method comprises: providing a bracket (17), a support (19), and a carrier (15) with a receptacle (23) for fastening the drive motor (9) to the carrier (15); fastening the bracket (17) and the carrier (15) with one of its ends to the side wall (21), in particular the same side wall, and / or the ceiling of the shaft (7), wherein the bracket (17) fastened to the side wall (21) is arranged below the carrier (15), in particular the carrier fastened to the side wall (21), and the receptacle (23) is arranged on a portion, projecting into the shaft (7), of the carrier (15), in particular the carrier fastened to the side wall (21); connecting the support (19) to the carrier (15) and the bracket (17) such that the support (19) supports the portion, projecting into the shaft (7), of the carrier (15) on a portion, projecting into the shaft (7), of the bracket (17).