Conveyor drive system

Abstract

A conveyor drive system (1) for an industrial conveyor installation, comprising: a pulley shaft (2); a gearless motor (20) including a motor shaft (22) and a motor housing having a mounting portion (24); a base frame (10) for supporting the motor (20); a first alignment portion (31); a support structure (40); a second alignment portion (32); a connection portion (50) connecting the base frame (TO) to the second support member (42); and a coupling (60) gearless coupling the motor shaft (22) to the pulley shaft (2) and compensating for misalignment between the motor shaft (22) and the pulley shaft (2).

Description

Technical Field

[0001] The present invention relates to a conveyor drive system, in particular for use in industrial conveyor facilities, such as for mining or other bulk material handling applications, and to a method of installing the conveyor drive system. In particular, the present invention relates to a conveyor drive system having a gearless motor and a method of installing the same. Background Art

[0002] Conveyor drive systems using gearless motors are known. One type of conveyor drive system using a gearless motor is a conveyor drive system using a shaft mounted gearless motor, for example, as disclosed in EP 3767802A1. In such a system, the gearless motor is mounted on a pulley shaft driving the conveyor belt so that the pulley shaft supports the gearless motor. In this way, a good alignment between the pulley shaft and the gearless motor can be obtained simply and quickly.

[0003] However, in systems with shaft-mounted motors, the pulley shaft and its support must be made strong enough to support the motor. In particular, when installing a gearless motor on an existing conveyor drive system, it may be necessary to modify the existing structure of the drive system, for example by reinforcing the pulley shafts, bearings and other components of the conveyor installation. This can be time consuming and expensive.

[0004] Other conveyor drive systems may use a motor mounted on a foundation with an integrated steel floor interface or mounted on a steel base frame. Because the motor is not mounted on the pulley shaft, the alignment of the motor shaft and the pulley shaft becomes critical. For example, adjustment may be obtained using a permanent and dedicated adjustment device (such as a spindle or eccentric jack) to adjust the entire frame. An example of such a system is disclosed in EP 2727861A1.

[0005] In such systems, aligning the motor shaft with the pulley shaft is difficult and time consuming. However, when installing a drive unit, for example in a mining environment, alignment may have to be performed in adverse ambient conditions, and time is often of the essence. Therefore, quick and easy alignment and installation is therefore desirable.

[0006] Problem to be solved

[0007] The present invention is made to overcome the above problems of the prior art. Specifically, the object of the present invention is to provide a conveyor drive system including a gearless motor, which does not require major modifications to the conveyor facilities and also allows the gearless motor to be relatively easily and quickly aligned with the pulley shaft. Summary of the invention

[0008] The objects of the invention are achieved by a conveyor drive system, an industrial conveyor installation, and a method of installing a conveyor drive system as described in the claims.

[0009] One aspect of the present invention is a conveyor drive system for an industrial conveyor facility, the conveyor drive system comprising: a pulley shaft configured to drive a conveyor belt of the conveyor facility; a gearless motor for gearlessly driving the pulley shaft, the motor comprising a motor shaft and a motor housing having a mounting portion; a base frame for supporting the motor; a first alignment portion, wherein the motor is mounted on the base frame using its mounting portion, the first alignment portion being provided between the mounting portion and the base frame for at least vertically adjusting the motor relative to the base frame; a support structure configured to support the base frame, the support structure comprising a first support member and a second support member, the first support member and the second support member being spaced apart from each other in a direction perpendicular to the axial direction of the motor shaft; a second alignment portion, disposed between the first support member and the base frame, for at least vertically adjusting the base frame relative to the first support member; a connecting portion connecting the base frame to the second support member; and a coupling for gearlessly coupling the motor shaft to the pulley shaft.

[0010] Another aspect of the invention is an industrial conveyor installation having a conveyor belt and a conveyor drive system as described above.

[0011] Another aspect of the present invention is a method for installing the conveyor drive system of the present invention in an industrial conveyor facility, the method comprising the following steps: (a) installing a support structure including a first support member and a second support member to a conveyor facility frame of the conveyor facility; (b) positioning a base frame on which a motor is mounted to be aligned with the first support member, and connecting the base frame to the second support member via a connecting portion; (c) adjusting the second alignment portion for coarsely aligning the motor shaft with the pulley shaft, and installing the base frame to the first support member via the second alignment portion; (d) adjusting the first alignment portion for fine alignment of the motor shaft with the pulley shaft; and (e) coupling the motor shaft to the pulley shaft via a coupling.

[0012] The advantage of these aspects is that an easy and fast alignment of the gearless motor with the pulley shaft becomes possible, in particular due to the coupling between the first alignment portion and the second alignment portion and the motor shaft and the pulley shaft. Therefore, the motor shaft can be aligned with the pulley shaft in multiple stages. For example, the second alignment portion provided between the support structure (first support member) and the base frame can be used to adjust the base frame and the motor mounted thereon relative to the support structure so as to achieve an initial alignment (with an initial tolerance) of the motor shaft with the pulley shaft. Then, the first alignment portion provided between the motor (mounting portion) and the base frame can be used to adjust the motor relative to the base frame so as to improve the alignment of the motor shaft with the pulley shaft, for example, the tolerance is reduced to a residual tolerance. This reduced residual tolerance (which may also include unavoidable load or temperature-related misalignments during operation) can then be small enough to be compensated by a coupling that gearlessly couples the motor shaft to the pulley shaft.

[0013] The conveyor drive system of the present invention can be applied to industrial conveyor facilities having a conveyor belt and a conveyor drive system for driving the conveyor belt via a pulley shaft. It can be applied to heavy conveyor facilities, preferably mining conveyor facilities, or medium-power mining conveyor systems.

[0014] For example, the conveyor may have a single motor power of 200 kW to less than 2500 kW, but the motor power may also be 2500 kW or more, and preferably not more than 10 MW or less. The conveyor may be operated, for example, in an open pit mine or underground mine, such as in a mine pit or an overland conveyor. The conveyor may be applied to bulk material handling operations, such as storage, material handling terminals or processing plants.

[0015] The gearless motor may be a low speed torque motor. An example of a low speed gearless motor is a motor with a rated speed of 30-130 rpm, and preferably not more than 200 rpm. Examples of types of gearless motors that may be used are permanent magnet types, synchronous motor types with external excitation, induction motor types, liquid cooled motors, or air cooled motors.

[0016] The gearless motor may be an electric motor, and it may include a rotor and a stator. The rotor may be co-rotatingly (rigidly) coupled to the motor shaft. The motor may be a permanent magnet motor, a synchronous motor, or an induction motor.

[0017] The housing of the gearless motor includes a mounting portion. The mounting portion can be positioned at the bottom of the motor. For example, the feet can be in the lower half of the motor frame and / or can be raised to the horizontal axis of symmetry. In other words, the feet can be raised to the height of the motor shaft. The mounting portion can include at least one foot. Any number of feet can be used, but preferably 3 or 4 feet. A height adjustment member, such as one or more pads, can be arranged below each foot.

[0018] The base frame supports the motor. The base frame may be made of a material such as steel. The platform or surface of the base frame supporting the motor may be arranged substantially horizontally (eg, less than 15° from the horizontal plane).

[0019] Because the frame supports the motor, the pulley shaft of the conveyor facility and the structure supporting the pulley shaft do not require additional reinforcements. Preferably, the pulley shaft supports 50%, preferably less than 10%, more preferably less than 5% of the weight of the gearless motor or the total weight of the gearless motor and the base frame. More preferably, the weight of the motor and the base frame is substantially completely supported by the support structure. Thereby, a coupling that compensates for misalignment between the motor shaft and the pulley shaft, such as a flexible coupling, can be used.

[0020] The first alignment portion is disposed between the mounting portion and the base frame of the gearless motor. The first alignment portion allows the motor to be adjusted at least vertically relative to the base frame. The first alignment portion may include a height adjustment member. The height adjustment member may allow adjustment in discrete steps, such as one or more shims. The shim may be inserted between the mounting portion and the base frame for alignment of the motor. Alternatively, the height adjustment member may allow continuous adjustment, such as a hydraulic adjustment member. In the method for installing a conveyor drive system, an initial height adjustment member that allows continuous adjustment may be replaced by a discrete height adjustment member (such as a shim) during installation. More generally, the first alignment portion may also include shims or hydraulic devices, spindles or screws, to allow at least vertical and optionally horizontal adjustment of the motor.

[0021] The first alignment portion may be arranged below the mounting portion, preferably directly below and / or in direct contact with the mounting portion. For example, if the first alignment portion comprises four feet, a corresponding shim stack may be inserted between each foot and the base frame, and the number or thickness of shims of each shim stack (for each foot) may be different to allow vertical adjustment of the motor. Each of the shim stacks may have at least one shim, which confirms that the shim stack is not only provided for aligning the feet with each other, but also for height adjustment of the motor as a whole.

[0022] The first alignment portion may further include a horizontal adjustment member for horizontal adjustment of the motor, such as a long hole or a slider arranged in the base frame, for horizontally adjusting the position where the motor support foot is fixed (eg, screwed) on the base frame.

[0023] The base frame is supported by a support structure, which includes a first support member and a second support member. The support structure can be fixedly mounted to be able to support the base frame with the motor mounted thereon, and is itself supported directly or indirectly by the ground. For example, the support structure can be fixedly mounted to the conveyor facility frame (which can also (possibly indirectly) support the pulley shaft and possibly support other components of the conveyor), or can be mounted to a foundation on the ground. The first support member and the second support member can be mounted separately or together.

[0024] The first support member and the second support member are spaced apart from each other in a direction perpendicular to the axial direction of the motor shaft. Therefore, the line between the first support member and the second support member (defined as the line between their centers) has at least a component in a direction perpendicular to the axial direction of the motor shaft, but may still be at an angle to that direction. Preferably, the angle is less than 30°.

[0025] The first support member may be provided closer to the motor shaft in a horizontal direction perpendicular to the motor shaft than the second support member. In this way, the first support member may support a larger portion of the weight of the gearless motor than the second support member, and / or (height) adjustment at the first support member may be particularly effective for aligning the motor shaft.

[0026] The first support member and / or the second support member may be disposed below the base frame, but are not limited to this arrangement. The first support member and / or the second support member may alternatively be disposed above the base frame, or disposed at substantially the same height as the base frame. The first support member may support the base frame from below, from the side, or from above, and the second support member may support the base frame from below, from the side, or from above regardless of the position of the first support member.

[0027] The base frame is preferably connected to the support structure by a three-support connection having no more than three supports (in an idealized representation, these supports can be represented as support points) to connect the base frame to the support structure. In the three-support connection, preferably, when viewed from above, the three supports are arranged in a triangular layout.

[0028] In a three-support connection, the support structure may have two supports at a first support member and one support at a second support member. In this case, the two first support members are preferably spaced apart in a horizontal direction parallel to the axis of the motor shaft. The base frame may be connected to the first support member via two second alignment portions providing two supports, and connected to the second support by a connection portion providing one support.

[0029] In particular, two of the three-point supports may connect the base frame to the first support member. More specifically, two of the three-point supports may connect to the first support member via a second alignment portion. One of the supports in the three-support connection may connect the base frame to the second support via a connection portion. The three-support configuration may advantageously support the base frame in a simple, easy and quick to align manner without risk of misalignment or instability, in the same way that a table with three legs is particularly stable.

[0030] The support structure including the first support member and the second support member may be made of steel (eg steel beams) and / or concrete.

[0031] The second alignment portion is disposed between the first support and the base frame and allows the base frame to be adjusted relative to the first support. The second alignment portion may include a height adjustment member, such as one or more shims. The shims may be inserted between the first support and the base frame for at least vertical alignment of the base frame. The second alignment portion may be arranged below the base frame. The second alignment portion may also include a horizontal adjustment member, such as a slotted hole or a slider.

[0032] Preferably, the second alignment portion can provide coarse adjustment, while the first alignment portion can provide fine adjustment. For example, the first alignment portion can use no thicker shims than the second alignment portion, preferably thinner shims, and / or can have a smaller vertical adjustment range than the second alignment portion. By providing coarse alignment as well as fine alignment in at least the vertical direction, precise alignment can be easily and quickly obtained. In particular, the axis of the motor shaft can be quickly and accurately aligned coaxially with the axis of the pulley shaft.

[0033] The connection portion connects the base frame to the second support. The connection portion may be a fixed connection. The fixed connection may be a bolted connection. The fixed connection preferably provides a fixed connection between the first support member (41) and the base frame (10).

[0034] Alternatively, the connection portion may be a pivot connection having at least one degree of freedom. The pivot may preferably have a pivot axis parallel to the axis of the motor shaft or pulley shaft, and / or perpendicular (at right angles (or at any angle) to the pulley shaft) to allow horizontal movement of the base frame relative to the second support. The pivot may also be adjustable in the horizontal direction to allow positioning of the base frame in the horizontal direction relative to the second support for installation. For example, the connection portion may be a universal joint, a cardan joint, a hinge bearing, a sliding bearing, a spherical bearing, etc.

[0035] The coupling is configured to couple the motor shaft to the pulley shaft without a gear. The coupling can compensate for any misalignment between the motor shaft and the pulley shaft. For example, such misalignment can be a residual misalignment, such as associated with a smaller tolerance or misalignment than the fine adjustment provided by the first alignment portion. Such residual misalignment may also occur during operation of the conveyor belt due to loads carried by the conveyor belt, torque applied to the pulley shaft, thermal expansion, and / or similar factors.

[0036] Thus, the misalignment may be referred to as a residual misalignment, such as a misalignment that remains after the conveyor drive system has been installed, and which is smaller than the vertical and / or horizontal adjustment range or adjustment accuracy of the first alignment portion.

[0037] The misalignment may be an axial, radial and / or angular misalignment of the motor shaft with respect to the pulley shaft, and preferably the coupling may compensate for such axial, radial and / or angular misalignment.

[0038] A coupling that can compensate for misalignment can be, for example, a flexible coupling. Preferred types of flexible couplings are gear couplings, steel sheet couplings, flexible claw couplings, etc. Other types of couplings that can compensate for misalignment are disk or membrane couplings or servo couplings.

[0039] A disc brake may be provided between the gearless motor and the pulley. The disc brake may be integrated with the pulley shaft, for example. The disc brake may include a floating brake caliper to compensate for brake disc displacement, and / or the disc brake may include a brake carrier with a connected brake that is adjustable for alignment with the brake disc. Adjustment of the floating brake caliper and / or the brake carrier with a connected brake may be in vertical and / or horizontal direction.

[0040] In addition to the gearless motor, a liquid cooler unit (CU) and other devices may be mounted on the base frame.

[0041] When installing a conveyor drive system in an industrial conveyor facility, the conveyor drive system is installed using a support structure that is stably (possibly indirectly) supported by the ground. This can be achieved, for example, by mounting the support structure to a conveyor facility frame of the conveyor facility.

[0042] The base frame with the motor mounted thereon may then be positioned to align with the first support member and connected to the second support member. For example, a crane may be used to position and temporarily support the base frame carrying the motor while the base frame is connected to the second support member. The base frame may then be mounted to the first support member via the second alignment portion, whereupon the second alignment portion is adjusted (e.g., by inserting an appropriate shim plate stack) for rough alignment of the motor shaft (22) with the pulley shaft (2). Thereafter, the crane may be decoupled and removed.

[0043] After adjusting the second alignment portion, the first alignment portion is adjusted for fine alignment of the motor shaft with the pulley shaft. The adjustment may be performed by providing an appropriate stack of shim plates.

[0044] In a particular example, an initial first adjustment member may be provided (e.g., pre-installed) between the mounting portion of the motor and the base frame for adjusting the motor relative to the base frame. The initial first adjustment member may allow continuous (vertical and optionally also horizontal) adjustment and may, for example, include a hydraulic adjustment system. The initial first alignment member may be adjusted for fine alignment of the motor shaft with the pulley shaft. The initial first alignment member may then be replaced by a permanent first alignment member such as a discrete height adjustment member (e.g., a corresponding shim plate stack), whereby the height of the permanent first alignment member is selected to match the height provided by the initial first alignment member.

[0045] After adjusting the first alignment portion in this way, the motor shaft can be coupled to the pulley shaft via a (flexible) coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic side view of components illustrating one aspect of a conveyor drive system.

[0047] Figure 2 is a schematic top view of this aspect of the conveyor drive system.

[0048] Figure 3 is a perspective view showing a support structure including first and second support members of a conveyor drive system. DETAILED DESCRIPTION

[0049] like Figure 1As shown, a base frame (10) is provided for supporting a gearless motor (20). Two first supports (41) are provided near one end of the base frame (10) and below the base frame (10), and the two first supports are spaced apart in a direction parallel to the axis of the motor shaft (22). Figure 3 2 shows in perspective the arrangement of two first supports (41) spaced apart in a direction parallel to the axis of the motor shaft (22).

[0050] A second alignment portion (32) is provided between each of the first supports (41) and the base frame (10). These second alignment portions (32) include shims inserted between the first supports (41) and the base frame (10) to provide at least a rough vertical alignment of the base frame (10). In this way, the alignment portion (32) can provide a rough vertical horizontal alignment of the motor shaft (22) with the pulley shaft (2). The number or thickness of the shims of each second alignment portion (32) can be different to provide a better alignment of the motor shaft (22) toward the pulley shaft (2). Optionally, a horizontal alignment device, such as a jacking bolt, etc., can also be provided at the alignment portion (32) for horizontal alignment of the base frame (10).

[0051] At the other end of the base frame (10), a connecting portion (50) is provided to connect the base frame (10) to the second support (42). Figure 1 As shown, the connection portion (50) is a pivot connection.

[0052] In this way, the two first supports (41) and the connecting portion (50) form a three-support connection between the base frame (10) and the support structure (40). The pivot can follow the adjustment made by the second alignment portion 32 while supporting one end of the base frame 10. This provides a simple structure that allows relatively easy and fast alignment of the base frame (10). Therefore, when installing the conveyor drive system, a fast and easy rough alignment of the motor shaft (22) and the pulley shaft (2) can be achieved.

[0053] The housing of the gearless motor (20) includes a mounting portion (24) including four legs (only two legs closer to the viewer are shown). A first alignment portion (31) is provided between each leg and the base frame (10). The first alignment portion (31) can provide fine adjustment of the gearless motor (20) so that the motor shaft (22) can be finely coaxially aligned with the pulley shaft (2).

[0054] The coupling (60) is a flexible coupling that can compensate for misalignment between the motor shaft (22) and the pulley shaft (2). Such misalignment may occur during operation of the conveyor, for example due to loads carried by the conveyor, tension in the conveyor belt, torque applied to the conveyor, etc. Misalignment may also occur due to thermal expansion / contraction of the conveyor facility, etc. The flexible coupling allows operation of the conveyor despite such misalignment.

[0055] like Figure 2 As shown, the conveyor drive system can also be provided with a disc brake having a brake disc (71) between the gearless motor (20) and the pulley shaft (2). The disc brake of this embodiment includes a floating brake caliper (not shown) to compensate for the displacement of the brake disc (71).

[0056] When installing the conveyor drive system of the present embodiment in an industrial conveyor facility, first, a support structure (40) including a first support (41) and a second support (42) is mounted to the conveyor facility frame. Then, a base frame (10) on which a motor (20) is mounted is positioned above the first support (41), and the base frame (10) is connected to the second support (42) via a connecting portion (50).

[0057] like Figure 3 As shown, the connecting portion (50) is a pivot connection, which includes a slit for receiving a bolt so that the axis of the bolt is parallel to the axis of the motor shaft (22) to connect the base frame (10) to the second support (42). In this way, the base frame (10) can pivot along the axis of the bolt and can also move horizontally in the longitudinal direction of the slit to follow the alignment of the second alignment portion (32) in the next step.

[0058] Then, the second alignment portion (32) is adjusted by inserting shims for rough alignment of the motor shaft (22) with the pulley shaft (2), and the base frame (10) is mounted on the first support (41).

[0059] Then, for fine alignment of the motor shaft (22) and the pulley shaft (2), fine alignment is performed by adjusting the first alignment portion (31) so that the motor shaft (22) is coaxial with the pulley shaft (2), and the motor shaft (22) is coupled to the pulley shaft (2) through the flexible coupling (60).

[0060] This provides the advantage that the base frame needs to be shimmed at only two locations of the second alignment portions (32). The pivot connection of the connecting portion (50) allows rotational movement in the pivot point, which reduces the number of shimmed connections to the two second alignment portions (32). This three-support arrangement provides easier alignment than, for example, a four-support alignment having two first support connections and two second support connections.

[0061] By providing the first alignment portion (31) and the second alignment portion (32), the base frame (10) can be easily and quickly aligned and installed. After the installation of the base frame (10) has been achieved, fine adjustment of the motor shaft (22) to the pulley shaft (2) can be performed.

[0062] In this way, an easy and fast installation of a conveyor drive system (1) comprising a gearless motor (20) can be achieved without requiring major modifications to existing conveyor installations.

[0063] Reference numerals

[0064] 1Conveyor drive system

[0065] 2 pulley shaft

[0066] 10 Base frame

[0067] 20 Gearless Motor

[0068] 22 Motor shaft

[0069] 24 Installation Department

[0070] 31 First alignment section

[0071] 32 Second alignment section

[0072] 40 Support structure

[0073] 41 First Support

[0074] 42 Second support

[0075] 50 connection part

[0076] 60 coupling

[0077] 71 brake disc

Claims

1. A conveyor drive system (1) for an industrial conveyor facility, the conveyor drive system (1) comprising: a pulley shaft (2) configured to drive a conveyor belt of the conveyor facility; A gearless motor (20) for driving the pulley shaft (2) without gears, the motor (20) comprising a motor shaft (22) and a motor housing having a mounting portion (24); A base frame (10) for supporting the motor (20); a first alignment portion (31), wherein the motor (20) is mounted on the base frame (10) using a mounting portion (24) of the motor (20), the first alignment portion (31) being provided between the mounting portion (24) and the base frame (10) for at least vertically adjusting the motor (20) relative to the base frame (10); a support structure (40) configured to support the base frame (10), the support structure (40) comprising a first support member (41) and a second support member (42), the first support member (41) and the second support member (42) being spaced apart from each other in a direction perpendicular to the axial direction of the motor shaft (22); a second alignment portion (32) provided between the first support member (41) and the base frame (10) for at least vertically adjusting the base frame (10) relative to the first support member (41); a connecting portion (50) connecting the base frame (10) to the second supporting member (42); as well as A coupling (60) couples the motor shaft (22) to the pulley shaft (2) without gears and compensates for misalignment between the motor shaft (22) and the pulley shaft (2).

2. The conveyor drive system (1) according to claim 1, wherein the first alignment portion (31) and the second alignment portion (32) are adjusted for coaxially aligning the motor shaft (22) with the pulley shaft (2), and optionally, The second alignment portion (32) is configured to provide coarse adjustment and the first alignment portion (31) is configured to provide fine adjustment, and / or the vertical adjustment range of the second alignment portion (32) is greater than the vertical adjustment range of the first alignment portion (31).

3. A conveyor drive system (1) according to any one of the preceding claims, wherein the first alignment portion (31) is arranged below the mounting portion (24) and the second alignment portion (32) is arranged below the base frame (10).

4. The conveyor drive system (1) according to any one of the preceding claims, wherein the first support member (41) is closer to the motor shaft (22) than the second support member (42) in a horizontal direction perpendicular to the motor shaft (22).

5. A conveyor drive system (1) according to any one of the preceding claims, wherein the mounting portion (24) includes at least one foot, preferably at least three feet, and more preferably four feet, and wherein the first alignment portion (31) includes a height adjustment member, preferably a gasket, arranged below each of the at least one foot.

6. The conveyor drive system (1) according to any of the preceding claims, wherein the connection portion (50) is a fixed connection, preferably a bolted connection.

7. A conveyor drive system (1) according to any one of the preceding claims, wherein the connection part (50) is a pivot connection with at least one degree of freedom and optionally also adjustable in horizontal direction, and optionally, The pivot shaft has a pivot axis which is parallel to the axis of the motor shaft (22) or the pulley shaft (2).

8. A conveyor drive system (1) according to any of the preceding claims, wherein the pulley shaft (2) supports less than 50%, preferably less than 10%, and more preferably less than 5% of the weight of the motor (20) or the total weight of the motor (20) and the base frame (10).

9. The conveyor drive system (1) according to any of the preceding claims, wherein the coupling (60) is a flexible coupling.

10. The conveyor drive system (1) according to any one of the preceding claims, wherein the first alignment portion (31) and / or the second alignment portion (32) comprises a shim.

11. A conveyor drive system (1) according to any one of the preceding claims, wherein the first support member (41) comprises two first support members (41), and the two first support members (41) are spaced apart from each other in a direction parallel to the axis of the motor shaft (22).

12. The conveyor drive system (1) according to claim 11, wherein the base frame (10) is connected to the support structure (40) by a three-support connection, the three-support connection having no more than three supports connecting the base frame (10) and the support structure (40), and / or The base frame (10) is connected to the first support member (41) by providing the second alignment portion (32) with two support connections, and is connected to the second support (42) by providing the connection portion (50) with one support connection.

13. The conveyor drive system (1) according to any one of the preceding claims, further comprising a disc brake provided between the gearless motor (20) and the pulley shaft (2), wherein the disc brake comprises a floating brake caliper configured to compensate for displacement of a brake disc (71), and / or wherein the disc brake comprises a brake carrier having a connected brake, the connected brake being [horizontally] adjustable for alignment with the brake disc (71).

14. A conveyor drive system (1) according to any of the preceding claims, wherein the motor (20) is at least one of a permanent magnet type and a synchronous motor type with external excitation and an induction motor type, and wherein the motor (20) is preferably liquid-cooled or air-cooled.

15. The conveyor drive system (1) according to any one of the preceding claims, wherein the first support member (41) and / or the second support member (42) are made of steel beams and / or concrete.

16. A conveyor drive system (1) according to any one of the preceding claims, wherein the coupling (60) is a through coupling such that the axis of the motor shaft (22) and the axis of the pulley shaft (2) are concentric with each other.

17. An industrial conveyor installation having a conveyor belt and a conveyor drive system (1) for driving the conveyor belt via the pulley shaft (2).

18. The industrial conveyor facility according to claim 17, further comprising a rigid conveyor facility frame of the conveyor facility for supporting the pulley shaft (2), wherein the support structure (40) is mounted to and supported by the conveyor facility frame.

19. A method for installing a conveyor drive system (1) according to any one of claims 1 to 16 in an industrial conveyor facility, the method comprising the following steps: a. mounting the support structure (40) comprising the first support member (41) and the second support member (42) to a conveyor facility frame of the conveyor facility; b. positioning the base frame (10) on which the motor (20) is mounted so as to be aligned with the first support member (41), and connecting the base frame (10) to the second support member (42) via the connecting portion (50); c. adjusting the second alignment portion (32) for rough alignment of the motor shaft (22) with the pulley shaft (2), and mounting the base frame (10) to the first support member (41) via the second alignment portion (32); d. adjusting the first alignment portion (31) for fine alignment of the motor shaft (22) with the pulley shaft (2); as well as e. coupling the motor shaft (22) to the pulley shaft (2) via the coupling (60).

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