• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Drive arrangement for a vertical roller mill, comprising a housing (10); a pressure plate (11) rotatably supported on the housing (10) about a vertical pressure plate rotation axis (12) and forming an output of the drive assembly; and a plurality of electric motors (14) disposed in the housing (10), each electric motor (14) having a rotor axis of rotation (15) parallel and radially offset from the platen rotation axis (12), and wherein the rotor axes of rotation (15) of the electric motors (14) are in rotary drive connection with a spur gear (13); and wherein the spur gear (13) directly without interposition of a further transmission device with the pressure plate (11) is in rotary drive connection.
    公开号:CH709827B1
    申请号:CH00806/15
    申请日:2015-06-05
    公开日:2018-12-14
    发明作者:Boiger Peter；Linder Johannes
    申请人:Renk Ag；
    IPC主号:
    专利说明:

    Description: The invention relates to a drive arrangement for a vertical roller mill according to the preamble of claim 1.
    From DE 10 2011 079 555 A1 a drive arrangement for a vertical roller mill is known. Thus, the known from this prior art drive assembly for a vertical roller mill comprises a housing, a rotatably supported on the housing pressure plate which is rotatable about a vertical pressure plate axis and which forms an output of the drive assembly, a transmission device, which below the pressure plate in the Housing is arranged and which is in rotational drive connection with the pressure plate, and a plurality of electric motors, which are arranged below the transmission device in the housing, wherein each electric motor has a parallel and radially offset from the pressure plate rotation axis extending rotor axis of rotation. The gear arrangement of the drive arrangement according to DE 10 2011 079 555 A1 comprises at least one planetary gear and in addition a spur gear with a central gear, each electric motor has a pinion with the central gear of the spur gear engaged. Starting from the spur gear provided by the electric motors drive torque via the or the planetary gear is transmitted in the direction of the pressure plate. The drive torque provided by the electric motors is accordingly summed on the drive side on the central wheel of the spur gear and then transmitted via the planetary gear or the planetary gear on the driven-side pressure plate.
    There is a need for a drive assembly for a vertical roller mill with a simpler structure.
    On this basis, the invention Hegt the task of creating a novel drive arrangement for a vertical roller mill.
    This object is achieved by a drive arrangement for a vertical roller mill according to claim 1. According to the invention, the spur gear is directly without interposition of another transmission device with the pressure plate in rotary drive connection.
    Such a drive arrangement for a vertical roller mill, in which the spur gear is directly without the interposition of another transmission device with the pressure plate in rotary drive connection, has a particularly simple structure.
    According to an advantageous embodiment of the invention, the spur gear is designed as a single-stage spur gear. This is to ensure a particularly simple structure of the drive assembly advantageous.
    According to a further advantageous embodiment of the invention, the spur gear two rotatably coupled to the pressure plate spur gears, wherein a shaft of each electric motor at a first end with a first spur gear of the spur gear and at a second end with a second spur gear of the spur gear in rotary drive connection is, in particular over the ends of the shaft of each electric motor associated drive gears, which are connected to the spur gears of the spur gear via opposing helical gears in rotary drive connection. As a result, while ensuring load balancing on the electric motors without the use of thrust bearings for the electric motors, the torque provided by them can be introduced particularly advantageously into the spur gear. It is ensured a simple structure of the drive assembly.
    Preferably, the two spur gears of the spur gear are rotatably connected to a hollow shaft, wherein the hollow shaft is rotatably coupled via an output shaft to the pressure plate. The hollow shaft and the output shaft are preferably non-rotatably coupled via a detachable axial toothing, wherein when the axial toothing is released, a drive unit of the drive assembly comprising the electric motors and the hollow shaft is separable from a drive unit comprising the pressure plate and the output shaft. Due to the separability of the drive unit of the output unit maintenance work can be performed particularly advantageous on the drive unit, ensuring good accessibility.
    Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawing. Showing:
    1 shows a first drive arrangement according to the invention for a vertical roller mill; and FIG. 2 shows a second drive arrangement according to the invention for a vertical roller mill.
    The present invention relates to a drive arrangement for a vertical roller mill.
    On the housing 10, a pressure plate 11 is supported, which is rotatable about a vertical pressure plate rotation axis 12 and which forms an output of the drive assembly.
    The pressure plate 11 is of several electric motors 14, which are arranged in the housing 10, antrelbbar. Each electric motor 14 has a rotor axis 15 extending parallel and radially offset from the plate rotation axis 12.
    The electric motors 14 of the drive assembly are connected to the pressure plate 11 via a spur gear 13 in rotary drive connection. According to the invention, the spur gear 13 stands directly in rotational drive connection without the interposition of a further gear mechanism with the pressure plate 11. This is to ensure a simple construction of the drive assembly of great advantage. In the embodiment of Fig. 1, the spur gear 13 is formed as a single-stage spur gear.
    The single-stage spur gear 13 has two rotatably coupled to the pressure plate 11, axially vertically offset spur gears 18, 19. Each electric motor 14 is driven via its about the rotor axis 15 driven shaft at opposite ends 16, 17 of the shaft with the two spur gears 18th , 19 of the single-stage spur gear 13, namely such that the shaft of each electric motor 14 is at a first end 16 via a said first end 16 associated first drive gear 20 with the first spur gear 18 in rotary drive connection, whereas a second end 17 of the shaft of each Electric motor 14 is connected via a second drive gear 21 associated with this second end 17 with the second spur gear 19 of the spur gear 13 in rotary drive connection. At the opposite ends 16,17 of the shaft of each electric motor 14 is between the respective drive gear 20, 21 and the respective spur gear 18,19 formed a helical gear, wherein the helical gears at the opposite ends 16, 17 of the shaft of each electric motor 14 in opposite directions or oppositely executed. In this way, each of the electric motors 14, while ensuring a perfect load balance between the opposite ends 16, 17 of the shaft of the respective electric motor 14, drive the torque into the spur gear 13.
    The spur gears 18, 19 of the spur gear 13 are rotatably connected to a hollow shaft 22. In particular, the spur gears 18, 19 shrunk onto the hollow shaft 22 rotationally fixed. The hollow shaft 22 is connected via an output shaft 23 in a rotationally fixed drive connection with the pressure plate 11. The output shaft 23 is therefore rotatably at one end with the hollow shaft 22 and at an opposite end rotatably coupled to the pressure plate 11.
    In the embodiment of FIG. 1, the hollow shaft 22 to which the spur gears 18, 19 of the single-stage spur gear 13 are rotatably connected, mounted on bearings 25 rotatably mounted on a lying between the electric motors 14 and the hollow shaft 22 housing portion 24 of the housing 10 , According to FIG. 1, the electric motors 14 are also supported via fastening devices 26 on this housing section 24.
    It is therefore within the meaning of the present invention to propose a drive arrangement for a vertical roller mill with multiple electric motors 14, wherein the electric motors 14 exclusively via a single or two-stage design of a spur gear 13 in a pressure plate 11 drive, so without further Transmission device between the spur gear 13 and the pressure plate 11. Particularly advantageous is an embodiment in which the spur gear 13 is designed in one stage, and in which both ends 16, 17 of the shafts of the electric motors 14 are used to drive the torque in the spur gear 13, namely, over, with the respective ends 16, 17 of the shafts of the electric motors 14 cooperating, front wheels 18, 19 of the preferably single-stage spur gear 13. Preferably, the number of electric motors used in the drive assembly is between two and ten.
    The electric motors 14 may be cooled on their surface via transmission oil, which is passed over the surface of the electric motors 14, for example, and collected in a corresponding receptacle.
    Fig. 2 shows a schematic section of drive arrangement for a vertical roller mill. With regard to its basic construction, the drive arrangement of FIG. 2 corresponds to the drive arrangement of FIG. 1, so that the same reference numerals are used to avoid unnecessary repetitions for the same modules. In the following, only those details are dealt with by which the drive arrangement of FIG. 2 differs from the drive arrangement of FIG. With regard to all other details, reference is made to the comments on the drive arrangement of FIG. 1.
    A difference of the drive assembly of Fig. 2 with respect to the drive assembly of Fig. 1 is that in the drive assembly of FIG. 2, the hollow shaft 22, with which the two spur gears 18, 19 of the spur gear 13 are rotatably coupled, and the Output shaft 23, with which the pressure plate 11 is rotatably coupled via a detachable axial toothing 28 rotatably coupled. This axial toothing 28 can be designed, for example, as Hirth toothing and can be opened or loosened and closed via a clamping anchor 29. When the axial toothing 28 is closed, the hollow shaft 22 and the output shaft 23 are non-rotatably coupled, and the radial forces of the hollow shaft 22 can be accommodated in the radial bearing 27. When dissolved axial splines 28, the hollow shaft 22 and the output shaft 23 are decoupled from each other, and a horizontal expansion of the electric motors 14 and the hollow shaft 22 and the spur gear 13 comprehensive drive unit 30 from the vertical roller mill and whereabouts of the pressure plate 11 and the output shaft 23 comprehensive Output unit 31 in the vertical roller mill is easy to implement.
    Further differences of the drive assembly of FIG. 2 and the drive assembly of FIG. 1 exist with regard to the positioning of the bearing 25 and the fasteners 26th
    In the drive arrangement of Fig. 2, the bearings 25, which serve to rotatably support the hollow shaft 22 in the housing 10, positioned radially within the hollow shaft 22 and not, as shown in Fig. 1, radially outside the hollow shaft 22nd
    The fastening means 26, which serve to fasten the electric motors 14 on the housing 10, are arranged radially outwardly in FIG. 2, and not, as in FIG. 1, radially inwardly between the hollow shaft 22 and the electric motors 14.
    权利要求:
    Claims (6)
    [1]
    claims
    A drive assembly for a vertical roller mill, comprising a housing (10); a pressure plate (11) rotatably supported on the housing (10) about a vertical pressure plate rotation axis (12) and forming an output of the drive assembly; a plurality of electric motors (14) which are arranged in the housing (10), wherein each electric motor (14) has a rotor axis (15) extending parallel and radially offset from the plate rotation axis (12), and wherein the rotor axes of rotation (15) of the electric motors (14 ) are in rotary drive connection with a spur gear (13); characterized in that the spur gear (13) is directly without interposition of another transmission device with the pressure plate (11) in rotary drive connection.
    [2]
    2. Drive arrangement according to claim 1, characterized in that the spur gear (13) is designed as a single-stage spur gear.
    [3]
    3. Drive arrangement according to claim 1 or 2, characterized in that the spur gear (13) has two rotationally fixed to the pressure plate (11) coupled, axially vertically offset spur gears (18,19), wherein a shaft of each electric motor (14) at a first End (16) with a first spur gear (18) of the spur gear (13) and at a second end (17) with a second spur gear (19) of the spur gear (13) is in rotary drive connection.
    [4]
    4. Drive arrangement according to claim 3, characterized in that the shaft of each electric motor (14) at the two ends (16, 17) of the same each assigns a drive gear (20, 21) is, wherein the opposite ends (16, 17) the respective shaft of the respective electric motor (14) associated drive gears (20, 21) with the spur gears (18, 19) of the spur gear (13) via opposite helical gears are in rotary drive connection.
    [5]
    5. Drive arrangement according to one of claims 3 to 4, characterized in that the two spur gears (18, 19) of the spur gear (13) are rotatably connected to a hollow shaft (22), wherein the hollow shaft (22) via an output shaft (23) rotatably coupled to the pressure plate (11) Is.
    [6]
    6. Drive arrangement according to claim 5, characterized in that the hollow shaft (22) and the output shaft (23) via an axial toothing (28) rotatably, are releasably coupled, wherein when the Axialverzahnung (28) is dissolved, one of the electric motors ( 14) and the hollow shaft (22) comprising drive unit (30) of the drive assembly of a pressure plate (11) and the output shaft (23) comprising the output unit (31) of the drive assembly is separable.
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    同族专利:
    公开号 | 公开日
    CH709827A2|2015-12-31|
    DE102014008965A1|2015-12-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2017-09-29| PCAR| Change of the address of the representative|Free format text: NEW ADDRESS: BELLERIVESTRASSE 203 POSTFACH, 8034 ZUERICH (CH) |
    2021-01-29| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014008965.7A|DE102014008965A1|2014-06-23|2014-06-23|Vehicle in the form of a scooter|
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