Magnetic bearing, shaft and shaft monitoring for a spinning rotor of an open-end spinning machine

    公开(公告)号:US09964147B2

    公开(公告)日:2018-05-08

    申请号:US14675148

    申请日:2015-03-31

    申请人: Rieter CZ s.r.o.

    IPC分类号: F16C32/04

    摘要: A magnetic bearing for the mounting of a shaft, in particular for a spinning rotor of an open-end spinning device, features several pole shanks of a stator for the active radial magnetic mounting of the shaft in two degrees of freedom, which in each case are surrounded by a coil and are radially arranged to each other, in such a manner that they define an opening for the shaft. In the area of the opening, the pole shanks are connected to each other. For the passive axial mounting of the shaft, at least one permanent magnet is arranged between the coils and the opening. The invention also includes a shaft for mounting with at least one corresponding magnetic bearing. The shaft is a composite component, which at least partially consists of non-ferromagnetic material. In the area of the radial and axial mounting, a component made of a ferromagnetic material is arranged. A shaft mounting is also provided and features, for the passive axial mounting of one degree of freedom of the shaft and for the active radial mounting of two degrees of freedom of the shaft, at least one, preferably two, corresponding magnetic bearings.

    Electromagnetic Device for Eliminating a Yarn Loop when Winding Yarn on a Cross-Wound Bobbin on a Spinning Machine at a Constant Speed of the Yarn Production

    公开(公告)号:US20190071276A1

    公开(公告)日:2019-03-07

    申请号:US16079569

    申请日:2017-02-23

    申请人: Rieter CZ s.r.o.

    摘要: The invention relates to an electromagnetic device for eliminating a yarn loop during the process of winding yarn on a cross-wound bobbin on a spinning machine at a constant speed of the yarn production, which comprises a cylindrical two pole magnet (1), which is connected to a compensatory arm (5) of a yarn loop and which is mounted rotatably about its longitudinal axis between two pole pieces (20, 21) of a magnetic core (2) of a coil (4), which are situated opposite each other, whereby on the side remote from the cylindrical two-pole magnet (1) and the pole pieces (20, 21), the magnetic core (2) passes through the electrical coil (4) connected to a source of electrical energy and to a control device. The magnetic core (2) is interrupted in the cavity of the coil (4) and a two pole permanent magnet (3) is located at the point of its interruption.

    Magnetic Bearing, Shaft and Shaft Mounting
    6.
    发明申请
    Magnetic Bearing, Shaft and Shaft Mounting 有权
    磁轴承,轴和轴安装

    公开(公告)号:US20150275964A1

    公开(公告)日:2015-10-01

    申请号:US14675148

    申请日:2015-03-31

    申请人: Rieter CZ s.r.o.

    IPC分类号: F16C32/04

    摘要: A magnetic bearing for the mounting of a shaft (7), in particular for a spinning rotor of an open-end spinning device, features several pole shanks (2) of a stator (1) for the active radial magnetic mounting of the shaft (7) in two degrees of freedom, which in each case are surrounded by a coil (6) and are radially arranged to each other, whereas the pole shanks (2) are arranged at each other in such a manner that they release an opening (4) for the shaft (7). In the area of the opening (4), and on the side of the coils (6) turned away from the opening (4), the pole shanks (2) are connected to each other. In particular, for the passive axial mounting of the shaft (7), at least one permanent magnet (10) is arranged between the coils (6) and the opening (4); this is in operative connection with the pole shanks (2). A shaft (7) for mounting with at least one corresponding magnetic bearing is a composite component, which at least partially consists of non ferromagnetic material. In the area of the radial and (if applicable) axial mounting, a component made of a ferromagnetic material is arranged. A shaft mounting, in particular for a rotatable shaft of a spinning rotor in an open-end spinning device, features, for the passive axial mounting of one degree of freedom of the shaft (7) and for the active radial mounting of two degrees of freedom of the shaft (7), at least one, preferably two, corresponding magnetic bearings.

    摘要翻译: 用于安装轴(7)的磁性轴承,特别是用于开放式纺纱装置的旋转转子的特征在于具有用于轴的主动径向磁性安装的定子(1)的多个极杆(2) 7)在两个自由度中,其在每种情况下被线圈(6)包围并且彼此径向布置,而杆杆(2)以这样的方式彼此布置,使得它们释放开口 4)用于轴(7)。 在开口(4)的区域中,并且在离开开口(4)的线圈(6)侧,极靴(2)彼此连接。 特别地,对于轴(7)的被动轴向安装,至少一个永磁体(10)设置在线圈(6)和开口(4)之间; 这与杆杆(2)有效连接。 用于与至少一个对应的磁性轴承安装的轴(7)是至少部分地由非铁磁材料组成的复合部件。 在径向和(如果适用)轴向安装的区域中,布置由铁磁材料制成的部件。 特别是用于开放式旋转装置中的旋转转子的可旋转轴的轴安装件,其特征在于用于轴(7)的一个自由度的被动轴向安装,并且用于主动径向安装两个 轴(7)的自由度,至少一个,优选两个对应的磁轴承。

    Method for the safe starting and/or stopping of a rotor of a rotor spinning machine and the rotor spinning machine

    公开(公告)号:US10443158B2

    公开(公告)日:2019-10-15

    申请号:US15211626

    申请日:2016-07-15

    申请人: Rieter CZ s.r.o.

    IPC分类号: D01H4/44

    摘要: A method is provide for the safe starting and/or stopping of a rotor of a rotor spinning machine for the production of yarn, the spinning machine having a multiple number of rotors that rotate in a respective rotor housing covered by a lid. Each rotor is driven by its own motor and is held in at least one radially and/or axially active magnetic bearing by means of a position controller. Each motor is in communication with a control unit through a data connection to control the rotor in various operating states. One or more of the following conditions is checked against predetermined target values or states: (1) control for the drive of the rotor; (2) position control for the active magnetic bearings; (3) data connection for controlling the motor. In the event that the predetermined target values or states are not met, start of the rotor is blocked or the motor that is already running is selectively stopped.

    Method for the Safe Starting and/or Stopping of a Rotor of a Rotor Spinning Machine and the Rotor Spinning Machine
    8.
    发明申请
    Method for the Safe Starting and/or Stopping of a Rotor of a Rotor Spinning Machine and the Rotor Spinning Machine 审中-公开
    转子旋转机和转子旋转机转子安全启动和/或停止的方法

    公开(公告)号:US20170016150A1

    公开(公告)日:2017-01-19

    申请号:US15211626

    申请日:2016-07-15

    申请人: Rieter CZ s.r.o.

    IPC分类号: D01H7/22

    CPC分类号: D01H4/44 F16C32/0442

    摘要: With a method for the safe starting and/or stopping a rotor of a rotor spinning machine for the production of yarn, with a multiple number of rotors, each of which rotates in a rotor housing covered by a lid, each rotor is driven by its own motor and is held in at least one radially and/or axially active magnetic bearing by means of a position controller. A data connection of the motor is provided with a control unit, in order to drive the rotor in various operating states. There is a check of the control for driving the rotor, the position control for the one or more active magnetic bearings, the data connection for controlling the motor and/or the properly closed lid, and, in the event that predetermined target values and/or states are not met, the start of the rotor is blocked or the motor that is already running is selectively stopped. A rotor spinning machine is suitable for carrying out the method.

    摘要翻译: 通过一种用于生产纱线的转杯纺纱机的转子的安全起动和/或停止的方法,其具有多个转子,每个转子在被盖子覆盖的转子壳体中旋转,每个转子由其驱动 并且通过位置控制器保持在至少一个径向和/或轴向活动的磁性轴承中。 电动机的数据连接设置有控制单元,以便以各种操作状态驱动转子。 检查用于驱动转子的控制,用于一个或多个主动磁轴承的位置控制,用于控制电机和/或适当关闭的盖的数据连接,以及在预定目标值和/ 或状态不满足时,转子的启动被阻止或已经运行的电动机被选择性地停止。 转杯纺纱机适用于实施该方法。