WO2016015517A1 - 绕组式永磁转差离合器及应用 - Google Patents

绕组式永磁转差离合器及应用 Download PDF

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Publication number
WO2016015517A1
WO2016015517A1 PCT/CN2015/080207 CN2015080207W WO2016015517A1 WO 2016015517 A1 WO2016015517 A1 WO 2016015517A1 CN 2015080207 W CN2015080207 W CN 2015080207W WO 2016015517 A1 WO2016015517 A1 WO 2016015517A1
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WIPO (PCT)
Prior art keywords
permanent magnet
winding
rotor
slip clutch
rotating shaft
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PCT/CN2015/080207
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English (en)
French (fr)
Inventor
徐俊峰
漆复兴
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江苏磁谷科技股份有限公司
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Publication of WO2016015517A1 publication Critical patent/WO2016015517A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
    • H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/223—Rotor cores with windings and permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/06—Dynamo-electric clutches; Dynamo-electric brakes of the synchronous type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K51/00—Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/005—Machines with only rotors, e.g. counter-rotating rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the invention relates to a clutch structure, in particular to a winding type permanent magnet slip clutch and the application of the winding type permanent magnet slip clutch.
  • a clutch is a device that can be engaged or disengaged when the main and driven portions transmit motion and power on a coaxial line by various manipulations.
  • the traditional clutch can be divided into a fitting clutch and a friction clutch according to the working principle of the engaging component transmission.
  • the process of realizing the disengagement and the closing motion can be divided into an operation type and a self-control type, and the clutch operation mode can be further divided into a mechanical type.
  • An electromagnetic slip clutch solves the above problems well.
  • a winding type permanent magnet slip clutch of the present invention comprises a permanent magnet rotor and a winding rotor which are coaxially arranged, the permanent magnet rotor is coupled with the first rotating shaft, and the winding rotor is coupled with the second rotating shaft, forever There is an air gap between the magnetic rotor and the winding rotor, the permanent magnet rotor comprises a permanent magnet and a fixed permanent magnet housing; the winding rotor comprises a coil winding and a laminated iron core or a wound iron core, and the coil winding forms a loop through the electrical switch
  • the control circuit is turned on and off; the installation of the permanent magnet rotor and the winding rotor satisfies the following conditions: when the coil winding circuit is closed, and the two rotating shafts rotate in the same direction and the rotational speed is different, the torque transmission is realized, and the clutch is in the combined state; When the coil winding circuit is disconnected, the clutch is in a disengaged state.
  • the N pole and the S pole of the permanent magnet are alternately arranged on the casing.
  • the iron core is set as the laminated core, and the laminated core is formed with a plurality of chutes in the axial direction, and the coil winding is embedded in the chute.
  • the permanent magnet rotor is set as a permanent magnet inclined pole rotor.
  • the electrical switch is set as a current limiting switch.
  • the electrical switch is externally connected with an adjustable resistor or an external cascade speed control system.
  • winding type permanent magnet slip clutch fixed permanent magnet rotor, coil winding circuit closed In the state, the second rotating shaft of the winding rotor is braked to realize the brake function; or the fixed winding rotor is closed, and the first rotating shaft of the permanent magnet rotor is braked to realize the brake function.
  • the laminated core is provided with a chute or the permanent magnet rotor is set as a permanent magnet inclined pole rotor, which not only eliminates the cogging torque but also weakens the teeth caused by the slotting. Harmonics, thereby improving the current waveform in the winding rotor.
  • the electrical silicon steel sheet is insulated between the sheets to minimize the torque generated by the laminated core under the action of an alternating magnetic field.
  • the electrical switch is directly fixed on the second rotating shaft, and is controlled to be turned on and off wirelessly, and the carbon brush and the collecting ring can be canceled with respect to the electrical switch being set as an external switch.
  • a centrifugal switch or a speed sensor capable of overspeed protection is mounted on the second rotating shaft, thereby enabling the clutch to achieve an overspeed protection function.
  • the electrical switch can be externally connected with an adjustable resistor or an external cascade speed control system; the clutch device with an external adjustable resistor can realize a soft start function, and is suitable for a soft start function and a load on the drive end.
  • the end is a system with large moment of inertia or heavy load; and the clutch device with external cascade speed control system can achieve excellent speed control function.
  • the clutch when the permanent magnet rotor or the winding rotor is fixed, the clutch can be used as a brake, and the brake is a frictionless brake, which has high work efficiency and low loss.
  • Figure 2 is a schematic view of Embodiment 2 of the present invention.
  • Figure 3 is a schematic view of Embodiment 3 of the present invention.
  • Figure 4 is a schematic view of Embodiment 4 of the present invention.
  • Figure 6 is a schematic view of Embodiment 6 of the present invention.
  • Figure 7 is a schematic view of Embodiment 7 of the present invention.
  • a winding type permanent magnet slip clutch of the present embodiment includes a permanent magnet rotor and a winding rotor which are coaxially arranged, a permanent magnet rotor is coupled with the first rotating shaft 2, and the winding rotor and the second rotating shaft 8 are connected.
  • the permanent magnet rotor comprises a permanent magnet 1 and a housing 3 fixing the permanent magnet 1;
  • the winding rotor comprises a coil winding 5 and an iron core 4, the iron core 4 being set
  • the laminated core or the wound core, the coil winding 5 forms a loop, and the circuit is controlled to be turned on and off by the electric switch K;
  • the installation of the permanent magnet rotor and the winding rotor satisfies the following condition: when the coil winding 5 is closed, When the two rotating shafts rotate in the same direction and the rotational speed is different, the torque transmission is realized, and the clutch is in the combined state; when the coil winding circuit is disconnected, the clutch is in the separated state.
  • the electrical switch K is provided with a plurality of sub-switches, and the present invention adopts an electrical switch K.
  • the opening and closing of the permanent magnet slip clutch is controlled to make the clutching and disengagement of the permanent magnet slip clutch, so that the clutch can be controlled manually and the clutch can be automatically controlled.
  • the clutch device performs detection, and only needs to adjust the specific engagement condition of the electrical switch K to adjust the electromagnetic torque generated by the clutch of the present invention, which involves fewer components and simple structure; meanwhile, in the present invention, The control of the clutch winding rotor only passes through the electrical switch K without providing other configurations, and the required power supply is directly provided by the coil circuit, thereby reducing external energy consumption; in summary, the clutch is not only simple in structure, but also easy to install, Debug and operate, and also reduce external energy consumption.
  • the N pole and the S pole of the permanent magnet are alternately arranged on the casing 3; wherein the coil winding 5 is wound with a phase winding or any multiphase winding symmetrically connected, and at the same time, The coil winding 5 is set as a full-distance distributed winding.
  • the iron core 4 is set as the laminated core, the laminated core is formed with a plurality of chutes in the axial direction, and the coil winding 5 is embedded in the chute;
  • the laminated core of the structure not only eliminates the cogging torque, but also weakens the tooth harmonics caused by the slotting, thereby improving the current waveform in the winding rotor.
  • the permanent magnet rotor can also be selected as a permanent magnet oblique pole rotor, so that the cogging torque can be eliminated, and the tooth harmonic caused by the slot can be weakened. Thereby improving the current waveform in the winding rotor.
  • the laminated core or the wound core is preferably made of several electrical silicon steel sheets, and adjacent to each other. Insulating treatment between the electrical silicon steel sheets; wherein, in the embodiment, the thickness of the electrical silicon steel sheet is preferably not more than 0.2 mm, thereby maximally weakening the laminated core to generate eddy currents under the action of an alternating magnetic field. The generated torque.
  • the thickness of the electrical silicon steel sheet may be selected to be greater than 0.2 mm according to actual conditions.
  • a collector ring 7 and a carbon brush 6 coupled thereto are mounted on the second rotating shaft 8, and the coil winding 5 is connected to the electrical switch K through a slip ring 7 and a carbon brush 6, as shown in FIG.
  • the electrical switch K can be directly fixed in the second On the rotating shaft 8, the on/off is controlled wirelessly, and the carbon switch 6 and the slip ring 7 can be eliminated by setting the electric switch K to be an external switch.
  • the electrical switch K can also be set as a current limiting switch; when the load increases, the current of the coil winding 5 of the winding rotor rises, when the current rises above a limit value, that is, the system overloads the external switch to trip, the clutch is separated, and the protection is automatically realized.
  • System functions when the load increases, the current of the coil winding 5 of the winding rotor rises, when the current rises above a limit value, that is, the system overloads the external switch to trip, the clutch is separated, and the protection is automatically realized.
  • a centrifugal switch 10 or a speed sensor capable of overspeed protection may be mounted on the second rotating shaft 8; in the embodiment, the centrifugal switch 10 is preferably mounted on the second rotating shaft 8, such as Figure 2 shows the clutch to achieve an overspeed protection function.
  • the weight of the centrifugal switch 10 is deflected by the centrifugal force, and the contact switch opens the coil winding 5, and the clutch is disengaged, thereby realizing the function of the protection system;
  • the overspeed signal is given by setting the speed sensor, and then the electrical switch K is disconnected to realize the overspeed protection function.
  • the present embodiment is different from Embodiment 1 in that the winding rotor is horizontally arranged coaxially with the permanent magnet rotor, and the winding rotor is mounted on the second rotating shaft through a fixed disk 11. 8, on, as shown in Figure 3.
  • the adjustable switch is externally connected to the electrical switch K.
  • the clutch device with an external adjustable resistor can realize the soft start function, and is suitable for the soft start function of the drive end and the large rotation of the load end. Inertia or overloaded systems.
  • the cascade switch speed control system is preferably connected to the electrical switch K; and the clutch device provided with the external cascade speed control system can realize an excellent speed control function.
  • the application of the winding type permanent magnet slip clutch described in Embodiment 1-5 is further provided, and the winding type permanent magnet slip clutch is used as a brake application.
  • the principle is as follows: the winding rotor is fixed by the fixed base 12, and the first rotating shaft 2 of the permanent magnet rotor is gradually braked to realize the brake function.
  • the application of the winding type permanent magnet slip clutch described in Embodiment 1-5 is further provided, and the winding type permanent magnet slip clutch is used as a brake application.
  • the principle is as follows: the permanent magnet rotor is fixed by the fixed base 12, and the second rotating shaft 8 of the winding rotor is gradually braked to realize the brake function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

一种绕组式永磁转差离合器，包括同轴设置的永磁转子和绕组转子，两者之间有气隙，永磁转子安装在转轴一（2）上，绕组转子安装在转轴二（8）上，转轴二（8）上设置有集电环（7）和碳刷（6），与线圈绕组（5）形成能由电气开关（K）控制通、断的回路。利用两转子的转差在线圈绕组（5）中产生感应电流，有电流的线圈绕组（5）在永磁体磁场中就会受到电磁力的作用从而实现转矩的传递，通过电气开关（K）来控制回路的通、断，从而控制永磁转差离合器的接合与分离，具有超速保护功能、过载保护功能、软起动功能、调速功能，还可以当作无摩擦接触的制动器来使用。

Description

绕组式永磁转差离合器及应用 技术领域
本发明涉及离合器结构，具体的涉及一种绕组式永磁转差离合器及该绕组式永磁转差离合器的应用。
背景技术
离合器是一种可以通过各种操纵方式来实现主、从动部分在同轴线上传递运动和功率时具有接合或分离功能的装置。传统离合器按接合元件传动的工作原理，可分为嵌合式离合器和摩擦式离合器，按实现离、合动作的过程可分为操纵式和自控式，按离合器的操纵方式又可分为机械式、气压式、液压式和电磁式等，以上种种的传统离合器，无不存在摩擦、磨损，或为实现离、合功能增加各种繁琐的执行机构等缺点。一种电磁转差离合器很好地解决了上面的种种问题，其离合器的接合与分离和本发明一样，也是通过电气开关的通断来控制的，但电磁转差离合器需要附加整流电路或直流电源，工作时需长期通以直流电流，效率低。另外，永磁离合器的研究在目前也取得了不少成果，例如：专利号为CN101030726A，也很好地解决了摩擦、磨损的问题，但其执行机构仍嫌繁琐，不能做到离、合自如。专利号CN101707461A为一种无摩擦的涡流制动器，与本发明的离合器实现制动功能时有点类似，其涡流转子为铜环加端环的结构，制动时能够做到无磨损，但缺点是：当涡流转子与永磁式定子间有相对运动时，其电磁制动力矩永远存在不能断开，当机构不需要制动时却无法控制、消除制动力矩，也就是说它没有离合器的分离功能。本发明机构很好地解决了以上种种问题，填补了此类离合器的空白。
发明内容
本发明所要解决的技术问题是：对传统离合器的彻底革新，对现有电磁或磁力离合器的进一步改进，进而提供一种结构简单，且无需消耗外界能耗的绕组式永磁转差离合器及应用。
为解决上述技术问题，本发明的一种绕组式永磁转差离合器，包括有同轴设置的永磁转子和绕组转子，永磁转子与第一转轴联接，绕组转子与第二转轴联接，永磁转子和绕组转子之间有气隙，永磁转子包括永磁体和固定永磁体的壳体；绕组转子包括线圈绕组和叠片铁芯或者卷绕式铁芯，线圈绕组形成回路，通过电气开关控制回路的接通与断开；永磁转子与绕组转子的安装满足如下条件：线圈绕组回路闭合状态下，且两根转轴旋转方向一致、转速不同时，实现转矩传递，离合器处于结合状态；线圈绕组回路断开状态下，离合器处于分离状态。
所述永磁体N极、S极在壳体上交替排布。
所述线圈绕组上缠绕一相绕组或者对称连接的任意多相绕组。
所述铁芯设为所述叠片铁芯，所述叠片铁芯沿轴线方向成型有若干斜槽，所述线圈绕组嵌入在所述斜槽中。
所述永磁体转子设为永磁体斜极转子。
所述叠片铁芯或卷绕式铁芯采用电工硅钢片制成，相邻所述电工硅钢片之间进行绝缘处理。
所述电气开关直接固定在第二转轴上，用无线控制其通断。
所述第二转轴上安装有集电环和与之配合的碳刷，所述线圈绕组通过集电环和碳刷与电气开关相连接。
所述第二转轴上安装有可进行超速保护的离心开关或速度传感器。
所述电气开关设为限流开关。
所述电气开关外接可调电阻或外接串级调速控制系统。
上述绕组式永磁转差离合器的应用：固定永磁转子，线圈绕组回路闭合 状态下，绕组转子的第二转轴制动，实现制动器功能；或固定绕组转子，线圈绕组回路闭合状态下，永磁转子的第一转轴制动，实现制动器功能。
本发明的上述技术方案相比现有技术具有以下优点：
1、在本发明中，本发明采用电气开关的通、断来控制永磁转差离合器的接合和分离，使得离合器的操控简单、自如，可手工控制离合也可自动控制离合；即在本发明中，无需设置其他的部件如位置传感器等来对该离合装置进行检测，只需要对电气开关的具体接合情况进行调节即可实现对本发明所述离合器所产生的电磁转矩进行调节，其涉及部件少，结构简单；同时，在本发明中，所述电气开关无需其他配置来提供电源，其所需电源直接由线圈回路提供，从而减少了外部能源的消耗；综上，该离合器不仅结构简单，便于安装、调试和操作。
2、在本发明中，所述叠片铁芯上设有斜槽或所述永磁体转子设为永磁体斜极转子，不仅能消除齿槽定位转矩，而且还能削弱开槽引起的齿谐波，从而改善绕组转子中的电流波形。
3、在本发明中，所述电工硅钢片片间作绝缘处理，从而最大程度上削弱叠片铁芯在交变磁场的作用下产生涡流进而产生的转矩。
4、在本发明中，所述电气开关直接固定在第二转轴上，用无线控制其通断，相对于所述电气开关被设为外接开关可以取消设置碳刷和集电环。
5、在本发明中，所述第二转轴上安装有可进行超速保护的离心开关或速度传感器，从而使该离合器实现超速保护功能。
6、在本发明中，所述电气开关可外接可调电阻或外接串级调速控制系统；设有外接可调电阻的离合装置可以实现软启动功能，适用于驱动端没有软启动功能、负载端为大转动惯量或重载的系统；而设有外接串级调速控制系统的离合装置可以实现优异的调速功能。
7、在本发明中，当固定所述永磁转子或所述绕组转子时，该离合器可以作为制动器使用，且该制动器为无摩擦制动器，其工作效率高，损耗小。
附图说明
为了使本发明的内容更容易被清楚的理解，下面根据本发明的具体实施例并结合附图，对本发明作进一步详细的说明，其中
图1是本发明的实施例1的示意图；
图2是本发明的实施例2的示意图；
图3是本发明的实施例3的示意图；
图4是本发明的实施例4的示意图；
图5是本发明的实施例5的示意图；
图6是本发明的实施例6的示意图；
图7是本发明的实施例7的示意图；
图中附图标记表示为：1-永磁体；2-第一转轴；3-壳体；4-铁芯；5-线圈绕组；6-碳刷；7-集电环；8-第二转轴；9-气隙；10-离心开关；11-固定盘；12-固定机座；K-电气开关。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
实施例1
如图1所示，本实施例的一种绕组式永磁转差离合器，包括有同轴设置的永磁转子和绕组转子，永磁转子与第一转轴2联接，绕组转子与第二转轴8联接，永磁转子和绕组转子之间有气隙9，永磁转子包括永磁体1和固定永磁体1的壳体3；绕组转子包括线圈绕组5和铁芯4，所述铁芯4设为叠片铁芯或者卷绕式铁芯，线圈绕组5形成回路，通过电气开关K控制回路的接通与断开；永磁转子与绕组转子的安装满足如下条件：线圈绕组5回路闭合状态下，且两根转轴旋转方向一致、转速不同时，实现转矩传递，离合器处于结合状态；线圈绕组回路断开状态下，离合器处于分离状态。
具体如图1所示，电气开关K设置多个分开关，本发明采用电气开关K 的通、断来控制永磁转差离合器的接合和分离，使得离合器的操控简单、自如，可手工控制离合也可自动控制离合；在本发明中，无需设置其他的部件如位置传感器等来对该离合装置进行检测，只需要对电气开关K的具体接合情况进行调节即可实现对本发明所述离合器所产生的电磁转矩进行调节，其涉及部件少，结构简单；同时，在本发明中，对离合器绕组转子的控制仅通过所述电气开关K，而无需提供其他配置，其所需电源直接由线圈回路提供，从而减少了外部能源的消耗；综上，该离合器不仅结构简单，便于安装、调试和操作，而且还减少了外部能耗。
具体地，本实施例优选所述永磁体1N极、S极在壳体3上交替排布；其中，所述线圈绕组5上缠绕一相绕组或者对称连接的任意多相绕组，同时还可以将所述线圈绕组5设为整距式分布绕组。
在本实施例中，所述铁芯4设为所述叠片铁芯，所述叠片铁芯沿轴线方向成型有若干斜槽，所述线圈绕组5嵌入在所述斜槽中；该种结构的叠片铁芯不仅能消除齿槽定位转矩，而且还能削弱开槽引起的齿谐波，从而改善绕组转子中的电流波形。
当然，作为可变换的实施方式，还可以选择将所述永磁体转子设为永磁体斜极转子，这样也能即能消除齿槽定位转矩，而且还能削弱开槽引起的齿谐波，从而改善绕组转子中的电流波形。
事实上，当线圈绕组5断开时，离合器内部之间还是存在一定的转矩，因此，本实施例优选所述叠片铁芯或卷绕式铁芯采用若干电工硅钢片，且相邻所述电工硅钢片之间进行绝缘处理；其中，在本实施例中，优选所述电工硅钢片的厚度不大于0.2mm，从而最大程度上削弱叠片铁芯在交变磁场的作用下产生涡流进而产生的转矩。当然还可以根据实际情况选取所述电工硅钢片的厚度大于0.2mm。
所述第二转轴8上安装有集电环7和与之配合的碳刷6，所述线圈绕组5通过集电环7和碳刷6与电气开关K相连接，如图1所示。
当然，作为可变换的实施方式，所述电气开关K可以直接固定在第二 转轴8上，用无线控制其通断，其相对于所述电气开关K被设为外接开关可以取消设置碳刷6和集电环7。
同时，述电气开关K还可以设为限流开关；当负载增加，绕组转子的线圈绕组5的电流上升，当电流上升超过限定值时，即系统过载外接开关跳断，离合器分离，自动实现保护系统功能。
实施例2
作为可变换的实施方式，本实施例与实施例1的不同之处在于：
在本实施例中，还可以在所述第二转轴8上安装有可进行超速保护的离心开关10或速度传感器；在本实施例中优选在所述第二转轴8上安装离心开关10，如图2所示，从而使该离合器实现超速保护功能。当实际转速超过离心开关10设定的转速后，离心开关10的配重块因离心力的作用发生偏转，则触点开关断开线圈绕组5，离合器分离，实现了保护系统的功能；当然也可以采用设置速度传感器给出超速信号，然后断开电气开关K实现超速保护功能。
实施例3
作为可变换的实施方式，本实施例与实施例1的不同之处在于：
作为可变换的实施方式，本实施例与实施例1的不同之处在于：所述绕组转子与所述永磁转子同轴水平布置，所述绕组转子通过固定盘11安装在所述第二转轴8上，如图3所示。
实施例4
作为可变换的实施方式，本实施例与实施例1的不同之处在于：
如图4所示，本实施例优选在所述电气开关K外接可调电阻，设有外接可调电阻的离合装置可以实现软启动功能，适用于驱动端没有软启动功能、负载端为大转动惯量或重载的系统。
实施例5
作为可变换的实施方式，本实施例与实施例1的不同之处在于：
如图5所示，本实施例优选在所述电气开关K外接串级调速控制系统；而设有外接串级调速控制系统的离合装置可以实现优异的调速功能。
实施例6
作为可变换的实施方式，本实施例与实施例1的不同之处在于：
如图6所示，在实施例1-5的基础上，进一步提供一种实施例1-5所述的绕组式永磁转差离合器的应用，该绕组式永磁转差离合器作为制动器应用的原理如下：采用固定基座12固定绕组转子，线圈绕组5回路闭合状态下，永磁转子的第一转轴2逐步制动，实现制动器功能。
实施例7
作为可变换的实施方式，本实施例与实施例1的不同之处在于：
如图7所示，在实施例1-5的基础上，进一步提供一种实施例1-5所述的绕组式永磁转差离合器的应用，该绕组式永磁转差离合器作为制动器应用的原理如下：采用固定基座12固定永磁转子，线圈绕组5回路闭合状态下，绕组转子的第二转轴8逐步制动，实现制动器功能。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (12)

  1. 绕组式永磁转差离合器，其特征在于：包括有同轴设置的永磁转子和绕组转子，永磁转子与第一转轴(2)联接，绕组转子与第二转轴(8)联接，永磁转子和绕组转子之间有气隙(9)，永磁转子包括永磁体(1)和固定永磁体(1)的壳体(3)；绕组转子包括线圈绕组(5)和铁芯(4)，所述铁芯(4)设为叠片铁芯或者卷绕式铁芯，线圈绕组(5)形成回路，通过电气开关(K)控制回路的接通与断开；永磁转子与绕组转子的安装满足如下条件：线圈绕组回路闭合状态下，且两根转轴旋转方向一致、转速不同时，实现转矩传递，离合器处于结合状态；线圈绕组回路断开状态下，离合器处于分离状态。
  2. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述永磁体(1)的N极和S极在壳体(3)上交替排布。
  3. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述线圈绕组(5)上缠绕一相绕组或者对称连接的任意多相绕组。
  4. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述铁芯(4)设为所述叠片铁芯，所述叠片铁芯沿轴线方向成型有若干斜槽，所述线圈绕组(5)嵌入在所述斜槽中。
  5. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述永磁体转子设为永磁体斜极转子。
  6. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述叠片铁芯或卷绕式铁芯采用电工硅钢片制成，相邻所述电工硅钢片之间进行绝缘处理。
  7. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述电 气开关(K)直接固定在第二转轴(8)上，用无线控制其通断。
  8. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述电器开关设为外接开关，所述第二转轴(8)上安装有集电环(7)和与之配合的碳刷(6)，所述线圈绕组(5)通过集电环(7)和碳刷(6)与所述电气开关(K)相连接。
  9. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述第二转轴(8)上安装有可进行超速保护的离心开关(10)或速度传感器。
  10. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述电气开关(K)设为限流开关。
  11. 根据权利要求1所述的绕组式永磁转差离合器，其特征是：所述电气开关(K)外接可调电阻或外接串级调速控制系统。
  12. 一种权利要求1-11任一项所述的绕组式永磁转差离合器的应用，其特征是：固定永磁转子，线圈绕组回路闭合状态下，绕组转子的第二转轴(8)制动，实现制动器功能；或固定绕组转子，线圈绕组回路闭合状态下，永磁转子的第一转轴(2)制动，实现制动器功能。
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