CN201708761U - 一种筒型电磁调速系统 - Google Patents

一种筒型电磁调速系统 Download PDF

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CN201708761U
CN201708761U CN2010201946751U CN201020194675U CN201708761U CN 201708761 U CN201708761 U CN 201708761U CN 2010201946751 U CN2010201946751 U CN 2010201946751U CN 201020194675 U CN201020194675 U CN 201020194675U CN 201708761 U CN201708761 U CN 201708761U
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soft magnetic
magnetic bodies
drum rotor
slip ring
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王大志
马忠威
崔箫
江宁
王旭
周玮仑
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MAGNA MAGNETOMOTIVE CO., LTD.
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ANSHAN QINYUAN ENERGY-SAVING EQUIPMENT MANUFACTURING Co Ltd
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Abstract

本实用新型涉及一种筒型电磁调速系统，包括内筒转子、外筒转子、导电滑环、电刷、直流电源，内筒转子设置于输入轴端，外筒转子设置在输出轴端，内筒转子与外筒转子同轴嵌套，所述内筒转子上设置有软磁体，软磁体上设有线圈，与软磁体对应位置的外筒转子上设有永磁体，所述的输入轴上还设有导电滑环，导电滑环与电刷相配合，电刷分别与直流电源的正负极相连接，导电滑环与线圈通过导线相连接。所述的内筒转子上设置的软磁体，其周向相邻软磁体所绕线圈旋向相反，轴向相邻软磁体所绕线圈方向相同。本实用新型的有益效果是：内筒转子上的软磁体，减少退磁现象，实现对输出轴转速的控制；筒型结构产生电磁强，永磁体面积也很大，提高了做功效率。

Description

一种筒型电磁调速系统
技术领域
本实用新型涉及工业控制领域，尤其涉及一种筒型电磁调速系统。
背景技术
目前变频调速广泛应用在工业现场中，通过控制电机输入频率来控制电机输出转速，价格比较昂贵，结构和操作复杂，变频器的电力电子器件工作在开关状态，因而产生大量谐波污染电网，影响通讯，并且对环境的要求较高，不适合在恶劣环境中工作。随着科技的发展，永磁耦合调速系统应运而生。其通过调节永磁体和铜盘之间的气隙来改变输出转矩，从而实现调速的目的。这类磁耦合系统的缺陷是：磁体体积小，产生力矩小，调速范围有限；结构复杂，增加了设计难度；易产生退磁现象。
发明内容
本实用新型的目的是提供一种筒型电磁调速系统，实现系统的稳定调速，避免退磁现象，简化结构。
为实现上述目的，本实用新型通过以下技术方案实现：
一种筒型电磁调速系统，包括内筒转子、外筒转子、导电滑环、电刷、直流电源，内筒转子设置于输入轴端，外筒转子设置在输出轴端，内筒转子与外筒转子同轴嵌套，所述内筒转子上设置有软磁体，软磁体上设有线圈，与软磁体对应位置的外筒转子上设有永磁体，所述的输入轴上还设有导电滑环，导电滑环与电刷相配合，电刷分别与直流电源的正负极相连接，导电滑环与线圈通过导线相连接。
所述的内筒转子上设置的软磁体，其周向相邻软磁体所绕线圈旋向相反，轴向相邻软磁体所绕线圈方向相同。
所述的软磁体与内筒转子间、永磁体与外筒转子间还设有铁衬。
所述的永磁体和软磁体为一个套在另一个外面的套筒式结构。
所述的软磁体与永磁体均为瓦形。
所述的电刷与电源之间还设有调节线圈内电流的大小的电流调节器。
与现有技术相比，本实用新型的有益效果是：1)其输入轴和输出轴采用电磁耦合的方式连接，取代传统的钢性连接，降低轴间同轴度的精度要求；2)内筒转子上的软磁体，为低矫顽力和高磁导率的磁性材料，减少退磁现象，其瓦形结构，可以得到均匀的环形气隙，与筒型相吻合，有利于提高传动扭矩，加入铁衬，有利于形成闭合磁路，减少回路磁阻；3)采用电磁调速原理，通过电流调节器控制电流大小和方向，实现电磁磁性的大小和方向的控制；4)在每组软磁体与永磁体单独产生的力矩基础上，相邻的软磁体与永磁体组也产生力矩合力，所以它产生的力矩大于单组软磁体与永磁体产生的力矩，提高了工作效率；5)开放式筒型结构，有效防止涡流发热，不必设计散热装置，简化了结构，并且筒型结构产生电磁强，永磁体面积也很大，因此产生的力矩也大，提高了做功效率。
附图说明
图1是本实用新型的结构示意图；
图2是图1的A-A剖视图；
图3是图1的B-B剖视图。
图中：1-内筒转子  2-外筒转子  3-导电滑环  4-电刷  5-直流电源  6-输入轴7-输出轴  8-软磁体  9-线圈  10-铁衬  11-永磁体  12-导线  13-导线  14-电流调节器  15-铁衬  16-气隙
具体实施方式
下面结合附图对本实用新型的具体实施方式作进一步说明：
见图1、图2，一种筒型电磁调速系统，包括内筒转子1、外筒转子2、导电滑环3、电刷4、直流电源5，内筒转子1设置于输入轴6端，输入轴6为空心结构，外筒转子2设置在输出轴7端，内筒转子1与外筒转子2同轴嵌套，所述内筒转子1上设置有软磁体8，软磁体8上设有线圈9，软磁体8与内筒转子1间还设有铁衬10，与软磁体8对应位置的外筒转子2上设有永磁体11，软磁体8与永磁体11之间有一定气隙16，永磁体11与外筒转子2间设有铁衬15，加入铁衬有利于形成闭合磁路，减少回路磁阻；所述的输入轴6上还设有导电滑环3，导电滑环3与电刷4相配合，一对电刷4分别与直流电源5的正负极相连接，导电滑环3与线圈9通过导线12、导线13相连接，导线12和导线13的数量与软磁体8轴向数量相等，实施例中选择三组导线，分别给三组软磁体8通电流。所述的软磁体8为瓦形硅钢片(铁硅合金)，永磁体11为瓦形钕铁硼磁铁，软磁体8为瓦形结构，与筒型相吻合，可以得到均匀的环形气隙，有利于提高传动扭矩，所述的电刷4与直流电源5之间还设有电流调节器14，电流调节器14可以调节线圈9中电流的大小，从而改变软磁体8产生的磁性力矩的大小，实现输出轴7的输出转速的控制。
见图3，所述的内筒转子1上设置的软磁体8，其周向相邻软磁体8所绕线圈9旋向相反，使其产生不同的极性，轴向相邻软磁体8所绕线圈9方向相同，使其产生相同的极性。在轴向每组软磁体与永磁体电磁耦合产生的力矩基础上，相邻的软磁体与永磁体组也产生力矩合力，所以它产生的力矩大于单组软磁体与永磁体产生的力矩，提高了工作效率。
当输入轴6带动内筒转子1转动时，内筒转子1上的软磁体8与外筒转子2上的永磁体11之间产生一个偏角，形成的磁场产生扭矩，带动外筒转子2转动，从而带动输出轴7转动，实现转矩的输出。为提高转矩的输出，轴向方向可设置3～6排磁体对，实施例中设置了3排，它们之间能互相产生力矩，所以大幅提高了效率。
本实用新型采用开放式筒型结构，能有效防止涡流发热，不必设计散热装置，简化了结构，并且筒型结构产生的电磁力更强，永磁体面积也很大，因此产生的力矩也大，提高了做功的效率。

Claims (5)

1.一种筒型电磁调速系统，其特征在于，包括内筒转子、外筒转子、导电滑环、电刷、直流电源，内筒转子设置于输入轴端，外筒转子设置在输出轴端，内筒转子与外筒转子同轴嵌套，所述内筒转子上设置有软磁体，软磁体上设有线圈，与软磁体对应位置的外筒转子上设有永磁体，所述的输入轴上还设有导电滑环，导电滑环与电刷相配合，电刷分别与直流电源的正负极相连接，导电滑环与线圈通过导线相连接。
2.根据权利要求1所述的一种筒型电磁调速系统，其特征在于，所述的内筒转子上设置的软磁体，其周向相邻软磁体所绕线圈旋向相反，轴向相邻软磁体所绕线圈方向相同。
3.根据权利要求1或2所述的一种筒型电磁调速系统，其特征在于，所述的软磁体与内筒转子间、永磁体与外筒转子间还设有铁衬。
4.根据权利要求1或2所述的一种筒型电磁调速系统，其特征在于，所述的软磁体与永磁体均为瓦形。
5.根据权利要求1所述的一种筒型电磁调速系统，其特征在于，所述的电刷与电源之间还设有调节线圈内电流大小的电流调节器。 
CN2010201946751U 2010-05-19 2010-05-19 一种筒型电磁调速系统 Expired - Lifetime CN201708761U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362831A (zh) * 2014-12-05 2015-02-18 刁俊起 一种固定磁隙的永磁调速器
CN104362829A (zh) * 2014-12-05 2015-02-18 刁俊起 一种固定磁隙的永磁调速器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362831A (zh) * 2014-12-05 2015-02-18 刁俊起 一种固定磁隙的永磁调速器
CN104362829A (zh) * 2014-12-05 2015-02-18 刁俊起 一种固定磁隙的永磁调速器
CN104362831B (zh) * 2014-12-05 2016-08-31 刁俊起 一种固定磁隙的永磁调速器

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