CN107516970A - An Adjustable Speed Permanent Magnet Magnetic Coupler - Google Patents
An Adjustable Speed Permanent Magnet Magnetic Coupler Download PDFInfo
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- CN107516970A CN107516970A CN201710608811.3A CN201710608811A CN107516970A CN 107516970 A CN107516970 A CN 107516970A CN 201710608811 A CN201710608811 A CN 201710608811A CN 107516970 A CN107516970 A CN 107516970A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
- H02K7/125—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking magnetically influenced
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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
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
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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
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Abstract
Description
技术领域technical field
本发明涉及一种磁力耦合器，尤其涉及一种可调速的永磁磁力耦合器，属于动力机械传动技术领域。The invention relates to a magnetic coupler, in particular to a speed-adjustable permanent magnet magnetic coupler, which belongs to the technical field of power machinery transmission.
背景技术Background technique
永磁磁力耦合器也称磁力联轴器或永磁传动装置，其主要由铜转子、永磁转子和控制器三个部分组成。一般，铜转子与电机轴连接，永磁转子与工作机的轴连接，铜转子和永磁转子之间有空气间隙，没有传递扭矩的机械连接。这样，电机和工作机之间形成了软磁连接，通过调节气隙来实现工作机轴扭矩、转速的变化。Permanent magnet magnetic coupling is also called magnetic coupling or permanent magnet transmission, which is mainly composed of three parts: copper rotor, permanent magnet rotor and controller. Generally, the copper rotor is connected to the motor shaft, and the permanent magnet rotor is connected to the shaft of the working machine. There is an air gap between the copper rotor and the permanent magnet rotor, and there is no mechanical connection for torque transmission. In this way, a soft magnetic connection is formed between the motor and the working machine, and the shaft torque and rotational speed of the working machine can be changed by adjusting the air gap.
永磁磁力耦合器传动是传动技术、材料技术、制造技术的集成，因其具有轻载启动、过载保护、减缓冲击、隔离扭振等优异特性，所以应用在大惯量、难启动的机械上，能够改变落后的传统方式，节能显著。The transmission of permanent magnet magnetic coupling is the integration of transmission technology, material technology and manufacturing technology. Because of its excellent characteristics such as light-load start-up, overload protection, shock absorption, and torsional vibration isolation, it is applied to large-inertia and difficult-to-start machinery. It can change the backward traditional way and save energy significantly.
二十一世纪制造技术不但将继续制造常规条件下运行的机器与设备，而且将制造出极端环境下运行的机械设备，制造的产品应是符合节能和生态环保，与人友好的绿色产品，永磁涡流传动技术正是适应这一发展态势应运而生的。Manufacturing technology in the 21st century will not only continue to manufacture machines and equipment operating under normal conditions, but also manufacture machinery and equipment operating under extreme environments. Magnetic eddy current drive technology is just to adapt to this development trend came into being.
随着新技术、新工艺、新结构的不断出现，必将迎来永磁涡流传动技术发展的新阶段。With the continuous emergence of new technologies, new processes, and new structures, a new stage in the development of permanent magnet eddy current drive technology will surely be ushered in.
传统的永磁盘式涡流永磁磁力耦合器由于滑差大，铜盘或铜套中产生较大的涡流，导致耦合器系统的热损大、效率低，不适合大功率的机电传动设备。Due to the large slip, the traditional permanent disk eddy current permanent magnetic coupler generates large eddy currents in the copper disk or copper sleeve, resulting in large heat loss and low efficiency of the coupler system, and is not suitable for high-power electromechanical transmission equipment.
永磁式异步永磁磁力耦合器采用异步电机的鼠笼转子，较好地解决了铜转子发热的问题，但相对于同体积的永磁体而言，其能量转换效率低，所能传递的扭矩较小，永磁体的磁损大，效率低。The permanent magnet asynchronous permanent magnet magnetic coupler adopts the squirrel cage rotor of the asynchronous motor, which solves the problem of heat generation of the copper rotor, but compared with the permanent magnet of the same volume, its energy conversion efficiency is low, and the torque that can be transmitted Smaller, the magnetic loss of the permanent magnet is large, and the efficiency is low.
发明内容Contents of the invention
本发明的目的是，提供一种可调速的永磁磁力耦合器，该可调速的永磁磁力耦合器通过外部电机提供动力，带动永磁体外转子转动，在磁耦合作用下带动永磁体内转子一起转动，当调速齿轮转动时，带动圆筒形齿条沿着动力输入轴的轴向移动，推动外转子轴向移动，实现调整耦合面积大小的作用，改变了负载端的扭矩及转速大小，达到调速的目的。The object of the present invention is to provide a speed-adjustable permanent magnet magnetic coupler, which is powered by an external motor to drive the outer rotor of the permanent magnet to rotate, and drives the permanent magnet to rotate under the action of magnetic coupling. The internal rotor rotates together. When the speed regulating gear rotates, it drives the cylindrical rack to move axially along the power input shaft, and pushes the outer rotor to move axially to realize the effect of adjusting the size of the coupling area, changing the torque and speed of the load end. Size, to achieve the purpose of speed regulation.
本发明为实现上述目的所采用的技术方案是，一种可调速的永磁磁力耦合器，其特征在于，包括外壳体，外壳体内设置有外转子、内转子、第一永磁体、导体环、第二永磁体、支撑铝环、调速装置总成和与驱动电机连接的动力输入轴；其中：内转子的外圆周面上轴向位置设置有一环形凹槽，环形凹槽内嵌入安装有第一永磁体和导体环，外转子在圆周内侧开设凹槽，凹槽内插入第一永磁体；The technical solution adopted by the present invention to achieve the above object is an adjustable speed permanent magnet magnetic coupling, which is characterized in that it includes an outer casing, and an outer rotor, an inner rotor, a first permanent magnet, and a conductor ring are arranged in the outer casing. , the second permanent magnet, the supporting aluminum ring, the speed regulating device assembly and the power input shaft connected with the drive motor; wherein: an annular groove is arranged in the axial position on the outer circumferential surface of the inner rotor, and a ring groove is embedded in the ring groove. The first permanent magnet and the conductor ring, the outer rotor has a groove on the inner side of the circumference, and the first permanent magnet is inserted into the groove;
内转子上的第一永磁体与外转子上的第一永磁体数量均为若干，内转子上的第一永磁体与外转子上的第一永磁体一一对应地，分别以磁极极性相反的方式面对面布置；The number of the first permanent magnets on the inner rotor and the first permanent magnets on the outer rotor are several, and the first permanent magnets on the inner rotor correspond to the first permanent magnets on the outer rotor one by one, and the magnetic poles are opposite to each other. arranged face to face;
所述外转子为两段式一体结构，呈阶梯形圆筒状，从左至右分为A段与B段，A段的内径大于B段的内径，A段与B段的壁厚一致；The outer rotor is a two-stage integrated structure, which is in the shape of a stepped cylinder and is divided into A section and B section from left to right. The inner diameter of A section is larger than that of B section, and the wall thickness of A section and B section is the same;
上述内转子呈圆筒状，通过键连接的方式装配在永磁磁力耦合器的动力输出轴的右端；所述内转子插入外转子A段的内圈中，内转子的第一永磁体和导体环与外转子的第一永磁体之间留有空气气隙；The above-mentioned inner rotor is in the shape of a cylinder, and is assembled on the right end of the power output shaft of the permanent magnet magnetic coupler through a key connection; the inner rotor is inserted into the inner ring of the A section of the outer rotor, and the first permanent magnet of the inner rotor and the conductor There is an air gap between the ring and the first permanent magnet of the outer rotor;
上述动力输出轴的左端从外壳体的左端面伸出；The left end of the above-mentioned power output shaft protrudes from the left end surface of the outer casing;
上述外转子的A段的轴向长度大于内转子的轴向长度；The axial length of section A of the outer rotor is greater than the axial length of the inner rotor;
所述动力输入轴为阶梯轴，两头细中间粗，分为左段、中段和右段，其中，左段和右段的直径相等；The power input shaft is a stepped shaft, with two ends thinner and the middle thicker, divided into a left section, a middle section and a right section, wherein the diameters of the left section and the right section are equal;
在动力输入轴左段装配有第一滚动轴承；上述第一滚动轴承的内圈与所述动力输入轴的端面贴合、外圈与支撑铝环的内圈配合；A first rolling bearing is installed on the left section of the power input shaft; the inner ring of the first rolling bearing is attached to the end face of the power input shaft, and the outer ring is matched with the inner ring of the supporting aluminum ring;
所述外壳体为分体式组合结构，包括左外壳体和有外壳体两部分，左外壳体的左端设置有轴孔，右外壳体的右端设置有带内螺纹的轴孔；The outer casing is a split-type combined structure, including two parts: a left outer casing and an outer casing. The left end of the left outer casing is provided with a shaft hole, and the right end of the right outer casing is provided with a shaft hole with an internal thread;
所述支撑铝环分别与外壳体左部分的右端面和外壳体右部分的左端面固定连接；The supporting aluminum ring is respectively fixedly connected with the right end surface of the left part of the outer casing and the left end surface of the right part of the outer casing;
上述外转子的B段内壁面设置有花键，并通过该花键与动力输入轴的左端连接；The inner wall surface of section B of the outer rotor is provided with a spline, and is connected to the left end of the power input shaft through the spline;
上述动力输入轴的最左端设置有与螺帽配合的螺纹，动力输入轴的最右端从所述外壳体的右端面伸出，伸出端通过联轴器与外部驱动电机的输出轴连接，外部驱动电机驱动上述外转子运动，进而通过磁力耦合驱使内转子转动，由上述的动力输出轴输出动力；The leftmost end of the above-mentioned power input shaft is provided with a screw thread matched with the nut, and the rightmost end of the power input shaft protrudes from the right end surface of the outer shell, and the protruding end is connected with the output shaft of the external drive motor through a coupling, and the external The driving motor drives the above-mentioned outer rotor to move, and then drives the inner rotor to rotate through magnetic coupling, and the above-mentioned power output shaft outputs power;
所述调速装置总成包括弹簧、空心丝杠、调节手柄和第三永磁体；The speed regulating device assembly includes a spring, a hollow lead screw, an adjusting handle and a third permanent magnet;
所述动力输入轴经由空心丝杠的内孔穿过，空心丝杠与动力输入轴之间留有一定的间隙，空心丝杠与右外壳体右端的带内螺纹的轴孔形成螺纹配合；The power input shaft passes through the inner hole of the hollow lead screw, and there is a certain gap between the hollow lead screw and the power input shaft, and the hollow lead screw forms a thread fit with the shaft hole with internal thread at the right end of the right outer shell;
所述空心丝杠的左端位于外壳体的内部空腔内，空心丝杠的左端端部设置有翻边，翻边上嵌入安装有一圆环形状的第三永磁体；The left end of the hollow lead screw is located in the inner cavity of the outer shell, the left end of the hollow lead screw is provided with a flanging, and a ring-shaped third permanent magnet is embedded in the flanging;
所述调节手柄以可拆卸连接方式装配在空心丝杠的右端端部；The adjusting handle is assembled on the right end of the hollow lead screw in a detachable connection;
上述外转子的外表面上套装有一护套，护套材质为隔磁材料，护套与外转子成间隙配合；护套外表面的台阶部嵌入安装有一圆环形状的第二永磁体；The outer surface of the above-mentioned outer rotor is fitted with a sheath, the material of the sheath is a magnetic isolation material, and the sheath and the outer rotor form a gap fit; the step portion of the outer surface of the sheath is embedded with a ring-shaped second permanent magnet;
所述第三永磁体与上述第二永磁体以与对方磁极极性相同的方式，左右相向、面对面布置，形成一相互排斥的磁极对；The third permanent magnet and the above-mentioned second permanent magnet are arranged facing each other left and right and facing each other in the same manner as the polarity of the opposite magnetic pole, forming a pair of magnetic poles that repel each other;
在上述的动力输入轴的最左端设置有弹簧，弹簧的左右两端分别与螺帽和外转子的左端面接触挤压；A spring is provided at the leftmost end of the above-mentioned power input shaft, and the left and right ends of the spring contact and squeeze the nut and the left end surface of the outer rotor respectively;
所述动力输出轴经联轴器与工作机的输入轴连接。The power output shaft is connected with the input shaft of the working machine through a coupling.
上述技术方案直接带来的技术效果是，一方面，可调速的永磁磁力耦合器，采用导体环和永磁体转子代替现有的鼠笼型转子，单位体积永磁体所产生的磁性更强，能量转换效率更高，所能传递的转矩更大，调速范围更广、效率得到提高；另一方面，调速机构结构简单、操作简便。The technical effect directly brought by the above technical solution is that, on the one hand, the adjustable-speed permanent magnet magnetic coupler uses a conductor ring and a permanent magnet rotor to replace the existing squirrel-cage rotor, and the magnetism produced by the permanent magnet per unit volume is stronger , the energy conversion efficiency is higher, the torque that can be transmitted is larger, the speed regulation range is wider, and the efficiency is improved; on the other hand, the speed regulation mechanism is simple in structure and easy to operate.
上述技术方案的可调速的永磁磁力耦合器，整体结构简单、紧凑，占用空间小。The speed-adjustable permanent magnet magnetic coupler of the above-mentioned technical solution has a simple and compact overall structure and takes up little space.
为更好地理解上述技术方案的技术特点，下面简要说明可调速的永磁磁力耦合器的工作原理。In order to better understand the technical features of the above technical solution, the working principle of the speed-adjustable permanent magnet magnetic coupling is briefly described below.
通过外部电机提供动力，带动外转子转动，当内转子的第一永磁体和外转子的第一永磁体正对时，在永磁体的磁力作用下外转子带动内转子一起转动；此时，与内转子相连接的动力输出轴的转速和输入转速相同，为同步状态；Power is provided by an external motor to drive the outer rotor to rotate. When the first permanent magnet of the inner rotor and the first permanent magnet of the outer rotor face each other, the outer rotor drives the inner rotor to rotate together under the magnetic force of the permanent magnet; The speed of the power output shaft connected to the inner rotor is the same as the input speed, which is a synchronous state;
当调速手柄逆时针转动时，会带动空心丝杠沿动力输入轴的轴向向右移动，嵌入安装在空心丝杠上的第二永磁体与嵌入在外转子的隔磁套上的第三永磁体所产生的斥力减小，外转子在弹簧的作用下向右移动。此时，外转子的第一永磁体和导体环的相对耦合面积增大，通过电磁感应产生电磁转矩，但内转子的第一永磁体和外转子的第一永磁体之间的耦合面积减小，外转子所能传递的转矩减小，输出转速将下降。When the speed control handle is turned counterclockwise, it will drive the hollow screw to move to the right along the axial direction of the power input shaft, and the second permanent magnet embedded on the hollow screw and the third permanent magnet embedded on the magnetic isolation sleeve of the outer rotor The repulsive force produced by the magnet decreases, and the outer rotor moves to the right under the action of the spring. At this time, the relative coupling area between the first permanent magnet of the outer rotor and the conductor ring increases, and electromagnetic torque is generated by electromagnetic induction, but the coupling area between the first permanent magnet of the inner rotor and the first permanent magnet of the outer rotor decreases Small, the torque that can be transmitted by the outer rotor decreases, and the output speed will drop.
反之，当调速手柄顺时针转动时，外转子的第一永磁体和导体环的相对耦合面积减小，通过电磁感应产生电磁转矩，但内转子的第一永磁体和外转子的第一永磁体之间的耦合面积增大，外转子所能传递的转矩增大，输出转速将上升。Conversely, when the speed control handle is turned clockwise, the relative coupling area between the first permanent magnet of the outer rotor and the conductor ring decreases, and electromagnetic torque is generated through electromagnetic induction, but the first permanent magnet of the inner rotor and the first permanent magnet of the outer rotor The coupling area between the permanent magnets increases, the torque that can be transmitted by the outer rotor increases, and the output speed will increase.
即，通过人工手动操作调节手柄即可简单快捷地进行较为精确的调速操作。That is, a more precise speed regulation operation can be performed simply and quickly by manually operating the regulating handle.
优选为，上述左外壳体左端的轴孔内装配有轴承。Preferably, a bearing is installed in the shaft hole at the left end of the left outer casing.
该优选技术方案直接带来的技术效果是，左外壳体左端的轴孔内装配有轴承，可以更好地支撑动力输出轴，降低其旋转运动过程中的摩擦系数。The technical effect directly brought by this preferred technical solution is that the shaft hole at the left end of the left outer casing is equipped with a bearing, which can better support the power output shaft and reduce the friction coefficient during its rotational movement.
进一步优选，上述调节手柄为一带中心孔的圆盘，圆盘外圆周面的内边缘处设置有一摇把，圆盘的中心孔与空心丝杠的右端端部形成轴孔配合并通过键连接。Further preferably, the adjustment handle is a disc with a central hole, and a handle is provided on the inner edge of the outer peripheral surface of the disc, and the central hole of the disc forms a shaft hole with the right end of the hollow screw and is connected by a key.
该优选技术方案直接带来的技术效果是，采用“圆盘的中心孔与空心丝杠的右端端部形成轴孔配合并通过键连接”这样一种可拆卸连接方式，便于拆装和日后的维修处理。The technical effect directly brought by this optimal technical solution is that a detachable connection method such as "the center hole of the disc and the right end of the hollow screw screw is formed into a shaft hole and connected by a key" is adopted, which is convenient for disassembly and future installation. Repair processing.
进一步优选，上述空心丝杠采用多线螺纹，其导程S满足下式(1)：Further preferably, the above-mentioned hollow lead screw adopts a multi-thread thread, and its lead S satisfies the following formula (1):
S＝np (1)；S=np(1);
上式(1)中：In the above formula (1):
p为螺距；p is the pitch;
n为线数，线数n取1～3。n is the number of lines, and the number n of lines is 1-3.
该优选技术方案直接带来的技术效果是，采用上述技术参数的多线螺纹，更适于磁力耦合器转速的快速调节。The technical effect directly brought about by this optimal technical solution is that the multi-thread thread adopting the above technical parameters is more suitable for the rapid adjustment of the rotational speed of the magnetic coupler.
进一步优选，上述外转子的轴向位移可由弹簧的压缩量Δx按下式(2)求得：Further preferably, the axial displacement of the above-mentioned outer rotor can be obtained from the compression amount Δx of the spring according to the following formula (2):
Δx＝B2S/kμ0 (2)；Δx=B 2 S/kμ 0 (2);
上式(2)中：In the above formula (2):
B为第二永磁体和第三永磁体作用面处的磁感应强度；B is the magnetic induction intensity at the second permanent magnet and the third permanent magnet action surface;
S为两个永磁体作用面的面积；S is the area of the two permanent magnet action surfaces;
k为弹簧的弹性系数；k is the elastic coefficient of the spring;
μ0为真空磁导率。μ 0 is the vacuum permeability.
该优选技术方案直接带来的技术效果是，可以更好地指导操作人员进行永磁磁力耦合器的调速操作。The direct technical effect of this preferred technical solution is that the operator can be better guided to perform the speed regulation operation of the permanent magnet magnetic coupling.
综上所述，本发明相对于现有技术具有以下有益效果：In summary, the present invention has the following beneficial effects relative to the prior art:
1、本发明可调速的永磁磁力耦合器，采用导体环和永磁体转子代替现有的鼠笼型转子，单位体积永磁体所产生的磁性更强，能量转换效率更高，所能传递的转矩更大，调速范围更广、效率得到提高。1. The speed-adjustable permanent magnet magnetic coupler of the present invention uses a conductor ring and a permanent magnet rotor to replace the existing squirrel-cage rotor. The magnetism produced by the permanent magnet per unit volume is stronger, the energy conversion efficiency is higher, and it can transfer The torque is larger, the speed range is wider, and the efficiency is improved.
2、可调速的永磁磁力耦合器，整体结构简单、紧凑，占用空间小。2. The speed-adjustable permanent magnetic coupler has a simple and compact overall structure and takes up little space.
3、通过人工手动操作调节手柄即可简单快捷地进行较为精确的调速操作。3. By manually operating the adjustment handle, it is simple and quick to carry out relatively accurate speed regulation operation.
附图说明Description of drawings
图1为本发明的可调速的永磁磁力耦合器的剖视结构示意图；Fig. 1 is the sectional structure schematic diagram of the adjustable speed permanent magnet magnetic coupler of the present invention;
图2为本发明的可调速的永磁磁力耦合器沿A-A向的剖面结构示意图；Fig. 2 is the sectional structure diagram along A-A direction of the adjustable-speed permanent magnet magnetic coupler of the present invention;
图3为本发明的可调速的永磁磁力耦合器沿轴向的磁力线分布情况的示意图。Fig. 3 is a schematic diagram of the distribution of the magnetic force lines along the axial direction of the adjustable-speed permanent magnet magnetic force coupler of the present invention.
附图标记说明：Explanation of reference signs:
1、动力输出轴；2、内转子；3、内转子第一永磁体；4、外转子第一永磁体；5、导体环；6、外转子；7、隔磁套；8、第二永磁体；9、第三永磁体；10、螺帽；11、弹簧；12、动力输入轴；13、支撑铝环；14、滚动轴承；15、空心丝杠；16、外壳体；17、调节手柄。1. Power output shaft; 2. Inner rotor; 3. First permanent magnet of inner rotor; 4. First permanent magnet of outer rotor; 5. Conductor ring; 6. Outer rotor; 7. Magnetic isolation sleeve; 8. Second permanent magnet Magnet; 9, the third permanent magnet; 10, nut; 11, spring; 12, power input shaft; 13, supporting aluminum ring; 14, rolling bearing; 15, hollow screw; 16, outer shell; 17, adjusting handle.
具体实施方式detailed description
下面将结合附图，对本发明进行详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings.
如图1至3所示，本发明的可调速的永磁磁力耦合器，包括外壳体(16)，外壳体(16)内设置有外转子(6)、动力输出轴(1)内转子(2)、第一永磁体、导体环(5)、第二永磁体(8)、支撑铝环(13)、调速装置总成和与驱动电机连接的动力输入轴(12)；其中，内转子(2)的外圆周面上轴向位置设置有一环形凹槽，环形凹槽内嵌入安装有内转子第一永磁体(3)和导体环(5)，外转子(6)在圆周内部开设凹槽，凹槽内插入外转子第一永磁体(4)，内转子(2)上的第一永磁体与外转子(6)上的第一永磁体数量均为若干，以磁极极性相反的方式面对面一一对应地布置。As shown in Figures 1 to 3, the speed-adjustable permanent magnet magnetic coupling of the present invention includes an outer casing (16), and an outer rotor (6) and a power output shaft (1) inner rotor are arranged in the outer casing (16). (2), the first permanent magnet, the conductor ring (5), the second permanent magnet (8), the supporting aluminum ring (13), the speed regulating device assembly and the power input shaft (12) connected with the drive motor; wherein, An annular groove is arranged on the outer circumferential surface of the inner rotor (2) in the axial direction, and the first permanent magnet (3) and conductor ring (5) of the inner rotor are embedded in the annular groove, and the outer rotor (6) is inside the circumference Open a groove, insert the first permanent magnet (4) of the outer rotor in the groove, the number of the first permanent magnet on the inner rotor (2) and the number of the first permanent magnet on the outer rotor (6) are several, and the magnetic pole polarity In the opposite way, face-to-face one-to-one correspondence arrangement.
上述外转子(6)为两段式一体结构，呈阶梯形圆筒状，从左至右分为A段与B段，A段的内径大于B段的内径，A段与B段的壁厚一致；The above-mentioned outer rotor (6) is a two-stage integrated structure, which is in the shape of a stepped cylinder. It is divided into A section and B section from left to right. The inner diameter of A section is larger than that of B section. consistent;
上述内转子(2)呈圆筒状，通过键连接的方式装配在永磁磁力耦合器的动力输出轴(1)的右端；上述内转子(2)插入外转子(6)A段的内圈中，内转子(2)的第一永磁体和导体环(5)与外转子(6)的第一永磁体之间留有空气气隙；The above-mentioned inner rotor (2) is in the shape of a cylinder, and is assembled on the right end of the power output shaft (1) of the permanent magnetic coupling through a key connection; the above-mentioned inner rotor (2) is inserted into the inner ring of section A of the outer rotor (6) In, there is an air gap between the first permanent magnet of the inner rotor (2) and the conductor ring (5) and the first permanent magnet of the outer rotor (6);
上述动力输出轴(1)的左端从外壳体(16)的左端面伸出；The left end of the above-mentioned power output shaft (1) protrudes from the left end face of the outer casing (16);
上述外转子(6)的A段的轴向长度大于内转子(2)的轴向长度；The axial length of section A of the outer rotor (6) is greater than the axial length of the inner rotor (2);
上述动力输入轴(12)为阶梯轴，两头细中间粗，分为左段、中段和右段，左段和右段的直径相等；在动力输入轴(12)左段的装配有第一滚动轴承(14)；上述第一滚动轴承(14)的内圈与上述动力输入轴(12)的端面贴合，外圈与支撑铝环(13)的内圈配合；The above-mentioned power input shaft (12) is a stepped shaft, with two ends thinner and the middle thicker, divided into left section, middle section and right section, and the diameters of the left section and right section are equal; the left section of the power input shaft (12) is equipped with a first rolling bearing (14); the inner ring of the above-mentioned first rolling bearing (14) fits the end face of the above-mentioned power input shaft (12), and the outer ring cooperates with the inner ring of the supporting aluminum ring (13);
上述外壳体(16)为分体式组合结构，包括左外壳体和有外壳体两部分，左外壳体的左端设置有轴孔，右外壳体的右端设置有带内螺纹的轴孔；The above-mentioned outer shell (16) is a split combined structure, including two parts, the left outer shell and the outer shell, the left end of the left outer shell is provided with a shaft hole, and the right end of the right outer shell is provided with a shaft hole with an internal thread;
上述支撑铝环(13)分别与外壳体左部分的右端面和外壳体右部分的左端面固定连接；The above-mentioned supporting aluminum ring (13) is fixedly connected with the right end surface of the left part of the outer casing and the left end surface of the right part of the outer casing respectively;
上述外转子(6)的B段内壁面设置有花键，并通过该花键与动力输入轴(12)的左端连接；The inner wall surface of section B of the outer rotor (6) is provided with a spline, and is connected to the left end of the power input shaft (12) through the spline;
上述动力输入轴(12)的最左端设置有与螺帽(10)配合的螺纹，最右端从上述外壳体(16)的右端面伸出，伸出端通过联轴器与外部驱动电机的输出轴连接，外部驱动电机驱动上述外转子(6)运动，进而通过磁力耦合驱使内转子(2)转动，由上述的动力输出轴(1)输出；The leftmost end of the above-mentioned power input shaft (12) is provided with a thread matched with the nut (10), the rightmost end protrudes from the right end face of the above-mentioned outer shell (16), and the protruding end is connected to the output of the external drive motor through a coupling. Shaft connection, the external drive motor drives the outer rotor (6) to move, and then drives the inner rotor (2) to rotate through magnetic coupling, and is output by the above-mentioned power output shaft (1);
上述调速装置总成包括弹簧(11)、空心丝杠(15)、调节手柄(17)和第三永磁体(9)；The speed regulating device assembly includes a spring (11), a hollow screw (15), an adjustment handle (17) and a third permanent magnet (9);
动力输入轴(1)经由空心丝杠(15)的内孔穿过，空心丝杠与动力输入轴之间留有一定的间隙，空心丝杠与右外壳体右端的带内螺纹的轴孔形成螺纹配合；The power input shaft (1) passes through the inner hole of the hollow screw (15), and there is a certain gap between the hollow screw and the power input shaft. The hollow screw and the shaft hole with internal thread at the right end of the right outer shell form thread fit;
上述调节手柄以可拆卸连接方式装配在空心丝杠的右端端部。The adjustment handle is assembled on the right end of the hollow lead screw in a detachable connection.
这种可拆卸连接方式优选采用如下结构形式：上述调节手柄为一带中心孔的圆盘，圆盘外圆周面的内边缘处设置有一摇把，圆盘的中心孔与空心丝杠的右端端部形成轴孔配合并通过键连接。This detachable connection method preferably adopts the following structural form: the above-mentioned adjustment handle is a disc with a central hole, a handle is arranged at the inner edge of the outer peripheral surface of the disc, and the central hole of the disc is connected to the right end of the hollow screw. Shaft-hole fits are formed and connected by keys.
上述空心丝杠(15)的内部，装有动力输入轴(12)，空心丝杠(15)和动力输入轴(12)之间留有一定的间隙，空心丝杠(15)的外圆周与外壳体(16)母丝相配合；The inside of above-mentioned hollow leading screw (15) is equipped with power input shaft (12), leaves certain gap between hollow leading screw (15) and power input shaft (12), the outer circumference of hollow leading screw (15) and Outer casing (16) mother wire cooperates;
上述空心丝杠(15)的左端带有翻边，齿条翻边的端面嵌入安装有一圆环形状的第三永磁体(9)；The left end of the above-mentioned hollow lead screw (15) has a flanging, and the end face of the rack flanging is embedded with a ring-shaped third permanent magnet (9);
上述调节手柄(17)焊接于空心丝杠(15)的右端面；The above-mentioned adjustment handle (17) is welded to the right end face of the hollow lead screw (15);
上述外转子(6)的外表面上套装有一护套，护套材质为隔磁材料，护套与外转子(6)成间隙配合；护套外表面的台阶部嵌入安装有一圆环形状的第二永磁体(8)；The outer surface of the above-mentioned outer rotor (6) is covered with a sheath, the material of the sheath is a magnetic isolation material, and the sheath and the outer rotor (6) form a clearance fit; the step on the outer surface of the sheath is embedded with a ring-shaped first Two permanent magnets (8);
上述第三永磁体(9)与上述第二永磁体(8)以与对方磁极极性相同的方式，左右相向、面对面布置，形成一相互排斥的磁极对；The above-mentioned third permanent magnet (9) and the above-mentioned second permanent magnet (8) are in the same manner as the polarity of the opposite magnetic pole, facing left and right, and arranged face-to-face, forming a pair of magnetic poles that repel each other;
在上述的动力输入轴(12)的最左端设置有弹簧(11)，弹簧(11)的左右两端分别与螺帽(10)和外转子(6)的左端面接触挤压；A spring (11) is provided at the leftmost end of the above-mentioned power input shaft (12), and the left and right ends of the spring (11) are respectively in contact with the nut (10) and the left end surface of the outer rotor (6) for extrusion;
上述动力输出轴(1)经联轴器与工作机输入轴连接。本发明一种可调速的永磁磁力耦合器工作原理：The above-mentioned power output shaft (1) is connected with the input shaft of the working machine through a shaft coupling. The working principle of a speed-adjustable permanent magnet magnetic coupler of the present invention:
通过外部电机提供动力，带动外转子(6)转动，当内转子(2)第一永磁体和外转子(6)第一永磁体(4)正对时，在永磁体的磁力作用下外转子(6)带动内转子(2)一起转动，此时与内转子(2)相连接的动力输出轴(1)的转速和输入转速相同，为同步状态；Power is provided by an external motor to drive the outer rotor (6) to rotate. When the first permanent magnet of the inner rotor (2) and the first permanent magnet (4) of the outer rotor (6) are facing each other, the outer rotor is under the magnetic force of the permanent magnet (6) Drive the inner rotor (2) to rotate together. At this time, the speed of the power output shaft (1) connected to the inner rotor (2) is the same as the input speed, which is a synchronous state;
当调速手柄(17)逆时针转动时，会带动空心丝杠(15)沿动力输入轴(12)的轴向向右移动，嵌入在空心丝杠(15)上的第二永磁体(8)与嵌入在外转子(6)隔磁套(7)上的第三永磁体(9)所产生的斥力减小，外转子(6)在弹簧(11)的作用下向右移动。此时，外转子(6)第一永磁体(4)和导体环(5)的相对耦合面积增大，通过电磁感应产生电磁转矩，但内转子(2)第一永磁体和外转子(6)第一永磁体(4)之间的耦合面积减小，外转子(6)所能传递的转矩减小，输出转速将下降。When the speed regulating handle (17) turns counterclockwise, it will drive the hollow screw (15) to move to the right along the axial direction of the power input shaft (12), and the second permanent magnet (8) embedded on the hollow screw (15) will ) and the repulsion generated by the third permanent magnet (9) embedded in the outer rotor (6) magnetic isolation sleeve (7) decreases, and the outer rotor (6) moves to the right under the action of the spring (11). At this time, the relative coupling area of the first permanent magnet (4) of the outer rotor (6) and the conductor ring (5) increases, and electromagnetic torque is generated by electromagnetic induction, but the first permanent magnet of the inner rotor (2) and the outer rotor ( 6) The coupling area between the first permanent magnets (4) decreases, the torque that can be transmitted by the outer rotor (6) decreases, and the output speed will decrease.
反之，当调速手柄(17)顺时针转动时，外转子(6)第一永磁体(4)和导体环(5)的相对耦合面积减小，通过电磁感应产生电磁转矩，但内转子(2)第一永磁体和外转子(6)第一永磁体(4)之间的耦合面积增大，外转子(6)所能传递的转矩增大，输出转速将上升。Conversely, when the speed control handle (17) turns clockwise, the relative coupling area between the first permanent magnet (4) of the outer rotor (6) and the conductor ring (5) decreases, and electromagnetic torque is generated by electromagnetic induction, but the inner rotor (2) The coupling area between the first permanent magnet and the first permanent magnet (4) of the outer rotor (6) increases, the torque that can be transmitted by the outer rotor (6) increases, and the output speed will increase.
说明：illustrate:
为保证磁力耦合器转速的快速调节，上述空心丝杠优选采用多线螺纹，其导程S满足下式(1)：In order to ensure the rapid adjustment of the speed of the magnetic coupler, the above-mentioned hollow screw preferably adopts a multi-thread thread, and its lead S satisfies the following formula (1):
S＝np (1)；S=np(1);
上式(1)中：In the above formula (1):
p为螺距；p is the pitch;
n为线数，线数n取1～3。n is the number of lines, and the number n of lines is 1-3.
并且，上述外转子的轴向位移可由弹簧的压缩量Δx按下式(2)求得：Moreover, the axial displacement of the above-mentioned outer rotor can be obtained from the compression amount Δx of the spring according to the following formula (2):
Δx＝B2S/kμ0 (2)；Δx=B 2 S/kμ 0 (2);
上式(2)中：In the above formula (2):
B为第二永磁体和第三永磁体作用面处的磁感应强度；B is the magnetic induction intensity at the second permanent magnet and the third permanent magnet action surface;
S为两个永磁体作用面的面积；S is the area of the two permanent magnet action surfaces;
k为弹簧的弹性系数；k is the elastic coefficient of the spring;
μ0为真空磁导率。μ 0 is the vacuum permeability.
Claims (5)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580448A (en) * | 2013-10-21 | 2014-02-12 | 苏州科睿特能源科技有限公司 | Flexible torque transmitting device |
| JP2014060905A (en) * | 2012-09-19 | 2014-04-03 | Toshiba Corp | Rotary electric machine |
| CN203660754U (en) * | 2014-01-16 | 2014-06-18 | 苏州科睿特能源科技有限公司 | Flexible power transmission adjusting device |
| CN106385160A (en) * | 2016-10-18 | 2017-02-08 | 河海大学 | Composite permanent magnet speed regulator with high speed ratio |
-
2017
- 2017-07-25 CN CN201710608811.3A patent/CN107516970B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014060905A (en) * | 2012-09-19 | 2014-04-03 | Toshiba Corp | Rotary electric machine |
| CN103580448A (en) * | 2013-10-21 | 2014-02-12 | 苏州科睿特能源科技有限公司 | Flexible torque transmitting device |
| CN203660754U (en) * | 2014-01-16 | 2014-06-18 | 苏州科睿特能源科技有限公司 | Flexible power transmission adjusting device |
| CN106385160A (en) * | 2016-10-18 | 2017-02-08 | 河海大学 | Composite permanent magnet speed regulator with high speed ratio |
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|---|---|---|---|---|
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| CN110601501A (en) * | 2019-11-04 | 2019-12-20 | 清华大学 | Torque-limiting permanent magnet coupling |
| CN111064342A (en) * | 2019-12-26 | 2020-04-24 | 台州市路桥鼎新阳光机电科技有限公司 | Permanent magnet transmission speed change mechanism |
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Effective date of registration: 20250303 Address after: C-310C, Industrial Building 2, Shandong University of Science and Technology Science Park, No. 579 Qianwangang Road, Huangdao District, Qingdao City, Shandong Province, China 266510 Patentee after: Qingdao shuangkong Technology Co.,Ltd. Country or region after: China Address before: 266590 No. 579, Qian Wan Gang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: SHANDONG University OF SCIENCE AND TECHNOLOGY Country or region before: China |