CN103580446A - Torque limitation universal type permanent magnet coupler - Google Patents
Torque limitation universal type permanent magnet coupler Download PDFInfo
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- CN103580446A CN103580446A CN201310539288.5A CN201310539288A CN103580446A CN 103580446 A CN103580446 A CN 103580446A CN 201310539288 A CN201310539288 A CN 201310539288A CN 103580446 A CN103580446 A CN 103580446A
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Abstract
The invention discloses a torque limitation universal type permanent magnet coupler. The torque limitation universal type permanent magnet coupler comprises two inner turntables which can slide on an input shaft and two outer turntables which are connected with an output shaft. The two inner turntables and the input shaft are in non-rotating connection. A torque limitation mechanism is further arranged between the two inner turntables. The two outer turntables are respectively and fixedly connected with a bearing pedestal, the insides of the bearing pedestals are respectively and fixedly connected with a bearing, and the two ends of the input shaft are supported on the two bearings respectively. The input shaft is provided with two shaft end baffles, the two inner turntables can slide along the input shaft between the two shaft end baffles, the inner sides of the shaft end baffles are limited by shaft shoulders, and the outer sides of the shaft end baffles abut against the inner rings of the bearings through space rings. Due to the fact that the two ends of the input shaft are supported on the outer turntables through the bearings, the axial position of the input shaft relative to the outer turntables is fixed, disk friction caused by the axial movement of a motor can be prevented, hence, normal operation of the torque limitation universal type permanent magnet coupler is guaranteed, and the service life of the permanent magnet coupler is prolonged.
Description
Technical field
The present invention relates to a kind of permanent magnetism coupling device, be specifically related to a kind of universal permanent magnetism coupling device for torque limiting, overload protection.
Background technology
Common drive system is mainly comprised of motor, shaft coupling and load, and conventional shaft coupling has: positive coupling, gear coupling, roller chain coupling, diaphragm coupling, spring coupling etc., above these without exception be to adopt hardwired mode, namely shaft coupling together turns round with two be connected axles in the process of transmitting motion and power, with the ratio of 1:1, the rotating speed of motor is delivered on load equipment.It has following characteristics: 1) high rigidity, high torque (HT), low inertia; 2) high pulling torque carrying, high moment of torsion rigidity and remarkable sensitivity; 3) zero revolution gap, identical with turning anticlockwise characteristic clockwise; 4) non-maintaining, superpower anti-oil and corrosion resistance.
But traditional shaft coupling joint transmission also exists more problem, major embodiment in the following areas:
One, conventional motors adopts hard reboot mode, and large Current on Grid during startup impacts larger, affects grid supply quality; Injury electrical machine insulation, reduces electrical machinery life; On coil of stator of motor and rotor squirrel-cage bar, produce very large impulsive force, can cause motor tightly dead, winding deformation, the faults such as squirrel-cage bar fracture.
Two, motor is when hard reboot, larger to load equipment impact, affects useful life.
Three, between motor and load, be conventional mechanical connection, therefore the vibration of load can be passed on motor, the bearing in motor and load equipment and seal are easily frayed, affect motor useful life.
Four, power of motor utilance is low, for guaranteeing to tackle different operating modes, is often greater than actual power demand during choice of electrical machine, and when work motor often in light condition, the permanent moment of torsion operation of motor certainly will cause waste of energy.
Five, cannot realize overload protection, when load equipment generation stall, motor probably overloads because its power rising internal current is excessive, causes heating and even burns.
The problems referred to above have limited and have adopted hardwired shaft coupling in the application of some occasion of having relatively high expectations.And permanent magnetism coupling device, the especially application of torque limited type permanent magnetism coupling device based on permanent magnet transmission technology can address the above problem preferably.
Permanent magnet transmission is to realize by motor the torque transfer to load by the air gap between copper or aluminium conductor and permanent magnet.Machinery-free link between the driving of this technology (motor) and driven (load), its operation principle is that the conductor induced field by the permanent magnet of one end and the other end interacts and produces torque, finally reaches the object of transmitting torque.
Chinese utility model patent CN201020105226.5 discloses a kind of permanent magnet torque-limiting coupler, comprises two coaxial axles, and cage rotor is installed on power shaft, four rotating disks, consist of, two, outside outer rotary table, connects with bearing pin therebetween, two inner rotary tables in inner side can slide on bearing pin; Between two inner rotary tables, the permanent magnetic rotation disc being connected with output shaft is housed, on two outer rotary tables, torque limiting device is housed, this device comprises base, stylolitic part, torque spring, axle, nut, pad, on base, there is counterbore, be bolted on the rotating disk of outside or all can on the rotating disk of inner side, have a stylolitic part above, middle with torque spring connection, torque spring is through on the axle of being fixed by nuts and washers.In this structure, cage rotor is comprised of inside and outside four rotating disks altogether, adds permanent magnetic rotation disc, has 5 rotating disks, complex structure, and volume is larger, is unfavorable for being applied in the occasion of some limited space system.
Chinese utility model patent CN201320158716.5 discloses a kind of torque limited type permanent magnetism coupling device, comprise two inner rotary tables that can slide on power shaft, and two outer rotary tables that are connected with output shaft, the back side of one of them inner rotary table is fixed with the push rod extending vertically, another inner rotary table is provided with resigning hole and the block relative with described push rod, one end of block is arranged on the back side of described inner rotary table by a rotating shaft, another terminal block of block is on the aperture of resigning hole, when block rotates with inner rotary table, described block rotates around the axis and removes from the aperture of resigning hole under the effect from the centre of force.When system overload, moment of torsion increase; it is large that speed discrepancy between inside and outside rotating disk becomes; axial force between them also increases thereupon; inner rotary table is pushed open by outer rotary table; until two inner rotary tables are run into mutually; at this moment the gap between inside and outside rotating disk is very large, and the transferable moment of torsion of permanent magnetism coupling device is very little, so just makes engine be protected.
But; in these distance-limiting type magnetic couplings, the axial location of power shaft is unfixing above; can only guarantee by the installation site of motor shaft the axial location between power shaft and output shaft; and some motor shaft usually has axle and alters phenomenon and occur; that rotating disk being connected on motor shaft will be done the movement in axial range with motor shaft; when inside and outside rotating disk turns round under minimum clearance; once axle occurs motor shaft, alter; between inside and outside rotating disk, just likely produce wiping dish, then affect the normal use of distance-limiting type magnetic coupling.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of universal permanent magnetism coupling device of limit square of avoiding occurring between interior outer rotary table grazing, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: the universal permanent magnetism coupling device of a kind of limit square, comprise two inner rotary tables that can slide on power shaft, and two outer rotary tables that are connected with output shaft, between two inner rotary tables and power shaft without being rotationally connected, between two inner rotary tables, be also provided with Xian Ju mechanism, on described two outer rotary tables, each fixes a bearing pedestal, in bearing pedestal, each fixes a bearing, the two ends of power shaft are bearing in respectively on described two bearings, power shaft is provided with two axle end baffle plates, two inner rotary tables can slide along power shaft between two axle end baffle plates, the inner side of axle end baffle plate is spacing by the shaft shoulder, the outside of axle end baffle plate withstands on the inner ring of bearing by spacer ring.
Preferably, described Xian Ju mechanism comprises the push rod being arranged on one of them inner rotary table and is arranged on resigning hole and the block on another inner rotary table, described push rod is relative with resigning hole, one end of block is arranged on the back side of described inner rotary table by a rotating shaft, another terminal block of block is on the aperture of resigning hole, when block rotates with inner rotary table, described block rotates around the axis and removes from the aperture of resigning hole under the effect from the centre of force.
More preferably, be provided with a torsion spring between described block and inner rotary table, torsion spring set is in rotating shaft and make block gear on the aperture of resigning hole.
Preferably, described two inner rotary tables are conductor rotating disk, and described two outer rotary tables are permanent magnetic rotation disc.
Preferably, between described two outer rotary tables, by polylith air gap plate and Duo Gen bolt, connect into cage type.
More preferably, described outer rotary table comprises master sheet, is fixed on the bracket panel sheet on master sheet and is fixed on the permanent magnet on bracket panel sheet.
More preferably, two bearing pedestals are separately fixed at by screw on the master sheet of two outer rotary tables, and described bearing pedestal comprises the flange portion being connected with master sheet and the back-up ring portion contacting with the outer ring of bearing.
Preferably, the part of described power shaft between two axle end baffle plates is square shaft, and the center of described inner rotary table is provided with square hole.
Compared with prior art, the present invention has the following advantages: because the two ends of power shaft are bearing on outer rotary table by bearing, power shaft is fixed with respect to the axial location of outer rotary table, thereby can make the axial movement that is arranged on the inner rotary table on power shaft be restricted, prevent from altering and causing wiping dish because of motor shaft, thereby guaranteed the normal operation of distance-limiting type permanent magnetism coupling device, extended the useful life of permanent magnetism coupling device.
Accompanying drawing explanation
Fig. 1 is a kind of structure cutaway view of limitting the universal permanent magnetism coupling device of square of the present invention.
Fig. 2 is the structure cutaway view of a kind of outer rotary table in the present invention.
Fig. 3 is the package assembly decomposing schematic representation of two inner rotary tables and power shaft in the present invention.
Fig. 4 is the STRUCTURE DECOMPOSITION schematic diagram of an inner rotary table in the present invention.
Fig. 5 is the view of the present invention while limitting square universal permanent magnetism coupling device inner rotary table and outer rotary table to throw off.
In figure: 1, power shaft 2, output shaft 3, inner rotary table 4, inner rotary table
5, outer rotary table 6, outer rotary table 7, spacer ring 8, air gap plate
9, bolt 11, square shaft 12, axle end baffle plate 13, the shaft shoulder
14, screw 35, square hole 48, push rod 40, resigning hole
41, front disc 42, back side disc 43, slide block fixed head 45, square hole
47, rotating shaft 48, block 49, torsion spring 51, master sheet
52, bracket panel sheet 53, permanent magnet 61, master sheet 62, bracket panel sheet
63, permanent magnet 71, bearing pedestal 72, bearing 711, flange portion
712, back-up ring portion
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, those skilled in the art can more clearly understand other advantages of the present invention and effect thus.
It should be noted that the structure that Figure of description illustrates, ratio, size etc. only in order to coordinate embodiment, more clearly understand design of the present invention for those skilled in the art, not in order to limit the scope of the invention.The adjustment of the modification of any structure, the change of proportionate relationship or size, in the situation that not affecting effect of the present invention and object and reaching, within all should still dropping on protection scope of the present invention.For convenience of description, the relative position relation of each parts is to be described according to the Butut mode of Figure of description, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
As shown in Figure 1, the universal permanent magnetism coupling device of a kind of limit square of the present invention, comprise a power shaft 1 that can be connected with motor and an output shaft 2 that can be connected with load equipment, on power shaft 1, being provided with two can be along power shaft inner rotary table 3,4 in axial sliding, in order to limit the sliding scale of inner rotary table 3,4, on power shaft 1, being fixed with 12, two inner rotary tables of two axle end baffle plates 3,4 can only slide between two axle end baffle plates 12.Between two inner rotary tables 3,4 and power shaft 1, without being rotationally connected, this can be designed to noncircular cross section by power shaft 1, or realizes by the spline structures such as spline are set.
As shown in Figure 3, in a preferred embodiment of the invention, axle end baffle plate 12 is fixed on the shaft shoulder 13 of power shaft 1 by screw 14, the inner side of axle end baffle plate 12 is spacing by the shaft shoulder 13, the part of power shaft 1 between two axle end baffle plates 12 is square shaft 11, and the center of inner rotary table 3,4 is provided with square hole 35,45 and square shaft 11 is slidably matched.
As shown in Figure 1, between 5,6, two outer rotary tables 5,6 of two outer rotary tables of arranged outside of two inner rotary tables 3,4, be fixedly connected with and be connected with output shaft 2.The front of two inner rotary tables 3,4 is parallel relative with two outer rotary tables 5,6 respectively, and the gap between inner rotary table and outer rotary table forms the air gap of permanent magnetism coupling device.Between two inner rotary tables 3,4, be provided with Xian Ju mechanism, for controlling the air gap between inner rotary table and outer rotary table, reach the effect of restriction institute transmitting torque, foregoing prior art discloses multiple Xian Ju mechanism.
As Figure 1 and Figure 4, it comprises and is fixed therein a push rod 38 on inner rotary table 3 and is arranged on resigning hole 40 and the block 48 on another inner rotary table 4 in a kind of preferred Xian Ju mechanism.Described push rod 38 is fixed on the back side of inner rotary table 3, extend vertically, and with resigning hole 40 over against; One end of block 48 is arranged on the back side of described inner rotary table 4 by a rotating shaft 47, the other end of block 48 just in time keeps off on the aperture of resigning hole 40 under initial condition.
As shown in Figure 1, on two outer rotary tables 5,6, each fixes a bearing pedestal 71, in bearing pedestal 71, each fixes a bearing 72, the two ends of power shaft 1 are bearing in respectively on these two bearings 72, the outside of axle end baffle plate 12 withstands on the inner ring of bearing 72 by a spacer ring 7, obviously, spacer ring 7 can adopt integral structure with axle end baffle plate 12, also can adopt split-type structural.Like this, the shaft shoulder in power shaft 1 left side withstands on the inner ring of left side bearing 72 by axle end baffle plate 12, the spacer ring 7 in left side, has realized left limit; The shaft shoulder on power shaft 1 right side withstands on the inner ring of right side bearing 72 by axle end baffle plate 12, the spacer ring 7 on right side, realized right limit, be that power shaft 1 is fixed the position on axle with respect to two outer rotary tables 5,6, can there is not left and right play, when be connected with power shaft 1 motor shaft generation axial endplay time, can not be with driven input shaft 1 play together, make inner rotary table and outer rotary table can not come in contact (wiping dish).
As shown in Figure 2, between two outer rotary tables 5,6, by polylith air gap plate 8 and Duo Gen bolt 9, connect into cage type, middle cavity is used for holding inner rotary table.Outer rotary table 5,6 comprises master sheet 51,61, bracket panel sheet 52,62 and permanent magnet 53,63, and permanent magnet 53,63 is fixed on bracket panel sheet 52,62, and bracket panel sheet 52,62 is fixed on again on master sheet 51,61.Two symmetrical installations of bearing pedestal 71, by screw, be separately fixed on the master sheet 51,61 of two outer rotary tables, bearing pedestal 71 comprises the flange portion 711 being connected with master sheet 51,61 and the back-up ring portion 712 contacting with the outer ring of bearing 72, the outside axial motion of back-up ring portion 712 restriction bearing 72.
Relative inner rotary table and the outer rotary table of pair of parallel in the present invention, corresponding to a pair of synergistic conductor rotating disk and the permanent magnetic rotation disc of permanent magnetism coupling device, in other words, if inner rotary table is conductor rotating disk, outer rotary table is permanent magnetic rotation disc so; If inner rotary table is permanent magnetic rotation disc, outer rotary table is conductor rotating disk so.
In following preferred embodiment of the present invention, two inner rotary tables 3,4 are set to conductor rotating disk, and two outer rotary tables 5,6 are set to permanent magnetic rotation disc, because conductor rotating disk is relatively light, thin, as inner rotary table, can more be conducive to slide, improve reliability, and reduce the volume of permanent magnetism coupling device.
As shown in Figure 4, the inner rotary table 4 on right side is a conductor rotating disk, and it consists of front disc 41 and back side disc 42, and front disc 41 can be made by copper or aluminum, and back side disc 42 can be made by Steel material.A slide block fixed head 43 is fixed on back side disc 42, and resigning hole 40 and block 48 are also arranged on back side disc 42, and the rotating shaft 47 consisting of shaft shoulder screw is through one end of block 48.A torsion spring 49 is enclosed within rotating shaft 47, one end of torsion spring 49 is fixed on back side disc 42, the other end is connected on block 48 and makes block 48 inwardly be resisted against the edge (as shown in Figure 3) of slide block fixed head 43, and under this initial condition, the other end of block 48 now also just in time keeps off on the aperture of resigning hole 40.
Below in conjunction with Fig. 1 and Fig. 5, operation principle of the present invention is described.
The present invention is when work, and power shaft 1 is connected with motor, and output shaft 2 is connected with load equipment.Under the initial condition just having started at motor, between inner rotary table 3,4 and outer rotary table 5,6, there is obvious slippage, produce repulsion, because inner rotary table 3,4 can endwisely slip, the air gap between inner rotary table 3,4 and outer rotary table 5,6 can become large, but because block 48 has blocked resigning hole 40, thereby limited moving axially of push rod 38, under the effect of push rod, air gap is limited in rational scope, when motor speed is raised to maximum from 0, it is minimum that the slippage of inside and outside rotating disk also reduced to gradually within several seconds.So just realize the soft start of motor, can effectively reduce the impact of electric motor starting to drive system.
The slippage of inside and outside rotating disk reduces to after minimum, two inner rotary tables 3,4 also slide into outermost, be abutted together with axle end baffle plate 12 (state as shown in Figure 1), but now between inside and outside rotating disk, still keep a minimal air gap, so just can obtain maximum magnetic field effect, the high pulling torque of motor can be passed to load equipment.Even if, because the position of power shaft 1 is fixed by bearing, can there is not wiping dish between inside and outside rotating disk in now motor shaft generation play yet.When motor is in rated speed lower time, the inner rotary table rotating with motor shaft also reaches rated speed, and the block 48 on inner rotary table 4 overcomes the active force of torsion spring under centrifugal action, rotates around the axis and removes from the aperture of resigning hole 40, exposes resigning hole 40.
Under state at inner rotary table with motor High Rotation Speed, if load equipment generation stall and while causing outer rotary table rotating speed to reduce, between inside and outside rotating disk, slippage becomes large, produce repulsion, make to receive in inner rotary table, it is large that air gap becomes, thereby play the effect of limiting motor output torque; Once load equipment generation stall, cause the complete stall of outer rotary table; slippage is 100%; between inside and outside rotating disk, very large repulsion will be produced; two inner rotary tables 3,4 are inwardly received rapidly mutually; because resigning hole 40 has exposed; push rod 38 can insert (state as shown in Figure 5) in resigning hole 40; make inner rotary table 3,4 enough distances of can inwardly sliding; until the active force between inside and outside rotating disk becomes very faint; empty load of motor is rotated; can, because load stall makes burn-down of electric motor, not reach the function of automatic overload protection.
After motor stalling, inside and outside rotating disk remains static, and inner rotary table 3,4 again can be because the suction in the magnetic field outer rotary table to both sides slides, and air gap returns to the minimum state before startup, block 48 again blocks resigning hole 40 under the effect of torsion spring, has realized automatically reset function.
The present invention possesses buffer starting, torque limited, automatically resets, can not wiping dish, the advantage such as separating vibration, energy savings, long service life, can adapt to various adverse circumstances, can be widely used in the transmission occasion that motor-driven reliability and failure rate etc. are had higher requirements.
Certainly, above is only concrete exemplary applications of the present invention, and protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other execution mode.All employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the present invention's scope required for protection.
Claims (8)
1. limit the universal permanent magnetism coupling device of square for one kind, comprising can be at upper two inner rotary table (3 that slide of power shaft (1), 4), and two outer rotary tables (5 that are connected with output shaft (2), 6), two inner rotary tables (3, 4) and between power shaft without being rotationally connected, two inner rotary tables (3, 4) between, be also provided with Xian Ju mechanism, it is characterized in that, described two outer rotary tables (5, 6) upper each fixed a bearing pedestal (71), in bearing pedestal (71), each fixes a bearing (72), the two ends of power shaft (1) are bearing in respectively on described two bearings (72), power shaft (1) is provided with two axle end baffle plates (12), two inner rotary tables (3, 4) can between two axle end baffle plates (12), along power shaft (1), slide, the inner side of axle end baffle plate (12) is spacing by the shaft shoulder, the outside of axle end baffle plate (12) withstands on the inner ring of bearing (72) by spacer ring (7).
2. permanent magnetism coupling device according to claim 1, it is characterized in that, described Xian Ju mechanism comprises the push rod (38) being arranged on one of them inner rotary table (3) and is arranged on resigning hole (40) and the block (48) on another inner rotary table (4), described push rod (38) is relative with resigning hole (40), one end of block (48) is arranged on the back side of described inner rotary table (4) by a rotating shaft (47), another terminal block of block (48) is on the aperture of resigning hole (40), when block (48) rotates with inner rotary table (4), described block (48) under the effect from the centre of force around the shaft (47) rotate and remove from the aperture of resigning hole (40).
3. permanent magnetism coupling device according to claim 2, is characterized in that, between described block (48) and inner rotary table (4), is provided with a torsion spring (49), and torsion spring (49) is enclosed within rotating shaft (47) and goes up and make block (48) gear on the aperture of resigning hole (40).
4. permanent magnetism coupling device according to claim 1, is characterized in that, described two inner rotary tables (3,4) are conductor rotating disk, and described two outer rotary tables (5,6) are permanent magnetic rotation disc.
5. according to the permanent magnetism coupling device described in claim 1 or 4, it is characterized in that, between described two outer rotary tables (5,6), by polylith air gap plate (8) and many bolts (9), connect into cage type.
6. permanent magnetism coupling device according to claim 4, is characterized in that, described outer rotary table (5,6) comprises master sheet (51,61), is fixed on the bracket panel sheet (52,62) on master sheet and is fixed on the permanent magnet (53,63) on bracket panel sheet.
7. permanent magnetism coupling device according to claim 6, it is characterized in that, the master sheet (51,61) that two bearing pedestals (71) are separately fixed at two outer rotary tables by screw is upper, and described bearing pedestal (71) comprises the flange portion (711) being connected with master sheet (51,61) and the back-up ring portion (712) contacting with the outer ring of bearing (72).
8. permanent magnetism coupling device according to claim 1, is characterized in that, the part of described power shaft (1) between two axle end baffle plates (12) is square shaft (11), and the center of described inner rotary table (3,4) is provided with square hole (35,45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539288.5A CN103580446A (en) | 2013-11-04 | 2013-11-04 | Torque limitation universal type permanent magnet coupler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539288.5A CN103580446A (en) | 2013-11-04 | 2013-11-04 | Torque limitation universal type permanent magnet coupler |
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| CN103580446A true CN103580446A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310539288.5A Pending CN103580446A (en) | 2013-11-04 | 2013-11-04 | Torque limitation universal type permanent magnet coupler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065237A (en) * | 2014-06-04 | 2014-09-24 | 李启飞 | Non-governor disk type magnetic coupler |
| CN104660007A (en) * | 2015-01-30 | 2015-05-27 | 安徽沃弗电力科技有限公司 | Double-support permanent magnet eddy-current flexible transmission |
| CN104967267A (en) * | 2015-06-17 | 2015-10-07 | 江苏磁谷科技股份有限公司 | Constant-torque permanent magnet coupler |
| CN105782383A (en) * | 2016-05-19 | 2016-07-20 | 上海市东方海事工程技术有限公司 | Permanent magnet transmission device of pumping unit and pumping unit |
| CN106026612A (en) * | 2016-05-20 | 2016-10-12 | 上海市东方海事工程技术有限公司 | Totally-closed foreign material invasion prevention torque-limited permanent magnet coupler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5477094A (en) * | 1993-05-21 | 1995-12-19 | Magna Force, Inc. | Permanent magnet coupling and transmission |
| US20010009340A1 (en) * | 1999-10-18 | 2001-07-26 | Lamb Karl J. | Self unloading magnetic coupler |
| CN1543700A (en) * | 2001-07-03 | 2004-11-03 | Self-unloading magnetic coupler | |
| CN201043581Y (en) * | 2007-03-03 | 2008-04-02 | 杭州前进齿轮箱集团有限公司 | Braking mechanism of step-up box |
| CN103178689A (en) * | 2013-04-01 | 2013-06-26 | 上海曜中能源科技有限公司 | Torque-limitation type permanent magnetic coupler |
| CN203674954U (en) * | 2013-11-04 | 2014-06-25 | 上海曜中能源科技有限公司 | Universal permanent magnet coupler of torque-limiting type |
-
2013
- 2013-11-04 CN CN201310539288.5A patent/CN103580446A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5477094A (en) * | 1993-05-21 | 1995-12-19 | Magna Force, Inc. | Permanent magnet coupling and transmission |
| US20010009340A1 (en) * | 1999-10-18 | 2001-07-26 | Lamb Karl J. | Self unloading magnetic coupler |
| CN1543700A (en) * | 2001-07-03 | 2004-11-03 | Self-unloading magnetic coupler | |
| CN201043581Y (en) * | 2007-03-03 | 2008-04-02 | 杭州前进齿轮箱集团有限公司 | Braking mechanism of step-up box |
| CN103178689A (en) * | 2013-04-01 | 2013-06-26 | 上海曜中能源科技有限公司 | Torque-limitation type permanent magnetic coupler |
| CN203674954U (en) * | 2013-11-04 | 2014-06-25 | 上海曜中能源科技有限公司 | Universal permanent magnet coupler of torque-limiting type |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065237A (en) * | 2014-06-04 | 2014-09-24 | 李启飞 | Non-governor disk type magnetic coupler |
| CN104660007A (en) * | 2015-01-30 | 2015-05-27 | 安徽沃弗电力科技有限公司 | Double-support permanent magnet eddy-current flexible transmission |
| CN104660007B (en) * | 2015-01-30 | 2018-04-17 | 安徽沃弗电力科技有限公司 | Dual-gripper permanent-magnet eddy current flexibility speed changer |
| CN104967267A (en) * | 2015-06-17 | 2015-10-07 | 江苏磁谷科技股份有限公司 | Constant-torque permanent magnet coupler |
| CN104967267B (en) * | 2015-06-17 | 2017-04-26 | 江苏磁谷科技股份有限公司 | Constant-torque permanent magnet coupler |
| CN105782383A (en) * | 2016-05-19 | 2016-07-20 | 上海市东方海事工程技术有限公司 | Permanent magnet transmission device of pumping unit and pumping unit |
| CN106026612A (en) * | 2016-05-20 | 2016-10-12 | 上海市东方海事工程技术有限公司 | Totally-closed foreign material invasion prevention torque-limited permanent magnet coupler |
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