CN109936276A - A kind of permanent magnetism Flexible Transmission gear - Google Patents
A kind of permanent magnetism Flexible Transmission gear Download PDFInfo
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- CN109936276A CN109936276A CN201910197587.2A CN201910197587A CN109936276A CN 109936276 A CN109936276 A CN 109936276A CN 201910197587 A CN201910197587 A CN 201910197587A CN 109936276 A CN109936276 A CN 109936276A
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- Prior art keywords
- gear
- permanent magnets
- permanent
- flexible transmission
- hub
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Abstract
A kind of permanent magnetism Flexible Transmission gear is made of gear, magnetic coupling pair and gear hub (axis) etc., and magnetic coupling pair is made of the permanent magnet combination of two groups of different-diameters；First set of permanent magnets is arranged on fillet of gear circumferential surface, and the second set of permanent magnets is arranged on the outer circumference surface of gear hub (axis).The permanent magnet circumference of first set of permanent magnets and the second set of permanent magnets is arranged according to N, S arrangement/Halbach array that is staggered.This permanent magnetism Flexible Transmission gear is different from single conventional gears; it is the gear with flexible and overload protection function; torque is transmitted using the magnetic force for being divided into two groups of permanent magnets in magnetic coupling pair; two groups of set of permanent magnets at magnetic coupling pair a flexible angle can be generated in transmission process; the size of torque is transmitted according to transmission gear and is changed in flexible angle; impact force is generated because of the rotary inertia of load in starting or acceleration to buffer unloading gear train, effectively avoids gear impact acceleration from fractureing, the problems such as noise is big, rippling.
Description
Technical field
This patent is related to gear transmission technology field, and in particular, to a kind of permanent magnetism Flexible Transmission gear.
Background technique
Mechanical gear be deceleration, speedup power transmission in one of important part, application is almost throughout in work
In the every profession and trades such as agricultural, being introduced into of mechanical gear transmission device solves in power drive system torque and revolving speed is matched asks
Topic, but the problems such as gear drive also brings such as vibration, noise, reliability and need to be regularly maintained to transmission system.In addition, big
In medium-sized increasing, speed reducer, the impact of gear also will cause the serious problems such as spot corrosion, the broken teeth of gear teeth face.In some special works
In condition such as the transmission process not at the uniform velocity of frequent positive and negative rotation, unexpected speedup or deceleration, the hardness impact of gear teeth face will lead to tooth
The wheel service life substantially shortens.
Summary of the invention
This patent the technical problem to be solved is that overcome easy tooth-breaking existing for gear drive in the prior art, noise it is big,
The problems such as service life is short.
For this purpose, this patent provides a kind of permanent magnetism Flexible Transmission gear, which includes gear, magnetic coupling
Secondary and gear hub, wherein magnetic coupling pair is made of the first set of permanent magnets and the second set of permanent magnets, the fixed setting of the first set of permanent magnets
On the inner peripheral surface of gear, the second set of permanent magnets is fixedly installed on the outer circumference surface of gear hub, solid between gear and gear hub
It is fixed；Gears and gears hub has same shaft centre line, the gear with the first set of permanent magnets and the tooth for having the second set of permanent magnets
Wheel hub can be relatively rotated around shaft centre line.
Preferably, which further includes bearing, and gear and gear hub are done axially and radially by bearing
It is fixed；Gear, bearing and gear hub have same shaft centre line.
Preferably, it is processed on the outer circumference surface of gear with teeth.
Optionally embodiment, the first set of permanent magnets can also be fixed on the outer circumference surface of gear；Gear
It is processed on inner peripheral surface with teeth.
Preferably, the coupling of shaft system of the inner peripheral surface of gear hub and power train.
Optionally embodiment, the second set of permanent magnets can also be fixed on the inner peripheral surface of gear hub；Wheel hub
Outer circumference surface and power train coupling of shaft system.
Preferably, magnetic coupling pair is formed by two groups of set of permanent magnets circumference uniform distribution interlaced arrangements, two groups of set of permanent magnets radial direction sides
To there are air gaps, torque is transmitted by the magnetic force property between set of permanent magnets.
Optionally embodiment, gear hub can be rotated synchronously with gear, can also be with asynchronous rotary.
Optionally embodiment, either synchronously or asynchronously depends on magnetic coupling pair, and magnetic coupling pair composition can be two groups forever
Magnet also could alternatively be one group of permanent magnet and one group of spinning disk combination.
The arrangement of optionally embodiment, the first set of permanent magnets and/or the second set of permanent magnets can be Haier
Bake array arrangement, or common N/S interlaced arrangement
Through the above technical solutions, this patent has the following technical effect that:
1, the permanent magnetism Flexible Transmission gear in this patent be flexible can buffer gear cold, by an original overall gear split
At gear and gear hub (axis), increase a pair of of magnetic coupling pair between gear and gear hub (axis), using between magnetic coupling pair
Gear hub (axis) and gear are formed flexible gear by magnetic force, and power is transferred to by " gear hub (axis) -- magnetic coupling pair -- gear "
Next stage gear.
2, the magnetic coupling pair in this patent can be by two groups of set of permanent magnets at can also be by one group of permanent magnet and one group of spinning disk
Combination is formed, and is transmitted between two groups of permanent magnets of magnetic coupling pair or between one group of permanent magnet and one group of spinning disk by magnetic force dynamic
Power, the inventive features of the permanent magnetism Flexible Transmission gear are the flexible angles of magnetic coupling pair, and flexible angle is according to transmission gear transmission force
The size of square and change, to buffer unloading gear train generate impact force because of the rotary inertia of load in starting or acceleration,
Effectively gear impact acceleration is avoided to fracture, the problems such as noise is big, rippling.
3, it is disposed with permanent magnet on the inner peripheral surface of this patent middle gear, outer circumference surface is with teeth, the permanent magnet on inner periphery
With the set of permanent magnets that is arranged on gear hub (axis) external peripheral surface at magnetic coupling pair, the junior of tooth and power train is passed on outer circumference surface
Moving gear intermeshing transmitting torque power.
4, the permanent magnetism Flexible Transmission gear in this patent transmits the maximum magnetic force that torque is greater than magnetic coupling pair in power train
It can skid when square, i.e., have slipping protection effect in overload, to protect gear, extend the service life of gear-box.
5, the radial direction bearing or sliding bearing of this patent middle gear radial direction and gear hub (axis) support, and are used for
Keep first group of permanent magnet of magnetic coupling pair and the gap radial equipartition of second group of permanent magnetism.
6, this patent middle (center) bearing supports fixed gear and gear hub (axis) axial freedom.Guarantee circumference freedom degree, magnetic coupling
Closing secondary flexible angle makes the relative rotation of gear hub (axis) and gear axis.
Other feature and advantage of this patent will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to further understand for providing to this patent, and constitute part of specification, with following tool
Body embodiment is used to explain this patent together, but does not constitute the limitation to this patent.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the permanent magnetism Flexible Transmission gear of this patent.
Fig. 2 is the cross-sectional view of the permanent magnetism Flexible Transmission gear of this patent.
Fig. 3 is the flexible angle schematic diagram of the permanent magnetism Flexible Transmission gear of this patent.
Fig. 4 is the structural schematic diagram of another preferred embodiment of this patent.
Fig. 5 is the cross-sectional view of another preferred embodiment of this patent.
Description of symbols
1. gear；2. magnetic coupling pair；3. bearing；4. gear hub (axis)；5. the first set of permanent magnets；6 second set of permanent magnets；a.
Flexible angle；δ magnetic coupling pair air gap.
Specific embodiment
Specific implementation of the patent mode is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining this patent, is not limited to this patent.
Embodiment one
As shown in Figure 1, 2, the permanent magnetism Flexible Transmission gear of this patent is by gear 1, magnetic coupling pair 2, bearing 3, gear hub
(axis) 4 forms.Wherein, magnetic coupling pair 2 is made of the first set of permanent magnets 5 and the second set of permanent magnets 6, and the first set of permanent magnets 5 is uniformly distributed
It is arranged on the inner peripheral surface of gear 1, the second set of permanent magnets 6 is uniformly arranged on the excircle circumferential surface of gear hub (axis) 4, and first
There is gap between set of permanent magnets 5 and the second set of permanent magnets 6, two groups of set of permanent magnets of magnetic coupling pair 2 have own magnetic force property, every
Kongxiang mutual coupling transmits torque and power.
Wherein, it is supported between 1 both ends of the surface of gear and gear hub (axis) 4 by bearing 3, bearing 3 can be rolling bearing
But sliding bearing, the effect of bearing 3 make the first set of permanent magnets 5 being fixed on gear hub (axis) 1 and fixed gear hub (axis) 4
On the second set of permanent magnets 6 between coupling air gap delta it is uniform；Guarantee the axle center in gear 1 outer circle axle center and gear hub (axis) 4 simultaneously
With one heart.Bearing 3 goes back axial move axially with gear hub (axis) 4 of limiting gear 1 and misplaces.This outer bearing 3 also guarantees that magnetic coupling pair 2 is soft
Property angle a around gear 1 and gear hub (axis) 4 around the rotation in axle center.
With specific reference to shown in Fig. 2, magnetic coupling pair 2 is made of the first set of permanent magnets 5 and the second set of permanent magnets 6, the first permanent magnetism
Body group 5 is fixed on the inner peripheral surface of gear 1, and the first set of permanent magnets 5 is by several permanent magnet circumference uniform distribution interlaced arrangement shapes
At.Second set of permanent magnets 6 is fixed on the outer circumference surface of gear hub (axis) 4, and the second set of permanent magnets 6 is justified by several permanent magnets
Zhou Junbu interlaced arrangement is formed.There are air gap delta between first set of permanent magnets 5 and the second set of permanent magnets 6, this air gap is torque of magnetic force
Air gap transmits torque by the magnetic force that permanent magnet generates.
Fig. 3 shows the secondary flexible angle a schematic diagram of magnetic coupling of this patent.Magnetic coupling pair flexibility angle α explanation: the first permanent magnet
The permanent magnet of the second set of permanent magnets of permanent magnet 6 of group 5 corresponds, and the corresponding angle of each magnetic patch is " 360 °/magnetic patch quantity ",
In not torque suspension torque, the pole inside and outside permanent magnet N, the pole S are corresponded, and when by running torque load moment, inside and outside permanent magnet will form one
A dislocation corner, for the size for the corner that misplaces depending on the size of torque force, torque force is bigger, and error angle is bigger, works as torque force
When greater than maximum magnetic torque between magnetic pole, skidding will be generated, when interior outer magnetic pole does not stress and by between maximum magnetic pull
Rotary angle be flexibility angle α.Flexible angle α transmits the size of torque according to transmission gear and changes, when gear transmits
Torque when increasing or start suddenly, the flashy impact force of gear that flexible angle α can be buffered plays the protection entire tooth of gear
The effect of train, effectively avoid gear impact acceleration from fractureing, spot corrosion the problems such as.
The transmission process of gear train of the invention illustrates: the torque of gear train is from 4-magnetic coupling pair of gear hub (axis)
2-gears 1, gear 1 are transmitted to the next stage gear of gear train by the tooth of outer circle, to realize the transmitting of torque.
Flexible gear can be fixed on the axis in power train by gear hub (axis) 4 with through hole key combination, but also
Gear hub (axis) 4 is processed into gear shaft.
Conventional gears are typically all to pass through key or be interference fitted to be mounted on transmission shaft, are the rigid gears of an entirety,
There is very big impact force in gear-box starting or load suddenly, it is larger to the impact of gear, it be easy to cause the flank of tooth to fracture.With biography
The transmission gear structure of system is compared, and this patent increases magnetic coupling pair between gear hub (axis) and gear, utilizes the magnetic of permanent magnet
Power transmits torque, belongs to flexible gear, can effectively unload impact force, avoids broken teeth, and that improves gear power case uses the longevity
Life.The permanent magnetism flexible gear of this patent is different from single conventional gears and magnetic gear, but falls between, and both compensates for
Conventional gears impact when broken teeth, noise, service life the problems such as, and improve permanent magnet utilization rate.
Embodiment two
Fig. 4,5 are another preferred embodiment of the invention, and comparative example one is outer flexible gear, and embodiment two is
Interior flexible gear, processes on the inner peripheral surface of gear ring 1 with teeth, and the first set of permanent magnets 5, gear hub (axis) 4 are arranged on outer circumference surface
The second set of permanent magnets 6 is provided on inner peripheral surface.
It is preferably carried out scheme as another, Halbach array can also be used in the arranged scheme of inside and outside permanent magnet
Arrangement.Halbach array is known by those skilled in the art, and it is not described here in detail.
The preferred embodiment of this patent is described in detail in conjunction with attached drawing above, still, this patent is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of this patent, a variety of letters can be carried out to the technical solution of this patent
Monotropic type, these simple variants belong to the protection scope of this patent.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, this patent to it is various can
No further explanation will be given for the combination of energy.
Claims (10)
1. a kind of permanent magnetism Flexible Transmission gear, it is characterised in that: the permanent magnetism Flexible Transmission gear includes gear, magnetic coupling pair and tooth
Wheel hub, wherein magnetic coupling pair is made of the first set of permanent magnets and the second set of permanent magnets, and the first set of permanent magnets is fixed at gear
Inner peripheral surface on, the second set of permanent magnets is fixedly installed on the outer circumference surface of gear hub, fixed between gear and gear hub；Gear
There is same shaft centre line with gear hub, gear with the first set of permanent magnets and the gear hub with the second set of permanent magnets can be around
Shaft centre line relatively rotates.
2. a kind of permanent magnetism Flexible Transmission gear as described in claim 1, it is characterised in that: the permanent magnetism Flexible Transmission gear also wraps
Bearing is included, gear and gear hub are fixed by bearing；Gear, bearing and gear hub have same shaft centre line.
3. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 2, it is characterised in that: be machined on the outer circumference surface of gear
Tooth.
4. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 2, it is characterised in that: the first set of permanent magnets can also be fixed and be set
It sets on the outer circumference surface of gear；It is processed on the inner peripheral surface of gear with teeth.
5. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 2, it is characterised in that: the inner peripheral surface of gear hub and transmission
The coupling of shaft system of system.
6. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 2, it is characterised in that: the second set of permanent magnets can also be fixed and be set
It sets on the inner peripheral surface of gear hub；The outer circumference surface of wheel hub and the coupling of shaft system of power train.
7. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 2, it is characterised in that: magnetic coupling pair is by two groups of set of permanent magnets
Circumference uniform distribution interlaced arrangement is formed, and there are air gaps for two groups of set of permanent magnets radial directions, by the magnetic force property between set of permanent magnets
Transmit torque.
8. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 2, it is characterised in that: gear hub synchronous can turn with gear
It is dynamic, it can also be with asynchronous rotary.
9. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 8, it is characterised in that: either synchronously or asynchronously depend on magnetic coupling
Pair, magnetic coupling pair composition can be two groups of permanent magnets, also could alternatively be one group of permanent magnet and one group of spinning disk combination.
10. a kind of permanent magnetism Flexible Transmission gear as claimed in claim 2, it is characterised in that: the first set of permanent magnets and/or second
The arrangement of set of permanent magnets can be Halbach array arrangement, or common N/S interlaced arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197587.2A CN109936276A (en) | 2019-03-15 | 2019-03-15 | A kind of permanent magnetism Flexible Transmission gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197587.2A CN109936276A (en) | 2019-03-15 | 2019-03-15 | A kind of permanent magnetism Flexible Transmission gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109936276A true CN109936276A (en) | 2019-06-25 |
Family
ID=66987203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910197587.2A Pending CN109936276A (en) | 2019-03-15 | 2019-03-15 | A kind of permanent magnetism Flexible Transmission gear |
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| Country | Link |
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| CN (1) | CN109936276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775699A (en) * | 2021-08-30 | 2021-12-10 | 中国第一汽车股份有限公司 | Magnetic damping transmission device for friction roller way conveying line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006009898A (en) * | 2004-06-24 | 2006-01-12 | Koyo Seiko Co Ltd | Power transmission device |
| KR20080047752A (en) * | 2006-11-27 | 2008-05-30 | 현대자동차주식회사 | Diminishing device of gear rattle noise for manual transmission |
| CN102545538A (en) * | 2012-02-20 | 2012-07-04 | 上海电机学院 | Halbach disc type magnetic coupling |
| CN106545616A (en) * | 2016-12-22 | 2017-03-29 | 重庆大学 | The transmission gear group of beat noise can be suppressed |
| CN206250950U (en) * | 2016-11-30 | 2017-06-13 | 江苏磁谷科技股份有限公司 | A kind of cantilever style permanent-magnet synchronous coupler |
-
2019
- 2019-03-15 CN CN201910197587.2A patent/CN109936276A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006009898A (en) * | 2004-06-24 | 2006-01-12 | Koyo Seiko Co Ltd | Power transmission device |
| KR20080047752A (en) * | 2006-11-27 | 2008-05-30 | 현대자동차주식회사 | Diminishing device of gear rattle noise for manual transmission |
| CN102545538A (en) * | 2012-02-20 | 2012-07-04 | 上海电机学院 | Halbach disc type magnetic coupling |
| CN206250950U (en) * | 2016-11-30 | 2017-06-13 | 江苏磁谷科技股份有限公司 | A kind of cantilever style permanent-magnet synchronous coupler |
| CN106545616A (en) * | 2016-12-22 | 2017-03-29 | 重庆大学 | The transmission gear group of beat noise can be suppressed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775699A (en) * | 2021-08-30 | 2021-12-10 | 中国第一汽车股份有限公司 | Magnetic damping transmission device for friction roller way conveying line |
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Application publication date: 20190625 |
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| RJ01 | Rejection of invention patent application after publication |