CN208885902U - Novel speed reducer - Google Patents
Novel speed reducer Download PDFInfo
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- CN208885902U CN208885902U CN201821263484.9U CN201821263484U CN208885902U CN 208885902 U CN208885902 U CN 208885902U CN 201821263484 U CN201821263484 U CN 201821263484U CN 208885902 U CN208885902 U CN 208885902U
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Abstract
The utility model discloses a kind of Novel speed reducers, including wave producer, flexible gear ring, it fixes rigid gear and is servo-actuated rigid gear, the flexibility gear ring is closely sheathed on wave producer periphery, it fixes rigid gear and is servo-actuated the periphery that rigid gear is sheathed on flexible gear ring both ends respectively, and fixed rigid gear and be servo-actuated rigid gear respectively with flexible gear ring engaged transmission, fixed rigid gear is equipped with the bindiny mechanism connecting with extraneous transmission machinery, rigid gear is servo-actuated equipped with retarder output connecting structure, the number of teeth of the rigid gear of fixation is different from the flexible gear ring number of teeth, the number of teeth for being servo-actuated rigid gear is identical as the flexible gear ring number of teeth, the reference circle for being servo-actuated rigid gear is consistent with the reference circle of flexible gear ring long axis, the utility model simplifies the overall structure of speed reducer, reduce manufacturing cost, it can be realized Large-torsion transmisson simultaneously, improve deceleration The service life of machine also substantially reduces speed reducer axial width, is conducive to device miniaturization, slimming development.
Description
Technical field
The utility model relates to a kind of power output device, in particular to a kind of Novel speed reducer.
Background technique
At present in mechanical processing industry, harmonic wave speed reducing machine is often used, and the composition of conventional harmonic drive is as follows:
Harmonic drive is mainly made of three basic components, i.e. cam (wave producer), flexbile gear and firm gear.Its
In:
Cam (wave producer): it is made of flexible bearing and oval cam.Cam is typically mounted on retarder input terminal,
Flexible bearing inner ring is fixed on cam, and flexible deformation ovalisation is realized by ball in outer ring.
Flexbile gear: the flexible thin-walled elastic element with outer gear ring is typically mounted on retarder output end.
Firm gear: the rigid annulus shape part with ring gear, two gear teeth, are typically secured to retarder generally more than flexbile gear
On body.
The principle of harmonic reduction are as follows: harmonic wave is used as retarder, generallys use wave producer active, firm gear fixes, is soft
Output form is taken turns, when bowlder in wave producer loading flexbile gear, forces flexbile gear to generate flexible deformation in ellipticity, makes at its long axis
Flexbile gear gear is inserted into the wheel tooth socket of firm gear, is become and is nibbled mesa-shaped state completely；And the two-wheeled gear teeth do not contact completely at its short axle, are in
Disengaged condition.By being engaged between the process of disengagement then in nibbling out or engaging-in state.When wave producer continuous rotation, force
Flexbile gear is constantly deformed, make the two-wheeled gear teeth carry out it is engaging-in, engage, nibble out, disengage during constantly change it is respective
Working condition produces so-called side set movement, so that the movement for realizing active wave producer and flexbile gear is transmitted.
The harmonic speed reducer of this kind of structure has higher requirement to flexbile gear, should generate plastic deformation and realize biography of slowing down
It is dynamic, there are higher rigidity and intensity again, realize the transmission of torque, flexbile gear is caused to be difficult to fabricate, and is used for a long time and is easy
Damage, flexbile gear is mainly using stretching bowl shaped structure of the formation with centre bore or using the at T-shaped ring structure of flange shape at present, this two
It is big that kind of structure results in flexbile gear axial dimension, it is difficult to reduce, on the one hand cause flexbile gear to be difficult to ensure sufficiently rigid, it is unbearable compared with
On the other hand large torque causes retarder axial gears to be difficult to reduce, can not adapt to the retarding device increasingly minimized design
Demand.
Utility model content
In order to overcome drawbacks described above, the utility model provides a kind of Novel speed reducer, which can be realized
While harmonic reduction, it can guarantee the overall stiffness of speed reducer, be hardly damaged, and it is slim to can be realized speed reducer axial width
Change design.
The utility model is to solve technical solution used by its technical problem: a kind of Novel speed reducer, including wave
Generator, fixes rigid gear and is servo-actuated rigid gear flexible gear ring, and the flexibility gear ring is closely sheathed on outside wave producer circumference
Side fixes rigid gear and is servo-actuated the periphery that rigid gear is sheathed on flexible gear ring both ends respectively, and fixes rigid gear and be servo-actuated
Rigid gear with flexible gear ring engaged transmission, fixes rigid gear and is equipped with the bindiny mechanism connecting with extraneous transmission machinery respectively, with
Rigid gear is moved equipped with retarder output connecting structure, the number of teeth of the rigid gear of fixation is different from the flexible gear ring number of teeth, is servo-actuated
The number of teeth of rigid gear is identical as the flexible gear ring number of teeth, and the reference circle for being servo-actuated rigid gear is consistent with the reference circle of flexible gear ring long axis.
The gear ratio flexibility gear ring number of teeth of the rigid gear of the fixation is more as a further improvement of the utility model,.
The wave producer includes oval camshaft, flexible bearing as a further improvement of the utility model,
Inner ring and flexible bearing roller, the flexible bearing ring gear fixing sleeve is outside camshaft periphery, flexible bearing inner ring
It is formed with raceway between on the inside of side and flexible gear ring, flexible bearing roller can roll in the raceway.
The bearing roller is any one in cylindrical roller and spherical roller as a further improvement of the utility model,
Kind.
It is described as a further improvement of the utility model, to be servo-actuated on the outside of rigid circumference of gear with fixed rigid gear by first
Bearing connection.
It is additionally provided with rigid flange ring as a further improvement of the utility model, the rigid flange ring is fixedly installed in
On fixed rigid gear one end end face, T shape cyclic structure is collectively formed in rigid flange ring and fixed rigid gear, is servo-actuated rigid gear and is just held
It is contained in the space on the inside of the T shape cyclic structure, the T shape cyclic structure diameter that fixed rigid gear and rigid flange ring are formed is small
One end inner sidewall on first bearing raceway has been collectively formed with being servo-actuated on rigid circumference of gear lateral wall, the roller of first bearing holds
It is contained in the first bearing raceway.
The entirety that the rigid flange ring and fixed rigid gear are integrally formed as a further improvement of the utility model,
Structure.
The first bearing is cross roller bearing, rigid flange ring as a further improvement of the utility model,
Incline structure with the level is respectively formed on the end face opposite with the rigid gear of fixation, two incline structures with the level splice shape
It is closely coupled between the adjacent rollers in first bearing raceway at half of first bearing raceway, it is also equipped in first bearing raceway
Lubricant.
It is formed with flange arrangement on the outside of the rigid circumference of gear of the fixation as a further improvement of the utility model, the method
Blue structure forms the bindiny mechanism for connecting with extraneous machine.
The rigid flange ring is far from the inside of fixed rigid gear one end and servo-actuated as a further improvement of the utility model,
Between on the outside of rigid gear and it is servo-actuated between rigid gear and wave producer and further respectively has sealing device.
The beneficial effects of the utility model are: the utility model by fixed rigid gear and be servo-actuated rigid gear respectively with flexibility
Gear both ends engaged transmission, fixed rigid gear are fixed on the machine for realizing retarded motion, are servo-actuated rigid gear and flexible gear ring
Synchro-meshing transmission, since the two number of teeth is identical, velocity of rotation is identical, forms output end by being servo-actuated rigid gear ring, carry out revolving speed with
Torque output, avoids and carries out torque output by flexbile gear, substantially increase speed reducer integral rigidity, while reducing to flexible tooth
The rigid requirements of circle, and then conventional harmonic speed reducer flexbile gear can be cancelled, it is replaced by flexible bearing outer ring, simplifies speed reducer
Overall structure, reduce manufacturing cost, while can be realized Large-torsion transmisson, improve the service life of speed reducer, it is also big
Speed reducer axial width is reduced greatly, is conducive to device miniaturization, slimming development.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is the right view of the utility model；
Fig. 4 is the perspective view of the utility model；
Fig. 5 is the three-dimensional cutaway view of the utility model；
Fig. 6 is the structural principle exploded view of the utility model；
Fig. 7 is the flexible gear ring of the utility model and is servo-actuated rigid gear engaged transmission perspective view；
Fig. 8 is the servo-actuated rigid gear and fixed rigid gear positioning structure perspective view of the utility model.
Specific embodiment
Embodiment: a kind of Novel speed reducer, including wave producer 1, flexible gear ring 2, fixed rigid gear 3 and it is servo-actuated rigid gear
4, the flexibility gear ring 2 is closely sheathed on 1 periphery of wave producer, fixes rigid gear 3 and be servo-actuated rigid gear 4 being sheathed on respectively
The periphery at flexible 2 both ends of gear ring, and fixed rigid gear 3 and be servo-actuated rigid gear 4 respectively with flexible gear ring 2 engaged transmission, Gu
Fixed rigid gear 3 is equipped with the bindiny mechanism connecting with extraneous transmission machinery, is servo-actuated rigid gear 4 equipped with retarder output connection knot
Structure, the number of teeth of the rigid gear 3 of fixation is different from flexible 2 number of teeth of gear ring, is servo-actuated 2 number of teeth of the number of teeth and flexible gear ring of rigid gear 4
Identical, the reference circle for being servo-actuated rigid gear 4 is consistent with the reference circle of 2 long axis of flexible gear ring.
In use, the rigid gear 3 of fixation is fixedly mounted on machine, the top half of flexible 2 transverse tooth thickness of gear ring and fixation are rigid
Gear 3 engages, and realizes retarded motion, if the number of teeth of fixed rigid gear 3 is Z1, the number of teeth of flexible gear ring 2 is Z2, then retarder
Reduction ratio is 1/R1=(Z2-Z1)/Z2, and the lower half portion of flexible 2 transverse tooth thickness of gear ring is nibbled with the servo-actuated rigid gear 4 as output shaft
It closes, realizes the transmitting of power, flexible 2 number of teeth of gear ring is identical with servo-actuated firm gear, that is, output shaft number of teeth, and flute profile needs to match, because soft
Property gear ring 2 only in long axis region and fixed rigid gear 3 and be servo-actuated rigid gear 4 and realize and engage, while most being connect with reference circle size
Closely, compliance gear ring 2 is different with the indexing circumference for being servo-actuated rigid gear 4, therefore flexible gear ring 2 and the tooth pitch for being servo-actuated rigid gear 4
It is distributed unequal, when designing servo-actuated firm gear flute profile is restricted, the tooth of servo-actuated steel wheel can be done " cross and cut " by the thinking of design, be not required to
It will be by a tooth engagement in major axis of cam bosom, it may be considered that a certain number of left half teeth of long axis centre tooth the right and left and one
Half tooth engagement of the right side of fixed number amount, half tooth of a left side of engagement and right half tooth middle section whole gap, the speed reducer realize harmonic wave and subtract
The integral rigidity that speed reducer is improved while fast avoids flexible gear installation section axial length is too long from being easily deformed damage,
And the axial width for reducing whole retarder is also helped, can be realized retarder miniaturises design, is applicable in present
The development trend of various device miniaturizations.
Gear ratio flexibility 2 numbers of teeth of gear ring of the rigid gear of fixation are more.Realize deceleration transmission, the tooth of the rigid gear of fixation
Number within four, guarantees to ensure engaged transmission intensity under the premise of reduction ratio, avoids normally nibbling more than flexible 2 number of teeth of gear ring
Close transmission, it is ensured that deceleration precision.
The wave producer 1 includes oval camshaft 11, flexible bearing inner ring 12 and flexible bearing roller 13, institute
Flexible bearing ring gear fixing sleeve is stated set on 11 periphery of camshaft, 2 inside of 12 outside of flexible bearing inner ring and flexible gear ring
Between be formed with raceway, flexible bearing roller 13 can roll in the raceway.Consider flexible bearing packaging technology demand, it is flexible
Retainer can be housed, it is ensured that each roller spacing is relatively uniform, and each roller can also be between the roller and roller in raceway
It is closely affixed, and adds lubricant at the rolling friction position of roller and raceway, respectively rolled when ensuring 11 high speed rotation of camshaft
Son and Internal and external cycle smooth can move, and the flexible bearing outer ring of the structure forms flexible tooth wheel rim, save conventional harmonic speed reducer
The design and application of flexbile gear, have simplified the overall structure of speed reducer, have reduced manufacturing cost, avoid flexbile gear and are being used for a long time
Deformed damaged in journey and cause entire speed reducer to be scrapped.
The bearing roller is any one in cylindrical roller and spherical roller.It can certainly be other types of rolling
Son.
It is described to be servo-actuated rigid 4 periphery of gear and connect with fixed rigid gear 3 by first bearing 5.First bearing 5 is realized
The synchronous rotation for being servo-actuated rigid gear 4 and flexible gear ring 2 positions, and friction and interference will not occur with the rigid gear 3 of fixation, is servo-actuated rigid
4 registration of gear guarantees output stabilization of slowing down, avoids energy loss.
It is additionally provided with rigid flange ring 6, the rigid flange ring 6 is fixedly installed on fixed rigid 3 one end end face of gear, rigidity
T shape cyclic structure is collectively formed in flange ring 6 and fixed rigid gear 3, is servo-actuated rigid gear 4 and is just contained on the inside of the T shape cyclic structure
Space in, on the small one end inner sidewall of the T shape cyclic structure diameter that fixed rigid gear 3 and rigid flange ring 6 are formed with it is servo-actuated
5 raceway of first bearing is collectively formed on 4 periphery wall of rigid gear, the roller of first bearing 5 is contained in the first bearing 5
In raceway.The outer ring of first bearing 5 is collectively formed by rigid flange ring 6 and fixed rigid gear 3,5 raceway of first bearing is by rigid
Property flange ring 6 and fixed rigid gear 3 formed in seperated form, convenient for the assembling of the roller of first bearing 5.
The overall structure that the rigid flange ring 6 is integrally formed with fixed rigid gear 3.So that 5 outer ring of first bearing is simultaneous
Rigid gear can effectively promote 5 intensity of first bearing in one, unitary design, because the Internal and external cycle of bearing is all overall structure,
Roller mounting process in its channel, needing to design on bearing inner race or outer ring has roller assembly hole and stopple, to install and
Sealing, when unitary design, need to consider processing technology, and bearing channel needs higher hardness, and the rigid gear gear teeth are relatively soft, need
Appropriate heat treatment process matching.
The first bearing 5 is cross roller bearing, on rigid flange ring 6 and the opposite end face of fixed rigid gear 3
It is respectively formed with incline structure with the level, two incline structures with the level are spliced to form half of first bearing, 5 raceway, and first
It is closely coupled between adjacent rollers in 5 raceway of bearing, lubricant is also equipped in 5 raceway of first bearing.Cross roller axis
It holds and realizes that be servo-actuated rigid gear 4 is located by connecting outside relationship with what fixed rigid gear 3 can rotate, can also realize to being servo-actuated rigid tooth
The support of wheel 4, improves the intensity of retarder delivery end.
Be formed with flange arrangement 31 on the outside of the rigid circumference of gear of the fixation, the flange arrangement 31 formed for extraneous machine
The bindiny mechanism of connection.Improve retarder integral rigidity and support strength.
The rigid flange ring 6 is far from fixed rigid 3 one end of gear inside and is servo-actuated between rigid 4 outside of gear and servo-actuated rigid
Sealing device 7 is further respectively had between gear 4 and wave producer 1.The sealing that each bearing is realized by dynamic sealing device 7, keeps away
Exempt from impurity, dust etc. to enter in bearing, causes bearing can not work normally, it is ensured that speed reducer normal use.
Claims (10)
1. a kind of Novel speed reducer, it is characterised in that: including wave producer (1), flexible gear ring (2), fixed rigid gear (3) and with
It moves rigid gear (4), the flexibility gear ring is closely sheathed on wave producer periphery, and fixed rigid gear is distinguished with rigid gear is servo-actuated
Be sheathed on the periphery at flexible gear ring both ends, and fixed rigid gear and be servo-actuated rigid gear respectively with flexible gear ring engaged transmission,
Fixed rigid gear is equipped with the bindiny mechanism connecting with extraneous transmission machinery, is servo-actuated rigid gear equipped with retarder output connection knot
Structure, the number of teeth of the rigid gear of fixation is different from the flexible gear ring number of teeth, and the number of teeth for being servo-actuated rigid gear is identical as the flexible gear ring number of teeth,
The reference circle for being servo-actuated rigid gear is consistent with the reference circle of flexible gear ring long axis.
2. Novel speed reducer according to claim 1, it is characterised in that: the gear ratio flexibility gear ring of the rigid gear of fixation
The number of teeth is more.
3. Novel speed reducer according to claim 1, it is characterised in that: the wave producer includes oval cam
Axis (11), flexible bearing inner ring (12) and flexible bearing roller (13), the flexible bearing ring gear fixing sleeve are set to camshaft
It is formed with raceway between on the inside of periphery, flexible bearing inner ring outside and flexible gear ring, flexible bearing roller can be in the rolling
It is rolled in road.
4. Novel speed reducer according to claim 3, it is characterised in that: the bearing roller is cylindrical roller and spherical rolling
Any one in son.
5. Novel speed reducer according to claim 1, it is characterised in that: described to be servo-actuated on the outside of rigid circumference of gear and fix just
Gear is connected by first bearing (5).
6. Novel speed reducer according to claim 5, it is characterised in that: be additionally provided with rigid flange ring (6), the stiffness method
Lan Huan is fixedly installed on fixed rigid gear one end end face, and T shape cyclic structure is collectively formed in rigid flange ring and fixed rigid gear,
It is servo-actuated in the space that rigid gear is just contained on the inside of the T shape cyclic structure, the T shape ring that fixed rigid gear and rigid flange ring are formed
First bearing raceway has been collectively formed with being servo-actuated on rigid circumference of gear lateral wall on the small one end inner sidewall of shape diameter of movement, first
The roller of bearing is contained in the first bearing raceway.
7. Novel speed reducer according to claim 6, it is characterised in that: the rigid flange ring is one with fixed rigid gear
Body formed overall structure.
8. Novel speed reducer according to claim 6, it is characterised in that: the first bearing is cross roller axis
It holds, rigid flange ring is respectively formed with incline structure with the level on the end face opposite with fixed rigid gear, and two with the level
Incline structure is spliced to form half of first bearing raceway, closely coupled, first axle between the adjacent rollers in first bearing raceway
It holds and is also equipped with lubricant in raceway.
9. Novel speed reducer according to claim 6, it is characterised in that: be formed with method on the outside of the rigid circumference of gear of fixation
Blue structure (31), the flange arrangement form the bindiny mechanism for connecting with extraneous machine.
10. Novel speed reducer according to claim 6, it is characterised in that: the rigid flange ring is far from fixed rigid gear
On the inside of one end and between being servo-actuated on the outside of rigid gear and it is servo-actuated between rigid gear and wave producer and further respectively has sealing device
(7)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263484.9U CN208885902U (en) | 2018-08-07 | 2018-08-07 | Novel speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263484.9U CN208885902U (en) | 2018-08-07 | 2018-08-07 | Novel speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208885902U true CN208885902U (en) | 2019-05-21 |
Family
ID=66508251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821263484.9U Active CN208885902U (en) | 2018-08-07 | 2018-08-07 | Novel speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208885902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757885A (en) * | 2018-08-07 | 2018-11-06 | 昆山冠品优精密机械有限公司 | Novel speed reducer |
| CN110370459A (en) * | 2019-07-26 | 2019-10-25 | 汉寿县恒伟混凝土有限公司 | The fast concrete central mix plant of one kind three |
| CN110878823A (en) * | 2019-08-26 | 2020-03-13 | 扬州星辰制造技术有限公司 | Harmonic differential mechanism of hard tooth surface rigid wheel |
-
2018
- 2018-08-07 CN CN201821263484.9U patent/CN208885902U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757885A (en) * | 2018-08-07 | 2018-11-06 | 昆山冠品优精密机械有限公司 | Novel speed reducer |
| CN110370459A (en) * | 2019-07-26 | 2019-10-25 | 汉寿县恒伟混凝土有限公司 | The fast concrete central mix plant of one kind three |
| CN110878823A (en) * | 2019-08-26 | 2020-03-13 | 扬州星辰制造技术有限公司 | Harmonic differential mechanism of hard tooth surface rigid wheel |
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