CN209494908U - A kind of epicyclic gearbox - Google Patents
A kind of epicyclic gearbox Download PDFInfo
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- CN209494908U CN209494908U CN201822116805.9U CN201822116805U CN209494908U CN 209494908 U CN209494908 U CN 209494908U CN 201822116805 U CN201822116805 U CN 201822116805U CN 209494908 U CN209494908 U CN 209494908U
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- planet
- planet carrier
- boss
- central axis
- supporting frame
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Abstract
The utility model discloses a kind of epicyclic gearbox, including the first central axis, the second central axis, planet carrier and planet wheeling supporting frame, the planet wheeling supporting frame is provided on first central axis；It is provided with sun gear and the planet carrier on second central axis, multiple boss are provided on the planet carrier, the height of the multiple boss is less than the thickness of the planet carrier, and the multiple boss is fixedly connected with the planet wheeling supporting frame by connector；The planet wheeling supporting frame and the first central axis of the utility model the utility model use split-type design, effectively reduce mach deformation, improve precision, and planet wheeling supporting frame is aluminum component, effectively reduces whole weight；Planet carrier design has the boss compared with low dimensional, can effectively prevent the deformation generated when tapping, and then improve the precision of planet carrier.
Description
Technical field
The utility model relates to technical field of motors, in particular to a kind of epicyclic gearbox.
Background technique
With the development of industry, low profile gear motor plays a significant role in process of production；Low profile gear motor
The every field such as industry, agricultural, public utility and household electrical appliance are widely used in, the development of micro-machine industry passes through its people
Ji construction, energy conservation, environmental protection and people's lives all play important facilitation.It is small-sized but if not focusing on maintaining
The abrasion of decelerating motor can bring unnecessary economic loss to enterprise；The working life of low profile gear motor can be by suitable in fact
When maintenance measure and be considerably improved, and core of the electric vehicle hub driving device as electric vehicle
Part, the quality of quality often decide the superiority and inferiority of electric vehicle entirety, and small hyper tape gear hub motor in the prior art is adopted
Planetary gear and planetary gear pin are fixed with aluminum component design, using planet carrier and planetary gear support attachment, planet carrier is simultaneously
Stator seat as motor stator；It but since deflection is larger, often will lead to some errors, cause the main of these errors
It is aluminum component that reason, which has planet carrier, and planet carrier design has higher dimensional boss, and boss needs tapping to be used for and planet wheeling supporting frame
Threaded connection, when tapping, will lead to boss deformation since boss is higher, and then entire planet carrier is caused to deform；Planetary gear branch
Support and central axis are whole steel part, and machining distortion is big, weight is big, cannot meet market very well and specifically want to micro-machine
It asks.
Utility model content
In order to solve the above-mentioned technical problem, the utility model discloses a kind of epicyclic gearboxes, including the first central axis,
Two central axises, planet carrier and planet wheeling supporting frame are provided with the planet wheeling supporting frame on first central axis；Described second
It is provided with sun gear and the planet carrier on central axis, multiple boss, the height of the multiple boss are provided on the planet carrier
Degree is less than the thickness of the planet carrier, and the multiple boss is fixedly connected with the planet wheeling supporting frame by connector.
Further, first central axis and the planet wheeling supporting frame are split-type design.
Further, the planet carrier and the multiple boss are integrally formed, and are both provided with screw thread on each boss
Hole, the multiple boss are uniformly distributed around the planet carrier central axis.
Further, the boss top is plane, and the boss top is provided with limiting section, and the limiting section is close to institute
State the outside of planet carrier.
Further, the planet wheeling supporting frame is aluminum component.
Further, the boss includes at least 3.
Further, the boss height is less than the 20% of the planet carrier thickness.
Further, the connector is pin, screw or bolt.
A kind of motor, including epicyclic gearbox described at least any of the above item.
A kind of electric bicycle, including motor, the motor include at least epicyclic gearbox described in any of the above item.
Implement the utility model embodiment, has the following beneficial effects:
1, the planet wheeling supporting frame of the utility model and the first central axis use split-type design, and the machine of effectively reducing adds
The deformation of work, improves precision.
2, the planet wheeling supporting frame of the utility model is aluminum component, effectively reduces whole weight.
3, the planet carrier design of the utility model has the boss compared with low dimensional, can effectively prevent the change generated when tapping
Shape, and then improve the precision of planet carrier.
Detailed description of the invention
It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
Attached drawing to be used is needed to be briefly described.It should be evident that the accompanying drawings in the following description is only some of the utility model
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the structure diagram of the utility model planet carrier and planet wheeling supporting frame mounting means；
Fig. 3 is the structure diagram of the utility model planet carrier；
Fig. 4 is the structure diagram of the utility model planet wheeling supporting frame；
Fig. 5 is the structure diagram of the first central axis of the utility model.
Wherein, appended drawing reference is corresponding in figure are as follows:
The first central axis of 1-；The second central axis of 2-；3- planet carrier；4- planet wheeling supporting frame；31- boss；311- threaded hole；
312- limiting section.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
Referring to attached FIG. 1 to FIG. 5, a kind of epicyclic gearbox, including the first central axis 1, the second center are present embodiments provided
Axis 2, planet carrier 3 and planet wheeling supporting frame 4 are provided with the planet wheeling supporting frame 4 on first central axis 1；Described second
It is provided with sun gear and the planet carrier 3 on central axis 2, multiple boss 31, the multiple boss are provided on the planet carrier 3
31 height is less than the thickness of the planet carrier 3, and the multiple boss 31 is fixed with the planet wheeling supporting frame 4 by connector
Connection.
Preferably, the axis of first central axis 1 and second central axis 2 is point-blank.
Preferably, the planet wheeling supporting frame 4 is provided with through-hole, and the planet wheeling supporting frame 4 is set in first center
On axis 1.
Specifically, first central axis 1 and the planet wheeling supporting frame 4 are split-type design, can respectively be machined,
Then it reassembles together, split-type design makes to become smaller.
Specifically, the planet wheeling supporting frame 4 is aluminum component, mitigates weight, keeps motor whole lighter.
Preferably, one end of first central axis 1 is provided with convex end face, and first central axis 1 passes through described convex
Type end side is connect with the planet wheeling supporting frame 4, and the convex end face is fastened on the planet wheeling supporting frame 4, the convex
The movement of planet wheeling supporting frame 4 to the left described in the major limitation of end face.
The other end of first central axis 1 is provided with screw thread, for connecting.
Preferably, the planet carrier 3 is provided with through-hole, and the planet carrier 3 is set on second central axis 2.
Specifically, 2 clearance fit of the planet carrier 3 and the second central axis.
Preferably, it is provided with multiple boss 31 on the planet carrier 3, is respectively provided on each boss 31 of the planet carrier 3
There is threaded hole 311；The boss of identical quantity is arranged in the planet wheeling supporting frame 4, and through-hole is additionally provided on the boss, described convex
Platform is corresponding with 31 position of boss on the planet carrier 3.
The threaded hole 311 of the through-hole of the planet wheeling supporting frame 4 and the planet carrier 3 corresponds.
Specifically, the boss 31 of the planet carrier 3 is uniformly distributed around 3 central axis of planet carrier.
Specifically, the planet carrier 3 is connect with the planet wheeling supporting frame 4 by threaded hole.
Preferably, the connector is pin, screw or bolt.
Preferably, the planet carrier 3 is connect with the planet wheeling supporting frame 4, and centre forms space, and the space is for pacifying
Fill sun gear and planetary gear.
Preferably, the planet carrier 3 and the multiple boss 31 are integrally formed.
Specifically, 31 top of boss is plane, and 31 top of boss is provided with limiting section 312, the limiting section
312 close to the outside of the planet carrier 3, when the planet carrier 3 is installed together with the planet wheeling supporting frame 4, the limit
Position portion 312 is used for restriction site, and the planet carrier 3 and the relative position of the planet wheeling supporting frame 4 is made to be not easy to change.
Preferably, the boss 31 is 3.
Preferably, 31 height of boss is less than the 20% of 3 thickness of planet carrier.
Specifically, what the boss 31 was arranged is relatively low, is primarily due to the boss 31 and needs tapping, when the boss 31
When relatively high, the deflection of tapping is larger, significantly affects the precision of the planet carrier 3 in this way, so in design institute
Its height is reduced when stating boss 31, the precision of the planet carrier 3 can be improved in this way.
The present embodiment also provides a kind of motor, and the motor includes the epicyclic gearbox, has above-mentioned planetary gear
The motor of case uses split-type design using planet wheeling supporting frame and the first central axis, effectively reduces mach deformation,
Precision is improved, and planet wheeling supporting frame is aluminum component, effectively reduces whole weight；The planet of the utility model is set up
It in respect of the boss compared with low dimensional, can effectively prevent the deformation generated when tapping, and then improve the precision of planet carrier.
Embodiment 2
Referring to attached FIG. 1 to FIG. 5, a kind of epicyclic gearbox, including the first central axis 1, the second center are present embodiments provided
Axis 2, planet carrier 3 and planet wheeling supporting frame 4 are provided with the planet wheeling supporting frame 4 on first central axis 1；Described second
It is provided with sun gear and the planet carrier 3 on central axis 2, multiple boss 31, the multiple boss are provided on the planet carrier 3
31 height is less than the thickness of the planet carrier 3, and the multiple boss 31 is fixed with the planet wheeling supporting frame 4 by connector
Connection.
Preferably, the axis of first central axis 1 and second central axis 2 is point-blank.
Preferably, the planet wheeling supporting frame 4 is provided with through-hole, and the planet wheeling supporting frame 4 is set in first center
On axis 1.
Specifically, first central axis 1 and the planet wheeling supporting frame 4 are split-type design, can respectively be machined,
Then it reassembles together, split-type design makes to become smaller.
Specifically, the planet wheeling supporting frame 4 is aluminum component, mitigates weight, keeps motor whole lighter.
Preferably, one end of first central axis 1 is provided with convex end face, and first central axis 1 passes through described convex
Type end side is connect with the planet wheeling supporting frame 4, and the convex end face is fastened on the planet wheeling supporting frame 4, the convex
The movement of planet wheeling supporting frame 4 to the left described in the major limitation of end face.
The other end of first central axis 1 is provided with screw thread, for connecting.
Preferably, the planet carrier 3 is provided with through-hole, and the planet carrier 3 is set on second central axis 2.
Specifically, 2 clearance fit of the planet carrier 3 and the second central axis.
Preferably, it is provided with multiple boss 31 on the planet carrier 3, is respectively provided on each boss 31 of the planet carrier 3
There is threaded hole 311；The boss of identical quantity is arranged in the planet wheeling supporting frame 4, and the boss is also equipped with threaded hole, described convex
Platform is corresponding with 31 position of boss on the planet carrier 3.
The threaded hole 311 of the through-hole of the planet wheeling supporting frame 4 and the planet carrier 3 corresponds.
Specifically, the boss 31 of the planet carrier 3 is uniformly distributed around 3 central axis of planet carrier.
Specifically, the planet carrier 3 is connect with the planet wheeling supporting frame 4 by threaded hole.
Preferably, the connector is pin, screw or bolt.
Preferably, the planet carrier 3 is connect with the planet wheeling supporting frame 4, and centre forms space, and the space is for pacifying
Fill sun gear and planetary gear.
Preferably, the planet carrier 3 and the multiple boss 31 are integrally formed.
Specifically, 31 top of boss is plane, and 31 top of boss is provided with limiting section 312, the limiting section
312 close to the outside of the planet carrier 3, when the planet carrier 3 is installed together with the planet wheeling supporting frame 4, the limit
Position portion 312 is used for restriction site, and the planet carrier 3 and the relative position of the planet wheeling supporting frame 4 is made to be not easy to change.
Preferably, the boss 31 is 5.
Preferably, 31 height of boss is less than the 15% of 3 thickness of planet carrier.
Specifically, what the boss 31 was arranged is relatively low, is primarily due to the boss 31 and needs tapping, when the boss 31
When relatively high, the deflection of tapping is larger, significantly affects the precision of the planet carrier 3 in this way, so in design institute
Its height is reduced when stating boss 31, the precision of the planet carrier 3 can be improved in this way.
Preferably, the ring gear is fixedly connected with unilateral bearing, and the ring gear is fixedly connected with motor end face, described
The same side of the ring gear is arranged in unilateral bearing and the motor end face, and the unilateral bearing ensures that power can only be passed unidirectionally
It is defeated.
Preferably, the electric motor end cap is fixedly connected with electric machine casing, finally delivers power to electric machine casing, motor casing
Body is connect with wheel by spoke, and final driven wheel advances.
The motor part installation process with epicyclic gearbox is as follows: second central axis 2 being passed through institute first
Planet carrier 3 is stated, planetary gear then is installed on the planet carrier 3；Secondly first central axis 1 is passed through into the planetary gear branch
The through-hole alignment of the threaded hole 311 of the planet carrier 3 and the planet wheeling supporting frame 4 is passed through the boss 31 by support 4
Limiting section, limits the change of the planet carrier 3 and 4 relative position of planet wheeling supporting frame, then passes through screw for the planet
Frame 3 is fixedly connected with the planet wheeling supporting frame 4.
The present embodiment also provides a kind of electric bicycle, including motor, and the motor includes the epicyclic gearbox, tool
There is the electric bicycle of above-mentioned motor, using split-type design, to effectively reduce using planet wheeling supporting frame and the first central axis
Mach deformation improves precision, and planet wheeling supporting frame is aluminum component, effectively reduces whole weight；This is practical
Novel planet carrier design has the boss compared with low dimensional, can effectively prevent the deformation generated when tapping, and then improve row
The precision of carrier.
Although the utility model has been described by means of preferred embodiments, the utility model is not limited to this
In described embodiment, further include made various changes and change in the case where not departing from the scope of the utility model
Change.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this
Novel interest field, therefore equivalent variations made according to the claim of the utility model still belong to what the utility model was covered
Range.
Claims (10)
1. a kind of epicyclic gearbox, which is characterized in that including the first central axis (1), the second central axis (2), planet carrier (3) and row
Star-wheel support frame (4) is provided with the planet wheeling supporting frame (4) on first central axis (1)；
It is provided with sun gear and the planet carrier (3) on second central axis (2), is provided on the planet carrier (3) multiple
Boss (31), the height of the multiple boss (31) are less than the thickness of the planet carrier (3), the multiple boss (31) with it is described
Planet wheeling supporting frame (4) is fixedly connected by connector.
2. a kind of epicyclic gearbox according to claim 1, which is characterized in that first central axis (1) and the row
Star-wheel support frame (4) is split-type design.
3. a kind of epicyclic gearbox according to claim 1, which is characterized in that the planet carrier (3) and the multiple convex
Platform (31) is integrally formed, and is both provided with threaded hole (311) on each boss (31), the multiple boss (31) is around the row
Carrier (3) central axis is uniformly distributed.
4. a kind of epicyclic gearbox according to claim 3, which is characterized in that boss (31) top is plane, institute
It states boss (31) top to be provided with limiting section (312), outside of the limiting section (312) close to the planet carrier (3).
5. a kind of epicyclic gearbox according to claim 1, which is characterized in that the planet wheeling supporting frame (4) is aluminum component.
6. a kind of epicyclic gearbox according to claim 3, which is characterized in that the boss (31) includes at least 3.
7. a kind of epicyclic gearbox according to claim 1 or 3, which is characterized in that the boss (31) is highly less than institute
State the 20% of planet carrier (3) thickness.
8. a kind of epicyclic gearbox according to claim 1, which is characterized in that the connector is pin, screw or bolt.
9. a kind of motor, which is characterized in that including the epicyclic gearbox as described in claim 1-8 any one.
10. a kind of electric bicycle, including motor, which is characterized in that the motor includes such as claim 1-8 any one institute
The epicyclic gearbox stated.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822116805.9U CN209494908U (en) | 2018-12-17 | 2018-12-17 | A kind of epicyclic gearbox |
| PCT/CN2019/125702 WO2020125587A1 (en) | 2018-12-17 | 2019-12-16 | Hub motor assembly and electric bicycle comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822116805.9U CN209494908U (en) | 2018-12-17 | 2018-12-17 | A kind of epicyclic gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209494908U true CN209494908U (en) | 2019-10-15 |
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ID=68153171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822116805.9U Active CN209494908U (en) | 2018-12-17 | 2018-12-17 | A kind of epicyclic gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209494908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125587A1 (en) * | 2018-12-17 | 2020-06-25 | 宁波麦思动力系统有限公司 | Hub motor assembly and electric bicycle comprising same |
-
2018
- 2018-12-17 CN CN201822116805.9U patent/CN209494908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125587A1 (en) * | 2018-12-17 | 2020-06-25 | 宁波麦思动力系统有限公司 | Hub motor assembly and electric bicycle comprising same |
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