CN208417446U - A kind of annular gear structure and with gear hub motor - Google Patents
A kind of annular gear structure and with gear hub motor Download PDFInfo
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- CN208417446U CN208417446U CN201820759865.XU CN201820759865U CN208417446U CN 208417446 U CN208417446 U CN 208417446U CN 201820759865 U CN201820759865 U CN 201820759865U CN 208417446 U CN208417446 U CN 208417446U
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Abstract
The utility model discloses a kind of annular gear structures, including plastics ring gear ontology and metal insert；Plastics ring gear ontology includes wheel rim, former and multiple gear teeth；The shape of wheel rim, former and metal insert is that circular and three is coaxially disposed；Multiple gear teeth are uniformly arranged in the circumferential direction on the inner peripheral surface of wheel rim；Multiple gear teeth are arranged close to the side of wheel rim, and the other side of wheel rim and the side of former connect, and the inner peripheral surface of former and the outer circumference surface of metal insert connect.The invention also discloses a kind of band gear hub motors.The utility model has taken into account demand of the ring gear to weight and intensity, additionally it is possible to prevent plastic gear ontology in engagement process stress and circumferentially and axial float.
Description
Technical field
The utility model relates to technical field of motors, the in particular to small hyper tape gear hub motor of bicycle, and in particular to
A kind of annular gear structure and with gear hub motor.
Background technique
The existing small hyper tape gear hub motor ring gear of bicycle directlys adopt metal machine and adds part, metallic sintered products, plastics
Part.However, the build-in attribute of metal and plastics, such as metal quality is heavy, plastic hardness is low etc., so that metal gear ring and powder smelting
Golden gear ring weight is big, and plastics gear ring intensity is inadequate.
Utility model content
To solve the technical problems existing in the prior art, the utility model discloses a kind of annular gear structure, specific skill
Art scheme is as described below:
A kind of annular gear structure, including plastics ring gear ontology and metal insert；The plastics ring gear ontology includes wheel
Edge, former and multiple gear teeth；
The shape of the wheel rim, the former and the metal insert is that circular and three is coaxially disposed；It is described more
A gear teeth are uniformly arranged in the circumferential direction on the inner peripheral surface of the wheel rim；
The multiple gear teeth are arranged close to the side of the wheel rim, and the side of the other side of the wheel rim and the former connects
It connects, the inner peripheral surface of the former is connect with the outer circumference surface of the metal insert.
Further, annular groove and groove are provided on the outer circumference surface of the metal insert；
The annular groove is for preventing the plastics ring gear ontology along the axial float of the metal insert；
The groove is for preventing the plastics ring gear ontology along the circumferential play of the metal insert.
Further, the quantity of the annular groove is one or more, and the quantity of the groove is one or more.
Further, the annular groove and the groove are arranged on the same circumference, and the annular groove and the groove are along institute
The circumferential direction for stating metal insert is successively arranged alternately.
Further, the annular groove is arranged on different circumference from the groove.
Further, the outer circumference surface of the radially projecting metal insert of the side wall of the annular groove.
Further, the length direction of the groove is along the axially extending of the metal insert.
Further, the metal insert includes one of machined piece, metallic sintered products and stamping parts or a variety of.
Further, the outer diameter of the former is less than the radius of the wheel rim.
Further, the former is equipped with the first reinforcement block and the second reinforcement block, and the shape of first reinforcement block is
Annular shape, first reinforcement block and the former are coaxial, the second reinforcement block being arranged radially along the former.
The invention also discloses a kind of band gear hub motor, specific technical solution is as described below:
A kind of band gear hub motor, including above-mentioned annular gear structure.
The utility model has the following beneficial effects:
1, the utility model uses metal insert form ring gear, and ring gear ontology is plastic material, and metal insert can be
Machined piece, metallic sintered products, stamping parts etc..It is light-weight compared with using ring gear made of metalwork in the prior art, with
It is good compared to intensity using ring gear made of plastic part in the prior art.
2, fluted and annular groove, Neng Goufang is arranged in ring gear provided by the utility model on the outer circumference surface of metal insert
Only plastic gear ontology in engagement process stress and circumferentially and axial float.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a structural schematic diagram of annular gear structure provided by the embodiment of the utility model；
Fig. 2 is another structural schematic diagram of annular gear structure provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of metal insert provided by the embodiment of the utility model；
Fig. 4 is the schematic cross-sectional view provided by the embodiment of the utility model with gear hub motor.
Wherein, 1- plastics ring gear ontology, 2- metal insert, 3- wheel rim, 4- former, the 5- gear teeth, 6- annular groove, 7- groove,
The side wall of 8- annular groove, the first reinforcement block of 9-, the second reinforcement block of 10-, 11- main shaft, 12- hub shell, 13- motor power-supply wire, 14-
Motor stator, 15- rotor, 16- bearing, 17- one-way clutch, 18- sun gear, 19- connector.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " on ", "lower", "top", "bottom", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as limiting the present invention.The meaning of " multiple " in the description of the present invention,
It is two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, can make to be fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can make to be connected directly, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment:
Fig. 1 is a structural schematic diagram of annular gear structure provided by the embodiment of the utility model, and Fig. 2 is the utility model
Another structural schematic diagram for the annular gear structure that embodiment provides, referring to Fig.1 and 2, ring gear provided in this embodiment
Structure includes plastics ring gear ontology 1 and metal insert 2, and metal insert 2 includes in machined piece, metallic sintered products and stamping parts
It is one or more.
Please continue to refer to Fig. 1, plastics ring gear ontology 1 includes wheel rim 3, former 4 and multiple gear teeth 5, wheel rim 3,4 and of former
The shape of metal insert 2 is that circular and three is coaxially disposed, and multiple gear teeth 5 are uniformly arranged in the circumferential direction the inner circle in wheel rim 3
On circumferential surface, multiple gear teeth 5 are arranged close to the side of wheel rim 3, and the gear teeth 5 are straight-tooth or helical teeth.
Please continue to refer to Fig. 1 and Fig. 2, the other side of wheel rim 3 is connect with the side of former 4, and the outer diameter of former 4 is less than wheel rim
3 radius, former 4 are equipped with the first reinforcement block 9 and the second reinforcement block 10, and the shape of the first reinforcement block 9 is annular shape, and first adds
Strong block 9 and former 4 are coaxial, the second being arranged radially along former 4 of reinforcement block 10, and the second reinforcement block 10 is in item in the side of former 4
Shape, the second reinforcement block 10 are in triangular shape in the other side of former 4.The inner peripheral surface of former 4 and the outer circumference surface of metal insert 2 connect
It connects.
Fig. 3 is the structural schematic diagram of metal insert provided by the embodiment of the utility model, referring to figure 3., metal insert 2
Annular groove 6 and groove 7 are provided on outer circumference surface, annular groove 6 is for preventing plastics ring gear ontology 1 from altering along the axial direction of metal insert 2
It is dynamic；The outer circumference surface of the radially projecting metal insert 2 of side wall 8 of annular groove.Groove 7 is for preventing plastics ring gear ontology 1 along gold
Belong to the circumferential play of inserts 2.The length direction of groove 7 is axially extending along metal insert 2.
Please continue to refer to Fig. 3, in a kind of preferred embodiment of the present embodiment, the quantity of annular groove 6 is multiple, groove
7 quantity be it is multiple, annular groove 6 and groove 7 are arranged on the same circumference, annular groove 6 and groove 7 along metal insert 2 it is circumferential according to
It is secondary to be arranged alternately.
In a kind of optional embodiment of the present embodiment, the outer circumference surface of metal insert 2 is equipped with 6 He of annular groove
Several grooves 7, annular groove 6 are arranged on the first circumference, and groove 7 is arranged on the second circumference, the first circumference and the second circumference
The center of circle is respectively positioned on the axis of metal insert 2 and is not overlapped.It should be pointed out that the quantity of annular groove 6 can also be multiple, groove
7 quantity is also possible to multiple, and the present embodiment is not limited.
It should be pointed out that annular groove 6 can use the form of radially projecting 2 outer circumference surface of metal insert, can also adopt
With the form for the outer circumference surface for being radially recessed metal insert 2；Groove 7 can use radially projecting 2 excircle of metal insert
The form in face, can also be using the form for the outer circumference surface for being radially recessed metal insert 2.According to actual needs to above-mentioned annular groove
6, the scheme that the quantity, form of groove 7 are combined is in the protection scope of the present embodiment.
The present embodiment uses metal insert form ring gear, and ring gear ontology is plastic material, and metal insert can add for machine
Workpiece, metallic sintered products, stamping parts etc..It is light-weight compared with ring gear with using made of metalwork in the prior art, and it is existing
It is good compared to intensity using ring gear made of plastic part in technology.
Fluted and annular groove is set on the outer circumference surface of the metal insert of the present embodiment, can prevent plastic gear ontology from existing
Stress in engagement process and circumferentially and axial float.
Embodiment:
Fig. 4 is the schematic cross-sectional view provided by the embodiment of the utility model with gear hub motor, referring to figure 4., this implementation
What example provided includes main shaft 11, the hub shell 12 being installed in rotation on the main shaft 11 with gear hub motor, is arranged and is taking turns
Driving mechanism and gear reduction inside hub shell 12.Preferably, the left side of hub shell 12 is equipped with outlet hole, wheel hub
The left side of shell 12 and hub shell 12 are overall structures.
Alternatively, the left side of hub shell 12 is provided with end cap, and end cap is equipped with outlet hole, end cap and hub shell 12
It connects (not shown).
Motor power-supply wire 13 passes through the inner cavity for entering hub shell 12 after the outlet hole, and the winding terminal with inner stator
Connection.
Driving mechanism includes the motor stator 14 and rotor 15 of coaxial arrangement, and motor stator 14 is fixedly mounted on main shaft
On 11, rotor 15 includes rotor portions and shaft sleeve part, and rotor portions are supported and are mounted on main shaft 11, shaft sleeve part by bearing 16
Inner ring and 11 clearance fit of main shaft.Wherein, rotor portions and shaft sleeve part are integrally formed, and advantageously reduce amount of parts, are improved
The position of rotor bearing 16 and the concentricity of sun gear 18, to improve overall performance.
Gear reduction includes one-way clutch 17, compound planet gear, planet carrier component, gear ring component and sun gear
18, the connection relationship between each component of gear reduction is summarized as follows: one-way clutch 17 with it is provided by the above embodiment
Ring gear coaxial arrangement, and one-way clutch 17 is fixedly connected with the metal insert 2 of ring gear, what can be used is fixedly connected with shape
Formula includes interference fit, key connection, pin connection etc..Sun gear 18 is set in the shaft sleeve part outer ring of outer rotor, sun gear 18 and axis
Set portion is fixedly connected by connector 19.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is contained at least one embodiment or example of the utility model.In the present specification, schematic expression of the above terms
It need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What can be combined in any suitable manner in one or more embodiment or examples.In addition, those skilled in the art can will be in this specification
The different embodiments or examples of description are engaged and are combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
It is interior above-described embodiment can be changed, modifications and variations.
Claims (10)
1. a kind of annular gear structure, which is characterized in that including plastics ring gear ontology (1) and metal insert (2), in the plastics
Gear ring ontology (1) includes wheel rim (3), former (4) and multiple gear teeth (5)；
The shape of the wheel rim (3), the former (4) and the metal insert (2) is that circular and three is coaxially disposed；Institute
Multiple gear teeth (5) are stated to be uniformly arranged in the circumferential direction on the inner peripheral surface of the wheel rim (3)；The multiple gear teeth (5) are close to described
The side of wheel rim (3) is arranged, and the other side of the wheel rim (3) is connect with the side of the former (4), the former (4) it is interior
Periphery is connect with the outer circumference surface of the metal insert (2).
2. annular gear structure according to claim 1, which is characterized in that set on the outer circumference surface of the metal insert (2)
It is equipped with annular groove (6) and groove (7)；
The annular groove (6) is for preventing the plastics ring gear ontology (1) along the axial float of the metal insert (2)；
The groove (7) is for preventing the plastics ring gear ontology (1) along the circumferential play of the metal insert (2).
3. annular gear structure according to claim 2, which is characterized in that the quantity of the annular groove (6) is one or more,
The quantity of the groove (7) is one or more.
4. annular gear structure according to claim 3, which is characterized in that the annular groove (6) and the groove (7) are arranged
On the same circumference, circumferential direction of the annular groove (6) with the groove (7) along the metal insert (2) is successively arranged alternately.
5. annular gear structure according to claim 3, which is characterized in that the annular groove (6) and the groove (7) are arranged
On different circumference.
6. annular gear structure according to claim 2, which is characterized in that the radially projecting institute of side wall (8) of the annular groove
State the outer circumference surface of metal insert (2).
7. annular gear structure according to claim 2, which is characterized in that the length direction of the groove (7) is along the gold
Belong to the axially extending of inserts (2).
8. annular gear structure according to claim 1, which is characterized in that the metal insert (2) includes machined piece, powder
Last metallurgy one of part and stamping parts or a variety of.
9. annular gear structure according to claim 1, which is characterized in that the former (4) is equipped with the first reinforcement block (9)
With the second reinforcement block (10), the shape of first reinforcement block (9) is annular shape, first reinforcement block (9) and the former
(4) coaxially, the second reinforcement block (10) being arranged radially along the former (4).
10. a kind of band gear hub motor, which is characterized in that including any annular gear structure of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759865.XU CN208417446U (en) | 2018-05-21 | 2018-05-21 | A kind of annular gear structure and with gear hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759865.XU CN208417446U (en) | 2018-05-21 | 2018-05-21 | A kind of annular gear structure and with gear hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208417446U true CN208417446U (en) | 2019-01-22 |
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ID=65115188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820759865.XU Active CN208417446U (en) | 2018-05-21 | 2018-05-21 | A kind of annular gear structure and with gear hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208417446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI770780B (en) * | 2021-01-21 | 2022-07-11 | 新加坡商普拉希斯國際有限公司 | Inner rotor hub motor |
-
2018
- 2018-05-21 CN CN201820759865.XU patent/CN208417446U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI770780B (en) * | 2021-01-21 | 2022-07-11 | 新加坡商普拉希斯國際有限公司 | Inner rotor hub motor |
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