CN205841183U - A kind of internal rotor - Google Patents
A kind of internal rotor Download PDFInfo
- Publication number
- CN205841183U CN205841183U CN201620760813.5U CN201620760813U CN205841183U CN 205841183 U CN205841183 U CN 205841183U CN 201620760813 U CN201620760813 U CN 201620760813U CN 205841183 U CN205841183 U CN 205841183U
- Authority
- CN
- China
- Prior art keywords
- internal rotor
- arcuate groove
- denticle
- wall
- motor driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a kind of internal rotor, including denticle, denticle is externally provided with double wedge, axis hole it is provided with in the middle part of denticle, shaft hole inner wall is provided with and is embedded, with driving motor driving shaft key or pin, the arcuate groove coordinated mutually, described shaft hole inner wall is additionally provided with the perpendicular tangent with drive shaft surface, and perpendicular forms linear contact lay with drive shaft surface.Arcuate groove can carry out being embedded to coordinate being in transmission connection with driving motor driving shaft key or pin, owing to the radian of arcuate groove there are differences with the radian of shaft hole inner wall, it is possible to avoid shaft hole inner wall and the laminating of drive shaft surface large area to form vacuum oil lamella, make perpendicular at perpendicular and drive motor rotation axis surface formation linear contact lay, it can be avoided that the laminating of shaft hole inner wall and drive shaft surface local forms vacuum oil lamella, arcuate groove combines with perpendicular, common effect, motor driving shaft surface is avoided to form vacuum oil lamella with internal rotor inwall, internal rotor is conducive to coordinate the most smoothly with motor driving shaft.
Description
Technical field
This utility model relates to pump accessory field, more specifically, it relates to a kind of internal rotor.
Background technology
The internal rotor used at present, generally uses casting turning to form, and during use, drive shaft is by key, pin and internal rotor
Connect or armature spindle one end is processed into irregular shape and is inserted directly into the operating driving inner and outer rotors in internal rotor endoporus.
The patent document of Application No. 201420825170.9 discloses a kind of internal rotor of lubricating pump, the centre of this internal rotor
Position is provided with axis hole, connects drive shaft in axis hole, owing to axis hole inner surface is arc-shaped, and the axis hole after turning
Inside surface roughness is relatively low, and its roughness grade number is 3.2, also implies that axis hole inner surface has higher smoothness, and leads to
Often the surface roughness of motor driving shaft is relatively low, and its roughness grade number is 3.2, and motor driving shaft surface also has higher smooth
Degree, and motor driving shaft is to abut cooperation with axis hole inner surface, in order to keep meshed transmission gear smooth degree, can be on internal rotor
Remain more fluid, in motor driving shaft with axis hole, also can remain more fluid, table in motor driving shaft with axis hole
Face abuts when coordinating, and easily forms vacuum oil lamella between surface both, due to involving of vacuum power, to motor driving shaft with
The cooperation of axis hole inner surface brings bigger resistance, easily causes inner rotor shaft internal surface of hole or the damage of motor driving shaft outer surface
Bad, there is the weak point of improvement.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of internal rotor, and this internal rotor leads to
Cross and arcuate groove and perpendicular are set, form linear contact lay with drive shaft surface, it is to avoid motor driving shaft surface and internal rotor inwall
Form vacuum oil lamella, beneficially internal rotor to coordinate with the stable of motor driving shaft.
For achieving the above object, this utility model provides following technical scheme: a kind of internal rotor, including denticle, described
Denticle is externally provided with double wedge, is provided with axis hole in the middle part of described denticle, described shaft hole inner wall be provided with and drive the key on motor driving shaft or
Pin is embedded the arcuate groove of cooperation mutually, and described shaft hole inner wall is additionally provided with the perpendicular tangent with drive shaft surface, described the most flat
Face forms linear contact lay with drive shaft surface.
By using technique scheme, arcuate groove is set at shaft hole inner wall, on the one hand can be with driving motor driving shaft
Key or pin carry out being embedded cooperation and are in transmission connection, on the other hand, owing to the radian of arcuate groove there are differences with the radian of shaft hole inner wall,
It is possible to avoid shaft hole inner wall and the laminating of drive shaft surface large area to form vacuum oil lamella, arrange at shaft hole inner wall and drive
The perpendicular of axle plane tangent so that perpendicular forms linear contact lay with driving motor rotation axis surface, it is possible to avoid axis hole
The laminating of inwall and drive shaft surface local forms vacuum oil lamella, and arcuate groove combines with perpendicular, jointly acts on,
Avoid motor driving shaft surface and internal rotor inwall to form vacuum oil lamella, beneficially internal rotor and stablize smooth and easy with motor driving shaft
Cooperation.
This utility model is further arranged to: described arcuate groove is provided with several and is uniformly distributed in shaft hole inner wall.
This utility model is further arranged to: described arcuate groove is set to four.
By using technique scheme, four arcuate grooves are evenly distributed on the form of shaft hole inner wall and on the one hand can play
Facilitate the effect that motor driving shaft connects, on the other hand, it is possible to the most avoiding while ensureing inner rotor core intensity
Shaft hole inner wall and the laminating of drive shaft surface large area form the situation of vacuum oil lamella.
This utility model is further arranged to: the perpendicular between described adjacent arcuate groove is equipped with some pieces, some
Perpendicular described in block constitutes cambered surface unit, and cambered surface unit both sides are connected with arcuate groove.
This utility model is further arranged to: described cambered surface unit is made up of three pieces of perpendiculars.
By using technique scheme, the cambered surface unit of three pieces of perpendicular compositions is the most while being easy to processing
Avoid shaft hole inner wall and drive shaft surface local laminating formed vacuum oil lamella situation.
This utility model is further arranged to: described double wedge is set to 10.
This utility model is further arranged to: constitute inner concave arc surface, described inner concave arc surface interior between described adjacent tooth
Tangential circle diameter is more than the circumcircle diameter of double wedge.
By using technique scheme, while strengthening engagement quantity, the internal rotor of this programme is operationally nibbled
Close gap variation rate less, improve work efficiency, reduce kinetic equation loss, be conducive to extending the service life of internal rotor.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of internal rotor of this utility model.
Reference: 1, denticle；2, axis hole；3, arcuate groove；4, double wedge；5, inner concave arc surface；6, perpendicular.
Detailed description of the invention
With reference to Fig. 1, this utility model embodiment is described further.
As it is shown in figure 1, a kind of internal rotor, can apply in band oil pump, hydraulic pump unit, internal rotor includes denticle 1, at tooth
Body 1 is externally provided with double wedge 4, and double wedge 4 is provided with 10, is evenly distributed on denticle 1 outer rim, defines inner concave arc surface between adjacent tooth 4
5, the inscribed circle diameter of inner concave arc surface 5, more than the circumcircle diameter of double wedge 4, is provided with axis hole 2, at axis hole 2 inwall in the middle part of denticle 1
Being provided with and be embedded, with driving motor driving shaft key or pin, the arcuate groove 3 coordinated mutually, arcuate groove 3 is provided with four, is evenly distributed on axle
Hole 2 inwall, is additionally provided with the perpendicular 6 tangent with drive shaft surface, perpendicular 6 and drive shaft surface shape at axis hole 2 inwall
Becoming linear contact lay, perpendicular 6, between adjacent arcuate groove 3, is designed with three pieces vertically between each group of adjacent arcuate groove 3
Plane 6, three pieces of perpendiculars 6 constitute cambered surface unit, and the both sides of cambered surface unit are connected with arcuate groove 3.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, without departing from the some improvement under this utility model principle premise and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (7)
1. an internal rotor, including denticle (1), described denticle (1) is externally provided with double wedge (4), and described denticle (1) middle part is provided with axis hole
(2), it is characterised in that described axis hole (2) inwall is provided with and is embedded, with driving motor driving shaft key or pin, the arcuate groove coordinated mutually
(3), described axis hole (2) inwall is additionally provided with the perpendicular (6) tangent with drive shaft surface, described perpendicular (6) and driving
Axle surface forms linear contact lay.
A kind of internal rotor the most according to claim 1, it is characterised in that described arcuate groove (3) be provided with several and uniformly
It is distributed in axis hole (2) inwall.
A kind of internal rotor the most according to claim 2, it is characterised in that described arcuate groove (3) is set to four.
A kind of internal rotor the most according to claim 3, it is characterised in that vertically putting down between described adjacent arcuate groove (3)
Face (6) is equipped with some pieces, and some pieces of described perpendiculars (6) constitute cambered surface unit, cambered surface unit both sides and arcuate groove (3)
It is connected.
A kind of internal rotor the most according to claim 4, it is characterised in that described cambered surface unit is by three pieces of perpendiculars (6)
Constitute.
A kind of internal rotor the most according to claim 5, it is characterised in that described double wedge (4) is set to 10.
A kind of internal rotor the most according to claim 6, it is characterised in that constitute imploded arcs between described adjacent tooth (4)
Face (5), the inscribed circle diameter of described inner concave arc surface (5) is more than the circumcircle diameter of double wedge (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760813.5U CN205841183U (en) | 2016-07-18 | 2016-07-18 | A kind of internal rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760813.5U CN205841183U (en) | 2016-07-18 | 2016-07-18 | A kind of internal rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841183U true CN205841183U (en) | 2016-12-28 |
Family
ID=57624295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620760813.5U Expired - Fee Related CN205841183U (en) | 2016-07-18 | 2016-07-18 | A kind of internal rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841183U (en) |
-
2016
- 2016-07-18 CN CN201620760813.5U patent/CN205841183U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20210718 |