CN205859573U - A kind of transmission oil pump of improvement - Google Patents
A kind of transmission oil pump of improvement Download PDFInfo
- Publication number
- CN205859573U CN205859573U CN201620699573.2U CN201620699573U CN205859573U CN 205859573 U CN205859573 U CN 205859573U CN 201620699573 U CN201620699573 U CN 201620699573U CN 205859573 U CN205859573 U CN 205859573U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- pump body
- rotor
- internal rotor
- tooth
- 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
Links
Abstract
The utility model discloses the transmission oil pump of a kind of improvement, including oil pump body and the end cap that matches with oil pump body, outer rotor and internal rotor are installed between oil pump body one end and end cap, the oil pump body other end is provided with the axis hole being connected with transmission output shaft, 7 serrate slots being meshed with the tooth on internal rotor it are evenly distributed on the inner peripheral surface of outer rotor, arc convex is formed between adjacent serrate slot, serrate slot is made up of the second circular arc that the first circular arc that radius is 7cm and two radiuses are 1cm, and the radius of arc convex is 8.4cm.Compared with prior art, outer rotor of the present utility model and internal rotor tooth are under conditions of keeping certain eccentric throw, run by the conjugate curves of the circle-arc tooth of fixed ratio geared motion, make the internal rotor operationally back lash rate of change little, improve the work efficiency of lubricating oil pump, the oil-feed of oil pump and fuel-displaced more smooth and easy, reduces the kinetic equation loss of lubricating oil pump, extends the service life of inner and outer rotors.
Description
Technical field
This utility model relates to automotive transmission technical field, the transmission oil pump of a kind of improvement.
Background technology
Variator lubricating oil pump is used to make engine oil pressure raise and ensure certain oil mass, forces fuel feeding to each friction surface
Component, most common of which is rotor engine oil pump.The rotor engine oil pump used at present, including oil pump casing, lubricating oil pump
Lid, oil sealing and inner and outer Rotator, internal rotor actively and driven outer rotor are all contained in oil pump casing, on the perisporium of internal rotor
Being provided with outer double wedge, the inwall of outer rotor is provided with interior double wedge, the tooth of the outer double wedge of the gear ratio internal rotor of the interior double wedge of outer rotor
Many one of number, the fit depressions between outer double wedge and the interior double wedge of outer rotor of internal rotor, make to be linear contact between the flank of tooth,
Just defining multiple working chamber between the inner and outer Rotator gear teeth, internal rotor central shaft hole is fixed on driving shaft, by internal rotor band
When moving the rotating in same direction of outer rotor, owing to the rotating speed of internal rotor is more than the rotating speed of outer rotor, when rotor is disengaged, volume is gradually
Increasing, produce vacuum, suck lubricating oil, be further continued for rotating, when rotor is progressively engaged, oil pocket volume is gradually reduced, and oil is compressed,
Just lubricating oil is extruded.
Deficiency in design is deposited at present so that interior due to the eccentric throw between existing inside and outside rotor in oil pump and tooth curve
The outer rotor operationally back lash rate of change is big, causes lubricating oil pump inefficiency, and kinetic equation loss is big, and produces noise,
Even cause inner and outer rotors damaged.
Summary of the invention
The purpose of this utility model is intended to solve the deficiency of prior art problem, it is provided that the transmission oil pump of a kind of improvement.
For reaching above-mentioned purpose, this utility model is implemented according to techniques below scheme:
The transmission oil pump of a kind of improvement, including oil pump body and the end cap that matches with oil pump body, oil pump body one end and end
Being provided with outer rotor and internal rotor between lid, the oil pump body other end is provided with the axis hole being connected with transmission output shaft, described outer turns
It is evenly distributed 7 serrate slots being meshed with the tooth on internal rotor, shape between adjacent serrate slot on the inner peripheral surface of son
Camber is protruding, and described serrate slot is made up of the second circular arc that the first circular arc that radius is 7cm and two radiuses are 1cm,
The radius of described arc convex is 8.4cm.
Further, O RunddichtringO it is provided with between described end cap and oil pump body side.
Compared with prior art, outer rotor of the present utility model and internal rotor tooth under conditions of keeping certain eccentric throw,
Run by the conjugate curves of the circle-arc tooth of fixed ratio geared motion, make the internal rotor operationally back lash rate of change little,
Improve the work efficiency of lubricating oil pump, the oil-feed of oil pump and fuel-displaced more smooth and easy, reduce the kinetic equation loss of lubricating oil pump, extend
The service life of inner and outer rotors.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the structural representation of outer rotor of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by specific embodiment, in the signal of this utility model
Property embodiment and explanation be used for explaining this utility model, but be not intended as restriction of the present utility model.
The transmission oil pump of a kind of improvement as shown in Figure 1, Figure 2, Figure 3 shows, matches including oil pump body 1 with oil pump body 1
End cap 2, be provided with O RunddichtringO between end cap and oil pump body side, O RunddichtringO is prevented from leakage of oil, oil pump body 1 one end with
Being provided with outer rotor 4 and internal rotor 3 between end cap 2, connect transmission output shaft 8 in the middle part of internal rotor 3, oil pump body 1 other end sets
Have the hole being connected with transmission output shaft 8, the inner peripheral surface of described outer rotor 4 is evenly distributed 7 with on internal rotor 3
The serrate slot 41 that 6 teeth are meshed, forms arc convex 42 between adjacent serrate slot 41, described serrate slot 41 is by a radius
The first circular arc 411 and the second circular arc 412 that two radiuses are 1cm for 7cm form, and the radius of described arc convex 42 is
8.4cm。
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, within each falling within protection domain of the present utility model.
Claims (2)
1. the transmission oil pump improved, including oil pump body and the end cap that matches with oil pump body, oil pump body one end and end cap
Between outer rotor and internal rotor are installed, the oil pump body other end is provided with the axis hole being connected with transmission output shaft, it is characterised in that:
7 serrate slots being meshed with the tooth on internal rotor, adjacent profile of tooth it is evenly distributed on the inner peripheral surface of described outer rotor
Forming arc convex between groove, described serrate slot is by the second circle that the first circular arc that radius is 7cm and two radiuses are 1cm
Arc forms, and the radius of described arc convex is 8.4cm.
The transmission oil pump of improvement the most according to claim 1, it is characterised in that: between described end cap and oil pump body side
It is provided with O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699573.2U CN205859573U (en) | 2016-07-06 | 2016-07-06 | A kind of transmission oil pump of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699573.2U CN205859573U (en) | 2016-07-06 | 2016-07-06 | A kind of transmission oil pump of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205859573U true CN205859573U (en) | 2017-01-04 |
Family
ID=57644422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620699573.2U Expired - Fee Related CN205859573U (en) | 2016-07-06 | 2016-07-06 | A kind of transmission oil pump of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205859573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043294A (en) * | 2019-12-30 | 2020-04-21 | 綦江齿轮传动有限公司 | Cycloid inner rotor oil pump device for front power takeoff |
| CN112112952A (en) * | 2020-09-15 | 2020-12-22 | 东风格特拉克汽车变速箱有限公司 | Novel mechanical oil pump driven by main reduction gear |
-
2016
- 2016-07-06 CN CN201620699573.2U patent/CN205859573U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043294A (en) * | 2019-12-30 | 2020-04-21 | 綦江齿轮传动有限公司 | Cycloid inner rotor oil pump device for front power takeoff |
| CN112112952A (en) * | 2020-09-15 | 2020-12-22 | 东风格特拉克汽车变速箱有限公司 | Novel mechanical oil pump driven by main reduction gear |
| CN112112952B (en) * | 2020-09-15 | 2022-10-25 | 东风格特拉克汽车变速箱有限公司 | Mechanical oil pump driven by main reduction gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 401420 Chongqing Qijiang District Sanjiang street Changle village two roads Patentee after: Chongqing Hong Jie industrial Limited by Share Ltd Address before: 401422 A District, Qijiang Industrial Park, Chongqing Patentee before: Qijiang dry gear transmission Co., Ltd. |
|
| 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: 20170104 Termination date: 20200706 |