CN208364194U - Driving mechanism for oil pump - Google Patents
Driving mechanism for oil pump Download PDFInfo
- Publication number
- CN208364194U CN208364194U CN201820871645.6U CN201820871645U CN208364194U CN 208364194 U CN208364194 U CN 208364194U CN 201820871645 U CN201820871645 U CN 201820871645U CN 208364194 U CN208364194 U CN 208364194U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- sprocket
- machine oil
- drive sprocket
- driving mechanism
- 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.)
- Active
Links
- 239000010721 machine oil Substances 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000003921 oil Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model provides a kind of driving mechanism for oil pump, including drive sprocket and machine oil pump sprocket, drive sprocket is mounted on the shaft end of crankshaft, machine oil pump sprocket is equipped with below drive sprocket, machine oil pump sprocket is mounted on the shaft end of machine oil pump shaft, and machine oil pump sprocket is engaged with transmission chain respectively with drive sprocket and transmission chain is in from tensioning state.The utility model, which passes through, machine oil pump sprocket to be arranged below drive sprocket, is only constituted driving mechanism by sprocket wheel and transmission chain, is saved inner space.
Description
Technical field
The utility model relates to vehicular engine transmission fields, and in particular to a kind of driving mechanism for oil pump.
Background technique
In engine operation process, each part for rotating and moving requires oil lubricating.The lubricating oil of engine comes from
Lubricating oil pump output.Lubricating oil pump need of work from crankshaft torque export, generallyd use between lubricating oil pump and crankshaft transmission chain or
Belt transmission.When being driven using belt, width increases by 40% than can be when use transmission chain.And when transmission chain being selected to drive, because
Transmission chain is that metallic bond plate is composed one by one, it usually needs a tensioning apparatus guarantees in transmission chain operational process
In tensioning state, which adds arrangement difficulty and big quantity space is occupied.
Utility model content
The purpose of this utility model is to provide a kind of by transmission chain conveyer, the driving mechanism for oil pump to occupy little space.
To achieve the goals above, the utility model is the following technical schemes are provided: a kind of driving mechanism for oil pump, including drives
Movable sprocket and machine oil pump sprocket, drive sprocket are mounted on the shaft end of crankshaft, are equipped with machine oil pump sprocket, lubricating oil pump below drive sprocket
Sprocket wheel is mounted on the shaft end of machine oil pump shaft, and machine oil pump sprocket is engaged with transmission chain respectively with drive sprocket and transmission chain is in certainly
Tensioning state.
The utility model, which passes through, machine oil pump sprocket to be arranged below drive sprocket, only constitutes driving machine by sprocket wheel and transmission
Structure ensure that the reliability of transmission, save inner space in the case where no setting is required strainer.Simultaneously because cancelling
Strainer, no tensioning wheel are contacted with transmission chain, are reduced a noise source, are significantly reduced noise, are conducive to improve whole
Vehicle NVH performance.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the structural decomposition diagram of the utility model.
Specific embodiment
In conjunction with Fig. 1 and Fig. 2, the utility model is described in further detail:
A kind of driving mechanism for oil pump, including drive sprocket 4 and machine oil pump sprocket 6, drive sprocket 4 are mounted on crankshaft 1
Shaft end is equipped with machine oil pump sprocket 6 below drive sprocket 4, and machine oil pump sprocket 6 is mounted on the shaft end of machine oil pump shaft 71, lubricating oil pump
Sprocket wheel 6 is engaged with transmission chain 3 respectively with drive sprocket 4 and transmission chain is in from tensioning state.By the way that machine oil pump sprocket 6 is arranged
Below drive sprocket 4, driving mechanism only constituted by sprocket wheel and transmission chain 3, in the case where no setting is required strainer, is guaranteed
The reliability of transmission, saves inner space.Simultaneously because cancelling strainer, no tensioning wheel is engaged with transmission chain,
Reduce a noise source, significantly reduce noise, is conducive to improve vehicle NVH performance.
The gear ratio of the drive sprocket 4 and machine oil pump sprocket 6 is greater than 1, and preferred gear ratio is 25:18, meets machine
7 revolving speed of oil pump is higher than the requirement of 1 revolving speed of crankshaft.
6 mounting hole of machine oil pump sprocket and 71 shaft end of machine oil pump shaft are cooperated using D character form structure, D character form structure function
It is position-limiting action, after front end bolt is tightened, the relative rotation of sprocket wheel and axis, the torque of bolt is prevented by bolt axial pressing force
After being converted into end-face friction, it is ensured that compressed between sprocket wheel and axis.
On the direction of drive sprocket 4, the lower right of drive sprocket 4 is arranged in the optimum position of machine oil pump sprocket 6.Machine
Oil pump lower half portion is arranged in engine oil level and does not need additional oil lubricating, such as Fig. 1 hereinafter, being therefore driven between chain and sprocket
Shown, when engine is run, crankshaft is rotated clockwise (in terms of diagram direction), then left side is the pilled-in selvedge of transmission chain, and right side is to pass
The slack list of dynamic chain.Slack list transmission chain is under the effect of gravity, sagging in form of arcs, but its sagging amount very little, still basic in straight
Threadiness, this structure have no the noise in operational process and significantly increase.
Claims (5)
1. a kind of driving mechanism for oil pump, including drive sprocket (4) and machine oil pump sprocket (6), it is characterised in that: drive sprocket
(4) it is mounted on the shaft end of crankshaft (1), is equipped with machine oil pump sprocket (6) below drive sprocket (4), machine oil pump sprocket (6) is mounted on machine
On the shaft end of oil pump shaft (71), machine oil pump sprocket (6) engages respectively with transmission chain (3) with drive sprocket (4) and at transmission chain (3)
In from tensioning state.
2. a kind of driving mechanism for oil pump according to claim 1, it is characterised in that: the drive sprocket (4) and machine oil
The gear ratio of pump sprocket (6) is greater than 1.
3. a kind of driving mechanism for oil pump according to claim 2, it is characterised in that: the drive sprocket (4) and machine oil
The gear ratio preferred scope of pump sprocket (6) is 1.2~1.5.
4. a kind of driving mechanism for oil pump according to claim 1, it is characterised in that: machine oil pump sprocket (6) installation
Hole and machine oil pump shaft (71) shaft end are cooperated using D character form structure.
5. a kind of driving mechanism for oil pump according to claim 1, it is characterised in that: face the direction of drive sprocket (4)
On, the optimum position of machine oil pump sprocket (6) is arranged in the lower right of drive sprocket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820871645.6U CN208364194U (en) | 2018-06-06 | 2018-06-06 | Driving mechanism for oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820871645.6U CN208364194U (en) | 2018-06-06 | 2018-06-06 | Driving mechanism for oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364194U true CN208364194U (en) | 2019-01-11 |
Family
ID=64931796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820871645.6U Active CN208364194U (en) | 2018-06-06 | 2018-06-06 | Driving mechanism for oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208364194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140307A (en) * | 2020-03-05 | 2020-05-12 | 湖南机油泵股份有限公司 | Assembly body of oil pump and engine cylinder body without chain tensioner and assembly method |
-
2018
- 2018-06-06 CN CN201820871645.6U patent/CN208364194U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140307A (en) * | 2020-03-05 | 2020-05-12 | 湖南机油泵股份有限公司 | Assembly body of oil pump and engine cylinder body without chain tensioner and assembly method |
| CN111140307B (en) * | 2020-03-05 | 2024-04-02 | 湖南机油泵股份有限公司 | Assembly body and assembly method of engine oil pump and engine cylinder body without chain tensioner |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |