CN208670561U - A kind of no pin internal rotor lubricating oil pump - Google Patents
A kind of no pin internal rotor lubricating oil pump Download PDFInfo
- Publication number
- CN208670561U CN208670561U CN201820425851.4U CN201820425851U CN208670561U CN 208670561 U CN208670561 U CN 208670561U CN 201820425851 U CN201820425851 U CN 201820425851U CN 208670561 U CN208670561 U CN 208670561U
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- CN
- China
- Prior art keywords
- internal rotor
- oil pump
- pin
- rotor
- pump
- 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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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a kind of no pin internal rotor lubricating oil pump, internal rotor component, outer rotor including oil pump cover, oil pump body, pump shaft and internal rotor composition；It is interference fit connection between the pump shaft and internal rotor, and is connected between pump shaft and internal rotor without pin shaft.Technical solutions of the utility model compare traditional scheme, the mode for replacing pin fixed in such a way that internal rotor of lubricating pump component is used interference fit, by being interference fitted so that pump shaft drives rotor by frictional force, facilitate processing, reduce cost, it can also prevent pin hole machined from causing rotor damaged simultaneously, improve service life.
Description
Technical field
The present invention relates to engine oil pump of internal combustion engine, in particular to a kind of no pin internal rotor lubricating oil pump.
Background technique
Lubricating oil pump is widely used on internal combustion engine, especially diesel engine, and most of existing lubricating oil pump is by lubricating oil pump
What body, oil pump cover, internal rotor component and outer rotor formed, internal rotor component is by passing through pin between pump shaft and internal rotor
Axis connection, as patent ZL200620126132X lubricating oil pump pump shaft internal rotor component in, be to pass through pin between pump shaft and internal rotor
Axis connection, such mode are haveed the defects that as follows: 1, procedure of processing is more, and processing cost is high；2, due to the presence of pinhole
Rotor breaks are easy to cause, service life is influenced.
Summary of the invention
The purpose of the invention is to overcome the above problem, a kind of no pin internal rotor lubricating oil pump is provided.
In order to achieve the above objectives, the method that the present invention uses is: a kind of no pin internal rotor lubricating oil pump, including oil pump cover,
Internal rotor component, the outer rotor of oil pump body, pump shaft and internal rotor composition；It is interference fit between the pump shaft and internal rotor
Connection, and connected between pump shaft and internal rotor without pin shaft.
As an improvement of the present invention, lubricating oil pump gasket is additionally provided between the oil pump cover and oil pump body.
As an improvement of the present invention, pass through positioning pin and hexagonal spiral shell between the oil pump cover and oil pump body
It tethers and connects.
The utility model has the advantages that
Technical solution of the present invention compares traditional scheme, the generation in such a way that internal rotor of lubricating pump component is used interference fit
Facilitate processing by interference fit so that pump shaft drives rotor by frictional force for the mode that pin is fixed, reduce cost,
It can also prevent pin hole machined from causing rotor damaged simultaneously, improve service life.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Each component in Fig. 1 are as follows: 1, oil pump cover, 2, oil pump body, 3, outer rotor, 4, internal rotor component, 5, lubricating oil pump pad
Piece, 6, positioning pin, 7, hex bolts.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, and the present embodiment is with technical solution of the present invention
Premised under implemented, it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
Embodiment 1:
A kind of no pin internal rotor lubricating oil pump as shown in Figure 1, including oil pump cover 1, oil pump body 2, pump shaft and internal rotor group
At internal rotor component 4, outer rotor 3.Be interference fit connection between the pump shaft and internal rotor, and pump shaft and internal rotor it
Between without pin shaft connect.
5 hole of oil pump cover and hex bolts 7 connect.
Technical solution of the present invention compares traditional scheme, the generation in such a way that internal rotor of lubricating pump component is used interference fit
Facilitate processing by interference fit so that pump shaft drives rotor by frictional force for the mode that pin is fixed, reduce cost,
It can also prevent pin hole machined from causing rotor damaged simultaneously, improve service life.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (3)
1. a kind of no pin internal rotor lubricating oil pump, the internal rotor group including oil pump cover, oil pump body, pump shaft and internal rotor composition
Part, outer rotor；It is characterized by: being interference fit connection between the pump shaft and internal rotor, and between pump shaft and internal rotor
No pin shaft connection.
2. a kind of no pin internal rotor lubricating oil pump according to claim 1, it is characterised in that: the oil pump cover and machine oil
Lubricating oil pump gasket is additionally provided between the pump housing.
3. a kind of no pin internal rotor lubricating oil pump according to claim 1 or 2, it is characterised in that: the oil pump cover with
It is connected between oil pump body by positioning pin and hex bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820425851.4U CN208670561U (en) | 2018-03-28 | 2018-03-28 | A kind of no pin internal rotor lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820425851.4U CN208670561U (en) | 2018-03-28 | 2018-03-28 | A kind of no pin internal rotor lubricating oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670561U true CN208670561U (en) | 2019-03-29 |
Family
ID=65822273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820425851.4U Expired - Fee Related CN208670561U (en) | 2018-03-28 | 2018-03-28 | A kind of no pin internal rotor lubricating oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670561U (en) |
-
2018
- 2018-03-28 CN CN201820425851.4U patent/CN208670561U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190329 Termination date: 20200328 |