CN208686571U - A kind of internal rotor of lubricating pump component - Google Patents
A kind of internal rotor of lubricating pump component Download PDFInfo
- Publication number
- CN208686571U CN208686571U CN201821198592.2U CN201821198592U CN208686571U CN 208686571 U CN208686571 U CN 208686571U CN 201821198592 U CN201821198592 U CN 201821198592U CN 208686571 U CN208686571 U CN 208686571U
- Authority
- CN
- China
- Prior art keywords
- internal rotor
- pump shaft
- rotor
- pump
- pin
- 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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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses a kind of internal rotor of lubricating pump components, including pump shaft and internal rotor, the pump shaft is arranged in the axis hole of internal rotor, it and is interference fit between pump shaft and the axis hole of internal rotor, pin hole is provided on the pump shaft, it is provided with spring and positioning pin in the pin hole, the cotter way matched with the positioning pin is provided on the inner wall of the internal rotor.The mode that the utility model replaces pin fixed in such a way that internal rotor of lubricating pump component is used interference fit, by interference fit so that pump shaft drives rotor by frictional force, facilitates processing, reduce cost, it can also prevent pin hole machined from causing rotor damaged simultaneously, improve service life；Simultaneously by using the form of spring and positioning pin, it can play the role of assisting clamping position, can be matched in this way with interference fit, improve the service life of internal rotor component.
Description
Technical field
The present invention relates to engine oil pump of internal combustion engine, in particular to a kind of internal rotor of lubricating pump component.
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 between pump shaft and internal rotor by
Through-hole is stamped on pump shaft and internal rotor, is then connected by pin shaft, due to getting through hole on internal rotor and pump shaft, in length
Rotor breaks are easy to cause after time operating, influence service life；Furthermore also have by will be used between pump shaft and internal rotor
It is full of cooperation, but after long time running, abrasion is inevitably had between the outer wall of pump shaft and the inner wall of internal rotor, it is long
Time will lead to and skid between pump shaft and internal rotor, influence using.
Summary of the invention
The purpose of the invention is to overcome the above problem, a kind of internal rotor of lubricating pump component is provided.
In order to achieve the above objectives, the method that the present invention uses is: a kind of internal rotor of lubricating pump component, including pump shaft and interior
Rotor, the pump shaft are arranged in the axis hole of internal rotor, and are interference fit between pump shaft and the axis hole of internal rotor, described
Pump shaft on be provided with pin hole, spring and positioning pin are provided in the pin hole, on the inner wall of the internal rotor
It is provided with the cotter way matched with the positioning pin.
As an improvement of the present invention, the positioning pin is provided with 2 groups, is symmetrically distributed on the pump shaft.
As an improvement of the present invention, the pin hole is opened up along the radial direction of pump shaft.
As an improvement of the present invention, the lead angle of taper is provided on the inside of described internal rotor one end.
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；Simultaneously by using spring and positioning pin
Form, can play the role of assist clamping position, can be matched in this way with interference fit, improve internal rotor component
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, pump shaft, 2, pin hole, 3, positioning pin, 4, spring, 5, chamfering, 6, cotter way, 7, internal rotor.
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 internal rotor of lubricating pump component as shown in Figure 1, including pump shaft 1 and internal rotor 7, the setting of pump shaft 1 exist
It in the axis hole of internal rotor 7, and is interference fit between pump shaft 1 and the axis hole of internal rotor 7.
It is provided with pin hole 2 on the pump shaft 1, spring 4 and positioning pin 3 are provided in the pin hole 2, in institute
The cotter way 6 matched with the positioning pin 3 is provided on the inner wall for the internal rotor 7 stated.The positioning pin is provided with 2 groups,
It is symmetrically distributed on the pump shaft.The pin hole 2 is opened up along the radial direction of pump shaft 1.
The lead angle 5 of taper is provided on the inside of described 7 one end of internal rotor, the chamfering 5 by the way that taper is arranged is convenient for
Pump shaft 1 is encased in internal rotor 7.
The present invention, using the mode for replacing pin fixed by way of being interference fitted, passes through by internal rotor of lubricating pump component
Interference fit is so that pump shaft facilitates processing, reduce cost, while can also prevent pinhole from adding by frictional force drive rotor
Work causes rotor damaged, improves service life；Simultaneously by using the form of spring and positioning pin, auxiliary clamping can be played
The effect of positioning can match in this way with interference fit, improve the service life of internal rotor component.
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 (4)
1. a kind of internal rotor of lubricating pump component, it is characterised in that: including pump shaft and internal rotor, the pump shaft setting turns inside
In the axis hole of son, and it is interference fit between pump shaft and the axis hole of internal rotor, pin hole is provided on the pump shaft, described
Pin hole in be provided with spring and positioning pin, be provided on the inner wall of the internal rotor and matched with the positioning pin
Cotter way.
2. a kind of internal rotor of lubricating pump component according to claim 1, it is characterised in that: the positioning pin is provided with 2
Group is symmetrically distributed on the pump shaft.
3. a kind of internal rotor of lubricating pump component according to claim 1 or 2, it is characterised in that: the pin hole is along pump
The radial direction of axis opens up.
4. a kind of internal rotor of lubricating pump component according to claim 1, it is characterised in that: in described internal rotor one end
The lead angle of taper is provided on inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198592.2U CN208686571U (en) | 2018-07-27 | 2018-07-27 | A kind of internal rotor of lubricating pump component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198592.2U CN208686571U (en) | 2018-07-27 | 2018-07-27 | A kind of internal rotor of lubricating pump component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686571U true CN208686571U (en) | 2019-04-02 |
Family
ID=65882519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821198592.2U Expired - Fee Related CN208686571U (en) | 2018-07-27 | 2018-07-27 | A kind of internal rotor of lubricating pump component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208686571U (en) |
-
2018
- 2018-07-27 CN CN201821198592.2U patent/CN208686571U/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 |
Granted publication date: 20190402 Termination date: 20190727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |