CN202203104U - Electric fuel oil pump with armature rotating shaft support steel post - Google Patents
Electric fuel oil pump with armature rotating shaft support steel post Download PDFInfo
- Publication number
- CN202203104U CN202203104U CN2011202883576U CN201120288357U CN202203104U CN 202203104 U CN202203104 U CN 202203104U CN 2011202883576 U CN2011202883576 U CN 2011202883576U CN 201120288357 U CN201120288357 U CN 201120288357U CN 202203104 U CN202203104 U CN 202203104U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- armature
- electric fuel
- blind hole
- 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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Abstract
The utility model relates to an electric fuel oil pump with an armature rotating shaft support steel post, which comprises an end cover combination, a stator combination, an armature and a pump station combination, wherein the outer end of the pump station combination is formed by a pump casting at the upper end and a pump cover at the lower end. The electric fuel oil pump is characterized in that the end part of the lower end of an armature rotating shaft of the armature is in a spherical surface shape, a blind hole is arranged in the middle part of the inner end surface of the lower end pump cover of the pump station combination, the end part of the upper end of the inner wall of the blind hole is provided with a circular bead, a steel post is pressed into the blind hole, and the end surface of the upper end of the steel post forms contact support connection with the spherical surface-shaped end part of the lower end of the armature rotating shaft. The electric fuel oil pump is applicable to an electronic control fuel jet system of an automobile.
Description
Technical field
The utility model relates to a kind of electric fuel punp, particularly relates to a kind of electric fuel punp that steel column is supported in the armature rotating shaft that has.
Background technique
The effect of electric fuel punp is with fuel pressurization, and pumps into oil supply pipeline continuously, supplies with the enough and fuel oil that have certain pressure of oil-fired system.Electric fuel punp is made up of end cap combination, stator combination, armature and pumping plant combination usually; The motor portion of electric fuel punp comprises permanent magnet that is fixed on the shell and the armature that produces electromagnetic torque and is installed in the brushgear in the end cap combination; The permanent magnet motor energising promptly drives pump housing rotation, fuel oil is sucked the electric fuel punp inside of flowing through from filler opening; Extrude from oil outlet again, to the oil-fired system fuel feeding.
The armature rotating shaft of normally used electric fuel punp armature is a tack near an end of pump cover; What support this tack is the sphere of steel ball, and steel ball is pressed into the center of pump cover, when real work; The armature rotating shaft is a revolving part; The steel ball of pump cover center is fixed, be the armature rotating shaft near an end of pump cover be tack on the sphere of steel ball, make rotating operation, make that so not only the stability of rotation property of this structure is relatively poor; And do not reach desirable effect to the oil-fired system fuel feeding yet, obviously influence electric fuel punp working life simultaneously.
Summary of the invention
The purpose of the utility model is that a kind of electric fuel punp that steel column is supported in the armature rotating shaft that has will be provided; It not only can make the armature rotating shaft of electric fuel punp armature do the stable rotation operation effectively; And, can also make and obtain practical guarantee in working life of electric fuel punp.
Propose following design proposal in order to reach above-mentioned purpose the utility model: a kind of electric fuel punp with armature rotating shaft support steel column of the utility model comprises end cap combination, stator combination, armature and pumping plant combination; The outer end of described pumping plant combination is formed by the pump case of upper end and the pump cover of lower end; The end, lower end of the armature rotating shaft of described armature is spherical shape; The center of the lower end pump cover interior edge face of described pumping plant combination is provided with a blind hole; The place, end, upper end of the inwall of described blind hole is provided with a shoulder; Be pressed into a steel column in the described blind hole, the upper end end face of described steel column forms to contact to support with the place, end, lower end that is spherical shape of armature rotating shaft and connects.
The shoulder place of described blind hole inwall one side is provided with the gas guide groove of a L-shaped shape to the place, bottom surface that is being connected with this inwall one side.
The electric fuel punp with armature rotating shaft support steel column of the utility model; Owing to take to make and become to be spherical shape in the end, lower end of the armature rotating shaft of the described armature of the electric fuel punp that is constituted by end cap combination, stator combination, armature and pumping plant combination; Center at the lower end pump cover interior edge face of described pumping plant combination makes into a blind hole; Place, end, upper end at the inwall of described blind hole makes into a shoulder; The shoulder place of described blind hole inwall one side makes into the gas guide groove of a L-shaped shape to the place, bottom surface that is being connected with this inwall one side; Described blind hole is interior and be pressed into a steel column, and the upper end end face of described steel column forms to contact to support with the place, end, lower end that is spherical shape of armature rotating shaft and connects.
Therefore, the electric fuel punp of the utility model has following advantage:
1, the steel column of the utility model can directly use the standard piece of roller bearing; And planeness is high, high conformity; The diameter of axle dimensional accuracy of steel column standard piece is high, is easy to select the tolerance of size of the blind hole at suitable pump cover interior edge face middle part to satisfy the torsional property requirement, and low price.
2, the gas guide groove of the L-shaped shape established of the place, bottom surface that connecting of the blind hole inwall one side place at the pump cover interior edge face of the utility model middle part and inwall one side, and can make steel column be easy to be pressed in the pump cover, easy to process.
When 3, the end, lower end that is spherical shape of the armature rotating shaft of the utility model is in real work; Be on the end face of the upper end of steel column, to make rotating operation; So; The performance of rotation be in apparently higher than the end, lower end that is plane shape of armature rotating shaft the pump cover center steel ball on sphere, make rotating operation, gyro is exactly the representative instance that the end, lower end that is spherical shape is in smooth running on the plane.
Description of drawings
The concrete structure of the utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the schematic representation of the electric fuel punp of the utility model.
Fig. 2 is the partial schematic sectional view of the electric fuel punp of the utility model.
Fig. 3 is the pump cover schematic representation of the electric fuel punp of the utility model.
Fig. 4 is the schematic top plan view of pump cover of the electric fuel punp of the utility model.
Embodiment
Below will combine accompanying drawing that the electric fuel punp of the utility model is done further to describe in detail.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the electric fuel punp with armature rotating shaft support steel column of this model utility includes end cap combination 1, stator combination 2, armature 3 and pumping plant combination 4.
The end, lower end of the armature rotating shaft 7 of described armature 3 is spherical shape.
The outer end of described pumping plant combination 4 is formed by the pump case 5 of upper end and 6 of the pump covers of lower end; The center of lower end pump cover 6 interior edge faces of described pumping plant combination 4 is provided with a blind hole 8; The place, end, upper end of the inwall of described blind hole 8 is provided with a shoulder 9; Shoulder 9 places of described blind hole 8 inwalls one side are provided with the gas guide groove 10 of a L-shaped shape to the place, bottom surface that is being connected with this inwall one side; Be pressed into a steel column 11 in the described blind hole 8, the upper end end face of described steel column 11 forms to contact to support with the place, end, lower end that is spherical shape of armature rotating shaft 7 and connects.
The characteristic of the electric fuel punp with armature rotating shaft support steel column of the utility model is that the end, lower end of the armature rotating shaft of described armature is spherical shape; The center of described pump cover interior edge face is provided with a blind hole; The place, end, upper end of the inwall of described blind hole is provided with a shoulder; Be pressed into a steel column in the described blind hole, the upper end end face of described steel column forms to contact to support with the place, end, lower end that is spherical shape of armature rotating shaft and connects.As just simply the characteristic of the utility model being transplanted to the protection category that belongs to the utility model on armature rotating shaft and the pump cover of roller pump, gear pump or vane pump of electric fuel punp equally.
Claims (2)
1. one kind has the electric fuel punp that steel column is supported in the armature rotating shaft; It comprises end cap combination (1), stator combination (2), armature (3) and pumping plant combination (4); The outer end of described pumping plant combination (4) is formed by the pump case (5) of upper end and the pump cover (6) of lower end; The end, lower end that it is characterized in that the armature rotating shaft (7) of described armature (3) is spherical shape; The center of lower end pump cover (6) interior edge face of described pumping plant combination (4) is provided with a blind hole (8); The place, end, upper end of the inwall of described blind hole (8) is provided with a shoulder (9), has been pressed into a steel column (11) in the described blind hole (8), and the upper end end face of described steel column (11) forms to contact to support with the place, end, lower end that is spherical shape of armature rotating shaft (7) and connects.
2. a kind of electric fuel punp that steel column is supported in the armature rotating shaft that has according to claim 1 is characterized in that the shoulder (9) of described blind hole (8) inwall one side locates to be provided with to the place, bottom surface that is being connected with this inwall one side the gas guide groove (10) of a L-shaped shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202883576U CN202203104U (en) | 2011-08-10 | 2011-08-10 | Electric fuel oil pump with armature rotating shaft support steel post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202883576U CN202203104U (en) | 2011-08-10 | 2011-08-10 | Electric fuel oil pump with armature rotating shaft support steel post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203104U true CN202203104U (en) | 2012-04-25 |
Family
ID=45967226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202883576U Expired - Fee Related CN202203104U (en) | 2011-08-10 | 2011-08-10 | Electric fuel oil pump with armature rotating shaft support steel post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807214A (en) * | 2013-04-26 | 2014-05-21 | 上海柱信汽车电子燃油系统有限公司 | Fuel oil pump core with diversion port in pump cover |
-
2011
- 2011-08-10 CN CN2011202883576U patent/CN202203104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807214A (en) * | 2013-04-26 | 2014-05-21 | 上海柱信汽车电子燃油系统有限公司 | Fuel oil pump core with diversion port in pump cover |
| CN103807214B (en) * | 2013-04-26 | 2016-02-24 | 上海柱信汽车电子燃油系统有限公司 | Fuel pump core with split-flow opening on pump cover |
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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 |
Granted publication date: 20120425 Termination date: 20180810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |