CN203412758U - Blades of direct-current electric refueling pump - Google Patents
Blades of direct-current electric refueling pump Download PDFInfo
- Publication number
- CN203412758U CN203412758U CN201320411580.4U CN201320411580U CN203412758U CN 203412758 U CN203412758 U CN 203412758U CN 201320411580 U CN201320411580 U CN 201320411580U CN 203412758 U CN203412758 U CN 203412758U
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- Prior art keywords
- blade
- rib
- cuboid
- pump
- blades
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- Expired - Fee Related
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Abstract
The utility model discloses blades of a direct-current electric refueling pump. Each blade is of a cuboid structure; ribs are arranged on the front surface of the cuboid structure; a fuel discharging groove is formed between the ribs. Each blade is characterized in that the thickness of a solid cuboid is greater than 1 mm and the distance from the top end of each rib to that of the cuboid is greater than 0.1 mm. Better wear resistance of the main edge of each blade is guaranteed through the thickness of each blade, and each rib is contacted with the inner side surface of a cylinder of a pump body only when the main edge of each blade is worn to the position of each rib, so that the service life of each blade is prolonged and the inner leakage of a blade pump is reduced.
Description
Technical field
The utility model relates to engineering machinery oiling field, relates in particular to the blade of direct current drive gasoline pump.
Background technique
The blade of current existing direct current drive gasoline pump has following two kinds of mode of structure:
The first mode of structure is: blade consists of a solid cuboid.The front of cuboid is furnished with rib, is oil-discharge trough between rib.Rib top is concordant with cuboid top.Because the position of main cutting edge and pump housing cylinder inner side surface Line of contact constantly changes, when rib contacts with pump housing cylinder inner side surface, oil-discharge trough can form leak point.If rib top and cuboid top distance are too near, just rib can contact with the pump housing cylinder inner side surface generation leakage after cuboid wearing and tearing.
The second mode of structure is:
Blade consists of a solid cuboid.The front of cuboid is furnished with rib, is oil-discharge trough between rib.The thickness of cuboid is too thin, the similar thin slice of main cutting edge.When contacting with pump housing cylinder inner side surface, be same Line of contact all the time.Cuboid can Fast Wearing like this.
Model utility content
Technical problem to be solved in the utility model is to provide for the existing deficiency of blade of existing direct current drive gasoline pump a kind of blade of direct current drive gasoline pump of improvement, to extend the working life of blade, reduces the interior leakage of vane pump.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of blade of direct current drive gasoline pump, being a rectangular structure, in the front of described rectangular structure, being furnished with rib, is oil-discharge trough between rib, it is characterized in that: the thickness of solid cuboid is greater than 1 millimeter, rib top is greater than 0.1 millimeter apart from the distance on cuboid top.
In a preferred embodiment of the present utility model, described rib top is greater than 1 millimeter apart from the distance on cuboid top.
Working principle of the present utility model is: blade is arranged in the groove of blade pump rotor, and blade can move reciprocatingly in groove.When rotor rotates, blade contacts with pump housing cylinder madial wall all the time under the effect of self centrifugal force and its root pressure oil, and the side of blade contacts with pump interior edge face and end cap, forms like this containment volume of a sealing between adjacent two blades.When rotor rotates, the sealed volume between adjacent blades alternately increases and dwindles, and forms oil suction district and laminated oil zone.The position of the main cutting edge of blade and pump housing cylinder inner side surface Line of contact constantly changes, because main cutting edge is entity structure, as long as rib contact with pump housing cylinder inner side surface with regard to can not producing leakage.The thickness of blade has guaranteed that the main cutting edge of blade can have stronger antiwear property, and while only having the main cutting edge of blade to wear up to rib position, rib just contacts with pump housing cylinder inner side surface.Above measure has extended the working life of blade, has reduced the interior leakage of vane pump.
Accompanying drawing explanation
Fig. 1 is the use schematic diagram of blade of the present utility model in vane pump.In figure, can see alternately increasing and dwindling of sealed volume district between adjacent two blades.Can see that rotor at diverse location is, the position of main cutting edge and pump housing cylinder inner side surface Line of contact constantly changes simultaneously.
Fig. 2 is the structural representation of the utility model blade.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the A-A sectional view of Fig. 2.
Embodiment
Now by reference to the accompanying drawings to further detailed explanation of the utility model.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
Referring to Fig. 2 to Fig. 4, the blade 100 of a kind of direct current drive gasoline pump providing in figure, is a rectangular structure, and 130 intervals, front of this rectangular structure are furnished with rib 110, are oil-discharge trough 120 between rib 110.The thickness A 1 of rectangular structure is greater than 1 millimeter, and rib 110 tops are greater than 1 millimeter according to the distance B1 on rectangular structure top 140.
Referring to Fig. 1, blade 100 is arranged in the groove 210 of blade pump rotor 200, and blade 100 can move reciprocatingly in groove 210.When rotor 200 rotates, blade 100 contacts with pump housing cylinder madial wall 300 all the time under the effect of self centrifugal force and its root pressure oil, the side of blade 100 with pump interior edge face and end cap contact, between adjacent two blades 100, form like this containment volume of a sealing.When rotor rotates, the sealed volume between adjacent blades 100 alternately increases and dwindles, and forms oil suction district and laminated oil zone.The position of the main cutting edge of blade 100 (top 140) and pump housing cylinder inner side surface Line of contact constantly changes, because main cutting edge is entity structure, as long as rib 110 contact with pump housing cylinder inner side surface 300 with regard to can not producing leakage.The thickness of A1 has guaranteed that the main cutting edge of blade can have stronger antiwear property, and only has the main cutting edge of blade to wear and tear while surpassing B1, and rib 110 just contacts with pump housing cylinder inner side surface 300.Above measure has extended the working life of blade, has reduced the interior leakage of vane pump.
Claims (2)
1. the blade of a direct current drive gasoline pump, being a rectangular structure, in the front of described rectangular structure, being furnished with rib, is oil-discharge trough between rib, it is characterized in that: the thickness of solid cuboid is greater than 1 millimeter, rib top is greater than 0.1 millimeter apart from the distance on cuboid top.
2. the blade of direct current drive gasoline pump as claimed in claim 1, is characterized in that, described rib top is greater than 1 millimeter apart from the distance on cuboid top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411580.4U CN203412758U (en) | 2013-07-10 | 2013-07-10 | Blades of direct-current electric refueling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411580.4U CN203412758U (en) | 2013-07-10 | 2013-07-10 | Blades of direct-current electric refueling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412758U true CN203412758U (en) | 2014-01-29 |
Family
ID=49975650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320411580.4U Expired - Fee Related CN203412758U (en) | 2013-07-10 | 2013-07-10 | Blades of direct-current electric refueling pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203412758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321905A (en) * | 2013-07-10 | 2013-09-25 | 上海霍雷加新材料科技有限公司 | Blade of direct-current electric gasoline pump |
-
2013
- 2013-07-10 CN CN201320411580.4U patent/CN203412758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321905A (en) * | 2013-07-10 | 2013-09-25 | 上海霍雷加新材料科技有限公司 | Blade of direct-current electric gasoline pump |
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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: 20140129 Termination date: 20150710 |
|
| EXPY | Termination of patent right or utility model |