CN2216608Y - Internal gear-meshing oil pump - Google Patents
Internal gear-meshing oil pump Download PDFInfo
- Publication number
- CN2216608Y CN2216608Y CN 94242528 CN94242528U CN2216608Y CN 2216608 Y CN2216608 Y CN 2216608Y CN 94242528 CN94242528 CN 94242528 CN 94242528 U CN94242528 U CN 94242528U CN 2216608 Y CN2216608 Y CN 2216608Y
- Authority
- CN
- China
- Prior art keywords
- empiecement
- pump cover
- oil pump
- utility
- 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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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses a new inner gear-meshing oil pump which belongs to the technical field of oil pumps, comprising a front and a back pump covers, a middle piece, a mandrel, an inner and an outer rotors. The utility model also comprises inlaid pieces; the inner end surfaces of the front and the back pump covers are respectively provided with a step hole, the inlaid pieces are arranged in the step holes, and the inlaid pieces and the inner end surfaces of the pump covers are on a uniform horizontal line. When the oil pump works, the end surfaces of inner gears on the inner end surfaces of the front and the back pump covers are not directly contacted, and the oil pump can not be heated easily. Not only engine oil can be used, but also kerosene or gasoline can be used. The utility model has the advantages of abrasion resistance, low noise and low cost.
Description
The utility model belongs to oil pump technology field, particularly the inside engaged gear oil pump technology field.
At present, domestic existing inside engaged gear oil pump is to be made of protecgulum, bonnet and middle sheet, this oil pump, because the front and rear covers interior edge face directly contacts with the gear both ends of the surface, wearing and tearing, and oil pump are easily generated heat easily, and are high to requiring with oil.
The utility model provides a kind of above-mentioned defective that overcomes, and during work, the internal gear both ends of the surface directly do not contact with the forward and backward pump cover interior edge face of pump, and noise is low, and is wear-resistant, and oil pump is difficult for the novel inside engaged gear oil pump of heating.
Now be described in detail the technical solution of the utility model:
The utility model comprises protecgulum, bonnet, middle sheet, axle, internal rotor, external rotor, oil distributing hole, sealer, it also comprises empiecement, be respectively equipped with step hole at front pump cover and rear pump cover interior edge face, empiecement is located in the step hole, and empiecement and pump cover interior edge face are on unified horizontal line.
The also adoptable technological scheme of the utility model is: the oilhole on the rear pump cover interior edge face is shape hole, garden.
The another technological scheme of the utility model is: empiecement adopts metallic material different with the pump cover face or nonmetallic material to make.
The better technological scheme of the utility model is: empiecement is located at the center of forward and backward pump cover interior edge face.
The technological scheme that the utility model can be taked again is: the back empiecement is provided with the turnover oilhole that matches with rear pump cover upper oil hole position.
Advantage of the present utility model and effect:
The utility model is owing to inlay the pad of having established different materials on the forward and backward lid interior edge face of oil pump, during work, the internal gear both ends of the surface directly do not contact with the forward and backward lid interior edge face of oil pump, and contact with it by empiecement, so the utility model is wear-resistant, be difficult for heating, the long service life operating noise is low, not only machine oil can be used, also kerosene or gasoline can be used.And cost is low, and is good in economic efficiency.
Accompanying drawing is a structural representation of the present utility model:
1 is protecgulum among the figure, the 2nd, and intermediary, the 3rd, bonnet, the 4th, axle, the 5th, internal rotor, the 6th, empiecement, the 7th, external rotor, the 8th, sealer, the 9th, empiecement.
Now introduce embodiment:
As shown in the figure, the utility model comprises front pump cover, middle sheet, rear pump cover, oilhole, axle, internal rotor, external rotor, sealer, it also comprises empiecement, on front pump cover 1 and rear pump cover 3 interior edge faces, a step hole is set respectively, after in empiecement and step hole, being coated with oil resistant sealer 8, adopt interference fit method to be pressed in the step hole empiecement 6 and 9, empiecement and pump cover are fixed by locating stud, with empiecement 6 and 9 correct grindings is on the unified horizontal line with pump cover 1 and 3 interior edge faces extremely, former waist shape oilhole on the bonnet 3 is changed be made as the hole, garden.Empiecement 9 be provided with that position with bonnet 3 upper oil holes matches into and out of oilhole.And oil inlet hole makes it consistent with inside and outside gear engagement working state greater than oil outlet.
The position of set empiecement is the center at the pump cover interior edge face on protecgulum and the bonnet 3.
Empiecement 6 adopts the material different with pump cover with 9, can be metallic material, as 20Cr carburizing or nonmetallic material, as phenolic aldehyde laminated cloth rod, phenolic aldehyde lamination fabric swatch.
Claims (5)
1, novel inside engaged gear oil pump, it comprises front pump cover, rear pump cover, middle sheet, axle, internal rotor, external rotor, oilhole, sealer, it is characterized in that, it also comprises empiecement, be respectively equipped with step hole at front pump cover and rear pump cover interior edge face, empiecement is located in the step hole, and empiecement and pump cover interior edge face are on unified horizontal line.
2, novel inside engaged gear oil pump according to claim 1 is characterized in that, the oilhole on the rear pump cover interior edge face is shape hole, garden.
3, novel inside engaged gear oil pump according to claim 1 is characterized in that empiecement adopts metallic material different with pump cover or nonmetallic material to make.
4, novel inside engaged gear oil pump according to claim 1 is characterized in that empiecement is located at the center of forward and backward pump cover interior edge face.
5, novel inside engaged gear oil pump according to claim 1 is characterized in that, back empiecement is provided with the turnover oilhole that matches with rear pump cover upper oil hole position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94242528 CN2216608Y (en) | 1994-08-31 | 1994-08-31 | Internal gear-meshing oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94242528 CN2216608Y (en) | 1994-08-31 | 1994-08-31 | Internal gear-meshing oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2216608Y true CN2216608Y (en) | 1996-01-03 |
Family
ID=33849103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94242528 Expired - Fee Related CN2216608Y (en) | 1994-08-31 | 1994-08-31 | Internal gear-meshing oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2216608Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529378A (en) * | 2018-05-23 | 2019-12-03 | 罗伯特·博世有限公司 | Connection component with feeding pump and elastic element |
-
1994
- 1994-08-31 CN CN 94242528 patent/CN2216608Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529378A (en) * | 2018-05-23 | 2019-12-03 | 罗伯特·博世有限公司 | Connection component with feeding pump and elastic element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |