CN203098173U - Rotor pump provided with cam shaft sleeve - Google Patents
Rotor pump provided with cam shaft sleeve Download PDFInfo
- Publication number
- CN203098173U CN203098173U CN 201320013588 CN201320013588U CN203098173U CN 203098173 U CN203098173 U CN 203098173U CN 201320013588 CN201320013588 CN 201320013588 CN 201320013588 U CN201320013588 U CN 201320013588U CN 203098173 U CN203098173 U CN 203098173U
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- CN
- China
- Prior art keywords
- axis
- plunger
- camshaft
- axle sleeve
- cam
- 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 - Lifetime
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Abstract
The utility model relates to a rotor pump provided with a cam shaft sleeve. A first pump body is fixed at the top end of a lateral cover, a first plunger is arranged in the first pump body in a sliding mode, a first tappet body is arranged on the first plunger, a second pump body is fixed at the bottom end of the lateral cover, a second plunger is arranged in the second pump body in a sliding mode, a second tappet body is arranged on the second plunger, a cam shaft is arranged in the lateral cover in a rotary mode, a round eccentric cam is arranged on the cam shaft, a bushing is sleeved on the round eccentric cam of the cam shaft, the shaft sleeve is sleeved on the bushing, a lubricating oil passage is arranged in an inner circle of the shaft sleeve, and the shaft sleeve drives the first tappet body and the second tappet body. The rotor pump provided with the cam shaft sleeve lowers machining difficulty, and improves practicability and production efficiency.
Description
Technical field
The utility model relates to a kind of rotor pump, especially a kind of rotor pump with camshaft axle sleeve.
Background technique
The existing rotor pump that is used for transfer the fuel, one cam driving gear is arranged in the structure, so that camshaft is bearing in the pump housing rotationally, when rotor pump is worked, plunger in two oil supply components moves reciprocatingly camshaft around the rotation of camshaft axis and about promoting, this oil supply component and outlet valve mating reaction are with transfer the fuel, because the high workload pressure of common rail fuel injection system, by cam driving gear in the camshaft effect big power, this power is set on the tappet body of both sides up and down of cam driving gear, so that the strictness of cam of camshaft processing request, the design of oil pump pretravel in addition makes cam face designing requirement strictness.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can reduce difficulty of processing, slows down the rotor pump with camshaft excentric sleeve of the shake of oil pump under in working order.
The technological scheme that provides according to the utility model, described rotor pump with camshaft axle sleeve, tip portion at side cover is fixed with first pump housing, in first pump housing, be slidingly fitted with first plunger, on first plunger, be provided with the first tappet body, be fixed with second pump housing in the bottom of side cover, in second pump housing, be slidingly fitted with second plunger, on second plunger, be provided with the second tappet body and in side cover, be rotatablely equipped with camshaft, on camshaft, be provided with circular offset cam, on the circular offset cam of camshaft, be socketed with lining, on lining, be socketed with axle sleeve, be provided with oil leab on the interior circle of axle sleeve, axle sleeve drives the described first tappet body and the second tappet body.
The axis of the axis of described first plunger and second plunger is set in parallel.
The axis of described camshaft is with the axis of first plunger that antarafacial is vertical to be provided with, and the axis of camshaft is with the axis of second plunger that antarafacial is vertical to be provided with.
The axis of described first plunger is the axis of offset cam axle left, the axis of second plunger is the axis of offset cam axle left, and the axis of first plunger amplitude that is offset the axis of the described camshaft left axis that equals second plunger is offset the amplitude of the axis of described camshaft to the right.
The amplitude that the axis of described first plunger is offset the axis of described camshaft left is 2mm, and the amplitude that the axis of second plunger is offset the axis of described camshaft to the right is 2mm.
The utility model has reduced difficulty of processing, has improved practicability and manufacturing efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is A-A sectional view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiment.
As shown in the figure, this has the rotor pump of camshaft axle sleeve, tip portion at side cover 9 is fixed with first pump housing 1.1, in first pump housing 1.1, be slidingly fitted with first plunger 6.1, on first plunger 6.1, be provided with the first tappet body 5.1, be fixed with second pump housing 1.2 in the bottom of side cover 9, in second pump housing 1.2, be slidingly fitted with second plunger 6.2, on second plunger 6.2, be provided with the second tappet body 5.2 and in side cover 9, be rotatablely equipped with camshaft 2, on camshaft 2, be provided with circular offset cam 2.1, on the circular offset cam of camshaft 2, be socketed with lining 3, on lining 3, be socketed with axle sleeve 4, be provided with oil leab 7 on the interior circle of axle sleeve 4, axle sleeve 4 drives the described first tappet body 5.1 and the second tappet body 5.2.
The axis of the axis of described first plunger 6.1 and second plunger 6.2 is set in parallel.
The axis of described camshaft 2 is with the axis of first plunger 6.1 that antarafacial is vertical to be provided with, and the axis of camshaft 2 is with the axis of second plunger 6.2 that antarafacial is vertical to be provided with.
The axis of described first plunger 6.1 is the axis of offset cam axle 2 left, the axis of second plunger 6.2 is the axis of offset cam axle 2 left, and the axis of first plunger 6.1 amplitude that is offset the axis of the described camshaft 2 left axis that equals second plunger 6.2 is offset the amplitude of the axis of described camshaft 2 to the right.
The utility model adds that with axle sleeve 4 lining 3 is installed on the circular offset cam of camshaft 2, be used for replacing the single polygonal camshaft of tradition, rotatablely move around the camshaft axis by camshaft 2, eccentric cam causes axle sleeve 4 to do eccentric rotary together, eccentric force acts on the first tappet body 5.1 and the second tappet body 5.2 moves reciprocatingly first plunger 6.1 and second plunger 6.2, reach the purpose of transfer the fuel equally, this design has slowed down under the requirement of high workload pressure the designing requirement to cam, the circular surface of axle sleeve 4 is more conducive to processing, and slows down the shake of oil pump under in working order.
Rotor pump of the present utility model comprises that this rotor pump has first pump housing 1.1 and second pump housing 1.2, direction upper support at side cover 9 inner camshaft axis a camshaft 2, the cam of this camshaft 2 is according to oil pump pretravel, be designed to eccentric circular cam, put lining 3 and the axle sleeve 4 that designs successively at the circular cam face of off-centre, utilize side cover 9 elements such as grade to be fixed on accurate position in the pump housing, then oil supply component is up and down loaded onto oil pump, the amplitude that the axis of first plunger 6.1 is offset the axis of described camshaft 2 left is 2mm, the amplitude that the axis of second plunger 6.2 is offset the axis of described camshaft 2 to the right is 2mm, the axis of the axis of first plunger 6.1 and second plunger 6.2 is at a distance of 4mm, so design is in order to satisfy the design of fuel feeding curve, camshaft 2 rotates on the camshaft center line, eccentric cam drives axle sleeve 4, eccentric rotary causes the first tappet body 5.1 and the second tappet body 5.2 that contact with axle sleeve 4 to move reciprocatingly on center line separately, thereby first plunger 6.1 in the drive oil supply component and second plunger 6.2 move reciprocatingly, and finish the work purpose of rotor pump under the cooperation of pump head and outlet valve equally.
Claims (5)
1. rotor pump with camshaft axle sleeve, tip portion at side cover (9) is fixed with first pump housing (1.1), in first pump housing (1.1), be slidingly fitted with first plunger (6.1), on first plunger (6.1), be provided with the first tappet body (5.1), be fixed with second pump housing (1.2) in the bottom of side cover (9), in second pump housing (1.2), be slidingly fitted with second plunger (6.2), in side cover (9), be rotatablely equipped with camshaft (2) being provided with the second tappet body (5.2) on second plunger (6.2), it is characterized in that: on camshaft (2), be provided with circular offset cam (2.1), on the circular offset cam of camshaft (2), be socketed with lining (3), on lining (3), be socketed with axle sleeve (4), be provided with oil leab (7) on the interior circle of axle sleeve (4), axle sleeve (4) drives the described first tappet body (5.1) and the second tappet body (5.2).
2. the rotor pump with camshaft excentric sleeve as claimed in claim 1 is characterized in that: the axis of the axis of described first plunger (6.1) and second plunger (6.2) is set in parallel.
3. the rotor pump with camshaft axle sleeve as claimed in claim 1, it is characterized in that: the axis of described camshaft (2) is with the axis of first plunger (6.1) that antarafacial is vertical to be provided with, and the axis of camshaft (2) is with the axis of second plunger (6.2) that antarafacial is vertical to be provided with.
4. the rotor pump with camshaft axle sleeve as claimed in claim 1, it is characterized in that: the axis of described first plunger (6.1) is the axis of offset cam axle (2) left, the axis of second plunger (6.2) is the axis of offset cam axle (2) to the right, and the axis of first plunger (6.1) amplitude that is offset the axis of described camshaft (2) the left axis that equals second plunger (6.2) is offset the amplitude of the axis of described camshaft (2) to the right.
5. the rotor pump with camshaft axle sleeve as claimed in claim 1, it is characterized in that: the amplitude that the axis of described first plunger (6.1) is offset the axis of described camshaft (2) left is 2mm, and the amplitude that the axis of second plunger (6.2) is offset the axis of described camshaft (2) to the right is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013588 CN203098173U (en) | 2013-01-10 | 2013-01-10 | Rotor pump provided with cam shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013588 CN203098173U (en) | 2013-01-10 | 2013-01-10 | Rotor pump provided with cam shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098173U true CN203098173U (en) | 2013-07-31 |
Family
ID=48849580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013588 Expired - Lifetime CN203098173U (en) | 2013-01-10 | 2013-01-10 | Rotor pump provided with cam shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098173U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047100A (en) * | 2013-01-10 | 2013-04-17 | 无锡开普机械有限公司 | Rotor pump with cam shaft sleeve |
| CN114017313A (en) * | 2021-11-26 | 2022-02-08 | 宁波邦威泵业有限公司 | Cam type double-rotor pump |
| WO2023115328A1 (en) * | 2021-12-21 | 2023-06-29 | 张帆 | High-pressure water pump based on water or aqueous solution lubrication |
-
2013
- 2013-01-10 CN CN 201320013588 patent/CN203098173U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047100A (en) * | 2013-01-10 | 2013-04-17 | 无锡开普机械有限公司 | Rotor pump with cam shaft sleeve |
| CN114017313A (en) * | 2021-11-26 | 2022-02-08 | 宁波邦威泵业有限公司 | Cam type double-rotor pump |
| CN114017313B (en) * | 2021-11-26 | 2023-08-22 | 宁波邦威泵业有限公司 | Cam type double-rotor pump |
| WO2023115328A1 (en) * | 2021-12-21 | 2023-06-29 | 张帆 | High-pressure water pump based on water or aqueous solution lubrication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191011 Granted publication date: 20130731 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20201120 Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |