CN201386633Y - Axial plunger pump - Google Patents
Axial plunger pump Download PDFInfo
- Publication number
- CN201386633Y CN201386633Y CN200920101558U CN200920101558U CN201386633Y CN 201386633 Y CN201386633 Y CN 201386633Y CN 200920101558 U CN200920101558 U CN 200920101558U CN 200920101558 U CN200920101558 U CN 200920101558U CN 201386633 Y CN201386633 Y CN 201386633Y
- Authority
- CN
- China
- Prior art keywords
- pump
- rotating shaft
- axial plunger
- plunger pump
- curved surface
- 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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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a hydraulic pump, in particular to an axial plunger pump which comprises a pump body and a rotating shaft arranged on the pump body by a bearing. The axial plunger pump is characterized in that the rotating shaft is provided with a circular ring body; and a circular ring surface of the circular ring body, which is contacted with the head part of a plunger, is a wave-shaped curved surface. The axial plunger pump has small pulsation frequency and uniform oil supply; no backflow exists in the axial plunger pump; the working pressure of the axial plunger pump is great and can be regulated into 20MPa for the uniform oil supply; and the discharge amount of the axial plunger pump can be determined according to the need. In the case of three plungers and four wave crests, 12 times of oil supply are conducted at each rotation circle of the rotating shaft; and if the rotation speed of the rotating shaft reaches 1000 circles per minute, 12,000 times of oil supply are sequentially conducted.
Description
Technical field
The utility model relates to a kind of oil hydraulic pump, specifically a kind of axial piston pump.
Background technique
Existing gear pump is owing to pulsation is big, noise is big, easy to wear, and wearing and tearing back maintenance difficult, and pressure is low in addition, efficient is low is limited to a great extent.The pulsation of cam-type axial piston pump is also very big, no matter because be to adorn several plungers, rotating shaft rotate a week also can only be a pump work once.Radial plunger pump is with the principle basically identical of swash plate plunger pump, and its shortcoming is that radial dimension is big, and pintle is easy to wearing and tearing, leaks big.
Summary of the invention
The purpose of this utility model provides that a kind of ripple frequency is little, the uniform axial piston pump of fuel feeding.
The technological scheme that its technical problem that solves the utility model adopts is: comprise the pump housing, be contained in rotating shaft on the pump housing by bearing, a cirque body is installed in the rotating shaft, the toroidal surface that cirque body contacts with plunger head is the waveform curved surface.
Above-mentioned waveform curved surface is the sinusoidal curve curved surface.
The curve and surface that above-mentioned waveform curved surface replaces for the upper semi-circle lower semi-circle.
Above-mentioned waveform curved surface has 3-6 crest.
The quantity of above-mentioned plunger is 3-6.
The utility model has following advantage compared with prior art:
This axial piston pump does not have interior backflow, and working pressure is very big, and it is even to be adjusted to the 20MPa fuel feeding, and discharge capacity can be decided with the need.If four crests of three plungers, when a moving week of rotating shaft revolution, fuel feeding 12 times successively just, 1000 rev/mins of rotating shaft turn ups are with regard to fuel feeding 12000 times.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the A A view (cirque body side view of the present utility model) of Fig. 1,
Fig. 3 is the B-B view (plunger layout schematic representation of the present utility model) of Fig. 1.
Among the figure, 1. rotating shaft, the 2. pump housing, 3. cirque body, 4. plunger, the 5. pump housing, 6. retracting spring, 7. plunger bushing, 8. oil distributing valve.
Embodiment
In the drawings, the utility model comprises: rotating shaft 1, the pump housing 2, the pump housing 5, plunger 4, retracting spring 6, plunger bushing 7, oil distributing valve 8, plunger 4 is installed in the plunger bushing 7, rotating shaft 1 is contained on the pump housing by bearing, a cirque body 3 is installed in the rotating shaft 1, the toroidal surface that cirque body 3 contacts with plunger 4 heads is the waveform curved surface, four crests are arranged on the waveform curved surface, be equivalent to have four cams, pump has three plungers 4, retracting spring 6 makes plunger 4 be adjacent to toroidal surface always, plunger 4 by oil distributing valve 8 according to oil suction with press oil, when a moving week of rotating shaft 1 revolution, fuel feeding 12 times successively just, if 1000 rev/mins of rotating shaft turn ups are with regard to fuel feeding 12000 times.
Claims (5)
1. axial piston pump comprises the pump housing, is contained in rotating shaft on the pump housing by bearing, it is characterized in that being equipped with in the rotating shaft cirque body, and the toroidal surface that cirque body contacts with plunger head is the waveform curved surface.
2. axial piston pump as claimed in claim 1 is characterized in that described waveform curved surface is the sinusoidal curve curved surface.
3. axial piston pump as claimed in claim 1 is characterized in that the curve and surface that described waveform curved surface replaces for the upper semi-circle lower semi-circle.
4. as claim 1 or 2 or 3 described axial piston pumps, it is characterized in that described waveform curved surface has 3-6 crest.
5. as claim 1 or 2 or 3 described axial piston pumps, the quantity that it is characterized in that plunger is 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920101558U CN201386633Y (en) | 2009-02-16 | 2009-02-16 | Axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920101558U CN201386633Y (en) | 2009-02-16 | 2009-02-16 | Axial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386633Y true CN201386633Y (en) | 2010-01-20 |
Family
ID=41579167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920101558U Expired - Fee Related CN201386633Y (en) | 2009-02-16 | 2009-02-16 | Axial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386633Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041595A (en) * | 2015-08-06 | 2015-11-11 | 珠海市世马科技有限公司 | Four-plunger high-pressure oil-free water pump with variables of rotating surface |
| CN109139430A (en) * | 2017-10-20 | 2019-01-04 | 边锋机械（集团）有限公司 | Electric diaphragm pump |
| CN110219791A (en) * | 2019-04-10 | 2019-09-10 | 烟台金正环保科技有限公司 | One kind can manual rocker Multi-cylinder plunger pump |
| CN110255730A (en) * | 2019-04-10 | 2019-09-20 | 烟台金正环保科技有限公司 | A kind of DTRO water-purifying process that individual soldier open air uses |
-
2009
- 2009-02-16 CN CN200920101558U patent/CN201386633Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041595A (en) * | 2015-08-06 | 2015-11-11 | 珠海市世马科技有限公司 | Four-plunger high-pressure oil-free water pump with variables of rotating surface |
| CN109139430A (en) * | 2017-10-20 | 2019-01-04 | 边锋机械（集团）有限公司 | Electric diaphragm pump |
| CN110219791A (en) * | 2019-04-10 | 2019-09-10 | 烟台金正环保科技有限公司 | One kind can manual rocker Multi-cylinder plunger pump |
| CN110255730A (en) * | 2019-04-10 | 2019-09-20 | 烟台金正环保科技有限公司 | A kind of DTRO water-purifying process that individual soldier open air uses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20110216 |