CN2564774Y - Point contacting large flow axial plunger pump - Google Patents
Point contacting large flow axial plunger pump Download PDFInfo
- Publication number
- CN2564774Y CN2564774Y CN 02268827 CN02268827U CN2564774Y CN 2564774 Y CN2564774 Y CN 2564774Y CN 02268827 CN02268827 CN 02268827 CN 02268827 U CN02268827 U CN 02268827U CN 2564774 Y CN2564774 Y CN 2564774Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- housed
- swash plate
- bearing
- endoporus
- 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 a point-contact large-flow axial plunger pump, which solves the problems that the plunger pump is not basically taken as a low-pressure large-flow pump due to the great difficulties of enhancing rotating speed and enlarging displacement. The utility model is characterized in that an angular-contact bearing is arranged between an inclined disk seat and an inclined disk; oil suction hole is arranged on a plunger; an oil suction one-way valve is arranged in an inner hole of the plunger; the back part of the inner hole of the plunger is provided with a retracting spring. The utility model is suitable for making the low-pressure large-flow pump.
Description
Affiliated technical field
The utility model relates to a kind of oil pump, and particularly a kind of point contacts big flow axial piston pump.
Background technique
Present low pressure and mass flow pump mostly is gear pump and screw pump greatly, and there is the big problem of noise in gear pump, and screw pump exists cost height, problem that volumetric efficiency is low.Plunger pump is used as high-pressure service pump mostly, and adopts the disc type flow more, thereby improves rotating speed, strengthens discharge capacity and has big difficulty.Therefore, axial piston pump is not substantially as the low pressure and mass flow pump.
Summary of the invention
The purpose of this utility model provides a kind of employing flow-distributing valve form flow, is applicable to the inclined disc type some contact axial piston pump of low pressure and mass flow occasion.
The utility model is achieved in that a kind of point contacts big flow axial piston pump, it has cylinder body that one group of plunger is housed and the housing that tightens together with it, in the rolling bearing on being contained in cylinder body and housing transmission shaft is installed, the swash plate seat is housed on the transmission shaft, between swash plate seat and housing thrust-bearing is housed, it is characterized in that:
A, between swash plate seat and swash plate, be equipped with and both can have carried axial load and also can carry the radial thrust bearing of radial load, or entad be equipped with or the combination of selfaligning bearing and thrust-bearing;
B, oil-sucking hole is arranged all on each plunger, oil sucting one-way valve is contained in the endoporus of plunger, at plunger endoporus rear portion the retracting spring of roof pressure on cylinder body is housed.
The spool that is arranged in the oil sucting one-way valve of plunger endoporus is contained on the water conservancy diversion guide holder that is arranged in the plunger endoporus, and spring is housed between the two, on the water conservancy diversion guide holder pod apertures is arranged.
The utility model mainly contains following advantage: the one, owing between swash plate and swash plate seat, radial thrust bearing is housed or entad is equipped with or the combination of selfaligning bearing and thrust-bearing, thereby eliminated the sliding friction between swash plate and the swash plate seat, this has not only reduced component wear, improved mechanical efficiency, and can improve the rotating speed of transmission shaft, be beneficial to the raising pump delivery; The 2nd, owing to adopted the flow-distributing valve flow, eliminated sliding pair, improved parts life-span and mechanical efficiency, be beneficial to and improve transmission shaft rotating speed and pump delivery, and when the mutual conversion of oil suction and oil extraction, do not have the pocketed oil district, do not produce noise; The 3rd, flow-distributing valve of the present utility model is simple in structure, is easy to make, and is positioned at plunger inside, and volume is very little.Make the low pressure and mass flow pump owing to exist above advantage, the utility model to be applicable to.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is the utility model embodiment one a structural drawing;
Accompanying drawing 2 is structural drawing of the utility model embodiment two.
Embodiment
Embodiment one,
As can be seen from Figure 1, housing 1 is in the same place with cylinder body 2 usefulness bolton, and transmission shaft 3 is installed in the rolling bearing that is arranged on housing 1 and the cylinder body 2.Swash plate seat 4 is housed on the transmission shaft 3, between swash plate seat 4 and housing 1, thrust-bearing 7 is housed.Front end at swash plate seat 4 has swash plate 5, between swash plate seat 4 and the swash plate 5 tapered roller bearing 6 is housed, and can certainly use angular contact ball bearing, and they all are to carry axial load, also can carry radial load.One group of plunger 8 is housed on cylinder body 2, and each plunger 8 all is a sleeve shape, at its front end oil-sucking hole 9 is arranged.Water conservancy diversion guide holder 11 is tightly packed in the endoporus of plunger 8, and pod apertures 13 is arranged on the water conservancy diversion guide holder 11.Front end at water conservancy diversion guide holder 11 is an oil sucting one-way valve, and the rear portion of the spool 10 of one-way valve is installed in the endoporus of water conservancy diversion guide holder 11, and can along slip.The anterior conical surface roof pressure of spool 10 has spring 12 at spool 10 and 11 of water conservancy diversion guide holders on the inner conical surface of plunger 8.At the rear portion of plunger 8 retracting spring 14 is arranged, its rear end roof pressure is on cylinder body 2, and the front end roof pressure is on water conservancy diversion guide holder 11.Oil extraction one-way valve 15 and oil outlet 16 are arranged at the rear portion of cylinder body 2.The top of housing 1 is filler opening 17.
In the course of the work, during oil suction, plunger 8 stretches out, and the oil-sucking hole 9 of oil on plunger 8 backs down oil sucting one-way valve core 10 and enter plunger 8 endoporus, and the pod apertures on water conservancy diversion guide holder 11 13 flows to the endoporus rear portion again.During oil extraction, swash plate 5 is pressed into plunger 8, and retracting spring 14 is compressed, this moment oil sucting one-way valve close, the pressure oil in plunger 8 endoporus backs down oil extraction one-way valve 15, with oil outside oil outlet 16 excavationg pumps.
The utility model also can be used as oil motor and uses.
Embodiment two:
Present embodiment and embodiment's one difference is to be equipped with a dish thrust ball bearing 6a between swash plate seat 4 and swash plate 5, between the nose circle cylinder of swash plate seat 4 and swash plate 5 endoporus a roller bearing 6b who does not have inner ring and outer ring is housed.Remaining structure is identical, no longer repeats.
Claims (2)
1, a kind of point contacts big flow axial piston pump, it has cylinder body that one group of plunger is housed and the housing that tightens together with it, in the rolling bearing on being contained in cylinder body and housing transmission shaft is installed, and the swash plate seat is housed on the transmission shaft, between swash plate seat and housing thrust-bearing is housed, it is characterized in that:
A, between swash plate seat and swash plate, be equipped with and both can have carried axial load and also can carry the radial thrust bearing of radial load, or entad be equipped with or the combination of selfaligning bearing and thrust-bearing;
B, oil-sucking hole is arranged all on each plunger, oil sucting one-way valve is contained in the endoporus of plunger, at plunger endoporus rear portion the retracting spring of roof pressure on cylinder body is housed.
2, a kind of point according to claim 1 contacts big flow axial piston pump, the spool that is characterized in being arranged in the oil sucting one-way valve of plunger endoporus is contained on the water conservancy diversion guide holder that is arranged in the plunger endoporus, spring is housed between the two, on the water conservancy diversion guide holder pod apertures is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268827 CN2564774Y (en) | 2002-08-14 | 2002-08-14 | Point contacting large flow axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268827 CN2564774Y (en) | 2002-08-14 | 2002-08-14 | Point contacting large flow axial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564774Y true CN2564774Y (en) | 2003-08-06 |
Family
ID=33734186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02268827 Expired - Fee Related CN2564774Y (en) | 2002-08-14 | 2002-08-14 | Point contacting large flow axial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564774Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062037A (en) * | 2013-01-18 | 2013-04-24 | 安高成 | Axial plunger pump |
| CN105804961A (en) * | 2016-03-15 | 2016-07-27 | 北京星达科技发展有限公司 | Plunger pump transmission mechanism, high-pressure constant flow pump system and medium flow control method |
| CN109441750A (en) * | 2018-09-30 | 2019-03-08 | 江苏金陵智造研究院有限公司 | A kind of axial plunger pump |
-
2002
- 2002-08-14 CN CN 02268827 patent/CN2564774Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062037A (en) * | 2013-01-18 | 2013-04-24 | 安高成 | Axial plunger pump |
| CN105804961A (en) * | 2016-03-15 | 2016-07-27 | 北京星达科技发展有限公司 | Plunger pump transmission mechanism, high-pressure constant flow pump system and medium flow control method |
| CN109441750A (en) * | 2018-09-30 | 2019-03-08 | 江苏金陵智造研究院有限公司 | A kind of axial plunger pump |
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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 |