CN203796552U - Swash-plate-type plunger pump with antifriction property - Google Patents
Swash-plate-type plunger pump with antifriction property Download PDFInfo
- Publication number
- CN203796552U CN203796552U CN201420068934.4U CN201420068934U CN203796552U CN 203796552 U CN203796552 U CN 203796552U CN 201420068934 U CN201420068934 U CN 201420068934U CN 203796552 U CN203796552 U CN 203796552U
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- China
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- oil distribution
- cylinder body
- antifriction
- distribution casing
- plunger pump
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Abstract
A swash-plate-type plunger pump with the antifriction property comprises a cylinder body and an oil distribution plate, wherein the oil distribution plate is arranged at the bottom of the cylinder body, a friction pair is formed by the cylinder body and the oil distribution disk, and an antifriction layer is arranged on the contact portion between the bottom of the cylinder body and the oil distribution plate. According to the swash-plate-type plunger pump with the antifriction property, because the antifriction layer is arranged on the contact portion between the bottom of the cylinder body and the oil distribution plate, severe abrasion caused by mutual friction due to direct contact between the bottom of the cylinder body and the oil distribution plate can be effectively avoided, so that the service life of the cylinder body and the service life of the oil distribution plate are prolonged, and thus the service life of the whole plunger pump is prolonged.
Description
Technical field
The utility model relates to hydraulic power unit, relates in particular to a kind of swash plate plunger pump with antifriction characteristic.
Background technique
Swash plate plunger pump compact structure, volume is little, lightweight, and there is higher volumetric efficiency and total efficiency, higher working pressure can be provided, and is in modern hydraulic transmission, to use one of wider Hydraulic power units, in engineering machinery and farm machinery, is widely used.The housing assembly of swash plate plunger pump comprises cylinder body and oil distribution casing, is one of swash plate plunger pump critical elements, and it can play suction fluid in swash plate plunger pump, and the fluid of suction is become to the effect that high pressure oil is discharged.In working procedure, cylinder body and oil distribution casing are the friction pairs of a pair of high-speed motion, and oil distribution casing maintains static, cylinder body High Rotation Speed, the relative velocity that both maintenances are higher.Because both speed of related movements are higher, in existing product, cylinder body and oil distribution casing are easy to occur fatigue wear, cause oil distribution casing and cylinder body contacting point badly damaged, thereby affect the working life of cylinder body and oil distribution casing, and then affect the working life of whole plunger pump.
Model utility content
The problem that the utility model solves is to provide a kind of swash plate plunger pump with antifriction characteristic.
For addressing the above problem, the utility model has disclosed a kind of swash plate plunger pump with antifriction characteristic, comprise cylinder body and oil distribution casing, described oil distribution casing is arranged at described cylinder base, described cylinder body and oil distribution casing form friction pair, and described cylinder base and described oil distribution casing touching position are provided with antifriction layer.
Preferably, described antifriction layer is identical with the radian of described cylinder base, and described antifriction layer thickness is 0.8mm to 1.2mm.
Preferably, described antifriction layer thickness is 1mm.
Preferably, described cylinder surface is also provided with nitrocarburizing layer.
Preferably, described oil distribution casing surface is provided with nitride layer.
Preferably, on described cylinder body, be provided with plunger hole, the inwall of described plunger hole is provided with antifriction layer.
Compared with prior art, the utlity model has following advantage: the swash plate plunger pump of antifriction characteristic that what the utility model disclosed have, comprise cylinder body and oil distribution casing, described oil distribution casing is arranged at described cylinder base, described cylinder body and oil distribution casing form friction pair, and described cylinder base and described oil distribution casing touching position are provided with antifriction layer.The swash plate plunger pump of antifriction characteristic that what the utility model disclosed have, by being provided with antifriction layer in described cylinder base and described oil distribution casing touching position, can effectively avoid cylinder base directly to contact with oil distribution casing the heavy wear that phase mutual friction causes, thereby improve the working life of cylinder body and oil distribution casing, and then the working life of improving whole plunger pump.
Brief description of the drawings
Fig. 1 is the plan view of cylinder body in the utility model preferred embodiment;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is the plan view of oil distribution casing in the utility model preferred embodiment;
Fig. 4 be in Fig. 3 B-B to sectional view;
Fig. 5 is structural representation when cylinder body matches with oil distribution casing in the utility model preferred embodiment.
Embodiment
Existing swash plate plunger pump, comprises cylinder body and oil distribution casing, and in working procedure, cylinder body and oil distribution casing are the friction pairs of a pair of high-speed motion, and oil distribution casing maintains static, cylinder body High Rotation Speed, the relative velocity that both maintenances are higher.Because both speed of related movements are higher, in existing product, cylinder body and oil distribution casing are easy to occur fatigue wear, cause oil distribution casing and cylinder body contacting point badly damaged, thereby affect the working life of cylinder body and oil distribution casing, and then affect the working life of whole plunger pump.
In view of the above-mentioned problems in the prior art, the utility model has disclosed a kind of swash plate plunger pump with antifriction characteristic, comprise cylinder body and oil distribution casing, described oil distribution casing is arranged at described cylinder base, described cylinder body and oil distribution casing form friction pair, and described cylinder base and described oil distribution casing touching position are provided with antifriction layer.
Preferably, described antifriction layer is identical with the radian of described cylinder base, and described antifriction layer thickness is 0.8mm to 1.2mm.
Preferably, described antifriction layer thickness is 1mm.
Preferably, described cylinder surface is also provided with nitrocarburizing layer.
Preferably, described oil distribution casing surface is provided with nitride layer.
Preferably, on described cylinder body, be provided with plunger hole, the inwall of described plunger hole is provided with antifriction layer.
The swash plate plunger pump of antifriction characteristic that what the utility model disclosed have, by being provided with antifriction layer in described cylinder base and described oil distribution casing touching position, can effectively avoid cylinder base directly to contact with oil distribution casing the heavy wear that phase mutual friction causes, thereby improve the working life of cylinder body and oil distribution casing, and then the working life of improving whole plunger pump.
Below in conjunction with accompanying drawing, the technological scheme in the utility model embodiment is described in detail.
As shown in Figures 1 to 5, the utility model has disclosed a kind of swash plate plunger pump with antifriction characteristic, comprises cylinder body 1 and oil distribution casing 2, and oil distribution casing 2 is arranged at cylinder body 1 bottom.In the course of the work, cylinder body 1 and oil distribution casing 2 form friction pair, and oil distribution casing 2 maintains static, and cylinder body 1, around self axis High Rotation Speed, keeps high speed relative movement between cylinder body 1 and oil distribution casing 2.As everyone knows, in high speed relative movement, between cylinder body 1 and oil distribution casing 2, produce friction, make cylinder body 1 and oil distribution casing 2 that fatigue wear and fretting wear easily occur, thereby affect the working life of cylinder body 1 and oil distribution casing 2.In the preferred embodiment of the present invention, in order to reduce fatigue wear and the fretting wear between cylinder body 1 and oil distribution casing 2, cylinder body 1 bottom and oil distribution casing 2 touching positions are provided with antifriction layer 3.By being provided with antifriction layer 3 in cylinder body 1 bottom and oil distribution casing 2 touching positions, can effectively avoid cylinder body 1 bottom directly to contact with oil distribution casing 2 heavy wear that phase mutual friction causes, thereby improve the working life of cylinder body 1 and oil distribution casing 2, and then the working life of improving whole plunger pump.Further, antifriction layer 3 adopts copper layer, and it is corrosion-resistant, wear-resistant that copper has, and has good mechanical property and technology capability.Certainly, also can replace copper layer with tin layer, lead layer herein.
In the utility model preferred embodiment, antifriction layer 3 is identical with the radian of cylinder body 1 bottom, and antifriction layer 3 thickness are 0.8mm to 1.2mm.
Further, antifriction layer 3 thickness are 1mm.
In the utility model preferred embodiment, cylinder body 1 surface is also provided with nitrocarburizing layer.Nitrocarburizing layer is processed formation by carry out nitrocarburizing in cylinder body 1 surface, and nitrocarburizing is in fact as main low-temperature nitrocarburizing, when nitrogen-atoms infiltrates taking nitriding, also have a small amount of carbon atom to infiltrate, nitrided layer hardness is low compared with nitrogenize, and fragility is less, therefore be called nitrocarburizing.Nitrocarburizing can improve fatigue strength, the wear resistance of workpiece significantly.Under DRY SLIDING, also there is the performance such as scrape resistence and bite-resistant, and there is certain toughness, be not easy to peel off.Cylinder body 1 is carried out to nitrocarburizing processing, can improve hardness, wear resistance and the working life of cylinder body 1.
Further, oil distribution casing 2 surfaces are provided with nitride layer, thereby improve hardness and the wear resistance of oil distribution casing 2, the working life of improving oil distribution casing 2.
In the utility model preferred embodiment, on cylinder body 1, be provided with plunger hole 4, when work, plunger 7 moves reciprocatingly in plunger hole 4, and to-and-fro motion makes cylinder body 1 that fatigue wear and fretting wear easily occur.Therefore,, in the swash plate plunger pump with antifriction characteristic disclosing at the utility model, the inwall of plunger hole 4 is provided with antifriction layer 5.By being provided with antifriction layer 5 at the inwall of plunger hole 4, can effectively reduce plunger hole 4 degrees of wear, thereby improve the working life of cylinder body 1.Particularly, antifriction layer 5 can be copper layer, tin layer or lead layer.
The swash plate plunger pump of antifriction characteristic that what the utility model disclosed have, comprises cylinder body 1 and oil distribution casing 2, and oil distribution casing 2 is arranged at cylinder body 1 bottom, and cylinder body 1 and oil distribution casing 2 form friction pair, and cylinder body 1 bottom and oil distribution casing 2 touching positions are provided with antifriction layer 3.The swash plate plunger pump of antifriction characteristic that what the utility model disclosed have, by being provided with antifriction layer 3 in cylinder body 1 bottom and oil distribution casing 2 touching positions, can effectively avoid cylinder body 1 bottom directly to contact with oil distribution casing 2 heavy wear that phase mutual friction causes, thereby improve the working life of cylinder body 1 and oil distribution casing 2, and then the working life of improving whole plunger pump.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to these embodiments' multiple amendment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. one kind has the swash plate plunger pump of antifriction characteristic, comprise cylinder body and oil distribution casing, described oil distribution casing is arranged at described cylinder base, and described cylinder body and oil distribution casing form friction pair, it is characterized in that: described cylinder base and described oil distribution casing touching position are provided with antifriction layer.
2. the swash plate plunger pump with antifriction characteristic according to claim 1, is characterized in that: described antifriction layer is identical with the radian of described cylinder base, described antifriction layer thickness is 0.8mm to 1.2mm.
3. the swash plate plunger pump with antifriction characteristic according to claim 2, is characterized in that: described antifriction layer thickness is 1mm.
4. the swash plate plunger pump with antifriction characteristic according to claim 1, is characterized in that: described cylinder surface is also provided with nitrocarburizing layer.
5. the swash plate plunger pump with antifriction characteristic according to claim 1, is characterized in that: described oil distribution casing surface is provided with nitride layer.
6. the swash plate plunger pump with antifriction characteristic according to claim 1, is characterized in that: on described cylinder body, be provided with plunger hole, the inwall of described plunger hole is provided with antifriction layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068934.4U CN203796552U (en) | 2014-02-18 | 2014-02-18 | Swash-plate-type plunger pump with antifriction property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068934.4U CN203796552U (en) | 2014-02-18 | 2014-02-18 | Swash-plate-type plunger pump with antifriction property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796552U true CN203796552U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068934.4U Expired - Fee Related CN203796552U (en) | 2014-02-18 | 2014-02-18 | Swash-plate-type plunger pump with antifriction property |
Country Status (1)
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| CN (1) | CN203796552U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555750A (en) * | 2015-09-30 | 2017-04-05 | 无锡市德美嘉机械科技有限公司 | A kind of hydraulic planger pump cylinder body |
| CN107035681A (en) * | 2017-06-22 | 2017-08-11 | 杭州力龙液压有限公司 | Plunger, plunger pump and hydraulic means |
| CN108757428A (en) * | 2018-05-31 | 2018-11-06 | 龙工（上海）精工液压有限公司 | Swash plate plunger pump friction auxiliary structure |
| CN108799096A (en) * | 2018-06-13 | 2018-11-13 | 兰州理工大学 | A kind of surface anti-drag type hydraulic planger pump/motor cylinder |
| CN113389718A (en) * | 2021-07-27 | 2021-09-14 | 东莞市三惠机械有限公司 | Hydraulic pump oil distribution shell assembly with gasket |
-
2014
- 2014-02-18 CN CN201420068934.4U patent/CN203796552U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555750A (en) * | 2015-09-30 | 2017-04-05 | 无锡市德美嘉机械科技有限公司 | A kind of hydraulic planger pump cylinder body |
| CN107035681A (en) * | 2017-06-22 | 2017-08-11 | 杭州力龙液压有限公司 | Plunger, plunger pump and hydraulic means |
| CN108757428A (en) * | 2018-05-31 | 2018-11-06 | 龙工（上海）精工液压有限公司 | Swash plate plunger pump friction auxiliary structure |
| CN108799096A (en) * | 2018-06-13 | 2018-11-13 | 兰州理工大学 | A kind of surface anti-drag type hydraulic planger pump/motor cylinder |
| CN113389718A (en) * | 2021-07-27 | 2021-09-14 | 东莞市三惠机械有限公司 | Hydraulic pump oil distribution shell assembly with gasket |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200218 |