CN2527744Y - Plunger-piston shoes assembly - Google Patents
Plunger-piston shoes assembly Download PDFInfo
- Publication number
- CN2527744Y CN2527744Y CN 01273468 CN01273468U CN2527744Y CN 2527744 Y CN2527744 Y CN 2527744Y CN 01273468 CN01273468 CN 01273468 CN 01273468 U CN01273468 U CN 01273468U CN 2527744 Y CN2527744 Y CN 2527744Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- bulb
- slippery boots
- piston shoes
- hemisphere
- 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 Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Disclosed is a plunger-slide shoe component which is a part of a hydraulic pump and is particularly applicable for an axial plunger type hydraulic pump. The utility model is used for improving the pollution and abrasion prevention capacity and the service life of the plunger-slide shoe component in the hydraulic pump. The component consists of a plunger bulb and a skid shoe containing the bulb; wherein the bulb is compound, one part is a hemispheroid connected together with the plunger and the other part is a hemi-bulb bonded with the hemispheroid; the plunger and the hemispheroid are made from corrosion resistant alloy while the semi-bulb is made from polymer composite or engineering ceramics; a drag ring is bonded on the bottom of the skid shoe, wherein the skid shoe is made from another corrosion resistant material different from the plunger material and the drag ring is also made from the polymer composite or the engineering ceramics.
Description
Technical field
The utility model is the constituent elements of oil hydraulic pump, is particularly useful for the axial plunger type hydraulic pump.
Background technique
The axial plunger type hydraulic pump have compact structure, working pressure height, volume little, in light weight, realize multiple advantages such as variable being widely used among all kinds of hydraulic power systems easily.But such oil hydraulic pump is very responsive to the pollution of fluid, filtration requires very high to fluid, use and the maintenance requirement strictness, in case there is solid pollution impurity to enter its inside, will cause its main friction pairs, as the fretting wear aggravation of cylinder hole/trunk piston set, swash plate/piston shoes pair and thrust plate/cylinder body end face pair etc., shorten its working life greatly.Especially plunger-slippery boots assembly, it not only will form two pairs of main friction pairs with the cylinder hole and the swash plate of outside, himself has also comprised the bulb/ball-and-socket friction pair that must rotate flexibly, to such pump performance with play crucial effects working life.Plunger-slippery boots assembly structure of using in the existing axial plunger type hydraulic pump is single, as typical C Y pump and axis profile shaft to (" hydraulic element " such as plunger pumps, He Cunxing, China Machine Press, 1984), plunger-slippery boots assembly is by plunger and the bulb of one and the piston shoes that contain bulb are formed with it, bulb is the integral body that homogenous material constitutes, the integral body that piston shoes also constitute for homogenous material, the poor ability of antipollution wearing and tearing more can not be used for seawater, fresh water or other low viscosity media of poor lubricity.
Summary of the invention
The utility model provides a kind of plunger-slippery boots assembly of new structure, bulb is the composite head that different materials constitutes, piston shoes also can comprise two-part of different materials, to improve the antipollution wearing and tearing ability and the working life of plunger-slippery boots assembly in the axial plunger type hydraulic pump, make the axial plunger type hydraulic pump can be used in the hydraulic medium of high pressure sea water, fresh water or other low viscosity, poor lubricity.
Plunger-slippery boots assembly of the present utility model, by plunger and with it the bulb of one and the piston shoes that contain bulb forms, described bulb is a composite head, its part is the hemisphere that is connected as a single entity with plunger, another part is the hemispherical head bonding with a preceding part.
Described plunger-slippery boots assembly, it is further characterized in that described hemisphere front end has short cylinder, described hemispherical head has center cylindrical hole, is inserted in short cylinder and bonding with hemisphere.
Described plunger-slippery boots assembly, plunger and hemisphere can use corrosion resistant alloy material, and hemispherical head can be used polymer composite or engineering ceramic material.
Described plunger-slippery boots assembly, it is characterised in that further the piston shoes bottom has cylinder shape groove, the friction ring mosaic bonding of center band circular hole is in cylinder shape groove.
Described plunger-slippery boots assembly, piston shoes can use and the different types of corrosion resistant alloy material of plunger, and friction ring can adopt polymer composite or engineering ceramic material.
Plunger of the present utility model-slippery boots assembly uses new engineering material such as corrosion resistant alloy, engineering ceramics and polymer composite to be combined into friction pair, have the intensity height, wear-resisting, the antipollution polishing machine is good, long service life, and can use advantages such as seawater, fresh water or other low viscosity medium lubricate, can improve contamination resistance, working life and the application area of existing axial plunger type hydraulic pump greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and wherein 1 is plunger, and 2 is the hemisphere that is connected as a single entity with plunger, and 3 is hemispherical head, and 4 is piston shoes, and 5 is friction ring.
Embodiment
The utility model plunger-slippery boots assembly is used for sea water pump, and plunger and hemisphere use monel metal, and hemispherical head adopts 30% carbon fiber reinforced polyether-ether-ketone (PEEK), and piston shoes are titanium alloy, friction ring Z
rO
2Pottery.
When the utility model was used for oil pressure pump, plunger and hemisphere can adopt 65Si
2Mn, hemispherical head adopts Z
rO
2Pottery, piston shoes are aluminum bronze QA19-4, friction ring Z
rO
2Pottery.
After adopting plunger-slippery boots assembly of the present utility model, the life-span of existing plunger pump will prolong about three times.
Claims (6)
1. plunger-slippery boots assembly, by plunger and with it the bulb of one and the piston shoes that contain bulb forms, it is characterized in that described bulb is a composite head, its part is the hemisphere that is connected as a single entity with plunger, another part is the hemispherical head bonding with a preceding part.
2. the described plunger-slippery boots assembly of claim 1 is characterized in that described hemisphere front end has short cylinder, and described hemispherical head has center cylindrical hole, is inserted in short cylinder and bonding with hemisphere.
3. claim 1 or 2 described plunger-slippery boots assemblies is characterized in that plunger and hemisphere use corrosion resistant alloy material, and hemispherical head is used polymer composite or engineering ceramic material.
4. claim 1 or 2 described plunger-slippery boots assemblies is characterized in that the piston shoes bottom has cylinder shape groove, and the friction ring mosaic bonding of center band circular hole is in cylinder shape groove.
5. the described plunger-slippery boots assembly of claim 3 is characterized in that the piston shoes bottom has cylinder shape groove, and the friction ring mosaic bonding of center band circular hole is in cylinder shape groove.
6. the described plunger-slippery boots assembly of claim 5 is characterized in that piston shoes use and the different types of corrosion resistant alloy material of plunger, and friction ring adopts polymer composite or engineering ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273468 CN2527744Y (en) | 2001-12-20 | 2001-12-20 | Plunger-piston shoes assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273468 CN2527744Y (en) | 2001-12-20 | 2001-12-20 | Plunger-piston shoes assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2527744Y true CN2527744Y (en) | 2002-12-25 |
Family
ID=33678406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01273468 Expired - Fee Related CN2527744Y (en) | 2001-12-20 | 2001-12-20 | Plunger-piston shoes assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2527744Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062151A (en) * | 2012-12-06 | 2013-04-24 | 中国海洋石油总公司 | Static pressure balancing anti-friction sliding support cylinder |
| CN104481865A (en) * | 2014-09-28 | 2015-04-01 | 宁波广天赛克思液压有限公司 | Plunger piston shoe structure used for swash plate type axial plunger pump or motor |
| CN109253078A (en) * | 2018-11-27 | 2019-01-22 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of piston shoes structure and its processing technology |
| CN110725783A (en) * | 2019-11-06 | 2020-01-24 | 四川航天烽火伺服控制技术有限公司 | Plunger pump and plunger piston shoe assembly thereof |
-
2001
- 2001-12-20 CN CN 01273468 patent/CN2527744Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062151A (en) * | 2012-12-06 | 2013-04-24 | 中国海洋石油总公司 | Static pressure balancing anti-friction sliding support cylinder |
| CN103062151B (en) * | 2012-12-06 | 2016-02-03 | 中国海洋石油总公司 | Static balance antifriction slippage support cylinder |
| CN104481865A (en) * | 2014-09-28 | 2015-04-01 | 宁波广天赛克思液压有限公司 | Plunger piston shoe structure used for swash plate type axial plunger pump or motor |
| CN109253078A (en) * | 2018-11-27 | 2019-01-22 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of piston shoes structure and its processing technology |
| CN110725783A (en) * | 2019-11-06 | 2020-01-24 | 四川航天烽火伺服控制技术有限公司 | Plunger pump and plunger piston shoe assembly thereof |
| CN110725783B (en) * | 2019-11-06 | 2022-04-12 | 四川航天烽火伺服控制技术有限公司 | Plunger pump and plunger piston shoe assembly thereof |
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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 |