CN201531383U - Swash plate type axial piston pump - Google Patents
Swash plate type axial piston pump Download PDFInfo
- Publication number
- CN201531383U CN201531383U CN2009202350292U CN200920235029U CN201531383U CN 201531383 U CN201531383 U CN 201531383U CN 2009202350292 U CN2009202350292 U CN 2009202350292U CN 200920235029 U CN200920235029 U CN 200920235029U CN 201531383 U CN201531383 U CN 201531383U
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- CN
- China
- Prior art keywords
- swash plate
- pump
- piston pump
- cylinder body
- type axial
- 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 discloses a swash plate type axial piston pump. The piston pump comprises a spindle, a port plate, a swash plate, a cylinder body, a set plate, a pump casing, a spherical hinge, a rear cover, a plurality of plunger pistons arranged in the cylinder body, and a skid shoe positioned between the plunger pistons and the swash plate, wherein the port plate is mounted at a pump chamber opening of the pump casing. The piston pump is characterized in that a plurality of cylindrical coil springs are uniformly arranged on the spherical hinge in the circumferential direction, and has the advantages of low resource consumption, high operating efficiency and high quality stability.
Description
Technical field
The utility model relates to a kind of pluger type hydraulic pump, relates in particular to a kind of cam-type axial piston pump.
Background technique
Cam-type axial piston pump is when guaranteeing pump startup, the cylinder body oil distribution casing still has certain pre-pressing force, set up and put an axial centre spring, cylinder body is pressed on the oil distribution casing, existing axial centre spring is generally butterfly spring, because of butterfly spring has very wide scope nonlinear characteristics, the load deviation is difficult to guarantee, so be unfavorable for keeping impacting force in the scope of setting.On the other hand, existing ball pivot rotation motion be friction driving by butterfly spring and cylinder body by main shaft through the cylinder body transmission, this function mode wear rate height, and butterfly spring and cylinder body be easy to generate slip, causes workmanship stability to reduce.
The model utility content
The purpose of this utility model is at above-mentioned deficiency, and a kind of long service life, high working efficiency, mass stability height, cam-type axial piston pump that wasting of resources rate is low are provided.
The technical solution adopted in the utility model is: cam-type axial piston pump, comprise main shaft, thrust plate, swash plate, cylinder body, backhaul dish, pump case, ball pivot, bonnet, be arranged on several plungers and the piston shoes between plunger and swash plate in the cylinder body, described thrust plate is installed in the pump chamber mouth of pump case, evenly is furnished with a plurality of cylindrically coiled springs along the circumferencial direction of described ball pivot.
Further, ball pivot is provided with internal spline, and directly drives by main shaft.
Cam-type axial piston pump described in the utility model changes original butterfly spring into cylindrically coiled spring, and cylindrically coiled spring rigidity is little, and characteristic curve is linear, helps keeping impacting force in the scope of setting, and has guaranteed the working efficiency of plunger pump.
On the other hand, ball pivot has designed internal spline, the revolution of ball pivot is directly driven by main shaft, because ball pivot connects with the main shaft internal spline, this connecting mode is stressed evenly, and bearing load is big, guaranteed that ball pivot and cylinder body turn round synchronously, replaced friction driving main shaft and the cylinder body running of original structure, reduced the friction of ball pivot and backhaul dish and main shaft, eliminated the slip between butterfly spring and the cylinder body by butterfly spring and cylinder body.
The utility model has the advantages that: low in resources consumption, high working efficiency, mass stability height.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is done and to be described in further detail:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model ball pivot.
Fig. 3 is the longitudinal sectional view of Fig. 2.
Wherein: 1, main shaft, 2, thrust plate, 3, swash plate, 4, cylinder body, 5, the backhaul dish, 6, pump case, 7, ball pivot, 8, plunger, 9, piston shoes, 10, cylindrically coiled spring, 11, internal spline, 12, bonnet.
Embodiment
Shown in Fig. 1,2 and 3, cam-type axial piston pump, comprise main shaft 1, thrust plate 2, swash plate 3, cylinder body 4, backhaul dish 5, pump case 6, ball pivot 7, bonnet 12, be arranged on several plungers 8 and the piston shoes 9 between plunger 8 and swash plate 3 in the cylinder body 4, thrust plate 2 is installed in the pump chamber mouth of pump case 6, circumferencial direction along described ball pivot 7 evenly is furnished with a plurality of cylindrically coiled springs 10, the corresponding amplification of the size of ball pivot 7 is to adapt to the size of the net post helical spring 10 that is evenly arranged in the ball pivot, and ball pivot 7 is provided with internal spline 11, and directly drives by main shaft 1.
Claims (2)
1. cam-type axial piston pump, comprise main shaft, thrust plate, swash plate, cylinder body, backhaul dish, pump case, ball pivot, bonnet, be arranged on several plungers and the piston shoes between plunger and swash plate in the cylinder body, described thrust plate is installed in the pump chamber mouth of pump case, it is characterized in that evenly being furnished with a plurality of cylindrically coiled springs along the circumferencial direction of described ball pivot.
2. cam-type axial piston pump according to claim 1 is characterized in that described ball pivot is provided with internal spline, and directly drives by main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202350292U CN201531383U (en) | 2009-08-18 | 2009-08-18 | Swash plate type axial piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202350292U CN201531383U (en) | 2009-08-18 | 2009-08-18 | Swash plate type axial piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531383U true CN201531383U (en) | 2010-07-21 |
Family
ID=42526787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202350292U Expired - Lifetime CN201531383U (en) | 2009-08-18 | 2009-08-18 | Swash plate type axial piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531383U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506022A (en) * | 2011-12-20 | 2012-06-20 | 北京航科发动机控制系统科技有限公司 | Inclined plate type axial plunger pump with sliding shoe |
| CN103184990A (en) * | 2013-03-14 | 2013-07-03 | 北京工业大学 | Oblique plunger type pure water hydraulic swash plate pump |
| CN103277275A (en) * | 2013-05-29 | 2013-09-04 | 宁波恒力液压股份有限公司 | Electrically-controlled multifunctional combined proportional variable axial plunger pump |
| CN104500327A (en) * | 2014-11-26 | 2015-04-08 | 宁波中意液压马达有限公司 | Axial plunger motor |
| CN104989613A (en) * | 2015-08-11 | 2015-10-21 | 贵阳海之力液压有限公司 | Novel minitype swash plate type plunger pump and motor |
| CN106761941A (en) * | 2015-11-20 | 2017-05-31 | 熵零股份有限公司 | Plunger hydraulic mechanism |
| CN107246366A (en) * | 2017-06-09 | 2017-10-13 | 上海工程技术大学 | A kind of ball pivot with micro- hole spherical cambered surface and gerotor type spline pore structure |
| CN111022426A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Coaxial-driving high-speed high-pressure connecting rod plunger device with flexible support |
-
2009
- 2009-08-18 CN CN2009202350292U patent/CN201531383U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506022A (en) * | 2011-12-20 | 2012-06-20 | 北京航科发动机控制系统科技有限公司 | Inclined plate type axial plunger pump with sliding shoe |
| CN103184990A (en) * | 2013-03-14 | 2013-07-03 | 北京工业大学 | Oblique plunger type pure water hydraulic swash plate pump |
| CN103184990B (en) * | 2013-03-14 | 2015-04-29 | 北京工业大学 | Oblique plunger type pure water hydraulic swash plate pump |
| CN103277275A (en) * | 2013-05-29 | 2013-09-04 | 宁波恒力液压股份有限公司 | Electrically-controlled multifunctional combined proportional variable axial plunger pump |
| CN103277275B (en) * | 2013-05-29 | 2015-09-02 | 宁波恒力液压股份有限公司 | Electric controlled multi-functional compositely proportional axial variable displacement plunger pump |
| CN104500327A (en) * | 2014-11-26 | 2015-04-08 | 宁波中意液压马达有限公司 | Axial plunger motor |
| CN104989613A (en) * | 2015-08-11 | 2015-10-21 | 贵阳海之力液压有限公司 | Novel minitype swash plate type plunger pump and motor |
| CN106761941A (en) * | 2015-11-20 | 2017-05-31 | 熵零股份有限公司 | Plunger hydraulic mechanism |
| CN107246366A (en) * | 2017-06-09 | 2017-10-13 | 上海工程技术大学 | A kind of ball pivot with micro- hole spherical cambered surface and gerotor type spline pore structure |
| CN111022426A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Coaxial-driving high-speed high-pressure connecting rod plunger device with flexible support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |