CN201137555Y - High pressure high displacement inclined shaft type axial plunger pump - Google Patents
High pressure high displacement inclined shaft type axial plunger pump Download PDFInfo
- Publication number
- CN201137555Y CN201137555Y CNU2007201383444U CN200720138344U CN201137555Y CN 201137555 Y CN201137555 Y CN 201137555Y CN U2007201383444 U CNU2007201383444 U CN U2007201383444U CN 200720138344 U CN200720138344 U CN 200720138344U CN 201137555 Y CN201137555 Y CN 201137555Y
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- CN
- China
- Prior art keywords
- plunger
- cylinder body
- connecting rod
- main shaft
- 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 provides a high pressure large discharge capacity inclined axis axial plunger pump, comprising a main shaft, a shell, two coupled dual-angle contact ball bearings of large cone angles, a press plate, an oil port, a back pump, a plunger couple, a core shaft, a cylinder, a distribution wheel and a back pump cover, which is characterized in that the main shaft is provided with the coupled dual-angle contact ball bearings of large cone angles, the cylinder adopts a dual-metal structure, the plunger and the connecting rod are produced into a plunger couple via the rolling shaping technique, and the distribution wheel is designed as a sphere distribution structure. The utility model has simple structure, large discharge capacity, high rated pressure and long service life.
Description
Technical field
The utility model belongs to axial piston pump, especially a kind of clino-axis type axial pump of high-pressure large-displacement.
Background technique
Existing bent axis type axial piston pump is made up of main shaft, the preceding pump housing, housing, cylinder body, trunk piston set, mandrel, thrust plate, the back pump housing, oil inlet and outlet etc., what install on its main shaft is single-row radial ball bearing, duplex needle bearing and roller bearing, complex structure, bearing capacity is poor; The cylinder body material is a Cuprum alloy, and cost height and intensity are low, and plunger is by the straight pin location with combining of connecting rod, easily breaks down; Thrust plate is planar design, the self-alignment poor performance.Thereby existing inclined plunger pump structure carry is comparatively complicated, and pressure is low, and discharge capacity is little, and working life is short, and cost is higher.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of existing bent axis type axial piston pump, provides that a kind of structure is simple, discharge capacity to 1000ml/r, rated pressure reaches 32MPa, and big discharge capacity, the plunger pump that working life is long.
The purpose of this utility model is achieved in that
The high-pressure large-displacement angle type axial piston pump comprises paired duplex angular contact ball bearing 3, pressing plate 4, oil inlet and outlet 5, the back pump housing 6, trunk piston set 7, mandrel 8, cylinder body 9, thrust plate 10, the rear pump cover 11 of main shaft 1, housing 2, big cone angle; It is characterized in that: the paired duplex angular contact ball bearing that big cone angle is housed on described main shaft; Described cylinder body has adopted bimetal structure, trunk piston set that plunger and connecting rod have been used the rolling forming fabrication techniques, and the surface of contact of thrust plate and cylinder body is designed to sphere 101.
Described trunk piston set 7 is made up of connecting rod 701 and plunger 702, and described connecting rod two ends have the ball strand, and an end adopts the roll extrusion technology that the connecting rod mode that no axial float is also swung flexibly in plunger hole is linked to each other with plunger.
The purpose of this utility model advantage and good effect are:
1, the paired duplex angular contact ball bearing of big cone angle has been installed on main shaft, thereby has been improved the tolerance limit rotating speed of axial pump, improved the bearing capacity and the life-span of pump, and made the processing advantages of simple of transmission shaft and bearing support;
2, cylinder body has adopted bimetal structure, has improved the intensity of cylinder body when guaranteeing best friction pair again;
3, plunger, connecting rod with the rolling forming fabrication techniques trunk piston set, guaranteed that plunger does not only have axial float but also connecting rod is swung freely with combining of connecting rod in plunger hole;
4, thrust plate is designed to the sphere flow, has guaranteed that cylinder body contacts with the good of thrust plate, and sealability improves, and still makes to have good lubricating between the flow face under high-speed case, has improved the rotating speed of pump.
The utility model is simple in structure, has simplified processing technology, has reduced cost, is the update product of existing bent axis type axial piston pump.
Description of drawings
Fig. 1 is an agent structure sectional drawing of the present utility model;
Fig. 2 is the trunk piston set structural representation;
Fig. 3 is the housing structure diagrammatic sketch;
Fig. 4 is the port plate structure diagrammatic sketch.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Shown in Figure 1, be agent structure sectional drawing of the present utility model; The utility model high-pressure large-displacement plunger pump mainly is made up of the paired duplex angular contact ball bearing 3 of main shaft 1, housing 2, big cone angle, pressing plate 4, oil inlet and outlet 5, the back pump housing 6, trunk piston set 7, mandrel 8, cylinder body 9, thrust plate 10, rear pump cover 11 etc.The paired duplex angular contact ball bearing of big cone angle has been installed on main shaft.
Shown in Figure 2, be the trunk piston set structural representation; Trunk piston set 7 is made up of connecting rod 701 and plunger 702.The connecting rod two ends have the ball strand, and an end links to each other with plunger, adopt the roll extrusion technology to make connecting rod not have axial float in plunger hole, can swing flexibly again.
Shown in Figure 3, be the housing structure diagrammatic sketch; Cylinder body 9 is made up of body 901 and lining 902.Body is a carbon steel, in the rubbing surface top pouring of body Cuprum alloy, when guaranteeing best friction pair, improved the intensity of cylinder body again.
Shown in Figure 4, be the port plate structure diagrammatic sketch; The surface of contact of thrust plate 10 and cylinder body is designed to the protruding sphere 101 of thrust plate, and cylinder body concave spherical surface 903, has guaranteed that cylinder body contacts with the good of thrust plate, has improved the self-defence of cylinder body.Under the situation of running up, still make to have good lubricating between the flow face, improved the rotating speed of pump.
Working principle of the present utility model is:
On the main shaft of dribbling nest dish, seven trunk piston set are housed in housing, trunk piston set is installed in respectively in the cylindrical hole of seven five equilibriums on the cylinder body.Housing is supporting main shaft by paired duplex angular contact ball bearing.When main shaft when mechanical forced is rotated, trunk piston set drives the cylinder body rotation, this moment, cylinder body slided on fixed spherical valve plate.When cylinder body axis and main-shaft axis at an angle the time, trunk piston set is reciprocating in cylinder bore with the rotation of cylinder body, and when plunger outward was moved, the cylinder bore internal volume increased, and sucked low pressure oil by thrust plate.When plunger inwardly moved, the cylinder bore internal volume reduced, by thrust plate output high pressure oil.In one week of main axis rotation, seven each to-and-fro motion of trunk piston set once.Change the pivot angle of cylinder body, just can change the output flow of oil pump.
Claims (3)
1, a kind of high-pressure large-displacement angle type axial piston pump comprises paired duplex angular contact ball bearing (3), pressing plate (4), oil inlet and outlet (5), the back pump housing (6), trunk piston set (7), mandrel (8), cylinder body (9), thrust plate (10), the rear pump cover (11) of main shaft (1), housing (2), big cone angle; It is characterized in that: the paired duplex angular contact ball bearing of big cone angle is housed on described main shaft, and described cylinder body adopts bimetal structure, trunk piston set that plunger and connecting rod have been used the rolling forming fabrication techniques, and the surface of contact of thrust plate and cylinder body is designed to sphere.
2, high-pressure large-displacement angle type axial piston pump according to claim 1, it is characterized in that: described trunk piston set (7) is made up of connecting rod (701) and plunger (702), the connecting rod two ends have the ball strand, and an end adopts the roll extrusion technology that the connecting rod mode that no axial float is also swung flexibly in plunger hole is linked to each other with plunger.
3, high-pressure large-displacement angle type axial piston pump according to claim 1, it is characterized in that: the bimetal structure of described cylinder body, cylinder body (9) is made up of body (901) and lining (902), and body is a carbon steel, in the rubbing surface top pouring of body Cuprum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201383444U CN201137555Y (en) | 2007-12-21 | 2007-12-21 | High pressure high displacement inclined shaft type axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201383444U CN201137555Y (en) | 2007-12-21 | 2007-12-21 | High pressure high displacement inclined shaft type axial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137555Y true CN201137555Y (en) | 2008-10-22 |
Family
ID=40038242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201383444U Expired - Lifetime CN201137555Y (en) | 2007-12-21 | 2007-12-21 | High pressure high displacement inclined shaft type axial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137555Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832261A (en) * | 2010-03-31 | 2010-09-15 | 北京理工大学 | Axial plunger pump cylinder body |
| CN106545492A (en) * | 2015-09-22 | 2017-03-29 | 无锡市德美嘉机械科技有限公司 | A kind of angle type axial piston pump or motor main shaft |
| CN110067717A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of synchronous self compensation distribution construction and swash plate plunger pump or motor comprising the structure |
| CN111102185A (en) * | 2019-11-26 | 2020-05-05 | 中船重工重庆液压机电有限公司 | Bimetallic cylinder body, friction pair and processing method for axial variable plunger pump |
| CN112412723A (en) * | 2020-11-18 | 2021-02-26 | 武科宜创(无锡)流体装备有限公司 | Floating composite axial plunger pump valve plate |
-
2007
- 2007-12-21 CN CNU2007201383444U patent/CN201137555Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832261A (en) * | 2010-03-31 | 2010-09-15 | 北京理工大学 | Axial plunger pump cylinder body |
| CN106545492A (en) * | 2015-09-22 | 2017-03-29 | 无锡市德美嘉机械科技有限公司 | A kind of angle type axial piston pump or motor main shaft |
| CN110067717A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of synchronous self compensation distribution construction and swash plate plunger pump or motor comprising the structure |
| CN111102185A (en) * | 2019-11-26 | 2020-05-05 | 中船重工重庆液压机电有限公司 | Bimetallic cylinder body, friction pair and processing method for axial variable plunger pump |
| CN112412723A (en) * | 2020-11-18 | 2021-02-26 | 武科宜创(无锡)流体装备有限公司 | Floating composite axial plunger pump valve plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIZHONG COAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: TAIYUAN MINGING MACHINERY HYDRAULIC + LUBRICATION EQUIPMENT CO., LTD. Effective date: 20140324 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 030009 TAIYUAN, SHAANXI PROVINCE TO: 030032 TAIYUAN, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140324 Address after: 030032 A District, 25 electronic street, Taiyuan economic and Technological Development Zone, Shanxi, China Patentee after: Taizhong Coal Mining Machinery Co., Ltd. Address before: 030009 No. 75 Jiefang North Road, Shanxi, Taiyuan Patentee before: Taiyuan Minging Machinery Hydraulic & Lubrication Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |
|
| CX01 | Expiry of patent term |