CN202073771U - Plunger connecting rod assembly - Google Patents
Plunger connecting rod assembly Download PDFInfo
- Publication number
- CN202073771U CN202073771U CN2011200608254U CN201120060825U CN202073771U CN 202073771 U CN202073771 U CN 202073771U CN 2011200608254 U CN2011200608254 U CN 2011200608254U CN 201120060825 U CN201120060825 U CN 201120060825U CN 202073771 U CN202073771 U CN 202073771U
- Authority
- CN
- China
- Prior art keywords
- ball
- plunger
- connecting rod
- ball pivot
- rod assembly
- 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 plunger connecting rod assembly which comprises a plunger (4), a ball head connecting rod (8), a ball hinged body (5), a ball hinged cover (7), a ball hinged press cover (6) and a lock nut (1), and is characterized in that the ball hinged body (5) is arranged in the plunger (4) and is fixed on the plunger (4) through the lock nut (1), the ball hinged body (5) and the ball hinged cover (7) form a ball socket; a ball head at one end of the ball head connecting rod (8) is contained in the ball socket so as to form ball hinged connection; and the ball hinged press cover is used for fixing and pressing. The plunger connecting rod assembly is applicable to a tilting tray connecting rod axial plunger pump which takes seawater, fresh water, high water base, mineral oil and the like as a working medium, and has simple process, reliable working and long service life.
Description
Technical field
The utility model belongs to the parts of plunger pump, is specifically related to a kind of plunger connecting rod assembly, is applicable to water pressure plunger pump and oil pressure plunger pump.
Background technique
The water hydraulic drive technology is as working medium with water, have do not burn, the loss of pollution-free, system compresses is little, response is fast, system's temperature rise is low, system's linear loss and advantage such as local losses is little, system maintenance convenient and maintenance cost is low, it is one of important development direction of current hydraulics, and wide application prospect is arranged.The water hydraulic pump is the crucial dynamical element in the water hydraulic system, is the heart of water hydraulic system, and its performance quality is directly determining the performance quality of whole water hydraulic system.In recent years, the hydraulicdriven high-pressure trend trend of positive displacement, especially the employing of axial water pressure plunger pump is increasingly extensive to make water pressure plunger pump.
The plunger connecting rod assembly is the critical component in the water pressure plunger pump.Prime mover drives the swash plate swing by main shaft, and drive plunger does reciprocating linear motion in the cylinder hole, realizes that thus the size of sealing plunger cavity volume is done cyclically-varying, constantly finishes suction and drainage procedure by flow-distribution mechanism again.In present most widely used swash plate class plunger pump, bulb and plunger are integral structure, and plunger directly is connected with swash plate by the bulb of its end (sees Li Zhuanyun, Wan Huixiong, He Xiaofeng, Nie Songlin: hydraulic element and system, second edition, Beijing, China Machine Press, 2005).The swash plate drive plunger is reciprocating in the cylinder hole, plunger lateral pressure angle is big, plunger is big to the radial pressure in cylinder hole, and the PV value of plunger/cylinder hole friction pair is big, and the corrosivity of water is strong in addition, poor lubricity, be easy to take place excessive wear between plunger and the cylinder hole or stick together inefficacy, this make plunger and cylinder hole this friction pair is had relatively high expectations selection and processing difficulties to material, the cost of production height is unfavorable for the manufacturing and the application of this class pump.
Summary of the invention
The utility model provides a kind of plunger connecting rod assembly, plunger and ball head connecting rod flexibly connect, the connecting rod two ends are universal spherical joint, belong to two power bar members, the angle of connecting rod and plunger, promptly the lateral pressure angle is less, so the suffered tendency power of plunger is less, the PV value that plunger and cylinder hole friction pair bear is very little, the possibility that has reduced that excessive wear takes place between plunger and the cylinder hole or sticked together inefficacy, the working life of having improved plunger/cylinder hole friction pair.
A kind of plunger connecting rod assembly of the present utility model, comprise plunger, ball head connecting rod, ball pivot body, ball pivot lid, ball pivot gland and locking nut, it is characterized in that: described ball pivot body is positioned at plunger, and be fixed on the plunger by described locking nut, this ball pivot body and described ball pivot lid form ball-and-socket, the bulb of described ball head connecting rod one end is placed in this ball-and-socket, forms ball pivot and connects, and be fixed and clamped by described ball pivot gland.
As further improvement of the utility model, described ball pivot gland is threaded with the ball pivot body, and has positioning hole on this ball pivot body and the ball pivot gland, fixes with locating stud.
As further improvement of the utility model, described ball pivot body and ball pivot cover respectively half circular ball-and-socket, and described bulb is contained in the circular ball-and-socket that is combined to form by both.
As further improvement of the utility model, the described ball head connecting rod the other end is hinged by the swash plate of another bulb and plunger pump, and the bulb center at these ball head connecting rod two ends all has liquid-through hole vertically.
As further improvement of the utility model, described ball pivot lid adopts and divides body structure, cuts open along the center line symmetry to be two halves.
The utility model is applicable to that technology is simple with in seawater, fresh water, high water base, the swash plate linkage type axial piston pump of mineral wet goods as working medium, reliable operation, long service life.
Description of drawings
Fig. 1 is a kind of example structure schematic representation of the present utility model;
Fig. 2 is the ball head connecting rod structural representation;
Fig. 3 is ball pivot lid structural representation;
Be designated among the above-mentioned figure: round nut 1, lock washer 2, back-up ring 3, plunger 4, ball pivot body 5, ball pivot gland 6, ball pivot lid 7, ball head connecting rod 8, O RunddichtringO 9, O RunddichtringO 10, locating stud 11, bulb liquid-through hole 12, bulb liquid-through hole 13.
Embodiment
Figure 1 shows that a kind of embodiment of the present utility model, comprise round nut 1, lock washer 2, back-up ring 3, plunger 4, ball pivot body 5, ball pivot gland 6, ball pivot lid 7, ball head connecting rod 8, O RunddichtringO 9, O RunddichtringO 10, locating stud 11.Plunger 4 and ball head connecting rod 8 adopt and divide body structure, and the concave spherical surface of the concave spherical surface of ball pivot body 5 and ball pivot lid 7 is adjacent to the outer spherical surface at the little bulb of ball head connecting rod 8 one ends; Ball pivot gland 6 compresses two hemispheres hinge cap 7, and adopts to be threaded with ball pivot body 5 ball pivot body 5, ball pivot lid 7 are compressed with connection rod sphere, forms the ball pivot connecting rod, in the ball pivot body 5 and the threaded connection place of ball pivot gland 6 locating stud 11 is housed, and prevents thread looseness; Ball pivot body 5 is locked ball pivot connecting rod, back-up ring 3 and plunger 4 by screw-thread fit with round nut 1, lock washer 2; With being connected of plunger 4 O RunddichtringO 9,10 is housed with plunger 4, ball pivot body 5 at back-up ring 3 on the step surface respectively, in suction water process, leaks to prevent plunger 4.
When plunger 4 is in when extruding stroke, the thrust of swash plate acts on the ball pivot body 5 by ball head connecting rod 8, and the step surface via ball pivot body 5 is delivered on the plunger 4 again, makes plunger 4 indentation cylinder holes, the extruding force that this moment, ball pivot body 5 inner ball surface was born bulb; When plunger 4 is in suction stroke, the pulling force of swash plate acts on the ball pivot lid 7 by ball head connecting rod 8, be delivered on the plunger 4 via interior step surface, ball pivot body 5, round nut 1 and the back-up ring 3 of ball pivot gland 6 successively again, make plunger 4 stretch out the cylinder hole, the extruding force that this moment, ball pivot lid 7 inner ball surface was born bulb.
Fig. 2 is the structural representation of ball head connecting rod, and bulb center, ball head connecting rod two ends respectively has liquid-through hole vertically.
Fig. 3 is the structural representation of ball pivot lid, cuts open along the center line symmetry to be two halves.
Claims (5)
1. plunger connecting rod assembly, comprise plunger (4), ball head connecting rod (8), ball pivot body (5), ball pivot lid (7), ball pivot gland (6) and locking nut (1), it is characterized in that: described ball pivot body (5) is positioned at plunger (4), and be fixed on the plunger (4) by described locking nut (1), this ball pivot body (5) forms ball-and-socket with described ball pivot lid (7), the bulb of described ball head connecting rod (8) one ends is placed in this ball-and-socket, the formation ball pivot connects, and is fixed and clamped by described ball pivot gland (6).
2. plunger connecting rod assembly according to claim 1 is characterized in that, described ball pivot gland (6) is threaded with ball pivot body (5), and has positioning hole on this ball pivot body (5) and the ball pivot gland (6), fixes with locating stud.
3. plunger connecting rod assembly according to claim 1 and 2 is characterized in that, on described ball pivot body (5) and the ball pivot lid (7) half circular ball-and-socket is arranged respectively, and described bulb is contained in the circular ball-and-socket that is combined to form by both.
4. plunger connecting rod assembly according to claim 1 and 2 is characterized in that, described ball pivot lid (7) is for dividing a body structure, and it is by forming along two of center line symmetry.
5. plunger connecting rod assembly according to claim 1 and 2 is characterized in that, described ball head connecting rod (8) the other end is hinged by the swash plate of another bulb and plunger pump, and the bulb center at this ball head connecting rod (8) two ends all has liquid-through hole vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200608254U CN202073771U (en) | 2011-03-09 | 2011-03-09 | Plunger connecting rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200608254U CN202073771U (en) | 2011-03-09 | 2011-03-09 | Plunger connecting rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073771U true CN202073771U (en) | 2011-12-14 |
Family
ID=45111875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200608254U Expired - Lifetime CN202073771U (en) | 2011-03-09 | 2011-03-09 | Plunger connecting rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194526A (en) * | 2018-03-19 | 2018-06-22 | 江苏可奈力机械制造有限公司 | A kind of novel main shaft connection structure |
| CN109519468A (en) * | 2018-11-16 | 2019-03-26 | 北京精密机电控制设备研究所 | A kind of gapless spherical joint of low friction is secondary and its assembly method and application |
-
2011
- 2011-03-09 CN CN2011200608254U patent/CN202073771U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194526A (en) * | 2018-03-19 | 2018-06-22 | 江苏可奈力机械制造有限公司 | A kind of novel main shaft connection structure |
| CN109519468A (en) * | 2018-11-16 | 2019-03-26 | 北京精密机电控制设备研究所 | A kind of gapless spherical joint of low friction is secondary and its assembly method and application |
| CN109519468B (en) * | 2018-11-16 | 2020-05-12 | 北京精密机电控制设备研究所 | Low-friction gapless spherical joint pair and assembling method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170505 Address after: 430205 Hubei city of Wuhan province Hongshan three village, Wuchang huakeda steam school practice of science and technology development center first floor Patentee after: WUHAN JUWEITIAN DIGITAL MACHINERY MANUFACTURING CO., LTD. Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 1037 Patentee before: Huazhong University of Science and Technology |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |