CN109611326A - A kind of band damping hole and grading ring slot plunger pump plunger - Google Patents
A kind of band damping hole and grading ring slot plunger pump plunger Download PDFInfo
- Publication number
- CN109611326A CN109611326A CN201910062448.9A CN201910062448A CN109611326A CN 109611326 A CN109611326 A CN 109611326A CN 201910062448 A CN201910062448 A CN 201910062448A CN 109611326 A CN109611326 A CN 109611326A
- Authority
- CN
- China
- Prior art keywords
- plunger
- damping hole
- annular groove
- cavity
- ball
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention provides a kind of band damping hole and grading ring slot plunger pump plunger, it includes plunger body (1), plunger ball (11), bulb damping hole (12), plunger cavity (13), plunger sidewall (14), annular groove (15) and damping hole (16)；For the device by introducing in annular groove the high pressure oil in plunger cavity by damping hole, mitigate plunger causes cylinder body and plunger in high speed that viscous glutinous phenomenon occurs due to being generated serious unlubricated friction to cylinder body by lateral force；Meanwhile by the hydrostatic support of generation, make plunger improving to neutrality in cylinder interior, it is easier to establish oil film, improve the greasy property between plunger and cylinder body.And groove structure makes the contamination resistance contamination resistance of plunger.The present invention is versatile；Structure is simple, good manufacturability, has broad prospect of application.
Description
Technical field
The present invention provides a kind of band damping hole and grading ring slot plunger pump plunger, it is particularly used for preventing high speed high
Viscous glutinous phenomenon occurs between plunger and cylinder body when rotating at high speed for hydraulic plunger pump, belongs to plunger pump technique field.
Background technique
High speed and high pressure plunger pump is used widely in aerospace field at present, plunger pump work in fast state,
The speed that plunger moves back and forth in cylinder body also greatly improves.Plunger can generate a very big lateral force to cylinder body at this moment,
Cause to generate mixed film friction between cylinder body, the viscous glutinous phenomenon easily between generation plunger and cylinder body.Side of the plunger in cylinder body
To power simultaneously can between ram/cylinder lubrication and band carry out very serious influence.
Summary of the invention
In view of the above-mentioned deficiencies, the present invention provides a kind of band damping hole and grading ring slot plunger pump plungers.
The present invention is achieved by the following technical solutions:
A kind of band damping hole of the present invention and grading ring slot plunger pump plunger, it includes plunger body (1), plunger ball
(11), bulb damping hole (12), plunger cavity (13), plunger sidewall (14), annular groove (15), damping hole (16)；Each composition
Partially mutual relationship is: plunger body (1) one end is the plunger ball (11) connecting with piston shoes, in plunger body (1)
The other end be plunger cavity (13), several annular grooves (15), each annular groove (15) are provided on plunger sidewall (14)
Several damping holes (16) are inside provided with to be connected with plunger cavity (13)；It is characterized by: the annular groove (15) and plunger cavity
(13) internal mutually to be linked up by damping hole (16), for plunger in pressure oil, high-voltage oil liquid is recessed in annular by damping hole (16)
Pressure is established in slot (15), plays the role of static pressure support, reduces friction of the plunger lateral force to cylinder body, improves the centering of plunger
Performance, greasy property, to improve the service life of plunger pump；
The annular groove (15) is around (14) one weeks annular grooves of plunger sidewall；The annular groove (15) is located at column
Sealing area is public when and plunger body Chong Die with cylinder body (1) moves to bottom dead centre when plug body (1) moves to top dead-centre
Part；
The damping hole (16) is elongated hole, is evenly distributed in annular groove (15) along plunger wall annular surface；
The shape design of the plunger body (1) is: one end have dome-type plunger ball (11), the other end be containing
The cylindrical body of plunger cavity (13)；
Plunger ball (11) shape design is: contoured surface is the articulated joint of spherical surface；
Bulb damping hole (12) shape design is: in the circular hole road that the vertex position of plunger ball opens up, by plunger
Oil liquid in chamber (13) introduces plunger ball (11) top；
Plunger cavity (13) shape design is: the cylindrical cavity inside plunger body (1) one end, cavity pass through resistance
Buddhist nun's aperture (16) and annular groove (15) are linked up, and are linked up by bulb damping hole (12) and plunger ball (11)；
Plunger sidewall (14) shape design is: for cylindrical surface, above opening up several annular grooves (15)；
The invention has the beneficial effect that the device is recessed by the way that the high pressure oil in plunger cavity is introduced annular by damping hole
In slot, mitigate plunger causes cylinder body and plunger generation in high speed viscous glutinous due to being generated serious unlubricated friction to cylinder body by lateral force
Phenomenon.Meanwhile by the hydrostatic support of generation, make plunger improving to neutrality in cylinder interior, it is easier to establish oil film, mention
Greasy property between high plunger and cylinder body.And groove structure makes the contamination resistance contamination resistance of plunger.The present invention is logical
It is strong with property；Structure is simple, good manufacturability, has broad prospect of application.
Detailed description of the invention
Attached drawing 1 is the cross section view of plunger of the invention.
Attached drawing 2 is the partial enlarged view of the part I in Fig. 1.
Appended drawing reference: 1- plunger body, 11- plunger ball, 12- bulb damping hole, 13- plunger cavity, 14- plunger sidewall,
15- annular groove, 16- damping hole.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing.Described embodiment is only
It is only one embodiment of the present of invention, the quantity of annular recess 15 is 2, the damping hole 16 in each annular groove 15
Quantity is 4, is the embodiment for changing annular groove number and damping hole number based on the embodiments of the present invention or only, and this field is general
Logical technical staff every other embodiment obtained without making creative work, belongs to protection of the invention
Range.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term " on ", "lower", "left", "right"
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, it is only for facilitates description embodiments of the present invention.
A kind of band damping hole and grading ring slot plunger pump plunger are by plunger body 1, plunger ball 11, bulb damping
Hole 12, plunger cavity 13, plunger sidewall 14, annular groove 15, damping hole 16 form, it is characterised in that: 1 left end of plunger body
For plunger ball 11, it is provided with bulb damping hole 12 in plunger ball 11 and is connected with plunger cavity 13.2 are provided on plunger sidewall 14
A annular groove 15 is evenly arranged 4 damping holes 16, annular groove along 14 outer rim of plunger sidewall in each annular groove 15
15 are linked up with plunger cavity 13 by 16 phase of damping hole.
The annular groove 15 is around 14 1 weeks annular grooves of plunger sidewall.
When Chong Die and plunger motion is to bottom dead centre with cylinder body when the annular groove 15 is located at plunger motion to top dead-centre
The common portion Chong Die with cylinder body.
The damping hole 16 is elongated hole, is evenly distributed in annular groove 15 along 14 annular surface of plunger wall.
For the ordinary skill in the art, introduction according to the present invention, do not depart from the principle of the present invention with
In the case where spirit, changes, modifications that embodiment is carried out, replacement and variant still fall within protection scope of the present invention it
It is interior.
Claims (1)
1. a kind of band damping hole and grading ring slot plunger pump plunger, it is characterised in that: it includes plunger body (1), plunger ball
Head (11), bulb damping hole (12), plunger cavity (13), plunger sidewall (14), annular groove (15), damping hole (16)；Each group
Be at the mutual relationship in part: plunger body (1) one end is the plunger ball (11) connecting with piston shoes, in plunger body
(1) the other end is plunger cavity (13), and predetermined annular groove (15), each annular groove are provided on plunger sidewall (14)
(15) a predetermined damping hole (16) is provided in be connected with plunger cavity (13)；It is characterized by: the annular groove (15) and column
It is mutually linked up inside plug chamber (13) by damping hole (16), for plunger in pressure oil, high-voltage oil liquid is by damping hole (16) in ring
Pressure is established in connected in star (15), plays the role of static pressure support, reduces friction of the plunger lateral force to cylinder body, improves plunger
Centring property, greasy property, to improve the service life of plunger pump；
The annular groove (15) is around (14) one weeks annular grooves of plunger sidewall；The annular groove (15) is located at plunger sheet
The common portion of sealing area when and plunger body Chong Die with cylinder body (1) moves to bottom dead centre when body (1) moves to top dead-centre；
The damping hole (16) is elongated hole, is evenly distributed in annular groove (15) along plunger wall annular surface；
One end of the plunger body (1) has the plunger ball (11) of dome-type, and the other end is the circle containing plunger cavity (13)
Cylinder；
Described its contoured surface of plunger ball (11) is the articulated joint of spherical surface；
The bulb damping hole (12) be in the circular hole road that opens up of vertex position of plunger ball (11), will be in plunger cavity (13)
Oil liquid introduces plunger ball (11) top；
The plunger cavity (13) is the cylindrical cavity inside plunger body (1) one end, cavity by damping hole (16) with
Annular groove (15) is linked up, and is linked up by bulb damping hole (12) and plunger ball (11)；
The plunger sidewall (14) is cylindrical surface, above opens up several annular grooves (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062448.9A CN109611326A (en) | 2019-01-23 | 2019-01-23 | A kind of band damping hole and grading ring slot plunger pump plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062448.9A CN109611326A (en) | 2019-01-23 | 2019-01-23 | A kind of band damping hole and grading ring slot plunger pump plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109611326A true CN109611326A (en) | 2019-04-12 |
Family
ID=66017187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910062448.9A Pending CN109611326A (en) | 2019-01-23 | 2019-01-23 | A kind of band damping hole and grading ring slot plunger pump plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259678A (en) * | 2019-07-17 | 2019-09-20 | 重庆红江机械有限责任公司 | The plunger assembly of cam-type axial piston pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05113173A (en) * | 1991-10-22 | 1993-05-07 | Hitachi Ltd | Swash plate type liquid pressure rotary machine |
| JPH10288145A (en) * | 1997-04-11 | 1998-10-27 | Gijutsu Kaihatsu Sogo Kenkyusho:Kk | Radial plunger pump |
| JP2000009025A (en) * | 1998-06-19 | 2000-01-11 | Honda Motor Co Ltd | Plunger assembly in axial plunger type hydraulic unit |
| CN101460741A (en) * | 2006-06-02 | 2009-06-17 | 布鲁宁赫斯海诺马帝克有限公司 | Axial piston machine having a hydrostatic support of the hold-down |
| CN203321814U (en) * | 2013-04-27 | 2013-12-04 | 王兆强 | Plunger body used for axial plunger pump and based on hydrostatic bearing principle |
| DE102013208439A1 (en) * | 2013-05-08 | 2014-11-13 | Robert Bosch Gmbh | Hollow piston for a hydrostatic piston machine |
-
2019
- 2019-01-23 CN CN201910062448.9A patent/CN109611326A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05113173A (en) * | 1991-10-22 | 1993-05-07 | Hitachi Ltd | Swash plate type liquid pressure rotary machine |
| JPH10288145A (en) * | 1997-04-11 | 1998-10-27 | Gijutsu Kaihatsu Sogo Kenkyusho:Kk | Radial plunger pump |
| JP2000009025A (en) * | 1998-06-19 | 2000-01-11 | Honda Motor Co Ltd | Plunger assembly in axial plunger type hydraulic unit |
| CN101460741A (en) * | 2006-06-02 | 2009-06-17 | 布鲁宁赫斯海诺马帝克有限公司 | Axial piston machine having a hydrostatic support of the hold-down |
| CN203321814U (en) * | 2013-04-27 | 2013-12-04 | 王兆强 | Plunger body used for axial plunger pump and based on hydrostatic bearing principle |
| DE102013208439A1 (en) * | 2013-05-08 | 2014-11-13 | Robert Bosch Gmbh | Hollow piston for a hydrostatic piston machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259678A (en) * | 2019-07-17 | 2019-09-20 | 重庆红江机械有限责任公司 | The plunger assembly of cam-type axial piston pump |
| CN110259678B (en) * | 2019-07-17 | 2024-02-13 | 重庆红江机械有限责任公司 | Plunger assembly of swash plate type axial plunger pump |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190412 |