CN106762601B - A kind of elastohydrodynamic lubrication type valve plate - Google Patents
A kind of elastohydrodynamic lubrication type valve plate Download PDFInfo
- Publication number
- CN106762601B CN106762601B CN201611259334.6A CN201611259334A CN106762601B CN 106762601 B CN106762601 B CN 106762601B CN 201611259334 A CN201611259334 A CN 201611259334A CN 106762601 B CN106762601 B CN 106762601B
- Authority
- CN
- China
- Prior art keywords
- oil groove
- valve plate
- dynamic
- kidney
- pressure
- 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
Links
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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
-
- 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)
- Reciprocating Pumps (AREA)
Abstract
The above-mentioned technical problem of the present invention is mainly to be addressed by following technical proposals：A kind of elastohydrodynamic lubrication type valve plate, annularly, the kidney-shaped low pressure inlet port that kidney-shaped high pressure oil discharge outlet and the other side including side are isolated with the former, external seal band is provided with self-pressurized type dynamic and static pressure lubricating oil groove, be equipped in uniform way on the external seal band that oil discharge outlet connects be isolated with the self-pressurized type dynamic and static pressure lubricating oil groove but oppositely oriented lock oil groove, the lock oil groove specifically has inner circle arc side, left side spiral edge, right side spiral edge and outer circle arc side composition.Lock oil groove is introduced, the lock oil ability in the seal clearance can be improved, principle is the centrifugal action using spiral, the hole of the high pressure and divergence part at convergence is produced in slot respectively, especially at hole, it can reversely be pumped into the middle part of band with the high oil pressure of draw ambient.Lubrication and sealing effect are improved simultaneously in this way, dynamic and static pressure lubricating effect in especially minimum seal clearance.
Description
Technical field
The present invention relates to a kind of technical field of hydraulic elements, more particularly, to a kind of valve plate of high-pressure plunger pump.
Background technology
The characteristics of oil film plays lubrication and sealing function simultaneously in plunger pump Port Plate Pair, that is, need to seal each ram compression chamber
Again dynamic and static pressure lubricating is provided for axial support height of cylinder rotation.The development of high speed and high pressure plunger pump at present, just by Port Plate Pair
The serious restriction of lubrication and sealing characteristics, leverages the reliability and service life of plunger pump, numerous to have researched and analysed suction
Slot is opened up with decreasing cavitation and vibrating noise on existing big pressure difference and valve plate between oil discharge outlet, but seldom thus brings increasing
Gross leak problem.And it is current research hotspot to use dynamic pressure sealing, such as application number 201410254682.9.And use interval or
Continuous oil supply damps groove profile valve plate, and for the pressure of static pressure oil from the gear pump matched outside, the leakage actually caused is larger.If
Deliberately reduce sealing oil film thickness, not only be easy to cause abrasion, and sealing effect is good, the high pressure oil distribution face to play a supportive role
Product is small, and the support force actually generated is limited and result is equally the danger that dry friction occurs.That is, Port Plate Pair liquid film
Separating force distribution it is very uneven, in order to improve separating force, emphasis improves the liquid film stiffness of oil discharge outlet side, while should also improve
The separating force of inlet port side reduces wedge-shaped liquid film angle.Also, with the raising of the raising of plunger revolution speed and pressure, to oil
The requirement higher of film control, it is necessary to take into account fluid structurecoupling problem, that is, to consider the stress evagination of plunger bore ends and match
The indent of the stress surface of flow table, correlative study is it has been shown that the deformation is conducive to improve the lubrication and sealing characteristics of Port Plate Pair.For
This, engineering practice and theoretical research are all seeking a kind of New Type Valve Plate, to improve liquid film stiffness, while total effect of plunger pump
Rate.
Invention content
The above-mentioned technical problem of the present invention is mainly to be addressed by following technical proposals：A kind of elastohydrodynamic lubrication type is matched
Flow table, annularly, including kidney-shaped low pressure inlet port that the kidney-shaped high pressure oil discharge outlet of side and the other side are isolated with the former, it is outer close
Envelope band is provided with self-pressurized type dynamic and static pressure lubricating oil groove, and what is be equipped in uniform way on the external seal band that oil discharge outlet connects adds certainly with described
Pressure type dynamic and static pressure lubricating oil groove is isolated but oppositely oriented lock oil groove, and the lock oil groove specifically has inner circle arc side, left side spiral
Side, right side spiral edge and outer circle arc side composition.Lock oil groove is introduced, the lock oil ability in the seal clearance, principle can be improved
It is the centrifugal action using spiral, the hole for producing high pressure and divergence part at convergence in slot respectively can especially at hole
With the high oil pressure of draw ambient, it is reversely pumped into the middle part of band.Lubrication and sealing effect are improved simultaneously in this way, especially
Dynamic and static pressure lubricating effect in minimum seal clearance.
Technical scheme of the present invention can also be further perfect, preferably, a kind of elastohydrodynamic lubrication type valve plate, high pressure
The back side of hydraulic fluid port is surrounded with a circle zanjon and attenuated layer.Due to the external seal band near high pressure oil discharge outlet, force environment is harsh, and
And in the soft or hard pairing situation in cylinder body stiff dough and the soft face of valve plate, the valve plate of copper alloy has certain thermomechanical.If
The circle zanjon and attenuated layer set, constitute the effect of leaf spring, it is ensured that external seal band stress indent forms the convergence to periphery
Gap reduces aerial drainage, and ensures that film thickness increases, and improves lubricant effect.
Preferably, a kind of elastohydrodynamic lubrication type valve plate, the external seal band of kidney-shaped low pressure inlet port is equipped with dynamic pressure triangle
Slot, specifically by longitudinal edge, inside spin side, external spiral side composition.Since oil suction pressure is small at inlet port, sometimes for improvement oil suction
Effect, even there are certain vacuum degrees for inlet port.But due to the high-speed rotation of cylinder body, good oil can not be generated on band
Film condition, will produce dry friction.Hydrostatic lubrication effect is undesirable, and dynamic pressure triangular groove is arranged, and is imitated using the dynamic pressure of small―gap suture oil film
It answers, plays the effect of hydrodynamic lubrication, while reducing tilting moment suffered by cylinder body.
A kind of elastohydrodynamic lubrication type valve plate, it is characterised in that the external seal band of kidney-shaped low pressure inlet port is equipped with dynamic pressure triangle
The distribution radius of slot is more than self-pressurized type dynamic and static pressure lubricating oil groove.The situation that ensure that low-pressure side is low compared with oil extraction side in pressure is set
Under, torque bigger ensures that the cylinder body of high-speed rotation is steady to mitigate tilting moment.
Therefore, this programme, which is utilized, fully uses helical groove structure, and easily the specific part of valve plate is especially set
It sets, to realize dynamic and static pressure lubricating on valve plate and play a part of the bullet in negative-feedback, especially fluid structurecoupling to tilting moment
Lubricating action is flowed, oil film rigidity is improved and support force is more the reduction of leakage to reduce tilting moment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention（Front）；
Fig. 2 is the rearview of Fig. 1（The back side）；
Fig. 3 is the sectional view of Fig. 2；
Fig. 4 is the groove profile for locking oil groove 4；
Fig. 5 is the groove profile of dynamic pressure triangular groove 5；
Fig. 6 is the groove profile of self-pressurized type dynamic and static pressure lubricating oil groove 3.
In figure：1, high pressure oil discharge outlet, 2, low pressure inlet port, 3, self-pressurized type dynamic and static pressure lubricating oil groove, 4, lock oil groove, 5,
Dynamic pressure triangular groove, 6, zanjon, 7, attenuated layer.
Specific implementation mode
Technical scheme of the present invention is further described in detail by way of example and in conjunction with the accompanying drawings：
Embodiment 1：As shown in Fig. 1 to Fig. 6, a kind of elastohydrodynamic lubrication type valve plate, a kind of elastohydrodynamic lubrication type valve plate is in ring
Shape, including kidney-shaped low pressure inlet port 2 that the kidney-shaped high pressure oil discharge outlet 1 of side and the other side are isolated with the former, external seal band is set
It is equipped with self-pressurized type dynamic and static pressure lubricating oil groove 3, it is being equipped in uniform way on the external seal band that oil discharge outlet connects with the self-pressurized type
Dynamic and static pressure lubricating oil groove is isolated but oppositely oriented lock oil groove 4, and the lock oil groove 4 specifically has an inner circle arc side, left side spiral edge,
Right side spiral edge and outer circle arc side composition.The back side of high pressure oil discharge outlet 1 is surrounded with a circle zanjon 6 and attenuated layer 7.Due to high pressure
External seal band near hydraulic fluid port 1, force environment is harsh, and in the soft or hard pairing situation in cylinder body stiff dough and the soft face of valve plate,
The valve plate of copper alloy has certain thermomechanical.The circle zanjon and attenuated layer being arranged, constitutes the effect of leaf spring, can be with
Ensure external seal band stress indent, form the convergence gap to periphery, reduce aerial drainage, and ensure that film thickness increases, improves lubrication
Effect, specific setting leaf spring effect allow for the thermomechanical amount of cylinder body plunger nose end.
Embodiment 2：As shown in Fig. 1 to Fig. 6, a kind of elastohydrodynamic lubrication type valve plate, a kind of elastohydrodynamic lubrication type valve plate is in ring
Shape, including kidney-shaped low pressure inlet port 2 that the kidney-shaped high pressure oil discharge outlet 1 of side and the other side are isolated with the former, external seal band is set
It is equipped with self-pressurized type dynamic and static pressure lubricating oil groove 3, it is being equipped in uniform way on the external seal band that oil discharge outlet connects with the self-pressurized type
Dynamic and static pressure lubricating oil groove is isolated but oppositely oriented lock oil groove 4, and the lock oil groove 4 specifically has an inner circle arc side, left side spiral edge,
Right side spiral edge and outer circle arc side composition.The back side of high pressure oil discharge outlet 1 is surrounded with a circle zanjon 6 and attenuated layer 7.Kidney-shaped low pressure is inhaled
The external seal band of hydraulic fluid port is equipped with dynamic pressure triangular groove, specifically by longitudinal edge, inside spin side, external spiral side composition.
Embodiment 3：Structural principle is equipped with dynamic pressure triangular groove with embodiment 2, the external seal band of tool kidney-shaped low pressure inlet port 2
5 distribution radius is more than self-pressurized type dynamic and static pressure lubricating oil groove 3.The situation that ensure that low-pressure side is low compared with oil extraction side in pressure is set
Under, torque bigger ensures that the cylinder body of high-speed rotation is steady to mitigate tilting moment.Add certainly moreover, lock oil groove 4 is located at as far as possible
In the interval of pressure type dynamic and static pressure lubricating oil groove 3, ensure that fluid is locked in oil groove 4.
Therefore, the present invention has rationally distributed, and processing is facilitated to be directed to valve plate work characteristics, is generated based on elastohydrodynamic lubrication former
Reason increases elastic deformation amount, fully considers the generation principle of dynamic and static pressure, and helicla flute is arranged, when reality forms Port Plate Pair, control oil
Film thickness should be less than 10 microns, and dynamic and static pressure lubricating slot is arranged on the external seal band of oil discharge outlet, can improve liquid film stiffness, reduce
Tilting moment optimizes convenient for liquid film shape, and dynamic pressure groove is arranged on the external seal band of inlet port side, limits leakage rate, so using
The valve plate can effectively reduce leakage, reduce flow vibration and noise, reduce generation of the cavitation at inlet port beginning.
Claims (4)
1. a kind of elastohydrodynamic lubrication type valve plate annularly includes the kidney-shaped high pressure oil discharge outlet of side（1）With the other side and the former phase
The kidney-shaped low pressure inlet port of isolation（2）, external seal band is provided with self-pressurized type dynamic and static pressure lubricating oil groove（3）, it is characterised in that row
Hydraulic fluid port（1）It is equipped with and is isolated with the self-pressurized type dynamic and static pressure lubricating oil groove but oppositely oriented in uniform way on the external seal band to connect
Lock oil groove（4）, the lock oil groove（4）It is specific to have inner circle arc side, left side spiral edge, right side spiral edge and outer circle arc side composition.
2. a kind of elastohydrodynamic lubrication type valve plate according to claim 1, it is characterised in that high pressure oil discharge outlet（1）Back side ring
It is wound with a circle zanjon（6）And attenuated layer（7）.
3. a kind of elastohydrodynamic lubrication type valve plate according to claim 1 or 2, it is characterised in that kidney-shaped low pressure inlet port（2）
External seal band be equipped with dynamic pressure triangular groove（5）, specifically by longitudinal edge, inside spin side, external spiral side composition.
4. a kind of elastohydrodynamic lubrication type valve plate according to claim 3, it is characterised in that kidney-shaped low pressure inlet port（2）It is outer
Band is equipped with dynamic pressure triangular groove（5）Distribution radius be more than self-pressurized type dynamic and static pressure lubricating oil groove（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259334.6A CN106762601B (en) | 2016-12-30 | 2016-12-30 | A kind of elastohydrodynamic lubrication type valve plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259334.6A CN106762601B (en) | 2016-12-30 | 2016-12-30 | A kind of elastohydrodynamic lubrication type valve plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762601A CN106762601A (en) | 2017-05-31 |
| CN106762601B true CN106762601B (en) | 2018-08-21 |
Family
ID=58953806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259334.6A Expired - Fee Related CN106762601B (en) | 2016-12-30 | 2016-12-30 | A kind of elastohydrodynamic lubrication type valve plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762601B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161268A (en) * | 2001-09-17 | 2003-06-06 | Ebara Corp | Axial piston type pump and motor |
| JP3894321B2 (en) * | 2003-07-14 | 2007-03-22 | 大豊工業株式会社 | Valve plate |
| CN104019024A (en) * | 2014-06-10 | 2014-09-03 | 柳州柳工液压件有限公司 | Leakproof dynamic pressure type valve plate |
| CN105275794A (en) * | 2015-11-02 | 2016-01-27 | 太原理工大学 | Thrust plate having low-friction surface and manufacturing method |
| CN105423104A (en) * | 2015-12-24 | 2016-03-23 | 衢州学院 | Self-pressurization hydro-hybrid lubricated port plate |
| CN205669483U (en) * | 2016-04-17 | 2016-11-02 | 三门县职业中等专业学校 | A kind of axial plunger pump hole slot combines flow distribution apparatus |
| CN206458587U (en) * | 2016-12-30 | 2017-09-01 | 衢州学院 | A kind of elastohydrodynamic lubrication type valve plate |
-
2016
- 2016-12-30 CN CN201611259334.6A patent/CN106762601B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161268A (en) * | 2001-09-17 | 2003-06-06 | Ebara Corp | Axial piston type pump and motor |
| JP3894321B2 (en) * | 2003-07-14 | 2007-03-22 | 大豊工業株式会社 | Valve plate |
| CN104019024A (en) * | 2014-06-10 | 2014-09-03 | 柳州柳工液压件有限公司 | Leakproof dynamic pressure type valve plate |
| CN105275794A (en) * | 2015-11-02 | 2016-01-27 | 太原理工大学 | Thrust plate having low-friction surface and manufacturing method |
| CN105423104A (en) * | 2015-12-24 | 2016-03-23 | 衢州学院 | Self-pressurization hydro-hybrid lubricated port plate |
| CN205669483U (en) * | 2016-04-17 | 2016-11-02 | 三门县职业中等专业学校 | A kind of axial plunger pump hole slot combines flow distribution apparatus |
| CN206458587U (en) * | 2016-12-30 | 2017-09-01 | 衢州学院 | A kind of elastohydrodynamic lubrication type valve plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762601A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103184990B (en) | Oblique plunger type pure water hydraulic swash plate pump | |
| CN103939312B (en) | A kind of double huge discharge axial plunger pump of balanced type | |
| WO2021020074A1 (en) | Sliding component | |
| CN206458587U (en) | A kind of elastohydrodynamic lubrication type valve plate | |
| CN107781291B (en) | A kind of pump of balanced radial force combination floating buss | |
| JP2017150425A (en) | Two-cylinder type sealed compressor | |
| US20120213656A1 (en) | Axial piston hydraulic rotating machine | |
| JP2008157330A (en) | Bearing and liquid cooled screw compressor | |
| CN107429676A (en) | Hydraulic pump | |
| CN104019024B (en) | Anti-leak dynamic pressure type valve plate | |
| CN106762601B (en) | A kind of elastohydrodynamic lubrication type valve plate | |
| CN105756916B (en) | It is axially facing the valve plate and its assembly technology of plunger pump noise reduction | |
| CN108278186B (en) | A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission | |
| CN104776018B (en) | A kind of dynamic and static pressure lubricating type valve plate | |
| CN112412722B (en) | High-speed active lubrication radial static balance plunger pump for high-water-based medium | |
| CN102959259A (en) | Hydrostatic machine, especially axial piston machine | |
| JP2012184707A (en) | Swash plate type piston pump | |
| CN105114278B (en) | Axial plunger pump | |
| US20140109761A1 (en) | Axial pump having stress reduced port plate | |
| CN202326055U (en) | Inclined-tray type dosing plunger pump | |
| CN205638890U (en) | Valve plate of making an uproar falls towards axial plunger pump | |
| CN213899890U (en) | Dry gas sealing device | |
| CN208934876U (en) | A kind of compression assembly and compressor | |
| CN206449109U (en) | High-speed fuel oil gear pump floating bearing | |
| CN206708007U (en) | Rotary compressor and its slide plate, vane slot and compression assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180821 Termination date: 20201230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |