CN206458587U - A kind of elastohydrodynamic lubrication type valve plate - Google Patents
A kind of elastohydrodynamic lubrication type valve plate Download PDFInfo
- Publication number
- CN206458587U CN206458587U CN201621481355.8U CN201621481355U CN206458587U CN 206458587 U CN206458587 U CN 206458587U CN 201621481355 U CN201621481355 U CN 201621481355U CN 206458587 U CN206458587 U CN 206458587U
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- oil groove
- valve plate
- dynamic
- kidney
- groove
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Abstract
Above-mentioned technical problem of the present utility model is mainly what is 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 opposite side including side are isolated with the former, external seal band is provided with self-pressurized type dynamic and static pressure lubricating oil groove, what is be provided with uniform way on the external seal band that oil discharge outlet connects is isolated but oppositely oriented lock oil groove with the self-pressurized type dynamic and static pressure lubricating oil groove, the lock oil groove specifically has Inner arc side, left side spiral edge, right side spiral edge and external arc side composition.Lock oil groove is introduced, the oily ability of lock in the seal clearance can be improved, its principle is the centrifugal action using spiral, the high pressure at convergence and the hole of divergence part are produced in groove respectively, particularly at hole, the middle part of band can be reversely pumped into the high oil pressure of draw ambient.Dynamic and static pressure lubricating effect in lubrication and sealing effectiveness, particularly minimum seal clearance is so improved simultaneously.
Description
Technical field
The utility model is related to a kind of technical field of hydraulic elements, more particularly, to a kind of flow of high-pressure plunger pump
Disk.
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
Rotated again for axially support height of cylinder and dynamic and static pressure lubricating is provided.The development of current high speed and high pressure plunger pump, 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
Slotted eye is opened up with decreasing cavitation and vibrating noise in the big pressure differential and valve plate existed between oil discharge outlet, but seldom thus brings increasing
Gross leak problem.And it is current study 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 the pressure of its static pressure oil is from the gear pump matched somebody with somebody outside, and the leakage actually caused is larger.If
Deliberately reduce sealing oil film thickness, not only easily cause abrasion, and good sealing effect, the hydraulic oil distribution face played a supportive role
Product is small, and the actual support force produced is limited, and result is equally to have the danger for occurring dry friction.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, the raising of the raising and pressure with plunger revolution speed, to oil
The requirement of film control is higher, it is necessary to take into account fluid structurecoupling problem, that is, to consider the stress evagination of plunger bore ends and match somebody with somebody
The indent of the stress surface of flow table, correlative study are it has been shown that the deformation is conducive to improving 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.
The content of the invention
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：A kind of elastohydrodynamic lubrication
Type valve plate, annularly, includes the kidney-shaped low pressure inlet port that is isolated with the former of kidney-shaped high pressure oil discharge outlet and opposite side of side,
External seal band be provided be provided with uniform way on self-pressurized type dynamic and static pressure lubricating oil groove, the external seal band that oil discharge outlet connects with it is described
Self-pressurized type dynamic and static pressure lubricating oil groove is isolated but oppositely oriented lock oil groove, and the lock oil groove specifically has Inner arc side, left side
Spiral edge, right side spiral edge and external arc side composition.Lock oil groove is introduced, the oily ability of lock in the seal clearance can be improved, its
Principle is the centrifugal action using spiral, produces the high pressure at convergence and the hole of divergence part, particularly hole in groove respectively
Place, can reversely be pumped into the middle part of band with the high oil pressure of draw ambient.Lubrication and sealing effectiveness are so improved simultaneously,
Dynamic and static pressure lubricating effect in particularly minimum seal clearance.
The technical solution of the utility model can also be further perfect, preferably, a kind of elastohydrodynamic lubrication type valve plate, high
The back side of pressure 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 severe
Carve, 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 heating power and become
Shape.The circle zanjon and attenuated layer set, constitutes the effect of leaf spring, it is ensured that external seal band stress indent, is formed to periphery
Convergence gap, reduce aerial drainage, and ensure thickness increase, improve lubricant effect.
Preferably, a kind of elastohydrodynamic lubrication type valve plate, the external seal band of kidney-shaped low pressure inlet port is provided with dynamic pressure triangle
Groove, specifically by longitudinal edge, inside spin side, external spiral side composition.Because oil suction pressure is small at inlet port, sometimes for improvement oil suction
Even there is certain vacuum in effect, inlet port.But it is due to that good oil can not be produced on the high-speed rotation of cylinder body, band
Film condition, can produce dry friction.Hydrostatic lubrication effect is undesirable, sets dynamic pressure triangular groove, is imitated using the dynamic pressure of small―gap suture oil film
Should, the effect of hydrodynamic lubrication is played, 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 provided with dynamic pressure triangle
The distribution radius of groove is more than self-pressurized type dynamic and static pressure lubricating oil groove.Setting ensure that low-pressure side in the pressure situation low compared with oil extraction side
Under, torque is bigger, to mitigate tilting moment, ensures that the cylinder body of high-speed rotation is steady.
Therefore, this programme be make use of and fully use helical groove structure, and easily the specific part of valve plate is especially set
Put, to realize on valve plate dynamic and static pressure lubricating and play a part of the bullet in negative-feedback, particularly fluid structurecoupling to tilting moment
Lubrication is flowed, oil film rigidity and support force is improved, to reduce tilting moment, is more the reduction of leakage.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model（Front）；
Fig. 2 is Fig. 1 rearview（The back side）；
Fig. 3 is Fig. 2 profile；
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：1st, 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.
Embodiment
The technical program is further described in detail below by embodiment and with reference to accompanying drawing：
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, in ring
Shape, includes the kidney-shaped low pressure inlet port 2 that is isolated with the former of kidney-shaped high pressure oil discharge outlet 1 and opposite side of side, external seal band is set
It is equipped with being provided with uniform way with the self-pressurized type on self-pressurized type dynamic and static pressure lubricating oil groove 3, the external seal band that oil discharge outlet connects
Dynamic and static pressure lubricating oil groove is isolated but oppositely oriented lock oil groove 4, and the lock oil groove 4 is specific an Inner arc side, left side spiral edge,
Right side spiral edge and external 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 set, 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 thickness increase, improve lubrication
Effect, the specific thermomechanical amount for setting leaf spring effect to allow for 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, in ring
Shape, includes the kidney-shaped low pressure inlet port 2 that is isolated with the former of kidney-shaped high pressure oil discharge outlet 1 and opposite side of side, external seal band is set
It is equipped with being provided with uniform way with the self-pressurized type on self-pressurized type dynamic and static pressure lubricating oil groove 3, the external seal band that oil discharge outlet connects
Dynamic and static pressure lubricating oil groove is isolated but oppositely oriented lock oil groove 4, and the lock oil groove 4 is specific an Inner arc side, left side spiral edge,
Right side spiral edge and external 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 provided with dynamic pressure triangular groove, specifically by longitudinal edge, inside spin side, external spiral side composition.
Embodiment 3：Structural principle be the same as Example 2, the external seal band of tool kidney-shaped low pressure inlet port 2 is provided with dynamic pressure triangular groove
5 distribution radius is more than self-pressurized type dynamic and static pressure lubricating oil groove 3.Setting ensure that low-pressure side in the pressure situation low compared with oil extraction side
Under, torque is bigger, to mitigate tilting moment, ensures that the cylinder body of high-speed rotation is steady.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 utility model has rationally distributed, and convenient processing is directed to valve plate work characteristics, based on elastohydrodynamic lubrication production
Raw principle, takes into full account the generation principle of dynamic and static pressure, sets helicla flute, and during actual composition Port Plate Pair, control oil film thickness should be small
In 10 microns, dynamic and static pressure lubricating groove is set on the external seal band of oil discharge outlet, liquid film stiffness can be improved, reduces tilting moment,
It is easy to liquid film shape to optimize, so leakage, the vibration of reduction flow and noise can be effectively reduced using the valve plate, reduces cavitation and exist
The generation at inlet port top.
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 opposite 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 provided with and is isolated but oppositely oriented with the self-pressurized type dynamic and static pressure lubricating oil groove in uniform way on the external seal band connected
Lock oil groove（4）, the lock oil groove（4）It is specific to have Inner arc side, left side spiral edge, right side spiral edge and external 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 provided 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 provided 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 |
|---|---|---|---|
| CN201621481355.8U CN206458587U (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 |
|---|---|---|---|
| CN201621481355.8U CN206458587U (en) | 2016-12-30 | 2016-12-30 | A kind of elastohydrodynamic lubrication type valve plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458587U true CN206458587U (en) | 2017-09-01 |
Family
ID=59698015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621481355.8U Withdrawn - After Issue CN206458587U (en) | 2016-12-30 | 2016-12-30 | A kind of elastohydrodynamic lubrication type valve plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458587U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762601A (en) * | 2016-12-30 | 2017-05-31 | 衢州学院 | A kind of elastohydrodynamic lubrication type valve plate |
| CN109578358A (en) * | 2018-12-12 | 2019-04-05 | 无锡鹰贝精密轴承有限公司 | Bimetallic valve plate |
-
2016
- 2016-12-30 CN CN201621481355.8U patent/CN206458587U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762601A (en) * | 2016-12-30 | 2017-05-31 | 衢州学院 | A kind of elastohydrodynamic lubrication type valve plate |
| CN106762601B (en) * | 2016-12-30 | 2018-08-21 | 衢州学院 | A kind of elastohydrodynamic lubrication type valve plate |
| CN109578358A (en) * | 2018-12-12 | 2019-04-05 | 无锡鹰贝精密轴承有限公司 | Bimetallic valve plate |
| CN109578358B (en) * | 2018-12-12 | 2023-12-26 | 无锡鹰贝精密液压有限公司 | Bimetal valve plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20180821 |
|
| AV01 | Patent right actively abandoned |