CN108167459A - A kind of voltage stabilizing pin structure for being used to compensate in-flow inserted valve closing direction hydraulic power - Google Patents
A kind of voltage stabilizing pin structure for being used to compensate in-flow inserted valve closing direction hydraulic power Download PDFInfo
- Publication number
- CN108167459A CN108167459A CN201711309946.6A CN201711309946A CN108167459A CN 108167459 A CN108167459 A CN 108167459A CN 201711309946 A CN201711309946 A CN 201711309946A CN 108167459 A CN108167459 A CN 108167459A
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- China
- Prior art keywords
- voltage stabilizing
- spool
- face
- valve
- pin structure
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Servomotors (AREA)
Abstract
The invention discloses a kind of for compensating the voltage stabilizing pin structure of in-flow inserted valve closing direction hydraulic power.The circumferential surface of the valve pocket bottom of inserted valve is provided with the circumferentially spaced multiple throttle orifices being uniformly arranged, the valve pocket is being equipped with chamfering close to the inner face inner edge of oil return opening, chamfering coordinates with the spool bottom end face outer rim close to oil return opening, and voltage stabilizing pin structure is equipped in the bottom end face of spool；Connecting rod and voltage stabilizing nail tail portion boss are followed closely including voltage stabilizing, voltage stabilizing nail connecting rod one end is fixed on the bottom end face center of spool, the voltage stabilizing nail connecting rod other end is fixedly connected with voltage stabilizing nail tail portion boss small end face center, bottom end face of the large end face downward and planar to spool of tail portion boss, and voltage stabilizing nail connecting rod, voltage stabilizing nail tail portion boss and spool coaxial arrangement are followed closely in voltage stabilizing.The present invention can compensate for in-flow cone valve closing direction hydraulic power, and the degree of compensation of hydraulic power suffered by spool can be adjusted.
Description
Technical field
The present invention relates to the voltage stabilizing pin structures of hydraulic pressure valve core flow force compensation, are used to compensate interior stream more particularly, to one kind
The voltage stabilizing pin structure of formula inserted valve closing direction hydraulic power.
Background technology
Inserted valve because its is simple in structure, circulation is big, quick action due to be widely used in various hydraulic control systems, especially
It is that present proportional technique is combined with inserted valve so that inserted valve uses further genralrlization, and therefore, inserted valve is modern high
There is critical role in pressure large-flow hydraulic system.
Since flat cone valve not only inherits the good sealing property and sensitivity of common full cone cone valve, also possess more complete than tradition
The through-current capability of cone valve bigger is bored, therefore the main stage spool of inserted valve is mostly used flat cone valve.However, cone valve valve in practical applications
Core is easily interfered at work by hydraulic power, and since inserted valve is used for the characteristic of high-pressure high-flow, hydraulic power pair in itself
It is more serious in the interference of spool, ratio control is carried out for inserted valve and causes great interference.
Invention content
In order to be compensated to in-flow inserted valve spool closing direction hydraulic power, the present invention provides one kind for compensating
The voltage stabilizing pin structure of in-flow inserted valve closing direction hydraulic power can compensate for in-flow inserting valve core closing direction and surge
Power, the spool for simplifying inserted valve control and increase spool stability allowance, and the spool for simplifying inserted valve is controlled and increases spool
Stability allowance has highly important engineering significance.
The technical solution adopted by the present invention is：
The present invention voltage stabilizing pin structure be set in inserted valve, inserted valve include valve body, valve pocket and spool, valve body be provided with into
Hydraulic fluid port and oil return opening, the circumferential surface of the valve pocket bottom are provided with the circumferentially spaced multiple throttle orifices being uniformly arranged, and the valve pocket exists
Chamfering is equipped with close to the inner face inner edge of oil return opening, chamfering realizes valve with the spool bottom end face outer rim cooperation close to oil return opening
Switch seal is equipped with voltage stabilizing pin structure in the bottom end face of spool.
The voltage stabilizing nail is in connecting rod-boss structure.
The voltage stabilizing pin structure includes voltage stabilizing nail connecting rod and voltage stabilizing nail tail portion boss, and voltage stabilizing nail connecting rod one end is fixed on valve
The bottom end face center of core, the voltage stabilizing nail connecting rod other end are fixedly connected with voltage stabilizing nail tail portion boss small end face center, voltage stabilizing nail tail portion
The large end face of boss downward and planar to spool bottom end face, and voltage stabilizing nail connecting rod, voltage stabilizing nail tail portion boss and spool it is coaxial
Setting.
Relative closure space is formed in throttle orifice and oil return opening voltage stabilizing pin structure periphery by voltage stabilizing pin structure so that opposite
Local pressure is promoted and counteracted by negative pressure caused by valve liquid stream in enclosure space, so as to reach to spool closing direction
Flow force compensation is conducive to the control of the working condition of spool.
The inserted valve is in-flow inserted valve.
The invention has the advantages that：
The present invention can compensate for in-flow inserted valve closing direction hydraulic power, and the spool for simplifying inserted valve controls and increases valve
The degree of compensation of closing direction hydraulic power suffered by spool can be adjusted in core stability allowance.
Description of the drawings
Fig. 1 is the tomograph of the embodiment of the present invention.
Fig. 2 is the structure size figure of the embodiment of the present invention.
Fig. 3 is original in-flow inserted valve fundamental diagram.
Fig. 4 is the fundamental diagram of the embodiment of the present invention.
Fig. 5 is the result data contrast curve of the embodiment of the present invention.
Fig. 6 is the falloff curve comparison diagram of the embodiment of the present invention.
Table 1 is the result data contrast table of the embodiment of the present invention.
In figure：1st, valve body, 2, valve pocket, 3, spool, 4, voltage stabilizing nail connecting rod, 5, voltage stabilizing nail tail portion boss, 6, throttle orifice, 7, negative
Intermediate pressure section, 8, relative closure space, 9, throttling section.
Specific embodiment
The invention will be further described with example below in conjunction with the accompanying drawings.
The embodiment of the present invention is as follows：
Using in-flow inserted valve, as depicted in figs. 1 and 2, including valve body 1, valve pocket 2, spool 3, voltage stabilizing nail connecting rod 4 and steady
Nail pressing tail portion boss 5, spool 3 is sleeved on through valve pocket 2 in valve body 1, and there are two hydraulic fluid ports for valve body 1, are oil inlet P and oil return opening respectively
T, oil inlet P are opened in 1 side wall of valve body, and oil return inlet T is opened in 1 bottom end face of valve body, and oil inlet P and oil return inlet T are through in valve body 1
Chamber channel connects.
Valve pocket 2 is sleeved in 1 bore passages of valve body, and spool 3 is sleeved on valve pocket 2.Valve pocket 2 is by inserting mode mounted on valve
Four throttle orifices 6 are circumferentially evenly distributed in internal portion, wherein valve pocket, spool 3 is mounted in the cylindrical hole inside valve pocket, is formed to slide and be matched
It closes.
The circumferential surface of 2 bottom of valve pocket is provided with the circumferentially spaced multiple throttle orifices 6 being uniformly arranged, and valve pocket 2 is close to oil return inlet T
Inner face inner edge be equipped with chamfering, chamfering with close to oil return inlet T 3 bottom end face outer rim of spool cooperation realization valve switch it is close
Envelope is equipped with voltage stabilizing pin structure in the bottom end face of spool 3.
Voltage stabilizing pin structure includes voltage stabilizing nail connecting rod 4 and voltage stabilizing nail tail portion boss 5, and voltage stabilizing, which is followed closely tail portion boss 5 and followed closely through voltage stabilizing, to be connected
Bar 4 is connected to the bottom end face of spool 3, and voltage stabilizing nail tail portion boss 5 is connect with spool 3 by voltage stabilizing nail connecting rod 4 and is integral, surely
4 one end of nail pressing connecting rod is fixed on the bottom end face center of spool 3, and it is convex that voltage stabilizing nail 4 other end of connecting rod is fixedly connected with voltage stabilizing nail tail portion
5 small end face center of platform, voltage stabilizing nail 5 small end of tail portion boss is face-up, i.e., upward, the big of tail portion boss 5 is followed closely in voltage stabilizing to the conical surface of boss
End face downward and planar to spool 3 bottom end face, and voltage stabilizing nail connecting rod 4, voltage stabilizing nail tail portion boss 5 and spool 3 be coaxially disposed.
The operation principle of present invention compensation in-flow inserting valve core closing direction hydraulic power is as follows：
The common in-flow inserted valve of structure as shown in Figure 3, no voltage stabilizing nail connecting rod 4 and voltage stabilizing nail tail portion boss 5：Valve body
Hydraulic fluid port there are two 1, is oil inlet P and oil return inlet T respectively；Valve pocket 2 is mounted on valve inner by inserting mode, wherein on valve pocket
Circumferential to be evenly distributed with four throttle orifices 6, spool 3 is mounted in the cylindrical hole inside valve pocket, and formation is slidably matched.Hydraulic oil is in spool 3
Accelerate at the throttling section 9 formed with chamfering, the high speed liquid flow after accelerating can generate a negative pressure region 7, negative pressure region 7
The hydraulic power F of an attraction, i.e. closing direction can be generated to spool 3, so as to increase the control difficulty of spool 3, reduces valve
The stability allowance of core 3 causes great interference to the working condition of spool.
The operation principle of voltage stabilizing of the present invention nail structure as shown in Figure 4, connecting rod 4 and voltage stabilizing are followed closely by increasing voltage stabilizing in spool
The spool of tail portion boss 5 is followed closely, in one relative closure space 8 of negative pressure region manufacture of restriction, the local pressure in the space
It is greatly promoted, counteracts negative pressure caused by high speed liquid flow, the hydraulic power of spool closing direction is reversely mended so as to reach
It repays, is conducive to the control of the working condition of spool.
By adjusting voltage stabilizing nail connecting rod radius R, voltage stabilizing nail length of connecting rod L, voltage stabilizing nail tail portion boss radius r, voltage stabilizing nail tail
Portion's inclination angle theta and voltage stabilizing nail tail portion boss thickness d can control flow force compensation effect.
The present embodiment has carried out simulation analysis, by the present embodiment in-flow inserted valve for having voltage stabilizing nail and without in voltage stabilizing nail
Streaming inserted valve carries out simulating, verifying under different opening and different flow, demonstrates voltage stabilizing nail for closing direction hydraulic power F
There is no any influence for the falloff curve of hydraulic valve with compensation effect and voltage stabilizing pin structure.
The present embodiment is using the method that hydraulic power is measured on experimental bench, utilizes CFD (computational fluid
Dynamics Fluid Mechanics Computations) simulation software emulated, hydraulic power F is directly obtained by simulation analysis, the specific steps are：
The fluid model in hydraulic valve is built in solidworks, mesh generation then is carried out to fluid model in ICEM, most
Grid model is imported in Fluent afterwards and carries out flow field simulation, the hydraulic power F suffered by spool can be measured after the completion of emulation.
The closing direction hydraulic power F of simulation result is with the result of variations relationship of flow as shown in table 1 and Fig. 5.
Table 1
Closing direction hydraulic power F when what Fig. 5 was represented has voltage stabilizing nail and followed closely without voltage stabilizing and the curved line relation with changes in flow rate.
By, as it can be seen that under same each flow, thering are the closing direction hydraulic power F ratios that voltage stabilizing is followed closely to be followed closely without voltage stabilizing in table 1 and Fig. 5
Closing direction hydraulic power F greatly reduce, realize the hydraulic power Contrary compensation to spool closing direction.
As shown in fig. 6, falloff curve comparison when having voltage stabilizing nail and being followed closely without voltage stabilizing, ordinate pressure differential therein are oil inlet
The difference of mouth P and the oil pressure of oil return inlet T, i.e. Δ P=p1-p2, horizontal axis represented through the flow Q of valve.Visible voltage stabilizing nail is to valve in figure
Falloff curve is almost no impact, therefore will not to the through-current capability of valve to closing direction flow force compensation using voltage stabilizing nail
It adversely affects.
Claims (4)
1. a kind of for compensating the voltage stabilizing pin structure of in-flow inserted valve closing direction hydraulic power, inserted valve includes valve body (1), valve
Set (2) and spool (3), valve body (1) are provided with oil inlet (P) and oil return opening (T), it is characterised in that：The week of valve pocket (2) bottom
Face is provided with the circumferentially spaced multiple throttle orifices (6) being uniformly arranged, and the valve pocket (2) is in the inner face close to oil return opening (T)
Edge is equipped with chamfering, and chamfering coordinates with spool (3) bottom end face outer rim close to oil return opening (T), set in the bottom end face of spool (3)
There is voltage stabilizing pin structure.
2. it is according to claim 1 a kind of for compensating the voltage stabilizing pin structure of in-flow inserted valve closing direction hydraulic power,
It is characterized in that：The voltage stabilizing pin structure includes voltage stabilizing nail connecting rod (4) and voltage stabilizing nail tail portion boss (5), voltage stabilizing nail connecting rod (4)
One end is fixed on the bottom end face center of spool (3), and voltage stabilizing nail connecting rod (4) other end is fixedly connected with voltage stabilizing nail tail portion boss (5)
Small end face center, bottom end face of the large end face downward and planar to spool (3) of tail portion boss (5) is followed closely in voltage stabilizing, and voltage stabilizing nail connects
Bar (4), voltage stabilizing nail tail portion boss (5) and spool (3) coaxial arrangement.
3. it is according to claim 1 a kind of for compensating the voltage stabilizing pin structure of in-flow inserted valve closing direction hydraulic power,
It is characterized in that：Relative closure space is formed in throttle orifice (6) and oil return opening (T) voltage stabilizing pin structure periphery by voltage stabilizing pin structure
(8) so that relative closure space (8) interior local pressure is promoted and counteracted by negative pressure caused by valve liquid stream, so as to reach
To the flow force compensation of spool closing direction, be conducive to the control of the working condition of spool.
4. it is according to claim 1 a kind of for compensating the voltage stabilizing pin structure of in-flow inserted valve closing direction hydraulic power,
It is characterized in that：The inserted valve is in-flow inserted valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309946.6A CN108167459A (en) | 2017-12-11 | 2017-12-11 | A kind of voltage stabilizing pin structure for being used to compensate in-flow inserted valve closing direction hydraulic power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309946.6A CN108167459A (en) | 2017-12-11 | 2017-12-11 | A kind of voltage stabilizing pin structure for being used to compensate in-flow inserted valve closing direction hydraulic power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108167459A true CN108167459A (en) | 2018-06-15 |
Family
ID=62524884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309946.6A Pending CN108167459A (en) | 2017-12-11 | 2017-12-11 | A kind of voltage stabilizing pin structure for being used to compensate in-flow inserted valve closing direction hydraulic power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167459A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026873A (en) * | 2018-08-08 | 2018-12-18 | 浙江大学 | Valve for compensating outer-flowing type inserted valve closing direction hydraulic power damps ring structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999005437A1 (en) * | 1997-07-25 | 1999-02-04 | Masco Corporation | Improved stem valve stopper |
| CN2524033Y (en) * | 2001-12-13 | 2002-12-04 | 浙江大学 | Low noise leading overflow valve |
| JP2005351605A (en) * | 2004-06-14 | 2005-12-22 | Daikin Ind Ltd | Expansion valve and refrigeration device |
| CN203023523U (en) * | 2012-12-12 | 2013-06-26 | 北汽福田汽车股份有限公司 | Valve |
| CN203532389U (en) * | 2013-11-20 | 2014-04-09 | 圣邦集团有限公司 | Two-way cartridge valve |
| CN106015149A (en) * | 2016-08-08 | 2016-10-12 | 浙江大学 | Vibration-reduction tail structure for eliminating reverse hydraulic power of valve core of one-way slide valve |
| CN106352100A (en) * | 2015-07-17 | 2017-01-25 | 株式会社鹭宫制作所 | Pressure operating valve and frozen cycle |
| CN206246704U (en) * | 2016-11-02 | 2017-06-13 | 中山市思源电器有限公司 | It is a kind of to eliminate the water proportioning valve uttered long and high-pitched sounds |
| CN106838362A (en) * | 2017-02-09 | 2017-06-13 | 浙江大学 | It is a kind of to fall structure for inserting the balance of valve core hydraulic power elimination |
-
2017
- 2017-12-11 CN CN201711309946.6A patent/CN108167459A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999005437A1 (en) * | 1997-07-25 | 1999-02-04 | Masco Corporation | Improved stem valve stopper |
| CN2524033Y (en) * | 2001-12-13 | 2002-12-04 | 浙江大学 | Low noise leading overflow valve |
| JP2005351605A (en) * | 2004-06-14 | 2005-12-22 | Daikin Ind Ltd | Expansion valve and refrigeration device |
| CN203023523U (en) * | 2012-12-12 | 2013-06-26 | 北汽福田汽车股份有限公司 | Valve |
| CN203532389U (en) * | 2013-11-20 | 2014-04-09 | 圣邦集团有限公司 | Two-way cartridge valve |
| CN106352100A (en) * | 2015-07-17 | 2017-01-25 | 株式会社鹭宫制作所 | Pressure operating valve and frozen cycle |
| CN106015149A (en) * | 2016-08-08 | 2016-10-12 | 浙江大学 | Vibration-reduction tail structure for eliminating reverse hydraulic power of valve core of one-way slide valve |
| CN206246704U (en) * | 2016-11-02 | 2017-06-13 | 中山市思源电器有限公司 | It is a kind of to eliminate the water proportioning valve uttered long and high-pitched sounds |
| CN106838362A (en) * | 2017-02-09 | 2017-06-13 | 浙江大学 | It is a kind of to fall structure for inserting the balance of valve core hydraulic power elimination |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026873A (en) * | 2018-08-08 | 2018-12-18 | 浙江大学 | Valve for compensating outer-flowing type inserted valve closing direction hydraulic power damps ring structure |
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Application publication date: 20180615 |
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| WD01 | Invention patent application deemed withdrawn after publication |