CN109899334A - A kind of hydrogovernor rotary valve main control valve - Google Patents
A kind of hydrogovernor rotary valve main control valve Download PDFInfo
- Publication number
- CN109899334A CN109899334A CN201910123973.7A CN201910123973A CN109899334A CN 109899334 A CN109899334 A CN 109899334A CN 201910123973 A CN201910123973 A CN 201910123973A CN 109899334 A CN109899334 A CN 109899334A
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- China
- Prior art keywords
- spool
- valve
- main control
- control valve
- hydrogovernor
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
A kind of hydrogovernor rotary valve main control valve of the invention, including spool, fixed valve pocket, shaft coupling and the servo motor for driving valve core rotation around axis rotation；Spool is equipped with through flow hole, and valve pocket is equipped with tetra- valve openings of P/T/A/B；Servo motor drives valve core rotation by shaft coupling, and when spool is at center, tetra- valve openings of P/T/A/B are mutually isolated, flows without oil liquid；When spool rotates clockwise, P is connected to by through flow hole with B, and T is connected to A, then realizes and close direction with oil；When spool rotates counterclockwise, P is connected to by the through flow hole with A, and T is connected to B, then realizes evolution to oil.Rotational action is directly translated into the direction for oil liquid and the variation of flow by the present invention, the rotational angle of original total travel ± 720 ° is narrowed down to ± 45 °, quick-action improves 16 times；It present invention saves the motor action time, realizes that high speed commutates, improves master with response, improve regulation performance.
Description
Technical field
The present invention relates to a kind of hydrogovernor rotary valve main control valves, belong to hydrogovernor machinery hydraulic system
Technical field.
Background technique
Main control valve is the power stage hydraulic amplifier of hydrogovernor machinery hydraulic system, it passes through electro-control converter
Or electric signal conversion is zoomed into hydraulic pressure signal respective direction, being proportional to, meeting servomotor traffic requirement by motor,
Control servomotor opens or closes.
Main control valve pushes servomotor and then pushes hydroturbine water intake mouth guide vane, to realize the control to hydroturbine water intake flow
System, to achieve the purpose that control rotational speed of water turbine.At present there are two types of main control valve driving methods common in industry, one is
Use ratio valve/servo proportion pushes hydraulic oil that main dispensing spool is pushed to move axially, secondly to use servo motor/step
Driving ball-screw that rotation is changed into straight-line displacement into motor drives main dispensing spool to move axially.
Disadvantage is that: 1) servo motor/stepper motor drive ball-screw rotation are changed into straight-line displacement band
The problems such as moving main dispensing spool and moving axially causes rotation angle to be spent greatly, and action response is slow, overshoot is big；2) main dispensing spool axis
Mechanical structure to movement is complex, and requirement on machining accuracy is high, and leakage rate is difficult to grasp, and the spool of metal material is usually deposited
The wear problem after longtime running；3) servo proportion system cost is higher.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, a kind of hydrogovernor rotary valve master is provided with pressure
Valve, action response is fast, rotational angle is small, structure is simple, not easy to wear, at low cost.
A kind of hydrogovernor rotary valve main control valve of the invention, including the spool, fixed around axis rotation
Valve pocket, shaft coupling and the servo motor for driving valve core rotation；Spool and valve pocket are carried out using flat and smooth contact surface
Sealing；The spool is equipped with through flow hole, and the valve pocket is equipped with tetra- valve openings of P/T/A/B, and P is main control valve pressure oil valve
Hole, T are main control valve oil return valve hole, and A is to open direction controlling oil valve hole, and B is to close direction controlling oil valve hole；The servo motor is logical
It crosses shaft coupling and drives valve core rotation, when the spool is at center, tetra- valve openings of P/T/A/B are mutually isolated, without oil liquid
Flowing；When the spool rotates clockwise, P is connected to by the through flow hole with B, and T is connected to A, then realizes and close direction with oil；Work as institute
It states spool to rotate counterclockwise, P is connected to by the through flow hole with A, and T is connected to B, then realizes evolution to oil.
Above-mentioned main control valve be equipped be suitable for the spool of rotary valve main control valve answer device and for the rotation to spool
The limiting device that gyration is limited；Main control valve in actual use, the case where there are control system power loss.Work as control
When system power loss processed, main control valve should keep in position, i.e., do not open the state being not related to, prevent the main controlled device servomotor matched from continuing
The accident of on or off occurs.Device passes through spring-force driven dual on spool during the spool is multiple, when the servo motor operation valve
Core rotation, needs to overcome the effect of spring force, when the servo motor power loss, electromagnetic torque is lost, then the spool is in spring
It is rapidly returned to middle position under the action of power, realizes function in power loss runback；The limiting device is bolted on main with valve body
On the track of upper cover plate.Limiting device can effectively adjust evolution to, close direction controlling oil liquid maximum stream flow.
The rotational angle range of above-mentioned servo motor are as follows: position ± 45 ° rotate in the spool, and spool is located at middle position, real
Existing O-shaped cut-off position；The spool rotates in the forward direction, and realizes parallel conducting function；The spool reversely rotates, and realizes cross-conduction machine
Energy.
Bigger with middle position deflection angle, flow is bigger；The spool is located at middle position, then flow is 0.
Above-mentioned spool is worked with valve pocket using rotation mode.
Above-mentioned spool and valve pocket use ceramic material.
Above-mentioned servo motor and spool coaxial direction move.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being:
The present invention replaces slide valve technology using rotary valve technology, valve core rotation is directly driven with servo motor, by rotational action
It is directly translated into the direction for oil liquid and the variation of flow, the rotational angle of original total travel ± 720 ° is narrowed down to ± 45 °, speed
Dynamic property improves 16 times.The characteristic that servo motor low-angle is accurately adjusted is played simultaneously, has been saved the motor action time, realizes high speed
Commutation improves main with response, improvement regulation performance.Simultaneously use ceramic cartridge valve pocket technology, improve spool wearability and
Corrosion resistance is conducive to improve durability of product, maintains leakage rate in the reasonable scope, improves speed-regulating system reliability, section
Save maintenance cost.
Detailed description of the invention
Fig. 1 is the basic schematic diagram of rotary valve main control valve of the invention；
Fig. 2 is the main structure chart of rotary valve main control valve of the invention；
Fig. 3 is the Section A-A figure of Fig. 2；
Fig. 4 is rotary valve main control valve structural schematic diagram of the invention；
Fig. 5 is the Section A-A figure of Fig. 4；
Fig. 6 is the perspective view of rotary valve main control valve of the invention；
Each label in figure: dress during servo motor 1, shaft coupling 2, spool 3, valve pocket 4, bearing 5, valve body 6, flange 7, spool are multiple
Set 8, limiting device 9.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
Referring to Fig. 1-Fig. 6, a kind of hydrogovernor rotary valve main control valve of the invention, including servo motor 1, spool
3, valve pocket 4；Servo motor 1 is for driving 3 rotational action of spool, and spool 3, valve pocket 4 are worked using rotation mode, spool 3
Ceramic material is used with valve pocket 4；Spool 3 is sealed with valve pocket 4 using flat and smooth contact surface.Servo motor 1 drives valve
3 rotational action of core, motor and 3 coaxial direction of spool move.Using the spool 3 of ceramic material, valve pocket 4, spool 3 turns around axle center
Dynamic, valve pocket 4 is fixed, and tetra- valve openings of P/T/A/B that spool 3 is connected on valve pocket 4 after rotating by through flow hole on spool 3 are realized
The direction of oil stream switches and flow adjustment.It is realized in 3 runback of spool using spring block mode, spool is realized using block mode
The limitation of 3 rotational angles.
The present invention replaces slide valve technology using rotary valve technology, and 3 turns of spool that rotary valve master matches directly are driven with servo motor 1
It is dynamic, rotational action is directly translated into the direction for oil liquid and the variation of flow, by the rotational angle of original total travel ± 720 °
± 45 ° are narrowed down to, quick-action improves 16 times.The characteristic that 1 low-angle of servo motor is accurately adjusted is played simultaneously, has saved motor
Make the time, realize that high speed commutates, improves master with response, improve regulation performance.Simultaneously using the spool 3 of ceramics, valve pocket 4, mention
The wearability and corrosion resistance of high spool 3 are conducive to improve durability of product, maintain leakage rate in the reasonable scope, improve
Speed-regulating system reliability saves maintenance cost.
The characteristic that 1 low-angle of servo motor is accurately adjusted is played simultaneously, the motor action time has been saved, has realized high quick change
To, it improves to lead and matches response, improvement regulation performance.Simultaneously using the spool 3 of ceramics, 4 technology of valve pocket, the wear-resisting of spool 3 is improved
Property and corrosion resistance, be conducive to improve durability of product, maintain leakage rate in the reasonable scope, improve speed-regulating system it is reliable
Property, save maintenance cost.
Spool 3 and valve pocket 4 use ceramic material, the function that ceramic material has hardness big, wear-resistant, anti-jamming.Spool 3
It is sealed with valve pocket 4 using smooth contact facial plane, 3 material of spool is ceramics, since spool 3,4 surface of valve pocket are hard
Degree is higher than the hardness of impurity in oil liquid, and common granule foreign can't cause to damage to 3 valve pocket 4 of spool.
In the prior art, two kinds is largely divided into the drive form of hydrogovernor main control valve: one be use than
The mode that example valve/servo proportion pushes hydraulic oil that the main spool matched is pushed to move axially, secondly for using servo motor/
Stepper motor drives ball-screw to lead the mode that the spool matched moves axially for straight-line displacement drive is changed into.In side
In case 1, servo motor/stepper motor drives ball-screw that rotation is changed into straight-line displacement and drives the main axial shifting of dispensing spool progress
It is dynamic, it will lead to motor rotation angle and spend greatly, motor needs to adjust in the angle of middle position ± 720 °, and spool is from closing standard-sized sheet
Time is up to 3-4 seconds, and action response is slow, will cause the big control effect of overshoot, leads to the overshoot that is switched on, and zero load cannot stablize,
The problems such as Load Regulation parameter is exceeded, this is insupportable in the adjusting of hydrogovernor；In scheme 2, servo-ratio
Example valve system higher cost, common servo proportion is all import brand, and the special purpose driver that needs to arrange in pairs or groups works.Servo
Proportioning valve arrives the control chamber at main dispensing spool both ends with oil, and main dispensing spool is realized the switching of function by pushing.Main dispensing spool is axially transported
Dynamic mechanical structure is complex, and requirement on machining accuracy is high, and leakage rate is difficult to grasp, and the spool of metal material is usually present length
Wear problem after phase operation.
By analysis it is recognised that the main match system for the axial movement that common servo proportion controls and stepping electricity
The main match system of machine/servo motor driving ball-screw, all there is a problem of intrinsic.The present invention is to utilize 1 structure of servo motor
It is simple and reliable, it is given full play to the characteristics of fine-tuning, reduces the adjusting movement range of motor, reaches raising control speed,
Reduce the purpose of response time.The axial movement for abandoning conventional hydrogovernor main control valve spool, be changed to motor directly or
Main dispensing spool rotation is indirectly driven to realize function switching, mechanical structure is simpler, simplifies using the seal form of plane contact
Manufacturing process requirement.It is creative to replace metal material to manufacture main dispensing spool and valve pocket 4 using ceramic material, more wear-resisting,
Oil rub resistance.
Correspondingly, a kind of hydrogovernor rotary valve main control valve of the invention, as shown in figure 4, specifically including following
Structure: device 8, limiting device 9, bearing 5, spool 3, valve pocket 4, valve body 6, flange 7 during servo motor 1, shaft coupling 2, spool are multiple.
Servo motor 1 is rotated by the directly band movable valve plug 3 of shaft coupling 2, and rotational action is directly translated into the side for oil liquid
To and flow variation, the rotational angle of original total travel ± 720 ° is narrowed down to ± 45 °, quick-action improves 16 times.It sends out simultaneously
The characteristic that 1 low-angle of servo motor is accurately adjusted is waved, has been saved the motor action time, realization high speed commutates, and improves main with sound
It answers, improves regulation performance.Simultaneously using the spool 3 of ceramics, valve pocket 4, the wearability and corrosion resistance of spool 3 are improved, favorably
In improving durability of product, leakage rate is maintained in the reasonable scope, improve speed-regulating system reliability, save maintenance cost.
The present invention overcomes the low-response of current hydrogovernor main control valve, overshoot is big, structure is complicated, difficulty of processing
Greatly, easy to wear, easy bite, it is at high cost the problems such as, have many advantages, such as response rapidly, structure is simple, resistance to greasy dirt, low in cost, can
The performance that hydrogovernor main control valve is adjusted generally is improved, cost is reduced.The rotary valve ceramics master that the present invention describes is with pressure
Valve can preferably substitute previous conventional method, have biggish dissemination.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of hydrogovernor rotary valve main control valve, which is characterized in that including the spool (3) around axis rotation, fixation
Motionless valve pocket (4), shaft coupling (2) and the servo motor (1) for driving spool (3) to rotate；The spool (3) and valve pocket
(4) it is sealed using flat and smooth contact surface；
The spool (3) is equipped with through flow hole, and the valve pocket (4) is equipped with tetra- valve openings of P/T/A/B, and P is main control valve pressure
Oil valve hole, T are main control valve oil return valve hole, and A is to open direction controlling oil valve hole, and B is to close direction controlling oil valve hole；
The servo motor (1) is rotated by shaft coupling (2) band movable valve plug (3), when the spool (3) is at center, P/
Tetra- valve openings of T/A/B are mutually isolated, flow without oil liquid；When the spool (3) rotates clockwise, the through flow hole connects P and B
Logical, T is connected to A, then realizes and close direction with oil；When the spool (3) rotates counterclockwise, P is connected to by the through flow hole with A, T and
B connection then realizes evolution to oil.
2. hydrogovernor rotary valve main control valve according to claim 1, which is characterized in that on the main control valve
Limiting device (9) equipped with the multiple middle device (8) of spool and for being limited the rotation angle of spool (3)；The spool is multiple
Middle device (8) on spool (3), when the servo motor (1) operation spool (3) rotation, needs to overcome by spring-force driven dual
The effect of spring force, when the servo motor (1) power loss, electromagnetic torque is lost, then the spool (3) is under spring force
It is rapidly returned to middle position, realizes function in power loss runback；The limiting device (9) is bolted on master with valve upper cover plate
On track.
3. hydrogovernor rotary valve main control valve according to claim 1, which is characterized in that the servo motor
(1) rotational angle range are as follows: position ± 45 ° rotate in the spool (3), and spool (3) is located at middle position, realizes O-shaped cut-off position；
The spool (3) rotates in the forward direction, and realizes parallel conducting function；The spool (3) reversely rotates, and realizes cross-conduction function.
4. hydrogovernor rotary valve main control valve according to claim 3, which is characterized in that with middle position deflection angle
Bigger, flow is bigger；The spool (3) is located at middle position, then flow is 0.
5. hydrogovernor rotary valve main control valve according to claim 1, which is characterized in that the spool (3) with
Valve pocket (4) is worked using rotation mode.
6. hydrogovernor rotary valve main control valve according to claim 1, which is characterized in that the spool (3) with
Valve pocket (4) uses ceramic material.
7. hydrogovernor rotary valve main control valve according to claim 1, which is characterized in that the servo motor
(1) it is moved with spool (3) coaxial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123973.7A CN109899334A (en) | 2019-02-19 | 2019-02-19 | A kind of hydrogovernor rotary valve main control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123973.7A CN109899334A (en) | 2019-02-19 | 2019-02-19 | A kind of hydrogovernor rotary valve main control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109899334A true CN109899334A (en) | 2019-06-18 |
Family
ID=66945163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910123973.7A Pending CN109899334A (en) | 2019-02-19 | 2019-02-19 | A kind of hydrogovernor rotary valve main control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109899334A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090382A (en) * | 1993-01-25 | 1994-08-03 | 太平洋精工株式会社 | Air conditioner four-way change-over valve and service valve |
| JPH1083842A (en) * | 1996-09-11 | 1998-03-31 | Meidensha Corp | Zinc-bromine battery |
| JPH11141706A (en) * | 1997-11-10 | 1999-05-28 | Saginomiya Seisakusho Inc | Rotary disk valve |
| CN1308197A (en) * | 2000-02-10 | 2001-08-15 | 株式会社不二工机 | Four-way converting valve |
| CN2457408Y (en) * | 2000-12-08 | 2001-10-31 | 阎洪昌 | New electric control valve |
| CN2878829Y (en) * | 2005-11-30 | 2007-03-14 | 竺明君 | Manual rotary valve |
| CN201723786U (en) * | 2010-06-23 | 2011-01-26 | 宁波索诺工业自控设备有限公司 | Three-position four-way ceramic manual rotation valve |
| CN202469079U (en) * | 2011-12-02 | 2012-10-03 | 杭州九阳豆业有限公司 | Electric reversing valve applied to beverage processing equipment |
| CN207111992U (en) * | 2017-07-20 | 2018-03-16 | 广东万家乐燃气具有限公司 | A kind of two four-way ceramics reversal valves |
-
2019
- 2019-02-19 CN CN201910123973.7A patent/CN109899334A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090382A (en) * | 1993-01-25 | 1994-08-03 | 太平洋精工株式会社 | Air conditioner four-way change-over valve and service valve |
| JPH1083842A (en) * | 1996-09-11 | 1998-03-31 | Meidensha Corp | Zinc-bromine battery |
| JPH11141706A (en) * | 1997-11-10 | 1999-05-28 | Saginomiya Seisakusho Inc | Rotary disk valve |
| CN1308197A (en) * | 2000-02-10 | 2001-08-15 | 株式会社不二工机 | Four-way converting valve |
| CN2457408Y (en) * | 2000-12-08 | 2001-10-31 | 阎洪昌 | New electric control valve |
| CN2878829Y (en) * | 2005-11-30 | 2007-03-14 | 竺明君 | Manual rotary valve |
| CN201723786U (en) * | 2010-06-23 | 2011-01-26 | 宁波索诺工业自控设备有限公司 | Three-position four-way ceramic manual rotation valve |
| CN202469079U (en) * | 2011-12-02 | 2012-10-03 | 杭州九阳豆业有限公司 | Electric reversing valve applied to beverage processing equipment |
| CN207111992U (en) * | 2017-07-20 | 2018-03-16 | 广东万家乐燃气具有限公司 | A kind of two four-way ceramics reversal valves |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |
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| RJ01 | Rejection of invention patent application after publication |