CN1067754C - Cam direct control main pressure-distribution valve device for water turbine speed regulator step motor - Google Patents
Cam direct control main pressure-distribution valve device for water turbine speed regulator step motor Download PDFInfo
- Publication number
- CN1067754C CN1067754C CN97116347A CN97116347A CN1067754C CN 1067754 C CN1067754 C CN 1067754C CN 97116347 A CN97116347 A CN 97116347A CN 97116347 A CN97116347 A CN 97116347A CN 1067754 C CN1067754 C CN 1067754C
- Authority
- CN
- China
- Prior art keywords
- speed regulator
- distribution valve
- main pressure
- water turbine
- cam
- 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
-
- 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
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to a device for controlling a main pressure-distribution valve in a water turbine speed regulator. An involute-shaped cam which is arranged on the shaft end of a stepping motor in the speed regulator is in compression joint with a driven bearing which is arranged on a needle plug, the needle plug can move up and down to control the pressure oil trend of the main pressure-distribution valve, and the control of a water turbine set is realized. The device solves the problems that an electric-liquid speed regulator is easy to clamp and block by oil stains, the speed regulator of the main pressure-distribution valve is controlled by adopting a feed screw nut driving mode and has slow response speed, and the mechanical wear is big. The device has the characteristics of high reliability, good quick operation and regulation quality, simple structure and hydraulic servo system simplification.
Description
The utility model relates to a kind of microcomputer-based hydro-turbine governor, particularly the device of microcomputer-based hydro-turbine governor step motor control main control valve.
In hydrogovernor transform electric is become the mechanical-hydraulic actuating signal, the most general used device is an electro-control converter.But because of it jam and greasy dirt blocking phenomenon often occur, the someone adopts stepper motor to realize this function by feed screw nut's transmission in recent years.And this device rotates a circle owing to motor, and nut can only move a pitch, and pilot servomotor or main control valve have certain stroke, thereby the speed of response slow motion, the attitude inferior quality.Because of feed screw nut's kind of drive, mechanical wear is bigger again, is easy to generate dead stroke, influences regulation quality, makes its application be subjected to certain restriction.
The purpose of this utility model provides and a kind ofly can replace electro-control converter, and can overcome feed screw nut's kind of drive, and the speed of response of bringing is slow, and dynamic quality is poor, easily produces the main control valve control gear of dead stroke defective.
The purpose of this utility model is achieved in that this device is by the stepper motor that is installed in the speed regulator
By the pressure oil trend of conduction mechanism control main control valve, the guiding servomotor is to realize the control to the water wheels unit.Its conduction mechanism is adorned a cam by axle head, and its outer face crimping is contained in the bearing composition that pin is held beyond the Great Wall, and the pin plug is contained on the main control valve.
The profile line of cam is the plane disk cam of involute shape.
Driven bearing and cam crimping are equipped with in the upper end of pin plug.
The utility model has the advantages that: owing to replaced electric liquid device, eliminated generation jam and oil circuit phenomenon of blocking, improved reliability, it is good to have quick-action, and speed of response is fast, the characteristics that regulation quality is good, this apparatus structure is simple, and the corresponding Hydrauservo System of having simplified.
Below in conjunction with description of drawings embodiment.
Fig. 1 is a schematic representation of the present utility model.
Fig. 2 is the parts drawing of cam of the present utility model.
The utility model is contained in the speed regulator, makes it under the control of microcomputer based regulator, by servomotor control hydraulic turbine generator group.
After driver is received microcomputer position control module signal, signal drive stepping motor 1 stepper motor, 1 takes place directly drive the cam that is the involute shape 2 that is loaded on its axle head again, cam 2 with the driven bearing 3 crimping rolling processes that are contained in pin plug 4 upper ends in, control is moved up and down to defeating urgent pin plug 4 by upward axis, thereby the pressure oil trend of control main control valve 5, guiding servomotor 6 is opened and is closed, to realize the purpose of control hydraulic turbine generator group.
Claims (3)
1, a kind of stepper motor cam direct control main pressure-distribution valve device of hydrogovernor, form by stepper motor, conduction mechanism, main control valve, it is characterized in that passing will mechanism for to adorn a cam at the stepper motor axle head, its outer face is crimped on pin and holds beyond the Great Wall, and the pin plug is contained on the main control valve.
2, by the described cam direct control main pressure-distribution valve device for water turbine speed regulator step motor of claim 1, the profile line that it is characterized in that cam is an involute.
3, by the described cam direct control main pressure-distribution valve device for water turbine speed regulator step motor of claim 1, it is characterized in that driven bearing and cam crimping are equipped with in the upper end of pin plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97116347A CN1067754C (en) | 1997-08-18 | 1997-08-18 | Cam direct control main pressure-distribution valve device for water turbine speed regulator step motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97116347A CN1067754C (en) | 1997-08-18 | 1997-08-18 | Cam direct control main pressure-distribution valve device for water turbine speed regulator step motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1182850A CN1182850A (en) | 1998-05-27 |
| CN1067754C true CN1067754C (en) | 2001-06-27 |
Family
ID=5173781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97116347A Expired - Fee Related CN1067754C (en) | 1997-08-18 | 1997-08-18 | Cam direct control main pressure-distribution valve device for water turbine speed regulator step motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067754C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4619337B2 (en) * | 2006-08-30 | 2011-01-26 | 株式会社フジキン | Cam type valve |
| CN102777315A (en) * | 2012-08-22 | 2012-11-14 | 哈尔滨电机厂有限责任公司 | Pure manual control hydraulic closed-loop device of speed controller |
-
1997
- 1997-08-18 CN CN97116347A patent/CN1067754C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1182850A (en) | 1998-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |