CN2319650Y - Camshaft directly controlling master pressure dividing valve of water turbine speed variator stepping motor - Google Patents
Camshaft directly controlling master pressure dividing valve of water turbine speed variator stepping motor Download PDFInfo
- Publication number
- CN2319650Y CN2319650Y CN 97250678 CN97250678U CN2319650Y CN 2319650 Y CN2319650 Y CN 2319650Y CN 97250678 CN97250678 CN 97250678 CN 97250678 U CN97250678 U CN 97250678U CN 2319650 Y CN2319650 Y CN 2319650Y
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- CN
- China
- Prior art keywords
- utility
- water turbine
- main pressure
- stepping motor
- model
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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.)
- Expired - Fee Related
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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a device for controlling main pressure distributing valves in water turbine regulators. An involute cam installed at the shaft end of a stepping motor in a speed regulator is installed on a driven bearing on a needle valve through compression connection to make the needle piston move from top to bottom to control the flowing direction of the pressure oil of the main pressure distributing valve, so that the purpose of controlling a water wheel machine set is realized. The utility model solves the problems that electro hydraulic speed regulators are easy to block and jam by oil stain, speed regulators adopting a screw rod nut driving mode to control main pressure distributing valves have low responding speeds, and the mechanical abrasion is large. The utility model has the advantages of high reliability, favorable speed property and regulating quality, simple structure, simplification of hydraulic servo systems, etc.
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 the pressure oil that this device is controlled main control valve (5) by the stepper motor (1) that is installed in the speed regulator by conduction mechanism moves towards, and guiding servomotor (6) is to realize the control to the water wheels unit.Its conduction mechanism is adorned a cam (2) by axle head, and its outer face crimping is contained in the bearing (3) of pin plug (4) upper end to be formed, and pin plug (4) is contained on the main control valve (5).
The profile line of cam (2) is the plane disk cam of involute shape.
Driven bearing (3) and cam (2) crimping are equipped with in the upper end of pin plug (4).
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) takes place, stepper motor (1) directly drives the cam that is the involute shape (2) that is loaded on its axle head again, cam (2) with driven bearing (3) the crimping rolling process that is contained in pin plug (4) upper end in, control is moved up and down to defeating urgent pin plug (4) by upward axis, thereby the pressure oil of control main control valve (5) trend, guiding servomotor (6) Kai Heguan is 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, stepper motor (1) is arranged, conduction mechanism, main control valve (5) is formed, it is characterized in that conduction mechanism is to adorn a cam (2) at stepper motor (1) axle head, its outer face is crimped on pin plug (4) upper end, and pin plug (4) is contained on the main control valve (5).
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 (2) is an involute.
3,, it is characterized in that driven bearing (3) and cam (2) crimping are equipped with in the upper end of pin plug (4) by claim 1 or 2 described cam direct control main pressure-distribution valve device for water turbine speed regulator step motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250678 CN2319650Y (en) | 1997-08-18 | 1997-08-18 | Camshaft directly controlling master pressure dividing valve of water turbine speed variator stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250678 CN2319650Y (en) | 1997-08-18 | 1997-08-18 | Camshaft directly controlling master pressure dividing valve of water turbine speed variator stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319650Y true CN2319650Y (en) | 1999-05-19 |
Family
ID=33957181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97250678 Expired - Fee Related CN2319650Y (en) | 1997-08-18 | 1997-08-18 | Camshaft directly controlling master pressure dividing valve of water turbine speed variator stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319650Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173725B (en) * | 2007-09-26 | 2010-06-02 | G20工程有限公司 | Piston type ratio regulating valve control device and ratio regulating valve using the same |
| CN103047310A (en) * | 2012-12-17 | 2013-04-17 | 浙江联宜电机股份有限公司 | Gear clutch device of electrically powered wheelchair |
| CN103185298A (en) * | 2011-12-30 | 2013-07-03 | 海洋王（东莞）照明科技有限公司 | Microspur adjusting device and luminaire adopting same |
| CN103511716A (en) * | 2012-06-20 | 2014-01-15 | 常州乐士雷利电机有限公司 | Drain valve |
-
1997
- 1997-08-18 CN CN 97250678 patent/CN2319650Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173725B (en) * | 2007-09-26 | 2010-06-02 | G20工程有限公司 | Piston type ratio regulating valve control device and ratio regulating valve using the same |
| CN103185298A (en) * | 2011-12-30 | 2013-07-03 | 海洋王（东莞）照明科技有限公司 | Microspur adjusting device and luminaire adopting same |
| CN103185298B (en) * | 2011-12-30 | 2017-05-03 | 海洋王（东莞）照明科技有限公司 | Microspur adjusting device and luminaire adopting same |
| CN103511716A (en) * | 2012-06-20 | 2014-01-15 | 常州乐士雷利电机有限公司 | Drain valve |
| CN103047310A (en) * | 2012-12-17 | 2013-04-17 | 浙江联宜电机股份有限公司 | Gear clutch device of electrically powered wheelchair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |