KR20110130675A - Restoration device of feedback spring - Google Patents
Restoration device of feedback spring Download PDFInfo
- Publication number
- KR20110130675A KR20110130675A KR1020100050136A KR20100050136A KR20110130675A KR 20110130675 A KR20110130675 A KR 20110130675A KR 1020100050136 A KR1020100050136 A KR 1020100050136A KR 20100050136 A KR20100050136 A KR 20100050136A KR 20110130675 A KR20110130675 A KR 20110130675A
- Authority
- KR
- South Korea
- Prior art keywords
- feedback spring
- recovery
- groove
- feedback
- spring
- Prior art date
Links
Images
Classifications
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Springs (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
Abstract
Description
The present invention relates to a feedback spring recovery device, and more particularly, to a feedback spring recovery device for restoring a feedback spring bent by a spool of a servovalve to its original state.
In general, the servo valve generates a magnetic force when an electrical signal is applied to the torque motor coil to act on the actuator of the pilot stage. This action produces an inclination of the armature / flapper within the operating range of the flexure tubed.
When the flapper is inclined and the distance to the nozzle is close, the flow path to the nozzle is blocked and the pressure is increased, and this pressure causes the driving force to be generated at the end of the spool.
When the spool is activated, the flow path opens from the supply side port to one control port and at the same time returns to the tank port from the other control port.
The reaction force of the feedback spring is generated by the displacement of the spool, and the return force is applied to the amateur / flapper.
The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.
It is an object of the present invention to provide a feedback spring recovery device for restoring a feedback spring when it is deformed by frequent driving of a servovalve.
The present invention in order to achieve the above object; A seating part provided on the support part and on which a torque motor having a feedback spring is mounted; And it is mounted to the mounting groove formed in the support portion, and provides a feedback spring recovery device comprising a recovery unit forcibly bending the feedback spring.
The seating portion is formed in the support portion, the motor seating groove portion in which the torque motor is seated; And an insertion groove formed in the motor seating groove and into which the feedback spring is inserted.
The insertion groove portion is characterized in that it has a size corresponding to the diameter of the feedback spring.
The recovery unit recovery body portion is mounted to the mounting groove; And a recovery groove formed in the recovery body and into which the feedback spring is inserted.
The recovery unit is characterized in that it comprises an aluminum material.
The recovery groove is characterized in that larger than the diameter of the feedback spring.
It characterized in that it further comprises a cover portion for covering the support portion.
The cover part is characterized in that it comprises a transparent plastic material.
The feedback spring recovery device according to the present invention has an effect of recovering the feedback spring when it is bent due to the long time use of the servovalve.
The feedback spring recovery device according to the present invention has an effect of preventing a magnetic force loss of a torque motor having a feedback spring by unfolding a feedback spring having a recovery portion including copper or aluminum.
In the feedback spring recovery device according to the present invention, since the size of the recovery groove portion formed in the recovery portion is larger than the diameter of the feedback spring, the recovery portion can recover excessive bending of the feedback spring.
The feedback spring recovery device according to the present invention has an effect of recovering minute bending of the feedback spring when the feedback spring is inserted into the insertion groove for a long time since the size of the insertion groove formed in the seating portion corresponds to the diameter of the feedback spring. .
1 is a view schematically showing a feedback spring recovery apparatus according to an embodiment of the present invention.
2 is a view showing a state of use of the recovery unit in the feedback spring recovery apparatus according to an embodiment of the present invention.
3 is a cross-sectional view schematically illustrating a state in which a feedback spring is inserted and restored in a recovery unit in a feedback spring recovery device according to an embodiment of the present invention.
4 is a cross-sectional view schematically illustrating a state in which a torque motor is seated in a seating portion in a feedback spring recovery device according to an embodiment of the present invention.
Hereinafter, with reference to the accompanying drawings will be described an embodiment of a feedback spring recovery apparatus according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout the specification.
1 is a view schematically showing a feedback spring recovery device according to an embodiment of the present invention, Figure 2 is a view showing the use state of the recovery unit in the feedback spring recovery device according to an embodiment of the present invention, Figure 3 is 4 is a cross-sectional view schematically illustrating a state in which a feedback spring is inserted and restored in a recovery unit in a feedback spring recovery device according to an embodiment of the present invention, and FIG. 4 is a torque motor in the feedback spring recovery device according to an embodiment of the present invention. It is sectional drawing which shows schematically the state mounted on a seating part.
1 to 4, the feedback
The
The
The
The
The
At this time, the size of the
The
Accordingly, when the bending of the
The feedback
The
The
On the other hand, the supporting
Referring to the operation of the feedback spring recovery device according to an embodiment of the present invention having the above structure as follows.
When the
Since the
The worker restores the bending of the
When the correction of the deflection through the
At this time, the
Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.
Therefore, the true technical protection scope of the present invention will be defined by the claims below.
10: support portion 20: seating portion
21: seating groove 22: insertion groove
30: recovery unit 31: recovery body
32: recovery groove 40: torque motor
41: feedback spring 50: cover
Claims (8)
A seating part provided on the support part and on which a torque motor having a feedback spring is mounted; And
Feedback spring restoring apparatus is mounted to the mounting groove formed in the support portion, characterized in that it comprises a recovery for bending the feedback spring forcibly.
A motor seating groove part formed on the support part and on which the torque motor is seated; And
The feedback spring recovery device is formed in the motor seating groove portion, characterized in that it comprises an insertion groove into which the feedback spring is inserted.
The insertion groove portion feedback spring recovery device, characterized in that having a size corresponding to the diameter of the feedback spring.
A recovery body part seated on the mounting groove; And
The feedback spring recovery device is formed in the recovery body portion, characterized in that it comprises a recovery groove in which the feedback spring is inserted.
The recovery spring recovery device, characterized in that made of an aluminum material.
And the recovery groove has a larger diameter than the diameter of the feedback spring.
Feedback spring recovery device further comprises a cover portion for covering the support portion.
Feedback cover recovery device characterized in that the cover portion comprises a transparent plastic material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100050136A KR101225776B1 (en) | 2010-05-28 | 2010-05-28 | Restoration device of feedback spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100050136A KR101225776B1 (en) | 2010-05-28 | 2010-05-28 | Restoration device of feedback spring |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110130675A true KR20110130675A (en) | 2011-12-06 |
KR101225776B1 KR101225776B1 (en) | 2013-01-23 |
Family
ID=45499332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20100050136A KR101225776B1 (en) | 2010-05-28 | 2010-05-28 | Restoration device of feedback spring |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101225776B1 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970005596Y1 (en) * | 1994-04-27 | 1997-06-07 | 황양민 | Badness electronic device correcting apparatus |
KR100976549B1 (en) * | 2008-06-03 | 2010-08-17 | 주식회사 티엔씨 | Device for correcting position of pin |
-
2010
- 2010-05-28 KR KR20100050136A patent/KR101225776B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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KR101225776B1 (en) | 2013-01-23 |
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E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |