CN1601166A - Unit for driving electrodynamic type valve - Google Patents
Unit for driving electrodynamic type valve Download PDFInfo
- Publication number
- CN1601166A CN1601166A CN 03151189 CN03151189A CN1601166A CN 1601166 A CN1601166 A CN 1601166A CN 03151189 CN03151189 CN 03151189 CN 03151189 A CN03151189 A CN 03151189A CN 1601166 A CN1601166 A CN 1601166A
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- CN
- China
- Prior art keywords
- magnetic clutch
- handwheel
- type valve
- electrodynamic type
- clutch
- 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.)
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- Mechanically-Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
This invention discloses a kind of electrodynamic valve driving equipment including handle driving equipment, electrodynamic driving equipment, centrifugal braking equipment and electrical control gear. This electrodynamic driving equipment is connected to the first electromagnetic clutch; the clutch is connected to the gear driving equipment. The handle equipment includes handwheel, the handwheel is connected to the second electromagnetic clutch, the second electromagnetic clutch is connected to the gear driving equipment. The helix braking equipment that can auto-braking is set between the handwheel and the second electromagnetic clutch. This invention uses helix braking equipment to realize auto-locking, it overcomes the shortcomings of low efficiency by the endless screw.
Description
Technical field
The present invention relates to a kind of valve actuator, particularly relate to a kind of gate in waters or electrodynamic type valve actuator of butterfly valve controlled.
Background technique
At present, the drive unit that regulating gate opens and closes, its movement system all has the automatic locking function.Normally worm and worm wheel are used for reducing gear, use the motor control starting gate, reach desired aperture after motor stop, utilizing the automatic locking function of worm screw to make gate can not produce decline because of deadweight.The shortcoming of this valve actuator is, because the transmission efficiency of worm screw is low, therefore requires the moment of torsion of its drive motor to want big, in addition, when running into urgency or having a power failure, use operated by handwheel not only require great effort and also the time long.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electrodynamic type valve actuator at existing the problems referred to above in the prior art, it not only has the automatic locking function, and the moment of torsion of drive motor is reduced, and laborsaving saving time when manually-operable, reliable rapidly.
For solving the problems of the technologies described above, electrodynamic type valve actuator of the present invention comprises manual driving device, Vidacare corp, centrifugal braking device and electric control equipment, this Vidacare corp is connected with first magnetic clutch, this first magnetic clutch is connected with gear drive, wherein, manual driving device comprises handwheel, this handwheel is connected with second magnetic clutch, this second magnetic clutch also is connected with gear drive, is provided with the spiral braking device that can realize auto lock between the handwheel and second magnetic clutch.
The present invention adopts the spiral braking device to realize auto lock, has overcome the lower shortcoming of transmission efficiency that worm drive exists, thus can adopt the little motor of capacity, also time saving and energy saving when manually-operable.
Description of drawings
Accompanying drawing is the structural representation of electrodynamic type valve actuator of the present invention.
Embodiment
As shown in the figure, electrodynamic type valve actuator of the present invention comprises manual driving device, Vidacare corp, centrifugal braking device and electric control equipment, this Vidacare corp comprises motor 4, this motor 4 is connected with first magnetic clutch 6 by driving gear, this first magnetic clutch 6 be connected with the gear drive that driving wheel 2 grades constitute by intermediate gear 3, manual driving device comprises handwheel 5, this handwheel 5 is connected with second magnetic clutch 8, this second magnetic clutch 8 also is connected with gear drive, is provided with the spiral braking device 7 that can realize auto lock between the handwheel 5 and second magnetic clutch 8.
Be described in detail below in conjunction with the operation and the course of action of accompanying drawing electrodynamic type valve actuator of the present invention.
(1) electric operating.As shown in the figure, depress operating switch 14, contactor 11,12 is connected, the contacting that the control motor of motor reversible controller 13 is rotated in the forward.Contactor 11 is connected back control first magnetic clutch 6 and is engaged (this moment, first magnetic clutch 6 had excitation).Contactor 12 connections are then controlled second magnetic clutch 8 and are in separated state (this moment, second magnetic clutch 8 had excitation).At this moment, motor 4 is rotated in the forward, and drives intermediate gear 3 and driving wheel 2 rotations by first magnetic clutch 6, and the direction of opening towards gate drives load 1.Certainly, if make the contacting of the control motor counterrotating of motor reversible controller 13, then motor 4 counterrotatings, and drive load 1 towards the direction that gate closes.When carrying out electric operating,,, operator are safe from danger even handwheel 5 rotations are also just dallied because second magnetic clutch 8 is in separated state.When gate is positioned at fully open position or full close position, the limit switch (not shown) that is installed in this position will be cut off the power supply of contactor 11,12 by pressing, and then first magnetic clutch 6 is separated, and second magnetic clutch 8 engages.Cut off the power supply of motor 4 simultaneously, the driving of load 1 stops.Were it not for first magnetic clutch 6, when limit switch works, motor 4 outages.At this moment, the inertia of motor 4 can clash with the braking of load 1, the inertia energy that the rotating part of motor 4 keeps be in order to discharge timely, will make the stress of various piece of transmission system very high, so require the various piece of transmission system should possess serviceability to this.The present invention is owing to adopted first clutch 6, and when limit switch worked, first clutch 6 was cut off, and motor 4 is separated with transmission system, thus the rising that eliminates stress.
(2) locking state.When first magnetic clutch 6 and second magnetic clutch 8 become no excitation, the former is in the off state of separation, the latter is in the working state of joint, the gravity of bearing load 1 makes intermediate gear 3 rotations by driving wheel 2, and this rotating force makes 7 runnings of spiral braking device by second magnetic clutch 8.Therefore this spiral braking device 7 makes load 1 keep motionless from load side locking rotating force, and gate can be locked when aperture arbitrarily.
(3) manual state.Above-mentioned locking state is that the running of the power (gravity) of load 1 side is prevented from through spiral braking device 7, and the operation of 5 pairs of loads 1 of handwheel whenever all is possible, along with the rotation of handwheel 5 to any direction, the locking state of spiral braking device 7 is disengaged, and the handwheel side can transmit rotating force with the load 1 of load side combination.Just in case the electric operating instruction makes motor 4 rotations in manually operated process, because first magnetic clutch 6 and 8 interlockings of second magnetic clutch, second magnetic clutch 8 becomes dissengaged positions, and handwheel and transmission system are separated, also are safe therefore.
In the present embodiment, second magnetic clutch 8 adopts friction clutch, utilizes the quiet sassafras moment of torsion that rubs of its appropriateness, and when manually-operable, the excessive generation when transshipping can play a protective role because of exerting oneself.
(4) deadweight descends.During the gate open state, also be that load 1 is when accumulating potential energy according to weight.When pressing emergency stop switch 15, contactor 12 is connected, and second magnetic clutch 8 is cut off, and the locking state of 7 pairs of loads 1 of spiral braking device is disengaged.The energy of accumulating on 1 at load is by driving wheel 2, and intermediate gear 3 grades discharge, and makes load 1 decline of conducting oneself with dignity.Rate of descent in the speed that is limited in being limited, can prevent that dangerous situation from taking place by centrifugal braking device 10 controls.Deadweight descends, and except being operated by emergency stop switch 15, the signal that the detecting instrument 16 that constitutes according to earthquake degree meter, flowmeter or power failure detection device sends also can carry out automatically, realizes above-mentioned course of action.The present invention is provided with a manual rod 9 at second magnetic clutch 8, operate this manual rod 9 and can cut off second magnetic clutch 8 equally, the decline of conducting oneself with dignity, when having a power failure or power supply guarantee that gate reliably closes when breaking down.Generally, the urgency that needs deadweight to descend is many, and manual rod of the present invention has only one, and operation can be not wrong yet when being in an emergency.
The operation that above-described electric operating, locking state, manual state, deadweight descend can be switched.
When valve actuator of the present invention is used to control butterfly valve, be to rely on to drive valve and accumulate the driving that the elastic force energy is implemented load.
Because the present invention adopts spiral braking device 7 to realize auto lock, overcome the lower shortcoming of transmission efficiency that worm drive exists, thus can adopt the little motor of capacity, also time saving and energy saving when manually-operable.Really reached purpose of the present invention.
Claims (4)
1. electrodynamic type valve actuator, comprise manual driving device, Vidacare corp, centrifugal braking device and electric control equipment, this Vidacare corp is connected with first magnetic clutch, this first magnetic clutch is connected with gear drive, it is characterized in that: manual driving device comprises handwheel, this handwheel is connected with second magnetic clutch, this second magnetic clutch also is connected with gear drive, is provided with the spiral braking device that can realize auto lock between the handwheel and second magnetic clutch.
2. electrodynamic type valve actuator as claimed in claim 1 is characterized in that: described second magnetic clutch is provided with and can cuts off the manual rod that this second magnetic clutch descends gate utilization deadweight.
3. electrodynamic type valve actuator as claimed in claim 1 is characterized in that: described second magnetic clutch adopts friction clutch.
4. electrodynamic type valve actuator as claimed in claim 1 is characterized in that: described first magnetic clutch is an excitation start shape magnetic clutch, and described second magnetic clutch is no excitation start shape magnetic clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03151189 CN1601166A (en) | 2003-09-25 | 2003-09-25 | Unit for driving electrodynamic type valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03151189 CN1601166A (en) | 2003-09-25 | 2003-09-25 | Unit for driving electrodynamic type valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1601166A true CN1601166A (en) | 2005-03-30 |
Family
ID=34659879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03151189 Pending CN1601166A (en) | 2003-09-25 | 2003-09-25 | Unit for driving electrodynamic type valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1601166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110663161A (en) * | 2017-04-07 | 2020-01-07 | 欧玛里斯特有限责任两合公司 | Servo drive comprising a braking device |
-
2003
- 2003-09-25 CN CN 03151189 patent/CN1601166A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110663161A (en) * | 2017-04-07 | 2020-01-07 | 欧玛里斯特有限责任两合公司 | Servo drive comprising a braking device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |