CN108571614A - A kind of spring reset Electric Actuator drive mechanism and its working method - Google Patents
A kind of spring reset Electric Actuator drive mechanism and its working method Download PDFInfo
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- CN108571614A CN108571614A CN201810759566.0A CN201810759566A CN108571614A CN 108571614 A CN108571614 A CN 108571614A CN 201810759566 A CN201810759566 A CN 201810759566A CN 108571614 A CN108571614 A CN 108571614A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims abstract description 49
- 238000004146 energy storage Methods 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 86
- 229910052742 iron Inorganic materials 0.000 claims description 43
- 230000006835 compression Effects 0.000 claims description 27
- 238000007906 compression Methods 0.000 claims description 27
- 230000003068 static effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor 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
- F16H—GEARING
- F16H33/00—Gearings based on repeated accumulation and delivery of energy
- F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
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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
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
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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
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
- F16K31/048—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means with torque limiters
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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
- F16K31/44—Mechanical actuating means
- F16K31/48—Mechanical actuating means actuated by mechanical timing-device, e.g. with dash-pot
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to a kind of spring reset Electric Actuator drive mechanism and its working methods, the spring reset Electric Actuator drive mechanism includes brake motor, freewheel clutch, main shaft, spring energy-storage mechanism, the output shaft of the brake motor coordinates through the freewheel clutch and the spindle drive, so that the brake motor can drive the rotation of the main shaft, the valve rod transmission of the main shaft and valve to coordinate；The spring energy-storage mechanism includes energy-storaging spring, which coordinates with the spindle drive, so that when the main axis, energy-storaging spring deforms upon simultaneously for valve rod rotation, carries out energy stores；When brake motor dead electricity, energy-storaging spring resets, driving spindle rotates backward, valve rod is driven to rotate backward, realize valve reset, when main shaft stops operating, the rotation of brake motor output shaft carries out clutch by freewheel clutch, continue inertia rotation, avoids stopping leading to motor output shaft gear impact failure suddenly because of main shaft.
Description
Technical field
The present invention relates to Electric Actuator technical field of auxiliary equipment, especially a kind of spring reset Electric Actuator transmission
Structure and its working method.
Background technology
Actuator plays a very important role in present-day procedure automation, especially Electric Actuator, also known as
Be electric operator, system structure is very simple, and the positional number of stopping is more and control accuracy is high, and flexibility is strong, especially
It is the combination acquisition electrically operated valve of Electric Actuator and valve, has a wide range of applications in industrial pipeline field, electronic execution machine
The rotation of structure control valve valve rod or locking.However in extreme circumstances, as in the case of fully powered-off, valve is needed voluntarily to close
Close or be reset to reset condition.Therefore a kind of Electric Actuator simple in structure, that actuatable valve door resets under power blackout situation is provided
Drive mechanism is the technical issues of those skilled in the art are badly in need of solving.
Invention content
The technical problem to be solved in the present invention is to provide a kind of spring reset Electric Actuator simple in structure, stable
Drive mechanism and its working method.
In order to solve the above technical problems, spring reset Electric Actuator drive mechanism provided by the invention, including brake electricity
Machine, freewheel clutch, main shaft, spring energy-storage mechanism, the output shaft of the brake motor is through the freewheel clutch and the master
Axis transmission cooperation, so that the brake motor can drive the rotation of the main shaft, the valve rod transmission of the main shaft and valve to coordinate；
The spring energy-storage mechanism includes energy-storaging spring, which coordinates with the spindle drive, so that when the main axis,
Energy-storaging spring deforms upon simultaneously for valve rod rotation, carries out energy stores；When brake motor dead electricity, energy-storaging spring resets, and drives
Dynamic main shaft rotates backward, and valve rod is driven to rotate backward, and realizes valve reset, when main shaft stops operating, brake motor is defeated
The rotation of shaft carries out clutch by freewheel clutch, continues inertia rotation, avoids stopping leading to motor output shaft suddenly because of main shaft
Gear impact failure.
Further, the inner ring transmission of the output shaft of the brake motor and the freewheel clutch coordinates, it is described surmount from
The outer ring of clutch coordinates with the spindle drive；Or the output shaft of the brake motor and the outer ring of the freewheel clutch are driven
Cooperation, the inner ring of the freewheel clutch coordinate with the spindle drive, so that the brake motor can drive the main shaft to turn
It is dynamic, while clutch action can be formed between brake motor output shaft and main shaft.
Further, the energy-storaging spring is scroll spring, and spring energy-storage mechanism further includes turbine ring, and the main shaft is set in
In the scroll spring, the scroll spring is set in the turbine ring, the inside starting end of the scroll spring and institute
Spindle drive cooperation is stated, the outside end of the scroll spring coordinates with transmission on the inside of the turbine ring, so that the main axis
When scroll spring can be driven to rotate, carry out energy storage.
Further, spring energy-storage mechanism further includes worm screw, is meshed on the outside of the worm screw and the turbine ring, the snail
When bar rotates, driving turbine ring rotation is pre-tightened so that scroll spring is tightened or loosened.
Further, the worm screw coordinates with the turbine ring self-locking, and the worm screw can drive the turbine ring to rotate, institute
Stating turbine ring cannot drive the worm screw to rotate, and turbine ring moves when scroll spring being avoided to reset, and influences reset effect.
Further, the energy-storaging spring is compression helical spring, and spring energy-storage mechanism further includes gear and piston type tooth
Item, the gear are socketed on the main shaft, and one end of the piston type rack is meshed with the gear, the piston type rack
The transmission of piston end and the compression helical spring coordinate so that when the main shaft driven gear rotation, piston type can be driven
Rack stretches or compresses the compression helical spring, carries out energy storage.
Further, the brake motor further includes rotor assembly, magnechuck, fixed disk, brake iron pan, spring leaf, institute
The top for stating fixed disk and rotor assembly is fixedly linked, and the lower face of the brake iron pan is fixed through spring leaf and the fixed disk
It is connected, the magnechuck and the brake iron pan clearance fit, the power brake source are electrically connected with the magnechuck, so that
The magnechuck generates magnetism after being powered, brake iron pan is sucked by magnechuck, and spring leaf, which is stretched, generates deformation, and brake iron
Disk, fixed disk, rotor assembly are locked；Magnetic after magnechuck power-off to disappear, spring leaf resets under elastic reaction, brake iron
Disk is detached with magnechuck, and brake iron pan, fixed disk, rotor assembly are no longer locked.
Further, spring energy-storage mechanism further includes the left limit bolt and right limit for limiting the main axis angle
Bolt, the bottom end setting protrusion of the main shaft, so that protrusion and left limit bolt or right limit bolt phase when the main axis
Contact, limits the rotational angle of main shaft by left limit bolt or right limit bolt.
Further, through the fixed center hole of setting, the top center of the rotor assembly is set at the center of the fixed disk
Connecting shaft is set, the axially disposed positive stop key in side of the connecting shaft, the inner wall of the fixed center hole is axially disposed and institute
State the compatible keyway of positive stop key, when assembly, the connecting shaft was inserted into the fixed center hole, described in the positive stop key is inserted into
Keyway so that the fixed disk can be rotated with rotor assembly.
Further, the center protrusion setting annular convex platform of the fixed disk upper surface, the centrally disposed of iron pan of braking
With the fixation center hole of annular convex platform socket cooperation, the upper surface of the fixed disk also sets up multiple connecting holes, described
The brake lower face of iron pan is arranged multiple connecting pins compatible with the connecting hole, described in the annular convex platform insertion of when assembly
Brake iron pan centre bore, and the connecting pin is inserted into the connecting hole so that brake iron pan can be rotated with fixed disk.
Further, the centrally disposed magnechuck compatible with the brake iron pan center hole shape of the magnechuck
Centre bore, so that the magnechuck is arranged in a ring.
Further, the spring leaf is butterfly spring or waveform spring, which is coaxially disposed with the magnechuck,
Lower face of the both ends of spring leaf respectively with the upper surface of the fixed disk, the iron pan that brakes is fixedly linked, so that the electromagnetism is inhaled
Absorption is formed to brake iron pan when disk is powered, spring leaf, which is stretched, generates deformation, and brake iron pan is axially moveable.
Further, the piston type rack is arranged in pairs the both sides of gear, front end and the tooth of the piston type rack
Wheel is meshed, and the compression helical spring is 4, and the tail end of each piston type rack is socketed 2 compression helical springs respectively,
So that two-piston formula rack is symmetricly set on the both sides of main shaft, 4 compression helical springs are symmetricly set on other the two of main shaft
Side, structure is more balanced, and stability is high.
The working method of above-mentioned spring reset Electric Actuator drive mechanism, includes the following steps：
A, when the motor power of brake motor obtains electric, power brake source dead electricity, the output shaft of brake motor rotate and drive surmount from
The inner ring of clutch, outer ring rotate synchronously so that main axis, main shaft drive valve rod rotation, realize flow-rate adjustment；Main shaft turns
It is dynamic to drive scroll spring rotation or compression helical spring is driven to move the energy storage for realizing energy-storaging spring.
B, after valve rod turns to required position, the motor power dead electricity of brake motor, power brake source obtain electric, brake electricity
The output shaft of machine is locked so that inner ring, outer ring, the main shaft of freewheel clutch are static, complete to valve rod and energy-storaging spring
Locking.
C, when the motor power of brake motor and power brake source are in power failure state simultaneously, energy-storaging spring, which resets, drives main shaft
It rotates backward, outer ring is rotated backward with inner ring or outer ring is rotate in same direction with inner ring when resetting stopping to main shaft, freewheel clutch
Inner ring and outer ring detaches, and motor output shaft is rotated further and main shaft is non-interference because of inertia.
The technique effect of invention：（1）The spring reset Electric Actuator drive mechanism of the present invention, compared with the existing technology,
By the way that spring energy-storage device is arranged on freewheel clutch transmission cooperation, main shaft between brake motor and main shaft so that brake motor
It may make main axis or locking when normal operation, while energy-storaging spring energy storage can be driven or locking is carried out to energy-storaging spring；（2）
When brake motor power supply appearance exception causes motor power, power brake source while dead electricity, energy-storaging spring resets actuatable valve gate valve
Bar rotates backward, simultaneously because the presence of freewheel clutch, can avoid the reversion of main shaft influences the output shaft of brake motor, especially
It is the output shaft in brake motor when there is dead electricity suddenly in rotation process, the output shaft of brake motor is in effect of inertia
Still rotate forward, and energy-storaging spring reset drives main shaft rotates backward, and the non-interference of the two is realized by freewheel clutch, has
Effect avoids output shaft and gear from being damaged because of inertia impact；（3）It is matched using scroll spring and turbine ring, and is aided with worm screw,
The preload of scroll spring can be achieved；Simultaneously because scroll spring does not stress when initial installation, installation is facilitated, in detaching products
Scroll spring can completely be discharged, operational risk is reduced with negative direction rotary worm；（4）Using gear, piston type rack and
Compression helical spring is as spring energy-storage mechanism, and simple in structure, performance is stablized；（5）Brake motor uses to obtain electric brake, dead electricity
The design of clutch adsorbs with the rotor assembly of lock brake motor brake iron pan by magnechuck, and magnechuck is in ring
Shape is arranged, and adsorption area is big, and uniform force operates steadily；（6）The combination of freewheel clutch and spring reverse motion so that main
Axis is under rotary state when complete dead electricity, and the inner ring and outer ring rotation direction of freewheel clutch is on the contrary, form clutch；Main shaft is quiet
Only under state when complete dead electricity, the inner ring and outer ring of freewheel clutch is with main axis, after main shaft stops operating, freewheel clutch
Inner ring and outer ring separation, form clutch, output shaft is rotated further by inertia, avoids damage to the output shaft and tooth of brake motor
Wheel.
Description of the drawings
Invention is further described in detail with reference to the accompanying drawings of the specification：
Fig. 1 is the structural schematic diagram of the spring reset Electric Actuator drive mechanism in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of the spring energy-storage mechanism in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of the spring energy-storage mechanism in the embodiment of the present invention 2；
Fig. 4 is the structural schematic diagram of the spring reset Electric Actuator drive mechanism in the embodiment of the present invention 3；
Fig. 5 is the axial arrangement schematic diagram of the fixation disk of the present invention；
Fig. 6 is the cross-sectional view of the fixation disk of the present invention；
Fig. 7 is the axial arrangement schematic diagram of the brake iron pan of the present invention；
Fig. 8 is the axial arrangement schematic diagram of the magnechuck of the present invention.
In figure：Brake motor 1, output shaft 11, power brake source 12, motor power 13, freewheel clutch 2, inner ring 20, outside
Circle 21, the first transmission shaft 22, second driving shaft 23, first gear 24, main shaft 3, second gear 31, protrusion 32, right limit bolt
33, left limit bolt 34, spring energy-storage mechanism 4, scroll spring 41, turbine ring 42, worm screw 43, gear 44, left piston formula rack
45, right piston formula rack 46, compression helical spring 47, shell 48, magnechuck 5, magnechuck centre bore 51, rotor assembly
6, fixed disk 7, annular convex platform 71, fixed center hole 72, keyway 73, connecting hole 74, installation screw 75, brake iron pan 8, brake
Iron pan centre bore 81, spring leaf 82, connecting pin 83.
Specific implementation mode
Embodiment 1
As shown in Figure 1, the spring reset Electric Actuator drive mechanism of the present embodiment, including brake motor 1, freewheel clutch 2,
Main shaft 3, spring energy-storage mechanism, brake motor 1 include shell, stator module, rotor assembly 6, output shaft 11, magnechuck 5, consolidate
Price fixing 7, brake iron pan 8, spring leaf 82, stator assembly and rotor assembly 6 are placed in shell, motor power 13 is for controlling rotor
The rotation of component 6；Output shaft 11 is fixed at the bottom center of rotor assembly 6, and output shaft 11 stretches out shell setting, rotor
The centrally disposed connecting shaft in top of component 6, the axially disposed positive stop key in side of connecting shaft, as shown in Figure 5 and Figure 6, fixed disk 7
Center through the fixed center hole 72 of setting, the axially disposed key compatible with positive stop key of inner wall of fixed center hole 72
Slot 73, the center protrusion setting annular convex platform 71 of 7 upper surface of fixed disk, as shown in fig. 7, the centrally disposed and ring of brake iron pan 8
The upper surface of the fixation center hole 81 of the socket cooperation of shape boss 71, fixed disk 7 also sets up 3 connecting holes 74 and 3 installation spiral shells
3 connecting pins 83 compatible with connecting hole 74 are arranged in the lower face in hole 75, brake iron pan 8, and the setting of spring leaf 82 is in brake iron
Between the lower face of disk 8 and the upper surface of fixed disk 7, magnechuck 5 is fixed at the top in shell, power brake source 12 with
Magnechuck 5 is electrically connected, as shown in figure 8, the centrally disposed electricity compatible with brake 81 shape of iron pan centre bore of magnechuck 5
Magnetic center hole 51, so that magnechuck 5 is arranged in a ring；Connecting shaft is inserted into fixed center hole 72, positive stop key when assembly
It is inserted into keyway 73, and is threadedly coupled with rotor assembly 6 across installation screw 75 using screw so that fixed disk 7 can be with rotor set
Part 6 rotates；Annular convex platform 71 is inserted into brake iron pan centre bore 81, and connecting pin 83 is inserted into connecting hole 74, and the both ends of spring leaf 82
The lower face with the upper surface of fixed disk 7, the iron pan 8 that brakes is fixedly linked respectively so that brake iron pan 8 can be rotated with fixed disk 7；
Magnechuck 5 is arranged in the top of brake iron pan 8, and magnechuck 5 and brake 8 clearance fit of iron pan, power brake source 12 and electricity
Magnetic-disc 5 is electrically connected, so that magnechuck 5 generates magnetism after being powered, brake iron pan 8 is sucked by magnechuck 5,82 quilt of spring leaf
It stretches and generates deformation, brake iron pan 8 is axially moveable, and is oriented to by connecting pin 83 so that brake iron pan 8, turns fixed disk 7
Sub-component 6 is locked；Magnechuck 5 is magnetic after powering off to disappear, and spring leaf 82 resets under elastic reaction, pulls brake iron pan 8
It is detached with magnechuck 5, brake iron pan 8, fixed disk 7, rotor assembly 6 are no longer locked, free to rotate.
It is fixedly linked with the inner ring 20 of freewheel clutch 2 after the stretching shell of output shaft 11 of brake motor 1, so that output shaft
11 can drive the inner ring 20 of freewheel clutch 2 to rotate, as shown in Fig. 2, spring energy-storage mechanism 4 includes energy-storaging spring, second gear
31, center and the main shaft 3 of second gear 31 are fixedly linked, and second gear 31 is meshed with the outer ring 21 of freewheel clutch 2, with
The outer ring 21 and the transmission of main shaft 3 for making freewheel clutch 2 coordinate, i.e. the output shaft of the inner ring 20 and brake motor 1 of freewheel clutch 2
11 transmission cooperations, outer ring 21 coordinate with the transmission of main shaft 3；Main shaft 3 and the valve rod transmission of valve coordinate, so that brake motor 1 can drive
Dynamic main shaft 3 rotates；Energy-storaging spring is scroll spring 41, as shown in figure 3, spring energy-storage mechanism further includes turbine ring 42, worm screw 43,
Main shaft 3 is set in scroll spring 41, and scroll spring 41 is set in turbine ring 42, the inside of scroll spring 41 starting end with
3 lateral wall of main shaft is fixedly linked, and the outside end of the scroll spring 41 and the madial wall of turbine ring 42 are fixedly linked, worm screw 43 with
The outside of turbine ring 42 is meshed, so that main shaft 3 can drive the rotation of scroll spring 41 when rotating, carries out energy storage, 43 turns of worm screw
When dynamic, turbine ring 42 can be driven to rotate, to drive scroll spring 41 to rotate, be pre-tightened.
Spring energy-storage mechanism 4 further includes the left limit bolt 34 and right limit bolt 33 for limiting 3 rotational angle of main shaft,
The bottom end setting protrusion 32 of main shaft 3, so that protrusion 32 connects with left limit bolt 34 or right limit bolt 33 when main shaft 3 rotates
It touches, the rotational angle of main shaft 3 is limited by left limit bolt 34 or right limit bolt 33；Left limit bolt 34 and main shaft 3
Line, the angle between right limit bolt 33 and the line of main shaft 3 be 120 °, the rotation angle to limit main shaft 3 is no more than
120°。
In use, the output shaft 11 of brake motor 1 coordinates through freewheel clutch and the transmission of main shaft 3, brake motor 1 is controllable
The rotation of main shaft 3, scroll spring 41 deforms simultaneously for valve rod rotation, carries out energy stores, when 1 dead electricity of brake motor,
Scroll spring 41 resets, and driving spindle 3 rotates backward, and valve rod is driven to rotate backward, and realizes valve reset, and brake motor
1 output shaft 11 is isolated by freewheel clutch 2, avoids rotating backward for main shaft 3 mutually dry with the output shaft of brake motor 1 11
It relates to.
Coordinate preferably, worm screw 43 and turbine ring 42 are self-locking, worm screw 43 can the rotation of unidirectional drive turbine ring 42, keep away
Exempt from turbine ring 43 when scroll spring 41 resets to move, i.e., the lead angle of worm screw 43 is less than the equivalent of the engagement wheel between cog of turbine ring 43
Angle of friction.
Preferably, spring leaf 82 is butterfly spring or waveform spring, the both ends of spring leaf 82 are upper with fixed disk 7 respectively
End face, brake iron pan 8 lower face be fixedly linked so that magnechuck 4 be powered when to brake iron pan 8 formed absorption, spring leaf
82, which are stretched, generates deformation, and brake iron pan 8 is axially moveable, it is ensured that locking effect.
Embodiment 2
On the basis of embodiment 1, there is following variation in the spring reset Electric Actuator drive mechanism of the present embodiment：Accumulation of energy bullet
Spring is compression helical spring 47, as shown in figure 3, spring energy-storage mechanism further includes gear 44 and the left piston formula tooth that is arranged in pairs
Item 45, right piston formula rack 46, gear 44 is socketed on main shaft 3, left piston formula rack 45, right piston formula rack 46 front end with
Gear 44 is meshed, compression helical spring 47 be 4, left piston formula rack 45, right piston formula rack 46 piston end difference
It is socketed 2 compression helical springs 47, the front end of each compression helical spring 47 and corresponding left piston formula rack 45, right piston formula
The socket cooperation of rack 46, tail end and the shell 48 of compression helical spring 47 are fixedly linked to form support so that left piston formula
Rack 45, right piston formula rack 46 are symmetricly set on the both sides of main shaft 3, and 4 compression helical springs 47 are symmetricly set on main shaft 3
Other both sides, structure is more balanced, and stability is high.
In use, the output shaft 11 of brake motor 1 coordinates through freewheel clutch 2 and the transmission of main shaft 3, brake motor 1 is controllable
The rotation of main shaft 3 processed so that gear 44 drives piston type rack to move so that compression helical spring simultaneously for valve rod rotation
47 deform, and carry out energy stores, and when 1 dead electricity of brake motor, compression helical spring 47 resets, and driving spindle 3 reversely turns
It is dynamic, it drives valve rod to rotate backward, realizes valve reset, and the output shaft 11 of brake motor 1 is isolated by freewheel clutch, is kept away
Exempt from rotating backward for main shaft 3 to interfere with the output shaft of brake motor 1 11.
Embodiment 3
On the basis of embodiment 1, there is following variation in the spring reset Electric Actuator drive mechanism of the present embodiment：
As shown in figure 4, the spring reset Electric Actuator drive mechanism of the present embodiment further includes the transmission of the first transmission shaft 22, second
Axis 23, first gear 24, the first transmission shaft 22 coordinate through first gear 24 and the transmission of brake motor output shaft 11, and the first transmission
Axis 22 is meshed with the outer ring 21 of freewheel clutch 2, and second driving shaft 23 and the inner ring 20 of freewheel clutch 2 are fixedly linked, the
Two transmission shafts 23 are meshed with second gear 31, i.e. the outer ring 21 of freewheel clutch 2 and the transmission of output shaft 11 of brake motor 1 is matched
Close, the transmission of inner ring 20 and main shaft 3 coordinates so that brake motor 1 can drive second driving shaft 23 to rotate, by second driving shaft 23 with
The transmission cooperation of main shaft 3, while clutch action can be formed between the first transmission shaft 22 and second driving shaft 23.
Embodiment 4
On the basis of embodiment 2, there is following variation in the spring reset Electric Actuator drive mechanism of the present embodiment：
The spring reset Electric Actuator drive mechanism of the present embodiment further includes the first transmission shaft 22, second driving shaft 23, first
Gear 24, the first transmission shaft 22 coordinate through first gear 24 and the transmission of brake motor output shaft 11, and the first transmission shaft 22 with it is super
The outer ring 21 of more clutch 2 is meshed, and second driving shaft 23 and the inner ring 20 of freewheel clutch 2 are fixedly linked, second driving shaft
23 are meshed with second gear 31, i.e. the outer ring 21 of freewheel clutch 2 and the transmission of output shaft 11 of brake motor 1 coordinates, inner ring
20 coordinate with the transmission of main shaft 3, so that brake motor 1 can drive second driving shaft 23 to rotate, are passed by second driving shaft 23 and main shaft 3
Dynamic cooperation, while clutch action can be formed between the first transmission shaft 22 and second driving shaft 23.
Embodiment 5
The working method of spring reset Electric Actuator drive mechanism described in embodiment 1, includes the following steps：
A, the motor power 12 of brake motor 1 electric, 13 dead electricity of power brake source when, the output shaft 11 of brake motor 1 turns clockwise
It is dynamic, drive the inner ring 20 of freewheel clutch 2, outer ring 21 to rotate clockwise, second gear 31, main shaft 3 rotate counterclockwise so that main
Axis 3 drives valve rod to rotate counterclockwise, and realizes flow-rate adjustment；The rotation of main shaft 3 drives scroll spring 41 to rotate counterclockwise realization
The energy storage of scroll spring 41.
B, after valve rod turns to required position, 12 dead electricity of motor power of brake motor 1, power brake source 13 must be electric,
The output shaft 11 of brake motor 1 is locked so that the more inner ring 20 of clutch 2, outer ring 21, second gear 31,3 remains stationary of main shaft
State completes the locking to valve rod and scroll spring 41.
C, in use, there are the risks of dead electricity for brake motor 1, specifically in two kinds of situation, one is brake motor 1
It is obtained under electric, 13 power failure state of power brake source in motor power 12, i.e., valve rod is in just in rotary state, brake motor 1
Unexpected dead electricity, i.e. motor power 12, power brake source 13 while dead electricity, the output shaft 11 of brake motor 1 is under effect of inertia at this time
It still keeping rotating clockwise, the inner ring 20 of freewheel clutch 2 is rotated clockwise with output shaft 11, until effect of inertia disappears,
And scroll spring 41 loses restriction and resets, driving spindle 3 rotates clockwise so that valve rod rotates clockwise, 3 band of main shaft
Dynamic second gear 31 rotates clockwise, the outer ring of freewheel clutch 2 21 rotates counterclockwise, with the rotation direction of inner ring 20 on the contrary,
So that forming clutch action between main shaft 3 and output shaft 11, main shaft 3 rotates backward the output that can not be transferred to brake motor 1
Axis 11 avoids impacting brake motor 1, and main shaft 3 turns to protrusion 32 when being in contact with left limit bolt 34, scroll spring
41 releases completely, and main shaft 3 is stopped by left limit bolt 34 so that main shaft 3, second gear 31 are static, complete valve
It resets.
D, the second is brake motor 1 is in 12 dead electricity of motor power, power brake source 13 obtains under electricity condition, i.e., at valve rod
In locking under stationary state, 1 unexpected dead electricity of brake motor, i.e. motor power 12, power brake source 13 while dead electricity, brake is electric at this time
The output shaft 11 of machine 1 and 20 remains stationary of inner ring of freewheel clutch 2, and scroll spring 41 loses restriction and resets, driving master
Axis 3 rotates clockwise so that valve rod rotates clockwise, and main shaft 3 drives second gear 31 to rotate clockwise, second gear 31
The output shaft 11 of the outer ring 21 of freewheel clutch 2, the inner ring 20 of freewheel clutch 2, brake motor 1 is driven to rotate counterclockwise, it is main
Axis 3 turns to protrusion 32 when being in contact with left limit bolt 34, the release completely of scroll spring 41, and by left limit bolt 34 to master
Axis 3 is stopped so that main shaft 3 is static, completes valve reset；At this time the output shaft 11 of brake motor 1 under effect of inertia according to
So maintain rotate counterclockwise, inner ring 20 with brake motor 1 output shaft 11 rotate, outer ring 21 with 3 remains stationary of main shaft, surmount from
The inner ring 20 of clutch 2 and outer ring 21 detach, until inertia completely disappears, the output shaft 11 of brake motor 1 is static, can avoid emergency stop
Cause the damage of 1 output shaft 11 of brake motor；The presence of freewheel clutch 2 so that valve can reset rapidly, but brake motor 1
Output shaft 11 will not stop operating immediately, protection is formd to the output shaft 11 of brake motor 1.
Embodiment 6
The working method of spring reset Electric Actuator drive mechanism described in embodiment 3, includes the following steps：
A, the motor power 12 of brake motor 1 electric, 13 dead electricity of power brake source when, the output shaft 11 of brake motor 1 turns clockwise
It is dynamic, drive first gear 24, the first transmission shaft 22 to rotate counterclockwise, freewheel clutch 2, second driving shaft 23 rotate clockwise,
Second gear 31, main shaft 3 rotate counterclockwise so that main shaft 3 drives valve rod to rotate counterclockwise, and realizes flow-rate adjustment；Main shaft 3
Rotation drives scroll spring 41 to rotate counterclockwise the energy storage for realizing scroll spring 41.
B, after valve rod turns to required position, 12 dead electricity of motor power of brake motor 1, power brake source 13 must be electric,
The output shaft 11 of brake motor 1 is locked so that first gear 24, the first transmission shaft 22, freewheel clutch 2, second driving shaft 23,
Second gear 31,3 remains stationary state of main shaft complete the locking to valve rod and scroll spring 41.
C, in use, there are the risks of dead electricity for brake motor 1, specifically in two kinds of situation, one is brake motor 1
It is obtained under electric, 13 power failure state of power brake source in motor power 12, i.e., valve rod is in just in rotary state, brake motor 1
Unexpected dead electricity, i.e. motor power 12, power brake source 13 while dead electricity, the output shaft 11 of brake motor 1 is under effect of inertia at this time
It still keeps rotating clockwise, first gear 24, the first transmission shaft 22 rotate counterclockwise, and drive the outer ring 21 of freewheel clutch 2
It rotates clockwise, scroll spring 41 loses restriction and resets, and is rotated clockwise by 41 driving spindle 3 of scroll spring so that valve
Valve rod rotates clockwise, and main shaft 3 drives second gear 31 to rotate clockwise, and second gear 31 drives second driving shaft 23 and surmounts
The inner ring 20 of clutch 2 rotates counterclockwise, and inner ring 20 is opposite with the rotation direction of outer ring 21 so that second driving shaft 23 and first
Clutch action is formed between transmission shaft 22, main shaft 3 rotates backward the output shaft 11 that can not be transferred to brake motor 1, avoids pair
Brake motor 1 impacts, and main shaft 3 turns to protrusion 32 when being in contact with left limit bolt 34, the release completely of scroll spring 41,
And main shaft 3 is stopped by left limit bolt 34 so that main shaft 3, second driving shaft 23 are static, complete valve reset；Output
Axis 11 turn to effect of inertia disappearance, output shaft 11, first gear 24, the first transmission shaft 22, freewheel clutch 2 outer ring 21 stop
Rotation stop is dynamic.
D, the second is brake motor 1 is in 12 dead electricity of motor power, power brake source 13 obtains under electricity condition, i.e., at valve rod
In locking under stationary state, 1 unexpected dead electricity of brake motor, i.e. motor power 12, power brake source 13 while dead electricity, brake is electric at this time
The output shaft 11 of machine 1 and first gear 24, the first transmission shaft 22,2 remains stationary of freewheel clutch, and scroll spring 41 loses system
It about resets, driving spindle 3 rotates clockwise so that valve rod rotates clockwise, and main shaft 3 drives second gear 31 clockwise
Rotation, second driving shaft 23 rotates counterclockwise, at the same drive the inner ring 20 of freewheel clutch 2 and outer ring 21 to rotate counterclockwise, the
One transmission shaft 22 and first gear 24 rotate clockwise, the output shaft of brake motor 1 11 rotates counterclockwise, and main shaft 3 turns to convex
32 are played when being in contact with left limit bolt 34, the release completely of scroll spring 41, and main shaft 3 is hindered by left limit bolt 34
Gear so that main shaft 3, second driving shaft 23 are static, freewheel clutch 2 inner ring 20 is static, complete valve reset；Brake electricity at this time
The output shaft 11 of machine 1 still maintains to rotate counterclockwise under effect of inertia, and outer ring 21 is rotated with the output shaft 11 of brake motor 1,
Inner ring 20 is detached with 3 remains stationary of main shaft, the inner ring 20 of freewheel clutch 2 and outer ring 21, until inertia completely disappears, brake electricity
The output shaft 11 of machine 1 is static, and avoidable emergency stop causes the damage of 1 output shaft 11 of brake motor；The presence of freewheel clutch 2, makes
Valve can reset rapidly, but the output shaft 11 of brake motor 1 will not stop operating immediately, to the output shaft 11 of brake motor 1,
One-way driving mechanism forms protection.
Preferably, turbine ring 42 can be driven to rotate by rotary worm 43 so that scroll spring 41 generates main shaft 3
Torsion is pre-tightened, worm screw 43 forms self-locking after stopping operating to turbine ring 42；When brake motor 1 is powered, and main shaft 3 is driven to rotate, whirlpool
Coil spring 41 is further tightened, and when the whole dead electricity of brake motor 1, scroll spring 41 is discharged, and the torque of release gradually subtracts
Small, when left limit bolt 34 withstands the protrusion 32 of main shaft 3, the torque of release is original prefastening torque, and reaching main shaft 3 can
The purpose of required position is rested on as needed.
Embodiment 7
The working method of spring reset Electric Actuator drive mechanism described in embodiment 4, includes the following steps：
A, the motor power 12 of brake motor 1 electric, 13 dead electricity of power brake source when, the output shaft 11 of brake motor 1 turns clockwise
It is dynamic, drive first gear 24, the first transmission shaft 22 to rotate counterclockwise, freewheel clutch 2, second driving shaft 23 rotate clockwise,
Second gear 31, main shaft 3 rotate counterclockwise so that main shaft 3 drives valve rod to rotate counterclockwise, and realizes flow-rate adjustment；Main shaft 3
Rotation driven gear 44 rotates, and gear 44 coordinates with left piston formula rack 45, right piston formula rack 46 so that main shaft 3 or so two
The compression helical spring 47 of side is stretched, and realizes the energy storage of compression helical spring 47.
B, after valve rod turns to required position, 12 dead electricity of motor power of brake motor 1, power brake source 13 must be electric,
The output shaft 11 of brake motor 1 is locked so that first gear 24, the first transmission shaft 22, freewheel clutch 2, second driving shaft 23,
Second gear 31,3 remains stationary state of main shaft complete the locking to valve rod and compression helical spring 47.
C, in use, there are the risks of dead electricity for brake motor 1, specifically in two kinds of situation, one is brake motor 1
It is obtained under electric, 13 power failure state of power brake source in motor power 12, i.e., valve rod is in just in rotary state, brake motor 1
Unexpected dead electricity, i.e. motor power 12, power brake source 13 while dead electricity, the output shaft 11 of brake motor 1 is under effect of inertia at this time
It still keeps rotating clockwise, first gear 24, the first transmission shaft 22 rotate counterclockwise, and outer ring 21 is driven to keep turning clockwise
Dynamic, freewheel clutch 2 rotates clockwise, and compression helical spring 47 loses restriction and resets, and gear 44 is pushed to carry out clockwise
Rotation, and then driving spindle 3 rotates clockwise so that valve rod rotates clockwise, and main shaft 3 drives second gear 31 clockwise
The inner ring 20 of rotation, second driving shaft 23 and freewheel clutch 2 rotates counterclockwise, the rotation direction phase of inner ring 20 and outer ring 21
Instead so that clutch action is formed between second driving shaft 23 and the first transmission shaft 22, rotating backward for main shaft 3 can not be transferred to brake
The output shaft 11 of vehicle motor 1 avoids impacting brake motor 1, and main shaft 3 turns to protrusion 32 and connects with left limit bolt 34
When touching, compression helical spring 47 restores former length, and is stopped to main shaft 3 by left limit bolt 34 so that main shaft 3, second
Transmission shaft 23 is static, completes valve reset；Output shaft 11 turns to effect of inertia disappearance, output shaft 11, first gear 24, first
Transmission shaft 22, freewheel clutch 2 outer ring 21 stop operating.
D, the second is brake motor 1 is in 12 dead electricity of motor power, power brake source 13 obtains under electricity condition, i.e., at valve rod
Under lock-out state, 1 unexpected dead electricity of brake motor, i.e. motor power 12, power brake source 13 dead electricity simultaneously, brake motor 1 at this time
Output shaft 11 and first gear 24, the first transmission shaft 22,2 remains stationary of freewheel clutch, compression helical spring 47 loses
It restricts and resets, push gear 44 to be rotated clockwise, and then driving spindle 3 rotates clockwise so that valve rod up time
Needle rotates, and main shaft 3 drives second gear 31 to rotate clockwise, and second driving shaft 23 rotates counterclockwise, while driving overdrive clutch
The inner ring 20 of device 2 and outer ring 21 rotate counterclockwise, the first transmission shaft 22 and first gear 24 rotate clockwise, brake motor 1
Output shaft 11 rotates counterclockwise, and main shaft 3 turns to protrusion 32 when being in contact with left limit bolt 34, and scroll spring 41 is released completely
Put, and main shaft 3 stopped by left limit bolt 34 so that main shaft 3, second driving shaft 23, freewheel clutch 2 inner ring 20
It is static, complete valve reset；The output shaft 11 of brake motor 1 still maintains to rotate counterclockwise under effect of inertia at this time, outer ring
21 rotate with the output shaft 11 of brake motor 1, and inner ring 20 is with 3 remains stationary of main shaft, the inner ring 20 of freewheel clutch 2 and outer ring 21
Separation, until inertia completely disappears, the output shaft 11 of brake motor 1 is static, and avoidable emergency stop causes 1 output shaft 11 of brake motor
Damage；The presence of freewheel clutch 2 so that valve can reset rapidly, but the output shaft 11 of brake motor 1 will not stop immediately
Rotation, protection is formd to output shaft 11, the one-way driving mechanism of brake motor 1.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
Bright spiritual changes and variations that derived from are still in the protection scope of this invention.
Claims (9)
1. a kind of spring reset Electric Actuator drive mechanism, which is characterized in that including brake motor, freewheel clutch, main shaft,
The output shaft of spring energy-storage mechanism, the brake motor coordinates through the freewheel clutch and the spindle drive, so that described
Brake motor can drive the rotation of the main shaft, the valve rod transmission of the main shaft and valve to coordinate；Spring energy-storage mechanism packet
Energy-storaging spring is included, which coordinates with the spindle drive, so that when the main axis, valve rod is rotated while being stored
Energy spring deforms upon, and carries out energy stores；When brake motor dead electricity, energy-storaging spring resets, and driving spindle rotates backward, and drives
Valve rod rotates backward, and realizes valve reset.
2. spring reset Electric Actuator drive mechanism according to claim 1, which is characterized in that the brake motor
The inner ring transmission of output shaft and the freewheel clutch coordinates, and the outer ring of the freewheel clutch coordinates with the spindle drive；
Or the output shaft of the brake motor and the outer ring transmission of the freewheel clutch coordinate, the inner ring of the freewheel clutch and institute
Spindle drive cooperation is stated, so that the brake motor can drive the main axis, while can be in brake motor output shaft and master
Clutch action is formed between axis.
3. spring reset Electric Actuator drive mechanism according to claim 1 or 2, which is characterized in that the accumulation of energy bullet
Spring is scroll spring, and spring energy-storage mechanism further includes turbine ring, and the main shaft is set in the scroll spring, the scrollwork bullet
Spring is set in the turbine ring, and inside starting end and the spindle drive of the scroll spring coordinate, the scroll spring
Outside end and the turbine ring on the inside of transmission coordinate, so as to scroll spring can be driven to rotate when the main axis.
4. spring reset Electric Actuator drive mechanism according to claim 3, which is characterized in that the spring energy-storage machine
Structure further includes worm screw, is meshed on the outside of the worm screw and the turbine ring, when the worm screw rotates, driving turbine ring rotation,
So that scroll spring is tightened or is loosened.
5. spring reset Electric Actuator drive mechanism according to claim 4, which is characterized in that the worm screw with it is described
Turbine ring self-locking coordinates, and the worm screw can drive the turbine ring to rotate.
6. spring reset Electric Actuator drive mechanism according to claim 2, which is characterized in that the energy-storaging spring is
Compression helical spring, spring energy-storage mechanism further include gear and piston type rack, and the gear is socketed on the main shaft, institute
The one end for stating piston type rack is meshed with the gear, and the piston end of the piston type rack is passed with the compression helical spring
Dynamic cooperation can drive piston type rack to stretch or compress the compression spiral bullet so that when the main shaft driven gear rotation
Spring.
7. spring reset Electric Actuator drive mechanism according to claim 5 or 6, which is characterized in that the brake electricity
Machine further includes rotor assembly, magnechuck, fixed disk, brake iron pan, spring leaf, and the top of the fixed disk and rotor assembly is solid
Fixed to be connected, the lower face of the brake iron pan is fixedly linked through spring leaf and the fixed disk, the magnechuck and the brake
Vehicle iron pan clearance fit, the power brake source are electrically connected with the magnechuck, so that the magnechuck generates magnetic after being powered
Property, brake iron pan is sucked by magnechuck, and spring leaf, which is stretched, generates deformation, and brake iron pan, fixed disk, rotor assembly are locked
It is fixed；Magnetic after magnechuck power-off to disappear, spring leaf resets under elastic reaction, the iron pan that brakes is detached with magnechuck.
8. spring reset Electric Actuator drive mechanism according to claim 7, which is characterized in that the spring energy-storage machine
Structure further includes the left limit bolt and right limit bolt for limiting the main axis angle, and the bottom end setting of the main shaft is convex
It rises, so that protrusion is in contact with left limit bolt or right limit bolt when the main axis, by left limit bolt or right limit
Bolt limits the rotational angle of main shaft.
9. the working method of spring reset Electric Actuator drive mechanism according to claim 2, which is characterized in that including
Following steps：
A, when the motor power of brake motor obtains electric, power brake source dead electricity, the output shaft of brake motor rotate and drive surmount from
The inner ring of clutch, outer ring rotate synchronously so that main axis, main shaft drive valve rod rotation, realize flow-rate adjustment；Main shaft turns
It is dynamic to drive scroll spring rotation or compression helical spring is driven to move the energy storage for realizing energy-storaging spring；
B, after valve rod turns to required position, the motor power dead electricity of brake motor, power brake source obtain it is electric, brake motor
Output shaft is locked so that inner ring, outer ring, the main shaft of freewheel clutch are static, complete the locking to valve rod and energy-storaging spring；
C, when the motor power of brake motor and power brake source are in power failure state simultaneously, energy-storaging spring, which resets, drives main shaft reversed
Rotation, outer ring is rotated backward with inner ring or outer ring is rotate in same direction with inner ring when resetting stopping to main shaft, the inner ring of freewheel clutch
It is detached with outer ring, motor output shaft is rotated further and main shaft is non-interference because of inertia.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810759566.0A CN108571614A (en) | 2018-07-11 | 2018-07-11 | A kind of spring reset Electric Actuator drive mechanism and its working method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810759566.0A CN108571614A (en) | 2018-07-11 | 2018-07-11 | A kind of spring reset Electric Actuator drive mechanism and its working method |
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| CN111828581A (en) * | 2020-08-21 | 2020-10-27 | 王立炜 | Waiting mechanism for upper station and lower station and control mode thereof |
| CN112259389A (en) * | 2020-10-14 | 2021-01-22 | 上海华明电力设备制造有限公司 | Operating mechanism of one-way on-load tap-changer |
| CN112901003A (en) * | 2021-01-25 | 2021-06-04 | 张建玉 | Windproof spring door |
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| CN112901003A (en) * | 2021-01-25 | 2021-06-04 | 张建玉 | Windproof spring door |
| CN112901003B (en) * | 2021-01-25 | 2022-05-31 | 无锡华腾门业科技有限公司 | Windproof spring door |
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