CN107725705A - A kind of double remaining electromechanical actuators of linear antiseize - Google Patents
A kind of double remaining electromechanical actuators of linear antiseize Download PDFInfo
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- CN107725705A CN107725705A CN201710938334.7A CN201710938334A CN107725705A CN 107725705 A CN107725705 A CN 107725705A CN 201710938334 A CN201710938334 A CN 201710938334A CN 107725705 A CN107725705 A CN 107725705A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000009467 reduction Effects 0.000 claims description 42
- 230000033001 locomotion Effects 0.000 claims description 27
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/2015—Means specially adapted for stopping actuators in the end position; Position sensing 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/205—Screw mechanisms comprising alternate power paths, e.g. for fail safe back-up
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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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/204—Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/06—Machines characterised by the presence of fail safe, back up, redundant or other similar emergency arrangements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
- Braking Arrangements (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of double remaining electromechanical actuators of linear antiseize, motor-driven cylinder has the characteristics of antiseize pair remaining, i.e. main mode of operation and back-up job pattern, mainly realize, linear transmission mechanism main function components are nested type ball screw assembly,s by linear transmission mechanism, including outer leading screw and interior leading screw, its main work of China and foreign countries' leading screw, interior leading screw can reduce radial direction space-consuming as backup, nested arrangement, reduce axial zero-bit length simultaneously, improve the specific power of actuator.
Description
Technical field
The present invention relates to a kind of double remaining electromechanical actuators of linear antiseize, watch applied to Aeronautics and Astronautics etc. is highly reliable
In dress system, belong to electromechanical servo field.
Background technology
Electromechanical actuator because of high transmission accuracy, fast response time and it is easy to maintain the advantages that be widely used in servo techniques
Field.Ball-screw-transmission is one of common type of belt drive of linear electromechanical actuator.From the point of view of development present situation, Gao Ke
It is to restrict electromechanical actuator in the wide variety of main factor of aviation field by property.To improve the reliability of electromechanical actuator,
Electromechanical actuator need to possess fail operation ability.At present, electromechanical actuator generally ensures that electrical system possesses redundance function, and
But fail to adopt an effective measure on the problem of leading screw is stuck.
The content of the invention
The technology of the present invention solves problem：For overcome the deficiencies in the prior art, there is provided a kind of double remainings of linear antiseize
Electromechanical actuator, still possessing quota ability to work under once failure, electrical system has four remaining failure safe functions, with
Improve the reliability and security of electromechanical actuator.
The technical solution of the present invention：
A kind of double remaining electromechanical actuators of linear antiseize, including the first motor, the second motor, the first brake, the
Two brakes, ball spline gear pair, outer leading screw, interior leading screw, the first planetary reduction gear, the second planetary reduction gear and driving cog
Wheel,
Under main mode of operation, automatically controlled signal control second brake power-off brake, by the second motor output shaft locking, ball
Spline gear vice division chief, by interior leading screw locking, the operating of first the first planetary reduction gear of motor driven, drives outer leading screw in lockup state
Convert rotational motion is linear motion by work, outer leading screw, and interior leading screw and ball spline gear pair follows the screw mandrel of outer leading screw to enter
Row linear motion, exports straight-line displacement；
When main mode of operation breaks down, start back-up job pattern, automatically controlled signal controls the first brake by the first electricity
Machine output shaft brake lock, outer leading screw locking, the unblock of the second motor, driving the second planetary reduction gear operating, and pass through driving cog
Wheel, drive ball spline gear pair to operate, leading screw work in driving, rotational alignment displacement is exported, in the work of the journal stirrup of output end
Under, rotary motion, linear movement output are eliminated.
Also include the first brake casing, second brake housing and nested type leading screw housing, the first motor, the second motor
Be fixed on respectively with the first brake casing, second brake housing on nested type leading screw housing, nested type leading screw housing it is upper
Lower surface supports motor and brake casing, the first brake, second brake to be separately mounted to the first brake casing, second
In arrester shell body, power-off can locking motor shaft.
Also include guide pad and output end lug component, the first planetary reduction gear, the second planetary reduction gear and nested type rolling
Ballscrew pair is arranged in nested type leading screw housing by bearing, wherein, nested type ball screw assembly, is by outer leading screw and interior leading screw
Two parts form；Guide pad is arranged in the keyway of outer leading screw and interior leading screw connection end, and with the chute of nested type leading screw housing
Microgap coordinates, and the rotation of feed screw nut is limited in transmission, is oriented to vertically, output end lug component is arranged on interior leading screw
On, export straight-line displacement.
First motor, the second motor motor shaft respectively with the first planetary reduction gear, the second planetary reduction gear first too
Sun wheel, the connection of the second sun gear, the first planet carrier and the housing of the first planetary reduction gear coordinate, and the first planet carrier of limitation rotates.
Also include outer feed screw nut, main working gear and the first decelerator external toothing, the first decelerator external toothing is inside and outside
Tooth designs, and internal tooth engages with the planetary gear of the first planetary reduction gear, and external tooth engages with main working gear, main working gear and outer silk
Thick stick nut connects, and motor shaft drives the first sun gear of the first planetary reduction gear to rotate, and rotation is delivered to the by the first sun gear
First decelerator external toothing of one planetary reduction gear, the first decelerator external toothing drive outer feed screw nut work.
Also include interior feed screw nut, travelling gear, the second decelerator external toothing and power transmission shaft, the of the second planetary reduction gear
Two planet carriers and transmission axis connection, the second planetary reduction gear external toothing is connected with housing, limits the rotation of external toothing, power transmission shaft and
Travelling gear connects, and travelling gear engages with ball spline gear, and ball spline gear coordinates with interior feed screw nut, ball flower
Key teeth wheel can drive interior leading screw nut rotation, relative can also slide between the two.
During work, the axle of the second motor drives the second sun gear to rotate, and the second sun gear transmits motion to the second planet
Frame, the second planet carrier drives power transmission shaft work, and then is rotated with nutating gear, and travelling gear drives ball spline gear to turn
It is dynamic, so as to drive interior feed screw nut to work, the linear movement output in the presence of output end lug component.
Also include double thrustbearing, when main mode of operation breaks down, interior feed screw nut was not only rotated but also slided, thrust
Bearing inner race is pacified by bearing lock nut and interior feed screw nut compression fit, shaft washer with output end journal stirrup and bearing
Housing compression fit is filled, interior feed screw nut can relatively rotate with output end journal stirrup and transmit axial force and straight-line displacement simultaneously, lead to
Cross output end lug component and the rotational motion to linear motion of interior feed screw nut is converted into linear motion.
The present invention has the advantages that compared with prior art：
(1) motor-driven cylinder of the present invention has the characteristics of antiseize pair remaining, i.e., main mode of operation and back-up job pattern are main
To be realized by linear transmission mechanism, linear transmission mechanism main function components are nested type ball screw assembly,s, including outer leading screw
With interior leading screw, its main work of China and foreign countries' leading screw, interior leading screw can reduce radial direction space-consuming, contract simultaneously as backup, nested arrangement
Subtract axial zero-bit length, improve the specific power of actuator；
(2) motor of the present invention is arranged with actuator run-in index, can reduce axial dimension；Planetary reduction gear passes with fixed axis gear
It is dynamic to be applied in combination, centre-to-centre spacing and radial dimension can be reduced, and two motor setting angles can enter according to actual installation space requirement
Row regulation, strong applicability, leading screw housing and reducer shell integrated design, eliminate idler gear and mounting flange structure,
Shorten centre-to-centre spacing and radial dimension；
(3) feed screw nut is connected with output end journal stirrup by thrust bearing structure in the present invention, can be relatively rotated, can be simultaneously
Transmit axial force and output straight-line displacement.
Brief description of the drawings
Fig. 1 is electromechanical actuator schematic diagram of the present invention；
Fig. 2 is electromechanical actuator part sectioned view of the present invention；
Fig. 3 is actuator drive mechanism figure of the present invention；
Fig. 4 is output end lug component structure chart of the present invention；
Fig. 5 is electromechanical actuator outline drawing of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of double remaining electromechanical actuators of linear antiseize, as shown in Figure 1, Figure 2, Figure 5, including the first motor 6A, the
Two motor 6B, the first brake 15A, second brake 15B, ball spline gear pair 5, outer leading screw 3, interior leading screw 4, the first planet
Decelerator 16A, the second planetary reduction gear 16B and travelling gear 13,
Under main mode of operation, automatically controlled signal control second brake 15B power-off brakes, the second motor 6B output shafts are embraced
Extremely, ball spline gear pair 5 is in lockup state, and by the interior locking of leading screw 4, the first motor 6A drives the first planetary reduction gear 16A
Operating, outer leading screw 3 is driven to work, convert rotational motion is to move along a straight line by outer leading screw 3, interior leading screw 4 and ball spline gear pair 5
Follow the screw mandrel of outer leading screw 3 to be moved along a straight line, export straight-line displacement；
When main mode of operation breaks down, start back-up job pattern, automatically controlled signal controls the first brake 15A by first
Motor 6A output shaft brake locks, the outer locking of leading screw 3, the second motor 6B unblocks, driving the second planetary reduction gear 16B operatings, and
By travelling gear 13, ball spline gear pair 5 is driven to operate, leading screw 4 works in driving, rotational alignment displacement is exported, defeated
Go out in the presence of the journal stirrup 2 at end, eliminate rotary motion, linear movement output.
As shown in Fig. 2 also include the first brake casing 7A, second brake housing 7B and nested type leading screw housing 8, the
One motor 6A, the second motor 6B are fixed on nested type leading screw shell with the first brake casing 7A, second brake housing 7B respectively
On body 8, the upper and lower surface support motor and brake casing of nested type leading screw housing 8, the first brake 15A, second brake
15B is separately mounted in the first brake casing 7A, second brake housing 7B, and power-off can locking motor shaft.
Also include guide pad 18 and output end lug component 2, the first planetary reduction gear 16A, the second planetary reduction gear 16B and
Nested type ball screw assembly, is arranged in nested type leading screw housing 8 by bearing, wherein, nested type ball screw assembly, is by outer leading screw
3 and the two parts of interior leading screw 4 composition；Guide pad 18 is arranged in outer leading screw 3 and the keyway of the connection end of interior leading screw 4, and and nested type
The chute microgap of leading screw housing 8 coordinates, and the rotation of feed screw nut is limited in transmission, is oriented to vertically, output end journal stirrup group
Part 2 is arranged on interior leading screw 3, exports straight-line displacement.
Connection end cap 10 is coordinated by seam is arranged on the right side of nested type leading screw housing 8, and is fastened by screw, connection end
Lid primarily serves the effect of spring bearing and housing positioning.Ball spline gear sub-shell 9 coordinates with connection end cap 10 to be installed, main
If being provided a supporting role to ball spline gear pair 5 and bearing, and provide sealing to transmission link and ensure.Position sensor is pacified
Dress housing 11 is positioned by seam, and is connected by screw and ball spline gear sub-shell 9, and predominantly sensor cluster provides
Support and sealing.Position sensor installation lid 12 is arranged on position sensor installation housing 11 and ball spline gear sub-shell 9
On, sealing is provided for sensor, and play support connector.Output end lug component 2 is arranged on interior leading screw 3, output
Straight-line displacement.
As shown in Figure 2 and Figure 3, the first motor 6A, the second motor 6B motor shaft respectively with the first planetary reduction gear 16A,
Two planetary reduction gear 16B the first sun gear 25, the second sun gear 26 connects, the first planetary reduction gear 16A the first planet carrier
22 coordinate with housing, and the first planet carrier 22 of limitation rotates.
Also include outer feed screw nut 3B, main working gear 3C and the first decelerator external toothing 21, the first decelerator external toothing
21 be that interior external tooth designs, and internal tooth engages with the first planetary reduction gear 16A planetary gear, and external tooth engages with main working gear 3C, main
Working gear 3C is connected with outer feed screw nut 3B, and motor shaft drives the first planetary reduction gear 16A the first sun gear 25 to rotate, the
One sun gear 25 is delivered to the first planetary reduction gear 16A the first decelerator external toothing 21, the first decelerator external toothing by rotating
21 drive outer feed screw nut 3B work.
Also include interior feed screw nut 4B, travelling gear 13, the second decelerator external toothing 23 and power transmission shaft 31, the second planet to subtract
Fast device 16B the second planet carrier 24 is connected with power transmission shaft 31, and the second planetary reduction gear external toothing 23 is connected with housing, limits external tooth
The rotation of circle, power transmission shaft 31 is connected with travelling gear 13, and travelling gear 13 engages with ball spline gear 5A, ball spline tooth
Take turns 5A and interior feed screw nut 4B to coordinate, ball spline gear 5A can drive interior leading screw nut rotation, can also slide relatively between the two
It is dynamic.
During work, the second motor 6B axle drives the second sun gear 26 to rotate, and the second sun gear 26 transmits motion to the
Two planet carriers 24, the second planet carrier 24 drives power transmission shaft 31 to work, and then is rotated with nutating gear 13, and travelling gear 13 drives
Ball spline gear 5A is rotated, and so as to drive interior feed screw nut 4B to work, straight line is exported in the presence of output end lug component 2
Motion.
As shown in figure 4, also including double thrustbearing 34, when main mode of operation breaks down, interior feed screw nut 4B was both
Rotate and slide again, the inner ring of thrust bearing 34 passes through bearing lock nut 38 and interior feed screw nut 4B compression fits, thrust bearing 34
Outer ring relative can turn with output end journal stirrup 36 and the bearing installation compression fit of housing 35, interior feed screw nut 4B with output end journal stirrup 36
It is dynamic simultaneously to transmit axial force and straight-line displacement simultaneously, interior feed screw nut 4B rotational motion to linear motion is turned by output end lug component
Turn to linear motion.
Electromechanical actuator of the present invention has antiseize function, and the function is mainly realized by linear transmission mechanism, directly
Line transmission mechanism main function components are that nested type ball screw assembly, includes outer leading screw and interior leading screw, its main work of China and foreign countries' leading screw,
For interior leading screw as backup, nested arrangement can reduce radial direction space-consuming, while reduce axial zero-bit length, improve actuator
Specific power.
The double remaining electromechanical actuators of antiseize have the characteristics of antiseize pair remaining, there is two kinds of mode of operations, i.e., main work
Pattern and back-up job pattern.Main mode of operation is in during normal work, works as transmission parts, outside nested type ball screw assembly,
When leading screw is stuck, when main mode of operation fails, back-up job pattern is switched to, so as to ensure electromechanical actuator energy normal work.
The structure of nested type ball screw assembly, is as shown in figure 3, by outer leading screw and interior leading screw assembly connection, two lead screw pair helical pitches
It is identical, it is oppositely oriented.Backup of the interior leading screw as outer leading screw, in outer leading screw failure, ensure that nested type ball screw assembly, is normal
Work.
Motor of the present invention is arranged with actuator run-in index, can reduce axial dimension；Planetary reduction gear is driven with fixed axis gear
It is applied in combination, centre-to-centre spacing and radial dimension can be reduced, and two motor setting angles can be carried out according to actual installation space requirement
Regulation, strong applicability.
As shown in Fig. 2 motor is arranged by decelerator and leading screw run-in index, two motors can split leading screw both sides, or in vertical
Squareness is arranged, suitable for different installing space demands.Leading screw housing and reducer shell integrated design, eliminate centre
Gear and mounting flange structure, shorten centre-to-centre spacing and radial dimension.
The sliding motion in rolling of feed screw nut, becomes sliding friction as rolling in ball spline gear drive realization of the present invention
Dynamic friction, frictional dissipation is greatly reduced, improve the transmission efficiency of actuator.
As shown in figure 3, ball spline designs with gear integrated form, radial dimension, the surface edge of interior feed screw nut are reduced
Ball road is circumferentially machined with, relative can be slided between interior feed screw nut and ball spline 5A, when ball spline 5A is rotated,
Feed screw nut 4B rotates in drive, and interior leading screw screw mandrel 4A is fixedly connected with outer leading screw screw mandrel 3A, interior during outer leading screw screw mandrel 3A lockings
Leading screw screw mandrel 4A lockings, interior feed screw nut 4B relatively rotates with interior leading screw screw mandrel 4A, in the presence of lead screw pair, interior leading screw
Nut 4B straight lines slide, and export straight-line displacement.
Feed screw nut is connected with output end journal stirrup by thrust bearing structure in the present invention, can be relatively rotated, be transmitted simultaneously
Axial force and output straight-line displacement.
As shown in figure 4, in the case where main mode of operation breaks down, interior feed screw nut 4B was not only rotated but also slided, and defeated
Go out to hold journal stirrup 36 only to allow to move along a straight line, this function realized using double thrustbearing 34, now, interior feed screw nut 4B with it is defeated
Go out to hold journal stirrup 36 can relatively rotate and transmit axial force and straight-line displacement simultaneously.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.
Claims (8)
1. the double remaining electromechanical actuators of a kind of linear antiseize, it is characterised in that including the first motor (6A), the second motor
(6B), the first brake (15A), second brake (15B), ball spline gear pair (5), outer leading screw (3), interior leading screw (4),
One planetary reduction gear (16A), the second planetary reduction gear (16B) and travelling gear (13),
Under main mode of operation, automatically controlled signal control second brake (15B) power-off brake, the second motor (6B) output shaft is embraced
Extremely, ball spline gear pair (5) is in lockup state, and by interior leading screw (4) locking, the first motor (6A) drives the first planetary reduction gear
Device (16A) is operated, and drives outer leading screw (3) work, and convert rotational motion is linear motion, interior leading screw (4) and rolling by outer leading screw (3)
Spline gear pair (5) follows the screw mandrel of outer leading screw (3) to be moved along a straight line, and exports straight-line displacement；
When main mode of operation breaks down, start back-up job pattern, automatically controlled signal controls the first brake (15A) by the first electricity
Machine (6A) output shaft brake lock, outer leading screw (3) locking, the second motor (6B) unblock, the second planetary reduction gear of driving (16B) fortune
Turn, and by travelling gear (13), drive ball spline gear pair (5) to operate, leading screw (4) work in driving, it is straight to export rotation
Displacement of the lines, in the presence of the journal stirrup (2) of output end, eliminate rotary motion, linear movement output.
2. the double remaining electromechanical actuators of a kind of linear antiseize as claimed in claim 1, it is characterised in that also including first
Brake casing (7A), second brake housing (7B) and nested type leading screw housing (8), the first motor (6A), the second motor
(6B) is fixed on nested type leading screw housing (8) with the first brake casing (7A), second brake housing (7B) respectively, nested
The upper and lower surface support motor and brake casing of formula leading screw housing (8), the first brake (15A), second brake (15B) point
Not An Zhuan the first brake casing (7A), in second brake housing (7B), power-off can locking motor shaft.
3. the double remaining electromechanical actuators of a kind of linear antiseize as claimed in claim 2, it is characterised in that also include being oriented to
Block (18) and output end lug component (2), the first planetary reduction gear (16A), the second planetary reduction gear (16B) and nested type ball
Lead screw pair is arranged in nested type leading screw housing (8) by bearing, wherein, nested type ball screw assembly, is by outer leading screw (3) and interior
Leading screw (4) two parts form；Guide pad (18) is arranged in the keyway of outer leading screw (3) and interior leading screw (4) connection end, and with it is nested
The chute microgap of formula leading screw housing (8) coordinates, and the rotation of feed screw nut is limited in transmission, is oriented to vertically, output end branch
Ear component (2) is arranged on interior leading screw (3), exports straight-line displacement.
A kind of 4. double remaining electromechanical actuators of linear antiseize as claimed in claim 1, it is characterised in that the first motor
The motor shaft of (6A), the second motor (6B) respectively with the first planetary reduction gear (16A), the second planetary reduction gear (16B) first
Sun gear (25), the second sun gear (26) connection, the first planet carrier (22) and the housing of the first planetary reduction gear (16A) coordinate,
Limit the first planet carrier (22) rotation.
5. the double remaining electromechanical actuators of a kind of linear antiseize as claimed in claim 1, it is characterised in that also including outer silk
Thick stick nut (3B), main working gear (3C) and the first decelerator external toothing (21), the first decelerator external toothing (21) are interior external tooth
Design, internal tooth engage with the planetary gear of the first planetary reduction gear (16A), and external tooth engages with main working gear (3C), main work tooth
Wheel (3C) is connected with outer feed screw nut (3B), and motor shaft drives the first sun gear (25) of the first planetary reduction gear (16A) to rotate,
Rotation is delivered to the first decelerator external toothing (21) of the first planetary reduction gear (16A) by the first sun gear (25), and first slows down
Device external toothing (21) drives outer feed screw nut (3B) work.
6. the double remaining electromechanical actuators of a kind of linear antiseize as claimed in claim 1, it is characterised in that also including internal thread
Thick stick nut (4B), travelling gear (13), the second decelerator external toothing (23) and power transmission shaft (31), the second planetary reduction gear (16B)
The second planet carrier (24) be connected with power transmission shaft (31), the second planetary reduction gear external toothing (23) is connected with housing, limit external tooth
The rotation of circle, power transmission shaft (31) is connected with travelling gear (13), and travelling gear (13) engages with ball spline gear (5A), rolling
Spline gear (5A) coordinates with interior feed screw nut (4B), and ball spline gear (5A) can drive interior leading screw nut rotation, the two
Between relative can also slide.
A kind of 7. double remaining electromechanical actuators of linear antiseize as claimed in claim 6, it is characterised in that during work, the
The axle of two motors (6B) drives the second sun gear (26) to rotate, and the second sun gear (26) transmits motion to the second planet carrier
(24), the second planet carrier (24) drives power transmission shaft (31) work, and then is rotated with nutating gear (13), travelling gear (13) band
Dynamic ball spline gear (5A) rotates, so as to drive interior feed screw nut (4B) to work, in the presence of output end lug component (2)
Linear movement output.
8. the double remaining electromechanical actuators of a kind of linear antiseize as claimed in claim 6, it is characterised in that also including two-way
Thrust bearing (34), when main mode of operation breaks down, interior feed screw nut (4B) not only rotated but also slided, in thrust bearing (34)
Circle passes through bearing lock nut (38) and interior feed screw nut (4B) compression fit, thrust bearing (34) outer ring and output end journal stirrup
(36) and bearing installation housing (35) compression fit, interior feed screw nut (4B) and output end journal stirrup (36) can relatively rotate and simultaneously
Axial force and straight-line displacement are transmitted, is converted into the rotational motion to linear motion of interior feed screw nut (4B) directly by output end lug component
Line moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938334.7A CN107725705B (en) | 2017-09-30 | 2017-09-30 | Linear anti-jamming dual-redundancy electromechanical actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938334.7A CN107725705B (en) | 2017-09-30 | 2017-09-30 | Linear anti-jamming dual-redundancy electromechanical actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725705A true CN107725705A (en) | 2018-02-23 |
| CN107725705B CN107725705B (en) | 2020-06-09 |
Family
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| CN201710938334.7A Active CN107725705B (en) | 2017-09-30 | 2017-09-30 | Linear anti-jamming dual-redundancy electromechanical actuator |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764105A (en) * | 2019-03-16 | 2019-05-17 | 江苏安全技术职业学院 | Remaining electromechanical actuator |
| CN111120581A (en) * | 2019-12-17 | 2020-05-08 | 北京动力机械研究所 | Transmission structure of dual-redundancy electric mechanism |
| CN112253571A (en) * | 2020-09-22 | 2021-01-22 | 北京精密机电控制设备研究所 | Electromechanical actuator for realizing full-scale, non-full-scale or follow-up function after lead screw is clamped |
| CN112271864A (en) * | 2020-11-10 | 2021-01-26 | 中国船舶重工集团公司第七一六研究所 | Dual-redundancy speed comprehensive electromechanical actuator for controlling main rotor of unmanned helicopter |
| CN112460216A (en) * | 2020-10-29 | 2021-03-09 | 北京精密机电控制设备研究所 | Horizontal stabilizer double-channel transmission anti-backlash control electromechanical actuator |
| CN112460220A (en) * | 2020-10-29 | 2021-03-09 | 北京精密机电控制设备研究所 | Fault-safe damping type anti-jamming electromechanical actuator |
| CN114147095A (en) * | 2020-09-07 | 2022-03-08 | 航天晨光股份有限公司 | Automatic shaper for metal corrugated pipe |
| WO2023284102A1 (en) * | 2021-07-16 | 2023-01-19 | 北京精密机电控制设备研究所 | Electromechanical actuator and method for forced unlocking of fuzzy jamming fault of transmission mechanism |
| CN116279762A (en) * | 2023-01-13 | 2023-06-23 | 陕西国力信息技术有限公司 | Dual drive power steering system |
| WO2024055693A1 (en) * | 2022-09-14 | 2024-03-21 | 浙江捷昌线性驱动科技股份有限公司 | Transmission assembly of lifting column, and lifting column |
| WO2024060364A1 (en) * | 2022-09-22 | 2024-03-28 | 北京精密机电控制设备研究所 | Ultra-short electromechanical servo mechanism for mechanical fault self-recovery |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2622632A (en) * | 2022-09-23 | 2024-03-27 | Moog Wolverhampton Ltd | Linear actuator |
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| CN103527737A (en) * | 2012-07-05 | 2014-01-22 | 北京精密机电控制设备研究所 | Parallel electromechanical actuator |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764105A (en) * | 2019-03-16 | 2019-05-17 | 江苏安全技术职业学院 | Remaining electromechanical actuator |
| CN111120581A (en) * | 2019-12-17 | 2020-05-08 | 北京动力机械研究所 | Transmission structure of dual-redundancy electric mechanism |
| CN114147095B (en) * | 2020-09-07 | 2023-08-11 | 航天晨光股份有限公司 | Automatic shaper for metal corrugated pipe |
| CN114147095A (en) * | 2020-09-07 | 2022-03-08 | 航天晨光股份有限公司 | Automatic shaper for metal corrugated pipe |
| CN112253571A (en) * | 2020-09-22 | 2021-01-22 | 北京精密机电控制设备研究所 | Electromechanical actuator for realizing full-scale, non-full-scale or follow-up function after lead screw is clamped |
| CN112253571B (en) * | 2020-09-22 | 2023-09-29 | 北京精密机电控制设备研究所 | Electromechanical actuator for realizing full-scale, non-full-scale or follow-up function after screw rod is blocked |
| CN112460216A (en) * | 2020-10-29 | 2021-03-09 | 北京精密机电控制设备研究所 | Horizontal stabilizer double-channel transmission anti-backlash control electromechanical actuator |
| CN112460220A (en) * | 2020-10-29 | 2021-03-09 | 北京精密机电控制设备研究所 | Fault-safe damping type anti-jamming electromechanical actuator |
| CN112460220B (en) * | 2020-10-29 | 2021-11-16 | 北京精密机电控制设备研究所 | Fault-safe damping type anti-jamming electromechanical actuator |
| CN112271864A (en) * | 2020-11-10 | 2021-01-26 | 中国船舶重工集团公司第七一六研究所 | Dual-redundancy speed comprehensive electromechanical actuator for controlling main rotor of unmanned helicopter |
| WO2023284102A1 (en) * | 2021-07-16 | 2023-01-19 | 北京精密机电控制设备研究所 | Electromechanical actuator and method for forced unlocking of fuzzy jamming fault of transmission mechanism |
| WO2024055693A1 (en) * | 2022-09-14 | 2024-03-21 | 浙江捷昌线性驱动科技股份有限公司 | Transmission assembly of lifting column, and lifting column |
| WO2024060364A1 (en) * | 2022-09-22 | 2024-03-28 | 北京精密机电控制设备研究所 | Ultra-short electromechanical servo mechanism for mechanical fault self-recovery |
| CN116279762A (en) * | 2023-01-13 | 2023-06-23 | 陕西国力信息技术有限公司 | Dual drive power steering system |
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