CN107453535A - A kind of Double-stroke electromechanical actuator - Google Patents
A kind of Double-stroke electromechanical actuator Download PDFInfo
- Publication number
- CN107453535A CN107453535A CN201710719463.7A CN201710719463A CN107453535A CN 107453535 A CN107453535 A CN 107453535A CN 201710719463 A CN201710719463 A CN 201710719463A CN 107453535 A CN107453535 A CN 107453535A
- Authority
- CN
- China
- Prior art keywords
- component
- screw
- screw mandrel
- electromechanical actuator
- motor rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2252—Planetary rollers between nut and screw
-
- 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
-
- 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
-
- 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
- F16H2025/2059—Superposing movement by two screws, e.g. with opposite thread direction
-
- 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
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2075—Coaxial drive motors
-
- 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
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2075—Coaxial drive motors
- F16H2025/2078—Coaxial drive motors the rotor being integrated with the nut or screw body
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The embodiments of the invention provide a kind of Double-stroke electromechanical actuator,Belong to electromechanical servo technical field,Described Double-stroke electromechanical actuator includes servomotor component,First screw component and the second screw component,The servomotor component includes the motor rotor component and motor stator component set by nesting,The motor rotor component is nut structure,First screw component is arranged on the first end of the motor rotor component and the motor rotor component forms the first lead screw pair,Second screw component sets the second end of the motor rotor component and the motor rotor component to form the second lead screw pair,When rotating the motor rotor component,First screw component is driven round about with second screw component,Realize twice of stroke that stretches of electromechanical actuator,Compared to actuation types electromechanical actuator,Possesses small volume,Large carrying capacity,Structural rigidity is high,The characteristics of integration degree and high power density.
Description
Technical field
It is electromechanical more particularly, to a kind of integration of Double-stroke nut drive-type the invention belongs to electromechanical servo technical field
Actuator.
Background technology
Electromechanical actuator is a kind of device for converting electrical energy into mechanical energy, the core knot of usual linear electromechanical actuator
Structure composition includes servomotor and worm drive part, and the effect of servomotor is output driving torque, worm drive part
Effect is that driving torque is converted into linear motion and reciprocating thrust force.
At present, unit motor-driven cylinder, a servomotor and a worm drive part, servomotor and spiral shell are used mostly
Rotation transmission parts can be mounted to coaxial-type or run-in index, in the case of more rich when axial dimension space, from coaxial-type cloth
Office, is attached by spline or flat key；In the case of radial dimension is richer, it is laid out from run-in index, passes through gear
Pair is attached, and increases centre-to-centre spacing.
Limited by worm drive part helical pitch parameter and structure type, the flexible row of existing single remaining electromechanical actuator
Journey is restricted, the design requirement of big stroke, necessarily electromechanical actuator complete machine envelope size is consequently increased, therefore, such as
Where under smaller volume, shorter zero-bit length, the flexible stroke more than at double is realized, solves big stroke electromechanical actuator
Application demand, it is one of technological difficulties that needs are captured.
The content of the invention
The technical problem to be solved in the present invention is：A kind of Double-stroke electromechanical actuator is provided, realizes and is grown in short zero-bit
Under degree, reach double more than specified stroke, contrasted with traditional line formula electromechanical actuator, possess smaller volume and again
Amount, disclosure satisfy that big stroke demand, be especially suitable for stretched to the actuator higher field of range demands, such as passenger plane, transporter
Hatch door extension and retraction system, multiple degrees of freedom folded surface extension and retraction system etc..
The technical solution adopted in the present invention is：
A kind of Double-stroke electromechanical actuator, including servomotor component, the first screw component and the second screw component, institute
Stating servomotor component includes the nested motor rotor component and motor stator component set, and the motor rotor component is nut
Structure, first screw component is arranged on the first end of the motor rotor component and the motor rotor component forms first
Lead screw pair, second screw component are arranged on the second end of the motor rotor component and the motor rotor component and form the
Two lead screw pair, when rotating the motor rotor component, first screw component and second screw component are to phase negative side
To transmission.
In an alternative embodiment, first screw component is the ball screw comprising ball and the first screw mandrel, described
First screw mandrel is hollow-core construction.
In an alternative embodiment, second screw component is the planet rolling comprising planetary roller component and the second screw mandrel
Post screw mandrel, when rotating the motor rotor component, second screw mandrel is from the insertion of one end of first screw mandrel or passes institute
In the cavity for stating the first screw mandrel.
In an alternative embodiment, the planetary roller component includes multiple rollers and roller rolling retainer；
The diameter at the roller both ends is less than main body portion diameter, and the main part is provided with annular groove, the ring
The main part is divided into first paragraph and second segment by connected in star, and is equipped with the roller both ends and the annular groove
One external screw thread, the first paragraph and/or second segment of the main part are provided with the second external screw thread；
Three annular protrusions are interval with the cavity at the end of motor rotor component second, the annular protrusion is provided with
First internal thread；
The multiple roller is arranged on the second end of the motor rotor component by the roller rolling retainer, and described first
External screw thread is engaged with first internal thread adaptation, and the first paragraph and second segment of the main part are installed with two neighboring respectively
In cavity between the annular protrusion, and there is gap with the cavity；
The external screw thread of second screw mandrel engages with second external screw thread adaptation.
In an alternative embodiment, the internal diameter of first screw mandrel is 0.7-0.8 times of external diameter.
In an alternative embodiment, the length of first screw mandrel is at least 1.5 times of the roller length.
In an alternative embodiment, the internal diameter of first screw mandrel is bigger 2-3mm than the external diameter of second screw mandrel.
In an alternative embodiment, the annular protrusion width is 0.1-0.3 times of the roller length.
In an alternative embodiment, the motor rotor component includes rotating shaft, and the rotating shaft is hollow-core construction, the servo
Electric machine assembly also includes motor shell component, and the both ends of the rotating shaft are connected by angular contact ball bearing and the motor shell component
Connect.
The present invention compared with prior art the advantages of be：
(1) Double-stroke electromechanical actuator provided in an embodiment of the present invention controls two simultaneously by same motor rotor component
Group lead screw assembly moves in the opposite direction, and on the premise of specified bearing requirements are met, it is bigger to realize electromechanical actuator
Flexible stroke, is realized under short zero-bit length, reaches double specified stroke above, with traditional line formula electromechanical actuator
Contrast, possesses smaller volume and weight, disclosure satisfy that big stroke design requirement
(2) ball screw assembly, has the characteristics of transmission efficiency, strong shock resistance, and planetary roller screw pair has and held
The characteristics of loading capability is big, stable drive, two types leading screw is applied in electromechanical actuator simultaneously, takes full advantage of each lead screw pair
The advantages of, improve actuator combination property；
(3) long nut does Integration Design with servo motor rotor, and both ends are propped up using high-mechanic angular contact ball bearing
Support, both ensure that the structural rigidity of electromechanical actuator, and had further shortened the axial dimension of actuator, improve servo-drive system
Integration degree and power density.
Brief description of the drawings
Fig. 1 is a kind of schematic appearance at the visual angle of Double-stroke electromechanical actuator first provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic appearance at the visual angle of Double-stroke electromechanical actuator second provided in an embodiment of the present invention；
Fig. 3 is a kind of cross-sectional view of Double-stroke electromechanical actuator provided in an embodiment of the present invention；
Fig. 4 is roller construction schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the cavity inside structural representation at the end of motor rotor component second provided in an embodiment of the present invention；
Fig. 6 a are the structural representation when actuator that one embodiment of the invention provides is in zero-bit state；
Fig. 6 b are the structural representation when actuator that one embodiment of the invention provides is in positive stroke state；
Fig. 6 c are the structural representation when actuator that one embodiment of the invention provides is in negative stroke state；During state
Structural representation.
Embodiment
Referring to Fig. 1 and Fig. 2, the embodiments of the invention provide a kind of Double-stroke electromechanical actuator, including servomotor group
Part 300, the first screw component 100 and the second screw component 200, servomotor component 300 include the nested rotor set
Component and motor stator component, the motor rotor component are nut structure, referring specifically to Fig. 3, in the embodiment of the present invention, and motor
Rotor assembly includes rotating shaft 1, magnet steel 7 and the stainless steel sleeve 9 set from inside to outside, and rotating shaft 1 is hollow-core construction, and is had in cavity
Screw thread, makes whole motor rotor component form the structure of similar nut, and the first screw component 100 is arranged on the rotor group
The first end of part forms the first lead screw pair with the motor rotor component, and the second screw component 200 is arranged on the rotor
Second end of component forms the second lead screw pair, when rotating the motor rotor component, first with the motor rotor component
Bar assembly 100 is driven round about with the second screw component 200.
Double-stroke electromechanical actuator provided in an embodiment of the present invention controls two groups simultaneously by same motor rotor component
Lead screw assembly moves in the opposite direction, on the premise of specified bearing requirements are met, realizes that electromechanical actuator is bigger to be stretched
Indention journey, realize under short zero-bit length, reach double specified stroke above, with traditional line formula electromechanical actuator pair
Than possessing smaller volume and weight, disclosure satisfy that big stroke design requirement；
Referring to Fig. 3, in an alternative embodiment, the first screw component 100 is the ball for including the screw mandrel 2 of ball 3 and first
Screw mandrel, the first screw mandrel 2 are hollow-core construction, reduce the weight of transmission parts, so as to beneficial to raising electromechanical actuator overall power
Density, while ball can bear shock loading to a certain degree, overload capacity is stronger.In other embodiments, the first screw component
The roller screw mandrel comprising the first screw mandrel and roller assembly can also be selected as needed, and the present invention does not limit；
In an alternative embodiment, planet that the second screw component 200 is made up of planetary roller component and the second screw mandrel 4
Roller screw mandrel, when rotating the motor rotor component, the second screw mandrel 4 inserts or passed first from one end of the first screw mandrel 2
In the cavity of bar 2；Using planetary roller screw pair so that the transmission of electromechanical actuator power is more steady, transmission accuracy is higher, energy
Enough reach under small size, the application demand carried greatly.In other embodiments, the second screw component can also select as needed
Ball screw comprising the second screw mandrel and ball, the present invention do not limit.
In an alternative embodiment, the planetary roller component includes multiple rollers 5 and roller rolling retainer 6；
Referring to Fig. 4, the diameter at the both ends of roller 5 is less than main body portion diameter, and the main part is provided with annular groove, institute
State annular groove and the main part is divided into first paragraph and second segment, be all provided with the roller both ends and the annular groove
There is the first external screw thread, as shown in figs. 1 and 4, in an alternate embodiment of the present invention, the main part of roller 5 is put down by annular groove
Two sections, i.e. first paragraph and second segment are divided into, first paragraph and second segment are equipped with the second external screw thread, and the structure makes the stress of roller 5
Equilibrium, be advantageous to the normal work of roller 5；In other embodiments, it can also need to set annular groove according to use in master
The position of body portion, the second external screw thread, this hair only can also be set on the first paragraph or second segment of main part as needed
It is bright not limit；
As shown in figure 5, it is interval with three annular protrusion a, convex annular in the cavity at the end of motor rotor component second
Play a and be provided with the first internal thread；
Multiple rollers 5 are arranged on the second end of the motor rotor component, first external screw thread by roller rolling retainer
Engaged with first internal thread adaptation, the first paragraph and second segment of the main part are installed with the two neighboring ring respectively
In cavity between shape projection, and there is gap with the cavity；The external screw thread of second screw mandrel 4 is adapted to second external screw thread
Engagement.
After servomotor component starts, machine shaft does fixed-axis rotation by a certain direction of rotation, rotating shaft first in spiral shell
Line and the external screw thread engaged transmission of roller 5 first, force roller 5 to do rotation movement and do planetary motion around the second screw mandrel 4, roller is protected
Circumference relative position and concomitant rotation that frame 6 constrains roller 5 are held, due to outside the external screw thread of the second screw mandrel 4 and the second of roller 5
Screw thread engagement can constrain the screw mandrel 4 of roller 5 and second again because of screw-driven and caused by axial displacement, so as to drive second
Bar 4 is moved along a straight line, and realizes that System of Rotating about Fixed Axis moves to the conversion of linear motion, this preferred scheme, by servo motor rotor with
Nut Integration Design, clearance issues caused by avoiding intermediate transfer link, improve the response of electromechanical actuator overall dynamics
Ability.
In an alternative embodiment, to ensure the axial carrying capacity of screw mandrel, the internal diameter of the first screw mandrel 2 is the 0.7- of external diameter
0.8 times, the length dimension of the first screw mandrel 2 is more than the length of roller, and the length of preferably the first screw mandrel 2 is at least roller length
1.5 again；The diameter of second screw mandrel 4 should meet helical pitch parameter requirements, the internal diameter of the first screw mandrel 2 is than with ball size fit
The external diameter of two screw mandrels 4 is big, and not interfere phenomenon when ensuring both relative motions, the internal diameter of the first screw mandrel 2 is than the second screw mandrel 4
The big 2-3mm of external diameter；
In an alternative embodiment, the height of annular protrusion is more than the screw thread whole depth of the first internal thread, and the two size
Difference is preferably greater than 0.5mm, and annular protrusion width is 0.1-0.3 times of roller length, preferably 0.2 times, adjacent two annular protrusion
The distance between for 1-2 times with the width of annular protrusion, preferably 1.5 times, to ensure that roller carries and ensures roller and nut
And more steady smoothness is driven between roller and screw mandrel.
It is below the specific embodiment of the present invention：
Referring to Fig. 1-4, a kind of Double-stroke nut drive-type integral machine motor-driven cylinder is present embodiments provided, main bag
Include with lower component：Two-pass leading screw subcomponent, rotor assembly, stator module, front journal component, rear lug component, electric machine casing
Component, bolt assembly etc..
Wherein, as shown in figure 3, two-pass leading screw subcomponent includes two-pass long nut (rotating shaft 1), ball screw (first
Screw mandrel 2), ball 3, roller screw mandrel (the second screw mandrel 4), roller 5 and retainer 6；Rotor assembly includes rotating shaft 1, magnet steel 7, balance
Circle 8, stainless steel sleeve 9；Stator module includes stator 10 and winding 11；Front journal component includes front journal 12 and preceding adjusting nut
13；Lug component includes rear journal stirrup 14 and rear adjusting nut 15 afterwards；Before motor shell component includes electric machine casing 16, electric machine casing
End cap 17, electric machine casing rear end cap 18 and angular contact ball bearing 19；Bolt assembly includes bolt 20, nut 21.
In the present embodiment, two-pass leading screw subcomponent is integrated with rotor assembly using magnet steel surface-mount type structure assembly, i.e.,
Two-pass long nut is exactly the rotating shaft 1 of rotor, and long nut both ends are realized and motor shell component by angular contact ball bearing 19
Radial support, and can bear to come from external action in the axial push-pull load of front journal component and rear lug component；Stator
Component is fixed by bolt assembly, and forms servomotor with rotor assembly, and alternating magnetic field can be produced after energization, promotes motor
Rotor does forward and reverse rotation motion, and then is driven using the ball-screw-transmission in two-pass lead screw pair and planetary roller screw,
Convert rotational motion is moved for the opposite direction linear telescopic of two types screw mandrel, realizes the double flexible row of electromechanical actuator
Journey.
Two-pass long nut one end inner surface is provided with ball spiral rolling track, the outer surface spiral rolling track with ball screw,
By a number of ball engagement, ball screw assembly, is formed；The other end inner surface of two-pass long nut is provided with internal thread, with
The external screw thread of roller screw mandrel, transmission is coordinated by the roller of circumference, planetary roller screw pair is formed, because reverse stroke is set
Meter, so when two-pass long nut is rotated by certain direction of rotation, roller screw mandrel and ball screw opposite direction can be realized
Stretching motion.
For two-pass long nut as a servo motor rotor component part, a number of fan-shaped magnet steel 7 is posted in outer surface；
The quantity of balance ring 8 is two, respectively with the cylindrical interference fit of two-pass long nut, and the both ends of magnet steel 7 is placed in, by its magnet steel 7
Axially position is carried out, and plays a part of adjusting rotor dynamic balancing；Stainless steel sleeve 9 is simultaneously by outside the outer surface of magnet steel 7 and balance ring 8
Surface elastic conjunction, limit the radial direction centrifugal motion of magnet steel.
Stator 10 is formed by silicon steel sheet compacting, is assembled with electric machine casing 16 using interference mode, stator 10 is provided with a fixed number
Measuring tank type hole, continuous coil can be wound in stator hole, after winding 11 is powered, alternating magnetic field can be produced, so that and rotor
Magnet steel couples, and drives rotor to rotate.
The one end of front journal 12 is connected with external agency by bearing pin, and bearing pin center line is orthogonal with the presentation of roller screw mandrel center line
Arrangement, the external screw thread that the other end is provided with internal thread and roller screw mandrel are attached fixation；The adjusting nut of front journal 12 and roller silk
The external screw thread of bar further locks front journal, prevent because vibrations operating mode and caused by thread looseness.
The one end of journal stirrup 14 is connected with external agency by bearing pin afterwards, and bearing pin center line is orthogonal with the presentation of ball screw center line
Arrangement, the other end is provided with external screw thread and the internal thread of ball screw is attached fixation；The adjusting nut of journal stirrup 14 and rear journal stirrup afterwards
External screw thread rear journal stirrup is further locked, prevent because vibrations operating mode and caused by thread looseness.
After electric machine casing 16 and servo motor stator carry out elastic conjunction, then with electric machine casing drive end bearing bracket 17, electric machine casing
The seam of rear end cap 18 coordinates；The inner ring of angular contact ball bearing 19 and two-pass long nut journal engagement, its outer ring and motor casing
The bore of body component coordinates, and supports servo motor rotor jointly.
The bolt 20 of certain amount circumference uniform distribution passes through electric machine casing deep hole, by electric machine casing 16, electric machine casing drive end bearing bracket
17th, electric machine casing rear end cap 18 is fixed.
Double-stroke nut drive-type integral machine motor-driven cylinder provided in an embodiment of the present invention, set the outer of servomotor
It is L to enclose axial envelope size, and the specified positive and negative flexible stroke of actuator is X, then when actuator is in zero-bit state, is such as schemed
Shown in 6a, the total length at front and rear journal stirrup center is L+2X；Referring to Fig. 6 b, when the servomotor of actuator does dextrorotation transhipment
It is dynamic so that lead screw pair do positive stroke it is flexible after, the maximum length at front and rear journal stirrup center is L+4X；Referring to Fig. 6 c, when actuator
Servomotor does counter-clockwise rotary motion so that lead screw pair do negative stroke it is flexible after, the minimum length at front and rear journal stirrup center is L；
As can be seen here, two are realized compared to traditional type electromechanical actuator, Double-stroke nut drive-type integral machine motor-driven cylinder
The stroke of times rated travel.
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.Described specific embodiment is only pair
Spirit explanation for example of the invention.The personnel of the technical field of the invention can do different repair to described specific embodiment
Change or supplement or replaced using similar mode, but spirit without departing from the present invention or surmount appended claims and defined
Scope.
Claims (9)
1. a kind of Double-stroke electromechanical actuator, it is characterised in that including servomotor component, the first screw component and second
Bar assembly, the servomotor component include the nested motor rotor component and motor stator component set, the rotor
Component is nut structure, and first screw component is arranged on the first end of the motor rotor component and the rotor group
Part forms the first lead screw pair, and second screw component is arranged on the second end of the motor rotor component and the rotor
Component forms the second lead screw pair, when rotating the motor rotor component, first screw component and the second screw mandrel group
Part is driven round about.
2. Double-stroke electromechanical actuator according to claim 1, it is characterised in that first screw component is to include
The ball screw of ball and the first screw mandrel, first screw mandrel are hollow-core construction.
3. Double-stroke electromechanical actuator according to claim 2, it is characterised in that second screw component is to include
The planetary roller screw mandrel of planetary roller component and the second screw mandrel, when rotating the motor rotor component, second screw mandrel from
Insert or pass in the cavity of first screw mandrel in one end of first screw mandrel.
4. Double-stroke electromechanical actuator according to claim 3, it is characterised in that：
The planetary roller component includes multiple rollers and roller rolling retainer；
The diameter at the roller both ends is less than main body portion diameter, and the main part is provided with annular groove, and the annular is recessed
The main part is divided into first paragraph and second segment by groove, is equipped with the roller both ends and the annular groove outside first
Screw thread, the first paragraph and/or second segment of the main part are provided with the second external screw thread；
Three annular protrusions are interval with the cavity at the end of motor rotor component second, the annular protrusion is provided with first
Internal thread；
The multiple roller is arranged on the second end of the motor rotor component, the first outer spiral shell by the roller rolling retainer
Line is engaged with first internal thread adaptation, and the first paragraph and second segment of the main part are installed with two neighboring described respectively
In cavity between annular protrusion, and there is gap with the cavity；
The external screw thread of second screw mandrel engages with second external screw thread adaptation.
5. according to the Double-stroke electromechanical actuator described in claim any one of 2-4, it is characterised in that：First screw mandrel
Internal diameter is 0.7-0.8 times of external diameter.
6. Double-stroke electromechanical actuator according to claim 5, it is characterised in that：The length of first screw mandrel is at least
For 1.5 times of the roller length.
7. Double-stroke electromechanical actuator according to claim 6, it is characterised in that：The internal diameter of first screw mandrel compares institute
State the big 2-3mm of external diameter of the second screw mandrel.
8. Double-stroke electromechanical actuator according to claim 4, it is characterised in that：The annular protrusion width is described
0.1-0.3 times of roller length.
9. Double-stroke electromechanical actuator according to claim 1, it is characterised in that the motor rotor component includes turning
Axle, the rotating shaft are hollow-core construction, and the servomotor component also includes motor shell component, and the both ends of the rotating shaft pass through angle
Contact ball bearing is connected with the motor shell component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710719463.7A CN107453535A (en) | 2017-08-21 | 2017-08-21 | A kind of Double-stroke electromechanical actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710719463.7A CN107453535A (en) | 2017-08-21 | 2017-08-21 | A kind of Double-stroke electromechanical actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107453535A true CN107453535A (en) | 2017-12-08 |
Family
ID=60492909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710719463.7A Pending CN107453535A (en) | 2017-08-21 | 2017-08-21 | A kind of Double-stroke electromechanical actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107453535A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947415A (en) * | 2018-01-04 | 2018-04-20 | 沈阳工业大学 | A kind of bilinear magneto |
| 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 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02223349A (en) * | 1988-10-13 | 1990-09-05 | John L Sneddon | Linear driving assembly |
| JPH03164074A (en) * | 1989-11-20 | 1991-07-16 | Canon Inc | Precise direct advance bilateral rotation actuator |
| CN103133620A (en) * | 2011-12-05 | 2013-06-05 | 谢夫勒科技股份两合公司 | Planetary rolled thread drive |
| CN203984150U (en) * | 2013-07-12 | 2014-12-03 | 美蓓亚株式会社 | There is brushless motor |
| CN104675946A (en) * | 2014-08-27 | 2015-06-03 | 北京精密机电控制设备研究所 | Differential planetary roller screw |
| CN105793614A (en) * | 2013-12-06 | 2016-07-20 | 舍弗勒技术股份两合公司 | Actuator with planetary roller screw (PWG) |
| CN105782381A (en) * | 2016-05-24 | 2016-07-20 | 江苏瑞安特机械集团有限公司 | Planet pin roller screw rod pair |
| CN107606089A (en) * | 2017-08-21 | 2018-01-19 | 北京精密机电控制设备研究所 | A kind of nested type ball screw assembly, |
-
2017
- 2017-08-21 CN CN201710719463.7A patent/CN107453535A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02223349A (en) * | 1988-10-13 | 1990-09-05 | John L Sneddon | Linear driving assembly |
| JPH03164074A (en) * | 1989-11-20 | 1991-07-16 | Canon Inc | Precise direct advance bilateral rotation actuator |
| CN103133620A (en) * | 2011-12-05 | 2013-06-05 | 谢夫勒科技股份两合公司 | Planetary rolled thread drive |
| CN203984150U (en) * | 2013-07-12 | 2014-12-03 | 美蓓亚株式会社 | There is brushless motor |
| CN105793614A (en) * | 2013-12-06 | 2016-07-20 | 舍弗勒技术股份两合公司 | Actuator with planetary roller screw (PWG) |
| CN104675946A (en) * | 2014-08-27 | 2015-06-03 | 北京精密机电控制设备研究所 | Differential planetary roller screw |
| CN105782381A (en) * | 2016-05-24 | 2016-07-20 | 江苏瑞安特机械集团有限公司 | Planet pin roller screw rod pair |
| CN107606089A (en) * | 2017-08-21 | 2018-01-19 | 北京精密机电控制设备研究所 | A kind of nested type ball screw assembly, |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947415A (en) * | 2018-01-04 | 2018-04-20 | 沈阳工业大学 | A kind of bilinear magneto |
| CN107947415B (en) * | 2018-01-04 | 2023-10-27 | 沈阳工业大学 | Double-linear permanent magnet motor |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106787412B (en) | A kind of highly integrated formula electromechanical actuator of integrated design | |
| CN105650215B (en) | Harmonic pin drive, motor gear unit, vehicle and generator | |
| CN110139999A (en) | A kind of transmission decelerating device | |
| CN105774525B (en) | The multistage electronic wheel assembly of stator and rotor combination type | |
| CN107453535A (en) | A kind of Double-stroke electromechanical actuator | |
| CN107524772A (en) | A kind of big stroke planetary roller screw pair | |
| CN207223589U (en) | Throw blanking device and throw base machine | |
| CN202158149U (en) | Harmonic gear device | |
| CN108058559B (en) | Double-cylinder type energy feedback shock absorber | |
| CN108058560A (en) | A kind of energy damping device of automobile | |
| CN106499774B (en) | A kind of transmission decelerating device | |
| CN207864584U (en) | Twin-screw Bulking Machine gearbox output shaft structure | |
| WO2021212708A1 (en) | Concentric shaft balancing device for three-cylinder engine | |
| CN201884586U (en) | Screw rod secondary transmission device | |
| CN207064596U (en) | Screw mandrel sliding track mechanism and line traffic control shift actuator | |
| CN206419433U (en) | A kind of transmission decelerating device | |
| CN107534382A (en) | Transmission mechanism | |
| CN201137685Y (en) | Multishock cylinder roller speed changing bearing | |
| CN105508533B (en) | The shell running gear of buncher | |
| CN205715472U (en) | Rolling push rod oscillating tooth robot joint speed reducer | |
| WO2022248276A1 (en) | Regenerative shock absorber | |
| CN110725656B (en) | Telescopic mechanism and sucker rod lifting and releasing device | |
| CN203363037U (en) | Telescoping mechanism | |
| CN101087096A (en) | Electromagnetic harmonic wave drive action device | |
| CN210327267U (en) | Speed reducer with built-in motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |