CN107154703A - A kind of electromechanical actuator based on inverse type planetary roller screw pair - Google Patents
A kind of electromechanical actuator based on inverse type planetary roller screw pair Download PDFInfo
- Publication number
- CN107154703A CN107154703A CN201710546797.9A CN201710546797A CN107154703A CN 107154703 A CN107154703 A CN 107154703A CN 201710546797 A CN201710546797 A CN 201710546797A CN 107154703 A CN107154703 A CN 107154703A
- Authority
- CN
- China
- Prior art keywords
- shell
- nut
- back casing
- procapsid
- planetary roller
- 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
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Classifications
-
- 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
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Transmission Devices (AREA)
Abstract
A kind of electromechanical actuator based on inverse type planetary roller screw pair, belong to field of electromechanical equipment, it is by back casing shell, back casing, shell, what inverse type planetary roller screw pair and procapsid were constituted, left journal stirrup is fixedly welded with the back casing shell, back casing is fixedly connected on back casing shell front end by screw, back casing front end is shell, shell front end is procapsid, shell inner surface interference fit has motor stator, its left end inner surface is connected with nut flange by bearing, nut flange left end is provided with encoder, right-hand member is provided with nut, nut inner surface is threaded with nut assembly, outer surface interference fit has rotor, nut assembly right-hand member is provided with leading screw.Rotary motion is changed into linear translation by the high-power high power density electromechanical actuator, and transmission torque is big and steady, and small volume structure is compact, while improving precision and performance using encoder.
Description
Technical field
The present invention relates to a kind of electromechanical actuator based on inverse type planetary roller screw pair, specifically in shell
Inner surface setting motor stator, drives inverse type planetary roller screw pair to rotate and realizes leading screw stretching motion by rotor
Device, belong to field of electromechanical equipment.
Background technology
Electromechanical actuator is the important subsystem of the posture control systems such as guided missile, rocket, torpedo.It is mainly used in airvane, combustion gas
The control of rudder, jet pipe etc., need to have high reliability, it is easy to maintenance the characteristics of.In recent years, electromechanical servo system development is swift and violent,
Through having obtained the checking of many successful examples, in view of the natural superiority of electromechanical servo system, from now on before the development of electromechanical servo
Scape can be more wide.
Traditional electro-mechanical servo actuator uses linear ball leading screw auxiliary drive gear, is driven using motor, but shared by it
Zero-bit length is long, and positive and negative stroke is limited, and its load that can bear is smaller, and volume is larger, it is difficult in space lessly
Side is used, and reduces its performance.Traditional electromechanical actuator can not meet pursuit of the market to actuator efficiency, its
Overall construction intensity demand is also substantially improved, therefore is badly in need of a kind of novel electromechanical actuator, it is intended to improve work(matter ratio.Finally, one
Plant the electromechanical actuator based on inverse type planetary roller screw pair to arise at the historic moment, technical foundation is provided for problems.
The content of the invention
For above-mentioned deficiency, the invention provides a kind of electromechanical actuator based on inverse type planetary roller screw pair.
The present invention is achieved by the following technical solutions：A kind of electromechanical work based on inverse type planetary roller screw pair
Dynamic device, is made up of back casing shell, back casing, shell, inverse type planetary roller screw pair, procapsid, right journal stirrup and left journal stirrup
, left journal stirrup is fixedly welded with the back casing shell, the back casing is fixedly connected on back casing shell front end by screw,
The back casing front end is installed with shell, and the shell front end is installed with procapsid, the procapsid and back casing
Four screw rods are threaded with the centre bore of corner concave surface.
Further, equidistantly interference fit has motor stator to the shell inner surface circumference, is provided with its fit clearance
Latch, the shell left end inner surface is connected with fixed at the top of nut flange, the nut flange left end by two bearings
Encoder is installed, the nut flange right-hand member is installed with nut, and the nut is circular ring structure, and its inner surface is provided with
Screw thread, the nut outer surfaces interference fit has rotor, and the nut inner surface is threaded with nut assembly, described
Nut assembly right-hand member is installed with leading screw, and the leading screw connects procapsid inner surface, the leading screw right-hand member by linear bearing
It is installed with right journal stirrup.
Further, the nut left end outer surface connects shell inner surface by two angular contact ball bearings, described
The nut outer surfaces of angular contact ball bearing left end are provided with round nut, and stop is provided between the round nut and angular contact ball bearing
Packing ring.
Further, between the back casing shell and back casing be provided with rubber seal, the back casing and shell it
Between be provided with rubber seal, between the shell and procapsid be provided with rubber seal.
The usefulness of the invention is that the motor stator energization drive motor rotor of shell inner surface is rotated, rotor
Leading screw translation is driven by nut, the angle and the number of turns of the encoder record rotation of nut flange left end, the actuator will rotate
Motion is changed into linear translation, and transmission torque is big and steady, and small volume structure is compact, at the same using encoder improve precision and
Performance；The right journal stirrup on left journal stirrup and procapsid on back casing shell is used for connecting external member, and intensity height connection can
Lean on；Four screw rods are threaded with procapsid and the centre bore of back casing corner concave surface, bonding strength is improved；Back casing
Rubber seal between shell and back casing, between housing and shell, shell and procapsid prevents dust from entering shell, improves
Service life.
Brief description of the drawings
Accompanying drawing 1 is overall structure diagram of the invention；
Accompanying drawing 2 is internal structure schematic diagram of the invention；
Accompanying drawing 3 is the sectional view of left-half of the present invention；
Accompanying drawing 4 is the internal structure schematic diagram of left-half of the present invention；
Accompanying drawing 5 is top view of the invention；
Accompanying drawing 6 is the sectional view of right half part of the present invention；
Accompanying drawing 7 is the internal structure schematic diagram of right half part of the present invention.
In figure, 1, back casing shell, 2, back casing, 3, shell, 4, screw rod, 5, angular contact ball bearing, 6, procapsid, 7, right
Journal stirrup, 8, left journal stirrup, 9, axle side, 10, motor stator, 11, rotor, 12, nut flange, 13, nut assembly, 14, silk
Thick stick, 15, encoder, 16, nut, 17, linear bearing, 18, stop washer, 19, round nut.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate attached
Figure describes in detail as follows.
With reference to a kind of structure of electromechanical actuator based on inverse type planetary roller screw pair of Fig. 1-7 pairs of inventions
It is explained in detail.A kind of electromechanical actuator based on inverse type planetary roller screw pair, be by back casing shell 1, back casing 2,
What shell 3, screw rod 4, procapsid 6, right journal stirrup 7 and left journal stirrup 8 were constituted, left journal stirrup 8 is fixedly welded with the back casing shell 1,
The back casing 2 is fixedly connected on the front end of back casing shell 1 by screw, and the front end of back casing 2 is installed with shell 3, institute
State the front end of shell 3 and be installed with threaded connection in procapsid 6, the centre bore of 2 four jiaos of concave surfaces of procapsid 6 and back casing
There are four screw rods 4, equidistantly interference fit has motor stator 10 to the inner surface circumference of shell 3, and stop is provided with its fit clearance
Pin, the left end inner surface of shell 3 is connected with the top of nut flange 12, the left end of nut flange 12 by two bearings 9
Encoder 15 is installed with, the right-hand member of nut flange 12 is installed with nut 16, and the nut 16 is circular ring structure,
Its inner surface is provided with screw thread, and the outer surface of nut 16 interference fit has rotor 11, and the inner surface screw thread of nut 16 connects
Nut assembly 13 is connected to, the right-hand member of nut assembly 13 is installed with leading screw 14, and the leading screw 14 is connected by linear bearing 17
The inner surface of procapsid 6 is connect, the right-hand member of leading screw 14 is installed with right journal stirrup 7, and the left end outer surface of nut 16 passes through two
Angular contact ball bearing 5 connects the inner surface of shell 3, and the outer surface of nut 16 of the left end of angular contact ball bearing 5 is provided with round nut
19, stop washer 18 is provided between the round nut 19 and angular contact ball bearing 5, between the back casing shell 1 and back casing 2
Provided with rubber seal, rubber seal is provided between the back casing 2 and shell 3, is set between the shell 3 and procapsid 6
There is rubber seal.
Operation principle：When using a kind of electromechanical actuator based on inverse type planetary roller screw pair, back casing shell
The right journal stirrup 7 on left journal stirrup 8 and procapsid 6 on 1 can connect other outside components, between back casing 2 and procapsid 6
Four further supporting roles of screw rod 4, the motor stator 10 of the inner surface of shell 3 is powered, and drive motor rotor 11 is rotated,
The nut flange 12 and the concomitant rotation of nut 16 coordinated with rotor 11, nut flange 12 drives encoder 15 to rotate, and records
The angle and the number of turns of rotation, nut 16 drive nut assembly 13 to move horizontally, and screw mandrel 14 and right journal stirrup 7 are moved, angular contact
The outer surface of nut 16 of the left end of ball bearing 5 is provided with round nut 19, and stop pad is provided between round nut 19 and angular contact ball bearing 5
Circle 18, stop washer 18 prevents the movement of angular contact ball bearing 5, between back casing shell 1 and back casing 2, housing 2 and shell 3,
Rubber seal between shell 3 and procapsid 6 prevents dust from entering shell 3, and the invention design science is reasonable, compact conformation
Power is big, can accurately realize the stretching motion of actuator, simple to operate, is worth a wide range of and promotes.
For the ordinary skill in the art, according to the teachings of the present invention, do not depart from the present invention principle with
In the case of spirit, changes, modifications, replacement and the modification carried out to embodiment still fall within protection scope of the present invention it
It is interior.
Claims (4)
1. it is by back casing shell, back casing, shell, reversely a kind of electromechanical actuator based on inverse type planetary roller screw pair
What formula planetary roller screw pair, procapsid, right journal stirrup and left journal stirrup were constituted, it is characterised in that：Fixed weldering on the back casing shell
Left journal stirrup is connected to, the back casing is fixedly connected on back casing shell front end by screw, and the back casing front end is installed with
Shell, the shell front end is installed with screw thread in procapsid, the centre bore of procapsid and back casing the corner concave surface and connected
It is connected to four screw rods.
2. a kind of electromechanical actuator based on inverse type planetary roller screw pair as claimed in claim 1, it is characterised in that：Institute
Stating shell inner surface circumference, equidistantly interference fit has motor stator, is provided with its fit clearance in latch, the shell left end
Surface is connected with the top of nut flange, the nut flange left end by two bearings and is installed with encoder, the nut
Flange right-hand member is installed with nut, and the nut is circular ring structure, and its inner surface is provided with screw thread, the nut outer surfaces interference
Rotor is combined with, the nut inner surface is threaded with nut assembly, and the nut assembly right-hand member is installed with silk
Thick stick, the leading screw connects procapsid inner surface by linear bearing, and the leading screw right-hand member is installed with right journal stirrup.
3. a kind of electromechanical actuator based on inverse type planetary roller screw pair as claimed in claim 1, it is characterised in that：Institute
State nut left end outer surface and connect shell inner surface, the nut of the angular contact ball bearing left end by two angular contact ball bearings
Outer surface is provided with round nut, and stop washer is provided between the round nut and angular contact ball bearing.
4. a kind of electromechanical actuator based on inverse type planetary roller screw pair as claimed in claim 1, it is characterised in that：Institute
State and rubber seal is provided between back casing shell and back casing, rubber seal is provided between the back casing and shell, it is described
Rubber seal is provided between shell and procapsid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546797.9A CN107154703A (en) | 2017-07-06 | 2017-07-06 | A kind of electromechanical actuator based on inverse type planetary roller screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546797.9A CN107154703A (en) | 2017-07-06 | 2017-07-06 | A kind of electromechanical actuator based on inverse type planetary roller screw pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107154703A true CN107154703A (en) | 2017-09-12 |
Family
ID=59796297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710546797.9A Pending CN107154703A (en) | 2017-07-06 | 2017-07-06 | A kind of electromechanical actuator based on inverse type planetary roller screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107154703A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895048A (en) * | 2018-09-20 | 2018-11-27 | 北京航空航天大学 | One kind being based on bellows pressure balance formula deep-sea hydraulic actuator |
| CN109217574A (en) * | 2018-11-13 | 2019-01-15 | 四川航天烽火伺服控制技术有限公司 | A kind of electromechanical servo system |
| CN111322324A (en) * | 2018-12-17 | 2020-06-23 | 丰田自动车株式会社 | Disc brake device |
| CN113114003A (en) * | 2021-04-19 | 2021-07-13 | 北京航空航天大学 | High power-to-weight ratio integrated large-bearing full-electric linear actuator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204030832U (en) * | 2014-06-19 | 2014-12-17 | 深圳市鸿栢科技实业有限公司 | A kind of planetary roller electric cylinder that is applied to hang integral type soldering turret |
| CN106787414A (en) * | 2017-01-11 | 2017-05-31 | 北京航空航天大学 | A kind of integrated electromechanical servo acting device of high power density |
| CN106787412A (en) * | 2016-11-15 | 2017-05-31 | 北京精密机电控制设备研究所 | A kind of highly integrated formula electromechanical actuator of integrated design |
-
2017
- 2017-07-06 CN CN201710546797.9A patent/CN107154703A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204030832U (en) * | 2014-06-19 | 2014-12-17 | 深圳市鸿栢科技实业有限公司 | A kind of planetary roller electric cylinder that is applied to hang integral type soldering turret |
| CN106787412A (en) * | 2016-11-15 | 2017-05-31 | 北京精密机电控制设备研究所 | A kind of highly integrated formula electromechanical actuator of integrated design |
| CN106787414A (en) * | 2017-01-11 | 2017-05-31 | 北京航空航天大学 | A kind of integrated electromechanical servo acting device of high power density |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895048A (en) * | 2018-09-20 | 2018-11-27 | 北京航空航天大学 | One kind being based on bellows pressure balance formula deep-sea hydraulic actuator |
| CN109217574A (en) * | 2018-11-13 | 2019-01-15 | 四川航天烽火伺服控制技术有限公司 | A kind of electromechanical servo system |
| CN109217574B (en) * | 2018-11-13 | 2024-05-17 | 四川航天烽火伺服控制技术有限公司 | Electromechanical servo system |
| CN111322324A (en) * | 2018-12-17 | 2020-06-23 | 丰田自动车株式会社 | Disc brake device |
| CN113114003A (en) * | 2021-04-19 | 2021-07-13 | 北京航空航天大学 | High power-to-weight ratio integrated large-bearing full-electric linear actuator |
| CN113114003B (en) * | 2021-04-19 | 2022-03-25 | 北京航空航天大学 | High power-to-weight ratio integrated large-bearing full-electric linear actuator |
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| 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: 20170912 |