CN103482059B - Electric steering engine - Google Patents
Electric steering engine Download PDFInfo
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- CN103482059B CN103482059B CN201310450635.7A CN201310450635A CN103482059B CN 103482059 B CN103482059 B CN 103482059B CN 201310450635 A CN201310450635 A CN 201310450635A CN 103482059 B CN103482059 B CN 103482059B
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000013461 design Methods 0.000 claims abstract description 7
- 238000002407 reforming Methods 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 3
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- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
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Abstract
The invention discloses an electric steering engine which comprises two DC (direct current) servo motors, a speed reducer and a linear displacement conversion device, wherein the sum of power of the two DC servo motors is larger than or equal to a design value of power of an electric steering system; and both the two DC servo motors and the linear displacement conversion device are in transmission connection with the speed reducer. According to the electric steering engine, the two small-power DC servo motors drive the linear displacement conversion device jointly, and the sum of the power of the two DC servo motors is larger than or equal to the design value of the power of the electric steering system, so that a large-power requirement of the electric steering system can be met, the higher cost and a complicated processing process for researching and developing a large-power DC servo motor are saved at the same time, the small-power servo motors in the conventional market are selected and used directly, and the manufacturing and the use are convenient.
Description
Technical field
The present invention relates to steering wheel technical field, particularly a kind of electric steering gear.
Background technology
Electric steering gear is the actuating unit of electric rudder system, and the rudder face being widely used in aircraft controls, and electric steering gear is made up of motor, gear reducer mechanism, position feedback potential device etc.
Along with flight system improving constantly in flying speed, highly, in disturbance rejection and maneuvering performance etc., this just requires the power improving constantly electric rudder system, and the motor of electric steering gear directly affects the power of electric rudder system.But high power DC servomotor cannot be found in the market to meet the significant power demand of electric rudder system, if producer's high-power servomotor customized, manufacture craft difficulty then due to high power DC servomotor is large, cost is high, produce more difficult, and the high power DC servomotor produced scantling of structure is comparatively large in theory, may not necessarily be arranged on and require in the aircraft of small size, the development tendency of following small size can not be adapted to.
In sum, how not raising the cost with under the condition of manufacture difficulty, meeting the high-power output of electric steering gear, being those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of electric steering gear, to meet the significant power demand of electric steering gear, do not improve cost and the manufacture difficulty of electric steering gear simultaneously.
For achieving the above object, the invention provides following technical scheme:
A kind of electric steering gear, comprises two DC servo motor, retarder and straight-line displacement reforming unit;
The power sum of two described DC servo motor is more than or equal to the power designs value of electric rudder system;
Two described DC servo motor and described straight-line displacement reforming unit are all in transmission connection with described retarder.
Preferably, in above-mentioned electric steering gear, two described DC servo motor and described straight-line displacement reforming unit are all positioned at the homonymy of described retarder, and described straight-line displacement reforming unit is between two described DC servo motor, and the output shaft of two described DC servo motor turns to identical.
Preferably, in above-mentioned electric steering gear, described retarder comprises first gear, two the second gears and two the 3rd gears;
Two described second gears and two described 3rd gears are all symmetrically distributed in the both sides of described first gear;
Described first gear and two described second gears meshing;
Described 3rd gear and described second gears meshing;
The output shaft of each described DC servo motor respectively three gear described with is fixedly connected with;
Described first gear is fixedly connected with the turning cylinder of described straight-line displacement reforming unit.
Preferably, in above-mentioned electric steering gear, the pivot center of described first gear, described second gear and described 3rd gear is positioned at same plane.
Preferably, in above-mentioned electric steering gear, described first gear, described second gear are parallel with the pivot center of described 3rd gear.
Preferably, in above-mentioned electric steering gear, described straight-line displacement reforming unit is planetary roller screw or ball-screw.
Compared with prior art, the invention has the beneficial effects as follows:
In electric steering gear provided by the invention, two low power DC servo motor are adopted jointly to drive straight-line displacement reforming unit, the power sum of two low power DC servo motor is more than or equal to the power designs value of electric rudder system, the high-power output demand of electric rudder system can be met, eliminate higher cost and the complicated processing process of research and development high power DC servomotor simultaneously, directly select the miniwatt servomotor on existing market, reduce manufacturing cost and manufacture difficulty, easily promote the use of.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or scheme of the prior art, be briefly described to describing the required accompanying drawing used in embodiment or prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of electric steering gear that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the left view of Fig. 1;
The transmission schematic diagram of the retarder of a kind of electric steering gear that Fig. 3 provides for the embodiment of the present invention.
In above-mentioned Fig. 1-Fig. 3, retarder 1, first gear 101, second gear 102, the 3rd gear 103, DC servo motor 2, straight-line displacement reforming unit 3.
Detailed description of the invention
The invention provides a kind of electric steering gear, under the prerequisite not improving manufacturing cost and manufacture difficulty, meet the high-power output demand of electric steering gear.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on embodiments of the invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
Please refer to Fig. 1-Fig. 3, the structural representation of a kind of electric steering gear that Fig. 1 provides for the embodiment of the present invention; Fig. 2 is the left view of Fig. 1; The transmission schematic diagram of the retarder of a kind of electric steering gear that Fig. 3 provides for the embodiment of the present invention.
Embodiments provide a kind of electric steering gear, comprise two DC servo motor 2, retarder 1 and straight-line displacement reforming unit 3; Wherein, two DC servo motor 2 and straight-line displacement reforming unit 3 are all in transmission connection with retarder 1, namely the output shaft of two DC servo motor 2 is all in transmission connection with retarder 1, the rotation of the output shaft of two DC servo motor 2 is combined by retarder 1, straight-line displacement reforming unit 3 is passed to after deceleration, convert rotational motion can be straight-line motion by straight-line displacement reforming unit 3, realizes straight-line motion and exports acting; And the power sum of two DC servo motor 2 is more than or equal to the larger power designs value that electric rudder system requires to possess, namely by the force action of two low power DC servo motor 2, to meet high-power output.And the electric steering gear of prior art all only adopts an electrical machine with power to export, when needing the power stage improving electric rudder system, the power of existing DC servo motor cannot reach the high-power value of electric rudder system designing requirement, if from newly manufacturing and designing satisfactory high power DC servomotor, then because manufacturing process is complicated, cost is higher, manufacture difficulty, even if produce, also cannot extensively be promoted, Applicable scope is little, and the theoretical construct size of high power DC servomotor is larger, may not necessarily be arranged in the aircraft in less space, therefore the development tendency of following miniaturization is not suitable with, the present invention adopts two low power DC servo motor 2 to substitute a DC servo motor and completes high-power output, eliminate the process of high power DC servomotor of development high cost, complex process, adopt technology maturation on existing market and cost is lower, the simple small power DC servomotor of technique, thus provide cost savings, reduce the manufacture difficulty of electric steering gear, meet the high-power output demand of electric steering gear simultaneously.
The present embodiment is optimized electric steering gear, two DC servo motor 2 and straight-line displacement reforming unit 3 are all positioned at the homonymy of retarder 1, and straight-line displacement reforming unit 3 is between two DC servo motor 2, form E character form structure arranged side by side, now, the rotation direction of the output shaft of two DC servo motor 2 is identical; The object of such design is that the installing space taken is less in order to make electric steering gear more compact structure, is easily mounted in the less aircraft in space.Certainly, the structure of electric steering gear can also be the homonymy only having a DC servo motor 2 and straight-line displacement reforming unit 3 to be positioned at retarder 1, another DC servo motor 2 is positioned at the opposite side of retarder 1, or two DC servo motor 2 are positioned at the same side of retarder 1, and straight-line displacement reforming unit 3 is positioned at the opposite side of retarder 1, when two DC servo motor 2 are positioned at the not homonymy of retarder 1, the direction of rotation of the output shaft of two DC servo motor 2, to realize the object that two 2-in-1 power of DC servo motor provide horsepower output; Be more than some technical schemes that the embodiment of the present invention provides, other structure that the horsepower output of two DC servo motor 2 can be merged is equally in protection scope of the present invention certainly.
Be optimized retarder 1, in the present embodiment, as shown in Figure 2, retarder 1 comprises first gear 101, two the second gears 102 and two the 3rd gears 103; Two the second gears 102 and two the 3rd gears 103 are all symmetricly set on the both sides of the first gear 101, and two the second gears 102 engage with the first gear 101 respectively, each 3rd gear 103 all engages with second gear 102 of homonymy, from one end of retarder 1, be namely engaged with the 3rd gear 103, second gear 102, first gear, 101, second gear 102 and the 3rd gear 103 successively; And the output shaft of each DC servo motor 2 is fixedly connected with the 3rd gear 103 respectively, the first gear 101 is fixedly connected with the turning cylinder of straight-line displacement reforming unit 3.Can find out, retarder 1 adopts two-way double reduction structure, namely each DC servo-motor 2 is through one group of two-stage gear reduction, rotate the most at last and pass to the first gear 101, driving straight-line displacement reforming unit 3 action by the first gear 101, under the prerequisite adopting the object of double reduction to be to ensure reduction ratio, reducing the diameter of gear, thus the volume of less retarder 1, facilitate the installation of electric steering gear.Certainly, two-way primary speed-down transmission or bidirectional three-step deceleration transmission etc. can also be adopted under the condition that installing space allows, not repeat them here.
In the present embodiment, the first gear 101, second gear 102 in retarder 1 and the pivot center of the 3rd gear 103 are positioned at same plane, like this, the pivot center of two DC servo motor 2 and straight-line displacement reforming unit 3 can be made to be positioned in a plane, retarder 1 is in rectangular bar structure, whole electric steering gear is flat structure, and such structure is easily mounted in space-constrained aircraft; Certainly, the pivot center of five gears can not also in same plane, as long as can realize transmission and not affect installing.
More preferably, in the present embodiment, the first gear 101, second gear 102 is parallel with the pivot center of the 3rd gear 103, then two DC servo motor 2 are also parallel with the pivot center of straight-line displacement reforming unit 3, correspondingly, five gears are cylindrical wheel, and driving efficiency is high; The axis of certain five gears can be not parallel, and correspondingly, gear adopts suitable finishing bevel gear cuter etc., does not repeat at this.
In the present embodiment, straight-line displacement reforming unit 3 adopts planetary roller screw or ball-screw, to realize convert rotational motion as straight-line motion.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. an electric steering gear, is characterized in that, comprises two DC servo motor (2), retarder (1) and straight-line displacement reforming unit (3);
The power sum of two described DC servo motor (2) is more than or equal to the power designs value of electric rudder system;
Two described DC servo motor (2) and described straight-line displacement reforming unit (3) are all in transmission connection with described retarder (1);
Two described DC servo motor (2) and described straight-line displacement reforming unit (3) are all positioned at the homonymy of described retarder (1), and described straight-line displacement reforming unit (3) is positioned between two described DC servo motor (2), the output shaft of two described DC servo motor (2) turns to identical.
2. electric steering gear according to claim 1, is characterized in that, described retarder (1) comprises first gear (101), two the second gears (102) and two the 3rd gears (103);
Two described second gears (102) and two described 3rd gears (103) are all symmetrically distributed in the both sides of described first gear (101);
Described first gear (101) and two described second gears meshing (102);
Described 3rd gear (103) engages with described second gear (102);
The output shaft of each described DC servo motor (2) respectively three gear (103) described with is fixedly connected with;
Described first gear (101) is fixedly connected with the turning cylinder of described straight-line displacement reforming unit (3).
3. electric steering gear according to claim 2, is characterized in that, the pivot center of described first gear (101), described second gear (102) and described 3rd gear (103) is positioned at same plane.
4. electric steering gear according to claim 3, is characterized in that, described first gear (101), described second gear (102) are parallel with the pivot center of described 3rd gear (103).
5. the electric steering gear according to any one of claim 1-4, is characterized in that, described straight-line displacement reforming unit (3) is planetary roller screw or ball-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450635.7A CN103482059B (en) | 2013-09-27 | 2013-09-27 | Electric steering engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450635.7A CN103482059B (en) | 2013-09-27 | 2013-09-27 | Electric steering engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103482059A CN103482059A (en) | 2014-01-01 |
| CN103482059B true CN103482059B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450635.7A Active CN103482059B (en) | 2013-09-27 | 2013-09-27 | Electric steering engine |
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| Country | Link |
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| CN (1) | CN103482059B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875876B (en) * | 2015-06-11 | 2017-08-15 | 上海优伟斯智能系统有限公司 | A kind of double steering engine output system |
| CN105035310A (en) * | 2015-06-17 | 2015-11-11 | 北京航天控制仪器研究所 | Electric steering engine |
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- 2013-09-27 CN CN201310450635.7A patent/CN103482059B/en active Active
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| CN103482059A (en) | 2014-01-01 |
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Address after: 611130 Changan Road, Liucheng, Wenjiang District, Chengdu, Sichuan Province, No. 198 Patentee after: Sichuan Aerospace beacon Servo Control Technology Co., Ltd. Address before: 611100 Liucheng Road, Wenjiang, Sichuan, No. Changan Road, No. 198 Patentee before: Fenghuo Machine Works of China Aerospace Science and Technology Corporation |