CN210526881U - Long fork type control surface driving mechanism - Google Patents
Long fork type control surface driving mechanism Download PDFInfo
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- CN210526881U CN210526881U CN201921044202.0U CN201921044202U CN210526881U CN 210526881 U CN210526881 U CN 210526881U CN 201921044202 U CN201921044202 U CN 201921044202U CN 210526881 U CN210526881 U CN 210526881U
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Abstract
The present disclosure relates to a long fork control surface driving mechanism, including: the motor, motor fixed mounting links firmly with the motor gear is coaxial on the casing of steering wheel, motor gear and drive gear meshing, drive gear connects lead screw nut and splines the structure, lead screw nut splines the structure and includes the lead screw, lead screw and nut meshing to realize the transmission that lead screw nut reciprocated lead screw nut splines the structural arm of force structure that has the shift fork that sets up of spline, arm of force structure has first bearing realize under the drive of nut that the shift fork passes through first bearing drive rudder face and is rotatory round the steering spindle. The utility model has the advantages that: simple structure, can be according to the use, the size of adjustment structure to the use of adaptation different model steering engines, with low costs, application scope is wide.
Description
Technical Field
The utility model relates to a long fork control surface actuating mechanism.
Background
The guided weapon is one kind of space flying weapon comprising electronic equipment cabin, engine, control system, remote sensing system, etc. The guided weapon needs a computer to send different instructions in the flying process, and a control surface is controlled to rotate around a control shaft to generate control force and moment, so that different flying attitude angles are met, the guided missile can fly according to a set target track, wherein the driving moment and the resistance moment generated by a steering engine in the flying process are factors which need to be considered particularly in the design process. In the design process, due to factors such as space limitation of the steering engine, reasonable optimization of the control moment of the control surface is often needed. Meanwhile, a screw nut rotation stopping structure needs to be reasonably designed so as to realize the transmission function and efficiency. The force arm of the prior art is short, so that the stress of a motor and a lead screw is large, and finally, the defects of low transmission efficiency and weak bearing capacity occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a long fork control surface actuating mechanism is provided, its simple structure, the reliability is high.
In order to solve the technical problem, the utility model discloses a technical scheme is: a long fork control surface driving mechanism is characterized by comprising: the motor, motor fixed mounting links firmly with the motor gear is coaxial on the casing of steering wheel, motor gear and drive gear meshing, drive gear connects lead screw nut and splines the structure, lead screw nut splines the structure and includes the lead screw, lead screw and nut meshing to realize the transmission that lead screw nut reciprocated lead screw nut splines the structural arm of force structure that has the shift fork that sets up of spline, arm of force structure has first bearing realize under the drive of nut that the shift fork passes through first bearing drive rudder face and is rotatory round the steering spindle.
Compared with the prior art, the utility model discloses following profitable technological effect has:
simple structure includes: the motor is fixedly installed on the shell of the steering engine and coaxially and fixedly connected with the motor gear, the motor gear is meshed with the transmission gear, the transmission gear is connected with the screw nut rotation stopping structure, the screw nut rotation stopping structure is provided with a force arm structure with a shifting fork, the size of the structure can be adjusted according to use to adapt to use of the steering engines of different models, and the steering engine control device is low in cost and wide in application range.
Drawings
Fig. 1 is a schematic structural diagram of a driving mechanism system of a long fork control surface driving mechanism of the invention;
FIG. 2 is a schematic view of the force arm structure of the long fork control surface driving mechanism of the present invention;
fig. 3 is a schematic view of the screw nut rotation stopping structure of the long fork control surface driving mechanism of the present invention.
Schematic of the reference numerals
1-motor, 2-motor gear, 3-transmission gear, 4-screw gear,
5-lead screw bearing, 6-lead screw, 7-nut, 8-shifting fork,
9-the first bearing, 10-the second bearing,
11-rotation stopping plate, 12-third bearing
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but these examples are only illustrative and do not limit the scope of the present invention.
Referring to fig. 1 to 3, the long fork control surface driving mechanism of the present invention includes: motor 1, motor 1 fixed mounting links firmly with the motor gear 2 is coaxial on the casing of steering wheel, motor gear 2 and the meshing of drive gear 3, drive gear 3 is connected screw nut and is only changeed the structure, screw nut only changes the structure and includes lead screw 6, lead screw 6 and the meshing of nut 7 to realize the transmission that screw nut reciprocated screw nut only changes the structural arm of force structure that sets up and have shift fork 8 of structure, the arm of force structure has first bearing 9 realize under nut 7's the drive that shift fork 8 passes through first bearing 9 drive rudder face and rotate round the rudder axle.
In one embodiment, the lead screw nut rotation stopping structure further comprises: the lead screw gear 4 and the rotation stopping plate 11 with the bearing sliding groove type structure, the transmission gear 3 drives the lead screw gear 4 to rotate, and the lead screw gear 4 is fixedly connected with the lead screw 6.
In one embodiment, the rotation preventing plate 11 of the bearing slide groove type structure includes: the second bearing 10 and a sliding groove arranged on the rotation stopping plate 11, wherein the second bearing 10 moves up and down along the sliding groove of the rotation stopping plate 11.
In one embodiment, the anti-roll plate 11 is fixedly mounted inside the rudder housing.
In one embodiment, the lead screw 6 is mounted inside the housing of the steering engine by a lead screw bearing 5.
In one embodiment, the nut 7 is arranged in the middle of the lead screw 6.
In one embodiment, a third bearing 12 is provided for reducing frictional wear at a location on the nut 7 relative to the second bearing 10.
In one embodiment, the third bearing 12 is connected to the fork 8.
In one embodiment, the long fork control surface driving mechanism specifically includes: the device comprises a motor 1, a motor gear 2, a transmission gear 3, a screw rod gear 4, a screw rod bearing 5, a screw rod 6, a nut 7, a shifting fork 8, a first bearing 9, a second bearing 10, a rotation stopping plate 11, a third bearing 12 and the like. The motor 1 is fixedly installed on a shell of the steering engine and coaxially fixedly connected with a motor gear 2, the motor gear 2 is meshed with a transmission gear 3, the transmission gear 3 drives a screw rod gear 4 to rotate, the gear 4 is fixedly connected with a screw rod 6, the screw rod 6 is installed inside the shell of the steering engine through a screw rod bearing 5, the screw rod 6 is meshed with a nut 7, and the shifting fork 8 is driven by the nut 7 to drive the control surface to rotate around the control shaft through a first bearing 9 so as to achieve an ideal flight attitude angle of the control surface.
As a specific embodiment, the utility model discloses a lead screw nut spline structure is shown in fig. 3, and whole structure mainly constitutes: the screw rod 6, the nut 7, the second bearing 10, the rotation stopping plate 11 and the third bearing 12. When shift fork 8 passes through second bearing 12 and drives nut 7 motion, nut 7 can produce axial pivoted power, then can not form the motion that reciprocates, through design second bearing 10 and rotation stopping board 11, will rotate stopping board 11 fixed mounting inside the rudder casing, then second bearing 10 can reciprocate along the groove of rotation stopping board 11 to restriction screw nut 7's rotation that can be fine, make whole device possess good transmissibility ability. Meanwhile, the design of the third bearing 12 reduces frictional wear, and greatly improves transmission precision and reliability.
As a specific embodiment, when the screw 6 drives the nut 7 to move axially, an upward or downward driving force F1 is generated on the shifting fork, the shifting fork drives the control surface to rotate around the axis of the first bearing 9, the first bearing 9 is mounted on the steering engine housing, and the length of the driving force arm is L1; the steering engine is influenced by resistance F2 such as wind resistance and the like in the flying process, so that when the control surface rotates around the axis of the first bearing 9, the generated equivalent resistance arm is L2; according to power balance law F1 XL 1 ═ F2 XL 2, when design drive power arm L1 is great, can make drive control power F1 reduce, realize the load reduction of whole steering wheel, can be quick carry out the corner manipulation to the control plane, still can reduce the transmission error that causes because mechanical structure's reason, increase the control accuracy of control plane corner, reach the purpose of accurate guidance, and simultaneously, the frictional wear of whole device has been reduced, and service life is prolonged.
The utility model discloses a following profitable technological effect:
firstly, simple structure includes: the motor is fixedly installed on the shell of the steering engine and coaxially and fixedly connected with the motor gear, the motor gear is meshed with the transmission gear, the transmission gear is connected with the screw nut rotation stopping structure, the screw nut rotation stopping structure is provided with a force arm structure with a shifting fork, the size of the structure can be adjusted according to use to adapt to use of the steering engines of different models, and the steering engine control device is low in cost and wide in application range.
Second, the utility model discloses a load reduction of whole steering wheel is realized to the arm of force structural design of long shift fork, can be fast, sensitive carry out the corner to the control surface and control, still can reduce the transmission error that causes because mechanical structure's reason, increase the control accuracy of control surface corner, reach the purpose of accurate guidance, simultaneously, reduce the frictional wear of whole device, increase of service life.
And thirdly, the bearing sliding groove type rotation stopping structure is designed, so that the whole device has good transmission performance, and a transmission effect that the screw nut moves up and down is formed. Meanwhile, the design of the bearing sliding groove type rotation stopping structure reduces friction and abrasion, and greatly improves transmission precision and reliability.
Fourthly, the motor inputs power into the whole servo mechanism through the intermediate transmission gear, has a large reduction ratio, is stable and reliable in transmission, and can be used on the same type of steering engine.
Although the preferred embodiments of the present invention have been disclosed above, the present invention is not limited thereto. It is obvious that not all embodiments need be, nor cannot be exhaustive here. Any person skilled in the art can change and modify the research scheme of the present invention by adopting the design and content of the above disclosed embodiments without departing from the spirit and scope of the present invention, and therefore, any simple modification, parameter change and modification of the above embodiments by the research entity of the present invention all belong to the protection scope of the scheme of the present invention.
Claims (8)
1. A long fork control surface driving mechanism is characterized by comprising: motor (1), motor (1) fixed mounting links firmly with motor gear (2) is coaxial on the casing of steering wheel, motor gear (2) and drive gear (3) meshing, drive gear (3) are connected screw nut and are splines the structure, screw nut splines the structure and includes lead screw (6), lead screw (6) and nut (7) meshing to realize the transmission that screw nut reciprocated screw nut splines the last arm of force structure that has shift fork (8) that sets up of structure, the arm of force structure has first bearing (9) it is rotatory round the steering shaft to realize shift fork (8) through first bearing (9) drive rudder face under the drive of nut (7).
2. The long fork control surface drive mechanism of claim 1, wherein the lead screw nut rotation stop structure further comprises: the lead screw gear (4) and the rotation stopping plate (11) with a bearing sliding groove type structure, the transmission gear (3) drives the lead screw gear (4) to rotate, and the lead screw gear (4) is fixedly connected with the lead screw (6).
3. Long fork rudder surface drive mechanism according to claim 2, characterised in that the anti-rotation plate (11) of the bearing-runner type structure comprises: the second bearing (10) and a sliding groove arranged on the rotation stopping plate (11) are arranged, and the second bearing (10) moves up and down along the sliding groove of the rotation stopping plate (11).
4. Long fork rudder surface drive mechanism according to claim 3, characterised in that the rotation stop plate (11) is fixedly mounted inside the rudder housing.
5. Long fork control surface drive according to claim 2, characterized in that the screw (6) is mounted inside the housing of the steering engine by means of a screw bearing (5).
6. Long fork control surface drive according to claim 5, characterized in that the nut (7) is arranged in the middle of the lead screw (6).
7. Long fork rudder surface drive mechanism according to claim 4, characterised in that a third bearing (12) is provided for reducing frictional wear at a position on the nut (7) relative to the second bearing (10).
8. Long fork control surface drive according to claim 7, characterized in that the third bearing (12) is connected with the fork (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921044202.0U CN210526881U (en) | 2019-07-05 | 2019-07-05 | Long fork type control surface driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921044202.0U CN210526881U (en) | 2019-07-05 | 2019-07-05 | Long fork type control surface driving mechanism |
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| Publication Number | Publication Date |
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| CN210526881U true CN210526881U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921044202.0U Active CN210526881U (en) | 2019-07-05 | 2019-07-05 | Long fork type control surface driving mechanism |
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| CN (1) | CN210526881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254751A (en) * | 2019-07-05 | 2019-09-20 | 贵州航天控制技术有限公司 | A kind of long fork type rudder face driving mechanism |
-
2019
- 2019-07-05 CN CN201921044202.0U patent/CN210526881U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254751A (en) * | 2019-07-05 | 2019-09-20 | 贵州航天控制技术有限公司 | A kind of long fork type rudder face driving mechanism |
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