CN210526882U - Small-size wide stroke electric steering engine of big power arm - Google Patents
Small-size wide stroke electric steering engine of big power arm Download PDFInfo
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- CN210526882U CN210526882U CN201921048319.6U CN201921048319U CN210526882U CN 210526882 U CN210526882 U CN 210526882U CN 201921048319 U CN201921048319 U CN 201921048319U CN 210526882 U CN210526882 U CN 210526882U
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Abstract
The utility model relates to a wide stroke electric steering engine of small-size big power arm, including the exterior structure, the exterior structure includes the motor, still includes: the lower part of motor sets up the casing, the side of casing sets up the potentiometer subassembly, the motor is connected with main drive mechanism, the motor with main drive mechanism installs for the casing homonymy, main drive mechanism passes through second grade reduction structure and connects shift fork and lead screw subassembly for the motor passes through main drive mechanism's transmission, and rethread lead screw subassembly drives the shift fork and reciprocates. The utility model has the advantages that: the novel rudder system has the advantages that the novel rudder system is simple in structure, the transmission actuating mechanism in the limited space in the missile cabin body is reasonably utilized, the functions of small space and large stroke of the rudder system and large torque of the micro steering engine are realized, the function of large reduction ratio is realized, the miniaturization and the integration of the rudder system are realized, the manufacturability of system parts is improved, and the product cost is reduced.
Description
Technical Field
The utility model relates to a small-size big arm wide stroke electric steering wheel.
Background
The steering engine system belongs to a typical servo system, is applied to an aircraft guidance control system, and controls the rotation angle of a control surface through the power input of a motor and a speed reduction and force amplification mechanism, so that the flight attitude of the whole weapon system is controlled, and the aim of accurate guidance is finally achieved. With the innovation of a new technology, the steering engine develops towards high precision, high speed and miniaturization, so that the space occupied by the actuating mechanism is smaller and smaller, and higher requirements are provided for important indexes such as transmission torque, precision, stroke, mass, volume and the like of the transmission mechanism. The existing similar device has the problems of small transmission speed reduction ratio, short force arm, large volume, great limitation on the stroke, low reliability of a servo mechanism and the like in aerospace products.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a small-size big arm wide stroke electric steering wheel is provided, its reliability is high.
In order to solve the technical problem, the utility model discloses a technical scheme is: a small-size wide big power arm wide stroke electric steering engine includes: an outer structure, the outer structure includes the motor, its characterized in that still includes: the lower part of motor sets up the casing, the side of casing sets up the potentiometer subassembly, the motor is connected with main drive mechanism, the motor with main drive mechanism installs for the casing homonymy, main drive mechanism passes through second grade reduction structure and connects shift fork and screw assembly for the motor drives the shift fork through main drive mechanism's transmission, and rethread screw assembly reciprocates, screw assembly includes lead screw, lead screw gear, screw nut, the lead screw passes through the bearing and drives screw nut and reciprocate, and screw nut drives the shift fork through joint bearing and rotates round the other end of shift fork.
Compared with the prior art, the utility model discloses following profitable technological effect has:
simple structure, including the exterior structure, the exterior structure includes the motor, still includes: the lower part of motor sets up the casing, the side of casing sets up the potentiometer subassembly, the motor is connected with main drive mechanism, the motor with main drive mechanism installs for the casing homonymy, main drive mechanism passes through second grade reduction structure and connects shift fork and lead screw subassembly for the motor passes through main drive mechanism's transmission, and rethread lead screw subassembly drives the shift fork and reciprocates. The novel rudder system has the advantages of large force arm, wide stroke and small volume, reasonably utilizes the transmission actuating mechanism in the limited space in the missile cabin body, realizes the functions of small space and large stroke of the rudder system and large torque of the micro steering engine, has the function of large reduction ratio, realizes the miniaturization, miniaturization and integration of the rudder system, improves the manufacturability of system parts, and reduces the cost of products.
Drawings
FIG. 1 is a schematic structural view of a small-sized large arm wide-stroke electric steering engine of the present invention;
FIG. 2 is a schematic view of the main drive mechanism of the present invention;
fig. 3 is a schematic diagram of the two-stage deceleration structure of the present invention;
FIG. 4 is a schematic structural view of a fork and a lead screw assembly of the present invention;
fig. 5 is a schematic view of the stroke range structure of the present invention.
Schematic of the reference numerals
1-motor, 2-motor gear, 3-transmission gear, 4-screw rod gear 5-screw rod nut, 6-joint bearing, 7-shifting fork, 8-nut, 9-bearing, 10-screw rod, 11-shell, 12-potentiometer component
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, the utility model discloses a small-size big arm wide stroke electric steering engine, including the exterior structure, the exterior structure includes motor 1, still includes: the lower part of motor 1 sets up casing 11, the side of casing 11 sets up potentiometer subassembly 12, motor 1 is connected with final drive mechanism, motor 1 with final drive mechanism is for 11 homonymy installations of casing, final drive mechanism passes through second grade reduction structure and connects shift fork and lead screw subassembly for motor 1 drives the shift fork through final drive mechanism's transmission, and rethread lead screw subassembly reciprocates, lead screw subassembly includes lead screw 10, lead screw gear 4, lead screw nut 5, lead screw 10 drives lead screw nut 5 through bearing 9 and reciprocates, and lead screw nut 5 drives shift fork 7 through joint bearing 6 and rotates round the other end of shift fork 7.
In one embodiment, the main drive mechanism comprises: the motor gear 2, motor 1 and motor gear 2 are coaxial to be linked firmly, drive lead screw gear 4 through intermediate drive gear 3, lead screw gear 4 and lead screw 10 are coaxial to be linked firmly through nut 8.
In one embodiment, the entire length of the lead screw 10 is the length of the powered arm.
In one embodiment, the rotating end of the shift fork 7 is designed as a structure in which the shift fork is integrated with the rotating shaft.
In one embodiment, a square hole is arranged in the middle of the shifting fork to drive the control surface.
In one embodiment, the secondary speed reducing structure is a speed reducing structure with a long force arm at the end of the screw shifting fork.
In one embodiment, the transmission gear is designed in a mode that a large gear and a small gear are coaxially fixedly connected.
In one embodiment, no nut stops are provided at either end of the lead screw 10.
In one embodiment, the number of the square holes is two.
In one embodiment, the lead screw 10 drives the lead screw nut 5 to move up and down through the bearing 9, and the shifting fork 7 is contacted with the outer circle of the bearing 9 when passing through the limit positions at the two ends.
The overall structure of the steering engine shown in fig. 1 is that the external structure of the steering engine mainly comprises a motor 1, a shell 11 and a potentiometer assembly 12.
The utility model discloses a main drive mechanism is as shown in fig. 2, and motor 1 links firmly with 2 coaxial motor gear, drives lead screw gear 4 through intermediate drive gear 3, and lead screw gear 4 links firmly through the nut 8 is coaxial with lead screw (10). The lead screw 10 drives the lead screw nut 5 to move up and down through the bearing 9, and the lead screw nut 5 drives the shifting fork 7 to rotate around the other end of the shifting fork 7 through the knuckle bearing 6.
In one embodiment, the lead screw 10 drives the shifting fork 7 to move around the other end through the lead screw nut 5 and the joint bearing 6, the whole length of the lead screw 10 is the length of the power arm, power transmission of the motor 1 and the main transmission mechanism is effectively saved, and the service life is prolonged.
In one embodiment, the rotating end of the shifting fork 7 is designed into a design structure that the shifting fork and the rotating shaft are integrated, as shown in fig. 4, the square hole is arranged in the middle of the shifting fork 7 to drive the control surface, so that the error between the shifting fork and the output rotating shaft is reduced, the control surface is directly installed in the installation groove of the shifting fork 7, direct control is realized, the control precision and sensitivity are improved, and meanwhile, the processing technological performance is improved.
As shown in fig. 3, a motor gear 2 of the motor 1 is coaxially and fixedly connected, and power is input to a screw rod gear 4 through a transmission gear 3 in the middle. The transmission gear is designed to be a mode that the big gear and the small gear are coaxially and fixedly connected, the whole transmission forms a two-stage speed reduction mode, the speed reduction ratio is greatly improved through the speed reduction structure of the long force arm at the shifting fork end of the screw rod, and the input of power is increased.
As shown in fig. 5, the motor 1 drives the shifting fork to move up and down through the transmission of the gear and the lead screw nut, and no nut limiting device is arranged at the two ends of the lead screw 10, so that the maximum effective acting stroke of the lead screw is ensured. And the structure of the shifting fork is reasonably optimized, and when the nut moves to the limit position, the shifting fork is contacted with the outer circle of the bearing, so that the mechanism is prevented from being instantaneously locked. The utility model discloses on the basis of long stroke, when the extreme position through both ends, the excircle contact of shift fork and bearing (9) can not lead to whole actuating mechanism card dead in the twinkling of an eye. And the motor and the main transmission mechanism are arranged at the same side, so that the utilization rate of the space is maximized.
The utility model discloses a following profitable technological effect:
simple structure includes: an outer structure including a motor, further comprising: the lower part of motor sets up the casing, the side of casing sets up the potentiometer subassembly, the motor is connected with main drive mechanism, the motor with main drive mechanism installs for the casing homonymy, main drive mechanism passes through second grade reduction structure and connects shift fork and screw assembly for the motor drives the shift fork through main drive mechanism's transmission, and rethread screw assembly reciprocates, screw assembly includes lead screw, lead screw gear, screw nut, the lead screw passes through the bearing and drives screw nut and reciprocate, and screw nut drives the shift fork through joint bearing and rotates round the other end of shift fork. The novel rudder system has the advantages of large force arm, wide stroke and small volume, reasonably utilizes the transmission actuating mechanism in the limited space in the missile cabin body, realizes the functions of small space and large stroke of the rudder system and large torque of the micro steering engine, has the function of large reduction ratio, realizes the miniaturization, miniaturization and integration of the rudder system, improves the manufacturability of system parts, and reduces the cost of products.
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 (10)
1. The utility model provides a wide stroke electric steering engine of small-size big power arm which characterized in that, includes external structure, external structure includes motor (1), still includes: the lower part of motor (1) sets up casing (11), the side of casing (11) sets up potentiometer subassembly (12), motor (1) is connected with final drive mechanism, motor (1) with final drive mechanism is for casing (11) homonymy installation, final drive mechanism passes through second grade reduction structure and connects shift fork and screw subassembly for motor (1) is through final drive mechanism's transmission, and rethread screw subassembly drives the shift fork and reciprocates, screw subassembly includes lead screw (10), lead screw gear (4), lead screw nut (5), lead screw (10) drive lead screw nut (5) through bearing (9) and reciprocate, and lead screw nut (5) drive shift fork (7) through joint bearing (6) and rotate round the other end of shift fork (7).
2. The small-sized large force arm wide-stroke electric steering engine according to claim 1, wherein the main transmission mechanism comprises: the motor gear (2), motor (1) and motor gear (2) are coaxial to be linked firmly, drive lead screw gear (4) through intermediate drive gear (3), lead screw gear (4) and lead screw (10) are coaxial to be linked firmly through nut (8).
3. A small-sized large force arm wide-stroke electric steering engine according to claim 2, characterized in that the whole length of the lead screw (10) is the length of the power arm.
4. The small-sized large force arm wide-stroke electric steering engine according to claim 1, wherein the rotating end of the shifting fork (7) is designed into a structure in which the shifting fork and the rotating shaft are integrated.
5. The small-sized large force arm wide-stroke electric steering engine according to claim 4, wherein a square hole is formed in the middle of the shifting fork to drive a control surface.
6. The small-sized large force arm wide-stroke electric steering engine according to claim 5, wherein the secondary speed reduction structure is a speed reduction structure with a long force arm at the end of a screw shifting fork.
7. The small-sized large force arm wide-stroke electric steering engine according to claim 2, wherein the transmission gear is designed in a mode that a large gear and a small gear are coaxially and fixedly connected.
8. The small-sized large force arm wide-stroke electric steering engine according to claim 1, characterized in that no nut limiting device is arranged at both ends of the screw rod (10).
9. The small-sized large force arm wide-stroke electric steering engine according to claim 5, wherein the number of the square holes is two.
10. The small-sized large force arm wide-stroke electric steering engine according to claim 1, wherein the lead screw (10) drives the lead screw nut (5) to move up and down through the bearing (9), and when the lead screw passes through the limit positions at two ends, the shifting fork (7) is in contact with the outer circle of the bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921048319.6U CN210526882U (en) | 2019-07-05 | 2019-07-05 | Small-size wide stroke electric steering engine of big power arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921048319.6U CN210526882U (en) | 2019-07-05 | 2019-07-05 | Small-size wide stroke electric steering engine of big power arm |
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| Publication Number | Publication Date |
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| CN210526882U true CN210526882U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921048319.6U Active CN210526882U (en) | 2019-07-05 | 2019-07-05 | Small-size wide stroke electric steering engine of big power arm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254752A (en) * | 2019-07-05 | 2019-09-20 | 贵州航天控制技术有限公司 | A kind of small-sized big arm of force wide row journey electric steering engine |
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2019
- 2019-07-05 CN CN201921048319.6U patent/CN210526882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254752A (en) * | 2019-07-05 | 2019-09-20 | 贵州航天控制技术有限公司 | A kind of small-sized big arm of force wide row journey electric steering engine |
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