CN114812294A - High-overload-resistant electric steering engine with telescopic wings - Google Patents
High-overload-resistant electric steering engine with telescopic wings Download PDFInfo
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- CN114812294A CN114812294A CN202210197193.9A CN202210197193A CN114812294A CN 114812294 A CN114812294 A CN 114812294A CN 202210197193 A CN202210197193 A CN 202210197193A CN 114812294 A CN114812294 A CN 114812294A
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000013016 damping Methods 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 230000009977 dual effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
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- 241000272525 Anas platyrhynchos Species 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/01—Arrangements thereon for guidance or control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/60—Steering arrangements
- F42B10/62—Steering by movement of flight surfaces
- F42B10/64—Steering by movement of flight surfaces of fins
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- Steering Controls (AREA)
Abstract
The invention provides a high overload resistant telescopic wing electric steering engine which comprises a shell and four groups of single-channel steering engine mechanisms, wherein the four groups of single-channel steering engine mechanisms respectively occupy one quadrant in space, a cantilever supporting seat is arranged on the inner wall of the shell in a radially extending mode, the cantilever supporting seat has elasticity, the single-channel steering engine mechanisms are installed on the cantilever supporting seat, an installation groove is formed in the end face of the cantilever supporting seat, a disc spring and a rubber damping sheet are arranged in the installation groove, and the disc spring and the rubber damping sheet are located between the single-channel steering engine mechanisms and the cantilever supporting seat. The single-channel steering engine mechanism is supported and fixed by designing the cantilever supporting seat structure, can provide a damping and buffering effect, realizes the dual functions of supporting and damping, realizes the damping and buffering effect under a high overload working condition through the disc spring and the rubber damping sheet, protects the single-channel steering engine mechanism, and can enable the single-channel steering engine mechanism to slightly translate in the axial direction and quickly recover without influencing the position of a steering shaft in the working time due to the deformation of the disc spring and the rubber damping sheet.
Description
Technical Field
The invention belongs to the technical field of electric servo systems, and particularly relates to a high overload resistant telescopic wing electric steering engine.
Background
In recent years, the requirements of modern war on the guided ammunition are developing towards high efficiency and intelligence, and the steering engine on the missile is also required to be researched and designed for high overload resistance, high efficiency and the like as an important actuating mechanism of the guided ammunition control system.
The current guided ammunition mostly adopts a single-channel simple telescopic steering engine, a multi-channel duck steering engine or a micro pulse steering engine as a correction execution mechanism to modify the guided ammunition. The control surface of the single-channel simple telescopic steering engine only has two telescopic states in the ammunition flying process, the steering control efficiency is low, the guidance precision is low, the effective wingspan is short, and the high-precision striking requirement cannot be met; the hardware control system of the traditional multi-channel duck steering engine is relatively complex, the required installation space is large, the cost is high, and optimization and transformation are also required; the trajectory correction by using the micro-pulse has the characteristics of short response time, high response speed and the like, but can only be corrected at a certain moment or a certain change moment.
The existing steering engine product for missile making is difficult to meet the conditions of quick unfolding and normal working after over 18000g of axial high overload impact. Therefore, aiming at the problems, the research trend that the telescopic steering engine actuator with high overload resistance is formed into the current steering engine for missile control is designed.
Disclosure of Invention
The invention aims to provide an anti-high-overload telescopic wing electric steering engine which can at least solve part of defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an anti high flexible wing electric steering wheel that transships, includes the shell and sets up four group's single channel steering wheel mechanisms in the shell, four group's single channel steering wheel mechanisms respectively account for a quadrant on the space, the shell inner wall is equipped with the cantilever bearing along radial extension, the cantilever bearing has elasticity, single channel steering wheel mechanism installs on this cantilever bearing, the terminal surface of cantilever bearing is equipped with the mounting groove, be equipped with dish spring and rubber shock attenuation piece in the mounting groove, dish spring and rubber shock attenuation piece are located between single channel steering wheel mechanism and the cantilever bearing.
Further, the cantilever supporting seat and the shell are integrally formed.
Furthermore, the cantilever supporting seat is wedge-shaped, or the joint of the cantilever supporting seat and the shell is a chamfer.
Furthermore, a damping piece is arranged at the installation position of the inner side wall of the shell corresponding to the single-channel steering engine mechanism.
Furthermore, single channel steering wheel mechanism includes single channel frame, brushless motor, gear assembly, ball screw subassembly, steering wheel axle subassembly and angle sensor, brushless motor, gear assembly, ball screw subassembly are installed on single channel frame, gear assembly and brushless motor's rotation axis connection, the ball screw subassembly is connected with the gear assembly transmission, the steering wheel axle subassembly is connected with the ball screw subassembly transmission, the rudder wing department that corresponds the steering wheel axle subassembly on the shell lateral wall is equipped with the recess that supplies the rudder wing to expand to stretch out, angle sensor passes through the connecting rod linkage with the steering wheel axle subassembly, measures the feedback to the output angle, realizes steering wheel closed-loop control.
Further, the gear assembly includes motor gear and lead screw gear, motor gear with brushless motor's rotating shaft connection, motor gear and lead screw gear meshing, lead screw gear and ball screw subassembly transmission are connected.
Further, the ball screw assembly comprises a screw rod, a nut, a guide rail, an angular contact ball bearing and a bearing cover, two ends of the screw rod are installed on the single-channel frame through the angular contact ball bearing, one end of the screw rod is in transmission connection with the gear assembly, the nut is in sliding connection with the screw rod, the guide rail is parallel to the screw rod, one side of the nut is in sliding connection with the guide rail, the bearing cover compresses the screw rod and the angular contact ball bearing, and the steering shaft assembly is connected with the nut.
Furthermore, a small disc spring is arranged between the angular contact ball bearing and the single-channel frame, and an adjusting gasket is arranged between the bearing cover and the single-channel frame.
Further, the rudder shaft subassembly includes rudder shaft, shift fork, rudder wing, locking slider, expansion torsional spring and locking spring, be equipped with rudder wing expansion slot along its axis on the rudder shaft, the root of rudder wing articulates in rudder wing expansion slot through the round pin axle, the both ends of expanding the torsional spring are connected respectively in the round pin axle both ends, and the middle part of expanding the torsional spring supports in the root of rudder wing, and the elasticity that provides through torsional deformation promotes the rudder wing and expandes, locking slider and locking spring are located the opposite side of rudder wing expansion direction in rudder wing expansion slot, and the locking slider promotes the root of withstanding expansion rudder wing through locking spring, the one end and the ball screw subassembly of shift fork are connected, and the other end is connected with the rudder shaft transmission, drives the rudder shaft through the shift fork motion and rotates around self axis.
Furthermore, the root of the rudder wing is provided with a concave cambered surface, the locking sliding block is provided with a convex cambered surface matched with the concave cambered surface, and the concave cambered surface and the convex cambered surface are matched to form self-locking.
Compared with the prior art, the invention has the beneficial effects that:
(1) the high-overload-resistant telescopic wing electric steering engine provided by the invention has the advantages that the transmission part of the single-channel steering engine is embedded into the single-channel frame through reasonable layout and lightweight design, the structure is compact, the space utilization rate is improved, and the single channels are mutually independent; simultaneously, the single-channel steering engine mechanism is supported and fixed by designing a cantilever supporting seat structure, and can provide a damping and buffering effect to realize the dual functions of supporting and damping.
(2) The high-overload-resistant telescopic wing electric steering engine provided by the invention has the advantages that the gear assembly, the ball screw assembly, the steering shaft assembly and other parts are in modular design, the processing and the assembly are easy, and the manufacturing cost is low.
(3) The high overload resistant telescopic wing electric steering engine provided by the invention fully utilizes the designs of angular contact ball bearing support, cantilever structure, disc spring and rubber damping sheet damping buffer and the like, so that the ball screw rod transmission mechanism can still stably transmit and normally work under the condition of high overload impact, and the survival capability of the steering engine under the severe environment of high overload impact is greatly improved.
(4) According to the high overload resistant telescopic wing electric steering engine, the torsion spring and the cam mechanism are adopted to realize unfolding and locking of the rudder wing, extra energy is not needed, the rudder wing can be rapidly unfolded after high overload impact is guaranteed, and the functions of rebound prevention and positioning locking are achieved after unfolding.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an electric steering engine with high overload resistant telescopic wings according to the present invention;
FIG. 2 is a schematic cross-sectional view of an electric actuator with high overload resistance for telescopic wings according to the present invention;
FIG. 3 is a schematic top view of an electric actuator with high overload resistant telescopic wings according to the present invention;
FIG. 4 is a force-bearing schematic diagram of the cantilever support base in the embodiment of the invention;
FIG. 5 is a schematic structural view of a ball screw assembly in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a rudder shaft assembly in an embodiment of the present invention;
fig. 7 is a schematic unfolding view of a rudder wing of a rudder shaft assembly in an embodiment of the present invention.
Description of reference numerals: 1. a housing; 2. a single channel frame; 3. a brushless motor; 4. a ball screw assembly; 5. a motor gear; 6. a screw gear; 7. a groove; 8. a rudder wing; 9. a rudder shaft bracket; 10. a rudder shaft assembly; 11. a connecting rod; 12. an angle sensor; 13. a disc spring; 14. a rubber shock-absorbing sheet; 15. a cantilever support base; 16. a guide rail; 17. a nut; 18. a screw rod; 19. a bearing cap; 20. adjusting the gasket; 21. angular contact ball bearings; 22. a small disc spring; 23. a rudder shaft; 24. a rudder wing expansion slot; 25. unfolding the torsion spring; 26. locking the sliding block; 27. a locking spring; 28. a shifting fork; 29. a concave arc surface; 30. a convex arc surface; 31. a shock absorbing member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, this embodiment provides a high overload resistant telescopic wing electric steering engine, which includes a housing 1 and four sets of single-channel steering engine mechanisms disposed in the housing 1, each of the four sets of single-channel steering engine mechanisms occupies a quadrant in space, a cantilever support seat 15 is disposed on an inner wall of the housing 1 along a radial direction, the cantilever support seat 15 has elasticity, the single-channel steering engine mechanisms are mounted on the cantilever support seat 15, an installation groove is disposed on an end surface of the cantilever support seat 15, a disc spring 13 and a rubber damping sheet 14 are disposed in the installation groove, and the disc spring 13 and the rubber damping sheet 14 are located between the single-channel steering engine mechanisms and the cantilever support seat 15.
In this embodiment, four single-channel steering engine mechanisms are arranged on the cantilever support base 15 of the housing 1, the cantilever support base 15 has elasticity, the elasticity can be realized by adopting an elastic material, so that the cantilever support base 15 can generate elastic deformation, and can also be realized by elastic connection between the cantilever support base 15 and the housing 1, so that one end of the cantilever support base 15, which is far away from the side wall of the housing 1, can generate downward displacement; the cantilever supporting seat 15 can support and fix the single-channel steering engine mechanism, and can buffer axial impact through elastic deformation of the cantilever supporting seat, so that a damping and buffering effect is achieved, and the high overload resistance of the steering engine is improved; and the damping cushioning effect under the high overload operating mode can further be realized to dish spring 13 and rubber shock attenuation piece 14's setting, protection single channel steering wheel mechanism to the deformation of dish spring 13, rubber shock attenuation piece 14 can make single channel steering wheel mechanism take place axial small translation and resume rapidly and do not influence rudder axle position in the operating time.
Preferably, as shown in fig. 3 and 4, the cantilever support seat 15 and the housing 1 are integrally machined, specifically, the cantilever support seat 15 may be designed to be wedge-shaped, or a joint of the cantilever support seat 15 and the housing 1 is designed to be a chamfer, so that the force bearing capacity of the joint of the cantilever support seat 15 and the housing 1 is improved, and further, the requirement of the axial high overload condition can be better met.
Furthermore, a damping piece 31 can be arranged at the installation position of the inner side wall of the shell 1 corresponding to the single-channel steering engine mechanism, the damping piece 31 can be but not limited to rubber and a spring, and the damping piece 31 plays a role in damping and absorbing energy.
The utility model provides a specific implementation mode, as shown in fig. 1 and 2, single channel steering wheel mechanism includes single channel frame 2, brushless motor 3, gear assembly, ball screw subassembly 4, rudder axle subassembly 10 and angle sensor 12, brushless motor 3, gear assembly, ball screw subassembly 4 install on single channel frame 2, the gear assembly is connected with brushless motor 3's axis of rotation, ball screw subassembly 4 is connected with the gear assembly transmission, rudder axle subassembly 10 is connected with ball screw subassembly 4 transmission, the rudder wing 8 department that corresponds rudder axle subassembly 10 on the shell 1 lateral wall is equipped with the recess 7 that supplies rudder wing 8 to expand to stretch out, angle sensor 12 and rudder axle subassembly 10 are through connecting rod 11 linkage. In the working process of the steering engine, four groups of single-channel steering engine mechanisms are mutually independent, the single-channel steering engine mechanisms transmit power through the brushless motor 3, the gear assembly, the ball screw assembly 4 and the steering shaft assembly 10 to adjust the angle of a rudder wing 8 of the steering shaft assembly 10, and meanwhile, the angle sensor 12 measures and feeds back an output angle to realize the closed-loop control of the steering engine. Parts such as a gear assembly, a ball screw assembly 4, a rudder shaft assembly 10 and the like in the high overload resistant telescopic wing electric steering engine provided by the embodiment are in modular design, are easy to process and assemble, and are low in manufacturing cost; the transmission part of the single-channel steering engine is embedded into the single-channel frame 2 through reasonable layout and lightweight design, the structure is compact, the space utilization rate is improved, and the single channels are independent; meanwhile, the axial bearing capacity of the steering engine can be further improved by the connection mode of the connecting rod between the angle sensor 12 and the rudder shaft assembly 10.
Specifically, the gear assembly comprises a motor gear 5 and a screw rod gear 6, the motor gear 5 is connected with a rotating shaft of the brushless motor 3, the motor gear 5 is meshed with the screw rod gear 6, and the screw rod gear 6 is in transmission connection with the ball screw rod assembly 4; the brushless motor 3 drives the motor gear 5 to rotate, so as to drive the screw rod gear 6 to rotate, and power is transmitted to the ball screw assembly 4 through the rotation of the screw rod gear 6.
Specifically, as shown in fig. 5, the ball screw assembly 4 includes a screw 18, a nut 17, a guide rail 16, an angular contact ball bearing 21 and a bearing cover 19, two ends of the screw 18 are mounted on the single-channel frame 2 through the angular contact ball bearing 21, and the selected angular contact ball bearing 21 has better axial and radial bearing capacity than a commonly used deep groove ball bearing, and can better meet the requirement of an axial high-overload condition; one end of the screw rod 18 is in transmission connection with a gear assembly, the nut 17 is connected to the screw rod 18 in a sliding manner, the rudder shaft assembly 10 is connected with the nut 17, the screw rod 18 is driven to rotate through the rotation of a screw rod gear 6 of the gear assembly, so that the nut 17 can move up and down along the axis of the screw rod 18, and the movement of the nut 17 transmits power to the rudder shaft assembly 18; the guide rail 16 is parallel to the screw rod 18, one side of the nut 17 is connected with the guide rail 16 in a sliding mode, the guide rail 16 plays a role in guiding the movement of the nut 17 on one hand, and on the other hand, the axial bearing capacity of the steering engine can be further improved; the bearing cover 19 compresses tightly lead screw 18 and angular contact bearing 21, and is optimized, set up adjusting shim 20 between bearing cover 19 and the single channel frame 2, can realize the regulation to the bearing pretightning force, set up little dish spring 22 between angular contact bearing 21 and the single channel frame 2, can realize the effect of axial buffering. The ball screw subassembly 4 make full use of that this embodiment adopted angular contact ball bearing supports, cantilever structure, dish spring and rubber shock attenuation piece shock attenuation design such as buffering for ball screw drive mechanism still can steadily transmit under the high circumstances of surging, and normal work has greatly improved the steering wheel and has strikeed the survivability under the adverse circumstances at high overload.
Specifically, as shown in fig. 6, the rudder shaft assembly 10 includes a rudder shaft 23, a fork 28, a rudder wing 8, a locking slider 26, an unfolding torsion spring 25 and a locking spring 27, the rudder shaft 23 is installed in a shaft hole of a rudder shaft bracket 9, and can freely rotate, a rudder wing expansion slot 24 is arranged on the rudder shaft 23 along the axis thereof, the root of the rudder wing 8 is hinged in the rudder wing expansion slot 24 through a pin shaft, the two ends of the unfolding torsion spring 25 are respectively connected with the two ends of the pin shaft, the middle part of the unfolding torsion spring 25 is supported at the root part of the rudder wing 8, the locking slide block 26 and the locking spring 27 are positioned at the opposite sides of the unfolding direction of the rudder wing 8 in the rudder wing unfolding groove 24, the locking slide block 26 is pushed to prop against the root of the unfolded rudder wing 8 through the locking spring 27, one end of the shifting fork 28 is connected with the nut 17 of the ball screw assembly 4, the other end of the shifting fork 28 is in transmission connection with the rudder shaft 23, and the movement of the shifting fork 28 drives the rudder shaft 23 to rotate around the axis of the rudder shaft. Under the high overload working condition, the rudder wing 8 is folded and axially placed in the shell 1, so that the resistance to the high overload of the axis is realized; under the normal launching working condition, the rudder wing 8 is pushed to be unfolded through the elasticity provided by the torsional deformation of the unfolding torsion spring 25, no extra energy is needed, the rudder wing 8 can be rapidly stretched after high overload impact is ensured, and after the rudder wing 8 is unfolded, the locking slide block 26 is pushed by the locking spring 27 to prop against the root of the rudder wing 8 to form self-locking, so that the rudder wing 8 is prevented from moving and rebounding; meanwhile, the nut 17 of the ball screw assembly 4 makes a linear motion on the screw 18 to shift the shifting fork 28, so that the shifting fork 28 swings, the rudder shaft assembly 10 is driven to rotate in the shaft hole of the rudder shaft bracket 9, the deflection of the rudder wing 8 is realized, the wing surface angle of the rudder wing 8 is adjusted, the optimum working state is kept, the angle adjustment control is carried out through the measurement feedback of the angle sensor 12, and the closed-loop control is realized.
For a specific embodiment of locking after the rudder wing 8 is unfolded, as shown in fig. 7, the root of the rudder wing 8 has a concave arc surface 29, the locking slider 26 adopts a cam structure and has a convex arc surface 30 matched with the concave arc surface 29, after the rudder wing 8 is unfolded, the concave arc surface 29 at the root is lifted to face the locking slider 26, the locking slider 26 is pushed by a locking spring 27, so that the convex arc surface 30 of the locking slider 26 abuts against the concave arc surface 29 of the rudder wing 8, and the concave arc surface 29 and the convex arc surface 30 are matched to form self-locking, so that the rudder wing 8 has the functions of rebound prevention and positioning locking after being unfolded.
The high overload resistant telescopic wing electric steering engine provided by the embodiment is verified through a high overload test bench test, and the steering engine can effectively bear high overload (greater than or equal to 18000 g) impact and normally work.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (10)
1. The utility model provides an anti high flexible wing electric steering wheel that transships which characterized in that: the cantilever type steering engine comprises a shell and four groups of single-channel steering engine mechanisms arranged in the shell, wherein the four groups of single-channel steering engine mechanisms respectively occupy a quadrant in space, a cantilever supporting seat is arranged on the inner wall of the shell along the radial extension direction and has elasticity, the single-channel steering engine mechanisms are arranged on the cantilever supporting seat, a mounting groove is formed in the end face of the cantilever supporting seat, a disc spring and a rubber damping sheet are arranged in the mounting groove, and the disc spring and the rubber damping sheet are located between the single-channel steering engine mechanisms and the cantilever supporting seat.
2. The high overload resistant telescopic wing electric steering engine according to claim 1, wherein: the cantilever supporting seat and the shell are integrally formed.
3. The high overload resistant telescopic wing electric steering engine according to claim 1, wherein: the cantilever supporting seat is wedge-shaped, or the joint of the cantilever supporting seat and the shell is a chamfer.
4. The high overload resistant telescopic wing electric steering engine according to claim 1, wherein: and a damping piece is arranged at the installation position of the inner side wall of the shell corresponding to the single-channel steering engine mechanism.
5. The high overload resistant telescopic wing electric steering engine according to claim 1, wherein: the single-channel steering engine mechanism comprises a single-channel frame, a brushless motor, a gear assembly, a ball screw assembly, a steering shaft assembly and an angle sensor, wherein the brushless motor, the gear assembly and the ball screw assembly are installed on the single-channel frame, the gear assembly is connected with the rotating shaft of the brushless motor, the ball screw assembly is in transmission connection with the gear assembly, the steering shaft assembly is in transmission connection with the ball screw assembly, a groove for the steering wing to extend out is formed in the position, corresponding to the steering shaft assembly, of the lateral wall of the shell, a connecting rod is arranged between the angle sensor and the steering shaft assembly, feedback is measured on an output angle, and steering engine closed-loop control is achieved.
6. The high overload resistant telescopic wing electric steering engine according to claim 5, wherein: the gear assembly comprises a motor gear and a screw rod gear, the motor gear is connected with a rotating shaft of the brushless motor, the motor gear is meshed with the screw rod gear, and the screw rod gear is in transmission connection with the ball screw rod assembly.
7. The high overload resistant telescopic wing electric steering engine according to claim 5, wherein: the ball screw assembly comprises a screw rod, a nut, a guide rail, an angular contact ball bearing and a bearing cover, wherein two ends of the screw rod are installed on a single-channel frame through the angular contact ball bearing, one end of the screw rod is in transmission connection with the gear assembly, the nut is in sliding connection with the screw rod, the guide rail is arranged in parallel with the screw rod, one side of the nut is in sliding connection with the guide rail, the bearing cover compresses the screw rod and the angular contact bearing, and the steering shaft assembly is connected with the nut.
8. The high overload resistant telescopic wing electric steering engine according to claim 7, wherein: a small disc spring is arranged between the angular contact ball bearing and the single-channel frame, and an adjusting gasket is arranged between the bearing cover and the single-channel frame.
9. The high overload resistant telescopic wing electric steering engine according to claim 5, wherein: the rudder shaft assembly comprises a rudder shaft, a shifting fork, a rudder wing, a locking slider, an expansion torsional spring and a locking spring, wherein a rudder wing expansion groove is formed in the rudder shaft along the axis of the rudder wing, the root of the rudder wing is hinged in the rudder wing expansion groove through a pin shaft, the two ends of the expansion torsional spring are respectively connected to the two ends of the pin shaft, the middle of the expansion torsional spring is supported at the root of the rudder wing, the rudder wing is expanded through elastic force provided by torsional deformation, the locking slider and the locking spring are located on the opposite sides of the unfolding direction of the rudder wing in the rudder wing expansion groove, the locking slider pushes the root of the expansion rudder wing through the locking spring, one end of the shifting fork is connected with a ball screw rod assembly, the other end of the shifting fork is connected with the rudder shaft in a transmission manner, and the shifting fork drives the rudder shaft to rotate around the axis of the shifting fork.
10. The high overload resistant telescopic wing electric steering engine according to claim 9, wherein: the root of the rudder wing is provided with a concave cambered surface, the locking slide block is provided with a convex cambered surface matched with the concave cambered surface, and the concave cambered surface and the convex cambered surface are matched to form self-locking.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210197193.9A CN114812294A (en) | 2022-03-02 | 2022-03-02 | High-overload-resistant electric steering engine with telescopic wings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210197193.9A CN114812294A (en) | 2022-03-02 | 2022-03-02 | High-overload-resistant electric steering engine with telescopic wings |
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| CN114812294A true CN114812294A (en) | 2022-07-29 |
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| CN202210197193.9A Pending CN114812294A (en) | 2022-03-02 | 2022-03-02 | High-overload-resistant electric steering engine with telescopic wings |
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