CN211696096U

CN211696096U - Power tail cabin and rocket

Info

Publication number: CN211696096U
Application number: CN202020051002.4U
Authority: CN
Inventors: 杨瑞康; 宣智超; 韩建业; 刘林峰; 袁宇
Original assignee: Landspace Technology Co Ltd
Current assignee: Landspace Technology Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-10-16
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a power tail cabin, include: the tail wing is connected to the outer side of the tail cabin section through a matching structure; the adjusting device is fixed on the inner side of the tail cabin section and is connected with the matching structure in a sliding manner; and the actuator provides power to control the adjusting device to slide and drive the matching structure to control the deflection of the tail wing. The adjusting device is matched with the actuator to drive the tail wing to deflect a corresponding angle, so that the tail wing can be adjusted under the condition that the original rocket or power tail cabin is not subjected to overlarge system change.

Description

Power tail cabin and rocket

Technical Field

The utility model relates to a rocket flight attitude control technical field, concretely relates to power tail capsule and rocket.

Background

To control the flight of the rocket/missile, the empennage may be provided on the rocket body or the missile body. Taking a rocket as an example, for example, the tail wing can be installed on a power tail cabin of the rocket and separated together with the first-stage rocket body for use during the first-stage separation and the second-stage separation of the rocket. In the process of rocket flight, the two stages can relate to tail wing posture adjustment, wherein firstly, the rocket needs to be adjusted in posture through the tail wing to enter a preset orbit in the ascending section at the beginning of rocket launching, and secondly, the rocket needs to be adjusted in posture through the tail wing to fly back to a preset landing point in the primary recovery of the recoverable rocket. At present, two methods for adjusting the posture are mainly used, one method is realized by swinging of an engine, and the thrust of the engine is not along the axial direction of an arrow body in such a way, so that the thrust loss is caused. The other is to adjust the attitude by an additional small attitude control engine system, so more system structures are needed, and the lifting of the overall transport capacity of the rocket is not facilitated.

At present, the mainstream liquid rockets and solid rockets at home and abroad mostly adopt a mode of increasing empennages to stabilize rocket bodies, namely 4 empennages are symmetrically added on the tail section of the rocket to enhance the stability of the rocket in flight, but the method needs to greatly increase parts.

In view of the above, a power tail capsule and a rocket with high controllability without adding parts are needed.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem among the correlation technique, the utility model provides a power tail cabin and rocket can improve the stability in the rocket flight to improve the controllability and the power of the rocket body.

An aspect of the utility model provides a power tail cabin, include: the tail wing is connected to the outer side of the tail cabin section through a matching structure; the adjusting device is fixed on the inner side of the tail cabin section and is connected with the matching structure in a sliding manner; and the actuator provides power to control the sliding of the adjusting device and drive the matching structure to control the deflection of the tail wing.

In one embodiment, the mating structure comprises: the control shaft and the rotating shaft are positioned on the same side of the tail wing, the control shaft penetrates through the wall surface of the power tail cabin and is movably connected to the adjusting device, and the rotating shaft is rotatably connected to the wall surface of the tail cabin section.

In one embodiment, the adjustment device comprises: and the sliding part comprises a channel arranged on the surface of the sliding part close to the tail wing, and the control shaft penetrates through the wall surface of the tail cabin section and extends to the channel.

In one embodiment, the adjustment device comprises: and the limiting assembly is fixed on the inner wall surface of the tail cabin section, and limits the sliding piece to move up and down between the limiting assemblies and not to fall off.

In one embodiment, the channel of the slider is a straight line or a curved line extending from the center point of the slider to two opposite corners of the slider.

In one embodiment, the channel of the slider is two tangent parabolas, extending from the center point of the slider to two opposite corners thereof, respectively.

In one embodiment, the adjustment device further comprises: a rack segment fixedly attached to the slider; and the gear is electrically connected to the actuator, and the actuator drives the gear to drive the rack section to move up and down.

In one embodiment, the gear is divided into two first gears and two second gears, the first gear is controlled by the actuator and meshed with the first surface of the rack section, and the second gear is fixed on the wall surface of the power tail compartment and meshed with the second surface of the rack section.

In one embodiment, the actuator is a servo motor control module or a hydraulic control module.

In one embodiment, the adjustment device further comprises: and the reinforcing ribs are arranged on two sides of the limiting assembly far away from the sliding piece.

In one embodiment, the adjustment device further comprises: the elastic piece is arranged between the sliding piece and the limiting assembly and used for providing damping when the sliding piece moves towards the limiting assembly.

Yet another aspect of the present invention provides a rocket, including: the power tail cabin is connected with the power tail cabin, and the arrow body is connected with the power tail cabin.

The embodiment of the utility model provides a power tail cabin and rocket drives the fin through adjusting device cooperation actuator and deflects corresponding angle, does not carry out under the condition of too big systematic variation in original rocket or power tail cabin, realizes that the fin is adjustable and then realize controlling the fin and adjust the trajectory in the atmosphere among the launch process, can avoid the thrust direction and the arrow body axis direction inconsistent that the engine swing leads to, can make all thrust of engine all be used for the acceleration of the arrow body, heighten the power of the whole body.

Those skilled in the art will recognize additional features and advantages upon reading the detailed description, and upon viewing the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a rocket according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a power tail compartment according to an embodiment of the present invention

Fig. 3 is a schematic structural diagram of an adjusting device according to an embodiment of the present invention.

Description of reference numerals:

100-tail cabin section, 200-tail wing, 300-matching structure, 400-adjusting device, 500-actuator, 301-control shaft, 302-rotating shaft, 401-sliding part, 402-limiting component, 403-channel, 404-rack section, 405-gear, 406-reinforcing rib.

Detailed Description

The features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, for the purposes of illustrating the principles of the invention. Additionally, the components in the drawings are not necessarily to scale. For example, the dimensions of some of the structures or regions in the figures may be exaggerated relative to other structures or regions to help improve understanding of embodiments of the present invention.

The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise stated, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or component comprising a list of elements does not include only those elements but may include other mechanical components not expressly listed or inherent to such structure or component. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.

Spatially relative terms such as "below," "… below," "lower," "above," "… above," "upper," and the like are used for convenience in describing the positioning of one element relative to a second element and are intended to encompass different orientations of the device in addition to different orientations than those illustrated in the figures. Further, for example, the phrase "one element is over/under another element" may mean that the two elements are in direct contact, or that there is another element between the two elements. Furthermore, terms such as "first", "second", and the like, are also used to describe various elements, regions, sections, etc. and should not be taken as limiting. Like terms refer to like elements throughout the description.

It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

Fig. 1 shows a schematic structural diagram of a rocket according to an embodiment of the present invention, fig. 2 shows a schematic structural diagram of a power tail compartment according to an embodiment of the present invention, and fig. 3 shows a schematic structural diagram of an adjusting device according to an embodiment of the present invention.

As shown in fig. 2, the power tail cabin of the embodiment of the present invention includes: the tail cabin section 100 and the tail wing 200 are connected to the outer side of the tail cabin section 100 through a matching structure 300; the adjusting device 400 is fixed on the inner side of the tail cabin section 100 and is connected with the matching structure 300 in a sliding manner; and an actuator 500 for providing power to control the sliding of the adjusting device 400 and the driving of the fitting structure 300 to control the deflection of the rear wing 200.

The actuator 500 is configured to receive the command from the upper stage to provide power to control the adjustment device 400 to slide, so as to drive the matching structure 300 to deflect the tail wing 200 at a certain angle, and the stability of the whole power device can be improved without increasing the number of system components through the control of the tail wing 200 of the power tail cabin. The embodiment of the present invention employs the cooperation of the actuator 500 and the adjusting device 400, so as to realize the large tail 200 controlled by the small circuit system.

As shown in fig. 1, the power tail cabin of the embodiment of the present invention can be combined with other components to form a power device with a controllable tail wing. A power tail capsule is connected with a rocket body to form a tail controllable rocket, or the power tail capsule is connected with a missile body to form a tail controllable missile, and the like. The adjusting device 400 is matched with the actuator 500 to drive the tail wing 200 to deflect a corresponding angle, so that the tail wing 200 can be adjusted under the condition that the original rocket or power tail cabin is not subjected to overlarge system change, the tail wing is controlled to adjust the trajectory in the atmosphere in the launching process, the situation that the thrust direction caused by the swing of the engine is inconsistent with the axis direction of the rocket body can be avoided, all thrust of the engine can be used for accelerating the rocket body, and the transport capacity of the whole rocket body can be improved. In the process of recovering the rocket, the falling point of the rocket body can be controlled by controlling the direction of the tail wing 200, the acting time of the engine is reduced, and therefore more propellants can be remained to realize the recovery of the first-stage rocket body.

As shown in fig. 2, the fitting structure 300 includes: the control shaft 301 and the rotation shaft 302 are located on the same side of the empennage 200, the control shaft 301 is movably connected to the adjusting device 400 through the wall surface of the power tail compartment, and the rotation shaft 302 is rotatably connected to the wall surface of the power tail compartment. Note that, in order to connect the control shaft 301 and the rotary shaft 302 to the tail wing 200 tightly, the two are welded. In the practical application process, in order to make the connection between the control shaft 301, the rotating shaft 302 and the tail wing 200 more compact and firm, the two may be designed to be integrally formed, and the process will not be described herein.

In the present embodiment, the control shaft 301 needs to penetrate the wall surface of the power tail compartment and extend into the adjustment device 400, and the rotating shaft 302 may penetrate the wall surface of the power tail compartment or may not penetrate the wall surface of the power tail compartment, and it is sufficient that the rotating shaft 302 is fixed and can rotate about its own axis. If disposed through the wall of the power pod, a mating ring may be mounted on the end of the rotating shaft 302 extending out of the wall to secure the rotating shaft 302. Specifically, the rotating shaft 302 may be provided in two or more, each being provided above or below the control shaft 301, and the stability of the connection of the rear wing 200 can be increased by the two or more rotating shafts 302.

In one embodiment, the adjustment device 400 includes: the sliding member 401, which comprises a channel provided in the surface of the sliding member 401 adjacent to the tail fin 200, may be of rectangular configuration, comprising a channel 403 diagonally provided through the rectangular configuration, the control shaft 301 extending through the wall of the power pod to the channel 403. The sliding member 401 moves up and down along a predetermined track, and the diagonally disposed slot 403 drives the control shaft 301 to deflect in the left-right direction, thereby converting the vertical force of the adjusting device 400 into the left-right deflection of the tail wing 200.

Specifically, the channel 403 of the sliding member 401 is a straight line or a curved line, and extends from the center point of the sliding member 401 to two opposite corners thereof, respectively. For example, the straight line equation may be x ay, and the parameter a may be adjusted through experiments and calculations, thereby achieving control of the steering sensitivity of the rear wing 200. The curve equation may be any one of curve equations, and the curve can extend through the center point of the sliding member 401 to any two opposite corners. As shown in fig. 3, in the present embodiment, the channel 403 of the sliding member 401 is two tangent parabolas, and extends from the center point of the sliding member 401 to two opposite corners thereof. The curve equation is x ay²(y＞0),x＝ay²(y is less than 0), the parameter a can be adjusted through experiments and calculation, and the sensitivity of controlling the steering of the tail wing 200 can be realized. The central point of the sliding part 401 starts to move, the small stroke is low sensitivity, and the large stroke is high sensitivity, so that the effect of taking both the small stroke and the large stroke into consideration is realized.

In one embodiment, the adjustment device 400 further comprises: and the limiting assemblies 402 are fixed on the inner wall surface of the tail cabin section, and limit the sliding piece 401 to move up and down between the limiting assemblies 402 without falling off. The two limiting assemblies 402 are generally arranged, the sliding part 401 is limited and clamped at the left and right, vibration feedback and lateral force which are applied to the tail wing 200 by high-speed airflow and transmitted to the sliding part 401 can be borne, the problem of stability of a movement mechanism is solved, and meanwhile the stability of the tail wing 200 is effectively guaranteed by the matching of the control shaft 301 and the sliding part 401.

In one embodiment, the adjustment device 400 further comprises: a rack segment 404 fixedly attached to the slider 401; and the gear 405 is electrically connected to the actuator 500, and the actuator 500 drives the gear 405 to drive the rack section 404 to move up and down. The gear 405 and the rack segment 404 are engaged with each other, and the actuator 500 provides a rotational force to the gear 405, thereby moving the engaged rack segment 404 up and down, and the slider 401 connected to the rack segment 404 also up and down.

In one embodiment, there are two gears 405, a first gear controlled by the actuator 500 and engaged with the first face of the rack section 404, and a second gear fixed to the wall of the power pod and engaged with the second face of the rack section 404. The first gear and the second gear are meshed with each other through the rack sections 404 which are meshed with each other front and back, so that meshing is more stable, and the rack sections 404 are driven by the gear 405 to slide more smoothly.

In one embodiment, the actuator 500 is a servo motor control module, a hydraulic control module, or the like, and may be a device module capable of providing power to the adjustment device 400. The servo motor control module or the hydraulic control module receives a superior control command and can provide a force for forward rotation or reverse rotation of the gear 405 and a time length and a speed for rotation of the gear 405, so that the toothed rack segments 404 are driven to accurately control the position of the sliding part 401, and the rotation angle of the tail wing 200 is accurately controlled through the slots 403 in the sliding part 401.

In one embodiment, the adjustment device further comprises: and the reinforcing ribs 406 are arranged on two sides of the limiting assembly 402 away from the sliding piece 401. To avoid excessive force exerted by the slider 401 on the stop assembly 402, resulting in damage to the stop assembly 402. The ribs 406 may be triangular blocks, with one or more ribs 406 disposed on one side of each stop assembly 402.

In one embodiment, the adjustment device 400 further comprises: and the elastic piece is arranged between the sliding piece 401 and the limiting assembly 402 and is used for providing damping when the sliding piece 401 moves towards the limiting assembly 402. The elastic member may be a spring or rubber, which can provide a buffering effect, and the elastic member may be fixed on both sides of the sliding member 401 or on the inner side of the position limiting assembly 402. Therefore, the vibration feedback and the lateral force which are applied to the tail wing 200 by the high-speed airflow and transmitted to the sliding part 401 can be better borne, and the problems of stability and safety of a movement mechanism are solved.

The above embodiments of the present invention can be combined with each other, and have corresponding technical effects.

Another aspect of the present invention provides a rocket, which includes at least one of the above power tail compartments, and a rocket body connected to the power tail compartment. The adjusting device 400 is matched with the actuator 500 to drive the tail wing 200 to deflect a corresponding angle, so that the tail wing 200 can be adjusted under the condition that the original rocket does not undergo overlarge system change, the rocket can control the tail wing to adjust the trajectory in the atmosphere in the launching process, the situation that the thrust direction caused by the swing of the engine is inconsistent with the axis direction of the rocket body can be avoided, all thrust of the engine can be used for accelerating the rocket body, and the carrying capacity of the whole rocket body can be improved. When the first-stage rocket body of the rocket is recovered, the falling point of the first-stage rocket body can be controlled by controlling the direction of the tail wing 200, the acting time of the engine is reduced, and therefore more propellants can be remained to realize the recovery of the first-stage rocket body.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A power pod, comprising:

the tail wing is connected to the outer side of the tail cabin section through a matching structure;

the adjusting device is fixed on the inner side of the tail cabin section and is connected with the matching structure in a sliding manner;

and the actuator provides power to control the adjusting device to slide and drive the matching structure to control the deflection of the tail wing.

2. The power pod of claim 1 wherein the mating structure comprises:

a control shaft and a rotation shaft located on the same side of the tail fin, the control shaft being movably connected to the adjustment device through a wall surface of the tail tank section, the rotation shaft being rotatably connected to the wall surface of the tail tank section.

3. The power pod of claim 2 wherein the adjustment device comprises:

and the sliding part comprises a channel arranged on the surface of the sliding part close to the tail wing, and the control shaft penetrates through the wall surface of the power tail cabin and extends to the channel.

4. The power pod of claim 3 wherein the adjustment device comprises:

and the limiting assembly is fixed on the inner wall surface of the tail cabin section and limits the sliding piece to move up and down between the limiting assemblies without falling off.

5. The power tail compartment of claim 3 wherein the channel of the sliding member is a straight line or a curved line extending from a center point of the sliding member to two opposite corners of the sliding member.

6. The power pod of claim 3 wherein the channel of the slider is two tangent parabolas extending from a center point of the slider to two opposite corners thereof.

7. The power pod of any of claims 3-6, wherein the adjustment device further comprises:

a rack segment fixedly attached to the slider;

the gear, the electricity connect in the actuator, the actuator drive the gear drives the rack section and reciprocates.

8. The power tail capsule of claim 7, wherein the gear is divided into a first gear and a second gear, the first gear is controlled by the actuator and is engaged with the first face of the rack section, and the second gear is fixed to a wall of the power tail capsule and is engaged with the second face of the rack section.

9. The power pod of claim 1 wherein the actuator is a servo motor control module or a hydraulic control module.

10. The power pod of claim 4 wherein the adjustment device further comprises:

and the reinforcing ribs are arranged on two sides of the limiting assembly, which are far away from the sliding piece.

11. The power pod of claim 4 wherein the adjustment device further comprises: the elastic piece is arranged between the sliding piece and the limiting assembly and used for providing damping when the sliding piece moves towards the limiting assembly.

12. A rocket, comprising:

the power pod of any of claims 1-11, and

an arrow body connected to the power tail compartment.