Auxiliary device for folding and unfolding rudder and folding and unfolding method of carrier rocket rudder

Abstract

The invention relates to the technical field of carrier rockets, and discloses an auxiliary device for folding and unfolding a rudder and a folding and unfolding method of a carrier rocket rudder, the auxiliary device comprises a binding belt and a blocking and buffering piece, the two ends of the binding belt are detachably connected, and the binding belt with the two ends connected can be arranged outside the rudder and a rocket body in a sleeving mode so that the rudder can be located at the folding position; the two ends of the buffering piece can be rotationally connected with the launching pad and the rudder respectively, and when the two ends of the binding belt are not connected, the rudder can compress the buffering piece under the action of gravity and unfold from the folding position to the unfolding position. The folding and unfolding method comprises the following steps that the rudder is rotated to be attached to a rocket body; the binding belt is wound around the rudder and the rocket body, and then the two ends of the binding belt are connected, so that the rudder is fixed to the folding position; the stopping and buffering piece is connected between the launching pad and the rudder, the binding belt is detached, and the rudder rotates to the unfolding position from the folding position under the action of gravity; and removing the blocking and buffering piece. The folding and unfolding speed is high, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of launch vehicles, and in particular to an auxiliary device for folding and unfolding a rudder and a method for folding and unfolding a launch vehicle rudder. Background Art

[0002] The rudder plays an important role in the attitude control of the launch vehicle during the ascent and return phases of the flight. When the launch vehicle is in the technical area, due to its large size and weight, the rudder is usually stored separately or folded to save space between the rocket body and the launch vehicle; when in the launch area, the rudder is unfolded and installed in place to ensure attitude control during flight. At present, the folding and unfolding of the rudder usually adopts manual direct dismantling and installation, ratchet mechanism or automatic unlocking mechanism to realize the rudder unfolding function. Manual dismantling and installation are dangerous and require the cooperation of multiple people, which takes a lot of time and manpower costs; the ratchet mechanism is relatively complex and requires human power transmission, which takes a long time; although the automatic unlocking mechanism has a short unfolding time, its structure is complex and the cost is high.

[0003] Therefore, there is an urgent need for an auxiliary device for folding and unfolding a rudder and a method for folding and unfolding a launch vehicle rudder to solve the above problems. Summary of the invention

[0004] Based on the above, the purpose of the present invention is to provide an auxiliary device for folding and unfolding a rudder and a method for folding and unfolding a launch vehicle rudder, which has the effects of fast folding and unfolding speed, repeated use, and low cost.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An auxiliary device for folding and unfolding a rudder, wherein the rudder is rotatably connected to a rocket body and has an unfolded position and a folded position relative to the rocket body, the auxiliary device comprises a restraining belt and a buffer member, the two ends of the restraining belt are detachably connected, the restraining belt with connected ends can be sleeved over the rudder and the rocket body to place the rudder in the folded position; the two ends of the buffer member can be rotatably connected to a launch platform and the rudder respectively, and when the two ends of the restraining belt are not connected, the rudder can compress the buffer member under the action of gravity and unfold from the folded position to the unfolded position.

[0007] As a preferred solution of an auxiliary device for folding and unfolding a rudder, the auxiliary device further comprises:

[0008] A fixing member, a first fixing hole is opened on the rudder root of the rudder, a second fixing hole is opened on the rocket body, when the rudder is located in the deployed position, the first fixing hole and the second fixing hole are arranged opposite to each other, and the fixing member can be connected to the first fixing hole and the second fixing hole.

[0009] As a preferred solution of an auxiliary device for folding and unfolding a rudder, the auxiliary device further comprises:

[0010] A first pad is provided between the restraining belt and the rudder to isolate the rudder from the restraining belt.

[0011] As a preferred solution of an auxiliary device for folding and unfolding a rudder, the auxiliary device further comprises:

[0012] A second pad is arranged between the rudder and the rocket body to isolate the rudder and the rocket body.

[0013] As a preferred solution of the auxiliary device for folding and unfolding the rudder, the auxiliary device further comprises:

[0014] A connecting piece, a first connecting hole is provided on the rudder, a second connecting hole is provided on the rocket body, the connecting piece is detachably connected to the first connecting hole and the second connecting hole, and when the rudder is in the folded position, the connecting piece can be connected to the first connecting hole and the second connection to fix the rudder on the rocket body.

[0015] As a preferred solution of an auxiliary device for folding and unfolding a rudder, the auxiliary device further comprises:

[0016] A fixing block having a third connecting hole thereon, the fixing block can be attached to a side of the rudder away from the rocket body, and the connecting piece can sequentially connect the third connecting hole, the first connecting hole and the second connecting hole.

[0017] As a preferred solution for the auxiliary device for folding and unfolding the rudder, a first support is provided on the launching platform, a second support is provided on the rudder, and both ends of the damping member are detachably and rotatably connected to the first support and the second support respectively.

[0018] As a preferred solution for the auxiliary device for folding and unfolding the rudder, the damping member comprises a hydraulic damper.

[0019] As a preferred solution for the auxiliary device for folding and unfolding the rudder, the restraining belt comprises an elastic belt.

[0020] A method for folding and unfolding a launch vehicle rudder, based on the auxiliary device for folding and unfolding a rudder described in any of the above technical solutions, comprises the following steps:

[0021] When the carrier rocket is in the technical area, the rudder is rotated to fit the rocket body so that the rudder is in a folded position;

[0022] Passing the tie strap around the rudder and the rocket body, and then connecting the two ends of the tie strap so that the rudder is fixed in the folded position;

[0023] The blocking member is connected between the launch platform and the rudder, and when the carrier rocket is in the launch area, the restraining belt is removed, and the rudder is rotated from the folded position to the unfolded position under the action of gravity;

[0024] Remove the blocking member.

[0025] The beneficial effects of the present invention are:

[0026] The present invention provides an auxiliary device for folding and unfolding a rudder. When a carrier rocket is in a technical area, the rudder is folded outside the rocket body by a restraining belt, which can save space for the rocket body and the launch vehicle. The restraining belt is easy to operate, does not require complex mechanical devices, saves power and device installation space, and has low cost. When the carrier rocket is in a launch area, the restraining belt is removed, and the rudder rotates to the unfolded position under its own gravity, does not require other driving mechanisms, saves unfolding time, and at the same time, the rudder is subjected to resistance from a slowing member during the unfolding process, so that the rudder can be unfolded smoothly, avoiding vibration and damage caused by sudden and rapid rotation of the rudder, and improving the reliability and safety of use. Compared with the ratchet mechanism or self-unlocking mechanism used in the prior art, the auxiliary device for folding and unfolding a rudder has a simple structure, is easy to operate, has a low probability of mechanical failure, can effectively improve the folding and unfolding efficiency of the rudder, saves folding and unfolding time, occupies space and costs, and at the same time, the auxiliary device for folding and unfolding a rudder can be reused, is convenient for test training, and has good practicality.

[0027] The present invention also provides a method for folding and unfolding a launch vehicle rudder. When in the technical area, the rudder is folded by a restraining belt. Then, when in the launch area, the restraining belt is untied, and the rudder is naturally unfolded under the damping effect of the damping component. After it is fully unfolded, the damping component can be removed. The operation is convenient, the folding and unfolding efficiency is high, and the folding and unfolding time is short; and when the rudder is unfolded, no human lifting and slowing is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0029] Figure 1 is a structural schematic diagram of an auxiliary device for folding and unfolding a rudder provided in an embodiment of the present invention (the rudder is in a folded position);

[0030] Figure 2is a structural schematic diagram of an auxiliary device for folding and unfolding a rudder provided in an embodiment of the present invention (the rudder is in an unfolded position);

[0031] Figure 3 The process of the method for folding and unfolding the launch vehicle rudder provided by the embodiment of the present invention is Figure 1 ;

[0032] Figure 4 The process of the method for folding and unfolding the launch vehicle rudder provided by the embodiment of the present invention is Figure 2 .

[0033] In the figure:

[0034] 1. Rocket body; 2. Rudder; 3. Restraint belt; 4. Stopper; 5. U-shaped pad; 6. Connector; 7. Fixing block; 8. Mounting seat; 9. Launch platform; 10. First fixing hole; 20. Third fixing hole. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] like Figure 1 and Figure 2 As shown, this embodiment provides an auxiliary device for folding and unfolding the rudder, the rudder 2 is rotatably connected to the rocket body 1, and has an unfolded position and a folded position relative to the rocket body 1. For example, a mounting seat 8 is mounted on the rocket body 1, and the rudder 2 is rotatably connected to the mounting seat 8 via a rotating shaft. Specifically, the auxiliary device includes a restraining belt 3 and a buffering member 4, the two ends of the restraining belt 3 are detachably connected, the restraining belt 3 with connected ends can be sleeved on the outside of the rudder 2 and the rocket body 1, so that the rudder 2 is in the folded position, the two ends of the buffering member 4 can be rotatably connected to the launch platform 9 and the rudder 2 respectively, when the two ends of the restraining belt 3 are not connected, the rudder 2 can compress the buffering member 4 under the action of gravity, and unfold from the folded position to the unfolded position. The rudder 2 is bound and folded outside the rocket body 1 by the binding belt 3, which can save space for the rocket body and the launch vehicle, and the binding belt 3 is easy to operate, does not require complex mechanical devices, saves power and device installation space, and has low cost; when the carrier rocket is in the launch area, the binding belt 3 is removed, and the rudder 2 rotates to the unfolded position under its own gravity, and no other driving mechanism is required, which saves the unfolding time. At the same time, the rudder 2 is resisted by the buffer 4 during the unfolding process, so that the rudder 2 can be unfolded smoothly, avoiding vibration and damage caused by sudden and rapid rotation of the rudder 2, improving the reliability and safety of use, and no manual lifting is required, saving manpower and labor. Compared with the ratchet mechanism or self-unlocking mechanism used in the prior art, the auxiliary device for folding and unfolding the rudder is simple in structure and easy to operate, which can effectively improve the folding and unfolding efficiency of the rudder 2, save folding and unfolding time, occupy space and cost, and at the same time, the auxiliary device for folding and unfolding the rudder can be reused, which is convenient for test training and has better practicality.

[0040] Preferably, the restraining belt 3 comprises an elastic belt, that is, the restraining belt 3 is elastic, so as to facilitate tightening the rudder 2 and has a wide range of applications, thereby preventing the restraining belt 3 from being insufficient or too loose when fixing the rudder 2 .

[0041] Specifically, the two ends of the restraint belt 3 are respectively provided with a first connecting piece 6 and a second connecting piece 6, and the first connecting piece 6 and the second connecting piece 6 are detachably connected. When the carrier rocket is located in the technical area, the rudder 2 is folded, and then the restraint belt 3 is passed around the rudder 2 and the rocket body 1, and the first connecting piece 6 and the second connecting piece 6 are connected to fix the rudder 2 in the folded position; when the carrier rocket is located in the launch area, the first connecting piece 6 and the second connecting piece 6 are loosened, and the restraint belt 3 loses the restriction on the rudder 2, and the rudder 2 can be automatically unfolded.

[0042] For example, one of the first connecting member 6 and the second connecting member 6 is an elastic buckle, and the other is a locking ring. The elastic buckle is hooked on the locking ring to achieve connection, which is simple to operate and saves time. Of course, in other embodiments, the first connecting member 6 and the second connecting member 6 can also be other structures, for example, one of the first connecting member 6 and the second connecting member 6 is a bolt, and the other is a nut, or the two ends of the restraint belt 3 can be directly fastened.

[0043] In this embodiment, the auxiliary device further includes a first pad, which is arranged between the restraining belt 3 and the rudder 2 to isolate the rudder 2 from the restraining belt 3. The arrangement of the first pad can effectively prevent the restraining belt 3 from causing wear or marks on the surface of the rudder 2, and plays a good protective role on the surface of the rudder 2, wherein the first pad can be selected but not limited to an elastic pad, such as a sponge pad or a rubber pad. Exemplarily, two first pads are arranged, and the two first pads are arranged on opposite sides of the rudder 2, respectively. When the restraining belt 3 passes around the rudder 2, the first pad is arranged at the contact point with the rudder 2.

[0044] The auxiliary device also includes a second pad, which is arranged between the rudder 2 and the rocket body 1 to isolate the rudder 2 and the rocket body 1. The arrangement of the second pad can effectively prevent the rudder 2 from causing wear or indentation to the rocket body 1, and plays a good protective role for the rocket body 1, wherein the second pad can be optionally but not limited to an elastic pad, such as a sponge pad or a rubber pad. Exemplarily, two second pads are provided, and the two second pads are respectively arranged on opposite sides of the rudder 2, and are arranged corresponding to the two first pads. Optionally, the first pad and the second pad on the same side are integrally formed, that is, the first pad and the second pad on the same side form a U-shaped pad 5, and the U-shaped pad 5 is clamped on one side of the rudder 2 to cope with the higher pressure brought by the restraining belt 3 to the corner of the rudder 2.

[0045] In order to save manpower and facilitate operation, the auxiliary device also includes a connecting member 6, a first connecting hole is provided on the rudder 2, a second connecting hole is provided on the rocket body 1, and the connecting member 6 is detachably connected to the first connecting hole and the second connecting hole. When the rudder 2 is in the folded position, the connecting member 6 can be connected to the first connecting hole and the second connecting hole to fix the rudder 2 on the rocket body 1. When the carrier rocket is located in the technical area, the rudder 2 is manually folded to the folded position, and then the first connecting hole and the second connecting hole are connected through the connecting member 6, so that the rudder 2 is fixedly connected to the rocket body 1, and the operator can loosen the rudder 2, which is convenient for the subsequent installation of the restraining belt 3, and no other operator is required to help fix the rudder 2. After the restraining belt 3 is used to restrain the rudder 2, the connecting member 6 is removed, so that the rudder 2 can be automatically unfolded by loosening the restraining belt 3 when the carrier rocket is located in the launch area. Exemplarily, the second connecting hole is a threaded hole, the first connecting hole can be optionally a threaded hole or a through hole, and the connecting member 6 is a bolt, and the bolt passes through the first connecting hole and is threadedly connected to the threaded hole, so that the connection is stable and better, the cost is low, and it is easy to disassemble and assemble. Of course, in other embodiments, the connecting member 6 may also be a plug, and the first connecting hole and the second connecting hole may be selected as plug holes, and the plug can be inserted into the plug holes with interference fit.

[0046] Preferably, the auxiliary device further comprises a fixing block 7, a third connection hole is formed on the fixing block 7, the fixing block 7 can be attached to a side of the rudder 2 away from the rocket body 1, and the connecting member 6 can sequentially connect the third connection hole, the first connection hole and the second connection hole. The setting of the fixing block 7 can prevent the connecting member 6 from damaging the rudder 2 surface of the rudder 2, and play an isolation role.

[0047] Furthermore, the damping component 4 includes a hydraulic damper, which includes a cylinder, a cylinder rod, a piston and a shaft seal. Ball hinge joints are arranged at both ends of the cylinder, and the two ball hinge joints can be detachably connected to the launching platform 9 and the rudder 2 respectively. There is hydraulic oil in the cylinder. When the rudder 2 is unfolded, the cylinder rod is pushed to move along the lever barrel, driving the piston to move. The hydraulic oil passes through the damping hole on the piston. Due to the throttling effect of the damping hole, the moving speed of the piston can be effectively reduced, thereby reducing the moving speed of the lever, which slows down the rotation of the rudder 2 and allows the rudder 2 to smoothly rotate from the folded position to the unfolded position.

[0048] Specifically, a first support is provided on the launch platform 9, a second support is provided on the rudder 2, and the two ends of the damper 4 are detachably connected to the first support and the second support respectively. When the carrier rocket is located in the technical area, the rudder 2 is fixed with a restraining belt 3 to save space, and the damper 4 is installed at the same time. When the carrier rocket is located in the launch area, the restraining belt 3 is loosened, and the rudder 2 is smoothly unfolded under the resistance of the damper 4. After the rudder 2 is fully unfolded, the rudder 2 can be removed. The damper 4 can be reused, which is convenient for multiple training tests.

[0049] After the rudder 2 is fully deployed, in order to fix the rudder 2 in the deployed position, the auxiliary device also includes a fixing part. The rudder 2 root of the rudder 2 is provided with a first fixing hole 10, and the rocket body 1 is provided with a second fixing hole. When the rudder 2 is in the deployed position, the first fixing hole 10 and the second fixing hole are arranged opposite each other, and the fixing part can be connected to the first fixing hole 10 and the second fixing hole. The rudder 2 is fixedly connected to the rocket body 1 by the fixing part, so that the rudder 2 is fixed in the deployed position. In this embodiment, a third fixing hole 20 is provided on the mounting seat 8, and the fixing part can connect the first fixing hole 10 and the third fixing hole 20, and can also connect the first fixing hole 10, the second fixing hole and the third fixing hole 20.

[0050] Exemplarily, the fixing member is a bolt, the second fixing hole and / or the third fixing hole 20 is a threaded hole, the first fixing hole 10 can be a through hole or a threaded hole, and when the rudder 2 is deployed in the deployed position, the rudder 2 is fixed by threading the bolt to the threaded hole, which has a simple structure, convenient operation, and low cost. Preferably, the fixing member, the first fixing hole 10, the second fixing hole, and the third fixing hole 20 can be selected but not limited to one, and can also be two, three or four, etc., which are specifically set according to actual needs.

[0051] like Figures 1 to 4 As shown, this embodiment also provides a method for folding and unfolding a launch vehicle rudder, based on the above-mentioned auxiliary device for folding and unfolding a rudder, comprising the following steps:

[0052] S1: When the launch vehicle is in the technical area, the rudder 2 is rotated to fit the rocket body 1 so that the rudder 2 is in a folded position; preferably, the rudder 2 is fixed to the rocket body 1 by a connecting piece 6.

[0053] S2: Wrap the restraint belt 3 around the rudder 2 and the rocket body 1, and then connect the two ends of the restraint belt 3 to fix the rudder 2 in the folded position; after the restraint belt 3 restrains the rudder 2, remove the connecting piece 6 to facilitate the subsequent automatic deployment of the rudder 2.

[0054] S3: Connect the damping member 4 between the launch platform 9 and the rudder 2. When the carrier rocket is in the launch area, remove the restraining belt 3. The rudder 2 rotates from the folded position to the unfolded position under the action of gravity.

[0055] S4: Remove the buffer component 4.

[0056] Specifically, after S4, it also includes:

[0057] S5: The rudder 2 is fixedly connected to the rocket body 1 through a fixing member so that the rudder 2 is fixed in the deployed position.

[0058] It is easy to operate, has high efficiency and takes less time.

[0059] The above steps are easy to operate, have high folding and unfolding efficiency, and take less time; and no human lifting and slowing is required when the rudder 2 is unfolded.

[0060] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An auxiliary device for folding and unfolding a rudder, wherein the rudder is rotatably connected to a rocket body and has an unfolded position and a folded position relative to the rocket body, characterized in that: The auxiliary device comprises: A restraining belt, wherein both ends of the restraining belt are detachably connected, and the restraining belt with both ends connected can be sleeved on the rudder and the rocket body to place the rudder in the folded position; The two ends of the buffer member can be rotatably connected to the launch platform and the rudder respectively. When the two ends of the restraining belt are not connected, the rudder can compress the buffer member under the action of gravity and unfold it from the folded position to the unfolded position.

2. The auxiliary device for folding and unfolding a rudder according to claim 1, characterized in that: The auxiliary device also includes: A fixing member, a first fixing hole is opened on the rudder root of the rudder, and a second fixing hole is opened on the rocket body. When the rudder is located in the deployed position, the first fixing hole and the second fixing hole are arranged opposite to each other, and the fixing member can be connected to the first fixing hole and the second fixing hole.

3. The auxiliary device for folding and unfolding a rudder according to claim 1, characterized in that: The auxiliary device also includes: A first pad is provided between the restraining belt and the rudder to isolate the rudder from the restraining belt.

4. The auxiliary device for folding and unfolding a rudder according to claim 1, characterized in that: The auxiliary device also includes: A second pad is arranged between the rudder and the rocket body to isolate the rudder and the rocket body.

5. The auxiliary device for folding and unfolding a rudder according to claim 1, characterized in that: The auxiliary device also includes: A connecting piece, a first connecting hole is provided on the rudder, a second connecting hole is provided on the rocket body, the connecting piece is detachably connected to the first connecting hole and the second connecting hole, and when the rudder is in the folded position, the connecting piece can be connected to the first connecting hole and the second connection to fix the rudder on the rocket body.

6. The auxiliary device for folding and unfolding the rudder according to claim 5, characterized in that: The auxiliary device also includes: A fixing block having a third connecting hole thereon, the fixing block can be attached to a side of the rudder away from the rocket body, and the connecting piece can sequentially connect the third connecting hole, the first connecting hole and the second connecting hole.

7. The auxiliary device for folding and unfolding a rudder according to any one of claims 1 to 6, characterized in that: The launching platform is provided with a first support, the rudder is provided with a second support, and both ends of the damping member are detachably connected to the first support and the second support respectively.

8. The auxiliary device for folding and unfolding a rudder according to any one of claims 1 to 6, characterized in that: The damping element includes a hydraulic damper.

9. The auxiliary device for folding and unfolding a rudder according to any one of claims 1 to 6, characterized in that: The restraint belt includes an elastic belt.

10. A method for folding and unfolding a launch vehicle rudder, based on the auxiliary device for folding and unfolding a rudder according to any one of claims 1 to 9, characterized in that: The following steps are involved: When the carrier rocket is in the technical area, the rudder is rotated to fit the rocket body so that the rudder is in a folded position; Passing the tie strap around the rudder and the rocket body, and then connecting the two ends of the tie strap so that the rudder is fixed in the folded position; The blocking member is connected between the launch platform and the rudder, and when the carrier rocket is in the launch area, the restraining belt is removed, and the rudder is rotated from the folded position to the unfolded position under the action of gravity; Remove the blocking member.

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