A frame-type erection arm for sea-state hot launch of rockets

Abstract

The present invention relates to a frame type erection arm for sea state hot launch of a rocket, which includes an erection frame. In the erection frame, there are a first upper support seat, a second upper support seat, a first lower support seat and a second lower support seat distributed circumferentially. The first upper support seat, the second upper support seat, the first lower support seat and the second lower support seat are arc-shaped and arranged along the length direction of the erection frame. Between the first lower support seat and the second lower support seat, there are a plurality of support and locking assemblies distributed at intervals along the length direction of the erection frame. The support and locking assembly includes an arc-shaped support seat, and there are symmetrically distributed hydraulic cylinders between the arc-shaped support seat and the erection frame. It has the advantages of simple structure, convenient operation, stable support, safety and reliability.

Description

Technical Field

[0001] The present invention relates to the technology of thermal sea launch of rockets, and particularly to a frame-type erection arm for the thermal sea launch of rockets. Background Art

[0002] In the field of aerospace, the thermal sea launch of rockets usually adopts a frame-type erection arm for erection and a method of not returning the erection arm to the horizontal position. The existing frame-type erection arms generally support and limit the rocket body through a plurality of arc-shaped support seats arranged at intervals in the circumferential direction. Due to the structural characteristics of the arc-shaped support seats themselves and the requirement of not returning the erection arm to the horizontal position, their strength is insufficient to support the rocket body to maintain a stable state during the erection process, affecting safety and reliability. Summary of the Invention

[0003] The purpose of the present invention is to provide a frame-type erection arm for the thermal sea launch of rockets, which has the advantages of simple structure, convenient operation, stable support, safety and reliability.

[0004] To solve the above problems existing in the prior art, a frame-type erection arm for the thermal sea launch of rockets provided by the present invention includes an erection frame. In the erection frame, a first upper support seat, a second upper support seat, a first lower support seat and a second lower support seat are arranged in a circumferential distribution. The first upper support seat, the second upper support seat, the first lower support seat and the second lower support seat are arc-shaped and arranged along the length direction of the erection frame. A plurality of support locking components are arranged at intervals along the length direction of the erection frame between the first lower support seat and the second lower support seat. The support locking component includes an arc-shaped support seat, and symmetrically distributed hydraulic cylinders are arranged between the arc-shaped support seat and the erection frame.

[0005] Further, in a frame-type erection arm for the thermal sea launch of rockets according to the present invention, a support beam corresponding to the support locking component is arranged on the erection frame. The hydraulic cylinders are fixed in the holes on the support beam, and the piston rods of the hydraulic cylinders are connected to the hinge seats on the arc-shaped support seat through pin shafts.

[0006] Further, in a frame-type erection arm for the thermal sea launch of rockets according to the present invention, mechanical locks are also symmetrically arranged between the arc-shaped support seat and the support beam. The mechanical lock includes upper and lower lugs respectively fixed on the arc-shaped support seat and the support beam. The upper and lower lugs are respectively hinged with an upper nut and a lower nut through pin shafts. The upper nut and the lower nut are connected by a double-headed bolt, and the thread directions at both ends of the double-headed bolt are opposite.

[0007] Further, for a frame-type erection arm for sea-state hot launch of a rocket according to the present invention, wherein the first upper support seat and the first lower support seat are symmetrically distributed corresponding to the second upper support seat and the second lower support seat, the mechanical locks in the symmetric distribution are correspondingly located outside the symmetrically distributed hydraulic cylinders, an erection hinge hole is provided at one end of the erection frame, and a protective pad is provided on the arc-shaped support seat.

[0008] Further, for a frame-type erection arm for sea-state hot launch of a rocket according to the present invention, wherein the symmetrically distributed hydraulic cylinders in the support locking assembly are connected with hydraulic pipelines, the hydraulic pipelines include an oil supply pipeline and an oil return pipeline correspondingly communicated with the positive cavity and the reverse cavity of the hydraulic cylinder, and a hydraulic lock is provided between the oil supply pipeline and the oil return pipeline.

[0009] Further, for a frame-type erection arm for sea-state hot launch of a rocket according to the present invention, wherein a pilot-operated check valve is provided on the oil supply pipeline between the hydraulic lock and the hydraulic cylinder.

[0010] Further, for a frame-type erection arm for sea-state hot launch of a rocket according to the present invention, wherein a one-way throttle valve is provided on the oil return pipeline between the hydraulic lock and the hydraulic cylinder.

[0011] Further, for a frame-type erection arm for sea-state hot launch of a rocket according to the present invention, wherein a speed control valve is provided on the oil return pipeline, and the hydraulic lock is located between the speed control valve and the hydraulic cylinder.

[0012] Further, for a frame-type erection arm for sea-state hot launch of a rocket according to the present invention, wherein a first reversing valve and a second reversing valve are provided between the oil supply pipeline and the oil return pipeline, and the first reversing valve and the second reversing valve are located between the hydraulic lock and the speed control valve.

[0013] Further, for a frame-type erection arm for sea-state hot launch of a rocket according to the present invention, wherein the first reversing valve is a three-position four-way reversing valve, and the second reversing valve is a two-position four-way reversing valve.

[0014] Compared with the prior art, a frame-type erection arm for sea-state hot launch of a rocket of the present invention has the following advantages: By providing an erection frame, a first upper support seat, a second upper support seat, a first lower support seat, and a second lower support seat distributed circumferentially are arranged in the erection frame. The first upper support seat, the second upper support seat, the first lower support seat, and the second lower support seat adopt an arc-shaped structure and are arranged along the length direction of the erection frame. A plurality of support and locking components are arranged at intervals along the length direction of the erection frame between the first lower support seat and the second lower support seat. The support and locking components are provided with arc-shaped brackets, and symmetrically distributed hydraulic cylinders are arranged between the arc-shaped brackets and the erection frame. Thus, a frame-type erection arm for sea-state hot launch of a rocket with a simple structure, convenient operation, stable support, safety, and reliability is formed. In practical applications, first, the rocket is placed in the frame-type erection arm, and then the hydraulic cylinders of each support and locking component are extended, and the rocket body is pressed by the arc-shaped brackets, so that the rocket can be tightly fixed between the first upper support seat, the second upper support seat, and each support and locking component. Compared with the prior art, not only can the rocket be kept stable in the horizontal state, but also the rocket can be effectively supported from the horizontal state to the vertical state during the erection process, improving the support stability. After the erection is in place, by retracting the hydraulic cylinders, the arc-shaped brackets can quickly avoid the launch trajectory of the rocket, improving the safety and reliability, and having the characteristics of simple structure and convenient operation.

[0015] The following further details a frame-type erection arm for sea-state hot launch of a rocket of the present invention in conjunction with the specific embodiments shown in the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of a frame-type erection arm for sea-state hot launch of a rocket of the present invention;

[0017] Figure 2 is the axonometric view of a frame-type erection arm for sea-state hot launch of a rocket of the present invention;

[0018] Figure 3 is the left view of a frame-type erection arm for sea-state hot launch of a rocket of the present invention;

[0019] Figure 4 is the schematic diagram of the hydraulic pipeline in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] It should be noted first that the orientation words such as upper, lower, left, right, front, and back in the present invention are only described according to the accompanying drawings for easy understanding, and do not limit the technical solution and the scope of protection of the present invention.

[0021] Such as Figures 1 to 4The specific implementation of a frame - type erection arm for sea - state hot launch of a rocket according to the present invention is shown. It includes an erection frame 1, in which a first upper support seat 2, a second upper support seat 3, a first lower support seat 4, and a second lower support seat 5 are arranged circumferentially. The first upper support seat 2, the second upper support seat 3, the first lower support seat 4, and the second lower support seat 5 adopt an arc - shaped structure and are arranged along the length direction of the erection frame 1. A plurality of support and locking components are arranged at intervals along the length direction of the erection frame 1 between the first lower support seat 4 and the second lower support seat 5. The support and locking components are provided with an arc - shaped support 6, and symmetrically distributed hydraulic cylinders 7 are arranged between the arc - shaped support 6 and the erection frame 1. Through the above - mentioned structural arrangement, a frame - type erection arm for sea - state hot launch of a rocket is formed. In practical applications, first, the rocket is placed in the frame - type erection arm, and then the hydraulic cylinders 7 of each support and locking component are extended, and the rocket body is pressed by the arc - shaped support 6, so that the rocket can be tightly fixed between the first upper support seat 2, the second upper support seat 3, and each support and locking component. Compared with the prior art, not only can the rocket be kept stable in the horizontal state, but also the rocket can be effectively supported from the horizontal state to the vertical state during the erection process, improving the support stability. After the erection is in place, by retracting the hydraulic cylinders 7, the arc - shaped support 6 can quickly avoid the launch trajectory of the rocket, improving the safety and reliability, and having the characteristics of simple structure and convenient operation. It should be noted that the data and positions of the support and locking components are set according to the gravity load of the rocket and the pressure that the rocket body can withstand. The rocket and the rocket body in this article should be understood as the same concept. In practical applications, the present invention usually arranges the first upper support seat 2 and the first lower support seat 4 symmetrically with the second upper support seat 3 and the second lower support seat 5 to ensure the balance of the rocket's force and the structural stability. An erection hinge hole is provided at one end of the erection frame 1 to improve the convenience of hinging with the erection support. A protective pad is provided on the arc - shaped support 6 to protect the rocket. The protective pad can be made of various materials such as rubber and felt.

[0022] As an optimization solution, in this specific embodiment, a support beam 11 corresponding to the support locking assembly is provided on the erection frame 1, which reduces the weight while ensuring the structural stability, and the hydraulic cylinder 7 is fixed in the hole position on the support beam 11. Wherein, the piston rod of the hydraulic cylinder 7 is connected to the hinge seat 61 on the arc-shaped support 6 through a pin shaft. This structure is conducive to reducing the volume and improving the structural compactness by providing hole positions on the support beam 11 and placing the hydraulic cylinder 7 in the hole positions; by hinging the piston rod of the hydraulic cylinder 7 to the hinge seat 61 on the arc-shaped support 6, the adaptability of the arc-shaped support 6 to the rocket is improved. As an optimization solution, in this specific embodiment, the support locking assembly also sets symmetrically distributed mechanical locks 8 between the arc-shaped support 6 and the support beam 11, and the mechanical lock 8 adopts the following structure: including upper lugs 81 and lower lugs 82 correspondingly fixed on the arc-shaped support 6 and the support beam 11, the upper lugs 81 and the lower lugs 82 are respectively hinged to the upper nut 83 and the lower nut 84 through pin shafts, and the upper nut 83 and the lower nut 84 are connected by a double-headed bolt 85. Wherein, the thread directions at both ends of the double-headed bolt 85 are opposite. This structure sets symmetrically distributed mechanical locks 8. After the hydraulic cylinder 7 extends in place, the upper nut 83 is installed on the upper lug 81 through a pin shaft and the double-headed bolt 85 is tightened. Through the self-locking function of the mechanical lock 8, the arc-shaped support 6 can be kept in position, avoiding the problem of the change of the support position caused by the thermal expansion and contraction of the oil due to the change of the external environment such as temperature, enhancing the stability and reliability, and having the characteristics of simple structure and convenient operation. In practical applications, the present invention usually sets symmetrically distributed mechanical locks 8 correspondingly outside the symmetrically distributed hydraulic cylinders 7.

[0023] As a specific embodiment, as Figure 4 shown, the present invention connects symmetrically distributed hydraulic cylinders 7 in the support locking assembly to hydraulic pipelines. The hydraulic pipelines specifically include an oil supply pipeline 71 and an oil return pipeline 72 correspondingly connected to the positive cavity and the reverse cavity of the hydraulic cylinder 7, and a hydraulic lock 73 is provided between the oil supply pipeline 71 and the oil return pipeline 72. The hydraulic lock 73 is conducive to achieving zero leakage in the extended state of the hydraulic cylinder 7 and maintaining the position when retracted in place, ensuring the stability and reliability. As an optimization solution, in this specific embodiment, a pilot-operated check valve 74 is provided on the oil supply pipeline 71 between the hydraulic lock 73 and the hydraulic cylinder 7. Cooperating with the hydraulic lock 73, it forms a hydraulic locking form with one lock for the reverse cavity of the hydraulic cylinder and two locks for the positive cavity, enhancing the stability and reliability. At the same time, in this specific embodiment, a one-way throttle valve 75 is provided on the oil return pipeline 72 between the hydraulic lock 73 and the hydraulic cylinder 7. While ensuring a certain back pressure in the reverse cavity of the hydraulic cylinder 7, by adjusting the opening degree, it can ensure that the liquid resistance of each hydraulic cylinder in the support locking assembly is basically the same, avoiding additional loads on the arc-shaped support 6.

[0024] In practical applications, the present invention also provides a speed control valve 76 on the oil return pipeline 72, and positions the hydraulic lock 73 between the speed control valve 76 and the hydraulic cylinder 7 to control the oil return speed of the oil return pipeline and improve the stability and reliability. In addition, to prevent hydraulic oil from flowing into the hydraulic cylinder 7 during the erection process, resulting in abnormal retraction, the present invention provides a first reversing valve 77 and a second reversing valve 78 between the oil supply pipeline 71 and the oil return pipeline 72, and positions the first reversing valve 77 and the second reversing valve 78 between the hydraulic lock 73 and the speed control valve 76 to enhance the safety and reliability. In practical applications, the present invention generally uses a three-position four-way electromagnetic reversing valve for the first reversing valve 77 and a two-position four-way electromagnetic reversing valve for the second reversing valve 78 for easy control.

[0025] Practical applications have shown that the frame-type erection arm for rocket sea-state hot launch provided by the present invention can produce the following beneficial effects: 1. In the horizontal state, by distributing the gravity load of the rocket to multiple support and locking components arranged at intervals, it can ensure that the pressure of each support and locking component on the rocket does not exceed the required value of the rocket body, ensuring safety and reliability; 2. During the erection process, through the extrusion and fixation of the rocket body by each support and locking component, the rocket can be effectively supported from the horizontal state to the vertical state, improving stability and reliability; 3. After the erection is in place, by retracting the hydraulic cylinder, the arc-shaped support can quickly avoid the launch trajectory of the rocket to prevent affecting the safety of rocket launch.

[0026] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of protection of the present invention. Without departing from the design concept of the present invention, various deformations made by those skilled in the art based on the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A frame-type erection arm for the sea-state hot launch of a rocket, characterized in that, It includes an erection frame (1), in which there are first upper support seats (2), second upper support seats (3), first lower support seats (4) and second lower support seats (5) distributed circumferentially. The first upper support seats (2), second upper support seats (3), first lower support seats (4) and second lower support seats (5) are arc-shaped and arranged along the length direction of the erection frame (1). Between the first lower support seat (4) and the second lower support seat (5), there are multiple support and locking components distributed at intervals along the length direction of the erection frame (1). The support and locking components include arc-shaped brackets (6), and there are symmetrically distributed hydraulic cylinders (7) between the arc-shaped brackets (6) and the erection frame (1). The erection frame (1) is provided with support beams (11) corresponding to the support and locking components. The hydraulic cylinders (7) are fixed in the holes on the support beams (11), and the piston rods of the hydraulic cylinders (7) are connected to the hinge seats (61) on the arc-shaped brackets (6) through pin shafts. There are also symmetrically distributed mechanical locks (8) between the arc-shaped brackets (6) and the support beams (11). The mechanical locks (8) include upper ear plates (81) and lower ear plates (82) fixedly corresponding to the arc-shaped brackets (6) and the support beams (11). The upper ear plates (81) and the lower ear plates (82) are respectively hinged with upper nuts (83) and lower nuts (84) through pin shafts, and the upper nuts (83) and the lower nuts (84) are connected by a double-headed bolt (85). The thread directions at both ends of the double-headed bolt (85) are opposite.

2. The frame type erection arm for rocket sea state hot launch according to claim 1, characterized in that, The first upper support seat (2) and the first lower support seat (4) are symmetrically distributed corresponding to the second upper support seat (3) and the second lower support seat (5). The symmetrically distributed mechanical locks (8) are correspondingly located outside the symmetrically distributed hydraulic cylinders (7). One end of the erection frame (1) is provided with an erection hinge hole, and there is a protective pad on the arc-shaped bracket (6).

3. The frame type erection arm for rocket sea state hot launch according to claim 2, characterized in that, The symmetrically distributed hydraulic cylinders (7) in the support and locking components are connected with hydraulic pipelines. The hydraulic pipelines include an oil supply pipeline (71) and an oil return pipeline (72) correspondingly connected to the positive cavity and the reverse cavity of the hydraulic cylinders (7). A hydraulic lock (73) is arranged between the oil supply pipeline (71) and the oil return pipeline (72).

4. A frame type erection arm for sea state hot launch of a rocket according to claim 3, characterized in that A pilot-operated check valve (74) is arranged on the oil supply pipeline (71) between the hydraulic lock (73) and the hydraulic cylinder (7).

5. The frame type erection arm for rocket sea state hot launch according to claim 4, characterized in that, A one-way throttle valve (75) is arranged on the oil return pipeline (72) between the hydraulic lock (73) and the hydraulic cylinder (7).

6. The frame type erection arm for sea state hot launch of a rocket according to claim 5, characterized in that, A speed control valve (76) is arranged on the oil return pipeline (72), and the hydraulic lock (73) is located between the speed control valve (76) and the hydraulic cylinder (7).

7. A frame-type erection arm for rocket sea-state hot launch according to claim 6, characterized in that, A first reversing valve (77) and a second reversing valve (78) are arranged between the oil supply pipeline (71) and the oil return pipeline (72). The first reversing valve (77) and the second reversing valve (78) are located between the hydraulic lock (73) and the speed control valve (76).

8. A frame type erection arm for sea state hot launch of a rocket, characterized in that, The first reversing valve (77) is a three-position four-way reversing valve, and the second reversing valve (78) is a two-position four-way reversing valve.

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