阅读说明：本技术 一种采用全封闭式热防护结构的支撑臂 (Support arm adopting totally-enclosed heat protection structure ) 是由 宋永彬 杨卓 刘力改 钟国欣 王大鹏 张丽静 李洪波 赵继亮 曹斌 于 2020-07-08 设计创作，主要内容包括：本发明属于火箭发射技术领域,具体涉及一种采用全封闭式热防护结构的支撑臂,其包括支撑臂本体、位移测量装置、压力监测装置、气动装置、移动护罩和固定护罩。其中,所述的位移测量装置设置有两个,对称设置于支撑臂本体的外部两侧；所述的压力监测装置设置于支撑臂本体的内部上方,位于支撑臂本体的中心,并与支承机构可靠配合；所述的气动装置设置于支撑臂本体的外侧壁上。与现有技术相比,本发明采用全封闭式热防护结构的支撑臂,可以有效防护火箭发射时产生的超高温尾焰,冷却水系统喷淋降噪后产生的高温蒸气对支撑臂本体、各电子元器件、气动装置以及其线缆、管路等零部件的热烧蚀和热冲击。(The invention belongs to the technical field of rocket launching, and particularly relates to a supporting arm adopting a totally-enclosed heat protection structure. The two displacement measuring devices are symmetrically arranged on two outer sides of the supporting arm body; the pressure monitoring device is arranged above the interior of the support arm body, is positioned in the center of the support arm body and is reliably matched with the supporting mechanism; the pneumatic device is arranged on the outer side wall of the support arm body. Compared with the prior art, the support arm with the totally-enclosed thermal protection structure can effectively protect the ultrahigh-temperature tail flame generated during rocket launching, and the thermal ablation and thermal shock of high-temperature steam generated after the cooling water system sprays and reduces noise to the support arm body, various electronic components, pneumatic devices, cables, pipelines and other parts.)

1. A supporting arm adopting a totally enclosed heat protection structure is characterized by comprising a supporting arm body (1), a displacement measuring device (2), a pressure monitoring device (3), a pneumatic device (4), a movable shield (5) and a fixed shield (6); two displacement measuring devices (2) are arranged and symmetrically arranged at two sides of the outer part of the support arm body (1); the pressure monitoring device (3) is arranged above the interior of the support arm body (1), is positioned at the center of the support arm body (1), and is reliably matched with the supporting mechanism; the pneumatic device (4) is arranged on the outer side wall of the support arm body (1);

the movable shield (5) is fastened outside the upper end of the support arm body (1) through bolts, the fixed shield (6) is positioned below the movable shield (5), the fixed shield (6) is connected with the movable shield (5), and the fixed shield (6) is fastened outside the lower end of the support arm body (1) through bolts; the displacement measuring device (2), the pressure monitoring device (3), the pneumatic device (4) and cables or pneumatic pipelines thereof are all positioned inside the movable shield (5) and the fixed shield (6) so as to realize totally-enclosed thermal protection.

2. A support arm with a totally enclosed heat protection structure as claimed in claim 1, wherein the exterior of said mobile shield (5) and said fixed shield (6) are coated with a heat protection coating, which together achieve totally enclosed heat protection for the support arm; the staggered closed structure is adopted between the movable shield (5) and the fixed shield (6), and the installation gap is filled with heat insulation materials.

3. A support arm with a totally enclosed thermal protection structure according to claim 1 or 2, wherein the cables of the displacement measuring device (2) and the pressure monitoring device (3) pass through the enclosed space between the support arm body (1) and the movable shield (5) and the fixed shield (6) from the upper end, enter the inside of the support arm body (1), and then enter the body of the launching pad (7) to be connected to the remote control system.

4. A support arm with a totally enclosed heat protection structure according to claim 1 or 2, characterized in that, the support arm body (1) comprises a transmission device (8), a screw-nut mechanism (9), a support mechanism and a wind-proof pull rod assembly (10); the device comprises a transmission device (8), a screw and nut mechanism (90), a nut upper end ring in the screw and nut mechanism (9), a supporting mechanism, a windproof pull rod assembly (10), a supporting seat (12) and a guide frame (11), wherein the transmission device is connected with the screw and nut mechanism (90) through an involute spline, the nut upper end ring in the screw and nut mechanism plays a supporting role and is reliably matched with the supporting mechanism, the supporting mechanism comprises the supporting seat (12) and the guide frame (11), the windproof pull rod assembly (10) is arranged in the supporting seat (12) and the guide frame (11) and is used for supporting an arrow body and executing lifting action.

5. A support arm with a totally enclosed heat protection structure according to claim 3, characterized in that, the support arm body (1) comprises a transmission device (8), a screw-nut mechanism (9), a support mechanism and a windproof draw bar assembly (10); the device comprises a transmission device (8), a screw and nut mechanism (9), a nut upper end ring in the screw and nut mechanism (9), a supporting mechanism, a windproof pull rod assembly (10) and a pneumatic device (4), wherein the transmission device is connected with the screw and nut mechanism (9) through an involute spline, the nut upper end ring in the screw and nut mechanism (9) plays a supporting role and is reliably matched with the supporting mechanism, the supporting mechanism comprises a supporting seat (12) and a guide frame (11), the windproof pull rod assembly (10) is arranged in the supporting seat (12) and the guide frame (11), the supporting seat (12) and the guide frame (11) are used for.

6. A support arm with a totally enclosed thermal protection structure according to claim 1, 2 or 5, wherein the pneumatic line of the pneumatic device (4) is a hose and is connected with the wind-proof pull rod assembly (10) by a ferrule type joint, and the hose is fixed on the support base (12) by a hose clamp and can move up and down along with the support mechanism; the lower part of a pneumatic pipeline of the pneumatic device (4) adopts a metal pipeline, and is connected with the hose by adopting a conversion joint.

7. A support arm with a totally enclosed thermal protection structure as claimed in claim 3, wherein the pneumatic tube of said pneumatic device (4) is a flexible tube, and is connected to the wind-proof pull rod assembly (10) by means of a ferrule type joint, and is fixed on the support base (12) by a pipe clamp, and can move up and down with the support mechanism; the lower part of a pneumatic pipeline of the pneumatic device (4) adopts a metal pipeline, and is connected with the hose by adopting a conversion joint.

8. A support arm with a totally enclosed thermal protection structure according to claim 4, wherein the pneumatic line of said pneumatic device (4) is a hose and is connected to the wind-proof pull rod assembly (10) by means of a ferrule type joint, and is fixed on the support base (12) by a pipe clamp and can move up and down with the support mechanism; the lower part of a pneumatic pipeline of the pneumatic device (4) adopts a metal pipeline, and is connected with the hose by adopting a conversion joint.

Technical Field

The invention belongs to the technical field of rocket launching, and particularly relates to a supporting arm adopting a totally-enclosed thermal protection structure.

Background

The existing carrier rocket in China generally adopts liquid fuel, when the rocket is launched, the liquid fuel is rapidly combusted to generate huge thrust, the temperature of tail flames reaches about 3000 ℃, and when the rocket is launched, a cooling water system is used for spraying and reducing noise, a large amount of cooling water is converted into ultrahigh-temperature steam under the action of the tail flames, and the ground equipment is continuously thermally ablated and thermally shocked. The support arm is used as the main supporting equipment of the rocket, the thermal protection is particularly important, the thermal protection coating is coated on the outer side of the support arm, the metal surface can be insulated, the thermal ablation and the thermal shock are reduced, and the support arm is prevented from generating thermal fatigue, thermal cracking and thermal fracture under the action of repeatedly launched thermal shock loads, so that the working reliability of the support arm is ensured, the maintenance frequency is reduced, and the service life is prolonged.

There are many places on the support arm that need be connected with ground equipment: cables for communication connection of electrical elements in the displacement measuring device and the pressure monitoring device with a remote control system, pneumatic pipelines of a pneumatic device and the like. Then when the support arm goes up and down to move, these cables and pneumatic pipeline can go up and down to move along with the support arm, just can't utilize fixed heat protector to carry out thermal-insulated protection, need very big space along with the support arm goes up and down, and the narrow and small event in outside available space can not adopt outside thermal-insulated protection, moreover, the displacement sensor of current support arm adopts built-in form mostly, if the trouble takes place when carrying out the task is unable in time maintenance change, must disassemble the support arm just can, greatly reduced the maintainability of equipment, also bring certain risk to going on smoothly of task.

At present, the main domestic solution to the problem is as follows: the cable and the pipeline are externally arranged and exposed outside the support arm body, and after the verticality adjusting task is finished, the cable of the electronic component is manually disassembled; the pneumatic pipeline is subjected to ablation by the tail flame, and is replaced after one task. This solution presents the following problems:

1. an "unattended" automated mode of operation cannot be achieved.

2. Before the rocket is launched, the electronic component cable is manually disassembled, and the rocket is considered to be filled with liquid fuel, so that certain danger is caused.

3. The pneumatic pipeline needs to be replaced after each launching task, so that the equipment cost is increased, the functional performance of the pneumatic device needs to be debugged again after replacement, and the launching efficiency is reduced.

4. This external cable of support arm and pipeline are external, and the aesthetic property is relatively poor, and easily interferes with other ground equipment launches, has the potential safety hazard.

The original thermal protection structure of the support arm can not meet the task requirements, and a support arm adopting a fully-closed thermal protection structure needs to be designed and applied to ground equipment for rocket launching.

Disclosure of Invention

The invention aims to provide a supporting arm adopting a totally-enclosed heat protection structure, which has high safety and good working reliability, can realize unattended operation of equipment when a launching task is executed, can reduce maintenance times, prolong the service life, reduce the equipment cost and improve the working efficiency so as to solve the problems in the prior art.

The technical scheme for solving the technical problem is as follows:

a supporting arm adopting a totally-enclosed heat protection structure comprises a supporting arm body 1, a displacement measuring device 2, a pressure monitoring device 3, a pneumatic device 4, a movable shield 5 and a fixed shield 6. Two displacement measuring devices 2 are arranged and symmetrically arranged on two outer sides of the support arm body 1; the pressure monitoring device 3 is arranged above the interior of the support arm body 1, is positioned in the center of the support arm body 1, and is reliably matched with the supporting mechanism; the pneumatic device 4 is arranged on the outer side wall of the support arm body 1;

the movable shield 5 is fastened outside the upper end of the support arm body 1 through bolts, the fixed shield 6 is positioned below the movable shield 5, the fixed shield 6 is connected with the movable shield 5, and the fixed shield 6 is fastened outside the lower end of the support arm body 1 through bolts; the displacement measuring device 2, the pressure monitoring device 3, the pneumatic device 4, cables and pneumatic pipelines thereof are all positioned inside the movable shield 5 and the fixed shield 6, so that the totally-enclosed thermal protection is realized.

Furthermore, the outer parts of the movable shield 5 and the fixed shield 6 are coated with heat protection coatings to jointly realize the totally-enclosed heat protection of the support arms; the installation between the movable shield 5 and the fixed shield 6 adopts a staggered closed structure, and the installation gap is filled with heat insulation materials.

Furthermore, cables of the displacement measuring device 2 and the pressure monitoring device 3 enter the supporting arm body 1 from the upper end through the closed space between the supporting arm body 1 and the movable shield 5 and the fixed shield 6, and then enter the table body of the launching table 7 to be connected to the remote control system.

Further, the support arm body 1 comprises a transmission device 8, a screw-nut mechanism 9, a supporting mechanism and a windproof pull rod assembly 10; the transmission device 8 is connected with the screw and nut mechanism 9 through an involute spline, the upper end ring of a nut in the screw and nut mechanism 9 plays a supporting role and is reliably matched with the supporting mechanism, the supporting mechanism comprises a supporting seat 12 and a guide frame 11, a windproof pull rod assembly 10 is arranged in the supporting seat 12 and the guide frame 11 and is used for supporting an arrow body and executing lifting action, and the windproof pull rod assembly 10 can extend and retract under the action of the pneumatic device 4.

Furthermore, the upper part of a pneumatic pipeline of the pneumatic device 4 adopts a hose, is connected with the windproof pull rod assembly 10 by using a ferrule type joint, is fixed on the supporting seat 12 by a pipe clamp and can move up and down along with the supporting mechanism; the lower part of the pneumatic pipeline of the pneumatic device 4 adopts a metal pipeline, and is connected with the hose by adopting a conversion joint.

The invention has the beneficial effects that:

compared with the prior art, the support arm with the totally-enclosed thermal protection structure can effectively protect the ultrahigh-temperature tail flame generated during rocket launching, and the thermal ablation and thermal shock of high-temperature steam generated after the cooling water system sprays and reduces noise to the support arm body, various electronic components, pneumatic devices, cables, pipelines and other parts. The thermal protection structure is particularly suitable for unattended ground equipment, and meanwhile, the thermal protection structure and the thickness of the thermal protection coating are changed, so that the thermal protection structure is suitable for high-temperature occasions when different rockets are launched.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a support arm using a totally enclosed heat protection structure provided in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a support arm body of a support arm using a totally enclosed heat protection structure according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a movable shield and a fixed shield of a support arm using a totally enclosed heat protection structure according to an embodiment of the present invention.

In the figure: 1 supporting the arm body; 2 a displacement measuring device; 3 a pressure monitoring device; 4, a pneumatic device; 5 moving the shield; 6 fixing the shield; 7 a transmitting station; 8, a transmission device; 9 screw and nut mechanisms; 10, a windproof draw bar assembly; 11 a guide frame; 12 supporting the base.

Detailed Description

The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.

It is to be understood that the appended drawings are not to scale, but are merely drawn with appropriate simplifications to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and use environment.

In the several figures of the drawings, identical or equivalent components (elements) are referenced with the same reference numerals.

Fig. 1 is a schematic diagram of an overall structure of a support arm using a totally enclosed heat protection structure provided in an embodiment of the present invention. Referring to fig. 1, in the present embodiment, the support arm adopting the totally enclosed heat protection structure includes a support arm body 1, a displacement measuring device 2, a pressure monitoring device 3, a pneumatic device 4, a movable shield 5, and a fixed shield 6. The two displacement measuring devices 2 are symmetrically arranged at two sides of the outer part of the support arm body 1, and the pressure monitoring device 3 is arranged above the inner part of the support arm body 1, specifically, arranged at the center of the support arm body 1 and reliably matched with the supporting mechanism; the pneumatic device 4 is arranged outside the support arm body 1, for example, it may be arranged on any side wall on which the displacement measuring device 2 is arranged. The displacement measuring device 2, the pressure monitoring device 3 and the pneumatic device 4 are arranged inside the protective cover of the supporting arm through reasonable structural design, and cables and pipelines lead to the inside of the launching platform and are connected with remote equipment.

The movable shield 5 is fastened outside the upper end of the support arm body 1 through bolts, the fixed shield 6 is located below the movable shield 5, the fixed shield 6 is connected with the movable shield 5, and the fixed shield 6 is fastened outside the lower end of the support arm body 1 through bolts.

Further, the exterior of the moving shield 5 and the fixed shield 6 may be coated with a thermal protective coating, together achieving a fully enclosed thermal protection of the support arms.

The movable shield 5 and the fixed shield 6 are installed on the outer side of the support arm body 1 and fixedly connected through bolts, heat insulation materials are filled at the interface, and the displacement measuring device 2, the pressure monitoring device 3, the pneumatic device 4, cables of the pneumatic device and a pneumatic pipeline of the pneumatic device are subjected to totally-enclosed thermal protection. Specifically, cables of the displacement measuring device 2 and the pressure monitoring device 3 enter the inside of the support arm body 1 from the upper end through the enclosed space between the support arm body 1 and the movable shield 5 and the fixed shield 6, and then enter the table body of the launching table 7 to be connected to the remote control system. Wherein because the displacement measuring device 2 function is the displacement value when measuring the support arm and going up and down to move in real time, so its upper end cable carries out length redundancy processing in the upper portion, causes the damage of dragging to the cable when avoiding the support arm body 1 to go up and down to move. Wherein the installation between the moving shield 5 and the fixed shield 6 adopts a staggered closed structure, and the installation gap is filled with heat insulating material, see fig. 3.

Fig. 2 is a schematic structural diagram of a support arm body of a support arm using a totally enclosed heat protection structure according to an embodiment of the present invention. Referring to fig. 2, in the present embodiment, the support arm body 1 includes a transmission 8, a screw-nut mechanism 9, a support mechanism, and a wind-proof lever assembly 10. The transmission device 8 is connected with the screw-nut mechanism 9 through an involute spline, the upper end ring of a nut in the screw-nut mechanism 9 plays a supporting role and is reliably matched with the supporting mechanism, the supporting mechanism comprises a supporting seat 12 and a guide frame 11, a windproof pull rod assembly 10 is arranged in the supporting seat 12 and the guide frame 11 and is used for supporting an arrow body and executing lifting action, and the windproof pull rod assembly 10 can extend and retract under the action of the pneumatic device 4.

The upper part of a pneumatic pipeline of the pneumatic device 4 adopts a hose, is connected with the windproof pull rod assembly 10 by a ferrule type joint, is fixed on a supporting seat 12 by a pipe clamp and can move up and down along with a supporting mechanism; the lower part adopts a metal pipeline which is connected with the hose by adopting a crossover sub.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents, and all changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.