CN117442914A

CN117442914A - Automatic fire extinguishing device for high-modulus rocket engine

Info

Publication number: CN117442914A
Application number: CN202311346460.5A
Authority: CN
Inventors: 赵东旭; 宗哲英; 冀莎莎; 叶俊生; 麻宏年; 纪学军; 顾显超; 宋飞; 张凤林
Original assignee: Inner Mongolia Agricultural University
Current assignee: Inner Mongolia Agricultural University
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2024-01-26

Abstract

The invention relates to the technical field of rocket engine automatic fire extinguishing, in particular to a high-modulus rocket engine automatic fire extinguishing device, which comprises a bottom plate and a pair of moving parts arranged on the bottom plate, wherein a rotating plate is arranged above the bottom plate, and the rotating plate is connected with the bottom plate through a rotating mechanism so as to enable the rotating plate to horizontally rotate on the bottom plate; a supporting plate is arranged above the rotating plate, and the supporting plate is connected with the rotating plate through an adjusting mechanism so as to adjust the angle between the supporting plate and the rotating plate; the support plate is provided with a translation mechanism, the translation mechanism is provided with a height control mechanism, and the spray pipe assembly for extinguishing fire is arranged on the height control mechanism; the bottom plate is also provided with a stop mechanism for clamping the rotating rod so as to enable the bottom plate to be positioned at a designated position. Under the cooperation of each mechanism, can carry out fire extinguishing treatment to the engine of equidimension to the position of adjusting spray tube assembly, in order to put out a fire to the engine that is in other positions or towards other angles, improved this extinguishing device's adaptability and flexibility.

Description

Automatic fire extinguishing device for high-modulus rocket engine

Technical Field

The invention relates to the technical field of rocket engine automatic fire extinguishing, in particular to a high-modulus rocket engine automatic fire extinguishing device.

Background

The high-altitude simulation test is a technology for simulating the high-altitude meteorological environment. In such experiments, it is necessary to test the performance of the target system, and the test results can be input into a computer model in the experiments to evaluate different designs and development schemes.

In the rocket engine field, high-altitude simulation tests are widely used to test and verify the characteristics of engines in extreme environments. However, at present, in view of small flame injection intensity and low risk of small and medium-sized engine test runs in China, a mechanical plug and manual plugging mode is adopted, the time required for extinguishing tail flame depends on whether the plug structure and manufacturability are reasonable or not and whether an operator can grasp plugging time or not, and the process has high randomness and risk. In the test run of a large solid rocket engine, high-frequency vibration and high temperature exist in consideration of the severe test run environment, personnel cannot approach, and the method for processing the lagging tail flame of the manual field plugging is not suitable any more.

The Chinese patent document with publication number of CN115317841A discloses an automatic fire extinguishing device for a high-altitude simulation test of a solid rocket engine, and specifically discloses: the device comprises a hydraulic trolley, a high-pressure hose, a spraying pipeline, a nozzle, a spraying cover, a rail, a hydraulic pump station, a control system, a control valve group, a driving valve group, a carbon dioxide bottle group, a bottle group bracket, a collecting pipe and a driving pipeline. The carbon dioxide bottle group is combined through a bottle group bracket and a collecting pipe, carbon dioxide gas is output through a driving pipeline matched with a control valve group and a driving valve group, and the driving pipeline and the valve group are fixed through a fixed bracket and are connected to a spraying pipeline, a nozzle and a spraying cover through high-pressure hoses; the hydraulic pump station is connected with the hydraulic trolley through the high-pressure oil pipe, so that the hydraulic trolley is convenient to assemble and adjust, remote control, accurate and stable in action execution, reliable in operation of the multi-stage cylinder, the hydraulic motor and the air injection system, effective in fire extinguishment and good in effect.

From the above, the existing fire extinguishing device is successfully applied to high-altitude simulation test of an engine, is matched with a remote monitoring system to monitor the scene, and is operated remotely by using a control system to control in sequence so as to perform lifting, walking and jet fire extinguishing; the lifting system and the travelling mechanism act according to the time sequence, and the fire extinguishing agent nozzle is deeply arranged in the diffuser, so that carbon dioxide is sprayed into the combustion chamber to perform total submerged fire extinguishing, the harm of residual flame to the combustion chamber is reduced, the heat insulation layer of the engine is better protected, and the device is effectively assisted for subsequent experiments. However, the existing fire extinguishing device can only perform lifting and translational walking to adapt to engines with different sizes; however, the existing fire extinguishing device can only perform fire extinguishing treatment on the engine fire-extinguishing pipe in a horizontal state, and when the engine fire-extinguishing pipe is positioned at other positions or faces other angles, the nozzle of the existing fire extinguishing device cannot be aligned with the throat part of the engine fire-extinguishing pipe, and therefore adaptability and flexibility are lacking. Therefore, a high-model rocket engine automatic fire extinguishing device is provided to solve the technical problems.

Disclosure of Invention

The invention aims to provide a high-model rocket engine automatic fire extinguishing device aiming at the defects of the prior art, so as to solve the technical problem that the existing fire extinguishing device cannot extinguish fire of engine fire-extinguishing pipes at other positions or towards other angles.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

the automatic fire extinguishing device for the high-modulus rocket engine comprises a bottom plate and a pair of moving parts arranged on the bottom plate, wherein each moving part comprises a rotating rod and a pair of fixed blocks, the rotating rod is arranged on the corresponding fixed block in a rotating manner, the rotating rod is arranged along the width direction of the bottom plate, and moving wheels are arranged at two ends of the rotating rod; a speed reducing motor is also arranged on the bottom plate, a first gear is arranged on an output shaft of the speed reducing motor, and a second gear meshed with the first gear is arranged on the rotating rod;

a rotating plate is arranged above the bottom plate, and the rotating plate is connected with the bottom plate through a rotating mechanism so as to enable the rotating plate to horizontally rotate on the bottom plate; a supporting plate is arranged above the rotating plate, and the supporting plate is connected with the rotating plate through an adjusting mechanism so as to adjust the angle between the supporting plate and the rotating plate; the support plate is provided with a translation mechanism, the translation mechanism is provided with a height control mechanism, the spray pipe assembly for extinguishing fire is arranged on the height control mechanism, the translation mechanism is used for driving the spray pipe assembly to translate, and the height control mechanism is used for driving the spray pipe assembly to move up and down;

the bottom plate is also provided with a stop mechanism for clamping the rotating rod so as to enable the bottom plate to be positioned at a designated position.

Further, the rotating mechanism comprises a supporting seat fixedly arranged on the bottom plate, the bottom of the rotating plate is fixedly provided with a rotating seat, and the rotating seat is rotationally arranged on the supporting seat; the first worm wheel is arranged on the outer side of the circumference of the rotating seat, the first stepping motor is arranged on the bottom plate through the mounting shell, and a first worm is arranged on an output shaft of the first stepping motor and meshed with the first worm wheel.

Further, a protective shell for protecting the first worm gear is further arranged on the bottom plate.

Further, the adjusting mechanism comprises a movable frame and a pair of support bearings fixedly arranged on the rotating plate, a rotating shaft is rotatably arranged on the support bearings, and the axial direction of the rotating shaft is consistent with the width direction of the rotating plate; the two ends of the rotating shaft are fixedly provided with fixing pieces, the pair of movable frames are arranged along the length direction of the rotating plate and are fixedly connected with different fixing pieces respectively, and the supporting plate is arranged above the movable frames and is fixedly arranged with the movable frames; the rotating plate is also provided with a push-pull component for applying force to the movable frame.

Further, the push-pull assembly comprises a rotating frame and a fixing frame fixedly arranged on the rotating plate, one end of the rotating frame is provided with a connecting shaft, the other end of the rotating frame is provided with a pair of rotatable pulleys, and the connecting shaft is rotationally arranged on the fixing frame; the movable frames are provided with sliding chute rods on one sides close to each other, and a pair of pulleys on the rotating frame are respectively arranged in sliding chutes of different sliding chute rods, and the sliding chute on the sliding chute rods is in a strip shape; the end part of the connecting shaft is provided with a second worm wheel, the rotating plate is provided with a second stepping motor, the output shaft of the second stepping motor is provided with a second worm, and the second worm is meshed with the second worm wheel.

Further, a limiting block used for being in contact with the rotating plate is arranged on one side, close to the supporting bearing, of the supporting plate so as to limit the supporting plate.

Further, the translation mechanism comprises a sliding rail fixedly arranged on the supporting plate and a moving plate arranged above the supporting plate, the sliding rail is arranged along the length direction of the supporting plate, and a sliding block which is arranged in a sliding manner with the sliding rail is fixedly arranged on the moving plate; the third step motor has been installed through the mounting panel to the backup pad bottom, and is equipped with first lead screw on the output shaft of third step motor, and the tip of first lead screw rotates the setting with the fixed first installation piece that sets up in the backup pad, and the bottom of movable plate is equipped with the lug, and the lug passes backup pad and first lead screw threaded connection.

Further, the height control mechanism comprises a guide post which is fixedly arranged on the moving plate and is vertically arranged, a sliding seat is slidably arranged on the guide post, and an installation seat for installing the spray pipe assembly on the sliding seat is arranged on the sliding seat; the movable plate is further provided with a fourth stepping motor with an upward arranged output shaft, the output shaft is provided with a second screw rod, the end part of the second screw rod is rotatably arranged with a second installation block fixedly arranged on the top end of the guide post, the sliding seat is provided with a fixed plate, and the fixed plate is in threaded connection with the second screw rod.

Further, the spray pipe assembly comprises a guide pipe for guiding air, the guide pipe is fixedly arranged with a first fixing seat arranged on the mounting seat, the guide pipe is provided with a spray pipe arranged along the length direction of the supporting plate, and the end part of the spray pipe is provided with a spray head.

Further, the stop mechanism comprises an electric push rod fixedly arranged on the bottom plate through a second fixing seat, a telescopic rod of the electric push rod faces to the rotary rod, a cylindrical stop piece is arranged on the rotary rod, and the surface of the stop piece is a rough surface; the end part of the telescopic rod of the electric push rod is fixedly provided with a stop piece which is used for contacting with the stop piece.

The invention has the beneficial effects that: when the fire is needed to be extinguished, after the gear motor drives the bottom plate to the appointed position on the guide rail, the stop mechanism is operated to clamp the rotating rod, when the rotating mechanism drives the rotating plate to rotate, the adjusting mechanism, the supporting plate, the translation mechanism, the height control mechanism and the spray pipe assembly are rotated together to adjust the position of the spray pipe assembly, so that the spray pipe assembly is aligned to the engine, the height control mechanism is operated again, so that the spray pipe assembly is controlled to be aligned to a fire spraying pipe of the engine, the translation mechanism is operated again, so that the spray pipe assembly is controlled to extend into the throat part of the fire spraying pipe of the engine, and finally, under the action of the air supply system, nitrogen is sprayed out by the spray pipe assembly, so that fire extinguishing treatment is carried out.

Secondly, the adjusting mechanism can adjust the angle between the supporting plate and the rotating plate, the adjusting angle ranges from 0 degrees to 90 degrees, and after the adjusting mechanism is operated, one end of the supporting plate is lifted, so that the angle between the rotating plate and the supporting plate is adjusted; for example, when the angle between the supporting plate and the rotating plate is 90 degrees, the translation mechanism is operated again, the height control mechanism and the spray pipe assembly are driven to move upwards, and when the fire spraying pipe of the engine is arranged downwards, the spray pipe assembly extends into the throat part of the fire spraying pipe from bottom to top, so that under the cooperation of the mechanisms, fire extinguishing treatment can be carried out on engines with different sizes, and the position of the spray pipe assembly is adjusted so as to extinguish fire on engines at other positions or towards other angles, and the adaptability and the flexibility of the fire extinguishing device are improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of another view of the present invention.

Fig. 3 is a schematic structural view of the carriage and the stopper mechanism of the present invention.

Fig. 4 is a schematic structural view of the rotating mechanism of the present invention.

Fig. 5 is a schematic view of the structure of the adjusting mechanism and the supporting plate of the present invention.

Fig. 6 is a schematic view of a first partial structure of the adjusting mechanism of the present invention.

Fig. 7 is a schematic view of a second partial structure of the adjusting mechanism of the present invention.

FIG. 8 is a schematic view of the translation mechanism, height control mechanism and nozzle assembly of the present invention.

FIG. 9 is a schematic view of another view of the translating mechanism, height control mechanism and nozzle assembly of the present invention.

FIG. 10 is a schematic view of the height control mechanism and nozzle assembly of the present invention.

FIG. 11 is a schematic view of the present invention in use.

The reference numerals include:

1. a bottom plate; 2. a rotating rod; 3. a fixed block; 4. a moving wheel; 5. a speed reducing motor; 6. a first gear; 7. a second gear; 8. a cover plate; 9. a rotating plate; 10. a rotating mechanism; 1001. a support base; 1002. a rotating seat; 1003. a first stepping motor; 1004. a first worm; 1005. a first worm wheel; 1006. a mounting shell; 1007. a protective shell; 11. an adjusting mechanism; 1101. a support bearing; 1102. a rotation shaft; 1103. a fixing member; 1104. a movable frame; 1105. a chute rod; 1106. a fixing frame; 1107. a rotating frame; 1108. a pulley; 1109. a second stepping motor; 1110. a second worm; 1111. a second worm wheel; 1112. a limiting block; 12. a support plate; 13. a translation mechanism; 1301. a slide rail; 1302. a moving plate; 1303. a slide block; 1304. a bump; 1305. a third stepper motor; 1306. a mounting plate; 1307. a first screw rod; 1308. a first mounting block; 14. a height control mechanism; 1401. a guide post; 1402. a sliding seat; 1403. a mounting base; 1404. a fixing plate; 1405. a fourth stepping motor; 1406. a second screw rod; 1407. a second mounting block; 15. a spray pipe assembly; 1501. a first fixing seat; 1502. a conduit; 1503. a spray pipe; 1504. a spray head; 16. a stop mechanism; 1601. the second fixing seat; 1602. an electric push rod; 1603. a stop piece; 1604. a stop.

Detailed Description

The invention relates to a high-modulus rocket engine automatic fire extinguishing device which is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, an embodiment of a high-modulus rocket engine automatic fire extinguishing device of the present invention includes a base plate 1 for supporting and a pair of moving members provided on the base plate 1, the moving members being movably provided on a designated guide rail, and when the moving members are operated, the base plate 1 is driven to move on the designated guide rail; the movable part comprises a rotating rod 2 and a pair of fixed blocks 3, wherein the rotating rod 2 is arranged along the width direction of the bottom plate 1, the fixed blocks 3 are fixedly arranged on the bottom plate 1, the rotating rod 2 is rotatably arranged on the fixed blocks 3, the movable wheels 4 are respectively arranged at two ends of the rotating rod 2, the movable wheels 4 are movably arranged with the guide rails, and when the rotating rod 2 rotates positively and negatively, the movable wheels 4 can be driven to roll on the appointed guide rails so as to drive the bottom plate 1 to move back and forth; however, in order to drive the rotating rod 2 to rotate, a gear motor 5 is further installed on the bottom plate 1, a first gear 6 is arranged on an output shaft of the gear motor 5, a second gear 7 meshed with the first gear 6 is further arranged on the rotating rod 2, and when the gear motor 5 is started, the rotating rod 2 is driven to rotate under the action of the transmission of the first gear 6 and the second gear 7. In addition, a cover plate 8 for covering the rotating rod 2 is provided on the bottom plate 1, and the rotating rod 2 is protected by the cover plate 8.

Secondly, a rotating plate 9 is arranged above the bottom plate 1, the rotating plate 9 is connected with the bottom plate 1 through a rotating mechanism 10 so that the rotating plate 9 horizontally rotates on the bottom plate 1, in addition, a supporting plate 12 is arranged above the rotating plate 9, the supporting plate 12 is connected with the rotating plate 9 through an adjusting mechanism 11 so as to adjust the angle between the supporting plate 12 and the rotating plate 9, and when the rotating plate 9 horizontally rotates, the adjusting mechanism 11 and the supporting plate 12 can be carried to rotate together. Further, a translation mechanism 13 is arranged on the supporting plate 12, and a height control mechanism 14 is arranged on the translation mechanism 13, so that the height control mechanism 14 can be driven to move in parallel when the translation mechanism 13 is operated; the spray pipe assembly 15 for fire extinguishment is arranged on the height control mechanism 14, the spray pipe assembly 15 is communicated with a gas supply system for providing nitrogen, the spray pipe assembly 15 can be driven to move up and down when the height control mechanism 14 is operated, and the spray pipe assembly 15 can be controlled to move up and down freely under the cooperation of the translation mechanism 13 and the height control mechanism 14; specifically, when the rotating mechanism 10 drives the rotating plate 9 to rotate, the rotating mechanism can drive the adjusting mechanism 11, the supporting plate 12, the translation mechanism 13, the height control mechanism 14 and the spray pipe assembly 15 to rotate together so as to adjust the position of the spray pipe assembly 15, thereby aligning the spray pipe assembly 15 with the engine, then operating the height control mechanism 14 so as to control the spray pipe assembly 15 to align with a fire spraying pipe of the engine, then operating the translation mechanism 13 so as to control the spray pipe assembly 15 to extend into a throat part of the fire spraying pipe of the engine, and finally under the action of the air supply system, nitrogen is sprayed out by the spray pipe assembly 15, so that fire extinguishing treatment is performed. Secondly, the adjusting mechanism 11 can adjust the angle between the supporting plate 12 and the rotating plate 9, and the angle is between 0 and 90 degrees, and when the adjusting mechanism 11 is operated, one end of the supporting plate 12 is lifted, so that the angle between the rotating plate 9 and the supporting plate 12 is adjusted; for example, when the supporting plate 12 is adjusted to an angle of 90 ° with the rotating plate 9, the translation mechanism 13 is operated again, so that the height control mechanism 14 and the nozzle assembly 15 are driven to move upwards, and when the fire tube of the engine is arranged downwards, the nozzle assembly 15 is extended into the throat of the fire tube from bottom to top, so that under the cooperation of each mechanism, fire extinguishing treatment can be performed on engines with different sizes, and fire extinguishing can be performed on engines at other positions or towards other angles, thereby improving the adaptability and flexibility of the fire extinguishing device.

In addition, in order to prevent the bottom plate 1 from moving on the guide rail due to the impact force of the nozzle assembly 15 during the process of spraying nitrogen gas from the nozzle assembly 15, a stop mechanism 16 for blocking the rotating rod 2 is further provided on the bottom plate 1, so that the bottom plate 1 can be stably placed at a designated position on the guide rail during the fire extinguishing process.

As shown in fig. 4, the rotation mechanism 10 includes a support seat 1001 fixedly disposed on the base plate 1, and a rotation seat 1002 fixedly disposed at the bottom of the rotation plate 9, wherein the rotation seat 1002 is rotatably disposed on the support seat 1001, and the rotation plate 9 can horizontally rotate on the base plate 1 under the cooperation of the support seat 1001 and the rotation seat 1002. However, in order to automatically control the rotation of the rotating plate 9, a first worm wheel 1005 is installed on the outer side of the circumference of the rotating seat 1002, a first stepping motor 1003 is installed on the bottom plate 1 through an installation shell 1006, a first worm 1004 is installed on an output shaft of the first stepping motor 1003, the first worm 1004 is meshed with the first worm wheel 1005, after the first stepping motor 1003 is started, the first worm 1004 is driven to rotate, and under the cooperation of the first worm 1004 and the first worm wheel 1005, the rotating plate 9 can be driven to horizontally rotate on the bottom plate 1. In order to protect the first worm wheel 1005, a protective cover 1007 is further provided on the base plate 1 to prevent impurities from entering the first worm wheel 1005.

As shown in fig. 5 to 7, the adjusting mechanism 11 comprises a movable frame 1104 and a pair of support bearings 1101 fixedly arranged on the rotating plate 9, a rotating shaft 1102 is rotatably arranged on the support bearings 1101, the axial direction of the rotating shaft 1102 is consistent with the width direction of the rotating plate 9, in addition, fixing pieces 1103 are fixedly arranged at two ends of the rotating shaft 1102, the pair of movable frames 1104 are arranged along the length direction of the rotating plate 9 and are fixedly connected with different fixing pieces 1103 respectively, and a supporting plate 12 is arranged above and fixedly arranged with the movable frames 1104; when the movable frame 1104 is biased, the movable frame 1104 is rotated counterclockwise (the rotation direction is based on fig. 5) on the support bearing 1101 by the rotation shaft 1102, thereby adjusting the angle between the support plate 12 and the rotation plate 9.

However, in order to automatically adjust the angle between the support plate 12 and the rotating plate 9, the adjusting mechanism 11 further includes a rotating frame 1107 and a fixing frame 1106 fixedly disposed on the rotating plate 9, wherein a connecting shaft is disposed at one end of the rotating frame 1107, a pair of rotatable pulleys 1108 is disposed at the other end of the rotating frame, and the connecting shaft is rotatably disposed on the fixing frame 1106, so that the rotating frame 1107 can swing on the fixing frame 1106 under the action of the connecting shaft; in addition, a slide groove bar 1105 is provided on each side of the movable frame 1104 which is close to each other, and a pair of pulleys 1108 on the rotating frame 1107 are respectively placed in the slide grooves of the different slide groove bars 1105. The sliding groove on the sliding groove rod 1105 is long-strip, when the movable frame 1104 is placed in a horizontal state, the pulley 1108 is placed at one end of the long-strip sliding groove far away from the fixed frame 1106; when the connecting shaft is rotated anticlockwise (the rotation direction is based on fig. 7), the rotating frame 1107 swings anticlockwise around the center point of the connecting shaft, and the pulley 1108 slides in the sliding groove of the sliding groove rod 1105, so that the rotating frame 1107 applies upward force to the sliding groove rod 1105, and the movable frame 1104 is driven to rotate anticlockwise on the supporting bearing 1101, so that the angle between the supporting plate 12 and the rotating plate 9 is adjusted; conversely, when it is necessary to rotate the movable frame 1104 clockwise on the support bearing 1101, the connecting shaft is rotated clockwise, and the rotating frame 1107 swings clockwise about the center point of the connecting shaft, so that a downward force is applied to the chute rod 1105, and the movable frame 1104 is driven to reset clockwise.

In order to drive the connecting shaft to rotate, a second worm wheel 1111 is arranged at the end part of the connecting shaft, a second stepping motor 1109 is arranged on the rotating plate 9, a second worm 1110 is arranged on the output shaft of the second stepping motor 1109, and the second worm 1110 is meshed with the second worm wheel 1111; when the second stepping motor 1109 is started to drive the second worm 1110 to rotate forward and backward, the connecting shaft can be driven to rotate forward and backward under the cooperation of the second worm 1110 and the second worm wheel 1111, so as to drive the rotating frame 1107 to swing clockwise around the center point of the connecting shaft. In addition, a limiting block 1112 is disposed on one side of the supporting plate 12 near the supporting bearing 1101, and under the action of the limiting block 1112, when the supporting plate 12 is adjusted to be perpendicular to the rotating plate 9, the limiting block 1112 contacts with the top surface of the rotating plate 9, so that the supporting plate 12 cannot continue to move, so as to limit the supporting plate 12.

As shown in fig. 8-9, the translation mechanism 13 includes a sliding rail 1301 fixedly disposed on the supporting plate 12 and a moving plate 1302 disposed above the supporting plate 12, the sliding rail 1301 is disposed along the length direction of the supporting plate 12, and a sliding block 1303 slidably disposed with the sliding rail 1301 is fixedly disposed on the moving plate 1302, and the moving plate 1302 can slide on the sliding rail 1301 after being forced by the sliding block 1303. In order to drive the movable plate 1302 to slide on the slide rail 1301, a third stepping motor 1305 is mounted on the bottom of the support plate 12 through a mounting plate 1306, a first screw 1307 is provided on an output shaft of the third stepping motor 1305, and an end portion of the first screw 1307 is rotatably provided to a first mounting block 1308 fixedly provided on the support plate 12 so as to support the first screw 1307 by the first mounting block 1308. Secondly, a bump 1304 is arranged at the bottom of the moving plate 1302, and the bump 1304 passes through the supporting plate 12 to be in threaded connection with the first screw 1307; when the third stepper motor 1305 is started, the first screw 1307 is driven to rotate in a forward and reverse direction, the moving plate 1302 is driven to slide back and forth on the sliding rail 1301 under the action of the bump 1304, and the moving plate 1302 moves back and forth together with the height control mechanism 14 and the nozzle assembly 15.

As shown in fig. 8-10, the height control mechanism 14 includes a guide post 1401 fixedly disposed on the moving plate 1302 and vertically disposed, wherein a sliding seat 1402 is slidably disposed on the guide post 1401, and a mounting seat 1403 for mounting the nozzle assembly 15 on the sliding seat 1402 is disposed on the sliding seat 1402, so that the nozzle assembly 15 can be moved up and down together when the sliding seat 1402 moves up and down on the guide post 1401. However, in order to enable the sliding seat 1402 to automatically move up and down on the guide post 1401, a fourth stepping motor 1405 with an output shaft arranged upward is further installed on the moving plate 1302, and a second screw rod 1406 is provided on the output shaft, and an end of the second screw rod 1406 is rotatably provided with a second installation block 1407 fixedly provided on the top end of the guide post 1401, so as to support the second screw rod 1406 under the action of the second installation block 1407; and a fixed plate 1404 is arranged on the sliding seat 1402, the fixed plate 1404 is in threaded connection with the second screw rod 1406, when the fourth stepper motor 1405 is started, the second screw rod 1406 is driven to rotate in a forward and reverse direction, and under the action of the fixed plate 1404, the sliding seat 1402 is driven to move up and down on the guide post 1401, and the sliding seat 1402 drives the spray pipe assembly 15 to move up and down.

As shown in fig. 8-10, the nozzle assembly 15 includes a conduit 1502 for communicating with an air supply system, and the conduit 1502 is fixedly disposed with a first fixing seat 1501 mounted on a mounting seat 1403, wherein a nozzle 1503 disposed along a length direction of a support plate 12 is disposed on the conduit 1502, and a nozzle 1504 is disposed on an end portion of the nozzle 1503. Under the cooperation of the mechanisms, the spray pipe 1503 is controlled to move up and down, left and right and front and back freely, the spray head 1504 extends into the engine fire-spraying pipe, nitrogen is sprayed after aligning with the throat part of the engine fire-spraying pipe, and fire-extinguishing treatment is performed.

As shown in fig. 3, the stop mechanism 16 includes an electric push rod 1602 fixedly disposed on the base plate 1 through a second fixing base 1601, and a telescopic rod of the electric push rod 1602 faces the rotating rod 2, wherein a cylindrical stop piece 1604 is disposed on the rotating rod 2, and a surface of the stop piece 1604 is a rough surface; a stopper piece 1603 for contacting the stopper 1604 is fixed to the telescopic rod end of the electric push rod 1602. After the gear motor 5 drives the base plate 1 to a specified position on the guide rail, the electric push rod 1602 is started, and the telescopic rod is extended to push the stopper 1603 into contact with the surface of the stopper 1604, and the rotating rod 2 is caught under the cooperation of the stopper 1603 and the stopper 1604, so that the base plate 1 can be stably placed at the specified position on the guide rail.

In view of the above, the present invention has the above-mentioned excellent characteristics, so that it can be used to improve the performance and practicality of the prior art, and is a product with great practical value.

The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.

Claims

1. An automatic fire extinguishing device of a high-modulus rocket engine is characterized in that: the device comprises a bottom plate (1) and a pair of moving parts arranged on the bottom plate (1), wherein the moving parts comprise a rotating rod (2) and a pair of fixed blocks (3) which are fixedly arranged on the bottom plate (1) along the width direction of the bottom plate (1), the rotating rod (2) is rotatably arranged on the fixed blocks (3), and moving wheels (4) are respectively arranged at two ends of the rotating rod (2); a speed reducing motor (5) is further arranged on the bottom plate (1), a first gear (6) is arranged on an output shaft of the speed reducing motor (5), and a second gear (7) meshed with the first gear (6) is arranged on the rotating rod (2);

a rotating plate (9) is arranged above the bottom plate (1), and the rotating plate (9) is connected with the bottom plate (1) through a rotating mechanism (10) so as to enable the rotating plate (9) to horizontally rotate on the bottom plate (1); a supporting plate (12) is arranged above the rotating plate (9), and the supporting plate (12) is connected with the rotating plate (9) through an adjusting mechanism (11) so as to adjust the angle between the supporting plate (12) and the rotating plate (9); a translation mechanism (13) is arranged on the supporting plate (12), a height control mechanism (14) is arranged on the translation mechanism (13), a spray pipe assembly (15) for extinguishing fire is arranged on the height control mechanism (14), the translation mechanism (13) is used for driving the spray pipe assembly (15) to translate, and the height control mechanism (14) is used for driving the spray pipe assembly (15) to move up and down;

the base plate (1) is also provided with a stop mechanism (16) for clamping the rotating rod (2) so as to enable the base plate (1) to be positioned at a designated position.

2. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 1, wherein: the rotating mechanism (10) comprises a supporting seat (1001) fixedly arranged on the bottom plate (1), a rotating seat (1002) is fixedly arranged at the bottom of the rotating plate (9), and the rotating seat (1002) is rotationally arranged on the supporting seat (1001); a first worm wheel (1005) is arranged on the outer side of the circumference of the rotating seat (1002), a first stepping motor (1003) is arranged on the bottom plate (1) through a mounting shell (1006), a first worm (1004) is arranged on an output shaft of the first stepping motor (1003), and the first worm (1004) is meshed with the first worm wheel (1005).

3. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 2, wherein: the bottom plate (1) is also provided with a protecting shell (1007) for protecting the first worm wheel (1005).

4. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 1, wherein: the adjusting mechanism (11) comprises a movable frame (1104) and a pair of support bearings (1101) fixedly arranged on the rotating plate (9), a rotating shaft (1102) is rotatably arranged on the support bearings (1101), and the axial direction of the rotating shaft (1102) is consistent with the width direction of the rotating plate (9); the two ends of the rotating shaft (1102) are fixedly provided with fixing pieces (1103), a pair of movable frames (1104) are arranged along the length direction of the rotating plate (9) and are fixedly connected with different fixing pieces (1103) respectively, and the supporting plate (12) is arranged above the movable frames (1104) and is fixedly arranged with the movable frames; the rotating plate (9) is also provided with a push-pull component for applying force to the movable frame (1104).

5. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 4, wherein: the push-pull component comprises a rotating frame (1107) and a fixed frame (1106) fixedly arranged on the rotating plate (9), one end of the rotating frame (1107) is provided with a connecting shaft, the other end of the rotating frame is provided with a pair of rotatable pulleys (1108), and the connecting shaft is rotationally arranged on the fixed frame (1106); a pair of pulleys (1108) on the rotating frame (1107) are respectively arranged in the sliding grooves of different sliding groove rods (1105), and the sliding grooves on the sliding groove rods (1105) are long; the end part of the connecting shaft is provided with a second worm wheel (1111), the rotating plate (9) is provided with a second stepping motor (1109), the output shaft of the second stepping motor (1109) is provided with a second worm (1110), and the second worm (1110) is meshed with the second worm wheel (1111).

6. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 4, wherein: a limiting block (1112) used for being in contact with the rotating plate (9) is arranged on one side, close to the supporting bearing (1101), of the supporting plate (12) so as to limit the supporting plate (12).

7. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 1, wherein: the translation mechanism (13) comprises a sliding rail (1301) fixedly arranged on the supporting plate (12) and a moving plate (1302) arranged above the supporting plate (12), the sliding rail (1301) is arranged along the length direction of the supporting plate (12), and a sliding block (1303) which is arranged in a sliding manner with the sliding rail (1301) is fixedly arranged on the moving plate (1302); a third stepping motor (1305) is arranged at the bottom of the supporting plate (12) through a mounting plate (1306), a first screw rod (1307) is arranged on an output shaft of the third stepping motor (1305), the end part of the first screw rod (1307) is rotatably arranged with a first mounting block (1308) fixedly arranged on the supporting plate (12), a protruding block (1304) is arranged at the bottom of the moving plate (1302), and the protruding block (1304) penetrates through the supporting plate (12) to be in threaded connection with the first screw rod (1307).

8. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 7, wherein: the height control mechanism (14) comprises a guide column (1401) fixedly arranged on the moving plate (1302) and vertically arranged, a sliding seat (1402) is slidably arranged on the guide column (1401), and a mounting seat (1403) for mounting the spray pipe assembly (15) on the sliding seat (1402) is arranged on the sliding seat (1402); the movable plate (1302) is further provided with a fourth stepping motor (1405) with an upward arranged output shaft, the output shaft is provided with a second screw rod (1406), the end of the second screw rod (1406) is rotatably arranged with a second mounting block (1407) fixedly arranged on the top end of the guide column (1401), the sliding seat (1402) is provided with a fixed plate (1404), and the fixed plate (1404) is in threaded connection with the second screw rod (1406).

9. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 8, wherein: the spray pipe assembly (15) comprises a guide pipe (1502) for guiding air, the guide pipe (1502) is fixedly arranged with a first fixing seat (1501) arranged on a mounting seat (1403), the guide pipe (1502) is provided with a spray pipe (1503) arranged along the length direction of a supporting plate (12), and the end part of the spray pipe (1503) is provided with a spray head (1504).

10. A high modulus rocket engine automatic fire extinguishing apparatus according to claim 1, wherein: the stop mechanism (16) comprises an electric push rod (1602) fixedly arranged on the bottom plate (1) through a second fixing seat (1601), a telescopic rod of the electric push rod (1602) faces to the rotary rod (2), a cylindrical stop piece (1604) is arranged on the rotary rod (2), and the surface of the stop piece (1604) is a rough surface; a stop piece (1603) for contacting with the stop piece (1604) is fixedly arranged on the end part of the telescopic rod of the electric push rod (1602).