CN110595294A - A rocket thermal insulation protection device for extremely cold regions - Google Patents

Abstract

The invention discloses a rocket thermal insulation protection device and method that can be quickly withdrawn. Opening and closing function; the power device provides power for the retraction of the truss tube; the slide rail is an I-shaped steel rail fixed on the bottom surface, the slide rail not only facilitates the retraction of the truss tube, but also realizes the pull-out resistance of the truss tube through the pulley device Therefore, the stability of the truss tube under wind load is realized; the construction speed of the protective device of the present invention is fast, and the rocket assembly in extremely cold weather can be completed quickly; the rapid removal can be realized, and the rocket launch preparation time can be shortened.

Description

A rocket thermal insulation protection device for extremely cold regions

technical field

The invention relates to an independent rocket thermal insulation protection device and method, in particular to a rocket thermal insulation protection device and method that can be quickly withdrawn for use in extremely cold regions.

Background technique

A rocket is a complex system that integrates nearly a thousand sets of single machines and thousands of large and small parts, which involves some composite materials, especially rubber materials for sealing, such as shock absorbers in the rocket fairing, airtight tanks and tubes. The seals in the road may seem like small parts, but they have a crucial impact on the overall performance of the rocket. These components and materials are often sensitive to low temperature, and are prone to damage and failure under extremely cold conditions. When the external temperature is extremely low, a special thermal protection device needs to be set up to ensure that the temperature of the micro-environment in which the rocket is located is not too low. Respond promptly. Vehicle-mounted missiles are often equipped with erector launchers (Wang Huayu, Research on Erecter Launcher Safety Protection System [D], 2017, Wuhan University of Technology), and its safety protection system mainly includes monitoring systems and process protection devices, protection beams, protection longitudinal beams, The luffing cylinders together form a protective device. The missile launcher plays the role of supporting the missile and meets the preparation conditions before its launch, so that it can achieve aiming accuracy and correctly assist the missile to take off, but it does not have the function of thermal protection. At present, the rocket thermal insulation device that achieves thermal insulation effect has not been retrieved, and this field is still blank.

SUMMARY OF THE INVENTION

Aiming at the needs of rocket thermal insulation protection in extremely cold regions, the invention proposes a rocket thermal insulation protection device and method that can be quickly withdrawn to fill the gap. The key technical problems to be solved are:

1) The material of the thermal insulation layer needs to have air tightness, flame retardancy and other characteristics, and maintain stable performance under extreme low temperature conditions;

2) Heating measures are required to ensure that when the external ambient temperature is relatively low, the ambient temperature in the insulation device can be maintained at a high level;

3) The thermal protection device needs to have considerable strength and rigidity to resist external wind loads during the closing and retracting process;

4) It can be quickly withdrawn without affecting the rocket launch.

In order to solve the above technical problems, the present invention designs a rocket thermal insulation protection device that can be quickly withdrawn, including an openable and closable truss cylinder, a power device, a slide rail and a heating and heat preservation device; A hinge and an opening are provided to realize the opening and closing function of the truss cylinder, and a pulley device is provided at the bottom of the openable and closed truss cylinder; the power device provides power for the withdrawal and retraction of the truss cylinder; the sliding rail is an I-shaped fixed on the bottom surface. In addition to providing convenience for the withdrawal and retraction of the truss cylinder, the sliding rail can also cooperate with the pulley device to realize the pull-out resistance of the truss cylinder, thereby realizing the stability of the truss cylinder under wind load.

The openable and closable truss tube is formed by welding an I-beam column and an angle steel connecting piece, and the rotation of the truss tube is realized by welding lugs at the web positions of the two upright columns and connecting them with hinges. Rubber materials are attached to the two uprights at the opening of the truss cylinder to ensure the tightness of the cylinder and reduce heat dissipation.

The opening and closing power of the truss cylinder can be realized by hydromechanical transmission, motor or cable pulling to drive the bottom pulley to roll. Due to the high center of gravity of the truss tube, there is greater instability in the process of opening, closing and retracting. In order to ensure the safety, reliability and speed of its opening, closing and retracting process, the power device preferably uses a combination of hydraulic arm and mechanical transmission device to provide power for the retraction of the truss cylinder; the hydraulic arm is realized by a "scissor twist" type member The opening and closing of the truss.

The heat-generating and heat-insulating device includes the truss outer membrane material, the heat-insulating material and/or the heat-generating device, which are used for windproof, heat preservation and heat generation. The truss outer membrane material is ethylene-tetrafluoroethylene copolymer (ETFE) film, the thermal insulation material is thermal insulation coating or thermal insulation filler, and the thermal insulation filler is aerosol thermal insulation felt, phenolic foam, expanded vitrified In one or more of the microbeads, the heating device is a heating blanket, and a thermal insulation material is arranged between the film material and the heating device. In addition, a ventilation duct can be arranged in the cylinder wall, and a blower connected to the ventilation duct can be arranged at the bottom of the launch pad as a heating device.

There is a "scissors twist" type connecting device in the middle of the truss cylinder, which can drive the opening and closing of the overall structure through the expansion and contraction of the hydraulic arm. The truss structure is opened, and then the second hydraulic arm shrinks and pulls the whole truss structure to move outward, and the structure can be withdrawn.

The truss cylinder can be divided into two semi-cylinders, and pulley devices are respectively set at the hinge column, the semi-circle midpoint column and the bottom of the column at the opening position. A total of 5 pulley devices and 5 slide rails are used, and the pulley device is a rotating pulley. During the opening process, the first hydraulic arm shrinks to generate a rotational torque, so that the pulley slides along the arc-shaped slide rail, and the two semi-cylindrical trusses are respectively driven by the rotating pulley to rotate to the straight rail; then, driven by the second hydraulic arm, the truss The barrel moves as a whole and moves away from the main body of the rocket, thereby completing the withdrawal of the truss barrel.

Preferably, the truss tube is divided into 3 parts to form a semi-circular truss and two 1/4 circular trusses. There are pulley devices and truss cylinders, a total of 5 pulley devices are used, of which 3 pulleys located on the straight rail can use fixed pulleys, and the other two use rotating pulleys. By adding "track steering device", only 3 The opening and retracting of the track can be completed by the opening and closing of the track. During the opening process, the bottom of the semi-circular truss is fixed, as the focus point of the other two 1/4-circle trusses. When the track slides, after the 1/4 round truss rotates 45°, the pulley reaches the position of the slide rail rotating device. The rotation of the motor of the track steering device drives the pulley to turn to the straight rail through the sliding rail, thereby realizing the change of the sliding direction, and then the hydraulic arm is extended along the straight rail direction, and the truss cylinder is moved as a whole through the transmission arm, away from the main body of the rocket, thus completing the truss Withdrawal of the barrel.

The truss cylinder is connected with the guide rail through the lower pulley set of the column to realize the pull-out resistance of the truss cylinder. Its specific structure is as follows: the I-shaped track is fixed on the concrete slab by the buckle, and the main wheel slides along the track during the opening and retracting process. Two pulley pulleys are arranged in the track to offset the vertical tension caused by the lateral force during the movement of a part of the truss to ensure the stability of the structure, and the upper part is provided with a bearing, so that the steering of the pulley can be realized. The main wheel bears the self-weight and pressure of the truss main body, and the two pulley pulleys can provide pullout resistance under wind load for the truss tube.

The equipment is in a closed state for a long time, and the withdrawal hydraulic arm will be in an open state for a long time in this scheme. The long-term exposure of the hydraulic arm will cause damage to it and reduce its reliability, so the transmission arm, support truss and diagonal braces are added to the hydraulic arm. Thus, the hydraulic arm can be extended to drive the whole truss to withdraw.

The beneficial effects of the invention are: a) the construction speed of the truss tube structure is fast, and the rocket assembly under extremely cold weather can be quickly completed; b) the rapid removal can be realized, and the rocket launch preparation time can be shortened.

Description of drawings

FIG. 1 is a schematic diagram of the main structure and mechanical transmission of the present invention.

Figure 2 is a schematic diagram of the withdrawal process of the present invention.

Figure 3 is a schematic diagram of the pulley at the bottom of the truss cylinder of the present invention.

FIG. 4 is a schematic diagram of the guide rail rotating device of the present invention.

Figure 5 is a schematic diagram of the hinge between the columns of the present invention.

FIG. 6 is a layout diagram of the thermal insulation and heating facilities of the present invention.

In the drawings, the same drawing numbers are used to represent the same elements or structures, wherein: 1-truss barrel, 2-supporting truss, 3-slide rail, 4-hydraulic arm, 5-transmission arm, 6-reinforced connecting beam , 7-track steering device, 8-column hinge, 9-rotating bearing, 10-main pulley, 11-pulling pulley, 12-rail fastening device, 13-concrete floor, 14-diagonal brace, 15-heating blanket , 16 - thermal insulation material, 17 - windproof membrane material, 18 - rocket.

Detailed ways

Example 1:

A rocket thermal insulation protection device that can be quickly withdrawn includes an openable and closable truss tube, a power device, a slide rail and a heat-generating thermal insulation device; The bottom of the truss tube can be opened and closed with a pulley device; the power device provides power for the withdrawal of the truss tube; the slide rail is an I-shaped steel rail fixed on the bottom surface, and the slide rail not only facilitates the withdrawal of the truss tube, but also The pull-out resistance of the truss cylinder can be achieved by cooperating with the pulley device, thereby realizing the stability of the truss cylinder under wind load.

The main body of the truss cylinder is two cylindrical trusses with semicircular cross-sections welded by I-shaped columns and angle steel, and pulleys are provided at the hinge column, the semicircle midpoint column and the column bottom at the opening position. In the middle of the truss tube, there is a "scissor twist" type connecting device, which can drive the opening and closing of the whole structure through the expansion and contraction of the hydraulic arm. When the rocket needs to be launched, first the extension of the first hydraulic arm will open the truss structure through the "scissor twist" type transmission device, and then the second hydraulic arm will shrink and pull the whole truss structure to move outwards, and the withdrawal of the structure can be completed. A total of 5 tracks are laid for the opening and closing and retraction of the truss tube. The pulleys are all rotating pulleys. During the opening process, the track of the pulleys is two concentric circles, and then turns from a curve to a straight line. The rotatable pulley at the bottom of the truss cylinder is shown in Figure 3. The I-shaped track is fixed on the concrete bottom plate 13 through the buckle 12. During the opening and withdrawal process, the main pulley 10 slides along the track, and two pulleys are arranged in the I-shaped track. 11, in order to offset the vertical tension caused by the lateral force during the movement of a part of the truss to ensure the stability of the structure. A bearing 9 is provided on the upper part of the main wheel 10, so that the steering of the pulley can be realized. FIG. 5 is a schematic diagram of the hinge 8 between the columns. In order to realize the rotation of the truss, double columns are set in the rotating position, and the lugs are welded between the two columns and the rotation axis is added. Figure 6 shows the layout of insulation and heating facilities. In order to realize the function of wind resistance and heat preservation, wind resistance film material is laid on the outer surface of the truss cylinder to ensure the internal sealing. The heating blanket is suspended from the measuring cylinder in the truss tube by means of connecting rods to provide heat to ensure the temperature balance around the arrow body. Fill insulation between the windproof membrane and the heating blanket to reduce heat loss.

Example 2:

A quick-retractable rocket thermal insulation protection device, comprising an openable and closable truss cylinder, a power device, a slide rail and a heat-generating thermal insulation device; hinges and openings are arranged on the facade of the openable and closable truss cylinder, so as to realize the truss cylinder The opening and closing function of the truss tube can be opened and closed, and a pulley device is provided at the bottom of the truss tube; the power device provides power for the withdrawal and retraction of the truss tube; the slide rail is an I-shaped steel rail fixed on the bottom surface. In addition to providing convenience for retraction, the pulley can be pulled out by cooperating with the pulley device, thereby realizing the stability of the truss can under wind load.

The truss tube is divided into 3 parts as shown in Figure 2, forming a semi-circular truss and two 1/4-circle trusses. Each part of the truss can be "focusing points" for each other to achieve symmetrical opening and closing, and it is not easy to be stuck. live. There are pulley devices at the midpoint column of the semi-circular truss, two 1/4-circle truss hinge columns and the bottom of the column at the opening position. There are 5 pulley devices in the truss tube, of which 3 pulleys on the straight rail are fixed. The pulley can be connected. By adding a "track steering device", the opening and retracting of the track can be completed only by laying 3 tracks. During the opening process of the truss tube, the bottom of the "semi-circular" truss is fixed as the other two 1/ 4. At the focus point of the circular truss, the first hydraulic arms on both sides can be retracted at the same time, generating a turning moment to make the pulley slide along the arc-shaped track. Fast opening of the truss tube. In the track steering device, the rotation of the motor drives the slide rail to rotate, and the track drives the pulley to turn, thereby realizing the change of the sliding direction, and it is not easy to get stuck. The motor rotation of the track steering device drives the pulley to turn to the straight rail through the sliding rail; The second hydraulic arm is extended, and the truss canister is moved as a whole through the transmission arm and away from the main body of the rocket, thereby completing the retraction of the truss canister.

It can be seen from Figure 4 that by adding a "track steering device", in the track steering device, the rotation of the motor drives the slide rail to rotate, and the track drives the pulley to turn, thereby realizing the change of the sliding direction, so that only 3 tracks are required to be laid. Opening and withdrawal of tracks. The rotation of the motor of the track steering device drives the pulley to turn to the straight track through the slide rail. The hydraulic arm is extended along the direction of the straight rail, and the truss cylinder is moved as a whole through the transmission arm, and is away from the main body of the rocket, thus completing the withdrawal and retraction of the truss cylinder. Figure 3 is a schematic diagram of the rotatable pulley at the bottom of the truss cylinder, the I-shaped track is fixed on the concrete slab by the buckle, and the main wheel slides along the track during the opening and retracting process. Two pulley pulleys are arranged in the I-shaped track to offset the vertical tension caused by the lateral force during the movement of a part of the truss to ensure the stability of the structure. Bearings are arranged on the upper part of the main wheel, so that the steering of the pulley can be realized. Figure 5 is a schematic diagram of the hinge between the columns. In order to realize the rotation of the truss, double columns are set in the rotating position, and the lugs are welded between the two columns and the rotation axis is added. Figure 6 shows the layout of the insulation and heating facilities. In order to realize the function of wind resistance and heat preservation, wind resistance film material is laid on the outer surface of the truss cylinder to ensure the internal sealing. The heating blanket is suspended from the measuring cylinder in the truss tube by means of connecting rods to provide heat to ensure the temperature balance around the arrow body. Fill insulation between the windproof membrane and the heating blanket to reduce heat loss. Rubber material is attached to the two columns at the opening of the truss cylinder to ensure the sealing of the cylinder and reduce heat dissipation; the truss cylinder column is connected to the guide rail through the lower pulley of the column, which realizes the pull-out resistance of the truss cylinder; the hydraulic arm passes the " The "scissors twist" type member realizes the opening and closing of the truss. The equipment is in a closed state for a long time, and the withdrawal hydraulic arm will be in an open state for a long time in this scheme. The long-term exposure of the hydraulic arm will cause damage to it and reduce its reliability, so the transmission arm 5, the supporting truss 2 and the diagonal brace 14 are added. Thus, the hydraulic arm can be extended to drive the whole truss to withdraw.

Furthermore, the foregoing describes only some embodiments, and changes, modifications, additions and/or variations may be made without departing from the scope and spirit of the disclosed embodiments, which are illustrative and not restrictive. Furthermore, the illustrated embodiments relate to what is presently considered to be the most practical and preferred embodiment, it being understood that the embodiments should not be limited to the disclosed embodiments, but rather are intended to cover the spirit and scope included in the embodiments Different modifications and equivalent settings within. Furthermore, the various embodiments described above may be used in conjunction with other embodiments, eg, aspects of one embodiment may be combined with aspects of another embodiment to implement yet another embodiment. Additionally, each individual feature or component of any given assembly may constitute additional embodiments.

The foregoing description of the embodiments has been provided for purposes of illustration and description, and is not intended to be exhaustive or to limit the present disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but where applicable, elements or features are interchangeable and can be used in a selected embodiment, even if not specifically shown or described, and also Can be changed in a number of ways. Such changes are not considered a departure from this disclosure, and all such changes are included within the scope of this disclosure.

Accordingly, it is to be understood that the drawings and description are provided herein by way of example to facilitate an understanding of the present invention and should not be construed to limit its scope.

Claims (10)

1. A rocket thermal insulation protection device that can be quickly withdrawn, comprising an openable and closable truss cylinder, a power device, a slide rail and a heat-generating thermal insulation device; The opening and closing function of the truss cylinder can open and close the bottom of the truss cylinder with a pulley device; the power device provides power for the withdrawal of the truss cylinder; the sliding rail is an I-shaped steel rail fixed on the bottom surface, and the sliding rail is a truss. In addition to the convenience provided by the retraction of the cylinder, the pulley resistance of the truss cylinder can also be achieved by cooperating with the pulley device, thereby realizing the stability of the truss cylinder under wind load. 2 . The device according to claim 1 , wherein the openable and closable truss tube is formed by welding an I-beam column and an angle steel connector, and the rotation of the truss tube is achieved by welding lugs at the web positions of the two columns. 3 . The plates are connected by hinges. Rubber materials are attached to the two columns at the opening of the truss cylinder to ensure the sealing of the cylinder and reduce heat dissipation. The power device is a combination of a hydraulic arm and a mechanical transmission device. The arm realizes the opening and closing of the truss through the "scissors twist" type member. 3. The device according to claim 1, characterized in that: the power device is realized by hydraulic pressure, motor or cable pulling to drive the bottom pulley to roll, and the heat-generating and heat-insulating device comprises a truss outer film material, a heat-insulating material and/or Heater for wind protection, heat retention and heat generation. 4 . The device according to claim 3 , wherein the truss outer membrane material is an ethylene-tetrafluoroethylene copolymer (ETFE) film, the thermal insulation material is thermal insulation coating or thermal insulation filler, and the The thermal insulation filler is one or more of aerosol thermal insulation felt, phenolic foam, and expanded vitrified microbeads, the heating device is a heating blanket, and a thermal insulation material is arranged between the film and the heating device, preferably, in A ventilation duct is arranged in the cylinder wall, and a blower connected with the ventilation duct is arranged at the bottom of the launch pad as a heating device. 5. The device according to claim 2, characterized in that: a "scissors twist" type connecting device is provided in the middle of the truss cylinder, which can drive the opening and closing of the overall structure through the expansion and contraction of the hydraulic arm. When the rocket needs to be launched, first the first The elongation of one hydraulic arm makes the truss structure open through the "scissors twist" type transmission device, and then the second hydraulic arm shrinks and pulls the whole truss structure to move outward, and the withdrawal of the structure can be completed. 6. The device according to any one of claims 1-5, wherein the truss cylinder is divided into 3 parts to form a semicircular truss and two 1/4 circle trusses, at the midpoint of the semicircular truss The column, the two 1/4 circle truss hinge columns and the bottom of the column at the opening position are respectively provided with multiple pulley devices, and also includes a track steering device. During the opening process, the bottom of the semicircular truss is fixed as the other two 1/4 circle At the focus point of the truss, the first hydraulic arms on both sides contract to generate a rotational moment, so that the pulley slides along the arc-shaped slide rail. After the 1/4 circular truss rotates by 45°, the pulley reaches the position of the track steering device; the motor of the track steering device rotates through the The sliding rail drives the pulley to turn to the straight rail, thereby realizing the change of the sliding direction; the second hydraulic arm along the straight rail direction is extended, and the truss cylinder is moved as a whole through the transmission arm and away from the main body of the rocket, thereby completing the withdrawal and retraction of the truss cylinder. 7. The device according to claim 6 is characterized in that: a total of 5 pulley devices are used, which are respectively set at the midpoint column of the semicircular truss, the hinge columns of two 1/4 circular trusses and the two column bottoms of the opening position. There is a pulley arrangement, 3 of which are on the straight rails using fixed pulleys and the other 2 using rotating pulleys. 8. The device according to any one of claims 1-5, characterized in that: the truss cylinder is divided into two semi-cylinders, and pulley devices are respectively provided at the hinge column, the semicircle midpoint column and the bottom of the column at the opening position, A total of 5 pulley devices and 5 slide rails are used. The pulley devices are all rotating pulleys. During the opening process, the first hydraulic arm shrinks to generate a rotating torque, so that the pulleys slide along the arc-shaped slide rails. The two semi-cylindrical trusses are respectively Driven by the rotating pulley, it rotates to the straight rail; then, driven by the second hydraulic arm, the truss cylinder moves as a whole and moves away from the main body of the rocket, thereby completing the withdrawal and retraction of the truss cylinder. 9. The device according to claim 1-5, characterized in that: the truss tube is connected with the guide rail through the lower pulley set of the column, so as to realize the pull-out resistance of the truss tube, and its specific structure is: the I-shaped track is fixed on the concrete slab by a buckle In the process of opening and retracting, the main wheel slides along the slide rail, and two anti-pull pulleys are set in the I-shaped rail to offset the vertical tension caused by the lateral force during the movement of a part of the truss to ensure the stability of the structure, and the upper part is provided with bearings , so that the steering of the pulley can be realized. The main pulley bears the weight and pressure of the main body of the truss, and the two pulleys can provide the pulley against the pulley under the wind load. Since the withdrawal hydraulic arm will be in the open state for a long time, at the hydraulic arm The transmission arm, the supporting truss and the diagonal brace are arranged, so that the hydraulic arm can be extended to drive the whole truss to withdraw. 10. A method of using the device of any one of claims 1 to 9, when the rocket needs to be launched, the extension of the first hydraulic arm causes the truss structure to open through the "scissor twist" type transmission, and then the second hydraulic arm The retraction pulls the overall truss structure to move outwards to complete the withdrawal of the structure.