CN114923375B - Carrier rocket connector pulling-out device - Google Patents
Carrier rocket connector pulling-out device Download PDFInfo
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- CN114923375B CN114923375B CN202210505093.8A CN202210505093A CN114923375B CN 114923375 B CN114923375 B CN 114923375B CN 202210505093 A CN202210505093 A CN 202210505093A CN 114923375 B CN114923375 B CN 114923375B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention provides a carrier rocket connector pull-off device. The device at least comprises an installation base, a passive pull-out mechanism, an active pull-out mechanism and a guide mechanism; the passive pull-out mechanism is arranged at the top of the installation foundation, the active pull-out mechanism is arranged on one side of the passive pull-out mechanism, the guide mechanism is arranged on the other side of the passive pull-out mechanism, and the guide mechanism is used for guiding the pull-out action of the steel wire rope in the passive pull-out mechanism and ensuring that the steel wire rope is always tangentially led out; the active pull-out mechanism and the passive pull-out mechanism are both used for unlocking the connector and the arrow upper interface by pulling the steel wire rope, and the active pull-out mechanism and the passive pull-out mechanism are arranged in a redundant manner.
Description
Technical Field
The invention relates to the technical field of space carrier rockets, in particular to a carrier rocket connector pull-off device.
Background
The connector is used for connecting ground pipelines such as filling, air supply, power supply and ventilation and the like with an upper interface of the rocket body, and is used for completing functions of propellant filling, discharging, exhausting, air supply, power supply and the like of the rocket. After the connector completes the functions, the connector can reliably fall off from the rocket body, and the falling fault directly causes the launching of the rocket to be stopped, so that the connector has higher requirements on the falling reliability of the gas-liquid connector.
The 'three-horizontal' mode is a rocket test and launching mode of horizontal assembly, horizontal test, horizontal transportation and vertical launching from the last to the launching pad.
The low-temperature liquid rocket launched in a 'three-horizontal' mode is generally provided with a device for filling, supplying gas, supplying power, fixing pipelines and pulling out a connector on a vertical bracket. The fixed pipeline on the erecting bracket is connected with the connector on the arrow through an umbilical hose (line) and an air-liquid connector.
Based on the characteristics of the low-temperature propellant and the requirements of rocket test launching, the gas-liquid connector is usually required to be normally operated before the rocket takes off or after the rocket takes off by ignition.
Therefore, it is desirable to provide a connector detaching device that can reliably pull out a connector while accommodating a change in length of a rocket due to the launching or erecting of a rocket and the avoidance of the rocket.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a carrier rocket connector pull-off device which can adapt to the distance change after launching and taking off of a rocket and adapt to the working angles on all working planes until the connector is pulled off. The device integrates an active pull-out function and a passive pull-out function, and the active pull-out mechanism and the passive pull-out mechanism are arranged in a redundant manner and mutually ensure, so that one device can meet two drop requirements of the rocket connector.
The invention provides a carrier rocket connector pull-off device, which at least comprises: the installation foundation, the passive pull-out mechanism, the active pull-out mechanism and the guide mechanism are installed; the passive pull-out mechanism is arranged at the top of the installation foundation, the active pull-out mechanism is arranged on one side of the passive pull-out mechanism, the guide mechanism is arranged on the other side of the passive pull-out mechanism, and the guide mechanism is used for guiding the pull-out action of the steel wire rope in the passive pull-out mechanism; the guide mechanism includes: the first follower and the second follower are arranged on the passive pull-out mechanism, the guide rod and the guide slide block are arranged on the passive pull-out mechanism; one end of the guide rod is connected with the first follower, and the other end of the guide rod penetrates through the guide sliding block and then is connected with the second follower; according to the change of the pitch angle rope-discharging angle of the steel wire rope, the first follower and the second follower can swing along with the steel wire rope in the first direction, so that the pitch angle rope-discharging angle of the steel wire rope is reduced, and the steel wire rope is ensured to be discharged tangentially all the time; the guide sliding block is provided with a guide hole for the steel wire rope to pass through; one end of the steel wire rope is wound on the passive pull-out mechanism, and the other end of the steel wire rope penetrates through the guide hole of the guide sliding block and then is connected with the connector; the guide sliding block is used for driving the steel wire rope to move along the guide rod, so that the steel wire rope adapts to a working angle in a second direction, and the steel wire rope is ensured to be always tangentially led out; the active pull-out mechanism and the passive pull-out mechanism are both used for unlocking the connector and the arrow upper interface by pulling the steel wire rope, and the active pull-out mechanism and the passive pull-out mechanism are arranged in a redundant manner.
In one embodiment, the mounting base comprises a base, a bottom plate, a back plate, a front bracket and a rear bracket; the lower end face of the bottom plate is arranged on the base, the front support and the rear support are oppositely arranged on two sides of the upper end face of the bottom plate, and the back plate is arranged on the third side of the upper end face of the bottom plate and is simultaneously connected with the front support and the rear support to form a frame; the passive pull-out mechanism is arranged in the frame, one end of the passive pull-out mechanism is arranged on the front support, the other end of the passive pull-out mechanism is arranged on the rear support, and the active pull-out mechanism is arranged on one side, far away from the passive pull-out mechanism, of the back plate.
In one embodiment, the passive pull-off mechanism comprises: the rope winding drum, the rope pressing roller, the rotating shaft and the hand wheel; two ends of the rotating shaft respectively penetrate through the center positions of the front bracket and the rear bracket, and the hand wheel is arranged on the outer side of the front bracket and is coaxial with the rotating shaft; the rope winding drum is arranged outside the rotating shaft through a bearing and a volute spiral spring; the spiral spring can keep the steel wire rope in a stretched state when the steel wire rope stretches; the hand wheel is used for driving the rope drum to synchronously rotate along with the rotating shaft, so that the steel wire rope is wound on the rope drum; and two ends of the rope pressing roller are respectively connected with the top of the front support and the top of the rear support and are used for pressing and winding the steel wire rope arranged on the rope winding drum.
In one embodiment, the first follower is a follower frame sleeved on the rotating shaft close to the outer side of the rear bracket; the second follower includes: the pitch angle rolling wheel is connected with the fixed plate; two guide rods are arranged in parallel; one end of each guide rod is arranged on the fixed plate, and the other end of each guide rod is connected with one end of the follow-up frame far away from the rotating shaft; the outer side of the front support is provided with a cylindrical guide surface matched with the pitch angle roller, and the cylindrical guide surface is arranged on the outer side of the front support in an extending manner so as to enable the pitch angle roller to roll back and forth along the cylindrical guide surface in the first direction; the pitch angle roller is in line contact with the inner surface of the cylindrical guide surface; when the steel wire rope is led out along the pitch angle, the pitch angle roller can roll along the cylindrical guide surface of the front support, and the follow-up frame can rotate along the rotating shaft, so that the guide rod is driven to swing along the first direction, and the steel wire rope arranged on the guide sliding block is led out along the tangential direction of the rope winding drum all the time.
In one embodiment, the guide slide block comprises a first half slide block, a second half slide block and a roller assembly; the roller assembly is arranged between the first half sliding block and the second half sliding block; grooves are respectively arranged at the middle positions of the butt joint sides of the first half sliding block and the second half sliding block; the roller assembly includes: the transverse rollers are arranged in the two grooves, and the two vertical rollers are arranged between the first half sliding block and the second half sliding block; one vertical roller is arranged at the upper part of one side, in which the first half sliding block and the second half sliding block are butted, of the first half sliding block and the second half sliding block, and the other vertical roller is arranged at the lower part of one side, in which the first half sliding block and the second half sliding block are butted, of the first half sliding block and the second half sliding block are butted; the two transverse rollers are arranged at intervals, and the two vertical rollers are also arranged at intervals; the guide holes are formed at intervals between the two transverse rollers and the two vertical rollers.
In one embodiment, each of the transverse rollers is rotatably disposed in the groove through a roller shaft; each vertical roller is rotatably arranged between the first half sliding block and the second half sliding block through a roller shaft.
In the above embodiment, the active pull-off mechanism includes: the device comprises a bracket, a cylinder, a push-pull flexible shaft and a steel wire rope; the bracket is arranged on the back plate, and the air cylinder is arranged on the bracket; one end of the cylinder is connected with the push-pull flexible shaft by a piston rod, and the other end of the push-pull flexible shaft is used for being connected with a steel wire rope fixedly arranged on the connector; the cylinder is driven, so that the piston rod drives the push-pull flexible shaft to be recovered, and the steel wire rope is further pulled to unlock the connector and the arrow upper interface.
In one embodiment, the cylinder includes: the cylinder body is arranged on the support, and the air supply pipe and the electromagnetic valve are arranged on the cylinder body; the piston rod is arranged at one end of the cylinder body, one end of the air supply pipe is communicated with one side of the cylinder body close to the piston rod, and the other end of the air supply pipe is connected with the electromagnetic valve; the cylinder body is communicated with the atmosphere through the air supply pipe and the electromagnetic valve; when the electromagnetic valve is electrified, the air can be supplied to the cylinder body, the piston rod is driven to act and drive the push-pull flexible shaft to be recovered, and then the steel wire rope is pulled to unlock the connector.
In one embodiment, one end of the push-pull flexible shaft is connected with the piston rod through an adapter, and the other end of the push-pull flexible shaft is connected with a steel wire rope through a steel wire rope connecting piece; the circumferential outer sides of the piston rod and the adapter are provided with first flexible shaft supporting cylinders, and the circumferential outer side of the steel wire rope connecting piece is provided with a second flexible shaft supporting cylinder; the first flexible shaft supporting cylinder and the second flexible shaft supporting cylinder wrap part of the push-pull flexible shaft so as to facilitate the force of the two ends of the push-pull flexible shaft after being stretched; the first flexible shaft supporting cylinder is connected to the support through a flange structure, and the second flexible shaft supporting cylinder is connected with the connector through a flange structure.
In one embodiment, the push-pull flexible shaft comprises a mandrel and a sheath wrapped outside the mandrel; two ends of the mandrel are respectively connected with the adaptor and the steel wire rope connecting piece, and two ends of the sheath are respectively connected with the first flexible shaft supporting cylinder and the second flexible shaft supporting cylinder; a first waist-shaped hole is formed in the position, corresponding to the adaptor, of the first flexible shaft supporting cylinder, so that the adaptor can be connected through the first waist-shaped hole; and a second waist-shaped hole is formed in the position, corresponding to the steel wire rope connecting piece, of the second flexible shaft supporting cylinder, so that the steel wire rope connecting piece can be connected through the second waist-shaped hole.
The carrier rocket connector pull-off device provided by the embodiment of the invention at least has the following advantages:
1. the invention integrates the active pull-off mechanism and the passive pull-off mechanism into a whole, and mutually provides redundant backup, thereby thoroughly eliminating the problem of rocket launching delay or delay caused by the failure of the connector drop-off equipment and simultaneously improving the reliability of the pull-off unlocking of the connector.
2. With the change of the rising height of the rocket after ignition, the rope outlet angle and the rope outlet position of the steel wire rope are changed, the guide mechanism provided by the embodiment of the invention can adjust the rope outlet angle of the steel wire rope in the first direction (the winding direction of the steel wire rope) and the second direction (the axial direction of the guide rod) at the same time, and can provide guiding and promoting effects for the rope outlet of the steel wire rope by utilizing the roller, so that the steel wire rope can be ensured to be smoothly discharged and the tangential rope outlet is always kept, and the connector pull-off device provided by the embodiment of the invention can adapt to the working angle on each working plane.
Those skilled in the art will recognize additional features and advantages upon reading the detailed description, and upon viewing the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a launch vehicle connector pull-off device according to an embodiment of the invention.
Fig. 2 is a schematic view of the overall structure of the passive pull-off mechanism and the guide mechanism according to the embodiment of the present invention.
Fig. 3 is a top view of a passive pull-off mechanism according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a guide mechanism according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a guide slider according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an active pull-off mechanism according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a cylinder of the embodiment of the invention.
Fig. 8 is a schematic structural diagram of an adapter according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, for the purposes of illustrating the principles of the invention. Additionally, the components in the drawings are not necessarily to scale. For example, the dimensions of some of the elements or regions in the figures may be exaggerated relative to other elements or regions to help improve understanding of embodiments of the present invention.
The directional terms used in the following description are used in the illustrated directions, and do not limit the specific configurations of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise indicated, the terms "mounted," "connected," and "connected" are to be construed broadly, for example, the connection can be fixed, detachable or integrated; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or component comprising a list of elements does not include only those elements but may include other mechanical components not expressly listed or inherent to such structure or component. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in an article or device comprising the element.
Spatially relative terms such as "below," "…," "low," "above," "…," "high," and the like are used to facilitate description to explain the positioning of one element relative to a second element, meaning that the terms are intended to encompass different orientations of the device in addition to different orientations than those shown in the figures. Further, for example, the phrase "one element is over/under another element" may mean that the two elements are in direct contact, or that there is another element between the two elements. Furthermore, terms such as "first", "second", and the like, are also used to describe various elements, regions, sections, etc. and should not be taken as limiting. Like terms refer to like elements throughout the description.
It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
Referring to fig. 1, the present invention provides a launch vehicle connector pull-off device comprising: the installation base 1, the passive pull-out mechanism 2, the active pull-out mechanism 3 and the guide mechanism 4. The passive pull-out mechanism 2 is arranged at the top of the installation foundation 1, the active pull-out mechanism 3 is arranged at one side of the passive pull-out mechanism 2, and the guide mechanism 4 is arranged at the other side of the passive pull-out mechanism 2. One end of the steel wire rope is arranged in the passive pull-off mechanism 2 in a winding way, and the other end of the steel wire rope is used for penetrating through the guide mechanism 4 and then is connected with the connector. The guide mechanism 4 is used for guiding the rope outlet action of the steel wire rope in the passive pull-off mechanism 2 and ensuring that the steel wire rope always keeps tangential rope outlet.
The guide mechanism 4 includes: a first follower 41 and a second follower 42 mounted to the passive pull-out mechanism 2, a guide rod 43, and a guide slider 44. The guide rod 43 has one end connected to the first follower 41 and the other end connected to the second follower 42 after passing through the guide slider 44. According to the change of the pitch angle and the rope discharging angle of the steel wire rope, the first follower 41 and the second follower 42 can swing along with the steel wire rope in the first direction S1 (the winding direction of the steel wire rope) so as to reduce the pitch angle and the rope discharging angle of the steel wire rope and ensure that the steel wire rope is discharged tangentially all the time.
Specifically, when the connector pulling-off device of the embodiment of the invention is arranged on the erecting bracket, the connector pulling-off device swings a certain angle along with the erecting bracket after the rocket is erected and before ignition, and the swinging action can change the rope outlet angle of the steel wire rope (the angle of the steel wire rope relative to the ground is reduced). At the moment, in order to ensure that the steel wire rope always tangentially extends, the first follower and the second follower automatically rotate towards the depression angle direction along with the steel wire rope relative to the passive pull-off mechanism, and then one end of each follower, which is provided with the guide rod, swings to a corresponding position towards the direction close to the ground. Further, when the rocket rises after ignition, the rope outlet angle of the steel wire rope changes along with the rocket (the angle of the steel wire rope relative to the ground is gradually increased). At the moment, in order to ensure that the steel wire rope always tangentially comes out, the first follower and the second follower rotate relative to the passive pull-off mechanism along with the steel wire rope, so that one end of each follower, which is provided with the guide rod, swings towards the direction far away from the ground, and the connector is driven by the tension of the passive pull-off mechanism on the steel wire rope to fall off after the steel wire rope is completely pulled out.
Meanwhile, the guide slider 44 has a guide hole through which the wire rope passes, one end of the wire rope is wound around the passive pull-off mechanism 2, and the other end of the wire rope passes through the guide hole of the guide slider 44 and then is connected to the connector. The guide slider 44 is used for driving the steel wire rope to move along the guide rod 43, so that the steel wire rope adapts to the working angle in the second direction S2, and the steel wire rope is ensured to be always tangentially led out. In view of the structural characteristics of the steel wire rope, when the steel wire rope is wound and installed on the passive pull-off mechanism, the steel wire rope is usually wound along one end of the passive pull-off mechanism by one turn. Therefore, the rope outlet position in the second (guide rod axial) direction S2 will also continuously change along with the pulling-off process of the steel wire rope during the rope outlet process of the steel wire rope. In order to adapt to the change of the rope outlet position of the steel wire rope in the passive pull-off mechanism and reduce the change of the rope outlet angle of the steel wire rope in the second direction S2, the guide slider 44 can be arranged on the guide rod 43 in a sliding manner. The steel wire rope passing through the guide hole of the guide slider 44 moves along the guide rod 43 along with the guide slider, so that the steel wire rope can be further ensured to tangentially go out.
It should be noted that the active pull-off mechanism 3 and the passive pull-off mechanism 2 are redundant to each other, and both can be used for unlocking the connector and the arrow interface by pulling the steel wire rope. Usually, under the condition that the distance and the angle between the installation position of the pull-off device and the connector are not ideal, or the pull-off device may not successfully pull off the connector passively, the connector can be quickly detached by utilizing the active pull-off mechanism 3 through active driving after the rocket takes off to a certain height. Under the condition that the position angle of the pull-off device is proper, the passive pull-off mechanism 2 is usually utilized to pull off the connector passively by the steel wire rope when the rocket takes off to a certain height and the steel wire rope is pulled out completely. The rocket connector pull-off device provided by the embodiment of the invention can simultaneously meet the pull-off requirements of two connectors, optimizes the overall mechanism layout, reduces the equipment transportation and transportation work, and is convenient for timely replacement of the pull-off mode. For example, when the rocket is close to launching, the passive pull-off mechanism cannot ideally realize the pull-off function, and the passive pull-off mechanism can be replaced by the active pull-off mechanism in time, so that the problem of delay or delay of rocket launching caused by the failure of the connector pull-off device is thoroughly solved.
According to the carrier rocket connector pull-off device provided by the embodiment of the invention, the active pull-off mechanism and the passive pull-off mechanism are arranged into a whole and are mutually redundant, so that the rocket launching efficiency and the rocket launching success rate are improved. Meanwhile, the guide mechanism can adapt to the deviation of the steel wire rope in the first direction S1 and the second direction S2 (the axial direction of the guide rod) at the same time, the steel wire rope can be ensured to be discharged all the time tangentially, the obstruction of the pull-out device of the connector to the pull-out process of the steel wire rope is thoroughly eliminated, and the influence of the pull-out device and the clamping stagnation of the steel wire rope on rocket launching is effectively avoided.
Referring to fig. 2, in one embodiment, the mounting base includes a base 11, a bottom plate 12, a back plate 13, a front bracket 14, and a rear bracket 15. The lower end face of the bottom plate 12 is arranged at the end part of the base 11, the front support 14 and the rear support 15 are oppositely arranged at two sides of the upper end face of the bottom plate 11, and the back plate 13 is arranged at the third side of the upper end face of the bottom plate 11 and is simultaneously connected with the front support 14 and the rear support 15 to form a frame. One end of the passive pull-out mechanism 2 arranged in the frame is arranged on the front bracket 14, the other end is arranged on the rear bracket 15, and the active pull-out mechanism 3 is arranged on one side of the back plate 13 far away from the passive pull-out mechanism 2.
Further, the passive pull-out mechanism 2 includes: a rope drum 21, a rope pressing roller 22, a rotating shaft 23 and a hand wheel 24. Two ends of the rotating shaft 23 respectively penetrate through the center positions of the front support 14 and the rear support 15, and the hand wheel 24 is arranged on the outer side of the front support 14 and is coaxial with the rotating shaft 23, so that the rotating shaft 23 is driven to rotate synchronously by rotating the hand wheel 24. The rope drum 21 is disposed outside the rotating shaft 23 through a bearing and a spiral spring. In view of the fact that there are a plurality of rocket interfaces, and there may be a situation that a plurality of connectors need to be pulled off by the steel wire rope at the same time, so that in order to avoid the mutual winding of a plurality of connecting steel wire ropes to influence the falling of the connectors, the steel wire rope can be kept in a stretched state by using the volute spiral spring when being stretched. The rotating shaft 23 can drive the rope drum 21 to synchronously rotate while rotating, so that the steel wire rope can be wound on the outer wall of the rope drum 21. Two ends of the rope pressing roller 22 are respectively connected with the top of the front bracket 14 and the top of the rear bracket 15, and are used for pressing and winding the steel wire rope arranged on the rope winding drum 21.
According to the rocket connector pull-off device provided by the embodiment of the invention, the hand wheel is driven to drive the rope drum to synchronously rotate along with the rotating shaft, so that the steel wire ropes are wound on the rope drum, the steel wire ropes wound on the rope drum are tightly pressed by the rope pressing stick, the phenomenon that the connector falls off due to the winding of a plurality of steel wire ropes is avoided, and the processes of winding and mounting the steel wire ropes and pulling out the steel wire ropes are further optimized.
Referring to fig. 2, 3 and 4, in one embodiment, the first follower 41 is a follower rack 411 sleeved on the rotating shaft 23 near the outer side of the rear bracket 15. The follower frame 411 has one end rotatably provided to the rotation shaft 23 and the other end for connection with the guide bar 43. The second follower 42 includes: a pitch roller 421, a fixed plate 422, and a web 423 connecting the pitch roller 421 and the fixed plate 422. Two guide rods 43 are arranged in parallel, one end of each guide rod 43 is mounted on the fixing plate 422, and the other end of each guide rod 43 penetrates through the guide slider 44 and then is connected with one end, far away from the rotating shaft 23, of the follow-up frame 411. For example, one end of the guide rod 43 may be fixedly disposed on the fixing plate 422, and the other end may be detachably disposed on the follower frame 411, so that the installation and detachment of the guide slider may be facilitated.
The outer side of the front bracket 14 is provided with a cylindrical guide surface which is matched with the pitch angle roller 421, and the cylindrical guide surface extends to the outer side of the front bracket 14 so that the pitch angle roller 421 rolls back and forth along the cylindrical guide surface in the first direction S1. Wherein the pitch angle roller 421 is in line contact with the cylindrical guide. That is, the whole guiding mechanism is only connected to the rotating shaft through the follower bracket 411, and the pitch angle roller end is only lapped on the cylindrical guiding surface. When the steel wire rope is led out along the pitching direction, the pitch angle idler wheel can roll on the cylindrical guide surface, the follow-up frame rotates relative to the rotating shaft, and then the guide sliding block is driven to rotate along with the change of the pitching rope outlet angle, and the rope outlet point is guaranteed to be always along the tangential direction of the rope winding drum.
After the guiding mechanism is installed, no movable space exists between the pitch angle roller and the follow-up frame in the second direction, so that the pitch angle roller cannot be separated from the cylindrical guiding surface in the rolling process. In addition, two pitch angle rollers may be provided in parallel so that the pitch angle rollers can stably roll along the cylindrical guide surface. The two pitch angle rollers are in line contact with the cylindrical guide surface, so that the rolling tracks of the two pitch angle rollers are consistent.
Or, a cylindrical guide groove matched with the pitch angle roller 421 is formed on the outer side of the front bracket, and the cylindrical guide groove is formed on the outer side of the front bracket in an extending manner. The depth direction of the cylindrical guide groove is consistent with the second direction S2, and the depth of the cylindrical guide groove is smaller than the radius of the pitch angle roller, so that part of the pitch angle roller is embedded in the cylindrical guide groove, and the cylindrical guide groove does not influence the rolling of the pitch angle roller. The length direction of the cylindrical guide groove is arranged in the same direction as the first direction S1, so that the pitch angle roller 421 can roll back and forth in the first direction S1 along the cylindrical guide groove to adapt to the deflection angle of the pitch angle of the steel wire rope. The pitch angle roller 421 is embedded in the cylindrical guide groove, so that the connection between the end of the pitch angle roller 421 and the front bracket 14 is realized. Specifically, when the wire rope outlet angle of the pitch angle of the wire rope changes, the wire rope transmits force to the guide slider 44, the guide slider 44 drives the pitch angle roller 421 through the guide rod to roll along the cylindrical guide groove of the front bracket 14 and along with the wire rope outlet angle of the wire rope, and at the same time, the follower bracket 411 also rotates relative to the rotating shaft along with the wire rope outlet angle of the wire rope under the driving of the guide rod. Therefore, the guide sliding block 44 can swing correspondingly along the first direction S1, and the steel wire rope arranged on the guide sliding block 44 is ensured to be discharged along the tangential direction of the rope winding drum 21 all the time.
Alternatively, the second follower may be a second follower rack provided to the rotary shaft near the outer side of the front rack. One end of the second follower frame far away from the rotating shaft is connected with one end of the follower frame 411 far away from the rotating shaft through a guide rod.
According to the rocket connector pull-off device provided by the embodiment of the invention, the follow-up frame is rotatably arranged on the rotating shaft, and the pitch angle roller is arranged on the front bracket in a rolling manner, so that the guide mechanism can swing correspondingly along with the change of the working angle of the steel wire rope on the premise of not needing additional energy drive. Meanwhile, the guide sliding block can enable the steel wire rope to move in the second direction S2 (the axial direction of the rope winding drum) so as to adapt to the rope outlet angle of the steel wire rope and conduct better guide on the steel wire rope. Therefore, the rocket connector pull-off device provided by the embodiment of the invention can adapt to working angles on various working planes.
In the above embodiment, the rope drum axial direction, the guide bar axial direction and the second direction are the same direction.
Referring to fig. 4 and 5, in the above embodiment, the guide slider 44 includes the first half slider 441, the second half slider 442, and the roller assembly. The roller assembly is disposed between the first half block 441 and the second half block 442. Grooves are respectively arranged at the middle positions of the mutually butted sides of the first half sliding block 441 and the second half sliding block 442. The roller subassembly includes: a transverse roller 443 mounted in two grooves, and two vertical rollers 444 mounted between the first half-block 441 and the second half-block 442. One of the vertical rollers is disposed on an upper portion of a side where the first half slider 441 and the second half slider 442 are butted against each other, and the other vertical roller is disposed on a lower portion of a side where the first half slider 441 and the second half slider 442 are butted against each other. The two transverse rollers are arranged at intervals, and the two vertical rollers are also arranged at intervals. The two transverse rollers and the two vertical rollers form guide holes for the steel wire rope to pass through at intervals, the wheel edges of the transverse rollers and the wheel edges of the vertical rollers are arranged in a small gap mode, and the diameter of the gap is far smaller than that of the steel wire rope.
The carrier rocket connector pull-off device provided by the embodiment of the invention guides the steel wire rope from four directions through the two transverse idler wheels and the two vertical idler wheels. The four rollers are arranged close to each other and do not influence rolling of the four rollers, so that rope discharging of the steel wire rope in all directions can be guided in the process from rocket ignition to falling of the connector, and adverse effects caused by clamping stagnation of the steel wire rope in the rope discharging process of the steel wire rope are thoroughly eliminated.
Further, each of the lateral rollers 443 may be rotatably disposed in the groove by a roller shaft 445, respectively. Each vertical roller 444 may be rotatably disposed between the first half block 441 and the second half block 442 through a roller shaft 445, respectively.
In the above embodiment, a limiting spring is arranged at one end of the guide rod away from the pitch angle roller. The limiting spring is used for limiting the moving range of the guide sliding block on the guide rod, so that the guide sliding block is prevented from moving to the end of the follow-up frame, and the rope outlet angle between the steel wire rope and the rope winding drum is prevented from being too large.
Referring to fig. 6 and 7, in the above embodiment, the active pull-off mechanism 3 includes: a bracket 31, a cylinder 32, a push-pull flexible shaft 33 and a steel wire rope 100. The bracket 31 is mounted on the back plate 13, the air cylinder 32 is mounted on the bracket 31, one end of the air cylinder 32 is connected with the push-pull flexible shaft 33 by the piston rod 321, and the other end of the push-pull flexible shaft 33 is used for being connected with the steel wire rope 100 fixedly arranged on the connector. By driving the air cylinder 32, the piston rod 321 can drive the push-pull flexible shaft 33 to be recovered, and further the steel wire rope 100 is pulled to unlock the connector 200 and the arrow upper interface. When the device is installed, the piston rod is in a fully pulled-out state relative to the cylinder body, the piston rod drives the push-pull flexible shaft to be recovered when the device works, pulling force is transmitted to the steel wire rope, and then the steel wire rope is pulled to unlock the connector.
The air cylinder can be replaced by other different power source types with similar working principles such as a hydraulic cylinder, an electric cylinder and the like.
In the above embodiment, the cylinder 32 includes: a cylinder 322 provided to the bracket 31, an air supply pipe 323 provided to the cylinder 322, and an electromagnetic valve 324. One end of the cylinder 322 is provided with a piston rod 321, one side of the cylinder 322 close to the piston rod 321 is communicated with one end of an air supply pipe 323, and the other end of the air supply pipe 323 is connected with a solenoid valve 324. The cylinder 322 has a side provided with the piston rod 321, and is communicated with the atmosphere through a gas supply pipe 323 and a solenoid valve 324. When the electromagnetic valve 324 is powered on, air can be supplied to the cylinder body 322 through the air supply pipe 323, the piston rod 321 is driven to act to be retracted, that is, part of the piston rod 321 retracts into the cylinder 322 and drives the push-pull flexible shaft to be retracted together, the push-pull flexible shaft 33 transmits the retracted force to the steel wire rope 100, and then the connector 200 is unlocked by pulling the pull-off steel wire rope 100.
The connector pull-off device is generally arranged on a launcher, and for a new rocket, a new launcher is not usually built, and the existing launcher is usually adopted for launching. Thus, the connector pull-off device, which is limited by the launch cradle structure and mounting location, is not ideal in terms of pull-off distance and angle, and typically has some spatial distance and angle differences. Therefore, under the condition, the connector pull-off device provided by the embodiment of the invention can be adopted to control the connector to fall off in time at proper time through active operation, so that the normal launching of the rocket is guaranteed. The connector pull-off device provided by the embodiment of the invention can be arranged at any position of the launcher and applies an active pull-off force for the falling of the connector, so that the device can adapt to the condition that the rocket of the new type is launched by adopting the existing launcher. Not only avoids the reconstruction of the launcher and saves the resources and the labor cost, but also ensures the timely and successful falling of the connector when the new type rocket is launched.
Referring to fig. 6, in one embodiment, one end of the push-pull flexible shaft 33 is connected to the piston rod 321 through the adaptor 34, and the other end is connected to the cable 100 through the cable connector 35. Wherein, the piston rod 321 and the circumferential outer side of the adaptor 34 are provided with a first flexible shaft support cylinder 36, and the circumferential outer side of the steel wire rope connector 35 is provided with a second flexible shaft support cylinder 37. The first flexible shaft supporting cylinder 36 and the second flexible shaft supporting cylinder 37 also wrap part of the push-pull flexible shaft 33 so as to facilitate the stress of the two ends of the push-pull flexible shaft 33 after being straightened. Because the connector pull-off device and the connector are generally arranged in a high-low mode, the position relation difference is large, and the push-pull flexible shaft is heavy. Therefore, in order to adapt to the connecting position of the push-pull flexible shaft and the connector and avoid the connecting position of the push-pull flexible shaft and the steel wire rope from being bent, the connector falling-off device provided by the embodiment of the invention is provided with the flexible shaft supporting cylinder at the position which is easy to bend, and the flexible shaft supporting cylinder wraps the easy-to-bend part, so that good connection and stress between the push-pull flexible shaft and the connector pulling-off device are ensured, and potential safety hazards (such as breakage of the bent part and the like) possibly existing in the pulling-off process of the connector are eliminated.
In order to facilitate connection, the first flexible shaft supporting cylinder can be connected to the support through a flange structure, and the second flexible shaft supporting cylinder can be connected with the connector through a flange structure.
In the above embodiment, the push-pull flexible shaft 33 includes a mandrel and a sheath wrapped around the mandrel. The mandrel is extendable and retractable a certain stroke relative to the sheath to facilitate the transfer of forces to cylinders and connectors that are not on the same axis and not in the same direction. One end of the mandrel is connected with the piston rod 321 through the adapter piece 34, and the other end of the mandrel is connected with the steel wire rope through the steel wire rope connecting piece 35. The two ends of the sheath are connected with flange structures which are respectively arranged on the first flexible shaft supporting cylinder and the second flexible shaft supporting cylinder. When the push-pull flexible shaft is installed, the core shaft at the end of the cylinder is completely retracted into the sheath during installation, and the core shaft at the end of the steel wire rope is completely pulled out.
Referring to fig. 8, further, the adaptor includes a double lug ring 341 screwed to the piston rod 321, a fish eye joint 342 screwed to the mandrel, and a screw 343 and a nut 344. The fisheye hole of the fisheye joint 342 is arranged in the middle of the double-lug ring 341, and the screw 343 passes through the fisheye joint 342 and the double-lug ring 341 simultaneously and is fixedly connected by the nut 344.
The steel wire rope connecting piece can comprise a fisheye joint, a screw and a nut, one end of the fisheye joint is in threaded connection with the mandrel, the other end of the fisheye joint is connected with the steel wire rope in a crimping mode through the fisheye and the screw, and the screw is fixed through the nut.
In order to facilitate the operation of the adaptor and the steel wire rope connecting piece, a first waist-shaped hole is formed in the position, corresponding to the adaptor, of the first flexible shaft supporting cylinder, so that the adaptor can be connected through the first waist-shaped hole. And a second waist-shaped hole is formed in the position, corresponding to the steel wire rope connecting piece, of the second flexible shaft supporting cylinder, so that the steel wire rope connecting piece can be connected through the second waist-shaped hole.
The above embodiments may be combined with each other with corresponding technical effects.
According to the carrier rocket connector pull-off device provided by the invention, the active pull-off mechanism and the passive pull-off mechanism are arranged into a whole and are mutually redundant, so that the problem of rocket launching delay or delay caused by connector falling equipment failure is thoroughly eliminated, and meanwhile, the reliability of connector pull-off unlocking is also improved. Meanwhile, the rope outlet angle and the rope outlet position of the steel wire rope are changed along with the change of the rising height of the rocket after ignition, the guide mechanism in the pull-off device can adjust the rope outlet angle of the steel wire rope in the first direction and the second direction simultaneously, and can provide guide and promoting effects for the rope outlet of the steel wire rope by utilizing the rollers, so that the steel wire rope can be ensured to smoothly go out and always keep tangential rope outlet, and the connector pull-off device can adapt to the working angles on all working planes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A carrier rocket connector pull-off device is characterized by at least comprising an installation base, a passive pull-off mechanism, an active pull-off mechanism and a guide mechanism;
the passive pull-out mechanism is arranged at the top of the installation foundation, the active pull-out mechanism is arranged on one side of the passive pull-out mechanism, the guide mechanism is arranged on the other side of the passive pull-out mechanism, and the guide mechanism is used for guiding the pull-out action of the steel wire rope in the passive pull-out mechanism;
the guide mechanism includes: the first follower and the second follower are arranged on the passive pull-out mechanism, the guide rod and the guide slide block are arranged on the passive pull-out mechanism; one end of the guide rod is connected with the first follower, and the other end of the guide rod penetrates through the guide sliding block and then is connected with the second follower;
according to the change of the pitch angle rope-discharging angle of the steel wire rope, the first follower and the second follower can swing along with the steel wire rope in the first direction, so that the pitch angle rope-discharging angle of the steel wire rope is reduced, and the steel wire rope is ensured to be discharged tangentially all the time;
the guide sliding block is provided with a guide hole for the steel wire rope to pass through; one end of the steel wire rope is wound on the passive pull-out mechanism, and the other end of the steel wire rope penetrates through the guide hole of the guide sliding block and then is connected with the connector; the guide sliding block is used for driving the steel wire rope to move along the guide rod, so that the steel wire rope adapts to a working angle in a second direction, and the steel wire rope is ensured to be always tangentially led out;
the active pull-out mechanism and the passive pull-out mechanism are both used for unlocking the connector and the arrow upper interface by pulling the steel wire rope, and the active pull-out mechanism and the passive pull-out mechanism are arranged in a redundant manner.
2. The launch vehicle connector pull-off device of claim 1 wherein said mounting base comprises a base, a floor, a back plate, a front bracket and a rear bracket;
the lower end face of the bottom plate is arranged on the base, the front support and the rear support are oppositely arranged on two sides of the upper end face of the bottom plate, and the back plate is arranged on the third side of the upper end face of the bottom plate and is simultaneously connected with the front support and the rear support to form a frame;
the passive pull-out mechanism is arranged in the frame, one end of the passive pull-out mechanism is arranged on the front support, the other end of the passive pull-out mechanism is arranged on the rear support, and the active pull-out mechanism is arranged on one side, far away from the passive pull-out mechanism, of the back plate.
3. The launch vehicle connector pull-off device of claim 2 wherein said passive pull-off mechanism comprises: the rope winding drum, the rope pressing roller, the rotating shaft and the hand wheel; two ends of the rotating shaft respectively penetrate through the center positions of the front bracket and the rear bracket, and the hand wheel is arranged on the outer side of the front bracket and is coaxial with the rotating shaft; the rope winding drum is arranged outside the rotating shaft through a bearing and a volute spiral spring; the spiral spring can keep the steel wire rope in a stretched state when the steel wire rope stretches;
the hand wheel is used for driving the rope drum to synchronously rotate along with the rotating shaft, so that the steel wire rope is wound on the rope drum; and two ends of the rope pressing roller are respectively connected with the top of the front support and the top of the rear support and are used for pressing and winding the steel wire rope arranged on the rope winding drum.
4. The launch vehicle connector pull-off device according to claim 3 wherein said first follower is a follower bracket journaled to said shaft adjacent an outer side of said rear bracket; the second follower includes: the pitch angle rolling wheel, the fixing plate and the spoke plate which connects the pitch angle rolling wheel and the fixing plate;
two guide rods are arranged in parallel; one end of each guide rod is arranged on the fixed plate, and the other end of each guide rod is connected with one end of the follow-up frame far away from the rotating shaft;
the outer side of the front support is provided with a cylindrical guide surface matched with the pitch angle roller, and the cylindrical guide surface extends to be arranged on the outer side of the front support so that the pitch angle roller can roll back and forth along the cylindrical guide surface in the first direction; the pitch angle roller is in line contact with the cylindrical guide surface;
when the steel wire rope is led out along the pitch angle, the pitch angle roller can roll along the cylindrical guide surface of the front support, and the follow-up frame can rotate along the rotating shaft, so that the guide rod swings along the first direction, and the steel wire rope arranged on the guide sliding block is led out along the tangential direction of the rope winding drum all the time.
5. The launch vehicle connector pull-off device of claim 4 wherein said guide slide comprises a first half slide, a second half slide and a roller assembly; the roller assembly is arranged between the first half sliding block and the second half sliding block;
grooves are respectively arranged at the middle positions of the butt joint sides of the first half sliding block and the second half sliding block;
the roller assembly includes: the transverse rollers are arranged in the two grooves, and the two vertical rollers are arranged between the first half sliding block and the second half sliding block; one vertical roller is arranged at the upper part of one side, in which the first half sliding block and the second half sliding block are butted, of the first half sliding block and the second half sliding block, and the other vertical roller is arranged at the lower part of one side, in which the first half sliding block and the second half sliding block are butted, of the first half sliding block and the second half sliding block are butted;
the two transverse rollers are arranged at intervals, and the two vertical rollers are also arranged at intervals; the guide holes are formed at intervals between the two transverse rollers and the two vertical rollers.
6. The launch vehicle connector pull-off device of claim 5 wherein each of said transverse rollers is rotatably disposed in said recess by a roller shaft; each vertical roller is rotatably arranged between the first half sliding block and the second half sliding block through a roller shaft.
7. The launch vehicle connector pull-off device of any one of claims 2 to 6 wherein said active pull-off mechanism comprises: the device comprises a bracket, a cylinder, a push-pull flexible shaft and a steel wire rope;
the bracket is arranged on the back plate, and the air cylinder is arranged on the bracket; one end of the cylinder is connected with the push-pull flexible shaft by a piston rod, and the other end of the push-pull flexible shaft is used for being connected with a steel wire rope fixedly arranged on the connector;
the piston rod drives the push-pull flexible shaft to be recovered by driving the air cylinder, and then the steel wire rope is pulled to unlock the connector and the arrow upper interface.
8. The launch vehicle connector pull-off device of claim 7 wherein said cylinder comprises: the cylinder body is arranged on the support, and the air supply pipe and the electromagnetic valve are arranged on the cylinder body;
the piston rod is arranged at one end of the cylinder body, one end of the air supply pipe is communicated with one side of the cylinder body close to the piston rod, and the other end of the air supply pipe is connected with the electromagnetic valve; the cylinder body is communicated with the atmosphere through the air supply pipe and the electromagnetic valve;
when the electromagnetic valve is electrified, the air can be supplied to the cylinder body, the piston rod is driven to act and drive the push-pull flexible shaft to be recovered, and then the steel wire rope is pulled to unlock the connector.
9. The launch vehicle connector pull-off device of claim 8, wherein one end of the push-pull flexible shaft is connected to the piston rod through an adapter, and the other end is connected to a wire rope through a wire rope connector;
the circumferential outer sides of the piston rod and the adapter are provided with first flexible shaft supporting cylinders, and the circumferential outer side of the steel wire rope connecting piece is provided with a second flexible shaft supporting cylinder; the first flexible shaft supporting cylinder and the second flexible shaft supporting cylinder wrap part of the push-pull flexible shaft so as to facilitate the force of the two ends of the push-pull flexible shaft after being stretched;
the first flexible shaft supporting cylinder is connected to the support through a flange structure, and the second flexible shaft supporting cylinder is connected with the connector through a flange structure.
10. The launch vehicle connector pull-off device of claim 9 wherein said push-pull flexible shaft includes a mandrel and a sheath wrapped around the outside of said mandrel; two ends of the mandrel are respectively connected with the adaptor and the steel wire rope connecting piece, and two ends of the sheath are respectively connected with the first flexible shaft supporting cylinder and the second flexible shaft supporting cylinder;
a first waist-shaped hole is formed in the position, corresponding to the adaptor, of the first flexible shaft supporting cylinder, so that the adaptor can be connected through the first waist-shaped hole;
and a second waist-shaped hole is formed in the position, corresponding to the steel wire rope connecting piece, of the second flexible shaft supporting cylinder, so that the steel wire rope connecting piece can be connected through the second waist-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210505093.8A CN114923375B (en) | 2022-05-10 | 2022-05-10 | Carrier rocket connector pulling-out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210505093.8A CN114923375B (en) | 2022-05-10 | 2022-05-10 | Carrier rocket connector pulling-out device |
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| Publication Number | Publication Date |
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| CN114923375A CN114923375A (en) | 2022-08-19 |
| CN114923375B true CN114923375B (en) | 2023-03-31 |
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| CN202210505093.8A Active CN114923375B (en) | 2022-05-10 | 2022-05-10 | Carrier rocket connector pulling-out device |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193172B (en) * | 2013-04-07 | 2015-03-11 | 河北工业大学 | Winding machine without rope tangling |
| CN104696107B (en) * | 2013-12-10 | 2017-02-15 | 上海宇航系统工程研究所 | Follow-up device for loading-unloading connector |
| FR3061894A1 (en) * | 2017-01-17 | 2018-07-20 | Latecoere Services | LAUNCHER RETRACTABLE FEEDING SYSTEM AND CORRESPONDING RETRIEVAL METHOD |
| CN210364436U (en) * | 2019-07-04 | 2020-04-21 | 蓝箭航天空间科技股份有限公司 | Drop-out restraining device for launch vehicle filling connector |
| CN210505338U (en) * | 2019-08-17 | 2020-05-12 | 上海北盛建设工程发展有限公司 | Hoist engine for building |
| CN212151379U (en) * | 2020-04-18 | 2020-12-15 | 河南省晟源起重机械有限公司 | Steel wire rope winding device of bridge crane |
| CN112010116A (en) * | 2020-09-25 | 2020-12-01 | 山东固丝德夫机械制造有限公司 | Rope collecting device for hoisting steel wire rope and using method thereof |
| CN113060663B (en) * | 2021-03-08 | 2022-02-01 | 蓝箭航天空间科技股份有限公司 | Traction device for rocket connector separation |
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Effective date of registration: 20230116 Address after: 314000 East Room 801-1, building 31, Hangzhou bay new economic Park, Jiaxing Port Area, Zhejiang Province Applicant after: Zhejiang blue arrow Space Technology Co.,Ltd. Address before: Building H1, AVIC International Plaza, yard 13, Ronghua South Road, Daxing Economic and Technological Development Zone, Beijing 100176 Applicant before: Blue Arrow Space Technology Co.,Ltd. |
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