CN114455090B - Transmission system suitable for ship-borne helicopter landing assisting device - Google Patents

Abstract

The application discloses a transmission system applicable to a landing aid device for a shipboard helicopter, and relates to the field of the landing aid device for a shipboard helicopter. It includes a hydraulic device, a support frame and two opposite capture beams slidingly connected in the support frame. The hydraulic device drives the two capture beams to move towards or away from each other through two transmission mechanisms; each transmission mechanism includes At least one pair of pulley transmission assemblies respectively connected to both sides of the same capture beam, each pulley transmission assembly includes a rope, a pulley block and a pressing block, the movable pulley of the pulley block is arranged on the cylinder of the hydraulic device, and one end of the rope is connected to the catch On one side of the beam, the other end bypasses the pulley block and connects with the pressure block; when the movable pulley of the pulley block moves reciprocatingly with the cylinder of the hydraulic device, a pair of ropes connected to both sides of the capture beam alternately pull the corresponding Capture the beam. The application has a compact structure, which can not only capture the probe rod quickly, but also straighten the shipboard helicopter vigorously at a slow speed.

Description

A transmission system suitable for landing aids for shipboard helicopters

technical field

The present application relates to the technical field of landing aids for shipboard helicopters, in particular to a transmission system suitable for landing aids for shipboard helicopters.

Background technique

The shipborne helicopter landing aid device is an indispensable device during the landing process of the shipborne helicopter. The existing automated landing aid devices in the world include the autonomous landing capture type and the pull down capture type. In the autonomous landing capture type, after the shipboard helicopter lands on the ship deck autonomously, the landing aid device moves to capture the probe rod of the shipboard helicopter; in the pull down capture type, the carrier helicopter is pulled down to the deck by the winch mechanism under the ship deck and The probe rod falls in the capture trap of the landing aid device, and then is captured by the two capture beams of the landing aid device.

At present, there are only autonomous landing and capture landing aids in China, and the pull-down and capture landing aids are still in a blank stage. The core system of the landing aid device is the transmission system. Due to space constraints, the transmission system of the foreign pull-down and capture-type landing aid device uses a hydraulic cylinder to drive the chain, and the movement of the actuator is amplified by the diameter difference between the sprocket and its coaxial drum. journey. The transmission system has a complex structure, takes up a lot of space, and can only transmit a small force, so it cannot be used for lateral alignment of large-tonnage ship-borne helicopters.

Contents of the invention

The present application provides a transmission system suitable for a landing aid device for a shipboard helicopter, which solves the problem that the existing transmission system has a complex structure and cannot horizontally straighten the position of the shipboard helicopter.

In order to achieve the above-mentioned purpose, the present application provides a transmission system suitable for a shipborne helicopter landing aid, including a hydraulic device, a support frame and two oppositely arranged capture beams slidingly connected in the support frame, and the hydraulic device passes two The two transmission mechanisms respectively drive the two capture beams to move towards or away from each other;

Each of the transmission mechanisms includes at least one pair of pulley transmission assemblies respectively connected to both sides of the same capture beam, each of the pulley transmission assemblies includes a rope, a pulley block and a briquetting block, and the movable pulley of the pulley block is arranged on the cylinder of the hydraulic device One end of the rope is connected to one side of the capture beam, and the other end is connected to the pressure block after bypassing the pulley block; when the movable pulley of the pulley block reciprocates with the cylinder of the hydraulic device, it is connected to two A pair of ropes on the side pull the capture beam connected to it to move.

Further, the base plate is also included, and the support frame and the hydraulic device are respectively arranged on both sides of the upper surface of the base plate; the hydraulic device includes a first fine hydraulic cylinder and a second fine hydraulic cylinder arranged in parallel to each other, and the first fine hydraulic cylinder The reciprocating direction of the second thin hydraulic cylinder is parallel to the moving direction of the capture beam. The outer walls of the first thin hydraulic cylinder and the second thin hydraulic cylinder are respectively sleeved with a first connecting frame and a second connecting frame. The two ends of the thin hydraulic cylinder are respectively fixed on the bottom plate through two first supports, and the two ends of the second thin hydraulic cylinder are respectively fixed on the bottom plate through two second supports; the movable pulley of one of the transmission mechanisms is connected to the first connecting frame On, the movable pulley of another transmission mechanism is connected to the second connecting frame;

One side of the first fine hydraulic cylinder and the second fine hydraulic cylinder are respectively provided with a first guide rod and a second guide rod, one end of the first guide rod is fixed on one of the first supports, and the other end passes through the first connecting frame It is fixed on another first support; one end of the second guide rod is fixed on one of the second supports, and the other end passes through the second connecting frame and is fixed on the other second support.

Further, the pulley block includes a first fixed pulley, a second fixed pulley and a movable pulley arranged in sequence along the rope winding direction, the first fixed pulley and the second fixed pulley are located on the same side of the capture beam, the first fixed pulley, the second fixed pulley The axes of the pulley and the movable pulley are vertical; the rope segments between the capture beam and the first fixed pulley, the second fixed pulley and the movable pulley, and the movable pulley and the briquetting block are parallel to each other; the ropes between the first fixed pulley and the second fixed pulley are The segments are perpendicular to the remaining rope segments; the ropes of one transmission mechanism are higher than the ropes of the other transmission mechanism.

Further, one side of the first thin hydraulic cylinder is also connected in parallel with a rough hydraulic cylinder, one end of the first rough hydraulic cylinder is fixed on one of the first supports, and the other end is fixed on the other first support through the first connecting frame. On the support, the first fine hydraulic cylinder moves synchronously with the rough hydraulic cylinder.

Further, at least one locking hook is provided on one of the capturing beams, and a post matching the locking hook is provided on the other capturing beam.

Further, slide rails are provided on the two opposite inner wall surfaces of the support frame, and protrusions matching with the slide rails are provided at both ends of the two capture beams.

Further, the two transmission mechanisms each include two pairs of pulley transmission assemblies, the ropes of the two pairs of pulley transmission assemblies are respectively connected to the left and right ends of the same side of the capture beam, and the height of one of the ropes is lower than the other.

Further, the first fixed pulley and the second fixed pulley are fixed on the bottom plate through the pulley seat.

Compared with the prior art, the present application has the following beneficial effects: the transmission system of the present application is simple in structure and saves space, and the moving stroke of the capturing beam is enlarged through the movable pulley, which can move at high speed to capture the probe rods respectively, and can also output several tons of force to horizontally align the position of the shipboard helicopter.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the isometric view of transmission system in embodiment 2;

Fig. 2 is the isometric view of transmission system in embodiment 2;

Fig. 3 is the top view of transmission system in embodiment 2;

Fig. 4 is the side view of transmission system in embodiment 2;

Fig. 5 is the isometric view of parallel hydraulic cylinder in embodiment 2;

Fig. 6 is the isometric view of the second fine hydraulic cylinder in embodiment 2;

Fig. 7 is the isometric view of double-layer large fixed pulley in embodiment 2;

Fig. 8 is an isometric view of the double-layer small fixed pulley of Embodiment 2.

In the figure: 1-bottom plate, 2-side plate, 3-hydraulic device, 4-support frame, 5-first thick steel wire rope, 6-second thick steel wire rope, 7-third thick steel wire rope, 8-fourth thick steel wire rope, 9-the first thin steel wire rope, 10-the second thin steel wire rope, 11-the third thin steel wire rope, 12-the fourth thin steel wire rope, 13-the first single-layer large fixed pulley, 14-the second single-layer large fixed pulley, 15- The first double-layer large fixed pulley, 16-the third single-layer large fixed pulley, 17-the fourth single-layer large fixed pulley, 18-the second double-layer large fixed pulley, 19-the first single-layer small fixed pulley, 20- The second single-layer small fixed pulley, 21-the first double-layer small fixed pulley, 22-the third single-layer small fixed pulley, 23-the fourth single-layer small fixed pulley, 24-the second double-layer small fixed pulley, 25- The first pressing block, 26-the second pressing block, 27-the third pressing block, 28-the fourth pressing block, 29-the first capturing beam, 30-the second capturing beam, 31-the first locking hook, 32- Second locking hook, 33-coarse hydraulic cylinder, 34-first fine hydraulic cylinder, 35-first guide rod, 36-first connecting frame, 37-first upper large movable pulley, 38-first lower large movable pulley , 39-the second upper large moving pulley, 40-the second lower large moving pulley, 41-the second thin hydraulic cylinder, 42-the second guide rod, 43-the second connecting frame, 44-the first upper small moving pulley, 45-the first Lower floor small movable pulley, 46- second upper floor small movable pulley, 47- second lower floor small movable pulley, 48- upper fixed pulley, 49- lower fixed pulley, 50- large base, 51- large cover plate, 52- upper layer Small fixed pulley, 53-low floor small fixed pulley, 54-small base, 55-small cover plate, 56-first track, 57-second track.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In the description of this application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the application.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

The terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, unless otherwise specified, "plurality" means two or more.

Embodiment 1: A transmission system suitable for landing aids for shipborne helicopters, including a base plate 1, a hydraulic device 3, a support frame 4 and two capture beams, the hydraulic device 3 and the support frame 4 are respectively arranged on the upper surface of the base plate 1 On the left and right sides or on the front and rear sides, the hydraulic device 4 drives the two capture beams to move towards or away from each other through two transmission mechanisms. The hydraulic device 3 includes a parallel hydraulic cylinder and a second thin hydraulic cylinder 41 arranged in parallel with each other. The parallel hydraulic cylinders include a coarse hydraulic cylinder 33 and a first fine hydraulic cylinder 34 , and may also be other structures capable of moving the two capture beams away from each other or towards each other. The reciprocating direction of the first fine hydraulic cylinder 34 and the second fine hydraulic cylinder 41 is parallel to the moving direction of the catch plate.

The two capture beams are set opposite to each other, and both ends of the two capture beams are slidingly connected to the inner wall surface of the supporting frame. The sliding connection method may adopt slide rails, specifically, slide rails are provided on the two opposite inner wall surfaces of the support frame 4, and protrusions matching the slide rails are provided at both ends of the two capturing beams. One of the capture beams is provided with at least one locking hook, the other capture beam is provided with a column that matches the locking hook, and the opposite surfaces of the two capture beams are equipped with groove.

Both transmission mechanisms include a pair of pulley transmission assemblies, the two pulley transmission assemblies are arranged oppositely and connected to both sides of the same capture beam, and each pulley transmission assembly includes a rope, a pulley block and a pressing block. The pulley block includes a first fixed pulley, a second fixed pulley and a movable pulley, the first fixed pulley and the second pulley are located on the same side of the capture beam, and the axial directions of the first fixed pulley, the second fixed pulley and the movable pulley are all vertical. One end of the rope is connected on one side of the capture beam, and the other end is connected with the briquetting block after going around the first fixed pulley, the second fixed pulley and the movable pulley. The rope sections between the capture beam and the first fixed pulley, the second fixed pulley and the movable pulley, and the movable pulley and the briquetting block are parallel to each other, and the rope sections between the first fixed pulley and the second fixed pulley are perpendicular to the remaining rope sections. The two movable pulleys of one of the transmission mechanisms are arranged on the cylinder barrel of the first fine hydraulic cylinder 34, and the two movable pulleys of the other transmission mechanism are arranged on the cylinder barrel of the second fine hydraulic cylinder 41. When the two movable pulleys of one transmission mechanism When the cylinder barrel of the hydraulic device 3 reciprocates, a pair of ropes connected to both sides of the capture beam pulls the capture beam connected to it in an elastic and tight rotation. The first fixed pulley and the second fixed pulley are fixed on the base plate 1 by the pulley seat. The height of the rope of one of the transmission mechanisms is higher than that of the other transmission mechanism to prevent mutual influence.

The rough hydraulic cylinder 33 is located on one side of the first fine hydraulic cylinder 34 and moves synchronously with the rough hydraulic cylinder 33 . The outer wall of the thick hydraulic cylinder 33 and the first thin hydraulic cylinder 34 is provided with a first connecting frame 36, the outer wall of the second thin hydraulic cylinder 41 is provided with a second connecting frame 43, and the first thin hydraulic cylinder 34 is two One end of the rough hydraulic cylinder 33 is fixed on one of the first supports, and the other end passes through the first connecting frame 36 and is fixed on the other first support. The two ends of the two thin hydraulic cylinders 41 are respectively fixed on the base plate 1 through two second supports; the movable pulley of one of the transmission mechanisms is connected to the first connecting frame 36, and the movable pulley of the other transmission mechanism is connected to the second connecting frame 43 One side of the first thin hydraulic cylinder 34 and the second thin hydraulic cylinder 41 is respectively provided with the first guide rod 35 and the second guide rod 42, and one end of the first guide rod 35 is fixed on one of the first bearings, and the other One end passes through the first connecting frame 36 and is fixed on the other first support; one end of the second guide rod 42 is fixed on one of the second supports, and the other end passes through the second connecting frame 43 and is fixed on the other second support. on the stand.

The working principle of Embodiment 1 of the present application is as follows: when the shipborne helicopter lands, the probe rod enters between the two capture beams, and then starts the first fine hydraulic cylinder 34 and the second fine hydraulic cylinder 41 to quickly capture, and the second fine hydraulic cylinder 41 moves quickly, thereby driving a catch beam opposite to it to move quickly to the middle; the first thin hydraulic cylinder 34 moves quickly, thereby driving the other catch beam to move quickly to the middle, and the thick hydraulic cylinder 33 is in a free floating state at this time , following the synchronous movement of the first fine hydraulic cylinder 34. The movement directions of the first thin hydraulic cylinder 34 and the second thin hydraulic cylinder 41 are opposite, and the two cylinders move in opposite directions. When the two capture beams catch the probe rod and collide together, the locking hook locks the two capture beams so as to realize fixing the shipborne helicopter probe rod.

After capturing the ship-borne helicopter, it is necessary to carry out horizontal alignment of the ship-borne helicopter and put it into storage, and then start the slow-speed and vigorous alignment. At this time, the two capture beams and the ship-borne helicopter probe rod have been fixed together, and only one capture beam needs to be moved. Can drive another capture beam motion; Start coarse hydraulic cylinder 33, now the first fine hydraulic cylinder 34 and the second fine hydraulic cylinder 41 are in free floating state, thick hydraulic cylinder 33 drives the first fine hydraulic cylinder 34 and the second fine hydraulic cylinder The hydraulic cylinder 41 moves at a slow speed, thereby driving the two capture beams to move at a slow speed to straighten the attitude of the shipborne helicopter until it is put into storage.

Embodiment 2, a transmission system suitable for a landing aid device of a shipboard helicopter, used for fixing the probe rod of the shipboard helicopter and straightening the attitude of the shipboard helicopter. Referring to Figures 1-3, the system includes a base plate 1, a hydraulic device 3, a side plate 2, a support frame 4, a first capture beam 29 and a second capture beam 30, and the hydraulic device 3 and the support frame 4 are respectively arranged on the upper surface of the base plate 1. On the left and right sides or on the front and rear sides, the side plates 2 are fixed on the bottom plate 1 and are located on the side of the hydraulic device 3 away from the support frame 4 . The hydraulic device 3 respectively drives the first capture beam 29 and the second capture beam 30 to move toward or away from each other through the first transmission mechanism and the second transmission mechanism. The left and right ends of the upper surface of the first capture beam 29 are respectively provided with a first locking hook 31 and a second locking hook 32, and the upper surface of the second capturing beam 30 is provided with a groove, and the groove is fixed with the first locking hook 31 and the second locking hook 32. The locking hook 31 and the second locking hook 32 are cooperating columns respectively. The support frame 4 is a structure surrounded by four end-to-end connection plates, and the inner walls of the two opposite connection plates are respectively provided with a first track 56 and a second track 57, a first capture beam 29 and a second capture beam 30 The two ends of each are respectively provided with protrusions that cooperate with the first track 56 and the second track 57 .

Both the first transmission mechanism and the second transmission mechanism include two pairs of pulley transmission assemblies, and the two pulley transmission assemblies of each pair of pulley transmission assemblies are arranged oppositely and connected to both sides of the same capture beam, and each pulley transmission assembly includes a rope, a pulley block and briquetting. Since this embodiment uses two pairs of pulley transmission assemblies, in order to express the structure more clearly, the first transmission mechanism and the second transmission mechanism are integrated together. Because the rough hydraulic cylinder 33 in the parallel hydraulic cylinder needs several tons of force to straighten the shipborne helicopter horizontally, the diameter of the pulley connected to the thick hydraulic cylinder 33 is large and the diameter of the wire rope is thick. And the second thin hydraulic cylinder 41 only needs to capture quickly and does not need to be straightened vigorously, so the diameter of the pulley connected to the second thin hydraulic cylinder 41 is small and the diameter of the wire rope is thin.

The overall transmission mechanism includes a double-layer large fixed pulley block, a double-layer small fixed pulley block, a single-layer large fixed pulley block, a single-layer small fixed pulley block, a wire rope block, a briquetting block block, the first double-layer large movable pulley block, and the second double-layer large movable pulley block. Pulley block, the first double-layer small movable pulley block, the second double-layer small movable pulley block.

As shown in Figure 1-4, the double-layer large fixed pulley block includes the first double-layer large fixed pulley 15 and the second double-layer large fixed pulley 18; the double-layer small fixed pulley block includes the first double-layer small fixed pulley 21 and the second double-layer small fixed pulley. Layer small fixed pulley 24; Single layer large fixed pulley block comprises: the first single layer large fixed pulley 13, the second single layer large fixed pulley 14, the 3rd single layer large fixed pulley 16, the 4th single layer large fixed pulley 17; Layer small fixed pulley block includes: the first single layer small fixed pulley 19, the second single layer small fixed pulley 20, the third single layer small fixed pulley 22, the fourth single layer small fixed pulley 23; the wire rope group includes: the first thick steel wire rope 5. The second thick steel wire rope 6, the third thick steel wire rope 7, the fourth thick steel wire rope 8, the first thin steel wire rope 9, the second thin steel wire rope 10, the third thin steel wire rope 11, and the fourth thin steel wire rope 12; the steel wire rope pressing block group includes: The first briquetting block 25, the second briquetting block 26, the 3rd briquetting block 27, the 4th briquetting block 28; The first double-layer big moving pulley block comprises the first upper floor big moving pulley 37, the first lower floor big moving pulley 38; Layer big moving pulley block comprises the second upper floor big moving pulley 39, the second lower floor big moving pulley 40; The second upper floor small movable pulley 46, the second lower floor small movable pulley 47.

The hydraulic device 3 includes a first guide rod 35, a first connecting frame 36, a second guiding rod 42, a second connecting frame 43, and a first fine hydraulic cylinder 34, a rough hydraulic cylinder 33, and a second fine hydraulic cylinder 34 arranged parallel to each other. . The reciprocating direction of the rough hydraulic cylinder 33 , the first fine hydraulic cylinder 34 and the second fine hydraulic cylinder 41 is parallel to the moving direction of the catch plate.

As shown in Figure 5, the rough hydraulic cylinder 33 is located on one side of the first thin hydraulic cylinder 34, and the first connecting frame 36 is sleeved on the outer walls of the rough hydraulic cylinder 33 and the first thin hydraulic cylinder 34 at the same time, and the first connecting frame 36 The intermediate positions of the coarse hydraulic cylinder 33 and the first fine hydraulic cylinder 34 are fixed together so that the coarse hydraulic cylinder 33 and the first fine hydraulic cylinder 34 can move synchronously. Both ends of the first fine hydraulic cylinder 34 and the coarse hydraulic cylinder 3 are respectively fixed on the bottom plate 1 through two first supports. The first guide rod 35 is located above the first fine hydraulic cylinder 34 , one end is fixed on one of the first supports, and the other end passes through the first connecting frame 36 and is fixed on the other first support.

The first upper floor's large movable pulley 37 and the first lower floor's large movable pulley 38 are respectively in up and down positions and are installed on the left end of the first connecting frame 36 near the side of the support frame 4, and the second upper floor's large movable pulley 39 and the second lower floor's large movable pulley 40 are respectively up and down. The position is installed on the right end of the first connecting frame 36 close to the side of the support frame 4 .

As shown in Figure 6, the second guide rod 42 is located above the first thin hydraulic cylinder 41, and the two ends of the first thin hydraulic cylinder 41 and the second guide rod 42 are respectively fixed on the base plate 1 by two second supports. The second connecting frame 43 is fixed on the middle position of the first thin hydraulic cylinder 41, and the second guide rod 42 passes through the second connecting frame 43, so as to keep the second connecting frame 43 from rotating with the first fine hydraulic cylinder 41; the first upper floor small movable pulley 44 Installed on the left end of the second connection frame 43 away from the side of the capture beam in the upper and lower positions with the first lower floor small movable pulley 45 respectively, and installed in the upper and lower positions of the second upper floor small movable pulley 46 and the second lower floor small movable pulley 47 respectively on the second connection frame 43 away from the right end of one side of the capture beam.

As shown in Figures 7 and 8, the double-layer large fixed pulley block is fixed on the bottom plate 1 through the first pulley seat. The first pulley seat includes a large base 50 and a large cover plate 51 arranged on the upper surface of the large base 50. The upper large fixed pulley 48 and the large fixed pulley 49 of the lower floor are respectively in the upper and lower positions and are installed in the space limited between the large base 50 and the large cover plate 51; It includes a small base 54 and a small cover plate 55 arranged on the upper surface of the small base 54, a cavity defined by 55 between the small base 54 and the small cover plate, and a baffle plate is arranged in the container, which divides the container into two small upper and lower parts. The cavity, the small fixed pulley 52 of the upper floor and the small fixed pulley 53 of the lower floor are respectively in the upper and lower positions and are installed in the upper cavity.

As shown in Figure 3, the first double-layer large fixed pulley 15 and the second double-layer large fixed pulley 18 are respectively located on the front and rear sides of the parallel hydraulic cylinder, and the second capture beam 30 is located between the first track 56 and the second track 57 , the first single-layer large fixed pulley 13 and the third single-layer large fixed pulley 16 are respectively located on the front and rear sides of the second track 57, and the second single-layer large fixed pulley 14 and the fourth single-layer large fixed pulley 17 are respectively located on the first track 56 front and rear sides, the first briquetting block 25 and the second briquetting block 26 are fixed on the base plate 1, and are respectively located at the front and rear sides of the first double-layer large moving pulley block.

One end of the first thick wire rope 5 is at the right end of the second capture beam 30 one side, and one end walks around the lower floor's large fixed pulley 49 and the first lower floor in the second single-layer large fixed pulley 14, the first double-layer large fixed pulley 15 The large movable pulley 38 is fixed in the first briquetting block 25; one end of the second thick steel wire rope 6 is fixed at the left end of a side of the second capture beam 30, and one end goes around the first single-layer large fixed pulley 13 and the first double-layer large fixed pulley. The upper large fixed pulley 48 and the first upper large movable pulley 37 in 15 are fixed in the first briquetting block 25; one end of the third thick steel wire rope 7 is fixed at the left end of the other side of the second capture beam 30 away from the previous side, and one end Go around the lower floor's large fixed pulley 49 and the second lower floor's large movable pulley 40 in the third single-layer large fixed pulley 16, the second double-layer large fixed pulley 18 and be fixed in the second briquetting block 26; The fourth thick steel wire rope 8 one ends are fixed on The second capture beam 30 is away from the right end of the other side of the previous side, and one end walks around the upper floor large fixed pulley 48 and the second upper floor large movable pulley in the fourth single layer large fixed pulley 17, the second double layer large fixed pulley 18 39 is fixed in the second pressing block 26. The second thick steel wire rope 6 is higher than the first thick steel wire rope 5 at the installation position of the second capture beam, and the fourth thick steel wire rope 8 is higher than the third thick steel wire rope 7 at the installation position of the second capture beam.

The first double-layer small fixed pulley 21 and the second double-layer small fixed pulley 24 are respectively located at the front and rear sides of the second thin hydraulic cylinder 41, the first capture beam 29 is located between the first rail 56 and the second rail 57, and the first single Layer small fixed pulley 19 and the third single layer small fixed pulley 22 are respectively located on the front and rear sides of the second track 57, and the second single layer small fixed pulley 20 and the fourth single layer small fixed pulley 23 are respectively located on the front and rear sides of the first track 56 , the third briquetting block 27 and the fourth briquetting block 28 are all fixed on the side plate 2, and are respectively located at the front and rear sides of the first double-layer small movable pulley block.

One end of the first thin steel wire rope 9 is fixed on the right end of the first catch beam 29 one side, and one end walks around the second single-layer small fixed pulley 20, the lower floor small fixed pulley 53 in the first double-layer small fixed pulley 21 and the first lower fixed pulley. Layer small movable pulley 45 is fixed in the 3rd briquetting block 27; The second thin wire rope 10 one ends are fixed on the left end place of the first capture beam 29 one sides, and one end walks around the first single layer small fixed pulley 19, the first double layer small fixed pulley. The upper floor small fixed pulley 52 and the first upper floor small movable pulley 44 in the pulley 21 are fixed in the third briquetting block 27; the third thin wire rope 11 one end is fixed at the left end of the other side of the first capture beam 29 away from the previous side, One end walks around the third single-layer small fixed pulley 22, the lower floor small fixed pulley 53 in the second double-layer small fixed pulley 24 and the second lower floor small movable pulley 47 and is fixed in the fourth briquetting block 28; the fourth thin wire rope 12 is fixed at one end At the right end of the other side of the first capture beam 29 away from the previous side, one end walks around the upper floor small fixed pulley 52 and the second upper floor small fixed pulley 23 in the fourth single layer small fixed pulley 24 and the second upper floor small fixed pulley. The movable pulley 46 is fixed in the fourth pressing block 28 . The second thin steel wire rope 10 is higher than the first thin steel wire rope 9 at the installation position of the first capture beam, the fourth thin steel wire rope 12 is higher than the third thin steel wire rope 11 at the installation position of the first capture beam, and the height of all thin steel wire ropes is higher than Thick steel wire rope.

When the shipborne helicopter lands, the probe rod enters between the first capture beam 29 and the second capture beam 30, and then starts fast capture, as shown in Figure 3; the second thin hydraulic cylinder 41 moves quickly, thereby driving the first capture beam 29 moves quickly to the middle; the first thin hydraulic cylinder 34 in the parallel hydraulic cylinder 3 moves quickly, the rough hydraulic cylinder 33 is in a free floating state, and the first thin hydraulic cylinder 34 drives the thick hydraulic cylinder 33 to move quickly, thereby driving the second capture beam 30 for a quick move toward the middle. After the first capture beam 31 and the second capture beam 30 capture the probe rod and collide together, the first locking hook 31 and the second locking hook 32 lock the first capture beam 29 and the second capture beam 30 so as to realize Fixed shipboard helicopter probe.

After capturing the shipboard helicopter, it is necessary to carry out horizontal alignment of the shipboard helicopter and put it into storage, and then start the slow speed and vigorous alignment. At this time, the first capture beam 29 and the second capture beam 30 and the shipboard helicopter probe rod have been fixed together , only one capture beam needs to move to drive the other capture beam to move; the rough hydraulic cylinder 33 in the parallel hydraulic cylinder 3 works, the first fine hydraulic cylinder 34 is in a free floating state, and the rough hydraulic cylinder 33 drives the first fine hydraulic cylinder 34 Moving at a slow speed, thereby driving the second capture beam 30 and the first capture beam 29 to move slowly to straighten the attitude of the shipborne helicopter until it enters the warehouse.

The above are only specific implementation methods of this application, but the protection scope of this application is not limited thereto. Any changes or replacements within the technical scope disclosed in this application shall be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (7)

1. A transmission system applicable to shipboard helicopter landing aids, characterized in that it comprises a hydraulic device, a support frame and two oppositely arranged capture beams that are slidably connected in the support frame, and the hydraulic device passes through two transmissions. The mechanism respectively drives the two capture beams to move towards or away from each other; Each of the transmission mechanisms includes at least one pair of pulley transmission assemblies respectively connected to both sides of the same capture beam, each of the pulley transmission assemblies includes a rope, a pulley block and a briquetting block, and the movable pulley of the pulley block is arranged on the cylinder of the hydraulic device One end of the rope is connected to one side of the capture beam, and the other end is connected to the pressing block after going around the pulley block; the pulley block includes a first fixed pulley, a second fixed pulley and a fixed pulley arranged in sequence along the winding direction of the rope. The movable pulley, the first fixed pulley and the second fixed pulley are located on the same side of the capture beam, and the axes of the first fixed pulley, the second fixed pulley and the movable pulley are all vertical; the catch beam and the first fixed pulley, the second fixed pulley and the movable pulley And the rope section between the movable pulley and the pressing block is parallel to each other, and the rope section between the first fixed pulley and the second fixed pulley is perpendicular to the remaining rope sections; the height of the rope of one transmission mechanism is higher than that of the other transmission mechanism rope; When the movable pulley of the pulley block reciprocates with the cylinder of the hydraulic device, a pair of ropes connected to both sides of the same capture beam pulls the capture beam connected to it to move. 2. A kind of transmission system that is applicable to shipboard helicopter landing aid device according to claim 1, is characterized in that, also comprises base plate, and described bracing frame and hydraulic device are respectively arranged on the both sides of base plate upper surface; The hydraulic device includes a first fine hydraulic cylinder and a second fine hydraulic cylinder arranged parallel to each other, the reciprocating direction of the first fine hydraulic cylinder and the second fine hydraulic cylinder is parallel to the moving direction of the capture beam, the first fine hydraulic cylinder and the second fine hydraulic cylinder The outer wall of the cylinder barrel of the thin hydraulic cylinder is respectively provided with a first connecting frame and a second connecting frame. They are respectively fixed on the bottom plate through two second supports; the movable pulley of one transmission mechanism is connected to the first connecting frame, and the movable pulley of the other transmission mechanism is connected to the second connecting frame; One side of the first fine hydraulic cylinder and the second fine hydraulic cylinder are respectively provided with a first guide rod and a second guide rod, one end of the first guide rod is fixed on one of the first supports, and the other end passes through the first connecting frame It is fixed on another first support; one end of the second guide rod is fixed on one of the second supports, and the other end passes through the second connecting frame and is fixed on the other second support. 3. A transmission system suitable for landing aids for shipborne helicopters according to claim 2, wherein a coarse hydraulic cylinder is connected in parallel to one side of the first thin hydraulic cylinder, and one end of the coarse hydraulic cylinder It is fixed on one of the first supports, and the other end is fixed on the other first support through the first connecting frame, and the first fine hydraulic cylinder moves synchronously with the coarse hydraulic cylinder. 4. A transmission system suitable for landing aids for shipborne helicopters according to claim 1, wherein at least one locking hook is provided on one of the capturing beams, and at least one locking hook is provided on the other capturing beam. There are uprights that mate with locking hooks. 5. A kind of transmission system applicable to landing aids for shipborne helicopters according to claim 1, characterized in that slide rails are arranged on the opposite inner wall surfaces of the support frame, and the two trapping beams of the two capture beams Both ends are provided with protrusions matched with the slide rails. 6. According to any one of claims 1-5, a transmission system applicable to landing aids for shipborne helicopters, wherein the two transmission mechanisms all include two pairs of pulley transmission assemblies, and two pairs of pulley transmission assemblies The ropes are respectively connected to the left and right ends of the same side of the capture beam, and the height of one of the ropes is lower than that of the other. 7. A transmission system suitable for landing aids for shipborne helicopters according to claim 6, wherein the first fixed pulley and the second fixed pulley are fixed on the bottom plate through a pulley seat.

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