CN111731501A

CN111731501A - Pulley bracket integrated device for unmanned aerial vehicle ejection

Info

Publication number: CN111731501A
Application number: CN202010661098.0A
Authority: CN
Inventors: 李佳兴; 车昭男; 盛团结; 刘海华; 邢帅
Original assignee: Weihai Guangtai Airport Equipment Co Ltd
Current assignee: Weihai Guangtai Airport Equipment Co Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2020-10-02

Abstract

The invention discloses a pulley bracket integration device for unmanned aerial vehicle ejection, which comprises an ejection pulley and an ejection bracket, wherein the ejection pulley comprises a pulley table top, a pulley left side plate and a pulley right side plate, the left end of the pulley table top is fixedly connected with the upper end of the pulley left side plate, the right end of the pulley table top is fixedly connected with the upper end of the pulley right side plate, the ejection bracket is fixed on the pulley table top, the ejection pulley also comprises an angle adjusting mechanism and a roller assembly, and the roller assembly is rotationally connected with the pulley left side plate and the pulley right side plate through the angle adjusting mechanism.

Description

Pulley bracket integrated device for unmanned aerial vehicle ejection

Technical Field

The invention relates to the technical field of unmanned aerial vehicle ejection, in particular to a pulley bracket integration device for unmanned aerial vehicle ejection.

Background

At present, the launching device of the domestic unmanned aerial vehicle adopts rubber band launching, steam hydraulic launching, electromagnetic force launching and the like, the small unmanned aerial vehicle mostly adopts the rubber band launching, and the medium unmanned aerial vehicle mostly adopts steam and electromagnetic force launching. Launch to different weight-class unmanned aerial vehicle, derive different coaster bracket devices, the device can play and carry on unmanned aerial vehicle and move with higher speed in the track together, can release unmanned aerial vehicle fast after terminal unmanned aerial vehicle of track reaches required take-off speed simultaneously. Because different heavy-weight unmanned aerial vehicles bear the acceleration load different, require the device can bear great impact force.

The pulley bracket device used in the prior art comprises an ejection pulley and an ejection bracket, wherein the ejection bracket is fixed on the ejection pulley and used for carrying an unmanned aerial vehicle; launch the bracket and include bracket left side board, bracket right side board, the bracket bottom plate, the spout bracket, the left end of bracket bottom plate and the lower extreme fixed connection of bracket left side board, the right-hand member of bracket bottom plate and the lower extreme fixed connection of bracket right side board, the upper end of bracket left side board, the upper end fixedly connected with spout bracket of bracket right side board, be equipped with the spout that the opening is forward on the spout bracket, in using, insert the spout with round pin axle on the unmanned aerial vehicle lower carriage earlier, make unmanned aerial vehicle fix on coaster bracket device, start unmanned aerial vehicle and pass through the rubber band, steam hydraulic pressure, launch the coaster along the track line of drive such as electromagnetic force, reach behind the speed that unmanned aerial vehicle takes off, brake, launch the coaster braking in the twin.

The existing structure has the following defects: firstly, a track for the unmanned aerial vehicle to take off has a certain inclination angle with a horizontal plane, a row of roller shafts are respectively arranged on two sides of a pulley frame and are fixedly connected with the pulley frame, and rollers roll around the shafts, so that the rollers are not absolutely parallel to the track due to processing and installation, when the pulley moves along the track, the row of rollers cannot be guaranteed to be simultaneously contacted with the track, the condition that the stress of each roller is uneven easily occurs, and the service life of the rollers is influenced; secondly, because the pulley bracket is heavy, the pulley roller bears large load at the moment of acceleration and in the sliding process, and the roller is not uniformly stressed and is easily abraded or damaged, so that the roller replacement frequency is increased, the use of the pulley bracket integrated device is influenced, and the maintenance cost of the device is increased; third, the coaster bracket that prior art used is heavier, carries on that unmanned aerial vehicle wants to accelerate to unmanned aerial vehicle's take-off speed when moving in the track and need consume great energy, influences launching system's energy utilization.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the pulley bracket integrated device for the ejection of the unmanned aerial vehicle, which has the advantages of simple and compact structure, strong bearing capacity and difficult damage.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides an unmanned aerial vehicle launches uses coaster bracket integrated device, is including launching the coaster, launching the bracket, launch the coaster and include coaster mesa, coaster left side board, coaster right side board, coaster mesa left end and coaster left side board upper end fixed connection, right-hand member and coaster right side board upper end fixed connection, launch the bracket and fix on the coaster mesa, its characterized in that: the ejection pulley further comprises an angle adjusting mechanism and a roller assembly, wherein the roller assembly is rotatably connected with the left side plate of the pulley and the right side plate of the pulley through the angle adjusting mechanism, so that the angle of the roller assembly can be adjusted under the action of the angle adjusting mechanism, uniform stress and no unbalance loading of each roller are ensured, and the service life of each roller is prolonged.

The invention relates to a roller component, which comprises roller shafts, rollers and a first shaft retainer ring, wherein an angle adjusting mechanism comprises a roller support frame, a support shaft, a self-locking nut and a fixed bushing, one side of the roller support frame is fixedly connected with at least two roller shafts at equal intervals along the length direction of the roller support frame, the middle part of the other side of the roller support frame is fixedly connected with the support shaft, the rollers are rotatably sleeved on the roller shafts and are clamped and limited by the first shaft retainer ring, the front end and the rear end of a left side plate of a pulley and the front end and the rear end of a right side plate of the pulley are respectively and symmetrically provided with a first shaft hole, the fixed bushing is fixed in the first shaft hole, the support shaft penetrates through the fixed bushing and is in threaded connection with the self-locking nut, and the support shaft is rotatably connected with the fixed bushing, so that.

The ejection bracket comprises a bracket left side plate, a bracket right side plate, a bracket front connecting rod, a bracket rear connecting rod and a sliding groove bracket, wherein the left end of the bracket front connecting rod is fixedly connected with the front side of the lower end of the bracket left side plate, the right end of the bracket front connecting rod is fixedly connected with the front side of the lower end of the bracket right side plate, the left end of the bracket rear connecting rod is fixedly connected with the rear side of the lower end of the bracket left side plate, the right end of the bracket rear connecting rod is fixedly connected with the rear side of the lower end of the bracket right side plate, the ejection bracket is U-shaped as a whole, the bracket front connecting rod and the bracket rear connecting rod are fixedly connected with a pulley table top, the upper ends of the bracket left side plate and the bracket right side plate are respectively fixedly connected with the lower end of the sliding groove.

The left side plate and the right side plate of the bracket are of trapezoidal structures with narrow tops and wide bottoms, the middle parts of the left side plate and the right side plate are hollowed out and are arranged to be of trapezoidal structures, the stability of the left side plate and the right side plate of the bracket is ensured, the large overload in the launching process can be borne, the left side plate and the right side plate of the bracket are not prone to deformation, the middle parts of the left side plate and the right side plate of the bracket are.

The bracket front connecting rod and the bracket rear connecting rod adopt circular tube structures and are arranged into circular tube structures, so that the bracket front connecting rod and the bracket rear connecting rod have good torsion resistance, can bear larger overload and can reduce the sliding resistance in the moving process of the pulley bracket integrated device.

The ejection pulley also comprises a traction mechanism, the traction mechanism comprises a traction left side plate, a traction right side plate, a traction shaft and a retaining ring for a second shaft, the traction left side plate and the traction right side plate are positioned between the pulley left side plate and the pulley right side plate, the upper end of the traction left side plate and the upper end of the traction right side plate are respectively and fixedly connected with a pulley table surface, second shaft holes for the traction shaft to pass through are respectively and symmetrically arranged at the front end and the rear end of the traction left side plate and the traction right side plate, the two ends of the traction shaft respectively pass through the symmetrically arranged second shaft holes and are clamped and limited by the retaining ring for the second shaft, the traction shaft is used for fixing the traction rope, and the acceleration and the recovery of the pulley bracket integrated device in the track are.

The ejection pulley also comprises a pulley guide mechanism, the pulley guide mechanism comprises a guide wheel, a guide wheel shaft, a retaining ring for a third shaft, a limiting plate and a limiting nut, a plurality of strip holes are symmetrically arranged on the left side and the right side of the pulley table, the guide wheel is arranged below the strip holes on the pulley table, the guide wheel is rotatably sleeved at the lower end of the guide wheel shaft and is clamped and limited by the retaining ring for the third shaft, the upper end of the guide wheel shaft penetrates through the strip holes, a shaft shoulder is arranged on the guide wheel shaft, the upper end surface of the shaft shoulder is contacted with the lower end surface of the pulley table, an opening is arranged on one side of the guide wheel shaft, the limiting plate is arranged at the upper end of the strip holes on the pulley table and is provided with a limiting groove matched with the opening on the guide wheel shaft, the limiting plate is fixedly connected with the pulley table, the upper end of the guide wheel shaft is in threaded connection with the, the limiting groove of the limiting plate is abutted with the opening of the guide wheel shaft to limit the guide wheel shaft to rotate, so that reliable limiting is realized, and in the running process, the running process of the tackle is always positioned in the middle of the guide rail through the guiding effect of the guide wheel, so that the straight line and stable acceleration of the tackle are ensured.

The chute bracket comprises a front left chute bracket, a front right chute bracket, a rear left chute bracket and a rear right chute bracket, wherein the front left chute bracket is arranged at the front end of a left side plate of the bracket, the front right chute bracket is arranged at the front end of a right side plate of the bracket, the front left chute bracket and the front right chute bracket are symmetrically arranged in parallel, the rear left chute bracket is arranged at the rear end of the left side plate of the bracket, the rear right chute bracket is arranged at the rear end of the right side plate of the bracket, the rear left chute bracket and the rear right chute bracket are symmetrically arranged in parallel, the front left chute bracket is fixedly connected with the outer side of the upper end of the left side plate of the bracket, the rear left chute bracket is fixedly connected with the inner side of the upper end of the left side plate of the bracket, the front right chute bracket is fixedly connected with the outer side of the upper end of the right side plate of the bracket, so that a lower bracket at the rear side of the unmanned aerial vehicle does not touch the, the takeoff of the unmanned aerial vehicle is not influenced.

According to the invention, the front left chute bracket, the front right chute bracket, the rear left chute bracket and the rear right chute bracket are respectively provided with the shearing pin holes, the shearing pin penetrates through the shearing pin holes on the lower bracket of the airplane and the chute bracket, the chute bracket and the lower bracket of the airplane are fixed by using the shearing pin, so that the unmanned aerial vehicle can be ensured not to be separated from the chute bracket by shaking or accident in the acceleration process, until the braking moment, the shearing pin is broken, and the unmanned aerial vehicle is separated from the chute bracket to take off.

The ejection pulley and the ejection bracket are made of aluminum alloy materials, so that the lightweight design is met, and the energy utilization rate of an emission system is improved.

The invention has the beneficial effects that: by arranging the roller assemblies, the roller support frames can be ensured to swing up and down in a small amplitude under severe working conditions, the rollers are uniformly stressed and are not subjected to unbalance loading, and the service life is prolonged; by arranging the pulley guide mechanism, the running process of the pulley is always positioned in the middle of the guide rail, so that the pulley is ensured to be accelerated linearly and stably; the left side plate and the right side plate of the bracket are arranged into a trapezoidal structure, so that the stability of the left side plate and the right side plate of the bracket is ensured, large overload in the launching process can be borne, the left side plate and the right side plate of the bracket are not easy to deform, and the middle parts of the left side plate and the right side plate of the bracket are arranged in a hollow manner, so that the self weight of the ejection bracket can be reduced; the bracket front connecting rod and the bracket rear connecting rod adopt circular tube structures, so that the torsion resistance is good, large overload can be borne, and the sliding resistance can be reduced; the structure setting of spout bracket is so that when unmanned aerial vehicle deviates from the spout bracket, the lower carriage of unmanned aerial vehicle rear side can not touch preceding left spout bracket and preceding right spout bracket, can not influence unmanned aerial vehicle's taking off.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a side view of the present invention.

Fig. 5 is a front view of the ejection trolley of the present invention.

Fig. 6 is a top view of the ejection trolley of the present invention.

Fig. 7 is a sectional view a-a of fig. 5.

Fig. 8 is a partial sectional view B-B of fig. 6.

Fig. 9 is a schematic structural diagram of the roller support frame.

Fig. 10 is a schematic view of a guide axle construction.

Fig. 11 is a front view of the invention in connection with a drone.

Fig. 12 is a side view of the present invention in connection with a drone (including a track set).

Fig. 13 is a partial view of fig. 11.

Reference numerals: ejection pulley-1, pulley table-board-101, pulley left-side board-102, pulley right-side board-103, roller support-104, roller shaft-105, roller-106, first shaft retainer-107, support shaft-108, self-locking nut-109, fixed bushing-110, ejection bracket-2, bracket left-side board-201, bracket right-side board-202, bracket front connecting rod-203, bracket rear connecting rod-204, chute bracket-205, front left chute bracket-2051, front right chute bracket-2052, rear left chute bracket-2053, rear right chute bracket-2054, chute-206, shearing pin hole-207, traction mechanism-3, traction left-side board-301, traction right-side board-302, traction shaft-303, The device comprises a second shaft retainer ring-304, a pulley guide mechanism-4, a guide wheel-401, a guide wheel shaft-402, a shaft shoulder-403, a third shaft retainer ring-404, a limiting plate-405, a limiting nut-406, a strip hole-407, a brake plate-5, an unmanned aerial vehicle lower support-6, a pin shaft-601, a split pin-602, a shear pin-603, an unmanned aerial vehicle-7, a track-8 and a fixing bolt-9.

Detailed Description

The invention is described below with reference to the accompanying drawings and examples.

As shown in fig. 4, 5, 7, and 9, an unmanned aerial vehicle catapulting trolley bracket integrated device includes an catapulting trolley 1 and an catapulting bracket 2, the catapulting trolley includes a trolley table-board 101, a trolley left side board 102, and a trolley right side board 103, the left end of the trolley table-board 101 is fixedly connected to the upper end of the trolley left side board 102, and the right end is fixedly connected to the upper end of the trolley right side board 103, in this embodiment, the trolley table-board is fixedly connected to the trolley left side board and the trolley right side board by welding, or by bolts, etc., the catapulting bracket 2 is fixed to the trolley table-board 101, the catapulting trolley further includes an angle adjusting mechanism and a roller assembly, the roller assembly is rotatably connected to the trolley left side board and the trolley right side board by the angle adjusting mechanism, so that the angle of the roller assembly can be adjusted under the action of, the service life of the roller is prolonged.

The roller component comprises roller shafts 105, rollers 106 and a first shaft retainer ring 107, the angle adjusting mechanism comprises a roller support frame 104, a support shaft 108, a self-locking nut 109 and a fixed bushing 110, one side of the roller support frame 104 is fixedly connected with at least two roller shafts 105 at equal intervals along the length direction, the middle part of the other side of the roller support frame is fixedly connected with the support shaft 108, the rollers 106 are rotatably sleeved on the roller shafts 105 and are clamped and limited by the first shaft retainer ring 107, the front end and the rear end of the left side plate 102 and the front end and the rear end of the right side plate 103 of the pulley are respectively and symmetrically provided with a first shaft hole, the fixed bushing 110 is fixed in the first shaft hole, the support shaft 108 penetrates through the fixed bushing 110 and is in threaded connection with the self-locking nut 109, the support shaft 108 is rotatably connected with the fixed bushing 110, so that the roller support frame can swing, the eccentric load is avoided, and the service life is prolonged. In the embodiment, the roller assemblies are symmetrically arranged at the front end and the rear end of the left side plate and the right side plate of the pulley, each roller assembly is provided with four rollers, each roller is provided with a bearing, the rollers can be connected with the roller shafts through the bearings, the number of the rollers and the roller shafts is determined according to actual requirements, and the roller support frame, the roller shafts and the support shafts are fixed through welding.

As shown in fig. 3, the ejection bracket 2 comprises a bracket left side plate 201, a bracket right side plate 202, a bracket front connecting rod 203, a bracket rear connecting rod 204 and a chute bracket 205, the left end of the bracket front connecting rod 203 is fixedly connected with the front side of the lower end of the bracket left side plate 201, the right end is fixedly connected with the front side of the lower end of the bracket right side plate 202, the left end of the bracket rear connecting rod 204 is fixedly connected with the rear side of the lower end of the bracket left side plate 201, the right end is fixedly connected with the rear side of the lower end of the bracket right side plate 202, the overall shape of the ejection bracket 2 is U-shaped, the bracket front connecting rod 203 and the bracket rear connecting rod 204 are fixedly connected with the pulley table surface 101, the upper ends of the bracket left side plate 201 and the bracket right side plate 202 are respectively fixedly connected with the lower end of a chute bracket 205, the upper end of the chute bracket 205 is provided with a chute 206 with a forward opening, the weight of the ejection bracket is reduced by arranging the connecting rod to support the left side plate and the right side plate of the bracket. In the embodiment, the bracket front connecting rod and the bracket rear connecting rod are fixed with the bracket left side plate and the bracket right side plate by welding, and the bracket front connecting rod and the bracket rear connecting rod are fixed with the pulley table surface by fixing bolts 9.

Bracket left side board 201, bracket right side board 202 are the down wide trapezium structure of upper narrow, and the trapezium structure is set to in the middle part fretwork, ensure the stability of bracket left side board, bracket right side board, can bear the big overload in the emission process, and non-deformable, middle part fretwork setting can alleviate ejection bracket self weight.

Connecting rod 203 before the bracket, connecting rod 204 behind the bracket adopt the pipe structure, set to the pipe structure, and the resistance to torsion is good, can bear great overload to can reduce the sliding resistance of coaster bracket integrated device removal in-process.

As shown in fig. 4 and 7, the ejection trolley further comprises a traction mechanism, the traction mechanism 3 comprises a traction left side plate 301, a traction right side plate 302, a traction shaft 303 and a retaining ring 304 for a second shaft, the traction left side plate and the traction right side plate are located between the trolley left side plate and the trolley right side plate, the upper end of the traction left side plate 301 and the upper end of the traction right side plate 302 are respectively and fixedly connected with the trolley table-board 101, second shaft holes for the traction shaft 303 to pass through are respectively and symmetrically formed in the front end and the rear end of the traction left side plate 301 and the traction right side plate 302, the two ends of the traction shaft respectively pass through the second shaft holes which are symmetrically formed and are clamped and limited through the retaining ring 304 for the second shaft, the traction shaft is used for fixing the traction rope, and the accelerated movement and the recovery of the trolley bracket. In the embodiment, the traction left side plate and the traction right side plate are fixedly connected with the table top of the pulley in a welding mode and can also be fixed in a bolt mode and the like.

As shown in fig. 6, 8 and 10, the ejection trolley further includes a trolley guide mechanism 4, the trolley guide mechanism 4 includes a guide wheel 401, a guide wheel shaft 402, a third shaft retainer 404, a limiting plate 405, and a limiting nut 406, the left and right sides of the trolley table 101 are symmetrically provided with a plurality of elongated holes 407, the guide wheel 401 is disposed below the elongated holes of the trolley table 101, the guide wheel is disposed parallel to the trolley table, one side of the guide wheel is exposed outside the trolley table and is used for contacting with the edge of the rail, the rail in this embodiment is an i-shaped rail, the guide wheel 401 is rotatably sleeved on the lower end of the guide wheel shaft 402 and is clamped and limited by the third shaft retainer 404, the upper end of the guide wheel shaft 402 penetrates through the elongated holes, the guide wheel shaft 402 is provided with a shoulder 403, the upper end surface of the shoulder contacts with the lower end surface of the trolley table, and is provided with a shoulder to ensure that the guide wheel, one side of direction shaft is equipped with the opening, the limiting plate is located the upper end in pulley mesa rectangular hole and is equipped with the spacing groove with the epaxial opening matched with of direction shaft, limiting plate 405 and pulley mesa 101 fixed connection, direction shaft 402 upper end and limit nut 406 threaded connection make its and track edge contact through the position of adjustment leading wheel to the spacing groove through the limiting plate contradicts with the opening of direction shaft and restricts the direction shaft and rotate, realizes reliable spacing, and in the operation process, through the guide effect of leading wheel, make the coaster operation process be in the guide rail middle part all the time, ensure that the coaster straight line steadily accelerates. In the embodiment, the two sides of the front end, the middle part and the rear end of the pulley platform are symmetrically provided with the long holes. In the embodiment, the guide wheel is provided with a bearing, and the guide wheel can be sleeved with the guide wheel shaft through the bearing.

As shown in fig. 3 and 12, the chute bracket 205 includes a front left chute bracket 2051, a front right chute bracket 2052, a rear left chute bracket 2053, and a rear right chute bracket 2054, the front left chute bracket 2051 is disposed at the front end of the bracket left side plate 201, the front right chute bracket 2052 is disposed at the front end of the bracket right side plate 202, the front left chute bracket 2051 and the front right chute bracket 2052 are symmetrically disposed in parallel, the rear left chute bracket 2053 is disposed at the rear end of the bracket left side plate 201, the rear right chute bracket 2054 is disposed at the rear end of the bracket right side plate 202, the rear left chute bracket 2053 and the rear right chute bracket 2054 are symmetrically disposed in parallel, the front left chute bracket 2051 is fixedly connected to the outer side of the upper end of the bracket left side plate 201, the rear left chute bracket 2053 is fixedly connected to the inner side of the upper end of the bracket left side plate 201, the front right chute bracket 2052 is fixedly connected to the outer side of the upper end of the bracket right side plate 202, the rear right chute bracket 205, so that when unmanned aerial vehicle deviates from the spout bracket, the lower bracket at the rear side of the unmanned aerial vehicle can not touch the front left spout bracket and the front right spout bracket, and the takeoff of the unmanned aerial vehicle can not be influenced. In this embodiment, the front left chute bracket, the front right chute bracket and the bracket left side plate are fixedly connected through bolts, the rear left chute bracket, the rear right chute bracket and the bracket right side plate are fixedly connected through bolts, and the chute bracket, the bracket left side plate and the bracket right side plate can also be fixed through welding and other modes.

As shown in fig. 2, 11 and 13, the front left chute bracket 2051, the front right chute bracket 2052, the rear left chute bracket 2053 and the rear right chute bracket 2054 are respectively provided with a shearing pin hole 207, the shearing pin 603 passes through the shearing pin holes on the lower aircraft bracket and the chute bracket, the chute bracket is fixed with the lower aircraft bracket by using the shearing pin, so that the unmanned aerial vehicle can be ensured to shake or be accidentally not separated from the chute bracket in the acceleration process until the braking moment, the shearing pin is broken, and the unmanned aerial vehicle and the chute bracket take off separately.

The ejection pulley and the ejection bracket are made of aluminum alloy materials, so that the lightweight design is met, and the energy utilization rate of the emission system is improved.

As shown in fig. 12 (the position of the shear pin is not marked in fig. 12), in this embodiment, the lower end of the unmanned aerial vehicle 7 is fixedly connected with an unmanned aerial vehicle lower bracket 6 matched with the chute bracket, the unmanned aerial vehicle lower bracket comprises a front left first vertical plate, a front left second vertical plate, a front right first vertical plate, a front right second vertical plate, a rear left first vertical plate, a rear right first vertical plate, and a rear right second vertical plate, the front left first vertical plate and the front left second vertical plate penetrate through a pin 601 and are fixed through a cotter pin 602, the front right first vertical plate and the front right second vertical plate penetrate through a pin 601 and are fixed through a cotter pin 602, the rear left first vertical plate and the rear left second vertical plate penetrate through a pin 601 and are fixed through a cotter pin 602, the pin of the front left first vertical plate and the rear right second vertical plate penetrate through a pin 601 and are fixed through a cotter pin 602, when in use, the pin of the front left first vertical plate and the front left second vertical plate are, the pin shafts of the front right first vertical plate and the front right second vertical plate are inserted into the sliding grooves of the front right sliding groove bracket, the pin shafts of the rear left first vertical plate and the rear left second vertical plate are inserted into the sliding grooves of the rear left sliding groove bracket, and the pin shafts of the rear right first vertical plate and the rear right second vertical plate are inserted into the sliding grooves of the rear right sliding groove bracket.

As shown in fig. 1 and 7, in this embodiment, a brake plate 5 is further disposed below the ejection trolley, the brake plate 5 is fixedly connected with the ejection trolley, in this embodiment, the ejection trolley is connected in a welding manner, when the ejection trolley drives the unmanned aerial vehicle to slide on the track 8, braking is performed through the brake plate, and at the moment of braking, the lower support of the unmanned aerial vehicle smoothly comes out of the chute support plate and reliably and stably takes off. The ejection pulley can be braked in various ways, and in the embodiment, a brake plate is adopted for braking, and blocking braking and the like can also be adopted.

When the ejection device is installed, the ejection bracket is fixed on the ejection pulley through the fixing bolt, the left-right distance between the ejection pulley and the inner side of the track is adjusted, after the position is determined, the position of the guide wheel is adjusted, the guide wheel is in contact with the edge of the track, the end face of the limiting plate limiting groove is abutted against the opening of the guide wheel shaft to limit the rotation of the guide wheel shaft, the limiting nut is screwed, and if the position of the limiting plate limiting groove cannot be reliably matched with the opening of the guide wheel shaft, the contact surface between the limiting groove and the guide wheel shaft can be milled flat. When the ejection pulley slides, the running process of the ejection pulley is always positioned in the middle of the track under the guiding action of the guide wheels, so that the ejection pulley is ensured to be accelerated linearly and stably. After the position adjustment of ejection coaster is good, the round pin axle of unmanned aerial vehicle lower carriage inserts the spout through the notch of spout in to insert the shearing round pin through the shearing pinhole on the unmanned aerial vehicle lower carriage, the shearing pinhole on the spout layer board, prevent that unmanned aerial vehicle from shaking or unexpected throw off the spout layer board at the in-process with higher speed.

When the unmanned aerial vehicle launching device is used, an engine of the unmanned aerial vehicle is started, the engine generates thrust, the unmanned aerial vehicle tends to move forwards, a traction rope on a traction shaft is driven by an ejection device such as a rubber band, steam hydraulic pressure and electromagnetic force to pull an ejection pulley to move along a track in an accelerating mode, the unmanned aerial vehicle obtains a certain launching speed at the tail end of the ejection track, a brake plate brakes, a shear pin breaks at the moment of braking, a lower support of the unmanned aerial vehicle is separated from a sliding groove support plate, and the unmanned aerial vehicle successfully takes off. The ejection pulley and the ejection bracket are recovered by pulling a traction rope at the rear end of the ejection pulley after the unmanned aerial vehicle takes off.

Claims

1. The utility model provides an unmanned aerial vehicle launches uses coaster bracket integrated device, is including launching the coaster, launching the bracket, launch the coaster and include coaster mesa, coaster left side board, coaster right side board, coaster mesa left end and coaster left side board upper end fixed connection, right-hand member and coaster right side board upper end fixed connection, launch the bracket and fix on the coaster mesa, its characterized in that: the ejection pulley further comprises an angle adjusting mechanism and a roller assembly, and the roller assembly is rotatably connected with the pulley left side plate and the pulley right side plate through the angle adjusting mechanism.

2. The carrier frame integrated device for unmanned aerial vehicle ejection according to claim 1, wherein: the roller component comprises roller shafts, rollers and first shaft retainer rings, the angle adjusting mechanism comprises a roller support frame, a support shaft, a self-locking nut and a fixed bushing, at least two roller shafts are fixedly connected to one side of the roller support frame at equal intervals along the length direction of the roller support frame, the support shaft is fixedly connected to the middle of the other side of the roller support frame, the rollers are rotatably sleeved on the roller shafts and are limited through the first shaft retainer rings in a clamping mode, first shaft holes are symmetrically formed in the front end and the rear end of the left side plate of the pulley and the front end and the rear end of the right side plate of the pulley respectively, the fixed bushing is fixed in the first shaft holes, the support shaft penetrates through the fixed bushing and is in threaded.

3. The carrier assembly device for unmanned aerial vehicle ejection as claimed in claim 1 or 2, wherein: the ejection bracket comprises a bracket left side plate, a bracket right side plate, a bracket front connecting rod, a bracket rear connecting rod and a chute bracket, the left end of the bracket front connecting rod is fixedly connected with the front side of the lower end of the bracket left side plate, the right end of the bracket front connecting rod is fixedly connected with the front side of the lower end of the bracket right side plate, the left end of the bracket rear connecting rod is fixedly connected with the rear side of the lower end of the bracket left side plate, the right end of the bracket rear connecting rod is fixedly connected with the rear side of the lower end of the bracket right side plate, the ejection bracket is U-shaped, the bracket front connecting rod, the bracket rear connecting rod and the pulley table board are fixedly connected, the upper ends of the bracket left side plate and the bracket.

4. The carrier frame assembly for ejection of unmanned aerial vehicles of claim 3, wherein: the bracket left side board and the bracket right side board are of a trapezoidal structure with a narrow upper part and a wide lower part, and the middle part of the trapezoidal structure is hollow.

5. The carrier frame assembly for ejection of unmanned aerial vehicles of claim 4, wherein: the front connecting rod of the bracket and the rear connecting rod of the bracket adopt circular tube structures.

6. The carrier frame assembly for unmanned aerial vehicle ejection as claimed in claim 1, 2, 4 or 5, wherein: the ejection pulley further comprises a traction mechanism, the traction mechanism comprises a traction left side plate, a traction right side plate, a traction shaft and a retaining ring for a second shaft, the traction left side plate and the traction right side plate are located between the pulley left side plate and the pulley right side plate, the upper end of the traction left side plate and the upper end of the traction right side plate are fixedly connected with the pulley table board respectively, the front end and the rear end of the traction left side plate and the front end and the rear end of the traction right side plate are symmetrically provided with second shaft holes for the traction shaft to pass through respectively, and the two ends of the traction shaft are connected with the retaining ring for the second shaft in a clamping mode and are.

7. The carrier frame assembly for unmanned aerial vehicle ejection as claimed in claim 1, 2, 4 or 5, wherein: the ejection pulley further comprises a pulley guide mechanism, the pulley guide mechanism comprises a guide wheel, a guide wheel shaft, a third shaft retainer ring, a limiting plate and a limiting nut, a plurality of strip holes are symmetrically formed in the left side and the right side of the pulley table board, the guide wheel is arranged below the strip holes in the pulley table board, the guide wheel is rotatably sleeved at the lower end of the guide wheel shaft and is limited through the third shaft retainer ring in a clamping mode, the strip holes are penetrated out of the upper end of the guide wheel shaft, a shaft shoulder is arranged on the guide wheel shaft, the upper end face of the shaft shoulder is in contact with the lower end face of the pulley table board, an opening is formed in one side of the guide wheel shaft, the limiting plate is arranged at the upper end of the strip holes in the pulley table board and is provided with a limiting groove matched with the opening in the guide wheel shaft, the limiting plate is.

8. The carrier frame assembly for ejection of unmanned aerial vehicles of claim 3, wherein: the spout bracket includes preceding left spout bracket, preceding right spout bracket, back left spout bracket, back right spout bracket, the front end of bracket left side board is located to preceding left spout bracket, and the front end of bracket right side board is located to preceding right spout bracket, preceding left spout bracket sets up with preceding right spout bracket parallel symmetry, the rear end of bracket left side board is located to back left spout bracket, and the rear end of bracket right side board is located to back right spout bracket, back left spout bracket sets up with back right spout bracket parallel symmetry, preceding left spout bracket and bracket left side board upper end outside fixed connection, back left spout bracket and the inboard fixed connection in bracket left side board upper end, preceding right spout bracket and bracket right side board upper end outside fixed connection, back right spout bracket and the inboard fixed connection in bracket right side board upper end.

9. The carrier frame assembly for ejection of unmanned aerial vehicles of claim 8, wherein: and the front left sliding groove bracket, the front right sliding groove bracket, the rear left sliding groove bracket and the rear right sliding groove bracket are respectively provided with a shearing pin hole.

10. A carrier frame assembly for ejection of drones as claimed in claim 1, 2, 4, 5, 8 or 9, wherein: the ejection pulley and the ejection bracket are made of aluminum alloy materials.