CN205293070U - A device that takes off and land for small -size unmanned vehicles - Google Patents

Abstract

The utility model provides a device that takes off and land for small -size unmanned vehicles, including outer panel (1), interior plate (2), rear wheel (6), front wheel (5), front -wheel steer steering wheel (12) and shaft fork subassembly. The rear wheel successively conducts to the fuselage main structure through the two curb plates of undercarriage, vertical tail connecting piece in the impact that receives in the twinkling of an eye of descending as the bearing wheel, has better shock attenuation effect, the connecting piece of steering wheel and front wheel has also been regarded as to each annex between outer panel and interior plate when providing the supporting force of two curb plates, has improved the effective utilization to structural component, has reduced the use of extra connecting piece, also has to subtract heavy effect, has stamped lightening core, the effectual structure weight that has reduced in curb plate rear portion intensity part more than needed simultaneously, and the design of shaft fork subassembly has better intensity and better manufacturability to greatly save the quantity of connecting piece, reduced the weight of the fork subassembly that takes off and land.

Description

A kind of lifting gear for small-sized unmanned aircraft

Technical field

This utility model relates to small-sized unmanned aircraft landing-gear structural design field, is specially a kind of lifting gear for small-sized unmanned aircraft.

Background technology

In the design process of unmanned plane, for undercarriage, require its lightweight construction on the one hand, be in particular in smart structural design, rationally distributed, material selects suitable, the enormous impact brought when also wanting to undertake aircraft landing on the other hand, is in particular in that undercarriage overall structure and wheel fork coordinate place can bear the shock loading on when aircraft lands and ground with wheel shaft. Accomplish to meet unmanned plane to the functional requirement of undercarriage and harsh weight configuration index, in the global design process of the transposition that rises and falls, under the premise guaranteeing undercarriage strength and stiffness, the simple in construction accomplishing undercarriage to be made every effort to, perfect performance, and reach the lightest construction weight.

In the design process of certain novel unmanned plane, owing to this type unmanned plane have employed below fuselage with double fins, undercarriage is connected to the version of fuselage by vertical tail, and therefore conventional landing gear structure form cannot meet design requirement, it is necessary to designs a kind of novel landing gear mechanism. In this landing gear mechanism, in order to meet weight indicator, undercarriage main element and the material that in wheel fork assembly, wheel fork adopts are the duralumin of lighter in weight, and wheel shaft is owing to needing to bear huge shock loading, need to adopt No. 45 steel that rigidity and intensity are good.

For the connection of wheel fork and wheel shaft, traditional design is too much due to additional connector, considerably increases the weight of wheel fork assembly. In order to alleviate weight, in some designs wheel fork and wheel shaft are connected as a single entity, thus controlling the rotation of undercarriage front-wheel. But owing to wheel fork and wheel shaft are different materials here, it is impossible to by being welded into one, so additional connector must be adopted to make its fixing connection.

Summary of the invention

In order to meet undercarriage complete function, the designing requirement of lightweight high intensity, wheel fork is overcome to be connected the contradiction with lightweight packages with wheel shaft high intensity, the utility model proposes a kind of lifting gear for small-sized unmanned aircraft, lightweight packages and there is the good load-carrying ability that withstands shocks.

The technical solution of the utility model is:

Described a kind of lifting gear for small-sized unmanned aircraft, it is characterised in that: include outer panel (1), interior plate (2), trailing wheel (6), front-wheel (5), front-wheel steer steering wheel (12) and wheel shaft wheel fork assembly;

Outer panel (1), interior plate (2) are arranged in parallel, it is connected by side plate adnexa (15), front wheel members (7) and steering wheel adnexa between outer panel (1) with interior plate (2), forms the main body supporting structure of lifting gear; Described main body supporting structure is fixed with vertical tail connector, for being connected with vertical tail below small-sized unmanned aircraft fuselage;

It is directly connected to by hind axle and trailing wheel (6) in the middle part of main body supporting structure;

The anterior steering wheel adnexa (10) of main body supporting structure upper fixed installation front-wheel steer steering wheel (12), the steering wheel connecting rod (13) of front-wheel steer steering wheel (12) is connected with wheel shaft (4) end in wheel shaft wheel fork assembly by cranking arm, and front-wheel steer steering wheel (12) is rotated by steering wheel connecting rod (13) and drive wheel shaft (4) of cranking arm;

Wheel shaft (4) coordinates through front wheel members (7) with the wheel fork (3) of wheel shaft wheel fork assembly; The end design that wheel shaft (4) coordinates with wheel fork (3) has disk, and in disc face, design has non-circular boss, and has screwed hole on raised head face; The joint face that wheel fork (3) coordinates with wheel shaft (4) has and non-circular boss size, through hole that shape is identical; When wheel shaft (4) coordinates with wheel fork (3), non-circular boss inserts in described through hole, and is provided with the screw (16) of pad in described screwed hole, by wheel shaft (4) and wheel fork (3) fastening; Wheel fork (3) is connected with front-wheel (5) by front axle;

Rear portion steering wheel adnexa (11) of main body supporting structure upper fixed installation rudder steering wheel (14); Rudder steering wheel (14) controls the rudder below small-sized unmanned aircraft fuselage on vertical tail.

Further preferred version, described a kind of lifting gear for small-sized unmanned aircraft, it is characterised in that: the Strength surplus position at outer panel (1) and interior plate (2) rear portion has multiple circular lightening core.

Beneficial effect

Lifting gear of the present utility model has the advantage that

1, in motion, the control of the sliding trajectory to aircraft and lateral stability can be improved in the taxiing procedures taken off and land;

2, in damping, the trailing wheel as BOGEY WHEEL is successively conducted to fuselage main structure by undercarriage dual-sided board, vertical tail connector in the impact suffered by landing moment, has good damping effect;

3, in configuration aspects, the each adnexa of undercarriage side sheet room has also served as the connector of steering wheel and front-wheel while providing the supporting force to dual-sided board, improve the effective utilization to structure member, decrease the use of extra connector, also there is the effect of loss of weight, stamp lightening core at side plate rear strength flap portion simultaneously, effectively reduce construction weight;

4, at manufacture view, its simple in construction, material is common, and member profile is succinct, it is easy to processing, assembles up convenient and swift simultaneously, it is easy to maintenance and replacing.

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by practice of the present utility model.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:

Fig. 1: be this utility model undercarriage overall construction drawing;

Fig. 2: be the structure chart of this utility model assembly;

Fig. 3: be this utility model connecting shaft view;

Fig. 4: be this utility model wheel fork view;

Wherein: 1, outer panel; 2, interior plate; 3, wheel fork; 4, wheel shaft; 5, front-wheel;6, trailing wheel; 7, front wheel members; 8, front vertical tail connector; 9, rear vertical tail connector; 10, anterior steering wheel adnexa; 11, rear portion steering wheel adnexa; 12, front-wheel steer steering wheel; 13, steering wheel connecting rod; 14, rudder steering wheel; 15, side plate adnexa; 16, screw.

Detailed description of the invention

Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

This utility model is for the take-off and landing device designed with the Novel small-sized unmanned vehicle of double fins below fuselage, as it is shown in figure 1, the lifting gear in the present embodiment includes outer panel (1), interior plate (2), trailing wheel (6), front-wheel (5), front-wheel steer steering wheel (12) and wheel shaft wheel fork assembly.

Outer panel (1), interior plate (2) are arranged in parallel, it is connected support by side plate adnexa (15), front wheel members (7), anterior steering wheel adnexa (10) and rear portion steering wheel adnexa (11) between outer panel (1) with interior plate (2), forms the main body supporting structure of lifting gear; Described main body supporting structure is fixed with front vertical tail connector (8) and rear vertical tail connector (9), for being connected with vertical tail below small-sized unmanned aircraft fuselage, to support fuselage.

Being directly connected to by hind axle and trailing wheel (6) in the middle part of main body supporting structure, trailing wheel (6) is main BOGEY WHEEL.

The anterior steering wheel adnexa (10) of main body supporting structure upper fixed installation front-wheel steer steering wheel (12), is used for controlling front-wheel steer. The steering wheel connecting rod (13) of front-wheel steer steering wheel (12) is connected with wheel shaft (4) end in wheel shaft wheel fork assembly by cranking arm, and front-wheel steer steering wheel (12) is rotated by steering wheel connecting rod (13) and drive wheel shaft (4) of cranking arm.

Wheel shaft (4) coordinates through front wheel members (7) with the wheel fork (3) of wheel shaft wheel fork assembly, and the matching relationship of wheel shaft wheel fork assembly is as shown in Figure 2. The end design that wheel shaft (4) coordinates with wheel fork (3) has disk, and in disc face, design has non-circular boss, and has screwed hole on raised head face; The joint face that wheel fork (3) coordinates with wheel shaft (4) has and non-circular boss size, through hole that shape is identical; When wheel shaft (4) coordinates with wheel fork (3), non-circular boss inserts in described through hole, it may be achieved wheel shaft (4) drives wheel fork (3) to rotate. In order to wheel fork departs from wheel shaft in preventing aircraft lift-off or advancing, in described screwed hole, it is provided with the screw (16) of pad, by wheel shaft (4) and wheel fork (3) fastening; Wheel fork (3) is connected with front-wheel (5) by front axle.

The design of this wheel shaft wheel fork assembly, compared to traditional fix in wheel shaft lower end one with material and the circular piece that has a hole, a flange is processed again on wheel fork, and utilize the design that wheel fork fixed to be connected by four bolts and nut with the circular steel part of wheel shaft lower end, there is better intensity and better manufacturability, its simple in construction of what is more important simultaneously, traditional structure four bolts of minimum needs and nut could be connected fixing to wheel fork and wheel shaft, this new structure only needs a bolt and pad can realize connecting, this will be greatly saved the quantity of connector, the weight of landing wheel fork assembly will be reduced, this is extremely important for aircraft.

Rear portion steering wheel adnexa (11) of main body supporting structure upper fixed installation rudder steering wheel (14); Rudder steering wheel (14) controls the rudder below small-sized unmanned aircraft fuselage on vertical tail, to control to turn in aircraft flight.

Adopt structure of the present utility model, in motion, the control of the sliding trajectory to aircraft and lateral stability can be improved in the taxiing procedures taken off and land; In damping, the trailing wheel as BOGEY WHEEL is successively conducted to fuselage main structure by undercarriage dual-sided board, vertical tail connector in the impact suffered by landing moment, has good damping effect; In configuration aspects, the each adnexa of undercarriage side sheet room has also served as the connector of steering wheel and front-wheel while providing the supporting force to dual-sided board, improve the effective utilization to structure member, decrease the use of extra connector, also there is the effect of loss of weight, stamp lightening core at side plate rear strength flap portion simultaneously, effectively reduce construction weight; At manufacture view, its simple in construction, material is common, and member profile is succinct, it is easy to processing, assembles up convenient and swift simultaneously, it is easy to maintenance and replacing.

Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is illustrative of, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in scope of the present utility model when without departing from principle of the present utility model and objective, revises, replace and modification by those of ordinary skill in the art.

Claims (2)

1. the lifting gear for small-sized unmanned aircraft, it is characterised in that: include outer panel (1), interior plate (2), trailing wheel (6), front-wheel (5), front-wheel steer steering wheel (12) and wheel shaft wheel fork assembly;

Outer panel (1), interior plate (2) are arranged in parallel, it is connected by side plate adnexa (15), front wheel members (7) and steering wheel adnexa between outer panel (1) with interior plate (2), forms the main body supporting structure of lifting gear; Described main body supporting structure is fixed with vertical tail connector, for being connected with vertical tail below small-sized unmanned aircraft fuselage;

It is directly connected to by hind axle and trailing wheel (6) in the middle part of main body supporting structure;

The anterior steering wheel adnexa (10) of main body supporting structure upper fixed installation front-wheel steer steering wheel (12), the steering wheel connecting rod (13) of front-wheel steer steering wheel (12) is connected with wheel shaft (4) end in wheel shaft wheel fork assembly by cranking arm, and front-wheel steer steering wheel (12) is rotated by steering wheel connecting rod (13) and drive wheel shaft (4) of cranking arm;

Wheel shaft (4) coordinates through front wheel members (7) with the wheel fork (3) of wheel shaft wheel fork assembly; The end design that wheel shaft (4) coordinates with wheel fork (3) has disk, and in disc face, design has non-circular boss, and has screwed hole on raised head face; The joint face that wheel fork (3) coordinates with wheel shaft (4) has and non-circular boss size, through hole that shape is identical;When wheel shaft (4) coordinates with wheel fork (3), non-circular boss inserts in described through hole, and is provided with the screw (16) of pad in described screwed hole, by wheel shaft (4) and wheel fork (3) fastening; Wheel fork (3) is connected with front-wheel (5) by front axle;

Rear portion steering wheel adnexa (11) of main body supporting structure upper fixed installation rudder steering wheel (14); Rudder steering wheel (14) controls the rudder below small-sized unmanned aircraft fuselage on vertical tail.

2. a kind of lifting gear for small-sized unmanned aircraft according to claim 1, it is characterised in that: the Strength surplus position at outer panel (1) and interior plate (2) rear portion has multiple circular lightening core.