RU187871U1 - VERTICAL TAKE-OFF AND UNMANNED AERIAL TEST TEST TEST ON A HANGING AND TAKING-OFF MODE - Google Patents

Abstract

This utility model relates to means of testing aviation equipment, namely, to stands for testing unmanned aerial vehicles of vertical take-off and landing (UAV GDP), and can be used to configure the automatic stabilization system of UAVs. The technical result of the utility model is to create a simple, effective stand for tests of UAV UAV on hover and take-off mode by increasing stability and expanding functionality by simplifying its design. Technical result achieved the fact that in the design of the test bench for UAV UAV GDP on hovering and take-off, including base 1, stand 9, rigidly connected to base 1, a vertical hollow shaft 2, which is mounted with the possibility of movement along its axis, according to which, base 1 is made in the form of a massive welded joint, for example, made of steel, a rectangular beam 3 is introduced, fixed on the upper end of the shaft 2, two movable arcuate rails 5 for tilting the UAV along the roll angle, two pairs of plates 4, for example, of a trapezoidal shape which are located on the sides of the beam 3, two on each side and bolted, rollers 11 for moving rails 5 along them, which are three pieces between each pair of plates 4, a pair of forks 6 located at the ends of the rails 5 and fastening them with bolts and nuts, a movable collapsible cradle 8, which is connected to the forks 6 by two axles 7, to ensure the tilt of the unmanned vehicle along the pitch angle. 2 ill.

Description

The utility model relates to means of testing aviation equipment, namely, to stands for testing unmanned aerial vehicles of vertical take-off and landing (UAV GDP), and can be used to configure the automatic stabilization system of UAVs.

The well-known "Test bench for mechanical transmission of an aircraft" according to patent RU 1374663 C, IPC ВСС 27/12, G01M 19/00, published on 09/30/1994, containing a support frame on which are tested gearboxes with output shafts, loading devices by traction and transverse forces, made in the form of hydraulic cylinders, the rods of which are pivotally mounted on a central bearing mounted on each output shaft of the tested gearboxes, torque loading devices and a loading device control system. In order to approximate the loading conditions to full-scale, the stand is equipped with rotary platforms and drive motors for rotating the platforms, while the rotary platforms are mounted by bearings on the support frame coaxially with each of the output shafts of the tested gearboxes, the hydraulic cylinder housings are fixed on the rotary platforms, and each loading device is rotatable moment made with independent from each other electrical circuit.

The disadvantage of this stand is that it operates according to an open loading scheme, includes several electric drives and two braking devices, which requires complex hardware control and complicates the design of the stand.

The closest in technical essence and taken as a prototype is the "Stand for testing quadrocopters" according to patent RU 163054 U1, IPC ВСС 27/12, G01M 9/06, published July 10, 2016 B.I. No. 19. The device consists of a base on which a stand is fixedly mounted, inside of which a vertical shaft with a platform mounted on it is mounted with rotation. A drive is installed on the platform kinematically connected to a horizontal shaft. At the end of the horizontal shaft, another drive is fixedly mounted kinematically connected through the shaft to a platform designed to mount the quadrocopter. The vertical shaft is connected to the electromagnetic brake clutch. By means of a drive connected with a horizontal shaft, a platform with a fixed quadrocopter tilts about the axis of the shaft. Then, after turning on the quadrocopter thrust, the whole structure will rotate about the axis of the vertical shaft. This creates a braking torque due to the clutch-brake, directly proportional to the current supplied to the clutch. Depending on the magnitude of this moment and the structural dimensions of the horizontal shaft, the traction force developed by the quadrocopter can be measured. This stand also allows you to measure the traction force of the quadrocopter at different angles of inclination of the thrust vector of its propellers.

The disadvantage of this test bench for quadrocopters is the presence of several drives and an electromagnetic clutch-brake, which generally complicates the design of the product. The design of the stand does not allow testing of quadrocopters and unmanned convertiplanes of large mass and dimensions, which reduces functionality, and their placement can lead to impaired stability of the stand during testing, which makes it inoperative, and therefore ineffective.

The solved problem of the proposed utility model is to expand the functionality of the stand for testing unmanned aerial vehicles of vertical take-off and landing, simplifying the design of the stand and increasing stability.

The technical result of the utility model is the creation of a simple, effective test bench for UAV UAVs during hover and take-off by increasing stability and expanding functionality by simplifying its design.

The technical result is achieved by the fact that in the test bench for an unmanned aerial vehicle of vertical take-off and landing in hover and take-off mode, including a base, a stand rigidly connected to the base, a vertical hollow shaft that is mounted to move along its axis, according to which, the base made in the form of a massive welded joint, for example, made of steel, a rectangular beam is introduced, mounted on the upper end of the shaft, two movable arcuate rails for tilting the unmanned aerial vehicle the angle of the roll, two pairs of plates, for example, trapezoidal, which are located on the sides of the beam, two on each side and fixed with bolts, rollers for moving rails along them, which are three pieces between each pair of plates, a pair of forks located at the ends of the rails and fastening them together with bolts and nuts, a movable collapsible cradle, which is connected to the forks by two axes, to ensure the tilt of the unmanned vehicle along the pitch angle.

Novelty:

The proposed “Test bench for unmanned aerial vehicle vertical take-off and landing on hover and take-off” allows you to expand the functionality by simplifying and performing design features, namely: the introduction of a rectangular beam mounted on the upper end of the shaft, two movable arcuate rails, two pairs of plates that are located on the sides of the beam, two on each side and fixed with bolts, rollers to move rails along them, pairs of forks located at the ends elsov and fastening them together by means of bolts and nuts, the movable collapsible cage, which is connected to the plugs two axes that provide unmanned slope of the pitch angle. Also, the rigid connection of the base with the rack, and the base is made, for example, in the form of a massive welded joint made of steel, allows to increase the stability of the stand, while expanding the functionality by simplifying the design allows testing of UAVs of large mass and overall dimensions.

To clarify the technical nature, consider the drawings:

FIG. 1 - Test bench for UAV UAV GDP in hover and take-off mode - front view;

FIG. 2 - Test bench for UAV UAVs during hover and take-off mode - side view, where:

1 - base;

2 - vertical hollow shaft;

3 - beam;

4 - side plate;

5 - rail;

6 - fork;

7 - axis;

8 - cradle;

9 - rack;

10 - bearings;

11 - videos.

The test bench for UAV UAVs in hover and take-off mode contains a welded base 1 made of steel. The stand 9 is rigidly connected to the base 1. The stand 9 is hollow and has a cylindrical shape. Two bearings fasteners 10 are installed inside the strut 9. A vertical hollow shaft 2 is installed in the bearings 10 of the bearing 10, a rectangular beam 3 fixed to the upper end of which is fixed. Four lateral plates 4, for example, of a trapezoidal shape, two on each side, are fastened to the sides of the beam 3 on the left and right. The plates 4 are bolted in pairs to the beam 3. Three rollers 11 are mounted between each pair of connected plates, on which the wooden rails 5 move. The rails 5 are connected by two forks 6 using bolts and nuts. In the upper parts of the forks 6, two steel axles 7 are mounted on which a wooden cradle 8 is fixed to accommodate an unmanned vehicle. The cradle 8 is made collapsible to ensure the possibility of testing unmanned aerial vehicles of vertical take-off and landing of various designs and sizes, but not exceeding the maximum permissible weight for this stand.

Assembling a test bench for UAV UAVs during hover and take-off is carried out as follows:

Fasteners with bearings 10 are installed in the rack 9, rigidly connected to the base 1. Next, a vertical hollow shaft 2 is inserted into the rack 9, at the end of which a rectangular beam 3 is mounted, mounted on the upper end of the shaft. Using bolts, two pairs of plates 4 are attached to the ends of the beam 3, for example, of a trapezoidal shape, which are located on the sides of the beam, two on each side of the plate 4, between which rollers 11 are placed to move the rails along them.

Between the side plates 4, two movable arcuate rails 5 are mounted on the rollers 11. The rails are interconnected by forks 6 using bolts and nuts. In the upper part of the forks 6, axles 7 are mounted on which the assembled cradle 8 is mounted to install the UAV UAV.

The inventive device operates as follows:

Before the test, the unmanned aerial vehicle of vertical take-off and landing is mounted on the cradle 8, and due to the folding cradle, it is possible to change the design of the cradle for a specific device and its placement on it can take place without the help of fasteners. Under the influence of the weight of the unmanned aerial vehicle, the vertical shaft 2 moves downward using bearings 10 mounted inside the rack 9. When the unmanned aerial vehicle’s lifting screws start and operate, the shaft 2 moves along its axis. During the test, it may turn out that the thrust generated by one or more lifting screws is greater or less than the required thrust required for stable take-off and hovering of the unmanned vehicle. In this case, the vehicle’s position in the horizontal plane will not be maintained, but its tilt will occur along the pitch angle using the cradle 8 and roll angle using movable rails 5. To stabilize the unmanned vehicle in the automatic UAV control system, the necessary distribution of lift between the screws is selected until the operating mode of the lifting screws necessary for leveling in space and stable take-off, landing and hovering is established.

According to its technical and economic advantages, in comparison with well-known analogues, the claimed technical solution allows you to create a simple, effective "Stand for testing UAVs GDP in hover and take-off mode" by increasing stability by performing a welded base, for example, from steel, expanding functionality by simplifying the design allows testing UAVs of large masses and overall dimensions with the possibility of alignment in space and stable take-off, landing and hovering.

Claims (1)

Test bench for unmanned aerial vehicle vertical take-off and landing in hover and take-off mode, including a base, a stand rigidly connected to the base, a vertical hollow shaft that is mounted to move along its axis, characterized in that the base is made in the form of a massive welded joint for example, from steel, a rectangular beam was introduced, mounted on the upper end of the shaft, two movable arcuate rails for tilting the UAV along the angle of heel, two pairs of plates, for example trapezoidal measures, which are located on the sides of the beam, two on each side and bolted, rollers for moving rails along them, which are three pieces between each pair of plates, a pair of forks located at the ends of the rails and fastening them between by means of bolts and nuts, a movable collapsible cradle, which is connected to the forks by two axes, to ensure the tilt of the unmanned vehicle along the pitch angle.

Images