A multi-rotor drone simulation device for bench testing

Abstract

The utility model discloses a kind of multi-rotor unmanned aerial vehicle simulation devices for bench testing, including center disc and connecting rod, multiple connecting rods of circumferential array layout can be installed on the center disc;The center disc upper side has the vertical rod connected with the center position, and the upper end of the vertical rod is connected with inclination angle adjusting mechanism;The center disc has the first connecting portion of circumferential array layout;One end of the connecting rod has the second connecting portion connected with the first connecting portion, and the other end has the mounting portion connected with rotor motor;Rotor motor is installed with detachable rotor.The multi-rotor unmanned aerial vehicle simulation device of the application can conveniently replace connecting rod as needed, realize the adjustment of the number and length of connecting rod, and the model of rotor motor can also be replaced, so that different unmanned aerial vehicle parameters can be effectively simulated for testing, the parameter combination can be conveniently adjusted for testing the downwash airflow of plant protection unmanned aerial vehicle, and the user can be helped to design or select the unmanned aerial vehicle.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-rotor unmanned aerial vehicle (UAV) testing equipment, and in particular to a multi-rotor UAV simulation device for bench testing. Background Technology

[0002] In agricultural plant protection operations, multi-rotor drones, through the powerful downwash generated by their rotors, can effectively penetrate crop canopies, improving the uniformity and adhesion of pesticide spraying. However, different application scenarios place diverse demands on the structural parameters of drones (such as the number of rotors, arm length, motor power, blade size, and tilt angle), making drone design and selection face complex technical challenges. To optimize aerodynamic performance, improve operational efficiency, and reduce energy consumption, researchers typically need to conduct extensive experimental verification of various parameter combinations during the design phase.

[0003] Currently, performance testing of multi-rotor UAVs largely relies on actual flight tests or fixed-structure bench testing equipment. However, traditional bench testing equipment often has a fixed structure, making it difficult to flexibly adjust key parameters such as the number of rotors, arm length, layout, and overall tilt angle. This results in each test only being able to correspond to a single model or a limited combination of parameters, failing to efficiently cover multiple design variables. Furthermore, while some simulation devices offer some adjustability, their connection structures are complex and cumbersome to assemble and disassemble, and they lack the ability to effectively simulate the tilted flight state of UAVs, making it difficult to realistically reproduce the airflow characteristics caused by terrain undulations or changes in flight attitude during actual operations. Especially when operating in complex terrains such as sloping farmland, UAVs often need to fly at a certain tilt angle to maintain a stable spraying effect, and existing testing platforms are clearly insufficient in simulating such conditions.

[0004] Therefore, there is an urgent need for a bench testing device that is flexible in structure, easy to reconfigure quickly, and capable of simulating various rotor layouts and flight attitudes, so as to provide reliable data support and technical basis for the optimized design and accurate selection of UAVs. Utility Model Content

[0005] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a multi-rotor drone simulation device for bench testing that can conveniently simulate drones with different parameter combinations to facilitate drone design or selection.

[0006] Technical Solution: To achieve the above objectives, the present invention provides a multi-rotor UAV simulation device for bench testing, comprising a central disk and connecting rods. Multiple connecting rods arranged in a circular array can be mounted on the central disk. A vertical rod is located above the central disk and connected to its center position, with a tilt adjustment mechanism connected to the upper end of the vertical rod. Multiple first connecting portions are arranged in a circular array on the central disk. One end of each connecting rod has a second connecting portion connecting to the first connecting portions, and the other end has a mounting portion connecting to a rotor motor. A detachable rotor is mounted on the rotor motor.

[0007] Furthermore, the first connecting part includes an insertion hole disposed on the outer peripheral surface of the central disk, and a first screw hole through the upper and lower walls of the insertion hole; the second connecting part includes an insertion end capable of being inserted into the insertion hole, and a second screw hole through the insertion end; a screw passing through the first screw hole and the second screw hole fixes the connecting rod relative to the central disk.

[0008] Furthermore, the insertion hole is a tapered hole that is wider on the outside and narrower on the inside, and the insertion end has a tapered structure.

[0009] Furthermore, the central disk has multiple axially staggered connection groups, each of which consists of a circular array of first connection parts, and the number of first connection parts included in different connection groups varies. In this solution, the central disk has two connection groups, one of which contains 12 first connection parts and the other contains 8 first connection parts, thus meeting the simulation needs of different UAVs, and mainstream 4-rotor, 6-rotor, and 8-rotor UAVs can all be simulated.

[0010] Furthermore, the tilt adjustment mechanism includes a base, with the upright rotatably mounted relative to the base, and an adjusting cylinder connected between the upright and the base. By driving the adjusting cylinder to extend and retract, the tilt angle of the upright can be changed, thus facilitating the simulation of multi-rotor drones flying at an angle or collecting wind field data when blowing on crops on a slope.

[0011] Furthermore, the connecting rod is a telescopic rod, which includes a first rod portion and a second rod portion that can be adjusted relative to each other; the second connecting portion and the mounting portion are respectively located on the first rod portion and the second rod portion.

[0012] Furthermore, the first rod portion has a groove, the second rod portion has an insertion part that fits into the groove, and the first rod portion has a tightening screw that can act on the insertion part. When it is necessary to adjust the length of the first rod portion, the tightening screw can be loosened and the overall length of the connecting rod can be adjusted. After adjustment, the tightening screw can be tightened again.

[0013] Beneficial effects: The multi-rotor UAV simulation device for bench testing of this utility model has the following beneficial effects:

[0014] (1) The multi-rotor drone simulation device of the present invention can conveniently replace the connecting rod as needed, realize the adjustment of the number and length of the connecting rod, and the model of the rotor motor or rotor can also be replaced. In this way, different drone parameters can be effectively simulated for testing, and the parameter combination can be adjusted to test the downwash airflow of the plant protection drone. It can help users design or select drones.

[0015] (2) The connection structure between the center plate and the connecting rod is simple and easy to disassemble and assemble. It adopts the shape of a conical insertion hole, which allows for more insertion holes to be laid out on the outer circumference of the center plate. On the other hand, after the insertion end is inserted into the insertion hole, it can be positioned by the conical structure to ensure that the installation is in place and that the installation is firm.

[0016] (3) By driving the adjustment cylinder to make extension and retraction movements, the tilt of the pole can be changed, which can facilitate the simulation of multi-rotor drones to fly at an angle or to collect wind field data when blowing on crops on a slope. Attached Figure Description

[0017] Figure 1 A first-view structural diagram of a multi-rotor UAV simulator used for bench testing;

[0018] Figure 2 This is a second-view structural diagram of a multi-rotor UAV simulator used for bench testing.

[0019] Figure 3 A structural diagram of the central disk;

[0020] Figure 4 This is a structural diagram of the connecting rod.

[0021] In the diagram: 1-Central disc; 11-First connecting part; 11a-Insertion hole; 11b-First screw hole; 2-Connecting rod; 21-Second connecting part; 21a-Insertion end; 21b-Second screw hole; 22-Mounting part; 23-First rod part; 24-Second rod part; 25-Tightening screw; 3-Upright rod; 4-Tilt angle adjustment mechanism; 41-Mechanism base; 42-Adjusting cylinder; 5-Rotor motor; 6-Rotor; 7-Screw. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1 and Figure 2The multi-rotor UAV simulation device shown for bench testing includes a central disk 1 and connecting rods 2. Multiple connecting rods 2 arranged in a circular array can be mounted on the central disk 1. A vertical rod 3 connected to the center position is located above the central disk 1, and the upper end of the vertical rod 3 is connected to a tilt adjustment mechanism 4. Multiple first connecting parts 11 arranged in a circular array are located on the central disk 1. One end of each connecting rod 2 has a second connecting part 21 that connects to the first connecting parts 11, and the other end has a mounting part 22 that connects to a rotor motor 5. A detachable rotor 6 is mounted on the rotor motor 5.

[0024] The multi-rotor drone simulation device of the present invention allows for convenient replacement of the connecting rod 2 as needed, enabling adjustments to the number and length of the connecting rod 2. The models of the rotor motor 5 and rotor 6 can also be changed. In this way, different drone parameters can be effectively simulated for testing, and parameter combinations can be easily adjusted to test the downwash airflow of agricultural drones. This can help users design or select drones.

[0025] Preferably, the first connecting part 11 includes a plug hole 11a disposed on the outer peripheral surface of the central disk 1, and a first screw hole 11b through the upper and lower walls of the plug hole 11a; the second connecting part 21 includes a plug end 21a that can be inserted into the plug hole 11a, and a second screw hole 21b through the plug end 21a; a screw 7 passing through the first screw hole 11b and the second screw hole 21b fixes the connecting rod 2 relative to the central disk 1.

[0026] Preferably, the insertion hole 11a is a tapered hole that is wider on the outside and narrower on the inside, and the insertion end 21a has a tapered structure.

[0027] The connection structure between the center plate 1 and the connecting rod 2 is simple and easy to disassemble and assemble. It adopts the shape of a tapered insertion hole 11a, which allows for more insertion holes 11a to be arranged on the outer circumference of the center plate 1. On the other hand, after the insertion end 21a is inserted into the insertion hole 11a, it can be positioned by the tapered structure to ensure proper installation and secure installation.

[0028] Preferably, such as Figure 3 As shown, the central disk 1 has multiple axially staggered connection groups, each of which is composed of first connection parts 11 arranged in a circular array, and different connection groups contain different numbers of first connection parts 11. In this embodiment, the central disk 1 has two connection groups, one of which contains 12 first connection parts 11 and the other of which contains 8 first connection parts 11. This can meet the simulation needs of different UAVs, and mainstream 4-rotor, 6-rotor, and 8-rotor UAVs can all be simulated.

[0029] The tilt adjustment mechanism 4 includes a mechanism base 41, with the upright 3 rotatably mounted relative to the mechanism base 41. An adjusting cylinder 42 connects the upright 3 and the mechanism base 41. By driving the adjusting cylinder 42 to extend and retract, the tilt angle of the upright 3 can be changed. This facilitates the simulation of multi-rotor drones flying at an angle or the collection of wind field data when blowing on crops on a slope.

[0030] Preferably, such as Figure 4 As shown, the connecting rod 2 is a telescopic rod, which includes a first rod portion 23 and a second rod portion 24 that can be adjusted relative to each other; the second connecting portion 21 and the mounting portion 22 are respectively located on the first rod portion 23 and the second rod portion 24.

[0031] Preferably, the first rod portion 23 has a groove, the second rod portion 24 has an insertion portion that fits into the groove, and the first rod portion 23 has a tightening screw 25 that can act on the insertion portion. When it is necessary to adjust the length of the first rod portion 23, the tightening screw 25 can be loosened and the overall length of the connecting rod 2 can be adjusted. After the adjustment is completed, the tightening screw 25 can be tightened again.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-rotor unmanned aerial vehicle (UAV) simulation device for bench testing, characterized in that, The device includes a central disk (1) and connecting rods (2). Multiple connecting rods (2) arranged in a circular array can be installed on the central disk (1). The central disk (1) has a vertical rod (3) connected to its center position above it, and the upper end of the vertical rod (3) is connected to an angle adjustment mechanism (4). The central disk (1) has multiple first connecting parts (11) arranged in a circular array. One end of the connecting rod (2) has a second connecting part (21) connected to the first connecting part (11), and the other end has a mounting part (22) connected to a rotor motor (5). A detachable rotor (6) is installed on the rotor motor (5).

2. The multi-rotor unmanned aerial vehicle simulation device for bench testing according to claim 1, characterized in that, The first connecting part (11) includes a plug hole (11a) disposed on the outer peripheral surface of the central disk (1), and also includes a first screw hole (11b) through the upper and lower walls of the plug hole (11a); the second connecting part (21) includes a plug end (21a) that can be inserted into the plug hole (11a), and also includes a second screw hole (21b) through the plug end (21a); ​​a screw (7) passing through the first screw hole (11b) and the second screw hole (21b) fixes the connecting rod (2) relative to the central disk (1).

3. The multi-rotor UAV simulation device for bench testing according to claim 2, characterized in that, The insertion hole (11a) is a tapered hole that is wider on the outside and narrower on the inside, and the insertion end (21a) has a tapered structure.

4. The multi-rotor unmanned aerial vehicle simulation device for bench testing according to claim 1, characterized in that, The central disk (1) has multiple axially staggered connection groups, each of which is composed of the first connection part (11) arranged in a circular array, and the number of the first connection parts (11) included in different connection groups is different.

5. The multi-rotor unmanned aerial vehicle simulation device for bench testing according to claim 1, characterized in that, The tilt adjustment mechanism (4) includes a mechanism base (41), the upright (3) is rotatably mounted relative to the mechanism base (41), and an adjustment cylinder (42) is connected between the upright (3) and the mechanism base (41).

6. The multi-rotor unmanned aerial vehicle simulation device for bench testing according to claim 1, characterized in that, The connecting rod (2) is a telescopic rod, which includes a first rod part (23) and a second rod part (24) that can be adjusted relative to each other; the second connecting part (21) and the mounting part (22) are respectively located on the first rod part (23) and the second rod part (24).

7. The multi-rotor unmanned aerial vehicle simulation device for bench testing according to claim 6, characterized in that, The first rod (23) has a groove, the second rod (24) has an insertion part that fits into the groove, and the first rod (23) has a tightening screw (25) that can act on the insertion part.

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