Unmanned aerial vehicle test bench
By designing a drone test bench with a detachable aluminum profile structure and shock absorption device, the problems of existing test benches being non-detachable and lacking shock absorption have been solved, enabling convenient transportation and safe testing in multiple environments, while reducing risks and costs.
Patent Information
- Application Number
- CN202520323613.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing drone test benches are not detachable, lack effective shock absorption devices, have complex structures or require ground stakes for fixation, which limits the convenience of transportation and the site of use, cannot meet the flexible deployment in various environments, and increases testing risks and costs.
A test bench for testing drones was designed, including a base and a detachable test bench frame. It is assembled with aluminum profiles and aluminum profile fasteners, and connected by universal joints and connecting rods. Limit bolts limit the flight altitude, and shock-absorbing pads are installed on the clamps to provide shock absorption. No ground nails are required for fixation.
It enables convenient disassembly and transportation of the test bench, provides effective shock absorption protection, ensures safe testing of drones in various environments, and reduces testing risks and costs.
Smart Images
Figure CN223751123U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of aviation technology especially a kind of for vertical take-off and landing unmanned aerial vehicle test bench. BACKGROUND
[0002] In recent years, with the rise of unmanned aerial vehicle industry, especially the emergence of large unmanned aerial vehicle and its wide application scenarios, many unmanned aerial vehicle models with different functions are bred, and vertical take-off and landing unmanned aerial vehicle becomes one of the largest unmanned aerial vehicle projects in global research and development in recent years due to its superiority in various application scenarios, however, due to the immaturity of the research and development stage of unmanned aerial vehicle system, without the protection of test equipment, there are often safety hazards such as aircraft explosion, which seriously endangers the safety of test personnel and delays the research and development progress, therefore, the auxiliary test equipment of flight control system with higher safety and reliability becomes an increasingly urgent demand in the industry.
[0003] At present, the equipment for testing the control performance and flight attitude stability of the flight control system of vertical take-off and landing unmanned aerial vehicle mainly appears in the form of test bench, and the existing test bench is mostly welded, so that the main body of the test bench cannot be disassembled, greatly reducing the convenience of transportation. In addition, the existing test bench usually lacks effective shock absorbing devices, which cannot provide necessary shock absorbing protection for unmanned aerial vehicle during take-off or landing, increasing the risk of unmanned aerial vehicle during testing. Although a part of test benches are equipped with shock absorbing devices, the structure is often complex, increasing the manufacturing and maintenance cost of equipment. Most of the current test benches use ground pegs to fix, so that their use is limited by the site and cannot be flexibly deployed in various environments. These limitations make the existing test bench unable to meet the growing market demand, and a new type of unmanned aerial vehicle test equipment with disassemblability, easy fixation and effective shock absorbing protection is urgently needed to improve the safety and testing efficiency of unmanned aerial vehicle, so as to promote the further development and application of unmanned aerial vehicle technology. CONTENT OF THE UTILITY MODEL
[0004] The unmanned aerial vehicle test bench of the utility model is aimed at providing a stable and reliable test platform for early testing of unmanned aerial vehicle to ensure that unmanned aerial vehicle can still operate safely and realize verification of important functions under the condition that each subsystem of unmanned aerial vehicle is not fully verified, which can significantly reduce the accident loss under the condition that early system is not mature, and protect the safety of test personnel. The main functions of the unmanned aerial vehicle test bench of the utility model include: providing a verification platform for integrated machine, providing a test platform for flight control function and performance, and providing a test platform for whole machine hovering performance (hovering time, power, etc.). The test unmanned aerial vehicle can take off and realize vertical, pitch, roll and yaw motion on the unmanned aerial vehicle test bench proposed in the utility model, and the motion amplitude of each channel is limited by the test bench, to ensure that the test unmanned aerial vehicle cannot appear attitude overturning operation accident on the test bench.
[0005] In order to overcome the prior art flight test bench body cannot be disassembled, the lack of shock absorbing device or shock absorbing device structure is complex, the bench needs to use the ground nail into the ground fixed defects, the utility model adopts the technical scheme: a kind of unmanned aerial vehicle test bench, including base, clamp, the base is equipped with bottom cross bar, first square tube is placed above the bottom cross bar, the first square tube is inserted into third fixing part, the third fixing part is T-shaped structure by two square tubes welding, second square tube passes through the third fixing part, the first, second square tube and bench bottom cross bar use fourth fixing part and bolt nut fixed, first square tube and second square tube top place pressing plate, heavy object is placed above the pressing plate.The base is equipped with three layers of cross bar and connecting rod, the base is equipped with stand, the stand is fixed first cross bar by L-shaped fixed plate, bolt nut, the first cross bar middle position is equipped with first connecting rod, the first connecting rod and the first cross bar use angle code, bolt nut fixed, the first cross bar and first connecting rod top install iron plate, the iron plate is equipped with third through hole and installs first linear bearing flange.The stand uses T-shaped plate, bolt nut to fix second cross bar, the second cross bar middle position uses angle code, bolt nut to fix second connecting rod, the second connecting rod intersection is equipped with second linear bearing flange.The first linear bearing flange and the second linear bearing flange are concentric, the first linear bearing flange and second linear bearing flange are equipped with connecting rod inside, the connecting rod is below limit bolt, universal joint is installed above the connecting rod, flange is equipped above the universal joint, the first cross bar, first connecting rod and the second cross bar, second connecting rod are equipped with connecting column, the flange top installs third square tube, the third square tube installs fourth square tube, the fourth square tube is fixed circular tube by first fixing part and second fixing part, clamp and iron plate are respectively installed first shock pad and second shock pad, the first shock pad and clamp are fixed by tie, the second shock pad and base are fixed by adhesive tape winding, the circular tube is fixed in the hoop under the unmanned aerial vehicle undercarriage.
[0006] The utility model has the advantages that universal joint and connecting rod are used between base and clamp, the flight height of unmanned aerial vehicle is limited by limit bolt, the pitch and roll angle is limited to ensure that unmanned aerial vehicle can be tested within a safe range, the bench is assembled by aluminum profile and aluminum profile fastener, convenient to disassemble and assemble, easy to transport, EVA foam material is fixed on clamp by using tie or adhesive tape, simple and light to realize shock absorbing function, the bench is more stable by using fixing rod, pressing plate and weight cooperation, and does not need to be fixed by ground nail, can be flexibly deployed in various environments. BRIEF DESCRIPTION OF DRAWINGS
[0007] The utility model is further described below in combination with the drawings and examples.
[0008] Figure 1The utility model discloses a schematic view;
[0009] Figure 2 The utility model discloses a sectional view;
[0010] Figure 3 The utility model discloses an isometric view;
[0011] Figure 4 The utility model discloses a schematic view along E-E line;
[0012] Figure 5 The utility model discloses an enlarged view of A place;
[0013] Figure 6 The utility model discloses a second fixed part schematic view;
[0014] Figure 7 The utility model discloses a first fixed part schematic view;
[0015] Figure 8 The utility model discloses a fourth fixed part schematic view;
[0016] In the drawing, 1. clamp, 101. third party pipe, 102. fourth party pipe, 103. flange fixed cover, 2. base, 201. first cross rod, 202. stand, 203. connecting column, 204. second cross rod, 205. third cross rod, 206. third connecting rod, 207. first connecting rod, 208. second connecting rod, 3. first shock pad, 4. first fixed part, 5. second fixed part, 6. second shock pad, 7. iron plate, 8. first square tube, 9. second square tube, 10. pressing plate, 11. round tube, 12. bottom cross rod, 13. fourth fixed part, 14. third fixed part, 15. first linear bearing flange, 16. flange, 17. universal joint, 18. pin, 19. second linear bearing flange, 20. connecting rod, 21. limit bolt. DETAILED DESCRIPTION
[0017] Example 1
[0018] The unmanned aerial vehicle test bench mainly comprises a base 2, a clamp 1 and a plurality of sets of supporting and connecting assemblies. The base 2 is the basic structure of the test bench, which is provided with a bottom crossbar 12 to improve the overall stability and carrying capacity. The bottom crossbar 12 enables the entire base 2 to uniformly distribute the gravity when carrying heavy objects, preventing the test bench from tilting. A first square tube 8 is placed above the bottom crossbar 12, the first square tube 8 is inserted into a third fixing member 14, the third fixing member 14 is a T-shaped structure formed by welding two square tubes, a second square tube 9 penetrates through the third fixing member 14, and the first square tube 8 and the second square tube 9 are fixed with the bottom crossbar 12 by using a fourth fixing member 13 and bolts and nuts. A pressing plate 10 is placed above the first square tube 8 and the second square tube 9, and a heavy object is placed above the pressing plate 10, further enhancing the stability of the base 2. The T-shaped structure of the third fixing member is designed to make the first square tube 8 and the second square tube 9 provide additional fixation to enhance the stability of the structure. The second square tube 9 penetrates through the third fixing member 14 and is fixed with the bottom crossbar 12 by using the fourth fixing member 13 and bolts and nuts, forming a stable frame structure to ensure that excessive vibration and displacement will not occur during testing. The base 2 is provided with three layers of crossbars and connecting rods. The base 2 is provided with a stand column 202, the stand column 202 is fixed with a first crossbar 201 by using an L-shaped fixing plate and bolts and nuts, a first connecting rod 207 is arranged at the middle position of the first crossbar 201, the first connecting rod 207 is fixed with the first crossbar 201 by using an angle code and bolts and nuts, an iron plate 7 is installed above the first crossbar 201 and the first connecting rod 207, and a third through hole is arranged on the iron plate 7 and a first linear bearing flange 15 is installed. The stand column 202 is fixed with a second crossbar 204 by using a T-shaped plate and bolts and nuts, a second connecting rod 208 is fixed at the middle position of the second crossbar 204 by using an angle code and bolts and nuts, a second linear bearing flange 19 is arranged at the intersection of the second connecting rod 208, the first linear bearing flange 15 is concentric with the second linear bearing flange 19, so as to improve the movement precision of the equipment, a connecting rod 20 is arranged in the first linear bearing flange and the second linear bearing flange, a limiting bolt 21 is arranged below the connecting rod 20, a universal joint 17 is installed above the connecting rod 20, a flange 16 is arranged above the universal joint 17, the connecting rod 20 and the universal joint 17 are fixed with the flange 16 through a pin 18, a connecting column 203 is arranged between the first crossbar 201, the first connecting rod 207, the second crossbar 204 and the second connecting rod 208, a third square tube 101 is installed above the flange 16, the flange 16 and a flange fixing cover 103 are used to fix the third square tube 101 by using bolts and nuts, and a fourth square tube 102 is installed on the third square tube 101. The above-mentioned crossbars, connecting rods, stand columns and connecting columns are cut from aluminum profiles, and the above-mentioned L-shaped plates, T-shaped plates and bolts and nuts are aluminum fasteners.The fourth square tube 102 fixes the circular tube 11 through the first fixing part 4 and the second fixing part 5, the clamp 2 and the iron plate 7 are respectively provided with the first shock pad 3 and the second shock pad 6, the first shock pad 3 is fixed with the clamp 1 through a strap, the second shock pad 6 is fixed with the base 2 through bonding or tape winding, and the circular tube 11 is fixed in the landing gear clamp under the unmanned aerial vehicle.
[0019] [Example 2]
[0020] Before the unmanned aerial vehicle flight test is carried out, the unmanned aerial vehicle is first disassembled, the circular tube 11 is installed in the landing gear clamp, the circular tube 11 is fixed with the fourth square tube 102 through the first fixing part 4, the second fixing part 5 and the bolt nut, the distance between the two circular tubes 11 can be adjusted according to the distance between different landing gears, and the position of the two circular tubes 11 can be moved to adjust the center of gravity of the unmanned aerial vehicle on the clamp 1, so that the center of gravity of the unmanned aerial vehicle is on the same straight line as the universal joint 17 and the connecting rod 20, and the unmanned aerial vehicle has better controllability in the flight test. When the unmanned aerial vehicle takes off and lands, the clamp 1, the universal joint 17 and the connecting rod 20 move up and down, the connecting rod 20 can move up and down and rotate in the first linear bearing flange 15 and the second linear bearing flange 19, and cooperates with the universal joint 17 to make the unmanned aerial vehicle with the clamp 1 perform a roll, pitch and yaw attitude within a limited angle range. The first shock pad 3 and the second shock pad 6 use shock-absorbing foam, which is light in material and has a shock-absorbing effect. The first shock pad 3 is fixed with the clamp 1 through a strap, and the second shock pad 6 is fixed with the rack base by means of adhesive tape or bonding. When the unmanned aerial vehicle lands, the upper and lower shock pads produce a buffering and shock-absorbing effect, protecting the unmanned aerial vehicle.
[0021] [Example 3]
[0022] When the unmanned aerial vehicle flight test is carried out, when the unmanned aerial vehicle rises to a certain height, the limiting bolt 21 installed on the connecting rod 20 will be blocked by the second linear bearing flange 19, at this time the connecting column 203 stabilizes the second connecting rod 208 to prevent the second linear bearing flange 19 from moving upward, and the connecting column 203, the first cross bar 201, the first connecting rod 207, the second cross bar 204 and the second connecting rod 208 are fixed by using angle code and bolt nut. When the unmanned aerial vehicle flight test is carried out, the unmanned aerial vehicle drives the clamp 1 to perform a roll, pitch and yaw action attitude through the universal joint 17 and the connecting rod 20, the movement distance of the connecting rod 20 is limited by the limiting bolt 21, thereby limiting the distance between the clamp 1 and the base 2, the movement angle of the first shock pad 3 above the second shock pad 6 is limited, and the roll and pitch angles of the unmanned aerial vehicle are limited.
Claims
1. A drone test bench comprising a fixture, a base, characterized in that, The base is provided with a bottom crossbar, the bottom crossbar is provided with a first square tube and a second square tube, the first square tube and the second square tube are provided with a pressing plate, the base is provided with a stand, the stand is provided with a plurality of groups of crossbars, connecting rods and connecting columns, an iron plate is arranged above the first crossbar, a linear bearing flange is mounted in the iron plate, a connecting rod is arranged in the linear bearing flange, a universal joint is mounted above the connecting rod, the universal joint is connected with a clamp through a flange, the clamp is provided with a first fixing member and a second fixing member for fixing a circular tube, a landing gear hoop of an unmanned aerial vehicle is fixed to the circular tube, a shock pad is arranged between the clamp and the base, and the clamp can drive the connecting rod to move within a limited range.
2. The unmanned aerial vehicle test stand of claim 1, wherein, The base is composed of aluminum profiles and aluminum profile fasteners.
3. The unmanned aerial vehicle test stand of claim 1, wherein, The shock pad between the clamp and the base is fixed by adhesive tape or a tie or adhesion.
4. The unmanned aerial vehicle test stand of claim 1, wherein, The clamp and the circular tube are fixed by the first fixing member and the second fixing member, and the position of the circular tube on the clamp is adjustable.
5. The unmanned aerial vehicle test stand of claim 1, wherein, The base and the first square tube and the second square tube are fixed by third and fourth fixing members.
6. The unmanned aerial vehicle test stand of claim 1, wherein, The first crossbar and the first connecting rod are provided with a connecting column, and the second crossbar and the second connecting rod are provided with a connecting column.
7. The unmanned aerial vehicle test stand of claim 1, wherein, The clamp is fixed with the universal joint through a pin, the universal joint is fixed with the connecting rod through a pin, and a limiting bolt is mounted on the connecting rod.