A static load measurement test device for unmanned aerial vehicle landing gear

Abstract

The present invention discloses a static load measurement test device for a drone landing gear, comprising a pressure test assembly, a load-bearing positioning assembly for positioning and installing the landing gear, and a base frame assembly used as an installation base, wherein the base frame assembly adopts a hollow frame structure with an accommodating space, the pressure test assembly is arranged on the top of the base frame assembly, the measuring end of the pressure test assembly extends into the accommodating space and is movably arranged vertically, the load-bearing positioning assembly is slidably arranged on the base frame assembly along the lateral direction of the base frame assembly, and the load-bearing positioning assembly comprises a push-pull support mechanism and a load-bearing clamping mechanism. The static load measurement test device for a drone landing gear of the present invention is convenient for measuring the static load of the landing gear and is easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle landing gear measurement and testing equipment, and in particular to a static load measurement and testing equipment for unmanned aerial vehicle landing gear. Background Art

[0002] UAVs are unmanned aircraft controlled by radio remote control equipment and self-contained program control devices, or operated completely or intermittently autonomously by onboard computers; static loads refer to loads that have no dynamic effect on structures or structural members, or whose dynamic effect can be ignored compared to the static effect. Static loads refer to the ability of various components to bear loads at low speeds or at rest, such as structural deadweight, snow loads, soil pressure, and live loads on building floors.

[0003] In the prior art, the static load of the UAV landing gear is difficult to measure, which makes it difficult to control the variables of the shape and material of the UAV landing gear during production, thereby reducing the production efficiency of the UAV landing gear.

[0004] In view of this, it is necessary to propose a static load measurement test device for UAV landing gear to solve the above defects. Summary of the invention

[0005] The main purpose of the present invention is to provide a static load measurement test device for a UAV landing gear, aiming to solve the technical problem that the static load of the existing UAV landing gear is difficult to measure.

[0006] To achieve the above-mentioned purpose, the present invention provides a static load measurement test device for a UAV landing gear, comprising a pressure test assembly, a load-bearing positioning assembly for positioning and installing the landing gear, and a base frame assembly used as an installation base, wherein the base frame assembly adopts a hollow frame structure with an accommodating space, the pressure test assembly is arranged on the top of the base frame assembly, the measuring end of the pressure test assembly extends into the accommodating space and is movably arranged in the vertical direction, the load-bearing positioning assembly is slidably arranged on the base frame assembly along the lateral direction of the base frame assembly, and the load-bearing positioning assembly is slidably arranged on the base frame assembly along the lateral direction of the base frame assembly, and the load-bearing positioning assembly is accommodated by sliding the load-bearing positioning assembly along the lateral direction of the base frame assembly. In or out of the accommodating space, the load-bearing positioning component includes a push-pull support mechanism and a load-bearing clamping mechanism. The push-pull support mechanism is movably arranged on the base frame assembly along the lateral direction of the base frame assembly. The load-bearing clamping mechanism includes a load-bearing support part, a load-bearing clamping part and a load-bearing drive part. The load-bearing support part is fixedly arranged on the push-pull support mechanism. Two load-bearing clamping parts are relatively arranged on the load-bearing support part along the lateral direction of the base frame assembly. Each load-bearing clamping part is movably arranged along the lateral direction of the base frame assembly. The load-bearing drive part is used to drive the two load-bearing clamping parts to synchronously approach or move away from each other along the lateral direction of the base frame assembly.

[0007] Furthermore, the base frame assembly includes an installation base plate, a first installation frame plate, a second installation frame plate, an installation middle partition plate, an installation column and an installation top plate. The installation base plate, the installation middle partition plate and the installation top plate are arranged in sequence along the vertical direction. The first installation frame plate and the second installation frame plate are respectively supported between the installation base plate and the installation middle partition plate. The installation column is supported between the installation middle partition plate and the installation top plate. An accommodating space is formed between the installation middle partition plate and the installation top plate. The pressure testing assembly is arranged on the installation top plate, and the push-pull support mechanism is movably arranged on the installation middle partition plate laterally.

[0008] Furthermore, the first mounting frame plate and the second mounting frame plate are arranged at intervals along the lateral direction, and an avoidance guide hole is provided on the first mounting frame plate. The push-pull support mechanism includes a push-pull bracket, a push-pull support plate, a push-pull guide rod and a push-pull reset member. The push-pull guide rod is arranged laterally, and the first end of the push-pull guide rod is supported on the first mounting frame plate, and the second end of the push-pull guide rod is supported on the second mounting frame plate. The push-pull support plate is provided with a push-pull guide hole corresponding to the push-pull guide rod. The push-pull guide rod is arranged through the push-pull guide hole to guide the push-pull support plate to move laterally between the first mounting frame plate and the second mounting frame plate. The push-pull reset member is elastically loaded between the first mounting frame plate and the push-pull support plate to drive the push-pull support plate to move laterally toward the second mounting frame plate.

[0009] Furthermore, the push-pull bracket adopts a U-shaped frame with a side opening, and the push-pull bracket is inserted into the installation partition through the side opening. The push-pull bracket includes an upper support plate and a lower support plate arranged along the vertical interval and a side support plate for fixedly connecting the upper support plate and the lower support plate. The upper support plate is arranged on the installation partition, and the end of the lower support plate away from the side support plate passes through the avoidance guide hole and is fixedly connected to the push-pull support plate.

[0010] Furthermore, the base frame assembly also includes a limit stop bar and a first sliding guide portion. One side of the mounting base plate extends outward to the outside of the second mounting frame plate. The limit stop bar is fixedly arranged on the protruding side of the mounting base plate along the transverse direction. The first sliding guide portion is fixedly arranged on the protruding side of the mounting base plate along the laterally direction. The first sliding guide portion is arranged between the first mounting frame plate and the limit stop bar. The push-pull support mechanism also includes a side front plate for supporting the side support plate on the protruding side of the mounting base plate. The top of the side front plate is fixedly connected to the side support plate, and the bottom of the side front plate is provided with a second sliding guide portion that cooperates with the first sliding guide portion.

[0011] Furthermore, the base frame assembly also includes a limiting guide frame and a limiting guide rod. The limiting guide frame is fixedly mounted on the mounting middle partition, and the limiting guide rod is movably mounted on the limiting guide frame along the vertical direction. The limiting guide rod moves vertically and cooperates with the push-pull support plate to position the push-pull support plate.

[0012] Furthermore, the first end of the load-bearing clamping portion is arranged to protrude from the upper surface of the load-bearing support portion, the second end of the load-bearing clamping portion extends outward to the outside of the load-bearing support portion and is bent, and the load-bearing driving portion includes a transmission screw and a balance rod arranged to penetrate the load-bearing support portion in the transverse direction, the two ends of the transmission screw are respectively arranged to protrude from the side of the load-bearing support portion, the threads at the two ends of the transmission screw have opposite rotation directions, the second end of the load-bearing clamping portion is connected to the corresponding outwardly extending threaded end of the transmission screw through a threaded fit, and the second end of the load-bearing clamping portion is fixedly connected to the outwardly extending end of the corresponding balance rod, and the two load-bearing clamping portions are driven to approach or move away synchronously by the rotation of the transmission screw.

[0013] Furthermore, first sliding guide parts are respectively provided on the side wall surfaces on both sides of the load-bearing support part, and the first sliding guide parts are arranged in the transverse direction. A door-shaped clamping frame is provided at the first end of the load-bearing clamping part, and second sliding guide parts cooperating with the first sliding guide parts are respectively provided on the side walls on both sides of the clamping frame.

[0014] Furthermore, the pressure testing assembly includes a lifting drive unit and a pressure sensor, the fixed end of the lifting drive unit is fixedly mounted on the base frame assembly, the movable end of the lifting drive unit passes through the top surface of the base frame assembly and extends into the accommodating space, and the pressure sensor is arranged on the lifting end of the lifting drive unit.

[0015] Furthermore, the lifting drive part includes a lifting drive motor, a lifting linkage plate, a lifting linkage column, a buffer spring and a sensor mounting plate. The mounting end of the lifting drive motor is fixedly arranged on the upper surface of the base frame assembly. A lifting linkage plate is provided on the telescopic end of the lifting drive motor. The first end of the lifting linkage column is fixedly connected to the lifting linkage plate. The second end of the lifting linkage column extends vertically and passes through the upper surface of the base frame assembly and extends into the accommodating space and is fixedly connected to the sensor mounting plate. The lifting linkage column is movably arranged vertically, and the buffer spring is sleeved on the second end of the lifting linkage column and is arranged between the upper surface of the sensor mounting plate and the bottom surface of the mounting top plate.

[0016] Compared with the prior art, the static load measurement test device for a UAV landing gear provided by the present invention has the following beneficial effects:

[0017] A static load measurement test device for a drone landing gear provided by the present invention comprises a pressure test assembly, a load-bearing and positioning assembly and a base assembly, wherein the base assembly serves as an installation base for the pressure test assembly and the load-bearing and positioning assembly, and the base assembly adopts a hollow frame structure having an accommodating space; the load-bearing and positioning assembly is slidably arranged on the base assembly along the lateral direction of the base assembly, and when it is necessary to measure the static load of the landing gear, the load-bearing and positioning assembly slides along the lateral direction of the base assembly to move out of the accommodating space, thereby facilitating loading and positioning the landing gear outside the accommodating space, thereby avoiding interference between the base assembly and the pressure test assembly; the load-bearing and positioning assembly slides along the lateral direction of the base assembly so that the load-bearing and positioning assembly drives the landing gear to be accommodated in the accommodating space, and the pressure test assembly is arranged on the top of the base assembly, and the measuring end of the pressure test assembly extends into the accommodating space and is movably arranged vertically, so that pressure is applied to the landing gear positioned and loaded in the accommodating space and measured by the pressure test assembly. The static load measurement test device for the landing gear of a UAV of the present invention is convenient for measuring the static load of the landing gear and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is one of the overall structural schematic diagrams of a static load measurement test device for a UAV landing gear in one embodiment of the present invention;

[0020] Figure 2 The second schematic diagram of the overall structure of the static load measurement test device for the landing gear of a UAV in one embodiment of the present invention;

[0021] Figure 3 This is one of the partial structural schematic diagrams of a static load measurement test device for a UAV landing gear in one embodiment of the present invention;

[0022] Figure 4 The second partial structural schematic diagram of the static load measurement test device for the landing gear of a UAV in one embodiment of the present invention;

[0023] Figure 5 The third schematic diagram of a part of the structure of the static load measurement test device for the landing gear of a UAV in one embodiment of the present invention;

[0024] Figure 6The fourth schematic diagram of the partial structure of the static load measurement test device for the landing gear of a UAV in one embodiment of the present invention;

[0025] Description of Figure Numbers:

[0026] 100. Static load measurement test device for UAV landing gear; 10. Pressure test assembly; 11. Lifting drive unit; 111. Lifting drive unit; 112. Lifting linkage plate; 113. Lifting linkage column; 114. Buffer spring; 12. Pressure sensor; 20. Load-bearing positioning assembly; 21. Push-pull support mechanism; 211. Push-pull bracket; 212. Push-pull support plate; 213. Push-pull guide rod; 214. Push-pull reset member; 215. Front side plate; 2 2. Load-bearing clamping mechanism; 221. Load-bearing support portion; 222. Load-bearing clamping portion; 223. Load-bearing driving portion; 30. Base frame assembly; 301. Accommodating space; 31. Installing bottom plate; 32. First installing frame plate; 321. Avoidance guide hole; 33. Second installing frame plate; 34. Installing middle partition plate; 35. Installing column; 36. Installing top plate; 37. Limiting block strip; 38. First sliding guide portion; 391. Limiting guide frame; 392. Limiting guide rod.

[0027] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Please refer to the attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The present invention provides a static load measurement test device 100 for a landing gear of an unmanned aerial vehicle, comprising a pressure test assembly 10, a load-bearing and positioning assembly 20 for positioning and installing the landing gear, and a base assembly 30 used as an installation base, wherein the base assembly 30 adopts a hollow frame structure having an accommodating space 301, the pressure test assembly 10 is arranged on the top of the base assembly 30, the measuring end of the pressure test assembly 10 extends into the accommodating space 301 and is movably arranged in the vertical direction, the load-bearing and positioning assembly 20 is slidably arranged on the base assembly 30 along the lateral direction of the base assembly 30, and the load-bearing and positioning assembly 20 is accommodated in the accommodating space 301 or from the accommodating space by sliding the load-bearing and positioning assembly 20 along the lateral direction of the base assembly 30. The bearing positioning assembly 20 includes a push-pull support mechanism 21 and a bearing clamping mechanism 22. The push-pull support mechanism 21 is movably arranged on the base assembly 30 along the lateral direction of the base assembly 30. The bearing clamping mechanism 22 includes a bearing support portion 221, a bearing clamping portion 222 and a bearing driving portion 223. The bearing support portion 221 is fixedly arranged on the push-pull support mechanism 21. Two bearing clamping portions 222 are relatively arranged on the bearing support portion 221 along the lateral direction of the base assembly 30. Each bearing clamping portion 222 is movably arranged along the lateral direction of the base assembly 30. The bearing driving portion 223 is used to drive the two bearing clamping portions 222 to synchronously approach or move away from each other along the lateral direction of the base assembly 30.

[0033] The static load measurement test device 100 of the landing gear of the unmanned aerial vehicle of the present invention comprises a pressure test assembly 10, a load-bearing and positioning assembly 20 and a base assembly 30, wherein the base assembly 30 serves as an installation base for the pressure test assembly 10 and the load-bearing and positioning assembly 20, and the base assembly 30 adopts a hollow frame structure with an accommodating space 301; the load-bearing and positioning assembly 20 is slidably arranged on the base assembly 30 along the lateral direction of the base assembly 30, and when it is necessary to measure the static load of the landing gear, the load-bearing and positioning assembly 20 slides along the lateral direction of the base assembly 30 to enter the accommodating space 301. 01, so as to facilitate loading and positioning the landing gear outside the accommodating space 301, avoiding interference between the base assembly 30 and the pressure test assembly 10; the load-bearing positioning assembly 20 slides laterally along the base assembly 30 so that the load-bearing positioning assembly 20 drives the landing gear to be accommodated in the accommodating space 301, and the pressure test assembly 10 is arranged on the top of the base assembly 30, and the measuring end of the pressure test assembly 10 extends into the accommodating space 301 and is movably arranged vertically, so as to facilitate applying pressure to the landing gear positioned and loaded in the accommodating space 301 through the pressure test assembly 10 and measuring. The static load measurement test device 100 of the landing gear of the unmanned aerial vehicle of the present invention is convenient for measuring the static load of the landing gear and is easy to use.

[0034] Please refer again Figure 2 In the present invention, the load-bearing clamping part 222 is arranged to protrude from the surface of the load-bearing support part 221. The load-bearing support part 221 is used to support the landing gear from the bottom of the landing gear. The two load-bearing clamping parts 222 cooperate to clamp the landing gear from both sides to fix the landing gear on the load-bearing support part 221. It can be understood that the load-bearing driving part 223 can be a screw transmission mechanism, a gear rack transmission mechanism, and a telescopic transmission structure in which two telescopic hydraulic cylinders or pneumatic telescopic cylinders are connected through the same controller. As long as the load-bearing driving part 223 drives the two load-bearing clamping parts 222 to move synchronously in the lateral direction, the landing gear on the load-bearing support part 221 can be clamped or released in both directions.

[0035] Optionally, in the initial position, the bearing support portion 221 and the measuring end of the pressure test assembly 10 are arranged vertically opposite to each other. In the present invention, the bearing drive portion 223 drives the two bearing clamping portions 222 to synchronously approach or move away from each other along the lateral direction of the base assembly 30. When measuring the landing gear of the drone, it is convenient to quickly position and assemble the landing gear in the middle of the bearing support portion 221 (i.e., the measuring area of ​​the pressure test assembly 10), thereby avoiding the technical problem that when measuring the landing gear of the drone, it is difficult to place the landing gear of the drone in the middle of the measuring area, resulting in different monitoring data each time, and there is a large error in the detection data, resulting in low detection efficiency of the drone landing gear.

[0036] Please refer again Figure 2 and Figure 3Furthermore, the base frame assembly 30 includes an installation base plate 31, a first installation frame plate 32, a second installation frame plate 33, an installation middle partition plate 34, an installation column 35 and an installation top plate 36. The installation base plate 31, the installation middle partition plate 34 and the installation top plate 36 are arranged in sequence along the vertical direction. The first installation frame plate 32 and the second installation frame plate 33 are respectively supported between the installation base plate 31 and the installation middle partition plate 34. The installation column 35 is supported between the installation middle partition plate 34 and the installation top plate 36. An accommodating space 301 is formed between the installation middle partition plate 34 and the installation top plate 36. The pressure test assembly 10 is arranged on the installation top plate 36, and the push-pull support mechanism 21 is movably arranged on the installation middle partition plate 34 along the side. Optionally, the first mounting frame plate 32 and the second mounting plate are both rectangular plates, the mounting middle partition plate 34 is fixedly arranged on the mounting base plate 31 through the first mounting plate and the second mounting plate, and the mounting middle partition plate 34 is arranged close to the mounting base plate 31; the mounting base plate 31, the mounting middle partition plate 34 and the mounting top plate 36 are arranged in parallel, and the mounting top plate 36 is fixedly arranged on the mounting middle partition plate 34 through the mounting columns 35. It can be understood that the number of mounting columns 35 can be one or more. Specifically, the mounting base plate 31, the mounting middle partition plate 34 and the mounting top plate 36 are all rectangular plates; the first mounting frame plate 32 is arranged flush with the front edge of the mounting middle partition plate 34, and the second mounting frame plate 33 is arranged flush with the rear edge of the mounting middle partition plate 34; in order to maintain structural stability while avoiding interference when loading the landing gear, the number of mounting columns 35 is 4, and the mounting columns 35 are arranged at the corner position of the mounting middle partition plate 34.

[0037] Please refer again Figure 4 and Figure 5 Furthermore, the first mounting frame plate 32 and the second mounting frame plate 33 are arranged at intervals along the lateral direction, and the first mounting frame plate 32 is provided with an avoidance guide hole 321. The push-pull support mechanism 21 includes a push-pull bracket 211, a push-pull support plate 212, a push-pull guide rod 213 and a push-pull reset member 214. The push-pull guide rod 213 is arranged laterally, and the first end of the push-pull guide rod 213 is supported on the first mounting frame plate 32, and the second end of the push-pull guide rod 213 is supported on the second mounting frame plate 33. The push-pull support plate 212 is provided with a push-pull guide hole corresponding to the push-pull guide rod 213. The push-pull guide rod 213 is arranged through the push-pull guide hole to guide the push-pull support plate 212 to move laterally between the first mounting frame plate 32 and the second mounting frame plate. The push-pull reset member 214 is elastically loaded between the first mounting frame plate 32 and the push-pull support plate 212 to drive the push-pull support plate 212 to move laterally toward the second mounting frame plate 33. It can be understood that in order to guide the push-pull support plate 212 to move laterally and prevent the push-pull support plate 212 from swinging when moving laterally, there are multiple push-pull guide rods 213, and the multiple push-pull guide rods 213 are arranged at intervals in the transverse direction, and the push-pull guide holes are arranged one by one corresponding to the push-pull guide rods 213. Preferably, there are two push-pull guide rods 213.

[0038] Optionally, the push-pull reset member 214 may be a reset elastic rubber or a reset spring, as long as the push-pull support plate 212 is driven to move laterally toward the second mounting frame plate 33 by the elastic restoring force of the push-pull reset member 214, and then reset. Preferably, the push-pull reset member 214 adopts a reset spring, which is arranged one by one on the push-pull guide rod 213, and the reset spring is sleeved on the corresponding push-pull guide rod 213, and the two ends of the reset spring are respectively in contact with the side wall surfaces of the first mounting frame plate 32 and the second mounting frame plate.

[0039] Further, the push-pull bracket 211 adopts a U-shaped frame with a lateral opening, and the push-pull bracket 211 is inserted and installed on the installation partition 34 through the lateral opening. The push-pull bracket 211 includes an upper support plate and a lower support plate arranged along the vertical interval and a side support plate for fixing the upper support plate and the lower support plate. The upper support plate is arranged on the installation partition 34, and the end of the lower support plate away from the side support plate passes through the avoidance guide hole 321 and is fixedly connected to the push-pull support plate 212. Optionally, in order to facilitate the lateral sliding of the push-pull bracket 211, the side wall surface of the push-pull bracket 211 is flush with the hole wall surface of the avoidance guide hole 321.

[0040] Furthermore, the base frame assembly 30 also includes a limit stop bar 37 and a first sliding guide portion 38. One side of the mounting base plate 31 extends outward to the outside of the second mounting frame plate 33. The limit stop bar 37 is fixedly arranged on the protruding side of the mounting base plate 31 along the transverse direction. The first sliding guide portion 38 is fixedly arranged on the protruding side of the mounting base plate 31 along the lateral direction. The first sliding guide portion 38 is arranged between the first mounting frame plate 32 and the limit stop bar 37. The push-pull support mechanism 21 also includes a side front plate for supporting the side support plate on the protruding side of the mounting base plate 31. The top of the side front plate is fixedly connected to the side support plate, and the bottom of the side front plate is provided with a second sliding guide portion cooperating with the first sliding guide portion 38. It can be understood that the first sliding guide portion 38 adopts a guide slider protruding from the upper surface of the mounting base plate 31, and the second sliding guide portion adopts a guide groove recessed on the first mounting frame plate 32, or the first sliding guide portion 38 adopts a guide groove recessed on the first mounting frame plate 32, and the second sliding guide portion adopts a guide slider protruding from the lower surface of the first mounting frame plate 32.

[0041] In the present invention, a U-shaped frame with a lateral opening is used to set the push-pull bracket 211, the push-pull bracket 211 is supported from the front side of the push-pull bracket 211 by the front side plate 215, and the push-pull bracket 211 is supported from the rear side of the push-pull bracket 211 by the push-pull support plate 212. The push-pull bracket 211 is inserted and installed on the installation partition plate 34 through the lateral opening, so that the push-pull bracket 211 is stably supported on the installation base plate 31, thereby preventing the push-pull bracket 211 from swinging vertically when it moves laterally; the first sliding guide part 38 is fixedly arranged on the protruding side of the installation base plate 31 laterally, and the bottom of the side front plate is provided with a second sliding guide part that cooperates with the first sliding guide part 38. Under the auxiliary action of the push-pull guide rod 213, the push-pull bracket 211 is prevented from swinging when it moves laterally; the push-pull bracket 211 is limited by providing a limit bar 37 to prevent the push-pull bracket 211 from completely separating from the installation partition plate 34.

[0042] Furthermore, in order to facilitate pulling the push-pull bracket 211, a force applying handle is provided on the side support plate.

[0043] Furthermore, the base frame assembly 30 further includes a limiting guide frame 391 and a limiting guide rod 392. The limiting guide frame 391 is fixedly mounted on the mounting middle partition plate 34, and the limiting guide rod 392 is movably mounted on the limiting guide frame 391 in the vertical direction. The limiting guide rod 392 moves vertically and cooperates with the push-pull support plate 212 to position the push-pull support plate 212. In specific use, if the landing gear needs to be loaded, the push-pull support 211 is pulled out (the push-pull support plate 212 moves synchronously at this time), and then the limiting guide rod 392 is vertically lowered so that the limiting guide rod 392 is located behind the push-pull support plate 212 to limit the push-pull support plate 212, which is convenient for loading the landing gear. After loading the landing gear, the limiting guide rod 392 is vertically moved upward, and then the push-pull support 211 is automatically reset under the elastic force of the reset spring, which is convenient to use.

[0044] Furthermore, the first end of the load-bearing clamping portion 222 is arranged to protrude from the upper surface of the load-bearing support portion 221, and the second end of the load-bearing clamping portion 222 extends outward to the outside of the load-bearing support portion 221 and is bent. The load-bearing driving portion 223 includes a transmission screw and a balance rod arranged along the horizontal direction through the load-bearing support portion 221. The two ends of the transmission screw are respectively protruding from the side of the load-bearing support portion 221, and the threads at the two ends of the transmission screw are rotated in opposite directions. The second end of the load-bearing clamping portion 222 is connected to the corresponding externally extending threaded end of the transmission screw through a threaded fit, and the second end of the load-bearing clamping portion 222 is fixedly connected to the externally extending end of the corresponding balance rod, and the two load-bearing clamping portions 222 are driven to approach or move away synchronously by the rotation of the transmission screw.

[0045] Optionally, in the present invention, the externally extending threaded end of the transmission screw is disposed through the second end of the bearing clamping portion 222 and is provided with a rotating handle.

[0046] Furthermore, in order to facilitate the lateral movement of the bearing clamping part 222, first sliding guide parts are respectively provided on the side wall surfaces on both sides of the bearing support part 221, and the first sliding guide parts are arranged in the lateral direction. A gate-shaped clamping frame is provided at the first end of the bearing clamping part 222, and second sliding guide parts cooperating with the first sliding guide parts are respectively provided on the side walls on both sides of the clamping frame. Specifically, the bearing support part 221 adopts a bearing support plate, and guide sliders are respectively convexly provided on the side walls on both sides of the clamping frame, and guide slide grooves corresponding to the guide sliders are concavely provided on the side walls of the bearing support plate, and the guide slide grooves are arranged extending in the lateral direction, or guide grooves are respectively concavely provided on the side walls on both sides of the clamping frame, and guide blocks corresponding to the guide grooves are convexly provided on the side walls of the bearing support plate, and the guide blocks are arranged extending in the lateral direction.

[0047] Please refer again Figure 6 Furthermore, the pressure testing assembly 10 includes a lifting drive unit 11 and a pressure sensor 12. The fixed end of the lifting drive unit 11 is fixedly arranged on the base assembly 30. The movable end of the lifting drive unit 11 passes through the top surface of the base assembly 30 and extends into the accommodating space 301. The pressure sensor 12 is arranged on the lifting end of the lifting drive unit 11.

[0048] Further, the lifting drive unit 11 includes a lifting drive 111, a lifting linkage plate 112, a lifting linkage column 113, a buffer spring 114 and a sensor mounting plate. The mounting end of the lifting drive 111 is fixedly arranged on the upper surface of the base assembly 30. The lifting linkage plate 112 is arranged on the telescopic end of the lifting drive 111. The first end of the lifting linkage column 113 is fixedly connected to the lifting linkage plate 112. The second end of the lifting linkage column 113 extends vertically and passes through the upper surface of the base assembly 30 and extends into the accommodating space 301 and is fixedly connected to the sensor mounting plate. The lifting linkage column 113 is movably arranged vertically. The buffer spring 114 is sleeved on the second end of the lifting linkage column 113 and is arranged between the upper surface of the sensor mounting plate and the bottom surface of the mounting top plate 36. Optionally, the lifting drive 111 can be one of a hydraulic telescopic rod and an electric telescopic rod; the number of the lifting linkage column 113 can be multiple, and the multiple lifting linkage columns 113 are arranged at intervals along the four directions of the lifting linkage plate 112. Specifically, lift linkage columns 113 are provided at the four corner positions of the lift linkage plate 112 .

[0049] The working principle of the present invention is as follows: when it is necessary to detect the static load of the landing gear of the drone, the staff pulls the force-applying handle so that the force-applying handle drives the push-pull bracket 211 to move sideways to one side, and under the joint guidance of the push-pull guide rod 213, the avoidance guide hole 321 and the first sliding guide part, the push-pull bracket 211 moves along the avoidance guide hole 321 provided on the first support frame plate, so that the push-pull bracket 211 drives the push-pull support plate 212 and the front support plate fixed at both ends of the bottom to move synchronously, and the support of the push-pull support plate 212 and the front support plate is The push-pull bracket 211 drives the top load-bearing support part 221 to move to the outside, and the limit guide rod 392 is pressed downward, so that the two limit guide rods 392 move downward, so that the two limit guide rods 392 are blocked at both ends of the push-pull support plate 212, and the UAV landing gear is placed on the top of the load-bearing support part 221, and the transmission screw is rotated. When the transmission screw rotates, the two load-bearing clamping parts 222 are respectively driven to move synchronously toward each other on the surface of the load-bearing support part 221, so that the two load-bearing clamping parts 222 are stably clamped on the UAV landing gear. The two ends of the frame just make the drone landing gear in the middle position of the load-bearing support part 221, pull out the limit guide rod 392 upward, and through the elastic deformation of the push-pull reset member 214 loaded on the push-pull support plate 212 and the first mounting frame plate 32 support, the push-pull support plate 212 drives the push-pull support 211 to move stably in the direction of the second mounting frame plate 33 to reset, start the lifting drive 111, so that the sensor mounting plate moves downward in the accommodating space 301, and the pressure sensor 12 moves synchronously with the sensor mounting plate and stably presses on the drone The top of the UAV landing gear is conveniently measured by the pressure sensing of the pressure sensor 12, thereby conveniently measuring the static load of the UAV landing gear, increasing the accuracy of the UAV landing gear data, increasing the convenience of UAV landing gear production, and facilitating the improvement of the practicality of the UAV landing gear. Through the elastic deformation of the buffer spring 114, the sensor mounting plate and the pressure sensor 12 are buffered and protected, thereby reducing collision vibration and thus reducing damage to the pressure sensor 12, thereby increasing the accuracy of the static load of the UAV landing gear.

[0050] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A static load measurement test device for a drone landing gear, characterized in that: The invention comprises a pressure test assembly, a load-bearing and positioning assembly for positioning and installing a landing gear, and a base frame assembly used as an installation base, wherein the base frame assembly adopts a hollow frame structure with an accommodating space, the pressure test assembly is arranged on the top of the base frame assembly, the measuring end of the pressure test assembly extends into the accommodating space and is movably arranged in the vertical direction, the load-bearing and positioning assembly is slidably arranged on the base frame assembly along the lateral direction of the base frame assembly, and the load-bearing and positioning assembly is accommodated in the accommodating space or moved out of the accommodating space by sliding the load-bearing and positioning assembly along the lateral direction of the base frame assembly. The load-bearing positioning assembly includes a push-pull support mechanism and a load-bearing clamping mechanism. The push-pull support mechanism is movably arranged on the base frame assembly along the lateral direction of the base frame assembly. The load-bearing clamping mechanism includes a load-bearing support portion, a load-bearing clamping portion and a load-bearing driving portion. The load-bearing support portion is fixedly arranged on the push-pull support mechanism. Two load-bearing clamping portions are relatively arranged on the load-bearing support portion along the lateral direction of the base frame assembly. Each of the load-bearing clamping portions is movably arranged along the lateral direction of the base frame assembly. The load-bearing driving portion is used to drive the two load-bearing clamping portions to synchronously approach or move away from each other along the lateral direction of the base frame assembly. The base frame assembly includes a mounting base plate, a first mounting frame plate, a second mounting frame plate, a mounting middle partition plate, a mounting column and a mounting top plate, wherein the mounting base plate, the mounting middle partition plate and the mounting top plate are arranged in sequence in a vertical direction, the first mounting frame plate and the second mounting frame plate are respectively supported between the mounting base plate and the mounting middle partition plate, the mounting column is supported between the mounting middle partition plate and the mounting top plate, the accommodating space is formed between the mounting middle partition plate and the mounting top plate, the pressure test assembly is arranged on the mounting top plate, and the push-pull support mechanism is movably arranged on the mounting middle partition plate laterally. The first mounting frame plate and the second mounting frame plate are arranged at intervals along the lateral side, and an avoidance guide hole is provided on the first mounting frame plate. The push-pull support mechanism includes a push-pull bracket, a push-pull support plate, a push-pull guide rod and a push-pull reset member. The push-pull guide rod is arranged along the lateral side, and the first end of the push-pull guide rod is supported on the first mounting frame plate, and the second end of the push-pull guide rod is supported on the second mounting frame plate. The push-pull support plate is provided with a push-pull guide hole corresponding to the push-pull guide rod, and the push-pull guide rod is arranged through the push-pull guide hole to guide the push-pull support plate to move laterally between the first mounting frame plate and the second mounting frame plate, and the push-pull reset member is elastically loaded between the first mounting frame plate and the push-pull support plate to drive the push-pull support plate to move laterally toward the second mounting frame plate.

2. The static load measurement test device for the landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The push-pull bracket adopts a U-shaped frame with a lateral opening. The push-pull bracket is inserted on the installation middle partition through the lateral opening. The push-pull bracket includes an upper support plate and a lower support plate arranged along the vertical interval and a side support plate for fixedly connecting the upper support plate and the lower support plate. The upper support plate is arranged on the installation middle partition, and the end of the lower support plate away from the side support plate passes through the avoidance guide hole and is fixedly connected to the push-pull support plate.

3. The static load measurement test device for the UAV landing gear according to claim 2, characterized in that: The base frame assembly further includes a limit stop bar and a first sliding guide portion, one side of the mounting base plate extends outwardly to the outside of the second mounting frame plate, the limit stop bar is fixedly arranged on the outwardly extending side of the mounting base plate in a transverse direction, the first sliding guide portion is fixedly arranged on the outwardly extending side of the mounting base plate in a lateral direction, and the first sliding guide portion is arranged between the first mounting frame plate and the limit stop bar, The push-pull support mechanism also includes a side front plate for supporting the side support plate on the extended side of the mounting base plate, the top of the side front plate is fixedly connected to the side support plate, and the bottom of the side front plate is provided with a second sliding guide portion that cooperates with the first sliding guide portion.

4. The static load measurement test device for the landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The base frame assembly also includes a limit guide frame and a limit guide rod. The limit guide frame is fixed on the installation middle partition, and the limit guide rod is movably provided on the limit guide frame along the vertical direction. The limit guide rod moves vertically and cooperates with the push-pull support plate to position the push-pull support plate.

5. The static load measurement test device for the landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The first end of the load-bearing clamping portion is protruding from the upper surface of the load-bearing support portion, and the second end of the load-bearing clamping portion extends outward to the outside of the load-bearing support portion and is bent. The bearing drive part includes a transmission screw and a balance rod arranged transversely through the bearing support part, the two ends of the transmission screw are respectively protruding from the side of the bearing support part, and the threads at the two ends of the transmission screw have opposite rotation directions. The second end of the load-bearing clamping part is connected to the corresponding outwardly extending threaded end of the transmission screw through threaded cooperation, and the second end of the load-bearing clamping part is fixedly connected to the corresponding outwardly extending end of the balance rod, and the two load-bearing clamping parts are driven to approach or move away synchronously by the rotation of the transmission screw.

6. The static load measurement test device for the landing gear of a UAV according to claim 5, characterized in that: The side wall surfaces on both sides of the bearing support portion are respectively provided with first sliding guide portions, and the first sliding guide portions are arranged in a transverse direction. A door-shaped clamping frame is disposed at the first end of the load-bearing clamping portion, and second sliding guide portions cooperating with the first sliding guide portions are respectively disposed on side walls on both sides of the clamping frame.

7. The static load measurement test device for the landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The pressure testing assembly includes a lifting drive unit and a pressure sensor. The fixed end of the lifting drive unit is fixed on the base frame assembly, the movable end of the lifting drive unit passes through the top surface of the base frame assembly and extends into the accommodating space, and the pressure sensor is arranged on the lifting end of the lifting drive unit.

8. The static load measurement test device for the landing gear of a UAV according to claim 7, characterized in that: The lifting drive part includes a lifting drive motor, a lifting linkage plate, a lifting linkage column, a buffer spring and a sensor mounting plate. The mounting end of the lifting drive motor is fixedly arranged on the upper surface of the base frame assembly. The lifting linkage plate is provided on the telescopic end of the lifting drive motor. The first end of the lifting linkage column is fixedly connected to the lifting linkage plate. The second end of the lifting linkage column extends vertically and passes through the upper surface of the base frame assembly and extends into the accommodating space and is fixedly connected to the sensor mounting plate. The lifting linkage column is movably arranged vertically. The buffer spring is sleeved on the second end of the lifting linkage column and is arranged between the upper surface of the sensor mounting plate and the bottom surface of the mounting top plate.

Images