Agricultural unmanned aerial vehicle framework strength continuous testing device and testing method

Abstract

The invention belongs to the field of unmanned aerial vehicle framework testing, and discloses an agricultural unmanned aerial vehicle framework strength continuous testing device and a testing method.The agricultural unmanned aerial vehicle framework strength continuous testing device comprises a supporting shell and a framework body, the framework body is located at the upper end of the inner side of the supporting shell and slidably installed on the inner side of a sliding groove, and a pushing rod is arranged at one end of the framework body; a supporting assembly is fixed to the upper end face of the supporting shell. A threaded seat is hinged to the middle of the guide rail on one side of the framework body, a threaded rod is in threaded connection with the inner side of the threaded seat, and a driving assembly is fixed to the upper end of the threaded rod; an ice block supporting frame is arranged on the framework body, a mold is slidably arranged on the inner side of the ice block supporting frame, an ice collecting table is arranged on the side, close to the framework body, of the ice block supporting frame, the framework body is fixed through a supporting assembly, then the framework body is driven by a pushing rod to collide with ice blocks in a parallel state, and it can be simulated that when a hull breaks ice for a long time; the strength state of the unmanned aerial vehicle framework at the moment can be detected according to the state of the framework body under the pressure of ice blocks for a long time.

Description

Technical Field

[0001] The present invention relates to the field of UAV skeleton testing, and in particular to a continuous testing device and method for the skeleton strength of an agricultural UAV. Background Art

[0002] Using drone ships to sow fish fry in winter is an efficient agricultural technology application. This technology mainly uses the precision guidance and programmed farming capabilities of drones to scientifically calculate the area, sowing amount, and dosage of the field, and implements sowing through a calculation program. However, when the temperature is below zero, the water surface freezes, and the drone ship needs to break through the ice on the water surface during driving to move smoothly. The strength of the drone ship's skeleton must be tested before use to reduce the situation where it is squeezed by ice blocks and severely deformed during the ice-breaking process;

[0003] However, a seeding drone skeleton testing system with publication number CN117554015A, when testing the hull skeleton, uses an ice cube launching assembly to launch ice cubes at the ship skeleton, and uses the force of the ice cubes hitting the skeleton to test the strength of the skeleton. However, when the drone adopts different methods to break ice, the force point and force direction of the ship skeleton are changed by the launching tube. At this time, the movement path of the ice cubes launched by the ice cube launching assembly of a seeding drone skeleton testing system is horizontal, and it is difficult to test the strength of the skeleton under the bow. At the same time, the collision force will continue to increase with the continuous squeezing of the floating ice in the icebreaking state, so that the skeleton body needs to withstand long-term ice pressure, and when the ice cubes in the ice cube launcher hit the skeleton body, the force exerted on the skeleton body is an instantaneous shear force, so that when simulating the state of continuous icebreaking, the force on the skeleton is inaccurate. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a continuous testing device and method for the strength of the skeleton of an agricultural UAV, which solves the problem in the prior art that the stress points of the ship skeleton change when the UAV ship adopts different icebreaking methods, and the movement path of the ice launched by the ice launch assembly is in a horizontal state, making it difficult to test the skeleton strength at different positions in the hull skeleton. At the same time, during the icebreaking process, the skeleton body needs to withstand long-term ice pressure, and the collision force will continue to increase with the continuous squeezing of the floating ice, so that the pressure on the skeleton body is greater, and the strength requirements of the skeleton body are higher.

[0005] The purpose of this disclosure can be achieved through the following technical solutions:

[0006] A continuous testing device for the strength of an agricultural drone skeleton, comprising: a support shell and a skeleton body, wherein the skeleton body is located at the inner upper end of the support shell, and a plurality of slide grooves are fixed on the inner wall of the support shell, the skeleton body is slidably mounted on the inner side of the slide grooves, a propulsion rod is arranged at one end of the skeleton body, and a support assembly is fixed on the upper end surface of the support shell;

[0007] The support assembly includes a guide rail, a support seat, a threaded seat and a threaded rod. The guide rails are slidably arranged on both sides of the skeleton body, and a plurality of support seats are inserted on the side of the guide rail away from the skeleton body. A threaded seat is hingedly connected to the middle part of the guide rail on one side of the skeleton body. The inner side of the threaded seat is threadedly connected to a threaded rod, and a driving assembly is fixed to the upper end of the threaded rod.

[0008] An ice cube support frame is fixed to the end of the skeleton body away from the pushing rod, and a mold is slidably arranged on the inner side of the ice cube support frame, and an ice collecting platform is arranged on the side of the ice cube support frame close to the skeleton body, and a support frame fixed to the upper end surface of the support shell is arranged directly above the ice collecting platform, an extrusion assembly is arranged above the skeleton body, and the extrusion assembly includes a first cylinder and a push plate, and a first cylinder penetrating the support frame is arranged in the middle of the support frame, and a push plate is fixed to the output end of the first cylinder, and an ice pushing assembly is arranged on the side of the mold away from the support frame.

[0009] In some disclosures, protrusions adapted to the guide rails are provided on both sides of the skeleton body, and the moving path of the skeleton body is the same as the path of the guide rails.

[0010] In some disclosures, a guide rod is provided at one end of the skeleton body away from the threaded rod, and an optical seat is slidably provided on the outer wall of the guide rod, the position of the optical seat corresponds to the position of the threaded seat, and the optical seat is rotatably connected to the guide rail.

[0011] In some disclosures, the drive assembly includes a turbine, a worm and a handwheel, the upper end of the threaded rod is coaxially fixed with a turbine, the outer side of the turbine is meshed with a worm, and the handwheel is fixed to the end of the worm away from the skeleton body.

[0012] In some disclosures, an ice collecting platform is disposed directly below the ice cube support frame, and a second cylinder is disposed inside the ice collecting platform. When the mold is located on the ice cube support frame, the second cylinder is located directly below the mold.

[0013] In some disclosures, a plurality of support rods are symmetrically distributed on both sides of the ice support rack, and a plurality of support plates are rotatably provided on the outer sides of the support rods, and a blocking rod is provided on the upper side of one end of the support plate away from the mold.

[0014] In some disclosures, a limiting protrusion is fixed to one side of the ice cube support frame close to the support frame, and the position of the limiting protrusion corresponds to the position of the mold.

[0015] In some disclosures, the ice collecting table includes a filter plate, a support table and a water filter hole, a filter plate is fixed to the side of the ice support frame away from the ice pushing assembly, a support table is provided at the end of the filter plate, and a water filter hole is penetrated through the bottom of the support table, a limiting plate is fixed to the side wall of the ice support frame, an ice maker is provided at the end of the ice collecting table away from the filter plate, and the water inlet hole of the ice maker is connected to the water filter hole.

[0016] In some disclosures, the ice pushing assembly includes a third cylinder and an ice pushing plate, the ice pushing plate is slidably arranged between the mold and the limiting plate, and the third cylinder is fixed on the side of the ice pushing plate away from the mold, and the third cylinder passes through the ice pushing plate, and a telescopic rod is fixed to the lower end of the third cylinder.

[0017] A method for continuously testing the strength of an agricultural drone skeleton comprises the following steps:

[0018] S1. When in use, the skeleton body is slidably installed on the inner side of the guide rail along the protrusions on both sides, and then the hand wheel is turned to drive the worm to rotate, thereby driving the turbine and the threaded rod to rotate coaxially until the position of the ice layer corresponds to the position of the skeleton body after being loaded with fry, at which time both ends of the guide rail are fixed by the support seat;

[0019] S2, when simulating the continuous ice breaking method, the push rod pushes the skeleton body to move along the guide rail toward the end away from the push rod, and at the same time, the third cylinder pushes the ice pushing plate forward until the ice in the mold corresponding to the ice pushing assembly is pushed out;

[0020] S3. When a group of ice cubes are smashed, the second cylinder extends upward and pushes multiple molds upward, so that the molds with ice cubes are moved to a state parallel to the ice-pushing assembly, and the molds in the original position move upward, and the ice cubes collide with the skeleton body, thereby testing the strength of the front end surface of the skeleton body at the current height of the continuous ice-breaking method. If the waterline of the hull moves upward after the test fry is released, the height of the skeleton body is adjusted by the driving assembly to simulate the relative position of the ice cubes and the skeleton body after the waterline is shortened;

[0021] S4, at this time, the broken small ice cubes, ice debris and water fall on the filter plate, the ice debris and water flow downward along the filter holes on the filter plate, and the small ice cubes slide along the filter plate toward the support table and accumulate on the support table;

[0022] S5. Then test the impact-type icebreaking method. First, separate the support seat from the guide rail, and then start the first cylinder. The first cylinder drives the push plate to slide downward until it contacts the upper end surface of the bow of the skeleton body, so that the skeleton body rotates clockwise with the threaded seat as the center of the circle. At this time, the small ice cube on the support platform is located directly below the skeleton body. When the bow part of the skeleton body moves downward, it can hit the small ice cube. The impact force between the skeleton body and the ice cube is changed by changing the propulsion speed of the first cylinder, and the strength of the skeleton body is tested by observing the deformation degree on the skeleton body and the force application speed of the first cylinder.

[0023] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0024] A fixed connection is one where the parts or components are fixed without any relative movement;

[0025] A rotational connection is a connection between parts that allows the parts to rotate relative to each other;

[0026] Threaded connection is a detachable fixed connection with the advantages of simple structure, reliable connection, and convenient assembly and disassembly. It is widely used in the fields of mechanical engineering and connection structures.

[0027] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0028] Beneficial effects of the present disclosure:

[0029] 1. Fix the skeleton body through the support assembly, and then drive the skeleton body to collide with the parallel ice blocks through the propulsion rod. It can also simulate the state of the skeleton body being under the pressure of ice blocks for a long time when the hull is breaking ice for a long time, so as to simulate the strength bearing capacity of the UAV skeleton under the state of long-term ice breaking.

[0030] 2. Through the cooperation of the extrusion component and the support component, different ice-breaking methods of the hull and the movement methods of the skeleton body can be simulated. When testing the extrusion ice-breaking method, the stress points of the skeleton body and the ice are at the front lower end surface. When simulating ice-breaking, the front lower end surface of the skeleton body is pressed downward by the first cylinder to hit the ice on the ice collecting platform, and the impact force between the skeleton body and the ice surface is changed by increasing the descending speed of the first cylinder, so as to achieve strength testing of the simulated skeleton body for different stress points and directions when using different ice-breaking methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present disclosure;

[0033] Figure 2 is a schematic diagram of an exploded structure of an embodiment of the present disclosure;

[0034] Figure 3 is a schematic diagram of the connection structure between the skeleton body and the support assembly of the embodiment of the present disclosure;

[0035] Figure 4 is a schematic diagram of the overall structure of the support shell, support assembly and extrusion assembly of an embodiment of the present disclosure;

[0036] Figure 5 It is a schematic diagram of the connection structure of the ice support frame, the ice collecting platform and the ice pushing assembly of the embodiment of the present disclosure;

[0037] Figure 6 This is an embodiment of the present disclosure Figure 5 Another perspective overall structure diagram;

[0038] Figure 7 Schematic diagram of the top view of the ice support frame, ice collecting platform and second cylinder of the embodiment of the present disclosure

[0039] Figure 8 This is an embodiment of the present disclosure Figure 7 AA section diagram in;

[0040] In the figure: 1, support shell; 101, slide groove; 2, skeleton body; 201, protrusion; 3, push rod; 4, support assembly; 41, guide rail; 42, support seat; 43, threaded seat; 44, threaded rod; 45, drive assembly; 401, guide rod; 402, light seat; 451, turbine; 452, worm; 453, hand wheel; 5, support frame; 6, extrusion assembly; 61, first cylinder; 62, push plate; 7, ice support frame; 71, support rod; 72, support plate; 73, stop rod; 711, limit protrusion; 8, ice collecting table; 81, filter plate; 82, support table; 83, water filter hole; 9, mold; 10, ice maker; 11, limit plate; 12, ice pushing assembly; 121, third cylinder; 122, ice pushing plate; 1201, telescopic rod; 13, second cylinder. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0042] Please refer to Figures 1 to 8 A continuous testing device for the strength of an agricultural drone skeleton comprises a support shell 1 and a skeleton body 2, wherein the skeleton body 2 is located at the inner upper end of the support shell 1, and a plurality of slide grooves 101 are fixed on the inner wall of the support shell 1, the skeleton body 2 is slidably mounted on the inner side of the slide grooves 101, a propulsion rod 3 is provided at one end of the skeleton body 2, and a support assembly 4 is fixed on the upper end surface of the support shell 1;

[0043] The support assembly 4 includes a guide rail 41, a support seat 42, a threaded seat 43 and a threaded rod 44. The guide rails 41 are slidably arranged on both sides of the skeleton body 2, and a plurality of support seats 42 are inserted on the side of the guide rail 41 away from the skeleton body 2. The middle part of the guide rail 41 on one side of the skeleton body 2 is hinged with a threaded seat 43, the inner side of the threaded seat 43 is threadedly connected with a threaded rod 44, and the upper end of the threaded rod 44 is fixed with a driving assembly 45;

[0044] An ice cube support frame 7 is fixed to the end of the skeleton body 2 away from the pushing rod 3, and a mold 9 is slidably arranged on the inner side of the ice cube support frame 7, and an ice collecting platform 8 is arranged on the side of the ice cube support frame 7 close to the skeleton body 2, and a support frame 5 fixed to the upper end surface of the support shell 1 is arranged directly above the ice collecting platform 8, an extrusion assembly 6 is arranged above the skeleton body 2, and the extrusion assembly 6 includes a first cylinder 61 and a push plate 62, and a first cylinder 61 penetrating the support frame 5 is arranged in the middle of the support frame 5, and a push plate 62 is fixed to the output end of the first cylinder 61, and an ice pushing assembly 12 is arranged on the side of the mold 9 away from the support frame 5.

[0045] In use, the skeleton body 2 is slidably mounted on the inner side of the guide rail 41 along the two-sided protrusions 201, and then the driving assembly 451 is rotated to adjust the height of the guide rail 41 and the skeleton body 2. When simulating the continuous ice-breaking method, the skeleton body 2 is pushed along the guide rail 41 away from the end of the push rod 3 by the push rod 3. The push rod 3 is located at the stern of the skeleton body 2, and the end of the skeleton body 2 away from the push rod 3 is the bow, until it collides with the ice layer, so as to detect the strength of the front end face of the skeleton body 2 at the current height. The thrust of the propeller is simulated by the push rod 3, and the support assembly 4 is used to simulate the change in the collision position between the skeleton body 2 and the ice layer before and after the fry in the ship's body are released. The specific method is to rotate the driving assembly 45 to drive the threaded rod 44 to rotate, and use the thread between the threaded rod 44 and the threaded seat 43 to drive the threaded seat 43 and the guide rail 41 to slide upward along the chute 101. During the test, the height of the ice block remains unchanged, so that when the driving assembly 45 rotates, the relative position between the skeleton body 2 and the ice layer can be changed, thereby simulating that after the fry are released, the skeleton body 2 moves upward relative to the ice surface. At this time, the front end of the skeleton body 2 after rising collides with the ice layer, and the shear resistance at the current position of the skeleton body 2 can be recorded, and the deformation of the skeleton body 2 can be observed. By detecting the strength of the front end face of the skeleton body 2 at different heights before and after the fry are sown before and after the skeleton body 2 rises; at the same time, if the skeleton body 2 deforms when testing the strength of the skeleton body 2 before the skeleton body 2 rises, and then the height of the same skeleton body 2 is adjusted by the support assembly 4, the influence of the front end face of the deformed skeleton body 2 on the skeleton strength after the water level rises when the position of the subsequent ice surface changes can be tested. During the process of the push rod 3 pushing the skeleton body 2 forward, the ice layer located in the mold 9 is pushed outwards by the ice-pushing assembly 12, which facilitates the collision between the skeleton body 2 and the ice layer. The mold 9 is in a shape of a double-square frame, so that the ice layer inside it is a whole long plate-shaped, so as to simulate the ice layer on the water surface during the simulation process. The ice-breaking situation during use is simulated by the skeleton body 2 hitting the plate-shaped ice block. In one case, by setting an ice block launching assembly, by adjusting the launching force of the ice block, the strength of the skeleton body 2 is tested. However, when the ice block hits the skeleton body 2, the vertical design ice acting force on the skeleton body 2 is determined to obtain the vertical design ice acting bending moment and shear force. During the ice-breaking process, the skeleton body 2 needs to bear the ice pressure for a long time, and the collision force will continuously increase with the continuous extrusion of the floating ice, so that the pressure borne by the skeleton body 2 is greater, and the strength requirement for the skeleton body 2 is higher. By setting the ice layer in a plate shape when simulating the ice-breaking of the ship's hull, the pressure on the skeleton body 2 and the ice-breaking state are more in line with the situation of floating ice accumulation during continuous ice-breaking, so that the detection of the strength of the skeleton body 2 during continuous ice-breaking is more accurate.

[0046] After the strength test of the front end of the skeleton body 2 of the continuous icebreaking method is completed, the bow of the skeleton body 2 is located directly below the first cylinder 61, and the plate-like ice layer collides with the skeleton body 2 to break the ice into smaller pieces of ice, which fall onto the ice collecting platform 8 and accumulate on the ice collecting platform 8. In the impact icebreaking method, the bow is slightly lifted upward, and the weight of the hull is used to break the ice. At this time, the contact surface between the ice layer and the skeleton body 2 is the lower end surface of the bow of the skeleton body 2. At this time, the bow of the skeleton body 2 is just located directly below the first cylinder 61, and the impact icebreaking method can be directly simulated, thereby testing the strength of the lower bow of the skeleton body 2. To test the strength of the end face, first separate the support seat 42 from the guide rail 41, and then start the first cylinder 61. The first cylinder 61 drives the push plate 62 to slide downward until it contacts the upper end face of the bow of the skeleton body 2, so that the skeleton body 2 rotates clockwise along the threaded seat 43 as the center of the circle. At this time, the broken small ice cubes are located directly below the skeleton body 2. When the bow part of the skeleton body 2 moves downward, it can hit the small ice cubes. The impact force between the skeleton body 2 and the ice cubes can be changed by changing the propulsion speed of the first cylinder 61, and the strength of the skeleton body 2 can be tested by observing the deformation degree on the skeleton body 2 and the force application speed of the first cylinder 61.

[0047] Please refer to Figure 3 , protrusions 201 adapted to the guide rails 41 are provided on both sides of the skeleton body 2, and the moving path of the skeleton body 2 is the same as the path of the guide rails 41;

[0048] The protrusion 201 of the skeleton body 2 is inserted into the inner side of the guide rail 41, and the skeleton body 2 is driven to slide forward along the guide rail 41 during the advancement of the advancement rod 3. The guide rail 41 and the protrusion 201 are inserted into each other to limit the movement path of the skeleton body 2, and it is beneficial to improve the stability of the movement of the skeleton body 2.

[0049] Please refer to Figures 2 to 4 A guide rod 401 is provided at one end of the skeleton body 2 away from the threaded rod 44, and an optical seat 402 is slidably provided on the outer wall of the guide rod 401, the position of the optical seat 402 corresponds to the position of the threaded seat 43, and the optical seat 402 is rotatably connected to the guide rail 41;

[0050] When in use, the optical seat 402 is slidably connected to the outer side of the guide rod 401. At the same time, the optical seat 402 is rotatably connected to the corresponding guide rail 41, and the position of the optical seat 402 is set parallel to the position of the threaded seat 43. The guide rod 401 and the optical seat 402 provide support for the other side of the skeleton body 2, which is beneficial to improve the stability of the skeleton body 2.

[0051] Please refer to Figure 1The driving assembly 45 includes a turbine 451, a worm 452 and a handwheel 453. The turbine 451 is coaxially fixed to the upper end of the threaded rod 44, and the worm 452 is meshed on the outer side of the turbine 451, and the handwheel 453 is fixed to the end of the worm 452 away from the skeleton body 2.

[0052] When in use, the hand wheel 453 is turned to drive the worm 452 to rotate, so that the worm 452 is engaged with the turbine 451, thereby driving the threaded rod 44 to rotate, thereby driving the skeleton body 2 to move up and down, and at the same time, the driving component 45 drives the threaded rod 44 to rotate in a manner that the turbine 451 and the worm 452 are engaged. Since the turbine 451 and the worm 452 have a self-locking function when they are engaged, it can prevent the skeleton body 2 from automatically moving downward during the test, thereby accidentally changing the contact position between the ice cube and the skeleton body 2, causing the test data to be inaccurate.

[0053] An ice collecting platform 8 is arranged directly below the ice cube support frame 7, and a second cylinder 13 is arranged on the inner side of the ice collecting platform 8. When the mold 9 is located on the ice cube support frame 7, the second cylinder 13 is located directly below the mold 9. A plurality of support rods 71 ​​are symmetrically distributed on both sides of the ice cube support frame 7, and a plurality of support plates 72 are rotatably arranged on the outer sides of the support rods 71. A blocking rod 73 is arranged on the upper side of one end of the support plate 72 away from the mold 9.

[0054] Please refer to Figure 1 , Figures 6 to 8 When in use, the second cylinder 13 is placed at the inner bottom of the ice cube support frame 7, and the second cylinder 13 is placed vertically, and its output end moves upward to push the mold 9 with ice cubes to the bottom support plate 72, so that the support plate 72 at the lower end surface of the mold 9 rotates along the corresponding support rod 71, but the upper end surface of the support plate 72 contacts the stop rod 73 before rotation, so that the support plate 72 is limited by the stop rod 73 to rotate downward, so that the mold 9 is stably supported on the upper end surface of the support plate 72, and the mold 9 with ice cubes is in a pending state at this time. When the ice pushing assembly 12 pushes the ice cubes on the mold 9, the output end of the second cylinder 13 pushes the mold 9 upward. During the pushing process, since multiple molds 9 are stacked on each other and move upward at the same time, the mold 9 in the pending state position moves upward to the test position, so that the ice cubes can be quickly replaced after the upper ice cubes are broken, so as to simulate the scene of the skeleton body 2 colliding with the ice cubes for a long time, and at the same time, the mold 9 originally located at the test position moves upward to the upper support plate 72, so as to facilitate the staff to replace the mold 9.

[0055] Please refer to Figure 5The ice cube support frame 7 is fixed with a limiting protrusion 711 on one side close to the support frame 5, and the position of the limiting protrusion 711 corresponds to the position of the mold 9. The limiting protrusion 711 is located on both sides of the front end of the mold 9, and the position of the limiting protrusion 711 is in contact with the edge of the front end surface of the mold 9, so that the limiting protrusion 711 is used to limit the movement of the mold 9 during the pushing process of the ice pushing assembly 12.

[0056] The ice collecting table 8 includes a filter plate 81, a support platform 82 and a water filter hole 83. The filter plate 81 is fixed to the side of the ice support frame 7 away from the ice pushing assembly 12, and the end of the filter plate 81 is provided with a support platform 82, and the bottom of the support platform 82 is penetrated by a water filter hole 83. The side wall of the ice support frame 7 is fixed with a limiting plate 11. The end of the ice collecting table 8 away from the filter plate 81 is provided with an ice maker 10, and the water inlet hole of the ice maker 10 is connected to the water filter hole 83. When the skeleton body 2 moves to the position where the ice cubes collide, the filter plate 81 is located directly below the skeleton body 2. The skeleton body 2 collides with the ice cubes for a long time, and the ice cubes are broken to produce small ice cubes, crushed ice residue and water. The small ice cubes, crushed ice residue and water will fall onto the filter plate 81 due to gravity, and the ice residue and water will flow downward along the filter holes on the filter plate 81, while the small ice cubes slide along the filter plate 81 toward the support platform 82 and accumulate on the support platform 82. At this time, the small ice cubes collected on the support platform 82 are used to perform a strength test on the lower end surface of the hull skeleton 2, which is beneficial to saving the use of ice cubes. At the same time, there is no need to specially prepare ice cube tests after continuous ice breaking.

[0057] The ice pushing assembly 12 includes a third cylinder 121 and an ice pushing plate 122. The ice pushing plate 122 is slidably arranged between the mold 9 and the limiting plate 11, and the third cylinder 121 is fixed to the side of the ice pushing plate 122 away from the mold 9, and the third cylinder 121 is arranged to penetrate the limiting plate 11, and a telescopic rod 1201 is fixed to the lower end of the third cylinder 121;

[0058] The push rod 3 pushes the skeleton body 2 to move along the guide rail 41 toward the end away from the push rod 3, and at the same time, the third cylinder 121 pushes the ice-pushing plate 122 toward the skeleton body 2 until the ice-pushing plate 122 contacts the ice cube and pushes the ice cube in the mold 9 toward the skeleton body 2. During the ice-pushing process, the mold 9 outside the ice cube is blocked by the limiting protrusion 711, thereby facilitating the separation of the ice cube from the mold 9.

[0059] Please refer to Figures 5 to 8At the same time, the ice debris and water after the large ice cubes are crushed flow into the ice maker 10 through the filter plate 81 and the water filter hole 83 for recycling, and then the empty mold 9 is placed directly above the ice maker 10, and then the front and rear ends of the mold 9 are blocked, and water is injected into the mold 9. During the advancement of the third cylinder 121, the telescopic rod 1201 is driven to synchronously push the mold 9 into the ice cube support frame 7 until the front end of the mold 9 fits with the inner wall of the limiting protrusion 711, so that the ice cubes can be automatically replenished.

[0060] The following is a further description of a method for continuously testing the skeleton strength of an agricultural UAV provided by the present invention in conjunction with the accompanying drawings and implementation examples.

[0061] S1. When in use, the skeleton body 2 is slidably installed on the inner side of the guide rail 41 along the protrusions 201 on both sides, and then the hand wheel 453 is turned to drive the worm 452 to rotate, thereby driving the turbine 451 and the threaded rod 44 to rotate coaxially until the position of the ice layer corresponds to the position of the skeleton body 2 after being loaded with fry, at which time both ends of the guide rail 41 are fixed by the support seat 42;

[0062] S2, when simulating the continuous ice breaking method, the push rod 3 pushes the skeleton body 2 to move along the guide rail 41 toward the end away from the push rod 3, and at the same time, the third cylinder 121 pushes the ice pushing plate 122 forward until the ice cubes in the mold 9 corresponding to the ice pushing assembly 12 are pushed out;

[0063] S3. When a group of ice cubes are smashed, the second cylinder 13 extends upward and pushes the multiple molds 9 to move upward, so that the mold 9 with ice cubes is moved to a parallel state with the ice-pushing assembly 12, and the mold 9 in the original position moves upward, and the ice cubes collide with the skeleton body 2, thereby testing the strength of the front end surface of the skeleton body 2 at the current height of the continuous ice-breaking method. If the waterline of the hull moves upward after the test fry is released, the height of the skeleton body 2 is adjusted by the driving assembly 45 to simulate the relative position of the ice cubes and the skeleton body 2 after the waterline is shortened;

[0064] S4, at this time, the broken small ice cubes, ice debris and water fall on the filter plate 81, the ice debris and water flow downward along the filter holes on the filter plate 81, and the small ice cubes slide along the filter plate 81 toward the support platform 82 and accumulate on the support platform 82;

[0065] S5. Then test the impact-type ice-breaking method. First, separate the support seat 42 from the guide rail 41, and then start the first cylinder 61. The first cylinder 61 drives the push plate 62 to slide downward until it contacts the upper end surface of the bow of the skeleton body 2, so that the skeleton body 2 rotates clockwise along the threaded seat 43 as the center of the circle. At this time, the small ice cubes on the support platform 82 are located directly below the skeleton body 2. When the bow part of the skeleton body 2 moves downward, it can collide with the small ice cubes. The impact force between the skeleton body 2 and the ice cubes is changed by changing the propulsion speed of the first cylinder 61, and the strength of the skeleton body 2 is tested by observing the deformation degree on the skeleton body 2 and the force application speed of the first cylinder 61.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure may have various changes and improvements, and these changes and improvements fall within the scope of the present disclosure to be protected.

Claims

1. A continuous testing device for the frame strength of an agricultural drone, comprising: A support shell (1) and a skeleton body (2), wherein the skeleton body (2) is located at the inner upper end of the support shell (1), and a plurality of slide grooves (101) are fixed on the inner wall of the support shell (1), and the skeleton body (2) is slidably mounted on the inner side of the slide grooves (101), characterized in that a propulsion rod (3) is provided at one end of the skeleton body (2), and a support assembly (4) is fixed on the upper end surface of the support shell (1); The support assembly (4) comprises a guide rail (41), a support seat (42), a threaded seat (43) and a threaded rod (44); the guide rails (41) are slidably arranged on both sides of the skeleton body (2); a plurality of support seats (42) are inserted on the side of the guide rail (41) away from the skeleton body (2); a threaded seat (43) is hingedly connected to the middle part of the guide rail (41) on one side of the skeleton body (2); the inner side of the threaded seat (43) is threadedly connected to the threaded rod (44); and a driving assembly (45) is fixed to the upper end of the threaded rod (44); An ice cube support frame (7) is fixed to one end of the skeleton body (2) away from the pushing rod (3), and a mold (9) is slidably arranged inside the ice cube support frame (7), and an ice collecting platform (8) is arranged on the side of the ice cube support frame (7) close to the skeleton body (2), and a support frame (5) fixed to the upper end surface of the support shell (1) is arranged directly above the ice collecting platform (8), and an extrusion assembly (6) is arranged above the skeleton body (2), and the extrusion assembly (6) includes a first cylinder (61) and a push plate (62), and a first cylinder (61) penetrating the support frame (5) is arranged in the middle of the support frame (5), and a push plate (62) is fixed to the output end of the first cylinder (61), and an ice pushing assembly (12) is arranged on the side of the mold (9) away from the support frame (5).

2. The continuous testing device for the frame strength of an agricultural drone according to claim 1, characterized in that: Protrusions (201) adapted to the guide rail (41) are provided on both sides of the skeleton body (2), and the moving path of the skeleton body (2) is the same as the path of the guide rail (41).

3. The continuous testing device for the frame strength of an agricultural drone according to claim 2, characterized in that: A guide rod (401) is provided at one end of the skeleton body (2) away from the threaded rod (44), and an optical seat (402) is slidably provided on the outer wall of the guide rod (401); the position of the optical seat (402) corresponds to the position of the threaded seat (43), and the optical seat (402) is rotatably connected to the guide rail (41).

4. The continuous testing device for the frame strength of an agricultural drone according to claim 3, characterized in that: The driving assembly (45) comprises a turbine (451), a worm (452) and a handwheel (453); the turbine (451) is coaxially fixed to the upper end of the threaded rod (44), the worm (452) is meshed on the outer side of the turbine (451), and the handwheel (453) is fixed to the end of the worm (452) away from the skeleton body (2).

5. The continuous testing device for the frame strength of an agricultural UAV according to claim 1 is characterized in that: An ice collecting platform (8) is arranged directly below the ice cube support frame (7), and a second cylinder (13) is arranged inside the ice collecting platform (8); when the mold (9) is located on the ice cube support frame (7), the second cylinder (13) is located directly below the mold (9).

6. The continuous testing device for the frame strength of an agricultural UAV according to claim 5, characterized in that: A plurality of support rods (71) are symmetrically distributed on both sides of the ice cube support frame (7), and a plurality of support plates (72) are rotatably arranged on the outer sides of the support rods (71), and a blocking rod (73) is arranged on the upper side of one end of the support plate (72) away from the mold (9).

7. The continuous testing device for the frame strength of an agricultural UAV according to claim 6, characterized in that: A limiting protrusion (711) is fixed on one side of the ice cube supporting frame (7) close to the supporting frame (5), and the position of the limiting protrusion (711) corresponds to the position of the mold (9).

8. The continuous testing device for the frame strength of an agricultural UAV according to claim 7, characterized in that: The ice collecting platform (8) comprises a filter plate (81), a support platform (82) and a water filter hole (83); the filter plate (81) is fixed to a side of the ice support frame (7) away from the ice pushing assembly (12); the support platform (82) is arranged at the end of the filter plate (81); and the water filter hole (83) is penetrated through the bottom of the support platform (82); a limiting plate (11) is fixed to the side wall of the ice support frame (7); an ice maker (10) is arranged at one end of the ice collecting platform (8) away from the filter plate (81); and the water inlet of the ice maker (10) is connected to the water filter hole (83).

9. The continuous testing device for the frame strength of an agricultural UAV according to claim 8, characterized in that: The ice pushing assembly (12) comprises a third cylinder (121) and an ice pushing plate (122); the ice pushing plate (122) is slidably arranged between the mold (9) and the limiting plate (11); the third cylinder (121) is fixed to a side of the ice pushing plate (122) away from the mold (9); the third cylinder (121) is arranged to penetrate the ice pushing plate (122); and a telescopic rod (1201) is fixed to the lower end of the third cylinder (121).

10. A method for continuously testing the frame strength of an agricultural drone, using the device for continuously testing the frame strength of an agricultural drone as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When in use, the skeleton body (2) is slidably installed on the inner side of the guide rail (41) along the protrusions (201) on both sides, and then the hand wheel (453) is turned to drive the worm (452) to rotate, thereby driving the turbine (451) and the threaded rod (44) to rotate coaxially until the position of the ice layer corresponds to the position of the skeleton body (2) after being loaded with fry, and at this time, both ends of the guide rail (41) are fixed by the support seat (42); S2. When simulating a continuous ice-breaking method, the propulsion rod (3) pushes the skeleton body (2) along the guide rail (41) toward the end away from the propulsion rod (3), and at the same time, the third cylinder (121) pushes the ice-pushing plate (122) forward until the ice cubes in the mold (9) corresponding to the ice-pushing assembly (12) are pushed out; S3. When a group of ice cubes are smashed, the second cylinder (13) extends upward and pushes the plurality of molds (9) to move upward, so that the molds (9) containing ice cubes move to a state parallel to the ice-pushing assembly (12), and the molds (9) in the original position move upward, and the ice cubes collide with the skeleton body (2), thereby testing the strength of the front end surface of the skeleton body (2) at the current height of the continuous ice-breaking method. If the waterline of the hull moves upward after the test fry is released, the height of the skeleton body (2) is adjusted by the driving assembly (45), thereby simulating the relative position of the ice cubes and the skeleton body (2) after the waterline is shortened; S4, at this time, the broken small ice cubes, ice debris and water fall on the filter plate (81), the ice debris and water flow downward along the filter holes on the filter plate (81), and the small ice cubes slide along the filter plate (81) toward the support platform (82) and accumulate on the support platform (82); S5. Then, the impact-type ice-breaking method is tested. First, the support seat (42) is separated from the guide rail (41), and then the first cylinder (61) is started. The first cylinder (61) drives the push plate (62) to slide downward until it contacts the upper end surface of the bow of the skeleton body (2), so that the skeleton body (2) rotates clockwise along the threaded seat (43) as the center of the circle. At this time, the small ice cube on the support platform (82) is located directly below the skeleton body (2). When the bow part of the skeleton body (2) moves downward, it can collide with the small ice cube. The impact force between the skeleton body (2) and the ice cube is changed by changing the propulsion speed of the first cylinder (61), and the strength of the skeleton body (2) is tested by observing the deformation degree on the skeleton body (2) and the force application speed of the first cylinder (61).

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