Root rotating shaft type flapping hinge integrated propeller and forming equipment thereof

Abstract

The invention relates to the technical field of propeller production, in particular to a root rotating shaft type flapping hinge integrated propeller and forming equipment thereof. The technical problems that in the prior art, the root of a propeller is prone to damage when bearing large acting force, and the integrally-formed propeller with the large torsion angle cannot be produced through forming equipment are solved. Comprising a mounting base and further comprises a control mechanism, the control mechanism comprises a flapping hinge, one side of the mounting base is fixedly connected with the flapping hinge in a penetrating mode, and the outer wall of the flapping hinge is rotationally sleeved with a propeller. According to the unmanned aerial vehicle, through the design of the propellers and the flapping hinges, the propellers can flapping up and down through the flapping hinges when the propellers are subjected to unbalanced loads, and when the unmanned aerial vehicle flies in strong wind weather, the propellers can rotate around the joints of the flapping hinges, so that the resistance borne by the unmanned aerial vehicle during flight is effectively reduced; and the stability of the power system of the unmanned aerial vehicle is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of propeller production, and in particular to a root rotating shaft type flapping hinge integrated propeller and a molding device thereof. Background Art

[0002] In the field of multi-rotor aircraft and drones, when existing propellers are working, especially in the forward flight state, when encountering strong winds, the drone will be subject to great resistance and the root of the propeller will be subjected to a large force, which will not only cause the root of the propeller to be easily damaged, but also cause the power system to produce large vibrations. The existence of vibrations not only reduces the flight stability of the aircraft, but also has an adverse effect on the precision equipment carried on the aircraft, and also shortens the service life of the power system. In addition, large vibrations will also increase the energy consumption of the aircraft and reduce flight efficiency.

[0003] The propellers in the prior art are usually produced in two types. The first type of propeller is produced in two or three parts independently and then assembled together through connectors. The structural parts are complex and the assembly steps are cumbersome. The second type of propeller is integrally formed by injection molding or hot pressing equipment, but the torsion angle of the propeller is greatly limited. If the torsion angle of the propeller is too large, it will make it impossible to demold. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that the root of the propeller is easily damaged when subjected to a large force and the molding equipment is unable to produce an integrally molded propeller with a large torsion angle, the present invention provides a root rotating shaft type flapping hinge integrated propeller and a molding equipment thereof.

[0005] The technical solution of the present invention is as follows: it includes a mounting seat and a control mechanism, the control mechanism includes a swinging hinge, the swinging hinge is fixedly connected to one side of the mounting seat in a through-type manner, a propeller is rotatably sleeved on the outer wall of the swinging hinge, the propeller is integrally formed by composite materials, the root shaft hole of the propeller is molded, the swinging hinge is made of a high-strength aluminum alloy shaft, and the swinging hinge can make the propeller swing up and down under the action of an unbalanced load to reduce the root load of the propeller.

[0006] Optionally, the control mechanism also includes a connecting frame, a ring groove is provided on the top of the mounting seat, the connecting frame is slidably connected in the ring groove, a wind direction plate is symmetrically fixed to the top of the connecting frame, a detection plate is hinged between the two wind direction plates, a torsion spring is arranged between the detection plate and one of the wind direction plates, a connecting block is slidably connected in the connecting frame, a connecting rod A is hinged on one side of the detection plate, one end of the connecting rod A is hinged to the connecting block, a connecting rod B is hinged on the bottom of the connecting block, one end of the connecting rod B is hinged to a support ring, and the support ring is hinged to the connecting frame.

[0007] Optionally, it also includes a rolling mechanism, which includes a base, a rectangular electric rail is fixedly installed on the base, a circular electric rail is slidably connected to the rectangular electric rail, a sliding block is symmetrically slidably connected to the circular electric rail, a bracket is commonly fixed between the two sliding blocks, a two-way hydraulic cylinder is fixedly installed on the bottom of the inner wall of the bracket, a telescopic plate is fixedly connected to the telescopic end of the two-way hydraulic cylinder, an electric guide rail is symmetrically fixedly installed on the inner wall of the bracket, an extension shaft is slidably connected to the electric guide rail, the telescopic end of the extension shaft is fixedly connected to the telescopic end of the telescopic plate, a telescopic shaft is fixedly connected to one side of the telescopic end of the telescopic plate, a connecting plate is fixedly connected to the telescopic end of the telescopic shaft, a C-shaped frame is slidably connected to one side of the connecting plate, and an electric heating roller is slidably connected to the inner wall of the C-shaped frame.

[0008] Optionally, the rolling mechanism also includes a pressure sensor, which is fixedly installed on one side of the connecting plate, and the pressure sensor is fitted with the C-shaped frame. A hydraulic rod is fixedly installed on the outer wall of the fixed end of the telescopic shaft through a support rod, and the hydraulic rod is electrically connected to the pressure sensor, and the telescopic end of the hydraulic rod is fixedly connected to the connecting plate.

[0009] Optionally, a marking mechanism is also included, which includes a mounting box, the mounting box is fixedly connected to the top of the inner wall of the bracket, fan blades are installed in the mounting box, and air pipes are symmetrically connected on both sides of the mounting box, both ends of one of the air pipes are connected to a telescopic tube A, two groups of air holes are penetrated through the outer wall of the fixed end of the telescopic shaft, the telescopic end of the telescopic tube A is connected to the fixed end of the telescopic shaft, and the outer wall of the fixed end of the telescopic shaft is connected to an L-shaped tube A.

[0010] Optionally, the marking mechanism also includes a telescopic tube B, and both ends of the other air supply pipe are connected to the telescopic tube B, the telescopic end of the telescopic tube B is connected to the fixed end of the telescopic shaft, the outer wall of the fixed end of the telescopic shaft is connected to an L-shaped tube B, and the telescopic end of the telescopic shaft is provided with a vent hole.

[0011] Optionally, the marking mechanism also includes a paint tube, and the tops of the L-shaped tube A and the L-shaped tube B are connected to a plurality of evenly distributed paint tubes, the tops of the inner walls of the L-shaped tube A and the L-shaped tube B are slidably connected to a plurality of groups of evenly distributed elastic slides, the bottoms of the plurality of groups of elastic slides are fixedly connected to inclined plates, one end of the L-shaped tube A and the L-shaped tube B are connected to a telescopic spray tube, and one end of the telescopic spray tube is through-type and fixedly connected to the C-shaped frame.

[0012] Optionally, a cleaning mechanism is also included, which includes a lifting plate. The lifting plate is arranged on the lower side of the bidirectional hydraulic cylinder, a driving assembly is connected to the bracket, the lifting plate is connected to the driving assembly, and the top of the lifting plate is symmetrically rotatably connected to a flexible roller and fixed with a peeling knife.

[0013] Optionally, the cleaning mechanism also includes a sliding rod, a sliding groove is provided on the top of the lifting plate, the sliding rod is symmetrically slidably connected in the sliding groove, a compression spring is arranged between the two sliding rods, a pulley is rotatably connected to one side of the sliding rod, and a grinding strip is wound around the two pulleys.

[0014] Optionally, it also includes an elastic telescopic rod, the top of the lifting plate is fixedly connected to the elastic telescopic rod, the telescopic end of the elastic telescopic rod is rotatably connected to a fitting wheel, and one end of the rotating shaft of one of the pulleys is fixedly connected to a transmission wheel used in conjunction with the fitting wheel.

[0015] Beneficial effects of the present invention: 1. The present invention designs the propeller and the flapping hinge. When the propeller is subjected to an unbalanced load, the propeller can swing up and down through the flapping hinge similar to the principle of seesaw motion. When the UAV flies in windy weather, the propeller can rotate at the connection of the flapping hinge, which effectively reduces the resistance encountered by the UAV during flight, greatly improves the stability of the UAV power system, prevents damage to the root of the propeller, and effectively extends the service life of the propeller.

[0016] 2. The present invention, through the design of the rolling mechanism, can roll the outer wall of the propeller through the electric heating rolling wheel to achieve one-piece molding of the propeller, without dividing the propeller into multiple parts for separate production, thereby reducing production costs.

[0017] 3. The present invention can timely mark the defects or protrusions of the propeller through the design of the marking mechanism, without the need for subsequent staff to spend a lot of time looking for the position of the propeller that needs to be adjusted. Through the design of the inclined plate, the color depth of the sprayed paint can be changed according to the size of the airflow, thereby making it easier for staff to judge the adjustment degree of the propeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the propeller of the present invention; Figure 2 It is a structural schematic diagram of the control mechanism of the present invention; Figure 3 It is a structural schematic diagram of the molding equipment of the present invention; Figure 4 It is a structural schematic diagram of the rolling mechanism of the present invention; Figure 5This is a schematic diagram of the installation of the electric heating roller pressure wheel of the present invention; Figure 6 It is a structural schematic diagram of the marking mechanism of the present invention; Figure 7 It is the installation schematic diagram of the pigment tube of the present invention; Figure 8 It is a schematic diagram of the installation of the inclined plate of the present invention; Fig. 9 It is a structural schematic diagram of the cleaning mechanism of the present invention; Fig.10 It is a schematic diagram of the installation of the laminating wheel of the present invention.

[0019] Parts names and serial numbers in the figure: 1-mounting seat, 201-flapping hinge, 202-propeller, 203-connecting frame, 2031-wind deflector, 204-detection plate, 2041-connecting block, 205-connecting rod A, 206-connecting rod B, 207-support ring, 301-base, 302-rectangular electric track, 303-annular electric track, 304-sliding block, 305-bracket, 306-bidirectional hydraulic cylinder, 307-telescopic plate, 3071-electric guide rail, 3072-extension shaft, 308-telescopic shaft, 309-connection plate, 310-C shaped frame, 311-electric heating roller, 401-pressure sensor, 402-hydraulic rod, 501-installation box, 502-fan blade, 5021-air pipe, 503-telescopic tube A, 504-L-shaped tube A, 601-telescopic tube B, 602-L-shaped tube B, 701-paint tube, 702-elastic slide plate, 703-inclined plate, 801-telescopic spray tube, 901-lifting plate, 902-flexible roller, 903-peeling knife, 1001-sliding rod, 1002-pulley, 1101-elastic telescopic rod, 1102-laminating wheel, 100-clamp. DETAILED DESCRIPTION

[0020] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0021] A root shaft type flapping hinge integrated propeller, such as Figure 1 and Figure 2As shown, it includes a mounting base 1, which is connected to the motor in the UAV power system, and also includes a control mechanism, which includes a swinging hinge 201. The swinging hinge 201 is fixedly connected to one side of the mounting base 1, and a propeller 202 is rotatably sleeved on the outer wall of the swinging hinge 201. The propeller 202 is integrally formed of composite materials, and the swinging hinge 201 is made of a high-strength aluminum alloy shaft. The swinging hinge 201 can make the propeller 202 swing up and down similar to the seesaw motion principle under the action of an unbalanced load. By tilting the propeller 202 with the connection point of the swinging hinge 201 as the center of the circle, the resistance encountered by the UAV during flight can be effectively reduced.

[0022] like Figure 2 As shown, the control mechanism also includes a connecting frame 203, an annular groove is provided on the top of the mounting seat 1, and the connecting frame 203 is slidably connected in the annular groove, and wind direction plates 2031 are symmetrically fixed on the top of the connecting frame 203, and a detection plate 204 is hinged between the two wind direction plates 2031, and a torsion spring is provided between the detection plate 204 and one of the wind direction plates 2031, and a connecting block 2041 is slidably connected in the connecting frame 203, and a connecting rod A205 is hinged on one side of the detection plate 204, and one end of the connecting rod A205 is connected to the connecting block 20 41 is hinged. When the UAV encounters strong wind during flight, the strong wind can impact the detection plate 204, causing the detection plate 204 to rotate with the connection point of the wind deflector 2031 as the center. A connecting rod B206 is hinged at the bottom of the connecting block 2041, and a supporting ring 207 is hinged at one end of the connecting rod B206. The supporting ring 207 is hinged to the connecting frame 203. When the detection plate 204 rotates, the connecting block 2041 can be driven to move through the connecting rod A205, so that the supporting ring 207 rotates tiltedly with the connection point of the connecting frame 203 as the center.

[0023] Initially, the detection plate 204 is in a vertical state, the drone is started, the motor in the drone driving system drives the mounting seat 1 to rotate at high speed, the mounting seat 1 drives the propeller 202 to rotate at high speed through the swing hinge 201, the propeller 202 rotates at high speed to generate a downward thrust, the drone takes off upward under the reaction force, and when the drone is flying, the drone will tilt in the direction of flight, the thrust direction generated by the propeller 202 forms an acute angle with the direction of air resistance encountered by the drone during flight, and the angle of the acute angle changes according to the flight speed of the drone, and the flight speed of the drone changes accordingly. The greater the angle, the smaller the acute angle formed by the thrust direction generated by the propeller 202 and the direction of the air resistance encountered by the drone during flight. When the drone encounters a strong wind opposite to its own flight direction, the two wind deflectors 2031 are impacted by the strong wind and drive the connecting frame 203 to slide along the annular groove of the mounting seat 1, and drive the detection plate 204 to move. The connecting frame 203 drives the connecting rod A205 and the connecting rod B206 to move through the connecting block 2041, and drives the supporting ring 207 to move until the side of the detection plate 204 close to the connecting rod A205 is opposite to the wind direction of the strong wind. Yes, at this time, the impact force of the strong wind on the detection plate 204 increases, causing the detection plate 204 to rotate with the connection between the two wind deflector plates 2031 as the center of the circle, and the torsion spring contracts under the force. The detection plate 204 applies a pulling force to the connecting block 2041 through the connecting rod A205, and the connecting block 2041 slides under the force and applies a thrust to the support ring 207 through the connecting rod B206. The support ring 207 is forced to rotate with the connection of the connecting frame 203 as the center of the circle, and the bottom end of the support ring 207 squeezes the middle top surface of the propeller 202, so that the propeller 202 swings at the swing hinge 201. The connection is a circle-centered rotation. It is worth noting that the rotation angle of the detection plate 204 is affected by the size of the strong wind. The greater the strong wind, the greater the rotation angle of the detection plate 204, and thus the greater the rotation angle of the propeller 202. This can adaptively reduce the acute angle between the thrust generated by the propeller 202 and the strong wind direction. By adaptively reducing the acute angle between the thrust generated by the propeller 202 and the strong wind direction, the resistance encountered by the drone during flight can be effectively reduced, and the force on the root of the propeller 202 can be reduced, thereby preventing damage to the propeller 202.

[0024] When the strong wind disappears, the detection plate 204 is no longer impacted by the strong wind, and the contraction of the torsion spring drives the detection plate 204 to rotate and reset. The detection plate 204 pushes the connecting block 2041 to slide and reset through the connecting rod A205. The connecting block 2041 pulls the supporting ring 207 through the connecting rod B206 to rotate and reset with the connection point of the connecting frame 203 as the center. After the support ring 207 is reset, it no longer squeezes the top of the propeller 202, and the propeller 202 is no longer affected and rotates in a normal posture. Example 2

[0025] like Figure 3-Figure 5As shown, a rolling mechanism is also included, the rolling mechanism includes a base 301, a rectangular electric track 302 is fixedly installed on the base 301, a circular electric track 303 is horizontally slidably connected in the rectangular electric track 302, a sliding block 304 is symmetrically slidably connected in the circular electric track 303, a bracket 305 is fixedly connected between the two sliding blocks 304, a bidirectional hydraulic cylinder 306 is fixedly installed at the bottom of the inner wall of the bracket 305, a telescopic plate 307 is fixedly connected to the telescopic end of the bidirectional hydraulic cylinder 306, and the inner wall of the bracket 305 is opposite to the inner wall of the bracket 305. An electric guide rail 3071 is fixedly installed, an extension shaft 3072 is slidably connected inside the electric guide rail 3071, the telescopic end of the extension shaft 3072 is fixedly connected to the telescopic end of the adjacent telescopic plate 307, the telescopic end of the telescopic plate 307 is fixedly connected to the telescopic shaft 308 on the side away from the extension shaft 3072, the telescopic end of the telescopic shaft 308 is fixedly connected to a connecting plate 309, the connecting plate 309 is horizontally slidably connected to a C-shaped frame 310 on the side away from the telescopic shaft 308, and the inner wall of the C-shaped frame 310 is slidably connected to an electric heating roller pressing wheel 311.

[0026] like Figure 5 As shown, the rolling mechanism also includes a pressure sensor 401. The pressure sensor 401 is fixedly installed on the side of the connecting plate 309 away from the telescopic shaft 308. The pressure sensor 401 is fitted with the C-shaped frame 310. When the electric heating roller 311 rolls the outer wall of the propeller 202, the propeller 202 applies a reaction force to the electric heating roller 311, so that the electric heating roller 311 applies an extrusion force to the pressure sensor 401 through the C-shaped frame 310. A hydraulic rod 402 is fixedly installed on the outer wall of the fixed end of the telescopic shaft 308 through a support rod. The hydraulic rod 402 is electrically connected to the pressure sensor 401, and the telescopic end of the hydraulic rod 402 is fixedly connected to the connecting plate 309.

[0027] like Figure 6 and Figure 7 As shown, a marking mechanism is also included, which includes a mounting box 501. The mounting box 501 is fixedly connected to the top of the inner wall of the bracket 305. The fan blade 502 is installed on the top of the inner wall of the mounting box 501. The two sides of the mounting box 501 are symmetrically connected with air pipes 5021. Both ends of the air pipe 5021 located on the front side of the mounting box 501 are connected with telescopic tubes A503. Two groups of air holes are penetrated through the outer wall of the fixed end of the telescopic shaft 308, and each group has two air holes. The two air holes close to the C-shaped frame 310 are the first group of air holes, and the two air holes away from the C-shaped frame 310 are the second group of air holes. The telescopic end of the telescopic tube A503 is connected to the fixed end of the telescopic shaft 308. The outer wall of the fixed end of the telescopic shaft 308 is connected with an L-shaped tube A504. The telescopic end of the telescopic tube A503 and the L-shaped tube A504 are respectively arranged corresponding to and connected with the first group of air holes.

[0028] like Figure 6 and Figure 7As shown, the marking mechanism also includes a telescopic tube B601. Both ends of the air pipe 5021 located at the rear side of the installation box 501 are connected to the telescopic tube B601. The outer wall of the fixed end of the telescopic shaft 308 is connected to an L-shaped tube B602. The telescopic end of the telescopic tube B601 and the L-shaped tube B602 are respectively arranged corresponding to and connected to the second group of air holes, and a ventilation hole is opened through the telescopic end of the telescopic shaft 308.

[0029] like Figure 7 and Figure 8 As shown, the marking mechanism also includes a pigment tube 701. The tops of the L-shaped tube A504 and the L-shaped tube B602 are connected to three uniformly distributed pigment tubes 701. The three pigment tubes 701 on the L-shaped tube A504 and the three pigment tubes 701 on the L-shaped tube B602 are filled with pigments. The colors of the pigments filled in the three pigment tubes 701 on the L-shaped tube A504 and the three pigment tubes 701 on the L-shaped tube B602 are different. The color depth of the pigments in the adjacent three pigment tubes 701 is relative to C. The L-shaped frame 310 gradually changes from shallow to deep from far to near. The top of the inner wall of the L-shaped tube A504 and the L-shaped tube B602 are horizontally slidably connected with three groups of evenly distributed elastic slides 702, each group has two, and the three groups of elastic slides 702 are arranged in a one-to-one correspondence with the three paint tubes 701. The bottom of the three groups of elastic slides 702 are fixedly connected with an inclined plate 703. One end of the L-shaped tube A504 and the L-shaped tube B602 are connected to a telescopic spray tube 801, and one end of the telescopic spray tube 801 is through-type and fixedly connected to the C-shaped frame 310.

[0030] like Fig. 9 and Fig.10 As shown, a cleaning mechanism is also included, which includes a lifting plate 901. The lifting plate 901 is arranged on the lower side of the two-way hydraulic cylinder 306. A driving assembly is connected to the bracket 305. The driving assembly consists of a lead screw and a guide shaft, wherein the lead screw is rotatably connected to the bracket 305 in a through-type manner and is threadedly connected to the lifting plate 901 in a through-type manner. The guide shaft is fixed to the bottom of the inner wall of the bracket 305 and is slidably connected to the lifting plate 901 in a through-type manner. The top of the lifting plate 901 is symmetrically rotatably connected with a flexible roller 902 and is fixed with a stripping knife 903.

[0031] like Fig. 9 and Fig.10 As shown, the cleaning mechanism also includes a sliding rod 1001, a sliding groove is opened on the top of the lifting plate 901, the sliding rods 1001 are symmetrically slidably connected in the sliding groove, a compression spring is arranged between the two sliding rods 1001, and a pulley 1002 is rotatably connected to one side of the sliding rod 1001, and a grinding strip is wound around the two pulleys 1002, and the grinding strip is used to grind the edge of the propeller 202.

[0032] like Fig.10As shown, it also includes an elastic telescopic rod 1101, the top of the lifting plate 901 is fixedly connected with the elastic telescopic rod 1101, the telescopic end of the elastic telescopic rod 1101 is rotatably connected with a fitting wheel 1102, and the fitting wheel 1102 contacts the edge of the propeller 202 after movement, and one end of the rotating shaft of one of the pulleys 1002 is fixedly connected with a transmission wheel used in conjunction with the fitting wheel 1102.

[0033] Initially, the vent hole at the telescopic end of the telescopic shaft 308 is misaligned with the four air delivery holes at the fixed end of the telescopic shaft 308. When the propeller 202 is produced, the staff first preliminarily bonds the components of the propeller 202 with resin, then passes the propeller 202 through the annular electric track 303, and clamps the two ends of the propeller 202 with two clamps 100 respectively, starts the bidirectional hydraulic cylinder 306 and the fan blade 502, and the fan blade 502 rotates at a high speed to generate airflow in the installation box 501, and the airflow enters the two telescopic tubes A503 and the telescopic tube B601 respectively through the two air delivery pipes 5021. Since the vent hole at the telescopic end of the telescopic shaft 308 is misaligned with the four air delivery holes at the fixed end of the telescopic shaft 308, the two telescopic tubes A503 and the telescopic tube B601 are 01 cannot enter the vent hole at the telescopic end of the telescopic shaft 308. At the same time, the telescopic end of the two-way hydraulic cylinder 306 contracts, causing the two telescopic plates 307 to move closer to each other. The telescopic plate 307 drives the telescopic end of the corresponding extension shaft 3072 to extend, and drives the corresponding telescopic shaft 308 to move. The telescopic shaft 308 drives the hydraulic rod 402 to move through the support rod. The telescopic end of the hydraulic rod 402 drives the electric heating roller pressure wheel 311 to move through the connecting plate 309 and the C-shaped frame 310. At this time, the two electric heating roller pressure wheels 311 move closer to each other, and then the two electric heating roller pressure wheels 311 are respectively attached to and squeezed with the outer wall of the propeller 202. The electric heating roller pressure wheel 311 applies a reaction force to the C-shaped frame 310, causing the C-shaped frame 310 to perform pressure sensor 401 on the adjacent pressure sensor 401. The telescopic end of the hydraulic rod 402 is in a semi-extended state, and pressure is applied to the pressure sensor 401 through the C-shaped frame 310. The pressure sensor 401 can judge whether there are defects or protrusions on the outer wall of the propeller 202 according to the pressure received, and then control the circular electric track 303 to reciprocate horizontally along the rectangular electric track 302, and control the two sliding blocks 304 to slide synchronously along the circular electric track 303 according to the torsion angle of the outer wall of the propeller 202, and control the telescopic length of the telescopic end of the bidirectional hydraulic cylinder 306 according to the outer wall thickness of the propeller 202, thereby enabling the two electric heating rollers 311 to always move in contact with the outer wall of the propeller 202, and roll the outer wall of the propeller 202, and After the rectangular electric track 303 reciprocates horizontally once along the rectangular electric track 302, the extension shaft 3072 therein is controlled to slide vertically by the electric guide rail 3071. When the extension shaft 3072 slides upward, the extension shaft 3072 drives the telescopic end of the corresponding telescopic plate 307 to contract, and the telescopic plate 307 drives the adjacent telescopic shaft 308 to lift upward. The fixed end of the telescopic shaft 308 drives the hydraulic rod 402 to lift upward through the support rod, and drives the L-shaped tube A504 and the L-shaped tube B602 thereon to lift upward, and the corresponding telescopic tube A503 and the telescopic end of the telescopic tube B601 to contract. The telescopic end of the telescopic shaft 308 drives the C-shaped frame 310 and the electric heating roller pressing wheel 311 to lift upward through the connecting plate 309. When the extension shaft 3072 slides downward,Then, the electric heating roller 311 can be lowered downward, so that the electric heating roller 311 can contact other positions of the outer wall of the propeller 202, so as to fully roll the outer wall of the propeller 202. By rolling the outer wall of the propeller 202, the propeller 202 can be integrally formed, and the outer skin and internal materials of the propeller 202 can be more compact. By integrally forming the propeller 202, the structural strength of the propeller 202 can be effectively improved, and the stability of the UAV during flight can be improved.

[0034] After the propeller 202 in the prior art is produced, it is necessary to perform a dynamic balance test to ensure the stability and safety of the propeller 202 when rotating at high speed. When the dynamic balance test of the propeller 202 fails, the staff needs to add weight to the propeller 202 or peel off part of the material for adjustment. The staff cannot accurately judge the position that causes the propeller 202 to be unbalanced, resulting in the need for the staff to constantly change the position where the weight is added to the propeller 202, or to constantly peel off the material at different positions of the propeller 202, and to make continuous attempts, in order to make the dynamic balance test of the propeller 202 meet the standard, which is time-consuming, labor-intensive, and inefficient. The present invention can effectively solve the above problems, specifically: There are two specific situations. The first situation is that the material at a certain position of the propeller 202 is insufficient, resulting in a defect in the propeller 202. When one of the electric heating rollers 311 moves to the defect of the propeller 202, the reaction force of the propeller 202 on the electric heating roller 311 is reduced, thereby reducing the squeezing force of the C-shaped frame 310 on the pressure sensor 401. After the pressure sensor 401 senses the reduction in squeezing force, it quickly controls the extension of the telescopic end of the adjacent hydraulic rod 402. The telescopic end of the hydraulic rod 402 drives the telescopic end of the telescopic shaft 308 and the pressure sensor 401 to move through the connecting plate 309. The telescopic end of the telescopic shaft 308 is extended by force until the reaction force of the propeller 202 on the electric heating roller 311 returns to normal, thereby reducing the pressure sensor 401. The telescopic end of the rod 402 no longer extends. During this process, the air vents at the telescopic end of the telescopic shaft 308 are connected to the first group of air delivery holes at the fixed end of the telescopic shaft 308 to form a fluid channel. It is worth noting that the greater the defect on the outer wall of the propeller 202, the longer the extension length of the telescopic end of the hydraulic rod 402 controlled by the pressure sensor 401, and thus the larger the area of ​​the fluid channel formed. The airflow in the telescopic tube A503 enters the adjacent L-shaped tube A504 through the air vents at the telescopic end of the telescopic shaft 308, and the airflow flows along the inner wall of the L-shaped tube A504. When the airflow flows to a group of elastic slide plates 702 in the L-shaped tube A504 away from the telescopic spray tube 801, the inclined plate 703 at the bottom of the first group of elastic slide plates 702 is impacted by the airflow, and the inclined plate 703 is The corresponding elastic slide plates 702 apply thrust to make the two elastic slide plates 702 slide away from each other. After the elastic slide plates 702 slide away from each other, the internal pigment of the corresponding pigment tube 701 flows downward under the influence of its own weight and airflow. Then the airflow impacts the inclined plates 703 at the bottom of the subsequent two groups of elastic slide plates 702 respectively, making the subsequent two groups of elastic slide plates 702 move away from each other, thereby causing the internal pigment of the corresponding pigment tube 701 on them to flow downward. It is worth noting that as the airflow flows, the airflow is blocked by the inclined plates 703 and the friction between the inner wall of the L-shaped tube A504 during the flow process, which will cause the airflow energy loss, the airflow speed gradually decreases, and the impact force of the airflow on the inclined plates 703 at the bottom of the three groups of elastic slide plates 702 decreases successively. , thereby making the moving distances of the three groups of elastic slides 702 decrease in sequence, and making the amount of pigment flowing out of the three pigment tubes 701 decrease in sequence. When the area of ​​the air vent at the telescopic end of the telescopic shaft 308 and the first group of air delivery holes at the fixed end of the telescopic shaft 308 is larger, the airflow is larger, and the impact force of the airflow on the inclined plates 703 at the bottom of the subsequent two groups of elastic slides 702 is larger. When the area of ​​the air vent at the telescopic end of the telescopic shaft 308 and the first group of air delivery holes at the fixed end of the telescopic shaft 308 is smaller, the airflow is smaller, and the impact force of the airflow on the inclined plates 703 at the bottom of the subsequent two groups of elastic slides 702 is smaller. The force exerted by the inclined plates 703 at the bottom of the subsequent two groups of elastic slides 702 under the impact on the two groups of elastic slides 702 is not enough to make the corresponding elastic slides 702 completely shrink and slide.Or it cannot drive the corresponding elastic slide plate 702 to move, thereby enabling the determination of the degree of defect of the propeller 202. After the paint falls into the L-shaped tube A504, the airflow drives the paint to be sprayed on the outer wall of the propeller 202 through the telescopic spray tube 801, thereby enabling the defect of the propeller 202 to be marked, so that the staff can quickly find the defect of the propeller 202 and deal with it. Moreover, the more paint flows out of the subsequent two paint tubes 701, the darker the color of the paint sprayed on the defect of the propeller 202. The staff can determine the degree of defect of the propeller 202 according to the color depth of the paint, so that the staff can be more accurate when adding weight to the defect of the propeller 202.

[0035] As the electric heating roller pressing wheel 311 continues to move, when there is no defect on the outer wall of the propeller 202, the electric heating roller pressing wheel 311 applies an extrusion force to the adjacent pressure sensor 401 through the C-shaped frame 310. After the pressure sensor 401 is subjected to the force, it controls the telescopic end of the adjacent hydraulic rod 402 to shrink and reset. The telescopic end of the hydraulic rod 402 drives the telescopic end of the telescopic shaft 308 and the pressure sensor 401 to reset through the connecting plate 309. After the telescopic end of the telescopic shaft 308 is reset, the air vent at the telescopic end of the telescopic shaft 308 is misaligned with the air delivery hole at the fixed end of the telescopic shaft 308, so that the telescopic spray tube 801 no longer sprays paint.

[0036] The second situation is that there is too much material at a certain position of the propeller 202, resulting in a bulge on the propeller 202. When one of the electric heating roller pressing wheels 311 moves to the bulge of the propeller 202, the reaction force of the propeller 202 on the electric heating roller pressing wheel 311 increases, thereby increasing the squeezing force of the C-shaped frame 310 on the pressure sensor 401. After the pressure sensor 401 senses the increase in squeezing force, it quickly controls the telescopic end of the adjacent hydraulic rod 402 to contract. The telescopic end of the hydraulic rod 402 drives the telescopic end of the telescopic shaft 308 to contact the pressure sensor 401 through the connecting plate 309. The sensor 401 moves, and the telescopic end of the telescopic shaft 308 contracts. The air vents at the telescopic end of the telescopic shaft 308 are connected with the second set of air delivery holes at the fixed end of the telescopic shaft 308 to form a fluid channel. The above steps are repeated to allow the airflow to enter the adjacent L-shaped tube B602, and the airflow flows along the inner wall of the L-shaped tube B602. The above steps are repeated to drive the paint to be sprayed on the outer wall of the propeller 202 through the telescopic spray tube 801, thereby marking the protrusions of the propeller 202, so that the staff can quickly find the protrusions of the propeller 202 and handle them.

[0037] As the electric heating roller 311 continues to move, when there is no protrusion on the outer wall of the propeller 202, the reaction force of the propeller 202 on the electric heating roller 311 is reduced, thereby reducing the squeezing force of the C-shaped frame 310 on the pressure sensor 401. After the pressure sensor 401 senses the reduction in squeezing force, it quickly controls the adjacent telescopic end of the hydraulic rod 402 to extend and reset. The telescopic end of the hydraulic rod 402 drives the telescopic end of the telescopic shaft 308 and the pressure sensor 401 to reset through the connecting plate 309. After the telescopic end of the telescopic shaft 308 is reset, the air vent at the telescopic end of the telescopic shaft 308 is misaligned with the air delivery hole at the fixed end of the telescopic shaft 308, thereby causing the telescopic spray tube 801 to no longer spray paint.

[0038] Since the material of the propeller 202 needs to be bonded by resin, during the process of the electric heating roller 311 rolling the outer wall of the propeller 202, the heat generated by the electric heating roller 311 can melt the resin, and the molten resin flows to the edge of the propeller 202 under the extrusion of the electric heating roller 311, and finally overflows from the edge of the propeller 202 and solidifies. After the propeller 202 is rolled, the overflowed resin needs to be cleaned. First, the rectangular electric track 302 controls the movement of the annular electric track 303 to make the bracket 305 located on the upper middle side of the propeller 202, and then the staff rotates the lead screw in the drive assembly to lift the lifting plate 901 upward along the outer wall of the guide shaft in the drive assembly, and the lifting plate 901 The two flexible rollers 902, the stripping knife 903, the two sliding rods 1001 and the elastic telescopic rod 1101 are driven to be lifted upward. After being lifted upward, the two flexible rollers 902 are respectively in contact with and tightly fit with the outer wall of the propeller 202. The flexible rollers 902 are squeezed and deformed by the outer wall of the propeller 202. The resin overflowing from the edge of the propeller 202 is straightened by the two flexible rollers 902. The stripping knife 903 fits with the bottom of the propeller 202. The grinding strips on the two pulleys 1002 are in contact with and squeezed with the bottom of the propeller 202. The propeller 202 applies a reaction force to the grinding strips. The grinding strips are forced to form a V shape and apply a pulling force to the two pulleys 1002. The two pulleys 1002 are forced to make the two sliding rods 1001 slide close to each other, and the compression spring is forced to shrink. This can increase the contact area between the grinding strip and the outer wall of the propeller 202, and the bonding wheel 1102 is bonded to the bottom of the propeller 202, and the axle of one of the pulleys 1002 drives the transmission wheel thereon to bond to the side of the bonding wheel 1102, and then the annular electric track 303 is controlled to reciprocate horizontally along the rectangular electric track 302, and the two sliding blocks 304 are controlled to slide synchronously along the annular electric track 303 according to the torsion angle of the outer wall of the propeller 202, so that the two flexible rollers 902, the stripping knife 903, the grinding strip and the bonding wheel 1102 are always in contact with the outer wall of the propeller 202. Since the overflowing resin is straightened by the two flexible rollers 902, the stripping knife 903 can cut and strip most of the overflowing resin, and at the same time, the bonding wheel 1 102 rotates under the action of friction with the outer wall of the propeller 202, and exerts friction force on the driving wheel of one of the pulleys 1002. The driving wheel is forced to drive the pulley 1002 to rotate, and the pulley 1002 drives the grinding bar to move, so that the grinding bar moves around the surfaces of the two pulleys 1002, thereby grinding the resin remaining on the edge of the propeller 202. After the resin is cleaned, the staff rotates the lead screw in the driving assembly to make the lifting plate 901 drive the two flexible rollers 902, the stripping knife 903 and the elastic telescopic rod 1101 to reset. The grinding strips on the two pulleys 1002 no longer contact the bottom of the propeller 202, and the compression spring is released to drive the two sliding rods 1001 to slide and reset, and the sliding rod 1001 drives the corresponding pulley 1002 to reset.The telescopic end of the elastic telescopic rod 1101 is released and reset. The above steps can greatly save the operating steps of the staff, save time and effort, and effectively improve the work efficiency. Then the propeller 202 is removed from the two clamps 100, and the above steps are repeated to continue to produce a new propeller 202.

[0039] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A root-shaft-type flapping hinge integrated propeller, comprising a mounting seat (1), characterized in that: The invention also comprises a control mechanism, the control mechanism comprising a swing hinge (201), the swing hinge (201) being fixedly connected to one side of the mounting seat (1) in a through-type manner, the outer wall of the swing hinge (201) being rotatably sleeved with a propeller (202), the propeller (202) being integrally formed using a composite material, the root shaft hole of the propeller (202) being molded, the swing hinge (201) being made of a high-strength aluminum alloy shaft, and the swing hinge (201) being able to enable the propeller (202) to swing up and down under the action of an unbalanced load, so as to reduce the root load of the propeller (202).

2. A root shaft type flapping hinge integrated propeller according to claim 1, characterized in that: The control mechanism further comprises a connecting frame (203); an annular groove is provided at the top of the mounting seat (1); the connecting frame (203) is slidably connected in the annular groove; a wind direction plate (2031) is symmetrically fixedly connected to the top of the connecting frame (203); a detection plate (204) is hingedly connected between the two wind direction plates (2031); a torsion spring is provided between the detection plate (204) and one of the wind direction plates (2031); a connecting block (2041) is slidably connected in the connecting frame (203); a connecting rod A (205) is hingedly connected to one side of the detection plate (204); one end of the connecting rod A (205) is hingedly connected to the connecting block (2041); a connecting rod B (206) is hingedly connected to the bottom of the connecting block (2041); one end of the connecting rod B (206) is hingedly connected to a support ring (207); the support ring (207) is hingedly connected to the connecting frame (203).

3. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 2, characterized in that: The invention also comprises a rolling mechanism, wherein the rolling mechanism comprises a base (301), a rectangular electric track (302) is fixedly mounted on the base (301), a circular electric track (303) is slidably connected inside the rectangular electric track (302), a sliding block (304) is symmetrically slidably connected inside the circular electric track (303), a bracket (305) is fixedly connected between two sliding blocks (304), a bidirectional hydraulic cylinder (306) is fixedly mounted on the bottom of the inner wall of the bracket (305), a telescopic plate (307) is fixedly connected to the telescopic end of the bidirectional hydraulic cylinder (306), and the An electric guide rail (3071) is symmetrically fixedly mounted on the inner wall of the bracket (305); an extension shaft (3072) is slidably connected inside the electric guide rail (3071); a telescopic end of the extension shaft (3072) is fixedly connected to the telescopic end of the telescopic plate (307); a telescopic shaft (308) is fixedly connected to one side of the telescopic end of the telescopic plate (307); a connecting plate (309) is fixedly connected to the telescopic end of the telescopic shaft (308); a C-shaped frame (310) is slidably connected to one side of the connecting plate (309); and an electric heating roller (311) is slidably connected to the inner wall of the C-shaped frame (310).

4. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 3, characterized in that: The rolling mechanism further comprises a pressure sensor (401), the pressure sensor (401) being fixedly mounted on one side of the connecting plate (309), the pressure sensor (401) being in contact with the C-shaped frame (310), a hydraulic rod (402) being fixedly mounted on the outer wall of the fixed end of the telescopic shaft (308) via a support rod, the hydraulic rod (402) being electrically connected to the pressure sensor (401), and the telescopic end of the hydraulic rod (402) being fixedly connected to the connecting plate (309).

5. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 4, characterized in that: The invention also comprises a marking mechanism, the marking mechanism comprising a mounting box (501), the mounting box (501) being fixedly connected to the top of the inner wall of the bracket (305), a fan blade (502) being installed in the mounting box (501), air pipes (5021) being symmetrically connected to the two sides of the mounting box (501), both ends of one of the air pipes (5021) being connected to a telescopic pipe A (503), two groups of air holes being penetrated through the outer wall of the fixed end of the telescopic shaft (308), the telescopic end of the telescopic pipe A (503) being connected to the fixed end of the telescopic shaft (308), and the outer wall of the fixed end of the telescopic shaft (308) being connected to an L-shaped pipe A (504).

6. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 5, characterized in that: The marking mechanism further comprises a telescopic tube B (601), both ends of the other gas delivery tube (5021) are connected to the telescopic tube B (601), the telescopic end of the telescopic tube B (601) is connected to the fixed end of the telescopic shaft (308), the outer wall of the fixed end of the telescopic shaft (308) is connected to an L-shaped tube B (602), and a vent hole is provided through the telescopic end of the telescopic shaft (308).

7. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 6, characterized in that: The marking mechanism further comprises a pigment tube (701), the tops of the L-shaped tube A (504) and the L-shaped tube B (602) are both connected to a plurality of uniformly distributed pigment tubes (701), the tops of the inner walls of the L-shaped tube A (504) and the L-shaped tube B (602) are both slidably connected to a plurality of groups of uniformly distributed elastic slide plates (702), the bottoms of the plurality of groups of the elastic slide plates (702) are both fixedly connected to inclined plates (703), one ends of the L-shaped tube A (504) and the L-shaped tube B (602) are both connected to a telescopic spray tube (801), and one end of the telescopic spray tube (801) is through-type and fixedly connected to the C-shaped frame (310).

8. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 7, characterized in that: The cleaning mechanism also comprises a lifting plate (901), the lifting plate (901) being arranged on the lower side of the bidirectional hydraulic cylinder (306), the bracket (305) being connected to a driving assembly, the lifting plate (901) being connected to the driving assembly, the top of the lifting plate (901) being symmetrically rotatably connected to a flexible roller (902) and being fixedly connected to a stripping knife (903).

9. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 8, characterized in that: The cleaning mechanism also includes a sliding rod (1001), a sliding groove is provided on the top of the lifting plate (901), the sliding rod (1001) is symmetrically slidably connected in the sliding groove, a compression spring is arranged between the two sliding rods (1001), a pulley (1002) is rotatably connected to one side of the sliding rod (1001), and a grinding strip is wound around the two pulleys (1002).

10. The forming equipment of a root shaft type flapping hinge integrated propeller according to claim 9, characterized in that: It also comprises an elastic telescopic rod (1101), the top of the lifting plate (901) is fixedly connected to the elastic telescopic rod (1101), the telescopic end of the elastic telescopic rod (1101) is rotatably connected to a fitting wheel (1102), and one end of the rotating shaft of one of the pulleys (1002) is fixedly connected to a transmission wheel used in conjunction with the fitting wheel (1102).

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