Mounting vehicle for constant-speed transmission device of unmanned aerial vehicle

Abstract

The invention discloses an unmanned aerial vehicle constant-speed transmission device mounting vehicle, and relates to the technical field of mounting vehicles, the mounting vehicle comprises a bearing seat and a bottom plate, the top end of the bottom plate and the bottom end of the bearing seat are connected through a scissor fork assembly capable of lifting, the mounting vehicle further comprises a conveying unit, and the conveying unit comprises a top plate; two sliding rails are symmetrically arranged at the top end of the bearing base, a top plate capable of sliding in a reciprocating mode is jointly installed on the two sliding rails in a sliding mode, and a positioning base used for containing a constant-speed transmission device is arranged on the top plate. When the constant-speed transmission device of the unmanned aerial vehicle needs to be installed, a worker places the constant-speed transmission device on a positioning seat, and then a bearing seat and a top plate are jacked to the position of an installation groove of the constant-speed transmission device through a shear fork assembly; and then the top plate is pushed to slide towards one end of a spline groove of the engine gear mechanism on a sliding rail on the bearing seat until a spline on the constant-speed transmission device is meshed with the spline groove of the engine gear mechanism.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of installation vehicles, and particularly relates to a constant-speed transmission device installation vehicle for unmanned aerial vehicles. BACKGROUND

[0002] It is known that an unmanned mechanical vehicle is referred to as an unmanned aerial vehicle. The unmanned aerial vehicle is a device that is controlled by using radio remote control equipment and a self-provided program control device, or is completely or intermittently operated by an on-board computer. A constant-speed transmission device refers to a special device that is installed on an aero-engine, transmits power to an aircraft alternator, and converts a variable input rotating speed of the aero-engine into a constant output rotating speed.

[0003] When the constant-speed transmission device is installed on the unmanned aerial vehicle, multiple workers are needed to lift the constant-speed transmission device, then the constant-speed transmission device is transported into a mounting groove of the constant-speed transmission device, and then the spline of the constant-speed transmission device is slowly aligned with the spline groove of the engine gear mechanism, until the spline of the constant-speed transmission device is pushed into the spline groove of the engine gear mechanism, and until the spline is engaged, so that the installation work of the constant-speed transmission device is completed.

[0004] A patent with the name of "aircraft main landing gear installation vehicle" and the publication number CN221163353U and the publication date of June 18, 2024 is disclosed. The patent discloses an aircraft main landing gear installation vehicle, which comprises an installation vehicle body and wheels. The upper middle and left side of the installation vehicle body are respectively fixedly connected with a vehicle frame and a first box body. The inside of the first box body is rotatably connected with a first screw rod through a pair of bearings. The lower outer wall of the first screw rod is provided with an adjusting mechanism. The patent relates to the technical field of landing gear installation. The aircraft main landing gear can be moved to between two groups of rollers. The output shaft of the third motor drives the first umbrella-shaped gear to rotate through the second umbrella-shaped gear. The first umbrella-shaped gear drives the second screw rod to rotate. In this way, the second screw rod cooperates with the sliding groove of the second adjusting arm to drive a pair of vertical plates to move towards each other. The vertical plates drive the rollers to move through the concave plates. In this way, the aircraft main landing gear is tightly fixed. Therefore, the number of operators is relatively small, the cost is relatively low, and the landing gear is not easy to fall off and be damaged even if it is shaken. The use effect is better.

[0005] The prior art has the problems that the weight of the constant speed transmission device is about 40 kg, and the key is to assemble the spline on the shaft into the spline groove, the assembly of the spline and the spline groove not only requires that the central axis strictly coincides, but also requires that the circumferential angle is strictly matched, and because the weight is large, it is often found that the parts have been worn out when the circumferential direction is not aligned, in theory, alignment can be achieved by configuring sensors, but there is no installation space for the sensors in the spline groove, which greatly limits the use of intelligent devices, so the assembly difficulty in the prior art is great, and multiple workers are needed to lift and transport the constant speed transmission device into the installation groove, but because the installation position of the constant speed transmission device is at the lower front end of the engine, the installation space of the constant speed transmission device is small, so multiple workers are crowded together to install the constant speed transmission device, which makes the constant speed transmission device inconvenient to install, and further reduces the installation efficiency of the constant speed transmission device. SUMMARY

[0006] The purpose of the present application is to provide a unmanned aerial vehicle constant speed transmission device installation vehicle to solve the technical problems in the related art.

[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a unmanned aerial vehicle constant speed transmission device installation vehicle, comprising a bearing seat and a bottom plate, the top end of the bottom plate and the bottom end of the bearing seat are connected through a scissor assembly capable of lifting, further comprising a conveying unit, the conveying unit comprises a top plate, the top end of the bearing seat is symmetrically provided with two slide rails, the two slide rails are commonly provided with a top plate capable of reciprocating sliding, and the top plate is provided with a positioning seat for placing a constant speed transmission device.

[0008] The above-mentioned scissor assembly comprises a positioning shaft, a flat groove is formed in the bottom plate, one end of the flat groove is rotatably installed with a positioning shaft, the other end in the flat groove is slidably installed with a driving round rod, the bottom of the bearing seat is provided with a sliding groove, the same end of the positioning shaft in the sliding groove is rotatably installed with an auxiliary shaft, the other end of the sliding groove is slidably installed with a driven round rod, the positioning shaft and the driven round rod are connected through two symmetrical square rods, the driving round rod and the auxiliary shaft are connected through two symmetrical straight rods, and the two straight rods and the two square rods are rotatably connected through a connecting shaft.

[0009] The above-mentioned first driving member is installed on the bottom plate, the output end of the first driving member is connected with a driving screw, the driving round rod is provided with a driving plate, and the driving screw and the driving plate are threadedly connected.

[0010] The above-mentioned bottom plate is provided with a push handrail.

[0011] The above-mentioned bottom plate is uniformly provided with four supporting columns.

[0012] As described above, two mutually symmetrical support columns form a group. A first support plate is rotatably installed on each of the two support columns on one side of the base plate, and a second support plate is rotatably installed on each of the two support columns on the other side of the base plate. The first and second support plates on the same side of the base plate are connected to each other.

[0013] As mentioned above, both second support plates are located on top of the first support plate, and each of the two first support plates and the two second support plates is rotatably mounted with a caster wheel at its bottom end.

[0014] As described above, each of the two first support plates is provided with a bearing rod, and each of the two second support plates is provided with a bearing shaft. A hook plate is rotatably mounted on each of the two bearing shafts, and the two hook plates are respectively hooked to their corresponding bearing rods.

[0015] As described above, each of the two second support plates is provided with a return plate, and the two return plates and their corresponding hook plates are connected by a first elastic member.

[0016] The two hook plates are connected by a switch plate.

[0017] The beneficial effects of this invention are as follows: When it is necessary to install the constant speed transmission device of a UAV, the operator places the constant speed transmission device on the positioning seat, and then uses the scissor lift assembly to lift the support seat and top plate to the mounting slot position of the constant speed transmission device. Then, the top plate is pushed to slide along the slide rail on the support seat towards the spline groove end of the engine gear mechanism until the spline on the constant speed transmission device meshes with the spline groove of the engine gear mechanism. Then, the constant speed transmission device is installed in the mounting slot. The scissor lift assembly then disengages the support seat and top plate from the constant speed transmission device, thereby realizing the installation of the constant speed transmission device. The support of the constant speed transmission device by the support seat and top plate reduces the lifting work of the operator, and the sliding of the top plate on the slide rail can engage the spline on the constant speed transmission device with the spline groove of the engine gear mechanism, improving the installation efficiency of the constant speed transmission device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2A partial three-dimensional structural schematic diagram of another embodiment of the present invention;

[0021] Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure;

[0022] Figure 4 For the present invention Figure 3 A partial enlarged cross-sectional structural diagram at point M;

[0023] Figure 5 A partial cross-sectional structural schematic diagram from a first perspective of another embodiment of the present invention;

[0024] Figure 6 A partial cross-sectional structural schematic diagram from a second perspective of another embodiment of the present invention;

[0025] Figure 7 This is a partial cross-sectional structural diagram of the positions of the drive gear and the half gear in this invention;

[0026] Figure 8 A partial three-dimensional structural schematic diagram of another embodiment of the present invention is provided;

[0027] Figure 9 For the present invention Figure 8 A schematic diagram of its cross-sectional structure;

[0028] Figure 10 This is a schematic cross-sectional view of the internal structure of the hollow groove of the present invention;

[0029] Figure 11 This is a partial cross-sectional structural diagram of the locking rod position of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Bearing seat; 2. Base plate; 3. Top plate; 4. Slide rail; 5. Positioning seat; 6. Positioning shaft; 7. Driving round rod; 8. Auxiliary shaft; 9. Driven round rod; 10. Square rod; 11. Straight rod; 12. Connecting shaft; 13. First driving component; 14. Driving screw; 15. Driving plate; 16. Support column; 17. First support plate; 18. Second support plate; 19. Universal wheel; 20. Bearing round rod; 21. Bearing shaft; 22. Hook plate; 23. Return plate; 24. First elastic element; 25. Switch plate; 26. U-shaped plate; 27. Hollow groove; 28. Second driving component; 2 9. Third driving component; 30. Mounting bracket; 31. U-shaped bracket; 32. Drive gear; 33. Auxiliary round rod; 34. Half gear; 35. Block; 36. Triangular telescopic rod; 37. Triangular block; 38. Locking rod; 39. Locking groove; 40. Clamping rod; 41. Third elastic component; 42. Arc plate; 43. Positioning plate; 44. Limiting plate; 45. First wedge surface; 46. Push plate; 47. Second wedge surface; 48. Clearance groove; 49. Driven block; 50. Connecting rod; 51. Stop block; 52. Second elastic component; 53. Clamping plate; 54. Pressing plate; 55. Flat plate. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 To be continued Figure 11 The present invention will now be described in further detail.

[0033] One embodiment of the present invention relates to an installation vehicle for a constant speed transmission device for a drone, including a support 1 and a base plate 2. The top end of the base plate 2 and the bottom end of the support 1 are connected by a lifting scissor assembly. The vehicle also includes a conveying unit, which includes a top plate 3. Two slide rails 4 are symmetrically arranged on the top end of the support 1. The top plate 3, which can slide back and forth, is slidably mounted on the two slide rails 4. The top plate 3 is provided with a positioning seat 5 for placing the constant speed transmission device.

[0034] Specifically, a drone is a device operated using radio remote control equipment and its own program control device. A constant speed transmission device refers to a special device mounted on an aircraft engine that transmits power to the aircraft's alternator and converts the engine's varying input speed into a constant output speed. An installation vehicle is used to move the constant speed transmission device. The installation vehicle includes a carrier 1 and a base plate 2. The base plate 2 and the carrier 1 are connected by a scissor lift assembly. The scissor lift assembly can drive the carrier 1 to perform lifting operations. The scissor lift assembly includes a positioning shaft 6. A flat groove is formed on the base plate 2. The positioning shaft 6 is rotatably mounted at one end of the flat groove, and a drive rod 7 is slidably mounted at the other end of the flat groove. The bottom of the bearing seat 1 is provided with a sliding groove. An auxiliary shaft 8 is rotatably installed at the same end of the positioning shaft 6 in the sliding groove. A driven round rod 9 is slidably installed at the other end of the sliding groove. The positioning shaft 6 and the driven round rod 9 are connected by two symmetrical square rods 10. The driving round rod 7 and the auxiliary shaft 8 are connected by two symmetrical straight rods 11. The two straight rods 11 and the two square rods 10 are rotatably connected by a connecting shaft 12. A first driving member 13 is installed on the base plate 2. The output end of the first driving member 13 is connected to a driving screw 14. A driving plate 15 is provided on the driving round rod 7. The driving screw 14 and the driving plate 15 are threadedly connected.The base plate 2 is equipped with a push handle (not shown in the figure) to assist in pushing the base plate 2 to move. Two slide rails 4 are symmetrically arranged at the top of the support seat 1. The top plate 3 is slidably mounted on the two slide rails 4. As those skilled in the art will know, a positioning structure (such as pin positioning or step positioning) is provided between the slide rails 4 and the top plate 3. This positioning structure can position the top plate 3 on the slide rails 4. This positioning structure is common knowledge in the art and will not be elaborated further. The top plate 3 is equipped with a positioning seat 5 for placing the constant speed transmission device. The positioning seat 5 is adapted to the constant speed transmission device, allowing the positioning seat 5 to perform positioning operations on the constant speed transmission device. When the constant speed transmission device needs to be installed, the operator will... The transmission device is placed on the positioning seat 5, and then the first driving component 13 (the first driving component 13 is a device whose output end can rotate in both directions, preferably a motor) is activated to drive the drive screw 14 to rotate clockwise. The drive screw 14 and the drive plate 15 are threadedly connected. When the drive screw 14 rotates clockwise, it drives the drive plate 15 and the drive rod 7 to slide along the track of the flat groove towards the end near the positioning shaft 6. This causes the drive rod 7 to drive the two straight rods 11 and the two square rods 10 to rotate around the connecting shaft 12. This causes the straight rods 11 and the square rods 10 to drive the bearing seat 1 to move towards the top. This causes the bearing seat 1 to drive the constant speed transmission device to move towards the top through the top plate 3 and the positioning seat 5. Because the drive screw 14 and the drive plate 15 are meshed with each other, The rotation and lifting of the straight rod 11 and the square rod 10 will not cause wobbling, improving the stability of the lifting of the bearing seat 1. Until the constant speed transmission device is lifted to the mounting slot position, the operator pushes the top plate 3 towards the spline groove end near the engine gear mechanism, causing the top plate 3 to slide along the track of the slide rail 4. This causes the top plate 3 to drive the constant speed transmission device towards the spline groove end near the engine gear mechanism, until the spline on the constant speed transmission device meshes with the spline groove of the engine gear mechanism. Then, the operator uses six special bolts to fix the constant speed transmission device in place. After the constant speed transmission device is installed, the first drive component 13 is activated to drive the drive screw 14 to rotate counterclockwise. The drive screw 14... When rotated counterclockwise, the driving plate 15 and the driving rod 7 slide along the track of the flat groove towards the end away from the positioning shaft 6. This causes the driving rod 7 to drive the two straight rods 11 and the two square rods 10 to rotate around the connecting shaft 12. The straight rods 11 and the square rods 10 then move the bearing seat 1 towards the bottom, allowing the bearing seat 1 to descend until it and the top plate 3 disengage from the constant speed transmission device. This completes the installation of the constant speed transmission device. The support provided by the bearing seat 1 and the top plate 3 reduces the lifting work required by the operator. Furthermore, the sliding of the top plate 3 on the slide rail 4 allows the splines on the constant speed transmission device to engage with the spline grooves of the engine gear mechanism, improving the installation efficiency of the constant speed transmission device.

[0035] The drawback of the existing technology is that, since the constant speed transmission device weighs about 40 kg, multiple workers are needed to lift and transport it into the installation slot. However, because the installation position of the constant speed transmission device is at the lower front of the engine, the installation space for the constant speed transmission device is small. Therefore, it is crowded for multiple workers to install it together, making the installation of the constant speed transmission device inconvenient and reducing the installation efficiency of the constant speed transmission device.

[0036] The beneficial effects of this embodiment are as follows: When it is necessary to install the constant speed transmission device of the UAV, the operator places the constant speed transmission device on the positioning seat 5, and then uses the scissor fork assembly to lift the support seat 1 and the top plate 3 to the mounting slot position of the constant speed transmission device. Then, the operator pushes the top plate 3 to slide along the slide rail 4 on the support seat 1 towards one end of the spline groove of the engine gear mechanism until the spline on the constant speed transmission device meshes with the spline groove of the engine gear mechanism. Then, the constant speed transmission device is installed in the mounting slot. The scissor fork assembly then drives the support seat 1 and the top plate 3 to disengage from the constant speed transmission device, thereby realizing the installation of the constant speed transmission device. The support of the constant speed transmission device by the support seat 1 and the top plate 3 reduces the lifting work of the operator, and the sliding of the top plate 3 on the slide rail 4 can engage the spline on the constant speed transmission device with the spline groove of the engine gear mechanism, improving the installation efficiency of the constant speed transmission device.

[0037] In another embodiment of the present invention, four support columns 16 are evenly arranged at the bottom end of the base plate 2; two mutually symmetrical support columns 16 form a group, and a first support plate 17 is rotatably installed on each of the two support columns 16 on one side of the base plate 2, and a second support plate 18 is rotatably installed on each of the two support columns 16 on the other side of the base plate 2. The first support plate 17 and the second support plate 18 on the same side of the base plate 2 are connected to each other; the two second support plates 18 are both located on top of the first support plate 17, and the bottoms of the two first support plates 17 and the two second support plates 18 are connected to each other. Each end is rotatably mounted with a universal wheel 19; each of the two first support plates 17 is provided with a bearing rod 20, each of the two second support plates 18 is provided with a bearing shaft 21, and each of the two bearing shafts 21 is rotatably mounted with a hook plate 22, and the two hook plates 22 are respectively hooked to their corresponding bearing rods 20; each of the two second support plates 18 is provided with a return plate 23, and each of the two return plates 23 and their corresponding hook plates 22 is connected by a first elastic element 24; the two hook plates 22 are connected by a switch plate 25.

[0038] Specifically, when the base plate 2 and the support seat 1 are raised and lowered, the base plate 2 needs to be positioned. Currently, the universal wheels 19 are locked using brakes, but even when locked, they still wobble. This wobbling during the raising and lowering of the constant speed transmission device affects the meshing of the splines of the constant speed transmission device with the spline grooves of the engine, thus impacting the meshing efficiency and installation efficiency. Therefore, when raising and lowering the base and support seat 1, the base needs to be positioned. When positioning the base plate 2, the operator rotates the switch plate 25 to move the hook plate 22 around the support shaft 21. The center rotates, and a positioning hook is provided on the hook plate 22. The positioning hook and the bearing rod 20 are adapted to each other. The hook plate 22 drives the positioning hook to disengage from the bearing rod 20, so that the bearing rod 20 no longer provides support force to the hook plate 22. Simultaneously, as the hook plate 22 rotates around the bearing shaft 21, the hook plate 22 compresses the first elastic element 24 (the first elastic element 24 is an element that can extend and return to its original position, preferably a spring), so that the first elastic element 24 is in a compressed state until the positioning hook and the bearing rod 20 disengage. The first elastic element 24 rebounds and drives the hook plate 22 to rotate to a position perpendicular to the second support plate 18. Under the gravity of the base plate 2 and the support column 16, the first support plate 17 and the second support plate 18... Rotating on the support column 16 causes the first support plate 17 and the second support plate 18 to disengage the caster 19 from the ground. The second support plate 18 is located on top of the first support plate 17, while the bottom of the support column 16 contacts the ground. This releases force on the caster 19 while simultaneously positioning the base plate 2 via the support column 16, preventing swaying during lifting and lowering of the base plate 2 and the support seat 1. This improves the stability of the support seat 1 driving the constant speed transmission device during lifting and lowering operations. When it is necessary to move the base plate 2 and the support seat 1, the worker steps on the second support plate 18, which rotates the first support plate 17, causing the first support plate 17 and the second support plate 18 to press the caster 19 firmly against the ground until the hook plate 22 contacts the support. When the carrying rods 20 are pressed together, the hook plate 22 rotates around the bearing shaft 21 under the pressing action of the carrying rods 20. During the rotation of the hook plate 22 around the bearing shaft 21, the hook plate 22 compresses the first elastic element 24, so that the first elastic element 24 is in a compressed state until the positioning hook and the carrying rod 20 are pressed together. Under the rebound action of the first elastic element 24, the carrying rod 20 and the positioning hook on the hook plate 22 are pressed together and connected, so that the hook plate 22 and the carrying rod 20 are adapted to each other to perform positioning connection work on the first support plate 17 and the second support plate 18, so that the universal wheels 19 at the bottom of the first support plate 17 and the second support plate 18 can drive the base plate 2 to move, thereby realizing the convenience of moving the base plate 2.

[0039] In another embodiment of the present invention, a calibration unit is provided on the top plate 3. The calibration unit includes a U-shaped plate 26. A hollow groove 27 is formed at the end of the top plate 3. The U-shaped plate 26 is slidably installed in the hollow groove 27. The inner wall of the hollow groove 27 and the U-shaped plate 26 are connected by a second driving member 28. Two third driving members 29 are symmetrically arranged on the U-shaped plate 26. Each of the output ends of the two third driving members 29 is connected to a mounting bracket 30. A U-shaped bracket 31 is slidably arranged on each of the two mounting brackets 30. A drive gear 32 is rotatably installed at the middle position of each of the two U-shaped brackets 31. The bottom ends of the two drive gears 32 are connected to... There is an auxiliary round rod 33. Two half gears 34 are symmetrically arranged on the side of the driving gear 32 on the two U-shaped frames 31 in a rotational engagement manner. The two half gears 34 on the same U-shaped frame 31 are meshed with their corresponding driving gears 32. The parts of the four half gears 34 without teeth are provided with blocks 35. A triangular telescopic rod 36 is provided on each of the two blocks 35 located near the top plate 3, and the triangular telescopic rod 36 is adapted to the spline shape on the constant speed transmission device. A triangular block 37 is provided on each of the two blocks 35 located away from the top plate 3, and the two triangular blocks 37 are adapted to the spline groove of the engine.

[0040] Specifically, due to the short, even invisible, viewing distance between the splines on the engine and the constant speed transmission when they mesh, engagement between the splines of the constant speed transmission and the splines on the engine is extremely difficult. The splines of the constant speed transmission are very delicate and easily damaged, leading to oil leaks. Furthermore, the high temperature in the nacelle makes them prone to ignition, necessitating replacement of any damaged splines, further increasing the installation cost of the constant speed transmission. Therefore, to ensure accurate meshing of the splines (i.e., the splines on the constant speed transmission) and the spline grooves (the engine spline grooves), a positioning operation is required. This ensures accurate meshing. The operator pushes the top plate 3 and the positioning seat 5, causing the constant speed transmission to move towards the... Before the spline groove end near the engine moves, the third drive component 29 (the third drive component 29 is a device whose output end can perform linear reciprocating motion, preferably a cylinder) is activated to drive the mounting bracket 30 to move away from the top plate 3. The mounting bracket 30 drives the U-shaped bracket 31 to move away from the top plate 3. The U-shaped bracket 31 drives the triangular block 37 and the triangular telescopic rod 36 to move away from the top plate 3 via the half gear 34 and the square block 35, until the triangular block 37 moves to the position where it meshes with the spline groove on the engine. Then, the second drive component 28 (the second drive component 28 is a device whose output end can perform linear reciprocating motion, preferably a cylinder) is activated to drive the U-shaped plate 26 to move towards the spline groove end near the engine. The U-shaped plate 26, via the third drive component 28, drives the U-shaped bracket 36 to move away from the top plate 3, until the triangular block 37 moves to the position where it meshes with the spline groove on the engine. Then, the second drive component 28 is activated to drive the U-shaped plate 26 to move towards the spline groove end near the engine. The three drive components 29 and the U-shaped frame 31 drive the triangular blocks 37 and the triangular telescopic rod 36 to move towards the spline groove end near the engine until the two triangular blocks 37 can abut against the spline groove of the engine. Then, the operator pulls the triangular telescopic rod 36 (the triangular telescopic rod 36 is a curved plate with an acute angle in the cross section, and the bend of the triangular telescopic rod 36 is matched with the outer wall contour of the spline on the constant speed transmission device. The interior of the triangular telescopic rod 36 consists of curved plates with the same shape for telescopic connection, similar to the telescopic rod of an umbrella, the difference being that the cross section of the triangular telescopic rod 36 is a curved plate) to stretch it, so that the end of the triangular telescopic rod 36 abuts against the spline on the constant speed transmission device. Then, the operator pushes the top plate 3 and the constant speed transmission device towards the spline groove end near the engine. As the splined end near the engine moves, the triangular telescopic rod 36 retracts accordingly. Simultaneously, the second drive component 28 also retracts, keeping the triangular block 37 pressed firmly against the splined groove of the engine. During retraction, the triangular telescopic rod 36 remains outside the spline on the constant speed transmission device until it reaches the end of its retraction stroke. Then, the operator rotates the auxiliary round rod 33 90 degrees, causing it to drive the drive gear 32 to rotate 90 degrees. Since the drive gear 32 meshes with the two half gears 34, and all parameters of the two half gears 34 and the drive gear 32 are identical (e.g., module, pitch circle diameter, and pressure angle), the drive gear 32 can drive the two half gears 34 to rotate 90 degrees.This process disengages the triangular telescopic rod 36 from the spline on the constant speed transmission device, and the triangular block 37 from the spline groove of the engine. Then, the third drive component 29 moves the mounting bracket 30 towards the end closer to the top plate 3. The mounting bracket 30 then moves the U-shaped bracket 31 towards the end closer to the top plate 3. This ensures that the U-shaped bracket 31, triangular block 37, and triangular telescopic rod 36 do not affect the installation of the constant speed transmission device. The operator pushes the top plate 3, causing the constant speed transmission device to move towards the end closer to the spline groove of the engine. The top plate 3 then causes the spline on the constant speed transmission device to move linearly along the trajectory of the slide rail 4, thereby increasing the probability of the spline on the constant speed transmission device engaging with the spline groove of the engine and preventing damage to the spline on the constant speed transmission device and the spline groove of the engine. This improves the installation efficiency of the constant speed transmission device.

[0041] Preferably, each of the two auxiliary round rods 33 is provided with a locking rod 38 on its side wall, and each of the two locking rods 38 is provided with a locking groove 39. A locking rod 40 is slidably installed in each of the two locking grooves 39. Each of the two locking grooves 39 and its corresponding locking rod 40 is connected by a third elastic member 41. Each of the two U-shaped frames 31 is provided with an arc plate 42 at its bottom end. Each of the two arc plates 42 is provided with two concave surfaces. The included angle between the two concave surfaces on the same arc plate 42 is 90 degrees. The two concave surfaces on the same arc plate 42 are respectively abutted against each other with their corresponding locking rods 40.

[0042] Specifically, when the auxiliary round rod 33 is not rotating, the locking rod 38 is located in one of the concave surfaces on the arc plate 42, so that the locking rod 40 positions the locking rod 38 and the auxiliary round rod 33 by pressing against the concave surface. As those skilled in the art will know, for ease of storage, the auxiliary round rod 33 can be set as a telescopic rod, which is common knowledge in the art and will not be elaborated. When the auxiliary round rod 33 rotates 90 degrees, the auxiliary round rod 33 drives the locking rod 38 to rotate, and the locking rod 38 drives the locking rod 40 to rotate from one concave surface to another concave surface. Under the elastic force of the third elastic element 41 (the third elastic element 41 is an element that can telescopically reset, preferably a spring), the locking rod 40 presses against the concave surface, so that the locking rod 38 and the locking rod 40 position the auxiliary round rod 33 by rotation, preventing the auxiliary round rod 33 from driving the drive gear 32 to rotate and change the position of the triangular block 37 and the triangular telescopic rod 36.

[0043] In another embodiment of the present invention, a positioning unit is provided on the top plate 3. The positioning unit includes a positioning plate 43. The positioning plate 43 is provided at the end of the top plate 3. A limiting plate 44 is slidably mounted on the positioning plate 43. The bottom of the limiting plate 44 is configured as a first wedge-shaped surface 45. A push plate 46 is slidably mounted on the top plate 3 at the bottom of the limiting plate 44. The top surface of the push plate 46 is configured as a second wedge-shaped surface 47, and a wedge is formed between the second wedge-shaped surface 47 and the first wedge-shaped surface 45. In coordination, two symmetrical clearance grooves 48 are formed on the top plate 3 at the corresponding positions of the third driving member 29. A driven block 49 is slidably installed in one of the clearance grooves 48. The driven block 49 and the push plate 46 are connected by a connecting rod 50. A stop block 51 is provided on the U-shaped plate 26 on the same side as the driven block 49. The stop block 51 and the driven block 49 are adapted to each other. The driven block 49 and the inner wall of the clearance groove 48 are connected by a second elastic member 52.

[0044] Specifically, when the operator pushes the top plate 3 and the constant speed transmission device towards the spline groove end near the engine, the triangular telescopic rod 36 retracts accordingly. Simultaneously, the second drive component 28 also retracts, causing the triangular block 37 to remain pressed against the spline groove of the engine. Simultaneously, the top plate 3 drives the driven block 49 to move towards the spline groove end near the engine until the telescopic rod retracts to the end of its retraction stroke. During this process, the driven block 49 and the stop block 51 abut against each other, while the position of the stop block 51 remains unchanged, causing the driven block 49 to move along the clearance groove 48. The sliding trajectory causes the driven block 49 to compress the second elastic element 52 (the second elastic element 52 is a component capable of extension and retraction, preferably a spring), putting the second elastic element 52 into a compressed state. Simultaneously, the driven block 49 drives the connecting rod 50 to move, and the connecting rod 50 drives the push plate 46 to move towards one end of the top plate 3. Since the top surface of the push plate 46 is the second wedge-shaped surface 47 and the bottom of the limiting plate 44 is the first wedge-shaped surface 45, the second wedge-shaped surface 47 and the first wedge-shaped surface 45 are wedge-shapedly fitted together, causing the push plate 46 to... The limiting plate 44 is pushed to move closer to the spline end on the constant speed transmission device. Those skilled in the art will know that, in order to adapt and position itself to the spline on the constant speed transmission device, the top of the limiting plate 44 can be provided with an arc-shaped tooth structure that adapts to the spline on the constant speed transmission device, or the top of the limiting plate 44 can be made into a flexible, deformable rubber structure. The purpose is the same: to adapt to the spline on the constant speed transmission device. Therefore, after the pushing plate 46 moves a certain distance closer to the spline end on the constant speed transmission device, the limiting plate 44... 4. It can perform positioning operations on the splines of the constant speed transmission device, so that after the triangular telescopic rod 36 disengages from the splines on the constant speed transmission device, the limiting plate 44 can perform positioning operations on the splines on the constant speed transmission device. The splines on the constant speed transmission device will not rotate without the limiting of the triangular telescopic rod 36, thereby improving the stability of the meshing between the splines on the constant speed transmission device and the spline groove of the engine. It will not cause the spline groove of the engine and the splines on the constant speed transmission device to collide and damage each other, thus improving the installation efficiency of the constant speed transmission device.

[0045] In another embodiment of the present invention, a clamping plate 53 is provided on the top plate 3, and a pressing plate 54 is slidably provided on the clamping plate 53. The clamping plate 54 and the limiting plate 44 are connected by a flat plate 55.

[0046] Specifically, during the process of the limiting plate 44 moving towards the spline end of the constant speed transmission device, the limiting plate 44 drives the clamping plate 54 to move towards the end of the constant speed transmission device through the flat plate 55, so that the clamping plate 54 can perform clamping and positioning operations on the spline shaft of the constant speed transmission device, further preventing the spline on the constant speed transmission device from rotating.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vehicle for installing a constant speed transmission device for unmanned aerial vehicles (UAVs), comprising a support base and a base plate, wherein the top end of the base plate and the bottom end of the support base are connected by a lifting scissor lift assembly, characterized in that, It also includes a conveying unit, which includes a top plate. Two slide rails are symmetrically arranged at the top of the bearing seat. The top plate, which can reciprocate, is slidably mounted on the two slide rails. The top plate is provided with a positioning seat for placing a constant speed transmission device.

2. The UAV constant speed transmission device installation vehicle according to claim 1, characterized in that, The scissor lift assembly includes a positioning shaft. A flat groove is formed on the base plate. The positioning shaft is rotatably mounted at one end of the flat groove, and a driving round rod is slidably mounted at the other end of the flat groove. A sliding groove is formed at the bottom of the support seat. An auxiliary shaft is rotatably mounted at the same end of the positioning shaft in the sliding groove, and a driven round rod is slidably mounted at the other end of the sliding groove. The positioning shaft and the driven round rod are connected by two symmetrical square rods. The driving round rod and the auxiliary shaft are connected by two symmetrical straight rods. The two straight rods and the two square rods are rotatably connected by a connecting shaft.

3. The UAV constant speed transmission device installation vehicle according to claim 2, characterized in that, A first driving component is mounted on the base plate. The output end of the first driving component is connected to a lead screw. An active plate is provided on the active rod. The lead screw and the active plate are threaded together.

4. The UAV constant speed transmission device installation vehicle according to claim 1, characterized in that, The base plate is equipped with a propulsion handrail.

5. The UAV constant speed transmission device installation vehicle according to claim 1, characterized in that, Four support columns are evenly arranged at the bottom of the base plate.

6. The UAV constant speed transmission device installation vehicle according to claim 5, characterized in that, Two symmetrical support columns form a group. A first support plate is rotatably installed on each of the two support columns on one side of the base plate, and a second support plate is rotatably installed on each of the two support columns on the other side of the base plate. The first and second support plates on the same side of the base plate are connected to each other.

7. The UAV constant speed transmission device installation vehicle according to claim 6, characterized in that, Both second support plates are located on top of the first support plate, and each of the two first support plates and the two second support plates is rotatably mounted with a caster wheel at its bottom end.

8. The UAV constant speed transmission device installation vehicle according to claim 7, characterized in that, Each of the two first support plates is provided with a bearing rod, and each of the two second support plates is provided with a bearing shaft. A hook plate is rotatably mounted on each of the two bearing shafts, and the two hook plates are respectively hooked to their corresponding bearing rods.

9. The UAV constant speed transmission device installation vehicle according to claim 8, characterized in that, Each of the two second support plates is provided with a return plate, and the two return plates and their corresponding hook plates are connected by a first elastic element.

10. The UAV constant speed transmission device installation vehicle according to claim 9, characterized in that, The two hook plates are connected by a switch plate.

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