Special assembling, adjusting and testing auxiliary device for propeller

Abstract

The utility model provides a special assembling and testing auxiliary device for a propeller, which comprises a base, a locking disc, an adapter flange, a propeller supporting flange and a driving cylinder, the lower part of the adapter flange is rotationally connected with the inner wall of the base through a bearing, and a locking screw corresponding to the locking disc is arranged on the base; the locking disc is fixedly connected with the bottom of the adapter flange, and the bottom of the propeller supporting flange is fixedly connected with the upper end of the adapter flange; the driving cylinder is fixedly connected with the lower end of an inner ring of the propeller supporting flange, a telescopic rod of the driving cylinder penetrates through the inner ring of the propeller supporting flange and extends out of the propeller supporting flange, an inner conical disc is fixedly connected to the telescopic rod, and an outer conical disc matched with the inner conical disc is fixedly installed at the upper end of the inner ring of the propeller supporting flange. The assembling, adjusting and testing auxiliary device special for the propeller has the advantages of being simple and reliable in structure, firm in installation and free of damage to the bottom of the propeller.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) propeller assembly and debugging technology, and in particular to a special assembly and debugging auxiliary device for propellers. Background Technology

[0002] Drone propellers generally consist of two main parts: blades and hub. They involve dozens or even hundreds of components, and the assembly of each component requires different angles.

[0003] Currently, there are two main methods for assembling and measuring propellers. One method involves placing the propeller hub on a table and assembling each component step-by-step according to the process documents. The disadvantages are slow efficiency, friction between the hub and the table surface, and potential damage. Measurement is done by placing the propeller directly on a cast iron platform, requiring rotation of the propeller to measure the dimensions of each blade, posing a risk of blade damage during handling, and is labor-intensive and inefficient. The second method involves creating a propeller fixture that allows for free rotation of the propeller during both assembly and measurement. However, existing fixtures are prone to collisions at the hub during assembly and require screws for fixation, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide a special assembly and adjustment auxiliary device for propellers, which solves the problem of inconvenience in propeller assembly and measurement.

[0005] This utility model provides a propeller-specific assembly and adjustment auxiliary device, including a base, a stop disc, an adapter flange, a propeller support flange, and a drive cylinder. The base has an installation chamber, the stop disc is disposed in the installation chamber, and the lower part of the adapter flange is disposed in the installation chamber. The lower part of the adapter flange is rotatably connected to the inner wall of the base via a bearing. A stop screw corresponding to the stop disc is installed on the base. The stop disc is fixedly connected to the bottom of the adapter flange, and the bottom of the propeller support flange is fixedly connected to the upper end of the adapter flange. The drive cylinder is fixedly connected to the lower end of the inner ring of the propeller support flange. The telescopic rod of the drive cylinder passes through the inner ring of the propeller support flange and extends out of the outside of the propeller support flange. An inner conical disc is fixedly connected to the telescopic rod, and an outer conical disc adapted to the inner conical disc is fixedly installed on the upper end of the inner ring of the propeller support flange.

[0006] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, wherein the stop disc has a central hole, the stop disc is arranged around the periphery of the drive cylinder through the central hole, and the inner ring of the adapter flange is arranged around the periphery of the drive cylinder.

[0007] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, wherein the base includes a base plate and a cylindrical shell, the base plate is fixedly connected to the lower end of the cylindrical shell, and the inner cavity of the cylindrical shell is the installation chamber.

[0008] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, wherein the cylindrical housing is provided with a threaded hole adapted to the stop screw, the threaded hole penetrates the side wall of the cylindrical housing, and the stop screw is threadedly connected to the cylindrical housing through the threaded hole.

[0009] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, wherein the adapter flange includes a rotating connection part and a flange connection part fixedly connected to the upper end of the rotating connection part, the flange connection part is located above the cylindrical shell, and the rotating connection part is rotatably connected to the inner wall of the cylindrical shell through the bearing.

[0010] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, wherein the stop disc and the rotating connection part are connected and fixed by multiple connecting bolts.

[0011] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, wherein the propeller support flange includes an upper flange, a lower flange, and a hollow connecting body. The upper flange and the lower flange are respectively connected and fixed to the upper and lower ends of the hollow connecting body. The lower flange is connected and fixed to the flange connection part by a plurality of fixing bolts, and the drive cylinder is connected and fixed to the inner ring of the lower flange.

[0012] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, wherein the inner cone disk is a cone-shaped structure that is larger at the top and smaller at the bottom, the outer cone disk is provided with a cone-shaped inner ring that is larger at the top and smaller at the bottom, and the outer cone disk is provided with an opening that runs from top to bottom through the side wall of the outer cone disk.

[0013] According to the present invention, a special assembly and adjustment auxiliary device for propellers is provided, wherein a mounting platform is provided at the bottom of the outer ring of the outer cone disk, and a mounting groove adapted to the mounting platform is provided at the upper end of the upper flange. The mounting platform is fixedly installed in the mounting groove so that the upper part of the outer cone disk protrudes from the upper end face of the upper flange.

[0014] According to the present invention, a propeller-specific assembly and adjustment auxiliary device is provided, and multiple reserved bolt holes are also provided on the upper flange.

[0015] This utility model provides a propeller-specific assembly and adjustment auxiliary device. The lower part of the adapter flange is rotatably connected to the inner wall of the base via bearings. A stop disc is fixedly connected to the bottom of the adapter flange, the bottom of the propeller support flange is fixedly connected to the upper end of the adapter flange, and the drive cylinder is fixedly connected to the lower end of the inner ring of the propeller support flange. This allows the stop disc, adapter flange, propeller support flange, and drive cylinder to rotate synchronously and freely. By installing stop screws corresponding to the stop disc on the base, the rotation of the stop disc is restricted, thereby limiting the rotation of the stop disc. The propeller plate, adapter flange, propeller support flange, and drive cylinder are synchronously stopped. The drive cylinder's telescopic rod extends beyond the inner ring of the propeller support flange, and an inner conical disc is fixedly mounted on the telescopic rod. An outer conical disc, compatible with the inner conical disc, is fixedly mounted on the upper end of the inner ring of the propeller support flange. The contraction of the drive cylinder's telescopic rod controls the inner conical disc to move downwards, pressing against the outer conical disc, causing it to deform outwards. The extension of the drive cylinder's telescopic rod controls the inner conical disc to push upwards, disengaging it from the outer conical disc and restoring it to its original shape. Therefore, the propeller-specific assembly and adjustment auxiliary device provided by this invention has the advantages of simple and reliable structure, secure installation, and no need to damage the propeller's bottom structure. Furthermore, it provides more convenient and sensitive propeller assembly, measurement, and rotation, with a low failure rate, and can be used for auxiliary assembly, adjustment, and measurement of propellers during production. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the propeller-specific assembly and adjustment auxiliary device of this utility model;

[0018] Figure 2 This is a cross-sectional view of the propeller-specific assembly and adjustment auxiliary device of this utility model;

[0019] Figure 3 This is a schematic diagram of the cooperative structure of the drive cylinder, inner cone disk, and outer cone disk in the propeller-specific assembly and adjustment auxiliary device of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the propeller-specific assembly and adjustment auxiliary device of this utility model after the propeller is installed.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 101. Base plate; 102. Cylindrical shell;

[0023] 2. Stop disc; 3. Adapter flange;

[0024] 4. Propeller support flange; 401. Upper flange; 402. Lower flange; 403. Hollow connector;

[0025] 5. Drive cylinder; 6. Bearing; 7. Locking screw; 8. Inner cone disc;

[0026] 9. Outer conical disc; 901. Opening; 902. Mounting platform;

[0027] 10. Fixing bolts. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figures 1 to 4 As shown, the propeller-specific assembly and adjustment auxiliary device of this utility model includes a base 1, a stop disc 2, an adapter flange 3, a propeller support flange 4, and a drive cylinder 5. The base 1 has an installation chamber, the stop disc 2 is located in the installation chamber, and the lower part of the adapter flange 3 is located in the installation chamber. The lower part of the adapter flange 3 is rotatably connected to the inner wall of the base 1 via a bearing 6. A stop screw 7 corresponding to the stop disc 2 is installed on the base 1. The stop disc 2 is fixedly connected to the bottom of the adapter flange 3, and the bottom of the propeller support flange 4 is fixedly connected to the upper end of the adapter flange 3. The drive cylinder 5 is fixedly connected to the lower end of the inner ring of the propeller support flange 4. The telescopic rod of the drive cylinder 5 passes through the inner ring of the propeller support flange 4 and extends out of the outside of the propeller support flange 4. An inner conical disc 8 is fixedly connected to the telescopic rod, and an outer conical disc 9 adapted to the inner conical disc 8 is fixedly installed on the upper end of the inner ring of the propeller support flange 4.

[0032] That is, the stop disc 2, the adapter flange 3, the propeller support flange 4, and the drive cylinder 5 can rotate synchronously. By retracting the telescopic rod of the drive cylinder 5, the inner cone disc 8 can be controlled to move downward and squeeze the outer cone disc 9, causing the outer cone disc 9 to deform outward; by extending the telescopic rod of the drive cylinder 5, the inner cone disc 8 can be controlled to push upward, and the inner cone disc 8 can be dislodged from the outer cone disc 9, so that the outer cone disc 9 returns to its original shape.

[0033] In use, the propeller hub is placed directly on the propeller support flange 4, with the base groove of the hub aligned with the outer conical disc 9. Then, the extension rod of the drive cylinder 5 is controlled to move downwards, causing the inner conical disc 8 to press down on the outer conical disc 9. Under this pressure, the outer conical disc 9 expands outwards, thus tightly engaging with the base groove of the hub, achieving the positioning and installation of the propeller hub. Other propeller components can then be installed. After installation, the maximum rotating diameter, blade angle, stiffness, and other information of the propeller can be measured, making it convenient to use.

[0034] Therefore, the propeller-specific assembly and adjustment auxiliary device of this utility model has the advantages of simple and reliable structure, firm installation, and no need to damage the bottom structure of the propeller. Moreover, it is more convenient and sensitive for propeller assembly, measurement and rotation, and has a low failure rate. It can be used for auxiliary assembly, debugging and measurement of propellers in the production process.

[0035] Specifically, the propeller-specific assembly and adjustment auxiliary device of this utility model only requires changing the corresponding design dimensions of the outer cone disk 9 on the propeller support flange 4 and the inner cone disk 8 on the drive cylinder 5 when using different propeller models.

[0036] Specifically, depending on actual usage requirements, the drive cylinder 5 can adopt existing structural forms such as pneumatic cylinders, hydraulic cylinders, and electric cylinders.

[0037] Specifically, the stop disc 2 is provided with a central hole, and the stop disc 2 is arranged around the drive cylinder 5 through the central hole, and the inner ring of the adapter flange 3 is arranged around the drive cylinder 5.

[0038] Specifically, the base 1 includes a base plate 101 and a cylindrical shell 102. The base plate 101 is fixedly connected to the lower end of the cylindrical shell 102, and the inner cavity of the cylindrical shell 102 is the mounting chamber. Multiple bolt holes are provided on the base plate 101 to facilitate the overall installation of the device on a workbench or testing platform.

[0039] The cylindrical housing 102 has a threaded hole adapted to the stop screw 7. This threaded hole penetrates the side wall of the cylindrical housing 102, and the stop screw 7 is threadedly connected to the cylindrical housing 102 through this hole. That is, by tightening the stop screw 7, the end of the stop screw 7 extends into the cylindrical housing 102 and abuts against the outer side of the stop disc 2, thereby restricting the rotation of the stop disc 2. When the stop screw 7 is loosened, the end of the stop screw 7 disengages from the stop disc 2, allowing the stop disc 2 to rotate.

[0040] Specifically, the adapter flange 3 includes a rotatable connecting part and a flange connecting part fixedly connected to the upper end of the rotatable connecting part. The rotatable connecting part is located inside the cylindrical housing 102, and the rotatable connecting part is rotatably connected to the inner wall of the cylindrical housing 102 via a bearing 6. The flange connecting part is located above the cylindrical housing 102 and is used to connect and fix it to the propeller support flange 4.

[0041] The stop disc 2 and the rotating connection part of the transition flange 3 are connected and fixed by multiple connecting bolts to achieve synchronous rotation or synchronous stop between the stop disc 2 and the transition flange 3.

[0042] Specifically, the propeller support flange 4 includes an upper flange 401, a lower flange 402, and a hollow connecting body 403. The upper flange 401 and lower flange 402 are respectively connected and fixed to the upper and lower ends of the hollow connecting body 403. The lower flange 402 is connected and fixed to the flange connection part of the transition flange 3 by multiple fixing bolts 10. The drive cylinder 5 is connected and fixed to the inner ring of the lower flange 402, thereby achieving synchronous rotation or synchronous stopping of the stop disc 2, the transition flange 3, the propeller support flange 4, and the drive cylinder 5.

[0043] Specifically, the inner conical disk 8 is a conical structure that is larger at the top and smaller at the bottom, the outer conical disk 9 has a conical inner ring that is larger at the top and smaller at the bottom, the outer conical disk 9 has an opening 901 that runs from top to bottom through the side wall of the outer conical disk, and the outer conical disk 9 is made of a material with certain deformation properties so that when the inner conical disk 8 presses the outer conical disk 9 downward, the outer conical disk 9 can produce outward expansion deformation.

[0044] Specifically, a mounting platform 902 is provided at the bottom of the outer ring of the outer cone disk 9, and a mounting groove adapted to the mounting platform 902 is provided at the upper end of the upper flange 401. The mounting platform 902 is fixedly installed in the mounting groove so that the upper part of the outer cone disk 9 protrudes from the upper end face of the upper flange for engaging with the base groove of the propeller hub.

[0045] In addition, multiple pre-drilled bolt holes can be provided on the upper flange 401, allowing for bolt connection during propeller measurement and installation to prevent the propeller from falling off and further improve reliability.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A propeller-specific assembly and adjustment auxiliary device, characterized in that, The device includes a base, a stop disc, an adapter flange, a propeller support flange, and a drive cylinder. The base has an installation chamber, the stop disc is located within the installation chamber, and the lower part of the adapter flange is located within the installation chamber. The lower part of the adapter flange is rotatably connected to the inner wall of the base via a bearing. A stop screw corresponding to the stop disc is installed on the base. The stop disc is fixedly connected to the bottom of the adapter flange, and the bottom of the propeller support flange is fixedly connected to the upper end of the adapter flange. The drive cylinder is fixedly connected to the lower end of the inner ring of the propeller support flange. The telescopic rod of the drive cylinder passes through the inner ring of the propeller support flange and extends outside the propeller support flange. An inner conical disc is fixedly connected to the telescopic rod, and an outer conical disc adapted to the inner conical disc is fixedly installed on the upper end of the inner ring of the propeller support flange.

2. The propeller-specific assembly and adjustment auxiliary device according to claim 1, characterized in that, The stop disc has a central hole, and the stop disc is arranged around the periphery of the drive cylinder through the central hole. The inner ring of the adapter flange is also arranged around the periphery of the drive cylinder.

3. The propeller-specific assembly and adjustment auxiliary device according to claim 1, characterized in that, The base includes a base plate and a cylindrical shell. The base plate is fixedly connected to the lower end of the cylindrical shell, and the inner cavity of the cylindrical shell is the mounting chamber.

4. The propeller-specific assembly and adjustment auxiliary device according to claim 3, characterized in that, The cylindrical housing is provided with a threaded hole that is compatible with the stop screw. The threaded hole passes through the side wall of the cylindrical housing, and the stop screw is threadedly connected to the cylindrical housing through the threaded hole.

5. The propeller-specific assembly and adjustment auxiliary device according to claim 3, characterized in that, The adapter flange includes a rotatable connection portion and a flange connection portion fixedly connected to the upper end of the rotatable connection portion. The flange connection portion is located above the cylindrical shell, and the rotatable connection portion is rotatably connected to the inner wall of the cylindrical shell through the bearing.

6. The propeller-specific assembly and adjustment auxiliary device according to claim 5, characterized in that, The stop disc and the rotating connection part are connected and fixed by multiple connecting bolts.

7. The propeller-specific assembly and adjustment auxiliary device according to claim 5, characterized in that, The propeller support flange includes an upper flange, a lower flange, and a hollow connecting body. The upper flange and the lower flange are respectively connected and fixed to the upper and lower ends of the hollow connecting body. The lower flange is connected and fixed to the flange connecting part by multiple fixing bolts. The drive cylinder is connected and fixed to the inner ring of the lower flange.

8. The propeller-specific assembly and adjustment auxiliary device according to claim 7, characterized in that, The inner conical disk is a conical structure that is larger at the top and smaller at the bottom. The outer conical disk has a conical inner ring that is larger at the top and smaller at the bottom, and the outer conical disk has an opening that runs from top to bottom through the side wall of the outer conical disk.

9. The propeller-specific assembly and adjustment auxiliary device according to claim 8, characterized in that, A mounting platform is provided at the bottom of the outer ring of the outer conical disc, and a mounting groove adapted to the mounting platform is provided at the upper end of the upper flange. The mounting platform is fixedly installed in the mounting groove so that the upper part of the outer conical disc protrudes from the upper end face of the upper flange.

10. The propeller-specific assembly and adjustment auxiliary device according to claim 7, characterized in that, The upper flange is also provided with multiple pre-drilled bolt holes.

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