Multipurpose assembly tool special for paddle assembly

By designing a special assembly tooling for multi-purpose propeller components, the problem of low efficiency in applying sealant and grease to UAV propeller blade components was solved, achieving uniform application and convenient disassembly, protecting the propeller blades and improving maintenance efficiency.

CN223589261UActive Publication Date: 2025-11-25CHINA ACAD OF AEROSPACE AERODYNAMICS
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Patent Information

Application Number
CN202423167453.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-25
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

The existing drone propeller blade assembly is inefficient and uneven when applying sealant and grease, slow when disassembling bearings and screws, easily damages the blades, and the failure to replace bearings in a timely manner affects the propeller pitch.

Method used

Design a multi-purpose blade assembly assembly tooling, including a base plate, fastening components and support components. The support components support the blades and the fastening components fix them in place. Combined with a blade conformal rotating block made of polyetheretherketone material, stable rotation and uniform coating of the blades are achieved, simplifying the disassembly and maintenance process.

Benefits of technology

It improves the efficiency and uniformity of applying sealant and grease, simplifies the disassembly process of bearings and screws, protects the blades from damage, and improves maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of assembly and maintenance of propeller blades of unmanned aerial vehicles, in particular to a multipurpose assembly tool special for a blade assembly. The multipurpose assembly tool special for the paddle assembly comprises a bottom plate, a fastening assembly and a supporting assembly. The fastening assembly is installed on one side of the bottom plate, and the supporting assembly is installed on the other side of the bottom plate. The fastening assembly comprises a left vertical plate upper portion and a left vertical plate lower portion, and one end of the left vertical plate upper portion is rotationally connected with one end of the left vertical plate lower portion. By installing the fastening assembly on one side of the bottom plate and installing the supporting assembly on the other side of the bottom plate, when the paddle assembly needs to be maintained, one side of the paddle assembly is placed on the supporting assembly to support the paddle assembly, and the other side of the paddle assembly is placed in the fastening assembly, so that the paddle assembly does not rotate any more; the paddle assembly is convenient to use, the bearing is convenient to disassemble and replace, the paddle body cannot be damaged in the using process, the lubricating grease and sealant smearing efficiency is high, and smearing is uniform.
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Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned aerial vehicle propeller blade assembly and maintenance technical field, especially a kind of multipurpose blade assembly special assembly tool. BACKGROUND

[0002] Unmanned aerial vehicle propeller blade component, its composition is generally composed of blade body, two major parts of blade root assembly.Blade body is connected with blade root assembly, and blade root assembly is connected with hub to form complete propeller blade, and hub rotation drives blade rotation, to provide flight power for unmanned aerial vehicle.

[0003] The way of coating sealant for blade assembly is to hold blade assembly with one hand and hold sealant with the other hand, which has the disadvantages of slow coating efficiency and uneven surface, because blade assembly is not a regular rotating body, and the rotation is not uniform, which causes uneven coating of sealant and low efficiency.

[0004] The blade assembly (bearings, bearing pieces and other parts) needs to be coated with lubricating grease, and the bearing and parts need to be coated with lubricating grease, which needs to be held by hand to smear, which is slow and the blade profile is curved, which is easy to hold and cause paint loss and collision, which seriously damages the blade body and causes it to be scrapped.

[0005] The bearing used in blade assembly has a service life and needs to be replaced in time, otherwise it will affect the pitch of propeller.

[0006] When the blade is repaired, the bearing at the blade root position is disassembled by holding the blade body, and the screw on the blade root assembly is disassembled by using wrench, which has the disadvantages of slow disassembly and easy to slip. INVENTION CONTENTS

[0007] The utility model aims at providing a multipurpose blade assembly special assembly tool, which can be used conveniently, disassembled and replaced conveniently, and will not damage the blade body during use, and the lubricating grease and sealant can be coated quickly and evenly.

[0008] The utility model provides a multipurpose blade assembly special assembly tool, which comprises a bottom plate, a fastening assembly and a supporting assembly.

[0009] The fastening assembly is installed on one side of the bottom plate, and the supporting assembly is installed on the other side of the bottom plate.

[0010] The fastening assembly comprises a left vertical plate upper part and a left vertical plate lower part, and one end of the left vertical plate upper part is rotationally connected with one end of the left vertical plate lower part.

[0011] Preferably, the left vertical plate lower part is installed on one side of the bottom plate through a first cylindrical pin.

[0012] One end of the left vertical plate upper part and one end of the left vertical plate lower part are connected through a pin shaft.

[0013] Preferably, a first groove is formed on the left vertical plate lower part, a second groove is formed on the left vertical plate upper part, and the first groove and the second groove are oppositely arranged.

[0014] Further preferably, a second bearing and a third cylindrical pin are further arranged in the first groove.

[0015] Further preferably, the fastening assembly further comprises a fastening screw, and the fastening screw connects the left vertical plate upper part and the left vertical plate lower part.

[0016] Preferably, the support assembly comprises a right vertical plate.

[0017] The right vertical plate is installed on one side of the bottom plate through the first cylindrical pin.

[0018] A third groove is formed on the right vertical plate.

[0019] Further preferably, the support assembly further comprises a paddle conforming rotary block.

[0020] The paddle conforming rotary block is installed on the third groove on the right vertical plate.

[0021] Further preferably, the third groove and the paddle conforming rotary block are connected through a first bearing and a second cylindrical pin.

[0022] Further preferably, a limiting structure is further arranged on the first groove.

[0023] Further preferably, the material of the paddle conforming rotary block is polyether ether ketone.

[0024] Beneficial effects:

[0025] The technical scheme of the utility model discloses a fastening assembly is installed on one side of the bottom plate, and a support assembly is installed on the other side of the bottom plate, when the paddle assembly needs to be maintained, one side of the paddle assembly is placed on the support assembly to support the paddle assembly, the other side is placed in the fastening assembly, the paddle assembly does not rotate any more, and the screw and bearing on the paddle root part in the paddle assembly can be disassembled and maintained.

[0026] When the paddle assembly needs to be coated with sealant and lubricating grease, the left vertical plate upper part is rotated to one side of the left vertical plate lower part, then the paddle assembly is placed on the left vertical plate lower part and the right vertical plate, the paddle body is slowly rotated by holding it with hands, and the other hand holds a sealant or a brush with lubricating grease to coat on the paddle assembly, so that the operation is simple, the coating efficiency is high and the coating is uniform. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art of the present application, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0029] Figure 2 It is a schematic diagram of the use state of the present application.

[0030] Figure 3 It is a schematic diagram of the connection between the upper part and the lower part of the left stand plate in the present application.

[0031] Figure 4 It is a schematic diagram of the connection between the right stand plate and the paddle profiled rotating block in the present application.

[0032] Figure 5 It is a bottom view of the use state of the present application.

[0033] Explanation of reference signs:

[0034] 1: right stand plate; 2: bottom plate; 3: lower part of left stand plate; 4: upper part of left stand plate; 5: paddle profiled rotating block; 6: first cylindrical pin; 7: first bearing; 8: second cylindrical pin; 9: fastening screw; 10: second bearing; 11: third cylindrical pin; 12: pin shaft. DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be described below in conjunction with embodiments. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] Furthermore, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the specified technical features. Thus, features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] As shown in Figures 1 to 5 The utility model provides a multipurpose paddle assembly special assembly tool, it includes: bottom plate 2, fastening assembly and support assembly, fastening assembly installs at one side of bottom plate 2, support assembly installs at the other side of bottom plate 2. Fastening assembly includes left vertical plate upper part 4 and left vertical plate lower part 3, one end of left vertical plate upper part 4 one end of left vertical plate lower part 3 rotationally connected.

[0039] The utility model discloses technical scheme through installing fastening assembly at one side of bottom plate 2, installing support assembly at the other side of bottom plate 2, when needing to coat the lubricating grease to paddle assembly, the one side of paddle assembly is placed on support assembly, gives paddle assembly support, the other side is placed in fastening assembly, makes paddle assembly no longer rotate, can dismantle the screw and bearing on the paddle root part in paddle assembly and carries out maintenance. The multipurpose paddle assembly special assembly tool can use conveniently, dismantles and changes bearing conveniently, and the use process will not damage paddle body, and the efficiency of smearing lubricating grease and sealant is fast and smears uniformly.

[0040] Left vertical plate lower part 3 is installed at one side of bottom plate 2 through first cylindrical pin 6, specifically, in the embodiment, one end of left vertical plate upper part 4 one end of left vertical plate lower part 3 is connected through pin shaft 12, left vertical plate upper part 4 can rotate basically 180 degrees.

[0041] First recess is set up on left vertical plate lower part 3, second recess is set up on left vertical plate upper part 4, and first recess and second recess are oppositely arranged.

[0042] Second bearing 10 and third cylindrical pin 11 are further arranged in first recess. Specifically, as shown in Figure 3 In the embodiment, second bearing 10 and third cylindrical pin 11 are arranged with three groups, which are installed at both ends and the center of first recess, so that the rotation of paddle assembly is smoother.

[0043] The fastening assembly further comprises a fastening screw 9 connecting the left vertical plate upper portion 4 and the left vertical plate lower portion 3.

[0044] The support assembly comprises a right vertical plate 1 installed on one side of the bottom plate 2 through a first cylindrical pin 6, and the right vertical plate 1 is provided with a third groove.

[0045] The support assembly further comprises a paddle-shaped rotating block 5 installed on the third groove of the right vertical plate 1. The material of the paddle-shaped rotating block 5 is polyether ether ketone. Specifically, in the embodiment, all the components in contact with the paddle assembly are made of PEEK (polyether ether ketone) material, which will not cause any damage to the paddle assembly. In use, the paddle is sleeved into the paddle-shaped rotating block 5, at this time, the rotation of the paddle drives the paddle-shaped rotating block 5 to rotate. In the prior art, since the paddle assembly is not a regular rotating body, the hand rotation is not uniform, which causes uneven sealing glue coating and low efficiency. By sleeving the paddle into the paddle-shaped rotating block 5, the paddle and the paddle-shaped rotating block 5 together form a relatively regular rotating body, which is closer to uniform speed when the hand rotates, and can make the sealing glue coating more uniform and efficient.

[0046] The third groove and the paddle-shaped rotating block 5 are connected through a first bearing 7 and a second cylindrical pin 8. Specifically, as shown in Figure 4 In the embodiment, three groups of first bearings 7 and second cylindrical pins 8 are installed, respectively at both ends and the center of the third groove, so that the paddle-shaped rotating block 5 rotates more smoothly.

[0047] The first groove is further provided with a limiting structure, which can limit the front and back of the paddle assembly to avoid sliding out when the paddle assembly rotates. The third groove is also provided with a limiting structure, as shown in Figure 4 which can avoid the paddle-shaped rotating block 5 from sliding out when rotating.

[0048] Use process of use 1:

[0049] When coating the sealing glue and the lubricating grease on the paddle assembly, the left vertical plate upper portion 4 is not needed. At this time, the left vertical plate upper portion 4 is rotated to one side of the left vertical plate lower portion 3 through the rotating shaft. Then the paddle assembly is placed on the left vertical plate lower portion 3 and the right vertical plate 1, and the paddle body is slowly rotated by hand, and the other hand holds a sealing glue or a brush with lubricating grease to coat on the paddle assembly. The operation is simple, the coating efficiency is high and the coating is uniform.

[0050] Use process of use 2:

[0051] When the paddle assembly is repaired, the left vertical plate upper part 4 is needed. At this time, the left vertical plate upper part 4 is rotated to the upper side of the left vertical plate lower part 3 through the rotating shaft, and the left vertical plate lower part 3 and the left vertical plate upper part 4 clamp the paddle assembly through the fastening screw 9. At this time, the paddle assembly is located in the first groove and the second groove, and is in close contact with the first groove and the second groove. The paddle assembly does not rotate any more, and the screw and the bearing of the paddle root part in the paddle assembly can be disassembled for repair.

[0052] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multipurpose paddle assembly dedicated assembly tool characterized by, Include: The bottom plate, fastening assembly and support assembly; The fastening assembly is installed on one side of the bottom plate, and the support assembly is installed on the other side of the bottom plate; The fastening assembly includes left vertical plate upper part and left vertical plate lower part, one end of the left vertical plate upper part is rotatably connected with one end of the left vertical plate lower part.

2. The multipurpose paddle assembly dedicated assembly tool of claim 1, wherein, The left vertical plate lower part is installed on one side of the bottom plate through the first cylindrical pin; One end of the left vertical plate upper part is connected with one end of the left vertical plate lower part through the pin shaft.

3. The multipurpose paddle assembly dedicated assembly tool of claim 1, wherein, The left vertical plate lower part is provided with a first groove, and the left vertical plate upper part is provided with a second groove, and the first groove and the second groove are oppositely arranged.

4. The multipurpose paddle assembly dedicated assembly tool of claim 3, wherein, The first groove is further provided with a second bearing and a third cylindrical pin.

5. The multipurpose paddle assembly dedicated assembly tool of claim 2, wherein, The fastening assembly further includes a fastening screw, and the fastening screw connects the left vertical plate upper part and the left vertical plate lower part.

6. The multipurpose paddle assembly dedicated assembly tool of claim 2, wherein, The support assembly includes a right vertical plate; The right vertical plate is installed on one side of the bottom plate through the first cylindrical pin; The right vertical plate is provided with a third groove.

7. The multipurpose paddle assembly dedicated assembly tool of claim 6, wherein, The support assembly further includes a paddle conformal rotating block; The paddle conformal rotating block is installed on the third groove of the right vertical plate.

8. The multipurpose paddle assembly dedicated assembly tool of claim 7, wherein, The third groove and the paddle conformal rotating block are connected through the first bearing and the second cylindrical pin.

9. The multipurpose paddle assembly dedicated assembly tool of claim 3, wherein, The first groove is further provided with a limiting structure.

10. The multipurpose paddle assembly dedicated assembly tool of claim 7, wherein, The material of the paddle conformal rotating block is polyether ether ketone.