Novel fixed-wing unmanned aerial vehicle propeller blade static balance tool
By using a new type of static balancing fixture for fixed-wing UAV propeller blades, the efficient and precise balancing of the blades is achieved through a balancing bracket and a balancing indicator dial. This solves the problems of low efficiency and large precision error in existing technologies, and improves the stability and safety of UAVs.
Patent Information
- Application Number
- CN202423219520.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing technologies, the static balance trimming efficiency of fixed-wing UAV propeller blades is low and the accuracy error is large, which affects the flight stability and safety of UAVs.
A novel static balancing fixture for fixed-wing UAV propeller blades is adopted, including a balancing bracket, a rotating balancing shaft, and a balancing indicator dial. Precise balancing of the propeller blades is achieved through a limiting structure and lever principle.
It improved the production efficiency and precision of the propellers, reduced manufacturing costs, and enhanced the stability and safety of the drones.
Smart Images
Figure CN223525931U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of aviation manufacturing technology, more particularly to a novel fixed wing unmanned aerial vehicle propeller blade static balance frock, especially suitable for fixed wing unmanned aerial vehicle propeller static balance trim. BACKGROUND
[0002] Fixed wing unmanned aerial vehicle is currently widely used, propeller is the main core component of fixed wing unmanned aerial vehicle, and propeller blade is the main component of propeller, and the weight deviation of each blade during manufacturing is required to be high relative to the standard design, and the weight manufacturing precision of the blade seriously affects the stability and safety of the unmanned aerial vehicle flight, and the static balance trim of the fixed wing unmanned aerial vehicle propeller is required. At present, during the manufacturing process of propeller blade, the weight static balance trim frock of the blade generally has the problems of low trim efficiency and large precision error. CONTENT OF THE UTILITY MODEL
[0003] To solve the above technical problems, the utility model provides a novel fixed wing unmanned aerial vehicle propeller blade static balance frock.
[0004] The utility model discloses a novel fixed wing unmanned aerial vehicle propeller blade static balance frock, including the balance support, the balance axle that rotates to set up in the balance support, the balance axle includes the balance axle body, the balance pin, the balance axle pointer, and the balance axle body is the rotation axis body of the weight even distribution and rotates to set up in the balance support, and the rotation axis of the balance axle body is parallel with the horizontal plane, and the balance axle body is about the rotation axis of its symmetry and sets up two balance pins respectively for installing standard blade, balance trim blade, sets up the limiting structure on the balance pin for making standard blade, balance trim blade position symmetry, still sets up the balance axle pointer on the balance axle body, and the balance axle pointer is located on the symmetry plane of two balance pins, and sets up the balance indication scale disc parallel with the swing plane of the balance axle pointer on the balance support, and the zero scale is vertically provided on the balance indication scale disc, and the positive and negative angle scale is symmetrically distributed on both sides of the zero scale, and under the balance state, the balance axle pointer is parallel with the zero scale.
[0005] Further, the balance axle body is a left-right symmetrical stepped shaft, including a first stepped shaft, two second stepped shafts symmetrically arranged on two end faces of the first stepped shaft, and two third stepped shafts symmetrically arranged on end faces of the second stepped shaft.
[0006] Further, the balance pin is perpendicular to the rotation axis of the balance axle body.
[0007] Further, an annular boss can be arranged on the outer wall of the balance pin.
[0008] Further, the balance axle pointer is installed on one side of the balance axle body and perpendicular to the balance pin body.
[0009] Further, the balance support comprises a support body, the support body comprises two inverted T-shaped supports, and the two inverted T-shaped supports are connected as a whole through a connecting rod.
[0010] Further, two rotating bearings are respectively arranged on the two sides of the upper end of the balance support, the bearing holes of the two rotating bearings are coaxial, and the axes are parallel to the horizontal plane, the balance shaft body is respectively arranged at the two rotating bearings, the axis of the balance shaft body is coaxial with the axis of the bearing hole, and the two balance pins 2 are symmetrical relative to the axis of the bearing hole.
[0011] Further, the axes of the two balance pins and the axis of the balance shaft body are coplanar and parallel to the horizontal plane in the balance state, and the balance shaft pointer is vertically downward in the balance state.
[0012] Compared with the prior art, the balance support of the utility model has the advantages that:
[0013] The utility model solves the problems of low efficiency, large workload and large error of paddle static balance matching, reduces the manufacturing cost of the paddle, improves the working efficiency, improves the matching precision and improves the product stability.
[0014] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are taken, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a use effect diagram of the utility model a novel fixed wing unmanned aerial vehicle propeller paddle static balance tool embodiment;
[0016] Figure 2 It is a structure schematic diagram of the utility model a novel fixed wing unmanned aerial vehicle propeller paddle static balance tool embodiment;
[0017] Figure 3 It is a structure schematic diagram of the utility model a novel fixed wing unmanned aerial vehicle propeller paddle static balance tool embodiment; Figure 2 It is a structure schematic diagram of the utility model a novel fixed wing unmanned aerial vehicle propeller paddle static balance tool embodiment;
[0018] Figure 4 It is a structure schematic diagram of the utility model a novel fixed wing unmanned aerial vehicle propeller paddle static balance tool embodiment; Figure 2 It is a structure schematic diagram of the utility model a novel fixed wing unmanned aerial vehicle propeller paddle static balance tool embodiment.
[0019] REFERENCE NUMERALS
[0020] I-blade static balancing tool, II-standard blade, III-balanced blade, IV-balance bracket, V-balance shaft, 1-balance shaft body, 2-balance pin, 3-balance shaft pointer, 4-bracket body, 5-balance indicating scale, 6-rotary bearing. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the utility model embodiment will be described in more detail below in combination with the drawings in the utility model embodiment. In the drawings, the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The embodiments described below by reference to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. The embodiments of the utility model will be described in detail below in combination with the drawings.
[0022] In the prior art, the propeller is the main core component of the fixed-wing unmanned aerial vehicle, and the propeller blade is the main component of the propeller. The weight deviation of each blade during manufacturing is required to be high relative to the standard design. The weight manufacturing precision of the blade seriously affects the stability and safety of the unmanned aerial vehicle in flight. During the manufacturing process of the blade, the blade needs to be statically balanced. In order to improve the static balancing efficiency and balancing precision of the blade, the utility model provides a special balancing tool. The application of the special balancing tool significantly improves the production efficiency and weight error precision of the blade.
[0023] As shown in Figure 2 The embodiment of the utility model discloses a novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool, hereinafter referred to as blade static balancing tool I. The blade static balancing tool I comprises a balance bracket IV and a balance shaft V.
[0024] As shown in Figure 3 The balance shaft V comprises a balance shaft body 1, two balance pins 2 symmetrically arranged on the balance shaft body 1 and provided with a limiting structure, and a balance shaft pointer 3 arranged on the balance shaft body 1.
[0025] The balance shaft body 1 is a rotary shaft body with uniform weight distribution. In the embodiment, the balance shaft body 1 is a left-right symmetrical stepped shaft, comprising a first-stage stepped shaft, two second-stage stepped shafts symmetrically arranged on two end faces of the first-stage stepped shaft, and two third-stage stepped shafts symmetrically arranged on end faces of the second-stage stepped shaft. In other embodiments, the balance shaft body 1 can also have other shapes, as long as it is a rotary shaft body with uniform weight.
[0026] The balance pin 2 is symmetrical about the axis of the balance shaft body 1 and is installed on the circumferential surface of the balance shaft body 1. In this embodiment, the balance pin 2 is horizontally symmetrical on the balance shaft body 1, that is, the two balance pins 2 are on the same plane and are located in the middle position of the primary stepped shaft of the balance shaft body 1, and the balance pin 2 is perpendicular to the axis of the balance shaft body 1. In other embodiments, the balance pin 2 can not be on the same plane and can not be perpendicular to the axis of the balance shaft body 1, as long as the two balance pins 2 are symmetrical about the axis of the balance shaft body 1.
[0027] The balance pin 2 is provided with a limiting structure, and after the paddle is inserted and installed on the balance pin 2, the limiting structure in the insertion hole on the paddle matches the limiting structure on the balance pin 2, so that the two paddles can be symmetrically arranged on the balance pin 2. In this embodiment, an annular boss can be provided on the outer wall of the balance pin 2, and a stepped hole can be provided on the paddle, and the step in the stepped hole matches the annular boss, or the end face of the root of the paddle is in abutting engagement with the annular boss, so as to determine the position of the paddle.
[0028] The balance shaft pointer 3 is installed on one side of the balance shaft body 1 and is perpendicular to the balance pin body 1. In this embodiment, the balance shaft pointer 3 is installed on the tertiary stepped shaft of the balance shaft body 1. The balance shaft pointer 3 is located on the symmetry plane of the balance pin 2, and after the balance shaft V is installed, the overall weight of the balance shaft V is evenly distributed about the symmetry plane of the balance pin 2, and the symmetry plane of the balance pin 2 is located on the balance shaft axis.
[0029] As shown in Figure 4 The balance support IV includes a support body 4, two rotary bearings 6 and a balance indication scale disc 5.
[0030] The support body 4 includes two inverted T-shaped supports, and the two inverted T-shaped supports are connected as a whole by a connecting rod. In other embodiments, the support body 4 can also have other shapes, which are not limited.
[0031] The two rotary bearings 6 are installed on the two sides of the upper end of the support body 4, and the bearing hole axes of the two rotary bearings 6 coincide and are parallel to the support plane (i.e. the horizontal plane) of the lower end of the support body 4. In this embodiment, the two rotary bearings 6 are located at the top ends of the two inverted T-shaped supports.
[0032] The two ends of the balance shaft body 1 are respectively installed on the two rotary bearings 6 and are in interference fit with the inner rings of the rotary bearings 6, so that the axis of the balance shaft body 1 coincides with the axis of the bearing hole, and then the two balance pins 2 are symmetrical relative to the axis of the bearing hole. In this embodiment, the axes of the two balance pins 2 and the axis of the balance shaft body 1 are coplanar and parallel to the horizontal plane in the balanced state, and at this time, the balance shaft pointer 3 is vertically downward.
[0033] The balance indication dial 5 is installed on the upper end of the support body 4 close to one of the rotating bearings 6, the balance indication dial 5 is provided with scales, after the balance shaft V is installed on the balance support IV, the swing plane of the balance shaft pointer 3 is parallel to and close to the balance indication dial 5, the zero scale of the balance indication dial 5 is vertically arranged, and the positive and negative angle scales are symmetrically and uniformly distributed on the left and right sides of the zero scale. In the embodiment, the balance indication dial 5 is located on the inner side of one of the inverted T-shaped supports.
[0034] After the balance shaft V is installed on the balance support IV, the balance shaft pointer 3 points at the zero scale position of the balance indication dial 5, the balance shaft pointer 3 is parallel to the zero scale, and the balance shaft V can freely rotate around the balance shaft axis after being installed, when the balance shaft V is moved by a certain angle, the balance shaft V can automatically return to the zero scale pointer indication position under its own gravity.
[0035] As shown in Figure 1 The balancing blade III (the blade in a processing state) is installed on one of the balance pins 2 and the end thereof is matched with the limiting structure of the balance pin 2, the other balance pin 2 is installed with the standard blade II and the end thereof is matched with the limiting structure of the balance pin 2, then balancing is performed according to the lever principle, according to the direction and angle size of the balance shaft pointer 3 deviating from the zero scale line of the balance indication dial 5, the weight difference of the balancing blade III relative to the standard blade II is determined and the size of the weight adjustment value to be performed is determined, then the weight of the balancing blade III is adjusted until the balance shaft pointer 3 stays at the zero degree line position of the balance indication dial 5, and the balancing is completed.
[0036] The blade balanced by the same blade static balancing tool I and the same standard blade II is assembled into a propeller, and the propeller can run stably, the tool is convenient and simple to operate, the operation efficiency is high, and the processing manufacturing cost can be reduced.
[0037] In other embodiments, the rotating bearing 6 can be removed, the balance shaft and the balance support are connected through the shaft hole, and the smoothness of the shaft hole can be reduced to reduce the rotation resistance.
[0038] 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 preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones without departing from the spirit of the technical solutions of the present application, and all of them should be covered in the technical solution range of the present application.
Claims
1. A novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool, comprising a balancing bracket and a balancing shaft rotatably arranged in the balancing bracket, characterized in that: The balance shaft comprises a balance shaft body, balance pins and a balance shaft pointer, the balance shaft body is a rotary shaft body with uniform weight distribution and is arranged in rotation on a balance support, the rotation axis of the balance shaft body is parallel to the horizontal plane, the balance shaft body is symmetrically arranged about its rotation axis with two balance pins respectively used for mounting standard paddles and balancing paddles, the balance pins are provided with limiting structures for making the positions of the standard paddles and the balancing paddles symmetrical, the balance shaft body is further provided with the balance shaft pointer, the balance shaft pointer is located on the symmetry plane of the two balance pins, the balance support is provided with a balance indication scale disc parallel to the swing plane of the balance shaft pointer, the balance indication scale disc is vertically provided with a zero scale, positive and negative angle scales are symmetrically distributed on both sides of the zero scale, and in the balanced state, the balance shaft pointer is parallel to the zero scale.
2. The novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool according to claim 1, characterized in that: The balance shaft body is a left-right symmetrical stepped shaft, comprising a first stepped shaft, two second stepped shafts symmetrically arranged on the two end faces of the first stepped shaft, and two third stepped shafts symmetrically arranged on the end faces of the second stepped shafts.
3. The novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool according to claim 1, characterized in that: The balance pins are perpendicular to the rotation axis of the balance shaft body.
4. The novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool according to claim 1, characterized in that: An annular boss can be arranged on the outer wall of the balance pin.
5. The novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool according to claim 1, characterized in that: The balance shaft pointer is mounted on one side of the balance shaft body and perpendicular to the balance pin body.
6. The novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool according to claim 1, characterized in that: The balance support comprises a support body, the support body comprises two inverted T-shaped supports, and the two inverted T-shaped supports are connected as a whole through connecting rods.
7. The novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool according to claim 1, characterized in that: Two rotary bearings are respectively mounted on the two sides of the upper end of the balance support, the bearing hole axes of the two rotary bearings coincide and are parallel to the horizontal plane, the two ends of the balance shaft body are respectively mounted on the two rotary bearings, the axis of the balance shaft body coincides with the axis of the bearing hole, and the two balance pins (2) are symmetrically relative to the axis of the bearing hole.
8. The novel fixed-wing unmanned aerial vehicle propeller blade static balancing tool according to claim 1, characterized in that: The axes of the two balance pins and the axis of the balance shaft body are coplanar and parallel to the horizontal plane in the balanced state, and in the balanced state, the balance shaft pointer is vertically downward.