Integrated balance sheet for dynamic balance of fan blade and preparation method
Technical Field
The invention relates to the technical field of fan blades, in particular to an integrated balance sheet for dynamic balance of fan blades and a preparation method thereof.
Background
It is known that the balance blade is applied to the blade part of the wind impeller, and usually, the balance blade is used as a balance fitting to be manually inserted and fixed on the wind impeller and become a part of the wind impeller, and the main function of the balance blade in the wind impeller is to change the dynamic balance coefficient of the wind impeller, reduce noise, reduce vibration, reduce power consumption of the product, and prolong the service life.
At present, the application of the balance sheet has the following problems: 1. because the balance sheet has more specifications and extremely high appearance similarity, an operator is easy to confuse and make mistakes during assembly, and meanwhile, the assembly efficiency is extremely low. 2. The balance pieces are easy to be mutually staggered and occluded due to the characteristic of an opening structure, and are difficult to be separated after being mutually stacked, so that the balance pieces become the largest obstacle for realizing automatic assembly of the sorting balance pieces.
Disclosure of Invention
In order to solve the above problems, the present invention provides an integrated balance sheet for dynamic balance of a fan blade.
The technical scheme of the invention is realized as follows:
the invention discloses an integrated balance sheet for dynamic balance of a fan blade, which comprises a plurality of balance sheet units and an adhesive layer, wherein the balance sheet units are connected through the adhesive layer and are linearly arranged, each balance sheet unit comprises a first clamping sheet and a second clamping sheet, one ends of the first clamping sheet and the second clamping sheet are connected through an arc-shaped clamping sheet, the other ends of the first clamping sheet and the second clamping sheet are matched to form a clamping opening, connecting parts are arranged on two sides of each balance sheet unit, and the connecting parts are used for being connected with the adhesive layer.
Furthermore, the first clamping piece is close to one end of the clamping opening and far away from the second clamping piece, and a bending piece is arranged in an extending mode.
Furthermore, the first clamping piece and the second clamping piece are both arc-shaped structures, and the length of the second clamping piece is greater than that of the first clamping piece.
Furthermore, the first clamping piece, the second clamping piece and the arc-shaped clamping piece are formed by bending and integrally forming an elastic metal sheet, and the arc-shaped clamping piece is of an arc-shaped structure.
Further, the integrated balance sheet is formed by combining balance sheet units of a weight unit through an adhesive layer, and the balance sheet units are detachably separated.
Further, the adhesive layer is made of resin materials or silica gel materials.
A preparation method of an integrated balance sheet for dynamic balance of fan blades comprises the following steps:
step one, forming a balance sheet;
weighing, namely weighing and selecting the formed balance sheet according to a weight unit;
step three, bonding, wherein the bonding is to clamp and arrange the balance sheet units with the same weight in an array manner in the same direction, and filling bonding glue in the balance sheets in the clamping arrangement;
and step four, drying, namely putting the balance pieces filled with the bonding glue and clamped and arranged into an oven for drying, wherein the temperature of the oven is 180-220 ℃, the time is 20-40 minutes, and cooling to normal temperature and then taking out.
The integrated balance sheet for dynamic balance of the fan blade and the preparation method have the following beneficial technical effects:
the integrated balance sheet for the dynamic balance of the fan blade is formed by bonding the balance sheet units through the bonding layers, the balance sheet unit is a weight unit, and the balance sheet assembly of the fan blade wheel is automatically assembled through automatic equipment, so that the production cost is greatly reduced, and the assembly efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an integrated balance sheet for dynamic balancing of a fan blade according to an embodiment of the present invention;
fig. 2 is one of schematic structural diagrams of a balance sheet unit in an integrated balance sheet for dynamic balancing of wind blades according to an embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a balancing sheet unit in an integrated balancing sheet for dynamic balancing of wind blades according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 to 3, in an embodiment of the present invention, an integrated balance sheet for fan blade dynamic balance includes a plurality of balance sheet units 100 and an adhesive layer 200, the balance sheet units 100 are connected by the adhesive layer 200 and are linearly arranged, each balance sheet unit 100 includes a first clamping sheet 1 and a second clamping sheet 2, one end of each of the first clamping sheet 1 and the second clamping sheet 2 is connected by an arc-shaped clamping sheet 3, the other end of each of the first clamping sheet 1 and the second clamping sheet 2 is matched to form a clamping opening 4, two sides of the balance sheet unit 100 are connection portions 5, and the connection portions 5 are used for being connected with the adhesive layer 200.
According to a specific embodiment, the first clamping piece 1 is close to one end of the clamping opening 4 and far away from the second clamping piece 2, a bending piece 6 is arranged in an extending mode, the bending piece 6 is far away from the second clamping piece 2, and the second clamping piece 2 is arranged in an extending mode, so that the clamping opening 4 can be more conveniently connected with a wind blade of a wind impeller in an inserting mode.
According to a specific embodiment, the first clamping piece 1 and the second clamping piece 2 are both arc-shaped structures, wherein preferably, the radius of the arc part of the first clamping piece 1 is 8.45mm, the radius of the arc part of the second clamping piece 2 is 9.30mm, and the length of the second clamping piece 2 is greater than that of the first clamping piece 1.
According to an embodiment, the first clamping piece 1, the second clamping piece 2 and the arc-shaped clamping piece 3 are formed by bending and integrally forming an elastic metal sheet, and the arc-shaped clamping piece 3 is of an arc-shaped structure.
According to an embodiment, the integrated balance sheet is composed of a balance sheet unit 100 of a weight unit by an adhesive layer 200, and the balance sheet units 100 are detachably separated from each other.
According to a specific embodiment, the adhesive layer 200 is a resin material, or a silicone material.
A preparation method of an integrated balance sheet for dynamic balance of fan blades comprises the following steps:
step one, forming a balance sheet;
weighing, namely weighing and selecting the formed balance sheet according to a weight unit;
step three, bonding, wherein the bonding is to clamp and arrange the balance sheet units with the same weight in an array manner in the same direction, and filling bonding glue in the balance sheets in the clamping arrangement;
and step four, drying, namely putting the balance pieces filled with the bonding glue and arranged in a clamping manner into a drying oven for drying, wherein the temperature of the drying oven is 200 ℃, the time is 30 minutes, and taking out the balance pieces after cooling to the normal temperature.
Further explanation is as follows: according to the integrated balance sheet for the dynamic balance of the fan blade, the balance sheet units can be the same in weight, or can be formed by bonding and integrating a plurality of different weights, one balance sheet unit is inserted into the fan blade of the fan blade wheel through automatic assembly equipment, or a plurality of balance sheet units are inserted into the fan blade of the fan blade wheel, and the balance sheet unit is a weight unit, and N balance sheet units can be selected as balance sheets to automatically select the fan blade according to the specification requirements of the balance sheets, so that the automatic assembly of the balance sheets is realized, and the assembly efficiency of the balance sheets is greatly improved.
The integrated balance sheet for the dynamic balance of the fan blade has the following beneficial technical effects:
the integrated balance sheet for the dynamic balance of the fan blade is formed by bonding the balance sheet units through the bonding layers, the balance sheet unit is a weight unit, and the balance sheet assembly of the fan blade wheel is automatically assembled through automatic equipment, so that the production cost is greatly reduced, and the assembly efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements, etc. made in whole or in part within the spirit and scope of the present invention are intended to be included therein.