CN218953642U - Low-clearance blade mounting structure - Google Patents

Low-clearance blade mounting structure Download PDF

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Publication number
CN218953642U
CN218953642U CN202223036509.0U CN202223036509U CN218953642U CN 218953642 U CN218953642 U CN 218953642U CN 202223036509 U CN202223036509 U CN 202223036509U CN 218953642 U CN218953642 U CN 218953642U
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China
Prior art keywords
blade
installation
shaft
rotor
mounting
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CN202223036509.0U
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Chinese (zh)
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姜宗钢
马天博
高小强
张明林
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Jiangsu Huahong Electromechanical Equipment Technology Co ltd
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Jiangsu Huahong Electromechanical Equipment Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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Abstract

The utility model discloses a low-clearance blade mounting structure, which relates to the technical field of axial flow fans and is suitable for the axial flow fans. According to the utility model, the blade fixing sleeve shaft and the low-noise blade form a fixed blade whole, the installation baffle plate and the fastening pin are mutually matched to enable the low-noise blade mechanism to be fixedly installed at one end of the installation shaft, the other end of the installation shaft is fixed with the rotor shaft through the rotor fixing bolt, the blade formed by the blade fixing sleeve shaft and the low-noise blade is installed on the rotor shaft and can be driven by the rotor shaft to rotate, the installation is simple, and the installation and the fastening between all components are realized through the cross clamping joint, so that the low-noise blade mechanism is not easy to loosen.

Description

Low-clearance blade mounting structure
Technical Field
The utility model relates to the technical field of axial flow fans, in particular to a low-clearance blade mounting structure.
Background
The outer rotor axial flow fan has the advantages of attractive appearance and small installation volume, is widely applied to air conditioners and other various electrical equipment for ventilation and heat dissipation, and is suitable for various fan products with various different performance indexes, fan manufacturers realize different performance indexes of the fan by setting blade installation gaps, and the common blade installation structures mainly comprise three types: firstly, directly welding a blade on a motor rotor shell; secondly, the blade and the rotor shell are integrally die-cast; thirdly, a fixed blade mounting device is arranged on the motor rotor shell, the first two schemes have specific requirements on materials and dies of the blades, and the production cost is high, so that the utility model provides a low-clearance blade mounting structure.
In the prior art, a Chinese patent document with publication number of CN102168693A and publication date of 2011, month 08 and 31 is provided to solve the above technical problems, and the technical scheme disclosed in the patent document is as follows: an outer rotor axial flow fan blade mounting structure, comprising: the rotor is characterized in that a flange is fixedly arranged on a shell of the rotor, a hub disc is fixedly arranged on the flange, the hub disc is formed by combining an upper hub disc and a lower hub disc, an arc-shaped upper groove is formed in the upper hub disc, an arc-shaped lower groove is formed in the lower hub disc, a blade handle of a blade is arranged in the upper groove and the lower groove after the combination, at least one positioning groove is further formed in the inner walls of the upper groove and the lower groove, at least one blade positioning groove is formed in the blade handle of the blade, and a positioning pin is arranged in at least one pair of positioning groove and blade positioning groove after the combination. According to the utility model, the blade angle is conveniently adjusted, so that the purpose that the same type of axial flow fan can achieve different fan performance indexes is achieved.
In order to solve the problem that the angle of blade installation can not be adjusted, the prior art adopts blade, petiole and convex recess mode of mutually supporting to handle, but still can appear being in the condition of joint separation between blade and axis of rotation, and then lead to the axis of rotation to rotate because the blade appears skew and the too big problem of noise under to the circulation of air.
Disclosure of Invention
The present utility model is directed to a low clearance blade mounting structure to solve the above-mentioned problems.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a low clearance's blade mounting structure, is applicable to axial fan, includes blade mounting mechanism main part, blade mounting mechanism main part is including the rotor shaft, the one end of rotor shaft is provided with blade mounting mechanism, blade mounting mechanism's surface is provided with low noise blade mechanism, blade mounting mechanism is including installation axle, fastening pin and installation separation blade, the internal surface of installation axle and the one end surface joint of rotor shaft, low noise blade mechanism is including fixed sleeve of blade and low noise blade, the internal surface of fixed sleeve of blade is provided with the draw-in groove with the fastening pin looks adaptation.
The technical scheme of the utility model is further improved as follows: the outer surface of installation axle is provided with rotor fixing bolt, rotor fixing bolt's one end is provided with the nut with rotor fixing bolt looks adaptation, the outside surface of installation axle, rotor axle all is provided with the installation screw hole with rotor fixing bolt looks adaptation, rotor fixing bolt's surface and the outside surface threaded connection of installation axle, rotor axle.
By adopting the technical scheme, the mounting shaft is clamped with one end of the rotor shaft, the rotor fixing bolt is used for fixing, so that the mounting shaft is fixedly arranged on the rotor shaft, and the rotor shaft is convenient to drive the blade fixing sleeve shaft to rotate.
The technical scheme of the utility model is further improved as follows: one end of the fastening pin is fixedly connected with one end side surface of the mounting shaft, the outer surface of the fastening pin is clamped with the inner surface of the blade fixing sleeve shaft, and the front end of the blade fixing sleeve shaft is provided with a mounting groove matched with the mounting baffle.
By adopting the technical scheme, the fastening pin is inserted into the inner surface of the blade fixing sleeve shaft for clamping, and the mounting baffle plate is clamped and mounted with the front end surface of the blade fixing sleeve shaft.
The technical scheme of the utility model is further improved as follows: the outer surface of installation separation blade and the front end surface joint of the fixed sleeve of blade, the middle part of installation separation blade is provided with main fixing bolt, the middle part inner wall of the fixed sleeve of blade, fastening pin all is provided with the mounting hole with main fixing bolt looks adaptation, the surface and the middle part inner wall threaded connection of the fixed sleeve of installation separation blade, fastening pin of main fixing bolt.
By adopting the technical scheme, the main fixing bolt, the auxiliary fixing bolt are respectively used for fixing the main fixing bolt, the blade fixing sleeve shaft and the fastening pin, and the fastening pin and the mounting baffle are mutually matched to play a role in mounting and fixing the low-noise blade mechanism, so that the blade fixing sleeve shaft is mounted at one end of the mounting shaft.
The technical scheme of the utility model is further improved as follows: the blade fixing sleeve is characterized in that auxiliary fixing bolts are arranged around the mounting baffle plate, mounting holes matched with the auxiliary fixing bolts are formed around the side surfaces of the blade fixing sleeve and the fastening pins, and the outer surfaces of the auxiliary fixing bolts are in threaded connection with the side walls of the mounting baffle plate, the blade fixing sleeve and the fastening pins.
By adopting the technical scheme, the main fixing bolt and the auxiliary fixing bolt are used for fixing the installation baffle, the blade fixing sleeve shaft and the fastening pin into a whole, so that the blade fixing sleeve shaft is not easy to loosen.
The technical scheme of the utility model is further improved as follows: the low noise blade is including porous light blade skeleton of making an uproar that falls, inhale sound joint sealing piece and blade shrouding, the one end of the light blade skeleton of making an uproar that falls and the fixed external surface fixed connection of sleeve axle of blade, the blade shrouding sets up the both sides at the light blade skeleton of making an uproar that makes an uproar falls in the porous, the side surface of blade shrouding and the inboard fixed surface of the light blade skeleton of making an uproar that makes an uproar fall of porous are connected.
By adopting the technical scheme, the porous noise-reduction light blade framework and the blade sealing plate utilize the porous structure to absorb sound to form the low-noise blade, and the porous noise-reduction light blade framework and the blade fixing sleeve shaft are fixed into a whole, so that the position of the low-noise blade is in a stable and fixed state.
The technical scheme of the utility model is further improved as follows: the one end of blade shrouding, porous light blade skeleton of making an uproar that falls is provided with the installation joint groove with inhale the sound joint sealing piece looks adaptation, inhale the outer surface of sound joint sealing piece and blade shrouding, the one end inner wall joint of porous light blade skeleton of making an uproar that falls.
By adopting the technical scheme, the sound-absorbing clamping sealing block plays a role in reinforcing the porous noise-reducing light blade framework and the blade sealing plate, and simultaneously noise generated by overlarge wind flow speed at the rotary tail wing of the low-noise blade is absorbed.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:
the utility model provides a low-clearance blade mounting structure, wherein a blade fixing sleeve shaft and a low-noise blade form a fixed blade whole, a mounting baffle plate and a fastening pin are mutually matched to enable a low-noise blade mechanism to be fixedly mounted at one end of a mounting shaft, the other end of the mounting shaft is fixed with a rotor shaft through a rotor fixing bolt, the blade formed by the blade fixing sleeve shaft and the low-noise blade is mounted on the rotor shaft and can be driven by the rotor shaft to rotate, the mounting is simple, and all components are mounted and fastened through a cross clamping joint and are not easy to loosen.
The utility model provides a low-clearance blade mounting structure, which is characterized in that a porous noise-reduction light blade framework and a blade fixing sleeve shaft are fixed into a whole, so that mounting deviation in the rotation process is avoided, blade sealing plates are fixed on two sides of the porous noise-reduction light blade framework and are mutually matched with the porous noise-reduction light blade framework to reduce noise in the rotation process of a blade, and a sound-absorbing clamping sealing block plays a role in clamping and reinforcing the porous noise-reduction light blade framework and the blade sealing plates, and simultaneously absorbs larger noise generated by overlarge rotation wind speed of a tail fin of the blade sealing plate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the front of the structure of the present utility model;
FIG. 3 is a schematic view of the structural installation of the present utility model;
FIG. 4 is an exploded view of the low noise vane mechanism of the present utility model.
In the figure: 1. a blade mounting mechanism body; 11. a rotor shaft; 2. a blade mounting mechanism; 21. a mounting shaft; 211. a rotor fixing bolt; 22. a fastening pin; 23. installing a baffle; 231. a main fixing bolt; 232. auxiliary fixing bolts; 3. a low noise vane mechanism; 31. a blade fixing sleeve shaft; 32. a low noise blade; 321. porous noise-reducing light blade skeleton; 322. the sound absorption clamping sealing block; 323. and (5) a blade sealing plate.
Description of the embodiments
The utility model is further illustrated by the following examples:
examples
As shown in fig. 1-4, the utility model provides a low-clearance blade mounting structure, which is suitable for an axial flow fan, and comprises a blade mounting mechanism main body 1, wherein the blade mounting mechanism main body 1 comprises a rotor shaft 11, one end of the rotor shaft 11 is provided with a blade mounting mechanism 2, the outer surface of the blade mounting mechanism 2 is provided with a low-noise blade mechanism 3, the blade mounting mechanism 2 comprises a mounting shaft 21, a fastening pin 22 and a mounting baffle plate 23, the inner surface of the mounting shaft 21 is clamped with the outer surface of one end of the rotor shaft 11, the low-noise blade mechanism 3 comprises a blade fixing sleeve shaft 31 and a low-noise blade 32, the inner surface of the blade fixing sleeve shaft 31 is provided with a clamping groove matched with the fastening pin 22, the outer surface of the mounting shaft 21 is provided with a rotor fixing bolt 211, one end of the rotor fixing bolt 211 is provided with a nut matched with the rotor fixing bolt 211, the outer surfaces of the mounting shaft 21 and the rotor shaft 11 are all provided with mounting threaded holes matched with the rotor fixing bolt 211, the outer surfaces of the rotor fixing bolt 211 are in threaded connection with the mounting shaft 21 and the outer surfaces of the rotor shaft 11, one end of the fastening pin 22 and one end of the mounting shaft 21 and the other end of the fixing sleeve shaft 11 are clamped with the inner surface of the blade sleeve shaft 23, the front end is fixedly connected with the front end of the blade sleeve shaft 31, and the front end is fixedly connected with the blade sleeve shaft 31, and the front end is fixed with the front end of the blade sleeve shaft 31, and the front end is fixed.
Examples
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: the outer surface of the installation baffle plate 23 is clamped with the front end surface of the blade fixing sleeve shaft 31, a main fixing bolt 231 is arranged in the middle of the installation baffle plate 23, installation holes matched with the main fixing bolt 231 are formed in the inner walls of the middle of the blade fixing sleeve shaft 31 and the fastening pin 22, the outer surface of the main fixing bolt 231 is in threaded connection with the middle inner walls of the installation baffle plate 23, the blade fixing sleeve shaft 31 and the fastening pin 22, auxiliary fixing bolts 232 are arranged around the installation baffle plate 23, installation holes matched with the auxiliary fixing bolts 232 are formed in the periphery of the side surfaces of the blade fixing sleeve shaft 31 and the fastening pin 22, the outer surface of the auxiliary fixing bolt 232 is in threaded connection with the side walls of the installation baffle plate 23, the blade fixing sleeve shaft 31 and the fastening pin 22, the main fixing bolt 231, the auxiliary fixing bolts 232 are respectively used for fixing the main fixing bolt 231, the blade fixing sleeve shaft 31 and the fastening pin 22, and the fastening pin 23 are mutually matched with the installation baffle plate 23 to perform the installation and fixing functions on the low-noise blade mechanism 32, the blade fixing sleeve shaft 31 is installed at one end of the installation bolt 21, the main fixing bolt 231 and the auxiliary fixing bolt 232 are used for easily fixing the blade fixing sleeve shaft 31 and the blade fixing sleeve shaft 31 to be fixed between the blade fixing sleeve shaft 31 and the blade fixing device 31, and the blade fixing device 31 are easy to be fixed loose.
Examples
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: the low noise blade 32 comprises a porous noise reduction light blade framework 321, a sound absorption clamping sealing block 322 and a blade sealing plate 323, one end of the porous noise reduction light blade framework 321 is fixedly connected with the outer surface of the blade fixing sleeve shaft 31, the blade sealing plate 323 is arranged at two sides of the porous noise reduction light blade framework 321, the side surfaces of the blade sealing plate 323 are fixedly connected with the inner side surfaces of the porous noise reduction light blade framework 321, one end of the blade sealing plate 323 and the porous noise reduction light blade framework 321 is provided with an installation clamping groove matched with the sound absorption clamping sealing block 322, the outer surface of the sound absorption clamping sealing block 322 is clamped with the inner walls of the blade sealing plate 323 and one end of the porous noise reduction light blade framework 321, the installation shaft 21 is clamped with one end of the rotor shaft 11, the rotor fixing bolts 211 are used for fixing, the installation shaft 21 is fixedly installed on the rotor shaft 11, the rotor shaft 11 is convenient to drive the blade fixing sleeve shaft 31 to rotate, the porous noise reduction light blade framework 321 and the blade sealing plate 323 are used for absorbing sound to form a low-noise blade through a porous structure, the porous noise reduction light blade framework 321 and the blade fixing sleeve shaft 31 are fixed into a whole, the position of the low-noise blade 32 is in a stable and fixed state, the sound absorption clamping sealing block 322 plays a role in reinforcing the porous noise reduction light blade framework 321 and the blade sealing plate 323, and meanwhile noise generated by overlarge wind flow speed at the rotating tail wing of the low-noise blade 32 is absorbed.
The working principle of the low clearance blade mounting structure is described in detail below.
As shown in fig. 1 to 4, first, the fastening pin 22 is inserted into the inner surface of the blade fixing sleeve shaft 31 to be fastened, the mounting baffle piece 23 is fastened to the front end surface of the blade fixing sleeve shaft 31, then the main fixing bolt 231, the blade fixing sleeve shaft 31 and the fastening pin 22 are respectively fixed by using the main fixing bolt 231 and the auxiliary fixing bolt 232, finally, the mounting shaft 21 is fastened to one end of the rotor shaft 11, and the rotor fixing bolt 211 is used to fix the mounting shaft 21 to the rotor shaft 11, so that the rotor shaft 11 drives the blade fixing sleeve shaft 31 to rotate.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (7)

1. The utility model provides a low clearance's blade mounting structure, is applicable to axial fan, includes blade mounting mechanism main part (1), blade mounting mechanism main part (1) are including rotor shaft (11), its characterized in that: one end of rotor shaft (11) is provided with blade installation mechanism (2), the surface of blade installation mechanism (2) is provided with low noise blade mechanism (3), blade installation mechanism (2) are including installation axle (21), fastening pin (22) and installation separation blade (23), the internal surface of installation axle (21) and the one end surface joint of rotor shaft (11), low noise blade mechanism (3) are including fixed sleeve axle (31) of blade and low noise blade (32), the internal surface of fixed sleeve axle (31) of blade is provided with the draw-in groove with fastening pin (22) looks adaptation.
2. A low clearance blade mounting arrangement in accordance with claim 1, wherein: the outer surface of installation axle (21) is provided with rotor fixing bolt (211), the one end of rotor fixing bolt (211) is provided with the nut with rotor fixing bolt (211) looks adaptation, the outside surface of installation axle (21), rotor shaft (11) all is provided with the installation screw hole with rotor fixing bolt (211) looks adaptation, the surface of rotor fixing bolt (211) and the outside surface threaded connection of installation axle (21), rotor shaft (11).
3. A low clearance blade mounting arrangement in accordance with claim 1, wherein: one end of the fastening pin (22) is fixedly connected with one end side surface of the mounting shaft (21), the outer surface of the fastening pin (22) is clamped with the inner surface of the blade fixing sleeve shaft (31), and the front end of the blade fixing sleeve shaft (31) is provided with a mounting groove matched with the mounting baffle (23).
4. A low clearance blade mounting arrangement in accordance with claim 1, wherein: the outer surface of installation separation blade (23) and the front end surface joint of blade fixed sleeve axle (31), the middle part of installation separation blade (23) is provided with main fixing bolt (231), the middle part inner wall of blade fixed sleeve axle (31), binding pin (22) all is provided with the mounting hole with main fixing bolt (231) looks adaptation, the surface and the installation separation blade (23), the middle part inner wall threaded connection of blade fixed sleeve axle (31), binding pin (22) of main fixing bolt (231).
5. A low clearance blade mounting arrangement in accordance with claim 1, wherein: the blade fixing sleeve is characterized in that auxiliary fixing bolts (232) are arranged around the installation baffle (23), mounting holes matched with the auxiliary fixing bolts (232) are formed in the periphery of the side surfaces of the blade fixing sleeve shaft (31) and the fastening pin (22), and the outer surfaces of the auxiliary fixing bolts (232) are in threaded connection with the side walls of the installation baffle (23), the blade fixing sleeve shaft (31) and the fastening pin (22).
6. A low clearance blade mounting arrangement in accordance with claim 1, wherein: the low noise blade (32) is including porous light blade skeleton (321) of making an uproar that falls, inhale sound joint sealing piece (322) and blade shrouding (323), the one end of porous light blade skeleton (321) of making an uproar and the fixed external surface fixed connection of sleeve axle (31) of blade, blade shrouding (323) set up in the both sides of porous light blade skeleton (321) of making an uproar that falls, the side surface of blade shrouding (323) and the inboard surface fixed connection of porous light blade skeleton (321) of making an uproar.
7. A low clearance blade mounting structure in accordance with claim 6, wherein: one end of each blade sealing plate (323) and one end of each porous noise reduction light blade framework (321) are provided with installation clamping grooves matched with the corresponding sound absorption clamping sealing blocks (322), and the outer surfaces of the sound absorption clamping sealing blocks (322) are clamped with one end inner wall of each blade sealing plate (323) and one end inner wall of each porous noise reduction light blade framework (321).
CN202223036509.0U 2022-11-16 2022-11-16 Low-clearance blade mounting structure Active CN218953642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223036509.0U CN218953642U (en) 2022-11-16 2022-11-16 Low-clearance blade mounting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223036509.0U CN218953642U (en) 2022-11-16 2022-11-16 Low-clearance blade mounting structure

Publications (1)

Publication Number Publication Date
CN218953642U true CN218953642U (en) 2023-05-02

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ID=86138838

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223036509.0U Active CN218953642U (en) 2022-11-16 2022-11-16 Low-clearance blade mounting structure

Country Status (1)

Country Link
CN (1) CN218953642U (en)

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