CN116006485A - Elastic direct-connected fan - Google Patents
Elastic direct-connected fan Download PDFInfo
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- CN116006485A CN116006485A CN202310257167.5A CN202310257167A CN116006485A CN 116006485 A CN116006485 A CN 116006485A CN 202310257167 A CN202310257167 A CN 202310257167A CN 116006485 A CN116006485 A CN 116006485A
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Abstract
The utility model provides an elasticity direct-connected fan, includes fan shell, impeller, direct-connected motor, fan shell base, motor support, current collector, its technical essential is: the fan shell comprises a front panel, a rear panel and a coaming; the inner sides of the front panel and the rear panel are respectively provided with an air inlet end reinforcing plate and a motor end reinforcing plate; a volute coaming is arranged between the air inlet end reinforcing plate and the motor end reinforcing plate; an air inlet flange and a current collector are arranged on the front panel; square motor ports and square motor port cover plates corresponding to the square motor ports are arranged on the rear panel and the motor end reinforcing rib plates; a motor shaft cooling hole and a connecting cushion block are arranged on the square motor hole cover plate; a motor flange connected with the connecting cushion block is arranged on the shell of the motor; elastic shock pads are arranged among all the parts of the fan. The invention realizes the stable operation of the direct-connected transmission fan with the machine type of more than 6.3A through the elastic connection structure, and has the advantages of shock absorption, small occupied space, sound insulation of materials and heat dissipation of a motor shaft.
Description
Technical Field
The invention belongs to the field of fans, and particularly relates to an elastic direct-connected fan.
Background
In the prior art, most fans in a direct-connection transmission mode are in rigid connection, the direct-connection transmission of the rigid connection can only achieve the situation that the number of the fans is below 6.3A, and the rigid direct-connection transmission fans above the number of the fans is more than 6.3A, so that the fans above the number of the fans are damaged due to overlarge vibration of the fans, and the fans above the number of the fans can be in direct-connection transmission or belt transmission through shaft gears.
Compared with a fan driven by a direct connection of a shaft coupling or a belt, the fan driven by the shaft coupling has the following defects: (1) under the condition that the two motors with the same power are used, the mechanical efficiency of the fan driven by the shaft coupling directly or by the belt is low; (2) the transmission part of the fan driven by the coupling directly or by the belt occupies a larger space; (3) the transmission parts of the fan driven by the shaft coupling direct connection transmission or the belt transmission are easy to wear, and the maintenance cost is increased in the later period; from the above-mentioned deficiency, it can be seen that the fan of the direct-connection transmission mode is the best fan transmission mode, how to solve the direct-connection transmission fan with the number of 6.3A or more and damage the fan caused by too large vibration becomes the difficult problem in the prior art.
Disclosure of Invention
The invention aims to provide an elastic direct-connected fan, which realizes the stable operation of the direct-connected transmission fan with the number of 6.3A or more through an elastically connected fan structure, solves the problem that the direct-connected transmission fan with the number of 6.3A or more can be damaged due to overlarge vibration, and has the advantages of shock absorption, small occupied space, sound insulation of materials and heat dissipation of a motor shaft.
The invention is realized by the following technical scheme: the utility model provides an elasticity direct-connected fan, includes the fan shell, impeller, with the motor of impeller direct-connected, fan shell base, the motor support, the current collector, its technical essential is: the shape of the fan shell is a square body, and the fan shell comprises a front panel, a rear panel and a coaming; an air inlet end reinforcing plate connected with the coaming is arranged at the inner side position close to the front panel; a motor end reinforcing rib plate connected with the coaming is arranged at the inner side position close to the rear panel; a volute coaming is arranged between the air inlet end reinforcing plate and the motor end reinforcing plate; square air inlets which are symmetrical to each other are arranged in the middle of the front panel and the air inlet end reinforcing plate; square air inlet square discs corresponding to the square air inlets are arranged at the edges of the two square air inlets; an air inlet flange is arranged on the outer side of the square air inlet square disc, and the current collector is arranged on the inner side of the square air inlet square disc; square motor ports which are symmetrical to each other are arranged on the rear panel and the motor end reinforcing plate; a square motor port cover plate corresponding to the square motor port is arranged on the motor end reinforcing plate; a motor shaft cooling hole is formed in the square motor hole cover plate; a connecting cushion block is arranged on the outer side of the square motor port cover plate; a motor flange connected with the connecting cushion block is arranged on the shell of the motor; an air outlet corresponding to the outlet end of the volute coaming is arranged on the coaming, and an air outlet flange is arranged at the air outlet of the coaming; the impeller is arranged in the volute coaming, and one side of the impeller, which is close to the motor, is provided with a plurality of ventilation fan blades which rotate coaxially with the impeller; the fan shell base is arranged at the bottom of the fan shell; the motor is connected with the fan shell base through a motor bracket; elastic shock pads are arranged between the motor flange and the connecting cushion block, between the motor support and the motor, between the fan shell and the fan shell base and between the motor support and the fan shell base.
Further, the air inlet end reinforcing rib plate mainly comprises an air inlet end left rib plate, an air inlet end right rib plate, an air inlet end upper rib plate and an air inlet end lower rib plate which are welded; l-shaped folded edges are arranged at the welding positions among the square air inlet edge of the air inlet end reinforcing rib plate, the air inlet end left rib plate, the air inlet end right rib plate, the air inlet end upper rib plate and the air inlet end lower rib plate; c-shaped folded edges are arranged at the edges around the air inlet end reinforcing plate; the motor end reinforcing rib plate is mainly formed by welding a motor end left rib plate, a motor end right rib plate, a motor end upper rib plate and a motor end lower rib plate; l-shaped folded edges are arranged at the welding positions among the square motor opening edge of the motor end reinforcing rib plate, the motor end left rib plate, the motor end right rib plate, the motor end upper rib plate and the motor end lower rib plate; c-shaped folded edges are arranged at the edges around the motor end reinforcing plate.
Further, the square air inlet square disc, the air inlet flange and the current collector are of an integrated structure.
Further, sound insulation material layers are arranged between the front panel and the air inlet end reinforcing plate, between the rear panel and the motor end reinforcing plate and outside the volute coaming.
Further, a steady flow sealing plate corresponding to the square air inlet is arranged on the air inlet end reinforcing plate.
Further, the rear disc of the impeller is an inward concave cone.
The invention has the beneficial effects and characteristics that:
according to the invention, through the welding combination structure of the air inlet end reinforcing plate, the motor end reinforcing plate and the worm coaming in the fan shell, the strength of the fan shell is increased, and the elastic shock pads are added between the motor flange and the connecting cushion block, between the motor support and the motor, between the fan shell and the fan shell base and between the motor support and the fan shell base elastic connection, so that the whole shock absorption and stable running of the direct-connected fan with the size of 6.3A or more can be realized, and meanwhile, compared with the fan in a coupling direct-connected transmission or belt transmission mode, the space is saved, and the subsequent maintenance of transmission parts is avoided; the integral noise reduction of the fan is realized through the combination of the structure of the fan shell and the sound insulation material layer; the ventilation fan blades are driven by the motor to rotate so as to accelerate the circulation of air at the position of the motor rotating shaft, so that the heat dissipation problem of the motor output shaft is solved, the damage of the fan caused by dilution or flow of lubricating oil due to overheat of the motor output shaft is avoided, and the motor structure is protected.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall construction of a side of the present invention;
FIG. 2 is an enlarged schematic diagram of portion A of FIG. 1;
FIG. 3 is an enlarged schematic diagram of portion B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the front face of the present invention.
In the figure, the main part number is described: 1. a fan housing; 101. a front panel; 102. a rear panel; 103. coaming plate; 104. an air inlet end reinforcing plate; 105. a motor end reinforcing plate; 106. a volute coaming; 107. an air outlet flange; 2. square air inlet square plate; 201. an air inlet flange; 202. a current collector; 3. square motor mouth cover plate; 301. connecting cushion blocks; 4. a motor; 401. a motor flange; 5. an impeller; 501. ventilation fan blades; 6. a fan housing base; 7. a motor bracket; 8. an elastic shock pad; 9. a sound insulation material layer; 10. and a steady flow sealing plate.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Description of the embodiments
The following describes the invention in detail by way of specific examples in connection with fig. 1-4.
Examples
The elastic direct-connection fan comprises a fan shell 1, an impeller 5, a motor 4 directly connected with the impeller, a fan shell base 6, a motor bracket 7 and a current collector 202, wherein: the shape of the fan shell is a square body, and the fan shell comprises a front panel 101, a rear panel 102 and a coaming 103 which are welded with each other; an air inlet end reinforcing plate 104 welded with the coaming is arranged at the inner side position close to the front panel; a motor end reinforcing rib plate 105 welded with the coaming is arranged at the inner side position close to the rear panel; a volute coaming 106 is welded between the air inlet end reinforcing plate and the motor end reinforcing plate, and the volute of the fan is formed by welding and enclosing the air inlet end reinforcing plate, the motor end reinforcing plate and the volute coaming; square air inlets (namely air inlets of the spiral case) which are symmetrical to each other are formed in the middle parts of the front panel and the air inlet end reinforcing plate; square air inlet square discs 2 corresponding to the square air inlets are arranged at the edges of the two square air inlets; an air inlet flange 201 is arranged on the outer side of the square air inlet square disc, and the current collector is arranged on the inner side of the square air inlet square disc; in order to facilitate production, the square air inlet square disc, the air inlet flange and the current collector are of a welded integrated structure; the square air inlet square plate is fastened on the fan shell through self-tapping nails for convenient installation and maintenance. Square motor ports which are symmetrical to each other are arranged on the rear panel and the motor end reinforcing plate; a square motor port cover plate 3 corresponding to the square motor port is arranged on the motor end reinforcing plate; a motor shaft cooling hole is formed in the square motor hole cover plate; a connecting cushion block 301 is welded on the outer side of the square motor port cover plate; a motor flange 401 is arranged on the shell of the motor and is fixedly connected with the connecting cushion block through bolts; an air outlet (namely, an air outlet of a volute) corresponding to the outlet end of the volute coaming is arranged on the coaming, and an air outlet flange 107 is welded at the air outlet of the coaming; in order to increase the structural strength of the impeller, the impeller is arranged in the volute coaming, and the rear disc of the impeller is an inward concave cone; a plurality of ventilation fan blades 501 which rotate coaxially with the impeller are welded on one side of the impeller close to the motor, and ventilation fans She Zhouxiang are arranged on the periphery of a central shaft of a rear disc of the impeller; the ventilation fan blades can be matched with a motor shaft cooling hole to cool a motor output shaft in the rotation process of the fan; the fan shell base is arranged at the bottom of the fan shell; the motor is connected with the fan shell base through a motor bracket; elastic shock pads are arranged between the motor flange and the connecting cushion block, between the motor support and the motor, between the fan shell and the fan shell base and between the motor support and the fan shell base, and all the elastic shock pads are connected by bolts and are also connected elastically between the structural connection, so that the installation and the production are convenient.
In order to increase the strength of the fan shell, the air inlet end reinforcing rib plate mainly comprises an air inlet end left rib plate, an air inlet end right rib plate, an air inlet end upper rib plate and an air inlet end lower rib plate which are welded; l-shaped folded edges are arranged at the welding positions among the square air inlet edge of the air inlet end reinforcing rib plate, the air inlet end left rib plate, the air inlet end right rib plate, the air inlet end upper rib plate and the air inlet end lower rib plate; c-shaped folded edges are arranged at the edges around the air inlet end reinforcing plate; the motor end reinforcing rib plate is mainly formed by welding a motor end left rib plate, a motor end right rib plate, a motor end upper rib plate and a motor end lower rib plate; l-shaped folded edges are arranged at the welding positions among the square motor opening edge of the motor end reinforcing rib plate, the motor end left rib plate, the motor end right rib plate, the motor end upper rib plate and the motor end lower rib plate; c-shaped folded edges are arranged at the edges around the motor end reinforcing plate. The L-shaped folding edge and the C-shaped folding edge are completed through a bending process, and the air inlet end reinforcing plate and the motor end reinforcing plate are completed through a process of bending and then welding.
In order to reduce noise of the fan in the working process, sound insulation material layers are arranged between the front panel and the air inlet end reinforcing plate, between the rear panel and the motor end reinforcing plate and outside the volute coaming, and the sound insulation material layers are made of a combination of a pixel flame retardant plate and a sound insulation felt.
In order to prevent vortex flow from being generated in the worm coaming due to redundant groove structures and reduce the efficiency of the fan, a steady flow sealing plate corresponding to the square air inlet is arranged on the air inlet end reinforcing plate, and a round port through which a current collector passes is reserved on the steady flow sealing plate; in order to facilitate installation and maintenance, four corners of the square air inlet at the inner side of the air inlet end reinforcing plate are welded with stable angles; the steady flow sealing plate is connected with the steady angle through a self-tapping screw.
According to the invention, through the welding combination structure of the air inlet end reinforcing plate, the motor end reinforcing plate and the volute coaming in the fan shell, the intensity of the fan shell is increased, and meanwhile, the resonance generated when the fan operates is reduced; the integral noise reduction of the fan is realized through the combination of the structure of the fan shell and the sound insulation material layer; the structure of the steady flow sealing plate is added between the air inlet end reinforcing plate and the current collector, so that vortex is prevented from being generated in the fan due to the notch structure of the square air inlet of the air inlet end reinforcing plate, and the efficiency of the fan is reduced; the square air inlet square disc, the current collector and the air inlet flange are integrally welded to form a standard component, so that stock can be produced in advance, and the production efficiency is improved; during installation, the distance between the front disc of the impeller and the current collector can be effectively adjusted by moving the current collector and the air inlet flange, so that the installation and the debugging are facilitated; an elastic shock pad is added between the motor flange and the connecting cushion block, between the motor support and the motor, between the fan shell and the fan shell base and between the motor support and the elastic connection of the fan shell base, so that the whole shock absorption and stable operation of the fan are realized; the ventilation fan blades are driven by the motor to rotate so as to accelerate the circulation of air at the position of the motor rotating shaft, so that the heat dissipation problem of the motor output shaft is solved, the damage of the fan caused by dilution or flow of lubricating oil due to overheat of the motor output shaft is avoided, and the motor structure is protected.
The invention reduces the resonance of the shell by matching the strong rib fan shell structure formed by elastic connection with the elastic shock pad, and solves the problem that the rigid direct-connected transmission fan with the number of more than 6.3A is damaged due to overlarge vibration; noise is reduced by the sound insulation material integrated with the inside of the fan shell; the motor and the fan shell are positioned bidirectionally through an elastic connecting structure for connecting the cushion block and the motor flange; and three-end air cooling heat dissipation of the motor is realized by using the ventilating fan blades.
Claims (6)
1. The utility model provides an elasticity direct-connected fan, includes the fan shell, impeller, with the motor of impeller direct-connected, fan shell base, the motor support, the current collector, its characterized in that: the shape of the fan shell is a square body, and the fan shell comprises a front panel, a rear panel and a coaming; an air inlet end reinforcing plate connected with the coaming is arranged at the inner side position close to the front panel; a motor end reinforcing rib plate connected with the coaming is arranged at the inner side position close to the rear panel; a volute coaming is arranged between the air inlet end reinforcing plate and the motor end reinforcing plate; square air inlets which are symmetrical to each other are arranged in the middle of the front panel and the air inlet end reinforcing plate; square air inlet square discs corresponding to the square air inlets are arranged at the edges of the two square air inlets; an air inlet flange is arranged on the outer side of the square air inlet square disc, and the current collector is arranged on the inner side of the square air inlet square disc; square motor ports which are symmetrical to each other are arranged on the rear panel and the motor end reinforcing plate; a square motor port cover plate corresponding to the square motor port is arranged on the motor end reinforcing plate; a motor shaft cooling hole is formed in the square motor hole cover plate; a connecting cushion block is arranged on the outer side of the square motor port cover plate; a motor flange connected with the connecting cushion block is arranged on the shell of the motor; an air outlet corresponding to the outlet end of the volute coaming is arranged on the coaming, and an air outlet flange is arranged at the air outlet of the coaming; the impeller is arranged in the volute coaming, and one side of the impeller, which is close to the motor, is provided with a plurality of ventilation fan blades which rotate coaxially with the impeller; the fan shell base is arranged at the bottom of the fan shell; the motor is connected with the fan shell base through a motor bracket; elastic shock pads are arranged between the motor flange and the connecting cushion block, between the motor support and the motor, between the fan shell and the fan shell base and between the motor support and the fan shell base.
2. The elastic direct-coupled fan according to claim 1, wherein: the air inlet end reinforcing rib plate is mainly formed by welding an air inlet end left rib plate, an air inlet end right rib plate, an air inlet end upper rib plate and an air inlet end lower rib plate; l-shaped folded edges are arranged at the welding positions among the square air inlet edge of the air inlet end reinforcing rib plate, the air inlet end left rib plate, the air inlet end right rib plate, the air inlet end upper rib plate and the air inlet end lower rib plate; c-shaped folded edges are arranged at the edges around the air inlet end reinforcing plate; the motor end reinforcing rib plate is mainly formed by welding a motor end left rib plate, a motor end right rib plate, a motor end upper rib plate and a motor end lower rib plate; l-shaped folded edges are arranged at the welding positions among the square motor opening edge of the motor end reinforcing rib plate, the motor end left rib plate, the motor end right rib plate, the motor end upper rib plate and the motor end lower rib plate; c-shaped folded edges are arranged at the edges around the motor end reinforcing plate.
3. The elastic direct-coupled fan according to claim 1, wherein: the square air inlet square disc, the air inlet flange and the current collector are of an integrated structure.
4. The elastic direct-coupled fan according to claim 1, wherein: and sound insulation material layers are arranged between the front panel and the air inlet end reinforcing plate, between the rear panel and the motor end reinforcing plate and outside the volute coaming.
5. The elastic direct-coupled fan according to claim 1, wherein: and the air inlet end reinforcing plate is provided with a steady flow sealing plate corresponding to the square air inlet.
6. The elastic direct-coupled fan according to claim 1, wherein: the rear disk of the impeller is an inward concave cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310257167.5A CN116006485A (en) | 2023-03-17 | 2023-03-17 | Elastic direct-connected fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310257167.5A CN116006485A (en) | 2023-03-17 | 2023-03-17 | Elastic direct-connected fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116006485A true CN116006485A (en) | 2023-04-25 |
Family
ID=86025118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310257167.5A Pending CN116006485A (en) | 2023-03-17 | 2023-03-17 | Elastic direct-connected fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116006485A (en) |
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2023
- 2023-03-17 CN CN202310257167.5A patent/CN116006485A/en active Pending
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