CN214945133U - Shockproof centrifugal fan - Google Patents
Shockproof centrifugal fan Download PDFInfo
- Publication number
- CN214945133U CN214945133U CN202120833623.2U CN202120833623U CN214945133U CN 214945133 U CN214945133 U CN 214945133U CN 202120833623 U CN202120833623 U CN 202120833623U CN 214945133 U CN214945133 U CN 214945133U
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- centrifugal fan
- supporting screw
- transmission shaft
- mount table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000013016 damping Methods 0.000 claims abstract description 16
- 229920000742 Cotton Polymers 0.000 claims description 8
- 210000000078 claw Anatomy 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 abstract description 3
- 241000883990 Flabellum Species 0.000 abstract 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 12
- 238000001914 filtration Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001164397 Maireana aphylla Species 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to a centrifugal fan takes precautions against earthquakes, comprising a base plate, the mount table, a pedestal, the spiral case, the flabellum, motor power, the bottom plate bottom is equipped with the lift lower margin, mount table threaded connection has last supporting screw, the bottom plate top is equipped with the lower support bar, it is equipped with the bulb to go up the supporting screw bottom, the lower support bar top is equipped with the connecting seat, the connecting seat top is equipped with bulb complex ball hole, be equipped with the damping spring coaxial with last supporting screw between bottom plate and the mount table, it has the cushion to inlay on the mount table, be equipped with the swivel nut in the cushion, the base top is equipped with the bearing frame, it is connected with the transmission shaft to rotate on the bearing frame, the flabellum is connected to transmission shaft one end, the shaft coupling is connected to the transmission shaft other end, coupling joint motor power's main shaft. The utility model discloses a damping spring provides the flexible support to the mount table, prevents that vibration transmission from transmitting for the ground, goes up the supporting screw and passes through the bulb with the bottom suspension strut and be connected, is convenient for spacing damping spring, guarantees the mount table all the time simultaneously and guarantees the level all the time.
Description
Technical Field
The utility model relates to a centrifugal fan, in particular to centrifugal fan takes precautions against earthquakes.
Background
The centrifugal fan is based on the principle of converting kinetic energy into potential energy, and uses the high-speed rotating impeller to accelerate gas, then decelerates and changes the flow direction, so that the kinetic energy is converted into potential energy. The working principle of the centrifugal fan is as follows: when the motor rotates, the impeller of the fan rotates, air is thrown out of the impeller when the impeller rotates, the air is thrown out of the impeller and collected in the diffusion cavity of the casing, the air is discharged at a reduced speed along with the diffusion cavity, and when the air in the impeller is discharged and then pressed, the air outside the air suction port is pressed into the impeller under the action of atmospheric pressure, so that the impeller rotates continuously, and the air also flows in the pipeline continuously under the action of the ventilator. The centrifugation produces the vibration easily at the working process, gives the ground with vibration transmission easily, gives power motor with vibration transmission easily simultaneously, consequently leads to the damage of power motor or ground.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal fan takes precautions against earthquakes not enough to prior art.
The utility model provides a technical scheme that its technical problem adopted is: a shockproof centrifugal fan comprises a bottom plate, a mounting platform arranged on the bottom plate, a base arranged on the mounting platform, a volute arranged on the front side of the base, a fan blade arranged in the volute, and a power motor arranged on the base and connected with the main shaft, wherein a lifting foot margin is arranged at the bottom of the bottom plate, an upper supporting screw rod is in threaded connection with the mounting platform, a lower supporting rod is arranged at the top of the bottom plate, a ball head is arranged at the bottom of the upper supporting screw rod, a connecting seat is arranged at the top of the lower supporting rod, a spherical pit matched with the ball head is arranged at the top of the connecting seat, a damping spring coaxial with the upper supporting screw rod is arranged between the bottom plate and the mounting platform, an elastic cushion is inlaid on the mounting platform, a threaded sleeve matched with the upper supporting screw rod is arranged in the elastic cushion, and a bearing seat is arranged at the top of the base, the fan blade type power motor is characterized in that a transmission shaft is rotatably connected to the bearing block, one end of the transmission shaft is connected with the fan blade, the other end of the transmission shaft is connected with a coupler, and the coupler is connected with a main shaft of the power motor.
Through damping spring provides the flexible support to the mount table in the above-mentioned design, prevent that vibration transmission from giving the ground, go up supporting screw and be connected through the bulb with the bottom suspension vaulting pole, be convenient for spacing damping spring, guarantee the mount table all the time simultaneously and guarantee the level.
As a further improvement of the design, the coupler comprises an annular outer shell, and a connecting shaft which is arranged in the annular outer shell and coaxial with the annular outer shell, wherein the inner wall of the annular outer shell is provided with transmission claws which are staggered with each other, and the transmission claws are wrapped by elastic blocks. The elastic block in the coupler is convenient for filter the vibration of the transmission shaft, and prevents the vibration from being transmitted to the power motor.
As a further improvement of the design, the elastic block is internally distributed with a cavity, so that the elasticity of the elastic block is improved, and the filtering vibration effect is good.
As a further improvement of the design, a stepped through hole with a large bottom and a small top is arranged at the bottom of the mounting platform, the elastic pad is arranged in the stepped through hole, an annular cover plate for sealing the stepped through hole is arranged at the bottom of the stepped through hole, and a U-shaped elastic sheet with a horizontal opening is arranged on the outer wall of the threaded sleeve. The shoulder hole is convenient for spacing the elastic cushion, is convenient for go up supporting screw and mount table flexonics, is convenient for filter the vibration.
As a further improvement of the design, the damping spring is sleeved with a sound-absorbing cotton sleeve, and a rubber protective sleeve is sleeved outside the sound-absorbing cotton sleeve. Inhale the cotton cover of sound and rubber protective sheath and be convenient for absorb the noise of upper support screw rod and lower bracing piece junction.
As a further improvement of the design, the bearing seat is provided with a cavity which is convenient for the transmission shaft to penetrate through, two ends of the bearing seat are provided with bearing bodies, and the cavity is filled with lubricating oil. The cavity is convenient for heat dissipation to transmission shaft and bearing body.
As a further improvement of the design, the lifting anchor comprises a lifting bolt in threaded connection with the bottom plate, a bottom plate and a rectangular tension spring, wherein the bottom plate rotates at the bottom of the lifting bolt, the rectangular tension spring is sleeved outside the lifting bolt, the top of the rectangular tension spring abuts against the bottom plate, and the bottom of the rectangular tension spring abuts against the bottom plate. The rectangular spring is good in stability, and meanwhile, the vibration is convenient to filter, and the lifting bolt is prevented from loosening.
The utility model has the advantages that: the utility model discloses a damping spring provides the flexible support to the mount table, prevents that vibration transmission from transmitting for the ground, goes up the supporting screw and passes through the bulb with the bottom suspension strut and be connected, is convenient for spacing damping spring, guarantees the mount table all the time simultaneously and guarantees the level all the time.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a partial schematic view of the connection between the mounting table and the bottom plate of the present invention.
Fig. 4 is a schematic cross-sectional view of the coupling of the present invention.
In the figure, 1, a bottom plate, 2, an installation table, 3, fan blades, 4, a volute, 5, a lifting bolt, 6, a rectangular tension spring, 7, a bottom plate, 8, a base, 9, a cavity, 10, a bearing seat, 11, a bearing body, 12, a coupler, 13, a power motor, 14, a threaded sleeve, 15, a U-shaped elastic sheet, 16, a ball head, 17, a lower supporting rod, 18, a sound-absorbing cotton sleeve, 19, a rubber protective sleeve, 20, an annular cover plate, 21, an upper supporting screw, 22, a connecting seat, 23, a damping spring, 24, an elastic pad, 25, a transmission shaft, 26, an annular outer shell, 27, a transmission claw, 28, an elastic block and 29 are connected.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only for the purpose of explanation, but not for the purpose of limitation.
Example (b): a shockproof centrifugal fan comprises a bottom plate 1, a mounting platform 2 arranged on the bottom plate 1, a base 8 arranged on the mounting platform 2, a volute 4 arranged on the front side of the base 8, a fan blade 3 arranged in the volute 4, and a power motor 13 arranged on the base 8 and connected with the main shaft and the fan blade 3, wherein a lifting ground foot is arranged at the bottom of the bottom plate 1, an upper supporting screw 21 is connected with the mounting platform 2 through threads, a lower supporting rod 17 is arranged at the top of the bottom plate 1, a ball head 16 is arranged at the bottom of the upper supporting screw 21, a connecting seat 22 is arranged at the top of the lower supporting rod 17, a spherical pit matched with the ball head 16 is arranged at the top of the connecting seat 22, a damping spring 23 coaxial with the upper supporting screw 21 is arranged between the bottom plate 1 and the mounting platform 2, an elastic cushion 24 is inlaid on the mounting platform 2, and a threaded sleeve 14 matched with the upper supporting screw 21 is arranged in the elastic cushion 24, the top of the base 8 is provided with a bearing seat 10, the bearing seat 10 is rotatably connected with a transmission shaft 25, one end of the transmission shaft 25 is connected with the fan blades 3, the other end of the transmission shaft 25 is connected with a coupler 12, and the coupler 12 is connected with a main shaft of the power motor 13.
Through damping spring 23 provides the flexible support to mount table 2 in the above-mentioned design, prevent that vibration transmission from giving the ground, go up supporting screw 21 and be connected through bulb 16 with lower support rod 17, be convenient for spacing damping spring 23, guarantee the mount table 2 all the time simultaneously and guarantee the level.
As a further improvement of the present design, the coupler 12 includes an annular outer casing 26, a connecting shaft 29 disposed in the annular outer casing 26 and coaxial with the annular outer casing 26, the connecting shaft 29 and the inner wall of the annular outer casing 26 are provided with mutually staggered transfer claws 27, and the transfer claws 27 are wrapped with elastic blocks 28. The elastic blocks 28 in the coupling 12 facilitate filtering out the vibrations of the transmission shaft 25 and prevent them from being transmitted to the power motor 13.
As a further improvement of the design, the cavities 9 are distributed in the elastic block 28, so that the elasticity of the elastic block 28 is improved, and the vibration filtering effect is good.
As a further improvement of the design, a stepped through hole with a large bottom and a small top is arranged at the bottom of the mounting platform 2, the elastic pad 24 is arranged in the stepped through hole, an annular cover plate 20 for sealing the stepped through hole is arranged at the bottom of the stepped through hole, and a U-shaped elastic sheet 15 with a horizontal opening is arranged on the outer wall of the screw sleeve 14. The stepped hole is convenient for limiting the elastic cushion 24, is convenient for flexibly connecting the upper supporting screw 21 with the mounting table 2 and is convenient for filtering vibration.
As a further improvement of the design, a sound absorption cotton sleeve 18 is sleeved outside the damping spring 23, and a rubber protective sleeve 19 is sleeved outside the sound absorption cotton sleeve 18. The sound-absorbing cotton bush 18 and the rubber protective sleeve 19 facilitate absorption of noise at the junction of the upper support screw 21 and the lower support rod 17.
As a further improvement of the design, the bearing seat 10 is provided with a cavity 9 which is convenient for the transmission shaft 25 to penetrate through, two ends of the bearing seat 10 are provided with bearing bodies 11, and the cavity 9 is filled with lubricating oil. The cavity 9 facilitates heat dissipation to the drive shaft 25 and the bearing body 11.
As a further improvement of the design, the lifting anchor comprises a lifting bolt 5 in threaded connection with the bottom plate 1, a bottom plate 7 rotating with the bottom of the lifting bolt 5, and a rectangular tension spring 6 sleeved outside the lifting bolt 5, wherein the top of the rectangular tension spring 6 abuts against the bottom plate 1, and the bottom of the rectangular tension spring 6 abuts against the bottom plate 7. The rectangular spring is good in stability, and meanwhile, the rectangular spring is convenient for filtering vibration and preventing the lifting bolt 5 from loosening.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. A shockproof centrifugal fan comprises a bottom plate, a mounting platform arranged on the bottom plate, a base arranged on the mounting platform, a volute arranged on the front side of the base, a fan blade arranged in the volute, and a power motor arranged on the base and connected with the main shaft and the fan blade, and is characterized in that a lifting foot margin is arranged at the bottom of the bottom plate, an upper supporting screw rod is in threaded connection with the mounting platform, a lower supporting rod is arranged at the top of the bottom plate, a ball head is arranged at the bottom of the upper supporting screw rod, a connecting seat is arranged at the top of the lower supporting rod, a spherical pit matched with the ball head is arranged at the top of the connecting seat, a damping spring coaxial with the upper supporting screw rod is arranged between the bottom plate and the mounting platform, an elastic cushion is inlaid on the mounting platform, a threaded sleeve matched with the upper supporting screw rod is arranged in the elastic cushion, a bearing seat is arranged at the top of the base, the fan blade type power motor is characterized in that a transmission shaft is rotatably connected to the bearing block, one end of the transmission shaft is connected with the fan blade, the other end of the transmission shaft is connected with a coupler, and the coupler is connected with a main shaft of the power motor.
2. The shockproof centrifugal fan of claim 1, wherein the coupler comprises an annular outer housing and a connecting shaft disposed in the annular outer housing and coaxial with the annular outer housing, the connecting shaft and the inner wall of the annular outer housing are provided with mutually staggered transfer claws, and the transfer claws are wrapped with elastic blocks.
3. A vibration-proof centrifugal fan according to claim 2, wherein cavities are distributed in the elastic block.
4. The shockproof centrifugal fan according to claim 1, wherein the bottom of the mounting platform is provided with a stepped through hole with a large bottom and a small top, the elastic pad is arranged in the stepped through hole, the bottom of the stepped through hole is provided with an annular cover plate for closing the stepped through hole, and the outer wall of the threaded sleeve is provided with a U-shaped elastic sheet with a horizontal opening.
5. A shockproof centrifugal fan as claimed in claim 1, wherein said damping spring is sheathed with a sound-absorbing cotton sleeve, and said sound-absorbing cotton sleeve is sheathed with a rubber protective sleeve.
6. A vibration-proof centrifugal fan as claimed in claim 1, wherein said bearing seat has a cavity for said transmission shaft to pass through, and said bearing seat has bearing bodies at both ends, and said cavity is filled with lubricant.
7. The shockproof centrifugal fan according to claim 1, wherein the lifting anchor comprises a lifting bolt in threaded connection with the bottom plate, a bottom plate rotating with the bottom of the lifting bolt, and a rectangular tension spring sleeved outside the lifting bolt, the top of the rectangular tension spring abuts against the bottom plate, and the bottom of the rectangular tension spring abuts against the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120833623.2U CN214945133U (en) | 2021-04-22 | 2021-04-22 | Shockproof centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120833623.2U CN214945133U (en) | 2021-04-22 | 2021-04-22 | Shockproof centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945133U true CN214945133U (en) | 2021-11-30 |
Family
ID=79043868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120833623.2U Expired - Fee Related CN214945133U (en) | 2021-04-22 | 2021-04-22 | Shockproof centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945133U (en) |
-
2021
- 2021-04-22 CN CN202120833623.2U patent/CN214945133U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |