CN211397966U - Detachable centrifugal fan - Google Patents
Detachable centrifugal fan Download PDFInfo
- Publication number
- CN211397966U CN211397966U CN201920950028.XU CN201920950028U CN211397966U CN 211397966 U CN211397966 U CN 211397966U CN 201920950028 U CN201920950028 U CN 201920950028U CN 211397966 U CN211397966 U CN 211397966U
- Authority
- CN
- China
- Prior art keywords
- fan
- transmission
- volute
- motor
- assembly
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a detachable centrifugal ventilator, which comprises a motor, a transmission component, a fan component and a dust removing device, wherein one end of the transmission component is connected with the motor, the other end of the transmission component is connected with one end of the fan component, and the other end of the fan component is connected with the dust removing device; the transmission assembly comprises a fan transmission shaft body, and a convex groove is formed in the sealing position of the motor input end of the fan transmission shaft body along the rotating direction of the rotating shaft of the fan transmission shaft body; the fan assembly comprises a volute, and the volute comprises an air outlet and an air inlet. The utility model discloses a detachable centrifugal fan sets up the connecting shaft spare into movable connection, and when blade on the impeller appeared wearing and tearing need be changed, whole part need not be changed, remains the shaft spare, has saved the material, has improved the utilization ratio.
Description
Technical Field
The utility model relates to a fan structure, concretely relates to detachable centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion. The centrifugal fan comprises a casing, a main shaft, impellers, a bearing transmission mechanism, a motor and the like, wherein the impellers are used as parts with the most serious loss and are frequently required to be replaced, blades on the impellers are parts with the most serious loss, all parts on the conventional impellers are welded and fixed, when one part is lost, the whole impeller is required to be replaced, and because the connecting shaft piece is more resistant to loss and expensive to counterfeit, the connecting shaft piece is still intact after the blades are lost, and the waste is serious during the replacement.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at solving the not enough among the prior art, provide a detachable centrifugal fan, set up connecting shaft spare into movable connection, when blade on the impeller appears wearing and tearing and need change, need not change whole part, remain the shaft spare, saved the material, improved the utilization ratio.
The technical scheme is as follows: the utility model discloses a detachable centrifugal fan, including motor, drive assembly, fan subassembly and dust collecting equipment, the one end of drive assembly with the motor is connected, the other end of drive assembly with the one end of fan subassembly is connected, the other end of fan subassembly is connected with dust collecting equipment;
the transmission assembly comprises a fan transmission shaft body, and a convex groove is formed in the sealing position of the motor input end of the fan transmission shaft body along the rotating direction of the rotating shaft of the fan transmission shaft body; a groove is arranged at the sealing position of the connecting end below the side cover of the fan transmission case, the spiral direction of the groove is opposite to the spiral direction of the convex groove, and a strip-shaped flow guide groove is arranged below the side cover of the fan transmission case;
the fan assembly comprises a volute, the volute comprises an air outlet and an air inlet, the air inlet is formed in a side plate, the side plate is fixed to the side face of the volute through a connecting piece, the air outlet is formed in the tail end of the volute, an extending shell is arranged on the air outlet, and small holes are formed in the edge of the extending shell; the spiral case is internally provided with an impeller, the impeller is internally provided with a connecting shaft, the connecting shaft is detachably connected with the impeller, and the connecting shaft is in transmission connection with the motor through a rotating shaft.
Further, the high sealed fan transmission shaft still includes: and the built-in sealing rings are tightly sleeved at the sealing position of the motor input end of the fan transmission shaft body and the fan connecting end respectively.
Furthermore, the connecting piece is the bolt, 6 in total connecting pieces, and evenly distributed is in the whole body of curb plate.
Further, a temperature testing device is arranged on the extension shell.
Further, the number of the impellers is 3-12.
Has the advantages that: compared with the prior art, the utility model has compact structure and flat performance curve, changes the connecting mode of fixedly welding the shaft piece and the impeller in the past, sets the connecting shaft piece to be movably connected, and when the blade on the impeller is worn and needs to be replaced, the whole part does not need to be replaced, the shaft piece is kept, the material is saved, and the utilization rate is improved;
meanwhile, a temperature detection device is arranged at the air outlet, when the temperature in the fan is too high, other dangerous conditions such as explosion of the fan and the like can be caused, and after the temperature detection device is arranged, when the temperature reaches a dangerous value, an alarm works to inform workers of the coming overhaul or the shutdown;
the utility model discloses a transmission assembly sets up the screw thread on the transmission shaft to be provided with strip water conservancy diversion recess in fan transmission case side cap below, at the fan transmission shaft around the high-speed rotatory in-process in axle center, the grease that spills over will flow along the spiral line under the effect of centrifugal force strip water conservancy diversion recess, thereby realize through reforming transform transmission shaft structure that the guide spills over the grease and flow back inside transmission system, not only improve sealed effect, reduce the cost that the sealed pad of frequent change caused moreover.
Drawings
FIG. 1 is a schematic view of a centrifugal fan according to the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of the transmission assembly of FIG. 1;
FIG. 4 is an enlarged partial schematic view of FIG. 3;
fig. 5 is a schematic view of the fan assembly of fig. 1.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following specific examples.
A detachable centrifugal fan as shown in fig. 1 and 2, including motor 1, drive assembly 2, fan subassembly 3 and dust collecting equipment 4, the one end of drive assembly 2 with motor 1 connects, the other end of drive assembly 2 with the one end of fan subassembly 3 is connected, the other end of fan subassembly 3 is connected with dust collecting equipment 4, and wherein dust collecting equipment 4 adopts the conventional equipment in this field, before centrifugal fan, must install dust collecting equipment that dust collection efficiency is not less than 85% additional, reduces the flue gas dust content that gets into the fan to the life-span that the fan used is favorable to improving.
The structure of the transmission assembly is schematically shown in fig. 3 and 4. The transmission assembly includes:
a fan transmission shaft body 21, wherein a convex groove 23 (see an enlarged view of fig. 4) is arranged at a sealing part 22 at the motor input end of the fan transmission shaft body 21 along the rotation direction of a rotating shaft 26 of the fan transmission shaft body;
a groove 25 is formed in a sealing part 24 of a connecting end below the side cover of the fan transmission case, and the spiral direction of the groove 25 is opposite to the spiral direction of the convex groove 23;
and a strip-shaped flow guide groove 27 is arranged below the side cover of the fan transmission case.
The sealed department 22 of motor input shaft and the sealed department 24 of fan link are provided with the screw thread that the spiral direction is opposite respectively, the screw thread can be when pivot 26 is high-speed to rotate, because the effect of centrifugal force, the grease that spills over enters into in the pivot under the guide of screw thread, and because fan transmission case side cap below is provided with strip water conservancy diversion recess 27, the grease that spills over will continue to lubricate the pivot to the problem that current high sealed fan transmission shaft sealed effect is not good and sealed with high costs has been solved.
In order to further improve leakproofness, high sealed fan transmission shaft still includes: and built-in sealing rings (not shown) are tightly sleeved at the sealing position of the motor input end of the fan transmission shaft body and the fan connecting end respectively.
Such as the fan assembly shown in figure 5. The fan assembly comprises a volute casing 31, the volute casing 31 comprises an air outlet 35 and an air inlet 34, the air inlet 34 is arranged on a side plate 36, the side plate 36 is fixed on the side surface of the volute casing 31 through a connecting piece 38, the air outlet 35 is arranged at the tail end of the volute casing 31, an extension casing 351 is arranged on the air outlet 35, and a small hole is arranged at the edge of the extension casing 351; an impeller 32 is arranged in the volute casing 31, a connecting shaft 33 is arranged in the impeller 32, the connecting shaft 33 is detachably connected with the impeller 32, and the connecting shaft 33 is in transmission connection with the motor 1 through a rotating shaft 26.
Preferably, the connecting pieces 38 are bolts, the connecting pieces 38 are 6 in total and are uniformly distributed on the periphery of the side plate 36, the bolts are M8, elastic gaskets are arranged below the bolts, loss and looseness caused by vibration during operation of the fan are reduced, fastening force provided by the 6 bolts is enough for fixing the side plate 36 on the volute casing 31, meanwhile, the disassembly is convenient, and the disassembly and assembly time is reduced.
In addition, be provided with temperature test device on the extension shell 351, this temperature test device is connected with the siren electricity, and after the wind-warm syndrome on the air outlet 35 reached appointed numerical value, temperature test device detected this temperature, then sent a signal, received this signal and sent the police dispatch newspaper by the siren, and the maintenance personal comes to overhaul before calling, and this siren can be bee calling organ or set up in the computer end, is monitored by special personnel.
In addition, the position of the air outlet 34 may be 0 degree, 45 degrees, 135 degrees, 180 degrees, 225 degrees, or the like, which is generally 0 degree, that is, the position of the air outlet 34 is upward.
Meanwhile, the number of the impellers is 3-12, the impellers are arc-shaped, the blades are welded on the impellers and are arc-shaped, so that the air volume is stable, the performance is stable, the impellers and the blades are made of 16Mn steel, and the impellers are subjected to dynamic balance correction after being welded and formed, so that the operation is stable and reliable, the strength and the wear resistance are high, and the service life is long.
Compared with the prior art, the utility model has compact structure and flat performance curve, changes the connecting mode of fixedly welding the shaft piece and the impeller in the past, sets the connecting shaft piece to be movably connected, and when the blade on the impeller is worn and needs to be replaced, the whole part does not need to be replaced, the shaft piece is kept, the material is saved, and the utilization rate is improved;
meanwhile, a temperature detection device is arranged at the air outlet, when the temperature in the fan is too high, other dangerous conditions such as explosion of the fan and the like can be caused, and after the temperature detection device is arranged, when the temperature reaches a dangerous value, an alarm works to inform workers of the coming overhaul or the shutdown;
the utility model discloses a transmission assembly sets up the screw thread on the transmission shaft to be provided with strip water conservancy diversion recess in fan transmission case side cap below, at the fan transmission shaft around the high-speed rotatory in-process in axle center, the grease that spills over will flow along the spiral line under the effect of centrifugal force strip water conservancy diversion recess, thereby realize through reforming transform transmission shaft structure that the guide spills over the grease and flow back inside transmission system, not only improve sealed effect, reduce the cost that the sealed pad of frequent change caused moreover.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a detachable centrifugal fan which characterized in that: the dust removal device comprises a motor (1), a transmission assembly (2), a fan assembly (3) and dust removal equipment (4), wherein one end of the transmission assembly (2) is connected with the motor (1), the other end of the transmission assembly (2) is connected with one end of the fan assembly (3), and the other end of the fan assembly (3) is connected with the dust removal equipment (4);
the transmission assembly (2) comprises a fan transmission shaft body (21), and a convex groove (23) is formed in a sealing part (22) of the motor input end of the fan transmission shaft body (21) along the rotation direction of a rotating shaft (26) of the fan transmission shaft body; a groove (25) is formed in a sealing part (24) of a connecting end below the side cover of the fan transmission case, the spiral direction of the groove (25) is opposite to the spiral direction of the convex groove (23), and a strip-shaped flow guide groove (27) is formed below the side cover of the fan transmission case;
the fan assembly (3) comprises a volute (31), the volute (31) comprises an air outlet (35) and an air inlet (34), the air inlet (34) is arranged on a side plate (36), the side plate (36) is fixed on the side surface of the volute (31) through a connecting piece (38), the air outlet (35) is arranged at the tail end of the volute (31), an extension shell (351) is arranged on the air outlet (35), and small holes are formed in the edge of the extension shell (351); be provided with impeller (32) in spiral case (31), be provided with connecting axle (33) in impeller (32), connecting axle (33) and impeller (32) are detachable connection, connecting axle (33) are connected with motor (1) transmission through pivot (26).
2. A removable centrifugal ventilator according to claim 1 in which: the connecting pieces (38) are bolts, and the number of the connecting pieces (38) is 6, and the connecting pieces are uniformly distributed on the whole body of the side plate (36).
3. A removable centrifugal ventilator according to claim 1 in which: the extension shell (351) is provided with a temperature testing device.
4. A removable centrifugal ventilator according to claim 1 in which: the number of the impellers (32) is 3-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950028.XU CN211397966U (en) | 2019-06-24 | 2019-06-24 | Detachable centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950028.XU CN211397966U (en) | 2019-06-24 | 2019-06-24 | Detachable centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397966U true CN211397966U (en) | 2020-09-01 |
Family
ID=72223939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920950028.XU Active CN211397966U (en) | 2019-06-24 | 2019-06-24 | Detachable centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211397966U (en) |
-
2019
- 2019-06-24 CN CN201920950028.XU patent/CN211397966U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211397966U (en) | Detachable centrifugal fan | |
| CN209976886U (en) | Clamping groove type fan impeller | |
| CN210565231U (en) | Efficient noise reduction fan | |
| CN204984986U (en) | Centrifugal fan | |
| CN211648504U (en) | Novel centrifugal fan | |
| CN206682041U (en) | A kind of thick gas blower fan of the adjustable impeller of band | |
| CN215595953U (en) | Centrifugal fan used in central air conditioner or ventilation system | |
| CN210033947U (en) | Special impeller for kiln tail draught fan | |
| CN214247756U (en) | Centrifugal fan with dustproof function | |
| CN110529413A (en) | A kind of novel fan | |
| CN211715291U (en) | Cooling device for multistage compressor | |
| CN216278651U (en) | Large-scale axial fan wheel hub | |
| CN217999955U (en) | Detachable double-port fan hub cover | |
| CN211174699U (en) | Centrifugal ventilator | |
| CN211230975U (en) | Large-scale fan wheel hub structure with safety protection structure | |
| CN210565213U (en) | Centrifugal fan convenient to installation is used | |
| CN207864211U (en) | A kind of shockproof fiberglass centrifugal blower | |
| CN211082313U (en) | Centrifugal fan with from heat dissipation function | |
| CN210371247U (en) | High-efficient back bend centrifugal fan | |
| CN214887803U (en) | Efficient energy-saving fan convenient to maintain | |
| CN219587822U (en) | Shaft end sealing and isolating device for high-temperature flue gas centrifugal fan shell | |
| CN219176591U (en) | Novel wear-resistant fan | |
| CN213116747U (en) | High-temperature fan for calcium chloride granulation system | |
| CN208634079U (en) | A kind of dedicated frequency control high pressure centrifugal ventilator of flour processing | |
| CN103527502A (en) | High pressure fluidization fan with alarming function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201117 Address after: Group 8, Wenjun village, Xingfu street, Gangzha District, Nantong City, Jiangsu Province, 226000 Patentee after: Nantong Hengrong roots blower Co., Ltd Address before: 226000 No.6, Bayi Industrial Park, Tiansheng Road, Gangzha District, Nantong City, Jiangsu Province Patentee before: Jiangsu Huanyu Fan Technology Co.,Ltd. |