CN114922831A - Motor shaft extension shaft sleeve for industrial direct-connection fan - Google Patents
Motor shaft extension shaft sleeve for industrial direct-connection fan Download PDFInfo
- Publication number
- CN114922831A CN114922831A CN202210206958.0A CN202210206958A CN114922831A CN 114922831 A CN114922831 A CN 114922831A CN 202210206958 A CN202210206958 A CN 202210206958A CN 114922831 A CN114922831 A CN 114922831A
- Authority
- CN
- China
- Prior art keywords
- shaft
- motor
- fan
- impeller
- sleeve
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 241000886569 Cyprogenia stegaria Species 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A motor shaft extension shaft sleeve for an industrial direct-coupled fan comprises a motor shaft, an extension shaft sleeve, a shaft seal, a heat-radiating impeller, an impeller hub, a taper sleeve, an impeller, a casing rear side plate and a motor, wherein the extension shaft sleeve is assembled on the motor shaft, an inner hole of the extension shaft sleeve is matched with the outer diameter of the motor shaft, and the outer diameter of the extension shaft sleeve is used as an assembly surface of the impeller hub, the seal, a cooling disc and the like and is used as an extension of a motor driving shaft; the heat radiation impeller is arranged between the shaft seal and the motor, the impeller hub and the extension shaft sleeve of the centrifugal fan are connected and fixed by the taper sleeve, and the impeller positioned in the casing is arranged on the motor shaft. The structure of the fan is simplified, the overall design and manufacturing cost of the fan are reduced, the floor area of the fan is reduced, the overall axial space size of the fan is particularly reduced, the fan maintenance cost is lower, and therefore the fan has a very good economic value.
Description
Technical Field
The invention relates to the field of industrial fans with impellers directly driven by motor shafts, in particular to a motor shaft extension shaft sleeve for an industrial direct-connection fan.
Background
The impeller of the industrial centrifugal fan is limited by temperature conditions in a direct connection transmission mode of directly driving by a motor shaft. The ambient temperature of the normal motor is not higher than 40 ℃. When the medium temperature of the centrifugal fan is higher than 60 ℃, if the impeller is directly installed on the shaft of the motor, the high temperature of the medium is transferred to the motor shaft through the hub of the impeller by means of heat conduction. Simultaneously because under this kind of drive mode, the motor is less apart from fan casing distance, and medium temperature also can influence the motor through heat radiation. The effects of heat conduction and radiation can be further conducted into the motor, causing high temperatures to damage the motor. The problem of high temperature can be solved by special technologies such as installing a cooling disc on a motor shaft. But the mounting of the cooling disc requires sufficient axial space. The existing motors are generally manufactured according to the related design and manufacturing standards of the motors, and the shaft elongation of the motors is standard length. Due to the use conditions of the high-temperature fan, fan components mounted on a motor shaft comprise an impeller hub, a shaft seal with a volute, a fan cooling disc and the like, and the components can occupy a lot of axial space, but the motor shaft does not have enough axial space. An elongated impeller hub may be used to supplement the axial mounting space, however, the design of such an elongated hub requires a significant amount of effort to install and remove the impeller. The difficulty is increased in the production and assembly process of the fan, and the difficulty is brought to the maintenance of the fan in use.
Disclosure of Invention
The invention relates to a motor shaft extension shaft sleeve for an industrial direct-connection fan, which is specially used for an industrial fan adopting a motor shaft to directly drive an impeller and is particularly suitable for a high-temperature fan.
A motor shaft extension shaft sleeve for an industrial direct-coupled fan comprises a motor shaft, an extension shaft sleeve, a shaft seal, a heat-radiating impeller, an impeller hub, a taper sleeve, an impeller, a casing rear side plate and a motor, and is characterized in that the extension shaft sleeve is assembled on the motor shaft, an inner hole of the extension shaft sleeve is matched with the outer diameter of the motor shaft, and the outer diameter of the extension shaft sleeve is used as an assembling surface of the impeller hub, the seal, a cooling disc and the like and is used as an extension of a motor driving shaft; the heat radiation impeller is arranged between the shaft seal and the motor, the impeller hub and the extension shaft sleeve of the centrifugal fan are connected and fixed by the taper sleeve, and the impeller positioned in the casing is arranged on the motor shaft.
Furthermore, the extension shaft sleeve is connected with the hub in a taper sleeve mode, and locking or dismounting operation is carried out between the taper sleeve and the hub through bolts.
Adopt the detachable mode installation extension axle sleeve on the motor shaft, prolonged the axial length of motor shaft to increased the axial distance in space, for the cooling part that carries out forced cooling to the motor provides installation physical space, the cooling part is installed between airtight part and motor, uses taper sleeve to connect the wheel hub and the extension axle sleeve of fixing centrifugal fan simultaneously, will be located the impeller mounting in the casing on motor shaft 1, realizes the motor directly to link direct drive fan wheel like this.
The extension shaft sleeve enables the high-temperature fan to adopt a driving mode of direct connection of the motor, a transmission shaft with a bearing is not needed to be additionally used, the structure of the fan is simplified through belt transmission or other transmission modes such as a shaft coupling, the overall design and manufacturing cost of the fan are reduced, the occupied area of the fan is reduced, the overall axial space size of the fan is particularly reduced, and the fan is lower in maintenance cost because transmission parts except the motor are omitted, so that the high-temperature fan brings very good economic value.
The extension axle sleeve has increased the axial space of motor shaft, consequently can use taper sleeve to connect and fix centrifugal fan's wheel hub and extension axle sleeve, safe firm installs the impeller on the motor shaft with the mode of dismantling easily for the dismouting maintenance work of impeller becomes easy afterwards.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
The part names represented by the numbers and the functions thereof are listed in the following table:
| reference numerals | Name (R) | |
| 1 | Motor shaft | The motor is electrified and the rear shaft rotates |
| 2 | Extension axle sleeve | Shaft sleeve mounted on motor shaft to extend |
| 3 | Shaft seal | The sealing is kept in the casing of the centrifugal fan, and the medium in the casing of the fan can not leak or has |
| 4 | Heat dissipation impeller | The small impeller stirs the surrounding air along with the rotation of the motor shaft, and disperses the heat of heat conduction and heat radiation on the motor shaft. |
| 5 | Impeller hub | Bear the weight of the impeller, drive the impeller to rotate together with the motor drive shaft and the |
| 6 | Taper sleeve | Connect impeller wheel hub and extension axle sleeve, realize the fastening between impeller wheel hub and the extension axle sleeve to be convenient for dismantle the |
| 7 | Impeller wheel | As a rotating part of the centrifugal fan, the increase of the flow speed and the pressure of a medium in the fan is realized |
| 8 | Rear side plate of casing | Is a component of the centrifugal fan shell and forms the shell together with other components of the |
| 9 | Electrical machine | As rotary power of centrifugal fan |
Fig. 2 shows three fan configurations with drive connection, fig. 2a shows a fan configuration with direct drive, fig. 2b shows a fan configuration with a coupling drive, and fig. 2c shows a fan configuration with a belt drive.
The specific implementation mode is as follows: the invention uses the extension shaft sleeve 2 between the motor shaft 1 and the hub 5 as the middle piece for bearing the impeller 7, so that the motor shaft 1 is extended along the shaft end direction, thus the shaft 1 of the motor 9 has enough axial space, and the heat dissipation impeller 4 can be arranged on the motor shaft 1 to perform sufficient heat dissipation around the motor 9.
The extension shaft sleeve 2 enables the high-temperature fan to adopt a driving mode (figure 2 a) of direct connection of a motor, a transmission shaft with a bearing is not needed to be additionally used, and other transmission modes such as a belt (figure 2 c) or a shaft coupling (figure 2 b) are adopted. The industrial high-temperature fan with the direct-connection driving structure simplifies the structure of the fan, reduces the overall design and manufacturing cost of the fan, reduces the occupied area of the fan, and particularly reduces the overall axial space size of the fan. And, because the transmission part outside the motor has been saved, the fan maintenance cost is lower, therefore this patent can bring very good economic value.
In the production process of the fan, the assembly sequence of each part on the motor shaft 1 is as follows in sequence: the heat dissipation impeller comprises an extension shaft sleeve 2, a heat dissipation impeller 4, a seal 3, an impeller 7 (comprising a hub 5) and a taper sleeve 6.
The maintenance in the fan use, if need dismantle the impeller, then only need dismantle following part in proper order: a taper sleeve 6 and an impeller 7 (comprising a hub 5).
Claims (2)
1. A motor shaft extension shaft sleeve for an industrial direct-coupled fan comprises a motor shaft, an extension shaft sleeve, a shaft seal, a heat-radiating impeller, an impeller hub, a taper sleeve, an impeller, a casing rear side plate and a motor, and is characterized in that the extension shaft sleeve is assembled on the motor shaft, an inner hole of the extension shaft sleeve is matched with the outer diameter of the motor shaft, and the outer diameter of the extension shaft sleeve is used as an assembling surface of the impeller hub, the seal, a cooling disc and the like and is used as an extension of a motor driving shaft; the heat radiation impeller is arranged between the shaft seal and the motor, the impeller hub and the extension shaft sleeve of the centrifugal fan are connected and fixed by the taper sleeve, and the impeller positioned in the casing is arranged on the motor shaft.
2. The motor shaft extension sleeve for the industrial direct-coupled blower fan as claimed in claim 1, wherein the extension sleeve is connected with the hub in a taper sleeve manner, and the taper sleeve and the hub are locked or disassembled through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210206958.0A CN114922831A (en) | 2022-03-04 | 2022-03-04 | Motor shaft extension shaft sleeve for industrial direct-connection fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210206958.0A CN114922831A (en) | 2022-03-04 | 2022-03-04 | Motor shaft extension shaft sleeve for industrial direct-connection fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114922831A true CN114922831A (en) | 2022-08-19 |
Family
ID=82804685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210206958.0A Pending CN114922831A (en) | 2022-03-04 | 2022-03-04 | Motor shaft extension shaft sleeve for industrial direct-connection fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114922831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788944A (en) * | 2023-01-16 | 2023-03-14 | 中国电建集团透平科技有限公司 | Large-scale wind-tunnel fan drive shafting structure |
-
2022
- 2022-03-04 CN CN202210206958.0A patent/CN114922831A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788944A (en) * | 2023-01-16 | 2023-03-14 | 中国电建集团透平科技有限公司 | Large-scale wind-tunnel fan drive shafting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114922831A (en) | Motor shaft extension shaft sleeve for industrial direct-connection fan | |
| CN214742162U (en) | Centrifugal fan for medium-low temperature gas using transmission set self-cooling device | |
| CN219012901U (en) | Centrifugal fan convenient to dismantle | |
| CN216872972U (en) | Magnetic suspension vapor compressor | |
| CN215011298U (en) | Heat abstractor for track door production control system | |
| CN214092368U (en) | Axial flow fan with rotor blades and static front guide blades in length-to-length staggered distribution | |
| CN109372769A (en) | It is a kind of to carry formula hot air circulation blower surely | |
| CN209472502U (en) | Motor and gas suspension fluid machines based on novel cooling structure | |
| CN112283128A (en) | Cooling and ventilating structure of main helium fan motor and main helium fan motor | |
| CN210724472U (en) | Motor cooling device | |
| CN112343837A (en) | Axial flow fan with rotor blades and static front guide blades in length-to-length staggered distribution | |
| CN210693739U (en) | Rare earth permanent magnet disc type motor for unmanned aerial vehicle | |
| CN2790026Y (en) | Wind self-cooling magnetic drvier | |
| RU2329171C1 (en) | Power plant cooling device (versions) | |
| CN110611412A (en) | Rare earth permanent magnet disc type motor for unmanned aerial vehicle | |
| CN111005886A (en) | Belt drive circulating fan | |
| CN111425415A (en) | Fan | |
| CN207073474U (en) | Fan and motor | |
| CN211599055U (en) | Water-cooling circulating fan for furnace | |
| KR102573356B1 (en) | Structure of Fan Shroud | |
| CN110966240A (en) | High-temperature-resistant centrifugal fan | |
| CN211599054U (en) | Belt drive circulating fan | |
| CN216929746U (en) | Wheel hub motor and electric vehicle | |
| CN216812197U (en) | High-speed centrifugal blower | |
| CN219227374U (en) | Heat dissipation mechanism of industrial fan motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220819 |