CN109779930A - The motor radiating mechanism of firefighting fan - Google Patents
The motor radiating mechanism of firefighting fan Download PDFInfo
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- CN109779930A CN109779930A CN201711103645.8A CN201711103645A CN109779930A CN 109779930 A CN109779930 A CN 109779930A CN 201711103645 A CN201711103645 A CN 201711103645A CN 109779930 A CN109779930 A CN 109779930A
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- air duct
- interior air
- motor
- interior
- wall
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Abstract
The present invention provides a kind of motor radiating mechanisms of firefighting fan, belong to field of mechanical technique.It solves the problems, such as that existing blower assembling is inconvenient.In the present invention, the impeller and motor that firefighting fan includes outer air duct and is set in exogenous wind cylinder, motor radiating mechanism includes the interior air duct in outer air duct, motor is fixed in interior air duct, electric machine main shaft front end and impeller are connected, annular vent blade is additionally provided in interior air duct, exhausting blade and electric machine main shaft rear end are connected, there is annular sealing portion on interior air duct leading inside wall, sealing covers outside electric machine main shaft front end, two escape pipes are additionally provided in outer air duct, two escape pipes are located at interior air duct two sides, escape pipe and interior air duct are connected, opposite both ends are connected to interior air duct inner cavity on two escape pipes, air inlet pipe is bolted in opposite both ends on two escape pipes, outer air duct is stretched out at opposite both ends in two air inlet pipe, air inlet pipe is fixedly connected with outer air duct.The present invention has the advantages that easy to assembly.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of firefighting fan, especially a kind of motor radiating of firefighting fan
Mechanism.
Background technique
High-temp. smoke discharging pump for fire fighting is a kind of ventilation blower that high-temperature flue gas is discharged in fire-fighting, it is desirable that presses GA211-2009
Firefighting fan high temperature resistant test method, can be continuous operation 100 minutes or more under 400 DEG C of hot conditions, so its necessary electromotor
It is necessary for heat resisting motor, and special electromotor cooling system must be arranged.
A kind of existing high-temp. smoke discharging pump for fire fighting intelligent high temperature smoke exhaust fan as disclosed in chinese patent library
[application number: 201510293543.1；Application publication number: 104948479 A of CN], including in shell, setting inside the shell
Cylinder, the motor being arranged in inner cylinder and the smoke evacuation fan blade connecting with motor shaft one end, the outer surface of outer cover are additionally provided with fireprotection layer；
It is connected between the fireprotection layer and inner cylinder by cooling wind blast pipe and cooling wind discharge pipe.
In actual product, the other end of motor shaft is fixed with exhausting blade.In use, exhausting blade follows motor shaft to turn
Dynamic, external cold air is entered by cooling wind blast pipe, and is discharged by cooling wind discharge pipe, to take away the high temperature on motor surface.
Above-mentioned blower has a problem that: cooling wind discharge pipe and cooling wind blast pipe are individually solid with inner cylinder and shell
It is fixed, cause entire assembling process relatively complicated.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of motor radiating of firefighting fan is proposed
The technical issues of mechanism, solution is how to improve property easy to assembly.
Object of the invention can be realized by the following technical scheme: the motor radiating mechanism of firefighting fan, firefighting fan
Impeller and motor including outer air duct and in exogenous wind cylinder, this motor radiating mechanism include horizontal be set to inside outer air duct
Interior air duct, the motor is fixed in interior air duct, the front-end of spindle of the motor stretch out in air duct and with the leaf
Wheel is connected, and exhausting blade in a ring is additionally provided in the interior air duct, and the rear end of exhausting blade and the main shaft of motor is mutually solid
Even, which is characterized in that there is the sealing annularly protruded, and sealing and interior wind on the leading inside wall of the interior air duct
Cylinder is an integral structure, and the sealing covers outside the front end of the main shaft of motor, and the main shaft side wall of motor and sealing
It is formed and is sealed by annular oil seal between inner wall；Two escape pipes are additionally provided in the outer air duct, two escape pipes are in straight tube-like
And position faces, escape pipe described in two is located at interior air duct two sides, and two escape pipes are connected with the interior air duct,
Opposite both ends are connected to the inner cavity of the interior air duct on two escape pipes, are bolted in opposite both ends on two escape pipes
In the air inlet pipe of straight tube-like, outer air duct is stretched out at opposite both ends in two air inlet pipe, and two air inlet pipe are fixedly connected with outer air duct,
Vertical range between interior air duct lateral wall and exogenous wind medial wall of the tube is 10cm~20cm.
When actual installation, assembling is connected in outdoor, and by pipeline with interior.
In use, exhausting blade follows the main axis of motor, external cold air passes sequentially through air inlet pipe and an air outlet pipe entrance
Into interior air duct, cold air is contacted with motor realizes radiating and cooling, and cold air is finally from the right end of interior air duct under exhausting blade drainage
Mouth discharge.
Sealing and interior air duct are an integral structure, and are formed between sealing and electric machine main shaft by annular oil seal close
Envelope makes interior air duct front end be in completely enclosed state, can be effectively spaced apart high-temperature gas and interior air duct inner cavity in this way, to avoid
High-temperature gas is contacted with motor, to accelerate the radiating efficiency of motor, improves the job stability of blower.
In this configuration, the gas pipeline as composed by escape pipe and air inlet pipe not only plays the role of gas transmission, but also plays connection
The effect of interior air duct and outer air duct has just been completed at the same time the positioning of interior air duct when installing gas pipeline in this way, is dissipated with shortening this
The assembling procedure of heat engine structure, to improve the property easy to assembly of cooling mechanism.
In the motor radiating mechanism of above-mentioned firefighting fan, runs through on the side wall of the interior air duct and offer connection
Hole, there are two connecting holes, and escape pipe described in two is threaded through respectively in two connecting holes, on the lateral wall of escape pipe described in two
Annular groove is offered, high-temperature resistant seal ring, and the lateral wall of high-temperature resistant seal ring and company are equipped in the annular groove
Connect the hole wall tight abutment in hole.
Under the action of high-temperature resistant seal ring, make to form reliable sealing between escape pipe and interior air duct, further to keep away
Exempt from high temperature hot gas to enter in interior air duct, stablizes the purpose for improving motor radiating efficiency and realize.
In the motor radiating mechanism of above-mentioned firefighting fan, there is gear on the lateral wall of the rear end of the interior air duct
Ring, and baffle ring and interior air duct are coaxially disposed, the front end face of the baffle ring are tapered guide surface, and the guide surface
Diameter is gradually increased from the front to the back.
Under the guidance of guide surface, flow high-temperature gas to the direction far from interior air duct, to further avoid high temperature
Gas enters in interior air duct, then further strengthens the radiating efficiency of motor.
It is cased with spring in the motor radiating mechanism of above-mentioned firefighting fan, outside escape pipe described in two, and spring
Both ends offset with interior air duct outer wall and outer air duct inner wall respectively.
By the elastic deformation of spring come the vibration generated when buffer motor work, it is transmitted to reduce above-mentioned vibration
The junction of escape pipe and air inlet pipe is stably connected with escape pipe and air inlet pipe, to improve the structural stability of this cooling mechanism.
In the motor radiating mechanism of above-mentioned firefighting fan, is offered in the front end side wall of the main shaft of the motor and be in
The locating slot of annular, the locating slot include the two sidewalls of position face and the bottom wall between two sidewalls, the annular oil
Envelope is set in locating slot, and the lateral wall of the annular oil seal and the inner sidewall of the sealing offset, and the both ends of annular oil seal
Face offsets with the two sidewalls of locating slot respectively.
Under the action of locating slot, by annular oil seal stable position, it is ensured that consistently formed between electric machine main shaft and sealing
Reliable sealing separates high-temperature gas and motor with stabilization, stablizes the purpose for improving motor radiating efficiency and realizes.
In the motor radiating mechanism of above-mentioned firefighting fan, the interior air duct and sealing be internal iron sheet, in
Sandwich composed by portion's heat preservation rock and external iron sheet.
Using above-mentioned design, interior air duct and sealing is made to be provided simultaneously with hardness and thermal insulation property, to effectively prevent high
Heat contained by wet body enters in interior air duct, stablizes the purpose for improving motor radiating efficiency and realizes.
Compared with prior art, the motor radiating mechanism of this firefighting fan has the advantage that
1, sealing and interior air duct are an integral structure, and are formed between sealing and electric machine main shaft by annular oil seal close
Envelope makes interior air duct front end be in completely enclosed state, can be effectively spaced apart high-temperature gas and interior air duct inner cavity in this way, to avoid
High-temperature gas is contacted with motor, to accelerate the radiating efficiency of motor, improves the job stability of blower.
2, the gas pipeline as composed by escape pipe and air inlet pipe not only plays the role of gas transmission, but also plays in connection air duct and outer
The effect of air duct has just been completed at the same time the positioning of interior air duct when installing gas pipeline in this way, to shorten the group of this cooling mechanism
Process is filled, to improve the property easy to assembly of cooling mechanism.
3, under the guidance of guide surface, flow high-temperature gas to the direction far from interior air duct, to further avoid height
Wet body enters in interior air duct, then further strengthens the radiating efficiency of motor.
4, the vibration generated when buffer motor work by the elastic deformation of spring, to reduce above-mentioned vibration transmitting
To the junction of escape pipe and air inlet pipe, it is stably connected with escape pipe and air inlet pipe, to improve the stable structure of this cooling mechanism
Property.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this firefighting fan.
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A.
Fig. 3 is the right side structural representation of this firefighting fan.
Fig. 4 is the schematic cross-sectional view of interior air duct.
In figure, 1, outer air duct；2, impeller；3, motor；4, interior air duct；4a, sealing；4b, iron sheet；4c, heat preservation rock；
4d, baffle ring；4d1, guide surface；5, exhausting blade；6, air inlet pipe；7, escape pipe；8, spring；9, annular oil seal；10, high temperature resistant is close
Seal.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1 to Figure 3, firefighting fan includes outer air duct 1, impeller 2 and motor 3, wherein and outer air duct 1 is in hollow form,
Motor 3 and impeller 2 are set in exogenous wind cylinder 1, and impeller 2 is set to the front side of motor 3.
This motor radiating mechanism is made of interior air duct 4, exhausting blade 5, air inlet pipe 6, escape pipe 7, spring 8 etc..
Wherein, interior air duct 4 is in hollow form, which is arranged horizontally in outer air duct 1, and at this point, interior air duct
4 is conllinear with the central axis of both outer air ducts 1.As shown in Figure 1, impeller 2 is set to interior 4 front side of air duct, motor 3 passes through base (not
Diagram) it is fixed in interior air duct 4, and the front-end of spindle of motor 3 stretches out interior air duct 4 and is connected with impeller 2.Exhausting blade 5 is in ring
Shape, the exhausting blade 5 are set in interior air duct 4 and are located at the rear side of motor 3.Exhausting blade 5 is set in the rear end of the main shaft of motor 3
Outside, and the main shaft of exhausting blade 5 and motor 3 is fixedly connected with.
As shown in Figure 1, have the sealing 4a that annularly protrudes on the leading inside wall of interior air duct 4, sealing 4a and interior
Air duct 4 is coaxially disposed, and sealing 4a and interior air duct 4 are an integral structure.Sealing 4a is covered in the front end of the main shaft of motor 3
Outside, and between the main shaft side wall of motor 3 and the inner wall of sealing 4a sealing is formed by annular oil seal 9.Specifically, such as Fig. 1
With shown in Fig. 2, locating slot in a ring is offered in the front end side wall of the main shaft of motor 3, which includes position face
Two sidewalls and the bottom wall between two sidewalls, and the two sidewalls of locating slot are along the axial direction distribution of interior air duct 4；Annular oil seal 9 is set
In in locating slot, the inner sidewall of the lateral wall and sealing 4a of the annular oil seal 9 offsets, and the both ends of the surface difference of annular oil seal 9
It offsets with the two sidewalls of locating slot, by 9 stable position of annular oil seal, it is ensured that formed between sealing 4a and the main shaft of motor 3
Reliable sealing.
Two escape pipes 7 are additionally provided in outer air duct 1, two escape pipes 7 are faced in straight tube-like and position.It is preferred that escape pipe 7
It is arranged vertically in outer air duct 1.Two escape pipes 7 are located at interior 4 two sides of air duct, and two escape pipes 7 are solid with interior air duct 4
Even, and both ends opposite on two escape pipes 7 are connected to the inner cavity of interior air duct 4.Specifically, run through on the side wall of interior air duct 4
Connecting hole is offered, there are two connecting holes, and two escape pipes 7 are threaded through respectively in two connecting holes；On the lateral wall of two escape pipes 7
Annular groove is offered, high-temperature resistant seal ring 10, and the lateral wall of high-temperature resistant seal ring 10 and connection are equipped in annular groove
The hole wall tight abutment in hole.In the present embodiment, preferably escape pipe 7 and interior air duct 4 is fixedly connected with by welding.Naturally,
Escape pipe 7 and interior air duct 4 are fixedly connected with also possible by way of tight fit.
As shown in Figure 1, the air inlet pipe 6 in straight tube-like is bolted in both ends opposite on two escape pipes 7, two air inlet pipe 6
Upper opposite both ends are successively stretched out escape pipe 7 and outer air duct 1 and are located at outside outer air duct 1, and two air inlet pipe 6 with outer air duct
1 is fixedly connected with.It is preferred that air inlet pipe 6 and outer air duct 1 are fixedly connected with by welding.It further illustrates, is cased with outside two escape pipes 7
Spring 8, and the both ends of spring 8 offset with interior 4 outer wall of air duct and 1 inner wall of outer air duct respectively.Delayed by the elastic deformation of spring 8
The vibration generated when motor 3 works is rushed to use to reduce the junction that above-mentioned vibration is transmitted to escape pipe 7 and air inlet pipe 6
Tracheae 7 and air inlet pipe 6 are stably connected with, to improve the structural stability of this cooling mechanism.
As shown in figures 1 and 3, interior air duct 4 and sealing 4a are internal iron sheet 4b, middle part heat preservation rock 4c and external iron
Sandwich composed by skin 4b makes interior air duct 4 and sealing 4a be provided simultaneously with hardness and thermal insulation property.The rear end of interior air duct 4
Lateral wall on there is baffle ring 4d, and baffle ring 4d and interior air duct 4 are coaxially disposed.The front end face of baffle ring 4d is tapered guide surface
4d1, and the diameter of guide surface 4d1 is gradually increased from the front to the back.
Vertical range between 1 inner sidewall of interior 4 lateral wall of air duct and outer air duct is 10cm~20cm, and preferably this distance is
15cm。
When actual installation, assembling is connected in outdoor, and by pipeline with interior.
In use, exhausting blade 5 follows the main axis of motor 3, external cold air passes sequentially through air inlet pipe 6 and escape pipe 7
It enters in interior air duct 4, cold air is contacted with motor 3 realizes radiating and cooling, and cold air is finally from interior air duct under the drainage of exhausting blade 5
4 right output port discharge.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (5)
1. the motor radiating mechanism of firefighting fan, the impeller that firefighting fan includes outer air duct (1) and is set in exogenous wind cylinder (1)
(2) and motor (3), this motor radiating mechanism include horizontal interior air duct (4) for being set to outer air duct (1) inside, the motor (3)
It being fixed in interior air duct (4), the front-end of spindle of the motor (3) stretches out interior air duct (4) and is connected with the impeller (2),
Exhausting blade (5) in a ring, and the rear end of exhausting blade (5) and the main shaft of motor (3) are additionally provided in the interior air duct (4)
It is fixedly connected with, which is characterized in that there is the sealing (4a) annularly protruded on the leading inside wall of the interior air duct (4), and
Sealing (4a) and interior air duct (4) are an integral structure, and the sealing (4a) covers outside the front end of the main shaft of motor (3),
And sealing is formed by annular oil seal (9) between the main shaft side wall of motor (3) and the inner wall of sealing (4a)；The outer air duct
(1) it is additionally provided with two escape pipes (7) in, two escape pipes (7) are faced in straight tube-like and position, escape pipe described in two (7) point
Not Wei Yu interior air duct (4) two sides, and two escape pipes (7) with the interior air duct (4) be connected, it is opposite on two escape pipes (7)
Both ends are connected to the inner cavity of the interior air duct (4), are bolted in opposite both ends in straight tube-like on two escape pipes (7)
Air inlet pipe (6), opposite both ends are stretched out outer air duct (1) in two air inlet pipe (6), and two air inlet pipe (6) with outer air duct (1) phase
It is connected, the vertical range between interior air duct (4) lateral wall and outer air duct (1) inner sidewall is 10cm~20cm.
2. the motor radiating mechanism of firefighting fan according to claim 1, which is characterized in that the interior air duct (4)
Through connecting hole is offered on side wall, there are two connecting holes, and escape pipe described in two (7) is threaded through respectively in two connecting holes,
Annular groove is offered on the lateral wall of escape pipe described in two (7), is equipped with high-temperature resistant seal ring in the annular groove
And the hole wall tight abutment of the lateral wall of high-temperature resistant seal ring (10) and connecting hole (10),.
3. the motor radiating mechanism of firefighting fan according to claim 1 or 2, which is characterized in that the interior air duct (4)
Rear end lateral wall on there is baffle ring (4d), and baffle ring (4d) and interior air duct (4) are coaxially disposed, before the baffle ring (4d)
End face is tapered guide surface (4d1), and the diameter of the guide surface (4d1) is gradually increased from the front to the back.
4. the motor radiating mechanism of firefighting fan according to claim 1 or 2, which is characterized in that escape pipe described in two
(7) it is cased with outside spring (8), and the both ends of spring (8) offset with interior air duct (4) outer wall and outer air duct (1) inner wall respectively.
5. the motor radiating mechanism of firefighting fan according to claim 1 or 2, which is characterized in that the motor (3)
Locating slot in a ring is offered in the front end side wall of main shaft, the locating slot include position face two sidewalls and be located at two sidewalls
Between bottom wall, the annular oil seal (9) is set in locating slot, the lateral wall of the annular oil seal (9) and the sealing
The inner sidewall of (4a) offsets, and the both ends of the surface of annular oil seal (9) offset with the two sidewalls of locating slot respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711103645.8A CN109779930A (en) | 2017-11-10 | 2017-11-10 | The motor radiating mechanism of firefighting fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711103645.8A CN109779930A (en) | 2017-11-10 | 2017-11-10 | The motor radiating mechanism of firefighting fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109779930A true CN109779930A (en) | 2019-05-21 |
Family
ID=66485340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711103645.8A Withdrawn CN109779930A (en) | 2017-11-10 | 2017-11-10 | The motor radiating mechanism of firefighting fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321020A (en) * | 2022-03-11 | 2022-04-12 | 新乡西玛鼓风机股份有限公司 | High-temperature-resistant fan |
-
2017
- 2017-11-10 CN CN201711103645.8A patent/CN109779930A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321020A (en) * | 2022-03-11 | 2022-04-12 | 新乡西玛鼓风机股份有限公司 | High-temperature-resistant fan |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190521 |