CN205001231U - Draught fan - Google Patents
Draught fan Download PDFInfo
- Publication number
- CN205001231U CN205001231U CN201520746706.2U CN201520746706U CN205001231U CN 205001231 U CN205001231 U CN 205001231U CN 201520746706 U CN201520746706 U CN 201520746706U CN 205001231 U CN205001231 U CN 205001231U
- Authority
- CN
- China
- Prior art keywords
- draught fan
- transmission shaft
- motor
- blower housing
- impeller
- 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
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Abstract
The utility model discloses a draught fan, including draught fan casing, motor, draught fan impeller and pivot, the draught fan casing is equipped with air intake and air outlet, draught fan upper portion is arranged in to the motor, the draught fan impeller is arranged in the draught fan casing, motor lateral part rigid coupling transmission shaft one, the impeller in draught fan is connected to the one end of pivot, and the other end of pivot stretches out draught fan casing lateral part and forms transmission shaft no. 2, and this transmission shaft no. 2 is connected with transmission shaft no. 1 through drive mechanism to drive draught fan rotating impeller, draught fan impeller side rigid coupling is close to in the pivot has the location disc, and should fix a position disc excircle week side rigid coupling has at least four smooth pearls, the annular has been offered corresponding to this location disc position to the draught fan casing, what smooth pearl and this annular inner wall were laminated mutually arranges in this annular. The utility model discloses simple structure, motor locate the draught fan outside for easy maintenance, the draught fan flabellum is fixed through the location disc, is difficult for rocking, and the working property is stable.
Description
Technical field
The utility model belongs to mechanical engineering field, especially relates to a kind of blower fan.
Background technique
In existing blower fan, motor is generally placed in Blower Housing together with fan leaf.But because motor can produce a large amount of heats in the process of work, and not easily distribute because it is placed in housing the heat making it produce, thus causing under long-term high-temperature condition, motor is easy to be damaged, thus blower fan is shut down.And be placed in by motor in housing, housing all will be taken apart and just can carry out by maintenance when making motor break down, and operates slightly loaded down with trivial details.And for motor in the process driving fan leaf to rotate, because flabellum is not by fixing, when rotating speed is larger, flabellum easily rocks, and can affect the working efficiency of blower fan on the one hand; On the other hand, rocking of flabellum can drive blower fan to rock, thus produces larger noise.
Model utility content
The utility model, in order to overcome the deficiencies in the prior art, provides the blower fan that a kind of structure is simple, easy to maintenance, can prevent flabellum from rocking.
To achieve these goals, the utility model is by the following technical solutions: a kind of blower fan, comprise Blower Housing, motor, draught fan impeller and rotating shaft, described Blower Housing is provided with intake grill and exhaust outlet, described motor is placed in blower fan top, described draught fan impeller is placed in Blower Housing, the affixed transmission shaft one of described motor sidepiece, one end of described rotating shaft is connected to draught fan impeller, the other end of rotating shaft stretches out Blower Housing sidepiece and forms transmission shaft two, this transmission shaft two is connected with transmission shaft one by driving mechanism, rotate to drive draught fan impeller, a safety cover is covered with outside described transmission shaft and driving mechanism, this safety cover is dismountable is connected to Blower Housing and motor sidewall, described rotating shaft is connected with positioning disc near draught fan impeller side, this positioning disc outer circumferential sides is connected with at least four sliding pearls, described Blower Housing corresponds to this positioning disc position and offers annular groove, what described sliding pearl and this annular groove inwall fitted is placed in this annular groove.
Further, be provided with four lower margins bottom described Blower Housing, described ground foot bottom is set to antivibration pad, the setting of four lower margins, make landing of blower fan more stable, and the bottom of lower margin is provided with antivibration pad, can alleviate noise during blower fan work.
Further, described driving mechanism is belt, installs and dismantle very convenient.
In sum, the utility model has the following advantages: this blower fan structure is simple, and work component are few, cost-saving, and operating noise is little.Blower fan outside is located at by motor, easy to maintenance and not fragile; By the setting of positioning disc, prevent from shaking in draught fan impeller working procedure, stable work in work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is B place enlarged view in Fig. 1.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, clear, complete description is carried out to the technological scheme in the utility model embodiment.
As shown in Figure 1-2, a kind of blower fan, comprises Blower Housing 1, motor 2, draught fan impeller 3 and rotating shaft 4, described motor 2 is placed in the top of Blower Housing 1, be fixed on Blower Housing 1 by devices such as nuts, thus blower fan work time motor can not be subjected to displacement, and keep in repair time convenient disassembly.Be intake grill on the left of Blower Housing, right side is exhaust outlet.Described draught fan impeller 3 is connected to a wherein end of rotating shaft 4, and is placed in Blower Housing 1 and closes on intake grill position, and the other one end as rotating shaft 4 is then stretched out Blower Housing 1 sidepiece and formed transmission shaft 2 41.A transmission shaft 1 is connected with on the right side of motor 2, connected by driving mechanism 5 between this transmission shaft 1 and transmission shaft 2 41, thus when transmission shaft 1 rotates, just drive transmission shaft 2 41 to rotate by driving mechanism 5, thus draught fan impeller 3 is driven to rotate.Driving mechanism 5 can be set to belt, and installing and dismantle all very convenient, certainly, also can be other transmission device beyond belt.
Shake when telling rotation for preventing draught fan impeller 3, a positioning disc 7 is fixedly connected with near the side of draught fan impeller 3 in described rotating shaft 4, this positioning disc 7 outer circumferential sides is fixedly connected with at least four sliding pearls 8, and, in described Blower Housing 1, correspond to this positioning disc 7 position also offer annular groove 9, described sliding pearl 8 is placed in this annular groove 9, and fits with this annular groove 9 inwall.Because the smooth surface of sliding pearl 8 is arranged, sliding pearl can be free to slide in annular groove 9, therefore can't hinder the rotation of draught fan impeller 3, again because the inwall of sliding pearl 8 and annular groove 9 is fit-state, there is not gap, thus can not shake in the process of draught fan impeller 3 rotation.
Described motor also has a safety cover 6, and this safety cover 6 is located at the outside of described transmission shaft and driving mechanism 5, for protecting this driving mechanism 5, makes it directly be exposed in external environment condition.This safety cover 6 is dismountable to be connected on Blower Housing 1 and motor 2 sidewall.
Further, be also provided with four lower margins 10 in the bottom of Blower Housing, described ground sole 10 is set to antivibration pad.The setting of four lower margins, make landing of blower fan more stable, and the bottom of lower margin is provided with antivibration pad, can alleviate noise during blower fan work.
Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (3)
1. a blower fan, comprise Blower Housing (1), motor (2), draught fan impeller (3) and rotating shaft (4), described Blower Housing (1) is provided with intake grill and exhaust outlet, described motor (2) is placed in Blower Housing (1) top, described draught fan impeller (3) is placed in Blower Housing (1), it is characterized in that: the affixed transmission shaft one (21) of described motor (2) sidepiece, one end of described rotating shaft (4) is connected to draught fan impeller (3), the other end of rotating shaft (4) stretches out Blower Housing (1) sidepiece and forms transmission shaft two (41), this transmission shaft two (41) is connected with transmission shaft one (21) by driving mechanism (5), rotate to drive draught fan impeller (3), a safety cover (6) is covered with outside described transmission shaft and driving mechanism (5), this safety cover (6) is dismountable is connected to Blower Housing (1) and motor (2) sidewall, described rotating shaft (4) is connected with positioning disc (7) near draught fan impeller (3) side, this positioning disc (7) outer circumferential sides is connected with at least four sliding pearls (8), described Blower Housing (1) offers annular groove (9) corresponding to this positioning disc (7) position, what described sliding pearl (8) and this annular groove (9) inwall fitted is placed in this annular groove (9).
2. blower fan according to claim 1, is characterized in that: be provided with four lower margins (10) bottom described Blower Housing, and described lower margin (10) bottom is set to antivibration pad.
3. blower fan according to claim 1, is characterized in that: described driving mechanism (5) is belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746706.2U CN205001231U (en) | 2015-09-21 | 2015-09-21 | Draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746706.2U CN205001231U (en) | 2015-09-21 | 2015-09-21 | Draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001231U true CN205001231U (en) | 2016-01-27 |
Family
ID=55158122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520746706.2U Expired - Fee Related CN205001231U (en) | 2015-09-21 | 2015-09-21 | Draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971912A (en) * | 2016-06-16 | 2016-09-28 | 成都迅德科技有限公司 | Fan |
-
2015
- 2015-09-21 CN CN201520746706.2U patent/CN205001231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971912A (en) * | 2016-06-16 | 2016-09-28 | 成都迅德科技有限公司 | Fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20170921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |