CN203201876U - Box-type centrifugal fan - Google Patents
Box-type centrifugal fan Download PDFInfo
- Publication number
- CN203201876U CN203201876U CN 201320165641 CN201320165641U CN203201876U CN 203201876 U CN203201876 U CN 203201876U CN 201320165641 CN201320165641 CN 201320165641 CN 201320165641 U CN201320165641 U CN 201320165641U CN 203201876 U CN203201876 U CN 203201876U
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- Prior art keywords
- impeller
- fixed
- casing
- box
- motor
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- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a box-type centrifugal fan. The box-type centrifugal fan comprises a box body and an impeller, wherein the impeller is arranged in a volute, the volute is fixedly arranged in the box body, an air outlet of the volute is communicated with an air outlet hole which is arranged on a front plate of the box body, a bottom plate of the box body is fixedly provided with a adjusting guide rail and a supporting frame, an electric motor is fixedly arranged on the adjusting guide rail, the electric motor is arranged in the box body, an output shaft of the electric motor is fixedly provided with an output disk, the impeller is fixedly arranged on a connecting shaft, the left side wall and the right side wall, out of which the two ends of the connecting shaft stretch, of the volute are formed with air inlets and are fixedly arranged on bearings on the supporting frame which is arranged at the left side and the right side of the volute, the left end of the connecting shaft is fixedly provided with an input disk, a driving belt is tensioned on the output disk and the input disk, a rear plate of the box body is formed with an air inlet hole , the air inlet hole is communicated with the air inlet, and the air outlet hole and the air inlet hole are arranged in the same direction. According to the box-type centrifugal fan disclosed by the utility model, the electric motor is arranged in the box body, the structure is compact, the occupied space is small, a forward type impeller is simultaneously adopted for increasing air volume, and a box type structure is simultaneously adopted for reducing noise.
Description
Technical field:
The utility model relates to the ventilation equipment technical field, relates in particular a kind of box centrifugal blower.
Background technique:
Existing centrifugal blower generally is to adopt in the spiral case impeller is set, spiral case bottom fixing support rack, spiral case there is no noise reducing apparatus outward, so that its noise is large, therefore the employing backward type impeller that has to be reducing noise, but its reducing noise effect can not satisfy the needs in some facility places such as hotel, restaurant, movie theatre etc., and the dynamic pressure of adopting the backward type impeller that gas is obtained reduces, from blower fan discharge after static pressure also lower, air quantity has also descended;
And some employings arrange casing outside the spiral case of centrifugal blower, and what existing box-type centrifugal fan adopted is the external motoring, and it is fixed on motor outside the casing, and it is installed and be inconvenient, and it is large to take up room; And its intake grill of existing centrifugal blower and exhaust outlet generally are not on same direction, then can't satisfy the demand when needs are installed in an air intake and air-out at unidirectional passage.
The model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and provide a kind of box centrifugal blower, it is arranged on motor in the casing, its compact structure, occupy little space, simultaneously, adopt the forward-type impeller to improve air quantity, adopt simultaneously box typed structure to reduce noise, satisfy the place of some low-noise strong blast volumes and use.
Technology solution of the present utility model is as follows:
A kind of box centrifugal blower, comprise casing and impeller, impeller is arranged in the spiral case, spiral case is fixed in the casing, the exhaust outlet of described spiral case communicates with exhaust vent on the header board of casing, be fixed with on the base plate of casing and regulate guide rail and supporting frame, motor is fixed on to be regulated on the guide rail, motor is in casing, be fixed with output disc on the output shaft of motor, impeller is fixed on the coupling shaft, and stretch out on the bearing on the supporting frame that the intake grill that all forms on the left side wall of spiral case and the right side wall and the left and right sides that is fixed on spiral case be provided with at the two ends of coupling shaft; The left end of coupling shaft is fixed with input disc, and driving belt is stretched on output disc and the input disc, forms intake opening on the rear plate of casing, and intake opening communicates with intake grill, and exhaust vent and intake opening are in same direction.
Described adjusting guide rail cross section is the C type, form the bar shaped groove on the upper flap of adjusting guide rail, the positioning screw sleeve in the bar shaped groove and the default hole of passing on the motor base be screwed onto with setscrew nut, upper flap is clamped between the base of the head of positioning screw and motor.
Described impeller is the forward-type impeller, and the blade profile of impeller is circular-arc, and the bending direction of blade is identical with the vane rotary direction.
Be fixed with two on the base plate back side of described casing and connect channel-section steel.
The beneficial effects of the utility model are:
1, it adopts the forward-type impeller so that its air quantity increases, and static pressure increases, and adopts box typed structure to reduce noise, motor is arranged in the casing, makes its compact structure, space outerpace takies few, easy for installation simple, and satisfy the demanding place of low-noise strong blast volume is used.
2, the intake opening of its casing and exhaust vent satisfy some air intakes and air-out in unidirectional passage or place like this on same direction.
3, its motor is fixed on and regulates on the guide rail, can according to the needs adjusted position of driving belt tensioning, simultaneously, conveniently install so when mounted.
4, be fixed with two on the base plate back side of casing and connect channel-section steel, be fixed on the facility as long as will connect channel-section steel when installing like this, very convenient.
Description of drawings:
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the sectional perspective structural representation that changes angle of the present utility model;
Fig. 3 is right part of flg of the present utility model;
Fig. 4 is motor of the present utility model and the connection diagram of regulating guide rail;
Fig. 5 is the schematic diagram that concerns of the blade of impeller and wheel rotation direction;
Fig. 6 is the structural representation of spiral case of the present utility model and wall box.
Embodiment:
Embodiment: see shown in Fig. 1 to 5, a kind of box centrifugal blower, comprise casing 1 and impeller 2, impeller 2 is arranged in the spiral case 3, spiral case 3 is fixed in the casing 1, the sidewall of the exhaust outlet 31 of described spiral case 3 is fixed on the header board of casing 1, exhaust vent 11 on the header board of exhaust outlet 31 and casing 1 communicates, be fixed with on the base plate of casing 1 and regulate guide rail 4 and supporting frame 5, motor 6 is fixed on to be regulated on the guide rail 4, motor 6 is in casing 1, be fixed with output disc 61 on the output shaft of motor 6, impeller 2 is fixed on the coupling shaft 7, and the intake grill 32 that all forms on the left side wall of spiral case 3 and the right side wall is stretched out at the two ends of coupling shaft 7, and on the bearing 51 on the supporting frame 5 that is provided with of the left and right sides that is fixed on spiral case 3; The left end of coupling shaft 7 is fixed with input disc 71, and driving belt 8 is stretched on output disc 61 and the input disc 71, forms intake opening 12 on the rear plate of casing 1, and intake opening 12 communicates with intake grill 32, and exhaust vent 11 and intake opening 12 are in same direction.
Described adjusting guide rail 4 cross sections are the C type, form bar shaped groove 42 on the upper flap 41 of adjusting guide rail 4, positioning screw 9 sleeves in bar shaped groove 42 and the default hole of passing on motor 6 bases be screwed onto with setscrew nut 10, upper flap 41 is clamped between the base of the head of positioning screw 9 and motor 6; Motor 6 bases are fixed on two adjusting guide rails 4.
Described impeller 2 is the forward-type impeller, and blade 21 cross sections of impeller 2 are circular-arc, and the bending direction of blade 21 is identical with the vane rotary direction.
Be fixed with two on the base plate back side of described casing 1 and connect channel-section steel 13.
Working principle: air-flow enters from the intake opening 11 of the rear plate of casing 1, then enters the intake grill 32 of spiral case 3, then drives from exhaust outlet 31 by impeller 2 and discharges.
Claims (4)
1. box centrifugal blower, comprise casing (1) and impeller (2), impeller (2) is arranged in the spiral case (3), spiral case (3) is fixed in the casing (1), it is characterized in that: the exhaust outlet (31) of described spiral case (3) communicates with exhaust vent (11) on the header board of casing (1), be fixed with on the base plate of casing (1) and regulate guide rail (4) and supporting frame (5), motor (6) is fixed on to be regulated on the guide rail (4), motor (6) is in casing (1), be fixed with output disc (61) on the output shaft of motor (6), impeller (2) is fixed on the coupling shaft (7), and the intake grill (32) that all forms on the left side wall of spiral case (3) and the right side wall is stretched out at the two ends of coupling shaft (7), and on the bearing (51) on the supporting frame (5) that is provided with of the left and right sides that is fixed on spiral case (3); The left end of coupling shaft (7) is fixed with input disc (71), driving belt (8) is stretched on output disc (61) and the input disc (71), form intake opening (12) on the rear plate of casing (1), intake opening (12) communicates with intake grill (32), and exhaust vent (11) and intake opening (12) are in same direction.
2. described a kind of box centrifugal blower according to claim 1, it is characterized in that: described adjusting guide rail (4) cross section is the C type, form bar shaped groove (42) on the upper flap (41) of adjusting guide rail (4), positioning screw (9) sleeve in bar shaped groove (42) and the default hole of passing on motor (6) base be screwed onto with setscrew nut (10), upper flap (41) is clamped between the base of the head of positioning screw (9) and motor (6).
3. described a kind of box centrifugal blower according to claim 1, it is characterized in that: described impeller (2) is the forward-type impeller, and blade (21) cross section of impeller (2) is circular-arc, and the bending direction of blade (21) is identical with the vane rotary direction.
4. described a kind of box centrifugal blower according to claim 1 is characterized in that: be fixed with two on the base plate back side of described casing (1) and connect channel-section steels (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165641 CN203201876U (en) | 2013-04-03 | 2013-04-03 | Box-type centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165641 CN203201876U (en) | 2013-04-03 | 2013-04-03 | Box-type centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201876U true CN203201876U (en) | 2013-09-18 |
Family
ID=49145987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320165641 Expired - Fee Related CN203201876U (en) | 2013-04-03 | 2013-04-03 | Box-type centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201876U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704246A (en) * | 2016-12-20 | 2017-05-24 | 株洲联诚集团有限责任公司 | Machine frame structure of double-centrifugal-impeller draught fan of high-speed train |
| CN113217436A (en) * | 2021-06-15 | 2021-08-06 | 深圳市缚火龙机电实业有限公司 | Steady centrifugal fan |
| CN113217435A (en) * | 2021-06-15 | 2021-08-06 | 深圳市缚火龙机电实业有限公司 | Nimble installation type centrifugal fan |
-
2013
- 2013-04-03 CN CN 201320165641 patent/CN203201876U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704246A (en) * | 2016-12-20 | 2017-05-24 | 株洲联诚集团有限责任公司 | Machine frame structure of double-centrifugal-impeller draught fan of high-speed train |
| CN106704246B (en) * | 2016-12-20 | 2022-08-16 | 湖南联诚轨道装备有限公司 | Rack structure of high-speed train double-centrifugal-impeller fan |
| CN113217436A (en) * | 2021-06-15 | 2021-08-06 | 深圳市缚火龙机电实业有限公司 | Steady centrifugal fan |
| CN113217435A (en) * | 2021-06-15 | 2021-08-06 | 深圳市缚火龙机电实业有限公司 | Nimble installation type centrifugal 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20160403 |