CN2498379Y - Axial flow fan - Google Patents
Axial flow fan Download PDFInfo
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- CN2498379Y CN2498379Y CN 01206944 CN01206944U CN2498379Y CN 2498379 Y CN2498379 Y CN 2498379Y CN 01206944 CN01206944 CN 01206944 CN 01206944 U CN01206944 U CN 01206944U CN 2498379 Y CN2498379 Y CN 2498379Y
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- blade
- motor
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- impeller
- torus
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- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 6
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- 239000004677 Nylon Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract 1
- 230000003245 working effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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Abstract
The utility model relates to an axial fan, specifically a tunnel mine is with positive contra-rotating axial fan of blade self-adaptation position, by the barrel, including a motor, an end cap, a controller, and a cover plate, the impeller, the air current awl, supporting rack constitutes, wherein the impeller position back of the body mutually, turn to each other opposite, can omit preceding well back static guide vane, keep fan import and export air current along the axial flow, the motor starts the initial stage, the shaft drives the blade self-adaptation and is located the best operating position when corotation or reversal, drive whole impeller then and get into corotation or reversal running state, best working property and efficiency when can ensure fan corotation or reversal.
Description
The utility model belongs to tunnel, mine mechanical field, specifically is a kind of propeller fan.
Existing long tunnel or mine ventilation machine, the normal single-stage axial jet blower that adopts clockwise and anticlockwise, realize the forward or reverse of blower fan with the method for change power supply phase place, to reach by weather wind direction, wagon flow direction, to send the requirements such as variation of exhausting to select the injection forward or backwards of air-flow.This class blower fan can both obtain close performance in order to take into account the positive and negative direction of air-flow, can only make simplified design to blade, causes fan performance and working efficiency all can't optimize.Also adopt the comparatively superior convection rotary type axial-flow blower of performance in addition, but when in a single day blower fan oppositely uses, the optimum position of work in the time of can not being adapted to reverse automatically owing to blade, its performance and working efficiency obviously worsen.In a word, because blade right position automatically, the performance of clockwise and anticlockwise blower fan and efficient are lower than the perfect unidirectional blower fan of design, and effectiveness of performance can worsen during the counter-rotating fan counter-rotating, and performance when causing above-mentioned blower fan to reverse, efficient are all relatively poor, and it is also more to consume energy.
The purpose of this utility model provides a kind of propeller fan, and the blade of its optimal design can be adapted to best operational position automatically, can both guarantee superperformance, the working efficiency and energy-conservation of ventilator when rotating and reverse.
The utility model is achieved by following technical proposals.
Propeller fan of the present utility model, constitute by cylindrical shell (1), motor (2), impeller (3), air-flow awl (4) and supporting frame (5), wherein, cylindrical shell cylindraceous (1) is gone up and is fixed with motor (2) by supporting frame (5), impeller (3) is installed on the motor shaft (16) by wheel hub (8), and air-flow awl (4) is separately fixed at the two ends of cylindrical shell (1) by supporting frame (5); Impeller (3) is made of blade (11), pressure ring (6) and the torus (12) of blade root band rotating shaft (10), blade (11) is uniformly distributed along the circumference and radially is inserted in the corresponding mounting hole of torus (12), and be fixed on the torus (12), pressure ring (6) is fixed on the torus (12), wheel hub (8) is fixed on the motor shaft (16), circular arc locating slot (18) on the pressure ring (6) matches with circular arc positioning block (7) on being fixed on wheel hub (8), adopts gear (17) transmission or wire rope (9) transmission between the rotating shaft (10) of blade (11) and the wheel hub (8).
In the such scheme, be added with nylon spacer or ball between blade rotor (10) and mounting hole so that rotate flexibly, the axle head suit packing ring (13) of blade rotor (10), tighten up locking by nut (15) and lock washer (14), torus (12) its right end face has circular groove and communicates with the blade installation hole, and some is emerging in the outer circular groove of mounting hole to make the gear (17) of root of blade rotating shaft (10) or wire rope (9).
In the such scheme, be provided with ball and raceway between wheel hub (8) and pressure ring (6) and the torus (12), can make angular turn each other, the position of its corner and scope, both positions of circular arc locating slot (18) and arc length by the end face corresponding position of circular arc positioning block (7) on the end face that is fastened on wheel hub (8) with screw and pressure ring (6) limit, or adopt fixing or adjustable position-limit mechanism of other position or other form to limit, the requirement that its limit value is rotated by the blade self adaption is calculated and is determined.
In the such scheme, adopt gear (17) transmission or wire rope (9) or other type of belt drive transmission between the rotating shaft (10) of blade (11) and the wheel hub (8), wire rope (9) is fixing with wheel hub (8) and rotating shaft (10) respectively, make wheel hub (8) can drive the blade self adaption rotation that angulation rotates in the mounting hole of correspondence action when making angular turn with respect to integral wheel (3) together with the motor shaft that tightens up mutually (16), the angle of blade rotation and position calculate to be determined by fan performance, makes blade be adaptive to blower fan when turning round forward or backwards or the best operational position of other requirement.
In the such scheme, cylindrical shell (1) before the rear end all with identical tubaeform full circle cover.
In the such scheme, supporting frame (5) connects into fixing integral body with motor (2) or air-flow awl (4) with cylindrical shell (1); Every group of supporting frame has 3～8, and along the circumferential direction uniform radially or oblique dunnage its section is wing, and the equal direct-axis flow path direction of the longitudinal surface of all dunnages is arranged.
In the such scheme, the three-phase AC asynchronous motor that motor (2) adopts end face to install.
In the such scheme, motor (2) is 2, and impeller (3) is 2, constitutes counter-rotating axial fan, and its 2 impellers (3) are opposing, drive, turn to opposite each other by two phase asynchronous Wechselstrommotors respectively.
Propeller fan of the present utility model, be not only applicable to the tunnel mine, also applicable to boats and ships, vehicle, building and similar other place, not only be used for the counter-rotating axial fan of blade from the right position clockwise and anticlockwise, also can be embodied as the single-stage propeller fan of forward and reverse air-flow, clockwise and anticlockwise, and forward and reverse air-flow, nonreversible single-stage, multistage axial flow ventilator and forward and reverse air-flow, nonreversible counter-rotating axial fan.To revolving the technical spirit of regulating ventilation, regulating rotating ratio, still may be implemented in aspects such as the operating angle adjustment of operating angle adjustment, working blade of the static guide vane of blower fan and the adjustment of bilobed wheel dual-motor rotating ratio according to the blade rotating angle adjustment of the utility model, impeller with frequency control of motor speed.
The utility model penetrates blower fan with the existing single-stage axial flow that reverses or the convection rotary type axial-flow blower is compared, and following advantage is arranged:
(1), omitted before, during and after static guide vane, mutually can keep the turnover air-flow of blower fan to flow vertically, and realize high-performance, the high efficiency of blower fan the impeller that revolves.
(2), adopt the blade of perfect pneumatic design, when blower fan turns round forward or backwards, can be adapted to best operational position automatically, guarantee that the forward and reverse work of blower fan can both reach optimum performance and efficient, reaches energy-saving effect.
(3), change different circular arc positioning blocks to change its mounting point and arc length, the established angle position of blade when being convenient to adjust blower fan forward and backward or other and requiring, thus be convenient to change the wind direction of blower fan, air quantity, power-performance indication according to customer requirements.
(4), use the different blade of pneumatic design instead, can enlarge the performance using scope of blower fan, or be convenient to the upgrading of blower fan, change blade and be convenient to maintenance.
(5), owing to omitted static guide vane, and motor is installed in the center portion of blower fan in the end face mode, simplify the structure, dwindled size, be convenient to develop higher pressure head, big flow, the blower fan of greater efficiency or light-duty blower fan product, be convenient to be applied in the pipe-line system or move on the equipment.
(6), two impellers are driven by two phase asynchronous Wechselstrommotors respectively, can use variable-frequency control technique regulates rotating speed, regulates the air quantity of blower fan to realize energy-conservation purpose according to user's needs, and rotating ratio that can be by regulating two impellers with the operating mode coupling of improving two impellers, enlarge surge margin, improve the ride quality of blower fan, improve the reliability and the Security of blower fan work.
Further illustrate the utility model below by embodiment, the utility model be not limited only to described it
Embodiment.
Fig. 1 is embodiment's one overall structure schematic representation of the present utility model.
Fig. 2 A is a blade wheel structure schematic representation among the embodiment one of the present utility model; Fig. 2 B is the left view of Fig. 2 A; Fig. 2 C is that the K of Fig. 2 A is to view.
Fig. 3 A is embodiment's two an of the present utility model blade wheel structure schematic representation; Fig. 3 B is the left view of Fig. 3 A; Fig. 3 C is that the K of Fig. 3 A is to view.
Among Fig. 1, the 1st, the flow blower casing cylindrical shell, the front end and back end is tubaeform cowling; The 2nd, the phase asynchronous Wechselstrommotor (2) that end face is installed; The 3rd, impeller (2); The 4th, air-flow awl (2); The 5th, supporting frame (4 groups), supporting frame connects into fixing integral body with casing cylinder 1 respectively with motor 2, air-flow awl 4, and every group of supporting frame has 4 along the circumferential direction uniform radial support plates, and its section is wing, the vertical and blower fan parallel to an axis of all dunnages.
In Fig. 2 A, Fig. 2 B, Fig. 2 C and Fig. 3 A, Fig. 3 B, Fig. 3 C: the 11st, root band wire rope 9 or gear 17 also improve the blade of pneumatic design with the employing of rotating shaft 10, have 6; The 2nd, torus, some radially mounting holes that are uniformly distributed along the circumference, the wherein also rotation of plug-in mounting behind the ball but respective vanes 11 is packed in the raceway of rotating shaft 10, the right side has circular groove, so that the wire rope 9 at protruding dew petiole place or the engaging tooth of gear 17; The 13rd, the load packing ring; The 14th, lock washer; The 15th, nut, in the fastening mounting hole that is locked in torus 12 of blade 11, during blower fan work, the centrifugal force of blade 11 passes to torus 12 by nut 15, packing ring 13 and 14; The 6th, pressure ring is linked to be integral wheel 3 with some bolts and torus 12; The 8th, wheel hub is connected and fixed with motor shaft 16 usefulness keys, after integral wheel 3 assemblings, is provided with roll ways and roll balls each other and can makes angular turn; The 7th, two circular arc positioning blocks that are uniformly distributed along the circumference, by screw at wheel hub 8 end faces, correspondence is embedded in the circular arc locating slot 18 of pressure ring 6 (seeing Fig. 3 C), the relative position of circular arc positioning block 7 and circular arc locating slot 18 and arc length are separately determined by calculating, when guaranteeing to place restrictions on the position about circular arc positioning block 7 is passed in circular arc locating slot 18, blade 11 can be from turnback, is in respectively that blower fan just changes, the optimum embedding angle position when reversing; The 19th, blade inlet edge.
The impeller working principle of present embodiment is described below: when positive direction actuation motor 2, motor shaft 16 is together with wheel hub 8 beginning forward rotation, circular arc positioning block 7 produces angular turn until by to left limit thereupon in the circular arc locating slot 18 of the pressure ring 6 of the integral wheel 3 of still locating the inertia state of rest, meanwhile, wheel hub 8 drives blades 11 rotations by wire rope 9 or engaging tooth 17, adapts to the optimum embedding angle position when the blower fan forward moves automatically.After this, thereby integral wheel 3 is promptly followed wheel hub 8 and motor shaft 16 rotations enter the forward running state, and blade 11 is met to positive draft with its leading edge 19 air is added merit, and air pressure is rearward discharged impeller.When reverse this motor 2 of startup, principle is the same, but circular arc positioning block 7 backward rotation in circular arc locating slot 18 is leaned on to right limit, blade is affected from turnback simultaneously, optimum embedding angle position when adapting to automatically to blower fan counter-rotating operation, after this impeller 3 is followed wheel hub 8 and motor shaft 16 enters the inverted running state, and the blade modulated turnback 11 this moment of impeller 3 meets to back draught its leading edge 19 air to be added merit, air pressure is forwards discharged impeller.In a word, at the fan starting initial stage, blade 11 can adapt to automatically to the optimum embedding angle position, and no matter afterwards motor 2 is just changeing counter-rotating, the air-flow Direct/Reverse, and blade 11 all has been adaptive to and has made its leading edge 12 lead to the optimum position of air-flow.
The ventilator working principle of present embodiment is described below: as shown in Figure 1, when the needs positive draft, upstream motor 2 starts, forward drives upstream impeller 3 and rotates, the 11 pairs of air-flows of blade that are adaptive to forward position add merit and gas are pressed to the rear, form swirling eddy, the downstream is by after starting simultaneously the motor 2 that revolves setting, promptly oppositely driving downstream impeller 3 rotates, the blade 11 that has been adaptive to reverse position on the downstream impeller 3 adds merit and with air pressure rearward facing to the rotation incoming flow, forms axial flow row to the blower fan rear.When the needs blower fan provides back draught, identical with aforementioned process, two motors 2 all oppositely start, driving two impellers 3 forms reciprocal moving to rotating, the blade 11 of two groups of impellers 3 is all after 180 degree rotations, automatically adapt to separately to opposite best operational position, make air-flow produce reverse flow after air-flow is oppositely added merit, form axial flow row at last to blower fan the place ahead.In a word, because blade 11 at the initial stage that motor 2 starts, is adaptive to its best operational position at once, blower fan can both obtain optimum performance and efficient when forward work or reverse operation then.
Claims (8)
1. propeller fan, constitute by cylindrical shell (1), motor (2), impeller (3), air-flow awl (4) and supporting frame (5), it is characterized in that cylindrical shell cylindraceous (1) upward is fixed with motor (2) by supporting frame (5), impeller (3) is installed on the motor shaft (16) by wheel hub (8), and air-flow awl (4) is separately fixed at the two ends of cylindrical shell (1) by supporting frame (5); Impeller (3) is made of blade (11), pressure ring (6) and the torus (12) of blade root band rotating shaft (10), blade (11) is uniformly distributed along the circumference and radially is inserted in the corresponding mounting hole of torus (12), and be fixed on the torus (12), pressure ring (6) is fixed on the torus (12), wheel hub (8) is fixed on the motor shaft (16), circular arc locating slot (18) on the pressure ring (6) matches with circular arc positioning block (7) on being fixed on wheel hub (8), adopts gear (17) transmission or wire rope (9) transmission between the rotating shaft (10) of blade (11) and the wheel hub (8).
2. propeller fan according to claim 1, it is characterized in that being added with between blade rotor (10) and mounting hole nylon spacer or ball so that rotate flexibly, the axle head suit packing ring (13) of blade rotor (10), tighten up locking by nut (15) and lock washer (14), torus (12) its right end face has circular groove and communicates with the blade installation hole, and some is emerging in the outer circular groove of mounting hole to make the gear (17) of root of blade rotating shaft (10) or wire rope (9).
3. propeller fan according to claim 1, it is characterized in that being provided with ball and raceway between wheel hub (8) and pressure ring (6) and the torus (12), can make angular turn each other, the position of its corner and scope, both positions of circular arc locating slot (18) and arc length by the end face corresponding position of circular arc positioning block (7) on the end face that is fastened on wheel hub (8) with screw and pressure ring (6) limit, or adopt fixing or adjustable position-limit mechanism of other position or other form to limit, the requirement that its limit value is rotated by the blade self adaption is calculated and is determined.
4. propeller fan according to claim 1, it is characterized in that adopting gear (17) transmission or wire rope (9) or other type of belt drive transmission between the rotating shaft (10) of blade (11) and the wheel hub (8), wire rope (9) is fixing with wheel hub (8) and rotating shaft (10) respectively, make wheel hub (8) can drive the blade self adaption rotation that angulation rotates in the mounting hole of correspondence action when making angular turn with respect to integral wheel (3) together with the motor shaft that tightens up mutually (16), the angle of blade rotation and position calculate to be determined by fan performance, makes blade be adaptive to blower fan when turning round forward or backwards or the best operational position of other requirement.
5. propeller fan according to claim 1, it is characterized in that cylindrical shell (1) before the rear end all with identical tubaeform full circle cover.
6. propeller fan according to claim 1 is characterized in that supporting frame (5) connects into fixing integral body with motor (2) or air-flow awl (4) with cylindrical shell (1); Every group of supporting frame has 3～8, and along the circumferential direction uniform radially or oblique dunnage its section is wing, and the equal direct-axis flow path direction of the longitudinal surface of all dunnages is arranged.
7. propeller fan according to claim 1 is characterized in that the three-phase AC asynchronous motor that motor (2) adopts end face to install.
8. propeller fan according to claim 1 is characterized in that motor (2) is 2, and impeller (3) is 2, constitutes counter-rotating axial fan, and its 2 impellers (3) are opposing, drive, turn to opposite each other by two phase asynchronous Wechselstrommotors respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206944 CN2498379Y (en) | 2001-07-23 | 2001-07-23 | Axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206944 CN2498379Y (en) | 2001-07-23 | 2001-07-23 | Axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2498379Y true CN2498379Y (en) | 2002-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206944 Expired - Fee Related CN2498379Y (en) | 2001-07-23 | 2001-07-23 | Axial flow fan |
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| Country | Link |
|---|---|
| CN (1) | CN2498379Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101535658B (en) * | 2006-11-08 | 2011-08-03 | 山洋电气株式会社 | Contra-rotating axial blower |
| CN107313967A (en) * | 2017-07-13 | 2017-11-03 | 浙江双阳风机有限公司 | A kind of convection rotary type axial flow fan with adjustable moving blades |
| CN109404312A (en) * | 2018-10-30 | 2019-03-01 | 江苏贝莱德风机制造有限公司 | A kind of aging furnace high-temperature resistant axial-flow fan |
| CN111535846A (en) * | 2020-06-22 | 2020-08-14 | 于晓晓 | Method capable of stabilizing wind flow for tunnel construction |
| CN118074431A (en) * | 2024-04-19 | 2024-05-24 | 东莞市天一精密机电有限公司 | Servo motor |
-
2001
- 2001-07-23 CN CN 01206944 patent/CN2498379Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101535658B (en) * | 2006-11-08 | 2011-08-03 | 山洋电气株式会社 | Contra-rotating axial blower |
| CN107313967A (en) * | 2017-07-13 | 2017-11-03 | 浙江双阳风机有限公司 | A kind of convection rotary type axial flow fan with adjustable moving blades |
| CN107313967B (en) * | 2017-07-13 | 2024-01-30 | 浙江双阳风机有限公司 | Axial flow fan with adjustable counter-rotating movable blades |
| CN109404312A (en) * | 2018-10-30 | 2019-03-01 | 江苏贝莱德风机制造有限公司 | A kind of aging furnace high-temperature resistant axial-flow fan |
| CN111535846A (en) * | 2020-06-22 | 2020-08-14 | 于晓晓 | Method capable of stabilizing wind flow for tunnel construction |
| CN111535846B (en) * | 2020-06-22 | 2022-04-26 | 于晓晓 | Method capable of stabilizing wind flow for tunnel construction |
| CN118074431A (en) * | 2024-04-19 | 2024-05-24 | 东莞市天一精密机电有限公司 | Servo motor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |