CN1095525C - Automatic axial flow fan - Google Patents
Automatic axial flow fan Download PDFInfo
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- CN1095525C CN1095525C CN00106118A CN00106118A CN1095525C CN 1095525 C CN1095525 C CN 1095525C CN 00106118 A CN00106118 A CN 00106118A CN 00106118 A CN00106118 A CN 00106118A CN 1095525 C CN1095525 C CN 1095525C
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- axial flow
- flow fan
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Abstract
The present invention relates to an automatic axial flow fan, which is composed of a pulse rotating transformer providing electrical energy for an impeller, an adjustment mechanism composed of an infrared remote controller, a servo motor, a belt, a worm wheel, a worm screw, a chain, blade handles, etc., an angular displacement sensor, a coded transmitter, a receiving decoder, numerical moving blades and a remote measuring display, wherein moving blades are synchronously adjusted by the adjustment mechanism in a stepless mode. The present invention is characterized in that the secondary of the pulse rotating transformer is rotary, and all moving blades are synchronously adjusted in a stepless mode by the drive of the chain. A remote controller with an infrared coding technology, and a numerical remote measuring display for infrared transfer carry out remote control and remote measuring for the moving blades of the automatic axial flow fan. The present invention provides a novel automatic axial flow fan having high efficiency, energy saving and integrative light, machine and electricity for the computerized management of a ventilation system of a factory.
Description
The present invention is a kind of movable vane propeller fan of adjusting angle automatically, ventilator can be adjusted and monitor when static or running the movable vane angle, can change the aeroperformance of blower fan by the adjustment of movable vane, blower fan has adopted light, mechanical, electrical incorporate automatic control system.
At present, in the technology of existing at home large-scale main blower manufacturer, the regulating method of Shanghai Blast Fan Factory, wind motor leaf established angle has three kinds: the one, and mechanical type is shut down and is concentrated the synchronous adjustable device; The 2nd, hydraulic pressure movable vane adjusting device; The 3rd, be mainly used in the single movable vane controlling device of mechanical type that transform in old ore deposit.And preceding two kinds be step-less adjustment.For another example: Wuhan Air-Blower Factory introduces the large-sized station boiler fan design and the manufacturing technology of MITSUBISHI.Design adjustable axial-flow or centrifugal fan, the movable vane angle can be regulated in 10 ° to 40 °.And for example: Shenyang Blower Factory is introduced Denmark company technology, produces adjustable power station propeller fan, can change the movable vane setting angle in the running.
According to the state of the art of above blower producer, the movable vane on the existing axial fan impeller can be divided into can be in harmonious proportion non-adjustable two kinds of patterns.And the adjustable mechanical type that is divided into shut down to concentrate synchronous adjustable and hydraulic type adjustable, the hydraulic type adjusting device, because the requirement on machining accuracy height, sealing problem should not solve.And because the synchronous operation of hydraulic oil supply system and propeller fan, its result has increased energy consumption and mechanical wear.And, because of the display device that does not have the movable vane angular adjustment to change.So, be difficult to the adjustment angle of accurate Control Shaft circulation wind motor leaf.Prior art in sum is to the adjustment of movable vane, and there is deficiency in detection method.
The purpose of automatic axial flow fan of the present invention is to overcome in the above-mentioned prior art not enough, provide a kind of can be normally in service at blower fan arbitrarily, the movable vane angle on the draught fan impeller is adjusted the light, mechanical, electrical integrated automatic axial flow fan of detection.
Be installed on the main motor front cover by the pulse rotary transformer is elementary in the automatic axial flow fan power supply system of the present invention, the pulse rotary transformer is secondary to be installed on the impeller, and rotates with impeller.Leave 0.2 to 1.5mm magnetic gap between the elementary and pulse rotary transformer of pulse rotary transformer is secondary.The output terminal of input end that the pulse rotary transformer is elementary and pulse power supply generator links.The output terminal of pulse power supply transformer secondary output and the input end of rectifier smoothing circuit link.When the pulse power supply generator under computer or artificial operation, connect ac power supply after, no matter impeller is static or high speed rotating, rectifier smoothing circuit can both be exported a constant DC and press each consumer of supplying with in the impeller.In optimum implementation of the present invention, best magnetic gap was between 0.2 to 1.5mm between the pulse rotary transformer was elementary, secondary.Elementary, the secondary frequency optimum traffic of pulse power supply generator and pulse rotary transformer is 1KHZ to 500KHZ, and pulse power supply generator and pulse rotary transformer are elementary, secondary, and the best effort waveform is a square wave.
Automatic axial flow fan of the present invention is made up of actuating motor, drivign belt, decelerator worm, retarder worm gear, drive sprocket or synchronous pulley, chain or synchronous band, driven sprocket or synchronous pulley, worm screw, worm gear, garden taper roller bearing, petiole, movable vane in the deceleration changement.When drive circuit, realize n movable vane stepless synchronous rotation on impeller by above-mentioned driving mechanism when driving the actuating motor rotation, owing to the structure that has adopted worm gear, worm screw, select suitable worm screw coefficient for use, worm gear, worm screw promptly have the function of self-locking.Adjust the angle generation drift phenomenon that can not occur movable vane after finishing.In optimum implementation of the present invention, 0.2 ° of the optium angle speed when movable vane rotates/s to 1.5 °/s, best adjustment range ± 180 °, maximum adjustable movable vanes are 32.
At automatic axial flow fan of the present invention, the infra-red remote control system that receives demoding circuit, drive circuit, forms by remote control coding emitting circuit, remote control in the remote-control gear.Remote control receives demoding circuit, drive circuit, provides electric energy by rectifier smoothing circuit.When the remote control coding emitting circuit by computer or manual operation the encoded infrared signal of time emission, remote control receives demoding circuit, the code signal that receives is decoded, amplified, signal triggering drive circuit after the amplification, the rotation of control actuating motor, through above-mentioned synchronous stageless transmission mechanism, realize n movable vane, the synchronous stepless rotation on impeller.The optimal channel number is four passages in the telechirics.
Numeral by angular displacement sensor, coding circuit, emitting circuit, receiving circuit, decoding digital display circuit, the movable vane position formed in the automatic axial flow fan remote measurement of the present invention numeral indication mechanism shows remote sensing systems, and coding circuit provides electric energy by rectifier smoothing circuit.The movable vane position becomes electrical signal to the analog amount of position through angular displacement sensor and sends into coding circuit, and the electrical signal that coding circuit diagonal displacement sensor transmits carries out function to be handled, and amplifies again through emitting circuit emission infrared signal.The receiving circuit, the decoding digital display circuit that are installed on the propeller fan housing amplify the shaping data processing to the infrared signal that receives, and are presented on the digital display.And import in the computer simultaneously, propeller fan aeroperformance and efficient are carried out comprehensive assessment, change the position of movable vane on impeller by above-mentioned remote control hue angle mechanism again, make propeller fan be in the optimum state, optimum implementation of the present invention is that the angles of display value of display device is ± 180 °.
The enforcement of automatic axial flow fan of the present invention is to realize like this, elementary, secondary by pulse power supply generator, pulse rotary transformer, synchronous stepless mechanical formula driving mechanism, infrared rays control mechanism, remote control detects digital display device, thereby has realized propeller fan normally in service, and the position of movable vane on impeller rapidly, adjust accurately, the pulse rotary transformer is elementary, secondary have been accomplished contactlessly, and the mode of no lead provides electric energy to the impeller of high speed rotating.And can be in the environment of inflammable gas proper functioning.In the time of need carrying out angular adjustment to movable vane, only need the input power supply of make pulse power source generator, all system enters working state, adjusts the input power supply of the back break impulse power source generator that finishes, and all system enters state of dormancy.All system is consumed power not, does not have the machinery wearing and tearing, and the phenomenon that no electronic original part is aging prolongs system-wide working life.Owing to adopted remote control, telemetry, realized the adjust system of high-speed rotating impeller is carried out the control and the detection of contactless no lead.
Below in conjunction with drawings and Examples, automatic axial flow fan of the present invention is further specified.
Fig. 1 automatic axial flow fan plan view
Fig. 2 automatic axial flow fan side view
Among Fig. 3 automatic axial flow fan side view figure:
1 impeller, 2 actuating motors, 3 drivign belts, 4 decelerator worms, 5 retarder worm gears, 6 drive sprockets or synchronous pulley, 7 chains or synchronous band, 8 driven sprockets or synchronous pulley, 9 worm screws, 10 worm gears, 11 bearings, 12 petioles, 13 movable vanes, 14 guide wheels, 15 rotary transformers are secondary, 16 rotary transformers are elementary, 17 rectifier smoothing circuits, 18 remote controls receive demoding circuit, 19 drive circuits, 20 angular displacement sensors, 21 coding circuits, 22 emitting circuits, 23 receiving circuits, 24 decoding digital display circuit, 25 remote control coding emitting circuits, 26 pulse power supply generators, 27 main electric machine controllers, 28 main motors.
Pulse power supply generator 26 among the figure, under computer or artificial operation, connect the input power supply, by pulse rotary transformer elementary 15, secondary 16 power delivery in rectifier smoothing circuit 17, the Pulse Electric that transports is carried out rectification, filtering, voltage stabilizing supplies with remote control and receive demoding circuit 18, drive circuit 19, coding circuit 21.When needs are adjusted movable vane degree angle, by the respective keys in computer or the artificial operating and remote controlling encoding transmitting circuit 25, remote control coding emitting circuit 25, launch coded infrared light pulse corresponding to keypress function, remote control receives demoding circuit 18, and pulse signals is decoded, amplified.Signal triggering drive circuit 19 after the amplification, actuating motor 2, under the driving of drive circuit 19, do postive direction or opposite spin by functional requirement.
Actuating motor 2 rotations, by drivign belt 3, decelerator worm 4, retarder worm gear 5, drive sprocket or synchronous pulley 6, chain or be with 7 synchronously, driven sprocket or synchronous pulley 8, worm screw 9, worm gear 10, bearing 11, petiole 12, each movable vane 13 is given in actuating motor 2, steady, stepless, the synchronous conduction of generation rotating force anomaly, realizes the synchronous stepless adjustment of movable vane 13 on impeller 1.Meanwhile, petiole 12 drives angular displacement sensor 20 and rotates synchronously, and angular displacement sensor 20 detects the electrical signal of variation,, launches with the pattern of infrared light handling the electrical signal that amplifies through function by coding circuit 21, emitting circuit 22.Receiving circuit 23, decoding digital display circuit 24 are presented at the infrared signal amplification, the shaping data processing that receive on the digital display, and can import simultaneously in the computer, and the aeroperformance and the efficient of blower fan are carried out comprehensive assessment.
Rotary transformer among the present invention elementary 15, secondary 16 is by the differentiation of the rotary transformer in VTR, the video head and next.Difference is that this pulse rotary transformer is in pulse power supply, is used to transmit the critical component of electric energy, and the rotary transformer of VTR magnetic head is for transmitting the parts that video signal is used.
The data such as principle of consulting relevant VTR more than are described.
Claims (7)
- Automatic axial flow fan1, a kind of automatic axial flow fan, it is by pulse power supply generator, primary and secondary, the rectifier smoothing circuit of pulse rotary transformer in the power supply system; Actuating motor, drivign belt, deceleration worm screw, deceleration worm gear, drive sprocket or synchronous pulley, chain or synchronous band, driven sprocket or synchronous pulley, worm screw, worm gear, bearing, petiole, movable vane in the Synchronous Transmission mechanical structure; Remote control coding emitting circuit, remote control receive demoding circuit, drive circuit in the telechirics; Angular displacement sensor in the remote sensing systems, coding circuit, emitting circuit, receiving circuit, decoded digital display circuit are formed, it is characterized in that: the pulse rotary transformer is elementary to be installed on the front cover of main motor, transformation is secondary is installed on the impeller for pulse rotation, with impeller rotation together, leave 0.2 to 1.5mm magnetic gap between the pulse rotary transformer is primary and secondary; It is by chain or synchronous n movable vane, the stepless synchronous drive mechanism formed of band, sprocket wheel or synchronous pulley, actuating motor, drivign belt, deceleration worm screw, deceleration worm gear, bearing, petiole; It receives the far red light remote-control gear that demoding circuit is formed by remote control coding emitting circuit, remote control; The digital telemetering display device that it is made up of angular displacement sensor, coding circuit, emitting circuit, receiving circuit, decoded digital display circuit.
- 2, automatic axial flow fan according to claim 1 is characterized in that it is between the 1KHz to 500KHz that described pulse power supply generator, pulse rotary transformer are suitable for frequency.
- 3, automatic axial flow fan according to claim 1 is characterized in that described pulse power supply generator, pulse rotary transformer work wave are square waves.
- 4, automatic axial flow fan according to claim 1, it is characterized in that described actuating motor, belt, deceleration worm screw, deceleration worm gear, drive sprocket and synchronous pulley, chain or the stepless synchronous drive mechanism formed of band, driven sprocket or synchronous pulley, worm screw, worm gear, petiole, movable vane synchronously, the movable vane rotational angular is 0.2 °/s to 1.5 °/s.
- 5, automatic axial flow fan according to claim 1, it is characterized in that described actuating motor, belt, deceleration worm screw, deceleration worm gear, drive sprocket or synchronous pulley, chain or the synchronous drive mechanism formed of band, driven sprocket or synchronous pulley, worm screw, worm gear, petiole, movable vane synchronously, movable vane adjustment range ± 180 °.
- 6, automatic axial flow fan according to claim 1 is characterized in that described remote control coding emitting circuit, remote control reception demoding circuit have four passages.
- 7, automatic axial flow fan according to claim 1 is characterized in that the digital telemetering display unit that described angular displacement sensor, coding circuit, emitting circuit, receiving circuit, decoding digital display circuit are formed; Maximum show value ± 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00106118A CN1095525C (en) | 2000-04-26 | 2000-04-26 | Automatic axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00106118A CN1095525C (en) | 2000-04-26 | 2000-04-26 | Automatic axial flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1269470A CN1269470A (en) | 2000-10-11 |
| CN1095525C true CN1095525C (en) | 2002-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00106118A Expired - Fee Related CN1095525C (en) | 2000-04-26 | 2000-04-26 | Automatic axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095525C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819164B (en) * | 2015-05-15 | 2017-08-25 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of adjustable stator blade linkage adjusting apparatus |
| CN107676284B (en) * | 2017-08-23 | 2020-04-14 | 太原理工大学 | Fan blade adjusting device, counter-rotating fan and fan blade adjusting method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3318166A1 (en) * | 1983-05-19 | 1984-11-22 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Device for indicating an angle of rotation of rotor blades and/or guide vanes on hydrodynamic machines |
| JPH10141283A (en) * | 1996-11-06 | 1998-05-26 | Nec Niigata Ltd | Electric fan motor |
| CN2308750Y (en) * | 1997-02-21 | 1999-02-24 | 赖涤泉 | Axial ventilator |
-
2000
- 2000-04-26 CN CN00106118A patent/CN1095525C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3318166A1 (en) * | 1983-05-19 | 1984-11-22 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Device for indicating an angle of rotation of rotor blades and/or guide vanes on hydrodynamic machines |
| JPH10141283A (en) * | 1996-11-06 | 1998-05-26 | Nec Niigata Ltd | Electric fan motor |
| CN2308750Y (en) * | 1997-02-21 | 1999-02-24 | 赖涤泉 | Axial ventilator |
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| Publication number | Publication date |
|---|---|
| CN1269470A (en) | 2000-10-11 |
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