CN204386932U - Axial-flow blower adjusting rotor blade device - Google Patents
Axial-flow blower adjusting rotor blade device Download PDFInfo
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- CN204386932U CN204386932U CN201520007808.2U CN201520007808U CN204386932U CN 204386932 U CN204386932 U CN 204386932U CN 201520007808 U CN201520007808 U CN 201520007808U CN 204386932 U CN204386932 U CN 204386932U
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- rotor blade
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- 238000006243 chemical reaction Methods 0.000 claims description 3
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Abstract
The utility model relates to a kind of axial-flow blower adjusting rotor blade device.Its structure is: one end of lead screw shaft is coaxially flexibly connected with blower fan main shaft, and the other end of lead screw shaft is coaxially flexibly connected with shrouding disc, and stretches out shrouding disc and be connected with power plant; Be flexibly connected feed screw nut at the helical thread portion of lead screw shaft, feed screw nut excircle connects adjustment disk, and the excircle of adjustment disk is connected with the regulating arm of adjusting vane by slide block.This device adopts screw mechanism, provides power by power plant, the rotation motion of leading screw is converted to straight line motion and promotes adjustment disk, realize blade adjustments.This apparatus structure is simple, precise control, manufacture and maintenance cost cheap.
Description
Technical field
The utility model relates to a kind of blade control device, especially adopts the axial-flow blower adjusting rotor blade device of screw mechanism.
Background technique
Axial-flow fan blade is adjustable two kinds of forms, Silence Process and adjusting rotor blade.Silence Process is exactly after blower fan shuts down, and carries out static adjust to blade angle; Adjusting rotor blade is exactly in blower fan running, carries out dynamic conditioning to blade angle.Current adjusting rotor blade device adopts hydraulic system usually, comprising: hydraulic power unit, hydraulic pipe line, driving mechanism, servomechanism, rotary seal, specially made hydraulic cylinder etc.This system process is complicated, and accuracy of manufacturing is high, and cost is large, maintenance difficult.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of axial-flow blower adjusting rotor blade device.This device adopts screw mechanism, and provide power by power plant, the straight line motion rotation motion of lead screw shaft being converted to feed screw nut, to promote adjustment disk, realizes blade adjustments.This apparatus structure is simple, precise control, manufacture and maintenance cost cheap.
For overcoming the above problems, concrete technological scheme of the present utility model is as follows: a kind of axial-flow blower adjusting rotor blade device, one end of lead screw shaft is coaxially flexibly connected with blower fan main shaft, and the other end of lead screw shaft is coaxially flexibly connected with shrouding disc, and stretches out shrouding disc and be connected with power plant; Be flexibly connected feed screw nut at the helical thread portion of lead screw shaft, feed screw nut excircle connects adjustment disk, and the excircle of adjustment disk is connected with the regulating arm of adjusting vane by slide block.
Described adjustment disk is provided with the through hole of circumference uniform distribution, is provided with the guide rod of level in through hole, and the two ends of guide rod are fixed by reel and shrouding disc.
Described power plant are frequency conversion motor structure, and variable-frequency motor is connected with lead screw shaft by clutch.
Described power plant are slowspeed machine structure, and slowspeed machine is connected with lead screw shaft by lead screw shaft coupling, and slowspeed machine is connected with shrouding disc and synchronous rotary, and slowspeed machine required electric power is provided by conducting slip ring.
Described power plant are gearbox designs, and gearbox has three axles, and wherein one is input shaft, and one is passing shaft, and one is output shaft; Input shaft is hollow shaft, and output shaft is arranged in input shaft, coaxial with input shaft; Passing shaft and input shaft, output shaft are parallel; Input shaft one end, outside gearbox, is connected with shrouding disc by input shaft coupling; The input shaft the other end, in gearbox, is engaged by synchronous gear wheels, power is passed to passing shaft; Power, by accelerating gear group or train of reduction gears engagement, is passed to output shaft by passing shaft; Power, outside gearbox, is passed to lead screw shaft by lead screw shaft coupling by one end of output shaft; Accelerating gear group and the train of reduction gears gear on output shaft is floating gear, is idle running when not connecting clutch; Timing clutch on output shaft and speed change clutch, locking when speed change when realizing blade adjustments by driving-controlling device and blade do not regulate.
This axial-flow blower adjusting rotor blade device adopts screw mechanism, and the straight line motion rotation motion of lead screw shaft being converted to nut screw, to promote adjustment disk, completes blade adjustments.
Preferably, adopt variable-frequency motor as power plant, connect lead screw shaft when rotating speed is consistent with blower fan main shaft by clutch, and by VFC rotating speed, realize the relative movement of lead screw shaft and feed screw nut.
Preferably, adopt slowspeed machine as power plant, slowspeed machine is arranged on shrouding disc; Conducting slip ring provides electric power to drive lead screw shaft to rotate to slowspeed machine, realizes the relative movement of lead screw shaft and feed screw nut.
Preferably, adopt gearbox as power plant, power resources are in main shaft, the input shaft in gearbox is passed to through shrouding disc, the gear train engagement of different rotating speeds is realized by the driving-controlling device in gearbox, drive lead screw shaft to rotate through output shaft again, realize the relative movement of lead screw shaft and feed screw nut.
Accompanying drawing explanation
Fig. 1 is embodiment one structural representation of axial-flow blower adjusting rotor blade device.
Fig. 2 is embodiment two structural representation of axial-flow blower adjusting rotor blade device.
Fig. 3 is embodiment three structural representation of axial-flow blower adjusting rotor blade device.
Embodiment
Embodiment one
As shown in Figure 1, a kind of axial-flow blower adjusting rotor blade device, one end of lead screw shaft 8 is coaxially flexibly connected with blower fan main shaft 1, and the other end of lead screw shaft 8 is coaxially flexibly connected with shrouding disc 5, and stretches out shrouding disc 5 and be connected with power plant 10; Be flexibly connected feed screw nut 6 at the helical thread portion of lead screw shaft 8, feed screw nut 6 excircle connects adjustment disk 7, and the excircle of adjustment disk 7 is connected with the regulating arm 3 of adjusting vane by slide block; Adjustment disk 7 is provided with the through hole of circumference uniform distribution, is provided with the guide rod 4 of level in through hole, and the two ends of guide rod 4 are fixed by reel 2 and shrouding disc 5, to ensure that adjustment disk 7 does straight line motion under the leading role of guide rod 4.The leading screw of shown lead screw shaft can be the structural type of threaded screw rod, ball screw or ball screw.
As shown in Figure 1, described power plant 10 are frequency conversion motor structure, and variable-frequency motor 12 is connected with lead screw shaft 8 by clutch 11, and wherein variable-frequency motor can for changing the speed-adjustable motor of motor speed by other means.
When carrying out adjustment of blade angle, start variable-frequency motor 12, now clutch 11 is separated state, and when variable-frequency motor 12 is consistent with spindle speed, clutch 11 transfers engagement to; Increasing or reduce motor speed will drive lead screw shaft 8 to rotate, lead screw shaft 8 and feed screw nut 6 is made to produce relative movement, feed screw nut 6 does straight line motion under the guiding of guide rod 4, thus carries out the adjustment of blade by regulating arm 3, should adopt the screw structure with auto-lock function.
Embodiment two
As shown in Figure 2, described power plant 10 are slowspeed machine structure, and slowspeed machine 13 is connected with lead screw shaft 8 by lead screw shaft coupling 15, and slowspeed machine 13 is connected with shrouding disc 5 and synchronous rotary, slowspeed machine 13 required electric power is provided by conducting slip ring 14, and all the other structures are identical with embodiment one.Wherein slowspeed machine can be the combination unit that frequency modulation motor or motor connect speed reducer.
When carrying out adjustment of blade angle, start slowspeed machine 13, lead screw shaft 8 is driven to rotate, lead screw shaft 8 and feed screw nut 6 is made to produce relative movement, feed screw nut 6 does straight line motion under the guiding of guide rod 4, thus the adjustment of blade is carried out by regulating arm 3, there is reducing gear in slowspeed machine, there is auto-lock function.
Embodiment three
As shown in Figure 3, described power plant 10 are gearbox designs, and gearbox has three axles, and wherein one is input shaft 17, and one is passing shaft 19, and one is output shaft 18; Input shaft 17 is hollow shaft, and output shaft 18 is arranged in input shaft 17, coaxial with input shaft 17; Passing shaft 19 and input shaft 17, output shaft 18 are parallel; Input shaft 17 one end, outside gearbox, is connected with shrouding disc 5 by input shaft coupling 16; Input shaft 17 the other end, in gearbox, is engaged by synchronous gear wheels 20, power is passed to passing shaft 19; Passing shaft 19 is engaged by accelerating gear group 21 or train of reduction gears 22, power is passed to output shaft 18; One end of output shaft 18 is outside gearbox, and drive lead screw shaft 8 to rotate by lead screw shaft coupling 15, all the other structures are identical with embodiment one.
Power resources self the rotating in blower fan of gearbox designs, the power of blower fan main shaft 1 passes to the input shaft 17 of gearbox through shrouding disc 5, then passes to passing shaft 19 through input shaft 17.
When not carrying out adjustment of blade angle, speed change clutch 24 is in separated state, and timing clutch 23 engages to the right, and make output shaft 18 identical with input shaft 17 rotating speed, lead screw shaft 8 geo-stationary is motionless, provides auto-lock function.
When carrying out adjustment of blade angle, timing clutch 23 is in separated state, speed change clutch 24 engages to the left or to the right, output shaft 18 is not identical with input shaft 17 rotating speed, output shaft 18 drives lead screw shaft 8 to rotate, make lead screw shaft 8 and feed screw nut 6 produce relative movement, feed screw nut 6 does straight line motion under the guiding of guide rod 4, thus carries out the adjustment of blade by regulating arm 3.
Claims (5)
1. an axial-flow blower adjusting rotor blade device, it is characterized in that: one end of lead screw shaft (8) is coaxially flexibly connected with blower fan main shaft (1), the other end of lead screw shaft (8) is coaxially flexibly connected with shrouding disc (5), and stretches out shrouding disc (5) and be connected with power plant (10); Be flexibly connected feed screw nut (6) at the helical thread portion of lead screw shaft (8), feed screw nut (6) excircle connects adjustment disk (7), and the excircle of adjustment disk (7) is connected with the regulating arm (3) of adjusting vane by slide block.
2. axial-flow blower adjusting rotor blade device as claimed in claim 1, it is characterized in that: described adjustment disk (7) is provided with the through hole of circumference uniform distribution, be provided with the guide rod (4) of level in through hole, and the two ends of guide rod (4) are fixed by reel (2) and shrouding disc (5).
3. axial-flow blower adjusting rotor blade device as claimed in claim 1, is characterized in that: described power plant (10) are frequency conversion motor structure, and variable-frequency motor (12) is connected with lead screw shaft (8) by clutch (11).
4. axial-flow blower adjusting rotor blade device as claimed in claim 1, it is characterized in that: described power plant (10) are slowspeed machine structure, slowspeed machine (13) is connected with lead screw shaft (8) by lead screw shaft coupling (15), slowspeed machine (13) is connected with shrouding disc (5) and synchronous rotary, and slowspeed machine (13) required electric power is provided by conducting slip ring (14).
5. axial-flow blower adjusting rotor blade device as claimed in claim 1, it is characterized in that: described power plant (10) are gearbox designs, and gearbox has three axles, wherein one is input shaft (17), one is passing shaft (19), and one is output shaft (18); Input shaft (17) is hollow shaft, and output shaft (18) is arranged in input shaft (17), coaxial with input shaft (17); Passing shaft (19) and input shaft (17), output shaft (18) are parallel; Input shaft (17) one end, outside gearbox, is connected with shrouding disc (5) by input shaft coupling (16); Power, in gearbox, by synchronous gear wheels (20) engagement, is passed to passing shaft (19) by input shaft (17) the other end; Power, by accelerating gear group (21) or train of reduction gears (22) engagement, is passed to output shaft (18) by passing shaft (19); Power, outside gearbox, is passed to lead screw shaft (8) by lead screw shaft coupling (15) by one end of output shaft (18); Accelerating gear group (21) and the gear of train of reduction gears (22) on output shaft (18) are floating gears, are idle running when not connecting clutch; Timing clutch (23) on output shaft (18) and speed change clutch (24), locking when speed change when realizing blade adjustments by driving-controlling device (25) and blade do not regulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007808.2U CN204386932U (en) | 2015-01-07 | 2015-01-07 | Axial-flow blower adjusting rotor blade device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007808.2U CN204386932U (en) | 2015-01-07 | 2015-01-07 | Axial-flow blower adjusting rotor blade device |
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| Publication Number | Publication Date |
|---|---|
| CN204386932U true CN204386932U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007808.2U Expired - Fee Related CN204386932U (en) | 2015-01-07 | 2015-01-07 | Axial-flow blower adjusting rotor blade device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799179A (en) * | 2018-07-24 | 2018-11-13 | 武汉思亘远电控设备有限公司 | The experimental rig and its test method of the motor-driven regulating mechanism of air inducing |
| CN109236715A (en) * | 2018-11-14 | 2019-01-18 | 成都工业学院 | A kind of axial-flow fan blade regulating mechanism and blower |
| US10612559B2 (en) | 2016-03-04 | 2020-04-07 | Taiyuan University Of Technology | Two-stage blade adjusting device for counter-rotating axial flow fan |
| CN112483449A (en) * | 2020-11-12 | 2021-03-12 | 中国神华能源股份有限公司国华电力分公司 | Axial fan hydraulic control component with adjustable moving blades |
| CN116972015A (en) * | 2023-08-01 | 2023-10-31 | 淄博金河风机有限公司 | Axial flow fan capable of automatically adjusting blade angle |
-
2015
- 2015-01-07 CN CN201520007808.2U patent/CN204386932U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10612559B2 (en) | 2016-03-04 | 2020-04-07 | Taiyuan University Of Technology | Two-stage blade adjusting device for counter-rotating axial flow fan |
| CN108799179A (en) * | 2018-07-24 | 2018-11-13 | 武汉思亘远电控设备有限公司 | The experimental rig and its test method of the motor-driven regulating mechanism of air inducing |
| CN108799179B (en) * | 2018-07-24 | 2024-05-03 | 山东博锐机器人科技有限公司 | Test device and test method for induced draft motor adjusting mechanism |
| CN109236715A (en) * | 2018-11-14 | 2019-01-18 | 成都工业学院 | A kind of axial-flow fan blade regulating mechanism and blower |
| CN112483449A (en) * | 2020-11-12 | 2021-03-12 | 中国神华能源股份有限公司国华电力分公司 | Axial fan hydraulic control component with adjustable moving blades |
| CN116972015A (en) * | 2023-08-01 | 2023-10-31 | 淄博金河风机有限公司 | Axial flow fan capable of automatically adjusting blade angle |
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| 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: 20150610 Termination date: 20160107 |