CN2143269Y - Paddle angle turning mechanism of ventilator - Google Patents
Paddle angle turning mechanism of ventilator Download PDFInfo
- Publication number
- CN2143269Y CN2143269Y CN 92236825 CN92236825U CN2143269Y CN 2143269 Y CN2143269 Y CN 2143269Y CN 92236825 CN92236825 CN 92236825 CN 92236825 U CN92236825 U CN 92236825U CN 2143269 Y CN2143269 Y CN 2143269Y
- Authority
- CN
- China
- Prior art keywords
- paddle
- rotary wheel
- wire rope
- blade
- speed reducer
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a paddle angle turning mechanism of ventilator which belongs to a blade regulating mechanism. Most of the existing blowers adopt the mode of the paddle angle installation through connecting rod mechanism or bevel tooth rotation. The connecting rod mechanism can not make blade rotate 180 DEG, and aerodynamic performance declines. Having backlash, the bevel tooth rotation is easy to generate oscillation and needs another power source. In the utility model, a small rotary wheel is arranged on a paddle root, the rotary wheel is wound with steel cable, the two ends of the steel cable are fixed on a big rotary wheel which is engaged with the small rotary wheel and is circumferential rotation, in the process of low speed rotation, a brake on the high speed shaft of harmonic speed reducer enables bull wheel rotate relatively with a fan rotor, the paddle blade can rotate 180 DEG to realize wind reversion of the blower.
Description
The utility model belongs to the movable vane regulating and controlling mechanism.
The general now automatic inverted ventilation blower fan that adopts adopts linkage mechanism or the transmission of umbrella tooth mostly.Connecting rod transmission rotor blade can not change 180 °, and to bringing the realization inverted ventilation, the blower fan aeroperformance descends with the inlet and outlet limit of blade, and the inverted ventilation amount is little, and efficient is very low.With umbrella tooth transmission regulation and control blade angle, back lash Da Yi produces vibration, and driven gear mechanism rotates and needs another power source, if with the screw-casing tooth or by the hydraulic transmission mode input, and its complex structure, reliability is also relatively poor.
The purpose of this utility model is a kind of simple in structure, easy to control, movable vane automatic corner mechanism of not needing the additionaling power source of development.
Technical measures of the present utility model and embodiment are described below: it is by greatly, little runner, wire rope, harmonic reduction and break are formed, it is characterized in that being fixed with little runner (1) at the moving vane root, the wire rope (3) that is wrapped on each little runner is packed on the great wheel (2) with wire rope positioning block (9) and wire rope set screw nut (10), adorn a harmonic speed reducer (4) on the great wheel (2), the lower velocity shaft of this retarder is connected with impeller (7) by spacer shell (8) and two keys, break (5) is housed on the high speed shaft of harmonic speed reducer, and impeller (7) cantilever type is contained on the axle of motor (6).
The working principle of this movable vane automatic corner mechanism is: because the transmission of harmonic speed reducer is irreversible, as long as its high speed shaft does not unscrew, the angle of the relative impeller of great wheel remains unchanged, thereby the established angle of blade also remains unchanged.When needs change the established angle realization inverted ventilation of blade, at first cut off the electricity supply, at rotor when changeing, arrester close, so the high speed shaft of harmonic speed reducer is its housing rotation relatively just, therefore the lower velocity shaft after slowing down also rotates, and has so just realized the relative rotation of great wheel with impeller, reaches the purpose of blade rotating angle.In the process that slowly runs, the break on the harmonic speed reducer high speed shaft can make great wheel apparent wind machine rotor rotate, and at this moment great wheel affects the wire rope that is wrapped on each little runner; make little runner rotate about 180 °; after the shutdown, the rotor counter-rotating has just realized backward air blowing.
Description of drawings:
But Fig. 1 is an inverted ventilation ventilator moving vane automatic corner structural scheme of mechanism.
Wherein: the little runner 2-of 1-great wheel
3-wire rope 4-harmonic speed reducer
5-break 6-motor
7-impeller 8-spacer shell
Fig. 2 is that Figure 1A is to partial enlarged drawing.
Wherein: 9-wire rope positioning block 10-wire rope set screw nut
The utility model has the advantages that transmission mechanism is simple in structure, Xu is not Yaoed the regulator control system of complexity, not additionaling power Yuan. After blade angle was moved device Xuan Zhuan by Zhi, the irreversibility automatic locking of You harmonic speed reducer was dead. The no twisting vibration of Ye sheet gap, Yun is Hang reliable.
Claims (1)
- But inverted ventilation ventilator moving vane automatic corner mechanism belongs to the blade regulating and controlling mechanism, it is by greatly, little runner, wire rope, harmonic speed reducer and break are formed, it is characterized in that being fixed with little runner (1) at the moving vane root, the wire rope (3) that is wrapped on each little runner is packed on the great wheel (2) with wire rope positioning block (9) and wire rope set screw nut (10), adorn a harmonic speed reducer (4) on the great wheel (2), the lower velocity shaft of this retarder is connected with impeller (7) by spacer shell (8) and two keys, break (5) is housed on the high speed shaft of harmonic speed reducer, and impeller (7) cantilever type is contained on the axle of motor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92236825 CN2143269Y (en) | 1992-09-28 | 1992-09-28 | Paddle angle turning mechanism of ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92236825 CN2143269Y (en) | 1992-09-28 | 1992-09-28 | Paddle angle turning mechanism of ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2143269Y true CN2143269Y (en) | 1993-10-06 |
Family
ID=33778250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92236825 Expired - Fee Related CN2143269Y (en) | 1992-09-28 | 1992-09-28 | Paddle angle turning mechanism of ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2143269Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775363A (en) * | 2014-01-24 | 2014-05-07 | 江苏大学 | Axial flow fan with adjustable movable blades |
| CN111472992A (en) * | 2020-04-15 | 2020-07-31 | 华中科技大学 | Device and method for adjusting rotating rope type movable blades of axial flow fan |
| CN111936750A (en) * | 2018-06-18 | 2020-11-13 | Ie资产有限两合公司 | Fan wheel driven in only one direction of rotation |
-
1992
- 1992-09-28 CN CN 92236825 patent/CN2143269Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775363A (en) * | 2014-01-24 | 2014-05-07 | 江苏大学 | Axial flow fan with adjustable movable blades |
| CN111936750A (en) * | 2018-06-18 | 2020-11-13 | Ie资产有限两合公司 | Fan wheel driven in only one direction of rotation |
| CN111472992A (en) * | 2020-04-15 | 2020-07-31 | 华中科技大学 | Device and method for adjusting rotating rope type movable blades of axial flow fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |