CN103671172A - Variable pitch fan - Google Patents
Variable pitch fan Download PDFInfo
- Publication number
- CN103671172A CN103671172A CN201310645044.5A CN201310645044A CN103671172A CN 103671172 A CN103671172 A CN 103671172A CN 201310645044 A CN201310645044 A CN 201310645044A CN 103671172 A CN103671172 A CN 103671172A
- Authority
- CN
- China
- Prior art keywords
- fan
- rotating shaft
- driving shaft
- variable pitch
- shaft
- 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.)
- Pending
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a variable pitch fan which comprises a fan motor, fan blades and a fan blade fixing base. The variable pitch fan is characterized in that the fan blades are fixedly connected with windward angle rotating shafts. Each windward angle rotating shaft penetrates through a bearing which is fixedly arranged in the fan blade fixing base, and the shaft head of the windward angle rotating shaft is fixedly provided with a bevel gear. The bevel gears are meshed with a driving bevel gear, and the included angles between the bevel gears and the driving bevel gear are 90 degrees. The driving bevel gear is installed at the head end of a driving shaft. The driving shaft penetrates through a bearing fixedly arranged in a rotating shaft of the fan motor and extends out of the rotating shaft of the fan motor. The cylindrical surface, extending out of the rotating shaft of the fan motor, of the driving shaft is provided with external threads and a lock nut. A handle is arranged at the tail end of the driving shaft.
Description
technical field:
The present invention relates to a kind of fan, specifically a kind of Variable Pitch fan.
background technique:
The blade of existing fan, for determine pitch structure, is controlled air force by change motor speed, can only realize step speed regulation, and it is very high by frequency variator, to realize the cost of stepless speed regulation.
summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of Variable Pitch fan.
In order to solve the problems of the technologies described above, Variable Pitch fan of the present invention comprises fan electromotor, blade, blade fixed base, it is characterized in that, blade is fixedly connected with angle rotating shaft windward, angle rotating shaft is fixedly installed a cone gear after being fixed on the bearing in blade fixed base on spindle nose windward, the active cone gear engagement of this cone gear and the angle that meets at right angles with it, initiatively cone gear is arranged on a driving shaft head end, driving shaft is through being fixedly mounted on the bearing in fan electromotor rotating shaft, and stretch out fan electromotor rotating shaft, driving shaft stretches out on fan electromotor rotating shaft cylndrical surface partly and is provided with outside thread and locking nut, driving shaft tail end arranges a handles.
The invention has the beneficial effects as follows: by rotating the handle of driving shaft tail end, the active cone gear of driving shaft head end is rotated, drive is positioned at each azimuth circle bevel gear and rotates, thereby the angle windward that changes each orientation blade, finally changes air quantity, realizes the object of stepless speed regulation.
Accompanying drawing explanation
Fig. 1 is Variable Pitch fan structure schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, Variable Pitch fan of the present invention is described in further detail.
As shown in the figure, Variable Pitch fan of the present invention comprises fan electromotor 1, blade 2, blade fixed base 3, it is characterized in that, blade 2 is fixedly connected with angle rotating shaft 4 windward, angle rotating shaft 4 is fixedly installed a cone gear 6 after being fixed on the bearing 5 in blade fixed base 3 on spindle nose windward, active cone gear 7 engagements of this cone gear 6 and the angle that meets at right angles with it, initiatively cone gear 7 is arranged on driving shaft 8 head ends, driving shaft 8 is through being fixedly mounted on the bearing 10 in fan electromotor rotating shaft 9, and stretch out fan electromotor rotating shaft 9, driving shaft 8 stretches out on the cylndrical surface of fan electromotor rotating shaft 9 parts and is provided with outside thread 11 and locking nut 12, driving shaft 8 tail ends arrange a handles 13.
Claims (3)
1. a Variable Pitch fan comprises fan electromotor (1), blade (2), blade fixed base (3), it is characterized in that, blade (2) is fixedly connected with angle rotating shaft windward (4), angle rotating shaft windward (4) is fixedly installed a cone gear (6) after being fixed on the bearing (5) in blade fixed base (3) on spindle nose, active cone gear (7) engagement of this cone gear (6) and the angle that meets at right angles with it, initiatively cone gear (7) is arranged on a driving shaft (8) head end, and driving shaft (8) is through the bearing (10) being fixedly mounted in fan electromotor rotating shaft (9).
2. the Variable Pitch fan of telling according to claim 1, it is characterized in that, driving shaft (8) stretches out fan electromotor rotating shaft (9), and driving shaft (8) stretches out on fan electromotor rotating shaft (9) cylndrical surface partly and is provided with outside thread (11) and locking nut (12).
3. the Variable Pitch fan of telling according to claim 1, is characterized in that, driving shaft (8) tail end arranges a handles (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645044.5A CN103671172A (en) | 2013-12-05 | 2013-12-05 | Variable pitch fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645044.5A CN103671172A (en) | 2013-12-05 | 2013-12-05 | Variable pitch fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103671172A true CN103671172A (en) | 2014-03-26 |
Family
ID=50309709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310645044.5A Pending CN103671172A (en) | 2013-12-05 | 2013-12-05 | Variable pitch fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671172A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280788Y (en) * | 1996-07-19 | 1998-05-06 | 殷哲 | Centrifugal diffusion type electric fan |
| US6991426B2 (en) * | 2001-01-11 | 2006-01-31 | Paolo Pietricola | Variable pitch fan |
| CN101619732A (en) * | 2009-07-29 | 2010-01-06 | 哈尔滨工业大学 | Connecting mechanism of low-noise fan and motor |
| CN202023693U (en) * | 2011-03-22 | 2011-11-02 | 上海万德风力发电股份有限公司 | Automatic variable-blade device of permanent magnetic direct wind driven generator |
| CN203594614U (en) * | 2013-12-05 | 2014-05-14 | 镇江新区惠聚机电科技有限公司 | Variable-pitch fan |
-
2013
- 2013-12-05 CN CN201310645044.5A patent/CN103671172A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280788Y (en) * | 1996-07-19 | 1998-05-06 | 殷哲 | Centrifugal diffusion type electric fan |
| US6991426B2 (en) * | 2001-01-11 | 2006-01-31 | Paolo Pietricola | Variable pitch fan |
| CN101619732A (en) * | 2009-07-29 | 2010-01-06 | 哈尔滨工业大学 | Connecting mechanism of low-noise fan and motor |
| CN202023693U (en) * | 2011-03-22 | 2011-11-02 | 上海万德风力发电股份有限公司 | Automatic variable-blade device of permanent magnetic direct wind driven generator |
| CN203594614U (en) * | 2013-12-05 | 2014-05-14 | 镇江新区惠聚机电科技有限公司 | Variable-pitch fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103661927A (en) | Variable pitch propeller of fixed-wing aircraft | |
| CN202468386U (en) | 360-degree unidirectional rotary fan | |
| CN104153940A (en) | Variable attack-angle device of vertical-shaft wind electric generator blade | |
| CN107472514B (en) | Variable pitch propeller and unmanned aerial vehicle | |
| WO2015040370A3 (en) | Drive system for aircraft landing gear | |
| CN203594614U (en) | Variable-pitch fan | |
| CN204386932U (en) | Axial-flow blower adjusting rotor blade device | |
| CN104260881B (en) | Lift device with disc wings | |
| CN203045657U (en) | Novel screw turning device | |
| CN103671172A (en) | Variable pitch fan | |
| CN204279941U (en) | A kind of multi-rotor aerocraft | |
| CN204310041U (en) | The automatically controlled pitch mechanism of coaxal helicopter | |
| CN103939289A (en) | Vertical-axis wind turbine capable of adjusting angle of attack automatically | |
| WO2013045644A3 (en) | Wind turbine rotor | |
| CN103527515A (en) | Shifting-fork-type diffusion guide vane adjusting device | |
| CN202555918U (en) | Power head of automatic tapping machine | |
| CN203146998U (en) | Valve manual device with two-stage transmission of planet gears and cylindrical gear | |
| CN204184096U (en) | Penknife drive mechanism | |
| CN203652110U (en) | Eccentric flapping-wing lifting force machine | |
| CN204109640U (en) | A kind of drive mechanism of penknife | |
| CN202360854U (en) | Adjustable straight travel electric actuator for travel mechanical position limitation | |
| CN104773286A (en) | Mechanical transmission roller wing lift force generation device | |
| CN105129084B (en) | The automatically controlled pitch mechanism design of coaxal helicopter | |
| CN203756882U (en) | Belt transmission mechanism | |
| CN204642156U (en) | A kind of motorized pulleys wing thrust generating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |