CN201047337Y

CN201047337Y - Propeller generator

Info

Publication number: CN201047337Y
Application number: CNU2007200696511U
Authority: CN
Inventors: 张元亨
Original assignee: SHANGHAI FENGGUANG ENERGY SOURCE SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: SHANGHAI FENGGUANG ENERGY SOURCE SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2007-04-30
Filing date: 2007-04-30
Publication date: 2008-04-16
Anticipated expiration: 2017-04-30

Abstract

The utility model discloses a windmill generator, comprising a rotary shaft, a plurality of vanes connected with the rotary shaft by a connecting rod, a transmission mechanism arranged below the rotary shaft, and a generator connected with the transmission mechanism. The transmission mechanism comprises a cover shell which is internally provided with a drive shaft, a sliding shaft held in a cavity arranged in the drive shaft and a pair of clutch mechanisms; the upper and lower sliding of the sliding shaft is controlled by the clutch mechanism to implement the operation of the generator. The utility model is simple and practical and greatly reduces the cost of the windmill generator.

Description

Propeller generator

Technical field

The utility model belongs to field of generating equipment, specifically, is about a kind of propeller generator.

Background technique

Existing windmill electric generating apparatus, its blade mostly is propeller form, and owing to structural reason generally is directed the installation, promptly level is installed.The startup wind speed of this windmill electric generating apparatus is usually more than 2m/s, under the wind speed about 1m/s, when particularly the wind direction change frequency is higher, very low to utilization ratio of wind energy, and bringing onto load starts and to be difficult to proper functioning basically, and this makes that Wind Power Utilization and technology are promoted in the generating of small-power windmill and is subjected to certain restriction.

In addition, for the situation that prevents to meet with high wind the generator overload that may cause and damage the situation of generator, existing windmill electric generating apparatus all adopts intelligentized control device, and the cost of this mode is the significantly increase that has caused the electricity generating device cost.Therefore be necessary the windmill electric generating apparatus that is limited to is improved.

Summary of the invention

The purpose of this utility model just is to overcome the existing existing above-mentioned defective of windmill electric generating apparatus, thereby a kind of new propeller generator is provided, and it not only can realize the non-loaded startup of windmill, and simple and practical, with low cost.

For achieving the above object, windmill electric generating apparatus of the present utility model comprises rotating shaft, by several fan blades that connecting rod links to each other with rotating shaft, and the driving mechanism that the rotating shaft below connects, and the generator that is connected with this driving mechanism.

This driving mechanism comprises a case, be provided with a driving shaft and a pair of clutch mechanism in the case, wherein be provided with cavity in this driving shaft, ccontaining one slide-bar that can slide up and down in the cavity, the lower end of this slide-bar is provided with a spring, the upper end then is provided with a pair of straight pin, and this driving shaft is to being provided with a pair of long strip opening to the position of straight pin, to be used to limit the zone that slides up and down of slide-bar; The middle part of this slide-bar is provided with the jut of one section suitable length, and the position that is lower than this jut on this driving shaft is provided with a contact block, when slide-bar can contact with this contact block during to lower slider; This clutch mechanism is one "  " shape part, and its bending place is fixed on the inner set fulcrum of case, and to form a lever, the upper end of being somebody's turn to do "  " shape part is resisted against the upper limb of straight pin, and the lower end then connects one centrifugal.

Like this, when windmill rotated under wind energy drives, case and internal component thereof also rotated along with rotating shaft, and centrifugal is moved to outer rim under action of centrifugal force at this moment, the upper end that drives "  " shape part presses down straight pin, and then drives the elastic force that slide-bar overcomes spring and move down; When wind speed reaches certain intensity, the jut of slide-bar contacts with described contact block, and then drives generator for electricity generation; And when wind speed was too fast, slide-bar continued to move down, and its jut breaks away from and the contacting of contact block thereupon, thereby can effectively avoid the generator overload and damage.

In addition, generator of the present utility model, the cross section of its fan blade are the swallow aerofoil profile, and this improvement can make windmill also can realize non-loaded startup under the wind speed about 1m/s, thereby have guaranteed the normal operation of windmill.

Windmill electric generating apparatus of the present utility model can be realized the non-loaded startup of windmill, and need not complicated intelligent control device, can guarantee the normal operation of electricity generating device, and is not only simple and practical, and greatly reduces cost.

Description of drawings

Fig. 1 is the structural representation of fan blade of the present utility model and driving mechanism part.

Fig. 2 is the phantom of driving mechanism of the present utility model.

Fig. 3 is the sectional shape schematic representation of fan blade of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, windmill electric generating apparatus of the present utility model is described in further detail with specific embodiment.Should be understood that following examples only are used to the utility model is described but not are used to limit scope of the present utility model.

As shown in Figure 1, windmill electric generating apparatus of the present utility model comprises rotating shaft 10, by several fan blades 12 that connecting rod 11 links to each other with rotating shaft 10, and the driving mechanism 20 that rotating shaft 10 belows connect, and the generator that is connected with this driving mechanism 20 (figure does not show).According to the utility model, the quantity of described fan blade 12 is 5.

As shown in Figure 2, this driving mechanism 20 comprises a case 21, be provided with a driving shaft 30 and a pair of clutch mechanism 40 in the case 21, wherein be provided with cavity 31 in this driving shaft 30, ccontaining one slide-bar 32 that can slide up and down in the cavity 31, the lower end of this slide-bar 32 is provided with a spring 33, and the upper end then is provided with a pair of

straight pin

34, and 30 pairs on this driving shaft should be provided with a pair of long strip opening 301 to the position of straight pin 34, to be used to limit the zone that slides up and down of slide-bar 32; The interruption of this slide-bar 32 is provided with the jut 321 of one section suitable length, and the external diameter of this jut 321 is bigger; And the position that is lower than this jut 321 on this driving shaft 30 is provided with a contact block 302, and when slide-bar 32 during to lower slider, its jut 321 can contact with this contact block 302; This clutch mechanism 40 comprises one "  " shape part 41, its bending place 410 is fixed on the set fulcrum 211 of case 21 inside, to form a lever, the upper end 411 of being somebody's turn to do "  " shape part 41 is resisted against the upper limb of straight pin 34, and lower end 412 then connects one centrifugal 35.

Like this, when windmill rotates under wind energy drives, case 21 and internal component thereof are also along with rotating shaft 10 is rotated, centrifugal 35 is moved to outer rim under action of centrifugal force at this moment, the upper end 411 that drives "  " shape part 41 presses down straight pin 34, and then drives the elastic force that slide-bar 32 overcomes spring 33 and move down; When wind speed reaches certain intensity, the jut 321 of slide-bar 32 contacts with described contact block 302, and then drives generator for electricity generation; And when wind speed was too fast, slide-bar 32 continued to move down, and its jut 321 breaks away from again and the contacting of contact block 302 thereupon, thereby can effectively avoid generator to transship and damage.

In addition, as shown in Figure 3, generator of the present utility model, the cross section of its fan blade 12 are the swallow aerofoil profile, and this improvement can make windmill also can realize non-loaded startup under the wind speed about 1m/s, thereby have guaranteed the normal operation of windmill.

Claims

1. a propeller generator comprises rotating shaft, and by several fan blades that connecting rod links to each other with rotating shaft, the driving mechanism that the rotating shaft below connects, and the generator that is connected with this driving mechanism is characterized in that,

This driving mechanism comprises a case, is provided with a driving shaft and a pair of clutch mechanism in the case; Wherein be provided with cavity in this driving shaft, ccontaining one slide-bar that can slide up and down in the cavity, the lower end of this slide-bar is provided with a spring, and the upper end then is provided with a pair of straight pin, and this driving shaft is to being provided with a pair of long strip opening to the position of straight pin, to be used to limit the zone that slides up and down of slide-bar; The middle part of this slide-bar is provided with the jut of one section suitable length, and the position that is lower than this jut on this driving shaft is provided with a contact block, when slide-bar can contact with this contact block during to lower slider; This clutch mechanism comprises one "  " shape part, and its bending place is fixed on the inner set fulcrum of case, and to form a lever, the upper end of being somebody's turn to do "  " shape part is resisted against the upper limb of straight pin, and the lower end then connects one centrifugal.

2. propeller generator as claimed in claim 1 is characterized in that, the cross section of described fan blade is that swallow is wing.

3. propeller generator as claimed in claim 1 is characterized in that, the quantity of described fan blade is 5.