CN103306908B - Protecting device of wind energy perpendicular transmission system - Google Patents
Protecting device of wind energy perpendicular transmission system Download PDFInfo
- Publication number
- CN103306908B CN103306908B CN201310261896.4A CN201310261896A CN103306908B CN 103306908 B CN103306908 B CN 103306908B CN 201310261896 A CN201310261896 A CN 201310261896A CN 103306908 B CN103306908 B CN 103306908B
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- Prior art keywords
- keyway
- transmission shaft
- wind wheel
- wind
- helical gear
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- Y02E10/722—
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- Wind Motors (AREA)
Abstract
The invention discloses a protecting device of a wind energy perpendicular transmission system. The forward rotation or the reverse rotation of a wind wheel rotating shaft in the variable wind direction is utilized; the speed limiting protection mechanism of a transmission mechanism in the variable wind direction can be realized through the axial force and the spring stored force produced by a cylindrical spiral gear transmission. The working unit can be enabled to realize work stopping when the wind speed is too high in various wind directions; so that the damage of the working unit caused by the overload work is avoided; the device can be applied to the protection of the wind energy transmission system.
Description
Technical field
The invention belongs to blower fan technical field, be specifically related to a kind of driving system overload protector.
Background technique
In the contest changed from fossil fuel to renewable energy sources and avoid climatic change out of control, wind energy has become one of use renewable energy sources the most extensive and with fastest developing speed, is also the renewable resources most in the recent period with the prospect of large-scale developing and utilizing.Running of wind generating set bad environments, along with Global Wind-energy is fast-developing, running of wind generating set quantity constantly increases, and all kinds of Wind turbines accident also constantly occurs, an urgent demand takes safety measures to wind power technology.Existing wind-driven generator method for limiting speed changes wind blade wind-exposuring area speed limit and electromagnetism speed limit etc.; as 200910137035.9; a kind of variable plane fan blade combination, the wind motor with the combination of this fan blade and power generation system are invented; according to the area of the intensity adjustment dodge gate of wind-force, thus a whole set of wind generating unit can be protected.And for example 200920076009.5, this invention realizes the rotating speed of wind-driven generator, the automatic control of output voltage, makes it be in safe and reliable working state all the time.Prior art can only work under a kind of condition of wind direction, cannot realize can running under various wind direction, and cannot realize work unit and quit work when wind speed is excessive.
Summary of the invention
The object of the present invention is to provide a kind of wind energy vertical-transmission system protection device, make to realize work unit under various wind direction and quit work when wind speed is excessive, thus avoid the damage that work unit causes due to overload work.
In order to solve above technical problem; the present invention utilize changeable wind direction leeward wheel shaft sense of rotation or rotate forward or counterrotating, produce by slant gear transmission the speed-limiting protection mechanism that axial force and spring energy storage realize at changeable wind direction lower transmission mechanism.Concrete technological scheme of the present invention is as follows:
A kind of wind energy vertical-transmission system protection device, comprise wind wheel (1), working machine transmission shaft (6), keyway A (9), the casing (15) with wind wheel rotatingshaft (2), it is characterized in that: also comprise large helical gear (3), wind wheel transmission shaft (4), coupling arrangement (5), elastic supporting member for supporting optical member (7), boss (8), keyway A (9), round key A (10), square keyway C (11), square keyway D (12), keyway B (13), round key B (14); The bevel pinion (16) be assemblied on wind wheel rotatingshaft (2) engages each other with the large helical gear (3) be assemblied on wind wheel transmission shaft (4); Drive bevel pinion (16) to rotate by wind wheel rotatingshaft (2), bevel pinion (16) drives large helical gear (3) to turn, thus drives wind wheel transmission shaft (4) to rotate; Wind wheel transmission shaft (4) is provided with keyway A (9) away from one end of large helical gear (3), round key A (10) coordinates with keyway A (9), and is connected with wind wheel transmission shaft (4) by keyway A (9); Casing (15) is fixed on ground, and the working machine (18) with working machine transmission shaft (6) is connected with casing (15) by elastic supporting member for supporting optical member (7); Offer keyway B (13) at working machine transmission shaft (6) away from the one end be connected with elastic supporting member for supporting optical member (7), round key B (14) coordinates with keyway B (13); By with connect working machine transmission shaft (6) and connect, one end of coupling arrangement (5) offers the square keyway C (11) matched with key A (10), and the other end offers the square keyway D (12) matched with round key B (14); Wind wheel transmission shaft (4) and working machine transmission shaft (6) can slide vertically in square keyway C (11) and square keyway D (12); Boss (8) is positioned on wind wheel transmission shaft (4), between large helical gear (3) and keyway A (9); L-type support (17) one end is fixed on casing (15); the other end is suspended from position between boss (8) and large helical gear (3); form protective gear, can not be excessive to top offset to limit wind wheel transmission shaft (4).
Described large helical gear (3) is big column helical gear or large circular cone helical gear; Described bevel pinion (16) is small column helical gear or conicle helical gear.
Described elastic supporting member for supporting optical member (7) can be spring (7).
Coupling arrangement (5) is fixed block, and with two square keyways, in the keyway (9) of wind wheel transmission shaft (4), round key A (10) is installed, round key A (10) inserts the square keyway C (11) of coupling arrangement (5), in working machine transmission shaft (6), round key B (14) is installed, round key B (14) inserts the square keyway D (12) of coupling arrangement (5), like this, wind wheel transmission shaft (4) is driven by coupling arrangement (5) and connects working machine transmission shaft (6) work.The slant gear transmission of vertical ground of the present invention by wind wheel running shaft rotate forward or counterrotating is converted into axial force F a up or down perpendicular to the ground on wind wheel transmission shaft 4.F
tfor wind wheel rotates the peripheral force produced; T is that wind wheel produces moment of torsion.The moment of torsion of wind wheel can be calculated according to the parameter of wind wheel used and rotating speed.
F
a＝F
ttanβ
When windless condition wind wheel is static, its stress of whole system as shown in Figure 2.Wind wheel transmission shaft 4 self gravitation is G
1, working machine transmission shaft 6 self gravitation is G
3.Spring 7 stressed F=k*L '=G
1+ G
3,k is the elasticity coefficient of spring 7, selects suitable spring 7 to make k*L=G1.Setting is according to the wind speed V limited
windmax calculates corresponding F
amax, and regulate the gravity G connecting wind wheel transmission shaft
1make F
amax=G
1.
Work as F
axledirection vertically upward time, if F
axle>F
axle max, total stress value of wind wheel transmission shaft 4 is F
axle-G
1, and and F
axledirection is identical, vertically upward, thus cause wind wheel transmission shaft 4 upward sliding, and last round key A10 skids off the square keyway A11 in coupling arrangement 5, and disconnect and connecting, working machine quits work, and realizes protection mechanism.
Work as F
axledirection vertically downward time, spring 7 receives compression and moves downward with the transmission device 6 of working machine mounted thereto downwards.The power that spring receives is: F
spring=k* (L '+△ L)=G
1+ G
3+f
axle, △ L is the distance that the transmission device 6 of spring 7 and working machine moves down.Work as F
axle=F
axle maxtime: △ L=L, the round key B14 on the transmission device 6 of working machine just in time skid off the square keyway B12 in coupling arrangement 5, and disconnect and connecting, working machine quits work, and realizes protection mechanism.
The present invention has beneficial effect.The present invention by the slant gear transmission of a vertical ground by wind wheel running shaft rotate forward or counterrotating is converted into the upper axial force up or down perpendicular to the ground of wind wheel transmission shaft (4).When the axial force that slant gear transmission makes wind wheel transmission shaft (4) produce upwards; when this axial force is greater than wind wheel transmission shaft (4) self gravitation; wind wheel transmission shaft (4) self be subject to vertically upward make a concerted effort and move up; the round key A (10) of last wind wheel transmission shaft (4) skids off the square keyway A11 in coupling arrangement (5); whole transmission joint disconnects; working machine quits work, and realizes protection mechanism.And at the upper installation boss of wind wheel transmission shaft (4), to prevent wind wheel transmission shaft 4 because moving up the excessive and casing that flies out (15).Protective action successful of the present invention, structure is simple, and does not affect the normal operation of wind power generating set.
Accompanying drawing explanation
Fig. 1 is schematic top plan view of the present invention.
Fig. 2 is protective gear schematic diagram of the present invention.
In figure: 1-wind wheel; 2-wind wheel rotatingshaft; 3-large helical gear; 4-wind wheel transmission shaft; 5-coupling arrangement; 6-working machine transmission shaft; 7-elastic supporting member for supporting optical member; 8-boss; 9-keyway A; 10-round key A; The square keyway C of 11-; The square keyway D of 12-; 13-keyway B; 14-round key B; 15-casing; 16-bevel pinion; 17-L type support; 18-working machine.
Embodiment
As shown in Figure 1, wind energy vertical-transmission system protection device of the present invention comprises wind wheel 1; Wind wheel rotatingshaft 2; Big column helical gear 3; Wind wheel transmission shaft 4; Coupling arrangement 5; Working machine transmission shaft 6; Elastic support 7; Boss 8; Keyway A9; Round key A10; Square keyway C11; Square keyway D12; Keyway 13B; Round key B14; Casing 15; Small column helical gear 16; L-type support 17; Working machine 18.The transmission device connecting wind wheel, working machine adds keyway; when wind wheel Moment exceedes limit value; the axial force produced when making wind wheel transmission shaft 4 or working machine transmission shaft 6 be subject to slant gear transmission or spring-force driven dual and automatically disconnecting with coupling arrangement 5 connects; thus play protection working machine object, avoid it and work under a large load and be damaged.
As shown in Figure 2, when windless condition wind wheel is static, wind wheel transmission shaft 4 self gravitation is G1, and working machine transmission shaft 6 self gravitation is G3.The stressed F=k*L ' of spring 7=G1+G3, k is the elasticity coefficient of spring 7, selects suitable spring 7 to make k*L=G1.Setting calculates corresponding Famax according to the wind speed V wind max limited, and regulates the gravity G1 connecting wind wheel transmission shaft to make Famax=G1.
When F axle direction vertically upward time; if F axle >F axle max; total stress value of wind wheel transmission shaft 4 is F axle-G1; and it is identical with F axle direction, vertically upward; thus causing wind wheel transmission shaft 4 upward sliding, last round key A10 skids off the square keyway A11 in coupling arrangement 5, disconnects and connecting; working machine quits work, and realizes protection mechanism.
When F axle direction vertically downward time, spring 7 receives compression and moves downward with the transmission device 6 of working machine mounted thereto downwards.The power that spring receives is: and F spring=k* (L '+△ L)=G1+G3+F axle, △ L is the distance that the transmission device 6 of spring 7 and working machine moves down.As F axle=F axle max: △ L=L, the round key B14 on the transmission device 6 of working machine just in time skid off the square keyway B12 in coupling arrangement 5, disconnect and connecting, working machine quits work, and realizes protection mechanism.
Working procedure of the present invention is as follows:
When the axial force that slant gear transmission makes wind wheel transmission shaft 4 produce upwards; when this axial force is greater than wind wheel transmission shaft 4 self gravitation; wind wheel transmission shaft 4 self be subject to vertically upward make a concerted effort and move up; the round key A10 of last wind wheel transmission shaft 4 skids off the square keyway A11 in coupling arrangement 5; whole transmission joint disconnects; working machine quits work, and realizes protection mechanism.And on wind wheel transmission shaft 4 boss in addition, to prevent wind wheel transmission shaft 4 because moving up the excessive and casing 15 that flies out.
Wind wheel transmission shaft 4 is placed perpendicular to ground, when the axial force that slant gear transmission makes wind wheel transmission shaft 4 produce perpendicular to ground, working machine transmission shaft 6 is subject to self gravitation, the spring force vertically upward that spring 7 gives and the axial force vertically downward that wind wheel transmission shaft 4 gives and gravity, along with the increase axial force vertically downward of wind-force constantly increases, when reaching set limit, resultant direction suffered by working machine transmission shaft 6 moves downward downwards, the round key B14 of last working machine transmission shaft 6 skids off the square keyway D12 in coupling arrangement 5, whole transmission joint disconnects, working machine 18 quits work, realize protection mechanism.
Claims (3)
1. a wind energy vertical-transmission system protection device, comprise wind wheel (1), working machine transmission shaft (6), the keyway A(9 with wind wheel rotatingshaft (2)), casing (15), it is characterized in that: also comprise large helical gear (3), wind wheel transmission shaft (4), coupling arrangement (5), elastic supporting member for supporting optical member (7), boss (8), keyway A(9), round key A(10), square keyway C(11), square keyway D(12), keyway B(13), round key B(14); The bevel pinion (16) be assemblied on wind wheel rotatingshaft (2) engages each other with the large helical gear (3) be assemblied on wind wheel transmission shaft (4); By wind wheel rotatingshaft (2), bevel pinion (16) is installed; Wind wheel transmission shaft (4) is provided with keyway A(9 away from one end of large helical gear (3)), round key A(10) with keyway A(9) coordinate, and by keyway A(9) connect with wind wheel transmission shaft (4); Casing (15) is fixed on ground, and the working machine (18) with working machine transmission shaft (6) is connected with casing (15) by elastic supporting member for supporting optical member (7); Offer keyway B(13 at working machine transmission shaft (6) away from the one end be connected with elastic supporting member for supporting optical member (7)), round key B(14) with keyway B(13) coordinate; By with connect working machine transmission shaft (6) and connect, one end of coupling arrangement (5) offers and key A(10) the square keyway C(11 that matches), the other end offers and round key B(14) the square keyway D(12 that matches); Wind wheel transmission shaft (4) and working machine transmission shaft (6) and square keyway C(11), square keyway D(12) coordinate; Boss (8) is positioned on wind wheel transmission shaft (4), in large helical gear (3) and keyway A(9) between; L-type support (17) one end is fixed on casing (15), and the other end is suspended from position between boss (8) and large helical gear (3).
2. a wind energy vertical-transmission system protection device as claimed in claim 1, is characterized in that: described elastic supporting member for supporting optical member (7) can be spring (7).
3. a wind energy vertical-transmission system protection device as claimed in claim 1, is characterized in that: described large helical gear (3) is big column helical gear or large circular cone helical gear; Described bevel pinion (16) is small column helical gear or conicle helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261896.4A CN103306908B (en) | 2013-06-26 | 2013-06-26 | Protecting device of wind energy perpendicular transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261896.4A CN103306908B (en) | 2013-06-26 | 2013-06-26 | Protecting device of wind energy perpendicular transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306908A CN103306908A (en) | 2013-09-18 |
| CN103306908B true CN103306908B (en) | 2015-03-04 |
Family
ID=49132514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310261896.4A Expired - Fee Related CN103306908B (en) | 2013-06-26 | 2013-06-26 | Protecting device of wind energy perpendicular transmission system |
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| Country | Link |
|---|---|
| CN (1) | CN103306908B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU645766A2 (en) * | 1977-04-22 | 1979-02-05 | Особое Конструкторское Бюро Станкостроения | Overload protection device for machine-tools |
| DE3629620A1 (en) * | 1986-08-30 | 1988-03-03 | Burkhardt Volker | Apparatus for transporting material on conveying rollers |
| CN2051312U (en) * | 1988-05-25 | 1990-01-17 | 桂林恭城电扇厂 | Safety clutch |
| EP2224128A2 (en) * | 2009-02-27 | 2010-09-01 | Schwieger, Hartwig | Wind power plant with braking system |
| CN201976413U (en) * | 2010-11-18 | 2011-09-21 | 贵州平水机械有限责任公司 | Dynamic overload-protecting device for cotton-picking head |
| CN102278284A (en) * | 2011-07-12 | 2011-12-14 | 邹本鉴 | Automatic governing wind driven generator load device |
| CN203430712U (en) * | 2013-06-26 | 2014-02-12 | 江苏大学 | Protection device of wind energy vertical drive system |
-
2013
- 2013-06-26 CN CN201310261896.4A patent/CN103306908B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU645766A2 (en) * | 1977-04-22 | 1979-02-05 | Особое Конструкторское Бюро Станкостроения | Overload protection device for machine-tools |
| DE3629620A1 (en) * | 1986-08-30 | 1988-03-03 | Burkhardt Volker | Apparatus for transporting material on conveying rollers |
| CN2051312U (en) * | 1988-05-25 | 1990-01-17 | 桂林恭城电扇厂 | Safety clutch |
| EP2224128A2 (en) * | 2009-02-27 | 2010-09-01 | Schwieger, Hartwig | Wind power plant with braking system |
| CN201976413U (en) * | 2010-11-18 | 2011-09-21 | 贵州平水机械有限责任公司 | Dynamic overload-protecting device for cotton-picking head |
| CN102278284A (en) * | 2011-07-12 | 2011-12-14 | 邹本鉴 | Automatic governing wind driven generator load device |
| CN203430712U (en) * | 2013-06-26 | 2014-02-12 | 江苏大学 | Protection device of wind energy vertical drive system |
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| Publication number | Publication date |
|---|---|
| CN103306908A (en) | 2013-09-18 |
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