CN204511775U - There is the wind-driven generator of driftage protection capstan winch - Google Patents

Abstract

The utility model relates to a kind of wind-driven generator with driftage protection capstan winch, comprises wind wheel, generator, support and tail vane device, and a driftage protection capstan winch, comprises pulley assembly, winch and wirerope; Wherein, this pulley assembly comprises first, second static pulley and movable pulley; Winch comprises pedestal, reel, sprocket driving assembly, gear-driven assembly, double-way connection mechanism, automatic spacing switch and motor; Sprocket driving assembly is made up of minor sprocket, hinge wheel and chain; Gear-driven assembly is made up of the first and second transmission shafts, the first and second gear pairs; Wirerope upper end is fixed on frame support after sequentially walking around the first and second static pulley of pulley assembly, movable pulley; described wirerope lower end is then wound on the reel of winch; utilize the special capstan winch of driftage of the present utility model can control the driftage of the tail vane device of wind-driven generator according to wind-force size automatic or manual, compact structure, working stability, the long service life of special capstan winch are protected in this driftage.

Description

There is the wind-driven generator of driftage protection capstan winch

Technical field

The utility model relates to a kind of small-sized wind power generator, particularly a kind of small-sized wind power generator being provided with control tail vane yaw device.

Background technique

For the common compact wind-driven generator shown in Fig. 1, the small-sized wind power generator of usual tail rudder device mainly comprises one and is arranged on wind wheel organization 11, generator 12, support 13 on wheel hub and a tail vane device 14.Wherein, support 13 is arranged on the top of pylon 16 by single-revolution mechanism 15.Tail vane device 14 comprises tail boom 141 and tail plate 142, and the front end of tail boom 141 is rotatably connected to support 13 by the fixed base be arranged on rear side of support 13.Make due to the setting of fixed base the rotating shaft of tail boom 141 specifically roll with one and hypsokinesis angle is installed, make to act on gravity on tail boom 141 and tail plate 142 all the time to the gravity distance that 14 1, tail vane device is rotated down.The effect of tail plate 142 by wind is always in down wind position, during little wind, the direction that tail boom 141 and tail plate 142 extend is substantially mutually vertical with wind wheel plane, and namely wind direction is substantially perpendicular to wind wheel plane, wind wheel farthest absorbs wind energy, as shown in Figure 2 A; During strong wind, wind-force effect overcomes gravitational moment, and the direction that tail boom 141 and tail plate 142 are extended is at a certain angle with wind wheel plane, and namely wind direction is not orthogonal to wind wheel plane, the reduced capability of wind wheel absorption wind energy; During super large wind, wind-force effect overcomes gravitational moment, and make tail boom 141 and tail plate 142 and wind wheel plane substantially parallel, namely wind direction is arranged essentially parallel to wind wheel plane, absorbs wind energy ability and substantially eliminates, and reaches protection blower fan object, as shown in Figure 2 B.But; because tail vane device 14 is installed with specific setting angle, and its deflection gravitational moment is difficult to be set to optimal parameter, and wind-force has the characteristic such as instantaneous grade and direction sudden change; when strong wind and super large wind, this tail vane device 14 is difficult to the object realizing driftage protection automatically.

Therefore, really need badly and improved for the lateral deviation boat operator guards of the problem existing for above-mentioned prior art to small-sized wind power generator, make the operational safety performance of small-sized protection wind-driven generator obtain good guarantee.

Summary of the invention

The purpose of this utility model is to provide a kind of small-sized wind power generator with driftage protection capstan winch, to ensure its operation stability and Security.

For achieving the above object, wind-driven generator of the present utility model is except wind wheel, generator, support and tail vane device, additionally provide a kind of special driftage protection capstan winch, described driftage protection capstan winch, comprises a pulley assembly, a winch and a wirerope; Wherein said winch comprises a pedestal, a reel, a sprocket driving assembly, a gear-driven assembly, a two-way coupling mechanism, an automatic spacing switch, and a motor; Wherein, described sprocket driving assembly comprises minor sprocket, hinge wheel and chain; Described gear-driven assembly comprises the first transmission shaft, the first gear pair, second driving shaft, the second gear pair; Be fixed on support after pulley assembly is walked around in the upper end of described wirerope, the lower end of described wirerope is then wound on the reel of winch, on the contrary by the folding and unfolding of wirerope by tail vane device basically perpendicular to the direction of wind wheel deflect to substantial horizontal in the direction of wind wheel or.

Advantageously, the feature of wind-driven generator of the present invention is also, described double-way connection mechanism is included in the first transmission shaft and is provided with one section of screw axis near hinge wheel one end, this section of screw axis forms wire rod thread with the tapped hole being located at hinge wheel inside accordingly and combines, outside hinge wheel, additionally provide a thumb wheel be rotatably enclosed within screw axis, two fingers are displaced in the circular arc pin-and-hole of thumb wheel inside through this screw axis is rotatable; Inside hinge wheel, provide ratchet-pawl component and fixed tray, between hinge wheel and ratchet, between ratchet and fixed tray, be provided with friction plate, rotate together with fixed tray to be combined with the first transmission shaft by flat key.Ratchet, fixed tray and friction plate are all set on the first transmission shaft.Described double-way connection mechanism not only allows sprocket driving assembly driven gear transmitting assemblies and reel to do forward and reverse rotation, when the tail vane of wind-driven generator is in the position being substantially perpendicular to wind wheel, the reel of winch can also be made to be in the braking state of self-locking.

Further, described automatic spacing switch is arranged on automatic spacing switch bracket, described automatic spacing switch comprises a slip nut, the first and second position limit switches and the first and second spacing briquettings, described slip nut is arranged on the axial threaded stem extended outward of second driving shaft, the rotation of the enlarging limit slip nut on described limit switch bracket, makes slip nut can only threadingly bar axial displacement when threaded stem rotates.By the setting of described automatic spacing switch, the reel of winch is made to rotate in the scope preset.

Further, the outside of described thumb wheel additionally provides the manual turntable that is provided with polygonal endoporus, and this manual turntable is rigidly connected by multiple bolt and thumb wheel, utilizes the driving tool of correspondingly-shaped can the rotation of manual drives rotating disk.

Advantageously, lifting drum surface is also provided with the spiral grooves holding wirerope, is wound on reel when wirerope is packed up along groove, and this lifting drum outside is also provided with the cross spacing bar preventing wirerope from departing from spiral chute.

Accompanying drawing explanation

The schematic perspective view of Fig. 1 illustrates a kind of existing small-sized wind power generator with tail vane device.

Fig. 2 A and 2B is that small-sized wind power generator is respectively at the schematic diagram that little wind and high wind conditions lower tail rudder arrangement are gone off course.

Fig. 3 is the schematic perspective view of the small-sized wind power generator according to the utility model with tail vane device driftage capstan winch.

Fig. 4 is the schematic perspective view that the small-sized wind power generator with tail vane device driftage capstan winch of the present utility model saves the later amplification of pylon.

Fig. 5 is the schematic side view showing the winch structure of the tail vane driftage capstan winch of small-sized wind power generator of the present utility model from the display of chain wheel driving mechanism side.

Fig. 6 is the sectional drawing of the winch structure showing the tail vane driftage capstan winch of small-sized wind power generator of the present utility model along the I-I line in Fig. 7.

Fig. 7 is the schematic perspective view of the winch structure of the tail vane driftage capstan winch showing small-sized wind power generator of the present utility model.

Fig. 8 is the exploded perspective schematic diagram of the winch thumb wheel structure of the tail vane driftage capstan winch showing small-sized wind power generator of the present utility model.

Fig. 9 is the schematic perspective view of the winch thumb wheel of the tail vane driftage capstan winch of small-sized wind power generator of the present utility model.

Figure 10 is the schematic perspective view of the lifting drum of the tail vane driftage capstan winch of small-sized wind power generator of the present utility model.

Embodiment

Fig. 3 is the schematic perspective view of the small-sized wind power generator according to the utility model with tail vane device driftage capstan winch, and Fig. 4 is the schematic perspective view that the small-sized wind power generator with tail vane device driftage capstan winch of the present utility model omits the later amplification of pylon.As shown in Figure 3, the structure of small-sized wind power generator 200 of the present utility model and prior art basic simlarity, also comprise wind wheel organization 21, generator 22, support 23 and tail vane device 24.Wherein, support 23 is arranged on the top of pylon 26 by single-revolution mechanism 25.See Fig. 4, tail vane device 24 comprises tail boom 241 and tail plate 242, and the front end of tail boom 241 is rotatably connected on the fixed base on rear side of support 23 by a rotating shaft.Similarly, this fixed base is set to make the rotating shaft of tail boom 241 specifically to roll with one and hypsokinesis angle is installed, and makes to act on gravity on tail boom 241 and tail plate 242 all the time to the rotational gravity distance that 24 1, tail vane device is downward.Improvements of the present utility model there are provided a kind of tail vane driftage capstan arrangement, comprise and be located at support 23 and the pulley assembly 30 on tail vane device 24, and the winch 40(be fixed in the mounting base of pylon 26 inside is shown in Fig. 3).It is inner that wirerope G is arranged in pylon 26, and its upper end is rotated provide tractive force through the support being fixedly connected on support 23 after pulley assembly 30 is overcome gravitational moment to tail vane transposition 24, and its lower end is then wound on the reel 42 of winch 40.

Particularly, described pulley assembly 30 comprises one first static pulley, one second static pulley and a movable pulley (not identifying in figure).Described movable pulley is arranged on the position of tail boom 241 lateral distance rotating shaft certain distance; Correspondingly, the first static pulley is arranged on the horizontal stand of support 23 side; It is inner that second static pulley is then arranged on support 23.The upper end of this wirerope G is fixed on horizontal stand end, and successively through movable pulley, the first static pulley, the second static pulley, then inner by pylon 26, be finally wound on the reel 42 of winch 40.When wind-force changes time, wind-driven generator control unit of the present utility model controls winch 40 winding steel cable G automatically according to wind-force size, act on the drag torque on tail boom 41 by movable pulley, make tail boom 241 under the traction of wirerope G, overcome gravitational moment and rotate around tail boom 241 rotating shaft towards level in the direction of wind wheel 21; Or release wirerope G, allow tail boom 241 rotate towards the direction perpendicular to wind wheel 21 around the shaft under gravitational moment effect, thus realize controlling the automatic driftage of tail vane device 24.At some in particular cases, also can use manual wrench H indicated in Fig. 4, drive winch 40 folding and unfolding wirerope G in a manual manner.

Lower mask body describes the structure of winch 40 by reference to the accompanying drawings in detail.As shown in Fig. 5, Fig. 6 and Fig. 7, this winch 40 comprises pedestal 41, reel 42, sprocket driving assembly, gear-driven assembly, automatic spacing switch and motor M.

Pedestal 41 is shaped, substantially in U-tee section by the overall pressing mold of sheet metal.Be provided with the stationary axle 43 extended in the horizontal direction between the main wall plate of pedestal 41 both sides, the two ends of this stationary axle 43 are fixed on the main wall plate of pedestal 41 respectively by fastening piece 431.Reel 42 two ends are all rotatably installed on by deep groove ball bearing 421 outside the axle sleeve of stationary axle 43, and motor M is then arranged on the below of reel 42.

As seen from Figure 9, reel 42 surface is provided with spiral grooves 422, and one end of spiral grooves 422 forms a fixed hole 423, is provided with a screw at the sidewall of this fixed hole 423, and is fixed in fixed hole 423 by wirerope G with a fastening screw.Along with the rotation of the reel 42 of winch 40, the wirerope G packed up is arranged in reel 42 surface along spiral grooves 422.Be provided with Horizontal limiting bar 423 at a distance of the position of the surperficial certain distance of reel 42, the effect preventing wirerope G from deviating from from spiral grooves 422 can be played.The wirerope length that can hold of the spiral grooves 422 on reel 42 surface slightly larger than tail boom 41 from being parallel to location restore that wind wheel 21 extends completely to the wirerope length be substantially perpendicular to required for position that wind wheel 21 extends.

Motor M can adopt DC speed-reducing.Sprocket driving assembly mainly comprises the minor sprocket 51 being located at motor M output terminal, is located at the hinge wheel 52 of gear-driven assembly input end, and chain 53.This minor sprocket 51 is fixed on pedestal 41 side by support.This gear-driven assembly mainly comprises one first transmission shaft 61,1 first gear pair 62, second driving shaft 63 and one second gear pair 64.The hinge wheel 52 of sprocket driving assembly is combined by a two-way coupling mechanism with the input end of the first transmission shaft 61 of gear-driven assembly, drives the first transmission shaft 61 to do clockwise or inhour rotation under the driving of motor M.The other end of the first transmission shaft 61 is combined by the small gear of flat key with the first gear pair 62.The gearwheel of the first gear pair 62, the small gear of the second gear pair 64 are combined by flat key with second driving shaft 63.Be rigidly connected between the gearwheel of the second gear pair 64 and reel 42.Like this, the moment of rotation that motor M exports, is slowed down step by step by sprocket driving assembly and gear-driven assembly and is passed to reel 42, thus band movable reel 42 rotates folding and unfolding wirerope G.

Gear-driven assembly input end, namely the input end of the first transmission shaft 61 is provided with square threaded form and forms one section of screw axis 611, and corresponding to the screw thread of sprocket driving assembly hinge wheel 52 center hole inside, both form wire rod thread and combine.Double-way connection mechanism mainly comprises the thumb wheel 54, finger 55 and the manual turntable 56 that are located at hinge wheel 52 outer end, and is located at ratchet 57 and ratchet 58, fixed tray 59 and the friction plate 591 of hinge wheel 52 the inner.First transmission shaft 61 is combined with fixed tray 59 by flat key.Be provided with ratchet in the surrounding of ratchet 57, combine with corresponding ratchet 58 and torsion spring 581 and form one-way brake.A pair finger 55 is arranged in the screw axis 611 of the first transmission shaft 61 and in the circular arc pulling hole 541 being rotatably displaced into thumb wheel 54 center hole inside (see Figure 10), makes this only can rotate in the interval that this circular arc pulling hole 541 limits finger 55.Between manual turntable 56 and thumb wheel 54, and it is integral to be rigidly connected with bolt respectively between thumb wheel 54 and hinge wheel 52.During manual folding and unfolding wirerope, can stir inner hexagonal hole on manual turntable 56 by special or general inner hexagon spanner, working principle and motorized motions are substantially identical; Judgement dependence uniquely unlike withdrawing rope limit position manually completes.

Under supposing that wirerope G is in whole d/d state, tail vane device 24 is in the position work being substantially perpendicular to wind wheel 21, now, DC speed-reducing M does not rotate, and hinge wheel 52, ratchet 57, keeps certain axial clearance between fixed tray 59 and friction plate 591.Because tail vane device 24 is by gravitational moment effect, self-deploy trend, when it launches, the reel 42 of winch 40 has the trend of reversion release wirerope G under the external traction force effect of wirerope G, thus reel 42 is pulled to rotate, this trend is finally transferred to lead screw shaft 611, lead screw shaft 611 is reversed prior to hinge wheel 52, under the effect of feed screw nut principle, hinge wheel 52, ratchet 57, fixed tray 59, friction plate 591 is pressed together, now ratchet and pawl mechanicm reverses owing to can restrain ratchet 57, thus the braking action of ratchet-ratchet comes into force, make the first transmission shaft 61 that further reversion can not occur, thus make the reel 42 of winch 40 be in self-locking and braking state.

During winding steel cable G, DC speed-reducing M rotates forward, and hinge wheel 52 is by rotating clockwise shown in Fig. 7, and hinge wheel 52 is in axial direction to intrinsic displacement.Like this, hinge wheel 52, friction plate 591, ratchet 57 and fixed tray 59 compress mutually, hinge wheel 52 after compression, friction plate 591, ratchet 57, fixed tray 59 frictional force effect next play rotation, fixed tray 59 drives lead screw shaft 611 to rotate by flat key, first transmission shaft 61 is rotated clockwise together along with hinge wheel 52, does not now form braking between ratchet 57 and ratchet 58.

When DC speed-reducing M reverses, hinge wheel 52 rotates counterclockwise and in axial direction to a bit of distance of outer displacement, hinge wheel 52, friction plate 591, ratchet 57 and fixed tray 59 axially depart from, although now ratchet-ratchet is in the rotation that braking state can not stop lead screw shaft 611.Hinge wheel 52 to reverse several angle relative to lead screw shaft 611, the thumb wheel 54 be fixed together with hinge wheel 52 and the finger 55 be arranged on the first transmission shaft 61 contact, drive the first transmission shaft 61 to rotate counterclockwise together, the release rate of wirerope G is determined by the rotating speed of direct current generator M.

The opposite side arranging sprocket driving assembly at pedestal 41 is provided with automatic spacing switch bracket 71, and namely automatic spacing switch is fixedly mounted on this support 71.Automatic spacing switch comprises the spacing briquetting 73a of slip nut 72, first and the second spacing briquetting 73b.Slip nut 72 is arranged on the axial threaded stem 631 extended outward of second driving shaft 63, and the rotation of the enlarging limit slip nut 72 on limit switch bracket 71, so when threaded stem 631 rotates, slip nut 72 can only threadingly bar 631 axial displacement.Limit switch briquetting 74a and 74b is fixed on slip nut 72, and limit switch briquetting 74a and 74b has kidney slot feature, can adjust relative to the position of slip nut 72.When limit switch briquetting 74a and 74b depresses limit switch 73a and 73b, limit switch 73a and 73b feedback signal, control motor M and stop; Two position limit switch 73a and 73b and briquetting 74a and 74b control the limit position of folding and unfolding wirerope G respectively.

Working principle of the present utility model is as follows:

When wind speed improves, time such as more than 25 meter per second, system detects automatically or artificial judgment wind-driven generator M rotating speed improves, and now for packing up wirerope G, tail vane device 24 is rotated to level in the position of wind wheel 21, then actuating motor M makes described hinge wheel 52 rotate along the clockwise direction shown in Fig. 7.The screw axis 611 of described first transmission shaft 61 is horizontal relative to described hinge wheel 52 towards X-direction displacement, hinge wheel 52, ratchet 57, fixed tray 59 and friction plate 591 compress mutually, and are driven together with the first transmission shaft 61 by the flat key between fixed tray 59 with the first transmission shaft 61 and rotate.Like this, first transmission shaft 61 is by the elementary deceleration of the first gear pair 62, rotating power square is passed to second driving shaft 63, via the second gear pair 64 on second driving shaft 63, running torque is being passed to winding reel 42, second gearwheel of gear pair 64 and being rigidly connected of winding reel 42, thus rotation winding reel 42 winding steel cable G overcomes the gravitational moment of tail vane device 24 and rotates tail vane tail boom 241.And now ratchet 57 rotates clockwise and does not brake between ratchet and ratchet.After tail vane device 24 turns to desired angle according to the instruction of control unit, motor M shuts down, and ratchet 57 stops operating, and now brakes between ratchet 57 and corresponding ratchet 58, to prevent tail vane device 24 reverse displacement under the effect of gravitational moment.The wirerope length that each turn of winding reel 42 is packed up is equal, and generally, reel 42 rotates 3 ~ 5 circles just can reach usage requirement.Particularly as shown in the figure, wirerope G can be protected not deviate from from the spiral chute 421 of winding reel 42 at the position-limited lever 424 set by the outside of reel 42.

When wind speed decreased extremely, such as, below 20 meter per seconds, wind-driven generator M rotating speed reduces, tail vane device 24 is now made to launch, rotate to the position perpendicular to wind wheel 21, then actuating motor M makes described hinge wheel 52 rotate in the counterclockwise direction, described first transmission shaft 61 and screw axis 611 thereof are relative to horizontal opposite direction displacement one segment distance towards A of described hinge wheel 52, now, hinge wheel 52, friction plate 591, ratchet 57 and fixed tray 59 mutually estranged, the frictional force of friction plate 52 can not compress ratchet 57 and rotate together, that is ratchet 57 is not along with described first transmission shaft 61 rotates together, and now the first transmission shaft 61 and screw axis 611 thereof rotate counterclockwise the other end of thumb wheel pin-shifting hole 541 with finger 55, thus promote screw axis 611 i.e. the first transmission shaft 61 by hinge wheel 52 by finger 54 and rotate in the counterclockwise direction.Like this, first transmission shaft 61 is by the elementary deceleration of the first gear pair 62, rotating power square is passed to second driving shaft 63, via the second gear pair 64 on second driving shaft 63, running torque is being passed to winding reel 42, thus rotate winding reel 42 release elevator wirerope G slowly, make tail vane device 24 rotate towards the direction perpendicular to wind wheel 21 under himself gravitational moment effect downwards.

Between manual turntable 56 and thumb wheel 54, be rigidly connected respectively by multiple bolt between thumb wheel 54 and hinge wheel 52 and rotate.During manual folding and unfolding wirerope G, driving tool that can be special or general, the such as hexagon wrench of the inner hexagonal hole of rotating disk 56, manual drives rotating disk 56 rotates, and working principle and motorized motions are substantially identical; Judgement dependence uniquely unlike the limit position of folding and unfolding wirerope manually completes.

Although illustrate by way of example above, described the present invention's preferably embodiment, protection domain of the present utility model is not limited in above-mentioned explanation, but all technical characteristicss provided by appended claim and technical equivalents thereof define.Persons skilled in the art are understandable that, do not deviating under the essence and marrow prerequisite that the present invention instructs, any modifications and variations may still drop within the protection domain of the utility model claim.

Claims (6)

1. have a wind-driven generator for driftage protection capstan winch, comprise wind wheel (21), generator (22), support (23) and tail vane device (24), support (23) is arranged on pylon (26) top by single-revolution mechanism (25), it is characterized in that:

Described wind-driven generator is also provided with a driftage protection capstan winch, comprises a pulley assembly (30), a winch (40) and a wirerope G; Wherein

Described winch (40) comprises a pedestal (41), a reel (42), a sprocket driving assembly, a gear-driven assembly, a two-way coupling mechanism, an automatic spacing switch, and a motor M; Wherein

Described sprocket driving assembly comprises minor sprocket (51), hinge wheel (52) and chain (53); Described gear-driven assembly comprises the first transmission shaft (61), the first gear pair (62), second driving shaft (63), the second gear pair (64);

Described wirerope G upper end is walked around pulley assembly (30) and is fixed on support (23), described wirerope G lower end is then wound on the reel (42) of winch (40), by the folding and unfolding of wirerope G, tail vane device (24) is basically deflected to substantial horizontal in the direction of wind wheel (21) perpendicular to the direction of wind wheel (21), or deflection in the other direction.

2. wind-driven generator as claimed in claim 1, it is characterized in that described double-way connection mechanism is included in the first transmission shaft (61) and is provided with one section of screw axis (611) near hinge wheel (52) one end, this section of screw axis (611) forms wire rod thread with the tapped hole being located at hinge wheel (52) inside accordingly and combines, additionally provide a thumb wheel (54) be rotatably set on screw axis (611) in hinge wheel (52) outside, two fingers (55) are displaced in the inner circular arc pin-and-hole (541) of thumb wheel (54) through this screw axis (611) is rotatable; A ratchet-pawl component (57,58) is provided in hinge wheel (52) inner side, a fixed tray (59), and the friction plate (591) be clipped between hinge wheel (52) and ratchet (57), between ratchet (57) and fixed tray (59), fixed tray (59) is rotated together with being combined with the first transmission shaft (61) by flat key, and ratchet (57), fixed tray (59) and friction plate (60) are all set on the first transmission shaft (61).

3. wind-driven generator as claimed in claim 1, it is characterized in that described automatic spacing switch is arranged on automatic spacing switch bracket (71), described automatic spacing switch comprises a slip nut (72), first and second position limit switch (73a, 73b) and the first and second spacing briquetting (74a, 74b), described slip nut (72) is arranged on the threaded stem (631) that second driving shaft (63) axle extends outward, the rotation of the enlarging limit slip nut (72) on described limit switch bracket (71), make slip nut (72) can only threadingly bar (631) axial displacement when screw thread thick stick (631) rotates.

4. wind-driven generator as claimed in claim 1, it is characterized in that reel (42) surface of winch (40) is provided with the spiral grooves (421) holding wirerope G, wirerope G is wrapped in groove (421) when packing up, also be provided with wirerope fixed hole (422), be provided with a screw (423) in the side of this fixed hole (422).

5. wind-driven generator as claimed in claim 1, is characterized in that reel (42) outside of this winch (40) is also provided with the cross spacing bar (424) preventing wirerope G from spinning off in spiral grooves (421).

6. the wind-driven generator as described in claim 1-5 any one, it is characterized in that additionally providing the manual turntable (56) that is provided with polygonal endoporus in the outside of thumb wheel (52), this manual turntable (56) is rigidly connected by bolt and thumb wheel (52), utilizes corresponding polygonal driving tool to rotate by manual drives rotating disk (56).