CN104832369A - Wheel hub automatic countering system and control method and wind power generator - Google Patents
Wheel hub automatic countering system and control method and wind power generator Download PDFInfo
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- CN104832369A CN104832369A CN201510188953.XA CN201510188953A CN104832369A CN 104832369 A CN104832369 A CN 104832369A CN 201510188953 A CN201510188953 A CN 201510188953A CN 104832369 A CN104832369 A CN 104832369A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a wheel hub automatic countering system and control method and a wind power generator. The wheel hub automatic countering system comprises a controller, and a brake device, a countering proximity switch and an automatic locking pin which are connected with the controller. The countering proximity switch is used for detecting the positions of positioning pin holes arranged on a wheel hub, acquiring the positions of a countering initial pin hole and a countering target pin hole and also used for feeding back trigger signals corresponding to the positions of the countering initial pin hole and the countering target pin hole to the controller. The controller is used for confirming whether rotating speed of the wheel hub is reduced to the preset safe braking speed, countering rotating speed and final countering rotating speed and controlling the brake device and telescoping of the automatic locking pin according to the detected rotating speed of the wheel hub and the trigger signals fed back by the countering proximity switch. Countering and locking of the wheel hub can be automatically controlled and realized by application of the wheel hub automatic countering system and control method.
Description
Technical field
The present invention relates to wind power generation field, particularly a kind of wheel hub automatic matching system and controlling method and wind-driven generator.
Background technique
At present, when wind-driven generator need be safeguarded blower fan because of fault or maintenance, for guaranteeing the safety of attendant, the wheel hub spring bolt of rotation need be pinned, preventing it from rotating.Existing dual-feed asynchronous wind power generator adopts high speed shaft braking, manually to pin.Such as: when blower fan needs maintenance shut-downs, Systematical control blade is regained, and under the effect of aerodynamic brake, wheel hub reduces speed now.When rotating speed lower than safety to pin rotating speed and pin-and-hole will forward bearing pin position to time, manual control acts on the hydraulic brake system of high speed axle head, is pinned by wheel hub, more manually to be inserted by bearing pin.But in alignment procedure, manually according to the rotating speed speed of wheel hub, when pin-and-hole also has with a certain distance from bearing pin, the braking device of pre-cooling high speed axle head, the pin-and-hole that will control like this on wheel hub can stop in place, facilitates latch.
Therefore, this artificial judgment braking has following deficiency to the method for pin:
1) wheel hub pin-and-hole and bearing pin must align, and could successfully be inserted by spring bolt.
2) because artificial judgment error is large, stopping distance is uncontrollable, accurately to pin difficulty, need repeated multiple times could success, the loaded down with trivial details and inefficiency to pin process.
Summary of the invention
In view of this, one of object of the embodiment of the present invention is to propose a kind of wheel hub automatic matching system, can automatically control and realize wheel hub to pin and locking.
Further, this wheel hub automatic matching system comprises: controller and the braking device be connected with described controller, to pin proximity switch and auto lock pin; Described to pin proximity switch for detecting the position of the positioning pin hole that described wheel hub is arranged, obtain the initial pin-and-hole of pin and the position to pin target pin-and-hole, and for feeding back with described the initial pin-and-hole of pin and the trigger signal corresponding to the position of pin target pin-and-hole to described controller; Described controller for determining whether the rotating speed of described wheel hub is down to default safety brake rotating speed, to pin rotating speed and final to pin rotating speed, and controls the flexible of described braking device and described auto lock pin according to the rotating speed of the described wheel hub detected and the described trigger signal to the nearly switch feedback of pin joint; Described braking device is used for braking described wheel hub according to the control command of described controller; Described auto lock pin is used for according to the control command of described controller, the rotating speed of described wheel hub be down to described final to pin rotating speed time, be inserted into described positioning pin hole and lock described wheel hub.
Alternatively, in certain embodiments, above-mentioned wheel hub automatic matching system also can comprise: put in place detection proximity switch, is arranged on described auto lock pin, is connected with described controller; The described detection proximity switch that puts in place puts in place for determining whether it inserts according to the outreach of described auto lock pin; Or described wheel hub automatic matching system also comprises: put in place detection proximity switch, is arranged on the inwall of described wheel hub, be positioned at the side of described positioning pin hole away from described auto lock pin; Wherein, described in put in place detect proximity switch be connected with described controller, put in place for determining whether it inserts according to the outreach of described auto lock pin.
Alternatively, in certain embodiments, described to the nearly switch-linear hybrid of pin joint on the pin sleeve of described auto lock pin, be connected with described controller, for responding to described positioning pin hole to determine its position.Or, described to the nearly switch-linear hybrid of pin joint on described wheel hub, along the sense of rotation of described wheel hub, to pin proximity switch described in described positioning pin hole arranged in front.
Alternatively, in certain embodiments, described to the nearly switch-linear hybrid of pin joint on described wheel hub time, the quantity of described positioning pin hole is three, and concentric circumference is uniformly distributed on described wheel hub; The described quantity to pin proximity switch is three, and arranges with the pairing of described positioning pin hole.
Alternatively, in certain embodiments, described braking device comprises: brake disc, is arranged on torsion cylinder main shaft on the revolving support of one end of described wheel hub; Described torsion cylinder is connected with described wheel hub; Break, is arranged at the side of described brake disc, is connected with described controller; Described break has braking and discontinuous braking two kinds of mode of operations continuously;
Alternatively, in certain embodiments, described auto lock pin comprises: locking cylinder and spring bolt; Spring bolt is connected with the piston rod of described locking cylinder; Solenoid valve, is connected with described controller and described locking cylinder, flexible with the latch realizing described spring bolt with pull pin for what control described locking cylinder; Wherein, the bearing pin of described spring bolt is taper, and with described positioning pin hole Spielpassung.
Alternatively, in certain embodiments whether, described controller comprises: testing module of putting away the oars, put away the oars for detecting wind-driven generator, and does not put away the oars detecting, controls blade and puts away the oars; Brake control module, for controlling the start and stop of aerodynamic brake and braking device to brake described wheel hub after putting away the oars, makes the rotating speed of described wheel hub be corresponding in turn to be down to described safety brake rotating speed, described to pin rotating speed and described final to pin rotating speed.To pin control module, for receiving the position of the described described positioning pin hole to the nearly switch feedback of pin joint, obtain the initial pin-and-hole of pin and the trigger signal to pin target pin-and-hole; Locking control module, for detect the rotating speed of wheel hub be less than or equal to final to pin rotating speed time, delay time t controls described auto lock pin and inserts described positioning pin hole and lock described wheel hub; Put in place control module, for starting to level detecting apparatus, detecting described auto lock pin and whether inserting described positioning pin hole, and redefine described to performing insertion locking operation behind the position of pin target pin-and-hole when not inserting.。
In addition, the present invention also provides a kind of wind-driven generator, is provided with above-mentioned wheel hub automatic matching system described in any one.Described wheel hub is connected with torsion cylinder, and the step-up drive system of this wind-driven generator adopts the hollow spindle of described torsion cylinder to drive booster engine to drive electrical power generators.
Correspondingly, another object of the embodiment of the present invention is to propose a kind of wheel hub automatically to the controlling method of pin, can automatically control and realize wheel hub to pin and locking.
This wheel hub uses aforementioned wheel hub automatic matching system described in any one to the controlling method of pin automatically, this wheel hub comprises the controlling method of pin automatically: after receiving halt instruction, detect wind-driven generator whether to put away the oars, do not put away the oars if detect, control blade and put away the oars; After determining that blade is put away the oars, start the wheel hub of aerodynamic brake to wind-driven generator and brake, make its reduction of speed to the safety brake rotating speed preset; When detecting that the rotating speed of described wheel hub is down to described safety brake rotating speed, start position pin proximity switch being detected to the positioning pin hole that described wheel hub is arranged, and using first positioning pin hole detecting as to the initial pin-and-hole of pin; Start described braking device, described wheel hub is braked to that its rotating speed is down to is default to pin rotating speed; Detect the rotating speed of described wheel hub be down to described to pin rotating speed time, control braking device and stop braking, and obtain the position of the positioning pin hole that the described wheel hub that after this detects is arranged, and using the positioning pin hole that after this detects as to pin target pin-and-hole; When obtaining the described position to pin target pin-and-hole, control described braking device and continue that braking is carried out to described wheel hub that its rotating speed is down to is described final to pin rotating speed; Detect the rotating speed of described wheel hub be down to described final to pin rotating speed time, control auto lock pin and insert described positioning pin hole and lock described wheel hub.
Alternatively, in certain embodiments, above-mentioned wheel hub also can comprise the controlling method of pin automatically: start to level detecting apparatus, detect described auto lock pin and whether insert described positioning pin hole, if do not insert, then judge whether insert number of times is less than predefined value, if be less than described predefined value, control described auto lock pin and retract, and be again inserted into described positioning pin hole; If insert number of times to be more than or equal to described predefined value, then control described braking device and stop braking, and start described position pin proximity switch being detected to described positioning pin hole; Start described braking device when obtaining the position of described positioning pin hole, detect the rotating speed of described wheel hub be less than described final to pin rotating speed time, control auto lock pin and insert described positioning pin hole and lock described wheel hub.
Relative to prior art, the present invention has following advantage:
When maintenance outage or other need to shut down, the wheel hub automatic matching system adopting the present invention above-mentioned and controlling method thereof, first put away the oars, by aerodynamic brake effect, hub rotation speed be down to safety brake rotating speed; Then, when any proximity switch triggers, controller controls braking device and starts first stage braking, until rotating speed is down to pin rotating speed, stops braking; When wheel hub is to rotate pin rotating speed, and when the proximity switch arranged pin target pin-and-hole in advance triggers, start the braking of second stage, until rotating speed is down to final to pin rotating speed; Last delaying time of controller controls locking cylinder will lock bearing pin insertion positioning pin hole locking wheel hub; this not only safe but also reliable to pin locked mode; realization shutdown, braking, wheel hub locking three process one keys control automatically; without the need to manual intervention; not only operating efficiency can be improved, and operation is reliable quick.
Accompanying drawing explanation
The accompanying drawing of a formation embodiment of the present invention part is used to provide the further understanding to the embodiment of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The schematic diagram of the wheel hub automatic matching system that Fig. 1 provides for the embodiment of the present invention and step-up drive system;
The layout schematic diagram of positioning pin hole and proximity switch in the wheel hub automatic matching system that Fig. 2 provides for the embodiment of the present invention;
In the wheel hub automatic matching system that Fig. 3 provides for the embodiment of the present invention, bearing pin puts in place and detects the layout schematic diagram of proximity switch, and wherein, bearing pin puts in place and detects proximity switch is partial cross;
The schematic diagram of pin-and-hole and bearing pin Spielpassung in the wheel hub automatic matching system that Fig. 4 provides for the embodiment of the present invention;
In the wheel hub automatic matching system that Fig. 5 provides for the embodiment of the present invention, bearing pin puts in place and detects the layout schematic diagram of proximity switch;
The wheel hub that Fig. 6 provides for the embodiment of the present invention is automatically to the controlling method schematic flow sheet of pin.
Description of reference numerals
100 wheel hubs
200 torsion cylinders
300 torsion cylinder supporting bases
400 blades installation revolving support
11 brake discs
12 breaks
20 auto lock pins
21 positioning pin holes
22 pairs of pin proximity switches
23 axis pin bases
30 put in place detection proximity switch
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, when not conflicting, the feature in the embodiment of the present invention and embodiment can combine mutually.
Below in conjunction with accompanying drawing, various embodiments of the present invention are described further:
At present, wind-driven generator, when safeguarding shutdown, need be locked wheel hub and rotate to prevent it; for this reason, the embodiment of the present invention proposes a kind of wheel hub automatically to controlling method and the system of pin, first controls near zero by hub rotation speed by control for brake; bearing pin will be locked again insert, not only safe but also reliable.
system embodiment
Referring to figs. 1 through 3, be respectively the structural representation of the wheel hub automatic matching system of the present embodiment.In the present embodiment, this wheel hub automatic matching system is used for being locked to the wheel hub of wind-driven generator, in this wind-driven generator, at torsion cylinder supporting base 300 place, wheel hub 100 is connected with torsion cylinder 200, and wheel hub 100 is connected with blades installation revolving support 400.
This wheel hub automatic matching system comprises: braking device, to pin proximity switch 22, auto lock pin 20 and controller.Braking device, pin proximity switch 22, auto lock pin 20 to be connected with controller.Here, each several part of wheel hub automatic matching system is made the following instructions:
To pin proximity switch 22 for detecting the position of positioning pin hole 21 that wheel hub 100 is arranged, obtain the initial pin-and-hole of pin and the position to pin target pin-and-hole, and for controller feedback with to the initial pin-and-hole of pin and the trigger signal corresponding to the position of pin target pin-and-hole.Such as, when the rotating speed of wheel hub 100 is down to default safety brake rotating speed, controller starts pin proximity switch 22, first positioning pin hole sensed 21 is the initial pin-and-hole of pin, using to the position of the initial pin-and-hole of pin as location triggered signal, send to controller, after controller receives this location triggered signal, control braking device and wheel hub 100 is braked.
Controller is with braking device, be connected pin proximity switch 22 and auto lock pin 20, whether the rotating speed for detecting wheel hub 100 is down to default safety brake rotating speed, to pin rotating speed and finally to pin rotating speed, according to the rotating speed of the wheel hub 100 detected and the trigger signal to pin proximity switch 22 feedback, control the start and stop of braking device and the flexible of auto lock pin 20.
Braking device is used for the control command according to controller, brakes wheel hub 100.Wherein, when determining the position to the initial pin-and-hole of pin, according to controller instruction, wheel hub 100 being braked, its rotating speed being down to default to pin rotating speed.When detecting that the rotating speed of wheel hub 100 is down to pin rotating speed, controlling braking device and stopping braking, and obtaining the position of the positioning pin hole 21 that the wheel hub 100 that after this detects is arranged, and using the positioning pin hole 21 that after this detects as to pin target pin-and-hole.
Auto lock pin 20 is for the control command according to controller, when obtaining positioning pin hole 21 as position to pin target pin-and-hole, after pin success, match with positioning pin hole 21, be inserted into pin target pin-and-hole by the bearing pin of the delays time to control auto lock pin 20 of controller, locking wheel hub 100.
Like this; when maintenance outage or other need to shut down; the wheel hub automatic matching system of above-described embodiment can be adopted; first the rotating speed of wheel hub 100 controlled to default to pin rotating speed by controlling braking device; and the position of detection and location pin-and-hole 21; again the bearing pin of auto lock pin 20 is inserted positioning pin hole 21 and lock wheel hub 100; thisly can realize automatically to pin to pin locked mode; auto lock; shutdown, braking, wheel hub locking three process one keys control automatically; without the need to manual intervention, not only operating efficiency can be improved, and operation is reliable quick.
As the optional mode of execution of one, above-mentioned wheel hub automatic matching system also can be included in level detecting apparatus, whether should insert positioning pin hole 21 to level detecting apparatus for detecting auto lock pin 20.
Optionally, can be the detection proximity switch that puts in place to level detecting apparatus, the detection proximity switch that puts in place be arranged on the axle sleeve of auto lock pin 20, is connected with controller.The detection proximity switch that puts in place puts in place for determining according to the outreach of auto lock pin 20 whether it inserts.
Or as shown in Figures 1 to 3, the detection proximity switch 30 that puts in place can be arranged on the inwall of wheel hub 100, is positioned at the side of positioning pin hole 21 away from auto lock pin 20.Wherein, the detection proximity switch 30 that puts in place is connected with controller, puts in place for determining according to the outreach of auto lock pin 20 whether it inserts.Put in place detect proximity switch 30 can be corresponding with positioning pin hole 21 respectively, when under the effect of spring bolt at locking cylinder through positioning pin hole 21 time, any one detection proximity switch 30 that puts in place triggers, and is namely considered as spring bolt and inserts successfully.
In above-described embodiment, adopt the detection proximity switch 30 that puts in place accurately can judge whether auto lock pin 20 is inserted in positioning pin hole 21, to guarantee the wheel hub 100 that is locked.
In an embodiment, on above-mentioned axle sleeve pin proximity switch 22 being arranged to auto lock pin 20, be connected with controller, for responding to positioning pin hole 21 to determine its position.
Or, be arranged on wheel hub 100 to pin proximity switch 22, along the sense of rotation of wheel hub 100, in positioning pin hole 21 arranged in front to pin proximity switch 22, be positioned at the front of positioning pin hole 21, arrange in positioning pin hole certain distance in advance.
It should be noted that, when being arranged on wheel hub 100 pin proximity switch 22, the quantity of positioning pin hole 21 can be but be not limited to three, and each positioning pin hole 21 can circumferentially be uniformly distributed on wheel hub 100 with one heart.Accordingly, also to the quantity of pin proximity switch 22 can be but be not limited to three, and arrange with the pairing of positioning pin hole 21.
Such as, as shown in Figure 2, wheel hub 100 is designed with three positioning pin holes 22, circumference is uniform, for guaranteeing that wheel hub 100 accurately can stop at the position of alignment auto lock pin 20 under the effect of break 12, along the sense of rotation of wheel hub 100, the location arrangements of positioning pin hole 21 certain distance has pin proximity switch 22 in advance, is arranged on the axis pin base 23 be arranged at around positioning pin hole 21 pin proximity switch 22.
Alternatively, in the various embodiments described above, braking device can comprise: brake disc 11 and break 12.Brake disc 11 is installed on torsion cylinder main shaft on the pivoting support of wheel hub 100 one end, and torsion cylinder 200 and wheel hub 100 are bolted.Break 12 is arranged at the side of brake disc 11, is connected with controller.Break 12 has braking and discontinuous braking two kinds of mode of operations continuously, is respectively described below:
1) discontinuous braking mode: realize braking by control brake band-type brake and the alternating movement of declutching;
2) continuous braking mode: break is in band-type brake state always and realizes braking.
For wind-driven generator as shown in Figure 1, wheel hub 100 and torsion cylinder are bolted, end near wheel hub 100 one end on the main shaft of torsion cylinder is designed with brake disc 11, in the side of brake disc 11, caliper disc hydraulic brake 12 is housed, break 12 is pressurizeed by hydraulic system thus produces braking effect; The bearing pin of auto lock pin 20 is arranged on the side of brake disc 11.
Wherein, the mode of braking that above-described embodiment adopts is different from the braking of existing high speed shaft, and take lower velocity shaft to brake, such as can take other modes of braking such as the braking of caliper disc shaft brake, oil cylinder braking, like this, by control for brake, the positioning pin hole 21 on wheel hub 100 is accurately parked in the bearing pin position of alignment spring bolt.
Wherein, the interval of the stopping distance S of break 12 is [S
0, 2L
0+ S
0], S
0for the distance that the reaction time delay t time inner wheel hub from being triggered to braking device to pin proximity switch 22 between braking rotates, L
0for gap length therebetween when auto lock pin 20 is inserted into positioning pin hole 21.Stopping distance S is by controlling the size of braking moment, application position and braking force.Herein, braking moment, application position realize regulating to the mounting point of pin proximity switch 22 by arranging, and the size of braking force realizes regulating by the braking force arranging break 12.
It should be noted that, the large I of the braking force of above-mentioned braking device is by following formulae discovery:
The equivalent moment of inertia of known wind wheel is J, and the radius of braking action point is R, and the rotating speed starting to brake is n
2(r/min), the final rotating speed of braking is n
1(r/min), the brake request time is t
0, then braking force F and acceleration a is respectively:
F＝2πJ(n
2-n
1)/60Rt
0(1)
a＝2πR(n
2-n
1)/60t
0(2)
The working pressure of caliper disc shaft brake and the size of clamping force can according to the theory braking force value settings calculated.By control for brake, the positioning pin hole on wheel hub is accurately parked in the position of alignment bearing pin, along sense of rotation, positioning pin hole certain distance S (stopping distance) is furnished with pin proximity switch, for trigging control brakeage in advance.
Wherein, stopping distance S is by following formulae discovery:
ω＝2πn/60
ν＝ωR
S＝(ν
2 2-ν
1 2)/2a (3)
According to braking Distance Calculation formula, known acceleration a and final velocity V
1be zero, as long as so initial velocity V
2known, and braking moment and position controlled, like this, wind wheel just can be parked in same position, thus realize automatically pin is controlled.Here, can adopt the braking method that proximity switch and speed probe combine, the hub rotation speed in above-mentioned formula can provide data by high speed shaft speed probe.Like this, tach signal utilizes existing high speed shaft speed probe, sets up proximity switch to complete the transformation of control system, and structure is simple, and cost is low.
As a kind of Alternate embodiments, in the various embodiments described above, auto lock pin 20 can comprise: the parts such as locking cylinder, spring bolt and solenoid valve.Wherein, spring bolt is connected with the piston rod of locking cylinder.Solenoid valve is connected with controller and locking cylinder, flexible with the latch realizing spring bolt with pull pin for what control locking cylinder.Wherein, spring bolt can be mechanical interlocking pin, and its bearing pin is taper, and with positioning pin hole 21 Spielpassung.
Because active braking distance all can have certain error, here, for guaranteeing that auto lock pin 20 can insert positioning pin hole 21 smoothly, spring bolt can be designed to taper, make spring bolt and positioning pin hole 21 adopt Spielpassung, gap is L
0, with reference to Fig. 4 and Fig. 5, it is respectively positioning pin hole 21 and the Spielpassung of spring bolt bearing pin and the schematic diagram of best stopping distance of above-described embodiment.
In addition, because controller braking from being triggered to break 12 to pin proximity switch 22 responds time delay t, and t time inner wheel hub rotation distance is S
0, for this reason, best desirable stopping distance S=S
0+ L
0, as shown in Figure 5, when wheel hub is after the braking of distance S, bearing pin and the positioning pin hole 21 of auto lock pin 20 coordinate the best.
Wherein, in actual braking process, S
0can be determined by test, and the rotating speed of wheel hub is to braking pin rotating speed n1, to the stopping distance stopped completely, by controlling the size of braking moment and position and braking force, thus can guarantee that its stopping distance S is in interval [S
0, 2L
0+ S
0] in, thus achieve the smooth in pin of bearing pin and pin-and-hole.
It is pointed out that wheel hub smoothly to after pin, the process of inserted pin can adopt oil cylinder automatic plug, and the modes such as artificial plug also can be adopted to complete.
In addition, in the various embodiments described above, following at least one processing mode can also be comprised:
1) above-mentioned controller also for when receiving halt instruction detect wind-driven generator whether put away the oars, detect do not put away the oars time, put away the oars for controlling blade; And, when determining that blade is put away the oars, for starting aerodynamic brake, wheel hub 100 being braked, making its reduction of speed to the safety brake rotating speed preset.
2) above-mentioned controller is also final to pin rotating speed for arranging, receive the position as the positioning pin hole 21 to pin target pin-and-hole is detected to pin proximity switch 22 time, continuing to brake wheel hub 100 for controlling braking device, its rotating speed being down to final to pin rotating speed; And, detect the rotating speed of wheel hub be less than or equal to final to pin rotating speed time, above-mentioned controller inserts positioning pin hole 21 lock wheel hub 100 for controlling auto lock pin 20.
To sum up, in above-described embodiment, whether controller detects wind-driven generator and puts away the oars when receiving halt instruction, then controls blade put away the oars when detecting and not putting away the oars; After putting away the oars, when detect hub rotation speed be down to safety brake rotating speed and switch triggering near to pin joint time, start break wheel hub is braked, make its rotating speed be down to pin rotating speed, now stop braking; When wheel hub is to be rotated further pin rotating speed, and during position to the positioning pin hole that pin proximity switch detects, controller controls braking device and brakes wheel hub, until stop operating; After wheel hub stops operating, delaying time of controller controls oil cylinder and spring bolt is inserted positioning pin hole, locking wheel hub.Here, from control angle, can above-mentioned controller be divided into lower module:
1) to put away the oars testing module, whether putting away the oars for detecting wind-driven generator, not putting away the oars if detect, control blade and put away the oars;
2) brake control module, for controlling the start and stop of braking device and aerodynamic brake.
Such as, when determining that blade is put away the oars, starting the wheel hub 100 of aerodynamic brake to wind-driven generator and braking, make its reduction of speed to the safety brake rotating speed preset.
And for example, when detecting that the rotating speed of wheel hub 100 is down to pin rotating speed, control braking device and stop braking; When obtaining the position of target pin-and-hole, control braking device and continue that braking is carried out to wheel hub 100 that its rotating speed is down to is final to pin rotating speed, this finally to pin rotating speed can be zero or close to zero numerical value.
3) to pin control module, for receiving the position to the positioning pin hole 21 that pin proximity switch 22 feeds back, obtain the initial pin-and-hole of pin and the trigger signal to pin target pin-and-hole.
4) lock control module, for when detecting that the rotating speed of wheel hub is less than or equal to finally to pin rotating speed, control auto lock pin 20 inserts positioning pin hole 21 and locks wheel hub 100.
5) put in place control module, for starting to level detecting apparatus, detecting auto lock pin 20 and whether inserting positioning pin hole 21, and restart control program when not inserting and carry out insertion locking operation.
Such as, if locking control module judges that auto lock pin 20 has inserted positioning pin hole 21, then feed back wheel hub to pin success; Do not insert if judge, then carry out reinserting control.Reinsert control can adopt in this way, e.g., judge whether insert number of times is less than predefined value, if insert number of times to be less than predefined value, control auto lock pin 20 and retract, and be again inserted into positioning pin hole 21.If insert number of times to be more than or equal to predefined value, then control braking device and stop braking, and start the position to pin proximity switch 22 detection and location pin-and-hole 21.Start braking device when obtaining the position of positioning pin hole 21, when detecting that the rotating speed of wheel hub is less than finally to pin rotating speed, control auto lock pin 20 inserts positioning pin hole 21 and locks wheel hub 100.
As can be seen from the various embodiments described above, tool of the present invention has the following advantages:
Wheel hub automatic matching system of the present invention adopts grading automatical control, and first adopt aerodynamic brake of putting away the oars to control, after blower fan is put away the oars, under aerodynamic brake effect, hub rotation speed is progressively reduced to default safety brake rotating speed; To pin proximity switch when the rotating speed of wheel hub is down to safety brake rotating speed, detect the position to the initial pin-and-hole of pin, and send trigger signal to controller, after controller receives trigger signal, control braking device braking; Braking device adopts lower velocity shaft brake control mode, take continuous or discontinuous brake, hub rotation speed is reduced fast, when hub rotation speed is reduced to pin rotating speed, braking device stops braking, when detecting the position to pin target pin-and-hole to pin proximity switch, to controller feedback trigger signal, controller controls braking device braking brake again, completes pin, and controls auto lock pin bearing pin is inserted positioning pin hole.
Based on the various embodiments described above, the embodiment of the present invention additionally provides a kind of wind-driven generator, and this wind-driven generator is provided with any one wheel hub automatic matching system above-mentioned.The wheel hub 100 of this wind-driven generator is connected with torsion cylinder, and the step-up drive system of this wind-driven generator adopts the hollow spindle of torsion cylinder 200 to drive booster engine to drive electrical power generators.
Because any one wheel hub automatic matching system above-mentioned has above-mentioned technique effect, therefore, the wind-driven generator being provided with this wheel hub automatic matching system also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby repeat.
embodiment of the method
With reference to Fig. 6, its be the wheel hub of the present embodiment automatically to the schematic flow sheet of the controlling method of pin, the method uses the wheel hub automatic matching system described in aforementioned any embodiment.In the present embodiment, this wheel hub comprises the following steps the controlling method of pin automatically:
Whether S102: after receiving halt instruction, detect wind-driven generator and put away the oars, do not put away the oars if detect, controls blade and put away the oars.
In this step, when receiving the halt instructions such as maintenance, adopting aerodynamic brake of putting away the oars to control, after blower fan is put away the oars, under aerodynamic brake effect, making hub rotation speed progressively be reduced to default safety brake rotating speed.
S104: after determining that blade is put away the oars, when detecting that the rotating speed of wheel hub 100 is down to safety brake rotating speed, start and the position of positioning pin hole 21 that wheel hub 100 is arranged is detected to pin proximity switch 22, and using first positioning pin hole 21 detecting as to the initial pin-and-hole of pin.
It should be noted that, after being down to safety brake rotating speed, with first positioning pin hole 21 triggered pin proximity switch 22 namely to the initial pin-and-hole of pin, and be braking initial position to the initial pin-and-hole present position of pin, start first stage braking.In the present embodiment, the positioning pin hole 212 that detects pin proximity switch 22 next one can be set for pin target pin-and-hole, namely to pin to pin target pin-and-hole.
S105: start the wheel hub 100 of braking device to wind-driven generator and brake, make its reduction of speed to preset to pin rotating speed.
Wherein, after three blades are put away the oars smoothly, adopt lower velocity shaft brake control mode, lower velocity shaft break starts to take continuous or discontinuous brake, and hub rotation speed is reduced fast.
S106: when detecting that the rotating speed of wheel hub 100 is down to pin rotating speed, controls braking device and stops braking, and obtain position to the positioning pin hole 21 that after this pin proximity switch 22 detects, and using this positioning pin hole 21 as to pin target pin-and-hole.
It should be noted that, now auto lock bearing pin 20 to the initial pin-and-hole of pin and to pin target pin-and-hole between.When wheel hub 100 is to rotate pin rotating speed, and in advance in pin target pin-and-hole is arranged pin proximity switch 22 is triggered time, the braking of beginning second stage, until make the rotating speed of wheel hub 100 be down to zero or be bordering on null value, namely performs S108.
S108: when obtaining the position to pin target pin-and-hole, control braking device continues to carry out braking to wheel hub 100 makes its rotating speed be down to finally pin rotating speed.
Locking bearing pin insertion positioning pin hole 21 is locked wheel hub 100 by the locking cylinder that S110: when detecting that the rotating speed of wheel hub is down to (being less than or equal to) finally to pin rotating speed, delay time t control auto lock pin 20.
Like this, when hub rotation speed n is reduced to pin rotating speed n1, and when shifting to an earlier date the switch triggering near to pin joint of pin-and-hole layout along sense of rotation, break is braked again, makes hub rotation speed n continue to reduce, and is down to final to pin rotating speed n2, now complete pin, and then bearing pin inserts by control locking cylinder.Delay time t can be set to 3s.
It should be noted that, above-mentioned automatically in pin control flow, n1 is final to pin rotating speed, near zero, as 0.001r/min.
As the optional mode of execution of one, in above-described embodiment, this wheel hub also can comprise the following steps the controlling method of pin automatically:
S112: start to level detecting apparatus, detects auto lock pin 20 and whether inserts positioning pin hole 21, if insert, then wheel hub is to pin success; If do not insert, then perform S114;
S114: judge that whether insert number of times is less than predefined value, if insert number of times to be less than predefined value, then performs S116; If insert number of times be more than or equal to predefined value, then perform S118 (or return perform S106, as shown in Figure 6);
S116: control auto lock pin 20 and retract, and be again inserted into positioning pin hole 21.
S118: control braking device and stop braking, and start the position to pin proximity switch 22 detection and location pin-and-hole 21.Start braking device when obtaining the position of positioning pin hole 21, when detecting that the rotating speed of wheel hub is less than finally to pin rotating speed, control auto lock pin 20 inserts positioning pin hole 21 and locks wheel hub 100.
S120: wheel hub is to pin locked success.
Summarize, in the various embodiments described above, wheel hub relates generally to following three processes to the controlling method of pin automatically:
1, aerodynamic brake of putting away the oars controls: after blower fan is put away the oars, under aerodynamic brake effect, hub rotation speed is progressively reduced to safety brake rotating speed;
2, lower velocity shaft brake controls: after three blades are put away the oars smoothly, lower velocity shaft break starts to take continuous or discontinuous brake, and hub rotation speed is reduced to pin rotating speed fast;
3, respond to pin and latch control: when hub rotation speed continues to be reduced to pin rotating speed n1, controller stops braking, when shifting to an earlier date the switch triggering near to pin joint that pin-and-hole is arranged along sense of rotation, controller control brake is braked again, hub rotation speed is made to be reduced to zero or be bordering on zero, and completing pin, delaying time of controller controls locking cylinder and mechanical interlocking bearing pin is inserted positioning pin hole, locking wheel hub.
Based on the various embodiments described above, corresponding with aforementioned wheel hub automatic matching system, wheel hub of the present invention has the following advantages the controlling method tool of pin automatically:
When maintenance outage or other need to shut down; adopt above-mentioned wheel hub automatically to the controlling method of pin; first hub rotation speed is controlled near zero by control for brake; and detect proximity switch detection and location pin-and-hole position by putting in place to pin proximity switch and bearing pin; auto lock bearing pin is inserted positioning pin hole locking wheel hub again; this not only safe but also reliable to pin locked mode; realization shutdown, braking, wheel hub locking three process one keys control automatically; without the need to manual intervention; not only operating efficiency can be improved, and operation is reliable quick.
Obviously, those skilled in the art should be understood that, each module in the controller of above-mentioned wheel hub automatic matching system of the present invention, wheel hub can realize with general computing device step each in the controlling method of pin automatically, they can concentrate on single computing device, or be distributed on network that multiple computing device forms, alternatively, they can realize with the executable program-code of computing device, thus, they can be stored and be performed by computing device in the storage device, or they are made into each integrated circuit module respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.Described storage device is nonvolatile memory, as: ROM/RAM, flash memory, magnetic disc, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a wheel hub automatic matching system, is characterized in that, comprising: controller and the braking device be connected with described controller, to pin proximity switch (22) and auto lock pin (20);
Described position of pin proximity switch (22) being gone up to the positioning pin hole (21) arranged for detecting described wheel hub (100), obtain the initial pin-and-hole of pin and the position to pin target pin-and-hole, and for feeding back with described the initial pin-and-hole of pin and the trigger signal corresponding to the position of pin target pin-and-hole to described controller;
Described controller is used for determining whether the rotating speed of described wheel hub (100) is down to default safety brake rotating speed, to pin rotating speed and final to pin rotating speed, and control the flexible of described braking device and described auto lock pin (20) according to the rotating speed of the described wheel hub (100) detected and the described trigger signal fed back pin proximity switch (22);
Described braking device is used for braking described wheel hub (100) according to the control command of described controller; Described auto lock pin (20) is for the control command according to described controller, the rotating speed of described wheel hub (100) be down to described final to pin rotating speed time, be inserted into described positioning pin hole (21) and lock described wheel hub (100).
2. wheel hub automatic matching system according to claim 1, is characterized in that, also comprise:
Put in place detection proximity switch, is arranged on described auto lock pin (20), is connected with described controller; The described detection proximity switch that puts in place puts in place for determining whether it inserts according to the outreach of described auto lock pin (20);
Or described wheel hub automatic matching system also comprises:
Put in place and detect proximity switch (30), be arranged on the inwall of described wheel hub (100), and be positioned at the side of described positioning pin hole (21) away from described auto lock pin (20); Wherein, described in put in place detect proximity switch (30) be connected with described controller, put in place for determining whether it inserts according to the outreach of described auto lock pin (20).
3. wheel hub automatic matching system according to claim 2, is characterized in that:
On described axle sleeve pin proximity switch (22) being arranged to described auto lock pin (20);
Or,
Describedly be arranged on described wheel hub (100) to pin proximity switch (22), along the sense of rotation of described wheel hub (100), to pin proximity switch (22) described in described positioning pin hole (21) arranged in front.
4. wheel hub automatic matching system according to claim 3, is characterized in that, described to pin proximity switch (22) be arranged at described wheel hub (100) upper time:
The quantity of described positioning pin hole (21) is three, is circumferentially uniformly distributed on described wheel hub (100) with one heart;
The described quantity to pin proximity switch (22) is three, and matches with described positioning pin hole (21) and arrange.
5. wheel hub automatic matching system according to claim 1, is characterized in that, described braking device comprises:
Brake disc (11), is installed on torsion cylinder main shaft on the pivoting support of described wheel hub (100) one end; Torsion cylinder (200) is connected with described wheel hub (100);
Break (12), is arranged at the side of described brake disc (11), is connected with described controller; Described break (12) has braking and discontinuous braking two kinds of mode of operations continuously.
6. wheel hub automatic matching system according to claim 1, is characterized in that, described auto lock pin (20) comprising:
Locking cylinder;
Spring bolt, is connected with the piston rod of described locking cylinder;
Solenoid valve, is connected with described controller and described locking cylinder, flexible with the latch realizing described spring bolt with pull pin for what control described locking cylinder;
Wherein, the bearing pin of described spring bolt is taper, and with described positioning pin hole (21) Spielpassung.
7. the wheel hub automatic matching system according to any one of claim 1 to 6, is characterized in that, described controller comprises:
Putting away the oars testing module, whether putting away the oars for detecting wind-driven generator, and do not put away the oars detecting, control blade and put away the oars;
Brake control module, for controlling the start and stop of aerodynamic brake and braking device to brake described wheel hub (100) after putting away the oars, the rotating speed of described wheel hub (100) is corresponding in turn to be down to described safety brake rotating speed, described to pin rotating speed and described final to pin rotating speed;
To pin control module, for receiving the described position to the described positioning pin hole (21) that pin proximity switch (22) feeds back, obtain the initial pin-and-hole of pin and the trigger signal to pin target pin-and-hole;
Locking control module, for detect the rotating speed of wheel hub be less than or equal to final to pin rotating speed time, delay time t controls described auto lock pin (20) and inserts described positioning pin hole (21) and lock described wheel hub (100);
Put in place control module, for starting to level detecting apparatus, detect described auto lock pin (20) and whether insert described positioning pin hole (21), and redefine when not inserting described to performing insertion locking operation behind the position of pin target pin-and-hole.
8. a wind-driven generator, is characterized in that, is provided with the wheel hub automatic matching system described in any one of claim 1 to 7; Described wheel hub (100) is connected with torsion cylinder (200), and the step-up drive system of this wind-driven generator adopts the hollow spindle of described torsion cylinder (200) to drive booster engine to drive electrical power generators.
9. wheel hub is automatically to a controlling method for pin, it is characterized in that, use the wheel hub automatic matching system described in any one of claim 1 to 7, the method comprises:
After receiving halt instruction, detect wind-driven generator and whether put away the oars, do not put away the oars if detect, control blade and put away the oars;
After determining that blade is put away the oars, start the wheel hub (100) of aerodynamic brake to wind-driven generator and brake, make its reduction of speed to the safety brake rotating speed preset;
When detecting that the rotating speed of described wheel hub (100) is down to described safety brake rotating speed, start position pin proximity switch (22) being detected to the upper positioning pin hole (21) arranged of described wheel hub (100), and using first positioning pin hole (21) detecting as to the initial pin-and-hole of pin;
Start described braking device, described wheel hub (100) is braked to that its rotating speed is down to is default to pin rotating speed;
Detect the rotating speed of described wheel hub (100) be down to described to pin rotating speed time, control braking device and stop braking, and obtain the position of the upper positioning pin hole (21) arranged of the described wheel hub (100) that after this detects, and using the positioning pin hole (21) that after this detects as to pin target pin-and-hole;
When obtaining the described position to pin target pin-and-hole, control described braking device and continue that braking is carried out to described wheel hub (100) that its rotating speed is down to is described final to pin rotating speed;
Detect the rotating speed of described wheel hub be down to described final to pin rotating speed time, control auto lock pin (20) and insert described positioning pin hole (21) and lock described wheel hub (100).
10. wheel hub according to claim 9 is automatically to the controlling method of pin, it is characterized in that, also comprises:
Start to level detecting apparatus, detect described auto lock pin (20) and whether insert described positioning pin hole (21), if do not insert, then judge whether insert number of times is less than predefined value, if be less than described predefined value, control the retraction of described auto lock pin (20), and be again inserted into described positioning pin hole (21);
If insert number of times to be more than or equal to described predefined value, then control described braking device and stop braking, and start described position pin proximity switch 22 being detected to described positioning pin hole (21); Described braking device is started when obtaining the position of described positioning pin hole (21), detect the rotating speed of described wheel hub be less than described final to pin rotating speed time, control auto lock pin (20) and insert described positioning pin hole (21) and lock described wheel hub (100).
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| CN201510188953.XA CN104832369B (en) | 2015-04-21 | 2015-04-21 | Wheel hub automatic matching system and control method and wind-driven generator |
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| CN201510188953.XA CN104832369B (en) | 2015-04-21 | 2015-04-21 | Wheel hub automatic matching system and control method and wind-driven generator |
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| CN110939671A (en) * | 2019-12-05 | 2020-03-31 | 贵州凯星液力传动机械有限公司 | Output end locking device for automatic hydraulic transmission test |
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Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |
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