CN208106669U - The locking device of impeller in wind power generating set - Google Patents
The locking device of impeller in wind power generating set Download PDFInfo
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- CN208106669U CN208106669U CN201820624953.9U CN201820624953U CN208106669U CN 208106669 U CN208106669 U CN 208106669U CN 201820624953 U CN201820624953 U CN 201820624953U CN 208106669 U CN208106669 U CN 208106669U
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- locking pin
- impeller
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- guide rod
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- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 239000003921 oil Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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
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Abstract
The utility model provides a kind of locking device of impeller in wind power generating set; it can reliably be limited when locking working position and unlock working position; when guaranteeing locking while job security, it is thus also avoided that locking pin is stretched out in the unexpected of solution lock-bit, prevents blower mistakenly stop machine and alarm.To achieve the above object, the locking device of the utility model includes the locking pin for locking or unlocking the impeller, the locking device further includes fixing piece and safety piece, when in locking working position, the safety piece supports the locking pin along locking direction, and the locking pin is limited in the locking working position；When in unlock working position, the fixing piece limits the locking pin in the unlock working position for limiting movement of the locking pin towards locking direction.
Description
Technical field
The utility model relates to technical field of wind power generation, the locking more particularly to impeller in wind power generating set is filled
It sets.
Background technique
Wind power generating set is a kind of clean energy resource equipment for converting wind energy into electric energy.When impeller assembling, Huo Zhe
When including the various devices progress maintenance of impeller, maintenance personnel will enter impeller, must just lock impeller, make
It cannot be rotated, to ensure the life security of staff.
Fig. 1-Fig. 2 is please referred to, Fig. 1 is that a kind of structure of typical locking pin under unlocked state is shown in the prior art
It is intended to；Fig. 2 is the structural schematic diagram that locking pin shown in Fig. 1 is in the lock state.
As depicted in figs. 1 and 2, in the wind power generating set of the prior art, impeller is connected with shaft 1 ', and blower is connected with fixed
Axis 2 ', the locking device of the impeller for locking wind power generating set include locking pin 3 ', mounting flange 4 ', displacement switch 5 ',
Solenoid valve 6 ', lock 7 ' and guide rod 8 '.Dead axle 2 ' is equipped with the pin hole of locking pin 3 ', and locking pin 3 ' stretches out or retract pin hole
It is interior, to realize the locking and unlock of dead axle 2 ' Yu shaft 1 '.Mounting flange 4 ' is installed on one end that dead axle 2 ' deviates from shaft 1 ', and
Installation position equipped with displacement switch 5 ', so that the contact of displacement switch 5 ' can follow locking pin 3 ' to move, for detecting lock
Determine signal.Meanwhile mounting flange 4 ' is equipped with sleeve, is set with the guide rod 8 ' being fixedly connected with locking pin 3 ' in the sleeve, protects
Dangerous bolt 7 ' is just installed on the end of the sleeve, plays the safety effect for holding out against locking pin 3 ' in the locked state.Solenoid valve 6 ' is used
In the hydraulic circuit of control locking pin 3 ', to control the stretching and retraction of locking pin 3 '.
As shown in Figure 1, locking pin 3 ' is the 3 ' mounting hole of locking pin for being withdrawn completely into dead axle 2 ' when blower operates normally
In, at this point, 5 ' no signal of displacement switch.As shown in Fig. 2, solenoid valve 6 ' controls locking pin 3 ' and stretches when needing to lock impeller
Pin hole out, the contact of displacement switch 5 ' follow locking pin 3 ' to move, and the sender after locking pin 3 ' enters latched position, at this point,
Blower fail to start；Meanwhile lock 7 ' is screwed into sleeve, withstands the guide rod 8 ' on locking pin 3 ', prevents maloperation hydraulic
System exits locking pin 3 '.
But above-mentioned locking device only realizes the positioning of locking pin 3 ', under unlocked state, locking in the locked state
Pin 3 ' is possible to accidentally stretch out because of hydraulic circuit, causes blower that cannot normally start.
Therefore, the locking device of impeller in wind power generating set how is designed, to take into account locking pin in locking and unlocking shape
Reliability of positioning under state, preferably avoids maloperation, is those skilled in the art's technical problem urgently to be solved.
Utility model content
The purpose of the utility model is to provide the locking devices of impeller in wind power generating set, in locking working position and unlock
It can reliably be limited when working position, when guaranteeing locking while job security, it is thus also avoided that locking pin is solving
The unexpected of lock-bit stretches out, and prevents blower mistakenly stop machine and alarm.
To achieve the above object, the utility model provides a kind of locking device of impeller in wind power generating set, described
Locking device includes the locking pin for locking or unlocking the impeller, and the locking device further includes fixing piece and safety piece,
When in locking working position, the safety piece supports the locking pin along locking direction, and the locking pin is limited in the lock
Determine working position；When in unlock working position, the fixing piece is for limiting movement of the locking pin towards locking direction, by institute
Locking pin limit is stated in the unlock working position.
The locking device of the utility model, including fixing piece and safety piece, when in locking working position, safety piece is along locking
Locking pin is supported in direction, so that locking pin is limited in locking working position, keeps the reliable locking to impeller, and then improve lock
Determine reliability, it is ensured that safety when staff is filled in impeller sets and each device comprising impeller carries out maintenance maintenance；More
Importantly, fixing piece can limit movement of the locking pin towards locking direction, thus by locking pin when in unlock working position
Limit avoids locking pin from accidentally driving because of reasons such as the expansions of its hydraulic circuit in unlock working position, and then can prevent because of lock
Rationed marketing surprisingly stretch out caused by alarm and fan parking, ensure that the operational reliability of blower.
Optionally, dead axle is fixedly installed in the cabin of the wind power generating set, the impeller is fixedly connected with shaft,
The dead axle is equipped with receiving hole, and for accommodating the locking pin of unlock working position, the shaft is equipped on locking direction
Lock hole in front of the receiving hole, the keyed end of the locking pin for engaging locking working position.
Optionally, the locking pin is removably fixedly connected by the fixing piece with the dead axle, so that institute
Locking pin is stated to be limited in the receiving hole.
It optionally, further include the mounting flange being fixedly connected with the dead axle, the mounting flange is plugged in the receiving
Hole deviates from one end of the shaft, and when so as in unlock working position, the fixing piece passes through the mounting flange with one end
And be connected with the locking pin, the other end is removably fastened with the mounting flange.
Optionally, the fixing piece is fixing bolt, and the fixing bolt is with its head end passes through the mounting flange and revolves
Enter the screw hole of the locking pin, and is fastened by its screw cap end and the mounting flange.
Optionally, further include the guide rod being fixedly connected with one end with the locking pin, the mounting flange be equipped with
The guide sleeve of the guide rod cooperation, so that the movement to the locking pin in locking and unlocking direction is oriented to；In lock
When determining working position, the safety piece supports the other end of the guide rod along locking direction, to limit the locking pin.
Optionally, the other end of the guide rod is additionally provided with thread segment, and when in unlock working position, the thread segment is extremely
The protruding guide sleeve of small part, and fastened by fixture nut and the guide sleeve, the thread segment and the fixation
Nut forms the fixing piece.
Optionally, the safety piece includes jam nut and the first spiral section in the jam nut two sides and
Two spiral sections, when in locking working position, first spiral section is threadedly engaged with the guide sleeve, and passes through the insurance spiral shell
Cap and the guide sleeve fasten, to support the guide rod along locking direction；When in unlock working position, second spiral section
Cooperate with the screw hole of the other end of the guide rod, to be connected by the guide rod and the locking pin, and passes through the guarantor
Dangerous nut and the guide sleeve fasten, and the jam nut and second spiral section form the fixing piece.
Optionally, the locking pin is the cylinder body with piston rod, and the piston rod is with its rod end and the mounting flange
It is connected, the locking device further includes the control valve for controlling the hydraulic circuit of the locking pin.
It optionally, further include the displacement switch for being installed on the mounting flange, the displacement switch is equipped with the locking
Sell the contact moved synchronously.
Detailed description of the invention
Fig. 1 is structural schematic diagram of a kind of typical locking pin under unlocked state in the prior art；
Fig. 2 is the structural schematic diagram that locking pin shown in Fig. 1 is in the lock state；
Fig. 3 is the schematic illustration that the hydraulic circuit of locking pin in the prior art accidentally drives by expansion；
Fig. 4 is that locking pin is in the schematic diagram for stretching out state in addition in the prior art；
Fig. 5 provides the structural schematic diagram of locking device in embodiment 1 by the utility model；
Fig. 6 is the partial enlargement diagram of part A in Fig. 5；
Fig. 7 provides the structural schematic diagram of locking device in example 2 by the utility model；
Fig. 8 is the partial enlargement diagram of part B in Fig. 7；
Fig. 9 provides the structural schematic diagram of locking device in embodiment 3 by the utility model；
Figure 10 is the partial enlargement diagram of C portion in Fig. 9.
In Fig. 1-Fig. 4：
Shaft 1 ', dead axle 2 ', locking pin 3 ', mounting flange 4 ', displacement switch 5 ', solenoid valve 6 ', lock 7 ', guiding
Bar 8 '；
In Fig. 5-Figure 10：
Locking pin 1, keyed end 11, piston rod 12, fixing piece 2, head end 21, screw cap end 22, fixture nut 23, safety piece 3,
Jam nut 31, the first spiral section 32, the second spiral section 33, dead axle 4, receiving hole 41, shaft 5, lock hole 51, mounting flange
6, guide sleeve 61, guide rod 7, thread segment 71, control valve 8.
Specific embodiment
Below in conjunction with attached drawing, specific embodiment of the present utility model is introduced, so as to those skilled in the art's standard
Really understand the technical solution of the utility model.
Axial, circumferential direction and radial direction as described herein are using impeller or the shaft connecting with impeller as reference, with the shaft
Central axes extending direction be it is axial, in perpendicular to axial horizontal plane, be with the rotation direction of shaft it is circumferential, shaft
Diameter extending direction is radial.
As described herein first, second equal words are only used for the same or similar more than two components of specification configuration, Huo Zhexiang
Same or similar more than two structures, do not indicate the particular determination to sequence.
For orientation of the orientation such as left-right and front-back as described herein in scheme, merely to the demand of explanation, do not indicate pair
The restriction of physical location.
This programme is related to the locking device of impeller in wind power generating set, including the locking pin for locking or unlocking impeller
1, which controls hydraulic circuit by control valve 8, and then controls the movement of its locking and unlocking.Due to using hydraulic circuit
Control, in winter again in summer in use, the temperature rise of environment temperature is up to 40 DEG C, positioned at locking pin 1 and its control valve 8 after use
Between connecting pipeline in oil liquid and rod chamber and rodless cavity in locking pin 1 oil liquid, can expanded by heating；At this point,
If Micro blazed-grating occurs for the sealing of piston, locking pin 1 is possible to be equivalent to a differential cylinder, the i.e. rod chamber and nothing of oil cylinder
Rod cavity is connected to and is connected to pressure piping, as shown in Figure 3；When locking pin 1 is equivalent to differential cylinder, locking pin 1 will be sent out
Raw slowly to stretch out phenomenon, when overhang reaches certain value, displacement switch will be triggered, and stop so as to cause alarm and blower
Machine, as shown in Figure 4.
But the stretching of above-mentioned locking pin 1 is surprisingly stretched out as caused by the expansion of hydraulic oil, the alarm caused at this time
It is not desired generation with fan parking, affects the normal operation of blower instead.
In view of the above technical problems, as shown in fig. 5-10, present solution provides the lockings of the impeller of wind power generating set
Device the phenomenon that for locking pin 1 due to temperature rise auto-extending, increases the fixing piece 2 of locking pin 1 in the unlocked state, with
Avoid hang-up caused by the auto-extending of locking pin 1 and alarm.
Specifically, the utility model provides a kind of locking device of impeller in wind power generating set, the locking device
Including the locking pin 1 for locking or unlocking impeller, locking device further includes fixing piece 2 and safety piece 3, in locking working position
When, safety piece 3 supports locking pin 1 along locking direction, by the limit of locking pin 1 in locking working position；When in unlock working position, Gu
Part 2 is determined for limiting movement of the locking pin 1 towards locking direction, by the limit of locking pin 1 in unlock working position.
When in locking working position, safety piece 3 supports locking pin 1 along locking direction, so that locking pin 1 is limited in lock
Determine working position, keep the reliable locking to impeller, and then improve locking reliability, it is ensured that staff is filled with and wraps in impeller sets
Each device containing impeller carries out safety when maintenance maintenance；More importantly fixing piece 2 can be with when in unlock working position
Movement of the locking pin 1 towards locking direction is limited, to avoid locking pin 1 because of its liquid in unlock working position the limit of locking pin 1
The reasons such as the expansion on pressure oil road and accidentally drive, and then occur false alarm even fan parking, ensure that the operational reliability of blower.
Locking direction and unlocking direction as described herein be in contrast, when locking pin 1 towards impeller direction move,
When limiting the rotation of impeller to fix with impeller, the locking of impeller is realized, in this process the movement side of locking pin 1
To being defined as locking direction；When locking pin 1 is directed away from the direction movement of impeller, to release with the connection of impeller when, realize
The unlock of impeller, the direction of motion of locking pin 1 is defined as unlocking direction in this process.
It is understood that the locking direction and unlocking direction can be direction to be easy to implement locking and unlocking control
Opposite rectilinear direction, at this point, corresponding lock motion and unlocking movement are all linear motions, motion mode is relatively simple, control
It makes and is also relatively easy to realize, corresponding operation is more convenient.If locking direction and unlocking direction and impeller are solid with impeller
Surely when the axial direction of the shaft 5 connected is parallel, locking direction is the direction of motion axially towards impeller, and unlocking direction is edge
Axially away from the direction of motion of impeller.Certainly, locking direction and unlocking direction are also not necessarily parallel to axial direction, can also be with relative axle
To being tilted a certain angle, for locking direction, as long as all should belong to we on the direction that can be contacted with impeller
The locking direction of case；For unlocking direction, as long as all should belong to this on the direction that can be disengaged with impeller
The unlocking direction of scheme.
Embodiment 1
In one embodiment, dead axle 4 is fixedly installed in the cabin of wind power generating set, impeller, which is fixedly connected with, to be turned
Axis 5, dead axle 4 are equipped with receiving hole 41, and shaft 5 is equipped with lock hole 51, and receiving hole 41 and lock hole 51 are in locking direction or unlock
It is distributed on direction；It when locking pin 1 is in unlock working position, is contained in the receiving hole 41 of dead axle 4, when in locking work
When position, locking pin 1 is moved with its keyed end 11 along locking direction, and then stretches out receiving hole 41, is moved in lock hole 51, with lock
Determine the engagement of hole 51, the locking with impeller is realized by shaft 5.
In detail, on locking direction, lock hole 51 is in the front of receiving hole 41, when locking pin 1 is transported along locking direction
It when dynamic, is stretched out with its keyed end 11 by receiving hole 41, and protrude into lock hole 51, realizes the circumferentially fixed connection with shaft 5, into
And the locking to impeller is realized by shaft 5；On unlocking direction, receiving hole 41 is in the front of lock hole 51, when locking pin 1
When moving along unlocking direction, its keyed end 11 is driven to be bounced back in receiving hole 41 by lock hole 51, is detached from the engagement with shaft 5,
Realize the unlock to impeller.
That is, locking pin 1 realizes the locking to impeller by means of the shaft 5 being fixedly connected with impeller.Similarly, due to
Dead axle 4 is fixedly installed in cabin, and when unlocking working position, locking pin 1 is contained in the receiving hole 41 of dead axle 4, then is fixed
Part 2 can be used as dismountable connector, and locking pin 1 is detachably secured with dead axle 4 and is connect, so that locking pin
1 is limited in receiving hole 41, and the limit of locking pin 1 is realized by dead axle 4.
At this point, dead axle 4 and shaft 5 can be substantially coaxially disposed, and receiving hole 41 and lock hole 51 are being parallel to axis
Direction be spaced apart；Alternatively, lock hole 51 and receiving hole 41 can be spaced apart on the same line, when locking pin 1 exists
When the linear motion, locking and unlock may be implemented.
Meanwhile locking device can also include the mounting flange 6 being fixedly connected with dead axle 4, mounting flange 6 is plugged in receiving
Hole 41 deviates from one end of shaft 5, and the other end of receiving hole 41 can be connected to lock hole 51, when so as in locking working position,
Locking pin 1 is with its keyed end 11 stretches out receiving hole 41 and accesses lock hole 51；When in unlock working position, locking pin 1 is retracted to
In receiving hole 41, at this point, locking pin 1 is adjoining away from one end of lock hole 51 and mounting flange 6, and will be on unlocking direction
It substantially offsets, fixing piece 2 can pass through mounting flange 6 along locking direction with one end, and then engage and fix with locking pin 1, real
It is now connected with locking pin 1, it is removably fastened with mounting flange 6 with its other end, to pass through mounting flange 6
Realization is fixedly connected with dead axle 4, and then limits locking pin 1 in receiving hole 41 by dead axle 4.
To realize that the working condition to locking pin 1 carries out effective monitoring, locking device further includes being installed on mounting flange 6
Displacement switch, displacement switch are equipped with the contact moved synchronously with locking pin 1, i.e. contact follows locking pin 1 to move, and locks entering
Positioning postpones sending alarm signal, upon receipt of the signal, controls fan parking, blower at this time cannot start, Jin Erji
When according to the working condition of locking pin 1 match blower movement, it is ensured that the safety of operator.Specifically it is referred to the prior art
Displacement switch is set.
In the present embodiment, locking device can also include guide rod 7, and mounting flange 6 is equipped with and leads with what guide rod 7 cooperated
To set 61, which is fixedly connected with one end with locking pin 1, and the other end protrudes into the guide sleeve 61 of mounting flange 6, and
Under the guiding role of guide sleeve 61, the movement to locking pin 1 in locking and unlocking direction is oriented to.When in locking work
When position, safety piece 3 supports the other end of guide rod 7 along locking direction, to realize locking pin 1 in locking work by guide rod 7
The limit of position guarantees locking reliability.
At the same time, screw hole can also be arranged in the other end of guide rod 7, and safety piece 3 specifically can be set to lock, should
Lock includes jam nut 31 and the first spiral section 32 and the second spiral section 33 in 31 two sides of jam nut.In lock
When determining working position, the first spiral section 32 is threadedly engaged with guide sleeve 61, and by adjust the first spiral section 32 screw-in amount so that
Jam nut 31 and the guide sleeve 61 fasten, and then are applied guide rod 7 along locking side by jam nut 31 and guide sleeve 61
To support power, realize locking pin 1 in the limit of locking working position.When in unlock working position, the second spiral section 33 and guiding
The screw hole of the other end of bar 7 cooperates, at this point, safety piece 3, guide rod 7 and locking pin 1 are sequentially connected, safety piece 3 passes through guide rod
7 are connected with locking pin 1, can also realize insurance spiral shell by adjusting screw-in amount of second spiral section 33 in the screw hole of guide rod 7
The fastening of cap 31 and guide sleeve 61.In this way, jam nut 31 and the second spiral section 33 form fixing piece 2 in unlock working position.
At this point, need to only be carried out on the basis of existing guide rod 7 and safety piece 3 without additional set parts for fixing
It improves, that is, may be combined to form fixing piece 2, structure is simple, easy to use.
It is understood that since guide rod 7 is in guide sleeve 61, and safety piece 3 is also required to and 61 screw thread of guide sleeve
Cooperation, also, safety piece 3 and guide rod 7 abut on locking direction, but extended distance of the mounting flange 6 on unlocking direction
It is limited, therefore one end of the separate locking pin 1 of guide sleeve 61 can stretch out mounting flange 6, as shown in Figure 5 and Figure 6, therefore, insure spiral shell
The locking members such as cap 31 are typically directly fastened with guide sleeve 61, by means of the progress of guide sleeve 61 and the ring flange of mounting flange 6
Fastening, i.e. fixing piece 2 can realize the fastening with mounting flange 6 by guide sleeve 61.
As shown in Figure 5 and Figure 6, the left end in the other end of the guide rod 7 of locking pin 1, corresponding diagram increases screw hole knot
Structure, one end (right end in corresponding diagram) and the locking pin 1 of guide rod 7 can be fixed together by helicitic texture.In lock
Right end increase bolt structure, the bolt structure as the second spiral section 33, locking pin 1 it is in the unlocked state carry out it is standby
When, the second spiral section 33 of lock right end is screwed in the screw hole of 7 left end of guide rod, by lock, guide rod 7 and locking pin
1 is fixed, and fastens by the jam nut of lock 31 and guide sleeve 61, prevents uncertain external force from causing the accident of locking pin 1
It stretches out, to avoid triggering alarm caused by displacement switch and shutdown because locking pin 1 stretches out.
When unlocking working position, lock screws in the screw hole of guide rod 7 with its second spiral section 33, real by guide rod 7
It now with the connection of locking pin 1, and is fastened by jam nut 31 and guide sleeve 61, and then lock locking pin 1, prevents locking pin 1
It is unexpected to stretch out, realize locking pin 1 in the limit of unlock working position.When needing to lock impeller, manual operation takes lock
Under, it is extend out in lock hole 51 so that locking pin 1 is locked end 11 along locking direction under the driving of hydraulic circuit, reaches lock
Determine working position.After completing to the locking of impeller, lock there is one end of the first spiral section 32 to screw in guiding by manual operation
In set 61, to support guide rod 7 along locking direction, and then locking pin 1 is withstood, realizes locking pin 1 in the limit of locking working position.
Wherein, it is threadedly engaged with its first spiral section 32 with guide sleeve 61 due to safety piece 3, and guide rod 7 needs edge to lead
It is relatively moved to set 61, so that the guiding role lower edge in guide sleeve 61 locks or unlocks direction movement, therefore, guide rod 7
Outer diameter is less than internal diameter of the guide sleeve 61 at smallest radial size, to guarantee that guide rod 7 can freely be transported along guide sleeve 61
It is dynamic.Second spiral section 33 of safety piece 3 will screw in the screw hole of 7 end of guide rod, then the second spiral section 33 certainly less than
The outer diameter of guide rod 7, in this way, the second spiral section 33 is also less than the outer diameter setting of the first spiral section 32, when unlocking working position,
Second spiral section 33 not will receive the influence of guide sleeve 61, can smoothly access in the screw hole of guide rod 7.
Due to the second spiral section 33 outer diameter less than the first spiral section 32 outer diameter, for improve the second spiral section 33 it is strong
Degree, only can set the thin stud matched with the screw hole of guide rod 7 for the end of the second spiral section 33, and in the second spiral shell
Rotation section 33 is set as with the thick stud of the same thickness of the first spiral section 32 close to one end of jam nut 31 (relative to above-mentioned thin
For stud), in unlock working position, safety piece 3 carries out screw thread with guide sleeve 61 with the thick stud of its second spiral section 33 and matches
It closes, to cooperate in the screw hole of thin stud screw-in guide rod 7 with guide rod 7, at this point, the thick spiral shell of the second spiral section 33 can also be passed through
The engagement of post part and guide sleeve 61 provides auxiliary positioning power, by guide rod 7 realize to locking pin 1 in unlock working position can
By positioning.
In conjunction with Fig. 5 and Fig. 6 it is found that when needing to lock impeller, by the second spiral section 33 of safety piece 3 from guide rod 7
It backs out, control hydraulic oil enters the rodless cavity of locking pin 1, and the keyed end 11 of locking pin 1 is pushed to stretch out；It is locked when locking pin 1 reaches
After determining working position, stop hydraulic oil and go successively to rodless cavity, at this point, locking pin 1 enters lock state, by the first of safety piece 3
Spiral section 32 screws in guide sleeve 61, and the guide rod 7 connecting with locking pin 1 is supported along locking direction, prevents maloperation hydraulic pressure system
It unites and exits locking pin 1, jeopardize the safety of operator in impeller.
When needing to unlock impeller, the first spiral section 32 of safety piece 3 is backed out, control hydraulic oil enters locking pin 1
Rod chamber drives locking pin 1 to be retracted into the receiving hole 41 of dead axle 4；After pin 1 to be locked is fully retracted, by the of safety piece 3
Two spiral sections 33 screw in the screw hole of 7 right end of guide rod, are fixedly connected by guide rod 7 with locking pin 1, prevent uncertain outer
Power causes locking pin 1 to stretch out, avoid causing because of unexpected stretch out of locking pin 1 displacement switch be triggered caused by alarm and wind
Machine is shut down.
As shown in figure 5, locking pin 1 is specifically as follows the cylinder body with piston rod 12, piston rod 12 can be along unlock side
It is connect to extension, and with the end (i.e. the rod end opposite with piston) that its piston rod 12 is in unlocking direction front end with mounting flange 6
It closes, locking device further includes the control valve 8 for controlling the hydraulic circuit of locking pin 1, which is specifically as follows electromagnetism
Valve, the working position of switching solenoid valve whether with by obtaining electric, and then switch the connected state of oil circuit, control the locking of locking pin 1
End 11 is stretched out or is retracted, and the locking and unlocking to impeller are played the role of.
Due to piston rod 12 and 6 fixed engagement of mounting flange, so that piston rod 12 is by mounting flange 6 relative to dead axle 4
It is fixed, when the movement of the oil liquid of rod chamber and rodless cavity, the locking pin 1 as cylinder body will be driven to stretch with respect to dead axle 4
Movement is realized and 51 locking and unlocking of lock hole.
It specifically can be using the solenoid valve of 3-position 4-way as control valve 8, including high pressure oil port P, oil return opening R, the first work
Make hydraulic fluid port A and the second actuator port B, wherein the first actuator port A is connected to rodless cavity, the second actuator port B and rod chamber
Connection.When needing to lock impeller, the electromagnet of solenoid valve lower end obtains electric, and solenoid valve switches to the first working position, solenoid valve
High pressure oil port P is connected to the first actuator port A, and oil return opening R is connected to the second actuator port B, and hydraulic oil is through high pressure oil port P,
One actuator port A enters the rodless cavity of locking pin 1, pushes the keyed end 11 of locking pin 1 to protrude into lock hole 51 by receiving hole 41, has
Hydraulic oil in rod cavity flow back into fuel tank through the second actuator port B and oil return opening R.When needing to unlock impeller, the electricity of solenoid valve
Magnet power loss, solenoid valve are switched to the second working position, control hydraulic oil through high pressure oil port P, the second actuator port B and enter locking
The rod chamber of pin 1 drives locking pin 1 to be retracted into receiving hole 41, and the hydraulic oil in rodless cavity is through the first actuator port A and oil return opening
R flow back into fuel tank.
Embodiment 2
As shown in Figure 7 and Figure 8, in second of specific embodiment, fixing piece 2 can be fixing bolt, fixing bolt
The screw hole of locking pin 1 is screwed in across mounting flange 6 with its head end 21, and makes its screw cap end 22 and guiding by adjusting screw-in amount
61 fastening of set, realizes the fixation of the locking pin 1 to unlock working position.
In the present embodiment, fixing bolt can be with the improved guide rod 7 of alternative structure and safety piece 3, just without to original
Some guide rods 7 and safety piece 3 improve.When locking pin 1 moves to unlock working position, safety piece 3 and guide rod 7 are torn open
It removes, is then threaded into fixing bolt, the head end 21 of fixing bolt is passed through into mounting flange 6 and screws in the screw hole of locking pin 1, it can be with
So that the main part that fixing bolt is between head end 21 and screw cap end 22 is threadedly engaged with guide sleeve 61, and pass through adjusting
Screw-in amount is so that the screw cap end 22 and guide sleeve 61 of fixing bolt fasten, and then realize the limit to locking pin 1.
When needing to lock impeller, fixing bolt is removed, guide rod 7 and locking pin 1 are tightened, and is locked reaching
After determining working position, safety piece 3 is held out against, realizes the limit in locking pin 1 in locking working position.
It is understood that the head end 21 of the fixing bolt can be according to guiding when fixing piece 2 is set as fixing bolt
One end that bar 7 is connected with locking pin 1 is configured, and is connect to substitute guide rod 7 when unlocking working position with locking pin 1；
The screw cap end 22 of fixing bolt and the main part cooperated with guide sleeve 61 can be configured according to safety piece 3, to replace
The safety piece 3 of generation locking working position is fastened with guide sleeve 61.In other words, fixing piece 2 is equivalent to by original 7 He of guide rod
The component that safety piece 3 is composed, wherein the connection with locking pin 1 is realized by the function of guide rod 7, it being capable of safety piece 3
Function realize and the fastening of guide sleeve 61.In this way, safety piece 3, guide rod 7 and fixing piece 2 form apparent division of labor cooperation,
It when unlocking working position, is connect and is limited with locking pin 1 using fixing piece 2, in the process that locking pin 1 is moved along locking direction
In, guide rod 7 realizes guiding role, and after reaching locking working position, safety piece 3 accesses and supports guide rod 7, realizes locking pin
1 in the limit for locking working position.
The difference of the present embodiment and embodiment 1 can be only that the structure of fixing piece 2, these differences include：Due to being not necessarily to
Guide rod 7 and safety piece 3 are improved, then the guide rod 7 of the present embodiment can be not provided in the other end away from locking pin 1
Screw hole, safety piece 3 can retain original jam nut 31 and the first spiral section 32, to pass through the first spiral section 32 and guide sleeve
61 support guide rod 7 with merging, it is not necessary that the second spiral section 33 is arranged in the other side of jam nut 31.In addition to this, this implementation
The other parts of example are referred to embodiment 1 and are configured, and details are not described herein again.
Embodiment 3
As shown in Figure 9 and Figure 10, in the third specific embodiment, guide rod 7 is in its other end far from locking pin 1
It is also provided with thread segment 71, when in unlock working position, at least partly protruding guide sleeve 61 of thread segment 71, and pass through
Fixture nut 23 and guide sleeve 61 fasten, at this point, thread segment 71 and fixture nut 23 in 7 other end of guide rod are formed admittedly
Determine part 2.
In the present embodiment, bolt structure can be increased in the left end (orientation in corresponding diagram) of guide rod 7, as thread segment
71, since guide rod 7 is fixedly connected with locking pin 1, as long as at this point, the thread segment 71 of guide rod 7 can stretch out 61 shape of guide sleeve
At connecting pin, then it is tightened again by fixture nut 23 with the thread segment 71, so that it may realize guide rod 7 and guide sleeve 61
In being fixedly connected for locking direction, guide rod 7 is fixedly connected with locking pin 1 in addition, can realize the limit to locking pin 1,
Prevent locking pin 1 from moving along locking direction, so that locking pin 1 is maintained at unlock working position.
The difference of the present embodiment and embodiment 1 can be only that fixing piece 2, these differences include：It is different from embodiment 1
Improved guide rod 7, without improved safety piece 3, (i.e. safety piece 3 can only include jam nut 31 and the first spiral section
32), the newly-increased fixture nut 23 cooperated with guide rod 7.In addition to this other parts are referred to embodiment 1 and are set
It sets, details are not described herein again.
The locking device of impeller is described in detail in wind power generating set provided to the utility model above.Herein
In apply specific case the principles of the present invention and embodiment be expounded, the explanation of above embodiments is only used
The core concept of the utility model is understood in help.It should be pointed out that for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can be made to this utility model, these improve and repair
Decorations are also fallen into the protection scope of the utility model claims.
Claims (10)
1. the locking device of impeller in a kind of wind power generating set, the locking device includes for locking or unlocking the impeller
Locking pin (1), which is characterized in that the locking device further includes fixing piece (2) and safety piece (3), in locking working position
When, the safety piece (3) supports the locking pin (1) along locking direction, and the locking pin (1) is limited in the locking work
Position；When in unlock working position, the fixing piece (2) is for limiting movement of the locking pin (1) towards locking direction, by institute
Locking pin (1) limit is stated in the unlock working position.
2. the locking device of impeller in wind power generating set as described in claim 1, which is characterized in that the wind-driven generator
It is fixedly installed with dead axle (4) in the cabin of group, the impeller is fixedly connected with shaft (5), and the dead axle (4) is equipped with receiving hole
(41), for accommodating the locking pin (1) of unlock working position, the shaft (5), which is equipped on locking direction, is in the appearance
The lock hole (51) received in front of hole (41), the keyed end (11) of the locking pin (1) for engaging locking working position.
3. the locking device of impeller in wind power generating set as claimed in claim 2, which is characterized in that the fixing piece (2)
Removably the locking pin (1) is fixedly connected with the dead axle (4), so that the locking pin (1) is limited in
In the receiving hole (41).
4. the locking device of impeller in wind power generating set as claimed in claim 3, which is characterized in that further include with it is described fixed
The mounting flange (6) that axis (4) is fixedly connected, the mounting flange (6) are plugged in the receiving hole (41) away from the shaft (5)
One end, so as in unlock working position when, the fixing piece (2) with one end pass through the mounting flange (6) and with it is described
Locking pin (1) is connected, and the other end is removably fastened with the mounting flange (6).
5. the locking device of impeller in wind power generating set as claimed in claim 4, which is characterized in that the fixing piece (2)
It is fixing bolt, the fixing bolt screws in the spiral shell of the locking pin (1) with its head end (21) across the mounting flange (6)
Hole, and fastened by its screw cap end (22) and the mounting flange (6).
6. the locking device of impeller in wind power generating set as claimed in claim 4, which is characterized in that further include with one end
The guide rod (7) being fixedly connected with the locking pin (1), the mounting flange (6) are equipped with and lead with what the guide rod (7) cooperated
To set (61), so that the movement to the locking pin (1) in locking and unlocking direction is oriented to；When in locking working position,
The safety piece (3) supports the other end of the guide rod (7) along locking direction, to limit the locking pin (1).
7. the locking device of impeller in wind power generating set as claimed in claim 6, which is characterized in that the guide rod (7)
The other end be additionally provided with thread segment (71), in unlock working position when, at least partly protruding institute of the thread segment (71)
It states guide sleeve (61), and is fastened by fixture nut (23) and the guide sleeve (61), the thread segment (71) and the fixation
Nut (23) forms the fixing piece (2).
8. the locking device of impeller in wind power generating set as claimed in claim 6, which is characterized in that the safety piece (3)
Including jam nut (31) and be in the jam nut (31) two sides the first spiral section (32) and the second spiral section (33),
When in locking working position, first spiral section (32) is threadedly engaged with the guide sleeve (61), and passes through the insurance spiral shell
Cap (31) and the guide sleeve (61) fasten, to support the guide rod (7) along locking direction；When in unlock working position, institute
The screw hole for stating the other end of the second spiral section (33) and the guide rod (7) cooperates, to pass through the guide rod (7) and the lock
Rationed marketing (1) is connected, and is fastened by the jam nut (31) and the guide sleeve (61), the jam nut (31) and described
Second spiral section (33) forms the fixing piece (2).
9. such as the locking device of impeller in the described in any item wind power generating sets of claim 4-8, which is characterized in that the lock
Rationed marketing (1) is the cylinder body with piston rod (12), and the piston rod (12) is connected with its rod end and the mounting flange (6), institute
Stating locking device further includes the control valve (8) for controlling the hydraulic circuit of the locking pin (1).
10. such as the locking device of impeller in the described in any item wind power generating sets of claim 4-8, which is characterized in that also wrap
The displacement switch for being installed on the mounting flange (6) is included, the displacement switch is equipped with the touching moved synchronously with the locking pin (1)
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624953.9U CN208106669U (en) | 2018-04-27 | 2018-04-27 | The locking device of impeller in wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624953.9U CN208106669U (en) | 2018-04-27 | 2018-04-27 | The locking device of impeller in wind power generating set |
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| Publication Number | Publication Date |
|---|---|
| CN208106669U true CN208106669U (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820624953.9U Active CN208106669U (en) | 2018-04-27 | 2018-04-27 | The locking device of impeller in wind power generating set |
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| Country | Link |
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| CN (1) | CN208106669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998560A (en) * | 2020-08-31 | 2020-11-27 | 林小燕 | Windproof reinforcing device for solar power generation device |
-
2018
- 2018-04-27 CN CN201820624953.9U patent/CN208106669U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998560A (en) * | 2020-08-31 | 2020-11-27 | 林小燕 | Windproof reinforcing device for solar power generation device |
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