CN110165433A - A kind of flexible long-acting graphite earthing or grounding means of Wind turbines and its construction method - Google Patents
A kind of flexible long-acting graphite earthing or grounding means of Wind turbines and its construction method Download PDFInfo
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- CN110165433A CN110165433A CN201910462670.8A CN201910462670A CN110165433A CN 110165433 A CN110165433 A CN 110165433A CN 201910462670 A CN201910462670 A CN 201910462670A CN 110165433 A CN110165433 A CN 110165433A
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- upper housing
- lead screw
- gear
- earthing
- sliding
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 69
- 239000010439 graphite Substances 0.000 title claims abstract description 69
- 238000010276 construction Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 94
- 238000005260 corrosion Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000008450 motivation Effects 0.000 claims 1
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of flexible long-acting graphite earthing or grounding means of Wind turbines and its construction methods, it is related to electric equipment protection technical field, including anti-corrosion box and earthing mechanism, the earthing mechanism includes shell, mobile mechanism is equipped in the shell, fixed mechanism box clamp system, the present invention passes through setting transparency window, it can be convenient and the connection of soft graphite is observed, by the way that splined tube is arranged, splined shaft and fixed mechanism, it can be in the external fixation and release realized to soft graphite of shell, by the way that mobile mechanism is arranged, the fixed mechanism at both ends be can be realized simultaneously towards or away from movement, by the way that clamp system is arranged, the fixation to the two long-acting graphite of flexibility can be realized in clamping slot, in summary, the present apparatus can be in the case where not opening shell, the two long-acting graphite of flexibility disengaged in device are connected It connects and fixes, accelerate the investigation and repairing of earthing or grounding means route, save the time, improve efficiency.
Description
Technical field
The present invention relates to electric equipment protection technical fields, and in particular to a kind of flexible long-acting graphite ground connection of Wind turbines
Device and its construction method.
Background technique
Soft graphite lightning protection line is manufactured using high charcoal graphite line, and the connection end connecting with shaft tower uses stainless conjunction
Gold, the product category radio frequency body, corrosion-resistant, non-corrosive, ground resistance are stable, heavy current impact does not strike back, do not damage, resistance
Constant, high-low temperature resistant, long service life 30 years, it is non-maintaining, safe and reliable.Using by environment, weather conditions limitation, installation is not just
Victory is not necessarily to electrogas welding, and saving of work and time saves material, and funds, energy conservation, environmental protection is antitheft, is especially suitable for acid soil, alkaline soil
Earth, marsh, damp and hot area and seabeach use.
In the use process of soft graphite lightning protection line, usually using Wiring nose directly by soft graphite lightning protection
One end of line is fixed, and is then fixed the Wiring nose of two soft graphite lightning protection lines by bolt, this method causes not having
There are butted line nose and the junction of flexible long-acting graphite to fix, be easy to cause the junction of thunder-preventing graphite grounding line to disengage, cause
Earthing or grounding means is not available, and in route troubleshooting procedure, it needs for earthing or grounding means to be opened for check and overhaul, causes to connect
Ground device will be devoted a tremendous amount of time after going wrong and be overhauled.
Summary of the invention
The purpose of the present invention is to provide a kind of flexible long-acting graphite earthing or grounding means of Wind turbines and its construction method, with
It solves the above-mentioned multiple defects caused by the prior art.
A kind of flexible long-acting graphite earthing or grounding means of Wind turbines, the ground connection machine including anti-corrosion box and in anti-corrosion box
Structure, the earthing mechanism include shell, and the shell is equipped with snap-ring groove, and the card for fixing shell is equipped in the snap-ring groove
Hoop, the shell are made of upper housing and lower case, and the upper housing is equipped with transparency window, and the lower section of the upper housing is equipped with
Mobile mechanism, the bottom of the sliding shoe of the mobile mechanism left and right ends are equipped with fixed mechanism, the side of the fixed mechanism
Equipped with rotating nut, the rotating nut is fixedly connected with one end of the two-way lead screw two of fixed mechanism, and the fixed mechanism is logical
Mobile mechanism is crossed towards or away from movement, center symmetric setting of two fixed mechanisms about upper housing, the side of the upper housing
Wall be equipped with arc-shaped slot corresponding with fixed mechanism, the lower case be equipped with fixing groove corresponding with fixed mechanism and
The placing groove being connected with fixing groove, the middle part of the lower case are equipped with clamping slot, are equipped with clamp system, institute in the clamping slot
It states clamping slot to be connected with two placing grooves, be all provided on the side wall of the lower case rear and front end there are two corresponding with fixing groove
Splined tube, the splined tube is rotatablely connected by bearing holder (housing, cover) and lower case, slidably connected and its gap in the splined tube
The splined shaft of cooperation, one end of the splined shaft are fixedly connected with turntable two, and the other end is recessed equipped with matching with rotating nut
Slot.
Preferably, the mobile mechanism include gear one and be located at the symmetrically arranged gear two in one rear and front end of gear, institute
It states gear one and gear two is intermeshed, the top of the upper housing is equipped with turntable one, is threaded with and passes through on the turntable one
It is through at the hand the turn of the screw of turntable one, the turntable one is fixedly connected by shaft with gear one and is rotatablely connected with upper housing, institute
The lower section for stating gear two is equipped with bevel gear one, and the gear two is fixedly connected by shaft with bevel gear one and is rotated with upper housing
It connects, is fixedly installed with mounting plate corresponding with gear two, the side of the mounting plate and upper housing below the upper housing
It is equipped with sliding shoe between wall, lead screw, the lead screw and upper housing are threaded on the sliding shoe and mounting plate is rotatablely connected,
The guide rod one being slidably connected with sliding shoe is fixedly connected between the upper housing and mounting plate, the bevel gear two is located at peace
Loading board close to gear two side and be fixedly connected with one end of lead screw, the bevel gear one is intermeshed with bevel gear two.
Preferably, the fixed mechanism includes two-way lead screw two and the mounting blocks for being fixedly installed in sliding shoe bottom, described
It is equipped with sliding slot in mounting blocks, the sliding block two that front and back is arranged is symmetrically arranged in the sliding slot, the lower end of the sliding block two is fixedly mounted
There is the arc fixture block two being oppositely arranged, two sliding blocks two are threadedly connected to the different thread segments of two-way lead screw two respectively, described double
It is located in sliding slot to lead screw two and is rotatablely connected with mounting blocks.
Preferably, the clamp system includes handwheel, two-way lead screw one and the sliding block one being symmetrically set in clamping slot, described
The upper end of sliding block one is fixedly installed with the arc fixture block one being oppositely arranged, and is fixedly connected in the clamping slot and slides with sliding block one
The guide rod two of cooperation, two sliding blocks one are threadedly connected to the different thread segments of two-way lead screw one, and the two-way lead screw one is under
Housing into rotation connection, the handwheel are located at the side of lower case and are fixedly connected with one end of two-way lead screw one.
Preferably, the clip includes half cranse and connector, and the connector links into an integrated entity two and half cranses shape
At a closed type cranse and inlay card is in the snap-ring groove, and the connector includes bolt one and the spiral shell that matches with bolt one
Mother one.
Preferably, the anti-corrosion box includes box body and the box cover on box body, and the box body and box cover pass through rotation axis
It is rotatablely connected, attachment base is equipped on the box body and box cover, passes through locking device between two attachment bases and locks, the locking
Device include bolt two and with bolt two match nut two, the box body be equipped with corresponding through slot, the box body
Bottom four corners are fixedly connected with mounting base.
A kind of construction method of the flexible long-acting graphite earthing or grounding means of Wind turbines, comprising the following steps:
Step 1 digs latticed groove according to design requirement in the foundation pit below Wind turbines；
Step 2 digs out the mounting groove matched with anti-corrosion box shape in the intersection of every groove；
Flexible long-acting graphite is laid in latticed groove, earthing or grounding means is placed in mounting groove, is passed through by step 3
Mounting base 16 is fixed, and then connects two long-acting graphite of flexibility of the intersection of every groove by earthing or grounding means, tool
Body connection method is as follows；
8, it by rotating nut two, separates nut two with nut two, then opens the lid, by the long-acting stone of flexibility at both ends
Ink passes through through slot and is placed in inside anti-corrosion box；
9, it by rotating nut one, separates nut one with nut one, then will be located at two and half cranses in snap-ring groove
It separates, takes out upper housing, the long-acting graphite of flexibility being located in anti-corrosion box is individually positioned in two placing grooves；
10, handwheel is rotated, handwheel drives two-way lead screw one to rotate, and makes to slide on two sliding blocks one in clamping slot and drives arc
Clevis block one moves toward one another, and by the long-acting graphite contact of flexibility in two placing grooves and clamps；
11, upper housing is placed in lower case and is fixed upper housing and lower case by clip and connector,
12, by rotating forward turntable one, band moving gear one is rotated, and rotates gear two and bevel gear one, to make to bore
Gear two and lead screw rotation, to drive sliding shoe to slide along lead screw to one end far from gear two, when turntable one can not be positive
When rotation, sliding shoe is located at upper housing both ends and contacts with upper housing inner sidewall, and splined shaft is at this moment passed through the flower positioned at both ends
Key pipe is inserted into the inside of earthing mechanism, and splined shaft and rotating nut are located on same central axes, is fixed by rotating with splined shaft
The turntable two of connection, is caught in rotating nut in groove；
13, turntable two is continued to rotate, splined shaft drives rotating nut rotation, rotates two-way lead screw two, make to slide on cunning
Two sliding blocks two in slot drive arc fixture block two to slide in opposition, and realize the clamping to the long-acting graphite of flexibility being located in sliding slot；
14, box body and box cover are closed finally by bolt two and the nut matched with bolt two two.
Step 4 backfills earthing or grounding means using soft fine earth, backfills thickness in 200mm or more, and pass through tool
Fine earth is consolidated；
Step 5, measurement of Grounding Resistance, when ground resistance meets the requirement of grounding resistance, backfill native soil to wind-powered electricity generation
The foundation pit of unit is equal with surrounding ground level.
The present invention has the advantages that can be convenient the connection to the two long-acting graphite of flexibility by setting transparency window
It is observed, by setting splined tube, splined shaft and fixed mechanism, can be realized in the external of shell to flexible long-acting graphite
Fixed and release can be realized simultaneously the fixed mechanism at both ends towards or away from movement, to realize by the way that mobile mechanism is arranged
Flexible long-acting graphite can be realized flexible long to two towards or away from movement by the way that clamp system is arranged in clamping slot
The fixation of graphite is imitated, in summary, the present apparatus can be flexible long to two disengaged in device in the case where not opening shell
Effect graphite is attached and fixes, and accelerates the investigation and repairing of earthing or grounding means route, saves the time, improve efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that box is grounded in the present invention.
Fig. 2 is the structural schematic diagram of anti-corrosion box in the present invention
Fig. 3 is the structural schematic diagram of earthing mechanism upper housing in the present invention.
Fig. 4 is the bottom view of earthing mechanism upper housing in the present invention.
Fig. 5 is the structural schematic diagram of earthing mechanism lower case in the present invention.
Fig. 6 is the top view of earthing mechanism lower case in the present invention.
Fig. 7 is the structural schematic diagram of splined tube in the present invention.
Fig. 8 is spline shaft structure schematic diagram in the present invention.
Wherein, 1- anti-corrosion box, 11- box cover, 12- box body, 13- rotation axis, 14- attachment base, 15- locking device, 151- spiral shell
Bolt two, 152- nut two, 16- mounting base 16,17- through slot, 2- upper housing, 21- mobile mechanism, 211- turntable one, 212- gear
One, 213- gear two, 214- bevel gear one, 215- bevel gear two, 216- lead screw, 217- guide rod one, 218- sliding shoe, 219-
Hand the turn of the screw, 220- mounting plate 220,22- fixed mechanism, 221- mounting blocks, 222- sliding slot, 223- sliding block two, the two-way silk of 224-
Thick stick two, 225- arc fixture block two, 226- rotating nut, 23- transparency window, 24- arc-shaped slot, 3- lower case, 31- placing groove, 32-
Fixing groove, 33- clamping slot, 34- clamp system, 341- sliding block one, the two-way lead screw one of 342-, 343- arc fixture block one, 344- hand
Wheel, 345- guide rod two, 35- splined tube, 36- splined shaft, 37- turntable two, 38- groove, 4- snap-ring groove, half cranse of 5-, 6- connect
Fitting, 61- bolt one, 62- nut one.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
As shown in Figures 1 to 8, a kind of flexible long-acting graphite earthing or grounding means of Wind turbines and its construction method, including it is anti-
Rotten box 1 and the earthing mechanism in anti-corrosion box 1, the earthing mechanism include shell, and the shell is equipped with snap-ring groove 4, institute
The clip being equipped in snap-ring groove 4 for fixing shell is stated, the shell is made of upper housing 2 and lower case 3, the upper housing
2 are equipped with transparency window 23, and the lower section of the upper housing 2 is equipped with mobile mechanism 21, the sliding of 21 left and right ends of mobile mechanism
The bottom of block 218 is equipped with fixed mechanism 22, and the side of the fixed mechanism 22 is equipped with rotating nut 226, the rotating nut
226 are fixedly connected with one end of the two-way lead screw 2 224 of fixed mechanism 22, and the fixed mechanism 22 is opposite by mobile mechanism 21
Or be moved away from, center symmetric setting of two fixed mechanisms 22 about upper housing 2, the side wall of the upper housing 2 be equipped with
The corresponding arc-shaped slot 24 of fixed mechanism 22, the lower case 3 be equipped with fixing groove 32 corresponding with fixed mechanism 22 and
The placing groove 31 being connected with fixing groove 32, the middle part of the lower case 3 are equipped with clamping slot 33, are equipped with folder in the clamping slot 33
Tight mechanism 34, the clamping slot 33 are connected with two placing grooves 31, are equipped with two on the side wall of 3 rear and front end of lower case
A splined tube 35 corresponding with fixing groove 32, the splined tube 35 are rotatablely connected by bearing holder (housing, cover) and lower case 3, the spline
The splined shaft 36 with its clearance fit is slidably connected in pipe 35, one end of the splined shaft 36 is fixedly connected with turntable 2 37,
The other end is equipped with the groove 38 matched with rotating nut 226.
In the present embodiment, the mobile mechanism 21 includes gear 1 and symmetrically sets positioned at one 212 rear and front end of gear
The gear 2 213 set, the gear 1 are intermeshed with gear 2 213, and the top of the upper housing 2 is equipped with turntable one
211, the hand the turn of the screw 219 through turntable 1, the turntable 1 and gear are threaded on the turntable 1
One 212 are fixedly connected by shaft and are rotatablely connected with upper housing 2, and the lower section of the gear 2 213 is equipped with bevel gear 1,
The gear 2 213 is fixedly connected by shaft with bevel gear 1 and is rotatablely connected with upper housing 2, under the upper housing 2
Side is fixedly installed with mounting plate 220 corresponding with gear 2 213, is equipped between the mounting plate 220 and the side wall of upper housing 2
Sliding shoe 218, lead screw, the lead screw and upper housing 2 are threaded on the sliding shoe 218 and mounting plate 220 is rotatablely connected,
The guide rod 1 being slidably connected with sliding shoe 218, the cone tooth are fixedly connected between the upper housing 2 and mounting plate 220
2 215 are taken turns to be located at mounting plate 220 close to the side of gear 2 213 and be fixedly connected with one end of lead screw, the bevel gear 1
It is intermeshed with bevel gear 2 215, turntable 1, band moving gear 1 is rotated by the hand the turn of the screw 219 on turntable 1
Rotation makes to rotate with one 212 pitch wheel 2 213 of gear, rotates bevel gear 1, to make bevel gear 2 215
And the lead screw 216 being fixedly connected with bevel gear 2 215 rotates, to drive the sliding shoe 218 being threadedly coupled with lead screw 216 along silk
216 setting direction of thick stick sliding, to realize the phase for driving intracorporal two fixed mechanisms 22 of shell by a rotation of turntable 1
To or opposite sliding keep the bottom of hand the turn of the screw 219 and the upper surface of upper housing 2 close while by rotation hand the turn of the screw 219
The relatively fixed of turntable 1 and shell may be implemented in contact.
In the present embodiment, the fixed mechanism 22 includes two-way lead screw 2 224 and is fixedly installed in 218 bottom of sliding shoe
Mounting blocks 221, be equipped with sliding slot 222 in the mounting blocks 221, the sliding block two that front and back is arranged be symmetrically arranged in the sliding slot 222
223, the lower end of the sliding block 2 223 is fixedly installed with the arc fixture block 2 225 being oppositely arranged, and two sliding blocks 2 223 distinguish spiral shell
Line is connected to the different thread segments of two-way lead screw 2 224, the two-way lead screw 2 224 be located in sliding slot 222 and with mounting blocks 221
Rotation connection, fixed mechanism 22 is moved by mobile mechanism 21 along 216 setting direction of lead screw, when between two fixed mechanisms 22
Apart from it is farthest when, the splined tube 35 of rotating nut 226 and shell end is located on same central axes, when two fixed mechanisms 22 it
Between distance it is nearest when, other splined tube 35 is located on same central axes on rotating nut 226 and shell, and splined shaft 36 is led to
The inside that splined tube 35 is inserted into shell is crossed, by rotating the turntable 2 37 being fixedly connected with splined shaft 36, blocks rotating nut 226
Enter in groove 38, then proceed to rotation turntable 2 37, splined shaft 36 drives rotating nut 226 to rotate, makes 2 224 turns of two-way lead screw
It is dynamic, make the sliding block 2 223 being threadedly engaged with two-way lead screw 2 224 drive arc fixture block 2 225 in sliding slot 222 towards or away from
Fixation or release to the long-acting graphite of flexibility being located in placing groove 31 are realized in sliding.
In the present embodiment, the clamp system 34 includes handwheel 344, two-way lead screw 1 and is symmetrically set in clamping slot
Sliding block 1 in 33, the upper end of the sliding block 1 are fixedly installed with the arc fixture block 1 being oppositely arranged, the clamping
The guide rod 2 345 being slidably matched with sliding block 1 is fixedly connected in slot 33, two sliding blocks 1 are threadedly connected to two-way
The different thread segments of lead screw 1, the two-way lead screw 1 are rotatablely connected with lower case 3, and the handwheel 344 is located at lower casing
The side of body 3 is simultaneously fixedly connected with one end of two-way lead screw 1, and by rotating handwheel 344, handwheel 344 drives two-way lead screw
One 342 rotations, make slide in clamping slot 33 two sliding blocks 1 that arc fixture block 1 be driven to slide in opposition, and make to be located at two
The long-acting graphite contact of flexibility in a placing groove 31 simultaneously clamps.
Embodiment 2
As shown in Figures 1 to 8, a kind of flexible long-acting graphite earthing or grounding means of Wind turbines and its construction method, including it is anti-
Rotten box 1 and the earthing mechanism in anti-corrosion box 1, the earthing mechanism include shell, and the shell is equipped with snap-ring groove 4, institute
The clip being equipped in snap-ring groove 4 for fixing shell is stated, the shell is made of upper housing 2 and lower case 3, the upper housing
2 are equipped with transparency window 23, and the lower section of the upper housing 2 is equipped with mobile mechanism 21, the sliding of 21 left and right ends of mobile mechanism
The bottom of block 218 is equipped with fixed mechanism 22, and the side of the fixed mechanism 22 is equipped with rotating nut 226, the rotating nut
226 are fixedly connected with one end of the two-way lead screw 2 224 of fixed mechanism 22, and the fixed mechanism 22 is opposite by mobile mechanism 21
Or be moved away from, center symmetric setting of two fixed mechanisms 22 about upper housing 2, the side wall of the upper housing 2 be equipped with
The corresponding arc-shaped slot 24 of fixed mechanism 22, the lower case 3 be equipped with fixing groove 32 corresponding with fixed mechanism 22 and
The placing groove 31 being connected with fixing groove 32, the middle part of the lower case 3 are equipped with clamping slot 33, are equipped with folder in the clamping slot 33
Tight mechanism 34, the clamping slot 33 are connected with two placing grooves 31, are equipped with two on the side wall of 3 rear and front end of lower case
A splined tube 35 corresponding with fixing groove 32, the splined tube 35 are rotatablely connected by bearing holder (housing, cover) and lower case 3, the spline
The splined shaft 36 with its clearance fit is slidably connected in pipe 35, one end of the splined shaft 36 is fixedly connected with turntable 2 37,
The other end is equipped with the groove 38 matched with rotating nut 226.
In the present embodiment, the mobile mechanism 21 includes gear 1 and symmetrically sets positioned at one 212 rear and front end of gear
The gear 2 213 set, the gear 1 are intermeshed with gear 2 213, and the top of the upper housing 2 is equipped with turntable one
211, the hand the turn of the screw 219 through turntable 1, the turntable 1 and gear are threaded on the turntable 1
One 212 are fixedly connected by shaft and are rotatablely connected with upper housing 2, and the lower section of the gear 2 213 is equipped with bevel gear 1,
The gear 2 213 is fixedly connected by shaft with bevel gear 1 and is rotatablely connected with upper housing 2, under the upper housing 2
Side is fixedly installed with mounting plate 220 corresponding with gear 2 213, is equipped between the mounting plate 220 and the side wall of upper housing 2
Sliding shoe 218, lead screw, the lead screw and upper housing 2 are threaded on the sliding shoe 218 and mounting plate 220 is rotatablely connected,
The guide rod 1 being slidably connected with sliding shoe 218, the cone tooth are fixedly connected between the upper housing 2 and mounting plate 220
2 215 are taken turns to be located at mounting plate 220 close to the side of gear 2 213 and be fixedly connected with one end of lead screw, the bevel gear 1
It is intermeshed with bevel gear 2 215, turntable 1, band moving gear 1 is rotated by the hand the turn of the screw 219 on turntable 1
Rotation makes to rotate with one 212 pitch wheel 2 213 of gear, rotates bevel gear 1, to make bevel gear 2 215
And the lead screw 216 being fixedly connected with bevel gear 2 215 rotates, to drive the sliding shoe 218 being threadedly coupled with lead screw 216 along silk
216 setting direction of thick stick sliding, to realize the phase for driving intracorporal two fixed mechanisms 22 of shell by a rotation of turntable 1
To or opposite sliding keep the bottom of hand the turn of the screw 219 and the upper surface of upper housing 2 close while by rotation hand the turn of the screw 219
The relatively fixed of turntable 1 and shell may be implemented in contact.
In the present embodiment, the fixed mechanism 22 includes two-way lead screw 2 224 and is fixedly installed in 218 bottom of sliding shoe
Mounting blocks 221, be equipped with sliding slot 222 in the mounting blocks 221, the sliding block two that front and back is arranged be symmetrically arranged in the sliding slot 222
223, the lower end of the sliding block 2 223 is fixedly installed with the arc fixture block 2 225 being oppositely arranged, and two sliding blocks 2 223 distinguish spiral shell
Line is connected to the different thread segments of two-way lead screw 2 224, the two-way lead screw 2 224 be located in sliding slot 222 and with mounting blocks 221
Rotation connection, fixed mechanism 22 is moved by mobile mechanism 21 along 216 setting direction of lead screw, when between two fixed mechanisms 22
Apart from it is farthest when, the splined tube 35 of rotating nut 226 and shell end is located on same central axes, when two fixed mechanisms 22 it
Between distance it is nearest when, other splined tube 35 is located on same central axes on rotating nut 226 and shell, and splined shaft 36 is led to
The inside that splined tube 35 is inserted into shell is crossed, by rotating the turntable 2 37 being fixedly connected with splined shaft 36, blocks rotating nut 226
Enter in groove 38, then proceed to rotation turntable 2 37, splined shaft 36 drives rotating nut 226 to rotate, makes 2 224 turns of two-way lead screw
It is dynamic, make the sliding block 2 223 being threadedly engaged with two-way lead screw 2 224 drive arc fixture block 2 225 in sliding slot 222 towards or away from
Fixation or release to the long-acting graphite of flexibility being located in placing groove 31 are realized in sliding.
In the present embodiment, the clamp system 34 includes handwheel 344, two-way lead screw 1 and is symmetrically set in clamping slot
Sliding block 1 in 33, the upper end of the sliding block 1 are fixedly installed with the arc fixture block 1 being oppositely arranged, the clamping
The guide rod 2 345 being slidably matched with sliding block 1 is fixedly connected in slot 33, two sliding blocks 1 are threadedly connected to two-way
The different thread segments of lead screw 1, the two-way lead screw 1 are rotatablely connected with lower case 3, and the handwheel 344 is located at lower casing
The side of body 3 is simultaneously fixedly connected with one end of two-way lead screw 1, and by rotating handwheel 344, handwheel 344 drives two-way lead screw
One 342 rotations, make slide in clamping slot 33 two sliding blocks 1 that arc fixture block 1 be driven to slide in opposition, and make to be located at two
The long-acting graphite contact of flexibility in a placing groove 31 simultaneously clamps.
In the present embodiment, the clip includes half cranse 5 and connector 6, and the connector 6 connects two and half cranses 5
An integrally formed closed type cranse and inlay card are connected into the snap-ring groove 4, the connector 6 includes bolt 1 and and spiral shell
Two and half cranses 5 can be fixedly connected to form one by bolt 1 and nut 1 by the nut 1 that bolt 1 matches
A closed type cranse makes upper housing 2 and lower case 3 form a shell to realize the fixation between upper housing 2 and lower case 3
Body.
In the present embodiment, the anti-corrosion box 1 includes box body 12 and the box cover 11 on box body 12,12 He of box body
Box cover 11 is rotatablely connected by rotation axis 13, is equipped with attachment base 14 on the box body 12 and box cover 11, two attachment bases 14 it
Between locked by locking device 15, the locking device 15 includes bolt 2 151 and the nut 2 152 that matches with bolt 2 151,
The box body 12, which is equipped with, is fixedly connected with mounting base 16, anti-corrosion with corresponding through slot 17, the bottom four corners of the box body 12
Box 1 can play a protective role to earthing mechanism, prevent earthing mechanism from corroding, and can be convenient anti-corrosion box 1 by locking device 15
Open or close, can be convenient the installation of the present apparatus by attachment base 14.
A kind of construction method of the flexible long-acting graphite earthing or grounding means of Wind turbines, comprising the following steps:
Step 1 digs latticed groove according to design requirement in the foundation pit below Wind turbines；
Step 2 digs out the mounting groove matched with 1 shape of anti-corrosion box in the intersection of every groove；
Flexible long-acting graphite is laid in latticed groove, earthing or grounding means is placed in mounting groove, is passed through by step 3
Mounting base 16 is fixed, and then connects two long-acting graphite of flexibility of the intersection of every groove by earthing or grounding means, tool
Body connection method is as follows；
1, it by rotating nut 226 2 152, separates nut 2 152 with nut two, then opens the lid 11, by both ends
The long-acting graphite of flexibility pass through through slot 17 and be placed in inside anti-corrosion box 1；
2, by rotating nut 226 1, separate nut 1 with nut one, two then will be located in snap-ring groove 4
Half cranse 5 separates, and takes out upper housing 2, and the long-acting graphite of flexibility being located in anti-corrosion box 1 is individually positioned in two placing grooves 31
It is interior；
3, handwheel 344 is rotated, handwheel 344 drives two-way lead screw 1 to rotate, makes slide in clamping slot 33 two cunnings
Block 1 drives arc fixture block 1 to move toward one another, and by the long-acting graphite contact of flexibility in two placing grooves 31 and clamps；
4, upper housing 2 is placed in lower case 3 and is fixed upper housing 2 and lower case 3 by clip and connector 6,
5, by rotating forward turntable 1, band moving gear 1 is rotated, and makes gear 2 213 and one 214 turns of bevel gear
It is dynamic, to make bevel gear 2 215 and lead screw rotate, to drive sliding shoe 218 sliding to one end far from gear 2 213 along lead screw
Dynamic, when turntable 1 can not rotate forward, sliding shoe 218 is located at 2 both ends of upper housing and contacts with 2 inner sidewall of upper housing, this
When by splined shaft 36 by be located at both ends splined tube 35 be inserted into earthing mechanism inside, splined shaft 36 with rotating nut 226
In on same central axes, by rotating the turntable 2 37 being fixedly connected with splined shaft 36, rotating nut 226 is made to be caught in groove 38
It is interior；
6, turntable 2 37 is continued to rotate, splined shaft 36 drives rotating nut 226 to rotate, and rotates two-way lead screw 2 224, makes
Two sliding blocks 2 223 slided in sliding slot 222 drive arc fixture block 2 225 to slide in opposition, and realize in sliding slot 222
The clamping of flexible long-acting graphite；
7, box body 12 and box cover 11 are closed finally by bolt 2 151 and the nut matched with bolt 2 151 2 152
It closes.
Step 4 backfills earthing or grounding means using soft fine earth, backfills thickness in 200mm or more, and pass through tool
Fine earth is consolidated；
Step 5, measurement of Grounding Resistance, when ground resistance meets the requirement of grounding resistance, backfill native soil to wind-powered electricity generation
The foundation pit of unit is equal with surrounding ground level.
The course of work and principle: first by rotating nut 2 152, separate nut 2 152 with nut 2 154, then
It opens the lid 11, the long-acting graphite of flexibility at both ends is passed through into through slot 17 and is placed in inside anti-corrosion box；By rotating nut 1, make
Nut 1 is separated with nut 1, then separates two and half cranses 5 being located in snap-ring groove 4, upper housing 2 is taken out, by position
In in two placing grooves 31 that the long-acting graphite of flexibility in anti-corrosion box 1 is individually positioned in lower case 3, handwheel 344, handwheel are rotated
344 drive two-way lead screw 1 to rotate, and slide in clamping slot 33 two sliding blocks 1 is made to drive one 343 phase of arc fixture block
To sliding, makes to be located at the long-acting graphite contact of flexibility in two placing grooves 31 and clamps, upper housing 2 is placed in lower case 3,
Then two and half clips 5 are respectively placed in the snap-ring groove on upper housing 2 and lower case 3, by bolt 1 and with its spiral shell
The nut 1 of line cooperation is fixed by upper housing 2 and lower case 3, forms shell, placing groove 31 and 24 shape of arc-shaped slot at this moment
At a complete circular trough, turntable 1, band moving gear one are rotated forward by the hand the turn of the screw 219 on turntable 1
212 rotations make to rotate with one 212 pitch wheel 2 213 of gear, and band dynamic bevel gear 1 rotates, to make bevel gear
2 215 and the lead screw 216 that is fixedly connected in bevel gear 2 215 rotate, to drive the sliding shoe being threadedly coupled with lead screw 216
218 slide along lead screw 216 to one end far from gear 2 213, when turntable 1 can not rotate forward, rotate hand the turn of the screw
219, the upper surface of the bottom and upper housing 2 that make hand the turn of the screw 219 is in close contact, to realize the phase of turntable 1 with shell
To fixation, sliding shoe 218 is located at the both ends of enclosure interior and contacts with 2 inner sidewall of upper housing at this time, at this moment rotating nut 226 with
The splined tube 35 of shell end is located on same central axes, and splined shaft 36 is inserted into shell by being located at the splined tube 35 at both ends
Inside is caught in rotating nut 226 in groove 38, then proceedes to by rotating the turntable 2 37 being fixedly connected with splined shaft 36
Turntable 2 37 is rotated, splined shaft 36 drives rotating nut 226 to rotate, and rotates two-way lead screw 2 224, makes and two-way lead screw two
224 sliding blocks 2 223 being threadedly engaged drive arc fixture block 2 225 to slide in opposition in sliding slot 222, realize to positioned at placing groove 31
The clamping of the interior long-acting graphite of flexibility, can avoid the disengagement of the two long-acting graphite of flexibility, finally by 2 151 He of bolt as far as possible
The nut 2 152 matched with bolt 2 151 shuts box body 12 and box cover 11, when flexible long-acting graphite disengages, opens box
Whether body 12 and box cover 11 are disengaged by 23 rapid examination of transparency window, two long-acting graphite of flexibility, if disengagement, first by turning
It starts wheel 344, handwheel 344 drives two-way lead screw 1 to rotate, and drives slide in clamping slot 33 two sliding blocks 1
Arc fixture block 1 slides opposite to each other, makes the distance between two arc fixture blocks 1 maximum, then unscrews hand the turn of the screw 219,
Turntable 1 is rotated backward by hand the turn of the screw 219, band moving gear 1 rotates, makes and the intermeshing tooth of gear 1
2 213 rotations are taken turns, band dynamic bevel gear 1 rotates, thus the silk for making bevel gear 2 215 and being fixedly connected in bevel gear 2 215
Thick stick 216 rotates, to drive the sliding shoe 218 being threadedly coupled with lead screw 216 along lead screw 216 to one end close to gear 2 213
Sliding, when turntable 1 can not rotate forward, sliding shoe 21 is contacted with the side wall of the mounting plate 220220 in upper housing 2, this
When rotating nut 226 and shell on other splined tube 35 be located on same central axes, splined shaft 36 is passed through positioned at both ends
Splined tube 35 is inserted into the inside of shell, by rotating the turntable 2 37 being fixedly connected with splined shaft 36, is caught in rotating nut 226
In groove 38, rotation turntable 2 37 is then proceeded to, splined shaft 36 drives rotating nut 226 to rotate, makes 2 224 turns of two-way lead screw
It is dynamic, make to drive that arc fixture block 2 225 is opposite in sliding slot 222 to be slided with the sliding block 2 223 that two-way lead screw 2 224 is threadedly engaged,
Flexible long-acting graphite is unclamped, is being fixed two long-acting graphite of flexibility being located in clamping slot 33 by clamp system 34, then
Two fixed mechanisms 22 are moved to the both ends of enclosure interior by mobile mechanism 21, then pass through hand the turn of the screw 219 for turntable
One 211 is relatively fixed with shell, then is fixed flexible long-acting graphite by fixed mechanism 22, will prevent finally by locking device 15
Rotten box 1 is locked.
Based on above-mentioned, the present invention by setting transparency window, can be convenient to the connection of the two long-acting graphite of flexibility into
Row observation can consolidate flexible long-acting graphite in external realize of shell by setting splined tube, splined shaft and fixed mechanism
Fixed and release can be realized simultaneously the fixed mechanism at both ends towards or away from movement, to realize soft by the way that mobile mechanism is arranged
Property long-acting graphite towards or away from movement, by the way that clamp system is arranged, can be realized in clamping slot long-acting to two flexibilities
The fixation of graphite, in summary, the present apparatus can be long-acting to two flexibilities disengaged in device in the case where not opening shell
Graphite is attached and fixes, and accelerates the investigation and repairing of earthing or grounding means route, saves the time, improve efficiency.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (7)
1. a kind of flexible long-acting graphite earthing or grounding means of Wind turbines, which is characterized in that including anti-corrosion box (1) and be located at anti-corrosion box
(1) earthing mechanism in, the earthing mechanism include shell, and the shell is equipped with snap-ring groove (4), in the snap-ring groove (4)
Equipped with the clip for fixing shell, the shell is made of upper housing (2) and lower case (3), is set on the upper housing (2)
Have transparency window (23), the lower section of the upper housing (2) is equipped with mobile mechanism (21), the cunning of mobile mechanism (21) left and right ends
The bottom of motion block (218) is equipped with fixed mechanism (22), and the side of the fixed mechanism (22) is equipped with rotating nut (226), institute
It states rotating nut (226) to be fixedly connected with one end of the two-way lead screw two (224) of fixed mechanism (22), the fixed mechanism (22)
By mobile mechanism (21) towards or away from movement, center symmetric setting of two fixed mechanisms (22) about upper housing (2), institute
The side wall for stating upper housing (2) is equipped with arc-shaped slot (24) corresponding with fixed mechanism (22), and the lower case (3) is equipped with
Fixing groove (32) corresponding with fixed mechanism (22) and the placing groove (31) being connected with fixing groove (32), the lower case
(3) middle part is equipped with clamping slot (33), is equipped with clamp system (34) in the clamping slot (33), the clamping slot (33) with two
Placing groove (31) is connected, and is all provided on the side wall of lower case (3) rear and front end there are two corresponding with fixing groove (32)
Splined tube (35), the splined tube (35) are rotatablely connected by bearing holder (housing, cover) and lower case (3), and sliding connects in the splined tube (35)
It is connected to and is fixedly connected with turntable two (37), the other end with the splined shaft of its clearance fit (36), one end of the splined shaft (36)
Equipped with the groove (38) matched with rotating nut (226).
2. the flexible long-acting graphite earthing or grounding means of a kind of Wind turbines according to claim 1, it is characterised in that: the shifting
Motivation structure (21) includes gear one (212) and is located at the symmetrically arranged gear two (213) in gear one (212) rear and front end, described
Gear one (212) and gear two (213) are intermeshed, and the top of the upper housing (2) is equipped with turntable one (211), the turntable
The hand the turn of the screw (219) through turntable one (211), the turntable one (211) and gear one are threaded on one (211)
(212) it is fixedly connected by shaft and is rotatablely connected with upper housing (2), the lower section of the gear two (213) is equipped with bevel gear one
(214), the gear two (213) is fixedly connected by shaft with bevel gear one (214) and is rotatablely connected with upper housing (2), institute
State and be fixedly installed with mounting plate (220) corresponding with gear two (213) below upper housing (2), the mounting plate (220) with
Sliding shoe (218) are equipped between the side wall of upper housing (2), are threaded with lead screw (216) on the sliding shoe (218), it is described
Lead screw (216) and upper housing (2) and mounting plate (220) are rotatablely connected, fixed between the upper housing (2) and mounting plate (220)
It is connected with the guide rod one (217) being slidably connected with sliding shoe (218), the bevel gear two (215) is located at mounting plate (220) and leans on
The side of nearly gear two (213) is simultaneously fixedly connected with one end of lead screw (216), the bevel gear one (214) and bevel gear two
(215) it is intermeshed.
3. the flexible long-acting graphite earthing or grounding means of a kind of Wind turbines according to claim 2, it is characterised in that: described solid
Determining mechanism (22) includes two-way lead screw two (224) and the mounting blocks (221) for being fixedly installed in sliding shoe (218) bottom, the peace
It fills in block (221) and is equipped with sliding slot (222), the sliding block two (223) that front and back is arranged, the cunning are symmetrically arranged in the sliding slot (222)
The lower end of block two (223) is fixedly installed with the arc fixture block two (225) being oppositely arranged, and screw thread connects two sliding blocks two (223) respectively
The different thread segments of two-way lead screw two (224) are connected to, the two-way lead screw two (224) is located in sliding slot (222) and and mounting blocks
(221) it is rotatablely connected.
4. the flexible long-acting graphite earthing or grounding means of a kind of Wind turbines according to claim 3, it is characterised in that: the folder
Tight mechanism (34) includes handwheel (344), two-way lead screw one (342) and the sliding block one (341) being symmetrically set in clamping slot (33), institute
The upper end for stating sliding block one (341) is fixedly installed with the arc fixture block one (343) being oppositely arranged, fixed company in the clamping slot (33)
It is connected to the guide rod two (345) being slidably matched with sliding block one (341), two sliding blocks one (341) are threadedly connected to two-way lead screw one
(342) different thread segments, the two-way lead screw one (342) and lower case (3) are rotatablely connected, under the handwheel (344) is located at
The side of shell (3) is simultaneously fixedly connected with one end of two-way lead screw one (342).
5. the flexible long-acting graphite earthing or grounding means of a kind of Wind turbines according to claim 4, it is characterised in that: the card
Hoop includes half cranse (5) and connector (6), and the connector (6) links into an integrated entity two and half cranses (5) to form a closure
Simultaneously in the snap-ring groove (4), the connector (6) includes bolt one (61) and matches with bolt one (61) inlay card formula cranse
Nut one (62).
6. the flexible long-acting graphite earthing or grounding means of a kind of Wind turbines according to claim 5, it is characterised in that: described anti-
Rotten box (1) includes box body (12) and the box cover (11) on box body (12), and the box body (12) and box cover (11) pass through rotation
Axis (13) is rotatablely connected, and is equipped with attachment base (14) on the box body (12) and box cover (11), is led between two attachment bases (14)
Locking device (15) locking is crossed, the locking device (15) includes bolt two (151) and the nut two with bolt two (151) matching
(152), the box body (12), which is equipped with, is fixedly connected with peace with corresponding through slot (17), the bottom four corners of the box body (12)
It fills seat 16 (16).
7. a kind of construction method of the flexible long-acting graphite earthing or grounding means of Wind turbines according to claim 6, feature
It is, comprising the following steps:
Step 1 digs latticed groove according to design requirement in the foundation pit below Wind turbines；
Step 2 digs out the mounting groove matched with anti-corrosion box (1) shape in the intersection of every groove；
Flexible long-acting graphite is laid in latticed groove, earthing or grounding means is placed in mounting groove, installation is passed through by step 3
16 (16) of seat are fixed, and then connect two long-acting graphite of flexibility of the intersection of every groove by earthing or grounding means, tool
Body connection method is as follows:
1, by rotating nut (226) two (152), separate nut two (152) with nut two, then open the lid (11), will
The long-acting graphite of flexibility at both ends passes through through slot (17) and is placed in anti-corrosion box (1) inside；
2, by rotating nut (226) one, separate nut one (62) with nut one, then will be located in snap-ring groove (4) two
A half cranse (5) separates, and takes out upper housing (2), and the long-acting graphite of flexibility in anti-corrosion box (1) is individually positioned in two and is put
It sets in slot (31)；
3, handwheel (344) are rotated, handwheel (344) drives two-way lead screw one (342) rotation, makes slide in clamping slot (33) two
A sliding block one (341) drives arc fixture block one (343) to move toward one another, by the long-acting graphite contact of flexibility in two placing grooves (31)
And it clamps；
4, upper housing (2) is placed on lower case (3) and passes through clip and connector (6) for upper housing (2) and lower case (3)
It is fixed,
5, by rotating forward turntable one (211), band moving gear one (212) is rotated, and makes gear two (213) and bevel gear one
(214) rotate, thus make bevel gear two (215) and lead screw (216) rotation, thus drive sliding shoe (218) along lead screw (216) to
One end far from gear two (213) is slided, and when turntable one (211) can not rotate forward, sliding shoe (218) is located at upper housing
(2) it both ends and contacts with upper housing (2) inner sidewall, at this moment connects splined shaft (36) by being located at splined tube (35) insertion at both ends
The inside of ground mechanism, splined shaft (36) and rotating nut (226) are located on same central axes, solid with splined shaft (36) by rotation
Surely the turntable two (37) connected is caught in rotating nut (226) in groove (38)；
6, turntable two (37) is continued to rotate, splined shaft (36) drives rotating nut (226) rotation, turns two-way lead screw two (224)
It is dynamic, make two sliding blocks two (223) slided in sliding slot (222) that arc fixture block two (225) be driven to slide in opposition, realizes to being located at
The clamping of the long-acting graphite of flexibility in sliding slot (222)；
7, finally by bolt two (151) and the nut matched with bolt two (151) two (152) by box body (12) and box cover
(11) it closes.
Step 4 backfills earthing or grounding means using soft fine earth, backfills thickness in 200mm or more, and will be thin by tool
Soil is consolidated；
Step 5, measurement of Grounding Resistance, when ground resistance meets the requirement of grounding resistance, backfill native soil to Wind turbines
Foundation pit it is equal with surrounding ground level.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910462670.8A CN110165433B (en) | 2019-05-30 | 2019-05-30 | Flexible long-acting graphite grounding device for wind turbine generator and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910462670.8A CN110165433B (en) | 2019-05-30 | 2019-05-30 | Flexible long-acting graphite grounding device for wind turbine generator and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN110165433A true CN110165433A (en) | 2019-08-23 |
| CN110165433B CN110165433B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910462670.8A Active CN110165433B (en) | 2019-05-30 | 2019-05-30 | Flexible long-acting graphite grounding device for wind turbine generator and construction method thereof |
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| CN112467469A (en) * | 2020-11-05 | 2021-03-09 | 河南科技学院 | Protection device for communication cable |
| CN113328319A (en) * | 2021-06-06 | 2021-08-31 | 中国长江电力股份有限公司 | On-site machining equipment for collector ring of hydraulic turbine unit and using method |
| CN113839230A (en) * | 2021-10-18 | 2021-12-24 | 云南超越建设工程有限公司 | Graphite lightning protection earthing device for lightning protection earthing |
| CN114300904A (en) * | 2021-12-10 | 2022-04-08 | 国网江西省电力有限公司电力科学研究院 | Anti-corrosion connecting device for flexible graphite composite grounding material and using method thereof |
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| CN114300904B (en) * | 2021-12-10 | 2023-12-26 | 国网江西省电力有限公司电力科学研究院 | Corrosion-resistant connecting device for flexible graphite composite grounding material and use method thereof |
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Address after: 236800 one incubator building of standardized workshop at the intersection of Zhangliang road and Hehuan Road, Bowu modern industrial park, Bozhou City, Anhui Province Patentee after: Anhui Huaxi Technology Co.,Ltd. Address before: 236800 one standardized factory incubation building at the intersection of Zhangliang road and Hehuan Road, Bowu modern industrial park, Qiaocheng District, Bozhou City, Anhui Province Patentee before: ANHUI HUAXI ELECTRIC POWER TECHNOLOGY Co.,Ltd. |