CN203529784U - Wind power maintenance machine - Google Patents

Wind power maintenance machine Download PDF

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Publication number
CN203529784U
CN203529784U CN201320610768.1U CN201320610768U CN203529784U CN 203529784 U CN203529784 U CN 203529784U CN 201320610768 U CN201320610768 U CN 201320610768U CN 203529784 U CN203529784 U CN 203529784U
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CN
China
Prior art keywords
maintenance machine
frame
wind
wind power
wireline winch
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Active
Application number
CN201320610768.1U
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Chinese (zh)
Inventor
娄近水
张才盛
王亚斌
王浩杰
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Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd
Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
Original Assignee
Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd
Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd, Beijing Goldwind Science and Creation Windpower Equipment Co Ltd, Huadian Zhengzhou Machinery Design and Research Institute Co Ltd filed Critical Zhengzhou Kerun Mechanical & Electron Engineering Co Ltd
Priority to CN201320610768.1U priority Critical patent/CN203529784U/en
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Publication of CN203529784U publication Critical patent/CN203529784U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The utility model discloses a wind power maintenance machine, and specifically relates to novel hoisting equipment, namely the wind power maintenance machine which is not limited by installation height, total weight and hoisting environment. The wind power maintenance machine solves the technical problem that existing wind power hoisting and maintaining equipment is high in expense, long in period, high in demand on environment of an installation field and poor in safety. The wind power maintenance machine disclosed by the utility model comprises a self-lifting system, a guiding and holding device, a portal and a hoisting device, wherein the self-lifting system hoists the equipment by taking a redirected pulley on a supporting device inside a cabin of a fan as a support point; the guiding and holding device is used for enabling the equipment to be clung to a tower drum of the fan to move up and down during the self-lifting process, and holding a work platform and the tower drum of the fan when the equipment reaches the upper dead center; a bracket arranged at the front part in the cabin is connected with the work platform by a pull rope; the hoisting device is arranged at the upper part of the portal. The wind power maintenance machine disclosed by the utility model is simple in structure and convenient to use in a special field for many times, so that a heavy crane is avoided or less used. The wind power maintenance machine is high in efficiency, and the production and maintenance cost and time of a wind power field can be reduced.

Description

A kind of wind-powered electricity generation maintenance machine
Technical field
The utility model relates to a kind of wind-powered electricity generation maintenance equipment, is specifically related to a kind of wind-powered electricity generation maintenance machine.
Background technology
Along with the fast development of Wind Power Generation Industry, the wind-powered electricity generation unit of place in operation progresses into the operating maintenance phase in advance, and long-term use causes many parts need to change maintenance.Traditional replacing method is to adopt large lifting equipment to carry out, and restricted by setting height(from bottom) and lifting total weight, and the cycle is long, expense is high, is necessary to develop special-purpose lifting maintenance equipment.
Summary of the invention
The technical problems to be solved in the utility model is existing wind-powered electricity generation lifting and repair apparatus expense is high, the cycle long, the defect of, poor stability high to fabricating yard environmental requirement, and a kind of Novel hanging equipment wind-powered electricity generation maintenance machine that is not subject to setting height(from bottom) and complete machine weight and lifts environmental constraints is provided.
For achieving the above object, the utility model adopts following technical proposals: a kind of wind-powered electricity generation maintenance machine, comprise the system that certainly rises that the changed course pulley by take on the bracing or strutting arrangement of fan engine room inside is sling equipment self as the strong point, equipment self is in rising process, equipment self is close to blower fan tower barrel and moves up and down and arrive guiding and the enclasp device that after top dead centre is held workplatform and blower fan tower barrel tightly successively, the anterior support being arranged in cabin is connected with drag-line with workplatform simultaneously, also comprise the door frame being arranged in frame and the jack up unit that is arranged on door frame top.
Described door frame is connected with changing-breadth system, and door frame is luffing door frame.
Described guiding and enclasp device comprise frame, also comprise that being fixed on embracing in frame encircles and guide piece, and the described ring of embracing is fixedly connected with guide piece; Described guide piece divides two-layer, and every layer has two pairs at least, and on a pair of fixed cross beam that is fixed on frame, another is to being fixed on the translation crossbeam of frame; Described translation crossbeam is promoted by the translation oil cylinder of at least two; Described guide piece comprises guiding oil cylinder and guide wheel mechanism, and guiding oil cylinder promotes the track adjusting wheel motion of guide wheel mechanism, and track adjusting wheel is attached in the gabarit of blower fan tower barrel; The described ring of embracing comprises that elasticity embraces ring and elasticity is embraced and encircled supportthe rigidity of effect is embraced ring.
Described jack up unit comprises suspender frame and is arranged on the top pulleys group on door frame, also comprise the running block with top pulleys group transmission link, connect the steel cable winding system of top pulleys group and running block and the hydraulic wireline winch that drives steel cable winding system elevator, described running block is arranged in suspender frame; Described hydraulic wireline winch is driven by the electric and hydraulic efficiency pressure system being arranged on the crossbeam of special hanger; Described steel cable winding system comprises left steel cable winding system and right steel cable winding system; Described hydraulic wireline winch comprises left hydraulic wireline winch and right hydraulic wireline winch; Between described left steel cable winding system and right steel cable winding system, be provided with synchronous device.
Described synchronous device comprises fixed frame and the left side wire rope fixing device and the right side wire rope fixing device that are connected with left and right hydraulic wireline winch hoisting rope winding system end, left and right hydraulic wireline winch adopts same solenoid directional control valve centralized oil supply, axis of guide motion in the middle of hydraulic wireline winch hoisting rope winding system drives, the middle axis of guide drives the flexible of dish spring compression set by baffle plate, the flexible change solenoid directional control valve central lubricating system hydraulic oil of dish spring compression set, to the little side flow of pressure, reaches the stress equalization of synchronous device both sides; On the described middle axis of guide, be provided with axially directed sliding sleeve.
Described bracing or strutting arrangement comprises two four-bar linkages, left four-bar linkage and right four-bar linkage, and the fixed link of two described four-bar linkages is to be arranged on the base on underframe of wind driven generator and to be arranged on the crossbeam on base; The left support that is arranged on chassis left side is all connected and forms the portable bar of left four-bar linkage with upper left quarter pull bar with the lower left quarter pull bar that is arranged on base right side; The right support that is arranged on base right side is all connected and forms the portable bar of right four-bar linkage with upper right quarter pull bar with the right lower quadrant pull bar that is arranged on chassis left side.
The junction of the junction of described left support and upper left quarter pull bar and right support and upper right quarter pull bar is provided with assembly pulley.
The utility model adopts specialized equipment is fixed on to wind-powered electricity generation set mounting platform below, utilize blower fan tower barrel oneself height to carry out lifting operation, with other ground water surface hoisting crane comparison, broken away from the restriction that is subject to lifting height of crane, meanwhile, this specialized equipment not be used in the ground water surface load is installed, can not be subject to the restriction of ground aquatic environment, substantially keep former ambient condition, reduced the destruction to environment, greatly improved applicability, reliability, the safety of installing and safeguard rich group of motors; Because the present invention has adopted without tower body structure, without complicated ground walking device, thereby simple in structure, manufacture, cost of installation is low, being convenient to repeatedly special show uses, for wind energy turbine set, safeguard and can avoid or reduce use goliath, efficiency is high, can reduce wind energy turbine set production maintenance cost and time; The utility model also can be used for maintenance and the installation of the equipment of other similar blower fan tower barrel structure.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the present invention.
Fig. 2 is the right TV structure schematic diagram of the present invention.
Fig. 3 is the structural representation under installing condition.
Fig. 4 is the main TV structure schematic diagram of jack up unit.
Fig. 5 is the left TV structure schematic diagram of jack up unit.
Fig. 6 is the steel cable winding system structural representation of jack up unit.
Fig. 7 is the inner structure schematic diagram of synchronous device.
Fig. 8 is the structural representation of synchronous device.
Fig. 9 is the hydraulic schematic diagram of synchronous device.
Figure 10 is the use status architecture schematic diagram of synchronous device.
Figure 11 is guiding and enclasp device plan structure schematic diagram.
Figure 12 is that guiding and enclasp device are used the main TV structure schematic diagram of state.
Figure 13 is the structural representation of bracing or strutting arrangement.
Figure 14 is the use status architecture schematic diagram of bracing or strutting arrangement.
The specific embodiment
As shown in Figure 1, the present invention includes the system that certainly rises 1 that the changed course pulley by take on the bracing or strutting arrangement 6 of fan engine room inside is sling equipment self as the strong point, equipment self is in rising process, equipment self is close to blower fan tower barrel and moves up and down and arrive guiding and the enclasp device 8 that after top dead centre is held workplatform and blower fan tower barrel tightly successively, the anterior support 16 being arranged in cabin is connected with drag-line with workplatform simultaneously, also comprises the door frame 2 being arranged in frame 10 and the jack up unit 4 that is arranged on door frame 2 tops.
Described door frame 2 is connected with changing-breadth system 3, and door frame 2 is luffing door frame.
Described guiding and enclasp device 8 comprise frame 10, also comprise armful ring 88 and the guide piece 89 that are fixed in frame 10, and the described ring 88 of embracing is fixedly connected with guide piece 89; Described guide piece 89 minutes is two-layer, and every layer has two pairs at least, and on a pair of fixed cross beam 11 that is fixed on frame 10, another is to being fixed on the translation crossbeam 12 of frame 10; Described translation crossbeam 12 is promoted by the translation oil cylinder 85 of at least two; Described guide piece 89 comprises guiding oil cylinder 891 and guide wheel mechanism 892, and guiding oil cylinder 891 promotes the track adjusting wheel motion of guide wheel mechanism 892, and track adjusting wheel is attached in the gabarit of blower fan tower barrel; The described ring 88 of embracing comprises that elasticity embraces ring 884 and elasticity is embraced to 884, ring supportthe rigidity of effect is embraced ring 883.When wind-powered electricity generation maintenance machine rises, guiding oil cylinder 891 is released the track adjusting wheel of guide wheel mechanism 892, tightly be posted on the both sides of blower fan tower barrel, blower fan tower barrel is truncated cone-shaped structure, and in figure, roundlet is equipment tower cylinder gabarit 21 when target location, and great circle is tower cylinder bottom surface gabarit 22, vertical-lift along with equipment, blower fan tower barrel progressively diminishes, and translation oil cylinder 85 is pushing away translation crossbeam 12 and progressively moving forward, and has guaranteed that the track adjusting wheel of guide wheel mechanism 892 is tightly posted on the both sides of blower fan tower barrel all the time.The design of upper and lower two-layer guide wheel, and the existence of frame 10 height, formed power and the arm of force, and certainly rising the unbalanced moment that in process, equipment centre-of gravity shift causes will be born by the track adjusting wheel of guide wheel mechanism 892.When equipment arrives target location, guiding oil cylinder 891 is regained the track adjusting wheel of guide wheel mechanism 892, translation oil cylinder 85 is pushing away translation crossbeam 86 and is progressively moving forward, and in Figure 11, B is the translation distance of translation crossbeam 86, and elasticity is embraced ring 884 reaches along with translation crossbeam 12 and is progressively adjacent to.When wind-powered electricity generation maintenance machine declines, translation crossbeam 12 is return at translation oil cylinder 85 effect ends, and guiding oil cylinder 891 is released the track adjusting wheel of guide wheel mechanism 892, and elasticity is embraced ring 884 and left tower cylinder, and the track adjusting wheel of guide wheel mechanism 892 leans against the both sides of blower fan tower barrel.Along with the vertical decline of equipment, blower fan tower barrel progressively becomes greatly, and translation crossbeam 12 is return gradually under the effect of translation oil cylinder 85, guarantees that the track adjusting wheel of guide wheel mechanism 892 is tightly posted on the both sides of blower fan tower barrel all the time.The design of upper and lower two-layer guide wheel, and the existence of frame 10 height, formed power and the arm of force, forms load-carrying capacity, and the unbalanced moment that in decline process, equipment centre-of gravity shift causes is born by the track adjusting wheel of guide wheel mechanism 892.
Described jack up unit 4 comprises suspender frame 46 and is arranged on the top pulleys group 41 on door frame 2, also comprise the running block 44 with top pulleys group 41 transmission links, connect top pulleys group 41 and the steel cable winding system 42 of running block 44 and the hydraulic wireline winch 45 that drives steel cable winding system 42 elevators, described running block 44 is arranged in suspender frame 46; Described hydraulic wireline winch 45 is driven by the electric and hydraulic efficiency pressure system 43 being arranged on the crossbeam of special hanger; Described steel cable winding system 42 comprises left steel cable winding system 421 and right steel cable winding system 422; Described hydraulic wireline winch 45 comprises left hydraulic wireline winch 451 and right hydraulic wireline winch 452; Between described left steel cable winding system 421 and right steel cable winding system 422, be provided with synchronous device 5.As shown in Figure 4, this jack up unit 1 is arranged on door frame 2 by top pulleys group 41, by independently electric and the hydraulic efficiency pressure system 43 left hydraulic wireline winchs 451 of driving and 452 actions of right hydraulic wireline winch, left hydraulic wireline winch 451 and right hydraulic wireline winch 452 keep synchronization action under the effect of synchronous device 5, the winding system forming through top pulleys group 41, steel cable winding system 42 and running block 44, drives the ascending, descending operation of special hanger.
Described synchronous device 5 comprise fixed frame 57 and with a left side, left side wire rope fixing device 51 and right side wire rope fixing device 56 that right hydraulic wireline winch hoisting rope winding system 52 ends connect, left, right hydraulic wireline winch adopts same solenoid directional control valve centralized oil supply, the axis of guide 52 motions in the middle of hydraulic wireline winch hoisting rope winding system 42 drives, the middle axis of guide 52 drives the flexible of dish spring compression set 54 by baffle plate 53, the flexible change solenoid directional control valve central lubricating system hydraulic oil of dish spring compression set 54 is to the little side flow of pressure, reach the stress equalization of synchronous device both sides, on the described middle axis of guide 52, be provided with axially directed sliding sleeve 55.During work, as shown in figure 10, the fixed frame 57 of this synchronous device is welded on same foundation frame 50 with left hydraulic wireline winch 451 and right hydraulic wireline winch 452.This mechanical synchronizer is arranged on the connection end of two hydraulic wireline winch hoisting rope winding systems, suppose to reel when too fast when left hydraulic wireline winch 451, the middle axis of guide 52 will move to the left, the resistance that compact disc spring compression set 54 produces to the right, cause left side lineoutofservice signal pull to increase, increase along with dish spring amount of compression, resistance increases thereupon, when left side lineoutofservice signal pull increases to a certain degree, as shown in Figure 9, because two hydraulic wireline winchs adopt same solenoid directional control valve 453 centralized oil supplies, A is hydraulic efficiency power unit, both charge oil pressures are same in theory, after this state of equilibrium is broken, left hydraulic wireline winch 451 hydraulic system pressures increase, according to the feature of hydraulic oil self, cause liquid to flow to right hydraulic wireline winch 452 right atrial pressures compared with small flow, left hydraulic wireline winch 451 hydraulic system pressures will reduce, until two hydraulic wireline winch hydraulic efficiency pressure system charge oil pressures are balanced, thereby reach left, the object of right both sides lineoutofservice signal pull equilibrium, overcome because a side draw is crossed senior general's Wound steel rope too much situation of reeling, realizing winch elevator is wound around synchronous.Because combination disk spring amount of compression is very little, just can produce larger resistance, buffering damping capaicty is strong, and this dynamic mechanical synchronization technology is easy to guarantee the synchronous coiling performance of two hydraulic wireline winchs.
Described bracing or strutting arrangement 7 comprises two four-bar linkages, left four-bar linkage and right four-bar linkage, and the fixed link of two described four-bar linkages is to be arranged on the base 75 on underframe of wind driven generator 77 and to be arranged on the crossbeam 76 on base 75; The left support 711 that is arranged on base 75 left sides is all connected and forms the portable bar of left four-bar linkage with upper left quarter pull bar 713 with the lower left quarter pull bar 714 that is arranged on base 75 right sides; The right support 721 that is arranged on base 75 right sides is all connected and forms the portable bar of right four-bar linkage with upper right quarter pull bar 723 with the right lower quadrant pull bar 724 that is arranged on base 75 left sides; The junction of the junction of described left support 711 and upper left quarter pull bar 713 and right support 721 and upper right quarter pull bar 723 is provided with assembly pulley 72.This bracing or strutting arrangement 7 adopts burst assembling, is arranged on blower fan crossbeam.Before assembling, utilize the small lifting equipment that blower fan afterbody carries that each member of wind-powered electricity generation unit special tooling 7 is winched in cabin 78, the 78 interior assembled formations in cabin, in Fig. 2, C is tower cylinder line of centers, D is upper and lower engine room cover demarcation line.Concrete installation steps are as follows: first base 75 is arranged on the platform of underframe of wind driven generator; Lower left quarter pull bar 714, right lower quadrant pull bar 724 and crossbeam 76 are installed on base 75; Left support 711, right support 712 and assembly pulley 72 are installed in upright position again, after installation, with drag-line, assist temporary fixed support 71, adopt the temporary fixed left support 711 of drag-line and right support 712, can conveniently adjust angle, the position of left support 711 and right support 712, flexibly safety; Upper left quarter pull bar 713 is installed on lower left quarter pull bar 714, upper right quarter pull bar 723 is installed on right lower quadrant pull bar 724; Lower left quarter pull bar 714 and upper left quarter pull bar 713, right lower quadrant pull bar 724 is slowly decontroled preventer guy after being connected with upper right quarter pull bar 723, frock installation in position.
The utility model is placed in basis, ground by equipment workplatform before installing, and by ground imported unit, makes equipment near blower fan tower barrel; During installation, the bracing or strutting arrangement 7 being fixed in blower fan frame will be walked around from the steel rope that rises system 1, driving is from rising system 1 elevator, sling equipment self to blower fan main frame under predetermined altitude, by guiding enclasp device 8, successively workplatform 78 and blower fan tower barrel are held tightly.Front carriage is connected with workplatform 78 use drag-lines simultaneously, reaches equipment working state.
In equipment when work,, by being contained in, jack up unit 4 liftings on door frame 2 tops need to install or the blower fan components module of dismounting, thereby realize moving up and down of article between ground and blower fan height; When article are lifted to after the height needing, by luffing device 3 telescopic oil cylinders drive door frames 2 around and workplatform 78 between hinge rotate, drive the article that hang to move in horizontal extent, thereby realize hung blower fan components module is in place in correct position dismounting; Operation is complete, when specialized equipment need to be pulled down, adjusts luffing device 3 oil cylinders and adjusts door frame 2 positions, and reversing sense drives from rising system 1 elevator, and Special crane is drop to ground from high-altitude, from blower fan main frame pulley, puts down steel rope, packs up; Be used to complete rear transition, continue next time to use.

Claims (7)

1. a wind-powered electricity generation maintenance machine, it is characterized in that: comprise the system that certainly rises (1) that the changed course pulley by take on the bracing or strutting arrangement (7) of fan engine room inside is sling equipment self as the strong point, equipment self is in rising process, equipment self is close to blower fan tower barrel and moves up and down and arrive guiding and the enclasp device (8) that after top dead centre is held workplatform and blower fan tower barrel tightly successively, the anterior support (16) being arranged in cabin is connected with drag-line with workplatform simultaneously, also comprise the door frame (2) being arranged in frame (10) and be arranged on the jack up unit (4) on door frame (2) top.
2. wind-powered electricity generation maintenance machine according to claim 1, is characterized in that: described door frame (2) is connected with changing-breadth system (3), and door frame (2) is luffing door frame.
3. wind-powered electricity generation maintenance machine according to claim 1, it is characterized in that: described guiding and enclasp device (8) comprise frame (10), also comprise that being fixed on embracing in frame (10) encircles (88) and guide piece (89), the described ring (88) of embracing is fixedly connected with guide piece (89); Described guide piece (89) divides two-layer, and every layer has two pairs at least, and a pair of fixed cross beam (11) that is fixed on frame (10) is gone up, and another is to being fixed on the translation crossbeam (12) of frame (10); Described translation crossbeam (12) is promoted by the translation oil cylinder (85) of at least two; Described guide piece (89) comprises guiding oil cylinder (891) and guide wheel mechanism (892), and guiding oil cylinder (891) promotes the track adjusting wheel motion of guide wheel mechanism (892), and track adjusting wheel is attached in the gabarit of blower fan tower barrel; The described ring (88) of embracing comprises that elasticity embraces ring (884) and elasticity is embraced to ring (884) supportthe rigidity of effect is embraced ring (883).
4. wind-powered electricity generation maintenance machine according to claim 1, it is characterized in that: described jack up unit (4) comprises suspender frame (46) and is arranged on the top pulleys group (41) on door frame (2), also comprise the running block (44) with top pulleys group (41) transmission link, connect top pulleys group (41) and the steel cable winding system (42) of running block (44) and the hydraulic wireline winch (45) that drives steel cable winding system (42) elevator, described running block (44) is arranged in suspender frame (46); Described hydraulic wireline winch (45) is driven by the electric and hydraulic efficiency pressure system (43) being arranged on the crossbeam of special hanger; Described steel cable winding system (42) comprises left steel cable winding system (421) and right steel cable winding system (422); Described hydraulic wireline winch (45) comprises left hydraulic wireline winch (451) and right hydraulic wireline winch (452); Between described left steel cable winding system (421) and right steel cable winding system (422), be provided with synchronous device (5).
5. wind-powered electricity generation maintenance machine according to claim 4, it is characterized in that: described synchronous device (5) comprise fixed frame (57) and with a left side, left side wire rope fixing device (51) and right side wire rope fixing device (56) that right hydraulic wireline winch hoisting rope winding system (52) end connects, left, right hydraulic wireline winch adopts same solenoid directional control valve centralized oil supply, the axis of guide (52) motion in the middle of hydraulic wireline winch hoisting rope winding system (42) drives, the middle axis of guide (52) drives the flexible of dish spring compression set (54) by baffle plate (53), the flexible change solenoid directional control valve central lubricating system hydraulic oil of dish spring compression set (54) is to the little side flow of pressure, reach the stress equalization of synchronous device both sides, on the described middle axis of guide (52), be provided with axially directed sliding sleeve (55).
6. wind-powered electricity generation maintenance machine according to claim 1, it is characterized in that: described bracing or strutting arrangement (6) comprises two four-bar linkages, left four-bar linkage and right four-bar linkage, the fixed link of two described four-bar linkages is for to be arranged on the base (75) on underframe of wind driven generator (77) and to be arranged on the crossbeam (76) on base (75); The left support (711) that is arranged on base (75) left side is all connected and forms the portable bar of left four-bar linkage with upper left quarter pull bar (713) with the lower left quarter pull bar (714) that is arranged on base (75) right side; The right support (721) that is arranged on base (75) right side is all connected and forms the portable bar of right four-bar linkage with upper right quarter pull bar (723) with the right lower quadrant pull bar (724) that is arranged on base (75) left side.
7. wind-powered electricity generation maintenance machine according to claim 6, is characterized in that: the junction of the junction of described left support (711) and upper left quarter pull bar (713) and right support (721) and upper right quarter pull bar (723) is provided with assembly pulley (72).
CN201320610768.1U 2013-09-30 2013-09-30 Wind power maintenance machine Active CN203529784U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320610768.1U CN203529784U (en) 2013-09-30 2013-09-30 Wind power maintenance machine

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Application Number Priority Date Filing Date Title
CN201320610768.1U CN203529784U (en) 2013-09-30 2013-09-30 Wind power maintenance machine

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Publication Number Publication Date
CN203529784U true CN203529784U (en) 2014-04-09

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Application Number Title Priority Date Filing Date
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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241435A (en) * 2015-11-02 2016-01-13 三一汽车起重机械有限公司 Laser positioning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241435A (en) * 2015-11-02 2016-01-13 三一汽车起重机械有限公司 Laser positioning device
CN105241435B (en) * 2015-11-02 2018-02-06 三一汽车起重机械有限公司 Laser locating apparatus

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