CN102990488A - Wind turbine blade end face grinding machine - Google Patents
Wind turbine blade end face grinding machine Download PDFInfo
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- CN102990488A CN102990488A CN2012105380629A CN201210538062A CN102990488A CN 102990488 A CN102990488 A CN 102990488A CN 2012105380629 A CN2012105380629 A CN 2012105380629A CN 201210538062 A CN201210538062 A CN 201210538062A CN 102990488 A CN102990488 A CN 102990488A
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Abstract
The invention belongs to the technical field of machining and relates to a wind turbine blade end face grinding machine. The problem that the end face flatness of a large-size blade cannot be guaranteed in the prior art is solved. In order to solve the problem in the prior art, according to the technical scheme, the wind turbine blade end face grinding machine comprises a main engine, a control cabinet and a hydraulic station, wherein the main engine comprises a motor, a reducer, a rotating system assembly and a grinding system assembly; the wind turbine blade end face grinding machine also comprises a supporting fixing frame arranged at one end of the main engine; the supporting fixing frame is arranged in a blade propeller root; a plurality of hydraulic supporting assemblies are arranged between the supporting fixing frame and an inner wall of the blade propeller root; each hydraulic supporting assembly comprises a hydraulic cylinder and a movable supporting leg which is arranged at the outer end of a piston of the hydraulic cylinder; the hydraulic cylinder is connected with the hydraulic station; a pair of rotating arms are symmetrically arranged in the radial direction of the rotating system component relative to the rotating axis; and the end of each rotating arms are respectively provided with a grinding wheel and a balancing weight. According to the wind turbine blade end face grinding machine, the design requirements of the blade end face flatness can be completely met.
Description
Technical field
The invention belongs to the Machining Technology field, relate to a kind of wind wheel blade end face grinding machine.
Background technology
Continuous upgrading along with the wind-power electricity generation acc power, the appearance and size of wind wheel blade constantly increases, blade root as MW class generator wind wheel blade assembly foundation, its form tolerance---the form tolerance of end face especially is day by day obvious on the impact of the stable operation of assembly precision, main frame bending moment performance and even the whole drive mechanism of blade of wind-driven generator and wheel hub.Therefore, form tolerance, the especially deviations from planarity of blade blade root end face become one of technological difficulties in the manufacturing of wind-power electricity generation equipment gradually.
Because the length of blade of MW class generator is more than 50 meters, the blade root diameter adopts conventional grinding machine can't satisfy its physical dimension requirement more than 2 meters.Simultaneously because the characteristics of curing deformation and the impact of mould position error behind the composite material forming, its flatness that the structural design of traditional blade blade root pre-embedded bolt cover also is difficult to guarantee blade blade root end face at 0.2mm with interior designing requirement.
Summary of the invention
The purpose of this invention is to provide a kind of wind wheel blade end face grinding machine, the problem that can't guarantee large-scale blades end face flatness that exists to solve prior art.
For solving the problem of prior art, the technical solution adopted in the present invention is: a kind of wind wheel blade end face grinding machine, comprise main frame, switch board and Hydraulic Station, described main frame comprises motor, reductor, rotary system assembly and grinding system assembly, described motor comprises main motor and auxiliary-motor, described main motor is connected with reductor, reductor is connected with the rotary system assembly, the rotary system assembly is connected with the grinding system assembly, its special character is: also comprise the supporting and mounting bracket that is arranged at main frame one end, described supporting and mounting bracket is arranged in the blade blade root, be provided with some hydraulic pressure support assemblies between supporting and mounting bracket and the blade blade root inwall, described hydraulic pressure support assembly comprises hydraulic cylinder and is arranged at the movable supporting leg of the piston outer end of hydraulic cylinder, described hydraulic cylinder is connected with Hydraulic Station, the footpath of described rotary system assembly upwards is symmetrically arranged with a pair of turning arm with respect to axis of rotation, and the end of two turning arms is respectively equipped with emery wheel and balancing weight, and described auxiliary-motor is connected with emery wheel.
Above-mentioned hydraulic pressure support assembly is six, minute two groups of settings, on per three cross sections that are arranged at fixed axis and the angle between adjacent two hydraulic pressure support assemblies be 120 degree.
Above-mentioned hydraulic cylinder is provided with energy storage equipment.
Above-mentioned supporting and mounting bracket is provided with some movable positioning plates near an end of main frame, offers chute on the described movable positioning plate, is provided with set bolt in the chute.
The present invention has following advantage and effect with respect to prior art:
1. the present invention is simple in structure, and is easy for operation, and the flatness of grinding rear blade blade root end face can reach below 0.15, satisfies the designing requirement of vane end faces flatness fully.
2. because wind wheel blade belongs to huge object, and running fix is all very difficult, therefore, design concept of the present invention is, equipment is walked with blade, and both where blade was deposited, and where milling drum just works.Adopt the supporting and mounting bracket structure, the present invention is fixed in grinding the blade blade root inner chamber, do not take up space, need not special-purpose place.
3. this equipment has the centering of adjusting function, guarantees that axis of runner blade is vertical with vane end faces;
4. fixedly self-locking and safe grinding function are arranged, guarantee production safety and device security.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Wherein, 1-switch board, 2-Hydraulic Station, 3-reductor, 4-rotary system assembly, 5-master's motor, 6-auxiliary-motor, 7-supporting and mounting bracket, 8-blade blade root, 9-turning arm, 10-emery wheel, 11-balancing weight, 12-hydraulic cylinder, 13-movable supporting leg, 14-movable positioning plate, 15-blade bolt cover.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is elaborated.
With reference to Fig. 1, a kind of wind wheel blade end face grinding machine, comprise main frame, switch board 1 and Hydraulic Station 2, described main frame comprises motor, reductor 3, rotary system assembly 4 and grinding system assembly, described motor comprises main motor 5 and auxiliary-motor 6, described main motor 5 is connected with reductor 3, reductor 3 is connected with rotary system assembly 4, rotary system assembly 4 is connected with the grinding system assembly, also comprise the supporting and mounting bracket 7 that is arranged at main frame one end, described supporting and mounting bracket 7 is arranged in the blade blade root 8, be provided with some hydraulic pressure support assemblies between supporting and mounting bracket 7 and blade blade root 8 inwalls, described hydraulic pressure support assembly comprises hydraulic cylinder 12 and is arranged at the movable supporting leg 13 of the piston outer end of hydraulic cylinder, described hydraulic cylinder is connected with Hydraulic Station 2, the footpath of described rotary system assembly 4 upwards is respectively equipped with grinding wheel component and balancing weight 11 with respect to the end that axis of rotation is symmetrically arranged with 9, two turning arms 9 of a pair of turning arm, and described grinding wheel component comprises the emery wheel 10 that auxiliary-motor 6 links to each other with main shaft with auxiliary-motor 6.Above-mentioned hydraulic pressure support assembly is six, 3 every group, and minute two groups of settings, every group uniform is arranged on the cross-sectional periphery of blade blade root 8 and the angle between adjacent two hydraulic pressure support assemblies is 120 degree.Above-mentioned hydraulic cylinder 12 is provided with energy storage equipment.
Above-mentioned supporting and mounting bracket is provided with some movable positioning plates 14 near an end of main frame, offers chute on the described movable positioning plate, is provided with set bolt in the chute.
Operation principle and process:
Because wind wheel blade belongs to huge object, running fix is all very difficult, and therefore, the design concept of wind wheel blade end face grinding machine is, equipment is walked with blade, and both where blade was deposited, and where milling drum just works.Milling drum is fixed in the blade blade root inner chamber when grinding, does not take up space, and need not special-purpose place.
End face grinding machine is comprised of main frame (mechanical part), switch board 1 and Hydraulic Station 2 three parts.The working motion of end face grinding machine is divided into three parts, and the firstth, the piston that Hydraulic Station 2 drives six secondary hydraulic cylinders 12 is done the fixing and dismounting of stretching motion finishing equipment in blade blade root 8; The secondth, main motor 5(1.5KW) rotatablely moving by reductor 3 gear driven turning arms 9; The 3rd is auxiliary-motor 6(1KW) drive emery wheel 10 rotations and finish grinding motion, the feeding of emery wheel 10 and retreating by the manual operation handwheel is finished.
Operation principle and process: pass through mobile system, equipment for grinding moved only be ground in the blade slurry root inner chamber, controlling electric device control system, hydraulic work system, be fixed in the slurry root inner chamber, starting rotary system---starting grinding system---operation grinding and feeding system realizes the accurate grinding of slurry butt face.
End face grinding machine installs and fixes the order explanation
1, blade is placed requirement
Need the blade of cross grinding when placing, one of them blade bolt should be overlapped the top that 15 positions are placed on blade blade root circle axis perpendicular to the ground substantially.
2, equipment installation steps
A, unclamp the set bolt on all movable positioning plates 14, three place's movable positioning plates 14 are stretched out, and with the threaded location, use again set bolt fastening.
B, equipment body is sling by hoisting tool special with crane or fork truck, and supporting and mounting bracket 7 parts are slowly moved in the blade blade root 8, until movable positioning plate 14 locating surfaces are attached to blade blade root bolt sleeve end face, simultaneously the fixing hole of movable positioning plate 14 is aimed at the endoporus of blade bolt cover 15, and with the location set bolt equipment is fastened on blade blade root 8 end faces, then unclamp and lay down crane or fork truck and lifting device.
Power line and fluid pressure line between c, connection switch board and equipment body.Start power supply; Start Hydraulic Station; The unlatching hydraulic cylinder piston stretches out button is fixed in the blade blade root 8 device support fixed mount 7.If the hydraulic cylinder piston stroke is inadequate, the adjustment spiral shell that can manually adjust movable supporting leg 13 front ends emits, and makes its six movable supporting legs 13 and blade blade root 8 inwall close contacts.(only when using equipment for the first time, adjusting)
D, press clutch handle, turning arm 9 and main frame are thrown off.Whether substantially manual rotation turning arm 9 checks uniform three places of emery wheel 10 end faces and vane end faces distance impartial (gap error gets final product less than 0.5mm), if unequal can adjust to equalization by the adjustment bolt till.
E, unclamp the location set bolt, the manual rotation turning arm 9 again, and whether verification emery wheel 10 end faces and vane end faces be substantially impartial in above-mentioned three places distance, if unequally adjust again.
F, unload and hang threaded, unclamp set bolt, movable positioning plate 14 is retracted, with set bolt movable positioning plate 14 is compressed again.
G, pull lower clutch handle, clutch closes.
H, install safety guard net (prevent from flying out after emery wheel from pulverizing hurt sb.'s feelings or decrease thing).
3, equipment grinding action step
A, press auxiliary-motor 6 and release the button and start emery wheel 10 rotations.
B, manually adjust emery wheel 10 and blade blade root 8 end face distances by handwheel, and adjust emery wheel 10 grinding bites, each depth of cut is less than 0.2mm.
C, adjust and press main motor 5 after the emery wheel 10 grinding bites and release the button, turning arm 9 begins to rotate whole grinding and begins.Can adjust turning arm according to actual grinding situation and revolve 9 rotary speeds, should be by gradually fast slowly.
Behind d, turning arm 9 every rotary grinding two to three circles, adjust emery wheel 10 grinding and feeding bites by the manual trace of handwheel again, have till the grinding sparks until all blade bolts overlap 15 end faces.
4, the equipment grinding stops step
A, at first press main motor 5 X buttons, turning arm 9 is stopped the rotation.
B, next press auxiliary-motor 6 X buttons, emery wheel 10 is stopped the rotation.
C, after stopping the rotation, emery wheel 10 makes itself and blade blade root 8 end face distances maximums by handwheel manual retraction emery wheel 10.
5, detaching equipment
Equipment is slightly firmly sling by hoisting tool special with crane or fork truck, pressed hydraulic cylinder retraction button, behind hydraulic cylinder 12 returns, the closing device general supply.Then slowly equipment is shifted out blade blade root 8 and be placed on the equipment rack.
The present invention is before the grinding vane end faces, three movable positioning plate 14 end faces are close to the ring flange end face of blade blade root 8 on the supporting and mounting bracket 7 of equipment, and equipment is fastened on the end face of blade blade root 8 with set bolt, this moment, the abrasive grinding wheel end face was parallel with blade blade root end face to be ground, then the piston support blade blade root inner chamber of six cover hydraulic cylinders 12 makes equipment be fixed on blade tip.Unclamp movable positioning plate 14 and retraction this moment, can begin grinding.Milled portion adopts the precision lead screw hand feed, and the amount of feeding can be controlled in 0.01mm, and grinding wheel speed is 2800r/min, can guarantee the roughness of grinding face.The flatness of grinding rear blade blade root end face can reach below the 0.15mm, satisfies the designing requirement of vane end faces flatness fully.
The present invention has fixedly self-locking and safe grinding function, guarantees production safety and device security:
1) these equipment six secondary hydraulic cylinders 12 are provided with energy storage equipment, but automatic pressure-maintaining when pressure reaches rated pressure, even hydraulic cylinder 12 also can keep rated pressure more than 1 hour when outage or other fault occur Hydraulic Station, can be fixed by bolts on the blade flange or lay down with assurance equipment, when outage occurs when, available manual pressure release.
2) when the pressure of hydraulic cylinder 12 does not reach rated pressure, rotary system and the grinding system motor of electrical apparatus control system control can't start, when hydraulic cylinder 12 pressure were lower than rated pressure, above motor also quit work automatic cut-off power in grinding.
The present invention has the centering of adjusting function, guarantees that axis of runner blade is vertical with vane end faces:
Wind electricity blade mainly relies on the blade mold locating flange that blade flange dish and blade root loose tool core are fixed together during fabrication, thereby guarantees the vertical of blade flange dish and blade root inner chamber axis.This equipment when mounted, being close to blade flange dish end face with three movable positioning plates 14 on the fixed mount fixes, then use six secondary hydraulic cylinder 12 support blade blade root inner chambers, when grinding, check that with manual rotation some distance of abrasive wheel end face and blade flange dish end face adjusts the depth of parallelism of abrasive wheel end face and ring flange, when distance was unequal, the position that can adjust by adjusting bolt hydraulic cylinder reached distance and equates, thereby guaranteed that grinding rear blade end face is vertical with axis of runner blade.
Claims (4)
1. wind wheel blade end face grinding machine, comprise main frame, switch board (1) and Hydraulic Station (2), described main frame comprises motor, reductor (3), rotary system assembly (4) and grinding system assembly, described motor comprises main motor (5) and auxiliary-motor (6), described main motor (5) is connected with reductor (3), reductor (3) is connected with rotary system assembly (4), rotary system assembly (4) is connected with the grinding system assembly, it is characterized in that: also comprise the supporting and mounting bracket (7) that is arranged at main frame one end, described supporting and mounting bracket (7) is arranged in the blade blade root (8), be provided with some hydraulic pressure support assemblies between supporting and mounting bracket (7) and blade blade root (8) inwall, described hydraulic pressure support assembly comprises hydraulic cylinder (12) and is arranged at the movable supporting leg (13) of the piston outer end of hydraulic cylinder, described hydraulic cylinder is connected with Hydraulic Station (2), the footpath of described rotary system assembly (4) upwards is symmetrically arranged with a pair of turning arm (9) with respect to axis of rotation, the end of two turning arms (9) is respectively equipped with grinding wheel component and balancing weight (11), and described grinding wheel component comprises the emery wheel (10) that auxiliary-motor (6) links to each other with main shaft with auxiliary-motor (6).
2. described wind wheel blade end face grinding machine according to claim 1, it is characterized in that: described hydraulic pressure support assembly is six, every group 3, minute two groups of settings, every group uniform is arranged on the cross-sectional periphery of blade blade root (8) and the angle between adjacent two hydraulic pressure support assemblies is 120 degree.
3. described wind wheel blade end face grinding machine according to claim 2, it is characterized in that: described hydraulic cylinder (12) is provided with energy storage equipment.
4. each described wind wheel blade end face grinding machine according to claim 1 ~ 3, it is characterized in that: described supporting and mounting bracket is provided with some movable positioning plates (14) near an end of main frame, described movable positioning plate offers chute on (14), is provided with set bolt in the chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210538062.9A CN102990488B (en) | 2012-12-13 | 2012-12-13 | Wind turbine blade end face grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210538062.9A CN102990488B (en) | 2012-12-13 | 2012-12-13 | Wind turbine blade end face grinding machine |
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| Publication Number | Publication Date |
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| CN102990488A true CN102990488A (en) | 2013-03-27 |
| CN102990488B CN102990488B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210538062.9A Active CN102990488B (en) | 2012-12-13 | 2012-12-13 | Wind turbine blade end face grinding machine |
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| Country | Link |
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| CN (1) | CN102990488B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317404A (en) * | 2013-06-14 | 2013-09-25 | 平湖市三信机械制造有限公司 | Chemical fiber paper tube finishing machine |
| CN111360622A (en) * | 2020-03-20 | 2020-07-03 | 许昌学院 | Blade processing equipment for wind power generation |
| CN113829131A (en) * | 2021-09-03 | 2021-12-24 | 中国航发哈尔滨东安发动机有限公司 | Turbine disk blade grinding device |
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| CN2341741Y (en) * | 1998-09-30 | 1999-10-06 | 中国石化乌鲁木齐石油化工总厂 | Movable boring machine |
| US20030148713A1 (en) * | 2001-01-18 | 2003-08-07 | Kouji Minami | End face polishing device |
| CN200977610Y (en) * | 2006-10-24 | 2007-11-21 | 天津新港船厂 | Mobile multi-purpose processing machine tool |
| CN101537586A (en) * | 2008-03-17 | 2009-09-23 | 李俊 | Special windmill-generator-blade numerical-control machining center integrating cutting, grinding and two-direction hole milling |
| CN101844319A (en) * | 2010-05-21 | 2010-09-29 | 上海浦东新创机械有限公司 | Large mobile field processing equipment |
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2012
- 2012-12-13 CN CN201210538062.9A patent/CN102990488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2341741Y (en) * | 1998-09-30 | 1999-10-06 | 中国石化乌鲁木齐石油化工总厂 | Movable boring machine |
| US20030148713A1 (en) * | 2001-01-18 | 2003-08-07 | Kouji Minami | End face polishing device |
| CN200977610Y (en) * | 2006-10-24 | 2007-11-21 | 天津新港船厂 | Mobile multi-purpose processing machine tool |
| CN101537586A (en) * | 2008-03-17 | 2009-09-23 | 李俊 | Special windmill-generator-blade numerical-control machining center integrating cutting, grinding and two-direction hole milling |
| CN101844319A (en) * | 2010-05-21 | 2010-09-29 | 上海浦东新创机械有限公司 | Large mobile field processing equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317404A (en) * | 2013-06-14 | 2013-09-25 | 平湖市三信机械制造有限公司 | Chemical fiber paper tube finishing machine |
| CN103317404B (en) * | 2013-06-14 | 2016-03-02 | 浙江三信智能机械科技有限公司 | A kind of chemical fiber paper tube finishing machine |
| CN111360622A (en) * | 2020-03-20 | 2020-07-03 | 许昌学院 | Blade processing equipment for wind power generation |
| CN111360622B (en) * | 2020-03-20 | 2021-04-06 | 许昌学院 | Blade processing equipment for wind power generation |
| CN113829131A (en) * | 2021-09-03 | 2021-12-24 | 中国航发哈尔滨东安发动机有限公司 | Turbine disk blade grinding device |
| CN113829131B (en) * | 2021-09-03 | 2024-03-22 | 中国航发哈尔滨东安发动机有限公司 | Turbine disc blade grinding device |
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| CN102990488B (en) | 2015-05-20 |
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