CN102251938B

CN102251938B - Protection device of wind driven generator blade

Info

Publication number: CN102251938B
Application number: CN2011101895814A
Authority: CN
Inventors: 徐惠; 仝茂祥
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2011-07-07
Filing date: 2011-07-07
Publication date: 2013-04-24
Anticipated expiration: 2031-07-07
Also published as: CN102251938A

Abstract

The invention discloses a protection device of a wind driven generator blade, belonging to an auxiliary device for installing a wind driven generator, wherein the protection device mainly comprises a front support base and a rear support base which are steel structural weld assemblies. The front support base mainly comprises a front bracket I, a connecting plate and a front lifting lug; the front bracket I mainly comprises a longitudinal beam I and left and right brackets I in a shape of inverted T; the middle part of the upper surface of the longitudinal beam I and the inner side of left and right upright rods I are respectively welded with connecting plates; a lower connecting plate and left and right connecting plates are respectively provided with mounting holes and correspondingly connected with a front flange plate of the blade; the rear support base mainly comprises a rear bracket, left and right brackets and a rear lifting lug; the rear bracket mainly comprises a longitudinal beam II and left and right brackets II in a shape of inverted T; the longitudinal beam is welded between the middle parts of left and right upright rods II; left and right brackets provided with cambered grooves are symmetrically mounted on the longitudinal beam; and the tail part of the blade is supported on the bracket of the rear support base, therefore, effective protection for the storage and transportation of the wind driven generator blade is provided.

Description

Blade protection device of wind driven generator

Technical field

The invention belongs to the wind-driven generator installation auxiliary device, especially relate to a kind of blade protection device of wind driven generator.

Background technique

Progressively expansion along with the construction of wind-powered electricity generation new energy, the single-machine capacity of wind power generating set increases day by day, length and width size and the weight of fan blade also continue to increase, because the wind field construction is many on high and steep mountains or the windy area of seashore beach, fan blade is in the long-distance transportation process, when deposit temporarily in the equipment stockyard at the scene and at the construction field (site) in the Secondary Transport process, and is if there is not firm measure, careless slightly, tend to cause the blade scratch, fracture, even scrap.

Summary of the invention

The objective of the invention is to propose a kind of blade protection device of wind driven generator, the protective gear as in the interim storage of blade of wind-driven generator and the transportation process reduces installation cost, improves work efficiency and installation quality.

The object of the present invention is achieved like this: a kind of blade protection device of wind driven generator, (hereinafter to be referred as the blade protection device), it is characterized in that: this blade protection device of wind driven generator mainly is comprised of front bearing and rear support, before this, rear support is during welding for steel structure spare, this front bearing mainly is comprised of fore poppet, connecting plate and front hanger again; This fore poppet is again mainly by longeron IThe left and right sides support of He Cheng Shang shape IForm, about being to the longeron that arranges IAbout hold respectively that correspondence is welded by vertical rod IAnd crossbeam IThe left and right sides support that assembly welding forms I, and between the end, front and back of the bottom of left and right sides vertical rod I and crossbeam I the corresponding diagonal brace that is welded respectively I, in left and right sides vertical rod IBottom and longeron IAbout the correspondence diagonal brace II that is welded respectively between the section, to form a firm steel structure fore poppet, at this longeron IThe be welded lower connecting plate of rectangle of the middle part of upper surface, the connecting plate of the symmetrical rectangle that is welded respectively on the top of left and right sides vertical rod I inner side surface, the center of this lower connecting plate and left and right connecting plates is the isosceles right triangle setting, and opening apart from equating with the centre distance of mounting hole on the blade forward flange dish of the center line of left and right connecting plates, on the lower connecting plate with on left and right connecting plates, offer respectively mounting hole and make this mounting hole corresponding with the attachment hole of blade forward flange dish, before on lower connecting plate and left and right connecting plates and blade forward flange dish, installing bolt in each corresponding aperture the front end of blade of wind-driven generator being fixed on the bearing, in addition, in left and right sides vertical rod ISymmetrical being welded with the otic placode of shackle respectively on the outer side surface at top is with hanger before about forming, when lifting by crane blade; This rear support mainly by back poppet, left and right sides bracket and about after hanger form, this back poppet also main by the longeron II with the left and right sides support II of Cheng Shang shape forms the left and right sides support II of this back poppet and the left and right sides support of fore poppet IStructure identical, namely about being to about the longeron II that arranges end respectively corresponding being welded formed the left and right sides support II of De Cheng Shang shape by vertical rod II and crossbeam II assembly welding, the diagonal brace III is welded respectively between the end, front and back of the middle part of left and right sides vertical rod II and crossbeam II, secondary longeron is welded between the front portion of left and right sides crossbeam II, longeron on being welded between the middle part of left and right sides vertical rod II, to form a firm steel structure back poppet, on this on longeron symmetrically the interval left and right sides rectangle bracket is installed, this left and right sides bracket can be wooden unit, all offer in the bottom of this left and right sides bracket straight trough with the corresponding setting-in of upper longeron, the cambered surface groove is offered respectively in inboard on this bracket top, left and right sides, and the protection cushion all is installed on this cambered surface groove, this protection cushion can be rubber pad; In addition, symmetry is welded with the otic placode of shackle respectively on the outer side surface at vertical rod II top, the left and right sides, with rear hanger about forming, during for the lifting blade;

During use, the forward flange dish of blade is installed at front bearing, namely before three connecting plates and the corresponding connection of blade forward flange dish usefulness bolt on the bearing; Rear support is placed on 3/4 place from the blade tail end, and blade afterbody support is on the soft protective pad on the rear support, for the protection of the blade afterbody.

When blade is deposited in the equipment stockyard; forward and backward bearing can be erected whole fan blade, and the protection blade is not damaged, and blade is at the construction field (site) during Secondary Transport; as long as the wire rope correspondence is passed shackle on the forward and backward bearing hanger, then transports entrucking with two crane lifting blades.

Blade protection device of wind driven generator proposed by the invention, rational in infrastructure, safe and reliable, in the interim storage of blade of wind-driven generator and transportation process, provide effective protection, reduced installation cost, improved work efficiency and installation quality.

Now in conjunction with the accompanying drawings and embodiments blade protection device of wind driven generator proposed by the invention is described further.

Description of drawings

Fig. 1 is that blade protection device of wind driven generator proposed by the invention uses schematic diagram.

Fig. 2 is part 1 in the blade protection device of wind driven generator proposed by the invention: the master of front bearing looks schematic diagram.

Fig. 3 is part 2 in the blade protection device of wind driven generator proposed by the invention: the schematic perspective view of rear support.

Among Fig. 1～Fig. 3: 1, front bearing 2, rear support 3.1, vertical rod I3.2, vertical rod II 4, diagonal brace I5.1, crossbeam I5.2, crossbeam II 6, diagonal brace II 7.1, longeron I7.2, longeron II 8, connecting plate 9, forward flange dish 10, otic placode 11, shackle 12, upper longeron 13, diagonal brace III 14, secondary longeron 15, bracket 16, blade.

Embodiment

Can find out from Fig. 1-Fig. 3: a kind of blade protection device of wind driven generator is characterized in that:

This blade protection device of wind driven generator mainly is comprised of front bearing 1 and rear support 2, and before this, rear support 1,2 is during welding for steel structure spare, this front bearing 1 mainly is comprised of fore poppet, connecting plate 8 and front hanger again; This fore poppet is again mainly by longeron I7.1 the left and right sides support of He Cheng Shang shape IForm, about being to the longeron that arranges I7.1 about hold respectively that correspondence is welded by vertical rod I3.1 and crossbeam I5.1 the left and right sides support that assembly welding forms I, and in left and right sides vertical rod I3.1 bottom and crossbeam I5.1 the end, front and back between the correspondence diagonal brace that is welded respectively I4, in left and right sides vertical rod I3.1 bottom and longeron I7.1 about the correspondence diagonal brace II 6 that is welded respectively between the section, to form a firm steel structure fore poppet, at this longeron I7.1 the be welded lower connecting plate 8 of rectangle of the middle part of upper surface, in left and right sides vertical rod I3.1 the top of inner side surface is the connecting plate 8 of the symmetrical rectangle that is welded respectively, this lower connecting plate 8 is the isosceles right triangle setting with the center of left and right connecting plates 8, and opening apart from equating with the centre distance of mounting hole on the forward flange dish 9 of blade 16 of the center line of left and right connecting plates 8, on the lower connecting plate 8 with on left and right connecting plates 8, offer respectively mounting hole and make each mounting hole corresponding with the attachment hole of the forward flange dish 9 of blade 16, before on lower connecting plate 8 and left and right connecting plates 8 and blade 16 forward flange dishes 9, installing bolt in each corresponding aperture the front end of blade of wind-driven generator 16 being fixed on the bearing 1, in addition, in left and right sides vertical rod I3.1 symmetrical being welded with the otic placode 10 of shackle 11 respectively on the outer side surface at top is with hanger before about forming, when lifting by crane blade 16; This rear support 2 mainly by back poppet, left and right sides bracket 15 and about after hanger form, this back poppet also mainly forms the left and right sides support II of this back poppet and the left and right sides support of fore poppet by the left and right sides support II of longeron II 7.2 He Cheng Shang shapes IStructure identical, namely about being to about the longeron II 7.2 that arranges end respectively corresponding being welded formed the left and right sides support II of De Cheng Shang shape by vertical rod II 3.2 and crossbeam II 5.2 assembly weldings, diagonal brace III 13 is welded respectively between the end, front and back of the middle part of left and right sides vertical rod II 3.2 and crossbeam II 5.2, secondary longeron 14 is welded between the front portion of left and right sides crossbeam II 5.2, longeron 12 on being welded between the middle part of left and right sides vertical rod II 3.2, to form a firm steel structure back poppet, on this on longeron 12 symmetrically the interval left and right sides rectangle bracket 15 is installed, this left and right sides bracket 15 can be wooden unit, all offer in the bottom of this left and right sides bracket 15 straight trough with upper longeron 12 corresponding setting-ins, the cambered surface groove is offered respectively in inboard on these left and right sides bracket 15 tops, and the protection cushion all is installed on this cambered surface groove, this protection cushion can be rubber pad; In addition, symmetry is welded with the otic placode 10 of shackle 11 respectively on the outer side surface at left and right sides vertical rod II 3.2 tops, with rear hanger about forming, during for lifting blade 16;

During use, the forward flange dish 9 of blade 16 is installed at front bearing 1, namely before the corresponding connection of forward flange dish 9 usefulness bolts of three connecting plates 8 and blade 16 on the bearing 1; Rear support 2 is placed on from 3/4 place of blade 16 tail ends, and blade 16 afterbody supports are on the soft protective pad on the rear support 2, for the protection of the afterbody of blade 16.

When blade 16 is deposited in the equipment stockyard; forward and backward bearing 1,2 can be erected whole blade of wind-driven generator 16; protection blade 16 is not damaged; blade 16 is at the construction field (site) during Secondary Transport; as long as the wire rope correspondence is passed shackle 11 on forward and backward bearing 1,2 hangers, then transports entrucking with two crane lifting blades 16.

Claims

1. blade protection device of wind driven generator is characterized in that:

A, this blade protection device of wind driven generator mainly are comprised of front bearing (1) and rear support (2), and before this, rear support (1,2) is during welding for steel structure spare, this front bearing (1) mainly is comprised of fore poppet, connecting plate (8) and front hanger again; This fore poppet is again mainly by longeron I(7.1) are with the left and right sides support of Cheng Shang shape IForm, about being to the longeron that arranges I(7.1) holding respectively about, correspondence is welded by vertical rod I(3.1) and crossbeam I(5.1) left and right sides support that forms of assembly welding I, and in left and right sides vertical rod I(3.1) bottom and crossbeam I(5.1) the correspondence diagonal brace that is welded respectively between the end, front and back I(4), in left and right sides vertical rod I(3.1) bottom and longeron I(7.1) the correspondence diagonal brace that is welded respectively between the section about II(6), at this longeron IThe be welded lower connecting plate (8) of rectangle of the middle part of upper surface (7.1) is in left and right sides vertical rod I(3.1) top of the inner side surface left and right connecting plates (8) of the symmetrical rectangle that is welded respectively, this lower connecting plate (8) is the isosceles right triangle setting with the center of left and right connecting plates (8), and opening apart from equating with the centre distance of mounting hole on the forward flange dish (9) of blade (16) of the center line of left and right connecting plates (8), go up and on left and right connecting plates (8), offer respectively mounting hole and make each mounting hole corresponding with the attachment hole of the forward flange dish (9) of blade (16) at lower connecting plate (8), in left and right sides vertical rod I(3.1) on the outer side surface at top respectively symmetry be welded form with the otic placode (10) of shackle (11) about before hanger;

B, this rear support (2) mainly by back poppet, left and right sides bracket (15) and about after hanger form, this back poppet is mainly by longeron II(7.2) are with the left and right sides support of Cheng Shang shape IIForm the left and right sides support of this back poppet IILeft and right sides support with fore poppet IStructure identical, namely about being to the longeron that arranges II(7.2) holding respectively about, correspondence is welded by vertical rod II(3.2) and crossbeam II(5.2) left and right sides support that forms of assembly welding II, in left and right sides vertical rod II(3.2) middle part and crossbeam II(5.2) diagonal brace is welded respectively between the end, front and back III(13), at left and right sides crossbeam II(5.2) the secondary longeron (14) that is welded between the front portion is in left and right sides vertical rod II(3.2) upper longeron (12) is welded between the middle part; on longeron on this (12) symmetrically the interval left and right sides rectangle bracket (15) is installed; all offer in the bottom of this left and right sides bracket (15) straight trough with the corresponding setting-in of upper longeron (12); the cambered surface groove is offered respectively in inboard on this left and right sides bracket (15) top; and on this cambered surface groove, all install and protect cushion; in addition, in left and right sides vertical rod II(3.2) on the outer side surface at top respectively symmetry be welded form with the otic placode (10) of shackle (11) about after hanger.

2. blade protection device of wind driven generator according to claim 1 is characterized in that this left and right sides bracket (15) is wooden unit.

3. blade protection device of wind driven generator according to claim 1 is characterized in that this protection cushion is rubber pad.