阅读说明：本技术 一种风电叶片腹板二次粘接定位方法 (Secondary bonding and positioning method for wind power blade web ) 是由 何贵斌 陈佳佳 林明 邵立东 李秋岑 于 2020-06-03 设计创作，主要内容包括：一种风电叶片腹板二次粘接定位方法,涉及非金属复合材料加工成型技术领域,具体为：在腹板与上壳体粘接完成准备进行与下壳体二次粘接前,使用A/B胶将定位块粘贴在腹板外侧的下壳体上,同时使用A/B胶将定位块挡块粘贴在腹板外侧立面上,之后在腹板粘接区域涂胶黏剂,翻转模具将上壳体与下壳体进行粘接,模具合住之后,将腹板外侧多余胶黏剂收掉,并将腹板加强布手糊在腹板与下壳体的相应位置,待叶片合模后固化结束,将定位块及定位块挡块去除。本发明有益效果：消除了二次粘接后,定位块对手糊腹板加强布产生的问题,提高叶片的质量,同时降低了腹板补强布手糊难度,提高腹板加强布手糊效率。(A secondary bonding and positioning method for a wind power blade web relates to the technical field of non-metal composite material processing and forming, and specifically comprises the following steps: before a web and an upper shell are bonded to prepare for secondary bonding with a lower shell, a positioning block is bonded to the lower shell on the outer side of the web by using A/B glue, a positioning block stop dog is bonded to a vertical face on the outer side of the web by using the A/B glue, then adhesive is coated on a bonding area of the web, an upper shell and the lower shell are bonded by a turnover die, after the die is closed, redundant adhesive on the outer side of the web is collected, web reinforcing cloth is pasted to the corresponding position of the web and the lower shell, curing is finished after a blade is closed, and the positioning block stop dog are removed. The invention has the beneficial effects that: after the secondary bonding has been eliminated, the problem that the locating piece produced to pasting the web reinforcing cloth to the hand improves the quality of blade, has reduced the web reinforcing cloth hand simultaneously and has pasted the degree of difficulty, improves the web reinforcing cloth hand and pastes efficiency.)

1. A secondary bonding and positioning method for a wind power blade web is characterized by comprising the following steps: the method comprises the following steps:

step 1, before a web (3) is bonded with an upper shell (2) to prepare for secondary bonding with a lower shell (1), a positioning block (7) is adhered to the lower shell (1) on the outer side of the web (3) by using A/B glue (6), and a positioning block stop block (8) is adhered to the vertical surface on the outer side of the web (3) by using the A/B glue (6); the positioning block (7) is made of glass fiber reinforced plastic, the radial length of the positioning block is 50-150mm, the height of the positioning block is 150-200mm, the vertical surface thickness of the positioning block is 10-15mm, and the upper side of the positioning block is provided with a bevel edge of 30-45 degrees; the positioning block stopper (8) is made of glass fiber reinforced plastic, the radial length is 50-150mm, the height is 100mm, the thickness is 50-100mm, the lower side of the positioning block stopper is provided with a 30-45-degree bevel edge, and the distance from the positioning block (7) to the outer side of the web plate is the same as the thickness of the positioning block stopper (8);

step 2, gluing an adhesive (5) on the bonding area of the web (3), and turning over the die to bond the upper shell (2) and the lower shell (1);

step 3, after the die is closed, collecting excess adhesive on the outer side of the web (3), manually pasting the web reinforcing cloth (4) at the corresponding positions of the web (3) and the lower shell (1), and enabling the web reinforcing cloth to pass through a space formed by a special positioning block (7), a positioning block stop block (8) and the web (3) according to a normal process when the web reinforcing cloth (4) is manually pasted to the position of the positioning block (7);

and 4, after the blade is solidified after being subjected to die assembly, removing the positioning block (7) and the positioning block stop block (8).

Technical Field

The invention belongs to the technical field of processing and molding of non-metallic composite materials, and particularly relates to a secondary bonding and positioning method for a wind power blade web.

Background

Wind-powered electricity generation blade generally divide into casing, girder and web according to the function and the characteristics of part, when traditional megawatt level wind-powered electricity generation blade preparation, generally be preceding preforming web and blade upper and lower casing, then use the gluing agent to bond the web earlier at last casing, use the gluing agent again to go up casing and web and lower casing and carry out the secondary and bond to accomplish the manufacturing of blade.

During the second bonding, the web is generally positioned by the way that the positioning block is attached to the web. This kind of locate mode need paste the locating piece hand on web and lower casing when the hand is pasted web reinforcement cloth, because there is the step around the locating piece, the hand is pasted the degree of difficulty and is big, and is inefficient to there is stress concentration locating piece step department, influences the web and strengthens cloth hand and paste the quality, has the risk.

Disclosure of Invention

The invention aims to solve the technical problem of providing a secondary bonding and positioning method for a wind power blade web, which solves the problem caused by the fact that a web positioning block and hand lay-up web reinforcing cloth are arranged between the web positioning block and the hand lay-up web reinforcing cloth in the secondary bonding process of the wind power blade at present, eliminates the problem that the positioning block generates the hand lay-up web reinforcing cloth after secondary bonding, improves the quality of the blade, reduces the hand lay-up difficulty of the web reinforcing cloth and improves the hand lay-up efficiency of the web reinforcing cloth.

The technical scheme adopted by the invention for solving the technical problems is as follows: a secondary bonding and positioning method for a wind power blade web comprises the following steps:

step 1, before a web and an upper shell are bonded to prepare for secondary bonding with a lower shell, a positioning block is bonded to the lower shell on the outer side of the web by using A/B glue, and a positioning block stop block is bonded to a vertical surface on the outer side of the web by using the A/B glue; the positioning block is made of glass fiber reinforced plastic, the radial length of the positioning block is 50-150mm, the height of the positioning block is 150-200mm, the vertical surface thickness of the positioning block is 10-15mm, and the upper side of the positioning block is provided with a bevel edge of 30-45 degrees; the positioning block stop block is made of glass fiber reinforced plastic, the radial length is 50-150mm, the height is 100mm, the thickness is 50-100mm, the lower side of the positioning block stop block is provided with a 30-45-degree bevel edge, and the distance from the positioning block to the outer side of the web plate is the same as the thickness of the positioning block stop block;

step 2, gluing an adhesive on the web bonding area, and turning over the die to bond the upper shell and the lower shell;

step 3, after the die is closed, collecting surplus adhesive on the outer side of the web, manually pasting the web reinforcing cloth at the corresponding positions of the web and the lower shell, and when the web reinforcing cloth is manually pasted to the position of the positioning block, enabling the manually pasted cloth to pass through a space formed by the special positioning block, the positioning block stop block and the web according to a normal process;

and 4, after the blade is solidified after being assembled, removing the positioning block and the stop block of the positioning block.

The invention has the beneficial effects that: after the secondary bonding web positioning is carried out by the bonding positioning method, a positioning block does not need to be manually pasted between the web and the lower shell, the operation difficulty of manually pasting the web reinforcing cloth can be reduced, the efficiency of manually pasting the web reinforcing cloth is improved, the risk of step stress concentration of the web reinforcing cloth at the edge of the positioning block, the risk of virtual adhesion between the positioning block and the outer side of the web and the like is eliminated, and the quality of the web manually pasted cloth is improved.

Drawings

FIG. 1 is a schematic overall structure diagram of a secondary bonding and positioning method for a wind power blade web plate according to the invention;

FIG. 2 is an enlarged view of II of FIG. 1 according to the present invention.

The labels in the figure are: 1. the lower shell, 2, the upper shell, 3, the web, 4, the web reinforcing cloth, 5, the adhesive, 6, A/B adhesive, 7, the positioning block, 8 and the positioning block stop dog.

Detailed Description

The following description of specific embodiments (examples) of the present invention are provided in conjunction with the accompanying drawings to enable those skilled in the art to better understand the present invention.

A secondary bonding and positioning method for a wind power blade web comprises the following steps:

step 1, before a web 3 and an upper shell 2 are bonded to prepare for secondary bonding with a lower shell 1, a positioning block 7 is bonded to the lower shell 1 on the outer side of the web 3 by using A/B glue 6, and a positioning block stop 8 is bonded to the vertical surface on the outer side of the web 3 by using the A/B glue 6;

step 2, gluing an adhesive 5 on the bonding area of the web 3, and turning over the die to bond the upper shell 2 and the lower shell 1;

step 3, after the die is closed, collecting excess adhesive on the outer side of the web 3, manually pasting the web reinforcing cloth 4 at the corresponding positions of the web 3 and the lower shell 1, and when the web reinforcing cloth 4 is manually pasted to the position of the positioning block 7, enabling the web reinforcing cloth 4 to pass through a space formed by the special positioning block 7, the positioning block stop 8 and the web 3 according to a normal process;

and 4, after the blade is solidified after being subjected to die assembly, removing the positioning block 7 and the positioning block stop block 8.

Furthermore, the positioning block 7 is made of glass fiber reinforced plastic, the radial length of the positioning block 7 is 50-150mm, the height of the positioning block 7 is 150-200mm, the vertical surface thickness of the positioning block is 10-15mm, and the upper side of the positioning block is provided with a 30-45-degree bevel edge, so that the positioning block is adhered to the lower shell 1 on the outer side of the web 3 in use, the distance from the positioning block 7 to the outer side of the web 3 is the same as the thickness of the positioning block stopper 8, when the web 3 is secondarily adhered to the lower shell 1, the positioning block 7 is matched with the positioning block stopper 8 which is positioned and adhered to the outer side of the web 3 to complete the positioning of the web 3, and in the positioning mode, the positioning block.

Furthermore, the positioning block stopper 8 is made of glass fiber reinforced plastic, the radial length is 50-150mm, the height is 100mm, the thickness is 50-100mm, the lower side of the positioning block stopper is provided with a 30-45-degree bevel edge, the positioning block stopper is adhered to the outer side vertical surface of the lower shell below the web plate 3 in the direction when in use, when the web plate is secondarily adhered to the lower shell, the angle is matched with the 30-45-degree bevel edge on the upper side of the positioning block for guiding, and the positioning block stopper 8 is guided into the inner side of the positioning block 7 to complete positioning.