Chamfer protection tool for pultrusion girder plate of wind power blade

Abstract

According to the technical scheme, the chamfering protection tool comprises an upper plate, movable side plates, a bottom plate and spring pieces, the two sides of the front end of the upper plate are connected with the bottom plate through pin shafts, and a 90-degree bending part is arranged in the middle of the front end of the upper plate; the movable side plate is of an L-shaped structure, a sleeve is arranged at the turning position of the movable side plate, and the pin shaft is sleeved with the sleeve, so that the movable side plate can rotate around the pin shaft. The spring piece is fixed at the rear end of the upper plate, and the tail end of the spring piece extends between the upper plate and the bottom plate to form a plate crimping space; when the head of the plate is in contact with the 90-degree bending part of the upper plate, the L-shaped vertical plate of the movable side plate is completely attached to the side face of the plate. The tool is arranged at the plate outlet, the plate automatically drives the tool to move out, chamfering protection without shutdown and manual intervention is achieved, and the problem that 0.1-0.3 mm ultra-thin chamfers are collided and damaged in the high-speed plate outlet process is solved.

Description

Technical Field

[0001] This invention relates to the field of pultruded main beam plates for wind turbine blades, and specifically to a chamfer protection tooling for pultruded main beam plates for wind turbine blades. Background Technology

[0002] The main beam panels will have chamfered edges at the beginning and end, reaching lengths of 800mm and 1600mm. Because the ends of the chamfered panels are relatively thin (only 0.1-0.3mm), the chamfers are easily damaged during the unloading process. Traditional chamfering protection fixtures have the following disadvantages: 1. They cannot withstand excessive speeds during unloading and are prone to detaching, causing damage to the chamfered edges; 2. They require manual removal and installation, wasting time; 3. The side plates of the fixture are not adjustable, making them inconvenient for personnel to use. Summary of the Invention

[0003] To effectively address the problems raised by existing technologies, this invention proposes a chamfer protection fixture for pultruded main beam plates of wind turbine blades. This fixture protects the chamfered ends of the plates during the plate ejection process. Since the thickness of the plate after chamfering is 0.1-0.3mm, the chamfered area is relatively thin and easily damaged during ejection. Therefore, an adjustable protective fixture is needed to protect the chamfer, reduce the risk of chamfer damage and cracking, and improve the quality of the main beam plate ejection.

[0004] To achieve the above objectives, the technical solution of this invention is as follows:

[0005] A chamfer protection fixture for pultruded main beam plates of wind turbine blades includes an upper plate, a movable side plate, a bottom plate, and spring plates.

[0006] The upper plate is connected to the bottom plate on both sides of the front end by pins, and the upper plate has a 90-degree bend in the middle of the front end.

[0007] The movable side plate has an L-shaped structure, with a sleeve at the turning point. The sleeve is fitted onto the pin, allowing the movable side plate to rotate around the pin.

[0008] The spring sheet is fixed to the rear end of the upper plate, and the end of the spring sheet extends between the upper plate and the bottom plate to form a pressing space for the plates.

[0009] When the top of the board contacts the 90-degree bend of the upper board, the L-shaped vertical plate of the movable side panel is completely in contact with the side of the board.

[0010] Specifically, the base plate includes a horizontal portion and a front bending portion, wherein the angle between the bending portion and the horizontal portion is 165° to 175°.

[0011] Preferably, the angle between the bent portion and the horizontal portion is 170°.

[0012] Specifically, the upper and lower end faces of the rear end of the base plate are provided with 45° chamfers.

[0013] A method for chamfering protection of pultruded main beam plates for wind turbine blades includes the following steps:

[0014] S1. Install the tooling: Place the protective device at the pultrusion equipment outlet;

[0015] S2. Plate introduction: The plate head enters from the 45° chamfer at the rear end of the base plate, pushing the short sidewall of the movable side plate, causing it to rotate inward around the pin axis;

[0016] S3. Positioning and Fitting: When the head of the board contacts the 90° bend of the upper plate 1, the L-shaped structure of the movable side plate completely fits the side of the board;

[0017] S4. Elastic clamping: The spring sheet elastically presses against the upper surface of the plate to form a stable clamping state;

[0018] S5. Synchronous Sliding Protection: The board is ejected at a speed of 1500 mm / s, and the board moves synchronously with the protective fixture to protect the 800 mm or 1600 mm chamfer area.

[0019] The beneficial effects of this invention are:

[0020] This invention solves the problem of impact damage to ultra-thin chamfers. Through a collaborative design of a spring-loaded plate and an L-shaped rotating structure with movable side plates, it achieves precise elastic pressing of ultra-thin chamfers (0.1-0.3mm), avoiding collision risks during high-speed plate ejection (1500 mm / s). Verification and application have shown no instances of chamfer protection fixture detachment during use, reducing the number of plate impacts from 3 to 0. The side plates automatically adhere when the plate contacts the 90° bend, eliminating the need for manual intervention or equipment stoppage. This eliminates the traditional stoppage and fixture installation step, effectively improving plate ejection efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] The diagram shows: 1. Top plate; 2. Movable side plate; 3. Bottom plate; 4. Spring plate. Detailed Implementation

[0023] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0024] like Figure 1 The tooling shown includes a chamfer protection fixture for the pultruded main beam plate of a wind turbine blade, comprising an upper plate 1, a movable side plate 2, a bottom plate 3, and a spring plate 4.

[0025] The base plate 3 includes a horizontal part and a bent part located at the front end of the horizontal part. The angle between the bent part and the horizontal part is 165°-175°, preferably 170°. This ensures that the base plate is in contact with the material channel base plate after replacement, preventing the material from shifting to the left or right. The upper and lower end faces of the rear end of the base plate 3 are machined with 45° chamfers.

[0026] The upper plate 1 is located above the horizontal part of the bottom plate 3, and the distance between the two is slightly greater than the thickness of the plate. The front ends of the upper plate 1 are connected to the horizontal part of the bottom plate 3 by pins, and the distance between the two pins is equal to the width of the plate. The 90° bend in the middle of the front end of the upper plate 1 is used to block the plate.

[0027] The movable side plate 2 has an L-shaped structure, and a sleeve is provided at its turning point. The sleeve is fitted onto the pin connecting the upper plate 1 and the bottom plate 3, so that the movable side plate 2 can rotate around the pin.

[0028] In the initial state, the long sidewall of the L-shaped structure is located outside the space formed by the bottom plate 3 and the top plate 1, while the short sidewall is located inside the space.

[0029] Working status: When the board enters the space between the bottom plate 3 and the top plate 1 and presses against the 90° bend of the top plate 1, the L-shaped structure of the movable side plate 2 will automatically fit the side of the board.

[0030] Spring plate 4 is spot-welded to the upper end face of the rear end of upper plate 1, and its end extends into the space between upper plate 1 and bottom plate 3 to form a plate pressing space. When the plate enters this space, spring plate 4 provides a rebound force to press the main beam plate.

[0031] A method for chamfering protection of pultruded main beam plates for wind turbine blades includes the following steps:

[0032] S1. Install the tooling: Place the protective device at the pultrusion equipment outlet;

[0033] S2. Plate introduction: The head of the plate enters from the 45° chamfer at the rear end of the base plate 3, pushing the short sidewall of the movable side plate 2, causing it to rotate inward around the pin axis;

[0034] S3. Positioning and Fitting: When the head of the board contacts the 90° bend of the upper board 1, the L-shaped structure of the movable side board 2 completely fits the side of the board;

[0035] S4. Elastic clamping: Spring plate 4 elastically presses against the upper surface of the plate to form a stable clamping state;

[0036] S5. Synchronous Sliding Protection: The board is ejected at a speed of 1500 mm / s, and the board moves synchronously with the protective fixture to protect the 800 mm or 1600 mm chamfer area.

[0037] Specifically, when placing the fixture, it should be aligned directly with the plate outlet as much as possible. Small angular deviations usually have little impact because initially, the two movable side plates 2 are in the open position. When the plate enters, it will first contact the short sidewalls of the movable side plates 2, pushing it towards the front end of the upper plate 1. During this movement, the long sidewalls of the movable side plates 2 will make minor adjustments to the plate's direction of travel. Until the plate's head contacts the 90° bend of the upper plate 1, the long sidewalls of the two movable side plates 2 will effectively limit the plate, ensuring its head fully enters the space between the upper plate 1 and the bottom plate 3.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A chamfer protection tool for pultruded main beam plates of wind turbine blades, characterized in that, Includes top plate, movable side plate, bottom plate, and spring plates. The upper plate is connected to the bottom plate on both sides of the front end by pins, and the upper plate has a 90-degree bend in the middle of the front end. The movable side plate has an L-shaped structure, with a sleeve at the turning point. The sleeve is fitted onto the pin, allowing the movable side plate to rotate around the pin. The spring sheet is fixed to the rear end of the upper plate, and the end of the spring sheet extends between the upper plate and the bottom plate to form a pressing space for the plates. When the top of the board contacts the 90-degree bend of the upper board, the L-shaped vertical plate of the movable side panel is completely in contact with the side of the board.

2. The protective fixture according to claim 1, characterized in that, The base plate includes a horizontal section and a front bending section, wherein the angle between the bending section and the horizontal section is 165° to 175°.

3. The protective fixture according to claim 2, characterized in that, The angle between the bent portion and the horizontal portion is 170°.

4. The protective tooling according to claim 1, characterized in that, The bottom plate has 45° chamfers on the upper and lower end faces at the rear end.

5. A method for chamfering protection of pultruded main beam plates for wind turbine blades, employing the protective fixture described in any one of claims 1-4, comprising the following steps: S1. Install the tooling: Place the protective device at the pultrusion equipment outlet; S2. Plate introduction: The plate head enters from the 45° chamfer at the rear end of the base plate, pushing the short sidewall of the movable side plate, causing it to rotate inward around the pin axis; S3. Positioning and Fitting: When the head of the panel contacts the 90° bend of the upper panel, the L-shaped structure of the movable side panel completely fits the side of the panel; S4. Elastic clamping: The spring sheet elastically presses against the upper surface of the plate to form a stable clamping state; S5. Synchronous Sliding Protection: The board is ejected at a speed of 1500 mm / s, and the board moves synchronously with the protective fixture to protect the 800 mm or 1600 mm chamfer area.

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