Multi-blade universal blade tip extension section clamping tool

Abstract

The embodiment of the utility model provides a multi-blade type universal blade tip extension section clamping tool which comprises two arc-shaped frames, the two arc-shaped frames are oppositely arranged and can be closed to form a ring shape, one ends of the two arc-shaped frames are movably connected through structures so as to enable the two arc-shaped frames to be movably connected, and the other ends of the two arc-shaped frames can be movably connected through the structures. The free ends of the two arc-shaped frames can be combined in a covering mode, locking mechanisms are arranged at the free ends of the two arc-shaped frames, the locking mechanisms are used for locking the free ends of the two combined arc-shaped frames, and a plurality of pressurization supporting mechanisms are installed on the arc-shaped frames. According to the universal blade tip extension section clamping tool for the multiple blade types, the problem that clamping tools for different blade types and different positions of the same blade type are not universal is solved, the problem that the adaptability of the clamping tools and the blades is poor due to the fact that the clamping tools are wrapped with heating blankets and the like is solved, the development difficulty of the blade tip clamping tools is greatly lowered, and the working efficiency is improved. And the universality of the clamping tool is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine blades, in particular to a multi-blade universal blade tip extension section clamping tool. Background Art

[0002] Existing methods for extending blade tips primarily involve attaching a prefabricated tip to the blade body to be extended through various methods. Most methods involve cutting off the tip before extending. This method involves first cutting off the tip section of the original blade, then gluing the new tip to the original blade's bonded section. The new tip mates with the cutout portion of the original tip via an expanded end face, then adheres with adhesive and heat-cures to form the new tip.

[0003] During the bonding process, a clamping tool is required to clamp and fix the blade tip connection part, and the clamping tool can be removed only after the adhesive is cured.

[0004] Patent CN218325088U proposes a blade tip extension structure for a wind turbine blade, which is mainly achieved by cutting off the tip segment of the original blade and then bonding a new blade tip to the bonding segment of the original blade. No holes are punched in the bonding area to avoid reducing the connection strength between the new blade tip and the root segment. The pressure side shell of the new blade tip and the suction side shell of the new blade tip are split structures with good compatibility between the components. They can be installed and connected in steps during installation, reducing the difficulty of the installation operation and the density and strength of the bonding.

[0005] However, most blade tip clamping fixtures currently in use are single-leaf clamping fixtures, which require individual design. This design must be completed before the blade tip extension work begins to avoid poor adaptability and mismatching, leading to a complex operational process. Because they are single-leaf clamping fixtures, i.e., dedicated fixtures for each blade model and each clamping position, their clamping positions are fixed, making them neither universal nor flexible. Furthermore, blade clamping fixtures with a fixed diameter often have poor adaptability due to the need to wrap a heating blanket around the outside of the blade tip. Utility Model Content

[0006] In view of the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present invention is to provide a multi-leaf universal blade tip extension section clamping tool.

[0007] The technical solution adopted in the embodiment of the present utility model is a multi-leaf universal blade tip extension section clamping tool, which includes two arc-shaped frames. The two arc-shaped frames are arranged relative to each other and can be closed to form a ring. A movable connection is constructed between one end of the two arc-shaped frames to movably connect the two arc-shaped frames. The free ends of the two arc-shaped frames can be overlapped, and the free ends of the two arc-shaped frames are provided with a locking mechanism. The locking mechanism is used to lock the free ends of the two arc-shaped frames after overlapping. A number of pressure support mechanisms are installed on the arc-shaped frames.

[0008] Furthermore, the pressurized support mechanism includes a first threaded hole, which is opened on the arc frame. A first screw rod that matches the first threaded hole is screwed into the first threaded hole, and the first screw rod is rotated to adjust the length of the first screw rod extending between the two arc frames.

[0009] Furthermore, the pressurizing support mechanism further includes a spring, which abuts against the end of the first screw extending between the two arc-shaped frames.

[0010] Furthermore, a buffer pad is fixedly connected to a side of the spring away from the first screw.

[0011] Furthermore, the spring is movably connected to the end of the first screw extending between the two arc-shaped frames.

[0012] Furthermore, the reed is constructed in an arc shape, and the convex surface of the reed faces the first screw.

[0013] Furthermore, the locking mechanism includes a second screw rod, and the free ends of the two arc-shaped frames are each provided with a second threaded hole that cooperates with the second screw rod.

[0014] Compared with the existing technology, the multi-leaf universal blade tip extension section clamping tool proposed in the utility model solves the problem that the clamping tool is not universal for different blade types and different positions of the same blade type, and solves the problem of poor adaptability between the clamping tool and the blade due to wrapping heating blankets, etc., greatly reduces the difficulty of developing the blade tip clamping tool and realizes the universality of the clamping tool.

[0015] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

[0016] The overview of various implementations or examples of the technology described in this utility model is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the embodiments of the utility model. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model when in use.

[0019] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model in application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0022] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0023] See Figures 1 to 2The embodiment of the present utility model provides a blade tip extension clamping tool for universal blades, comprising two arc-shaped frames 1. The two arc-shaped frames 1 are arranged relative to each other and can be closed to form a ring. A movable connection is constructed between one end portion of the two arc-shaped frames 1 to movably connect the two arc-shaped frames 1. The free ends of the two arc-shaped frames 1 can be overlapped, and the free ends of the two arc-shaped frames 1 are provided with a locking mechanism. The locking mechanism is used to lock the free ends of the two arc-shaped frames 1 after overlapping. A plurality of pressurized support mechanisms are installed on the arc-shaped frames 1. When used, this technical solution is directly sleeved on the blade and clamped by multiple pressurized support mechanisms, which solves the problem that clamping tools for different blades and different positions of the same blade are not universal. For the case where the blade is wrapped with a heating blanket, this tool can be directly clamped to the wrapped and heated blade. The blanket solves the problem of poor compatibility between the clamping tool and the blade due to the wrapping of the heating blanket, etc., greatly reduces the difficulty of developing the blade tip clamping tool, and realizes the universality of the clamping tool.

[0024] The pressurized support mechanism includes a first threaded hole 2 formed on the arcuate frame 1. A first screw 3 is threaded into the first threaded hole 2. Rotating the first screw 3 adjusts the length of the first screw 3 extending between the two arcuate frames 1. The arcuate frames 1 provide a support base for the pressurized support mechanism. The first screw 3 is the primary component for achieving profile adjustment. Rotating the first screw 3 adjusts the length of the first screw 3 extending between the two arcuate frames 1.

[0025] The pressurized support mechanism also includes a spring 4, which abuts the end of the first screw 3 extending between the two curved frames 1. The spring 4 is constructed in an arc shape, with the protruding surface of the spring 4 facing the first screw 3. The arc-shaped structure of the spring 4 provides a certain degree of rigidity and elasticity, which increases the force-bearing area at the clamping position and evenly distributes the pressure. The spring 4 is movably connected to the end of the first screw 3 extending between the two curved frames 1.

[0026] A buffer pad 5 is fixedly connected to the side of the reed 4 away from the first screw 3. The buffer pad 6 directly contacts the blade and is used to achieve soft contact of the contact surface.

[0027] The locking mechanism is used to fix the two arc-shaped frames 1 after overlapping. Specifically, the locking mechanism includes a second screw 6 . The free ends of the two arc-shaped frames 1 are each provided with a second threaded hole that cooperates with the second screw 6 .

[0028] Specific usage process:

[0029] Open the locking mechanism and open the arc frame 1;

[0030] Then, according to the position where the blade tip needs to be clamped, the arc frame 1 is closed to form a ring and sleeved to the corresponding position, and the locking mechanism is locked;

[0031] By rotating the first screws 3, each first screw 3 is synchronously moved closer to the blade until they are completely attached and pressure is applied.

[0032] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure. Furthermore, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. Multi-leaf universal blade tip extension clamping fixture, characterized by: The invention comprises two arc-shaped frames (1), the two arc-shaped frames (1) are arranged relative to each other and can be closed to form a ring, one end portion of the two arc-shaped frames (1) is configured to be movably connected so as to movably connect the two arc-shaped frames (1), the free ends of the two arc-shaped frames (1) can be overlapped, and the free ends of the two arc-shaped frames (1) are provided with a locking mechanism, the locking mechanism is used to lock the free ends of the two arc-shaped frames (1) after overlapping, and a plurality of pressure support mechanisms are installed on the arc-shaped frames (1).

2. The multi-leaf universal blade tip extension clamping fixture according to claim 1, characterized in that: The pressurizing support mechanism comprises a first threaded hole (2), the first threaded hole (2) being provided on the arc-shaped frame (1), a first screw rod (3) cooperating therewith being screwed into the first threaded hole (2), and the first screw rod (3) being rotated to adjust the length of the first screw rod (3) extending between the two arc-shaped frames (1).

3. The multi-leaf universal blade tip extension clamping fixture according to claim 2, characterized in that: The pressurizing support mechanism further comprises a leaf spring (4), which abuts against the end of the first screw rod (3) extending between the two arc-shaped frames (1).

4. The multi-leaf universal blade tip extension clamping fixture according to claim 3, characterized in that: A buffer pad (5) is fixedly connected to the side of the spring (4) away from the first screw rod (3).

5. The multi-leaf universal blade tip extension clamping fixture according to claim 3 or 4, characterized in that: The spring leaf (4) is movably connected to the end of the first screw rod (3) extending between the two arc-shaped frames (1).

6. The multi-leaf universal blade tip extension clamping fixture according to claim 3 or 4, characterized in that: The reed (4) is constructed in an arc shape, and the convex surface of the reed (4) faces the first screw (3).

7. The multi-leaf universal blade tip extension clamping fixture according to claim 1, characterized in that: The locking mechanism comprises a second screw rod (6), and the free ends of the two arc-shaped frames (1) are each provided with a second threaded hole that matches the second screw rod (6).

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