Fixed-distance mounting tool for double-thread screws of wind power blade

Abstract

The utility model belongs to the technical field of screw installation, and particularly discloses a wind power blade double-thread screw fixed-distance installation tool which comprises a supporting piece, a fixing cylinder, a rotating assembly and a fixed-distance connecting rod, the fixed-distance connecting rod is used for connecting the supporting piece and the fixing cylinder, one end of the fixed-distance connecting rod is flush with the end face of the supporting piece, and the other end of the fixed-distance connecting rod is connected with the rotating assembly. The inner bottom of the fixing barrel is rotationally connected with a mounting assembly, one end of the double-thread screw is inserted into the fixing barrel and fixed to the mounting assembly, and the supporting piece can support the other end of the double-thread screw; the rotating assembly is used for driving the mounting assembly and the double-thread screw to rotate; the vertical distance between the side, away from the fixing cylinder, of the fixed-distance connecting rod and the end of the mounting assembly is equal to the length, needing to be exposed, of the double-thread screw. The exposed length of the double-thread screw can be detected, it is ensured that the exposed length of the double-thread screw meets the technological requirement, and reworking caused by inconsistent exposed lengths of the double-thread screw or the quality problem existing in the wind power blade installation process in a wind field is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of screw installation technology, and in particular relates to a fixed-distance installation fixture for double-headed screws on wind turbine blades. Background Technology

[0002] Wind turbine blades are the core components of wind turbine generators, converting natural wind energy into electrical energy. They are a primary indicator of a wind turbine's design and technological level. The working principle of wind turbine blades is to utilize wind energy, generating mechanical energy through blade rotation, and ultimately converting that mechanical energy into electrical energy. The double-ended screw used in this process is a crucial component of the wind turbine generator, playing an indispensable role. Its main purpose is to connect the blades to the turbine hub. The double-ended screw has threads at both ends; one end connects to the pre-embedded sleeve on the blade, and the other end connects to the turbine nut. It is the main load-bearing fastener in the connection between the blade and the turbine, and a key factor in ensuring the long-term stability and safety of the wind turbine blades.

[0003] To ensure the thread engagement length of the screw meets the requirements for connection tightness and standardization, the extension length of the double-ended screw is specified during the production and assembly of wind turbine blades. Because a large number of double-ended screws need to be installed at the blade root, and the assembly extension length and accuracy requirements are high, the wind power industry currently uses manual installation, measuring as it is installed. This method is inefficient, time-consuming, and labor-intensive, hindering subsequent blade production progress. Utility Model Content

[0004] The purpose of this utility model is to provide a fixed-distance installation fixture for double-headed screws of wind turbine blades, so as to solve the problem of low assembly efficiency and long time consumption caused by measuring while installing double-headed screws in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a fixed-distance installation fixture for a double-ended screw of a wind turbine blade, comprising a support member, a fixed cylinder, a rotating assembly, and a fixed-distance connecting rod. The fixed-distance connecting rod is used to connect the support member and the fixed cylinder, and one end of the fixed-distance connecting rod is flush with the end face of the support member. An installation assembly is rotatably connected to the inner bottom of the fixed cylinder. One end of the double-ended screw is inserted into the fixed cylinder and fixed to the installation assembly. The support member can support the other end of the double-ended screw. The rotating assembly is used to drive the installation assembly and the double-ended screw to rotate. The vertical distance between the side of the fixed-distance connecting rod away from the fixed cylinder and the end of the installation assembly is equal to the length of the double-ended screw that needs to be exposed.

[0006] Furthermore, the mounting assembly includes a bearing, a fixing member, and a limiting rod. The inner bottom of the fixing cylinder is rotatably connected to the bearing. The fixing member is fixed inside the bearing. The limiting rod is provided inside the fixing member. The limiting rod matches the end positioning hole of the double-ended screw. The inner hole of the fixing member matches the outer side of the limiting rod. After the double-ended screw is inserted into the limiting rod, it abuts against the end of the bearing. The limiting rod is used to drive the double-ended screw to rotate. The vertical distance between the side of the fixed connecting rod away from the fixing cylinder and the bearing is equal to the length of the double-ended screw that needs to be exposed.

[0007] Furthermore, one end of the limiting rod extends into the fixed cylinder, and the other end extends out of the fixed cylinder.

[0008] Furthermore, the rotating assembly is an electric pistol drill, and the drill head of the electric pistol drill is connected to the limiting rod.

[0009] Furthermore, the rotating assembly adopts a sleeve cap and a handle. The sleeve cap has a connecting hole that matches the shape of the limiting rod, and the handle is fixed to the sleeve cap.

[0010] Furthermore, the support member adopts a semi-circular support cylinder.

[0011] Furthermore, a rubber pad is provided at the outer end of the support member.

[0012] The working principle of this technical solution is as follows: During the installation of the double-ended screw, firstly, the double-ended screw is inserted into the bolt hole, and the double-ended screw spacing detection fixture is connected to an electric pistol drill or handle. The outer part of the double-ended screw is inserted into the fixed cylinder and abuts against the end of the bearing. During this process, the positioning hole at the end of the double-ended screw is inserted into the limit rod for positioning. The double-ended screw is then tightened by manually rotating the handle or using an electric pistol drill until the rubber gasket contacts the end face of the steel flange, achieving the effect of rapid installation of the double-ended screw and ensuring that the exposed length of the double-ended screw reaches the required process range in one go.

[0013] The beneficial effects of this technical solution are as follows:

[0014] 1. It can shorten the operation time during the installation of double-headed screws, speed up the flow of blades in the workshop, shorten the blade forming cycle, and improve the batch production efficiency of blades;

[0015] 2. It can detect the exposed length of the double-ended screw, ensuring that the exposed length of the double-ended screw meets the process requirements, and avoid rework or quality problems of wind turbine blades during wind farm installation caused by inconsistent exposed lengths of the double-ended screw. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a wind turbine blade double-headed screw fixed-distance installation fixture according to the present invention;

[0017] Figure 2 for Figure 1 A structural schematic diagram of the central fixed cylinder and mounting components;

[0018] Figure 3 for Figure 2 The main view;

[0019] Figure 4 for Figure 2 The right view;

[0020] Figure 5 This is a structural diagram of the installed components. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method:

[0022] The reference numerals in the accompanying drawings include: 1. fixed-distance connecting rod, 2. support, 3. fixed cylinder, 4. bearing, 5. sleeve end cap, 6. handle, 7. rubber pad, 8. fixing element, and 9. limit rod.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The basic implementation examples are as follows: Figure 1-5 As shown: A fixed-distance installation fixture for a double-ended screw of a wind turbine blade includes a support member 2, a fixed cylinder 3, a rotating assembly, and a fixed-distance connecting rod 1. The support member 2 is a semi-circular support cylinder that supports the left end of the double-ended screw. The inner diameter of the fixed cylinder 3 and the support member 2 matches the outer diameter of the threaded rods on both sides of the double-ended screw, allowing the double-ended screw to rotate within the fixed cylinder 3 and the support member 2. Two sets of fixed-distance connecting rods 1 are provided, located on both sides of the support member 2 of the fixed cylinder 3. The fixed-distance connecting rods 1 connect the support member 2 and the fixed cylinder 3, with one end of the fixed-distance connecting rod 1 flush with the end face of the support member 2. A rubber pad 7 is provided at the outer end of the support member 2. An installation assembly is rotatably connected to the inner bottom of the fixed cylinder 3, and the right end of the double-ended screw is inserted into the fixed cylinder 3 and fixed to the installation assembly. Figure 4 , 5As shown, the mounting assembly includes a bearing 4, a fixing member 8, and a limiting rod 9. The inner bottom of the fixing cylinder 3 is rotatably connected to the bearing 4. The fixing member 8 is fixed inside the bearing 4, and the limiting rod 9 is provided inside the fixing member 8. The limiting rod 9 is a hexagonal head. The limiting rod 9 matches the end positioning hole (internal hexagonal hole) of the double-ended screw, and the inner hole of the fixing member 8 matches the outer side of the limiting rod 9. After the double-ended screw is inserted into the limiting rod 9, it abuts against the end of the bearing 4. The limiting rod 9 is used to drive the double-ended screw to rotate. The vertical distance between the left side of the spacer connecting rod 1 and the left side of the bearing 4 is equal to the length of the double-ended screw that needs to be exposed. One end of the limiting rod 9 extends into the fixing cylinder 3, and the other end extends out of the fixing cylinder 3. The rotating assembly is used to drive the mounting assembly and the double-ended screw to rotate. Specifically, the rotating assembly can be manual or electric. When electric, the rotating assembly uses an electric pistol drill, and the drill head of the electric pistol drill is connected to the limiting rod 9. When the rotating assembly is in manual mode, the rotating assembly includes a sleeve cap 5 and a handle 6. The sleeve cap 5 has a connection hole that matches the shape of the limit rod 9. The sleeve cap 5 can be installed on the outside of the limit rod 9, and the handle 6 is fixed on the sleeve cap 5.

[0025] The specific implementation process is as follows:

[0026] During the installation of the double-ended screw, first insert the double-ended screw into the bolt hole, and connect the double-ended screw spacing detection fixture to the electric pistol drill or handle 6. Insert the outer part of the double-ended screw into the fixed cylinder 3 and abut it against the end of the bearing 4. During this process, the positioning hole at the end of the double-ended screw is inserted into the limit rod 9 for positioning. Tighten the double-ended screw by manually rotating handle 6 or using the electric pistol drill until the rubber gasket 7 contacts the end face of the steel flange, achieving the effect of quick installation of the double-ended screw and ensuring that the exposed length of the double-ended screw reaches the process requirements in one go.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fixture for fixed-distance installation of double-headed screws for wind turbine blades, characterized in that: The device includes a support member (2), a fixed cylinder (3), a rotating assembly, and a fixed-distance connecting rod (1). The fixed-distance connecting rod (1) is used to connect the support member (2) and the fixed cylinder (3), and one end of the fixed-distance connecting rod (1) is flush with the end face of the support member (2). An installation assembly is rotatably connected to the inner bottom of the fixed cylinder (3). One end of the double-ended screw is inserted into the fixed cylinder (3) and fixed on the installation assembly. The support member (2) can support the other end of the double-ended screw. The rotating assembly is used to drive the installation assembly and the double-ended screw to rotate. The vertical distance between the side of the fixed-distance connecting rod (1) away from the fixed cylinder (3) and the end of the installation assembly is equal to the length of the double-ended screw that needs to be exposed.

2. The wind turbine blade double-headed screw spacing installation fixture according to claim 1, characterized in that: The mounting assembly includes a bearing (4), a fixing member (8), and a limiting rod (9). The inner bottom of the fixing cylinder (3) is rotatably connected to the bearing (4). The fixing member (8) is fixed inside the bearing (4). The limiting rod (9) is provided inside the fixing member (8). The limiting rod (9) matches the end positioning hole of the double-ended screw. The inner hole of the fixing member (8) matches the outer side of the limiting rod (9). After the double-ended screw is inserted into the limiting rod (9), it abuts against the end of the bearing (4). The limiting rod (9) is used to drive the double-ended screw to rotate. The vertical distance between the side of the fixed connecting rod (1) away from the fixing cylinder (3) and the bearing (4) is equal to the length of the double-ended screw that needs to be exposed.

3. The wind turbine blade double-headed screw spacing installation fixture according to claim 2, characterized in that: One end of the limiting rod (9) extends into the fixed cylinder (3), and the other end extends out of the fixed cylinder (3).

4. The wind turbine blade double-headed screw spacing installation fixture according to claim 3, characterized in that: The rotating assembly is an electric pistol drill, and the drill head of the electric pistol drill is connected to the limiting rod (9).

5. The wind turbine blade double-headed screw spacing installation fixture according to claim 3, characterized in that: The rotating assembly uses a sleeve cap (5) and a handle (6). The sleeve cap (5) has a connecting hole that matches the shape of the limiting rod (9). The handle (6) is fixed on the sleeve cap (5).

6. The wind turbine blade double-headed screw spacing installation fixture according to claim 1, characterized in that: The support member (2) is a semi-circular support cylinder.

7. The wind turbine blade double-headed screw spacing installation fixture according to claim 1, characterized in that: The outer end of the support member (2) is provided with a rubber pad (7).

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