Broken wire taking tool for variable pitch system of wind turbine generator
By designing the wire-breaking tooling for the pitch system of the wind turbine unit, using the combination of installation components and wire-breaking components, the problem of difficulty in removing the interrupted wire of the wind turbine unit is solved, and the rapid and stable removal of the drill bit is achieved to reduce fault shutdown and Cost of use.
Patent Information
- Application Number
- CN202420923848.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The high-strength engineering bolts of blades and pitch bearings, pitch bearings and wheel hubs in wind turbines are prone to break during operation, making it difficult to remove the broken wires, difficult to handle existing tools, and improper operation or equipment failure may cause the drill bit to break or get stuck. On the broken wire surface, the unit failure occurs.
A wire-breaking tool for the pitch-changing system of the wind turbine unit is designed, including the pitch-changing bearing bolt seat and sleeve, and an internal installation and breaking mechanism is provided, including a processing boss, a first open-end wrench, a threaded rod, a connecting column, and a clamp. A tight table and a second open wrench are used to stably and conveniently remove the drill bit from the broken wire surface.
Through this tooling, the drill bit can be quickly and stably removed from the broken wire surface, reducing unit failure downtime, increasing power generation, and reducing usage costs, making it easier for staff to operate.
Smart Images
Figure CN222155457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of broken wire removal tooling, in particular to a broken wire removal tooling for a wind turbine pitch control system. Background Art
[0002] Wind power is part of the current green energy. Wind turbines are made up of various components that are closely connected. The most critical wind turbine blades are connected to the pitch bearings through high-strength engineering bolts. The pitch bearings are also connected to the wind turbine hub through high-strength engineering bolts to achieve mechanical transmission.
[0003] During the operation of the wind turbine, the high-strength engineering bolts connecting the blades and the pitch bearings, and the pitch bearings and the hubs are impacted by alternating loads, which occasionally cause the connecting bolts to break. The broken bolts will damage the equipment in the hub and cause the wind turbine resistance failure. It is very difficult to remove the broken wire after the bolts in the wind turbine pitch bearings are broken, because the broken wire surface of the bolt is about 28cm deep in the pitch bearing bolt hole, and common tools cannot be used. A special tooling for removing broken wires from the wind turbine is required. However, in the process of removing the broken wires, it is necessary to first punch a hole on the broken wire surface and then remove it by reverse threading. Due to problems such as improper operation by personnel or equipment failure, the drilling drill bit may break or get stuck on the broken wire surface. If the drill bit breaks or gets stuck on the broken wire surface, the broken wire removal work cannot be performed. The drill bit that is broken or stuck on the broken wire surface needs to be removed before the broken wire can be extracted. It is difficult to remove the drill bit from the broken wire surface with common tools. Therefore, it is necessary to improve a broken wire removal tooling for the wind turbine pitch system to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a broken wire removal tool for a wind turbine pitch control system to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a broken wire removal tool for a wind turbine pitch system, comprising a pitch bearing bolt seat and a sleeve, wherein the pitch bearing bolt seat has a bolt broken wire threadedly connected thereto, a drill bit broken wire is arranged inside the bolt broken wire, and a broken wire removal mechanism is arranged inside the sleeve;
[0006] The installation and broken wire removal mechanism comprises an installation component and a broken wire removal component. The broken wire removal component is arranged inside the sleeve, and the installation component is arranged on the top of the sleeve.
[0007] Preferably, the mounting assembly includes a machined boss, the machined boss is fixedly connected to the top of the sleeve, a gasket is movably connected to the top of the machined boss, and a first open-end wrench is movably connected to the outside of the machined boss, so that the device can speed up the removal of the drill bit stuck in the broken thread surface of the bearing bolt, reduce unit shutdown due to failure, and increase power generation.
[0008] Preferably, a groove is provided at a position corresponding to the machining boss and the first open-end wrench, and the first open-end wrench is in contact with the machining boss, and the gasket is in contact with the machining boss, so that the use process is more stable.
[0009] Preferably, the broken wire removal assembly includes a threaded rod, the threaded rod is threadedly connected to the inside of the processing boss, the bottom of the threaded rod is fixedly connected to a connecting column, the bottom of the connecting column is fixedly connected to a clamping platform, the outside of the threaded rod is threadedly connected to a nut, and the outside of the nut is movably connected to a second open-end wrench, which is convenient for making up for the shortcomings of the existing broken wire removal tooling and can replace it, reducing the cost of use while making it convenient for staff to carry and use.
[0010] Preferably, the nut contacts the gasket, the clamping platform contacts the sleeve, grooves are provided at positions corresponding to the sleeve and the connecting column, and the connecting column is slidably connected inside the groove, so as to make the clamping process more stable.
[0011] Preferably, the hole diameter of the pitch bearing bolt seat is 4 cm, the depth of the pitch bearing bolt seat is 28 cm, the diameter of the drill bit broken wire is 8 mm, the length of the drill bit broken wire is 100 mm, and the distance between the tail of the drill bit broken wire and the top of the pitch bearing bolt seat is 20 cm, which is convenient for all work similar to removing the drill bit from the broken wire surface.
[0012] Compared with the prior art, the utility model provides a broken wire removal tool for a wind turbine pitch control system, which has the following beneficial effects:
[0013] 1. The wind turbine variable pitch system uses a broken wire removal tool. Through the provided installation assembly, during use, the processing boss is limited by the provided first open-end wrench, so that the device can speed up the removal time of the drill bit stuck on the broken wire surface of the bearing bolt, reduce the unit failure shutdown, and increase the power generation.
[0014] 2. The wind turbine variable pitch system uses a broken wire removal tool. Through the provided broken wire removal assembly, during use, the nut is moved by holding the provided second open-end wrench to realize the movement of the connecting column, which is convenient for making up for the shortcomings of the existing broken wire removal tool and can replace it, thereby reducing the use cost and making it convenient for the staff to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:
[0016] Figure 1This is a schematic diagram of the front structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the installation assembly structure of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the wire breaking component of the utility model.
[0020] In the figure: 1. pitch bearing bolt seat; 2. sleeve; 3. bolt broken wire; 4. drill bit broken wire; 5. installation of broken wire removal mechanism; 51. installation assembly; 511. processing boss; 512. gasket; 513. first open-end wrench; 52. broken wire removal assembly; 521. threaded rod; 522. connecting column; 523. clamping platform; 524. nut; 525. second open-end wrench. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] Embodiment 1:
[0024] See also Figure 1-3 The utility model provides a technical solution: a broken wire removal tool for a wind turbine pitch system, comprising a pitch bearing bolt seat 1 and a sleeve 2, wherein the pitch bearing bolt seat 1 is internally threaded with a bolt broken wire 3, a drill bit broken wire 4 is arranged inside the bolt broken wire 3, and a broken wire removal installation mechanism 5 is arranged inside the sleeve 2;
[0025] The broken wire removal mechanism 5 comprises a mounting assembly 51 and a broken wire removal assembly 52 . The broken wire removal assembly 52 is arranged inside the sleeve 2 , and the mounting assembly 51 is arranged on the top of the sleeve 2 .
[0026] Furthermore, the mounting assembly 51 includes a processed boss 511, which is fixedly connected to the top of the sleeve 2, and a gasket 512 is movably connected to the top of the processed boss 511, and a first open-end wrench 513 is movably connected to the outside of the processed boss 511, so that the device can speed up the removal of the drill bit stuck in the broken thread surface of the bearing bolt, reduce unit failure shutdown, and increase power generation.
[0027] Furthermore, grooves are provided at positions corresponding to the machining boss 511 and the first open-end wrench 513 , and the first open-end wrench 513 contacts the machining boss 511 , and the gasket 512 contacts the machining boss 511 , so that the use process is more stable.
[0028] Embodiment 2:
[0029] See also Figure 4 , and combined with Example 1, it is further obtained that the broken wire removal component 52 includes a threaded rod 521, the threaded rod 521 is threadedly connected to the inside of the processing boss 511, the bottom of the threaded rod 521 is fixedly connected to a connecting column 522, the bottom of the connecting column 522 is fixedly connected to a clamping platform 523, the outer surface of the threaded rod 521 is threadedly connected to a nut 524, and the outer side of the nut 524 is movably connected to a second open-end wrench 525, which is convenient to make up for the shortcomings of the existing broken wire removal tooling and can replace it, reducing the use cost while being convenient for staff to carry and use.
[0030] Furthermore, the nut 524 contacts the gasket 512, the clamping platform 523 contacts the sleeve 2, grooves are provided at corresponding positions of the sleeve 2 and the connecting column 522, and the connecting column 522 is slidably connected inside the groove, so as to make the clamping process more stable.
[0031] Furthermore, the aperture of the pitch bearing bolt seat 1 is 4 cm, the depth of the pitch bearing bolt seat 1 is 28 cm, the diameter of the drill wire 4 is 8 mm, the length of the drill wire 4 is 100 mm, and the distance between the tail of the drill wire 4 and the top of the pitch bearing bolt seat 1 is 20 cm, which is convenient for all work similar to removing the drill bit from the broken wire surface.
[0032] During actual operation, when this device is used, when a bolt wire 3 breaks inside the bolt seat 1 of the wind turbine pitch bearing and results in a drill wire breakage 4, the sleeve 2 is placed at a specified position, the drill wire breakage 4 is limited by the provided clamping platform 523, the machining boss 511 is limited by the provided first open-end wrench 513, and the machining boss 511 is connected to the provided threaded rod 521. The staff holds the first open-end wrench 513 to limit the position of the machining boss 511, thereby limiting the position of the sleeve 2, and then holds the second open-end wrench 525 to move the nut 524, thereby moving the connecting column 522, thereby moving the clamping platform 523, and clamping the drill wire breakage 4 by the clamping platform 523, and then removing the drill wire breakage 4 by reversing or knocking.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
Claims
1. A broken wire removal tool for a wind turbine pitch system, comprising a pitch bearing bolt seat (1) and a sleeve (2), characterized in that: The pitch bearing bolt seat (1) is internally threadedly connected with a bolt breaking wire (3), the bolt breaking wire (3) is internally provided with a drill breaking wire (4), and the sleeve (2) is internally provided with a mechanism (5) for installing and removing the breaking wire; The broken wire removal installation mechanism (5) comprises a mounting assembly (51) and a broken wire removal assembly (52); the broken wire removal assembly (52) is arranged inside the sleeve (2), and the mounting assembly (51) is arranged on the top of the sleeve (2).
2. The broken wire removal tool for a wind turbine pitch control system according to claim 1, characterized in that: The mounting assembly (51) comprises a machining boss (511), the machining boss (511) is fixedly connected to the top of the sleeve (2), a gasket (512) is movably connected to the top of the machining boss (511), and a first open-end wrench (513) is movably connected to the outside of the machining boss (511).
3. The broken wire removal tool for a wind turbine pitch control system according to claim 2, characterized in that: The machining boss (511) and the first open-end wrench (513) are provided with grooves at positions corresponding to the machining boss (511), and the first open-end wrench (513) is in contact with the machining boss (511), and the gasket (512) is in contact with the machining boss (511).
4. The broken wire removal tool for a wind turbine pitch control system according to claim 2, characterized in that: The broken wire removal assembly (52) comprises a threaded rod (521), wherein the threaded rod (521) is threadedly connected to the inside of the processing boss (511), a connecting column (522) is fixedly connected to the bottom of the threaded rod (521), a clamping platform (523) is fixedly connected to the bottom of the connecting column (522), a nut (524) is threadedly connected to the outside of the threaded rod (521), and a second open-end wrench (525) is movably connected to the outside of the nut (524).
5. The broken wire removal tool for a wind turbine pitch control system according to claim 4, characterized in that: The nut (524) contacts the gasket (512), the clamping platform (523) contacts the sleeve (2), grooves are provided at corresponding positions of the sleeve (2) and the connecting column (522), and the connecting column (522) is slidably connected inside the groove.
6. The broken wire removal tool for a wind turbine pitch control system according to claim 1, characterized in that: The hole diameter of the pitch bearing bolt seat (1) is 4 cm, the depth of the pitch bearing bolt seat (1) is 28 cm, the diameter of the drill bit broken wire (4) is 8 mm, the length of the drill bit broken wire (4) is 100 mm, and the distance between the tail of the drill bit broken wire (4) and the top of the pitch bearing bolt seat (1) is 20 cm.