Cable routing process device and method for solving the problem of cable wear at the blade root of wind turbine

Abstract

The present invention discloses a wiring process device and method for solving the problem of cable wear at the blade root of a wind turbine, which belongs to the field of auxiliary equipment of a wind turbine generator set, and includes an installation and fixing part, a wiring bracket, and a bearing, wherein the installation and fixing part, the wiring bracket, and the bearing are fastened together by bolts; the blade root cable is fixed by the wiring bracket, passes through the bearing along the wiring bracket, and the blade root cable is fastened together with the inner ring of the bearing by mutual extrusion between the blade root cables or filling with a protective rubber ring; during the pitch change process, the rotational force of the blade root cable is transferred to the roller of the bearing with a seat, and the cable torque is converted into bearing rotation, and there is no relative displacement between the blade root cables and between the blade root cables and the wiring bracket. The present invention has a simple structure and manufacturing, a reasonable structure and a simple structure and fixed connection method, and can effectively solve the problem of cable wear at the blade root of a wind turbine.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary equipment for wind turbines, and more specifically, to a wiring process device and method for solving the problem of cable wear at the blade root of a wind turbine. Background Art

[0002] Since the 1990s, China's wind power industry has grown from scratch and from small to large, and now the world's largest wind power market has been established. As one of the main renewable energy sources, wind power is a key force in achieving China's "dual carbon" goal. However, due to various factors, the cables at the blade root of some old and worn units are directly connected from the blade root to the electrical control cabinet. During the pitch change process, due to the rotation of the blades, the cables are worn to varying degrees. Especially when an ice removal system is added at the blade root, the amount of cables increases significantly, and the previous connection method causes serious cable wear, posing a safety hazard.

[0003] In view of this, it is obviously important to design a wiring process device for solving the problem of cable wear at the blade root of a wind turbine to solve the problems of cable wear and wiring at the blade root. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a wiring process device and method for solving the problem of cable wear at the blade root of a wind turbine, which has simple structure manufacturing, reasonable structural stress, simple fixed connection method of the structure, strong universality, and can effectively solve the problem of cable wear at the blade root of a wind turbine, etc.

[0005] The purpose of the present invention is achieved through the following solutions:

[0006] A wiring process device for solving the problem of cable wear at the blade root of a wind turbine, characterized in that it includes an installation and fixing part, a wiring bracket, and a bearing. The installation and fixing part, the wiring bracket, and the bearing are fastened together by bolts; the blade root cable is fixed through the wiring bracket, passes through the bearing along the wiring bracket, and the blade root cables are fastened to the inner ring of the bearing by mutual extrusion between the blade root cables or by using protective rubber rings to fill; during the pitch change process, the rotational force of the blade root cable is transferred to the roller of the bearing with a housing, and the cable torque is converted into the rotation of the bearing, and there is no relative displacement between the blade root cables and between the blade root cable and the wiring bracket, thus solving the problem of cable wear at the blade root of a wind turbine.

[0007] Further, the installation and fixing part includes a blade root partition board, and a plurality of bolt holes are opened in the blade root partition board. The blade root partition board and the wiring bracket are fixedly connected by bolts.

[0008] Further, the wiring bracket is a metal structural steel part, in a shape of a capital "J", and a plurality of bolt holes are opened at the bottom of the "J" shape for connecting with the blade root partition board to play a role in fixing the bracket.

[0009] Furthermore, an L-shaped bracket is welded with structural steel on the top of the wiring bracket, and a bearing fixing plate with a seat is welded on the end face of the L-shaped bracket.

[0010] Furthermore, the seat bearing and the wiring bracket are fastened together by bolts.

[0011] Furthermore, a plurality of waist-shaped holes are opened along the side of the "X" shape for fixing blade root cables.

[0012] Furthermore, the "X"-shaped structure plays the role of crossing the blade root manhole and raising the cable routing, so that the cable is closer to the control cabinet and the margin of the cable hanging state is reduced.

[0013] Furthermore, the bearing comprises a seated bearing.

[0014] A method for a wiring process device for solving the problem of cable wear at the blade root of a wind turbine generator, based on any of the wiring process devices for solving the problem of cable wear at the blade root of a wind turbine generator as described above, further comprising the following steps:

[0015] Step 1: Install the bearing on the cable bracket;

[0016] Step 2: Install the cable bracket and bearing together on the blade root partition;

[0017] Step 3: Fix the blade root cable along the wiring bracket;

[0018] Step 4: Pass the blade root cable through the inner diameter of the bearing and secure it.

[0019] Step 5: Connect the blade root cable to the control cabinet.

[0020] The beneficial effects of the present invention include:

[0021] The structure of the invention is easy to manufacture, has reasonable structural force, and has a simple structural fixing connection method; the problem of cable wear at the blade root of a wind turbine can be effectively solved by the invention.

[0022] The structure of the present invention has strong universality and can meet the use scenarios of blade root cable wear prevention of different models by changing the installation hole spacing and the size of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 Three views of an embodiment of the present invention;

[0026] Figure 3 It is a schematic diagram of an overall installation example of an embodiment of the present invention;

[0027] In the figure, 1-blade root partition, 2-wiring bracket, 3-bearing, 4-blade root cable. DETAILED DESCRIPTION

[0028] All features disclosed in all embodiments in this specification, or steps in all methods or processes implicitly disclosed, except for mutually exclusive features and / or steps, can be combined and / or expanded or replaced in any manner.

[0029] In the description of the present invention, it should be clarified that the terms "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are merely for the convenience of describing the present invention. They do not mean that the devices or elements referred to must have a specific direction or position and therefore cannot be understood as limitations on the present invention.

[0030] The embodiment of the present invention provides a wiring process device for solving the problem of cable wear at the root of a wind turbine blade. Figure 1 , Figure 2 As shown. The process device includes three parts, namely, the installation and fixing part, the wiring bracket part, and the bearing seat part. The three parts are fastened together by bolts. The installation and fixing part is the blade root partition 1, which has a certain number of bolt holes. The blade root partition 1 is fastened to the wiring bracket 2 by bolts. The wiring bracket part is a metal structural steel part in the shape of a "J". A certain number of bolt holes are opened at the bottom of the "J" shape, which is used to connect with the blade root partition 1 and plays the role of a fixed bracket. A certain number of waist-shaped holes are opened along the side of the "J" shape, which is used to fix the blade root cable 4. The "J"-shaped structure plays the role of crossing the blade root manhole and raising the cable routing, so that the cable is closer to the control cabinet and reduces the margin of the cable in the suspended state. The top of the wiring bracket is welded with an L-shaped bracket with structural steel, and the end face of the L-shaped bracket is welded with a bearing seat fixing plate. The bearing seat and the wiring bracket are fastened by bolts. The blade root cable is fixed by a routing bracket and passes through the seated bearing along the routing bracket. The cable and the inner ring of the seated bearing are fastened together through mutual extrusion between the cables or filling with protective rubber rings. During the pitch change process, the cable torque is converted into bearing rotation. There is no relative displacement between cables and between cables and brackets, reducing fatigue and wear of the cable itself.

[0031] In a specific implementation, the wiring bracket 2 and the blade root partition 1, and the wiring bracket 2 and the bearing 3 are connected by bolts. Among them, the bearing 3 is a seat bearing.

[0032] In a specific embodiment, the root cable is fixed to the inner ring of the pedestal bearing, and the torque of the root cable is converted into the rotation of the bearing to prevent frictional wear between the root cables and fatigue wear of the cables themselves.

[0033] When the embodiment of the present invention is actually installed, it can be carried out as shown in Figure 3 and includes the following steps:

[0034] Step 1: Install the bearing 3 on the cable routing bracket 2;

[0035] Step 2: Install the cable routing bracket 2 and the bearing 3 together on the root partition 1;

[0036] Step 3: Fix the root cable 4 along the cable routing bracket 2;

[0037] Step 4: Pass the root cable 4 through the inner diameter of the bearing 3 and fix it.

[0038] Step 5: Connect the root cable 4 to the control cabinet.

[0039] Embodiment 1

[0040] A cable routing process device for solving the problem of root cable wear of a wind turbine, including an installation and fixing part, a cable routing bracket, and a bearing. The installation and fixing part, the cable routing bracket, and the bearing are fastened together by bolts;

[0041] The root cable is fixed through the cable routing bracket, passes through the bearing along the cable routing bracket, and the root cables are fastened to the inner ring of the bearing as a whole by mutual extrusion between the root cables or by using protective rubber rings to fill;

[0042] During the pitch change process, the rotational force of the root cable is transferred to the rollers of the pedestal bearing, and the cable torque is converted into the rotation of the bearing. There is no relative displacement between the root cables and between the root cable and the cable routing bracket, thus solving the problem of root cable wear of the wind turbine.

[0043] Embodiment 2

[0044] On the basis of Embodiment 1, the installation and fixing part includes a root partition, and a plurality of bolt holes are opened in the root partition. The root partition and the cable routing bracket are fastened and connected by bolts.

[0045] Embodiment 3

[0046] On the basis of Embodiment 1, the cable routing bracket is a metal structural steel part, in a shape of a capital "J", and a plurality of bolt holes are opened at the bottom of the "J" shape for connecting with the root partition to play the role of fixing the bracket.

[0047] Embodiment 4

[0048] On the basis of Example 1, an L-shaped bracket is welded with structural steel on the top of the wiring bracket, and a bearing fixing plate with a seat is welded on the end face of the L-shaped bracket.

[0049] Example 5

[0050] Based on Example 1, the seat bearing and the wiring bracket are fastened together by bolts.

[0051] Example 6

[0052] On the basis of Example 3, a plurality of waist-shaped holes are opened along the side of the "J" shape for fixing blade root cables.

[0053] Example 7

[0054] On the basis of Example 3, the "X"-shaped structure plays the role of crossing the blade root manhole and raising the cable routing, so that the cable is closer to the control cabinet and the margin of the cable hanging state is reduced.

[0055] Example 8

[0056] Based on Example 1, the bearing includes a seated bearing.

[0057] Example 9

[0058] A method for a wiring process device for solving the problem of cable wear at the blade root of a wind turbine generator, based on the wiring process device for solving the problem of cable wear at the blade root of a wind turbine generator as described in any one of Embodiments 1 to 9, further comprising the following steps:

[0059] Step 1: Install the bearing on the cable bracket;

[0060] Step 2: Install the cable bracket and bearing together on the blade root partition;

[0061] Step 3: Fix the blade root cable along the wiring bracket;

[0062] Step 4: Pass the blade root cable through the inner diameter of the bearing and secure it.

[0063] Step 5: Connect the blade root cable to the control cabinet.

[0064] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

[0065] The above technical solution is only one implementation mode of the present invention. For those skilled in the art, it is easy to make various types of improvements or modifications based on the application methods and principles disclosed in the present invention, and it is not limited to the method described in the above specific implementation mode of the present invention. Therefore, the method described above is only preferred and does not have a restrictive meaning.

[0066] In addition to the above examples, those skilled in the art may obtain other embodiments based on the above disclosure or by using the knowledge or technology in the relevant field to make changes. The features of each embodiment may be interchangeable or replaced. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A wiring process device for solving the problem of cable wear at the root of a wind turbine blade, characterized in that: It includes an installation and fixing part, a wiring bracket, and a bearing, wherein the installation and fixing part, the wiring bracket, and the bearing are fastened together by bolts; The blade root cable is fixed by a wiring bracket and passes through the bearing along the wiring bracket. The blade root cable is fastened to the inner ring of the bearing as a whole by mutual extrusion between the blade root cables or filling with protective rubber rings. During the pitch change process, the rotational force of the blade root cable is transferred to the seated bearing roller, and the cable torque is converted into bearing rotation. There is no relative displacement between the blade root cables and between the blade root cables and the wiring bracket, thus solving the problem of blade root cable wear in wind turbines. The installation and fixing part includes a blade root partition, a plurality of bolt holes are opened on the blade root partition, and the blade root partition is fastened to the wiring bracket by bolts; The wiring bracket is a metal structural steel part in the shape of a letter "J". A plurality of bolt holes are opened at the bottom of the letter "J" for connecting with the blade root partition to play the role of fixing the bracket; The top of the wiring bracket is welded with an L-shaped bracket made of structural steel, and the end face of the L-shaped bracket is welded with a bearing fixing plate with a seat; The seat bearing and the wiring bracket are fastened and connected by bolts; A plurality of waist-shaped holes are provided along the side of the "J" shape for fixing blade root cables; The "X"-shaped structure plays the role of crossing the blade root manhole and raising the cable routing, so that the cable is closer to the control cabinet and the margin of the cable in the suspended state is reduced.

2. The wiring process device for solving the problem of cable wear at the blade root of a wind turbine according to claim 1 is characterized in that: The bearing comprises a seated bearing.

3. A method for a wiring process device to solve the problem of cable wear at the root of a wind turbine blade, characterized in that: The wiring process device for solving the problem of cable wear at the blade root of a wind turbine according to any one of claims 1 to 2 further comprises the following steps: Step 1: Install the bearing on the cable bracket; Step 2: Install the cable bracket and bearing together on the blade root partition; Step 3: Fix the blade root cable along the wiring bracket; Step 4: Pass the blade root cable through the inner diameter of the bearing and secure it; Step 5: Connect the blade root cable to the control cabinet.

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