A labor-saving device for yawing and stretching a wind turbine generator

Abstract

The utility model discloses a kind of wind turbine yaw stretching operation labor-saving device, including upper frame body, lower frame body, bearing, balancer, stretcher and trundle;The upper frame body is movably mounted on the top of lower frame body by bearing, and constitutes movable type similar I-shaped frame;The balancer is symmetrically installed at the both ends of upper frame body, the hanging ring for being connected with stretcher is equipped on the balancer, the stretcher is vertically hung at the hanging ring and is bolted with wind turbine yaw brake, the trundle has multiple and is arranged at the bottom of lower frame body, for the movement of device, the upper frame body and trundle of the utility model have activity, when using, it can be carried out wind turbine yaw brake bolt installation operation by gently pulling and lifting stretcher;The utility model greatly reduces the labor burden of operating personnel, makes stretcher become convenient in handling and installation operation, not only reduces labor intensity, improves the safety in operation process, and work efficiency has been improved.

Description

Technical Field

[0001] This utility model relates to the technical field of yaw extension operations of wind turbine units, and in particular to a labor-saving device for yaw extension operations of wind turbine units. Background Technology

[0002] In the current process of installing yaw bolts for wind turbines, tensioners are usually used to achieve precise control of bolt preload. In practical applications, the tensioners are operated manually. However, the tensioners are heavy, which can easily cause fatigue for workers and affect work efficiency. They are also inconvenient to handle and install, increasing the difficulty of the operation. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a labor-saving device for yaw stretching operations of wind turbine units. Operators only need to pull or lift the hydraulic stretcher to easily complete the installation operation. After the operation is completed, the stretcher can be pushed to move to the next work point. The entire process does not require excessive physical exertion and effectively reduces labor costs.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: a labor-saving device for yaw extension operation of a wind turbine, comprising an upper frame, a lower frame, bearings, a balancer, an extension device, and casters; the upper frame is movably mounted on the top of the lower frame via bearings, forming a movable I-beam-like frame; the balancer is symmetrically mounted at both ends of the upper frame, and the balancer is provided with a hanging ring for connecting to the extension device; the extension device is vertically suspended at the hanging ring and bolted to the yaw brake of the wind turbine; multiple casters are provided at the bottom of the lower frame for moving the device.

[0005] Furthermore, it includes a counterweight; the counterweight is located at the lower frame and is used to increase the weight of the lower frame.

[0006] Furthermore, the upper frame includes a long horizontal bar, a short vertical bar, and diagonal braces; the top two ends of the long horizontal bar are provided with lifting rings for connecting to the balancer; the short vertical bar is vertically installed at the bottom of the long horizontal bar, and the diagonal braces are arranged between the long horizontal bar and the short vertical bar.

[0007] Furthermore, the lower frame includes a short horizontal bar, a long vertical bar, and a diagonal brace; the long vertical bar is vertically installed on top of the short horizontal bar, and the diagonal brace is disposed between the short horizontal bar and the long vertical bar.

[0008] Furthermore, the casters are three in number.

[0009] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0010] This invention significantly reduces the workload of operators, making the tensioner easier to handle and install. It not only reduces labor intensity and improves safety during operation, but also increases work efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] The present invention will be further described below with reference to specific embodiments.

[0013] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0014] See Figure 1 As shown, the wind turbine yaw stretching operation labor-saving device provided in this embodiment includes an upper frame 1, a lower frame 2, a bearing 3, a balancer 4, a stretcher, casters 5, and a counterweight 6.

[0015] The upper frame 1 is movably mounted on top of the lower frame 2 via bearings 3, forming a movable I-beam-like frame, wherein the upper frame 1 can rotate flexibly; the balancers 4 are symmetrically installed at both ends of the upper frame 1, and the balancers 4 are provided with hanging rings 401 for connecting to the tensioner, the tensioner is vertically suspended at the hanging rings 401 and connected to the yaw brake bolt of the wind turbine; the counterweight 6 is set at the lower frame 2 to increase the weight of the lower frame 2; three casters 5 are set at the bottom of the lower frame 2 for moving the device. Because the upper frame 1 and casters 5 of this device are movable, the installation of the yaw brake bolt of the wind turbine can be carried out by gently pulling and lifting the tensioner.

[0016] The upper frame 1 includes a long horizontal bar 101, a short vertical bar 102, and a diagonal brace 103. The long horizontal bar 101 has hanging rings a at both ends for connection to the balancer 4. The short vertical bar 102 is vertically installed at the bottom of the long horizontal bar 101, and the diagonal brace 103 is located between the long horizontal bar 101 and the short vertical bar 102. The lower frame 2 includes a short horizontal bar 201, a long vertical bar 202, and a diagonal brace 203. The long vertical bar 202 is vertically installed at the top of the short horizontal bar 201, and the diagonal brace 203 is located between the short horizontal bar 201 and the long vertical bar 202.

[0017] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A labor-saving device for yaw extension operation of a wind turbine, characterized in that: The device includes an upper frame, a lower frame, bearings, a balancer, a tensioner, and casters. The upper frame is movably mounted on top of the lower frame via bearings, forming a movable I-beam-like frame. The balancer is symmetrically mounted at both ends of the upper frame, and each balancer has a hanging ring for connecting to the tensioner. The tensioner is vertically suspended at the hanging ring and bolted to the yaw brake of the wind turbine. Multiple casters are located at the bottom of the lower frame for moving the device.

2. The labor-saving device for yaw extension operation of a wind turbine as described in claim 1, characterized in that: Includes a counterweight; the counterweight is located at the lower frame and is used to increase the weight of the lower frame.

3. The labor-saving device for yaw extension operation of a wind turbine as described in claim 1, characterized in that: The upper frame includes a long horizontal bar, a short vertical bar, and diagonal braces; the top two ends of the long horizontal bar are provided with hanging rings for connecting to the balancer; the short vertical bar is installed vertically at the bottom of the long horizontal bar, and the diagonal braces are set between the long horizontal bar and the short vertical bar.

4. The labor-saving device for yaw extension operation of a wind turbine as described in claim 1, characterized in that: The lower frame includes a short horizontal bar, a long vertical bar, and diagonal braces; the long vertical bar is vertically installed on top of the short horizontal bar, and the diagonal braces are located between the short horizontal bar and the long vertical bar.

5. The labor-saving device for yaw extension operation of a wind turbine as described in claim 1, characterized in that: There are three casters.

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