Working anchor plate capable of intelligently feeding back stress

Abstract

The utility model provides a working anchor plate capable of intelligently feeding back stress, which comprises an anchor plate body and a bearing body fixed at the end part of the anchor plate body, and a stress sensing element is arranged in the bearing body. The sensor further comprises a coil sheath surrounding the periphery of the bearing body, and data lines of the stress sensing elements are gathered in the coil sheath and then led out through a connector. The beneficial effects of the utility model are that the device can directly collect the data of the strain gauge through an external reading device, the detection process is simple and convenient, the problem of low detection efficiency in a stress state is solved, and the cost is reduced. And the position of the anchorage device cannot be adjusted during detection, so that the anchoring performance of the anchorage device after the steel strand is tensioned cannot be negatively influenced. And continuous prestress monitoring in the whole life cycle of the wind generating set can be realized, and the safety of the wind generating set is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of steel strand anchoring, and in particular relates to a working anchor plate with intelligent feedback stress. Background Technology

[0002] Wind energy is a clean and pollution-free renewable energy source that has been used by people for a long time. Wind power generation is very environmentally friendly, and wind energy reserves are huge, so it is receiving increasing attention from countries around the world.

[0003] The equipment required for wind power generation is called a wind turbine generator set. These wind turbine generator sets can generally be divided into three parts: the wind rotor (including the tail rudder), the generator, and the tower. Currently, most wind turbine generator sets use concrete towers, which are tensioned vertically using steel strands. The stability of this force is a key factor in ensuring the healthy operation of the entire wind turbine generator set.

[0004] During the construction and operation of wind turbine generators, the tension (cable force) of the steel strands needs to be tested to ensure that the tension meets the requirements. Existing testing methods mainly use the jack reverse tension method, which is extremely inefficient and can affect the anchorage of the anchorage during the testing process. This method is also very expensive. Therefore, a new method or tensioning structure is needed to solve the problems of low testing efficiency and high cost. Summary of the Invention

[0005] In view of this, the present invention aims to propose a working anchor plate with intelligent feedback stress.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A working anchor plate with intelligent feedback stress includes an anchor plate body and a support body fixed to the end of the anchor plate body, wherein a stress sensing element is disposed inside the support body.

[0008] Furthermore, it also includes a coil sheath surrounding the periphery of the carrier, and the data lines of the stress sensing element are gathered inside the coil sheath and then led out through a connector.

[0009] Furthermore, the anchor plate body is circular with a through hole in the middle, the bearing body is an annular structure, and the stress sensing element is evenly distributed in the annular structure.

[0010] Furthermore, the anchor plate body is circular with several frustum-shaped anchor holes in the middle, the bearing body is an annular structure, the bearing body does not cover the anchor holes, and the stress sensing elements are evenly distributed in the annular structure; the diameter of the bearing body is equal to the diameter of the anchor plate, and the thickness of the bearing body is less than the thickness of the anchor plate.

[0011] Furthermore, the inner side of the coil sheath has a wire groove.

[0012] Furthermore, the carrier and coil sheath are made of metal.

[0013] Furthermore, the load-bearing body is made of high-strength alloy structural steel.

[0014] Furthermore, the stress sensing element is a strain gauge sensor or a steel wire sensor.

[0015] Furthermore, the connector is a waterproof metal cable connector.

[0016] Furthermore, the anchor plate body is fixed to the bearing body by fastening screws.

[0017] Furthermore, the stress-sensing elements are embedded inside the carrier, with a quantity of 4-8 and a depth of 20-50mm.

[0018] The advantages and positive effects of this invention are as follows: This invention can directly collect strain gauge data through external reading devices, making the testing process simple and convenient, solving the problem of low testing efficiency under stress, and reducing costs. Furthermore, the anchor position does not need to be adjusted during testing, thus not negatively impacting the anchoring performance of the anchors after the steel strands are tensioned. It can also achieve continuous prestress monitoring throughout the entire life cycle of the wind turbine generator, ensuring the safety of the wind turbine generator. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 This is the front view of this utility model;

[0023] Figure 4 This is a cross-sectional view of the present invention;

[0024] Figure 5 This is a cross-sectional view of the present invention when it includes steel strands.

[0025] In the picture:

[0026] 1. Anchor plate body; 2. Bearing body; 3. Stress sensing element; 4. Fastening screws

[0027] 5. Coil sheath; 6. Connector; 7. Steel strand; 8. Clamping plate.

[0028] 9. Load-bearing structure Detailed Implementation

[0029] 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 scope of protection of the present utility model. In the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the structure of the device will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and height should be included.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] like Figures 1 to 5 As shown, this utility model includes a circular anchor plate body 1 and an annular support body 2 (made of high-strength alloy structural steel) fixed to the end of the anchor plate body 1. Stress sensing elements 3 are uniformly arranged inside the support body 2. The stress sensing elements 3 are strain gauge sensors (YL-ZN-GZY-0137 type sensing elements). It also includes a metal coil sheath 5 surrounding the support body 1. The data lines of the stress sensing elements 3 are collected in a groove inside the coil sheath 5 and then led out through a connector 6. The connector 6 is a waterproof metal cable connector to protect the data line transmission from external interference.

[0035] During operation, the product is installed normally. The working anchor plate 1 with the bearing body 2 is installed and fixed close to the bearing 9. The vertically placed prestressed steel strand 7 passes through the through hole of the anchor plate body 1 and transmits the force value to the anchor plate body 1 through the clamp 8. The force of the anchor plate body 1 is transmitted to the bearing body 2. At this time, the bearing body 2 will undergo a slight deformation. This deformation will cause the stress sensing element 3 to strain. The strain of the stress sensing element 3 is transmitted to the external reading device through the data line, so that the corresponding force parameters can be obtained.

[0036] The anchor plate body 1 is fixed to the bearing body 2 by fastening screws 4. This connects the anchor plate body 1 and the bearing body 2 into one unit, making it easy to disassemble and assemble.

[0037] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A smart feedback stress working anchor plate, characterized in that: It includes an anchor plate body (1) and a bearing (2) fixed to the end of the anchor plate body (1), wherein a stress sensing element (3) is provided inside the bearing (2). It also includes a coil sheath (5) surrounding the outer periphery of the carrier (2), the data lines of the stress sensing element (3) are gathered in the coil sheath (5) and then led out through the connector (6); The anchor plate body (1) is circular plate-shaped with several frustum-shaped anchor holes in the middle. The bearing body (2) is a ring structure. The bearing body does not cover the anchor holes. The stress sensing element (3) is evenly distributed in the ring structure. The diameter of the bearing body is equal to the diameter of the anchor plate, and the thickness of the bearing body is less than the thickness of the anchor plate; The stress sensing element (3) is a strain gauge sensor or a steel wire sensor; The stress sensing element (3) is embedded inside the carrier (2), with a quantity of 4-8 and a depth of 20-50mm.

2. The smart feedback stressed working anchor plate of claim 1, wherein: The inner side of the coil sheath (5) has a wire groove.

3. The smart feedback stressed working anchor plate of claim 1, wherein: The carrier (2) and the coil sheath (5) are made of metal.

4. The smart feedback stressed working anchor plate of claim 3, wherein: The load-bearing body (2) is made of high-strength alloy structural steel.

5. The smart feedback stressed working anchor plate of claim 1, wherein: The connector (6) is a waterproof connector for metal cables.

6. The smart feedback stressed working anchor plate of claim 1, wherein: The anchor plate body (1) is fixed to the bearing body (2) by fastening screws (4).

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