Positioning device for tower drum connection

Abstract

The utility model provides a positioning device for tower drum connection, which comprises an upper connecting piece and a lower connecting piece, and the upper connecting piece and the lower connecting piece are connected in a clamping way; the lower connecting piece comprises a lower shell sleeve and a pin structure arranged in the lower shell sleeve, the upper portion of the pin structure is an arc-shaped connector, and an annular groove is formed in the middle of the arc-shaped connector. The upper connecting piece comprises an upper shell sleeve, a plurality of circumferentially distributed hook teeth are arranged on the end face of the upper shell sleeve, and the hook teeth are matched with the annular groove; the upper shell is embedded in the through hole of the upper section of tower drum in a sleeved mode, the lower shell is embedded in the lower section of tower drum in a sleeved mode, the upper connecting piece and the lower connecting piece are self-locked through meshing of the hook teeth and the annular grooves, and the upper section of tower drum and the lower section of tower drum are positioned. The steel cone has good mechanical strength and stability, the positioning and connecting efficiency of the tower drum can be effectively improved in the actual construction process, and the problem that a connector is difficult to connect due to errors when the steel cone is used is solved.

Description

Technical Field

[0001] The utility model belongs to the field of positioning devices, and in particular relates to a positioning device for tower tube connection. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] With the large-scale development of the wind power industry, ultra-high wind turbines have been widely developed and popularized, and they mainly play a supporting role in wind turbine generator sets. The existing wind turbine tower adopts a method of prefabricated tower segments, which are divided into multiple sections and then assembled. Therefore, the connection and installation of the tower segments directly affect the stability and strength of the wind turbine tower.

[0004] When installing a wind turbine tower, it is necessary to use positioning pins to position the hoisted wind turbine tower. Traditional positioning pins are generally made of steel materials into a conical structure, and the steel cone is directly connected to the embedded parts in the tower. This approach may cause the following problems: the material is hard, and stress concentration is prone to occur during operation; it is difficult to connect when there is a slight manufacturing deviation or positioning deviation, so it is necessary to ensure that there is sufficient free deformation at the joint. Summary of the invention

[0005] In order to solve the above problems, the utility model proposes a positioning device for tower connection. The utility model adopts spherical polyvinyl chloride material, has good mechanical strength and stability, can more effectively improve the efficiency of tower positioning connection in the actual construction process, and solves the problem that the joint is difficult to connect due to errors when using steel cones.

[0006] According to some embodiments, the utility model adopts the following technical solutions:

[0007] A tower connection positioning device comprises an upper connecting piece and a lower connecting piece, wherein the upper connecting piece and the lower connecting piece are clamped together;

[0008] The lower connecting member comprises a lower outer shell and a pin structure arranged in the lower outer shell, the upper part of the pin structure is an arc-shaped connecting head, and the middle part of the arc-shaped connecting head is provided with an annular groove;

[0009] The upper connecting member comprises an upper outer shell, and a plurality of hook teeth distributed circumferentially are arranged on the end surface of the upper outer shell, and the hook teeth are adapted to the annular groove;

[0010] The upper outer shell is embedded in the through hole of the upper tower section, and the lower outer shell is embedded in the lower tower section. Through the engagement of the hook teeth and the annular groove, the upper connecting member and the lower connecting member are self-locked, and the upper and lower tower sections are positioned.

[0011] As an optional implementation, the upper end of the pin structure is an arc-shaped connector, and the lower end is provided with a columnar structure, and the arc-shaped connector and the columnar structure are connected.

[0012] As a further embodiment, the columnar structure is arranged inside the lower outer shell.

[0013] As a further embodiment, a cushion layer is provided between the columnar structure and the inner edge of the lower outer shell.

[0014] As an optional embodiment, the annular groove of the pin structure is exposed outside the lower outer shell.

[0015] As an optional implementation, the upper connecting member and the lower connecting member are coaxially arranged.

[0016] As an optional implementation, the arc-shaped connector is made of polyvinyl chloride and has a certain elasticity / flexibility.

[0017] As an optional implementation, a guide surface is provided at the lower end of the hook tooth, and the guide surface has a certain inclination, and the inclination direction is inclined toward the inner part of the upper outer shell.

[0018] As an optional implementation, the hook teeth are made of polyvinyl chloride and have a certain flexibility.

[0019] As an optional implementation, the interior of the upper outer shell is an arc-shaped concave surface, which is compatible with the arc-shaped connector.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The connector of the utility model is made of spherical polyvinyl chloride material, which has good mechanical strength and stability. In the actual construction process, it will more effectively improve the efficiency of tower positioning connection and solve the problem of difficult access to the joint due to errors when using steel cones. And because of the use of polyvinyl chloride material, there is no need to worry about the positioning device rusting. At the same time, the hook teeth are made of polyvinyl chloride material, and the lower end surface has a guide surface. Both have a certain flexibility. During the plug-in process, they can produce a certain deformation and quickly connect together. The annular groove limits the upper end surface of the hook teeth to ensure stable positioning.

[0022] The hook teeth of the neck functional area and the upper outer shell form a self-locking structure, which, in conjunction with the steel core turntable, can achieve smoother and more stable rotation when the tower rotates, which is beneficial to improving the efficiency of positioning and connection.

[0023] The existence of the cushion structure provides the device with sufficient tolerance space for errors, and can enable the structure to be better connected up and down when errors occur during connection.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0026] Figure 1 is a schematic diagram of the overall structure of a spherical positioning device in an embodiment;

[0027] Figure 2 is a schematic diagram of the structure of an upper outer shell in an embodiment;

[0028] Figure 3 is a schematic diagram of the pin structure in an embodiment;

[0029] Figure 4 A main view when in use in one embodiment;

[0030] Among them, 1. arc-shaped connecting head, 2. neck functional area, 3. pin structure, 4. cushion structure, 5. upper outer shell, 6. hook teeth, 7. lower outer shell. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other.

[0035] Embodiment 1

[0036] like Figure 1 As shown, a tower connection positioning device comprises an upper connecting piece and a lower connecting piece, wherein the upper connecting piece and the lower connecting piece are clamped together;

[0037] The lower connecting member comprises a lower outer shell 7 and a pin structure 3 arranged in the lower outer shell 7, the upper part of the pin structure 3 is an arc-shaped connecting head 1, and the middle part of the arc-shaped connecting head 1 is provided with an annular groove;

[0038] The upper connecting member comprises an upper outer shell 5, on the end surface of which a plurality of hook teeth 6 distributed circumferentially are arranged, and the hook teeth 6 are adapted to the annular groove;

[0039] The upper outer shell 5 is buried in the through hole of the upper tower section, and the lower outer shell 7 is buried in the lower tower section. Through the engagement of the hook teeth 6 and the annular groove, the upper connecting member and the lower connecting member are self-locked, and the upper and lower tower sections are positioned.

[0040] In this embodiment, the arc connector 1 can be a hemispherical connector or a spherical connector, and its material is polyvinyl chloride.

[0041] The annular groove constitutes a neck functional area 2, and the neck functional area 2 is arranged at the lower part of the arc-shaped connector 1, and has a necking phenomenon.

[0042] In this embodiment, the arc-shaped connector 1 is similar to a spherical connector.

[0043] In this embodiment, if Figure 2 As shown, the hook teeth 6 have four pieces in total, which bite into the neck functional area 2 to complete the structural stability connection.

[0044] The lower end of the hook tooth 6 is provided with a guide surface, which has a certain inclination, and the inclination direction is inclined toward the inner part of the upper outer shell 5. In this embodiment, the hook tooth 6 is also made of polyvinyl chloride and has a certain flexibility. During the plug-in process, it can produce a certain deformation to ensure that the hook tooth 6 and the arc-shaped connector 1 are quickly connected together. The upper end surface of the hook tooth 6 is horizontally arranged, and its length is relatively long, which is adapted to the annular groove, so that the annular groove limits the upper end surface of the hook tooth 6 to ensure stable positioning.

[0045] The interior of the upper outer shell 5 is an arc-shaped concave surface, which is adapted to the arc-shaped connector 1 .

[0046] like Figure 3 As shown, the pin structure 3 is in the shape of a cylinder in the area below the neck functional area 2 .

[0047] The lower part of the pin structure 3 is completely disposed in the lower outer shell 7, and a cushion structure 4 is disposed in the outer shell. The cushion structure 4 is located between the lower outer shell 7 and the pin structure 3 to accommodate small displacements of the pin structure 3 that may occur during positioning.

[0048] like Figure 4As shown, with the neck functional area 2 as the boundary, the upper and lower connecting parts are divided into an upper outer shell 5 and a lower outer shell 7. The upper outer shell 5 is buried in the through hole of the upper tower section, and the lower outer shell 7 is buried in the lower tower section. The lower part of the upper outer shell 5 has a hook-shaped structure that forms a self-locking structure with the neck functional area 2, and the lower outer shell 7 has a fixed track to fix the steel core turntable for rotation.

[0049] The upper and lower connecting parts are coaxial structures from top to bottom, and the overall structure is symmetrical about the axis.

[0050] Embodiment 2

[0051] A tower connection positioning device, two positioning devices are arranged on each section of the wind turbine tower, with a total of two positioning devices, one long and one short. Select the diagonal position of the embedded parts on the top surface of the wind turbine foundation (or the top surface of the lower tower section) to embed the two lower outer shells 7, and then insert the pin structure 3 into the lower outer shell 7, wherein the long positioning device is exposed to a certain length of the top surface of the foundation, and the short positioning device is exposed to a certain length of the top surface of the foundation, the two positioning lengths are different, and the long positioning device is exposed more. The corresponding upper connecting parts of the two positioning devices are embedded in the corresponding reserved channels of the upper tower section.

[0052] The first section of the concrete tower which is spliced ​​into a whole ring is hoisted onto the wind turbine foundation by using an auxiliary hoist, and the upper connecting piece of the positioning device corresponding to the bottom surface of the concrete tower corresponds to the lower connecting piece of the positioning device corresponding to the top surface of the wind turbine foundation.

[0053] When positioning, first use a hook to lift the upper tower section, align the longer pin structure 3 of the lower tower section with the through hole of the upper tower section (the through hole is provided with an upper connecting piece), slowly lower the tower, and insert the long positioning pin into the through hole of the upper tower section.

[0054] The upper connecting piece in the through hole (formed by the upper outer shell 5 and a plurality of hook teeth 6) and the neck functional area 2 of the positioning long pin form a self-locking structure, and the whole ring rotates and fine-tunes around the mounted positioning device.

[0055] Using the long positioning pin as the axis, slowly rotate the upper tower section to align the other through hole of the upper tower section with the short positioning pin of the lower tower section.

[0056] Slowly lower the upper tower section and insert the short pin into the corresponding positioning through hole of the upper tower section.

[0057] The upper connecting piece in the through hole and the neck functional area 2 of the positioning short pin form a self-locking structure, and the structure remains stable.

[0058] Positioning completed.

[0059] The above description is only the preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principle of the utility model without creative labor shall be included in the protection scope of the utility model.

Claims

1. A tower connection positioning device, characterized in that: It comprises an upper connecting piece and a lower connecting piece, wherein the upper connecting piece and the lower connecting piece are clamped together; The lower connecting member comprises a lower outer shell and a pin structure arranged in the lower outer shell, the upper part of the pin structure is an arc-shaped connecting head, and the middle part of the arc-shaped connecting head is provided with an annular groove; The upper connecting member comprises an upper outer shell, and a plurality of hook teeth distributed circumferentially are arranged on the end surface of the upper outer shell, and the hook teeth are adapted to the annular groove; The upper outer shell is embedded in the through hole of the upper tower section, and the lower outer shell is embedded in the lower tower section. Through the engagement of the hook teeth and the annular groove, the upper connecting member and the lower connecting member are self-locked, and the upper and lower tower sections are positioned.

2. A tower connection positioning device as claimed in claim 1, characterized in that: The upper end of the pin structure is an arc-shaped connecting head, and the lower end is provided with a columnar structure, and the arc-shaped connecting head and the columnar structure are connected.

3. A tower connection positioning device as claimed in claim 2, characterized in that: The columnar structure is arranged inside the lower outer shell.

4. A tower connection positioning device as claimed in claim 2, characterized in that: A cushion layer is arranged between the columnar structure and the inner edge of the lower outer shell.

5. A tower connection positioning device as claimed in claim 1, characterized in that: The annular groove of the pin structure is exposed outside the lower outer shell.

6. A tower connection positioning device as claimed in claim 1, characterized in that: The upper connecting member and the lower connecting member are coaxially arranged.

7. A tower connection positioning device as claimed in claim 1, characterized in that: The arc-shaped connector is made of polyvinyl chloride.

8. A tower connection positioning device as claimed in claim 1 or 7, characterized in that: A guide surface is arranged at the lower end of the hook tooth. The guide surface has a certain inclination, and the inclination direction is inclined toward the inner part of the upper outer shell.

9. A tower connection positioning device as claimed in claim 1 or 7, characterized in that: The hook teeth are made of polyvinyl chloride.

10. A tower connection positioning device as claimed in claim 1, characterized in that: The interior of the upper outer shell is an arc-shaped concave surface, which is matched with the arc-shaped connector.

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