CN210135036U

CN210135036U - Universal wrapping spherical branch node connector for lattice type concrete filled steel tube wind power tower

Info

Publication number: CN210135036U
Application number: CN201920878787.XU
Authority: CN
Inventors: 闻洋; 李补拴; 周鸿林; 相泽辉
Original assignee: Inner Mongolia University of Science and Technology
Current assignee: Inner Mongolia University of Science and Technology
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-03-10
Anticipated expiration: 2029-06-12

Abstract

The utility model provides an universal parcel ball-type branch node connector of lattice formula steel pipe concrete wind-powered electricity generation pylon, including clamp sleeve, body, bolt ball, locking piece, connecting rod, connection ball and branch, clamp sleeve demountable installation is on the pylon, the outer wall of clamp sleeve is located perpendicularly to the body, the locking piece is installed in the outer tip of body and this locking piece has the centre bore, the bolt ball is rotatable locate in the body and this bolt ball part stretches out the body from the centre bore department of locking piece, the connection ball is located the outside of body and can dismantle with the extension of bolt ball through the connecting rod and be connected, the connection ball has the internal thread hole, the one end spiro union of branch is in the internal thread hole, the other end of branch can be dismantled with the web member and be connected. The utility model provides a node connector utilizes connecting rod, connection ball and branch to cooperate and connects many web members, helps reducing the extreme point that web member and bolt ball are connected to this has reduced the restriction to bolt ball turned angle.

Description

Universal wrapping spherical branch node connector for lattice type concrete filled steel tube wind power tower

Technical Field

The utility model relates to a wind power tower technical field, concretely relates to universal parcel ball-type branch node connector of lattice formula steel pipe concrete wind power tower.

Background

With the development of the wind power industry and the increase of the installed capacity of wind power, the requirements of various wind power generator sets on tower structures are different, so that the diversification of the tower structure forms is imperative. The multi-limb lattice type concrete filled steel tube wind power tower structure has the advantages of low manufacturing cost, good reliability, good low-cycle fatigue performance, high material utilization rate, strong applicability and the like, has strong adaptability to the difficulty faced by the steel structure frustum type tower cylinder, and has wide engineering application prospect.

The node connector is a key component of a lattice type concrete filled steel tube wind power tower structure and is a weak link of the whole structure. The problem that the existing node form cannot meet the requirement of tower applicability is found in the popularization process of the lattice type concrete filled steel tube wind power tower, and the problem becomes a bottleneck restricting the popularization in a large range. The research on the lattice type steel pipe concrete structure node has been concentrated on the conventional node in the truss, the frame and the lattice type column so far, and the terms of the relevant node of each country's specification are also established according to the research result of the conventional node. The terms and parts of related nodes in the specifications of various countries also relate to inevitable unconventional nodes in the multi-limb lattice type steel pipe concrete structure, such as the current technical specification of the steel pipe concrete structure (GB50936-2014) and the design and construction specification of the steel pipe concrete structure (CECS28-2012) in China, the unconventional nodes are only considered in the empirical or conceptual sense and the provision of how to handle is given, sufficient test basis and deep theoretical analysis are lacked, and related research results cannot be directly used for the node design and calculation of the multi-limb lattice type steel pipe concrete wind power tower structure due to the stress difference and the structural complexity. Therefore, the research and design of the node which is convenient to construct, clear in force transmission, reasonable in stress, safe and reliable becomes a key problem for promoting and promoting the development of the wind power industry, has great engineering value and theoretical significance, and currently, the research on the multi-limb lattice type steel pipe concrete wind power tower structure node is blank at home and abroad.

The utility model provides a china's utility model provides an universal parcel plate formula node of lattice formula steel pipe concrete wind-powered electricity generation pylon (application number is 2014102415625), including two semi-cylindrical sleeves, set up the body on the telescopic outer disc of semi-cylindrical, the inside spheroid that sets up of body, the spheroid can be at the inside free rotation of body, set up the gusset plate on the spheroid, two semi-cylindrical sleeves parcel are on lattice formula steel pipe concrete wind-powered electricity generation pylon's column, and through bolt-up connection, the shaped steel web member passes through bolted connection's mode and spheroid and links to each other, the column, universal parcel plate formula node and shaped steel web member constitute lattice formula steel pipe concrete wind-powered electricity generation pylon jointly, the dismantlement of universal parcel plate formula node is convenient, safety and reliability, can satisfy lattice formula steel pipe concrete wind-powered electricity generation pylon's. The universal wrapped plate type node provided by the patent has the following problems in use: 1. after a plurality of web members are connected to the same sphere, the rotation angle of the sphere is limited; 2. when working aloft, the installation consumes long time and is difficult.

Disclosure of Invention

Problem to among the prior art, the utility model provides a universal parcel ball-type branch node connector of lattice formula steel pipe concrete wind power pylon to overcome the shortcoming that the angle required precision is high, the construction degree of difficulty is big among the current node equipment concatenation process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a universal parcel ball-type branch node connector of lattice formula steel pipe concrete wind-powered electricity generation pylon, node connector includes clamp sleeve, body, bolt ball, locking part, connecting rod, connecting ball and branch, clamp sleeve demountable installation is on the pylon, the body is located perpendicularly the outer wall of clamp sleeve, the locking part install in the outer tip of body and this locking part have the centre bore, the bolt ball is rotatable locate in the body and this bolt ball part is followed the centre bore department of locking part stretches out the body, the connecting ball is located the outside of body and pass through the connecting rod with the connection can be dismantled to the extension of bolt ball, the connecting ball has the internal thread hole, the one end spiro union of branch in the internal thread hole, the other end of branch can be dismantled with the web member and be connected.

Furthermore, the locking piece comprises a first flange fixedly arranged at the outer end part of the pipe body and a second flange detachably connected with the first flange through a plurality of bolt and nut combinations.

Further, the diameter of the connecting ball is 3-6 times of the diameter of the central hole of the second flange.

Further, the other end of branch has the external screw thread post, the one end of web member seted up with the external screw thread post spiro union makes the web member with the internal thread hole that branch is connected.

Furthermore, the clamp sleeve comprises a first arc-shaped plate and a second arc-shaped plate, the first plane end of the first arc-shaped plate is connected with the first plane end of the second arc-shaped plate through a hinge shaft, and the second plane end of the first arc-shaped plate is detachably connected with the second plane end of the second arc-shaped plate through a fixing assembly. .

Further, the fixing assembly comprises a first joint part and a second joint part which are respectively arranged on the outer sides of the end parts of the first arc-shaped plate and the second arc-shaped plate, and a bolt-nut combination which penetrates through the first joint part and the second joint part and enables the first joint part and the second joint part to be fixedly connected.

Furthermore, the central lines of the two pipe bodies are on the same horizontal plane and form an included angle of 70 degrees.

The utility model provides an universal parcel ball-type branch node connector of lattice formula steel pipe concrete wind-powered electricity generation pylon utilizes connecting rod, connection ball, branch to cooperate and connects many web members, helps reducing the extreme point that web member and bolt ball are connected to this has reduced the restriction to bolt ball turned angle, and then has helped reducing the requirement to node angle precision, helps shortening the connection time of web member and bolt ball simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a front view of a universal wrapping spherical branch joint connector of a lattice concrete filled steel tube wind power tower provided by the utility model;

FIG. 2 is a top view of the node connector shown in FIG. 1;

FIG. 3 is a rear view of the node connector shown in FIG. 1;

FIG. 4 is a side view of the node connector shown in FIG. 1;

in the reference symbols:

10. a tower column;

20. a node connector; 21. a clamp sleeve; 211. a first arc-shaped plate; 212. a second arc-shaped plate; 213. a hinge shaft; 214. a first engaging portion; 215. a second engaging portion; 22. a pipe body; 23. a first flange; 24. a second flange; 25. a bolt ball; 26. a connecting rod; 27. a connecting ball; 28. a strut;

30. a web member.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 to 4, a universal wrapping spherical branch node connector of a lattice type concrete filled steel tube wind power tower, the node connector 20 comprises a clamp sleeve 21, a pipe body 22, a bolt ball 25, a locking piece, a connecting rod 26, a connecting ball 27 and a support rod 28, the clamp sleeve 21 is detachably arranged on the tower column 10, the pipe body 22 is vertically arranged on the outer wall of the clamp sleeve 21, the locking member is arranged at the outer end part of the pipe body 22 and is provided with a central hole, the bolt ball 25 can be rotatably arranged in the pipe body 22, part of the bolt ball 25 extends out of the pipe body 22 from the central hole of the locking member, the connection ball 27 is located outside the tube body and detachably connected to the protruding portion of the bolt ball 25 by the connection rod 26, the connecting ball 27 is provided with an internal threaded hole, one end of the supporting rod 28 is screwed in the internal threaded hole, and the other end of the supporting rod 28 can be detachably connected with the web member 30.

According to the node connector 20 provided by the embodiment, the node connector 20 can be detachably connected with the tower column 10 and the web member 30, wherein the node connector 20 is connected with the tower column 10 through the clamp sleeve 21, so that the node connector 20 can be quickly fixed on the tower column 10. The connecting rod 26, the connecting ball 27 and the strut 28 are matched to connect a plurality of web members 30, which is beneficial to reducing the connection end points of the web members 30 and the bolt ball 25, thereby reducing the limitation on the rotation angle of the bolt ball 25, further being beneficial to reducing the requirement on the precision of the angle of the joint and simultaneously being beneficial to shortening the connection time of the web members 30 and the bolt ball 25.

As shown in fig. 2, the collar 21 includes a first arc plate 211 and a second arc plate 212, a first plane end of the first arc plate 211 is connected to a first plane end of the second arc plate 212 by a hinge shaft 213, and a second plane end of the first arc plate 211 is detachably connected to a second plane end of the second arc plate 212 by a fixing member. Specifically, the fixing assembly includes a first engaging portion 214 and a second engaging portion 215 respectively provided outside the ends of the first arc-shaped plate 211 and the second arc-shaped plate 212, and a bolt-nut combination penetrating the first engaging portion 214 and the second engaging portion 215 and fixedly connecting the first engaging portion 214 and the second engaging portion 215.

As shown in fig. 1, the locking member includes a first flange 23 fixed to an outer end of the pipe body 22 and a second flange 24 detachably connected to the first flange 23 through a plurality of bolt and nut assemblies, in this embodiment, the first flange 23 and the second flange 24 have the same shape, and the first flange 23 and the second flange 24 cooperate to limit the bolt ball 25 from being separated from the pipe body 22.

In this embodiment, the shape of the pipe body 22 may be selected from a circular pipe shape, a truncated circular cone shape or an irregular shape, preferably a circular pipe shape, the inner end of the pipe body 22 is welded to the collar 21, the inner diameter of the pipe body 22 is preferably 1.2 to 1.5 times the diameter of the bolt ball 25 to provide sufficient rotation space for the bolt ball 25, and the bolt ball 25 partially protrudes from the central hole of the second flange 24, specifically, the diameter of the central hole of the second flange 24 is 0.4 to 0.48 times the diameter of the bolt ball 25, so that the bolt ball 25 protrudes at least 1/3 out of the second flange 24.

In this embodiment, the diameter of the connecting ball 27 is 3 to 6 times the diameter of the central hole of the second flange 24, so that the connecting ball 27 can be provided with a plurality of internally threaded holes for connecting the web members 30.

In this embodiment, in order to facilitate the quick connection between the strut 28 and the web member 30, an external threaded post is disposed at the end of the strut 28 away from the connecting ball 27, and an internal threaded hole for connecting the web member 30 and the strut 28 by screwing with the external threaded post is formed at one end of the web member 30.

In this embodiment, the center lines of the two tubes 22 are on the same horizontal plane and form an included angle of 70 °, so as to control the angles between the three towers 10.

The universal parcel ball-type branch node connector of lattice formula steel pipe concrete wind-powered electricity generation pylon that this embodiment provided, it wraps up in the outside of pylon 10 through two clamp sleeve 21, clamp sleeve 21 passes through bolt and nut built-up connection on pylon 10, it is wrapping up pylon 10 to form a firm whole, two pipes are being welded to the outer wall of clamp sleeve 21, bolt ball 25 is located in the pipe, and it is rotatable in body 22 to cooperate control bolt ball 25 through first flange 23 and second flange 24, many web members 30 pass through branch 28, connect ball 27, connecting rod 26 is connected with bolt ball 25, and finally form lattice formula steel pipe concrete wind power generator pylon structure.

The tower column 10, the web members 30 and the node connectors 20 of the lattice type concrete filled steel tube wind power tower provided by the embodiment can be preprocessed in a factory, and are all discrete parts, so that the transportation is convenient. In the whole construction process of the lattice type concrete filled steel tube wind power tower, the tower column 10 is installed, and then the node connector is installed at the pre-designed node position.

The specific implementation mode is as follows: the clamp sleeve 21 of the node can be freely opened and closed around the hinge shaft 213, the clamp sleeve is wrapped at the designated position of the tower column 10 and is fixed by combining bolts and nuts, so that the connection with the tower column 10 is firm, a plurality of web members 30 are connected with the bolt balls 25 through the branch rods, the other ends of the web members 30 are connected with the other bolt ball 25, and the complete lattice type concrete-filled steel tube wind power tower is formed by sequentially connecting the web members with the other bolt ball 25. The whole construction process does not need on-site welding, only needs bolt connection, is convenient to construct, wraps the bolt ball 25 and can rotate freely, and the requirements on machining and construction precision are lowered.

It should be noted that in the description of the present application, it is to be understood that the terms "center", "diameter", "vertical", "horizontal", "inner", "outer", "radial", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a universal parcel ball-type branch node connector of lattice formula steel pipe concrete wind-powered electricity generation pylon which characterized in that: the node connector (20) comprises a clamp sleeve (21), a pipe body (22), a bolt ball (25), a locking part, a connecting rod (26), a connecting ball (27) and a supporting rod (28), wherein the clamp sleeve (21) is detachably mounted on a tower column (10), the pipe body (22) is vertically arranged on the outer wall of the clamp sleeve (21), the locking part is mounted at the outer end part of the pipe body (22) and is provided with a central hole, the bolt ball (25) is rotatably arranged in the pipe body (22), part of the bolt ball (25) extends out of the pipe body (22) from the central hole of the locking part, the connecting ball (27) is positioned outside the pipe body (22) and is detachably connected with the extending part of the bolt ball (25) through the connecting rod (26), the connecting ball (27) is provided with an internal threaded hole, one end of the supporting rod (28) is screwed in the internal threaded hole, the other end of the supporting rod (28) can be detachably connected with the web member (30).

2. The universal wrapped spherical branch node connector of a lattice concrete filled steel tube wind power tower according to claim 1, wherein: the locking piece comprises a first flange (23) fixedly arranged at the outer end part of the pipe body (22) and a second flange (24) detachably connected with the first flange (23) through a plurality of bolt and nut combinations.

3. The universal wrapped spherical branch node connector for a lattice concrete filled steel tube wind power tower according to claim 2, wherein: the diameter of the connecting ball (27) is 3-6 times of the diameter of the central hole of the second flange (24).

4. The universal wrapped spherical branch node connector of a lattice concrete filled steel tube wind power tower according to claim 1, wherein: the other end of branch (28) has the external screw thread post, the one end of web member (30) seted up with the external screw thread post spiro union makes web member (30) with the internal thread hole that branch (28) are connected.

5. The universal wrapped spherical branch node connector of a lattice concrete filled steel tube wind power tower according to claim 1, wherein: the clamp sleeve (21) comprises a first arc-shaped plate (211) and a second arc-shaped plate (212), the first plane end of the first arc-shaped plate (211) is connected with the first plane end of the second arc-shaped plate (212) through a hinge shaft (213), and the second plane end of the first arc-shaped plate (211) is detachably connected with the second plane end of the second arc-shaped plate (212) through a fixing component.

6. The universal wrapped spherical branch node connector of a lattice concrete filled steel tube wind power tower according to claim 5, wherein: the fixing assembly comprises a first joint part (214) and a second joint part (215) which are respectively arranged on the outer sides of the end parts of the first arc-shaped plate (211) and the second arc-shaped plate (212), and a bolt-nut combination which penetrates through the first joint part (214) and the second joint part (215) and enables the first joint part (214) and the second joint part (215) to be fixedly connected.

7. The universal wrapped spherical branch node connector of a lattice concrete filled steel tube wind power tower according to claim 1, wherein: the central lines of the two pipe bodies (22) are on the same horizontal plane and form an included angle of 70 degrees.