阅读说明：本技术 一种用于风电管形母线导体中间连接的刚性结构 (Rigid structure for wind power tubular bus conductor intermediate connection ) 是由 王日新 于欣 于 2020-05-09 设计创作，主要内容包括：一种用于风电管形母线导体中间连接的刚性结构涉及风力发电电能传输技术领域。主要是为解决目前采用现场焊接方式连接风电管形母线中间接头导体施工周期长等问题而发明的。它包括管形母线导体,管形母线导体的端部有导电端子,导电端子的每个侧面上都有螺栓安装孔；还包括导电连接板和均压垫片,将导电连接板的上端与位于上方的管形母线导体下端的导电端子通过均压垫片和螺栓连接,将导电连接板的下端与位于下方的管形母线导体上端的导电端子通过均压垫片和螺栓连接,这样就构成了一个四面封闭的刚性连接结构。优点是安装快捷,解决了风电塔筒内风电管形母线导体中间连接现场焊接施工不便、金属探伤检测困难的问题。(A rigid structure for the intermediate connection of a wind power tubular bus conductor relates to the technical field of wind power generation electric energy transmission. The method is invented for mainly solving the problems that the construction period is long and the like when the wind power tubular bus intermediate joint conductor is connected in a field welding mode at present. The conductive terminal comprises a tubular bus conductor, wherein the end part of the tubular bus conductor is provided with a conductive terminal, and each side surface of the conductive terminal is provided with a bolt mounting hole; the upper end of the conductive connecting plate is connected with the conductive terminal at the lower end of the tubular bus conductor above through the pressure-equalizing gasket and the bolt, and the lower end of the conductive connecting plate is connected with the conductive terminal at the upper end of the tubular bus conductor below through the pressure-equalizing gasket and the bolt, so that a rigid connecting structure with four closed surfaces is formed. The method has the advantages of being fast in installation and solving the problems that welding construction is inconvenient in the middle connection site of the wind power tubular bus conductor in the wind power tower and metal flaw detection is difficult.)

1. A rigid structure for connecting wind power tubular bus conductors is characterized in that: the conductive terminal comprises a tubular bus conductor, wherein at least one end of the tubular bus conductor is connected with a rectangular conductive terminal, and each side surface of the conductive terminal is respectively provided with a bolt mounting hole;

the connecting structure also comprises four conductive connecting plates, and the upper part and the lower part of each conductive connecting plate are provided with bolt mounting holes;

a pressure equalizing gasket is arranged outside the bolt mounting holes at the upper part and the lower part of each conductive connecting plate, and each pressure equalizing gasket is provided with a bolt mounting hole;

the upper ends of the two conductive connecting plates are arranged on the outer sides of two parallel surfaces of the conductive terminal at the lower end of the upper tubular bus conductor, and the lower ends of the two conductive connecting plates are arranged on the outer sides of two parallel surfaces of the conductive terminal at the upper end of the lower tubular bus conductor; installing a voltage-sharing gasket outside the bolt installation holes of the two conductive connecting plates, and finally connecting the voltage-sharing gasket, the conductive connecting plates and the conductive terminals by bolts; the outer sides of the bolt mounting holes of the other two conductive connecting plates are provided with voltage-sharing gaskets, and the voltage-sharing gaskets and the two conductive connecting plates are connected with the other two parallel surfaces of the conductive terminals through bolts, so that a rigid connection structure with four closed surfaces is formed.

2. A rigid structure for the intermediate connection of tubular bus conductors for wind power generation according to claim 1, wherein: the rectangular conductive terminal of the tubular bus conductor and the tubular bus conductor are made of aluminum, copper or other conductive materials.

3. A rigid structure for the intermediate connection of tubular bus conductors for wind power generation according to claim 1, wherein: the modulus of the rectangular section of the rectangular conductive terminal of the tubular bus conductor is not less than the modulus of the circular section of the tubular bus conductor.

4. A rigid structure for the intermediate connection of tubular bus conductors for wind power generation according to claim 1, wherein: the rectangular conductive terminal and the tubular bus conductor are prefabricated into a whole by welding or threaded connection.

5. A rigid structure for the intermediate connection of tubular bus conductors for wind power generation according to claim 1, wherein: the rectangular conductive terminal of the tubular bus conductor can be solid or hollow.

6. A rigid structure for the intermediate connection of tubular bus conductors for wind power generation according to claim 1, wherein: the conductive connecting plate is made of aluminum, copper or other conductive materials.

7. A rigid structure for the intermediate connection of tubular bus conductors for wind power generation according to claim 1, wherein: the sum of the cross-sectional areas of the four conductive connecting plates is not less than the cross-sectional area of the tubular bus conductor with the rectangular conductive terminal at the end.

8. A rigid structure for the intermediate connection of tubular bus conductors for wind power generation according to claim 1, wherein: the pressure equalizing gasket is made of non-magnetic copper or stainless steel.

The technical field is as follows:

the invention relates to the technical field of wind power generation and electric energy transmission, in particular to a rigid structure for connecting a wind power tubular bus conductor in the middle.

Background art:

at present, the wind power tubular bus has relatively rapid development in the wind power tower cylinder to replace a cable, and particularly, the integral wind power tubular bus with an intermediate joint installed without flexible connection is widely accepted by mainstream in the industry. The connection of the conductor of the middle joint of the integral wind power tubular bus mainly adopts a field welding mode at present, and because the space in a wind power tower is narrow and small, open fire is not suitable to be driven, a generator and argon gas are required to be carried during welding, the requirement on the skill of a welder is high, and the metal flaw detection after welding is difficult, the construction period is long, the cost is high, and the large-area application and the rapid development of the integral wind power tubular bus are influenced. Therefore, the research on a rigid connection structure which can replace field welding to realize quick installation is urgent.

The invention content is as follows:

the invention aims to provide a rigid structure for connecting the middle of a wind power tubular bus conductor, which can replace a field welding mode for connecting the wind power tubular bus conductor in a wind power tower, and has the advantages of convenient and quick installation and low construction cost.

The above object is achieved by: the conductive terminal comprises a tubular bus conductor, wherein one end or two ends of the tubular bus conductor are in threaded connection or welded with a conductive terminal with a rectangular radial section, and each side surface of the conductive terminal is respectively provided with a bolt mounting hole;

the connecting structure also comprises four conductive connecting plates, and the upper part and the lower part of each conductive connecting plate are provided with bolt mounting holes;

and a pressure equalizing gasket is arranged outside the bolt mounting holes at the upper part and the lower part of each conductive connecting plate, and each pressure equalizing gasket is provided with a bolt mounting hole.

When two adjacent tubular bus conductors are connected, the upper ends of two conductive connecting plates are arranged at the outer sides of two parallel surfaces of a conductive terminal at the lower end of the tubular bus conductor above, the lower ends of the two conductive connecting plates are arranged at the outer sides of two parallel surfaces of a conductive terminal at the upper end of the tubular bus conductor below, and bolt mounting holes at the upper part and the lower part of the two conductive connecting plates respectively correspond to the conductive terminal at the lower end of the tubular bus conductor above and the bolt mounting hole on the conductive terminal at the upper end of the tubular bus conductor below; and finally, the voltage-sharing gasket, the conductive connecting plate and the conductive terminal are connected by using a bolt assembly.

And the other two remaining conductive connecting plates are installed in the same way, so that a rigid connecting structure with four closed surfaces is formed. Two sections of tubular bus conductors are connected into a whole in a four-surface closed mode, and reliable bearing of current conduction, force and vibration is achieved.

As the improvement of the rigid structure for the intermediate connection of the wind power tubular bus conductor, the rectangular conductive terminal of the tubular bus conductor and the tubular bus conductor are made of aluminum, copper or other conductive materials.

As the improvement of the rigid structure for the intermediate connection of the wind power tubular bus conductor, the modulus of the rectangular section of the rectangular conductive terminal of the tubular bus conductor is not less than the modulus of the circular section of the tubular bus conductor.

As the improvement of the rigid structure for the intermediate connection of the wind power tubular bus conductor, the rectangular conductive terminal of the tubular bus conductor and the tubular bus conductor are prefabricated into a whole by welding or threaded connection.

As the improvement of the rigid structure for the intermediate connection of the wind power tubular bus conductor, the rectangular conductive terminal of the tubular bus conductor can be solid or hollow.

As the improvement of the rigid structure for the intermediate connection of the tubular bus conductor of the wind power generation, the conductive connecting plate is made of aluminum, copper or other conductive materials.

As the improvement of the rigid structure for the intermediate connection of the wind power tubular bus conductor, the sum of the cross section areas of the four conductive connecting plates is not less than the cross section area of the tubular bus conductor with the rectangular conductive terminal at the end part.

The invention relates to an improvement of a rigid structure for connecting the middle of a tubular bus conductor of wind power, which is characterized in that a voltage-sharing gasket is made of non-magnetic copper or stainless steel.

The invention has the advantages that: the rigid structure connected between the wind power tubular bus conductors connects the two sections of tubular bus conductors into a whole in a four-side closed mode through the conductive connecting plates, the voltage-sharing gaskets and the bolts, and the sum of the cross section areas of the four conductive connecting plates is not smaller than that of the tubular bus conductors with the rectangular conductive terminals at the end parts. Therefore, the device has the characteristics of good current conduction performance and reliable force and vibration bearing. The invention has simple structure and quick installation, reduces the construction cost, and particularly solves the problems of inconvenient welding construction and difficult metal flaw detection of the intermediate connection site of the wind power tubular bus conductor in the wind power tower.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an exploded view of the present invention.

The specific implementation mode is as follows:

the present invention is further described below with reference to fig. 1 and 2 so that those skilled in the art can better understand the present invention and can implement the present invention, but the present invention is not limited to the illustrated embodiment.

The rigid structure connected between the wind power tubular bus conductors comprises tubular bus conductors 1 with rectangular conductive terminals at the ends, a voltage-sharing gasket 2, a conductive connecting plate 3, rectangular conductive terminals 4 and bolts 5.

One end or two ends of the tubular bus conductor are in threaded connection or welded with a conductive terminal with a rectangular radial section, and each side surface of the conductive terminal is respectively provided with a bolt mounting hole; the end rectangular terminal of the tubular bus conductor is preferably square, with the square having a section modulus greater than the annular section modulus of the tubular bus conductor.

The connecting structure also comprises four conductive connecting plates, and the upper part and the lower part of each conductive connecting plate are provided with bolt mounting holes; the sum of the cross section areas of the four conductive connecting plates is larger than the cross section area of the tubular bus conductor with the square conductive terminal at the end.

And a pressure equalizing gasket is arranged outside the bolt mounting holes at the upper part and the lower part of each conductive connecting plate, and each pressure equalizing gasket is provided with a bolt mounting hole. The pressure equalizing gasket is made of non-magnetic stainless steel, and the influence of aluminum alloy creep on the joint part on the electric conductivity is improved by using the pressure equalizing gasket.

When two adjacent tubular bus conductors are connected, the upper ends of two conductive connecting plates are arranged at the outer sides of two parallel surfaces of a conductive terminal at the lower end of the tubular bus conductor above, the lower ends of the two conductive connecting plates are arranged at the outer sides of two parallel surfaces of a conductive terminal at the upper end of the tubular bus conductor below, and bolt mounting holes at the upper part and the lower part of the two conductive connecting plates respectively correspond to the conductive terminal at the lower end of the tubular bus conductor above and the bolt mounting hole on the conductive terminal at the upper end of the tubular bus conductor below; and finally, the voltage-sharing gasket, the conductive connecting plate and the conductive terminal are connected by bolts.

And the other two remaining conductive connecting plates are installed in the same way, so that a rigid connecting structure with four closed surfaces is formed. Two sections of tubular bus conductors are connected into a whole in a four-surface closed mode, and reliable bearing of current conduction, force and vibration is achieved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.