CN217632769U

CN217632769U - Truss tower base and wind turbine generator tower

Info

Publication number: CN217632769U
Application number: CN202222062663.9U
Authority: CN
Inventors: 王康世; 王坤鹏; 康鹏举; 蒋勇
Original assignee: Shanghai Electric Wind Power Group Co Ltd
Current assignee: Shanghai Electric Wind Power Group Co Ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-10-21
Anticipated expiration: 2032-08-05

Abstract

The utility model provides a truss tower base and a wind turbine tower, relating to the field of towers; the truss tower seat comprises a supporting foundation, a transition section and a supporting truss; wherein the support truss comprises at least three support columns arranged at intervals along the circumference of the transition section, each support column is supported between the transition section and the support foundation, and the support columns are tubular members with hollow interiors; the truss tower base further comprises prestressed cable assemblies for fixedly connecting the transition section, the support truss and the support foundation, and the number of the prestressed cable assemblies corresponds to that of the support columns; one end of the prestressed cable assembly is fixed on the supporting foundation, and the other end of the prestressed cable assembly penetrates through the supporting column and then is fixed on the transition section; the prestressed cable assembly extends along the straight line of the supporting column; the wind turbine generator tower comprises the truss tower seat; this application has the effect of making things convenient for truss tower seat to install.

Description

Truss tower base and wind turbine generator tower

Technical Field

The utility model relates to a field of pylon, in particular to truss tower seat and wind turbine generator system pylon.

Background

A wind turbine tower is a structure for supporting a wind turbine. The land wind turbine generator has higher and higher power, the blades are longer and longer, the load of a tower of the generator is also higher and higher, and a tower structure with higher bearing capacity is required.

At present, the domestic tower frame mainly adopts the conventional conical steel tower, a concrete tower frame, a truss tower seat tower and the like. The steel column comprises members such as columns, cross bars, inclined bars and the like, wherein the members are generally steel sections such as steel pipes or other sections. The number of nodes for welding or connecting the components is large, the bolts are connected by the bolts, the number of the bolts is large, the installation precision requirement of the holes is high, the installation construction period of the bolts on site is long, and later-stage inspection and maintenance are difficult.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a truss tower seat and wind turbine generator system pylon in order to overcome the inconvenient defect of component installation of pylon among the prior art.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

in a first aspect, the application discloses a truss tower base, which adopts the following technical scheme:

a truss tower mount comprising:

the supporting base is used for being fixedly connected with the ground;

the transition section is used for connecting and supporting a component above the truss tower seat;

the supporting truss is connected between the supporting foundation and the transition section and is used for supporting the transition section;

wherein the support truss comprises at least three support columns arranged at intervals along the circumference of the transition section, each support column is supported between the transition section and the support foundation, and the support columns are tubular members with hollow interiors;

the truss tower base further comprises prestressed cable assemblies for fixedly connecting the transition section, the support truss and the support foundation, and the number of the prestressed cable assemblies corresponds to that of the support columns;

one end of the prestressed cable assembly is fixed on the supporting foundation, and the other end of the prestressed cable assembly penetrates through the supporting column and then is fixed on the transition section; the prestressed cable assembly extends along the axial direction of the supporting column.

In the scheme, the supporting foundation is fixed with the ground and is used for bearing the load of the truss tower seat and the components above the truss tower seat; the transition section is used for connecting and supporting a component above the truss tower seat; the support truss is fixed between the support base and the transition section to support the transition section. The support truss includes at least three support columns circumferentially spaced along the transition section such that the lower end of the support truss can define a plane for stable placement of the support truss. The support columns are supported between the transition sections and the support foundation to support the transition sections; the prestressed cable assembly penetrates through the inside of the supporting column, and two ends of the prestressed cable assembly are respectively connected with the supporting base and the transition section. Therefore, the supporting columns are not fixed with the supporting foundation and the transition section through bolts, and only the prestressed cable assemblies are used for connection, so that the requirements on bolt connection and component machining accuracy are reduced, and the construction and installation convenience is improved. Meanwhile, compared with bolt connection, the prestressed cable connection mode is strong in fatigue resistance and free of maintenance.

Preferably, the prestressed cable assembly comprises a steel strand and an anchorage device, one end of the steel strand is fixedly connected with the supporting foundation, and the other end of the steel strand penetrates through the supporting column and then is fixedly connected with the anchorage device; the anchorage device is installed on the transition section.

In the scheme, a structure of the prestressed cable assembly is disclosed, the steel strand strains the transition section, the support columns and the support foundation, and the steel strand is fixed on the transition section through an anchorage device. The structure is simple and convenient to install.

Preferably, each prestressed cable assembly comprises a plurality of steel strands, and the steel strands are uniformly arranged along the circumferential side of the supporting column.

In this scheme, every prestressed cable subassembly contains many steel strands, and many steel strands evenly arrange along the week side of support column, make the load that steel strands can bear bigger from this, also make the atress of steel strands comparatively even simultaneously, be favorable to the long-term use of prestressed cable subassembly.

Preferably, the steel strands are parallel to the corresponding support columns.

In this scheme, every steel strand wires all parallels with the support column that corresponds to make the stress that steel strand wires bore more even, be difficult for taking place to entangle between the adjacent steel strand wires simultaneously, made things convenient for steel strand wires's installation.

Preferably, the transition section comprises a transition table for supporting the components above the truss tower and a first flange for connecting the prestressed cable assembly; the first flanges are fixed on the transition table and correspond to the prestressed cable assemblies one by one; the first flange is abutted against the end face of one end, far away from the supporting base, of the supporting column, and the prestressed cable assembly penetrates through the supporting column and the first flange to fix the supporting column and the first flange.

In the scheme, the transition table is a main body of the transition section and is used for supporting a component above the truss tower seat; the number of the first flanges is the same as that of the prestressed cable assemblies, the first flanges correspond to the prestressed cable assemblies one by one to be connected with the prestressed cable assemblies, when the truss tower base is installed, the first flanges are abutted to the end faces of the supporting columns, and the prestressed cables penetrate through the supporting columns and the through holes in the corresponding first flanges and are fixed with the first flanges, so that the supporting columns and the first flanges are fixed together, and the supporting columns and the connecting sections are fixedly connected.

Preferably, the transition section further comprises transition convex columns which are in one-to-one correspondence with the support columns and used for connecting the support columns; the transition convex columns are arranged on the lower side of the transition table and are connected with the first flanges in a one-to-one corresponding mode.

In this scheme, the changeover portion still includes the transition projection with the support column one-to-one, and the transition projection is used for supplying first flange to correspond the connection, from this when satisfying the length of structural strength and changeover portion, reduces the consumptive material and the weight of changeover portion, the location installation of the first flange of also being convenient for simultaneously.

Preferably, the transition table and the transition convex column are in smooth transition.

In this scheme, the smooth-going transition of transition platform and transition projection, the smooth-going transition of here indicates to be circular-arcly in the junction of transition platform and transition projection to make the dog-ear of transition platform and transition projection junction diminish, make the difficult concentrated stress of junction of transition platform and transition projection, be favorable to promoting the bearing capacity and the life of changeover portion.

Preferably, the transition section comprises a transition table and a connecting column arranged on the transition table, the connecting column corresponds to the prestressed cable assemblies one by one, connecting holes for the prestressed cable assemblies to pass through are formed in the connecting column, and the prestressed cable assemblies pass through the connecting holes and are fixed on the connecting column.

In this scheme, the transition platform is used for supporting the component of truss tower seat top, and the spliced pole setting is used for supplying prestressed cable subassembly to connect on the transition platform. And a connecting hole is formed in the connecting column, and the prestressed cable assembly penetrates through the connecting hole and then is fixedly connected with the connecting column. According to the scheme, the first flange is omitted, the mounting steps are reduced, and parts are saved.

Preferably, the support truss further comprises a cross bar assembly for laterally supporting the support columns, and the cross bar assembly is fixedly arranged between the support columns.

In this scheme, horizontal pole subassembly branch is fixed between the support column for carry out the transverse support to the support column, thereby make the structural strength of truss tower seat better, bearing capacity is better.

Preferably, the cross bar assembly comprises support cross bars, the number of the support cross bars corresponds to the number of the support columns, and the support cross bars are connected between two adjacent support columns.

In this scheme, the horizontal pole subassembly is including supporting the horizontal pole, and every supports the horizontal pole and fixes between two adjacent support columns that correspond to transversely support the support column, make the support column be difficult for taking place the slope in the horizontal direction.

Preferably, the cross bar assembly further comprises a connecting lantern ring fixedly sleeved outside the supporting column; two ends of the supporting cross rod are respectively and correspondingly fixedly connected to the connecting lantern rings on the two adjacent supporting columns.

In this scheme, the both ends of supporting the horizontal pole correspond fixed connection respectively and are connected on the lantern ring adjacent even to a plurality of supporting horizontal poles and the lantern ring of connecting constitute a whole, when hoist and mount horizontal pole subassembly, only need aim at the support column and the cover with the lantern ring of connecting and establish and can realize the holistic installation of horizontal pole subassembly outside the support column, made things convenient for the hoist and mount of horizontal pole subassembly.

Preferably, the connecting collar comprises a first half ring and a second half ring, the first half ring and the second half ring tightly hold the periphery of the supporting column, and the first half ring and the second half ring are detachably connected.

In this scheme, connect the lantern ring including dismantling the first semi-ring and the second semi-ring of connection, when the lantern ring is connected in the installation, sheathe the support column and hug closely the support column with first semi-ring and second semi-ring from the periphery of support column, fixed first semi-ring and second semi-ring can, made things convenient for the installation of the connection lantern ring. When dismantling the connection lantern ring simultaneously, need not to unpack the support column apart earlier, made things convenient for the maintenance and the change of horizontal pole subassembly.

Preferably, an adhesive is arranged between the connecting lantern ring and the supporting column.

In the scheme, the connecting lantern ring is fixedly connected with the supporting column through the viscose, so that the operation is simple and the installation is convenient; meanwhile, the adhesive can fill the gap between the connecting sleeve ring and the supporting column, so that the connecting sleeve ring and the supporting column are connected more tightly and firmly.

Preferably, each of the supporting columns includes a plurality of columns in the same number, and the columns on the same supporting column are vertically connected in series and located on the same straight line.

In this scheme, every support column includes a plurality of stands, and a plurality of stands are vertical to be established ties and are located collinear formation the support column, from this, adjust the quantity of the stand of establishing ties in every support column and can adjust required truss tower seat height to make truss tower seat have the suitability of preferred. The vertical direction is the direction upward along the bottom, and includes the forms of vertical upward, inclined upward and the like.

Preferably, the connecting lantern ring is arranged at the serial connection position of two adjacent upright posts.

In this scheme, the connection sleeve ring sets up in the series connection department of two stands, and joint strength between the multiplicable stand simultaneously when establishing ties the stand, can establish the upper end at the stand of below with the adapter sleeve ring cover earlier, again with the stand hoist and mount of top to the stand top of below and make the lower extreme of the stand of top insert in the adapter sleeve ring, realize the location when stand hoist and mount are established ties, made things convenient for the installation of stand.

Preferably, the truss tower mount further comprises at least one support platform secured to the cross bar assembly.

In this scheme, supporting platform fixes on the horizontal pole subassembly for provide operating space and placing equipment, utilize truss tower seat area from dividing, reduce the scope of seeking land, reduce cost.

Preferably, the support columns are arranged obliquely, and the cross-sectional area of the upper part of the support truss is smaller than that of the lower part of the support truss.

In this scheme, the support column slope sets up, and the cross-sectional area on support truss upper portion is less than the cross-sectional area of support truss lower part to make support truss be big end down's platform form, thereby increased support truss's span and bottom area, be favorable to promoting support truss's support intensity.

Preferably, the support foundation comprises a foundation platform and foundation pilings fixed below the foundation platform and adapted to be inserted into the ground to fix the foundation platform.

In the scheme, the foundation platform is used for supporting the supporting columns, the foundation pile foundation is fixed on the foundation platform and inserted into the ground so as to increase the pulling resistance of the foundation platform, and the truss tower base can adapt to external environmental loads from the wind turbine generator.

Preferably, an anti-pulling stress cable is arranged on the foundation pile foundation, one end of the anti-pulling stress cable is fixed on the foundation platform, and the other end of the anti-pulling stress cable is fixed at one end, far away from the foundation platform, of the foundation pile foundation.

In this scheme, resistance to plucking stress cable is fixed between basic pile foundation and basic platform, further strengthens the ability that supports the basic external environment load that bears, promotes the resistance to plucking ability that supports the basis.

On the other hand, the application discloses a wind turbine generator system tower, including a tower section of thick bamboo and as above truss tower seat, a tower section of thick bamboo is fixed on the truss tower seat.

In this scheme, the beneficial effect of wind turbine generator system pylon is the same with above-mentioned truss tower seat, and this place is no longer repeated.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses a support column supports and forms the truss tower seat that is used for supporting a tower section of thick bamboo between support basis and changeover portion, and the inside cavity of support column just wears to be equipped with prestressed cable subassembly, and prestressed cable subassembly is connected between support basis and changeover portion, realizes the support column from this, supports the connection between basis and the changeover portion, has reduced the use of bolt and the trouble of trompil, has made things convenient for the installation and the later stage inspection maintenance of truss tower seat.

Drawings

Fig. 1 is a schematic structural diagram of a wind turbine tower according to embodiment 1 of the present invention.

Fig. 2 is a schematic longitudinal sectional view of a truss tower according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a truss tower base according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of a cross tube assembly and a support platform according to embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of a transition section and a prestressed cable assembly according to embodiment 1 of the present invention.

Fig. 6 is a schematic longitudinal sectional view of a transition section and a prestressed cable assembly according to embodiment 1 of the present invention.

Fig. 7 is a schematic structural view of a cross section of a connection collar according to embodiment 2 of the present invention.

Fig. 8 is a longitudinal sectional structure diagram of a transition section and a prestressed cable assembly according to embodiment 3 of the present invention.

Fig. 9 is a schematic structural view of a truss tower base according to embodiment 4 of the present invention.

Description of the reference numerals:

1. a truss tower base; 11. a supporting base; 111. a base platform; 112. a foundation pile foundation; 113. an anti-pulling stress cable; 12. supporting the truss; 121. a support pillar; 1211. a column; 122. a cross bar assembly; 1221. a support rail; 1222. a connecting lantern ring; 12221. a first half ring; 12222. a second half ring; 12223. connecting lugs; 12224. a butt joint hole; 12225. a connecting bolt; 123. a support platform; 1231. a manhole; 124. supporting the batter post; 13. a transition section; 131. a transition table; 132. a first flange; 133. a transition convex column; 134. connecting columns; 1341. connecting holes; 135. a second flange; 14. a pre-stressed cable assembly; 141. steel strand wires; 142. an anchorage device; 15. a staircase; 2. a tower drum.

Detailed Description

The invention will be more clearly and completely described in the following with reference to the accompanying drawings and examples.

Example 1

The embodiment 1 of the application discloses a wind turbine tower, and with reference to fig. 1, the wind turbine tower comprises a truss tower base 1 and a tower barrel 2. The truss tower base 1 is fixed on the ground and used for bearing loads of the tower barrel 2 and the wind generating set, and the tower barrel 2 is fixedly arranged above the truss tower base 1 and used for supporting the blades.

Referring to fig. 1 and 2, the truss tower 1 includes a support base 11 fixed on the ground, a support truss 12 disposed above the support base 11, a transition section 13 disposed at an upper portion of the support truss 12, and a prestressed cable assembly 14 disposed on the support truss 12 for fixing the support truss 12, the support base 11, and the transition section 13. The supporting girder 12 is supported between the supporting base 11 and the transition piece 13 for transferring the load above the supporting girder 12 to the supporting base 11, and the transition piece 13 is used for connecting and supporting the tower 2 above the tower base 1 of the supporting girder 12.

In this embodiment, the supporting foundation 11 is an independent foundation, that is, a plurality of small and independent supporting foundations 11 are arranged below the truss tower base 1, the supporting foundations 11 are not connected, and each supporting foundation 11 is correspondingly located at a contact point between the supporting truss 12 and the ground, so that the use of concrete is reduced, and the cost is saved. In other alternative embodiments, the support base 11 may be an integral gravity base or other suitable base.

Specifically, referring to fig. 1 and 2, a plurality of supporting foundations 11 are provided along the circumference of the truss tower base 1, and each supporting foundation 11 includes a foundation platform 111 for supporting the supporting truss 12 and a foundation pile 112 fixed below the foundation platform 111 and inserted into the ground.

The foundation platform 111 may be formed by cast-in-place, or may be formed by assembling prefabricated components in-place, specifically cast-in-place in this embodiment. When the foundation is installed, the foundation pile foundation 112 is driven into the ground, and then the foundation platform 111 is poured. The shape of the base platform 111 can be designed as required, and in this embodiment, the base platform 111 is in a table shape with a rectangular horizontal cross section. The foundation pile 112 is cylindrical, and the shape of the horizontal section thereof can be designed according to the requirement, and the foundation pile 112 is cylindrical in the embodiment.

It should be noted that "horizontal" herein refers to a direction parallel to the ground.

From this, through set up basic pile foundation 112 in basic platform 111 below, in basic pile foundation 112 inserted the ground, promoted the intensity and the resistance to plucking ability of supporting foundation 11 for wind turbine generator system tower can bear great environmental load, thereby supports the difficult condition that causes supporting foundation 11 not hard up or even breaks away from the ground that is pulled out under the effect of external load of foundation 11.

Wherein, the foundation pile 112 is hollow and is provided with an anti-pulling stress cable 113. One end of the uplift stress cable 113 is fixed at one end of the foundation pile foundation 112 far away from the foundation platform 111, and the other end of the uplift stress cable 113 passes through the foundation pile foundation 112 and is fixed on the foundation platform 111. Thereby further improving the uplift resistance of the support foundation 11 and simultaneously improving the connection strength between the foundation pile base 112 and the foundation platform 111.

Specifically, when the uplift stress cables 113 are installed, one ends of the stress cables are anchored at one end of the foundation pile foundation 112 far away from the foundation platform 111, and the uplift stress cables 113 penetrate into an inner cavity of the foundation pile foundation 112. And a through hole for the pulling-resistant stress cable 113 to penetrate out is reserved when the foundation platform 111 is poured, and a lead penetrating out of the foundation platform 111 is arranged at one end, far away from the bottom of the pile foundation, of the pulling-resistant stress cable 113. After the foundation platform 111 is poured, the pulling-out resistant stress cables 113 are pulled out by the lead wires, and the pulling-out resistant stress cables 113 are fixed on the foundation platform 111.

Referring to fig. 2 and 3, the support truss 12 includes at least three support columns 121 and a cross bar assembly 122 disposed between the support columns 121 for laterally supporting the support columns 121. The support columns 121 are spaced apart and the support columns 121 are arranged along the circumference of the transition section 13. The number of the supporting beams 121 can be designed according to the requirement, and in the embodiment, the number is specifically shown as six supporting beams 121 uniformly spaced along the circumference of the transition section 13. Each support column 121 corresponds to one support base 11, and the bottom of each support column 121 is fixed above the corresponding base platform 111.

The supporting column 121 is vertically disposed and hollow therein for the prestressed cable assembly 14 to pass through. The vertical arrangement here means that the supporting column 121 can be arranged vertically upward perpendicular to the ground or obliquely upward. In this embodiment, the supporting columns 121 are disposed obliquely to the ground, and one ends of the supporting columns 121 far from the ground are close to each other, so that the supporting truss 12 is in a table shape with a small top and a large bottom, thereby increasing the span at the bottom of the supporting truss 12 and enhancing the supporting strength of the supporting truss 12.

Referring to fig. 2 to 4, the supporting columns 121 include a plurality of columns 1211 connected in series, that is, the columns 1211 of each supporting column 121 are vertically connected in series and are located on the same straight line. Therefore, the length of the supporting columns 121 is determined by the number of the joints of the upright 1211, and the length of the supporting columns 121 can be adjusted by adjusting the number of the upright 1211 on each supporting column 121, so that the span and the length of the supporting truss 12 can be adjusted. In particular, in this embodiment, each support column 121 includes two columns 1211.

The upright 1211 can be made of metal, concrete or other materials with appropriate strength and rigidity, and in this embodiment, the upright 1211 is specifically made of concrete, and is preferably a PHC concrete pipe pile, so that large-scale production is facilitated, and a mold and a tool are unified. Compared with a pure steel structure, the cost can be greatly reduced, the transportation is convenient, the bearing capacity is strong, and the use of steel can be reduced.

The post 1211 is hollow inside for mounting the pre-stressed cable assembly 14. The inner cavities of two adjacent columns 1211 on the same support column 121 are communicated with each other, so that the prestressed cable assembly 14 can completely pass through the support column 121 to be connected between the support foundation 11 and the transition section 13.

The cross bar assembly 122 is disposed between the support columns 121 for laterally supporting the support columns 121, i.e. for bearing the stress of the support columns 121 in the horizontal direction, so as to avoid the support columns 121 from shaking as much as possible.

The cross bar assembly 122 includes a plurality of support cross bars 1221, the number of the support cross bars 1221 corresponds to the number of the support columns 121, and each support cross bar 1221 is connected between two support columns 121. Whereby the support cross bar 1221 supports the support columns 121 in the horizontal direction.

Referring to fig. 3 and 4, the crossbar assembly 122 also includes a number of connecting collars 1222 corresponding to the number of support crossbars 1221 and support columns 121. Each connecting collar 1222 is sleeved on one of the columns 1211, and each of the two ends of each supporting cross rod 1221 is connected with one of the connecting collars 1222. Thus, the support rails 1221 of the same rail assembly 122 are connected end-to-end to form a ring that extends circumferentially along the transition section 13. Therefore, when the cross rod assembly 122 is hoisted, all the supporting cross rods 1221 and the connecting lantern rings 1222 of the same cross rod assembly 122 can be installed by hoisting once, and the installation of the cross rod assembly 122 is facilitated.

Wherein the inner diameter of the connecting collar 1222 is slightly larger than the outer diameter of the post 1211 to facilitate the mating of the post 1211 with the connecting collar 1222. In this embodiment, the connection collar 1222 is unitary, i.e., the connection collar 1222 is not detachable. In other alternative embodiments, the connecting collar 1222 may be split, i.e., detachable into two or more pieces.

The inner ring of the connecting collar 1222 is coated with glue for fixing the upright 1211, and after the glue is solidified, the upright 1211 and the connecting collar 1222 are fixedly connected. Preferably, the glue here is an epoxy glue.

The connecting collar 1222 and the support rail 1221 may be detachably connected by bolts, screws, rivets, or may be non-detachably connected by welding, depending on the size of the rail assembly 122. When the crossbar assembly 122 is large, the support crossbar 1221 is removably connected to the connector collar 1222 for ease of transport; when the cross bar assembly 122 is small, the support cross bar 1221 and the connection collar 1222 may be fixed and integrally transported by welding or the like to reduce the trouble of installation.

The number of the cross bar assemblies 122 can be designed according to the requirement, and in this embodiment, two cross bar assemblies 122 are provided, one of the cross bar assemblies 122 is disposed at the top end of the upright 1211 located at the bottom, and the other cross bar assembly 122 is disposed at the top end of the upright 1211 located at the top.

Specifically, a connecting collar 1222 of the cross bar assembly 122 is fitted over the top end of the bottom upright 1211, and the bottom end of the upper upright 1211 is inserted into the connecting collar 1222. Therefore, the connecting collar 1222 realizes the positioning and temporary fixing of the upper upright 1211 when the upright 1211 is hoisted, and the installation of the upright 1211 is convenient. The connecting collar 1222 of the other connecting assembly is fixedly sleeved on the upper end of the upright 1211 positioned above.

Referring to fig. 2 to 4, a supporting platform 123 is further disposed in the supporting truss 12, and the supporting platform 123 is used for placing electrical equipment or other articles, so that the floor area of the wind turbine generator is saved. Specifically, the installation position of the supporting platform 123 can be designed according to the requirement, in this embodiment, the supporting platform 123 is fixed on the cross bar assembly 122 at the joint of the two upright posts 1211, and the supporting platform 123 is horizontally disposed. Therefore, the supporting platform 123 can be hoisted when the cross rod assembly 122 is hoisted, and the supporting platform 123 is convenient to install.

A man hole 1231 is formed in the supporting platform 123, and a stair 15 for people to walk up and down is placed in the man hole 1231, so that workers can overhaul electrical equipment and the like.

Referring to fig. 2 and 5, the transition section 13 includes a transition table 131 and a first flange 132 mounted on the transition table 131. The transition table 131 is the body of the transition section 13 for supporting and connecting components above the truss tower 1. The first flange 132 is used to connect the support post 121 and the prestressed cable assembly 14.

The transition table 131 is in a circular truncated cone shape with a small top and a large bottom to meet the requirement of connecting the tower 2 and the support truss 12. The first flanges 132 are disposed below the transition table, and the number of the first flanges 132 corresponds to the number of the support columns 121 and the prestressed cable assemblies 14.

The end surface of the supporting column 121 axially far from the supporting base 11 abuts against the first flange 132 and is fixed to each other through the prestressed cable assembly 14, so that the supporting column 121 and the transition table 131 are fixedly connected to support the transition table 131. The prestressed cable assembly 14 passes through the support column 121, then passes through the through hole of the first flange 132 and is fixedly connected with the first flange 132. Therefore, the prestressed cable assembly 14 connects the support foundation 11, the support column 121 and the transition section 13, and the fixed installation of the support truss 12 is realized.

Referring to fig. 5, transition convex columns 133 are disposed between the transition table 131 and the first flanges 132, the number of the transition convex columns 133 is the same as that of the first flanges 132, and each transition convex column 133 is correspondingly connected to one first flange 132. Therefore, the length and the structural strength of the transition section 13 are ensured, and meanwhile, the length of the transition table 131 is reduced, so that the consumables and the weight are reduced, and the cost is saved.

In this embodiment, the first flange 132 is fixedly disposed outside the transition boss 133, and the outer diameter of the upright 1211 for connecting the first flange ring 132 is larger than the outer diameter of the transition boss 133. In addition, in other embodiments, the transition convex pillar 133 may be a hollow tubular member, and the first flange 132 is fixedly disposed on the inner circumference of the transition convex pillar 133, where the outer diameter of the upright 1211 for connecting the first flange ring 132 is smaller than the inner diameter of the transition convex pillar 133.

In this embodiment, the transition table 131, the transition convex pillar 133 and the flange are made of metal, and the transition table 131, the transition convex pillar 133 and the flange are connected by welding, and the transition table 131 and the transition convex pillar 133 are smoothly transited. That is, the connection between the transition table 131 and the transition convex pillar 133 is arc-shaped to reduce the break angle between the transition table 131 and the transition convex pillar 133, so that the connection between the transition table 131 and the transition convex pillar 133 is not prone to stress concentration, which is beneficial to the long-term use of the transition section 13.

Referring to FIG. 5, the transition section 13 further includes a second flange 135 disposed above the transition table 131, the second flange 135 has a diameter similar to the upper end of the transition table 131, and the second flange 135 is connected to the tower 2 by bolts.

Referring to fig. 2 and 6, the prestressed cable assembly 14 includes a steel strand 141 and an anchorage 142 provided at one end of the steel strand 141 for anchoring the steel strand 141. In this embodiment, one end of the steel strand 141 is anchored to the first flange 132 through an anchor 142, and the other end of the steel strand 141 passes through the supporting column 121 and is fixed to the supporting base 11.

Wherein, each prestressed cable assembly 14 comprises a plurality of steel strands 141 and a plurality of anchors 142 corresponding to the steel strands 141. Each steel strand 141 of the same prestressed cable assembly 14 passes through the corresponding supporting column 121 and is parallel to the corresponding supporting column 121, and the steel strands 141 of the same prestressed cable assembly 14 are uniformly arranged along the inner circumference of the supporting column 121. Thereby allowing the prestressed cable assembly 14 to be more uniformly stressed.

The installation mode of the wind turbine tower in embodiment 1 of the present application is as follows:

1. transporting the component parts of the tower 2 and the truss tower base 1 to the site; wherein the tower 2 is transported in sections to the site.

2. Manufacturing a supporting base 11;

21. fixing one end of the uplift stress cable 113 at the bottom end of the foundation pile foundation 112, driving the foundation pile foundation 112 into the ground and penetrating the uplift stress cable 113 through the pile foundation;

22. pouring a foundation platform 111, fixing the uplift stress cable 113 on the foundation platform 111 after the foundation platform 111 is brought to be solidified, reserving a pore passage for installing the uplift stress cable 113 and the prestressed cable assembly 14 on the foundation platform 111, and not backfilling the local part of the foundation bearing platform;

in addition, the lower end of the steel strand 141 of the prestressed cable assembly 14 can be embedded into the foundation platform 111 in advance, more than part of the lower end is reserved on the ground, and the lower end penetrates into the inner cavity of the upright 1211 when the upright 1211 is installed;

3. installing a support truss 12;

31. respectively assembling two transverse pipe assemblies, and preparing a support platform 123 for assembling;

32. hoisting the upright 1211 to the foundation platform 111, and finishing positioning adjustment of the single upright 1211 by using a supporting tool (a diagonal brace with adjustable length); the positioning and installation of the upright 1211 of other bottom layers are sequentially completed by the same method;

33. coating epoxy glue on the inner part of the horizontal pipe assembly, which is contacted with the connecting sleeve 1222 and the upright 1211, and integrally hoisting the horizontal pipe assembly below to the top end of the upright 1211 at the bottom layer;

34. after the epoxy glue is solidified, hoisting and positioning of the upper-layer upright 1211 are completed, and at the moment, the positioning tool can be fixed on the transverse pipe assembly on the bottom-layer upright 1211; integrally hoisting the upper horizontal pipe assembly to the top end of the upper upright 1211;

35. after the epoxy glue is solidified, the positioning tool of the upright 1211 can be removed.

36. Hoisting the transition section 13 to the top of the upright 1211 of the upper layer, and aligning the first flange 132 of the transition section 13 with the inner cavity of the connecting collar 1222 of the upper layer;

37. and guiding the steel strands 141 to the flange holes of the upper transition section 13 from the preformed holes at the bottom of the foundation by using lead wires, and sequentially completing the installation of all the steel strands 141. And finally, tensioning the steel strand 141 according to requirements to finish anchor sealing and foundation landfill.

4. Installing a tower barrel 2; the tower 2 is bolted to the second flange 135.

Besides the above construction scheme, the corresponding horizontal pipe assemblies and the upright 1211 can be combined into a plurality of truss sections, and the truss sections can be hoisted in the whole section, so that the use of positioning inclined struts during the installation of the high-altitude upright 1211 can be reduced.

Example 2

The wind turbine tower in this embodiment is substantially the same as that in embodiment 1, and the difference is that:

referring to fig. 7, in the present embodiment, the connecting collar 1222 includes a first half ring 12221 and a second half ring 12222, the first half ring 12221 and the second half ring 12222 are semi-cylindrical, and the first half ring 12221 and the second half ring 12222 are detachably connected. Thus, when the collar 1222 is installed, the first and

second halves

12221 and 12222 are moved toward each other and hug the posts 1211, and the first and

second halves

12221 and 12222 are secured. This allows for easier installation than the integral collar 1222, while eliminating the need to disassemble the collar 1222 without first disassembling the support post 121.

Specifically, each of the first half-ring 12221 and the second half-ring 12222 has two engaging lugs 12223, and each of the engaging lugs 12223 has an engaging hole 12224. When the first half ring 12221 and the second half ring 12222 are assembled, the connecting lugs 12223 of the first half ring 12221 and the connecting lugs 12223 of the second half ring 12222 are fitted to each other, the abutting holes 12224 of the two opposite connecting lugs 12223 are aligned with each other, and the connecting bolts 12225 are simultaneously inserted into the two aligned connecting holes 1341, thereby achieving the detachable connection of the first half ring 12221 and the second half ring 12222.

Example 3

The wind turbine tower in this embodiment is basically the same as that in embodiment 1, and the difference is that:

referring to fig. 8, in the present embodiment, the transition section 13 includes a transition table 131 and a connecting column 134. The transition table 131 and the connecting column 134 are integrally cast and formed by concrete. The number of the connecting columns 134 corresponds to the number of the prestressed cable assemblies 14, and each connecting column 134 is provided with a plurality of corresponding connecting holes 1341 through which the steel strands 141 pass. When the support truss 12 is installed, the steel strands 141 pass through the connection holes 1341 and are anchored to the connection columns 134.

In this embodiment, the transition table 131 is hollow, and the connecting posts 134 are circumferentially and uniformly spaced around the inner circumference of the transition table 131. In addition, in other embodiments, the attachment post 134 may also be disposed at the outer periphery of the transition table.

Example 4

referring to fig. 9, in the present embodiment, the support base 11 is a gravity type base. The cross bar assembly 122 is further provided with a plurality of supporting batter posts 124, one end of each supporting batter post 124 is fixed on the supporting post 121, and the other end of each supporting batter post 124 is fixed on the supporting cross bar 1221. Thereby, the cross bar assembly 122 and the support columns 121 form a fence-like structure together, and the structural strength of the truss tower base 1 is improved.

While specific embodiments of the present application have been described above, it will be understood by those skilled in the art that this is by way of illustration only, and that the scope of the present application is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and principles of this application, and these changes and modifications are intended to be included within the scope of this application.

Claims

1. A truss tower mount, comprising:

the supporting base is used for being fixedly connected with the ground;

the supporting truss is connected between the supporting foundation and the transition section and used for supporting the transition section;

2. The truss tower of claim 1 wherein the pre-stressed cable assembly comprises a steel strand and an anchor, wherein one end of the steel strand is fixedly connected with the support foundation, and the other end of the steel strand passes through the support column and is fixedly connected with the anchor; the anchorage device is installed on the transition section.

3. The truss tower of claim 2 wherein each said prestressed cable assembly includes a plurality of said steel strands, said plurality of said steel strands being uniformly disposed about said support column circumference.

4. The truss tower of claim 2 or 3 wherein the steel strands are parallel to the corresponding support columns.

5. The truss tower of claim 1 wherein the transition section includes a transition table for supporting components above the truss tower and a first flange for connecting the prestressed cable assembly; the first flanges are fixed on the transition table and correspond to the prestressed cable assemblies one by one; the first flange is abutted against the end face of one end, far away from the supporting base, of the supporting column, and the prestressed cable assembly penetrates through the supporting column and the first flange to fix the supporting column and the first flange.

6. The truss tower of claim 5 wherein the transition section further comprises transition studs in one-to-one correspondence with the support posts for connection of the support posts; the transition convex columns are arranged on the lower side of the transition table and are connected with the first flanges in a one-to-one corresponding mode.

7. The truss tower of claim 6 wherein said transition table and said transition post are smoothly transitioned.

8. The truss tower base of claim 1, wherein the transition section comprises a transition table and a connecting column arranged on the transition table, the connecting column corresponds to the prestressed cable assemblies one by one, a connecting hole for the prestressed cable assembly to pass through is formed in the connecting column, and the prestressed cable assembly passes through the connecting hole and is fixed on the connecting column.

9. The truss tower of claim 1 wherein the support truss further comprises a cross bar assembly for laterally supporting the support columns, the cross bar assembly being fixedly disposed between the support columns.

10. The truss tower of claim 9 wherein the cross bar assembly includes a number of support cross bars corresponding to the number of support columns and the support cross bars are connected between adjacent ones of the support columns.

11. The truss tower mount of claim 10 wherein said cross-bar assembly further comprises a connecting collar fixedly disposed about said support post; two ends of the supporting cross rod are respectively and correspondingly fixedly connected to the connecting lantern rings on the two adjacent supporting columns.

12. The truss tower of claim 11 wherein the connecting collar comprises a first half ring and a second half ring, the first half ring and the second half ring hug the outer perimeter of the support column and the first half ring and the second half ring are removably connected.

13. The truss tower of claim 11 wherein an adhesive is disposed between the connector collar and the support post.

14. The truss tower mount of claim 11 wherein each of said support columns includes a like number of columns, said columns on a common support column being vertically connected in series and aligned with one another.

15. The truss tower of claim 14 wherein said connector collars are disposed adjacent two of said columns in series.

16. The truss tower of claim 10 further comprising at least one support platform secured to the cross-bar assembly.

17. The truss tower of claim 1 wherein said support struts are angled such that the cross-sectional area of the upper portion of said support truss is less than the cross-sectional area of the lower portion of said support truss.

18. The truss tower of claim 1 wherein the support foundation includes a foundation platform and a foundation pile foundation secured below the foundation platform for insertion into the ground to secure the foundation platform.

19. The truss tower of claim 18 wherein said foundation pile is provided with uplift cables, one end of said uplift cables being secured to said foundation platform and the other end of said uplift cables being secured to an end of said foundation pile remote from said foundation platform.

20. A wind turbine tower comprising a tower drum, and further comprising a truss tower mount as defined in any one of claims 1 to 19, the tower drum being secured to the truss tower mount.