CN111155546A

CN111155546A - Prestressed anchor bolt fan foundation reinforcing device

Info

Publication number: CN111155546A
Application number: CN201911352907.3A
Authority: CN
Inventors: 肖莹; 肖红卫; 华成仁
Original assignee: Hubei Ruihong New Energy Equipment Co ltd
Current assignee: Hubei Ruihong New Energy Equipment Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-05-15

Abstract

The invention relates to a prestressed anchor bolt fan foundation reinforcing device which comprises a concrete cushion layer poured on the surface of bedrock, a concrete foundation poured on the concrete cushion layer, a plurality of rock anchor rods and a plurality of prestressed anchor bolts, wherein the bottom ends of the rock anchor rods and the prestressed anchor bolts penetrate through the concrete cushion layer and extend into the bedrock. The invention has the beneficial effects that: in the fan foundation construction process, through the concrete cushion installation backing plate of pouring in advance, realize bearing the weight of the stability of anchor frame through fixed mounting carrier assembly on the backing plate, the easy to assemble anchor frame, the anchor frame adopts chassis and apical ring to carry on spacingly to the prestressed anchorage bolt, guarantee the stability of being connected between chassis and the apical ring through the gusset plate that sets up, through chassis and bearing roof fixed connection, thereby guarantee the stability of whole anchor frame installation, avoid the concrete foundation to pour the in-process, the skew takes place for the stability of anchor frame.

Description

Prestressed anchor bolt fan foundation reinforcing device

Technical Field

The invention relates to the technical field of wind turbine generator wind turbine foundation construction, in particular to a prestressed anchor bolt wind turbine foundation reinforcing device.

Background

The wind driven generator is a device for converting wind energy into electric energy, and mainly comprises blades, a generator, mechanical parts and electrical parts. According to the difference of rotating shafts, wind driven generators are mainly divided into two types, namely horizontal shaft wind driven generators and vertical shaft wind driven generators, and the horizontal shaft wind driven generators in the current market occupy the mainstream position.

Traditional fan foundation adopts foundation ring and a tower section of thick bamboo to connect, and the concrete in stress concentration area is destroyed easily, and basic concrete fracture under work load, and prestressed anchor bolt formula basis comprises last anchor slab, crab-bolt and pvc pillar, and the crab-bolt runs through basic whole height and through anchor slab with the crab-bolt anchor in the soleplate down, and the construction is convenient relatively, and the basis wholeness is good.

In the process of building a prestressed anchor bolt type foundation on a mountain rock foundation, after an anchor bolt is placed into a bedrock, an anchor plate needs to be fixed at the top end of the anchor bolt, then grouting is conducted on the surface of the bedrock until concrete is contacted with the bottom of the anchor plate, and therefore the building of the concrete foundation is completed.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a prestressed anchor bolt fan foundation reinforcing device to solve the problems that in the construction process of a concrete foundation, an anchor plate is difficult to ensure the level and the position of the anchor plate is deviated.

The technical scheme for solving the technical problems is as follows: a prestressed anchor bolt fan foundation reinforcing device comprises a concrete cushion layer poured on the surface of bedrock, a concrete foundation poured on the concrete cushion layer, a plurality of rock anchor rods and a plurality of prestressed anchor bolts, wherein the bottom ends of the rock anchor rods and the prestressed anchor bolts penetrate through the concrete cushion layer and extend into the bedrock;

the backing plate has been placed to the top middle part level of concrete cushion, be equipped with the fixed stock that runs through the backing plate and extend to the basement in on the backing plate, the top of fixed stock is equipped with first fixation nut, the top fixed mounting of backing plate has carrier assembly, carrier assembly's top fixed mounting has the anchor frame, and wherein the bottom face of anchor frame flushes with the top face on concrete foundation.

Furthermore, the bearing assembly comprises a bearing bottom plate, a support frame and a bearing top plate, the bearing bottom plate is connected with the base plate, and the bearing top plate is erected on the bearing bottom plate through the support frame.

Further, the anchor frame includes chassis, gusset plate and apical ring, the apical ring is established at the top on chassis through a plurality of gusset plate framves.

Further, the top of backing plate and bearing roof is equipped with a plurality of positioning screw down and a plurality of positioning screw on and, a plurality of positioning screw is down the positioning screw correspondence runs through and sets up in the locating hole on bearing the bottom plate, and is a plurality of go up the positioning screw correspondence and run through and set up in the locating hole on the chassis, positioning screw and last positioning screw's top all is equipped with second fixation nut down.

Furthermore, a plurality of welts of support frame, it is a plurality of the welt is central symmetry distribution.

Further, the chassis is discoid, the apical ring is the ring form, chassis and apical ring are all seted up by a plurality of anchor eyes that a plurality of prestressed anchorage tie run through.

The invention has the beneficial effects that: in the fan foundation construction process, through the concrete cushion installation backing plate of pouring in advance, realize bearing the weight of the stability of anchor frame through fixed mounting carrier assembly on the backing plate, the easy to assemble anchor frame, the anchor frame adopts chassis and apical ring to carry on spacingly to the prestressed anchorage bolt, guarantee the stability of being connected between chassis and the apical ring through the gusset plate that sets up, through chassis and bearing roof fixed connection, thereby guarantee the stability of whole anchor frame installation, avoid the concrete foundation to pour the in-process, the skew takes place for the stability of anchor frame.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of a connection structure of the load bearing assembly of the present invention;

FIG. 4 is a schematic structural view of the stand according to the present invention;

fig. 5 is a schematic structural view of the anchor frame of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the concrete foundation comprises a concrete foundation body, 2, a concrete cushion layer, 3, bedrock, 4, a cushion plate, 4a, a lower positioning screw rod, 5, a bearing assembly, 51, a bearing bottom plate, 52, a supporting frame, 521, a lining plate, 53, a bearing top plate, 53a, an upper positioning screw rod, 6, an anchor frame, 61, a chassis, 62, a reinforcing plate, 63, a top ring, 6a, an anchor hole, 7, a rock anchor rod, 8, a pre-stressed anchor bolt, 9, a fixing anchor rod, 9a, a first fixing nut, 10, a positioning hole, 11 and a second fixing nut.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

The present invention provides the following examples:

referring to fig. 1-2, a prestressed anchor bolt wind turbine foundation reinforcing device includes a concrete cushion 2 poured on the surface of a bedrock 3, a concrete foundation 1 poured on the concrete cushion 2, a plurality of rock anchor rods 7 and a plurality of prestressed anchor bolts 8, wherein the bottom ends of the rock anchor rods 7 and the prestressed anchor bolts 8 penetrate through the concrete cushion 2 and extend into the bedrock 3.

Backing plate 4 has been placed to the top middle part level of concrete cushion 2, is equipped with on backing plate 4 to run through backing plate 4 and extend to the fixed stock 9 in the basement rock 3, and the top of fixed stock 9 is equipped with first fixation nut 9a, and the top fixed mounting of backing plate 4 has carrier assembly 5, and carrier assembly 5's top fixed mounting has anchor frame 6, and wherein the bottom face of anchor frame 6 flushes with the top face of concrete foundation 1.

Before pouring concrete foundation 1, 3 places of regional bed rock are corresponded now and concrete cushion 2 is pour, through pour concrete cushion 2 preliminary fixed rock stock 7 and prestressed anchorage bolt 8, install backing plate 4 on concrete cushion 2, bear anchor frame 6 through backing plate 4 installation carrier assembly 5, guarantee the stability of anchor frame 6 installation, make the process of pouring concrete foundation 1, whole anchor frame 6 can effectively guarantee that the level is stable, realize that anchor frame 6 bears the weight of with the stability of pylon of fan tower section of thick bamboo, and from concrete foundation 1 inside increase to whole anchor frame 6 bear the weight of the intensity, it is more even to guarantee that concrete foundation 1 receives the stress, the reliability of whole device has been promoted.

Based on the above embodiment, referring to fig. 3-4, the bearing component 5 includes a bearing bottom plate 51, a supporting frame 52 and a bearing top plate 53, the bearing bottom plate 51 is connected with the backing plate 4, the bearing top plate 53 is erected on the bearing bottom plate 51 through the supporting frame 52, a plurality of lining plates 521 are arranged on the supporting frame 52, the lining plates 521 are distributed in a central symmetry manner, the stability of connection between the bearing bottom plate 51 and the bearing top plate 53 is improved, the supporting frame 52 formed by the lining plates 521 is adopted, the whole bearing component 5 can be fully covered in the concrete pouring process, and the internal strength of the concrete foundation 1 is improved.

Based on the above embodiment, referring to fig. 5, the anchor frame 6 includes a chassis 61, a reinforcing plate 62 and a top ring 63, the top ring 63 is erected on the top of the chassis 61 through the plurality of reinforcing plates 62, the chassis 61 is disc-shaped, the top ring 63 is ring-shaped, and the chassis 61 and the top ring 63 are both provided with a plurality of anchor holes 6a penetrated by the plurality of prestressed anchor bolts 8, so that when the whole anchor frame 6 bears the wind turbine tower and the tower, the whole stress can be dispersed into the whole concrete foundation 1 through the prestressed anchor bolts 8.

Based on the above embodiment, the top of the backing plate 4 and the top bearing plate 53 are respectively provided with a plurality of lower positioning screws 4a and a plurality of upper positioning screws 53a, the plurality of lower positioning screws 4a correspondingly penetrate through the positioning holes 10 formed in the bottom bearing plate 51, the plurality of upper positioning screws 53a correspondingly penetrate through the positioning holes 10 formed in the chassis 61, and the top ends of the lower positioning screws 4a and the upper positioning screws 53a are respectively provided with the second fixing nuts 11.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A prestressed anchor bolt fan foundation reinforcing device comprises a concrete cushion layer (2) poured on the surface of bedrock (3), a concrete foundation (1) poured on the concrete cushion layer (2), a plurality of rock anchor rods (7) and a plurality of prestressed anchor bolts (8), and is characterized in that the bottom ends of the rock anchor rods (7) and the prestressed anchor bolts (8) penetrate through the concrete cushion layer (2) and extend into the bedrock (3);

backing plate (4) have been placed to the top middle part level of concrete cushion (2), be equipped with on backing plate (4) and run through backing plate (4) and extend to fixed stock (9) in bedrock (3), the top of fixed stock (9) is equipped with first fixation nut (9a), the top fixed mounting of backing plate (4) has carrier assembly (5), the top fixed mounting of carrier assembly (5) has anchor frame (6), and wherein the bottom face of anchor frame (6) flushes with the top face of concrete foundation (1).

2. The prestressed anchor bolt wind turbine foundation reinforcing device according to claim 1, wherein the bearing assembly (5) comprises a bearing bottom plate (51), a supporting frame (52) and a bearing top plate (53), the bearing bottom plate (51) is connected with the backing plate (4), and the bearing top plate (53) is erected on the bearing bottom plate (51) through the supporting frame (52).

3. The prestressed anchor bolt wind turbine foundation reinforcing device according to claim 2, wherein the anchor frame (6) comprises a base plate (61), a reinforcing plate (62) and a top ring (63), and the top ring (63) is erected on the top of the base plate (61) through a plurality of reinforcing plates (62).

4. The prestressed anchor bolt fan foundation reinforcing device according to claim 3, wherein a plurality of lower positioning screws (4a) and a plurality of upper positioning screws (53a) are respectively arranged at the top of the base plate (4) and the top bearing plate (53), the plurality of lower positioning screws (4a) correspondingly penetrate through positioning holes (10) formed in the bottom bearing plate (51), the plurality of upper positioning screws (53a) correspondingly penetrate through positioning holes (10) formed in the chassis (61), and second fixing nuts (11) are respectively arranged at the top ends of the lower positioning screws (4a) and the upper positioning screws (53 a).

5. The prestressed anchor bolt wind turbine foundation reinforcing device according to claim 2, wherein the supporting frame (52) comprises a plurality of lining plates (521), and the lining plates (521) are distributed in a central symmetry manner.

6. The prestressed anchor bolt fan foundation reinforcement device of claim 3, wherein the base plate (61) is disc-shaped, the top ring (63) is ring-shaped, and a plurality of anchor holes (6a) penetrated by a plurality of prestressed anchor bolts (8) are formed in both the base plate (61) and the top ring (63).