CN211776329U

CN211776329U - Anti-inclination support of wind driven generator in goaf

Info

Publication number: CN211776329U
Application number: CN202020179261.5U
Authority: CN
Inventors: 赵雪娟
Original assignee: Tangshan University
Current assignee: Tangshan University
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-10-27
Anticipated expiration: 2030-02-18

Abstract

The utility model discloses a collecting space area aerogenerator anti support that inclines, including dismantling the aerogenerator stand of connecting on the basis, have a plurality of adjustment units in aerogenerator stand and basic junction along the circumference interval structure of aerogenerator stand, the basis is through a plurality of stock anchors on the rock. The utility model has the characteristics of it is stable, reliable, practical for improve aerogenerator's anti tilting capability, and improve factor of safety simultaneously. The utility model is suitable for a technical field of aerogenerator anti slope.

Description

Anti-inclination support of wind driven generator in goaf

Technical Field

The utility model belongs to the technical field of the anti slope of aerogenerator, specifically speaking relates to a collecting space area aerogenerator anti support that inclines.

Background

In the place where China has abundant mineral resources, the continuous exploitation of the mineral resources in the past decades causes the bearing stratum of the ground to be thinned, the bearing capacity to be weakened and even the ground to collapse. In recent years, with the enhancement of environmental awareness, green and pollution-free clean energy is receiving more and more attention, wherein wind power generation is one of the clean energy. In order to utilize abundant wind energy resources in mountainous regions above a goaf, fans in some places are built above the goaf, wind driven generators belong to high-rise structures, the fans can generate large uneven settlement deformation under the action of wind loads with variable directions, the fans are very sensitive to inclination caused by mining settlement, in order to ensure safe use of the wind driven generators, the inclination value of a foundation is generally required to be ensured not to exceed 4 per thousand, and if the inclination value of the fans exceeds 4 per thousand, how to ensure that the fans can be safely used continuously becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stable, reliable, practical collecting space area aerogenerator anti support that inclines for improve aerogenerator's anti ability of inclining, and improve factor of safety simultaneously.

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

an anti-inclination support of a wind driven generator in a goaf comprises a wind driven generator stand column detachably connected to a foundation, a plurality of adjusting units are constructed at the joint of the wind driven generator stand column and the foundation at intervals along the circumferential direction of the wind driven generator stand column, and the foundation is anchored on a rock through a plurality of anchor rods.

Furthermore, an upper anchor plate and a lower anchor plate are respectively constructed at the bottom end of the wind driven generator stand column and the upper end of the foundation, and the upper anchor plate and the lower anchor plate are connected through a plurality of vertically pre-embedded bolts in the foundation and fastened through nuts matched with the pre-embedded bolts.

Furthermore, the adjusting unit comprises a reinforced concrete retaining wall buttress constructed on the basis, a wedge-shaped adjusting block and a wedge-shaped adjusting block sliding seat which are matched with each other are arranged between the upper anchor plate and the lower anchor plate, and a jacking piece is fixedly arranged between the wedge-shaped adjusting block and the reinforced concrete retaining wall buttress.

Furthermore, the bottom surface of the wedge-shaped adjusting block is an inclined surface which is inclined inwards and upwards and extends along the radial direction of the wind driven generator upright post, the upper surface of the slide seat of the wedge-shaped adjusting block is matched with the bottom surface of the wedge-shaped adjusting block, and when the jacking and extending piece jacks and extends the wedge-shaped adjusting block to pass through the radial direction of the wind driven generator upright post, the top surface of the wedge-shaped adjusting block is kept horizontal.

Further, the jacking piece is a jack.

Furthermore, a gasket layer is arranged between the wedge-shaped adjusting block and the upper anchor plate in a padded mode.

Furthermore, a protective cover is arranged at the upper ends of the plurality of adjusting units, the inner edge of the protective cover is buckled on the outer surface of the lower part of the upright post of the wind driven generator, and the outer edge of the protective cover is buckled on the outer surfaces of the plurality of adjusting units.

Further, a cylindrical base is constructed in the center of the foundation, and the wind driven generator upright post is installed on the base.

Furthermore, a cushion layer is laid between the foundation and the rock.

Furthermore, a plurality of fixing holes corresponding to the anchor rods are vertically formed in the rock, one end of each anchor rod is inserted into the corresponding fixing hole and fixed through cement mortar poured into the corresponding fixing hole, and the other end of each anchor rod is embedded in the foundation.

The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the utility model adds the anchor rod below the foundation, thereby increasing the anti-overturning capability of the foundation and resisting the additional bending moment increased when the foundation inclination exceeds the allowable value; the utility model discloses circumference interval structure along the aerogenerator stand at aerogenerator stand and basic junction has a plurality of adjustment units for aerogenerator stand gradient becomes adjustable type, according to wind-powered electricity generation basis level observed value, when the basis takes place to incline and surpass the admissible value, through the adjustment unit who adjusts corresponding department, with the realization to the adjustment of aerogenerator stand gradient, and then guarantee that the fan support is in the horizontality, ensure that basic slope value is within 4 thousandths.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a gasket according to an embodiment of the present invention;

FIG. 4 is a top view of the wedge-shaped adjusting block according to the embodiment of the present invention;

FIG. 5 is a side view of the wedge-shaped adjusting block according to the embodiment of the present invention;

FIG. 6 is a top view of the wedge-shaped adjusting block slide according to the embodiment of the present invention;

FIG. 7 is a top view of the wedge-shaped adjusting block slide according to the embodiment of the present invention;

fig. 8 is a schematic view of a partial plan view of a gasket according to an embodiment of the present invention;

FIG. 9 is a schematic view of a partial plan view of a wedge adjustment block in accordance with an embodiment of the present invention;

FIG. 10 is a schematic view of a partial plan view of a wedge adjuster slide according to an embodiment of the present invention;

fig. 11 is a plan view of an anchor rod according to an embodiment of the present invention;

fig. 12 is the utility model discloses a structural schematic that rock and stock are connected.

Labeling components: 1-embedded bolt, 2-nut, 3-upper anchor plate, 4-spacer layer, 5-wedge-shaped adjusting block, 6-wedge-shaped adjusting block sliding seat, 7-lower anchor plate, 8-angle steel, 9-jack, 10-protective cover, 11-reinforced concrete retaining wall buttress, 12-foundation, 13-wind driven generator upright post, 14-anchor rod, 15-base, 16-fixing hole, 17-rock and 18-cushion layer.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.

The utility model discloses a collecting space area aerogenerator anti support that inclines, as shown in fig. 1-12, including dismantling aerogenerator stand 13 of connection on basis 12, this basis 12 is through the 14 anchors of a plurality of stock on rock 17, and the circumference interval structure along aerogenerator stand 13 at aerogenerator stand 13 and the 12 junction of basis has a plurality of adjustment units. Wherein the foundation 12 has a cylindrical base 15 at the center thereof, and the wind turbine upright 13 is mounted on the base 15. The principle of the utility model is that: by additionally arranging the anchor rods 14 below the foundation 12, the anti-overturning capacity of the foundation 12 is increased, and the additional bending moment increased when the foundation 12 inclines beyond an allowable value is resisted; the utility model discloses circumference interval structure along aerogenerator stand 13 at aerogenerator stand 13 and basic 12 junction has a plurality of adjustment units, make aerogenerator stand 13 gradient become adjustable type, according to wind-powered electricity generation basis 12 level observed value, when basic 12 takes place to incline and surpass the admissible value, through the adjustment unit who adjusts corresponding department, in order to realize the adjustment to aerogenerator stand 13 gradient, and then guarantee that the fan support is in the horizontality, ensure basic 12 slope value within 4 thousandths.

As a preferred embodiment of the present invention, as shown in fig. 11 and 12, the anchor rod 14 of the present embodiment is an anti-overturning rock 17 anchor rod 14: 40 anchor rods 14 are uniformly arranged at the position 1.5 meters away from the inner side of the outer side line of the foundation 12, the length L =2m of the anchor rods 14, the diameter d =110mm of the anchor rods 14, and reinforcing steel bars of 28mm HRB400 grade are adopted as the reinforcing steel bars of the anchor rods 14. The rock 17 is vertically provided with fixing holes 16 which have the same number and the corresponding positions as the anchor rods 14, one end of each anchor rod 14 is inserted into the corresponding fixing hole 16 and is fixed by cement mortar poured into the corresponding fixing hole 16, and the other end of each anchor rod 14 is embedded in the foundation 12. The cement mortar in the fixed hole 16 is filled by means of jet grouting, and M30 cement mortar doped with an expanding agent is adopted. And in order to connect and transition the foundation 12 and the rock 17, a cushion layer 18 is laid between the foundation 12 and the rock 17, and the cushion layer 18 is a concrete layer.

As a preferred embodiment of the present invention, the bottom end of the wind power generator column 13 and the upper end of the foundation 12 are respectively constructed with an upper anchor plate 3 and a lower anchor plate 7, and the upper anchor plate 3 and the lower anchor plate 7 are connected by a plurality of vertical embedded bolts 1 embedded in the foundation 12 and fastened by nuts 2 engaged with the embedded bolts 1. As shown in fig. 2 to 10, the adjusting unit includes a reinforced concrete retaining wall buttress 11 constructed on a foundation 12, a wedge-shaped adjusting block 5 and a wedge-shaped adjusting block slide 6 which are matched with each other are arranged between an upper anchor plate 3 and a lower anchor plate 7, and a jacking member, which is a 10t jack 9, is fixedly arranged between the wedge-shaped adjusting block 5 and the reinforced concrete retaining wall buttress 11. The bottom surface of the wedge-shaped adjusting block 5 is an inclined surface which is inclined inwards and upwards and extends along the radial direction of the wind driven generator upright post 13, the upper surface of the wedge-shaped adjusting block sliding seat 6 is matched with the bottom surface of the wedge-shaped adjusting block 5, and when the jacking piece jacks the wedge-shaped adjusting block 5 and moves along the radial direction of the wind driven generator upright post 13, the top surface of the wedge-shaped adjusting block 5 is kept horizontal. In order to reduce the frictional resistance of the contact surface between the wedge-shaped adjusting block 5 and the wedge-shaped adjusting block sliding seat 6, graphene coatings are arranged on the two contact surfaces. In the embodiment, a gasket layer 4 is arranged between the wedge-shaped adjusting block 5 and the upper anchor plate 3, and the gasket layer 4 is formed by stacking a plurality of gasket layers 4. The operation process of the adjusting unit in the embodiment comprises (1) adjusting the inclination value of the measured data according to the inclination value of the base 12 when the inclination value exceeds the allowable value by 4 per mill; (2) a jack 9 is arranged at the position of the wedge-shaped adjusting block 5 on the elevation descending side of the foundation 12 at intervals, and the wedge-shaped adjusting block 5 is jacked according to the inclined value; (3) after the wedge-shaped adjusting block 5 is jacked to 10-15mm height, a prepared steel gasket with the thickness of 5mm is added at the position of the wedge-shaped adjusting block 5 which is not jacked; (4) after adding the gasket, jacking the non-jacking wedge-shaped adjusting block 5 in the second step, and adding the gasket at the last jacking wedge-shaped adjusting block 5; (5) repeating the operation in the same way until the inclination value is within 4 per thousand after adjustment; (6) and (4) gradually performing the above 5 steps of operation after the subsequent deformation is increased and exceeds the deformation allowable value with the time until the requirement is met.

As a preferred embodiment of the present invention, as shown in fig. 2, an angle steel 8 is welded between the output end of the jack 9 and the wedge-shaped adjusting block 5, one surface of the angle steel 8 is in surface contact with the upper surface of the base 15, and both surfaces are all horizontal, so that the jack 9 can extend to the wedge-shaped adjusting block 5 along the horizontal sliding, and the angle steel 8 also has a supporting function.

As a preferred embodiment of the present invention, as shown in fig. 2, a protective cover 10 is provided at the upper end of the adjusting units, the inner edge of the protective cover 10 is fastened to the lower outer surface of the wind turbine upright 13, and the outer edge of the protective cover 10 is fastened to the outer surface of the adjusting unit. Therefore, the adjustment unit is prevented from being corroded or damaged by rainwater, sand, dust and the like, and the purpose of protecting the adjustment unit is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.

Claims

1. The utility model provides a goaf aerogenerator support that inclines which characterized in that: the wind driven generator vertical column is detachably connected to a foundation, a plurality of adjusting units are constructed at the joint of the wind driven generator vertical column and the foundation at intervals along the circumferential direction of the wind driven generator vertical column, and the foundation is anchored on a rock through a plurality of anchor rods.

2. The goaf wind turbine anti-tilt support of claim 1, wherein: an upper anchor plate and a lower anchor plate are respectively constructed at the bottom end of the wind driven generator stand column and the upper end of the foundation, and the upper anchor plate and the lower anchor plate are connected through a plurality of vertically embedded bolts in the foundation and fastened through nuts matched with the embedded bolts.

3. The goaf wind turbine anti-tilt support of claim 2, wherein: the adjusting unit comprises a reinforced concrete retaining wall buttress constructed on the basis, a wedge-shaped adjusting block and a wedge-shaped adjusting block sliding seat which are matched with each other are arranged between an upper anchor plate and a lower anchor plate, and a jacking piece is fixedly arranged between the wedge-shaped adjusting block and the reinforced concrete retaining wall buttress.

4. The goaf wind turbine anti-tilt support of claim 3, wherein: the bottom surface of the wedge-shaped adjusting block is an inclined surface which is inclined inwards and upwards and extends along the radial direction of the vertical column of the wind driven generator, the upper surface of the sliding seat of the wedge-shaped adjusting block is matched with the bottom surface of the wedge-shaped adjusting block, and when the jacking and extending piece jacks the wedge-shaped adjusting block and moves along the radial direction of the vertical column of the wind driven generator, the top surface of the wedge-shaped adjusting block is kept horizontal.

5. The goaf wind turbine anti-tilt support of claim 3, wherein: the jacking piece is a jack.

6. The goaf wind turbine anti-tilt support of claim 3, wherein: and a gasket layer is arranged between the wedge-shaped adjusting block and the upper anchor plate in a padded mode.

7. The goaf wind turbine anti-tilt support of claim 1, wherein: the upper ends of the adjusting units are provided with protective covers, the inner edges of the protective covers are buckled on the outer surfaces of the lower portions of the upright posts of the wind driven generator, and the outer edges of the protective covers are buckled on the outer surfaces of the adjusting units.

8. The goaf wind turbine anti-tilt support of claim 1, wherein: the center of the foundation is provided with a cylindrical base, and the wind driven generator upright post is arranged on the base.

9. The goaf wind turbine anti-tilt support of claim 1, wherein: and a cushion layer is laid between the foundation and the rock.

10. The goaf wind turbine anti-tilt support of claim 1, wherein: the rock is vertically provided with a plurality of fixing holes corresponding to the anchor rods respectively, one end of each anchor rod is inserted into the corresponding fixing hole and fixed by cement mortar poured into the corresponding fixing hole, and the other end of each anchor rod is embedded in the foundation.