CN214194627U

CN214194627U - Secondary grouting embedded flange template device and fan foundation

Info

Publication number: CN214194627U
Application number: CN202023097524.7U
Authority: CN
Inventors: 吴强; 贺广零; 徐皇冈
Original assignee: Hunan Sany Smart New Energy Design Co ltd
Current assignee: Hunan Sany Smart New Energy Design Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-14
Anticipated expiration: 2030-12-21

Abstract

The utility model provides an embedded flange template device of secondary grout and fan basis. This embedded flange template device of secondary grout includes: the groove structure is arranged in a closed ring shape and is suitable for being embedded and installed in the surface of the base body of the fan foundation; and the supporting beams are arranged at intervals and connected in the groove structure and are respectively arranged along the radial direction of the groove structure. This embedded flange template device of secondary grout utilizes closed annular groove structure embedding to install within the surface of the basic body of fan basis to reserve out annular secondary grout space on the surface of basic body, and utilize each supporting beam to radially support to fix in groove structure, with the deformation capacity of preapring for an unfavorable turn of events of strengthening groove structure, thereby guarantee that the shaping in annular secondary grout space of reservation is effectual.

Description

Secondary grouting embedded flange template device and fan foundation

Technical Field

The utility model relates to a wind power generation equipment technical field especially relates to an embedded flange template device of secondary grout and fan basis.

Background

The wind turbine foundation is generally disposed at the bottom of the wind turbine tower for mounting and fixing the wind turbine tower. Wind turbine foundations are generally divided into foundation ring type connection structures and anchor bolt type connection structures. After the foundation body of the anchor bolt connection type fan foundation is constructed and before a fan unit is hoisted, a reserved gap between the top surface of the foundation concrete and the bottom surface of the upper anchor plate must be filled with cement-based high-strength grouting material. According to research results, the embedded grouting stress performance is better than that of the boss grouting stress performance, but in the prior art, due to certain difficulty of the embedded grouting construction, a better groove shape is difficult to form when concrete is poured.

SUMMERY OF THE UTILITY MODEL

The utility model provides an embedded flange template device of secondary grout for solve among the prior art because "embedded" grout construction exists certain degree of difficulty, be difficult to form the defect of better groove shape when concreting.

The utility model also provides a fan basis.

The utility model provides an embedded flange template device of secondary grout, include: the groove structure is arranged in a closed ring shape and is suitable for being embedded and installed in the surface of the base body of the fan foundation; and the supporting beams are arranged at intervals and connected in the groove structure and are respectively arranged along the radial direction of the groove structure.

According to the utility model provides a pair of embedded flange template device of secondary grout, groove structure is including connecting into a plurality of groove cell that closed annular set up, every there is a plurality of in the groove cell respectively the spaced range a supporting beam.

According to the utility model provides a pair of embedded flange template device of secondary grout, the recess unit includes:

a base plate configured in an arc-shaped structure;

the inner baffle is vertically connected to the inner side of the bottom plate;

the outer baffle is vertically connected to the outer side of the bottom plate;

and two ends of each supporting beam are respectively and fixedly connected to the inner baffle and the outer baffle.

According to the utility model provides a pair of embedded flange template device of secondary grout, arrange on the bottom plate and have one row at least anchor bolt hole, every row all the anchor bolt hole all arrange in same radius position of groove unit.

According to the utility model provides a pair of embedded flange template device of secondary grout, it has one row of first anchor bolt hole and one row of second anchor bolt hole to arrange on the bottom plate, first anchor bolt hole is followed groove structure's radial one-to-one set up in the inboard of second anchor bolt hole.

According to the utility model provides a pair of embedded flange template device of secondary grout, the bottom plate is suitable for to be installed and is less than the position of basic body upper surface.

According to the utility model provides a pair of embedded flange template device of secondary grout still includes the connecting plate, the connecting plate rigid coupling is in adjacent groove unit's junction.

According to the utility model provides a pair of embedded flange template device of secondary grout, the connecting plate passes through a plurality of connecting bolt locking rigid coupling in adjacent the junction of groove unit.

According to the utility model provides a pair of embedded flange template device of secondary grout, each a supporting beam equidistant range and connect in among the groove structure.

The utility model also provides a fan foundation, including basic body and last anchor slab, still include a plurality ofly to the stock and as above the embedded flange template device of secondary grout, the embedded flange template device embedding of secondary grout is installed within the surface of the basic body on fan foundation, and be located go up the below of anchor slab, each pair the stock passes respectively the embedded flange template device of secondary grout connect in go up the anchor slab with between the bottom of basic body.

The utility model provides an embedded flange template device of secondary grout includes: the groove structure is arranged in a closed ring shape and is suitable for being embedded and installed in the surface of the base body of the fan foundation; and the supporting beams are arranged at intervals and connected in the groove structure and are respectively arranged along the radial direction of the groove structure. This embedded flange template device of secondary grout utilizes closed annular groove structure embedding to install within the surface of the basic body on fan basis to reserve annular secondary grout space on the surface of basic body, and utilize each supporting beam to radially support to fix in groove structure, with the shape ability of preapring for an unfavorable turn of events of strengthening groove structure, thereby guarantee that the shaping in annular secondary grout space of reserving is effectual, structural strength is high, be enough to guarantee that this secondary grout space can form better annular groove shape.

The utility model also provides a fan foundation, including basic body and last anchor slab, still include a plurality ofly to the stock and as above the embedded flange template device of secondary grout, the embedded flange template device embedding of foretell secondary grout is installed within the surface of basic body to be located the below of last anchor slab, each stock passes the embedded flange template device of this secondary grout respectively and connects between the bottom of last anchor slab and basic body. Through setting up foretell embedded flange template device of secondary grout for this fan basis possesses above-mentioned embedded flange template device's of secondary grout whole advantages, specifically no longer gives details here.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the secondary grouting embedded flange template device provided by the present invention;

fig. 2 is a top view of the secondary grouting embedded flange template device provided by the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is a schematic structural diagram of the wind turbine foundation provided by the present invention.

Reference numerals:

1: an inner baffle; 2: an outer baffle; 3: a base plate;

31: a first groove unit; 32: a second groove unit; 4: a support beam;

5: a connecting plate; 6: a connecting bolt; 7: an anchor bolt hole;

71: a first anchor eye; 72: a second anchor eye; 8: a base body;

9: an anchor plate is arranged; 10: secondary grouting gaps; 11: an anchor rod;

12: flange template device.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be described below with reference to fig. 1 to 4, and an embodiment of the present invention provides a secondary grouting embedded flange template device (referred to as "flange template device" for short) and a wind turbine foundation with the flange template device installed therein.

As shown in fig. 1 and 2, the flange form apparatus according to the embodiment of the present invention includes a groove structure and a plurality of support beams 4. The groove structure constitutes a closed annular arrangement and is adapted to be flush-mounted in the surface of the foundation body 8 in order to construct a groove structure in the surface of the foundation body 8 that is lower than the surface of the foundation body 8, thereby leaving an annular secondary grouting void 10 in the surface of the foundation body 8. Each supporting beam 4 spaced arrangement is connected in groove structure to, each supporting beam 4 is respectively along groove structure's radial setting, in order to utilize each supporting beam 4 to radially support to fix in groove structure, thereby strengthen groove structure's the deformability of preapring for an unfavorable turn of events, and then guarantee that the shaping in annular secondary grout space 10 of reserving out is effectual, and structural strength is high, is enough to guarantee that this secondary grout space 10 can form better annular groove shape.

Preferably, the supporting beams 4 are arranged at equal intervals and connected in the groove structure, so as to ensure that each supporting beam 4 can uniformly provide supporting force for the groove structure, ensure that the radial support of the annular groove structure is more balanced, and prevent deformation.

In some embodiments, as shown in fig. 2, the groove structure comprises a plurality of groove units which can be connected into a closed ring shape, and a plurality of support beams 4 are arranged in each groove unit at intervals. A closed annular groove structure is formed by continuously connecting a plurality of groove units, so that the production and the assembly of the flange template device are facilitated.

Preferably the flange formwork arrangement further comprises a web 5. The connecting plate 5 is fixedly connected with the joint of the adjacent groove units. As shown in fig. 3, the connecting plate 5 is fixedly fastened to the joint of the adjacent groove units by a plurality of connecting bolts 6. In particular, in the embodiment of the present invention, it is preferable to arrange two symmetrical groove units to be connected with each other to form the above-mentioned annular groove structure, that is, the first groove unit 31 and the second groove unit 32 as shown in fig. 2 and fig. 3, and the first end of the first groove unit 31 and the first end of the second groove unit 32 are connected with each other and fixedly connected to a connecting plate 5 by four connecting bolts 6 at the connecting portion. The connecting bolts 6 are preferably fixed at the four corners of the connecting plate 5 in a locking manner, so that the connecting plate 5 can be closely fixed on the bottom plate 3 of the groove. This structural arrangement can further improve the joint strength of adjacent recess unit.

It can be understood that the connecting bolt 6 can be replaced by connecting pieces such as rivets, screws and studs, and similarly, the connecting plate 5 can be directly welded on the bottom plate 3 of the adjacent groove unit, as long as the groove unit can be reliably fixedly connected and the connection strength of the groove structure can be ensured to meet the grouting requirement of the fan foundation. It should be understood that the flange template device can be more conveniently disassembled and assembled in the grouting operation process of the fan foundation by fixedly connecting the connecting plates 5 through the connecting pieces.

In some embodiments, as shown in fig. 1 and 2, the groove unit includes a bottom plate 3, an inner barrier 1, and an outer barrier 2. The bottom plate 3 is constructed in an arc-shaped structure so as to be easily spliced into an annular groove structure. It is preferable that the bottom plate 3 is adapted to be installed at a position lower than the upper surface of the base body 8 so that the bottom plate 3 is subsided with respect to the upper surface of the base body 8. Interior baffle 1 vertical connection is in the inboard of bottom plate 3, and outer baffle 2 vertical connection is in the outside of bottom plate 3 to utilize interior baffle 1, bottom plate 3 and outer baffle 2 equipment to constitute foretell groove structure. Wherein, the two ends of each supporting beam 4 are respectively and fixedly connected to the inner baffle plate 1 and the outer baffle plate 2, so as to utilize the supporting beams 4 to provide radial supporting force along the groove structure between the inner baffle plate 1 and the outer baffle plate 2, namely radial supporting force of the groove unit.

In some embodiments, in order to ensure that the anchor rods 11 can be accurately and reliably inserted into the flange form assembly, it is preferable that at least one row of anchor bolt holes 7 be arranged on the bottom plate 3. Wherein all anchor bolt holes 7 of each row are arranged at the same radial position of the groove unit. In particular, in the embodiment of the present invention, it is preferable that a row of the first anchor holes 71 and a row of the second anchor holes 72 are arranged on the bottom plate 3, wherein the first anchor holes 71 are disposed inside the second anchor holes 72 in a one-to-one correspondence along the radial direction of the groove structure. This structural arrangement can accord with two rows of stock 11 of double-deck annular arrangement that set up in the basic body 8 of fan basis.

As shown in fig. 4, the utility model also provides a fan foundation, including basic body 8 and last anchor slab 9, still include a plurality ofly to stock 11 and as above flange template device 12. Wherein the flange formwork device 12 is embedded in the surface of the foundation body 8 and is positioned below the upper anchor plate 9. Each pair of anchor rods 11 passes through the flange form assembly 12 and is connected between the upper anchor plate 9 and the bottom of the foundation body 8. Through setting up foretell embedded flange template device of secondary grout for this fan basis possesses above-mentioned embedded flange template device's of secondary grout whole advantages, specifically no longer gives details here.

Preferably, a lower anchor plate and a fixing structure for correspondingly fixedly connecting the lower anchor plate are installed at the bottom of the foundation body 8, the top of each pair of anchor rods 11 is fixedly connected to the upper anchor plate 9 and is arranged in the first anchor bolt hole 71 and the second anchor bolt hole 72 of the flange formwork device 12 in a penetrating manner; the bottom of each pair of anchor rods 11 is fixedly connected with the lower anchor plate. This structure can be under the enough high condition of structural strength who guarantees fan foundation anchor bolt connection structure, can set up the groove structure that the anti deformability is strong in the below that the upper surface of fan foundation corresponds to be located last anchor slab 9 to reserve out the secondary grouting space 10 that the structure is reliable and have very strong deformation-preventing ability for the secondary grouting.

The embodiment of the utility model provides an in the structure of fan basis, this flange template device 12's theory of operation and use flow as follows:

firstly, mounting the assembled flange template device 12 below the upper anchor plate 9, adjusting the height of the flange template device 12 to a designed height so as to ensure that the tops of the inner baffle plate 1 and the outer baffle plate 2 of each groove unit of the flange template device 12 are flush with the upper surface of the predicted foundation body 8, and coating a release agent on the bottom surface and the outer side surface of the flange template device 12;

then, respectively installing an anchor plate 9 and each anchor rod 11, and respectively enabling the two rows of anchor rods 11 to respectively penetrate through the two rows of anchor bolt holes 7 of the flange template device 12 one by one;

then, concrete forming the foundation body 8 is poured; after the concrete is finally set, firstly disassembling the upper anchor plate 9 and the flange template device 12, and then assembling the upper anchor plate 9 back, thereby forming a secondary grouting gap 10;

and finally, performing secondary grouting on the secondary grouting gap 10.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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

Claims

1. The utility model provides an embedded flange template device of secondary grout which characterized in that includes:

the groove structure is arranged in a closed ring shape and is suitable for being embedded and installed in the surface of the base body of the fan foundation;

and the supporting beams are arranged at intervals and connected in the groove structure and are respectively arranged along the radial direction of the groove structure.

2. The embedded flange template device of secondary grouting according to claim 1, wherein the groove structure comprises a plurality of groove units which can be connected into a closed ring shape, and a plurality of the support beams are respectively arranged in each groove unit at intervals.

3. The secondary grouting embedded flange formwork apparatus of claim 2, wherein the groove unit comprises:

a base plate configured in an arc-shaped structure;

the inner baffle is vertically connected to the inner side of the bottom plate;

the outer baffle is vertically connected to the outer side of the bottom plate;

4. The secondary grouting embedded flange template device according to claim 3, wherein at least one row of anchor bolt holes is arranged on the bottom plate, and all the anchor bolt holes of each row are arranged at the same radius position of the groove unit.

5. The secondary grouting embedded flange template device according to claim 4, wherein a row of first anchor bolt holes and a row of second anchor bolt holes are arranged on the bottom plate, and the first anchor bolt holes are arranged on the inner side of the second anchor bolt holes in a one-to-one correspondence along the radial direction of the groove structure.

6. The secondary grouting embedded flange template device of claim 3, wherein the bottom plate is adapted to be installed at a position lower than the upper surface of the foundation body.

7. The embedded flange template device of secondary grouting according to claim 2, further comprising a connecting plate, wherein the connecting plate is fixedly connected to the connection position of the adjacent groove units.

8. The secondary grouting embedded flange template device according to claim 7, wherein the connecting plate is fixedly locked at the joint of the adjacent groove units by a plurality of connecting bolts.

9. A secondary grouting embedded flange form assembly according to any one of claims 1 to 8, wherein the support beams are arranged at equal intervals and connected in the groove structure.

10. A wind turbine foundation comprising a foundation body and an upper anchor plate, and further comprising a plurality of pairs of anchor rods and the secondary grouting embedded flange form device according to any one of claims 1 to 9, wherein the secondary grouting embedded flange form device is embedded and installed within the surface of the foundation body and located below the upper anchor plate, and each pair of anchor rods respectively penetrate through the secondary grouting embedded flange form device and are connected between the upper anchor plate and the bottom of the foundation body.