Fan foundation anchor bolt cage positioning and mounting device

Abstract

The utility model provides a fan foundation anchor bolt cage positioning and installing device which comprises a hydraulic rod, a sleeve, an elastic supporting assembly and an ejector rod. A sleeve is movably arranged in the upper portion of the hydraulic rod and serves as a telescopic rod section of the hydraulic rod. An ejector rod is arranged in the center of the upper end of the sleeve; the ejector rod is used for penetrating into an anchor bolt hole of an upper anchor plate; an elastic supporting assembly is arranged on the periphery of the ejector rod. The elastic supporting assembly is used for supporting the upper anchor plate; after the elastic supporting assembly is pressed downwards, the upper end of the ejector rod is exposed. The lower end of the hydraulic rod is arranged on the lower anchor plate, and the hydraulic rod, the sleeve, the ejector rod and anchor bolt holes of the upper anchor plate and the lower anchor plate are coaxially arranged. The problems that in the prior art, observation needs to be conducted one by one, it is ensured that a plurality of anchor bolt holes in the upper anchor plate are aligned with anchor bolts one by one, but the upper anchor plate shakes on a crane, and the alignment difficulty is increased are solved; according to the utility model, the upper anchor plate can be quickly and accurately mounted and placed.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan equipment construction, and in particular relates to a positioning and installation device for a fan foundation anchor cage. Background Art

[0002] In recent years, in order to develop low wind speed areas, the height of wind turbine towers has been continuously increased, and the connection method between wind turbine towers and wind turbine foundations has also changed; from the original foundation ring connection to an anchor bolt connection, avoiding the stress concentration phenomenon that occurs during the foundation ring connection.

[0003] The prestressed anchor foundation does not pour the anchor and concrete together. It is composed of an upper anchor plate, a lower anchor plate, an anchor, a PVC protective pipe, etc. The anchor is isolated from the concrete with a PVC protective pipe between the upper and lower anchor plates, and it must be sealed. During the pouring process, water cannot enter the protective pipe to avoid corrosion to the anchor. When the anchor is subjected to tension, the part above the lower anchor plate of the anchor will be evenly stressed. The entire anchor is an elastic body without an interface between the elastic part and the rigid part, thus avoiding stress concentration. Since prestress is applied to the anchor, the concrete foundation is always under pressure. Therefore, the wind turbine foundation using prestressed anchors will not experience stress concentration on the concrete on both sides of the foundation ring and cause damage.

[0004] In the construction of prestressed anchor bolt foundation of wind turbine, it is necessary to install the lower anchor plate first, and then install the tooling ring and anchor bolt after the installation of the lower anchor plate is completed, and then pour the anchor bolt concrete; after the concrete pouring is completed, the tooling ring is removed and the upper anchor plate is installed. The upper anchor plate needs to be hoisted by a crane, and the direction is adjusted directly on the crane so that the anchor bolt hole opened on the upper anchor plate is aligned with the anchor bolt. Then the crane drops the upper anchor plate so that the anchor bolt hole of the upper anchor plate is completely aligned with the anchor bolt to complete the placement. However, the upper anchor plate is in a shaking state on the crane. After the crane drives the upper anchor plate to adjust the direction and align it, it begins to descend until the anchor bolt is completely aligned with the anchor hole of the upper anchor plate. However, it is difficult to ensure that the upper anchor plate does not shake during the descent process. Since there are many anchor holes on the upper anchor plate, so many anchor holes need to be completely aligned with the anchor rods below. The staff needs to observe the alignment of these numerous anchor rods and anchor rod holes at the same time, making the installation process of the entire upper anchor plate difficult and time-consuming. Utility Model Content

[0005] The utility model provides a wind turbine foundation anchor cage positioning and installation device, wherein a push rod is arranged on the device, and the device is installed above the lower anchor plate, and the position of the push rod arranged on the device just corresponds to the position of the anchor bolt on the lower anchor plate; during operation, the device is distributed in a cross structure, and a tooling device provided by the utility model is respectively arranged at the four vertices of the cross structure. When installing the upper anchor plate, it is only necessary to align the anchor bolt holes of the four tooling push rods corresponding to the upper anchor plate with the push rod on the tooling and install it on the tooling, and the elastic device on the push rod is pressed down, and the upper end part of the push rod enters the anchor bolt hole of the upper anchor plate, that is, the upper anchor plate is accurately placed, and the installation of other anchor bolts is performed one by one to complete the installation of the upper anchor plate.

[0006] In order to achieve the above technical objectives, the utility model is implemented through the following technical solutions:

[0007] A wind turbine foundation anchor cage positioning and installation device, comprising: a hydraulic rod, a sleeve, an elastic support assembly, and a top rod;

[0008] A sleeve is movably arranged inside the upper part of the hydraulic rod, and the sleeve serves as a telescopic rod section of the hydraulic rod;

[0009] A push rod is arranged at the center of the upper end of the casing; the push rod is used to penetrate into the anchor bolt hole of the upper anchor plate;

[0010] An elastic support assembly is arranged on the periphery of the mandrel; the elastic support assembly is used to support the upper anchor plate; after the elastic support assembly is pressed down, the upper end of the mandrel is exposed;

[0011] The lower end of the hydraulic rod is arranged on the lower anchor plate, and the hydraulic rod, the sleeve, the push rod, and the anchor bolt holes of the upper and lower anchor plates are arranged coaxially.

[0012] Preferably, the elastic support assembly comprises: a movable upper support plate, a spring support, and a fixed lower support plate;

[0013] The fixed lower support plate is arranged at the lower end of the mandrel and is fixedly connected to the mandrel; the movable upper support plate is movably arranged on the mandrel and is located above the fixed lower support plate;

[0014] A spring support is arranged between the movable upper support plate and the fixed lower support plate.

[0015] Preferably, the spring support is arranged around the top rod in a circle.

[0016] Preferably, the lower end of the push rod is fixedly connected to the center of the upper surface of the fixed lower support plate; a through hole is provided at the center of the movable upper support plate, and the movable upper support plate is arranged on the push rod by using the through hole.

[0017] Preferably, a damping rod is arranged in the middle of the spring support, the upper end of the damping rod is arranged on the lower surface of the movable upper support plate, and the lower end of the damping rod is arranged on the upper surface of the fixed lower support plate.

[0018] Preferably, the surface of the sleeve is marked with height scale markings.

[0019] Preferably, a detachable positioning block is provided on the sleeve.

[0020] Preferably, the positioning block includes two semicircular clamping rings that are mirror-symmetrical; fixing ears are provided on both sides of the semicircular clamping rings, and screw holes are provided on the fixing ears; the two semicircular clamping rings are closed and wrapped around the sleeve, and then the fixing ears are aligned, and the entire positioning block is fixed to the sleeve by bolts in the screw holes.

[0021] Preferably, a lifting knob is provided on the hydraulic rod, which is used to keep the sleeve and the hydraulic rod fixed.

[0022] Preferably, a bottom bolt is arranged at the center of the lower end of the hydraulic rod; the bottom bolt corresponds to the position of the anchor bolt hole on the lower anchor plate.

[0023] Preferably, the hydraulic rod is fixed to the lower anchor plate through lateral support; the lateral support comprises: a clamping seat, a fastening screw and a hydraulic rod clamp;

[0024] Two clamping seats are symmetrically arranged, and a hydraulic rod clamp is arranged between the two clamping seats;

[0025] A fastening screw is arranged on the clamping seat.

[0026] The beneficial effects of the utility model are:

[0027] The utility model provides a positioning and installation device for the anchor bolt cage of the wind turbine foundation, and the bottom bolt on the hydraulic rod is placed in the anchor bolt hole of the lower anchor plate, and the position of the top rod at the upper end of the casing is exactly the position of the anchor bolt; an elastic support component is also arranged at the top rod; during operation, only 4 positioning and installation devices provided by the utility model need to be evenly distributed above the assembled lower anchor plate, and then the anchor bolt holes corresponding to the four top rods on the upper anchor plate are aligned with the four top rods and placed, so that the upper anchor plate can be quickly positioned and installed; the need in the prior art to observe one by one to ensure that the several anchor bolt holes on the upper anchor plate are aligned one by one with the anchor bolts, but the upper anchor plate shakes on the crane, which increases the difficulty of alignment; the utility model can realize the rapid and accurate installation and placement of the upper anchor plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1It is a side view of the use state of the wind turbine foundation anchor cage positioning and installation device provided by the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the wind turbine foundation anchor cage positioning and installation device provided by the utility model;

[0031] Figure 3 yes Figure 1 A schematic diagram of a local A enlargement;

[0032] Figure 4 It is a schematic diagram of the lateral support structure of the utility model;

[0033] Figure 5 This is a schematic diagram of the positioning block structure of the utility model;

[0034] Figure 6 This is a schematic diagram of the arrangement position of the wind turbine foundation anchor cage positioning and installation device provided by the utility model;

[0035] Figure 7 It is a schematic diagram of the structure of the upper and lower anchor plates and the anchor bolt holes thereon of the utility model;

[0036] In the accompanying drawings, the structural names represented by the reference numerals are:

[0037] 1-hydraulic rod, 101-lifting knob, 102-bottom bolt, 2-casing, 201-positioning block, 2011-clamping ring, 2012-fixed ear, 3-spring support, 4-movable upper support plate, 5-fixed lower support plate, 6-jacket, 7-upper anchor plate, 8-lower anchor plate, 9-lateral support, 901-fixed seat, 902-fastening screw, 903-hydraulic rod clamp, 10-upper anchor plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example 1

[0040] A wind turbine foundation anchor cage positioning and installation device, comprising: a hydraulic rod 1, a sleeve 2, an elastic support assembly, and a top rod 6;

[0041] like Figure 2As shown, a sleeve 2 is movably arranged inside the hydraulic rod 1, and the sleeve 2 serves as the telescopic rod section of the hydraulic rod 1; the internal structure of the hydraulic rod 1 and the hydraulic lifting principle of the hydraulic rod 1 belong to the prior art and will not be repeated here; the function provided by the hydraulic lifting structure in this embodiment is to adjust the height spacing between the upper anchor plate 10 and the lower anchor plate 8 by using the hydraulic lifting mechanism after the crane puts the upper anchor plate in place.

[0042] A push rod 6 is arranged at the center of the upper end of the casing 2. The push rod 6 in this embodiment is arranged as a cylindrical structure. The outer diameter of the push rod 6 should be slightly smaller than the inner diameter of the anchor hole so that the push rod 6 can pass through the anchor hole.

[0043] An elastic support assembly is arranged on the periphery of the top rod 6; the elastic support assembly is used to support the upper anchor plate 10; after the elastic support assembly is pressed down, the upper end of the top rod 6 is exposed;

[0044] In this embodiment, the elastic support assembly is configured as an elastic member structure, which may be a spring or other elastic structure or component, and the elastic member structure is arranged on both sides of the top rod 6; when the elastic support assembly is not subjected to external force, the uppermost end of the elastic support assembly is higher than the upper end of the top rod 6 or is flush with the upper end of the top rod 6;

[0045] The lower end of the hydraulic rod 1 is arranged on the lower anchor plate 8, and the hydraulic rod 1, the casing 2, the top rod 6, and the anchor holes of the upper and lower anchor plates are arranged coaxially. The coaxial arrangement here means that the centers of the above components are all located on the same vertical line;

[0046] The wind turbine foundation anchor bolt cage positioning and installation device provided in this embodiment is installed on the lower anchor plate 8 after the lower anchor plate 8 and the anchor bolts are installed. Figure 6 As shown, at least four devices are installed on the lower anchor plate 8, and the four devices should be evenly distributed. The lower anchor plate 8 is circular, so the angle between the installation positions of the four positioning and installation devices should be 90°. This can ensure that the four installation and positioning devices can be balanced when bearing the pressure of the upper anchor plate 10, avoiding tilting caused by uneven force.

[0047] Since the center of the hydraulic rod 1 and the top rod 6 are on the same axis as the anchor holes of the upper and lower anchor plates, they are also on the same axis as the anchor bolts of the wind turbine foundation anchor bolt cage; during installation, align the bottom center of the hydraulic rod 1 with the center of the anchor hole on the lower anchor plate 8; as long as the bottom center of the hydraulic rod 1 is aligned with the center of the anchor hole of the lower anchor plate 8, the hydraulic rod 1, the sleeve 2, and the top rod 6 are on the same axis, which is also the axis of the anchor bolt setting position. It can be understood that the position of the four top rods 6 at this time is the position of the four anchor bolts of the wind turbine foundation anchor bolt cage.

[0048] When installing and placing the upper anchor plate 10, the crane suspends the upper anchor plate 10 above the positioning and installation device and then adjusts the direction of the upper anchor plate 10. The anchor holes of the upper anchor plate 10 corresponding to the four top rods 6 are selected, and the crane slowly lowers the upper anchor plate 10. At this time, it is only necessary to pay attention to whether the four top rods 6 are aligned with the corresponding anchor holes on the upper anchor plate 10 until the top rods 6 are inserted into the corresponding anchor holes; when the four top rods 6 are all inserted into the corresponding anchor holes, the other anchor holes on the upper anchor plate 10 are also matched with the anchors accordingly.

[0049] When the upper anchor plate 10 contacts the elastic support assembly during the descent process, the elastic support assembly begins to be pressed downward, and the head end of the push rod 6 gradually inserts into the anchor bolt hole of the upper anchor plate 10, completing the alignment and placement of the upper anchor plate 10.

[0050] The positioning and mounting device in this embodiment is arranged on the lower anchor plate 8 through lateral support and remains fixed to the lower anchor plate 8.

[0051] The positioning and installation device provided in this embodiment does not need to pay attention to the alignment between all the anchor holes and the anchor bolts of the upper anchor plate 10; it only needs to pay attention to the alignment between four of the anchor holes and the top rod 6 to complete the matching alignment of the anchor holes and the anchor bolts on the upper anchor plate 10, making the installation and placement of the upper anchor plate 10 more accurate and quick.

[0052] Example 2

[0053] Based on Example 1, the elastic support assembly used to support the upper anchor plate 10 in Example 1 adopts elastic parts such as symmetrical springs arranged on both sides of the top rod 6; when the upper anchor plate 10 is aligned and installed, the lower bottom surface of the upper anchor plate 10 will contact the upper end of the elastic support assembly during the descent process, pressing down the elastic support assembly, but in Example 1, the support only relies on two elastic parts, and its support stability may be insufficient, resulting in weak support or the elastic parts being offset and tipping over.

[0054] like Figure 3 As shown, in this embodiment, the optimally arranged elastic support assembly includes: a movable upper support plate 4, a spring support 3, and a fixed lower support plate 5;

[0055] The fixed lower support plate 5 is arranged at the lower end of the top rod 6 and is fixedly connected to the top rod 6; the movable upper support plate 4 is movably arranged on the top rod 6, and the movable upper support plate 4 can move up and down on the surface of the top rod 6; the movable upper support plate 4 is located above the fixed lower support plate 5;

[0056] A spring support 3 is provided between the movable upper support plate 4 and the fixed lower support plate 5, and the spring support 3 is also provided on the left and right sides of the top rod 6; in the elastic support assembly provided in Example 2, during the descent of the upper anchor plate 10, the anchor hole is aligned with the top rod 6, and the lower bottom surface of the lower anchor plate 8 first contacts the upper surface of the movable upper support plate 4, and as the descent progresses, the top rod 6 penetrates into the anchor hole. Due to the provision of the fixed lower support plate 5 and the movable upper support plate 4, the entire elastic support assembly will provide more stable support for the upper anchor plate 10.

[0057] As a preferred embodiment, in order to make the elastic support more stable, the spring support 3 is arranged around the top rod 6 to provide more support points for the support of the lower anchor plate 8. Such a support method will be more stable. When the anchor plate descends and contacts the spring support, the spring support 3 will not tilt.

[0058] As a preferred embodiment, the lower end of the push rod 6 is fixed to the center of the upper surface of the fixed lower support plate 5; and a through hole is provided at the center of the movable upper support plate 4, and the movable upper support plate 4 is arranged on the push rod 6 by using the through hole. The center of gravity of the connection structure between the push rod 6 and the fixed lower support plate 5 coincides, further improving the stability of the entire elastic support assembly.

[0059] Example 3

[0060] Based on the embodiment 1, the whole device is fixed to the lower anchor plate 8 by the lateral support 9. The structure of the lateral support 9 in this embodiment is as follows: the lateral support 9 includes: a clamping seat 901, a fastening screw 902 and a hydraulic rod clamp 903;

[0061] Two clamping seats 901 are symmetrically arranged, and a hydraulic rod clamp 903 is arranged between the two clamping seats 901; the hydraulic rod clamp 903 is composed of two half semicircular clamps that are mirror-symmetrical, and is locked by a fastening screw 902; this hydraulic rod clamp 903 can just cover the surface of the hydraulic rod 1;

[0062] A fastening screw 902 is disposed on the fixing seat 901 .

[0063] After the hydraulic rod 1 is placed on the lower anchor plate 8, two clamping seats 901 are respectively arranged on both sides of the hydraulic rod 1, and then the hydraulic rod 1 is placed in the hydraulic rod clamp 903, and the hydraulic rod clamp 903 is fastened to the hydraulic rod 1 by the fastening screw 902. In this way, the entire device can be stably arranged on the lower anchor plate 8.

[0064] Example 4

[0065] Based on Example 3, the wind turbine foundation anchor cage positioning and installation device is fixed to the lower anchor plate through an external lateral support device;

[0066] In order to further enhance the fixing strength between the positioning and installation device and the lower anchor plate, based on the lateral support structure in Example 3, a bottom bolt 102 is arranged at the center of the lower end of the hydraulic rod 1; and the bottom bolt 102 corresponds to the position of the anchor hole on the lower anchor plate 8; in this way, when installing the hydraulic rod 1 of the placement device, the bottom bolt 102 at the bottom of the hydraulic rod 1 is first inserted into the anchor hole on the surface of the lower anchor plate 8, where the bottom bolt 102 is a screw rod, and then a nut is used for the first fixation; then the lateral support 9 structure in Example 3 is used for the second fixation.

[0067] Example 5

[0068] Based on Example 1, when the upper anchor plate 10 is placed on the top of the casing 2, the cooperation between the hydraulic rod 1 and the casing 2 is essentially to adjust the distance between the upper anchor plate 10 and the lower anchor plate 8; this is achieved by driving the upper anchor plate 10 to rise and fall through the hydraulic rod 1.

[0069] In this embodiment, a lifting knob 101 is provided on the hydraulic rod 1, which is used to keep the casing 2 fixed to the hydraulic rod 1. The lifting knob 101 here is essentially a structural design of a screw rod and a knob. The screw rod passes through the side wall of the hydraulic rod 1 to reach the casing 2. After the upper anchor plate 10 is lowered into place, the screw rod is screwed in to press against the casing 2, and the casing 2 will not be able to continue to descend at this time; however, four positioning and installation devices are required to realize the positioning and installation of the upper anchor plate 10, and it is necessary to ensure that the lifting height of each hydraulic rod 1 is consistent, so that the upper anchor plate 10 is horizontal and the anchor bolt hole on it can be aligned with the anchor bolt.

[0070] Therefore, a height scale mark is marked on the surface of the sleeve 2, and a positioning block 201 is detachably provided on the sleeve 2.

[0071] The positioning block 201 includes two semicircular clamping rings that are mirror-symmetrical; fixed ears 2012 are provided on both sides of the semicircular clamping rings, and screw holes are provided on the fixed ears 2012; the two semicircular clamping rings are closed and wrapped around the sleeve 2, and then the fixed ears 2012 are aligned, and the entire positioning block 201 is fixed to the sleeve 2 by bolts in the screw holes.

[0072] During operation, according to the required spacing between the upper anchor plate 10 and the lower anchor plate 8, the positioning block 201 is installed at the corresponding position according to the scale on the casing 2; then the casing 2 is lowered, and when the positioning block 201 reaches the upper end of the hydraulic rod 1, it indicates that the distance between the upper anchor plate 10 and the lower anchor plate 8 is just accurate.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0074] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wind turbine foundation anchor cage positioning and installation device, characterized in that: include: Hydraulic rod, casing, elastic support assembly, ejector rod; A sleeve is movably arranged inside the upper part of the hydraulic rod, and the sleeve serves as a telescopic rod section of the hydraulic rod; A push rod is arranged at the center of the upper end of the casing; the push rod is used to penetrate into the anchor bolt hole of the upper anchor plate; An elastic support assembly is arranged on the periphery of the mandrel; the elastic support assembly is used to support the upper anchor plate; after the elastic support assembly is pressed down, the upper end of the mandrel is exposed; The lower end of the hydraulic rod is arranged on the lower anchor plate, and the hydraulic rod, the sleeve, the push rod, and the anchor bolt holes of the upper and lower anchor plates are arranged coaxially.

2. A wind turbine foundation anchor cage positioning and installation device according to claim 1, characterized in that: The elastic support assembly includes: a movable upper support plate, a spring support, and a fixed lower support plate; The fixed lower support plate is arranged at the lower end of the mandrel and is fixedly connected to the mandrel; the movable upper support plate is movably arranged on the mandrel and is located above the fixed lower support plate; A spring support is provided between the movable upper support plate and the fixed lower support plate; The spring support is arranged around the top rod in a circle.

3. A wind turbine foundation anchor cage positioning and installation device according to claim 2, characterized in that: The lower end of the push rod is fixedly connected to the center of the upper surface of the fixed lower support plate; a through hole is provided at the center of the movable upper support plate, and the movable upper support plate is arranged on the push rod by using the through hole.

4. A wind turbine foundation anchor cage positioning and installation device according to claim 2, characterized in that: A damping rod is arranged in the middle of the spring support, the upper end of the damping rod is arranged on the lower surface of the movable upper support plate, and the lower end of the damping rod is arranged on the upper surface of the fixed lower support plate.

5. A wind turbine foundation anchor cage positioning and installation device according to claim 1, characterized in that: The surface of the sleeve is marked with height scales; a detachable positioning block is arranged on the sleeve.

6. A wind turbine foundation anchor cage positioning and installation device according to claim 5, characterized in that: The positioning block comprises two mirror-symmetrical semicircular clamping rings; both sides of the semicircular clamping rings are provided with fixed ears, and screw holes are provided on the fixed ears; the two semicircular clamping rings are closed and then covered on the sleeve.

7. A wind turbine foundation anchor cage positioning and installation device according to claim 1, characterized in that: A lifting knob is arranged on the hydraulic rod, which is used to keep the sleeve and the hydraulic rod fixed.

8. A wind turbine foundation anchor cage positioning and installation device according to claim 7, characterized in that: A bottom bolt is arranged at the center of the lower end of the hydraulic rod; the bottom bolt corresponds to the position of the anchor bolt hole on the lower anchor plate.

9. A wind turbine foundation anchor cage positioning and installation device according to claim 8, characterized in that: The hydraulic rod is fixed to the lower anchor plate through lateral support; the lateral support includes: a clamping seat, a fastening screw and a hydraulic rod clamp; Two clamping seats are symmetrically arranged, and a hydraulic rod clamp is arranged between the two clamping seats; A fastening screw is arranged on the clamping seat.

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