Auxiliary device for installing foundation anchor bolt of wind generating set and anchor bolt assembly

Abstract

The invention relates to the field of foundations for vertical rods, in particular to a wind generating set foundation anchor bolt installation auxiliary device and an anchor bolt assembly. The auxiliary device comprises a positioning support and an anchor bolt righting assembly, the positioning support comprises stand columns and a cross beam located on the two stand columns, and the anchor bolt righting assembly comprises a guide column in vertical guide fit with the cross beam, holding claws and a lifting elastic device. The telescopic block is provided with upper clamping teeth used for being connected with an upper end thread section of a common anchor bolt in a clamped mode, the holding claws are provided with limiting sliding blocks and are provided with holding elastic devices, and anchor bolt positioning blocks are connected to the lower ends of the holding claws in an inserted mode respectively. The anchor bolt positioning block is provided with an outer peripheral face used for being in positioning fit with an anchor bolt hole of an upper anchor plate and an inner side face used for being in positioning fit with the upper end threaded section, and the anchor bolt positioning block is provided with lower clamping teeth used for being connected with the upper end threaded section of a common anchor bolt in a clamped mode. The problem that a common anchor bolt of an anchor bolt type foundation deflects after being installed on a lower anchor plate is solved.

Description

Technical Field

[0001] The invention relates to the field of foundations for upright poles, and in particular to an auxiliary device for installing foundation anchor bolts of a wind turbine generator set and an anchor bolt assembly. Background Art

[0002] As a clean energy device, the stability of wind turbine installation is an indicator that must be guaranteed. In the prior art, the tower of onshore wind turbines is often fixed with an anchor bolt foundation.

[0003] A Chinese patent application with application publication number CN112726653A and application publication date April 30, 2021 discloses a typical structure of an anchor-bolt foundation. The anchor-bolt foundation includes an upper anchor plate, a lower anchor plate, and positioning anchors and ordinary anchors connected between the upper anchor plate and the lower anchor plate. Among the above-mentioned components, the upper and lower anchor plates are both annular plates, and it is necessary to ensure that the two are coaxial during installation. One end of the positioning anchor is installed on the lower anchor plate, and the other end is connected to the upper anchor plate and supports the upper anchor plate. The upper anchor plate and the lower anchor plate are positioned by multiple positioning anchors to ensure the coaxiality of the two. In the process of constructing the anchor-bolt foundation, the lower anchor plate is first fixed to the embedded part, and then the positioning anchor is installed on the lower anchor plate. After the positioning anchor is installed, the upper anchor plate is hoisted and the upper anchor plate is connected to the positioning anchor. After the positioning anchor connects the upper anchor plate to the lower anchor plate, each ordinary anchor is installed in turn.

[0004] When installing ordinary anchor bolts, since the distance between the upper anchor plate and the lower anchor plate has been determined by the positioning bolts, and the length of the ordinary anchor bolt must be greater than the distance between the upper anchor plate and the lower anchor plate so that the upper end can extend beyond the upper anchor plate to connect the tower, it is necessary to make the upper end outer diameter of the ordinary anchor bolt smaller than the diameter of the ordinary anchor bolt mounting hole provided on the upper anchor plate. When installing the ordinary anchor bolt, first insert the ordinary anchor bolt into the ordinary anchor bolt mounting hole provided on the upper anchor plate in an inclined posture, and when the ordinary anchor bolt is lifted upward until the lower end is located above the lower anchor plate, lower the ordinary anchor bolt so that the lower end of the ordinary anchor bolt is inserted into the ordinary anchor bolt mounting hole provided on the lower anchor plate. After the bottom surface of the locking nut provided at the lower end of the ordinary anchor bolt is in contact with the upper surface of the lower anchor plate, a gasket and a nut are installed under the lower anchor plate toward the lower end of the ordinary anchor bolt to fix the ordinary anchor bolt relative to the lower anchor plate. The above installation method can be found in the "Technical Specifications for Prestressed Foundation Anchor Cage Assemblies of Wind Turbine Generators" - China Renewable Energy Society Group Standard T / CRES0018-2023).

[0005] From the installation process of the ordinary anchor plate introduced above, it can be known that because the diameter of the ordinary anchor bolt installation hole on the upper anchor plate is larger than the outer diameter of the upper end of the ordinary anchor bolt, it is possible to install the upper end of the ordinary anchor bolt into the ordinary anchor bolt installation hole on the upper anchor plate in an inclined posture. This will inevitably lead to a gap between the upper end of the ordinary anchor bolt and the ordinary anchor bolt installation hole provided on the upper anchor plate when the ordinary anchor bolt is fixed relative to the lower anchor plate. During the concrete pouring process and after the concrete solidifies, the upper end of the ordinary anchor bolt will inevitably deviate. When the grouting layer is poured below the bottom of the upper anchor plate, only the upper anchor plate is left as the base surface for connection with the tower flange. The deflection of the ordinary anchor bolt cannot ensure that the ordinary anchor bolt is coaxial with the anchor hole on the upper anchor plate for the upper end of the ordinary anchor bolt to pass through, resulting in the threaded section of the ordinary anchor bolt passing through the anchor hole of the upper anchor plate being unable to align with the flange hole of the tower flange, affecting the connection between the foundation anchor assembly of the wind turbine generator set and the tower.

[0006] In addition, the deflection of ordinary anchor bolts will also lead to the final vertical accuracy of ordinary anchor bolts, change the stress state of ordinary anchor bolts, and thus affect the quality of the foundation of the wind turbine generator set. Summary of the invention

[0007] The object of the present invention is to provide a wind turbine generator foundation anchor bolt installation auxiliary device to solve the problem that ordinary anchor bolts of an anchor bolt type foundation are deflected after being installed on a lower anchor plate.

[0008] At the same time, the purpose of the present invention is also to provide an anchor assembly using the above-mentioned wind turbine generator foundation anchor installation auxiliary device.

[0009] In order to solve the above problems, the wind turbine generator system foundation anchor bolt installation auxiliary device of the present invention adopts the following technical solutions: The auxiliary device for installing anchor bolts for the foundation of a wind turbine generator set comprises a positioning bracket and an anchor bolt straightening assembly, wherein the positioning bracket comprises columns for connecting to the inner and outer sides of an upper anchor plate and a crossbeam located on the two columns, and the anchor bolt straightening assembly comprises a guide column matched with the upper and lower guides of the crossbeam, a claw installed at the lower end of the guide column and a lifting elastic device for driving the guide column to rise, wherein the claw is respectively provided with windows communicating with the inside and outside, a telescopic block is provided in the window, and a threaded section for clamping with the upper end of a common anchor bolt is provided on the inner side surface of the telescopic block The upper clamping teeth are connected, and a limiting slider is arranged on the outer side of the window on the clamping claw, and the limiting slider has a locking position for limiting the outer end of the telescopic block and an unlocking position for staggering the outer end of the telescopic block; the clamping claw is equipped with a clamping elastic device for driving the clamping claw to clamp, and an anchor bolt positioning block is respectively inserted at the lower end of each clamping claw, and the anchor bolt positioning block has an outer peripheral surface for positioning and matching with the anchor bolt hole of the upper anchor plate and an inner side surface for positioning and matching with the upper end thread segment of the ordinary anchor bolt, and a lower clamping tooth for clamping with the upper end thread segment of the ordinary anchor bolt is arranged on the inner side surface of the anchor bolt positioning block.

[0010] Furthermore, the clamping elastic device is a tension spring connected between the clamping claws or a torsion spring acting between the clamping claws and the guide column.

[0011] Furthermore, the lower ends of the two columns are respectively provided with clamping grooves for radially clamping with the corresponding edges of the upper anchor plate.

[0012] Furthermore, one of the two uprights is integrally formed with or fixedly connected to the crossbeam, and the other is detachably connected to the crossbeam via a fastener.

[0013] Furthermore, the fastener is a butterfly bolt.

[0014] Furthermore, one of the upright column and the cross beam detachably connected to the cross beam is provided with a positioning groove, and the other is provided with a positioning block matched with the positioning groove.

[0015] Furthermore, a vertical guide hole is provided on the crossbeam, and the guide column is installed on the crossbeam through the guide hole.

[0016] Furthermore, a radial through slot is provided on the guide column, and the lifting elastic device includes a lifting spring arranged in the through slot, and a supporting pad is provided at the lower end of the lifting spring, and both ends of the supporting pad extend out of the through slot and cooperate with the crossbeam stop.

[0017] Furthermore, the guide holes are square holes, and the guide columns are corresponding square columns.

[0018] Furthermore, a stop platform is provided at the upper end of the inner side surface of the claw for cooperating with the upper end of the ordinary anchor bolt, and a limiting groove is provided at the lower end of the outer side surface of the claw for cooperating with the top surface of the upper anchor plate, and the distance defined between the limiting groove and the stop platform is the standard height of the ordinary anchor bolt protruding from the upper anchor plate.

[0019] Furthermore, a limiting inclined surface is provided on one side of the stop platform for positioning the upper end of the ordinary anchor bolt when the ordinary anchor bolt is inserted obliquely.

[0020] Furthermore, a guiding slope is provided on the outer side surface of the lower end of the anchor bolt positioning block for guiding the anchor bolt positioning block to enter the anchor bolt hole of the upper anchor plate.

[0021] Furthermore, two groups of the anchor bolt straightening components are installed on the crossbeam. When the positioning bracket is installed to the upper anchor plate, the two groups of anchor bolt straightening components correspond to two rows of anchor bolt holes in the radial direction of the upper anchor plate respectively.

[0022] Furthermore, a handle for personnel to operate is provided on the outer side surface of the limit slider.

[0023] Furthermore, the anchor bolt positioning block and the corresponding claw are plug-fitted through a slide groove and a slider respectively arranged on the two, and the slide groove is a dovetail groove.

[0024] Beneficial effect: The wind turbine foundation anchor bolt installation auxiliary device of the present invention is a pioneering invention. When installing an ordinary anchor bolt, the ordinary anchor bolt that is inserted into the anchor bolt hole of the upper anchor plate from bottom to top will be inserted between the claws. Under the action of the clamping elastic device, the upper threaded section of the ordinary anchor bolt will be clamped by the upper clamping tooth on the telescopic block and the lower clamping tooth on the anchor bolt positioning block. At this time, if the ordinary anchor bolt is pulled down, the guide column will overcome the elastic force of the lifting elastic device under the action of the pulling force and descend, and the claws and the anchor bolt positioning block will also descend synchronously until the anchor bolt positioning block is inserted downward into the corresponding anchor bolt hole. The anchor bolt positioning block inserted into the anchor bolt hole will cooperate with the anchor bolt hole through the outer peripheral surface to ensure its own central position in the anchor bolt hole. At the same time, through The inner side cooperates with the upper threaded section of the common anchor bolt to determine the position of the upper end of the common anchor bolt, so that when fixing the lower end of the common anchor bolt, the position of its upper end can be guaranteed to prevent its upper end from tilting; when the lower end of the common anchor bolt is fixed, the limit slider can be moved from the initial locking position to the unlocking position, at which time the constraint on the outer side of the telescopic block disappears, and under the action of the lifting elastic device, it will retract due to the force between the upper clamping tooth and the upper threaded section of the common anchor bolt, losing the connection effect on the common anchor bolt, and the claw and the guide column rise under the action of the lifting elastic device, and the anchor bolt positioning block will separate from the claw and continue to position the upper threaded section of the common anchor bolt. It can be seen from the above description that the wind turbine foundation anchor bolt installation auxiliary device of the present invention solves the problem of the ordinary anchor bolt of the anchor bolt type foundation being deflected after being installed on the lower anchor plate.

[0025] The anchor assembly of the present invention adopts the following technical solutions: The anchor assembly comprises an upper anchor plate, a lower anchor plate, a positioning anchor bolt and a common anchor bolt connected between the upper and lower anchor plates, the upper anchor plate is provided with a wind turbine generator set foundation anchor bolt installation auxiliary device, the wind turbine generator set foundation anchor bolt installation auxiliary device comprises a positioning bracket and an anchor bolt straightening assembly, the positioning bracket comprises a column for connecting to the inner and outer sides of the upper anchor plate and a crossbeam located on the two columns, the anchor bolt straightening assembly comprises a guide column matched with the upper and lower guides of the crossbeam, a claw installed at the lower end of the guide column and a lifting elastic device for driving the guide column to rise, the claws are respectively provided with windows communicating with the inside and outside, and a A telescopic block, wherein an upper tooth for engaging with the upper threaded section of a common anchor bolt is arranged on the inner side surface of the telescopic block, a limiting slider is arranged on the outer side of the window on the claw, and the limiting slider has a locking position for limiting the outer end of the telescopic block and an unlocking position for staggering the outer end of the telescopic block; the claw is provided with a clamping elastic device for driving the claws to clamp, and an anchor bolt positioning block is respectively inserted at the lower end of each claw, the anchor bolt positioning block having an outer peripheral surface for positioning and matching with the anchor bolt hole of the upper anchor plate and an inner side surface for positioning and matching with the upper threaded section of the common anchor bolt, and a lower tooth for engaging with the upper threaded section of the common anchor bolt is arranged on the inner side surface of the anchor bolt positioning block.

[0026] Furthermore, the clamping elastic device is a tension spring connected between the clamping claws or a torsion spring acting between the clamping claws and the guide column.

[0027] Furthermore, the lower ends of the two columns are respectively provided with clamping grooves for radially clamping with the corresponding edges of the upper anchor plate.

[0028] Furthermore, one of the two uprights is integrally formed with or fixedly connected to the crossbeam, and the other is detachably connected to the crossbeam via a fastener.

[0029] Furthermore, the fastener is a butterfly bolt.

[0030] Furthermore, one of the upright column and the cross beam detachably connected to the cross beam is provided with a positioning groove, and the other is provided with a positioning block matched with the positioning groove.

[0031] Furthermore, a vertical guide hole is provided on the crossbeam, and the guide column is installed on the crossbeam through the guide hole.

[0032] Furthermore, a radial through slot is provided on the guide column, and the lifting elastic device includes a lifting spring arranged in the through slot, and a supporting pad is provided at the lower end of the lifting spring, and both ends of the supporting pad extend out of the through slot and cooperate with the crossbeam stop.

[0033] Furthermore, the guide holes are square holes, and the guide columns are corresponding square columns.

[0034] Furthermore, a stop platform is provided at the upper end of the inner side surface of the claw for cooperating with the upper end of the ordinary anchor bolt, and a limiting groove is provided at the lower end of the outer side surface of the claw for cooperating with the top surface of the upper anchor plate, and the distance defined between the limiting groove and the stop platform is the standard height of the ordinary anchor bolt protruding from the upper anchor plate.

[0035] Furthermore, a limiting inclined surface is provided on one side of the stop platform for positioning the upper end of the ordinary anchor bolt when the ordinary anchor bolt is inserted obliquely.

[0036] Furthermore, a guiding slope is provided on the outer side surface of the lower end of the anchor bolt positioning block for guiding the anchor bolt positioning block to enter the anchor bolt hole of the upper anchor plate.

[0037] Furthermore, two groups of the anchor bolt straightening components are installed on the crossbeam. When the positioning bracket is installed to the upper anchor plate, the two groups of anchor bolt straightening components correspond to two rows of anchor bolt holes in the radial direction of the upper anchor plate respectively.

[0038] Furthermore, a handle for personnel to operate is provided on the outer side surface of the limit slider.

[0039] Furthermore, the anchor bolt positioning block and the corresponding claw are plug-fitted through a slide groove and a slider respectively arranged on the two, and the slide groove is a dovetail groove.

[0040] Beneficial effect: The anchor assembly of the present invention is an improved invention. By setting up an anchor installation auxiliary device, when installing a common anchor, the common anchor inserted into the anchor hole of the upper anchor plate from bottom to top will be inserted between the claws. Under the action of the clamping elastic device, the upper threaded section of the common anchor will be clamped by the upper clamping teeth on the telescopic block and the lower clamping teeth on the anchor positioning block. At this time, when the common anchor is pulled down, the guide column will overcome the elastic force of the lifting elastic device and descend under the action of the pulling force, and the claws and the anchor positioning block will also descend synchronously until the anchor positioning block is inserted downward into the corresponding anchor hole. The anchor positioning block inserted into the anchor hole will cooperate with the anchor hole through the outer peripheral surface to ensure that it is centered in the anchor hole. The position of the upper end of the ordinary anchor bolt is determined by cooperating with the upper threaded section of the ordinary anchor bolt through the inner side surface, so that when fixing the lower end of the ordinary anchor bolt, the position of its upper end can be guaranteed to prevent its upper end from tilting; when the lower end of the ordinary anchor bolt is fixed, the limit slider can be moved from the initial locking position to the unlocking position, at which time the constraint on the outer side of the telescopic block disappears, and under the action of the lifting elastic device, it will retract due to the force between the upper clamping tooth and the upper threaded section of the ordinary anchor bolt, losing the connection effect on the ordinary anchor bolt, and the claw and the guide column rise under the action of the lifting elastic device, and the anchor bolt positioning block will separate from the claw, and continue to position the upper threaded section of the ordinary anchor bolt. It can be seen from the above description that the wind turbine foundation anchor bolt installation auxiliary device of the present invention solves the problem of the ordinary anchor bolt of the anchor bolt type foundation being deflected after being installed on the lower anchor plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a diagram of the use state of an embodiment of the auxiliary device for installing the anchor bolt of the foundation of the wind turbine generator set of the present invention, and is also a schematic diagram of the structure of an embodiment of the anchor bolt assembly of the present invention; Figure 2 yes Figure 1 A diagram showing the use status of the wind turbine foundation anchor bolt installation auxiliary device from another perspective; Figure 3 yes Figure 2 A schematic diagram of the auxiliary device for installing anchor bolts for foundation of a wind turbine generator set in the state of use after one claw and anchor bolt positioning block are removed; Figure 4 yes Figure 3 A local enlarged view at point A; Figure 5 yes Figure 4 A schematic diagram of the structure of the anchor bolt straightening assembly; Figure 6 yes Figure 5 A schematic diagram of the structure of the anchor bolt straightening assembly without one claw and anchor bolt positioning block; Figure 7 yes Figure 4 Schematic diagram of the coordination between the anchor bolt straightening assembly and the common anchor bolt; Figure 8 It is a schematic diagram of the installation structure of the telescopic block; Fig. 9 yes Figure 8 A schematic diagram of the structure of the limit slider in FIG. Fig.10 yes Fig. 9 Installation diagram of the limit slider in FIG. Fig.11 It is a structural schematic diagram of the anchor bolt positioning block; Fig.12 It is a structural schematic diagram of the anchor bolt positioning block from another perspective; Fig.13 It is a structural diagram of one of the columns and beams of the positioning bracket; Fig.14 It is a schematic diagram of the structure of a column; Fig.15 yes Fig.14 A schematic diagram of the structure of the columns in another perspective; Fig.16 It is a structural schematic diagram of an embodiment of an anchor bolt assembly of the present invention.

[0042] In the figure: 1, upper anchor plate; 10, anchor hole; 2, lower anchor plate; 3, positioning anchor; 4, ordinary anchor; 40, upper threaded section; 41, locking nut; 5, wind turbine foundation anchor installation auxiliary device; 50, bracket; 501, first clamping frame; 5011, inner support column; 5012, crossbeam; 5013, guide hole; 5014, stopper; 5015, inner clamping groove; 5016, positioning slide groove; 502, outer support column; 5020, outer clamping groove; 51, anchor bolt straightening assembly; 510, guide column; 5101, through groove; 5102, support pad; 511, claw ; 5110, connecting plate; 5111, clamping block; 5112, arc groove; 5113, upper tooth; 5114, upper accommodating chamber; 5115, wedge block; 5116, limiting inclined surface; 5117, limiting notch; 5118, telescopic block; 512, lifting elastic device; 52, anchor bolt positioning block; 520, lower tooth; 521, lower accommodating chamber; 522, wedge groove; 523, conical guide surface; 53, clamping elastic device; 54, hinge shaft; 6, reference line; 7, threaded locking member; 8, limiting slider; 80, sliding part; 81, locking part; 82, limiting member; 83, guide groove; 9, slide groove. DETAILED DESCRIPTION

[0043] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0044] like Figure 1-3 As shown, the anchor bolt assembly includes a positioning anchor bolt 3, a common anchor bolt 4, an upper anchor plate 1 and a lower anchor plate 2. The two ends of the positioning anchor bolt 3 are respectively connected to the upper anchor plate 1 and the lower anchor plate 2. The main function of the positioning anchor bolt 3 is to support the upper anchor plate 1 and make the upper anchor plate 1 coaxial with the lower anchor plate 2. The connection methods of the two ends of the positioning anchor bolt 3 with the upper anchor plate 1 and the lower anchor plate 2 are respectively conventional connection methods in the installation method of the foundation anchor bolt assembly of the wind turbine generator set.

[0045] For example, refer to Figure 1 There are eight positioning anchor bolts 3; two positioning anchor bolts 3 form a group, and the eight positioning anchor bolts 3 are divided into four groups. One group of positioning anchor bolts 3 has two positioning anchor bolts 3, and the two positioning anchor bolts 3 of each group of positioning anchor bolts 3 are arranged at intervals in the same radial direction along the upper anchor plate 1 or the lower anchor plate 2; two adjacent groups of positioning anchor bolts 3 are arranged at intervals along the circumferential direction of the upper anchor plate 1 or the lower anchor plate 2.

[0046] Reference Figure 1-Figure 4The upper anchor plate 1 and the lower anchor plate 2 are both provided with anchor holes 10 with the same aperture. The anchor holes 10 of the upper anchor plate 1 and the lower anchor plate 2 are coaxial, and the aperture of the anchor hole 10 is adapted to the lower end thread section of the ordinary anchor 4. Based on this, in order to enable the upper end of the ordinary anchor 4 to be able to tilt at a certain angle to pass through the anchor hole 10 of the upper anchor plate 1, even if the steel nut at the lower end of the ordinary anchor 4 is tightened, there is still an annulus between the upper end of the ordinary anchor 4 and the hole wall of the corresponding anchor hole on the upper anchor plate, resulting in more or less deflection of the ordinary anchor 4.

[0047] The installation method of the common anchor bolt determines that the diameter of the upper threaded section must be smaller than the diameter of the anchor hole 10 on the upper anchor plate 1. It is also because of this that during the installation of the common anchor bolt 4, the upper end will be deflected after the lower end is fixed. In view of the causes of the above problems, if the annular space between the upper threaded section 40 and the anchor hole 10 can be filled when the lower end of the common anchor bolt 4 is fixed, the positioning of the common anchor bolt 4 can be achieved and it can be constrained in a vertical posture.

[0048] Based on the above-mentioned inventive concept, the present invention proposes a technical solution for an auxiliary device 5 for installing a foundation anchor bolt of a wind turbine generator set, wherein as a basic implementation method, the auxiliary device for installing a foundation anchor bolt of a wind turbine generator set of the present invention includes a positioning bracket and an anchor bolt straightening assembly. The positioning bracket has the function of being connected to the upper anchor plate 1. Since the anchor bolt straightening assembly is installed on the positioning bracket, the positioning bracket also plays a role in positioning the anchor bolt straightening assembly. The positioning function means that when the positioning bracket is installed on the upper anchor plate 1, the anchor bolt straightening assembly will face the anchor bolt hole 10 of the upper anchor plate in the up and down direction, thereby playing a role in positioning the upper threaded section 40 of the ordinary anchor bolt 4.

[0049] The anchor bolt straightening assembly is used to first "capture" the upper threaded section 40 of the ordinary anchor bolt 4 when installing the ordinary anchor bolt 4, and then move downward synchronously with the upper threaded section of the ordinary anchor bolt 4, and install a positioning piece between the upper threaded section 40 and the anchor bolt hole of the upper anchor plate, thereby realizing the positioning of the upper end of the ordinary anchor rod 4.

[0050] In order to achieve the above functions, Figure 1-12 A typical embodiment of the wind turbine generator set foundation anchor bolt installation auxiliary device of the present invention is shown. In this embodiment, the wind turbine generator set foundation anchor bolt installation auxiliary device 5 includes a positioning bracket 50, an anchor bolt straightening assembly 51 and two anchor bolt positioning blocks 52. The positioning bracket 50 can be detachably connected to the upper anchor plate 1 when in use, and the positioning bracket 50 can be removed from the upper anchor plate 1 after use.

[0051] like Figure 5-11As shown, the anchor bolt straightening assembly 51 includes a guide column 510, a clamping elastic device 53 and two clamping claws 511. The guide column 510 can be vertically slidably arranged on the positioning bracket 50. The upper ends of the two clamping claws 511 are respectively hinged to the opposite sides of the guide column 510. The hinge between the clamping claw 511 and the guide column 510 can be realized by a hinge, or by setting a hinge seat on one of the clamping claw and the guide column, and setting a hinge tongue on the other. The function of the clamping elastic device 53 is to provide a driving force for the clamping of the two clamping claws, which can be a tension spring or a torsion spring. When a tension spring is used, the clamping elastic device 53 extends in the horizontal direction, and the two ends are respectively fixed on the two clamping claws 511. The hinge shaft 54 ​​of the clamping claw 511 and the guide column 510 is perpendicular to the extension direction of the clamping elastic device 53, and the two clamping claws 511 can be opened by the ordinary anchor bolt 4. Specifically, the claw 511 includes a connecting plate 5110 and a clamping block 5111. The claw 511 is hinged to the guide column 510 through the upper end of the connecting plate 5110. The two ends of the clamping elastic device 53 are respectively connected and fixed to the two connecting plates 5110. The clamping block 5111 is connected and fixed to the lower end of the connecting plate 5110. The two clamping blocks 5111 are provided with arc grooves 5112 on the sides facing each other, and the arc grooves 5112 on the two clamping blocks form an upper accommodating cavity 5114, which can be used to accommodate the upper end threaded section of the common anchor bolt. The surface of the clamping block 5111 facing away from the arc groove 5112 is flush with the surface of the connecting plate 5110 facing away from the clamping elastic device 53.

[0052] The function of the claws 511 is to clamp the upper threaded section 40 of the common anchor bolt 4 to position the upper end of the common anchor bolt. Therefore, in order to meet this requirement, the number of the claws can be three or more, and it is only necessary that when they are engaged, they can enclose an upper accommodating cavity for positioning the upper end of the common anchor bolt; in addition to using tension springs and torsion springs, the clamping elastic device can also be a spring coil that is hooped around the outside of each claw.

[0053] In addition, the arc groove 5112 on the clamping block 5111 can be a semi-cylindrical groove or a 1 / 3 cylindrical groove, and it is necessary to ensure that the radial positioning can be performed after the ordinary anchor bolt is clamped; each arc groove 5112 vertically penetrates the lower end surface of each claw 511, and the two arc grooves 5112 are used to clamp the upper end threaded section 40 of the ordinary anchor bolt 4. A sliding groove communicated with the arc groove 5112 is opened on the claw 511 along the extension direction of the clamping elastic device 53, and a telescopic block 5118 is slidably arranged in the sliding groove. An upper clamping tooth 5113 is arranged on the inner side surface of the telescopic block 5118. The telescopic block 5118 can be telescoped along the extension direction of the clamping elastic device 53. A locking mechanism 8 is slidably arranged on the claw 511 and is located outside the upper accommodating cavity 5114 and is used to lock the telescopic block 5118 in the arc groove 5112. The telescopic block 5118 is mainly used to clamp with the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4 through the upper clamping tooth 5113 arranged thereon.

[0054] Reference Figure 5-Figure 10 The locking mechanism 8 includes a limit slider 8, a limit piece 82 and a guide groove 83. The guide grooves 83 are provided on the opposite side surfaces of the claw 511 along the horizontal direction perpendicular to the clamping elastic device 53. The guide grooves 83 extend vertically. A limit piece 82 is fixed to the bottom of each guide groove 83. The limit piece 82 can be made of screws and other components, and mainly plays the role of limiting the limit slider 8. The limit slider 8 includes a sliding portion 80 and a locking portion 81. The sliding portion 80 is provided on the locking portion 81 along the opposite sides of the horizontal direction perpendicular to the clamping elastic device 53. The sliding portion 80 and the locking portion 81 are integrated and slidably connected with the guide groove 83, so that the sliding portion 80 can drive the locking portion 81 to slide vertically. The position where the sliding portion 80 and the limiting member 82 in the guide groove 83 are limited and supported is defined as the locking position. When the limiting slider 80 is in the locking position, the locking portion 81 will prevent the telescopic block 5118 from moving outward, so that the telescopic block 5118 remains in the arc groove 5112. At this time, if the upper threaded section of the ordinary bolt is inserted into the arc groove 5112, the upper clamping tooth 5113 on the telescopic block 5118 will clamp the upper threaded section; when the sliding portion 80 is disengaged from the limiting member 82 in the guide groove 83, it will move to the unlocking position. When the limiting slider 8 is in the unlocking position, the locking portion 81 is above the telescopic block 5118, and the blocking state of the telescopic block 5118 is released. At this time, the telescopic block 5118 can be retracted into the slide groove 9 along the axial direction of the clamping elastic device 53, thereby preventing the clamping tooth 5113 on the telescopic block from being stuck in the thread groove of the upper threaded section 40 of the ordinary anchor bolt 44.

[0055] Anchor bolt positioning blocks 52 are respectively installed at the lower ends of the claws, and the upper ends of the two anchor bolt positioning blocks 52 are respectively detachably plug-in connected to the lower ends of the two claws 511. When there is no external force, the anchor bolt positioning blocks 52 are retained on the claws by plugging. When there is a vertical external force, the anchor bolt positioning blocks 52 can be separated from the claws 511 under the action of the external force. Figure 1 , Figure 4 , Figure 6 and Figure 8 The outer diameter of the anchor bolt positioning block 52 is adapted to the inner diameter of the anchor bolt hole 10 of the upper anchor plate 1. The inner cavity of the anchor bolt positioning block 52 can be a semi-cylindrical groove structure. The inner cavities of the two anchor bolt positioning blocks 52 form a lower accommodating cavity 521 for accommodating the upper threaded segment 40 of the ordinary anchor bolt 4. The inner cavity of the anchor bolt positioning block 52 is provided with a lower clamping tooth 520, which is mainly used to clamp with the thread groove of the upper threaded segment 40 of the ordinary anchor bolt 4. When the ordinary anchor bolt 4 is inserted into the lower accommodating chamber 521 and the upper accommodating chamber 5114 in sequence, the two claws 511 are stretched open; when the upper threaded section 40 of the ordinary anchor bolt 4 is adjusted to a vertical state, the two claws 511 are reset under the elastic force of the clamping elastic device 53. At this time, the upper accommodating chamber 5114 and the lower accommodating chamber 521 clamp the upper threaded section 40 of the ordinary anchor bolt 4, and the upper clamping teeth 5113 on the inner side of the telescopic block 5118 and the lower clamping teeth 520 on the inner side of the anchor bolt positioning block are inserted into the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4, so that the ordinary anchor bolt 4 can pull the telescopic block 5118 and the anchor bolt positioning block 52, and make the anchor bolt positioning block 52 enter the anchor bolt hole 10 of the upper anchor plate 1 and cooperate and fix with the anchor bolt hole 10 of the upper anchor plate 1.

[0056] In a typical embodiment, the positioning bracket 50 includes two support columns and a crossbeam 5012 connected to the upper ends of the support columns. One of the two support columns is used to be detachably connected to the inner edge of the upper anchor plate 1, which is the inner support column 5011, and the other is used to be detachably connected to the outer edge of the upper anchor plate 1, which is the outer support column 502; the crossbeam 5012 is located at the upper ends of the two support columns and is used to provide an installation foundation for the anchor bolt straightening assembly. Figure 4 , Figure 13-Figure 15As shown, in a preferred embodiment, the inner support column 5011 of the positioning bracket 50 is integrated with the crossbeam 5012 to form a first clamping frame 501. The bottom of the inner support column 5011 is provided with an inner clamping groove 5015, which is a clamping groove that can be clamped on the inner edge of the upper anchor plate 1 when in use; the crossbeam 5012 is connected to the top of the inner support column 5011. When in use, the crossbeam 5012 extends in the horizontal direction and is located above the upper anchor plate 1. A guide hole 5013 is provided on the crossbeam 5012, which passes through the opposite surface of the crossbeam 5012. The guide hole 5013 is a square hole, and the guide column 510 is a corresponding square column. The guide column 510 vertically slides through the guide hole 5013. A through slot 5101 extending vertically is provided on the column 510. The through slot 5101 penetrates the opposite side of the guide column 510 along the axial direction of the cross beam 5012. A lifting elastic device 512 is provided in the through slot 5101. The lifting elastic device 512 is a spring. The lifting elastic device 512 extends vertically and the upper end is fixed on the guide column 510. The other end of the lifting elastic device 512 is fixedly connected to a support pad 5102. A stopper 5014 is provided in the guide hole 5013. The stopper 5014 is located in the through slot 5101 and can be pressed against the support pad 5102. It can be seen that the guide column 510 can slide vertically on the cross beam 5012 of the first clamping frame 501.

[0057] Reference Figure 4 When in use, the outer support column 502 is clamped on the upper anchor plate 1 and arranged opposite to the first clamping frame 501. The bottom of the outer support column 502 is provided with an outer clamping groove 5020, which is a card groove clamped on the upper anchor plate 1 when in use. The upper end of the outer support column 502 is detachably connected to the end of the cross beam 5012 facing away from the inner support column 5011. Specifically, the detachable connection structure between the outer support column 502 and the inner support column 5011 is as follows: a positioning groove 5016 is provided at the bottom of the end of the beam 5012 away from the inner support column 5011, and the positioning groove 5016 extends along the axial direction of the beam 5012. The upper end of the outer support column 502 is located in the positioning groove 5016 and is slidably adapted to the positioning groove 5016. A connecting structure is provided on the side of the outer support column 502 that is away from the beam 5012, and the connecting structure is used to fix the upper end of the outer support column 502 in the positioning groove 5016.

[0058] In some embodiments, the connection structure includes a threaded locking member 7 used as a fastener, one end of the threaded locking member 7 is threadedly provided in the outer support column 502 along the axial direction of the cross beam 5012, and the end of the threaded locking member 7 is threadedly connected and locked with a threaded hole (not shown) provided in the positioning slot 5016. When the bracket 50 needs to be removed from the upper anchor plate 1, the threaded locking member 7 only needs to be manually rotated to disengage the threaded locking member 7 from the threaded hole in the positioning slot 5016, and the outer support column 502 is pulled outward along the axial direction of the cross beam 5012, so that the outer support column 502 can be disengaged from the first clamping frame 501, so that the first clamping frame 501 and the outer support column 502 can be removed from the upper anchor plate 1, which facilitates the disassembly and assembly of the bracket 50. In order to facilitate the operation of the threaded locking member, the threaded locking member 7 adopts a butterfly bolt, and when operating it, there is no need to use tools such as a wrench.

[0059] Generally, in order to avoid affecting the connection strength between the upper threaded section 40 of the common anchor bolt 4 and the tower flange, the height of the upper end of the common anchor bolt 4 passing through the anchor hole 10 of the upper anchor plate 1 has a certain standard. As a preferred embodiment, in order to reduce the installation requirements of the common anchor bolt 4 and facilitate the installation of the common anchor bolt 4, refer to Figure 2 , Figure 4-Figure 12A stopper is provided at the top of the arc groove 5112 for cooperating with the upper end limit of the ordinary anchor bolt, and a limiting inclined surface 5116 is provided on one side of the stopper. The inclination direction of the limiting inclined surface 5116 is the same as the direction in which the upper end threaded section 40 of the ordinary anchor bolt 4 is inserted into the lower accommodating cavity 521 and the upper accommodating cavity 5114 in sequence after obliquely passing through the anchor hole 10 of the upper anchor plate 1. The connecting line between the hole center of the anchor hole 10 of the upper anchor plate 1 and the center of the upper anchor plate 1 is set as the reference line 6, and the hinge shaft 54 ​​of the hinged connection between the claw 511 and the guide column 510 is parallel to the reference line 6. In this way, after the upper end threaded section 40 of the ordinary anchor bolt 4 obliquely passes through the anchor hole 10 of the upper anchor plate 1 and enters the lower accommodating cavity 521 and the upper accommodating cavity 5114 in sequence, the upper end threaded section 40 of the ordinary anchor bolt 4 finally contacts the limiting inclined surface 5116. Since the lifting elastic device 512 on the guide column 510 is pressed and contacted with the stopper 5014 fixed in the through groove 5013 on the crossbeam 5012 through the support pad 5102, under the action of the limiting inclined surface 5116, when the common anchor bolt 4 is adjusted to the vertical state, the upper threaded section 40 will push the guide column 510 to move upward, so that the top surface of the common anchor bolt 4 adjusted to the vertical state contacts the top surface in the arc groove 5112. Based on this, a limiting notch 5117 penetrating the lower end surface of the claw 511 is provided on the outer wall of the lower end of the claw 511, and the vertical distance between the top surface of the limiting notch 5117 and the top surface in the arc groove 5112 is set to the standard height of the upper threaded section 40 of the common anchor bolt 4 protruding out of the anchor hole 10 of the upper anchor plate 1. In the process of the common anchor bolt 4 moving downward to drive the anchor bolt positioning block 52 to enter the anchor bolt hole 10 of the upper anchor plate 1, when the top surface of the limiting notch 5117 is in contact with the upper surface of the upper anchor plate 1, the common anchor bolt 4 can be limited to continue to move downward. At this time, the height of the upper threaded section 40 of the common anchor bolt 4 protruding to the outside of the anchor bolt hole 10 of the upper anchor plate 1 is the vertical distance between the top surface of the limiting notch 5117 and the top surface in the arc groove 5112. The vertical distance between the top surface of the limiting notch 5117 and the top surface in the arc groove 5112 is the standard height of the upper threaded section 40 of the common anchor bolt 4 protruding to the outside of the anchor bolt hole 10 of the upper anchor plate 1. Therefore, after the common anchor bolt 4 is installed, it will not affect the standard height of the upper threaded section 40 of the common anchor bolt 4 protruding to the outside of the anchor bolt hole 10 of the upper anchor plate 1, thereby achieving the technical effect of reducing the difficulty of installing the common anchor bolt 4.

[0060] As a preferred embodiment, Figure 8 , Fig.10 , Fig.11 , Fig.12As shown, the detachable plug-in connection structure between the anchor bolt positioning block 52 and the claw 511 adopts the following structure: a wedge-shaped groove 522 is provided on the outer wall surface of the upper end of the anchor bolt positioning block 52, and the wedge-shaped groove is specifically a dovetail groove. A wedge-shaped block 5115 adapted to the wedge-shaped groove 522 is provided at the lower end of the claw 511, and the connection between the anchor bolt positioning block 52 and the claw 511 is realized by plugging and matching the wedge-shaped block 5115 with the wedge-shaped groove 522. When it is necessary to disengage the anchor bolt positioning block 52 from the claw 511, the limit slider 8 is slid upward to disengage the anchor bolt positioning block 52 from the claw 511. Furthermore, a plurality of wedge-shaped grooves 522 are provided, and the plurality of wedge-shaped grooves 522 are arranged at intervals along the circumference of the anchor bolt positioning block 52. A plurality of wedge-shaped blocks 5115 are provided, and the plurality of wedge-shaped blocks 5115 correspond one-to-one to the plurality of wedge grooves 522. This can improve the connection performance between the anchor bolt positioning block 52 and the claw 511, and prevent the anchor bolt positioning block 52 from detaching from the claw 511 under its own gravity.

[0061] In addition, as a preferred embodiment, refer to Fig.12 , a conical guide surface 523, i.e., a guide slope, is provided on the outer wall surface of the lower end of the anchor bolt positioning block 52. The conical guide surface 523 is used to guide the anchor bolt positioning block 52 to enter the anchor bolt hole 10 of the upper anchor plate 1. That is, it can be understood that when the anchor bolt positioning block 52 enters the anchor bolt hole 10 of the upper anchor plate 1 under the pull of the ordinary anchor bolt 4, the conical guide surface 523 facilitates the anchor bolt positioning block 52 to enter the anchor bolt hole 10 of the upper anchor plate 1, ensuring that the anchor bolt positioning block 52 smoothly enters the anchor bolt hole 10 of the upper anchor plate 1.

[0062] When installing the anchor assembly using the auxiliary device of the present invention, the following steps can be followed: first, connect and fix the lower anchor plate 2 to the embedded parts of the prestressed foundation concrete; second, hoist the upper anchor plate 1 and move it above the lower anchor plate 2, connect and fix the upper anchor plate 1 to the lower anchor plate 2 through the positioning anchor bolt 3, and ensure that the upper anchor plate 1 is coaxial with the lower anchor plate 2; third, install the common anchor bolt 4, detachably connect the positioning bracket 50 to the upper anchor plate 1, and make the upper accommodating cavity 5114 formed by the two arc-shaped grooves 5112 and the lower accommodating cavity 521 formed by the inner cavity of the two anchor bolt positioning blocks 52 coaxial with the anchor bolt hole 10 on the upper anchor plate 1 for the common anchor bolt 4 to pass through; at this time, the upper end of the common anchor bolt 4 is obliquely inserted into the anchor bolt hole 10 of the upper anchor plate 1, so that the common anchor bolt 4 The upper end of the anchor bolt 4 is inserted into the lower accommodating chamber 521 and the upper accommodating chamber 5114 in sequence, and the two claws 511 are stretched open; then, the ordinary anchor bolt 4 is lifted and straightened, and the lower end of the ordinary anchor bolt 4 is inserted into the anchor bolt hole 10 of the lower anchor plate 2. At this time, the two claws 511 are reset under the elastic force of the clamping elastic device 53, so that the two anchor bolt positioning blocks 52 are also restored to the initial state along with the claws 511, and the upper end threaded section 40 of the ordinary anchor bolt 4 is located in the upper accommodating chamber 5114 and the lower accommodating chamber 521, and the upper end threaded section 40 of the ordinary anchor bolt 4 is coaxial with the upper accommodating chamber 5114 and the lower accommodating chamber 521, and the upper tooth 5113 and the lower tooth 520 on the telescopic block 5118 are respectively clamped into the thread groove of the upper end threaded section 40 of the ordinary anchor bolt 4; because the claws 511 can As the guide column slides vertically, during the downward movement of the ordinary anchor bolt 4, the ordinary anchor bolt 4 will pull the telescopic block 5118 in the arc groove 5112 to drive the anchor bolt positioning block 52 to enter the anchor bolt hole 10 of the upper anchor plate 1 and cooperate with the anchor bolt hole 10 of the upper anchor plate 1 to be fixed. At this time, the upper threaded section 40 of the ordinary anchor bolt 4 is engaged with the lower snap teeth 520 of the two anchor bolt positioning blocks 52 located in the anchor bolt hole 10 of the upper anchor plate 1. The two anchor bolt positioning blocks 52 are symmetrical about the ordinary anchor bolt 4. The upper threaded section 40 of the ordinary anchor bolt 4 is penetrated by the lower accommodating cavity 521 formed by the inner cavity of the two anchor bolt positioning blocks 52, and the lower snap teeth 520 of the inner cavity of the anchor bolt positioning block 52 are stuck in the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4. The upper threaded section 40 is adapted to the lower accommodating chamber 521, and the outer diameter of the anchor bolt positioning block 52 is adapted to the inner diameter of the anchor bolt hole 10 of the upper anchor plate 1. Therefore, when the anchor bolt positioning block 52 enters the anchor bolt hole 10 of the upper anchor plate 1, the upper threaded section 40 of the ordinary anchor bolt 4 will generate a force on the anchor bolt positioning block 52, and the force causes the outer wall surface of the anchor bolt positioning block 52 to fit and fix with the inner wall of the anchor bolt hole 10 of the upper anchor plate 1, thereby ensuring that the ordinary anchor bolt 4 is coaxial with the anchor bolt hole 10 of the upper anchor plate 1, and effectively avoiding the ordinary anchor bolt 4 from being deflected after being installed on the upper and lower anchor plates 2; after the bottom surface of the locking nut 41 at the lower end of the ordinary anchor bolt 4 is tightly attached to the upper surface of the lower anchor plate 2, a gasket is added under the lower anchor plate 2 and the nut is manually tightened to complete the installation of the ordinary anchor bolt 4;Fourth, unlock the locking mechanism for locking the telescopic block 5118. Since the anchor bolt positioning block 52 and the claw 511 of the anchor bolt straightening assembly 51 are detachably connected, when the guide column 510 is manually pulled upward or under the action of the lifting elastic device, the force of the upper threaded section 40 of the ordinary anchor bolt 4 acting on the telescopic block 5118 will force the telescopic block 5118 to retract into the positioning slot 5016 along the axial direction of the holding elastic device 53, so that the upper tooth 5113 on the telescopic block 5118 is disengaged from the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4, so that the anchor bolt positioning block 52 fixed in the anchor bolt hole 10 of the upper anchor plate 1 can be disengaged from the claw 511. At this time, the positioning bracket 50 is removed from the upper anchor plate 1, and the auxiliary device can be removed from the upper anchor plate 1, so as to facilitate the subsequent connection of the upper anchor plate 1 with the tower flange. ;

[0063] In summary, it can be seen that by adopting the auxiliary device of the present invention, the ordinary anchor bolt 4 of the foundation anchor bolt of the wind turbine generator set can effectively avoid the deflection of the ordinary anchor bolt 4 after being installed on the upper and lower anchor plates 2. In this way, when the grouting layer is poured below the bottom of the upper anchor plate 1, only the upper anchor plate 1 is left as the base surface connected to the tower flange, the ordinary anchor bolt 4 is coaxial with the anchor bolt hole 10 of the upper and lower anchor plates 2, which can ensure that the ordinary anchor bolt 4 is coaxial with the anchor bolt hole 10 on the upper anchor plate 1 for the upper end of the ordinary anchor bolt 4 to pass through, thereby avoiding the threaded section of the ordinary anchor bolt 4 passing through the anchor bolt hole 10 of the upper anchor plate 1 and failing to align with the flange hole of the tower flange, thereby avoiding affecting the connection between the foundation anchor bolt assembly of the wind turbine generator set and the tower, and reducing the difficulty of hoisting the tower of the wind turbine generator set. In addition, after the ordinary anchor bolt 4 is installed, the two anchor bolt positioning blocks 52 limit the deflection of the ordinary anchor bolt 4, thereby greatly improving the final vertical accuracy of the ordinary anchor bolt 4, ensuring that the ordinary anchor bolt 4 is in a good stress state, thereby effectively improving the quality of the foundation of the wind turbine generator set.

[0064] It should be noted that the common anchor bolt 4 can pull the anchor bolt positioning block 52 into the anchor bolt hole 10 of the upper anchor plate 1, mainly because the telescopic block 5118 in the arc groove 5112 on the claw 511 is stuck in the thread groove of the upper threaded section 40 of the common anchor bolt 4. Therefore, when the common anchor bolt 4 pulls the anchor bolt positioning block 52 into the anchor bolt hole 10 of the upper anchor plate 1, the anchor bolt positioning block 52 will not be separated from the claw 511. Of course, the structure of the telescopic block 5118 and the lower clamping tooth 520 is not limited to the attached Figure 8 and attached Fig.11 The structure shown in may also be a protrusion of other structures, which is not limited here.

[0065] Embodiments of the anchor assembly of the present invention: like Figure 1 , 2As shown in Figures 3, 4 and 16, the anchor assembly of the present invention includes an upper anchor plate, a lower anchor plate, a positioning bolt, a common bolt and a wind turbine generator set foundation anchor bolt installation auxiliary device, wherein the wind turbine generator set foundation anchor bolt installation auxiliary device is the wind turbine generator set foundation anchor bolt installation auxiliary device of the present invention, which will not be described in detail here.

[0066] exist Fig.16 In the embodiment shown, there are multiple groups of common anchor bolts 4, one group of common anchor bolts 4 has two, the two common anchor bolts 4 in each group are arranged at the same radial interval of the upper anchor plate 1 or the lower anchor plate 2, and two adjacent groups of common anchor bolts 4 are arranged at the circumferential interval of the upper anchor plate 1 or the lower anchor plate 2. In addition, it should be noted that one anchor hole 10 on the upper anchor plate 1 corresponds to one common anchor bolt 4, and one anchor hole 10 on the lower anchor plate 2 also corresponds to one common anchor bolt 4; one anchor bolt straightening assembly 5 corresponds to one group of common anchor bolts 4, one anchor bolt straightening assembly 51 corresponds to one anchor bolt hole 10 on the upper anchor plate 1 for the common anchor bolt 4 to pass through, and two anchor bolt positioning blocks 52 correspond to one anchor bolt hole 10 on the upper anchor plate 1 for the common anchor bolt 4 to pass through. It can be seen that, in a group of common anchor bolts 4, a wind turbine foundation anchor bolt installation auxiliary device 5 includes a positioning bracket 50, two anchor bolt straightening components 51 and four anchor bolt positioning blocks 52, wherein one anchor bolt straightening component 51 corresponds to two anchor bolt positioning blocks 52, and two anchor bolt positioning blocks 52 correspond to one anchor bolt hole 10 on the upper anchor plate 1 for the common anchor bolt 4 to pass through. In other embodiments, the number of positioning anchor bolts and common anchor bolts can also be arbitrarily arranged as needed.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A wind turbine generator foundation anchor bolt installation auxiliary device, characterized in that: The invention comprises a positioning bracket and an anchor bolt straightening assembly, wherein the positioning bracket comprises columns for connecting to the inner and outer sides of the upper anchor plate and a crossbeam located on the two columns, and the anchor bolt straightening assembly comprises a guide column matched with the upper and lower guides of the crossbeam, a claw installed at the lower end of the guide column and a lifting elastic device for driving the guide column to rise, each claw is respectively provided with a window communicating with the inside and outside, a telescopic block is provided in the window, and an upper clamping tooth for clamping with the upper end threaded section of the ordinary anchor bolt is provided on the inner side surface of the telescopic block, and the claw A limit slider is arranged on the outer side of the window, and the limit slider has a locking position for limiting the outer end of the telescopic block and an unlocking position for staggering the outer end of the telescopic block; the claws are provided with a clamping elastic device for driving the claws to clamp, and anchor bolt positioning blocks are respectively inserted at the lower end of each claw, and the anchor bolt positioning block has an outer peripheral surface for positioning and matching with the anchor bolt hole of the upper anchor plate and an inner side surface for positioning and matching with the upper end threaded section of the common anchor bolt, and a lower clamping tooth for clamping with the upper end threaded section of the common anchor bolt is provided on the inner side surface of the anchor bolt positioning block.

2. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1, characterized in that: The clamping elastic device is a tension spring connected between the clamping claws or a torsion spring acting between the clamping claws and the guide column.

3. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1 or 2, characterized in that: The lower ends of the two columns are respectively provided with clamping grooves for radially clamping with the corresponding edges of the upper anchor plate.

4. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 3, characterized in that: One of the two uprights is integrally formed with or fixedly connected to the cross beam, and the other is detachably connected to the cross beam via a fastener.

5. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 4, characterized in that: The fastener is a butterfly bolt.

6. The wind turbine generator foundation anchor bolt installation auxiliary device according to claim 4, characterized in that: One of the upright column and the cross beam which are detachably connected to the cross beam is provided with a positioning groove, and the other is provided with a positioning block which matches with the positioning groove.

7. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1 or 2, characterized in that: The crossbeam is provided with a vertical guide hole, and the guide column is installed on the crossbeam through the guide hole.

8. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 7, characterized in that: The guide column is provided with a radial through slot, the lifting elastic device comprises a lifting spring arranged in the through slot, the lower end of the lifting spring is provided with a supporting pad, and both ends of the supporting pad extend out of the through slot and cooperate with the crossbeam stop.

9. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 7, characterized in that: The guide holes are square holes, and the guide columns are corresponding square columns.

10. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1 or 2, characterized in that: A stop platform is provided at the upper end of the inner side surface of the claw for cooperating with the upper end of the ordinary anchor bolt, and a limiting groove is provided at the lower end of the outer side surface of the claw for cooperating with the top surface of the upper anchor plate. The distance defined between the limiting groove and the stop platform is the standard height of the ordinary anchor bolt protruding from the upper anchor plate.

11. The wind turbine generator system foundation anchor bolt installation auxiliary device according to claim 10, characterized in that: A limiting inclined surface is arranged on one side of the stop platform for positioning the upper end of the common anchor bolt when the common anchor bolt is inserted obliquely.

12. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1 or 2, characterized in that: The outer side surface of the lower end of the anchor bolt positioning block is provided with a guiding slope surface for guiding the anchor bolt positioning block to enter the anchor bolt hole of the upper anchor plate.

13. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1 or 2, characterized in that: Two groups of anchor bolt straightening assemblies are installed on the crossbeam. When the positioning bracket is installed to the upper anchor plate, the two groups of anchor bolt straightening assemblies correspond to two rows of anchor bolt holes in the radial direction of the upper anchor plate respectively.

14. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1 or 2, characterized in that: A handle for personnel to operate is arranged on the outer side surface of the limit sliding block.

15. The wind turbine generator set foundation anchor bolt installation auxiliary device according to claim 1 or 2, characterized in that: The anchor bolt positioning block and the corresponding claw are plug-in-matched via a slide groove and a slider respectively arranged on the two, and the slide groove is a dovetail groove.

16. An anchor assembly, comprising an upper anchor plate, a lower anchor plate, a positioning anchor bolt and a common anchor bolt connected between the upper and lower anchor plates, characterized in that: The upper anchor plate is provided with a wind turbine generator set foundation anchor bolt installation auxiliary device according to any one of claims 1 to 15.

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