Wind generating set foundation anchor bolt installation auxiliary device and anchor bolt assembly

Abstract

The utility model 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 utility model solves the problem that the common anchor bolt of the anchor bolt type foundation deflects after being mounted on the lower anchor plate.

Description

Technical Field

[0001] This utility model relates to the field of foundations for pole erection, and in particular to an auxiliary device for installing anchor bolts on wind turbine generator foundations and an anchor bolt assembly. Background Technology

[0002] As a clean energy source, the stability of wind turbine installation is a crucial factor that must be guaranteed. Currently, onshore wind turbine towers are typically secured using anchor bolt foundations.

[0003] Chinese patent application CN112726653A, published on April 30, 2021, discloses a typical anchored foundation structure. This anchored foundation includes an upper anchor plate, a lower anchor plate, and positioning anchors and ordinary anchors connecting the upper and lower anchor plates. Both the upper and lower anchor plates are annular plates, and during installation, they must be coaxial. One end of the positioning anchor is installed on the lower anchor plate, and the other end connects to and supports the upper anchor plate. Multiple positioning anchors are used to position the upper and lower anchor plates, ensuring their coaxiality. During the construction of the anchored foundation, the lower anchor plate is first fixed to the embedded parts. Then, the positioning anchors are installed on the lower anchor plate. After the positioning anchors are installed, the upper anchor plate is hoisted and connected to the positioning anchors. After the positioning anchors connect the upper and lower anchor plates, the ordinary anchors are installed sequentially.

[0004] When installing ordinary anchor bolts, since the distance between the upper and lower anchor plates is determined by the positioning bolts, and the length of the ordinary anchor bolt must be greater than the distance between the upper and lower anchor plates to allow the upper end to extend beyond the upper anchor plate to connect to the tower, the outer diameter of the upper end of the ordinary anchor bolt needs to be smaller than the diameter of the ordinary anchor bolt installation hole on the upper anchor plate. When installing ordinary anchor bolts, first insert the ordinary anchor bolt into the ordinary anchor bolt installation hole on the upper anchor plate in an inclined position. After lifting the ordinary anchor bolt upwards until the lower end is 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 installation hole on the lower anchor plate. After the bottom surface of the locking nut at the lower end of the ordinary anchor bolt is in contact with the upper surface of the lower anchor plate, add a washer and nut to the lower end of the ordinary anchor bolt under the lower anchor plate to fix the ordinary anchor bolt relative to the lower anchor plate. For details on the above installation method, please refer to the "Technical Specification for Anchor Cage Assembly of Prestressed Foundation of Wind Turbine Generator" - China Renewable Energy Society Group Standard T / CRES0018-2023.

[0005] As described above regarding the installation process of ordinary anchor plates, it is evident that only when the diameter of the ordinary anchor bolt mounting hole on the upper anchor plate is larger than the outer diameter of the upper end of the ordinary anchor bolt can the upper end of the ordinary anchor bolt be inserted into the ordinary anchor bolt mounting hole on the upper anchor plate in an inclined manner. This inevitably leads to a gap between the upper end of the ordinary anchor bolt and the ordinary anchor bolt mounting hole 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 has solidified, 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, leaving only the upper anchor plate as the base surface for connection with the tower flange, the deviation of the ordinary anchor bolt cannot guarantee that the ordinary anchor bolt is coaxial with the anchor bolt hole on the upper anchor plate through which the upper end of the ordinary anchor bolt passes. This results in the threaded section of the ordinary anchor bolt protruding from the anchor bolt hole on the upper anchor plate not being aligned with the flange hole of the tower flange, affecting the connection between the wind turbine foundation anchor bolt assembly and the tower.

[0006] In addition, the deviation of ordinary anchor bolts can also affect the final vertical accuracy of ordinary anchor bolts, change the stress state of ordinary anchor bolts, and thus affect the quality of wind turbine generator foundations. Utility Model Content

[0007] The purpose of this utility model is to provide an auxiliary device for installing anchor bolts on wind turbine foundations, so as to solve the problem of ordinary anchor bolts being misaligned after installation on the lower anchor plate in anchor bolt foundations.

[0008] Meanwhile, the purpose of this utility model is also to provide an anchor bolt assembly using the above-mentioned auxiliary device for installing wind turbine foundation anchor bolts.

[0009] To solve the above problems, the auxiliary device for installing wind turbine foundation anchors of this utility model adopts the following technical solution:

[0010] A wind turbine foundation anchor bolt installation auxiliary device includes a positioning bracket and an anchor bolt straightening assembly. The positioning bracket includes columns 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 includes a guide column that guides the crossbeam vertically, a gripper installed at the lower end of the guide column, and a lifting elastic device for driving the guide column upward. The gripper is provided with windows that communicate with each other internally and externally, and a telescopic block is provided in the window. The inner side of the telescopic block is provided with a threaded section for engaging with the upper end of a common anchor bolt. The upper jaw is connected to the locking teeth, and the claw is provided with a limit slider on the outside of the window. The limit slider has a locking position for limiting the outer end of the telescopic block and an unlocking position for offsetting the outer end of the telescopic block. The claw is equipped with a clamping elastic device to drive the claw to clamp together. An anchor bolt positioning block is inserted into the lower end of each claw. The anchor bolt positioning block has an outer peripheral surface for positioning and engaging with the anchor bolt hole of the upper anchor plate and an inner surface for positioning and engaging with the upper threaded section of the ordinary anchor bolt. The inner surface of the anchor bolt positioning block is provided with a lower locking tooth for engaging with the upper threaded section of the ordinary anchor bolt.

[0011] Furthermore, the clamping elastic device is a tension spring connected between the grippers or a torsion spring acting between the grippers and the guide post.

[0012] Furthermore, the lower ends of the two columns are respectively provided with slots for radially engaging with the corresponding edges of the upper anchor plate.

[0013] Furthermore, one of the two columns is integrally or fixedly connected to the crossbeam, while the other is detachably connected to the crossbeam via fasteners.

[0014] Furthermore, the fastener is a wing bolt.

[0015] Furthermore, one of the columns and beams that are detachably connected to the crossbeam is provided with a positioning groove, and the other is provided with a positioning block that mates with the positioning groove.

[0016] Furthermore, the crossbeam is provided with vertical guide holes, and the guide post is installed on the crossbeam through the guide holes.

[0017] Furthermore, the guide post is provided with a radial through groove, and the lifting elastic device includes a lifting spring disposed in the through groove. The lower end of the lifting spring is provided with a support pad, and both ends of the support pad extend out of the through groove and cooperate with the crossbeam for blocking.

[0018] Furthermore, the guide hole is a square hole, and the guide post is a corresponding square post.

[0019] Furthermore, the upper end of the inner side of the claw is provided with a stop for engaging with the upper end of a common anchor bolt, and the lower end of the outer side of the claw is provided with a limiting groove for engaging with the top surface of the upper anchor plate. The distance between the limiting groove and the stop is the standard height of the common anchor bolt protruding from the upper anchor plate.

[0020] Furthermore, one side of the baffle is provided with a limiting slope for positioning the upper end of the ordinary anchor bolt when it is inserted at an angle.

[0021] Furthermore, the lower outer side of the anchor bolt positioning block is provided with a guide slope to guide the anchor bolt positioning block into the anchor bolt hole of the upper anchor plate.

[0022] Furthermore, two sets of anchor bolt straightening components are installed on the crossbeam. When the positioning bracket is installed on the upper anchor plate, the two sets of anchor bolt straightening components correspond to two rows of anchor bolt holes in the radial direction of the upper anchor plate.

[0023] Furthermore, the outer surface of the limiting slider is provided with a handle for personnel to operate.

[0024] Furthermore, the anchor bolt positioning block and the corresponding claw are engaged by a sliding groove and a slider respectively provided on both, and the sliding groove is a dovetail groove.

[0025] Beneficial Effects: This utility model of an auxiliary device for installing anchor bolts on wind turbine foundations is a pioneering invention. When installing ordinary anchor bolts, the ordinary anchor bolt, inserted from bottom to top into the anchor bolt hole of the upper anchor plate, will be inserted between the clamping claws. Under the action of the clamping elastic device, the upper threaded section of the ordinary anchor bolt will be clamped by the upper jaw on the telescopic block and simultaneously by the lower jaw on the anchor bolt positioning block. At this point, pulling down the ordinary anchor bolt will cause the guide column to descend under the pulling force, overcoming the elastic force of the lifting elastic device. The clamping claws and the anchor bolt positioning block will also descend synchronously until the anchor bolt positioning block is inserted downwards into the corresponding anchor bolt hole. The anchor bolt positioning block inserted into the anchor bolt hole will ensure its centered position within the anchor bolt hole through the engagement of its outer circumference with the anchor bolt hole. The inner surface mates with the upper threaded section of the ordinary anchor bolt to determine the position of the upper end of the ordinary anchor bolt. This ensures the position of the upper end when fixing the lower end of the ordinary anchor bolt, preventing it from tilting. After the lower end of the ordinary anchor bolt is fixed, the limiting slider can be moved from the initial locked position to the unlocked position. At this time, the constraint on the outer side of the telescopic block disappears. Under the action of the lifting elastic device, it will retract due to the force between the upper jaw and the upper threaded section of the ordinary anchor bolt, losing its connection to the ordinary anchor bolt. The gripper and guide post rise under the action of the lifting elastic device, and the anchor bolt positioning block will separate from the gripper, continuing to position the upper threaded section of the ordinary anchor bolt. As can be seen from the above description, the wind turbine foundation anchor bolt installation auxiliary device of this utility model solves the problem of ordinary anchor bolts tilting after installation on the lower anchor plate in anchor bolt foundations.

[0026] The anchor bolt assembly of this utility model adopts the following technical solution:

[0027] Anchor bolt assembly includes an upper anchor plate, a lower anchor plate, a positioning anchor bolt and a regular anchor bolt connected between the upper and lower anchor plates. The upper anchor plate is equipped with a wind turbine foundation anchor bolt installation auxiliary device. This device includes a positioning bracket and an anchor bolt straightening assembly. The positioning bracket includes columns 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 includes a guide post that guides the crossbeam vertically, a gripper installed at the lower end of the guide post, and a lifting elastic device that drives the guide post upwards. The gripper has windows that communicate internally and externally, and within these windows are... The telescopic block has an upper locking tooth on its inner side for engaging with the upper threaded section of a common anchor bolt. A limit slider is provided on the outer side of the claw, with a locking position for limiting the outer end of the telescopic block and an unlocking position for offsetting the outer end of the telescopic block. The claw is equipped with a clamping elastic device to drive the claw to clamp together. An anchor bolt positioning block is inserted into the lower end of each claw. The anchor bolt positioning block has an outer peripheral surface for positioning and engaging with the anchor bolt hole of the upper anchor plate and an inner surface for positioning and engaging with the upper threaded section of a common anchor bolt. A lower locking tooth is provided on the inner surface of the anchor bolt positioning block for engaging with the upper threaded section of a common anchor bolt.

[0028] Furthermore, the clamping elastic device is a tension spring connected between the grippers or a torsion spring acting between the grippers and the guide post.

[0029] Furthermore, the lower ends of the two columns are respectively provided with slots for radially engaging with the corresponding edges of the upper anchor plate.

[0030] Furthermore, one of the two columns is integrally or fixedly connected to the crossbeam, while the other is detachably connected to the crossbeam via fasteners.

[0031] Furthermore, the fastener is a wing bolt.

[0032] Furthermore, one of the columns and beams that are detachably connected to the crossbeam is provided with a positioning groove, and the other is provided with a positioning block that mates with the positioning groove.

[0033] Furthermore, the crossbeam is provided with vertical guide holes, and the guide post is installed on the crossbeam through the guide holes.

[0034] Furthermore, the guide post is provided with a radial through groove, and the lifting elastic device includes a lifting spring disposed in the through groove. The lower end of the lifting spring is provided with a support pad, and both ends of the support pad extend out of the through groove and cooperate with the crossbeam for blocking.

[0035] Furthermore, the guide hole is a square hole, and the guide post is a corresponding square post.

[0036] Furthermore, the upper end of the inner side of the claw is provided with a stop for engaging with the upper end of a common anchor bolt, and the lower end of the outer side of the claw is provided with a limiting groove for engaging with the top surface of the upper anchor plate. The distance between the limiting groove and the stop is the standard height of the common anchor bolt protruding from the upper anchor plate.

[0037] Furthermore, one side of the baffle is provided with a limiting slope for positioning the upper end of the ordinary anchor bolt when it is inserted at an angle.

[0038] Furthermore, the lower outer side of the anchor bolt positioning block is provided with a guide slope to guide the anchor bolt positioning block into the anchor bolt hole of the upper anchor plate.

[0039] Furthermore, two sets of anchor bolt straightening components are installed on the crossbeam. When the positioning bracket is installed on the upper anchor plate, the two sets of anchor bolt straightening components correspond to two rows of anchor bolt holes in the radial direction of the upper anchor plate.

[0040] Furthermore, the outer surface of the limiting slider is provided with a handle for personnel to operate.

[0041] Furthermore, the anchor bolt positioning block and the corresponding claw are engaged by a sliding groove and a slider respectively provided on both, and the sliding groove is a dovetail groove.

[0042] Beneficial Effects: The anchor bolt assembly of this utility model is an improved invention. By setting an auxiliary device for anchor bolt installation, when installing ordinary anchor bolts, the ordinary anchor bolts, which are inserted into the anchor bolt holes of the upper anchor plate from bottom to top, will be inserted between the clamps. Under the action of the clamping elastic device, the upper threaded section of the ordinary anchor bolt will be clamped by the upper teeth on the telescopic block and simultaneously by the lower teeth on the anchor bolt positioning block. At this time, pulling down the ordinary anchor bolt will cause the guide post to descend under the action of tension, overcoming the elastic force of the lifting elastic device. The clamps 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 its outer peripheral surface, ensuring its centered position in the anchor bolt hole. The upper end of the ordinary anchor bolt is positioned by engaging with its inner surface and the upper threaded section. This ensures the upper end remains in the correct position when the lower end is fixed, preventing tilting. After the lower end is secured, the limiting slider is moved from the initial locked position to the unlocked position. At this point, the constraint on the outer side of the telescopic block disappears. Under the action of the lifting elastic device, the upper jaw retracts due to the force between the upper jaw and the upper threaded section of the ordinary anchor bolt, losing its connection to the bolt. The gripper and guide post rise under the action of the lifting elastic device, separating the anchor bolt positioning block from the gripper and continuing to position the upper threaded section of the ordinary anchor bolt. As explained above, this wind turbine foundation anchor bolt installation auxiliary device solves the problem of tilting of ordinary anchor bolts after installation on the lower anchor plate in anchor bolt foundations. Attached Figure Description

[0043] Figure 1 This is a usage diagram of one embodiment of the auxiliary device for installing anchor bolts on the foundation of the wind turbine generator set according to this utility model, and also a structural schematic diagram of one embodiment of the anchor bolt assembly according to this utility model.

[0044] Figure 2 yes Figure 1 A diagram showing the usage status of the auxiliary device for installing foundation anchors of wind turbine generators from another perspective;

[0045] Figure 3 yes Figure 2 A schematic diagram of the auxiliary device for installing anchor bolts on the foundation of a wind turbine generator set, with one of the grippers and anchor bolt positioning blocks removed.

[0046] Figure 4 yes Figure 3 A magnified view of a portion at point A;

[0047] Figure 5 yes Figure 4 A schematic diagram of the anchor bolt straightening assembly in the diagram;

[0048] Figure 6 yes Figure 5A schematic diagram of the anchor bolt straightening component without one gripper and anchor bolt positioning block;

[0049] Figure 7 yes Figure 4 A schematic diagram of the anchor bolt straightening component and its interaction with a regular anchor bolt;

[0050] Figure 8 This is a schematic diagram of the installation structure of the expansion joint;

[0051] Figure 9 yes Figure 8 A schematic diagram of the limiting slider in the middle;

[0052] Figure 10 yes Figure 9 A schematic diagram of the installation of the limit slider in the middle;

[0053] Figure 11 This is a structural schematic diagram of the anchor bolt positioning block;

[0054] Figure 12 This is a structural schematic diagram of the anchor bolt positioning block from another perspective;

[0055] Figure 13 This is a structural diagram of one of the columns and beams of the positioning bracket;

[0056] Figure 14 This is a structural diagram of a column;

[0057] Figure 15 yes Figure 14 A structural schematic diagram of the column from another perspective;

[0058] Figure 16 This is a structural schematic diagram of one embodiment of the anchor bolt assembly of this utility model.

[0059] In the diagram: 1. Upper anchor plate; 10. Anchor bolt hole; 2. Lower anchor plate; 3. Positioning anchor bolt; 4. Ordinary anchor bolt; 40. Upper threaded section; 41. Locking nut; 5. Auxiliary device for anchor bolt installation of wind turbine generator foundation; 50. Bracket; 501. First clamping frame; 5011. Inner support column; 5012. Crossbeam; 5013. Guide hole; 5014. Stop block; 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 chuck; 5114. Upper receiving cavity; 5115. Wedge block; 5116. Limiting inclined surface; 5117. Limiting groove; 5118. Telescopic block; 512. Lifting elastic device; 52. Anchor bolt positioning block; 520. Lower chuck; 521. Lower receiving cavity; 522. Wedge groove; 523. Conical guide surface; 53. Clamping elastic device; 54. Hinge shaft; 6. Baseline; 7. Threaded locking element; 8. Limiting slider; 80. Sliding part; 81. Locking part; 82. Limiting element; 83. Guide groove; 9. Slide groove. Detailed Implementation

[0060] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0061] like Figure 1-3 As shown, the anchor bolt assembly includes a positioning anchor bolt 3, a regular anchor bolt 4, an upper anchor plate 1, and a lower anchor plate 2. The two ends of the positioning anchor bolt 3 are connected to the upper anchor plate 1 and the lower anchor plate 2, respectively. The main function of the positioning anchor bolt 3 is to support the upper anchor plate 1 and ensure that the upper anchor plate 1 and the lower anchor plate 2 are coaxial. The connection methods between the two ends of the positioning anchor bolt 3 and the upper anchor plate 1 and lower anchor plate 2 are the conventional connection methods used in the installation of wind turbine foundation anchor bolt assemblies.

[0062] For example, refer to Figure 1 There are eight positioning anchors 3; two positioning anchors 3 form a group, and the eight positioning anchors 3 are divided into four groups. Each group of positioning anchors 3 has two positioning anchors 3. The two positioning anchors 3 in each group are spaced apart along the same radial direction along the upper anchor plate 1 or the lower anchor plate 2. Adjacent groups of positioning anchors 3 are spaced apart along the circumference of the upper anchor plate 1 or the lower anchor plate 2.

[0063] Reference Figures 1-4Both the upper anchor plate 1 and the lower anchor plate 2 have anchor bolt holes 10 with the same diameter. The anchor bolt holes 10 of the upper anchor plate 1 and the lower anchor plate 2 are coaxial. The diameter of the anchor bolt hole 10 is adapted to the lower threaded section of the ordinary anchor bolt 4. Based on this, in order to allow the upper end of the ordinary anchor bolt 4 to pass through the anchor bolt hole 10 of the upper anchor plate 1 at a certain angle, even if the steel nut at the lower end of the ordinary anchor bolt 4 is tightened, there is still an annular space between the upper end of the ordinary anchor bolt 4 and the hole wall of the corresponding anchor bolt hole on the upper anchor plate, which causes the ordinary anchor bolt 4 to be more or less deviated.

[0064] The installation method of ordinary anchor bolts dictates that the diameter of the upper threaded section must be smaller than the diameter of the anchor bolt hole 10 on the upper anchor plate 1. This is why, during the installation of ordinary anchor bolt 4, the upper end may become skewed after the lower end is fixed. Considering the cause of this problem, if the annular gap between the upper threaded section 40 and the anchor bolt hole 10 can be filled when fixing the lower end of the ordinary anchor bolt 4, the ordinary anchor bolt 4 can be positioned and constrained to a vertical posture.

[0065] Based on the above-mentioned inventive concept, this utility model proposes a technical solution for a wind turbine foundation anchor bolt installation auxiliary device 5. As a basic implementation method, the wind turbine foundation anchor bolt installation auxiliary device of this utility model includes a positioning bracket and an anchor bolt straightening component. The positioning bracket is connected to the upper anchor plate 1. Since the anchor bolt straightening component is installed on the positioning bracket, the positioning bracket also plays a role in positioning the anchor bolt straightening component. This positioning role means that when the positioning bracket is installed on the upper anchor plate 1, the anchor bolt straightening component will be aligned with the anchor bolt hole 10 of the upper anchor plate in the vertical direction, thereby playing a role in positioning the upper threaded section 40 of the ordinary anchor bolt 4.

[0066] The anchor bolt straightening assembly is used to first "capture" the upper threaded section 40 of the ordinary anchor bolt 4 during installation, and then move down synchronously with the upper threaded section of the ordinary anchor bolt 4. A positioning element is installed between the upper threaded section 40 and the anchor bolt hole of the upper anchor plate, thereby achieving the positioning of the upper end of the ordinary anchor bolt 4.

[0067] To achieve the above functions, Figure 1-12 This illustration shows a typical embodiment of the auxiliary device for installing anchor bolts on a wind turbine foundation according to the present invention. In this embodiment, the auxiliary device 5 for installing anchor bolts on a wind turbine foundation 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 during use, and can be removed from the upper anchor plate 1 after use.

[0068] like Figure 5-11As shown, the anchor bolt straightening assembly 51 includes a guide post 510, a clamping elastic device 53, and two clamping claws 511. The guide post 510 is vertically slidable on the positioning bracket 50. The upper ends of the two clamping claws 511 are respectively hinged to opposite sides of the guide post 510. The hinge between the clamping claws 511 and the guide post 510 can be achieved by a hinge, or by setting a hinge seat on one of the clamping claws and a hinge tongue on the other. The function of the clamping elastic device 53 is to provide driving force for the clamping of the two clamping claws. Specifically, it can be a tension spring or a torsion spring, etc. When a tension spring is used, the clamping elastic device 53 extends horizontally, with both ends fixed to the two clamping claws 511. The hinge axis 54 that hinges the clamping claws 511 to the guide post 510 is perpendicular to the extension direction of the clamping elastic device 53, and the two clamping claws 511 can be opened by a common anchor bolt 4. Specifically, the gripper 511 includes a connecting plate 5110 and a clamping block 5111. The gripper 511 is hinged to the guide post 510 via 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 have arc-shaped grooves 5112 on their facing sides, and the arc-shaped grooves 5112 on both blocks form an upper receiving cavity 5114, which can be used to accommodate the upper threaded section of a common anchor bolt. The surface of the clamping block 5111 facing away from the arc-shaped groove 5112 is flush with the surface of the connecting plate 5110 facing away from the clamping elastic device 53.

[0069] The function of the clamping claw 511 is to clamp the upper threaded section 40 of the ordinary anchor bolt 4 to position the upper end of the ordinary anchor bolt. Therefore, in order to meet this requirement, the number of clamping claws can be three or more, as long as they can form an upper receiving cavity for positioning the upper end of the ordinary anchor bolt when they are clamped; in addition to tension springs and torsion springs, the clamping elastic device can also be a spring ring sleeved on the outside of each clamping claw.

[0070] In addition, the arc-shaped groove 5112 on the clamping block 5111 can be a semi-cylindrical groove or a 1 / 3 cylindrical groove, as long as it can be radially positioned after clamping the ordinary anchor bolt; each arc-shaped groove 5112 penetrates the lower end face of each claw 511 vertically, and the two arc-shaped grooves 5112 are used to clamp the upper threaded section 40 of the ordinary anchor bolt 4. The gripper 511 has a groove that communicates with the arc-shaped groove 5112 along the extension direction of the clamping elastic device 53. A telescopic block 5118 is slidably arranged in the groove. The inner side of the telescopic block 5118 is provided with an upper locking tooth 5113. The telescopic block 5118 can extend and retract along the extension direction of the clamping elastic device 53. A locking mechanism 8 is slidably arranged on the gripper 511, located outside the upper receiving cavity 5114, for locking the telescopic block 5118 in the arc-shaped groove 5112. The telescopic block 5118 is mainly used to engage with the threaded groove of the upper threaded section 40 of the ordinary anchor bolt 4 through the upper locking tooth 5113 provided on it.

[0071] Reference Figures 5-10 The locking mechanism 8 includes a limiting slider 8, a limiting member 82, and a guide groove 83. The guide groove 83 is provided on both opposite sides of the gripper 511 along the horizontal direction perpendicular to the clamping elastic device 53. The guide groove 83 extends vertically, and a limiting member 82 is fixed at the bottom of each guide groove 83. The limiting member 82 can be a screw or other component, and mainly serves to limit the limiting slider 8. The limiting slider 8 includes a sliding part 80 and a locking part 81. The sliding part 80 is provided on both opposite sides of the locking part 81 along the horizontal direction perpendicular to the clamping elastic device 53. The sliding part 80 and the locking part 81 are integrated and slidably connected to the guide groove 83, so that the sliding part 80 can drive the locking part 81 to slide vertically. The position of the sliding part 80 when it is limited and supported by the limiting member 82 in the guide groove 83 is defined as the locked position. When the limiting slider 80 is in the locked position, the locking part 81 will prevent the telescopic block 5118 from moving outward, keeping the telescopic block 5118 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 cleat 5113 on the telescopic block 5118 will lock the upper threaded section. When the sliding part 80 is disengaged from the limiting member 82 in the guide groove 83, it will move to the unlocked position. When the limiting slider 80 is in the unlocked position, the locking part 81 is above the telescopic block 5118, releasing the blocking state of the telescopic block 5118. At this time, the telescopic block 5118 can retract into the sliding groove 9 along the axial direction of the clamping elastic device 53, thereby preventing the upper cleat 5113 of the telescopic block from getting stuck in the thread groove of the upper threaded section 40 of the ordinary anchor bolt 44.

[0072] Anchor bolt positioning blocks 52 are installed at the lower end of the gripper claws. The upper ends of the two anchor bolt positioning blocks 52 are detachably plugged into the lower ends of the two gripper claws 511. When no external force is applied, the anchor bolt positioning blocks 52 are held on the gripper claws through the plugging connection. When a vertical external force is applied, the anchor bolt positioning blocks 52 can detach from the gripper claws 511 under the action of the external force. (Refer to...) 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 receiving cavity 521 for accommodating the upper threaded section 40 of the ordinary anchor bolt 4. The inner cavity of the anchor bolt positioning block 52 is provided with a lower locking tooth 520, which is mainly used to engage with the threaded groove of the upper threaded section 40 of the ordinary anchor bolt 4. When the ordinary anchor bolt 4 is inserted into the lower receiving cavity 521 and the upper receiving cavity 5114 in sequence, the two clamping claws 511 are spread open. When the upper threaded section 40 of the ordinary anchor bolt 4 is aligned to a vertical position, the two clamping claws 511 are reset under the elastic force of the clamping elastic device 53. At this time, the upper receiving cavity 5114 and the lower receiving cavity 521 clamp the upper threaded section 40 of the ordinary anchor bolt 4, and the upper locking tooth 5113 on the inner side of the telescopic block 5118 and the lower locking tooth 520 on the inner side of the anchor bolt positioning block are engaged in 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 with the anchor bolt hole 10 of the upper anchor plate 1 for fixation.

[0073] In a typical embodiment, the positioning bracket 50 includes two support columns and a crossbeam 5012 connected to the upper end of the support columns. One of the two support columns is detachably connected to the inner edge of the upper anchor plate 1, serving as the inner support column 5011, and the other is detachably connected to the outer edge of the upper anchor plate 1, serving as the outer support column 502. The crossbeam 5012 is located at the upper end of the two support columns and provides an installation base for the anchor bolt straightening assembly. Figure 4 , Figures 13-15As shown, in a preferred embodiment, the inner support column 5011 and the crossbeam 5012 of the positioning bracket 50 are integrated to form a first clamping frame 501. The bottom of the inner support column 5011 has an inner clamping groove 5015, which is a slot that can be clamped onto the inner edge of the upper anchor plate 1 during use. The crossbeam 5012 is connected to the top of the inner support column 5011. During use, the crossbeam 5012 extends horizontally and is located above the upper anchor plate 1. A guide hole 5013 is provided on the crossbeam 5012, penetrating its opposite surface. The guide hole 5013 is a square hole, and the guide column 510 is a corresponding square column. The guide column 510 slides vertically through the guide hole 5013. A vertically extending through groove 5101 is provided on the column 510, passing through the opposite side of the guide column 510 along the axial direction of the crossbeam 5012. A lifting elastic device 512, which is a spring, is provided in the through groove 5101. The lifting elastic device 512 extends vertically and its upper end is fixed to the guide column 510. The other end of the lifting elastic device 512 is fixedly connected to a support pad 5102. A stop 5014 is provided in the guide hole 5013, located in the through groove 5101 and capable of pressing against the support pad 5102. Therefore, the guide column 510 can slide vertically on the crossbeam 5012 of the first clamping frame 501.

[0074] Reference Figure 4 In use, the outer support column 502 is clamped on the upper anchor plate 1 and is positioned 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 slot for clamping on the upper anchor plate 1 during use. The upper end of the outer support column 502 is detachably connected to the end of the crossbeam 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 crossbeam 5012 away from the inner support column 5011. The positioning groove 5016 extends along the axial direction of the crossbeam 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 facing away from the crossbeam 5012. The connecting structure is used to fix the upper end of the outer support column 502 in the positioning groove 5016.

[0075] In some embodiments, the connecting structure includes a threaded locking member 7 used as a fastener. One end of the threaded locking member 7 is threaded along the axial direction of the crossbeam 5012 and threaded through the outer support column 502. This end of the threaded locking member 7 is threadedly connected and locked with a threaded hole (not shown) in the positioning groove 5016. When it is necessary to remove the bracket 50 from the upper anchor plate 1, simply rotate the threaded locking member 7 manually to disengage it from the threaded hole in the positioning groove 5016. Then, pull the outer support column 502 outward along the axial direction of the crossbeam 5012 to disengage the outer support column 502 from the first clamping frame 501. This allows the first clamping frame 501 and the outer support column 502 to be removed from the upper anchor plate 1, facilitating the disassembly and assembly of the bracket 50. To facilitate operation of the threaded locking member, the threaded locking member 7 is a wing bolt, eliminating the need for tools such as wrenches during operation.

[0076] Normally, to avoid affecting the connection strength between the upper threaded section 40 of the ordinary anchor bolt 4 and the tower flange, the height at which the upper end of the ordinary anchor bolt 4 protrudes from the anchor bolt hole 10 of the upper anchor plate 1 has a certain standard. As a preferred embodiment, to reduce the installation requirements of the ordinary anchor bolt 4 and facilitate its installation, refer to... Figure 2 , Figures 4-12A stop is provided at the top of the arc-shaped groove 5112 for engaging with the upper end of the ordinary anchor bolt. A limiting inclined surface 5116 is provided on one side of the stop. The inclination direction of the limiting inclined surface 5116 is the same as the direction in which the upper threaded section 40 of the ordinary anchor bolt 4 passes through the anchor bolt hole 10 of the upper anchor plate 1 and is inserted into the lower receiving cavity 521 and the upper receiving cavity 5114 in sequence. The line connecting the center of the anchor bolt hole 10 of the upper anchor plate 1 and the center of the upper anchor plate 1 is set as the reference line 6. The hinge shaft 54 ​​of the claw 511 and the guide post 510 is parallel to the reference line 6. After the upper threaded section 40 of the ordinary anchor bolt 4 passes through the anchor bolt hole 10 of the upper anchor plate 1 and enters the lower receiving cavity 521 and the upper receiving cavity 5114 in sequence, the upper threaded section 40 of the ordinary anchor bolt 4 finally contacts the limiting inclined surface 5116. Because the lifting elastic device 512 on the guide post 510 is in abutting contact with the stop block 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, the upper threaded section 40 of the ordinary anchor bolt 4 will push the guide post 510 upward during the process of straightening to a vertical state, so that the top surface of the ordinary anchor bolt 4 straightened to a vertical state contacts the top surface in the arc groove 5112. Based on this, a limiting groove 5117 penetrating the lower end surface of the gripper 511 is provided on the lower outer wall of the gripper 511. The vertical distance between the top surface of the limiting groove 5117 and the top surface in the arc groove 5112 is set to the standard height at which the upper threaded section 40 of the ordinary anchor bolt 4 protrudes to the anchor bolt hole 10 of the upper anchor plate 1. During the process of the ordinary anchor bolt 4 moving downwards and causing the anchor bolt positioning block 52 to enter the anchor bolt hole 10 of the upper anchor plate 1, once the top surface of the limiting groove 5117 comes into contact with the upper surface of the upper anchor plate 1, the downward movement of the ordinary anchor bolt 4 is limited. At this time, the height at which the upper threaded section 40 of the ordinary anchor bolt 4 protrudes outside the anchor bolt hole 10 of the upper anchor plate 1 is the vertical distance between the top surface of the limiting groove 5117 and the top surface of the arc groove 5112. The vertical distance between the top surface of the limiting groove 5117 and the top surface of the arc groove 5112 is the preset standard height at which the upper threaded section 40 of the ordinary anchor bolt 4 protrudes outside the anchor bolt hole 10 of the upper anchor plate 1. Therefore, after the ordinary anchor bolt 4 is installed, it will not affect the standard height at which the upper threaded section 40 of the ordinary anchor bolt 4 protrudes outside the anchor bolt hole 10 of the upper anchor plate 1, thus achieving the technical effect of reducing the difficulty of installing the ordinary anchor bolt 4.

[0077] As a preferred implementation method, such as Figure 8 , Figure 10 , Figure 11 , Figure 12As shown, the detachable plug-in connection structure between the anchor bolt positioning block 52 and the gripper 511 adopts the following structure: a wedge-shaped groove 522 is formed on the upper outer wall of the anchor bolt positioning block 52, specifically a dovetail groove. A wedge-shaped block 5115, which matches the wedge-shaped groove 522, is provided at the lower end of the gripper 511. The connection between the anchor bolt positioning block 52 and the gripper 511 is achieved through the plug-in engagement of the wedge-shaped block 5115 and the wedge-shaped groove 522. When it is necessary to detach the anchor bolt positioning block 52 from the gripper 511, the limiting slider 8 can be detached by sliding it upwards. Furthermore, multiple wedge grooves 522 are provided, and the multiple wedge grooves 522 are spaced apart along the circumference of the anchor bolt positioning block 52. Multiple wedge blocks 5115 are provided, and the multiple wedge blocks 5115 correspond one-to-one with the multiple wedge grooves 522. This can improve the connection performance between the anchor bolt positioning block 52 and the gripper 511 and prevent the anchor bolt positioning block 52 from detaching from the gripper 511 under its own weight.

[0078] In addition, as a preferred embodiment, refer to Figure 12 The lower outer wall of the anchor bolt positioning block 52 is provided with a tapered guide surface 523, i.e., a guide slope. The tapered guide surface 523 is used to guide the anchor bolt positioning block 52 into the anchor bolt hole 10 of the upper anchor plate 1. That is to say, when the anchor bolt positioning block 52 is pulled into the anchor bolt hole 10 of the upper anchor plate 1 by the ordinary anchor bolt 4, the tapered guide surface 523 facilitates the anchor bolt positioning block 52 into 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.

[0079] When using the auxiliary device of this utility model to install the anchor bolt assembly, 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, and connect and fix the upper anchor plate 1 and the lower anchor plate 2 through the positioning anchor bolt 3, ensuring that the upper anchor plate 1 and the lower anchor plate 2 are coaxial; third, install the ordinary anchor bolt 4, detachably connect the positioning bracket 50 to the upper anchor plate 1, and make the upper receiving cavity 5114 formed by the two arc-shaped grooves 5112 and the lower receiving 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 ordinary anchor bolt 4 to pass through. At this time, insert the upper end of the ordinary anchor bolt 4 into the anchor bolt hole 10 of the upper anchor plate 1 at an angle, so that the ordinary anchor bolt 4 is inserted into the anchor bolt hole 10 of the upper anchor plate 1 at an angle. The upper end of bolt 4 is inserted sequentially into the lower receiving cavity 521 and the upper receiving cavity 5114, and the two gripping claws 511 are spread apart. Then, the ordinary anchor bolt 4 is lifted and aligned, 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 gripping claws 511 are reset under the elastic force of the clamping elastic device 53, so that the two anchor bolt positioning blocks 52 also return to their initial state along with the gripping claws 511. The upper threaded section 40 of the ordinary anchor bolt 4 is located in the upper receiving cavity 5114 and the lower receiving cavity 521. The upper threaded section 40 of the ordinary anchor bolt 4 is coaxial with the upper receiving cavity 5114 and the lower receiving cavity 521, and the upper locking tooth 5113 and the lower locking tooth 520 on the telescopic block 5118 are respectively engaged in the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4. Due to the gripping claws 511 It can slide vertically along the guide post. Therefore, 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, causing 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 for fixation. At this time, the upper threaded section 40 of the ordinary anchor bolt 4 is engaged with the lower locking 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 passes through the lower receiving cavity 521 formed by the inner cavity of the two anchor bolt positioning blocks 52, and the lower locking teeth 520 of the inner cavity of the anchor bolt positioning block 52 are engaged in the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4. Also, because the ordinary anchor bolt 4 The upper threaded section 40 of the ordinary anchor bolt 4 is adapted to the lower receiving cavity 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, after 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 exert a force on the anchor bolt positioning block 52. This force makes the outer wall surface of the anchor bolt positioning block 52 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 and the anchor bolt hole 10 of the upper anchor plate 1 are coaxial, effectively preventing the ordinary anchor bolt 4 from being misaligned 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 close to the upper surface of the lower anchor plate 2, the shim is added below 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 used to lock the telescopic block 5118. Since the anchor bolt positioning block 52 and the gripper 511 of the anchor bolt straightening assembly 51 are detachably plugged in, 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 groove 5016 along the axial direction of the clamping elastic device 53, so that the upper locking tooth 5113 on the telescopic block 5118 disengages from the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4. In this way, the anchor bolt positioning block 52 fixed in the anchor bolt hole 10 of the upper anchor plate 1 can be disengaged from the gripper 511. At this time, the positioning bracket 50 can be removed from the upper anchor plate 1, and the auxiliary device can be removed from the upper anchor plate 1 to facilitate the subsequent connection between the upper anchor plate 1 and the tower flange.

[0080] In summary, by adopting the auxiliary device of this utility model, the ordinary anchor bolt 4 of the wind turbine generator foundation anchor bolt can be effectively prevented from deflecting after being installed on the upper and lower anchor plates 2. Thus, when the grouting layer is poured below the bottom of the upper anchor plate 1, leaving only the upper anchor plate 1 as the base surface for connection with the tower flange, the ordinary anchor bolt 4 is coaxial with the anchor bolt hole 10 of the upper and lower anchor plates 2. This ensures that the ordinary anchor bolt 4 is coaxial with the anchor bolt hole 10 on the upper anchor plate 1 through which the upper end of the ordinary anchor bolt 4 passes, thereby preventing the threaded section of the ordinary anchor bolt 4 passing through the anchor bolt hole 10 of the upper anchor plate 1 from being unable to align with the flange hole of the tower flange, thus avoiding affecting the connection between the wind turbine generator foundation anchor bolt assembly and the tower, and reducing the difficulty of hoisting the wind turbine generator tower. In addition, after the ordinary anchor bolt 4 is installed, the two anchor bolt positioning blocks 52 restrict the ordinary anchor bolt 4 from deflection, thereby greatly improving the final vertical accuracy of the ordinary anchor bolt 4 and ensuring that the ordinary anchor bolt 4 is in a good stress state, thus effectively improving the quality of the wind turbine generator foundation.

[0081] It should be noted that the ordinary 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-shaped groove 5112 on the claw 511 is engaged in the thread groove of the upper threaded section 40 of the ordinary anchor bolt 4. Therefore, during the process of pulling the anchor bolt positioning block 52 into the anchor bolt hole 10 of the upper anchor plate 1, the ordinary anchor bolt 4 will not cause the anchor bolt positioning block 52 to disengage from the claw 511. Of course, the structure of the telescopic block 5118 and the lower locking tooth 520 is not limited to the attached... Figure 8 and attached Figure 11 The structure shown can also be a protrusion of other structures, which is not limited here.

[0082] Embodiments of the anchor bolt assembly of this utility model:

[0083] like Figure 1 , 2As shown in Figures 3, 4, and 16, the anchor bolt assembly of this utility model includes an upper anchor plate, a lower anchor plate, a positioning bolt, a common bolt, and an auxiliary device for installing anchor bolts on the foundation of a wind turbine generator set. The auxiliary device for installing anchor bolts on the foundation of a wind turbine generator set is the auxiliary device for installing anchor bolts on the foundation of a wind turbine generator set of this utility model, and will not be described in detail here.

[0084] exist Figure 16 In the illustrated embodiment, there are multiple sets of ordinary anchor bolts 4. Each set of ordinary anchor bolts 4 consists of two bolts. The two ordinary anchor bolts 4 in each set are spaced apart along the same radial direction of the upper anchor plate 1 or the lower anchor plate 2. Adjacent sets of ordinary anchor bolts 4 are spaced apart along the circumferential direction of the upper anchor plate 1 or the lower anchor plate 2. Furthermore, it should be noted that one anchor bolt hole 10 on the upper anchor plate 1 corresponds to one ordinary anchor bolt 4, and one anchor bolt hole 10 on the lower anchor plate 2 also corresponds to one ordinary anchor bolt 4. One anchor bolt straightening component 5 corresponds to one set of ordinary anchor bolts 4, one anchor bolt straightening component 51 corresponds to one anchor bolt hole 10 on the upper anchor plate 1 through which an ordinary anchor bolt 4 passes, and two anchor bolt positioning blocks 52 correspond to one anchor bolt hole 10 on the upper anchor plate 1 through which an ordinary anchor bolt 4 passes. Therefore, in a set of ordinary 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. Each anchor bolt straightening component 51 corresponds to one of the two anchor bolt positioning blocks 52, and each of the two anchor bolt positioning blocks 52 corresponds to an anchor bolt hole 10 on the upper anchor plate 1 through which the ordinary anchor bolt 4 passes. In other embodiments, the number of positioning anchor bolts and ordinary anchor bolts can be arbitrarily arranged as needed.

[0085] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for installing anchor bolts on wind turbine generator foundations, characterized in that, The system includes a positioning bracket and an anchor bolt straightening assembly. The positioning bracket includes columns 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 includes a guide post that guides the crossbeam vertically, a claw mounted on the lower end of the guide post, and a lifting elastic device for driving the guide post upward. Each claw has an internally and externally communicating window, and a telescopic block is installed in the window. The inner side of the telescopic block is provided with an upper locking tooth for engaging with the upper threaded section of a common anchor bolt. A limit slider is provided on the outer side of the window. The limit slider has a locking position that limits the outer end of the telescopic block and an unlocking position that offsets the outer end of the telescopic block. The gripper is equipped with a clamping elastic device that drives the gripper to clamp. An anchor bolt positioning block is inserted into the lower end of each gripper. The anchor bolt positioning block has an outer peripheral surface for positioning and engaging with the anchor bolt hole of the upper anchor plate and an inner surface for positioning and engaging with the upper threaded section of a common anchor bolt. The inner surface of the anchor bolt positioning block is provided with a lower locking tooth for engaging with the upper threaded section of a common anchor bolt.

2. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1, characterized in that, The clamping elastic device is a tension spring connected between the grippers or a torsion spring acting between the grippers and the guide post.

3. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1 or 2, characterized in that, The lower ends of the two columns are respectively provided with slots for radially engaging with the corresponding edges of the upper anchor plate.

4. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 3, characterized in that, One of the two columns is integrally or fixedly connected to the crossbeam, while the other is detachably connected to the crossbeam via fasteners.

5. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 4, characterized in that, The fastener is a wing bolt.

6. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 4, characterized in that, One of the columns and beams that are detachably connected to the crossbeam is provided with a positioning groove, and the other is provided with a positioning block that mates with the positioning groove.

7. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1 or 2, characterized in that, The crossbeam is provided with vertical guide holes, and the guide column is installed on the crossbeam through the guide holes.

8. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 7, characterized in that, The guide post is provided with a radial through groove, and the lifting elastic device includes a lifting spring provided in the through groove. The lower end of the lifting spring is provided with a support pad, and the two ends of the support pad extend out of the through groove and cooperate with the crossbeam for blocking.

9. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 7, characterized in that, The guide hole is a square hole, and the guide post is a corresponding square post.

10. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1 or 2, characterized in that, The upper inner side of the claw is provided with a stop for engaging with the upper end of a common anchor bolt. The lower outer side of the claw is provided with a limiting groove for engaging with the top surface of the upper anchor plate. The distance between the limiting groove and the stop is the standard height of the common anchor bolt protruding from the upper anchor plate.

11. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 10, characterized in that, One side of the baffle is provided with a limiting slope for positioning the upper end of the ordinary anchor bolt when it is inserted at an angle.

12. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1 or 2, characterized in that, The lower outer side of the anchor bolt positioning block is provided with a guide slope to guide the anchor bolt positioning block into the anchor bolt hole of the upper anchor plate.

13. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1 or 2, characterized in that, Two sets of anchor bolt straightening components are installed on the crossbeam. When the positioning bracket is installed on the upper anchor plate, the two sets of anchor bolt straightening components correspond to two rows of anchor bolt holes in the radial direction of the upper anchor plate.

14. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1 or 2, characterized in that, The outer surface of the limiting slider is provided with a handle for personnel to operate.

15. The auxiliary device for installing wind turbine foundation anchor bolts according to claim 1 or 2, characterized in that, The anchor bolt positioning block and the corresponding claw are engaged by a sliding groove and a slider respectively provided on the two, and the sliding groove is a dovetail groove.

16. An anchor bolt assembly, comprising an upper anchor plate, a lower anchor plate, a positioning anchor bolt and a regular anchor bolt connected between the upper and lower anchor plates, characterized in that, The upper anchor plate is provided with an auxiliary device for installing wind turbine generator foundation anchor bolts as described in any one of claims 1-15.

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