CN114855862A - Installation method of auxiliary positioning dragon frame and prestressed anchor bolt assembly - Google Patents

Abstract

The invention discloses an auxiliary positioning dragon frame in the technical field of wind power generation, comprising a left support frame, a right support frame, an upper connecting plate, a lower connecting plate and a support rod. Support brackets, each left support bracket is provided with a left support groove, the inner cavity wall of the right support frame is provided with a number of right support brackets, and each right support bracket is provided with a right support groove The circle formed by the center of the left support groove and the right support groove matches the circle where the outer anchor bolt axis of the anchor bolt cage is located. The invention also discloses an installation method using the auxiliary positioning dragon frame. By using the auxiliary positioning dragon frame, the horizontal installation of the anchor bolt cage can be realized without the aid of a crane. The beneficial effects of the invention are as follows: the use of cranes is reduced, the original vertical installation is changed to the horizontal installation, the installation efficiency is improved, the safety performance is improved, the cost is saved and the installation risk is reduced.

Description

Installation method of auxiliary positioning dragon frame and prestressed anchor bolt assembly

technical field

The invention belongs to the technical field of wind power generation, and in particular relates to an installation method of an auxiliary positioning dragon frame and a prestressed anchor bolt assembly.

Background technique

The installation method of the anchor bolt cage in the prior art is to insert the anchor bolt into the anti-adhesion sleeve and then penetrate the upper anchor plate, and then lift it vertically with a crane to make the anchor bolt vertical, put the lower anchor plate horizontally, and the crane is slow. When descending, the anchor bolts are all aligned with the lower anchor plate holes. After all penetrations, tighten the nuts and then lay down the anchor bolt cage to adjust the size.

The patent number is CN201510515415.7 and an existing patent with the patent name of a replaceable prestressed anchor bolt device discloses a construction and installation method of a prestressed anchor bolt assembly, which includes the following steps: 1) first lower the anchor bolt The plate is fixed on the foundation cushion and leveled; 2) Lift the upper anchor plate, insert the anchor bolt into the plastic sleeve, cover the plastic sleeve with a non-metallic leveling nut, and then pass the anchor bolt through the upper anchor plate. bolt holes, and then screw nuts on the top of the anchor bolts; 3) Use a crane to move the upper anchor plate to the top of the lower anchor plate, and slowly lift the upper anchor plate, so that the anchor bolts are inserted into the bolt holes of the lower anchor plate accordingly; 4) Rotate each anchor bolt at the top, screw the bottom end of the anchor bolt into the lower nut welded under the lower anchor plate; 5) Level the upper anchor plate through the non-metal leveling nut; 6) Bind the foundation steel bars and pour concrete, and The upper anchor plate, the lower anchor plate and the anchor bolts are poured into the concrete foundation. After the concrete reaches the specified strength, the bottom tower is lifted, and the anchor bolts are tensioned on the upper anchor plate.

The prior art requires a crane, which results in high-altitude operations and scaffolding assistance, which results in potential safety hazards and low installation efficiency.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention decides to develop an installation method for the auxiliary positioning dragon frame and the prestressed anchor bolt assembly.

An auxiliary positioning dragon frame, comprising a left support frame, a right support frame, an upper connecting plate, a lower connecting plate and a support rod, the inner cavity wall of the left support frame is provided with a plurality of left support brackets, and each left support A left support groove is provided on the support, the inner cavity wall of the right support frame is provided with a plurality of right support supports, each right support support is provided with a right support groove, and the left support groove and The circle formed by the center of the right support groove matches the circle where the outer anchor bolt axis of the anchor cage is located; several support rods are installed in the inner cavities of the left support frame and the right support frame, and the support rods A support rod groove is provided on the support rod, and the setting of the support rod groove is matched with the central anchor bolt inside the anchor bolt cage; the left support frame is provided with a left upper connecting hole and a left lower connecting hole, and the right support frame is provided with The upper right connecting hole and the lower right connecting hole are arranged on the upper part, the upper left connecting hole and the upper right connecting hole are fixedly connected through the upper connecting plate, and the lower left connecting hole and the lower right connecting hole are fixedly connected through the lower connecting plate.

Further, the support rod includes an upper support rod, a middle support rod, and a lower support rod, the upper support rod is provided with an upper support groove, and the middle support rod is provided with two middle support grooves, so The lower support rod is provided with a lower support groove, and both ends of the upper support rod, the middle support rod and the lower support rod are respectively mounted on the left support bracket and the right support bracket.

Further, the left support bracket is provided with a left installation hole, the right support bracket is provided with a right installation hole, and one end of the upper support rod, the middle support rod, and the lower support rod are installed on the left support through the left installation hole. The other ends of the upper support rod, the middle support rod and the lower support rod are installed on the right support bracket through the right mounting hole.

An installation method of a prestressed anchor bolt assembly using the auxiliary positioning dragon frame, comprising the following steps:

(1) Fix the left support frame and the upper end of the right support frame of the auxiliary positioning dragon frame through the upper connecting plate, the upper left connecting hole and the upper right connecting hole, and the auxiliary positioning dragon frame through the lower connecting plate, the lower left connecting hole and the lower right connecting hole. The lower ends of the left support frame and the right support frame are fixed, and the upper support rod, the middle support rod and the lower support rod are respectively installed in the left installation hole of the left support frame and the right installation hole of the right support frame. The auxiliary positioning dragon frame is installed. ;

(2) Lay a steel plate on the site, fix the upper anchor plate and the auxiliary positioning dragon skeleton to the steel plate vertically, and install the auxiliary positioning dragon skeleton 10-30cm inside the position of the lower anchor plate;

(3) Screw all the nylon nuts at the upper end of the anchor bolt to the position of the anchor bolt in the drawing, insert the anti-adhesion sleeve from the lower end of the anchor bolt, and then screw the half nut at the lower end of the anchor bolt to the drawing size, and insert the heat shrinkable tube into it. ;

(4) Workers hold the anchor bolts first through the fixing ring and the upper anchor plate, and then put each anchor bolt into the left support groove, right support groove, upper support groove, and middle support groove corresponding to the auxiliary positioning dragon skeleton. groove and lower support groove, install all the anchor bolts in place in sequence, and after all the anchor bolts are fixed in place, adjust the position of the fixing ring and fix it with U-shaped bolts;

(5) Tighten the upper nut on the upper side of the upper anchor plate;

(6) Pass the lower anchor plate horizontally through the anchor bolt, tighten all the lower nuts on the lower side of the lower anchor plate, and apply the torque required by the drawing;

(7) After checking the relevant dimensions, remove the auxiliary positioning dragon skeleton, and complete the installation of the anchor cage.

The beneficial effects obtained by the invention are as follows: when the anchor cage is installed horizontally, it is first supported and shaped by the auxiliary positioning dragon frame, and after the installation is completed, the auxiliary positioning dragon frame is removed without affecting the structure of the anchor bolt cage, and the installation method reduces the use of cranes , the original vertical installation is changed to the horizontal installation, which improves the installation efficiency, improves the safety performance, saves the cost and reduces the installation risk.

Description of drawings

Figure 1 is an exploded view of the structure of the auxiliary positioning dragon skeleton;

Figure 2 is a schematic diagram of the installation structure of the auxiliary positioning dragon skeleton;

Figure 3 is a schematic structural diagram of an anchor cage;

Fig. 4 is the structural representation of part A of the anchor cage;

Figure 5 is a schematic structural diagram of part B of the anchor cage;

The reference numbers in the figure are:

1 left support frame, 2 right support frame, 3 lower left connecting hole, 4 lower right connecting hole, 5 upper left connecting hole, 6 upper right connecting hole, 7 upper support rod, 8 upper support groove, 9 middle support rod, 10 middle support Groove, 11 lower support rod, 12 lower support groove, 13 left support groove, 14 right support groove, 15 left support bracket, 16 right support bracket, 17 upper connecting plate, 18 lower connecting plate, 19 peripheral anchor bolt , 20 center anchor bolt, 21 upper anchor plate, 22 lower anchor plate, 23 fixing ring, 24 left mounting hole, 25 right mounting hole, 26 U-bolt, 27 anti-adhesion sleeve, 28 nylon nut, 29 upper nut, 30 Column foot flange plate, 31 heat shrinkable tube, 32 lower nut, 33 half nut.

Detailed ways

Example 1

As shown in Figures 1-5, an auxiliary positioning dragon frame includes a left support frame 1, a right support frame 2, an upper connecting plate 17, a lower connecting plate 18, an upper support rod 7, a middle support rod 9, and a lower support rod 11. The inner cavity wall of the left support frame 1 is provided with a number of left support brackets 15, each of the left support brackets 15 is provided with a left support groove 13, and the inner cavity wall of the right support bracket 2 is provided with a number of left support brackets 15. The right support bracket 16, each right support bracket 16 is provided with a right support groove 14, the center of the circle where the left support groove 13 and the right support groove 14 are located and the outer anchor bolt of the anchor bolt cage The circle where the axis is located is matched; the inner cavity of the left support frame 1 and the right support frame 2 are installed with an upper support rod 7, a middle support rod 9, and a lower support rod 11, and the upper support rod 7 is provided with a The upper support groove 8, the middle support rod 9 is provided with two middle support grooves 10, the lower support rod 11 is provided with a lower support groove 12, the upper support rod 7, the middle support rod 9 , The two ends of the lower support rod 11 are respectively installed on the left support bracket 15 and the right support bracket 16. The settings of the upper support groove 8, the middle support groove 10, and the lower support groove 12 are the same as those of the interior of the anchor bolt cage. The central anchor bolt 20 is matched and arranged; the left support bracket 13 is provided with a left installation hole 24, the right support bracket 16 is provided with a right installation hole 25, the upper support rod 7, the middle support rod 9, the lower support rod Both ends of 11 are respectively mounted on the left support bracket 13 through the left mounting hole 24 , and are mounted on the right support bracket 16 through the right mounting hole 14 .

The left support frame 1 is provided with an upper left connection hole 5 and a lower left connection hole 3, the right support frame 2 is provided with an upper right connection hole 6 and a lower right connection hole 4, and the upper left connection hole 5 and the upper right connection hole 6 are provided. The upper connecting plate 17 is fixedly connected, and the lower left connecting hole 3 and the lower right connecting hole 4 are fixedly connected through the lower connecting plate 18 .

An installation method of a prestressed anchor bolt assembly using an auxiliary positioning dragon frame, comprising the following steps:

(1) The upper ends of the left support frame 1 and the right support frame 2 of the auxiliary positioning dragon frame are fixed through the upper connecting plate 17 , the upper left connecting hole 5 and the upper right connecting hole 6 . The connecting hole 4 fixes the lower ends of the left support frame 1 and the right support frame 2 of the auxiliary positioning dragon frame, and installs the upper support rod 7 , the middle support rod 9 and the lower support rod 11 on the left mounting hole 24 of the left support frame 1 respectively. , the right installation hole 25 of the right support frame 2, the auxiliary positioning dragon frame is installed;

(2) Lay a steel plate on the site, vertically fix the upper anchor plate 21 and the auxiliary positioning dragon frame to the steel plate, and install the auxiliary positioning dragon frame 10-30cm inside the position of the lower anchor plate 22;

(3) Screw all the nylon nuts 28 at the upper end of the anchor bolt into the drawing position of the anchor bolt, insert the anti-adhesion sleeve 27 from the lower end of the anchor bolt, and then screw the half nut 33 at the lower end of the anchor bolt to the drawing size and insert heat shrinkable tube 31;

(4) Workers hold the anchor bolts first through the fixing ring 23 and the upper anchor plate 21, and then put the anchor bolts into the left support groove 13, right support groove 14 and upper support groove corresponding to the auxiliary positioning dragon frame respectively. 8. In the middle support groove 10 and the lower support groove 12, install all the anchor bolts in place in sequence. After all the anchor bolts are fixed in place, adjust the position of the fixing ring 23 and fix it with U-shaped bolts 26;

(5) Tighten the upper nut 29 on the upper side of the upper anchor plate 21;

(6) Pass the lower anchor plate 22 through the anchor bolt horizontally, tighten all the lower nuts 32 on the lower side of the lower anchor plate 22, and apply the torque required by the drawing;

(7) After checking the relevant dimensions, remove the auxiliary positioning dragon skeleton, and complete the installation of the anchor cage.

Claims (4)

1. An auxiliary positioning dragon skeleton is characterized in that: comprising a left support frame, a right support frame, an upper connecting plate, a lower connecting plate and a support rod, and the inner cavity wall of the left support frame is provided with several left support brackets, Each left support bracket is provided with a left support groove, the inner cavity wall of the right support frame is provided with a number of right support brackets, and each right support bracket is provided with a right support groove, so The circle formed by the center of the left support groove and the right support groove is matched with the circle where the outer anchor bolt axis of the anchor bolt cage is located; a number of supports are installed in the inner cavity of the left support frame and the right support frame The support rod is provided with a support rod groove, and the setting of the support rod groove is matched with the central anchor bolt inside the anchor bolt cage; the left support frame is provided with an upper left connecting hole and a lower left connecting hole , the right support frame is provided with an upper right connecting hole and a lower right connecting hole, the upper left connecting hole and the upper right connecting hole are fixedly connected through the upper connecting plate, and the lower left connecting hole and the lower right connecting hole are fixedly connected through the lower connecting plate. . 2 . The auxiliary positioning dragon frame according to claim 1 , wherein the support rod comprises an upper support rod, a middle support rod and a lower support rod, and an upper support groove is provided on the upper support rod. 3 . , the middle support rod is provided with two middle support grooves, the lower support rod is provided with a lower support groove, and the two ends of the upper support rod, the middle support rod and the lower support rod are respectively installed on the left on the support bracket and the right support bracket. 3. An auxiliary positioning dragon frame according to claim 2, characterized in that: the left support bracket is provided with a left installation hole, the right support bracket is provided with a right installation hole, the upper support rod, One ends of the middle support rod and the lower support rod are installed on the left support bracket through the left installation hole, and the other ends of the upper support rod, the middle support rod and the lower support rod are installed on the right support bracket through the right installation hole. 4. A method for installing a prestressed anchor bolt assembly using the auxiliary positioning keel frame described in any one of claims 1-3, characterized in that it comprises the following steps: (1) Fix the left support frame and the upper end of the right support frame of the auxiliary positioning dragon frame through the upper connecting plate, the upper left connecting hole and the upper right connecting hole, and the auxiliary positioning dragon frame through the lower connecting plate, the lower left connecting hole and the lower right connecting hole. The lower ends of the left support frame and the right support frame are fixed, and the upper support rod, the middle support rod and the lower support rod are respectively installed in the left installation hole of the left support frame and the right installation hole of the right support frame. The auxiliary positioning dragon frame is installed. ; (2) Lay a steel plate on the site, fix the upper anchor plate and the auxiliary positioning dragon skeleton to the steel plate vertically, and install the auxiliary positioning dragon skeleton 10-30cm inside the position of the lower anchor plate; (3) Screw all the nylon nuts at the upper end of the anchor bolt to the position of the anchor bolt in the drawing, insert the anti-adhesion sleeve from the lower end of the anchor bolt, and then screw the half nut at the lower end of the anchor bolt to the drawing size, and insert the heat shrinkable tube into it. ; (4) Workers hold the anchor bolts first through the fixing ring and the upper anchor plate, and then put each anchor bolt into the left support groove, right support groove, upper support groove, and middle support groove corresponding to the auxiliary positioning dragon skeleton. groove and lower support groove, install all the anchor bolts in place in sequence, and after all the anchor bolts are fixed in place, adjust the position of the fixing ring and fix it with U-shaped bolts; (5) Tighten the upper nut on the upper side of the upper anchor plate; (6) Pass the lower anchor plate horizontally through the anchor bolt, tighten all the lower nuts on the lower side of the lower anchor plate, and apply the torque required by the drawing; (7) After checking the relevant dimensions, remove the auxiliary positioning dragon skeleton, and complete the installation of the anchor cage.

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