An anchor bolt packaging and pipe-passing device for a wind turbine foundation

Abstract

The invention discloses an anchor bolt packaging and pipe threading device for a wind turbine foundation. The anchor bolt is clamped between a first grooved roller and a second grooved roller, and then the PE pipe is placed concentrically with the anchor bolt. The motor is started, and the foot pedal is stepped on to drive the second grooved roller to move upward. The frictional force between the second grooved roller and the first grooved roller forms an upward and downward clamping force on the PE pipe. Driven by the second grooved roller, the PE pipe moves toward the side of the anchor bolt, enabling the anchor bolt to smoothly penetrate into the PE pipe, achieving the purpose of automatic pipe threading. It is efficient, convenient, time-saving and labor-saving, reduces the working intensity and difficulty, improves the working efficiency, and only needs to step on the foot pedal to perform pipe threading without frequently turning off the motor. The operation is simple and highly controllable, meeting the needs of batch production of anchor bolts.

Description

Technical Field

[0001] The invention relates to the field of anchor bolt packaging equipment, and in particular to an anchor bolt packaging pipe threading equipment for a wind turbine generator set foundation. Background Art

[0002] Wind power generation uses wind power to drive the wind turbine blades to rotate, and increases the speed of rotation through a speed increaser to drive the generator to generate electricity. Wind energy is a clean, pollution-free, renewable energy source with high economic and social benefits. In order to ensure the normal and safe operation of wind turbines and resist various possible extreme working conditions, the construction quality of the wind turbine foundation is crucial.

[0003] In recent years, in order to avoid stress concentration when connecting the foundation of wind turbines, anchor rod assemblies are usually used to connect the wind turbine foundation and the tower. This method can effectively avoid the excessive local compressive stress of concrete caused by the uncoordinated deformation between traditional foundation steel and concrete, which causes problems such as crushing and damage. The quality of the wind turbine foundation connected by anchor rod assemblies is closely related to the quality of the anchor rod assemblies. Once the quality of the anchor rod assemblies has problems, it will directly affect the quality and use of the entire wind power foundation, resulting in great losses.

[0004] The core component of the anchor assembly is the anchor bolt. Due to the complexity of the installation location and the diversity of climate, the anchor bolt packaging has strict anti-corrosion requirements. Traditional anchor bolt packaging is carried out in a purely manual manner, and the steps are as follows: first, apply anti-corrosion grease with a thickness of not less than 1mm on the outside of the anchor bolt, and wrap the anti-corrosion grease tape in layers on the non-threaded part of the anchor bolt coated with anti-corrosion grease. After wrapping, apply another layer of anti-corrosion grease on the surface of the anti-corrosion grease tape (the total thickness of the anti-corrosion grease on the outside of the anchor bolt and the anti-corrosion grease tape is required to be slightly larger than the gap between the PE pipe and the anchor bolt). Finally, put the PE pipe on the outside of the anchor bolt. After the pipe is put, the anti-corrosion grease and the anti-corrosion grease tape are compressed and fill the gap between the entire PE pipe and the anchor bolt. Because the anchor bolt is a large-size fastener, generally M39×L, M42×L, M48×L, length L=3000-6000mm, according to the M42×4500 anchor bolt, the weight of each piece is 42.07Kg, the pipe threading process is difficult and the workload is large, and the work efficiency is low. Therefore, in order to meet the needs of batch anchor production, it is necessary to design an anchor packaging and pipe-threading equipment for wind turbine foundations. Summary of the invention

[0005] The invention provides a device for packing and threading pipes of anchor bolts for wind turbine foundations, aiming to solve the problems of great difficulty and low working efficiency in existing threading pipe methods during anchor bolt packing.

[0006] The present invention relates to a pipe threading device for the packaging of anchor bolts used in the foundation of a wind turbine generator set, which includes a base. An electric motor and a column are provided on the base. At the top of the column, there is a support plate extending to one side in the radial direction of the electric motor. At one end of the support plate close to the electric motor, a roller fixing seat is provided along the direction in which the anchor bolt penetrates. A vertical chute is provided on the roller fixing seat. A first grooved roller is fixedly connected from top to bottom in the chute and a second grooved roller is slidably connected therein. The anchor bolt is clamped between the first grooved roller and the second grooved roller. A first pulley is connected to the output shaft of the electric motor. At one end of the second grooved roller on the same side as the first pulley, there is a second pulley. The first pulley and the second pulley are driven by a belt. On the top of the support plate above the column, brackets are symmetrically provided perpendicular to the direction in which the anchor bolt penetrates. At the center of the top of the bracket, there is a first groove. A PE pipe concentric with the anchor bolt is horizontally placed in the first groove. A rotating assembly is provided on the bracket outside the first groove. At both sides of the bottom of the end of the support plate away from the electric motor, springs are connected. The free ends of the springs are connected to one end of a first connecting rod. The other end of the first connecting rod is rotatably connected to one end of a second connecting rod. The other end of the second connecting rod is connected to the end of the second grooved roller. A fixed shaft is fixedly connected to one side of the middle of the column close to the electric motor. Both ends of the fixed shaft are supported by a second bearing. The outer ring of the second bearing is fixedly connected to the first connecting rod. At the bottom of the first connecting rod close to the column, one end is connected to one end of a third connecting rod. The other end of the third connecting rod is connected to a horizontal fourth connecting rod. A foot pedal is provided on the fourth connecting rod.

[0007] Preferably, there are three rotating assemblies, which are arranged in an inverted triangular shape outside the groove.

[0008] Preferably, the rotating assembly includes a rotating shaft passing through the bracket, and a plurality of first bearings are sleeved on the rotating shaft.

[0009] Preferably, the first groove is semicircular.

[0010] Preferably, a semicircular second groove is provided at the top end of the second connecting rod, and the end of the second grooved roller is clamped in the second groove.

[0011] Preferably, the first connecting rod and the second connecting rod are connected by a pin.

[0012] Preferably, the third connecting rod is bent.

[0013] Preferably, the column is cuboid-shaped, and stiffening plates are perpendicularly fixedly connected to the four corners at the bottom.

[0014] Preferably, through holes are provided at the four corners of the base.

[0015] Preferably, an anti-slip pad is provided on the foot pedal.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The anchor bolt packaging pipe threading device for the foundation of a wind turbine generator set provided by the present invention first places one end of the anchor bolt between the first grooved roller and the second grooved roller, then places the PE pipe in the first groove, steps on the foot pedal, and the second connecting rod moves upward to drive the second grooved roller to move upward in the chute. Through the friction between the first grooved roller and the second grooved roller, combined with the rotating assembly on the outer periphery of the first groove, the PE pipe is horizontally moved towards the anchor bolt direction, and then easily sleeved on the outer periphery of the anchor bolt, replacing the traditional manual pipe threading method, which is efficient, convenient, time-saving and labor-saving, reduces the work intensity and difficulty, improves the work efficiency, and meets the needs of batch production of anchor bolts.

[0018] 2. The anchor bolt packaging pipe threading device for the foundation of a wind turbine generator set provided by the present invention has a clever structural design and is simple to manufacture. After the base is fixed to the ground with anchor bolts, it has strong stability. The operator can perform pipe threading by simply stepping on the foot pedal without frequently turning off the motor. The operation is simple and highly controllable, and the anchor bolt packaging pipe threading work is completed intermittently and gradually. Brief Description of the Drawings

[0019] Figure 1 is the three-dimensional structure schematic diagram of the anchor bolt packaging pipe threading device for the foundation of a wind turbine generator set of the present invention;

[0020] Figure 2 is the front view of the anchor bolt packaging pipe threading device for the foundation of a wind turbine generator set of the present invention;

[0021] Figure 3 is Figure 2 the left view of;

[0022] Figure 4 is Figure 2 the rear view of;

[0023] Figure 5 is the structural schematic diagram of the rotating assembly of the present invention;

[0024] Figure 6 is the structural schematic diagram of the second grooved roller of the present invention;

[0025] In the figure: 1 - base; 2 - motor; 3 - column; 4 - second connecting rod; 5 - second grooved roller; 6 - first grooved roller; 7 - roller fixing seat; 8 - rotating shaft; 9 - first bearing; 10 - bracket; 11 - spring; 12 - belt; 13 - foot pedal; 14 - stiffening plate; 15 - chute; 16 - first pulley; 17 - second pulley; 18 - PE pipe; 19 - support plate; 20 - anchor bolt; 21 - first groove; 22 - first connecting rod; 23 - second groove; 24 - pin; 25 - fixed shaft; 26 - second bearing; 27 - third connecting rod; 28 - fourth connecting rod; 29 - through hole. Detailed Embodiment

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] As Figures 1-6 shown, the present invention is an anchor bolt packaging pipe-passing device for a wind turbine foundation, including a base 1. Through holes 29 are provided at the four corners of the base 1, and anchor bolts are inserted into the through holes 29 to fix the base 1 on the ground. A motor 2 and a column 3 are fixedly connected to the base 1 by bolts. The column 3 is in a cuboid shape, and stiffening plates 14 are vertically welded at the four corners of the bottom. The top of the column 3 extends to the radial side of the motor 2 and is welded with a support plate 19. A roller fixing seat 7 is provided at one end of the support plate 19 close to the motor 2 along the direction in which the anchor bolt 20 penetrates. A vertical chute 15 is provided on the roller fixing seat 7. A first grooved roller 6 is fixedly connected from top to bottom in the chute 15 and slidably connected with a second grooved roller 5. The anchor bolt 20 is clamped between the first grooved roller 6 and the second grooved roller 5; a first pulley 16 is connected to the output shaft of the motor 2. A second pulley 17 is provided at one end of the second grooved roller 5 on the same side as the first pulley 16. The first pulley 16 and the second pulley 17 are driven by a belt 12; brackets 10 are symmetrically provided on the support plate 19 above the column 3 perpendicular to the direction in which the anchor bolt 20 penetrates. A semi-circular first groove 21 is provided at the center of the top of the bracket 10. A PE pipe 18 concentric with the anchor bolt 20 is horizontally placed in the first groove 21. Three sets of rotating components in an inverted triangular shape are provided on the bracket 10 outside the first groove 21. The rotating component includes a rotating shaft 8 penetrating the bracket 10, and three first bearings 9 are sleeved on the rotating shaft 8; Springs 11 are welded to both sides of the bottom of the support plate 19 away from the motor 2. The free ends of the springs 11 are welded to one end of a first connecting rod 22. The other end of the first connecting rod 22 is rotatably connected to one end of a second connecting rod 4 by a pin 24. A semi-circular second groove 23 is provided at the other end of the second connecting rod 4. The end of the second grooved roller 5 is clamped into the second groove 23; A fixed shaft 25 is welded to one side of the middle of the column 3 close to the motor 2. Two second bearings 26 are inserted into both ends of the fixed shaft 25 for support. The inner ring of the second bearing 26 is fixedly connected to the fixed shaft 25, and the outer ring of the second bearing 26 is welded to the first connecting rod 22. During pipe passing, the outer ring of the second bearing 26 can rotate with the rotation of the first connecting rod 22; One end of the first connecting rod 22 close to the column 3 is connected to one end of a bent third connecting rod 27. The other end of the third connecting rod 27 is connected to a horizontal fourth connecting rod 28. A foot pedal 13 is provided on the fourth connecting rod 28 close to the belt 12. An anti-slip pad is adhered to the foot pedal 13.

[0028] Taking an anchor bolt with a specification of M39×5225mm as an example, the pipe-passing steps are described below:

[0029] Step 1: First, apply an anticorrosive grease with a thickness of 1 mm on the outer side of the anchor bolt 20. Then, wind the anticorrosive grease tape in a layer-by-layer stacking manner on the non-threaded part of the anchor bolt 20 after applying the anticorrosive grease. After winding, apply another layer of anticorrosive grease on the surface of the anticorrosive grease tape. It is required that the total thickness of the anticorrosive grease on the outer side of the anchor bolt and the anticorrosive grease tape is 1 mm larger than the gap between the PE pipe 18 and the anchor bolt 20;

[0030] Step 2: Clamp one end of the anchor bolt 20 obtained in Step 1 between the first grooved roller 6 and the second grooved roller 5. Then, place the PE pipe 18 with dimensions of φ45×2×4780 mm in the first groove 21, and clamp the end of the PE pipe 18 between the first grooved roller 6 and the second grooved roller 5, so that the anchor bolt 20 and the PE pipe 18 are concentric;

[0031] Step 3: Start the motor 2. The motor 2 rotates counterclockwise. Step on the foot pedal 13, and the spring 11 is stretched, pulling the fourth connecting rod 28 and the third connecting rod 27 downward. While driving the first connecting rod 22 downward in sequence, the outer ring of the second bearing 26 rotates synchronously. Since the first connecting rod 22 and the second connecting rod 4 are rotationally connected, the second connecting rod 4 moves upward, driving the second grooved roller 5 connected to the second connecting rod 4 upward. The belt 12 is stressed and tightened, driving the second grooved roller 5 to rotate counterclockwise. The frictional action between the second grooved roller 5 and the first grooved roller 6 forms an upward and downward reverse clamping force on the PE pipe 18. Driven by the second grooved roller 5, the PE pipe 18 moves toward the side of the anchor bolt 20, enabling the anchor bolt 20 to smoothly penetrate into the PE pipe 18, achieving the purpose of automatic pipe penetration;

[0032] Step 4: After the pipe penetration is completed, release the foot pedal 13, and the spring 11 resets. The fourth connecting rod 28 moves upward and drives the third connecting rod 27 and the first connecting rod 22 upward in sequence. The second connecting rod 4 moves downward under the pull of the first connecting rod 22, driving the second grooved roller 5 downward to complete one pipe penetration operation. After pipe penetration, the anticorrosive grease and the anticorrosive grease tape are compressed and fill the entire gap between the PE pipe 18 and the anchor bolt 20. Without frequently turning off the motor 2, this application intermittently and piece by piece completes the pipe penetration of the anchor bolt 20, with a controllable process and high efficiency.

Claims

1. An anchor bolt packaging and pipe-passing device for a wind turbine foundation, characterized in that: It includes a base (1), on which a motor (2) and a column (3) are provided. At the top of the column (3), there is a support plate (19) extending to one radial side of the motor (2). At one end of the support plate (19) close to the motor (2), a roller fixing seat (7) is provided along the direction in which the anchor bolt (20) penetrates. On the roller fixing seat (7), there is a vertical chute (15). In the chute (15), a first grooved roller (6) is fixedly connected from top to bottom and a second grooved roller (5) is slidably connected. An anchor bolt (20) is clamped between the first grooved roller (6) and the second grooved roller (5); A first pulley (16) is connected to the output shaft of the motor (2). At one end of the second grooved roller (5) on the same side as the first pulley (16), there is a second pulley (17). The first pulley (16) and the second pulley (17) are driven by a belt (12); On the top of the support plate (19) above the column (3), brackets (10) are symmetrically provided perpendicular to the direction in which the anchor bolt (20) penetrates. At the center of the top of the bracket (10), there is a semi-circular first groove (21). In the first groove (21), a PE pipe (18) concentric with the anchor bolt (20) is horizontally placed. A rotating assembly is provided on the bracket (10) outside the first groove (21); The rotating assembly is in three groups and is arranged in an inverted triangular shape outside the first groove (21); At both sides of the bottom of the end of the support plate (19) away from the motor (2), springs (11) are connected. The free ends of the springs (11) are connected to one end of a first connecting rod (22). The other end of the first connecting rod (22) is rotatably connected to one end of a second connecting rod (4). The other end of the second connecting rod (4) is connected to the end of the second grooved roller (5); Near one side of the motor (2) in the middle of the column (3), a fixed shaft (25) is fixedly connected. Both ends of the fixed shaft (25) are supported by second bearings (26). The outer rings of the second bearings (26) are fixedly connected to the first connecting rod (22); At the bottom of the first connecting rod (22) close to the column (3) side, it is connected to one end of a third connecting rod (27). The other end of the third connecting rod (27) is connected to a horizontal fourth connecting rod (28). A foot pedal (13) is provided on the fourth connecting rod (28).

2. The anchor bolt packaging and pipe threading equipment for a wind turbine foundation according to claim 1, characterized in that: The rotating assembly includes a rotating shaft (8) passing through the bracket (10), and a number of first bearings (9) are sleeved on the rotating shaft (8).

3. The anchor bolt packaging and pipe-passing equipment for the foundation of a wind turbine unit according to claim 1, characterized in that: At the top end of the second connecting rod (4), there is a semi-circular second groove (23), and the end of the second grooved roller (5) is clamped into the second groove (23).

4. The anchor bolt packaging and pipe threading equipment for a wind turbine foundation according to claim 3, wherein: The first connecting rod (22) and the second connecting rod (4) are connected by a pin (24).

5. The anchor bolt packaging and pipe threading equipment for the foundation of a wind turbine unit according to claim 4, characterized in that: The third connecting rod (27) is bent.

6. The anchor bolt packaging and pipe-passing equipment for a wind turbine foundation according to claim 1, characterized in that: The column (3) is in a cuboid shape, and stiffening plates (14) are vertically and fixedly connected at the four corners of the bottom.

7. A pipe-passing device for packaging anchor bolts for a wind turbine foundation according to any one of claims 1-6, characterized in that: Through holes (29) are provided at the four corners of the base (1).

8. A pipe-piercing device for packaging anchor bolts for a wind turbine foundation according to any one of claims 1-6, characterized in that: The foot pedal (13) is provided with an anti-slip pad.

Images