Steel-mixing tower steel strand anti-twist threading tool

Abstract

The utility model relates to steel strand field of wearing, concretely is a kind of steel mixed tower cylinder steel strand anti-twist wearing tool, including hole, the steel strand main body of wearing in hole and arc connecting block, the outer surface of arc connecting block is fixedly connected with second guide half ring and second fixed half ring, the side, away from arc connecting block of second guide half ring is provided with first guide half ring, through the cooperation between first guide half ring, second guide half ring, ball, first fixed half ring, flexible clamping pad and limiting mechanism, when wearing to steel strand main body, it can make device whole with the steel strand main body of wearing process together move, and when moving, first guide half ring and second guide half ring will along the steel strand main body of wearing completion slide, to be able to to the steel strand main body in wearing process play guiding constraint effect, to be able to avoid the steel strand main body in wearing process and appear twist phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of steel strand threading technology, specifically to a steel-concrete tower steel strand anti-twisting threading tool. Background Technology

[0002] Against the backdrop of the continuous development of the wind power industry, large wind turbine generators have placed higher demands on the stability, load-bearing capacity, and economy of their supporting structures. As a core supporting structure composed of concrete and steel, the reinforced concrete tower has been widely used in large wind turbine generators due to its excellent structural stability, high strength load-bearing capacity, and good economic efficiency.

[0003] To further enhance the crack resistance and load-bearing capacity of the overall reinforced concrete tower structure, a large number of steel strands are typically laid inside according to design requirements. Threading the steel strands is a crucial step in the construction of reinforced concrete towers, requiring the precise insertion of multiple steel strands into pre-designed ducts to lay the foundation for subsequent tensioning operations.

[0004] Currently, the industry generally uses simple traction heads for steel strand threading. However, such traditional tools lack effective anti-torsion constraint structures. During the threading process, the steel strands are prone to rotation and torsion due to factors such as uneven weight distribution, fluctuations in friction on the inner wall of the duct, and deviation in traction direction. The torsion of the steel strands not only leads to increased threading resistance and reduced threading efficiency, but may also cause damage to the internal steel wires, affecting their mechanical properties and thus adversely affecting the overall structural safety of the steel-concrete tower.

[0005] Therefore, this utility model provides a tool for preventing twisting of steel strands in steel-concrete towers to solve the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a steel-concrete tower steel strand anti-twisting threading tool to solve the problem that the steel strand is prone to rotation and twisting during the threading process due to factors such as uneven weight distribution, fluctuation of friction force on the inner wall of the duct, and deviation of traction direction.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A tool for preventing twisting of steel strands in a steel-concrete tower includes a channel, a main body of steel strands threaded within the channel, and an arc-shaped connecting block. A second guide semi-ring and a second fixed semi-ring are fixedly connected to the outer surface of the arc-shaped connecting block. A first guide semi-ring is provided on the side of the second guide semi-ring away from the arc-shaped connecting block. Multiple balls are rotatably embedded inside both the first and second guide semi-rings. A first fixed semi-ring is provided on the side of the second fixed semi-ring away from the arc-shaped connecting block. Flexible clamping pads are fixedly installed inside both the first and second fixed semi-rings. A limit mechanism is provided on the arc-shaped connecting block.

[0009] Preferably, the limiting mechanism includes a first insert block fixedly connected to the outer surface of the first guide semi-ring, a first slot adapted to the first insert block is opened inside the second guide semi-ring, and the first insert block is inserted into the inside of the first slot, and a first limiting hole is opened inside the first insert block.

[0010] Preferably, the limiting mechanism further includes a second insert block fixedly connected to the outer surface of the first fixed half ring, the second fixed half ring having a second slot adapted to the second insert block inside, and the second insert block being inserted into the second slot, the second insert block having a second limiting hole inside.

[0011] Preferably, the limiting mechanism further includes a bidirectional lead screw rotatably installed inside the arc-shaped connecting block. The outer surface of the bidirectional lead screw is threaded with two symmetrical arc-shaped moving plates. Moving rings are fixedly connected to both sides of the two arc-shaped moving plates. A limiting rod is fixedly connected to the side of each moving ring near the arc-shaped connecting block.

[0012] Preferably, the second guide semi-ring has a first circular hole adapted to the limiting rod inside, and one end of the limiting rod on one of the moving rings slides through the first circular hole and is inserted into the first limiting hole.

[0013] Preferably, the second fixed half-ring has a second circular hole inside that matches the limiting rod, and one end of the limiting rod on the other moving ring slides through the second circular hole and is inserted into the second limiting hole.

[0014] Preferably, a baffle is fixedly welded to one end of the bidirectional lead screw, and a knob is fixedly welded to the other end.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Through the cooperation of the first guide half-ring, the second guide half-ring, the ball bearing, the first fixed half-ring, the flexible clamping pad, and the limiting mechanism, when threading the steel strand body, the entire device can move together with the steel strand body during the threading process. During the movement, the first guide half-ring and the second guide half-ring will slide along the threaded steel strand body, thereby providing guidance and constraint for the steel strand body during the threading process, and thus preventing the steel strand body from twisting during the threading process.

[0017] 2. Through the cooperation of the two-way lead screw, the arc-shaped moving plate, the moving ring and the limiting rod, the first guide half ring and the first fixed half ring can be disassembled and assembled by simply turning the knob, which can greatly improve the disassembly and assembly efficiency of the first guide half ring and the first fixed half ring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the concealed channel and the main body of the steel strand of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the first guide semi-ring and the first insert block of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the second guide semi-ring of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the first fixed half-ring and the second insert block of this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the second fixed half-ring of this utility model.

[0024] Figure 7 This is a schematic diagram showing the connection between the bidirectional lead screw and the arc-shaped moving plate of this utility model.

[0025] In the diagram: 1. Channel; 2. Steel strand body; 3. First guide semi-ring; 4. Limiting rod; 5. First insert block; 6. First limiting hole; 7. Second guide semi-ring; 8. First slot; 9. Ball bearing; 10. First fixed semi-ring; 11. Second insert block; 12. Second limiting hole; 13. Second fixed semi-ring; 14. Second slot; 15. Flexible clamping pad; 16. Arc-shaped connecting block; 17. Two-way lead screw; 18. Arc-shaped moving plate; 19. Moving ring. Detailed Implementation

[0026] The following will refer to the attached reference. Figures 1 to 7The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0027] A tool for preventing twisting of steel strands in a steel-concrete tower includes a channel 1, a main body 2 of steel strands threaded within the channel 1, and an arc-shaped connecting block 16. A second guide semi-ring 7 and a second fixed semi-ring 13 are fixedly connected to the outer surface of the arc-shaped connecting block 16. A first guide semi-ring 3 is provided on the side of the second guide semi-ring 7 away from the arc-shaped connecting block 16. Multiple balls 9 are rotatably embedded inside both the first guide semi-ring 3 and the second guide semi-ring 7. The first guide semi-ring 3 and the second guide semi-ring 7 can form a complete ring structure after being combined. Its inner diameter is adapted to the outer diameter of the main body 2 of steel strands. The balls 9 are evenly distributed on the inner side of the semi-rings, which can convert the sliding friction between the main body 2 of steel strands and the semi-rings into rolling friction, reducing the resistance during the threading process, and at the same time avoiding wear on the surface of the main body 2 of steel strands caused by the semi-rings.

[0028] The second fixed half-ring 13 is provided with a first fixed half-ring 10 on the side away from the arc-shaped connecting block 16. Both the first fixed half-ring 10 and the second fixed half-ring 13 have flexible clamping pads 15 fixedly installed inside. The first fixed half-ring 10 and the second fixed half-ring 13 are combined to form a ring structure. Its size is adapted to the main body 2 of the steel strand to be bundled. The flexible clamping pad 15 is made of a material with a certain elasticity, which can not only fit tightly against the surface of the main body 2 of the steel strand to achieve a stable clamping, but also avoid rigid contact that could damage the main body 2 of the steel strand.

[0029] A limiting mechanism is provided on the arc-shaped connecting block 16. The limiting mechanism includes a first insert 5 fixedly connected to the outer surface of the first guide semi-ring 3. The second guide semi-ring 7 has a first slot 8 that is adapted to the first insert 5, and the first insert 5 is inserted into the first slot 8. The first insert 5 has a first limiting hole 6 inside. The shape and size of the first insert 5 and the first slot 8 are precisely matched to ensure that there is no misalignment when the first guide semi-ring 3 and the second guide semi-ring 7 are connected. The position of the first limiting hole 6 corresponds to the movement path of the subsequent limiting rod 4, providing accurate positioning for the insertion of the limiting rod 4, thereby locking the connection between the first guide semi-ring 3 and the second guide semi-ring 7.

[0030] The limiting mechanism also includes a second insert 11 fixedly connected to the outer surface of the first fixed half-ring 10. The second fixed half-ring 13 has a second slot 14 adapted to the second insert 11 inside, and the second insert 11 is inserted into the second slot 14. The second insert 11 has a second limiting hole 12 inside. The shape and size of the second insert 11 and the second slot 14 are precisely matched to ensure that there is no misalignment when the first fixed half-ring 10 and the second fixed half-ring 13 are connected. The position of the second limiting hole 12 corresponds to the movement path of the subsequent limiting rod 4, providing accurate positioning for the insertion of the limiting rod 4, thereby achieving the locking of the connection between the first fixed half-ring 10 and the second fixed half-ring 13.

[0031] The limiting mechanism also includes a bidirectional lead screw 17 rotatably installed inside the arc-shaped connecting block 16. One end of the bidirectional lead screw 17 is fixedly welded with a baffle, and the other end is fixedly welded with a knob. The outer surface of the bidirectional lead screw 17 is threadedly connected to two symmetrical arc-shaped moving plates 18. Both sides of the two arc-shaped moving plates 18 are fixedly connected with moving rings 19. Each moving ring 19 is fixedly connected with a limiting rod 4 on the side near the arc-shaped connecting block 16. When the bidirectional lead screw 17 rotates, it can drive the two arc-shaped moving plates 18 to move horizontally in opposite directions along the bidirectional lead screw 17. The baffle can prevent the arc-shaped moving plates 18 from falling off one end of the bidirectional lead screw 17 during movement, ensuring the safety of the structure operation. The knob is designed to facilitate manual rotation of the bidirectional lead screw 17 by the operator.

[0032] The second guide semi-ring 7 has a first circular hole that matches the limiting rod 4. One end of the limiting rod 4 on one of the moving rings 19 slides through the first circular hole and is inserted into the first limiting hole 6. The diameter of the first circular hole matches the diameter of the limiting rod 4, ensuring that the limiting rod 4 moves smoothly and is accurately inserted into the first limiting hole 6. The cooperation between the limiting rod 4 and the first limiting hole 6 can firmly fix the first insert 5 in the first slot 8, thereby achieving a stable connection between the first guide semi-ring 3 and the second guide semi-ring 7 and preventing separation during the guiding process.

[0033] The second fixed half-ring 13 has a second round hole that matches the limiting rod 4. One end of the limiting rod 4 on the other moving ring 19 slides through the second round hole and is inserted into the second limiting hole 12. The second round hole also matches the diameter of the limiting rod 4, ensuring that the limiting rod 4 moves smoothly. After the limiting rod 4 is inserted into the second limiting hole 12, the second insert 11 can be fixed in the second slot 14, so that the first fixed half-ring 10 and the second fixed half-ring 13 are tightly connected, ensuring that the clamping force on the steel strand body 2 is stable and reliable.

[0034] Working principle: When performing the steel strand threading operation, firstly, the first guide half ring 3 and the second guide half ring 7 are clamped on the steel strand body 2 that has been threaded. At this time, the first insert 5 is inserted into the first slot 8. Then, the first fixing half ring 10 and the second fixing half ring 13 are clamped on the steel strand body 2 to be threaded, so that the flexible clamping pad 15 fits tightly against the steel strand body 2 to be threaded. At this time, the second insert 11 is inserted into the second slot 14.

[0035] Subsequently, the operator turns the knob at one end of the bidirectional lead screw 17. The bidirectional lead screw 17 rotates, causing the two arc-shaped moving plates 18 to move closer to each other along the bidirectional lead screw 17. The arc-shaped moving plates 18 push the limiting rods 4 to move through the moving ring 19. One set of limiting rods 4 passes through the first round hole on the second guide half ring 7 and is inserted into the first limiting hole 6 of the first insert block 5. The other set of limiting rods 4 passes through the second round hole on the second fixed half ring 13 and is inserted into the second limiting hole 12 of the second insert block 11, thereby making the first guide half ring 3 and the second guide half ring 7, and the first fixed half ring 10 and the second fixed half ring 13 form a stable whole.

[0036] Then, one end of the main body 2 of the steel strand to be threaded is lifted by a lifting device for threading. During the threading process, the entire device moves together with the main body 2 of the steel strand to be threaded. During the movement, the balls 9 inside the first guide half ring 3 and the second guide half ring 7 come into contact with the threaded main body 2 and roll. At this time, the ring structure formed by the first guide half ring 3 and the second guide half ring 7 can guide and constrain the main body 2 of the steel strand, restricting it from rotating and twisting during the threading process, thus ensuring the stability of the threading process.

[0037] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A steel mixed tower steel strand anti-twist threading tool, comprising a hole (1), a steel strand body (2) threaded in the hole (1), and an arc-shaped connecting block (16), characterized in that, The outer surface of the arc-shaped connecting block (16) is fixedly connected with a second guide half-ring (7) and a second fixed half-ring (13). A first guide half-ring (3) is provided on the side of the second guide half-ring (7) away from the arc-shaped connecting block (16). Multiple balls (9) are rotatably embedded inside the first guide half-ring (3) and the second guide half-ring (7). A first fixed half-ring (10) is provided on the side of the second fixed half-ring (13) away from the arc-shaped connecting block (16). Flexible clamping pads (15) are fixedly installed inside the first fixed half-ring (10) and the second fixed half-ring (13). A limit mechanism is provided on the arc-shaped connecting block (16).

2. The anti-twist threading tool for steel strand of a steel-concrete tower according to claim 1, characterized in that, The limiting mechanism includes a first insert (5) fixedly connected to the outer surface of the first guide half ring (3), and a first slot (8) adapted to the first insert (5) is opened inside the second guide half ring (7), and the first insert (5) is inserted into the first slot (8), and a first limiting hole (6) is opened inside the first insert (5).

3. The anti-twisting threading tool for steel strands in a reinforced concrete tower according to claim 2, characterized in that, The limiting mechanism further includes a second insert (11) fixedly connected to the outer surface of the first fixed half ring (10). The second fixed half ring (13) has a second slot (14) adapted to the second insert (11) inside, and the second insert (11) is inserted into the second slot (14). The second insert (11) has a second limiting hole (12) inside.

4. The anti-twisting threading tool for steel strands in a reinforced concrete tower according to claim 3, characterized in that, The limiting mechanism also includes a bidirectional lead screw (17) rotatably installed inside the arc-shaped connecting block (16). The outer surface of the bidirectional lead screw (17) is threaded with two symmetrical arc-shaped moving plates (18). Both sides of the two arc-shaped moving plates (18) are fixedly connected with moving rings (19). Each moving ring (19) is fixedly connected with a limiting rod (4) on the side near the arc-shaped connecting block (16).

5. The anti-twisting threading tool for steel strands in a reinforced concrete tower according to claim 4, characterized in that, The second guide half ring (7) has a first circular hole that matches the limiting rod (4) inside. One end of the limiting rod (4) on one of the moving rings (19) slides through the first circular hole and is inserted into the first limiting hole (6).

6. The anti-twisting threading tool for steel strands in a reinforced concrete tower according to claim 4, characterized in that, The second fixed half ring (13) has a second round hole that matches the limiting rod (4) inside. One end of the limiting rod (4) on the other moving ring (19) slides through the second round hole and is inserted into the second limiting hole (12).

7. The anti-twisting threading tool for steel strands in a reinforced concrete tower according to claim 4, characterized in that, One end of the bidirectional lead screw (17) is fixedly welded with a baffle, and the other end is fixedly welded with a knob.

Images