Nut pre-adjusting device for anchor rod and using method of nut pre-adjusting device

Abstract

The invention relates to the technical field of nut installation, in particular to a nut pre-adjusting device for an anchor rod and a using method of the nut pre-adjusting device. Comprising a frame structure; the rotating wheel is rotatably arranged on the frame structure, and the central axis of the rotating wheel is parallel to the central axis of the anchor rod; the positioning plate is movably arranged on the frame structure, the positioning plate is perpendicular to the anchor rod, and the position of the positioning plate is adjusted so that one side of the nut can abut against the positioning plate when the nut is installed, and then the nut reaches the designed position; and the limiting mechanism is arranged on the frame structure and is used for limiting the anchor rod. The device has the beneficial effects that the rotating wheel is arranged on the frame structure and drives the nut to rotate, so that the nut rotates to the preset position of the anchor rod; through the positioning plate, the nut abuts against the positioning plate after rotating to the preset position, and therefore it is determined that the nut moves to the preset position.

Description

Technical Field

[0001] The present invention relates to the technical field of nut installation, and particularly to a nut pre-adjusting device for an anchor rod and a using method thereof. Background Art

[0002] In the field of wind power generation, pre-stressed anchor rods are often used for the foundation of wind turbines. The number of pre-stressed anchor rods installed is large (each wind turbine foundation has 200 anchor rods), and the installation accuracy is relatively high: the levelness of the upper anchor plate should meet ≤1.5 mm before concrete pouring and before secondary grouting, and the levelness of the upper anchor plate should meet ≤2 mm after secondary grouting, and the perpendicularity (coaxiality) ≤3 mm. Before installing the anchor rod, workers need to pre-adjust the position of the anchor rod nut to facilitate the overall installation of the anchor rod. Pre-adjusting the anchor rod nut on site often takes a lot of time: first, a worker uses tools such as a tape measure or a wooden stick with a fixed length for rough pre-adjustment, and then another worker uses a vernier caliper for fine adjustment. Generally, both the upper and lower ends of one anchor rod need to be pre-adjusted, and a total of 400 places need to install and pre-adjust the nut. Such construction not only wastes labor costs but also time costs, and the qualified rate of pre-adjusted nuts cannot be guaranteed to be 100%.

[0003] Therefore, the present invention provides a nut pre-adjusting device for an anchor rod and a using method thereof. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art, and provide a nut pre-adjusting device for an anchor rod and a using method thereof, so as to solve the problems of low efficiency and low qualified rate of the existing manual pre-adjusting method.

[0005] The technical solution for realizing the above purpose is as follows:

[0006] The present invention provides a nut pre-adjusting device for an anchor rod, including:

[0007] A frame structure;

[0008] A rotating wheel rotatably arranged on the frame structure, the central axis of the rotating wheel is parallel to the central axis of the anchor rod, and a serrated long protrusion is formed on the surface of the rotating wheel, and the side surface of the nut abuts against the protrusion, so that the rotating wheel drives the nut to rotate when rotating;

[0009] A positioning plate movably arranged on the frame structure, the positioning plate is perpendicular to the anchor rod, and the position of the positioning plate is adjusted so that one side of the nut abuts against the positioning plate during installation, thereby reaching the designed position;

[0010] A limiting mechanism arranged on the frame structure for limiting the anchor rod.

[0011] Further, the frame structure includes:

[0012] Support plate;

[0013] The third rod fixedly arranged on the support plate, and the third rod is located at the edge of the support plate;

[0014] The first rod fixedly arranged on the support plate, the first rod is perpendicular to the third rod, and one end extends out of the support plate to form a cantilever;

[0015] The second rod, the second rod is fixedly arranged on the first rod and is parallel to the third rod, and the rotating wheel is rotatably arranged between the second rod and the third rod.

[0016] Further, it further includes a guide rail arranged on the first rod, the guide rail is arranged along the length direction of the first rod, and one end of the positioning plate is movably arranged on the guide rail.

[0017] Further, the limiting mechanism includes:

[0018] A support frame fixedly arranged on the first rod and a first stabilizer fixedly arranged on the support frame, the first stabilizer is annular and sleeved on the anchor rod;

[0019] A second stabilizer fixedly arranged on the side surface of the third rod, the second stabilizer is circular, and a circular groove for clamping the end of the anchor rod is arranged on the corresponding side, and the second stabilizer and the first stabilizer are located on the same central axis.

[0020] Further, it further includes:

[0021] A battery fixedly arranged on the support plate;

[0022] A motor fixedly arranged on the support plate and connected to the battery, an output shaft of the motor passes through the third rod and is coaxially connected to the rotating wheel;

[0023] A button arranged on the support plate for controlling the start and stop of the motor, and the button is connected to the motor.

[0024] The present invention also provides a usage method of a nut pre-adjusting device for an anchor rod, which specifically includes the following steps:

[0025] According to the position where the nut needs to be pre-adjusted, move the positioning plate to an appropriate position;

[0026] Fix the device on the threaded end of the anchor rod through the limiting mechanism, and manually screw the nut onto the thread of the anchor rod;

[0027] Rotate the rotating wheel, and the side of the nut is embedded between two adjacent long protrusions, so that the rotating wheel drives the nut to rotate, and then the nut is screwed to the designated position on the anchor rod;

[0028] Until the nut abuts against the positioning plate, stop rotating the rotating wheel, remove the device and pre-adjust the nut on the next anchor rod.

[0029] Furthermore, when adjusting the positioning plate, push or pull the positioning plate so that one end corresponding to the positioning plate moves along the length direction of the first rod on the guide rail of the first rod, and fix the positioning plate after adjusting to an appropriate position.

[0030] Furthermore, the specific steps for fixing the device are as follows:

[0031] Put the first stabilizer on the anchor rod;

[0032] Insert the end of the anchor rod into the circular groove of the second stabilizer.

[0033] Furthermore, before inserting the end of the anchor rod into the second stabilizer, screw the nut onto the end of the anchor rod.

[0034] Furthermore, when rotating the rotating wheel, press the button to start the motor, so that the motor drives the rotating wheel to rotate.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] By arranging a rotating rotating wheel on the frame structure, the rotating wheel drives the nut to rotate, so that the nut rotates to the pre-adjusted position of the anchor rod; by arranging a movable positioning plate on the frame structure, the positioning plate is moved to the designated position, so that after the nut rotates to the pre-adjusted position, it abuts against the positioning plate, thereby determining that the nut moves to the pre-adjusted position, and repeatedly pre-adjusting the nuts of other anchor rods to ensure that the pre-adjusted positions of the nuts are consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figures 1 to 2 It is a schematic structural diagram of a nut pre-adjusting device for an anchor rod according to the present invention.

[0038] Figure 3 It is a top view of a nut pre-adjusting device for an anchor rod according to the present invention.

[0039] Figure 4 It is a side view of a nut pre-adjusting device for an anchor rod according to the present invention.

[0040] Legend: 1. Anchor bolt; 2. Nut; 3. Rotating wheel; 4. Positioning plate; 5. Slide rail; 6. First stabilizer; 7. First rod; 8. Second rod; 9. Motor; 10. Support plate; 11. Button; 12. Third rod; 13. Second stabilizer; 14. Battery. Detailed implementation

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] Refer to Figure 1 The present invention provides a nut pre-adjustment device for an anchor bolt and its usage method, which solves the problems of low efficiency of the existing manual pre-adjustment method and low qualification rate of pre-adjusted nuts. By setting a rotating wheel on the frame structure, the rotating wheel drives the nut to rotate, so that the nut rotates to the pre-adjustment position of the anchor bolt; by setting a movable positioning plate on the frame structure, the positioning plate moves to the specified position, and after the nut rotates to the pre-adjustment position, it abuts against the positioning plate, thereby determining that the nut moves to the pre-adjustment position, and repeatedly pre-adjusting the nuts of other anchor bolts to ensure that the pre-adjustment positions of the nuts are consistent.

[0043] The following will describe a nut pre-adjustment device for an anchor bolt and its usage method according to the present invention with reference to the accompanying drawings.

[0044] Refer to Figures 1 to 2 which shows a schematic structural view of a nut pre-adjustment device for an anchor bolt according to the present invention. Refer to Figure 3 which shows a top view of a nut pre-adjustment device for an anchor bolt according to the present invention. Refer to Figure 4 which shows a side view of a nut pre-adjustment device for an anchor bolt according to the present invention. The following will be combined with Figures 1 to 4 to describe a nut pre-adjustment device for an anchor bolt and its usage method according to the present invention.

[0045] As Figures 1 to 4 shown, a nut pre-adjustment device for an anchor bolt according to the present invention includes:

[0046] A frame structure;

[0047] A rotating wheel 3 rotatably provided on the frame structure, the central axis of the rotating wheel 3 is parallel to the central axis of the anchor bolt 1, and a serrated long protrusion is formed on the surface of the rotating wheel 3, and the side surface of the nut 2 abuts against the protrusion, so that the rotating wheel 3 drives the nut 2 to rotate when rotating;

[0048] A positioning plate 4 movably provided on the frame structure, the positioning plate 4 is perpendicular to the anchor bolt 1, and the position of the positioning plate 4 is adjusted so that one side of the nut 2 abuts against the positioning plate 4 when installed, and thus reaches the designed position;

[0049] A limiting mechanism provided on the frame structure for limiting the anchor rod 1.

[0050] In a specific embodiment, the frame structure includes:

[0051] A support plate 10;

[0052] A third rod 12 fixedly provided on the support plate 10, and the third rod 12 is located at the edge of the support plate 10;

[0053] A first rod 7 fixedly provided on the support plate 10, the first rod 7 is perpendicular to the third rod 12, and one end extends out of the support plate 10 to form a cantilever;

[0054] A second rod 8, the second rod 8 is fixedly provided on the first rod 7 and is parallel to the third rod 12, and the rotating wheel 3 is rotatably provided between the second rod 8 and the third rod 12.

[0055] In a specific embodiment, it further includes a guide rail 5 provided on the first rod 7, the guide rail 5 is provided along the length direction of the first rod 7, and one end of the positioning plate 4 is movably provided on the guide rail 5.

[0056] Specifically, a U-shaped slider is provided at the corresponding end of the positioning plate 4, the U-shaped slider is provided on the guide rail 5, and screws are provided on both sides of the U-shaped slider, and the ends of the screws abut against the corresponding side surfaces of the guide rail 5. By providing the U-shaped slider, the positioning plate 4 can slide more smoothly on the guide rail 5, and by the ends of the screws abutting against the side surfaces of the guide rail 5, the positioning plate 4 is fixed, preventing the pre-adjustment effect of the nut 2 from being inconsistent due to the movement of the positioning plate 4.

[0057] The positioning plate 4 is integrally U-shaped, and the opening is located above the rotating wheel 3 to prevent the rotating wheel 3 from colliding with the positioning plate 4.

[0058] In a specific embodiment, the limiting mechanism includes:

[0059] A support frame fixedly provided on the first rod 7 and a first stabilizer 6 fixedly provided on the support frame, the first stabilizer 6 is annular and sleeved on the anchor rod 1;

[0060] A second stabilizer 13 fixedly provided on the side surface of the third rod 12, the second stabilizer 13 is circular, and a circular groove for clamping the end of the anchor rod 1 is provided on the corresponding side, and the second stabilizer 13 and the first stabilizer 6 are on the same central axis.

[0061] Specifically, two mutually parallel screws are fixedly provided on the side of the support frame away from the first stabilizer 6. The two screws are inserted into the first rod 7 and pass through the first rod 7, and the two screws are perpendicular to the first rod 7. Two hex nuts are provided on each of the two screws, and the hex nuts are respectively located on both sides of the first rod 7. The first rod 7 is clamped by the two hex nuts to ensure the stability of the support frame.

[0062] The first rod 7, the second rod 8 and the third rod 12 are hollow square tubes.

[0063] In a specific embodiment, it further includes:

[0064] A battery 14 fixedly provided on the support plate 10;

[0065] A motor 9 fixedly provided on the support plate 10 and connected to the battery 14. The output shaft of the motor 9 passes through the third rod 12 and is coaxially connected to the rotating wheel 3;

[0066] A button 11 provided on the support plate 10 for controlling the start and stop of the motor 9. The button 11 is connected to the motor 9.

[0067] Specifically, rotating rods are coaxially fixedly provided at both ends of the rotating wheel 3. The corresponding rotating rods pass through the third rod 12 and are coaxially fixed to the output shaft of the motor 9. The rotating shaft at the end away from the motor 9 is rotatably inserted into the second rod 8.

[0068] The rotating wheel 3 is made of a soft material to prevent the hard rotating wheel 3 from damaging the outer surface of the nut 2.

[0069] The present invention also proposes a usage method for a nut pre-adjustment device for an anchor rod, which specifically includes the following steps:

[0070] According to the position where the nut 2 needs to be pre-adjusted, move the positioning plate 4 to an appropriate position;

[0071] Fix the device to the threaded end of the anchor rod 1 through the limiting mechanism, and manually screw the nut 2 onto the thread of the anchor rod 1;

[0072] Rotate the rotating wheel 3, and the side surface of the nut 2 is embedded between two adjacent long protrusions, so that the rotating wheel 3 drives the nut 2 to rotate, and further screw the nut 2 to the designated position on the anchor rod 1;

[0073] Until the nut 2 abuts against the positioning plate 4, stop rotating the rotating wheel 3, remove the device and pre-adjust the nut 2 on the next anchor rod 1.

[0074] In a specific embodiment, when adjusting the positioning plate 4, push or pull the positioning plate 4 so that one end corresponding to the positioning plate 4 moves along the length direction of the first rod 7 on the guide rail 5 of the first rod 7, and fix the positioning plate 4 after adjusting it to an appropriate position.

[0075] Preferably, the first rod 7 is away from the

[0076] In a specific embodiment, the specific steps for fixing the device are as follows:

[0077] Put the first stabilizer 6 on the anchor rod 1;

[0078] Embed the end of the anchor rod 1 into the circular groove of the second stabilizer 13.

[0079] In a specific embodiment, before embedding the end of the anchor rod 1 into the second stabilizer 13, screw the nut 2 onto the end of the anchor rod 1.

[0080] In a specific embodiment, when rotating the rotating wheel 3, press the button 11 to start the motor 9, so that the motor 9 drives the rotating wheel 3 to rotate.

[0081] The following is a detailed description of the use process of a nut pre-adjustment device for an anchor rod according to the present invention.

[0082] The present invention is applicable to the construction of nut pre-adjustment for prestressed anchor rods used on the foundation of a wind turbine. The prestressed anchor rods of the wind turbine foundation are often vertically fixed on the ground, and the nut 2 of each prestressed anchor rod needs to be pre-adjusted to the same position.

[0083] When using this device, first adjust the position of the positioning plate 4. First loosen the two screws, then move the positioning plate 4. The U-shaped slider of the positioning plate 4 slides on the guide rail 5. When it slides to an appropriate position, tighten the two screws to fix the position of the positioning plate 4, so as to prevent the inconsistent pre-adjustment position of the nut 2 caused by the movement of the positioning plate 4.

[0084] Put the first stabilizer 6 on the anchor rod 1, then screw the nut 2 onto the screw rod at the upper end of the anchor rod 1, and move the device downward so that the upper end of the anchor rod 1 is embedded into the circular groove of the first stabilizer 13, thereby limiting the device on the anchor rod 1.

[0085] Press the button 11 to start the motor 9, so that the motor 9 drives the rotating wheel 3 to rotate. At the same time, the rotating wheel 3 drives the nut 2 to rotate, so that the nut 2 gradually approaches the positioning plate 4 until the nut 2 abuts against the positioning plate 4. When the nut 2 reaches the position that needs to be pre-adjusted, press the button 11 to turn off the motor 9.

[0086] Then repeat the above steps to pre-adjust the nut 2 of the next anchor rod 1.

[0087] The present invention has been described in detail in combination with the accompanying drawings and embodiments. Those of ordinary skill in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present invention, and the protection scope of the present invention will be defined by the scope defined in the appended claims.

Claims

1. A nut pre-adjusting device for an anchor rod, characterized in that: include: Frame structure; A rotating wheel (3) rotatably arranged on the frame structure, the central axis of the rotating wheel (3) is parallel to the central axis of the anchor rod (1), the surface of the rotating wheel (3) is formed with a sawtooth-shaped long strip protrusion, and the side surface of the nut (2) abuts against the protrusion, so that the rotating wheel (3) drives the nut (2) to rotate when rotating; A positioning plate (4) movably arranged on the frame structure, the positioning plate (4) and the anchor rod (1) being perpendicular to each other, and the position of the positioning plate (4) being adjusted so that one side of the nut (2) abuts against the positioning plate (4) during installation, thereby reaching the designed position; A limiting mechanism is provided on the frame structure and is used to limit the position of the anchor rod (1).

2. A nut presetting device for an anchor rod according to claim 1, characterized in that: The framework structure comprises: Support plate (10); a third rod (12) fixedly mounted on the support plate (10), wherein the third rod (12) is located at an edge of the support plate (10); A first rod (7) fixedly mounted on the support plate (10), wherein the first rod (7) and the third rod (12) are perpendicular to each other, and one end of the first rod extends out of the support plate (10) to form a cantilever; A second rod (8), the second rod (8) is fixedly mounted on the first rod (7) and is parallel to the third rod (12), and the rotating wheel (3) is rotatably mounted between the second rod (8) and the third rod (12).

3. A nut pre-adjusting device for an anchor rod according to claim 2, characterized in that: It also comprises a guide rail (5) arranged on the first rod (7), the guide rail (5) being arranged along the length direction of the first rod (7), and one end of the positioning plate (4) being movably arranged on the guide rail (5).

4. A nut presetting device for an anchor rod according to claim 2, characterized in that: The limiting mechanism comprises: a support frame fixedly mounted on the first rod (7) and a first stabilizer (6) fixedly mounted on the support frame, wherein the first stabilizer (6) is annular and sleeved on the anchor rod (1); A second stabilizer (13) is fixedly mounted on the side of the third rod (12); the second stabilizer (13) is circular and has a circular groove on one side thereof for engaging with the end of the anchor rod (1); the second stabilizer (13) and the first stabilizer (6) are located on the same central axis.

5. A nut presetting device for an anchor rod according to claim 2, characterized in that: Also includes: A battery (14) fixedly mounted on the support plate (10); a motor (9) fixedly mounted on the support plate (10) and connected to the battery (14), wherein the output shaft of the motor (9) passes through the third rod (12) and is coaxially connected to the rotating wheel (3); A button (11) for controlling the start and stop of the motor (9) is provided on the support plate (10), and the button (11) is connected to the motor (9).

6. A method for using the nut presetting device for an anchor rod according to claim 1, characterized in that: The specific steps include: According to the position to be pre-adjusted of the nut (2), the positioning plate (4) is moved to an appropriate position; The device is fixed to one end of the anchor rod (1) having a thread by means of the limiting mechanism, and a nut (2) is manually screwed onto the thread of the anchor rod (1); The rotating wheel (3) is rotated, and the side surface of the nut (2) is embedded between two adjacent long protrusions, so that the rotating wheel (3) drives the nut (2) to rotate, and then the nut (2) is screwed on the specified position of the anchor rod (1); Until the nut (2) abuts against the positioning plate (4), the rotation of the rotating wheel (3) is stopped, the device is removed, and the nut (2) on the next anchor rod (1) is pre-adjusted.

7. The method for using the nut presetting device for anchor rods according to claim 6, characterized in that: When adjusting the positioning plate (4), the positioning plate (4) is pushed or pulled so that the corresponding end of the positioning plate (4) moves on the guide rail (5) of the first rod (7) along the length direction of the first rod (7), and the positioning plate (4) is fixed after being adjusted to an appropriate position.

8. The method for using the nut presetting device for anchor rods according to claim 6, characterized in that: The specific steps of fixing the device are: Putting a first stabilizer (6) on the anchor rod (1); The end of the anchor rod (1) is embedded in the circular groove of the second stabilizer (13).

9. The method for using the nut presetting device for anchor rods according to claim 8, characterized in that: Before the end of the anchor rod (1) is embedded in the second stabilizer (13), the nut (2) is screwed onto the end of the anchor rod (1).

10. The method for using the nut presetting device for anchor rods according to claim 6, characterized in that: When the rotating wheel (3) is rotated, the button (11) is pressed to start the motor (9), so that the motor (9) drives the rotating wheel (3) to rotate.

Images