A wind power tower cylinder scribing positioning device

Abstract

A kind of wind power tower cylinder scribe positioning device, including circular arc ruler and two straight rulers in the radial direction of arc ruler, two straight rulers are slidably arranged on circular arc ruler by sliding seat, circular arc ruler is provided with scale for identifying the included angle between two straight rulers, straight ruler is provided with scale for identifying the distance between circular arc ruler and wind power tower inner wall, two sliding seats are provided with laser head, the laser emitted by two laser heads is parallel with the axis of straight ruler, the distance between straight ruler and wind power tower inner wall is adjusted, when circular arc ruler is coaxial with wind power tower, the light emitted by two laser heads meets at the midline of wind power tower.The scribe positioning device is used, by adjusting the length of straight ruler between circular arc ruler and wind power tower inner wall and the position of straight ruler on circular arc ruler, the diameter of wind power tower inner wall and the circumferential dimension of inner wall can be quickly measured, and the scribe positioning in wind power tower inner wall can be quickly realized.

Description

Technical Field

[0001] This invention relates to a marking and positioning device for wind turbine towers, belonging to the technical field of auxiliary devices for marking and positioning the inner wall of wind turbine towers. Background Technology

[0002] Existing wind turbine tower marking and positioning devices, as shown in the Chinese Utility Model Patent "Authorization Announcement No.: CN218428322U; Authorization Announcement Date: February 3, 2023; Patent Name: A Large Diameter Tower Marking and Positioning Device", include an arc-shaped inner scale and two straight marker feet that slide on the arc-shaped inner scale. A laser head and a level are set in the middle of the arc-shaped inner scale. In use, the arc-shaped inner scale is first placed in the radial plane of the tower using the level. Then, the laser head is aligned with the centerline of the tower. The lengths of the marker feet between the inner scale and the inner wall of the tower are adjusted to achieve coaxiality between the inner scale and the tower. Finally, the circumferential dimension of the inner wall of the tower is measured by adjusting the included angle between the two marker feet, thereby completing the marking and positioning.

[0003] The marking and positioning device has the following defects: 1. Only one laser head is set in the middle of the arc-shaped inner scale, and the laser head is set on the convex side of the inner scale, so it is impossible to achieve coaxial adjustment of the inner scale and the tower by aligning the laser with the center line of the tower; 2. The length of the two scale feet needs to be adjusted separately, which is a defect of complicated operation. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned technical deficiencies of existing large-diameter tower marking and positioning devices by providing a wind turbine tower marking and positioning device. This device allows for the simultaneous adjustment of two rulers by rotating a push screw. Combined with the use of laser heads on the sliding seats of the two rulers, it can quickly measure the diameter of different axial regions of the wind turbine tower and rapidly determine the circumferential dimensions of the inner wall of the wind turbine tower. This significantly accelerates the efficiency of marking and positioning on the inner wall of the wind turbine tower, offering the advantage of quick marking and positioning on the inner wall of the wind turbine tower.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A wind turbine tower marking and positioning device includes an arc-shaped ruler and two straight rulers located radially on the arc-shaped ruler. The two straight rulers are slidably mounted on the arc-shaped ruler via sliding seats. The arc-shaped ruler is provided with a scale for marking the included angle between the two straight rulers, and the straight rulers are provided with a scale for marking the distance between the arc-shaped ruler and the inner wall of the wind turbine tower. Each sliding seat is provided with a laser head. The laser beams emitted by the two laser heads are parallel to the axis of the straight rulers. By adjusting the distance between the arc-shaped ruler and the inner wall of the wind turbine tower so that the arc-shaped ruler and the wind turbine tower are coaxial, the light emitted by the two laser heads converges at the centerline of the wind turbine tower.

[0007] By adopting the above technical solution, a wind turbine tower marking and positioning device is improved. The marking and positioning device includes an arc-shaped ruler and a straight ruler mounted on the arc-shaped ruler with two sliding seats. A laser head that can ray towards the centerline of the wind turbine tower is installed on both sliding seats. In use, by adjusting the length of the straight ruler between the arc-shaped ruler and the inner wall of the wind turbine tower and the position of the straight ruler on the arc-shaped ruler, the diameter and circumferential dimensions of the inner wall of the wind turbine tower can be quickly measured, and marking and positioning on the inner wall of the wind turbine tower can be quickly achieved.

[0008] A further feature of the present invention is that a push screw for the ruler is spirally arranged in the radial screw hole on the arc-shaped ruler. The push end of the push screw is connected to the bracket by a flexible coupling. The two sides of the outer end of the bracket are respectively hinged to the swing arms. The two swing arms are respectively hinged to the two rulers. The swing arms are composed of two short rods that slide axially and a positioning locking screw for limiting the two short rods.

[0009] By adopting the above technical solution, the distance between the two rulers and the inner wall of the wind turbine tower can be adjusted by rotating the push screw, which has the advantage of quick adjustment.

[0010] A further feature of the present invention is that a swing rod is hinged to each side of the bracket, and the swing rod is inserted into the oblique channel of the corresponding swing arm. The swing rod, the swing arm and the ruler are located on the same plane.

[0011] By adopting the above technical solution, swing rods corresponding to the swing arms are set on both sides of the bracket. The combined use of the swing arms and swing rods can effectively ensure the torsional resistance of the bracket and the swing arms and improve their service life.

[0012] A further feature of the present invention is that the swing arm has an axial slotted hole, and a positioning pin for the slotted hole is inserted into the oblique channel of the swing arm, wherein the positioning pin and the slotted hole are in a sliding fit relationship.

[0013] By adopting the above technical solution, and using the cooperation of the strip hole and the positioning pin, the swing rod and the swing arm are limited, which can effectively prevent the swing rod and the swing arm from separating, further ensure the torsional resistance and improve the service life.

[0014] A further configuration of the present invention is that the rotating gripping part of the push screw is located on the convex side of the arc-shaped ruler, and the pushing end of the push screw is located on the concave side of the arc-shaped ruler.

[0015] By adopting the above technical solution, the rotating gripping part of the push screw is set on the side of the arc-shaped ruler that bulges outward. This makes it easier for the operator to pay attention to the alignment of the laser beam with the center line of the wind turbine tower when adjusting the length of the ruler, which can effectively improve the convenience of operation.

[0016] A further feature of the present invention is that a fixed seat is provided on the lower side of the middle part of the arc-shaped ruler, and a radial screw hole is provided on the fixed seat for the push screw. The ruler is slidably placed in the radial slide of the sliding seat, and the radial slide and the radial screw hole on the fixed seat are located on the same plane.

[0017] By adopting the above technical solution, the push screw and the ruler are set on the same plane, which facilitates the arrangement of accessories such as brackets, swing rods and swing arms.

[0018] A further feature of the present invention is that the sliding seat is positioned on the arc-shaped ruler by a locking screw, and the ruler is positioned on the sliding seat by a separate locking screw.

[0019] By adopting the above technical solution, the relative locking and positioning relationship between the arc-shaped ruler, the sliding seat, and the straight ruler is defined.

[0020] A further feature of the present invention is that a level is provided on the arc-shaped ruler, and the level contains a bubble level.

[0021] By adopting the above technical solution, a level is installed on the arc-shaped ruler, which improves the convenience for workers to adjust the horizontal position of the marking and positioning device.

[0022] A further feature of the present invention is that the end of the ruler is a smooth arc-shaped support plate.

[0023] A further feature of the present invention is that the support plate and the arc-shaped ruler are perpendicular to each other.

[0024] By adopting the above technical solution, a support plate with an original arc shape is set at the outer end of the ruler, which not only avoids scratching the inner wall of the wind turbine tower at the outer end of the ruler, but also improves the convenience of positioning and marking.

[0025] The main beneficial effects of this invention are:

[0026] 1. The marking and positioning device of the present invention includes an arc-shaped ruler and a straight ruler mounted on the arc-shaped ruler with two sliding seats. A laser head that can be directed toward the centerline of the wind turbine tower is mounted on each of the two sliding seats. In use, by adjusting the length of the straight ruler between the arc-shaped ruler and the inner wall of the wind turbine tower and the position of the straight ruler on the arc-shaped ruler, the diameter and circumferential dimensions of the inner wall of the wind turbine tower can be quickly measured, and marking and positioning on the inner wall of the wind turbine tower can be quickly achieved.

[0027] 2. The marking and positioning device of the present invention can adjust the distance between the two rulers on the arc-shaped ruler and the inner wall of the wind turbine tower by rotating the push screw, which has the advantage of quick adjustment.

[0028] 3. The marking and positioning device of the present invention has swing rods corresponding to the swing arms on both sides of the bracket. The combined use of the swing arms and swing rods can effectively ensure the torsional resistance of the bracket and the swing arms and improve the service life.

[0029] 4. The marking and positioning device of the present invention uses the cooperation of a strip hole and a positioning pin to limit the movement of the swing rod and the swing arm, which can effectively prevent the swing rod and the swing arm from separating, further ensuring the torsional resistance and improving the service life.

[0030] 5. The marking and positioning device of the present invention places the rotating gripping part of the push screw on the side of the arc-shaped ruler that is convex, which makes it easier for the operator to pay attention to the alignment of the laser beam with the center line of the wind turbine tower when adjusting the length of the ruler, thus effectively improving the convenience of operation.

[0031] 6. The marking and positioning device of the present invention has a support plate with an original arc shape at the outer end of the ruler, which not only avoids scratching the inner wall of the wind turbine tower at the outer end of the ruler, but also improves the convenience of marking and positioning. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the present invention after being combined with a wind turbine tower.

[0035] In the diagram, O is the centerline; 1 is the wind turbine tower; 2 is the arc-shaped ruler; 3 is the straight ruler; 4 is the sliding seat; 5 is the laser head; 6 is the push screw; 61 is the rotating grip; 7 is the flexible coupling; 8 is the bracket; 9 is the swing arm; 91 is the first short rod; 92 is the second short rod; 10 is the swing rod; 11 is the strip hole; 12 is the positioning pin; 13 is the level; 14 is the fixed seat; and 15 is the support plate. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Example 1:

[0038] like Figures 1 to 2 As shown, a wind turbine tower marking and positioning device includes an arc-shaped ruler 2 and two straight rulers 3 located in the radial direction of the arc-shaped ruler 2. The two straight rulers 3 are slidably mounted on the arc-shaped ruler 2 via sliding seats 4. The arc-shaped ruler 2 is provided with a scale for marking the included angle between the two straight rulers, and the straight rulers 3 are provided with a scale for marking the distance between the arc-shaped ruler 2 and the inner wall of the wind turbine tower 1. Each of the two sliding seats 4 is provided with a laser head 5. The laser emitted by the two laser heads 5 is parallel to the axis of the straight rulers 3. By adjusting the distance between the arc-shaped ruler 2 and the inner wall of the wind turbine tower 1 and the straight rulers 3, when the arc-shaped ruler 2 and the wind turbine tower 1 are coaxial, the light emitted by the two laser heads 5 converges at the centerline O of the wind turbine tower 1.

[0039] A radial screw hole on the arc-shaped ruler 2 is helically fitted with a push screw 6 for a ruler 3. The push end of the push screw 6 is connected to a bracket 8 via a flexible coupling 7. Two swing arms 9 are hinged to the outer ends of the bracket 8, and each swing arm 9 is hinged to one of the two rulers 3. Each swing arm 9 consists of two axially sliding short rods (the first short rod 91 and the second short rod 92) and a positioning locking screw for limiting the movement of the two short rods. A swing rod 10 is hinged to each side of the bracket 8, and each swing rod 10 is inserted into the oblique channel of the corresponding swing arm 9. The swing rod 10, the swing arm 9, and the ruler 3 are on the same plane. An axial slotted hole 11 is provided on the swing rod 10, and a positioning pin 12 corresponding to the slotted hole 11 is inserted into the oblique channel of the swing arm 9. The positioning pin 12 and the slotted hole 11 are in a sliding fit relationship. The rotating gripping part 61 of the push screw 6 is located on the convex side of the arc-shaped ruler 2, and the pushing end of the push screw 6 is located on the concave side of the arc-shaped ruler 2. A fixing seat 14 is provided on the lower side of the middle of the arc-shaped ruler 2. The fixing seat 14 is provided with a radial screw hole for the push screw 6. The ruler 3 is slidably placed in the radial slide of the sliding seat 4. The radial slide and the radial screw hole on the fixing seat 14 are located on the same plane. The positioning of the sliding seat 4 on the arc-shaped ruler 2 is locked by a locking screw, and the positioning of the ruler 3 on the sliding seat 4 is locked by a separate locking screw.

[0040] A level 13 is installed on the arc-shaped ruler 2, and a bubble level is installed inside the level 13.

[0041] The end of the ruler 3 is a smooth arc-shaped support plate 15, which is perpendicular to the arc-shaped ruler 3.

[0042] Operating principle:

[0043] Initially, the length of the swing arm 9 is locked by the locking screw and cannot be automatically extended or retracted. Rotate the rotating grip part 61 of the push screw 6 to adjust the distance between the two rulers 3 and the inner wall of the arc-shaped ruler 2 and the wind turbine tower 1. When the laser emitted by the laser head 5 on the sliding seat 4 corresponding to the two rulers 3 converges at the center line O of the wind turbine tower, the arc-shaped ruler 2 and the wind turbine tower 1 are coaxial. Add the radius value fixed by the arc-shaped ruler 2 to the distance value between the arc-shaped ruler 2 and the inner wall of the wind turbine tower 1 directly displayed by the ruler 3 to obtain the radius of the wind turbine tower at this point.

[0044] Lock and secure the two rulers 3 to the corresponding sliding seats 4.

[0045] Loosen the locking screw on one of the swing arms 9 to make the swing arm 9 extendable. Move the sliding seat 4 corresponding to the extendable swing arm 9 to adjust the included angle of the two rulers 3 to the required position (by calculating the radius of the wind turbine tower and the required dimensions on the inner wall of the wind turbine tower, the included angle between the two rulers 3 can be calculated). This will enable the positioning and marking of specific dimensions on the inner wall of the wind turbine tower 1.

Claims

1. A wind turbine tower marking and positioning device, comprising an arc-shaped ruler (2) and two straight rulers (3) located in the radial direction of the arc-shaped ruler (2), wherein the two straight rulers (3) are slidably mounted on the arc-shaped ruler (2) via a sliding seat (4), wherein the arc-shaped ruler (2) is provided with a scale for marking the included angle between the two straight rulers, and the straight rulers (3) are provided with a scale for marking the distance between the arc-shaped ruler (2) and the inner wall of the wind turbine tower (1), characterized in that: Both sliding seats (4) are equipped with laser heads (5). The lasers emitted by the two laser heads (5) are parallel to the axis of the ruler (3). Adjust the distance between the arc-shaped ruler (2) and the inner wall of the wind turbine tower (1) and the ruler (3) so that the arc-shaped ruler (2) and the wind turbine tower (1) are coaxial. The light emitted by the two laser heads (5) converges at the center line (O) of the wind turbine tower (1). The radial screw hole on the arc-shaped ruler (2) is spirally provided with a push screw (6) for the ruler (3). The push end of the push screw (6) is connected to the bracket (8) by a flexible coupling. The two sides of the outer end of the bracket (8) are respectively hinged to the swing arms (9). The two swing arms (9) are respectively hinged to the two rulers (3). The swing arms (9) are composed of two short rods that slide axially and a positioning locking screw for limiting the two short rods. A swing rod (10) is hinged to each side of the bracket (8). The swing rod (10) is inserted into the oblique channel of the corresponding swing arm (9). The swing rod (10), the swing arm (9) and the ruler (3) are located on the same plane. The swing rod (10) is provided with an axial strip hole (11), and a positioning pin (12) for the strip hole (11) is inserted into the oblique channel of the swing arm (9). The positioning pin (12) and the strip hole (11) are in a sliding fit relationship. A fixed seat (14) is provided on the lower side of the middle part of the arc-shaped ruler (2). A radial screw hole for the push screw (6) is provided on the fixed seat (14). The ruler (3) is slidably placed in the radial slide of the sliding seat (4). The radial slide and the radial screw hole on the fixed seat (14) are located on the same plane. The sliding seat (4) is positioned on the arc-shaped ruler (2) by locking screws; Initially, the length of the swing arm (9) is locked by the locking screw and cannot be automatically extended or retracted. Rotate the push screw (6) to adjust the distance between the two rulers (3) and the inner wall of the arc ruler (2) and the wind turbine tower (1). When the laser emitted by the laser head (5) on the sliding seat (4) corresponding to the two rulers (3) converges at the center line (O) of the wind turbine tower (1), the arc ruler (2) and the wind turbine tower (1) are coaxial. Add the fixed radius value of the arc ruler (2) to the distance value between the arc ruler (2) and the inner wall of the wind turbine tower (1) directly displayed by the ruler (3) to obtain the radius of the wind turbine tower (1) at this point. Lock and fix the two rulers (3) to the corresponding sliding seats (4); Loosen the locking screw on one of the swing arms (9) so that the swing arm (9) is in a telescopic state. Move the sliding seat (4) corresponding to the telescopic swing arm (9) and adjust the included angle of the two rulers (3) to the required position. This will enable the positioning and marking of specific dimensions on the inner wall of the wind turbine tower (1).

2. The wind turbine tower marking and positioning device according to claim 1, characterized in that: The rotating gripping part (61) of the push screw (6) is located on the convex side of the arc-shaped ruler (2), and the pushing end of the push screw (6) is located on the concave side of the arc-shaped ruler (2).

3. The wind turbine tower marking and positioning device according to claim 1, characterized in that: A level (13) is provided on the arc-shaped ruler (2), and the level (13) contains a bubble level.

4. The wind turbine tower marking and positioning device according to claim 1, characterized in that: The end of the ruler (3) is a smooth arc-shaped support plate (15).

5. A wind turbine tower marking and positioning device according to claim 4, characterized in that: The support plate (15) and the arc-shaped ruler (2) are perpendicular to each other.

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