An installation device and method for pre-embedded sleeves in wind turbine foundations

Abstract

This invention provides an installation device and method for pre-embedded sleeves in wind turbine foundations. The installation device includes: a steel template with through holes, and multiple first guide members fixedly arranged circumferentially along the through holes, the through holes being configured for the pre-embedded sleeve to pass through; multiple adjusting rods, each adjusting rod passing radially through a corresponding first guide member, with one end abutting against the side wall of the pre-embedded sleeve; and an auxiliary mechanism detachably mounted on the steel template, the auxiliary mechanism including a detection unit and a driving unit; wherein the detection unit is used to obtain the position of the auxiliary mechanism relative to the center of the wind turbine foundation, and the actual center position of the pre-embedded sleeve; the driving unit is connected to the other end of the multiple adjusting rods, and drives the adjusting rods to move radially according to the information obtained by the detection unit; after adjustment, the auxiliary mechanism is separated from the steel template. This application can improve the adjustment accuracy of the pre-embedded sleeve.

Description

Technical Field

[0001] This application relates to the field of wind power foundations, and more specifically, to an installation device and method for pre-embedded sleeves in wind power foundations. Background Technology

[0002] The wind turbine foundation is a large-diameter circular concrete structure. During construction, a large number of sleeves need to be pre-embedded, with a length of approximately 2.1-2.5m and a bottom angle of 88.7°. These sleeves are used for the subsequent installation and tensioning of the steel strands. The installation accuracy of the pre-embedded sleeves directly affects the stress state of the steel strands and the stability of the wind turbine operation. The design requires that both radial and circumferential deviations be controlled within 3mm.

[0003] Currently, the fixing of embedded sleeves mostly adopts traditional methods such as wire binding, nail fixing, or simple welding. These methods are simple to operate, but lack a reliable rigid support structure and are difficult to withstand the impact force and vibration load during the pouring of large volumes of concrete. In actual construction, the sleeves are prone to displacement under the impact and vibration of concrete, with deviations generally reaching 5mm to 10mm, far exceeding the design allowable range.

[0004] Excessive deviation in the installation of the sleeve can lead to difficulties in the subsequent installation of the steel strands, or even cause the steel strands to be tightly adhered to the sleeve wall, affecting the tensioning effect and prestress distribution. In severe cases, secondary drilling is required, which not only increases construction costs but may also damage the integrity of the foundation structure and bring about safety hazards such as leakage. Summary of the Invention

[0005] This application provides an installation device and method for pre-embedded sleeves in wind power foundations, which can improve the installation accuracy of pre-embedded sleeves.

[0006] Specifically, this application is implemented through the following technical solution: One aspect of this application provides an installation device for pre-embedded sleeves for wind turbine foundations, wherein the pre-embedded sleeves are installed with the center of the wind turbine foundation as the center, comprising: A steel formwork, wherein a through hole is provided on the steel formwork and a plurality of first guide members are fixedly provided on the steel formwork along the circumference of the through hole, and the through hole is configured to allow the pre-embedded sleeve to pass through; Multiple adjusting rods, each of which passes radially through the corresponding first guide member and has one end abutting against the side wall of the pre-embedded sleeve; An auxiliary mechanism is detachably mounted on the steel template, and the auxiliary mechanism includes a detection unit and a drive unit; The detection unit is used to obtain the position of the auxiliary mechanism relative to the center of the wind power foundation, and the actual center position of the pre-embedded sleeve; The driving unit is connected to the other end of the plurality of adjusting rods, and drives the adjusting rods to move radially according to the position information and actual center information obtained by the detection unit, so as to adjust the pre-embedded sleeve to the predetermined design position and then fix the adjusting rods to the first guide member; After adjustment, the auxiliary mechanism is separated from the steel template.

[0007] Optionally, the installation device further includes a second guide member, which is configured to be fixed to the outer wall of the pre-embedded sleeve, and the second guide member and the first guide member are arranged opposite to each other. The first guide member and the second guide member, which are positioned opposite each other, constitute a set of guide components. The mounting device includes at least four sets of the guide components, and the four sets of the guide components are arranged in a cross shape along the circumference of the through hole.

[0008] Optionally, the auxiliary mechanism includes a housing and a support frame, the support frame being used to support the housing on the steel template; The detection unit includes a first detection component and a second detection component. The first detection component is located below the housing and faces the through hole, and is used to detect the actual center position of the pre-embedded sleeve. The second detection component is located above the housing and is used to detect the position of the auxiliary mechanism relative to the center of the wind power foundation. The drive unit includes multiple adjusting arms that extend downward from the lower side of the housing and are slidably connected to the housing in a radial direction. The bottom end of each adjusting arm is provided with a rotating groove, and the end of an adjusting rod is engaged in the rotating groove. The adjusting rod is threadedly connected to the first guide member. The rotating groove is configured to be controllably rotatable to drive the adjusting rod to move radially relative to the first guide member.

[0009] Optionally, the housing is provided with a radial groove, and the sliding end of the adjusting arm is slidably installed in the groove; A compression elastic element is provided between the side of the sliding end facing away from the through hole and the corresponding inner wall of the sliding groove. The compression elastic element always applies a radial force close to the through hole to the adjusting arm.

[0010] Optionally, the first detection component includes a circular guide rail disposed below the housing and a laser displacement sensor that can slide along the circular guide rail; the laser displacement sensor rotates and scans around the central axis of the through hole to obtain the opening scan data of the pre-embedded sleeve, and fits the actual center position of the pre-embedded sleeve based on the scan data. The second detection component includes a position signal column disposed above the housing, used to receive a reference signal from the center of the wind power foundation, and to calculate the radial distance and circumferential angle of the auxiliary mechanism relative to the center of the wind power foundation based on the reference signal.

[0011] Optionally, the bottom end of the adjusting arm is provided with a first stepper motor, the output end of which is connected to the rotating groove for driving the rotating groove to rotate, thereby driving the adjusting rod to rotate. The housing is also provided with a second stepper motor and a transmission disk. The output end of the second stepper motor is connected to the center of the transmission disk. The laser displacement sensor is radially mounted on the side wall of the transmission disk. The second stepper motor drives the transmission disk to rotate, thereby causing the laser displacement sensor to slide along the circular guide rail.

[0012] Another aspect of this application provides a method for installing pre-embedded sleeves, using the installation device for pre-embedded sleeves of wind power foundations as described in any of the preceding claims, comprising: S1. Fix the steel template to the wind power foundation template, and pass the pre-embedded sleeve through the through hole of the steel template; S2. Install the auxiliary mechanism on the steel template, and obtain the position information of the auxiliary mechanism relative to the center of the wind power foundation and the actual center position of the pre-embedded sleeve through the detection unit. S3. Calculate the amount of displacement that the embedded sleeve needs to be adjusted based on the actual center position of the embedded sleeve and the predetermined design position. S4. Calculate the required rotation angle of each of the multiple adjusting rods based on the displacement and the pitch of the adjusting rod. S5. Drive the adjusting rod to rotate by the corresponding angle through the driving unit, so that the pre-embedded sleeve moves to the predetermined design position, and fix the adjusting rod to the first guide member; S6. After adjustment, separate the auxiliary mechanism from the steel template.

[0013] Optionally, the first detection component includes a circular guide rail disposed below the housing and a laser displacement sensor that can slide along the circular guide rail; the second detection component includes a position signal column disposed above the housing for receiving a reference signal from the center of the wind turbine foundation. Step S3 includes: Based on the fixed position of the position signal column on the housing and the positional relationship between the actual center of the pre-embedded sleeve and the position signal column measured by the laser displacement sensor, the actual radial distance and actual circumferential angle of the actual center of the pre-embedded sleeve relative to the center of the wind power foundation are calculated. The actual radial distance and actual circumferential angle are compared with the radial distance and circumferential angle of the predetermined design position to obtain the displacement that the pre-embedded sleeve needs to be adjusted.

[0014] Optionally, the installation device further includes a second guide member, which is configured to be fixed to the outer wall of the pre-embedded sleeve, and the second guide member and the first guide member are arranged opposite each other; wherein the first guide member and the second guide member arranged opposite each other constitute a set of guide components, the installation device includes at least four sets of guide components, and the four sets of guide components are arranged in a cross shape along the circumference of the through hole, respectively corresponding to the positive X-axis direction, the negative X-axis direction, the positive Y-axis direction and the negative Y-axis direction, and the adjusting rod is threadedly connected to both the first guide member and the second guide member; Step S4 includes: Calculate the linear distance each adjusting rod needs to move in the positive X-axis, negative X-axis, positive Y-axis, and negative Y-axis directions based on the displacement. The moving distance d1 is for the adjusting rod in the positive X-axis direction, d2 is for the adjusting rod in the negative X-axis direction, d3 is for the adjusting rod in the positive Y-axis direction, and d4 is for the adjusting rod in the negative Y-axis direction. Calculate the angle each adjusting rod needs to rotate based on its pitch P: θ1 = (d1 / P) × 360°, θ2 = (d2 / P) × 360°, θ3 = (d3 / P) × 360°, θ4 = (d4 / P) × 360°.

[0015] This application provides an installation device and method for pre-embedded sleeves in wind turbine foundations. Multiple adjusting rods cooperate with a first guide member to precisely adjust the position of the pre-embedded sleeve. After adjustment, the adjusting rods and the first guide member are fixed, so that the steel template and the adjusting rods together form a fixed support structure around the circumference of the pre-embedded sleeve opening, ensuring that the final installation position of the pre-embedded sleeve is consistent with the predetermined design position. Simultaneously, multiple adjusting rods are arranged circumferentially along the through hole; this multi-point linkage and pushing can apply force more evenly, ensuring the pre-embedded sleeve is under balanced stress.

[0016] In addition, the auxiliary mechanism is divided into a detection unit and a drive unit. The detection unit accurately obtains the position of the auxiliary mechanism relative to the center of the wind power foundation and the actual center position of the pre-embedded sleeve, providing accurate data support for the adjustment operation. The displacement is calculated, and then the drive unit drives multiple adjustment rods to move radially according to the detected position information, so as to achieve precise adjustment of the position of the pre-embedded sleeve. This combination of automated detection and drive effectively avoids the errors caused by human observation and manual adjustment during manual adjustment, and greatly improves the installation accuracy of the pre-embedded sleeve. Attached Figure Description

[0017] Figure 1This is a schematic diagram of a steel formwork shown in an exemplary embodiment of this application; Figure 2 This is a top view of a steel formwork shown in an exemplary embodiment of this application; Figure 3 This is a side view of a steel formwork shown in an exemplary embodiment of this application; Figure 4 This is a schematic diagram of an auxiliary mechanism shown in an exemplary embodiment of this application; Figure 5 This is a bottom schematic diagram of the auxiliary mechanism shown in an exemplary embodiment of this application; Figure 6 This is a bottom view of the auxiliary mechanism shown in an exemplary embodiment of this application; Figure 7 This is a side view of the auxiliary mechanism shown in an exemplary embodiment of this application; Figure 8 This is a top view of the auxiliary mechanism shown in an exemplary embodiment of this application; Figure 9 This is a flowchart illustrating an exemplary embodiment of the present application of a method for installing a pre-embedded sleeve.

[0018] Wherein: A, pre-embedded sleeve; 100, steel template; 101, through hole; 110, first guide component; 120, second guide component; 200, adjusting rod; 300, auxiliary mechanism; 311, first detection component; 312, second detection component; 320, adjusting arm; 321, rotating groove; 330, housing; 331, gripping part; 340, support frame; 350, sliding groove; 360, circular guide rail; 361, laser displacement sensor; 370, position signal column. Detailed Implementation

[0019] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0020] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0021] refer to Figure 1 and Figure 4 This application provides an installation device for a pre-embedded sleeve A for a wind turbine foundation, which installs the pre-embedded sleeve A with the center of the wind turbine foundation as the center. The device includes: a steel template 100, multiple adjusting rods 200, and an auxiliary mechanism 300. Combined with... Figure 2 and Figure 3 A steel formwork 100 has a through hole 101, and multiple first guide members 110 are fixedly arranged circumferentially along the through hole 101 on the steel formwork 100. The through hole 101 is configured to allow the pre-embedded sleeve A to pass through. Multiple adjusting rods 200 pass radially through the corresponding first guide member 110, and one end abuts against the side wall of the pre-embedded sleeve A. An auxiliary mechanism 300 is detachably installed on the steel formwork 100. The auxiliary mechanism 300 includes a detection unit and a drive unit. The detection unit is used to obtain the position of the auxiliary mechanism 300 relative to the center of the wind power foundation and the actual center position of the pre-embedded sleeve A. The drive unit is connected to the other end of the multiple adjusting rods 200 and drives the adjusting rods 200 to move radially according to the position information and actual center information obtained by the detection unit, so as to adjust the pre-embedded sleeve A to the predetermined design position and then fix the adjusting rods 200 to the first guide member 110. After the adjustment is completed, the auxiliary mechanism 300 is separated from the steel formwork 100.

[0022] The driving unit can push the adjusting rod 200 to move radially, thereby pushing against the side wall of the pre-embedded sleeve A. Here, there are multiple steel templates 100 corresponding to the number of pre-embedded sleeves A. The auxiliary mechanism 300 is detachably connected to each steel template 100 and the matching adjusting rod 200. After the auxiliary mechanism completes the adjustment of a batch of pre-embedded sleeves A, it can be disassembled and reused for the next batch.

[0023] Multiple adjusting rods 200 cooperate with the first guide member 110 to precisely adjust the position of the embedded sleeve A. After adjustment, the adjusting rods 200 and the first guide member 110 are fixed, so that the steel template 100 and the adjusting rods 200 together form a fixed support structure for the circumferential direction of the opening of the embedded sleeve A. During concrete pouring and vibration, this structure can effectively limit the movement space of the embedded sleeve A, reduce the impact of construction operations such as vibration on the position of the embedded sleeve A, avoid displacement of the embedded sleeve A due to construction disturbance after adjustment, prevent the adjustment effect from failing, and ensure that the final installation position of the embedded sleeve A is consistent with the predetermined design position.

[0024] Meanwhile, multiple adjusting rods 200 are arranged circumferentially along the through hole 101 and abut against the side wall of the pre-embedded sleeve A in a linkage pushing manner. Compared with a single adjusting structure, this multi-point linkage pushing can apply force more evenly, ensuring that the pre-embedded sleeve A is under force balance, making the adjustment process more stable and the adjustment result more reliable.

[0025] Furthermore, the auxiliary mechanism 300 is divided into a detection unit and a drive unit. The detection unit accurately acquires the position of the auxiliary mechanism 300 relative to the center of the wind turbine foundation and the actual center position of the pre-embedded sleeve A, providing precise data support for the adjustment operation. The calculated displacement is then used by the drive unit to drive the radial movement of multiple adjusting rods 200 based on the detected position information, achieving precise adjustment of the position of the pre-embedded sleeve A. This automated detection and drive system effectively avoids errors caused by human observation and manual adjustment, significantly improving the installation accuracy of the pre-embedded sleeve A and ensuring that the installation quality meets the construction requirements of the wind turbine foundation. Specifically, the detection unit transmits data to the control system, which calculates the displacement and rotation angle and controls the drive unit accordingly.

[0026] refer to Figure 1 and Figure 2 In one embodiment, the installation device further includes a second guide 120, which is configured to be fixed to the outer wall of the pre-embedded sleeve A, and the second guide 120 and the first guide 110 are arranged opposite each other; wherein the first guide 110 and the second guide 120 arranged opposite each other constitute a set of guide components, and the installation device includes at least four sets of guide components, and the four sets of guide components are arranged in a cross shape along the circumference of the through hole 101.

[0027] In this embodiment, the second guide member 120 added to the installation device is directly opposite to the first guide member 110. This two-point positioning ensures that the movement of the adjusting rod 200 remains linear, preventing deviation or skew during radial movement. This makes the movement trajectory of the adjusting rod 200 easier to control, ensuring that it accurately acts on the pre-embedded sleeve A and achieves precise positional calibration. Simultaneously, the second guide member 120 is fixed to the outer wall of the pre-embedded sleeve A, providing stable guidance and accommodating space for the adjusting rod 200. This effectively prevents the adjusting rod 200 from slipping off the outer wall of the pre-embedded sleeve A during the pushing process, ensuring the continuity and reliability of the adjustment process. In addition, at least four sets of guide components are arranged in a cross shape along the circumference of the through hole 101. This cross combination structure can construct a simple cross coordinate system, which can decompose the displacement of the pre-embedded sleeve A in any direction onto the coordinate axes of the cross coordinate system without the need for complex orientation conversion. This simplifies the displacement calculation process, reduces the calculation difficulty, and facilitates the drive unit to accurately control the movement of the adjustment rod 200 in the corresponding direction, making the adjustment operation more convenient and efficient, and further improving the installation efficiency and accuracy of the pre-embedded sleeve A.

[0028] refer to Figure 4 and Figure 7In one embodiment, the auxiliary mechanism 300 includes a housing 330 and a support frame 340, the support frame 340 being used to support the housing 330 on the steel template 100; the detection unit includes a first detection component 311 and a second detection component 312, the first detection component 311 being located below the housing 330 and facing the through hole 101, used to detect the actual center position of the pre-embedded sleeve A; the second detection component 312 being located above the housing 330, used to detect the position of the auxiliary mechanism 300 relative to the center of the wind power foundation; combined with Figure 5 and Figure 6 The drive unit includes multiple adjusting arms 320. The adjusting arms 320 extend downward from the lower side of the housing 330 and are slidably connected to the housing 330 in the radial direction. The bottom end of the adjusting arm 320 is provided with a rotating groove 321. The end of the adjusting rod 200 is engaged in the rotating groove 321. The adjusting rod 200 is threadedly connected to the first guide member 110. The rotating groove 321 is configured to be controllably rotated to drive the adjusting rod 200 to move radially relative to the first guide member 110.

[0029] The housing 330 of the auxiliary mechanism 300 is stably supported on the steel template 100 by the support frame 340, providing a stable mounting carrier for the detection unit and the drive unit. The first detection component 311 detects the actual center position of the pre-embedded sleeve A, and the second detection component 312 detects the position of the auxiliary mechanism 300 relative to the center of the wind power foundation. By combining the fixed distribution position of the second detection component 312 on the housing 330, the positional correlation between the auxiliary mechanism 300, the center of the pre-embedded sleeve A, and the center of the wind power foundation can be established through the positional data detected by the two components. This allows for the accurate calculation of the deviation distance between the actual center position of the pre-embedded sleeve A and the predetermined design position.

[0030] The adjusting arm 320 of the drive unit is radially slidably connected to the housing 330. The rotating groove 321 at its bottom end is engaged with the end of the adjusting rod 200, and the adjusting rod 200 is threadedly connected to the first guide member 110. Here, the adjusting rod 200 can be a screw structure, and the first guide member 110 and the second guide member 120 can be nut structures respectively. When the rotating groove 321 is rotated in a controlled manner, it can drive the adjusting rod 200 to rotate synchronously. With the help of the threaded engagement between the adjusting rod 200 and the first guide member 110, the rotational motion is converted into the radial movement of the adjusting rod 200, so as to achieve precise adjustment of the position of the pre-embedded sleeve A. This threaded transmission engagement structure not only has high adjustment accuracy, but also achieves self-locking of the adjusting rod 200. After the adjustment is in place, it can further ensure the stability of the position of the adjusting rod 200 and avoid adjustment failure due to external force disturbance. At the same time, the adjusting arm 320 can slide radially along the housing 330, which can adapt to the radial movement trajectory of the adjusting rod 200, ensuring that the adjustment process is smooth and reliable.

[0031] refer to Figure 5 and Figure 6In one embodiment, a groove 350 is provided radially on the housing 330, and the sliding end of the adjusting arm 320 is slidably installed in the groove 350; a compression elastic element is provided between the side of the sliding end facing away from the through hole 101 and the corresponding inner wall of the groove 350, and the compression elastic element always applies a radial force close to the through hole 101 to the adjusting arm 320.

[0032] The radially arranged groove 350 on the housing 330 provides precise sliding guidance for the sliding end of the adjusting arm 320, ensuring that the adjusting arm 320 always moves smoothly in the radial direction, avoiding deviation when the adjusting arm 320 slides, and further ensuring the radial movement accuracy of the adjusting rod 200. The compression elastic element provided on the side of the sliding end facing away from the through hole 101 is to prevent the adjusting rod 200 from disengaging from the adjusting arm 320. The compression elastic element always applies a radial force close to the through hole 101 to the adjusting arm 320. When the adjusting arm 320 drives the adjusting rod 200 to move radially inward, the elastic element can play a compensating role in assisting the push, ensuring that the adjusting rod 200 and the side wall of the pre-embedded sleeve A always maintain stable contact. When the adjusting arm 320 drives the adjusting rod 200 to move radially outward, the elastic element will be further compressed, generating a reverse elastic force, tightly holding the adjusting arm 320, preventing the adjusting rod 200 from disengaging from the rotating groove 321 of the adjusting arm 320 due to excessive movement or external disturbance, ensuring the connection stability between the adjusting arm 320 and the adjusting rod 200, ensuring that the power of the drive unit can be stably transmitted to the adjusting rod 200, and thus ensuring the continuity and reliability of the adjustment process.

[0033] In one embodiment, the first detection component 311 includes a circular guide rail 360 disposed below the housing 330, and a laser displacement sensor 361 slidable along the circular guide rail 360. The laser displacement sensor 361 rotates and scans around the central axis of the through hole 101 to acquire the opening scan data of the pre-embedded sleeve A, and fits the actual center position of the pre-embedded sleeve A based on the scan data. The second detection component 312 includes a position signal column 370 disposed above the housing 330, used to receive a reference signal from the center of the wind power foundation, and calculate the radial distance and circumferential angle of the auxiliary mechanism 300 relative to the center of the wind power foundation based on the reference signal. Here, the scanning range of the laser displacement sensor 361 covers the inner and outer range of the opening of the pre-embedded sleeve A.

[0034] In actual construction scenarios, the pre-designed location of the embedded sleeve A is known, and the approximate installation location of the embedded sleeve A is marked in advance on site. The role of the installation device in this solution is to perform precise fine-tuning of the embedded sleeve A. First, the installation position of the position signal column 370 on the housing 330 is fixed, and its relative position to the center of the housing 330 can be pre-calibrated, which is the basis for subsequent calculations. Second, the laser displacement sensor 361 rotates and scans around a preset trajectory, and its scanning range covers both inside and outside the opening of the embedded sleeve A, which can comprehensively capture the contour data of the opening of the embedded sleeve A, thereby forming a complete circular contour. This avoids missed or incorrect measurements due to insufficient scanning range, ensuring the integrity and accuracy of the scanning data. Based on these scanning data, the actual center position of the embedded sleeve A corresponding to the circular contour can be accurately calculated using a fitting algorithm.

[0035] Simultaneously, by combining the relative positional relationship of the two detection components, the specific position of the position signal column 370 within the circular contour can be clearly determined. This allows for direct analysis of the relative position between the actual center of the pre-embedded sleeve A and the position signal column 370 within the image of the circular contour. Next, the position signal column 370 receives a reference signal from the center of the wind turbine foundation and calculates its radial distance and circumferential angle relative to the foundation center. Subsequently, based on the clearly defined relative position between the actual center and the position signal column 370, and combined with the position data of the position signal column 370 itself relative to the foundation center, the actual radial distance and circumferential angle of the actual center of the pre-embedded sleeve A relative to the foundation center are further calculated, thus obtaining the actual position data of the pre-embedded sleeve A. Finally, the calculated actual position data is compared with the radial distance and circumferential angle corresponding to the preset design position. The deviation between the two represents the displacement that the pre-embedded sleeve A needs to be adjusted, providing a clear and precise basis for subsequent fine-tuning operations.

[0036] This measurement and calculation method eliminates the need for complex manual measurements and tedious conversions. Relying entirely on automated data acquisition and precise calculation by the detection components, it significantly improves the accuracy and efficiency of displacement calculation. On one hand, the laser displacement sensor 361 covers the scanning range inside and outside the opening, and combined with a rotating scanning method, ensures the accuracy of detecting the actual center position of the pre-embedded sleeve A. On the other hand, using the fixed installation reference of the position signal column 370, multiple sets of detected position data are linked and calculated, completing the deviation calculation between the actual and designed positions without manual intervention. This avoids human errors caused by manual measurement and conversion, reduces the workload for operators, and improves construction efficiency.

[0037] In one embodiment, the bottom end of the adjusting arm 320 is provided with a first stepper motor, the output end of which is connected to the rotating groove 321 for driving the rotating groove 321 to rotate, thereby driving the adjusting rod 200 to rotate; the housing 330 is also provided with a second stepper motor and a transmission disk, the output end of which is connected to the center of the transmission disk for transmission, and the laser displacement sensor 361 is radially mounted on the side wall of the transmission disk; the second stepper motor drives the transmission disk to rotate, thereby driving the laser displacement sensor 361 to slide along the circular guide rail 360.

[0038] In this embodiment, the core advantage of the stepper motor is its ability to achieve precise small-angle rotation and accurately respond to control commands. The first stepper motor is connected to the rotating slot 321, driving the rotating slot 321 to rotate and synchronously rotating the adjusting rod 200. Combined with the threaded connection between the adjusting rod 200 and the first guide member 110, the small-angle rotation of the stepper motor is converted into a small radial displacement of the adjusting rod 200, thereby precisely fine-tuning the position of the pre-embedded sleeve A and adapting to the fine-tuning requirements of the pre-embedded sleeve A, ensuring a final deviation of ≤3mm. The second stepper motor works in conjunction with the transmission disk, and its output drives the transmission disk to rotate. Since the laser displacement sensor 361 is radially mounted on the side wall of the transmission disk, the transmission disk can transmit the rotation of the stepper motor to the laser displacement sensor 361. The transmission disk can amplify the rotation stroke, driving the laser displacement sensor 361 to complete a large-range rotational scan along the circular guide rail 360, ensuring that the scanning range covers the opening of the pre-embedded sleeve A, and providing complete data for fitting the actual center position.

[0039] refer to Figure 4 and Figure 8 The top of the shell 330 is also equipped with a grip 331 for easy lifting and movement by workers. It should be noted that the steel formwork 100 and the adjusting rod 200, which uses a screw structure, are always supported circumferentially by the pre-embedded sleeve A during concrete pouring and hardening. Once the concrete pouring is complete and the strength reaches the design requirements (usually above 75% of the design strength), the steel formwork 100 and the screw are removed according to specifications. The screw is loosened by tightening one end. After removal, all components are cleaned to remove residual concrete slurry or dust. The screw threads and nuts are checked for integrity. After confirming there is no damage or deformation, the formwork is stored for future reuse. The steel formwork 100 is made of 8mm thick high-strength steel plate, cut and formed in one piece. It can be a fan-shaped structure that precisely matches the circular outline of the wind turbine foundation, ensuring a tight fit and uniform stress between the steel formwork 100 and the wind turbine foundation formwork. A circular through hole 101 is opened at the center of the steel formwork 100. The hole diameter is 20-30mm larger than the outer diameter of the pre-embedded sleeve A. This provides sufficient adjustment space for sleeve installation while avoiding inaccurate positioning due to excessive gaps. The screw rod can be composed of galvanized screw rods with a diameter of 12mm. The screw rod specifications are precisely matched with the reserved nut, with high thread precision, wear resistance, and corrosion resistance, making it suitable for the harsh environment of outdoor wind power construction.

[0040] refer to Figure 9 This application also provides a method for installing a pre-embedded sleeve A, wherein the installation device for the pre-embedded sleeve A of a wind power foundation as described in any of the above claims includes: S1. Fix the steel formwork 100 onto the wind power foundation formwork, and pass the pre-embedded sleeve A through the through hole 101 of the steel formwork 100; S2. Install the auxiliary mechanism 300 on the steel formwork 100, and obtain the position information of the auxiliary mechanism 300 relative to the center of the wind power foundation, as well as the actual center position of the pre-embedded sleeve A through the detection unit. S3. Calculate the amount of displacement that needs to be adjusted for the pre-embedded sleeve A based on the actual center position of the pre-embedded sleeve A and the predetermined design position. S4. Based on the displacement and the pitch of the adjusting rod 200, calculate the angle that each adjusting rod 200 needs to rotate. S5. Drive the adjusting rod 200 to rotate by the corresponding angle through the driving unit, so that the pre-embedded sleeve A moves to the predetermined design position, and fix the adjusting rod 200 to the first guide member 110; S6. After adjustment, separate the auxiliary mechanism 300 from the steel template 100.

[0041] The installation method proceeds step by step according to the process from S1 to S6, from fixing the steel template 100 and installing the pre-embedded sleeve A, to installing the auxiliary mechanism 300, position detection, displacement calculation, and precise adjustment, and then separating the auxiliary mechanism 300, forming a complete installation closed loop. The core detection and adjustment actions are completed entirely by relying on the detection unit and drive unit of the device, without the need for manual position measurement, calculation, and manual adjustment.

[0042] In one embodiment, the first detection component 311 includes a circular guide rail 360 disposed below the housing 330 and a laser displacement sensor 361 that can slide along the circular guide rail 360; the second detection component 312 includes a position signal column 370 disposed above the housing 330 for receiving a reference signal from the center of the wind power foundation. Step S3 includes: based on the fixed position of the position signal column 370 on the housing 330 and the positional relationship between the actual center of the pre-embedded sleeve A and the position signal column 370 measured by the laser displacement sensor 361, calculating the actual radial distance and actual circumferential angle of the actual center of the pre-embedded sleeve A relative to the center of the wind power foundation; comparing the actual radial distance and actual circumferential angle with the radial distance and circumferential angle of the predetermined design position to obtain the amount of displacement that the pre-embedded sleeve A needs to be adjusted.

[0043] In this embodiment, based on the fixed relative positional relationship between the two, the actual positional deviation is directly derived from the known positional data, avoiding the errors caused by manual conversion, ensuring the accuracy of displacement calculation, and providing a reliable basis for subsequent angle calculation and precise adjustment of the adjusting rod 200.

[0044] In one embodiment, the installation device further includes a second guide 120, which is configured to be fixed to the outer wall of the pre-embedded sleeve A, and the second guide 120 and the first guide 110 are arranged opposite each other; wherein the first guide 110 and the second guide 120 arranged opposite each other constitute a set of guide components, and the installation device includes at least four sets of guide components, and the four sets of guide components are arranged in a cross shape along the circumference of the through hole 101, respectively corresponding to the positive X-axis direction, the negative X-axis direction, the positive Y-axis direction and the negative Y-axis direction, the adjusting rod 200 is threadedly connected to both the first guide 110 and the second guide 120, and here it is threadedly connected to the second guide 120, and the top of the adjusting rod 200 abuts against the side wall of the pre-embedded sleeve A.

[0045] Step S4 includes: Calculate the linear distance each adjusting rod 200 needs to move in the positive X-axis, negative X-axis, positive Y-axis, and negative Y-axis directions based on the displacement. The moving distance d1 is for the adjusting rod 200 in the positive X-axis direction, d2 is for the adjusting rod 200 in the negative X-axis direction, d3 is for the adjusting rod 200 in the positive Y-axis direction, and d4 is for the adjusting rod 200 in the negative Y-axis direction. Based on the pitch P of each adjusting rod 200, calculate the angle that each adjusting rod 200 needs to rotate: θ1=(d1 / P)×360°, θ2=(d2 / P)×360°, θ3=(d3 / P)×360°, θ4=(d4 / P)×360°.

[0046] Based on the decomposed displacements in the X and Y axes, the linear distances d1, d2, d3, and d4 that the four adjusting rods 200 need to move can be calculated respectively. Then, combined with the pitch P of each adjusting rod 200, the angle that each adjusting rod 200 needs to rotate can be accurately calculated using the formula θ=(d / P)×360°, thus realizing the precise conversion of displacement into adjustment angle.

[0047] The specific operating method for workers can be as follows: First, the worker fixes the second guide component 120 and selects four nuts of the same specification as the second guide component 120. Taking the axis of the pre-embedded sleeve A as the center, the worker marks four points in a cross distribution on the outer wall of the pre-embedded sleeve A with the help of auxiliary tools such as a tape measure and a right-angle ruler. After marking, the worker fixes the four nuts at the marked points respectively. Then, the worker fixes the first guide component 110 and selects four nuts of the same specification as the second guide component 120 as the first guide component 110. The worker temporarily passes the pre-embedded sleeve A through the through hole 101 of the steel template 100 and adjusts the position of the pre-embedded sleeve A to the approximate design position. Then, the worker uses a tape measure to measure the position of the four nuts on the outside of the pre-embedded sleeve A and marks four welding points at the corresponding positions on the steel template 100. This ensures that the four nuts on the steel template 100 are directly opposite and coaxially aligned with the four nuts on the outside of the pre-embedded sleeve A, and that the two sets of nuts together form a standard cross distribution. After calibration, the four nuts on the steel template 100 are welded and fixed one by one. During the welding process, the position is continuously checked with measuring tools to prevent welding deformation from causing the nuts to shift. In the above operation, with the help of auxiliary tools such as tape measures and right-angle rulers, the cross distribution standard of the two sets of nuts can be accurately ensured, thereby ensuring that the screw installed later, that is, the adjusting rod 200, can smoothly pass through the two sets of nuts, and the position of the screw corresponds exactly to the adjusting arms 320 of the cross distribution on the auxiliary mechanism 300, ensuring the smooth progress of subsequent testing and adjustment actions.

[0048] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An installation device for pre-embedded sleeves in wind turbine foundations, characterized in that, The pre-embedded sleeve (A) is installed with the center of the wind turbine foundation as the center, including: A steel template (100) is provided with a through hole (101), and a plurality of first guide members (110) are fixedly provided on the steel template (100) along the circumference of the through hole (101). The through hole (101) is configured to allow the pre-embedded sleeve (A) to pass through. Multiple adjusting rods (200), each of the adjusting rods (200) passes radially through the corresponding first guide (110) and has one end abutting against the side wall of the pre-embedded sleeve (A); An auxiliary mechanism (300) is detachably mounted on the steel template (100), and the auxiliary mechanism (300) includes a detection unit and a drive unit; The detection unit is used to obtain the position of the auxiliary mechanism (300) relative to the center of the wind power foundation, and the actual center position of the pre-embedded sleeve (A); The driving unit is connected to the other end of the plurality of adjusting rods (200), and drives the adjusting rods (200) to move radially according to the position information and actual center information obtained by the detection unit, so as to adjust the pre-embedded sleeve (A) to the predetermined design position and then fix the adjusting rods (200) to the first guide member (110); After adjustment, the auxiliary mechanism (300) is separated from the steel template (100).

2. The installation device for pre-embedded sleeves in wind turbine foundations as described in claim 1, characterized in that, The installation device further includes a second guide (120), which is configured to be fixed to the outer wall of the pre-embedded sleeve (A), and the second guide (120) and the first guide (110) are arranged opposite each other. The first guide member (110) and the second guide member (120) arranged opposite each other constitute a set of guide components. The mounting device includes at least four sets of the guide components, and the four sets of the guide components are arranged in a cross shape along the circumference of the through hole (101).

3. The installation device for pre-embedded sleeves in wind turbine foundations as described in claim 1, characterized in that, The auxiliary mechanism (300) includes a housing (330) and a support frame (340), the support frame (340) being used to support the housing (330) on the steel template (100); The detection unit includes a first detection component (311) and a second detection component (312). The first detection component (311) is located below the housing (330) and faces the through hole (101) to detect the actual center position of the pre-embedded sleeve (A). The second detection component (312) is located above the housing (330) to detect the position of the auxiliary mechanism (300) relative to the center of the wind power foundation. The drive unit includes multiple adjusting arms (320), which extend downward from the lower side of the housing (330) and are slidably connected to the housing (330) in the radial direction. The bottom end of the adjusting arm (320) is provided with a rotating groove (321), and the end of the adjusting rod (200) is engaged in the rotating groove (321). The adjusting rod (200) is threadedly connected to the first guide (110). The rotating groove (321) is configured to be controllably rotated to drive the adjusting rod (200) to move radially relative to the first guide (110).

4. The installation device for pre-embedded sleeves in wind turbine foundations as described in claim 3, characterized in that, The housing (330) is provided with a radial groove (350), and the sliding end of the adjusting arm (320) is slidably installed in the groove (350); A compression elastic element is provided between the side of the sliding end facing away from the through hole (101) and the corresponding inner wall of the slide groove (350). The compression elastic element always applies a radial force to the adjusting arm (320) that approaches the through hole (101).

5. The installation device for pre-embedded sleeves in wind turbine foundations as described in claim 3, characterized in that, The first detection component (311) includes a circular guide rail (360) disposed below the housing (330) and a laser displacement sensor (361) that can slide along the circular guide rail (360); the laser displacement sensor (361) rotates and scans around the central axis of the through hole (101) to obtain the opening scan data of the pre-embedded sleeve (A), and fits the actual center position of the pre-embedded sleeve (A) based on the scan data; The second detection component (312) includes a position signal column (370) disposed above the housing (330) for receiving a reference signal from the center of the wind power foundation and calculating the radial distance and circumferential angle of the auxiliary mechanism (300) relative to the center of the wind power foundation based on the reference signal.

6. The installation device for pre-embedded sleeves in wind turbine foundations as described in claim 5, characterized in that, The bottom end of the adjusting arm (320) is provided with a first step motor, and the output end of the first step motor is connected to the rotating groove (321) for driving the rotating groove (321) to rotate, thereby driving the adjusting rod (200) to rotate. The housing (330) is also provided with a second stepper motor and a transmission disk. The output end of the second stepper motor is connected to the center of the transmission disk. The laser displacement sensor (361) is radially mounted on the side wall of the transmission disk. The second stepper motor drives the transmission disk to rotate, thereby causing the laser displacement sensor (361) to slide along the circular guide rail (360).

7. A method for installing a pre-embedded sleeve, characterized in that, The installation device for pre-embedded sleeves (A) of wind power foundations according to any one of claims 1 to 6 includes: S1. Fix the steel template (100) on the wind power foundation template and pass the pre-embedded sleeve (A) through the through hole (101) of the steel template (100). S2. Install the auxiliary mechanism (300) on the steel template (100), and obtain the position information of the auxiliary mechanism (300) relative to the center of the wind power foundation and the actual center position of the pre-embedded sleeve (A) through the detection unit. S3. Calculate the amount of displacement that the pre-embedded sleeve (A) needs to be adjusted based on the actual center position of the pre-embedded sleeve (A) and the predetermined design position. S4. Based on the displacement and the pitch of the adjusting rod (200), calculate the angle that each of the adjusting rods (200) needs to rotate. S5. Drive the adjusting rod (200) to rotate by the corresponding angle through the driving unit, so that the pre-embedded sleeve (A) moves to the predetermined design position, and fix the adjusting rod (200) to the first guide member (110); S6. After adjustment, separate the auxiliary mechanism (300) from the steel template (100).

8. The method for installing pre-embedded sleeves as described in claim 7, characterized in that, The first detection component (311) includes a circular guide rail (360) disposed below the housing (330) and a laser displacement sensor (361) that can slide along the circular guide rail (360); the second detection component (312) includes a position signal column (370) disposed above the housing (330) for receiving a reference signal from the center of the wind power foundation. Step S3 includes: Based on the fixed position of the position signal column (370) on the housing (330) and the position relationship between the actual center of the pre-embedded sleeve (A) and the position signal column (370) measured by the laser displacement sensor (361), the actual radial distance and actual circumferential angle of the actual center of the pre-embedded sleeve (A) relative to the center of the wind power foundation are calculated. The actual radial distance and actual circumferential angle are compared with the radial distance and circumferential angle of the predetermined design position to obtain the displacement that the pre-embedded sleeve (A) needs to be adjusted.

9. The method for installing pre-embedded sleeves as described in claim 8, characterized in that, The installation device further includes a second guide (120), which is configured to be fixed to the outer wall of the pre-embedded sleeve (A), and the second guide (120) and the first guide (110) are arranged opposite each other; wherein the first guide (110) and the second guide (120) arranged opposite each other constitute a set of guide components, the installation device includes at least four sets of guide components, and the four sets of guide components are arranged in a cross shape along the circumference of the through hole (101), respectively corresponding to the positive X-axis direction, the negative X-axis direction, the positive Y-axis direction and the negative Y-axis direction, and the adjusting rod (200) is threadedly connected to both the first guide (110) and the second guide (120); Step S4 includes: Calculate the linear distance that each adjusting rod (200) needs to move in the positive X-axis direction, negative X-axis direction, positive Y-axis direction, and negative Y-axis direction based on the displacement. The adjustment rod (200) located in the positive X-axis direction moves by distance d1, the adjustment rod (200) located in the negative X-axis direction moves by distance d2, the adjustment rod (200) located in the positive Y-axis direction moves by distance d3, and the adjustment rod (200) located in the negative Y-axis direction moves by distance d4. Calculate the angle that each adjusting rod (200) needs to rotate based on the pitch P of each adjusting rod (200): θ1=(d1 / P)×360°, θ2=(d2 / P)×360°, θ3=(d3 / P)×360°, θ4=(d4 / P)×360°.

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