Power transmission line anchor rod positioning device and method

Abstract

The power transmission line anchor rod positioning device comprises a center anchor rod, the center anchor rod is sequentially sleeved with an upper positioning disc and a lower positioning disc from top to bottom, linkage is achieved between the upper positioning disc and the lower positioning disc through vertical electric push rods arranged at the two ends, and a plurality of telescopic supports are installed on the periphery of the upper positioning disc. When the anchor rod positioning device is used, anchor rod positioning is greatly improved, particularly, the positioning efficiency of annularly-arranged anchor rods is greatly improved, the positions of other anchor rods can be rapidly and synchronously determined as long as the position of the center anchor rod is determined and the height of the upper positioning disc is changed, and the anchor rod positioning device is suitable for arrangement of peripheral anchor rods of different numbers and can also be used for traditional square anchor rod arrangement modes such as 2 * 2 and 3 * 3. A constructor only needs to observe the scale position to complete verification, if the electric push rod assembly is selected, the constructor only needs to input the diameter of the anchor rod on the ground, the advancing distance of the vertical push rod and the advancing distance of the horizontal push rod during square arrangement are automatically calculated through a program, and other manual operation is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of anchor rod installation for overhead power transmission lines, and in particular to a transmission line anchor rod positioning device and method. Background Art

[0002] Rock anchor foundation is a common form of tower foundation in power transmission line projects. It is generally used in geological conditions with a thin overburden layer such as soil above and rock below. It consists of three parts: anchor rods, base plate and main column. The base plate is used to bear the downward pressure load transmitted from the upper tower, while the upward pull load is mainly borne by the anchor rods embedded in the rock.

[0003] When the rock layer is shallow, the base plate plus anchor rods can be used directly. Therefore, the accurate layout and positioning of the anchor rods is a key step in the construction of this type of foundation. The traditional anchor rod foundation often uses a 2×2 and 3×3 square anchor rod arrangement. During construction, after determining the center position of the tower leg, the accurate positioning of each anchor hole can be determined by laying out the lines point by point before drilling.

[0004] To improve the mechanization level of transmission line anchor foundation construction, a 1+X type transmission line assembled anchor foundation has been developed in the prior art. The anchors are arranged in a circular pattern with one anchor in the center and X anchors arranged in a circular pattern around the periphery. This method is characterized by evenly distributed anchors around the center anchor, providing a reasonable force distribution. This positioning method can better resist uplift loads, but there are still some problems during construction:

[0005] (1) During construction, the circular arrangement of anchor rods makes it difficult to position the anchor rods during layout, and the anchor rods may deviate from their positions during grouting. For the 1+X type prefabricated anchor rod foundation, the top of the anchor rod needs to pass through the reserved hole in the connecting steel plate before being bolted. Positioning deviation will prevent the anchor rods from being installed properly.

[0006] (2) For anchor rods arranged in a ring, when the diameter of the ring in which the anchor rods are located and the number X of peripheral anchor rods are different, the construction workers lack a positioning device that can be flexibly adjusted.

[0007] (3) It is not possible to use the same set of devices to simultaneously achieve the positioning of traditional 2×2 and 3×3 square anchor arrangements. Summary of the Invention

[0008] The purpose of the present invention is to improve the shortcomings of existing anchor foundation construction equipment, provide a transmission line anchor positioning device and method, and develop a positioning device that can be folded and stored, is easy to carry, has high positioning efficiency, and is suitable for 1+X type and traditional square layout transmission line anchor foundation construction, so as to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A transmission line anchor rod positioning device includes a center anchor rod, which is an anchor rod vertically inserted into the hole of the tower leg and is used to locate the center position of the tower leg. The first step of the 1+X anchor rod positioning method is to use the hole position of the center anchor rod as a basis to ensure that the positions of other positioning rods will not shift. During construction, the anchor bar diameter d of the center anchor rod is generally 20 to 36 mm, and the anchor hole diameter D corresponding to the anchor bar is generally 80 to 120 mm. The center anchor rod is sequentially provided with an upper positioning plate and a lower positioning plate from top to bottom. The upper positioning plate and the lower fixed tail plate are linked by vertical electric push rods at both ends. After the lower fixed tail plate and the center anchor rod are positioned, the upper positioning plate can be pushed up and down by remote control of the vertical electric push rod. A plurality of retractable brackets are installed on the periphery of the upper positioning plate.

[0011] The retractable bracket consists of two movable telescopic rods, one of which is set at an angle. The upper end of this telescopic rod is installed with the upper positioning plate through a screw and can be freely rotated to adjust the angle. The length of the tilted rod is about 900mm. The other telescopic rod is horizontally set at the lower end of the tilted telescopic rod and is connected by a screw. The surface of the horizontally set telescopic rod is provided with length scale lines. The other end of the horizontally set telescopic rod is provided with a thread, and the outer periphery of the lower positioning plate is correspondingly provided with a screw mouth. The other end of the horizontally set telescopic rod can be fixed in the screw mouth of the lower positioning plate through a thread. The length of the horizontally set telescopic rod is 400~800mm.

[0012] As a further solution of the present invention, a bubble tube is installed on the horizontal telescopic rod of each telescopic bracket, so that when the foundation pit is uneven, the bottom surface of the positioning bracket can be kept level by adjusting the length of the leveling support rod by a small amount.

[0013] The outer periphery of the upper positioning plate and the lower positioning plate is provided with screw holes. When the anchor rod drilling operation is carried out, the center anchor rod can be clamped by inserting the positioning screw into the screw hole to achieve the fixation between the upper positioning plate, the lower positioning plate and the center anchor rod. The outer side of the screw connection of the tilt telescopic rod and the horizontal telescopic rod is also movably installed with a limit gear plate. The interior of the limit gear plate is provided with an anchor rod limiting cylinder. The interior of the anchor rod limiting cylinder can be plugged into the peripheral anchor rods for positioning around the center anchor rod. The anchor hole spacing corresponding to each anchor rod is generally not less than three times the anchor hole diameter D. The total number of peripheral anchor rods and central anchor rods is usually an odd number of 5, 7, or 9. The periphery of the limiting toothed disc is provided with limiting screw holes. The limiting toothed disc and the anchor rod limiting cylinder are fixed to the peripheral anchor rods through limiting screws. The limiting toothed disc can adjust the diameter of the inner teeth according to the diameter of the anchor rod, making the device highly versatile. A set of accessories can be applied to the construction of anchor rods with different hole diameters and anchor bar diameters, covering common anchor rod specifications. In addition to being applicable to 1+X type anchor rod foundations, it is also applicable to common square-arranged multi-anchor rod foundations.

[0014] Three leveling struts are installed at equal intervals on the periphery of the limiting toothed disc. The leveling struts pass through the horizontal plane of the horizontal telescopic rod and are supported on the bottom surface of the foundation. Through structures such as the telescopic bracket and the limiting toothed disc, it can be adapted to various conditions such as different anchor rod diameters, diameters of the ring where the anchor rods are located, and the number of anchor rods. As long as the center point of the tower leg is located, all anchor rods can be positioned and laid out simultaneously before the anchor holes are opened, and holes can be opened during the anchor drilling rig construction phase. It can also be used for anchor rods during the anchor pouring and grouting material solidification phase to ensure that after the anchor rods are completed, their positioning error is less than the allowable range, thereby successfully completing the subsequent precise assembly of the anchor rods and the connecting steel plates.

[0015] As a further solution of the present invention, when the anchor rods are arranged in a square, the horizontal telescopic rods of the four telescopic brackets with angles of 45°, 135°, 225° and 315° can be replaced by telescopic rods equipped with horizontal electric push rods. For the anchor rods arranged in a square, the horizontal electric push rods on the four horizontal rods of the telescopic brackets with angles of 45°, 135°, 225° and 315° start to run, driving the four corner limit gear discs connected thereto to synchronously reach the specified positions calculated by the program.

[0016] As a further solution of the present invention, the vertical electric push rod and the horizontal electric push rod are integrated with electronic modules such as motors, reducers, position sensors, wireless receiving modules, parameter input modules and limit switches. These electronic modules are integrated using existing technologies and are not described in detail in this embodiment.

[0017] The vertical and horizontal electric linear actuators are also equipped with remote controls that include a parameter input unit and a wireless transmitter module. Construction workers can control the actuators from the ground by inputting the diameter of the circle in which the anchor rods are located. The program automatically calculates the vertical stroke, enabling the upper and lower positioning plates to automatically rise and fall, driving the diagonal rods to synchronize the surrounding limit gear plates to the designated position. A scale is printed on the horizontal rod of the retractable bracket, allowing construction workers to easily verify positioning at any time during construction to ensure accurate positioning.

[0018] As a further solution of the present invention, the structural members in this embodiment are made of aluminum alloy, which can be quickly installed and disassembled on site, is lightweight, and is easy to use.

[0019] A method for locating a power transmission line anchor rod is provided, wherein the power transmission line anchor rod locating device of the above embodiment is used to locate the anchor rod. The method comprises the following steps:

[0020] S1. Lay out the tower legs and determine their center points. After foundation excavation is complete, drill the center anchor rod. Once the drilling is complete, insert the anchor bar into the drilled hole.

[0021] S2. Insert the positioning plate under the bracket from the top of the anchor bar, determine the approximate placement direction, and insert the positioning screw to temporarily secure it;

[0022] S3. Insert each retractable horizontal rod of the positioning bracket into the screw hole on the periphery of the lower positioning plate and rotate and fix it. The initial length of each horizontal rod remains the same;

[0023] S4. After the diagonal rods and upper positioning plates of each retractable positioning bracket are assembled, insert them from the top of the center anchor rod. Secure one end of the diagonal rod to the horizontal rod support with screws.

[0024] S5. Turn on the remote control switch and input D through the knob of the remote control. 锚杆 , D 锚杆 Set the diameter of the circle where the peripheral anchor rod X is located. Select "Vertical Start / Retract". The vertical electric push rod starts, the upper positioning plate begins to rise, and the horizontal rod of the retractable positioning bracket is stretched synchronously. When the center of the peripheral anchor rod reaches the specified position, the remote control screen prompts "Mission Ended". Observe the scale on the horizontal rod. After verification, turn off the switch. The electric push rod maintains the final position.

[0025] S6. Secure the upper positioning plate to the center anchor rod using the limit gear plate and limit screw. Observe the bubble vials on each horizontal rod and adjust the leveling rods next to the bubble vials as needed to ensure that all horizontal rods remain on the same plane.

[0026] If the anchor rods are arranged in a square, select "Horizontal Start / Retract." The program automatically calculates and issues instructions to simultaneously push the four horizontal rods at 45°, 135°, 225°, and 315° angles to the four corners of the square.

[0027] S8. According to the determined position, the drilling limit cylinder is inserted into the outer limit gear disk of the surrounding anchor and fixed by the limit screw, and then the anchor drilling operation is performed;

[0028] S9. After the anchor holes are drilled, remove the drill stoppers for the surrounding anchors and insert a small-diameter inner stopper. The outer and inner stopper discs are secured with stopper screws. The surrounding anchor bars are inserted into their corresponding positions. Grouting is then completed for each anchor from the side of the anchor hole. Curing is performed until the anchors have finally solidified and reached the required strength.

[0029] S10. After the construction is completed, press the "Horizontal Start / Retract" and "Vertical Start / Retract" buttons on the remote control in sequence to retract the electric push rod to its initial position, remove the limit screw and limit gear disc, and then remove the positioning device from above the anchor rod.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. When the present invention is used, the efficiency of anchor rod positioning, especially anchor rod positioning in a circular arrangement, is greatly improved. As long as the position of the central anchor rod is determined and the height of the upper positioning plate is changed, the positions of the remaining anchor rods can be quickly and synchronously determined. It is suitable for arrangements of different numbers of peripheral anchor rods, and can also be used for traditional square anchor rod arrangements such as 2×2 and 3×3. Construction personnel only need to observe the scale position to complete the calibration. If an electric push rod assembly is selected, construction personnel only need to input the diameter of the anchor rod on the ground, and the program will automatically calculate the travel distance of the vertical push rod and the travel distance of the horizontal push rod in the square arrangement. No other manual operation is required, and the operation is more accurate and easier than without the electric push rod assembly.

[0032] 2. When the present invention is used, in addition to laying out the lines during construction, the device can also be used to limit the anchor rods from the time the anchor rods are poured to the final setting stage, thereby improving the accuracy of the anchor bar position and ensuring smooth assembly and installation in the later stages. For the actual situation where the foundation ground is unevenly excavated, a bubble tube is provided on the horizontal rod of the positioning bracket to facilitate on-site fine-tuning and leveling.

[0033] 3. When the present invention is in use, the vertical electric push rods achieve the synchronous lifting and lowering of the upper and lower positioning plates, and the horizontal electric push rods achieve the synchronous extension of the horizontal rods at different angles. Remote control saves manpower, and construction workers only need to observe the scale on the horizontal rod of the retractable bracket to complete the positioning verification, which is convenient and intuitive. Through the interactive design of the knob + screen on the remote control, the device automatically triggers the coordinated movement, and the efficiency of on-site debugging is improved by more than 50%, eliminating the tedious work such as on-site calculations and formula derivation.

[0034] 4. For the first time, the system deeply couples remote controller dynamic parameter input with multi-axis, multi-stage coordinated control, automatically reconstructing motion trajectories after parameter updates. Wireless communication and control logic are deeply integrated to ensure parameter consistency and motion accuracy. Multiple vertical and horizontal actuators move in complete sync.

[0035] 5. The equipment is easy to assemble and disassemble, lightweight, and portable. The positioning device consists of an upper positioning plate, a lower positioning plate, a retractable positioning bracket, an inclined rod, and a horizontal rod. Each component is connected by threads or screws, making installation quick and easy. Each component is made of aluminum alloy, which is lightweight and high-strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The figure is a structural schematic diagram of a transmission line anchor positioning device.

[0037] Figure 2 This is a schematic diagram of a transmission line anchor positioning device in the retracted state.

[0038] Figure 3 This is a schematic diagram of the structure of the 1+X anchor drilling stage in a transmission line anchor positioning device.

[0039] Figure 4 Schematic diagram of the 1+X anchor grouting stage of a transmission line anchor positioning device.

[0040] Figure 5 Schematic diagram of the square-arranged anchor grouting stage of a transmission line anchor positioning device.

[0041] Figure 6 The figure is a schematic diagram of the structure of a remote control for a transmission line anchor rod positioning device.

[0042] Figure 7 The figure is a plan view of a device for positioning anchor rods for power transmission lines.

[0043] Figure 8 The figure is a side view of a transmission line anchor positioning device.

[0044] In the figure: 1. Central anchor rod; 2. Peripheral anchor rods; 3. Upper positioning plate; 4. Lower positioning plate; 5. Retractable bracket; 6. Limiting gear plate; 7. Anchor rod limiting cylinder; 8. Limiting screw; 9. Leveling support rod; 10. Vertical electric push rod; 11. Horizontal electric push rod. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0046] In the present invention, the word "exemplary" is used to mean "serving as an example, illustration or description". Any embodiment described in the present invention as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed herein.

[0047] Example

[0048] See also Figures 1 to 4In an embodiment of the present invention, a transmission line anchor rod positioning device includes a center anchor rod 1. The center anchor rod 1 is an anchor rod vertically inserted into the hole of the tower leg, and is used to locate the center position of the tower leg. The first step of the 1+X anchor rod positioning method is based on the hole position of the center anchor rod 1 to ensure that the positions of other positioning rods will not shift. During the construction process, the anchor bar diameter d of the center anchor rod 1 is generally 20-36 mm, and the anchor hole diameter D corresponding to the anchor bar is generally 80-120 mm. The center anchor rod 1 is sequentially sleeved with an upper positioning plate 3 and a lower positioning plate 4 from top to bottom. The upper positioning plate 3 and the lower positioning plate 4 are linked by vertical electric push rods 10 at both ends. After the lower tail plate 4 and the center anchor rod 1 are positioned, the vertical electric push rod 10 can be remotely controlled. The upper positioning plate 3 is pushed to rise and fall, and multiple retractable brackets 5 are installed on the periphery of the upper positioning plate 3. The retractable bracket 5 consists of two movable telescopic rods, one of which is tilted. The upper end of this telescopic rod is installed with the upper positioning plate 3 through a screw and can be freely rotated to adjust the angle. The length of the tilted rod is about 900mm. The other telescopic rod is horizontally arranged at the lower end of the tilted telescopic rod and is connected by a screw. The surface of the horizontally arranged telescopic rod is provided with length scale lines. The synchronous lifting and lowering of the upper and lower positioning plates is achieved by the vertical electric push rod, and the synchronous extension of the horizontal rods at different angles is achieved by the horizontal electric push rod. Remote control saves more manpower. Construction personnel only need to observe the scale on the horizontal rod of the retractable bracket to complete the positioning verification, which is convenient and intuitive. Through the interactive design of the knob + screen on the remote control, the device automatically triggers coordinated movement, and the on-site debugging efficiency is improved by more than 50%, avoiding tedious work such as on-site calculations and formula derivation. The other end of the horizontally arranged telescopic rod is provided with a thread, and the outer periphery of the lower positioning plate 4 is correspondingly provided with a screw hole. The other end of the horizontally arranged telescopic rod can be fixed in the screw hole of the lower positioning plate 4 through a thread. The length of the horizontally arranged telescopic rod is 400~800mm.

[0049] A bubble tube is installed on the horizontal telescopic rod of each telescopic bracket 5, so that when the foundation pit is uneven, the bottom surface of the positioning bracket can be kept level by adjusting the length of the leveling support rod by a small amount. Screw holes are opened on the periphery of the upper positioning plate 3 and the lower positioning plate 4. When the anchor hole opening operation is performed, the center anchor rod 1 can be clamped by inserting the positioning screw into the screw hole to achieve the fixation between the upper positioning plate 3 and the lower positioning plate 4 and the center anchor rod 1. A limiting toothed disc 6 is also movably installed on the outer side of the screw connection between the inclined telescopic rod and the horizontal telescopic rod. An anchor rod limiting cylinder 7 is set inside the limiting toothed disc 6. The interior of the anchor rod limiting cylinder 7 can be inserted around the center anchor rod 1 for positioning. The peripheral anchor rods 2, the anchor hole spacing corresponding to each anchor rod is generally not less than three times the anchor hole diameter D, the total number of peripheral anchor rods 2 and central anchor rods 1 is usually 5, 7, 9 odd numbers, and limiting screw holes are opened on the periphery of the limiting toothed disc 6. The limiting toothed disc 6 and the anchor rod limiting cylinder 7 are fixed to the peripheral peripheral anchor rods 2 by limiting screws 8. The limiting toothed disc 6 can adjust the diameter of the inner teeth according to the diameter of the anchor rod, so that the device has excellent versatility. A set of accessories can be used for anchor rod construction with different hole diameters and anchor bar diameters, covering common anchor rod specifications. In addition to being suitable for 1+X type anchor rod foundations, it is also applicable to common square-arranged multi-anchor rod foundations.

[0050] Three leveling struts 9 are installed at equal intervals on the periphery of the limiting toothed disc 6. The leveling struts 9 pass through the horizontal plane of the horizontal telescopic rod and are supported on the bottom surface of the foundation. Through structures such as the telescopic bracket 5 and the limiting toothed disc 6, it can be adapted to various conditions such as different anchor rod diameters, diameters of the ring where the anchor rods are located, and the number of anchor rods (X=4, 6, 8). As long as the center point of the tower leg is located, all anchor rods can be positioned and laid out simultaneously before the anchor rod holes are opened, and holes can be opened during the anchor drilling rig construction stage. It can also be used for anchor rods during the anchor casting and grouting material solidification stages to ensure that after the anchor rods are completed, their positioning error is less than the allowable range, thereby successfully completing the subsequent precise assembly of the anchor rods and the connecting steel plates.

[0051] See also Figure 5 When the anchor rods are arranged in a square, the horizontal telescopic rods of the four telescopic brackets 5 with angles of 45°, 135°, 225°, and 315° can be replaced with telescopic rods equipped with horizontal electric push rods 11. For the anchor rods arranged in a square, the horizontal electric push rods 11 on the four horizontal rods of the telescopic brackets with angles of 45°, 135°, 225°, and 315° start to run, driving the limit gear discs 6 at the four corners connected thereto to synchronously reach the specified positions calculated by the program. The telescopic rods of the horizontal electric push rods 11 here can be selected according to needs. If not selected, they can also be controlled synchronously by manual operation.

[0052] See also Figure 6-8The vertical electric push rod 10 and the horizontal electric push rod 11 are integrated with electronic modules such as motors, reducers, position sensors, wireless receiving modules, parameter input modules and limit switches. These electronic modules are integrated using existing technologies and are not described in detail in this embodiment.

[0053] The electric push rod stroke set in this embodiment is 400mm, and the maximum extension is 800mm. When the electric push rod is fully extended, the horizontal section of the telescopic bracket is 400mm long; when the electric push rod is fully retracted, the horizontal section of the telescopic bracket is 800mm long. When the square anchor rod is arranged, the horizontal section of the telescopic bracket can be extended to 1200mm.

[0054] The vertical electric push rod 10 and the horizontal electric push rod 11 are also equipped with a remote control. The remote control contains a parameter input unit and a wireless transmission module. Construction workers can control it through the remote control from the ground. By inputting the diameter of the circle where the anchor rod is located, the program can automatically calculate the vertical stroke, realize the automatic vertical lifting and lowering of the upper and lower positioning plates 4, and drive the diagonal rod to synchronously move the surrounding limiting gear plates 6 to the specified position. The horizontal rod of the retractable bracket 5 is printed with a scale to facilitate construction workers to check the positioning at any time during the construction process to ensure the accuracy of the positioning.

[0055] When implementing this embodiment, the hardware configuration parameters of the electric linear actuator and remote controller can be referred to as follows:

[0056] Hardware configuration: Main control chip: STM32F103 (with PWM output);

[0057] Sensor: potentiometer (10KΩ linear);

[0058] Motor drive: DRV8871 (supports PWM speed regulation);

[0059] Wireless module: NRF24L01 (2.4GHz, low latency).

[0060] Power supply: Remote control: 1 18650 lithium battery (3.7V, 2500mAh) + boost module (to 5V)

[0061] Receiver: 2 18650 batteries (7.4V) + step-down module (to 5V for MCU, 7.4V directly for power supply)

[0062] Remote control: 2 10kΩ potentiometers (for distance adjustment) + 3 buttons (power on / off, vertical start / retract, horizontal start / retract) + OLED display

[0063] The control code is written based on the Arduino platform. It enables the vertical push rod to move a certain distance first, and then the horizontal push rod starts to move after it reaches the position. It also includes direction control and position feedback calibration.

[0064] The structural members in this embodiment are made of aluminum alloy, which can be quickly installed and disassembled on site, and are lightweight and easy to use.

[0065] A method for locating a power transmission line anchor rod is provided, wherein the power transmission line anchor rod locating device of the above embodiment is used to locate the anchor rod. The method comprises the following steps:

[0066] S1. Lay out the tower legs according to their position, determine the center point of the tower legs, and drill a hole for the center anchor rod after foundation excavation is completed. After drilling, the anchor rod of the center anchor rod 1 is inserted into the hole;

[0067] S2. Insert the positioning plate 4 under the bracket from the top of the anchor bar, and determine the approximate placement direction, insert the positioning screw to temporarily fix it;

[0068] S3. Insert each retractable horizontal rod of the positioning bracket into the lower positioning plate 4 and rotate the outer screw to fix it. The initial length of each horizontal rod remains the same;

[0069] S4. After each retractable positioning bracket diagonal rod and the upper positioning plate 3 is assembled, insert from the top of the center anchor rod 1, one end of the diagonal rod and the horizontal rod support is fixed by a screw;

[0070] S5. Turn on the remote control switch and input D through the knob of the remote control. 锚杆 , select "Vertical Start / Retract", the vertical electric push rod starts, the upper positioning plate 3 starts to rise, and the horizontal rod of the retractable positioning bracket stretches synchronously. When the center positioning of the peripheral anchor rod 2 reaches the specified position, the remote control screen prompts "Task End". Observe the scale on the horizontal rod. After verification, you can turn off the switch. The electric push rod maintains the final position unchanged; after the lower positioning plate 4 of the bracket is fixed to the central anchor rod 1, input the diameter D of the peripheral anchor rod 2 through the built-in potentiometer of the remote control. 锚杆 , the built-in program automatically calculates the vertical stroke Δ1, sends a synchronous control instruction (including the target position of the vertical push rod), and the receiving end MCU on the push rod parses the instruction and generates a synchronous PWM signal to drive the push rod. A position sensor is used to detect the actual position of the push rod, and the PWM duty cycle is dynamically adjusted through the PID algorithm to compensate for mechanical errors and load differences, ensuring that the two vertical push rods are synchronously extended or shortened with an error of less than 3mm, so that the positioning plate 3 on the bracket maintains the horizontal plane and rises and falls, and all the horizontal rods of the bracket are synchronously shortened or extended, thereby achieving synchronous and precise automatic positioning of the annular anchor rods at different radii. When the length of the horizontal rods of all retractable brackets 5 reaches the preset target, the remote control displays "Task End", the electric push rod automatically stops running, the positions of the various components of the device are locked, and each bracket forms a stable triangle. After confirming that there is no error by reviewing the scales on each rod, the next step of operation can be carried out. At this stage, the extension of the vertical electric push rod is:

[0071]

[0072] Among them L 斜杆 is the length of the bracket diagonal rod, L 推杆初长 is the initial length of the electric push rod, which is a constant value; L 水平杆 The length of the horizontal rod of the bracket can be automatically converted according to the radius of the circle where the input annular anchor rods are located.

[0073] S6. Over the limit gear plate 6, the limit screw 8 will be fixed to the upper positioning plate 3 and the center anchor rod 1, observe the bubble tube of each horizontal rod, adjust the bubble tube next to the leveling strut according to the situation, to achieve each horizontal rod to remain in the same plane;

[0074] S7. If the anchor rods are arranged in a square, select "Horizontal Start / Retract". The program will automatically calculate and issue instructions to push the four horizontal rods of the support at 45°, 135°, 225°, and 315° to the four corner points of the square. For anchor rods arranged in a square, take a 3×3 arrangement as an example. The previous step has completed the positioning of the four anchor rods at 0°, 90°, 180°, and 270°. At this time, turn on the horizontal push rod control potentiometer on the remote control. The program will adjust the angle according to the D input in the previous step. 锚杆 , automatically calculate Δ2, send a synchronous control command, then the corresponding remaining four retractable bracket 5 horizontal rods at 45°, 135°, 225°, and 315° angles start to move until they are extended by Δ2, and the remote control displays "Mission Ended";

[0075] R 锚杆 The radius of the circle where the anchor rods are arranged in a circular pattern.

[0076] S8. According to the determined position, the drilling limit cylinder is inserted into the outer limit gear disk around the anchor 2 and fixed by the limit screw 8, and then the anchor drilling operation;

[0077] S9. After the anchor holes are drilled, remove the drilling stopper cylinders of the peripheral anchor rods 2 and insert the small-diameter inner stopper gear discs. The outer and inner stopper gear discs are fixed with stopper screws 8. The peripheral anchor bars are inserted into the corresponding positions. Grouting of each anchor rod is completed from the side of the anchor hole and curing is carried out until the final solidification reaches the required strength.

[0078] After the anchor hole is drilled, the hole limiting cylinder is taken out from the limiting toothed disc 6, and the anchor limiting cylinder 7 and the anchor reinforcement are inserted in sequence. After being fixed by the limiting screw 8, the anchor reinforcement is automatically located in the center of the anchor hole. No moving device is required, and the next step of anchor grouting operation can be carried out to ensure that the anchor reinforcement is centered during the grouting process.

[0079] S10. After the construction is completed, press the "Horizontal Start / Retract" and "Vertical Start / Retract" buttons on the remote control in sequence to retract the electric push rod to its initial position, remove the limit screw and limit gear disc, and then remove the positioning device from above the anchor rod.

[0080] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A transmission line anchor positioning device, characterized in that: The invention comprises a central anchor rod (1), wherein the central anchor rod (1) is sequentially sleeved with an upper positioning plate (3) and a lower positioning plate (4) from top to bottom, and the upper positioning plate (3) and the lower positioning plate (4) are linked by vertical electric push rods (10) arranged at both ends. A plurality of telescopic brackets (5) are installed on the periphery of the upper positioning plate (3), and the telescopic brackets (5) are composed of two movable telescopic rods, one of which is arranged tilted, and the upper end of the telescopic rod is mounted together with the upper positioning plate (3) through a screw and can be freely rotated to adjust the angle. The other telescopic rod is horizontally arranged at the lower end of the tilted telescopic rod and is connected to the upper positioning plate through a screw. The surface of the horizontally arranged telescopic rod is provided with a length scale line, and the other end of the horizontally arranged telescopic rod is provided with a thread. The periphery of the lower positioning plate (4) is correspondingly provided with a screw hole, and the other end of the horizontally arranged telescopic rod can be fixed in the screw hole of the lower positioning plate (4) through a thread.

2. A transmission line anchor positioning device according to claim 1, characterized in that: A limiting toothed disc (6) is movably installed on the outer side of the screw connection between the inclined telescopic rod and the horizontal telescopic rod, an anchor rod limiting cylinder (7) is arranged inside the limiting toothed disc (6), and peripheral anchor rods (2) for positioning around the central anchor rod (1) can be inserted into the interior of the anchor rod limiting cylinder (7). Three leveling struts (9) are installed at equal intervals on the outer periphery of the limiting toothed disc (6), and the leveling struts (9) pass through the horizontal surface of the horizontal telescopic rod and are supported on the bottom surface of the foundation.

3. A transmission line anchor positioning device according to claim 2, characterized in that: The periphery of the limiting toothed disc (6) is provided with limiting screw holes, and the limiting toothed disc (6), the anchor rod limiting cylinder (7) and the peripheral anchor rods (2) are fixed via limiting screws (8).

4. The power transmission line anchor positioning device according to claim 1, characterized in that: A bubble tube is installed on the horizontal telescopic rod of each telescopic bracket (5), so that when the foundation pit is uneven, the length of the leveling support rod (9) can be adjusted by a small amount to keep the bottom surface of the positioning bracket level.

5. The power transmission line anchor positioning device according to claim 1, characterized in that: Screw holes are provided on the peripheries of the upper positioning plate (3) and the lower positioning plate (4), and positioning screws can be inserted into the screw holes to clamp the central anchor rod (1), thereby achieving fixation between the upper positioning plate (3) and the lower positioning plate (4) and the central anchor rod (1).

6. The power transmission line anchor rod positioning device according to claim 1, characterized in that: The horizontal telescopic rod of the telescopic bracket (5) can be replaced by a telescopic rod equipped with a horizontal electric push rod (11).

7. The power transmission line anchor positioning device according to claim 6, characterized in that: The horizontal electric push rod (11) and the vertical electric push rod (10) are both integrated with electronic modules such as a motor, a reducer, a position sensor, a wireless receiving module, a parameter input module and a limit switch.

8. The power transmission line anchor positioning device according to claim 7, characterized in that: The vertical electric push rod (10) and the horizontal electric push rod (11) are also equipped with a remote controller for remote control, and the remote controller contains a parameter input unit and a wireless transmission module.

9. A method for locating a power transmission line anchor rod, using the power transmission line anchor rod locating device according to any one of claims 1 to 8 to locate the anchor rod, the method comprising the following steps: S1. According to the position of the tower legs, the center point of the tower legs is determined. After the foundation excavation is completed, the center anchor rod (1) is drilled. After the drilling is completed, the anchor rod (1) is inserted into the drill hole; S2. Insert the positioning plate (4) under the bracket from the top of the anchor bar, and determine the approximate placement direction, insert the positioning screw to temporarily fix it; S3. Insert each retractable horizontal rod of the positioning bracket into the lower positioning plate (4) and rotate and fix it around the outer screw hole. The initial length of each horizontal rod remains the same; S4. After the retractable positioning bracket diagonal rod and the upper positioning plate (3) are assembled, insert from the top of the center anchor rod (1), and one end of the diagonal rod is fixed to the horizontal rod support by a screw; S5. Turn on the remote control switch and input D through the knob of the remote control. 锚杆 , D 锚杆 The diameter of the circle where the peripheral anchor rod X is located is selected. "Vertical start / retract" is started. The vertical electric push rod (10) is started, the upper positioning plate (3) begins to rise, and the horizontal rod of the retractable positioning bracket is stretched synchronously. When the center positioning of the peripheral anchor rod (2) reaches the specified position, the remote control screen prompts "Task End". Observe the scale on the horizontal rod. After verification, turn off the switch. The electric push rod maintains the final position unchanged. S6. Over the limit gear (6), the limit screw (8) will be on the positioning plate (3) and the center anchor (1) fixed, observe the bubble tube of each horizontal rod, according to the situation to adjust the bubble tube next to the leveling strut (9), to achieve each horizontal rod to remain in the same plane; S7. If the anchor rods are arranged in a square, select "Horizontal Start / Retract." The program automatically calculates and issues instructions to simultaneously push the four horizontal rods (at 45°, 135°, 225°, and 315°) to the four corners of the square. S8. According to the determined position, the drilling limit cylinder is inserted into the outer limit gear disk of the peripheral anchor (2) and fixed by the limit screw (8), and then the anchor drilling operation is performed; S9. After the anchor holes are drilled, remove the drilling limit cylinders of the peripheral anchor rods (2) and insert them into the inner limit toothed discs with small diameters. The outer and inner limit toothed discs are fixed with limit screws (8). The peripheral anchor bars are inserted into the corresponding positions. Grouting of each anchor rod is completed from the side of the anchor hole and curing is performed until the final solidification reaches the strength. S10. After the construction is completed, press "Horizontal Start / Retract" and "Vertical Start / Retract" on the remote control in sequence, and the electric push rod will retract to the initial position. Remove the limit screw (8) and the limit gear disc (6), and then remove the positioning device from above the anchor rod.

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