Anchor cable intelligent tensioning device and control method

Abstract

The invention relates to the technical field of tensioning devices, and discloses an intelligent anchor cable tensioning device and a control method. A tensioning assembly is provided with a mounting frame, and an inner cavity of the tensioning assembly is provided with a first driving piece and a winding piece; the control panel is arranged on the surface of the mounting frame, and an extension value monitor is further arranged on the tensioning assembly; a mounting groove is formed in the upper surface of the tensioning assembly, a second driving part is arranged in the mounting groove, the output end of the second driving part is connected with a driving frame, a third driving part and a mounting plate are arranged on the driving frame, and positioning parts are arranged at the bottom of the mounting plate and correspond to the driving frame. The control method comprises the steps that initial parameters are set, and the positioning piece forms an anchor cable steel wire rope fixing cavity; the fourth driving piece cooperatively clamps the end of the anchor cable steel wire rope. The first driving piece drives the winding piece to stretch and draw, and elongation data is collected in real time; the control panel dynamically adjusts the output torque and the winding speed, and the horizontal position of the driving frame is finely adjusted if necessary; and the adjustment accuracy and the device stability are guaranteed through cooperation of the guide pieces. The anchor cable can be stably and reliably fixed, and the tensioning accuracy is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tensioning devices, in particular to an intelligent anchor cable tensioning device and a control method. BACKGROUND

[0002] The intelligent anchor cable tensioning device is mainly used for precise tensioning of anchor cables in geotechnical engineering, construction engineering and other scenes to ensure the effectiveness and reliability of structure prestress application.

[0003] In the prior art, when the anchor cable tensioning equipment fixes the anchor cable, the simple fixing structure or single clamping method often causes the anchor cable to slide easily during tensioning, affecting the tensioning accuracy. At the same time, the traditional tensioning control relies on fixed parameters or manual intervention, lacks real-time monitoring and dynamic adjustment mechanism for the elongation value of the anchor cable, and cannot timely optimize the tensioning parameters according to the elongation value change rate, resulting in low control accuracy. In addition, when the tensioning position needs to be adjusted or the deviation needs to be compensated, the movement of the driving part lacks effective guiding constraint, which easily causes additional errors due to inaccurate adjustment, further reducing the stability and control effect of the tensioning process. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an intelligent anchor cable tensioning device and a control method to solve the problems of anchor cable sliding easily during tensioning, affecting tensioning accuracy, inability to timely optimize tensioning parameters according to elongation value change rate, low control accuracy, and easy generation of additional errors due to inaccurate adjustment.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an intelligent anchor cable tensioning device, comprising:

[0006] A tensioning unit and a tensioning assembly, a threading mechanism is connected to the outlet of the tensioning unit, a honeycomb-shaped wire hole is formed in the threading mechanism, a single wire is respectively threaded out from the tensioning assembly and finally passes through the wire hole of the threading mechanism, the tensioning assembly is uniformly arranged in the cavity of the tensioning unit, the tensioning unit is composed of at least four tensioning assemblies, a mounting bracket is installed on the upper surface of the tensioning assembly, a first driving member is installed in the cavity of the mounting bracket, and a winding member is installed on the output end of the first driving member;

[0007] A control panel is arranged on the surface of the tensioning assembly mounting bracket, and an elongation value monitoring meter is installed on the surface of the tensioning assembly.

[0008] The installation groove is arranged on the upper surface of the tensioning assembly, the second driving element is installed in the installation groove, the output end of the second driving element is provided with the driving frame, the surface of the driving frame is provided with the installation chamber, the upper surface of the driving frame is provided with the third driving element, the output end of the third driving element is provided with the installation plate, the bottom of the installation plate is uniformly provided with the positioning element, and the inside of the installation chamber is also provided with the positioning element at the corresponding position of the positioning element of the installation plate.

[0009] Preferably, the upper surface of the tensioning assembly is provided with an installation frame, the upper surface of the installation frame is provided with a fourth driving element, the output end of the fourth driving element is provided with a lifting plate, and the fourth driving element is a pneumatic cylinder.

[0010] The upper surface of the installation frame is vertically provided with the fourth driving element, the piston rod output end of the fourth driving element extends downward and is fixedly connected with the center position of the upper surface of the lifting plate, and when the fourth driving element works, the piston rod drives the lifting plate to ascend or descend in the vertical direction through the telescopic movement, so that the height adjustment of the lifting plate or the compression / release function of the object below is realized.

[0011] Preferably, the bottom of the lifting plate and the upper surface of the tensioning assembly are both provided with an installation block, the surface of the installation block is provided with a limiting element, and the limiting element is a pulley.

[0012] The bottom surface of the lifting plate and the upper surface of the tensioning assembly are respectively fixedly provided with installation blocks, the surface of each installation block is provided with a limiting element through a rotating shaft, the limiting element is a pulley, the wheel body of the pulley can rotate freely around the shaft, is used for guiding or transversely limiting the anchor cable during the tensioning process of the anchor cable, prevents the anchor cable from deviating, and ensures the stability and accuracy of the tensioning operation.

[0013] Preferably, the upper surface of the installation plate is provided with a first guide element, the first guide element penetrates the surface of the driving frame, and the first guide element is a guide rod.

[0014] The upper surface of the installation plate is fixedly provided with a first guide element in a bolted or welded manner, the first guide element is a guide rod, one end of the guide rod is vertically connected with the upper surface of the installation plate, the other end extends upward and penetrates the guide hole provided on the surface of the driving frame, when the third driving element drives the installation plate to move, the guide rod slides along the guide hole of the driving frame, the movement track of the installation plate is constrained through the cooperation of the guide rod and the driving frame, transverse deviation or rotation of the installation plate is prevented, the positioning element at the bottom of the installation plate is accurately positioned with the positioning element in the installation chamber, and the stability and positioning accuracy of the tensioning operation are improved.

[0015] Preferably, the surface of the driving frame is provided with a second guide element, the installation groove and the second guide element are both provided with a guide groove at the corresponding position, and the second guide element is a guide block.

[0016] The surface of the driving frame is provided with a second guide piece in a bolted or welded manner, the second guide piece is a guide block, the inner wall of the installation groove is provided with a guide groove at the corresponding position of the second guide piece, when the second driving piece drives the driving frame to move in the installation groove, the guide block is embedded in the guide groove and slides along it, the movement track of the driving frame is constrained through the cooperation of the guide block and the guide groove, preventing it from shifting or shaking laterally, ensuring the stable movement of the driving frame in the predetermined direction, and improving the accuracy of the positioning piece and the stability of the overall tensioning operation.

[0017] An anchor cable intelligent tensioning control method based on the above-mentioned anchor cable intelligent tensioning device, comprising the following steps:

[0018] S1 tensioning preparation:

[0019] The control panel is provided with an intelligent control platform, the initial parameters are set through the control panel, the second driving piece drives the driving frame to move to the preset position, the third driving piece drives the installation plate to move downward, and the positioning piece cooperates with the positioning piece in the driving frame to form an anchor cable steel wire rope fixing cavity;

[0020] S2 anchor cable fixing:

[0021] The fourth driving piece drives the lifting plate to move downward, and the limiting piece of the lifting plate bottom mounting block cooperates with the limiting piece of the mounting block on the upper surface of the tensioning assembly to clamp the end of the anchor cable steel wire rope;

[0022] S3 tensioning control:

[0023] The first driving piece drives the winding piece to apply tension to the anchor cable, and simultaneously collects the anchor cable elongation data in real time through the elongation monitoring meter and feeds back to the control panel;

[0024] S4 dynamic adjustment:

[0025] The control panel dynamically adjusts the output torque and winding speed of the first driving piece based on the elongation value change rate, and when the elongation value deviation exceeds the threshold value, the second driving piece triggers the fine adjustment of the horizontal position of the driving frame;

[0026] S5 process guarantee:

[0027] When the installation plate moves upward, the first guide piece and the driving frame slide together, and when the driving frame moves, the second guide piece and the guide groove of the installation groove constitute linear constraint.

[0028] Preferably, in step S1, the control panel records the torque, speed and elongation value parameters of the tensioning process, and generates a log file containing a time stamp, supporting offline retrieval and analysis;

[0029] The intelligent control platform built in the control panel collects the output torque data of the first driving member, the winding speed data and the elongation value data fed back by the elongation monitoring meter in real time, stores the three types of parameters and the current time stamp of the system at preset time intervals into the built-in storage module during the whole tensioning process, and forms a log file containing the time stamp; after the tensioning operation is completed, the user triggers the log export instruction through the operation interface of the control panel, and the control platform transmits the log file to the external equipment through the wired interface or the wireless transmission module, supports the user to call off-line and use professional analysis software to visually analyze the time sequence relationship of the torque, speed and elongation value, so as to evaluate the stability and parameter rationality of the tensioning process.

[0030] Preferably, in the step S1, the third driving member drives the installation plate to descend to the limit position and then ascend by a preset distance, so as to eliminate the mechanical clearance and ensure that the positioning member is centered with the anchor cable steel wire rope axis;

[0031] After the third driving member is started, the output end of the third driving member drives the installation plate to move downward along the vertical direction until the positioning member at the bottom of the installation plate is in full contact with the positioning member in the driving frame or reaches the mechanical downward limit position; then, the third driving member reverses the action, drives the installation plate to move upward by a preset small distance, eliminates the mechanical clearance between the installation plate and the driving frame through this upward adjustment, makes the positioning member at the bottom of the installation plate accurately centered with the positioning member in the driving frame, and ensures that the anchor cable steel wire rope axis coincides with the axis of the fixed cavity formed by the positioning member, thereby providing an accurate positioning reference for subsequent tensioning.

[0032] Preferably, in the step S4, the control panel adopts a segmented control strategy: when the elongation value change rate is greater than a first threshold value, the output torque of the first driving member is reduced and the winding speed is slowed down; when the elongation value change rate is less than a second threshold value, the output torque of the first driving member is increased;

[0033] The intelligent control platform built in the control panel calculates the current elongation value change rate by receiving the anchor cable elongation data fed back by the elongation monitoring meter in real time, and compares the current elongation value change rate with the preset first threshold value and second threshold value: when the elongation value change rate is greater than the first threshold value, the control platform adjusts the input signal of the first driving member to reduce the output torque and synchronously adjusts the rotation speed of the winding member to slow down the tensioning force increase; when the elongation value change rate is less than the second threshold value, the control platform increases the input signal of the first driving member to increase the output torque and speed up the rotation speed of the winding member, so as to maintain the stability and efficiency of the tensioning process, and ensure that the anchor cable elongation value is always within the preset control range through segmented dynamic adjustment.

[0034] Preferably, in the step S4, the horizontal position adjustment of the driving frame adopts a multi-stage positioning mechanism: the second driving member first performs coarse positioning, and then the reverse force during the downward movement of the installation plate driven by the third driving member is used to realize positioning;

[0035] The driving frame horizontal position adjustment adopts a multi-stage positioning mechanism: when the elongation value deviation exceeds a threshold value, the control panel first starts the second driving member, pushes the driving frame to move in the horizontal direction through the output end thereof, and completes the coarse positioning; then, the third driving member drives the mounting plate to move downward, when the positioning member at the bottom of the mounting plate clamps the anchor cable steel wire with the positioning member in the driving frame, the reverse force of the anchor cable is transmitted to the driving frame through the positioning member, at this time, the second driving member is switched to the fine adjustment mode, and the driving frame is subjected to secondary position correction by using the reverse force, through the cooperation of coarse adjustment and reverse force fine adjustment, the precise positioning of the driving frame horizontal position is realized, and it is ensured that the anchor cable axis and the fixing cavity axis formed by the positioning member are completely coincident.

[0036] Compared with the prior art, the anchor cable intelligent tensioning device and control method have the following beneficial effects:

[0037] The anchor cable intelligent tensioning device and control method form an anchor cable steel wire fixing cavity through the cooperation of the positioning member at the bottom of the mounting plate and the positioning member in the driving frame, and realize clamping by driving the mounting plate to move downward by the third driving member, effectively ensuring the stability and reliability of the anchor cable during fixing, avoiding the sliding of the anchor cable during tensioning, and improving the accuracy of the tensioning process; at the same time, the elongation value monitoring meter collects the anchor cable elongation data in real time and feeds back to the control panel, the control panel dynamically adjusts the output torque and winding speed of the first driving member based on the elongation value change rate, triggers the second driving member to fine adjust the driving frame horizontal position when the elongation value deviation exceeds the threshold value, and cooperates with the sliding cooperation of the first guide member and the driving frame when the mounting plate moves upward and the linear constraint of the second guide member and the mounting groove guide groove when the driving frame moves, to ensure the accuracy of the adjustment and the stability of the device operation, reduce errors, and improve the tensioning control precision. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0039] Figure 2 It is a schematic diagram of the tensioning assembly of the present application;

[0040] Figure 3 It is a schematic diagram of the mounting frame of the present application;

[0041] Figure 4 It is a schematic diagram of the driving frame of the present application;

[0042] Figure 5 It is a schematic diagram of the mounting frame of the present application;

[0043] Figure 6 It is a flowchart of the method of the present application.

[0044] In the figure: 1, tensioning assembly; 101, mounting frame; 102, first driving part; 103, winding part; 2, control panel; 3, elongation monitoring meter; 4, mounting groove; 5, second driving part; 6, driving frame; 7, mounting chamber; 8, third driving part; 9, mounting plate; 10, positioning part; 11, mounting frame; 12, fourth driving part; 13, lifting plate; 14, mounting block; 15, limiting part; 16, first guide part; 17, second guide part; 18, guide groove; 19, threading mechanism; 20, tensioning unit. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] The present application provides a technical solution, an anchor cable intelligent tensioning device, please refer to Figures 1-5 The tensioning unit 20 is connected with the tensioning assembly 1, and the threading mechanism 19 is connected at the wire outlet of the tensioning unit 20. The threading mechanism 19 has a honeycomb-shaped wire passing hole inside. A single wire is respectively threaded out of the tensioning assembly 1 and guided by the external guide structure, and finally passes through the wire passing hole of the threading mechanism 19. The threading mechanism 19 with the honeycomb-shaped wire passing hole helps to twist multiple wires into an anchor cable. The tensioning unit 20 is uniformly provided with the tensioning assembly 1 in the inner cavity. The tensioning unit 20 is composed of at least four tensioning assemblies 1. The specific number of components is matched with the number of wire passing holes of the threading mechanism 19. The upper surface of the tensioning assembly 1 is provided with the mounting frame 101. The inner cavity of the mounting frame 101 is provided with the first driving part 102. The output end of the first driving part 102 is provided with the winding part 103.

[0047] The first driving part 102 is a stepper motor, and the winding part 103 is a winding roller.

[0048] According to the number of steel wire ropes of the anchor cable, a corresponding number of tensioning assemblies 1 are installed. Each tensioning assembly 1 can individually tension 1 to 3 steel wire ropes.

[0049] The control panel 2 is arranged on the surface of the mounting frame 101 of the tensioning assembly 1. The surface of the tensioning assembly 1 is provided with the elongation monitoring meter 3.

[0050] The installation groove 4 is arranged on the upper surface of the tensioning assembly 1, the second driving element 5 is arranged in the installation groove 4, the output end of the second driving element 5 is provided with the driving frame 6, the surface of the driving frame 6 is provided with the installation chamber 7, the upper surface of the driving frame 6 is provided with the third driving element 8, the output end of the third driving element 8 is provided with the installation plate 9, the bottom of the installation plate 9 is uniformly provided with the positioning element 10, and the installation chamber 7 is also provided with the positioning element 10 at the corresponding position of the positioning element 10 of the installation plate 9.

[0051] The second driving element 5 and the third driving element 8 are both hydraulic oil cylinders.

[0052] After the equipment is started through the control panel 2, the second driving element 5 drives the driving frame 6 to move to a preset position along the installation groove 4; then the third driving element 8 drives the installation plate 9 to descend, so that the positioning element 10 at the bottom of the installation plate 9 cooperates with the corresponding positioning element 10 in the installation chamber 7, the accurate positioning and fixing of the anchor cable are completed; then the first driving element 102 drives the winding element 103 to perform the tensioning operation on the anchor cable, the elongation monitoring meter 3 monitors the elongation value of the anchor cable in real time and feeds back the data to the control panel 2, the control panel 2 dynamically adjusts the tensioning parameters of the first driving element 102 according to the monitoring data, and finally the intelligent and accurate tensioning control of the anchor cable is realized.

[0053] The upper surface of the tensioning assembly 1 is provided with the installation frame 11, the upper surface of the installation frame 11 is provided with the fourth driving element 12, the output end of the fourth driving element 12 is provided with the lifting plate 13, and the fourth driving element 12 is a pneumatic cylinder.

[0054] The fourth driving element 12 is vertically arranged on the upper surface of the installation frame 11, the piston rod output end of the fourth driving element 12 extends downward and is fixedly connected with the center position of the upper surface of the lifting plate 13, when the fourth driving element 12 works, the piston rod drives the lifting plate 13 to ascend or descend in the vertical direction through the telescopic movement, so that the height adjustment of the lifting plate 13 or the compression / release function of the object below is realized.

[0055] The bottom of the lifting plate 13 and the upper surface of the tensioning assembly 1 are both provided with the installation block 14, the surface of the installation block 14 is provided with the limiting element 15, and the limiting element 15 is a pulley.

[0056] The bottom surface of the lifting plate 13 and the upper surface of the tensioning assembly 1 are respectively fixedly provided with the installation block 14, the surface of each installation block 14 is provided with the limiting element 15 through a rotating shaft, the limiting element 15 is a pulley, the wheel body of the pulley can freely rotate around the shaft, is used for guiding or transversely limiting the anchor cable in the anchor cable tensioning process, prevents the anchor cable from deviating, and ensures the stability and accuracy of the tensioning operation.

[0057] The upper surface of the installation plate 9 is provided with the first guide element 16, the first guide element 16 penetrates through the surface of the driving frame 6, and the first guide element 16 is a guide rod.

[0058] The upper surface of the mounting plate 9 is fixedly provided with a first guide 16 in a bolted or welded manner, the first guide 16 being a guide rod, one end of the guide rod being perpendicularly connected to the upper surface of the mounting plate 9, and the other end extending upward and penetrating a guide hole formed on the surface of the driving frame 6, when the third driving member 8 drives the mounting plate 9 to move, the guide rod slides along the guide hole of the driving frame 6, the movement track of the mounting plate 9 is constrained through the cooperation of the guide rod and the driving frame 6, so as to prevent the mounting plate 9 from being laterally deviated or rotated, and ensure that the positioning member 10 at the bottom of the mounting plate 9 is accurately positioned with the positioning member 10 in the mounting chamber 7, thereby improving the stability and positioning accuracy of the tensioning operation.

[0059] The surface of the driving frame 6 is provided with a second guide 17, and the mounting groove 4 is provided with a guide groove 18 at a position corresponding to the second guide 17, the second guide 17 being a guide block;

[0060] The surface of the driving frame 6 is provided with a second guide 17 in a bolted or welded manner, the second guide 17 being a guide block, and the inner wall of the mounting groove 4 is provided with a guide groove 18 at a position corresponding to the second guide 17, when the second driving member 5 drives the driving frame 6 to move in the mounting groove 4, the guide block is embedded in the guide groove 18 and slides along the guide groove 18, the movement track of the driving frame 6 is constrained through the cooperation of the guide block and the guide groove 18, so as to prevent the driving frame 6 from being laterally deviated or shaken, and ensure that the driving frame 6 moves stably in the predetermined direction, thereby improving the positioning accuracy of the positioning member 10 and the stability of the overall tensioning operation.

[0061] Please refer to Figure 6 A kind of anchor cable intelligent tensioning control method based on the above described a kind of anchor cable intelligent tensioning device, including the following steps:

[0062] S1 tensioning preparation:

[0063] The control panel 2 is provided with an intelligent control platform, initial parameters are set through the control panel 2, the second driving member 5 drives the driving frame 6 to move to the preset position, the third driving member 8 drives the mounting plate 9 to move downward, and the positioning member 10 cooperates with the positioning member 10 in the driving frame 6 to form an anchor cable steel wire rope fixing cavity.

[0064] The intelligent control platform adopts self-adaptive algorithm, can automatically optimize initial parameter setting according to anchor cable specifications and environmental parameters, improves the efficiency and accuracy of the preparation stage;The second driving member 5 feeds back position signal through high-precision encoder, and adopts closed-loop control when the driving frame 6 moves, to ensure that the position accuracy meets the requirement of micrometer level;The surface of the positioning member 10 is provided with anti-skid texture, and self-adaptive fitting is realized through elastic pre-tightening structure when cooperating, which effectively avoids the sliding of steel wire rope in the fixing cavity, and guarantees the fixing reliability.

[0065] S2 anchor cable fixing:

[0066] The fourth driving member 12 drives the lifting plate 13 to move downward, and drives the limiting member 15 of the bottom mounting block 14 of the lifting plate 13 to clamp the end of the steel wire rope of the tensioning assembly 1 in cooperation with the limiting member 15 of the mounting block 14 on the upper surface of the tensioning assembly 1;

[0067] The limiting member 15 is a pulley, the lifting plate 13 is connected with the fourth driving member 12 through a flexible coupling, so that the clamping force is uniform, and the synchronous movement of the two limiting members 15 is realized through a synchronous belt transmission, so that the steel wire rope is uniformly stressed during clamping, and local compression or deformation is prevented.

[0068] S3 tensioning control:

[0069] The first driving member 102 drives the winding member 103 to apply a tensioning force to the anchor cable, and simultaneously collects anchor cable elongation data in real time through the elongation monitoring meter 3 and feeds back to the control panel 2;

[0070] The first driving member 102 is combined with a servo motor and a planetary gear reducer, the output torque is stable and can be accurately adjusted, the winding member 103 is provided with an anti-skid groove on the surface, so that the steel wire rope is prevented from slipping during winding; the elongation monitoring meter 3 is a non-contact laser displacement sensor, which can eliminate the influence of environmental factors on the measurement accuracy in real time by combining a temperature compensation algorithm, the data acquisition frequency is as high as thousands of times per second, and the dynamic response capability of the tensioning process is ensured;

[0071] S4 dynamic adjustment:

[0072] The control panel 2 dynamically adjusts the output torque and winding speed of the first driving member 102 based on the elongation value change rate, and triggers the second driving member 5 to finely adjust the horizontal position of the driving frame 6 when the elongation value deviation exceeds a threshold value;

[0073] The control panel 2 is provided with a dynamic adjustment algorithm, which automatically calculates the correction amount of the output torque and the winding speed by analyzing the elongation value change rate in real time and combining a preset stress-strain model; the second driving member 5 adopts a micro-step driving technology, the adjustment accuracy of the horizontal position of the driving frame 6 can reach microns, and the adjustment process is monitored in real time by a pressure sensor, so that the stability of the tensioning process and the uniformity of the stress distribution are ensured;

[0074] S5 process guarantee:

[0075] When the mounting plate 9 moves upward, the first guide member 16 and the driving frame 6 are in sliding cooperation, and when the driving frame 6 moves, the second guide member 17 and the guide groove 18 of the mounting groove 4 constitute linear constraints;

[0076] The first guide component 16 ensures that the mounting plate 9 moves upward without swaying or jamming; the second guide component 17 is a high-rigidity guide block, and the contact surface with the guide groove 18 is precision ground. The rigidity of the linear constraint can withstand the maximum lateral force during the tensioning process, effectively suppressing the vibration of the drive frame 6 when it moves, and improving the motion accuracy and durability of the overall structure.

[0077] In step S1, control panel 2 records the torque, speed and elongation parameters of the entire tensioning process and generates a log file containing timestamps, which can be retrieved and analyzed offline.

[0078] The intelligent control platform built into the control panel 2 collects output torque data, winding speed data, and elongation value data fed back by the elongation value monitor 3 from the first drive component 102 in real time through sensors. During the entire tensioning process, the three types of parameters are associated with the current system timestamp and stored in the built-in storage module at preset time intervals to form a log file containing the timestamp. After the tensioning operation is completed, the user triggers the log export command through the operation interface of the control panel 2. The control platform transmits the log file to an external device through a wired interface or wireless transmission module, which supports offline retrieval by the user and visualization analysis of the time sequence relationship between torque, speed and elongation value using professional analysis software to evaluate the stability of the tensioning process and the rationality of the parameters.

[0079] In step S1, the third driving component 8 drives the mounting plate 9 to descend to the limit position and then ascends a preset distance to eliminate mechanical clearance and ensure that the positioning component 10 is aligned with the axis of the anchor cable wire rope.

[0080] After the third driving component 8 is activated, its output end drives the mounting plate 9 to move downward in the vertical direction until the bottom positioning component 10 of the mounting plate 9 is in complete contact with the positioning component 10 inside the drive frame 6 or reaches the mechanical downward limit position. Subsequently, the third driving component 8 reverses its action, driving the mounting plate 9 to move upward a preset small distance. This upward adjustment eliminates the mechanical gap between the mounting plate 9 and the drive frame 6, so that the positioning component 10 at the bottom of the mounting plate 9 is precisely aligned with the positioning component 10 inside the drive frame 6. This ensures that the axis of the anchor cable steel wire rope coincides with the axis of the fixed cavity formed by the positioning component 10, providing an accurate positioning reference for subsequent tensioning.

[0081] In step S4, the control panel 2 adopts a segmented control strategy: when the elongation change rate is greater than the first threshold, the output torque of the first drive member 102 is reduced and the winding speed is slowed down; when the elongation change rate is less than the second threshold, the output torque of the first drive member 102 is increased.

[0082] The intelligent control platform built into the control panel 2 receives real-time anchor cable elongation data from the elongation monitoring meter 3, calculates the current rate of change of elongation value, and compares it with a preset first threshold and a second threshold. When the rate of change of elongation value is greater than the first threshold, the control platform adjusts the input signal of the first drive component 102 to reduce its output torque and simultaneously adjusts the rotation speed of the winding component 103 to slow down the increase in tension force. When the rate of change of elongation value is less than the second threshold, the control platform increases the input signal of the first drive component 102 to increase its output torque and accelerate the rotation speed of the winding component 103 to maintain the stability and efficiency of the tensioning process. Through segmented dynamic adjustment, the anchor cable elongation value is always kept within the preset control range.

[0083] In step S4, the horizontal position adjustment of the drive frame 6 adopts a multi-stage positioning mechanism: the second drive component 5 first performs coarse positioning, and then the third drive component 8 drives the mounting plate 9 to achieve positioning through the reverse force when it moves downward.

[0084] The horizontal position adjustment of the drive frame 6 adopts a multi-stage positioning mechanism: when the elongation deviation exceeds the threshold, the control panel 2 first activates the second drive component 5, which pushes the drive frame 6 to move horizontally through its output end to complete the coarse positioning; then, the third drive component 8 drives the mounting plate 9 downward. When the positioning component 10 at the bottom of the mounting plate 9 clamps the anchor cable wire rope with the positioning component 10 inside the drive frame 6, the reverse force of the anchor cable is transmitted to the drive frame 6 through the positioning component 10. At this time, the second drive component 5 switches to fine adjustment mode and uses this reverse force to perform secondary position correction on the drive frame 6. Through the synergy of coarse adjustment and fine adjustment with reverse force, the horizontal position of the drive frame 6 is accurately positioned, ensuring that the anchor cable axis and the fixed cavity axis formed by the positioning component 10 are completely coincident.

[0085] This solution uses the positioning component 10 at the bottom of the mounting plate 9 to cooperate with the positioning component 10 inside the drive frame 6 to form a fixing cavity for the anchor cable and wire rope. The third drive component 8 drives the mounting plate 9 downward to achieve clamping, effectively ensuring the stability and reliability of the anchor cable during fixing, avoiding anchor cable slippage during tensioning, and improving the accuracy of the tensioning process. At the same time, the elongation monitoring meter 3 collects the anchor cable elongation data in real time and feeds it back to the control panel 2. The control panel 2 dynamically adjusts the output torque and winding speed of the first drive component 102 based on the elongation value change rate. When the elongation value deviation exceeds the threshold, the second drive component 5 is triggered to fine-tune the horizontal position of the drive frame 6. With the sliding cooperation between the first guide component 16 and the drive frame 6 when the mounting plate 9 moves upward, and the linear constraint between the second guide component 17 and the guide groove 18 of the mounting groove 4 when the drive frame 6 moves, the accuracy of the adjustment and the stability of the device operation are ensured, errors are reduced, and the tensioning control accuracy is improved. Finally, the tensioned wire rope is passed through the threading hole of the threading mechanism 19 and tied.

[0086] The workflow is as follows: First, initial parameters are set via control panel 2. Second drive component 5 drives drive frame 6 to the preset position. Third drive component 8 drives mounting plate 9 downward to its limit position and then upward a preset distance to eliminate mechanical clearance, allowing positioning component 10 to cooperate and form a fixing cavity for the anchor cable wire rope, completing the tensioning preparation. Next, fourth drive component 12 drives lifting plate 13 downward, driving limit component 15 to clamp the end of the anchor cable wire rope, achieving anchor cable fixation. Subsequently, first drive component 102 drives winding component 103 to tension the anchor cable. Elongation monitoring meter 3 collects data in real time and feeds it back to control panel 2 for tensioning control. During the process, the control panel 2 dynamically adjusts the output torque and winding speed of the first drive component 102 based on the elongation value change rate using a segmented control strategy. When the elongation value deviation exceeds the threshold, the second drive component 5 first coarsely adjusts the horizontal position of the drive frame 6, and then uses the reverse force of the third drive component 8 to drive the mounting plate 9 downward to finely adjust, thus achieving dynamic adjustment. During this period, the mounting plate 9 moves upward through the sliding engagement of the first guide component 16 with the drive frame 6, and the movement of the drive frame 6 is linearly constrained by the second guide component 17 and the guide groove 18 of the mounting groove 4, ensuring process stability and ultimately achieving intelligent and precise tension control of the anchor cable.

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0088] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent anchor cable tensioning device, characterized in that, include: Tensioning unit (20), the outlet of the tensioning unit (20) is connected to a threading mechanism (19), the threading mechanism (19) has honeycomb-shaped threading holes inside, the tensioning unit (20) is composed of at least four tensioning components (1), the upper surface of the tensioning component (1) is equipped with a mounting frame (101), the inner cavity of the mounting frame (101) is equipped with a first driving component (102), and the output end of the first driving component (102) is equipped with a winding component (103); A control panel (2) is disposed on the surface of the tensioning component (1) mounting bracket (101), wherein an elongation monitoring meter (3) is mounted on the surface of the tensioning component (1); The mounting slot (4) is located on the upper surface of the tensioning assembly (1). A second driving component (5) is installed inside the mounting slot (4). A driving frame (6) is installed at the output end of the second driving component (5). An installation chamber (7) is opened on the surface of the driving frame (6). A third driving component (8) is installed on the upper surface of the driving frame (6). An installation plate (9) is installed at the output end of the third driving component (8). Positioning components (10) are evenly distributed on the bottom of the installation plate (9). Positioning components (10) are also installed in the interior of the installation chamber (7) at positions corresponding to the positioning components (10) of the installation plate (9).

2. The intelligent anchor cable tensioning device according to claim 1, characterized in that: The upper surface of the tensioning component (1) is equipped with an installation frame (11), the upper surface of the installation frame (11) is equipped with a fourth driving component (12), and the output end of the fourth driving component (12) is equipped with a lifting plate (13).

3. The intelligent anchor cable tensioning device according to claim 2, characterized in that: Mounting blocks (14) are installed on the bottom of the lifting plate (13) and the upper surface of the tensioning assembly (1), and limiting components (15) are installed on the surface of the mounting blocks (14).

4. The intelligent anchor cable tensioning device according to claim 1, characterized in that: The upper surface of the mounting plate (9) is equipped with a first guide member (16), and the first guide member (16) penetrates the surface of the drive frame (6).

5. The intelligent anchor cable tensioning device according to claim 1, characterized in that: The surface of the drive frame (6) is equipped with a second guide member (17), and the mounting groove (4) and the second guide member (17) are provided with guide grooves (18) at corresponding positions.

6. A method for intelligent tension control of anchor cables, based on the intelligent tensioning device for anchor cables according to any one of claims 1-5, characterized in that: Includes the following steps: S1 tensioning preparation: The control panel (2) has a built-in intelligent control platform. The initial parameters are set through the control panel (2), the second drive component (5) drives the drive frame (6) to move to the preset position, the third drive component (8) drives the mounting plate (9) to move downward, and the positioning component (10) cooperates with the positioning component (10) inside the drive frame (6) to form the anchor cable wire rope fixing cavity. S2 anchor cable fixing: The fourth driving component (12) drives the lifting plate (13) to move downward, causing the limiting component (15) of the bottom mounting block (14) of the lifting plate (13) and the limiting component (15) of the upper surface mounting block (14) of the tensioning component (1) to cooperate in clamping the end of the anchor cable wire rope; S3 tension control: The first driving component (102) drives the winding component (103) to apply tension to the anchor cable, and simultaneously collects the anchor cable elongation data in real time through the elongation monitoring meter (3) and feeds it back to the control panel (2); S4 Dynamic Adjustment: The control panel (2) dynamically adjusts the output torque and winding speed of the first drive unit (102) based on the rate of change of elongation value. When the deviation of elongation value exceeds the threshold, the second drive unit (5) is triggered to fine-tune the horizontal position of the drive frame (6). S5 Process Assurance: When the mounting plate (9) moves upward, it slides with the drive frame (6) through the first guide (16). When the drive frame (6) moves, it forms a linear constraint with the guide groove (18) of the mounting groove (4) through the second guide (17).

7. The intelligent tension control method for anchor cables according to claim 6, characterized in that: In step S1, the control panel (2) records the torque, speed and elongation parameters of the entire tensioning process and generates a log file containing timestamps, which supports offline retrieval and analysis.

8. The intelligent tension control method for anchor cables according to claim 6, characterized in that: In step S1, the third driving component (8) drives the mounting plate (9) to descend to the limit position and then ascends a preset distance to eliminate mechanical clearance and ensure that the positioning component (10) is aligned with the axis of the anchor cable wire rope.

9. The intelligent tension control method for anchor cables according to claim 6, characterized in that: In step S4, the control panel (2) adopts a segmented control strategy: when the elongation change rate is greater than the first threshold, the output torque of the first drive unit (102) is reduced and the winding speed is slowed down; when the elongation change rate is less than the second threshold, the output torque of the first drive unit (102) is increased.

10. The intelligent tension control method for anchor cables according to claim 6, characterized in that: In step S4, the horizontal position adjustment of the drive frame (6) adopts a multi-level positioning mechanism: the second drive component (5) first performs coarse positioning, and then the third drive component (8) drives the mounting plate (9) to achieve positioning by driving the reverse force when it moves downward.

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