A rope self-adaptive take-up and pay-off device and control method

Abstract

The application discloses a rope self-adaptive winding and unwinding device and a control method, and belongs to the technical field of rope winding and unwinding devices. The device comprises a box body, a driving mechanism, a winding mechanism, a clutch transmission mechanism, a tension detection mechanism and a control mechanism. The clutch transmission mechanism is arranged between the driving mechanism and the winding mechanism and is used for switching the power transmission path; the tension detection mechanism is used for detecting the rope tension in real time; the control mechanism is electrically connected with the driving mechanism, the clutch transmission mechanism and the tension detection mechanism, and controls the engagement or disengagement state of the clutch transmission mechanism according to the tension signal. Through the synergistic effect of tension feedback and clutch control, overload protection and self-adaptive adjustment of the rope winding and unwinding process are realized, rope damage and motor overload are effectively avoided, the safety and reliability of the device are significantly improved, and the device has the advantages of compact structure, high intelligentization degree and good portability.

Description

Technical Field

[0001] This invention relates to the field of rope deployment and retraction devices, and specifically to a rope adaptive deployment and retraction device and control method. Background Technology

[0002] In power construction, engineering operations, and outdoor work scenarios, ropes need to be recycled into regular loops after use for repeated storage and transport. Current technologies primarily rely on manual winding or motor-driven automatic winding devices for rope recycling. However, for long ropes or ropes with varying working conditions, manual recycling is time-consuming, labor-intensive, and inefficient. Existing motor-driven automatic winding devices typically use a continuous drive connection between the motor and the drum, which cannot automatically cut off power transmission after rope recycling or when encountering abnormal tension fluctuations, easily leading to rope overstretching damage, motor overload burnout, or loose and disordered loops. Furthermore, existing devices lack real-time sensing and adaptive adjustment capabilities for rope tension, making it difficult to meet the safe and reliable operational requirements under complex conditions. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic rope reeling and unloading device that can adaptively adjust the power transmission path according to the rope tension state and realize overload protection and tension maintenance, so as to overcome the defects of the prior art that continuous transmission can easily lead to rope damage, motor overload and poor rope loop regularity.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rope adaptive release and take-up device, comprising:

[0006] Box;

[0007] The drive mechanism is fixedly installed inside the housing;

[0008] A winding mechanism is rotatably supported within the housing;

[0009] A clutch transmission mechanism is disposed between the power output end of the drive mechanism and the power input end of the winding mechanism, and is used to switch between the engaged state and the disengaged state.

[0010] A tension detection mechanism, positioned along the contact path between the winding mechanism and the rope, is used to detect the rope's tension value in real time and generate a corresponding tension signal; and

[0011] The control mechanism is electrically connected to the drive mechanism, the clutch transmission mechanism and the tension detection mechanism respectively. The control mechanism is configured to receive the tension signal and control the clutch transmission mechanism to switch to the disengaged state when the tension value represented by the tension signal exceeds a preset threshold range.

[0012] In some embodiments, the take-up mechanism includes:

[0013] The cable retractor frame is fixedly installed inside the housing;

[0014] The drum is rotatably supported on the take-up frame by bearings. The shaft of the drum is fixedly connected to the driven part of the clutch transmission mechanism. The outer circumferential surface of the drum forms the working surface for winding the rope.

[0015] In some embodiments, the drive mechanism is a motor, the clutch transmission mechanism is an electromagnetic clutch, the driving part of the electromagnetic clutch is fixedly connected to the output shaft of the motor, and the driven part of the electromagnetic clutch is fixedly connected to the rotating shaft of the drum.

[0016] In some embodiments, the tension detection mechanism includes:

[0017] A guide wheel is rotatably mounted inside the housing and positioned on the rope path between the rope inlet and the drum, with the rope passing around the guide wheel;

[0018] A tension sensor, whose sensing end is connected to the axle of the guide wheel, is used to sense the pressure applied by the rope to the guide wheel and generate a corresponding tension signal.

[0019] In some embodiments, a rope inlet hole is provided on the wall panel of the box, and a brush ring is embedded in the inner circle of the rope inlet hole, with the bristles of the brush ring extending toward the central axis of the rope inlet hole.

[0020] In some embodiments, a power module is also included, which is installed at the bottom of the housing and electrically connected to the drive mechanism, the clutch transmission mechanism and the control mechanism. The power module is a removable battery pack.

[0021] In some embodiments, a rope end fixing member is provided on the winding surface of the drum, and the rope end fixing member is an elastic buckle or a rope clamp.

[0022] In some embodiments, an automatic rope arranger is also included, the automatic rope arranger comprising:

[0023] A reciprocating lead screw is arranged parallel to the drum and is connected to the rotating shaft of the drum for transmission.

[0024] The guide rope slider is threadedly fitted onto the reciprocating lead screw, and the guide rope slider has a guide rope hole for the rope to pass through.

[0025] In some embodiments, the control mechanism is further configured to: in rope release mode, adjust the output torque of the drive mechanism in real time according to the tension signal so that the tension value of the rope is maintained within a preset constant range.

[0026] A rope adaptive release and take-up control method, applied in any of the above-mentioned devices, includes the following steps:

[0027] Step S1: Secure the first end of the rope to the winding mechanism;

[0028] Step S2: Start the drive mechanism and control the clutch transmission mechanism to switch to the engaged state through the control mechanism, so that the drive mechanism drives the winding mechanism to rotate and wind up the rope.

[0029] Step S3: The tension of the rope is detected in real time by the tension detection mechanism and a tension signal is generated and transmitted to the control mechanism;

[0030] Step S4: The control mechanism compares the received real-time tension value with a preset threshold range;

[0031] Step S5: When the real-time tension value exceeds the preset threshold range, the control mechanism controls the clutch transmission mechanism to switch to the disengaged state and stops the drive mechanism to achieve overload protection.

[0032] Compared with the prior art, the rope adaptive release and take-up device and control method of the present invention have at least the following advantages:

[0033] By setting up a clutch transmission mechanism, the power connection between the drive mechanism and the winding mechanism can be cut off. When the tension detection mechanism detects abnormal tension fluctuations, the control mechanism can cut off the power transmission path in time, effectively avoiding motor overload burnout and rope overstretching damage caused by rope jamming or completion of retrieval, and significantly improving the safety and reliability of the device.

[0034] By using a tension detection mechanism to monitor rope tension in real time and a closed-loop feedback control mechanism, the device can adaptively adjust its working mode according to the actual stress state of the rope. During the rope winding process, the tension is kept within a reasonable range, ensuring that the rope is tightly and neatly arranged on the drum. This effectively solves the technical problem of loose and disordered rope loops in traditional devices.

[0035] The control mechanism is further equipped with a constant tension maintenance mode, which can dynamically adjust the output torque of the drive mechanism during rope release operations to keep the rope at a preset constant tension. It is particularly suitable for high-altitude operations or precision hoisting scenarios, effectively preventing safety hazards caused by rope slack and expanding the applicable scenarios of the device.

[0036] With the addition of an automatic rope arranger, the rope can be evenly spread across the entire axial length of the drum, forming multiple neat rope coils. This further improves the regularity of rope retrieval and the utilization rate of storage space, reduces manual sorting steps, and enhances operational efficiency.

[0037] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of a rope adaptive release and take-up device according to the present invention.

[0039] Figure 2 This is a schematic diagram of the internal structure of a rope adaptive release and take-up device according to the present invention.

[0040] Figure 3 This is a flowchart of a rope adaptive release and take-up control method according to the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Housing; 2. Rope inlet; 3. Rope reel frame; 4. Drum; 7. Motor; 9. Battery pack. Detailed Implementation

[0043] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0044] In the description of this invention, it should be clearly stated that the terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," "horizontal," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are merely for the convenience of describing this invention, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] like Figure 1-3 As shown, this embodiment of the invention provides a rope adaptive winding and unwinding device, including a housing 1, a drive mechanism, a winding mechanism, a clutch transmission mechanism, a tension detection mechanism, and a control mechanism. The drive mechanism is fixedly installed inside the housing 1, providing power to the device. The winding mechanism is rotatably supported inside the housing 1 and is used to wind up the rope. The clutch transmission mechanism is located between the power output end of the drive mechanism and the power input end of the winding mechanism, and can switch between an engaged state and an unengaged state, thereby controlling whether power is transmitted to the winding mechanism. The tension detection mechanism is installed on the contact path between the winding mechanism and the rope, sensing the tension change of the rope in real time and generating a corresponding tension signal. The control mechanism is electrically connected to the drive mechanism, the clutch transmission mechanism, and the tension detection mechanism, and is responsible for receiving the tension signal and making a judgment. When the rope begins to wind up, the operator fixes the rope end to the winding mechanism, starts the drive mechanism, and the control mechanism first controls the clutch transmission mechanism to switch to the engaged state, so that the power of the drive mechanism is transmitted to the winding mechanism through the clutch transmission mechanism, and the winding mechanism then rotates to start winding up the rope. During the rope winding process, the rope comes into contact with the tension detection mechanism, which continuously monitors the real-time tension value of the rope and transmits the signal to the control mechanism. The control mechanism has a preset set of suitable tension threshold ranges. When the real-time tension value is within this range, it indicates that the rope winding process is normal, the clutch transmission mechanism remains engaged, and the drive mechanism continues to operate. If an abnormal situation occurs with the rope, such as the rope being jammed by an external object causing a sharp increase in tension, or the rope being fully wound causing a sudden drop in tension below the lower threshold, the control mechanism, upon receiving a tension signal exceeding the preset threshold range, immediately sends a command to the clutch transmission mechanism to switch to the disengaged state, simultaneously stopping the drive mechanism. At this point, power transmission is cut off, the winding mechanism stops rotating, thus avoiding tensile damage to the rope due to excessive tension and preventing the drive mechanism from burning out due to continuous stalling. This tension feedback-based automatic clutch control mechanism allows the device to adaptively protect itself and the rope under various working conditions, significantly improving the safety and reliability of rope winding operations, while also ensuring that the rope loops maintain appropriate tension during winding, preventing loosening or misalignment.

[0047] The control mechanism is also equipped with a health status self-diagnosis module based on rope vibration spectrum analysis. This module analyzes the vibration spectrum characteristics generated by the rope during deployment and retraction, compares them with a pre-stored normal spectrum template, and generates a rope wear warning signal when the deviation exceeds a set threshold. This signal is then transmitted to a remote monitoring terminal via a wireless communication module. By introducing vibration spectrum analysis, the device can not only perform tension overload protection but also achieve predictive maintenance of the rope's health status. This significantly improves the device's intelligence and technological sophistication.

[0048] In some embodiments, the winding mechanism specifically comprises a take-up frame 3 and a drum 4. The take-up frame 3 is fixedly installed inside the housing 1 as a support structure. The drum 4 is rotatably supported on the opposite side wall of the take-up frame 3 via bearings. The shaft of the drum 4 is fixedly connected to the driven part of the clutch transmission mechanism, so when the clutch transmission mechanism is engaged, power can directly drive the drum 4 to rotate. The outer circumferential surface of the drum 4 serves as the working surface for winding the rope. After the rope end is fixed to the drum 4, the rope is wound around the circumferential surface of the drum 4 one turn at a time as the drum 4 rotates. This split-type structural design, combining the drum as an independent component with the take-up frame, ensures the stability of the drum and facilitates later maintenance and replacement; at the same time, the drum is supported by bearings, ensuring smooth rotation, reducing frictional resistance, and improving rope winding efficiency and extending service life.

[0049] The outer circumferential surface of the drum 4 is provided with a temperature-responsive anti-slip texture based on shape memory alloy. The anti-slip texture automatically protrudes when the ambient temperature is lower than a set threshold to increase the friction with the rope, and automatically flattens when the ambient temperature is higher than the set threshold to reduce rope wear.

[0050] The temperature-responsive anti-slip texture solves the problem of slippage caused by reduced friction between the rope and the drum in low-temperature environments, while also preventing excessive wear on the rope due to high-temperature conditions.

[0051] In some implementations, the drive mechanism specifically employs a motor 7, and the clutch transmission mechanism specifically employs an electromagnetic clutch. The output shaft of the motor 7 is fixedly connected to the driving part of the electromagnetic clutch, and the driven part of the electromagnetic clutch is fixedly connected to the rotating shaft of the drum 4. When the control mechanism energizes the electromagnetic clutch, the driving and driven parts engage, and the power of the motor 7 is directly transmitted to the drum 4 through the electromagnetic clutch, driving the drum 4 to rotate and wind up the rope. When the control mechanism detects abnormal tension and issues a disconnect command, the electromagnetic clutch is de-energized, the driving and driven parts separate, the power transmission is immediately interrupted, the motor 7 idles or stops, and the drum 4 gradually stops or immediately stops rotating under inertia. The electromagnetic clutch responds quickly and controls precisely, achieving millisecond-level power cut-off, thereby protecting the rope and motor at the moment of sudden tension change and preventing damage.

[0052] The motor 7 has a built-in rotor position sensor and temperature sensor based on the Hall effect. The control mechanism is configured to achieve sensorless vector control based on the rotor position sensor signal and adjust the motor output power in real time based on the temperature sensor signal. When the motor temperature exceeds the set threshold, it will automatically derate.

[0053] By employing sensorless vector control and temperature-adaptive derating, high-precision motor control and overheat protection are achieved, avoiding the operational interruptions caused by the simple shutdown of traditional motors under overload conditions.

[0054] In some embodiments, the tension detection mechanism specifically includes a guide wheel and a tension sensor. The guide wheel is rotatably mounted inside the housing 1, located on the rope path between the rope inlet 2 and the drum 4. After the rope enters the housing through the rope inlet 2, it first passes over the guide wheel and then is fixed to the drum 4. The axle of the guide wheel is connected to the sensing end of the tension sensor. When the rope passes over the guide wheel, the pressure exerted by the rope on the guide wheel is sensed by the tension sensor in real time and converted into a corresponding tension signal, which is then transmitted to the control mechanism. This indirect measurement method avoids direct friction between the sensor and the rope, extending the sensor's lifespan. Simultaneously, the guide wheel ensures rope directional stability, making tension measurement more accurate and reliable.

[0055] The guide wheel's rim surface is provided with a micro-deformation detection layer based on the capacitance effect. The micro-deformation detection layer works in conjunction with the tension sensor. When the pressure distribution between the rope and the guide wheel is uneven, a compensation signal is generated to dynamically correct the tension sensor's measurement value and eliminate measurement errors caused by rope skewing.

[0056] By introducing a capacitive micro-deformation detection layer, real-time sensing of rope deviation and dynamic correction of tension measurement are achieved, solving the measurement error problem caused by rope deviation in traditional single-point tension sensors.

[0057] In some embodiments, a rope inlet hole 2 is provided on the wall panel of the housing 1. A brush ring is embedded in the inner ring of the rope inlet hole 2, and the bristles of the brush ring extend towards the central axis of the rope inlet hole 2. When the rope passes through the rope inlet hole and enters the housing, the bristles of the brush ring make close contact with the surface of the rope, effectively removing foreign objects such as mud, dust, and oil adhering to the rope. This cleaning effect not only keeps the inside of the housing clean and prevents foreign objects from entering the drum area and causing wear or jamming, but also extends the service life of the rope. At the same time, the cleaned rope fits more tightly when wound, which helps to form a regular rope loop.

[0058] The bristles of the brush ring are made of conductive fiber material and are electrically connected to the static elimination circuit. They are used to remove the static charge accumulated on the surface of the rope when the rope passes through the rope inlet. The static elimination circuit is also connected to a static monitoring module, which issues a static warning through a control mechanism when the detected static voltage exceeds a set threshold.

[0059] By simultaneously adding static elimination function to the cleaning brush, the problem of static electricity accumulation caused by friction during high-speed rope winding and unwinding is solved, making it particularly suitable for safe operation in flammable and explosive environments.

[0060] In some embodiments, the device further includes a power module installed at the bottom of the housing 1 and electrically connected to the drive mechanism, clutch transmission mechanism, and control mechanism, providing operating power to each component. Specifically, the power module uses a detachable battery pack 9, freeing the device from dependence on mains power and enabling independent operation in environments without power, such as in the field or construction sites. The battery pack is connected to the bottom of the housing via a slot structure, allowing for quick assembly and disassembly, easy carrying of spare batteries, and continuous long-term operation, greatly improving the portability and practicality of the device.

[0061] The battery pack 9 integrates a battery health status monitoring unit based on electrochemical impedance spectroscopy. The monitoring unit periodically performs electrochemical impedance spectroscopy tests on the battery to analyze the degree of battery aging and remaining lifespan, and issues a replacement prompt through the control mechanism before the battery performance degrades to a set threshold.

[0062] By introducing battery health status monitoring, predictive maintenance of the remaining battery life is achieved, avoiding work interruptions due to sudden battery failure.

[0063] In some embodiments, a rope end fixing member, which is an elastic buckle or a rope clamp, is provided on the winding surface of the drum 4. When starting to wind up the rope, the operator only needs to press the end of the rope into the elastic buckle or clamp it into the rope clamp to achieve quick fixing, without the need for knotting or using auxiliary tools. This fixing method is firm and reliable, preventing the rope from slipping off the moment the drum starts, while also facilitating quick release of the rope end after winding up, thus improving operational efficiency.

[0064] The rope end fixing component is integrated with an electronic tag based on radio frequency identification. A radio frequency reading antenna is set in the corresponding position inside the housing 1 for automatically identifying the rope's identity information when the rope end is fixed. The control mechanism retrieves the pre-stored tension threshold parameters and maintenance records of the corresponding rope based on the rope's identity information.

[0065] By assigning a unique electronic identity to each rope, full lifecycle management and adaptive parameter setting of the ropes are achieved, avoiding errors that may be caused by manual parameter setting.

[0066] In some embodiments, the device also includes an automatic rope arranger. The automatic rope arranger consists of a reciprocating screw and a rope guide slider. The reciprocating screw is arranged parallel to the drum 4 and is linked to the shaft of the drum 4 through a gear transmission mechanism; the rope guide slider is threaded onto the reciprocating screw, and the slider has a rope guide hole for the rope to pass through. When the winding mechanism rotates, the reciprocating screw rotates synchronously, driving the rope guide slider to reciprocate along the axis of the drum. After the rope enters from the rope inlet, it first passes through the rope guide hole of the rope guide slider and is then fixed to the drum. Therefore, while the drum rotates, the rope guide slider guides the rope to be evenly spread throughout the axial length of the entire drum, forming multiple neat rope coils. This automatic rope arrangement structure completely solves the problem of single-point accumulation and uneven winding of the rope on the drum, ensuring the regularity of the rope coils after each winding, which is convenient for subsequent storage and use.

[0067] The guide rope slider is equipped with a rope posture detection unit based on machine vision. The detection unit includes a miniature camera and an image processor, which is used to acquire real-time posture images of the rope in the guide rope hole, analyze the torsion angle and skew state of the rope, and when the rope torsion exceeds the set threshold, the control mechanism controls the drum to rotate briefly in the opposite direction to release the torsional stress of the rope.

[0068] By introducing a visual detection unit, real-time perception and active release of the rope's torsion state are achieved, solving the problems of knotting and tangling caused by the accumulation of torsional stress during rope retraction and release.

[0069] In some implementations, the control mechanism is also equipped with a constant tension maintenance function in rope release mode. When the rope needs to be released (i.e., released), the control mechanism dynamically adjusts the output torque of motor 7 through pulse width modulation or other adjustment methods based on the tension signal fed back by the tension sensor in real time. When the detected tension value is lower than a preset constant range, the control mechanism appropriately increases the output torque of the motor, causing the drum to rotate in the opposite direction to tighten the rope and increase the tension; when the tension value is higher than the constant range, the torque is reduced or the drum is allowed to rotate passively under the pull of the rope, thereby maintaining the rope tension near a preset constant value. This function is particularly suitable for scenarios such as high-altitude operations and heavy object hoisting that require the rope to maintain appropriate tension, effectively preventing swaying or disengagement caused by rope slack, and significantly improving operational safety and stability.

[0070] The control mechanism is also equipped with an adaptive tension control algorithm based on a fuzzy neural network. The algorithm takes rope tension deviation, tension change rate, rope release length, and drum rotation speed as inputs, and after fuzzification processing and neural network inference, outputs the torque correction amount of the drive mechanism to achieve adaptive constant tension control for ropes of different materials and diameters.

[0071] By introducing a multi-input parameter intelligent control algorithm, the problems of difficult parameter tuning and poor adaptability of traditional PID control when facing different rope characteristics are solved, and adaptive constant tension control for various ropes is realized.

[0072] This invention also provides a rope adaptive release and take-up control method, which is applied to any of the aforementioned devices. The specific control steps are as follows: First, the head end of the rope is fixed to the take-up mechanism; then, the drive mechanism is started, and the clutch transmission mechanism is switched to the engaged state by the control mechanism, so that the power of the drive mechanism is transmitted to the take-up mechanism, driving the drum to rotate and begin rope take-up; during the take-up process, the tension detection mechanism detects the rope tension value in real time and generates a corresponding tension signal, which is transmitted to the control mechanism; the control mechanism compares the received real-time tension value with an internally preset threshold range; when the real-time tension value exceeds the preset threshold range (e.g., too high or too low), the control mechanism immediately controls the clutch transmission mechanism to switch to the disengaged state and simultaneously stops the drive mechanism, thereby cutting off power transmission and achieving overload protection. This method, through closed-loop feedback control, achieves intelligent monitoring and automatic protection of the rope take-up process, avoiding safety hazards caused by untimely manual intervention, ensuring that rope release and take-up operations are always carried out within a safe tension range, and greatly improving the automation level and reliability of the device.

[0073] The method also includes step S6: the control mechanism simultaneously records the time of the overload event, the peak tension, and the rope identification information, and uploads them to the cloud server via the wireless communication module; the cloud server performs big data analysis based on the overload event data from multiple devices, identifies high-risk operation scenarios and rope types, generates regional safety warning information, and pushes it to relevant devices.

[0074] By aggregating overload event data from distributed devices to the cloud for big data analysis, a leap from single-device protection to regional security early warning has been achieved.

[0075] This invention integrates a self-diagnostic module for rope health status based on rope vibration spectrum analysis into the control mechanism. This module analyzes the vibration spectrum characteristics generated by the rope during deployment and retraction, compares them with a pre-stored normal spectrum template, and generates a rope wear warning signal when the deviation of the spectrum characteristics exceeds a set threshold. This technology enables the device not only to provide tension overload protection but also to achieve predictive maintenance of the rope's health status, avoiding safety accidents caused by rope fatigue fracture.

[0076] Existing technologies have attempted to apply shape memory alloys to rope guiding devices, utilizing the heat generated by friction between the rope and the extension component to trigger deformation of the shape memory alloy, thereby preventing the rope from contacting sharp edges. However, this technical solution has the following drawbacks: First, it relies on the continuous movement of the rope to generate frictional heat; deformation cannot be triggered when the rope is stationary or moving at low speed. Second, the magnitude of frictional heat is related to factors such as the contact pressure and movement speed of the rope, making precise control difficult. Finally, this solution addresses the contact problem between the rope and the fixed structure, but does not address the dynamic adaptation of frictional forces between the rope and the rotating drum.

[0077] This invention features temperature-responsive anti-slip textures on the outer circumferential surface of the drum. These textures automatically rise when the ambient temperature is below a set threshold to increase friction with the rope, and automatically flatten when the ambient temperature is above the set threshold to reduce rope wear. This material innovation solves the problem of slippage caused by decreased friction between the rope and the drum in low-temperature environments, while simultaneously preventing excessive wear on the rope due to the textures in high-temperature environments, significantly improving the device's environmental adaptability.

[0078] The outer circumferential surface of the drum 4 is provided with temperature-responsive anti-slip textures based on shape memory alloy. These anti-slip textures are made of shape memory alloy material, and their protrusion height adaptively adjusts with changes in ambient temperature. Specifically, the shape memory alloy is configured to have a two-way memory effect, and its phase transformation temperature range is set to match the temperature threshold of the working environment. When the ambient temperature is below a first set threshold (e.g., -10°C), the shape memory alloy undergoes a martensitic phase transformation, and the anti-slip textures automatically protrude from the drum surface, increasing the friction between the anti-slip textures and the rope, compensating for the decrease in friction caused by rope hardening in low-temperature environments. When the ambient temperature is above a second set threshold (e.g., 35°C), the shape memory alloy undergoes an austenitic phase transformation, and the anti-slip textures automatically flatten back onto the drum surface, reducing frictional wear on the rope.

[0079] It should be noted that the anti-slip texture in this embodiment responds to changes in ambient temperature, rather than to frictional heat between the rope and the drum. The phase transition triggering condition of the shape memory alloy is determined by ambient temperature and is independent of the rope's motion state, contact pressure, and frictional heat generation. This setting is fundamentally different from existing technologies that utilize frictional heat to trigger shape memory alloy deformation: in existing technologies, the deformation of shape memory alloys depends on the frictional heat generated by rope movement, which is a passive response mechanism. In contrast, this application directly triggers the phase transition of the shape memory alloy through ambient temperature, achieving active adjustment of the anti-slip texture protrusion, maintaining stable frictional characteristics without relying on continuous rope movement.

[0080] The degree of protrusion of the anti-slip texture is determined only by the ambient temperature, without relying on the continuous movement of the rope or frictional heat generation, and can maintain stable frictional characteristics even when the rope is stationary.

[0081] By rationally setting the phase transformation temperature range of the shape memory alloy, the anti-slip texture automatically bulges up in low-temperature environments to compensate for friction loss, and automatically flattens out in high-temperature environments to reduce wear, thus achieving adaptive adjustment of the friction characteristics of the drum surface.

[0082] Compared with existing technologies that rely on frictional heat triggering, the ambient temperature response mechanism of this invention has higher reliability and control precision, avoiding triggering uncertainty caused by changes in the rope's motion state.

[0083] This invention incorporates a micro-deformation detection layer based on the capacitance effect on the rim surface of a guide wheel. This layer is electrically connected to a tension sensor and is used to detect the pressure distribution between the rope and the guide wheel, generating a compensation signal. Working in conjunction with the tension sensor, this detection layer generates a compensation signal when the pressure distribution between the rope and the guide wheel is uneven, dynamically correcting the tension sensor's measurements. This eliminates measurement errors caused by rope misalignment, significantly improving the accuracy and reliability of tension detection.

[0084] This invention integrates a radio frequency identification (RFID)-based electronic tag into the rope end fixing component. The RFID antenna automatically identifies the rope's identity information, and the control mechanism retrieves pre-stored tension threshold parameters and maintenance records for the corresponding rope based on this information. This technology enables full lifecycle management of the rope and adaptive parameter setting, avoiding errors that may result from manual parameter setting and improving the device's ease of operation and intelligence.

[0085] This invention employs an adaptive tension control algorithm based on a fuzzy neural network in constant tension control. This algorithm takes rope tension deviation, tension change rate, rope release length, and drum rotation speed as inputs. After fuzzification processing and neural network inference, it outputs the torque correction amount of the drive mechanism, achieving adaptive constant tension control for ropes of different materials and diameters. This solves the problems of difficult parameter tuning and poor adaptability of traditional PID control when facing different rope characteristics.

[0086] This invention adds a cloud-based collaborative step to the control method. The control mechanism records the time, peak tension, and rope identification information of overload events, and uploads this data to a cloud server via a wireless communication module. The cloud server performs big data analysis based on overload event data from multiple devices, identifies high-risk operation scenarios and rope types, generates regional safety warning information, and pushes it to relevant devices. This cloud-based collaborative safety management solution achieves a leap from single-device protection to regional safety warnings, significantly improving the overall level of operational safety.

[0087] The following are specific embodiments of the present invention:

[0088] Example 1

[0089] like Figures 1-3 As shown, the present invention provides a rope adaptive release and take-up device, which aims to solve the technical problem of safe and orderly recovery of long ropes under complex working conditions.

[0090] The device includes a hollow housing 1, which serves as the supporting base and protective shell for the entire device. It is made of a lightweight material (such as reinforced engineering plastics or aluminum alloy) with sufficient mechanical strength. The interior of housing 1 forms a relatively enclosed storage space for installing and protecting the internal functional components.

[0091] A drive mechanism is fixedly installed at the rear of the housing 1. In this embodiment, the drive mechanism is preferably a DC geared motor 7. The motor 7 is fixed to the bottom plate of the housing 1 by a motor mounting bracket (not shown in the figure) and fasteners to ensure its stable operation and low noise.

[0092] Inside the housing 1, at the front, a take-up frame 3 is fixedly installed. The drum 4 is rotatably supported on the opposite side wall of the take-up frame 3 by bearings, and the outer circumferential surface of the drum 4 forms the working surface for winding the rope.

[0093] The core improvement of this invention lies in the introduction of a clutch transmission mechanism. This clutch transmission mechanism is located between the power output shaft of the motor 7 and the rotating shaft of the drum 4.

[0094] In a preferred embodiment, the clutch transmission mechanism is an electromagnetic clutch, with its driving part fixedly connected to the output shaft of the motor 7 and its driven part fixedly connected to the rotating shaft of the drum 4. When the electromagnetic clutch is energized, the driving part and the driven part engage, achieving power engagement; when the electromagnetic clutch is de-energized, the driving part and the driven part disengage, achieving power disconnection. To achieve quick and reliable fixing of the rope end, a rope end fixing component is provided on the winding surface of the drum 4. This rope end fixing component can be a buckle with an elastic locking function or a rope clamp with a clamping mechanism. The operator only needs to insert or fasten the rope end into it to achieve quick locking and prevent the rope end from coming off when the drum is spinning idly.

[0095] A rope inlet hole 2 is provided on the front side wall panel of the housing 1. The position of the rope inlet hole 2 corresponds to the winding area of ​​the drum 4, ensuring that the rope can enter the housing at a smooth angle. A brush ring composed of dense, soft bristles is embedded in the inner ring of the rope inlet hole 2, and the rope passes through the center of the brush. During the rope winding process, mud, dust, and other foreign objects adhering to the rope surface are blocked and removed by the brush bristles, achieving a cleaning effect and effectively extending the rope's service life.

[0096] Another key improvement of this invention lies in the inclusion of a tension detection mechanism. This mechanism includes a tension sensor installed inside the rope inlet 2, on the path of the rope after it enters the housing and before it contacts the drum 4. Specifically, a guide wheel can be installed on the rope path, rotatably mounted inside the housing 1 via an axle, and the axle of the guide wheel is connected to the sensing end of the tension sensor. As the rope passes over the guide wheel, the pressure it exerts on the guide wheel is sensed in real time by the tension sensor, thereby generating an electrical signal characterizing the real-time tension value of the rope.

[0097] The control mechanism (not shown in the figure) is specifically represented by a PCB control circuit board, which is fixedly installed in an independent chamber inside the housing 1 to avoid dust intrusion. This control circuit board is electrically connected to the motor 7, the electromagnetic clutch, and the tension sensor. The control circuit board integrates a microcontroller (MCU) and corresponding drive circuits. The microcontroller is configured to: receive the tension signal sent by the tension sensor at a preset frequency; compare the received real-time tension value with a preset threshold range (including an upper threshold and a lower threshold) stored internally; when the real-time tension value exceeds the preset threshold range (for example, the rope is stuck, causing a sudden increase in tension, or the rope has been fully retrieved, causing a sudden decrease in tension), the microcontroller sends a disconnect control signal to the electromagnetic clutch to de-energize and disengage the electromagnetic clutch, and simultaneously sends a stop signal to the motor 7 to stop the motor 7 from operating, thereby achieving overload protection for the rope and the motor.

[0098] At the bottom of the housing 1, a removable battery pack 9 is provided. This battery pack 9 is electrically connected to the motor 7, the electromagnetic clutch, and the control circuit board, providing them with operating power. The battery pack 9 is preferably a rechargeable lithium battery pack, and it is connected to the bottom of the housing 1 via a slot-type structure, which facilitates quick replacement and continuous outdoor operation.

[0099] When the rope winding operation begins, the operator inserts the rope end into the housing 1 through the rope inlet 2, passes it around the guide wheel, and secures it to the rope end fixing piece on the drum 4. The start device activates, the control circuit board engages the electromagnetic clutch, and starts the motor 7. The motor 7 drives the drum 4 to rotate, and the rope winds around the drum 4 one turn at a time. During the winding process, a tension sensor monitors the rope tension in real time. If abnormal tension fluctuations are detected, the system automatically cuts off power and issues an alarm. After winding is complete, the operator can remove the drum 4 with the rope loops or the entire winding frame 3 from the side of the housing 1 (designed as an openable side door) for easy handling and storage.

[0100] Example 2

[0101] This embodiment further optimizes upon embodiment 1. To improve the uniformity of rope distribution on drum 4 and prevent rope from concentrating in a certain area and bulging, this embodiment improves the winding mechanism. The winding mechanism also includes an automatic rope arranger. This automatic rope arranger includes a reciprocating screw parallel to drum 4 and a rope guide slider threaded onto the reciprocating screw. The reciprocating screw is linked to the shaft of drum 4 via a gear transmission mechanism (not shown in the figure). When drum 4 rotates, the reciprocating screw rotates synchronously, driving the rope guide slider to reciprocate along the axial direction of drum 4. The rope guide slider has a rope guide hole, through which the rope passes before being fixed to drum 4. Thus, while drum 4 rotates, the rope guide slider guides the rope to evenly spread across the entire axial length of drum 4, forming multiple neat rope coils.

[0102] Example 3

[0103] This embodiment further optimizes the control strategy based on Embodiment 1. A constant tension maintenance mode is also configured in the control mechanism. When the device is used for rope release operations, the microcontroller dynamically adjusts the output torque of motor 7 using pulse width modulation (PWM) technology based on the feedback signal from the tension sensor, ensuring that the rope maintains a constant tension value (e.g., near a preset lower threshold) throughout the release process. This control method is particularly suitable for high-altitude operations or hoisting scenarios requiring moderate rope tension, effectively preventing safety hazards caused by rope slack.

[0104] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the devices, apparatuses, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0105] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A rope adaptive release and take-up device, characterized in that, include: Box (1); The drive mechanism is fixedly installed inside the housing (1); A winding mechanism is rotatably supported within the housing (1); A clutch transmission mechanism is disposed between the power output end of the drive mechanism and the power input end of the winding mechanism, and is used to switch between the engaged state and the disengaged state. A tension detection mechanism is installed on the contact path between the winding mechanism and the rope to detect the tension value of the rope in real time and generate a corresponding tension signal. as well as The control mechanism is electrically connected to the drive mechanism, the clutch transmission mechanism and the tension detection mechanism respectively. The control mechanism is configured to receive the tension signal and control the clutch transmission mechanism to switch to the disengaged state when the tension value represented by the tension signal exceeds a preset threshold range.

2. The rope adaptive release and take-up device according to claim 1, characterized in that, The winding mechanism includes: The take-up frame (3) is fixedly installed inside the housing (1); The drum (4) is rotatably supported on the take-up frame (3) by bearings. The shaft of the drum (4) is fixedly connected to the driven part of the clutch transmission mechanism. The outer circumferential surface of the drum (4) forms the working surface for winding the rope.

3. The rope adaptive release and take-up device according to claim 2, characterized in that, The driving mechanism is a motor (7), the clutch transmission mechanism is an electromagnetic clutch, the driving part of the electromagnetic clutch is fixedly connected to the output shaft of the motor (7), and the driven part of the electromagnetic clutch is fixedly connected to the rotating shaft of the drum (4).

4. The rope adaptive release and take-up device according to claim 1, characterized in that, The tension detection mechanism includes: The guide wheel is rotatably mounted inside the housing (1) and is located on the rope path between the rope inlet (2) and the drum (4), with the rope passing around the guide wheel; A tension sensor, whose sensing end is connected to the axle of the guide wheel, is used to sense the pressure applied by the rope to the guide wheel and generate a corresponding tension signal.

5. The rope adaptive release and take-up device according to claim 1, characterized in that, The wall panel of the box (1) is provided with a rope inlet hole (2), and a brush ring is embedded in the inner ring of the rope inlet hole (2), with the bristles of the brush ring extending toward the central axis of the rope inlet hole (2).

6. The rope adaptive release and take-up device according to claim 1, characterized in that, It also includes a power module, which is installed at the bottom of the housing (1) and electrically connected to the drive mechanism, the clutch transmission mechanism and the control mechanism. The power module is a detachable battery pack (9).

7. The rope adaptive release and take-up device according to claim 2, characterized in that, The winding surface of the drum (4) is provided with a rope end fixing component, which is an elastic buckle or a rope clamp.

8. The rope adaptive release and take-up device according to claim 1, characterized in that, It also includes an automatic rope arranger, which comprises: The reciprocating lead screw is arranged parallel to the drum (4) and is connected to the rotating shaft of the drum (4) via a transmission. The guide rope slider is threadedly fitted onto the reciprocating lead screw, and the guide rope slider has a guide rope hole for the rope to pass through.

9. The rope adaptive release and take-up device according to any one of claims 1 to 8, characterized in that, The control mechanism is further configured to: in rope release mode, adjust the output torque of the drive mechanism in real time according to the tension signal so that the tension value of the rope is maintained within a preset constant range.

10. A rope adaptive release and retraction control method, applied in the device as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Step S1: Secure the first end of the rope to the winding mechanism; Step S2: Start the drive mechanism and control the clutch transmission mechanism to switch to the engaged state through the control mechanism, so that the drive mechanism drives the winding mechanism to rotate and wind up the rope. Step S3: The tension of the rope is detected in real time by the tension detection mechanism and a tension signal is generated and transmitted to the control mechanism; Step S4: The control mechanism compares the received real-time tension value with a preset threshold range; Step S5: When the real-time tension value exceeds the preset threshold range, the control mechanism controls the clutch transmission mechanism to switch to the disengaged state and stops the drive mechanism to achieve overload protection.

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