Meter counting type take-up and pay-off winch and control method thereof

Abstract

The invention discloses a meter counting type take-up and pay-off winch and a control method thereof.The meter counting type take-up and pay-off winch comprises a support, a winding assembly, a meter counting assembly, a sliding assembly, a driving component and a controller, the meter counting assembly and the driving component are both electrically connected with the controller, the winding assembly is installed on the support and used for winding, taking up and paying off a cable, and the first end of the winding assembly is connected with the driving component; the second end of the winding assembly is provided with a first synchronous wheel, the meter counting assembly is installed on the support through a sliding assembly, one end of the sliding assembly is provided with a second synchronous wheel, the second synchronous wheel is connected with the first synchronous wheel through a synchronous belt, the sliding assembly is used for driving the meter counting assembly to reciprocate in the axis direction of the winding assembly, and a cable penetrates through the meter counting assembly. The meter counting assembly is used for detecting the winding and unwinding length of the cable; according to the scheme, through structures such as the support, the winding assembly, the meter counting assembly, the sliding assembly, the driving part and the controller, integration of cable winding and unwinding and length measurement is achieved, the structure is compact, and the function integration degree is high.

Description

Technical Field

[0001] The present application relates to the technical field of winches, and in particular to a meter-counting type reel-and-release winch and a control method thereof. Background Art

[0002] A tethered drone is a drone that is connected to the ground by ropes or cables, and can hover at a certain height and maintain a fixed position. It uses ground power as a power source instead of traditional lithium batteries through tethered cables, thus having the ability to hover for a long time.

[0003] The winch can manage the ropes or cables of the tethered drone by retracting and releasing the wires, and ensure stable transmission of energy and data as well as flight safety. When retracting and releasing the cables, the existing winches usually have difficulty in accurately controlling the flight altitude of the drone. Therefore, a meter-based retractable winch that can calculate the length of the rope or cable is needed. Summary of the invention

[0004] The main purpose of this application is to propose a meter-meter-type retractable line winch and a control method thereof, aiming to solve the problem that the existing winch is difficult to accurately control the flight altitude of the UAV.

[0005] To achieve the above-mentioned purpose, the meter-counting type wire retracting and releasing winch proposed in the present application includes: a bracket, a winding assembly, a meter-counting assembly, a sliding assembly, a driving component and a controller, the meter-counting assembly and the driving component are both electrically connected to the controller, the winding assembly is installed on the bracket, the winding assembly is used to wind and retract the cable, the first end of the winding assembly is connected to the driving component, the second end of the winding assembly is installed with a first synchronous wheel, the meter-counting assembly is installed on the bracket through a sliding assembly, one end of the sliding assembly is installed with a second synchronous wheel, the second synchronous wheel is connected to the first synchronous wheel through a synchronous belt, the sliding assembly is used to drive the meter-counting assembly to reciprocate along the axial direction of the winding assembly, the cable passes through the meter-counting assembly, and the meter-counting assembly is used to detect the length of the cable retracted and released.

[0006] Optionally, the bracket includes a first support plate and a second support plate arranged in parallel, and the first support plate and the second support plate are fixedly connected by a plurality of support rods;

[0007] The driving component is fixedly mounted on the first supporting plate.

[0008] Optionally, the winding assembly includes two rotating disks, which are rotatably mounted on the first supporting plate and the second supporting plate respectively, and the two rotating disks are fixedly connected by a plurality of winding rods evenly distributed around the axis of the rotating disk;

[0009] The rotating disk at the first end of the winding assembly is fixedly connected to the output shaft of the driving component, and the rotating disk at the second end of the winding assembly is coaxially fixedly connected to the first synchronous wheel.

[0010] Optionally, a one-way damper is installed on the second support plate, and the one-way damper is connected to the rotating shaft of the corresponding turntable.

[0011] Optionally, an electric slip ring is installed on the second support plate via a connecting frame, and the electric slip ring is connected to the cable.

[0012] Optionally, the sliding assembly includes two bearing plates, which are respectively mounted on the first support plate and the second support plate, two guide rods and a transmission shaft parallel to each other are arranged between the two bearing plates, two ends of the two guide rods are respectively fixedly connected to the two bearing plates, two ends of the transmission shaft are respectively rotatably connected to the two bearing plates, one end of the transmission shaft is fixedly connected to the second synchronous wheel, a slider is also provided between the two bearing plates, the two guide rods and the transmission shaft both pass through the slider, the slider is slidably connected to the two guide rods, and the transmission shaft is used to drive the slider to reciprocate along the guide rods.

[0013] Optionally, two interlaced spiral grooves are provided on the side of the transmission shaft along the axis, and both ends of the two spiral grooves are connected. A crescent pin perpendicular to the transmission shaft is provided in the slider, and the crescent pin is rotatably connected to the slider, and the crescent pin is engaged with the spiral groove.

[0014] Optionally, the meter-counting assembly includes two mounting plates, the two mounting plates are symmetrically mounted on both sides of the slider, a meter-counting wheel is arranged in the middle of the two mounting plates, the cable is passed around the meter-counting wheel, both ends of the meter-counting wheel are rotatably connected to the two mounting plates respectively, a rotary encoder is mounted on one of the mounting plates, the rotating shaft of the meter-counting wheel is connected to the rotary encoder, and the rotary encoder is electrically connected to the controller.

[0015] Optionally, two wire-passing racks are further provided between the two mounting plates, wherein one of the wire-passing racks faces the winding assembly, and the other wire-passing rack faces upwards;

[0016] The wire passing rack comprises a wire passing block, a wire passing hole is provided on the wire passing block, at least three rollers are arranged in the wire passing hole, the rollers are rotatably mounted on the wire passing block, and a plurality of the rollers form a wire passing ring, and the wire passing ring is used for the cables to pass through.

[0017] A control method for a meter-counting type retractable and pay-out winch, using the meter-counting type retractable and pay-out winch, the control method comprising:

[0018] The controller system is initialized. After the controller is powered on, it performs a self-test to check whether the electrical connections with the drive components, meter-counting components and other components are normal. At the same time, the counting of the meter-counting components is initialized;

[0019] The wire reeling and unwinding operation starts, and the controller receives the wire reeling or unwinding command input from the outside. According to the received command, the controller sends a corresponding control signal to the driving component, and the driving component starts and drives the winding assembly to rotate;

[0020] The sliding assembly is started synchronously. When the winding assembly rotates, the first synchronous wheel rotates accordingly, and the second synchronous wheel at one end of the sliding assembly is driven to rotate through the synchronous belt. The second synchronous wheel drives the winding assembly to start, and drives the meter counting assembly to reciprocate along the axis direction of the winding assembly.

[0021] Cable retraction and extension length detection: the meter-counting component detects the length of the cable passing through, converts the detected data signal into an electrical signal, and sends the electrical signal to the controller;

[0022] Cable retracting and releasing length monitoring and control: the controller monitors the cable length measured by the metering component in real time and displays the measurement result on the operation panel. When the cable retracting and releasing length reaches the preset value, the controller sends a stop signal to the driving component, the driving component stops working, and the winding component stops rotating;

[0023] Abnormal handling: if the driving component detects that the load is too large, it sends an overload signal to the controller. After receiving the signal, the controller immediately stops the driving component from working. If the controller detects that the signal of the rotary encoder is abnormal, it sends an alarm signal.

[0024] The technical solution of the present application is provided by setting a bracket, a winding assembly, a meter counting assembly, a sliding assembly, a driving component and a controller. The meter counting assembly and the driving component are electrically connected to the controller. The winding assembly is installed on the bracket. The winding assembly is used to wind and retract the cable. The first end of the winding assembly is connected to the driving component. The second end of the winding assembly is installed with a first synchronous wheel. The meter counting assembly is installed on the bracket through the sliding assembly. One end of the sliding assembly is installed with a second synchronous wheel. The second synchronous wheel is connected to the first synchronous wheel through a synchronous belt. The sliding assembly is used to drive the meter counting assembly to move back and forth along the axis direction of the winding assembly. The cable passes through the meter counting assembly. The meter counting assembly is used to detect the length of the cable retracted and released. The driving component receives a signal from the controller and starts to work, driving the winding assembly to rotate, so as to realize the retraction and release of the cable. When the winding assembly rotates, the first synchronous wheel rotates accordingly, and the second synchronous wheel is driven to rotate through the synchronous belt, so that the sliding assembly works. The sliding assembly drives the meter-counting assembly to move back and forth along the axis direction of the winding assembly. During this process, the meter-counting assembly detects the length of the cable retracted and released, and feeds back the data to the controller. This solution realizes the integration of cable retraction and release and length measurement, with a compact structure and high functional integration. Through synchronous belt transmission and sliding assemblies, it is ensured that the meter-counting assembly can accurately follow the retraction and release position of the cable for measurement, thereby improving the accuracy of length measurement. In addition, compared with the prior art, it has a simple structure and a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the meter-type retractable winch for this application;

[0027] Figure 2 This is a schematic diagram of the disassembled structure of the winding assembly in the meter-type retractable winch of the present application;

[0028] Figure 3 This is a schematic diagram of the disassembled structure of the meter-counting assembly in the meter-counting type retractable winch of the present application;

[0029] Figure 4 This is an enlarged schematic diagram of the structure of the transmission shaft in the meter-meter-type retractable winch of the present application.

[0030] Description of Figure Numbers:

[0031] 1. Bracket; 101. First support plate; 102. Second support plate; 103. Support rod; 2. Winding assembly; 201. Turntable; 202. Winding rod; 3. Metering assembly; 310. Mounting plate; 320. Metering wheel; 330. Rotary encoder; 340. Connecting rod; 350. Wire rack; 351. Wire block; 352. Wire hole; 353. Roller; 4. Sliding assembly; 410. Loading plate; 420. Guide rod; 430. Transmission shaft; 431. Spiral slide; 440. Sliding block; 441. Linear bearing; 442. Crescent pin; 443. Fixed block; 5. Driving component; 6. First synchronous wheel; 7. Second synchronous wheel; 8. One-way damper; 9. Electric slip ring; 10. Connecting frame.

[0032] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0037] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0038] A tethered drone is a drone that is connected to the ground by ropes or cables, and can hover at a certain height and maintain a fixed position. It uses ground power as a power source instead of traditional lithium batteries through tethered cables, thus having the ability to hover for a long time.

[0039] The winch can manage the ropes or cables of the tethered drone by retracting and releasing the wires, and ensure stable transmission of energy and data as well as flight safety. When retracting and releasing the cables, the existing winches usually have difficulty in accurately controlling the flight altitude of the drone. Therefore, a meter-based retractable winch that can calculate the length of the rope or cable is needed.

[0040] In view of this, the present application proposes a meter-counting type wire-reeling and -releasing winch and a control method thereof.

[0041] In the examples of this application, refer to Figures 1 to 4The meter-counting type retractable winch comprises: a bracket 1, a winding assembly 2, a meter-counting assembly 3, a sliding assembly 4, a driving component 5 and a controller. The meter-counting assembly 3 and the driving component 5 are both electrically connected to the controller. The winding assembly 2 is mounted on the bracket 1. The winding assembly 2 is used to wind and retract the cable. The first end of the winding assembly 2 is connected to the driving component 5. The second end of the winding assembly 2 is equipped with a first synchronous wheel 6. The meter-counting assembly 3 is mounted on the bracket 1 through the sliding assembly 4. A second synchronous wheel 7 is installed at one end of the sliding assembly 4. The second synchronous wheel 7 is connected to the first synchronous wheel 6 through a synchronous belt. The sliding assembly 4 is used to drive the meter-counting assembly 3 to reciprocate along the axis direction of the winding assembly 2. The cable passes through the meter-counting assembly 3. The meter-counting assembly 3 is used to detect the length of the cable retracted and released.

[0042] Specifically, the driving component 5 is used to provide power to drive the winding assembly 2, and the synchronous belt transmission transmits the rotation of the winding assembly 2 to the sliding assembly 4 to realize the movement of the metering assembly 3. The metering assembly 3 detects the movement of the cable by contacting or sensing the cable, and then calculates the retracted length. The controller is the core to coordinate the work of the driving component 5 and the metering assembly 3; wherein, the driving component 5 is a servo motor, which is mainly composed of a motor body, an encoder and a driver (servo driver). The controller sends the calculated control signal to the servo driver, and the servo driver accurately controls the motor according to the received signal. The encoder is installed on the shaft of the motor, and its function is to monitor the motor's speed, position and other operating states in real time, and feed back this information to the servo driver. The servo driver will compare the actual value fed back by the encoder with the target value set by the controller. If there is a deviation, the servo driver will automatically adjust the output current and voltage to change the motor's speed and torque, so that the actual operating state of the motor approaches the target value, forming a closed-loop control system, thereby realizing accurate control of the motor.

[0043] refer to Figure 1 and Figure 2 The bracket 1 includes a first support plate 101 and a second support plate 102 arranged in parallel, and the first support plate 101 and the second support plate 102 are fixedly connected by a plurality of evenly distributed support rods 103. Specifically, the first support plate 101 and the second support plate 102 are fixedly connected to the support rods 103 by screws, which is convenient for disassembly and assembly. The driving component 5 is fixedly installed on the first support plate 101 by screws; a stable frame is constructed by using the first support plate 101 and the second support plate 102 and the support rods 103 installed in parallel to provide an installation basis for the winding assembly 2, the driving component 5 and other components, and ensure the stability of the entire device.

[0044] refer to Figure 1 and Figure 2The winding assembly 2 includes two turntables 201, which are rotatably mounted on the first support plate 101 and the second support plate 102 through bearings respectively. The two turntables 201 are fixedly connected by a plurality of winding rods 202 evenly distributed around the axis of the turntables 201, and the turntables 201 and the winding rods 202 are fixedly connected by screws; the turntable 201 at the first end of the winding assembly 2 is fixedly connected to the output shaft of the driving component 5, and the turntable 201 at the second end of the winding assembly 2 is coaxially fixedly connected to the first synchronous wheel 6; the two turntables 201 are connected by the winding rod 202 to form an integral winding structure, and the power of the driving component 5 is transmitted to one of the turntables 201 through the output shaft, so that the entire winding assembly 2 rotates, and the synchronous rotation of the first synchronous wheel 6 provides power transmission for the subsequent operation of the sliding assembly 4 and the metering assembly 3.

[0045] refer to Figure 1 and Figure 2 The second support plate 102 is equipped with a one-way damper 8, which is connected to the rotating shaft of the corresponding turntable 201; the one-way damper 8 has a one-way damping effect. When the drone flies into the air, the cable pulls the turntable 201 to rotate in the line-releasing direction. At this time, the damper generates resistance, so that the cable is always in a taut state, avoiding problems such as loose cables and knots. When rotating in the line-reeling direction, the damping is small or there is no damping.

[0046] refer to Figure 1 and Figure 2 An electric slip ring 9 is installed on the second support plate 102 through a connecting frame 10, and the connecting frame 10 is fixedly installed on the second support plate 102 by screws. The electric slip ring 9 is fixedly installed on the connecting frame 10 by screws, and the electric slip ring 9 is connected to the cable; the electric slip ring 9 uses the relative sliding contact between the brush and the conductive ring to achieve uninterrupted electrical connection between the rotating part and the stationary part, and even if the winding assembly 2 rotates, the electrical continuity of the cable can be guaranteed.

[0047] refer to Figure 1 and Figure 2The sliding assembly 4 includes two bearing plates 410, which are fixedly mounted on the first support plate 101 and the second support plate 102 by screws, respectively. Two parallel guide rods 420 and a transmission shaft 430 are arranged between the two bearing plates 410. The two ends of the two guide rods 420 are fixedly connected to the two bearing plates 410 by screws, and the two ends of the transmission shaft 430 are rotatably connected to the two bearing plates 410 by bearings, and one end of the transmission shaft 430 is fixedly connected to the second synchronous wheel 7. A slider 440 is also arranged between the two bearing plates 410. The two guide rods 420 and the transmission shaft 430 are arranged between the two bearing plates 410. 0 all pass through the slider 440, the slider 440 is slidably connected to the two guide rods 420, and the transmission shaft 430 is used to drive the slider 440 to reciprocate along the guide rods 420; the rotation of the transmission shaft 430 causes the slider 440 to reciprocate along the guide rods 420, thereby driving the meter-counting assembly 3 to move, and the guide rods 420 provide guidance for the movement of the slider 440 to ensure the stability and accuracy of its movement. The synchronous belt drive is associated with the rotation of the winding assembly 2, which ensures that the meter-counting assembly 3 can accurately follow the retracted and released position of the cable for measurement, and at the same time, the cable can be neatly wound on the winding assembly 2.

[0048] Specifically, refer to Figure 3 A linear bearing 441 is also provided between the slider 440 and the two guide rods 420. Since there are rolling bodies (such as balls or rollers) inside the linear bearing 441, when the slider 440 moves on the guide rod 420, the rolling bodies roll between the guide rod 420 and the slider 440. This rolling friction replaces the sliding friction, so that the slider 440 can move smoothly on the guide rod 420, ensuring the accuracy and stability of the linear motion trajectory of the slider 440 on the guide rod 420, reducing the friction between the slider 440 and the guide rod 420, and enhancing the wear resistance and practical life of the slider 440 and the guide rod 420.

[0049] refer to Figure 2 and Figure 3 Two staggered spiral grooves 431 are provided on the side of the transmission shaft 430 along the axis, and both ends of the two spiral grooves 431 are connected. A crescent pin 442 perpendicular to the transmission shaft 430 is provided in the slider 440, and the crescent pin 442 is rotatably connected to the slider 440, and the crescent pin 442 is engaged with the spiral groove 431. Since the two spiral grooves 431 are staggered and connected at both ends, when the transmission shaft 430 continues to rotate, the crescent pin 442 slides in the spiral groove 431, and the moving direction of the slider 440 is changed according to the direction of the spiral groove, thereby realizing the reciprocating motion of the slider 440.

[0050] Specifically, refer to Figure 3The slider 440 is provided with a mounting hole (not shown in the figure) which is perpendicular to the transmission shaft 430. The crescent pin 442 is installed in the mounting hole through a circular fixing block 443. The crescent pin 442 is rotationally connected to the fixing block 443. The fixing block 443 is threadedly connected in the mounting hole, which facilitates the disassembly of the fixing block 443 and the crescent pin 442 by threads.

[0051] refer to Figure 1 and Figure 3 The meter-counting assembly 3 includes two mounting plates 310, which are symmetrically mounted on both sides of the slider 440. A meter-counting wheel 320 is arranged in the middle of the two mounting plates 310. The cable is wound around the meter-counting wheel 320. Both ends of the meter-counting wheel 320 are rotatably connected to the two mounting plates 310 respectively. A rotary encoder 330 is mounted on one of the mounting plates 310 through a mounting bracket 1. The rotating shaft of the meter-counting wheel 320 is connected to the rotary encoder 330, and the rotary encoder 330 is electrically connected to the controller. The rotary encoder 330 detects the rotation angle or number of turns of the meter-counting wheel 320 and converts it into an electrical pulse signal. The controller calculates the moving length of the cable according to the number of pulses of the encoder and the circumference of the meter-counting wheel 320.

[0052] Specifically, refer to Figure 3 In order to improve the structural stability of the meter assembly 3, a plurality of connecting rods 340 are further arranged between the two mounting plates 310. The two ends of the plurality of connecting rods 340 are respectively mounted on the two mounting plates 310 by screws, which can improve the structural stability between the two mounting plates 310.

[0053] refer to Figure 3 , there are two wire racks 350 between the two mounting plates 310, one of which faces the winding assembly 2, and the other faces upward; the wire rack 350 includes a wire block 351, and a wire hole 352 is provided on the wire block 351, and at least three rollers 353, preferably four, are arranged in the wire hole 352, and the rollers 353 are rotatably mounted on the wire block 351, and the four rollers 353 form a wire ring, and the wire ring is used for the cable to pass through; the cable passes through the wire holes 352 of the two wire racks 350 in turn during the retraction and release process, and the rollers 353 in the wire holes 352 contact the cable, and the cable moves to drive the rollers 353 to rotate, thereby reducing the friction between the cable and the wire rack 350, thereby reducing the friction resistance of the cable during the retraction and release process, reducing the wear of the cable, and extending the service life of the cable. At the same time, the setting of the wire rack 350 ensures the stable direction of the cable, which is conducive to improving the quality of cable retraction and release.

[0054] A meter-counting type retractable wire winch control method, using a meter-counting type retractable wire winch, the control method comprising:

[0055] The controller system is initialized. After the controller is powered on, it performs a self-test to check whether the electrical connections with the drive components, meter-counting components and other components are normal. At the same time, the count of the meter-counting component is initialized and the initial value of the rotary encoder is set to 0, in preparation for the subsequent accurate measurement of the cable length.

[0056] The winding and releasing operation is started, and the controller receives the winding or releasing command input from the outside. The command may come from the operator's operation panel, remote control equipment, etc. According to the received command, the controller sends a corresponding control signal to the driving component, and the driving component starts and drives the winding assembly to rotate. If it is a winding command, the driving component drives the winding assembly to rotate clockwise (assuming that clockwise is the winding direction); if it is a releasing command, the winding assembly is driven to rotate counterclockwise;

[0057] The sliding assembly is started synchronously. When the winding assembly rotates, the first synchronous wheel rotates accordingly, and the second synchronous wheel at one end of the sliding assembly is driven to rotate through the synchronous belt. The second synchronous wheel drives the winding assembly to start, and drives the meter counting assembly to reciprocate along the axis direction of the winding assembly. The moving direction and speed of the slider are related to the rotation direction and speed of the winding assembly, thereby driving the meter counting assembly to reciprocate along the axis direction of the winding assembly, ensuring that the cable is evenly wound or released on the winding assembly;

[0058] Cable retracted length detection: the meter-counting component detects the length of the cable passing through, converts the detected data signal into an electrical signal, and sends the electrical signal to the controller. Specifically, during the retracted and released process, the cable contacts the meter-counting wheel of the meter-counting component, driving the meter-counting wheel to rotate. The rotating shaft of the meter-counting wheel is connected to the rotary encoder. The rotation of the meter-counting wheel causes the rotary encoder to generate a pulse signal. The controller receives the pulse signal sent by the rotary encoder, and calculates the retracted length of the cable according to the number of encoder pulses and the circumference of the meter-counting wheel. The calculation formula is: cable length = meter-counting wheel circumference × encoder pulse number / encoder pulse number per revolution;

[0059] Cable retraction and release length monitoring and control: the controller monitors the cable length measured by the metering component in real time and displays the measurement results on the operation panel, which is convenient for operators to understand the cable retraction and release status. When the cable retraction and release length reaches the preset value, the controller sends a stop signal to the drive component, the drive component stops working, and the winding component stops rotating, thereby achieving precise control of the cable retraction and release length;

[0060] Abnormal handling: if the driving component detects that the load is too large, it sends an overload signal to the controller. After receiving the signal, the controller immediately stops the driving component to prevent equipment damage. If the controller detects that the signal of the rotary encoder is abnormal, it sends an alarm signal to remind the operator to check the meter component in time.

[0061] The technical solution of the present application is provided by setting a bracket, a winding assembly, a meter counting assembly, a sliding assembly, a driving component and a controller. The meter counting assembly and the driving component are electrically connected to the controller. The winding assembly is installed on the bracket. The winding assembly is used to wind and retract the cable. The first end of the winding assembly is connected to the driving component. The second end of the winding assembly is installed with a first synchronous wheel. The meter counting assembly is installed on the bracket through the sliding assembly. One end of the sliding assembly is installed with a second synchronous wheel. The second synchronous wheel is connected to the first synchronous wheel through a synchronous belt. The sliding assembly is used to drive the meter counting assembly to move back and forth along the axis direction of the winding assembly. The cable passes through the meter counting assembly. The meter counting assembly is used to detect the length of the cable retracted and released. The driving component receives a signal from the controller and starts to work, driving the winding assembly to rotate, so as to realize the retraction and release of the cable. When the winding assembly rotates, the first synchronous wheel rotates accordingly, and the second synchronous wheel is driven to rotate through the synchronous belt, so that the sliding assembly works. The sliding assembly drives the meter-counting assembly to move back and forth along the axis direction of the winding assembly. During this process, the meter-counting assembly detects the length of the cable retracted and released, and feeds back the data to the controller. This solution realizes the integration of cable retraction and release and length measurement, with a compact structure and high functional integration. Through synchronous belt transmission and sliding assemblies, it is ensured that the meter-counting assembly can accurately follow the retraction and release position of the cable for measurement, thereby improving the accuracy of length measurement. In addition, compared with the prior art, it has a simple structure and a low manufacturing cost.

[0062] The above description is only an optional embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A meter-counting type reeling and unreeling winch, characterized in that: include: A bracket, a winding assembly, a meter-counting assembly, a sliding assembly, a driving component and a controller, wherein the meter-counting assembly and the driving component are both electrically connected to the controller, the winding assembly is mounted on the bracket, the winding assembly is used to wind and retract the cable, the first end of the winding assembly is connected to the driving component, the second end of the winding assembly is equipped with a first synchronous wheel, the meter-counting assembly is mounted on the bracket via a sliding assembly, one end of the sliding assembly is equipped with a second synchronous wheel, the second synchronous wheel is connected to the first synchronous wheel via a synchronous belt, the sliding assembly is used to drive the meter-counting assembly to reciprocate along the axial direction of the winding assembly, the cable passes through the meter-counting assembly, and the meter-counting assembly is used to detect the length of the cable retracted and released.

2. The meter-counting type retractable winch according to claim 1, characterized in that: The bracket comprises a first support plate and a second support plate arranged in parallel, and the first support plate and the second support plate are fixedly connected by a plurality of support rods; The driving component is fixedly mounted on the first supporting plate.

3. The meter-counting type retractable winch according to claim 2, characterized in that: The winding assembly includes two rotating disks, which are rotatably mounted on the first supporting plate and the second supporting plate respectively, and the two rotating disks are fixedly connected by a plurality of winding rods evenly distributed around the axis of the rotating disk; The rotating disk at the first end of the winding assembly is fixedly connected to the output shaft of the driving component, and the rotating disk at the second end of the winding assembly is coaxially fixedly connected to the first synchronous wheel.

4. The meter-counting type retractable winch according to claim 3, characterized in that: The second support plate is equipped with a one-way damper, and the one-way damper is connected to the rotating shaft of the corresponding turntable.

5. The meter-counting type retractable winch according to claim 2, characterized in that: An electric slip ring is installed on the second support plate via a connecting frame, and the electric slip ring is connected to the cable.

6. The meter-counting type retractable winch according to claim 2, characterized in that: The sliding assembly includes two bearing plates, and the two bearing plates are respectively mounted on the first supporting plate and the second supporting plate, two guide rods and a transmission shaft parallel to each other are arranged between the two bearing plates, two ends of the two guide rods are respectively fixedly connected to the two bearing plates, two ends of the transmission shaft are respectively rotatably connected to the two bearing plates, one end of the transmission shaft is fixedly connected to the second synchronous wheel, and a slider is also arranged between the two bearing plates, the two guide rods and the transmission shaft both pass through the slider, the slider is slidably connected to the two guide rods, and the transmission shaft is used to drive the slider to reciprocate along the guide rods.

7. The meter-counting type retractable line winch according to claim 6, characterized in that: Two mutually staggered spiral grooves are opened along the axis on the side of the transmission shaft, and both ends of the two spiral grooves are connected. A crescent pin perpendicular to the transmission shaft is provided in the slider, and the crescent pin is rotatably connected to the slider, and the crescent pin is engaged with the spiral groove.

8. The meter-counting type retractable winch according to claim 6, characterized in that: The meter-counting assembly includes two mounting plates, which are symmetrically mounted on both sides of the slider, a meter-counting wheel is arranged in the middle of the two mounting plates, the cable is passed around the meter-counting wheel, both ends of the meter-counting wheel are rotatably connected to the two mounting plates respectively, a rotary encoder is mounted on one of the mounting plates, a rotating shaft of the meter-counting wheel is connected to the rotary encoder, and the rotary encoder is electrically connected to the controller.

9. The meter-counting type retractable line winch according to claim 8, characterized in that: Two wire-passing racks are also arranged between the two mounting plates, one of which faces the winding assembly and the other faces upwards; The wire passing rack comprises a wire passing block, a wire passing hole is provided on the wire passing block, at least three rollers are arranged in the wire passing hole, the rollers are rotatably mounted on the wire passing block, and a plurality of the rollers form a wire passing ring, and the wire passing ring is used for the cables to pass through.

10. A control method for a meter-counting type reel-and-release winch, characterized in that: Using the meter-counting type wire-reeling winch as described in any one of claims 1 to 9, the control method includes: The controller system is initialized. After the controller is powered on, it performs a self-test to check whether the electrical connections with the drive components, meter-counting components and other components are normal. At the same time, the counting of the meter-counting components is initialized; The wire reeling and unwinding operation starts, and the controller receives the wire reeling or unwinding command input from the outside. According to the received command, the controller sends a corresponding control signal to the driving component, and the driving component starts and drives the winding assembly to rotate; The sliding assembly is started synchronously. When the winding assembly rotates, the first synchronous wheel rotates accordingly, and the second synchronous wheel at one end of the sliding assembly is driven to rotate through the synchronous belt. The second synchronous wheel drives the winding assembly to start, and drives the meter counting assembly to reciprocate along the axis direction of the winding assembly. Cable retraction and extension length detection: the meter-counting component detects the length of the cable passing through, converts the detected data signal into an electrical signal, and sends the electrical signal to the controller; Cable retracting and releasing length monitoring and control: the controller monitors the cable length measured by the metering component in real time and displays the measurement result on the operation panel. When the cable retracting and releasing length reaches the preset value, the controller sends a stop signal to the driving component, the driving component stops working, and the winding component stops rotating; Abnormal handling: if the driving component detects that the load is too large, it sends an overload signal to the controller. After receiving the signal, the controller immediately stops the driving component from working. If the controller detects that the signal of the rotary encoder is abnormal, it sends an alarm signal.

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