Controllable take-up and pay-off control method and device with near-zero tension

Abstract

The invention provides a controllable take-up and pay-off control method and device with near-zero tension, and the method comprises the specific steps: formulating the number of take-up and pay-off layers of take-up and pay-off of the controllable take-up and pay-off control device and a tachometer of a driving motor, and inputting the obtained number of take-up and pay-off layers and the tachometer of the driving motor into a controller of a control assembly; therefore, take-up and pay-off of a cable on a winding reel in the winding assembly are controlled. The controllable take-up and pay-off control device comprises a take-up assembly, a wire arranging assembly, a driving assembly and a control assembly, the take-up assembly, the wire arranging assembly, the driving assembly and the control assembly are connected with the first mounting end, the second mounting end, the third mounting end and the fourth mounting end of the rack respectively, and the wire arranging assembly is located at the lower end of the take-up assembly. According to the method, the number of the outermost layers in the cable is obtained, the motor rotating speed matched with the vehicle speed is obtained according to the number of the layers, then vehicle-mounted synchronous take-up and pay-off are achieved, and the problem of low operation efficiency caused by low cable take-up and pay-off efficiency is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable conveying, and in particular to a control method and device for controlling a controllable retractable and pay-out line with near-zero tension. Background Art

[0002] In many engineering operations, some equipment needs to be powered by a wall power supply, and the operation site is a certain distance away from the wall power supply. For example, in a large railway freight car maintenance workshop, welding operations require a long cable to be powered by a wall power supply. In order not to affect other operations and safety, the cable must be retracted and released to ensure that the cable is close to the ground and does not accumulate, and to ensure that the cable plug is not unplugged from the wall socket. At the same time, in order to enhance the adaptability to different working conditions, the cable retracting and releasing device needs to be able to adapt to certain cable diameter changes.

[0003] In recent years, there have been pay-off and reeling devices with feedback, such as those that use a meter wheel to measure the pay-off and reeling speed. Although automatic pay-off and reeling control is achieved, the meter wheel needs to be powered when paying out the wire, which makes the pay-off and reeling device structure complex and increases the complexity of the control system. Pay-off and reeling devices that use laser radar for ranging use a controller to adjust the speed, but if there is an object blocking the laser radar and the fixed measurement object, it will affect the accuracy of the measurement. From the current survey, there is no pay-off and reeling device that is suitable for automatic pay-off and reeling of cables, cables that fit the ground without accumulation, cables that are not pulled out, and cables that can be used with a certain degree of cable diameter change and have a simple device structure and control.

[0004] Therefore, the present invention proposes a control method and device for controlling wire reeling and unwinding with near-zero tension. The technical term near-zero tension of the present invention refers to the cable being statically laid on the ground. Theoretically, there is zero tension in the cable. However, during the process of reeling and unwinding, due to the pulling force provided by the winding drum, the weight of the cable, and the friction between the cable and the ground, the tension in the cable may not be zero, that is, the tension in the cable is less than the friction force and is close to zero. When the controllable wire reeling and unwinding device of the present invention is used for welding railway freight cars, the cable is reeled and unwound with the car. The device replaces manual reeling and unwinding with electric power, and ensures that when the cable is reeled and unwound with the car, the released part of the cable is in contact with the ground and does not accumulate. The cables are arranged neatly and orderly, ensuring that the cable plug is not pulled out of the socket on the wall. It is suitable for cables of different diameters. Indirect measurement of the cable speed through the control component not only simplifies the structure of the wire reeling and unwinding device, but also requires only one power source, reducing the complexity of the control system. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a controllable wire retraction and release control method and device with near-zero tension, which uses electric power instead of manual wire retraction and release to provide power, thereby solving the problem of time-consuming and labor-intensive repeated manual laying of cables due to the long distance between two welding points. Through the slide groove on the wire guide connecting frame in the wire guide in the wire arrangement assembly, the first roller and the second roller inside the wire guide can be moved to adjust the distance between the first roller and the second roller, and the reciprocating screw of the corresponding wire pitch is replaced at the same time, thereby solving the problem of replacing cables of different diameters for power supply due to the need for power supply, but the wire guide is not suitable, and at the same time avoiding the problem of uneven wire arrangement on the wire reel when manually winding the cable. At the same time, the feedback adjustment function of the controller and trigger component in the control component solves the problem that the cables cannot be kept close to the ground and the cables are piled up when they are retracted and released with the vehicle, and prevents the cable plug from being pulled out of the socket. The sensor connecting plate in the trigger component has a slide groove. As the cable retracting device is used for a long time, the components where the trigger plate and the contact sensor are located may become loose, making it impossible for the two to collide and contact. At this time, the position of the contact sensor can be adjusted through the slide groove of the sensor connecting plate, so that the trigger plate and the contact sensor complete the collision.

[0006] The present invention provides a controllable pay-off and take-up line control method with near-zero tension, and the specific implementation steps are as follows:

[0007] S1. Formulate the number of retractable and retractable wire layers and the speed table of the driving motor for the controllable retractable and retractable wire control device. The specific operation steps are as follows:

[0008] S11, according to the cable diameter, cable length and radius value of the winding drum in the controllable wire retracting and releasing control device, obtain the distance R from the outermost cable to the center of the winding drum and the total number of cable layers;

[0009] S12, according to the linear speed V of the vehicle where the controllable retractable wire control device is placed 车 , obtain the linear velocity V of the outermost cable on the winding drum 线缆 , thereby obtaining the angular velocities ω of the cable and the winding drum in the controllable retractable and reeling control device respectively according to the relationship between the linear velocity and the angular velocity;

[0010] S13, according to the relationship between the angular velocity ω and the rotation speed n, obtaining the rotation speed of the winding drum in the controllable reel-and-release control device and the rotation speed of the driving motor of the driving assembly;

[0011] S2, input the number of retractable wire layers and the driving motor tachometer obtained in step S1 into the controller of the control component in the controllable retractable wire control device, so as to control the reeling and unreeling of the cable on the reel in the winding assembly. The specific operation steps are as follows:

[0012] S21, the controller obtains the corresponding number of retractable and retractable wire layers and the driving motor speed table according to cables of different diameters and vehicle speeds;

[0013] S22, the controller reads the number of layers of the outermost layer of the cable, searches for the number of layers of the retractable and releasable cables and the speed value corresponding to the driving motor in the driving motor speed table according to the number of layers, and obtains the retractable and releasable cable instructions according to the running direction of the vehicle on which the controllable retractable and releasable cable control device is placed, and then the driving motor rotates according to the searched and determined speed value, thereby controlling the driving motor to rotate in the reverse direction and in the forward direction respectively;

[0014] S23, under the control of step S22, the driving assembly drives the winding assembly to rotate until the outermost layer of cable is completely retracted or released. At this time, the linear velocity V of the outermost layer of cable on the winding drum is 线缆 Equal to the linear speed V of the controllable retractable and retractable wire control device 车 ;

[0015] S24, when the outermost layer of the cable on the winding drum is completely wound or released, the trigger plate in the wire guide triggers the contact sensor, and the contact sensor transmits a signal to the controller, so that the controller adds one or subtracts one from the current layer number read according to the winding or releasing instruction, thereby obtaining a new layer number;

[0016] S25, repeating steps S22 to S24 until the controllable retractable and retractable wire control device stops running.

[0017] Preferably, in step S1, the number of the retractable and pay-off wire layers and the number of the tachometers of the driving motor are related to the diameter of the cable and the linear speed of the vehicle on which the controllable retractable and pay-off wire control device is placed.

[0018] Preferably, in step S12, the linear speed V of the vehicle on which the controllable retractable wire control device is placed is 车 is a certain value.

[0019] Preferably, in step S11, each layer in the total number of layers of the cable corresponds to an angular velocity of a constant value.

[0020] Preferably, in step S13, the prerequisite for the rotation speed of the winding drum and the rotation speed of the driving motor to be equal is that the transmission ratio in the driving assembly is 1:1.

[0021] Preferably, in step S2, when the controllable retractable and retractable wire control device stops running, the controller records the layer number of the outermost cable at that time.

[0022] Another aspect of the present invention provides a controllable retractable wire control device with a controllable retractable wire control method with near-zero tension, which includes a frame, a wire winding assembly, a wire arranging assembly, a driving assembly and a control assembly, wherein the wire winding assembly, the wire arranging assembly, the driving assembly and the control assembly are respectively connected to a first mounting end, a second mounting end, a third mounting end and a fourth mounting end of the frame, and the wire winding assembly includes a wire reel, a through-hole conductive slip ring, a transmission shaft, a first belt seat bearing and a second belt seat bearing, wherein the wire reel is located in the middle of the transmission shaft, The two ends of the transmission shaft are respectively connected to the two sides of the first mounting end of the frame through the first seat bearing and the second seat bearing, the through-hole conductive slip ring is located on one side of the winding drum and is connected to the mounting end of the transmission shaft; the cable arrangement assembly includes a wire guide, a reciprocating screw, a guide slide bar, a third seat bearing, a fourth seat bearing, a fifth seat bearing and a sixth seat bearing, the slider nut and the linear slider in the wire guide are respectively slidably connected to the middle of the reciprocating screw and the guide slide bar, and the two ends of the reciprocating screw are respectively connected through the third seat shaft The bearing and the fourth seat bearing are connected to the first fixed ends on both sides of the second mounting end of the frame, and the two ends of the guide slide bar are respectively connected to the second fixed ends on both sides of the second mounting end of the frame through the fifth seat bearing and the sixth seat bearing; the driving assembly includes a driving motor, a first synchronous pulley, a first synchronous belt, a second synchronous pulley, a third synchronous pulley, a second synchronous belt and a fourth synchronous pulley, the fixed end of the driving motor is connected to the third mounting end of the frame, the output end of the driving motor is connected to the middle part of the first synchronous pulley, the first synchronous pulley is connected to the second synchronous pulley through the first synchronous belt, the middle part of the second synchronous pulley is connected to the driving end of the transmission shaft in the winding assembly, the middle part of the third synchronous pulley is coaxially installed with the middle part of the second synchronous pulley, the third synchronous pulley is connected to the fourth synchronous pulley through the second synchronous belt, and the middle part of the fourth synchronous pulley is connected to the driving end of the reciprocating screw in the cable arrangement assembly; the control assembly includes a controller and a trigger assembly, and the controller is connected to the upper end of the fourth mounting end of the frame.

[0023] Preferably, the wire guide comprises a first roller, a wire guide connecting frame, a slider nut, a trigger plate, a linear slider and a second roller, the mounting ends of the first roller and the second roller are respectively connected to the first mounting end and the second mounting end inside the wire guide connecting frame, the fixed ends of the slider nut and the linear slider are respectively connected to the first mounting end and the second mounting end outside the wire guide connecting frame, and the trigger plate is located at the third mounting end outside the wire guide connecting frame.

[0024] Preferably, the trigger assembly includes a contact sensor, a sensor seat and a sensor connecting plate, the contact sensor is connected to the first mounting end of the sensor connecting plate through the sensor seat, and the second mounting end of the sensor connecting plate is connected to the lower end of the fourth mounting end of the frame.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1. The controllable wire retracting and releasing control method of the present invention mainly adds a controller and a trigger component to the controllable wire retracting and releasing control device, and the two are combined to obtain the number of layers of the outermost cable, and obtain the speed of the driving motor that matches the reeling and releasing speed of the outermost cable at this time with the vehicle speed, thereby realizing that the wire reel assembly can reel in and release the cable synchronously with the vehicle, solving the problem of low operating efficiency caused by low cable retracting and releasing efficiency, and also solving the problem that the released cable cannot be guaranteed to fit the ground and accumulates, and the problem that the cable plug is easily pulled out of the socket, thereby realizing the automatic wire reeling and releasing of the wire reel assembly with the vehicle.

[0027] 2. The controllable wire retracting and releasing control device of the present invention solves the problem of uneven wire arrangement during the wire reeling and releasing process of the controllable wire retracting and releasing control device by providing a wire arrangement assembly having a first roller and a second roller that can adapt to different cable diameters.

[0028] 3. A guide groove is provided on the wire guide in the controllable wire retracting and releasing control device of the device. The distance between the first roller and the second roller can be adjusted on the guide groove. At the same time, the reciprocating lead screw with a wire pitch matching the cable diameter is replaced, so that the winding drum in the winding assembly can retract and release cables of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a flow chart of a control method for controlling a controllable pay-off and take-up line with near-zero tension according to the present invention;

[0030] Figure 2 It is a first overall structural diagram of the controllable retractable and pay-out line control device with near-zero tension of the present invention;

[0031] Figure 3 It is a second overall structural diagram of the controllable retractable and pay-out line control device with near-zero tension of the present invention;

[0032] Figure 4 It is a structural diagram of the wire guide in the controllable wire retracting and releasing control device with near-zero tension of the present invention;

[0033] Figure 5 The present invention is a structural diagram of a trigger assembly in a controllable retractable and pay-out line control device with near-zero tension.

[0034] Main reference numerals:

[0035] Frame 1, winding assembly 2, winding drum 21, cable 22, through-hole conductive slip ring 23, transmission shaft 24, first belt seat bearing 25, second belt seat bearing 26, cable arrangement assembly 3, wire guide 31, first roller 311, wire guide connecting frame 312, slider nut 313, trigger plate 314, linear slider 315, second roller 316, reciprocating screw 32, guide slide bar 33, third belt seat bearing 34, fourth belt seat bearing 35, fifth belt seat bearing 36, sixth belt seat bearing 37, drive assembly 4, drive motor 41, first synchronous pulley 42, first synchronous belt 43, second synchronous pulley 44, third synchronous pulley 45, second synchronous belt 46, fourth synchronous pulley 47, control assembly 5, controller 51, trigger assembly 52, contact sensor 521, sensor seat 522, sensor connecting plate 523. DETAILED DESCRIPTION

[0036] In order to fully describe the technical content, structural features, objectives and effects of the present invention, the following will be described in detail with reference to the accompanying drawings.

[0037] Controllable pay-off and take-up line control method with near-zero tension, such as Figure 1 As shown, the specific implementation steps are:

[0038] S1. According to the engineering operation requirements, the number of retractable wire layers of the controllable retractable wire control device - the driving motor tachometer is formulated. Furthermore, the number of retractable wire layers and the number of driving motor tachometers are related to the diameter of the cable 22 and the linear speed of the vehicle on which the controllable retractable wire control device is placed. The linear speed V of the vehicle on which the controllable retractable wire control device is placed is 车 is a constant value, each layer in the total number of layers of the cable 22 corresponds to a constant angular velocity, and the diameter of the cable 22 and the radius of the winding drum 21 are constant values ​​in each winding and releasing layer and the driving motor speed table. The specific operation steps are:

[0039] S11. According to the diameter of the cable 22 in the controllable retractable and retractable wire control device, the length of the cable 22 and the radius of the winding drum 21, the distance R from the outermost layer of the cable 22 to the center of the winding drum 21 and the total number of layers of the cable 22 are obtained. Specifically, the existence of the cable arrangement assembly 3 enables the cable 22 to be tightly and orderly wound around the winding drum 21, so the distance between each layer of the cable 22 and the center of the winding drum 21 is a constant.

[0040] S12, according to the linear speed V of the vehicle where the controllable retractable wire control device is placed 车 , obtain the linear velocity V of the outermost cable 22 on the winding drum 21 线缆 , thereby obtaining the angular velocities ω of the cable 22 and the winding drum 21 in the controllable retractable wire control device respectively according to the relationship between the linear velocity and the angular velocity.

[0041] S13. According to the relationship between the angular velocity ω and the rotational speed n, the rotational speed of the winding drum 21 in the controllable reel-and-release control device and the rotational speed of the driving motor 41 of the driving assembly 4 are obtained. In a preferred embodiment of the present invention, the prerequisite for the rotational speed of the winding drum 21 and the rotational speed of the driving motor 41 to be equal is that the transmission ratio in the driving assembly 4 is 1:1, and each layer of the cable 22 corresponds to a fixed angular velocity ω and rotational speed.

[0042] S2, input the number of retractable wire layers and the driving motor tachometer obtained in step S1 into the controller 51 of the control component 5 in the controllable retractable wire control device, so as to control the reeling and unreeling of the cable 22 on the reel 21 in the winding assembly 2. The specific operation steps are as follows:

[0043] S21, the controller 51 obtains the corresponding number of retractable and retractable wire layers and the driving motor speed table according to the cables 21 of different diameters and the vehicle speed.

[0044] S22, the controller reads the layer number of the outermost layer of the cable 22, searches the number of layers of the take-up and pay-out lines and the speed value corresponding to the drive motor 41 in the drive motor speed table according to the layer number, and obtains the take-up and pay-out instructions according to the running direction of the vehicle on which the controllable take-up and pay-out control device is placed, and then the drive motor 41 rotates according to the searched and determined speed value, thereby controlling the drive motor 41 to rotate in the reverse direction and forward direction respectively.

[0045] S23, under the control of step S22, the driving assembly 4 drives the winding assembly 2 to rotate until the outermost cable 22 is completely retracted or released, so that the linear velocity V of the outermost cable 22 on the winding drum 21 is 线缆 Equal to the linear speed V of the controllable retractable and retractable wire control device 车 .

[0046] S24, when the outermost cable 22 on the winding drum 21 is completely wound or unwound, the trigger plate 314 in the wire guide 31 triggers the contact sensor 521, and the contact sensor 521 transmits a signal to the controller 51, so that the controller 51 adds one or subtracts one from the current layer number read according to the winding or unwinding instruction, thereby obtaining a new layer number;

[0047] S25. After obtaining a new number of layers in step S24, the controller 51 repeats steps S22 to S24 until the controllable retractable and retractable wire control device stops running.

[0048] A second aspect of the present invention provides a controllable pay-off and take-up wire control device with near-zero tension, such as Figure 2 and Figure 3As shown, it includes a frame 1, a winding assembly 2, a cable arrangement assembly 3, a driving assembly 4 and a control assembly 5. The winding assembly 2, the cable arrangement assembly 3, the driving assembly 4 and the control assembly 5 are respectively connected to the first mounting end, the second mounting end, the third mounting end and the fourth mounting end of the frame 1, and the cable arrangement assembly 3 is located below the winding assembly 2. The frame 1 has a storage space inside. The winding assembly 2 is used for winding and releasing the cable 22 and conducting electricity. The cable arrangement assembly 3 is used to adapt to cables 22 of different diameters and straighten the cables 22 to make the cables 22 reciprocate so that they are arranged tightly and orderly on the winding assembly 2. The driving assembly 4 is used to drive the winding assembly 2 and the cable arrangement assembly 3 to rotate so that the cables 22 are released or retracted to be tightly and orderly wound on the winding assembly 2. The control assembly 5 detects the state of winding and releasing, detects the number of layers of the outermost layer of the cable 22 of the winding assembly 2, finds the number of winding and releasing layers and the driving motor tachometer, and then controls the driving assembly 4 to work, so that the winding assembly 2 can achieve near-zero tension and automatically retract the cable 22 on the vehicle.

[0049] Wire winding assembly 2, such as Figure 3 As shown, it includes a winding drum 21, a cable 22, a through-hole conductive slip ring 23, a transmission shaft 24, a first belt seat bearing 25 and a second belt seat bearing 26. The winding drum 21 is located in the middle of the transmission shaft 24, and both ends of the transmission shaft 24 are connected to the two sides of the first mounting end of the frame 1 through the first belt seat bearing 25 and the second belt seat bearing 26 respectively. The through-hole conductive slip ring 23 is located on one side of the winding drum 21 and is connected to the mounting end of the transmission shaft 24. The cable 22 is located at the winding end of the winding drum 21. The first end of the cable 22 is connected to the through-hole conductive slip ring 23. The through-hole conductive slip ring 23 is used for conduction. The second end of the cable 22 passes through the middle of the first roller 311 and the second roller 316.

[0050] Cable assembly 3, such as Figure 3 As shown, it includes a wire guide 31, a reciprocating screw 32, a guide slide bar 33, a third seat bearing 34, a fourth seat bearing 35, a fifth seat bearing 36 and a sixth seat bearing 37. The slider nut 313 and the linear slider 315 in the wire guide 31 are respectively slidably connected to the middle of the reciprocating screw 32 and the guide slide bar 33. The two ends of the reciprocating screw 32 are respectively connected to the first fixed ends on both sides of the second mounting end of the frame 1 through the third seat bearing 34 and the fourth seat bearing 35. The two ends of the guide slide bar 33 are respectively connected to the second fixed ends on both sides of the second mounting end of the frame 1 through the fifth seat bearing 36 and the sixth seat bearing 37. The wire guide 31, as shown Figure 4As shown, it includes a first roller 311, a wire guide connecting frame 312, a slider nut 313, a trigger plate 314, a linear slider 315 and a second roller 316. Slide grooves are provided on both sides of the wire guide connecting frame 312; the first roller 311 and the second roller 316 are arranged side by side inside the wire guide connecting frame 312, and the mounting ends of the first roller 311 and the second roller 316 are fixedly connected to the first mounting end and the second mounting end inside the wire guide connecting frame 312 respectively. A gap is left between the first roller 311 and the second roller 316 for the cable 22 to pass through. The fixed ends of the slider nut 313 and the linear slider 315 are connected to the first mounting end and the second mounting end outside the wire guide connecting frame 312 respectively, and the trigger plate 314 is located at the third mounting end outside the wire guide connecting frame 312.

[0051] A drive assembly 4, such as Figure 3 As shown, it includes a driving motor 41, a first synchronous pulley 42, a first synchronous belt 43, a second synchronous pulley 44, a third synchronous pulley 45, a second synchronous belt 46 and a fourth synchronous pulley 47. The fixed end of the driving motor 41 is connected to the third mounting end of the frame 1. The driving motor 41 is used to drive the winding assembly 2 and the cable arrangement assembly 3 to rotate. The output end of the driving motor 41 is connected to the middle part of the first synchronous pulley 42. The first synchronous pulley 42 is connected to the second synchronous pulley 44 through the first synchronous belt 43, the middle part of the second synchronous pulley 44 is connected to the driving end of the transmission shaft 24 in the winding assembly 2. The middle part of the third synchronous pulley 45 is coaxially installed with the middle part of the second synchronous pulley 44. The third synchronous pulley 45 is connected to the fourth synchronous pulley 47 through the second synchronous belt 46. The middle part of the fourth synchronous pulley 47 is connected to the driving end of the reciprocating screw 32 in the cable arrangement assembly 3.

[0052] The control component 5 includes a controller 51 and a trigger component 52. The trigger component 52 is used to touch the trigger plate 314 and send a signal. The controller 51 is used to receive the signal sent by the trigger component 52, detect the state of the retractable wire, and control the driving component 4 to work so that the winding component 2 automatically retracts and releases the wire. The controller 51 is connected to the upper end of the fourth mounting end of the frame 1. The controller 51 controls the wire 22 to be retracted and released along with the vehicle on which the controllable retractable wire control device is placed, and the wire 22 is always close to the ground without accumulation. That is, in the same period of time, the driving distance of the vehicle on which the controllable retractable wire control device is placed is the same as the distance of the wire 22 being released or retracted, that is, in the same period of time, the speed of the vehicle on which the controllable retractable wire control device is placed is the same as the linear speed of the wire 22 being released or retracted.

[0053] The trigger component 52, such as Figure 5As shown, it includes a contact sensor 521, a sensor seat 522 and a sensor connecting plate 523, the contact sensor 521 is connected to the first mounting end of the sensor connecting plate 523 through the sensor seat 522, the second mounting end of the sensor connecting plate 523 is connected to the lower end of the fourth mounting end of the frame 1, and is symmetrically located on both sides of the wire guide 31 in the cable assembly 3.

[0054] The following is a further description of a controllable retractable and pay-off line control method and device with near-zero tension according to the present invention in conjunction with an embodiment:

[0055] In this specific embodiment, the driving speed of the vehicle on which the controllable retractable wire control device is placed, the diameter of the cable 22 and the radius of the winding drum 21 are fixed values. According to the characteristics of the device of the present invention, the distance between each layer of cable 22 and the center of the winding drum 21 is a fixed value.

[0056] According to the formula of linear velocity, angular velocity and radius V 车 =V 线缆 =ωR, where ω is the angular velocity of the winding drum 21, and R is the distance from the outermost cable 22 to the center of the winding drum 21. It can be seen that each layer of the outermost cable 21 corresponds to a constant angular velocity ω. At the same time, according to the formula of rotation speed and angular velocity ω=2πn, where n is the rotation speed of the winding drum 22, and the rotation speed of the winding drum 22 is equal to the rotation speed of the driving motor 41, it can be seen that each constant ω corresponds to a constant n. Combining the two formulas, we can obtain the formula V 车 =V 线缆 =2πnR, so we only need to obtain the layer number of the outermost cable 22 to calculate a constant value R. 车 , we can calculate the value of V 车 =V 线缆 The driving motor speed value.

[0057] Finally, the total number of layers of the cable 22 wound on the reel 21 is calculated based on the length and diameter of the cable 22 and the radius of the reel 21, and then the total number of layers of the cable 22 wound on the reel 21 is calculated based on the vehicle speed V. 车 The speed value of the drive motor 41 corresponding to each layer of the cable 22 is calculated with the above formula, and the data is summarized into a table to obtain a table of the number of retractable wire layers and the drive motor speed. The number of retractable wire layers and the drive motor speed tables corresponding to different cable 22 diameters and vehicle speeds are also different. These retractable wire layers and the drive motor speed tables are stored in the controller 51. It is only necessary to obtain the number of layers where the outermost layer of the cable 22 is located. The controller 51 can obtain the V used at this time by checking the corresponding number of retractable wire layers and the drive motor speed table. 车 =V 线缆 The speed value of the driving motor 41 is then controlled to rotate at the speed value.

[0058] If it is detected that the controllable retractable and pay-out control device needs to pay out the line, the specific operation steps are as follows:

[0059] First, start the controllable retractable wire control device. According to the current required speed of the vehicle on which the controllable retractable wire control device is placed and the diameter of the cable 22, the corresponding retractable wire layer number and the driving motor tachometer are first selected in the controller 51. Then the controller 51 reads the layer number of the outermost layer of the cable 22. This layer number is the layer number of the outermost cable 22 at the last end.

[0060] Next, the vehicle on which the controllable retractable wire control device is placed moves forward, and the speed of the vehicle on which the controllable retractable wire control device is placed remains constant. According to the number of layers of the outermost cable 22, the number of retractable wire layers and the drive motor tachometer are looked up to determine the speed value of the drive motor 41. The controller 51 receives an instruction to release the cable 22, and then transmits a speed value to the drive motor 41 for positive rotation.

[0061] Secondly, the driving motor 41 rotates at this speed value, driving the winding assembly 2 to rotate through the driving assembly 4 until the corresponding outermost cable 22 is released, so that the linear speed of the outermost cable 22 located on the winding drum 21 is equal to the speed of placing the controllable winding and releasing control device.

[0062] Then, as the cable 22 is released, the wire guide 31 in the cable arrangement assembly 3 moves on the reciprocating screw 32 and the guide slide bar 33. When the outermost layer of cable 22 of the winding drum 21 is released, the trigger plate 314 in the wire guide 31 triggers the contact sensor 521. The contact sensor 521 transmits a signal to the controller 51, causing the controller 51 to subtract one from the current number of layers read, thereby obtaining a new number of layers.

[0063] Finally, the controller 51 looks up the number of layers of the reel and the speed table of the drive motor, and transmits a speed value corresponding to a new number of layers to the drive motor 41 for positive rotation. The drive motor 41 rotates at this speed value, and drives the winding assembly 2 to rotate through the drive assembly 4, so that the linear speed of the cable 22 on the outermost layer of the winding drum 21 is equal to the speed of placing the controllable reel control device.

[0064] If it is detected that the controllable wire retracting and releasing control device needs to stop running, the controller 51 records the layer number of the outermost cable 22 and the wire release is finished.

[0065] If it is detected that the controllable retractable and pay-out control device needs to reel in the line, the specific operation steps are as follows:

[0066] First, start the controllable retractable wire control device. According to the current required speed of the vehicle on which the controllable retractable wire control device is placed and the diameter of the cable 22, the corresponding retractable wire layer number and the driving motor tachometer are first selected in the controller 51. Then the controller 51 reads the layer number of the outermost layer of the cable 22. This layer number is the layer number of the outermost cable 22 at the last end.

[0067] Next, the vehicle on which the controllable retractable wire control device is placed drives backward, and the speed of the vehicle on which the controllable retractable wire control device is placed remains constant. The controller 51 receives an instruction to retract the cable 22, and according to the number of layers of the outermost cable 22, it searches the retractable wire layer number and the drive motor tachometer, and then transmits a speed value to the drive motor 41 for reverse rotation.

[0068] Secondly, the driving motor 41 rotates at this speed value, and drives the winding assembly 2 to rotate through the driving assembly 4, so that the linear speed of the outermost cable 22 located on the winding drum 21 is equal to the speed of the controllable winding and releasing control device.

[0069] Then, as the cable 22 is retracted, the wire guide 31 in the cable arrangement assembly 3 moves on the reciprocating screw 32 and the guide slide bar 33. When the outermost layer of cable 22 on the winding drum 21 is fully wound, the trigger plate 314 in the wire guide 31 triggers the contact sensor 521. The contact sensor 521 transmits a signal to the controller 51, causing the controller 51 to add one to the current number of layers read to obtain a new number of layers.

[0070] Finally, the controller 51 looks up the number of layers of the reel and the speed table of the drive motor, and transmits a speed value corresponding to a new number of layers to the drive motor 41 for reverse rotation. The drive motor 41 rotates at this speed value, and drives the winding assembly 2 to rotate through the drive assembly 4, so that the linear speed of the cable 22 on the outermost layer of the winding drum 21 is equal to the speed of placing the controllable reel control device.

[0071] If it is detected that the controllable wire retracting and releasing control device needs to stop running, the controller 51 records the layer number of the outermost cable 22 and the wire retracting is finished.

[0072] The present invention realizes on-vehicle cable retraction and release by adding a controller 51 and a trigger component 52, solves the problem of low machining efficiency caused by low cable retraction and release efficiency, and also solves the problem that the released cable cannot be guaranteed to fit the ground and the cable plug is easily pulled out of the socket, thereby realizing automatic cable retraction and release. A cable arrangement component 3 is also provided to solve the problem of uneven cable arrangement during cable retraction and release, and a wire guide 31 is provided, wherein the first roller 311 and the second roller 316 can adjust the distance on the slide groove on the wire guide connecting frame 312, thereby solving the problem of inapplicability of cables 22 of different diameters.

[0073] The embodiments described above are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A control method for controllable pay-off and take-up wire with near-zero tension, It is characterized in that It includes the following steps: S1. According to the engineering operation requirements, formulate the number of retractable and retractable wire layers and the driving motor speed table of the controllable retractable and retractable wire control device. The specific operation steps are as follows: S11, according to the cable diameter, cable length and radius value of the winding drum in the controllable wire retracting and releasing control device, obtain the distance R from the outermost cable to the center of the winding drum and the total number of cable layers; S12, according to the linear speed V of the vehicle where the controllable retractable wire control device is placed 车 , obtain the linear velocity V of the outermost cable on the winding drum 线缆 , thereby obtaining the angular velocities ω of the cable and the winding drum in the controllable retractable and reeling control device respectively according to the relationship between the linear velocity and the angular velocity; S13, according to the relationship between the angular velocity ω and the rotation speed n, obtaining the rotation speed of the winding drum in the controllable reel-and-release control device and the rotation speed of the driving motor of the driving assembly; S2, input the number of retractable wire layers and the driving motor tachometer obtained in step S1 into the controller of the control component in the controllable retractable wire control device, so as to control the reeling and unreeling of the cable on the reel in the winding assembly. The specific operation steps are as follows: S21, the controller obtains the corresponding number of retractable and retractable wire layers and the driving motor speed table according to cables of different diameters and vehicle speeds; S22, the controller reads the number of layers of the outermost layer of the cable, searches for the number of layers of the retractable and releasable cables and the speed value corresponding to the driving motor in the driving motor speed table according to the number of layers, and obtains the retractable and releasable cable instructions according to the running direction of the vehicle on which the controllable retractable and releasable cable control device is placed, and then the driving motor rotates according to the searched and determined speed value, thereby controlling the driving motor to rotate in the reverse direction and in the forward direction respectively; S23, under the control of step S22, the driving assembly drives the winding assembly to rotate until the outermost layer of cable is completely retracted or released. At this time, the linear velocity V of the outermost layer of cable on the winding drum is 线缆 Equal to the linear speed V of the controllable retractable and retractable wire control device 车 ; S24, when the outermost layer of the cable on the winding drum is completely wound or released, the trigger plate in the wire guide triggers the contact sensor, and the contact sensor transmits a signal to the controller, so that the controller adds one or subtracts one from the current layer number read according to the winding or releasing instruction, thereby obtaining a new layer number; S25, repeating steps S22 to S24 until the controllable retractable and retractable wire control device stops running.

2. The control method for controlling a controllable pay-off and take-up line with near-zero tension according to claim 1, It is characterized in that In step S1, the number of retractable wire layers and the number of tachometers of the driving motor are related to the diameter of the cable and the linear speed of the vehicle on which the controllable retractable wire control device is placed.

3. The control method for controlling a controllable pay-off and pay-off line with near-zero tension according to claim 1, It is characterized in that In step S12, the linear speed V of the vehicle on which the controllable retractable and retractable wire control device is placed is 车 is a certain value.

4. The control method for controlling a controllable pay-off and take-up line with near-zero tension according to claim 1 or 3, It is characterized in that In step S11, each layer in the total number of layers of the cable corresponds to an angular velocity of a constant value.

5. The control method for controlling a controllable pay-off and take-up line with near-zero tension according to claim 1, It is characterized in that In step S13, the prerequisite for the rotation speed of the winding drum and the rotation speed of the driving motor to be equal is that the transmission ratio in the driving assembly is 1:

1.

6. The control method for controlling a controllable pay-off and take-up line with near-zero tension according to claim 1, It is characterized in that In step S2, when the controllable wire retracting and releasing control device stops running, the controller records the layer number of the outermost cable at this time.

7. A controllable pay-off and take-up wire control device with a controllable pay-off and take-up wire control method with near-zero tension according to any one of claims 1 to 6, It is characterized in that The invention relates to a wire-arranging assembly, a wire-arranging assembly, a driving assembly and a control assembly, wherein the wire-arranging assembly, the wire-arranging assembly, the driving assembly and the control assembly are respectively connected to the first mounting end, the second mounting end, the third mounting end and the fourth mounting end of the frame, the wire-arranging assembly comprises a wire-arranging drum, a through-hole conductive slip ring, a transmission shaft, a first belt seat bearing and a second belt seat bearing, the wire-arranging drum is located in the middle of the transmission shaft, and the two ends of the transmission shaft are respectively connected to the two sides of the first mounting end of the frame through the first belt seat bearing and the second belt seat bearing, the through-hole conductive slip ring is located on one side of the wire-arranging drum and is connected to the mounting end of the transmission shaft; the wire-arranging assembly comprises a wire guide, a reciprocating screw, a guide slide bar, a third belt seat bearing, a fourth belt seat bearing, a fifth belt seat bearing and a sixth belt seat bearing, the slider nut and the linear slider in the wire guide are respectively slidably connected to the middle of the reciprocating screw and the guide slide bar, and the two ends of the reciprocating screw are respectively connected to the second mounting end of the frame through the third belt seat bearing and the fourth belt seat bearing The first fixed ends on both sides are connected, and the two ends of the guide slide rod are respectively connected to the second fixed ends on both sides of the second mounting end of the frame through the fifth seat bearing and the sixth seat bearing; the driving assembly includes a driving motor, a first synchronous pulley, a first synchronous belt, a second synchronous pulley, a third synchronous pulley, a second synchronous belt and a fourth synchronous pulley, the fixed end of the driving motor is connected to the third mounting end of the frame, the output end of the driving motor is connected to the middle part of the first synchronous pulley, the first synchronous pulley is connected to the second synchronous pulley through the first synchronous belt, the middle part of the second synchronous pulley is connected to the driving end of the transmission shaft in the winding assembly, the middle part of the third synchronous pulley is coaxially installed with the middle part of the second synchronous pulley, the third synchronous pulley is connected to the fourth synchronous pulley through the second synchronous belt, and the middle part of the fourth synchronous pulley is connected to the driving end of the reciprocating screw in the wiring assembly; the control assembly includes a controller and a trigger assembly, and the controller is connected to the upper end of the fourth mounting end of the frame.

8. The controllable retractable and pay-out line control device according to claim 7, It is characterized in that The wire guide comprises a first roller, a wire guide connecting frame, a slider nut, a trigger plate, a linear slider and a second roller, the mounting ends of the first roller and the second roller are respectively connected to the first mounting end and the second mounting end inside the wire guide connecting frame, the slider nut and the fixed ends of the linear slider are respectively connected to the first mounting end and the second mounting end outside the wire guide connecting frame, and the trigger plate is located at the third mounting end outside the wire guide connecting frame.

9. The controllable retractable and pay-out line control device according to claim 7, It is characterized in that The trigger assembly includes a contact sensor, a sensor seat and a sensor connecting plate. The contact sensor is connected to the first mounting end of the sensor connecting plate through the sensor seat, and the second mounting end of the sensor connecting plate is connected to the lower end of the fourth mounting end of the frame.

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