CN107508191B - Intelligent wire outgoing method for tension-resistant rod of power transmission line - Google Patents
Intelligent wire outgoing method for tension-resistant rod of power transmission line Download PDFInfo
- Publication number
- CN107508191B CN107508191B CN201710467416.8A CN201710467416A CN107508191B CN 107508191 B CN107508191 B CN 107508191B CN 201710467416 A CN201710467416 A CN 201710467416A CN 107508191 B CN107508191 B CN 107508191B
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- Prior art keywords
- motor
- transmission line
- power transmission
- flat ladder
- tension rod
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0853—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load specially adapted for motors rotating in both directions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Ladders (AREA)
Abstract
The invention discloses an intelligent wire outlet method for a tension pole of a power transmission line, and provides a wire outlet tool for the tension pole of the power transmission line. The problem that the inward turning large-angle tension tower enters an electric field is solved, and the method is suitable for the operation of tension towers with various types and space structures entering the electric field.
Description
Technical Field
The invention relates to a wire outlet device, in particular to an intelligent wire outlet method for an electric transmission line tension rod.
Background
In the power operation, the outgoing line operation is needed in many occasions, and during the outgoing line, the outgoing line often needs to reach corresponding operation points by means of auxiliary tools, such as an outgoing line galloping car and an operation flat ladder, wherein the outgoing line galloping car is used for conveniently moving forward along a lead, and the operation flat ladder is used for reaching the operation points with spatial distances by using towers. The existing operation flat ladder stands on the cross arm side by an operator during operation, one end of the operation flat ladder is put on the cross arm side of a tower, the other end of the operation flat ladder is put on the wire side, the operation flat ladder is taken out by the operator after being put as required, the operation flat ladder is in a working mode, the operator needs to walk on the suspended operation flat ladder to reach an operation point, on one hand, the danger of the operator is increased during walking on the operation flat ladder, the operation flat ladder is easy to drop and the like, on the other hand, because of equipotential operation, the requirement on places for placing the flat ladder is higher in order to improve the operation safety during walking, and meanwhile, because the operation flat ladder is put on the wire and the cross arm, the wire is easy to damage.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an intelligent wire outlet method for the tension-resistant rod of the power transmission line, which is used for enabling an operator to sit on an operation horizontal ladder at a safe position and then automatically rotate to an operation point through the operation horizontal ladder and is supported by a single end.
The utility model provides a transmission line strain insulator pole intelligence method of being qualified for the next round of competitions which the structural feature lies in: the utility model provides a transmission line strain insulator pole outgoing line instrument that is used for transmission line strain insulator pole intelligence method of being qualified for next round of competitions, transmission line strain insulator pole outgoing line instrument include the operation flat ladder, still include be used for with operation flat ladder with cross arm connecting device and be used for driving the rotatory drive arrangement of operation flat ladder, drive arrangement include gear drive, belt drive or chain drive, the motor drives pinion, little band pulley or little chain wheel and rotates, and then drive the gear wheel by the pinion and move, or the little band pulley drives big band pulley through the belt and moves, or the little chain wheel drives big chain wheel through the chain and moves, gear wheel, big chain wheel and or big band pulley suit drive the axle sleeve and rotate on the axle sleeve, the rotatable suit of axle sleeve is on the pivot, the axle sleeve links to each other with the inner circle of bearing, the outer lane of bearing links to each other with the tip of operation flat ladder and drives operation flat ladder cover to rotate, the lower extreme of pivot support in the motor case, there is a locating slot that the opening is downward in the lower part of the motor case; the connecting device for connecting the operation flat ladder and the cross arm comprises two angle steels, wherein the upper part of one side edge of one angle steel is connected to the motor box, the other angle steel is movably connected in a detachable mode, when the connecting device works, one side edge of the movable angle steel is clamped into the positioning clamping groove at the lower part of the motor box, the inner angle of the angle steel is clamped on the cross arm, the other side edge of the angle steel is pressed on one side edge of the other angle steel, the cross arm is clamped by the other angle steel from the opposite side, and the cross arm is tightly held by the two angle steels from the opposite sides; the operation horizontal ladder on still be provided with the pull rod, the one end of pull rod links to each other with the operation horizontal ladder, the other end and a sleeve of pull rod link to each other, sleeve pivot pivoted cover relatively in the pivot, still be provided with the stay cord in the pivot, the other end of load rope is connected on the shaft tower at the during operation, in operation, utilize transmission line strain insulator pole outgoing line instrument's connecting device earlier to be fixed in transmission line strain insulator pole outgoing line instrument on the cross arm, make the operation horizontal ladder be located the cross arm side simultaneously, the operation personnel sit the end of operation horizontal ladder, back starter motor, drive arrangement work, drive arrangement drive operation horizontal ladder rotates to the drive is sat and is reachd required operating position and carry out the operation at operation horizontal ladder free end operation personnel.
According to the intelligent tension-resistant wire outlet method for the power transmission line, one end of the pull rod is connected to the operation horizontal ladder, the other end of the pull rod is connected with the sleeve, when the operation horizontal ladder rotates, the lower end of the pull rod rotates along with the operation horizontal ladder, the upper end of the pull rod is fixed on the sleeve, and the sleeve can rotate relative to the rotating shaft, so that the whole pull rod passively rotates along with the operation horizontal ladder, and the strength of the operation horizontal ladder is improved. The wire outgoing method takes cross arm main material angle steel as a supporting suspension point, and adopts a windmill type rotating method for entering and exiting an electric field through an insulating supporting arm. The problem that the inward turning large-angle tension tower enters an electric field is solved, and the method is applicable to the operation of entering the electric field of the tension towers with various types and space structures. The control system of the intelligent equipotential platform of the power transmission line can realize that a motor control device and a signal transceiver are additionally arranged at an equipotential end, and the motor is controlled to rotate forwards and backwards and stop through a wireless control signal; a distance monitoring device is additionally arranged at an equipotential end of the platform, the distance between an equipotential person and a live wire is detected by means of wireless and the like, and once the distance is smaller than a set value (0.4 m), control information is sent to control the motor to stop rotating so that the equipotential person can carry out equipotential operation; the intelligent device can realize the functions of automatic wire outlet, distance monitoring, remote measurement control and the like.
The pull rods comprise two pull rods which are respectively connected with the two support upright posts of the operation horizontal ladder.
And a position sensor is arranged at the free end of the operation flat ladder.
The free end of the operation flat ladder is provided with a position sensor for detecting the actual distance between the operation flat ladder and a working point, thereby ensuring the safety distance required by operation.
The position sensor is arranged on the operation flat ladder through a universal joint.
The direction of the sensor can be flexibly adjusted as required by adopting the arrangement of the universal joint.
The position sensor is a high-precision high-real-time laser ranging sensor.
The invention also comprises a limit switch which is arranged at the motor box.
The operation flat ladder adopts a fully-insulated foam filling pipe.
The fully-insulated foam filling pipe is made of an elliptical pipe.
The strength can be improved by adopting the elliptical tube.
The lower part of the fixed end of the operation flat ladder is provided with a roller, the upper part of the transmission box below the fixed end of the operation flat ladder is provided with an annular slideway, and the roller moves in the slideway.
A transmission case refers to a case for accommodating a belt drive, or a chain drive or a gear drive.
The operation stability of the operation horizontal ladder can be improved by arranging the operation horizontal ladder.
The intelligent wire outgoing method for the tension rod of the power transmission line comprises a control system, wherein the control system comprises a foreground operation unit and a background monitoring unit, the foreground operation unit comprises a first CPU (central processing unit), a display platform and a motor driving device, the first CPU is respectively connected with a temperature and humidity sensor, an electric quantity monitoring unit, a limit switch, a position sensor, a motor current monitoring unit and a wireless communication module, and a power supply unit supplies power to all the modules; the background monitoring unit comprises a power module, a second CPU unit, a storage module, a touch screen and a wireless communication module, wherein the power module supplies power to each unit module, and the foreground operation unit and the background monitoring unit are communicated through the wireless communication module.
The first CPU unit of the foreground operation unit receives parameters and operation commands sent by the background monitoring unit through the wireless communication module, judges the action commands of the motor, determines whether the motor acts or not by combining the state of the current limit switch, drives the motor driving device to act if the motor can act smoothly, simultaneously monitors whether the motor acts in place or not through the displacement sensor and the limit switch, immediately closes the motor output and stops if the motor acts in place, and reports the working condition of the current operation elevator leveling to a control console of the control system, monitors the motor current in real time during the motor action process, prevents the motor from stalling, and protects the motor, and reporting the motor running condition to an operation console of the control system, if a motor action command is issued, the motor is in an alarm position, closing the motor drive, not performing motor action, giving an alarm, monitoring the battery power in real time by the control system, if the battery power is too low, blocking a motor action channel, not performing motor operation, reporting the power condition to the control console of the control system, prompting a user to charge, monitoring the temperature and humidity of the rotary platform in real time by the control system, integrating a temperature and humidity sensor in a front console operation unit, collecting the environmental temperature and humidity, transmitting the environmental temperature and humidity to the control system in a wireless manner, and displaying the working condition of the line device to the user visually.
The invention is provided with an electromagnetic interference prevention device at a foreground operation unit, and common-mode and differential-mode inductance X capacitors and Y capacitors are used at the inlet of the foreground operation unit to prevent common-mode and differential-mode interference caused by external power supply or motor action; the voltage dependent resistor and the air discharge tube electronic device are adopted to prevent the interference and damage of external high-voltage pulses to the control system, and the fast recoverable safety device is adopted to prevent the damage of load short circuit to the control system.
The motor adopt soft start, specifically be through adjusting motor circuit switch tube duty cycle regulation motor speed, when the motor starts, by lower duty cycle gradual transition to rated duty cycle, reduce motor circuit current variation speed, realize soft start, still adopt syllogic protection simultaneously, prevent that motor starting current from changing too fast, and stray inductance coupling between the board, produce the harm of high-voltage pulse to the system, use motor protection technique, prevent motor stall, cause the harm to motor and electrical power generating system.
Meanwhile, the external interfaces in the whole device are electrically isolated by adopting high-speed optocouplers, so that the influence of external interference on a key control core of the system is prevented.
The analog signals obtained by the sensor are differentially sampled, the influence of common-mode interference caused by a digital switch on the analog signals is reduced, and the reliability of data acquisition of the sensor is improved.
In summary, compared with the prior art, the invention has the following advantages:
the intelligent wire outgoing method for the tension pole of the power transmission line reduces the safety risk and labor intensity of live working of the power transmission line, and solves the problem that operators of the outward-turning large-angle tension pole cannot safely enter an electric field.
The intelligent outlet method for the tension rod of the power transmission line can enable equipotential maintainers to monitor the safety state of the platform in real time and operate the platform in a wireless mode.
(1) The angle steel torsion-resistant type hanging device is an angle steel hook designed according to a mechanical structure, and can overcome the torsion of a large moment generated by people carried at the tail end to the fixer, so that the rotation is realized safely and reliably;
(2) The rotary platform adopts a transmission structure of 'platform-motor-transmission-rotating shaft-rotating disc-transmission line intelligent equipotential platform', a direct current motor is integrally connected with a transmission case to ensure stable output of torque, a rotating shaft of the transmission case is connected with a gear disc, a rotating shaft gear is connected with a transmission line intelligent equipotential platform big gear disc, a small gear is driven by a motor, and a big gear is connected with the small gear and the big gear on a flat ladder rotating shaft according to a belt transmission principle, so that stable rotation of the flat ladder is realized.
(3) The insulating support arm adopts an anti-bending semi-elliptical design and a central platform stay bar reinforcement principle, overcomes the bending degree generated by the ladder, enables the ladder to rotate stably and safely at one end of a carrying person, and sends the carrying person to a working position; meanwhile, the supporting arm is an external hanging device, and the using length of the supporting arm can be selected and hung according to the field requirement.
Drawings
FIG. 1 is a functional block diagram of a foreground operating unit of the present invention.
Fig. 2 is a schematic block diagram of the background monitoring unit of the present invention.
Fig. 3 is a motor operation control circuit diagram.
Fig. 4 is a circuit diagram for preventing electromagnetic interference.
Fig. 5 is a schematic structural diagram of a tension rod outgoing tool of a power transmission line.
Fig. 6 is a top view of fig. 5.
Fig. 7 is an enlarged view of fig. 5 at a.
The reference number explains a transmission box of an operation flat ladder 1, a rotating shaft 2, a gear transmission 4, a pull rod 5, a pull rope 6, a positioning clamping groove 7, an angle steel 8 and a motor box 9.
Detailed Description
The present invention will be described in more detail with reference to examples.
Example 1
An intelligent wire outgoing method for tension rods of a power transmission line is provided, and comprises an operation flat ladder 1, a connecting device for connecting the operation flat ladder with a cross arm and a driving device for driving the operation flat ladder to rotate, wherein the driving device comprises a gear transmission device 3, a belt transmission device or a chain transmission device, a motor drives a pinion, a small belt wheel or a small chain wheel to rotate, the pinion drives a large gear, a small belt wheel or a small chain wheel to drive a large chain wheel and a large belt wheel to move through a belt or a chain, the large gear, the large chain wheel and the large belt wheel are sleeved on a shaft sleeve to drive the shaft sleeve to rotate, the shaft sleeve is rotatably sleeved on a rotating shaft 2, the shaft sleeve is connected with an inner ring of a bearing, an outer ring of the bearing is connected with the end part of the operation flat ladder to drive the operation flat ladder sleeve to rotate, the lower end of the rotating shaft is supported on a motor box 8, and a positioning clamping groove with a downward opening is arranged at the lower part of the motor box; the connecting device for connecting the operation flat ladder and the cross arm comprises two angle steels, wherein the upper part of one side edge of one angle steel is connected to the motor box, the other angle steel is movably connected in a detachable mode, when the connecting device works, one side edge of the movable angle steel is clamped into the positioning clamping groove 6 at the lower part of the motor box, the inner angle of the angle steel is clamped on the cross arm, the other side edge of the angle steel is pressed on one side edge of the other angle steel, the cross arm is clamped by the other angle steel from the opposite side, and the cross arm is tightly held by the two angle steels 7 from the opposite sides; the operation flat ladder is also provided with a pull rod 4, one end of the pull rod is connected with the operation flat ladder, the other end of the pull rod is connected with a sleeve, the sleeve can be sleeved on the rotating shaft in a rotating way relative to the rotating shaft, a pull rope 5 is also arranged on the rotating shaft, the other end of the arm rope is connected to a tower in operation, one side of the movable angle steel is clamped into a positioning clamping groove at the lower part of the motor box in operation, the inner angle of the angle steel is clamped on the cross arm, the other side of the angle steel is pressed on one side of the other angle steel, the cross arm is clamped by the other angle steel from the opposite side, and the cross arm is tightly held by the two angle steels from the opposite sides; the operation horizontal ladder on still be provided with the pull rod, the one end of pull rod links to each other with the operation horizontal ladder, the other end and a sleeve of pull rod link to each other, the sleeve pivot pivoted cover relatively in the pivot, still be provided with the stay cord in the pivot, the other end of arm rope is connected on the shaft tower at the during operation, in operation, utilize transmission line strain insulator pole to go out the connecting device of line instrument earlier with transmission line strain insulator pole play line instrument and be fixed in on the cross arm, make the operation horizontal ladder be located the cross arm side simultaneously, the operation personnel sit the end of operation horizontal ladder, back starter motor, drive arrangement work, drive arrangement drive operation horizontal ladder rotates to the drive is sat and is arrived required operating position and carry out the operation at operation horizontal ladder free end operation personnel.
The intelligent wire outgoing method for the tension rod of the power transmission line further comprises a control system, wherein the control system comprises a foreground operation unit and a background monitoring unit, the foreground operation unit comprises a CPU (central processing unit), a display platform and a motor driving device, the CPU is respectively connected with a temperature and humidity sensor, an electric quantity monitoring unit, a limit switch, a displacement sensor, a motor current monitoring unit and a wireless communication module, and a power supply unit supplies power to all the modules; the background monitoring unit comprises a power module, a CPU unit, a storage module, a touch screen and a wireless communication module, wherein each unit module of the power module supplies power, and the foreground operation unit and the background monitoring unit are communicated through the wireless communication module.
The pull rods comprise two pull rods which are respectively connected with the two support upright posts of the operation horizontal ladder. And a position sensor is arranged at the free end of the operation flat ladder. The position sensor is arranged on the operation flat ladder through a universal joint. The position sensor is a high-precision high-real-time laser ranging sensor. The operation flat ladder adopts a fully-insulated foam filling pipe. The full-insulation foam filling pipe is made of an elliptical pipe. The lower part of the fixed end of the operation flat ladder is provided with a roller, the upper part of the transmission box 9 below the fixed end of the operation flat ladder is provided with an annular slideway, and the roller moves in the slideway.
The foreground control module comprises a power supply unit, a CPU core, a motor drive, a motor current monitoring module, a displacement monitoring module, a limit switch detection module, a temperature and humidity measurement module, an electric quantity monitoring module, a wireless communication system indication module and the like, wherein the CPU core receives parameters and operation commands sent by an operation terminal through Zigbee, judges the action commands of the motor, determines whether the motor acts or not by combining the current state of the limit switch, drives a motor driver to act if the motor can act smoothly, simultaneously monitors whether the motor acts in place or not through a high-precision displacement sensor and the limit switch, immediately closes the motor output if the motor acts in place, stops the vehicle, and reports the working condition of the current rotating platform to a control console, monitors the motor current in real time in the motor action engineering, prevents the motor from being locked, protects the motor, reports the motor running condition to the control console, and improves the safety performance of the system. If the motor is in the alarm position when the motor action command is issued, the motor drive is closed, the motor action is not carried out, and the alarm is carried out. In addition, the system monitors the battery power in real time, if the battery power is too low, the motor action channel is blocked, the motor operation is not carried out, the power condition is reported to the console, and a user is prompted to charge. The system monitors the temperature and humidity of the rotating platform in real time and transmits the temperature and humidity to the control console in a wireless mode. The system indication module is used for visually indicating the working conditions of motor operation, rotary table position, battery power and the like to a user.
The background monitoring unit consists of a power supply module, a CPU, a storage module, a touch screen and a wireless transmission module. The power module converts battery voltage into system processor, FLASH, it is wireless, the required 12V of touch-sensitive screen work, 5V, 3.3V, 1.8V electricity, supply pure undisturbed power supply for the system provides, storage module includes nandflash, norflash, sdam, guarantee Linux system's normal operating, CPU chooses for use CORTEX-A9 high performance treater, satisfy the interactive and later stage upgrading demand that the system is smooth, and communicate through the parallel bus between the touch-sensitive screen, display module adopts the QT module to operate, it is mutual nimble, the interface is abundant, provide good user experience, communicate through the bus between CPU and the wireless module.
Driving a power supply voltage: DC 12-30V, applicable power: 12V upper limit 200W,24V upper limit 400W, maximum working current 30A, built-in 30A fuse.
A digital high-precision temperature and humidity sensor is adopted, a CPU interacts with the sensor through a TWI bus to acquire temperature and humidity signals in real time and monitor the temperature and humidity of a system, and the sensor adopts a patent CMOSense technology and has extremely high reliability and long-term stability.
The user uses the selector switch to adjust the working mode at the control end, the CPU of the control end monitors the current working mode in real time, and after the working mode changes, the CPU reports the current working mode to the operation end through a wireless channel to keep the synchronization with the operation end.
The rotating speed of the workbench can be adjusted by selecting a high-performance energy-saving direct-current permanent magnet motor and a control system; the rotating position is accurately positioned; the worktable is reversely self-locked.
The high-performance, high-capacity and long-service-life rechargeable battery pack has the capacity and the voltage which can temporarily regulate the voltage to 24V direct-current voltage according to the working requirement of a workbench; and the display of the residual capacity of the battery (or the integration of a chargeable function) is realized. The power has adopted the high-tech protection shield, and electric core aluminium antithetical couplet protection, as long as change the winding displacement connection method and should change into the use of many clusters, perfect stable various guarantor's household functions that charge and discharge, accurate overcharge overdischarge overcurrent and short-circuit protection, electric core hardware balance is handled, and balanced current is suitable, and the equilibrium is generated heat rationally, does not influence group battery performance, takes the fin to handle, increases the heat dissipation of MOS pipe, extension MOS pipe life-span.
A sensor:
and a high-quality position sensor or a limit switch is selected, so that the reliable start and stop of the limit position of the workbench are ensured.
A large-breadth distance detection scheme is selected, so that the sensitivity and the reliability of the safe distance are guaranteed; the probe can realize manual operation of height.
Common-mode and differential-mode inductance X capacitors and Y capacitors are used at the inlets of the operation units, so that common-mode and differential-mode interference caused by external power supply or motor action is prevented; the system adopts sub-sensitive resistors, air discharge tubes and other electronic devices to prevent interference and damage of external high-voltage pulses to the system, and adopts quick recoverable safety devices to prevent damage of load short circuit to the system.
Adopt soft start strategy to the motor, adopt 3 segmentations to protect, prevent that motor starting current from changing too fast, and stray inductance coupling between the board produces the harm of high-voltage pulse to the system, uses motor protection technique, prevents that the motor from stalling, causes the harm to motor and electrical power generating system.
5V and 3.3V adopt isolation power supply, and an external interface adopts a high-speed optical coupler to carry out electrical isolation, so that the influence of external interference on a key control core of the system is prevented.
The digital and analog are isolated, the analog signal adopts differential sampling, the influence of common mode interference caused by a digital switch on the analog signal is reduced, and the reliability of data acquisition of the sensor is improved.
The high-precision high-real-time laser ranging sensor is used in ranging, the ranging precision is 1mm, the fastest response speed is 30ms, the internal laser emits 940nm wavelength invisible light, eyes are not damaged, the problem that the infrared approaching detection sensor emits red light to disperse attention of people is solved, and the anti-interference performance of an external light source is enhanced. The distance measurement principle is as follows: the processor acquires the distance between the sensor and the reflection transmission line in real time, stops the rotation of the platform when the distance is smaller than a set threshold value, and sends out a danger alarm to prompt an operator to pay attention to the safety distance.
Intelligent control and automatic control are embodied as follows: the rotary platform monitors the voltage and current signals of a motor loop, the position limit signals of the platform, the distance measurement information of a distance sensor, the environmental temperature and humidity and other information in real time, and monitors and protects the motor in real time according to the voltage and current information of the motor loop; and (3) finishing and compensating the distance measuring sensor by using a data fusion technology through parameters such as environment temperature and humidity, and finally determining the motion and the stop of the motor by combining distance measuring data and a limit signal of the limit sensor through a reliable decision in the processor.
The positive and negative power supply of the 24V power supply of the motor loop is respectively controlled by the relay JDQ4 and the MOS tube Q210, the positive and negative rotation of the motor is controlled by the two double-pole double-throw relays JDQ1 and JDQ2, and the rotating speed of the motor is adjusted by controlling the duty ratio of the MOSFET switch. The motor is controlled to stop by controlling the switching-off of the JDQ4 and the MOSFET, the motor control mode is set through the handheld liquid crystal terminal, the automatic control mode or the manual control mode is automatically controlled, the processor is driven to act according to the information such as the motor speed and the like, the motor is set by the system, the processor collects the spacing and distance information in real time, and when the motor stop signal condition is met, the power supply of the motor is switched off, and the motor stops rotating. In the manual control mode, an operator continuously gives motor action information, the processor drives the motor to act according to the action information, and the motor is controlled to stop by combining with motor stop conditions.
The invention designs a position sensing monitoring device, arranges position sensors at multiple points, and ensures that working position (wires, hardware fittings and the like) signals are captured in real time; meanwhile, a horizontal sensing device is designed to monitor the horizontal position of the platform in real time, so that the safety and reliability of the platform are ensured;
the invention sets software limit control, can display the distance between the workbench and the working position (wires, hardware fittings and the like) on a control interface after manually adjusting and collecting data, and sends control information to control the motor to stop rotating once the distance is less than a set value (0.4 m) so as to lead equipotential personnel to carry out equipotential operation.
The terminal control system of the invention adopts a screen display control interface which has good interaction and accords with the actual needs of a working site, and realizes the centralized control and monitoring of each part of the control system based on the network communication protocol of the industrial controller. The control interface can be clearly provided with the forward rotation, the reverse rotation, the stop and the like of the workbench.
The wireless control system of the invention realizes a wireless communication mode in a strong electromagnetic environment of a high-voltage place, solves the problems of electromagnetic compatibility and anti-electromagnetic interference of the system, real-time information transmission, information checking and error correcting, safety and the like, ensures the stability and reliability of the control system, and realizes the function of the action of the equipotential personnel wireless control platform.
The power system is designed as an electric system, and the rotating speed of the workbench can be adjusted by adopting a high-performance energy-saving direct-current permanent magnet motor and a control system; the rotating position is accurately positioned; the workbench rotates reversely and is self-locked. The electric system is powered by a high-efficiency (miniature) lithium battery and is provided with a real-time electric quantity monitoring system.
The embodiment is the same as the prior art in the parts not described above.
Claims (10)
1. An intelligent outlet method for a tension rod of a power transmission line is characterized in that: the power transmission line tension rod outgoing tool comprises an operation flat ladder, a connecting device for connecting the operation flat ladder with a cross arm and a driving device for driving the operation flat ladder to rotate, wherein the driving device comprises a gear transmission device, a belt transmission device or a chain transmission device; the connecting device for connecting the operation flat ladder and the cross arm comprises two angle steels, wherein the upper part of one side edge of one angle steel is connected to the motor box, the other angle steel is movably connected in a detachable mode, when the connecting device works, one side edge of the movable angle steel is clamped into the positioning clamping groove at the lower part of the motor box, the inner angle of the angle steel is clamped on the cross arm, the other side edge of the angle steel is pressed on one side edge of the other angle steel, the cross arm is clamped by the other angle steel from the opposite side, and the cross arm is tightly held by the two angle steels from the opposite sides; the operation flat ladder on still be provided with the pull rod, the one end of pull rod links to each other with the operation flat ladder, the other end and a sleeve of pull rod link to each other, sleeve pivot pivoted cover relatively in the pivot, still be provided with the stay cord in the pivot, the other end of pull rope is connected on the shaft tower at the during operation, in operation, utilize transmission line strain insulator pole outgoing line instrument's connecting device earlier to be fixed in transmission line strain insulator pole outgoing line instrument on the cross arm, make the operation flat ladder be located the cross arm side simultaneously, the operation personnel sit the end of operation flat ladder, back starter motor, drive arrangement work, drive arrangement drive operation flat ladder rotates to the drive is sat and is reachd required operating position at operation flat ladder free end operation personnel and carry out the operation.
2. The intelligent outlet method of the tension rod of the power transmission line according to claim 1, which is characterized in that: and a position sensor is arranged at the free end of the operation flat ladder and is arranged on the operation flat ladder through a universal joint.
3. The intelligent outlet method of the tension rod of the power transmission line according to claim 2, characterized in that: the operation flat ladder adopts a fully-insulated foam filling pipe.
4. The intelligent wire outgoing method of the tension rod of the power transmission line according to claim 3, characterized in that: the fully-insulated foam filling pipe is made of an elliptical pipe.
5. The intelligent outlet method of the tension rod of the power transmission line according to claim 4, characterized in that: the lower part of the fixed end of the operation flat ladder is provided with a roller, the upper part of the transmission box below the fixed end of the operation flat ladder is provided with an annular slideway, and the roller moves in the slideway.
6. The intelligent outlet method of the tension rod of the power transmission line according to any one of claims 1 to 4, characterized in that: the intelligent wire outgoing method for the tension rod of the power transmission line comprises a control system, wherein the control system comprises a foreground operation unit and a background monitoring unit, the foreground operation unit comprises a first CPU (central processing unit), a display platform and a motor driving device, the first CPU is respectively connected with a temperature and humidity sensor, an electric quantity monitoring unit, a limit switch, a position sensor, a motor current monitoring unit and a wireless communication module, and a power supply unit supplies power to all the modules; the background monitoring unit comprises a power module, a second CPU unit, a storage module, a touch screen and a wireless communication module, wherein the power module supplies power for each unit module, and the foreground operation unit and the background monitoring unit are communicated through the wireless communication module.
7. The intelligent wire outgoing method of the tension rod of the power transmission line according to claim 6, characterized in that: the first CPU unit of the foreground operation unit receives parameters and operation commands sent by the background monitoring unit through the wireless communication module, judges the action commands of the motor, determines whether the motor acts or not by combining the state of the current limit switch, drives the motor driving device to act if the motor can act smoothly, simultaneously monitors whether the motor acts in place or not through the position sensor and the limit switch, immediately closes the motor output and stops the vehicle if the motor acts in place, reports the working condition of the current operation elevator leveling to a control console of a control system, monitors the motor current in real time during the motor action process, prevents the motor from stalling and protects the motor, and reporting the motor running condition to an operation console of the control system, if a motor action command is issued, the motor is in an alarm position, closing the motor drive, not performing motor action, giving an alarm, monitoring the battery power in real time by the control system, if the battery power is too low, blocking a motor action channel, not performing motor operation, reporting the power condition to the control console of the control system, prompting a user to charge, monitoring the temperature and humidity of the rotary platform in real time by the control system, integrating a temperature and humidity sensor in a front console operation unit, collecting the environmental temperature and humidity, transmitting the environmental temperature and humidity to the control system in a wireless manner, and displaying the working condition of the line device to the user visually.
8. The intelligent wire outgoing method of the tension rod of the power transmission line according to claim 7, characterized in that: the anti-electromagnetic interference device is arranged on the foreground operation unit, and common-mode and differential-mode inductance X capacitors and Y capacitors are used at the inlet of the foreground operation unit to prevent common-mode and differential-mode interference caused by external power supply or motor action; the voltage dependent resistor and the air discharge tube electronic device are adopted to prevent the interference and damage of external high-voltage pulses to the control system, and the fast recoverable safety device is adopted to prevent the damage of load short circuit to the control system.
9. The intelligent outlet method of the tension rod of the power transmission line according to claim 8, characterized in that: the motor adopts soft start, the rotating speed of the motor is adjusted by adjusting the duty ratio of the circuit switch tube of the motor, when the motor is started, the lower duty ratio is gradually transited to the rated duty ratio, the current change speed of the circuit of the motor is reduced, the soft start is realized, and meanwhile, three-section protection is also adopted.
10. The intelligent wire outgoing method of the tension rod of the power transmission line according to claim 9, characterized in that: and the external interfaces in the intelligent tension rod outgoing device of the power transmission line are electrically isolated by adopting high-speed optocouplers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467416.8A CN107508191B (en) | 2017-06-20 | 2017-06-20 | Intelligent wire outgoing method for tension-resistant rod of power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467416.8A CN107508191B (en) | 2017-06-20 | 2017-06-20 | Intelligent wire outgoing method for tension-resistant rod of power transmission line |
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| CN107508191A CN107508191A (en) | 2017-12-22 |
| CN107508191B true CN107508191B (en) | 2023-02-10 |
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| CN201710467416.8A Active CN107508191B (en) | 2017-06-20 | 2017-06-20 | Intelligent wire outgoing method for tension-resistant rod of power transmission line |
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| CN112468030B (en) * | 2020-10-30 | 2022-10-11 | 国网天津市电力公司 | Control circuit of automatic locking device of electric energy meter |
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| JP2000310061A (en) * | 1999-04-28 | 2000-11-07 | Murayama Doken:Kk | Scaffold for assembling steel tower and assembling method thereof |
| CN204118593U (en) * | 2014-10-31 | 2015-01-21 | 国家电网公司 | With the horizontal steering ladder of remote control hook |
| CN105322463A (en) * | 2015-11-19 | 2016-02-10 | 国家电网公司 | Insulated outlet extending horizontal ladder for tension string on ultra-high voltage transmission line |
| CN105375395A (en) * | 2015-12-17 | 2016-03-02 | 国家电网公司 | Insulation rotation ladder for +-8000kV DC circuit electrified circuit upkeep and working method |
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2017
- 2017-06-20 CN CN201710467416.8A patent/CN107508191B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000310061A (en) * | 1999-04-28 | 2000-11-07 | Murayama Doken:Kk | Scaffold for assembling steel tower and assembling method thereof |
| CN204118593U (en) * | 2014-10-31 | 2015-01-21 | 国家电网公司 | With the horizontal steering ladder of remote control hook |
| CN105322463A (en) * | 2015-11-19 | 2016-02-10 | 国家电网公司 | Insulated outlet extending horizontal ladder for tension string on ultra-high voltage transmission line |
| CN105375395A (en) * | 2015-12-17 | 2016-03-02 | 国家电网公司 | Insulation rotation ladder for +-8000kV DC circuit electrified circuit upkeep and working method |
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| CN107508191A (en) | 2017-12-22 |
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