CN110323708B - Wire short circuit joint control structure for direct current deicing - Google Patents
Wire short circuit joint control structure for direct current deicing Download PDFInfo
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- CN110323708B CN110323708B CN201910600101.5A CN201910600101A CN110323708B CN 110323708 B CN110323708 B CN 110323708B CN 201910600101 A CN201910600101 A CN 201910600101A CN 110323708 B CN110323708 B CN 110323708B
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- 238000005452 bending Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 239000012212 insulator Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 11
- 238000003825 pressing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
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- 238000012545 processing Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
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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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- 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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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Abstract
The invention discloses a wire short circuit joint control structure for direct current deicing, which comprises three sets of short circuit control devices, a short circuit joint control device and a structure feedback device, wherein the short circuit control devices comprise a first crank arm bending device, a second crank arm bending device, a contact short circuit device and a fixed connection device, the fixed connection device is fixed on a power transmission iron tower, the second crank arm bending device is connected with the fixed connection device through the first crank arm bending device, the contact short circuit device is connected with the end part of the second crank arm bending device, the short circuit control device is used for pushing the whole device to conduct direct current deicing wire short circuit work on the power transmission iron tower, the short circuit joint control device is used for controlling the automatic operation of the short circuit control device, and the structure feedback device is used for monitoring the operation state of the feedback short circuit control device. The system is relatively simple in structure, safe and reliable, performs wire short circuit aiming at the towers in the ice-covered environment, can be used for completing direct-current ice melting work, and achieves good effects.
Description
Technical Field
The invention relates to a direct-current deicing device, in particular to a lead short circuit joint control structure for direct-current deicing, and belongs to the technical field of power transmission equipment.
Background
The transmission line is an essential important component in the power system, and is used for carrying and distributing electric energy, so that the stable operation of the transmission line is one of important conditions for maintaining good social and economic development. However, most of the transmission lines are in the field environment, no special protection measures exist, various natural factors can damage the transmission lines, and line icing is one of the transmission lines.
Line icing can induce overload and galloping of the wires, and the accidents such as wire breakage, hardware damage, tower damage, continuous collapse of the transmission line and the like caused by the line icing occur, so that great damage is caused to the power grid, and a huge threat is formed. In recent 30 years, large-scale icing accidents occur all over the country, wherein the most serious ice and snow disasters occur in the early 2008, and the operation of a power grid in the south province is seriously damaged. The existing direct current deicing wire termination device is manually controlled, and is time-consuming, labor-consuming and difficult to operate. The use of a mobile dc ice melting wire termination device requires consideration of topography constraints.
At present, developing a high-efficiency and rapid direct-current deicing wire short-circuit combined control system to ensure stable operation of a power transmission line is an urgent problem to be solved in the field of operation and maintenance of the power transmission line.
Disclosure of Invention
The invention aims to solve the technical problems that: the utility model provides a wire short circuit allies oneself with accuse structure for direct current ice-melt, it is a simple structure relatively, safe and reliable carries out the wire short circuit to the shaft tower under the icing environment to can utilize this system to accomplish direct current ice-melt work, the effectual above-mentioned problem that exists that has solved.
The technical scheme of the invention is as follows: the utility model provides a wire short circuit allies oneself with accuse structure for direct current ice-melt, it includes three sets of short circuit controlling means, short circuit allies oneself with accuse device and structure feedback device, short circuit controlling means includes first crank arm bending device, second crank arm bending device, contact short circuit device and fixed connection device, and fixed connection device fixes on the transmission tower, and second crank arm bending device is connected with fixed connection device through first crank arm bending device, and contact short circuit device connects the tip at second crank arm bending device, short circuit controlling means is used for promoting whole device to carry out direct current ice-melt's wire short circuit work on the transmission tower, and short circuit allies oneself with controlling means and be used for controlling short circuit controlling means's automatic operation, and structure feedback device is used for monitoring feedback short circuit controlling means's running state.
The fixed connection device comprises a main installation table, a fixed disc, a fixed bolt, an isolation insulator, a rod core and a support column, wherein the fixed disc is installed on the main installation table through the fixed bolt, the main installation table is connected to an iron tower, the isolation insulator is installed on the rod core, and the rod core is connected with the fixed disc and is connected with the support column in a plug-in mode to provide supporting force for the whole system.
The first crank arm bending device comprises a supporting plate, a rotating shaft fixing block, a swinging arm, a fixing shaft, a first lever arm fixing shaft, a fixed U-shaped sleeve ring, a first connecting rod, a connecting shaft, a second connecting rod, a hinged support, a push rod control head, a push rod, a wire coil, a stranded wire, a built-in speed reducer, a motor, a rotor and a first crank arm.
The second crank arm bending device comprises a first U-shaped fixing plate, a bearing plate, an electric push rod connector, a second U-shaped fixing plate, a rotating shaft, a U-shaped swing arm, a limiting ring, a crank arm limiting rod, a U-shaped swing arm connecting rod, a second crank arm fixing turntable and a second crank arm, wherein the first U-shaped fixing plate is fixedly connected to the end part of the first crank arm, the first U-shaped fixing plate is hinged to the second U-shaped fixing plate through the rotating shaft, the bearing plate is fixed to the upper side of the first U-shaped fixing plate and used for supporting and fixing the electric push rod, one end of the electric push rod connector is connected with the other end of the electric push rod and is connected with the U-shaped swing arm connecting rod, the lowest end of the second U-shaped fixing plate is connected with the crank arm limiting rod through the crank arm limiting rod, the electric push rod drives the U-shaped swing arm to rotate on the vertical surface, the second crank arm fixing turntable is connected with the rotating shaft and is arranged on the side surface of the second U-shaped fixing plate, and the limiting ring is arranged on the upper part of the second U-shaped fixing plate through the limiting ring fixing hole, and the second crank arm penetrates through the second crank arm limiting ring to limit track and is fixed to the second crank arm.
The blocking contact short-circuit device 6 comprises an H-shaped contact, a spring, a sliding block, a contact connecting buckle, a contact bearing table and a drainage wire, wherein the contact bearing table is fixedly connected to the end part of a second crank arm, two parts of the H-shaped contact are hinged through the contact connecting buckle, the upper part of the H-shaped contact is smooth and opened to facilitate grabbing the wire, the spring is arranged on the lower side of the H-shaped contact, when the H-shaped contact is in short circuit with the wire, the H-shaped contact provides grabbing force, the sliding block is arranged on the contact bearing table and is connected with the lower end of the H-shaped contact, the contact bearing table is provided with a groove for sliding the lower side of the H-shaped contact, the sliding block is connected with the drainage wire to guide short-circuit current, the wire is arranged inside the second crank arm and led out from the second crank arm fixing turntable, and three-phase interconnection of the drainage wire is carried out through a cross arm insulator arranged on a power transmission tower and the second crank arm fixing turntable of the upper layer and lower layer.
The beneficial effects of the invention are as follows: compared with the prior art, the invention adopts the technical scheme that the invention combines the technologies of electromechanical integration, mechanical transmission and the like, and has the following advantages compared with the prior wire short circuit technology:
1. automatic operation can be realized, the short circuit speed is high, and time and labor are saved;
2. the joint control short circuit technology can realize the mutual short circuit of a plurality of lines;
3. the automation degree is high, the climbing operation of constructors is avoided, and the life safety of the constructors is ensured;
4. the size of the crank arm is prolonged, and the conducting wire short circuit can be carried out on different types of power transmission towers;
5. carrying out safety pre-warning on the system structure;
6. simple and reasonable structure, reliable performance, convenient maintenance and low manufacturing difficulty.
Drawings
FIG. 1 is a schematic illustration of the installation of the present invention on a pylon;
fig. 2 is a schematic structural diagram of a shorting operation device according to the present invention;
FIG. 3 is a schematic view of a first crank arm bending device according to the present invention;
FIG. 4 is a schematic view of a structure of a fixing and connecting device according to the present invention;
FIG. 5 is a schematic view of a second arm bending apparatus according to the present invention;
FIG. 6 is a second schematic diagram of a second arm bending apparatus according to the present invention;
fig. 7 is a schematic view of a contact shorting device according to the present invention;
fig. 8 is a circuit diagram of a shorting-coupled control device of the present invention;
fig. 9 is a schematic flow chart of the structural feedback device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings of the present specification.
Example 1: as shown in fig. 1-9, the wire short circuit joint control structure for direct current ice melting comprises three sets of short circuit control devices 1, a short circuit joint control device and a structure feedback device, wherein the short circuit control devices 1 comprise a first crank arm bending device 4, a second crank arm bending device 5, a contact short circuit device 6 and a fixed connection device 7, the fixed connection device 7 is fixed on a power transmission tower, the second crank arm bending device 5 is connected with the fixed connection device 7 through the first crank arm bending device 4, the contact short circuit device 6 is connected to the end part of the second crank arm bending device 5, the short circuit control devices 1 are used for pushing the whole device to perform direct current ice melting wire short circuit work on the power transmission tower, the short circuit joint control devices are used for controlling automatic operation of the short circuit control devices 1, and the structure feedback device is used for monitoring the operation state of the feedback short circuit control devices 1.
The first crank arm bending device 4 and the second crank arm bending device 5 provide ascending and bending power, the control system moves to obtain an optimal position, and the whole system can be ensured to carry out wire termination work on a power transmission tower.
Further, the fixed connection device 7 comprises a main mounting table 48, a fixed disc 49, a fixed bolt 50, an isolating insulator 51, a rod core 52 and a supporting column 53, wherein the fixed disc 49 is mounted on the main mounting table 48 through the fixed bolt 50, the main mounting table 48 is connected to the iron tower, the isolating insulator 51 is mounted on the rod core 52, and the rod core 52 is connected with the fixed disc 49 and is connected with the supporting column 53 in a plug-in mode to provide supporting force for the whole system.
Further, the first crank arm bending device 4 comprises a supporting plate 8, a rotating shaft fixing block 9, a swinging arm 10, a fixing shaft 13, a first lever arm fixing shaft 14, a fixed U-shaped sleeve 15, a first connecting rod 16, a connecting shaft 17, a second connecting rod 18, a hinged support 19, a push rod control head 20, a push rod 21, a wire coil 22, a stranded wire 23, a built-in speed reducer 24, a motor 25, a rotor 26 and a first crank arm 28, wherein the rotating shaft fixing block 9 is fixed on two sides of the supporting plate 8, the supporting plate 8 is fixedly connected to the top end of the supporting column 53, the fixing shaft 13 is used for connecting the swinging arm 10 with the rotating shaft fixing blocks 9 on two sides through a swinging arm lower connecting hole 12, the upper part of the swinging arm 10 is fixed with the first lever arm fixing shaft 14 through a swinging arm upper connecting hole 11, the fixed U-shaped sleeve 15 is wrapped on the first lever arm fixing shaft 14 to prevent the first lever arm fixing shaft 14 from generating axial displacement, the lower part of the fixed U-shaped sleeve 15 is wrapped on the fixing shaft 13, but the fixed shaft 13 can be kept to rotate, one end of the first connecting rod 16 is fixed on the fixed U-shaped sleeve 15, the other end is hinged with the second connecting rod 18 through the connecting shaft 17, the connecting shaft 17 can enable the first connecting rod 16 and the second connecting rod 18 to move in a vertical plane, the bottom of the second connecting rod 18 is hinged with the hinged support 19, the push rod control head 20 is hinged with the connecting shaft 17, the push rod 21 pushes the push rod control head 20 to move in a horizontal direction, the second connecting rod 18, the first connecting rod 16 and the fixed U-shaped sleeve 15 are driven to move in a plumb direction, so that the first crank arm 28 generates bending motion, the stranded wire 23 is connected with the push rod 21 through the connecting hole 27 and is wound and fixed on the wire coil 22, the motor 25 is provided with the built-in speed reducer 24 to control the rotating speed of the rotor 26, the lower part of the first crank arm 28 is connected with the first lever arm fixed shaft 14, the upper part is connected with the second crank arm bending device 5, the motor 25 is connected to a main mounting table 48.
Further, the second crank bending device 5 includes a first U-shaped fixing plate 29, a supporting plate 30, an electric push rod 31, an electric push rod connector 32, a second U-shaped fixing plate 33, a rotating shaft 34, a U-shaped swing arm 35, a limiting ring 36, a crank limiting rod 38, a U-shaped swing arm connecting rod 39, a second crank fixing turntable 40 and a second crank 41, wherein the first U-shaped fixing plate 29 is fixedly connected to the end of the first crank 28, the first U-shaped fixing plate 29 is hinged to the second U-shaped fixing plate 33 through the rotating shaft 34, the supporting plate 30 is fixed to the upper side of the first U-shaped fixing plate 29 and used for supporting and fixing the electric push rod 31, one end of the electric push rod connector 32 is connected with the other end of the electric push rod 31, the lowest end of the second U-shaped swing arm fixing plate 33 is connected with the U-shaped connecting rod 39 through the crank limiting rod 38, the second U-shaped swing arm 35 is mounted at the center of the rotating shaft 34, the electric push rod 31 drives the U-shaped swing arm 35 to rotate on the vertical connecting head, the second crank 40 is connected with the second crank fixing turntable 36 through the limiting ring 36, and the second crank 36 is mounted on the side of the second crank fixing ring 36 and the second crank fixing ring 41 passes through the limiting ring 36.
Further, the contact shorting device 6 includes an H-shaped contact 42, a spring 43, a slider 44, a contact engagement buckle 45, a contact support platform 46 and a drainage wire 47, where the contact support platform 46 is fixedly connected to an end of the second crank 41, two parts of the H-shaped contact 42 are hinged by the contact engagement buckle 45, a smooth opening is adopted on an upper part of the H-shaped contact 42 to facilitate grabbing the wire, the spring 43 is installed on a lower side of the H-shaped contact 42, when the H-shaped contact 42 is shorted with the wire, the H-shaped contact 42 provides grabbing force, the slider 44 is installed on the contact support platform 46 and connected with a lower end of the H-shaped contact 42, the contact support platform 46 is provided with a groove, so that the H-shaped contact 42 slides under the slider 44 and the drainage wire 47 to guide a short-circuit current, and the wire 47 is arranged inside the second crank 41 and led out from the second crank fixing turntable 40, and is connected with three phases of the drainage wire 47 by a cross-arm insulator installed on the power transmission cross tower and the second crank fixing turntable 40 on the upper and lower layers.
Further, the short circuit joint control device is used for controlling the short circuit control device 1 to realize the wire short circuit work of DC deicing on the power transmission tower.
The short circuit combined control device comprises a first motor 55, a second motor 56, a third motor 57, a first thermal relay 58, a second thermal relay 59, a third thermal relay 60, a first contactor main contact 61, a second contactor main contact 62, a third contactor main contact 63, a main circuit protection fuse 64, a power switch 65, a work indicator 66, a secondary circuit protection fuse 67, a thermal relay auxiliary normally closed contact 68, a first motor forward rotation starting button 69, a first forward rotation interlocking contact 70, a first forward rotation contactor coil 71, a first forward rotation self-locking contact 72, a first motor reverse rotation starting button 73, a first reverse rotation interlocking contact 74, a first reverse rotation contactor coil 75, a first reverse rotation self-locking contact 76, a second motor forward rotation starting button 77, a second forward rotation interlocking contact 78, a second forward rotation contactor coil 79, a first forward rotation self-locking contact 80, a second motor reverse rotation starting button 81, a second reverse rotation contactor 82, a second reverse rotation contactor coil 83, a second reverse rotation self-locking contact 84, a third motor forward rotation starting button 85, a third motor reverse rotation interlocking contact 85, a third forward rotation interlocking contact 88, a third motor reverse rotation interlocking contact 88 and a third motor reverse rotation interlocking contact 90.
The first thermal relay 58, the second thermal relay 59, and the third thermal relay 60 protect the motor from an overcurrent. The main circuit protection fuse 64 performs short-circuit protection on the main circuit, the sub-circuit protection fuse 67 performs short-circuit protection on the sub-circuit, the thermal relay auxiliary normally-closed contact 68 performs overload protection on the motor, and the power switch 65 performs power isolation. The operation indicator lamp 66 is used to see whether the motor is in operation.
Pressing the power switch 65 energizes the main circuit, pressing the motor forward start button 69 first breaks the motor forward start button 74 to interlock the motor forward start button, the motor forward start button 71 is energized, the motor forward start button 61 is closed, and the motor 55 rotates forward. The self-locking action of the number one forward self-locking contact 72 ensures that the number one motor 55 continuously rotates in the forward direction. Pressing the motor reversal start button 73 first breaks the motor reversal interlock contact 70 to interlock the motor reversal contact coil 71, the motor reversal contact coil 75 is energized, the motor reversal contact main contact 61 is closed, power is supplied to the motor, and the motor 55 is reversed. The self-locking action of the number one reversing self-locking contact 76 ensures that the number one motor 55 is continuously reversed.
Pressing the motor forward start button 77 first breaks the motor forward interlock contact 82 to interlock the motor forward contact 83, the motor forward contact coil 79 is powered on, the motor main contact 62 is closed, and power is supplied to the motor, and the motor 56 rotates forward. The self-locking action of the forward rotation self-locking contact 80 ensures that the motor 55 is continuously rotated forward. Pressing the motor reversal start button 81 first breaks the motor reversal interlock contact 78 to interlock the motor reversal contact coil 79, the motor reversal contact coil 83 is energized, the motor reversal contact main contact 62 is closed, power is supplied to the motor, and the motor 56 is reversed. The self-locking action of the No. two reversing self-locking contact 84 ensures that the No. two motor 56 is continuously reversing.
Pressing the motor No. three forward rotation start button 85 firstly breaks the motor No. three reverse rotation interlocking contact 90 to interlock the motor No. three reverse rotation contact coil 91, the contactor No. three forward rotation coil 87 is electrified, the contactor No. three main contact 63 is closed, a power supply is introduced for the motor, and the motor No. three 57 rotates forward. The self-locking action of the No. three forward rotation self-locking contact 88 ensures that No. three motor 57 is continuously rotated forward. Pressing the motor No. three reverse start button 89 first breaks the motor No. three forward interlock contact 86 to interlock the motor No. three forward contact coil 87, the motor No. three reverse contactor coil 91 is powered, the motor No. three main contact 63 is closed, power is introduced to the motor, and the motor No. three 57 is reversed. The self-locking action of the No. three reversing self-locking contact 92 ensures continuous reversing of the No. three motor 57.
The structure feedback device is used for monitoring the position of the icing wire so that the system can carry out wire short circuit work and the structure safety detection feedback of the whole system.
The structure feedback device comprises a visual camera 93, a stress sensor 94, an acceleration sensor 95, a signal collecting module 96, an alarm device 97 and a signal processing module 98.
The visual camera 93 is installed on the upper portion of the second U-shaped fixing plate 33, and is used for monitoring the position of the ice-covered wire, so that the whole system can be controlled to accurately short the wire. The stress sensor 94 and the acceleration sensor 95 are installed on the first crank arm 28 and the supporting column 53 so as to monitor stress values and acceleration values of important positions of the system, the signal collecting module 96 collects the stress values and the acceleration values and transmits the stress values and the acceleration values to the signal processing module 98, and when the stress values and the acceleration values of the system exceed the design range, the stress values and the acceleration values are transmitted to the alarm device 97 and alarm signals are sent out, so that safe and stable operation of the system is ensured.
The working process of the invention is as follows:
firstly, all components of the system are installed and connected well, and are fixed on the side face of a power transmission tower through a main installation table. The motor is started to control the first crank arm bending device to move on the vertical plane, and the proper position is adjusted. And starting the electric push rod to control the first crank arm bending device to move on the vertical plane, and adjusting the proper position by means of the camera of the structure feedback device. And jointly controlling the motor and the electric push rod, and shorting the contact shorting device with the ice-covered wire. The short circuit joint control device is used for carrying out the short circuit work of the three circuits. When wind load exists, the structural form is regulated and controlled according to the structural feedback device, so that the safe operation of the system is ensured.
Taking a drum-type power transmission tower as an example, the working processes of the short circuit control device 1, the short circuit joint control device and the structure feedback device are briefly described by using fig. 1-9:
firstly, all components of the system are installed and connected well, and are fixed on the side face of a power transmission tower through a main installation table. The power supply is started. The ice-covered wire position is monitored by means of a visual camera 93. The motor forward rotating button is started to control the first crank arm bending device 4 to move on the vertical plane, the rotor 26 drives the wire coil 22 to rotate, and the stranded wire 23 is wound on the wire coil 22 and pulls the push rod 21. The push rod 21 pushes the push rod control head 20 to move in the horizontal direction, and at this time, the push rod control head 20 pulls the connection shaft 17 to move downward. The connecting shaft 17 can enable the first connecting rod 16 and the second connecting rod 18 to move around the hinge support 19 in the vertical plane. The upper part of the swing arm 10 is fixed with the first lever arm fixing shaft 14 through the swing arm upper connecting hole 11, and the fixed U-shaped lantern ring 15 wraps the first lever arm fixing shaft 14 to drive the first crank arm 28 to rotate at the fixing shaft 13 through the swing arm lower connecting hole 12. The first crank arm 28 is rotated by an angle of no more than 90 degrees. The motor reversing button is started to control the first crank bending device 4 to move on the vertical plane, the motor is reversed to release the stranded wire 23, and the first crank bending device 4 moves downwards under the action of gravity. The first crank arm bending device 4 is controlled to stop the motor when in place.
The electric push rod is started to control the second crank arm bending device 5 to move on the vertical plane, when the electric push rod 31 stretches, the electric push rod connector 32 pushes the U-shaped swing arm connecting rod 39, and the U-shaped swing arm connecting rod 39 drives the rotating shaft 34 to rotate. The second crank arm fixing dial 40 is connected to the rotation shaft 34 and is installed at a side of the second U-shaped fixing plate 33. The rotation shaft 34 rotates to drive the second crank arm fixing turntable 40 to rotate on the vertical plane, the limiting ring 36 is installed on the upper portion of the second U-shaped fixing plate 33 by utilizing the limiting ring fixing hole 37, the second crank arm 41 penetrates through the limiting ring 36 and is installed on the second crank arm fixing turntable 40, and when the second crank arm 41 rotates, the limiting ring 36 can control the maximum rotation angle of the second crank arm 41. The electric push rod 31 is contracted and self gravity is utilized to complete the rotary motion of the second crank bending device 5, the bottommost end of the second U-shaped fixed plate 33 is connected through the crank limiting rod 38, and the maximum rotary angle of the second U-shaped fixed plate 33 is controlled. And (5) adjusting the first crank arm bending device 4 and the second crank arm bending device 5 to perform rotary motion, and finding the optimal short-circuit position of the ice-covered wire.
When the H-shaped contact 42 is in short circuit with the wire, the contact support table 46 slides in the groove, the spring 43 is in a stretched state, and the ice-covered wire is fixed inside the H-shaped contact 42 by using elastic force. The slide 44 is connected to the drainage wire 47 and led out of the second crank arm fixing turntable 40, and the drainage wire 47 is connected to the second crank arm fixing turntable 40 through a cross arm insulator 54 mounted on the cross arm of the pylon. The control short circuit combined control device 2 is used for controlling the short circuit control device 1 to short the icing wire by starting and closing the motor and the electric push rod. The stress sensor 94 and the acceleration sensor 95 monitor stress values and acceleration values of important positions of the system, the signal collection module 96 collects the stress values and the acceleration values and transmits the stress values and the acceleration values to the signal processing module 98, and when the stress values and the acceleration values of the system exceed the designed range, the stress values and the acceleration values are transmitted to the alarm device 97 and alarm signals are sent out, so that safe and stable operation of the system is ensured.
The present invention is not described in detail in the present application, and is well known to those skilled in the art. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (3)
1. A wire short circuit allies oneself with accuse structure for direct current ice-melt, its characterized in that: the novel electric power transmission tower comprises three sets of short circuit control devices (1), a short circuit joint control device and a structure feedback device, wherein the short circuit control devices (1) comprise a first crank arm bending device (4), a second crank arm bending device (5), a contact short circuit device (6) and a fixed connection device (7), the fixed connection device (7) is fixed on the electric power tower, the second crank arm bending device (5) is connected with the fixed connection device (7) through the first crank arm bending device (4), the contact short circuit device (6) is connected at the end part of the second crank arm bending device (5), the short circuit control device (1) is used for pushing the whole device to conduct direct current deicing wire short circuit work on the electric power tower, the short circuit joint control device is used for controlling automatic operation of the short circuit control device (1), and the structure feedback device is used for monitoring the operation state of the feedback short circuit control device (1); the fixed connection device (7) comprises a main installation table (48), a fixed disc (49), a fixed bolt (50), an isolation insulator (51), a rod core (52) and a support column (53), wherein the fixed disc (49) is installed on the main installation table (48) through the fixed bolt (50), the main installation table (48) is connected to an iron tower, the isolation insulator (51) is installed on the rod core (52), and the rod core (52) is connected with the fixed disc (49) and is connected with the support column (53) in an inserting mode to provide supporting force for the whole system; the first crank arm bending device (4) comprises a supporting plate (8), a rotating shaft fixing block (9), a swinging arm (10), a fixing shaft (13), a first lever arm fixing shaft (14), a fixing U-shaped lantern ring (15), a first connecting rod (16), a connecting shaft (17), a second connecting rod (18), a hinged support (19), a push rod control head (20), a push rod (21), a wire coil (22), a stranded wire (23), a built-in speed reducer (24), a motor (25), a rotor (26) and a first crank arm (28), wherein the rotating shaft fixing block (9) is fixed on two sides of the supporting plate (8), the supporting plate (8) is fixedly connected to the top end of a supporting column (53), the fixing shaft (13) is used for connecting the swinging arm (10) and the rotating shaft fixing block (9) on two sides through a swinging arm lower connecting hole (12), the upper part of the swinging arm (10) is fixed with the first lever arm fixing shaft (14) through a swinging arm upper connecting hole (11), the fixing U-shaped lantern ring (15) is wrapped on the first lever arm fixing shaft (14) to prevent the first lever arm (14) from generating axial displacement, the fixing U-shaped lantern ring (15) is wrapped on the first lever arm fixing shaft (14), the fixing shaft (13) is wrapped on the lower part of the fixing U-shaped lantern ring (15) and can be fixed on one end of the connecting rod (16), one end is articulated with No. two connecting rods (18) through connecting axle (17), connecting axle (17) can make No. one connecting rod (16) and No. two connecting rods (18) in the perpendicular motion, no. two connecting rods (18) bottom is articulated with hinge support (19), push rod control head (20) are articulated with connecting axle (17), push rod (21) promote push rod control head (20) and move in the horizontal direction, thereby drive No. two connecting rods (18), no. one connecting rod (16) and fixed U type lantern ring (15) move in the plumb direction and make first crank arm (28) produce crooked motion, stranded conductor (23) are connected with push rod (21) through connecting hole (27), twine and fix on drum (22), motor (25) are installed built-in reduction gear (24) and are controlled the rotational speed of rotor (26), first crank arm (28) lower part is connected with first lever arm fixed axle (14), upper portion and second crank arm bending device (5) are connected, motor (25) are connected to on main mount table (48).
2. The wire shorting joint control structure for direct current deicing according to claim 1, wherein: the second crank arm bending device (5) comprises a first U-shaped fixing plate (29), a bearing plate (30), an electric push rod (31), an electric push rod connector (32), a second U-shaped fixing plate (33), a rotating shaft (34), a U-shaped swing arm (35), a limiting ring (36), a crank arm limiting rod (38), a U-shaped swing arm connecting rod (39), a second crank arm fixing turntable (40) and a second crank arm (41), wherein the first U-shaped fixing plate (29) is fixedly connected to the end part of the first crank arm (28), the first U-shaped fixing plate (29) and the second U-shaped fixing plate (33) are hinged through a rotating shaft (34), the bearing plate (30) is fixed on the upper side of the first U-shaped fixing plate (29) and used for supporting and fixing the electric push rod (31), one end of the electric push rod connector (32) is connected with the electric push rod (39), the lowest end of the second U-shaped swing arm fixing plate (35) is connected with the crank arm limiting rod (38), the maximum rotating angle of the second U-shaped fixing plate (29) is controlled, the U-shaped fixing plate (35) is arranged at the center of the rotating shaft (34) to drive the second swing arm (35) to rotate vertically, and the rotating shaft (35) is fixedly connected to the rotating shaft (34), the second crank arm (41) passes through the limiting ring (36) and is arranged on the second crank arm fixing turntable (40), and the limiting ring (36) is used for restraining the movement track of the second crank arm (41).
3. The wire shorting joint control structure for direct current deicing according to claim 1, wherein: the contact short-circuit device (6) comprises an H-shaped contact (42), a spring (43), a sliding block (44), a contact connecting buckle (45), a contact bearing table (46) and a drainage wire (47), wherein the contact bearing table (46) is fixedly connected to the end part of the second crank arm (41), two parts of the H-shaped contact (42) are hinged through the contact connecting buckle (45), the upper part of the H-shaped contact (42) adopts a smooth opening to facilitate grabbing the wire, the spring (43) is arranged on the lower side of the H-shaped contact (42), when the H-shaped contact (42) is in short circuit with the wire, the grabbing force is provided for the H-shaped contact (42), the sliding block (44) is arranged on the contact bearing table (46) and is connected with the lower end of the H-shaped contact (42), the contact bearing table (46) is provided with a groove, the sliding block (44) is connected with the drainage wire (47) to be used for guiding short-circuit current, the drainage wire (47) is arranged inside the second crank arm (41) and led out from the second crank arm fixing turntable (40), and the three-phase transmission wire is connected with the second cross arm (40) through the upper insulator and the lower layer of the upper cross arm fixing turntable (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600101.5A CN110323708B (en) | 2019-07-04 | 2019-07-04 | Wire short circuit joint control structure for direct current deicing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600101.5A CN110323708B (en) | 2019-07-04 | 2019-07-04 | Wire short circuit joint control structure for direct current deicing |
Publications (2)
| Publication Number | Publication Date |
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| CN110323708A CN110323708A (en) | 2019-10-11 |
| CN110323708B true CN110323708B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910600101.5A Active CN110323708B (en) | 2019-07-04 | 2019-07-04 | Wire short circuit joint control structure for direct current deicing |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111509647B (en) * | 2020-04-27 | 2021-04-27 | 东北电力大学 | Automatic short circuit joint control device for direct-current deicing of transmission conductor |
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| KR100876417B1 (en) * | 2008-08-29 | 2008-12-29 | 주식회사 부흥기술단 | Arcing horn apparatus for combining jumper support of power-transmission line |
| CN201605048U (en) * | 2009-10-27 | 2010-10-13 | 大连联重科技有限公司 | Adjoining mechanism of tippler |
| CN109494670A (en) * | 2018-08-16 | 2019-03-19 | 金华八达集团有限公司科技信息分公司 | A kind of power line DC ice-melting short-circuit device and method |
| CN109687376A (en) * | 2019-03-04 | 2019-04-26 | 贵州电网有限责任公司 | A kind of DC ice melting short circuit control structure |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100876417B1 (en) * | 2008-08-29 | 2008-12-29 | 주식회사 부흥기술단 | Arcing horn apparatus for combining jumper support of power-transmission line |
| CN201605048U (en) * | 2009-10-27 | 2010-10-13 | 大连联重科技有限公司 | Adjoining mechanism of tippler |
| CN109494670A (en) * | 2018-08-16 | 2019-03-19 | 金华八达集团有限公司科技信息分公司 | A kind of power line DC ice-melting short-circuit device and method |
| CN109687376A (en) * | 2019-03-04 | 2019-04-26 | 贵州电网有限责任公司 | A kind of DC ice melting short circuit control structure |
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| CN110323708A (en) | 2019-10-11 |
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