CN112271683A - High tension transmission line defroster - Google Patents
High tension transmission line defroster Download PDFInfo
- Publication number
- CN112271683A CN112271683A CN202011317486.3A CN202011317486A CN112271683A CN 112271683 A CN112271683 A CN 112271683A CN 202011317486 A CN202011317486 A CN 202011317486A CN 112271683 A CN112271683 A CN 112271683A
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- connecting rod
- back plate
- roller
- arc
- groove
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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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- 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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- Production, Working, Storing, Or Distribution Of Ice (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention provides a deicing device for a high-voltage transmission line, which comprises a back plate and a first connecting rod, wherein the back plate and the first connecting rod are in rotary connection, and the deicing device further comprises: one end of the second connecting rod is rotatably connected with one end of the first connecting rod, and the other end of the second connecting rod is provided with a hammer body; the arc-shaped through groove is formed in the back plate, and track points of the arc-shaped through groove are gradually close to the second connecting rod from bottom to top; the lifting component is arranged on the back plate and drives the end part of the first connecting rod to move along the arc-shaped through groove from bottom to top, and when the lifting component moves to the extreme, the first connecting rod is disconnected with the component. Compared with the prior art, the electric wire section back knocking device is different from the prior art, the operation mode that the ice layer is scraped by the traditional mechanical deicer is changed into a hammering mode, the ice layer attached to the electric wire is effectively and quickly knocked out, the electric wire section back knocking device is applicable to most occasions, the walking mechanism provided by the application can effectively push the back of the electric wire section during knocking, and the force of an ice knocking hammer can completely act on the ice layer.
Description
Technical Field
The invention relates to the field of machinery, in particular to a deicing device for a high-voltage transmission line.
Background
Because high-voltage transmission lines are generally erected at high altitude, certain regions in the north and south of China are very cold in winter, and certain regions cause the phenomenon that the overhead power transmission lines of the electric power are frozen due to specific meteorological reasons. When the ice layer reaches a certain thickness, the ice layer must be removed, otherwise, the power transmission line is broken by pressure to cause power failure accidents, and industrial production and life are seriously influenced.
In the prior art, in order to solve the problem, three deicing modes are mainly adopted, namely electric heating deicing, manual deicing and mechanical deicing. Wherein:
firstly, the principle of the electric heating ice melting is that a user end of a power transmission line is short-circuited, power supply voltage is reduced through a step-down transformer, a current which is much larger than a normal power supply current is provided for the power transmission line, and a lead generates a large amount of heat to melt an ice layer covered on the surface of the lead. The price of the special transformer is about hundreds of thousands of RMB, and the utilization rate is extremely low. Therefore, the ice melting by using the current heating has the characteristics of needing special equipment and cutting off the power supply to melt the ice, having great energy consumption and huge investment and being generally applied to a main power network.
Secondly, the ice on the surface of the wire is removed by a manual method, which does not require special equipment but is inefficient. The deicing system is generally applied to non-backbone power networks such as professional power networks of oil fields, but the deicing task cannot be basically completed on power transmission lines with large span, particularly mountain stream positions.
And finally, mechanical deicing is realized, wherein an automatic travelling mechanism is mainly used for driving a deicer to directly scrape off an ice layer condensed on the electric wire. However, such mechanical deicers still suffer from problems, such as excessive resistance, overload of the driving motor, or failure of the transmission lock when the ice layer on the wire is thick or the ice edge is long.
Disclosure of Invention
In view of the above, the invention aims to provide a deicing device for a high-voltage transmission line, which uses knocking instead of scraping to solve the problems that the existing mechanical deicer is too large in resistance and easy to clamp.
The technical scheme of the invention is as follows:
the utility model provides a high tension transmission line defroster, includes backplate and first connecting rod, and both are for rotating the connection, still include: one end of the second connecting rod is rotatably connected with one end of the first connecting rod, and the other end of the second connecting rod is provided with a hammer body; the arc-shaped through groove is formed in the back plate, and track points of the arc-shaped through groove are gradually close to the second connecting rod from bottom to top; the lifting component is arranged on the back plate and drives the end part of the first connecting rod to move along the arc-shaped through groove from bottom to top, and when the lifting component moves to the extreme, the first connecting rod is disconnected with the component. And removing the ice in a knocking mode.
Further, the rod body of the second connecting rod is connected with one end of the first elastic element, and the other end of the first elastic element is a fixed end. A greater impact force can be provided.
Further, the liftable component includes vertical linear electric motor and the shifting block of arranging, the shifting block sets up linear electric motor's telescopic shaft's bottom, first connecting rod is kept away from the one end of second connecting rod is equipped with and passes the round pin that the arc led to the groove, but the shifting block overlaps with the round pin. The shifting block is matched with the pin, so that simple harmonic impact force can be provided for the hammer body.
Further, the backboard is provided with a rotatable cam, the cam is positioned on one side of the linear motor, and the offset degree of the linear motor towards the direction far away from the cam can be adjusted through the rotation of the cam. The impact force can be adjusted.
Further, linear electric motor with the opposite side that the cam is relative is equipped with second elastic element, second elastic element's one end with linear electric motor butt, the other end is the stiff end.
Furthermore, a first contact sensor is arranged on one side of the linear motor close to the cam, and a second contact sensor is arranged on the other side of the linear motor.
Further, the rod body of the second connecting rod is rotatably connected with the end part of a third connecting rod, and the other end of the third connecting rod is rotatably connected with the back plate.
Further, still be equipped with first gyro wheel and second gyro wheel on the backplate, first gyro wheel and second gyro wheel are arranged from top to bottom, the bottom and the telescopic shaft of elevator motor of second gyro wheel are connected.
Further, the back plate is provided with a fixing shaft, and the fixing shaft partially extends out of the back plate and is connected with one end, far away from the second connecting rod, of the first elastic element.
Further, the moving surfaces of the first roller and the second roller are provided with grooves.
The invention has the beneficial effects that:
the electric wire section back knocking device is different from the prior art, the operation mode that the ice layer is scraped by the traditional mechanical deicer is changed into a hammering mode, the ice layer attached to an electric wire is effectively and quickly knocked out, the force for knocking the ice can be continuously switched, the electric wire section back knocking device is applicable to most occasions, the walking mechanism provided by the application can effectively push the back of the electric wire section during knocking, and the force for knocking the ice can completely act on the ice layer.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view (forward direction) of the present invention;
FIG. 2 is a schematic structural view (back side) of the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
The embodiment provides a deicing device for high-voltage transmission lines, which comprises a back plate 1, a first connecting rod 2, a second connecting rod 3, a third connecting rod 4, a hammer body 5, a first elastic element 6, an arc-shaped through groove 7, a pin 8, a lifting motor 9, a second roller 10, a first roller 11, a fixed shaft 12, a linear motor 14, a cam 15, a rotating motor 16, a second elastic element 17, a second contact sensor 18, a first contact sensor 19 and a shifting block 20, as shown in fig. 1 and 2.
Wherein the first rollers 11 and the second rollers 10 are arranged up and down and are arranged on the front surface of the back plate 1, the number of the first rollers 11 is two, and the second rollers 10 are located between the two first rollers 11. A groove having a shape similar to that of the second roller 10 and the lift motor 9 is provided on the backboard 1, and both are installed in the groove such that the first roller 11 and the second roller 10 are in the same plane.
Both are provided with grooves for cooperating with the electric wire 13 so that the first roller 11 and the second roller 10 can be caught on the electric wire 13. The telescopic shaft of the lifting motor 9 is connected with the bottom of the second roller 10, so that the second roller 10 can move in the vertical direction and is matched with the first roller 11 to clamp the electric wire 13.
When the backboard support is used, the lifting motor 9 drives the second roller 10 to move downwards, then the backboard 1 is hung on the electric wire 13 through the first roller 11, so that the lifting motor 9 drives the second roller 10 to move upwards, and the electric wire 13 is clamped.
The rod body of the first connecting rod 2 is rotatably connected with the back plate 1, and a rotating shaft can be arranged between the rod body and the back plate, so that the first connecting rod 2 can rotate. The second connecting rod 3 is vertically arranged, the top end of the second connecting rod is provided with a hammer body 5, the bottom end of the second connecting rod is rotatably connected with one end of the first connecting rod 2, the second connecting rod 3 can be driven to do linear motion through the rotation of the first connecting rod 2, and the hammer body 5 is used for knocking ice on the electric wire 13.
In order to keep the second connecting rod 5 to move in the vertical direction all the time under the motion of the first connecting rod 2, a third connecting rod 4 is arranged between the rod body of the second connecting rod 5 and the back plate 1, two ends of the third connecting rod 4 are respectively connected with the second connecting rod 3 and the back plate 1 in a rotating mode, when the first connecting rod 2 rotates downwards or upwards, the second connecting rod 3 drives the third connecting rod 4 to rotate, the third connecting rod 4 plays a limiting role in the second connecting rod 3, the second connecting rod 3 cannot generate left and right deviation, the second connecting rod 3 is kept to move in the vertical direction all the time, and therefore the fact that the knocking force of ice applied to the electric wire 13 by the hammer body 5 is maximum is guaranteed.
The top end of the back plate 1 is provided with a fixed shaft 12, a first elastic element 6 is arranged between the extending part of the fixed shaft 12 relative to the back plate 1 and the rod body of the second connecting rod 3, and the first elastic element 6 can provide the hammer body 5 with knocking force acting on ice when the first elastic element 6 is changed from a stretching state to a normal state.
The back of backplate 1 is equipped with linear electric motor 14, and linear electric motor 14 bottom is equipped with shifting block 20, and shifting block 20 is arranged for linear electric motor 14 slope, and has certain length.
One end of the first connecting rod 2 far away from the second connecting rod 3 is provided with a pin 8, and the axial direction of the pin 8 is perpendicular to the axial direction of the first connecting rod 2 and extends towards the other surface of the back plate 1.
Be equipped with the arc and lead to groove 7 near first connecting rod 2 on backplate 1, the track point from the bottom up that the arc leads to groove 7 keeps away from shifting block 20 gradually, round pin 8 passes arc and leads to groove 7, can realize the overlap joint with shifting block 20, shifting block 20 can be along with linear electric motor 14's drive up-and-down motion, and then drive round pin 8 and lead to the groove 7 motion along the arc, because round pin 8 keeps away from the shifting block gradually, therefore, but when the position that reaches arc and lead to groove 7, shifting block 20 and round pin 8 break away from the connection. However, the pole position changes as the initial overlapping position of the pin 8 with the dial 20 changes, the closer the original overlapping position is to the position of the linear motor 14, indicating that the longer the pin 8 can move on the dial 20, the higher the pole position, and vice versa.
When the linear motor 14 drives the shifting block 20 to move upwards, the shifting block 20 drives the first connecting rod 2 to rotate upwards through the pin 8, and further the second connecting rod 3 is pulled to move downwards in the vertical direction, at the moment, the first elastic element 6 stretches, when the pin 8 reaches the extreme position of the arc-shaped through groove 7, the shifting block 20 is disconnected from the pin 8, the hammer body 5 is driven by the first elastic element 6 to rapidly knock the ice on the electric wire 13, at the moment, the first connecting rod 2 drives the pin 8 to rapidly rotate downwards along the arc-shaped through groove 7, at the moment, the linear motor 14 drives the shifting block 20 to move downwards, and the shifting block 20 and the pin 8 are restored to be connected in an overlapping manner. The simple harmonic impact force can be brought to the hammer body 5 in a cycle.
In order to adjust the impact force of the hammer 5, the linear motor 14 is made of elastic material, a cam 15 is arranged on one side of the linear motor, a rotating motor 16 capable of driving the cam 15 to rotate is arranged, namely when the cam 15 rotates, a part of the linear motor 14 can be driven to move left and right, so that the pin 8 is far away from or close to the linear motor 14, a second elastic element 17 is arranged on the other side of the linear motor 14 corresponding to the cam 15, one end of the second elastic element 17 is abutted against the linear motor 14, the other end is a fixed end, and the elastic force of the second elastic element 17 is opposite to the direction of the extrusion force of the cam 15. In this embodiment, the cam 15 is disposed on a side close to the arc-shaped through groove 7.
On the opposite sides of the linear motor 14, a first contact sensor 19 and a second contact sensor 18 are provided, both of which are spaced from the linear motor 14 in a non-offset state, and the size of the spacing may be changed according to the actual situation. According to the first contact sensor 19 and the second contact sensor 18, the level of the impact force of the hammer 5 on the ice can be set as follows:
bottom grade impact force: the cam 15 rotates to enable the linear motor 14 to be in contact with the second contact sensor 18, and at this time, a prompt is generated, namely the maximum distance of leftward deviation of the linear motor 14, at this time, the distance from the pin 8 to the linear motor 14 is the farthest, the pole of upward movement of the pin 8 along the arc-shaped through groove 7 is the lowest, the stretching length of the first elastic element 6 is the smallest, and the generated impact force is the smallest;
middle-grade impact force: that is, the linear motor 14 is located between the first contact sensor 19 and the second contact sensor 18, the first elastic member 6 has a medium stretched length;
high-grade impact force: the cam 15 rotates to make the second elastic element 17 stretch and push the linear motor 14 to move towards the right until the second elastic element contacts with the first contact sensor 19, and then the indication is generated, the maximum distance of the rightward deviation of the linear motor 14 is generated, the distance between the pin 8 and the linear motor 14 is the shortest, the pole of the upward movement of the pin 8 along the arc-shaped through groove 7 is the highest, the stretching length of the first elastic element 6 is the largest, and the generated impact force is the largest.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a high tension transmission line defroster which characterized in that: including backplate and first connecting rod, both are the rotation connection, still include:
one end of the second connecting rod is rotatably connected with one end of the first connecting rod, and the other end of the second connecting rod is provided with a hammer body;
the arc-shaped through groove is formed in the back plate, and track points of the arc-shaped through groove are gradually close to the second connecting rod from bottom to top;
the lifting component is arranged on the back plate and drives the end part of the first connecting rod to move along the arc-shaped through groove from bottom to top, and when the lifting component moves to the extreme, the first connecting rod is disconnected with the component.
2. The deicing apparatus for high-voltage transmission lines according to claim 1, wherein: the rod body of the second connecting rod is connected with one end of the first elastic element, and the other end of the first elastic element is a fixed end.
3. Device according to claim 2, characterized in that: the lifting component comprises a linear motor and a shifting block which are vertically arranged, the shifting block is arranged at the bottom of a telescopic shaft of the linear motor, one end of the first connecting rod, which is far away from the second connecting rod, is provided with a pin which penetrates through the arc-shaped through groove, and the shifting block and the pin can be in lap joint.
4. A deicing apparatus for high voltage transmission lines as claimed in claim 3, characterized in that: the backboard is provided with a rotatable cam, the cam is positioned on one side of the linear motor, and the offset degree of the linear motor towards the direction far away from the cam can be adjusted through the rotation of the cam.
5. Device according to claim 4, characterized in that: the linear electric motor with the opposite side that the cam is relative is equipped with second elastic element, second elastic element's one end with linear electric motor butt, the other end is the stiff end.
6. Device according to claim 5, characterized in that: the linear motor is provided with a first contact sensor at one side close to the cam, and a second contact sensor at the other side.
7. The deicing apparatus for high-voltage transmission lines according to claim 1, wherein: the rod body of the second connecting rod is rotatably connected with the end part of a third connecting rod, and the other end of the third connecting rod is rotatably connected with the back plate.
8. The deicing apparatus for high-voltage transmission lines according to claim 1, wherein: the back plate is further provided with a first roller and a second roller, the first roller and the second roller are arranged up and down, and the bottom of the second roller is connected with an expansion shaft of the lifting motor.
9. Device according to claim 2, characterized in that: the back plate is provided with a fixed shaft, and the fixed shaft partially extends out of the back plate and is connected with one end, far away from the second connecting rod, of the first elastic element.
10. The deicing apparatus for high-voltage transmission lines according to claim 8, wherein: the moving surfaces of the first roller and the second roller are provided with grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317486.3A CN112271683B (en) | 2020-11-23 | 2020-11-23 | High tension transmission line defroster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317486.3A CN112271683B (en) | 2020-11-23 | 2020-11-23 | High tension transmission line defroster |
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| CN112271683A true CN112271683A (en) | 2021-01-26 |
| CN112271683B CN112271683B (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011317486.3A Active CN112271683B (en) | 2020-11-23 | 2020-11-23 | High tension transmission line defroster |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054607A (en) * | 2021-04-25 | 2021-06-29 | 中国电建集团江西省电力设计院有限公司 | Spanning type split conductor ice coating removing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054607A (en) * | 2021-04-25 | 2021-06-29 | 中国电建集团江西省电力设计院有限公司 | Spanning type split conductor ice coating removing device |
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| Publication number | Publication date |
|---|---|
| CN112271683B (en) | 2022-01-18 |
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