阅读说明：本技术 一种轮式固相气流驱动换轨灭弧装置 (Wheel type solid-phase air flow driving rail-changing arc-extinguishing device ) 是由 杨倩颖 孙鑫 王嬿蕾 王巨丰 李籽剑 王锟 张清河 徐宇恒 彭斐 唐佳雄 金鑫 于 2019-10-16 设计创作，主要内容包括：本发明公开了一种轮式固相气流驱动换轨灭弧装置,所述灭弧防雷装置包括灭弧防雷壳体、灭弧筒、A转盘和B转盘和驱动切换装置,在灭弧防雷壳体内水平设置有可转动的中心轴,A转盘和B转盘可滑动设置在中心轴上,在A转盘和B转盘的圆周侧壁上均匀设置有放置槽,该灭弧筒从气丸触发位穿入且与A转盘或B转盘上的放置槽接触,在灭弧防雷壳体的内部顶端上设置有支撑点,在A转盘和B转盘的内部中心位置分别设置有涡卷弹簧,A转盘和B转盘分别通过涡卷弹簧套设在中心轴上,使驱动切换装置驱动A转盘和B转盘沿中心轴转动过程中,且A转盘和B转盘沿中心轴上同步滑动。本发明的灭弧装置避免了转盘切换过程中发生错位移动,提高了双盘切换的可靠性。(The invention discloses a wheel type solid phase airflow driving rail-changing arc-extinguishing device, which comprises an arc-extinguishing lightning-protection shell, an arc-extinguishing cylinder, a turntable A, a turntable B and a driving switching device, a rotatable central shaft is horizontally arranged in the arc extinguishing lightning protection shell, the turntable A and the turntable B are slidably arranged on the central shaft, the circumferential side walls of the turntable A and the turntable B are uniformly provided with placing grooves, the arc extinguishing cylinder penetrates from the gas pill triggering position and is contacted with the placing groove on the turntable A or the turntable B, a supporting point is arranged on the top end inside the arc extinguishing lightning protection shell, the central positions of the inner parts of the turntable A and the turntable B are respectively provided with a volute spiral spring, the turntable A and the turntable B are respectively sleeved on the central shaft through the volute spiral spring, so that the turntable A and the turntable B are driven by the driving switching device to synchronously slide along the central shaft in the rotating process of the turntable A and the turntable B. The arc extinguishing device avoids dislocation movement in the switching process of the rotating disc, and improves the reliability of double-disc switching.)

1. The utility model provides a wheeled solid phase air current drive arc control device that trades rail which characterized in that: the arc extinguishing lightning protection device comprises an arc extinguishing lightning protection shell (1), an arc extinguishing cylinder (2), an A rotary table (3), a B rotary table (4) and a driving switching device (5), wherein a rotatable central shaft (10) is horizontally arranged in the arc extinguishing lightning protection shell (1), the A rotary table (3) and the B rotary table (4) are slidably arranged on the central shaft (10), a plurality of placing grooves (30) used for placing gas pills along the radial direction are uniformly arranged on the circumferential side walls of the A rotary table (3) and the B rotary table (4), a lightning protection gas pill triggering position is arranged on the side wall below the arc extinguishing lightning protection shell (1), the arc extinguishing cylinder (2) is arranged on the gas pill triggering position below the arc extinguishing lightning protection shell (1), the arc extinguishing cylinder (2) penetrates through the gas pill triggering position and is in contact with the placing grooves (30) on the A rotary table (3) or the B rotary table (4), a supporting point (11) is arranged at the top end inside the arc extinguishing lightning protection shell (1), be provided with volute spiral spring (12) respectively in the inside central point of A carousel (3) and B carousel (4) puts, A carousel (3) and B carousel (4) overlap respectively through volute spiral spring (12) and establish on center pin (10), drive auto-change over device (5) through the intermediate position of strong point (11) with the inside top of arc extinguishing casing (1) is connected, the one end of drive auto-change over device (5) with A carousel (3) transmission is connected, the other end of drive auto-change over device (5) with B carousel (4) transmission is connected, makes drive auto-change over device (5) drive A carousel (3) and B carousel (4) rotate the in-process along center pin (10), and A carousel (3) and B carousel (4) are followed center pin (10) and are gone up synchronous slip.

2. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 1, characterized in that: the driving switching device (5) comprises an L-shaped rotating rod (50), a clamping sheath (51) and a clamping point (52) which are arranged on the L-shaped rotating rod (50), the L-shaped rotating rod (50) is horizontally arranged below the inner wall of the top end of the arc extinguishing lightning protection shell (1), and the middle part of the L-shaped rotating rod (50) is rotationally connected with the top end inner wall or the top end side wall of the arc extinguishing lightning protection shell (1) through a supporting point (11), the clamping sheath (51) is arranged at the bent part of the short side of the L-shaped rotating rod (50), the bent part of the short side of the L-shaped rotating rod (50) extends downwards and is in transmission connection with the circumferential side wall of the B turntable (4) below through the clamping sheath (51), the clamping point (52) is arranged at the end part of the long side of the L-shaped rotating rod (50), the clamping points (52) extend downwards from the end parts of the long sides of the L-shaped rotating rods (50) and are in transmission connection with the circumferential side walls on the A rotating disc (3).

3. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 2, characterized in that: a groove (40) is formed in the circumferential side wall of the rotary disc B (4), the groove (40) is arranged close to a placing groove (30) which is triggered on the rotary disc B (4) firstly and used for placing the air pills, and the clamping sheath (51) extends downwards from the bent part of the short side of the L-shaped rotating rod (50) and is in transmission connection with the groove (40) in the rotary disc B (4).

4. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 3, characterized in that: the circular side wall of the A rotary table (3) is provided with an annular convex rail (31) or an annular convex ring (302) which protrudes outwards, and the clamping point (52) extends downwards from the end part of the long edge of the L-shaped rotating rod (50) and is in transmission connection with the annular convex rail (31) or the annular convex ring (302) on the circular side wall of the A rotary table (3).

5. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 4, wherein: the clamping points (52) extend downwards from the end parts of the long sides of the L-shaped rotating rods (50) and are in close sliding contact with the annular convex tracks (31) on the circumferential side walls of the A rotary table (3), the annular convex tracks (31) are provided with protruding points (33) lower than the surfaces of the annular convex tracks (31), the protruding points (33) are arranged near the placement grooves (30) which are triggered last and used for placing air pills on the A rotary table (3), and after the last air pills in the placement grooves (30) of the A rotary table (3) are triggered, the protruding points (33) are in contact with the clamping points (52) and enable the clamping points (52) to be separated from the protruding points (33) on the annular convex tracks (31).

6. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 5, characterized in that: the circular convex rail (31) is provided with a triangular inclined plane (32), the triangular inclined plane (32) inclines along one side of the circular convex rail (31) and the side of the B turntable (4), the triangular inclined plane (32) is provided with the salient point (33), and the circle centers of the triangular inclined plane (32), the salient point (33) and the A turntable (3) are on the same straight line.

7. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 4, wherein: the clamping points (52) extend downwards from the end parts of the long sides of the L-shaped rotating rods (50) and are in close sliding contact with the annular convex rings (302) on the circumferential side walls of the A rotary disc (3), concave points (303) are arranged on the annular convex rings (302), the concave points (303) are arranged near the placement groove (30) which is used for placing the air shots and is triggered at the last on the A rotary disc (3), and after the last air shot in the placement groove (30) of the A rotary disc (3) is triggered, the concave points (303) are in close contact with the clamping points (52).

8. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 1, characterized in that: a sleeve (300) and a B sleeve (400) are fixedly sleeved on a central shaft (10) respectively, an A rotary table (3) is arranged on the A sleeve (300) in a sliding mode, a B rotary table (4) is arranged on the B sleeve (400) in a sliding mode, the A rotary table (3) is sleeved on the central shaft (10) through the A sleeve (300), the B rotary table (4) is sleeved on the central shaft (10) through the B sleeve (400), identical spiral slide rails (301, 401) are arranged on the outer wall of the A sleeve (300) and the outer wall of the B sleeve (400), the A rotary table (3) and the B rotary table (4) are identical in size, the A rotary table (3) and the B rotary table (4) are rotatably installed in an arc extinguishing lightning protection shell (1) through the horizontally arranged central shaft (10), and when a driving switching device (5) drives the A rotary table (3), the B rotary table (4), the A sleeve (300) and the B sleeve (400) to rotate along the central shaft (10), and the A rotary table (3) slides synchronously along the A sleeve (300) and the B rotary table (4) slides synchronously along the B sleeve (400).

9. The wheel type solid-phase airflow driving rail-changing and arc-extinguishing device according to claim 1, characterized in that: fix the cover and be equipped with B sleeve pipe (400) on center pin (10), A carousel (3) slide to set up on center pin (10), and B carousel (4) slide to set up on B sleeve pipe (400), B carousel (4) are provided with heliciform slide rail (401) on the outer wall of B sleeve pipe (400) on center pin (10) is established through B sleeve pipe (400) cover, the peripheral circumference of A carousel (3) and B carousel (4) is on same water flat line, and center pin (10) that A carousel (3) and B carousel (4) set up through the level rotationally install in arc extinguishing lightning protection casing (1).

10. The wheeled solid-phase airflow-driven rail-changing and arc-extinguishing device according to claim 8 or 9, wherein: one or two fixed rods (13) are further arranged on the inner wall of the arc extinguishing and lightning protection shell (1), the fixed rods (13) are respectively located above the spiral slide rails, and the end portions of the fixed rods (13) are inserted into the spiral slide rails.

Technical Field

The invention belongs to the technical field of lightning protection and arc extinction, and particularly relates to a wheel type solid-phase airflow-driven rail-changing arc-extinguishing device.

Background

Lightning strikes can cause damage and destruction of electric power facilities in different forms, and thundercloud discharge can cause lightning overvoltage in an electric power system. The overvoltage commonly seen in overhead lines is the overvoltage produced by lightning striking the transmission line by electromagnetic induction near the overhead line and the overvoltage produced by lightning striking the conductor directly. Lightning stroke causes overvoltage, possibly damages insulators and power transmission lines, lightning stroke causes insulator flashover discharge, burning and shedding can be caused on the surface of porcelain, or reticular cracks can be caused on glass insulators, so that the insulating strength is greatly reduced, and strand breakage and even breakage can be caused by lightning striking on the power transmission lines or the lightning conductor, so that power transmission work cannot be carried out. Overhead transmission line solid phase air current arc extinguishing lightning protection gap device, parallelly connected installation is in circuit insulator chain both ends, and the flashover voltage between the protection gap is less than by protection insulator chain to when transmission line suffered the thunderbolt puncture earlier than by protection insulator chain breakdown, when the breakdown discharges, trigger signal and starting drive arrangement are inducted automatically to the inside signal inductor of solid phase arc extinguishing device, and the air shot produces high-speed air current in the twinkling of an eye and causes along vertically strikeing, cooling to extinguishing to electric arc. The wheel type solid phase airflow arc extinguishing lightning protection device is internally provided with a plurality of gas pill turntables, each gas pill turntable can rotate under the action of a central shaft, after gas pills on a triggering position in each gas pill turntable are triggered, strong airflow is sprayed out from an arc extinguishing cylinder below and acts on electric arcs, and the purpose of extinguishing the electric arcs is achieved. When all the air pills in the first air pill rotating disc in the device are triggered, the next air pill rotating disc needs to be pushed to the triggering position through the switching device, and the triggering continuity of the air pills is guaranteed. For example, a chinese patent, the patent names: the utility model provides a reserve side of double plate spouts arc extinguishing lightning protection device, application number is: 201821264908.3, discloses a spherical magazine and a cylindrical arc extinguishing cylinder; the spherical bullet storage bin is hollow inside, the bottom of the spherical bullet storage bin is provided with an air pill triggering position, and a cylindrical arc extinguishing barrel is arranged below the air pill triggering position; spherical storage magazine inside be equipped with left arc-extinguishing dish, right arc-extinguishing dish, the striking rod, induction coil, center pin and technical characteristic such as spill screens stick, the arc extinguishing gas ball is more, left arc-extinguishing dish, the arc extinguishing gas ball of right arc-extinguishing dish gets into the gas ball in proper order in turn and triggers the position, and the speed of its switching is faster, though there is not other contacts between gas ball dish and the device shell, frictionless, however, the arc extinguishing section of thick bamboo removes and the carousel cooperation between switching also has the certain problem, there is great frictional force arc extinguishing section of thick bamboo and gas ball dish in switching displacement in-process, thereby the effect of arc extinguishing has been influenced. In order to improve the switching reliability of the gas pill rotating disc in the device, a wheel type solid-phase air flow driving rail-changing arc-extinguishing device is provided.

Disclosure of Invention

The invention aims to provide a wheel type solid-phase airflow-driven rail-changing arc-extinguishing device, which can effectively avoid dislocation movement in the switching process of a turntable, can ensure that double disks rotate in effective driving on a central shaft, and improves the reliability of double-disk switching. In order to achieve the purpose, the invention adopts the following technical scheme:

according to one aspect of the invention, a wheel type solid phase air flow driving rail-changing arc-extinguishing device is provided, the arc-extinguishing lightning-protection device comprises an arc-extinguishing lightning-protection shell, an arc-extinguishing cylinder, an A rotary disc, a B rotary disc and a driving switching device, a rotatable central shaft is horizontally arranged in the arc-extinguishing lightning-protection shell, the A rotary disc and the B rotary disc are slidably arranged on the central shaft, a plurality of placing grooves for placing gas pills along the radial direction are uniformly arranged on the circumferential side walls of the A rotary disc and the B rotary disc, a gas pill triggering position is arranged on the lower side wall of the arc-extinguishing lightning-protection shell, the arc-extinguishing cylinder is arranged on the gas pill triggering position below the arc-extinguishing lightning-protection shell, the arc-extinguishing cylinder penetrates from the gas pill triggering position and is contacted with the placing grooves on the A rotary disc or the B rotary disc, a supporting point is arranged on the inner top end of the arc-extinguishing, a carousel and B carousel are established on the center pin through the spiral spring cover respectively, drive auto-change over device pass through the intermediate position of strong point with the inside top of arc extinguishing lightning protection casing is connected, drive auto-change over device's one end with A carousel transmission is connected, drive auto-change over device's the other end with B carousel transmission is connected, makes drive auto-change over device drive A carousel and B carousel rotate the in-process along the center pin, and A carousel and B carousel follow the center pin and go up synchronous slip.

Preferably, the driving switching device comprises an L-shaped rotating rod, a clamping sheath and a clamping point, the clamping sheath is arranged on the L-shaped rotating rod, the L-shaped rotating rod is horizontally arranged below the inner wall of the top end of the arc extinguishing lightning protection shell, the middle part of the L-shaped rotating rod is rotatably connected with the inner wall of the top end or the side wall of the top end of the arc extinguishing lightning protection shell through a supporting point, the clamping sheath is arranged at a short edge bending part of the L-shaped rotating rod, the short edge bending part of the L-shaped rotating rod extends downwards and is in transmission connection with the circumferential side wall of the B turntable below through the clamping sheath, the clamping point is arranged at the long edge end part of the L-shaped rotating rod, and the clamping point extends downwards from the long edge end part of the L-shaped rotating rod and is in transmission connection.

In a further preferred embodiment of the above-mentioned solution, a groove is provided on the circumferential side wall of the B turntable, the groove is provided near a placement groove for placing an air pill, which is triggered first, on the B turntable, and the clamping sheath extends downward from the bent portion of the short side of the L-shaped rotating rod and is in transmission connection with the groove on the B turntable.

The scheme is further preferable, the circumferential side wall of the A rotary table is provided with an annular convex rail or an annular convex ring which protrudes outwards, and the clamping point extends downwards from the end part of the long edge of the L-shaped rotating rod and is in transmission connection with the annular convex rail or the annular convex ring on the circumferential side wall of the A rotary table.

Preferably, the clamping points extend downwards from the end parts of the long sides of the L-shaped rotating rods and are in close sliding contact with the annular convex rails on the circumferential side walls of the A turntable, the annular convex rails are provided with protruding points lower than the surfaces of the annular convex rails, the protruding points are arranged near the placement grooves, which are triggered last, on the A turntable and used for placing the air shots, and after the last air shots in the placement grooves of the A turntable are triggered, the protruding points are in mutual contact with the clamping points and enable the clamping points to be separated from the protruding points on the annular convex rails.

In a further preferred embodiment of the above scheme, the annular convex rail is provided with a triangular inclined surface, the triangular inclined surface inclines along one side of the annular convex rail to one side of the B turntable, the triangular inclined surface is provided with the salient point, and the triangular inclined surface, the salient point and the circle center of the a turntable are on the same straight line.

Preferably, the clamping point extends downwards from the end part of the long side of the L-shaped rotating rod and is in close sliding contact with the annular convex ring on the circumferential side wall of the A turntable, a concave point is arranged on the annular convex ring and is arranged near a placement groove which is used for placing the air pills and is triggered last on the A turntable, and after the last air pills in the placement groove of the A turntable are triggered, the concave point is in close contact with the clamping point.

Above-mentioned scheme is further preferred, fixes respectively fixed cover on the center pin and is equipped with A sleeve pipe and B sleeve pipe, and the A carousel slides and sets up on the A sleeve pipe, and the B carousel slides and sets up on the B sleeve pipe, the A carousel passes through on the center pin is established to A sleeve pipe cover, the B carousel passes through on the center pin is established to the B sleeve pipe cover, be provided with the same heliciform slide rail on the outer wall of A sleeve pipe and on the outer wall of B sleeve pipe, the size of A carousel and B carousel is the same, and the center pin that A carousel and B carousel set up through the level rotationally installs in the arc extinguishing lightning protection casing, works as the drive auto-change over device drive A carousel, B carousel, A sleeve pipe and B sleeve pipe rotate the in-process along the center pin, and the A carousel is along on the A.

Above-mentioned scheme is further preferred, fixed cover is equipped with the B sleeve pipe on the center pin, the A carousel slides and sets up on the center pin, and the B carousel slides and sets up on the B sleeve pipe, on the B carousel passes through the B sleeve pipe cover and establishes the center pin, be provided with the heliciform slide rail on the sheathed tube outer wall of B, the peripheral circumference of A carousel and B carousel is on same water flat line, and the center pin that A carousel and B carousel set up through the level rotationally installs in lightning protection arc extinguishing shell.

In a further preferred embodiment of the above scheme, one or two fixed rods are further disposed on the inner wall of the arc extinguishing lightning protection housing, the fixed rods are respectively located above the spiral slide rails, and the end portions of the fixed rods are inserted into the spiral slide rails.

In summary, due to the adoption of the technical scheme, the invention has the following technical effects: the arc extinguishing device has the advantages of simple structure, reasonable design, compact internal structure, small occupied space, small volume, strong arc extinguishing capability and more stable and reliable work. The reliability of switching between the last gas-emitting pill in the upper disc and the first gas-emitting pill in the lower disc can be well ensured by the adjacent gas-emitting pill rotating discs; the driven validity of carousel on the center pin can be guaranteed to the spiral heliciform slide rail on the sleeve pipe on every carousel and the sleeve pipe, can produce strong air current when the air shot in the device moves, and strong air current has to cut, extinguishes the effect to the thunder and lightning arc, can reduce transmission line lightning protection cost.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a wheel type solid-phase airflow-driven rail-changing arc-extinguishing device according to the invention;

FIG. 2 is a schematic view of the internal structure of the air pill rotating disk body of the present invention;

FIG. 3 is a schematic structural diagram of a first embodiment of the turntable A of the present invention;

FIG. 4 is a schematic view of the expanded configuration of the annular raised rail of the present invention;

FIG. 5 is a schematic view of the connection structure of the fixed bar of the present invention;

FIG. 6 is a schematic structural diagram of a second embodiment of the turntable A of the present invention;

FIG. 7 is a schematic view of the expanded configuration of the annular bead of the present invention;

FIG. 8 is a schematic structural diagram of a second embodiment of a wheel-type solid-phase airflow-driven rail-changing arc-extinguishing device according to the present invention;

in the drawing, an arc lightning protection housing 1, an arc extinguishing barrel 2, an a turntable 3, a B turntable 4, a driving switching device 5, a central shaft 10, a supporting point 11, a volute spring 12, a fixed rod 13, a placing groove 30, an annular convex rail 31, a triangular inclined plane 32, a convex point 33, a groove 40, an L-shaped rotating rod 50, a clamping sheath 51, a clamping point 52, an a sleeve 300, an annular convex ring 302, a concave point 303, a spiral slide rail 301, a B sleeve 400 and a spiral slide rail 401.

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 below with reference to the accompanying drawings by way of examples of preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.