阅读说明：本技术 一种5400kV高精度纯电阻雷电脉冲冲击电阻分压器 (5400kV high-precision pure-resistance lightning impulse resistance voltage divider ) 是由 余世家 于 2019-10-14 设计创作，主要内容包括：本发明提供一种5400kV高精度纯电阻雷电脉冲冲击电阻分压器,包括绝缘环、底座和均压环,所述绝缘环通过螺栓安装在底座的顶部,所述均压环通过支杆安装在绝缘环的顶部,所述底座的外侧焊接有支架,所述支架的底部安装有滚轮,所述绝缘环的外边侧焊接有固定环,所述固定环上连接有环氧棒斜拉杆,所述支架的顶部安装有滑轮,所述支架的内侧开设有卡槽和内槽,所述卡槽设置在内槽的顶部,所述内槽的内侧卡有轴承一,所述轴承一的一侧设置有螺杆,该5400kV高精度纯电阻雷电脉冲冲击电阻分压器设计精良,使用方便,适用于高精度纯电阻雷电脉冲电压测量使用。(The invention provides a 5400kV high-precision pure-resistance lightning impulse resistor voltage divider which comprises an insulating ring, a base and a grading ring, wherein the insulating ring is installed at the top of the base through bolts, the grading ring is installed at the top of the insulating ring through a support rod, a support is welded on the outer side of the base, a roller is installed at the bottom of the support, a fixing ring is welded on the outer side of the insulating ring, an epoxy rod diagonal draw bar is connected onto the fixing ring, a pulley is installed at the top of the support, a clamping groove and an inner groove are formed in the inner side of the support, a first bearing is clamped on the inner side of the inner groove, a screw is arranged on one side of the first bearing, and the 5400kV high-precision pure-resistance lightning impulse resistor voltage divider is fine in design, convenient to use and suitable for measuring high-precision pure-.)

1. The utility model provides a 5400kV high accuracy pure resistance lightning impulse resistance voltage divider which characterized in that: the device comprises an insulating ring (1), a base (2) and a grading ring (3), wherein the insulating ring (1) is installed at the top of the base (2) through bolts, the grading ring (3) is installed at the top of the insulating ring (1) through a support rod (4), a support (5) is welded at the outer side of the base (2), rollers (6) are installed at the bottom of the support (5), a fixing ring (7) is welded at the outer side of the insulating ring (1), an epoxy rod diagonal draw bar (8) is connected onto the fixing ring (7), a pulley (9) is installed at the top of the support (5), a clamping groove (10) and an inner groove (11) are formed in the inner side of the support (5), the clamping groove (10) is formed in the top of the inner groove (11), a first bearing (12) is clamped on the inner side of the inner groove (11), a screw rod (13) is arranged on one side of the, the screw rod (13) is connected with the first bearing (12) through a spring (14), a high-voltage resistor (15) and a low-voltage resistor (16) are arranged on the inner side of the insulating ring (1), the low-voltage resistor (16) is arranged at the bottom of the high-voltage resistor (15), the high-voltage resistor (15) and the low-voltage resistor (16) are fixed on the inner wall of the insulating ring (1) through insulating rods (17), guide rods (21) are welded to the top of the high-voltage resistor (15) and the bottom of the low-voltage resistor (16), limiting plates (18) are welded on the guide rods (21), a voltage sensor (20) is arranged on one side of the low-voltage resistor (16), each guide rod (21) comprises a first guide rod and a second guide rod, a first clamping plate (19) is sleeved on the outer side of the first guide rod, a second clamping plate (22) is sleeved on the outer side of the second guide rod, and a spiral plate (, and a connecting rod (23) is welded on the spiral plate (24), and a second bearing (25) is installed at the top of the second guide rod.

2. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: the grading ring (3) is connected with the high-voltage resistor (15) through an electric wire, the high-voltage resistor (15) is connected with the low-voltage resistor (16) through an electric wire, and the low-voltage resistor (16) is connected with the voltage sensor (20) through an electric wire.

3. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: an external thread I is arranged on the outer side of the guide rod I, an internal thread I is arranged on the inner side of the clamping plate I (19), and the external thread I is matched with the internal thread I.

4. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: an external thread II is arranged on the outer side of the guide rod II, an internal thread II is arranged on the inner side of the clamping plate II (22), and the external thread II is matched with the internal thread II.

5. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: the inner diameter of the spiral plate (24) is larger than the outer diameter of the high-voltage resistor (15), the outer diameter of the spiral plate (24) is smaller than the inner diameter of the insulating ring (1), and the spiral plate (24) is welded on the clamping plate II (22) through a connecting rod (23).

6. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: the outer diameters of the first clamping plate (19) and the second clamping plate (22) are equal to the inner diameter of the insulating ring (1), the inner diameter of the first clamping plate (19) is equal to the outer diameter of the first guide rod, and the inner diameter of the second clamping plate (22) is equal to the outer diameter of the second guide rod.

7. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: the inner side of the inner groove (11) is provided with a third internal thread, the outer side of the screw (13) is provided with a third external thread, and the third internal thread is matched with the third external thread.

8. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: one end of the epoxy rod diagonal draw bar (8) is connected to the fixing ring (7), and the other end of the epoxy rod diagonal draw bar (8) bypasses the pulley (9) to penetrate the clamping groove (10) and is connected to the first bearing (12).

9. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: the bearing I (12) is connected with the screw rod (13) through a spring (14), the roller (6) is a polyurethane roller, and the grading ring (3) is a thin-wall aluminum grading ring.

10. A 5400kV high accuracy pure resistance lightning impulse resistor divider as claimed in claim 1, characterized in that: the number of the high-voltage resistors (15) is 3, and the number of the supports (5) is 3.

Technical Field

The invention relates to the field of lightning impulse resistor voltage divider equipment, in particular to a 5400kV high-precision pure-resistance lightning impulse resistor voltage divider.

Background

The high-precision pure-resistance lightning impulse surge resistor voltage divider has very high measurement precision (5 per mill grade, the highest precision can reach 1 per mill grade), is the surge resistor voltage divider with the highest precision in China at present, and can be completely used as a measuring standard instrument. The device can be used for measuring the lightning impulse full wave and the wave chopping voltage, operating the impulse voltage and the alternating voltage, and can also be used as the basic load of an impulse voltage generator, the patent number is CN201721428035.0 high-voltage non-inductive impulse resistance voltage divider, can realize the functions of measuring the lightning impulse full wave and the wave chopping voltage, operating the impulse voltage and the alternating voltage, the existing lightning impulse resistance voltage divider in the market has the advantages of convenient use, firm structure, easy operation, simple maintenance and the like, can meet the use requirements of measuring the lightning impulse full wave and the wave chopping voltage, however, for the existing lightning impulse resistance voltage divider, on one hand, in the aspect of transportation, an integral structure is adopted, the transportation is not facilitated, in consideration of stability, the voltage-sharing ring structure is heavy, the top of the device is heavier, and is easy to be corroded by rainwater, oxidized, rusted and has larger wind resistance, be unfavorable for the stability of equipment, on the other hand, can not effectively fix the insulating ring, when using the rope to consolidate the support component, it is not hard up or the dynamics is too big to appear the rope easily, and then can not effectual the holding fixed to the support component, on the one hand again, when measuring thunder and lightning impulse full wave and cut wave voltage, because voltage is too big, produce higher heat easily, if can not fast effluvium, influence the life of equipment easily, and be unfavorable for the measurement use once more.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a 5400kV high-precision pure-resistance lightning impulse resistor voltage divider to solve the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a5400 kV high-precision pure resistance lightning impulse resistor divider comprises an insulating ring, a base and a grading ring, wherein the insulating ring is installed at the top of the base through bolts, the grading ring is installed at the top of the insulating ring through supporting rods, a support is welded on the outer side of the base, rollers are installed at the bottom of the support, a fixing ring is welded on the outer side of the insulating ring, an epoxy rod diagonal draw bar is connected onto the fixing ring, a pulley is installed at the top of the support, a clamping groove and an inner groove are formed in the inner side of the support, the clamping groove is formed in the top of the inner groove, a first bearing is clamped on the inner side of the inner groove, a screw is arranged on one side of the first bearing and is connected with the first bearing through a spring, a high-voltage resistor and a low-voltage resistor are arranged on the inner side of the insulating ring, the low-voltage resistor is arranged at the bottom of the, the high-voltage resistor's top and low-voltage resistor's bottom all weld the guide arm, the welding has the limiting plate on the guide arm, one side of low-voltage resistor is provided with voltage sensor, the guide arm includes guide arm one and guide arm two, the outside side cover of guide arm one is equipped with cardboard one, the outside side cover of guide arm two is equipped with cardboard two, the bottom of cardboard two is provided with the spiral plate, the welding has the connecting rod on the spiral plate, bearing two is installed at the top of guide arm two.

In a preferred embodiment of the present invention, the grading ring is connected to a high-voltage resistor through a wire, the high-voltage resistor is connected to a low-voltage resistor through a wire, and the low-voltage resistor is connected to the voltage sensor through a wire.

As a preferred embodiment of the invention, an external thread I is arranged on the outer side of the guide rod I, an internal thread I is arranged on the inner side of the clamping plate I, and the external thread I is matched with the internal thread I.

As a preferred embodiment of the invention, a second external thread is formed on the outer side of the second guide rod, a second internal thread is formed on the inner side of the second clamping plate, and the second external thread is matched with the second internal thread.

In a preferred embodiment of the present invention, the inner diameter of the spiral plate is larger than the outer diameter of the high voltage resistor, the outer diameter of the spiral plate is smaller than the inner diameter of the insulating ring, and the spiral plate is welded to the second clamping plate through a connecting rod.

In a preferred embodiment of the present invention, the outer diameters of the first clamping plate and the second clamping plate are both equal to the inner diameter of the insulating ring, the inner diameter of the first clamping plate is equal to the outer diameter of the first guide rod, and the inner diameter of the second clamping plate is equal to the outer diameter of the second guide rod.

In a preferred embodiment of the present invention, the inner side of the inner tank is provided with a third internal thread, the outer side of the screw is provided with a third external thread, and the third internal thread is engaged with the third external thread.

As a preferred embodiment of the present invention, one end of the diagonal draw bar of the epoxy rod is connected to the fixing ring, and the other end of the diagonal draw bar of the epoxy rod passes through the clamping groove around the pulley and is connected to the first bearing.

In a preferred embodiment of the present invention, the first bearing is connected to the screw through a spring, the roller is a polyurethane roller, and the grading ring is a thin-walled aluminum grading ring.

In a preferred embodiment of the present invention, the number of the high voltage resistors is 3, and the number of the supports is 3.

The invention has the beneficial effects that: the invention discloses a 5400kV high-precision pure-resistance lightning impulse resistor divider which comprises an insulating ring, a base, a grading ring, a support rod, a support, a roller, a fixing ring, an epoxy rod diagonal draw bar, a pulley, a clamping groove, an inner groove, a first bearing, a screw, a spring, a high-voltage resistor, a low-voltage resistor, an insulating rod, a limiting plate, a first clamping plate, a voltage sensor, a guide rod, a second clamping plate, a connecting rod, a spiral plate and a second bearing.

1. When the 5400kV high-precision pure resistance lightning impulse resistor voltage divider is used, a base, a support, an insulating ring and an equalizing ring are transported to the site, the base is installed on the support through bolts, the equalizing ring is installed at the top of the insulating ring through supporting rods and is connected with high-voltage resistors on the inner side of the insulating ring through electric wires, one end of an epoxy rod diagonal draw bar is fixed on a fixing ring, the bottom of the insulating ring is installed on the base through bolts, equipment can be rapidly installed after parts are transported to the site, the voltage divider is convenient to transport by adopting a structural mode of site assembly, and the voltage divider is considered in stability, adopts a thin-wall aluminum structure, achieves the characteristics of light weight, corrosion resistance, non-oxidation, small wind resistance and the like, reduces the pressure of the equalizing ring on the insulating ring, and can effectively guarantee the use safety of the insulating ring.

2. When the 5400kV high-precision pure resistance lightning impulse resistance voltage divider is used, one end of an epoxy rod diagonal draw bar is fixed on a fixing ring, the other end of the epoxy rod diagonal draw bar is fixed on a bearing I, the bearing I is inserted into the inner side of an inner groove, the epoxy rod diagonal draw bar is clamped in a clamping groove, one side of the epoxy rod diagonal draw bar is clamped on a pulley, a screw is screwed into the inner groove in a rotating mode, the top of the epoxy rod diagonal draw bar moves towards the inner side, the epoxy rod diagonal draw bar tensions the fixing ring, the bottom of the epoxy rod diagonal draw bar pulls a spring towards the outer side, the spring is compressed, the epoxy rod diagonal draw bar is fixed by the spring, a certain tension force is ensured between the epoxy rod diagonal draw bar and the fixing ring, the tension force of the epoxy rod diagonal draw bar is prevented from being too loose or too tight, the tension force of the epoxy rod diagonal draw bar is ensured to be stable, the epoxy rod diagonal draw bar can be effectively prevented from being broken by pulling.

3. This 5400kV high accuracy pure resistance lightning impulse resistance voltage divider is when the thunder and lightning passes through high tension resistor and low voltage resistor, can produce a large amount of heats, and then make the inboard gas of insulating collar be heated the inflation fast, upwards respectively or cardboard one downwards, and then make cardboard two and cardboard one upwards or downwards rotate fast through the screw thread spiral respectively, cardboard two drive the spiral plate and rotate, cardboard two removes the outside of bearing two, under inertial effect, the spiral plate is rotatory upwards takes out the inboard high temperature air of insulating collar, cold air flows into in the insulating collar from the bottom of base, and then cool down high tension resistor and low voltage resistor fast, improve cooling rate, the safe handling of guarantee equipment, guarantee equipment can carry out the next measurement work fast.

Drawings

FIG. 1 is a schematic structural diagram of a 5400kV high-precision pure-resistance lightning impulse surge resistor voltage divider of the present invention;

FIG. 2 is a cross-sectional view of a bracket of a 5400kV high-precision pure-resistance lightning impulse surge resistor voltage divider of the present invention;

FIG. 3 is a cross-sectional view of a bracket of a 5400kV high-precision pure-resistance lightning impulse surge resistor divider of the present invention;

FIG. 4 is a cross-sectional view of the base of a 5400kV high-precision pure-resistance lightning impulse surge resistor divider of the present invention;

FIG. 5 is a cross-sectional view of the top of the insulator ring of a 5400kV high precision pure resistance lightning impulse surge resistor voltage divider of the present invention;

FIG. 6 is a schematic structural diagram of a spiral plate of a 5400kV high-precision pure-resistance lightning impulse surge resistor voltage divider according to the present invention;

in the figure: 1-insulating ring, 2-base, 3-equalizing ring, 4-support rod, 5-support, 6-roller, 7-fixing ring, 8-epoxy rod diagonal draw bar, 9-pulley, 10-clamping groove, 11-internal groove, 12-bearing I, 13-screw, 14-spring, 15-high voltage resistor, 16-low voltage resistor, 17-insulating rod, 18-limiting plate, 19-clamping plate I, 20-voltage sensor, 21-guide rod, 22-clamping plate II, 23-connecting rod, 24-spiral plate and 25-bearing II.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 6, the present invention provides a technical solution: a5400 kV high-precision pure resistance lightning impulse resistor divider comprises an insulating ring 1, a base 2 and a grading ring 3, wherein the insulating ring 1 is installed at the top of the base 2 through bolts, the grading ring 3 is installed at the top of the insulating ring 1 through a support rod 4, a support 5 is welded at the outer side of the base 2, a roller 6 is installed at the bottom of the support 5, a fixing ring 7 is welded at the outer side of the insulating ring 1, an epoxy rod diagonal draw bar 8 is connected onto the fixing ring 7, a pulley 9 is installed at the top of the support 5, a clamping groove 10 and an inner groove 11 are formed in the inner side of the support 5, the clamping groove 10 is arranged at the top of the inner groove 11, a bearing I12 is clamped in the inner side of the inner groove 11, a screw 13 is arranged on one side of the bearing I12, the screw 13 is connected with the bearing I12 through a spring 14, and a high-voltage resistor, low voltage resistor 16 sets up the bottom at high voltage resistor 15, high voltage resistor 15 and low voltage resistor 16 all fix on the inner wall of insulator ring 1 through insulator spindle 17, guide arm 21 has all been welded at high voltage resistor 15's top and low voltage resistor 16's bottom, the welding has limiting plate 18 on the guide arm 21, one side of low voltage resistor 16 is provided with voltage sensor 20, guide arm 21 includes guide arm one and guide arm two, the outside side cover of guide arm one is equipped with cardboard one 19, the outside side cover of guide arm two is equipped with cardboard two 22, the bottom of cardboard two 22 is provided with spiral plate 24, the welding has connecting rod 23 on the spiral plate 24, bearing two 25 are installed at the top of guide arm two.

In a preferred embodiment of the present invention, the grading ring 3 is connected to a high-voltage resistor 15 through a wire, the high-voltage resistor 15 is connected to a low-voltage resistor 16 through a wire, and the low-voltage resistor 16 is connected to a voltage sensor 20 through a wire.

As a preferred embodiment of the present invention, an external thread i is provided on an outer side of the guide rod i, and an internal thread i is provided on an inner side of the clamping plate i 19, and the external thread i is matched with the internal thread i.

As a preferred embodiment of the present invention, a second external thread is formed on the outer side of the second guide rod, a second internal thread is formed on the inner side of the second clamping plate 22, and the second external thread is matched with the second internal thread.

In a preferred embodiment of the present invention, the inner diameter of the spiral plate 24 is larger than the outer diameter of the high voltage resistor 15, the outer diameter of the spiral plate 24 is smaller than the inner diameter of the insulating ring 1, and the spiral plate 24 is welded to the second clamping plate 22 through a connecting rod 23.

In a preferred embodiment of the present invention, the outer diameters of the first clamping plate 19 and the second clamping plate 22 are equal to the inner diameter of the insulating ring 1, the inner diameter of the first clamping plate 19 is equal to the outer diameter of the first guide rod, and the inner diameter of the second clamping plate 22 is equal to the outer diameter of the second guide rod.

In a preferred embodiment of the present invention, the inner side of the inner tank 11 is provided with a third female screw, the outer side of the screw 13 is provided with a third male screw, and the third female screw is engaged with the third male screw.

As a preferred embodiment of the present invention, one end of the diagonal tie 8 of the epoxy rod is connected to the fixing ring 7, and the other end of the diagonal tie 8 of the epoxy rod passes through the clamping groove 10 around the pulley 9 and is connected to the first bearing 12.

In a preferred embodiment of the present invention, the bearing one 12 is connected to the screw 13 through a spring 14, the roller 6 is a polyurethane roller, and the grading ring 3 is a thin-walled aluminum grading ring.

In a preferred embodiment of the present invention, the number of the high voltage resistors 15 is 3, and the number of the supports 5 is 3.

The working principle is as follows: when the device is used, a base 2, a support 5, an insulating ring 1 and a grading ring 3 are transported to the site, the base 2 is installed on the support 5 through bolts, the grading ring 3 is installed at the top of the insulating ring 1 through a support rod 4, the grading ring 3 is connected with a high-voltage resistor 15 on the inner side of the insulating ring 1 through an electric wire, one end of an epoxy rod diagonal draw bar 8 is fixed on a fixing ring 7, the bottom of the insulating ring 1 is installed on the base 2 through bolts, the other end of the epoxy rod diagonal draw bar 8 is fixed on a bearing 12, the bearing 12 is inserted into the inner side of an inner groove 11, the epoxy rod diagonal draw bar 8 is clamped in a clamping groove 10, one side of the epoxy rod diagonal draw bar 8 is clamped on a pulley 9, a screw 13 is screwed into the inner groove 11 in a rotating mode, so that the top of the epoxy rod diagonal draw bar 8 moves towards the inner side of the inner groove 11, and the epoxy rod diagonal draw, the bottom of the epoxy rod diagonal draw bar 8 pulls the spring 14 outwards, so that the spring 14 is compressed, the epoxy rod diagonal draw bar 8 is fixed by the spring 14, a certain tension is kept between the epoxy rod diagonal draw bar 8 and the fixing ring 7, the epoxy rod diagonal draw bar 8 is prevented from being too loose or too tight, the tension stability of the epoxy rod diagonal draw bar 8 is ensured, when the insulating ring 1 slightly shakes, the epoxy rod diagonal draw bar 8 can be effectively prevented from being pulled off, and the equipment can convey parts to the site for quick installation, the equipment adopts a structural mode of site assembly, can be convenient to convey, and is considered in terms of stability, the grading ring 3 adopts a thin-wall aluminum structure, so as to achieve the characteristics of light weight, corrosion resistance, non-oxidation, small wind resistance and the like, the pressure of the grading ring 3 on the insulating ring 1 is reduced, the use safety of the insulating ring 1 can be effectively ensured, when thunder is measured, the grading ring 3 receives thunder, the voltage of the thunder is calculated by utilizing the relation between the resistance and the voltage and is transmitted to the ground through the high-voltage resistance 15 and the low-voltage resistance 16, when the thunder passes through the high-voltage resistance 15 and the low-voltage resistance 16, a large amount of heat is produced, so that the gas inside the insulating ring 1 is rapidly heated and expanded, the two clamping plates 22 and the first clamping plate 19 are respectively upwards or downwards rapidly rotated through threaded screws, the two clamping plates 22 drive the spiral plate 23 to rotate, the two clamping plates 22 move to the outer side of the second bearing 25, under the action of inertia, the spiral plate 23 rotates to upwards pump out the high-temperature air inside the insulating ring 1, the cold air flows into the insulating ring 1 from the bottom of the base 2, so as to rapidly cool the high-voltage resistance 15 and the low-voltage resistance 16, the cooling rate is improved, and the safe use of the equipment is guaranteed, the next measurement work can be carried out fast to the security equipment.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.