High-speed interphase transmission supporting device for 252kV and above high-voltage circuit breaker

Abstract

The utility model relates to a high-speed interphase transmission supporting device for 252kV and above high-voltage circuit breakers, which comprises a supporting base, and two sides of the supporting base are mounted on a base of a high-voltage circuit breaker through matching of bolts and nuts. The supporting assembly is arranged on the supporting base and comprises a clamping piece and a supporting block, the supporting block is fixed to the supporting base through cooperation of a bolt and a nut, the clamping piece comprises a pair of clamping blocks, the sides, adjacent to each other, of the two clamping blocks are each provided with an arc-shaped groove, and the arc-shaped grooves of the two clamping blocks are jointly matched to clamp the interphase pull rod; the two clamping blocks are fixed through cooperation of bolts and nuts, and the clamping pieces are hinged to the supporting blocks through cooperation of the connecting plates. Compared with the prior art, the interphase transmission device has the advantages that interphase transmission can be achieved only by adopting one interphase connecting rod through mutual matching of the supporting base, the clamping piece, the supporting block and the connecting plate, a clamping fixing mode is adopted in the middle, holes do not need to be formed in the interphase connecting rod, positioning is flexible, the strength of the interphase connecting rod cannot be affected, and installation and debugging are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of circuit breaker, especially a 252kV and above high voltage circuit breaker high speed interphase transmission support device. BACKGROUND

[0002] The 252kV and above three-phase mechanical linkage high voltage circuit breaker, when the interphase distance is more than 4m and above, due to the large interphase distance and the high voltage grade circuit breaker product, the operation work is big, the speed is fast, and the rigidity of the interphase transmission connecting rod is a key technical index.

[0003] At present, the stability design of the interphase connecting rod adopts the mode of increasing the support in the middle, but the existing design has the following defects: first, the support position adopts the connecting rod on both sides, four connecting rods are needed to connect the interphase, and the on-site installation and debugging are complex; second, the interphase connecting rod has a hole in the middle, one interphase connecting rod needs to use three holes for fixing, which is not convenient for adjustment, and the hole in the middle of the connecting rod will affect the strength of the connecting rod. UTILITY MODEL CONTENTS

[0004] The utility model wants to solve the technical problem to provide a 252kV and above high voltage circuit breaker high speed interphase transmission support device of simple on-site installation and debugging.

[0005] In order to solve the above technical problem, the technical scheme of the utility model is as follows: a 252kV and above high voltage circuit breaker high speed interphase transmission support device, the innovation point is that the support device is used for supporting the interphase connecting rod of the high voltage circuit breaker, and the support device comprises

[0006] A support base, the two sides of the support base are installed on the base of the high voltage circuit breaker through the cooperation of bolts and nuts;

[0007] A support assembly arranged on the support base, the support assembly comprises clamping pieces and support blocks distributed upwards and downwards, the support blocks are fixed on the support base through the cooperation of bolts and nuts, the clamping pieces comprise a pair of clamping blocks arranged side by side, an arc-shaped groove is formed in the side of each clamping block adjacent to each other, and the arc-shaped grooves of the two clamping blocks are cooperated to clamp the interphase pull rod, the two clamping blocks are fixed through the cooperation of bolts and nuts, and the clamping pieces are hinged with the support blocks through the cooperation of connecting plates.

[0008] Further, the cooperation between the clamping piece, the connecting plate and the support block is that the connecting plate has two in total, the lower sides of the two connecting plates are respectively located on the two sides of the support block, and the hinging between the two connecting plates and the support block is realized through the cooperation of the first pin shaft and the first lock pin, the upper sides of the two connecting plates are respectively located on the outer sides of the two clamping blocks, and the hinging between the two connecting plates and the two clamping blocks is realized through the cooperation of the second pin shaft and the second lock pin.

[0009] Further, the upper end face of the support base is further provided with a positioning groove for positioning and mounting the support block, the bottom end of the support block is arranged in the positioning groove, and the size of the positioning groove is greater than that of the support block, a through hole for the bolt to pass through is further arranged at the positioning groove of the support base, and the through hole is a waist-shaped hole, and the through hole extends along the long axis direction of the support base.

[0010] Further, the side of the clamping block close to the support block is further provided with an avoiding groove for avoiding the connecting plate, and the avoiding grooves are respectively arranged on the sides of the clamping blocks away from the other clamping block.

[0011] Further, the positioning pin is further arranged between the support block and the connecting plate.

[0012] The support base, the clamping piece, the support block and the connecting plate are cooperated with each other, only one phase-to-phase connecting rod is needed to realize phase-to-phase transmission, the clamping fixing mode is adopted in the middle, the hole needs not to be opened on the phase-to-phase connecting rod, the positioning is flexible, the strength of the phase-to-phase connecting rod is not affected, and installation and debugging are convenient.

[0013] The hinging between the clamping piece and the support block is realized through the cooperation of the two connecting plates, the clamping piece can swing relative to the support block, and then the swinging of the clamped phase-to-phase connecting rod can be realized, so that the phase-to-phase transmission is realized.

[0014] The avoiding grooves on the clamping blocks are designed to facilitate the installation of the connecting plate, avoid the whole connecting plate from being too protruded from the outer side of the clamping block when the connecting plate is connected with the clamping block, and cooperate with the connection between the connecting plate and the support block, so that the two sides of the connecting plate can be stably connected with the clamping block and the support block. DRAWINGS

[0015] Figure 1 It is a schematic view of the 252kV and above high-voltage circuit breaker high-speed phase-to-phase transmission support device.

[0016] Figure 2 It is a cooperation schematic view of the support device and the circuit breaker phase column in the utility model. CONCRETE EMBODIMENT

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] like Figure 1 , Figure 2 The diagram shows a high-speed phase-to-phase transmission support device for a 252kV and above high-voltage circuit breaker. The high-voltage circuit breaker includes a base and three circuit breaker phase columns 1 installed in parallel on the base. A transmission crank arm 11 is connected to the bottom end of the circuit breaker phase column 1. The swing point and hinge point of two adjacent crank arms 11 can be connected to form a parallelogram. The crank arms 11 of two adjacent circuit breaker phase columns 1 are connected by phase-to-phase connecting rods 2 to achieve synchronous transmission. The support device is used to support the phase-to-phase connecting rods 2 of the high-voltage circuit breaker.

[0019] The distribution direction of the three circuit breaker phase poles 1 is defined as the first direction, and the horizontal direction perpendicular to the first direction is defined as the second direction.

[0020] Support device includes

[0021] A support base 3 is a rectangular plate that extends along a second direction, and the two sides of the support base 3 along its long axis are mounted on the base of the high-voltage circuit breaker by bolts and nuts.

[0022] A support assembly is mounted on a support base 3. The support assembly includes clamps and a support block 4 distributed vertically. The support block 4 is cuboid in shape, and its bottom end is fixed to the support base 3 by bolts and nuts. A positioning groove 31, also cuboid in shape, is formed on the upper surface of the support base 3 to accommodate the positioning of the support block 4. The bottom end of the support block 4 is placed within the positioning groove 31, and the size of the positioning groove 31 is larger than the size of the bottom end of the support block 4, allowing the support block 4 to slide within the positioning groove 31. A through hole, which is oblong in shape, is also formed at the positioning groove 31 of the support base 3, extending along the long axis of the support base 3. The design of the positioning groove 31 on the support base 3, combined with the oblong through hole, allows the support block 4 to be finely adjusted relative to the support base 3 within a certain range, thus providing better support for the interphase connecting rod 2.

[0023] The clamping component includes a pair of clamping blocks 5 arranged side by side along the second direction on both sides of the interphase tie rod 2. The clamping blocks 5 are cuboid in shape. An arc-shaped groove is opened on the side of each adjacent clamping block 5. The arc-shaped grooves of the two clamping blocks 5 cooperate to clamp the interphase tie rod 2. There is a certain gap between the two clamping blocks 5. The two clamping blocks 5 are fixed by bolts and nuts. The clamping component is hinged to the support block 4 through the cooperation of the connecting plate 6.

[0024] The cooperation between the clamping piece, the connecting plate 6 and the supporting block 4 is that the connecting plate 6 has two in total, the connecting plate 6 is a rectangular plate, the lower sides of the two connecting plates 6 are respectively located at the two sides of the supporting block 4, and the hinging between the two connecting plates 6 and the supporting block 4 is realized through the cooperation of the first pin shaft 7 and the first lock pin 8, and the through holes for the first pin shaft 7 to pass through horizontally are also formed on the connecting plate 6 and the supporting block 4, after the first pin shaft 7 passes through the through holes on the connecting plate 6 and the supporting block 4, the end of the first pin shaft 7 is limited by the first lock pin 8, so that the hinging between the connecting plate 6 and the supporting block 4 is realized.

[0025] The upper sides of the two connecting plates 6 are respectively located at the outer sides of the two clamping blocks 5, and the hinging between the two connecting plates 6 and the two clamping blocks 5 is realized through the cooperation of the second pin shaft 9 and the second lock pin 10, and the through holes for the second pin shaft 9 to pass through are also formed on the connecting plate 6 and the clamping block 5, after the second pin shaft 9 passes through the through holes on the connecting plate 6 and the clamping block 5, the end of the second pin shaft 9 is limited by the second lock pin 10, so that the hinging between the connecting plate 6 and the clamping block 5 is realized. The hinging between the clamping piece 5 and the supporting block 4 is realized through the cooperation of the two connecting plates 6, so that the clamping piece can swing relative to the supporting block 4, and then the swinging of the clamped phase-to-phase connecting rod 2 can be realized, so as to realize phase-to-phase transmission.

[0026] The positioning pin 12 is also arranged between the supporting block 4 and the connecting plate 6, the through hole for the positioning pin 12 to pass through is formed on the connecting plate 6, and the positioning hole for the positioning pin 12 to insert is also formed on the supporting block 4, after the positioning pin 12 passes through the through hole on the connecting plate 6 and then inserts into the positioning hole on the supporting block 4, the relative fixing between the connecting plate 6 and the supporting block 4 is realized.

[0027] The clamping block 5 also has an avoiding groove for avoiding the connecting plate 6 on the side close to the supporting block 4, and the avoiding grooves are respectively located on the sides of the clamping block 5 away from the other clamping block 5. The design of the avoiding grooves on the clamping block 5 is to facilitate the installation of the connecting plate 6, to avoid the whole connecting plate 6 being too protruded from the outer side of the clamping block 5 when the connecting plate 6 is connected with the clamping block 5, and to cooperate with the connection between the connecting plate 6 and the supporting block 4, so that the two sides of the connecting plate 6 can be stably connected with the clamping block 5 and the supporting block 4.

[0028] The supporting device of the utility model, through the mutual cooperation of supporting base 3, clamping piece, supporting block 4 and connecting plate 6, only need to adopt a phase-to-phase connecting rod 2 to realize phase-to-phase transmission, the middle of phase-to-phase connecting rod 2 adopts the fixed mode of clamping, need not to open hole on phase-to-phase connecting rod 2 again, position flexibly, also can not affect the strength of phase-to-phase connecting rod 2, simple structure, installation process, phase-to-phase connecting rod 2 need not to be disassembled from product, also need not to transform to punch, do not affect the strength of phase-to-phase connecting rod 2 under high-power operating condition of high speed, and simple and convenient, high efficiency, can be applied to 252kV and above high-voltage alternating current circuit breaker, product with special design requirement of more than 4m and above phase-to-phase distance.

[0029] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change and modification of the above embodiments, which does not depart from the technical solution of the present application, and which is based on the technical essence of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A high-speed interphase transmission support device for 252 kV and above high-voltage circuit breakers, characterized in that: The application discloses a support device for supporting an inter-phase connecting rod of a high-voltage circuit breaker A support base is installed on the base of the high-voltage circuit breaker through the cooperation of bolts and nuts A support assembly is arranged on the support base, and the support assembly comprises clamping pieces and support blocks arranged in an up-down mode, the support blocks are fixed on the support base through the cooperation of bolts and nuts, the clamping pieces comprise a pair of clamping blocks arranged in parallel, an arc-shaped groove is formed on the side of each clamping block adjacent to the other clamping block, the arc-shaped grooves of the two clamping blocks are cooperatively arranged to clamp the inter-phase connecting rod, the two clamping blocks are fixed through the cooperation of bolts and nuts, and the clamping pieces are hingedly connected with the support blocks through the cooperation of connecting plates.

2. The high speed interphase transmission support device for 252 kV and above high voltage circuit breaker according to claim 1, characterized in that: The cooperation among the clamping pieces, the connecting plates and the support blocks is as follows: two connecting plates are arranged, the lower sides of the two connecting plates are arranged on the two sides of the support blocks, and the two connecting plates are hingedly connected with the support blocks through the cooperation of first pin shafts and first locking pins; the upper sides of the two connecting plates are arranged on the outer sides of the two clamping blocks, and the two connecting plates are hingedly connected with the two clamping blocks through the cooperation of second pin shafts and second locking pins.

3. The high speed interphase transmission support device for 252 kV and above high voltage circuit breaker according to claim 1, characterized in that: An positioning groove is further formed in the upper end surface of the support base to position and install the support blocks, the bottom end of the support block is arranged in the positioning groove, the size of the positioning groove is greater than that of the support block, a through hole is further formed in the positioning groove of the support base to pass through the bolt, the through hole is a waist-shaped hole, and the through hole extends along the long axis direction of the support base.

4. The high speed interphase transmission support device for 252 kV and above high voltage circuit breaker according to claim 1, characterized in that: The side of the clamping block close to the support block is further provided with an avoiding groove for avoiding the connecting plate, and the avoiding grooves are arranged on the sides of the clamping blocks away from the other clamping block.

5. The high speed interphase transmission support device for 252 kV and above high voltage circuit breaker according to claim 1, characterized in that: Positioning pins are further arranged between the support blocks and the connecting plates.

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