Auxiliary device for assembling arc extinguish chamber with closing resistor

Abstract

An auxiliary device for assembling an arc extinguish chamber with a closing resistor belongs to the field of high-voltage device assembling and comprises a tank feeding car, a tank inner guide rail and a tank outer guide rail, the tank feeding car is in sliding connection with the tank inner guide rail and the tank outer guide rail, and the tank outer guide rail and a supporting trolley are arranged and can serve as an initial station to bear the tank feeding car. Before the arc extinguish chamber is assembled, the in-tank guide rail and the out-tank guide rail only need to be in butt joint, the in-tank guide rail and the out-tank guide rail can be aligned in advance, the in-tank guide rail and the out-tank guide rail are in butt joint through the flange, butt joint is rapid and convenient, the positioning precision is high, and only the arc extinguish chamber needs to be hoisted to the in-tank guide rail in the follow-up process. Alignment of the tank inlet car and the in-tank guide rail is not affected by the size and weight of the arc extinguish chamber any more, operation is easy, and installation precision is higher. In addition, the arrangement of the guide rail outside the tank provides a larger operation space, and can be suitable for the assembly work of a large-size and heavy-weight arc extinguish chamber with a closing resistor.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage device assembly, in particular to an auxiliary device for assembling an arc extinguishing chamber with a closing resistor. Background Art

[0002] With the development of the power industry, the capacity of the power grid is also expanding, requiring circuit breakers to have sufficiently large breaking capacity. The voltage level is also gradually progressing to 800kV and 1100kV. As the voltage level increases, the size of the circuit breaker also gradually increases. As the core component of the circuit breaker, the arc extinguishing chamber will increase in size and weight accordingly.

[0003] At present, tooling for assisting the assembly of arc extinguishing chambers has appeared (such as publication number CN207250432U). The guide rail is connected to the tank port through a flange, and the guide rail is slidably connected to the flange and the inner wall of the tank. When in use, the guide rail can be pushed into the tank. A trolley is provided on the guide rail body, and the arc extinguishing chamber is moved into or out of the tank as a whole through the trolley.

[0004] With the existing arc extinguishing chamber assembly auxiliary tooling, after the guide rail is pushed into the tank body, the trolley and the arc extinguishing chamber are sent as a whole into the guide groove of the guide rail body in the tank body through the bracket. The bracket mainly plays a supporting role. The docking of the trolley and the guide groove of the guide rail in the tank relies on manual alignment, and the alignment process is complicated and inefficient. Moreover, due to the reliance on manual alignment, when the arc extinguishing chamber is too large, it will block the line of sight and affect the alignment accuracy. The heavy weight also makes it inconvenient to adjust the trolley. For the arc extinguishing chamber of a high-voltage circuit breaker, closing resistors will be installed at both ends of the arc extinguishing chamber, which will further increase the weight and volume of the arc extinguishing chamber. Conventional arc extinguishing chamber assembly auxiliary tooling is not applicable. Utility Model Content

[0005] In order to solve the technical problem in the above background technology that conventional arc extinguishing chamber assembly auxiliary tooling is not suitable for arc extinguishing chamber assembly work with closing resistors installed at both ends, the utility model provides an auxiliary device for assembling an arc extinguishing chamber with closing resistors.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides an auxiliary device for assembling an arc extinguishing chamber with a closing resistor, comprising a tank loading vehicle,

[0008] The tank inner guide rail has several support wheel pairs installed at intervals along its length at the bottom of the tank inner guide rail. The support wheel pairs are used to contact the inner wall of the tank. A flange is fixed at the bottom of one end of the tank inner guide rail. The flange is provided with a through hole corresponding to the threaded hole of the tank port;

[0009] The outer guide rail of the tank is fixedly installed on the supporting trolley. A flange is fixedly provided at the bottom of one end of the outer guide rail of the tank. The outer guide rail of the tank is connected to the inner guide rail of the tank through the flange.

[0010] The tank feed car is slidably connected to the guide rails inside the tank and the guide rails outside the tank. The setting of the guide rails outside the tank and the supporting trolley can be used as the initial work station to carry the tank feed car. Before assembling the arc extinguishing chamber, it is only necessary to dock the guide rails inside the tank with the guide rails outside the tank to achieve advance alignment of the tank feed car and the guide rails inside the tank. The guide rails inside the tank and the guide rails outside the tank are docked through flanges, and the docking is fast, convenient and has high positioning accuracy. Subsequently, it is only necessary to hoist the arc extinguishing chamber onto the tank feed car. The alignment of the tank feed car and the guide rails inside the tank is no longer affected by the volume and weight of the arc extinguishing chamber. The operation is simple and the installation accuracy is higher. In addition, the setting of the guide rails outside the tank provides a larger operating space, which can be suitable for the assembly of large-volume and heavy arc extinguishing chambers with closing resistors.

[0011] Preferably, the guide rail inside the tank includes a bottom plate, on which two oppositely arranged guide rail bodies are fixed, and the supporting wheel pair is installed at the bottom of the bottom plate to facilitate the movement of the guide rail inside the tank.

[0012] Preferably, the guide rail body is an L-shaped structure, and a number of guide wheels are installed on the side walls of the vertical section of the guide rail at intervals along its length. The guide wheels contact the side walls of the tank truck, guiding the tank truck while avoiding wear between the tank truck and the guide rail body.

[0013] Preferably, the support wheel pair contains two oppositely arranged support wheels, which are arranged obliquely downward along the radial direction of the tank body. On the one hand, the bottom plate can be used to avoid the shielding cover located at the bottom of the tank body. On the other hand, it can adapt to the curvature of the side wall of the tank body to ensure the horizontality of the bottom plate, and then ensure the horizontality of the guide rail body, thereby improving the installation accuracy of the arc extinguishing chamber.

[0014] Preferably, the angle between the two oppositely arranged support wheels is in the range of 70°-100°.

[0015] Preferably, the outer guide rail of the tank includes two L-shaped guide rail bodies, and the cross-sectional dimensions of the guide rail bodies of the outer guide rail of the tank are the same as those of the inner guide rail of the tank, so as to facilitate the smooth travel of the tank-entering vehicle between the inner guide rail and the outer guide rail of the tank.

[0016] Preferably, the supporting trolley includes a supporting plate, a plurality of retractable supporting legs are fixedly provided at the bottom of the supporting plate, and rollers are provided at the bottom of the supporting legs to facilitate the adjustment of the position and height of the guide rail outside the tank to meet different working conditions.

[0017] Preferably, a first support portion is fixedly provided at the center position of the tank feed vehicle, and second support portions are fixedly provided at both ends of the tank feed vehicle in the direction of travel, so as to facilitate the support of the arc extinguishing chamber with the closing resistor as a whole.

[0018] It can be seen from the above technical solutions that the advantages of the present invention are:

[0019] 1. The setting of the outer guide rail and the supporting trolley can be used as the initial work station to carry the tank-entering car. Before assembling the arc extinguishing chamber, it is only necessary to connect the inner guide rail of the tank with the outer guide rail of the tank to achieve advance alignment of the tank-entering car and the inner guide rail of the tank. The inner guide rail and the outer guide rail of the tank are connected through flanges, which is fast, convenient and has high positioning accuracy. Subsequently, it is only necessary to hoist the arc extinguishing chamber onto the tank-entering car. The alignment of the tank-entering car and the inner guide rail of the tank is no longer affected by the volume and weight of the arc extinguishing chamber. The operation is simple and the installation accuracy is higher. In addition, the setting of the outer guide rail provides a larger operating space, which can be suitable for the assembly of large-volume and heavy arc extinguishing chambers with closing resistors.

[0020] 2. The support wheel pair contains two oppositely arranged support wheels, which are arranged obliquely downward along the radial direction of the tank body. On the one hand, the bottom plate can be used to avoid the shielding cover located at the bottom of the tank body. On the other hand, it can adapt to the curvature of the side wall of the tank body to ensure the levelness of the bottom plate, and then ensure the levelness of the guide rail body, thereby improving the installation accuracy of the arc extinguishing chamber.

[0021] 3. The support trolley includes a support plate, and a number of retractable legs are fixed at the bottom of the support plate. The bottom of the legs are provided with rollers to facilitate the adjustment of the position and height of the guide rail outside the tank to meet different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the auxiliary device in use according to one or more embodiments of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of a tank guide rail in use according to one or more embodiments of the present invention;

[0025] Figure 3 This is a partially enlarged structural schematic diagram of the end of a tank loading vehicle according to one or more embodiments of the present invention;

[0026] The components represented by the reference numerals in the figure are:

[0027] 1. Guide rail inside the tank; 11. Bottom plate; 12. Support wheel; 13. Guide rail body; 14. Guide wheel; 2. Tank feed car; 21. First support part; 22. Second support part; 3. Guide rail outside the tank; 4. Support trolley; 5. Tank body; 6. Arc extinguishing chamber with closing resistor; 7. Flange. DETAILED DESCRIPTION

[0028] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0029] In a typical embodiment of the present invention, Figure 1-Figure 3 As shown, an auxiliary device for assembling an arc extinguishing chamber with a closing resistor is proposed, comprising: an inner tank guide rail 1, a tank feed vehicle 2, and an outer tank guide support assembly. The inner tank guide rail 1 is installed in the circuit breaker tank body (hereinafter referred to as the tank body 5) and is used to support and guide the tank feed vehicle 2. The outer tank guide support assembly is arranged on the outside of the tank body 5. One end of the outer tank guide support assembly is connected to one end of the inner tank guide rail 1, and is used to support the tank feed vehicle 2 and guide and transport it to the inner tank guide rail 1. The tank feed vehicle 2 is slidably connected to the inner tank guide rail 1 and the outer tank guide support assembly, so that the tank feed vehicle 2 can move back and forth between the inner tank guide rail 1 and the outer tank guide support assembly.

[0030] like Figure 2 As shown, the guide rail 1 in the tank includes a base plate 11, a support wheel 12, a guide rail body 13 and a guide wheel 14. The guide rail body 13 is an L-shaped structure. There are two guide rail bodies 13, and the two guide rail bodies 13 are relatively fixed on the base plate 11. A plurality of support wheel pairs are installed at intervals along the length direction of the bottom of the base plate 11. Each pair of support wheel pairs contains two relatively arranged support wheels 12. The support wheels 12 are arranged obliquely downward along the radial direction of the tank body 5. The support wheels 12 are rotatably connected to the base plate 11 through a rotating shaft, so that there is a set angle between the two relatively arranged support wheels 12, and the angle range is 70°-100°. On the one hand, the base plate 11 can be used to avoid the shielding cover located below the tank body 5. On the other hand, it can adapt to the curvature of the side wall of the tank body 5 to ensure the levelness of the base plate 11, and then ensure the levelness of the guide rail body 13, thereby improving the installation accuracy of the arc extinguishing chamber.

[0031] The guide rail body 13 includes a horizontal section and a vertical section. A number of guide wheels 14 are installed on the side walls of the vertical section at intervals along its length. The guide wheels 14 are fixedly connected to the vertical section through a mounting seat. The guide wheels 14 are rotatably connected to the mounting seat. The spacing between the guide wheels 14 of the two oppositely arranged guide rail bodies 13 is the same as the width of the tank truck 2. Therefore, the guide wheels 14 contact the side walls of the tank truck 2, guiding the tank truck 2 while avoiding wear between the tank truck 2 and the guide rail body 13.

[0032] A flange 7 is fixedly provided at the bottom of one end of the guide rail 1 inside the tank close to the guide support assembly outside the tank. A through hole corresponding to the threaded hole of the tank port is provided on the flange 7. One end of the guide rail 1 inside the tank is detachably connected to the port of the tank body 5 and the guide support assembly outside the tank through the flange 7. A baffle is fixedly provided at the other end of the guide rail 1 inside the tank to prevent the tank car 2 from derailing.

[0033] The tank outer guide support assembly includes a tank outer guide rail 3 and a support trolley 4. The tank outer guide rail 3 is fixedly set on the support trolley 4. The tank outer guide rail 3 is also composed of two L-shaped guide rail bodies 13, and the cross-sectional size of the guide rail body 13 of the tank outer guide rail 3 is the same as that of the tank inner guide rail 1. The support trolley 4 includes a support plate, a plurality of legs and rollers. The legs are fixedly set at the bottom of the support plate, and the tank outer guide rail 3 is fixedly installed on the support plate. The rollers are rotatably set at the bottom of the legs. The legs are a retractable structure, specifically a double-headed screw structure, which can be adjusted in length according to needs, and then the height of the tank outer guide rail 3 can be adjusted to ensure that the tank outer guide rail 3 is aligned with the tank inner guide rail 1.

[0034] The bottom of one end of the outer tank guide rail 3 for docking with the inner tank guide rail 1 is also fixed with a flange 7, so that the outer tank guide rail 3, the inner tank guide rail 1 and the tank body 5 can be detachably connected through the cooperation of the flange 7 and bolts.

[0035] The setting of the outer tank guide rail 3 and the supporting trolley 4 can be used as the initial work station to carry the tank-entering car 2. Before assembling the arc extinguishing chamber, it is only necessary to dock the inner tank guide rail 1 with the outer tank guide rail 3 to achieve advance alignment of the tank-entering car 2 and the inner tank guide rail 1, and the inner tank guide rail 1 and the outer tank guide rail 3 are docked through the flange 7. The docking is fast, convenient and has high positioning accuracy. Subsequently, it is only necessary to hoist the arc extinguishing chamber onto the tank-entering car 2. The alignment of the tank-entering car 2 and the inner tank guide rail 1 is no longer affected by the volume and weight of the arc extinguishing chamber. The operation is simple and the installation accuracy is higher. In addition, the setting of the outer tank guide rail 3 provides a larger operating space, which can be suitable for the assembly of large-volume and heavy-weight arc extinguishing chambers 6 with closing resistors.

[0036] like Figure 1 、 Figure 3 As shown, the tank feed truck 2 is provided with a first support portion 21 and a second support portion 22. The first support portion 21 is fixedly arranged at the center position of the tank feed truck 2 for connection with the bottom of the middle box body of the arc extinguishing chamber. The second support portion 22 is a support column structure. The second support portion 22 is fixedly arranged at both ends of the traveling direction of the tank feed truck 2 and is located on both sides of the first support portion 21 for supporting the closing resistors at both ends of the arc extinguishing chamber.

[0037] The specific working principle is:

[0038] First, hoist the inner guide rail 1 and push it into the tank body 5, so that the bottom plate 11 remains horizontal and the flange 7 at the end of the inner guide rail 1 fits in with the end of the tank body 5. Then, adjust the height of the legs of the support trolley 4 so that the height of the outer guide rail 3 is the same as that of the inner guide rail 1. Push the support trolley 4 so that the flange 7 at the end of the outer guide rail 3 is aligned with the flange 7 at the end of the inner guide rail 1 and fix the flange 7 to the end of the tank body 5 with bolts.

[0039] Then the arc extinguishing chamber 6 with closing resistor is hoisted as a whole onto the tank entering vehicle 2, so that the first support part 21 supports the bottom of the middle box of the arc extinguishing chamber, and the second support part 21 supports the closing resistor. Then the tank entering vehicle 2 is pushed so that the tank entering vehicle 2 moves along the outer guide rail 3 of the tank to the inner guide rail 1 of the tank, and then drives the arc extinguishing chamber 6 with closing resistor into the tank body 5 to realize the rapid assembly of the arc extinguishing chamber 6 with closing resistor.

[0040] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary device for assembling an arc extinguishing chamber with a closing resistor, comprising: The tank loading vehicle (2) is characterized in that it further comprises: A guide rail (1) in the tank, wherein a plurality of supporting wheel pairs are installed at intervals along the length direction of the bottom of the guide rail (1), and the supporting wheel pairs are used to contact the inner wall of the tank body (5). A flange (7) is fixedly provided at the bottom of one end of the guide rail (1), and a through hole corresponding to the threaded hole of the end of the tank body (5) is provided on the flange (7); The outer tank guide rail (3) is fixedly mounted on the supporting trolley (4), and a flange (7) is fixedly provided at the bottom of one end of the outer tank guide rail (3). The outer tank guide rail (3) is connected to the inner tank guide rail (1) via the flange (7); The tank inlet car (2) is slidably connected to the tank inner guide rail (1) and the tank outer guide rail (3).

2. The auxiliary device for assembling an arc extinguishing chamber with a closing resistor according to claim 1, characterized in that: The guide rail (1) in the tank comprises a bottom plate (11), two guide rail bodies (13) arranged opposite to each other are fixedly provided on the bottom plate (11), and a supporting wheel pair is installed at the bottom of the bottom plate (11).

3. The auxiliary device for assembling an arc extinguishing chamber with a closing resistor according to claim 2, characterized in that: The guide rail body (13) is an L-shaped structure, and a plurality of guide wheels (14) are installed at intervals along the length direction of the guide rail on the side wall of the vertical section.

4. The auxiliary device for assembling an arc extinguishing chamber with a closing resistor according to claim 1, characterized in that: The supporting wheel pair comprises two supporting wheels (12) arranged opposite to each other, and the supporting wheels (12) are arranged obliquely downward along the radial direction of the tank body (5).

5. The auxiliary device for assembling an arc extinguishing chamber with a closing resistor according to claim 4, characterized in that: The angle between the two oppositely arranged support wheels (12) ranges from 70° to 100°.

6. The auxiliary device for assembling an arc extinguishing chamber with a closing resistor according to claim 2, characterized in that: The outer tank guide rail (3) comprises two L-shaped guide rail bodies (13), and the cross-sectional dimensions of the guide rail bodies (13) of the outer tank guide rail (3) are the same as those of the inner tank guide rail (1).

7. The auxiliary device for assembling an arc extinguishing chamber with a closing resistor according to claim 1, characterized in that: The supporting trolley (4) comprises a supporting plate, a plurality of retractable supporting legs are fixedly provided at the bottom of the supporting plate, and rollers are provided at the bottom of the supporting legs.

8. The auxiliary device for assembling an arc extinguishing chamber with a closing resistor according to claim 1, characterized in that: A first support portion (21) is fixedly provided at the center of the tank-feeding vehicle (2), and second support portions (22) are fixedly provided at both ends of the tank-feeding vehicle (2) in the direction of travel.

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