Longitudinal rotation isolation vacuum circuit breaker longitudinal beam and longitudinal rotation isolation vacuum circuit breaker

Abstract

The utility model provides a longitudinal rotation isolation vacuum circuit breaker longitudinal beam and a longitudinal rotation isolation vacuum circuit breaker, the longitudinal beam comprises a bearing plate, the bearing plate comprises an outer support plate, a mounting plate and an abutting plate, the two sides of the outer support plate are bent in the same direction to form the mounting plate and the abutting plate, the outer support plate is provided with a pole mounting position, and the mounting plate is provided with a bending part; one side of the inner supporting plate is connected with the edge of the abutting plate, the other side of the inner supporting plate is connected to the mounting plate, and the inner supporting plate and the bearing plate jointly define a longitudinal beam body; the first end plate is arranged at one end of the longitudinal beam body and provided with a shaft hole for a rotating shaft to penetrate through, and the rotating center of the shaft hole is located on the outer side of the longitudinal beam body; and the second end plate is arranged at the other end of the longitudinal beam main body and is provided with a pin shaft hole which is used for a pin shaft to penetrate through and is coaxial with the rotating center. The longitudinal beam is formed by bending and welding plates, so that the problems of conflict between the rigidity of the longitudinal beam and the mounting space and offset adjustment of a rotating center and a mounting surface are solved on the premise of meeting the structural strength of bearing torsion.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switchgear, in particular to a longitudinally rotating isolating vacuum circuit breaker longitudinal beam and a longitudinally rotating isolating vacuum circuit breaker. Background Art

[0002] In the longitudinal rotating functional composite type longitudinal rotating isolating vacuum circuit breaker, the longitudinal beam is used to install the three-phase pole and is connected to the operating mechanism and the trolley frame, and serves as an installation support and support for the three-phase pole. Since the three-phase pole needs to be driven to rotate under the action of the operating mechanism to realize the functions of the two high-voltage devices, the isolator and the circuit breaker, the longitudinal beam needs to have sufficient structural strength to withstand the rotating torque. The existing longitudinal beams are generally made by pipes + blocking at both ends. Due to the size of the material, the thickness of the longitudinal beam is large, and it takes up a large installation space, which conflicts with the space for its installation in the cabinet, and is not convenient for the assembly of the longitudinal rotating functional composite type longitudinal rotating isolating vacuum circuit breaker; in addition, since the rotation center of the longitudinal beam and the installation surface need to be offset and adjusted, it is difficult to achieve using pipes. Utility Model Content

[0003] The utility model aims to provide a longitudinal rotation isolating vacuum circuit breaker longitudinal beam with greater structural strength and smaller dimension in thickness direction and a longitudinal rotation isolating vacuum circuit breaker using the longitudinal rotation isolating vacuum circuit breaker longitudinal beam.

[0004] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0005] As a first aspect, the utility model provides a longitudinal beam of a longitudinally rotating isolating vacuum circuit breaker, which is used to install the pole of the longitudinally rotating isolating vacuum circuit breaker. The two ends of the longitudinal beam are respectively connected to the operating mechanism and the trolley frame through a rotating shaft and a pin shaft, and include a pressure plate, an inner support plate, a first end plate, and a second end plate. The pressure plate includes an outer support plate and a mounting plate and an abutment plate formed by bending the two sides of the outer support plate in the same direction. The side of the mounting plate away from the outer support plate protrudes from the abutment plate and is bent again along the direction from the mounting plate to the abutment plate to form a bending portion. The outer support plate is provided with a pole mounting position, and the mounting plate is provided with a pole operating component avoidance hole. The inner support plate is a flat plate, and one of the two opposite sides of the inner support plate is connected to the edge of the abutment plate away from the outer support plate, and the other side is connected to the position corresponding to the edge of the mounting plate and the abutment plate, thereby defining the longitudinal beam body together with the pressure plate. The first end plate is arranged at one end of the longitudinal beam body, the first end plate is provided with an axial hole for passing the rotating shaft, the first end plate protrudes from the outer support plate from the side of the outer support plate facing away from the inner support plate to form a first ear plate, and the rotation center of the axial hole is located on the first ear plate. The second end plate is arranged at the other end of the longitudinal beam body, the second end plate protrudes from the outer support plate from the side of the outer support plate facing away from the inner support plate to form a second ear plate, the second ear plate is provided with a pin shaft hole for passing the pin shaft, and the pin shaft hole is arranged coaxially with the rotation center.

[0006] In one embodiment, a mounting hole for inserting a screw to fix the pole is provided on the pole mounting position, and the pole operating component avoidance hole extends from the inner edge of the outer support plate to the bent portion.

[0007] In one embodiment, an avoidance groove is provided at a position of the inner support plate corresponding to the avoidance hole of the pole operating component.

[0008] In one embodiment, the mounting plate is provided with a first positioning hole, and a first positioning block is provided on a side of the inner support plate at a position corresponding to the first positioning hole, and the first positioning block is inserted into the first positioning hole.

[0009] In one embodiment, one end of the outer support plate extends away from the other end to form a second positioning block, the first end plate is provided with a second positioning hole, and the first end plate is sealed on the end of the longitudinal beam body by inserting the second positioning block into the second positioning hole.

[0010] In one embodiment, the outer support plate is provided with an ear plate positioning hole, the second end plate is embedded in the longitudinal beam body, and the second ear plate passes through the ear plate positioning hole.

[0011] In one embodiment, the second end plate is chamfered.

[0012] In one embodiment, a reinforcing rib is connected between the first end plate and the outer support plate.

[0013] In one embodiment, both the first end plate and the second end plate are provided with an avoidance gap.

[0014] As a second aspect, the utility model also discloses a longitudinal rotation isolating vacuum circuit breaker, comprising a trolley frame, a longitudinal beam, a pole and an operating mechanism, wherein the longitudinal beam is the longitudinal beam of the longitudinal rotation isolating vacuum circuit breaker mentioned above, and its two ends are respectively connected to the trolley frame and the operating mechanism through a pin shaft and a rotating shaft, and the pole is fixed on the pole mounting position.

[0015] The beneficial effects brought by the technical solution provided by the utility model are:

[0016] The longitudinal beam of the longitudinal rotation isolating vacuum circuit breaker of the utility model is formed by bending and welding a plate, and under the premise of meeting the structural strength for bearing torsion, the dimension of the longitudinal beam in the thickness direction is reduced, and the conflict between the rigidity of the longitudinal beam and the installation space, and the problem of adjusting the offset between the rotation center and the installation surface are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention.

[0018] Figure 1 A three-dimensional diagram of a longitudinal beam of a longitudinally rotating isolating vacuum circuit breaker provided in one embodiment of the utility model;

[0019] Figure 2 for Figure 1 An exploded view of the longitudinal beam of the longitudinally rotating isolating vacuum circuit breaker shown;

[0020] Figure 3 A three-dimensional diagram of a pressure plate provided in one embodiment of the utility model;

[0021] Figure 4 A three-dimensional diagram of an inner support plate provided in one embodiment of the utility model;

[0022] Figure 5 A three-dimensional diagram of a first end plate provided in one embodiment of the utility model;

[0023] Figure 6 A three-dimensional diagram of a second end plate provided in one embodiment of the utility model;

[0024] Figure 7 A schematic structural diagram of a longitudinal beam of a longitudinally rotating isolating vacuum circuit breaker provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0025] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0026] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0027] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] See also Figures 1 to 6 The utility model relates to a longitudinal beam 100 for a longitudinally rotating isolating vacuum circuit breaker, which is suitable for a longitudinally rotating functional composite longitudinally rotating isolating vacuum circuit breaker, connected with a trolley frame 200 and an operating mechanism 300 and loaded with a three-phase pole 400. The longitudinal beam of the longitudinally rotating isolating vacuum circuit breaker is formed by welding plates. Compared with the existing longitudinal beams using pipe fittings as the main body, the size in the thickness direction is reduced, miniaturization design is achieved, material loss is reduced, and the conflict between the rigidity of the longitudinal beam and the installation space can be resolved. In addition, the use of plates also facilitates laser processing, reduces energy consumption, and the positioning of the processed workpiece is more accurate.

[0030] The longitudinal beam of the longitudinal rotation isolating vacuum circuit breaker includes a longitudinal beam body 10 and a first end plate 20 and a second end plate 30 fixed at both ends of the longitudinal beam body 10. The longitudinal beam body 10 is provided with a pole mounting position for installing a pole. The first end plate 20 is provided with an axial hole 25 for passing a rotating shaft connected to the operating mechanism. The second end plate 30 is provided with a pin shaft hole 35, which is used to pass a pin shaft connected to the trolley frame.

[0031] The longitudinal beam body 10 is formed by welding a pressure plate 11 and an inner support plate 12 together, and both ends of the longitudinal beam body 10 are open.

[0032] Among them, the pressure plate 11 includes an outer support plate 111, and both sides of the outer support plate 111 are bent in the same direction to form a mounting plate 112 and an abutment plate 113 that are relatively arranged. The width of the mounting plate 112 is greater than that of the abutment plate 113 (that is, the mounting plate 112 protrudes from the abutment plate 113), and the side of the mounting plate 112 away from the outer support plate 111 is bent again to form a bent portion 114.

[0033] The outer support plate 111 is provided with a pole mounting position, and the pole mounting position is provided with a mounting hole 1110 for inserting a screw to fix the pole. It can be understood that the longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker of the utility model is used to install a three-phase pole, and thus has three groups of the mounting holes 1110. The mounting plate 112 is provided with a pole operating component avoidance hole 15 for giving way to the pole operating component. The pole operating component avoidance hole 15 extends from the inner edge of the outer support plate 111 to the bent portion 114.

[0034] The inner support plate 12 is a flat plate, one side of which is connected to the edge of the abutment plate 113, and the other side is connected to the position of the mounting plate 112 corresponding to the edge of the abutment plate 113, supporting the mounting plate 112 from the inner side of the mounting plate 112, further strengthening the strength of the pressure plate. Preferably, the inner support plate 12 is arranged in parallel with the outer support plate 111, so that the longitudinal beam body 10 has a small rectangular structure. On the premise of meeting the structural strength, the dimension of the longitudinal beam body 10 in the thickness direction is reduced to avoid conflict with the installation space. The inner support plate 12 is provided with an avoidance groove 121 at a position corresponding to the avoidance hole 15 of the pole operating component to make way for the operating component of the pole. The operating component is used to drive the moving contact in the vacuum arc extinguishing chamber of the pole to open and close the circuit.

[0035] The first end plate 20 covers one end of the longitudinal beam body 10, and the first end plate 20 extends in a direction away from the inner support plate 12 to form a first ear plate, which protrudes from the outer side of the outer support plate 111. The rotation center of the shaft hole 25 is located on the first ear plate, that is, the rotation center of the longitudinal beam is offset from the longitudinal beam body 10, so that the longitudinal beam is connected to the operating mechanism and controlled to rotate by the operating mechanism. The first end plate 20 is also provided with a screw hole 23 around the shaft hole 25, which is used to connect with the operating mechanism through the screw hole.

[0036] The second end plate 30 is embedded in the other end of the longitudinal beam body 10 , and the second end plate 30 extends in a direction away from the inner support plate 12 to form a second ear plate 31 , and the second ear plate 31 protrudes from the outer side surface of the outer support plate 111 , and the pin shaft hole 35 is arranged on the second ear plate 31 , and the pin shaft hole 35 is arranged concentrically with the shaft hole 25 .

[0037] It should be understood that in the longitudinal beam body 10 of the utility model, one side of the pressure plate 11 is bent once to form an abutment plate 113, and the other side is bent twice to form a mounting plate 112 and a bent portion 114. The required shape of the longitudinal beam is formed by bending and the structural strength of the plate is enhanced to meet the requirements of the longitudinal beam to withstand torsion and avoid deformation of the longitudinal beam during use. The dimension of the longitudinal beam body 10 in the thickness direction of the utility model is mainly the distance between the two side surfaces of the outer support plate 111 and the inner support plate 12 that are away from each other. Since the distance between the outer edges of the two support plates is smaller than the width of the mounting plate 112, the dimension of the longitudinal beam body 10 in the thickness direction can be reduced. In addition, by forming an ear plate on the end plate so that the rotation center falls on the ear plate, the eccentric design problem of the rotation center and the beam body can be solved.

[0038] In one embodiment, the mounting plate 112 is provided with a first positioning hole 1121, and the first positioning hole 1121 is arranged close to the pole operation component avoidance hole 15. A first positioning block 122 is arranged on the side of the inner support plate 12 at a position corresponding to the first positioning hole 1121, and the first positioning block 122 is inserted into the first positioning hole 1121.

[0039] By setting the first positioning hole and the first positioning block, the positioning and assembly of the inner support plate are facilitated. The setting of the first positioning hole also provides more welding points for the connection between the mounting plate and the inner support plate, thereby enhancing the strength of the connection structure between the two.

[0040] In one embodiment, one end of the outer support plate 111 extends away from the other end to form a second positioning block 1111, and the first end plate 20 is provided with a second positioning hole 21. The first end plate 20 is sealed on the end of the longitudinal beam body 10 by inserting the second positioning block 1111 into the second positioning hole 21.

[0041] In one embodiment, the outer support plate 111 is provided with an ear plate positioning hole 1112 , the second end plate 30 is embedded in the longitudinal beam body 10 , and the second ear plate 31 passes through the ear plate positioning hole 1112 .

[0042] By setting the second positioning hole 21 and the ear plate positioning hole 1112, the first end plate 20 and the second end plate 30 can be easily assembled with the longitudinal beam body 10, and the shaft hole 25 and the pin shaft hole 35 after assembly can be ensured to be concentric (coaxial), which has the positioning assembly function. Since the rotation center is set on the end plate, the rotation center can be adjusted by adjusting the structure on the end plate. When the longitudinal beam needs to have a different rotation center, the corresponding first end plate 20 and the second end plate 30 can be installed at the end position of the longitudinal beam body 10. In this way, it can meet the use of different types of longitudinal rotation isolation vacuum circuit breakers and improve the application range of the longitudinal beam product.

[0043] In one embodiment, the second end plate 30 is provided with a chamfer 32 to facilitate the installation of the second end plate 30 on the end of the longitudinal beam body 10. The chamfered position also provides more welding points for the second end plate and the longitudinal beam body, thereby ensuring the strength of the connection structure between the second end plate 30 and the longitudinal beam body 10.

[0044] In one embodiment, a rib plate 40 is connected between the first end plate 20 and the outer support plate 111 to enhance the strength of the connection structure between the first end plate 20 and the longitudinal beam body 10 to avoid separation of the first end plate 20 and the longitudinal beam body 10 due to rotation and torsion.

[0045] In one embodiment, the first end plate 20 is provided with an avoidance gap 22, and the second end plate 30 is also provided with an avoidance gap, so as to avoid interference between the longitudinal beam and other structures on the longitudinal rotation isolation vacuum circuit breaker, thereby ensuring the normal operation of the longitudinal rotation isolation vacuum circuit breaker.

[0046] It can be understood that the connection method between the pressure plate 11, the inner support plate 12, the first end plate 20, the second end plate 30, the rib plate 40 and other plates of the utility model is welding, which has low cost and high structural strength.

[0047] In addition, the longitudinal beam of the longitudinal rotation isolating vacuum circuit breaker further comprises a shaft sleeve 50, which is partially embedded in the shaft hole 25 and abuts against the outer side surface of the first end plate and is connected to the first end plate, and the rotating shaft is sleeved in the shaft sleeve.

[0048] Please combine Figure 7The utility model also relates to a longitudinal rotation isolation vacuum circuit breaker, including a trolley frame 200, a three-phase pole 400, a longitudinal beam and an operating mechanism 300, wherein the longitudinal beam is the longitudinal beam 100 of the longitudinal rotation isolation vacuum circuit breaker, and the three-phase pole 400 is installed on the outer support plate 111, one end of the longitudinal beam is connected to the trolley frame 200 by a pin shaft passing through a pin shaft hole 35, and the other end of the longitudinal beam is connected to the operating mechanism 300 by a threaded connection method through a screw hole 23 of a first end plate 20, so that the three-phase pole 400 can be driven to rotate under the control of the operating mechanism to realize the switching of the isolator and the circuit breaker. Due to the use of the longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker, the longitudinal rotation isolation vacuum circuit breaker of the utility model is smaller in size, easy to assemble and more precise in rotation control.

[0049] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0050] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. A longitudinal beam of a longitudinally rotating isolating vacuum circuit breaker, used for installing a pole of a longitudinally rotating isolating vacuum circuit breaker, wherein both ends of the longitudinal beam are connected to a control mechanism and a trolley frame through a rotating shaft and a pin shaft, respectively, and characterized in that: include: A pressure-bearing plate, the pressure-bearing plate comprising an outer support plate and a mounting plate and an abutment plate formed by bending two sides of the outer support plate in the same direction, the mounting plate protrudes from the abutment plate on one side away from the outer support plate and is bent again along the direction from the mounting plate to the abutment plate to form a bent portion, a pole mounting position is provided on the outer support plate, and a pole operating component avoidance hole is opened on the mounting plate; An inner support plate, one of the two opposite sides of the inner support plate is connected to the edge of the abutment plate away from the outer support plate, and the other side is connected to the position corresponding to the edge of the mounting plate and the abutment plate, thereby defining a longitudinal beam body together with the pressure plate; A first end plate is arranged at one end of the longitudinal beam body, the first end plate is provided with an axial hole for passing a rotating shaft, the first end plate protrudes from the outer support plate from a side of the outer support plate facing away from the inner support plate to form a first ear plate, and the rotation center of the axial hole is located on the first ear plate; The second end plate is arranged at the other end of the longitudinal beam body. The second end plate protrudes from the outer support plate on the side of the outer support plate facing away from the inner support plate to form a second ear plate. A pin shaft hole for passing a pin shaft is opened on the second ear plate, and the pin shaft hole is coaxially arranged with the rotation center.

2. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 1, characterized in that: The pole mounting position is provided with a mounting hole for inserting a screw to fix the pole, and the pole operating component avoidance hole extends from the inner edge of the outer support plate to the bent portion.

3. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 2, characterized in that: An avoidance groove is provided at a position of the inner support plate corresponding to the avoidance hole of the pole operating component.

4. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 1, characterized in that: The mounting plate is provided with a first positioning hole, and the side edge of the inner support plate is provided with a first positioning block at a position corresponding to the first positioning hole, and the first positioning block is inserted into the first positioning hole.

5. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 1, characterized in that: One end of the outer support plate extends away from the other end to form a second positioning block, the first end plate is provided with a second positioning hole, and the first end plate is sealed on the end of the longitudinal beam body in a manner that the second positioning block is inserted into the second positioning hole.

6. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 1, characterized in that: The outer support plate is provided with an ear plate positioning hole, the second end plate is embedded in the longitudinal beam body and the second ear plate passes through the ear plate positioning hole.

7. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 1, characterized in that: The second end plate is chamfered.

8. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 1, characterized in that: A reinforcing rib is connected between the first end plate and the outer support plate.

9. The longitudinal beam of the longitudinal rotation isolation vacuum circuit breaker according to claim 1, characterized in that: The first end plate and the second end plate are both provided with avoidance gaps.

10. A longitudinal rotation isolating vacuum circuit breaker, comprising a trolley frame, a longitudinal beam, a pole and an operating mechanism, characterized in that: The longitudinal beam is the longitudinal rotation isolating vacuum circuit breaker longitudinal beam as claimed in any one of claims 1 to 9, and its two ends are respectively connected to the trolley frame and the operating mechanism through a pin shaft and a rotating shaft, and the pole is fixed on the pole mounting position.

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