Operating mechanism of isolating switch

Abstract

The utility model belongs to the technical field of disconnecting switches, and relates to an operating mechanism of a disconnecting switch. Comprising a shell internally provided with a cavity, a first rotating transmission piece rotationally arranged in the cavity, a side operation wheel synchronously and rotationally connected with the first rotating transmission piece, a second rotating transmission piece coaxially and rotationally arranged with the first rotating transmission piece, an output driven piece in transmission connection with the second rotating transmission piece and a spring assembly. One end of the spring assembly is connected with the first rotating transmission part and eccentrically arranged relative to a rotating shaft of the first rotating transmission part, and the other end of the spring assembly is connected with the outer end of the second rotating transmission part. Compared with the prior art, flexible transmission is adopted between the side operation wheel and the output driven piece, so that the switching-on and switching-off speed of the mechanism does not depend on manual operation, and the switching-on and switching-off speed is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of isolating switches and relates to an operating mechanism of an isolating switch. Background Art

[0002] With the introduction of new DC high-voltage disconnectors into the market, high requirements are placed on the closing and opening speeds of disconnectors. The operating mechanism of the disconnector determines the closing and opening speeds of the disconnector. Currently, a hard transmission method is used between the output follower and the input active member of the operating mechanism of the disconnector on the market. For example, CN217588787U discloses an operating mechanism of a disconnector. Figure 4 In the operating mechanism shown in the figure, the a-axis and the b-axis are the rotating axes of the input active member, 200 and 300 are the input active members, when one of them is rotated by the operator, the output follower 300 on the other side will rotate together with the input active member, and the output follower 300 is connected to the contact module, and the rotation speed of the output follower is the closing and opening speed of the disconnector, so the closing and opening speed of the contact depends on the rotation speed of the input active member operated by the operator, which will greatly reduce the arc extinguishing effect when closing and opening. Summary of the invention

[0003] The purpose of the utility model is to provide an operating mechanism of an isolating switch, wherein a flexible connection of a spring is adopted between an output follower and an input active member (side operating wheel), and the closing speed of the switch depends only on the parameters and structure of the spring, so that the closing and opening speed of the mechanism does not depend on human operation, thereby speeding up the closing and opening speed.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] An operating mechanism of an isolating switch comprises a housing with a cavity therein, a first rotating transmission member rotatably arranged in the cavity, a side operating wheel rotatably connected to the first rotating transmission member, a second rotating transmission member rotatably arranged coaxially with the first rotating transmission member, an output driven member transmission-connected to the second rotating transmission member, and a spring assembly;

[0006] One end of the spring assembly is connected to the first rotating transmission member and is eccentrically arranged relative to the rotating shaft of the first rotating transmission member, and the other end is connected to the outer end of the second rotating transmission member so that

[0007] When the side operating wheel drives the first rotating transmission member to rotate forward, the spring assembly is first compressed until the eccentric setting end crosses the line connecting the other end and the rotating shaft of the first rotating transmission member, and then the elastic potential energy of the spring assembly is released and drives the second rotating transmission member to drive the output follower to rotate in the opposite direction.

[0008] Furthermore, a first V-shaped limit platform and a second V-shaped limit platform are provided in the shell;

[0009] The two sides of the second rotating transmission member about the rotating shaft can successively abut against the two sides of the first V-shaped limit platform during the rotation process, so that the rotation is limited in the cavity;

[0010] A rotation limit platform is provided on one side of the first rotation transmission member, and the rotation limit platform can successively abut against the two sides of the second V-shaped limit platform during the rotation process, so as to be rotationally limited in the cavity.

[0011] Furthermore, the second rotating transmission member is symmetrically arranged about the rotating shaft, and a pair of spring assemblies are provided on the second rotating transmission member, and the spring assemblies are symmetrically arranged about the center of the rotating shaft.

[0012] Furthermore, the first rotating transmission member and the second rotating transmission member are provided in pair respectively and are symmetrically arranged on both sides of the spring assembly.

[0013] Furthermore, the operating mechanism includes a pair of second rotating transmission members arranged in parallel to form a clamping plate, the side operating wheel is arranged in parallel with one of the clamping plates, the rotating shaft passes through a through hole on the clamping plate and is rotatably connected to the side operating wheel. The side operating wheel and the through hole on the clamping plate do not interfere with each other.

[0014] Furthermore, a polygonal shaft through hole is provided on the first rotating transmission member, and the shaft of the first rotating transmission member is correspondingly in the shape of a polygonal prism. The first rotating transmission member and the shaft rotate synchronously through the limiting effect of the polygon.

[0015] Furthermore, the rotating shaft is in the shape of a quadrangular prism or an octagonal prism.

[0016] Further, the output driven member is a coupling member, one side of the coupling member is provided with a first circumferential limit shaft, and the corresponding second rotating transmission member is provided with a second circumferential limit hole matched with the first circumferential limit shaft.

[0017] The coupling is connected to the second rotating transmission member for synchronous rotation via the first circumferential limiting shaft and the second circumferential limiting hole.

[0018] As a preferred technical solution, the operating mechanism includes a pair of second rotating transmission members arranged in parallel, and each second rotating transmission member is synchronously rotatably connected to a coupling member.

[0019] As a preferred technical solution, one end of the rotating shaft of the first rotating transmission member is cylindrical and is slidably embedded in a through hole on one side of the coupling member.

[0020] Furthermore, the second circumferential limiting hole includes a circular hole and a plurality of fan-shaped grooves circumferentially opened on the side edges of the circular hole.

[0021] Furthermore, the spring assembly includes a spring bracket with a U-shaped frame at the top and a U-shaped hole at the bottom, a support plate slidably mounted on the spring bracket, a main compression spring with two ends respectively abutting against the bottom of the U-shaped frame and the support plate, and a first spring shaft abutting against the end of the U-shaped frame, and a second spring shaft abutting against the bottom side of the support plate and slidably embedded in the U-shaped hole;

[0022] The first spring shaft is connected to the first rotating transmission member, and the second spring shaft is connected to the second rotating transmission member.

[0023] As a preferred technical solution, a U-shaped groove adapted to the first spring axis is also provided at the top of the U-shaped frame.

[0024] As a preferred technical solution, an arc groove matching the second spring axis is provided on the bottom side of the support plate.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] 1) The utility model adopts flexible transmission between the input active part and the output driven part, so that the speed of the mechanism closing and opening is not dependent on human operation, thereby speeding up the speed of closing and opening;

[0027] 2) The utility model can be configured with output followers on both sides of the same direction, and a centrally placed mechanism can be optionally configured according to the order;

[0028] 3) Most parts of the utility model are made using sheet metal processing technology, which is simple to manufacture and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of an operating mechanism (housing is not shown) of an isolating switch of the utility model that is connected to an output follower on one side;

[0030] Figure 2 It is a bottom view of an operating mechanism of an isolating switch in the utility model;

[0031] Figure 3 is a schematic diagram of the structure of the spring assembly;

[0032] Figure 4 An exploded view of the clamping plate, the first rotating transmission member, and the rotating shaft;

[0033] Figure 5 It is a cross-sectional view of the side operating wheel, clamping plate, spring assembly and coupling after assembly;

[0034] Figure 6 It is a structural schematic diagram of the side operating wheel;

[0035] Figure 7It is a cross-sectional view of an operating mechanism of an isolating switch in the utility model;

[0036] Figure 8 It is a three-dimensional structural schematic diagram of an operating mechanism (with a housing) of an isolating switch in the utility model;

[0037] Fig. 9 is a schematic diagram of the structure of the shell;

[0038] Description of the markings in the figure:

[0039] 2. Side operating wheel; 21. First circumferential limiting hole; 22. First circular axis surface; 3. Clamp; 31. First mounting hole; 32. Second circumferential limiting hole; 33. First limiting surface; 4. Slider assembly; 41. First rack; 42. Second rack; 5. First rotating transmission member; 51. First spring shaft; 52. Second mounting hole; 53. Third circumferential limiting hole; 54. Second limiting surface; 6. Spring assembly; 61. Spring bracket; 62. Main compression spring; 63. Support plate; 64. Second spring shaft; 7. Coupling; 71. Circular hole; 72. First circumferential limiting shaft; 8. Rotating shaft; 81. Second circumferential limiting shaft; 82. Second circular axis surface; 9. Shell; 91. Third limiting surface; 92. Fourth limiting surface. DETAILED DESCRIPTION

[0040] The following embodiments are implemented based on the above technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following embodiments.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Example

[0043] An operating mechanism of an isolating switch, with a side operating wheel 2 as an input active part, a coupling 7 as an output driven part, and the coupling 7 connected to an external contact module;

[0044] like Figure 1 and Figure 2 As shown, the clamping plates 3, the first rotating transmission members 5, and the spring assembly 6 are arranged in pairs, with two clamping plates 3 on the outermost sides, followed by two first rotating transmission members 5, and the spring assembly 6 in the middle;

[0045] like Figure 3 As shown, the spring assembly 6 consists of a spring bracket 61, a main compression spring 62, a support plate 63 and a second spring shaft 64. The main compression spring 62 is installed between the spring bracket 61 and the support plate 63. The support plate 63 abuts against the second spring shaft 64. The second spring shaft 64 is installed in the first mounting hole 31 on the clamping plate 3.

[0046] like Figure 4 , Figure 5 and Figure 6 As shown, the clamping plate 3 has a second circumferential limiting hole 32, the first rotating transmission member 5 has a third circumferential limiting hole 53, the rotating shaft 8 has a second circumferential limiting shaft 81 and a second circular axial surface 82, the coupling member 7 has a circular hole 71 and a first circumferential limiting shaft 72, and the side operating wheel 2 has a first circumferential limiting hole 21 and a first circular axial surface 22. The second axial limiting hole matches the first axial limiting shaft, the third circumferential limiting hole 53 and the first circumferential limiting hole 21 match the second circumferential limiting shaft 81, the second circular axial surface 82 matches the circular hole 71, and the first circular axial surface 22 matches the small diameter portion of the second circumferential limiting hole 32.

[0047] like Figure 7 As shown, the first rotating transmission member 5 has a second mounting hole 52, the first spring shaft 51 is installed in the second mounting hole 52, the spring bracket 61 abuts against the first spring shaft 51, and the compression force of the main compression spring 62 is applied to the first spring shaft 51 and the second spring shaft 64, and gives the first rotating transmission member 5 and the clamping plate 3 an opposite torque.

[0048] like Figure 8 and Fig. 9 As shown, the entire mechanism is placed in the housing 9, and the second limiting surface 54 on the first rotating transmission member 5 and the first limiting surface 33 on the clamping plate 3 are respectively in contact with the third limiting surface 91 and the fourth limiting surface 92 in the housing 9.

[0049] like Figure 7 As shown, the movement process of the mechanism is as follows:

[0050] The rotation of the side operating wheel 2 drives the first rotating transmission member 5 to rotate clockwise; the first rotating transmission member 5 drives the second spring shaft 64 to rotate and compresses the main compression spring 62. At this time, the main compression spring 62 gives a clockwise torque to the splint 3. Since the first limit surface 33 of the splint 3 abuts against the third limit surface 91 of the shell 9, the splint 3 does not rotate clockwise. When the spring assembly 6 passes the dead point, the main compression spring 62 gives a counterclockwise torque to the splint 3, and the splint 3 drives the coupling 7 to rotate rapidly counterclockwise until the first limit surface 33 at the other end of the splint 3 abuts against the third limit surface 91 at the other end of the shell 9 and stops moving.

[0051] The side operating wheel 2 may also directly rotate the rotating shaft 8 to drive the first rotating transmission member 5 to rotate, and the subsequent movement steps are the same as above.

[0052] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. An operating mechanism of an isolating switch, characterized in that: It comprises a housing (9) having a cavity therein, a first rotating transmission member (5) rotatably disposed in the cavity, a side operating wheel (2) rotatably connected to the first rotating transmission member (5), a second rotating transmission member rotatably disposed coaxially with the first rotating transmission member, an output driven member drivingly connected to the second rotating transmission member, and a spring assembly (6); One end of the spring assembly (6) is connected to the first rotating transmission member (5) and is eccentrically arranged relative to the rotating shaft of the first rotating transmission member (5), and the other end is connected to the outer end of the second rotating transmission member, so that When the side operating wheel (2) drives the first rotating transmission member (5) to rotate in the forward direction, the spring assembly (6) is first compressed until the eccentrically arranged end passes over the line connecting the other end and the rotating shaft of the first rotating transmission member (5), after which the elastic potential energy of the spring assembly (6) is released and drives the second rotating transmission member to drive the output driven member to rotate in the reverse direction.

2. The operating mechanism of the isolating switch according to claim 1, characterized in that: A first V-shaped limit platform (10) and a second V-shaped limit platform (11) are provided in the shell; The two sides of the second rotating transmission member about the rotating shaft can successively abut against the two sides of the first V-shaped limit platform (10) during the rotation process, so that the rotation is limited within the cavity; A rotation limit platform is provided on one side of the first rotation transmission member (5), and the rotation limit platform can successively abut against two sides of the second V-shaped limit platform (11) during the rotation process, so that the rotation is limited within the cavity.

3. The operating mechanism of the disconnector according to claim 1, characterized in that: The first rotating transmission member (5) is symmetrically arranged about the rotating shaft, and the second rotating transmission member is provided with a pair of spring assemblies (6), and the spring assemblies (6) are symmetrically arranged about the center of the rotating shaft.

4. The operating mechanism of the disconnector according to claim 1, characterized in that: The first rotating transmission member (5) and the second rotating transmission member are respectively provided in a pair and are symmetrically arranged on both sides of the spring assembly (6).

5. The operating mechanism of the disconnector according to claim 4, characterized in that: The side operating wheel is arranged in parallel with one of the second rotating transmission members, and the rotating shaft passes through a through hole on the second rotating transmission member and is rotationally connected to the side operating wheel (2).

6. The operating mechanism of the disconnector according to claim 1, characterized in that: The first rotating transmission member (5) is provided with a polygonal rotating shaft through hole, and the rotating shaft of the first rotating transmission member (5) is correspondingly in the shape of a polygonal prism.

7. The operating mechanism of the disconnector according to claim 1, characterized in that: The rotating shaft is in the shape of a quadrangular prism or an octagonal prism.

8. The operating mechanism of the disconnector according to claim 1, characterized in that: The output driven member is a coupling member (7), one side of the coupling member (7) is provided with a first circumferential limit shaft (72), and the corresponding second rotating transmission member is provided with a second circumferential limit hole (32) adapted to the first circumferential limit shaft (72). The coupling member (7) is connected to the second rotating transmission member in synchronous rotation via a first circumferential limiting shaft (72) and a second circumferential limiting hole (32).

9. The operating mechanism of the disconnector according to claim 8, characterized in that: The second circumferential limiting hole (32) comprises a circular hole and a plurality of fan-shaped grooves circumferentially arranged on the side of the circular hole.

10. The operating mechanism of the disconnector according to claim 8, characterized in that: The spring assembly (6) comprises a spring bracket (61) with a U-shaped frame at the top and a U-shaped hole at the bottom, a support plate (63) slidably sleeved on the spring bracket (61), a main compression spring (62) with two ends respectively abutting against the bottom of the U-shaped frame and the support plate (63), and a first spring shaft (51) abutting against the end of the U-shaped frame, a second spring shaft (64) abutting against the bottom side of the support plate (63) and slidably embedded in the U-shaped hole; The first spring shaft (51) is connected to the first rotating transmission member (5), and the second spring shaft (64) is connected to the second rotating transmission member.

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