Isolation switch operating mechanism and isolation switch

Abstract

The utility model discloses an isolating switch operating mechanism and an isolating switch, comprising an operating frame, an operating shaft, a motor, a transmission gear assembly and a switching fluted disc, the switching fluted disc is in linkage connection with the transmission gear assembly, the operating shaft is connected with a shaft coupling turntable, the switching fluted disc is provided with at least one toggle column, and the operating shaft is connected with the shaft coupling turntable. The shifting column is located on the side, close to the coupling rotary disc, of the switching fluted disc, a transmission groove is formed in the coupling rotary disc, and the shifting column and the transmission groove are located on the same acting plane. When the shifting column rotates along with the switching fluted disc, the shifting column enters the transmission groove and leaves the transmission groove, and when the shifting column enters the transmission groove and acts on the inner wall of the transmission groove, the shaft coupling rotating disc is driven to rotate so as to achieve electric switching-off and electric switching-on of the operation shaft. A plane meshing structure of the shifting column and the transmission groove is adopted to replace a traditional complex clutch assembly, the number of parts is obviously reduced, the mechanical failure rate is obviously reduced, meanwhile, multi-part transmission accumulative errors are eliminated, and the transmission stability is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical switch technology, specifically to an operating mechanism for a disconnecting switch and a disconnecting switch. Background Technology

[0002] A disconnecting switch is a switchgear used to isolate power sources and disconnect or connect circuits under no-load operation (no current or very low current). Disconnecting switches do not have arc-extinguishing devices, so operation under load is strictly prohibited. After the disconnecting switch is opened, a visible air gap must be formed to ensure the isolation effect.

[0003] With increasing demands for intelligent power distribution and consumption in power grids, electrically operated components have been introduced into disconnecting switches to realize their electric closing and opening functions. To ensure that the electric and manual closing / opening operations of the disconnecting switch do not interfere with each other, a corresponding clutch structure needs to be installed in the operating mechanism of the disconnecting switch, so that manual closing / opening does not affect the operation of the electrically operated components. Currently, the clutch structures in existing disconnecting switch operating mechanisms suffer from drawbacks such as numerous components and unstable transmission.

[0004] In view of this, there is an urgent need to design an operating mechanism for disconnecting switches to address the design flaws of existing disconnecting switches. Summary of the Invention

[0005] To solve the above problems, this utility model provides an operating mechanism for a disconnecting switch and a disconnecting switch.

[0006] In a first aspect, this utility model provides a disconnector switch operating mechanism, including an operating frame, an operating shaft rotatably connected to the operating frame, a motor mounted on the operating frame, and a transmission gear assembly linked to the motor. It also includes a switching gear disc linked to the transmission gear assembly. A shaft-connected turntable, rotating synchronously with the operating shaft, is connected to the operating shaft. The switching gear disc has at least one actuating post located on the side of the switching gear disc closest to the shaft-connected turntable. A transmission groove is formed on the shaft-connected turntable, and the actuating post and the transmission groove are on the same plane of action. During the rotation of the switching gear disc, the actuating post enters and exits the transmission groove. When the actuating post enters the transmission groove and acts on its inner wall, it drives the shaft-connected turntable to rotate, thereby enabling the operating shaft to electrically open and close the switch.

[0007] The present invention is further configured such that the switching gear disc includes a switching shaft, the switching shaft is movably connected to the operating frame, the outer periphery of the switching gear disc is provided with switching external teeth, the switching external teeth mesh with the transmission gear assembly, and the actuating column is located at the outer edge of the switching gear disc.

[0008] The present invention is further configured such that the end of the transmission groove away from the operating shaft is an open groove, and the two sides of the open groove are provided with guide slopes.

[0009] The present invention is further configured such that a limiting post is provided on the operating frame, and an arc-shaped travel groove is provided on the shaft-connected turntable, with the limiting post located within the arc-shaped travel groove.

[0010] The present invention is further configured such that a spring drive is connected to the operating shaft, and a closing spring energy storage component, a opening spring energy storage component, and an opening / closing micro switch are provided on the operating frame. The closing spring energy storage component and the opening spring energy storage component are respectively linked to the spring drive, and the opening / closing micro switch is located on one side of the spring drive to detect the current opening / closing status of the isolating switch.

[0011] This utility model is further configured such that a closing positioning post and a opening positioning post are fixed on the operating frame, the operating shaft passes through the center of the spring drive, the outer periphery of the spring drive is provided with a closing linkage part and an opening linkage part, the closing linkage part and the opening linkage part are respectively provided with a closing connecting post and an opening connecting post, the closing spring energy storage component is connected to the closing positioning post and the closing connecting post respectively, the opening spring energy storage component is connected to the opening positioning post and the opening connecting post respectively, and the opening / closing micro switch forms a linkage with the closing linkage part or the opening linkage part.

[0012] The present invention is further configured such that the closing spring energy storage assembly includes a closing bracket, a closing spring sleeved on the closing bracket, and closing pressure plates located at both ends of the closing spring. The closing bracket is provided with a closing positioning hole and a closing connection hole. The closing positioning post is movably connected in the closing positioning hole, and the closing connection post is connected in the closing connection hole. The two closing pressure plates abut against the closing positioning post and the closing linkage part, respectively.

[0013] The present invention is further configured such that the tripping spring energy storage assembly includes a tripping bracket, a tripping spring sleeved on the tripping bracket, and tripping pressure plates located at both ends of the tripping spring. The tripping bracket is provided with a tripping positioning hole and a tripping connecting hole. The tripping positioning column is movably connected in the tripping positioning hole, and the tripping connecting column is connected in the tripping connecting hole. The two tripping pressure plates abut against the tripping positioning column and the tripping linkage part, respectively.

[0014] The present invention is further configured such that three actuating columns are provided, the actuating columns are evenly distributed on the surface of the switching gear plate, and one end of the operating shaft is provided with a manual rotation hole.

[0015] In a second aspect, a disconnecting switch is provided, including the aforementioned disconnecting switch operating mechanism.

[0016] The working principle of the disconnector switch operating mechanism in this technical solution is as follows:

[0017] When the electric closing is performed, the motor drives the switching gear plate to rotate forward through the transmission gear assembly. During the forward rotation of the switching gear plate, the actuating pin enters the transmission groove and acts on the inner wall of the transmission groove to drive the shaft-connected turntable to rotate in the opposite direction, thereby driving the operating shaft to rotate in the opposite direction to achieve electric closing. After the closing is completed, the switching gear plate continues to rotate forward, causing the actuating pin to leave the transmission groove, without affecting the manual opening of the disconnecting switch.

[0018] When the electric circuit breaker is opened, the motor drives the switching gear plate to rotate in the reverse direction through the transmission gear assembly. During the reverse rotation of the switching gear plate, the actuating pin enters the transmission groove and acts on the inner wall of the transmission groove to drive the shaft-connected turntable to rotate in the forward direction, thereby driving the operating shaft to rotate in the forward direction to achieve electric opening. After the opening is completed, the switching gear plate continues to rotate in the reverse direction, causing the actuating pin to leave the transmission groove, without affecting the manual closing of the disconnecting switch.

[0019] When manually closing the circuit, the operating shaft is rotated in the opposite direction by the external handle. The shaft-connected turntable will not be linked with the switching gear plate during the reverse rotation of the operating shaft, thereby realizing the engagement and disengagement between the manual closing circuit and the motor and transmission gear assembly.

[0020] When manually opening the circuit breaker, the operating shaft is rotated forward by the external handle. The shaft-connected turntable will not be linked with the switching gear plate during the forward rotation of the operating shaft, thus realizing the engagement and disengagement between the motor and the transmission gear assembly when manually opening the circuit breaker.

[0021] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0022] The operating mechanism of this utility model disconnect switch adopts a planar meshing structure of the toggle column and the transmission groove to replace the traditional complex clutch assembly. The number of parts is significantly reduced, and the mechanical failure rate is significantly reduced. At the same time, the cumulative error of multi-part transmission is eliminated, and the transmission stability is effectively improved.

[0023] This utility model's disconnector operating mechanism employs a unique three-stage "entry-action-disengagement" transmission mechanism for electric opening and closing. Specifically, when the motor and transmission gear assembly drive the switching gear disc to rotate, the actuating pin on the switching gear disc needs to enter the transmission groove of the shaft-connected turntable, act on the inner wall of the transmission groove to drive the shaft-connected turntable to rotate, and then disengage from the transmission groove of the shaft-connected turntable. This transmission structure and method ensures that after an electric opening or closing operation is completed, it does not affect the next manual opening or closing operation, offering advantages such as a simplified clutch transmission structure and reliable opening and closing actions. Attached Figure Description

[0024] Figure 1 This is a perspective view of the disconnector switch operating mechanism according to an embodiment of the present utility model.

[0025] Figure 2 This is a front view of the disconnector switch operating mechanism according to an embodiment of the present utility model.

[0026] Figure 3 for Figure 2 Sectional view of AA.

[0027] Figure 4 This is a perspective view of the motor, transmission gear assembly, and switching gear disc of an embodiment of the present utility model.

[0028] Figure 5 This is an exploded view of the operating shaft and spring drive component according to an embodiment of the present invention.

[0029] Figure 6 This is a perspective view of the shaft-connected turntable according to an embodiment of the present utility model.

[0030] Figure 7 This is a schematic diagram of the engagement between the shaft-connected turntable and the switching gear plate in an embodiment of this utility model.

[0031] Figure 8 This is a perspective view of part of the disconnector switch operating mechanism in an embodiment of this utility model.

[0032] Figure 9 This is a front view of the operating mechanism of a partial disconnect switch in an embodiment of this utility model.

[0033] Figure 10 for Figure 9 A cross-sectional view of BB.

[0034] Figure 11 This is an exploded view of the closing spring energy storage component according to an embodiment of this utility model.

[0035] Figure 12 This is an exploded view of the opening spring energy storage component according to an embodiment of this utility model. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] Example 1

[0038] Combined with appendix Figure 1 To be continued Figure 12 This utility model provides a disconnector switch operating mechanism, comprising an operating frame 1, an operating shaft 2 rotatably connected to the operating frame 1, a motor 3 mounted on the operating frame 1, and a transmission gear assembly 4 linked to the motor 3. It also includes a switching gear disc 5, which is linked to the transmission gear assembly 4. A shaft-connected turntable 6, rotating synchronously with the operating shaft 2, is connected to the operating shaft 2. The switching gear disc 5 has at least one actuating post 51 located on the side of the switching gear disc 5 closest to the shaft-connected turntable 6. The shaft-connected turntable 6 has a transmission groove 61, and the actuating post 51 and the transmission groove 61 are on the same working plane. During the rotation of the switching gear disc 5, the actuating post 51 enters and leaves the transmission groove 61. When the actuating post 51 enters the transmission groove 61 and acts on the inner wall of the transmission groove 61, it drives the shaft-connected turntable 6 to rotate, thereby enabling the operating shaft 2 to electrically open and close the switch.

[0039] In this embodiment, the reverse rotation and forward rotation of the operating shaft 2 respectively realize the closing and opening of the disconnecting switch.

[0040] In this embodiment, when the disconnecting switch is in the closed state, it can only be electrically opened; when the disconnecting switch is in the open state, it can only be electrically closed.

[0041] In this embodiment, viewed from the top view of the operating mechanism, as shown in the attached figure... Figure 7 As shown, the outer contours of the switching gear disk 5 and the outer contours of the shaft-connected turntable 6 are two intersecting circles.

[0042] In this embodiment, the transmission gear assembly 4 is a multi-stage transmission gear.

[0043] In this embodiment, the working principle of the disconnector switch operating mechanism is as follows:

[0044] When the electric closing is performed, the motor 3 drives the switching gear 5 to rotate forward through the transmission gear assembly 4. During the forward rotation of the switching gear 5, the actuating pin 51 enters the transmission groove 61 and acts on the inner wall of the transmission groove 61 to drive the shaft-connected turntable 6 to rotate in the opposite direction, thereby driving the operating shaft 2 to rotate in the opposite direction to achieve electric closing. After the closing is completed, the switching gear 5 continues to rotate forward, causing the actuating pin 51 to leave the transmission groove 61, without affecting the manual opening of the disconnecting switch.

[0045] When the electric circuit breaker is opened, the motor 3 drives the switching gear 5 to rotate in the reverse direction through the transmission gear assembly 4. During the reverse rotation of the switching gear 5, the actuating pin 51 enters the transmission groove 61 and acts on the inner wall of the transmission groove 61 to drive the shaft-connected turntable 6 to rotate in the forward direction, thereby driving the operating shaft 2 to rotate in the forward direction to achieve electric circuit breaker opening. After the circuit breaker is opened, the switching gear 5 continues to rotate in the reverse direction, causing the actuating pin 51 to leave the transmission groove 61, without affecting the manual closing of the disconnecting switch.

[0046] When manually closing the circuit, the operating shaft 2 is rotated in the opposite direction by the external handle. The shaft-connected turntable 6 will not be linked with the switching gear plate 5 during the reverse rotation of the operating shaft 2, thereby realizing the engagement and disengagement between the motor 3 and the transmission gear assembly 4 when manually closing the circuit.

[0047] When manually opening the circuit breaker, the operating shaft 2 is rotated forward by the external handle. The shaft-connected turntable 6 will not be linked with the switching gear plate 5 during the forward rotation of the operating shaft 2, thereby realizing the engagement and disengagement between the motor 3 and the transmission gear assembly 4 when manually opening the circuit breaker.

[0048] In this embodiment, the electric opening and closing mechanism of the disconnecting switch adopts a unique three-stage transmission mechanism of "entry-action-disengagement". Specifically, when the motor 3 and transmission gear assembly 4 drive the switching gear disk 5 to rotate, the actuating pin 51 on the switching gear disk 5 needs to enter the transmission groove 61 of the shaft-connected turntable 6 and act on the inner wall of the transmission groove 61 to drive the shaft-connected turntable 6 to rotate, and then disengage from the transmission groove 61 of the shaft-connected turntable 6. This transmission structure and method ensures that after the electric opening or closing operation is completed, it does not affect the next manual opening or closing operation, and has the advantages of a simplified clutch transmission structure and reliable opening and closing action.

[0049] In this embodiment, as shown in the appendix Figure 4 As shown, the switching gear disk 5 includes a switching shaft 52, which is movably connected to the operating frame 1. The outer periphery of the switching gear disk 5 is provided with switching external teeth 53, which mesh with the transmission gear assembly 4. The actuating column 51 is located at the outer edge of the switching gear disk 5.

[0050] In this embodiment, as shown in the appendix Figure 6 As shown, the end of the transmission groove 61 away from the operating shaft is an open groove 62, and the two sides of the open groove 62 are provided with guide slopes 63. The guide slopes 63 enable the actuating column 51 to form a smoother transmission engagement with the shaft-connected turntable 6.

[0051] In this embodiment, as shown in the appendix Figure 1 and attached Figure 3As shown, the operating frame 1 is provided with a limiting post 11, the shaft-connected turntable 6 is provided with an arc-shaped travel groove 4, the limiting post 51 is located in the arc-shaped travel groove 64, and the limiting post 51 restricts the rotation angle of the shaft-connected turntable 6, that is, the opening and closing rotation angle of the disconnecting switch (usually 90°).

[0052] In this embodiment, as shown in the appendix Figure 8 As shown, a spring drive component 7 is connected to the operating shaft 2, and a closing spring energy storage component 8, a opening spring energy storage component 9, and an opening / closing micro switch 10 are provided on the operating frame 1. The closing spring energy storage component 8 and the opening spring energy storage component 9 are respectively linked to the spring drive component 7. The opening / closing micro switch 10 is located on one side of the spring drive component 7 to detect the current opening / closing status of the isolating switch.

[0053] In this embodiment, the motor is electrically controlled to open and close by detecting the current opening and closing status of the isolating switch through the micro switch 10. For example, when the isolating switch switches from the open state to the closed state, the micro switch 10 detects the closed state of the isolating switch and responds by stopping the rotation of the motor. At this time, the limit post 51 disengages from the transmission groove 61.

[0054] In this embodiment, as shown in the appendix Figure 10 As shown, the operating frame 1 is fixed with a closing positioning post 12 and a opening positioning post 13. The operating shaft 2 passes through the center of the spring drive member 7. The outer periphery of the spring drive member 7 is provided with a closing linkage part 71 and an opening linkage part 72. The closing linkage part 71 and the opening linkage part 72 are respectively provided with a closing connecting post 73 and an opening connecting post 74. The closing spring energy storage component 8 is connected to the closing positioning post 12 and the closing connecting post 73 respectively. The opening spring energy storage component 9 is connected to the opening positioning post 13 and the opening connecting post 74 respectively. The opening / closing micro switch 10 forms a linkage with the closing linkage part 71 or the opening linkage part 72.

[0055] In this embodiment, as shown in the appendix Figure 11 As shown, the closing spring energy storage assembly 8 includes a closing bracket 81, a closing spring 82 sleeved on the closing bracket 81, and closing pressure plates 83 located at both ends of the closing spring 82. The closing bracket 81 has a closing positioning hole 84 and a closing connection hole 85. The closing positioning post 12 is movably connected in the closing positioning hole 84, and the closing connection post 73 is connected in the closing connection hole 85. The two closing pressure plates 83 abut against the closing positioning post 12 and the closing linkage part 71, respectively.

[0056] In this embodiment, as shown in the appendix Figure 12As shown, the trip spring energy storage assembly 9 includes a trip bracket 91, a trip spring 92 sleeved on the trip bracket 91, and trip pressure plates 93 located at both ends of the trip spring 92. The trip bracket 91 has a trip positioning hole 94 and a trip connecting hole 95. The trip positioning post 13 is movably connected in the trip positioning hole 94, and the trip connecting post 74 is connected in the trip connecting hole 95. The two trip pressure plates 93 abut against the trip positioning post 13 and the trip linkage part 72, respectively.

[0057] In this embodiment, as shown in the appendix Figure 4 As shown, three actuating pins 51 are provided, and the actuating pins 51 are evenly distributed on the surface of the switching gear plate 5. One end of the operating shaft 2 is provided with a manual rotating hole 21. The rotation angle between adjacent actuating pins 51 is 120°. Setting three actuating pins 51 is the optimal solution because the response speed during electric opening and closing is fast, and it does not affect the manual opening and closing operation of the disconnecting switch.

[0058] In this embodiment, the disconnector operating mechanism uses a planar meshing structure of the actuating column and the transmission groove to replace the traditional complex clutch assembly. This significantly reduces the number of parts and the mechanical failure rate, while eliminating the cumulative error of multi-part transmission and effectively improving transmission stability.

[0059] Example 2

[0060] Combined with appendix Figure 1 To be continued Figure 12 The present invention is a disconnecting switch, including the disconnecting switch operating mechanism described in Embodiment 1.

[0061] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those 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 to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A disconnector switch operating mechanism, comprising an operating frame, an operating shaft rotatably connected to the operating frame, a motor mounted on the operating frame, and a transmission gear assembly linked to the motor, characterized in that, It also includes a switching gear disk, which is linked to the transmission gear assembly. A shaft-connected turntable that rotates synchronously with the operating shaft is connected to the operating shaft. The switching gear disk is provided with at least one actuating post, which is located on the side of the switching gear disk near the shaft-connected turntable. The shaft-connected turntable has a transmission groove, and the actuating post and the transmission groove are on the same plane of action. During the rotation of the switching gear disk, the actuating post enters and leaves the transmission groove. When the actuating post enters the transmission groove and acts on the inner wall of the transmission groove, it drives the shaft-connected turntable to rotate, thereby realizing the electric opening and closing of the operating shaft.

2. The disconnector switch operating mechanism according to claim 1, characterized in that, The switching gear includes a switching shaft, which is movably connected to the operating frame. The outer periphery of the switching gear is provided with switching external teeth, which mesh with the transmission gear assembly. The actuating column is located at the outer edge of the switching gear.

3. The disconnector switch operating mechanism according to claim 1, characterized in that, The end of the transmission groove away from the operating shaft is an open groove, and the two sides of the open groove are provided with guide slopes.

4. The disconnector operating mechanism according to claim 3, characterized in that, The operating frame is equipped with a limiting post, and the shaft-connected turntable is provided with an arc-shaped travel groove, with the limiting post located within the arc-shaped travel groove.

5. The disconnector switch operating mechanism according to claim 1, characterized in that, A spring drive is connected to the operating shaft. The operating frame is equipped with a closing spring energy storage component, a opening spring energy storage component, and a micro switch for opening and closing. The closing spring energy storage component and the opening spring energy storage component are respectively linked to the spring drive. The micro switch for opening and closing is located on one side of the spring drive to detect the current opening and closing status of the isolating switch.

6. The disconnector operating mechanism according to claim 5, characterized in that, The operating frame is fixed with a closing positioning post and a opening positioning post. The operating shaft passes through the center of the spring drive component. The outer periphery of the spring drive component is provided with a closing linkage part and an opening linkage part. The closing linkage part and the opening linkage part are respectively provided with a closing connecting post and an opening connecting post. The closing spring energy storage component is connected to the closing positioning post and the closing connecting post respectively. The opening spring energy storage component is connected to the opening positioning post and the opening connecting post respectively. The opening / closing micro switch is linked with the closing linkage part or the opening linkage part.

7. The disconnector operating mechanism according to claim 6, characterized in that, The closing spring energy storage assembly includes a closing bracket, a closing spring sleeved on the closing bracket, and closing pressure plates located at both ends of the closing spring. The closing bracket has a closing positioning hole and a closing connection hole. The closing positioning post is movably connected in the closing positioning hole, and the closing connection post is connected in the closing connection hole. The two closing pressure plates abut against the closing positioning post and the closing linkage part, respectively.

8. The disconnector operating mechanism according to claim 6, characterized in that, The trip spring energy storage assembly includes a trip support, a trip spring sleeved on the trip support, and trip pressure plates located at both ends of the trip spring. The trip support has a trip positioning hole and a trip connecting hole. The trip positioning post is movably connected in the trip positioning hole, and the trip connecting post is connected in the trip connecting hole. The two trip pressure plates abut against the trip positioning post and the trip linkage part, respectively.

9. A disconnector operating mechanism according to any one of claims 1 to 8, characterized in that, The actuating pins are provided in three parts, which are evenly distributed on the surface of the switching gear plate. One end of the operating shaft is provided with a manual rotation hole.

10. A disconnecting switch, characterized in that, Includes the disconnector operating mechanism as described in any one of claims 1 to 9.

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