Dual-motor isolating switch operating mechanism

Abstract

The utility model relates to a double-motor disconnecting switch operating mechanism, which comprises a mechanism frame, a main shaft and two groups of operating shaft assemblies, each operating shaft assembly comprises an operating shaft, a rotating plate group, a driving plate, a limiting shaft sleeve and an opening and closing driving plate, and two groups of limiting plate assemblies matched with the two opening and closing driving plates of the two groups of operating shaft assemblies are respectively arranged on the mechanism frame. An energy storage spring assembly is arranged between the rotating plate sets of the two operation shaft assemblies, a main shaft rotating plate matched with the two opening and closing driving plates of the two operation shaft assemblies is arranged on the main shaft, and an isolation roller and a grounding roller matched with the two opening and closing driving plates are arranged on the main shaft rotating plate. The two opening and closing driving plates are respectively provided with a stirring groove used for stirring the isolation roller and the grounding roller, the mechanism frame is respectively provided with two gear box motors used for driving the two groups of operation shaft assemblies to execute opening and closing actions, and the interlocking mechanism has the advantages of simple structure, stable and reliable performance, reliable interlocking, fast opening and closing speed and convenient installation.

Description

Technical Field

[0001] The utility model relates to an isolating switch, in particular to an operating mechanism of a dual-motor isolating switch. Background Art

[0002] At present, many large-scale power consumption sites have been using ring network cabinets on a large scale; the ring network cabinet has a simple structure, safe and reliable operation, low maintenance frequency and low operating costs. Compared with traditional switch cabinets, the advantages are very prominent. In the technology of ring network cabinets, isolating switches are widely used. As a circuit switch in the ring network cabinet, the isolating switch not only plays the role of an ordinary switch, but also ensures the reliable grounding of the safety break and the lower end of the isolation, which absolutely guarantees the safety of circuit maintenance and repair personnel. It is one of the very important components in the ring network cabinet. The existing dual-motor isolating switch operating mechanism has a complex structural design, many parts, high cost, high mechanical failure rate, and easily leads to unreliable interlocking between the two sets of operating components (isolation operation, grounding operation). In addition, the isolating switch operating mechanism also has the defects of complex structure, slow opening and closing speed, and inconvenient installation. Summary of the invention

[0003] The utility model aims to overcome the defects of the prior art and provide an isolating switch operating mechanism with simple structure, stable and reliable performance, reliable interlocking, fast opening and closing speed and convenient installation.

[0004] To achieve the above-mentioned purpose, the utility model adopts a dual-motor isolating switch operating mechanism, including a mechanism frame, a main shaft rotatably arranged on the mechanism frame, and two groups of operating shaft assemblies respectively arranged on the mechanism frame at both sides of the corresponding main shaft, the operating shaft assembly includes an operating shaft rotatably arranged on the mechanism frame, a rotating plate assembly arranged on the operating shaft, a driving plate linked to the operating shaft and used to drive the rotating plate assembly to move, a limiting shaft sleeve arranged on the operating shaft, and a separation and combination driving plate linked to the limiting shaft sleeve, two groups of limiting plate assemblies matched with two separation and combination driving plates of the two groups of operating shaft assemblies are respectively arranged on the mechanism frame, an energy storage spring assembly is arranged between the rotating plate assemblies of the two groups of operating shaft assemblies, and a A main shaft rotating plate matched with two separation and combination driving plates of two groups of operating shaft assemblies, the main shaft rotating plate is respectively provided with isolation rollers and grounding rollers matched with the two separation and combination driving plates, the two separation and combination driving plates are respectively provided with toggle grooves for toggling the isolation rollers and grounding rollers, the mechanism frame is respectively provided with two gear box motors for driving the two groups of operating shaft assemblies to perform separation and combination actions, one end of the output shaft of the gear box motor has a clamping groove matched with the operating shaft, the other end of the output shaft has a manual operating shaft exposed outside the gear box motor, the operating shaft is provided with a clamping block matched with the clamping groove, the clamping block is clamped in the clamping groove, and constitutes a linkage match between the operating shaft and the output shaft.

[0005] The beneficial effects of the above structure are: the two gearbox motors can respectively drive the two groups of operating shaft assemblies to perform the opening and closing actions, thereby realizing the electric operation function of the disconnector operating mechanism, and the output shaft of the gearbox motor is engaged with the operating shaft of the operating shaft assembly, so as to facilitate the assembly of the two gearbox motors and the two groups of operating shaft assemblies, and the assembly efficiency is higher. The main shaft rotating plate cooperates with the two opening and closing drive plates of the two groups of operating shaft assemblies through the isolation roller and the grounding roller, respectively, so as to realize the interlocking of the two groups of operating shaft assemblies (isolation operation, grounding operation), and can avoid the two groups of operating shaft assemblies from performing the closing action (isolation, grounding) at the same time. The structural design is simple and the interlocking is more reliable. An energy storage spring assembly is arranged between the two groups of rotating plate groups of the two groups of operating shaft assemblies, and the energy storage spring assembly can accelerate the opening and closing speed of the operating shaft assembly, and the opening and closing speed is faster. Therefore, the disconnector operating mechanism has the advantages of simple structure, stable and reliable performance, reliable interlocking, and fast opening and closing speed.

[0006] In particular, one end of the main shaft has an indicator plate exposed outside the mechanism frame, the indicator plate is provided with an isolation indicator mark and a grounding indicator mark, and the indicator plate has a shielding portion that matches the manual operating shafts of the two operating shaft assemblies. The indicator plate can play an indicating role, and the user can intuitively know the working state of the isolating switch operating mechanism, which is conducive to improving the safety of the isolating switch operating mechanism.

[0007] In particular, the limit plate assembly includes a switch-off limit plate rotatably arranged on the mechanism frame at one side of the corresponding operating shaft, a first torsion spring arranged between the switch-off limit plate and the mechanism frame, a switch-closing limit plate rotatably arranged on the mechanism frame at the other side of the corresponding operating shaft, and a second torsion spring arranged between the switch-closing limit plate and the mechanism frame. The limit sleeve is provided with a limit groove that matches with the switch-off limit plate and one end of the switch-closing limit plate. The switch-off limit plate is provided with a limit roller that matches with the main shaft rotating plate. The other end of the limit plate is provided with a limit roller that cooperates with the main shaft rotating plate, and the main shaft rotating plate is provided with a locking groove that cooperates with the limit roller. When the main shaft rotating plate is rotated to the opening position, the limit roller is engaged in the locking groove, and constitutes the limiting cooperation between the main shaft rotating plate and the limit roller. The other end of the closing limit plate is vertically bent and formed with a limiting portion. When the main shaft rotating plate is rotated to the closing position, the limit portion is engaged in the locking groove, and constitutes the limiting cooperation between the main shaft rotating plate and the closing limit plate. When the operating shaft rotates to the opening position, one end of the opening limit plate is engaged in the limit groove, and the limit roller at the other end of the opening limit plate is engaged in the locking groove. The opening limit plate can limit the main shaft rotating plate to the opening position, thereby realizing the opening locking of the isolating switch operating mechanism; when the operating shaft rotates to the closing position, one end of the closing limit plate is engaged in the limit groove, and the limit part at the other end of the closing limit plate is engaged in the locking groove. The closing limit plate can limit the main shaft rotating plate to the closing position, thereby realizing the closing locking of the isolating switch operating mechanism; the limit plate assembly can ensure that the main shaft rotating plate can reliably perform the opening and closing actions, can avoid bouncing, and is beneficial to improving the working reliability of the isolating switch operating mechanism.

[0008] In particular, the energy storage spring assembly includes a guide shaft, a positioning shaft, and an energy storage spring sleeved on the guide shaft. The guide shaft is interlockedly arranged on the rotating plate assembly of one set of operating shaft assemblies, and the positioning shaft is interlockedly arranged on the rotating plate assembly of the other set of operating shaft assemblies. A guide hole is arranged on the positioning shaft, and one end of the guide shaft is inserted into the guide hole. The two ends of the energy storage spring are respectively in contact with the guide shaft and the positioning shaft. The energy storage spring assembly adopts a modular structural design, so as to facilitate the assembly of the energy storage spring assembly and the two sets of rotating plate assemblies, and the assembly efficiency is higher. The energy storage spring assembly can accelerate the opening and closing of the switch, which is conducive to accelerating the opening and closing speed of the disconnector operating mechanism.

[0009] Specifically, the mechanism frame includes a front plate, a rear plate, and a mounting base plate. A plurality of support columns are respectively arranged between one side of the rear plate and the front plate, and a plurality of struts are respectively arranged between the other side of the rear plate and the mounting base plate. The two groups of limit plate assemblies are respectively arranged on one side of the rear plate, and a relief hole is arranged on the mounting base plate corresponding to the main shaft. A plurality of fixed shafts are respectively arranged between the gearbox motor and the front plate. The mounting base plate is arranged on the mechanism frame, facilitating the installation of the disconnector operating mechanism, making the installation more convenient. The plurality of support columns and struts can enhance the overall strength of the mechanism frame, which is beneficial to improving the working reliability of the disconnector.

[0010] Specifically, a limit shaft assembly cooperating with the main shaft rotating plate is arranged on the rear plate. The limit shaft assembly includes a limit plate and three limit shafts arranged in a "pin" shape between the limit plate and the rear plate. A positioning groove cooperating with the limit shaft is arranged on the main shaft rotating plate. The limit shaft assembly plays a role in limiting the main shaft rotating plate, thus ensuring that the main shaft rotating plate can reliably perform the opening and closing actions. Moreover, three limit shafts are connected between the limit plate and the rear plate in a "pin" shape distribution, ensuring a more compact connection between the limit shaft assembly and the rear plate, which is beneficial to improving the working reliability of the disconnector operating mechanism. Description of the Drawings

[0011] Figure 1 Is a perspective view of an embodiment of the present invention.

[0012] Figure 2 Is an exploded view of an embodiment of the present invention.

[0013] Figure 3 Is a diagram of the opening-locked state of an embodiment of the present invention.

[0014] Figure 4 Is a diagram of the closing-locked state of an embodiment of the present invention.

[0015] Figure 5 Is an assembly drawing of two groups of operating shaft assemblies of an embodiment of the present invention.

[0016] Figure 6 Is an assembly drawing of the main shaft rotating plate and two opening / closing driving plates of an embodiment of the present invention. Detailed Description of the Invention

[0017] As Figures 1 to 6As shown, the embodiment of the utility model is a dual-motor isolating switch operating mechanism, including a mechanism frame 10, a main shaft 11 rotatably arranged on the mechanism frame 10, and two groups of operating shaft assemblies 20 respectively arranged on the mechanism frame 10 at both sides of the corresponding main shaft 11. The operating shaft assembly 20 includes an operating shaft 21 rotatably arranged on the mechanism frame 10, a rotating plate group 22 arranged on the operating shaft 21, a driving plate 23 linked to the operating shaft 21 and used to drive the rotating plate group 22 to move, a limiting shaft sleeve 24 arranged on the operating shaft 21, and a separation and combination driving plate 25 linked to the limiting shaft sleeve 24. Two groups of limiting plate assemblies 30 matched with the two separation and combination driving plates 25 of the two groups of operating shaft assemblies 20 are respectively arranged on the mechanism frame 10, an energy storage spring assembly 40 is arranged between the rotating plate groups 22 of the two groups of operating shaft assemblies 20, and the main shaft 11 is provided with a spring assembly 40 that matches the two groups of operating shaft assemblies 20. A main shaft rotating plate 12 matched with two separation and combination driving plates 25, the main shaft rotating plate 12 is respectively provided with an isolation roller 121 and a grounding roller 122 matched with the two separation and combination driving plates 25, the two separation and combination driving plates 25 are respectively provided with a toggle groove 251 for toggling the isolation roller 121 and the grounding roller 122, the mechanism frame 10 is respectively provided with two gear box motors 13 for driving two groups of operating shaft assemblies 20 to perform separation and combination actions, one end of the output shaft 131 of the gear box motor 13 has a clamping groove 132 matched with the operating shaft 21, the other end of the output shaft 131 has a manual operating shaft 133 exposed outside the gear box motor 13, the operating shaft 21 is provided with a clamping block 211 matched with the clamping groove 132, the clamping block 211 is clamped in the clamping groove 132, and constitutes a linkage match between the operating shaft 21 and the output shaft 131. The main shaft 11 has an indicator plate 14 exposed outside the mechanism frame 10 at one end, and the indicator plate 14 is provided with an isolation indicator mark 141 and a grounding indicator mark 142, respectively. The indicator plate 14 has a shielding portion 143 that matches the manual operating shaft 133 of the two sets of operating shaft assemblies 20. The indicator plate can play an indicating role, and the user can intuitively know the working state of the isolating switch operating mechanism, which is conducive to improving the safety of the isolating switch operating mechanism.

[0018] like Figure 2 , 34, the limit plate assembly 30 includes an opening limit plate 31 rotatably arranged on the mechanism frame 10 at one side of the corresponding operating shaft 21, a first torsion spring 32 arranged between the opening limit plate 31 and the mechanism frame 10, a closing limit plate 33 rotatably arranged on the mechanism frame 10 at the other side of the corresponding operating shaft 21, and a second torsion spring 34 arranged between the closing limit plate 33 and the mechanism frame 10. The limit sleeve 24 is provided with a limit groove 241 that matches one end of the opening limit plate 31 and the closing limit plate 33. The other end of the opening limit plate 31 is provided with a limit groove 241 that matches with the main shaft rotating plate 12, the spindle rotating plate 12 is provided with a locking groove 123 which cooperates with the limiting roller 311. When the spindle rotating plate is rotated to the opening position, the limiting roller 311 is engaged in the locking groove 123, and constitutes the limiting cooperation between the spindle rotating plate 12 and the limiting roller 311. The other end of the closing limiting plate 33 is vertically bent and forms a limiting portion 331. When the spindle rotating plate is rotated to the closing position, the limiting portion 331 is engaged in the locking groove 123, and constitutes the limiting cooperation between the spindle rotating plate 12 and the closing limiting plate 33. When the operating shaft rotates to the opening position, one end of the opening limit plate is engaged in the limit groove, and the limit roller at the other end of the opening limit plate is engaged in the locking groove. The opening limit plate can limit the main shaft rotating plate to the opening position, thereby realizing the opening locking of the isolating switch operating mechanism; when the operating shaft rotates to the closing position, one end of the closing limit plate is engaged in the limit groove, and the limit part at the other end of the closing limit plate is engaged in the locking groove. The closing limit plate can limit the main shaft rotating plate to the closing position, thereby realizing the closing locking of the isolating switch operating mechanism; the limit plate assembly can ensure that the main shaft rotating plate can reliably perform the opening and closing actions, can avoid bouncing, and is beneficial to improving the working reliability of the isolating switch operating mechanism.

[0019] like Figure 2 and 5As shown, the energy storage spring assembly 40 includes a guide shaft 41, a positioning shaft 42, and an energy storage spring 43 sleeved on the guide shaft 41. The guide shaft 41 is联动设置 (linked and arranged) on the rotating plate group 22 of one set of operating shaft assemblies 20, the positioning shaft 42 is联动设置 (linked and arranged) on the rotating plate group 22 of the other set of operating shaft assemblies 20. A guide hole 421 is provided on the positioning shaft 42, and one end of the guide shaft 41 is inserted into the guide hole 421. Both ends of the energy storage spring 43 abut against the guide shaft 41 and the positioning shaft 42 respectively. The energy storage spring assembly adopts a modular structure design, which facilitates the assembly of the energy storage spring assembly with the two sets of rotating plate groups, has higher assembly efficiency, and the energy storage spring assembly can play the role of accelerating opening and closing, which is beneficial to accelerating the opening and closing speed of the disconnector operating mechanism. The mechanism frame 10 includes a front plate 101, a rear plate 102, and a mounting bottom plate 103. A plurality of support columns 104 are respectively provided between one side of the rear plate 102 and the front plate 101, and a plurality of support columns 105 are respectively provided between the other side of the rear plate 102 and the mounting bottom plate 103. The two sets of limit plate assemblies 30 are respectively provided on one side of the rear plate 102, and a relief hole 1031 is provided on the mounting bottom plate 103 corresponding to the main shaft 11. A plurality of fixed shafts 106 are respectively provided between the gearbox motor 13 and the front plate 101. The mechanism frame is provided with a mounting bottom plate, which facilitates the installation of the disconnector operating mechanism, and the installation is more convenient. The plurality of support columns and the plurality of support columns can enhance the overall strength of the mechanism frame, which is beneficial to improving the working reliability of the disconnector.

[0020] As Figure 2 , 3 , as shown in Figure 4, a limit shaft assembly 50 is provided on the rear plate 102 and is matched with the main shaft rotating plate 12. The limit shaft assembly 50 includes a limit plate 51 and three limit shafts 52 arranged in a "pin" shape between the limit plate 51 and the rear plate 102. A positioning groove 124 is provided on the main shaft rotating plate 12 and is matched with the limit shaft 52. The limit shaft assembly plays a limiting role on the main shaft rotating plate, so as to ensure that the main shaft rotating plate can reliably perform opening and closing actions. Moreover, three limit shafts distributed in a "pin" shape are connected between the limit plate and the rear plate, so as to ensure that the connection between the limit shaft assembly and the rear plate is more compact, which is beneficial to improving the working reliability of the disconnector operating mechanism.

[0021] The two gearbox motors can respectively drive the two groups of operating shaft assemblies to perform the opening and closing actions, thereby realizing the electric operation function of the disconnector operating mechanism. The output shaft of the gearbox motor is engaged with the operating shaft of the operating shaft assembly, which facilitates the assembly of the two gearbox motors and the two groups of operating shaft assemblies, and the assembly efficiency is higher. The main shaft rotating plate cooperates with the two opening and closing drive plates of the two groups of operating shaft assemblies through the isolation roller and the grounding roller, respectively, so as to realize the interlocking of the two groups of operating shaft assemblies (isolation operation, grounding operation), and can avoid the two groups of operating shaft assemblies from performing the closing action (isolation, grounding) at the same time. The structural design is simple and the interlocking is more reliable. An energy storage spring assembly is arranged between the two groups of rotating plate groups of the two groups of operating shaft assemblies, and the energy storage spring assembly can accelerate the opening and closing speed of the operating shaft assembly, and the opening and closing speed is faster. Therefore, the disconnector operating mechanism has the advantages of simple structure, stable and reliable performance, reliable interlocking, and fast opening and closing speed.

Claims

1. A dual-motor isolating switch operating mechanism, characterized in that: The invention comprises a mechanism frame, a main shaft rotatably arranged on the mechanism frame, and two groups of operating shaft assemblies respectively arranged on the mechanism frame at both sides of the corresponding main shaft, wherein the operating shaft assembly comprises an operating shaft rotatably arranged on the mechanism frame, a rotating plate assembly arranged on the operating shaft, a driving plate linked to the operating shaft and used to drive the rotating plate assembly to move, a limiting shaft sleeve arranged on the operating shaft, and a separation and combination driving plate linked to the limiting shaft sleeve, two groups of limiting plate assemblies matched with two separation and combination driving plates of the two groups of operating shaft assemblies are respectively arranged on the mechanism frame, an energy storage spring assembly is arranged between the rotating plate assemblies of the two groups of operating shaft assemblies, and the main shaft is provided with two separation and combination driving assemblies matched with the two groups of operating shaft assemblies. The main shaft rotating plate cooperates with the plate, and the main shaft rotating plate is respectively provided with isolation rollers and grounding rollers that cooperate with the two separation and combination driving plates, and the two separation and combination driving plates are respectively provided with toggle grooves for toggling the isolation rollers and the grounding rollers. The mechanism frame is respectively provided with two gear box motors for driving two groups of operating shaft components to perform separation and closing actions, one end of the output shaft of the gear box motor has a clamping groove that cooperates with the operating shaft, and the other end of the output shaft has a manual operating shaft exposed outside the gear box motor, and the operating shaft is provided with a clamping block that cooperates with the clamping groove, and the clamping block is clamped in the clamping groove to constitute a linkage cooperation between the operating shaft and the output shaft.

2. The dual-motor isolating switch operating mechanism according to claim 1, characterized in that: One end of the main shaft is provided with an indicator plate exposed outside the mechanism frame, the indicator plate is respectively provided with an isolation indicator mark and a grounding indicator mark, and the indicator plate has a shielding part matched with the manual operating shafts of the two operating shaft assemblies.

3. The dual-motor isolating switch operating mechanism according to claim 1 or 2, characterized in that: The limit plate assembly includes an opening limit plate rotatably arranged on the mechanism frame at one side of the corresponding operating shaft, a first torsion spring arranged between the opening limit plate and the mechanism frame, a closing limit plate rotatably arranged on the mechanism frame at the other side of the corresponding operating shaft, and a second torsion spring arranged between the closing limit plate and the mechanism frame. The limit shaft sleeve is provided with a limit groove matching with the opening limit plate and one end of the closing limit plate. The other end of the opening limit plate is provided with a limit roller matching with the main shaft rotating plate. The main shaft rotating plate is provided with a locking groove matching with the limit roller. When the main shaft rotating plate is rotated to the opening position, the limit roller is engaged in the locking groove and constitutes a limiting cooperation between the main shaft rotating plate and the limit roller. The other end of the closing limit plate is vertically bent to form a limiting portion. When the main shaft rotating plate is rotated to the closing position, the limiting portion is engaged in the locking groove and constitutes a limiting cooperation between the main shaft rotating plate and the closing limit plate.

4. The dual-motor isolating switch operating mechanism according to claim 1 or 2, characterized in that: The energy storage spring assembly includes a guide shaft, a positioning shaft, and an energy storage spring sleeved on the guide shaft. The guide shaft is linked to be arranged on a rotating plate assembly of one group of operating shaft assemblies, and the positioning shaft is linked to be arranged on a rotating plate assembly of another group of operating shaft assemblies. A guide hole is arranged on the positioning shaft, and one end of the guide shaft is inserted into the guide hole. The two ends of the energy storage spring respectively abut against the guide shaft and the positioning shaft.

5. The dual-motor isolating switch operating mechanism according to claim 1 or 2, characterized in that: The described mechanism frame includes a front plate, a rear plate, and a mounting bottom plate. A plurality of support columns are respectively arranged between one side of the rear plate and the front plate, and a plurality of struts are respectively arranged between the other side of the rear plate and the mounting bottom plate. The two groups of limit plate assemblies are respectively arranged on one side of the rear plate, and a relief hole is arranged on the mounting bottom plate corresponding to the main shaft. A plurality of fixed shafts are respectively arranged between the gearbox motor and the front plate.

6. The dual-motor isolating switch operating mechanism according to claim 5, characterized in that: A limit shaft assembly that cooperates with the main shaft rotating plate is arranged on the rear plate. The limit shaft assembly includes a limit plate and three limit shafts arranged in a "pin" shape between the limit plate and the rear plate. A positioning groove that cooperates with the limit shaft is arranged on the main shaft rotating plate.

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