Dual-motor electric operating mechanism
The dual motor electric operating mechanism realizes the closing and grounding linkage of the isolating switch, which solves the problem of unstable and reliable traditional isolating switch structure, improves the operation flexibility and safety, and is suitable for standardized production.
Patent Information
- Application Number
- CN202422299509.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The traditional isolating switch structure is unstable and reliable, the movement is inflexible and accurate, and the linkage operation between closing and grounding cannot be achieved, which poses safety hazards.
A dual motor electric operating mechanism is designed to realize electric operation through the closing drive assembly and the grounding drive assembly. The closing motor and the grounding motor drive the closing and grounding operation shafts respectively, and the closing, opening and grounding functions are realized through the forward and reverse rotation of the motor.
The linkage operation of closing and grounding is realized, which reduces safety risks, improves operation reliability and flexibility, ensures the safety of staff, and is suitable for standardized production.
Smart Images
Figure CN223296719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of closing and opening of isolating switches, in particular to a dual-motor electric operating mechanism. Background Art
[0002] Isolators are a common type of switching device in power transmission systems, widely used in substations and power plants. Their operating principle and structure are relatively simple, but due to their high usage and demanding reliability, they significantly impact the design, construction, and safe operation of substations and power plants. A key characteristic of knife switches is their lack of arc extinguishing capability, allowing them to open and close circuits only when there is no load current. Isolators are used at all voltage levels to change circuit connections or isolate a line or equipment from the power source. They lack current-interrupting capability and can only be operated after disconnecting the line with other equipment. The primary function of an isolator is to establish a reliable insulation gap after opening, isolating the equipment or line requiring maintenance from the power source with a clear disconnection point, ensuring the safety of maintenance personnel and equipment. Isolators are generally categorized as outdoor or indoor types; single-pole or three-pole by number of poles; with or without a grounding switch; and generally classified by their intended use, such as general purpose, rapid disconnection, and transformer neutral point. The structure of traditional disconnectors is not very stable, reliable, or durable, and their movements are not flexible or accurate enough. They are not suitable for large currents and cannot simultaneously achieve the linkage operation of closing and grounding. There are safety hazards in the operation process. Therefore, it is necessary to provide a dual-motor electric operating mechanism to solve the above technical problems. Utility Model Content
[0003] The purpose of the utility model is to provide a dual-motor electric operating mechanism that can realize the linkage operation of closing and grounding without manual operation, reducing the overall safety hazards and ensuring the personal safety of the staff. Its structure is reliable and durable, the movement is flexible and accurate, and the processing and manufacturing can be standardized.
[0004] In order to achieve the above-mentioned objectives, the present invention is implemented through the following technical solutions: a dual-motor electric operating mechanism, including a mechanism front panel; a closing mechanism, a grounding mechanism, a closing drive assembly and a grounding drive assembly are respectively installed on the mechanism front panel; wherein: the closing drive assembly is transmission-connected to the closing mechanism; the closing drive assembly is used to drive the closing mechanism to realize closing and opening operations; the grounding drive assembly is transmission-connected to the grounding mechanism; the grounding drive assembly is used to drive the grounding mechanism to realize grounding operation; the grounding mechanism is respectively linked with the closing drive assembly and the grounding drive assembly through a grounding linkage assembly.
[0005] As a further improvement of the technical solution of the present utility model, the closing drive assembly includes a closing motor and a closing chain; the grounding drive assembly includes a grounding motor and a grounding chain; the closing mechanism includes a closing operating shaft; the grounding mechanism includes a grounding operating shaft; the closing motor is transmission-connected to the closing operating shaft through the closing chain; the grounding motor is transmission-connected to the grounding operating shaft through the grounding chain.
[0006] As a further improvement of the technical solution of the present utility model, the closing motor rotates clockwise, driving the closing operating shaft to rotate synchronously, completing the closing operation of the closing mechanism; the closing motor rotates counterclockwise, driving the closing operating shaft to rotate synchronously, completing the opening operation of the closing mechanism; the grounding motor rotates counterclockwise, driving the grounding operating shaft to rotate synchronously, completing the grounding operation of the grounding mechanism; the grounding motor rotates clockwise, driving the closing operating shaft to rotate synchronously, completing the opening operation of the closing mechanism.
[0007] As a further improvement to the technical solution of the present invention, a first micro switch and a second micro switch are respectively installed on the front panel of the mechanism; the first micro switch is electrically connected to the grounding motor; and the second micro switch is electrically connected to the closing motor.
[0008] As a further improvement of the technical solution of the present invention, the grounding linkage assembly includes a door pin bracket shaft, a guide frame, a grounding baffle, a first return spring, a door pin shaft, a second return spring and a grounding linkage cam; the grounding linkage cam is installed on the main shaft of the grounding mechanism; the door pin shaft is connected to the grounding linkage cam through the second return spring; the door pin bracket shaft can be lifted and lowered on the guide frame through the first return spring; the guide frame is installed on the front plate of the mechanism; the grounding baffle is installed on the top of the door pin bracket shaft; the grounding baffle is connected and separated with the grounding operating shaft through the lifting and lowering movement of the door pin bracket shaft.
[0009] As a further improvement of the technical solution of the present utility model, it also includes an indicator sign; the indicator sign is installed on the main shaft of the grounding mechanism; the indicator sign and the grounding linkage cam move synchronously.
[0010] Beneficial effects of the utility model:
[0011] The utility model is operated in an electric drive mode by providing a closing drive component and a grounding drive component, eliminating the need for manual operation. The closing motor drives the closing operating shaft through the closing chain, and the grounding motor drives the grounding operating shaft through the grounding chain. The closing, opening, and grounding operations of the mechanism are achieved through the forward and reverse rotation of the motor, thereby realizing the closing and opening functions of the disconnector, reducing overall safety hazards, ensuring the personal safety of workers, and improving the effect of electric operation. Workers can remotely control it, which is highly practical. The utility model is reliable, durable, flexible, accurate, and can be processed and manufactured in a standardized manner. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:
[0013] Figure 1 This is a schematic diagram of the overall structure of a dual-motor electric operating mechanism according to an embodiment of the present utility model;
[0014] Figure 2 This is a side structural diagram of a dual-motor electric operating mechanism according to an embodiment of the present utility model.
[0015] In the attached figure: 1-mechanism front panel; 2-closing motor; 3-grounding motor; 4-first micro switch; 5-second micro switch; 6-door pin bracket shaft; 7-guide frame; 8-grounding baffle; 9-door pin shaft; 10-grounding linkage cam; 11-indicator plate. DETAILED DESCRIPTION
[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0017] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0018] In this utility model, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0019] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one such feature. Furthermore, the technical solutions of various embodiments may be combined with each other, but only on the basis that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions contradicts or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0020] The present invention will be described in further detail below with reference to the accompanying drawings.
[0021] like Figure 1 and Figure 2 As shown, a dual-motor electric operating mechanism includes a mechanism front panel 1; a closing mechanism, a grounding mechanism, a closing drive assembly and a grounding drive assembly are respectively installed on the mechanism front panel 1; wherein: the closing drive assembly is transmission-connected with the closing mechanism; the closing drive assembly is used to drive the closing mechanism to realize closing and opening operations; the grounding drive assembly is transmission-connected with the grounding mechanism; the grounding drive assembly is used to drive the grounding mechanism to realize grounding operation; the grounding mechanism is respectively linked with the closing drive assembly and the grounding drive assembly through a grounding linkage assembly.
[0022] Specifically, in this embodiment, the closing drive assembly includes a closing motor 2 and a closing chain; the grounding drive assembly includes a grounding motor 3 and a grounding chain; the closing mechanism includes a closing operating shaft; the grounding mechanism includes a grounding operating shaft; the closing motor 2 is connected to the closing operating shaft via the closing chain; and the grounding motor 3 is connected to the grounding operating shaft via the grounding chain. The utility model is operated in an electric drive manner by setting the closing drive assembly and the grounding drive assembly, eliminating the need for manual operation. The closing motor 2 drives the closing operating shaft via the closing chain, and the grounding motor 3 drives the grounding operating shaft via the grounding chain. The closing, opening, and grounding operations of the mechanism are achieved through the forward and reverse rotation of the motor, thereby realizing the closing and opening functions of the disconnector, reducing overall safety hazards, ensuring the personal safety of staff, and improving the effect of electric operation. Staff can remotely control it, which is highly practical. The utility model is reliable, durable, flexible, accurate, and can be processed and manufactured in a standardized manner.
[0023] Specifically, in this embodiment, the closing motor 2 rotates clockwise, driving the closing operating shaft to rotate synchronously, completing the closing operation of the closing mechanism; the closing motor 2 rotates counterclockwise, driving the closing operating shaft to rotate synchronously, completing the opening operation of the closing mechanism; the grounding motor 3 rotates counterclockwise, driving the grounding operating shaft to rotate synchronously, completing the grounding operation of the grounding mechanism; the grounding motor 3 rotates clockwise, driving the closing operating shaft to rotate synchronously, completing the opening operation of the closing mechanism. It should be noted that by connecting the metal casing of the electrical equipment to the ground, grounding can reduce the human contact voltage and prevent electric shock accidents when the equipment insulation is damaged. Grounding can provide a low-impedance connection between the equipment and the grounding body, reducing the risk of personal electric shock.
[0024] Specifically, in this embodiment, the mechanism front panel 1 is further mounted with a first microswitch 4 and a second microswitch 5. The first microswitch 4 is electrically connected to the grounding motor 3, and the second microswitch 5 is electrically connected to the closing motor 2. It should be noted that inserting the operating handle at any time activates either the first microswitch 4 (M10) or the second microswitch 5 (M11), disconnecting the motor circuit and protecting the operator. Inserting the operating handle disconnects the electric operation (disabling it), thus achieving an electromechanical interlocking function.
[0025] Specifically, in this embodiment, the grounding linkage assembly includes a door pin bracket shaft 6, a guide frame 7, a grounding block 8, a first return spring, a door pin shaft 9, a second return spring and a grounding linkage cam 10; the grounding linkage cam 10 is installed on the main shaft of the grounding mechanism; the door pin shaft 9 is connected to the grounding linkage cam 10 through the second return spring; the door pin bracket shaft 6 can be lifted and lowered on the guide frame 7 through the first return spring; the guide frame 7 is installed on the front plate 1 of the mechanism; the grounding block 8 is installed on the top of the door pin bracket shaft 6; the grounding block 8 is connected and separated with the grounding operating shaft through the lifting and lowering movement of the door pin bracket shaft 6. It should be noted that the grounding block 8, door pin bracket shaft 6, guide frame 7, and door pin shaft 9 are installed at the lower part of the mechanism, and together constitute the lower door interlock part. When the door pin bracket shaft 6 is guided flat, the gravity of the lower door panel is fixed to the lower part; when grounded, the grounding interlock cam installed on the main shaft of the grounding mechanism rotates counterclockwise, and the door pin shaft 9 moves upward under the spring force of the second reset spring, releasing the lock on the lower door panel; the lower door panel is lifted up and pulled outward at the same time to open the lower door panel, and the door pin bracket shaft 6 moves upward under the action of the spring force, so that the grounding block 8 blocks the operating shaft of the grounding mechanism, making the grounding mechanism unable to operate; and the grounding state is maintained.
[0026] Specifically, this embodiment further includes an indicator sign 11, which is mounted on the main shaft of the grounding mechanism and operates synchronously with the grounding linkage cam 10. It should be noted that the provision of the indicator sign 11 allows for intuitive observation of whether the mechanism is grounded, thereby reducing overall safety hazards and ensuring the personal safety of personnel.
[0027] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.
Claims
1. A dual-motor electric operating mechanism, comprising a mechanism front panel; a closing mechanism, a grounding mechanism, a closing drive assembly, and a grounding drive assembly are mounted on the mechanism front panel; characterized in that: The closing drive component is in transmission connection with the closing mechanism; the closing drive component is used to drive the closing mechanism to realize closing and opening operations; the grounding drive component is in transmission connection with the grounding mechanism; the grounding drive component is used to drive the grounding mechanism to realize grounding operation; the grounding mechanism is respectively linked with the closing drive component and the grounding drive component through the grounding linkage component.
2. A dual-motor electric operating mechanism according to claim 1, characterized in that: The closing drive assembly includes a closing motor and a closing chain; the grounding drive assembly includes a grounding motor and a grounding chain; the closing mechanism includes a closing operating shaft; the grounding mechanism includes a grounding operating shaft; the closing motor is connected to the closing operating shaft through the closing chain; the grounding motor is connected to the grounding operating shaft through the grounding chain.
3. The dual-motor electric operating mechanism according to claim 2, characterized in that: The closing motor rotates clockwise, driving the closing operating shaft to rotate synchronously, completing the closing operation of the closing mechanism; the closing motor rotates counterclockwise, driving the closing operating shaft to rotate synchronously, completing the opening operation of the closing mechanism; the grounding motor rotates counterclockwise, driving the grounding operating shaft to rotate synchronously, completing the grounding operation of the grounding mechanism; the grounding motor rotates clockwise, driving the closing operating shaft to rotate synchronously, completing the opening operation of the closing mechanism.
4. The dual-motor electric operating mechanism according to claim 2, characterized in that: A first micro switch and a second micro switch are respectively installed on the front plate of the mechanism; the first micro switch is electrically connected to the grounding motor; and the second micro switch is electrically connected to the closing motor.
5. The dual-motor electric operating mechanism according to claim 3, characterized in that: The grounding linkage assembly includes a door pin bracket shaft, a guide frame, a grounding baffle, a first return spring, a door pin shaft, a second return spring and a grounding linkage cam; the grounding linkage cam is installed on the main shaft of the grounding mechanism; the door pin shaft is connected to the grounding linkage cam through the second return spring; the door pin bracket shaft can be lifted and lowered on the guide frame through the first return spring; the guide frame is installed on the front plate of the mechanism; the grounding baffle is installed on the top of the door pin bracket shaft; the grounding baffle is connected and separated with the grounding operating shaft through the lifting and lowering movement of the door pin bracket shaft.
6. The dual-motor electric operating mechanism according to claim 5, characterized in that: It also includes an indicator plate; the indicator plate is installed on the main shaft of the grounding mechanism; the indicator plate and the grounding linkage cam act synchronously.