Electric operation mechanism of ring main unit

Abstract

The utility model discloses an electric operation mechanism of a ring main unit. The electric operation mechanism comprises a support, a motor, a first gear, a second gear and an intermittent gear, the intermittent gear is connected with an opening and closing mechanism of the ring main unit, and the opening and closing mechanism is driven by the rotation of the intermittent gear to perform opening and closing actions; the intermittent gear comprises a disc body, a meshing tooth section and a toothless section, the meshing tooth section and the toothless section are arranged on the periphery of the disc body, and the meshing tooth section comprises a plurality of evenly-distributed teeth and is meshed with the second gear. The meshing tooth section of the intermittent gear is matched with the toothless section, the meshing tooth section is meshed with the second gear to transmit driving force, and the toothless section is separated from the second gear to realize idling, so that the purpose of avoiding mechanism damage caused by continuous driving after opening and closing actions are completed is achieved; therefore, the technical effect of improving the operation reliability and safety of the electric operation mechanism is achieved, and the technical problem that in the prior art, mechanism damage or large accidents are caused by continuous driving is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ring main unit, in particular to an electric operating mechanism of ring main unit. BACKGROUND

[0002] As one of the widely used devices in the power system, the ring main unit bears the important functions of power distribution, control and protection. The electric operating mechanism (referred to as "electric operating mechanism") as an important accessory of the ring main unit, through the linkage with the opening and closing mechanism of the ring main unit, can realize remote electric opening and closing control to support the centralized and automated management of the power transmission and distribution network. With the rapid development of the power industry, the demand for functionality, safety and intelligence of the electric operating mechanism is increasing, and the design of the electric operating mechanism has gradually become a key research and improvement field.

[0003] The existing electric operating mechanism has some deficiencies in actual application. Since the electric operating mechanism is installed on the opening and closing mechanism, the mechanism is directly connected with the three positions of the ring main unit, and the opening and closing action is realized by driving the opening and closing mechanism through the electric operating mechanism. The movement state of the traditional electric operating mechanism is converted according to the state of the travel switch. If the travel switch fails, it may cause continuous driving and damage the mechanism, and even cause serious accidents.

[0004] This defect significantly affects the operation reliability of the electric operating mechanism and the overall use effect of the ring main unit, and cannot fully meet the demand of the power system for efficient, stable and safe operation of the equipment. Therefore, developing an electric operating mechanism with simple structure, reliable operation and higher intelligence has become an important direction of the industry development. SUMMARY

[0005] The main purpose of the present application is to provide an electric operating mechanism of ring main unit to solve the technical problem of damage to the mechanism or serious accidents caused by continuous driving in the prior art.

[0006] In order to achieve the above purpose, according to one aspect of the present application, an electric operating mechanism of ring main unit is provided.

[0007] According to the electric operating mechanism of ring main unit, the bracket is connected with the ring main unit, the motor is connected to the bracket, the first gear is connected with the output shaft of the motor, the second gear is connected with the bracket and engaged with the first gear, and the intermittent gear is connected with the bracket and engaged with the second gear; the intermittent gear is connected with the opening and closing mechanism of the ring main unit, and the opening and closing action of the opening and closing mechanism is driven by the rotation of the intermittent gear.

[0008] The intermittent gear comprises a disc body, a meshing tooth segment and a toothless segment on the outer periphery of the disc body, and the meshing tooth segment comprises a plurality of uniformly distributed teeth and is engaged with the second gear.

[0009] Further, the support is arranged in a Z shape, comprising a first horizontal plate and a second horizontal plate parallel to each other, and a vertical plate connected between the first horizontal plate and the second horizontal plate.

[0010] Further, a U-shaped first mounting plate is arranged below the second horizontal plate, the motor is mounted on the front side of the first mounting plate, the output shaft of the motor passes through the first mounting plate to connect the first gear, the first gear is on the rear side of the first mounting plate, the intermittent gear shaft is connected to the front side of the second horizontal plate, and the second gear is connected to the support through a second mounting plate and meshes with the first gear and the intermittent gear respectively.

[0011] Further, mounting holes are arranged on the first horizontal plate and the second horizontal plate, for mounting and fixing on the ring main unit.

[0012] Further, the motor is connected with an electric control module, the electric control module comprises a power control unit and an alarm prompting unit, when the motor operates for a long time, the electric control module cuts off the power supply of the motor, and sends an alarm signal through the alarm prompting unit.

[0013] Further, the length of the meshing tooth section matches the opening and closing action stroke of the opening and closing mechanism.

[0014] Further, a connecting hole for connecting with the opening and closing mechanism is arranged on the intermittent gear.

[0015] Further, the length of the toothless section is not less than one pitch of the second gear.

[0016] In the embodiment of the present application, the meshing tooth section of the intermittent gear cooperates with the toothless section, the driving force is transmitted through the meshing tooth section and the second gear, and the toothless section is disengaged from the second gear to realize idling, so that the purpose of avoiding continuous driving to damage the mechanism after the opening and closing action is achieved, thereby realizing the technical effects of improving the operation reliability and safety of the electric operating mechanism, and further solving the technical problems of mechanism damage or large accidents caused by continuous driving in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The illustrations, together with the description, serve to explain the application offered by the present application. In the drawings:

[0018] Fig. 1 is a front view of the electric operating mechanism of the ring main unit according to the embodiment of the present application;

[0019] Fig. 2 is a rear view of the electric operating mechanism of the ring main unit according to the embodiment of the present application;

[0020] Fig. 3is according to the meshing state diagram of the first gear, the second gear, and the intermittent gear in the embodiments of the present application.

[0021] Reference signs

[0022] 1, support; 11, first cross plate; 12, second cross plate; 13, vertical plate; 14, mounting hole; 2, motor; 3, first gear; 4, second gear; 5, intermittent gear; 51, disc body; 52, meshing tooth section; 53, toothless section; 54, connecting hole; 6, first mounting plate; 7, second mounting plate. DETAILED DESCRIPTION

[0023] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked", "sleeved" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] Embodiment 1

[0030] As Figs. 1-3 shown, the present application relates to a kind of ring network cabinet electric operating mechanism, including: support 1, motor 2, first gear 3, second gear 4 and intermittent gear 5.Specifically:

[0031] Support 1 is used to fix electric operating mechanism on ring network cabinet, support 1 is Z type, including the first horizontal plate 11 and the second horizontal plate 12 that are parallel to each other, and the vertical plate 13 connecting both.The first horizontal plate 11 and the second horizontal plate 12 are all provided with mounting hole 14, for being installed and fixed on ring network cabinet by bolt, ensure the stability of structure.

[0032] Motor 2 is installed on the first mounting plate 6 of support 1, the motor 2 is fixedly installed on the front side of the U-shaped first mounting plate 6 below the second horizontal plate 12 by screw, the output shaft of the motor 2 passes through the first mounting plate 6, and is connected with the first gear 3, and the first gear 3 is located at the rear side of the first mounting plate 6;Second gear 4 is connected to second mounting plate 7, and second mounting plate 7 is above first mounting plate 6, and second gear 4 is above first gear 3 and is engaged with it;The intermittent gear 5 is connected to the front side of the second horizontal plate 12 by shaft, and is above second gear 4 and is engaged with it.

[0033] The intermittent gear 5 includes disc body 51, meshing tooth segment 52 and toothless segment 53, wherein the meshing tooth segment 52 is located at the outer periphery of the disc body 51 and is composed of a plurality of uniformly distributed teeth, which is engaged with the second gear 4 for transmitting driving force.The toothless segment 53 is a toothless area on the outer periphery of the disc body 51, and the length of the toothless segment 53 is not less than the pitch of one tooth of the second gear 4, so as to ensure that the intermittent gear 5 is disengaged from the second gear 4 at the toothless segment 53, thereby realizing the idling of the gear.The length of the meshing tooth segment 52 is accurately matched according to the opening and closing stroke of the ring network cabinet opening and closing mechanism, to ensure that the opening and closing actions are completed within the meshing stroke, to avoid insufficient or excessive driving, and to improve the operation accuracy and safety of the mechanism.

[0034] The intermittent gear 5 is connected with the opening and closing mechanism of the ring main unit, and the disc body 51 of the intermittent gear 5 is provided with a connecting hole 54 for connecting the opening and closing mechanism. When the motor 2 is driven, the meshing tooth segment 52 of the intermittent gear 5 is in transmission cooperation with the second gear 4 to drive the opening and closing mechanism to complete the opening and closing action. When the motor 2 continues to run after the opening and closing action is completed due to the failure of the mechanism, the toothless segment 53 of the intermittent gear 5 will be disengaged from the second gear 4, so as to enter the idling state, thereby effectively avoiding the damage of the continuous driving of the motor 2 to the mechanism and reducing the risk of major accidents caused by abnormal conditions.

[0035] Embodiment 2

[0036] In order to improve safety, the embodiment also provides an electric control module. The electric control module includes a power supply control unit and an alarm prompting unit. When the motor 2 works for a long time, the power supply control unit automatically cuts off the power supply of the motor 2, and at the same time, the alarm prompting unit sends an alarm signal to prompt the abnormality of the equipment, so as to facilitate the quick response of the maintenance personnel.

[0037] The working principle of the device is as follows: the output shaft of the motor 2 is connected to the first gear 3, when the motor 2 starts, the motor 2 drives the first gear 3 to rotate, the first gear 3 transmits the rotating force to the second gear 4 through the meshing with the second gear 4, and then drives the intermittent gear 5 to rotate, the meshing tooth segment 52 of the intermittent gear 5 will complete the linkage with the opening and closing mechanism of the ring main unit to realize the opening or closing action of the ring main unit;

[0038] If a failure occurs, for example, when the travel switch fails, the motor 2 continues to rotate, the second gear 4 exceeds the meshing stroke with the meshing tooth segment 52, and then the toothless segment 53 is disengaged from the second gear 4. Since the toothless segment 53 region has no teeth to mesh with the second gear 4, the second gear 4 idles, so the continuous driving of the motor 2 will not continue to be transmitted to the mechanism, thereby avoiding the risk of damage to the mechanism or major accidents caused by long-time work of the motor 2;

[0039] At the same time, when the motor 2 continues to run for more than a set time, the electric control module will automatically cut off the power supply of the motor 2 to prevent overwork, and at the same time, an alarm signal is sent through the alarm prompting unit to remind the operator to check and handle in time.

[0040] From the above description, it can be seen that the application achieves the following technical effects: in the embodiment of the application, the meshing tooth segment 52 of the intermittent gear 5 cooperates with the toothless segment 53, the driving force is transmitted through the meshing of the meshing tooth segment 52 and the second gear 4, and the second gear 4 is disengaged from the toothless segment 53 to achieve idling, thereby achieving the purpose of avoiding continuous driving to cause damage to the mechanism after completing the opening and closing operation, thereby achieving the technical effects of improving the operation reliability and safety of the electric operating mechanism, and further solving the technical problems of mechanism damage or major accidents caused by continuous driving in the prior art.

[0041] The above only describes the preferred embodiments of the application and is not intended to limit the application. Those skilled in the art can make various modifications and changes to the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A ring main unit electrical control mechanism, characterized in that, The utility model relates to a kind of ring main unit control mechanism, including: the support (1) connected with ring main unit, motor (2) connected on the support (1), first gear (3) connected with the output shaft of the motor (2), the second gear (4) of shaft connection on the support (1), and with the second gear (4) meshing intermittent gear (5) of shaft connection on the support (1), and the intermittent gear (5) is connected with the opening and closing mechanism of ring main unit, and the opening and closing mechanism is driven to carry out opening and closing action by the rotation of the intermittent gear (5); The intermittent gear (5) includes: disc body (51), and meshing tooth segment (52) and toothless segment (53) on the outer periphery of the disc body (51), the meshing tooth segment (52) includes several evenly distributed teeth, and is meshed with the second gear (4). The support (1) is arranged in Z type, including: first horizontal plate (11) and second horizontal plate (12) parallel to each other, and longitudinal plate (13) connected between the first horizontal plate (11) and the second horizontal plate (12).

2. The electric operating mechanism of the ring main unit according to claim 1, characterized in that, The second horizontal plate (12) is provided with a U-shaped first mounting plate (6) below, the motor (2) is installed on the front side of the first mounting plate (6), the output shaft of the motor (2) passes through the first mounting plate (6) and connects the first gear (3), and the first gear (3) is on the rear side of the first mounting plate (6);The intermittent gear (5) is shaft-connected to the front side of the second horizontal plate (12);The second gear (4) is connected to the support (1) by second mounting plate (7), and is meshed with the first gear (3) and intermittent gear (5) respectively.

3. The electric operating mechanism of the ring main unit according to claim 2, characterized in that, The first horizontal plate (11) and the second horizontal plate (12) are both provided with mounting holes (14) for mounting and fixing on the ring main unit.

4. The electric operating mechanism of the ring main unit according to claim 2, characterized in that, The motor (2) is connected with an electric control module, the electric control module includes power control unit and alarm prompting unit, when the motor (2) runs for a long time, the electric control module cuts off the power supply of the motor (2), and sends alarm signal through the alarm prompting unit.

5. The electric operating mechanism of the ring main unit according to claim 1, characterized in that, The length of the meshing tooth segment (52) matches the opening and closing action stroke of the opening and closing mechanism.

6. The electric operating mechanism of the ring main unit according to claim 1, characterized in that, The intermittent gear (5) is provided with a connecting hole (54) for connecting with the opening and closing mechanism.

7. The electric operating mechanism of the ring main unit according to claim 1, characterized in that, The length of the toothless segment (53) is not less than the pitch of the second gear (4).

8. The electric operating mechanism of the ring main unit according to claim 1, characterized in that, ​

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