Mechanical fault diagnosis device and system for high-voltage switchgear

Abstract

The utility model provides a mechanical fault diagnosis device and system for high-voltage switch equipment. The mechanical fault diagnosis device of the high-voltage switchgear comprises a mechanical characteristic data acquisition part, a data analysis control part connected with the mechanical characteristic data acquisition part, a control power transmission part connected with the mechanical characteristic data acquisition part and the data analysis control part, and a device main body part. The device body part comprises a shell and a triangular supporting frame used for supporting the shell. The mechanical characteristic data acquisition part, the control power transmission part and the data analysis control part are arranged in the shell, and the control power transmission part is connected with the high-voltage switch equipment. Mechanical faults of the high-voltage switchgear can be accurately and efficiently detected, so that safe operation of the high-voltage switchgear in a power grid device and normal and efficient operation of normal inspection and maintenance work are ensured.

Description

Technical Field

[0001] This application belongs to the field of mechanical high-voltage switch technology, and in particular relates to a mechanical fault diagnosis device and system for high-voltage switchgear. Background Technology

[0002] High-voltage switchgear has always been one of the electrical equipment with the largest number of units in operation and stock in power installations. Due to its extremely harsh operating environment, routine maintenance is difficult to implement, resulting in a persistently high failure rate. The traditional inspection and maintenance mechanism, which relies on manual experience for fault monitoring of operating switchgear and performance acceptance and fault analysis of new switchgear before commissioning, can no longer meet the actual operational needs of high-voltage switchgear. Improving the efficiency of acceptance inspection and maintenance of high-voltage switchgear, enhancing the intelligence level of fault diagnosis, and thus improving the operation and maintenance efficiency of the power grid has become an urgent priority. The professional issues of equipment status monitoring, fault early warning, and analysis and judgment that are frequently encountered in the implementation of traditional high-voltage switchgear condition inspection and power outage fault maintenance work will become important technical issues in inspection and maintenance work. Utility Model Content

[0003] The main objective of this utility model embodiment is to provide a mechanical fault diagnosis device and system for high-voltage switchgear, which can accurately and efficiently detect mechanical faults in high-voltage switchgear, thereby ensuring the safe operation of high-voltage switchgear in power grid installations and the normal and efficient conduct of routine inspection and maintenance work.

[0004] In a first aspect, a mechanical fault diagnosis device for high-voltage switchgear is provided, comprising: a mechanical characteristic data acquisition section, a data analysis and control section connected to the mechanical characteristic data acquisition section, a control power transmission section connected to the mechanical characteristic data acquisition section and the data analysis and control section, and a device main body; the device main body includes: a housing and a triangular support frame for supporting the housing; the mechanical characteristic data acquisition section, the control power transmission section, and the data analysis and control section are disposed inside the housing, and the control power transmission section is connected to the high-voltage switchgear.

[0005] In another possible implementation, the control power transmission section includes a universal joint, a planetary reducer, a servo motor, and a servo controller connected in sequence; one end of the universal joint protrudes from the housing and is connected to a high-voltage switchgear.

[0006] In one possible implementation, the planetary reducer is connected to the manual operation port of the operating mechanism of the high-voltage switchgear via the universal joint, and the servo controller is used to control the servo motor to transmit the switching operating force to the operating mechanism of the high-voltage switchgear via the universal joint to perform the switching action.

[0007] In another possible implementation, the mechanical characteristic data acquisition section includes: a disc torque sensor; one end of the disc torque sensor is connected to the manual operation hole of the operating mechanism of the high-voltage switchgear via the universal joint using a standard component, and the other end is fixedly connected to the planetary reducer using a standard component; during the switching operation of the high-voltage switchgear, the disc torque sensor acquires data on changes in operating torque.

[0008] In another possible implementation, the mechanical fault diagnosis device also includes a temperature heat dissipation unit disposed on one side of the planetary reducer.

[0009] In another possible implementation, the data analysis and control section includes: a smart terminal and a tablet computer connected to the smart terminal; the smart terminal is fixedly disposed at the bottom inside the housing and connected to the disc torque sensor and the servo controller, the smart terminal is used to transmit the operating torque change data to the tablet computer, the tablet computer is fixedly disposed at the upper part of the housing, and is used to obtain mechanical fault diagnosis results based on the operating torque change data and display the mechanical fault diagnosis results.

[0010] In another possible implementation, the tablet computer includes a computer body and a touch screen, the touch screen being fixedly embedded in the upper surface of the housing, and the computer body being fixedly disposed on the side of the touch screen facing inwards from the housing.

[0011] In another possible implementation, the smart terminal is also equipped with a power signal interface for connecting to an external power source.

[0012] Secondly, a mechanical fault diagnosis system for high-voltage switchgear is also provided, including high-voltage switchgear and the aforementioned mechanical fault diagnosis device for high-voltage switchgear; the high-voltage switchgear includes: an output operating lever, an operating mechanism, a vertical connecting rod, and a switch transmission part; one end of the output operating lever is connected to the universal joint, the other end of the output operating lever is connected to the operating mechanism, one end of the vertical connecting rod is connected to the operating mechanism, and the other end of the vertical connecting rod is movably connected to the switch transmission part.

[0013] In another possible implementation, the switch transmission part includes: an operating lever, a rotary bearing housing, an inter-electrode lever, a porcelain insulator, a main conductive part, and an inter-phase lever; the other end of the vertical connecting rod is movably connected to one end of the operating lever, the other end of the operating lever is fixedly connected to the rotary bearing housing, the rotary bearing housing is connected to the main conductive part through the porcelain insulator, the rotary bearing housing is also connected to the inter-electrode lever, and the inter-phase lever is connected to the other end of the vertical connecting rod. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below.

[0015] Figure 1 A schematic diagram of the structure of a mechanical fault diagnosis device for high-voltage switchgear provided in one embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the structural composition of the mechanical fault diagnosis device provided in this embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the mechanical fault diagnosis device provided in this embodiment of the utility model;

[0018] Figure 4 A schematic diagram of the mechanical fault diagnosis system for high-voltage switchgear provided by this utility model. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar modules or modules having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting the present invention.

[0020] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, modules, components, and / or groups thereof. It should be understood that when we say a module is “connected” or “coupled” to another module, it can be directly connected or coupled to the other module, or there may be an intermediate module. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any of the modules and all combinations thereof of one or more associated listed items.

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the implementation of this application will be described in further detail below with reference to the accompanying drawings.

[0022] The technical solutions of this application and how they solve the aforementioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0023] like Figure 1 The diagram shown is a structural diagram of a mechanical fault diagnosis device for high-voltage switchgear according to an embodiment of this utility model. Figure 1 As shown, the mechanical fault diagnosis device applied to high-voltage switchgear includes: a mechanical characteristic data acquisition section, a data analysis and control section connected to the mechanical characteristic data acquisition section, a control power transmission section connected to the mechanical characteristic data acquisition section and the data analysis and control section, and a main body of the device; the main body of the device includes: a housing and a triangular support frame for supporting the housing; the mechanical characteristic data acquisition section, the control power transmission section, and the data analysis and control section are disposed inside the housing, and the control power transmission section is connected to the high-voltage switchgear.

[0024] This utility model embodiment transmits the operating force of the switch to the operating mechanism of the high-voltage switchgear by controlling the power transmission section to perform the switching action. The mechanical characteristic data acquisition section collects the operating torque data of the high-voltage switchgear. The data analysis and control section diagnoses whether there is a mechanical fault in the high-voltage switchgear based on the operating torque data. It can accurately and efficiently detect mechanical faults in the high-voltage switchgear, thereby ensuring the safe operation of the high-voltage switchgear in the power grid and the normal and efficient conduct of routine inspection and maintenance. It can solve the technical problems of mechanical fault monitoring, fault early warning, fault analysis, and fault identification frequently encountered in the routine condition inspection and power outage fault maintenance of high-voltage switchgear.

[0025] In this embodiment of the utility model, see Figure 2-3 The power transmission control system comprises a universal joint, a planetary gear reducer, a servo motor, and a servo controller connected in sequence. One end of the universal joint protrudes from the housing and connects to the high-voltage switchgear. The planetary gear reducer connects to the manual operation port of the high-voltage switchgear's operating mechanism via the universal joint. The servo controller controls the servo motor to transmit the switching operating force via the universal joint to the high-voltage switchgear's operating mechanism for switching action. The switching operating force, controlled by the servo controller, is amplified by a multi-turn pulse servo motor through a precision planetary gear reducer, then connected to a disc-type dynamic torque sensor and the universal joint before finally being transmitted to the high-voltage switchgear's operating mechanism.

[0026] The mechanical characteristic data acquisition section includes a disc-type torque sensor. The disc-type torque sensor is housed within the housing. One end of the sensor is connected via a universal joint to the manual operation port of the high-voltage switchgear's operating mechanism using a standard component, while the other end is fixedly connected to the planetary reducer using a standard component. During the switching operation of the high-voltage switchgear, the disc-type torque sensor collects data on changes in operating torque. The control power transmission section outputs the switching operating force to the operating mechanism of the high-voltage switchgear to perform the switching action. All operating torque data during the switching operation is collected by the disc-type torque sensor. This operating torque data includes data indicating whether the planetary reducer is functioning normally or abnormally.

[0027] The data analysis and control section includes: a smart terminal and a tablet computer connected to the smart terminal; the smart terminal is fixedly installed at the bottom inside the housing and connected to a disc torque sensor and a servo controller. The smart terminal is used to transmit the operating torque change data to the tablet computer, which is fixedly installed at the top of the housing and is used to obtain and display the mechanical fault diagnosis results based on the operating torque change data.

[0028] The tablet computer includes a main body and a touchscreen. The touchscreen is fixedly embedded in the upper surface of the casing, while the main body is fixedly located on the side of the touchscreen facing inwards from the casing. The smart terminal also features a power signal interface for connecting to an external power source. Furthermore, the smart terminal includes a signal interface to provide start and stop signals for switching actions.

[0029] Operating torque data is collected by a disc-type dynamic torque sensor and transmitted to a smart terminal. After analysis by the smart terminal, it is transmitted to a tablet PC. The tablet PC and its built-in professional characteristic analysis software then perform data analysis. Simultaneously, it can control the servo motor, adjusting its output angle and speed. The software's diagnostic function window displays the operating torque-switch output angle curve for this operation. The data-curve is automatically compared with conventional software in a professional software database, providing a professional assessment of whether the switch operating torque is normal or faulty, along with a detailed analysis report. This provides switch maintenance personnel with rapid and professional analysis and judgment. The professional characteristic analysis software on the tablet PC can be any existing data processing software. It can obtain the switch output angle from the operating torque data, generate the operating torque-switch output angle curve, and compare it with a standard curve. If the two differ, a mechanical fault is identified in the high-voltage switchgear. The tablet PC only needs to perform these functions; the specific implementation method is not limited.

[0030] In summary, the mechanical fault diagnosis device for high-voltage switchgear of this embodiment comprises a mechanical characteristic data acquisition section, a data analysis and control section connected to the mechanical characteristic data acquisition section, a control power transmission section connected to the mechanical characteristic data acquisition section and the data analysis and control section, and a main body of the device. The main body of the device includes a housing and a triangular support frame for supporting the housing. The mechanical characteristic data acquisition section, the control power transmission section, and the data analysis and control section are disposed inside the housing. The control power transmission section is connected to the high-voltage switchgear, which can accurately and efficiently detect mechanical faults in the high-voltage switchgear, thereby ensuring the safe operation of the high-voltage switchgear in the power grid and the normal and efficient conduct of routine inspection and maintenance work.

[0031] like Figure 4 The diagram shown is a structural diagram of a mechanical fault diagnosis system for high-voltage switchgear according to an embodiment of the present invention. The mechanical fault diagnosis system for high-voltage switchgear includes: high-voltage switchgear and the aforementioned mechanical fault diagnosis device for high-voltage switchgear.

[0032] The high-voltage switchgear includes an output operating lever, an operating mechanism, a vertical connecting rod, and a switch transmission component. One end of the output operating lever is connected to a universal joint in the mechanical fault diagnosis device of the high-voltage switchgear, and the other end is connected to the operating mechanism. One end of the vertical connecting rod is connected to the operating mechanism, and the other end is movably connected to the switch transmission component. The control power transmission part of the mechanical fault diagnosis device outputs the switch operating force to the operating mechanism through the universal joint and the output operating lever. The operating mechanism and the vertical connecting rod then drive the switch transmission component to perform the opening and closing actions.

[0033] The switch transmission part includes: an operating lever, a rotary bearing housing, an inter-pole lever, a porcelain insulator, a main conductive part, and an inter-phase lever; the other end of the vertical connecting rod is movably connected to one end of the operating lever, the other end of the operating lever is fixedly connected to the rotary bearing housing, the rotary bearing housing is connected to the main conductive part through the porcelain insulator, the rotary bearing housing is also connected to the inter-pole lever, and the inter-phase lever is connected to the other end of the vertical connecting rod.

[0034] The above are only some implementations of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A mechanical fault diagnosis device for high-voltage switchgear, characterized in that, The mechanical fault diagnosis device includes: a mechanical characteristic data acquisition section, a data analysis and control section connected to the mechanical characteristic data acquisition section, a control power transmission section connected to the mechanical characteristic data acquisition section and the data analysis and control section, and a main body of the device; the main body of the device includes: a housing and a triangular support frame for supporting the housing; the mechanical characteristic data acquisition section, the control power transmission section, and the data analysis and control section are disposed inside the housing, and the control power transmission section is connected to the high-voltage switchgear.

2. The mechanical fault diagnosis device as described in claim 1, characterized in that, The control power transmission section includes a universal joint, a planetary reducer, a servo motor, and a servo controller connected in sequence; one end of the universal joint protrudes from the housing and is connected to the high-voltage switchgear.

3. The mechanical fault diagnosis device as described in claim 2, characterized in that, The planetary reducer is connected to the manual operation hole of the operating mechanism of the high-voltage switchgear via the universal joint. The servo controller is used to control the servo motor to transmit the switching operation force to the operating mechanism of the high-voltage switchgear via the universal joint to perform the switching action.

4. The mechanical fault diagnosis device as described in claim 2, characterized in that, The mechanical characteristic data acquisition section includes: a disc torque sensor; one end of the disc torque sensor is connected to the manual operation hole of the operating mechanism of the high-voltage switchgear via the universal joint using a standard component, and the other end is fixedly connected to the planetary reducer using a standard component; during the switching operation of the high-voltage switchgear, the disc torque sensor acquires data on changes in operating torque.

5. The mechanical fault diagnosis device as described in claim 4, characterized in that, The mechanical fault diagnosis device also includes a temperature heat dissipation unit, which is located on one side of the planetary reducer.

6. The mechanical fault diagnosis device as described in claim 4, characterized in that, The data analysis and control section includes: a smart terminal and a tablet computer connected to the smart terminal; the smart terminal is fixedly installed at the bottom inside the housing and connected to the disc torque sensor and the servo controller; the smart terminal is used to transmit the operating torque change data to the tablet computer; the tablet computer is fixedly installed at the upper part of the housing and is used to obtain mechanical fault diagnosis results based on the operating torque change data and display the mechanical fault diagnosis results.

7. The mechanical fault diagnosis device as described in claim 6, characterized in that, The tablet computer includes a computer body and a touch screen. The touch screen is fixedly embedded in the upper surface of the housing, and the computer body is fixedly disposed on the side of the touch screen facing the inside of the housing.

8. The mechanical fault diagnosis device as described in claim 6, characterized in that, The smart terminal is also equipped with a power signal interface for connecting to an external power source.

9. A mechanical fault diagnosis system for high-voltage switchgear, characterized in that, The mechanical fault diagnosis system includes: a high-voltage switchgear and a mechanical fault diagnosis device for the high-voltage switchgear as described in any one of claims 1-8; the high-voltage switchgear includes: an output operating lever, an operating mechanism, a vertical connecting rod, and a switch transmission part; one end of the output operating lever is connected to a universal joint in the mechanical fault diagnosis device of the high-voltage switchgear, the other end of the output operating lever is connected to the operating mechanism, one end of the vertical connecting rod is connected to the operating mechanism, and the other end of the vertical connecting rod is movably connected to the switch transmission part.

10. The mechanical fault diagnosis system as described in claim 9, characterized in that, The switch transmission part includes: an operating lever, a rotary bearing seat, an inter-electrode lever, a porcelain insulator, a main conductive part, and an inter-phase lever; the other end of the vertical connecting rod is movably connected to one end of the operating lever, the other end of the operating lever is fixedly connected to the rotary bearing seat, the rotary bearing seat is connected to the main conductive part through the porcelain insulator, the rotary bearing seat is also connected to the inter-electrode lever, and the inter-phase lever is connected to the other end of the vertical connecting rod.

Images