Mechanical fault diagnosis device and system for high-voltage switchgear

Abstract

The invention 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] The present application belongs to the technical field of mechanical high-voltage switches, and in particular, relates to a mechanical fault diagnosis device and system for high-voltage switch equipment. Background Art

[0002] High-voltage switchgear has always been one of the electrical equipment with the largest operating volume and the largest number of units in power installations. Due to its extremely harsh operating environment, it is difficult to carry out regular inspection and maintenance, so the failure rate has remained high. The traditional inspection, acceptance and operation and maintenance mechanism that relies on manual experience to monitor the faults of operating switchgear and the performance acceptance of new switchgear before commissioning, and equipment fault analysis and judgment can no longer meet the actual operation needs of high-voltage switchgear. How to improve the efficiency of acceptance, inspection and maintenance of high-voltage switchgear, improve the intelligent level of fault diagnosis of switchgear, and thus improve the operation and maintenance efficiency of the power grid has become an urgent and primary task. The implementation of the traditional status inspection and power outage fault maintenance and repair of high-voltage switchgear often encounters professional problems such as equipment status monitoring, fault warning, analysis and judgment, which will become important technical issues in inspection and operation and maintenance work. Summary of the invention

[0003] The main purpose of the embodiments of the present invention is to provide a mechanical fault diagnosis device and system for high-voltage switchgear, which can accurately and efficiently detect mechanical faults of high-voltage switchgear, thereby ensuring the safe operation of the high-voltage switchgear in the power grid device and the normal and efficient implementation of routine inspection and maintenance work.

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

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

[0006] In a possible implementation, the planetary reducer is connected to the manual operation hole of the operating mechanism of the high-voltage switch device through the universal shaft, 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 switch device through the universal shaft to perform a switching action.

[0007] In another possible implementation, the mechanical characteristic data acquisition part 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 switch device through the universal shaft using standard parts, and the other end is fixedly connected to the planetary reducer using standard parts; during the switching action of the high-voltage switch device, the disc torque sensor collects operating torque change data.

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

[0009] In another possible implementation, the data analysis and control part includes: a smart terminal and a tablet computer connected to the smart terminal; the smart terminal is fixedly arranged at the bottom of the shell 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, and the tablet computer is fixedly arranged on the upper part of the shell, 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, wherein the touch screen is fixedly embedded in the upper surface of the shell, and the computer body is fixedly arranged on a side of the touch screen facing the inside of the shell.

[0011] In another possible implementation, a power signal interface is further provided on the smart terminal for connecting to an external power source.

[0012] In the second aspect, a mechanical fault diagnosis system for a high-voltage switchgear is also provided, comprising a high-voltage switchgear and a mechanical fault diagnosis device for the aforementioned high-voltage switchgear; the high-voltage switchgear comprises: an output operating rod, an operating mechanism, a vertical connecting rod and a switch transmission part; one end of the output operating rod is connected to the universal joint, the other end of the output operating rod 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 rod, a rotating bearing seat, an interpole rod, a porcelain bottle, a main conductive part and an interphase rod; the other end of the vertical connecting rod is movably connected to one end of the operating rod, and the other end of the operating rod is fixedly connected to the rotating bearing seat, and the rotating bearing seat is connected to the main conductive part through the porcelain bottle, and the rotating bearing seat is also connected to the interpole rod, and the interphase rod is connected to the other end of the vertical connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in describing the embodiments of the present application are briefly introduced below.

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

[0016] Figure 2 A schematic diagram of the structure of a mechanical fault diagnosis device provided by an embodiment of the present invention;

[0017] Figure 3 A schematic diagram of the principle of a mechanical fault diagnosis device provided by an embodiment of the present invention;

[0018] Figure 4 A schematic structural diagram of a mechanical fault diagnosis system for high-voltage switchgear provided by the present invention.

[0019] Specific implementation method

[0020] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar modules or modules with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be interpreted as limiting the present invention.

[0021] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the 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 refer to a module as being "connected" or "coupled" to another module, it may be directly connected or coupled to the other modules, or there may be intermediate modules. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any modules and all combinations of one or more associated listed items.

[0022] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation method of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0023] The technical solution of the present application and how to solve the above-mentioned technical problems are described in detail below with specific embodiments. The following 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 the present application will be described below in conjunction with the accompanying drawings.

[0024] like Figure 1 FIG. 1 is a structural diagram of a mechanical fault diagnosis device for a high-voltage switchgear provided by an embodiment of the present invention. Figure 1 As shown, the mechanical fault diagnosis device applied to high-voltage switchgear includes: a mechanical characteristic data acquisition part, a data analysis control part connected to the mechanical characteristic data acquisition part, a control power transmission part connected to the mechanical characteristic data acquisition part and the data analysis control part, and a device main body; the device main body includes: a shell, a triangular support frame for supporting the shell; the mechanical characteristic data acquisition part, the control power transmission part, and the data analysis control part are arranged inside the shell, and the control power transmission part is connected to the high-voltage switchgear.

[0025] The embodiment of the present invention controls the power transmission part to transmit the switch operating force to the operating mechanism of the high-voltage switch device to perform the switching action, the mechanical characteristic data acquisition part acquires the operating torque data of the high-voltage switch device, and the data analysis and control part diagnoses whether there is a mechanical fault in the high-voltage switch device according to the operating torque data. It can accurately and efficiently detect the mechanical fault of the high-voltage switch device, thereby ensuring the safe operation of the high-voltage switch device in the power grid device and the normal and efficient implementation of the routine inspection and maintenance work, and can solve the technical problems of mechanical fault monitoring, fault warning, fault analysis, fault identification and the like that are often encountered in improving the routine status inspection and power outage maintenance and repair of high-voltage switch equipment.

[0026] In the embodiments of the present invention, see Figure 2-3 The control power transmission part includes a universal shaft, a planetary reducer, a servo motor and a servo controller connected in sequence. One end of the universal shaft protrudes from the housing and is connected to the high-voltage switchgear. The planetary reducer is connected to the manual operation hole of the operating mechanism of the high-voltage switchgear through the universal shaft. The servo controller is used to control the servo motor to transmit the switch operating force to the operating mechanism of the high-voltage switchgear through the universal shaft to perform the switch action. The switch operating force is controlled by the servo controller. The multi-turn pulse servo motor passes through the precision planetary reducer to amplify the operating force, and then after connecting the disc-type dynamic torque sensor and the universal shaft, the operating force is finally transmitted to the operating mechanism of the high-voltage switchgear.

[0027] The mechanical characteristic data acquisition part includes: a disc torque sensor. The disc torque sensor is arranged in the housing, one end of the disc torque sensor is connected to the manual operation hole of the operating mechanism of the high-voltage switchgear through a universal shaft using standard parts, and the other end is fixedly connected to the planetary reducer using standard parts. During the switching operation of the high-voltage switchgear, the disc torque sensor collects the operating torque change data. The control power transmission part outputs the switching operating force to the operating mechanism of the high-voltage switchgear to perform the switching operation. During the switching operation, all the operating torque data are collected by the disc torque sensor. The operating torque data includes normal or abnormal data of the planetary reducer.

[0028] The data analysis and control part includes: a smart terminal and a tablet computer connected to the smart terminal; the smart terminal is fixedly arranged at the bottom inside the shell and is 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, and the tablet computer is fixedly arranged on the upper part of the shell, and is used to obtain the mechanical fault diagnosis results according to the operating torque change data and display the mechanical fault diagnosis results.

[0029] The tablet computer includes a computer body and a touch screen, wherein the touch screen is fixedly embedded in the upper surface of the housing, and the computer body is fixedly arranged on the side of the touch screen facing the inside of the housing. The smart terminal is also provided with a power signal interface for connecting an external power supply. The smart terminal is also provided with a signal interface to provide a switch action start and stop travel signal.

[0030] The operating torque data is collected and transmitted to the smart terminal by the disc-type dynamic torque sensor, and then transmitted to the tablet PC after analysis by the smart terminal. The tablet PC and the built-in professional characteristic analysis software perform data analysis. On the other hand, it can also control the private service motor, adjust the output angle and speed of the motor, and draw the operating torque-switch output angle curve during this operation in the diagnostic function window of the software. The data-curve will be automatically compared with the conventional software in the professional software database, and then a professional judgment will be given to determine whether the switch operating torque is normal or the fault is stuck and a detailed analysis report will be issued, providing fast and professional analysis and judgment for switch maintenance personnel. The professional characteristic analysis software set in the tablet PC is any existing data processing software, which can obtain the switch output angle according to the operating torque data, and then obtain the operating torque-switch output angle curve, and compare it with the standard curve. If the two are different, it is judged that there is a mechanical fault in the high-voltage switchgear. As long as the tablet PC can achieve the above functions, it is not limited to how to achieve them.

[0031] In summary, the mechanical fault diagnosis device of the high-voltage switchgear in the embodiment of the present invention comprises a mechanical characteristic data acquisition part, a data analysis and control part connected to the mechanical characteristic data acquisition part, a control power transmission part connected to the mechanical characteristic data acquisition part and the data analysis and control part, and a device main body; the device main body comprises: a shell, a triangular support frame for supporting the shell; the mechanical characteristic data acquisition part, the control power transmission part, and the data analysis and control part are arranged inside the shell, and the control power transmission part is connected to the high-voltage switchgear, which can accurately and efficiently detect the mechanical fault of the high-voltage switchgear, thereby ensuring the safe operation of the high-voltage switchgear in the power grid device and the normal and efficient implementation of routine inspection and maintenance work.

[0032] like Figure 4 The figure shows a structural diagram of a mechanical fault diagnosis system of a high-voltage switchgear provided by an embodiment of the present invention. The mechanical fault diagnosis system of the high-voltage switchgear comprises: a high-voltage switchgear and the mechanical fault diagnosis device of the above-mentioned high-voltage switchgear.

[0033] The high-voltage switchgear includes: an output operating rod, an operating mechanism, a vertical connecting rod and a switch transmission part; one end of the output operating rod is connected to the universal shaft in the mechanical fault diagnosis device of the high-voltage switchgear, the other end of the output operating rod 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. The control power transmission part of the mechanical fault diagnosis device outputs the switch operating force to the operating mechanism through the universal shaft and the output operating rod, and then the operating mechanism and the vertical connecting rod drive the switch transmission part to perform the opening and closing action.

[0034] The switch transmission part includes: an operating rod, a rotating bearing seat, an inter-pole rod, a porcelain bottle, a main conductive part and an inter-phase rod; the other end of the vertical connecting rod is movably connected to one end of the operating rod, and the other end of the operating rod is fixedly connected to the rotating bearing seat. The rotating bearing seat is connected to the main conductive part through the porcelain bottle, and the rotating bearing seat is also connected to the inter-pole rod, and the inter-phase rod is connected to the other end of the vertical connecting rod.

[0035] The above are only some implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

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 part, a data analysis and control part connected to the mechanical characteristic data acquisition part, a control power transmission part connected to the mechanical characteristic data acquisition part and the data analysis and control part, and a device main body; the device main body includes: a shell, a triangular support frame for supporting the shell; the mechanical characteristic data acquisition part, the control power transmission part, and the data analysis and control part are arranged inside the shell, and the control power transmission part is connected to the high-voltage switchgear.

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

3. The mechanical fault diagnosis device according to claim 2, characterized in that: The planetary reducer is connected to the manual operation hole of the operating mechanism of the high-voltage switch device through the universal shaft, and the servo controller is used to control the servo motor to transmit the switch operating force to the operating mechanism of the high-voltage switch device through the universal shaft to perform the switching action.

4. The mechanical fault diagnosis device according to claim 2, characterized in that: The mechanical characteristic data acquisition part 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 switch device through the universal shaft using standard parts, and the other end is fixedly connected to the planetary reducer using standard parts; during the switching action of the high-voltage switch device, the disc torque sensor collects operating torque change data.

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

6. The mechanical fault diagnosis device according to claim 4, characterized in that: The data analysis and control part includes: a smart terminal and a tablet computer connected to the smart terminal; the smart terminal is fixedly arranged at the bottom of the shell 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, and the tablet computer is fixedly arranged on the upper part of the shell, 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 according to claim 6, characterized in that: The tablet computer comprises a computer body and a touch screen, wherein the touch screen is fixedly embedded in the upper surface of the shell, and the computer body is fixedly arranged on a side of the touch screen facing the inside of the shell.

8. The mechanical fault diagnosis device according to claim 6, characterized in that: The smart terminal is also provided 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 comprises: a high-voltage switchgear and a mechanical fault diagnosis device for the high-voltage switchgear as described in any one of claims 1 to 8; the high-voltage switchgear comprises: an output operating rod, an operating mechanism, a vertical connecting rod and a switch transmission part; one end of the output operating rod is connected to the universal joint in the mechanical fault diagnosis device of the high-voltage switchgear, the other end of the output operating rod 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 according to claim 9, characterized in that: The switch transmission part includes: an operating rod, a rotating bearing seat, an inter-pole rod, a porcelain bottle, a main conductive part and an inter-phase rod; the other end of the vertical connecting rod is movably connected to one end of the operating rod, and the other end of the operating rod is fixedly connected to the rotating bearing seat, and the rotating bearing seat is connected to the main conductive part through the porcelain bottle, and the rotating bearing seat is also connected to the inter-pole rod, and the inter-phase rod is connected to the other end of the vertical connecting rod.

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