A new type of generator ABB medium voltage plate branch bus inspection device

Abstract

A new type of generator ABB medium-voltage plate branch bus inspection device, mainly composed of three parts: a travel drive module, an anti-rollover module, and a rotation detection module. The device is used in the field of ABB medium-voltage plate branch bus inspection of nuclear power plant generators. The travel drive module is clamped on the ABB medium-voltage plate branch bus under the compression force of the spring, and the driving synchronous belt enables the device to travel on the ABB medium-voltage plate branch bus; the observation camera in the rotation detection module can rotate around its arc track for observation; the anti-rollover module is stuck in the groove of the ABB medium-voltage plate branch bus to prevent rollover during the operation of the device. The present invention belongs to a portable multifunctional small inspection robot, which can provide a more reliable and portable operation plan for the inspection of the ABB medium-voltage plate branch bus of the nuclear power plant generator set.

Description

Technical Field

[0001] The invention belongs to the field of ABB medium-voltage plate branch bus inspection of a nuclear power plant generator, and in particular relates to a novel ABB medium-voltage plate branch bus inspection device for a generator. Background Art

[0002] The ABB medium-voltage branch busbar of the nuclear power plant generator set is an important part of the generator set. The surface defects of the ABB medium-voltage branch busbar and the reliability of the bolt connection are the key focus of maintenance, so the ABB medium-voltage branch busbar is an important inspection and maintenance item during overhaul. However, due to the special structure of the ABB medium-voltage branch busbar and its deep vertical structure, it is difficult to conduct a complete and detailed inspection of the ABB medium-voltage branch busbar from the outside, which has caused great difficulties in the inspection of the ABB medium-voltage branch busbar.

[0003] Based on the above situation, it is necessary to design a portable and reliable inspection device for ABB medium voltage branch busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1 To check the installation structure of the device on the branch busbar of the ABB medium pressure plate;

[0005] Figure 2 It is a structural diagram of the inspection device;

[0006] Figure 3 This is the structural diagram of the walking drive module;

[0007] Figure 4 This is a diagram of the structure of the rotation detection module;

[0008] Figure 5 A first axonometric view of the camera module is shown;

[0009] Figure 6 A second axonometric view of the camera module is shown;

[0010] Figure 7 This is the structural diagram of the anti-tilt module;

[0011] Figure 8 This is the main frame diagram of the observation camera.

[0012] Wherein: 1. walking drive module, 2. rotation detection module, 3. anti-rollover module, 1.1. endoscope, 1.2. spring adjustment spindle, 1.3. synchronous belt, 1.4. first spring connecting frame, 1.5. driving clamping spring, 1.6. second spring connecting frame, 1.7 main frame module, 1.8. driving motor module, 1.19. rotating track mounting frame, 1.10. main frame cover, 1.11. butterfly nut, 2.1. observation camera module, 2.2. rotating track, 2.3. rotating track end beam, 2.1.1. camera, 2.1.2. observation camera main frame, 2.1.3. track clamping spring, 2.1.4. track clamping wheel, 2.1.5. observation camera motor module, 2.1.6. fixed shaft, 2.1.7. track clamping wheel shaft, 3.1. adaptive spring, 3.2. spring mounting plate, 3.3. adaptive slide plate, 3.4. pulley. DETAILED DESCRIPTION

[0013] In order to further explain the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0014] like Figures 1 to 8 As shown, a novel generator ABB medium voltage plate branch bus inspection device is characterized in that the device includes a travel drive module 1, an anti-tilt module 3 and a rotation detection module 2;

[0015] The travel drive module 1 includes an endoscope 1.1, a spring adjustment spindle 1.2, a synchronous belt 1.3, a first spring connecting frame 1.4, a drive clamping spring 1.5, a second spring connecting frame 1.6, a main frame module 1.7, a drive motor module 1.8, a rotating track mounting frame 1.9, a main frame cover plate 1.10 and a butterfly nut 1.11;

[0016] The rotation detection module 2 includes three parts: a rotating track 2.2, a rotating track end beam 2.3, and an observation camera module 2.1. The observation camera module 2.1 mainly includes a camera 2.1.1, an observation camera main frame 2.1.2, a track clamping spring 2.1.3, a track clamping wheel 2.1.4, an observation camera motor module 2.1.5, a fixed shaft 2.1.6, and a track clamping wheel shaft 2.1.7;

[0017] The anti-tilt module 3 mainly includes an adaptive spring 3.1, a spring mounting plate 3.2, an adaptive slide plate 3.3, and a pulley 3.4;

[0018] The travel drive module 1 is clamped on the ABB medium pressure plate branch bus under the clamping force of the driving clamping spring 1.5, and drives the synchronous belt 1.3 to travel on the ABB medium pressure plate branch bus; the rotating track 2.2 is installed on the travel drive module 1 through the rotating track mounting frame 1.9; the observation camera module 2.1 can rotate around the rotating track 2.2 for observation; the anti-rollover module 3 is installed on the first spring connecting frame 1.4 and the second spring connecting frame 1.6, and is stuck in the groove of the ABB medium pressure plate branch bus to prevent rollover during the operation of the device.

[0019] A novel generator ABB medium voltage plate branch bus inspection device, characterized in that the travel drive module 1 includes four main frame modules 1.7, two of which are arranged in a group and spaced apart, and fixedly connected by a crossbeam, and the two groups of the main frame modules 1.7 are arranged relative to each other so that the overall structure is C-shaped;

[0020] Each main frame module 1.7 is provided with a synchronous pulley at the outer end thereof, and a synchronous belt 1.3 is wound around the synchronous pulley to cooperate with the synchronous pulley. A driving motor module 1.8 is installed in the cavity inside each main frame module 1.7. The driving motor module 1.8 is used to drive the synchronous pulley to rotate, thereby driving the synchronous belt 1.3 to rotate, and further driving the device to move on the branch busbar;

[0021] A novel generator ABB medium voltage plate branch bus inspection device, characterized in that the first spring connecting frame 1.4 and the second spring connecting frame 1.6 are respectively installed at the ends of two groups of main frame modules 1.7, the first spring connecting frame 1.4 and the second spring connecting frame 1.6 are connected by a pin shaft and can rotate around the pin shaft, thereby realizing that the angle between the two groups of main frame modules 1.7 can be adjusted; the first spring connecting frame 1.4 and the second spring connecting frame 1.6 both have a through hole for the spring adjustment mandrel 1.2 to be connected through, the adjustment mandrel 1.2 is a T-shaped structure, and its single head end has a threaded structure; the driving clamping spring 1.5 is sleeved on the outside of the spring adjustment mandrel 1.2, and the two ends are respectively against the first spring connecting frame 1.4 and the second spring connecting frame 1.6;

[0022] The threaded structure of the spring adjustment mandrel 1.2 is connected to the butterfly nut 1.11, so that the compression amount of the driving clamping spring 1.5 can be changed by adjusting the butterfly nut 1.11, thereby changing the angle between the two sets of main frame modules 1.7; wherein, increasing the angle between the two sets of main frame modules 1.7 facilitates installation of the device on the branch bus, and reducing the angle between the two sets of main frame modules 1.7 facilitates clamping and walking of the device on the branch bus;

[0023] The main frame cover plate 1.10 cooperates with the main frame module 1.7 to close the exposed cavity of the main frame module 1.7;

[0024] The endoscope 1.1 is a flexible tubular structure, which can be artificially changed in shape for the observation of specific targets;

[0025] There are four rotating track mounting frames 1.9, which are respectively mounted on the inner side of each main frame module for mounting the rotating track 2.2.

[0026] A novel generator ABB medium voltage plate branch bus inspection device is characterized in that the rotating track 2.2 of the rotating detection module 2 is an arc shape as a whole, and its cross-section is H-shaped, which is used to provide a walking track and guide for the track clamping wheel 2.1.4 of the observation camera module 2.1; the two ends of the two rotating tracks 2.2 are respectively fixedly connected by the rotating track end beams 2.3, which are used to provide mechanical limit for the observation camera module 2.1; the two rotating tracks 2.2 are installed on the walking drive module 1 through the rotating track mounting frame 1.9.

[0027] A novel generator ABB medium-voltage plate branch bus inspection device, characterized in that the observation camera main frame 2.1.2 of the observation camera module 2.1 is provided with a bottom plate structure, the center of the bottom plate structure is hollowed out, four bearing grooves are provided at the four corners above the bottom plate structure, a motor mounting platform is provided in front of the bottom plate structure, two side plates with waist-shaped mounting holes are provided on both sides above the bottom plate structure, four pin shaft mounting positions are provided at the four corners at the bottom of the bottom plate structure, and opening structures are provided on both sides of the bottom plate structure; the camera 2.1.1 is installed in the side plates on both sides above the bottom plate structure, and the camera can observe the branch bus through the hollow structure of the bottom plate structure;

[0028] The fixed shaft 2.1.6 is fixed in the four bearing grooves by bearings, and the two ends are connected and fixed with track clamping wheels 2.1.4. The track clamping wheel shaft 2.1.7 is a T-shaped structure, one end of which is inserted into the pin shaft installation position at the four corners of the bottom of the base structure, and the other end is fixedly installed with the track clamping wheel 2.1.4. The four track clamping wheel shafts 2.1.7 are each provided with a track clamping spring 2.1.3 near the track clamping wheel 2.1.4 and are connected to the opening structure, so that the observation camera module 2.1 forms four groups of clampable wheel group structures at the four corners; the observation camera motor module 2.1.5 is installed on the motor mounting platform, which can drive the observation camera module 2.1 to move; a camera lighting lamp is installed under the base structure of the observation camera main frame 2.1.2 for lighting.

[0029] A novel generator ABB medium voltage plate branch bus inspection device, characterized in that the spring mounting plate 3.2 of the anti-tilt module 3 is a long strip structure, which is mounted on the first spring connecting frame 1.4 and the second spring connecting frame 1.6 by screws;

[0030] The adaptive slide plate 3.3 is also a long strip structure with a rectangular opening, and is mounted on the spring mounting plate 3.2 through the adaptive spring 3.1, so that the adaptive slide plate 3.3 has a certain adaptive function;

[0031] The pulley 3.4 is installed in the rectangular opening of the adaptive slide plate 3.3 for walking to reduce friction.

[0032] The specific implementation process is as follows: First, manually tighten the butterfly nut 1.11 to shorten the distance between the first spring connecting frame 1.4 and the second spring connecting frame 1.6, and compress the drive clamping spring 1.5 therein, so that the two sets of main frame modules 1.7 rotate around the pin shaft to increase the angle between the two sets of main frame modules 1.7, which is convenient for introducing the ABB medium pressure plate branch bus. Import the inspection device into the ABB medium pressure plate branch bus, loosen the butterfly nut 1.11 to restore the length of the drive clamping spring 1.5, reduce the angle between the two sets of main frame modules 1.7, and clamp the ABB medium pressure plate branch bus by the elastic force of the drive clamping spring 1.5. The drive motor module 1.8 drives the inspection device to move along the ABB medium pressure plate branch bus. After the inspection device reaches the inspection position, the observation camera motor module 2.1.5 drives the observation camera module 2.1 to rotate around the rotating track 2.2 for a full-range inspection.

[0033] After the inspection is completed, the inspection device is withdrawn to the outside of the ABB medium voltage plate branch busbar, and the butterfly nut 1.11 is manually tightened to shorten the distance between the first spring connecting frame 1.4 and the second spring connecting frame 1.6, and the drive clamping spring 1.5 therein is compressed, so that the two sets of main frame modules 1.7 rotate around the pin shaft to increase the angle between the two sets of main frame modules 1.7, and the inspection device is withdrawn from the ABB medium voltage plate branch busbar to complete the inspection work.

Claims

1. A new type of generator ABB medium voltage plate branch bus inspection device, characterized in that: The device comprises a walking drive module, an anti-tilt module and a rotation detection module; The walking drive module includes an endoscope, a spring adjustment spindle, a synchronous belt, a first spring connecting frame, a driving clamping spring, a second spring connecting frame, a main frame module, a driving motor module, a rotating track mounting frame, a main frame cover plate and a butterfly nut; The rotation detection module includes three parts: a rotating track, a rotating track end beam, and an observation camera module. The observation camera module includes a camera, an observation camera main frame, a track clamping spring, a track clamping wheel, an observation camera motor module, a fixed shaft, and a track clamping wheel shaft; The anti-tilt module includes an adaptive spring, a spring mounting plate, an adaptive slide plate, and a pulley; The travel drive module is clamped on the ABB medium pressure plate branch busbar under the clamping force of the driving clamping spring, and drives the synchronous belt to travel on the ABB medium pressure plate branch busbar; the rotating track is installed on the travel drive module through the rotating track mounting frame; the observation camera module can rotate around the rotating track for observation; the anti-rollover module is installed on the first spring connecting frame and the second spring connecting frame, and is stuck in the groove of the ABB medium pressure plate branch busbar to prevent rollover during the operation of the device; The travel drive module includes four main frame modules, two of which are arranged in a group and spaced a certain distance apart and fixedly connected by a crossbeam, and the two groups of the main frame modules are arranged relative to each other so that the overall structure is C-shaped; A synchronous pulley is provided at the outer end of each main frame module, and a synchronous belt is wound around the synchronous pulley to cooperate with it. A driving motor module is installed in the cavity inside each main frame module, and the driving motor module is used to drive the synchronous pulley to rotate, thereby driving the synchronous belt to rotate, and then driving the device to move on the branch bus; The first spring connecting frame and the second spring connecting frame are respectively installed at the ends of the two groups of main frame modules, and the first spring connecting frame and the second spring connecting frame are connected by a pin shaft and can rotate around the pin shaft, thereby realizing that the angle between the two groups of main frame modules can be adjusted; the first spring connecting frame and the second spring connecting frame both have a through hole for a spring adjustment mandrel to pass through and connect, and the adjustment mandrel is a T-shaped structure, and its single end has a threaded structure; the driving clamping spring is sleeved outside the spring adjustment mandrel, and its two ends are respectively against the first spring connecting frame and the second spring connecting frame; The threaded structure of the spring adjustment mandrel is connected to the butterfly nut, so that the compression amount of the driving clamping spring can be changed by adjusting the butterfly nut, thereby changing the angle between the two sets of main frame modules; wherein, increasing the angle between the two sets of main frame modules facilitates installation of the device on the branch bus, and reducing the angle between the two sets of main frame modules facilitates clamping and walking of the device on the branch bus; The main frame cover plate cooperates with the main frame module to close the exposed cavity of the main frame module; An endoscope is a flexible tubular structure that can be artificially changed in shape for observation of specific targets; There are four rotating track mounting brackets, which are respectively mounted on the inner side of each main frame module for mounting the rotating track.

2. A novel generator ABB medium voltage plate branch bus inspection device according to claim 1, characterized in that: The rotating track of the rotating detection module is generally arc-shaped and has an H-shaped cross-section, which is used to provide a walking track and guide for the track clamping wheel of the observation camera module; the two ends of the two rotating tracks are fixedly connected by rotating track end beams, which are used to provide mechanical limit for the observation camera module; the two rotating tracks are installed on the walking drive module through a rotating track mounting frame.

3. A novel generator ABB medium voltage plate branch bus inspection device according to claim 2, characterized in that: The observation camera main frame of the observation camera module is provided with a bottom plate structure, the center of the bottom plate structure is hollowed out, four bearing grooves are provided at the four corners above the bottom plate structure, a motor mounting platform is provided in front of the bottom plate structure, two side plates with waist-shaped mounting holes are provided on both sides above the bottom plate structure, four pin shaft mounting positions are provided at the four corners at the bottom of the bottom plate structure, and opening structures are provided on both sides of the bottom plate structure; the camera is installed in the side plates on both sides above the bottom plate structure, and the camera can observe the branch busbar through the hollow structure of the bottom plate structure; The fixed shaft is fixed in the four bearing grooves through bearings, and track clamping wheels are connected and fixed at both ends. The track clamping wheel shaft is a T-shaped structure, one end of which is inserted into the pin shaft installation position at the four corners of the bottom of the base plate structure, and the other end is fixedly installed with a track clamping wheel. A track clamping spring is provided near the track clamping wheel on each of the four track clamping wheel shafts and is connected to the opening structure, so that the observation camera module forms four groups of clampable wheel group structures at the four corners; The observation camera motor module is installed on the motor installation platform and can drive the observation camera module to move; a camera lighting lamp is installed below the bottom plate structure of the observation camera main frame for lighting.

4. A novel generator ABB medium voltage plate branch bus inspection device according to claim 1, characterized in that: The spring mounting plate of the anti-tilt module is a long strip structure, and is mounted on the first spring connecting frame and the second spring connecting frame by screws; The adaptive slide plate is also a long strip structure with a rectangular opening, and is mounted on the spring mounting plate through an adaptive spring, so that the adaptive slide plate has a certain adaptive function; The pulley is installed in the rectangular opening of the adaptive skateboard for walking to reduce friction.

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