Probe for in-service inspection of nuclear power station
By designing the in-service inspection probe of nuclear power plants, the problem of inconvenient replacement of the detection probe is solved, convenient installation and disassembly and height adjustment are achieved, and inspection efficiency is improved.
Patent Information
- Application Number
- CN202422200725.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing detection probes are inconvenient to replace, resulting in low efficiency in inspections in service of nuclear power plants.
A probe for in-service inspection of nuclear power plants is designed, including a mounting seat, a trolley, a lifting device and a transmission mechanism. By rotating the shank, the drive gear and drum are driven, the installation and disassembly of the detection probe are realized, and the height adjustment is performed through the screw and connecting rod structure.
It realizes convenient installation and disassembly of the detection probe, can adapt to inspection of mechanical equipment of different heights, and improves inspection efficiency.
Smart Images
Figure CN223260361U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of inspection probes, in particular to a probe for in-service inspection of nuclear power plants. Background Art
[0002] In-service inspections of mechanical equipment in the nuclear island of a nuclear power plant should be carried out regularly. Generally speaking, in-service inspections of mechanical equipment in the nuclear island of a nuclear power plant should be carried out according to the service life and operating conditions of the equipment, usually once a year or once every two years. During the inspection process, various indicators of the equipment should be checked, including the mechanical performance, electrical performance, safety performance and other aspects of the equipment.
[0003] Due to the different types of mechanical equipment, different detection probes need to be frequently replaced to inspect mechanical equipment at different heights. The existing detection probes are inconvenient to replace, which reduces the inspection efficiency.
[0004] The utility model aims to solve the technical problems existing in the prior art. To this end, a probe for in-service inspection of nuclear power plants is proposed. Utility Model Content
[0005] The purpose of the present utility model is to provide a probe for in-service inspection of a nuclear power plant, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A probe for in-service inspection of a nuclear power plant comprises a mounting base and a trolley, wherein a lifting device is provided inside the trolley, the lifting device is rotatably connected to the mounting base, one end of the mounting base is rotatably connected to a driving mechanism, and the mounting base is connected to a measuring device;
[0008] The mounting seat is rotatably connected to a transmission mechanism, which includes a rotating drum located in the mounting seat and rotatably connected to the mounting seat, an engaging groove is provided on the cylindrical surface of the rotating drum, and a guide groove is provided on the inner surface of the rotating drum, and the guide groove is inclined;
[0009] An installation device is provided inside the mounting seat, which includes an insertion rod, which is horizontally slidably connected to the mounting seat, the insertion rod is located in the rotating drum and is slidably connected to the rotating drum, and a slider is fixedly connected to the cylindrical surface of the insertion rod, which is located in the guide groove and is slidably connected to the rotating drum.
[0010] As a further solution of the present invention: the lifting device includes a movable plate and a screw rod, one end of the movable plate is horizontally slidably connected to the base, the other end of the movable plate is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the mounting seat.
[0011] As a further solution of the present invention: the screw rod passes through the movable plate and is threadedly connected to the movable plate, one end of the screw rod is rotatably connected to the trolley, and the other end of the screw rod is fixedly connected to a handle.
[0012] As a further solution of the present invention: the driving mechanism includes a rotating handle, which is rotatably connected to the mounting seat, and a driving shaft is fixedly connected to the contact surface between the rotating handle and the mounting seat, and a driving gear is fixedly connected to the other end of the driving shaft, and the driving gear is located in the meshing groove and meshes with the meshing groove helical gear.
[0013] As a further solution of the present invention: the measuring device includes a detection probe, the detection probe is movably and fixedly connected to a mounting plate, and the mounting plate cooperates with the insertion rod.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: when the device is used, the rotating handle is rotated, the rotating handle drives the driving shaft to rotate, and the driving shaft drives the driving gear to rotate. Since the driving gear is engaged with the meshing groove helical gear, the driving gear drives the rotating drum to rotate through the meshing groove, and the rotating drum drives the guide groove to rotate. Since the guide groove is inclined, the slider is located in the guide groove and in sliding contact with the guide groove, that is, when the rotating drum rotates, the slider is squeezed to move, and the slider drives the insertion rod to move. The insertion rod passes through the mounting plate to limit it, and the installation of the detection probe is completed. Then the screw rod is driven to rotate by the handle. Since the screw rod is threadedly connected to the movable plate, the movable plate moves horizontally when the screw rod rotates, and the movable block drives the mounting seat to move vertically through the connecting rod to adjust the height, that is, the height of the detection probe is adjusted. This device facilitates the installation and disassembly of the detection probe, and the height of the detection probe can be adjusted at the same time, which is convenient for inspecting mechanical equipment at different heights. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The figure is a schematic diagram of the structure of a probe used for in-service inspection of nuclear power plants.
[0016] Figure 2 The figure is a side cross-sectional view of a mounting base for a probe used for in-service inspection of a nuclear power plant.
[0017] Figure 3 This is a schematic diagram of the structure of a rotating drum in a probe used for in-service inspection of nuclear power plants.
[0018] Figure 4 The figure is a schematic diagram of the structure of the driving mechanism in a probe used for in-service inspection of nuclear power plants.
[0019] 1-mounting base, 2-detection probe, 3-driving gear, 4-screw, 5-trolley, 6-driving shaft, 7-rotating handle, 8-rotating cylinder, 9-insertion rod, 10-mounting plate, 11-slider, 12-engaging groove, 13-guide groove, 14-moving plate, 15-connecting rod, 16-handle. DETAILED DESCRIPTION
[0020] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.
[0021] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.
[0022] Example 1
[0023] See also Figure 1-4 In an embodiment of the present utility model, a probe for in-service inspection of a nuclear power plant includes a mounting base 1 and a trolley 5. A lifting device is provided inside the trolley 5. The lifting device is rotatably connected to the mounting base 1. One end of the mounting base 1 is rotatably connected to a driving mechanism. The mounting base 1 is connected to a measuring device.
[0024] The mounting base 1 is rotatably connected to a transmission mechanism, which includes a rotating drum 8. The rotating drum 8 is located in the mounting base 1 and is rotatably connected to the mounting base 1. The cylindrical surface of the rotating drum 8 is provided with an engagement groove 12, and the inner surface of the rotating drum 8 is provided with a guide groove 13, which is inclined.
[0025] The mounting seat 1 is provided with a mounting device, which includes an insertion rod 9, which is horizontally slidably connected to the mounting seat 1, and the insertion rod 9 is located in the rotating drum 8 and is slidably connected to the rotating drum 8. The cylindrical surface of the insertion rod 9 is fixedly connected to a slider 11, and the slider 11 is located in the guide groove 13 and is slidably connected to the rotating drum 8. This device facilitates the installation and disassembly of the detection probe, and can also adjust the height of the detection probe, which is convenient for inspecting mechanical equipment at different heights.
[0026] Example 2
[0027] See also Figure 1-4 On the basis of embodiment 1, the lifting device further includes a movable plate 14 and a screw rod 4, one end of the movable plate 14 is horizontally slidably connected to the base 1, and the other end of the movable plate 14 is rotatably connected to the connecting rod 15, and the other end of the connecting rod 15 is rotatably connected to the mounting base 1.
[0028] Furthermore, the screw rod 4 passes through the movable plate 14 and is threadedly connected to the movable plate 14. One end of the screw rod 4 is rotatably connected to the trolley 5, and the other end of the screw rod 4 is fixedly connected to the handle 16. The screw rod 4 is driven to rotate by the handle 16. Since the screw rod 4 is threadedly connected to the movable plate 14, the movable plate 14 moves horizontally when the screw rod 4 rotates, and the movable block 11 drives the mounting base 1 to move vertically through the connecting rod 15 for height adjustment, that is, the height of the detection probe 2 is adjusted.
[0029] Furthermore, the driving mechanism includes a rotating handle 7, which is rotatably connected to the mounting base 1. The contact surface between the rotating handle 7 and the mounting base 1 is fixedly connected to a driving shaft 6. The other end of the driving shaft 6 is fixedly connected to a driving gear 3. The driving gear 3 is located in the meshing groove 12 and meshes with the helical gear of the meshing groove 12. When the rotating handle 7 is rotated, the rotating handle 7 drives the driving shaft 6 to rotate, and the driving shaft 6 drives the driving gear 3 to rotate. Since the driving gear 3 meshes with the helical gear of the meshing groove 12, the driving gear 3 drives the rotating drum 8 to rotate through the meshing groove 12, and the rotating drum 8 drives the guide groove 13 to rotate. Since the guide groove 13 is tilted, the slider 11 is located in the guide groove 13 and is in sliding contact with the guide groove 13. That is, when the rotating drum 8 rotates, the slider 11 is squeezed to move, and the slider 11 drives the insertion rod 9 to move. The insertion rod 9 passes through the mounting plate 10 to limit it, and the installation of the detection probe 2 is completed.
[0030] Furthermore, the measuring device includes a detection probe 2 , which is movably and fixedly connected to a mounting plate 10 , and the mounting plate 10 cooperates with the insertion rod 9 .
[0031] The working principle of the present invention is as follows: when the device is used, the rotating handle 7 is rotated, the rotating handle 7 drives the driving shaft 6 to rotate, and the driving shaft 6 drives the driving gear 3 to rotate. Since the driving gear 3 is engaged with the helical gear in the meshing groove 12, the driving gear 3 drives the rotating drum 8 to rotate through the meshing groove 12, and the rotating drum 8 drives the guide groove 13 to rotate. Since the guide groove 13 is inclined, the slider 11 is located in the guide groove 13 and slides in contact with the guide groove 13, that is, when the rotating drum 8 rotates, the slider 11 is squeezed to move, and the slider 11 drives the insertion rod 9 to move. The insertion rod 9 passes through the mounting plate 10 to limit it, that is, the installation of the detection probe 2 is completed, and then the screw rod 4 is driven to rotate by the handle 16. Since the screw rod 4 is threadedly connected to the movable plate 14, the movable plate 14 moves horizontally when the screw rod 4 rotates, and the movable block 11 drives the mounting seat 1 to move vertically through the connecting rod 15 to adjust the height, that is, the height of the detection probe 2 is adjusted. This device is convenient for installation and disassembly of the detection probe, and the height of the detection probe can be adjusted, which is convenient for inspecting mechanical equipment at different heights.
[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A probe for in-service inspection of a nuclear power plant, comprising a mounting base and a trolley, characterized in that: The cart is provided with a lifting device, the lifting device is rotatably connected to the mounting seat, one end of the mounting seat is rotatably connected to a driving mechanism, and the mounting seat is connected to a measuring device; The mounting seat is rotatably connected to a transmission mechanism, which includes a rotating drum located in the mounting seat and rotatably connected to the mounting seat, an engaging groove is provided on the cylindrical surface of the rotating drum, and a guide groove is provided on the inner surface of the rotating drum, and the guide groove is inclined; An installation device is provided inside the mounting seat, which includes an insertion rod, which is horizontally slidably connected to the mounting seat, the insertion rod is located in the rotating drum and is slidably connected to the rotating drum, and a slider is fixedly connected to the cylindrical surface of the insertion rod, which is located in the guide groove and is slidably connected to the rotating drum.
2. A probe for in-service inspection of a nuclear power plant according to claim 1, characterized in that: The lifting device includes a moving plate and a screw rod, one end of the moving plate is horizontally slidably connected to the base, the other end of the moving plate is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the mounting seat.
3. A probe for in-service inspection of a nuclear power plant according to claim 2, characterized in that: The screw rod passes through the movable plate and is threadedly connected to the movable plate. One end of the screw rod is rotatably connected to the trolley, and the other end of the screw rod is fixedly connected to a handle.
4. The probe for in-service inspection of a nuclear power plant according to claim 1, characterized in that: The driving mechanism includes a rotating handle, which is rotatably connected to the mounting seat. The contact surface between the rotating handle and the mounting seat is fixedly connected to a driving shaft, and the other end of the driving shaft is fixedly connected to a driving gear. The driving gear is located in the meshing groove and meshes with the meshing groove helical gear.
5. The probe for in-service inspection of a nuclear power plant according to claim 1, characterized in that: The measuring device comprises a detection probe, which is movably and fixedly connected to a mounting plate, and the mounting plate is matched with the insertion rod.