Installation device for detection probe of large embedded anchor bolt in nuclear power plant

Abstract

The utility model discloses a kind of installation devices for nuclear power plant large embedded anchoring bolt detection probe, including shell assembly and moving assembly;Shell assembly includes shell pedestal and adaptive pedestal;Shell pedestal is equipped with annular limit guide slot;Moving assembly includes mounting seat, the upper surface of mounting seat is equipped with guide rail, guide rail is set along the length direction of mounting seat;The first end of mounting seat is equipped with chuck, chuck is equipped with several moving wheels, moving wheel is located in limit guide slot;The second end of mounting seat is equipped with fixed seat, fixed seat is equipped in encoder wheel, encoder wheel is located in limit guide slot.Installation device can be supplied for nuclear power plant large embedded anchoring bolt detection probe installation, and can make that nuclear power plant large embedded anchoring bolt detection probe position is adjustable, compared with the scheme that staff hand-held detection probe, application this installation device, can effectively improve operation efficiency, reduce personnel operation intensity, reduce personnel irradiation dose.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power technology, and in particular to an installation device for a detection probe for large pre-embedded anchor bolts in nuclear power plants. Background Technology

[0002] The main equipment of the nuclear island in nuclear power plants uses a large number of large pre-embedded anchor bolts for fixing. The length of the large pre-embedded anchor bolts is large, and except for a small number of bolt ends that are exposed, the rest are inaccessible and in a pre-embedded state. Traditional bolt inspection uses a manual moving probe, which requires workers to hold the moving probe at all times. This method of operation results in high labor intensity for workers and low inspection efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an installation device for a detection probe for large pre-embedded anchor bolts in nuclear power plants, so as to solve the problem of high work intensity caused by manual movement of the probe for detection.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct an installation device for a detection probe for large pre-embedded anchor bolts in nuclear power plants, including a shell assembly and a moving assembly;

[0005] The outer shell assembly includes an outer shell base and an adapter base. Both the outer shell base and the adapter base are hollow structures that are axially connected at both ends. The adapter base is used to be installed at the end of a large pre-embedded anchor bolt in a nuclear power plant. The outer shell base is used to be sleeved on the outer periphery of the adapter base and fixed relative to the adapter base. The outer side of the outer shell base near its upper end face is provided with an annular limiting guide groove.

[0006] The movable component includes a mounting base located above the housing base. The upper surface of the mounting base is provided with a guide rail for connecting a large pre-embedded anchor bolt detection probe for nuclear power plants. The guide rail extends along the length of the mounting base. A chuck is provided at the first end of the mounting base, and a plurality of moving wheels are provided on the chuck. The moving wheels are located within the limiting guide groove. A fixed seat is provided at the second end of the mounting base, and the fixed seat is located on an encoder wheel. The encoder wheel is located within the limiting guide groove.

[0007] In some embodiments, both the outer shell base and the adapter base are cylindrical, and the upper surface of the adapter base is a plane;

[0008] The inner surface of the outer shell base near its lower end is provided with an annular limiting step. The lower surface of the limiting step is a plane and abuts against the upper surface of the adapter base.

[0009] In some embodiments, the outer wall surface of the adapter base in the circumferential direction near its lower end is provided with a plurality of limiting grooves, and the plurality of limiting grooves are spaced apart along the circumferential direction of the adapter base.

[0010] The outer wall surface of the outer shell base in the circumferential direction near its lower end is provided with a plurality of limiting holes; the outer shell assembly also includes a plurality of fasteners, which connect the limiting holes and the limiting grooves to fix the outer shell base and the adapter base relative to each other.

[0011] In some embodiments, the number of both the limiting groove and the limiting hole is three.

[0012] In some embodiments, the adapter base is a nylon adapter base.

[0013] In some embodiments, the chuck has an arc-shaped structure, and the chuck is further provided with a drive component connected to the moving wheel.

[0014] In some embodiments, the driving element includes a drive motor.

[0015] In some embodiments, the fixing base is connected to the second end of the mounting base via a connecting rod, and a compression spring is sleeved on the portion of the connecting rod facing away from the mounting base.

[0016] In some embodiments, the moving component further includes an adjustment seat connected to the guide rail via a slider for mounting the detection probe of the large pre-embedded anchor bolts in the nuclear power plant.

[0017] In some embodiments, the mounting base is further provided with a drive assembly connected to the adjustment seat for driving the adjustment seat to move along the guide rail.

[0018] The present invention offers the following advantages: The installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants enables the installation of such probes and allows for adjustable probe positions. Compared to the method of workers holding the probes by hand, this installation device effectively improves work efficiency, reduces worker workload, and minimizes radiation exposure. Furthermore, the device has a relatively simple structure and low manufacturing cost, facilitating its widespread application. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0020] Figure 1 This is one of the application schematic diagrams of the installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants in some embodiments of this utility model;

[0021] Figure 2 This is the second application schematic diagram of the installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants in some embodiments of this utility model;

[0022] Figure 3 This is an application schematic diagram of the installation device (without the outer shell base) for detecting large pre-embedded anchor bolts in nuclear power plants in some embodiments of this utility model.

[0023] Figure 4 This is an application cross-sectional view of the installation device for detecting large pre-embedded anchor bolts in nuclear power plants, according to some embodiments of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the outer shell assembly in some embodiments of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the moving component in some embodiments of this utility model. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0027] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0029] See Figures 1 to 6 This utility model discloses an installation device for a detection probe for large pre-embedded anchor bolts in nuclear power plants, including a housing assembly 10 and a moving assembly 20.

[0030] The housing assembly 10 includes a housing base 11 and an adapter base 12. Both the housing base 11 and the adapter base 12 are hollow structures that extend through both ends axially. The adapter base 12 is used to install on the end of a large pre-embedded anchor bolt 100 for nuclear power plants, and the end of the large pre-embedded anchor bolt 100 can be exposed on the upper surface of the adapter base 12 for ultrasonic testing. The housing base 11 is used to fit around the outer periphery of the adapter base 12 and is fixed relative to the adapter base 12. The outer side of the housing base 11 near its upper surface is provided with an annular limiting guide groove 112.

[0031] The movable component 20 includes a mounting base 21 located above the housing base 11. The mounting base 21 may be a generally flat rectangular columnar structure, and its length may be greater than the outer diameter of the housing base 11. The upper surface of the mounting base 21 is provided with a guide rail 22 for connecting a large pre-embedded anchor bolt detection probe 30 for nuclear power plants. The guide rail 22 extends along the length of the mounting base 21. The first end of the mounting base 21 is provided with a chuck 23, on which a plurality of moving wheels 24 are provided. The moving wheels 24 are located within the limiting guide groove 112. The second end of the mounting base 21 is provided with a fixing seat 25, which is located on an encoder wheel 26 within the limiting guide groove 112.

[0032] This installation device for detecting large pre-embedded anchor bolts in nuclear power plants enables the installation of such probes and allows for adjustable probe positions. Compared to manual probe handling, this device significantly improves work efficiency, reduces worker workload, and minimizes radiation exposure. Furthermore, the device's relatively simple structure and low manufacturing cost facilitate its widespread application.

[0033] See Figures 3 to 5 In some embodiments, both the outer shell base 11 and the adapter base 12 are cylindrical, and the upper end surface of the adapter base 12 is flat. The inner surface of the outer shell base 11 near its lower end is provided with an annular limiting step 111, the lower surface of the limiting step 111 is flat, and the lower surface of the limiting step 111 abuts against the upper surface of the adapter base 12.

[0034] See Figures 3 to 5 In some embodiments, the outer wall surface of the adapter base 12 in the circumferential direction near its lower end is provided with a plurality of limiting grooves 121, and the plurality of limiting grooves 121 are spaced apart along the circumferential direction of the adapter base 12; the limiting grooves 121 may be U-shaped groove structures with downward openings. The outer wall surface of the housing base 11 in the circumferential direction near its lower end is provided with a plurality of limiting holes; the housing assembly 10 also includes a plurality of fasteners 13, the fasteners 13 connecting the limiting holes and the limiting grooves 121 to fix the housing base 11 and the adapter base 12 relative to each other.

[0035] See Figures 3 to 5 In some embodiments, there are three limiting grooves 121 and three limiting holes. The three limiting grooves 121 are evenly distributed along the circumferential direction of the adapter base 12, and the three limiting holes are evenly distributed along the circumferential direction of the outer shell base 11. The fastener 13 may be, but is not limited to, a fastening bolt, a fastening screw, a fastening pin, or a locking knob.

[0036] In some embodiments, the axial length of the housing base 11 is greater than the axial length of the adapter base 12. Preferably, the axial length of the housing base 11 can be twice the axial length of the adapter base 12.

[0037] In some embodiments, the adapter base 12 is a nylon adapter base. Of course, the material of the adapter base 12 can also be selected and set according to actual needs, and no specific limitation is made here. The housing base 11 can be a metal base, and the housing base 11 can be made of stainless steel.

[0038] In this application, different specifications of large pre-embedded anchor bolts 100 for nuclear power plants can be manufactured with different specifications of adapter bases 12, and the outer shell base 11 can be a general component. After selecting a suitable adapter base 12 according to the different specifications of large pre-embedded anchor bolts 100 for nuclear power plants, the outer shell base 11 and the adapter base 12 are fixed relative to each other, and the subsequent testing work can be carried out.

[0039] See Figure 5 In some embodiments, the upper end of the housing base 11 is provided with an annular groove, and the lower surface of the mounting base 21 is provided with an annular protrusion. The protrusion and the groove cooperate with each other to play a guiding and limiting role.

[0040] See Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6 In some embodiments, the chuck 23 has an arc-shaped structure and is further provided with a drive component connected to the movable wheel 24. In some embodiments, the drive component includes a drive motor, which may be a servo motor with forward and reverse rotation functions and high adjustment precision. In some embodiments, the movable wheel 24 may also be a gear, and the limiting guide groove 112 may be a gear groove.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6In some embodiments, the fixed base 25 is connected to the second end of the mounting base 21 via a connecting rod 27, and a compression spring 28 is sleeved on the part of the connecting rod 27 facing away from the mounting base 21. The compression spring 28 can apply elastic force to the fixed base 25, so that the encoder wheel 26 on the fixed base 25 can always move in contact with the limiting guide groove 112. The fixed base 25 is also provided with an encoder chip 261 that cooperates with the encoder wheel 26. The rotation of the encoder wheel 26 drives the magnet to rotate, and the encoder chip 261 generates a pulse signal. By recording the pulse signal, the arc length of the rotation can be calculated, and the angle of rotation can be obtained by calculation. Both the encoder wheel 26 and the encoder chip 261 can be selected from existing technologies, and can be mature products sold on the market. No specific limitation is made here. The connecting rod 27 can be a screw, and the number of connecting rods 27 can be one or two. Preferably, the number of connecting rods 44 is two.

[0042] See Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6 In some embodiments, the moving assembly 20 also includes an adjustment seat 29 connected to the guide rail 22 via a slider 291 for mounting the large pre-embedded anchor bolt detection probe 30 of the nuclear power plant.

[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6 In some embodiments, the guide rail 22 is provided with a plurality of positioning holes, which extend along the length of the guide rail 22. The adjusting seat 29 is also provided with a plurality of positioning elements, which are inserted into the positioning holes to fix the adjusting seat 29 in a fixed position. The positioning elements may be, but are not limited to, fastening bolts, fastening screws, fastening pins, or locking knobs, and are not specifically limited here. Specifically, the moving component 20 can realize the radial position adjustment of the nuclear power plant large pre-embedded anchor bolt detection probe 30 relative to the scanning workpiece. After adjusting to a suitable position, the positioning elements are locked to fix the radial position of the nuclear power plant large pre-embedded anchor bolt detection probe 30.

[0044] In some embodiments, the mounting base 21 is further provided with a drive assembly connected to the adjusting base 29 for driving the adjusting base 29 to move along the guide rail 22. The drive assembly drives the adjusting base 29 to move repeatedly along the guide rail 32 and can control the adjusting base 29 to stop at a fixed position. The drive assembly includes a drive motor and a lead screw connected to the adjusting base 29. The drive motor can be a servo motor, which has forward and reverse rotation functions and high adjustment accuracy. Alternatively, the drive assembly includes a hydraulic cylinder, with its drive rod connected to the adjusting base 29. Alternatively, the drive assembly includes a pneumatic cylinder, with its pneumatic rod connected to the adjusting base 29. Of course, the drive assembly can also be connected to the slider 291 to drive the slider 291 to move. Of course, other existing technologies can also be used for the drive assembly, which are not specifically limited here.

[0045] See Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6 In some embodiments, the first end of the mounting base 21 is provided with an operating element 210, and / or the fixed base 25 is provided with an operating element 210. The operating element 210 can be used by an operator to assist in driving the moving component 20.

[0046] The operating component 210 can be an operating handle or an operating handwheel. The operating component 210 can be vertically connected to the upper surface of the first end of the mounting base 21, for example, through a threaded connection. Alternatively, the operating component 210 can be vertically connected to the upper surface of the fixed base 25, for example, through a threaded connection.

[0047] In some embodiments, the large pre-embedded anchor bolt inspection probe 30 for nuclear power plants may be, but is not limited to, an ultrasonic phased array probe. The ultrasonic phased array probe is capable of inspecting for defects along the entire length of the large pre-embedded anchor bolt 100 from its end.

[0048] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. An installation device for a detection probe of large pre-embedded anchor bolts in nuclear power plants, characterized in that, Includes a housing assembly (10) and a moving assembly (20); The outer shell assembly (10) includes an outer shell base (11) and an adapter base (12). Both the outer shell base (11) and the adapter base (12) are hollow structures with axially penetrating both ends. The adapter base (12) is used to be installed at the end of a large pre-embedded anchor bolt (100) in a nuclear power plant. The outer shell base (11) is used to be sleeved on the outer periphery of the adapter base (12) and fixed relative to the adapter base (12). The outer side of the outer shell base (11) near its upper end face is provided with an annular limiting guide groove (112). The moving component (20) includes a mounting base (21) located above the outer shell base (11). The upper surface of the mounting base (21) is provided with a guide rail (22) for connecting a large pre-embedded anchor bolt detection probe (30) for nuclear power plants. The guide rail (22) extends along the length of the mounting base (21). The first end of the mounting base (21) is provided with a chuck (23). The chuck (23) is provided with a plurality of moving wheels (24). The moving wheels (24) are located in the limiting guide groove (112). The second end of the mounting base (21) is provided with a fixing seat (25). The fixing seat (25) is located on an encoder wheel (26). The encoder wheel (26) is located in the limiting guide groove (112).

2. The installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants according to claim 1, characterized in that, Both the outer shell base (11) and the adapter base (12) are cylindrical, and the upper end surface of the adapter base (12) is a plane; The inner surface of the outer shell base (11) near its lower end is provided with an annular limiting step (111). The lower surface of the limiting step (111) is a plane, and the lower surface of the limiting step (111) abuts against the upper surface of the adapter base (12).

3. The installation device for detecting large pre-embedded anchor bolts in nuclear power plants according to claim 2, characterized in that, The outer wall surface of the adapter base (12) in the circumferential direction near its lower end is provided with a plurality of limiting grooves (121), and the plurality of limiting grooves (121) are spaced apart along the circumferential direction of the adapter base (12). The outer wall surface of the outer shell base (11) in the circumferential direction near its lower end is provided with a plurality of limiting holes; the outer shell assembly (10) also includes a plurality of fasteners (13), the fasteners (13) connecting the limiting holes and the limiting groove (121) to fix the outer shell base (11) and the adapter base (12) relative to each other.

4. The installation device for detecting large pre-embedded anchor bolts in nuclear power plants according to claim 3, characterized in that, The number of the limiting groove (121) and the limiting hole are both three.

5. The installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants according to claim 1, characterized in that, The adapter base (12) is a nylon adapter base.

6. The installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants according to claim 1, characterized in that, The chuck (23) has an arc-shaped structure, and the chuck (23) is also provided with a drive component connected to the moving wheel (24).

7. The installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants according to claim 6, characterized in that, The driving component includes a drive motor.

8. The installation device for detecting large pre-embedded anchor bolts in nuclear power plants according to claim 1, characterized in that, The fixed base (25) is connected to the second end of the mounting base (21) via a connecting rod (27), and a compression spring (28) is sleeved on the part of the connecting rod (27) facing away from the mounting base (21).

9. The installation device for the detection probe of large pre-embedded anchor bolts in nuclear power plants according to claim 1, characterized in that, The moving component (20) also includes an adjustment seat (29) connected to the guide rail (22) via a slider (291) for mounting the nuclear power plant large pre-embedded anchor bolt detection probe (30).

10. The installation device for a detection probe for large pre-embedded anchor bolts in nuclear power plants according to claim 9, characterized in that, The mounting base (21) is also provided with a drive assembly connected to the adjusting base (29) for driving the adjusting base (29) to move along the guide rail (22).

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