Nuclear power plant workpiece notch groove defect detection equipment and eddy current probe clamping device thereof

Abstract

The utility model discloses nuclear power plant workpiece notch groove defect detection equipment and an eddy current probe clamping device thereof, and the eddy current probe clamping device comprises a first lifting mechanism, a second lifting mechanism and a horizontal movement mounting mechanism, the first lifting mechanism comprises a first base, a first supporting plate, a first top plate, a first guide rail, a first threaded guide rail, a first bearing, a first mounting block and a first gear piece, and the second lifting mechanism comprises a second base, a second supporting plate, a second top plate, a second guide rail, a second threaded guide rail, a second bearing, a second mounting block and a second gear piece. According to the device, notch groove defect detection of the whole plane of a workpiece can be achieved, and compared with a handheld eddy current probe for notch groove defect detection, the influence of hand shaking of an operator on the detection stability of the eddy current probe is avoided; it can be guaranteed that the eddy current probe is parallel to the notch groove defect, and the detection stability and detection precision of the eddy current probe are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power technology field especially relates to a nuclear power plant workpiece groove defect detection equipment and eddy current probe clamping device. BACKGROUND

[0002] Workpiece groove defect can weaken the strength of material or structure, can lead to stress concentration, thereby increase the risk of structural failure, some workpiece groove defect can cause equipment failure or collapse at the critical moment, especially under high stress or high load conditions, for workpiece in the manufacturing process, groove defect can lead to workpiece scrap or performance decline.

[0003] In prior art, detection personnel generally hand hold eddy current probe to detect workpiece groove defect, and manual detection is susceptible to fatigue, distraction and other factors, leading to misjudgment and missed detection, and the detection precision and consistency are poor. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem, provides a nuclear power plant workpiece groove defect detection equipment and eddy current probe clamping device.

[0005] The utility model solves the technical problem and adopts the technical scheme that constructs an eddy current probe clamping device, including first elevating mechanism, second elevating mechanism and horizontal movement installation mechanism.

[0006] The first elevating mechanism includes first base, first support plate, first top plate, first guide rail, first threaded guide rail, first bearing, first mounting block and first gear piece, the first base and the first top plate are oppositely arranged at the both ends of the first support plate, the first guide rail connects the first base with the first top plate, the first threaded guide rail connects the first base with the first top plate, the first bearing is installed on the first base, and the first bearing is connected with the lower part of the first threaded guide rail, the first mounting block is connected with the first guide rail and the first threaded guide rail, and the first gear piece is connected with the upper end of the first threaded guide rail.

[0007] The second lifting mechanism comprises a second base, a second support plate, a second top plate, a second guide rail, a second threaded guide rail, a second bearing, a second mounting block and a second gear piece. The second support plate is arranged opposite to the first support plate. The second base and the second top plate are arranged opposite to each other at two ends of the second support plate. The second guide rail connects the second base and the second top plate. The second threaded guide rail connects the second base and the second top plate. The second bearing is mounted on the second base and connected with the lower part of the second threaded guide rail. The second mounting block is connected with the second guide rail and the second threaded guide rail. The second gear piece is connected with the upper end of the second threaded guide rail, and the second gear piece is connected with the first gear piece through a chain.

[0008] The horizontal moving mounting mechanism comprises a first horizontal guide rail, a second horizontal guide rail and a clamp for mounting an eddy current probe. Two ends of the first horizontal guide rail in the length direction are respectively connected with the first mounting block and the second mounting block. The second horizontal guide rail is movably mounted on the first horizontal guide rail along the length direction of the first horizontal guide rail, and the length direction of the second horizontal guide rail is arranged perpendicular to the length direction of the first horizontal guide rail. The clamp is movably mounted on the second horizontal guide rail along the length direction of the second horizontal guide rail.

[0009] In some embodiments, the first mounting block is provided with a first mounting hole for the first guide rail to pass through and a first threaded hole for the first threaded guide rail to pass through.

[0010] The second mounting block is provided with a second mounting hole for the second guide rail to pass through and a second threaded hole for the second threaded guide rail to pass through.

[0011] In some embodiments, the number of the first guide rails is two, and the two first guide rails are arranged opposite to each other at two sides of the first threaded guide rail.

[0012] The number of the second guide rails is two, and the two second guide rails are arranged opposite to each other at two sides of the second threaded guide rail.

[0013] In some embodiments, the first base is provided with a first bearing seat for mounting the first bearing.

[0014] The second base is provided with a second bearing seat for mounting the second bearing.

[0015] In some embodiments, the first gear piece comprises a first gear connected with the upper end of the first threaded guide rail, and a first operation handle connected with the axial upper surface of the first gear.

[0016] The second gear member comprises a second gear connected with the upper end of the second threaded guide rail, and a second operating handle connected with the axial upper surface of the second gear;

[0017] The chain connects the first gear and the second gear.

[0018] In some embodiments, the first mounting block is provided with a first recess on one side facing the second mounting block, the second mounting block is provided with a second recess on one side facing the first mounting block, and the two ends of the length direction of the first horizontal guide rail are connected with the first recess and the second recess respectively.

[0019] In some embodiments, the horizontal movement mounting mechanism further comprises a sliding block movably mounted on the first horizontal guide rail along the length direction of the first horizontal guide rail, and the second horizontal guide rail is connected with the sliding block.

[0020] In some embodiments, the sliding block is provided with a fixing hole, and the horizontal movement mounting mechanism further comprises a fastener for penetrating the fixing hole and abutting against the first horizontal guide rail to fix the sliding block.

[0021] In some embodiments, the clamp is provided with a mounting groove for mounting the eddy current probe.

[0022] The application also discloses a nuclear power plant workpiece grooving defect detection device comprising the eddy current probe clamping device of any of the above embodiments and an eddy current probe mounted on the clamp of the eddy current probe clamping device.

[0023] The application has the following beneficial effects: when the eddy current probe clamping device is applied, the eddy current probe can be mounted on the clamp of the horizontal movement mounting mechanism, the first lifting mechanism and the second lifting mechanism are adjusted, and then the height of the clamp is adjusted, the distance between the eddy current probe and the workpiece grooving defect is adjusted to a certain size, the clamp is pushed to move along with the first horizontal guide rail and / or the second horizontal guide rail, the eddy current probe can horizontally translate in the plane, the detection of the workpiece grooving defect in the whole plane is realized, compared with the handheld eddy current probe detection of the grooving defect, the influence of the hand shaking of the operator on the detection stability of the eddy current probe is avoided, the parallelism between the eddy current probe and the grooving defect can be ensured, and the detection stability and detection precision of the eddy current probe are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the utility model, the utility model will be further described below in conjunction with the drawings and embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.The drawings include:

[0025] Figure 1 It is one of the structure schematic diagram of eddy current probe clamping device in some embodiments of the utility model;

[0026] Figure 2 It is the second structure schematic diagram of eddy current probe clamping device in some embodiments of the utility model;

[0027] Figure 3 It is the structure schematic diagram of first mounting block in some embodiments of the utility model;

[0028] Figure 4 It is the structure schematic diagram of second mounting block in some embodiments of the utility model;

[0029] Figure 5 It is one of the exploded view of horizontal movement installation mechanism in some embodiments of the utility model;

[0030] Figure 6 It is the second exploded view of horizontal movement installation mechanism in some embodiments of the utility model. DETAILED DESCRIPTION

[0031] In order to have more clear understanding of the technical features, object and effect of the utility model, now the specific implementation of the utility model will be described in detail by comparing the drawings, it needs to be understood in the following description, "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail" and other directions or position relations are based on the direction or position relation shown in the drawings, with the particular direction configuration and operation, only for the convenience of describing the technical scheme, and not the device or element indicated must have the particular direction, therefore can not be understood as the limitation to the utility model.

[0032] It should be noted that, unless otherwise explicitly specified and limited, the terms such as "mounting", "connecting", "connecting", "fixing", "arranging" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or one or more intervening elements can be present. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features.

[0033] In the following description, specific details such as specific system structures, techniques, etc. are presented in order to facilitate a thorough understanding of the embodiments of the present application for the purpose of explanation, rather than for the purpose of limitation. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits and methods are omitted to avoid unnecessary details that hinder the description of the present application.

[0034] Referring to Figures 1 to 6 The utility model discloses a kind of vortex probe clamping devices, including first lifting mechanism 10, second lifting mechanism 20 and horizontal movement installation mechanism 30.

[0035] As Figure 1 And Figure 2 As shown in the drawing, the first lifting mechanism 10 includes a first base 11, a first support plate 12, a first top plate 13, a first guide rail 14, a first threaded guide rail 15, a first bearing 16, a first mounting block 17 and a first gear piece 18. The first base 11 and the first top plate 13 are oppositely arranged at the two ends of the first support plate 12. The first guide rail 14 connects the first base 11 and the first top plate 13. The first threaded guide rail 15 connects the first base 11 and the first top plate 13. The first bearing 16 is installed on the first base 11, and the first bearing 16 is connected with the lower part of the first threaded guide rail 15. The first mounting block 17 is connected with the first guide rail 14 and the first threaded guide rail 15. The first gear piece 18 is connected with the upper end of the first threaded guide rail 15.

[0036] In the present embodiment, the first base 11 is substantially in a plate structure, the first base 11 is provided with a first bearing seat 111 for mounting the first bearing 16, the bottom surface of the first base 11 can be further provided with a first anti-skid pad 112, which can be but not limited to a rubber pad.

[0037] The first bearing seat 111 can be substantially in a cuboid structure, the first support plate 12 is substantially in a rectangular plate structure, the lower end of the first support plate 12 is connected with the first bearing seat 111 through a first fastener, which includes but is not limited to a bolt or a screw. The first top plate 13 can be a flat plate or a cuboid structure, the first top plate 13 can be arranged in parallel opposite to the first base 11, the first top plate 13 is connected with the upper end of the first support plate 12 through a second fastener, which includes but is not limited to a bolt or a screw.

[0038] The first guide rail 14 can be substantially in a round rod shape, the axial ends of the first guide rail 14 can be connected with the first bearing seat 111 and the first top plate 13 respectively, and the first guide rail 14 is arranged through the first mounting block 17. The number of the first guide rail 14 is two, the two first guide rails 14 are oppositely arranged on both sides of the first threaded guide rail 15, and the first guide rail 14 can be used for guiding and limiting the first mounting block 17.

[0039] The first threaded guide rail 15 can be a threaded rod, the lower end of the first threaded guide rail 15 is mounted in the first bearing 16, the upper end of the first threaded guide rail 15 can be arranged through the first top plate 13 to be connected with the first gear member 18, and the first threaded guide rail 15 is arranged through the first mounting block 17.

[0040] In combination Figures 1 to 3 The first mounting block 17 is provided with a first mounting hole 171 for the first guide rail 14 to pass through and a first threaded hole 172 for the first threaded guide rail 15 to pass through, the number and position of the first mounting hole 171 correspond to the number and position of the first guide rail 14, and the inner cavity of the first mounting hole 171 can not be provided with internal threads. When the first threaded guide rail 15 rotates forward or reversely, the first mounting block 17 is limited by the first guide rail 14, so that the relative rotation of the first threaded guide rail 15 and the first mounting block 17 or drives the first mounting block 17 to move up and down along the axial direction of the first threaded guide rail 15, thereby adjusting the height position of the first mounting block 17.

[0041] In some embodiments, the first gear member 18 includes a first gear 181 connected to the upper end of the first threaded guide rail 15, and a first operation handle 182 connected to the axial upper surface of the first gear 181, when the first operation handle 182 is rotated by a worker, the first gear 181 can be driven to rotate, and the first gear 181 drives the first threaded guide rail 15 to rotate. Of course, in other embodiments, the first gear member 18 can not be provided, and the first lifting mechanism 10 can include a first driving member connected to the first threaded guide rail 15. The first driving member can include but is not limited to a driving motor, for example, a servo motor, which has a forward and reverse rotation function and high driving precision.

[0042] Similarly, referring to Figure 1 and Figure 2 , the second lifting mechanism 20 includes a second base 21, a second support plate 22, a second top plate 23, a second guide rail 24, a second threaded guide rail 25, a second bearing 26, a second mounting block 27, and a second gear member 28. The second support plate 22 is arranged opposite to the first support plate 12, the second base 21 and the second top plate 23 are arranged opposite to the two ends of the second support plate 22, the second guide rail 24 connects the second base 21 and the second top plate 23, the second threaded guide rail 25 connects the second base 21 and the second top plate 23, the second bearing 26 is installed on the second base 21 and connected to the lower part of the second threaded guide rail 25, the second mounting block 27 is connected to the second guide rail 24 and the second threaded guide rail 25, the second gear member 28 is connected to the upper end of the second threaded guide rail 25, and the second gear member 28 is connected to the first gear member 18 through a chain 29 (or a hinge), so that the lifting speed of the first lifting mechanism 10 and the second lifting mechanism 20 can be controlled to be the same.

[0043] In the present embodiment, the second base 21 is generally in the form of a plate structure, and the second base 21 is provided with a second bearing seat 211 for mounting the second bearing 26. The bottom surface of the second base 21 can also be provided with a second anti-skid pad 212, which can include but is not limited to a rubber pad.

[0044] The second bearing seat 211 can be generally in the form of a square body structure, and the second support plate 22 can be generally in the form of a rectangular plate structure. The lower end of the second support plate 22 is connected to the second bearing seat 211 through a third fastener, which can include but is not limited to a bolt or a screw. The second top plate 23 can be in the form of a flat plate or a square body structure, and can be arranged opposite to the second base 21. The upper end of the second top plate 23 is connected to the second support plate 22 through a fourth fastener, which can include but is not limited to a bolt or a screw.

[0045] The second guide rail 24 can be roughly rod-shaped, with its axial ends respectively connected to the second bearing seat 211 and the second top plate 23. The second guide rail 24 is disposed through the second mounting block 27. There are two second guide rails 24, which are disposed on opposite sides of the second threaded guide rail 25. The second guide rails 24 can be used to guide and limit the second mounting block 27.

[0046] The second threaded guide rail 25 can be a screw, the lower end of the second threaded guide rail 25 is installed in the second bearing 26, the upper end of the second threaded guide rail 25 can be passed through the second top plate 23 to connect with the second gear member 28, and the second threaded guide rail 25 is passed through the second mounting block 27.

[0047] Combine Figure 1 、 Figure 2 and Figure 4 The second mounting block 27 is provided with a second mounting hole 271 for the second guide rail 24 to pass through and a second threaded hole 272 for the second threaded guide rail 25 to pass through. The number and location of the second mounting holes 271 correspond to the number and location of the second guide rail 24. The inner cavity of the second mounting hole 271 may not be provided with an internal thread. When the second threaded guide rail 25 rotates forward or reverse, since the second mounting block 27 is limited by the second guide rail 24, the relative rotation of the second threaded guide rail 25 and the second mounting block 27 or the upward and downward movement of the second mounting block 27 along the axial direction of the second threaded guide rail 25 can adjust the height position of the second mounting block 27. Furthermore, the threads on the second threaded guide rail 25 and the threads on the first threaded guide rail 15 can be selected and set according to actual needs. The spiral direction and pitch can also be selected and set according to actual needs and are not specifically limited here.

[0048] In some embodiments, the second gear member 28 includes a second gear 281 connected to the upper end of the second threaded guide rail 25, and a second operating handle 282 connected to the axial upper surface of the second gear 281, and the chain 29 connects the first gear 181 and the second gear 281.

[0049] When the operator rotates the second operating handle 282, the second gear 281 is driven to rotate, and the second gear 281 drives the second threaded guide rail 25 to rotate. Of course, in other embodiments, the second gear 28 may not be provided, and the second lifting mechanism 20 may include a second driving member connected to the second threaded guide rail 25. The second driving member may include but is not limited to a driving motor, such as a servo motor. The servo motor has forward and reverse rotation functions and high driving precision.

[0050] like Figures 1 to 6As shown, in some embodiments, the horizontal moving installation mechanism 30 comprises a first horizontal guide rail 31, a second horizontal guide rail 32, and a clamp 33 for installing the eddy current probe, both ends of the length direction of the first horizontal guide rail 31 are connected with the first mounting block 17 and the second mounting block 27 respectively, so that the first horizontal guide rail 31 can follow the first mounting block 17 and the second mounting block 27 to rise and fall, thereby adjusting the distance between the eddy current probe and the slotting defect of the workpiece.

[0051] The second horizontal guide rail 32 is movably installed on the first horizontal guide rail 31 along the length direction of the first horizontal guide rail 31, and the length direction of the second horizontal guide rail 32 is arranged perpendicular to the length direction of the first horizontal guide rail 31. The clamp 33 is movably installed on the second horizontal guide rail 32 along the length direction of the second horizontal guide rail 32, thereby realizing the measurement of the slotting defect of the entire workpiece plane by the eddy current probe on the clamp 33.

[0052] Further, the first mounting block 17 is provided with a first recess 17a on the side facing the second mounting block 27, the second mounting block 27 is provided with a second recess 27a on the side facing the first mounting block 17, and both ends of the length direction of the first horizontal guide rail 31 are connected with the first recess 17a and the second recess 27a respectively.

[0053] Further, both ends of the length direction of the first horizontal guide rail 31 are respectively provided with a plurality of first connecting holes 311 and a plurality of second connecting holes 312 (as shown in Figure 5 and Figure 6 As shown, the wall surface of the first recess 17a where the first mounting block 17 is located is provided with a plurality of first fastening holes 173 (as shown in Figure 3 As shown, the wall surface of the second recess 27a where the second mounting block 27 is located is provided with a plurality of second fastening holes 273 (as shown in Figure 4 When both ends of the length direction of the first horizontal guide rail 31 are located in the first recess 17a and the second recess 27a respectively, the first connecting hole 311 and the first fastening hole 173 are oppositely and continuously arranged, the second connecting hole 312 and the second fastening hole 213 are oppositely and continuously arranged, the horizontal moving installation mechanism 30 comprises a first fixing member and a second fixing member, the first fixing member is threaded through the first fastening hole 173 and the first connecting hole 311, and the first fixing member is threaded through the second fastening hole 273 and the second connecting hole 312, thereby fixing the first horizontal guide rail 31, and the first fixing member and the second fixing member include but are not limited to bolts or screws. Of course, in other embodiments, the first horizontal guide rail 31 and the first mounting block 17 and the second mounting block 27 can be an integral structure.

[0054] As shown in Figure 1 and Figure 2As shown, in some embodiments, the horizontal moving mounting mechanism 30 further comprises a sliding block 34 movably mounted on the first horizontal guide rail 31 along the length direction of the first horizontal guide rail 31, and the second horizontal guide rail 32 is connected with the sliding block 34. The sliding block 34 can have a through cavity to be sleeved on the first horizontal guide rail 31.

[0055] In combination Figure 5 And Figure 6 As shown, the sliding block 34 is provided with a fixing hole 341, and the horizontal moving mounting mechanism 30 further comprises a fastener 342 for penetrating the fixing hole 341 and abutting against the first horizontal guide rail 31 to fix the sliding block 34, so as to fix the sliding block 34 at a suitable position on the first horizontal guide rail 31. The fastener 342 includes but is not limited to a bolt or a screw.

[0056] Further, the second horizontal guide rail 32 is provided with a plurality of first limiting holes 321, and the bottom of the sliding block 34 is provided with a plurality of second limiting holes 343 arranged opposite to the first limiting holes 321. The horizontal moving mounting mechanism 30 further comprises a plurality of bolts or screws for connecting the first limiting holes 321 and the second limiting holes 343 to connect and fix the second horizontal guide rail 32 and the sliding block 34. Of course, in other embodiments, the second horizontal guide rail 32 and the sliding block 34 can also be an integral structure, which is not specifically limited here.

[0057] In some embodiments, the clamp 33 can be substantially in a block structure, and the upper end of the clamp 33 can be provided with a sliding groove which is interactively connected with the second horizontal guide rail 32, and the two can be limited by concave-convex structures. Further, the clamp 33 is provided with an installation groove 33a for installing the eddy current probe. Preferably, the transverse section of the second horizontal guide rail 32 is in an I-shaped type, and the clamp 33 has an I-shaped slot, and the two can be movably fitted together.

[0058] In this embodiment, when the eddy current probe holding device is applied, the eddy current probe can be installed on the clamp 33 of the horizontal moving mounting mechanism 30, the first lifting mechanism 10 and the second lifting mechanism 20 are adjusted, and then the height of the clamp 33 is adjusted, the distance between the eddy current probe and the slotting defect of the workpiece is adjusted to a certain size, the clamp 33 is pushed to move along with the first horizontal guide rail 31 and / or the second horizontal guide rail 32, so that the eddy current probe can horizontally translate in the plane, and the detection of the slotting defect of the entire plane of the workpiece is realized. Compared with the hand-held eddy current probe detection of the slotting defect, the influence of the hand shaking of the operator on the detection stability of the eddy current probe is avoided, the parallelism between the eddy current probe and the slotting defect can be ensured, and the detection stability and detection precision of the eddy current probe are improved. On the other hand, without contact measurement, the workpiece can be effectively prevented from being damaged by measurement.

[0059] Understandably, the eddy current probe clamping device can be used for the installation of the eddy current probe, can replace manual detection, and can solve the technical problems of easy fatigue, distraction, poor detection accuracy and consistency, low detection efficiency, and susceptibility to detection environment during manual detection.

[0060] The eddy current probe clamping device can achieve the lifting movement and horizontal movement of the eddy current probe, realize the detection of the entire plane of the workpiece for the groove defect, and on the other hand, without contact measurement, the workpiece is prevented from being damaged by measurement. The eddy current probe clamping device is suitable for groove defect detection of different sizes and depths, and has a high application range.

[0061] The application also discloses a nuclear power plant workpiece groove defect detection equipment which comprises the eddy current probe clamping device of the above embodiment and an eddy current probe (eddy current sensor) installed on the clamp 33 of the eddy current probe clamping device.

[0062] In the embodiment, when the nuclear power plant workpiece groove defect detection equipment is used for detecting the groove defect, the eddy current probe is installed on the clamp 33 of the horizontal movement installation mechanism 30 of the eddy current probe clamping device, the first lifting mechanism 10 and the second lifting mechanism 20 are adjusted, then the height of the clamp 33 is adjusted, the distance between the eddy current probe and the groove defect of the workpiece is adjusted to a certain size, the clamp 33 is pushed to move along the first horizontal guide rail 31 and / or the second horizontal guide rail 32, the eddy current probe can horizontally translate in the plane, the detection of the entire plane of the workpiece for the groove defect is realized, compared with the manual detection of the groove defect, the influence of the hand shaking of the operator on the detection stability of the eddy current probe is avoided, the parallelism between the eddy current probe and the groove defect can be ensured, and the detection stability and detection accuracy of the eddy current probe are improved. On the other hand, without contact measurement, the workpiece can be effectively prevented from being damaged by measurement.

[0063] Understandably, the eddy current probe clamping device can be used for the installation of the eddy current probe, can replace manual detection, and can solve the technical problems of easy fatigue, distraction, poor detection accuracy and consistency, low detection efficiency, and susceptibility to detection environment during manual detection.

[0064] The eddy current probe clamping device can achieve the lifting movement and horizontal movement of the eddy current probe, realize the detection of the entire plane of the workpiece for the groove defect, and on the other hand, without contact measurement, the workpiece is prevented from being damaged by measurement. The eddy current probe clamping device is suitable for groove defect detection of different sizes and depths, and has a high application range.

[0065] It can be understood that the above embodiments only express the preferred embodiments of the utility model, the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope; it should be pointed out that for ordinary skilled person in the art, the above technical features can be freely combined without departing from the concept of the utility model, and a number of modifications and improvements can be made, which belong to the protection scope of the utility model; therefore, any equivalent transformation and modification within the scope of the utility model patent claim should belong to the scope of the utility model patent claim.

Claims

1. An eddy current probe holder apparatus, characterized by, The first lifting mechanism (10), the second lifting mechanism (20) and the horizontal moving installation mechanism (30) are included. The first lifting mechanism (10) includes a first base (11), a first support plate (12), a first top plate (13), a first guide rail (14), a first threaded guide rail (15), a first bearing (16), a first mounting block (17) and a first gear part (18). The first base (11) and the first top plate (13) are oppositely arranged at the two ends of the first support plate (12). The first guide rail (14) connects the first base (11) and the first top plate (13). The first threaded guide rail (15) connects the first base (11) and the first top plate (13). The first bearing (16) is mounted on the first base (11) and connected with the lower part of the first threaded guide rail (15). The first mounting block (17) is connected with the first guide rail (14) and the first threaded guide rail (15). The first gear part (18) is connected with the upper end of the first threaded guide rail (15). The second lifting mechanism (20) includes a second base (21), a second support plate (22), a second top plate (23), a second guide rail (24), a second threaded guide rail (25), a second bearing (26), a second mounting block (27) and a second gear part (28). The second support plate (22) is oppositely arranged with the first support plate (12). The second base (21) and the second top plate (23) are oppositely arranged at the two ends of the second support plate (22). The second guide rail (24) connects the second base (21) and the second top plate (23). The second threaded guide rail (25) connects the second base (21) and the second top plate (23). The second bearing (26) is mounted on the second base (21) and connected with the lower part of the second threaded guide rail (25). The second mounting block (27) is connected with the second guide rail (24) and the second threaded guide rail (25). The second gear part (28) is connected with the upper end of the second threaded guide rail (25) and connected with the first gear part (18) through a chain (29). The horizontal moving installation mechanism (30) includes a first horizontal guide rail (31), a second horizontal guide rail (32) and a clamp (33) for installing a vortex probe. The two ends of the length direction of the first horizontal guide rail (31) are respectively connected with the first mounting block (17) and the second mounting block (27). The second horizontal guide rail (32) is movably installed on the first horizontal guide rail (31) along the length direction of the first horizontal guide rail (31). The length direction of the second horizontal guide rail (32) is perpendicular to the length direction of the first horizontal guide rail (31). The clamp (33) is movably installed on the second horizontal guide rail (32) along the length direction of the second horizontal guide rail (32).

2. The eddy current probe holder apparatus of claim 1, wherein, The first mounting block (17) is provided with a first mounting hole (171) for the first guide rail (14) to pass through and a first threaded hole (172) for the first threaded guide rail (15) to pass through; The second mounting block (27) is provided with a second mounting hole (271) for the second guide rail (24) to pass through and a second threaded hole (272) for the second threaded guide rail (25) to pass through.

3. The eddy current probe holder apparatus of claim 1, wherein, The number of the first guide rails (14) is two, and the two first guide rails (14) are oppositely arranged on the two sides of the first threaded guide rail (15); The number of the second guide rails (24) is two, and the two second guide rails (24) are oppositely arranged on the two sides of the second threaded guide rail (25).

4. The eddy current probe holder apparatus of claim 1, wherein, The first base (11) is provided with a first bearing seat (111) for mounting the first bearing (16); The second base (21) is provided with a second bearing seat (211) for mounting the second bearing (26).

5. The eddy current probe holder of claim 1, wherein, The first gear member (18) comprises a first gear (181) connected to the upper end of the first threaded guide rail (15) and a first operation handle (182) connected to the axial upper surface of the first gear (181); The second gear member (28) comprises a second gear (281) connected to the upper end of the second threaded guide rail (25) and a second operation handle (282) connected to the axial upper surface of the second gear (281); The chain (29) connects the first gear (181) and the second gear (281).

6. The eddy current probe holder apparatus of claim 1, wherein, The first mounting block (17) is provided with a first groove (17a) on the side facing the second mounting block (27), the second mounting block (27) is provided with a second groove (27a) on the side facing the first mounting block (17), and the two ends of the first horizontal guide rail (31) in the length direction are connected to the first groove (17a) and the second groove (27a) respectively.

7. The eddy current probe holder apparatus of claim 1, wherein, The horizontal movement mounting mechanism (30) further comprises a sliding block (34) movably mounted on the first horizontal guide rail (31) in the length direction of the first horizontal guide rail (31), and the second horizontal guide rail (32) is connected to the sliding block (34).

8. The eddy current probe holding device of claim 7, wherein The sliding block (34) is provided with a fixing hole (341), and the horizontal movement mounting mechanism (30) further comprises a fastener (342) for passing through the fixing hole (341) and abutting against the first horizontal guide rail (31) to fix the sliding block (34).

9. The eddy current probe holder apparatus of claim 1, wherein, The clamp (33) is provided with a mounting groove (33a) for mounting an eddy current probe.

10. A nuclear power plant workpiece notch defect detection apparatus characterized by, The eddy current probe clamping device comprises the eddy current probe clamping device according to any one of claims 1 to 9, and an eddy current probe mounted on the clamp (33) of the eddy current probe clamping device.

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