Ray transillumination detection arrangement tool for inner receiver of helicopter engine

Abstract

The utility model discloses a ray transillumination detection arrangement tool for an inner casing of a helicopter engine, and relates to the technical field of product ray detection. A support frame; and a rotating disc. According to the utility model, one end of the detected workpiece is locked through the fixing piece on the rotating disc, the bearing assembly supports the inner wall of the detected workpiece, and the acquisition film can be arranged on the bearing assembly, so that the wall seam condition of the detected workpiece is acquired; and then one end of the rotation adjusting assembly and one end of the second limiting assembly integrally drive the bearing assembly to cooperate with the rotating disc to drive the detected workpiece to perform detection position adjustment, so that the detection position adjustment work of the detected workpiece is completed. The detection arrangement tool does not need multiple persons to cooperate for detection work, and the whole detection process is simple and convenient. The defect that in the prior art, transillumination arrangement detection of the helicopter engine inner case is extremely inconvenient is effectively overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to product ray detection technical field especially relates to a helicopter engine inner casing ray transillumination detection arrangement tool. BACKGROUND

[0002] At present, when the helicopter engine inner casing is detected by X ray, the helicopter engine inner casing is annular structure, when the helicopter engine inner casing is detected by ray, generally through the wood block product is arranged and is arranged ray transillumination, and in order to prevent product dumping, at least by two people, 1 person will product support, 1 person will be beside the wood block and place in product side, again to the detection area place film and arrange detection, thereby making the helicopter engine inner casing transillumination arrangement detection extremely inconvenient, leading to low detection efficiency. UTILITY MODEL CONTENTS

[0003] The utility model discloses a helicopter engine inner casing ray transillumination detection arrangement tool, which solves the problem of inconvenient transillumination arrangement detection of the helicopter engine inner casing in the prior art.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] The utility model discloses a helicopter engine inner casing ray transillumination detection arrangement tool, which solves the problem of inconvenient transillumination arrangement detection of the helicopter engine inner casing in the prior art.

[0006] Base;

[0007] Support frame, the support frame sets up in one side of the base, and the setting direction of the support frame is perpendicular to the setting direction of the base;

[0008] Rotary disc, the rotary disc sets up at one side of the support frame, and the rotary disc is parallel with the support frame, and a plurality of fixed parts are arranged on the side of the rotary disc away from the support frame, and the plurality of fixed parts are distributed along the annular array of the rotary disc, and the fixed part is used for locking and supporting one end of the workpiece to be detected in cooperation with the rotary disc;

[0009] Rotary adjustment assembly, the rotary adjustment assembly is in turn penetrated through the support frame and the rotary disc, one end of the rotary adjustment assembly is rotationally connected with the support frame, and the other end of the rotary adjustment assembly is connected with the rotary disc, and the setting direction of the rotary adjustment assembly is parallel to the setting direction of the base;

[0010] A first limiting component is arranged on the support frame, and is located on one side of the rotating disc. The limiting direction of the first limiting component is perpendicular to the outer periphery of the rotating disc. The first limiting component is used for abutting and limiting the rotating disc to rotate.

[0011] A bearing component is arranged on the rotating disc, and is located on the side away from the support frame. The bearing component is used for bearing and supporting the inner wall of the workpiece under inspection, and collecting the condition of the inner wall of the workpiece under inspection.

[0012] A second limiting component penetrates the rotating adjusting component. One end of the second limiting component is connected with the bearing component, and the other end of the second limiting component is detachably connected with the rotating adjusting component.

[0013] In some possible solutions, the rotating adjusting component comprises:

[0014] A rotating sleeve penetrates the support frame and the rotating disc in sequence. A fixing sleeve is arranged outside the rotating sleeve. The rotating sleeve is rotatably connected with the support frame through the fixing sleeve.

[0015] A first locking disc is arranged on one side of the rotating disc, and is located away from the support frame. The first locking disc is fixedly connected with the rotating disc.

[0016] A second locking disc is arranged on one end of the rotating sleeve penetrating the rotating disc. The second locking disc is located on the side of the rotating disc away from the support frame. The second locking disc is connected with the first locking disc.

[0017] In some possible solutions, the first limiting component comprises:

[0018] A limiting frame is in an inverted L shape. One end of the limiting frame is detachably arranged on the support frame. The other end of the limiting frame is located above the rotating disc.

[0019] A limiting rod penetrates the other end of the limiting frame. The arrangement direction of the limiting rod is perpendicular to the outer periphery of the rotating disc. The limiting rod is threadedly connected with the limiting frame.

[0020] A limiting block is arranged on one side of the rotating disc. A limiting groove is arranged on the limiting block. The limiting groove is clamped on the outer periphery of the rotating disc. The limiting block is rotatably connected with the limiting rod away from the limiting groove.

[0021] In some possible solutions, the bearing component comprises:

[0022] A rotating shaft, one end of the rotating shaft penetrates the rotating sleeve, the first locking disc and the second locking disc in sequence and extends to a side away from the support frame, and the rotating shaft is rotationally connected in the rotating sleeve, the first locking disc and the second locking disc;

[0023] A locking piece, the locking piece is in the form of a plate, one end of the locking piece is sleeved on the end of the rotating shaft extending away from the support frame, and the arrangement direction of the locking piece is perpendicular to the arrangement direction of the rotating shaft;

[0024] A bearing plate, the bearing plate is in the form of an arc, one end of the bearing plate is arranged at the other end of the locking piece, the bearing plate is rotationally connected with the rotating sleeve through the locking piece, and the arc-shaped side of the bearing plate is located inside the workpiece to be detected.

[0025] In some possible solutions, the locking piece comprises:

[0026] A first connecting plate, one end of the first connecting plate is sleeved on the rotating shaft, and a plurality of locking holes are arranged on the first connecting plate;

[0027] A second connecting plate, the second connecting plate is arranged in parallel with the first connecting plate, a strip-shaped hole is arranged on the second connecting plate, the strip-shaped hole is arranged at a position corresponding to the plurality of locking holes, and one end of the second connecting plate is arranged on one end of the bearing plate;

[0028] A connecting piece, the connecting piece penetrates the strip-shaped hole and the locking hole in sequence, and the connecting piece is threadedly connected with the locking hole.

[0029] In some possible solutions, the rotating sleeve is provided with a locking hole on the end away from the rotating disc; and the second limiting assembly comprises:

[0030] A clamping piece, one end of the clamping piece is connected in abutment with the rotating shaft through the locking hole, and the clamping piece is threadedly connected with the locking hole.

[0031] The utility model discloses the beneficial effects are:

[0032] The utility model discloses a fixed piece on the rotating disc is locked to the one end of the workpiece of being examined, and the inner wall of the workpiece of being examined is supported to bearing assembly simultaneously, and the film of gathering can be set up on bearing assembly, and the wall gap condition of the workpiece of being examined is gathered, and then through the rotation adjusting assembly and the one end integral drive bearing assembly of second limit component cooperation rotating disc drive workpiece of being examined and carry out detection position adjustment, complete the detection position adjustment work of workpiece of being examined. That is, the detection arrangement tool does not need many people to cooperate detection work, and the whole detection process is simple. That is, effectively realize the solution to the inconvenient shortcomings of the helicopter engine inner casing penetration arrangement detection in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a kind of helicopter engine inner casing ray penetration detection arrangement tool's use schematic diagram provided in the utility model embodiment;

[0034] Figure 2 It is a kind of helicopter engine inner casing ray penetration detection arrangement tool's overall structure schematic diagram provided in the utility model embodiment;

[0035] Figure 3 It is the structure explosion schematic diagram (first visual angle) of rotation adjusting assembly in a kind of helicopter engine inner casing ray penetration detection arrangement provided in the utility model embodiment;

[0036] Figure 4 It is the structure explosion schematic diagram (second visual angle) of rotation adjusting assembly in a kind of helicopter engine inner casing ray penetration detection arrangement provided in the utility model embodiment;

[0037] Figure 5 It is the structure explosion schematic diagram of first limit component in a kind of helicopter engine inner casing ray penetration detection arrangement provided in the utility model embodiment.

[0038] Marked in the figure as follows:

[0039] 1, base;11, support frame;12, fixed sleeve;

[0040] 2, rotation adjusting assembly;21, rotating disc;211, fixed piece;22, rotating sleeve;221, first locking disc;222, second locking disc;

[0041] 3, first limit component;31, limit block;32, limit rod;33, limit frame;

[0042] 4, workpiece of being examined;

[0043] 5, bearing assembly;51, bearing plate;52, first connecting plate;521, second connecting plate;522, connecting piece;53, rotating shaft;531, clamping piece. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing", etc. should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In addition, if the present application embodiments involve "first", "second", etc. description, the "first", "second", etc. description is only for description purpose, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0048] Reference Figures 1 to 5The utility model discloses in this embodiment in order to realize the solution existing in prior art to the helicopter engine inner engine case penetrates the arrangement detection extremely inconvenient shortcoming, here provides a kind of helicopter engine inner engine case ray penetrates detection arrangement tool, and the detected workpiece 4 (i.e. helicopter engine inner engine case) is set on the detection arrangement tool, and the detection arrangement tool includes: base 1, support frame 11, rotating disc 21, rotation adjustment assembly 2, first limiting assembly 3, bearing assembly 5 and second limiting assembly.The base 1 is plate-like, and it is horizontally arranged on ground, to realize forming a detection platform.The support frame 11 is arranged at one side of the base 1, and the setting direction of the support frame 11 is perpendicular to the setting direction of the base 1, to realize that the support frame 11 and the base 1 form vertical support.The rotating disc 21 is arranged at one side of the support frame 11, and the rotating disc 21 is parallelly arranged with the support frame 11, and a plurality of fixed parts 211 are arranged on the side of the rotating disc 21 away from the support frame 11, and a plurality of fixed parts 211 are distributed along the annular array of the rotating disc 21, and the fixed part 211 is used to cooperate rotating disc 21 and lock the one end of the detected workpiece 4 and support.The rotation adjustment assembly is in turn penetrated through the support frame 11 and the rotating disc 21, one end of the rotation adjustment assembly is rotationally connected with the support frame 11, and the other end of the rotation adjustment assembly is connected with the rotating disc 21, and the setting direction of the rotation adjustment assembly is parallel to the setting direction of the base 1.That is, let rotation adjustment assembly drive rotating disc 21 rotate on support frame 11, cooperate rotating disc 21 and drive detected workpiece 4 to adjust detection position.The first limiting assembly 3 is arranged on the support frame 11, and the first limiting assembly 3 is located at one side of the rotating disc 21, and the limiting direction of the first limiting assembly 3 is perpendicular to the outer circumference of the rotating disc 21, and the first limiting assembly 3 is used to abut and limit rotating disc 21 to rotate.The bearing assembly 5 is arranged on the rotating disc 21, and the bearing assembly 5 is located on the side away from the support frame 11, and the bearing assembly 5 is used to bear and support the inner wall of the detected workpiece 4, and simultaneously collect the inner wall condition of the detected workpiece 4, so as to cooperate the fixed part 211 on the rotating disc 21 to fix the detected workpiece 4.The second limiting assembly is penetrated through the rotation adjustment assembly 2, one end of the second limiting assembly is connected with the bearing assembly 5, and the other end of the second limiting assembly is detachably connected with the rotation adjustment assembly 2.That is, the second limiting assembly is penetrated through the rotation adjustment assembly 2 and rotates in the interior of the rotation adjustment assembly 2, one end of the second limiting assembly drives bearing assembly 5 to cooperate rotating disc 21 and drives detected workpiece 4 to adjust detection position, when detection position does not need to be adjusted, the other end of the second limiting assembly is connected with the rotation adjustment assembly 2 by limiting, to realize that the position of bearing assembly 5 is fixed.That is, in the embodiment, one end of the workpiece 4 is locked by rotating the fixing member 211 on the rotating disc 21, and the inner wall of the workpiece 4 is supported by the bearing assembly 5, and the film can be arranged on the bearing assembly 5 to collect the wall joint condition of the workpiece 4, and then the detection position of the workpiece 4 is adjusted by rotating the rotating adjusting assembly 2 and one end of the second limiting assembly to drive the bearing assembly 5 to cooperate with the rotating disc 21 to drive the workpiece 4 to adjust the detection position of the workpiece 4. That is, the detection arrangement tool does not need to be cooperated by multiple people to detect the workpiece, and the whole detection process is simple. That is, the existing technical problem of inconvenient arrangement and detection of the helicopter engine inner casing is effectively solved.

[0049] Referring to Figure 3 and Figure 4 In the embodiment, in order to rotate the rotating disc 21 to adjust the detection position of the workpiece 4, the rotating adjusting assembly 2 comprises a rotating sleeve 22, a first locking disc 221 and a second locking disc 222. One end of the rotating sleeve 22 penetrates the support frame 11 and the rotating disc 21 in sequence, and the rotating sleeve 22 is provided with a fixed sleeve 12 outside, and the rotating sleeve 22 is rotatably connected with the support frame 11 through the fixed sleeve 12, that is, the fixed sleeve 12 is fixedly connected with the support frame 11, and the rotating sleeve 22 rotates in the inside of the fixed sleeve 12. The first locking disc 221 is arranged on one side of the rotating disc 21, and is located away from the support frame 11, and the first locking disc 221 is fixedly connected with the rotating disc 21. The second locking disc 222 is arranged on one end of the rotating sleeve 22 penetrating the rotating disc 21, and is located on the side of the rotating disc 21 away from the support frame 11, and the second locking disc 222 is connected with the first locking disc 221. That is, the rotating disc 21 is detachably connected with the rotating sleeve 22 through the first locking disc 221 and the second locking disc 222, so as to rotate the rotating disc 21 by the rotating sleeve 22.

[0050] Referring to Figure 4 and Figure 5In the embodiment, in order to fix the adjusted position of the rotating disc 21, the first limiting assembly 3 comprises a limiting block 31, a limiting frame 33 and a limiting rod 32. The limiting frame 33 is in the shape of inverted L, one end of the limiting frame 33 is detachably arranged on the support frame 11 by bolts, and the other end of the limiting frame 33 is above the rotating disc 21. The limiting rod 32 penetrates the other end of the limiting frame 33, the setting direction of the limiting rod 32 is perpendicular to the outer periphery of the rotating disc 21, and the limiting rod 32 is threadedly connected with the limiting frame 33. The limiting block 31 is arranged on one side of the rotating disc 21, a limiting slot is arranged on the limiting block 31, the limiting slot is clamped on the outer periphery of the rotating disc 21, and the limiting block 31 is rotationally connected with the limiting rod 32 away from the limiting slot. That is, in the embodiment, the limiting slot on the limiting block 31 is tightly clamped on the rotating disc 21 by vertically moving the limiting rod 32, so as to limit the rotation of the rotating disc 21.

[0051] With reference to Figure 5In the embodiment, in order to facilitate the collection of the wall joint condition of the detected workpiece 4 by the film, the bearing assembly 5 comprises a bearing plate 51, a rotating shaft 53 and a locking member. One end of the rotating shaft 53 penetrates the rotating sleeve 22, the first locking disc 221 and the second locking disc 222 in sequence and extends to a side away from the support frame 11, and the rotating shaft 53 is rotationally connected in the rotating sleeve 22, the first locking disc 221 and the second locking disc 222. The locking member is plate-shaped, one end of the locking member is sleeved on the end of the rotating shaft 53 extending away from the support frame 11, and the setting direction of the locking member is perpendicular to the setting direction of the rotating shaft 53, so that the rotating shaft 53 drives the locking member to rotate. The bearing plate 51 is arc-shaped, one end of the bearing plate 51 is arranged at the other end of the locking member, the bearing plate 51 is rotationally connected with the rotating sleeve 22 through the locking member, the arc-shaped side of the bearing plate 51 is located in the interior of the detected workpiece 4, the bearing plate 51 can collect the wall joint condition of the detected workpiece 4 by arranging the film on the arc-shaped side, and the detected workpiece 4 can be detected and supported. In the embodiment, in order to realize the detection support of the bearing plate 51 on the detected workpiece 4 of different size specifications, the locking member comprises a first connecting plate 52, a second connecting plate 521 and a connecting member 522. One end of the first connecting plate 52 is sleeved on the rotating shaft 53, and a plurality of locking holes (not marked in the figure) are arranged on the first connecting plate 52. The second connecting plate 521 is arranged in parallel with the first connecting plate 52, a strip-shaped hole (not marked in the figure) is arranged on the second connecting plate 521, the strip-shaped hole is arranged at a position corresponding to the plurality of locking holes, and one end of the second connecting plate 521 is arranged on one end of the bearing plate 51. The connecting member 522 penetrates the strip-shaped hole and the locking hole in sequence, and the connecting member 522 is threadedly connected with the locking hole. That is, the first connecting plate 52 and the second connecting plate 521 are moved and expanded by the connecting member 522 in the strip-shaped hole and the locking position of the locking hole, the common length of the first connecting plate 52 and the second connecting plate 521 is adjusted, that is, the bearing height of the bearing plate 51 is adjusted, so that the detected workpiece 4 of different sizes can be detected and supported.

[0052] Referring to Figure 2 , Figure 3 and Figure 4In the embodiment, in order to realize that the bearing assembly 5 can be adjusted to bear and support the detection position of the detected workpiece 4, the rotating sleeve 22 is provided with a locking hole at one end away from the rotating disc 21, and the second limiting assembly is abutted with the rotating shaft 53 in the interior of the rotating sleeve 22 through the locking hole. Specifically, the second limiting assembly comprises a clamping piece 531, one end of the clamping piece 531 is abutted and connected with the rotating shaft 53 through the locking hole, and the clamping piece 531 is threadedly connected with the locking hole. That is, in the embodiment, after the bearing plate 51 is adjusted to rotate by the rotating shaft 53, the clamping piece 531 is abutted with the rotating shaft 53 in the interior of the rotating sleeve 22, the rotation of the rotating shaft 53 is limited, and the detection position adjustment of the bearing plate 51 and the limitation are realized.

[0053] In the embodiment, in order to facilitate observation of the detection position adjustment of the detected workpiece and overall reduction of the self weight of the arrangement tool, the rotating disc and the support frame are disc-shaped, and a plurality of openings (not marked in the figure) are arranged on the rotating disc and the support frame, the plurality of openings are respectively arranged in annular arrays on the rotating disc and the support frame, and the openings are used for observation of the detection position adjustment of the detected workpiece and overall reduction of the self weight of the arrangement tool.

[0054] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. An arrangement for ray transillumination detection of a helicopter engine inner casing, characterized in that, The utility model relates to a kind of rotating inspection device, including: Base; Support frame, the support frame is discoid, several openings are provided on the support frame, the support frame is set on one side of the base, the setting direction of the support frame is perpendicular to the setting direction of the base; Rotary disc, the rotary disc is set on one side of the support frame, the rotary disc is parallelly arranged with the support frame, several fixed parts are provided on the side of the rotary disc away from the support frame, several the fixed part is distributed along the annular array of rotary disc, the fixed part is used to cooperate rotary disc and the end of the workpiece to be inspected is locked and supported; Rotary adjustment assembly, the rotary adjustment assembly is sequentially penetrated through the support frame and the rotary disc, one end of the rotary adjustment assembly is rotatably connected with the support frame, the other end of the rotary adjustment assembly is connected with the rotary disc, and the setting direction of the rotary adjustment assembly is parallel to the setting direction of the base; First limiting component, the first limiting component is provided on the support frame, and the first limiting component is located on one side of the rotary disc, the limiting direction of the first limiting component is perpendicular to the outer circumference of the rotary disc, and the first limiting component is used to abut and limit the rotary disc to rotate; Bearing assembly, the bearing assembly is provided on the rotary disc, and the bearing assembly is located on the side away from the support frame, and the bearing assembly is used to support the inner wall of the workpiece to be inspected and simultaneously collect the inner wall condition of the workpiece to be inspected; Second limiting component, the second limiting component is penetrated through the rotary adjustment assembly, one end of the second limiting component is connected with the bearing assembly, and the other end of the second limiting component is detachably connected with the rotary adjustment assembly.

2. An arrangement for the radiographic inspection of a helicopter engine inner casing according to claim 1, characterized in that, The rotary adjustment assembly includes: Rotary sleeve, one end of the rotary sleeve is sequentially penetrated through the support frame and the rotary disc, and the outer sleeve of the rotary sleeve is provided with a fixed sleeve, and the rotary sleeve is rotatably connected with the support frame through the fixed sleeve; First locking disc, the first locking disc is provided on one side of the rotary disc, and the first locking disc is located away from the support frame, and the first locking disc is fixedly connected with the rotary disc; Second locking disc, the second locking disc is provided on one end of the rotary sleeve penetrated through the rotary disc, and the second locking disc is located on the side of the rotary disc away from the support frame, and the second locking disc is connected with the first locking disc.

3. An arrangement for the radiographic inspection of a helicopter engine inner casing according to claim 2, characterized in that, The first limiting component includes: Limiting frame, one end of the limiting frame is detachably provided on the support frame, and the other end of the limiting frame is located above the rotary disc; Limiting rod, the limiting rod is penetrated through the other end of the limiting frame, the setting direction of the limiting rod is perpendicular to the outer circumference of the rotary disc, and the limiting rod is threadedly connected with the limiting frame; Limiting block, the limiting block is provided on one side of the rotary disc, a limiting groove is provided on the limiting block, the limiting groove is clamped on the outer circumference of the rotary disc, and the limiting block is rotatably connected with the limiting rod away from the limiting groove.

4. An arrangement for the radiographic inspection of a helicopter engine inner casing according to claim 3, characterized in that, The bearing assembly includes: A rotating shaft, one end of the rotating shaft penetrates the rotating sleeve, the first locking disc and the second locking disc in sequence and extends to a side away from the support frame, and the rotating shaft is rotationally connected in the rotating sleeve, the first locking disc and the second locking disc; A locking piece, the locking piece is plate-shaped, one end of the locking piece is sleeved on one end of the rotating shaft extending away from the support frame, and the setting direction of the locking piece is perpendicular to the setting direction of the rotating shaft; A bearing plate, one end of the bearing plate is arranged on the other end of the locking piece, the bearing plate is rotationally connected with the rotating sleeve through the locking piece, and the arc-shaped side of the bearing plate is located inside the workpiece to be detected.

5. An arrangement for the radiographic inspection of a helicopter engine inner casing according to claim 4, characterized in that, The locking piece comprises: A first connecting plate, one end of the first connecting plate is sleeved on the rotating shaft, and a plurality of locking holes are arranged on the first connecting plate; A second connecting plate, the second connecting plate is arranged in parallel with the first connecting plate, a strip-shaped hole is arranged on the second connecting plate, the strip-shaped hole is arranged at a position corresponding to the plurality of locking holes, and one end of the second connecting plate is arranged on one end of the bearing plate; A connecting piece, the connecting piece penetrates the strip-shaped hole and the locking hole in sequence, and the connecting piece is threadedly connected with the locking hole.

6. An arrangement for the radioscopic detection of a helicopter engine inner casing according to claim 5, characterized in that, The rotating sleeve is provided with a locking hole on the side away from the rotating disc; and the second limiting component comprises: A clamping piece, one end of the clamping piece is abuttingly connected with the rotating shaft through the locking hole, and the clamping piece is threadedly connected with the locking hole.

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