Frame integral expansion joint positioning component and frame integral expansion joint equipment

Abstract

The present disclosure belongs to the field of nuclear power technology, and specifically relates to a skeleton integral expansion joint positioning assembly and a skeleton integral expansion joint device. The skeleton integral expansion joint positioning assembly disclosed in the present disclosure can simultaneously fix multiple quick-release parts to be expanded, and the axial positioning and circumferential positioning of the skeleton integral expansion joint positioning assembly can make the angles of multiple quick-release parts inserted into the guide tube of the fuel assembly skeleton consistent with the expansion package depth during expansion, which is conducive to the one-time overall expansion joint forming of multiple quick-release parts, effectively reducing the defective rate and improving production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear power, and in particular relates to a skeleton integral expansion joint positioning component and a skeleton integral expansion joint device. Background Art

[0002] Generally speaking, fuel assembly skeleton expansion is a key process in the production of 17X17 skeletons. Skeleton expansion mainly refers to firmly connecting the casing (or quick-release component) to the skeleton guide tube by expansion, so that the casing (or quick-release component) can play the role of connecting the upper tube seat and the skeleton. In the related technology, the consistency of the connection between the casing (or quick-release component) and the skeleton guide tubes is the key to skeleton expansion. Therefore, how to improve the consistency of the expansion of the casing (or quick-release component) and the fuel assembly skeleton, and how to improve the efficiency of skeleton expansion are problems that need to be solved urgently. Summary of the invention

[0003] In order to overcome the problems existing in the related art, a skeleton integral expansion joint positioning component and a skeleton integral expansion joint device are provided.

[0004] According to one aspect of an embodiment of the present disclosure, there is provided a skeleton integral expansion joint positioning assembly, the skeleton integral expansion joint positioning assembly being used to fix a plurality of quick-release parts;

[0005] Each quick release member includes a tubular body, and a first protrusion structure and a second protrusion structure extending radially outwardly from the outside of the body, wherein the first protrusion structure is located at one end of the body, the second protrusion structure is located between the two ends of the body, and the shape of the first protrusion structure is different from the shape of the second protrusion structure;

[0006] The frame integral expansion joint positioning assembly comprises: a positioning plate, a plurality of gaskets and a plurality of positioning pins, and a plurality of limiting through holes are provided in the axial direction on the positioning plate;

[0007] The contour of each limiting through hole is adapted to the contour of each first protruding structure, so that the first protruding structure of each quick-release member can pass through the aligned limiting through hole from one side of the positioning plate to the other side of the positioning plate, and the second protruding structure of the quick-release member is clamped on one side of the positioning plate at the position of the limiting through hole;

[0008] Each gasket can be stuck between a first protruding structure of a quick release member passing through the limiting through hole and the other side of the positioning plate, and can prevent the first protruding structure from retreating from the limiting through hole, thereby limiting the axial relative movement between the quick release member and the positioning plate;

[0009] On one side of the positioning plate, a plurality of positioning pins are arranged around each limiting through hole. When the second protruding structure of the quick release member is clamped on one side of the positioning plate and is located at the limiting through hole, the positioning pins around the limiting through hole can clamp the second protruding structure, thereby limiting the radial relative movement between the quick release member and the positioning plate.

[0010] In a possible implementation, the second protrusion structure of each quick-release component includes a plurality of wing-shaped protrusions evenly distributed around the quick-release component body;

[0011] When the quick release part is inserted into the aligned limiting through hole and the second protrusion structure of the quick release part is stuck on one surface of the positioning plate and is located at the position of the limiting through hole, each positioning pin around the limiting through hole can be adaptively embedded between the two wing-shaped protrusions of the second protrusion structure, thereby limiting the axial relative movement between the quick release part and the positioning plate.

[0012] In a possible implementation, an arc-shaped groove is formed between the two wing-shaped protrusions of each second protrusion structure, and the curvature of the side surface of each positioning pin matches the curvature of each arc-shaped groove.

[0013] In a possible implementation, the positioning plate and each second protrusion structure are symmetrical structures, and when each second protrusion structure is restricted to one side of the positioning plate, the angle between the symmetry axis of each second protrusion structure and the symmetry axis of the positioning plate is a first preset angle.

[0014] In a possible implementation, each gasket is provided with a positioning through hole along the axial direction, and the contour of the positioning through hole of each gasket is matched with the contour of each first protruding structure, so that each first protruding structure can pass through the positioning through hole of the aligned gasket;

[0015] When the first protrusion structure of the quick-release component passes through the aligned limiting through hole and the second protrusion structure of the quick-release component is stuck on one side of the positioning plate, if the gasket is sleeved on the main body of the quick-release component at a position between the first protrusion structure and the other side of the positioning plate, and the gasket is rotated around the axis of the main body by a second preset angle, the gasket can be stuck between the first protrusion structure and the other side of the positioning plate and form a barrier between the first protrusion structure and the passing limiting through hole.

[0016] In a possible implementation manner, one or more positions at the edge of the positioning through hole of each gasket that contact the first protruding structure are provided with an inclined surface facing the first protruding structure.

[0017] In a possible implementation, the positioning plate is a rectangular plate, and the frame integral expansion positioning assembly further includes a first rib plate and a second rib plate;

[0018] The first rib is connected to one side of the positioning plate, the second rib is connected to the opposite side of the one side of the positioning plate, the first rib and the second rib are respectively perpendicular to the positioning plate, and the first rib and the second rib are respectively parallel to the one side.

[0019] In a possible implementation manner, the first rib plate is connected to the positioning plate by screws.

[0020] In a possible implementation manner, the second rib plate is connected to the positioning plate by screws.

[0021] According to one aspect of an embodiment of the present disclosure, a skeleton integral expansion device is provided, wherein the fuel assembly skeleton integral expansion device comprises: the above-mentioned skeleton integral expansion positioning assembly, a first platform and a second platform;

[0022] The first platform is used to fix the frame integral expansion joint positioning assembly;

[0023] The second platform is used for fixedly connecting the fuel assembly skeleton to be expanded.

[0024] The beneficial effect of the present disclosure is that by adopting the skeleton integral expansion joint positioning assembly disclosed in the present disclosure, multiple quick-release parts to be expanded can be fixed at the same time, and the axial positioning and circumferential positioning of the skeleton integral expansion joint positioning assembly can make the angles of multiple quick-release parts inserted into the guide tube of the fuel assembly skeleton and the expansion package depth during expansion consistent, which is conducive to the overall expansion forming of multiple quick-release parts at one time, effectively reducing the defective rate and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a front view of a positioning plate according to an exemplary embodiment.

[0026] Figure 2 is a front view of a quick-release component according to an exemplary embodiment.

[0027] Figure 3 is a side view of a quick release component according to an exemplary embodiment.

[0028] Figure 4 is a side view of a gasket according to an exemplary embodiment.

[0029] Figure 5 is a front view of a gasket according to an exemplary embodiment.

[0030] Figure 6 It is a schematic diagram showing the axial positioning of a quick release component according to an exemplary embodiment.

[0031] Figure 7a It is a schematic diagram showing the circumferential positioning of a quick-release component according to an exemplary embodiment.

[0032] Figure 7b is a schematic diagram of a positioning through hole and a pin hole according to an exemplary embodiment.

[0033] Figure 8 is a schematic diagram of a right rib plate according to an exemplary embodiment.

[0034] Fig. 9 A schematic diagram of a left rib plate is shown according to an exemplary embodiment.

[0035] Fig.10 The figure is a front view of a skeleton integral expansion joint positioning assembly according to an exemplary embodiment.

[0036] Fig.11 It is a schematic diagram of a skeleton integral expansion joint device according to an exemplary embodiment. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Figure 1 is a front view of a positioning plate according to an exemplary embodiment. Figure 2 is a front view of a quick-release component according to an exemplary embodiment. Figure 3 is a side view of a quick release component according to an exemplary embodiment.

[0039] In this disclosure, Figure 2 and Figure 3 As shown, each quick-release component 20 includes a tubular main body 200, and a first protrusion structure 210 and a second protrusion structure 220 extending radially outward from the outside of the main body 200, wherein the first protrusion structure 210 is located at one end of the main body 200, and the second protrusion structure 220 is located between the two ends of the main body 200, and the shape of the first protrusion structure 210 is different from the shape of the second protrusion structure 220.

[0040] The frame integral expansion joint positioning assembly may include: a positioning plate, a plurality of gaskets and a plurality of positioning pins. Figure 1As shown, a plurality of limiting through holes 100 are provided in the axial direction on the positioning plate 10, and the contour of each limiting through hole 100 is adapted to the contour of each first protruding structure, so that the first protruding structure of each quick release part can pass through the aligned limiting through hole from one side of the positioning plate to reach the other side of the positioning plate, and the limiting through hole can prevent the second protruding structure of the quick release part from passing through, so that the second protruding structure of the quick release part is stuck on one side of the positioning plate at the position of the limiting through hole. Each gasket can be stuck between the first protruding structure of a quick release part passing through the limiting through hole and the other side of the positioning plate, and can prevent the first protruding structure from retreating from the passing limiting through hole, thereby limiting the axial relative movement between the quick release part and the positioning plate.

[0041] Each gasket is provided with a positioning through hole along the axial direction, and the contour of the positioning through hole of each gasket is adapted to the contour of each first protruding structure. In this way, the first protruding structure of each quick-release member can pass through the positioning through hole of the aligned gasket, and the second protruding structure of the quick-release member cannot pass through the positioning through hole.

[0042] For example, Figure 2 and Figure 3 As shown, the first protrusion structure 210 of each quick release component 20 includes two wing-shaped protrusions, which are evenly distributed around the quick release component, and the second protrusion structure 220 of each quick release component 20 includes four wing-shaped protrusions, which are evenly distributed around the quick release component. Figure 4 is a side view of a gasket according to an exemplary embodiment. Figure 5 FIG. 1 is a front view of a gasket according to an exemplary embodiment. Figure 4 and Figure 5 As shown, the contour of the positioning hole 300 of each gasket 30 can be adapted to the first protrusion structure including two wing-shaped protrusions, so that the first protrusion structure can pass through the positioning hole of the gasket, while the second structure including four wing-shaped protrusions cannot pass through the positioning hole of the gasket.

[0043] Figure 6 FIG. 1 is a schematic diagram showing the axial positioning of a quick release member according to an exemplary embodiment. Figure 6 As shown, when the first protruding structure (not shown in the figure) of the quick release part 20 passes through the aligned limiting through hole, and the second protruding structure 220 of the quick release part is stuck on one side of the positioning plate, the gasket 30 can be sleeved on the quick release part body at a position between the first protruding structure and the other side of the positioning plate 10, and after the gasket 30 is rotated around the axis of the body by a second preset angle, the first protruding structure can be stuck on the gasket 10 from the limiting through hole of the gasket 10, so that the gasket can be stuck between the first protruding structure and the other side of the positioning plate, and form a barrier between the first protruding structure and the passing positioning through hole, thereby playing a role in axial limiting the quick release part.

[0044] In a possible implementation, one or more positions at the edge of the positioning through hole of each gasket that contact the first protruding structure are provided with an inclined surface facing the first protruding structure. Figure 4 and Figure 5 As shown, the first protrusion structure can be two relatively distributed wing-shaped protrusions, and a slope 301 toward the wing-shaped protrusion can be set at the position where the edge of the limiting through hole 300 contacts the side of each wing-shaped protrusion. This is conducive to the smooth rotation of the gasket, so that each wing-shaped protrusion of the first protrusion structure is stuck on the gasket 30.

[0045] On one side of the positioning plate, multiple positioning pins are arranged around each limiting through hole. When the second protrusion structure of the quick release component is stuck on one side of the positioning plate and is located at the limiting through hole, the positioning pins around the limiting through hole can clamp the second protrusion structure, thereby limiting the radial relative movement between the quick release component and the positioning plate.

[0046] For example, Figure 7a FIG. 1 is a schematic diagram showing the circumferential positioning of a quick release component according to an exemplary embodiment. Figure 7a As shown, the second protrusion structure of each quick-release component 20 includes a plurality of wing-shaped protrusions evenly distributed around the main body of the quick-release component; when the quick-release component is inserted into the aligned limiting through hole and the second protrusion structure of the quick-release component is stuck on one side of the positioning plate and located at the position of the limiting through hole, each positioning pin 70 around the limiting through hole can be adaptively embedded between the two wing-shaped protrusions of the second protrusion structure, thereby limiting the radial relative movement between the quick-release component and the positioning plate.

[0047] In a possible implementation, an arc-shaped groove is formed between the two wing-shaped protrusions of each second protrusion structure, and the curvature of the side surface of each positioning pin matches the curvature of each arc-shaped groove.

[0048] In a possible implementation, the positioning plate and each second protruding structure are symmetrical structures. Figure 7b FIG. 1 is a schematic diagram of a positioning through hole and a pin hole according to an exemplary embodiment. Figure 7b As shown, the position of the pin hole 101 of the positioning pin around each positioning hole 100 can be set so that when each second protrusion structure is restricted to one side of the positioning plate, the angle between the symmetry axis of each second protrusion structure and the symmetry axis of the positioning plate is a first preset angle, which can be, for example, 45 degrees.

[0049] Figure 8 is a schematic diagram of a right rib plate according to an exemplary embodiment. Fig. 9 A schematic diagram of a left rib plate is shown according to an exemplary embodiment. Figure 8 and Fig. 9As shown, the frame integral expansion joint positioning assembly further includes a first rib plate 80 and a second rib plate 90; Fig.10 FIG. 1 is a front view of a skeleton integral expansion joint positioning assembly according to an exemplary embodiment. Fig.10 As shown, the first rib plate 80 is connected to one side of the positioning plate 10, and the second rib plate 90 is connected to one side of the positioning plate 10 opposite to the one side. The first rib plate and the second rib plate are respectively perpendicular to the positioning plate, and the first rib plate and the second rib plate are respectively parallel to the one side. The first rib plate is connected to the positioning plate by screws. The second rib plate is connected to the positioning plate by screws.

[0050] Fig.11 FIG. 1 is a schematic diagram of a skeleton integral expansion joint device according to an exemplary embodiment. Fig.11 As shown, the fuel assembly skeleton integral expansion device includes: the above-mentioned skeleton integral expansion positioning assembly 110, a first platform 111 and a second platform 112; the first platform 111 is used to fix the skeleton integral expansion positioning assembly; the second platform 112 is used to fix the fuel assembly skeleton to be expanded.

[0051] In one example, before expansion, the positioning plate is connected to the first platform through the rib plate, and after the quick-release part is inserted into the positioning plate, the gasket is inserted and rotated to directly lock the quick-release part on the positioning plate; after the quick-release parts are aligned and expanded with the guide tube of the fuel assembly skeleton through relative movement between the first platform and the second platform, the gasket is rotated to align the gasket with the corresponding first protrusion structure, so that after the gasket is taken out, the positioning plate is moved to take out the entire skeleton.

[0052] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A skeleton integral expansion joint positioning assembly, characterized in that: The skeleton integral expansion joint positioning assembly is used to fix a plurality of quick-release components; Each quick-release component includes a tubular body, and a first protrusion structure and a second protrusion structure extending radially outward from the outside of the body, wherein the first protrusion structure is located at one end of the body, the second protrusion structure is located between the two ends of the body, and the shape of the first protrusion structure is different from the shape of the second protrusion structure; The frame integral expansion joint positioning assembly comprises: a positioning plate, a plurality of gaskets and a plurality of positioning pins, and the positioning plate is provided with a plurality of limiting through holes along the axial direction; The contour of each limiting through hole is adapted to the contour of each first protruding structure, so that the first protruding structure of each quick-release component can pass through the aligned limiting through hole from one side of the positioning plate to the other side of the positioning plate, and the second protruding structure of the quick-release component is stuck on one side of the positioning plate at the position of the limiting through hole; Each gasket can be stuck between a first protruding structure of a quick-release component passing through the limiting through hole and the other side of the positioning plate, and can prevent the first protruding structure from retreating from the limiting through hole, thereby limiting the axial relative movement between the quick-release component and the positioning plate; A plurality of positioning pins are arranged around each limiting through hole on one side of the positioning plate. When the second protruding structure of the quick-release component is clamped on one side of the positioning plate and located at the limiting through hole, the positioning pins around the limiting through hole can clamp the second protruding structure, thereby limiting the radial relative movement between the quick-release component and the positioning plate.

2. The skeleton integral expansion joint positioning assembly according to claim 1, characterized in that: The second protrusion structure of each quick-release component includes a plurality of wing-shaped protrusions evenly distributed around the main body of the quick-release component; When the quick-release component is inserted into the aligned limiting through hole and the second protrusion structure of the quick-release component is stuck on one surface of the positioning plate and is located at the position of the limiting through hole, each positioning pin around the limiting through hole can be adaptively embedded between the two wing-shaped protrusions of the second protrusion structure, thereby limiting the radial relative movement between the quick-release component and the positioning plate.

3. The skeleton integral expansion joint positioning assembly according to claim 2, characterized in that: An arc-shaped groove is formed between the two wing-shaped projections of each second projection structure, and the curvature of the side surface of each positioning pin matches the curvature of each arc-shaped groove.

4. The skeleton integral expansion joint positioning assembly according to claim 1, characterized in that: The positioning plate and each second protruding structure are symmetrical structures. When each second protruding structure is restricted to one side of the positioning plate, the angle between the symmetry axis of each second protruding structure and the symmetry axis of the positioning plate is a first preset angle.

5. The skeleton integral expansion joint positioning assembly according to claim 1, characterized in that: Each gasket is provided with a positioning through hole along the axial direction, and the contour of the positioning through hole of each gasket is adapted to the contour of each first protruding structure, so that each first protruding structure can pass through the positioning through hole of the aligned gasket; When the first protruding structure of the quick-release component passes through the aligned limiting through hole and the second protruding structure of the quick-release component is stuck on one side of the positioning plate, if the gasket is sleeved on the main body of the quick-release component and located between the first protruding structure and the other side of the positioning plate, and the gasket is rotated around the axis of the main body by a second preset angle, the gasket can be stuck between the first protruding structure and the other side of the positioning plate and form a barrier between the first protruding structure and the passing limiting through hole.

6. The skeleton integral expansion joint positioning assembly according to claim 5, characterized in that: The edge of the positioning through hole of each gasket is an inclined surface facing the center of the gasket.

7. The skeleton integral expansion joint positioning assembly according to claim 1, characterized in that: The positioning plate is a rectangular plate, and the frame integral expansion positioning assembly further includes a first rib plate and a second rib plate; The first rib is connected to one side of the positioning plate, the second rib is connected to the opposite side of the one side of the positioning plate, the first rib and the second rib are respectively perpendicular to the positioning plate, and the first rib and the second rib are respectively parallel to the one side.

8. The skeleton integral expansion joint positioning assembly according to claim 7, characterized in that: The first rib plate is connected to the positioning plate by screws.

9. The skeleton integral expansion joint positioning assembly according to claim 7, characterized in that: The second rib plate is connected to the positioning plate by screws.

10. A fuel assembly skeleton integral expansion device, characterized in that: The fuel assembly skeleton integral expansion device comprises: a skeleton integral expansion positioning assembly as claimed in any one of claims 1 to 9, a first platform and a second platform; The first platform is used to fix the frame integral expansion joint positioning assembly; The second platform is used for fixedly connecting the fuel assembly skeleton to be expanded.

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