Core bar for casting large nuclear power copper-containing cylinder

Abstract

The utility model relates to a core bar for casting a large nuclear power copper-containing cylinder, which comprises a lower-layer horizontal framework, a middle-layer horizontal framework and an upper-layer horizontal framework, the middle parts of the lower-layer horizontal framework and the middle-layer horizontal framework as well as the middle parts of the middle-layer horizontal framework and the upper-layer horizontal framework are connected through vertical support columns, and the side parts of the middle-layer horizontal framework and the upper-layer horizontal framework are connected through side support columns; the lower-layer horizontal framework comprises two parallel lower-layer cross beams, the lower-layer cross beams are connected through lower-layer connecting beams, the lower surfaces of the lower-layer connecting beams are connected with lower stand columns, the middle-layer horizontal framework comprises three parallel middle-layer cross beams, the middle-layer cross beams are connected through middle-layer connecting beams, and the lower surfaces of the middle-layer cross beams in the middle are connected with middle-layer stand columns. The upper-layer horizontal framework comprises three parallel upper-layer cross beams, the upper-layer cross beams are connected through upper-layer connecting beams, and the upper surfaces of the upper-layer cross beams are connected with a plurality of upper stand columns. The utility model is adapted to the shape of the cylinder sand core, realizes stress balance, increases the strength of the sand core, and does not influence the deformability of a sand mold.

Description

Technical Field

[0001] The utility model relates to the field of casting, in particular to a core bone for casting a large nuclear power copper-containing cylinder. Background Art

[0002] For large steel castings, large cores are inherently difficult to manufacture, placing high demands on core strength and mold yield. Therefore, the production of large cores and sand cores has always been a technical challenge in casting. To overcome this challenge, we developed a core for large nuclear power copper cylinder castings. This ensures both sand mold strength and yield, supporting the production of large nuclear power copper cylinders and achieving high economic benefits. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a core bone for casting a large nuclear power copper-containing cylinder, which increases the strength of the sand core and ensures the shape of the sand core.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A core skeleton for casting a large nuclear power copper-containing cylinder comprises a lower horizontal skeleton, a middle horizontal skeleton and an upper horizontal skeleton. The middle parts of the lower and middle horizontal skeletons and the middle and upper horizontal skeletons are connected by vertical pillars, and the sides are connected by side pillars. The lower horizontal skeleton comprises two parallel lower crossbeams, which are connected by lower connecting beams, and the lower surfaces of the lower connecting beams are connected to the lower columns. The middle horizontal skeleton comprises three parallel middle crossbeams, which are connected by middle connecting beams, and the lower surfaces of the middle crossbeams are connected to the middle columns. The upper horizontal skeleton comprises three parallel upper crossbeams, which are connected by upper connecting beams, and the upper surfaces of the upper crossbeams are connected to multiple upper columns.

[0006] The widths of the lower horizontal frame, the middle horizontal frame and the upper horizontal frame increase sequentially from bottom to top.

[0007] The vertical pillars and side pillars are arranged in a staggered manner.

[0008] The lengths of the lower-layer crossbeams and the middle-layer crossbeams are the same, and the middle crossbeam in the upper-layer crossbeams is longer than the crossbeams on both sides.

[0009] The length of the lower layer cross beam is longer than that of the middle layer cross beam and shorter than that of the upper layer cross beam.

[0010] Compared with the existing technology, the beneficial effects of the utility model are:

[0011] The utility model is used for the core bone of the sand core of the large nuclear power copper cylinder, adapts to the shape of the sand core, realizes the force balance, and increases the strength of the sand core without affecting the yieldability of the sand mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the present utility model.

[0013] Figure 2 It is a front view of the utility model.

[0014] Figure 3 It is a side view of the present utility model.

[0015] Figure 4 This is an application diagram of the utility model. DETAILED DESCRIPTION

[0016] In the description of this utility model, it should be understood that the terms "first," "second," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means more than two.

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0018] like Figure 1-Figure 3 A core skeleton for casting a large nuclear power copper-containing cylinder comprises a lower horizontal skeleton 1, a middle horizontal skeleton 2 and an upper horizontal skeleton 3. The middle parts of the lower horizontal skeleton 1 and the middle horizontal skeleton 2, and the middle horizontal skeleton 2 and the upper horizontal skeleton 3 are connected by vertical pillars 4, and the sides are connected by side pillars 5. The lower horizontal skeleton 1 comprises two parallel lower cross beams 11, which are connected by lower connecting beams 12, and the lower surfaces of the lower connecting beams 12 are connected to lower columns 13. The middle horizontal skeleton 2 comprises three parallel middle cross beams 21, which are connected by middle connecting beams 22, and the lower surfaces of the middle cross beams 21 in the middle are connected to middle columns 23. The upper horizontal skeleton 3 comprises three parallel upper cross beams 31, which are connected by upper connecting beams 32, and the upper surfaces of the upper cross beams 31 are connected to multiple upper columns 33.

[0019] The widths of the lower horizontal frame 1, the middle horizontal frame 2 and the upper horizontal frame 3 increase sequentially from bottom to top.

[0020] The vertical supports 4 and the side supports 5 are arranged alternately.

[0021] The lower beams 11 have the same length, the middle beams 21 have the same length, and the middle beam of the upper beams 31 is longer than the beams on both sides.

[0022] The length of the lower beam 11 is longer than the middle beam 21 and shorter than the upper beam 31 .

[0023] During construction, the wooden mold is placed on the platform in the normal way of making a core box. The core bone is wrapped with an exhaust rope and then placed in the core box to start the sand molding operation. After the sand mold hardens, the mold is removed and the core is inserted.

[0024] To make the purpose, technical solution, and technical effects of the present invention more clearly understood, the technical solutions in the embodiments of the present invention are now described clearly and completely. However, the embodiments described below are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art without inventive effort in conjunction with the embodiments of the present invention are also within the scope of protection of the present invention.

[0025] Example

[0026] A core bone for casting a large nuclear power copper cylinder has a size of 5300×1900×1950mm and is welded from square steel with a cross-section of 100×100mm. It includes a lower horizontal frame 1, a middle horizontal frame 2 and an upper horizontal frame 3. The middle parts between the lower horizontal frame 1 and the middle horizontal frame 2, and between the middle horizontal frame 2 and the upper horizontal frame 3 are connected by vertical struts 4, and the sides are connected by side struts 5. The layer spacing is 500mm, and the vertical struts 4 and side struts 5 are staggered.

[0027] The widths of the lower horizontal frame 1, the middle horizontal frame 2 and the upper horizontal frame 3 increase sequentially from bottom to top.

[0028] The lower horizontal frame 1 includes two parallel lower cross beams 11 . The lower cross beams 11 have the same length and are connected by a lower connecting beam 12 . The lower surface of the lower connecting beam 12 is connected to a 350mm lower column 13 .

[0029] The middle-level horizontal skeleton 2 includes three parallel middle-level beams 21 . The middle-level beams 21 have the same length and are connected by middle-level connecting beams 22 . The lower surface of the middle middle-level beam 21 is connected to a 100mm middle-level column 23 .

[0030] The upper horizontal frame 3 includes three parallel upper beams 31. The middle beam 31 is longer than the beams on both sides. The upper beams 31 are connected by upper connecting beams 32. The upper surface of the upper beams 31 is connected to 21 300mm high upper columns 33.

[0031] The length of the lower beam 11 is longer than the middle beam 21 and shorter than the upper beam 31 .

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and basic spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A core bone for casting a large nuclear power copper cylinder, characterized in that: It includes a lower horizontal frame, a middle horizontal frame and an upper horizontal frame. The middle parts of the lower horizontal frame and the middle horizontal frame, and the middle horizontal frame and the upper horizontal frame are connected by vertical pillars, and the sides are connected by side pillars. The lower horizontal frame includes two parallel lower cross beams, which are connected by lower connecting beams, and the lower surfaces of the lower connecting beams are connected to the lower columns. The middle horizontal frame includes three parallel middle cross beams, which are connected by middle connecting beams, and the lower surfaces of the middle cross beams are connected to the middle columns. The upper horizontal frame includes three parallel upper cross beams, which are connected by upper connecting beams, and the upper surfaces of the upper cross beams are connected to multiple upper columns.

2. A core bone for casting a large nuclear power copper cylinder according to claim 1, characterized in that: The widths of the lower horizontal frame, the middle horizontal frame and the upper horizontal frame increase sequentially from bottom to top.

3. A core bone for casting a large nuclear power copper cylinder according to claim 1, characterized in that: The vertical pillars and side pillars are arranged in a staggered manner.

4. A core bone for casting a large nuclear power copper cylinder according to claim 1, characterized in that: The lengths of the lower-layer crossbeams and the middle-layer crossbeams are the same, and the middle crossbeam in the upper-layer crossbeams is longer than the crossbeams on both sides.

5. The core bone for casting a large nuclear power copper cylinder according to claim 1, characterized in that: The length of the lower layer cross beam is longer than that of the middle layer cross beam and shorter than that of the upper layer cross beam.

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