CN219052858U

CN219052858U - Nodular cast iron casting device based on magnetic yoke heat treatment

Info

Publication number: CN219052858U
Application number: CN202320137758.4U
Authority: CN
Inventors: 王志鹏; 李建波; 姜静
Original assignee: Penglai Sanhe Casting Co ltd
Current assignee: Penglai Sanhe Casting Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-23
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses a nodular cast iron casting device based on magnetic yoke heat treatment, which comprises a cope flask, a drag flask, a base and a casting mould, wherein a clamping mechanism is arranged on the outer sides of the cope flask and the drag flask, the clamping mechanism comprises a top plate, an adjusting rod is rotatably connected to the middle of the top plate, one end of the adjusting rod is connected with a hand wheel, the other end of the adjusting rod is connected with an adjusting seat through threads, push rods are symmetrically arranged on two sides of the adjusting seat, connecting rods which are symmetrically arranged are hinged to the other ends of the push rods, a bottom plate is hinged to the other ends of the connecting rods which are positioned on the lower side of the push rods, a pressing rod is arranged at the end part of the bottom plate, and one end of the pressing rod is hinged to the base. The clamping mechanism is arranged, so that the clamping mechanism can be suitable for a casting sand box for processing the magnetic yoke, the upper sand mould and the lower sand mould are fastened, the pressure of the sand box is increased, the sand box has higher rigidity in the casting process, the expansion pressure generated in the casting solidification process is born, and shrinkage cavity and shrinkage porosity defects generated by the movement of the molded wall are prevented.

Description

Nodular cast iron casting device based on magnetic yoke heat treatment

Technical Field

The utility model relates to the technical field of magnetic yoke casting, in particular to a nodular cast iron casting device based on magnetic yoke heat treatment.

Background

The control rod driving mechanism plays a key role in the safe operation of the reactor and drives the control rod to move up and down in the reactor so as to realize the safe control of the reactor under the conditions of starting, power regulation, shutdown and accidents, is an important part for ensuring the safety and controllability of the reactor, and mainly comprises a magnetic yoke coil assembly, a driving rod assembly, a hook claw shell assembly and a formed sleeve. The magnetic yoke is usually made of soft magnetic materials which do not produce a magnetic field (magnetic force lines) per se and only transmit magnetic force lines in a magnetic circuit, and is commonly made of soft iron, A3 steel and soft magnetic alloy with relatively high magnetic permeability, and in some special occasions, the magnetic yoke is also made of ferrite materials.

The magnetic yoke for the control rod driving mechanism is produced in a ductile cast iron casting mode, in the casting process, the casting generates high expansion internal pressure in the eutectic solidification process, the sand mold, the sand core and the mother sand box are required to have high rigidity so as to bear the expansion pressure and prevent shrinkage cavity and shrinkage porosity defects caused by movement of the mold wall, the upper sand mold and the lower sand mold are fastened by adopting a mechanical method, and the box pressing force is increased, so that one of good solutions is realized, but the sizes and the shapes of the casting sand boxes used for different products are different, and at present, no uniform fastening device is suitable for the casting process of the products. For this purpose, we propose a ductile iron casting device based on yoke heat treatment.

Disclosure of Invention

The utility model mainly aims to provide a nodular cast iron casting device based on magnetic yoke heat treatment, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a nodular cast iron casting device based on yoke thermal treatment, includes cope flask, drag flask, base and mould, the cope flask with the drag flask outside is equipped with clamping mechanism, clamping mechanism includes the roof, the roof middle part rotates and is connected with the regulation pole, it is connected with the hand wheel to adjust pole one end, and the other end has the regulation seat through threaded connection, it is equipped with the push rod to adjust seat bilateral symmetry, the push rod other end articulates there is the connecting rod of symmetry setting, is located the push rod upside the connecting rod other end articulates with the roof, is located the push rod downside the connecting rod other end articulates there is the bottom plate, the hold-down bar is installed to the bottom plate tip, hold-down bar one end with the base articulates, and the other end passes through the screw thread and is connected with the roof.

Further, a positioning column is arranged on the upper end face of the drag flask, and a positioning hole is formed in the position, corresponding to the positioning column, of the drag flask.

Further, the casting mold includes a casting system and an article.

Further, the outer sides of the cope flask and the drag flask are respectively provided with a lifting rod.

Further, the uniform end surfaces of the cope flask and the drag flask penetrate through the rectangular parallelepiped, and semicircular notches which are concave inwards are formed in the same positions on the outer sides of the cope flask and the drag flask.

Further, the cross-sectional diameter of the tie rod is equal to the circular notch diameters of the cope flask and the drag flask.

Compared with the prior art, the utility model has the following beneficial effects:

(1) Through the clamping mechanism that is equipped with, can be applicable to yoke processing with casting sand box, upper and lower sand mould is fastened, increases the pressure box power for the sand box has higher rigidity in the casting process, bears the expansion pressure that the foundry goods solidification in-process produced, prevents shrinkage cavity, the shrinkage cavity defect that produces because the molding wall removes.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a ductile iron casting apparatus based on heat treatment of a magnetic yoke according to the present utility model;

FIG. 2 is a schematic structural view of a clamping mechanism of a ductile iron casting apparatus based on heat treatment of a magnetic yoke according to the present utility model;

FIG. 3 is a schematic diagram of a casting mold of a ductile iron casting apparatus based on heat treatment of a magnetic yoke according to the present utility model;

FIG. 4 is a schematic view of a cope flask of a ductile iron casting apparatus based on heat treatment of a yoke according to the present utility model;

fig. 5 is a schematic structural view of a drag flask of a ductile iron casting apparatus based on heat treatment of a yoke according to the present utility model.

In the figure: 1. a cope flask; 2. a drag flask; 3. a base; 4. casting mould; 41. a pouring system; 42. a product; 5. a clamping mechanism; 501. a top plate; 502. an adjusting rod; 503. a hand wheel; 504. an adjusting seat; 505. a push rod; 506. a connecting rod; 507. a bottom plate; 508. a pressing rod; 6. positioning columns; 7. positioning holes; 8. and lifting the boom.

Detailed Description

The present utility model will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are presented as schematic drawings, rather than physical drawings, and are not to be construed as limiting the utility model, and wherein certain components of the drawings are omitted, enlarged or reduced in order to better illustrate the detailed description of the present utility model, and are not representative of the actual product dimensions.

Example 1

As shown in fig. 1 to 5, a ductile cast iron casting device based on magnetic yoke heat treatment comprises a cope flask 1, a drag flask 2, a base 3 and a casting mould 4, wherein a clamping mechanism 5 is arranged on the outer sides of the cope flask 1 and the drag flask 2, the clamping mechanism 5 comprises a top plate 501, an adjusting rod 502 is rotationally connected to the middle part of the top plate 501, one end of the adjusting rod 502 is connected with a hand wheel 503, the other end of the adjusting rod is connected with an adjusting seat 504 through threads, push rods 505 are symmetrically arranged on two sides of the adjusting seat 504, the other end of each push rod 505 is hinged with a connecting rod 506 which is symmetrically arranged, the other end of each connecting rod 506 which is positioned on the upper side of each push rod 505 is hinged with the top plate 501, the other end of each connecting rod 506 which is positioned on the lower side of each push rod 505 is hinged with a bottom plate 507, one end of each bottom plate 507 is provided with a compressing rod 508, one end of each compressing rod 508 is hinged with the base 3, and the other end of each compressing rod is connected with the top plate 501 through threads.

The upper end face of the drag flask 2 is provided with a positioning column 6, and the upper flask 1 is provided with a positioning hole 7 at a position corresponding to the positioning column 6.

The casting mould 4 comprises a casting system 41 and a piece 42.

The outer sides of the cope flask 1 and the drag flask 2 are respectively provided with a lifting rod 8.

The uniform end surfaces of the cope flask 1 and the drag flask 2 penetrate through the rectangular parallelepiped, and semicircular notches which are concave inwards are arranged at the same positions outside the cope flask 1 and the drag flask 2.

The cross-sectional diameter of the connecting rod 506 is equal to the circular notch diameters of the cope flask 1 and the drag flask 2.

By adopting the technical scheme: when the casting mold is used, the hand wheel 503 is rotated, the hand wheel 503 drives the adjusting rod 502 to rotate in the adjusting seat 504, the adjusting seat 504 drives the push rod 505 to rotate, the push rod 505 is used for realizing fixation of the sand box by extruding the connecting rod 506, the expansion pressure generated in the casting solidification process extrudes the bottom plate 507, the bottom plate 507 transmits extrusion force to a stress system formed by the connecting rod 506 and the push rod 505 to form self-locking, thereby reliable clamping force can be provided, the casting mold is suitable for casting sand boxes for yoke processing, the upper sand mold and the lower sand mold are fastened, the pressure box force is increased, the sand box has higher rigidity in the casting process, the expansion pressure generated in the casting solidification process is born, and shrinkage cavity and shrinkage porosity defects generated by wall movement are prevented.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a nodular cast iron casting device based on yoke heat treatment, includes cope flask (1), drag flask (2), base (3) and mould (4), its characterized in that: the utility model provides a sand table, including sand table, cope flask (1), drag flask (2), clamping mechanism (5) are equipped with clamping mechanism (5) with the outside of drag flask (2), clamping mechanism (5) are including roof (501), roof (501) middle part rotation is connected with adjusts pole (502), it is connected with hand wheel (503) to adjust pole (502) one end, and the other end has adjusting seat (504) through threaded connection, adjusting seat (504) bilateral symmetry is equipped with push rod (505), the push rod (505) other end articulates there is connecting rod (506) of symmetry setting, is located push rod (505) upside connecting rod (506) other end is articulated with roof (501), is located push rod (505) downside connecting rod (506) other end articulates there is bottom plate (507), bottom plate (507) end mounting compresses tightly pole (508), compressing pole (508) one end with base (3) are articulated, and the other end is connected with roof (501) through the screw thread.

2. The ductile iron casting apparatus according to claim 1 wherein the yoke is heat treated based, wherein: the upper end face of the drag flask (2) is provided with a positioning column (6), and the upper flask (1) is provided with a positioning hole (7) at a position corresponding to the positioning column (6).

3. The ductile iron casting apparatus according to claim 1 wherein the yoke is heat treated based, wherein: the casting mould (4) comprises a casting system (41) and a part (42).

4. The ductile iron casting apparatus according to claim 1 wherein the yoke is heat treated based, wherein: and lifting rods (8) are arranged on the outer sides of the cope flask (1) and the drag flask (2).

5. The ductile iron casting apparatus according to claim 1 wherein the yoke is heat treated based, wherein: the uniform end surfaces of the cope flask (1) and the drag flask (2) penetrate through a cuboid, and semicircular notches which are concave inwards are formed in the same positions on the outer sides of the cope flask (1) and the drag flask (2).

6. The ductile iron casting apparatus according to claim 1 wherein the yoke is heat treated based, wherein: the cross-sectional diameter of the connecting rod (506) is equal to the circular notch diameters of the cope flask (1) and the drag flask (2).