CN219292702U

CN219292702U - Sand box for manufacturing torque arm

Info

Publication number: CN219292702U
Application number: CN202222920298.0U
Authority: CN
Inventors: 徐惠民; 胡彬; 韩琪
Original assignee: Hex Machinery Taixing Co ltd
Current assignee: Hex Machinery Taixing Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-07-04
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a sand box for manufacturing a torque arm; comprises a cope flask and a drag flask; the inside of the cope flask comprises a torque arm forming area a, the torque arm forming area a is arranged to be in profile modeling with the upper profile of the torque arm, a plurality of escape grooves a are formed in the outer surface of the cope flask, a plurality of sand injection holes a are formed in the top of the cope flask at positions corresponding to the torque arm forming area a, and shape-following risers are arranged at intervals between the sand injection holes a; the inside of the drag flask comprises a torque arm forming area b, the torque arm forming area b is arranged to be in profile modeling with the lower profile of the torque arm, a plurality of escape grooves b are formed in the top of the drag flask, a plurality of sand injection holes b are formed in the positions, corresponding to the torque arm forming area b, of the top of the drag flask, and a pouring system following area is arranged in the central positions of the insides of the drag flask and the drag flask. The sand box has the advantages that the sand box can save 4/5 sand amount for molding; greatly saves the molding cost of the sand mold.

Description

Sand box for manufacturing torque arm

Technical Field

The utility model relates to the field of manufacturing of torque arms, in particular to a sand box for manufacturing of torque arms.

Background

Because the shape of the torque arm is irregular, the sand box used for manufacturing the torque arm in the prior art is inconvenient to use and high in sand eating amount, unnecessary waste is caused, manufacturing cost is increased, the patent number is CN216151027U, the special mold sand box for manufacturing the torque arm of the gearbox of the wind generating set is recorded, the upper sand box and the lower sand box are cuboid frame structures arranged on the front side and the rear side of the box body surface in an open mode, and sand blocking plates are arranged at four end angles in the upper sand box and the lower sand box through the structure, although the cavity structures in the upper sand box and the lower sand box are reduced to a certain extent, the using amount of molding sand is reduced, and the sand-iron ratio of the upper sand box and the lower sand box is reduced. However, the sand saving amount of the sand box structure is not optimal, and a new sand box for manufacturing the torque arm needs to be designed in order to further achieve a better sand saving effect.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the sand box for manufacturing the torque arm, which has the advantages of stable structure and good sand saving effect.

In order to achieve the above purpose, the technical scheme of the utility model is to provide a sand box for manufacturing a torque arm; comprises a cope flask and a drag flask; the cope flask is matched with the upper die, and the drag flask is matched with the lower die; the interior of the cope flask comprises a torque arm forming area a, and the torque arm forming area a is arranged to be in profile modeling with the upper profile of the torque arm; the outer surface of the cope flask is provided with a plurality of escaping grooves a, the top of the cope flask is provided with a plurality of sand injection holes a at positions corresponding to the torque arm forming areas a, and shape-following risers are arranged between the sand injection holes a at intervals; the inside of the drag flask comprises a torque arm forming area b which is arranged to be in profile modeling with the lower profile of the torque arm, a plurality of escape grooves b are formed in the top of the drag flask, and a plurality of sand injection holes b are formed in positions, corresponding to the torque arm forming area b, of the top of the drag flask; and a casting system conformal region is arranged in the central position inside the cope flask and the drag flask.

Preferably: the space between the torque arm forming area a and the upper die and the space between the torque arm forming area b and the lower die are both set to be 50-60mm.

Preferably: the distance between the shape following area of the pouring system and the pouring system of the die is set to be 50-60mm.

Preferably: the bottom of the cope flask and the bottom of the drag flask are respectively provided with a flask locating hole, and the flask locating holes are symmetrically distributed at four corners of the cope flask and the drag flask.

Preferably: the side of the cope flask is provided with a flask hanging handle, and the flask hanging handle is provided with a limit groove.

Preferably: the cope and the drag are made of cast iron.

The beneficial effects of the utility model are as follows: 1. the upper surfaces of the upper sand box and the lower sand box are provided with the escape grooves, so that the weight of the sand box is reduced; the torque arm forming area a is set to be in contour with the upper profile of the torque arm, and the torque arm forming area b is set to be in contour with the lower profile of the torque arm, so that sand filling amount between the cope flask and the upper die and between the drag flask and the lower die is greatly reduced; the space between the torque arm forming area a and the upper die and the space between the torque arm forming area b and the lower die are all set to be 50-60mm; the maximum sand saving amount is achieved while the molding quality of the sand mold is ensured.

2. A plurality of sand injection holes a are formed in the top of the cope flask corresponding to the torque arm forming area a, and a plurality of sand injection holes b are formed in the top of the drag flask corresponding to the torque arm forming area b; the sand injection efficiency is improved, the rapid sand injection is realized, and the sand can uniformly fill the cavity.

3. The purpose of further saving sand is achieved by arranging the shape following areas of the pouring system in the central positions of the upper sand box and the lower sand box, and setting the distance between the shape following areas of the pouring system and the pouring system of the die to be 50-60mm.

4. The sand box locating holes are formed in the bottom of the upper sand box and the bottom of the lower sand box, so that the sand mould can be conveniently fixed during mould closing; the sand box locating holes are symmetrically distributed at the four corners of the upper sand box and the lower sand box, so that the structural stability of the sand mould after being matched is effectively improved.

5. The sand box hanging handle is arranged, so that the sand box can be conveniently lifted, and the limiting groove is formed in the sand box hanging handle, so that slipping phenomenon during lifting is effectively prevented.

6. The cope flask and the drag flask are made of cast iron, so that the sand box is high in firmness and can be reused, the utilization rate is improved, and the use cost is reduced.

Drawings

FIG. 1 is a schematic view of a torque arm structure of the present utility model;

FIG. 2 is a second schematic diagram of the torque arm structure of the present utility model;

FIG. 3 is a schematic illustration of a construction of a cope flask of the prior art;

FIG. 4 is a schematic view of a drag flask construction of the prior art;

FIG. 5 is a schematic illustration of one of the cope flask structures of the present utility model;

FIG. 6 is a second schematic illustration of the construction of the cope flask of the present utility model;

FIG. 7 is a schematic view of one of the drag flask structures of the present utility model;

FIG. 8 is a second schematic view of the drag flask of the present utility model;

1. a cope flask; 2. a drag flask; 3. a torque arm; 4. sand box locating holes; 5. a sand box hanging handle; 6. a limit groove; 11. a torque arm forming area a;12. a casting system shape following region; 14. a material escape groove a;15. sand injection hole a;16. riser along with shape; 21. a torque arm forming region b;22. a material escape groove b;23. sand injection hole b.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

Example 1

A sand box for manufacturing a torque arm; comprises a cope flask 1 and a drag flask 2; the cope flask 1 is matched with an upper die, and the drag flask 2 is matched with a lower die; the inside of the cope flask 1 comprises a torque arm forming area a11, the torque arm forming area a11 is arranged to be in profile modeling with the upper profile of the torque arm 3, a plurality of escape grooves a14 are formed in the outer surface of the cope flask 1, a plurality of sand injection holes a15 are formed in the top of the cope flask 1 at positions corresponding to the torque arm forming area a11, and shape-following risers 16 are arranged between the sand injection holes a15 at intervals; the inside of the drag flask 2 comprises a torque arm forming area b21, the torque arm forming area b21 is arranged to be in profile modeling with the lower profile of the torque arm 3, a plurality of escape grooves b22 are formed in the top of the drag flask 2, and a plurality of sand injection holes b23 are formed in the top of the drag flask 2 at positions corresponding to the torque arm forming area b 21; and a casting system conformal area 12 is arranged at the inner center of the cope flask 1 and the drag flask 2.

In the technical scheme of the embodiment, the gravity reduction effect of the sand box is achieved by arranging the escape grooves on the upper surfaces of the cope sand box and the drag sand box; the escape tanks are arranged in a rectangular array, so that the structural stability of the sand box is ensured; the torque arm forming area a is set to be in contour with the upper profile of the torque arm, and the torque arm forming area b is set to be in contour with the lower profile of the torque arm, so that sand filling amount between the cope flask and the upper die and between the drag flask and the lower die is greatly reduced; the sand injection holes of the cope flask and the drag flask are symmetrically arranged, so that the sand injection efficiency is improved, quick sand injection is realized, the sand can uniformly fill the cavity, and the stable quality of the sand mould is ensured. The riser is mainly used for preventing shrinkage cavity and shrinkage porosity of a torque arm of a casting, and simultaneously has the functions of adjusting a casting temperature field, overflowing cold metal liquid of a flow head, removing gas, collecting dregs and the like.

As a preferred technical scheme of the embodiment: the space between the torque arm forming area a11 and the upper die and the space between the torque arm forming area b21 and the lower die are all set to be 50-60mm.

In the technical scheme, the space between the torque arm forming area a and the upper die and the space between the torque arm forming area b and the lower die are both set to be 50-60mm; the maximum sand saving amount is achieved while the molding quality of the sand mold is ensured.

As a preferred technical scheme of the embodiment: the distance between the shape following area of the pouring system and the pouring system of the die is set to be 50-60mm.

In the technical scheme, the gap between the sand box and the mold casting system is 50-60mm, so that more extreme sand saving is realized.

As a preferred technical scheme of the embodiment: the bottoms of the cope flask 1 and the drag flask 2 are respectively provided with a flask locating hole 4, and the flask locating holes 4 are symmetrically distributed at four corners of the cope flask 1 and the drag flask 2.

In the technical scheme, the positioning holes are arranged so as to be convenient for fixing the sand mould during mould closing; the sand box locating holes are symmetrically distributed at the four corners of the upper sand box and the lower sand box, so that the structural stability of the sand mould after being matched is effectively improved.

As a preferred technical scheme of the embodiment: the side of the cope flask 1 is provided with a flask hanging handle 5, and the flask hanging handle 5 is provided with a limit groove 6.

In the technical scheme, the sand box hanging handles are arranged, so that the sand box is convenient to lift, and the number of the sand box hanging handles is set to be 2 per side; the sand box hanging handle is provided with the limit groove, so that slipping phenomenon during lifting is effectively prevented.

As a preferred technical scheme of the embodiment: the materials of the cope flask 1 and the drag flask 2 are cast iron.

In the technical scheme, the cope flask and the drag flask are made of cast iron, so that the sand box is high in firmness, can be reused, the utilization rate is improved, and the use cost is reduced.

Compared with the sand amount for molding of the sand box in the prior art, the sand box disclosed by the utility model can save 4/5 of the sand amount for molding; greatly saves the molding cost of the sand mold.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. A sand box for manufacturing a torque arm; comprises a cope flask (1) and a drag flask (2); the cope flask (1) is matched with the upper die, and the drag flask (2) is matched with the lower die; the method is characterized in that: the inside of the cope flask (1) comprises a torque arm forming area a (11), and the torque arm forming area a (11) is arranged to be in profile modeling with the upper profile of the torque arm (3); the outer surface of the cope flask (1) is provided with a plurality of escape grooves a (14), the top of the cope flask (1) is provided with a plurality of sand injection holes a (15) at positions corresponding to the torque arm forming areas a (11), and random riser heads (16) are arranged between the sand injection holes a (15) at intervals; the inside of the drag flask (2) comprises a torque arm forming area b (21), the torque arm forming area b (21) is arranged to be in profile modeling with the lower profile of the torque arm (3), a plurality of escape grooves b (22) are formed in the top of the drag flask (2), and a plurality of sand injection holes b (23) are formed in the top of the drag flask (2) at positions corresponding to the torque arm forming area b (21); and a casting system shape following area (12) is arranged in the central position inside the cope flask (1) and the drag flask (2).

2. A torque arm manufacturing flask according to claim 1; the method is characterized in that: the space between the torque arm forming area a (11) and the upper die and the space between the torque arm forming area b (21) and the lower die are both set to be 50-60mm.

3. A torque arm manufacturing flask according to claim 1; the method is characterized in that: the distance between the shape following area (12) of the pouring system and the pouring system of the die is set to be 50-60mm.

4. A torque arm manufacturing flask according to claim 1; the method is characterized in that: the bottom of the cope flask (1) and the bottom of the drag flask (2) are respectively provided with a flask locating hole (4), and the flask locating holes (4) are symmetrically distributed at four corners of the cope flask (1) and the drag flask (2).

5. A torque arm manufacturing flask according to claim 1; the method is characterized in that: the side of the cope flask (1) is provided with a flask hanging handle (5), and the flask hanging handle (5) is provided with a limit groove (6).

6. A torque arm manufacturing flask according to claim 1; the method is characterized in that: the cope flask (1) and the drag flask (2) are made of cast iron.