CN212350295U

CN212350295U - Runner structure in wind generating set front box casting gating system

Info

Publication number: CN212350295U
Application number: CN202020710759.XU
Authority: CN
Inventors: 张利强; 商伟新
Original assignee: Changzhou Wujin Sanlian Casting Co ltd
Current assignee: Changzhou Wujin Sanlian Casting Co ltd
Priority date: 2020-05-05
Filing date: 2020-05-05
Publication date: 2021-01-15
Anticipated expiration: 2030-05-05

Abstract

The utility model discloses a pouring gate structure in a casting system of a front box body casting of a wind generating set, which comprises a lower die, wherein the top of the lower die is provided with an upper die, the inner side wall of the lower die is provided with a cavity, one side of the upper surface of the lower die is fixedly connected with a second fixed block, the inner side wall of the second fixed block is fixedly connected with a pouring cup, the inner side wall of the upper die is provided with a first sprue, one end of the first sprue is communicated with one end of the pouring cup, the first sprue and the inner sprue can stabilize the flow of molten metal and prevent skimming slag, so that the filling is stable, a third transition sprue slows down the speed of the molten metal, then the molten metal enters the cavity from the first transition sprue, the existence of air in the molten metal is reduced, the molten metal flows stably, the sand inclusion situation is avoided, and meanwhile, the skimming effect is better for the molten slag, the pouring effect of the front box body casting of the wind generating set is better, and the quality is higher.

Description

Runner structure in wind generating set front box casting gating system

Technical Field

The utility model relates to a metal casting technical field specifically is a structure of watering among wind generating set front box foundry goods the gating system.

Background

Wind power generation refers to converting kinetic energy of wind into electric energy. Wind is an energy source without public nuisance, the wind power generation is very environment-friendly, and the generated electric energy is very huge. The principle of wind power generation is that wind power drives windmill blades to rotate, and then the rotating speed is increased through a speed increaser, so that a generator is promoted to generate electricity. The devices required for wind power generation are called wind generating sets. The wind generating set can be divided into three parts of a wind wheel, a generator and a tower. The front box body is one of core components of the wind generating set, and the front box body of the wind generating set is generally of a round frame structure, so that the product size is generally large, and the whole structure is single and thin and dispersed, so that the conventional casting system for the front box body of the wind generating set generally adopts large-flow dispersed iron feeding, adopts quantitative ladle casting, and utilizes the casting system to slowly and slowly fill the mold.

The invention is disclosed in China: CN207770762U discloses a pouring gate structure, which ensures the ceramic cup and the pouring gate to be concentric by the positioning of a central cylinder, and the positioning is reliable; good sequential solidification and sufficient strength are achieved through the stepped cross section; the product yield is improved and the stability of module placement is ensured by arranging a plurality of branch runners; the pouring gate has simple structure and high overall structural strength, and is convenient for manufacturing a die; however, in the casting process, air is contained in molten metal due to the fact that the molten metal flows slowly, a cross runner is not arranged in the structure, and a good skimming effect is not achieved on molten slag generated by the molten metal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure of watering among wind generating set front box foundry goods the gating system to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pouring gate structure in a casting pouring system of a front box body of a wind generating set comprises a lower die, wherein an upper die is arranged at the top of the lower die, a cavity is arranged on the inner side wall of the lower die, a second fixed block is fixedly connected with one side of the upper surface of the lower die, the inner side wall of the second fixed block is fixedly connected with a pouring cup, the inner side wall of the upper die is provided with a first straight pouring gate, one end of the first straight pouring channel is communicated with one end of the pouring cup, a first cross pouring channel is arranged on the inner side wall of the upper die, one end of the first cross pouring channel is communicated with one end of the first straight pouring channel, the inner side wall of the upper die is provided with a second straight pouring channel, and one end of the second straight pouring gate is communicated with one end of the first cross pouring gate, three inner pouring gates are symmetrically arranged on the inner side wall of the upper die, and one ends of the three inner pouring gates are communicated with the inner side wall of the second straight pouring gate.

As further preferable in the present technical solution: the inner side wall of the lower die is provided with a third sprue, the inner side wall of the third sprue is communicated with one end of the ingate, the inner side wall of the lower die is positioned below the ingate and is provided with a third transition gate, the inner side wall of the third transition gate is communicated with one end of the third sprue, the inner side wall of the lower die is symmetrically provided with two first transition gates, and one ends of the two first transition gates are communicated with one end of the third transition gate.

As further preferable in the present technical solution: the inner side wall of the sprue cup is fixedly connected with a first fixing block, and the upper surface of the lower die is fixedly connected with a ceramic filter plate.

As further preferable in the present technical solution: an exhaust hole is formed in the inner side wall of the upper die and located above the cavity.

As further preferable in the present technical solution: the sand core mould comprises a cavity, a lower sand core and an upper mould, wherein the inner bottom wall of the cavity is fixedly connected with the lower sand core, the inner bottom wall of the cavity is fixedly positioned on the outer side wall of the lower sand core and is fixedly connected with a second mould, the lower surface of the upper mould is fixedly connected with a first mould, and the bottom of the first mould is fixedly connected with the upper sand core.

As further preferable in the present technical solution: the lateral wall symmetrical welding of bed die has four fourth fixed blocks, four the equal threaded connection of inside wall of fourth fixed block has the bolt, the lateral wall symmetrical welding of going up the mould has four third fixed blocks, four the third fixed block all passes through the bolt with fourth fixed block fixed connection, bed die bottom fixed connection underframe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up first sprue and first sprue, first sprue distributes clear molten metal to the ingate, first sprue and ingate can steady the flow of molten metal, and hinder the skimming slag, it is steady to make the type fill, the third transition is watered the speed that makes the molten metal and is slowed down, then get into the die cavity in the first transition is watered, the existence of air in the molten metal has been reduced, the molten metal flows steadily, the condition of sand inclusion is avoided appearing, there is better the skimming effect that hinders to the slag simultaneously, make the better quality of pouring effect of wind generating set front box foundry goods higher.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the bottom frame of the present invention;

fig. 3 is a schematic structural view of the first transition runner of the present invention.

In the figure: 1. a lower die; 2. an exhaust hole; 3. a third transition runner; 4. a third sprue; 6. an inner pouring channel; 7. a second sprue; 8. a ceramic filter plate; 9. a pouring cup; 10. a first fixed block; 11. a second fixed block; 12. a first sprue; 13. a third fixed block; 14. a bolt; 15. a fourth fixed block; 16. a first runner; 18. a first mold; 19. a sand core is arranged; 21. setting a sand core; 22. a second mold; 23. a cavity; 24. an upper die; 25. a bottom frame; 26. a first transition runner.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a structure of watering among wind generating set front box foundry goods gating system, including bed die 1, the top of bed die 1 is equipped with mould 24, die cavity 23 has been seted up to the inside wall of bed die 1, one side fixedly connected with second fixed block 11 of bed die 1 upper surface, the inside wall fixedly connected with pouring cup 9 of second fixed block 11, first sprue 12 has been seted up to the inside wall of last mould 24, the one end of first sprue 12 and the one end intercommunication of pouring cup 9, first runner 16 has been seted up to the inside wall of going up mould 24, the one end of first runner 16 and the one end intercommunication of first sprue 12, second sprue 7 has been seted up to the inside wall of going up mould 24, the one end of second sprue 7 and the one end intercommunication of first sprue 16, three ingate 6 has been seted up to the inside wall symmetry of going up mould 24, the one end of three ingate 6 all communicates with the inside wall of second sprue 7.

In this embodiment, specifically: a third sprue 4 is formed in the inner side wall of the lower die 1, the inner side wall of the third sprue 4 is communicated with one end of an ingate 6, a third transition runner 3 is formed in the inner side wall of the lower die 1 and positioned below the ingate 6, the inner side wall of the third transition runner 3 is communicated with one end of the third sprue 4, two first transition runners 26 are symmetrically formed in the inner side wall of the lower die 1, and one ends of the two first transition runners 26 are communicated with one end of the third transition runner 3; the third sprue 4 can make molten metal skimmed from the sprue 6 converge together, the molten metal uniformly flows into the third transition runner 3 from the third sprue 4, and the third transition runner 3 slows down the speed of the molten metal and then enters the cavity 23 from the first transition runner 26.

In this embodiment, specifically: the inner side wall of the sprue cup 9 is fixedly connected with a first fixing block 10, and the upper surface of the lower die 1 is fixedly connected with a ceramic filter plate 8; the first fixing block 10 plays a role in supporting and fixing the ceramic filter plate 8, and the ceramic filter plate 8 can filter impurities in the molten metal and foreign matters outside, so that the molten metal is kept clean.

In this embodiment, specifically: an exhaust hole 2 is formed in the inner side wall of the upper die 24 and above the cavity 23; the vent holes 2 can exhaust air in the cavity 23 during casting, so that the phenomenon that bubbles generated in molten metal influence the quality of a casting is avoided.

In this embodiment, specifically: the inner bottom wall of the cavity 23 is fixedly connected with a lower sand core 21, the inner bottom wall of the cavity 23 and the outer side wall of the lower sand core 21 are fixedly connected with a second mold 22, the lower surface of an upper mold 24 is fixedly connected with a first mold 18, and the bottom of the first mold 18 is fixedly connected with an upper sand core 19; the shape of the molten metal can be fixed after the lower core 21 is butted against the upper core 19 and the first and

second molds

18 and 22.

In this embodiment, specifically: four fourth fixed blocks 15 are symmetrically welded on the outer side wall of the lower die 1, bolts 14 are in threaded connection with the inner side walls of the four fourth fixed blocks 15, four third fixed blocks 13 are symmetrically welded on the outer side wall of the upper die 24, the four third fixed blocks 13 are fixedly connected with the fourth fixed blocks 15 through the bolts 14, and the bottom of the lower die 1 is fixedly connected with a bottom frame 25; after the fourth fixing block 15 and the third fixing block 13 are fixed by the bolts 14, the lower die 1 and the upper die 24 can be fixed, so that the casting effect is better, and the pouring channel is not affected.

When the metal liquid pouring device is used, a worker pours the metal liquid into the pouring cup 9, the pouring cup 9 is provided with a slope-shaped inner wall to buffer the metal liquid, so that the metal liquid cannot directly fall into the first straight pouring gate 12, and the metal liquid sputtering is avoided to cause damage to the worker; the molten metal in the first sprue 12 forms a pressure head, so that the molten metal enters the first runner 16 under the action of gravity, the first runner 16 distributes clean molten metal to the ingate 6, the first runner 16 and the ingate 6 can stabilize the flow of the molten metal and prevent slag skimming, the mold filling is stable, the molten metal skimming in the ingate 6 can be converged together by the third sprue 4, the molten metal uniformly flows into the third transition runner 3 from the third sprue 4, and the third transition runner 3 slows down the speed of the molten metal and then enters the cavity 23 from the first transition runner 26.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a structure of watering among box foundry goods gating system before wind generating set, includes bed die (1), its characterized in that: an upper die (24) is arranged at the top of the lower die (1), a cavity (23) is formed in the inner side wall of the lower die (1), a second fixed block (11) is fixedly connected to one side of the upper surface of the lower die (1), a pouring cup (9) is fixedly connected to the inner side wall of the second fixed block (11), a first sprue (12) is formed in the inner side wall of the upper die (24), one end of the first sprue (12) is communicated with one end of the pouring cup (9), a first runner (16) is formed in the inner side wall of the upper die (24), one end of the first runner (16) is communicated with one end of the first sprue (12), a second sprue (7) is formed in the inner side wall of the upper die (24), one end of the second sprue (7) is communicated with one end of the first runner (16), three inner runners (6) are symmetrically formed in the inner side wall of the upper die (24), one end of each of the three inner pouring channels (6) is communicated with the inner side wall of the second straight pouring channel (7).

2. The pouring gate structure in the pouring system for the front box casting of the wind generating set according to claim 1, wherein: the inner side wall of the lower die (1) is provided with a third sprue (4), the inner side wall of the third sprue (4) is communicated with one end of the ingate (6), the inner side wall of the lower die (1) is positioned below the ingate (6) and is provided with a third transition runner (3), the inner side wall of the third transition runner (3) is communicated with one end of the third sprue (4), the inner side wall of the lower die (1) is symmetrically provided with two first transition runners (26), and one end of the first transition runner (26) is communicated with one end of the third transition runner (3).

3. The pouring gate structure in the pouring system for the front box casting of the wind generating set according to claim 1, wherein: the inner side wall of the sprue cup (9) is fixedly connected with a first fixing block (10), and the upper surface of the lower die (1) is fixedly connected with a ceramic filter plate (8).

4. The pouring gate structure in the pouring system for the front box casting of the wind generating set according to claim 1, wherein: and the inner side wall of the upper die (24) is positioned above the cavity (23) and is provided with an exhaust hole (2).

5. The pouring gate structure in the pouring system for the front box casting of the wind generating set according to claim 1, wherein: the sand core forming die is characterized in that a lower sand core (21) is fixedly connected to the inner bottom wall of the cavity (23), the inner bottom wall of the cavity (23) is located on the outer side wall of the lower sand core (21) and is fixedly connected with a second die (22), a first die (18) is fixedly connected to the lower surface of the upper die (24), and an upper sand core (19) is fixedly connected to the bottom of the first die (18).

6. The pouring gate structure in the pouring system for the front box casting of the wind generating set according to claim 1, wherein: the outer side wall symmetrical welding of bed die (1) has four fourth fixed blocks (15), four the equal threaded connection of inside wall of fourth fixed block (15) has bolt (14), the outer side wall symmetrical welding of going up mould (24) has four third fixed blocks (13), four third fixed block (13) all pass through bolt (14) with fourth fixed block (15) fixed connection, bed die (1) bottom fixed connection underframe (25).