CN209773396U - Pouring system of complex thin-wall vertical mixed-flow pump shell - Google Patents

Abstract

the utility model discloses a gating system of vertical mixed flow pump shell of complicated thin wall, including first horizontal runner, second horizontal runner and third horizontal runner, the fixed vertical runner that is provided with on a side end face of first horizontal runner, the up end of first horizontal runner is provided with the pouring basin through the support is fixed, the up end of third horizontal runner is provided with big rising head, four groups of little rising heads are installed to the lower terminal surface of first horizontal runner, the fixed two sets of horizontal runners that are provided with on a side end face of vertical runner, three vertical runners of three groups are installed to the lower terminal surface of first horizontal runner and third horizontal runner, be provided with the foundry goods between horizontal runner and the vertical runner, and the waist of foundry goods is provided with the square boss, the circular hole department of the waist of foundry goods is provided with the chill. The utility model discloses be convenient for effectual opposite vertical mixed flow pump shell carries out quick pouring work, and the device makes the foundry goods fill the type process steady simultaneously, and the molten metal solidifies in proper order, can improve the yield of foundry goods.

Description

Pouring system of complex thin-wall vertical mixed-flow pump shell

Technical Field

The utility model relates to a vertical mixed flow pump shell equipment technical field specifically is a gating system of vertical mixed flow pump shell of complicated thin wall.

Background

The pump shell is used for guiding the liquid to the impeller, collecting the liquid flowing out of the impeller and flowing to the water outlet pipe, and meanwhile converting partial kinetic energy of the flowing liquid into pressure energy. This requires the casting to have a dense structure, a stable size, sufficient strength and wear resistance, and good heat dissipation and corrosion resistance to prevent the pump body from bulging and leakage failure. The casting is made of special stainless steel for casting. SCS13 steel is a special alloy cast steel that is refined to meet specific needs to achieve specific properties, usually containing high levels of alloying elements.

The prior art has the following defects:

1. In the use process of the existing pouring system, the materials are often high in melting point and wide in solidification temperature range, and are easy to generate the defects of segregation, heat cracking, shrinkage porosity, air holes and the like;

2. meanwhile, in the use process of the existing pouring system, the casting cavity is often deep and narrow, the interfaces are mutated more, the structure is compact, the defects of undercasting, cold shut, shrinkage deformation and the like are very easy to occur during casting, the casting difficulty is very high, and the yield is very low.

SUMMERY OF THE UTILITY MODEL

an object of the utility model is to provide a gating system of vertical mixed flow pump shell of complicated thin wall to solve the problem that proposes among the above-mentioned background art.

in order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gating system of vertical mixed flow pump shell of complicated thin wall, includes first cross gate, second cross gate and third cross gate, the fixed erects the water that is provided with on a side end face of first cross gate, the up end of first cross gate is through the fixed pouring basin that is provided with of support, the up end of third cross gate is provided with big rising head, four groups of little rising heads are installed to the lower terminal surface of first cross gate, it is provided with two sets of horizontal runners to fix on a side end face of erectting water, three vertical gates of group are installed to the lower terminal surface of first cross gate and third cross gate, be provided with the foundry goods between horizontal runner and the vertical gate, and the waist of foundry goods is provided with the square boss, the circular hole department of the waist of foundry goods is provided with the chill.

Preferably, the first runner, the second runner and the third runner are arranged at positions above the casting, the first runner is a long straight runner, the second runner is a runner bent by 37 degrees along with the casting, and the third runner is a short straight runner.

Preferably, the vertical pouring gate is communicated with the casting, and the small risers are arranged at four corners of the square boss at the waist of the casting.

Preferably, the vertical pouring channel is arranged at the bottom end of the casting, the vertical pouring channel is connected with the first horizontal pouring channel, and the transverse pouring gate is communicated with the bottom end of the casting.

Preferably, the gating system is used for typical castings with maximum outer profile dimensions of 438mm 184mm, a volume of 1549.534cm3 and a wall thickness of 7 mm.

Preferably, the chilling block is of an annular structure, the inner diameter of the chilling block is the same as the inner diameter of a circular hole in the waist of the casting, the outer diameter of the chilling block is the same as the outer diameter of the circular hole, and the thickness of the chilling block is 10 mm.

Preferably, the pouring cup is arranged in the middle of the first runner, the height of the first runner is 60mm, the height of the third runner is 52mm, and the centers of all the first runner, the second runner and the third runner are at the same height.

Compared with the prior art, the beneficial effects of the utility model are that:

1. The utility model discloses a through being provided with first horizontal runner, second horizontal runner and third horizontal runner, in the use, through the action of gravity, the effectual pouring work that carries on to the foundry goods, simultaneously through under the combination with the vertical runner, can all-round guarantee the pouring and the type of filling of foundry goods, can guarantee that the molten metal fills the type steady, does not have turbulent current gassing phenomenon, very big improvement the yield of foundry goods;

2. The utility model discloses still simultaneously through being provided with under mutually supporting of chill, big rising head and little rising head, the in-process of use, the efficient of being convenient for carries out efficient order to the foundry goods and solidifies, and effectual assurance foundry goods do not have defects such as shrinkage cavity, shrinkage porosity, and the foundry goods warp for a short time, and surface quality is good, the further yield of having guaranteed the foundry goods of device.

Drawings

FIG. 1 is a schematic view of the overall structure of a casting system of a complex thin-wall vertical mixed-flow pump casing according to the present invention;

FIG. 2 is a schematic view of the combination of the casting system and the casting of the complex thin-wall vertical mixed-flow pump casing of the present invention;

Fig. 3 is the casting structure diagram of the pouring system of the complex thin-wall vertical mixed-flow pump casing of the utility model.

In the figure: 1. a first runner; 2. a second runner; 3. a third runner; 4. a vertical pouring channel; 5. a pouring cup; 6. a large riser; 7. a small riser; 8. a lateral gate; 9. a vertical gate; 10. casting; 11. a square boss; 12. and (5) performing cold iron.

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.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a gating system of vertical mixed flow pump shell of complicated thin wall, includes first runner 1, second runner 2 and third runner 3, the fixed erector 4 that is provided with on the terminal surface of a side of first runner 1, the up end of first runner 1 is provided with pouring basin 5 through the support is fixed, the up end of third runner 3 is provided with big rising head 6, four groups of little rising heads 7 are installed to the lower terminal surface of first runner 1, the fixed two sets of horizontal runners 8 that are provided with on 4 side end surfaces of erector, three groups of vertical gates 9 are installed to the lower terminal surface of first runner 1 and third runner 3, be provided with foundry goods 10 between horizontal runner 8 and the vertical gate 9, and the waist of foundry goods 10 is provided with square boss 11, the circular hole department of the waist of foundry goods 10 is provided with chill 12.

The first horizontal pouring gate 1, the second horizontal pouring gate 2 and the third horizontal pouring gate 3 are arranged above the casting 10, the first horizontal pouring gate 1 is a long straight pouring gate, the second horizontal pouring gate 2 is a horizontal pouring gate bent by 37 degrees along with the casting 10, and the third horizontal pouring gate 3 is a short straight pouring gate, so that the uniform pouring is effectively ensured; the vertical pouring gate 9 is communicated with the casting 10, and the small risers 7 are arranged at four corners of a square boss 11 at the waist part of the casting 10, so that the liquidity of the device is ensured; the vertical pouring gate 4 is arranged at the bottom end of the casting 10, the vertical pouring gate 4 is connected with the first horizontal pouring gate 1, and the horizontal pouring gate 8 is communicated with the bottom of the casting 10, so that the rapid circulation of pouring liquid is ensured; the maximum external profile dimensions of a typical casting 10 for which the gating system is described are 438mm 184mm, a volume of 1549.534cm3 and a wall thickness of 7 mm; the chilling block 12 is of an annular structure, the inner diameter of the chilling block 12 is the same as the inner diameter of a circular hole in the waist of the casting 10, the cooling uniformity of the device is effectively guaranteed, the outer diameter of the chilling block 12 is the same as the outer diameter of the hole, and the thickness of the chilling block is 10 mm; the pouring cup 5 is arranged in the middle of the first cross gate 1, the height of the first cross gate 1 is 60mm, the height of the third cross gate 3 is 52mm, and the centers of the first cross gate 1, the second cross gate 2 and the third cross gate 3 are at the same height, so that the stable filling of molten metal can be ensured.

The working principle is as follows: when the device is used for pouring, firstly, a transverse pouring gate 8 is communicated with a shell at the bottom of a large flange of a casting 10, then a small riser 7 is fixed at four corners of a boss 11 at the waist of the casting 10, a large riser 6 is in flange connection with the top end of the casting 10 at any time, so that the casting 10 is effectively fixed, then pouring liquid is effectively added into the device through a pouring cup 5, the pouring liquid passes through a first transverse flow channel, a second transverse flow channel and a third transverse flow channel, then the casting 10 is effectively poured through a vertical pouring gate 9 under the action of gravity, then the pouring liquid flows into a vertical flow channel, so that the pouring liquid quickly flows into the casting 10 under the action of the transverse pouring gate 8, the casting 10 is poured through multiple directions, and the pouring and the filling of the casting 10 can be guaranteed in all directions through the combination of a top pouring mode and a side pouring mode under the gravity pouring condition, therefore, the casting 10 is stable in the mold filling process, molten metal is sequentially solidified, the yield of the casting 10 is greatly improved, the casting 10 is sequentially solidified by arranging the chilling block 12, the large riser 6 and the small riser 7, various defects in the casting 10 forming process are eliminated, and the product percent of pass is further improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 (7)

1. The utility model provides a gating system of vertical mixed flow pump shell of complicated thin wall, includes first runner (1), second runner (2) and third runner (3), its characterized in that: the fixed pouring gate (4) that is provided with on one side terminal surface of first horizontal runner (1), the up end of first horizontal runner (1) is through fixed pouring basin (5) that is provided with of support, the up end of third horizontal runner (3) is provided with big rising head (6), four groups of little rising heads (7) are installed to the lower terminal surface of first horizontal runner (1), fixed two sets of horizontal runner (8) that are provided with on vertical pouring gate (4) one side terminal surface, three vertical runner (9) of group are installed to the lower terminal surface of first horizontal runner (1) and third horizontal runner (3), be provided with foundry goods (10) between horizontal runner (8) and vertical runner (9), and the waist of foundry goods (10) is provided with square boss (11), the circular hole department of the waist of foundry goods (10) is provided with chill (12).

2. The pouring system of the complex thin-wall vertical mixed flow pump shell according to claim 1, characterized in that: the first horizontal pouring gate (1), the second horizontal pouring gate (2) and the third horizontal pouring gate (3) are arranged at the position above the casting (10), the first horizontal pouring gate (1) is a long straight pouring gate, the second horizontal pouring gate (2) is a 37-degree bending pouring gate along with the casting (10), and the third horizontal pouring gate (3) is a short straight pouring gate.

3. The pouring system of the complex thin-wall vertical mixed flow pump shell according to claim 1, characterized in that: the vertical pouring gate (9) is communicated with the casting (10), and the small risers (7) are arranged at four corners of a boss (11) on the waist of the casting (10).

4. The pouring system of the complex thin-wall vertical mixed flow pump shell according to claim 1, characterized in that: the vertical pouring gate (4) is arranged at the bottom end of the casting (10), the vertical pouring gate (4) is connected with the first horizontal pouring gate (1), and the horizontal pouring gate (8) is communicated with the bottom of the casting (10).

5. The pouring system of the complex thin-wall vertical mixed flow pump shell according to claim 1, characterized in that: the casting system is used for a typical casting (10) having a maximum outer profile dimension of 438mm 184mm, a volume of 1549.534cm3 and a wall thickness of 7 mm.

6. The pouring system of the complex thin-wall vertical mixed flow pump shell according to claim 1, characterized in that: chilling block (12) are loop configuration, chilling block (12) internal diameter is the same with the circular hole internal diameter size in foundry goods (10) waist, chilling block (12) external diameter is the same with the external diameter size in hole, and thickness is 10 mm.

7. the pouring system of the complex thin-wall vertical mixed flow pump shell according to claim 1, characterized in that: the sprue cup (5) is arranged in the middle of the first cross gate (1), the height of the first cross gate (1) is 60mm, the height of the third cross gate (3) is 52mm, and the centers of the first cross gate (1), the second cross gate (2) and the third cross gate (3) are at the same height.