CN220444990U

CN220444990U - Wind generating set gear box front box flange casting sand box

Info

Publication number: CN220444990U
Application number: CN202321741603.8U
Authority: CN
Inventors: 徐惠民; 李亮; 胡彬; 吕志祥
Original assignee: Hex Machinery Taixing Co ltd
Current assignee: Hex Machinery Taixing Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2024-02-06
Anticipated expiration: 2033-07-03

Abstract

The utility model discloses a flange casting sand box of a front box body of a gearbox of a wind generating set, which comprises a cope flask, a cope sand mould, an upper mould core, a lower sand mould and a lower sand mould, wherein riser heads are distributed in the cope flask, a middle sand box is arranged between the cope mould and the lower sand mould on the periphery of the cope mould core and the lower mould core, a hollow cavity formed by a plurality of vertically arranged baffle plates is also arranged in the middle sand box, and a middle sand mould formed by casting sand is arranged in the hollow cavity of the cope profiling surface and the lower profiling surface together; the beneficial effects are that: through the setting of well sand box, easily set up flange part's die joint, form upper and lower sand mould, optimize the quality of casting sand box, avoid producing shrinkage cavity, improved casting quality, but make full use of sand box's structure moreover, reduce the sand consumption, reduction in production cost.

Description

Wind generating set gear box front box flange casting sand box

Technical Field

The utility model relates to the technical field of metal casting, in particular to a flange casting sand box of a front box body of a gearbox of a wind generating set.

Background

As shown in FIG. 4, the flange is a part of a wind power generator, is a bearing part of wind power equipment, and needs to meet specific use requirements such as bearing load at the environmental temperature of stronger wind, forty degrees centigrade below zero and the like.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides the flange casting sand box for the front box body of the gearbox of the wind generating set, which optimizes the quality of the casting sand box through the arrangement of the middle sand box and the chill, avoids shrinkage cavity and shrinkage porosity, improves the casting quality, fully utilizes the structure of the sand box, reduces the sand consumption and reduces the production cost.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the flange casting sand box of the front box body of the gearbox of the wind generating set comprises a sand box, a sand feeding die core, a lower die core, a sand feeding die and a sand feeding die, wherein riser heads are distributed in the sand feeding die, an upper cavity formed by a plurality of vertically arranged baffle plates is arranged in the sand box, an upper profiling surface which is matched with an upper parting surface of a workpiece is arranged on the upper die core corresponding to the upper cavity of the sand feeding die, and sand feeding dies formed by casting sand are arranged in the upper profiling surface and the upper cavity of the sand feeding die;

a lower cavity formed by a plurality of baffle plates which are vertically arranged is also arranged in the lower sand box, a lower profiling surface which is matched with a lower parting surface of a workpiece is arranged on the lower mold core corresponding to the lower cavity of the lower sand box, and a lower sand mold formed by casting sand is arranged in the lower profiling surface and the lower cavity of the lower sand box;

a middle sand box is arranged between the upper sand mould and the lower sand mould on the periphery of the upper mould core and the lower mould core, a hollow cavity formed by a plurality of vertically arranged baffle plates is also arranged in the middle sand box, and a middle sand mould formed by casting sand is arranged in the cavity of the upper profiling surface and the lower profiling surface together with the lower sand box.

In order to accelerate cooling, reduce the size of a riser, eliminate shrinkage cavities and shrinkage porosity at local hot spots of castings, easily improve the quality of castings, a further preferred technical scheme is that an upper layer of middle cold iron ring and a lower layer of middle cold iron ring which are surrounded by a plurality of cold irons are arranged in a middle sand mould between the upper sand mould and the lower sand mould.

In order to accelerate cooling, reduce the size of a riser, eliminate shrinkage cavities and shrinkage porosity at local hot spots of castings and easily improve the quality of castings, a further preferred technical scheme is that one side of the middle sand mould, which is close to the upper sand mould, is provided with an upper cold iron ring surrounded by a plurality of cold irons.

In order to accelerate cooling, reduce the size of a riser, eliminate shrinkage cavities and shrinkage porosity at local hot spots of castings and easily improve the quality of castings, a further preferred technical scheme is that one side of the middle sand mould, which is close to the lower sand mould, is provided with a lower cold iron ring surrounded by a plurality of cold irons.

Compared with the prior art, the utility model has the beneficial effects that: the setting of the middle sand box is easy to set the parting surface of the flange part, so that an upper sand mould, a middle sand mould and a lower sand mould are formed, the quality of the casting sand box is optimized, shrinkage cavities and shrinkage porosity are avoided, the casting quality is improved, the structure of the sand box can be fully utilized, the sand consumption is reduced, and the production cost is reduced;

through the setting of chill, accelerate the cooling, reduce the riser size, eliminate shrinkage cavity and shrinkage cavity of foundry goods local hot junction department, easily improve foundry goods quality.

Drawings

FIG. 1 is one of the exploded isometric views of the present utility model prior to clamping;

FIG. 2 is a second exploded perspective view of the present utility model prior to mold closing;

FIG. 3 is an exploded isometric view of the present utility model after mold closing;

FIG. 4 is a diagram of a flange of the present utility model;

in the figure: 1. a cope flask; 2. riser; 3. sand feeding; 4. an upper mold core; 5. an upper cold iron ring; 6. a middle sand mould; 7. a gate; 8. a lower cold iron ring; 9. a middle sand box; 10. a lower mold core; 11. a sand mould is arranged; 12. a drag flask; 13. a middle cold iron ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples

As shown in fig. 1 and 2, a flange casting sand box of a front box body of a gearbox of a wind generating set comprises a sand box 1, wherein an upper cavity formed by a plurality of vertically arranged baffles is arranged in the sand box 1, an upper profiling surface which is matched with an upper parting surface of a workpiece is arranged on an upper mold core 4 corresponding to the upper cavity of the sand box 1, a sand casting mold 3 formed by casting sand is arranged in the cavity of the sand box 1, and a plurality of riser heads 2 are distributed in the sand casting mold 3;

a plurality of baffle-shaped lower cavities which are vertically arranged are also arranged in the drag flask 12, a lower profiling surface which is matched with a lower parting surface of a workpiece is arranged on the lower mold core 10 corresponding to the lower cavity of the drag flask 12, and a lower sand mold 11 formed by casting sand is arranged in the lower profiling surface and the cavity of the drag flask 12;

a middle sand box 9 is arranged between the upper sand mould 3 and the lower sand mould 11 on the periphery of the upper mould core 4 and the lower mould core 10, a hollow cavity formed by a plurality of vertically arranged baffle plates is also arranged in the middle sand box 9, a middle sand mould 6 formed by casting sand is arranged in the hollow cavity of the middle sand box 9 together with the upper profiling surface and the lower profiling surface, and pouring gates 7 are distributed in the middle sand mould 6;

in order to make each runner transition department be smooth curve, whole runner system molten iron velocity of flow is steady, easily improves foundry goods quality, and further, runner 7 includes the sprue, cross gate, ingate, one the sprue passes through cross gate and six ingates intercommunication, the ingate with the die cavity intercommunication of lower sand mould 11.

In order to accelerate cooling, reduce riser size, eliminate shrinkage cavity and shrinkage cavity of local hot junction of foundry goods, easily improve foundry goods quality, further, be equipped with upper and lower two-layer middle part chill ring 13 that is enclosed by a plurality of chills in the well sand mould 6 between last sand mould 3 and the lower sand mould 11.

In order to accelerate cooling, reduce riser size, eliminate shrinkage cavity and shrinkage cavity of the local hot junction of foundry goods department, easily improve foundry goods quality, further, the side that well sand mould 6 is close to last sand mould 3 is equipped with the upper portion chill ring 5 that is enclosed by a plurality of chills.

In order to accelerate cooling, reduce riser size, eliminate shrinkage cavity and shrinkage cavity of the local hot junction of foundry goods department, easily improve foundry goods quality, further, the side that well sand mould 6 is close to lower sand mould 11 is equipped with the lower part chill ring 8 that is enclosed by a plurality of chills.

The working principle is that as shown in fig. 1 and 2, firstly, a cope flask 1, an upper mold core 4, a middle sand box 9 and a lower mold core 10 are assembled with a lower flask 12 in sequence, then a plurality of riser heads 2 are uniformly arranged between the cope flask 1 and the upper mold core 4, a sprue 7 is arranged between the middle sand box 9 and the lower mold core 10, simultaneously, a chill is arranged between the upper mold core 4 and the lower mold core 10 according to an upper chill ring 5 and a middle chill ring 13, the position of the lower chill ring 8 is arranged between the upper mold core 4 and the lower mold core 10, casting sand is filled in cavities between the cope flask 1, the middle sand box 9, the lower flask 12 and the upper mold core 4 and the lower mold core 10, and then the casting sand is solidified at a high temperature to form a cope mold 3, wherein the cope mold 3 is provided with an upper profiling cavity with an upper profiling surface which is matched, and meanwhile, the riser heads 2 are solidified on one side of the cope mold 3 close to the cope flask 1;

meanwhile, the middle sand mould 6 is provided with a middle profiling cavity with an upper profiling surface and a lower profiling surface which are matched; the chill is fixed on the middle sand mould 6 to form an upper chill ring 5, a middle chill ring 13 and a lower chill ring 8, and the pouring gate is solidified on one side of the middle sand mould 6 close to the drag flask 12;

the lower sand mould 11 is provided with a lower profiling cavity with a lower profiling surface which is identical;

as shown in fig. 3, the upper mold core 4 and the lower mold core 10 are removed, the cope flask 1, the middle sand box 9 and the drag flask 12 are buckled together, the cope mold 3, the middle sand mold 6 and the drag mold 11 are buckled together, the upper profiling cavity, the middle profiling cavity and the lower profiling cavity are buckled together to form the shape of the workpiece, and then the casting workpiece is formed through pouring gate 7.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The flange casting sand box of the front box body of the gearbox of the wind generating set comprises a sand box, an upper mold core, a lower sand mold and a lower sand box, wherein riser heads are distributed in the sand box;

an upper cavity formed by a plurality of baffle plates which are vertically arranged is also arranged in the drag flask, a lower profiling surface which is matched with a lower parting surface of a workpiece is arranged on the lower mold core corresponding to the lower cavity of the drag flask, and a lower sand mold formed by casting sand is arranged in the lower profiling surface and the lower cavity of the drag flask;

a middle sand box is arranged between the upper sand mould and the lower sand mould on the periphery of the upper mould core and the lower mould core, a hollow cavity formed by a plurality of vertically arranged baffle plates is also arranged in the middle sand box, and a middle sand mould formed by casting sand is arranged in the hollow cavity of the lower sand box together with the upper profiling surface and the lower profiling surface.

2. The flange casting sand box for the front box body of the gearbox of the wind generating set, according to claim 1, is characterized in that an upper layer of middle iron cooling ring and a lower layer of middle iron cooling ring which are surrounded by a plurality of iron cooling blocks are arranged in a middle sand mould between the upper sand mould and the lower sand mould.

3. The flange casting sand box for the front box body of the gearbox of the wind generating set, according to claim 1, is characterized in that an upper cold iron ring surrounded by a plurality of cold irons is arranged on one side of the middle sand mould close to the upper sand mould.

4. The casting sand box for the flange of the gearbox front box body of the wind generating set, as set forth in claim 1, wherein a lower iron cooling ring surrounded by a plurality of iron cooling blocks is arranged on one side of the middle sand mould close to the lower sand mould.