CN218080289U

CN218080289U - Wind driven generator cabin deflection beam mold

Info

Publication number: CN218080289U
Application number: CN202222101933.2U
Authority: CN
Inventors: 赵金权; 滕轩中; 孙乐
Original assignee: Changzhou Huade Machinery Co ltd
Current assignee: Changzhou Huade Machinery Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-20
Anticipated expiration: 2032-08-10

Abstract

The utility model relates to the technical field of casting, in particular to an eccentric beam mould of a cabin of a wind driven generator, which comprises a sprue, an ingate and a cavity matched with the shape of a casting, wherein the sprue, the ingate and the cavity are sequentially connected, the top of the casting is provided with a riser, a plurality of first sand cores, second sand cores and third sand cores are sequentially arranged in the casting along the width direction of the casting, the first sand cores are horizontally arranged, the second sand cores and the third sand cores are vertically arranged, a notch at the bottom of the casting is provided with a chill, a third core head of the third sand core is positioned on the outer side of the chill and is attached to the chill, and the chill and the third core head are supported at the bottom of a body of the third sand core; the utility model discloses utilize and the cooling rate of breach shape assorted chill to accelerate breach department molten metal, avoid appearing shrinkage cavity and crackle, improved the foundry goods qualification rate, and utilize the chill to cool off the third psammitolite, avoid it to appear sintering phenomenon.

Description

Wind driven generator cabin deflection beam mold

Technical Field

The utility model relates to a casting technical field especially relates to an aerogenerator cabin inclined to one side roof beam mould.

Background

The wind driven generator cabin deflection beam is generally formed by casting, molten metal is introduced into a cavity by a pouring system formed by a pouring gate, a straight pouring gate, a cross pouring gate and an inner pouring gate to form a casting, but due to uneven wall thickness of the deflection beam, the cooling speed of the molten metal in the cavity is uneven, and shrinkage cavities are generated.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems that shrinkage cavities are generated due to uneven wall thickness of an inclined beam and uneven cooling speed of molten metal in a cavity in the prior art, the inclined beam mould for the wind driven generator cabin is provided.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a wind driven generator cabin inclined to one side roof beam mould is including the sprue that connects gradually, the ingate and with foundry goods shape assorted die cavity, the sprue top is connected with the runner, the bottom is connected with the ingate, molten metal flows into the die cavity and forms the foundry goods after getting into the sprue in proper order and the ingate through the runner.

The casting top is provided with a riser for exhausting and preventing shrinkage cavity, a plurality of first sand cores, a second sand core and a third sand core are sequentially arranged in the casting along the width direction of the casting, the first sand cores are horizontally arranged, the second sand cores and the third sand cores are vertically arranged, a notch at the bottom of the casting is provided with a chilling block, the chilling block is of an arc-shaped structure matched with the notch, the height and the extension of the chilling block and the length of the direction are consistent with the height and the extension direction of the notch and the length of the direction, the wall thickness of the notch is sharply changed, shrinkage cavity and cracks are easy to generate, the cooling speed of the molten metal at the position can be accelerated through the chilling block, and the shrinkage cavity and the cracks are avoided.

The third core head of the third sand core is also positioned in the notch, the third core head is attached to the outer side of the chilling block, the chilling block and the third core head are jointly supported at the bottom of the third sand core body, the chilling block can support and cool the third sand core body, the size of the sand core is smaller relative to the casting, in the flowing process of the metal liquid, the metal liquid gradually wraps the sand core to bake the sand core at high temperature, the temperature of the sand core is higher and higher, when the certain temperature is reached, the strength of the metal liquid can gradually decrease, the gap between sand grains is increased, the metal liquid permeates into the sand core to generate a sintering phenomenon, the difficulty in clearing is caused, on one hand, the chilling block at the notch can accelerate the cooling of the metal liquid at the notch to form a qualified casting, on the other hand, the third sand core can be cooled, and the overhigh temperature of the third sand core is avoided.

According to the technical scheme, the chilling blocks matched with the notch in shape are used for accelerating the cooling speed of the molten metal at the notch, shrinkage cavities and cracks are avoided, the qualified rate of castings is improved, and the chilling blocks are used for cooling the third sand core, so that the sintering phenomenon is avoided.

Further, the ingate has four, and four ingates distribute side by side along foundry goods length direction, and four ingates pass through sprue and sprue intercommunication, and the molten metal loops through sprue, sprue and ingate and gets into the die cavity, and beam length is far greater than the width partially, and its whole is approximate rectangular structure, and four ingates that set up along foundry goods length direction interval can make the molten metal more be even be full of the die cavity, reducible shrinkage cavity phenomenon.

Furthermore, a filter is arranged between the sprue and the cross sprue to filter impurities in molten metal, so that the qualified rate of castings can be improved.

Furthermore, the chilling block comprises two blocks, and the blocking structure has a better cooling effect than the integral structure.

Furthermore, the number of the first sand cores is three, the head of the second sand core body positioned in the middle is attached to the side wall of the chilling block, and the chilling block can cool the sand core, so that the sand core is prevented from being sintered.

Furthermore, there are two groups of the second sand cores, each group of the second sand cores includes a second core head and three second sand core bodies fixed on the second core head, there are three groups of the third sand cores, each group of the third sand cores includes a third core head and two third sand core bodies fixed on the third core head, the second sand cores and the third sand cores are distributed along the length direction of the casting, the casting is of an arc structure along the length direction, the arc makes the sand cores difficult to take out after the casting is formed, so the second sand cores and the third sand cores are grouped instead of fixing the six sand core bodies on the same core head, the third sand core body includes a large-diameter section and a small-diameter section, a step surface is formed between the three sand cores, and the diameter of the large-diameter section of the third sand core body is far larger than that of the second sand core body, which makes the third sand cores more difficult to take out than the second sand cores, so the third sand cores are divided into three groups, and each group includes two third sand core bodies.

The utility model has the advantages that: the utility model discloses utilize and the cooling rate of breach shape assorted chill to accelerate breach department molten metal, avoid appearing shrinkage cavity and crackle, improved the foundry goods qualification rate, and utilize the chill to cool off the third psammitolite, avoid it to appear sintering phenomenon.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

fig. 2 is a schematic structural diagram of a second viewing angle of the present invention;

FIG. 3 is a three-dimensional schematic view of the present invention with the castings and risers removed;

FIG. 4 is a top view of the present invention with castings and risers removed;

in the figure:

1. a sprue; 2. a cross gate; 3. an inner pouring channel; 4. casting; 5. a riser; 6. a first sand core; 601. a first core print; 602. a first sand core body; 7. a second sand core; 701. a second core print; 702. a second sand core body; 8. a third sand core; 801. a third core print; 802. a third sand core body; 9. performing cold iron; 901. a block body; 10. and (4) a filter.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The first embodiment is as follows:

as shown in fig. 1-4, the utility model relates to a wind driven generator cabin inclined to one side roof beam mould, including sprue 1, the ingate 3 that connect gradually and with 4 shape assorted die cavities of foundry goods, 1 tops of sprue are connected with the runner, and the bottom is connected with ingate 3, and the molten metal gets into sprue 1 and ingate 3 back flow into die cavity formation foundry goods 4 in proper order through the runner.

Ingate 3 has four, and four ingates 3 distribute side by side along 4 length direction of foundry goods, and four ingates 3 pass through 2 and the 1 intercommunication of sprue, and the molten metal loops through sprue 1, 2 and ingate 3 entering die cavities of sprue, and inclined to one side roof beam length is far greater than the width, and its whole is similar rectangular structure, and four ingates 3 along 4 length direction intervals of foundry goods can make the more even die cavity that is full of molten metal, reduce the shrinkage cavity phenomenon.

A filter 10 is arranged between the sprue 1 and the cross sprue 2 to filter impurities in molten metal, so that the qualified rate of the castings 4 can be improved.

The casting comprises a casting 4, wherein a riser 5 is arranged at the top of the casting 4 and used for exhausting and preventing shrinkage cavities, a plurality of first sand cores 6, second sand cores 7 and third sand cores 8 are sequentially arranged in the casting 4 along the width direction of the casting, the first sand cores 6 are horizontally arranged, the second sand cores 7 and the third sand cores 8 are vertically arranged, a notch at the bottom of the casting 4 is provided with a chiller 9, the chiller 9 is of an arc structure matched with the notch, the height, the extending direction and the length of the chiller 9 are all consistent with the height, the extending direction and the length of the notch, the wall thickness of the notch is changed rapidly, shrinkage cavities and cracks are easy to generate, the cooling speed of metal liquid at the notch can be accelerated through the chiller 9, the shrinkage cavities and the cracks are avoided, the chiller 9 comprises two blocks 901, and the blocking structure has a better cooling effect compared with the integral structure.

The third core head 801 of the third sand core 8 is also located in the notch, the third core head 801 is attached to the outer side of the chiller 9, the chiller 9 and the third core head 801 are jointly supported at the bottom of the third sand core body 802, the chiller 9 can support and cool the third sand core body 802, the size of the sand core is smaller than that of the casting 4, in the flowing process of the molten metal, the molten metal gradually wraps the sand core to bake the sand core at high temperature, the temperature of the sand core is higher and higher, when the temperature reaches a certain temperature, the strength of the sand core can be gradually reduced, the sand grain gap is enlarged, the molten metal permeates the sand core to generate a sintering phenomenon, and accordingly the cleaning is difficult, on one hand, the chiller 9 at the notch can accelerate the cooling of the molten metal to form the qualified casting 4, on the other hand, the third sand core 8 can be cooled, and the temperature is prevented from being too high.

The number of the first sand cores 6 is three, the head of the second sand core body 602 positioned in the middle is attached to the side wall of the chilling block 9, and the chilling block 9 can cool the sand core, so that the sintering phenomenon of the sand core is avoided.

The number of the second sand cores 7 is two, each group of the second sand cores 7 comprises a second core head 701 and three second sand core bodies 702 fixed on the second core head 701, the number of the third sand cores 8 is three, each group of the third sand cores 8 comprises a third core head 801 and two third sand core bodies 802 fixed on the third core head 801, the second sand cores 7 and the third sand cores 8 are distributed along the length direction of the casting 4, the casting 4 is of an arc-shaped structure along the length direction, and the arc-shaped structure enables the sand cores to be difficult to take out after the casting 4 is formed, so that the second sand cores 7 and the third sand cores 8 are grouped instead of fixing the six sand core bodies on the same core, the third sand core bodies comprise a large-diameter section and a small-diameter section, a step surface is formed between the large-diameter section and the small-diameter section 802, the diameter of the third sand core bodies 802 is far larger than that of the second sand core bodies 702, the third sand cores 8 are difficult to take out than the second sand cores 7, and the third sand cores 8 are divided into three groups, and each group comprises two third sand core bodies 802.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a aerogenerator cabin inclined to one side roof beam mould which characterized in that: including sprue (1), ingate (3) and with foundry goods (4) shape assorted die cavity that connect gradually, foundry goods (4) top is equipped with rising head (5), and foundry goods (4) are inside to be equipped with a plurality of first psammitolite (6), second psammitolite (7) and third psammitolite (8) along its width direction in proper order, first psammitolite (6) level sets up, and second psammitolite (7) and third psammitolite (8) are vertical to be set up, and foundry goods (4) bottom breach department is equipped with chill (9), and third core (801) of third psammitolite (8) are located chill (9) outside and laminate with chill (9), and chill (9) and third core (801) support in third psammitolite body (802) bottom.

2. The wind generator nacelle offset beam mold of claim 1, wherein: the four ingates (3) are distributed in parallel along the length direction of the casting (4), and the four ingates (3) are communicated with the sprue (1) through the horizontal runners (2).

3. The aerogenerator nacelle offset beam mold of claim 2, wherein: and a filter (10) is arranged between the sprue (1) and the cross runner (2).

4. The aerogenerator nacelle offset beam mold of claim 1, wherein: the chiller (9) comprises two blocks (901).

5. The aerogenerator nacelle offset beam mold of claim 1, wherein: the number of the first sand cores (6) is three, and the head of the first sand core body (601) positioned in the middle is attached to the side wall of the chilling block (9).

6. The aerogenerator nacelle offset beam mold of claim 1, wherein: the sand core structure is characterized in that the number of the second sand cores (7) is two, each group of the second sand cores (7) comprises a second core head (701) and three second sand core bodies (702) fixed on the second core heads (701), the number of the third sand cores (8) is three, and each group of the third sand cores (8) comprises a third core head (801) and two third sand core bodies (802) fixed on the third core head (801).