CN202984588U

CN202984588U - Casting system of casing for aerogenerator base

Info

Publication number: CN202984588U
Application number: CN 201220151255
Authority: CN
Inventors: 应亮; 宋贤发; 傅明康
Original assignee: RIYUE HEAVY INDUSTRY CO LTD
Current assignee: RIYUE HEAVY INDUSTRY CO LTD
Priority date: 2012-04-12
Filing date: 2012-04-12
Publication date: 2013-06-12
Anticipated expiration: 2022-04-12

Abstract

The utility model discloses a casting system of casing for an aerogenerator base, comprising a sprue (1) and a cast gate (2), wherein the sprue (1) and the flow gate (2) are communicated with each other by a pouring gate, a filtrating device is arranged on the pouring grate. The casting system is characterized in that: the pouring gate orderly comprises a cross gate (3), a transition sprue (4) and a transition cross gate (5) which are communicated with each other, the sprue (1) is communicated with the cross gate (3), a casting pipe (6) is arranged between the transition cross gate (5) and the cast gate (2), and the cast gate (2) is arranged on the bottom of a flange (7) o the base casting. The casting system of the utility model makes sure stationarity of whole mold filling, reduces turbulent flow, eddy and cutting flow in a molten metal casting process, and reduces broken sand and slag inclusion.

Description

The running gate system of base of wind driven generator foundry goods

Technical field

The utility model belongs to the casting processing technique field, is specifically the running gate system of base of wind driven generator.

Background technology

﹠lt, b TranNum="60" ﹠gt, ﹠lt, / b ﹠gt, base is the part of wind power generating set, weight reaches 13000kg, the internal structure of base is comparatively complicated, and the acceptance requirement of the base finished product of producing is very high, whole product all need to carry out UT MT flaw detection, also need to carry out the inspection of body jacking, therefore base technological requirement when cast is very high, original running gate system is that pouring basin directly is switched to the ingate that is positioned at base casting flange dish top after by one deck filter, be positioned at the top of base casting flange dish due to ingate, in the time of can causing filling type, molten iron comes down in torrents to the ring flange bottom, make that to fill type not steady, can cause molten iron constantly to roll, splash, make magnesium, rare earth, silicon, manganese, the secondary oxidations such as iron, the metal oxide and the sulfide that produce, free graphite floats to cast(ing) surface on together, or be trapped in dead angle in foundry goods and core lower surface etc. and locate, produce broken sand and slag inclusion in foundry goods, fill type and steadily also can not make molten metal produce turbulent flow, eddy current or cutout in casting process, easily be involved in gas, formation is involved in pore in foundry goods, and these problems all can make the quality of base foundry goods influenced, cause Product Acceptance Review defective.

The utility model content

Technical problem to be solved in the utility model is, gives security that whole to fill type steady, reduces molten metal and produces turbulent, eddy current or cutout in casting process, reduces the running gate system of the base of wind driven generator foundry goods of broken sand and slag inclusion.

For solving the problems of the technologies described above, the running gate system of the base of wind driven generator foundry goods that the utility model provides, comprise sprue, ingate, sprue is connected by running channel with ingate, running channel is provided with filter, described running channel is provided with cross gate, transition sprue, the transition cross gate that is connected successively, sprue is connected with cross gate, be provided with gate spool between transition cross gate and ingate, an end that is to say gate spool is communicated with the transition cross gate, the other end of gate spool is communicated with ingate, and ingate is located at the bottom of the ring flange of base foundry goods.

After adopting above structure, the utility model compared with prior art has advantages of following:

Ingate is positioned at the bottom of base casting flange dish, molten iron when filling type is injected from the bottom of ring flange, make molten iron increase stably in ring flange, flow into again casting mold other positions, can guarantee that whole to fill type steady, reduce generation turbulent flow, eddy current or the cutout of molten metal in casting process, make to be not easy to be involved in gas when filling type, reduce the pore that is involved in foundry goods; Fill type steady, make molten iron be not easy rolling, splash, reduce the secondary oxidation of metal, reduce broken sand and slag inclusion.

As improvement, described running channel has two, article two, running channel is the symmetrical left and right sides of being located at foundry goods, article two, running channel includes cross gate, transition sprue and the transition cross gate that is connected successively, sprue is connected respectively with the cross gate of two running channels, article two, running channel, can make the iron flow that sprue injects increase, and improves poring rate.

As further improvement, the filter that the liquid on described every running channel is flowed through has two.

as preferably, the filter that liquid on described every running channel is flowed through has two to refer to that cross gate comprises cross gate and lower cross gate, the connectivity part of upper cross gate and lower cross gate is provided with the first filter, refer to that namely cross gate is connected with a side of the first filter, lower cross gate is connected with the opposite side of the first filter, be equipped with the second filter between transition cross gate and several gate spools, that is to say that the transition cross gate is connected with a side of the second filter, several gate spools are connected with the opposite side of the second filter, be provided with in the first filter and the second filter for the screen pack that filters molten iron, the molten iron of every running channel two-layer screen pack of all need flowing through, more guaranteed the degree of purity of molten iron.

As further improving again, described gate spool is the refractory pipe, the diameter of gate spool is minimum, the impact velocity of the molten iron in gate spool is the fastest, and impulsive force is maximum, if adopt the core pipeline, probably wash away sand mold, cause unnecessary loss, gate spool adopts the refractory pipe, and the thing that can avoid molten iron to wash away sand mold occurs.

Description of drawings

Fig. 1 is the structural representation of the running gate system of the utility model base of wind driven generator foundry goods;

Fig. 2 is the polycrystalline substance schematic diagram of the running gate system of the utility model base of wind driven generator foundry goods.

Wherein, 1, sprue; 2, ingate; 3, cross gate; 3.1, upper cross gate; 3.2, lower cross gate; 4, transition sprue; 5, transition cross gate; 6, gate spool; 7, ring flange; 8, the first filter; 9, the second filter.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.

by Fig. 1, the structural representation of the running gate system of the utility model base of wind driven generator foundry goods shown in Figure 2 as can be known, it comprises sprue 1, ingate 2, sprue 1 is connected by running channel with ingate 2, running channel is provided with filter, described running channel is provided with the cross gate 3 that is connected successively, transition sprue 4, transition cross gate 5, sprue 1 is connected with cross gate 3, be provided with gate spool 6 between transition cross gate 5 and ingate 2, one end of gate spool 6 is communicated with transition cross gate 5, the other end of gate spool 6 is communicated with ingate 2, ingate 2 is located at the bottom of the ring flange 7 of base foundry goods, molten iron imports from sprue 1, flow through successively cross gate 3, transition sprue 4, transition cross gate 5 and gate spool 6, flow in the ring flange 7 of base foundry goods by ingate 2, flow in other parts of casting mold by ring flange 7 again.

Described running channel has two, and two running channels are the symmetrical left and right sides of being located at foundry goods, and two running channels include cross gate 3, the transition sprue 4 and transition cross gate 5 that is connected successively, and sprue 1 is connected respectively with the cross gate 3 of two running channels.

The filter that liquid on described every running channel is flowed through has two.

The filter that liquid on described every running channel is flowed through has two to refer to that cross gate 3 comprises cross gate 3.1 and lower cross gate 3.2, be provided with the first filter 8 between upper cross gate 3.1 and lower cross gate 3.2, be equipped with the second filter 9 between transition cross gate 5 and a plurality of porcelain tube 6, refer to that namely cross gate 3.1 is connected with a side of the first filter 8, lower cross gate 3.2 is connected with the opposite side of the first filter 8; Transition cross gate 5 is connected with a side of the second filter 9, and several gate spools 6 are connected with the opposite side of the second filter 9, is equipped with in the first filter 8 and the second filter 9 for the screen pack that filters molten iron.

Described gate spool 6 is the refractory pipe, and the quantity of gate spool 6 is 24,12 of every running channels, all connect and transition cross gate 5 and ingate 2 between.

Below only use better example with regard to the utility model and made explanation, but can not be interpreted as it is limitations on claims, structure of the present utility model can have other to change, and can be not only two as the quantity of running channel; Filter can be not only two-layer; The quantity of gate spool 6 can change etc., is not limited to said structure.In a word, all various variations of doing in the protection domain of independent claims of the present utility model are all in protection domain of the present utility model.

Claims

1. the running gate system of a base of wind driven generator foundry goods, comprise sprue (1), ingate (2), sprue (1) is connected by running channel with ingate (2), running channel is provided with filter, it is characterized in that: described running channel is provided with cross gate (3), the transition sprue (4) and transition cross gate (5) that is connected successively, sprue (1) is connected with cross gate (3), be provided with gate spool (6) between transition cross gate (5) and ingate (2), ingate (2) is located at the bottom of the ring flange (7) of base foundry goods.

2. the running gate system of base of wind driven generator foundry goods according to claim 1, it is characterized in that: described running channel has two, article two, running channel includes cross gate (3), the transition sprue (4) and transition cross gate (5) that is connected successively, and sprue (1) is connected respectively with the cross gate (3) of two running channels.

3. the running gate system of base of wind driven generator foundry goods according to claim 1 and 2, it is characterized in that: the filter that the liquid on described every running channel is flowed through has two.

4. the running gate system of base of wind driven generator foundry goods according to claim 3, it is characterized in that: the filter that the liquid on described every running channel is flowed through has two to refer to that cross gate (3) comprises cross gate (3.1) and lower cross gate (3.2), be provided with the first filter (8) between upper cross gate (3.1) and lower cross gate (3.2), be equipped with the second filter (9) between transition cross gate (5) and several gate spools (6).

5. the running gate system of base of wind driven generator foundry goods according to claim 1, it is characterized in that: described gate spool (6) is the refractory pipe.