Pouring cup for adaptive flange of wind generating set

Abstract

The pouring cup comprises a cup body, the cup body is provided with an inner cavity, one part of the bottom of the cup body is a flat bottom, the other part of the bottom of the cup body is a slope bottom connected with the flat bottom, an open liquid inlet is formed in the upper portion of the cup body, and a liquid outlet is formed in the flat bottom position of the lower portion of the cup body. A separated funnel-shaped discharging hopper is arranged at the position of the liquid outlet, the discharging hopper is connected with the cup body through a bolt, the discharging end of the discharging hopper abuts against a sprue, a protruding blocking body is arranged at the intersection of the slope bottom and the flat bottom of the cup body, and the blocking body is arranged in the length direction of the intersection of the slope bottom and the flat bottom. The upper end of the blocking body is lower than the liquid inlet and is in an arc shape, a movable gate is arranged in front of the blocking body and moves in the depth direction of the cup body, bay flow is formed through the gate and the blocking body, slag is blocked above through the gate, and relatively clean liquid metal is obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry technology field especially relates to a sprue cup for wind generating set adaptation flange. BACKGROUND

[0002] One of the main reasons for producing unqualified products for large castings such as wind generating set adaptation flange is inclusion defects, which can cause a large number of quality, cost and efficiency problems in casting production.

[0003] The sprue cup is a very important part in the pouring system, including cup body, the cup body has inner cavity, the bottom part of the cup body is flat bottom, the other part is the slope bottom connected with the flat bottom, the upper part of the cup body is open liquid inlet, the flat bottom position of the lower part of the cup body has liquid outlet, the position of the liquid outlet is provided with the separated funnel-shaped discharge hopper, the discharge hopper is connected with the cup body through bolt, the discharge end of the discharge hopper abuts with the sprue, but in the prior art, the sprue cup cannot remove a large amount of slag and other inclusions in the liquid metal during pouring, so that the probability of slag inclusion and inclusion defects is high, and the qualified rate of castings is low. SUMMARY

[0004] The utility model discloses a sprue cup for wind generating set adaptation flange, which overcomes the defects in the prior art.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is to design a sprue cup for wind generating set adaptation flange, which includes a cup body having an inner cavity. The bottom part of the cup body is flat bottom, and the other part is the slope bottom connected with the flat bottom. The upper part of the cup body is open liquid inlet. The flat bottom position of the lower part of the cup body has liquid outlet. The position of the liquid outlet is provided with the separated funnel-shaped discharge hopper. The discharge hopper is connected with the cup body through bolt. The discharge end of the discharge hopper abuts with the sprue. The features are that the intersection of the slope bottom and the flat bottom of the cup body is provided with a protruding blocking body. The blocking body is arranged in the length direction of the intersection of the slope bottom and the flat bottom. The upper end of the blocking body is lower than the liquid inlet and is in circular arc shape. A movable gate is arranged in front of the blocking body and moves along the depth direction of the cup body.

[0006] Further preferred technical solutions are that the discharge hopper is in the shape of a cone.

[0007] Further preferred technical solutions are that the inner cavity of the cup body and the inner cavity of the discharge hopper are provided with an iron sand coating layer. The iron sand coating layer has an upper cavity body consistent with the cup body and a lower cavity body matched with the discharge hopper.

[0008] Further preferably, the cup body is provided with a plurality of reinforcing ribs arranged along the height direction.

[0009] The advantages and beneficial effects of the present application are as follows: by using the principle that the slag has low density and generally floats on the upper part of the liquid metal, the eddy current is formed by the gate and the blocking body, the slag is blocked above by the gate, the liquid metal passes below the gate and then enters the discharge hopper through the upper end of the blocking body, so that relatively clean liquid metal can be obtained.

[0010] After being filtered by the cylindrical filter piece, the liquid metal enters the mold cavity of the wind power iron mold, so that the clamping gap is fully ensured, the occurrence of sand inclusion is effectively reduced through the backflushing plate and the pouring nest, the space and resin sand are saved through the cylindrical filter piece, the product sand inclusion is solved, the space is saved by 20%, the sand-iron ratio is reduced by 10%, the operation is simple, there is no assembly gap, and the slag filtering effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a front view of the present application;

[0012] Fig. 2 It is an axonometric view of the sprue cup of the present application;

[0013] Fig. 3 It is a sectional view of the sprue cup of the present application;

[0014] In the figure: 10, sprue cup; 11, cup body; 12, iron sand coating layer; 13, blocking body; 14, gate; 15, slope bottom; 16, reinforcing rib; 17, supporting leg; 18, discharge hopper; 20, direct sprue; 21, receiving flange; 30, backflushing plate; 40, filter piece; 50, pouring nest. DETAILED DESCRIPTION

[0015] The specific implementation of the present application will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the present application, and cannot be used to limit the protection scope of the present application.

[0016] REFERENCE Figs. 1-3A gate cup for a wind turbine adapter flange, in one embodiment, the cup body 11 is a square cup body, the cup body 11 has an inner cavity, so that the cup body 11 forms a thin-walled box, a part of the bottom of the cup body 11 is a flat bottom, and another part is a slope bottom 15 connected with the flat bottom, which guides the flow of liquid metal, so that the liquid metal can flow along the slope bottom 15 into the flat bottom, the upper part of the cup body 11 is an open liquid inlet, the liquid metal enters the cup body 11 from the liquid inlet, and then gathers along the slope bottom 15 to the flat bottom of the cup body 11, the flat bottom position of the lower part of the cup body 11 has a liquid outlet, the liquid metal flows out from the liquid outlet, in this embodiment, the liquid outlet position is provided with a separate funnel-shaped discharge hopper 18, the discharge hopper 18 is connected with the cup body 11 through bolts, through the separate structure, the discharge hopper 18 is convenient to disassemble and replace, and at the same time, since the discharge hopper 18 is irregular in shape, the discharge hopper is convenient to process by being separately arranged;

[0017] The discharge hopper 18 is a cone, so that the discharge hopper 18 has good flow guiding effect, the inflow speed of the liquid metal is convenient to adjust, and the turbulence is reduced;

[0018] The inner cavity of the cup body 11 and the inner cavity of the discharge hopper 18 are connected to form a complete gate cup 10 cavity, which has good flow guiding effect on the liquid metal;

[0019] The intersection of the slope bottom 15 and the flat bottom of the cup body 11 is provided with a protruding blocking body 13 arranged in the length direction of the intersection of the slope bottom 15 and the flat bottom, the upper end of the blocking body 13 is lower than the liquid inlet and is in a circular arc shape, a movable gate 14 is arranged in front of the blocking body 13 and moves along the depth direction of the cup body 11, by using the principle that slag generally floats on the upper part of the liquid metal due to its low density, the current is formed by the gate 14 and the blocking body 13, the slag is blocked above by the gate 14, and then the liquid metal passes through the upper end of the blocking body 13 and enters the discharge hopper 18, so that relatively clean liquid metal can be obtained.

[0020] The gate 14 is driven by a winch, the lower end of the steel wire rope of the winch is connected with the upper end of the gate 14, the gate 14 is lifted by the winch, and when the winch moves in the opposite direction, the gate 14 descends under the action of its own gravity.

[0021] As Fig. 3As shown, the inner cavity of the cup body 11 and the inner cavity of the discharge hopper 18 are provided with a layer of iron sand coating 12, the iron sand coating 12 cooperates with the inner cavity of the cup body 11 and the inner cavity of the discharge hopper 18, the iron sand coating 12 has an upper cavity body matched with the cup body 11, and a lower cavity body matched with the discharge hopper 18, the upper cavity body and the lower cavity body of the iron sand coating 12 are divided into two separate cavities, the iron sand coating 12 can effectively prevent the liquid metal from slagging in the cup body 11, prolong the service life of the cup body 11, thereby reducing the manufacturing cost of the casting.

[0022] In order to improve the strength of the cup body 11, the outer periphery of the cup body 11 is provided with a plurality of reinforcing ribs 16 placed in the height direction, and the plurality of reinforcing ribs 16 cover the outer periphery of the cup body 11, so that the cup body 11 can bear a large amount of weight of the metal liquid;

[0023] The cup body 11 is also provided with a group of legs 17 for favorably supporting the cup body 11, so that the cup body 11 can be stably placed on the sand box;

[0024] The discharge end of the discharge hopper 18 abuts against the sprue 20, the lower end of the sprue 20 is provided with a filter sheet 40, the sprue 20 is connected with the core hole of one end of the filter sheet 40, and the other end of the core hole of the filter sheet 40 has a pouring nest 50.

[0025] In one embodiment, the sprue 20 is composed of multiple sprues, the sprue 20 is a straight pipe, two sprues 20 are connected through a receiving flange 21, the pipe diameter of the lower end sprue 20 is smaller than that of the upper end sprue 20, the bottom of the sprue 20 is provided with a backflushing plate 30, the backflushing plate 30 is disc-shaped and has a core hole in the middle part for communication with the sprue 20, the hole diameter of the core hole is the same as the pipe diameter of the sprue 20, the lower part of the backflushing plate 30 is a filter sheet 30, the filter sheet 30 includes a circular filter body, the filter body has a core hole penetrating through the filter body, the filter body has a plurality of honeycomb-shaped filter holes in communication with each other, the solution can be filtered through the core hole from the inside of the filter body to the outside of the filter body, the backflushing plate 30 is connected with one end of the core hole of the filter sheet 40 and forms a closed end of one end of the filter sheet 40, the casting liquid flows into the core hole of the filter sheet 40, the other end of the filter sheet 40 is provided with a pouring nest 50, the pouring nest 50 has an annular groove for placing the filter sheet 40, the core part of the pouring nest 50 has a protrusion protruding into the core hole of the filter sheet 40, and the pouring nest 50 forms a closed end of the other end of the filter sheet 40.

[0026] The molten iron flows from the sprue 20, filters through the cylindrical filter sheet 40 and enters the cavity of the wind power iron mold, which fully ensures the assembly gap, effectively reduces the occurrence of sand inclusion through the backflushing plate 30 and the pouring nest 50, saves space and resin sand through the cylindrical filter sheet 40, simultaneously solves the product slag inclusion, saves space by 20%, reduces the sand-iron ratio by 10%, is simple to operate, has no assembly gap, and has good filtering slag effect.

[0027] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0028] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A pouring cup for a wind turbine adapter flange, comprising a cup body, the cup body having an inner cavity, a flat bottom portion of the bottom of the cup body, and a sloped bottom portion connected to the flat bottom, the upper portion of the cup body being an open liquid inlet, the flat bottom portion of the lower portion of the cup body being provided with a liquid outlet, a separate funnel-shaped discharge hopper being provided at the liquid outlet, the discharge hopper being connected to the cup body by bolts, the discharge end of the discharge hopper being in contact with a sprue, and characterized in that: A protruding blocking body is provided at the intersection of the sloped bottom and the flat bottom of the cup body. The blocking body is arranged in the length direction of the intersection of the sloped bottom and the flat bottom. The upper end of the blocking body is lower than the liquid inlet and the upper end of the blocking body is arc-shaped. A movable gate is provided in front of the blocking body, and the gate moves along the depth direction of the cup body.

2. A pouring cup for a wind turbine adapter flange according to claim 1, characterized in that: The discharging hopper is cone-shaped.

3. A pouring cup for a wind turbine adapter flange according to claim 1, characterized in that: An iron sand coating layer is provided on the inner cavity of the cup body and the inner cavity of the discharge hopper. The iron sand coating layer has an upper cavity that matches the cup body and a lower cavity that matches the discharge hopper.

4. A pouring cup for a wind turbine adapter flange according to claim 3, characterized in that: The outer periphery of the cup body is provided with a plurality of reinforcing ribs placed along the height direction.

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