Planetary flange casting double-layer pouring system structure

Abstract

The utility model relates to the technical field of casting processing, in particular to a planetary flange casting double-layer pouring system structure which comprises a bottom-layer flow gate and an upper-layer flow gate. A plurality of bottom-layer flow gates are in through connection with the end surface of the planet carrier shaft hole; the plurality of upper-layer flow gates are connected to the flange surface of the casting in a penetrating manner; the plurality of bottom-layer flow gates and the plurality of upper-layer flow gates are in through connection with the cross gate, and the cross gate is in through connection with the straight gate; and the other end of the sprue is communicated and connected with a sprue cup. The flange face of the integrated planet carrier structure serves as a casting lower plane; a double-layer bottom pouring type pouring system is adopted, inner pouring gates are evenly distributed on the end face of a planet carrier shaft hole and the bottom plane of a flange structure, turbulent flow and air entrapment are avoided, and the risk that primary oxidizing slag enters a cavity in the pouring process is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing, in particular to a double-layer pouring system structure of a planetary flange casting. Background Art

[0002] The double-layer pouring system of planetary flange casting integrates the planetary carrier and flange into one. It has a complex structure, high dimensional accuracy requirements, large casting profile, and a long pouring process. The bottom plane of the large flange is prone to defects such as cold beans, cold shuts, air holes, and slag inclusions. Utility Model Content

[0003] The purpose of the utility model is to provide a double-layer pouring system structure for a planetary flange casting in response to the defects and shortcomings of the prior art, in which the flange surface of the integrated planetary frame structure is used as the casting lower plane; a double-layer bottom pouring pouring system is adopted, and the inner gates are evenly distributed on the end faces of the planetary frame shaft holes and the bottom plane of the flange structure, so as to avoid turbulence and air entrainment, and effectively reduce the risk of primary oxidation slag entering the mold cavity during the pouring process; the utility model has the advantages of simple structure, convenient operation, high economic benefits, etc., and can be widely used and promoted in the research and development and production of large-profile flange castings.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a bottom layer ingates and an upper layer ingates; several bottom layer ingates are through-connected to the end face of the planetary carrier shaft hole; several upper layer ingates are through-connected to the flange surface of the casting; and several bottom layer ingates and upper layer ingates are through-connected to the cross runner, and the cross runner is through-connected to the straight runner; the other end of the straight runner is through-connected with a pouring cup.

[0005] Preferably, there are four gates in the bottom layer.

[0006] Preferably, there are six upper layer gates.

[0007] Preferably, filter plates are provided at the connections between the bottom layer ingate, the upper layer ingate and the runner.

[0008] Preferably, a gate cavity is provided at the connection between the horizontal runner and the vertical runner.

[0009] Preferably, the ratio of ∑Avert, ∑Ahorizont and ∑Ainner is 1:1.4:1.6, wherein ∑Ainner is ∑Abottom layer ingates + ∑Aupper layer ingates, wherein ∑Abottom layer ingates is the sum of the total cross-sectional areas of the bottom layer ingates at the minimum, ∑Aupper layer ingates is the sum of the total cross-sectional areas of the upper layer ingates at the minimum, ∑Avert is the sum of the total cross-sectional areas of the straight runner at the minimum, and ∑Ahorizont is the sum of the total cross-sectional areas of the horizontal runner at the minimum.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a double-layer pouring system structure for a planetary flange casting, and uses the flange surface of the integrated planetary frame structure as the casting lower plane; a double-layer bottom pouring pouring system is adopted, and the inner gates are evenly distributed on the end faces of the planetary frame shaft holes and the bottom plane of the flange structure, avoiding turbulence and air entrainment, and effectively reducing the risk of primary oxidation slag entering the mold cavity during the pouring process; and the utility model has the advantages of simple structure, easy operation, and high economic benefits, and can be widely used and promoted in the research and development and production of large-profile flange castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model in an inverted state.

[0012] Description of reference numerals:

[0013] Casting flange surface 1, planet carrier shaft hole end surface 2, bottom layer ingates 3, upper layer ingates 4, runner 5, filter plate 6, gate cup 7, gate nest 8, sprue 9. DETAILED DESCRIPTION

[0014] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the utility model.

[0015] like Figure 1 As shown, this specific embodiment adopts the following technical scheme: it includes a bottom ingates 3 and an upper ingates 4; four bottom ingates 3 are connected to the planet carrier shaft hole end face 2; six upper ingates 4 are connected to the casting flange surface 1; and the four bottom ingates 3 and the six upper ingates 4 are connected to the cross runner 5, and the connection is provided with a filter plate 6, the cross runner 5 is connected to the straight runner 9, and the connection is provided with a gate nest 8; the straight casting The other end of runner 9 is connected with gate cup 7; the ratio of ∑A vertical, ∑A horizontal and ∑A internal is 1:1.4:1.6, wherein ∑A internal is ∑A bottom internal gate + ∑A upper internal gate, wherein ∑A bottom internal gate is the sum of the total cross-sectional area of ​​3 bottom internal gates at the smallest point, ∑A upper internal gate is the sum of the total cross-sectional area of ​​4 upper internal gates at the smallest point, ∑A vertical is the sum of the total cross-sectional area of ​​9 straight runner at the smallest point, ∑A horizontal is the sum of the total cross-sectional area of ​​5 horizontal runner at the smallest point.

[0016] When using the utility model, an open pouring system is adopted, in which the ratio of ∑A vertical, ∑A horizontal, and ∑A internal is 1:1.4:1.6. After the molten iron is poured from the pouring cup through the straight runner 9, the horizontal runner 5 and the filter plate 6, it is first filled into the planetary structure cavity from the four bottom inner gates 3, and then converges with the filling liquid surface entering the flange surface 1 from the six upper inner gates 4 in about 10 seconds and rises steadily until the pouring is completed, avoiding turbulence and air entrainment, and effectively reducing the risk of primary oxidation slag entering the cavity during the pouring process.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a double-layer pouring system structure for a planetary flange casting, and uses the flange surface of the integrated planetary frame structure as the casting lower plane; a double-layer bottom pouring pouring system is adopted, and the inner gates are evenly distributed on the end faces of the planetary frame shaft holes and the bottom plane of the flange structure, avoiding turbulence and air entrainment, and effectively reducing the risk of primary oxidation slag entering the mold cavity during the pouring process; and the utility model has the advantages of simple structure, easy operation, and high economic benefits, and can be widely used and promoted in the research and development and production of large-profile flange castings.

[0018] For those skilled in the art, they can modify the technical solutions recorded in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A double-layer pouring system structure for planetary flange castings, characterized in that: It comprises a bottom layer ingates (3) and an upper layer ingates (4); a plurality of bottom layer ingates (3) are connected through-connected to the end face (2) of the planet carrier shaft hole; a plurality of upper layer ingates (4) are connected through-connected to the casting flange face (1); and a plurality of bottom layer ingates (3) and upper layer ingates (4) are connected through-connected to a cross runner (5), and the cross runner (5) is connected through-connected to a sprue (9); and a pouring cup (7) is connected through-connected to the other end of the sprue (9).

2. A double-layer pouring system structure for planetary flange casting according to claim 1, characterized in that: There are four bottom layer inner gates (3).

3. A double-layer pouring system structure for planetary flange casting according to claim 2, characterized in that: There are six upper layer gates (4).

4. A double-layer pouring system structure for planetary flange casting according to claim 1, characterized in that: Filter plates (6) are provided at the connection points between the bottom layer ingate (3), the upper layer ingate (4) and the runner (5).

5. The double-layer pouring system structure of a planetary flange casting according to claim 1, characterized in that: A gate cavity (8) is provided at the connection between the horizontal runner (5) and the vertical runner (9).

6. A double-layer pouring system structure for planetary flange casting according to claim 3, characterized in that: The ratio of ∑A vertical, ∑A horizontal and ∑A internal is 1:1.4:1.6, among which ∑A internal is ∑A bottom layer internal gate + ∑A upper layer internal gate.

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