Molding structure for casting of electric shovel tensioning front guide wheel casting
By designing a mold structure for electric shovel tightening of the leading wheel casting, we ensure that the iron liquid can be replenished and shrinked in time during the casting process, solving the cracks and thin-wall cracks caused by insufficient watering of the flower hole interval sections, and improving the casting quality and production pass rate.
Patent Information
- Application Number
- CN202420889083.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-26
AI Technical Summary
During the casting process, the castings are not poured in the flower hole interval section, which often leads to cracks in the castings, which seriously affects the casting quality and production pass rate.
A molded structure for electric shovel tightening of the leading wheel castings is designed, including the leading wheel model, cylinder model, cylinder thickening section model, inner runner model, transverse runner model and vertical runner model. Through the fixed connection of these structures, it is ensured that the iron liquid can be replenished and shrinked in time during the casting process to achieve sequential solidification.
It effectively eliminates the problem of insufficient iron shrinkage when pouring the flower hole interval section, avoids the occurrence of casting cracks and thin-wall cracks, and significantly improves the quality and production pass rate of castings.
Smart Images
Figure CN222790568U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of mechanical casting, in particular to a die assembly structure used for casting of a tensioned front guide wheel of an electric shovel. Background Art
[0002] The manufacture of a tension front guide wheel of an electric shovel requires first using a casting process to produce a casting blank, and then machining it. However, since the tension front guide wheel of the electric shovel is in the shape of a hollow flower hole, the casting production is difficult, especially the setting of the pouring system during casting, that is, the matching setting of the opposite runner, the cross runner, the inner runner and the riser. The conventional four vertical runners are directly arranged on the casting. In the flower hole interval section of the tension front guide wheel casting of the electric shovel, the casting often cracks due to insufficient pouring to form thin-wall cracks, which seriously affects the quality of the casting and the production qualification rate of the casting. Utility Model Content
[0003] The utility model provides a die assembly structure for casting the tensioning front guide wheel of the electric shovel to solve the technical problem that the flower hole interval section of the electric shovel often cracks due to insufficient pouring to form thin-wall cracks in the casting during casting production.
[0004] The utility model adopts the following technical solutions:
[0005] A mold assembly structure for casting a front guide wheel casting for tensioning an electric shovel comprises a front guide wheel model, wherein the front guide wheel model is symmetrically and evenly provided with flower holes on the upper and lower sides, a cylinder model is arranged in the middle of the front guide wheel model, a cylinder thickening section model is arranged on the top of the cylinder model, an ingrate model is respectively arranged on both sides of the cylinder thickening section model along the diameter direction, a cross runner model is arranged on the ingrate model, and a vertical runner model is arranged in the middle of the cross runner model.
[0006] The front guide wheel model, the cylinder model, the cylinder thickening section model, the inner runner model, the horizontal runner model, and the vertical runner model are sequentially fixedly connected to each other to facilitate the circulation of molten iron during casting molding and pouring.
[0007] In another step, a pouring cup is also provided on the top of the vertical runner model to facilitate the molten iron to enter the pouring system when the casting is poured.
[0008] When the utility model is implemented, a die assembly structure for the electric shovel tensioning front guide wheel casting is manufactured according to the technical solution of the utility model for casting production. Since the utility model sets a cylindrical thickening section model on the top of the cylindrical model above the front guide wheel model, during the pouring process of the electric shovel tensioning front guide wheel casting, various parts, especially the flower hole interval section of the electric shovel tensioning front guide wheel casting, can be timely compensated for shrinkage and achieve sequential solidification. Qualified casting quality is obtained. After the casting is produced, it is only necessary to machine off the excess part of the cylindrical thickening section on one side of the front guide wheel when the casting is machined.
[0009] The utility model has the following beneficial effects:
[0010] The utility model has a reasonable die structure and is easy to implement. Compared with the conventional method of setting 4 vertical runners on the casting (see attached Figure 3 and Figure 4 ), and compared with the mold assembly structure directly arranged on the casting, it can eliminate the problem of cracking of the casting to form thin-wall cracks due to the inability of the molten iron to be compensated for shrinkage when pouring the flower hole interval section of the front guide wheel casting of the electric shovel tensioning, and can effectively improve the quality of the casting and the production qualification rate of the casting. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the module structure of the utility model;
[0012] Figure 2 yes Figure 1 A top view schematic diagram of
[0013] Figure 3 and Figure 4 It is a schematic diagram of the conventional pouring die assembly structure before the improvement of the utility model.
[0014] In the figure: 1-front guide wheel model, 2-flower hole, 3-cylinder model, 4-cylinder thickening section model, 5-ingate model, 6-cross runner model, 7-vertical runner model, 8-gate cup. DETAILED DESCRIPTION
[0015] like Figure 1 and Figure 2 As shown, the mold assembly structure for casting the front guide wheel casting for tensioning an electric shovel described in this embodiment includes a front guide wheel model 1, the front guide wheel model 1 is symmetrically and evenly provided with flower holes 2 on the upper and lower sides, a cylinder model 3 is arranged in the middle of the front guide wheel model 1, a cylinder thickening section model 4 is arranged on the top of the cylinder model 3, and the cylinder thickening section model 4 is respectively provided with an inner runner model 5 on both sides along the diameter direction, a cross runner model 6 is arranged on the inner runner model 5, and a vertical runner model 7 is arranged in the middle of the cross runner model 6.
[0016] The front guide wheel model 1, the cylinder model 3, the cylinder thickening section model 4, the inner runner model 5, the horizontal runner model 6, and the vertical runner model 7 are fixedly connected to each other in sequence to facilitate the circulation of molten iron during casting.
[0017] Furthermore, a pouring cup 8 is provided on the top of the vertical runner model 7 to facilitate the molten iron to enter the pouring system when the casting is poured.
[0018] When the utility model is implemented, a die assembly structure for the electric shovel tensioning front guide wheel casting is manufactured according to the technical solution of the utility model for casting production. Since the utility model sets a cylindrical thickening section model on the top of the cylindrical model above the front guide wheel model, during the pouring process of the electric shovel tensioning front guide wheel casting, various parts, especially the flower hole interval section of the electric shovel tensioning front guide wheel casting, can be timely compensated for shrinkage and achieve sequential solidification. Qualified casting quality is obtained. After the casting is produced, it is only necessary to machine off the excess part of the cylindrical thickening section on one side of the front guide wheel when the casting is machined.
Claims
1. A die assembly structure for casting a tensioning front guide wheel of an electric shovel, characterized in that: The front guide wheel model (1) comprises flower holes (2) symmetrically and evenly arranged on the upper and lower surfaces of the front guide wheel model (1), a cylinder model (3) is arranged in the middle of the front guide wheel model (1), a cylinder thickening section model (4) is arranged on the top of the cylinder model (3), an inner runner model (5) is arranged on both sides of the cylinder thickening section model (4) along the diameter direction, a horizontal runner model (6) is arranged on the inner runner model (5), and a vertical runner model (7) is arranged in the middle of the horizontal runner model (6); The front guide wheel model (1), the cylinder model (3), the cylinder thickening section model (4), the inner runner model (5), the horizontal runner model (6), and the vertical runner model (7) are fixedly connected to each other in sequence to facilitate the circulation of molten iron during casting molding and pouring.
2. The mold assembly structure for casting the front guide wheel of the electric shovel according to claim 1 is characterized in that: The top of the vertical runner model (7) is also provided with a pouring cup (8) to facilitate the molten iron to enter the pouring system when the casting is poured.