Bearing seat casting device

Abstract

The utility model discloses a bearing seat casting device which comprises an upper box sand mold, a lower box sand mold and cavities, the upper box sand mold and the lower box sand mold are distributed in an up-down symmetrical mode, the cavities are arranged in the upper box sand mold and the lower box sand mold, chilling blocks are arranged on the periphery of the cavities, and a dead head and a sprue are arranged at the top of the upper box sand mold. Shells are respectively arranged outside the upper box sand mold and the lower box sand mold, and the shells of the upper box sand mold and the lower box sand mold are fixedly connected together through bolts. The cold iron blocks are arranged on the periphery of the cavity, so that shrinkage cavities and shrinkage porosity at the local hot spot of the casting can be eliminated, cracks of the casting are prevented, the hardness and the abrasion resistance of the casting are improved, the shrinkage cavities and the shrinkage porosity at the local hot spot of the casting are eliminated, the cracks of the casting are prevented, and the internal quality of the casting is guaranteed.

Description

Technical Field

[0001] The utility model relates to a casting mold, in particular to a bearing seat casting device, belonging to the technical field of casting. Background Art

[0002] The bearing seat is an important large-scale component equipment in the rolling mill equipment of large steel plants. It is an important component to ensure the safe production and stable operation of the equipment and the stable quality of steel products. This part requires 100% ultrasonic flaw detection and magnetic particle flaw detection according to Level 2 in JB / T5000.14. When casting, the casting is very prone to shrinkage cavities and shrinkage, which leads to cracks on the surface of the casting, which is not only difficult to repair but also reduces the quality of the casting. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a bearing seat casting device, which eliminates shrinkage cavities and shrinkage at local hot spots of the casting by arranging cold iron blocks around the cavity, thereby preventing cracks from occurring in the casting.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] A bearing seat casting device comprises an upper sand box, a lower sand box and a cavity. The upper sand box and the lower sand box are symmetrically distributed in an upper and lower direction, and a cavity is arranged in the upper sand box and the lower sand box. Cold iron blocks are arranged around the cavity. A riser and a pouring gate are arranged on the top of the upper sand box.

[0006] The outer parts of the upper sand box mold and the lower sand box mold are respectively provided with outer shells, and the outer shells of the upper sand box mold and the lower sand box mold are fixedly connected together by bolts.

[0007] A sand core is arranged at the center of the cavity, and the position of the riser corresponds to the upper and lower positions of the sand core.

[0008] The gate is located at an upper position of the cavity.

[0009] The positive beneficial effects of the utility model are:

[0010] 1. The utility model can eliminate shrinkage cavities and shrinkage porosity at local hot spots of castings by arranging cold iron blocks around the cavity, prevent cracks in castings, improve the hardness and wear resistance of castings, avoid the need for later repair procedures, ensure the internal quality of castings and improve the shrinkage compensation efficiency of risers.

[0011] 2. The utility model reduces the workload of the finishing process to a great extent, and at the same time shortens the delivery period, reduces production costs, is easy to use, simple to operate, and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Among them: 1-upper box sand mold, 2-lower box sand mold, 3-shell, 4-cavity, 5-sand core, 6-chill block, 7-riser, 8-gate. DETAILED DESCRIPTION

[0014] The utility model is further explained and illustrated below in conjunction with the accompanying drawings:

[0015] For example, see Figure 1 A bearing seat casting device includes an upper sand mold 1, a lower sand mold 2 and a cavity 4. The upper sand mold 1 and the lower sand mold 2 are symmetrically distributed in an upper and lower direction, and the cavity 4 is arranged in the upper sand mold 1 and the lower sand mold 2. Chilled iron blocks 6 are arranged around the cavity 4, and a riser 7 and a pouring gate 8 are arranged on the top of the upper sand mold 1.

[0016] Shells 3 are respectively arranged outside the upper sand mold 1 and the lower sand mold 2, and the shells of the upper sand mold 1 and the lower sand mold 2 are fixed together by bolts.

[0017] A sand core 5 is arranged at the center of the mold cavity 4 , and the position of the riser 7 corresponds to the upper and lower positions of the sand core 5 .

[0018] The gate 8 is located above the cavity 4 .

[0019] In the above description, when making the exterior, the actual sample model, special external chiller, and runner are placed according to the process requirements, and then the exterior is knocked out, and the internal sand core is made and fixed in the cavity according to the process requirements; the upper box is placed according to the process requirements and the riser is knocked out, and finally the upper box and the cavity are painted, and then the box is buckled and waiting for pouring.

[0020] The utility model can eliminate shrinkage cavities and shrinkage porosity at local hot nodes of the casting by arranging cold iron blocks around the cavity, prevent the casting from cracking, improve the hardness and wear resistance of the casting, avoid the process of later repair, ensure the internal quality of the casting and improve the shrinkage compensation efficiency of the riser.

Claims

1. A bearing seat casting device, comprising an upper sand mold (1), a lower sand mold (2) and a mold cavity (4), characterized in that: The upper sand box mold (1) and the lower sand box mold (2) are symmetrically arranged in an upper and lower direction, and a mold cavity (4) is arranged in the upper sand box mold (1) and the lower sand box mold (2), and a cold iron block (6) is arranged around the mold cavity (4). A riser (7) and a pouring gate (8) are arranged on the top of the upper sand box mold (1).

2. A bearing seat casting device according to claim 1, characterized in that: The outer parts of the upper sand box mold (1) and the lower sand box mold (2) are respectively provided with outer shells (3), and the outer shells of the upper sand box mold (1) and the lower sand box mold (2) are fixed together by bolts.

3. A bearing seat casting device according to claim 1, characterized in that: A sand core (5) is arranged at the center of the mold cavity (4), and the position of the riser (7) corresponds to the upper and lower positions of the sand core (5).

4. A bearing seat casting device according to claim 1, characterized in that: The gate (8) is located above the cavity (4).

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