Core bar for water cavity core of dry cylinder body
By using a core structure that connects bent rods and vertical rods in a welded connection in the water cavity core of a dry cylinder block, the problems of fragility and deformation of the water cavity core during the casting process are solved, thereby achieving improved strength and reduced cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LAIYANG DACHAI AUTOMOBILE CYLINDER HEAD CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-15
AI Technical Summary
In the dry cylinder block production process, there is no water cavity connection between the cylinder barrels, resulting in no sand sheet connection in the middle of the water cavity core, and a large number of broken cores and deformed waste products during the casting process.
Bending rods and vertical rods are connected by welding to serve as the core skeleton of the dry cylinder water cavity core. They are used to install the core into the slot between the two cylinders of the water cavity core box to support the cast water cavity core and enhance the strength of the sand core.
It effectively prevents the water cavity core from cracking and deforming, improves the strength and ease of installation of the sand core, and reduces costs.
Smart Images
Figure CN224238213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry cylinder block manufacturing technology, and in particular to a dry cylinder block water cavity core core. Background Technology
[0002] A dry block refers to a cylinder block design in which the cylinder liner does not directly contact the cooling water. In a dry block, the outer wall of the cylinder liner is in direct contact with the cylinder block wall, but not with the cooling water, and its wall thickness is typically between 1 and 3 millimeters.
[0003] During the production of dry cylinder blocks, due to structural issues, there is no water cavity connecting the cylinder barrels. Therefore, there is no sand sheet connecting the water cavity core. During the casting process, there are many defective products with broken cores and deformed sand cores. Therefore, a dry cylinder block water cavity core skeleton is needed to solve the above problems. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide a dry cylinder water chamber core frame that is easy to install, low in cost, and does not affect cylinder performance.
[0005] This utility model embodiment is implemented as follows: a dry cylinder water cavity core skeleton includes: a bent rod and a vertical rod, the bent rod and the vertical rod are fixedly connected, and the bent rod and the vertical rod are used to install into the slot between the two cylinders of the water cavity core box to support the cast water cavity core.
[0006] Preferably, the bent rod and the vertical rod are made of iron bars with a diameter of 5mm, and the bent rod and the vertical rod are connected by welding.
[0007] The dry cylinder water cavity core skeleton provided by this utility model can support the water cavity core after casting, strengthen the strength of the sand core, and solve the problem of the water cavity core being easily broken or deformed after casting, making it highly practical. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the core skeleton of a dry cylinder block with a water chamber.
[0009] In the attached diagram: 1-bent rod, 2-vertical rod. Detailed Implementation
[0010] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not limit the present utility model.
[0011] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0012] Please seeFigure 1 This utility model provides a dry cylinder block water chamber core frame, which includes:
[0013] A bent rod 1 and a vertical rod 2 are fixedly connected. The bent rod 1 and the vertical rod 2 are used to install into the slot between the two cylinders of the water cavity core box to support the cast water cavity core.
[0014] like Figure 1 As shown, in a preferred embodiment of this utility model, the bent rod 1 and the vertical rod 2 are made of iron rods with a diameter of 5mm, and the bent rod 1 and the vertical rod 2 are connected by welding.
[0015] This method is applicable to the water cavity core of dry cylinder blocks. The material is 5mm iron rod welded together. When manufacturing the water cavity core, the bent rod 1 and vertical rod 2 of the core skeleton are installed in the slot between the two cylinders of the water cavity core box. Sand shooting is started to make the core. After pouring molten iron, the water cavity core is formed. The strength of the water cavity core is strengthened by the support of the bent rod 1 and vertical rod 2.
[0016] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dry cylinder water chamber core frame, comprising a bent rod and a vertical rod, characterized in that, The bent rod and the vertical rod are fixedly connected and are used to be installed in the slot between the two cylinders of the water cavity core box to support the cast water cavity core.
2. The dry cylinder water chamber core frame according to claim 1, characterized in that, The bent rod and the vertical rod are made of iron bars with a diameter of 5mm, and the bent rod and the vertical rod are connected by welding.