Automobile wheel hub mold with upper and lower split side mold

By combining the upper and lower split side mold design with a cooling device, the problem of uneven cooling in traditional molds is solved, enabling high-precision and low-energy production of wheel hubs, and improving casting efficiency and product quality.

CN122274140APending Publication Date: 2026-06-26ZHEJIANG JINTAI AUTO PARTS MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG JINTAI AUTO PARTS MFG CO LTD
Filing Date
2026-05-15
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional integral molds suffer from uneven cooling in the production of large-wall-thickness-difference and large-specification wheel hubs, leading to temperature gradient deviations, product defects, and reduced fatigue strength, failing to meet the requirements of high precision and low energy consumption.

Method used

It adopts a split upper and lower side mold design, combined with a cooling device including a cooling chamber, a reflector, a water inlet pipe and a return pipe. It achieves uniform and rapid cooling of hot spots by directional spraying of cooling medium. The supply timing and pressure of the cooling medium are controlled by a microcomputer program to ensure cooling uniformity and efficiency.

Benefits of technology

It improves casting efficiency and solidification quality, reduces the risk of local thermal shock and surface cracking in the mold, and enhances the dynamic balance accuracy and forming quality of the wheel hub, meeting the high precision and low energy consumption requirements of the electric vehicle and modified vehicle markets.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses an automotive wheel hub mold with upper and lower split side molds, including an upper mold, a lower mold, and several side molds. The side molds include a front wheel rim side mold and a rear wheel rim side mold that fit together vertically. The front wheel rim side mold is equipped with a cooling device. This cooling device guides the cooling medium to uniformly and rapidly cool the thickness portion where the front wheel rim connects to the spokes. It includes a cooling chamber, a reflector plate, a water inlet pipe, and a return pipe. The reflector plate is located at the top of the cooling chamber. One end of the water inlet pipe extends into the cooling chamber and slopes upwards towards the reflector plate. The core solution employs a cooling device with a reflector plate. Through optimized pipe structure and program control, uniform dispersion and cooling of the cooling medium are achieved, improving the casting efficiency and solidification quality of this type of wheel, while reducing localized thermal shock to the mold and reducing the risk of surface cracking.
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