The utility model discloses a driving wheel tangential pouring structure of a excavator, which comprises a gate cup, a straight runner, a cast-in-place road and an inner runner, and the gate cup is connected with the cast-in-place channel through a straight runner, the runner is connected to the driving wheel through the inner runner, and the inner runner is located in the tangent direction of the driving wheel. An riser is arranged on the moving wheel, the riser is located near the tooth part of the spokes of the driving wheel, and the tooth part of the driving wheel is provided with an exhaust port, and the exhaust port is located between two adjacent risers. The utility model adopts the structure of a tangential casting structure of the driving wheel of the excavator, which can solve the problem that the driving wheel has many defects and poor organization density.
【技术实现步骤摘要】
一种挖掘机驱动轮切向浇注结构
本技术涉及驱动轮浇注结构
,尤其是涉及一种挖掘机驱动轮切向浇注结构。
技术介绍
挖掘机的驱动轮内部空腔固定有行走马达和减速机,可以将马达的动力转变成牵引力,实现整机的行走。驱动轮的齿部与履带啮合,所以对驱动轮齿部的性能要求以及组织的致密性要求较高。驱动轮多是采用砂型铸造而成,传统的直浇式的浇注结构不利于金属液中的夹杂等上浮,导致驱动轮的铸造缺陷较多、致密性差。
技术实现思路
本技术的目的是提供一种挖掘机驱动轮切向浇注结构,解决驱动轮铸造缺陷多、组织致密性差的问题。为实现上述目的,本技术提供了一种挖掘机驱动轮切向浇注结构,包括浇口杯、直浇道、横浇道和内浇道;所述浇口杯与横浇道通过直浇道相连通,所述横浇道通过所述内浇道与驱动轮连通,所述内浇道位于所述驱动轮的切线方向;所述驱动轮上设置有冒口,所述冒口位于所述驱动轮的辐板靠近齿部的位置,所述驱动轮的齿部设置有排气口,所述排气口位于两个相邻的冒口之间。优选的,所述浇口杯为漏斗形结构。优选的,所述直浇道远离浇口杯的一端设置有浇口窝,所述横浇道位于所述浇口窝的上方。优选的,所述驱动轮辐板上圆周阵列有4个所述冒口和4个所述排气口,所述排气口的高度不低于所述冒口的高度。优选的,所述横浇道通过2个所述内浇道与驱动轮相连通。优选的,所述直浇道内设置有陶瓷管。本技术所述的一种挖掘机驱动轮切向浇注结构,内浇道位于驱动轮的切线方向上,可以使金属液旋转流动的进入驱动轮的型腔内,减少金属液对砂型的冲刷,有利于金属液内氧化渣、浮砂等的上浮,使铸造缺陷存在驱动轮的表面,获得内部组织致密的驱动轮。冒口设置在辐板靠近 ...
【技术保护点】
1.一种挖掘机驱动轮切向浇注结构,其特征在于:包括浇口杯、直浇道、横浇道和内浇道;所述浇口杯与横浇道通过直浇道相连通,所述横浇道通过所述内浇道与驱动轮连通,所述内浇道位于所述驱动轮的切线方向;所述驱动轮上设置有冒口,所述冒口位于所述驱动轮的辐板靠近齿部的位置,所述驱动轮的齿部设置有排气口,所述排气口位于两个相邻的冒口之间。
【技术特征摘要】
1.一种挖掘机驱动轮切向浇注结构,其特征在于:包括浇口杯、直浇道、横浇道和内浇道;所述浇口杯与横浇道通过直浇道相连通,所述横浇道通过所述内浇道与驱动轮连通,所述内浇道位于所述驱动轮的切线方向;所述驱动轮上设置有冒口,所述冒口位于所述驱动轮的辐板靠近齿部的位置,所述驱动轮的齿部设置有排气口,所述排气口位于两个相邻的冒口之间。2.根据权利要求1所述的一种挖掘机驱动轮切向浇注结构,其特征在于:所述浇口杯为漏斗形结构。3.根据权利要求1所述的一种挖掘机驱动轮切...
【专利技术属性】
技术研发人员:李惠,李栋梁,
申请(专利权)人:保定茶山五岳铸造有限公司,
类型:新型
国别省市:河北,13
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