The utility model discloses an inner mold for the bridge shell of a mining dump truck, which is used for pouring molding of the bridge shell of a mine dump truck, including a core bone, a flammable exhaust cotton rope arranged in the outer ring of the core bone, and a clay core shell outside the flammable exhaust cotton rope, and the clay core shell matches the shape of the bridge shell for the dump dump truck to be poured. The outer part of the core shell is provided with a protruding part for the suspension arm of the mining dump truck axle housing, and the outer part of the protrusion part is provided with a foam sleeve. In the concrete pouring, the combustible exhaust cotton rope, which is wound on the core, will burn and disappear during the pouring process, resulting in the gap between the core and the inner wall of the core shell, and can play an exhaust function during the casting process to reduce the hole defects of the castings; in addition, the foam sleeve can be used in the outer wall of the core shell after the burning of the foam sleeve. There is a gap between the sand mold, and the clay core shell will not be hindered by the sand mold when the shrinkage is contracted, which reduces the shrinkage resistance at the hanging arm of the castings, thus further reducing the crack defect of the product.
【技术实现步骤摘要】
一种矿用自卸车桥壳浇注内模
本技术涉及一种模具,更具体地说,特别涉及一种矿用自卸车桥壳浇注内模。
技术介绍
矿用自卸车是指可以通过液压或机械举升而自行卸载货物,且专用于矿山作业的车辆。矿用自卸车一般由汽车底盘、液压举升机构、货厢和取力装置等部件组成。由于矿用自卸车的装载车厢能自动倾翻一定角度卸料,可以极大节省卸料时间和劳动力,缩短运输周期,提高生产效率,降低运输成本,从而广泛应用于各大矿山的开采运输作业中。桥壳是矿用自卸车中安装主减速器、差速器、半轴、轮毂和悬架的基础件,属于矿用自卸车最为重要的设备之一。实际操作中,桥壳需要支承并保护主减速器、差速器和半轴,同时支撑汽车质量并承受由车轮传来的路面反力和反力矩,并经悬架传给车架(或车身),因此,桥壳需具有足够的强度和刚度,质量要求极高。图1提供了一种现有的矿用自卸车桥壳,该矿用自卸车桥壳包括外壳1,外壳1内部设置有安装腔2,安装腔2内用于安装主减速器、差速器、半轴、轮毂和悬架的基础件,外壳1外壁上设置有带孔的悬挂臂3,悬挂臂3用于方便外壳1牢固的安装到车体上。目前而言,矿用自卸车桥壳一般直接浇注成型,现有矿用自卸车桥壳浇注模具一般包括内模与外模,内模与外模之间设置有浇注腔,浇注型形状与待浇注矿用自卸车桥壳形状相同,但由于现有矿用自卸车桥壳浇注内模的砂芯全部为实芯,无排气及掏空措施,导致矿用自卸车桥壳浇注时,很容易出现排气不畅的现象,从而致使铸件内部易产生气孔与裂纹,极大影响了产品的质量。
技术实现思路
本技术要解决的技术问题为提供一种矿用自卸车桥壳浇注内模,该矿用自卸车桥壳浇注内模通过其结构设计,能极大改善浇注过程排 ...
【技术保护点】
1.一种矿用自卸车桥壳浇注内模,用于矿用自卸车桥壳的浇注成型,其特征在于,包括芯骨,所述芯骨外圈缠绕设置有可燃式排气棉绳,所述可燃式排气棉绳外部包设有泥芯壳体,所述泥芯壳体与待浇注的矿用自卸车桥壳的形状相匹配,所述泥芯壳体外部设置有用于矿用自卸车桥壳的悬挂臂成型的突出部,所述突出部外部包设有泡沫套。
【技术特征摘要】
1.一种矿用自卸车桥壳浇注内模,用于矿用自卸车桥壳的浇注成型,其特征在于,包括芯骨,所述芯骨外圈缠绕设置有可燃式排气棉绳,所述可燃式排气棉绳外部包设有泥芯壳体,所述泥芯壳体与待浇注的矿用自卸车桥壳的形状相匹配,所述泥芯壳体外部设置有用于矿用自卸车桥壳的悬挂臂成型的突出部,所述突出部外...
【专利技术属性】
技术研发人员:孔飞,何伟,
申请(专利权)人:株洲九方铸造有限责任公司,
类型:新型
国别省市:湖南,43
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