The utility model relates to a metal casting, in particular to a gate valve casting, which comprises a valve body and a valve cover arranged in coordination, a valve stem through hole is arranged at the axle center of the valve body and the valve cover, a valve stem through hole is arranged in the valve stem through hole, and a valve body side part is correspondingly provided with a liquid inlet and an outlet, and a reinforcing rib is arranged on the outer wall of the valve body between the valve stem through hole and the liquid inlet, and a valve between the valve stem through hole and the liquid outlet. Strengthened ribs are installed on the outer wall; balancing mechanism is installed in the middle of the valve cover; reinforcement ribs are positioned and strengthened to ensure that the through hole of the valve stem of the gate plate is positioned and strengthened during the finishing treatment of the castings. The processing is easier to complete and the product yield is high. Strengthened ribs can reduce the strain of the valve body, the through hole of the valve stem is not easy to deform and cracks will not occur, so as to better ensure the sealing surface. To ensure the safety of pipelines and normal daily operation; at the same time, heat dissipation holes are installed on reinforcement ribs to ensure that the shutoff and drainage of gate valves can be better carried out and the service life of gate valves can be prolonged.
【技术实现步骤摘要】
一种闸阀铸件
本技术涉及一种金属铸件,特别涉及一种闸阀铸件。
技术介绍
闸阀是一个启闭件闸板,闸板的运动方向与流体方向相垂直,闸阀只能作全开和全关,不能作调节和节流。闸阀通过阀座和闸板接触进行密封,通常密封面会堆焊金属材料以增加耐磨性,如堆焊1Cr13、STL6、不锈钢等。现有技术中,大部分闸阀是采用强制密封的,即阀门关闭时,要依靠外力强行将闸板压向阀座,保证密封面的密封性,这导致了闸板的阀杆通孔在进行铸件精加工处理时就必须非常小心,成品率不高,而阀杆通孔在工作时又经常性处于高强度工作状态下,长此以往容易导致阀杆通孔的劳损,出现阀杆通孔变形甚至出现裂痕等情况,无法保证密封面的密封性,甚至可能出现管路的泄漏等情况,对正常的作业产生影响;并且阀盖支撑不当会造成闸阀的阀杆与阀座不能对中,使变差增大,密封性能下降。
技术实现思路
本技术解决的技术问题是,现有技术中,大部分闸阀是采用强制密封的,即阀门关闭时,要依靠外力强行将闸板压向阀座,保证密封面的密封性,这导致了闸板的阀杆通孔在进行铸件精加工处理时就必须非常小心,成品率不高,而阀杆通孔在工作时又经常性处于高强度工作状态下,长此以往容易导致阀杆通孔的劳损,出现阀杆通孔变形甚至出现裂痕等情况,无法保证密封面的密封性,甚至可能出现管路的泄漏等情况,对正常的作业产生影响;并且阀盖支撑不当会造成闸阀的阀杆与阀座不能对中,使变差增大,密封性能下降。本技术所采用的技术方案是,提供一种闸阀铸件,包括配合设置的阀体和阀盖,所述阀体和阀盖的轴心处配合设有阀杆通孔,所述阀杆通孔中设有阀杆,所述阀体侧部分别对应设有入液口和出液口,所述阀杆通孔和 ...
【技术保护点】
1.一种闸阀铸件,包括配合设置的阀体和阀盖,其特征在于:所述阀体和阀盖的轴心处配合设有阀杆通孔,所述阀杆通孔中设有阀杆,所述阀体侧部分别对应设有入液口和出液口,所述阀杆通孔和入液口间的阀体外壁上设有加强筋,所述阀杆通孔和出液口间的阀体外壁上设有加强筋;所述阀盖中部设有平衡机构。
【技术特征摘要】
1.一种闸阀铸件,包括配合设置的阀体和阀盖,其特征在于:所述阀体和阀盖的轴心处配合设有阀杆通孔,所述阀杆通孔中设有阀杆,所述阀体侧部分别对应设有入液口和出液口,所述阀杆通孔和入液口间的阀体外壁上设有加强筋,所述阀杆通孔和出液口间的阀体外壁上设有加强筋;所述阀盖中部设有平衡机构。2.根据权利要求1所述的一种闸阀铸件,其特征在于:所述平衡机构包括若干平衡块,任一所述平衡块整体呈倒梯台形,所述若干平衡块以所述阀体的中心轴对称设置。3.根据权利要求2所述的一种闸阀铸件,其特征在于:任一所述平衡块上对称...
【专利技术属性】
技术研发人员:罗贤龙,季知燕,乐勇明,林杰,
申请(专利权)人:浙江林家昌隆阀门铸造有限公司,
类型:新型
国别省市:浙江,33
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