The utility model discloses a column outer cylinder with a deep hole and an inlet and outlet control valve seat, which comprises an inlet and outlet control valve seat arranged on the upper part of the outer cylinder cylinder, a diversion channel is opened along the axis in the side wall of the outer cylinder, and the lower end of the diversion channel is connected with the lower cavity of the outer cylinder; the inlet and outlet control valve seat includes a steel plate seat, a steel plate seat and an outer cylinder seat. The periphery of cylinder-cylinder contact is fixed connected with outer cylinder by fillet welding; the steel plate seat is provided with upper chamber feed-back plug welding hole and lower chamber feed-back plug welding hole; plug welding layer is respectively welded in upper chamber feed-back plug welding hole and lower chamber feed-back plug welding hole; the center position of plug welding layer in upper chamber feed-back plug welding hole is provided with outer cylinder top chamber. The upper cavity enters and returns the liquid hole, and the lower cavity enters and returns the liquid plug welding hole, and the center position of the plug welding layer is provided with the lower cavity enters and returns the liquid hole connected with the guide channel. The utility model has the advantages that the control seat of the single part is separately connected with the outer cylinder barrel, thereby reducing the overall processing process of the outer cylinder barrel.
【技术实现步骤摘要】
带过液深孔和进回液控制阀座的立柱外缸筒
本技术涉及薄煤层液压支架伸缩立柱外缸筒,尤其是涉及带过液深孔和进回液控制阀座的立柱外缸筒。
技术介绍
随着我国煤矿综采技术的发展,薄煤层液压支架也开始普遍使用于井下煤矿的采掘。由于薄煤层综采面的限制,使得薄煤层液压支架支护高度比较低,液压支架空间有限,而传统的伸缩立柱外缸筒上用于安装立柱进回液控制阀的阀座厚度尺寸比较大(因为需要焊接通液管),并且伸缩立柱上、下腔进回液控制阀座分体布置在外缸筒的上、下表面,这又进一步占用了液压支架的空间,已经不能满足薄煤层液压支架设计需求。中国专利申请公布号CN106002093A公开了“一种带控制阀座的缸筒的制造方法”,控制阀座采取的是堆焊方式焊接在立柱外缸筒上,即通过堆焊形成控制阀座,然后在该控制阀座上加工出进、回液孔;由于堆焊工艺生产流程太长,控制阀座堆焊成型后焊接量过大,直接影响了伸缩立柱的整体生产效率。
技术实现思路
本技术目的在于提供一种带过液深孔和进回液控制阀座的立柱外缸筒,实现节约薄煤层液压支架空间。为实现上述目的,本技术采取下述技术方案:本技术所述带过液深孔和进回液控制阀座的立柱外缸筒,包括外缸筒,设置在所述外缸筒上部的进回液控制阀座,外缸筒侧壁内沿轴向开设导流道,所述导流道下端与外缸筒下腔相连通;所述进回液控制阀座包括钢板阀座,所述钢板阀座与外缸筒接触的周边通过角焊与外缸筒固定连接;钢板阀座上开设有上腔进回液塞焊孔和下腔进回液塞焊孔,所述上腔进回液塞焊孔和下腔进回液塞焊孔内分别施焊有塞焊层;上腔进回液塞焊孔内的所述塞焊层中心位置开设有与外缸筒上腔相通的上腔进回液孔;下腔 ...
【技术保护点】
1.一种带过液深孔和进回液控制阀座的立柱外缸筒,包括外缸筒,设置在所述外缸筒上部的进回液控制阀座,外缸筒侧壁内沿轴向开设导流道,所述导流道下端与外缸筒下腔相连通;其特征在于:所述进回液控制阀座包括钢板阀座,所述钢板阀座与外缸筒接触的周边通过角焊与外缸筒固定连接;钢板阀座上开设有上腔进回液塞焊孔和下腔进回液塞焊孔,所述上腔进回液塞焊孔和下腔进回液塞焊孔内分别施焊有塞焊层;上腔进回液塞焊孔内的所述塞焊层中心位置开设有与外缸筒上腔相通的上腔进回液孔;下腔进回液塞焊孔内的所述塞焊层中心位置开设有与所述导流道相通的下腔进回液孔;所述上、下腔进回液孔的直径分别小于对应的上、下腔进回液塞焊孔直径。
【技术特征摘要】
1.一种带过液深孔和进回液控制阀座的立柱外缸筒,包括外缸筒,设置在所述外缸筒上部的进回液控制阀座,外缸筒侧壁内沿轴向开设导流道,所述导流道下端与外缸筒下腔相连通;其特征在于:所述进回液控制阀座包括钢板阀座,所述钢板阀座与外缸筒接触的周边通过角焊与外缸筒固定连接;钢板阀座上开设有上腔进回液塞焊孔和下腔进回液塞焊孔,所述上腔进回液塞焊孔和下腔进回液塞焊孔内分别施焊有塞焊层;上腔进回液塞焊孔内的所述塞焊层中心位置开设有与外缸筒上腔相通的上腔进回液孔;下腔进回液塞焊孔内的所述塞焊...
【专利技术属性】
技术研发人员:孟贺超,卢君,程相榜,印文才,汤国强,凡乃峰,刘程,谷建军,张海生,李瑞鹏,
申请(专利权)人:郑州煤矿机械集团股份有限公司,
类型:新型
国别省市:河南,41
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