CN202756721U - 内铸油道式多路阀 - Google Patents

内铸油道式多路阀 Download PDF

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Publication number
CN202756721U
CN202756721U CN 201220458732 CN201220458732U CN202756721U CN 202756721 U CN202756721 U CN 202756721U CN 201220458732 CN201220458732 CN 201220458732 CN 201220458732 U CN201220458732 U CN 201220458732U CN 202756721 U CN202756721 U CN 202756721U
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China
Prior art keywords
oil
endocast
valve
valve body
oil passages
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Expired - Fee Related
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CN 201220458732
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English (en)
Inventor
田守港
石妙鑫
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HUAIAN SHENGJIE HYDRAULIC MACHINERY CO Ltd
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HUAIAN SHENGJIE HYDRAULIC MACHINERY CO Ltd
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Abstract

本实用新型公开了一种内铸油道式多路阀,包括阀体、主溢流阀、工作口、进油口、出油口、操作杆,阀体内部设有交叉相通的油道,所述油道是铸浇成型,所述油道连通拐角处为弧形。本实用新型由于采用内铸油道,改变了从阀体外表面打辅助孔连通油道的工艺,多路阀结构简单紧凑,油道密封性能好,而且省去大量打孔加工工序,也不需要耗用大量油堵,降低了制造成本。

Description

内铸油道式多路阀
技术领域
    本实用新型涉及多路阀领域,具体涉及内铸油道式多路阀。
背景技术
 传统多路阀的油道一般是从阀体表面向内部横向、纵向的进行打孔,按照工艺要求将内部油道连通,然后将不需要的辅助孔洞用油堵进行堵塞。这样制作加工工艺复杂,不仅加工众多辅助连通孔洞时耗时费工,加工完后还要耗用大量油堵将辅助孔洞封死,如果密封不好或老化,还经常出现漏油现象。
发明内容
    本实用新型要解决的技术问题是提供一种内铸油道式多路阀,内部油道通过铸造形成,无需借助从阀体外表面打辅助孔连通,不仅省去大量打孔加工工序,而且也不需要油堵封孔,降低制造成本,油道密封性能好。
本实用新型通过以下技术方案实现:
内铸油道式多路阀,包括阀体、主溢流阀、工作口、进油口、出油口、操作杆,阀体内部设有交叉相通的油道,所述油道是铸浇成型。
本实用新型进一步改进方案是,所述油道连通拐角处为弧形。
本实用新型与现有技术相比,具有以下明显优点:
本实用新型由于采用内铸油道,改变了从阀体外表面打辅助孔连通油道的工艺,多路阀结构简单紧凑,油道密封性能好,而且省去大量打孔加工工序,也不需要耗用大量油堵,降低了制造成本。
附图说明
图1为本实用新型剖视图。
具体实施方式
如图1所示,本实用新型包括阀体1、主溢流阀、工作口、进油口、出油口、操作杆,所述阀体1内部设有交叉相通的油道2,所述油道2是浇铸成型,油道2连通拐角处为弧形。
阀体用外模组合油道状内模浇铸成形,内模为石腊类遇高温易融物质,阀体成型后,内部油道自然形成。

Claims (2)

1.内铸油道式多路阀,包括阀体(1)、主溢流阀、工作口、进油口、出油口、操作杆,阀体(1)内部设有交叉相通的油道(2),其特征在于:所述油道(2)是浇铸成型。
2.根据权利要求1所述的内铸油道式多路阀,其特征在于:所述油道(2)连通拐角处为弧形。
CN 201220458732 2012-09-11 2012-09-11 内铸油道式多路阀 Expired - Fee Related CN202756721U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220458732 CN202756721U (zh) 2012-09-11 2012-09-11 内铸油道式多路阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220458732 CN202756721U (zh) 2012-09-11 2012-09-11 内铸油道式多路阀

Publications (1)

Publication Number Publication Date
CN202756721U true CN202756721U (zh) 2013-02-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220458732 Expired - Fee Related CN202756721U (zh) 2012-09-11 2012-09-11 内铸油道式多路阀

Country Status (1)

Country Link
CN (1) CN202756721U (zh)

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Granted publication date: 20130227

Termination date: 20130911