CN200949654Y - 活塞与缸盖密封结构 - Google Patents

活塞与缸盖密封结构 Download PDF

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Publication number
CN200949654Y
CN200949654Y CN 200620031976 CN200620031976U CN200949654Y CN 200949654 Y CN200949654 Y CN 200949654Y CN 200620031976 CN200620031976 CN 200620031976 CN 200620031976 U CN200620031976 U CN 200620031976U CN 200949654 Y CN200949654 Y CN 200949654Y
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cylinder cover
piston
cylinder
opening
seal ring
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CN 200620031976
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杨晋中
李忠义
马克键
刘广立
谷水军
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Zhengzhou Synthetic Diamond and Products Engineering Technology Research Center Co Ltd
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Zhengzhou Synthetic Diamond and Products Engineering Technology Research Center Co Ltd
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Abstract

活塞与缸盖密封结构，包括从液压油缸缸盖中央穿出的活塞，缸盖内壁顶部设有与其同轴的凹槽，其中安装有密封圈，密封圈上设有开口，开口两端对应设有可调节密封圈张合度的径向连接板，连接板伸入缸盖顶部的轴向凹槽中。径向连接板上对应设置连接孔，其中安装密封圈张合度调节螺栓。缸盖内壁凹槽顶面为与缸盖外侧连接的、内径略大于缸盖内径的压盖，密封圈内侧呈锥台状、凸出于缸盖内壁凹槽顶面。本实用新型密封效果好。

Description

活塞与缸盖密封结构
技术领域
本实用新型属于密封技术领域，特别涉及一种可用于六面顶压机液压油缸的活塞与缸盖密封结构。
背景技术
在超硬材料生产过程中，所使用的叶腊石会产生较多粉尘，粉尘对六面顶压机液压油缸的活塞表面、缸盖内表面特别是对二者之间的密封件造成较大损伤，还会污染液压传动油，直至损坏整个液压系统，造成泵站等事故性损坏。现有设计是在缸盖前端装橡胶防尘圈，刚开始的时候可以起到密封作用，但随着时间的推移，叶腊石粉尘会形成坚硬的组合体微粒夹在密封圈和活塞之间，由于密封圈有弹性，坚硬的组合体微粒包在密封圈里或者进入内腔，同样造成配合表面拉伤和密封圈拉伤。
实用新型内容
本实用新型目的在于提供一种密封效果好的活塞与缸盖密封结构。
为达上述目的，本实用新型采用如下技术方案：活塞与缸盖密封结构，包括从液压油缸缸盖中央穿出的活塞，缸盖内壁顶部设有与其同轴的凹槽，其中安装有密封圈，密封圈上设有开口，开口两端对应设有可调节密封圈张合度的径向连接板，连接板伸入缸盖顶部的轴向凹槽中。
径向连接板上对应设置连接孔，其中安装密封圈张合度调节螺栓。
缸盖内壁凹槽顶面为与缸盖外侧连接的、内径略大于缸盖内径的压盖，密封圈内侧呈锥台状、凸出于缸盖内壁凹槽顶面。
本实用新型中，密封圈为开口式，在开口的两头设计有连接板，连接板上对应设有(同轴)连接孔，孔中安装螺栓，靠螺栓调整开口的大小，直接改变了密封圈和活塞的接触实际内径，调整配合间隙为最佳值，有效铲除工作粉尘和坚硬微粒，从而达到有效防尘的目的；密封圈材料采用尼龙或者软钢类，硬度较高，刚度好，铲除粉尘效果好；密封圈内壁呈锥台型，便于铲除粉尘。
附图说明
图1为本实用新型结构示意图；
图2为图1的俯视图。
具体实施方式
活塞与缸盖密封结构，包括从液压油缸缸盖1中央穿出的活塞2，缸盖1内壁顶部设有与其同轴的凹槽，其中安装有密封圈3，密封圈3内侧呈锥台状、凸出于缸盖1内壁凹槽顶面，密封圈3上设有开口8，开口两端对应设有可调节密封圈张合度的径向连接板4，连接板4上对应设置同轴连接孔，其中安装密封圈张合度调节螺栓5，连接板4伸入缸盖1顶部的轴向凹槽中。缸盖1内壁凹槽顶面为内径略大于缸盖内径的压盖6，压盖6与缸盖1外侧通过压盖螺丝7连接。

Claims (3)

1、活塞与缸盖密封结构，包括从液压油缸缸盖中央穿出的活塞，缸盖内壁顶部设有与其同轴的凹槽，其中安装有密封圈，其特征在于，密封圈上设有开口，开口两端对应设有可调节密封圈张合度的径向连接板，连接板伸入缸盖顶部的轴向凹槽中。
2、如权利要求1所述的活塞与缸盖密封结构，其特征在于，径向连接板上对应设置连接孔，其中安装密封圈张合度调节螺栓。
3、如权利要求1或2所述的活塞与缸盖密封结构，其特征在于，缸盖内壁凹槽顶面为与缸盖外侧连接的、内径略大于缸盖内径的压盖，密封圈内侧呈锥台状、凸出于缸盖内壁凹槽顶面。
CN 200620031976 2006-05-15 2006-05-15 活塞与缸盖密封结构 Expired - Fee Related CN200949654Y (zh)

Priority Applications (1)

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CN 200620031976 CN200949654Y (zh) 2006-05-15 2006-05-15 活塞与缸盖密封结构

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CN200949654Y true CN200949654Y (zh) 2007-09-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679089A (zh) * 2012-05-18 2012-09-19 安徽同发设备股份有限公司 一种哈夫节密封垫
CN103439059A (zh) * 2013-08-19 2013-12-11 胡浩 液压管板压紧器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679089A (zh) * 2012-05-18 2012-09-19 安徽同发设备股份有限公司 一种哈夫节密封垫
CN102679089B (zh) * 2012-05-18 2014-08-06 安徽同发设备股份有限公司 一种哈夫节密封垫
CN103439059A (zh) * 2013-08-19 2013-12-11 胡浩 液压管板压紧器
CN103439059B (zh) * 2013-08-19 2015-08-05 胡浩 液压管板压紧器

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C14 Grant of patent or utility model
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C56 Change in the name or address of the patentee
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Address after: No. 24, Holly Street, hi tech Industrial Development Zone, Henan, Zhengzhou Province: 450001

Patentee after: Zhengzhou Artificial Diamond and Produce Engineering and Technological Research Center Co., Ltd.

Address before: No. 24, Holly Street, hi tech Industrial Development Zone, Henan, Zhengzhou Province: 450001

Patentee before: Zhengzhou Synthetic Diamond and Products Engineering Technique Research Center

EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhengzhou Sino-Crystal Diamond Joint-Stock Co., Ltd.

Assignor: Zhengzhou Artificial Diamond and Produce Engineering and Technological Research Center Co., Ltd.

Contract fulfillment period: 2008.11.19 to 2015.12.1

Contract record no.: 2008410000256

Denomination of utility model: Piston and cylinder lid sealing structure

Granted publication date: 20070919

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Record date: 20081223

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Owner name: ZHENG ZHOU MAN-MADE DIAMOND AND PRODUCTS ENGINEERI

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LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.19 TO 2015.12.1; CHANGE OF CONTRACT

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Granted publication date: 20070919

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EXPY Termination of patent right or utility model