CN202520937U - 超高压新型复合型活塞密封 - Google Patents

超高压新型复合型活塞密封 Download PDF

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Publication number
CN202520937U
CN202520937U CN2012201581836U CN201220158183U CN202520937U CN 202520937 U CN202520937 U CN 202520937U CN 2012201581836 U CN2012201581836 U CN 2012201581836U CN 201220158183 U CN201220158183 U CN 201220158183U CN 202520937 U CN202520937 U CN 202520937U
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rubber elastomer
seal body
piston
polyurethane
seal
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邹威文
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Shaanxi Kelong Energy Technology Corp Ltd
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咸阳科隆特种橡胶制品有限公司
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Abstract

本实用新型涉及一种超高压新型复合型活塞密封，它适用于矿道液压支架立柱及千斤顶，它由聚氨酯密封体、橡胶弹性体和两个聚甲醛耐磨环构成，外侧聚氨酯密封体与活塞缸壁接触，内侧橡胶弹性体嵌入活塞沟槽中，聚甲醛耐磨环采取通底式结构，位于聚氨酯密封体和橡胶弹性体的两端，且整体安装在活塞沟槽内；所述的橡胶弹性体底部采用双圆弧结构，本实用新型聚氨酯密封体截面面积加大，厚度增加，密封体的密封效果更加优良。橡胶弹性体底部采用双圆弧结构，增强了弹性体的回弹性。聚甲醛通底式结构减缓了聚氨酯密封体和橡胶弹性体的承压力，并保护了聚氨酯密封体及橡胶弹性体完整性。其密封能力强，通过反复液压实验，密封件的往复次数增加1.5倍，其耐压能力达到类似产品的2倍以上，使用寿命延长。

Description

超高压新型复合型活塞密封
一、技术领域
本实用新型涉及一种超高压新型复合型活塞密封，适用于矿道液压支架。
由聚氨酯密封体、橡胶弹性体和两个聚甲醛耐磨环构成的组合双向活塞密封，适用于矿道液压支架。
二、背景技术
现有组合双向活塞封，各厂家均采用了聚氨酯密封体、橡胶弹性体及聚甲醛耐磨环组合而成，虽然结构简单，制造方便.但由于结构、尺寸设计上的先天不足，耐压能力不足、弹性体回弹性不足、聚氨酯部分磨损快，影响了密封件的可靠性、稳定性，使用寿命短，维修更换频次多.严重影响液压支架的支护能力，直接影响了生产效率和安全生产.
三、实用新型的内容
本实用新型的目的是针对现有组合双向活塞密封的不足之处，提供一种超高压新型复合型活塞密封。
本实用新型的目的是这样来完成的：它由聚氨酯密封体、橡胶弹性体和两个聚甲醛耐磨环构成，外侧聚氨酯密封体与活塞缸壁接触，内侧橡胶弹性体嵌入活塞沟槽中，聚甲醛耐磨环采取通底式结构，位于聚氨酯密封体和橡胶弹性体的两端，且整体安装在活塞沟槽内；所述的橡胶弹性体底部采用双圆弧结构。
实用新型提供的超高压新型复合型活塞密封，由聚氨酯密封体、橡胶弹性体及聚甲醛耐磨环构成，聚氨酯密封体是密封件的主要密封部分，密封截面面积加大，厚度增加，密封体的密封效果更加优良，它的结构简单易于加工。橡胶弹性体底部采用双圆弧结构，增强了弹性体的回弹性，有着优越的密封效果。聚甲醛通底式结构减缓了聚氨酯密封体和橡胶弹性体的承压力，并保护了聚氨酯密封体及橡胶弹性体完整性，使得整体承受压力能力增强。
本实用新型其密封能力强，通过反复液压实验，密封件的往复次数增加1.5倍，其耐压能力达到类似产品的2倍以上，使用寿命延长。
四、附图说明
附图1为本实用新型组合双向活塞封剖面图。
附图2为本实用新型组合双向活塞封截面图。
其中：1---聚氨酯密封体2----聚甲醛耐磨环、3----橡胶弹性体
五、具体实施方式
下面结合附图及实施例来对本实用新型做进一步详细描述：
参照附图，本实用新型提供一种超高压新型复合型活塞密封，它包括：聚氨酯密封体1，两个聚甲醛耐磨环2和橡胶弹性体3组成，外侧聚氨酯密封体1与活塞缸壁接触，结构简，内侧橡胶弹性体3嵌入活塞沟槽中，聚甲醛耐磨环2采取通底式结构，位于聚氨酯密封体1和橡胶弹性体3的两端，且整体安装在活塞沟槽内，缓冲了聚氨酯密封体和橡胶弹性体的承压力，并保护了聚氨酯密封体及橡胶弹性体完整性，橡胶弹性体3底部采用双圆弧结构，提供强大而稳定的密封应力。

Claims (2)

1.一种超高压新型复合型活塞密封，它包括：聚氨酯密封体(1)、两个聚甲醛耐磨环(2)、橡胶弹性体(3)组成，其特征在于：外侧聚氨酯密封体(1)与活塞缸壁接触，内侧橡胶弹性体(3)嵌入活塞沟槽中，聚甲醛耐磨环(2)采取通底式结构，位于聚氨酯密封体(1)和橡胶弹性体(3)的两端，且整体安装在活塞沟槽内。
2.如权利要求1所述的超高压新型复合型活塞密封，其特征在于：所述的橡胶弹性体(3)底部采用双圆弧结构。
CN2012201581836U 2012-04-03 2012-04-03 超高压新型复合型活塞密封 Expired - Lifetime CN202520937U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664282B2 (en) 2013-08-20 2017-05-30 Dow Global Technologies Llc Polyurethane elastomeric seal for hydraulic pumps
CN115917189A (zh) * 2020-06-23 2023-04-04 特瑞堡密封系统德国有限公司 耐磨环以及耐磨环装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664282B2 (en) 2013-08-20 2017-05-30 Dow Global Technologies Llc Polyurethane elastomeric seal for hydraulic pumps
CN115917189A (zh) * 2020-06-23 2023-04-04 特瑞堡密封系统德国有限公司 耐磨环以及耐磨环装置
CN115917189B (zh) * 2020-06-23 2024-05-03 特瑞堡密封系统德国有限公司 耐磨环以及耐磨环装置

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Owner name: SHAANXI COLOGNE ENERGY TECHNOLOGY CO., LTD.

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