CN202441859U - 压力通气塞 - Google Patents

压力通气塞 Download PDF

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Publication number
CN202441859U
CN202441859U CN2012200740727U CN201220074072U CN202441859U CN 202441859 U CN202441859 U CN 202441859U CN 2012200740727 U CN2012200740727 U CN 2012200740727U CN 201220074072 U CN201220074072 U CN 201220074072U CN 202441859 U CN202441859 U CN 202441859U
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hole
plug
endoporus
outer hole
steel ball
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龚学华
缪茂浪
黄喜豪
唐小军
慈健
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ZHEJIANG TANHON DRIVING MACHINE CO Ltd
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ZHEJIANG TANHON DRIVING MACHINE CO Ltd
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Abstract

本实用新型公开了一种压力通气塞，包括塞体，其特征在于：塞体具有轴向通孔，轴向通孔由内孔和外孔组成，内孔小外孔大，外孔的孔腔内装入钢球、弹簧后用堵头进行封堵，钢球位于内孔和外孔之间，钢球在弹簧作用下紧贴内孔的端面将内孔封堵，外孔的孔腔与大气相通。本实用新型代替普通气塞安装在减速机箱体上，提高减速机工作稳定性和传动精度，降低噪声和振动，减轻液压油的污染。

Description

压力通气塞
技术领域：本实用新型涉及一种在减速机箱体上安装用于排气的气塞。 
背景技术：在减速机行业中，减速机的箱体上都会安装气塞，气塞设有一个透气孔，透气孔使减速机箱体的内部和外界大气直接相通，其作用是将减速机箱体内液压油工作时产生的高温气体排出。上述的普通气塞虽然结构简单，作用明显，但是，由于减速箱内部和大气直接相通，液压油工作时产生的气泡不易消除，油液中掺杂气泡会降低油液的刚度，导致减速机工作稳定性和传动精度降低，噪声和振动增大，同时会加速液压油的污染。 
发明内容：针对现有技术的不足，本实用新型的目的旨在提供一种提高减速机工作稳定性和传动精度、降低噪声和振动、减轻液压油污染的压力通气塞。 
本实用新型采用的技术方案是： 
一种压力通气塞，包括塞体，其特征在于：塞体具有轴向通孔，轴向通孔由内孔和外孔组成，内孔小外孔大，外孔的孔腔内装入钢球、弹簧后用堵头进行封堵，钢球位于内孔和外孔之间，钢球在弹簧作用下紧贴内孔的端面将内孔封堵，外孔的孔腔与大气相通。内孔的端面为锥形面。堵头的封堵面设有细齿槽，外孔的孔腔通过细齿槽与大气相通。 
上述结构的气塞，只有当减速机箱体内部的气体压力高于设定值时才打开排气，由于减速机箱体内部保持了一定的压力，所以液压油的气泡不易形成，形成的气泡也会很快消除，这样一来，液压油工作时气泡减少，从而提高减速机工作稳定性和传动精度、降低噪声和振动，同时也减缓了液压油的污染。 
附图说明：
图1为本实用新型的结构示意图， 
图2为图1的俯视图。 
具体实施方式：如图1、2所示，这种压力通气塞，包括塞体3，塞体3通过下段设有的螺纹连接在减速机箱体上，塞体3具有轴向通孔，轴向通孔由内孔6和外孔8组成，内孔小外孔大，外孔8的孔腔内装入钢球5、弹簧座4和弹簧2后用堵头1进行封堵，堵头1的封堵面设有细齿槽9，外孔8的孔腔通过细齿槽9与大气相通，钢球5位于内孔6和外孔8之间，钢球5在弹簧2作用下紧贴内孔的内侧端面7将内孔6封堵，内孔的内侧端面7为锥形面。 
上述压力通气塞是这样工作的：当减速机箱体内部的气体压力高于设定值时，压力气体克服弹簧力顶开钢球，钢球压缩弹簧向上移动，于是压力气体通过堵头封堵面设有的细齿槽向外排气，直至气体压力低于弹簧设定值时才停止，由于减速机箱体内部保持了一定的压力，所以液压油的气泡不易形成，形成的气泡也会很快消除，这样一来，液压油工作时气泡减少，从而提高减速机工作稳定性和传动精度、降低噪声和振动，同时也减缓了液压油的污染。 

Claims (3)

1.一种压力通气塞，包括塞体，其特征在于：塞体具有轴向通孔，轴向通孔由内孔和外孔组成，内孔小外孔大，外孔的孔腔内装入钢球、弹簧后用堵头进行封堵，钢球位于内孔和外孔之间，钢球在弹簧作用下紧贴内孔的端面将内孔封堵，外孔的孔腔与大气相通。
2.根据权利要求1所述的一种压力通气塞，其特征在于：内孔的端面为锥形面。
3.根据权利要求1所述的一种压力通气塞，其特征在于：堵头的封堵面设有细齿槽，外孔的孔腔通过细齿槽与大气相通。
CN2012200740727U 2012-02-29 2012-02-29 压力通气塞 Expired - Fee Related CN202441859U (zh)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047148A (zh) * 2013-01-09 2013-04-17 江苏鼎泽环境工程有限公司 高压式通气帽
CN103075496A (zh) * 2013-02-03 2013-05-01 徐州科源液压股份有限公司 汽车吊绞盘行星齿轮减速机用具有单向功能的通气装置
CN109667965A (zh) * 2019-02-18 2019-04-23 汽解放汽车有限公司 一种用于汽车驱动桥的单向通气塞总成
CN110181554A (zh) * 2018-02-23 2019-08-30 发那科株式会社 保险单元以及机器人
CN113719602A (zh) * 2021-07-13 2021-11-30 东风汽车集团股份有限公司 一种变速箱通气装置及变速箱

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047148A (zh) * 2013-01-09 2013-04-17 江苏鼎泽环境工程有限公司 高压式通气帽
CN103075496A (zh) * 2013-02-03 2013-05-01 徐州科源液压股份有限公司 汽车吊绞盘行星齿轮减速机用具有单向功能的通气装置
CN110181554A (zh) * 2018-02-23 2019-08-30 发那科株式会社 保险单元以及机器人
CN109667965A (zh) * 2019-02-18 2019-04-23 汽解放汽车有限公司 一种用于汽车驱动桥的单向通气塞总成
CN113719602A (zh) * 2021-07-13 2021-11-30 东风汽车集团股份有限公司 一种变速箱通气装置及变速箱
CN113719602B (zh) * 2021-07-13 2024-01-16 东风汽车集团股份有限公司 一种变速箱通气装置及变速箱

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