CN204225801U - 一种无卡键及插杆的夹持器 - Google Patents

一种无卡键及插杆的夹持器 Download PDF

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CN204225801U
CN204225801U CN201420708719.6U CN201420708719U CN204225801U CN 204225801 U CN204225801 U CN 204225801U CN 201420708719 U CN201420708719 U CN 201420708719U CN 204225801 U CN204225801 U CN 204225801U
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武国胜
陈星明
张军周
乔福兆
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Tiefulai Equipment Manufacturing Group Co.,Ltd.
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PINGDINGSHAN TIEFULAI ELECTRONIC AND MECHANICAL EQUIPMENT CO Ltd
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Abstract

一种无卡键及插杆的夹持器,夹持器包括两个油缸、卡瓦座、卡板和卡瓦,两个油缸推动卡瓦座,实现夹持器的开合,卡瓦座两端的两个卡板,将卡瓦固定在卡瓦座内,防止其轴向窜动,在卡板上设置有凸台,限制卡瓦圆周运动,过样可替代插杆和卡键,大大增强了夹持器的可靠性。

Description

一种无卡键及插杆的夹持器
技术领域
本实用新型涉及到煤炭开采领域用的防突钻机上所用的夹持器,具体的说是一种无卡键及插杆的夹持器。
背景技术
在开采煤炭时,需要用到钻机,钻机的钻杆在进行作业时,在频繁装缷钻杆时,需要用到夹持器对其进行固定。现有的夹持器是利用液压油缸通过两个卡瓦对钻杆进行夹持的,在卡瓦座上有四个键槽,通过四个平键固定两半卡瓦,阻止其圆周运动,为防止其沿轴向运动,采用两个插杆,插杆与卡瓦上的圆弧槽配合,达到防止其窜动的目地。但是插杆易磨损,造成卡瓦脱落的现象,影响打钻效率,在钻竖直孔时会由于卡瓦脱落造成人身事故等现象。
实用新型内容
为解决现有卡瓦易脱落的问题,本实用新型提供了一种无卡键及插杆的夹持器,夹持器包括两个油缸、卡瓦座、卡板和卡瓦,两个油缸推动卡瓦座,实现夹持器的开合,卡瓦座两端的两个卡板,将卡瓦固定在卡瓦座内,防止其轴向窜动,在卡板上设置有凸台,限制卡瓦圆周运动,过样可替代插杆和卡键,大大增强了夹持器的可靠性。
为实现上述实用新型目的,本实用新型采用的技术方案是:一种无卡键及插杆的夹持器,包括对称设置的两个卡瓦座,以及分别设置在两个对接设置的卡瓦座座孔内用于夹持钻杆的卡瓦,两个卡瓦座的两端分别设有对其施力的主油缸和副油缸,所述的卡瓦座座孔的边缘设有凹槽,在凹槽内设有与有凹槽相匹配的卡板,卡板通进高强螺栓固定在凹槽内,并将卡瓦固定在卡瓦座座孔内。
本实用新型所述的卡板上设有与卡瓦座座孔相匹配的卡孔凸台。
本实用新型所述的卡板上设有与卡瓦相配合的固定凸台。
本实用新型有益效果是:本实用新型通过设置前后卡板将原有卡键和插杆代替,便于井下的作业,卡瓦不易脱落,夹持器的可靠性大大提高。 
附图说明
图1为本实用新型的结构示意图;
图2为本实用新型的卡瓦座的结构示意图;
图3为本实用新型的卡板的结构示意图;
图中标记为: 1、主油缸,2、副油缸,3、卡瓦座,301、凹槽,4、卡板,401、卡孔凸台,402、固定凸台,5、高强螺栓,6、卡瓦。
具体实施方式
如图所示,一种无卡键及插杆的夹持器,由两个卡瓦座3相对对接而成,两个卡瓦座3分别连接油缸对其压紧,并在对接位置组成座孔,在座孔内设置卡瓦6,通过在两半卡瓦座前后面上设置两个槽和多个螺纹孔,将卡板4放置于槽内,采用多个高强螺栓将卡板4固定在卡瓦座上,卡瓦座上设置有圆弧形的卡孔凸台401与卡瓦座的座孔相配合,使卡板4的位置固定;前后卡板上设置有四个固定凸台402与卡瓦配合,将卡瓦卡设有座孔内,防止卡瓦在座孔内产生圆周运动,起到对卡瓦的固定作用。

Claims (3)

1.一种无卡键及插杆的夹持器,包括对称设置的两个卡瓦座(3),以及分别设置在两个对接设置的卡瓦座(3)座孔内用于夹持钻杆的卡瓦(6),两个卡瓦座(3)的两端分别设有对其施力的主油缸(1)和副油缸(2),其特征在于:所述的卡瓦座(3)座孔的边缘设有凹槽(301),在凹槽(301)内设有与有凹槽(301)相匹配的卡板(4),卡板(4)将卡瓦(6)固定在卡瓦座(3)座孔内。
2.如权利要求1所述的一种无卡键及插杆的夹持器,其特征在于:所述的卡板(4)上设有与卡瓦座(3)座孔相匹配的卡孔凸台(401)。
3.如权利要求1所述的一种无卡键及插杆的夹持器,其特征在于:所述的卡板(4)上设有与卡瓦(6)相配合的固定凸台(402)。
CN201420708719.6U 2014-11-24 2014-11-24 一种无卡键及插杆的夹持器 Active CN204225801U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104989298A (zh) * 2015-07-20 2015-10-21 淮南矿业(集团)有限责任公司 夹持器
CN105888580A (zh) * 2016-06-14 2016-08-24 北京龙恒业石油工程技术有限公司 举升机旋转管柱固定卡瓦装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104989298A (zh) * 2015-07-20 2015-10-21 淮南矿业(集团)有限责任公司 夹持器
CN105888580A (zh) * 2016-06-14 2016-08-24 北京龙恒业石油工程技术有限公司 举升机旋转管柱固定卡瓦装置
CN105888580B (zh) * 2016-06-14 2019-03-05 北京一龙恒业石油工程技术有限公司 举升机旋转管柱固定卡瓦装置

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Address after: 467000 Henan province Pingdingshan City Beihuan South (Xinhua District Industrial Park Road West)

Patentee after: HENAN TIEFULAI EQUIPMENT MANUFACTURING CO., LTD.

Address before: 467000 Henan province Pingdingshan City Beihuan South (Xinhua District Industrial Park Road West)

Patentee before: Pingdingshan Tiefulai Electronic and Mechanical Equipment Co., Ltd.

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Address after: 467000 South North Ring Road, Pingdingshan City, Henan Province (West of Xinhua Industrial Park)

Patentee after: Tiefulai Equipment Manufacturing Group Co.,Ltd.

Address before: 467000 South North Ring Road, Pingdingshan City, Henan Province (West of Xinhua Industrial Park)

Patentee before: HENAN TIEFULAI EQUIPMENT MANUFACTURING Co.,Ltd.

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