CN2565972Y - 液压钻杆动力钳 - Google Patents

液压钻杆动力钳 Download PDF

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Publication number
CN2565972Y
CN2565972Y CN 02214116 CN02214116U CN2565972Y CN 2565972 Y CN2565972 Y CN 2565972Y CN 02214116 CN02214116 CN 02214116 CN 02214116 U CN02214116 U CN 02214116U CN 2565972 Y CN2565972 Y CN 2565972Y
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China
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utility
model
drilling rod
lifting
rod power
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Expired - Fee Related
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CN 02214116
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English (en)
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时永生
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Individual
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Abstract

一种液压钻杆动力钳，涉及油田钻井技术领域，特征在手：下壳体(1)的吊装口(2)设置有加强筋(3)，吊装口(2)处的连接圆弧半径R大于333mm，坡板槽(4)与吊装口(2)连接部分没有螺孔。该实用新型强度高、寿命长、使用费用低。

Description

液压钻杆动力钳
一、技术领域
涉及油田钻井技术领域，特别是一种钻井用的动力钳。
二、背景技术
液压钻杆动力钳是一种广泛应用于矿场作业的钻井工具，它的性能、工作可靠性、造价、维修费用直接影响到一口井的作业进度和成本。现有的液压钻杆动力钳结构上存在以下缺陷：1、钳头吊装口处强度低，受冲击力后容易断裂；2、坡板槽处是大钳的一个加紧力作用点，而螺孔会造成应力集中，使液压钻杆动力钳的下壳体在此处产生裂缝，而大钳的吊装口则位于此裂缝尽头，所以大钳易在此产生断裂而失效。因此老产品普遍存在着强度低、寿命短、费用高的缺陷。
三、发明内容
本实用新型的目的是提供一种强度高、寿命长、费用低的液压钻杆动力钳。
本实用新型包括有钳头装置、传动装置、吊杆装置、夹紧装置、移送装置，钳头下壳体的吊装口设置有加强筋，吊装口处的连接圆弧半径R大于333cm，坡板槽与吊装口连接部分没有螺孔。
四、附图说明
图1是本实用新型实施例的总装剖视图，图2是本实用新型实施例下壳体的主视图，图3是本实用新型实施例加强筋A-A剖图。1是下壳体，2是吊装口，3是加强筋，4是坡板槽。
五、具体的实施方式
如图2所示下壳体1外形尺寸与常规形状不变前边是钳口，钳心是圆形，在吊装口2中加工加强筋3，吊装口2处的连接半径R大于333mm，坡板槽4与吊装口2之间不设置螺孔。其他零部件均是本公司以往用件，组装成图1形状即可。

Claims (1)

1、一种液压钻杆动力钳，包括有钳头装置、传动装置、吊杆装置、夹紧装置、移送装置，其特征在于：下壳体(1)的吊装口(2)设置有加强筋(3)，吊装口(2)处的连接圆弧半径R大于333cm，坡板槽(4)与吊装口(2)连接部分没有螺孔。
CN 02214116 2002-04-17 2002-04-17 液压钻杆动力钳 Expired - Fee Related CN2565972Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02214116 CN2565972Y (zh) 2002-04-17 2002-04-17 液压钻杆动力钳

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02214116 CN2565972Y (zh) 2002-04-17 2002-04-17 液压钻杆动力钳

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CN2565972Y true CN2565972Y (zh) 2003-08-13

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CN 02214116 Expired - Fee Related CN2565972Y (zh) 2002-04-17 2002-04-17 液压钻杆动力钳

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CN (1) CN2565972Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101970792A (zh) * 2007-08-31 2011-02-09 勒瓦利工业公司 用于钻杆的抓钩装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101970792A (zh) * 2007-08-31 2011-02-09 勒瓦利工业公司 用于钻杆的抓钩装置
CN101970792B (zh) * 2007-08-31 2014-03-12 勒瓦利工业公司 用于钻杆的抓钩装置

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