CN210564437U - 磨鞋 - Google Patents

磨鞋 Download PDF

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Publication number
CN210564437U
CN210564437U CN201921081575.5U CN201921081575U CN210564437U CN 210564437 U CN210564437 U CN 210564437U CN 201921081575 U CN201921081575 U CN 201921081575U CN 210564437 U CN210564437 U CN 210564437U
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insert
main body
boron nitride
hard alloy
cubic boron
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CN201921081575.5U
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李勇
邢励君
徐延凯
史红伟
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TONGHUA CITY FORWARD PETROLEUM MACHINERY CO LTD
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TONGHUA CITY FORWARD PETROLEUM MACHINERY CO LTD
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Abstract

本实用新型涉及油田修井工具领域,即磨鞋。它包括后端内孔带有钻杆接头螺纹的主体、镶在主体前端的硬质合金。主体前端端面铣有多条镶槽,并对应镶槽钻有水孔,水孔与内孔相通;每条镶槽内焊接有镶块和镶块后端的YD硬质合金,在镶块上焊接有2-3块立方氮化硼刀片。镶槽优选为四条。采用的合金为纳米孪晶结构立方氮化硼材料,其硬度超过金刚石单晶,韧性优于商用硬质合金,抗氧化温度高于立方氮化硼单晶本身,该磨鞋可磨削45‑90HRC硬度的超硬材料。本工具可磨削超硬材料的井内落物,刀片抗磨耐用,刀片合金排列合理,使用寿命长,磨削效果好。

Description

磨鞋
技术领域
本实用新型涉及油田修井工具领域,即磨鞋。
背景技术
在现有技术中,磨鞋主要用于大修井时磨削油管、钻杆、封隔器、桥塞等。磨鞋结构有平底、凹底、球形等。在使用中发现,如遇到较高硬度材料(如钢级P110以上时),磨鞋的磨削效率及效果会大大降低,磨鞋上合金排列、选用不合理。
实用新型内容
本实用新型的目的是针对上述不足而提供一种使用寿命长,磨削效果好的磨鞋。
本实用新型的技术解决方案是:磨鞋,包括后端内孔带有钻杆接头螺纹的主体、镶在主体前端的硬质合金,其特征在于主体前端端面铣有多条镶槽,并对应镶槽钻有水孔,水孔与内孔相通;每条镶槽内焊接有镶块和镶块后端的YD硬质合金,在镶块上焊接有2-3块立方氮化硼刀片。镶槽优选为四条。
本实用新型的优点是:1、采用的合金为纳米孪晶结构立方氮化硼材料,其硬度超过金刚石单晶,韧性优于商用硬质合金,抗氧化温度高于立方氮化硼单晶本身,该磨鞋可磨削45-90HRC硬度的超硬材料。2、本工具可磨削超硬材料的井内落物,刀片抗磨耐用,刀片合金排列合理,使用寿命长,磨削效果好。
下面将结合附图对本实用新型的实施方式作进一步详细描述。
附图说明
图1是本实用新型结构简图。
图2是图1右视结构简图。
图3是实用新型立体结构简图。
具体实施方式
参见图1-3,零部件名称如下:主体1,内孔2,镶槽3,水孔4,镶块5,YD硬质合金6,立方氮化硼刀片7。
参见图1-3,磨鞋,包括后端内孔2带有钻杆接头螺纹(左旋)的主体1、镶在主体1前端的硬质合金。主体1前端端面铣有四条镶槽3,并对应镶槽3钻有水孔4(磨削时降温润滑),水孔4与内孔2相通。每条镶槽3内焊接有镶块5和镶块5后端的YD硬质合金6,在镶块5上通过高频感应加热设备用银基钎焊接有2-3块立方氮化硼刀片7(CBN)。YD硬质合金6按30度角度焊接,起支撑、磨削作用.立方氮化硼刀片7在镶块5上,按图示排列焊接,可增强立方氮化硼刀片7切削磨铣时的抗冲击能力,避免损伤。
上面描述,只是本实用新型的具体实施方式,各种举例说明不对本实用新型的实质内容构成限制。

Claims (2)

1.磨鞋,包括后端内孔(2)带有钻杆接头螺纹的主体(1)、镶在主体(1)前端的硬质合金,其特征在于主体(1)前端端面铣有多条镶槽(3),并对应镶槽(3)钻有水孔(4),水孔(4)与内孔(2)相通;每条镶槽(3)内焊接有镶块(5)和镶块(5)后端的YD硬质合金(6),在镶块(5)上焊接有2-3块立方氮化硼刀片(7)。
2.按照权利要求1所述的磨鞋,其特征在于镶槽(3)为四条。
CN201921081575.5U 2019-07-11 2019-07-11 磨鞋 Active CN210564437U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921081575.5U CN210564437U (zh) 2019-07-11 2019-07-11 磨鞋

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921081575.5U CN210564437U (zh) 2019-07-11 2019-07-11 磨鞋

Publications (1)

Publication Number Publication Date
CN210564437U true CN210564437U (zh) 2020-05-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921081575.5U Active CN210564437U (zh) 2019-07-11 2019-07-11 磨鞋

Country Status (1)

Country Link
CN (1) CN210564437U (zh)

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