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Cone reamer

A technology of hole reamer and roller cone, which is applied in the direction of drilling equipment, earthwork drilling, drill bits, etc. It can solve the problems of the structure of the roller cone used for reaming and the impact on the life of the bearing, the limitation of the size of the roller cone bearing, and the size is not large, etc., to achieve Simple structure, simple processing, good wear resistance effect

Inactive Publication Date: 2010-07-28
中成新星油田工程技术服务股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the hole reamer is limited by the size of the reaming hole, especially the size of the hole to be reamed is not large, the size of the cone bearing is limited, and the structure and bearing life of the reaming cone are affected.

Method used

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  • Cone reamer
  • Cone reamer
  • Cone reamer

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Experimental program
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Embodiment Construction

[0016] The technology of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0017] like figure 1 The reaming cone assembly of the present invention shown in the present invention comprises tooth claw 1, inlaid synthetic polycrystalline diamond block sliding bearing sleeve 2 (sliding bushing for short), the cone 3 (abbreviated as tooth) of inlaid and welded artificial polycrystalline diamond block bearing sleeve 2 Wheel), thrust limit slip ring 4 (referred to as thrust limit slip ring) with thread and artificial polycrystalline diamond block, and cone reamer short circuit 5. figure 2 It is a structural schematic diagram of the threaded jaw 1 . image 3 It is a schematic diagram of a sliding bearing sleeve for inserting and welding an artificial polycrystalline diamond block 6 . The working surface of the sliding bearing sleeve is inlaid and welded with an artificial polycrystalline diamond block 6,...

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Abstract

The invention relates to a tool used for underground reaming in the fields of petroleum, geology, coal mines and the like, in particular to a man-made polycrystalline diamond sliding bearing cone reamer which has simple structure and long service life and belongs to the mechanical manufacture technical field. The cone reamer at least contains a jaw with a gewindezapfen, wherein the shaft neck of the jaw is provided with a sliding shaft sleeve embedded with man-made polycrystalline diamond blocks, a cone of a sliding sleeve embedded with man-made polycrystalline diamond blocks and a reamer assembly composed of a threaded anti-thrust limit slip ring embedded with man-made polycrystalline diamond blocks; and the reamer assembly is arranged on a reamer pup joint to form the cone reamer. As the reaming cone uses the man-made polycrystalline diamond sliding friction pair as the cone bearing, thus canceling weaker ball cone locking device and greatly prolonging the life of the reaming cone bearing; and the cone reamer is characterized by simple and firm structure and easy processing.

Description

technical field [0001] The invention relates to a tool for downhole reaming in the fields of petroleum, geology, coal mines, etc., in particular to an artificial polycrystalline diamond sliding bearing roller reamer with simple structure and long service life, which belongs to the technical field of mechanical manufacturing. Background technique [0002] The roller cone bit reamer is mainly used for reaming the hard rock well section, and its effect is better. However, because the reamer is limited by the size of the reaming hole, especially the size of the hole to be reamed is not large, the size of the cone bearing is limited, and the structure and bearing life of the reaming cone are affected. It is an important problem to be solved at present to solve the life of the reamer cone bearing of the small-sized reamer. Contents of the invention [0003] The object of the present invention is to address the deficiencies in the prior art and provide a reaming roller reamer fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/32E21B10/46
Inventor 蔡镜崙
Owner 中成新星油田工程技术服务股份有限公司