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Side tooth gage reamer

A technology of reamer and edge teeth, which is applied in drilling equipment, earthwork drilling, drill bits, etc., can solve problems such as failure to work normally, wheel drop accidents, bearing wear, etc., and achieve the effect of enhancing the diameter-keeping effect and protecting the sealing system.

Inactive Publication Date: 2011-02-02
TIANJIN LILIN BIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the seal fails, the mud carries debris and other impurities into the bearing seal cavity, the bearing will be severely worn and cannot work normally, and sometimes a wheel accident may occur

Method used

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  • Side tooth gage reamer
  • Side tooth gage reamer
  • Side tooth gage reamer

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Experimental program
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Embodiment Construction

[0017] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. As shown in the figure, a side tooth diameter reamer includes a reamer body 40 and a cone assembly composed of a cone and a cone seat. The reamer body is mainly provided with drill pipe joints at both ends. Threaded body mandrel 11, ring plate 13, main board 14, front guide plate 12, rear guide plate 15, radial water pipe 16, inclined water pipe 17 are formed, and described front guide plate, ring plate, main board, rear guide plate are from going to Afterwards, it is fixed on the mandrel of the body in turn, and no less than three cone seat mounting holes 140 are evenly distributed on the circumference of the main board, and the radial water pipe is placed behind the front guide plate and radially penetrates the mandrel of the body , the inclined water pipe is placed between the cone assemblies on the fro...

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Abstract

The invention relates to a side tooth gage reamer which is characterized by mainly comprising a reamer body and toothed wheel assemblies comprising toothed wheels and toothed wheel seats, wherein the reamer body mainly comprises a body mandrel of which two ends are provided with drill rod joint threads, an annular plate, a main plate, a front guide plate, a rear guide plate, a radial water pipe and an inclined water pipe; the front guide plate, the annular plate, the main plate and the rear guide plate are sequentially and fixedly connected to the box mandrel from front to back; not less than three toothed wheel seat mounting holes are uniformly distributed on the circumference of the main plate; the radial water pipe is arranged behind the front guide plate and passes through the body mandrel; and the inclined water pipe is arranged between the toothed wheel assemblies at the front side of the main plate and radially passes through the body mandrel. The invention has the advantages that the replaceable toothed wheel assemblies are adopted, and the reamer can be continuously used only by replacing new toothed wheel assemblies; and in the toothed wheel assembly, the toothed wheel seat is used for replacing a palm back, thereby avoiding damages caused by rock debris and sediments at the bottoms of hole walls and indirectly protecting a sealing system of toothed wheel assembly bearings.

Description

technical field [0001] The invention belongs to geological drilling tools, in particular to a side tooth diameter-gauge reamer. Background technique [0002] With the development of pipeline transportation of fluid media, the drilling and reaming operations of pipeline holes crossing rivers, lakes, highways, railways and even mountains are gradually increasing, and the use of crossing reamers is becoming more and more frequent. The main structure of the cutting unit of the reamer is the cone and the palm part. The sealing effect of the bearing formed by the cone hole and the palm shaft directly affects the service life of the reamer. A hole reamer of the prior art, the back of the palm of the tooth is close to the wall of the hole to be reamed. Since the reaming operation of the reamer is generally a horizontal or near-horizontal operation, a large amount of sand and rock debris are deposited in the lower part of the tunnel, and the grinding and erosion of the back of the p...

Claims

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Application Information

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IPC IPC(8): E21B10/18E21B10/28
Inventor 刘子洲
Owner TIANJIN LILIN BIT
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