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Multiple Cutters on a Degradation Pick

a degradation pick and multi-cutting technology, applied in the direction of earth drilling, cutting machines, etc., can solve the problems of affecting the durability of degradation picks, and affecting the use of degradation picks, etc., to achieve the effect of increasing durability

Inactive Publication Date: 2015-07-30
NOVATEK IP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a degradation pick for degrading a surface. The pick includes a conical body with a pointed end and a substrate attached to the pointed end. The substrate contains a cutter with sintered polycrystalline diamond attached to carbide. The cutter can be disposed inside or outside the cavity of the conical body. The cutter can also have a conical, hemispherical, or cylindrical geometry. The pick can be attached to a drilling machine or a rotatable drum. The technical effects of this invention include increased durability and improved surface degradation.

Problems solved by technology

Such uses can wear down a degradation pick quickly.
As the steel body wears it may fail prior to the super hard tip, prematurely ending the life of the pick.
For example, degradation picks secured to the exterior of a rotating drum may tend to wear on surfaces facing the direction of rotation since these surfaces are most likely to impact a surface.
While this offset may provide a cleaner side wall, it may also expose an exterior of the steel body to impact from a road surface without protection from the super hard cutter.

Method used

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  • Multiple Cutters on a Degradation Pick
  • Multiple Cutters on a Degradation Pick
  • Multiple Cutters on a Degradation Pick

Examples

Experimental program
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Effect test

Embodiment Construction

[0019]Referring now to the figures, FIG. 1 discloses a front orthogonal view of a rotatable drum 100 such as may be used in road milling, mining or construction. A plurality of blocks 110, each comprising a hole 115 therein, may be disposed around an exterior surface of the rotatable drum 100. A plurality of degradation picks 120, each comprising a substantially conical body 125 comprising a pointed end 130 opposite a shank (hidden), may be secured to the plurality of blocks 110 by disposing each shank within a hole 115. The rotatable drum 100 may be rotated to bring a super hard tip 135 disposed on the pointed end 130 into contact with and degrade a surface.

[0020]While the plurality of blocks 110 are generally positioned such that the pointed end 130 may face in a direction of rotation, it is known to position blocks substantially adjacent an edge of a rotatable drum at an angle offset from a line perpendicular to an axis of rotation of the rotatable drum. This configuration, which...

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PUM

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Abstract

A degradation pick for degrading a surface comprises a substantially conical body with a pointed end. A shank is attached to the substantially conical body opposite the pointed end. At least one cutter is disposed within at least one cavity which itself is disposed on an exterior surface of the substantially conical body between the pointed end and the shank.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This patent application claims priority to U.S. Provisional Pat. App. No. 61 / 758,345 which is incorporated herein by reference for all that it contains.BACKGROUND OF THE INVENTION[0002]The present invention relates generally to the degradation of natural and man-made surfaces as is common in such fields as road milling, mining and construction. More particularly, the present invention relates to increasing the wear resistance of degradation picks commonly used in such processes. In road milling, for example, degradation picks may be secured to the exterior of a rotating drum and brought into engagement with a road surface to remove a layer of the surface in preparation for applying a new layer. In another example, degradation picks may be secured to links of a chain and brought into engagement with the wall of a mine to remove earthen materials. Such uses can wear down a degradation pick quickly.[0003]Degradation picks often comprise a st...

Claims

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Application Information

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IPC IPC(8): E21C35/183
CPCE21C2035/191E21C35/183E21C35/1833E21C35/191
Inventor HALL, DAVID R.LEANY, FRANCIS E.
Owner NOVATEK IP