System and method of tracking flat surfaces of a component of a drilling machine

Patent metadata

Field	Value
Publication number	US-11220872-B2
Application number	US-201916549807-A
Country	US
Kind code	B2
Filing date	Aug 23, 2019
Priority date	Mar 27, 2019
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

A drilling machine includes a mast, a rotary head movably coupled to the mast, a drill string component having a pair of opposed flat surfaces, and a securing structure including engagement surfaces shaped to engage the opposed flat surfaces and secure the drill string component from rotating. The drilling machine also includes a controller configured to track a rotational location of the flat surfaces of the drill string component during rotation of the drill string component. The controller is further configured to receive tracking information from a sensor associated with the rotary head and control the rotary head to align the opposed flat surfaces for engagement by the securing structure.

First claim

What is claimed is:

1. A drilling machine comprising:
a mast;
a rotary head movably coupled to the mast;
a drill string component having a pair of opposed flat surfaces;
a securing structure including engagement surfaces shaped to engage the opposed flat surfaces and secure the drill string component from rotating; and
a controller configured to track a rotational location of the opposed flat surfaces of the drill string component during rotation of the drill string component; the controller further configured to
receive tracking information from a sensor associated with the rotary head; and
control the rotary head to align the opposed flat surfaces for engagement by the securing structure.

2. The drilling machine of claim 1 , wherein the securing structure is at least one of a pipe storing carousel or a deck wrench.

3. The drilling machine of claim 1 , wherein the engagement surfaces are provided on arms of a pipe storing carousel.

4. The drilling machine of claim 1 , wherein the controller is further configured to retrieve an initial location of the opposed flat surfaces based on a location of the engagement surfaces on a pipe storing carousel.

5. The drilling machine of claim 1 , wherein the controller is further configured to retrieve an initial location of the opposed flat surfaces based on an engagement of the opposed flat surfaces by engagement surfaces on a deck wrench.

6. The drilling machine of claim 1 , wherein the tracking of the location of the opposed flat surfaces takes place during coupling and decoupling of the drill string component to an additional drill string component.

7. The drilling machine of claim 1 , wherein the drill string component is coupled to a plurality of additional drill string components and the controller is further configured to track a location of the opposed flat surfaces of the drill string component and the plurality of additional drill string components.

8. The drilling machine of claim 1 , wherein the drill string component is a first drill string component, and the controller is further configured to track a rotational location of the opposed flat surfaces of the first drill string component, and track a rotational location of opposed flat surfaces of a second drill string component when the first pair of opposed flat surfaces rotates with respect to the second pair of opposed flat surfaces.

9. The drilling machine of claim 1 , wherein the drill string component is a drill bit.

10. The drilling machine of claim 1 , wherein the sensor includes at least one of a proximity sensor, a hall effect sensor, or a rotational encoder.

11. A mobile drilling machine system comprising:
a mast;
a rotary head movably coupled to the mast;
a drill string component having a pair of opposed flat surfaces;
a pipe storing carousel supporting the drill string component;
a pair of opposed engagement surfaces in the pipe storing carousel that engage the opposed flat surfaces of the drill string component;
a sensor configured to detect a rotation of the rotary head; and
a controller configured to control the rotary head to rotate the drill string component into alignment with the pair of opposed engagement surfaces in the carousel based on a change in a rotational location of the drill string component determined at least in part by the detected rotation.

12. The mobile drilling machine of claim 11 , wherein a first said pair of opposed engagement surfaces are provided on arms of the carousel.

13. The mobile drilling machine of claim 12 , further comprising a deck wrench, wherein a second said pair of opposed engagement surfaces are provided on the deck wrench.

14. The mobile drilling machine of claim 11 , wherein the controller is further configured to retrieve an initial location of the opposed flat surfaces based on a location of the opposed engagement surfaces on the pipe storing carousel.

15. The mobile drilling machine of claim 11 , wherein the drill string component is a first drill string component and the opposed flat surfaces of the first drill string component are a first pair of opposed flat surfaces, and wherein the controller is configured to track a change in rotational location between the first pair of opposed flat surfaces and a second pair of opposed flat surfaces of a second drill string component when the first pair of opposed flat surfaces rotates with respect to the second pair of opposed flat surfaces during a decoupling of the first and second drill string components.

16. A method for tracking a pair of flat surfaces of a drill string component comprising:
determining a rotational location of the pair of flat surfaces;
performing a drilling operation that includes rotating the drill string component;
tracking a change in the rotational location of the pair of flat surfaces during the drilling operation; and
automatically rotating the drill string component by an amount determined to place the drill string component in alignment with a deck wrench based on the tracked change in the rotational location.

17. The method of claim 16 , wherein a plurality of engagement surfaces are provided on an arm of a pipe storing carousel.

18. The method of claim 16 , wherein a plurality of engagement surfaces are provided on the deck wrench.

19. The method of claim 16 , wherein the tracking the change in the rotational location of the pair of flat surfaces is performed during a coupling of a first drill string component to a second drill string component.

20. The method of claim 16 , wherein the tracking the change in the rotational location of the pair of flat surfaces is performed during a decoupling of a first drill string component and a second drill string component.

Assignees

• Caterpillar Global Mining Equipment Llc
• Caterpillar Global Mining Hms Gmbh

Inventors

• Diekmann Timo
• Hoult Ross L
• Moberg Carl J
• Glover Rex
• Kuissi Hyppolite
• Taylor Samuel C
• Shahid Ahsan

Classifications

• E21B19/146 Primary

  Carousel systems, i.e. rotating rack systems · CPC title

• E21B19/165 Primary

  Control or monitoring arrangements therefor · CPC title

• E21B7/025

  Rock drills, i.e. jumbo drills · CPC title

• E21B3/02

  Surface drives for rotary drilling · CPC title