CAT CUBEX QXR 1120 10268 Operator Manual BI620147 - PDF DOWNLOAD

Operators Manual

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Cubex Ltd.

1218 Redonda St., Box 13, Grp 524, RR5

Winnipeg, Manitoba

Canada, R2C 2Z2

Phone: (204) 694-5505

Main Fax: (204) 633-0665

www.cubex.net

Section 1 Introduction

1.1 Drill Description

The Cubex Megamatic QXR series of drills are designed to deliver maximum drilling efficiency and flexibility using a Down-the-hole Hammer. The QXR 1120 is a track drill with a boom-mounted feed system that drills with a pneumatic DTH hammer. The QXR 1120 with a 1150 cfm (543 l/s) at 500 psi (34.5 bar) compressor, a mast with carousel capable of handling 20 ft. (6 m) drill pipe and a Cummins engine. The QXR 1120 also offers up to 1350 cfm (637 l/s) @ 350 psi (24.1 bar) air capacity.

The QXR is designed to drill up to 8” (203 mm) diameter holes to a depth of 140 feet (42.7 m) without adding drill pipe to the carousel.

The QXR 1120 drills at sea level with a 4 in. to 5 in. DTH Hammer to a depth of 140 ft. (42.7 m) without reloading the carousel and to greater depth with reloading. The drill is designed to flexibly switch between Production Drilling, Pre-Split or Pre-Shear drilling and, with options, Reverse Circulation sample drilling.

1.2 Manual Objectives

This manual covers a description and the operation of the Cubex QXR drill and can be used as a training aid for Cubex’s Operator Training Course.

The Objective of this manual is to familiarize operators with the following:

• Major components and sub-assemblies of drill

• Layout of controls and what they operate

• Drilling

• Maintenance

• Operator Safety

• Troubleshooting

1.3 Drill Orientation

The operator's right hand side is the drill's right hand side with the operator standing at the tram step facing the mast (Fig 1.1).

Mast Operator Compressor Engine

Side

Fig 1.1 Orientation

Section 2 Description of Equipment

2.1 Major Components and Sub-assemblies

NOTE: All items shown in Section 2.1 are grouped together by location. The components DO NOT necessarily work together. Refer to item descriptions for operational functions. For this section, your drill has been grouped into the following areas.

Refer to Fig 2.1.1

1. Mast and Feed

2. Frame

3. Rear

4. Operator’s Cab

Fig 2.1.1 Drill Areas - top views

Fig 2.1.2 Mast

Fig 2.1.3 Boom Cylinders

2.1.1 Mast and Feed

Refer to Fig 2.1.2, Fig 2.1.3, Fig 2.1.4, Fig 2.1.5, Fig 2.1.6, and Fig 2.1.7

1. Boom

The 9 ft. boom allows great flexibility in mast positioning.

2. Boom Lift

This cylinder raises and lowers the boom from 10° below horizontal to 45° above.

3. Boom Swing Cylinder

The swing cylinder moves the boom from 30° to the left and 35° to the right.

4. Mast Dump Cylinder

This cylinder moves the mast from a horizontal position to 45° past the vertical axis (135° total from horizontal).

5. Mast Swing Cylinder

The mast swing cylinder has two positions. One allows the mast to be moved ± 30° from vertical in the perpendicular axis from the drill.

The cylinder can be repositioned to allow the mast to be moved 15° above horizontal.

6. Mast Assembly

The mast overall length is 32’7” (9931mm) with 24’ (7315mm) of head travel. An option of 19’ (5791mm) of head travel is available.

A chain feed system that uses a powerful hydraulic cylinder provides hoisting and pull down power. Hoisting force is 10,600lbs (47kN) and pull down force is 10,600lbs (47kN).

A hydraulic centralizer with a maximum size of 8 3/8” (219mm) along with a hydraulically actuated slip plate (size varies on drill pipe used).

7. Cable Chain

Air and hydraulic hoses are protected on the mast by the cable chain.

8. Mast Valve Junction Box

Mast mounted valve assembly for mast controls. See Fig 2.1.5 for layout.

1. Lower Breakout Clamp

2. Carousel Rotation

3. Clamp

4. Arm

5. Divertor

6. Centralizer

7. Upper Breakout Clamp

8. Breakout

9. Winch

Fig 2.1.4 Mast

9. Pipe Arm Sequence Valve Manifold

10. Feed Extension Cylinder

Extends the mast into contact with the rock. It has 60” (1500mm) of travel.

11. Digital Guidance System

See the Cubex Terra DGS Operation Manual in the back of this manual for more information.

12. Carousel Assembly

The carousel holds up to six rods. These rods can be up to 20’ (6m) long and 3½” (89mm) to 5” (127mm) Diameter.

13. Cable Weight

Maintains constant tension on the winch cable to prevent free/unwanted movement of the cable.

14. Top Drive

Hydraulically driven by two high torque motors, the top drive has a torque capacity of 4225 ft-lbs (5730 Nm) @3000psi (207bar) standard or an option of 6280 ft-lbs (8517Nm).

The speed is infinitely variable between 0 to 80 rpm.

Incorporated into the top drive is the splined piston breakout system, which eliminates the need for wrenches to breakout drill pipe.

15. Grease Injector Bank

Bank of grease injectors to centralize grease points. This makes the grease points more accessible, resulting in improved greasing of components. There are 4 separate banks of injectors located on the drill (on the mast, the mast boom, the cab boom, and the frame). See Fig 2.1.7.a, Fig 2.1.7.b, and Section 5.2.3 for details.

16. Triple Jaw Breakout System

A combination of three jaws used to breakout drill tool joints. See Fig 2.1.6 for details.

17. Divertor Assembly

Debris and water from hole are diverted from passing to the centralize assembly along the drill pipe.

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