ENG RUS
The rig is designed for drilling geophysical and record holes as
well as for augering groups of holes. For the holes up to 200 m deep the
drilling is done by rotating drill pipes of 60,3mm in diameter and for the holes
of up to 300 m deep - by pipes of 50 mm in diameter with hole flushing. The rig
comprises a number of devices mounted on off-road КAMAZ-43114 (6х6) chassis.
Upon the customer's request it can be equipped with tool holding block
for the transportation of the following: drill pipes, drilling tools and
bench-work tools as well as a number of devices that make the work of a driller
easier. The major parts of the rig are: main transmission, draw works, rotary
table, positive displacement mud pump, mast, feed unit, three-speed gearbox
transmitting rotation from the main transmission to the draw works and rotary
table.
Main transmission is actuated by torque tube via power take-off.
It comprises a shaft on two bearing assemblies. One end of the shaft has V-belt
pulley wheel of mud pump, the other - drive unit pulley of the tool feed unit,
the pulley being installed on wedge key. Drive unit pulley of mud pump is
actuated by half coupling moving on shaft splines. Drive unit pulley of the tool
feed unit is constantly on. The draw works is actuated by chain transmission via
gearbox. The common draw works shaft has two drums, each being actuated
independently (friction-type coupling) and brake. One of the drums holds the
tools when drilling, the other is meant for tripping. Due to the two drums,
making a connection and tripping are done easily and fast.
Rotary table
is of standard type, with bevel gear, located in oil bath.
Mast is
triangular, tubular, welded; at the top of the derrick there is a quadruple
crown block. Hydraulic jack raises and lowers the derrick. The tool feed unit
contributes to the drilling process and performs emergency hoisting of the
tools. НБ-32 mud pump actuated by the main transmission via V-belt drive ensures
safe flushing of the well. At night the job site is illuminated by three lamps
mounted on the mast and powered by the truck battery.
| Hook load capacity, кN |
0-2.2. |
| Design speed of the auger system, с (rpm) |
0-5.02. |
| Drilling depth, m: |
|
| By drill pipes of the following diameter: |
|
| 60,3mm |
200 |
| 50mm |
300 |
| Drilling diameter, mm, less than: |
|
| by drill pipes with flushing: |
|
| top |
190 |
| bottom |
93 |
| Length of drill pipe string, m |
6.0 |
| Rated force of tool advance, кN (ton-force) |
26(2.6) |
| The height of the mast from the rotary table to crown
block axis, mm |
9.500 |
| НБ-32 mud pump |
|
| Displacement (maximum) m/h (dm/s) |
40(11) |
| Maximum pump pressure, МPa (kf/сm) |
4.0(40) |
| Overall dimensions of the rig, mm, less than |
|
| Weight, kg, less than |
14730 |
