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Rotor drill bit of all-hydraulic reverse circulation drilling machine

A reverse circulation and full hydraulic technology, which is applied in the direction of drilling equipment, earthwork drilling, and driving devices for drilling in boreholes, etc., can solve the problems of affecting drilling speed, poor operation effect, and low drilling accuracy, so as to improve operation Efficiency, solve drill pipe damage, good effect

Inactive Publication Date: 2015-10-21
王乐康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drilling accuracy is low and the operation effect is poor when the drilling depth exceeds 50 meters
The drilling pressure of the drill bit comes from the weight of the mud pump, reduction box, drill pipe and drill bit. Therefore, when encountering hard rock formations, dense pebble layers, and boulder layers, the pressure cannot be forced, which will seriously affect the drilling speed. can't even work

Method used

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  • Rotor drill bit of all-hydraulic reverse circulation drilling machine
  • Rotor drill bit of all-hydraulic reverse circulation drilling machine
  • Rotor drill bit of all-hydraulic reverse circulation drilling machine

Examples

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Comparison scheme
Effect test

Embodiment 1

[0066] Example 1 A rotor drill bit of a fully hydraulic reverse circulation drilling rig includes three rotor shaft seat assemblies 1, a transfer case assembly 2, a power input assembly 3, three rotor assemblies 4, and a feed pipe weldment 5 (see Figure 1-3 );

[0067] said Rotor shaft seat assembly 1 Including bearing cover 6, machine seal moving ring 7, lock nut 8, bearing seat 9, bevel gear shaft 10, machine seal guide post 11, spacer sleeve 12, machine seal static ring 13; among them, the end face shaft of lock nut 8 There are 4 threaded holes and 4 light holes staggered upwards, and there are 8 light holes corresponding to the axial direction of the mechanical seal moving ring 7 (see Figure 4-5 );

[0068] After the bevel gear shaft 10 is installed into a tapered roller bearing near the shoulder of the bevel gear, it is loaded into the bearing seat 9, and another identical tapered roller bearing is installed into the second shoulder of the bevel gear shaft 10; The...

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Abstract

The invention provides a rotor drill bit of an all-hydraulic reverse circulation drilling machine. The rotor drill bit comprises three rotor shaft seat assemblies, a transfer case assembly, a power input assembly, a rotor assembly, and a conveying pipeline welding member. When a motor of the rotor drill bit works, the motor drives three rotors and rotor vertical drills to rotate at the same time, what is equal to that a plurality of drills drill at the same time, and the work efficiency of a large-aperture drill can be raised. Because the rotor drill bit is individually driven by the motor, forces applied to a drilling rod and a power head are distinctly reduced, and problems that the power of a drilling machine is insufficient and a drilling rod is easy to damage can be solved. The rotor drill bit can be easily use for drilling a large deep hole, the technical issue which is badly needed to be solved can be solved. The rotor drill bit of the all-hydraulic reverse circulation drilling machine can be used for drilling clay and sandy soil geological stratifications, also can be used for drilling wide aperture holes in lithosphere, and the drilling speed is quick and the efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of drilling rigs, and relates to a rotary wing drill bit of a full hydraulic reverse circulation drilling rig. Background technique [0002] Rotary drilling rig is a construction machine suitable for hole-forming operations in building foundation engineering. Most of the drill bits used in the rotary drilling rigs widely used in the market are gantry drill bits and three-wing straight drill bits, which are generally made by users themselves. The drilling accuracy is low and the operation effect is poor when the drilling depth exceeds 50 meters. The drilling pressure of the drill bit comes from the weight of the mud pump, reduction box, drill pipe and drill bit. Therefore, when encountering hard rock formations, dense pebble layers, and boulder layers, the pressure cannot be forced, which will seriously affect the drilling speed. Can't even work. It is more difficult to construct in hard rock formations, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B4/02E21B10/43
Inventor 王乐康佘乐于文杨晓东
Owner 王乐康
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