Driving device for open-air down-the-hole drill

A technology of down-the-hole drilling rigs and driving devices, which is applied in the direction of drilling driving devices in boreholes, rotary drilling rigs, earthwork drilling, etc., and can solve problems such as poor lubrication of the box, unstable rotation, and gear fluid leakage. Achieve stable rotation, low cost, and avoid grease leakage

Pending Publication Date: 2021-12-21
GUIZHOU AEROSPACE TIANMA ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the driving device of the open-pit DTH drilling rig has the following shortcomings: 1. The structure is complex, the volume is large, and the cost is high; 2. The gear fluid leakage problem often occurs in the box; 3. The rotation is unstable, the vibration is large, and the noise is high; 4. Poor lubrication inside the box

Method used

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  • Driving device for open-air down-the-hole drill
  • Driving device for open-air down-the-hole drill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 , figure 2 The driving device for a surface down-the-hole drilling rig shown includes a sun gear 14; the power of the sun gear 14 is connected to the hydraulic motor 1, and the sun gear 14 meshes and drives a plurality of planetary gears 3 to form a planetary gear set, and the planetary gears 3 drive The planetary carrier 16 rotates, and the planetary carrier 16 is coaxially connected with the rotary main shaft 7, and the front end of the rotary main shaft 7 is equipped with a drill pipe joint 11.

Embodiment 2

[0023] Based on Embodiment 1, the rotary spindle 7 is installed in the machine base 17, and the tapered roller bearing 6 is set on the rotary spindle 7 in the machine base 17 so that there is a cavity between the machine base 17 and the rotary spindle 7, and the cavity passes through the air pipe The joint 10 communicates with the outside of the machine base 17 .

Embodiment 3

[0025] Based on Embodiment 2, a front cover 18 is installed at the front end of the base 17 , and the inner pipe space of the gas pipe joint 10 passes through the front cover 18 .

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Abstract

The invention provides a driving device for an open-air down-the-hole drill. The driving device comprises a sun gear; the sun gear is connected into a self-hydraulic motor in a power mode, the sun gear is in meshing transmission with a plurality of planet gears to form a planet gear set, the planet gears drive a planet carrier to rotate, the planet carrier is coaxially connected with a rotary spindle, and a drill rod connector is installed at the front end of the rotary spindle. An air faucet does not need to be installed, so that the structure is simple, the size is small, and the cost is low; leakage of lubricating grease can be effectively avoided; high bearing capacity, stable rotation, small vibration and low noise can be ensured; and lubricating grease can be filled inside at any time, and it is guaranteed that the movable part can be well lubricated during vertical work.

Description

technical field [0001] The invention relates to a driving device for an open-pit down-the-hole drilling machine. Background technique [0002] With the rapid development of my country's economic construction, in the fields of infrastructure construction such as mines, energy, hydropower and national defense, the amount of various rock drilling projects is increasing. Surface down-the-hole drilling rigs are mainly used for rock drilling in various projects such as open-pit mining, building foundation excavation, water conservancy, power stations, building materials, transportation, and national defense construction. It has the advantages of deep drilling, large drilling diameter, and high drilling efficiency. High, wide range of application and other characteristics, is the current general rock drilling equipment. [0003] As the power source for the drilling operation of the drilling rig, the driving device is one of the most important working mechanisms of the drilling rig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B4/20E21B4/14E21B3/02
CPCE21B4/20E21B4/14E21B3/02
Inventor 黄伟朱会昆梁力廉琦康文波穆迪马晓钢张巍李剑严鹏
Owner GUIZHOU AEROSPACE TIANMA ELECTRICAL TECH
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