Drilling machine power head assembly, drilling machine power drill bit, and spiral drilling and production machine

Abstract

The invention is applicable to the technical field of coal mining, and provides a drilling machine power head assembly which comprises a drill rod driving reduction gearbox, a planetary reducer, and a variable hydraulic motor. The drill rod driving reduction gearbox is used for mounting a drill rod of a drilled coal seam; the drill rod driving reduction gearbox is mounted on the planetary reducer and is in transmission connection with the planetary reducer; and the variable hydraulic motor is used for providing power for the planetary reducer, so that the drill rod mounted on the drill rod driving reduction gearbox realizes multi-gear or stepless speed change. The drilling machine power head assembly has the advantages that the structure is simple, the size is small, the weight is light, and movement and transition in a narrow roadway can be conveniently achieved; a hydraulic driving mode is adopted, so that unsafe factors such as overload stalling do not exist; flexible connection is adopted, impact generated when loads change frequently is small, and the failure rate of damage to the reduction gearbox is low; and the multi-gear or the stepless speed change can be realized to adapt to geological conditions of complex coal seams. The invention further provides a drilling machine power drill bit and a spiral drilling and production machine based on the drilling machine power head assembly.

Description

technical field [0001] The invention belongs to the technical field of coal mining, and in particular relates to a power head assembly of a drilling rig, a power drill bit of a drilling rig, and an auger drilling machine. Background technique [0002] Thin, medium-thick, and thick coal seams coexist in most coal-producing areas in my country, among which thin coal seams are rich in reserves. The national thin coal seam reserves below 1.3m account for about 20% of the total coal reserves. However, the mining of thin coal seams is extremely difficult, low in efficiency and poor in safety, and other problems have always restricted the production continuity and sustainable development of coal enterprises, resulting in premature failure of some mining areas, which has made the task of tapping the potential and utilization of coal resources in my country increasingly serious. Doing a good job in mechanized mining of thin coal seams is of great significance to the protection and...

AI Technical Summary

Problems solved by technology

However, the mining of thin coal seams is extremely difficult, the work efficiency is very low, and the safety is poor. Problems have always restricted the production continuity and sustainable development of coal enterprises, resulting in the premature failure of some mining areas, which has led to the increasing task of tapping the potential and utilization of coal resources in our country.

[0005] 1. The drive mechanism in which the motor is directly connected to the mechanical gearbox is bulky and heavy (about 50 tons). When mining, a wide roadway needs to be excavated, which is not conducive to moving and transitioning in a narrow roadway, and excavation Wider roadways will increase the construction cost of coal mines;

[0006] 2. The drive mechanism in which the motor is directly connected to the mechanical gearbox, the drive motor has unsafe factors such as motor overload and stalling;

[0007] 3. The driving mechanism is a rigid mechanical connection. Due to the complex internal structure of the mechanical gearbox, the driving mechanism will produce a large impact when the load changes frequently, causing damage to the gearbox, and the maintenance cost of the gearbox is high;

[0008] 4. The speed of the driving mechanism is constant, and the speed cannot be adjusted in real time according to the demand

Images