Multifunctional two stage aerated support for hammer drill

• Main Authors: SHIXIN LU, YOUCHUN CHEN
• Format: Patent
• Language: English
• Published: 10.03.2004
• Edition: 7
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; SHAFTS; TUNNELS

The utility model provides a multifunctional two stage aerated support for hammer drill, consisting of two stages of cylinders. The primary cylinder comprises an outer tube, a guide sleeve, an inner tube, a piston, a bracket, etc; the secondary cylinder comprises an inner tube, a guide sleeve, a piston rod, a piston, an end cover, a support jaw component, etc. One end of the piston rod adopting the structure of inner and outer thread is provided with an air hole channel. The bracket and the cross arm on the bracket are detached and replaced by a support base; the support jaw component is detached and replaced by a connecting base which is screwed on the outer thread of the piston rod, and the cross arm is arranged on the connecting base, so the communication operation can be achieved to fulfill the different requirements of users. The bracket and the cross arm component on the bracket are detached and replaced by a bracket for supporting and protecting the top surface of mine tunnel; the supporting jaw component is detached and replaced by a bearing support which is arranged on the outer thread of the piston rod, and a one-way inlet switch is arranged on the bearing support for ground supporting to be used as a supporting column of supporting and protecting mine tunnel, thereby fulfilling that one machine serves multiple purposes.