Drilling Machine Pressure Regulating Valve

I. Product Introduction

Rock drilling machine is a composite complete equipment, composed of mechanical main body, functional units, and transmission mechanisms, and can also be modified for use as rock and soil excavation equipment. This equipment is widely used in geological exploration and comprehensive mineral resource development, covering solid, liquid, and gaseous mineral extraction scenarios. Through drilling tools penetrating underground, it collects underground physical geological samples, assisting in underground geological structure and mineral resource survey and assessment.

II. Basic Operation Functions

The equipment can drive the drill bit to displace and break hole bottom rock, while completing the reciprocating operations of lowering the drill bit into the hole and extracting it; can drill rock cores and ore cores, collect cuttings, gaseous and liquid mineral samples, comprehensively survey underground geological structures and mineral reserves, suitable for field geological drilling and mining sampling operations.

III. Core Connection Assembly Structure

1. Pin shaft connection structure: Eye bolt and eye bolt seat are connected via pin shaft, ensuring flexible hinge movement;

2. Welded fixed structure: Eye bolt seat and hook rod are connected by integrated welding process, with stable connection integrity;

3. Threaded locking structure: Cylinder body and hook are connected by left-hand thread, with stop block positioning and locking, preventing thread loosening under working conditions;

4. Sliding adaptation structure: Hook body and cylinder body can slide vertically along the hook rod outer wall, suitable for drilling feed and rebound displacement operations.

IV. Spring and Oil Circuit Working Principle

The equipment is equipped with internal and external load springs. After drill bit startup and lowering operation is completed, the springs release elastic force, driving components to rebound upward. The cylinder body contains a serrated thrust bearing that divides the internal oil chamber into independent dual-chamber structure, with dedicated oil passage holes at the bearing serration positions to regulate hydraulic oil flow direction. Through oil flow damping, it buffers hook impact vibration during perforation operations, weakens mechanical hard contact, protects drill rod joint fastening screws, and reduces thread collision damage.

V. Positioning Anti-rotation Device

The upper end of the cylinder body is equipped with a positioning assembly, composed of 6 sets of small springs combined with a positioning disc. Through friction generated by the positioning structure and the ring contact surface of the lifting wheel seat, when the equipment is suspended and lifted, it can limit the autonomous rotation of the lifting ring, ensuring stable drilling operation posture.

VI. Core Product Features

1. Modular composite structure, mechanical, unit, and mechanism integrated combination, the complete machine is suitable for the full process of underground drilling and sampling operations;

2. Diverse connection processes, pin hinge, welding, and left-hand thread multiple connections, convenient disassembly and assembly, excellent locking and anti-loosening performance;

3. Built-in buffering and shock-absorbing oil circuit, oil flow damping weakens drilling impact, protects drill rod connectors, reduces component loss;

4. Dual load spring linkage rebound, drill bit start-stop action controllable, lowering and rebound operations smoothly linked;

5. Upper friction positioning structure, effectively limits lifting ring rotation, improves high-altitude suspension operation safety;

6. Wide sampling adaptability, can collect solid, liquid, and gaseous mineral geological samples, suitable for diverse exploration conditions.