Hydraulic accumulator

I. Product Introduction

The rock cutting machine, also known as a drilling excavator, is a composite geotechnical drilling equipment composed of mechanical components, functional units, and linkage mechanisms. It is mainly used for geological exploration and mineral resource development operations, and can be adapted to various mining conditions including solid, liquid, and gas mineral extraction. The equipment is equipped with specialized drilling tools to perform underground operations, capable of collecting rock cores, ore cores, rock cuttings, as well as gaseous and liquid geological materials, accurately obtaining underground geological data to provide data support for mineral surveying and geotechnical investigation.

The main function of the equipment is to drive the drill bit to move and break rocks at the bottom of the hole, while simultaneously completing the reciprocating operations of drill bit lowering and lifting, and completing rock layer drilling and sampling. The equipment component connection specifications: eye bolts and eye bolt seats are hinged through pins, eye bolt seats and hook rods are welded into one piece; the cylinder body and hook are connected with left-hand threads, equipped with a stop block for locking to prevent thread loosening under stress. The hook body and cylinder body can slide vertically along the hook rod to adapt to drill bit lifting operations; the equipment is equipped with internal and external load springs, which relax when the drill bit is lowered and spring back upward after the equipment starts. The cylinder body is internally equipped with a spline thrust bearing that separates the oil chamber into two independent chambers, with oil holes on the spline for communication, relying on oil flow guidance damping to absorb impact vibration of the hook body during perforation operations, reducing wear on drill pipe joint screws. The upper end of the cylinder body consists of 6 small springs and a positioning plate to form a positioning device, relying on contact surface friction to prevent the lifting ring from rotating during suspended hoisting, ensuring construction safety.

II. Overall Structure Description

1. Connection structure: Eye bolts and eye bolt seats are connected with pins, eye bolt seats and hook rods are welded into one piece; cylinder body and hook are connected with left-hand threads, equipped with stop blocks for anti-loosening.

2. Sliding structure: Hook body and cylinder body can slide vertically along the hook rod to adapt to drill bit lifting operations.

3. Elastic structure: Equipped with internal and external load springs to control drill bit lowering and rebound start/stop actions.

4. Hydraulic structure: Built-in thrust bearing separates dual oil chambers, with interconnected oil holes to achieve oil circuit buffering and shock absorption.

5. Positioning structure: Upper end spring + positioning plate combination for positioning, preventing lifting ring rotation.

III. Product Features

1. Integrated structural design with strong coordination between mechanisms, integrating rock breaking, drill bit lifting, and geological sampling functions, with a streamlined workflow;

2. Reliable connection methods, combining pin hinging, welding, and left-hand thread multiple fixation methods, with specialized anti-loosening components, providing strong overall structural stability;

3. Built-in hydraulic buffer structure, using oil circuit damping to reduce operational impact loads, protecting drill pipes and connectors, reducing frequency of component wear;

4. Equipped with mechanical anti-rotation positioning components, adaptable to field and downhole variable hoisting conditions, preventing lifting ring rotation, improving construction safety;

5. Wide adaptability range, can be adapted to multiple forms of geological sampling, covering mineral extraction and infrastructure drilling various working conditions, with good equipment versatility.

IV. Application Areas

Widely used in solid, liquid, and gas mineral exploration and extraction, also adaptable to construction site infrastructure rock layer drilling, mine field drilling, downhole geological sampling, geotechnical engineering investigation and other operational scenarios.

V. Usage Precautions

1. Regularly inspect pin welding points and left-hand thread connection parts, check for loosening and cracking hazards;

2. Keep hydraulic oil in the cylinder body clean, promptly clean oil hole impurities, ensure normal oil circuit shock absorption function;

3. Regularly test internal and external load spring performance, replace promptly after elasticity attenuation, ensure normal drill bit opening/closing rebound;

4. Before suspended hoisting of equipment, inspect the upper positioning component condition, avoid operational risks from lifting ring rotation.