A Crawler Hydraulic Cutting Drilling Rig with Intelligent Braking Device

Abstract

The invention provides a crawler-type hydraulic cutting drilling machine with an intelligent braking device. A hydraulic motor composed of a chain and a belt speed reducer is used as a propulsion mechanism of the crawler-type hydraulic cutting drilling machine, the intelligent braking device of the propulsion mechanism is arranged, a chain lubricating device is installed on a drill arm, a large-air-volume screw-type air compressor is adopted in an air compressor system, a cavity in a movable arm is used as a special air storage tank, a double-speed and double-torque mode is adopted in a drilling machine power head, and rotary cutting of a drill rod is controlled through a switch type hydraulic solenoid valve. In the process of cutting drilling machine transportation or site transfer, the propulsion mechanism and the drill rod can be braked, and therefore the situations that safety accidents occur and a machine is damaged due to the fact that the drill rod falls are avoided; during hole drilling, pressure is high, the rod lifting speed is high, chain maintenance is easy, the operation efficiency is high, the maintenance and replacement cost is low, the service life is long, the air compressor is simple in transmission structure and high in air exhaust rate, the pressure is stable, the hole drilling efficiency is high, the strength of the drill arm and the drill rod is high, the torsion resistance and the shock resistance are good, and a power head output shaft, a bearing and a transmission gear can be effectively protected from being damaged.

Description

technical field [0001] The invention relates to an engineering machine, in particular to a crawler-type hydraulic cutting drilling machine with an intelligent braking device. Background technique [0002] Existing hydraulic cutting drills have the following problems: [0003] 1. There is no brake in the propulsion mechanism of the drilling rig, and the only way to brake is to use a simple method of inserting a steel rod into the chain during transportation or site transfer, which is not only prone to safety accidents, but also easy to cause damage to the machine; Oil cylinder, the lifting speed is slow, the wire rope is easy to break, and the service life is short; [0004] 2. The transmission chain relies on manual lubrication, which has high labor intensity and uneven lubrication, which affects the service life of the chain; [0005] 3. The air compressor system adopts a piston compressor with small air volume, long maintenance time and short service life of the air c...

AI Technical Summary

Problems solved by technology

[0003] 1. There is no brake in the propulsion mechanism of the drilling rig, and the only way to brake is to use a simple method of inserting a steel rod into the chain during transportation or site transfer, which is not only prone to safety accidents, but also easy to cause damage to the machine; Oil cylinder, the lifting speed is slow, the wire rope is easy to break, and the service life is short;

[0004] 2. The transmission chain relies on manual lubrication, which has high labor intensity and uneven lubrication, which affects the service life of the chain;

[0005] 3. The air compressor system adopts a piston compressor with small air volume, long maintenance time and short service life of the air compressor; the air compressor air supply system has no air storage tank, and the air supply pressure and air volume are unstable, resulting in poor ballast discharge during drilling. Smooth, resulting in blockage of drilling and drill bit exhaust hole, low drilling efficiency;

[0006] 4. The drill pipe power head adopts single-speed and single-torque mode, which cannot adapt to the drilling of different hardness rock formations, the drill pipe is easily damaged, and the drilling efficiency is low; the rotary cutting of the drill pipe is controlled by pedals, and the machine operator is labor-intensive;

[0007] 5. The drilling arm of the drilling rig is mostly made of steel stamping or tailor-welded parts, which has poor rigidity and is easy to deform and crack during use;

[0008] 6. The drill pipe adopts the conical threaded body used in ordinary coal mines, which has low strength, poor torsion resistance and impact resistance, and often breaks the connecting thread and drill pipe; the drill pipe is directly connected to the power head shaft through the connecting sleeve, and the power head shaft, bearing , The transmission gear is damaged under the impact of alternating load

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