Energy-saving arc-shaped roof rock drilling jumbo

CN122280928APending Publication Date: 2026-06-26ZHAOYUAN HEXI GOLDMINE

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: ZHAOYUAN HEXI GOLDMINE
Filing Date: 2026-05-25
Publication Date: 2026-06-26

AI Technical Summary

Technical Problem

The hydraulic systems of existing rock drilling rigs are susceptible to contamination, leading to accelerated wear, valve core jamming, and seal failure. Furthermore, they lack adaptive adjustment capabilities, affecting equipment efficiency and lifespan.

Method used

Employing a three-stage filtration unit, a contamination sensor, and a backwashing unit, combined with a differential pressure sensor, the system enables real-time monitoring and adaptive adjustment of the hydraulic oil. Through gradient filtration and online backwashing technology, it slows down wear and improves the continuous operation capability of the equipment.

Benefits of technology

It enables real-time monitoring and adaptive adjustment of hydraulic oil cleanliness, extending the service life of hydraulic components, increasing the continuous operation time of equipment, and reducing the frequency of downtime maintenance.

✦ Generated by Eureka AI based on patent content.

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Figure CN122280928A_ABST

Patent Text Reader

Abstract

This invention discloses an energy-saving arc-shaped top rock drilling rig, relating to the field of rock drilling equipment technology. It includes a rig body, a hydraulic system, a controller, and a rock drilling actuator. The hydraulic system is equipped with a three-stage filtration unit consisting of a coarse filter module, a fine filter module, and an ultrafine filter module. A contamination level sensor is arranged between the fine and ultrafine filters, and a first differential pressure sensor is installed at the inlet and outlet of the coarse filter module. The controller adjusts the hydraulic pump output parameters according to the contamination level and triggers an online backwashing unit connected in parallel with the coarse filter module based on the coarse filter differential pressure. The contaminated oil generated during backwashing is guided through a drain channel to a return oil filter and then returned to the hydraulic oil tank. A bypass protection circuit uses a second and a third differential pressure sensor to monitor the degree of blockage in the ultrafine filter module, controlling the opening of the bypass valve in stages and issuing a replacement alarm. This invention achieves intelligent purification and adaptive adjustment of the hydraulic system, improving the operational reliability and maintenance convenience of the rock drilling rig.

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