Creation method for simulation model of anti-jamming hydraulic control system of rocker driller

Abstract

The invention discloses a creation method for a simulation model of an anti-jamming hydraulic control system of a rocker driller, comprising the following steps of: firstly, setting an analogue load input value of a feed mechanism and an analogue input value of a slewing mechanism to cause the feed mechanism and the slewing mechanism to work in a normal state, and to cause feed pressure to stabilize at 8MPA and slewing pressure to stabilize at 12MPA; inputting a process that the feed pressure is reduced from a normal value into the analogue load of the feed mechanism to carry out cave jammed drilling simulation, wherein when the feed pressure is reduced to a setting value of a pressure relay signal of a feeding loop, an electromagnetic reversing valve acts, a multi-way valve changes direction to push a motor to slew, and the feed mechanism retreats; observing whether the anti-jamming hydraulic control system is capable of preventing cave jammed drilling; and inputting a process that the slewing pressure is increased slowly from a normal value into the analogue load of the slewing mechanism to carry out simulated slow varying jammed drilling. The method disclosed by the invention has the beneficial effects that the method is conductive to solving the problem of jammed drilling, ensures normal drilling work of the rock driller, and is conductive to prolonging service life and assisting driller stressing.

Description

technical field [0001] The invention relates to the field of hydraulic technology, in particular to a method for establishing a simulation model of a rock drilling machine anti-jamming hydraulic control system. Background technique [0002] The hydraulic system has the advantages of large power, good adjustability of working pressure and flow, and heat can be brought back to the oil tank. The hydraulic system device can generate more power than other devices. Under the same power, the hydraulic device is small in size, Light weight, high power density, compact structure. The down-the-hole drilling rig is a kind of engineering machinery for drilling minerals and rocks. It is a device in which the impactor dives into the hole and directly impacts the drill bit, and the rotary mechanism drives the drill pipe to rotate outside the hole to drill into the rock. It is mainly used for open-pit mining, Rock drilling in various projects such as building foundations, water conservancy...

AI Technical Summary

Problems solved by technology

However, the existing hydraulic system components have many problems from different perspectives such as operation methods, working methods, and complicated structures, which lead to inefficient work, heavy equipment weight, and high costs