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Automatic rollback control system and method for rock drill

A technology of retreat control and rock drilling machine, which is applied to the automatic control system of drilling, earthwork drilling, mechanical equipment, etc. It can solve the problems of damaging the drill pipe and bit of the rock drilling machine, increasing construction costs, and air drilling of the rock drilling machine, etc., so as to prolong the service life , Guarantee the construction period and reduce the effect of labor intensity

Active Publication Date: 2017-05-31
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the rock drill advances to the top of the propulsion beam, the drilling work of the rock drill has ended. This will seriously damage the internal parts of the rock drill and drill pipes, drill bits and other components, which will affect the construction period and increase the construction cost; however, the current automatic retraction control system of the rock drill is cumbersome in design and complicated in operation, and there are many unreasonable things

Method used

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  • Automatic rollback control system and method for rock drill
  • Automatic rollback control system and method for rock drill
  • Automatic rollback control system and method for rock drill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one, see Figure 1~3 As shown, an automatic retreat control system for a rock drill includes an electrical system, a hydraulic control handle, a control valve block, a push cylinder, a pressure switch 1, an oil tank, and the control valve block and pressure switch 1 are respectively connected to the signal of the electrical system, and the control valve block It includes automatic retreat control valve group, hydraulic control proportional multi-way valve, relief valve, throttle valve and stroke control valve; the automatic retreat control valve group includes reversing solenoid valve group and pressure switch two; hydraulic control handle The oil circuit 1 of the hydraulic control handle is connected to the control oil circuit 1 of the hydraulic control proportional multi-way valve through the reversing solenoid valve group, and the oil circuit 2 of the hydraulic control handle is connected to the control oil circuit 2 of the hydraulic control proportional mu...

Embodiment 2

[0034] Embodiment 2, a rock drilling machine automatic retreat control method, implemented based on the rock drill automatic retreat control system described in Embodiment 1, the implementation process specifically includes the following content:

[0035] Step 1. Operate the hydraulic control handle, push the propulsion cylinder through the hydraulic control proportional multi-way valve, and the rock drill advances to the top of the propulsion beam;

[0036] Step 2. When the rock drill travels to the top of the propulsion beam, trigger the stroke control valve to change direction;

[0037] Step 3. Obtain a pressure signal from the pressure switch and compare it with the preset pressure until the preset pressure is met, control the hydraulic control handle to return to the neutral state, and trigger the reversing solenoid valve group to be energized to make it change direction. The oil cylinder controls the rock drill to enter the automatic retreat state;

[0038] Step 4. Dete...

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Abstract

The invention relates to an automatic rollback control system and method for a rock drill. The system comprises an electrical system, a hydraulic control handle, a control valve block, a pushing oil cylinder, a first pressure switch and an oil tank, and the control valve block comprises an automatic rollback control valve group, a hydraulic-control proportional multiway valve, an overflow valve, a throttle valve and a travel control valve; the automatic rollback control valve group comprises a reversing solenoid valve group and a second pressure switch; when the rock drill moves to the top end of a push beam, a stroke valve is touched, the pressure switches act and send out signals, the rock drill stops drilling automatically and retreats to a specified location, and in the retreating process, if the rock drill needs to move forwards, a person only needs to operate the handle again. Accordingly, the phenomena that when the rock drill drills into the top end of the push beam, the push beam is damaged, and the rock drill idles can be avoided, it can be guaranteed that the rock drill is in a controllable state in the automatic retreating process, operation is convenient, use is safe and reliable, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of hydraulic control of rock drills, and relates to a rock drill automatic retreat control system and a control method thereof, which can avoid the damage of the propulsion beam and the rock drill empty strike phenomenon caused by the rock drill drilling to the top of the propulsion beam, and at the same time ensure that the rock drill is automatically retracted. in an operational state. Background technique [0002] At present, rock drilling rigs are widely used in bolting, blast holes, geological forecasting, etc., and the control system of rock drilling rigs is also developing in the direction of intelligence, humanization and automation. When the rock drill advances to the top of the propulsion beam, the drilling work of the rock drill has ended. This will seriously damage the internal accessories of the rock drill, drill pipes, drill bits and other components, which will affect the construction period ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B44/00F15B13/044
CPCE21B44/00F15B13/044
Inventor 李光朋李皓楠黄剑王占辉
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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