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Hydraulic control system for anti-jamming of rock drill

A hydraulic control system and technology for rock drills, which are applied to mechanical equipment, reciprocating drilling rigs, fluid pressure actuating devices, etc. Good performance and versatility

Active Publication Date: 2017-04-12
JINCHUAN GROUP LIMITED +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Although the anti-jamming technology of DCS-12 is relatively advanced and its use is more effective, its open multi-way valve operation, constant pressure pump depressurization control impact and propulsion, high energy consumption, complex structure of anti-jamming valve group, Disadvantages such as low degree of standardization

Method used

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  • Hydraulic control system for anti-jamming of rock drill
  • Hydraulic control system for anti-jamming of rock drill

Examples

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Embodiment Construction

[0026] like figure 2 As shown, an anti-jamming hydraulic control system of a rock drill includes a variable pump 01 controlled by LS, a rock drilling impact valve block 10, a propulsion control valve group 20, a propulsion pressure regulating valve block 30, an anti-jamming valve block 40 and a pilot handle Control valve group 50 .

[0027]The outlet of the variable pump 01 is connected to the oil inlet port of the propulsion control valve group 20 and the pressure reducing valve 13 in the rock drilling impact valve block 10. The output of the pressure reducing valve is used as the pilot control oil source Pc of the pilot handle to control the weight of the rock drill. After the pilot oil of the impact handle is controlled by the hydraulic directional valve 41 of the anti-jamming valve block 40, it is connected to both ends of the shuttle valve 15 of the rock drilling impact valve block 10 together with the pilot oil of the light impact control handle. The output of the rock...

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PUM

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Abstract

The invention provides a hydraulic control system of an anti-clamping drill rod of a rock drilling machine. The hydraulic control system comprises an LS (Load Sensor) control variable pump, a rock drilling impact valve block, a propelling control valve set, a propelling pressure regulating valve block, an anti-clamping drill rod valve block and a pilot handle control valve set. When a rotary pressure of the rock drilling machine is raised, the hydraulic control system has the functions that the pressure of a propelling oil cylinder of the rock drilling machine is automatically reduced, the propelling is stopped and the rock drilling machine is automatically returned to the outside, and the impact is automatically stopped when the rock drilling machine is returned; compared with the prior art, a control function is the most complete. The control system adopts an LS control function of the variable pump and has the characteristics of good automatic control performance, strong commonality of hydraulic elements, energy saving and high efficiency.

Description

technical field [0001] The invention relates to a hydraulic control system, in particular to a hydraulic control system of a rock drill, which can realize continuous adjustment between light and heavy impact power of the rock drill. Background technique [0002] Rock drills play a pivotal role in the rock construction equipment of construction machinery. They are the main rock drilling machinery. Hydraulic rock drills occupy the leading position in rock drills due to their fast rock drilling speed, high power, high efficiency and low pollution. Hydraulic rock drills Widely used in underground mining and roadway excavation of black and non-ferrous mines, excavation of railway and highway tunnels and even urban subways, coal mines and military engineering construction and other occasions. [0003] Generally, hydraulic rock drills need to be equipped with drill rods, drill bits and coupling sleeves. The drill bits are used to break rocks and drill holes. When working, the drill...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B1/26F15B11/16
Inventor 杨志强甘立恒钱鸣王艳桢王红列张文军王建文李萍奎孙敦振
Owner JINCHUAN GROUP LIMITED
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