Improved design of the KG series hydraulic rock drill, hydraulic rock drill YYG50 design and underground industrial test results were analyzed and put forward measures designed to improve in the future. Rail YYG50 hydraulic rock drill Coal Research Institute, Shanghai Branch, Yanzhou Mining (Group) Co., Ltd. jointly developed Beisu coal project for the JZZ-50 type hydraulic rock drill unit. The hydraulic boring machine with the host after downhole assembly, commissioning, after 3 consecutive months of industrial test in Beisu coal, exposed a number of shortcomings in the design and manufacture of the need to improve to improve. Hydraulic rock drill impact mechanism Hydraulic rock drill YYG50 rail sets of valve impact mechanism, mainly by the front cylinder, rear cylinder, with oil cylinder with valve, shock piston, cylinder and seals, etc.. Hydraulic rock drill process, the impact of the piston high frequency reciprocating impact by alternating stress, piston Reducing stress concentration at the inappropriate choice of the impact of the piston material and heat treatment process, likely to cause the piston flaking or fatigue fracture. Therefore YYG50 hydraulic rock drill impact the piston high strength, high toughness, impact-resistant alloy steel, heat treatment using carbonitriding, thickness of 0.6 to 0.8 mm, quenching hardness of 58 ~ 62HRC, magnetic flaw detection to ensure that parts are not micro-cracks, after 3 months of industrial test, there is no replacement shock piston.Zhengzhou Dayu Machinery Co., Ltd. is a leading mining machinery supplier in China, Business scope:All Pneumatic Mining Crawler Drilling Rigs,Hydraulic Mining Crawler Mining Drilling Rigs, High Wind Pressure Mining Drill Rig, Integrated Mining Crawler Drilling Rigs,Down Hole Mining Drilling Machine, Crawler Water Well Drilling Rigs,Truck Mounted Water Well Drilling Rigs so on. Click Here to Read More: http://www.dydrillingrig.com/products.html;http://www.dydrillingrig.com/products/hydraulic-drilling-rigs/high-wind-pressure-mining-drill-rig-dy130.html;http://www.dydrillingrig.comlTechnical Parameters of Hydraulic Drilling Rigs ( KG Series ) ModelKG910BKG920AKG920BKG930AKG940ARock hardnessF=6-20Diameter of holeΦ80-105 mmΦ80-115 mmΦ80-115 mmΦ80-125 mmΦ105-152 mmOptimum drilling depth25 mWorking pressure0.7-1.0 MPa1.0-1.7 MPa1.0-1.7 MPa1.0-2.4 MPa1.0-2.4 MPaAir consumption9-13 m3/min9-16 m3/min9-16 m3/min9-18 m3/min12-24 m3/minRotary speed120 r/min107 r/min107 r/min120 r/min100 r/minRotary torque980 N.m1400 N.m1400 N.m2000 N.m2800 N.mLift power15000 N15000 N15000 N17000 N22000 NClimb ability30°Main WinchL.36.5°; R.11.5°L.100°; R.45°L.100°; R.45°L.100°; R.45°L.95°; R.50°Effective Height of Mast900 mm900 mm900 mm1200 mm1200 mmDrill rodΦ60Φ60Φ60Φ76Φ76/Φ89Weight3300 kg4000 kg4200 kg6000 kg6500 kgDimension (mm)4100*2030*20204400*2200*20504400*2200*20505355*2215*23655355*2330*2365
hydraulic drilling rig Of the large number of small and medium-sized mining and general construction is still commonly used in high energy consumption, low efficiency of rock breaking, wearing parts,
The hydraulic drilling rig rock machine works with high-pressure oil powered piston shock Qianzai, with independent a rotating mechanism Zaoyanjixie of. (Also whether the drill rig valve is controlled
Hydraulic water well truck rock drill impact reciprocating piston in the high-frequency, high-speed conditions, the seal is not good, not only will cause a sharp drop in impact energy, will lead
manufacturing quality is difficult to guarantee: high-frequency impact of hydraulic rock drill is achieved through the internal oil distribution valve to change into the oil before and after the
manufacturing quality is difficult to guarantee: high-frequency impact of hydraulic rock drill is achieved through the internal oil distribution valve to change into the oil before and after the
The by underground industrial test, Reference YYG50 hydraulic rock drill design is reasonable, compared with the existingdomestic boring machine, its small size, moderate weight and other characterist
The lightweight hydraulic drilling rigs rock drill, rock drill rig machines are widely used construction machinery for mining, construction, engineering, construction and other fields. Although the
In fact, not only is required for different rock drill three screw tightening torque, even if it is the same rock drill three long screw tightening torque required will also vary with the time ch
the sealing effect with the size of the gap, pressure difference between the mating surfaces of the length, diameter, size and boring machine processing quality factors, in order to achieve the d
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