| As one of the important engineering equipment, hydraulic rock drill in areas suchas mining, highway, construction of engineering construction is indispensable. However,with the constant development of rock drill industry at the same time, domesticproduction of hydraulic rock drill is still in the low efficiency, part of the structure andshort service life of parts, no vibration in the working process of the unit vibrationcaused by large, low efficiency of energy transfer of small faults is increasinglyapparent, so need to design a high drilling efficiency, long service life, good vibrationdamping effect of hydraulic rock drill, to adapt to the new conditions of use.First of all, in this paper, the impact mechanism of hydraulic rock drill, slewingmechanism, dust removal device and a variety of different ways of oil supply isintroduced and compared, determine the design scheme of new type of hydraulicvibration hydraulic rock drill. According to the linear model of dynamic process ofimpact piston deduces the dynamic equation of impact piston and design agencies;MATLAB software is used to analyse the impact mechanism kinematics simulation,verify the impact mechanism meets the performance requirements. The next designslewing mechanism, drilling tools, and dust removal device, and the use of PRO/Esoftware for3d figure drawing.Then, using the theory of rock mechanics model and wave mechanics hydraulicrock drill bit tools is deduced a calculation formula of springback speed range.Designed a hydraulic damping device installed on the hydraulic rock drill inside thebody, the springback energy to absorb drilling, dynamic equation of vibration dampingdevice, and deduces the kinematics simulation using the MATLAB software, and toverify the rationality of the damping device.Hydraulic damping device can relieve thevibration of hydraulic rock drill, and the working life and drilling efficiency will beimproved.Finally, by using ANSYS software for new type of hydraulic vibration impactpiston of hydraulic rock drill, the body in finite element analysis, according to theanalysis results to improve the design, so as to improve the design of hydraulic rock drill. Through the above process, it can be efficient and effective structure of new typeof hydraulic vibration hydraulic rock drill is optimized, to improve the workingefficiency and working reliability, the design of similar hydraulic drilling products has acertain guiding role. |
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