煤层液压钻机自动分度机构的研究

发布时间：2018-12-16 04:25

【摘要】：针对井下液压钻机角度调节不便的问题,调研了锚杆钻机、架柱式液压钻机、全液压坑道钻机、履带式液压钻机的功能和结构,重点分析了以上四种钻机的角度调节装置。选定座架式液压坑道钻机为研究对象,针对其结构特点开展了分度机构的探讨和设计,经过对比几种传统标准件的分度功能,选定行星轮式旋转装置作为分度机构,该分度机构由行星轮系与转向台装配而成。以ZDY2300S型坑道液压钻机为参考,建立了分度机构的数学模型,计算出了行星轮式旋转装置的受力载荷,按照齿根弯曲疲劳强度设计准则,设计出了太阳轮、行星轮和内齿轮的尺寸。之后,设计了与行星轮系结构相匹配的转向器,转向器主要包括连接板和转向台两个部分,连接板是ZDY2300S型钻机给进装置与行星轮旋转装置的连接部件,转向台是连接板的重力承载件和功能实现载体。在分度机构设计完成之后,设计了与之相配套的剪叉式液压升降平台和固定部件。以2000kg最小载重,计算出了升降平台液压缸的各项尺寸,完成了液压缸的结构设计。参考座架式钻机现有的固定方式,设计了相应的固定部件,包括横柱、分度圆轨和抱箍等连接件。对所设计分度机构、剪叉式升降平台和固定部件进行了结构的线性静力学分析,对行星轮系和机架装配体进行了模态分析,对太阳轮和行星轮的啮合进行了瞬态动力学分析。通过有限元分析得出了相应结构的整体位移、等效应力等云图,根据分析结果判定结构的强度、刚度和稳定性满足设计要求。最后采用ANSYS workbench响应面优化模块对转向器和液压升降平台进行了尺寸优化设计,并对转向台进行了结构的拓扑优化,实现了轻量化设计。
[Abstract]:Aiming at the inconvenient angle adjustment of downhole hydraulic drilling rig, this paper investigates the function and structure of the anchor drill, the frame hydraulic drill, the full hydraulic tunnel drill and the crawler hydraulic drill, and emphatically analyzes the angle adjusting devices of the above four kinds of drilling machines. Based on the structural characteristics of the hydraulic tunnel drilling rig, the indexing mechanism is discussed and designed. After comparing the indexing functions of several traditional standard parts, the planetary wheel rotary device is selected as the indexing mechanism. The indexing mechanism is composed of planetary gear train and steering platform. The mathematical model of the indexing mechanism is established with the reference of ZDY2300S hydraulic drilling rig. The load of the planetary wheel rotating device is calculated. According to the design criterion of the tooth root bending fatigue strength, the sun wheel is designed. Dimensions of planetary gears and inner gears. After that, the steering gear matching the structure of the planetary gear train is designed. The steering gear consists of two parts: the connecting plate and the steering table. The connecting plate is the connecting part between the feeding device of the ZDY2300S drilling rig and the planetary wheel rotating device. The steering platform is the gravity bearing part of the connecting plate and the functional carrier. After the design of the indexing mechanism is completed, the shear-fork hydraulic lifting platform and the fixed parts are designed. Based on the minimum load of 2000kg, the dimensions of the hydraulic cylinder of the lifting platform are calculated, and the structural design of the hydraulic cylinder is completed. With reference to the existing fixing methods of the pedestal rig, the corresponding fixing parts are designed, including the transverse column, the indexing circular rail and the clamping joint. The linear statics analysis of the designed indexing mechanism, the shear fork lifting platform and the fixed parts, the modal analysis of the planetary gear train and the assembly of the frame, and the transient dynamic analysis of the meshing of the solar wheel and the planetary wheel are carried out. The whole displacement, equivalent stress and other cloud diagrams of the corresponding structure are obtained by finite element analysis. The strength, stiffness and stability of the structure are determined according to the analysis results to meet the design requirements. Finally, the ANSYS workbench response surface optimization module is used to optimize the size of the steering gear and the hydraulic lift platform, and the structure topology of the steering platform is optimized to realize the lightweight design.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD421

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