一車多載式巖石劈裂機設計研究
本文選題:巖石劈裂機 + 自動定位 ; 參考:《青島科技大學》2017年碩士論文
【摘要】:劈裂機是由劈裂槍和動力站兩個主要部件組成的用來劈裂、開采巖石的礦山機械設備。最近幾年國內(nèi)外劈裂機發(fā)展很迅速,已經(jīng)投入使用的劈裂機主要是液壓式劈裂機和氣壓式劈裂機兩種。目前,國內(nèi)在劈裂機的應用上存在很多不足之處,大部分礦區(qū)都還沒有實現(xiàn)自動化開采,為了降低成本,多采用價格低廉的風鉆結合鐵錘打擊鉗子的方式進行開采,在開采過程中非常不安全。近年來,隨著我國勞動力成本一路飆漲,礦區(qū)沒法承受因勞動力成本增加而導致的利潤嚴重下滑,因此礦區(qū)急需高效、自動化的巖石開采設備以降低勞動力成本。為解決上述問題,本文著力于研究巖石自動化開采方法,設計出一款用于高效開采巖石的一車多載式巖石劈裂機,論文主要研究內(nèi)容如下:(1)針對國內(nèi)某礦區(qū)目前開采巖石的步驟與方法,初步確定了一車多載式巖石劈裂機的功能,然后根據(jù)一車多載式巖石劈裂機要實現(xiàn)的功能,反向進行了設計。根據(jù)總機要實現(xiàn)的功能,把各個功能再分配給各個機構來實現(xiàn),根據(jù)功能反推機構的結構與運動學軌跡,逐步對總體完成了設計。(2)論文為了更好的設計劈裂機,對巖石力學進行了學習,并且認真的研究了氣動式劈裂機的巖石劈裂機理,清楚的了解巖石和劈裂機之間的相互作用力關系,從根本上確保了對劈裂機的受力情況非常清楚、透徹,使設計出的機構更加合理。(3)根據(jù)對整機的把握,論文把一車多載式巖石劈裂機分成了:防側翻的車架系統(tǒng)、劈裂機的自動定位機構、劈裂機的間距自動調節(jié)機構、劈裂機總機的設計四個大的獨立機構,分別進行了具體的設計研究;針對每個獨立的機構,從這個機構的特點以及要實現(xiàn)的功能,然后從原理到結構進行具體的設計計算,并對每個機構提出了多個方案,經(jīng)過對比分析,最終確定一個最合適的結構,最后再對結構進行了有限元分析,包括受力情況,結構變形情況等,最終設計出一個合理的獨立機構。(4)論文整體上先對四個獨立的機構按照從下往上的步驟進行了單獨設計,最后給出了整機的三維結構,并且對每個獨立機構分別進行了裝配演示,使得整個論文看起來更加完整。文中經(jīng)過對四個單獨機構的設計,得到了能夠防止發(fā)生側翻的車架系統(tǒng),實現(xiàn)了多套劈裂機的自動定位功能,同時單套劈裂機之間還實現(xiàn)了間距的自動調節(jié)功能,以及劈裂機的自動進給功能,實現(xiàn)了劈裂機的自動化目標。
[Abstract]:Splitting machine is a mining machine which consists of split gun and power station, which is used to split and mine rock.In recent years, domestic and foreign splitters have developed very rapidly. The split machines that have been put into use are mainly hydraulic splitters and pneumatic split machines.At present, there are many deficiencies in the application of splitting machine in our country. Most mining areas have not realized automatic mining. In order to reduce the cost, the low cost pneumatic drill combined with hammer hammer pincers is used for mining.It is very unsafe in the process of mining.In recent years, with the rapid increase of labor cost in China, the mining area can not afford the serious decline of profits caused by the increase of labor cost, so the mining area urgently needs efficient and automatic rock mining equipment to reduce the labor cost.In order to solve the above problems, this paper studies the method of rock automatic mining, and designs a kind of multi-load rock splitting machine which can be used in high-efficiency rock mining.The main contents of this paper are as follows: (1) in view of the steps and methods of mining rock in a certain mining area in China, the functions of a load of multi-load rock splitting machine are preliminarily determined, and then according to the functions realized by a cart of multi-load rock splitting machine,The reverse design is carried out.According to the functions to be realized by the switchboard, each function is redistributed to each mechanism to realize it. According to the structure and kinematics track of the functional backstepping mechanism, the overall design of the split machine is completed step by step.) in order to better design the splitting machine,The rock mechanics is studied, and the rock splitting mechanism of pneumatic splitting machine is studied, and the interaction between rock and splitting machine is clearly understood, which ensures that the force of splitting machine is very clear.Thoroughly, the designed mechanism is more reasonable. (3) according to the grasp of the whole machine, the paper divides the multi-load rock splitting machine into four parts: the anti-rollover frame system, the automatic positioning mechanism of the splitting machine, the automatic adjusting mechanism of the split machine spacing,The design of split machine switchboard four large independent mechanisms, respectively, carried out specific design research; for each independent mechanism, from the characteristics of this mechanism and the functions to be realized, then from the principle to the structure of the specific design calculation,And put forward a number of schemes for each mechanism, through comparative analysis, finally determine the most suitable structure, and finally the finite element analysis of the structure, including the force, deformation, etc.Finally, a reasonable independent mechanism is designed. (4) in the whole paper, the four independent mechanisms are designed separately according to the step from bottom to top. Finally, the three-dimensional structure of the whole machine is given.The assembly demonstration of each independent mechanism makes the whole paper look more complete.Through the design of four separate mechanisms, the frame system which can prevent the rollover is obtained, and the automatic positioning function of multiple splitting machines is realized. At the same time, the automatic adjustment function of the distance between the single splitting machines is also realized.And the automatic feed function of splitting machine, realize the automatic goal of splitting machine.
【學位授予單位】:青島科技大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TD402
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