本文選題：礦車 + 跑車　； 參考：《遼寧工程技術大學》2015年碩士論文

【摘要】：礦車是煤礦運輸?shù)闹匾ぞ咧�。由于工作環(huán)境惡劣,負載大、使用頻率高,牽引機構間存在較大的磨損,使各部件在工作時容易出現(xiàn)失效,經(jīng)常發(fā)生跑車事故。如果出現(xiàn)斷繩跑車,很可能出現(xiàn)設備的損壞,運輸中斷,以及經(jīng)濟損失,嚴重時還會出現(xiàn)人員的傷亡。為了提升煤礦井下運輸?shù)陌踩?應根據(jù)井下運輸?shù)奶攸c設計出一種新型的跑車防護裝置。與傳統(tǒng)防護裝置相比,新型裝置應具有動作靈敏、制動時間短、制動可靠等特性。本文基于礦車跑車前后兩種狀態(tài)速度的明顯變化,制定出了三種可行的阻車裝置方案。并運用模糊綜合評判的方法對三種方案的經(jīng)濟性、勞動保護性、可靠性、功能性進行評價,最終確定方案一為最優(yōu)方案。根據(jù)MGC3.3-9型礦車的實際尺寸對方案一進行了系統(tǒng)的設計,計算得到了各部件尺寸通過運用ANSYS Workbench仿真軟件,得到了制動爪與枕木瞬態(tài)沖擊過程中制動爪各危險部位的有效應力與碰撞時間的關系,根據(jù)這些關系對制動爪尖進行了優(yōu)化；得到了制動爪與枕木接觸過程中各危險部位所受靜應力與接觸時間的關系、部件變形量與接觸時間的關系,并根據(jù)這些曲線和云圖對整個制動裝置進行了優(yōu)化。通過運用ADAMS仿真軟件,分別得到了礦車發(fā)生跑車后車輪轉(zhuǎn)速的變化、制動機構復位彈簧受力、超速感應機構感應彈簧受力、制動爪位移量與跑車時間的關系,通過這些變量關系對裝置結構進行了驗證與校核。通過以上仿真分析,結果表明,本文所設計機械式阻車裝置設計合理、制動時間小于0..4s,具有故障排除后的自復位功能,及即時抓捕功能,能較好的保護發(fā)生跑車事故的礦車,對提升煤礦運輸?shù)陌踩跃哂兄卮笠饬x。
[Abstract]:The car is one of the important tools for coal transportation. Due to poor working conditions, large load, high frequency of use, there is a big wear traction mechanism, make the parts easy to appear in the work of failure, frequent car accidents. If the broken rope car is likely to damage the equipment, transportation interruption and economic losses and there will be serious casualties. In order to enhance the safety of coal mine transportation, according to the design characteristics of underground transportation in a protective device. Compared with the traditional protective device, new device should have quick action, short braking time, braking and reliable. The obvious change of two kinds of velocity the mine car and based on the developed three kinds of feasible solutions. The car blocking device and using the method of fuzzy comprehensive evaluation of the economy of the three schemes, labor protection, reliability, function To evaluate the final solution for the optimal solution. According to the actual size of the car type MGC3.3-9 scheme for the system design, calculate the size of the components by using ANSYS Workbench simulation software, the relationship between effective stress and the collision time pawl brake claw and the dangerous areas in the process of transient sleepers according to these relationships, to optimize the brake tip; the dangerous part of the brake claw and the sleeper contact process of the static relationship between the stress and the contact time of the component relation between deformation and contact time, and according to the curves and contours of the whole braking device is optimized. By using ADAMS software, respectively. The change of the wheel speed after tramcar's braking mechanism, reset spring force, speed sensor mechanism induction spring force, and the amount of car brake claw displacement The relationship between these variables through the relationship of device structure is verified and validated. Through simulation analysis, the results show that the designed mechanical vehicle retarding device design is reasonable, the braking time is less than 0..4s, with self reset function after troubleshooting, and instant capture function, can better protect the sport car accident car, which is of great significance to enhance the safety of coal transportation.

【學位授予單位】：遼寧工程技術大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD553

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