輪椅減震裝置設(shè)計-減振裝置設(shè)計[含CAD高清圖紙和文檔全套]

【溫馨提示】 dwg后綴的文件為CAD圖，可編輯，無水印，高清圖，壓縮包內(nèi)文檔可直接點開預(yù)覽，需要原稿請自助充值下載，請見壓縮包內(nèi)的文件，所見才能所得，下載可得到【資源目錄】下的所有文件哦-有疑問可咨詢QQ:1304139763 或 414951605 摘要為改善輪椅在運行時受到來自路面的高頻激振，懸架中與彈性元件并聯(lián)安裝液壓減振器，其工作原理是當(dāng)輪椅和車輪間受振動出現(xiàn)相對運動時，減振器內(nèi)的活塞上下移動，減振器腔內(nèi)的油液便反復(fù)地從一個腔經(jīng)過不同的孔隙流入另一個腔內(nèi)。此時孔壁與油液間的摩擦和油液分子間的內(nèi)摩擦對振動形成阻尼力，使輪椅振動能量轉(zhuǎn)化為油液熱能，再由減振器吸收散發(fā)到大氣中。在油液通道截面和等因素不變時，阻尼力隨輪椅與車輪之間的相對運動速度增減，并與油液粘度有關(guān)。發(fā)展到今天減振器的結(jié)構(gòu)有了很大的改變，性能也有了極大的提高。通過對減振器的發(fā)展歷史和發(fā)展趨勢的深入了解，明確了設(shè)計該型減振器的重要性和意義，并設(shè)計了一種應(yīng)用于輪椅懸架的雙筒油壓減振器。本文研究的主要問題如下：（1）對雙筒式油壓減震器的結(jié)構(gòu)設(shè)計，結(jié)構(gòu)設(shè)計主要是確定減振器的類型、布置形式、安裝角度和選用數(shù)量，這是進(jìn)行尺寸設(shè)計的基礎(chǔ)。（2）對雙筒式油壓減震器的尺寸設(shè)計，尺寸設(shè)計的過程主要包括相對阻尼系數(shù)以及最大卸荷力的確定，減振器工作缸、活塞、活塞桿、閥系以及相關(guān)零部件的尺寸計算。（3）完成結(jié)構(gòu)設(shè)計與尺寸設(shè)計后應(yīng)對減振器的強度和穩(wěn)定性進(jìn)行校核，校核的結(jié)果應(yīng)符合國家相關(guān)技術(shù)標(biāo)準(zhǔn)。（4）對雙筒油壓減震器的結(jié)構(gòu)進(jìn)行優(yōu)化設(shè)計，這主要是連接件的比較和焊接工藝的優(yōu)化。本文的研究成果對減振器的進(jìn)一步研究有重要的理論和實際應(yīng)用意義，本文提出的優(yōu)化方案為實際的生產(chǎn)制造提供一定的理論依據(jù)。關(guān)鍵詞：油壓式； 減振器； 優(yōu)化；阻尼系數(shù)；工作缸ABSTRACTImprove wheelchair in motion by the high-frequency excitation from the road; it has a big change in the structure of the shock absorber until now. The performance also had big enhancement. Through the deep understanding of the history and tendency of the shock absorber, we make clear the importance and significance of the designing of the shock absorber, and design a kind of shock absorber which is applied to the suspension of the compact car. The main problems discussed in this paper are as follows:（1）The design to the structure of the gasification type shock absorber. It mainly determines the types of the shock absorber, layouts, the angle of installing and the quantity of selecting, these are the foundation of the designing of the sizes.（2）The design to the size of the gasification type shock absorber. It includes relative damping coefficient, the determination of the biggest discharge strength, and the computing of the sizes of work cylinder, piston, connecting rod, valve and related spare parts.（3）After completing the structural design and the designing of the sizes, the shock absorber intensity and the stability should be checked, the results should conform to the country related technical standards.（4）The optimization design to the structure of the gasification type shock absorber, which mainly concludes the comparison of connected pieces and optimization of the welding process. In this paper, the results of research has important theoretical and practical significance on the shock absorbers further study, the optimal scheme which put forward in this paper has provided the certain theoretical basis for the manufacturing of the reality production.Key words: Type；Shock Absorber；Optimization；Damping Factor；Work CylinderIV目錄摘要IAbstractII目錄III第1章 緒論11.1 選題的目的和意義11.2 減振器的發(fā)展歷史11.3雙筒式減振器國內(nèi)外發(fā)展?fàn)顩r和發(fā)展趨勢21.4 研究的主要內(nèi)容及方法4第2章 減振器的類型和工作原理52.1 減振器的類型52.2 減振器的工作原理52.3 雙筒式液壓減振器的工作原理及優(yōu)點62.4 本章小結(jié)7第3章 輪椅減振器示功特性分析83.1 建立模型83.1.1輪椅減震器的動力學(xué)模型83.1.2輪椅減震器示功圖測試模型83.2 輪椅減震器示功圖93.2.1簡化測試模型的示功圖93.2.2實測示功圖分析9第4章 雙筒式液壓減振器的設(shè)計124.1 雙筒式液壓減振器的設(shè)計參數(shù)124.2雙筒式減振器參數(shù)和尺寸的確定124.2.1液壓器工作缸直徑D的確定124.2.2雙筒式減震器活塞行程的確定134.2.3液壓缸壁厚、缸蓋、活塞桿和最小導(dǎo)向長度的計算144.2.4液壓缸的結(jié)構(gòu)設(shè)計214.2.5活塞及閥系的尺寸計算224.2.6密封元件和工作油液的確定254.2.7液壓缸的結(jié)構(gòu)設(shè)計214.3 本章小結(jié)27第5章 雙筒液壓減振器的結(jié)構(gòu)優(yōu)化285.1雙筒液壓減振器連接件的優(yōu)化285.2 雙筒液壓振器焊接方法的優(yōu)化305.3 本章小結(jié)31結(jié) 論32致 謝33參考文獻(xiàn)34