棘輪型手動壓力機的設計

論文編號:JX1625  論文字數:11911.頁數:33 附任務書，開題報告，外文翻譯,CAD圖

棘輪型手動壓機設計
            
摘要: 本課題是棘輪手動壓力機的設計，針對機械裝置工作條件，設計符合實際工作要求的壓力機。壓力機的設計包括齒輪軸、齒條、箱體的設計和一些零部件的選用校核等。在設計過程中，根據任務書提供的壓力機的長度、寬度、高度、行程等要求，完成壓力機的總體設計。其中主要以人力為主，通過齒輪帶動齒條運動，用棘輪實現自鎖，用手輪回復齒條，其中主要設計了各個系統傳動的零部件，結構比較簡單，屬于典型的手動壓力機
對壓力機進行受力分析，完成齒輪的設計。由于壓力機的機身結構緊湊，齒輪與軸連成一體，做成齒輪軸結構。在齒輪軸設計時候，完成選用軸承、擬定軸上的零件的裝配方案、校核軸的強度要求等工作。完成齒輪軸結構的的設計后，就可以進一步確定與其嚙合的齒條的尺寸，并設計齒條的工藝規程。齒條的工藝規程設計有兩種方案，比較兩種方案的優劣，選擇合適的一種。軸承對壓力機的工作發揮著重要的作用，應該校核其強度，設計其密封裝置等。在以上各項工作完成后，可以設計壓力機機身（箱體）的設計和軸承端蓋的設計。最后，還應進行成本校核，成本核算的實質是一種數據信息處理加工的轉換過程，即將日常已發生的各種資金的耗費，按一定方法和程序，按照已經確定的成本核算對象或使用范圍進行費用的匯集和分配的過程。成本校核的目的是為了在滿足機械工作要求和加工精度的基礎上，設計出最經濟廉價產品。
關鍵詞: 壓力機  棘輪機構  成本校核

Ratchet-type manual press design
 Abstract: This issue is to manually press ratchet design, working conditions for mechanical devices, designed to meet actual work requirements presses. Press design includes gear shaft, rack, cabinet design and some components such as the selection of check. In the design process, according to the press the mission statement to provide the length, width, height, stroke, etc., to complete the overall design of the press. Mainly to human-based, driven by gear rack movement, with the ratchet to achieve self-locking hand wheel back rack, which drive the main design components of each system, relatively simple structure, typical of the hand press The force analysis on the press to complete the design of gears. As the compact body presses, gear and shaft fused, causing the gear shaft structure. When the gear shaft to complete the bearing selection, shaft developed parts of the assembly program, checking the work of shaft strength requirements. Completed the design of the structure of the gear shaft, you can further define the size of its meshing of rack and rack of the process design rules. Rack of process planning, there are two options, compare the pros and cons of two options, choose the right one. Bearing on the press played an important role in the work, should check its strength, the design of its sealing devices. In the above work is completed, can be designed to press frame (box) design and the design of bearing end caps. Finally, the cost should be checked, the real cost accounting information processing is a data processing conversion process about to occur daily all funds have been spent, according to certain methods and procedures have been established in accordance with the object or the use of cost accounting range costs of collection and distribution process. The purpose of the cost of checking is in order to meet the job requirements and precision machinery, based on the most economical design of cheap products. Key words: forcing press   Ratchet institutions  check the cost
 
 
 目    錄
1  引言
1 課題研究的目的和意義 1
2  手動壓力機的設計
2.1總體方案的確定 2
2.2 齒輪的設計 2
2.2.1齒輪材料及精度的選擇 2
2.2.2齒輪的設計計算 3
2.2.3齒輪的校核 4
2.2.4齒輪的幾何尺寸計算 7
2.3 齒輪軸的設計 8
2.3.1齒輪軸材料的選擇 8
2.3.2確定齒輪軸的最小直徑 9
2.3.3齒輪軸上零件的裝配方式 11
2.3.4齒輪軸的校核 11
2.3.5齒輪軸的零件圖 14
3 滾動軸承的選擇 14
3.1滾動軸承類型的選擇 14
3.2滾動軸承的配置 14
3.3滾動軸承的潤滑 15
3.4滾動軸承的密封裝置 16
3.5 鍵的選擇 16
3.5.1鍵的尺寸型號 17
3.6 棘輪機構的設計 18
3.6.1棘輪的基本結構和工作原理 18
3.6.2棘輪裝置的優缺點 18
3.6.3棘輪機構中的主要問題 19
3.6.4棘輪幾何尺寸的計算 19
3.6.5棘輪的零件圖 20
 3.7 手輪和手柄的設計 20
3.7.1手輪和手柄的材料選擇 20
3.7.2手柄長度的設定 20
3.7.3手柄直徑的確定 20
3.8 齒條的設計 21
3.8.1零件的特點及材料的選擇 21
3.8.2齒條參數的設定 21
3.8.3齒條基本尺寸的設定 22
3.9 箱體的設計 22
3.9.1零件的特點及材料的選擇 22
3.9.2箱體的結構設計 22
4 箱體的工藝規程設計 25
4.1設計任務 26
4.2零件工藝性分析 26
4.3毛胚的選擇 27
4.4擬訂零件加工工藝路線 28
 4.5制定零件工藝規程 29
4.6 壓力機的成本核算 30
 4.6.1制定零件工藝規程 29
4.6.2 壓力機的成本核算 30
5結論 31
參考文獻 32
致謝 33