5噸液壓舉重機(jī)設(shè)計(jì) -液壓缸設(shè)計(jì)【含3張CAD圖紙+PDF圖】
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摘要
液壓缸是液壓系統(tǒng)執(zhí)行部分,它是一種壓力流體的機(jī)械能來實(shí)現(xiàn)直線往復(fù)運(yùn)動(dòng)或往復(fù)擺動(dòng)運(yùn)動(dòng)能量轉(zhuǎn)換設(shè)備。液壓缸根據(jù)其結(jié)構(gòu)形式,可以分為兩類,活塞式液壓缸和活塞式液壓缸?；钊揭簤焊?、活塞缸的出口壓力和流量,輸出的推力和進(jìn)度。
因?yàn)橹鳈C(jī)和主機(jī)的液壓缸機(jī)構(gòu)有直接的聯(lián)系,對(duì)于不同的主機(jī)和機(jī)構(gòu),不同的用途和工作條件的要求,液壓缸的類型和結(jié)構(gòu)是千變?nèi)f化的,沒有統(tǒng)一的規(guī)范,不象液壓泵和液壓閥已經(jīng)標(biāo)準(zhǔn)化了，因此必須根據(jù)實(shí)際需要自行設(shè)計(jì)。
液壓缸的設(shè)計(jì),液壓缸的基本原料是負(fù)載值,加載速度、中風(fēng)、液壓缸的結(jié)構(gòu)和安裝要求,液壓缸的設(shè)計(jì)計(jì)算主要是確定液壓缸的壓力和流量的使用,和液壓缸強(qiáng)度的組件檢查和性能檢查,等等。
液壓缸的設(shè)計(jì)步驟：
⑴. 根據(jù)液壓缸的工作特性,選擇液壓缸類型和安裝方法。
⑵. 根據(jù)動(dòng)力和運(yùn)動(dòng)分析，確定主要尺寸參數(shù)。
⑶. 設(shè)計(jì)主要零部件的結(jié)構(gòu)。
⑷. 液壓缸的性能計(jì)算。
液壓缸的設(shè)計(jì)和使用正確與否,直接影響其性能,沒有故障。在這方面,經(jīng)常遇到液壓缸安裝不當(dāng),活塞桿在部分負(fù)荷下,液壓缸或下垂活塞和活塞桿的壓桿不穩(wěn)定等等。在本設(shè)計(jì)中，充分考慮到了這些設(shè)計(jì)中應(yīng)該注意的問題，并且針對(duì)液壓缸兩端需要焊接絞座的問題，對(duì)金屬的可焊性進(jìn)行了分析。
關(guān)鍵詞：液壓舉重機(jī)；液壓缸；活塞桿
Abstract
The hydraulic pressure jar is an execution component in the hydraulic pressure system, It is one kind transforms the liquid Mechanical energy to realize the straight line reciprocating movment or pressure reciprocation oscillating motion energy conversion installment. Hydraulic pressure jar according to their structure form , can divide into piston jar and post fill in two kinds of jars. The piston jar and the plunger jar input for the pressure and the current capacity, outputs for the thrust force and the speed.
Because the hydraulic pressure jar has direct contacts with job organization on host computer and host computer, Regarding different main engine and organization, along with use and operating mode request difference, hydraulic jar type and structure ever changing, does not have the unification the specification, Did not like Hydraulic pump and hydraulic valve already standardized, therefore had independently to design according to the actual need. Designs the hydraulic jar the basic firsthand information is the hydraulic jar load value, the load velocity of movement, the stroke value, the hydraulic jar structural style and installs the request and so on, The hydraulic jar Mainly is to determine the design calculation hydraulic jar the working pressure and the current capacity, and carry on the intensity Check and hydraulic performance jar spare part checking computations and so on.
Design step of the hydraulic pressure jar:
(1)According to the operating mode characteristic of the hydraulic pressure jar, choose the type of the hydraulic pressure jar and installation way.
(2)Analyse according to dynamical and movement, confirm the main size parameter
(3)Design the structure of the main spare part
(4)The performance of the hydraulic pressure jar is calculated
The hydraulic jar design and the use is correct or not, directly affects its performance and easy otherwise to break down. In this respect, Meet hydraulic pressure jar install improper, cylinder rod is lean towards year to bear, hydraulic pressure jar or piston flagging and cylinder rod keep pole mistake question such as being steady often. In this design, have fully considered the Problems should be paid attention to these designs, and needs to weld in view of the hydraulic jar beginnings and ends twists the place the question, has carried on the analysis to the metal weldability.
Key words: Perform component; Firsthand information;
Design procedure
目 錄
第一章 引 言 1
1.1 國(guó)內(nèi)外的發(fā)展?fàn)顩r 1
1.2 液壓缸簡(jiǎn)介 4
第二章 設(shè)計(jì)計(jì)算 6
2.1液壓缸的初步設(shè)計(jì) 6
2.1.1液壓缸的工作壓力 6
2.1.2 初選缸筒內(nèi)徑及活塞桿直徑 7
2.2液壓缸主要技術(shù)性能參數(shù)的計(jì)算 8
2.3液壓缸的主要部件設(shè)計(jì) 8
2.3.1 缸筒的設(shè)計(jì) 8
2.3.2 活塞的設(shè)計(jì) 10
2.3.3 活塞桿的設(shè)計(jì) 11
2.3.4 端蓋上螺栓的校核 12
2.3.5 導(dǎo)向套的設(shè)計(jì) 14
2.3.6 缸筒底部厚度 15
2.3.7 密封圈的選用 15
2.3.8 開口銷的選用 16
第三章 金屬的可焊性 17
第四章 液壓缸的選用 18
4.1 液壓缸主要參數(shù)的確定 18
4.2 使用工況及安裝條件的確定 18
4.3 緩沖裝置的選用 18
4.4 密封件的選用 19
4.5 工作介質(zhì)的選用 19
結(jié) 論 20
參考文獻(xiàn) 21
致 謝 22
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