?液壓缸結(jié)構(gòu)設(shè)計(jì) 典型結(jié)構(gòu):缸體組件、活塞組件、密封件、連接件、緩沖裝置、排氣裝置等 設(shè)計(jì)依據(jù):缸工作壓力、運(yùn)動(dòng)速度、工作條件、加工工藝及拆裝檢修等 缸體與端蓋的結(jié)構(gòu)設(shè)計(jì) 缸體與端蓋的連接: 法蘭連接 半環(huán)連接 螺紋連接 拉桿連接 焊接連接 缸體與端蓋的連接 ∵工作壓力、缸體材料、工作條件不同 ∴有許多低壓連接形式,鑄鐵缸體,大尺寸 連接形式的缸體和端蓋 法蘭連接:高壓,需焊接法蘭盤,較雜。
半環(huán)連接:內(nèi)半環(huán)—結(jié)構(gòu)簡單、緊湊、裝卸方便(但因缸體上開了環(huán)行槽,強(qiáng)度削弱);外半環(huán) 螺紋連接:內(nèi)螺紋重量輕,外徑小,但端部復(fù)雜,外螺紋裝卸不便,需專用工具 焊接連接 拉桿連接通用性好,缸體加工方便,裝拆方便,但端蓋體積大,重量也大,拉桿受力后會(huì)拉伸變形,影響端部密封效果,只適于低壓. 活塞和活塞桿的連接 ∵工作壓力、安裝方式、工作條件的不同。
∴活塞組件有多種結(jié)構(gòu)形式 整體式:常用于小直徑液壓缸,結(jié)構(gòu)簡單,軸向尺寸緊湊,但損壞后需整體更換 活塞和活塞桿的連接 焊接式:同上 錐銷式:常用于雙桿缸,加工容易,裝配簡單,但承載能力小,且需防止脫落 螺紋式:常用于單桿缸,結(jié)構(gòu)簡單,裝拆方便,但需防止螺母松動(dòng)。
半環(huán)式:常用于高壓大負(fù)載或振動(dòng)比較大的場(chǎng)合,強(qiáng)度高,但結(jié)構(gòu)復(fù)雜,裝拆方便 活塞桿頭部結(jié)構(gòu) 活塞桿:是連接活塞和工作部件的傳力零件,必須具有足?夠的強(qiáng)度和剛度,一般用鋼料制成,且需鍍鉻 液壓缸的緩沖裝置 緩沖的必要性 ∵在質(zhì)量較大、速度較高(v>12m/min),由于慣性力較大,活塞運(yùn)動(dòng)到終端時(shí)會(huì)撞擊缸蓋,產(chǎn)生沖擊和噪聲,嚴(yán)重影響加工精度,甚至使液壓缸損壞。
∴常在大型、高速、或高精度液壓缸中設(shè)置緩沖裝置或在系統(tǒng)中設(shè)置緩沖回路 緩沖原理:利用節(jié)流方法在液壓缸的回油腔產(chǎn)生阻力,減小速度,避免撞擊 緩沖裝置類型 (1)圓柱形環(huán)隙緩沖裝置 (2)圓錐形環(huán)隙緩沖裝置 (3)可變節(jié)流槽式緩沖裝置 (4)可調(diào)流孔緩沖裝置 液壓缸的排氣裝置 排氣的必要性 ∵系統(tǒng)在安裝或停止工作后常會(huì)滲入空氣 ∴使液壓缸產(chǎn)生爬行、振動(dòng)和前沖,換向精度降低等。
故?必須設(shè)置排氣裝置 排氣方法 1排氣孔油口設(shè)置在液壓缸最高處 2排氣塞象螺釘(如暖氣包上的放氣閥) 3排氣閥使液壓缸兩腔經(jīng)該閥與油?箱相通啟動(dòng)時(shí),擰開排氣閥使液壓缸空載往復(fù)運(yùn)動(dòng)幾次即可 90-L-075-KN-1-AB-80-R-3-S1-E-03-GBA-29-29-24 90L075KN1AB80R3S1E03GBA292924 90-L-075-KN-1-AB-80-R-4-S1-D-03-GBA-38-38-24 90L075KN1AB80R4S1D03GBA383824 90L075-KN-1-BC-60-R-3-C7-E-03-GBA-32-14-32 90L075KN1BC60R3C7E03GBA321432 90-L-075-KN-1-BC-60-R-3-C7-E-03-GBA-32-14-32 90L075KN1BC60R3C7E03GBA321432 90-L-075-KN-1-BC-60-R-3-S1-D-03-GBA-32-32-24 90L075KN1BC60R3S1D03GBA323224 90-L-075-KN-1-BC-80-D-3-S1-L-00-GBA-26-26-24 90L075KN1BC80D3S1L00GBA262624 90L075-KN-1-BC-80-R-3-S1-D-03-GBA-29-29-24 90L075KN1BC80R3S1D03GBA292924 90-L-075-KN-1-BC-80-R-3-S1-D-03-GBA-29-29-24 90L075KN1BC80R3S1D03GBA292924 90-L-075-KN-1-BC-80-R-3-S1-E-03-GBA-29-29-24 90L075KN1BC80R3S1E03GBA292924 90-L-075-KN-1-BC-80-R-4-S1-D-03-GBA-29-29-24 90L075KN1BC80R4S1D03GBA292924 90-L-075-KN-1-BC-80-R-4-S1-D-03-GBA-38-38-24 90L075KN1BC80R4S1D03GBA383824 90-L-075-KN-1-BC-80-S-4-S1-D-03-GBA-29-29-24 90L075KN1BC80S4S1D03GBA292924 90-L-075-KN-1-CD-60-S-4-S1-D-03-GBA-35-35-24 90L075KN1CD60S4S1D03GBA353524 90-L-075-KN-1-CD-80-D-4-S1-L-03-GBA-35-35-24 90L075KN1CD80D4S1L03GBA353524 90-L-075-KN-1-CD-80-P-4-S1-D-03-GBA-40-40-30 90L075KN1CD80P4S1D03GBA404030 90-L-075-KN-1-CD-80-R-3-S1-D-03-GBA-29-29-24 90L075KN1CD80R3S1D03GBA292924 90-L-075-KN-1-CD-80-R-3-S1-E-03-GBA-29-29-24 90L075KN1CD80R3S1E03GBA292924 90L075-KN-1-CD-80-R-3-S1-E-03-GBA-29-29-24 90L075KN1CD80R3S1E03GBA292924 90-L-075-KN-1-CD-80-R-4-C6-D-03-GBA-42-14-24 90L075KN1CD80R4C6D03GBA421424 90-L-075-KN-1-CD-80-R-4-S1-D-03-GBA-29-29-24 90L075KN1CD80R4S1D03GBA292924 90-L-075-KN-1-CD-80-R-4-S1-D-03-GBA-42-42-24 90L075KN1CD80R4S1D03GBA424224 90L075-KN-1-CD-80-R-4-S1-D-03-GBA-42-42-24 90L075KN1CD80R4S1D03GBA424224 90-L-075-KN-1-CD-80-S-4-S1-D-03-GBA-29-29-24 90L075KN1CD80S4S1D03GBA292924 90-L-075-KN-1-CD-80-S-4-S1-D-03-GBA-42-42-24 90L075KN1CD80S4S1D03GBA424224 90-L-075-KN-1-NN-60-L-4-S1-D-03-GBA-35-35-20 90L075KN1NN60L4S1D03GBA353520 90L075-KN-1-NN-60-R-3-S1-D-03-GBA-29-29-24 90L075KN1NN60R3S1D03GBA292924 90-L-075-KN-1-NN-60-R-3-S1-D-03-GBA-29-29-24 90L075KN1NN60R3S1D03GBA292924 90L075-KN-1-NN-60-R-4-S1-D-03-GBA-38-38-24 90L075KN1NN60R4S1D03GBA383824 90-L-075-KN-1-NN-60-R-4-S1-D-03-GBA-38-38-24 90L075KN1NN60R4S1D03GBA383824 90-L-075-KN-1-NN-80-D-4-S1-L-03-GBA-35-35-24 90L075KN1NN80D4S1L03GBA353524 90-L-075-KN-1-NN-80-P-3-C6-D-03-GBA-42-42-24 90L075KN1NN80P3C6D03GBA424224 90-L-075-KN-1-NN-80-P-3-C6-E-03-EBC-35-35-24 90L075KN1NN80P3C6E03EBC353524 90-L-075-KN-1-NN-80-P-3-C6-E-03-GBA-35-35-24 90L075KN1NN80P3C6E03GBA353524 90-L-075-KN-1-NN-80-P-4-S1-D-03-GBA-17-17-24 90L075KN1NN80P4S1D03GBA171724 90-L-075-KN-1-NN-80-R-3-S1-D-03-GBA-29-29-24 90L075KN1NN80R3S1D03GBA292924 90L075-KN-1-NN-80-R-3-S1-D-03-GBA-29-29-24 90L075KN1NN80R3S1D03GBA292924 90-L-075-KN-1-NN-80-R-3-S1-D-03-GBA-35-35-24 90L075KN1NN80R3S1D03GBA353524 90L075-KN-1-NN-80-R-3-S1-E-03-GBA-29-29-24 90L075KN1NN80R3S1E03GBA292924 90-L-075-KN-1-NN-80-R-3-S1-E-03-GBA-29-29-24 90L075KN1NN80R3S1E03GBA292924 90-L-075-KN-1-NN-80-R-4-S1-D-03-GBA-20-20-24 90L075KN1NN80R4S1D03GBA202024 90-L-075-KN-1-NN-80-R-4-S1-D-03-GBA-35-35-24 90L075KN1NN80R4S1D03GBA353524 90-L-075-KN-1-NN-80-R-4-S1-D-03-GBA-42-42-24 90L075KN1NN80R4S1D03GBA424224 90L075-KN-1-NN-80-R-4-S1-D-03-GBA-42-42-24 90L075KN1NN80R4S1D03GBA424224 90-L-075-KN-1-NN-80-R-4-S1-E-03-GBA-35-35-24 90L075KN1NN80R4S1E03GBA353524 90-L-075-KN-1-NN-80-R-4-T1-D-03-GBA-21-21-24 90L075KN1NN80R4T1D03GBA212124 90-L-075-KN-1-NN-80-S-4-S1-C-03-GBA-32-32-24 90L075KN1NN80S4S1C03GBA323224 90-L-075-KN-1-NN-80-S-4-S1-D-03-GBA-23-23-24 90L075KN1NN80S4S1D03GBA232324 90-L-075-KN-1-NN-80-S-4-S1-D-03-GBA-29-29-24 90L075KN1NN80S4S1D03GBA292924 90-L-075-KN-5-AB-80-S-3-C7-D-03-GBA-35-35-30 90L075KN5AB80S3C7D03GBA353530 90L075-KN-5-AB-80-S-3-S1-E-03-GBA-30-30-32 90L075KN5AB80S3S1E03GBA303032 90-L-075-KN-5-AB-80-S-3-S1-E-03-GBA-30-30-32 90L075KN5AB80S3S1E03GBA303032 90L075-KN-5-AB-80-S-3-S1-E-03-GBA-42-42-24 90L075KN5AB80S3S1E03GBA424224 90-L-075-KN-5-AB-80-S-3-S1-E-03-GBA-42-42-24 90L075KN5AB80S3S1E03GBA424224 90L075-KN-5-AB-80-S-3-S1-E-03-GBA-42-42-32 90L075KN5AB80S3S1E03GBA424232 90-L-075-KN-5-AB-80-S-3-S1-E-03-GBA-42-42-32 90L075KN5AB80S3S1E03GBA424232 90-L-075-KN-5-BC-80-R-4-S1-D-03-GBA-20-20-24 90L075KN5BC80R4S1D03GBA202024 90-L-075-KN-5-BC-80-R-4-S1-D-03-GBA-35-35-24 90L075KN5BC80R4S1D03GBA353524 90-L-075-KN-5-CD-60-R-4-C7-D-03-GBA-35-35-24 90L075KN5CD60R4C7D03GBA353524 90-L-075-KN-5-CD-60-R-4-S1-D-03-GBA-35-35-24 90L075KN5CD60R4S1D03GBA353524 90L075-KN-5-CD-60-S-3-C7-D-03-GBA-30-30-24 90L075KN5CD60S3C7D03GBA303024 90-L-075-KN-5-CD-60-S-3-C7-D-03-GBA-30-30-24 90L075KN5CD60S3C7D03GBA303024 90-L-075-KN-5-CD-80-D-4-S1-L-03-GBA-26-26-28 90L075KN5CD80D4S1L03GBA262628 90-L-075-KN-5-CD-80-R-3-C7-D-04-GBA-32-32-24 90L075KN5CD80R3C7D04GBA323224 90-L-075-KN-5-CD-80-R-4-S1-D-03-GBA-29-29-24 90L075KN5CD80R4S1D03GBA292924 90L075-KN-5-CD-80-S-3-C7-D-03-GBA-38-38-24 90L075KN5CD80S3C7D03GBA383824 90-L-075-KN-5-CD-80-S-3-C7-D-03-GBA-38-38-24 90L075KN5CD80S3C7D03GBA383824 90-L-075-KN-5-CD-80-S-4-S1-D-03-GBA-26-26-24 90L075KN5CD80S4S1D03GBA262624 90-L-075-KN-5-NN-60-L-3-C6-E-03-GBA-35-35-24 90L075KN5NN60L3C6E03GBA353524 90L075-KN-5-NN-60-S-3-C7-D-03-GBA-42-42-24 90L075KN5NN60S3C7D03GBA424224 90-L-075-KN-5-NN-60-S-3-C7-D-03-GBA-42-42-24 90L075KN5NN60S3C7D03GBA424224 90L075-KN-5-NN-60-S-3-S1-D-03-GBA-30-30-24 90L075KN5NN60S3S1D03GBA303024 90-L-075-KN-5-NN-60-S-3-S1-D-03-GBA-30-30-24 90L075KN5NN60S3S1D03GBA303024 90-L-075-KN-5-NN-80-R-3-S1-D-04-GBA-32-32-24 90L075KN5NN80R3S1D04GBA323224 90L075-KN-5-NN-80-R-3-S1-E-03-GBA-35-35-24 90L075KN5NN80R3S1E03GBA353524 90-L-075-KN-5-NN-80-R-3-S1-E-03-GBA-35-35-24 90L075KN5NN80R3S1E03GBA353524 90-L-075-KN-5-NN-80-R-4-S1-D-03-GBA-20-20-24 90L075KN5NN80R4S1D03GBA202024 。