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index.html > 新聞資訊 > 行業資訊 >

汽車用各種千斤頂如何使用?

文章出處:未知作者:admin人氣:發表時間:2016-05-14 10:18【

購買汽車時,車輛后備箱位置里都會隨車附帶一些簡單的汽車維修工具,除了常見的扳手和螺絲刀外,還有一個“大件”就是千斤頂,不同車型配置的千斤頂種類也不一樣,那么具體使用方法都是怎樣的呢?

 
  家用車考慮到空間問題,一般都會將自帶的千斤頂放置于后備箱下面,掀開后備箱的下隔板我們就可以看到了。家用千斤頂通常設計比較簡便,主要可分為齒條千斤頂、機械千斤頂、液壓千斤頂和重氣千斤頂幾類。常用與更換輪胎和查看底盤情況時會用到。
 
  齒條千斤頂:家用車中最常見的工具類型,由人力通過杠桿和齒輪帶動齒條頂舉重物,這類千斤頂有兩種造型,一種是“人字形”,一種是“菱形”。人字形千斤頂重量輕,折疊起來后體積熊好存放,缺點是支撐重量較小,也不十分牢固,一般用于1噸左右的家用轎車。菱形千斤頂的原理與人字形大同小異,在使用前先熟悉一下搖柄的組裝之后再使用。
 
  機械式千斤頂:通過螺紋的轉動實現上升的作用,通過螺紋的自鎖作用來支撐重物。這種千斤頂結構簡單,不已損壞而且承載重量比較大,傳動效率比低,上升和下降過程緩慢且自重較大,使用起來是個體力活。
 
  液壓千斤頂:利用油壓來舉升的千斤頂使用起來比較省時省力,原理是手動將儲油腔內的油通過單向閥壓入油缸來舉升重物。這種千斤頂舉升和回降的速度快,能夠承受3噸左右的重量,汽車維修廠可以看到它,但是體積很大,攜帶極不方便,雖然好用但也要考慮車內空間和美觀度,所以基本不會有哪輛車會配置這么一件龐然大物。
 
  充氣千斤頂:這種千斤頂目前還是很少見的,基本屬于單獨購買的工具。充氣千斤頂適用于比較特殊的環境,比如越野車的自救和脫困、路況艱難的救援等。它的原理是通過膠管連接汽車排氣管,利用汽車尾氣排放來給集氣包充氣來達到支撐作用。集氣包十分堅韌能夠承受4噸左右的重量,也因不受路況限制,省去了尋找平坦地面的麻煩,隨時可用。
 
  使用注意事項
 
  1.在修車前首先要將車輛固定住,以免在舉升的過程中車輛打滑對車和人帶來損害。固定車輛光使用手剎是不夠的,最穩妥的方法是拉起手剎同時將手動擋車型掛入1檔或倒檔,自動擋車型拉起手剎后將擋位推至P檔即可。
 
  2.千斤頂一定要擺放在堅硬平坦的地面上,如果不巧車壞在了松軟的地面或沙石中,可以使用質地堅硬的木板點在千斤頂下保證千斤頂的支撐角度,不同環境方法不一,但一定要保證千斤頂的穩妥。另外還可以將備胎放制在底盤上,若千斤頂不幸“夭折”了還有備胎可以“兜底”。
 
  3.每輛車的側裙內側都有與側裙平行的千斤頂的支撐點,用手就可以摸到,那么在使用千斤頂時一定要支撐在專用的支撐點上,支撐點由鋼板制造強度比較大。其他部位像發動機下護板、懸掛的下擺臂都要避免千斤頂的支撐,由于本身強度較低,出現打滑時容易造成不必要的損傷。
 
  4.使用千斤頂的時候通常是采用手搖式進行舉升,在使用時用力一定要均勻,切記過快過猛。特別是在剛與車身接觸的時候,一定要確認千斤頂的位置和穩固性,若是用力過猛容易把千斤頂位置和角度碰歪,再降下去重新舉升費時費力,不如從開始穩中求升的好。
 
  千斤頂靠的是物理作用,所以在使用上并不是多困難的事,但如果不注意使用方法,本來事半功倍的事情也會變得事倍功半。
  

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