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            軸承知識 首頁 >> 軸承知識 >> 液壓螺絲母壓力及裝置


          液壓螺絲母壓力及裝置


          液壓螺絲母壓力及裝置
           

          Another commonly used method to heat bearings, including pre-lubricated sealed and shielded types, is by using a hot plate.熱軸承,囊括預光滑密封和屏障的類型,另一種罕用的辦法是經過使用一度熱點鉛塊。 Gaps between the inner ring and the abutment are avoided by holding the inner ring against the shaft abutment during cooling.在結冰進程中對于軸壩肩的內圈,內圈與橋臺之間的差異是能夠防止的。

          It is essential to apply heat uniformly throughout the entire bearing.它是必沒有可少的一致實用于整個軸承熱。 It is recommended that a torch not be used to heat the inner ring during installation due to the very high localized heat torches produce.據提議,火把沒有能在裝置過??程頂用于加熱,內圈由于無比高的全部加熱火柴發生的。 No matter what method is used: NTN Bearings should never be heated above 120°C (248°F)沒有管用什么辦法的問題:NTN軸承絕沒有應加熱超越120℃(248 ° F )

          Outer Ring Fitting 外環修配
          For outer ring interference fits, the outer rings of small type bearings can be pressed in at room temperature.中型軸承的外圈,外圈過盈合作,能夠在室溫下按。 Installation of large interference fits and large size bearings is assisted by heating the housing or cooling the outer ring before installation.大盈合作和重型軸承的裝置輔佐加熱住宅或者事先裝置結冰外圈。 When cooling the outer ring, extreme care must be taken to prevent corrosion due to moisture from the atmosphere condensing on the cooled parts.結冰外圈時,必需分外不慎,由于結冰元件的濕疹凝聚的氛圍,以預防侵蝕。 Parts should be dried after they have been mounted and should be coated with a suitable rust preventative compound.整機應停止枯燥后,他們已裝置,并應與一度適合的防銹劑化合絕緣層。

          Dismounting Cylindrical Bore Bearings 拆裝圓柱孔軸承
          When dismounting bearings during maintenance and inspection procedures care must be taken not to damage any components of the bearing or accompanying machinery.當組裝軸承維護和審查順序照顧時期,必需采取沒有損壞軸承或者陪同機器的任何組件。 When removing inner or outer rings that have been installed with interference fits, the dismounting force should be applied to that ring only.當芟除已裝置干預合作的外部或者內部環,組裝力應只實用于該環。

           
          For small bearings, bearing pullers or hydraulic presses as shown in figure 3 are commonly used for dismounting.對于于中型軸承,軸承車夫或者液壓機,如圖3所示,一般用來組裝。 Large bearings that have been in service for a long period of time and installed with interference fits require considerable dismounting force.已效勞了很長一段工夫,并與攪擾適宜裝置重型軸承需求相等大的組裝力。 In addition, fretting corrosion is likely to have formed on the mating surfaces, further complicating dismounting.于是,微動侵蝕是能夠的合作名義上造成的,組裝進一步簡單化。

          In some designs, consideration has been given to overcome this dismounting difficulty by injecting oil between the mating surfaces.在某些設計中已思忖,克制這種打針合作面之間的酒精組裝艱難。 If available, special induction heaters may also be used to expand the inner rings before disassembly.假如部分話,也能夠是特別的感應加熱器用來擴展內圈組裝前。

          A dismounted bearing should only be reused if it is not damaged and has not reached its fatigue life.一度卸除軸承只該當重用,假如沒有損壞,并沒有到達其疲倦壽數。

          94-12石排灣/ SFCW大型軸承-技術補充

          液壓螺絲母壓力式常會WidthsThe表1的第一全體給出了流體壓力的相近值時使用的液壓螺絲母的裝置辦法。 Values derive from standard formulae for press fit mounting force (TA Harris), with modifications to account for the sleeve taper.值來自壓合作裝置力(電訊局長哈里斯)的標準公式,套筒錐修正帳戶。 The second part of the table lists the mounted assembly widths for both the SPW & SFCW units, (with bearings in the fixed position).表的第二全體列出的SPW SFCW部門,在流動地位的軸承已裝置的組件幅度。

          Table 1: Hydraulic Nut Mounting Pressures & Mounted 表1:液壓螺絲母壓力及裝置
          Assembly Widths for SPW and SFCW Units 常會SPW和SFCW部門幅度


           石排灣/
          SFCW SFCW  Hydraulic 液壓
          Nut 堅果  Clearance Reduction 游隙的縮小  Hydraulic Pressure 液壓 
          min. 分。 max 大  min. 分。 max 大 


           

          <深溝軸承/td>
           
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