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建材配套減速機行業標準解讀

南高齒技術中心副主任牛國夷做關于《建材設備配套減速機新行標解讀》的報告

  10月17日,2010水泥立磨減速機技術交流會暨“情系香格里拉”客戶答謝會在古城南京東郊國賓館隆重舉行。南京高精傳動南高齒技術中心副主任牛國夷做關于《建材設備配套減速機新行標解讀》的報告,整理如下:

  根據國家發改委辦公廳關于下達2006年標準項目計劃的通知[發改辦工業(2006)1093號文]精神 ,由國家建筑材料工業機械標準化技術委員會協調,確定建材行業用硬齒面減速機五項標準負責起草單位為南京高精傳動設備制造集團有限公司,并于2009年通過國家建筑材料工業機械標準化技術委員會組織的專家組的審查。

  其中五項標準為:

  立式磨機減速機標準JC/T 878.4 ,中心傳動磨機減速機標準JC/T 878.1 ,邊緣傳動磨機減速機標準JC/T 878.2 ,輥壓機減速機標準JC/T 878.5 ,窯用減速機標準JC/T 878.3

  五項標準分別從以下五個方面解讀的:

  一、分類

  1、立式磨機減速機的分類

  減速機按結構型式分為:

  圓錐齒輪-行星兩級傳動結構和圓錐齒輪-平行軸齒輪-行星三級傳動結構

  2、中心傳動磨機減速機的分類

  減速機按傳動功率分類,其代號用傳動功率(kW)的1/10表示。

  3、邊緣傳動減速機分類

  減速機按結構型式分為:

  不帶油底殼(用D表示);帶油底殼(用DX表示)。

  減速機按中心距及名義速比分類,

  減速機按裝配型式分為六種型式,

  減速機按輸出軸旋向(面對輸出軸看)分為:

  順時針(用R表示);

  逆時針(用L表示)。

  4、輥壓機減速機分類

  減速機按結構型式分為:

  a)兩級行星結構(用X表示);

  b)兩級行星加一級平行軸齒輪結構 (用XZ表示)。

  5、窯用減速機分類

  減速機按中心距、名義傳動比分類,減速機裝配型式分為兩種。

  二、規格參數

  1、立式磨機減速機的規格參數:

  減速機的P/n2數值 :1.8~203.66(功率50~6000kW,輸出轉速為21~45r/min) 一般的選型按減速機的P/n2為依據選型,即所選的減速機P/n2必須≤表中的P/n2,其中P為減速機的功率(kW),n2為減速機的輸出轉速(r /min)。

  注:實際是按扭矩選型,其P/n2和扭矩成正比。

  減速機輸入轉速:990r/min 。

  減速機垂直靜載荷:420~10600kN。

  減速機垂直動載荷:1260~31800kN。

  外形尺寸:行業標準已給出了減速機外形圖,但其實際根據不同的磨機、不同的用途、不同的工礦等條件實際進行更改。

  2、中心傳動磨機減速機的規格參數:

  中心傳動磨機減速機的功率: 800~6300kW。

  中心傳動磨機減速機的輸入轉速:750r/min。

  中心傳動磨機減速機的輸出轉速:14.5~18.3r/min不同的型號不同的輸出轉速,其在14.5~18.3r/min段中不連續。

  型號選用時根據電機功率對應相應傳動功率數值、輸入、輸出轉速選用相應型號中心傳動磨機減速機的外形尺寸在標準中也有規定,但實際中各生產廠家不盡相同。

  3、邊緣傳動磨機減速機的規格參數:

  邊緣傳動磨機減速機的功率:120~7900kW邊緣傳動磨機減速機的輸入轉速:600r/min、750r/min、990r/min三種,如有其它輸入轉速也可非標設計。

  邊緣傳動磨機減速機的速比:4、4.5、5、5.6、6.3、7.1六種不同的速比,如有其它速比也可非標設計。

  型號選用時根據電機功率、輸入轉速、速比對應相應傳動功率數值選用相應型號邊緣傳動磨機減速機的外形尺寸在標準中也有規定,但實際中各生產廠家不盡相同。

  4、輥壓機用減速機的規格參數:

  輥壓機用減速機的功率:50~4450kW。

  輥壓機用減速機的輸入轉速:750r/min、1000r/min、1500r/min三種,如有其它輸入轉速也可非標設計。

  輥壓機用減速機的速比:28~90十四種不同的標準速比,如有其它速比也可非標設計。

  型號選用時根據電機功率、輸入轉速、速比對應相應傳動功率數值選用相應型號輥壓機用減速機的外形尺寸在標準中也有規定,但實際中各生產廠家不盡相同。

  5、窯用減速機的規格參數:

  窯用減速機的功率:9~6060kW窯用減速機的輸入轉速:750r/min、1000r/min、1500r/min三種,如有其它輸入轉速也可非標設計。

  窯用減速機的速比:28~90十三種不同的標準速比,如有其它速比也可非標設計。

  型號選用時根據電機功率、輸入轉速、速比對應相應傳動功率數值選用相應型號窯用減速機的外形尺寸在標準中也有規定,但實際中各生產廠家不盡相同。
三、正常工作條件

 

 

  1、立式磨機減速機、中心傳動減速機的正常工作條件:

  減速機的工作環境溫度為:-40℃~+45℃。

  減速機采用循環潤滑,減速機進油口處潤滑油壓力為:0.15MPa~0.25MPa。

  減速機的潤滑油采用GB 5903-1995中的N320或N220工業閉式齒輪油。

  減速機的潤滑油的進油溫度不得超過+45℃ 。

  2、邊緣傳動減速機、輥壓機減速機、藥用減速機的正常工作條件:

  減速機的工作環境溫度為:-40℃~+45℃。

  減速機采用循環潤滑,減速機進油口處潤滑油壓力為:0.1MPa~0.2MPa。

  減速機的潤滑油采用GB 5903-1995中的N320或N220工業閉式齒輪油。

  減速機的潤滑油的進油溫度不得超過+45℃ 。

  四、主要零部件要求

  1、箱體:

  箱體采用焊接結構或鑄造結構,焊接箱體焊接技術要求應符合JB/T 5000.3的規定,材料抗拉強度不低于GB/T 700中375MPa的要求。箱體允許采用灰鑄鐵材料,材料機械性能應不低于GB/T 9439中的HT250的要求 ,箱體應進行去應力退火處理,表面進行噴砂處理;箱體應進行去應力退火處理,表面進行噴砂處理;箱體應進行煤油滲漏試驗,不得有滲漏現象。

  2、軸:

  所有軸采用優質合金鋼鍛件,應不低于GB/T 3077和JB/T 4385.1中40Cr的要求。

  所有軸均應調質處理,調質硬度不低于250HB。

  所有軸外圓以下1/3半徑尺寸范圍內超聲波探傷質量等級應不低于JB/T 5000.15中Ⅲ級的要求,其余部位應不低于Ⅳ級的要求

  3、齒輪:

   圓柱齒輪、錐齒輪材料為優質合金結構鋼鍛件,應不低于JB/T 6396和JB/T 4385.1中20CrMnMo的要求。

   圓柱齒輪、錐齒輪為滲碳淬火硬齒面齒輪,齒面硬度為58HRC~62HRC,芯部硬度為30HRC~42HRC,質量檢驗應不低于GB/T 3480.5 中MQ級的要求。

   圓柱齒輪精度不低于GB/T 10095中6級精度的要求,錐齒輪不低于GB/T 11365中7級精度的要求。

   圓柱齒輪強度計算按GB/T 3480執行,錐齒輪強度計算按GB/T 10062執行,設計壽命不低于100 000h。

   內齒輪齒圈采用優質合金鋼鍛件,應不低于JB/T 6396和JB/T 4385.1中42CrMo的要求,齒輪精度不低于GB/T 10095中7級精度的要求。

   所有齒輪齒頂以下3倍模數尺寸范圍內超聲波探傷質量等級應不低于JB/T 5000.15 中Ⅱ級的要求,其余部位應不低于Ⅲ級的要求。

  4、軸承:

  滾動軸承設計壽命不低于50000h。

  滑動軸承按無限壽命設計。

  五、整機性能要求

  1、立磨減速機整機性能要求:

  減速機運行時噪聲應不高于85dB(A)空負荷時在距底座200mm距離的箱體部位振動值應不高于2mm/s;減速機在運行過程中不得有異常振動、沖擊的現象。

  減速機運行時潤滑油溫升應不高于35℃,滾動軸承溫度應不高于90℃,滑動軸承不超過70℃;傳動效率:JMLX型減速機不低于97%;JMLXS型減速機不低于96%。

  2、中心傳動減速機整機性能要求:

  減速機運行時噪聲應不高于85dB(A)減速機的振動值應不低于GB/T 6404.2中C級的要求 ;減速機在運行過程中不得有異常振動、沖擊的現象。

  減速機運行時潤滑油溫升應不高于35℃,滾動軸承溫度應不高于90℃,滑動軸承溫度應不高于75℃ ;減速機傳動效率不低于97%。

  3、邊緣傳動磨機減速機整機性能要求:

  減速機運行時噪聲應不高于85dB(A)

  減速機的振動值應不低于GB/T 6404.2中 C級的要求 ;減速機在運行過程中不得有異常振動、沖擊的現象。

  減速機運行時潤滑油溫升應不高于35℃,滾動軸承溫度應不高于90℃;減速機傳動效率不低于98.5%。

  4、輥壓機用減速機整機性能要求:

  減速機運行時噪聲應不高于85dB(A)

  減速機的振動值應不低于GB/T 6404.2中 C級的要求 ;

  減速機在運行過程中不得有異常振動、沖擊的現象。

  減速機運行時潤滑油溫升應不高于35℃,滾動軸承溫度應不高于90℃;

  傳動效率:JGX型減速機應不低于97%;JGXZ型減速機應不低于96%

  5、窯用減速機整機性能要求:

  減速機運行時噪聲應不高于85dB(A)

  減速機的振動值應不低于GB/T 6404.2中 C級的要求;

  減速機在運行過程中不得有異常振動、沖擊的現象。

  減速機運行時潤滑油溫升應不高于35℃,滾動軸承溫度應不高于90℃;

  減速機傳動效率不低于97.5%。


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