首頁技術(shù)中心>曲軸研磨指南約翰迪爾John Deere柴油機(jī)曲軸主軸頸曲軸連桿軸頸尺寸

曲軸研磨指南約翰迪爾John Deere柴油機(jī)曲軸主軸頸曲軸連桿軸頸尺寸

2022-8-30 8:42:01

重要事項(xiàng)：如果要重新約翰迪爾John Deere柴油機(jī)研磨曲軸，應(yīng)進(jìn)行曲軸研磨，使用以下方法

只有經(jīng)驗(yàn)豐富的人員才能遵守推薦的指南：

曲軸尺寸和光潔度1.比較曲軸軸頸測量值規(guī)格。在檢查期間獲取，并確定軸頸要重新研磨的尺寸。

約翰迪爾John Deere柴油機(jī)曲軸連桿（銷）軸頸具有：底切圓角半徑。不要2.研磨所有主軸頸或所有連桿當(dāng)軸頸達(dá)到相同要求尺寸時(shí)，在該底切區(qū)域內(nèi)研磨?？匆娛褂贸叽邕^小的軸承。曲軸磨削規(guī)格稍后在這個(gè)組中。

除標(biāo)準(zhǔn)尺寸的主軸承外，0.292

尺寸小于0.0115英寸和0.552毫米（0.0217英寸）重要：所有主軸頸（切向）圓角

約翰迪爾John Deere柴油機(jī)軸承可用于主軸承軸頸。半徑不得有任何尖銳的磨痕或劃痕。圓角必須

規(guī)格：平滑地融入軸頸，并約翰迪爾John Deere柴油機(jī)曲軸頰板主軸承尺寸過小。用a檢查半徑可用外徑……0.292 mm（0.0115 in.）和圓角量規(guī)。0.552毫米（0.0217英寸）桿（銷）軸頸只有0.292毫米（0.0115英寸），必須注意避免

僅適用于尺寸過小的軸承。局部加熱，經(jīng)常產(chǎn)生磨削裂紋。冷卻過大量使用尺寸過小的桿（銷）軸頸冷卻液進(jìn)行磨削時(shí)的規(guī)格曲軸。不要將砂輪外徑為0.292 mm（0.0115 in.）的可用軸承推壓到工件中。

如果軸頸呈錐形、不圓、刻痕或用軸頸研磨曲軸損壞，研磨約翰迪爾John Deere柴油機(jī)曲軸并安裝正確的逆時(shí)針轉(zhuǎn)動裝置，如圖所示尺寸過小的軸承。從曲軸前端開始。

研磨或拋光對面的軸頸

重要事項(xiàng)：如果使用尺寸過小的軸承，請注意研磨方向。檢查后的軸承間隙

軸承蓋已擰緊至3。將地面打磨或研磨至規(guī)定扭矩。如果尺寸過小，則進(jìn)行表面處理，以防止軸頸過度磨損。軸承太緊，間隙過大

如果不在規(guī)格范圍內(nèi)，則將軸頸和軸承上的所有機(jī)油擦拭干凈。這將導(dǎo)致零件過早磨損。

注：生產(chǎn)曲軸為感應(yīng)淬火規(guī)格

并在工廠進(jìn)行噴丸處理。現(xiàn)場超大推力墊圈由于可用外徑為0.18 mm（0.007 in.），不建議進(jìn)行噴丸處理曲軸端隙……0.038-0.380 mm所需設(shè)備和零件幾何形狀（0.0015-0.0150英寸）當(dāng)推力面重新研磨，并用5.石材打磨軸頸上所有油孔的邊緣時(shí)

使用超大墊圈，曲軸端隙表面光滑，以提供半徑規(guī)格必須保持在約1.50毫米（0.060英寸）以內(nèi)。0.038-0.380毫米（0.0015-0.0150英寸）。看見6.檢查曲軸端隙。完成磨削后，檢查曲軸是否這一組。用熒光磁粉法或類似方法檢測裂紋。去磁化4. 約翰迪爾John Deere柴油機(jī)曲軸推力面是否磨損或檢查后曲軸是否磨損。過度開槽，重新研磨和拋光。維持每個(gè)止推表面7之間的規(guī)定半徑。徹底清潔曲軸和油道以及軸承軸頸。帶溶劑的超大止推墊圈。用壓縮空氣干燥。

兩個(gè)0.18毫米（0.007英寸）的超大墊

可獲得的參見本組前面的推力軸承新零件規(guī)格。

曲軸磨削規(guī)范

項(xiàng)目測量規(guī)范

約翰迪爾John Deere柴油機(jī)主軸頸和連桿軸頸表面光潔度：0.20 Um（8 AA）

推力軸頸表面光潔度0.40 Um（16 AA）

桿軸頸（底切）圓角半徑4.10-4.37 mm（0.158-0.172 in.）

主軸頸（切向）圓角半徑3.94-4.44 mm（0.155-0.0175 in.）

推力軸頸（切向）圓角半徑3.56-4.06 mm（0.140-0.160 in.）

推力軸頸寬度44.387-44.487 mm（1.7475-1.7515英寸）

曲軸主軸頸相對于1號軸頸的最大跳動為0.13 mm（0.0051 in.）和7號軸頸

相鄰曲軸主軸頸之間的最大跳動為0.06 mm（0.0024 in.）

曲軸主軸頸（使用外徑95.201-95.227 mm（3.7480-標(biāo)準(zhǔn)軸承）3.7491英寸。）

曲軸連桿軸頸（使用外徑76.149-76.175 mm（2.9980-標(biāo)準(zhǔn)軸承）2.9990英寸。）

曲軸主軸頸（使用外徑94.909-94.935 mm（3.73666-尺寸小于3.7376英寸的0.292毫米（0.0115英寸）

軸承）曲軸連桿軸頸（使用外徑0.292，75.857-75.883 mm（2.9865-尺寸小于0.0115英寸的軸承）2.9875英寸曲軸主軸頸（使用外徑94.649-94.675 mm（3.7263-尺寸小于3.7274英寸0.552毫米（0.0217英寸）軸承）1尺寸小于10.552 mm（0.0217 in.）的軸承僅適用于曲軸主軸頸。

RG，RG347101176-19-23OCT97-1/1

Crankshaft Grinding Guidelines

IMPORTANT: Crankshaft grinding should be done If the crankshaft is to be reground, use the following

ONLY be experienced personnel on recommended guidelines:

crankshaft size and finish 1. Compare the crankshaft journal measurements

specifications. taken during inspection and determine the size to which the journals are to be reground.

Crankshaft rod (pin) journals have

an undercut fillet radius. DO NOT 2. Grind all main journals or all connecting rod

grind within this undercut area when journals to the same required size. See

undersize bearings are used. CRANKSHAFT GRINDING SPECIFICATIONS later

in this group.

In addition to the standard size main bearings, 0.292

mm (0.0115 in.) and 0.552 mm (0.0217 in.) undersize IMPORTANT: All main journal (tangential) fillets

bearings are available for main bearing journals. radii must be free of any sharp grind marks or scratches. The fillet must

Specification blend smoothly into the journal and

Undersized Main Bearings crank cheek. Check the radii with a

Available—OD ..... 0.292 mm (0.0115 in.) and fillet gauge.

0.552 mm (0.0217 in.)

Rod (pin) journals have only 0.292 mm (0.0115 in.) Care must be taken to avoid

undersize bearings only. localized heating which often produces grinding cracks. Cool the

Specification crankshaft while grinding by using Undersized Rod (Pin) Journal coolant generously. DO NOT crowd Bearings Available—OD .................................. 0.292 mm (0.0115 in.) the grinding wheel into the work.

If journals are tapered, out-of-round, scored, or Grind crankshaft with journals

damaged, grind the crankshaft and install the proper turning counterclockwise, as viewed

undersize bearings. from the front end of the crankshaft.

Lap or polish journals in opposite

IMPORTANT: If undersize bearings are used, direction of grinding. check bearing clearance after

bearing caps have been tightened to 3. Polish or lap the ground surfaces to the specified specified torque. If undersize finish to prevent excessive wear of the journals. bearings are too tight and clearance

is not within specifications, the journal and bearing will be wiped clean of all oil. This would result in premature wear of parts.

NOTE: Production crankshafts are induction hardened Specification

and shotpeened at the factory. Field Oversize Thrust Washer

shotpeening is not recommended due to the Available—OD ....... 0.18 mm (0.007 in.)

Crankshaft—End Play ...... 0.038—0.380 mm

equipment required and part geometry. (0.0015—0.0150 in.)

When thrust surfaces are reground and an 5. Stone the edge of all oil holes in the journal

oversized washer is used, crankshaft end play surfaces smooth to provide a radius of

specification must be maintained to within approximately 1.50 mm (0.060 in.).

0.038—0.380 mm (0.0015—0.0150 in.). See

CHECK CRANKSHAFT END PLAY earlier in 6. When finished grinding, inspect the crankshaft for

this group. cracks with the Fluorescent Magnetic Particle method, or similar method. De-magnetize

4. If the thrust surfaces of the crankshaft are worn or crankshaft after inspection. grooved excessively, regrind and polish. Maintain

the specified radius between each thrust surface 7. Thoroughly clean the crankshaft and oil passages and the bearing journal. An oversized thrust washer with solvent. Dry with compressed air.

and two 0.18 mm (0.007 in.) oversized washers are

available. See THRUST BEARING NEW PART SPECIFICATIONS earlier in this group.

Crankshaft Grinding Specifications

Item Measurement Specification

Main and Rod Journal Surface Finish Lap 0.20 Um (8 AA)

Thrust Journal Surface Finish Lap 0.40 Um (16 AA)

Rod Journal (Undercut) Fillet Radius 4.10—4.37 mm (0.158—0.172 in.)

Main Journal (Tangential) Fillet Radius 3.94—4.44 mm (0.155—.0175 in.)

Thrust Journal (Tangential) Fillet Radius 3.56—4.06 mm (0.140—0.160 in.)

Thrust Journal Width 44.387—44.487 mm (1.7475—

1.7515 in.)

Crankshaft Main Journal Maximum Runout Relative to No. 1 0.13 mm (0.0051 in.) and No. 7 Journals

Crankshaft Main Journal Maximum Runout Between Adjacent 0.06 mm (0.0024 in.)

Cylinders

Crankshaft Main Journal (Using OD 95.201—95.227 mm (3.7480—

Standard Bearings) 3.7491 in.)

Crankshaft Rod Journal (Using OD 76.149—76.175 mm (2.9980—

Standard Bearings) 2.9990 in.)

Crankshaft Main Journal (Using OD 94.909—94.935 mm (3.73666—

0.292 mm (0.0115 in.) Undersize 3.7376 in.)

Bearings)

Crankshaft Rod Journal (Using 0.292 OD 75.857—75.883 mm (2.9865—

mm (0.0115 in.) Undersize Bearings) 2.9875 in.)

Crankshaft Main Journal (Using OD 94.649—94.675 mm (3.7263—

0.552 mm (0.0217 in.) Undersize 3.7274 in.)

Bearings)1

10.552 mm (0.0217 in.) undersize bearing sizes are available for crankshaft main journals only.

RG,RG34710,1176 –19–23OCT97–1/1

防凍液應(yīng)當(dāng)加多少為宜

有很多駕駛員打電話給我們，反映拖拉機(jī)的防凍液消耗的快，問他們情況，

說：加了一些到兩個(gè)刻度線中間的位置，沒過幾天就減少不少，到下刻線的位置了，之后又加防凍液到中間，過幾天還是如此。

在這里，我講一下這個(gè)問題，因?yàn)槲覀冊瓉韺@個(gè)問題也沒有在意，通過

用戶給我們打電話和我們下去的咨詢情況來看，這是一個(gè)值得講一講的問題。

我們的拖拉機(jī)的補(bǔ)充水箱的觀察窗的刻度線為上、下兩個(gè)刻度線，上刻度

線表示熱車時(shí)的防凍液的位置，商丘Perkins帕金斯1106A-7-TAG2約翰迪爾John Deere柴油機(jī)機(jī)油泵企業(yè),石嘴山Perkins帕金斯854F-E34TA約翰迪爾John Deere柴油機(jī)四配套哪家好,九江Perkins帕金斯4016TAG1A約翰迪爾John Deere柴油機(jī)控制屏企業(yè),泰州Perkins帕金斯2806C-E18TAG3柴油機(jī)去哪買專業(yè)服務(wù)中心,孝感Perkins帕金斯發(fā)電機(jī)組配件銷售企業(yè),懷化Perkins帕金斯403F-15TG約翰迪爾John Deere柴油機(jī)銷售售后代理商專業(yè)服務(wù)中心,畢節(jié)Perkins帕金斯1206E-E66TA約翰迪爾John Deere柴油機(jī)噴油嘴多少錢技術(shù)查詢中心,保定Perkins帕金斯1106D-E70TAG5約翰迪爾John Deere柴油機(jī)曲軸前后油封費(fèi)用,巴彥淖爾Perkins帕金斯403D-15T約翰迪爾John Deere柴油機(jī)啟動馬達(dá)網(wǎng)站,廈門康明斯配件供應(yīng)商費(fèi)用報(bào)價(jià)單,臨夏Perkins帕金斯1103A-33TG2約翰迪爾John Deere柴油機(jī)噴油嘴多少錢大概的價(jià)錢,而下刻度線表示涼車時(shí)的防凍液的位置，我們在加防凍液時(shí)應(yīng)當(dāng)是在涼車時(shí)加，加的數(shù)量應(yīng)當(dāng)是比下刻度線略高一點(diǎn)（高出約1厘米左右），如果加的太多防凍液會在工作時(shí)自然消耗掉。所以各位在加防凍液時(shí)應(yīng)當(dāng)適量，不要多加，因?yàn)槎嗉拥姆纼鲆菏菚p耗掉的，既費(fèi)錢又費(fèi)工。