機械英語 挖掘機部分_圖文

1、Unit 7Hydraulic Excavators液壓挖掘機71Overview概述 7.1.1Basic Concept 基本概念A(yù)n excavator is an engineering vehicle consisting of an articulated arm (boom,stick, bucket and cab mounted on a pivot (arotating platform atop an undercarriage with tracks or wheels. Their design is a natural progression from the st

2、eam shovel.挖掘機是一種由鉸接臂桿（動臂和斗桿）、鏟斗和安裝于履帶或輪式底盤上的轉(zhuǎn)盤（一種旋轉(zhuǎn)平臺）所組成的工程機械（車輛）。挖掘機是在蒸汽鏟的基礎(chǔ)上自然發(fā)展起來的。The history of heavy excavating machinery began in 1835when the dipper shovel was invented to excavate hard soil and rock and to load trucks. Of course, with the invention of gasoline-and diesel-powered vehicles,

3、 construction equipment became even more adaptable. Most construction equipment is powered by diesel engines, although electric-power, battery power, and propane tanks are used on specialized equipment.重型挖掘機的歷史始于1835年，當(dāng)時發(fā)明了拉鏟式挖掘機用于開挖堅硬的土石方及裝載卡車。當(dāng)然，隨著汽油機和柴油機車輛的發(fā)明，工程機械也變得越來越適用。雖然在一些專用設(shè)備上使用了電力驅(qū)動、蓄電池驅(qū)動和

4、丙烷氣罐，然而大多數(shù)工程機械仍然依靠柴油機驅(qū)動。Design modifications are driven by customer demand. As of 2000, the two primary areas where customers would like to see more improvements are in the ease of operation and the operator's comfort. The need for simple operation is forced by the fact that there are fewer skil

5、led operators in the marketplace. And operations and reliability are both improving because of the continuing integration of electronics, automation, better engine technology, and on-board diagnostics. It is now up to the manufacturers to cost-effectively incorporate improvements.客戶要求推動著設(shè)計的改進。自從2000

6、年以來，客戶所期望改進的兩個主要方面為操作方便性和操作舒適性。操作簡單的要求迫于在市場中很難找到熟練操作人員的事實。由于電子技術(shù)、自動化、高性能發(fā)動機技術(shù)、在線診斷技術(shù)的不斷集成，操作性和可靠性均得到了不斷的改進。目前，制造商在進行各種成本效益方面的改進。7.1.2Applications應(yīng)用 12 34 56 78 910 1112 13141. digging and loading 挖掘裝載；2. stonework 石方工程；3. mining engineering 采掘工程；4. port operation 港口作業(yè)；5. trench excavation 開挖坑槽；6. t

7、ake down old buildings 建筑拆除；7. rock breaking 巖石破碎；8. under water operation 水下作業(yè)；9. pipe laying 鋪設(shè)管道；10. hoisting heavy object 起吊重物；11. breaking pavement 破碎路面；12. clear up side slope 整理邊坡；13. watercourse clearance 疏通水道；14. removal treatment 清理作業(yè)7.1.3Types類型 12 34 56 78 910 11121. mini type excavator

8、微型挖掘機；2.small type excavator 小型挖掘機；3.medium type excavator 中型挖掘機；4.large type excavator 大型挖掘機；5. wheel excavator 輪式挖掘機；6. large type shovel （face excavator ）大型正鏟挖掘機；7. Ultra high demolition hydraulic excavator 超高層建筑物拆除液壓挖掘機；8. river channel dredging excavator 河道疏浚挖掘機；9. telescopic boom excavator 伸縮臂

9、式挖掘機；10. wetlands excavator 濕地挖掘機；11. wheel backhoe loader 輪式挖掘裝載機；12. radio controlled excavator 無線控制型挖掘機7.2Components and Features 組成與特點7.2.1Overall Structure總體結(jié)構(gòu) 1. diesel engine and hydraulic system 柴油機及液壓系統(tǒng)；2.undercarriage 行走支承機構(gòu)；3. swing mechanism 回轉(zhuǎn)機構(gòu)；4. work equipment assembly 工作裝置總成；5. stee

10、ring and operating system 轉(zhuǎn)向操縱系統(tǒng)7.2.2Major Components 主要部件Diesel Engine and Hydraulic System柴油機及液壓系統(tǒng) 1. diesel engine 柴油機；2. hydraulic pump 液壓泵Undercarriage 行走支承機構(gòu) 1. main frame 主機架；2. track 履帶；3. track idler 導(dǎo)向輪；4. track frame 履帶臺車架；5. final drive(drivingmotor and drive sprocket 最終傳動裝

11、置（液壓馬達與驅(qū)動鏈輪）Work Equipment Assembly工作裝置總成 1. bucket 鏟斗；2. bucket linkage 鏟斗連接件；3. bucket cylinder 鏟斗油缸；4. arm 斗桿；5. arm cylinder 斗桿油缸；6. boom 動臂；7. hydraulic pipeline 液壓管路；8.boom cylinder 動臂油缸；9. bucket lip 斗齒General Purpose Bucket通用鏟斗 1.anti-torsion pipe fitted for increased strength

12、抗扭增強鋼管；2.two piece side plates 兩邊側(cè)板；3. wear straps fitted to increase base strength 斗底增強耐磨板條；4. cutting edge 切削刃Steering and Operating System 轉(zhuǎn)向操縱系統(tǒng) 1. driversSeat 駕駛員座椅；2. arm rest 扶手；3. joystick control 操縱控制手柄；4. control pedal 操縱踏板；5. travel lever 行走操縱桿；6. monitor 工況監(jiān)視器；7. console 儀表控制臺7.2.

13、3General Arrangement of Large Type Excavator大型挖掘機總體布置 1. engines 發(fā)動機；2. PTO 分動箱；3. hydraulic pumps 液壓泵；4. hydraulic tank 液壓油箱；5. oil coolers 液壓油冷卻器；6. control valves 控制閥；7. swing motors 回轉(zhuǎn)馬達；8. swivel joint 旋轉(zhuǎn)接頭；9. fuel tank 燃油箱；10. radiators 散熱器；11. air cleaners 空氣濾清器；12. hydraulic filters 液壓過濾器；13

14、. operator cab 駕駛室；14. walkways 行走通道7.2.4Typical Hydraulic System 典型液壓系統(tǒng) 1. hydraulic pump 液壓泵；2、4. distributing valve group 分配閥組；3. check valve 單向閥；5. speed limit valve 速度限制閥；6. hydraulic cylinder 液壓缸；7、8. traveling hydraulic motor 行走液壓馬達；9. double speed valve 雙速閥10. slewing hydraulic motor 回轉(zhuǎn)液壓馬達；

15、11. boom cylinder 動臂油缸；12. auxiliary cylinder 輔助油缸；13. arm cylinder 斗桿油缸；14. bucket cylinder 鏟斗油缸；15. back pressure valve 背壓閥；16. oil cooler 冷卻器；17. oil filter 濾油器7.2.5APC System自動功率控制系統(tǒng) 1. engine 發(fā)動機；2. APC control valve APC 控制閥；3. hydraulic pump 液壓泵；4. APC &accelerator back up switch APC 與加速器備

16、用開關(guān)；5. pressure sensor 壓力傳感器；6. APC controller APC 控制器；7. accelerator emergency circuit 加速器應(yīng)急回路；8. APC emergency circuit APC 應(yīng)急回路；9.accelerator dial 加速器調(diào)節(jié)刻度盤；10.ECU 電子控制單元；bination monitor 綜合監(jiān)視器；12.lever switch 杠桿操縱開關(guān)；13. high power switch 大功率開關(guān)；14.quick accelerator switch 快速加速開關(guān)7.2.6Specifications

17、工作性能Standard Equipment Specifications 標(biāo)準(zhǔn)裝置規(guī)格類型與性能參數(shù)1. Engine 發(fā)動機：Model 型號；Type ：Water-cooled, 4cycle ，Direct injection 類型：水冷，四沖程，直噴式；Aspiration ：Turbocharged 充氣形式：渦輪增壓；Number of cylinders 氣缸數(shù)；Bore x stroke 缸徑×沖程；Piston displacement 活塞排量；Governor ：Mechanical, all-speed control 調(diào)速器：機械式，全程調(diào)

18、速；Net Flywheel horsepower 凈飛輪功率；To meet U.S. EPA Tier 3emissions requirements 符合美國3類環(huán)保排放標(biāo)準(zhǔn)；Net flywheel power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler and alternator. 所標(biāo)示的凈飛輪功率是指發(fā)動機配備風(fēng)扇、空氣濾清器、消聲器和發(fā)電機時飛輪所能輸出的功率。2. Hydraulic System 液壓

19、系統(tǒng)：Max. pressure Travel 行走系統(tǒng)最大壓力；Max. pressure Swing 回轉(zhuǎn)系統(tǒng)最大壓力；HydrauMind system. ，Closed-center system with load-sensing valves andpressure-compensated valves 智能液壓系統(tǒng)，負(fù)荷感應(yīng)閥與壓力補償閥中心閉鎖系統(tǒng)；selectable working modes 可選工作模式；Main pump ：Variable-displacement piston pump 液壓主泵：變量柱塞泵；Maximum flow 最大流量；Sub-pump f

20、or control circuit 控制回路輔助液壓泵；Travel motors with parking brake 駐車制動型行走液壓馬達；Swing motor with swing holding brake 制動型回轉(zhuǎn)液壓馬達；Axial piston motor 軸向柱塞馬達；Relief valve setting 安全閥設(shè)定；Implement circuits 執(zhí)行回路；Travel circuit 行走回路；Swing circuit 回轉(zhuǎn)回路；Pilot circuit 控制回路；Service valve 操縱閥；Number of cylinders bore x

21、 stroke 液壓缸數(shù)量缸徑×行程；Service valves maximum flow 操縱閥最大流量3. Drives &Brakes 驅(qū)動和制動裝置：Steering control ：Two levers with pedals 轉(zhuǎn)向控制：兩組操縱桿和踏板；Drive method ：Fully hydrostatic 驅(qū)動方式：全靜液驅(qū)動；Travel motor ：Axial piston motor ，in-shoe design 行走馬達：軸向柱塞馬達，滑靴設(shè)計；Reduction system ：Planetary gear ，double reduct

22、ion減速系統(tǒng)：行星減速，雙級減速；Max. drawbar pull 最大牽引力；Max. travel speed 最大行駛速度；Service brake ：Hydraulic lock 行車制動：液壓鎖止；Parking brake ：Oil disc brake 駐車制動：濕式盤式制動4. Swing System 回轉(zhuǎn)系統(tǒng)：Driven by Hydraulic motor 液壓馬達驅(qū)動；Swing reduction 回轉(zhuǎn)減速；Planetary double reduction 行星雙級減速；Swing circle lubrication ：Grease-bathed 回轉(zhuǎn)圈

23、潤滑：油脂潤滑；Swing lock 回轉(zhuǎn)鎖定；Swing speed 回轉(zhuǎn)速度；Swing torque 回轉(zhuǎn)力矩5. Undercarriage 下部支承(行走機構(gòu) ：Center frame ：X-frame 中心機架：X 型機架；Track frame ：Box-section type 履帶臺車架：箱型截面；Sealed track 密封型履帶；Track adjuster ：Hydraulic type 張緊裝置：液壓型；No. of shoes 履帶板數(shù)量；No. of carrier rollers 托鏈輪數(shù)量；No. of track rollers 支重輪數(shù)量

24、Dimensions尺寸規(guī)格 1. Shipping Height 海運高度；2. Shipping Length 海運長度；3. Tail Swing Radius 尾部擺動半徑；4. Length to Center of Rollers 滾輪中心距離；5. Track Length 履帶長度；6. Ground Clearance 離地間隙；7. Track Gauge 軌距；8. Transport Width 運輸寬度；9. Cab Height 駕駛室高度；10. Counterweight Clearance 配重離地間隙Working Ranges工作范圍 1.

25、Maximum Digging Depth 最大挖掘深度；2. Maximum Reach at Ground Level 最大水平移動距離；3. Maximum Cutting Height 最大挖掘高度；4. Maximum Loading Height 最大裝載高度；5. MinimumLoading Height 最小裝載高度；6. Maximum Depth Cut for Level Bottom 最大水平切削深度；7. Maximum Vertical Wall Digging Depth 最大垂直挖掘深度7.2.7Small Excavator Features 小型挖掘機特點

26、 1. Mustang introduces a new bucket series with innovative design improvements that achieve greater bucket volumes, higher breakout forces and improved vertical digging.新型鏟斗系列進行了改進設(shè)計，具有更大的斗容量、更強的破碎力和更好的垂直挖掘。2. Standard headlights mounted on the boom and at the front of the cab provide excellent nigh

27、ttime visibility.安裝于動臂上和駕駛室前方的標(biāo)準(zhǔn)照明燈提供了最佳的夜間視覺。3. To help avoid damage and downtime, Mustang securely routes bucket cylinder hoses through the dipper stick. For faster attachment management and parts replacement, we connect boom and arm hoses on the outside of the machine.為避免損壞和停機，沿桿臂安全布置液壓缸軟管。為快速處理附

28、件和更換零件，在機器外部連接動臂和斗桿軟管。4. Independent right and left boom swing, for offset digging.動臂左、右獨立擺動，以適應(yīng)側(cè)向挖掘。5. Special digging situations call for specialized digging machines, which allow vertical digging even on slopes up to 15degrees.特殊的挖掘環(huán)境需要專業(yè)的挖掘機械，即使在15°的坡道上也可進行垂直挖掘作業(yè)。6. Mustangschassis includes

29、 edges reinforced with cast iron nearly indestructible. Thisheavy-duty reinforced bumper protects components against accidental collisions.底盤進行了鑄鐵棱邊強化，幾乎不可損壞。這種重型保險裝置可在碰撞事故中保護機械部件。7.3Attachments 工作附件 12 34 56 78 910 1112 1314 15161.grapple 抓斗；2.thumb Bucket 拇指型鏟斗；3.grab bucket 抓斗；4.excavator ripper

30、松土齒；5.rock digging 石料鏟斗；6.ditching bucket 挖溝鏟斗；7.tilting bucket 斜挖鏟斗；8.clamshell bucket 蚌殼式抓斗；9.mud bucket 挖泥斗；10.clean up bucket 清掃鏟斗；11. eliminator manual quick coupler 分離式手動快速連接器；12. hydraulic crusher 液壓破碎器；13. universal compaction wheel 萬能壓實輪；14. vibro hammer 振動錘；15. hydraulic breaker 液壓破碎錘；16.

31、skeleton bucket 格柵鏟斗7.4New Technology of Typical Hydraulic Excavator 典型液壓挖掘機新技術(shù)7.4.1Introduction 簡介The Hitachi ZAXIS-3series new-generation hydraulic excavators are packed with a host oftechnological features clean engine, Hitachi advanced hydraulic technologies, with strongundercarriage and front a

32、ttachment, plus well matching of power and speed. The ZAXIS-3series can get the job done with proven productivity, durability, and reliability, especially in heavy-duty excavation and quarry operations.日立ZAXIS-3系列新一代液壓挖掘機具有一系列技術(shù)特點：清潔發(fā)動機，先進的日立液壓技術(shù)，堅固耐用的行走底盤和工作裝置附件，以及功率與速度的良好匹配。ZAXIS-3系列挖掘機所具有的生產(chǎn)率、壽命和

33、可靠性得到了檢驗證實，特別是在重型挖掘和采石場作業(yè)更加適用。To yield high production yet maintain low fuel consumption, such was the objective of thedevelopment of a new engine and hydraulic system .以較低的燃料消耗獲得更大的生產(chǎn)能力是新型發(fā)動機和液壓系統(tǒng)研究的目標(biāo)。7.4.2New-Generation Clean Engine 新一代清潔發(fā)動機1. High Power Yet Low Fuel Consumption 高功率輸出低燃料消耗4%Incre

34、ase in output (vs.Conventional model. The new clean engine, complying with theemission regulations Tier 3in US(EPAand EU Stage III, can reduce fuel costs by electronic control.輸出功率增加4%（與普通型號發(fā)動機比較）。新型清潔發(fā)動機符合美國環(huán)保局3級與歐III 排放標(biāo)準(zhǔn)，并通過電子控制可降低燃料成本。2. Common Rail Type Fuel Injection System共軌型燃油噴射系統(tǒng) Electronic

35、 control common rail type fuel injection system drives an integrated fuel pump at an ultrahigh pressure to distribute fuel to each injector per cylinder through a common rail. This enables optimum combustion to generate big horsepower, and reduce PM and fuel consumption.電子控制共軌型燃油噴射系統(tǒng)驅(qū)動集成燃油泵，通過一個共用軌以

36、超高壓方式將燃油分配給每個汽缸的噴油器。這種系統(tǒng)能夠使燃燒過程得到優(yōu)化，從而產(chǎn)生較大的功率，并降低微粒排放和燃料消耗。3.Cooled EGR System冷卻廢氣再循環(huán)系統(tǒng) Exhaust gas is partially mixed with suction air to lower combustion temperature for reducing NOx and fuel consumption. Whatsmore, the EGR cooler cools down exhaust gas to increase airconcentration for complete co

37、mbustion, reducing PM.排放廢氣與吸入空氣進行部分混合以降低燃燒溫度，從而減小氮氧化合物NOx 與燃油消耗。此外，EGR 冷卻器使廢氣溫度降低以增加空氣濃度，達到完全燃燒和減少微粒排放的目的。7.4.3Advanced Hydraulic Technologies 先進的液壓技術(shù)1.Increased Digging Force 挖掘力增加7%more bucket digging force and 8%more arm digging force.鏟斗挖掘力增加7%，桿臂挖掘力增加8%。2. Enhanced Boom Recirculation System加速型動臂

38、再循環(huán)系統(tǒng) In combined operation of boom lower and arm, arm speed can be increased by approximately 15%over the conventional. Pressurized oil from boom cylinder bottom side is delivered to boom cylinder rod side to lower the boom, assisted by boom weight. Conventionally, pressurised oil from pump is deli

39、vered to boom cylinder rod side to lower the boom. The new system also allows an efficient combined operation of swing and lowering the boom.動臂下降與桿臂組合作業(yè)時，與常規(guī)挖掘機相比較桿臂速度大約可增加15%。動臂油缸底部一端的壓力油被輸送到動臂油缸的活塞桿一邊，以降低動臂，動臂重量加速了降低過程。而在一般情況下，通過使來自液壓泵的壓力油流入動臂油缸活塞桿一端降低動臂。新系統(tǒng)也可以實現(xiàn)擺動與降低動臂的高效組合作業(yè)。3. Boom Mode Selecto

40、r動臂工作模式選擇 The amount the body can be lifted or pulled by the front of machine can be ON or OFF selected. This helps to provide for more comfortable operation and contributes to longer component service life.挖掘機前部工裝提升或推移機體的力量大小可通過一個ON/OFF選擇開關(guān)進行選擇。這種選擇有助于提高操作舒適性和延長部件工作壽命。（1）ON Comfortable mode 舒適工作模式（

41、開關(guān)位置ON） There is little lifting or pulling of the body so there is less vibration and shock.機體幾乎沒有提升或推移，因而振動和沖擊較小。（2）OFF Powerful mode 重型工作模式（開關(guān)位置OFF） Much lifting and pulling of the body so there is more vibration and shock.機體有較大的抬起和推移，因而振動和沖擊較大。4. Larger-Diameter Front Piping 大直徑前部管路Arm piping is

42、increased in diameter to reduce hydraulic loss (theoretically7%for speedy front operation.增加桿臂油管直徑以減少液壓損失（理論上為7%）提高作業(yè)速度。5. Combined Operation of Boom and Arm動臂與桿臂的組合作業(yè) In combined operation of swing +boom lower +arm roll-out, or in leveling (boomlower +armroll-out, arm roll-out speed can be increase

43、d greatly. Hereswhy. A variable throttle, provided in the arm circuit, adjusts the flow when needed to reduce hydraulic loss in combined operation with arm roll-out.在回轉(zhuǎn)+動臂下降+桿臂外伸的組合作業(yè)中，或者在平整作業(yè)（動臂下降+桿臂外伸）中，可大大提高桿臂外伸速度。原因在于，在桿臂外伸的組合作業(yè)中當(dāng)需要減少液壓損失時，桿臂回路中的可變節(jié)流閥將對流量進行調(diào)節(jié)。6. New Bucket Regenerative System 新型

44、鏟斗再循環(huán)系統(tǒng)Swift bucket actions can be done in combined operation for excavation through the new bucket regenerative circuit. When the load to the bucket is light, pressurized oil from bucket cylinder rod side is delivered through a regenerative valve to bucket cylinder bottom side for the effective use

45、 of hydraulic energy.通過新型的鏟斗再循環(huán)回路能夠加快組合挖掘作業(yè)中鏟斗的動作。當(dāng)鏟斗上的載荷較輕時，由鏟斗油缸活塞桿一端產(chǎn)生的壓力油通過再循環(huán)閥傳輸?shù)界P斗油缸底端以便有效利用液壓能量。7.4.4Strengthened Undercarriage 加強型行走機構(gòu)1.Increased Loading Capacity of Swing Bearing 回轉(zhuǎn)軸承承載能力增強The swing circle ball bearing ultilizes more balls to boost the loading capacity of the swing circle b

46、y approximately 6%,allowing stable swing even in tough operation.回轉(zhuǎn)循環(huán)滾珠軸承采用了更多的滾珠，使?jié)L圈的承載能力大約提高了6%，即使在重載工況下也能穩(wěn)定運行。2.Strengthened Track Links強化履帶鏈 The boss diameter of each track link is increased by approximately 19%.The thickness of each track link is also increased by approximately 57%.Thickened tr

47、ack links extend service life.每一履帶鏈條的凸臺直徑增加了大約19%。每一履帶鏈條的厚度也增加了大約57%。加厚的履帶鏈條延長了使用壽命。3.Strengthened Upper Roller Bracket強化了上托鏈輪支架 The upper roller bracket wall thickness is increased for higher strength.增加上托鏈輪支架壁厚以提高強度。4.Full Track Guard Provided Standard全履帶防護裝置標(biāo)準(zhǔn)化 On the H-specification machines, fu

48、ll track guards are provided standard. Full track guards protect track links and lower rollers from damage and deformation. Moreover, they also keep out stones, preventing the overload to the undercarriage to reduce wear and damage.在H 型挖掘機上，提供了標(biāo)準(zhǔn)的全履帶防護裝置。全履帶防護裝置保護了履帶鏈條和支重輪，避免了損壞與變形。而且，履帶防護裝置也阻止了石塊，防

49、止了行走機構(gòu)的過載，減少了磨損和損壞。5.Pressed Master Pins壓力防松主銷 The master pin of each track link is pressed, instead of master pin using a pin retention to avoid disengagement.對每個履帶鏈條主銷進行加壓，代替了使用釘型銷的防松工藝。6.Strengthened Idler Pedestal增強型導(dǎo)向輪支座 The bearing length of the idler pedestal is extended by approximately 67%t

50、o increase durability and service life.導(dǎo)向輪支座支承長度延長了大約67%以增加耐久性和壽命。7.Strengthened Idler Bracket 增強型導(dǎo)向輪支架The idler bracket is thickened for rigidity to prevent deformation and increase durability.增加導(dǎo)向輪支架厚度以提高剛度，防止變形并增加耐久性。7.4.5Strengthened Front Components 增強型工作裝置1. 5%Increase in Strength with Stronge

51、r Pin Material 高強度銷軸材料強度增加5% The strength of pins, used in the arm and boom, is increased by 5%,using harder steel material. 應(yīng)用高強度鋼材，使桿臂和動臂上的銷軸強度提高5%。2.Strengthened General-Purpose Bucket增強型通用鏟斗 Bucket teeth are reshaped as Super-V teeth for smooth penetration and higher production.Bushings are util

52、ized at both ends of a bucket pin to eliminate clearances, preventing jerky operation.鏟斗斗齒改為超級V 型齒，使鏟入平穩(wěn)、生產(chǎn)率提高。鏟斗銷軸兩端均使用襯套，以便消除間隙，防止急拉式作業(yè)。3.Strengthened H-Bucket for Heavy-Duty H型重型強化鏟斗 The heavy-duty bucket is reshaped, and bucket parts are strengthened to increase durability. 改進重型鏟斗，增強鏟斗零件，提高耐久性。7

53、.4.6Enhanced Operator Comfort 提高駕駛員舒適性The spacious cab is ergonomically designed with excellent visibility to reduce operator fatigue and burden.寬敞的駕駛室符合人機工程學(xué)設(shè)計，具有最佳的視野，減少了駕駛員工作疲勞與負(fù)荷。1. Excellent Visibility最佳的視野 The glass windows are widened for excellent visibility, especially improving right downw

54、ard view during travel and excavation.為獲得最佳視野加寬玻璃窗，特別是改善了行走和挖掘時右下方的視野。2. Ample Foot Space寬敞的足下空間 Foot space is expanded forward, and pedals are reshaped for pleasant operation.足下空間向前擴展，改進踏板形式保證愉快操作。3.Short-Stroke Levers 短行程操縱桿Fingertip control of short-stoke levers, with the help of armrests, allows

55、 long, continuous operation with less fatigue （30%reduction in lever control effort ）.短行程操縱桿的指尖控制在扶手幫助下能夠長時間進行無疲勞連續(xù)操作（操縱桿操作力減小30%）。4.Comfort-Designed Operator Seat設(shè)計舒適的駕駛員座椅 The operator seat is ergonomically designed for long-hour pleasant operation. The seatback iswidened to hold the operator secu

56、rely, and the headrest is reshaped. The operator seat is strengthened to reduce vibration and shocks, and increase durability.駕駛員座椅依照人機工程學(xué)原理設(shè)計，以便使駕駛員長時間愉快操作。加寬座椅靠背，使駕駛員操作安全穩(wěn)固，并且改進了座椅頭靠的形狀。對座椅進行增強以較小振動和沖擊，并提高耐久性。5. Fluid-Filled Elastic Mounts 充液彈性支座The cab rests on fluid-filled elastic mounts that ab

57、sorb shocks and vibration to enhance operator comfort.駕駛室安裝于充液彈性支座上，從而吸收了沖擊和振動，提高了駕駛員工作舒適性。6. Large Multilanguage, Multi Function Monitor大界面多語言多功能監(jiān)視器 7.Rear View Camera后視攝像頭 The large color LCD monitor, teamed up with the rear view camera (optionalon the counterweight, gives the operator unobstructe

58、d rearward view. This system enhances safety during swing and reversing.彩色大界面監(jiān)視器與配重上方的后視攝像頭（可選件）組合，為駕駛員提供了機械后方的無障礙視野。該系統(tǒng)提高了挖掘機回轉(zhuǎn)與倒車時的安全性。7.4.7Simplified Maintenance 維護簡單方便Focusing on simplified maintenance, including easy inspection, service and cleaning.維護保養(yǎng)簡單，其中包括方便的檢查、保養(yǎng)和清潔。1. Simplified Cleaning around Eng