【正文】 The adoption of stamping box relieves the weight and raise the capabilities of stiffness and loading. The manoeuvring system is mechanical system: it adopts the nondriving sure round front axle, the turn jug is double piston rod affect jug 。因此，國內(nèi)的挖掘裝載機應開發(fā)高質(zhì)量、多功能、多產(chǎn)品、多規(guī)格的系列產(chǎn)品，并加強基礎元件 的生產(chǎn)，尤其是提高液壓元件的質(zhì)量以達到在滿足產(chǎn)品可靠性的前提下，降低產(chǎn)品成本，并提高產(chǎn)品的售后服務水平。除了近年從國外引進的一些產(chǎn)品，國內(nèi)的部分挖掘裝載機產(chǎn)品的性能還在國際 20 世紀九十年代水平，早期故障率較高，還不能完全滿足修筑公路的要求。國外進口、國內(nèi)代理型：如 JCB 的 2CX/3CX/4CX； VOLVO 的 BL60/BL71； CASE 的 580/590 等目前都有 4 代理。車架采用整體焊接式結構，具有剛性好，強度高的特點。這樣大大減少了整機在行進和轉移時的長度尺寸，提高了機動性，使得機器可以在狹小的轉移和作業(yè)；整機重心分布也更合理，有利于機器的穩(wěn)定性。低溫啟動性能好，特別適合北方地區(qū)。由于這兩款機型采用的是變量系統(tǒng)，因此對系統(tǒng)的清潔度及元件的可靠性要求較高。帶有免維護的濕式制動器，大大提高了行車的安全性和可靠性。目前該產(chǎn)品年產(chǎn)量大約在 400 太左右。由于沒有側移架，整機造價相應降低。挖掘裝載機主要用于城市和農(nóng)村的公路建設及養(yǎng)護、電纜鋪設、電力和機場工程、市政建設、農(nóng)田水利建設、農(nóng)村住宅建設、開山取石以及各種小型建筑隊所從事的個中建筑施工工程。“兩頭忙”屬于小型多功能工程機械的一種，一般在大工程完成后的小工程中使用。缺點是收斗時鏟斗懸掛在車后部，外型尺寸長，機車處于運輸和裝載狀態(tài)時，穩(wěn)定差，對裝載和運輸有一定影響，此種機型功能重點在挖掘方面，以美國生產(chǎn)居多。從我國小型多功能挖裝機械從無到有的發(fā)展歷史看，我國挖掘裝載機一直處于較為落后的狀態(tài)，其發(fā)展速度緩慢。帶差速鎖 ，提高了整車的牽引性能。 HACH995E 系列挖掘裝載機： 發(fā)動機：配備先進的渦輪增壓柴油發(fā)動機，額定功率達到 95 匹馬力，在 1500 轉 /分鐘的轉速下達到 384 牛米的扭矩，核心關鍵部件采用進口的世界名牌產(chǎn)品，可靠性更高。 液壓系統(tǒng)：該機采用了原裝德國力士樂的泵和操縱閥。反鏟裝置操作機構為機械式連桿操縱，操縱靈活方便。支腿為 H 型直腿，和車架連為一體，驅動橋的制動采用液壓鉗盤式，液壓操縱具有制動快速可靠的優(yōu)點。 （ 3） 國內(nèi)生產(chǎn)企業(yè)：國內(nèi)生產(chǎn)企業(yè)有十余家，其產(chǎn)品為低檔的挖掘裝載機。挖掘 裝載機基礎部件質(zhì)量較差、配套件質(zhì)量不夠硬。 5 EXCAVATES THE CAR LOADER DOMESTIC PRESENT SITUATION AND THE MARKET DEVELOPMENT ANALYSIS The loader digger is so called “two favour”. Because it has special structure, loads device being the head and the equipment for the excavation behind. in the workplace , you need to turn the chair, pleting the change from loader to the excavator loader digger is mainly used for the highway construction and protect of the city and village, the electric cable build, electric power and airport engineering, municipal services construction, farmland irrigation construction, village residence construction, opening mountain to take stone and various small scaled and multifunction engineering machine, generally used in the small project after the pletion of the big ones. FIRST: A CLASSIFICATION OF THE LOADERDIGGER T he loader digger is so called “two favour” having two kinds of funcitions of lading and scooping out in the meantime. The classifications are as fallows ONE: from the structure According to the structure, loader diggers have two kinds of forms: one is with oblique tones move frame, the dinging device can be moved with side, which is easy to work in the special place, the center of gravity is lower when it transports. It is advantageous to loading and transporting. The weakness is: because of the restriction of the structure, the ground jack usually adopts vertical leg. The supporting point is within the wheel edge, the distance of the two supporting point is relatively small. While scooping the whole machine’s stability is bad. ( especially the scooping device moves to one side). The functional main point of this kind of machine is in the aspects of loading, producing more in Europe 。the rear axle is the transmission, adopting the bipole deceleration structure .The Drive motor is equipped on the hull of the main decelerator, moved by spiral taper gear, the roundside decelerator is the plaary gear system, the stiffness of the whole structure is good ,output speed is 9 steady .Between the main decelerator and the effect of semi axle when the axle housing is working in the process of distortion .The Running system adopts the static hydraulic pressure transportation. The truck frame adopts a whole weld type structure, having the characteristics of good rigidity and great strength.. The ground jack is Htype vertical leg, connected with the truck frame into a integral .The drive of transmission adopts hydraulic pincer tray type ,the advantage of the hydraulic manipulation is celerity and reliability. Applies the brake in the vehicle for the drum central brake, manoeuvring mechanically. The antispade of the cab room is integral lar