我国自卸车外文文献翻译、中英文翻译

3.0 设计吧 2023-02-13 65 4 36.5KB 7 页 10光币

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附录 A.外文文献原文

Chinese Mining Dump Truck

by Zhang Wensheng

1.GeneraI information of domesticmining dump truck sector

Since the first Chinese-made mining dump truck was made in 1 969,over two

decades have passed,during which,China’s mining dump truck industry has primarily

formed the capacity of producing 20154 ton mining dump trucks.At present,the main

manufacturers are as follows;Xiangtan Electric Manufacturing Group

Corp．Ltd．,North Hauler Limited Liability Company,Benxi Heavy．Duty Truck

Limited Liability Company.Changzhou Metallurgical Machinery Plant,Beijing Heavy

Duty Truck Plant and so on,and the technologies for mining dump trucks have been

introduced through multi-channels,such as the establishment of joint ventures and the

co-operation in the way of combining technology and trade．Mter digesting and

assimilating the technologies introduced,China is capable of producing mining dump

trucks with load capacity of 154,108,85,77,65,50,40（41～51）,32（31～35）,27

and 20 tons,of which,the annual output of 20 t and over is about 4 500units.

Now,about 11000 units of mining dump trucks are on service in domestic

construction projects,such as mines,electric stations,railways and so on,about 45000

of which are do．mestic-made,mainly including 13JZ3364 model with load capacity

of 20 tons（about 3 000 units）,BJZ 3480 model with load capacity of 27

tons（about 200 units）,3307 model with load capacity of 45 tons（about 600

units）and a small amount of mining dump trucks with load capacity of 77,85,108

and 154 tons respectively.

The batch-produced BJZ 3364 which was self designed in the 1 970’s based on

the similar Trucks abroad is still at the intemational levels from the late 1970’s to the

early 1980’s in terms of the basic structure and technical specifications．BJZ 3480

model truck,a localized one of RD 030 model truck introduced from British Aveling

Bedford．is at the international level of around the 1980’s.The 3307 and 3311 made

by Baotou North Truck MFG Co．Ltd．a Sino-American—British ioint venture

located in Baotou,nner Mongolia．are of the TEREX series products with a LCR of

about 64％．and with the key assemblies and parts out-sounced．So the

technicallevel of these two models takes the lead domestically and goes advanced in

the world．However, compared with the similar ones abroad,the home-made SF

3103 and SF 3150 models of 100 ton class motorized wheel mining dump trucks

remain poorer in quality,and their production is very small.

2.Introduction of Mining dump trucks

Mining dump trucks are mainly used in various mines and earth sites.Because of

their poor working conditions,low level road,and also frequent starting, braking and

steering,heavy load,the external loads are complex.At present,designers pay more

attention to make the strength and rigidity of the dump truck and their components to

meet various requirements,rarely consider their aerodynamic characteristics and

aerodynamic design.It is reported that there are about 9000 mining dump trucks in

China,general loads of them are more than 20 t,and fuel consumption and pollution

emissions have increased significantly.Due to the energy conservation and the

demand for environmental protection,it is necessary to improve the fuel economy of

dump trucks by reducing their aerodynamic drag.

Mining truck is an ideal conveyance in large mines for its high efficiency and

good economy,and tends to be larger.Now,the payload of main trucks abroad has been

up to 360 tons,but internal manufacturers have not produced mining trucks over 200

tons.Owing to large weight and high speed of trucks and more cuwe and slope in

mines,the system of steering,brake and hoisting must be reliable．Hydraulic power

steering,hydraulic hoisting and full hydraulic brake have been applied in mining

trucks．So the safety of trucks and production has been affected by hydraulic system

seriously.

3.Profile of key manufacturers Of mining dump trucks

Beijing Heavy Duty Truck Plant,with 1 800 employees,is one that can msss-

produce mining dump trucks with load capacity of 20 and 27 tons.Its leading

product,BJZ 3364 mining dump trucks taking the lion’S share in home market,are

working for more than 100 clients engaged in hydropower projects and small&

medium mines nationwide with its population of 3000 units．F0r example,in the

world-Famous Three Gorges of Changjiang River project site Alone,over 400 units of

BJZ3364 dump trucks are booming there.Its mining dump truck line includes BJZ

3364（with leaf spring）and BJZ 3364Q（with hydro-pneumatic spring

suspension）with the load capacity of 20 t,27 t,BJZ 3480 of 27 t,BJZ 5360GSS

nfining sprinkler,gallery operation transport truck,guniting vehicle and so on.

North Hauler Limited Liability Company （NHL）,a Sino-British-American

joint venture located in Baotou city of Inner Mongolia Au- tonomous Regions,has

over 400 people in its workforce.and a land area of 110000 m2.With complete sets of

equipment and processing facilities of heavy truck production line,the company is

capable of producing the TEREX series products of mining dump trucks and

articulated vehicles with load capacity of 2085 tons.The annual production program is

targeted for 300 units．The products are made in accordance with the design

drawings,technological process,quality standards and inspection specifications

introduced from TEREX Co.NHL persists in introducing the up-to-minute

technologies from TEREX Co.in a rolling way and keeping in step with TEREX’s

products．Meanwhile．the company has independently developed many new types

of vehicles such as springker,coal—hauler and concrete delivery truck.

Established in 1936,Xiangtan Electric Manufacturing Group Corp.Ltfl.has

become one of the largest industrial enterprises in the country,with an enroll of 13000

employees,over 4000 of whom are senior engineers or engineers.It covers a land area

about two million m2.There are 4125 units of various production equipment and

facilities.Thanks to its preponderance in fabrication of machines,electric motors and

electric facilities,the company has formed a higher capability of self -OE supplying

with the rate of the self—made parts up to 85 percent.The mining dump truck

category comprises giant motorized wheel dump trucks with load capacity of 108 t

and 154 t.Now,the needed tires,rims,pumps,valves,etc.are home bought;while the

main assemblies such as high—output engines and hydraulic transmission have to be

outsourced.

4．Moving towards enterprise conglomeration

Though China’s mining dump truck sector has developed greatly,it could not

buffer the thirst from the domestic mining dump truck market yet.Furthermore,the

sector lacks coordination among departments and regions.So,it is necessary to

accelerate the reform towards enterprise conglomeration,forming the superiority of

China’s mining dump truck industry in production scale;and making the macrocontrol

of domestic mining dump truck production in line with the development trend of the

markets home and abroad.

China has speeded up the introduction of mining dump truck technologies from

abroad in order to avoid detours and has set up some JVS and cooperative

enterprises.One of the urgent task confronted with us is to work at digesting and

assimilating the technologies already introduced,making full use of the existing

equipment and facilities（some of them are modem and updated both home and

abroad）owned by the dump truck manufacturers and suppliers with rational

allocation of resources and tapping of resource potential to be focused on.

There is every reason to believe that China’s mining dump truck sector wi ll have

a brighter prospect provided that it forms superiority of scale production,strengthens

the coordination among the departments and regions by means of setting up enterprise

group and seeks actively operative partners at home and abroad.

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摘要：

附录附录A.外文文献原文ChineseMiningDumpTruckbyZhangWensheng1.GeneraIinformationofdomesticminingdumptrucksectorSincethefirstChinese-mademiningdumptruckwasmadein1969,overtwodecadeshavepassed,duringwhich,China’sminingdumptruckindustryhasprimarilyformedthecapacityofproducing20154tonminingdumptrucks.Atpresent,them...

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