装载机中英文翻译
英文
Loader
A loader is a type of construction equipment (engineering vehicle) machinery that is
primarily used to "load" material into another type of machinery (dump truck, conveyor belt,
rail-car, etc.).Loaders are used mainly for uploading materials into trucks, laying pipe,
clearing rubble, and digging. A loader is not the most efficient machine for digging as it
cannot dig very deep below the level of its wheels, like a backhoe can. Their deep bucket can
usually store about 3-6 cubic meters of earth. The front loader's bucket capacity is much
bigger than a bucket capacity of a backhoe loader. Loaders are not classified as earthmoving
machinery, as their primary purpose is other than earthmoving.
Unlike most bulldozers, most loaders are wheeled and not tracked, although track loaders
are common. They are successful where sharp edged materials in construction debris would
damage 2 rubber wheels, or where the ground is soft and muddy. Wheels provide better
mobility and speed and do not damage paved roads as much as tracks, but provide less
traction.
Unlike standard tractors fitted with a front bucket, many large loaders do not use
automotive steering mechanisms. Instead, they steer by a hydraulically actuated pivot point
set exactly between the front and rear axles. This is referred to as "articulated steering" and
allows the front axle to be solid, allowing it to carry greater weight. Articulated steering
provides better maneuverability for a given wheelbase. Since the front wheels and attachment
rotate on the same axis, the operator is able to "steer" his load in an arc after positioning the
machine, which can be useful.
The loader assembly may be a removable attachment or permanently mounted. Often the
bucket can be replaced with other devices or tools--for example, many can mount forks to lift
heavy pallets or shipping containers, and a hydraulically-opening "clamshell" bucket allows a
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loader to act as a light dozer or scraper.
In construction areas loaders are also used to transport building materials - such as bricks,
pipe, metal bars, and digging tools - over short distances.Loaders are also used for snow
removal, using their bucket or a snowbasket, but usually using a snowplow attachment. They
clear snow from streets, highways and parking lots. They sometimes load snow into dump
trucks for transport.
Front loaders gained popularity during the last two decades, especially in urban engineering
projects and small earthmoving works. Many engineering vehicle manufacturers offer a wide
range of loaders, the most notable are those of John Deere, Caterpillar, Case, Volvo, Komatsu
and Liebherr.
The following we will introduce Carter 938G Series II Wheel Loader.
Engine
The 938G II provides more power, excellent fuel economy, and reduced maintenance.
Turbocharged, ATAAC. Turbocharging packs dense air into the cylinders for more complete
combustion and lower emissions. Air-to-air aftercooling (ATAAC) provides a separate
cooling system for intake manifold air. The ATAAC system reduces smoke and emissions by
providing cooler inlet air for more efficient combustion.
Constant Net Horsepower. The 938G II’s electronic engine is integrated with an on-demand
cooling fan. The engine compensates for varying fan loads and provides constant net
horsepower, regardless of operating conditions. A consistent level of “working” horsepower
is provided and fuel consumption is reduced.
Oil Change Intervals. The engine oil change interval is increased to
500 hours (with CH-4 oil), reducing costs and downtime
Powerful Performance. The 3126B ATAAC engine delivers net power of 119 kW (160 hp),
and meets EPA Tier 2 emissions standards. Its advanced system keeps fuel at low pressure in
the fuel lines until it is injected into the cylinder. Fuel pressure is created hydraulically in
response to a signal from the ADEM III™ Electronic Control Module.
Electronic Control Module. The Advanced Diesel Engine Module (ADEM III) fuel system is
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a proprietary electronic control module, which provides improved engine response and fuel
efficiency,plus advanced diagnostics and reduced emissions. Altitude capability is increased
to 3050 meters (10,000 feet) without derating. ADEM III allows full electronic integration
of the engine and transmission for maximum power train efficiency.
Power Train
Advanced Caterpillar power train is reliable and fuel efficient.
Electronic Power Shift Transmission.The electronic power shift transmission with automatic
shift capability is a countershaft design built by Caterpillar. It is electronically controlled and
allows full power shifts and directional changes. Fully modulated gear shifts contribute to
operator comfort and increase component life.
Electronic Clutch Pressure Control (ECPC). Senses input from both the transmission and the
operator controls in the cab to modulate each individual clutch through a proportional
electro-hydraulic valve. This results in smoother gear changes and improved shift quality.
Energy is modulated into the clutches, resulting in longer clutch life.
Integrated Braking System. New for G Series II, IBS integrates downshifting and
transmission neutralization into the left-hand brake pedal. IBS provides smooth, optimized
transmission neutralizer performance with a greater range of adjustability. The Integrated
Braking System also lowers owning and operating costs by reducing axle oil temperatures,
which can extend service brake life.
Easy Service. Daily transmission oil level check is done from the ground through a well-
protected sight gauge.An oil sampling valve allows quick,clean access to the transmission for
S•O•SSM oil analysis.
Cooling System
New G Series II cooling package reduces radiator plugging and improves fuel efficiency.
Reverse Flow. Air enters through the rear grill and exits out the top opening and side hood
doors. Rear air flow picks up less debris from the ground, reducing plugging.
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英文LoaderAloaderisatypeofconstructionequipment(engineeringvehicle)machinerythatisprimarilyusedto"load"materialintoanothertypeofmachinery(dumptruck,conveyorbelt,rail-car,etc.).Loadersareusedmainlyforuploadingmaterialsintotrucks,layingpipe,clearingrubble,anddigging.Aloaderisnotthemostefficientmachinefo...
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作者：闻远设计
分类：课程设计课件资料
价格：15光币
属性：10 页
大小：31.19KB
格式：DOCX
时间：2023-09-29
