Bulldozer
The bulldozer is a very powerful crawler that is
equipped with a blade. The term bulldozer is often
used to mean any type of heavy machinery, although
the term actually refers to a tractor that is fitted
with a dozer blade.
Often times, bulldozers are large and extremely
powerful tracked vehicles. The tracks give them
amazing ground mobility and hold through very rough
terrain. Wide tracks on the other hand, help to
distribute the weight of the dozer over large areas,
therefore preventing it from sinking into sandy or
muddy ground.
Bulldozers have great ground hold and a torque
divider that's designed to convert the power of the
engine into dragging ability, which allows it to
use its own weight to push heavy objects and even
remove things from the ground. Take the Caterpillar
D9 for example, it can easily tow tanks that weight
more than 70 tons. Due to these attributes,
bulldozers are used to clear obstacles, shrubbery,
and remains of structures and buildings.
The blade
The blade on a bulldozer is the heavy piece of
metal plate that is installed on the front. The
blade pushes things around. Normally, the blade
comes in 3 varieties:
1. A straight blade that is short and has
no lateral curve, no side wings, and can be used
only for fine grading.
2. A universal blade, or U blade, which is
tall and very curved, and features large side wings
to carry more material around.
3. A combination blade that is shorter,
offers less curvature, and smaller side wings.
Modifications
Over time, bulldozers have been modified to evolve
into new machines that are capable of things the
original bulldozers weren't. A good example is
that loader tractors were created by removing the
blade and substituting a large volume bucket
and hydraulic arms which will raise and lower the
bucket, therefore making it useful for
scooping
up the earth and loading it into trucks.
Other modifications to the original bulldozer
include making it smaller to where it can operate
in small working areas where movement is very
limited, such as mining caves and tunnels. Very
small bulldozers are known as calfdozers.
History
The first types of bulldozers were adapted from
farm tractors that were used to plough fields. In
order to dig canals, raise earth dams, and partake
in earthmoving jobs, the tractors were equipped
with a thick metal plate in the front. Later
on, this thick metal plate earned the name blade.
The blade of the bulldozer peels layers of soil
and pushes it forward as the tractor advances.
The blade is the heart and soul of the bulldozer,
as it was the first accessory to make full use
for excavation type jobs.
As the years went by, when engineers needed
equipment to complete larger jobs, companies such
as CAT, Komatsu, John Deere, Case, and JCB started
to manufacture large tracked earthmoving equipment.
They were very loud, very large, and very powerful
and therefore earned the nickname "bulldozer".
Over the years, the bulldozers got bigger, more
powerful, and even more sophisticated. The
important improvements include better engines,
more reliable drive trains, better tracks, and
even hydraulic arms that will enable more precise
manipulation of the blade and automated controls.
As an added option, bulldozers can come equipped
with a rear ripping claw to break up pavement or
loosen rocky soil.
The best known manufacturer of bulldozer is CAT,
which has earned a vast reputation for making
tough and durable, yet reliable machines. Even
though the bulldozer started off a modified farm
tractor, it rapidly became one of the most useful
pieces of equipment with excavating and construction.
(word count 605)
Terms of Use for this Private Label Article
Possibly Related PLR Articles:
Benefits Of Breast Feeding
Once you've given birth, breast feeding is the single
most important thing you can do to protect your baby
and help to promote good health. Best of all, breast
feeding is free.
Along with saving you money on HMR (Human Milk
...read more
Gas Trucks Versus Diesel Trucks
If you plan to use your truck like a car, desiring
quick, quiet acceleration and rarely ever haul a
heavy load and don't plan to it for a long time,
you may want a gasoline engine. Gas engines run
smoother, fuel is easier to find, and gas...read more
How to calculate your lease payment
Understanding how to calculate your monthly lease payment makes it easier
for you to make an informed decision. Yet, most of us shy away from the
"complicated" math on our lease contract, leaving it up to the dealer to
do the payment...read more
A Look At Flossing
Along with brushing your teeth, you should also be flossing on a daily basis. Flossing will remove plaque and debris in areas that your toothbrush isn't able to reach. A buildup of plaque can lead to gum disease or tooth decay, which is why...read more
Dealing With Cracked Teeth
Also known as the third set of molars, the wisdom teeth are the last set of teeth in the mouth to erupt, which normally happens around the ages of 17 - 25. For many years, there has been a lot of controversy as to the need to remove these teeth. If...read more
Some Services Offered by Delta Air Freight
Delta Air freight is one of the leading companies in the cargo industry today. They offer many services that enable people to acquire goods or send their goods from anywhere and to anywhere in the world. Let's face it: that kind of service is in...read more
Camera Bags and Other Equipments for Underwater Photography
Scuba diving is one of the most rewarding hobby or profession that you can ever have. As a hobby, scuba diving is very enjoyable. It is a great way to meet other people as well as take a look at one of nature's seldom seen environment.
You have...read more
How to Darn Lace for Bathroom Accessories
Lace makes attractive material no matter where you add the designs. If you have already made decorative towels, you are ready to add your lace and serger edges. If you have not stitched your decorative towels, you will need to learn the steps to get...read more
HOW TO MAKE MONEY WITH YOUR HOBBY
Millions of people all over the world collect stamps as a hobby,
and the number is growing every day.
It is indeed an exciting and rewarding hobby, and it can also be
extremely profitable.
The price of stamps vary with supply and...read more
Computer Consultant
Vital Information
-------------------------------------------------------------------------------
Start-up Investment
Low - $0 (consulting for existing clients)
High - $5,000 (setting up an office and advertising)
...read more