GOODYEAR机轮维护手册——Tire Care and Maintenance Manual

thurdn · 发表于 2011-6-3 13:09:40

非常实用的机轮维护手册。适用与GOODYEAR机轮。其中的轮胎损伤图例比AMM手册清晰。
BIAS PLY AIRCRAFT TIRE CONSTRUCTION
Bias aircraft tires feature a casing which is constructed of alternate layers of rubber coated ply cords
which extend around the beads and are at alternate angles substantially less than 90° to the center line
of the tread.
BIAS PLY AIRCRAFT TIRE CONSTRUCTION (CONT’D)
Glossary
Apex Strip The apex strip is a wedge of rubber affixed to the top of the bead bundle.
Bead Heel The bead heel is the outer bead edge that fits against the wheel flange.
Bead Toe The bead toe is the inner bead edge closest to the tire centerline.
Breakers Breakers are reinforcing plies of rubber coated fabric placed under the buffline cushion to
protect casing plies and strengthen and stabilize tread area. They are considered an integral
part of the casing construction.
Buff Line The buff line cushion is made of rubber compound to enhance the adhesion between
Cushion the tread reinforcing ply and the breakers or casing plies. This rubber layer is of sufficient
thickness to allow for the removal of the old tread when the tire is retreaded.
Casing Plies Plies are alternate layers of rubber-coated fabric (running at opposite angles to one another)
which provide the strength of the tire.
Chafer A chafer is a protective layer of rubber and/or fabric located between the casing plies and
wheel to minimize chafing.
Chines Also called deflectors, chines are circumferential protrusions that are molded into the
sidewall of some nose tires that deflect water sideways to help reduce excess water ingestion
into the engines.
Flippers These layers of rubberized fabric help anchor the bead wires to the casing and improve the
durability of the tire.
Grooves Circumferential recesses between the tread ribs.
Liner In tubeless tires, this inner layer of low permeability rubber acts as a built-in tube and
restricts gas from diffusing into the casing plies. For tube-type tires a thinner rubber liner is
used to prevent tube chafing against the inside ply.
Ply Casing plies are anchored by wrapping them around the wire beads, thus forming the ply
Turnups turnups.
Sidewall The sidewall is a protective layer of flexible, weather-resistant rubber covering the outer
casing ply, extending from tread edge to bead area.
Tread The tread is made of rubber, compounded for toughness, durability and wear resistance.
The tread pattern is designed in accordance with aircraft operational requirements.
The circumferential ribbed tread is widely used today to provide good traction under
varying runway conditions.
Tread Tread reinforcement is one or more layers of fabric that strengthen and stabilize the tread
Reinforcing area for high-speed operation. It also serves as a reference for the buffing process in
Ply retreadable tires.
Wire Beads The beads are hoops of high tensile strength steel wire which anchor the casing plies and
provide a firm mounting surface on the wheel.