Steering system

Steering system

Motor turning system: On the automobile uses for to change or restores its travel direction to

suppose the organization to be called the motor turning system specially. Automobile's steering

system

is

uses

for

to

change

the

automobile

travel

direction

and

to

maintain

the

automobile

straight line travel organization

Composes

(1)To change the control mechanism basically mainly by the steering wheel, the steering axle, the

steering tube column and so on to be

(2) Diverter becomes steering wheel's rotation steering arm's swinging or the rack axis straight

reciprocating

motion,

and

to

changes

the

control

force

to

carry

on

the

enlargement

the

organization.

The

diverter

fixes

generally

on

the

automobile

frame

or

the

automobile

body,

changes the control force after the diverter generally will also change the transmission direction.

(3)Changes the transmission system the strength which and the movement outputs the diverter

passes to the wheel (knuckle), about and causes the wheel to carry on the deflection according

to certain relations the organization.

Type

Crooked to energy difference, the steering system may divide into the machinery steering system

and the power steering system two broad headings crooked.

Mechanical

steering

system:

And

changes

the

transmission

system

by

the

diverter

to

be

composed.

Diverter:

By

the

steering

wheel,

the

steering

wheel

steering

axle,

changes

meshing

to

pay

(diverter) to be composed.

Changes

the

transmission

system:

By

drop

arm

(drop

arm),

drag

link,

drag

link

arm,

about

trapezoidal arm, steering knuckle tie rod, if a dry bulb joint composes.

Power

steering

system:

Changes

the

augmenter

constitution

by

mechanical

steering

system

Canada.

ical steering system

The mechanical steering system changes the energy by pilot's physical strength achievement, all

power transmission are the machinery. The mechanical steering system by changes the control

mechanism, the diverter and changes the transmission system three major part to be composed.

(1)

Changes control mechanism

Changes

the

control

mechanism

by

the

steering

wheel,

the

steering

axle,

the

steering

tube

column and so on to be composed, its function is rotates the pilot steering wheel's control force

to pass to the diverter.

(2)

Diverter

The

diverter

(also

often

is

called

steering

unit)

is

completes

from

the

rotary

motion

to

the

translation

(or

approximate

straightline

motion)

a

group

of

gear

mechanism,

simultaneously

is

also in the steering system speed reducer drive. At present the commonly used toothed wheel

rack type, follows round the world the crank to refer to sells the type, the worm bearing adjuster

crank to refer to sells the type, to follow round the world

- the tooth rack tooth fan type, the

worm bearing adjuster hoop type and so on. We mainly introduce the first several kinds.

1) Gear rack type diverter

The

gear

rack

type

diverter

divides

the

both

sides

output

type

and

among

(or

single

end)

the

output type two kinds

The

both

sides

output's

gear

rack

type

diverter,

changes

the

gear

shaft

as

the

transmission

vice-host moving parts and installs through the bearing in the diverter shell, its upper extreme

through

spline

and

universal

joint

sliding

yoke

and

steering

axle

connection.

With the

steering

gear meshing steering rack level arrangement, the both sides with change the steering knuckle

tie rod through a ball place to be connected. The spring presses through the briquetting the rack

depending in the gear, guarantees ceaseless meshing.

Spring's pretightening up force available adjustment thread plug adjustment. When rotates the

steering wheel, the diverter gear-driven, causes with it meshing rack along the end motion, thus

about causes the steering knuckle tie rod to lead about the knuckle to rotate, causes to change

the wheel deflection, thus realizes motor turning.

Middle output gear rack type diverter, its structure and principle of work and both sides output

gear rack type diverter basic same, the difference lies in it to change the steering knuckle tie rod

in steering rack's middle with the bolt with about to be connected. On single-ended output's gear

rack type diverter, a rack's end with changes the steering knuckle tie rod through the inside and

outside bracket to be connected.

2) Follows round the world- like the diverter

Follows round the world-like the diverter is one of present domestic and foreign application

most widespread structure patterns, generally has two-stage drive, the first level is screw rod nut

transmission, the second level is tooth rack tooth fan transmission.

In

order

to

reduce

between

the

steering

screw

steering

nut's

friction,

the

two's

thread

immediate

contact,

during

is

loaded

with

many

steel

balls,

realizes

the

rolling

friction.

On

the

steering screw and the nut processes the profiled outline is two section or three section of not

concentric circular arc composition approximate semicircle spiral groove. The two's spiral groove

can coordinate to form the approximate circular cross section the spiral tubular channel.

The nut side has two pair of through holes, may henceforth the vent plug enter the steel ball in

the helix channel. Outside the steering nut has two steel ball drive pipes, each drive pipe's both

sides insert the nut side separately in a pair of through hole. In the drive pipe has also packed the

steel

ball.

Thus,

in

two

drive

pipes

and

nut's

spiral

tubular

channels

combine

two

respectively

independent seals the steel ball

When the steering screw rotates, passes to the steering nut through the steel ball the strength,

the nut namely along the end motion. At the same time, friction couple function between the

screw

rod

and

the

nut

and

under

the

steel

ball,

all

steel

balls

then

rolls

in

the

spiral

tubular

channel, formation

respective seal flow channel internal recycling, will leave.

3)The worm bearing adjuster crank refers to sells the type diverter

The worm bearing adjuster crank refers to sells the type diverter's transmission vice-(by the

steering worm primarily moving parts, it is installs from the moving parts in the rocker arm shaft

crank nose refers to sells. When the steering worm rotates, refers to with it meshing sells namely

circles

the

rocker

arm

shaft

spool

thread

along

the

circular,

and

leads

the

rocker

arm

shaft

rotation.

(3)Changes the transmission system

Changes

the

transmission

system

the

function

is

the

strength

which

and

the

movement

outputs

the

diverter

passes

to

the

steering

axle

both

sides

the

knuckle,

causes

the

both

sides

wheering

wheel

deflection,

and

causes

two

wheering

wheel

deflection

angles

according

to