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subject: Jaw Crusher working principle [print this page]

Compound machine is the row of stone size greater than three millimeters of content over 50%

of the total emission feeding amount of crushing machinery. Crusher operations often by feeding and nesting

into coarse grain size of the broken, broken, and broken bits. Gravel equipment commonly

used jaw crusher, jaw crusher, impact crusher, impact crusher, compound crusher, single-

stage hammer crusher, vertical crusher, gyratory crusher, cone crusher machine, roll

crusher, double roll crusher and so are several.

Jaw Crusher jaw plates is the use of two compression and bending on the role of materials,

rough or broken pieces of various hardness of the material in the crushing machinery. The

broken body from the fixed jaw plate and movable jaw plates, jaw plates close to the time

when the two materials Jibei broken left jaw when the two less than the discharge opening of

the material discharged from the bottom block. It's crushing action is carried out

intermittently. This crusher due to simple structure, reliable and hard materials can be

broken, etc. and is widely used in mineral processing, construction materials, silicate and

ceramic industries.

Twenty of the 20th century to 80 years, 800 tons of material per hour, a large broken jaw

crusher feed size has reached about 1800 mm. Commonly used jaw crusher with elbow board and

two single brackets. The former moving jaw at work only for simple circular swing, so called

simple swing jaw crusher; the latter also for the arc swing up and down movement, so called

swing jaw crusher complex. Jaw Crusher is widely used in mining, smelting, building

material, highway, railway, water conservancy and chemical industry and many other sectors,

not more than 320 MPa breaking strength of various materials.

Single elbow plate. Mobile

Jaw Crusher jaw plates up and down

movement to promote the role of nesting, and travel is greater than the upper level of the

lower part of bulk materials easily broken, so the broken plate efficiency is higher than

your elbows. The disadvantage is that jaw plate wear faster, and the materials have been

crushed leaving the phenomenon of increased energy consumption. In order to protect

important parts of the machine is not damaged due to overload, often the simple shape, size,

smaller board design for the weak link in the elbow, making it the first overload of the

machine deformation or fracture.

In addition, to meet the size requirements of different discharge and compensation jaw

plate wear and tear, but also the addition of discharge opening adjustment device, usually

in the seat and rear rack bracket placed in between the pads, or wedge adjustment. But to

avoid damage due to replace the broken parts to affect production, but also can be used to

achieve the insurance and the hydraulic adjustment device. Some jaw crusher is also directly

driven by hydraulic drive movable jaw plate, material crushing action to complete. These two

types of hydraulic transmission equipment jaw crusher, often referred to as the hydraulic

jaw crusher.

Gyrating crusher cone crusher is the use of cone cavity within the shell of the cycle

exercise, have squeezed the material, splitting and bending, crushing all kinds of hardness

of ore or rock crushing machinery. Broken cone with the top of the spindle bearing bush in

the central beam, the lower end of the eccentric sleeve is placed in the hole. Shaft

rotation, broken cone around the center line for the eccentric cycle exercise machine of its

crushing action is carried out continuously, so efficiency than jaw crusher. To the early

70s, large gyratory crusher has been able to handle the material per hour, 5,000 tons, the

largest feeding up to 2,000 mm in diameter.

Gyratory Crusher two ways to achieve the adjustment of discharge opening and overload

insurance: First, use mechanical means to adjust the top of the spindle nut, rotate

adjusting nut, cone crusher can fall or rise, along with changes to the nesting population

bigger or smaller, overloaded, by cutting off the pin on the drive pulley to achieve

insurance; the second is the use of hydraulic methods. Hydraulic Gyratory Crusher, the

spindle is located on the plunger in the hydraulic cylinder, change the volume of hydraulic

oil under the plunger can change the location of the upper and lower crushing cone, thereby

changing the size of discharge opening. Overloading, the spindle downward pressure, forcing

the plunger into the hydraulic oil under the accumulator in the hydraulic system, so that

subsequently broken down in order to increase cone discharge opening, the discharge of

materials into the crushing chamber with a non-broken materials (iron, wood, etc.) in order

to achieve insurance.

Jaw Crusher working principle

By: Jordan shu

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