The roll crusher working principle and structural characteristics

One, also called the roll crusher double roll crusher or a roll crusher, the machine working principle is to make the material falls between the rolls, roll in the opposite

direction of the rotation of two role, was the machine to obtain the required granularity of the material .

Second, the structural characteristics: complete specifications, structural characteristics vary, depending on the model, designed by Red gear unit and chain drives. The main

structure of the gear transmission with a fixed roller, active roll shaft, the body, chassis, cover, housing and other parts of the gear set long

Into the machine powered by an electric motor on the sheave outgoing, and then through a pair of intermediate reduction gear, the fixing roller rotates, and then by means of a

fixed roll the other end of the pair of long pinions, driving the movable roll, two rolls to a relative movement of the squeeze press materials.

1, the fixed roll rolls and events: part of the roll crusher is the main part of the shaft, wheel housing, conical, rolling, gear, long pinions, the bearing cap, and the bearing

and other parts. Fixed roll and roll axis activity, followed by two rounds are bonded shell, tires mounted

In the wheel housing on one end with a long shaft gear, fixed the other end of the roll with a cylindrical gears, rollers on both sides of single row tapered roller bearings

plus. Work roll is responsible for the major parts broken surface of the groove surface are two fixed according to the use, because the roll directly with

Material contact is often replaceable wearing parts. So tire material used ZG50Mn2 after quenching and tempering heat treatment, has a strong, durable, and easy disassembly.

2, the active devices: mobile bearing side with movable means, when the machine is not in operation if the crushing equipment of the metal object or accidentally fall into the machine, and

its size can not be in the gap between two rolls by, does not result in damage to the machine, so loaded with activities

Set, the principle is the active bearings move backward, so that can not be broken objects or metal through to adapt to this situation from happening. Activities device mainly

with nuts, bolts, enhance deed block, rear, seat bearings, springs and plates and other components. The active bearing frame on the bottom shelf,

Activity bearings can slide back and forth along the chassis, rear end of the active spring loaded bearing holder, the spring force required in the assembly apparatus to be

protected, when it comes to the material can not be broken, but the pass when the roll gap, the pressure roller growth, forcing the spring compression, so stick to rolling

activities

Away from their original position, so that the roll gap to expand, so the material can not be broken through. Activities device bearing frame moves adjusted stroke must be noted

that the gap between the rolls tie increased to the maximum, and a pair of long gear must ensure that the teeth together to prevent shedding.

3, the drive shaft: shaft is equipped with V-belt and pinion gear on both sides of two bearings.

4, Chassis: Chassis made by the steel and channel a metal structure, which has six screw holes can be submitted on the basis of fixed chassis, two feet on the drive shaft

bearing and fixed roll bar bearing body 2 are bolted to the bottom shelf, activity bearing body roll on two feet on the bottom shelf

Before and after the event can not fixed on the bottom shelf, in order to adjust.

5, the body: the body by the angle and the steel plate, which is fixed to the chassis, the two face tie rollers form a closed shape, material block is not used to prevent

crushing, that is, from both sides of the roll bar out of the phenomenon of occurs, during periodic inspection and repair, this part can be removed.

6, long gear housing: Long gear housing with steel and angle steel welded, bolted to the chassis.

7, the main structure of the chain drive are: chassis, fixed roll bar, roll bar events, wheel housing, support bearings and adjusting devices and other components. Two roller

shells flat bar keyed to the drive shaft of the two shaft ends of the bearing frame has two supported and fixed to the machine, crushing roll bar

By axle wheel shell, composed roll bar, bar roller shell with 6 hook bolt and nuts together, because the roll directly in contact with the ore, it is necessary to frequently

replace wearing parts, so a wear resistance than ZG50Mn2 made of good material, the motor will power through V-belt pulleys

Transmitted to the spindle, the spindle with the other end of the chain, then through a pair of sprockets drive, drives the driven wheel, so that the two crushing rollers do

opposite bar rotation, because of the material and the friction between the roller bar, rotatable tie bar roll to the material involved in the two spaces formed by rollers, and

gradually

Is crushed, the crushed material in gravity discharge from the feeder breaker, the crusher when the material does not fall across the machine, bar roll shell outwardly by action of the

spring automatically moves the bar increases the gap between the rolls , to protect the machine from damage.