How the cone crusher works

According to the shape of the crushing chamber, the cone crusher is divided into standard type (used for medium crushing), intermediate type (for medium fine crushing) and short head type. Among the three types, the standard type and short head type are the most widely used.

Working principle (¢ 2200 cone crusher)

The rotary motion of the motor is transmitted through the cross-elastic coupling, the drive shaft and the bevel gear pair to the eccentric bushing, which rotates around the center line of the crusher. When the eccentric shaft rotates, the crushing cone (moving cone) supported on the spherical bearing bush makes an O-shaped swing around the fixed point, so that the ore is continuously crushed and bent in the crushing chamber. The ore crushed by the previous process falls from the supply tank supported on the frame to the distribution tray, thereby uniformly severing the ore from the lower part of the cone in the space surrounding the fracture cone. The space between the connecting frame and the ribs of the central sleeve falls off the belt conveyor under the crusher.

First, the construction

Motor, coupling, drive shaft, small bevel gear, large bevel gear, spring, frame, support ring, push cylinder, adjusting ring, dust cover, lining, feeding plate, feeding box, main shaft, lining Plate, crushing cone, lock nut, locking piston, spherical bearing bush, spherical bearing seat, spherical collar (dust ring), annular groove, rib plate, center sleeve, straight copper sleeve, thrust bearing, frame Lower cover, oil inlet hole, eccentric copper sleeve, eccentric bushing, oil drain hole.

Second, the working organization

A fixed cone and a fixed cone (adjustment ring) containing manganese steel liner plate (cone liner, also called crushing wall) of the composition. The cone of the moving cone is press-fitted on the main shaft, and the lower end of the main shaft is inserted into the taper hole of the eccentric bushing, and a bronze sleeve is arranged in the shaft hole. When the eccentric bushing rotates, the moving cone is driven to perform the swivel motion. In order to ensure the requirement of the movable cone to perform the swing motion, the lower surface of the moving cone is made spherical and supported on the spherical tile. The spherical bearing bears the full weight of the movable cone and the main shaft.

Clearance of cone crusher bushing

Third, the safety device

The spring cone crusher uses the safety spring around the body to achieve overload protection. When the crushing chamber enters the non-crushed material. The support ring and the adjustment ring supported on the spring are forced to lift upward to compress the spring, thereby increasing the gap (discharge port) between the movable cone and the fixed cone and simultaneously discharging the non-crushed object. The support ring and the adjustment ring then return to their normal state of action under the action of the spring. Therefore, the amount of spring compression must be locked according to the following parameters.

Spring working height

Fourth, water seal dustproof device

It consists of a water tank, a drain groove, a retaining ring, an annular ring and a retaining ring. The water enters the water tank from the inlet pipe, overflows the drain groove, and is discharged through the drain pipe. Since the annular ring is inserted in the water tank, the dust must not enter the inside of the machine, but is blocked by the annular ring and falls into the water, and is discharged to the drain groove. The retaining ring prevents the water splashed by the annular ring from splashing into the spherical tile, and the gap between the retaining ring and the annular ring is only 2-4 mm, which can prevent a part of the dust from entering the water tank and improve the water sealing effect.

Five, transmission mechanism

The motor, the cross-elastic coupling, the horizontal shaft, the large and small bevel gears, the eccentric shaft, the eccentric sleeve, the main shaft, etc., when the motor drives the horizontal shaft to make a rotary motion, the eccentric sleeve is rotated, and the spindle in the eccentric sleeve is also driven. And the moving cone is rotated around the center of the crusher.

Gear meshing clearance

Sixth, lubrication system

It consists of gear oil pump, motor, filter, cooler, pipeline and instrument of thin oil station. Thin oil is mainly used to lubricate the eccentric bushing of transmission mechanism, support shaft thrust bearing and spherical tile.

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