How to choose between single-cylinder and multi-cylinder hydraulic cone crusher

Cone crusher is one of the widely used mining machinery and equipment, with the development of the market, there are many types of products at home and abroad, and the performance of each type of crusher is not the same. Currently more commonly used is the spring cone crusher and hydraulic cone crusher, and hydraulic cone crusher is divided into single-cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher. This article mainly compares the difference between single-cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher and the advantages and disadvantages, hope to give you some help in selection.

Single-cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher in addition to the host structure, components and wear parts of these structural differences, the main differences are also reflected in the following aspects:

1. Different ways of adjusting the discharge opening

During normal operation, the oil pump injects or discharges oil into the main shaft cylinder, so that the main shaft moves up or down (the main shaft floats up and down) to adjust the size of the discharge opening. This way of adjustment may cause the discharge opening to be more difficult to lock when crushing hard ores.

Through the hydraulic pusher or hydraulic motor, adjust the adjusting cap, which drives the adjusting ring to rotate in the support sleeve (the fixed cone screw rotates up and down) to achieve the adjustment effect. The advantage of this adjustment method is that the discharge port is easy to lock.

2. Different ways of passing iron and clearing cavity

When passing iron, the hydraulic oil is injected into the accumulator, and the main shaft falls down; after passing iron, the accumulator presses the oil back, and the crusher operates normally. The hydraulic pump is also used when clearing the cavity.

When unbreakable foreign matter passes through the crushing cavity or the machine is overloaded for some reason, the hydraulic insurance system realizes the insurance, the discharge opening increases, and the foreign matter is discharged from the crushing cavity. If the foreign matter is stuck in the discharge opening, the clearing system can be used to make the discharge opening increase further, so that the foreign matter can be discharged from the crushing cavity. Under the action of the hydraulic system, the discharge opening is automatically reset and the machine returns to normal operation.

3.Comparison of lubrication system

Two oil inlet injection, one way from the lower end of the spindle, lubrication of spherical bearings, spherical tile, frame bushings, spindle bushings, and then lubricate the large and small bevel gears;

The other way enters from the end of the drive shaft to lubricate the bushing of the drive shaft, and finally the two ways of oil are discharged from the same outlet.

One by the lower part of the machine oil holes into the machine, after reaching the middle of the spindle, and then divided into three branches: eccentric bushings inside and outside the surface, the middle of the spindle oil holes to reach the ball bearings, through the orifice lubrication of large and small bevel gears;

The other one is fed into the oil by the hole on the drive shaft frame to lubricate the drive bearing, and its oil return is also through the oil return hole on the lower part of the bevel gear and the oil return hole on the dust cover.

4. Comparison of components providing crushing force

Single-cylinder hydraulic cone crusher is similar to spring cone crusher, therefore, the main shaft and moving cone are equivalent to the base to support up, and the eccentric sleeve drives the main shaft to provide crushing force.

Multi-cylinder Hydraulic Cone Crusher's main shaft is thick and short, and its diameter can be designed to be very large, standing directly on the frame (instead of in the eccentric sleeve), which provides higher bearing capacity, and the eccentric sleeve directly drives the moving cone to provide crushing force.

5. Applicable materials are different

When crushing soft ores and weathered ores, the single-cylinder hydraulic cone crusher has outstanding advantages of large throughput, while the multi-cylinder hydraulic cone crusher has more outstanding performance in crushing medium-hard and high-hard ores.

For the fine crushing of medium-hard and above ores, under the same specification, multi-cylinder cone crusher can produce more qualified products. Generally speaking, the higher the rock hardness, the greater the difference between single-cylinder and multi-cylinder operation effect.

6.Maintenance

The structure of single-cylinder cone breaker is simple and reliable: one hydraulic cylinder, simple and compact structure, low failure rate and low production cost (the simpler the structure of the mechanical system, the lower the failure rate, the higher the reliability and the more stable the operation).

The top or side of the multi-cylinder cone breaker can be disassembled and assembled, and the maintenance is fast and convenient: all the parts can be disassembled and maintained from the top or side, and the moving cone and top cone are easy to disassemble without disassembling and assembling the frame and fastening bolts, which makes the daily replacement more convenient.

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