Cone crusher is currently 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 different. At present, spring cone crusher and hydraulic cone crusher are more commonly used, and hydraulic cone crusher is divided into single-cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher. This article mainly compares the difference and advantages and disadvantages of single-cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher. And hope to bring some help to your selection.
In addition to the structural differences of main unit, spare parts and wearing parts between the single-cylinder hydraulic cone crusher and the multi-cylinder hydraulic cone crusher. The main differences are as follows:
Different adjustment methods of discharge port
Single cylinder hydraulic cone crusher
During normal operation, the oil pump is used to fill or drain the oil cylinder of the main shaft to move the main shaft up or down (the main shaft floats up and down), and adjust the size of the discharge port. This adjustment method may cause the discharge port to be more difficult to lock when crushing hard ore.
Multi-cylinder hydraulic cone crusher
The adjustment cap is adjusted by a hydraulic pusher or a hydraulic motor to drive the adjustment ring to rotate in the support sleeve (the fixed cone screw rotates and moves up and down) to achieve the adjustment effect. The advantage of this adjustment method is that the discharge port is easy to lock.
Different ways to iron pass-through and clear cavity
Single cylinder hydraulic cone crusher
When iron pass-through, hydraulic oil is injected into the accumulator, and the main shaft falls; after iron pass-through, the accumulator presses the oil back, and the crusher operates normally. A hydraulic pump is also used when cleaning the cavity.
Multi-cylinder hydraulic cone crusher
When non-crushable material passes through the crushing cavity or the machine is overloaded for some reason, the hydraulic safety system realizes insurance, and the discharge port is enlarged, and the non-crushable material is discharged from the crushing cavity. If non-crushable material is stuck in the discharge port, the cavity cleaning system can be used to further enlarge the discharge port and discharge the non-crushable material out of the crushing cavity. Under the action of the hydraulic system, the discharge port is automatically reset and the machine resumes normal operation.
Lubrication system comparison
Single cylinder hydraulic cone crusher
Two oil inlets are filled with oil, one is from the lower end of the main shaft to lubricate spherical bearings, spherical bushes, frame bushings, main shaft bushings, and then large and small bevel gears; the other way enters from the end of the drive shaft to lubricate the drive shaft bushings, and finally The two oils are discharged from the same oil outlet.
Multi-cylinder hydraulic cone crusher
After entering the machine from the oil hole at the lower part of the machine and reaching the middle of the main shaft, it is divided into three branches: the inner and outer surface of the eccentric sleeve, the oil hole in the middle of the main shaft reaches the ball bearing, and passes through the channel to lubricate the small and small bevel gears; The oil enters the hole to lubricate the transmission bearing, and the oil returns through the oil return hole at the lower part of the pinion gear and the oil return hole on the dust cover.
Provide comparison of crushing power components
Single cylinder hydraulic cone crusher
The single-cylinder hydraulic cone crusher is similar to the spring cone crusher . Therefore, the main shaft and the movable cone are supported by the base, and the eccentric sleeve drives the main shaft to provide crushing force.
Multi-cylinder hydraulic cone crusher
The main shaft of the multi-cylinder hydraulic cone crusher is thick and short, and its diameter can be designed to be large. It stands directly on the frame (not in the eccentric sleeve) and provides high bearing capacity. The eccentric sleeve directly drives the moving cone to provide crushing force.
Different applicable materials
When crushing soft ore and weathered ore, the single-cylinder hydraulic cone crusher has the advantage of large throughput, and when crushing medium-hard and high-hard ore, the performance of multi-cylinder hydraulic cone crusher is more outstanding.
For the fine crushing of medium-hard and above ores, the multi-cylinder cone crusher can produce more qualified products under the same specifications. Generally speaking, the higher the rock hardness, the greater the difference between single-cylinder and multi-cylinder operations.
Use and maintenance
The single-cylinder cone crusher has simple structure and reliable performance: a hydraulic cylinder, simple and compact structure, low failure rate, low production cost (the simpler the mechanical system structure, the lower the failure rate, the higher the reliability, and the more stable the operation).
The top or side of the multi-cylinder cone crusher can be disassembled and assembled, so the maintenance is quick and convenient. All parts can be disassembled and maintained from the top or side. Replacement is more convenient.
Comparative analysis of advantages and disadvantages
Advantages and disadvantages of single-cylinder hydraulic cone crusher
Advantage 1:Compare to the multi-cylinder hydraulic cone crusher, the airframe structure of a single-cylinder hydraulic cone crusher is simpler with fewer parts, from the appearance, more attractive design.
Advantage 2:Due to the simple structure and low manufacturing cost, the price is also lower than that of the multi-cylinder hydraulic cone crusher.
Advantage 3:In the actual operation process, the equipment is easy to install and maintain. And from a technical perspective, the single-cylinder hydraulic cone crusher has made technical improvements to the sliding bearings. The improved equipment can adapt to higher speeds, increase the swing speed of the spindle, and make the specifications of the finished materials more in line with the requirements, and the capacity is also higher. Disadvantages: The biggest disadvantage of single-cylinder hydraulic cone crusher is that it has only one oil cylinder, so the crushing force is smaller than that of multi-cylinders. If you crush some hard stones, it is recommended to choose multi-cylinders.
Advantages and disadvantages of multi-cylinder hydraulic cone crusher
Advantage 1: The multi-cylinder hydraulic cone crusher has a reasonable structure by partially upgrading and improving from the traditional spring cone crusher. The equipment applies multi-cylinder hydraulic technology to make the crusher with a large crushing ratio. Under the condition of ensuring that the capacity reaches the standard, the energy consumption is also controlled. And it is suitable for many stones, especially suitable for crushing stones with a hardness of not more than 300Mpa.
Advantage 2: Multi-cylinder hydraulic has a special crushing cavity design, and the capacity is greatly improved. The semi-automatic hydraulic adjustment of the discharge opening can effectively control the size of the stone material, and the finished material can reach the specifications required by oneself. So it is more economical and practical to use.
Advantage 3: When a good crusher manufacturer manufactures a multi-cylinder hydraulic cone crusher , it will use a high-strength monolithic cast casing, and it is protected by iron, which is safe and reliable. The performance of the equipment is very stable regardless of how hard the stone material is crushed. And the service life is long.
Disadvantages: The multi-cylinder hydraulic cone crusher uses a labyrinth-type sealing structure, which can prevent dust, but the bad labyrinth-type sealing property will also have dust ingress by a manufacturer with inexperience or poor manufacturing technology. If the stone with more dust is crushed, it may be difficult to adjust the discharge outlet. So it is a key point to choose a manufacturer with a good brand reputation.
