October 30, 2020
The cone crusher is one of the most widely used mining machinery. With the development of the market, there have been a variety of cone crusher products at home and abroad, and the performance of different types of cone crusher is not the same.
At present, the spring cone crusher and hydraulic cone crusher are more commonly used in the market, and hydraulic cone crusher is divided into single cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher.
This paper mainly analyzes the differences and advantages and disadvantages of single cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher, hoping to help you choose the most suitable cone crusher.
The single cylinder hydraulic cone crusher and the multi-cylinder hydraulic cone crusher have differences in the main engine structure, components and wear-resistant parts. Besides, there are differences in the following aspects:
1. The adjustment mode of discharge port is different
When the single cylinder hydraulic cone crusher is in normal operation, the oil pump fills or drains the main shaft cylinder, making the main shaft move up or down (the main shaft floats up and down) to adjust the size of the discharge port. This kind of adjustment may lead to more difficulty in locking the outlet when crushing hard ore.
The multi-cylinder cone crusher adjusts the adjusting cap by means of hydraulic push hand or hydraulic motor, thus driving the adjusting ring to rotate in the supporting sleeve (the fixed cone screw rotates up and down ) to achieve the adjusting effect. The advantage of this kind of adjustment mode is that the outlet is easy to lock up.
2. The way of iron passage and cavity clearing is different
When passing the iron, the hydraulic oil of the single cylinder hydraulic cone crusher is injected into the accumulator, making the spindle fall down. After passing the iron, the accumulator will press the oil back and the single cylinder hydraulic cone crusher will operate normally. The single cylinder hydraulic cone crusher cavity is also used the hydraulic pimp.
When the foreign body cannot be crushing through the crushing chamber of the multi-cylinder hydraulic cone crusher or the multi-cylinder hydraulic cone crusher is overloaded for some reason, the hydraulic insurance system will keep the safety, then the ore discharge port increases and the foreign body is discharged from the crushing chamber. If the foreign body gets stuck in the ore discharge port, the cavity clearing system can be used to further increase the discharge port, so that the foreign body can be discharged from the crushing chamber. Under the action of the hydraulic system, the outlet is automatically reset and the machine returns to normal work.
3. Lubrication system
The single cylinder hydraulic cone crusher has two ways of oil inlet, one way is from the lower end of the spindle, lubricating the spherical bearing, spherical tile,frame bushing, main shaft bushing and then lubricating the bevel gears. The other way enters from the drive shaft end, lubricating the drive shaft bushing. And the two ways of oil is discharged from the same outlet.
4. Components that provide the crushing force
The single cylinder hydraulic cone crusher is similar to the spring cone crusher, therefore, the spindle and the moving cone are equivalent to the base support up, and the eccentric sleeve drives the spindle to provide crushing force.
The spindle of the multi-cylinder hydraulic cone crusher is short and thick, and its diameter can be designed to be large. It stands directly on the rack (rather than in the eccentric sleeve) to provide higher bearing capacity. The eccentric sleeve directly driver the moving cone to provide the crushing force.
5. Different applicable materials
When crushing soft ore and weathered ore, the advantages of the single cylinder hydraulic cone crusher are prominent, while in the crushing of hard and high hard ore, the performance of multi-cylinder hydraulic cone crusher is more outstanding.
For medium hard and above ore crushing, under the same specifications, the multi-cylinder cone crusher can produce more qualified products. Generally speaking, the higher the rock hardness, the greater the difference between single cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher operation effect.
The single cylinder hydraulic cone crusher has simple structure and reliable performance. One hydraulic cylinder, simple and compact structure, low failure rate, low production cost. The simpler the mechanical system structure, the higher reliability, the more stable the operation.
The top or side of the multi-cylinder hydraulic cone crusher can be disassembled for quick and convenient maintenance. All parts can be disassembled and maintained from the top or side, the moving cone and the top cone are easy to disassemble and install, no need to disassemble and install frame, fastening bolts, which makes daily replacement more convenient.
7. Comparison and analysis of advantages and disadvantages
(1) Advantages and disadvantages of single cylinder hydraulic cone crusher
The fuselage structure of the single cylinder hydraulic cone crusher is simpler than that of the multi-cylinder hydraulic cone crusher, and the parts are less and the design is more exquisite.
The single cylinder hydraulic cone crusher has simple structure and low manufacturing cost, so its price is lower than the multi-cylinder hydraulic cone crusher.
In the actual operation process, the single cylinder hydraulic cone crusher is easy to install and maintain. And from the technical level, the single cylinder hydraulic cone crusher has carried on the technical improvement to the sliding bearing, so the improved equipment can adapt to the higher speed and increased the swing speed of the spindle, so that the finished material specifications are more in line with the requirements. At the same time, the output is higher.
The biggest disadvantage of the single cylinder hydraulic cone crusher is that it only has one oil cylinder, so the crushing force is relatively small for many cylinders. When crushing some of the harder stone, it is recommended to choose the multi-cylinder hydraulic cone crusher.
(2) Advantages and disadvantages of multi-cylinder hydraulic cone crusher
Based on the traditional spring cone crusher, the multi-cylinder hydraulic cone crusher has been upgraded and improved in performance, and its structure is reasonable.
The multi-cylinder hydraulic cone crusher uses the multi-cylinder technology, so that the crusher is relatively large. Under the condition of ensuring the output standard, energy consumption has been controlled and more suitable for stone, especially suitable for stone hardness of not more than 300Mpa.
The multi-cylinder hydraulic cone crusher has a special crushing chamber design, which makes the productivity is greatly increased. Semi-automatic hydraulic adjustment of discharge port can effectively control the granularity of stone material, and the finished product material can meet its own requirements. So it is more economical and practical to use.
Good crusher manufacturers in the manufacture of multi-cylinder hydraulic cone crusher will use high strength overall casting, and has iron protection, which is safe and reliable. No matter how hard the quality of crushing equipment stone, the equipment performance is very stable and has long service life.
The multi-cylinder hydraulic cone crusher used the labyrinth seal structure, which can play the dust-proof effect. But if the factory is not experienced or manufacturing technology is not qualified, the labyrinth seal will also have dust into, which may cause the discharge port management difficulties.