The hydraulic cone crusher is the most widely used type of crushing equipment in the crushing industry and is a very popular machine. This article mainly introduces what is hydraulic cone crusher, the working principle of hydraulic cylinder crusher, the classification of hydraulic cone crusher and the repair and maintenance of hydraulic cone crusher.
What is a hydraulic cone crusher?
The hydraulic cone crusher is developed with the development of hydraulic technology, in order to promote the use of hydraulic pressure to adjust the discharge port and achieve overload protection in the cone crusher. The first hydraulic cone crusher was first produced in 1948. After that, with continuous improvement and improvement, it quickly became popular in the market. Hydraulic cone crusher has the advantages of simple structure, low manufacturing cost, high production capacity, easy maintenance, excellent hydraulic adjustment and overload protection performance, and easy to realize automatic operation.
How does a hydraulic cone crusher work?
During the operation of the hydraulic cone crusher, the rotation of the motor drives the pulley or the coupling, and the transmission shaft and the eccentric shaft of the cone under the axis line do periodic swing motion. After the material enters the crushing cavity from the feeding port, it is crushed by the mutual impact of the eccentric shaft and the rolling mortar wall, grinding, and rubbing.
The hydraulic insurance system can lift up the support sleeve and the fixed cone through hydraulic pressure when the machine has an iron failure or the material is stuck in the crushing cavity, so as to eliminate the things that cause the failure, and play a good insurance role at the same time. , but also greatly reduce the maintenance rate and improve production efficiency.
Classification of hydraulic cone crushers?
Hydraulic cone crushers can be divided into multi-cylinder hydraulic cone crushers and single-cylinder hydraulic cone crushers according to the distinction of providing hydraulic systems.
Multi-cylinder hydraulic
The multi-cylinder hydraulic cone crusher is a high-energy cone crusher with the world’s advanced level. This machine replaces the traditional single-particle crushing principle by using a special crushing cavity designed by the principle of intergranular lamination and a matching speed. Selective crushing of materials with uniform crushing particle size.
The two-way iron-passing release hydraulic cylinder can make the iron blocks pass through the crushing cavity smoothly, and in the event of iron-passing and instantaneous material blocking the machine, it can be hydraulically jacked up and automatically discharged, avoiding the need for the spring cone crusher to be shut down for maintenance. operate. The crushing chamber adopts high-performance non-contact labyrinth seals, which improves the reliability of blocking dust, reduces iron pollution and equipment wear cycle, and the unique lubricating oil system carried by the machine greatly improves the use of the machine. life.
Single cylinder
The single-cylinder hydraulic cone crusher is a relatively new hydraulic cone crusher in recent years. This type of crusher is based on the multi-cylinder hydraulic cone crusher and combines the principle of material layer crushing and static pressure theory. Another important breakthrough. The crushing cavity of the single-cylinder hydraulic cone crusher is divided into four cavity types according to the requirements of crushing granularity, which are medium crushing, medium-fine crushing, fine crushing and extra-fine crushing.
It is suitable for crushing ores and rocks such as iron ore, non-ferrous metal ore, granite, limestone, quartzite, sandstone, cobblestone, and is widely used in metal mines, metallurgical industry, chemical industry, construction industry, cement industry and sand and gravel industry.
Advantages of hydraulic cone crusher?
- Correct choice of crushing chamber for the material to be crushed
- Feeding particle size ratio is appropriate
- Uniform feed distribution within 360 degrees of the crushing chamber
- Has automatic control
- The discharge of the crusher is smooth
- The size of the conveyor belt is appropriate to the maximum output capacity of the crusher
- Proper selection of sieve sizes for pre-screening and closed-circuit screening
Installation and operation requirements of hydraulic cone crusher?
Installation of hydraulic cone crusher:
- The equipment should be installed on a level concrete foundation and fixed with anchor bolts
- When installing, you should pay attention to the vertical alignment of the main body and the horizontal
- After installation, check whether the bolts of various parts are loose and whether the main engine compartment door is tightened. If so, tighten it immediately.
- Configure power cords and control switches according to the power of the device
- After the inspection, it is necessary to carry out an empty load test, and the production can be carried out after the machine runs normally.
Operating requirements of hydraulic cone crusher:
- For newly installed machines that have not undergone trial operation, personnel or cranes should be moved to check the machines before starting to avoid collisions.
- The cone crusher cannot be started when there is something in the crushing chamber, so check whether there is anything else in the crushing chamber before running
- Check the width of the discharge opening, and adjust it in advance if it does not meet the requirements
- Check whether various electrical connection devices and alarm devices are normal
- Check the oil level and oil temperature in the oil tank. When the oil temperature is lower than 20 degrees Celsius, the machine cannot be run, and the oil temperature needs to be heated before running.
- The feeding must be uniform, and the particle size should meet the requirements, generally less than 80% of the size of the feeding port
- It is strictly forbidden for non-broken objects to enter the crushing cavity to prevent damage to the parts of the equipment
- Always check the oil quantity and oil temperature of the lubrication system, the return oil temperature should not exceed 60 degrees Celsius
- Check the drainage of the water seal and dust, if the water is cut off, the operation cannot be carried out.
- Check whether the pipes of the water cooling system are unobstructed, as well as the water volume and water temperature
- Pay attention to check the oil pressure of the locking cylinder, the adjusting ring must be able to operate under the locked state
- Regularly check the wear of the liner and the tightening of each component. If it is found to be loose, falling off or severely worn, it should be tightened immediately or replaced on time.
- Check the particle size of the product frequently, and adjust it immediately if it exceeds the specification
Machine maintenance requirements for hydraulic cone crushers?
Bearings are responsible for the full load of the machine, so good lubrication has a great relationship with the life of the bearing. The bearing directly affects the service life and operation rate of the machine. Therefore, the injected lubricating oil must be clean, the sealing must be good, and the machine’s Main oil filling places: rolling bearings, roll bearings, all gears, movable bearings, sliding planes, etc.
Newly installed tires are prone to loosening, so they must be checked frequently
Pay attention to whether all parts of the machine work normally
Pay attention to check the wear degree of the wear-resistant parts, and pay attention to replace the worn parts at any time
On the bottom frame plane of the movable device, dust should be removed to avoid that when the machine encounters materials that cannot be broken, the movable bearing cannot move on the bottom frame, resulting in serious accidents.
If the bearing oil temperature rises, the machine should be stopped immediately, the cause should be checked and eliminated
When the rotating gear is running, if there is an impact sound, stop the machine immediately and check the solution.
Precautions:
Since the single-cylinder hydraulic cone crusher adopts hydraulic adjustment hydraulic insurance and hydraulic unloading, when the crushing cavity is blocked or stuck by the material, as long as the hydraulic system is operated, it can be unloaded in a short time.
From the perspective of use, the single-cylinder hydraulic cone crusher hydraulic oil circuit gate valve selected for crushing in beneficiation lacks an oil baffle plate, which causes the oil between the injection shaft and the eccentric sleeve to be subjected to high pressure, splashing out, and oil leakage. serious. The ore discharge port can usually only be controlled at 30 to 40 mm, resulting in a coarser particle size of the crushed product, with a maximum particle size of 60 mm. Even if the screen aperture of the vibrating screen was changed from 18 mm to 30 mm in the original design, the circulating load was still very high, which often blocked the crusher.
In view of these existing problems, an oil baffle can be added to the gate valve, the oil return hole is enlarged, the diameter of the oil return pipe is enlarged, and the natural resistance of the elbow and the oil return can be reduced. By adopting the above measures, the oil leakage problem is basically It can be solved, and the hydraulic cone crusher works basically normally.
Maintenance of hydraulic cone crusher?
Regular maintenance:
- Check spherical bearings
- Check the wear of straight bushing and tapered bushing
- Check the clearance between the adjustment gears
- Check the drive bearing bush clearance
- Check and clean hydraulics and lubrication
- Check and clean seals and dust rings
- Repair or replace some small parts
The main contents of minor repairs are:
- Including frequent maintenance
- Check, repair or replace spherical bearings
- Repair or replace large and small bevel gears, drive shafts and bearing pads
- Repair or replace eccentric bushings, tapered bushings and straight bushings
- Repair adjustment ring and support ring threads
- Filter or change oil
- The above contents, each minor repair does not have to be all carried out, you can choose according to the actual situation
The main contents of the middle school are:
- Include all minor repairs
- Replacing the big and small bevel gears
- Replacing the drive bearing and spherical bearing
- Detect the clearance between the spherical bearing seat and the upper end face of the eccentric bushing
- Check or replace springs and spring bolts
- Check the wear of the spherical bearing seat and the body, the moving cone and the main shaft, and replace if necessary. The above items may not be all repaired each time, and the inspection items can be selected according to the actual situation.
The main contents of the overhaul include:
- Including the contents of middle school
- All parts dismantling inspection, measurement, repair or replacement
- Inspect, repair or replace adjusting rings, backup rings, springs and spring bolts
- Correct the technical performance of the whole crusher, and can carry out technical transformation according to the specific situation
- There are two ways to formulate the maintenance cycle, one is based on how many tons of ore is broken; the second is determined by how long the load runs
Maintenance Notes:
No matter which method is used, it should be formulated according to the actual production conditions, because the maintenance cycle of the crusher is related to many factors. Such as crusher maintenance quality, work efficiency, load, ore strength and the amount of large ore, and the quality of maintenance.
Therefore, the length of the crusher maintenance cycle is different, and each situation is different. If the ore is very hard and too large, there are too many ore blocks, and the load is too large, the crusher maintenance cycle is very short. In short, for the overhaul of the crusher, it is necessary to determine when to overhaul based on its own situation and the responsible attitude of the staff.
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