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Cone crusher is the most widely used crushing equipment in crushing operations, and countries around the world attach great importance to its improvement. Over the years, the vast number of workers and technicians in China have done a lot of work to improve and seek a new type of crushing equipment with simple structure, easy to use, good performance and high efficiency. These include improvements to spring-loaded cone crushers, as well as the design, manufacture, testing and application of hydraulic cone crushers. the shortcomings of the old spring cone crusher; It is inconvenient to adjust the discharge port; Due to the large spring stiffness of the crusher during the iron crossing, the overload coefficient of the crusher is very large, and it is difficult to take out the non-crushed objects blocked in the crushing chamber. The hydraulic cone crusher has successfully overcome the above shortcomings. In recent years, China's workers, engineering and technical personnel have summarized China's more than ten years of production practice experience and critically absorbed foreign advanced technology, designed, manufactured and applied single-cylinder and multi-cylinder hydraulic cone crushers. Improvements and research are ongoing.
The drive mode of the cone crusher
In the specific study of the structure of the cone crusher, we analyze from a certain cross-section of the cavity type of the cone crusher, and know that the moving cone will rotate back and forth evenly around the center line of the fixed cone.
In the process of extrusion of the crushed material, the ore will be extruded to the critical stress of the material by a huge force to achieve the initial purpose of crushing. During the falling motion of the crushed material, the ore will pass through the cavity of the cone crusher with the movement of the moving cone under the action of gravity. At a fixed point in the crushing chamber of the cone crusher, the distance between the moving cone and the fixed cone will change periodically with the different opening and closing states during work. This kind of motion can be described in detail by a cyclic function that varies with the deflection angle.
Hydraulic cone crusher can be divided into multi-cylinder hydraulic cone crusher (HPY series) and single-cylinder hydraulic cone crusher (GPY series) according to the difference of providing hydraulic system.
HPY series multi-cylinder hydraulic cone crusher is a high-energy cone crusher with the world's advanced level developed by introducing the latest technology from Germany. The machine replaces the traditional single-particle crushing principle by adopting a special crushing chamber designed by the principle of intergranular lamination and the corresponding speed, so as to achieve selective crushing of materials and uniform crushing particle size. The two-way iron release hydraulic cylinder can allow the iron to pass through the crushing chamber smoothly, and in the case of iron crossing and instantaneous stuffiness, it can be hydraulically lifted and automatically discharged, avoiding the operation of the spring cone crusher that needs to be shut down for maintenance. The crushing chamber adopts high-performance non-contact labyrinth seals, which improves the reliability of blocking dust, reduces iron pollution and equipment wear cycles, and the unique thin oil lubrication system carried by the fuselage greatly improves the service life of the equipment.
GPY series single-cylinder hydraulic cone crusher is the latest hydraulic cone crusher, which is another important breakthrough in the principle of layer crushing and static pressure theory based on HP series hydraulic cone crusher integrating United States technology. The crushing chamber of GPY hydraulic cone crusher is divided into four cavity types according to the requirements of crushing particle size, which are medium crushing, medium and fine crushing, fine crushing and extra-fine crushing, which is suitable for crushing various ores and rocks such as iron ore, non-ferrous metal ore, granite, limestone, quartzite, sandstone, pebbles and other ores and rocks with Platts hardness f=5~16, which are widely used in metal mines, metallurgical industry, chemical industry, construction industry, cement industry and sand and gravel industry.
The working principle of cone crusher
In the work, the rotation of the motor drives the pulley or coupling, the transmission shaft and the cone to make the eccentric shaft do periodic swing motion under the axis line. After the material enters the crushing chamber from the material port, it is squeezed, ground and kneaded due to the mutual impact of the eccentric shaft and the mortar wall, resulting in the crushing effect. The hydraulic safety system can eliminate the faults of the support sleeve and the fixed cone through the hydraulic pressure when the machine has a steel failure or stuffy driving phenomenon, which greatly reduces the maintenance rate and improves the production efficiency while playing a good insurance role.
HPY series hydraulic high-efficiency hydraulic cone crusher has greater advantages over spring cone crusher and general hydraulic cone crusher:
1. It has a large crushing force, high production efficiency and high output - the combination of higher speed and stroke makes the rated power and passing capacity of the HP crusher greatly improved, and the crushing ratio and production efficiency are improved.
2. Low consumption of wearing parts, reliable operation and low operating cost - reasonable structure, advanced crushing principle and technical parameters, reliable operation and low operating cost; All parts of the crusher are protected by wear resistance, which reduces maintenance costs to a minimum and increases the general service life by more than 30%. It is mainly used in large-scale stone plants, which solves the shortcomings of small average crushing ratio, high energy consumption and fast wear of hammer head, impact plate and lining plate.
3. Lamination crushing, excellent particle shape of the finished product - through the special crushing cavity designed by the principle of intergranular lamination and the corresponding speed, the traditional single particle crushing principle is replaced to achieve selective crushing of materials, which significantly improves the proportion of fine materials and cube content of the product, and greatly reduces the needle-like materials.
4. Hydraulic protection and hydraulic cavity cleaning, high degree of automation, reduce downtime - hydraulic adjustment discharge port and overload protection greatly improve the operation level of the crusher, make maintenance simpler, operation more convenient, and downtime shorter; HP series cone crusher two-way iron release hydraulic cylinder can let the iron through the crushing cavity, the machine in the case of iron and instantaneous stuffiness, can hydraulic jacking, automatic discharge, greatly reduce the original spring cone crusher need to stop for manual discharge, while many other manufacturers of crusher will be stopped due to iron stuck.
5. Rare lubrication, reliable and advanced, improve service life - the unique design of thin oil lubrication system greatly improves the service life of the equipment. High-performance non-contact labyrinth seals are wear-free,
