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• 5/5/2020 - introduce the three major devices of hydraulic jaw crusher

The structure of the hydraulic jaw Used Portable Concrete Crusher is basically the same as that of the general simple swinging jaw crusher. The difference is that the safety mechanism and adjustment mechanism of the hydraulic oil cylinder replace the original safety device and adjustment device of the general jaw crusher. The principles of the three major devices of hydraulic jaw crusher segment starting, hydraulic safety and hydraulic adjustment are described below.

1. Hydraulic stage start. In order to reduce the power Ore Milling Equipment consumption of the large jaw crusher during startup, two hydraulic friction clutches are installed at both ends of the eccentric shaft. One friction clutch is installed between the pulley and the eccentric shaft, and the other is installed between the flywheel and the eccentric shaft. The clutch is usually closed due to the action of the spring, so that the flywheel, the pulley and the eccentric shaft are tightly engaged. Before starting the crusher, First, use a hydraulic oil pump to fill the two oil cylinders provided at both ends of the eccentric shaft. When the oil pressure increases to 29kg / cm2, the cylinder piston moves to the two ends of the eccentric shaft, and the compression spring disengages the clutch. At this time, the main motor is started to drive the pulley to rotate. After 20s, the pulley reaches normal operation. At this time, the oil in the cylinder of the pulley is depressurized and flows back to the tank, the clutch is closed, and the eccentric uranium runs with the pulley. After 20s, the flywheel The oil in the end cylinder is relieved of pressure, the clutch is closed, and the flywheel runs with the eccentric uranium, completing the three-step start of the crusher.

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• 4/5/2020 - Gear lubricant for roller crusher

The Used Portable Concrete Crusher manufacturer teaches you how to choose the gear lubricant of the roller crusher correctly. The gear is an important part of the roller crusher to complete the crushing operation. Without the smooth operation of the gear, the crushing operation of the material cannot be completed, and lubrication is an indispensable step to ensure the long-term smooth operation of the gear. Today, let ’s talk about how to choose the lubrication of the roller crusher gears. What factors will affect the choice of lubricants?

If the Sand Making Machine Manufacturer lubrication is not in place, it may affect the normal operation of the equipment. In severe cases, it may even damage the equipment. The wrong choice of lubricating oil is also as serious as the consequences of not doing well, and there are many factors that affect the choice of lubricating oil for the roller crusher. Below we will introduce them one by one.

1. Load (pressure). High-viscosity lubricants are more resistant to heavy loads and collision friction between metals than low-viscosity lubricants. Therefore, low-viscosity lubricants should be used when the equipment is lightly loaded, and high-viscosity lubricants should be used when high-loaded. 2. Speed. The faster the gear slides and rotates, the less time it takes for lubricant to pass between the gears. Not only that, the lubricant is also more likely to agglomerate and thicken under high-speed operation. Therefore, comprehensive considerations, gear operation with high viscosity oil at low speed, low viscosity oil at high speed.

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