Content :
1. What is the best way to drive a mobile crusher?.
2. New type of mobile crusher
1. What is the best way to drive a mobile crusher?.
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| The advantage of the mobile crusher can be used according to the desired location |
In general, the crusher would be powered by a V-belt directly from the diesel engine, which is decoupled by a mechanical clutch. Due to the immense inertia of the flywheels, it would be necessary for the operator to move the clutch lever to force the machine without stopping the engine.
It worked well and in many cases it is still a good solution if you only need a few days a day and poor performance all you need. However, the market is now saturated with other solutions and can be confusing. The users of the facility will know what works best for them.
By eliminating torque converters and diesel-electric hybrid drive solutions that have specific applications, but whose use is scarce due to their cost, industry is attracting the dry-clutch clutch and transmission to hydraulics.
Take, for example, the coupling from the dry plate! Screw it directly to the engine and attach a pulley to the output shaft to drive the V-belts. In terms of absolute efficiency, this process certainly has the least energy loss of all processes, if only the amount of fuel is considered.
Take the dry plate clutch for example! Bolt it straight onto the engine and hang a pulley on the output shaft to drive v-belts. In terms of absolute efficiency, this certainly has the lowest power loss of all methods if your only consideration is how much fuel you use.
The compensation is pure efficiency versus functionality
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| Can easily be moved |
Depending on the arrangement of the clutch mainshaft bearings, the limited lateral load capacity may make the clutch and motor susceptible to excessive tension on the drive belts. Since drive belts are forced to move the motor package, the correct tension can be difficult. In addition, the V-belt drive limits the available positions for engine installation.
Motor torsional vibrations can cause "micro-slip" which increases the operating temperature and leads to premature failure.
Since the mobile crusher can jam with variable size and feed quality, the grinding chamber of a direct drive machine must be manually cleaned so that a jam may occur. Attempting to start a chopper blocked by the clutch can cause serious damage. Although some computers can open the configuration to download some of the blocking hardware, it is unlikely that a restart will be possible without manual intervention.
The dry clutch occupies the main output of the main engine. A mobile crawler requires additional high torque output to drive the crawler pumps. This often leads to sophisticated designs that adapt to additional PTO requirements through external disc splitters, crankshaft drives and even front drives and cardan joints. The original accessories drive the accessories installed behind the engine, the hood raises the pumps, making it difficult to properly pump the pump into the inlet opening, and causing cavitation cold in the climate. ,
While the OEM cost of hydraulic transmission systems can surpass that of a dry clutch clutch, the system's main pump delivers hydraulic power to the crusher and crawler to move. The main pump occupies the main output of the main engine, and a secondary high torque sub-drive stage is not required, resulting in a very compact installation.
Since the mill drive is indirect, the position of the motor and pump assembly is not limited by the transmission. As a result, the engine can be mounted in the best position and orientation for efficient operation and maintenance. It should also not be forgotten that the breaker unit is only part of the system. An auxiliary drive system with waste can easily lose any efficiency gain achieved by the training method. Hydraulic drives have been used for some time by several major manufacturers for handling shredders and are very successful. The main advantages of a hydraulic system relate to greater flexibility in control and operation.
What is the difference between a hydraulic and a hydrostatic drive? In essence, a conventional open circuit hydraulic system draws oil from an oil tank via a high pressure pump and then drives the hydraulic motor. The engine return goes directly to the oil tank. This system allows the motor to be reversed with a control valve and is protected from overload by a pressure relief valve.
In the hydro static system, the high pressure oil from the pump enters the engine and then returns to the pump inlet in a continuous closed loop. That is, if the load is to run faster than the pump, the motor acts as a brake to maintain control. In this way, the shredder can not only be used by the system, but also slow down and stop.
After the machine has been stopped in an emergency, the jaw is now full of pebbles! A clutch machine should now be cleaned manually; However, the hydraulic machine can reverse the jaw rotation and start, the jaws are still filled, without risk of damage. Removing barriers is considered one of the most dangerous processes when using a jaw crusher. With the hydraulic blocking of the free space, this becomes a routine that can be removed and carried out with less danger. The regrinding effect can also be used to crush sensitive materials such as asphalt that can settle and block separation.
Exact control is also evident in the monitoring. A heavy unit can now control by changing the speed of each track independently and turning it on-site. It is not necessary to shake the system constantly by turning only to turn the road; You can run one track faster than the other.
Given the level of electronic control, a direct data connection can be installed to assist the operator to provide remote access from the manufacturer. Not only can performance data be retrieved to solve difficult situations, but programming changes can be made as needed to tailor the performance of the machine to the operator's needs.
Another advantage of the hydro static system is that the pumps can be steplessly controlled directly by the on-board computers, which makes them incredibly controllable.
When a mobile crushing plant shuts off, the flywheels usually continue to run for a few minutes, slowly consuming their stored energy. After gently accelerating the wheels to working speed, the hydrostatic transmission system can easily stop them within seconds. Another benefit of this level of control is that "emergency stop" can cause the entire system to safely stop in seconds.
Today's gear pumps can be precisely controlled by an on-board computer system. When starting the crushing system, the flywheels can be accelerated for a few seconds until they reach the speed without overloading the engine or almost silently. The control system monitors the engine operating parameters in real time. When the power consumption becomes too large, the pump current can be reduced to allow maximum uninterrupted productivity.
But what is the disadvantage of all this? Hydraulic machines are often accused of lack of efficiency, but a well thought-out system can offer more advantages that offset lower overall efficiency. Well, a simple combination of gear pump and motor can reach a 50 to 60% yield when hot and very heavy. However, a modern axial piston transmission pump / motor differs greatly. The efficiency of individual components can be more than 90% provided the system is well designed and thermal management is effective as the system is more efficient in a low oil temperature range.
The oldest open-loop transmissions were filled with more than 1,000 liters of oil, often unloaded and refilled. This is no longer the case, the last-generation hydro static units require a much smaller tank capacity and must be used instead of a filter and an oil change system depending on operating hours or operating hours. Monthly maintenance is based on the conditions of oil extraction. This can significantly reduce maintenance costs.
2. New type of mobile crusher.
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| The mobile crusher was developed in accordance with the new design idea of the rock crushing plant |
The excellent performance.
1. High-performance jaws, drums and cone crushers equipped with a mobile crusher.
2. The loader, the conveyor belt and the vibrating screen are all in one station
3. Turning the drive shaft is convenient for road traffic and for expanding the workplace.
4. Vehicle assistance is easier to park at the workplace.
5. The generator, the engines and the control box of the vehicle are all contained in the mobile crusher.
Applications and advantages
- Team Integrator Group
The integrated installation of the mobile crusher reduces the need for complex infrastructures and ancillary equipment, reducing material consumption and working hours. The spatial arrangement optimizes the working space, saves space and expands the storage and transport area.
- Flexibility
The chassis of the mobile crusher is high and the turning radius is low, which is more convenient for transportation on normal roads and for the roads of the crushing plant. This saves time to enter the workplace. It is also easy to get a decent job and to provide space for the entire flow of the mill.
- Lower transport costs
The mobile crushing plant can crush materials at the main site and eliminate the transport of the material to the crushing station, thereby reducing transportation costs. In addition, the extended equipment group transports materials directly to the intended conveyor belt.
- Direct and effective operation.
It can be used independently and we can offer a more flexible design, depending on the specific requirements of the customer, such as type of raw material, final size, etc. to meet your needs.
- Easily customizable and flexible for mobile crushers
The plant offers the abbreviation and configuration of cost-effective integration devices. Depending on the shredding system and coarse or fine screening, it can work independently or together. The side hopper provides flexibility in the transport of materials. The diesel generator with integration configuration not only supplies energy, but also, in particular, the flux integrator group.
- Reliable performance and practical maintenance
The crushing plants of the PE, PF or HP series of the mobile crushing plant are characterized by a high refractive index, multi functional products, fine products, a reasonable constructional design and an excellent breaking capacity. Reliable quality best meets the requirements of coarse, medium and fine grinding and screening. Enjoy high reputation at home and abroad. The mobile crushing plant is not only equipped with proven technology and easy maintenance, but also offers good adaptability and safety in terms of volume, material size and erosion. The integration system facilitates installation and maintenance, ensuring longevity and efficiency.
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