• Chain drive

    Chain drive is a transmission mode which transfers the motion and power of the driving sprocket with special tooth form to the driven sprocket with special tooth form through the chain. Chain drive ha

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  • The sprocket teeth and pitch of the chain

    In order to improve the motion stability of chain drive and reduce the dynamic load, the number of small sprocket teeth is better. But the number of small sprocket teeth should not be too much, otherw

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  • The reasons of fault of hydraulic pump

    During maintenance of hydraulic pump, the fault causes are found from the following three points.(1) Checking the inner leakage of movable arm oil cylinder. The simplest way is to raise the

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  • The installation of hydraulic oil tank

    According to the different installation position, it can be divided into upper type, side type and lower type.  The hydraulic pump and other devices are installed on the upper cover plate wi

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  • The selection of hydraulic oil tank

    The main function of the hydraulic oil tank in the hydraulic system is to store oil, heat dissipate, separate the air contained in the oil and eliminate foam. Firstly, the capacity of oil tank should

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  • The selection of coupling

    The hydraulic pump transmission shaft cannot bear the radial force and the axial force, so it is not allowed to install the belt wheel, gear and sprocket directly at the shaft end. The coupling i

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  • The characteristics of hydraulic pump

    There are many factors that affect the service life of hydraulic pumps, besides the design and manufacture of pumps themselves, and some of them are also related to the selection of relevant elements

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  • Hydraulic pump

    Hydraulic pump is a hydraulic component that provides pressurized liquid for hydraulic transmission. The hydraulic pump is the power component of the hydraulic system. It is driven by the engine or mo

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  • Hydraulic technology will not be completely replaced, but hydraulic products will be eliminated

    Mobile hydraulic is now very sensitive to energy consumption, and the requirements for energy conservation will be certainly higher when new energy is adopted. The elimination of inefficient component

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  • Doing your job well

    The laws of physics are hard to resist and the general trend is hard to change. It's no use watching the trend whine. However, real life is extremely complicated. There is always a place to h

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  • The process of technological substitution

    There is always a process involved in technology replacement:1) Finding technical possibilities;2) Finding the acceptable cost price and mass production process;3) Starting to gain appl

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  • It is unlikely that hydraulic technology will be completely replaced

    In addition, different applications have different focus on performance. For example, the hydraulic components work on endurance and the ship hopes to be 20 years old, while the missile take

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  • The condition of technological substitution

    1) The functions and application fields must be basically the same. It is nonsense to compare cow's head with horse's leg.2) There are better cost performance or excellent performance but not

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  • The examples for new technologies

    History shows that new technologies do not necessarily replace old ones. The following examples can be used for reference.1) The maglev train is suspended in the air by magnetic force, without contact

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  • The force does not equal the power, and the force density that is high does not equal the power density that is high!

    Power is force times velocity. Magnetic saturation density and current intensity limit the electromagnetic force but do not limit the speed of the electric drive. Due to the limitations of moving part

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  • Superconductors

    Superconductors, with almost zero resistance, could theoretically pass through an enormous electricity current, reducing the volume and mass of the electromagnetic actuator and further increasing the

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  • The root cause for using hydraulic transmission

    For fixed devices, electrical energy is generally available directly. Therefore, hydraulic transmission is not the first choice and is the last resort that will be used. But hydraulic technology

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  • The case for transmission modes

    To compare different transmission modes in practical application, the cost is usually very high. Because, it not only must do the paper rehearse and make the corresponding plan, also must ac

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  • The competition of transmission technology

    Although hydraulic technology is only a transfer of mechanical energy rather than the generation of mechanical energy technology. Just like the transport industry, it is only the transfer of good

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  • The impact of new energy sources

    In order to reduce emissions of waste gas and pollution particles PM10 and protect people's health, there is a growing call for the adoption of new energy to replace the internal combustion engine

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