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How To Choose The Torque Limiting Coupler?
How to choose the torque limiting coupler? First of all, we should choose the hydraulic coupler according to the driving requirements of the working machine. The working machine needs to solve the problems of starting difficulties and overload protection. We must choose the torque limiting...
How to choose the torque limiting coupler?
First of all, we should choose the hydraulic coupler according to the driving requirements of the working machine. The working machine needs to solve the problems of starting difficulties and overload protection. We must choose the torque limiting hydraulic coupler. If we need to speed up the energy saving, we must choose the speed regulating hydraulic coupler. The second is to give consideration to the principle of the pump theory of moment coefficient.
The principle of high efficiency and energy saving:
For constant torque machines, the torque limiting fluid couplings should be chosen. It is not particularly necessary not to choose speed regulating hydraulic couplings, because the larger the speed range is, the lower the efficiency. For linear or sectional load lines, the variable speed hydraulic coupler is recommended for working machines with variable load. It can save energy by using speed regulation, but also does not permit long-term operation at the maximum heating point, because this will waste resources.
The principle of safety and reliability:
The motor and working machine can be protected from damage when starting and overloading. For the moment limited hydraulic coupling, the overload protection coefficient should be lower than the overload coefficient of the motor, and there is a super - temperature and overloaded protection device. The speed regulation type and the moment limit hydraulic coupling used in coal mine should have the function of explosion proof.
The principle of mobile operation:
Must be able to ensure the whole system working in specified stable operating points, not speed up, do not turn, smooth operation, no fluctuation, speed sensitive and reliable.
The principle of convenient and reliable connection with motor and working machine (including reducer and increase speed device):
Connect the hydraulic coupler and power machine and working machine must be safe and reliable, convenient installation and disassembly, short axial size and speed of large size yox must use the connection without moving the working machine and power machine can be disassembled, and must ensure safe and reliable connection.
To meet the environmental requirements of the principle of:
The hydraulic coupler used in wet, dust, cold, hot, flammable and explosive conditions must have the function of adapting to the bad working environment. The torque coefficient of the pump wheel of a hydraulic coupler is related to the ratio of the speed of the rotating speed. The speed ratio is large, the efficiency is high, the torque coefficient of the pump wheel is small; on the contrary, the speed ratio is small, the efficiency is low, and the torque coefficient of the pump is large. Therefore, when selecting and matching, the torque coefficient and speed ratio of the pump must be taken into account. The efficiency is higher and the torque coefficient of the pump wheel is larger. The hydraulic coupling should be economical and applicable, and the comprehensive technical performance is high.
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