Teach you how to choose high quality with high efficiency Hydraulic motor When choosing a hydraulic motor for the new management system of the scheme and exploring alternatives for the hydraulic motor in the current management system, it may be necessary to consider other factors besides the requirements for output power (torque, speed ratio). In many cases, it is a shortcut for the preliminary review of motors to compile the past application resume (that is, under similar application conditions, which motor won and which motor failed). When you can prepare your own resume without using it in the past, you must consider the following identities:
Axial load and radial load
Condition temperature, management system event temperature and refrigeration management system
Gasoline pump case: gear pump, gear pump or axial plunger pump
Load protection: valve close to hydraulic motor
Speed over load protection
Event load cycle
Hydraulic oil case
Minimum total flow and large flow
Business scale under work pressure
Management system case: open management system or closed test management system
When the air displacement and torque of the motor come from the condition of "two possibilities", the load cycle, working pressure and total flow become the decision-making identity of the hydraulic motor that gives the most appropriate preconditions.
Load cycle and speed exceeding load protection are two anxiety factors that are often careless. When the speed exceeds the load precondition, the motor is in the working condition of the gasoline pump. At this moment, the torque suffered by the motor coupling shaft is likely to be twice as large as that under the disordered condition. If the above conditions are carelessly mentioned, the motor will be damaged.
When things load cycle, management system matching is another factor to be considered when there is abnormal anxiety. If the motor is required to be overloaded for a long time and have a relatively satisfactory service life, the torque and speed ratio obtained from the material sample at this moment is not enough to meet the application requirements, and the essential choice is that the overall objective of the function exceeds the quality of the series of products beyond the first gear. Abnormal. If the frequency of motor events is very low, you can choose the product material whose overall function goal is slightly lower from the sample. An example is the use of a hydraulic motor to drive the winch. The electric winch manufacturer uses a WhiteRS series motor. As long as the main parameters of specific things exceed the main functional parameters obtained from the sample, they can still confuse things. Because the motor is used frequently and the level is very low, and the delay time of every event is very short, the function and service life can be relatively satisfactory. The motors thus selected can significantly reduce the purchase cost.
Precautions for application of small total flow
White motor Anxiety is characterized by excellent low-speed gear. If properly applied, some White motors can stabilize things at a speed ratio of less than 2 r/min without causing creeping. When the total flow is less than 3L/min, we recommend using HB, DR or DT series motors. Due to the special scheme of motor equipped with oil baffle for many series of products, the exposure under small total flow is stable, thus improving the low-speed feature of hydraulic motor. Given the speed ratio, choose a motor with a large displacement as far as possible, so that the total flow of the motor through the whole process is large and the required pressure difference is minimum. When choosing a motor with large displacement, the change of speed ratio caused by load change can be minimized. Use one-way throttle valve or this product to add back pressure type to the motor, which can make the motor twisted and smoother.
