2019-07-11 17:00:00 0
The working principle of the triangular oil pump. The structure of the triangular gear oil pump is shown in the figure. When the driving gear of the pump rotates in the direction of the arrow in the figure, the gear on the right side (suction chamber) of the gear pump is disengaged, and the gear teeth of the gear are withdrawn between the teeth The sealing volume increases and a partial vacuum is formed. The oil in the oil tank enters the interdental space through the oil suction pipeline and the oil suction cavity under the action of the external atmospheric pressure. As the gear rotates, the oil sucked between the teeth is carried to the other side and enters the pressure oil chamber. At this time, the gear teeth enter meshing, which gradually reduces the sealing volume, and the oil liquid between the gears is squeezed out, which forms the oil pressure process of the gear pump. When the gears are meshed, the tooth contact line separates the oil suction chamber and the pressure oil chamber and plays the role of oil distribution. When the driving gear of the gear pump is continuously rotated by the motor, the gear teeth are disengaged from the meshing side. As the sealing volume becomes larger, the oil is continuously sucked from the oil tank. Draining oil, this is how the gear pump works.
Introduction to the connection method of the triangle oil pump:
1. There are three, six, nine, twelve, etc. outlets of the oil pump motor as required.
2. The three outlets are marked with U, V, W, and have been internally connected into a "Y" or "△" shape. When used, the three outlets can be connected to the three-phase power line.
青海快33。 For six terminals, single-speed motors use U1 and U2 as the first phase, V1 and V2 as the second phase, and W1 and W2 as the third item。 When in use, it should be connected to the "Y" type or "△" type according to the connection shown on the motor nameplate or wiring diagram, and then connected to the three-phase power line。
青海快34. For motors with nine or more outlet terminals, multi-speed motors, multi-capacity grade motors, multi-voltage grade motors and other special wiring methods, the line end marking and wiring method shall be carried out in accordance with the motor wiring instruction label.
5. The rotor of the twelve-wound rotor motor has three outlets, generally marked with K, L and M. When used, they are connected to the three terminals of the frequency sensitive resistor or varistor respectively.
The star connection phase current is equal to the line current, the line voltage is 3 times the root of the phase voltage, the delta connection, the line voltage is equal to the phase voltage, the line current is 3 times the root of the phase current, and a certain connection is connected for three-phase symmetric loads It can increase the working voltage of each phase, increase the power, and the delta connection method helps to improve the power of the motor. The disadvantage is that the starting current is large and the winding withstand voltage (380V) is large! The insulation level is increased!
The planetary connection method helps reduce the winding withstand voltage (220V) and lowers the insulation level! Reduced starting current, disadvantages, and motor power reduction! Therefore, most of the small power motors below 4KW use the planetary connection method! More than 4KW use Delta connection! The delta connection motor uses Y- △ start at light load to reduce the starting current! Light load is a condition, because the Y connection torque will become smaller, the purpose of reducing the starting current is to use the Y connection Reduced starting current!
The power of the delta connection is large, and the starting current is also large. The power of the star connection is small, and the starting current is also small. About the working principle of the triangle oil pump, the introduction of the connection method of the triangle oil pump is here. The connection method of the triangle oil pump can be connected according to your own technology or experience. The above is only the theoretical actual combat and you need to understand it yourself. Our company is a professional manufacturer of triangular oil pumps, lubricating oil pumps and gear oil pumps. If you have any related product needs, please contact Jintongshun.