Causes and Solutions of Insufficient Oil Delivery of Low Pressure Gear Pumps
It is a conversion device that converts the mechanical energy output from the motor to hydraulic energy by a pair of meshing gears. It is used as a hydraulic energy source to provide a certain flow pressure in the hydraulic system of a machine tool or other machinery. Hydraulic system.The low-pressure hydraulic gear oil pump is a low-pressure gear pump without a side plate and a three-piece structure.Gear pump does not have radial force balance structure and axial clearance compensation device, and works on the principle of clearance seal Low pressure gear pumps are small in size and light in weight, simple in structure and easy to maintain; CBB hydraulic gear oil pumps work reliably and are used in machine tool hydraulic systems, textile machinery, as hydraulic energy and lubricant pumps. 1. The axial clearance and radial clearance are too large: Because the end faces on both sides of the gear pump are subject to relative movement with the bearing race during rotation, wear will occur. Parts must be replaced when the axial clearance and radial clearance are too large. 泵体裂纹与气孔泄漏现象：泵体出现裂纹时需要更换泵体，泵体与泵盖间加入纸垫，紧固各联接处螺钉。 2. The crack of the pump body of the low pressure gear pump and the leakage of the air hole: when the pump body is cracked, the pump body needs to be replaced. A paper pad is added between the pump body and the pump cover to tighten the screws at the joints. 3. The oil viscosity is too high or the oil temperature is too high: Use 20 # mechanical oil to choose a suitable temperature. Generally, 20 # full loss system oil is suitable for working at a temperature of 10 ~ 50oC. If it works in three shifts, a cooling device should be installed. 4. Reverse motor: Correct the direction of motor rotation. 5. The filter has dirt and the pipeline is not smooth: remove the dirt, replace the oil, and keep the oil clean. 压力阀失灵：修理或更换压力阀。 6. Low pressure gear pump pressure valve failure: Repair or replace the pressure valve.