Ningbo Power Hydraulic Motor Co., Ltd. [China (Mainland)]
Business Type:Manufacturer, Trading Company, Agent, Distributor/Wholesaler, Service City: Ningbo Province/State: Zhejiang Country/Region: China (Mainland)
Units 1 40T vertical broaching machine, in 2000, 3 ~ 6 month period, there were three hydraulic oil blackened boxes, while the work machine failure, inability Broaching machine major components many Radial Piston Pump times killed. In the course of troubleshooting, maintenance personnel because of the lack of analytical capacity of the cause of the malfunction, a number of miscarriage of justice, in the repair process of repeatedly missed opportunities to correct the repair, replacement of the replacement parts should not be a waste of a great deal of time and effort.
The first time in the machine tool hydraulic oil blackening when no attention until the plunger killed, motor can not rotate. Pump apart to inspect the oil pump found in the circumference on the inner wall of Health has much iron, the rotor part of the plunger with the hole with loose, so that the plunger and the holes are too large gap caused by wear and tear, that is part of the killed column conducted a study with Cypriot and repair, and replace some bearings and other spare parts.The first time in the machine tool hydraulic oil blackening when no attention until the plunger killed, motor can not rotate. Pump apart to inspect the oil pump found in the circumference on the inner wall of Health has much iron, the rotor part of the plunger with the hole with loose, so that the plunger and the holes are too large gap caused by wear and tear, that is part of the killed column conducted a study with Cypriot and repair, and replace some bearings and other spare parts.
Under such circumstances, ought reasonably to analyze the possible reasons for emergence of iron powder, but the maintenance staff of the oil are substantial sources of iron can not understand that before the second repair of the pump can no longer search the site , so the focus will check the fuel tank of the think tanks may be the wear and tear, the two tanks were demolished inspection, found none. At that time, we learned that after the failure of the oil in a large number of iron analysis of the situation consider are: iron powder with a certain high-speed rotary pump parts, andIf the tanks nap, in the short term will not are substantial iron, and check should be placed on pump parts, therefore requested to carry out repair works on the oil pump inspection. Turn over to check on the pump, the pump's inner circle (drum) suddenly dropped out of the part of the original bearings with D42234 laps due to the inner circle, about 170mm in diameter and the circumference of the wear and tear on one side have been more than 5mm. Resulting in substantial iron,Caused by hydraulic oil black, bearing damage, shaft killed, machine tools not work correctly. Therefore, the wear parts of the mosaic repair, replacement of a damaged bearing, at the same time based on an analysis of the original use of the rotor is not affected and, therefore, under the rotor to be replaced again fitted with the use of the normal machine. This failure to determine because of the mistakes of the iron so that hydraulic machine components damaged due to repair and buy spare parts three times, wasting a lot of money and time and give a serious impact on production.
Caused by hydraulic oil black, bearing damage, shaft killed, machine tools not work correctly. Therefore, the wear parts of the mosaic repair, replacement of a damaged bearing, at the same time based on an analysis of the original use of the rotor is not affected and, therefore, under the rotor to be replaced again fitted with the use of the normal machine. This failure to determine because of the mistakes of the iron so that hydraulic machine components damaged due to repair and buy spare parts three times, wasting a lot of money and time and give a serious impact on production.
In the repair of equipment and do a good job on the fault-site diagnosis, is to ensure rapid, accurate premise of treatment failure. Only in the course of repair through continuous exploration and summary, in order to improve efficiency and guarantee the quality of repair.