Since the beginning of this year, on the new speed governor model of the Changchai F-series diesel engine, the common rail model has been mass-produced, and the market prospects have been improved. In order to further improve the quality of this series of products, production capacity, the company's single-cylinder machine (units ) The plant cooperated with relevant departments to carry out the F-series diesel engine quality improvement project. Through several months of efforts, the current quality improvement project has achieved good results, achieving a double improvement in quality and quantity.
F series diesel engine production line
In the process of carrying out the quality improvement project, the single-cylinder machine (plant) plant carried out a summary analysis of the F-series diesel engine production and the quality issues that have occurred in the market in recent years, and continuously improved from the aspects of improving the quality of parts and optimizing the testing process.
In terms of improving the quality of parts, the single-cylinder machine (crew) factory will work together with the quality assurance department and suppliers to carry out joint research and achieved phased results: First, the 178F fuel tank under the bracket components improved, 192FA cylinder head double studs improved, F model The length of the bracket fastening bolts on the fuel tank is improved, and the improvement of the F common rail type oil pump wiring harness protection protective sleeves is already in place; the second is that the F series model chamber cover gaskets have been subjected to a single rib tight pressure test and no reinforcement with rubber pads. The tracking test of the chip installed machine, according to the test results, is currently under the pressure verification of the double-sided rib spacers, and the follow-up will be installed in the tracking test, and then the gaskets will be improved.
F series diesel engine test shop
In the optimization of the test process, multi-pronged approach, high standards, strict requirements, to ensure that the improvement measures in place: First, through the improvement of the F common rail model box, the cover of the bearing press-fitting tooling, process, to ensure the parts Assembly quality; secondly, the power supply to the oil pump of the flywheel is used during the running-in of the solenoid valve fuel injection pump, which not only checks the function of the flywheel generator, but also improves the productivity bottleneck of the model test; The common-rail type air release device is equipped with an online running-in process device to realize the on-line run-in test of the common rail type of the F. It greatly improves the test capability of the model under the requirement of the running-in process time; The inspection process is complete, the entire vehicle inspection position is set up, and the wrong-leakage and loose-loading equipment is effectively controlled. The fifth is the transformation of the 12V DC power supply on the gantry dynamometer to ensure that the ECU and the electromagnetic fuel pump of the common rail model are powered separately. The stability improves the accuracy of test performance testing. Sixth, it improves the access path of the dynamometer to ensure the convenience and safety of personnel operation when the new governor is commissioned. It also ensures the accuracy of oil restriction; Been designed bearing heating device, an improved chamber cover-box technology, currently bearing the heating device has been initially completed, it is to continue to improve to improve, in order to ensure that adaptation tact.
Under the environment where the company improves quality and efficiency, it is believed that under the close cooperation and joint efforts of all departments of the company, it will be able to make F-series diesel engines become another star product of Changchai and create greater benefits for the company.