3results about How to "Avoid factory" patented technology

The application relates to a locked-rotor testing device of an electric motor, which comprises a transformer, a base (3) for placing the electric motor (4), an arm body (2) sleeved on a rotating shaft (6) of the electric motor, vertical piers (1) vertically connected to the left and right sides of the base, the arm body being above the vertical piers and capable of being placed on any end of the vertical piers, a key body (8) inserted into a slot hole in the upper part of the arm body and capable of extending into a key groove (7) on the rotating shaft, the outgoing end of the winding of the electric motor being connected with the secondary of the transformer, a current meter being connected in series between the outgoing end and the secondary, the primary of the transformer being connected with commercial power, and the voltage of the secondary of the transformer being about one fourth of the voltage of the commercial power. The arm body and the vertical piers can play the role of locked-rotor for the electric motor no matter the electric motor rotates forward or reversely, the operation process is simple, the testing efficiency is high, the device has high practicability for the inspection of the electric motor, and the unqualified products can be effectively prevented from being delivered.

A kind of automobile engine factory inspection test method, belong to engine power test technical field.The method will engine be installed to test bench, carry out appearance inspection, fluorescent agent addition, combustion chamber endoscopy and cylinder pressure detection in turn, then complete running-in test according to four-stage gradient working condition, monitor ECU operation data and listen to abnormal sound during running-in period, detect leakage using fluorescent flashlight after running-in, can be factory shipped after all detection is qualified.The present application effectively solves the problem that production line cannot detect by standard, complete bench test process, realizes comprehensive, efficient, stable engine factory inspection, and effectively improves engine factory shipment quality and detection reliability.

The utility model discloses a kind of fuel filter airtight dry detection device with sediment cup, belong to fuel filter detection technical field, to solve the problem of existing fuel filter immersion type airtightness detection in dependence on artificial clamping, operation is complex, efficiency is low, detection accuracy is insufficient and water pollution.The device includes base, draw jaw mechanism, sealing sleeve, linear drive mechanism, upper sealing assembly, pressure detection component and electric control device;Draw jaw mechanism is used to fix fuel filter flange, linear drive mechanism drives sealing sleeve to move down, so that the bottom of fuel filter and the lower sealing ring of base form lower seal, upper sealing assembly and sediment cup mouth form upper seal, jointly constitute pressure-maintaining space, detection space is formed between base and sealing sleeve, and pressure detection component collects detection space pressure.The utility model replaces manual operation by automatic fixation sealing, dry-state pressure-maintaining detection avoids water pollution, improves detection efficiency and accuracy, adapts different model products, and change type is convenient.