Flywheel casing leakage testing device

Abstract

The invention provides a flywheel casing leakage testing device which comprises a water tank, a bottom plate is arranged in the water tank, a lifting mechanism is arranged on the bottom plate, a sealing bottom plate is fixed on the lifting mechanism, an air cylinder is fixed in the middle of the bottom of the sealing bottom plate, and the end of a piston rod is connected with a pull ring. The sealing bottom plate is provided with a cylinder body rubber pad matched with the cylinder body combination face of the flywheel casing, the sealing bottom plate and the cylinder body rubber pad are provided with corresponding air pressure monitoring holes, air inlet and outlet holes and piston rod penetrating holes, and the rear side and the right side of the sealing bottom plate are each provided with a positioning block. Third air cylinders are arranged at the positions, opposite to the square oil injection hole and the triangular oil injection hole, of the sealing bottom plate. A sealing plateand a rubber pad are fixed to the end of the piston rod. Lever cylinders are respectively arranged on the bottom plate positioned below the front part, the left side and the right side of the sealingbottom plate, and tongue depressors are arranged at the upper ends of the lever cylinders; a sealing plate is arranged on a crankshaft hole of the flywheel casing, and a hook matched with the pull ring is arranged below the sealing plate. The device is time-saving and labor-saving, can achieve the quick leakage testing, and improves the efficiency.

Description

technical field [0001] The invention relates to an air tightness detection device, in particular to a flywheel casing leakage test device. Background technique [0002] The flywheel housing is an important connecting part connecting the engine block and gearbox, and is also one of the core components of the engine. Whether there is leakage in its products directly determines whether the engine can run normally. [0003] The flywheel housings currently produced mainly rely on the quality of the castings themselves to ensure no leakage. However, due to the unstable internal quality of the castings, 1‰-15‰ of the flywheel housings have oil leakage after the engine is installed and tested. In the middle part, the entire engine must be dismantled after the oil leak, and a new flywheel housing needs to be replaced, which is labor-intensive and time-consuming, and will affect the quality of the engine due to the secondary disassembly and assembly of the engine, and the claim amount...

AI Technical Summary

Problems solved by technology

[0003] The flywheel housings currently produced mainly rely on the quality of the castings themselves to ensure no leakage. However, due to the unstable internal quality of the castings, 1‰-15‰ of the flywheel housings have oil leakage after the engine is installed and tested. In the middle part, the entire engine must be dismantled after the oil leak, and a new flywheel housing needs to be replaced, which is labor-intensive and time-consuming, and will affect the quality of the engine due to the secondary disassembly and assembly of the engine, and the claim amount for each leaking part is as high as 2000- 17,000 yuan, the OEM requires 100% of the flywheel housing to be free from leakage

[0004] "A Flywheel Shell Leak Test Device" with application number 2019202377528 proposes a flywheel shell leak test device, but the flywheel shell has many positions that need to be sealed, and each position needs to be manually sealed, and the flywheel shell parts are relatively large. This station requires at least two people to operate, and the leak testing efficiency is low. Only about 40 leaks can be tested per day, which cannot meet the production demand

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