Sand and dust test device for magnetic liquid dynamic sealing part

The invention relates to a sand dust test device for a magnetic liquid dynamic sealing part. The device comprises a test bench, independent test modules and a power driving mechanism, wherein the independent test modules and the power driving mechanism are arranged on the test bench. The device is characterized in that the independent test modules are arranged side by side, the first independent test module is connected with the power driving mechanism through a first bearing, the other independent test modules are in transmission connection with the power driving mechanism through respective transmission belts and first gears. The transmission mode of an original independent test module is improved, the structure is more reasonable, each independent test module is in transmission connection with the power driving mechanism through the corresponding transmission belt and the corresponding first gear, and therefore even if one test module breaks down, work of the adjacent test modules cannot be affected, each