Problems existing in 2CY gear oil pump mechanical seal and its modification plan
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Its main features are as follows:
(1) The moving ring of the cone mechanical seal is a cone ring. With the wear of the static ring, the length L of the contact busbar increases, and the outer diameter of the static ring also increases.
(2) The length of the sealing contact surface busbar is very short (0.3-0.5mm at the beginning of stable operation), so the temperature difference between the inner and outer surfaces of the contact end face is small, and the temperature rise is low, which reduces the degree of adhesive wear. The static ring has a large compressive cross section and a small pressure deformation.
(3) Both the sealing sleeve and the moving ring have a certain floating property, so that the sealing surface can always maintain a good contact state, and the suspended particles in the medium are not easy to enter the sealing surface. The direction of the media leakage is at an angle to the direction of the centrifugal force, which is beneficial for reducing leakage.
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