I assume you mean “convey” because “convery” is not a word in English. The most important difference is that transport is usually used to talk about moving physical things, and convey is usually used to talk about communicating things like ideas. So, both involve a sense of movement, but the one involves physical movement and the other involves the movement of ideas/feelings. Examples: “The truck transported the coal to the port.” Compare to: “The idea that I am trying to convey is . . .”

Convey only means transport when something is carried by/in a continuous sealed container from one point to another. Goods are "transported by boats/ships/horses/cars/trains/planes/roads/highways/motorways etc". Things like electricity gas and water and sometimes grain and sand etc are transported in the "carried to sense", by pipes, cables, hoses, conveyor belts, augers from point A to point B. I hope that helps, in daily use we use "convey" like John has said, and "convey" in the other sense is used by professional people, "we need to lay pipes around the perimeter to convey water to the concrete mixers".

Convey - transport or Convoy - transport?

Convery isn’t used and transport is haha. That’s the only difference I can think.