Screw protecting device for screw headstock gear
A technology of protection device and hoist, which is applied in coastline protection, water conservancy engineering, sea area engineering, etc. It can solve the problems of screw corrosion, screw can not provide fundamental protection, erosion, etc., so as to prolong the service life and ensure that it is not eroded , to avoid the effect of erosion
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[0017] According to the present invention, the protective casing 1 is arranged on the outside of the screw 51 of the screw hoist 5, the protective casing 1 wraps the screw 51 inside, and the side of the protective casing 1 is provided with several ventilating seats protruding from the protective casing 1 2. The air-permeable seat 2 communicates with the space formed by the protective sleeve 1 and the screw rod 51; the air-permeable seat 2 is provided with an air-permeable bolt 3 that cooperates with the air-permeable seat 2.
[0018] The protective casing 1 is fixedly connected to the screw hoist 5 through connecting bolts 4 and washers.
[0019] The joint of the air-permeable seat 2 and the air-permeable bolt 3 is covered with a sealing ring 6 .
[0020] The air-permeable seat 2 is arranged obliquely downward.
[0021] The working process of the present invention is as follows: first, the protective casing 1 is connected and fixed with the screw hoist 5 with the connecting b...
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Abstract
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