| 摘要 |
1. The invention concerns a hydraulic shock absorber, particularly for body of excavator, consisting of body shield and chassis shield situated coaxially and connected by a flexible bellows, characterised in that body shield (2) has coaxial graded hole and in chassis shield (1) is mounted coaxial screw (4), whose head is situated in hole of body shield (2), and chassis shield (1) is on the inside graded increasingly from edges towards centre and consists of preferably four grades, and from the bottom has a spherical cavity, where is placed spherical bowl of bottom support (5), and flexible bellows has a form of steel spring ( 3) made of steel rings located parallel one to another and their edges are curved one towards another in inner arch of radius r=0.5/1.2 of ring's thickness and outer arch R=2.5/3.5 of ring's thickness, and on the outside curves are cut cylindrically to thickness 3.5/4.5 of ring's thickness, whereas outer rings are curved perpendicularly towards shields (1) and (2).<IMAGE>
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