| 摘要 |
1. A device for disassembling pin joints in the suspension-system elements of motor trucks and buses, designed based on a single-acting piston-type hydraulic servomotor, wherein in the hydraulic servomotor (1) there is a replaceable piston-rod (7) that functions as a mandrel with which to push out the pins and which is fixed in the piston (6) by means of a screw joint and is positioned in the cylinder (8) that is closed on the end face with a guide (9) and a screw plug (10) while on the back side it has a cylindrical lid (11) inside of which there is a return spring (12) with the ends of it wound around the nuts (13) such that one of them is screwed on the piston (6) and the other is screwed on a stretching sleeve (14) which is screwed in the bottom of the lid (11) which ends with a quick-release joint with an inlet valve (15), on the end face of the servomotor (1) there being screwed a replaceable attachment (2) with a through opening of which the diameter corresponds to that of the pin being pushed out, while on the back side of the servomotor (1) there is a sliding sleeve (4) that has in it a replaceable retaining mandrel (5) which on one end has a dead hole (16) and on the other end has a pin (17) such that the diameters of each of them correspond to the diameter of the pin being pushed out.<IMAGE>
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