| 摘要 |
Subject of the invention is the supporting device for internal steering mechanism for turn mechanism pull rods in tracked vehicles, intended to decrease the physical effort of tracked vehicle driver.The known patent application P.267391 "Control device for turn mechanism pull rods in tracked vehicles" consisting of a rotary column equipped with disk with guide. The guide, tips of two rollers are pivot-joined. The other ends of the rollers are pivot-joined with turn mechanism pull rods. A grip is joined to the rotary column through a pivot with its turn axis located at right angle to the rotary column axis, which creates a lever mechanism. The lever arm is supported by a spring-loaded pusher. The other end of the pusher collaborates with the lever arm, the other arm of this lever is pivot- and-slide joined with the turn mechanism pull rods, and the slide lengths are limited. The solution known from the patent application P-267391 has a substantial shortcoming that it does not decrease to a sufficient extent the force required to control the turn mechanism actuators. The purpose of the invention is elimination of this shortcoming and providing work comfort for the tracked vehicle driver.According to the invention, pushers are extended with control pistons located in piston rods that are outfitted with arbors. Piston rods are seated in cylinders are rigidly joined with rollers. In arbors, springs are seated that support pistons. A piston is advantageously provided with a drain channel, control bores and control recesses. A piston rod may be advantageously provided with control edges, chambers, and channels connecting the chambers with the cylinder's internal space. An arbor is most advantageously provided with an internal drain channel connected with the cylinder's external space.
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