SU1305471A1 - Walking rigidity compensating device - Google Patents

Abstract

The invention relates to vibration insulating devices that can be used in the suspensions of ship propulsion systems. The aim of the invention is to reduce the dynamic forces transmitted to the protected object at the time of adjusting the variable load corrector due to the interaction of the stops 8 and 9 with the main gear 12 mounted on the slider 6 and coupled to the rack 11, which is fixed to the rod 1, associated with a vibrating object 2. 1 c.p. f-ly, 2 ill. (L. 9ig.1

Description

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1 1305471

The invention relates to vibration-sensing devices that can be used in the suspensions of ship propulsion systems.

The aim of the invention is to reduce the dynamic forces transmitted to the protected object at the time of adjusting the offset to a varying load due to the interaction of the stops with a gear wheel mounted on the slider and coupled to the rack mounted on the rod.

FIG. 1 shows the walking stiffness corrector, a general view; in fig. 2. - the same, with an additional gear wheel.

The walking stiffness corrector contains a stem 1 connected to a vibrating object 2 and through an elastic element 3 to a protected object 4, a spring 5 cantilever mounted on the protected object 4, a slider 6 frictionally connected to the stem 1, mounted on the protected object 4 spring-loaded using springs 7, stops 8 and 9, prismatic knife 10 for interacting with spring 5 through slider 6 and toothed rack 11 mounted on rod 1 and to main slide 12 on slider 6, coupled to gear rack 11 and intended for interlocking odeystvi with limiters 8 and 9 To reduce frictional forces between the object to be protected 4N rod 1 usta20

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rolling bodies 13 are provided, and to ensure sliding of the slider 6 on the rod 1 with an abrupt change in load P by a large amount, stops 14 and 15 are installed.

In the embodiment (FIG. 2), the walking stiffness corrector comprises a gear wheel 12 and an additional gear wheel 16 which is coaxially mounted with it, also intended to interact with limiters 8 and 9, which, together with the additional gear wheel 16, can be performed, for example, ratchet mechanism.

To reduce the force transmitted to the object to be protected 4, the diameter of the additional gear wheel 16 is chosen larger than the diameter of the gear wheel 12. The shag stiffness corrector works as follows.

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With a constant force P and oscillations of the vibrating object 2, the rod 1 with the slider 6, the gear rack 11 and the main gear wheel also oscillates. Since the distance between the gear wheel 12 and the stops 8 and 9 along the vertical axis is chosen not less than the amplitude of oscillation of the vibrating object 2, this wheel 12 with a constant P does not interact with the stops 8 and 9. The prismatic blade 10 performs rocking movements around point of contact with the spring 5, and the corrector has a corrective effect on the stiffness of the elastic element 3.

When changing, for example when increasing, the load P, the elastic element 3 begins to compress. At the first movement of the vibrating object 2 in a cycle of oscillations down, the main gear wheel 12 will engage with the stop 9 and rotate around its axis counterclockwise.

Since this wheel is engaged with the toothed rack 11, the slider 6 will slip upward with respect to the stem 1.

When the vibrating object 2 moves in the same oscillation cycle upward, the slider 6 again engages the dry friction forces with the rod 1. The gear wheel 12 moves upwards.

5 with respect to limiter 9 without rotation, since the latter is designed as a ratchet mechanism.

If the load P continues to increase, then in the next cycle, the adjustment process is repeated.

Thus, the walking stiffness corrector ensures that the prismatic knife 10 is held in the area of its working movements at any value of the load P.

When the slider 6 slides to the rod i between them, a friction force arises, which ensures the transmission of dynamic forces through the gear wheel 12 and the stop 9 to the protected object 4.

When reducing the load P, the elastic element 3 expands and the gear

5, the wheel 12 is engaged with the limiter 8. In this case, a restructuring process similar to the known one occurs.

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The pacing stiffness corrector works in a similar way with the only difference that an additional gear wheel 16 interacts with limiters 8 and 9.

. The use of the walking stiffness corrector reduces the dynamic loads on the protected object at the time of its adjustment, while in the version with an additional gear wheel, the diameter of which is 2 times larger than the diameter of the main gear wheel, the dynamic load is reduced by 33%.

Claims (2)

1. A walking stiffness corrector containing a rod connected to a vibrating object, a spring mounted on the protected object, a slider, frictionally coupled with a rod, limiters and a prismatic knife installed on the protected object to interact with the spring through a slider, so that in order to reduce the dynamic forces transmitted to the protected object at the time of the adjustment of the corrector to a varying load It is equipped with a gear rack mounted on a rod and a gear wheel on a slider coupled to the latter and intended to interact with limiters. 2. The corrector according to claim 1, characterized in that it is provided with a coaxially mounted with the main gear and also an additional gear wheel, which interacts with the limiters, whose diameter is larger than the main one. Fi & .1 Editor A. Petrov Compiled by E. Savostin Tehred V. Kadar Order 1415/36 Circulation 812 VNIIPI USSR State Committee on inventions and discoveries 113035, Moscow, Zh-35, 4/5 Raushsk nab. Production and printing company, Uzhgorod, st. Project, 4 Proofreader A. Zimokosov Subscription