Land vehicles – Wheeled – Running gear
Patent
1989-03-22
1991-01-15
Rice, Kenneth R.
Land vehicles
Wheeled
Running gear
280686, B60G 504
Patent
active
049848178
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to devices for absorption of dynamic loads and, more particularly, to fully articulated suspensions of tandem wheels of a transport vehicle.
BACKGROUND OF THE INVENTION
Nowadays a widespread development of transport facilities, their diversity and functional capabilities has imposed new requirements for the design of shock-absorbing suspensions, particularly articulated arm suspensions.
Known in the prior art is a fully articulated suspension of tandem wheels of a transport vehicle (GB, B, 1374548) having a frame with axles, said suspension comprising at least one pair of double-arm levers, each mechanically linked with the frame and the corresponding axle of the transport vehicle, means for absorption of dynamic loads, each articulated to one the arms of the corresponding double-arm lever, and torque reaction rods, each linked by one end with the frame and by the other end with the corresponding axle of the transport vehicle.
In this suspension the means for absorption of dynamic loads comprises a compression coil spring whose ends are mechanically linked with the corresponding arms of double-arm levers.
However, owing to the fact that the arms of the double-arm lever in this suspension are considerably stiff, the compression coil spring should absorb all the dynamic loads arising in the ascending axle which causes the linearity of the flexible characteristic of the suspension.
Besides, the compression coil spring in this suspension provides for absorption of the dynamic loads arising only during the working stroke of the suspension which impairs absorption of the dynamic loads originated during the rebound stroke.
SUMMARY OF THE INVENTION
The main object of the present invention is to provide an articulated suspension of tandem wheels of a transport vehicle having such additional means and also means for absorption of the dynamic loads which would make it possible to increase reliability of the suspension and to raise quietness of movement of the transport vehicle.
This object is achieved by providing a fully articulated suspension of tandem wheels of a transport vehicle having a frame with axles, sais suspension comprising at least one pair of double-arm levers each mechanically linked with the frame and the corresponding axle of the transport vehicle, means for absorption of dynamic loads each of said means being articulated to one the arms of the corresponding double-arm lever, and torque reaction rods, one end of each rod being connected with the frame while its other end is connected with the corresponding axle of the transport vehicle wherein, according to the invention, said suspension additionally contains as many means for the transmission of static and dynamic loads as there are the double-arm levers said loads arising due to interaction of each axle of the transport vehicle with the corresponding means for absorption of dynamic loads via the other arm of the double-arm lever, each of them being mechanically linked with the corresponding axle of the transport vehicle and with the other one of said arms of the double arm lever, the means for absorption of dynamic loads comprising two stirrup-shaped plate springs which ensure a constant contact between each means for the transmission of static and dynamic loads with the corresponding axle, each of said springs being articulated with the first of said arms of the corresponding double-arm lever.
It is expedient that the stirrup-shaped plate springs in the fully articulated suspension be arranged in parallel with each other, the ends of each spring being articulated with the corresponding double-arm levers of the corresponding pair of double-arm levers.
It is desirable that the stirrup-shaped plate springs in the fully articulated suspension be arranged in tandem, one end of one of said springs being mechanically linked with the closer end of the other spring while their other ends be articulated with the corresponding double-arm levers of the corresponding pair of double-arm levers.
It is expedie
REFERENCES:
patent: 2206359 (1940-07-01), Larison
patent: 2665142 (1954-01-01), Talbert
patent: 3261622 (1966-07-01), Hutchens
patent: 3367677 (1968-02-01), Preddy, Jr.
patent: 3806148 (1974-04-01), Boulton
patent: 4570971 (1986-02-01), Perlini
Azamatov Ramil A.
Nedorezov Vladimir A.
Oblovatsky Anatoly K.
Smirnov Igor G.
Zamitter Mikhail N.
Kievsky Injenerno-Stroitelny Institut
Rice Kenneth R.
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