Vibration suppressing device for wheeled construction equipment

Details Vibration suppressing device for wheeled construction equipment Vibration suppressing device for wheeled construction equipment

1990-08-16

1992-05-26

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

60413, 60415, 414685, B66C 2326, A01B 63111, F16D 3102

Patent

active

051161885

ABSTRACT:
A vibration suppressing device for a wheeled construction equipment having a wheeled chassis, a working device operatively supported on the wheeled chassis, and a hydraulic circuit including hydraulic actuators for operating the working device for up-and-down motion. The vibration suppressing device includes an accumulator filled with a pressurized gas for suppressing vibrations, and a mode changeover valve for connecting the accumulator to the load bearing pressure chambers of the hydraulic actuators in a travelling mode in which the wheeled construction equipment operates for running, and for disconnecting the accumulator from the load bearing pressure chambers of the hydraulic actuators in a working mode in which the wheeled construction equipment operates. When the working device is held at a height in the range of zero to a minimum limit height from the road, the vibration suppressing device meets conditions: P.sub.G x V.sub.A.sup.n .ltoreq.P.sub.H x V.sub.F.sup.n and P.sub.G .ltoreq.P.sub.H, where P.sub.G is the pressure of the gas initially sealed in the accumulator, V.sub.A is the capacity of the accumulator, P.sub.H is static holding pressure maintained in the load bearing pressure chambers of the hydraulic actuators in the travelling mode, V.sub.F is volume variation in the load bearing pressure chambers of the hydraulic actuators, and n is a coefficient of adiabatic change.

REFERENCES:
patent: 3122246 (1964-02-01), Freedy et al.
patent: 3779017 (1973-12-01), Fujisawa et al.
patent: 3814265 (1974-06-01), Miller
patent: 3949892 (1976-04-01), Ohms
patent: 3971215 (1976-07-01), Baron et al.
patent: 4046270 (1977-09-01), Baron et al.
patent: 4120364 (1978-10-01), Wooldridge
patent: 4142368 (1979-03-01), Mantegani
patent: 4202174 (1980-05-01), Grigorenko et al.
patent: 4286432 (1981-09-01), Burrows et al.
patent: 4341149 (1982-07-01), Dezelan
patent: 4367673 (1983-01-01), Krueck et al.
patent: 4590763 (1986-05-01), Augoyard et al.
patent: 4636133 (1987-01-01), Hess
patent: 4674638 (1987-06-01), Oliphant
patent: 4706930 (1987-11-01), Lexen
patent: 4738101 (1988-04-01), Kubik
patent: 4761954 (1988-08-01), Rosman
patent: 4809586 (1989-03-01), Gage et al.
patent: 4953723 (1990-09-01), Saotome et al.

Affiliated with

Also associated with

Rating

Vibration suppressing device for wheeled construction equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration suppressing device for wheeled construction equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration suppressing device for wheeled construction equipment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-415458