KR970026043A - 4-wheel suspension of wheel type heavy equipment - Google Patents

Abstract

The present invention relates to a suspension device in which the front and rear axles (2) of a wheel type heavy equipment are pivoted with respect to the chassis frame (3) of the vehicle body and a ram cylinder (6) is installed between the chassis frame (3) and the axle (2). In addition, the ram cylinder (6) is connected through the accumulator (7) and the solenoid valve (10), the attitude adjustment between the hydraulic pump (7) and the ram cylinder (8) for supplying pressure oil to the ram cylinder (6) The solenoid valve 8 is installed, and the position sensor 12 and the two solenoid valves 8 and 10 installed in the ram cylinder 6 are connected to the electronic controller 11, while the electronic controller 11 The posture adjustment switch 13 and the suspension mode selection switch 14 are configured to be connected to each other, and the ram cylinder 6 installed on the front and rear shafts 2 is used for the accumulator according to a signal input from the position sensor 12. By controlling the solenoid valve 10, the shock can be effectively absorbed, and the inclined place By leveling the upper vehicle body if the operation is to stabilize the posture.

Description

4-wheel suspension of wheel type heavy equipment

As this is a public information case, the full text was not included.

1 is an exploded perspective view showing a suspension device installed on a rear axle of a wheel type heavy equipment according to the present invention, and a ram cylinder installed between the rear axle and the chassis frame of the vehicle.

FIG. 2 is a schematic view showing a state in which the rear axle and the ram cylinder shown in FIG. 1 are connected to the underframe of the vehicle;

3 is a hydraulic circuit diagram for selectively operating a ram cylinder installed between a rear axle and a chassis frame of a vehicle according to the present invention;

4 is a perspective view illustrating a state in which a front axle is connected to a lower frame of a vehicle in a conventional general wheel type heavy equipment,

5 is a perspective view illustrating a state in which a rear axle is connected to a lower frame of a vehicle in a conventional general wheel type heavy equipment.

Claims (2)

Ram cylinders 6 are respectively installed between the front and rear axles 2 and the chassis frame 3 of the heavy equipment, and the accumulators 9 are connected to the ram cylinders 6 through solenoid valves 10 for accumulators. Position sensors 12 are installed in the ram cylinders 6 to detect the displacement, and the solenoid valve 10 and the position sensors 12 are connected to the electronic controller 11 so that the position sensors 12 The four-wheel suspension of the wheel-time heavy equipment, which is configured to receive an electrical signal for operating the solenoid for the accumulator (8) in the electronic controller (11) in accordance with the operation of. According to claim 1, wherein the electronic controller 11 is connected to the posture adjustment switch 13 for adjusting the posture of the heavy equipment and the suspension motor selection switch 14 for selecting the suspension motor, respectively, the RAM A posture adjusting solenoid valve 8 for controlling and supplying the hydraulic oil discharged from the hydraulic pump 7 is installed in the cylinder 6, and the posture adjusting solenoid valve 8 is connected to the electronic controller 11 to adjust the posture adjusting switch. The posture adjustment solenoid valve 8 is switched according to the selected angle and the displacement position detected by the position sensor 12, and the switching operation of the solenoid valve 8 is performed in accordance with the mode selection switch 14. The four wheel suspension system of the wheel type which locks and maintains the position of the adjusted body as it is. ※ Note: The disclosure is based on the initial application.