A retractable suspension

Abstract

The invention discloses a retractable suspension bracket. One end of each of upper cross arms and lower cross arms is hinged with a vehicle body, the other end of each of the upper cross arms and the lower cross arms is correspondingly hinged with two ends of a supporting bracket, one end, hinged with the supporting bracket, of each lower cross arm is used for being fixedly connected with a walking mechanism and further hinged with one end of a shock absorber , the other end of the shock absorber is hinged with one end of an active arm, the other end of the active arm can be rotationally hinged with the vehicle body through a rotary driving part; amphibious equipment is transferred from land to water, the rotary driving part drives the active arm to rotate earthward for driving all of the upper cross arms and the lower cross arms to rotate upwards through the hinged shock absorber, so that the walking mechanism is upwards overturned to be lifted, when the amphibious equipment is transferred from water to land, the rotary driving part drives the active arm to rotate reversely so as to release the walking mechanism, and further make each of the upper cross arms, the shock absorber and each of the lower cross arms support the walking mechanism in a double wishbone manner. The retractable suspension bracket disclosed by the invention has the advantages of scientific and reasonable design, simple and compact structure, good shock absorption effect and good retraction effect.

Description

technical field [0001] The invention mainly relates to the field of amphibious platforms, in particular to a retractable suspension for amphibious platforms. Background technique [0002] Amphibious mobile equipment is of great significance to my country's maritime transportation, marine development and other activities. A high-performance amphibious platform requires not only a high surface speed, but also a high cross-country performance. A major factor limiting the surface speed of amphibious equipment is the navigation resistance of the vehicle body. Taking into account the special requirements of amphibious equipment. [0003] The existing amphibious equipment has the following technical problems: [0004] (1) The overall height of the suspension of the existing amphibious equipment is high, which increases the center of gravity of the amphibious equipment, reduces the stability of driving on land, increases the risk of tilting and overturning, and also increases the...

AI Technical Summary

Problems solved by technology

[0004] (1) The overall height of the suspension of the existing amphibious equipment is high, which increases the center of gravity of the amphibious equipment, reduces the stability of driving on land, increases the risk of tilting and overturning, and also increases the weight of the amphibious equipment. Difficulty of modeling design

[0005] (2) The shock absorption effect of the suspension of the existing amphibious equipment is not good, and the force and moment between the traveling mechanism and the vehicle body cannot be transmitted well when driving on land, which seriously affects the driving effect on land

At the same time, because the impact force transmitted to the vehicle body cannot be effectively alleviated when the vehicle is running, the vehicle body vibrates greatly, and the retractable driving equipment of the suspension is easily damaged by the repeated vibration of the driving arm, and the maintenance cost is high.

[0006] (3) The suspension of the existing amphibious equipment has poor stability. Due to the need to constantly change the use of the running mechanism, the running mechanism cannot be put in place when it is turned from land to water, and from stowed to put down, making the running mechanism Easy to cause damage when used on land

[0007] (4) A major factor that limits the water surface speed of amphibious equipment is the navigation resistance of the vehicle body. However, the vertical retraction method of the running mechanism of the existing amphibious equipment has a small retractable stroke and poor retraction effect, resulting in eddy currents in the running mechanism. The loss is large, and a good effect of drag reduction and speed-up cannot be achieved, which makes the navigation resistance of the car body large and the propulsion efficiency low

[0008] (5) The existing amphibious equipment suspension retractable mechanism is complicated, and there are many connecting parts, resulting in large suspension volume

Some are driven by a push rod, which makes the retracting speed slow, the retracting efficiency is low, and the retracting effect is not good, which seriously affects the rapid transformation and use of amphibious equipment.

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