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What is the role and type of concrete pump suspension?

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What is the role and type of concrete pump suspension?

Release time:2019-01-23 Author: Click:

The suspension on a small concrete pump truck is a general term for all force transmission devices between the frame and the bridge. Affected by the continuous development of the pump truck industry, modern small concrete pump truck suspensions come in a variety of different structural forms. The basic components are elastic elements, guides, dampers and stabilizer bars. 

1. The function of the suspension is to transmit the vertical reaction force, the longitudinal reaction force and the lateral reaction force of the road surface on the wheel and the torque caused by these reaction forces to be transmitted to the frame to ensure the small concrete pump truck. Driving normally. 

2, the type of suspension, pump suspension can be divided into the following categories: non-independent suspension, its structural characteristics are that the wheels on both sides are connected by an integral axle, the wheels together with the axle through the elastic suspension and Frame connection. When one side of the wheel jumps due to uneven road, it must cause the other side of the wheel to swing in the lateral plane of the pumping truck, so it is called a non-independent suspension. Non-independent suspensions are widely used in front and rear suspensions of trucks because of their simple structure and reliable operation. In cars, the non-independent suspension is only used for the rear axle. The independent suspension has the structural feature that the axle is broken, and the wheels on each side can be separately connected to the frame through the elastic suspension, and the wheels on both sides can jump separately without affecting each other. It is called an independent suspension.

What is the role and type of concrete pump suspension?

The cross arm suspension system refers to an independent suspension system in which the wheels oscillate in the transverse plane of the vehicle, and is divided into a double wishbone type and a single cross arm type suspension system according to the number of the cross arms. The single cross arm type has the advantages of simple structure, high roll center and strong anti-rolling ability. However, with the increase of the speed of modern cars, the high center of the roll will cause the wheel to change greatly when the wheel jumps, the tire wear will be intensified, and the vertical force transfer of the left and right wheels will be too large during the sharp turn, resulting in an increase in the rear wheel camber. The rear wheel has a side-to-side stiffness, resulting in a severe condition of high-speed tail. The single wishbone independent suspension system is mostly applied to the rear suspension system, but it is not suitable for high speed driving. The multi-link suspension system is a suspension system in which (3-5) members are combined to control the position change of the wheel. The multi-link type enables the wheel to oscillate about an axis at a fixed angle to the longitudinal axis of the vehicle. It is a compromise between the cross arm type and the trailing arm type, and the angle between the axis of the swing arm and the longitudinal axis of the vehicle is appropriately selected. The advantages of the cross arm type and the trailing arm type suspension system can be obtained to different extents, and can meet different performance requirements. The main advantage of the multi-link suspension system is that the wheel track and the toe change are small when the wheel is bouncing, and the car can be smoothly steered according to the driver's intention regardless of the driving or braking state. The disadvantage is that the car is in a car. There is a shaft swing phenomenon at high speed. Leaf spring type non-independent suspension, pump plate leaf springs are longitudinally placed. The structure in which the hinges and the lifting lugs fix the two ends of the leaf spring to the frame is a widely used pump chassis front suspension, which is a typical structure of the longitudinal leaf spring type non-independent suspension.

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