Shock absorber for electric pallet truck

Abstract

The invention discloses a suspension device of an electric pallet truck. The suspension device of the electric pallet truck comprises a drive installation board used for installation of a drive unit, the drive installation board is provided with a connection rod mechanism, the connection rod mechanism is movably connected with a truck frame of the electric pallet truck, the drive installation board is provided with a compressed spring, and the top end of the compressed spring is provided with an adjusting mechanism for adjusting the pressing force of the compressed spring. According to the suspension device of the electric pallet truck, the drive installation board operates synchronously and stably under driving of synchronous rotation of the connection rod mechanism; the adjusting mechanism adjusts the compressed spring and enables the compressed spring to have different pressing forces, the connection rod mechanism is matched with the reactive force of the compressed spring to effectively compensate for wheel pressure of a drive wheel, the phenomena such as slipping and hard steering caused by changes of wheel pressure of the drive wheel are avoided, impact to the truck by the road surface is also reduced greatly, the suspension function is achieved, and the driving comfort level of the whole truck is improved; meanwhile, the adjusting mechanism has the advantages of being simple in structure and convenient to operate, adjustment is visual and rapid, observation is convenient, and operation is convenient.

Description

technical field [0001] The invention relates to a logistics carrier, in particular to a shock absorber for an electric pallet truck. Background technique [0002] With the rapid development of today's logistics industry and the enhancement of people's awareness of energy conservation and environmental protection, enterprises have an increasing demand for electric storage vehicles, which also means that the performance requirements for electric storage vehicles are also getting higher and higher. Electric pallet truck is exactly a kind of electric storage vehicle, and existing electric pallet truck needs two load-carrying wheels due to the restriction of structure, and two universal auxiliary wheels on a driving wheel and driving wheel both sides touch the ground simultaneously. There is a balanced relationship between the driving wheel and the two universal auxiliary wheels on the left and right. If the force on the driving wheel is too large and the force on the auxiliary w...

AI Technical Summary

Problems solved by technology

Due to the long-term use of the suspension mechanism, due to the influence of assembly accuracy and assembly clearance, asynchronous movement will occur, and the vehicle body will shake from side to side, which will affect driving comfort; at the same time, the spring pressure cannot be adjusted or adjusted through the booster cylinder. The adjustment of the oil volume of the pressurized cylinder is not easy to control, which often brings great difficulties to maintenance and debugging. The adjustment is inconvenient, so that the spring cannot play a good buffering effect, which affects the wheel pressure compensation effect of the driving wheel

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