Power-assisted steering driving device

Abstract

The invention discloses a power-assisted steering driving device comprising a shock-proof support, a running driving motor, a steering driving motor, a reduction box and a driving wheel. The shock-proof support comprises an upper bracket, a lower bracket, a driving base, two slide bars, damping springs, an adjusting and driving oil cylinder, an upper spring seat, an adjusting spring and a lower spring seat. The upper bracket and the lower bracket are fixed on a frame, the two slide bars mounted vertically are arranged on the upper bracket symmetrically, and both the upper end and the lower end of each slide bar are sleeved with guide rings. By an elastic adjusting structure composed of the adjusting and driving oil cylinder, the upper spring seat, the adjusting spring and the lower spring seat on the shock-proof support, auxiliary flexible support can be provided for the damping springs, the distance from the adjusting spring and a driving base can be adjusted by driving the adjusting and driving oil cylinder to work, and accordingly shockproof intensity is adjusted; shockproof effect is guaranteed, different shockproof requirements can be met, and accordingly a driving system can work more stably.

Description

technical field [0001] The invention relates to a power steering drive device. Background technique [0002] In the prior art, in order to facilitate the steering of large-tonnage electric pallet trucks, an electronic power steering system will be installed. The signal is fed back to the motor used to control the rotation of the steering wheel. The electronic power steering system needs to integrate the steering structure and the driving drive structure, so the structure is relatively complicated. How to ensure the reliable and stable operation of the system is a problem that must be considered during design. The shock-absorbing structure design of the existing electronic power steering system is unreasonable, so that when the electric pallet truck is subjected to the impact caused by large potholes, it is easy to cause structural damage to the system and affect normal use. Contents of the invention [0003] The object of the present invention is to overcome the above-men...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in order to facilitate the steering of large-tonnage electric pallet trucks, an electronic power steering system will be installed. The signal is fed back to the motor used to control the rotation of the steering wheel. The electronic power steering system needs to integrate the steering structure and the driving drive structure, so the structure is relatively complicated. How to ensure the reliable and stable operation of the system is a problem that must be considered in the design

The shock absorber structure design of the existing electronic power steering system is unreasonable, resulting in the structural damage of the system when the electric pallet truck is subjected to the impact caused by large potholes, affecting normal use

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