초록 ▼

The present disclosure discloses an industrial vehicle driving in four directions and a traveling mechanism for the industrial vehicle. The traveling mechanism for the industrial vehicle driving in four directions comprises four wheel sets at bottom of the vehicle body, the wheel sets are sequential

The present disclosure discloses an industrial vehicle driving in four directions and a traveling mechanism for the industrial vehicle. The traveling mechanism for the industrial vehicle driving in four directions comprises four wheel sets at bottom of the vehicle body, the wheel sets are sequentially connected to form a quadrangle; one wheel set is a rotating wheel set, another wheel set is a reversible directional wheel set, and the axis direction of the rotating wheels is switched between two directions through the rotating action of a rotating shaft of the wheel set; the other two wheel sets are variable-state wheel sets, and the rotating wheel state are switched between a directional state and a follow-up universal state. The present disclosure has simple structure, low cost, good supporting stability, and usage range, usage efficiency and maneuvering capability of the industrial vehicle are facilitated.

대표청구항 ▼

1. A traveling mechanism for an industrial vehicle capable of driving in four directions, comprising four wheel sets arranged at a bottom of a vehicle body which can be sequentially connected to form a quadrangle, wherein one wheel set is a steering wheel set, another wheel set is a reversible direc

1. A traveling mechanism for an industrial vehicle capable of driving in four directions, comprising four wheel sets arranged at a bottom of a vehicle body which can be sequentially connected to form a quadrangle, wherein one wheel set is a steering wheel set, another wheel set is a reversible directional wheel set, and an axle direction of a rotating wheel of the reversible directional wheel set can be switched between two directions through a rotating action of a rotating shaft of the reversible directional wheel set; the other two wheel sets are variable-state wheel sets, and a rotating wheel of each variable-state wheel set can be switched between a directional state and a follow-up universal state; wherein the steering wheel set and the reversible directional wheel set are positioned at a diagonal position of the quadrangle, and the two variable-state wheel sets are positioned at another diagonal position of the quadrangle. 2. The traveling mechanism for the industrial vehicle capable of driving in four directions according to claim 1, also comprising a mode selection switch capable of switching a driving mode between a longitudinal driving mode and a transverse driving mode; when the mode selection switch is selected as the longitudinal driving mode, the rotating wheel in one wheel set in the two variable-state wheel sets adjacent to the steering wheel set is switched into a directional state, while the rotating wheel in the other wheel set of the two variable-state wheel sets is switched into a follow-up universal state; and moreover, the axle direction of the rotating wheel of the reversible directional wheel set diagonal to the steering wheel set is fixed at a position which coincides with or is parallel to an axle direction of the rotating wheel of the variable-state wheel set switched into the directional state;and when the mode selection switch is selected as the transverse driving mode, the rotating wheel positioned in the follow-up universal state in the two variable-state wheel sets adjacent to the steering wheel set is switched into a directional state, another rotating wheel positioned in the directional state is switched into a follow-up universal state, and the rotating wheel in the reversible directional wheel set diagonal to the steering wheel set rotates so as to allow the axle direction of the rotating wheel of the reversible directional wheel set to be fixed at a position which coincides with or is parallel to the axle direction of the rotating wheel of the variable-state wheel set switched into the directional state. 3. The traveling mechanism for the industrial vehicle capable of driving in four directions according to claim 2, wherein each variable-state wheel set comprises a rotating shaft driving its rotating wheel to steer, and a limiting and positioning piece capable of locking and loosening the rotating shaft to rotate and move. 4. The traveling mechanism for the industrial vehicle capable of driving in four directions according to the claim 3, wherein the limiting and positioning piece comprises a moving part; a converting piece which is connected between the moving part and the rotating shaft and is used for converting a rotating motion of the rotating shaft around an axis thereof into a linear reciprocating motion of the moving part; and a positioning piece capable of fixing the moving part so as to limit the rotating motion of the rotating shaft. 5. The traveling mechanism for the industrial vehicle capable of driving in four directions according to the claim 4, wherein the converting piece comprises a linkage rod of which one end is rotationally connected to the moving part, and a rotating arm of which one end is fixedly connected to the rotating shaft and the other end is rotationally connected to the other end of the linkage rod; rotational connection of the rotating arm and the linkage rod is positioned on an axis deviating from the rotating shaft in a horizontal direction. 6. The traveling mechanism for the industrial vehicle capable of driving in four directions according to claim 5, wherein the rotating arm comprises a working surface; the limiting and positioning piece also comprises an auxiliary positioning piece; and when the rotating wheel in the variable-state wheel set is switched into a directional state, the auxiliary positioning piece comprises a pressing surface pressing on the working surface, so that the rotating arm is fixed. 7. An industrial vehicle, comprising the traveling mechanism according to claim 2. 8. The traveling mechanism for the industrial vehicle capable of driving in four directions according to claim 1, wherein each variable-state wheel set comprises a rotating shaft driving its rotating wheel to steer, and a limiting and positioning piece capable of locking and loosening the rotating shaft to rotate and move. 9. The traveling mechanism for the industrial vehicle capable of driving in four directions according to the claim 8, wherein the limiting and positioning piece comprises a moving part; a converting piece which is connected between the moving part and the rotating shaft and is used for converting a rotating motion of the rotating shaft around an axis thereof into a linear reciprocating motion of the moving part; and a positioning piece capable of fixing the moving part so as to limit the rotating motion of the rotating shaft. 10. The traveling mechanism for the industrial vehicle capable of driving in four directions according to the claim 9, wherein the converting piece comprises a linkage rod of which one end is rotationally connected to the moving part, and a rotating arm of which one end is fixedly connected to the rotating shaft and the other end is rotationally connected to the other end of the linkage rod; rotational connection of the rotating arm and the linkage rod is positioned on an axis deviating from the rotating shaft in a horizontal direction. 11. The traveling mechanism for the industrial vehicle capable of driving in four directions according to claim 10, wherein the rotating arm comprises a working surface; the limiting and positioning piece also comprises an auxiliary positioning piece; and when the rotating wheel in the variable-state wheel set is switched into a directional state, the auxiliary positioning piece comprises a pressing surface pressing on the working surface, so that the rotating arm is fixed. 12. An industrial vehicle, comprising the traveling mechanism according to claim 8. 13. An industrial vehicle, comprising the traveling mechanism according to claim 1. 14. An industrial vehicle, comprising the traveling mechanism according to claim 1. 15. A traveling mechanism for an industrial vehicle capable of driving in four directions, comprising five wheel sets arranged at a bottom of a vehicle body, wherein one wheel set is a steering wheel set; another wheel set is a reversible directional wheel set, and an axle direction of a rotating wheel of the reversible directional wheel set can be switched between two directions through a rotating action of a rotating shaft of the reversible directional wheel set; another wheel set is a universal wheel set; and the other two wheel sets are variable-state wheel sets, and a rotating wheel of each variable-state wheel set can be switched between a directional state and a follow-up universal state; the reversible directional wheel set, the universal wheel set and the two variable-state wheel sets form a quadrangle, wherein the two variable-state wheel sets are positioned on one diagonal of the quadrangle, the reversible directional wheel set and the universal wheel set are positioned on another diagonal of the quadrangle, and the steering wheel set is positioned on a central axis of the industrial vehicle positioned between two forks.