Annular rail guide vehicle active steering device adapting to different rail radii

Abstract

The invention provides an annular rail guide vehicle active steering device adapting to different rail radii. Two steering units of the same structure are connected with a front part and a rear part of a vehicle frame. Each steering unit comprises an inner wheel support and an outer wheel support, the tops of the inner wheel support and the outer wheel support are connected with the end portions of the inner side and the outer side of the vehicle frame, and two wheels are arranged at the bottoms of the two wheel supports. One end of each adjustable connecting rod component is hinged to the extending-out part of the corresponding outer wheel support, and the other end of each adjustable connecting rod component is hinged to a position-adjustable sliding block on a rocker component. The twoends of each fixed-length connecting rod are hinged to the corresponding rocker component and the corresponding inner wheel support. The two sides of the wheel on each inner wheel support are providedwith guide wheels clamping and holding an inner guide rail from the two sides. Each rocker component is connected with a drive unit. The annular rail guide vehicle active steering device is simple instructure, and through stepless adjustment of the length of the rocker components and the length of the adjustable connecting rod components, a vehicle can meet the traveling requirements of different rail radii, has an active steering function and is easy to install and adjust.

Description

technical field [0001] The invention relates to the technical field of warehouse handling equipment, in particular to a rail trolley device that can adapt to different turning radii through device adjustment, realize pure rolling motion of wheels on rails and can actively steer. Background technique [0002] After the car enters the curve, under normal circumstances, the inner and outer wheels need different deflection angles. Such as figure 1 As shown, after the four wheels of the car have completely entered the curve, it is necessary to ensure that each wheel moves along the tangential direction of its own arc, and the deflection angle θ of the inner and outer wheels is different 1 , θ 2 The following relationship needs to be satisfied: [0003] [0004] [0005] Among them, θ 1 , θ 3 represent the deflection angles of the two outer wheels respectively, θ 2 , θ 4 respectively represent the deflection angles of the two inner wheels, θ 1 = θ 3 , θ 2 = θ 4 . ...

AI Technical Summary

Problems solved by technology

[0007] The resulting problem is: when the car is turning, the inner and outer wheels should not have turned the same angle, but now they are forced to turn the same angle, so that one of the wheels turns in the same direction (the radial direction of the wheel) as it actually is. The direction of travel (the tangent direction on the arc point of the guide rail where the wheel is located) is inconsistent, causing the wheel and the guide rail to slide relative to each other, which not only reduces the speed of the vehicle, generates noise, but also greatly reduces the service life of the wheel and guide rail, seriously affecting the warehouse goods. The transportation of the material reduces the transfer rate of the material, and it is also not conducive to the maintenance and maintenance of the equipment.

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