Driven wheel floating mechanism and AGV

Abstract

The invention discloses a driven wheel floating mechanism and an AGV. The driven wheel floating mechanism comprises a mounting plate, a floating plate, an elastic piece and a trundle. The floating plate and the mounting plate form a relative space below the mounting plate, one side of the floating plate is hinged to the mounting plate, and the other side of the floating plate freely rotates clockwise or anticlockwise with the hinge point as the axis so as to compress or release the relative space of the floating plate and the mounting plate. And the elastic piece is arranged in the relative space of the mounting plate and the floating plate. The trundles are installed below the floating plate. When the relative space of the elastic piece is changed, the elastic piece elastically deforms, so that the trundle always has vertically downward positive pressure. The AGV comprises a driving wheel and a driven wheel, and the driven wheel comprises any one of the driven wheel floating mechanisms. According to the floating wheel, no track is arranged, the needed installation space is small, the situation that floating cannot be achieved due to dead pinning cannot occur, the torsional spring is adopted as an elastic piece, the elasticity change range of the torsional spring is small, and the positive pressure of the floating wheel on the ground can be kept relatively constant.

Description

technical field [0001] The invention relates to the field of AGVs, in particular to a driven wheel floating mechanism and an AGV vehicle. Background technique [0002] At present, most of the driven wheel floating mechanisms on the market use linear guide rails and elastic elements to realize the floating design of the driven wheel. Because the space required by the linear guide is relatively large, it is difficult to meet the demand in the case of limited assembly space; and if the force received by the driven wheel is at a certain angle to the sliding direction of the linear guide, the linear guide will be stuck and cannot floating case. [0003] In addition, compression springs are generally used in cooperation with linear guide rails, and compression springs have relatively high requirements for installation space. If the installation space is small, the length of compression springs in the natural state is relatively short. According to the calculation formula of compr...

AI Technical Summary

Problems solved by technology

At this time, during the floating process of the driven wheel, the change in the length of the compression spring will cause a rapid change in the elastic force of the compression spring, which cannot meet the floating amount required by the driven wheel, and the spring will lift the AGV overhead, or the elastic force of the compressed spring will vary. If it is too large, there will be no positive pressure on the ground from the driven wheel

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