Crawler belt track roller set

Abstract

The present invention relates to a crawler belt track rocker set which comprises a pair of retaining structures and a rolling shaft. Each retaining structure includes a fixed holder and a radial bearing. The fixed holder is provided with a matching face and a mounting groove. The matching face and the mounting groove are arranged in such a manner that the mounting groove is formed by the indentation of the matching face. The radial bearing is firmly placed in the mounting groove and the radial bearing is provided with an outer ring, an inner ring and a plurality of rolling objects that are connected between the outer ring and the inner ring. The outer ring abuts against the fixed holder and the inner ring, with the help of the rolling objects, rotates relative to the outer ring. The rolling shaft is provided with a rod and a pair of connecting columns. The rod is provided with two end faces. The connecting columns protrude out of the shaft core of the rod from the two end faces respectively and are sleeved and connected firmly with the inner rings of the radial bearings of the pair of retaining structures to make the rolling shaft connected in a rolling manner between the pair of the retaining structures. The crawler belt track roller set provided in the invention has a fewer number of parts and is lighter in weight. For the fewer number of parts, chances that parts go wrong and the maintenance costs for the parts are reduced accordingly. It also features advantages of highly resisting bending, being easy to mount and achieving high precision.

Description

technical field [0001] The invention relates to a supporting wheel set, in particular to a track supporting wheel set for a crawler vehicle. Background technique [0002] refer to figure 1 and figure 2 , the existing common track roller set 9 on the market usually includes a spindle 91 , a hollow rolling element 92 and a pair of fixing elements 93 . The mandrel 91 passes through the rolling element 92, and the two ends are respectively connected to the fixing element 93. The rolling element 92 is welded into one body by manual welding, robotic arm welding or large-scale high-speed friction welding equipment, and It is fixed to the crawler frame (not shown) by the fixing piece 93 . The rolling element 92 is rotatable about the spindle 91 to distribute the average vehicle weight on the upper surface of the track (not shown). Lubricating oil is filled between the rolling element 92 and the mandrel 91 to reduce the wear between the rolling element 92 and the mandrel 91, and...

AI Technical Summary

Problems solved by technology

Because the holding pin must pass through the shaft, that is, the shaft center must form a hole, so that the shaft can be classified as a hollow shaft. If the mechanical properties are compared under the premise of the same outer diameter, the resistance of the hollow shaft Both tensile and impact resistance are worse than solid shafts, and the longer the shaft center length of the hollow shaft, the more impossible it is to manufacture, so it is very difficult to manufacture

Furthermore, since the holding pin passes through the shaft, when the terrain is harsh and subjected to a momentary impact, the possibility of breaking or deforming the holding pin is high, resulting in the shaft being unable to rotate around the holding pin

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