Roller wheel for track belt-type traveling vehicle

Abstract

A roller wheel for a track belt-type traveling vehicle, configured in such a manner that uneven contact between a roller including a bearing, such as a bush, and a shaft is minimized. A roller wheel for a track belt-type traveling vehicle, comprising a shaft (2), a roller assembly (3a) disposed on the outer periphery of the shaft (2), and a bush (4) for rotatably supporting the roller assembly (3a) on the shaft (2). The roller assembly (3a) is provided with an inner roller shell (12), an outer roller shell (13), and a joining ring (14). The inner roller shell (12) is disposed on the inner side close to a vehicle frame (8) and has in the outer peripheral section at the outer end thereof an annular groove (15a) having a ridge (15b) located in the inside thereof. The outer roller shell (13) is disposed outside the inner roller shell (12) and has an annular groove (25a) having a ridge (25b) in the inside thereof. The joining ring (14) engages with both the ridges (15b, 25b) of the annularrings (15a, 25a) to join the roller shells (12, 13) together.

Description

technical field [0001] The invention relates to a running wheel of a crawler-type traveling vehicle, in particular to a running wheel of a crawler-type traveling vehicle which is arranged on the non-grounding side of the crawler and supported on the vehicle body frame. Background technique [0002] Mainly when working on uneven ground, crawler vehicles such as bulldozers and hydraulic excavators are generally used. In the crawler-type traveling vehicle, driving wheels and idler wheels are provided at the front and rear positions on the left and right sides of the traveling body, and endless crawler belts are wound around the driving wheels and the idler wheels. In the tracked vehicle, a plurality of runners are provided between the drive wheel and the idler wheel on the non-contact surface side of the track. A plurality of rotating wheels are supported on the vehicle body frame, and the plurality of rotating wheels can secure the ground force during driving and stably suppo...

AI Technical Summary

Problems solved by technology

[0007] However, if the coupling rings are pressed into the outer peripheries of the left and right roll sleeves, the portions of the roll sleeves where the coupling rings are pressed are deformed toward the inner peripheral side, and as a result, the inner peripheral portions of the roll sleeves are easily deformed.

The inner peripheral portion of the sleeve is rotatably supported on the shaft by the bushing, however, if a part of the inner peripheral portion of the sleeve is deformed toward the inner peripheral side, uneven contact will occur between the bushing and the shaft )

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