Crawler belt removal and installation jig

Abstract

This tool is a crawler belt removal / attachment jig used to disengage the tension roller from the protrusions on the core metal near the rear end of the crawler belt to be attached or detached when attaching or detaching a crawler belt attached to a work machine such as a combine harvester. The tool includes a rear abutment portion that includes a removable, approximately arch-shaped accessory and abuts against the inside of the crawler belt near the rear end of the crawler belt to be attached or detached, a pusher portion that, in conjunction with an external power source, pushes the rear abutment portion toward the rear end of the crawler belt to be attached or detached, and a front abutment portion with multiple recesses for fitting onto the drive roller body or drive roller rotation shaft near the front end of the crawler belt to be attached or detached. As shown in Reference Figure 2, which shows an example of how the tool is used, if the side shape near the rear end of the crawler belt to be attached or detached is semicircular, the approximately arch-shaped accessory can be detached and used. When the rear abutment portion of this article is abutted against the inside near the rear end of the crawler belt to be detached, and one of the multiple recesses of the front abutment portion of this article is fitted into the drive roller body or the rotating shaft of the drive roller, and then the extrusion portion of this article is rotated to the right with an impact wrench or the like, the rear abutment portion pushed out by the rotated extrusion portion pushes the crawler belt to be detached toward the rear end of the crawler belt, so that the crawler belt to be detached extends toward the rear end of the crawler belt.This means that the engagement between the protrusions on the core wire of the crawler belt and the tension roller can be released without using brute force or a crowbar, making the work of detaching a crawler belt from a work machine such as a combine harvester both labor-saving and safe.In addition, even when engaging the protrusions on the core wire of the crawler belt with the tension roller, the time required to complete the positioning state that is performed before engaging the protrusions on the core wire of the crawler belt with the tension roller is shortened, making the work of attaching a crawler belt to a work machine such as a combine harvester both labor-saving and safe.

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