Titan International has filed a patent for a tracked undercarriage roller assembly. The assembly includes a roller body, a shaft, a bushing, an annular chamber filled with lubricant, and a housing seat with a temperature transducer. The measuring portion of the housing seat is positioned at a radial distance between 8 millimeters and 50 millimeters from the bushing. GlobalData’s report on Titan International gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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Titan International's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

Tracked undercarriage roller assembly with temperature measurement

Source: United States Patent and Trademark Office (USPTO). Credit: Titan International Inc

A recently filed patent (Publication Number: US20230150594A1) describes a tracked undercarriage roller assembly with several innovative features. The assembly includes a roller body with a through cavity, a shaft inserted into the cavity, and a bushing interposed between the roller body and the shaft. An annular chamber filled with lubricant is located between the shaft and the bushing.

One notable feature is the housing seat obtained in the shaft, which includes an inlet portion and a measuring portion. These portions are aligned along the axial direction and allow for the placement of a temperature transducer inside the housing seat at the measuring portion. The measuring portion is positioned at a radial distance from the bushing between 8 millimeters and 50 millimeters.

The patent also mentions the use of an electronic sensor module placed in the inlet portion of the housing seat. This module is configured to output measurement signals wirelessly, including temperature data. The inlet portion includes an annular groove engaged by a stop ring to retain the electronic sensor module axially. A closing plug is also included for the inlet portion.

Other features of the roller assembly include an axially symmetrical blind cavity for the housing seat, an extension of the inlet portion in the radial direction greater than the measuring portion, and a pin inserted in a radial cavity of the shaft to integrate the shaft with an undercarriage chassis.

The temperature transducer mentioned in the patent is a thermistor with resistance that decreases with increasing temperature. Additionally, the roller body has an opening that allows the external environment to communicate with the annular chamber filled with lubricant, which is then closed by a plug.

Overall, this patent describes a tracked undercarriage roller assembly with various features aimed at improving temperature measurement and lubrication. The inclusion of a temperature transducer and electronic sensor module allows for wireless temperature monitoring, while the housing seat design and other components enhance the functionality and integration of the assembly.

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