Track chain component with hardfacing wire covering layer

A technology for surfacing welding wire and crawler chain, which is applied to crawler vehicles, vehicle parts, solid diffusion coating and other directions, and can solve problems such as limiting the thickness of the outer layer.

Pending Publication Date: 2022-05-13
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may limit the thickness of the outer layer

Method used

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  • Track chain component with hardfacing wire covering layer
  • Track chain component with hardfacing wire covering layer
  • Track chain component with hardfacing wire covering layer

Examples

Experimental program
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Embodiment Construction

[0017] Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0018] figure 1 is a schematic diagram of an exemplary system including a tracked machine 100 having one or more components formed in accordance with an exemplary embodiment of the invention. The exemplary embodiment of machine 100 includes a tracked undercarriage 120 . Machine 100 is also referred to herein interchangeably as "tracked machine" 100 and / or "machine" 100 . In other embodiments, machine 100 may be any suitable machine having tracked undercarriage 120, such as a bulldozer, loader, excavator, tank, backhoe, drill, trencher, or any other on-road or off-road vehicle. road vehicle.

[0019] Machine 100 includes a frame 140 having a first track chain assembly 160 disposed on a first side 110 thereof and a second track chain assembly (not shown) disposed on a second side (not shown) thereof. The second side is in opposing relationship to th...

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PUM

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Abstract

A steel track chain component (162, 164, 166, 168, 202, 204), such as a track bush (204), may be formed with a carburized portion (404), a hardfacing wire portion (412), and a core portion (410). The core portion 410 may be softer than the carburized portion 404, which may in turn be softer than the hardfacing wire portion 412. This configuration of various portions of the component (162, 164, 166, 168, 202, 204) may allow for relatively high wear resistance and toughness of the component (162, 164, 166, 168, 202, 204). The core portion 410 may be predominantly of a ferritic crystal structure, while the carburized portion 412 and the hardfacing wire portion 412 may include a martensite and / or austenite crystal structure. The carburized portion (412) may be formed by carburizing the track chain component (162, 164, 166, 168, 202, 204) in a heated and carbon-rich environment. The hardfacing wire portion (412) may be formed by welding a hardfacing wire alloy on at least a portion of the carburized portion (404).

Description

technical field [0001] The present invention relates to track chain components having a hardfacing wire overlay. More specifically, the present invention relates to track chain components having hardfacing wires for improved wear life. Background technique [0002] Tracked machines are widely used in construction, mining, forestry and other similar industries. The undercarriage of this track-type machine utilizes track assemblies rather than wheels to provide ground-engaging propulsion. Such track assemblies may be preferred in environments where generating sufficient tractive effort is problematic, such as those often found in the aforementioned industries. Specifically, rather than rolling on wheels across a working surface, track-type machines utilize one or more track assemblies comprising an endless loop of coupled track links that define an outer surface and an inner surface, the The outer surface supports the ground engaging track shoes, and the inner surface trave...

Claims

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Application Information

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IPC IPC(8): B23K26/342B23K9/04B23K9/16B23K9/18B23K10/02B62D55/21C23C8/22
CPCB23K26/342B23K10/027B23K9/042B23K9/16B23K9/18C23C8/22B62D55/211B62D55/21B23K9/04F16C33/14B60Y2200/25B60Y2410/124
Inventor C·R·拉霍德R·L·雷克R·J·皮克里尔S·E·基尔D·T·韦弗D·J·索尔德艾利特
Owner CATERPILLAR INC
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