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Lubricated cartridge for hydraulic mining shovel track

A core tube and track pin technology, applied in the field of track chains, can solve problems such as enlargement

Active Publication Date: 2018-04-17
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The force required to remove the core is also increased by possible erosion and fretting around and within the track joint

Method used

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  • Lubricated cartridge for hydraulic mining shovel track
  • Lubricated cartridge for hydraulic mining shovel track
  • Lubricated cartridge for hydraulic mining shovel track

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] figure 1 An embodiment of a machine 100 with a track-type undercarriage 102 is shown. As shown, machine 100 is a hydraulic mining shovel, although other machine types may be used. Machine 100 includes a frame 104 disposed above an underframe 102 . Underframe 102 includes a first side 110 on which first track chain assembly 106 is disposed and a second side 112 on which second track chain assembly (not shown) is disposed. . The first side 110 is in an opposing relationship to the second side 112 . Together, the track chain assemblies are configured to engage the ground or other surface to propel machine 100 . It should be appreciated that the track assemblies of machine 100 may be similar, and further may represent mirror images of each other. Accordingly, only first track chain assembly 106 will be described herein. It should be understood that the description of the first track chain assembly 106 is equally applicable to the second track chain assembly.

[0013]...

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PUM

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Abstract

A cartridge assembly for a track chain includes a bushing and a track pin. The bushing has an outer surface and an inner surface, the inner surface defining a passage in the form of a cylindrical bore. The bushing forms a lubrication reservoir adjacent the inner surface and extending towards the outer surface of the bushing. The track pin is disposed within the cylindrical bore, and the bushing isrotatable with respect to the track pin. An outer surface of the track pin is in fluid communication with the lubrication reservoir. The outer surface of the bushing corresponds with an outer diameter of the cartridge assembly. The outer diameter of the cartridge assembly is less than a diameter of supporting bores such that the cartridge assembly is rotatable with respect to inside surfaces of the supporting bores.

Description

technical field [0001] The present invention relates generally to a track chain for a mining machine, and more particularly to a core barrel assembly for a track chain of a mining machine. Background technique [0002] Track-type vehicles such as crawlers and excavators use track assemblies to provide ground engaging propulsion. Tracked vehicles typically have an undercarriage with at least one track on each side of the vehicle. Each track typically includes endless track chains that engage the ground and propel the vehicle. Each endless track chain is made up of a plurality of interconnected track links. Adjacent track links in the chain are connected at corresponding track joints. In one exemplary application, a track joint for a mining vehicle includes an unlubricated pin that resides directly in the track joint or within a bushing to provide a pivotal connection between adjacent track links . Known track links are prone to wear due to the weight of the machine actin...

Claims

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Application Information

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IPC IPC(8): B62D55/21
CPCB62D55/21B62D55/088B62D55/092B62D55/32
Inventor T·E·奥尔特莱T·J·科瓦尔斯基
Owner CATERPILLAR INC
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