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Retention system with double-ended expandable pins

A technology for tools and fasteners, applied in the field of tool retention systems, which can solve problems such as expensive, increased component costs, and lack of durability

Active Publication Date: 2020-03-20
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] While acceptable for some applications, the retention pin assembly of the '595 publication is not optimal
In particular, components can be complex, expensive, and lack the durability required under certain conditions
Additionally, the asymmetric nature of the retaining pin assembly may require wear parts and corresponding asymmetric openings in the mounting nose
These openings are difficult to manufacture, require precise alignment during assembly, and add to the cost of the part

Method used

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  • Retention system with double-ended expandable pins
  • Retention system with double-ended expandable pins
  • Retention system with double-ended expandable pins

Examples

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Embodiment Construction

[0012] figure 1 Machine 10 is shown having a job implement 12 operably connected at a front end. In the disclosed embodiment, machine 10 is a cable shovel. It is contemplated, however, that machine 10 may embody any other type of moving or stationary machine known in the art, such as a wheel loader, excavator, motor grader, dredge, or other similar machines. Machine 10 may be configured to move material, such as land cover and ore, using work implement 12 in completing assigned tasks. While shown positioned at the front of machine 10 , it is contemplated that work implement 12 may alternatively or additionally be located at the middle or rear of machine 10 if desired.

[0013] Job executor 12 may embody any device for performing a specific task. For example, work implement 12 may be a bucket (in figure 1 shown in ), blade, shovel, crusher, grapple, ripper, or any other material moving device known in the art. Although in figure 1 The embodiments of the present invention ...

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PUM

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Abstract

A retention system is provided for use in connecting a replaceable tool to a work implement. The retention system may have a generally cylindrical pin with a first hollow end, and a second hollow end located opposite the first hollow end. The retention system may also have a first fastener configured to engage the first hollow end and cause the first hollow end to flare radially outward. The retention system may further have a second fastener configured to engage the second hollow end and cause the second hollow end to flare radially outward.

Description

technical field [0001] The present invention relates generally to a retention system and, more particularly, to a tool retention system with double-ended expandable pins. Background technique [0002] Earth-moving machines, such as cable shovels, excavators, wheel loaders, and front shovels, include actuators that are commonly used to dig, turn, or otherwise move earth material. These actuators are subject to extreme wear and shocks which cause them to wear out. To extend the life of the actuator, a variety of ground engaging tools can be attached to the areas of the earthmoving actuator that experience the most wear. These ground engaging tools are replaceably connected to the aforementioned actuators using a retention system. [0003] An exemplary system for retaining a ground engaging tool connected to an actuator is disclosed in U.S. Patent Publication No. 2010 / 0162595 to Leslie et al., published July 1, 2010 (the '595 publication). Specifically, the '595 publication ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B13/06F16B19/02E02F9/28
CPCE02F9/2833E02F9/2891
Inventor S·M·格雷厄姆S·J·皮尔兹R·M·吉恩
Owner CATERPILLAR INC