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Loader Lift Arm Assemblies for Power Machines

A technology for lifting arms and power machines, applied in the field of power machines, which can solve the problems of less complex design and adverse effects on the visibility of power machine operators

Active Publication Date: 2022-05-17
斗山山猫北美公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It was a challenge to design a lift arm structure that was not too complex but sufficient to withstand high load stresses
In addition, many lift arm structural designs have a detrimental effect on the power machine operator's visibility

Method used

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  • Loader Lift Arm Assemblies for Power Machines
  • Loader Lift Arm Assemblies for Power Machines
  • Loader Lift Arm Assemblies for Power Machines

Examples

Experimental program
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Embodiment Construction

[0026] This discussion uses illustrative embodiments to reveal various concepts. However, these concepts are not limited in their application to the details of construction and arrangement of components in the illustrative embodiments, and can be practiced or performed in various other ways. The terminology herein is used for descriptive purposes and should not be viewed as limiting. The words "comprising", "comprising" and "having" and variations thereof as used herein are meant to include the items listed thereafter, their equivalents as well as additional items.

[0027] The disclosed embodiments include a power machine, a lift arm structure, an implement bracket, a driven link structure, and a driving link structure that increase manufacturability, reduce component failures, and improve the design of the power machine. In some exemplary embodiments, the lift arm structure includes a cast lower lift arm portion. The cast lower lift arm portion is pivotally bonded directly...

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PUM

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Abstract

Disclosed embodiments include associated structures of power machines (eg, 100; 200; 300) and lift arms (eg, 230; 330), implement brackets (eg, 272; 372), driven links, and driving links that Improve manufacturability, reduce component failures and improve power machine design and function. In some embodiments, the lift arm structure includes a cast lower lift arm portion. The cast lower lift arm portion includes a contoured upper end (eg, 405) that fits over the contoured lower end (eg, 410) of the upper lift arm portion (eg, 333) to control stress points and reduce stress on welded portions. The driven link structure may include a driven link configured to be located at least partially outside the lift arm structure to improve rear visibility. The active linkage structure may be configured to laterally overlap the innermost surface (eg, 680) on the lift cylinder (eg, 338), but configured such that when the lift arm is raised, the lateral overlap moves to the innermost surface of the lift cylinder on the surface.

Description

technical field [0001] The present disclosure relates to power machines. More particularly, the present disclosure relates to lift arms and related structures for moving or handling material with implements mounted on the lift arm structures. Background technique [0002] For purposes of this disclosure, a power machine includes any type of machine that generates power for the performance of a specific task or tasks. One type of powered machine is a work vehicle. A work vehicle, such as a loader, is typically a self-propelled vehicle having a work implement, such as a lift arm, that is maneuverable to perform a work function (although some work vehicles may have other work implements). Work vehicles include, for example, loaders, excavators, utility vehicles, tractors, and trenchers. [0003] A power machine generally includes a frame, at least one working element, and a power source capable of powering the working element to perform a work task. One type of powered mach...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/627A01B1/00E02F3/34E02F3/38B22D25/00A01B63/24
CPCE02F3/38E02F3/43E02F3/422E02F9/006E02F9/2037A01B63/24B22D25/00B22D25/02E02F3/627E02F3/3414E02F3/3686E02F3/382A01B1/00
Inventor 布兰登·席韦尔
Owner 斗山山猫北美公司
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