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Cutting device and its support

A technology of cutting device and cutting disc, which is used in slitting machinery, cutting machinery, mining equipment, etc., can solve the problems of weakening and time-consuming of surrounding rock structures.

Active Publication Date: 2021-07-16
JOY GLOBAL UNDERGROUND MINING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technique is time consuming and exposes the operator to significant safety risks due to the use of explosives and the weakening of the surrounding rock structure

Method used

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  • Cutting device and its support
  • Cutting device and its support
  • Cutting device and its support

Examples

Experimental program
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Embodiment Construction

[0029] Before the embodiments are described in detail, it is to be understood that the invention is not limited in application to the details of construction and the arrangement of parts set forth in the following description or shown in the following drawings. The invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of "including," "comprising" or "having" and variations thereof herein is intended to cover the items listed thereafter and their equivalents as well as additional items. The terms "mounted", "connected" and "coupled" are used broadly and include both direct and indirect mountings, connections and couplings. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, they may include electrical or hydraulic connecti...

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Abstract

A cutting assembly for a rock excavator including a frame, the cutting assembly includes a boom and a cutting device supported on the boom. The cantilever includes a first portion supported to pivot relative to the frame and a second portion. In some embodiments, the first portion includes a first structure extending along the longitudinal base axis and a second structure movable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion such that Move relative to the first part. In some embodiments, the second portion is pivotally connected to the first portion by a universal joint, and a suspension system including a plurality of biasing members is connectable between the first portion and the second portion.

Description

[0001] Cross References to Related Applications [0002] This application claims previously filed co-pending U.S. Provisional Patent Application 62 / 377,150 (filed August 19, 2016), U.S. Provisional Patent Application 62 / 398,834 (filed September 23, 2016), and U.S. Provisional Patent Application Priority of 62 / 398,717 (filing date September 23, 2016). The entire contents of which are incorporated into this application by reference. technical field [0003] The present invention relates to mining machines and excavators, and in particular to cutting devices for mining machines or excavators. Background technique [0004] Hard rock mining and excavation often requires the exertion of enormous energy on a portion of a rock face to fracture the rock. One conventional technique involves operating a cutting head with multiple mining picks. Due to the hardness of the rock, the picks need to be changed frequently, which leads to excessive machine downtime and mining operations. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C25/16E21C25/18E21C27/12E21C27/22
CPCE21D9/102E21D9/1093E21D9/1046E21C25/16E21C27/02E21C27/12E21C25/18E21C35/20E21C27/22E21D9/1006
Inventor N·达赫尔R·博伊德J·A·S·德索萨
Owner JOY GLOBAL UNDERGROUND MINING LLC