Longwall shearer or other machine with a gear case for transmitting rotational power

A technology for coal shearers and gearboxes, applied in gear lubrication/cooling, slitting machinery, earthwork drilling and mining, etc. It can solve the problems of internal lubricating oil water pollution, water and dust ingress pollution, etc., and achieve the effect of low cost

Active Publication Date: 2012-09-05
JOY GLOBAL UNDERGROUND MINING LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In both cases, there is a risk of the internal lubricating oil being contaminated by water leaking from the heat exchanger or by water from the

Method used

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  • Longwall shearer or other machine with a gear case for transmitting rotational power
  • Longwall shearer or other machine with a gear case for transmitting rotational power
  • Longwall shearer or other machine with a gear case for transmitting rotational power

Examples

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Example Embodiment

[0032] The preferred embodiment involves figure 1 Modification of rocker arm 16 shown. More specifically, the improved rocker arm 30 such as Figures 2 to 4 shown.

[0033] like Figure 4 As shown, the disclosed longwall shearer rocker arm 30 includes a gearbox 34 for transmitting rotational power from a driver 38 to a rotating driven toothed drum 18 . The gearbox 34 includes an elongated housing 42 and a plurality of single gears 46 mounted in a row within the elongated housing 42 . One gear at one end of the row is drivingly connected to the driver 38 and the other gear at the other end of the row is drivingly connected to the driven member, which is the drum 18 . The mount for each single gear is in the form of a longitudinal gear shaft 50 having a mounting axis extending longitudinally along the gear shaft 50 and a lubricating oil 54 surrounding the single gear 46 and contained in the housing 42 Inside.

[0034] The present invention proposes a new cooling system for...

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PUM

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Abstract

A longwall shearer or other machine with a gear case for transmitting rotational power from a drive to a driven member. The gear case comprises a drive, a driven member, at least one axle including at least one aperture formed therein to circulate cooling fluid through the axle, and a gear mounted to rotate on the axle and positioned to transmit power from the drive to the driven member. 50- 58 S iliIVIE66

Description

[0001] related application [0002] This application is a continuation-in-part of earlier co-pending US Patent Application Serial No. 12 / 475,456, filed May 29, 2009. technical field [0003] The present invention relates to a machine comprising a compact, high power density gearbox for transmitting rotational power from a driver to a driven component, and, more particularly, to such a gearbox including an improved cooling system . Background technique [0004] A variety of different devices exist for mining coal and other materials from underground formations. One type of equipment widely used in underground mining operations includes continuous mining machines, which are employed where it is desired to mine an overhang or longwall of a formation. The longwall can extend a distance of 300-1200 feet depending on the formation of the earth. In this type of mining, standard practice is to mine parallel roadways to the formation to be mined and to connect these roadways with ...

Claims

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Application Information

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IPC IPC(8): F16H57/04E21C35/00
CPCE21C27/02E21C31/02
Inventor 爱德华·F·尼德赖特肖恩·W·富兰克林菲利普·R·斯特赖敦罗伯特·P·阿伦
Owner JOY GLOBAL UNDERGROUND MINING LLC
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