Coal mining machine and traction part thereof

A technology of the traction unit and shearer, applied in the direction of earthwork drilling, slitting machinery, propulsion, etc., can solve the problems of many fault points, complex assembly, and affecting the life of gear bearings, etc., to reduce costs and fault points, and improve reliability performance, reduce the effect of transmission parts

Inactive Publication Date: 2014-07-16
SANY HEAVY EQUIP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In this solution, the required reduction transmission chain (spur gear transmission system 02 and two-stage planetary reduction device 03) is relatively long, and there are many gears, bearings, and seals, and the assembly is complicated duri

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  • Coal mining machine and traction part thereof
  • Coal mining machine and traction part thereof

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] Due to the design process of the traction part of the existing coal mining machine, a two-stage planetary reduction device, a spur gear transmission system and an AC frequency conversion motor are usually arranged in the traction part housing. The planetary reduction gear is used as a transmission part. There are many transmission parts in the entire traction part, the transmission is relatively large, and failures are prone to occur during the transmiss...

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Abstract

The invention provides a coal mining machine and a traction part thereof. The traction part of the coal mining machine comprises a traction part shell and a two-stage planetary speed reduction device arranged in the traction part shell, wherein a driving motor with a rotating speed lower than a preset rotating speed is arranged in the traction part shell; the driving motor is axially arranged at the input end of the two-stage planetary speed reduction device; an output shaft of the driving motor is connected with the two-stage planetary speed reduction device in a driving manner. The driving motor is configured to be a preset high-torque and low-rotating-speed motor, so that traction force can be directly output to a traveling part of the coal mining machine after the rotating speed output by the driving motor passes through the two-stage planetary speed reduction device; the number of transmission components is reduced, the cost is lowered, and fault points are reduced; the reliability is improved.

Description

technical field [0001] The invention relates to a coal mining machine, in particular to a coal shearer and its traction part. Background technique [0002] Currently, if figure 1 As shown, in the design process of the traction part of the traditional coal mining machine, an AC variable frequency motor 01 is set in the traction part housing 04 as the power source. The planetary reduction device 03 constitutes the reducer of the traction part to reduce the high speed of the AC variable frequency motor 01 from about 1470r / min to about 10r / min. [0003] In this solution, the required reduction transmission chain (spur gear transmission system 02 and two-stage planetary reduction device 03) is relatively long, and there are many gears, bearings, and seals, and the assembly is complicated during installation. There are many, and when coal is cut on a working face with a large inclination angle, because the transmission chain is relatively long, it is easy to cause poor transmiss...

Claims

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Application Information

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IPC IPC(8): E21C31/00E21C29/00
Inventor 周海峰苏健尹力
Owner SANY HEAVY EQUIP
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