A toothed chain drive shearer rocker arm device

Abstract

The invention discloses a tooth-shaped chain transmission coal mining machine rocker device. The device comprises a rocker shell, a permanent magnet motor, a planet gear speed reducer and a tooth-shaped chain transmission system, the permanent magnet motor and the planet gear speed reducer form an integrated motor speed reducer, the integrated motor speed reducer and the tooth-shaped chain transmission system are located in the rocker shell, and torque generated by the permanent magnet motor is output through the tooth-shaped chain transmission system. According to the coal mining machine rocker tooth-shaped chain transmission system scheme, a pair of a driving chain wheel and a driven chain wheel and a tooth-shaped chain are adopted, flexible transmission of a coal mining machine rocker is achieved, and the problems that for an existing coal mining machine rocker, due to rocker shell deformation, the transmission gear system is high in failure rate, low in reliability, high in noise energy consumption and the like can be solved.

Description

technical field [0001] The invention relates to a rocker arm device of a coal mining machine, in particular to a toothed chain drive rocker arm device of a coal mining machine suitable for coal mining mechanical equipment. Background technique [0002] The rocker arm is an important and complex part of the coal shearer, and it is also a part with a high failure rate. Due to the harsh working conditions of coal mining, when the rocker drum cuts coal, the rocker shell is deformed, which often leads to failure of the gear transmission system, which is one of the common faults of the rocker arm. The transmission scheme adopted by the rocker drum of the existing shearer is: high-speed small torque asynchronous motor + spur gear reducer + rocker idler + planetary gear reducer + cutting drum. Long gear chain transmission often causes rocker arm gear transmission failure when the rocker arm shell is deformed, so the number of rocker arm transmission components is reduced and the tr...

AI Technical Summary

Problems solved by technology

The announcement number is: CN 205330665 U discloses "coal shearer rocker arm", the announcement number is: CN203796261 U discloses "a kind of coal shearer rocker arm", the application number is: 201510090450.9 discloses "rocker arm structure and shearer " and the application number is: 201110289171.7 disclosed "a coal shearer and its rocker arm transmission system" adopts the transmission mode all exists: when the rocker arm shell is deformed, because it is multi-gear long transmission chain transmission, resulting in Increased failure rate and reduced reliability of the entire rocker gear transmission system

[0005] The application number is: 201310238493.8 disclosed "a rocker arm device for a roller shearer", the application number is: 201010616808.4 disclosed "a rocker drum transmission structure for a roller shearer", the application number is: 201310250819.9 disclosed "a A new type of shearer rocker arm" and the announcement number are: CN 102877841 B The structural arrangement adopted by the "drum shearer rocker arm" is to place the motor at the end of the rocker arm, which is closely connected to the planetary gear for deceleration. As a result, its structure lengthens the longitudinal length of the rocker arm, which affects the spatial arrangement of the entire shearer, scraper conveyor, and hydraulic support, and the center of gravity of the rocker arm is close to the end of the rocker arm drum, and the stability of the whole machine is low.

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