Coal cutter rocker arm cooler and method

Abstract

The invention discloses a coal cutter rocker arm cooler and a method. The cooler comprises a first cooler and a second cooler, wherein the first cooler and the second cooler are detachably mounted ina rocker arm of a coal cutter. The first cooler comprises a first support frame, a first cooling pipe and a fixed support. The first support frame comprises a first flange cover plate, a first circular cover plate, a first connecting rod and a first tip part which is arranged on the first circular cover plate. The second cooler comprises a second support frame and a second cooling pipe. The methodcomprises the following steps of 1, mounting the first cooler in the rocker arm of the coal cutter; 2, mounting the second cooler in the rocker arm of the coal cutter; and 3, cooling the rocker arm of the coal cutter. The coal cutter rocker arm cooler is reasonable in design and low in cost. Because an idler wheel and a bearing are arranged in an idler gear transmission system of the rocker arm of the coal cutter, disassembly and assembly are convenient, maintenance is easy, a large amount of maintenance time is saved, the labor intensity of workers is relieved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of rocker arm cooling of a coal shearer, and in particular relates to a rocker arm cooler of a coal shearer and a method thereof. Background technique [0002] With the continuous increase of the cutting power of the shearer, the calorific value of the mechanical transmission system of the rocker arm of the shearer is also increasing. The low cooling efficiency will easily cause the temperature to be too high, which will lead to the failure of the idler transmission system in the rocker arm of the shearer. As a result, safety hazards such as idler damage to the rocker arm and bearing lockup occur. [0003] At present, there are mainly two ways of cooling the rocker arms of most shearers: (1) Cooling by opening water channels in the rocker shell. This structure has poor cooling effect and affects the strength of the shell. It is suitable for high-power rocker arms. Poor sex. (2) The cooling water pipe is we...

AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of the cutting power of the shearer, the calorific value of the mechanical transmission system of the rocker arm of the shearer is also increasing. The low cooling efficiency will easily cause the temperature to be too high, which will lead to the failure of the idler transmission system in the rocker arm of the shearer. Cause safety hazards such as idler damage to the rocker arm, bearing lockup, etc.

[0003] At present, there are mainly two ways of cooling the rocker arms of most shearers: (1) Cooling by opening water channels in the rocker shell. This structure has poor cooling effect and affects the strength of the shell. It is suitable for high-power rocker arms. poor sex

(2) The cooling water pipe is welded inside the rocker shell for cooling. This structure has poor reliability and is difficult to replace.

Once these two structures are blocked or leaked, production must be stopped to replace the rocker arm, which causes great economic losses to the coal mine; in addition, the maintenance of the existing rocker arm cooling device consumes a lot of manpower, material and financial resources and wastes a lot of time, which brings inconvenience to the coal mine. necessary economic loss

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