Deviation-adjustable transmission system for working arm of heading machine

Abstract

The invention discloses a deviation-adjustable transmission system for a working arm of a heading machine, and belongs to the technical field of transmission. The deviation-adjustable transmission system comprises a cutting driving motor and a cutting gear motor, wherein the output end of the cutting driving motor is connected with the input end of the cutting gear motor; the output end of the cutting gear motor is provided with a connecting shaft; a connecting device is arranged on the connecting shaft; the other end of the connecting device is connected with a main shaft; and one end, close to the connecting shaft, of the cutting gear motor is connected with an arm body through a flange. A traditional spline sleeve is replaced by the connecting device of a special structure; a first coupler and a second coupler only need to be fixedly connected with the connecting shaft of the cutting gear motor and the main shaft through a first baffle and the second baffle respectively in the installation process, and then a gear sleeve is installed; the use requirements of small space, large torque and blind installation are met; good axial, radial and angular deviation compensation capacity is realized; and the problems that an existing transmission system structure is difficult to assemble, abnormal in sound, serious in heating and the like are well solved.

Description

technical field [0001] The invention belongs to the technical field of transmission, and in particular relates to an adjustable deflection transmission system for a working arm of a coal mine roadheader. Background technique [0002] The cantilever roadheader is commonly used in coal mines. The cutting part is the most important and most direct working part of the equipment. The cutting part transmission system is the core of the part. The system has a large torque and is completely enclosed in the arm body. Inside. Due to the influence of high torque, special working conditions and the limitation of arm body space, the transmission system of the cutting part usually directly uses rigid spline sleeves to connect the input and output ends of the torque, that is, the existing transmission system consists of cutting Composed of motor, cutting reducer, spline sleeve and main shaft. The two ends of the spline sleeve are respectively connected to the output shaft and the main sh...

AI Technical Summary

Problems solved by technology

[0003] Since the specifications of the splines at both ends of the above-mentioned spline sleeve are generally different, it is difficult to ensure the coaxiality of the splines at both ends during processing, especially when the size difference between the splines at both ends is not large. Sometimes the two ends are not concentric, which leads to problems such as failure to assemble or over-tight assembly, which leads to serious heating.

Moreover, the span of the transmission system is relatively large, and the processing and assembly accuracy of other parts will also affect the assembly of the spline sleeve, and the above-mentioned transmission system not only has the problem of difficult assembly, but also is more prone to abnormal noise, Severe heating or even damage, etc., the reliability and service life of the transmission system directly affect the normal use of the cutting part

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