Main drive structure applied to super-large-diameter vertical shaft heading machine

Abstract

The invention discloses a main drive structure applied to a super-large-diameter vertical shaft heading machine. The structure comprises a moving device used for driving a cutterhead to move, a firstdrive device used for transmitting torque to the moving device, and a second drive device used for applying pushing force to the moving device in the vertical direction. The moving device is embeddedin a shield and the cutterhead. Both the first drive device and the second drive device are connected with the moving device, so that the moving device drives the cutterhead to push out while rotating, and the moving device is flexibly connected with the shield. The main drive structure applied to the super-large-diameter vertical shaft heading machine is simple in structure, applicable to the super-large-diameter vertical shaft heading machine and capable of effectively reducing the heading risk and withstanding high torque.

Description

technical field [0001] The invention relates to the technical field of roadheading machines, and more specifically, relates to a main drive structure applied to a super large-diameter shaft roadheading machine. Background technique [0002] In the prior art, complex stratum structures and harsh environments are often encountered during shaft construction. The formations encountered in shaft operations generally include rock formations and soil layers with different water contents and soft and hard textures, and often encounter phenomena such as water gushing, sand gushing, and landslides. [0003] For the main drive system of ultra-large-diameter roadheaders, if the traditional design mode is adopted, a large number of drive motors are required, and huge drive power is required. General power conditions are difficult to meet this requirement. Moreover, the device layout space is also insufficient, and the cost is greatly increased. At the same time, the diameter of the supp...

AI Technical Summary

Problems solved by technology

[0003] For the main drive system of ultra-large-diameter roadheaders, if the traditional design mode is used, a large number of drive motors are required, and huge drive power is required. General power conditions are difficult to meet this requirement. Moreover, the device layout space is also insufficient, and the cost increases significantly.

At the same time, the diameter of the supporting main bearing needs to be greater than 10 meters, and the bearing diameter is generally less than 10 meters under the current manufacturing capacity of the main bearing of the roadheader, that is, the manufacturing conditions of the existing technology are insufficient, and the manufacturing of the main bearing is very difficult

In addition, the size of the main bearing is too large, which requires very high assembly conditions on site

[0004] Moreover, the traditional main drive structure is not only facing difficult problems in design and manufacture, but also because the diameter of the excavation end face is too large, it is easy to make the shield body bear a large torque during the construction process. Under such circumstances, the instantaneous huge torque will cause great damage to the overall roadheader, making the overall safety of the roadheader face great challenges

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