A Main Drive Structure Applied to Super Large Diameter Shaft Tunneling Machine

Abstract

The invention discloses a main drive structure applied to a super-large-diameter shaft boring machine, which includes: a motion device for driving the cutter head to move, a first drive device for transmitting torque to the motion device, and a first drive device for applying an edge to the motion device. The second driving device of the vertical direction driving force, the moving device is embedded in the shield body and the cutter head, the first driving device and the second driving device are connected with the moving device, so that the moving device drives the cutter head to rotate and push out, There is a flexible connection between the movement device and the shield body. The main drive structure applied to the ultra-large-diameter shaft boring machine provided by the present invention is simple, suitable for the ultra-large-diameter shaft boring machine, and can effectively reduce the risk of excavation and withstand relatively large 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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