Main drive speed reducer of high-speed shield tunneling machine

Abstract

The invention provides a high-speed shield tunneling machine main drive speed reducer which comprises a shell and a speed reduction gear transmission device arranged in the shell, a labyrinth type cooling device arranged in the shell is arranged at the input end of the speed reduction gear transmission device, and a spiral cooling unit arranged in the shell is arranged in the middle of the speed reduction gear transmission device. One end of the spline housing is in key connection with the input end of the reduction gear transmission device, the other end of the spline housing is connected with the motor, and a parking braking system is sleeved outside one end of the spline housing far away from the reduction gear transmission device. By adopting the structure that the two water-cooling devices are connected in series, the problem that the oil temperature is too high during continuous high-speed operation can be effectively solved. And a parking braking system is arranged, the opening and closing state of the brake can be monitored, the brake can be manually shielded, and the safety of the shield tunneling machine during shutdown maintenance is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of a shield machine reducer, in particular to a high-speed shield machine main drive reducer. Background technique [0002] The shield machine is a special mechanical equipment used for tunnel shield construction, and is widely used in subway, railway, highway, municipal, hydropower and other tunnel projects. The shield machine is equipped with a variety of reducers for driving the cutter head, assembling segments, and conveying waste residues. Among them, the main drive reducer in the main drive system is used in the most severe conditions. During the use of the equipment, it is affected by geological conditions. The main drive reducer needs to withstand irregular loads and shocks. During the construction process, when faced with soft rock formations, the speed of the shield machine is fast, and the reducer has to bear a large torque, but the output speed is relatively low, and the single operation time is...

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Problems solved by technology

[0003] As one of the core components of the shield machine, the main drive reducer has been dependent on imports for a long time, which has a great impact on the overall cost, production cycle and timeliness of after-sales service of the shield machine equipment; Some main drive reducers have the problems of poor reliability, large dimensions, unable to withstand high speed, no cooling device or cooling device but overtemperature shutdown under high-speed conditions

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