A shield machine inner and outer double-layer main drive system

A technology of inner and outer double-layer shield machines, which is applied in mining equipment, tunnels, earthwork drilling and mining, etc., and can solve the problem that the main drive system cannot fully adapt to the parameter requirements.

Active Publication Date: 2020-11-27
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a double-layer main drive system inside and outside the shield machine, which solves the technical problem that the main drive system of the existing dual-mode shield machine cannot fully adapt to the parameter requirements after mode switching

Method used

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  • A shield machine inner and outer double-layer main drive system
  • A shield machine inner and outer double-layer main drive system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a double-layer main drive system inside and outside a shield machine, such as figure 1 As shown, it includes a drive box 1 connected to the shield body 19 through a first fastener 3 , a drive mechanism is arranged inside the drive box 1 , and a drive disc 14 is provided at the end of the drive box 1 in transmission connection with the drive mechanism. Described driving mechanism comprises inner layer driving mechanism and outer layer driving mechanism, and inner layer driving mechanism and outer layer driving mechanism work independently, and both can drive drive disc 14 to rotate, and inner layer driving mechanism and outer layer driving mechanism can also work jointly.

[0026] The drive end of the inner layer drive mechanism is connected with the internal drive transmission shaft 10, the drive end of the outer layer drive mechanism is connected with the external drive transmission shaft 2, the two ends of the internal drive transmission shaft 10 and the ...

Embodiment 2

[0031] Embodiment 2, an inner and outer double-layer main drive system of a shield machine, the inner layer driving mechanism and the outer layer driving mechanism both include a hydraulic motor and a hydraulic drive reducer, and the hydraulic motor of the inner layer drive mechanism is driven by a hydraulic drive reducer The internal drive transmission shaft 10, the hydraulic motor of the outer drive mechanism drives the external drive transmission shaft 2 through the hydraulic drive reducer.

[0032]Both the inner drive mechanism and the outer drive mechanism are driven by variable frequency motors, which is not only convenient for manufacturing and installation, but also convenient for unified control. When the inner drive mechanism and the outer drive mechanism need to work together, it is only necessary to control the hydraulic reducer to output the same torque to drive the drive disc 14 to rotate synchronously; when the inner drive mechanism or the outer drive mechanism n...

Embodiment 3

[0034] Embodiment 3, an inner and outer double-layer main drive system of a shield machine, the inner drive mechanism includes a frequency conversion motor 9 and an electric drive reducer 8, and the frequency conversion motor 9 of the inner drive mechanism drives the internal drive through the electric drive reducer 8 Transmission shaft 10; the outer drive mechanism includes a hydraulic motor 5 and a hydraulic drive reducer 4, and the hydraulic motor 5 of the outer drive mechanism drives the external drive drive shaft 2 through the hydraulic drive reducer 4.

[0035] Other structures of this embodiment are the same as those of Embodiment 1.

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Abstract

The invention discloses an internal and external double-layer main drive system for a shield tunneling machine. The system comprises a driving box, wherein an inner-layer driving mechanism and an outer-layer driving mechanism are arranged on the back of the driving box, the inner-layer driving mechanism is connected with an internal driving transmission shaft, the outer-layer driving mechanism isconnected with an external driving transmission shaft, an internal transmission gear is arranged on the revolution surface of the internal driving transmission shaft, an external transmission gear isarranged on the revolution surface of the external driving transmission shaft, a main bearing fixed between a driving disc and the driving box is arranged between the internal driving transmission shaft and the external driving transmission shaft and comprises a stator fixedly connected with the driving box, a bearing inner ring and a bearing outer ring are in running fit with the stator, an internal driving gear meshed with the internal transmission gear is arranged on the outer wall of the bearing inner ring, an external driving gear meshed with the external transmission gear is arranged onthe inner wall of the bearing outer ring, and the bearing inner ring and the bearing outer ring are both fixedly connected with the driving disc. The inner-layer driving mechanism and the outer-layerdriving mechanism can drive the driving disc to rotate, and each driving mechanism can work independently and can work in a combined manner.

Description

technical field [0001] The invention relates to the technical field of the main drive of a shield machine, in particular to an inner and outer double-layer main drive system of a shield machine. Background technique [0002] With the continuous advancement of my country's urbanization process, the scale of urban population continues to expand, and the load of ground transportation facilities is gradually increasing. The construction of urban rail transit urgently needs to be expanded. Among them, the shield construction method is more and more widely used in the development of underground space. [0003] Shield tunneling will encounter a variety of strata, and different strata use different excavation modes to have different excavation efficiencies. Therefore, dual-mode shields suitable for various strata, such as earth pressure-TBM dual-mode, earth pressure — Muddy water dual-mode, muddy water-TBM dual-mode or even multi-mode shields came into being. However, when designin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06
CPCE21D9/06E21D9/0635
Inventor 李坤杰程永龙何聪赵茜卓庆敏周罘鑫
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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