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Main bearing disassembling method and main bearing maintenance method of main drive of shield machine

A main drive and shield machine technology, applied in the direction of hand-held tools, manufacturing tools, etc., can solve the problem of difficult disassembly and maintenance of the main bearing, and achieve the effect of improving work efficiency, improving work efficiency, and avoiding the increase in use costs.

Active Publication Date: 2019-09-17
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a method for dismantling the main bearing of the main drive of the shield machine and a maintenance method for the main bearing, so as to solve the technical problem in the prior art that the main bearing of the main drive of the shield machine is difficult to disassemble and maintain

Method used

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  • Main bearing disassembling method and main bearing maintenance method of main drive of shield machine
  • Main bearing disassembling method and main bearing maintenance method of main drive of shield machine
  • Main bearing disassembling method and main bearing maintenance method of main drive of shield machine

Examples

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Effect test

Embodiment 1

[0051] A dismantling method of the main bearing of the main drive of the shield machine, please refer to Figure 2 to Figure 8 .

[0052] like figure 2 and image 3 As shown, the main drive of the shield machine disassembled in the embodiment of the present invention includes a main drive box 21, and a main bearing 22 and a sealing slip ring 23 are installed in the front part of the main drive box 21. The gap between the sealing slip ring 23 and the main drive box 21 There are four large lip seals 241 and five small lip seals 242 between them. The front side of the main drive box 21 is equipped with a cutter head drive flange 25 and a lip seal pressure ring. The lip seal pressure ring includes a large lip seal. Sealing pressure ring 261 and small lip-shaped sealing pressure ring 262 .

[0053] The large lip seal pressure ring 261 is used to compress the large lip seal 241 to prevent the large lip seal 241 from breaking away from the gap between the seal slip ring 23 and th...

Embodiment 2

[0067] A maintenance method for the main bearing of a shield machine, please refer to Figure 9 .

[0068] like Figure 9 As shown, the main bearing repaired by the shield machine main bearing maintenance method in the embodiment of the present invention includes an outer ring and an inner ring. The left end cover 223 and the right end cover 224 are connected by bolts screwed into the bolt holes 62, an outer lip seal ring 225 is provided between the spacer ring 222 and the left end cover 223, and an inner lip seal ring 225 is provided between the ring gear 221 and the right end cover 224. The lip seal ring 226 is provided with a main thrust roller 227, a reverse thrust roller 228 and a radial thrust roller 229 between the outer ring and the inner ring.

[0069] The ring gear 221 of the main bearing is driven to rotate by the reducer, so that the outer ring of the main bearing rotates relative to the inner ring. Therefore, the contact surface between the outer lip seal ring 2...

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Abstract

The invention discloses a main bearing disassembling method and a main bearing maintenance method of a main drive of a shield machine. The main bearing disassembling method for the main drive of the shield machine is characterized in that the front side of the main drive of the shield machine is downwards transported to a supporting platform, parts at the forefront end of the main drive of the shield machine are dismounted, then the rest part of the main driving part of the shield machine is transported away from the supporting platform, the disassembled parts are left on the previous supporting platform, the main drive of the shield machine is continuously adjusted to different supporting platforms, and the difficulty caused by large volume weight of parts driven by the shield machine is effectively overcome. According to the main bearing maintenance method of the shield machine, a main bearing of the shield machine is maintained, the working efficiency of the main bearing is improved, grooves needing to be repaired on the slideway surface and the raceway surface are subjected to surfacing, grinding and electroplating treatment, and the smoothness and wear resistance of the trimmed slideway surface and the raceway surface can be ensured.

Description

technical field [0001] The invention relates to the technical field of shield machine maintenance, in particular to a method for dismantling a main bearing of a main drive of a shield machine and a method for maintaining the main bearing. Background technique [0002] The main drive is the core drive part of the shield machine, which plays the role of power conversion and output during the construction of the shield tunneling method. In the actual use of the main drive, the early prevention and routine maintenance of the main drive failure directly affect the working conditions of the shield machine, which can prevent the shield machine from malfunctioning in subsequent projects, resulting in inability to continue tunneling or low tunneling efficiency. [0003] As the part of the main drive that transmits power, the main bearing plays an important role. If the main bearing wears out, it will reduce the power transmission efficiency of the shield machine and affect the tunnel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/00B23P6/00
CPCB23P6/00B25B27/00
Inventor 洪开荣张彦伟任国宏黄力黎峰王登锋郑清君王振飞夏川曹文焕陈宾罗于恺李小莉文仁玉
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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