Main bearing multi-layer sealing structure of complete section tunnel boring machine

A technology of tunnel boring machine and main bearing, which is applied in the direction of engine seal, tunnel, mechanical equipment, etc., can solve the problems of main bearing lubricating oil leakage, shield construction loss, mud water and slag entering, etc., to ensure safe service life , safe and reliable sealing protection, innovative and scientific effects

Inactive Publication Date: 2008-10-08
SHENYANG HEAVY MACHINERY GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A good sealing system is the prerequisite to ensure the performance and safe service life of the main bearing. If there is a problem with the sealing of the main bearing during the const

Method used

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  • Main bearing multi-layer sealing structure of complete section tunnel boring machine
  • Main bearing multi-layer sealing structure of complete section tunnel boring machine
  • Main bearing multi-layer sealing structure of complete section tunnel boring machine

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Embodiment Construction

[0011] Referring to the accompanying drawings, the main bearing of the full-section tunnel boring machine has a multi-layer sealing structure. The whole device consists of a cutterhead support ring 1, an outer sealing ring pressure ring 2, an outer sealing ring spacer 3, a lip-shaped outer sealing ring 4, and an outer ring of the main bearing. 5. Main bearing inner gear ring 6, drum 7, inner sealing ring pressure ring 8, inner sealing ring spacer 9, lip-shaped inner sealing ring 10, the main bearing is divided into main bearing outer ring 5, main bearing The inner ring gear 6 is a drum 7 between the inner ring gear 6 of the main bearing and the supporting ring 1 of the cutter head, and there are three rows of cylindrical rollers between the inner and outer rings. The cutter head passes through the drum 7 and the inner ring gear 6 of the main bearing. The bolts are fastened and connected. When the pinion in the main drive drives the inner ring gear 6 of the main bearing to rotat...

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PUM

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Abstract

The invention provides a multi-layer sealing structure for full section earth boring machine main bearing in shield construction machine engineering machinery technique field in electric power plant industry, comprising a blade disc support ring, an external seal ring compression ring, an external seal ring partition sleeve, a lip shaped external seal ring, a main bearing external ring, a main bearing intenal gear ring, a barrate, an internal seal ring compression ring, a internal seal ring partition sleeve, a lip shaped internal seal ring. The main bearing has a main bearing external ring, a main bearing internal gear ring in structure, the barrate is provided between the main bearing external ring and the main bearing internal gear ring, the gear from structure of the main bearing internal gear ring has engaging transmission with a pinion in main drive, a layer of seal is separately arranged on internal and external side of the barrate, each layer is separated in to five sealing chambers by using the lip shaped external sealing ring, the lip shaped sealing ring through the external sealing ring partition sleeve, the internal sealing ring partition sleeve. labyrinth type conjunction is processed between the blade disc support ring and the external seal ring compression ring, internal seal ring compression ring.

Description

Technical field: [0001] The invention relates to a multi-layer sealing structure of a main bearing of a full-section tunnel boring machine in the technical field of shield machine engineering machinery. Background technique: [0002] At present, during the construction process of the shield machine, an electric motor or a hydraulic motor is used to drive the cutter head to rotate through the main drive to realize the cutting and excavation of rock and soil. The main bearing is one of the core components of the cutter head drive of the shield machine, and it should have high reliability and long service life. A good sealing system is a prerequisite for ensuring the performance and safe service life of the main bearing. If there is a problem with the sealing of the main bearing during construction, it will cause the main bearing lubricating oil to leak or muddy water and slag to enter the main bearing or the gearbox. Bring immeasurable loss to shield construction. Therefore,...

Claims

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Application Information

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IPC IPC(8): F16J15/16F16J15/32F16J15/447E21D9/06F16J15/3236
Inventor 邓立营宋连国高伟贤马汉春宋协春
Owner SHENYANG HEAVY MACHINERY GROUP
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