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Earth pressure balance shield machine main drive seal test device and method

A technology of sealing test and earth pressure balance, applied in the direction of using liquid/vacuum degree for liquid tightness measurement, and measuring the acceleration and deceleration rate of fluid, etc., can solve problems such as wear of large ring gear and pinion bearing, and achieve extended construction. The effect of construction period, increased construction costs and safety hazards, and avoidance of faulty repairs and replacement operations

Pending Publication Date: 2017-09-05
济南中铁重工轨道装备有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

Once slag or sand particles enter the main drive through the gap between the sealing compression ring and the lip seal,

Method used

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  • Earth pressure balance shield machine main drive seal test device and method

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[0011] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] The technical solutions of the present invention are summarized as follows: including tooling outer rings, tooling inner rings, hexagon socket bolts, and O-rings. There are two sealing systems in the gear area: the inner and outer sealing systems are responsible for sealing the oil inside the gear box and sealing the dregs in the excavation bin to prevent dregs and dust from entering the gear box. During the test, the outer ring of the tooling is installed on the outer sealing pressure ring and the outer sealing track, and the outer ring of the tooling is fixed with the outer sealing pressure ring and the ring parts with hexagon socket bolts, and the outer ring of the tooling is fixed on the outer sealing track. Use an O-ring to seal. Thus, the gap between the outer sealing pressing ring and the outer sealing raceway is sealed, thereby f...

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Abstract

The invention provides an earth pressure balance shield machine main drive seal test device. A tooling outer ring is installed on the outer side end of an outer seal pressure ring and an outer seal runway, a ring piece is arranged on the inner side end of the outer seal pressure ring, the tooling outer ring is connected with the outer seal pressure ring and the ring piece through a hexagon socket-head cap bolt; the tooling outer ring and the outer seal runway are connected using the hexagon socket-head bolt; the tooling outer ring and the outer seal pressure ring are sealed with an O-type ring; the tooling outer ring and the outer seal runway are sealed with the O-type ring, and the clearance between the outer seal pressure ring and the outer seal runway is sealed, a first labyrinth seal cavity is formed; by the earth pressure balance shield machine main drive seal test device, accurate detection is conducted on the main drive seal system of the shield machine when debug test is done before the factory delivery.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, and relates to an earth pressure balance type shield machine main drive sealing test device and method. Background technique [0002] The shield machine is an advanced tunnel construction equipment, and the equipment investment is huge. In order to maximize the utilization rate of the equipment, prolong the service life, and recover the investment as soon as possible, there are high requirements for the reliability of the equipment operation. Among them, the main drive system is one of the most core components of the shield machine. It is connected with the cutter head, and it can also bear the full thrust of the propulsion system while providing the rotary torque of the cutter head. Its reliability requirements are very high, and the main drive seal is the key to ensure its normal work. Once the slag or sand particles enter the main drive through the gap between the sealing compressi...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 翟振玲吴猛刘乐富
Owner 济南中铁重工轨道装备有限公司
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