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Tightness performance detection test tool and detection method for main driver of shield machine

A technology of sealing performance and main drive, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of the fluid, can solve the problems of main bearing damage, loss, shield engineering influence, etc., to ensure Safety, the effect of reducing the risk of failure

Pending Publication Date: 2019-01-22
JIANGSU KAIGONG TUNNEL MACHINERY
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Problems solved by technology

[0002] The main drive system of the shield machine is called the "heart" of the shield machine, and the main drive seal is the "diaphragm of the heart". Once the main drive lip seal fails and loses its sealing effect, the mud and sand in the soil bin will enter the main drive. The main bearing will be damaged soon, causing the shield machine to be paralyzed, which will have a very serious impact and immeasurable loss on the shield project

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  • Tightness performance detection test tool and detection method for main driver of shield machine

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Embodiment Construction

[0017] A preferred embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. However, the scope of protection of the present invention is not limited to the following examples, that is, any simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the description are still within the scope of the patent of the present invention.

[0018] Such as figure 1 As shown, it is a shield machine main drive sealing performance test tooling according to the present invention, including a tooling sealing ring 4, an O-ring, a stud 6, a plug 3 and a pressure measuring device 9. Before testing, install the tooling sealing ring 4 on the main drive rotary body 8 between the outer sealing flange 11 of the soil bin and the inner sealing wear ring 1 of the soil bin, and use the double-ended stud 6 to rotate the tooling sealing ring 4 and the main drive The body 8 is closed and ...

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Abstract

The invention discloses a tightness performance detection test tool and detection method for a main driver of a shield machine. The tightness performance detection test tool comprises an annular soilbin external sealing flange and a tool sealing ring, wherein the annular soil bin external sealing flange is arranged at the shield machine, the tool sealing ring is arranged between the soil bin external sealing flange and a soil bin internal sealing wear-resistant ring, the bottom of the tool sealing ring is fixedly arranged on a main driver rotation body by a dual-head stud, the tool sealing ring is hermetically connected with the soil bin internal sealing wear-resistant ring, two sides of the main driver rotation body and the soil bin external sealing flange by O-shaped rings, a pluralityof internal sealing cavities are formed among the tool sealing, the soil bin internal sealing wear-resistant ring and the main driver rotation body, a plurality of external sealing cavities are formedamong the tool sealing ring, the soil bin external sealing flange and the main driver rotation body, and a pressure measurement device is arranged on each sealing cavity. The tightness of internal sealing and external sealing in the main driver can be detected before equipment leaving a factory, the failure risk of lip sealing during the construction process is greatly reduced, and the safety, the speed and the benefit of tunnel piercing are ensured.

Description

technical field [0001] The invention belongs to the technical field of shield machine sealing performance detection test, and in particular relates to a shield machine main drive sealing performance detection test tool and detection method. Background technique [0002] The main drive system of the shield machine is called the "heart" of the shield machine, and the main drive seal is the "diaphragm of the heart". Once the main drive lip seal fails and loses its sealing effect, the mud and sand in the soil bin will enter the main drive. The main bearing will be damaged soon, leading to the paralysis of the shield machine, which will bring very serious impact and immeasurable loss to the shield project. Therefore, it is particularly necessary to provide a test tool for testing the sealing performance of the main drive of the shield machine to truly test the sealing performance of the lip seal of the main drive of the shield machine before leaving the factory. Contents of the...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 苏延奇徐昊朗周剑
Owner JIANGSU KAIGONG TUNNEL MACHINERY
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