A shield machine sealing structure for tunnel excavation construction
A sealing structure and tunneling technology, applied in tunnels, mining equipment, earth-moving drilling, etc., to prolong the service life, improve the sealing effect, and avoid maintenance.
Inactive Publication Date: 2019-11-05
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology
[0003] Aiming at the deficiencies of the prior art, the present invention provides a shield machine sealing structure for tunnel excavation construction, in order to solve the problem of how to improve the sealing effect of the shield machine and increase the service life of the sealing structure
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Embodiment Construction
[0023] In order to solve the problems existing in the existing technology, such as Figure 1 to Figure 5 As shown, the present invention provides a shield machine sealing structure for tunneling construction, including a shell 1, a central rotating body 2 and a shield body 3; one end of the central rotating body 2 is connected to the shield body 3, and the other end extends into the casing 1; the connection between the central rotating body 2 and the casing 1 is provided with an annular groove 4, and the casing 1 is provided with an annular flange 5, and the annular flange 5 is located in the annular groove 4, and the annular flange 5 The shoulder of the ring fits with the open end of the annular groove 4, and the closed end of the annular groove 4 is provided with a water inlet 8.
[0024] The annular groove 4 is provided with two gaskets passing through the annular flange 5, which are the first gasket 6 and the second gasket 7, and the second gasket 7 is located between the ...
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The invention discloses a seal structure for a shield machine for tunneling construction, and relates to the field of civil engineering equipment. The seal structure comprises a shell, a central revolving body and a shield body. One end of the central revolving body is connected with the shield body, and the other end of the central revolving body extends into the shell. An annular groove is formed in the joint of the central revolving body and the shell, an annular flange is arranged on the shell, the annular flange is located in the annular groove, and the shoulder of the annular flange is attached to the open end of the annular groove. Two sealing pads, namely, the first sealing pad and the second sealing pad, are arranged in the annular groove, the first sealing pad and the second sealing pad pass through the annular flange, and the second sealing pad is located between the first sealing pad and the open end of the annular groove. According to the seal structure for the shield machine for the tunneling construction, the sealing effect between the central revolving body and the shell of the shield machine is improved, the service life of the seal structure is prolonged, the condition that the shield machine requires frequent shutdown for maintenance is avoided, the working efficiency is reduced, and the production cost is reduced.
Description
technical field [0001] The invention relates to the field of civil engineering equipment, in particular to a shield machine sealing structure used for tunnel excavation construction. Background technique [0002] In the process of tunnel construction, a shield machine is usually used for tunnel excavation. The central rotating body of the shield machine is an important part of the hydraulic and water-air system of the shield machine, and it is installed in the shell of the shield machine. In the prior art, the center rotating body and the housing are sealed and installed through a traditional sealing ring. During the tunnel excavation process, due to the poor environment of the sealing position and the large force, the sealing ring wears quickly, making the sealing effect It is not ideal, and causes the shield machine to need to be shut down frequently for maintenance, which reduces work efficiency and increases costs. Contents of the invention [0003] Aiming at the def...
Claims
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IPC IPC(8): E21D9/06
CPCE21D9/0635
Inventor 张向东徐鸿涛
Owner LIAONING TECHNICAL UNIVERSITY