A kind of shield machine for tunnel crossing anchor cable construction with shield method
A technology of shield tunneling method and shield machine, which is applied in tunnels, mining equipment, earthwork drilling and mining, etc. It can solve the problems of inconvenient installation of drill bits and easy rotation, so as to ensure service life, reduce friction and increase friction Effect
Active Publication Date: 2022-05-03
CHINA CONSTR FOURTH ENG DIV
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[0002] The shield machine is a tunnel boring machine that uses the shield method. The construction method of the shield tunnel is that the tunnel boring machine builds (lays) the "shield" (referring to the supporting segment) of the tunnel while digging, which is different from the open construction. According to the working principle, the shield machine is generally divided into hand-excavated shield, extrusion shield, semi-mechanical shield (local air pressure, global air pressure), mechanical shield (open chest cutting shield, air pressure Shield, mud-water pressurized shield, earth pressure balance shield, hybrid shield, special-shaped shield), when people install the drill bit on the shaft of the shield machine, because the shaft is mostly a cylindrical structure, the drill bit is inserted After the shaft, it is easy to rotate, which is inconvenient for people to install the drill bit
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0025] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rat...
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The present invention relates to the technical field of shield machines, in particular to a shield machine for shield tunnel crossing anchor cable construction, including a shield assembly, a drill bit, a protection assembly, a lifting assembly and a fixing assembly, the drill bit is installed on the shield One side of the shield assembly, the protective assembly is sleeved on the outside of the drill bit, and welded to the outer wall of the shield assembly, the lifting assembly is located on the outer wall of the shield assembly, and is connected to the shield assembly The structural components are fixedly connected; after the limit block is attached to the rotating arm of the drill bit, the friction between the drill bit and the drill bit can be increased, so that the drill bit is not easy to rotate, and it is convenient for people to install the drill bit on the mounting plate, and then insert the drill bit into the protective component. Finally, the spring pushes the sliding sleeve to move through elongation, so that the roller moves until it fits the rotating arm of the drill bit. While the drill bit is rotating, the roller wheel can rotate synchronously with the drill bit, reducing the friction force when the drill bit rotates, and ensuring the drill bit. service life.
Description
technical field [0001] The invention relates to the technical field of shield machines, in particular to a shield machine for construction of shield tunnels crossing anchor cables. Background technique [0002] The shield machine is a tunnel boring machine that uses the shield method. The construction method of the shield tunnel is that the tunnel boring machine builds (lays) the "shield" (referring to the supporting segment) of the tunnel while digging, which is different from the open construction. According to the working principle, the shield machine is generally divided into hand-excavated shield, extrusion shield, semi-mechanical shield (local air pressure, global air pressure), mechanical shield (open chest cutting shield, air pressure Shield, mud-water pressurized shield, earth pressure balance shield, hybrid shield, special-shaped shield), when people install the drill bit on the shaft of the shield machine, because the shaft is mostly a cylindrical structure, the d...
Claims
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IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 刘双红康卫李冬付小畅黄志良
Owner CHINA CONSTR FOURTH ENG DIV