Simple and convenient shield stepping reaction device
A counterforce device and a portable technology, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of welding quality influence, large number of pre-embedded steel plates, slow advancing speed, etc., and achieve easy and labor-saving operation and low construction cost , fast effect
Active Publication Date: 2015-12-09
中铁十一局集团第五工程有限公司 +1
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Problems solved by technology
This method sets a large number of pre-embedded steel plates, wastes materials, and is affected by welding quality. The reaction force provided by the corbel is unreliable, the propulsion speed is slow, the mechanical equipment is complicated, and many operators are required.
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[0014] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0015] Such as figure 1 The simple and convenient shield stepping reaction device shown is mainly composed of two parts, a block body 1 and a mounting column 2, and the block body 1 and the mounting column 2 are integrally arranged. The lower surface of the block body 1 is a plane, which ensures that the lower surface is bonded to the ground 3 , thereby increasing the contact area with the ground 3 .
[0016] combine figure 1 —— Figure 5 As shown, the mounting column 2 is arranged in the reserved hole on the lower left side of the block body 1 for insertion into the ground 3 . The middle part of the right side wall of the block body 1 is provided with an arc-shaped notch 1a extending up and down on the axis, which is used as a positioning contact surface for the ground steel rod 7 . A positioning pin hole 1b with an axis extending horizontally is opened ...
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The invention discloses a simple and convenient shield stepping counter-force device which comprises a block-shaped body with the lower surface being a plane. An installing column is arranged below the block-shaped body to be used for being inserted into a ground reserved hole, an arc-shaped notch with the axis extending up and down is arranged in the middle of a right side wall of the block-shaped body and serves as the positioning contact surface of a ground steel bar, a locating pin hole with the axis extending horizontally is arranged in the arc-shaped notch and used for enabling the ground steel bar to be fixed on the block-shaped body, the upper left portion of the block-shaped body is provided with a groove for the end of a propulsion jack to extend, the groove divides the upper left portion of the block-shaped body into two installing support lugs which are at intervals in a front-and-back mode, round holes vertically penetrating through the two installing support lugs are further arranged on the upper left portion of the block-shaped body to enable the propulsion jack and a hinged shaft of the block-shaped body to pass, and a lifting support lug is arranged at the top of the block-shaped body. The simple and convenient shield stepping counter-force device is simple in structure, convenient to operate and carry and quick in propulsion speed and can be recycled.
Description
technical field [0001] The invention relates to the technical field of tunnel shield construction, in particular to a counter force device. Background technique [0002] Shield machine is a special construction machine for tunnel excavation. At present, the stepping reaction force device of tunnel shield machine adopts pre-embedded steel plate, and the reaction force corbel is welded on the steel plate. This method sets a large number of pre-embedded steel plates, wastes materials, and is affected by welding quality. The reaction force provided by the corbel is unreliable, the propulsion speed is slow, the mechanical equipment is complicated, and many operators are required. Contents of the invention [0003] The present invention improves on the above technical problems, and intends to provide a shield stepping reaction force device with simple structure, convenient operation, portability, repeated use, and fast propulsion speed. [0004] In order to achieve the above pu...
Claims
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IPC IPC(8): E21D9/06
Inventor 陈建斌王明华蒋延富刘明辉
Owner 中铁十一局集团第五工程有限公司