Cantilever type universal cutting mechanism, equipment and cutting method for tunnel
A technology of cutting equipment and cutting method, applied in the direction of stone processing equipment, work accessories, manufacturing tools, etc., can solve the problems of high cost, low demolition efficiency, insufficient thickness, etc., achieve low construction cost, high construction efficiency, and reduce explosive costs. Effect
Active Publication Date: 2021-04-13
中铁十一局集团第五工程有限公司 +1
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Problems solved by technology
[0002] Due to various reasons in the construction process of the secondary lining concrete of high-speed railway tunnels, defects such as emptying and insufficient thickness of the secondary lining concrete of the tunnel have seriously affected the operation safety of high-speed railways.
In order to ensure the safe operation of the tunnel, unqualified tunnel secondary lining concrete must be dismantled and rebuilt. The current tunnel secondary lining concrete renovation project uses conventional breaking hammers or blasting for demolition operations. The demolition efficiency is low and the cost is high. The irregularity of the second lining concrete increases the difficulty of backfilling
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[0026] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:
[0027] to combine figure 1 — image 3 As shown, a cantilever-type universal cutting mechanism for tunnels is mainly composed of a forearm 1, an "L"-shaped folding arm 2, a telescopic arm 3, a cutting arm 4, a first slewing support 5, a second slewing support 6, and a third slewing support. Support 7, cutting circular saw 8, depth control wheel 9, hydraulic motor 10, primary reducer 11, slewing bearing reducer 12 are formed.
[0028] The rear end and the middle part of the forearm 1 are respectively provided with a hinged mounting hole 1a, which is used for installing the cantilever type universal cutting mechanism on the refitted cantilever type equipment. Cantilever equipment includes excavators, cranes, drilling rigs, drilling rigs, etc.
[0029] The front end of the front arm 1 is connected with the rear end of the "L" shaped folding arm 2 through t...
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The invention discloses a cantilever type universal cutting mechanism for tunnels. The front end of the forearm is connected to the rear end of an "L"-shaped folding arm through a first slewing support, and the front end of the "L"-shaped folding arm is connected to the rear end of a telescopic arm through a The second slewing bearing is connected, the front end of the telescopic arm is connected with the rear end of the cutting arm through the third slewing bearing, the cutting circular saw is installed on the front end of the cutting arm, and the cutting circular saw is equipped with a depth control wheel for controlling the cutting depth. The present invention also provides a kind of cantilever type universal cutting equipment for tunnels. The cantilever type universal cutting mechanism for tunnels is installed on refitted excavators, cranes, rock drilling rigs, or on the rig. The present invention also provides a method for cutting the concrete of the second lining of the tunnel by using the above-mentioned cantilever type universal cutting equipment. It can realize 360° cutting in any spatial orientation, effectively improve the efficiency of the demolition and construction of the second lining concrete or rock of the tunnel, and save construction costs.
Description
technical field [0001] The invention relates to special equipment for concrete or rock cutting, in particular to a cantilevered universal cutting mechanism for tunnels, including cutting equipment for cantilevered universal cutting mechanisms for tunnels, and cantilevered universal cutting equipment for tunnels. cutting method. Background technique [0002] Due to various reasons in the construction process of the secondary lining concrete of high-speed railway tunnels, defects such as emptying and insufficient thickness of the secondary lining concrete of the tunnel have seriously affected the operation safety of high-speed railways. In order to ensure the safe operation of the tunnel, unqualified tunnel secondary lining concrete must be dismantled and rebuilt. The current tunnel secondary lining concrete renovation project uses conventional breaking hammers or blasting for demolition operations. The demolition efficiency is low and the cost is high. The irregularity of th...
Claims
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IPC IPC(8): B28D1/04B28D7/02B28D7/00
CPCB28D1/04B28D7/00B28D7/02
Inventor 张开顺魏强郑心铭刘为民谭立平刘志国吴凯
Owner 中铁十一局集团第五工程有限公司