Hand-held milling and digging machine manufacturing method

A production method and hand-held technology, which are applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of dead corners in the contour of the tunnel face, narrow tunnel operation environment, and inability to form excavation angles, so as to reduce labor costs. Excavation volume, labor saving, easy implementation effect

Active Publication Date: 2016-09-21
GANSU ROAD & BRIDGE CONSTR GROUP +1
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AI Technical Summary

Problems solved by technology

[0002] The face excavation of the loess tunnel is a key process of tunnel construction. Due to the narrow working environment of the tunnel, the general excavator bucket on the market cannot form an upward excavation angle of 90° when shoveling, although it can reach the excavation angle when backhoeing , but there is a dead angle in the contour of the tunnel face
[0003] At present, under normal circumstances, manual excavation with foreign picks is generally used, which not only increases the workload, but also takes a long time, prolonging the exposure time of the surrounding rock

Method used

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  • Hand-held milling and digging machine manufacturing method

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Embodiment Construction

[0019] Such as figure 1 , figure 2 As shown, the manufacturing method of the hand-held milling and digging machine includes the following steps:

[0020] (1) After cutting an ordinary steel plate with a thickness of 8mm, respectively make a disc 1 with a diameter of 25cm~30cm and three milling cutter heads 2 with a right triangle cross section and a depth of 50mm~100mm;

[0021] (2) Open three excavation holes 3 at an angle of 120° on the disc 1;

[0022] (3) Three milling and digging cutter heads 2 are horizontally welded on the edge of the disc 1 at an angle of 120° by arc welding;

[0023] (4) Weld the 10cm￠18 twist drill bit on the 5cm￠20 seamless steel pipe 4, and the seamless steel pipe 4 is welded on the center of one side of the disc 1;

[0024] (5) A central connecting rod 5 is provided at the center of the other side of the disc 1, and the central connecting rod 5 is connected with an electric tool with a rotating speed of 500~540r / min.

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Abstract

The invention relates to a manufacturing method for a handheld milling and excavating machine. The method includes the following steps that (1), a common steel plate with the thickness of 8 mm is cut and made into a disc with the diameter of 25-30 cm and three milling and excavating cutter bits with the right-triangle sections; (2), three soil outlet holes are formed in the disc at the interval of a 120-degree angle; (3), the three milling and excavating cutter bits are horizontally welded to the edge of the disc at the angle of 120 degrees by the adoption of electric-arc welding; (4), a 10-cmC / 18 auger bit is welded to a 5-cmC / 20 seamless steel tube, and the seamless steel tube is welded to the center of one face of the disc; (5), a center connecting rod is arranged in the center of the other face of the disc and connected with an electric tool with the rotating speed of 500-540 r / min. The manufacturing method is low in cost and easy to implement.

Description

technical field [0001] The invention relates to the technical field of excavating the face contour of a loess tunnel, in particular to a manufacturing method of a hand-held milling and digging machine. Background technique [0002] The face excavation of the loess tunnel is a key process of tunnel construction. Due to the narrow working environment of the tunnel, the general excavator bucket on the market cannot form an upward excavation angle of 90° when shoveling, although it can reach the excavation angle when backhoeing , but there is a dead angle in the contour of the tunnel face. [0003] At present, under normal circumstances, manual excavation with foreign picks is generally used, which not only increases the workload, but also takes a long time, prolonging the exposure time of the surrounding rock. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a low-cost and easy-to-implement method for manufacturing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00
CPCE21D9/00
Inventor 刘永超李善英于爱华米小强南娟妮
Owner GANSU ROAD & BRIDGE CONSTR GROUP
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