Development machine for crushing existing concrete conduit

A roadheader and concrete technology, applied in tunnels, earthwork drilling, mining equipment, etc., can solve the problems of increased turnover torque, heavy weight, and affecting work efficiency, and achieve the effect of reduced power and reduced weight

Inactive Publication Date: 2006-11-22
柏素秦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned full-section roadheader can cut the reinforcement of mild steel (SS400), it cannot cut the interface steel of the existing concrete pipeline. Before crushing the existing concrete pipeline, the operating machine and the operator must first enter the existing concrete pipeline. Cut off the joint steel in equal parts. In addition, if the length of the cut steel bar is longer than the cutter, it will be wrapped around the cutter. To remove them, the operation will be interrupted.
Therefo

Method used

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  • Development machine for crushing existing concrete conduit
  • Development machine for crushing existing concrete conduit
  • Development machine for crushing existing concrete conduit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1, see figure 1 As shown in Figure 2, the tunnel boring machine used to break the existing concrete pipe has an inner diameter larger than the outer diameter of the existing concrete pipe 2 buried in the ground. In front of the main body of the roadheader, a wheel-shaped head 4 is installed only at a ring position necessary for crushing the existing concrete pipe 2 and is rotated by a driving source. The head 4 has a wheel-shaped cutter head 6. The center of the wheel-shaped cutter head 6 forms a large opening 5 that can enter and exit the workers, materials, working machines, and crushed objects. The wheel-shaped cutter head 6 is separated by a certain distance every time. A freely rotatable shaft 13 is installed along the radius, and a cylindrical hob 7 is installed on each rotating shaft 13.

[0027] A waterproof wall (not shown in the figure) with an opening in the center is installed at the rear of the wheel-shaped handpiece 4. A driving device 11 is installed...

Example Embodiment

[0030] Example 2, see image 3 , A roadheader for crushing existing concrete pipes. On its wheel-shaped head 4, the circumferential position of the proximal end of the rotating shaft 13 equipped with the hob 7 is shifted to the side of the rotation direction to form a displacement device with the radial direction. The inclination angle α, the inclination angle α should be 3°~45°. When the inclination angle α in the radial direction is below 3°, and the inclination angle in the radial direction is close to the angle of the radius, the steel bars and interface steel broken and cut by the hob 7 will be squeezed into the ground and cannot be removed and recycled; When the inclination angle α in the radial direction is greater than 45°, the crushing and cutting force of the hob 7 will decrease. The structure of the second embodiment can prevent the crushing and cutting force of the hob 7 from being reduced, and facilitate the removal and transportation of crushing and cutting debris fro...

Example Embodiment

[0031] Example 3 is the composition of Example 1 and Example 2. A roadheader used to break existing concrete pipes. On its wheel-shaped head 4, the proximal end of the rotating shaft 13 equipped with the hob 7 is moved to the axial direction. The rear side position is inclined to form an inclination angle β with the vertical line in the radial direction; in addition, the circumferential position of the proximal end of the connecting shaft 13 equipped with the hob 7 is shifted to the rotation direction by a device to form an inclination angle α with the radial direction. The structure of the third embodiment can prevent the crushing and cutting force of the hob 7 from being reduced, and it is easy to carry out the removal and transportation of crushing and cutting debris from the inner diameter side.

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Abstract

The invention relates to a tunneller for breaking concrete tube, which has a head and a knife disk its front. It is characterized in that: said head is a wheel head with central cut; and said knife disk is a wheel knife disk with a central cut and mounted with several rotational hob cutters; the rotational axles of said hob cutters are radial arranged. The inventive improvement comprises: the wheel knife disk is mounted in the anti-sand cylinder whose front has crack knife; the wheel knife disk is in taper shape, while the remote end of hub knife rotational axle is incline to the moving direction of knife disk to form an incline degree beta; two ends of rotational axle are connected to the arc swinger, to make the circumference of remote end displaced with the rotation direction, to form an incline degree alpha with the radius. The invention has light head, lower driving power, and a cut at the center, therefore, worker and working machine can enter into the concrete tube.

Description

Technical field [0001] The invention relates to a road boring machine, in particular to a road boring machine used for breaking existing concrete pipes, which is used for non-excavation of existing concrete pipes that have been buried underground and used as rainwater drainage pipes or sewers. Broken, and then lay a new pipeline. Background technique [0002] The existing pipe jacking machine for crushing existing concrete pipes is a full-face boring machine. For example, the "Ping-98077" technical solution of the Japanese Patent Gazette is equipped with rotating digging teeth on the entire digging section and adopts non-opening digging machines. The method of digging renews the existing concrete pipeline buried in the ground, that is, the existing concrete pipeline is broken, and a new pipeline is laid thereafter. Although the above-mentioned full-section roadheader can cut the steel bars of mild steel (SS400), it cannot cut the joint steel of the existing concrete pipe. Before ...

Claims

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Application Information

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IPC IPC(8): E21D9/11
Inventor 柏素秦
Owner 柏素秦
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