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Road surface cutting equipment and method for highway construction

A technology for cutting equipment and pavement, applied in the direction of roads, roads, road repair, etc., can solve the problems of concrete pavement edge damage, cutting device falling on the roadbed, etc.

Active Publication Date: 2021-04-30
湖南华泰泓湘工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the concrete pavement is higher than the roadbed, and when cutting expansion joints, the expansion joints need to run through the entire road surface perpendicular to the length of the road surface. The pavement falls onto the subgrade, and the concrete is not fully cured when cutting, which is easy to cause damage to the edge of the concrete pavement

Method used

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  • Road surface cutting equipment and method for highway construction
  • Road surface cutting equipment and method for highway construction
  • Road surface cutting equipment and method for highway construction

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Effect test

Embodiment 1

[0043] The embodiment of the present application discloses a pavement cutting device for highway construction, refer to figure 1 , including a frame 1, the frame 1 spans both sides of the road, the two ends of the frame 1 are respectively fixed with a connecting plate 2, the bottom of the connecting plate 2 is fixed with a base 3, and the base 3 is provided with a walking drive that drives the frame 1 to move In the device 4 , the frame 1 is provided with a cutting assembly 5 for grooving and a sliding assembly 6 for driving the cutting assembly 5 to slide along the frame 1 .

[0044] refer to figure 2, the cutting assembly 5 includes a cutting support 51, a first motor 52 is fixed on the lower surface of the cutting support 51, a saw blade 53 is fixed on the output shaft of the first motor 52, and a space for the saw blade 53 to pass through is provided on the cutting support 51 The slot makes the whole device more compact. When the first motor 52 is connected to the extern...

Embodiment 2

[0056] The application also discloses a road surface cutting device and method for highway construction, comprising the following steps:

[0057] Step 1: Install the rack 1 across the road to the position that needs to be slotted;

[0058] Step 2: Then adjust the height of the cutting bracket 51 through the lifting assembly 7, and then adjust the height of the saw blade 53;

[0059] Step 3: Start the first motor 52 and the second motor 62 in sequence, the first motor 52 drives the saw blade 53 to rotate for cutting, and the second motor 62 drives the cutting assembly 5 to move, so that the cutting assembly 5 can move from one side of the road to the other side;

[0060] Step 4: After the cutting is completed, the cutting assembly 5 is lifted through the lifting assembly 7, and then the traveling device 4 is started to move the frame 1 to the next position to be cut;

[0061] Step 5: Repeat steps 2 to 4.

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Abstract

The invention relates to road surface cutting equipment and method for highway construction, and belongs to the field of road construction. The road surface cutting equipment comprises a rack crossing a road surface, a walking device is arranged on the rack, a cutting assembly and a sliding assembly driving the cutting assembly to slide horizontally are arranged on the rack, and the cutting assembly comprises a cutting support; a saw blade is rotationally connected to the cutting support, a first motor for driving the saw blade to rotate is arranged on the cutting support, the sliding assembly comprises a first lead screw horizontally and rotationally connected to the rack and a second motor for driving the first lead screw to rotate, and a sliding base is in threaded connection to the first lead screw. A lifting assembly is arranged on the sliding base and fixedly connected with the cutting support. The equipment has the effect of reducing damage to the road surface when the expansion joint is cut.

Description

technical field [0001] The present application relates to the field of road construction, in particular to a road surface cutting device and method for road construction. Background technique [0002] In the process of concrete setting and hardening, cement hydration releases a lot of heat, causing the concrete temperature to rise; most of the cement hydration reaction ends, and the concrete temperature begins to drop. During the cooling process, the concrete has solidified and hardened, and the shrinkage caused by the cooling will cause the concrete to crack, and the direction of the cracks is relatively random, which seriously affects the quality and service life of the pavement. Therefore, generally within 12 hours after the concrete is poured, a cutting joint with a depth of about one-third of the thickness of the pavement is cut on the road surface, which can induce concrete shrinkage cracks to occur along the cutting joints, prevent random cracks, and then pavement shr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/09
CPCE01C23/0933
Inventor 周承淼徐维韦章施秋云
Owner 湖南华泰泓湘工程有限公司