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A slotting device for adding dowel bars at the joints of cement concrete pavement blocks

A grooving equipment and joint technology, applied in the field of fast and efficient grooving construction equipment, can solve the problems of complex grooving process, inconvenient operation and high labor cost, and achieve the effect of clear principle, convenient operation and reduced labor intensity

Active Publication Date: 2018-09-18
中南安全环境技术研究院股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional slotting method is: after lofting according to the design size, first use a cutting machine to cut, and then use a pick to remove the cement concrete in the slot. Due to the small size of the slot, the operation is inconvenient and the efficiency is low. Small, with a large number of slots, so it has a great impact on the construction period and high labor costs
In order to solve the problems of complex slotting process, low efficiency, and high labor cost caused by traditional slotting, it is urgent to develop a slotting machine that is easy to operate, saves labor, and has high slotting efficiency for adding dowel bars at the joints of cement concrete pavement blocks. slot device

Method used

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  • A slotting device for adding dowel bars at the joints of cement concrete pavement blocks
  • A slotting device for adding dowel bars at the joints of cement concrete pavement blocks
  • A slotting device for adding dowel bars at the joints of cement concrete pavement blocks

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Embodiment 1

[0040] Embodiment 1: as figure 1 As shown, this embodiment takes one piece of equipment controlling a group of grooving and cutting devices as an example.

[0041] A slotting device for adding dowel bars at the joints of cement concrete pavement blocks, comprising a frame 1, a running device 2 and a slotting device 3, the running device 2 and the slotting device 3 are fixedly installed on the machine On the frame 1, it is characterized in that the slotting device 3 includes a first support 4, a second support 5, and a hydraulic cylinder 6, the first support 4 is located at the top of the frame 1, and the hydraulic cylinder 6 is fixed Installed on the first support 4; the second support 5 is located at the front end of the frame 1; Device 9; the support sleeve 8 is located in the middle of the slotting cutting device 9, the square support plate 7 is fixedly installed with an arc-shaped support arm 10 for adjusting the depth of the slot, and the support arm 10 is connected with...

Embodiment 2

[0047] Embodiment 2: The high-efficiency slotting equipment for adding dowel bars at the joints of cement concrete road slabs in this embodiment is a further optimization of the above embodiment, the only difference is that the tapered milling head 11-3 and the tool holder 11 -2 is an obtuse angle, and the size of the obtuse angle is between 100-150°, so that the conical milling head 11-3 is in closer contact with the cement concrete, and the end of the conical milling head 11-3 is ring-shaped Gathering the concave design inwards can ensure that the chain milling mechanism 11 is more labor-saving in the process of slotting, improves the wear resistance of the conical milling head 11-3, and prolongs the life of the chain milling mechanism 11 slotting.

Embodiment 3

[0048] Embodiment 3: as figure 2 As shown, this embodiment takes one device controlling four sets of grooving and cutting devices as an example.

[0049] A slotting device for adding dowel bars at the joints of cement concrete pavement blocks includes four sets of slotting cutting devices 9, and the slotting cutting devices 9 are fixedly installed on the support sleeve 8 at equal distances and with adjustable distances , the second support 5 is connected to the middle part of the support sleeve 8, the side of the square support plate 7 perpendicular to the slotting cutting device 9 is fixedly connected to the support arm 10, and the four sets of slotting cutting devices 9 Slotted drive sprocket 15 shares a power main shaft 13, drives power main shaft 13 to rotate by driving device 18 through gear drive 19, thereby drives chain type milling mechanism 11 to run synchronously on respective guide beam 12 respectively; It is connected with the middle part of the power spindle 13,...

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Abstract

The invention discloses slotting equipment for additionally arranging dowel bars at joints of cement concrete pavement plates. The slotting equipment controls an arc-shaped supporting arm to match with a supporting bar to act through stretching out and drawing back of a hydraulic oil cylinder piston rod so that a slotting and cutting device can be driven to rotate, and adjusting of the slotting depth is achieved. The slotting equipment is clear in principle, simple in structure, convenient to operate and capable of saving time and effort, precisely controlling the position, size, distance and depth of slotting and slotting a plurality of slots at the same time; and compared with manual slotting, the slotting equipment has the characteristics of being high in efficiency, capable of reducing manufacturing cost, convenient to operate and the like.

Description

technical field [0001] The invention relates to the field of cement concrete pavement reconstruction engineering, in particular to fast and efficient slotting construction equipment for adding dowel bars at joints of cement concrete pavement blocks. Background technique [0002] The transverse joints of the slabs are the weakest part of the highway cement concrete pavement, and are prone to mud pumping and misalignment. In addition to the poor resistance of the base layer to erosion, the load transfer capacity of the joints is also an important reason. At the same time, after the occurrence of mud pumping, the joints without dowel bars are prone to plate breakage due to the large deflection of the plate edges. Various foreign joint damage estimation models show that the installation of dowel bars has the greatest impact on joint fracture damage. After setting dowel bars, the total cost of the road surface will increase by 5% to 8%, but the life of the joints can be improved ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/09E01C11/14
CPCE01C11/14E01C23/0933
Inventor 张厚记成猛区桦宗炜郭洪军何文华卢天翔陈忠华
Owner 中南安全环境技术研究院股份有限公司
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