CN113186788A - Wet joint cutting device of concrete road surface - Google Patents
Wet joint cutting device of concrete road surface Download PDFInfo
- Publication number
- CN113186788A CN113186788A CN202110434788.7A CN202110434788A CN113186788A CN 113186788 A CN113186788 A CN 113186788A CN 202110434788 A CN202110434788 A CN 202110434788A CN 113186788 A CN113186788 A CN 113186788A
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- China
- Prior art keywords
- cutter head
- wet
- concrete
- rack
- guide rail
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0906—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
- E01C23/0926—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters
- E01C23/0933—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a concrete pavement wet joint cutting device which comprises a transverse guide rail, a liftable bracket structure arranged at two ends of the guide rail and a concrete wet cutting machine arranged in the middle of the guide rail, wherein the transverse guide rail is provided with a plurality of guide grooves; the concrete wet cutting machine comprises a rack, a walking mechanism, a cutter head and a cutting motor; the frame is provided with a traveling mechanism capable of traveling along the guide rail; the cutter head is positioned at the lower part of the rack, the middle part of the cutter head penetrates through the rotating shaft, one end of the rotating shaft is connected with the rack, the other end of the rotating shaft is connected with a cutting motor arranged on the rack, and the cutting motor drives the cutter head to rotate through the rotating shaft; sponge blocks with the isolating agent are symmetrically arranged on two sides of the cutter head, and the cutter head is tightly attached to the inner sides of the two sponge blocks. The invention has the beneficial effects that: the wet joint cutting device coats the separant on the surface of the cutter head, and the separant is coated on the surface of the joint cutting when the cutter head cuts the joint, so that concrete on two sides of the joint cutting is in contact with each other but is not bonded with each other, cracks generated in the service of the concrete pavement are extremely small, the waterproof capacity of the pavement is strong, and the service life is long.
Description
Technical Field
The invention relates to a joint cutting device, in particular to a wet joint cutting device for a concrete pavement.
Background
Improving the smoothness and the service life of the road surface is the research direction of future traffic. However, the concrete has the phenomena of drying shrinkage and cooling shrinkage, and the tensile strength of the concrete is low, so that certain cracks are inevitably generated in the service process. Such naturally occurring cracks, which are not regular in shape; when cracks at certain parts are large, rainwater on the road surface invades into the interior of a road along the cracks, so that the reinforcing steel bars are corroded, and the roadbed is softened and damaged. Therefore, the shape of the crack affects the service life of the road.
At present, the prior art also has a construction scheme that a grinding wheel disk is used for cutting a solidified concrete pavement so that a crack becomes regular. However, the joint seam generated by the traditional mode is wider (3-5 mm, and the depth is 30-60 mm), so that the load transfer capacity between concrete slabs is reduced; meanwhile, the distance between the cutting seams is far (the distance between the cutting seams is 3-4 m generally), when the concrete pavement cracks under the condition of thermal shrinkage, the deformation of the pavement can be concentrated at the cutting seams, wider cracks can appear at the cutting seams, the reflection cracks of the asphalt concrete pavement layer can be easily caused in the service process, and the service life of the pavement structure is shortened while the driving comfort of the pavement is reduced. Therefore, it is necessary to design a construction device that satisfies the crack breaking requirement.
Disclosure of Invention
The invention aims to provide a concrete pavement wet joint cutting device which has small cracking cracks, controllable cracking rules and no damage to load transfer at the cracks, aiming at the defects of the prior art.
The technical scheme adopted by the invention is as follows: a concrete pavement wet joint cutting device comprises a transverse guide rail, a liftable bracket structure arranged at two ends of the guide rail and a concrete wet cutting machine arranged in the middle of the guide rail; the concrete wet cutting machine comprises a rack, a walking mechanism, a cutter head and a cutting motor; the frame is provided with a traveling mechanism capable of traveling along the guide rail; the cutter head is positioned at the lower part of the rack, the middle part of the cutter head penetrates through the rotating shaft, one end of the rotating shaft is connected with the rack, the other end of the rotating shaft is connected with a cutting motor arranged on the rack, and the cutting motor drives the cutter head to rotate through the rotating shaft; sponge blocks with the isolating agent are symmetrically arranged on two sides of the cutter head, and the cutter head is tightly attached to the inner sides of the two sponge blocks.
According to the scheme, the isolating agent is concrete releasing agent or engine oil.
According to the scheme, the outer side of the sponge block is fixed on the mounting frame, the mounting frame is connected with the adjusting screw rod, and the adjusting screw rod is mounted on the rack through the nut; vertical bar-shaped holes are formed in the rack, the end parts of the adjusting screws are inserted into the bar-shaped holes, and the adjusting screws can move up and down in the bar-shaped holes, so that the depth of the sponge block which is bitten by the adjusting cutter head is adjusted.
According to the scheme, the cross section of the cutter head is in a shuttle shape.
According to the scheme, the travelling mechanism comprises a travelling wheel and a travelling motor connected with the travelling wheel, the travelling wheel is matched with the guide rail, and the travelling motor can drive the travelling wheel to travel along the length direction of the guide rail.
According to the scheme, the support structure comprises a horizontal beam, rollers, support columns and height adjusting columns; two groups of rollers are arranged at two ends of the horizontal beam respectively; the bottom of the support column is fixed in the middle of the horizontal beam, the support column is hollow inside, the height adjusting column is installed in the support column, and the guide rail is fixed at the top of the height adjusting column.
According to the scheme, the rack is installed on one side of the height adjusting column and meshed with the gear, the wheel shaft of the gear is connected with the height adjusting motor, and when the height adjusting motor drives the gear to rotate, the rack drives the height adjusting column to rise or fall in the support column.
According to the scheme, the concrete wet cutting machine is additionally provided with an isolating agent storage box for storing the isolating agent, and the bottom of the isolating agent storage box is communicated with the sponge block through an isolating agent conduit.
The invention has the beneficial effects that:
according to the wet joint cutting device, the surface of the cutter head is coated with the isolating agent, the isolating agent is coated on the surface of the joint cutting when the cutter head cuts the joint, so that concrete on two sides of the joint cutting is in contact with each other but is not bonded, cracks generated in the service process of the concrete pavement are extremely small, the waterproof capacity of the pavement is strong, and the service life is long; in addition, because the crack is smaller, the concrete on the two sides of the crack still has stronger mechanical engaging force, so that the load transfer capacity of the concrete pavement on the two sides of the crack is stronger, the integral rigidity of the pavement is higher, and the concrete pavement is beneficial to bearing larger load. The wet joint cutting device has the characteristics of energy conservation, no noise, no dust, quick construction and the like during construction.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the concrete wet cutting machine in this embodiment.
FIG. 3 is a sectional view of the concrete wet cutting machine in this embodiment.
Fig. 4 is a schematic view of the structure of the stent in this embodiment.
Wherein: 1-concrete, 11-opening cutting seam, 12-closing cutting seam, 2-concrete wet cutting machine, 21-sponge block, 22-cutterhead, 23-isolating agent, 24-frame, 25-walking motor, 26-isolating agent guide pipe, 27-adjusting screw, 28-cutting motor, 29-isolating agent storage box, 210-walking wheel, 3-guide rail, 4-support structure, 41-height adjusting column, 42-support column, 43-height adjusting motor, 44-horizontal beam and 45-roller.
Detailed Description
Fig. 1 shows a wet joint cutting device for a concrete pavement, which comprises a transverse guide rail 3, a liftable bracket structure 4 arranged at two ends of the guide rail 3, and a concrete wet cutting machine 2 arranged in the middle of the guide rail 3; the guide rail 3 and the support structures 4 at two ends form a portal frame structure.
As shown in fig. 2 and 3, the concrete wet cutting machine 2 comprises a frame 24, a walking mechanism, a cutter head 22 and a cutting motor 28; the frame 24 is provided with a traveling mechanism capable of traveling along the guide rail 3; the cutter head 22 is located at the lower part of the frame 24, the middle part of the cutter head 22 penetrates through the rotating shaft, one end of the rotating shaft is connected with the frame 24, the other end of the rotating shaft is connected with a cutting motor 28 installed on the frame 24, and the cutting motor 28 drives the cutter head 22 to rotate through the rotating shaft, so that the cutter head 22 cuts the concrete 1.
Sponge blocks 21 with a separant 23 adsorbed are symmetrically arranged at two sides of a cutter head 22, and the cutter head 22 is clung to the inner sides of the two sponge blocks 21 (the upper edge part of the cutter head 22 is wrapped in the sponge blocks 21); the outer side of the sponge block 21 is fixed on a mounting rack, the mounting rack is connected with an adjusting screw 27, and the adjusting screw 27 is installed on the rack 24 through a nut; in the invention, a vertical strip-shaped hole is formed in the frame 24, the end part of the adjusting screw 27 is inserted into the strip-shaped hole, and the adjusting screw 27 can move up and down in the strip-shaped hole, so that the depth of the sponge block 21 which is bitten by the cutter head 22 is adjusted, and the width of the separant 23 in the sponge block 21 attached to the surface of the cutter head 22 is changed.
The concrete wet cutting machine 2 is also additionally provided with an isolating agent storage box 29 for storing the isolating agent 23, and the bottom of the isolating agent storage box 29 is communicated with the sponge block 21 through an isolating agent conduit 26 to provide the isolating agent 23 for the sponge block 21.
Preferably, the impeller 22 is shuttle shaped in cross section. Preferably, the traveling mechanism comprises a traveling wheel 210 and a traveling motor 25 connected with the traveling wheel 210, the traveling wheel 210 is matched with the guide rail 3, and the traveling motor 25 can drive the traveling wheel 210 to travel along the length direction of the guide rail 3.
As shown in fig. 3, the support structure 4 includes a horizontal beam 44, a roller 45, a support column 42, and a height-adjusting column 41; two groups of rollers 45 are respectively arranged at two ends of the horizontal beam 44; the bottom of the support column 42 is fixed in the middle of the horizontal beam 44, the support column 42 is hollow, the height adjusting column 41 is installed in the support column 42, and the guide rail 3 is fixed on the top of the height adjusting column 41 (which can be welded). Preferably, a rack is installed on one side of the height adjusting column 41 along the height direction, the rack is meshed with a gear, a wheel shaft of the gear is connected with the height adjusting motor 43, and when the height adjusting motor 43 drives the gear to rotate, the rack drives the height adjusting column 41 to rise or fall in the support column 42, so that the height adjustment of the guide rail 3 is realized, and the depth of the shuttle-shaped cutter head 22 cutting into the concrete 1 is adjusted.
In the invention, the walking motor 25 can drive the walking wheels 210 to move along the guide rails 3 when the cutter head 22 cuts the concrete 1, so that the whole concrete wet cutting machine 2 moves. The release agent conduit 26 is capable of introducing the release agent 23 in the release agent storage tank 29 into the sponge block 21 when the cutter deck 22 cuts the concrete 1. The release agent 23 is a concrete release agent, engine oil or other solvent or solution capable of forming a film on the surface of concrete. The adjusting bolt can move up and down to adjust the depth of the cutter disc 22 biting into the sponge block 21 when the cutter disc 22 cuts the concrete 1, and then the width of the trace of the separant 23 on the cutter disc 22 is adjusted. The cutting motor 28 can drive the cutter head 22 to rotate in the reverse direction (relative to the advancing direction of the cutting machine) to cut the concrete 1.
In this embodiment, the guide rail is a rectangular steel member. After the concrete is vibrated to be compact, the concrete is in a soft plastic state, and the concrete joint cutting process of the wet joint cutting device is as follows:
1. after concrete pouring and vibrating are finished, the wet joint cutting device is erected at a position needing joint cutting, and the direction of the guide rail 3 is kept to be vertical to the advancing direction of a road;
2. the height of the guide rail 3 is adjusted through the height adjusting column 41 supporting the guide rail 3, so that the cutting depth of the cutter head 22 into the concrete 1 is adjusted;
3. starting the cutting motor 28, and starting the cutter head 22 to rotate; because the cutter head 22 is contacted with the sponge block 21 saturated with the release agent 23, the release agent 23 can be uniformly coated on the edge part of the rotating cutter head 22;
4. starting a walking motor 25, wherein the walking direction of the concrete cutting machine 2 is opposite to the rotating direction of the cutter head 22, and at the moment, the separant 23 on the surface of the cutter head 22 is uniformly coated on the slit surface of the concrete;
5. the slit is vibrated closed.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (8)
1. A concrete pavement wet joint cutting device is characterized by comprising a transverse guide rail, a liftable bracket structure arranged at two ends of the guide rail and a concrete wet cutting machine arranged in the middle of the guide rail; the concrete wet cutting machine comprises a rack, a walking mechanism, a cutter head and a cutting motor; the frame is provided with a traveling mechanism capable of traveling along the guide rail; the cutter head is positioned at the lower part of the rack, the middle part of the cutter head penetrates through the rotating shaft, one end of the rotating shaft is connected with the rack, the other end of the rotating shaft is connected with a cutting motor arranged on the rack, and the cutting motor drives the cutter head to rotate through the rotating shaft; sponge blocks with the isolating agent are symmetrically arranged on two sides of the cutter head, and the cutter head is tightly attached to the inner sides of the two sponge blocks.
2. The concrete pavement wet slitting device according to claim 1, wherein the release agent is a concrete release agent or engine oil.
3. The wet slitting device for the concrete pavement according to claim 1, wherein the outer side of the sponge block is fixed on a mounting frame, the mounting frame is connected with an adjusting screw rod, and the adjusting screw rod is mounted on the rack through a nut; vertical bar-shaped holes are formed in the rack, the end parts of the adjusting screws are inserted into the bar-shaped holes, and the adjusting screws can move up and down in the bar-shaped holes, so that the depth of the sponge block which is bitten by the adjusting cutter head is adjusted.
4. A concrete pavement wet slitting device as set forth in claim 1 wherein said cutterhead is shuttle shaped in cross-section.
5. The wet slitting device for concrete pavement according to claim 1, wherein the traveling mechanism includes a traveling wheel and a traveling motor connected to the traveling wheel, the traveling wheel is adapted to the guide rail, and the traveling motor drives the traveling wheel to travel along the length of the guide rail.
6. The concrete pavement wet slitting device according to claim 1, wherein said support structure includes horizontal beams, rollers, support posts, and height adjustment posts; two groups of rollers are arranged at two ends of the horizontal beam respectively; the bottom of the support column is fixed in the middle of the horizontal beam, the support column is hollow inside, the height adjusting column is installed in the support column, and the guide rail is fixed at the top of the height adjusting column.
7. The wet slitting device for concrete pavement according to claim 6, wherein a rack is installed on one side of the height adjusting post, the rack is engaged with a gear, a wheel shaft of the gear is connected with a height adjusting motor, and when the height adjusting motor drives the gear to rotate, the rack drives the height adjusting post to be raised or lowered in the bracket post.
8. The concrete pavement wet slitting device according to claim 1, wherein a release agent storage tank for storing release agent is additionally arranged on the concrete wet slitting machine, and the bottom of the release agent storage tank is communicated with the sponge block through a release agent conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434788.7A CN113186788A (en) | 2021-04-22 | 2021-04-22 | Wet joint cutting device of concrete road surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434788.7A CN113186788A (en) | 2021-04-22 | 2021-04-22 | Wet joint cutting device of concrete road surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113186788A true CN113186788A (en) | 2021-07-30 |
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ID=76978100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110434788.7A Pending CN113186788A (en) | 2021-04-22 | 2021-04-22 | Wet joint cutting device of concrete road surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113186788A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019693A (en) * | 2001-07-10 | 2003-01-21 | Oyane Riki Mfg Co Ltd | Circle cutter |
| US20030192524A1 (en) * | 2002-04-10 | 2003-10-16 | Briganti Sam F. | Blade for cutting concrete |
| US20050147756A1 (en) * | 2003-12-10 | 2005-07-07 | High Steven L. | Chemical induced pre-stressed zones in concrete |
| JP2006233563A (en) * | 2005-02-24 | 2006-09-07 | Nippo Corporation:Kk | Joint cutting device and joint construction method using the same |
| CN204000559U (en) * | 2014-08-11 | 2014-12-10 | 淄博安茂福国际贸易有限公司 | Concrete joint-cutting device |
| CN106436546A (en) * | 2016-12-01 | 2017-02-22 | 山东大学 | Pervious concrete cutter and using method thereof |
| CN106930778A (en) * | 2017-03-17 | 2017-07-07 | 浙江省水利水电勘测设计院 | A kind of water-conveyance tunnel concrete lining induces crack structure and method to set up |
| CN107642025A (en) * | 2017-09-28 | 2018-01-30 | 新疆北方建设集团有限公司 | The section concrete of channel half is wet to cut machine |
| CN207109536U (en) * | 2017-06-30 | 2018-03-16 | 山东华宇工学院 | Concrete road surface expansion joint cutting sheet |
| CN108081480A (en) * | 2018-01-24 | 2018-05-29 | 枣庄市博源人造石有限公司 | A kind of artificial quartz stone plate cutting equipment |
| CN111395132A (en) * | 2019-02-14 | 2020-07-10 | 陕西华中机械有限公司 | Expansion joint cutting mechanism, concrete paving mechanism and concrete paver |
| CN112144416A (en) * | 2020-10-12 | 2020-12-29 | 翟文静 | Joint cutter for bridge construction |
-
2021
- 2021-04-22 CN CN202110434788.7A patent/CN113186788A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019693A (en) * | 2001-07-10 | 2003-01-21 | Oyane Riki Mfg Co Ltd | Circle cutter |
| US20030192524A1 (en) * | 2002-04-10 | 2003-10-16 | Briganti Sam F. | Blade for cutting concrete |
| US20050147756A1 (en) * | 2003-12-10 | 2005-07-07 | High Steven L. | Chemical induced pre-stressed zones in concrete |
| JP2006233563A (en) * | 2005-02-24 | 2006-09-07 | Nippo Corporation:Kk | Joint cutting device and joint construction method using the same |
| CN204000559U (en) * | 2014-08-11 | 2014-12-10 | 淄博安茂福国际贸易有限公司 | Concrete joint-cutting device |
| CN106436546A (en) * | 2016-12-01 | 2017-02-22 | 山东大学 | Pervious concrete cutter and using method thereof |
| CN106930778A (en) * | 2017-03-17 | 2017-07-07 | 浙江省水利水电勘测设计院 | A kind of water-conveyance tunnel concrete lining induces crack structure and method to set up |
| CN207109536U (en) * | 2017-06-30 | 2018-03-16 | 山东华宇工学院 | Concrete road surface expansion joint cutting sheet |
| CN107642025A (en) * | 2017-09-28 | 2018-01-30 | 新疆北方建设集团有限公司 | The section concrete of channel half is wet to cut machine |
| CN108081480A (en) * | 2018-01-24 | 2018-05-29 | 枣庄市博源人造石有限公司 | A kind of artificial quartz stone plate cutting equipment |
| CN111395132A (en) * | 2019-02-14 | 2020-07-10 | 陕西华中机械有限公司 | Expansion joint cutting mechanism, concrete paving mechanism and concrete paver |
| CN112144416A (en) * | 2020-10-12 | 2020-12-29 | 翟文静 | Joint cutter for bridge construction |
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