CN114908641B - Road roller and road construction process thereof - Google Patents
Road roller and road construction process thereof Download PDFInfo
- Publication number
- CN114908641B CN114908641B CN202210695856.XA CN202210695856A CN114908641B CN 114908641 B CN114908641 B CN 114908641B CN 202210695856 A CN202210695856 A CN 202210695856A CN 114908641 B CN114908641 B CN 114908641B
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- driving
- sliding column
- plate
- driving disc
- rolling cylinder
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- 238000010276 construction Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 68
- 238000007790 scraping Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000001960 triggered effect Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000013459 approach Methods 0.000 claims description 7
- 239000011384 asphalt concrete Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 11
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 11
- 241001330002 Bambuseae Species 0.000 abstract description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 11
- 239000011425 bamboo Substances 0.000 abstract description 11
- 238000001125 extrusion Methods 0.000 abstract description 11
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/238—Wetting, cleaning or heating rolling elements, e.g. oiling, wiping, scraping
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The application relates to a road roller, include: the rolling cylinder is rotationally connected between the two side plates; the lever mechanism is provided with a detection part which is contacted with the outer surface of the rolling cylinder at one end and a controlled part which is linked with the detection part at the other end; the scraping plate is rotationally connected between the side plates at two sides and is in a state of abutting against the outer surface of the rolling cylinder along the rotation direction; the reset piece always has a trend of forcing the scraping plate to rotate so as to separate the scraping plate from the outer surface of the rolling cylinder; the delay locking mechanism is used for keeping the scraping plate in a state of abutting against the rolling cylinder; when the detection part of the lever mechanism is triggered, the controlled part of the lever mechanism drives the scraping plate to rotate and abut against the outer surface of the rolling cylinder, and at the moment, the time delay locking mechanism locks the scraping plate; when the delay lock. The utility model discloses make the scraper blade can only laminate in the roll extrusion section of thick bamboo in order to clear up the operation when need clear up the roll extrusion section of thick bamboo.
Description
Technical Field
The application relates to the field of road construction equipment, in particular to a road roller and a road construction process thereof.
Background
The road roller is also called as a soil compactor, and is a device for repairing road. The road roller belongs to the category of road equipment in engineering machinery, is widely used for filling compaction operation of large-scale construction Cheng Xiang such as high-grade highways, railways, airport runways, dams, stadiums and the like, and can be used for rolling sandy, semi-viscous and viscous soil, roadbed stabilized soil and asphalt concrete pavement layers. The roller is suitable for various compaction operations under the gravity action of the machine, so that the rolled layer is permanently deformed and compacted.
In practical use, the material of the compacted layer is often attached to the rolling drum of the road roller, so that the material attached to the rolling drum is pressed again on the corresponding compacted layer in the rolling process, and the constructed road is affected to reduce the quality of the road.
The usual way today is to scrape off the attached material on the roll cylinder with a scraper, but the scraper is very vulnerable to wear and has a short life due to the long time it needs to be kept in abutment with the roll cylinder.
Disclosure of Invention
In order to enable the scraping plate to be attached to the rolling cylinder to carry out cleaning operation when the rolling cylinder needs to be cleaned, the application provides a road roller and a road construction process of the road roller.
In a first aspect, the present application provides a road roller that adopts the following technical scheme:
a roller, comprising:
the rolling cylinder is rotationally connected between the two side plates;
the lever mechanism is provided with a detection part which is contacted with the outer surface of the rolling cylinder at one end and a controlled part which is linked with the detection part at the other end;
the scraping plate is rotationally connected between the side plates at two sides and is in a state of abutting against the outer surface of the rolling cylinder along the rotation direction;
the reset piece always has a trend of forcing the scraping plate to rotate so as to separate the scraping plate from the outer surface of the rolling cylinder;
the delay locking mechanism is used for keeping the scraping plate in a state of abutting against the rolling cylinder;
when the detection part of the lever mechanism is triggered, the controlled part of the lever mechanism drives the scraping plate to rotate and abut against the outer surface of the rolling cylinder, and at the moment, the time delay locking mechanism locks the scraping plate; when the delay locking mechanism unlocks the scraping plate, the reset piece drives the scraping plate to be separated from the outer surface of the rolling cylinder.
Through adopting above-mentioned technical scheme, through lever mechanism's effect, can detect the material that has the caking of adhesion on the roll extrusion section of thick bamboo, when there is, lever mechanism can be forced to take place to rotate and push down the scraper blade so that the scraper blade laminating in the surface of roll extrusion section of thick bamboo to after the time delay through delay locking mechanical system, the scraper blade lifts up again, so that the attachment that is detected by lever mechanism's detection portion can be scraped by the scraper blade, also can not be long-time with the scraper blade laminating on the surface of roll extrusion section of thick bamboo simultaneously.
Preferably, a fixed bracket is connected between the side plates at two sides, the lever mechanism comprises a rotating rod with a middle part rotatably connected to the fixed bracket, one end of the rotating rod is fixedly connected with a first extension piece extending towards the rolling cylinder to serve as a detection part of the lever mechanism, the other end of the rotating rod is connected with a second extension piece used for propping against the scraping plate to serve as a controlled part of the lever mechanism, and when the first extension piece is far away from the rolling cylinder, the second extension piece drives the scraping plate to rotate towards the direction close to the rolling cylinder.
Preferably, the first extension member is rotatably connected with an abutment roller, the axial direction of the abutment roller is parallel to the axial direction of the rolling cylinder, the abutment roller and the rolling cylinder are mutually attached, and the rotation directions of the abutment roller and the rolling cylinder are opposite.
Through adopting above-mentioned technical scheme, can reduce friction and the loss that receives when laminating with the roll extrusion section of thick bamboo through the setting of butt roller, the butt roller also can detect the length direction of roll extrusion section of thick bamboo simultaneously for the attached attachment in arbitrary position can all become the trigger that triggers the scraper blade and push down.
Preferably, the delay locking mechanism comprises a sliding column and a delay disengaging assembly, the sliding column is penetrated and connected to the side plate in a sliding way, the end part of the sliding column is provided with a hemispherical end part, the sliding column is driven by an elastic assembly to always extend outwards from the side plate so as to protrude out of the hemispherical end part, and one side of the scraping plate is provided with a guide surface for abutting against the sliding column and driving the sliding column to retract;
the side wall of the scraper is provided with a limit hole through which the hemispherical end part of the sliding column passes, wherein when the scraper rotates to enable the sliding column to slide into the limit hole, the delay disengaging assembly forces the sliding column to be non-retractable and limited in the limit hole, and when the rolling cylinder rotates for a set angle, the delay disengaging assembly allows the sliding column to retract so as to disengage from the scraper.
Preferably, the delay disengaging assembly comprises a first driving disc and a second driving disc, wherein the first driving disc is in linkage with the rolling cylinder, the second driving disc is coaxially arranged with the first driving disc, the second driving disc is positioned between the first driving disc and the rolling cylinder, one side of the first driving disc, which is far away from the second driving disc, is provided with a first elastic piece for axially driving the first driving disc to approach the second driving disc, and a second elastic piece for forcing the first driving disc to be far away from the second driving disc is arranged between the first driving disc and the second driving disc;
the difference between the maximum extension amount of the sliding column and the depth of the limiting hole is larger than or equal to the maximum interval amount of the first driving disk and the second driving disk, when the lever mechanism drives the scraping plate to force the sliding column to retract into the side plate, the sliding column is abutted against the second driving disk, the first elastic piece and the second elastic piece are extruded, and when the end part of the sliding column penetrates through the limiting hole, the first elastic piece is kept compressed, and the first driving disk and the second driving disk are mutually close and kept in linkage;
the second driving disc is provided with a back-off hole for one end of the sliding column to pass through, after the second driving disc rotates for a certain angle, the axis of the back-off hole coincides with the axis of the sliding column, and the scraping plate drives the sliding column to back into the back-off hole under the reset of the reset piece, so that the scraping plate is separated from the sliding column.
Through adopting above-mentioned technical scheme, when the scraper blade does not butt with the roll extrusion section of thick bamboo, first driving disk and second driving disk can break away from each other and the second driving disk can not link with first driving disk. When the scraping plate is abutted with the rolling cylinder, the first driving disc and the second driving disc are close to each other, the second driving disc and the first driving disc rotate simultaneously until the first driving disc and the second driving disc rotate to the same axis as the retraction hole and the sliding column, the sliding column is retracted into the sliding column under the action of the scraping plate and the hemispherical end part, the scraping plate is reset under the action of the reset piece, the sliding column is ejected again, and the first driving disc and the second driving disc are separated from each other. Thus, this structure makes it possible to limit the retraction time of the sliding column by a purely mechanical structure.
Preferably, the side plate is provided with a cavity for installing the first driving disc and the second driving disc, the two opposite side walls of the cavity are rotationally connected with a transmission shaft which axially penetrates through the first driving disc and the second driving disc, the transmission shaft comprises an optical axis section and a spline section which are axially integrated into one piece, the outer diameter of the spline section is the same as that of the optical axis section, the second driving disc is sleeved and rotationally connected onto the optical axis section, the first driving disc is in key connection with the spline section, and the first driving disc can slide on the spline section along the axial direction of the transmission shaft.
Through adopting above-mentioned technical scheme, the setting mode of spline makes not only can rotate with the transmission shaft is synchronous for first driving disk, also can carry out the slip of certain degree along the spline section at the transmission shaft.
Preferably, the second driving plate has a circumferential reset member for forcing the second driving plate to be reset to an initial state, in the initial state, an axial direction of the retraction hole is staggered with an axial direction of the sliding column, after the first driving plate and the second driving plate are linked to a state that the retraction hole coincides with an axial direction of the sliding column, the scraper is reset and the sliding column is disengaged from the retraction hole, the second elastic member forces the first driving plate and the second driving plate to be separated, and the circumferential reset member forces the second driving plate to be pivoted to the initial state.
By adopting the technical scheme, after the scraping plate is separated from the rolling cylinder again, the second driving disc can be reset to the initial state under the action of the circumferential resetting piece, so that the repeated stroke of each scraping plate under the delay mechanism is also a set distance.
Preferably, one side of the second driving disk facing the first driving disk is provided with a plurality of clamping bulges, the first driving disk is provided with a clamping groove for the clamping bulges to correspondingly pass through, and when the second driving disk approaches the first driving disk, the clamping bulges pass through the clamping grooves.
In a second aspect, the present application provides a road construction process that adopts the following technical scheme:
the road construction process comprises the steps of filling a road surface layer by using asphalt concrete, and then compacting the road surface layer by using a road roller, wherein the road roller adopts the road roller.
To sum up, this application makes the scraper blade can just laminate in the roll extrusion section of thick bamboo in order to clear up the operation to need clear up the roll extrusion section of thick bamboo to after the time delay through delay locking mechanical system, the scraper blade lifts up again, so that the attachment that detects by lever mechanism's detection portion can be scraped by the scraper blade, also can not be long-time laminate the scraper blade on the surface of roll extrusion section of thick bamboo simultaneously.
Drawings
Fig. 1 is a schematic structural view of a road roller.
Fig. 2 is a schematic structural view of the drum device.
Fig. 3 is a schematic cross-sectional view of the time delay release mechanism.
Fig. 4 is a schematic view of the configuration of the cooperation of the scraper with the sliding column.
Fig. 5 is a schematic view of the structure of the blade side.
Fig. 6 is a schematic structural view of the second drive disk.
Fig. 7 is a schematic structural view of the first drive disk.
FIG. 8 is a schematic view of the installation of a circumferential return element in one embodiment.
Reference numerals illustrate: 1. a roller device; 2. a rolling cylinder; 3. a side plate; 4. a lever mechanism; 5. a scraper; 6. a reset member; 41. a rotating lever; 42. a first elongate member; 43. a second elongate member; 44. a fixed bracket; 45. a contact roller; 8. a cavity; 71. a sliding column; 72. a time delay disengaging assembly; 51. a guide surface; 52. a limiting hole; 711. a connecting plate; 81. a spring groove; 73. an elastic component; 712. an annular cover plate; 721. a first drive plate; 722. a second drive plate; 723. a first elastic member; 724. a second elastic member; 74. a transmission shaft; 741. an optical axis section; 742. a spline section; 725. a back-off hole; 726. the clamping bulge; 727. a clamping groove; 728. and a circumferential reset member.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-8.
The embodiment of the application discloses a road roller. Referring to fig. 1 and 2, the road roller includes a roller device 1 at the front of the road roller, the roller device 1 including a roller 2 for rolling the road surface and side plates 3 at both ends of the roller 2, the roller 2 being rotatably connected between the side plates 3 at both sides. A lever mechanism 4, a scraping plate 5, a reset piece 6 and a time delay locking mechanism are also arranged between the two side plates 3. Wherein the scraper 5 is rotatably connected between the two side plates 3, and one end of the scraper 5 can be contacted with the outer surface of the rolling cylinder 2 through rotation, specifically, the extending direction of the scraper 5 to one end is opposite to the rotating direction of the rolling cylinder 2. The lever mechanism 4 has a detecting portion for detecting the outer surface of the roll cylinder 2 and a controlled portion for pressing down the scraper 5, and when the outer surface of the roll cylinder 2 has the adhering matter, the adhering matter is detected by the detecting portion of the lever mechanism 4, and the scraper 5 is pressed down under the leverage and the scraper 5 is abutted against the outer surface of the roll cylinder 2. At this time, the scraper 5 maintains the abutting effect with the rolling cylinder 2 by the time delay locking mechanism, and after a period of time, the scraper 5 is released by the time delay locking mechanism, and reversely rotates and is separated from the rolling cylinder 2 by the reset member 6. The rolling cylinder 2 needs to pass through the detection part of the lever mechanism 4 in the travelling direction and then pass through the projection area where the scraper 5 is located.
The lever mechanism 4 comprises a rotating rod 41, a first extension piece 42 and a second extension piece 43 which are respectively connected to two ends of the rotating rod 41, a fixed bracket 44 is connected to the side plates 3 on two sides, the middle part of the rotating rod 41 is rotationally connected to the fixed bracket 44, the first extension piece 42 connected to one end of the rotating rod 41 extends to the rolling cylinder 2 to serve as a detection part of the lever mechanism 4 only, the second extension piece 43 connected to the other end of the rotating rod 41 also extends to the rolling cylinder 2 to serve as a controlled part of the lever mechanism 4, and the second extension piece 43 extends to the upper part of the scraping plate 5 to be in butt joint with one end of the scraping plate 5. Wherein, the first extension piece 42 on both sides is rotatably connected with an abutting roller 45, the axial direction of the abutting roller 45 is parallel to the axial direction of the rolling cylinder 2, the abutting roller 45 and the rolling cylinder 2 are mutually attached, and the rotation directions of the abutting roller 45 and the rolling cylinder 2 are opposite.
The second extension piece 43 is abutted against the upper surface of the scraper 5, and the scraper 5 always has a tendency to lift upwards under the action of the reset piece 6 so as to keep the end of the scraper 5 away from the rolling cylinder 2, so that the second extension piece 43 is lifted upwards under the action of the reset piece 6, and drives the first extension piece 42 to always have a tendency to approach the rolling cylinder 2 under the action of the rotating rod 41, so that the abutting roller 45 has an abutting effect with the outer surface of the rolling cylinder 2. Here, the reset member 6 may be a tension spring, and one end of the tension spring abuts against the upper surface of the blade 5 so that the blade 5 always has a tendency to rotate upward.
Referring to fig. 3, 4 and 5, one side of the side plate 3 has a cavity 8 for mounting a delay lock mechanism, the delay lock mechanism includes a sliding column 71 and a delay disengaging assembly 72, the sliding column 71 is connected to the side plate 3, and the end of the sliding column is hemispherical, and the sliding column 71 always has a tendency to extend toward the space between the side plates 3 under the driving of an elastic assembly 73. One side of the scraper 5 is abutted against the side plate 3 on which the sliding column 71 is mounted, a guide surface 51 for abutting against the sliding column 71 and driving the sliding column 71 to retract is arranged on one side of the scraper 5, when the scraper 5 rotates in a direction approaching to the rolling cylinder 2, the scraper 5 abuts against the sliding column 71 to force the sliding column 71 to retract into the side plate 3, a limit hole 52 for penetrating the hemispherical end of the sliding column 71 is formed in the side wall of the scraper 5, and when the scraper 5 rotates until the scraper 5 abuts against the outer surface of the rolling cylinder 2, the limit hole 52 is opposite to the sliding column 71 to enable the sliding column 71 to penetrate into the limit hole 52.
As a specific implementation manner, the connection plate 711 is disposed in the circumferential direction of the sliding column 71, the spring groove 81 through which the connection plate 711 passes is disposed on the side plate 3 and on the cavity wall of the cavity 8, the elastic component 73 is a compression spring and is sleeved on the sliding column 71 and is located in the spring groove 81, the annular cover plate 712 for preventing the sliding column 71 from separating is disposed on the side plate 3 and on the cavity wall of the cavity 8, and two ends of the compression spring are respectively abutted to the annular cover plate 712 and the connection plate 711, so that the sliding column 71 always has a tendency of extending out of the side plate 3.
The time delay disengaging assembly 72 includes a first driving plate 721 coupled to the rolling cylinder 2 and a second driving plate 722 coaxially disposed with the first driving plate 721, the second driving plate 722 being disposed between the first driving plate 721 and the rolling cylinder 2, a side of the first driving plate 721 away from the second driving plate 722 having a first elastic member 723 for axially driving the first driving plate 721 toward the second driving plate 722, and a second elastic member 724 for forcing the first driving plate 721 away from the second driving plate 722 being disposed between the first driving plate 721 and the second driving plate 722. The first elastic member 723 and the second elastic member 724 are compression springs, two ends of the first elastic member 723 are respectively abutted against the first driving disc 721 and the cavity wall of the cavity 8, and two ends of the second elastic member 724 are respectively abutted against the first driving disc 721 and the second driving disc 722.
Here, the two opposite side walls of the cavity 8 are rotatably connected with a transmission shaft 74 that axially penetrates through the first driving disk 721 and the second driving disk 722, the transmission shaft 74 includes an optical axis section 741 and a spline section 742 that are axially integrally formed, the outer diameter of the spline section 742 is the same as that of the optical axis section 741, the second driving disk 722 is sleeved and rotatably connected to the optical axis section 741, the first driving disk 721 is connected to the spline section 742 in a key manner, and the first driving disk 721 can slide on the spline section 742 along the axial direction of the transmission shaft 74. Thus, the first drive plate 721 is slidable only within the range of the spline section 742, the second drive plate 722 is slidable in the direction of the entire drive shaft 74, and the corresponding characteristics are that the first drive plate 721 rotates synchronously with the drive shaft 74, but the second drive plate 722 rotates relative to the drive shaft 74. In one embodiment, the transmission shaft 74 is linked with the rotation shaft to which the roll cylinder 2 is attached by a timing belt transmission. At this time, the first elastic member 724 may interfere with the timing belt, and a lifting block may be added on the wall of the cavity 8 to avoid the first elastic member 724 contacting with the timing belt to affect the movement of the timing belt.
When the lever mechanism 4 drives the scraper 5 to force the sliding column 71 to retract into the side plate 3, the other end of the sliding column 71 will abut against the second driving plate 722, during the retraction of the sliding column 71, the second driving plate 722 will approach the first driving plate 721 and abut against the first driving plate 721, and when the sliding column 71 is completely retracted into the side plate 3, the first driving plate 721 and the second driving plate 722 will also displace synchronously, i.e. the first elastic member 723 will be compressed to compress to a certain extent for the first driving plate 721 to move. Thereafter, when the slide post 71 is inserted into the limiting hole 52, the first elastic member 723 may be restored to an original state. However, in these conditions, the second resilient member 724 is always kept in compression to keep the first drive disc 721 and the second drive disc 722 in close proximity to each other. Therefore, when the sliding post 71 is fully extended from the side plate 3, the extending amount of the sliding post 71 is larger than the hole depth of the limiting hole 52, so that when the sliding post 71 is fully disengaged, there is enough redundancy to keep the first driving plate 721 and the second driving plate 722 away from each other under the action of the second elastic member 724.
When the sliding post 71 is inserted into the limiting hole 52, although the end of the sliding post 71 has a hemispherical surface for guiding, so that the scraper 5 has a tendency to retract the sliding post 71 into the side plate 3 under the action of the restoring member 6, the retraction force of this portion is counteracted by the action of the first elastic member 723, so that the sliding post 71 is not retracted into the side plate 3 under the action of the restoring member 6. Further, since the pressing down of the squeegee 5 is performed by the lever mechanism 4 and the lifting up and resetting of the squeegee 5 is performed by the resetting member 6, the elastic force of the first elastic member 723 can be easily overcome during the pressing down of the squeegee 5.
On this basis, a retraction hole 725 is formed in the second driving plate 722 for allowing one end of the sliding column 71 to pass through, after the second driving plate 722 rotates by a certain angle, the axis of the retraction hole 725 coincides with the axis of the sliding column 71, at this time, under the action of the restoring force provided by the restoring member 6 and the cooperation between the hemispherical end and the scraper 5, the sliding column 71 will retract into the retraction hole 725, at this time, the scraper 5 will return to the original state, the sliding column 71 will be ejected outwards again under the action of the elastic component 73, at this time, both the first driving plate 721 and the second driving plate 722 will return to the original state under the action of the first elastic member 723 and the second elastic member 724. Therefore, in this case, the protruding amount of the sliding post 71 needs to be greater than the length of the hemispherical end, and the length of the excess protruding amount needs to be at least equal to or greater than the maximum distance between the first driving plate 721 and the second driving plate 722, that is, when the sliding post 71 protrudes into the limiting hole 52, the first driving plate 721 and the second driving plate 722 are closely attached, and the first driving plate 721 and the second driving plate 722 can relatively rotate under the action of friction force. Therefore, when the scraper 5 is locked by the sliding post 71, the second driving plate 722 can rotate along with the rotation of the rolling cylinder 2, and after the rolling cylinder rotates by a certain angle so that the retraction hole 725 is opposite to the sliding post 71, the scraper 5 can be reset.
Referring to fig. 6 and 7, in one embodiment, a side of the second driving disc 722 facing the first driving disc 721 is provided with a plurality of clamping protrusions 726, the first driving disc 721 is provided with clamping grooves 727 through which the clamping protrusions 726 correspondingly pass, and when the second driving disc 722 approaches the first driving disc 721, the clamping protrusions 726 pass through the clamping grooves 727, so that the first driving disc 721 and the second driving disc 722 realize circumferential synchronous rotation. This allows for a certain clearance between the first drive disc 721 and the second drive disc 722, which also allows for a synchronous rotation of the first drive disc 721 and the second drive disc 722.
Referring to fig. 8, on the basis of this, the second driving plate 722 has a circumferential reset member 728 that forces the second driving plate 722 to be reset to an initial state in which the axial direction of the retraction hole 725 is offset from the axial direction of the sliding post 71, and after the first driving plate 721 and the second driving plate 722 are interlocked to a state in which the retraction hole 725 coincides with the axial direction of the sliding post 71, the squeegee 5 is reset and the sliding post 71 is disengaged from the retraction hole 725, the second elastic member 724 forces the first driving plate 721 and the second driving plate 722 to be separated, and the circumferential reset member 728 forces the second driving plate 722 to be pivoted to the initial state. The circumferential restoring member 728 may be implemented in the form of a tension spring, one end of which is connected to the wall of the cavity 8 in the side plate 3, and the other end of which is connected to the outer edge of the second driving plate 722, and in the initial state, the tension spring is always in a tensioned state to keep the second driving plate 722 in a state relatively fixed to the side plate 3.
Based on this, the application still discloses a road construction technology, uses asphalt concrete to fill the road surface layer after, carries out compaction operation to the road surface layer through the road roller, and wherein, the road roller adopts foretell road roller.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. A roller, comprising:
the rolling cylinder (2) is rotationally connected between the two side plates (3);
the lever mechanism (4), one end of the lever mechanism (4) is provided with a detection part contacted with the outer surface of the rolling cylinder (2), and the other end is provided with a controlled part linked with the detection part;
the scraping plates (5) are rotatably connected between the side plates (3) at two sides, and the scraping plates (5) are in a state of abutting against the outer surface of the rolling cylinder (2) along the rotation direction;
a reset piece (6) which always has a trend of forcing the scraping plate (5) to rotate so as to separate the scraping plate (5) from the outer surface of the rolling barrel (2);
a delay locking mechanism for keeping the scraper (5) in a state of abutting against the rolling cylinder (2);
when the detection part of the lever mechanism (4) is triggered, the controlled part of the lever mechanism (4) drives the scraping plate (5) to rotate and abut against the outer surface of the rolling cylinder (2), and at the moment, the time delay locking mechanism locks the scraping plate (5); when the delay locking mechanism unlocks the scraping plate (5), the reset piece (6) drives the scraping plate (5) to be separated from the outer surface of the rolling cylinder (2);
the time delay locking mechanism comprises a sliding column (71) and a time delay disengaging assembly (72), wherein the sliding column (71) is arranged in a penetrating mode and is connected to the side plate (3) in a sliding mode, one end of the sliding column (71) is provided with a hemispherical end portion, the sliding column (71) is driven by an elastic assembly (73) to always extend outwards from the side plate (3) to protrude out of the hemispherical end portion, and one side of the scraping plate (5) is provided with a guide surface (51) which is used for being in butt joint with the sliding column (71) and driving the sliding column (71) to retract;
the side wall of the scraper (5) is provided with a limit hole (52) for penetrating the hemispherical end part of the sliding column (71), when the scraper (5) rotates to enable the sliding column (71) to slide into the limit hole (52), the delay disengaging assembly (72) forces the sliding column (71) to be in an unretractable limit in the limit hole (52), and after the rolling cylinder (2) rotates for a set angle, the delay disengaging assembly (72) allows the sliding column (71) to retract so as to enable the sliding column (71) to be disengaged from the scraper (5);
the time delay disengaging assembly (72) comprises a first driving disc (721) and a second driving disc (722), wherein the first driving disc (721) is in linkage with the rolling cylinder (2), the second driving disc (722) is coaxially arranged with the first driving disc (721), the second driving disc (722) is positioned between the first driving disc (721) and the rolling cylinder (2), one side of the first driving disc (721) away from the second driving disc (722) is provided with a first elastic element (723) for axially driving the first driving disc (721) to approach the second driving disc (722), and a second elastic element (724) for forcing the first driving disc (721) to be away from the second driving disc (722) is arranged between the first driving disc (721) and the second driving disc (722);
the difference between the maximum protruding amount of the sliding column (71) and the depth of the limiting hole (52) is larger than or equal to the maximum interval between the first driving disc (721) and the second driving disc (722), when the lever mechanism (4) drives the scraping plate (5) to force the sliding column (71) to retract into the side plate (3), the sliding column (71) is abutted against the second driving disc (722), the first elastic piece (723) and the second elastic piece (724) are both extruded, and when the end part of the sliding column (71) is penetrated into the limiting hole (52), the first elastic piece (723) is kept compressed and the first driving disc (721) and the second driving disc (722) are mutually close to each other and keep linkage;
the second driving disc (722) is provided with a back-off hole (725) used for enabling one end of the sliding column (71) to penetrate through, after the second driving disc (722) rotates for a certain angle, the axis of the back-off hole (725) coincides with the axis of the sliding column (71), and the scraper (5) drives the sliding column (71) to back into the back-off hole (725) under the reset of the reset piece (6), so that the scraper (5) is separated from the sliding column (71).
2. The roller of claim 1, wherein: the utility model provides a rolling mill, including curb plate (3) are connected with fixed bolster (44), lever mechanism (4) are including middle part swivelling joint dwang (41) on fixed bolster (44), the one end fixedly connected with of dwang (41) is to first extension piece (42) of rolling mill (2) extension in order to regard as the detection portion of lever mechanism (4), the other end of dwang (41) is connected with second extension piece (43) that are used for supporting scraper blade (5) in order to regard as the controlled portion of lever mechanism (4), works as first extension piece (42) are to keeping away from when the direction of rolling mill (2) is kept away from, second extension piece (43) drive scraper blade (5) are to the direction rotation that is close to rolling mill (2).
3. The roller of claim 2, wherein: the first extension piece (42) is rotatably connected with an abutting roller (45), the axial direction of the abutting roller (45) is parallel to the axial direction of the rolling cylinder (2), the abutting roller (45) and the rolling cylinder (2) are mutually attached, and the rotating directions of the abutting roller (45) and the rolling cylinder (2) are opposite.
4. The roller of claim 1, wherein: the side plate (3) is provided with a cavity (8) for installing a first driving plate (721) and a second driving plate (722), two opposite side walls of the cavity (8) are rotationally connected with a transmission shaft (74) which axially penetrates through the first driving plate (721) and the second driving plate (722), the transmission shaft (74) comprises an optical axis section (741) and a spline section (742) which are axially integrated, the outer diameter of the spline section (742) is the same as that of the optical axis section (741), the second driving plate (722) is sleeved and rotationally connected to the optical axis section (741), the first driving plate (721) is connected to the spline section (742) in a key way, and the first driving plate (721) can slide on the spline section (742) along the axial direction of the transmission shaft (74).
5. The roller of claim 4, wherein: the second driving plate (722) is provided with a circumferential resetting piece (728) for forcing the second driving plate (722) to be reset to an initial state, in the initial state, the axial direction of the retraction hole (725) is wrong with the axial line of the sliding column (71), after the first driving plate (721) and the second driving plate (722) are linked to a state that the retraction hole (725) coincides with the axial line of the sliding column (71), the scraping plate (5) is reset and the sliding column (71) is disengaged from the retraction hole (725), the second elastic piece (724) forces the first driving plate (721) and the second driving plate (722) to be separated, and the circumferential resetting piece (728) forces the second driving plate (722) to be pivoted to the initial state.
6. The roller of claim 4, wherein: the second driving disc (722) is provided with a plurality of clamping protrusions (726) towards one side of the first driving disc (721), the first driving disc (721) is provided with clamping grooves (727) for the clamping protrusions (726) to correspondingly penetrate through, and when the second driving disc (722) approaches the first driving disc (721), the clamping protrusions (726) penetrate through the clamping grooves (727).
7. The road construction process is characterized in that: compacting the pavement layer by means of a roller after filling the pavement layer with asphalt concrete, wherein the roller is according to any one of claims 1-6.
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| CN202210695856.XA CN114908641B (en) | 2022-06-20 | 2022-06-20 | Road roller and road construction process thereof |
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| CN202210695856.XA CN114908641B (en) | 2022-06-20 | 2022-06-20 | Road roller and road construction process thereof |
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| CN114908641B true CN114908641B (en) | 2024-03-29 |
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| CN117804817B (en) * | 2024-03-01 | 2024-05-17 | 河南黄河新材料科技有限公司 | Automatic sampling device for conveying line |
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| CN111809482A (en) * | 2020-08-03 | 2020-10-23 | 曹浩 | Cleaning device for compression roller of road roller |
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| JPH08115029A (en) * | 1994-10-17 | 1996-05-07 | Fuji Xerox Co Ltd | Cleaning device |
| JPH1112977A (en) * | 1997-06-25 | 1999-01-19 | Dr Seisakusho:Kk | Doctor device with function to detect sticking of foreign material |
| WO2012008359A1 (en) * | 2010-07-14 | 2012-01-19 | 日立建機株式会社 | Compaction rolling vehicle |
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