WO2013046821A1 - 道路舗装機械の敷き均し装置 - Google Patents

道路舗装機械の敷き均し装置 Download PDF

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Publication number
WO2013046821A1
WO2013046821A1 PCT/JP2012/065472 JP2012065472W WO2013046821A1 WO 2013046821 A1 WO2013046821 A1 WO 2013046821A1 JP 2012065472 W JP2012065472 W JP 2012065472W WO 2013046821 A1 WO2013046821 A1 WO 2013046821A1
Authority
WO
WIPO (PCT)
Prior art keywords
screed
pair
screeds
telescoping
main screed
Prior art date
Application number
PCT/JP2012/065472
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
聡 小林
伊藤　洋平
渡邊　哲也
文夫 後藤
Original Assignee
住友建機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 住友建機株式会社 filed Critical 住友建機株式会社
Priority to CN201280047521.1A priority Critical patent/CN103827394B/zh
Priority to US14/345,643 priority patent/US20140369751A1/en
Priority to EP12837073.1A priority patent/EP2762640B1/en
Publication of WO2013046821A1 publication Critical patent/WO2013046821A1/ja

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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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/4866—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
    • 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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the present invention relates to a leveling device for road pavement machines, and in particular, it is possible to appropriately perform minus crown pavement construction in a pavement construction width region where pavement construction with a minus crown was impossible.
  • the present invention relates to a leveling device for a road pavement machine that improves performance.
  • the road pavement machine 1 includes a hopper 3 that receives asphalt mixture from a dump or the like at a front portion of the machine body 2, and a conveyor bar feeder 4 for sending the asphalt mixture in the hopper 3 backward.
  • the asphalt mixture sent rearward by the conveyor bar feeder 4 falls to the roadbed, and is then sent by the screw spreader 5 provided behind the machine body 2 in the leveling width direction.
  • the asphalt mixture is spread on the roadbed by a screed device (laying leveling device) 7 connected to the machine body 2 by the screed arm 6 behind the screw spreader 5.
  • the screed device 7 is configured to be able to change the spread width, and at the rear of the main screed 8, first and second extendable screeds 9 having a width substantially equal to the width of the main screed 8. , 10 are arranged side by side in front and rear, and are housed within a width substantially equal to the width of the main screed 8 in the housed state of the first and second telescoping screeds 9, 10 shown in FIG. .
  • holes are provided in the support support portions 11 and 12 provided on both sides of the rear upper portion of the main screed 8, and the guide shaft 13 or 14 can be slid in the lateral direction in the holes. I support it.
  • both end portions of the guide shaft 13 or 14 are fixed to both ends of the support 15 or 16.
  • holes are provided at both ends of the support 15 or 16, and the guide shaft 17 or 18 is slidably supported in the holes, and both end portions of the guide shaft 17 or 18 are extended in the first and second directions. It is fixed to both ends of the screed 9 or 10.
  • a feed device such as a hydraulic cylinder (not shown) is provided, and the first telescoping screed 9 or the second telescoping screed 10 is spread from the rear position of the main screed 8 in the leveling width direction and in the opposite direction to each other, In the state where the first telescoping screed 9 and the second telescoping screed 10 shown in FIG. 4B are expanded to the maximum extent, the spread leveling range should be expanded to about three times the main screed width L (see Lmax). (See, for example, Patent Document 1).
  • FIGS. 5 (a) and 5 (b) there are those shown in FIGS. 5 (a) and 5 (b).
  • This prior art is a type of screed apparatus in which a pair of first and second telescoping screeds 9 and 10 having a width substantially equal to the width of the main screed 8 are arranged in front of and behind the main screed 8 as described above.
  • a crown adjustment mechanism (not shown) is attached to 7A to set a required crown amount.
  • FIG. 5A is a plan view
  • FIG. 5B is a rear view.
  • the crown amount is a value corresponding to the inclination angle ⁇ of the bottom surface of the screed with the center in the width direction (lateral direction in FIG. 5B) of the bottom surface of the screed.
  • the extension state of the first and second telescoping screeds 9 and 10 when the above problem occurs is described as a numerical example as follows. That is, the minimum pavement construction width (substantially the same as the main screed width L) of the screed device is, for example, 2.3 m, the maximum pavement construction width is 6 m, and the first and second telescoping screeds 9 and 10 are extended.
  • the first and second extendable screeds 9, 10 The lower surfaces near the inner ends 9 a and 10 a protrude downward from the lower surface of the main screed 8.
  • the first and second telescoping screeds 9 and 10 are formed to be substantially equal to the width of the main screed 8, the first telescoping screed 9 is disposed in front of the main screed 8.
  • the second telescoping screed 10 is a type of screed device 7 B disposed behind the main screed 8. Also in this type of screed device 7B, when the first and second telescoping screeds 9 and 10 are extended so that their inner ends 9a and 10a do not exceed the center line of the machine body, they are negative to the screed device.
  • the crown is applied, not only the second telescoping screed 10 disposed behind the main screed 8 but also the first telescoping screed 9 disposed in front of the main screed 8 is produced in the second prior art. A problem similar to the problem arises.
  • Patent Document 1 a type of screed device in which a pair of first and second telescoping screeds having a width substantially equal to the width of the main screed is provided in front of and behind the main screed. It is shown.
  • the first telescoping screed is disposed in front of the main screed out of the first and second telescoping screeds formed to be substantially equal to the width of the main screed.
  • the second telescoping screed is extended within the range where the inner ends of the first and second telescoping screeds do not exceed the machine body center line.
  • a minus crown is attached to the screed device, a problem similar to the problem that occurs in the second prior art occurs.
  • a main screed and a pair of telescoping screeds having a width substantially equal to the width of the main screed, the type in which the pair of telescoping screeds are arranged behind the main screed, and the pair of telescoping screeds are the main screeds.
  • the spread leveling device which is a type disposed in front of the main screed or a type in which one of the pair of telescoping screeds is divided into a front and a rear of the main screed, a minus crown
  • the invention according to claim 1 includes a main screed and a pair of telescoping screeds that are substantially equal in width to the main screed and extend in opposite directions.
  • the inner ends of the pair of telescoping screeds are extended within a range not exceeding the machine center line.
  • the screed plate within the required length range on each inner end side of the pair of telescoping screeds is set to a negative value for the crown amount.
  • the pull-up mechanism may be configured such that each of the above-mentioned requirements is that the lower surface portion of each of the telescoping screeds at a required length portion from each inner end of the pair of telescoping screeds is a hinge portion.
  • a leveling device for a road pavement machine that is a refraction vertical type that raises a screed plate in a length range at an angle.
  • the pulling mechanism is refracted up and down, and the lower surface of each telescoping screed is hinged to raise the screed plate of each required length range at an angle, thereby making the vicinity of each inner end of the pair of telescoping screeds It becomes possible to raise the lower surface above the lower surface of the main screed easily and surely.
  • the pulling mechanism can slide the screed plates in the required length ranges up and down from the inner ends of the pair of telescoping screeds at a required length portion.
  • a leveling device for a road pavement machine which is a parallel up-and-down type which slides and raises the screed plate of each required length range in parallel with the slide surface.
  • the pulling mechanism is parallel up and down, and the screed plate of each required length range is slid parallel to the slide surface and pulled up, so that the lower surface near the inner ends of the pair of telescoping screeds is the lower surface of the main screed. It is possible to raise it more easily and surely.
  • the invention according to claim 1 includes a main screed and a pair of telescoping screeds having a width substantially equal to the width of the main screed, and the pair of telescoping screeds disposed behind the main screed, the pair of screeds.
  • the spread leveling is either a type in which the expansion / contraction screed is arranged in front of the main screed or a type in which one and the other of the pair of expansion / contraction screeds are arranged separately in front and rear of the main screed.
  • the minus crown pavement construction can be properly performed in the pavement construction width region in which each inner end of the pair of stretchable screeds extends within a range not exceeding the machine center line, and the performance of the leveling apparatus There is an advantage that can be improved.
  • the lowering mechanism near the inner end of each of the pair of telescoping screeds is more reliable than the lower surface of the main screed because the pulling mechanism is a refraction vertical type. It is possible to easily achieve proper minus crown pavement construction in the pavement construction width region in which each inner end of the pair of stretchable screeds extends within a range not exceeding the machine center line. There are advantages.
  • the lowering mechanism in the vicinity of the inner ends of the pair of telescoping screeds is more reliable than the lower surface of the main screed. It is possible to easily achieve proper minus crown pavement construction in the pavement construction width region in which each inner end of the pair of stretchable screeds extends within a range not exceeding the machine center line. There are advantages.
  • the present invention comprises a main screed and a pair of telescoping screeds having a width substantially equal to the width of the main screed, the type in which the pair of telescoping screeds are disposed behind the main screed, and the pair of telescoping screeds In the spread leveling device of the type arranged in front of the main screed or the type of one of the pair of telescoping screeds and the type arranged separately in the front and rear of the main screed, minus
  • the main screed and the main screed A pair of telescoping screeds that are substantially equal in width and extend in opposite directions, and the pair of telescoping screeds are arranged behind the main screed.
  • the crown amount is set to be negative when the inner ends of the pair of telescoping screeds are extended within a range not exceeding the machine center line, the inner ends of the pair of telescoping screeds This is realized by providing a pulling mechanism for pulling up the screed plate in the required length range on the side according to the minus set amount of the crown amount.
  • a spread leveling device (screed device) 19 includes a pair of telescoping screeds 21 and 22 extending back and forth behind a main screed 20 and having the same width as the main screed 20 and extending in opposite directions. Are installed side by side.
  • each inner end 21a, 22a of a pair of expansion-contraction screeds 21 and 22 is expanded in the range which does not exceed a machine centerline.
  • the screed plates 21b and 22b within a required length range on the inner ends 21a and 22a side of the pair of extendable screeds 21 and 22 are pulled up according to the minus set amount of the crown amount.
  • a refracting pull-up mechanism is provided.
  • the refraction up-and-down type pulling mechanism is configured such that the lower surface portion of each of the telescoping screeds 21 and 22 at a required length portion from the inner ends 21a and 22a of each of the telescoping screeds 21 and 22 is a hinge part.
  • the screed plates 21b and 22b within a required length range are configured to be lifted at an angle as 23a and 23b.
  • a manual operation method and a telescopic position of each telescoping screed 21, 22 are automatically set by a limit switch or the like. And a method of automatically controlling an operation of raising the angle with an angle based on the detection result.
  • the lower surfaces near the inner ends of the pair of expandable screeds 21 and 22 are raised above the lower surface of the main screed 20.
  • the problem that the lower end in the vicinity of the inner ends 21a, 22a of the telescoping screeds 21, 22 disposed behind the main screed 20 is eliminated from the leveling surface of the main screed 20 is eliminated.
  • the inner ends 21a and 22a of the pair of telescoping screeds 21 and 22 are extended beyond the machine center line, the inner ends 21a and 22a of the telescoping screeds 21 and 22 are set even if the crown amount is set to be negative. Since the lower surface in the vicinity of 22a does not protrude below the lower surface of the main screed 20, the screed plates 21b and 22b within the required length range are lowered to a position where the entire telescoping screeds 21 and 22 become flat.
  • a pair of telescoping screeds 21 that extend substantially in the opposite direction with the same width as the main screed 20 behind the main screed 20.
  • the leveling device 19 of the type in which 22 is arranged side by side in the pavement construction width region where the inner ends 21a and 22a of the pair of telescoping screeds 21 and 22 extend within a range not exceeding the machine center line. The minus crown pavement construction can be properly performed, and the performance of the spread leveling device 19 can be improved.
  • the lower surface in the vicinity of the inner ends 21a, 22a of the pair of telescoping screeds 21, 22 can be surely raised above the lower surface of the main screed 20, and the pair of telescoping screeds 21, 22
  • Appropriate minus-crown pavement construction can be easily realized in the pavement construction width region in which the inner ends 21a, 22a of 22 extend within a range not exceeding the machine center line.
  • the pulling mechanism is configured in a parallel vertical manner.
  • the parallel up-and-down type pulling mechanism includes a pair of telescoping screeds 21 and 22, and screed plates 21 b and 22 b within a required length range on the inner ends 21 a and 22 a side.
  • the screed plates 21b and 22b within the required length range are slid in parallel with the slide surfaces 24a and 24b, respectively, and pulled up from the inner ends 21a and 22a. Yes.
  • the manual operation method, the expansion / contraction positions of the expansion / contraction screeds 21, 22 are limit switches, etc.
  • a method of automatically detecting and automatically controlling the up / down operation based on the detection result is applied.
  • the leveling device of the road pavement machine is configured such that the pulling mechanism is a parallel vertical type, and the screed plates 21b and 22b within a required length range are slid in parallel with the slide surfaces 24a and 24b, respectively, It becomes possible to raise the lower surface in the vicinity of the inner ends 21 a, 22 a of the telescoping screeds 21, 22 easily and surely above the lower surface of the main screed 20.
  • the pulling mechanism is a parallel vertical type, so that the lower surface in the vicinity of the inner ends 21a, 22a of the telescoping screeds 21, 22 is the main screed 20.
  • a type of spread leveling device in which a pair of stretchable screeds 21 and 22 are arranged in front of the main screed 20 and one stretchable as shown in FIG.
  • the screed 21 may be disposed in front of the main screed 20, and the other telescoping screed 22 may be applied to a type of leveling device disposed behind the main screed 20.
  • a refraction vertical or parallel vertical lifting mechanism is provided on the inner ends 21a and 22a of the pair of telescoping screeds 21 and 22, respectively.
  • Pavement leveling machine including asphalt finisher with and without emulsion spraying function that is essential to improve performance by making it possible to properly perform minus crown pavement construction in the pavement construction width area where construction was impossible It can be widely applied to.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
PCT/JP2012/065472 2011-09-29 2012-06-18 道路舗装機械の敷き均し装置 WO2013046821A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280047521.1A CN103827394B (zh) 2011-09-29 2012-06-18 铺路机的平整装置
US14/345,643 US20140369751A1 (en) 2011-09-29 2012-06-18 Leveling device of road paving machine
EP12837073.1A EP2762640B1 (en) 2011-09-29 2012-06-18 Leveling device of road paving machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011214033A JP5818615B2 (ja) 2011-09-29 2011-09-29 道路舗装機械の敷き均し装置
JP2011-214033 2011-09-29

Publications (1)

Publication Number Publication Date
WO2013046821A1 true WO2013046821A1 (ja) 2013-04-04

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PCT/JP2012/065472 WO2013046821A1 (ja) 2011-09-29 2012-06-18 道路舗装機械の敷き均し装置

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US (1) US20140369751A1 (zh)
EP (1) EP2762640B1 (zh)
JP (1) JP5818615B2 (zh)
CN (1) CN103827394B (zh)
WO (1) WO2013046821A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108951380A (zh) * 2018-08-14 2018-12-07 三汽车制造有限公司 一种熨平挡料装置及摊铺机
US11473250B2 (en) * 2020-01-21 2022-10-18 Wirtgen Gmbh Placer spreader with adjustable strike off

Citations (2)

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JP3383908B2 (ja) 1999-06-15 2003-03-10 住友建機製造株式会社 アスファルトフィニッシャ等の道路舗設車両のスクリード装置
JP2008038487A (ja) * 2006-08-07 2008-02-21 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 道路舗装機械におけるスクリード調整機構

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DE2823727C2 (de) * 1978-05-31 1985-02-21 Dynapac HOES GmbH, 2906 Wardenburg Glättbohle eines Straßenfertigers zum Einbauen von Straßendeckenbaustoff
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JP3383908B2 (ja) 1999-06-15 2003-03-10 住友建機製造株式会社 アスファルトフィニッシャ等の道路舗設車両のスクリード装置
JP2008038487A (ja) * 2006-08-07 2008-02-21 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 道路舗装機械におけるスクリード調整機構

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Title
See also references of EP2762640A4

Also Published As

Publication number Publication date
EP2762640A1 (en) 2014-08-06
US20140369751A1 (en) 2014-12-18
CN103827394A (zh) 2014-05-28
EP2762640A4 (en) 2015-06-17
JP2013072263A (ja) 2013-04-22
JP5818615B2 (ja) 2015-11-18
EP2762640B1 (en) 2017-04-19
CN103827394B (zh) 2016-05-11

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