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WO2013026198A1 - Machine d'étalage et dispositif de repassage associé - Google Patents

Machine d'étalage et dispositif de repassage associé Download PDF

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Publication number
WO2013026198A1
WO2013026198A1 PCT/CN2011/078823 CN2011078823W WO2013026198A1 WO 2013026198 A1 WO2013026198 A1 WO 2013026198A1 CN 2011078823 W CN2011078823 W CN 2011078823W WO 2013026198 A1 WO2013026198 A1 WO 2013026198A1
Authority
WO
WIPO (PCT)
Prior art keywords
screed
cylinder
pressure source
support rod
spring assembly
Prior art date
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.)
Ceased
Application number
PCT/CN2011/078823
Other languages
English (en)
Chinese (zh)
Inventor
余林
刘兵华
龚敬
许辉
彭志威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Zoomlion Special Vehicle Co Ltd
Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd
Original Assignee
Hunan Zoomlion Special Vehicle Co Ltd
Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd
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 Hunan Zoomlion Special Vehicle Co Ltd, Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd filed Critical Hunan Zoomlion Special Vehicle Co Ltd
Priority to PCT/CN2011/078823 priority Critical patent/WO2013026198A1/fr
Publication of WO2013026198A1 publication Critical patent/WO2013026198A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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

Definitions

  • a screed is a working device of a paver, which is disposed at the rear of the paver and is responsible for completing the initial compaction and ironing tasks of the mixture. The operation function and the work quality of the paver are all determined by the ironing device. Realized. As shown in Figures 1 and 2, the screed consists essentially of a basic screed 10' (the basic screed of the retractable screed includes a main screed and a secondary screed), an extended screed 40' of various lengths, and the like.
  • Both the basic screed 10' and the extended screed 40' are symmetrically distributed. Both the basic screed 10' and the extended screed 40' each include an end plate and a bottom plate 83', wherein the elongated screed 40' has an end plate for attachment on both sides.
  • a hammer mechanism 82' is disposed directly in front of the bottom plate 83', and a hammer front baffle 8 is disposed in front of the hammer mechanism 82'.
  • a vibrator is arranged on the screed box, and the tamper mechanism 82' and the vibrator are vibration systems with eccentric shafts.
  • the basic screed 10' is mounted on the towing boom of the paver mainframe, and the entire screed is advanced by the mainframe.
  • the extended screed 40'-side extension end plate 41' is attached to the base section end plate 1 of the base screed 10', and the extended side end plate 4' on the other side can be used to connect other extension screeds 40'.
  • the screed includes a plurality of lengthened screeds 40' of different lengths. In order to achieve different working widths, the lengthening screed 40' is currently attached to each side by a human connecting bolt 30'. When attaching the screed 40', the front mounting bolts need to be lifted. The hammer front baffle 8 ⁇ leaves the wrench's operating space to tighten the bolts, and the installation space is limited.
  • the installation space here is very limited, so that the pre-tightening force of the bolts at this place is smaller than others.
  • the bolt with a small preload force is easily loosened, resulting in insufficient clamping force between the two screeds.
  • the screed is bonded with asphalt material after use, and it is difficult to lift the tamper front baffle 8 ⁇ at the front of the screed, and sometimes even after the asphalt is cleaned.
  • the extended screed 40' is heavy and takes a long time to install, and the operator is labor intensive and time consuming.
  • the existing ironing device has the following disadvantages: 1.
  • An object of the present invention is to provide a paver and an ironing apparatus thereof which are easy to install and which can reduce the labor intensity of an operator.
  • the invention provides a screeding device comprising a basic screed and an elongated screed connected thereto, a clamping mechanism, a basic screed and an extended screed, the clamping mechanism comprising: a drive system, including a cylinder block, a piston and a support rod, the support rod passes through the basic screed and the extension screed, the support rod is coupled to the piston, and the first end of the cylinder is pressed against one of the elongated screed and the basic screed; the power system, including the pressure The source, the pressure source is connected to the cylinder; the energy storage system includes a spring assembly, the first end of the spring assembly is pressed against the second end of the cylinder; the limit adjustment system is connected with the support rod, and the limit adjustment system includes a first limit adjustment portion, the first limit adjustment portion and the support rod have a first position to pass through the basic screed, and a second position to press against the other of the elongated screed and the basic screed; When the tightening mechanism is in the clampe
  • the first limit adjustment portion includes a limit nut, and the limit nut is screwed to the support rod.
  • the basic screed is provided with an insertion hole and a positioning hole which are connected to each other, and the limiting nut and the support rod which are sleeved on the support rod pass through the insertion hole when the support rod is in the first position, and the limit nut and the support rod are at The second position is pressed against the edge of the positioning hole.
  • a spring assembly is interposed between the piston and the second end of the cylinder. Further, the piston opens a spring assembly guiding groove, and the spring assembly is compressively disposed between the bottom surface of the spring assembly guiding groove and the second end of the cylinder.
  • the second end of the piston is provided with a spring assembly guiding groove, and the spring assembly is compressively disposed in the spring assembly guiding groove.
  • the ironing device further includes a vertical adjusting portion including an adjusting member and a pressing member screwed to the adjusting member, and one end of the pressing member is coupled to the elongated screed.
  • the drive system further includes a pressure source connection pipe, one end of the pressure source connection pipe is in communication with the pressure source, and the other end is in communication with the interior of the cylinder block.
  • the first end of the cylinder is provided with a first end cover, and the second end is provided with a second end cover.
  • the side of the first end cover facing the interior of the cylinder has a boss, and the boss faces the interior of the cylinder.
  • the maximum distance of the end face along the axial direction of the support rod from the end face of the second end cover facing the inside of the cylinder body is H.
  • the pressure source connection pipe has an oil inlet port, and the oil inlet port is axially oriented along the support rod.
  • the maximum distance of the end face of the two end cap facing the inside of the cylinder is H 2 , wherein H 2 > H lt)
  • the ironing device further comprises a connection force driving mechanism including an accumulator, an accumulator The first end is in communication with the pressure source, and the second end is in communication with the pressure source connection tube.
  • connection force driving mechanism further includes a pressure monitoring mechanism connected to the pressure source connecting pipe for monitoring the internal pressure of the cylinder. Further, the connection force driving mechanism further includes an overflow mechanism that communicates with both the pressure source and the pressure source connection pipe for defining the internal maximum pressure of the cylinder. Further, the connection force drive mechanism further includes a shutoff valve that is in communication with both the pressure source and the pressure source connection pipe.
  • the present invention also provides a paver comprising the aforementioned ironing device.
  • the first end of the cylinder is pressed against the elongated screed, and the first limit adjustment portion is passed through the basic screed And in the first position, the spring assembly is in an initial compressed state; the first limit adjustment portion is adjusted from the first position to the second position, and then the pressure source connected to the cylinder is turned on, and is directed to the cylinder Internally input pressure oil, driven by hydraulic pressure, the first limit adjustment is pressed against the basic screed and the basic screed is clamped to the extended screed by hydraulic pressure.
  • Figure 1 is a front elevational view of a prior art ironing apparatus, wherein the direction indicated by the arrow is the forward direction of the paver;
  • Figure 2 is a side view of the prior art ironing apparatus;
  • Figure 3 is a schematic view of the present invention;
  • Figure 4 is a schematic view showing the structure of the clamping mechanism of the ironing device according to the present invention;
  • Figure 5 is a schematic front view showing the lengthening screed of the ironing device according to the present invention;
  • FIG. 7 is a side elevational view of the screed apparatus in accordance with the present invention; and
  • the ironing apparatus in accordance with the present invention includes a base screed 10 and an elongate screed 40 coupled thereto, and a clamping mechanism 30 that connects the base screed 10 and the elongate screed 40.
  • the clamping mechanism 30 includes: a drive system including a cylinder block 331, a piston 333 and a support rod 335.
  • the support rod 335 passes through the basic screed 10 and the elongated screed 40, and the support rod 335 is coupled to the piston 333.
  • the first end of the cylinder block 331 is pressed against the elongated screed 40;
  • the power system includes a pressure source, and the pressure source is in communication with the cylinder block 331;
  • the energy storage system includes a spring assembly 321, and the first end of the spring assembly 321 is abutted Pressing on the second end of the cylinder block 331;
  • the limit adjustment system is connected to the support rod 335, the limit adjustment system includes a first limit adjustment portion, and the first limit adjustment portion and the support rod 335 have a basic screed The first position of 10 and the second position against the basic screed 10.
  • the cylinder 331 When the clamping mechanism is in the clamped state, the cylinder 331 is filled with oil pressure; when the clamping mechanism is in the released state, the oil pressure is released in the cylinder 331. To extend the working width of the screed, the first end of the cylinder 331 is pressed against the elongated screed 40, and the first limit adjustment portion is passed out of the basic screed 10 and in the first position, at which time the spring assembly 321 is in an initial compressed state.
  • the first limit adjusting portion is adjusted from the first position to the second position, then the pressure source communicating with the cylinder 331 is turned on, and the pressure oil is input to the inside of the cylinder 331, and driven by the hydraulic pressure, first
  • the limit adjustment portion retracts and presses against the basic screed 10 and clamps the basic screed 10 to the extended screed 40 by hydraulic pressure.
  • This kind of ironing device is easy to install the extended screed 40 when the screed is extended, no need for manual
  • the fasteners are tightened so that the screed is not affected by the front bezel 81 of the tamper mechanism 82 when lengthened, which reduces the labor intensity of the operator and speeds up the installation of the screed 40.
  • the cylinder block 331 can also be pressed against the basic screed 10, and the first limit adjustment portion is pressed against the elongated screed 40.
  • a basic screed 10 the screed to which the extension screed 40 is to be attached, which is already connected to the paver, is referred to as a basic screed 10; the screed to be connected outside the basic screed 10 is referred to as Lengthen the screed 40.
  • Lengthen the screed 40 Taking Figure 3 as an example, when there is only one screed on each side of the paver, the screed is referred to as the basic screed 10 at this time.
  • the screed connected thereto is referred to as an extended screed 40.
  • the first limit adjustment portion includes a limit nut 314, and the limit nut 314 is screwed to the support rod 335.
  • a limit nut 314 is disposed at one end of the support rod 335 and is threadedly coupled thereto.
  • the first limit adjustment portion further includes a washer 313 disposed between the limit nut 314 and the basic screed 10.
  • the distance between the washer 313 and the first end of the cylinder 331 and the clamping face of the elongated screed 40 can be adjusted to satisfy the basic screed 10 and the extended screed 40.
  • the washer 313 abuts against the basic screed 10
  • the first end of the cylinder 331 abuts against the elongated screed 40 to complete the tight connection of the two connected members.
  • the first end of the cylinder block 331 is detachably coupled to the elongated screed 40.
  • At least two threaded holes 340 for attachment are provided on the first end of the cylinder block 331, and the cylinder 331 of the clamping mechanism is coupled to the elongated end plate 41 of the elongated screed 40 by the threaded holes 340.
  • the distance L between the elongated end plate 41 and the washer 313 of the clamping mechanism is slightly larger than that of the basic screed 10 being connected.
  • the thickness of the base end plate 11, the connection between the elongated screed 40 and the basic screed 10 is as shown in FIG. As shown in FIG.
  • the basic screed 10 is provided with a mounting hole 121 and a positioning hole 122 which are connected to each other, and are sleeved through the mounting hole when the limiting nut 314 of the support rod 335 and the support rod 335 are in the first position. 121.
  • the limit nut 314 and the support rod 335 are pressed against the edge of the positioning hole 122 when in the second position.
  • the ironing device further includes a vertical adjustment portion 20.
  • the first limit adjustment portion further includes a washer 313 disposed between the limit nut 314 and the basic screed 10.
  • the diameter of the loading hole 121 is larger than the diameters of the limiting nut 314 and the washer 313, so that in the first position, the limiting nut 314 and the washer 313 can move in the axial direction of the support rod 335, penetrate from the loading hole 121 or Wear it out.
  • the locating hole 122 has a diameter at least smaller than the washer 313, so that in the second position, the limit nut 314 and the washer 313 are pressed against the periphery of the locating hole 122.
  • the support rod 335 of the clamping mechanism 30 on the screed 40 is inserted into the corresponding loading hole 121 of the end plate 11 of the connected basic screed 10, and then placed in the positioning hole 122. Then, the adjustment vertical adjustment portion 20 is adjusted so that the bottom plates 83 of the adjacent two screeds are on the same horizontal plane.
  • the vertical adjustment portion 20 includes an adjustment member 21 and a pressing member 22 screwed to the adjustment member 21, and one end of the pressing member 22 is coupled to the extension screed 40.
  • the adjusting member 21 is an adjusting bolt which is screwed to the inverted "L"-shaped pressing member 22.
  • the adjusting member 21 is pressed against the outer side of each connected basic screed, and the pressing member 22 is attached to the elongated screed 40.
  • the pressing member 22 is driven to move in the vertical direction to drive the elongated screed 40 to move in the vertical direction.
  • the arrangement of the vertical adjustment portion 20 allows the operator to conveniently and accurately adjust the position of the elongated screed 40.
  • the vertical adjustment portion 20 is provided on the outer side of the screed, it is easier to adjust.
  • the spring assembly 321 is interposed between the piston 333 and the second end of the cylinder block 331.
  • the second end of the piston 333 is provided with a spring assembly guiding groove, and the spring assembly 321 is compressively disposed between the bottom surface of the spring assembly guiding groove and the second end of the cylinder block 331.
  • the first end of the piston 333 is fixedly coupled or detachably coupled to the support rod 335.
  • the piston 333 is provided with a spring assembly guide groove recessed inside the piston 333, and the spring assembly 321 is disposed between the bottom surface of the spring assembly guide groove and the second end cover 323 of the second end of the cylinder 331.
  • the spring assembly 321 In the initial state of the clamping mechanism, the spring assembly 321 is in a compressed state, and under the force of the spring assembly 321, the end face A of the piston 333 is fitted to the end face B of the first end cap 332 at the first end of the cylinder block 331.
  • the first end cover 332 is a guiding end cover, which itself has a certain length along the axial direction of the support rod 335, and guides the movement of the support rod 335 passing therethrough to ensure the smoothness of the movement of the support rod 335.
  • the drive system further includes a pressure source connecting pipe 334 having one end connected to the pressure source and the other end communicating with the inside of the cylinder 331.
  • the pressure source connecting pipe 334 is disposed on the side of the cylinder block 331 and communicates with the inside of the cylinder block 331 for connecting the pressure source.
  • the first end of the cylinder block 331 is provided with a first end cover 332, and the second end is provided with a second end cover 323, and the side of the first end cover 332 facing the inside of the cylinder block 331 has Boss, the boss facing the cylinder 331
  • the inner end face has a maximum distance Hi from the end face of the second end cover 323 toward the inner side of the cylinder block 331 in the axial direction of the support rod 335, and the pressure source connection pipe 334 has an oil inlet port, and the oil inlet port supports the oil inlet port.
  • the axial direction of the rod 335 is a maximum distance of 3 ⁇ 4 from the end face of the second end cover 323 facing the inside of the cylinder 331, wherein 3 ⁇ 4>3 ⁇ 4.
  • the pressure source connecting pipe 334 is a fuel pipe joint
  • the cylinder block 331 is fixedly coupled to the first end cap 332 with the boss and the oil pipe joint.
  • the piston 333 is in the initial position before the hydraulic oil is introduced into the pressure source connecting pipe 334. Under the action of the spring assembly 321, the end face A of the piston 333 is brought into contact with the end face B of the boss.
  • the arrangement of the boss and its positional relationship with the oil inlet ensures the communication between the oil inlet and the internal space of the cylinder 331.
  • the ironing device further includes a connection force driving mechanism including an accumulator 61, the first end of the accumulator 61 is in communication with the pressure source, and the second end thereof is in communication with the pressure source connection pipe 334.
  • the accumulator 61 is for holding the oil pressure in the cylinder 331 when the clamp mechanism 30 is in the clamped state.
  • the connection force drive mechanism further includes an overflow mechanism 63 that communicates with both the pressure source and the pressure source connection pipe 334 for defining the internal maximum pressure of the cylinder block 331.
  • the connection force drive mechanism further includes a pressure monitoring mechanism 64 in communication with the pressure source connection pipe 334 for monitoring the internal pressure of the cylinder block 331.
  • the overflow mechanism 63 is a relief valve and the pressure monitoring mechanism 64 is a pressure relay or a pressure sensor.
  • the connecting force driving mechanism is composed of an accumulator 61, a shut-off valve 62 or other type of valve, a relief valve, a pressure relay or a pressure sensor which can block the oil passage, and the connecting force driving mechanism is connected by a hydraulic hose 65 at one end.
  • the upper pressure source is connected to the other end to a hydraulic hose 65, and the end of the hydraulic hose 65 is provided with a quick joint 69.
  • the connection force drive mechanism is mounted on the paver mainframe or the basic screed 10.
  • the quick joint 69 is directly connected to the pressure source connecting pipe 334 through the oil pipe distributing valve block 68 and the hydraulic oil pipe 67.
  • the accumulator 61 holds the oil pressure in the cylinder 331 of the clamp mechanism 30 and replenishes the leakage of the hydraulic fluid of each hydraulic component to ensure the clamping force of the clamp mechanism.
  • the connecting force driving mechanism opens the control switch to timely pressurize the cylinder 331.
  • the maximum value of the charge is set by the relief valve.
  • the clamping force of the clamping mechanism is always between the value set by the pressure relay or pressure sensor and the value set by the relief valve, ensuring sufficient clamping force between the two screeds.
  • the pressure relay or the pressure sensor and the relief valve can be adjusted quickly and in time to obtain the clamping force of different clamping mechanisms, which can meet the connection of screeds of different specifications and sizes.
  • the force required for the connection of different screeds can be quickly adjusted according to the actual situation.
  • the two interconnected screeds are connected by a plurality of clamping mechanisms.
  • the support rod 335 of the clamping mechanism 30 on the elongated screed 40 is inserted into the corresponding loading of the base end plate 11 of the connected basic screed 10. After the hole 121, it is placed in the positioning hole 122. The adjustment member 21 is then adjusted so that the bottom plates 83 of the adjacent two screed are on the same level.
  • the power system is connected by a connection drive mechanism, and a hydraulic hose 65 with a quick connector 69 on the connection force drive system is connected to the pressure source connection pipe 334 on the extension screed.
  • the control switch of the connection force driving mechanism is opened, and under the driving of the hydraulic pressure, the flat washer 313 on the support rod 335 is fitted on the basic end plate 11 of the connected basic screed 10, and finally the adjacent two ironings are clamped. flat.
  • the control switch of the connection force drive mechanism is opened, the oil in the cylinder 331 of the clamp mechanism 30 is returned to the oil tank, and the quick connection 69 connected to the extension screed 40 is released.
  • the support rod 335 extends outward.
  • the distance L between the elongated end plate 41 of the elongated screed 40 of the mounting clamp mechanism 30 and the flat washer 313 is slightly greater than the thickness of the base end plate 11 to which the basic screed 10 is to be attached, and the screed 40 is raised.
  • the flat washer 313 on the clamping mechanism is withdrawn from the loading aperture 121 of the base end plate 11 of the attached basic screed 10. Thereby the lengthening screed 40 is removed from the entire paver.
  • the quick loading and unloading screed of the invention can realize the rapid assembly and disassembly of the extended screed according to the variation of the paving work width, and greatly reduces the labor intensity of the operator, saving time and labor. And it is not affected by the vibration of the mechanism such as the hammer, vibrator, etc., and its clamping force is always kept within the preset range.
  • the screed has sufficient overall rigidity to ensure paving quality.
  • the present invention also provides a paver comprising the aforementioned ironing device.
  • the paver of the present invention can quickly realize the loading and unloading of the screed according to the required width of the paved road surface, and the connecting force of the connecting end plates is substantially the same, which improves the overall rigidity of the screed.
  • the paver of the present invention can quickly adjust the connection force according to the actual situation, thereby ensuring a stable connection between the screeds and ensuring the paving quality of the road surface. From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: 1. The screed of the paver is not affected by the front baffle of the hammer when lengthened;

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

La présente invention concerne un dispositif de repassage et une machine d'étalage associée. Le dispositif de repassage comprend une plaque de repassage de base (10) et une plaque de repassage rallongée (40) reliée à ladite plaque de repassage de base, et comprend en outre un mécanisme de serrage (30). Le mécanisme de serrage (30) comprend : un système d'entraînement qui comprend un corps cylindre (331), un piston (333) et une tige de support (335), la tige de support (335) passant à travers la plaque de repassage de base (10) et la plaque de repassage rallongée (40), et une première extrémité du corps cylindre (331) étant comprimée contre la plaque de repassage rallongée (40) ; un système de puissance qui comprend une source de pression en communication avec le corps cylindre (331) ; un système de stockage d'énergie qui comprend un composant ressort (321), une première extrémité du composant ressort (321) étant comprimée contre une seconde extrémité du corps cylindre (331) ; et un système de réglage de limite qui comprend une première partie de réglage de limite, la première partie de réglage de limite et la tige de support (335) étant pourvues d'une première position qui passe à travers la plaque de repassage de base (10) et d'une seconde position comprimée contre la plaque de repassage de base (10). Lorsque la plaque de repassage est rallongée, le dispositif de repassage est facile à monter, et des pièces de fixation n'ont pas besoin d'être vissées manuellement, et donc la main d'ouvre requise des opérateurs est réduite, et la vitesse de montage de la plaque de repassage rallongée est augmentée.
PCT/CN2011/078823 2011-08-24 2011-08-24 Machine d'étalage et dispositif de repassage associé Ceased WO2013026198A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078823 WO2013026198A1 (fr) 2011-08-24 2011-08-24 Machine d'étalage et dispositif de repassage associé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078823 WO2013026198A1 (fr) 2011-08-24 2011-08-24 Machine d'étalage et dispositif de repassage associé

Publications (1)

Publication Number Publication Date
WO2013026198A1 true WO2013026198A1 (fr) 2013-02-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112144354A (zh) * 2020-09-10 2020-12-29 深圳丰发一诺科技有限公司 一种效果好的混凝土自动整平装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1243182A (zh) * 1998-07-24 2000-02-02 Abg普通建筑机械公司 铺路机刮板
US6158921A (en) * 1998-07-31 2000-12-12 Blaw-Knox Construction Equipment Corporation Screed extension with independently adjustable angle of attack
CN1179095C (zh) * 2000-07-28 2004-12-08 Abg普通建筑机械公司 用于铺路机的铺路整平板
CN201372401Y (zh) * 2009-01-19 2009-12-30 中国农业机械化科学研究院 一种拼接机构及具有该拼接机构的摊铺机熨平装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1243182A (zh) * 1998-07-24 2000-02-02 Abg普通建筑机械公司 铺路机刮板
US6158921A (en) * 1998-07-31 2000-12-12 Blaw-Knox Construction Equipment Corporation Screed extension with independently adjustable angle of attack
CN1179095C (zh) * 2000-07-28 2004-12-08 Abg普通建筑机械公司 用于铺路机的铺路整平板
CN201372401Y (zh) * 2009-01-19 2009-12-30 中国农业机械化科学研究院 一种拼接机构及具有该拼接机构的摊铺机熨平装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112144354A (zh) * 2020-09-10 2020-12-29 深圳丰发一诺科技有限公司 一种效果好的混凝土自动整平装置

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