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Ironing plate and spreading machine

A screed and substrate technology, applied in the field of construction machinery, can solve the problems of uneven paving road surface, easy distortion of the screed plate, affecting the quality of the paved road surface, etc.

Active Publication Date: 2015-04-01
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the screed moves forward, the mixture in the trough exerts a certain resistance on the screed and there is friction between the soleplate of the screed and the road surface, causing the screed to bend backwards and twist, making the extension of the screed The working elevation angle of the screed is smaller than that of the base plate of the screed, and gradually decreases from the base plate of the screed towards the two ends of the screed, which affects the quality of the entire paving surface
Especially for a paver with a larger width, the wider the paving width, the smaller the overall torsional rigidity of the screed, the easier the screed is twisted and deformed, and the attenuation of the working elevation angle of the screed along the width direction is more serious. cause uneven pavement

Method used

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Embodiment Construction

[0041] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0042] In the present invention, unless stated to the contrary, the used orientation words such as "upper and lower" usually refer to figure 1 Different height positions in the vertical direction shown, "left and right" usually refer to figure 1 Different positions on both sides of the center line shown, "front and back" usually refer to such as figure 2 Different vertical positions are shown. The working elevation angle β refers to the angle between the bottom surface of the screed main body and the road surface.

[0043] Such as Figure 1-Figure 4 As shown, one aspect of the present invention provides a screed, which includes a screed main body 1, wherein...

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Abstract

The invention discloses an ironing plate. The ironing plate comprises a main body (1) of the ironing plate. The ironing plate also comprises a distortion preventing device (2), wherein the distortion preventing device (2) is symmetrically installed at the back side of the main body (1) of the ironing plate relative to the center line (L-L) of the main body (1) of the ironing plate along the width direction of the main body (1) of the ironing plate; and moreover, the distortion preventing device (2) and the main body (1) of the ironing plate form a truss structure. The invention also discloses a spreading machine with the ironing plate. The integral bending rigidity and torsional rigidity of the ironing plate are better, and the phenomena of bending and torsional deformation are not easy to occur.

Description

technical field [0001] The invention relates to engineering machinery, in particular to a screed for a paver and a paver. Background technique [0002] As the working device of the paver, the screed is installed at the rear of the paver. Its main function is to complete the pre-compacting and ironing tasks of the mixture. The operations of the paver are all performed by the screed. [0003] When the paver is working, there is a working elevation angle between the screed and the road surface. The main machine drags the screed forward through the traction arm, and the mixture is scraped and pushed by the front baffle, enters the compacting space of the tamper, and passes through the rammer. The pre-compaction of the mixture enters the wedge-shaped space between the screed soleplate and the road surface, and then the screed is completed under the action of the self-weight of the screed and the vibration mechanism. [0004] When the paver is in operation, there is a certain amo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C19/48
Inventor 刘兵华许辉彭志威罗丹婷
Owner ZOOMLION HEAVY IND CO LTD
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