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Screed and paver

A screed and paver technology, which is applied in the field of construction machinery, can solve the problems that the screed is prone to distortion and deformation, affects the quality of the paved road, and the paved road is uneven

Active Publication Date: 2012-10-10
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

[0029] 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.

[0030] In the present invention, in the absence of a contrary statement, the used orientation words such as "upper and lower" refer to figure 2 Different height positions in the vertical direction shown, "left and right" refer to figure 1 Different positions on either side of the centerline L-L are shown.

[0031] like figure 1 and figure 2 As shown, one aspect of the present invention provides a screed, which includes a screed main body 1, wherein the screed also includes a left tensioning device 2 and a right tensioning device 3, the left tensioning device 2 and the right tensioning device The tensioning device 3 is arranged symmetrically with respect to...

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Abstract

The invention discloses a screed. The screed comprises a screed body (1), a left tension device (2) and a right tension device (3), wherein the left tension device (2) and the right tension device (3) are arranged symmetrically relative to a central line (L-L) of the screed body (1), one end of the left tension device (2) and one end of the right tension device (3) are respectively connected with an end portion of the screed body (1) at different height positions of the screed body (1), and the lengths of the left tension device (2) and the right tension device (3) both can be adjusted. The invention also discloses a paver. The torsional rigidity of the whole screed is good and the screed can not be twisted and deformed easily.

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 Applications(China)
IPC IPC(8): E01C19/48
Inventor 刘兵华许辉王伟罗丹婷
Owner ZOOMLION HEAVY IND CO LTD
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