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Ironing board of asphalt paver with downward deformation by being pre-pressed by strut and pull rods

A technology of screed and tie rod, applied in the direction of road, road repair, road, etc., to achieve the effect of wide application range, novel and reasonable design, and improvement of paving smoothness

Inactive Publication Date: 2012-08-15
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a kind of asphalt paver screed in which the tie rods are pre-pressed and deformed downwards in view of the above-mentioned deficiencies in the prior art. Low, wide application range, can effectively solve the problem of thermal deformation of the paver screed in the working process, and improve the paving smoothness of the road surface

Method used

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  • Ironing board of asphalt paver with downward deformation by being pre-pressed by strut and pull rods
  • Ironing board of asphalt paver with downward deformation by being pre-pressed by strut and pull rods

Examples

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Embodiment Construction

[0022] Such as figure 1 As shown, the present invention includes a mechanically assembled widened screed composed of a basic section screed and a plurality of extended section screeds 2 symmetrically installed on the left and right sides of the basic section screed. Two symmetric single-segment basic screeds 1 are connected together; each single-segment basic screed 1 is provided with a basic screed support 3, and each of the extended screeds 2 is provided with a The extended section screed support 4 is provided with a plurality of bracing rods 5 between the two basic section screed braces 3 and a plurality of the extended section screed braces 4, and one end of the bracing rod 5 is installed in the The screw length adjusting device 6 on the basic section screed bracket 3 is connected to the basic section screed bracket 3, and the other end of the bracing rod 5 passes through the screw length adjusting device 6 installed on the extended section screed bracket 4 Connected to th...

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PUM

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Abstract

The invention discloses an ironing board of an asphalt paver with downward deformation by being pre-pressed by strut and pull rods. The ironing board comprises a base segment ironing board and a mechanically assembled and widened ironing board constituted by a plurality of lengthened segment ironing boards, wherein the base segment ironing board is formed by connecting two single-segment base segment ironing boards; a base segment ironing board support is arranged on each single-segment base segment ironing board, a lengthened segment ironing board support is arranged on each lengthened segment ironing board, and a plurality of strut and pull rods are arranged between the two base segment ironing board supports and a plurality of lengthened segment ironing board supports; and the left side and right side of the mechanically assembled and widened ironing board are symmetrically gradually downwards inclined and deformed along the normal line direction of the bottom surface of the mechanically assembled and widened ironing board under the action of the plurality of strut and pull rods, the downward inclination deformation amount h is 0-60mm, and the greater the width of the mechanically assembled and widened ironing board, the bigger the value of h. The ironing board disclosed by the invention has the advantages of reasonable design, convenience in processing and manufacturing, convenience and quickness in operation, low implementation cost, wide range of application, and capability of effectively solving the thermal deformation problem of the ironing board of the paver during the working process.

Description

Technical field [0001] The invention relates to a screed for a paving machine, in particular to a screed for an asphalt paving machine that is deformed downwardly by a pre-compression rod. Background technique [0002] As the core working device of the asphalt paver, the screed directly determines the paving quality and performance of the machine. At present, the screeds of asphalt pavers at home and abroad adopt a rectangular box structure welded by steel plates, and the bottom is fixed with a wear-resistant bottom plate by bolts. When paving the hot mix asphalt mixture, the screed plate of the paver will be heated to a high temperature above 130°C, while the upper part of the screed box is at ambient temperature. Due to the large temperature difference between the top and bottom of the screed box structure, the expansion of the lower part of the screed at a high temperature is much greater than that of the upper part of the screed at a low temperature, which causes the entire ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/48
Inventor 赵利军冯忠绪王成侯有良沈建军
Owner CHANGAN UNIV
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