Screed possessing uniform amplitude of spreader

A screed and paver technology, which is applied in the directions of roads, road repairs, roads, etc., can solve the problems such as the inability to meet the requirements of the horizontal amplitude uniformity of the screed, and achieve the effect of ensuring the horizontal flatness and compaction.

Inactive Publication Date: 2012-06-27
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of this method is that the calculated nominal amplitude is based on the calculation of the amplitude of the forced vibration of the single-degree-of-freedom spring-mass system with each section of the screed as an independent vibrating body and the eccentric excitation force of the vibrator installed on it as the external excitation. method to obtain
In view of the current development trend of increasing paving width of asphalt paver, this design method cannot meet the requirements of uniformity of lateral amplitude of the screed

Method used

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  • Screed possessing uniform amplitude of spreader
  • Screed possessing uniform amplitude of spreader
  • Screed possessing uniform amplitude of spreader

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Embodiment Construction

[0025] The paver includes a compaction system consisting of a vibrating mechanism, a screed, and a vibrator. It is located at the rear end of the paver. The vibrating mechanism includes a vibrating beam, a vibrator driving eccentric shaft 3, a bearing and a bearing seat 4, The vibrating beam includes a main vibrating beam 1 and an auxiliary vibrating beam 2, the main vibrating beam 1 and the auxiliary vibrating beam 2 are installed on the eccentric shaft 3 of the vibrator through bearings, and the eccentric shaft 3 of the vibrator is composed of The vibrator bearing seat 4 fixed on the screed box is supported, and the vibrator motor 5 drives the eccentric shaft 3 of the vibrator to rotate, driving the main vibrating beam 1 and the auxiliary vibrating beam 2 to reciprocate up and down , there are several sections of vibrating beams arranged along the paving width direction, the vibrator eccentric shafts 3 of each vibrating beam are connected through the vibrator coupling 6, the ...

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Abstract

The invention discloses a screed possessing uniform amplitude of a spreader, which is characterized in that an analysis for uniformity of the amplitude of the screed is carried out by calculating the amplitude value of each point on the screed; the design parameter of a vibrator and a vibration beam of a compacting system of the spreader can be optimized, under the prerequisite that the mean value of amplitude of the screed is ensured, the difference value of the maximum amplitude and the minimum amplitude of the screed can be effectively reduced, thereby the purposes of ensuring the transverse flatness and the compactness of the pavements can be reached.

Description

technical field [0001] The invention relates to a paver with a screed plate of uniform amplitude, which belongs to the technical field of road construction machinery. Background technique [0002] Asphalt concrete paver is a special construction machine for paving asphalt pavement. Its function is to spread the mixed asphalt concrete evenly on the subbase of the road surface, and ensure the thickness, width, camber and flatness of the paving layer. , compactness, etc. meet the construction requirements. The compaction system is the core working device of the asphalt concrete paver. It is mainly composed of a vibrating mechanism, a screed, and a vibrator. It is located at the rear end of the paver. The technical performance of the flat device directly affects the paving quality. [0003] The vibration of the screed makes the pavement compact and ironed, improves the compactness of the pavement layer, reduces the number of compaction times of the road roller, and plays an im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/48
Inventor 罗丹冯忠绪王晓云张锦华
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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