Screed heating system of paver, heating method and paver

A heating system and screed technology, applied in roads, road repairs, roads, etc., can solve the problem of unreliable control of the heating temperature of sub-section screeds, and achieve the effect of precise temperature control and good paving quality

Inactive Publication Date: 2015-12-09
DYNAPAC CHINA COMPACTION & PAVING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problem existing in the prior art that when the temperature sensor of a sub-section screed fails, the heating temperature of the sub-section screed cannot be reliably controlled, the present invention provides a heating system for a paver screed, heating The method and the paver can control the temperature of the screed in the subsection where the temperature sensor fails, so that better paving quality can be obtained

Method used

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  • Screed heating system of paver, heating method and paver
  • Screed heating system of paver, heating method and paver
  • Screed heating system of paver, heating method and paver

Examples

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Effect test

Embodiment 1

[0046] When the heating system of the screed is heated by one-time heating, when one of the temperature sensors (assumed in this embodiment, the first temperature sensor 5) fails and cannot work normally, the heating controller 6 will The temperature of screed 2 in the second subsection, the heating time of screed 1 in the first subsection and the heating time of screed 2 in the second subsection, and the historical heating speed of screed 1 in the first subsection and the screed in the second subsection 2 to calculate the nominal temperature of the screed 1 in the first subsection, and control the first heating element 3 to heat the screed 1 in the first subsection according to the nominal temperature of the screed 1 in the first subsection.

[0047] The calculation method of the nominal temperature of the first sub-section screed 1 is as follows:

[0048] T 1t =T 10 +(V 1hh ⅹV 2th / V 2hh )xt 1h ;

[0049] V 2th =(T 2t -T 20 ) / t 2h ;

[0050] Among them, T 1t Ind...

Embodiment 2

[0053] When the heating system of the screed is heated by a circulation heating method, if the first temperature sensor 5 fails during the cooling process, the heating controller 6 will also control the screeds of the first subsection 1 and the second subsection screed 2 The cooling time is counted, and the cooling rate of the first subsection screed 1 and the historical cooling rate of the second subsection screed 2 are obtained to calculate the nominal temperature of the first subsection screed 1, and according to the first subsection screed The nominal temperature of the screed 1 is used to control the heating of the first subsection screed 1 by the first heating element 3 .

[0054] The calculation method of the nominal temperature of the first sub-section screed 1 is as follows:

[0055] T 1t =T 10 +(V 1hc ⅹV 2tc / V 2hc )xt 1c ;

[0056] V 2tc =(T 2t -T 20 ) / t 2c ;

[0057] Among them, T 1t Indicates the nominal temperature of the first subsection screed 1, T...

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Abstract

The invention discloses a screed heating system of a paver. The screed at least comprises a first sub-screed and a second sub-screed. The heating system comprises heating components, temperature sensors, and a heating controller. The heating components comprise a first heating component and a second heating component. The first heating component and the second heating component are arranged on the first sub-screed and the second sub-screed correspondingly. The temperature sensors comprise a first temperature sensors used for detecting the temperature of the first sub-screed and a second temperature sensor used for detecting the temperature of the second sub-screed. The heating controller is arranged to carry out heating control of the heating components according to temperature information of the screed obtained by the temperature sensors. The heating controller controls the heating component to heat the sub-screed according to the nominal temperature of the sub-screed corresponding to the failure temperature sensor obtained through calculation, accurate temperature control of the sub-screed can be achieved, and therefore good paving quality can be obtained.

Description

technical field [0001] The invention belongs to the technical field of paver, and in particular relates to a screed heating system of a paver, a heating method and a paver. Background technique [0002] A paver is a device that receives paving materials and distributes them over the entire paving width, and then smoothes and compacts the final pavement. screed etc. The screed is used to level and compact the paving material and finally shape the road surface, usually in two forms: mechanical assembly screed and telescopic screed. The mechanically assembled screed is composed of a main section screed and multiple extended section screeds of different widths; the telescopic screed includes a main section screed and a telescopic section screed. Compared with the main section screed, the telescopic section screed can be Transverse means stretching across the width of the pavement. Of course, when the telescopic screed is used for paving larger paving widths, other extension s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/48
Inventor 王友宝
Owner DYNAPAC CHINA COMPACTION & PAVING EQUIP
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