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leveling device for pavers

A paving machine, leveling technology, applied in the direction of roads, roads, road repairs, etc., to achieve the effect of performance improvement

Inactive Publication Date: 2016-05-11
SUMITOMO CONSTRUCTION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even in this type of screed 7B, when the first and second telescopic screeds 9 and 10 are not extended beyond the center line of the machine body at their respective inner ends 9a and 10a, if the screed applies The negative road camber is removed, not only on the second telescopic scraper 10 arranged behind the main scraper 8, but also on the first telescopic scraper 9 arranged in front of the main scraper 8, the above-mentioned second prior art A similar problem to the problem described in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preferred Embodiment 1 of the present invention will be described below with reference to FIGS. 1(a) and 1(b). First, the structure of the leveling device of the road paver according to the present embodiment will be described. As shown in Figure 1 (a), the leveling device (scraping device) 19 includes a pair of telescopic scrapers with a width approximately equal to the width of the main scraper 20 behind the main scraper 20 and stretched side by side in opposite directions and arranged front and back. 21 and 22.

[0035] And, in order to avoid the disadvantage explained in Fig. 5(b), the present embodiment is provided with a zigzagging up and down type lifting mechanism, in which when the road crown height is set to be negative, the pair of telescopic scrapers 21 and 22 The respective inner ends 21a and 22a are stretched within the range not exceeding the mechanical center line, and the lifting mechanism is on the respective inner ends 21a and 22a sides of the above-...

Embodiment 2

[0043] refer to figure 2 Example 2 of the present invention will be described. In this embodiment, the above-mentioned lifting mechanism is set as a parallel up and down type. Such as figure 2 As shown, the lifting mechanism of the parallel up and down type is capable of sliding up and down from the inner ends 21a and 22a of the respective telescopic scrapers 21 and 22 on one side of the respective inner ends 21a and 22a of the pair of telescopic scrapers 21 and 22 The scrapers 21b and 22b within the desired length range to the desired length portion, when sliding parallel to the sliding surfaces 24a and 24b, lift the above-mentioned scrapers 21b and 22b within the desired length range, respectively.

[0044] As a method for moving the scrapers 21b and 22b up and down when sliding the scrapers 21b and 22b within the required length ranges respectively parallel to the sliding surfaces 24a and 24b, a manual operation method or an automatic control method, etc. can be used. ...

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Abstract

The invention relates to a leveling device of a paving machine. The leveling device is provided with a main scraper and a pair of telescopic scrapers extending in opposite directions with a width approximately equal to the width of the main scraper. The leveling device is a pair of telescopic scrapers. Any of the type installed behind the main scraper, the type in which a pair of telescopic scrapers are installed in front of the main scraper, or the type in which one of a pair of telescopic scrapers and the other are installed in front and behind the main scraper, respectively In this way, the leveling device of the road paver enables negative crown paving construction to be properly performed within the paving width range in which paving construction is impossible in the negative crown method, and performance is improved. Solution: provide a lifting mechanism, if when the road crown height is set to be negative, in the situation where the respective inner ends 21a and 22a of the above-mentioned pair of telescopic scrapers 21 and 22 are stretched within the range not exceeding the center line of the device, The screeds 21b and 22b within the desired length range are lifted on the side of the respective inner ends 21a and 22a of the pair of telescopic screeds 21 and 22 according to the negative setting amount of the crown height.

Description

technical field [0001] The present invention relates to a leveling device of a paving machine, and more particularly, to a leveling device of a road paver which enables proper construction of negative crown paving within a paving width range in which construction of negative crown paving is impossible and improves performance. Background technique [0002] As a first prior art related to leveling devices for road paving machines, for example, there are known leveling devices for road laying vehicles such as image 3 , The asphalt rolling machine shown in Figure 4(a) and 4(b). exist image 3 Among them, the paving machine 1 is provided with a hopper 3 for receiving an asphalt mixture from a dump truck or the like at the front of a machine main body 2 , and a feeder 4 for conveying the asphalt mixture in the hopper 3 to the rear. After the asphalt mixture is conveyed backward by the feeder 4 and falls on the roadbed, it is conveyed in the horizontal width direction by the scre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C19/48
CPCE01C19/48E01C2301/16E01C19/4866
Inventor 小林聪伊藤洋平渡边哲也后藤文夫
Owner SUMITOMO CONSTRUCTION MACHINERY