A scraping device for asphalt paver hopper
A paver and hopper technology is applied in the field of scraping devices for the hopper of an asphalt paver, and can solve the problems of waste of asphalt material, difficult to clean, and remaining in the hopper, etc., and achieves a good cleaning effect, convenient control and simple structure. Effect
Active Publication Date: 2020-06-19
雨发建设集团有限公司
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Problems solved by technology
However, when the output shaft of the oil cylinder is retracted, the scraper scrapes the residual asphalt in the hopper toward the oil cylinder, and this part of the asphalt is scraped to the back of the scraper, even if the scraper moves toward the conveying device again. When pushing and scraping, this part of the asphalt material cannot be scraped to the conveying device, and this part of the asphalt material will always remain in the hopper, thus becoming dead material that is not easy to clean, resulting in waste of asphalt material
Therefore, when the above-mentioned device is scraping, there will be more asphalt material remaining in the hopper, and the cleaning effect will be poor.
Method used
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[0034] A scraping device for asphalt paver hopper, such as figure 1 , including a hopper 1, a scraper 2 and a linear pusher for moving the scraper 2, preferably a hydraulic cylinder 3 is used as a linear pusher. The hopper 1 includes a bottom plate 1a, a side plate 1b and a back plate 1c, and the back plate 1c is directly opposite to the conveying device. A fixed plate 4 is slidably connected to the bottom plate 1a.
[0035] Such as figure 1 and figure 2, The fixed plate 4 includes a sliding plate 5 connected to the bottom plate 1a and a placement plate 6 rotatably connected to the sliding plate 5, and the placement plate 6 is inclined. The sliding plate 5 is hinged with a rotating hydraulic cylinder 21 that controls the rotation of the placing plate 6 , and the output shaft of the rotating hydraulic cylinder 21 is hingedly connected with the placing plate 6 . The bottom plate 1a is provided with a sliding groove 22 parallel to the side plate 1b, and the lower end of the ...
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The invention relates to the technical field of asphalt pavers and discloses a scraping device for a hopper of an asphalt paver. The scraping device comprises the hopper, scrapers and a driving hydraulic cylinder. Fixed plates are arranged at the bottom of the hopper; the scrapers are arranged on the fixed plates; the fixed plates each comprise a sliding plate arranged horizontally and a storing plate obliquely connected with the sliding plate, wherein the sliding plate and the storing plate are rotatably connected; the scrapers are arranged on the storing plates and are parallel to the storing plates; and the two ends of each scraper are slidably connected with strip-shaped scraping strips. Through the arrangement that the scraping strips are connected slidably and the sliding plates andthe storing plates are rotatably connected, when moving backwards, the scrapers do not make contact with the inner wall of the hopper and naturally do not scrape residual asphalt in the hopper to theback faces of the scrapers, and only when pushed forwards, do the scrapers make contact with the inner wall of the hopper and scrape the residual asphalt in the hopper in a pushing mode; and the scrapers scrape the asphalt in the hopper into a conveying device in the pushing mode continuously, so that the residual asphalt in the hopper is less, and the cleaning effect is good.
Description
technical field [0001] The invention relates to the technical field of asphalt paver, in particular to a scraping device for a hopper of an asphalt paver. Background technique [0002] During the road paving construction process, as the asphalt material in the hopper on the paver decreases, some asphalt material will remain at the bottom of the hopper. At this time, all the remaining asphalt material needs to be poured into the conveying device through the retractable hopper. However, in actual construction, it is found that the hopper of the general paver is heavy, and the frequent storage of the hopper will bring many hidden troubles to the paver; at the same time, as the temperature of the asphalt material decreases, the fluidity of the asphalt material in the hopper decreases and the viscosity increases. , causing part of the asphalt material to stick to the bottom of the hopper, resulting in dead material that is not easy to clean up, resulting in waste of asphalt mater...
Claims
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IPC IPC(8): E01C19/12
CPCE01C19/12
Inventor林雨发吴维
Owner雨发建设集团有限公司