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Powdery material metering and spreading device

A spreading device and technology of powdery materials, which are applied in the detection of fluid flow by measuring pressure difference, volume/mass flow generated by mechanical effects, roads, etc., can solve the problems of affecting construction quality, interval spreading, and low rotation speed of spreading rollers, etc. Achieve the effect of improving accuracy and uniformity of spreading, improving accuracy and ensuring uniformity of spreading

Pending Publication Date: 2020-06-05
DAGANG HLDG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In this case, especially when spreading a small amount, due to the fast driving speed and the low speed of the spreading roller, and the toothed structure of the spreading roller, when the powder falls on the road surface, there will be interval spreading in the driving direction, which is serious. Affect the construction quality

Method used

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  • Powdery material metering and spreading device
  • Powdery material metering and spreading device
  • Powdery material metering and spreading device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A metering and spreading device for powdery materials, including a metering component and a spreading component;

[0072] The metering assembly includes a metering housing 1, a valve plate 2, a rotating shaft 3, an end cover 4 and bolts 5;

[0073] The valve plate 2 is located in the metering housing 1; the valve plate 2 is installed on the rotating shaft 3, one end of the rotating shaft 3 is installed with a bearing on one side of the metering housing 1, and the other end of the rotating shaft 3 is matched with the bearing 6 on the other side of the metering housing 1 and then extended out The metering housing 1; the end cover 4 is coaxially fixed and installed on the side of the rotating shaft 3 extending out of the metering housing 1. The metering housing 1 is processed with a threaded hole for fixing the end cover, and the end cover 4 is processed with a threaded hole corresponding to the There are multiple through holes, and the positions of different through holes...

Embodiment 2

[0086] The metering assembly of embodiment 2 is the same as embodiment 1, and the difference is that the spreading assembly is a receiving frame 14, and the top of the receiving frame 14 communicates with the metering housing 1, and the bottom of the receiving frame 13 can be opened and closed, as Figure 5 shown.

[0087] On the basis of above two embodiments, the present invention also provides following optimized design:

[0088] 1. In order to accurately obtain the opening of the valve plate 2, the end cover is provided with a scale showing the rotation angle of the valve plate 2, and the scale ranges from 0° to 90°.

[0089] 2. The side of the rotating shaft 3 extending out of the metering housing is a square structure that can be operated by a wrench, or is provided with a driving motor. The first is to manually drive the rotating shaft to rotate, and the second is to drive the rotating shaft to rotate through the driving motor.

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Abstract

The invention discloses a powdery material metering and spreading device. The device comprises a metering assembly arranged between a material conveying mechanism and a spreading assembly. The metering assembly comprises a metering shell and a valve plate; the upper end of the metering shell is communicated with a discharge port of the conveying mechanism, and the lower end of the metering shell is located above the spreading assembly; the valve plate is arranged in the metering shell, a powder throttling channel is formed between the valve plate and the metering shell by rotating the valve plate, and therefore the flow of powder falling into the spreading assembly is controlled. By the adoption of the device, spreading is not affected by the spreading assembly any more, the accuracy and uniformity of the spreading amount are greatly improved, and then the quality of pavement construction is improved.

Description

technical field [0001] The invention relates to a powder material metering and spreading device, which is a device used on a powder material spreading vehicle / machine. The powder material spreading vehicle / machine is mainly used in asphalt pavement regeneration, soil solidification and improvement, pavement stabilization and binder spreading between soil layers. Background technique [0002] The function of the powder material spreading vehicle / machine is to evenly spread the powdery bonding material on the road surface according to the required spreading width and the set spreading amount, and then mix with other materials on the road surface to regenerate the road surface and solidify the soil with improved effects. [0003] The traditional powder material spreading device uses the conveying mechanism to transport the powder to the spreading roller with a toothed structure, and then spreads it through the spreading roller. The measurement principle of the traditional spre...

Claims

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Application Information

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IPC IPC(8): G01F1/36E01C19/20
CPCG01F1/36E01C19/20
Inventor 李太杰孙建西皇甫建红张新强
Owner DAGANG HLDG GRP CO LTD