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Soil grinding and screening device

A screening device and soil technology, which is applied in the field of soil rolling and screening devices, can solve the problems of relying on manual work, harming human health, and low degree of automation, so as to improve screening efficiency, improve stress conditions, and run smoothly Effect

Inactive Publication Date: 2013-01-30
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with rigid rotary impact crushing and rigid rolling crushing, these methods can greatly reduce the damage to the particle size distribution of natural soil, but there are still some defects: 1) The degree of automation is very low, basically relying on manual work ;2) There is a lot of dust and noise, which is harmful to human health

Method used

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Experimental program
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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with specific embodiments and drawings, which are explanations of the present invention rather than limitations.

[0028] see figure 1 , figure 2 , a soil rolling and screening device, characterized in that,

[0029] It includes a rolling motor 1, which drives the turntable 7 to rotate through a belt transmission mechanism. The turntable 7 is connected to a gear 15 through a connecting rod 8. The gear 15 is arranged on a rack 16 fixed on the worktable, and at the same time it is connected with the slider 14. The racks at the bottom are engaged, and the slide block 14 is also provided with a chute, and the rotating shaft 10 of the rolling roller 11 is arranged in the chute, and the rolling roller 11 can move horizontally along the groove surface in the rolling groove 12; The pressure groove 12 also has an opening that communicates with the cloth bag 20 arranged below it, and a movable block...

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Abstract

The invention discloses a soil grinding and screening device, which comprises a transmission device, a grinding mechanism, a screening system and a worktable, wherein the power of the transmission device is provided by a grinding motor; the grinding motor drives a rotary plate to rotate through a belt transmission mechanism; a connecting rod drives a stroke doubling mechanism to increase a grinding stroke, and a slider horizontally moves in a reciprocating manner; when grinding, a grinding rotary drum can vertically move freely along a chute of the slider along with rugged surfaces of soil, and motion smoothness is guaranteed as much as possible; the grinding mechanism grinds the soil to be crushed by horizontal reciprocating motion of the grinding rotary drum in a grinding tank, the motion stroke of the rotary drum is guaranteed to the maximum degree, and the soil is flexibly ground; and the soil which meets the crushing requirement is automatically screened by the screening system in a low-noise and dust-free manner.

Description

technical field [0001] The invention belongs to the technical field of rock and soil testing, and relates to a soil rolling and screening device. Background technique [0002] Since K. Terzaghi put forward the effective stress principle in 1923, modern soil mechanics has made great progress. In 1963, Roscoe proposed the famous Cambridge model for remodeling clay, which pushed the research of soil mechanics to a new climax, and also opened the door of modern soil mechanics research. Soil has a unique material and structural composition, and the particle size gradation of soil has a great influence on its physical and mechanical properties. Although various forms of soil crushing devices have been designed, most of them are aimed at crushing the surface soil of agricultural cultivated land or crushing industrial soil. Rolling and crushing, these instruments completely destroy the particle size distribution of the soil and the natural composition of the soil in the process of...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 侯天顺闫锋欣蒲应俊王正中杨秀娟
Owner NORTHWEST A & F UNIV
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