Vibration sorting screen

A cleaning screen and cleaning technology, which is applied in the direction of filter screen, solid separation, grille, etc., can solve the problem of uneven distribution of materials in the axial direction, and achieve the effect of strong adaptability, small cleaning loss and high cleanliness

Inactive Publication Date: 2006-08-16
JIANGSU UNIV
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Problems solved by technology

[0004] The invention overcomes the shortcomings caused by the same structure and size of the same layer of screen surface in the existing cleaning device, and solves the problem of axial distribution of prolapsed matter under the concave plate in the threshing device and longitudinal screen surface in the cleaning chamber. Provide a vibration cleaning device suitable for a variety of crop harvesting machinery

Method used

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Embodiment Construction

[0012] A vibrating cleaning screen of the present invention comprises a cleaning screen frame 1, a shaking plate 2, a front shaft 3, an upper screen 4, a lower screen 5, an eccentric block 6, a driving shaft 7, a slide plate 8 and a tail screen 9. Shaking plate 2, upper sieve 4, lower sieve 5 and tail sieve 9 are installed on the cleaning screen frame 1, such as figure 1 shown. The shaking plate 2 is composed of three different corrugated plates. The corrugated plate 2c near the feeding entrance has a corrugated angle 10° larger than that of the middle 2b. The corrugated angle of the third plate 2a is 90°. When cleaning rice, the upper sieve 4 uses The front weaving screen 4a, the rear fish scale screen 4c structure, the lower screen is a weaving screen 5a, and the tail screen 9 is a fish scale screen, such as figure 2 Shown; when cleaning rapeseed, the upper sieve 4 adopts the front punching sieve 4b, the rear fish-scale sieve 4c structure, the lower sieve is the punching s...

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Abstract

A vibration-type screening sieve with high efficiency and productivity is composed of a sieve frame, a shaker board consisting of three corrugated boards with different corrugated angles, an upper sieve with longitudinally and segmentally combined structure, a middle sieve chosen from braided sieve and punched sieve, a lower sieve which is a scale sieve, a front axle, an active shaft, an eccentrical block and a slide plate.

Description

technical field [0001] The invention relates to a vibrating cleaning sieve for a harvesting machine, which is mainly used for cleaning and screening various crop extracts such as rice, wheat, rapeseed and soybean. Background technique [0002] At present, most harvesting machines adopt vibrating cleaning and screening structures, and the screen surfaces used mainly include scale screens, woven screens and punching screens. Fish scale sieve is currently the most used type of sieve surface in the cleaning system of combine harvesters. The separation ability is not strong. The braided sieve is mainly used for the cleaning of rice, the patent number is CN2643632, the structure is simple, the manufacture is convenient, the price is cheap, and the pushing effect on the prolapsed matter on the sieve surface is relatively weak. The perforated sieve is mainly used for seed screening. The patent number is CN2493013. It has a simple structure. The diameter of the sieve hole can be se...

Claims

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Application Information

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IPC IPC(8): A01F12/44B07B1/28B07B1/46
Inventor 李耀明徐立章马朝兴
Owner JIANGSU UNIV
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