Material screening mechanism
A material sieve and power mechanism technology, which is applied in the direction of filter screen, solid separation, grille, etc., can solve the problems of high failure rate, accumulation blockage, low work efficiency, etc.
Inactive Publication Date: 2009-04-01
熊启勋
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Problems solved by technology
[0002] The existing material screening mechanism, such as the screening mechanism used for mechanical threshing of agricultural crops, and the screening mechanism of stone, coal and other materials, mostly adopts a screen structure, and the screen is easy to be blocked by material accumulation, with high failure rate and high work efficiency. Low
For example, the Chinese patent No. 98230262.2 provides a portable rice thresher. The threshing cylinder can be driven by manpower through the foot pedal to rotate and thresh. The lower side of the cylinder is provided with a double-layer mesh screen for separating grains and broken grass, which is replaced by baskets or pockets. Instead of the traditional mixing bucket, its screening structure is complicated, grains are easy to accumulate and block on the mesh screen, and the failure rate is high
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[0012] Such as Figure 1 to Figure 4 As shown, an embodiment of the present invention is applied to a human thresher, and other structures adopt the structure of an existing foot-operated human thresher, and its sieve body 1 includes a fixed sieve group 2 and a Movable sieve set 3, the fixed sieve set 2 includes several comb-shaped sieves 4, the movable sieve set 3 includes several comb-shaped sieves 4, the fixed The sieves 4 of the type sieve set 2 and the sieves 4 of the movable sieve set 3 are arranged alternately, and a sieve is provided between adjacent sieves 4; The mechanism is connected, and the power mechanism can drive the movable sieve plate group 3 to reciprocate back and forth; the upper end of the sieve plate 4 is provided with several feeding teeth 5, and the tooth tips of the feeding teeth 5 extend in one direction. The principle is: when the present invention is applied to a threshing machine, one machine can be used for multiple purposes. The power drives th...
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The invention provides a material screening mechanism which comprises a screen body (1). The material screening mechanism is characterized in that the screen body (1) comprises a fixed sieving slice group (2) and a movable sieving slice group (3). Sieving slices (4) of the two sieving slice groups (2, 3) are arranged phase to phase. The upper end of the body of every sieving slice (4) is provided with a plurality of feed delivery gears (5) which extend unidirectionally. The material screening mechanism is applied to the screening of threshed crops and the screening of materials of stones, coals, etc. One embodiment of the mechanism is applied to a foot-pedal threshing manpower thresher, which is best applied to farmers with individual household operation; the thresher has simple structure and is less than 40kg. One person can move the mechanism in different fields. With the function of automatic discharging fodder on the deck, the body of the sieve avoids the phenomena of grains accumulation and screen cuts blockage. Therefore, with low failure rate, the mechanism can be maintained conveniently. The material screening mechanism also has the advantages of labour saving, high efficiency and environmental protection. Operators can operate the machine only by applying the force used for trampling a bicycle. The material screening mechanism can run continuously for 8h with the threshing being about 1,000kg.
Description
technical field [0001] The invention relates to a material screening mechanism. Background technique [0002] The existing material screening mechanism, such as the screening mechanism used for mechanical threshing of agricultural crops, and the screening mechanism of stone, coal and other materials, mostly adopts a screen structure, and the screen is easy to be blocked by material accumulation, with high failure rate and high work efficiency. Low. For example, the Chinese patent No. 98230262.2 provides a portable rice thresher. The threshing cylinder can be driven by manpower through the foot pedal to rotate and thresh. The lower side of the cylinder is provided with a double-layer mesh screen for separating grains and broken grass, which is replaced by baskets or pockets. Instead of the traditional mixing bucket, its screening structure is complicated, grains are easy to accumulate and block on the mesh screen, and the failure rate is high. Contents of the invention ...
Claims
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IPC IPC(8): B07B1/16B07B1/42B07B1/46
Inventor 熊启勋熊鹏张强光文晋杨仕宽
Owner 熊启勋