CN2489571Y - Circulation separation thresher - Google Patents

Abstract

Prior thresher is low in the grain threshing efficiency, and grains are not fully separated and threshed by men. The utility model relates to a circulation separation thresher which can conduct circulation separation through the automatic sending of the grains which are not fully separated into the threshing area. The thresher consists of a frame, a shell, a motor, a threshing mechanism and a circulating mechanism, and is characterized in that the circulating mechanism consists of a feed-back chamber which is positioned on the same side of the shell with the motor and connected with a secondary threshing port, a feed-back chamber which is connected with the discharge port of the feed-back chamber and extends into the feed-back channel in the threshing area which is between a rolling cylinder and a screen, a feed-back blade wheel which is arranged on a rotary shaft in the feed-back chamber and a leather belt wheel and a leather belt which are arranged outside the feed-back chamber and on the same shaft with the blade wheel. The thresher is small in volume, light in weight, simple in operation and high efficient in threshing.

Description

Circulation separates thresher

The utility model relates to a kind of farm machinery, particularly a kind of thresher that can circulate and separate.

Existing thresher is because project organization is unreasonable, and the big Heavy Weight of volume moves difficulty, uses inconvenience; Simultaneously, in threshing course, grain can not separate automatically with slag, needs artificial screening sometimes, can not satisfy the needs of agricultural production.China Patent No. is the utility model patent of ZL00223422.X, discloses a kind of automatic discharge secondary and has separated thresher.Though this thresher can be realized secondary and separate; but it is low by the grain grain yield rate of threshing in the clean grain of its secondary exit; also have the not wheat head of complete threshing, need be sent to threshing zone with artificial method and carry out the separation of threshing once more, therefore can not satisfy the needs of agricultural production fully.

Goal of the invention of the present utility model is intended to overcome the shortcoming of above-mentioned prior art; a kind of threshing that is applicable to wheat and soya bean is provided; it is little to have volume; in light weight; conveniently moving, simple to operate, particularly can be with the grain slag mixture of the clean grain outlet of secondary discharge; automatically deliver to the threshing zone separation threshing that circulates, and do not need the circulation of artificial screening to separate thresher.

Goal of the invention of the present utility model realizes by implementing following technical proposals:

The utility model circulation separates thresher, by frame, be contained in the upper rack front end and have that the slag-drip opening rear end has the casing of charging aperture, the drive motors that is contained in frame upper casing side and separating mechanism and cycling mechanism is formed; Wherein separating mechanism includes: the blower fan that is contained in frame lower, be arranged in the blower fan top and be contained in the roller that casing has the threshing tooth, be contained in the screen cloth below the roller, and be positioned at the clean grain outlet of one-level that screen cloth below is contained in bottom of shell, the blower fan air outlet that is lower than slag-drip opening be positioned at below the screen cloth and the clean grain outlet of one-level above, between screen cloth and bottom of shell, form the air-supply passage that is connected with casing front end slag-drip opening, outside frame, be positioned at the slag-drip opening below, there is the opening that is connected with slag-drip opening to be located at the clean grain outlet of the secondary on the downside position before the casing, the front upper place of roller in casing, near the slag-drip opening place, be provided with the plate washer that forms the gap with the casing inner top surface, motor connects with the roller rotating shaft by output shaft, drive the roller rotating shaft, pass through belt pulley simultaneously, drive blower fan by driving-belt and rotate, thereby become the power source that separating mechanism carries out work; Of the present utility model being characterised in that: also have can will skip plate washer, by the grain slag mixture that the clean grain outlet of secondary is discharged, automatically be sent to the threshing zone separation threshing that circulates, and do not need the cycling mechanism of artificial screening; It is by the material return chamber that is contained in upper rack, exists together casing one side, connects with the clean grain outlet of the secondary of separating mechanism with motor, connect the feed back passage that material return chamber exports, extend into threshing zone between roller and the screen cloth, be contained in the feed back impeller of the band blade in the rotating shaft in the material return chamber, and be contained in outside the material return chamber with the same rotating shaft of impeller on the feed back belt pulley and belt connect form; During thresher work; motor rotates by the belt pulley on it, belt drives blower fan axle; and driven the belt that is sleeved between blower fan shaft upper pulley and material return chamber's feed back belt pulley and rotated; make the feed back impeller carry out threshing to grain ear; and with grain, slag in the material return chamber and do not take off most fringe; deliver to threshing zone between roller and screen cloth through the feed back passage, separation threshing once more circulates.Course of action of the present utility model is: motor drives blower fan respectively, roller and feed back wheel rotation, threshing tooth on the roller carries out threshing send the wheat that takes to from charging aperture, because grain is different with the own wt of slag, in the process that falls naturally, through screen filtration, grain drops out from the clean grain mouth of one-level, slag is under the effect of blower fan wind-force, discharge through slag-drip opening along air-supply passage, in threshing course, because the effect that roller rotates, part grain and slag are crossed baffle plate, fall in the material return chamber this part grain through material return chamber's inlet from the clean grain mouth of secondary with action of gravity, slag and do not take off the threshing and send the threshing zone threshing that circulates to through the feed back passage and separate once more under the effect of feed back impeller of most fringe.

The utility model threshing is effective, and the grain yield rate height do not have breakage, and device volume is little, and is in light weight, simple to operate, improved production efficiency, alleviated labour intensity, and purposes is wide, not only can carry out threshing to wheat, and can carry out threshing to soya bean, the practical value height.

Provide accompanying drawing of the present utility model: Fig. 1 below and be mark among the utility model A-A cross-sectional view figure for side-looking structural representation Fig. 2 of the present utility model for the structural representation Fig. 3 that faces of the present utility model: 1 is frame, and 2 is motor, and 3 is casing, 4 is blower fan, and 5 is roller, and 6 are the threshing tooth, 7 is screen cloth, 8 is slag-drip opening, and 9 is belt pulley, and 10 is driving-belt, 11 is charging aperture, 12 is the clean grain outlet of one-level, and 13 is the clean grain outlet of secondary, and 14 is air outlet, 15 is air-supply passage, 16 is baffle plate, and 17 is material return chamber, and 18 is the feed back passage, 19 is the feed back impeller, 20 is impeller shaft, and 21 is the feed back belt pulley, and 22 is belt.

Below in conjunction with drawings and Examples, the utility model is described in further detail:

The utility model is by frame 1, is contained in frame 1 top, front end and has the casing 3 that slag-drip opening 8, rear end have charging aperture 11, is contained on the frame 1, the drive motors 2 of casing 3 sides, and separating mechanism and cycling mechanism are formed.Separating mechanism includes: the blower fan 4 that is contained in frame 1 bottom, be positioned at blower fan 4 tops, be contained in the roller 5 that has threshing tooth 6 in the casing 3, be contained in the screen cloth 7 below the roller 5, and be positioned at screen cloth 7 belows, be contained in the clean grain outlet 12 of one-level of casing 3 bottoms, be lower than the air outlet 14 of the blower fan 4 of slag-drip opening 8, be positioned at below the screen cloth 7 and the clean grain outlet 12 of one-level above, between screen cloth 7 and casing 3 bottoms, form the air-supply passage 15 that is connected with casing 3 front end slag-drip openings 8, outside frame 1, be positioned at slag-drip opening 8 belows, have and be connected with slag-drip opening 8, opening is located at the clean grain outlet 13 of secondary on the preceding downside position of casing, in casing 3, the front upper place of roller 5, be provided with the plate washer 16 that forms the gap with casing 3 inner top surfaces near slag-drip opening 8 places; Cycling mechanism includes: be contained in frame 1 top, with motor 2 exist together casing 3 one sides, with the clean grain outlet of the secondary of separating mechanism 13 material return chamber that connect 17, connect the feed back passage 18 that material return chamber exports, extend into threshing zone between roller 5 and the screen cloth 7, be contained in the feed back impeller 19 in the rotating shafts 20 in the material return chamber 17, and the feed back belt pulley 21 and the belt 22 that are contained in the outer and impeller 19 same rotating shafts of material return chamber 17 are formed; Motor 2 connects with roller 5 rotating shafts by its output shaft, the drive roller rotates, simultaneously by belt pulley 9, driving blower fan 4 by driving-belt 10 rotates, rotate by belt 22 and the 21 impeller rotating shafts 20 of feed back belt pulley, drive impeller 19 rotations in the material return chamber 17, a part is crossed the grain and the slag of baffle plate 16, send into material return chamber 17 from the clean grain mouth 13 of secondary, carry out threshing through impeller 19 effects, then with this part, slag and do not take off most fringe through feed back passage 18, send the threshing zone threshing that circulates once more to and separate.

Claims (1)

1, a kind of circulation separates thresher, by frame (1), be contained in frame (1) top front end and have that slag-drip opening (8) rear end has the casing (3) of charging aperture (11), the drive motors (2) that is contained in frame (1) upper casing side and separating mechanism and cycling mechanism is formed; Wherein separating mechanism includes: the blower fan (4) that is contained in frame (1) bottom, be arranged in blower fan (4) top and be contained in the roller (5) that casing (3) has threshing tooth (6), be contained in the following screen cloth (7) of roller (5), and be positioned at below the screen cloth (7), be contained in the clean grain outlet of one-level (12) of casing (3) bottom, the blower fan air outlet (14) that is lower than slag-drip opening (8) be positioned at below the screen cloth (7) and the clean grain outlet of one-level (12) above, between screen cloth (7) is bottom casing (3), form the air-supply passage (15) that is connected with casing (3) front end slag-drip opening (8), outside frame (1), be positioned at slag-drip opening (8) below, the clean grain of secondary that has the opening that is connected with slag-drip opening (8) to be located on the preceding downside of casing (3) position exports (13), the front upper place of roller (5) in casing (3), locate near slag-drip opening (8), be provided with the plate washer (16) that forms the gap with casing (3) inner top surface, motor connects with roller (5) rotating shaft by output shaft, drive roller (5) rotating shaft, simultaneously by belt pulley (9), drive blower fan (4) by driving-belt (10) and rotate, thereby become the power source that separating mechanism carries out work; It is characterized in that: also have can will skip plate washer (16), by the grain slag mixture that the clean grain outlet of secondary (12) is discharged, automatically be sent to the threshing zone separation threshing that circulates, and do not need the cycling mechanism of artificial screening; This mechanism is by the material return chamber (17) that is contained in frame (1) top, exists together casing (3) one sides, connects with the clean grain outlet of the secondary of separating mechanism (12) with motor (2); connect the feed back passage (18) that material return chamber (17) exported, extend into threshing zone between roller (5) and the screen cloth (7); be contained in the feed back impeller (19) of the band blade in the interior rotating shaft of material return chamber (17) (20), and the feed back belt pulley (21) and the connecting belt (22) thereof that are contained in the outer and same rotating shaft of impeller (19) of material return chamber (17) are formed.

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