CN2553611Y - Light rice thresher without drum and with screen - Google Patents

Abstract

The utility model relates to a light rice thresher without drum and with screen. The thresher frame(1) takes a semi-closed box shape which is welded by angle iron and thin sheet iron and has four supporting feet at the lower part and has front, left and right closing plates at the upper part; the rear part and the top of the box are opened; the closing plate at the bottom is a conical rice receiving hopper(5) which has high circumference and low middle part; a rice outlet(5.1) is positioned at the lowest part of the bottom end of the conical rice receiving hopper(5); the space between a rice baffling cover(2) at the front upward side of the thresher frame and the thresher frame(1) is internally provided with horizontal threshing roller(4); a rice and grass separating sifter(3) surrounded by angle iron is positioned at the downward side of the horizontal threshing roller(4); when being seen at the side view, the rear end of the rice and grass separating sifter is flat and the front end raises upwards to an arc frame and the middle part is welded with a sifter net; the rear end of the rice and grass separating sifter(3) extends out of the thresher frame; the rice and grass separating sifter(3) is connected with a main shaft(4.2) through a drive mechanism. The utility model has the advantages of small volume, light weight, low production cost, convenient use, completing the threshing and separating at once when in work, lightening the physical work, and saving labor, which is suitable for the threshing and separating of rice and wheat, in particular suitable for serving as the rice and wheat thresher in mountain ridge area and mountain area.

Description

There is not the light-duty rice thresher of bucket band sieve

Technical field

The utility model belongs to agricultural rice thresher.Be particularly related to and do not have the light-duty rice thresher of bucket band sieve.

Background technology

The rice thresher that generally uses includes the Power Drive Unit of grain-containing barrel, threshing cylinder and threshing cylinder now, threshing cylinder is among the grain-containing barrel, it above the grain-containing barrel semi-enclosed canopy cover, complete machine overwhelming majority member is a wooden structure, this structural volume is big, threshing efficiency is low, do not have grain-straw separating device, must rely on during use and manually go to draw a barrel interior millet straw, labour intensity is big.The grain-straw separating device that automatic rice thresher with separated rice from straw after improving increases all is to utilize the conveying that has the grid screen tray to bring realization.Seem complicated on its structure again, and increased complete machine weight, move the resettlement transportation to rice thresher and brought difficulty, design has conveyer belt in the grain-straw separating device of this machine simultaneously, resistance is bigger in the actual use, and consumption of power is many, and is easy to the careless broken belt of card, the fault rate height has increased operation and maintenance cost to the user.In order to alleviate complete machine weight, Chinese patent application 95237823.X discloses a kind of " not having the light-duty rice thresher of bucket band sieve ", its design feature is to have cancelled grain-containing barrel, and gear is housed in the cylinder two ends, eccentric shaft also is housed on one of them termination, be engaged with gear wheel below pinion, gear wheel is contained on the support through gear shaft, and eccentric shaft is connected vibratory sieve through shaker shoe pitman with bearing pin.This rice thresher is only considered to cancel grain-containing barrel and is gone to reduce complete machine weight, and the grain-straw separating device structure is still very complicated, and threshing unit still uses the low common threshing cylinder of threshing efficiency.

Summary of the invention

The purpose of this utility model is to provide that a kind of volume is little, in light weight, simple in structure, through threshing, and can realize that the no bucket band that the paddy dogstail separates automatically sieves light-duty rice thresher.

To achieve these goals, a kind of nothing bucket band that the utility model proposes sieves light-duty rice thresher, comprises the Power Drive Unit of frame, grain-blocking cover, millet straw bolter, threshing cylinder and threshing cylinder.Described grain-blocking cover is semiclosed shape, cover paulin soft fibre fabric envelope system.Frame is that a bottom that is welded into angle bar and sheet iron is stretched and had four feets, the first half to be the semiclosed box shape of preceding, left and right and bottom sealing plate, this casing rear portion and open-top, the shrouding of bottom is one and is taper low between peripheral senior middle school and connects the paddy funnel, go out the cereal mouth and be positioned at taper and connect paddy funnel bottom lowest part, also have millet baffle going out cereal mouth place; Described grain-blocking cover is semiclosed shape, cover paulin soft fibre fabric envelope system.Threshing cylinder laterally is installed in the space between the front upper place of frame grain-blocking cover and frame, and the tooth on the channel-section steel tooth bar in the threshing cylinder is asymmetric " U " shape of falling, that is: " U " one side the shape tooth wherein be crescent moon tulwar shape, another side is relatively for very precipitous; The below, the taper that are positioned at threshing cylinder connect the top of paddy funnel, there is one to surround rectangle, the side-looking rear end is straight, front end is tilted upward embowment framework and the middle millet straw bolter that is welded with screen cloth with angle steel, the rear end part of millet straw bolter stretches out frame, four both sides symmetric support points are arranged at the edge of millet straw bolter framework, these strong points are suspended on the millet straw bolter in the front and back rotating shaft in the rice thresher frame by four rocking arm suspension rods, a termination rocking arm of rotating shaft wherein, a connecting rod links together the other end fulcrum of rocking arm and the eccentric shaft on the rocking bar; This rocking bar) an end main shaft drives of stretching out by threshing cylinder; The other end of main shaft connects Power Drive Unit.

Because the utility model has been cancelled grain-containing barrel, complete machine causes with metal material, is wooden structure and the grain-containing barrel rice thresher is arranged that volume is much smaller than the complete machine overwhelming majority member that generally uses now, and weight also alleviates 40% simultaneously.The threshing cylinder of the utility model design improves the profile of tooth of tooth bar, soon " U " shape tooth one side is wherein made and is crescent moon tulwar shape, another side is relatively for very precipitous, when using this threshing cylinder, this tooth impacts spike of rice has the slip of cutting as cutter to hit the effect of cutting in the process, can like a cork the paddy in the spike of rice be hit and cut out, can not pull out putting in order the strain spike of rice.Reduced the broken spike of rice millet straw of Cheng Guzhong.Can reduce the broken spike of rice millet straw 70% of Cheng Guzhong in actual the use compared to existing technology, produce paddy efficient and also improved 20%.The utility model has also designed grain-straw separating device, does not need during use manually to go to draw a barrel interior millet straw, has alleviated labour intensity.This shows that use to the utlity model has that volume is little, in light weight, cost is low, easy to use, the threshing screening is once finished during work, alleviates manual labor, saves the advantage of manpower.Be suitable for use as paddy and wheat threshing and screening, be particularly suitable for as mountain terrain, mountain area beat rice, facility thresh wheat.

Description of drawings

Fig. 1 is a profile schematic diagram of the present utility model;

Fig. 2 is a theory structure schematic diagram of the present utility model.

In above-mentioned figure: 1 frame; 2 grain-blocking covers; 3 millet straw bolters; 3.1 symmetric support point; 3.2 symmetric support point; 4 threshing cylinders; 4.1 asymmetric " U " shape tooth; 4.2 main shaft; 4.3 Power Drive Unit; 5 tapers connect the paddy funnel; 5.1 go out the cereal mouth; 6 millet baffles; The control lever of 7 band handles; 8 rocking arm suspension rods; 9 rotating shafts; 10 rotating shafts; 11 rocking arms; 11.1 fulcrum; 12 connecting rods; 13 rocking bars; 13.1 eccentric shaft.

Specific embodiment

The utility model is described in more detail with concrete embodiment below in conjunction with accompanying drawing:

Present embodiment is the light-duty rice thresher of a kind of nothing bucket band sieve, comprises the Power Drive Unit of frame 1, grain-blocking cover 2, millet straw bolter 3, threshing cylinder 4 and threshing cylinder, and described grain-blocking cover 2 is semiclosed shape, cover paulin soft fibre fabric envelope system.Frame 1 is that a bottom that is welded into angle bar and sheet iron is stretched and had four feets, the first half to be the semiclosed box shape of preceding, left and right and bottom sealing plate, this casing rear portion and open-top, the shrouding of bottom is one and is taper low between peripheral senior middle school and connects paddy funnel 5, go out cereal mouth 5.1 and be positioned at taper and connect paddy funnel 5 bottom lowest parts, also have millet baffle 6 going out cereal mouth 5.1 places; The minimum altitude of above-mentioned millet baffle 6 is liftoff to be 500mm, and this millet baffle 6 is connected on the control lever 7 of a band handle.Threshing cylinder 4 laterally is installed in the space between the front upper place of frame grain-blocking cover 2 and frame 1, tooth 4.1 on the channel-section steel tooth bar in the threshing cylinder 4 is asymmetric " U " shape, that is: " U " shape tooth one side wherein is crescent moon tulwar shape, and another side is relatively for very precipitous; Be positioned at the below of threshing cylinder 4, taper connects the top of paddy funnel 5, there is one to surround rectangle with angle steel, the side-looking rear end is straight, front end the tilt upward framework and the middle millet straw bolter 3 that is welded with screen cloth of embowment, the rear end part of millet straw bolter 3 stretches out frame, at the edge of millet straw bolter framework four both sides symmetric support points 3.1 are arranged, 3.2, these strong points are suspended on rotating shaft 9 in the rice thresher frame 2 by four rocking arm suspension rods 8 with the millet straw bolter, on 10, one termination rocking arm 11 of its shaft 9, connecting rod 12 links together the other end fulcrum 11.1 of rocking arm 11 and the eccentric shaft 13.1 on the rocking bar 13; This rocking bar 13 is driven by the end main shaft 4.2 that threshing cylinder 4 stretches out; The other end of main shaft 4.2 connects Power Drive Unit 4.3.The Power Drive Unit 4.3 of present embodiment is that the gasoline engine of a 3kW passes through belt pulley drive shaft 4.2.

Present embodiment is work like this: the gasoline engine of 3kW is by 4.2 rotations of belt pulley drive shaft, and main shaft 4.2 drives threshing cylinder 4 and realizes threshing.Main shaft 4.2 other ends are done low-angle torsional movement through the toggle traction rotating shaft 9 that rocking bar 13, connecting rod 12, rocking arm 11 constitute, and rotating shaft 9 allows millet straw bolter 3 realize the screening campaign that millet straw separates by four rocking arm suspension rods 8.The broken spike of rice millet straw that screening is come out is discharged from the rear end of frame 1, and the paddy that screening is come out connects paddy funnel 5, goes out 5.1 discharges of cereal mouth along taper, and the control lever 7 of the millet baffle 6 at this place and band handle is the row of control paddy conveniently.

Claims (3)

1, the light-duty rice thresher of a kind of nothing bucket band sieve, comprise frame (1), grain-blocking cover (2), millet straw bolter (3), the Power Drive Unit of threshing cylinder (4) and threshing cylinder, it is characterized in that: frame (1) is that a bottom that is welded into angle bar and sheet iron is stretched four feets are arranged, before the first half is, a left side, the semiclosed box shape of the right side and bottom sealing plate, this casing rear portion and open-top, the shrouding of bottom is one and is taper low between peripheral senior middle school and connects paddy funnel (5), go out cereal mouth (5.1) and be positioned at taper and connect paddy funnel (5) bottom lowest part, locate millet baffle (6) in addition going out cereal mouth (5.1); Threshing cylinder (4) is laterally installed in the front upper place grain-blocking cover (2) and the space between the frame (1) that are positioned at frame, tooth (4.1) on the channel-section steel tooth bar in the threshing cylinder (4) is asymmetric " U " shape, that is: " U " shape tooth one side wherein is crescent moon tulwar shape, and another side is relatively for very precipitous; Be positioned at the below of threshing cylinder (4), taper connects the top of paddy funnel (5), there is one to surround rectangle with angle steel, the side-looking rear end is straight, front end the tilt upward framework and the middle millet straw bolter (3) that is welded with screen cloth of embowment, the rear end part of millet straw bolter (3) stretches out frame, at the edge of millet straw bolter framework four both sides symmetric support points (3.1) are arranged, (3.2), these strong points are suspended on rotating shaft (9) in the rice thresher frame (2) by four rocking arm suspension rods (8) with the millet straw bolter, (10) on, the one termination rocking arm (11) of its shaft (9), connecting rod (12) links together the other end fulcrum (11.1) of rocking arm (11) and the eccentric shaft (13.1) on the rocking bar (13); This rocking bar (13) is driven by the end main shaft (4.2) that threshing cylinder (4) stretches out; The other end of main shaft (4.2) connects Power Drive Unit (4.3).

2, the light-duty rice thresher of nothing bucket band sieve according to claim 1, its feature also is: described grain-blocking cover (2) is semiclosed shape, cover paulin soft fibre fabric envelope system.

3, the light-duty rice thresher of nothing bucket band sieve according to claim 1, its feature also is: taper meets the liftoff 500mm of being of minimum altitude of the millet baffle (6) of paddy funnel (5) in the described frame, and this millet baffle (6) is connected on the control lever (7) of a band handle.