CN204560287U - The friction speed shelling separator of one grow wheat - Google Patents

Abstract

A different speed husking and separating device for wheat, comprising a blower, a frame, a first threshing chamber and a second threshing chamber, the first threshing chamber is provided with a grate plate and two closed-loop conveying chains; the second threshing chamber includes a cylinder And the rotating shaft set in the cylinder, the circumference of the rotating shaft is provided with nail teeth, the lower part of the cylinder is provided with through holes, and the position corresponding to the beginning end of the closed-loop conveying chain is provided with an inclined feeding plate on the frame; it also includes a screening plate, an excitation The sieve plate is composed of the first sieve plate and the second sieve plate; the blower communicates with one end of the space between the grate plate and the sieve plate through the ventilation duct, and the space between the grate plate and the sieve plate The other end is connected with a dust removal bag through a dust removal pipe. In this device, the first threshing chamber simulates the rolling and threshing work on the traditional field; the materials entering the second threshing chamber are directly acted on by the nail teeth on the rotating shaft, and the wheat grains are separated from the loose stalks, and the stalks are crushed. The nail teeth drive the movement and discharge through the discharge port of the cylinder.

Description

A kind of different speed shelling and separating device for wheat

technical field

The utility model relates to a threshing equipment of agricultural machinery, in particular to a different speed husking and separation device for wheat.

Background technique

With the continuous development of the social economy, the existing common agricultural machinery and tools are also developing toward mechanization and automation. With the continuous increase of wheat production, wheat threshing has become a problem that is placed in front of people. In some areas where combine harvesters cannot be used, threshing of wheat after harvest is still carried out by rolling on the field, which is labor-intensive and poor in operation quality, resulting in a high rate of wheat breakage and impurity content, which affects the quality of finished wheat products; Furthermore, if there is rainy weather during the threshing process, it is easy to reduce the quality of wheat due to germination, which seriously restricts the industrialization of wheat. Therefore, the researchers set their sights on small, independent wheat threshers in order to obtain threshers with a lower breakage rate.

Utility model content

The purpose of the utility model is to provide a different-speed husking and separation device for wheat, which uses two threshing chambers with different threshing speeds to completely separate wheat grains from glumes and stems, and can reduce the damage rate of wheat grains.

The technical solution adopted by the utility model for achieving the above purpose is: a different speed husking and separating device for wheat, which includes a blower, a frame, a first threshing chamber and a second threshing chamber, the first threshing chamber and the second threshing chamber The threshing chambers are staggeredly arranged on the frame and have different threshing speeds. The first threshing chamber is equipped with two closed-loop conveyor chains and a grate plate located below the closed-loop conveyor chains. There are multiple pressure bars vertically connected between the two closed-loop conveyor chains. There is a gap between the grate plate and the pressure rod above it for the passage of wheat straw; the second threshing chamber includes a cylinder fixed on the frame and a rotating shaft coaxially arranged inside the cylinder, and the circumference of the rotating shaft is provided with a plurality of rows in a spiral shape. The bottom of the cylinder is provided with a through hole for discharging wheat grains, the feeding port of the cylinder is set corresponding to the end of the closed-loop conveying chain, and the position corresponding to the beginning of the closed-loop conveying chain is provided with an inclined Feeding plate; the device also includes a screening plate used to screen grate plates and cylinder output wheat grains, a vibration exciter connected with the screening plate and a grain collection bin for collecting the output wheat grains of the screening plate. The vibrator is fixed on the frame through connecting rods. The sieve plate is composed of the first sieve plate correspondingly inclined under the first threshing chamber and the second sieve plate correspondingly inclined under the second threshing chamber. The first sieve plate The lower end of the second sieve plate is connected with the lower end of the second sieve plate; the blower communicates with one end of the space between the grate plate and the sieve plate through the ventilation duct, and the other end of the space between the grate plate and the sieve plate passes through the dust removal pipeline Dust bag attached.

In the utility model, the pitch between the nail teeth in a spiral disk row is the same as the pitch between each nail tooth; the nail teeth are composed of a gear rod and a push rod, and one end of the gear rod is fixedly connected to on the cylinder, and the tangent between the gear rod and the connection point is set vertically, the push rod is obliquely fixed on the other end of the gear rod, and the direction of the angle between the push rod and the gear rod deviates from the direction of movement of the rotating shaft, and the setting of the push rod can Avoid straw getting tangled up on the tines.

The closed-loop conveyor chain is composed of a driving sprocket, a driven sprocket, and a chain arranged on the driving sprocket and the driven sprocket. The device also includes two motors for driving the driving sprocket and the rotating shaft to rotate respectively. .

In this device, the material output from the end of the closed-loop conveying chain enters the cylinder along the tangential direction of the moving shaft, and makes a spiral movement under the action of the nail teeth. The cooperative connection of the two threshing chambers can enhance the threshing ability of the device, prolong the threshing time and reduce the broken rate of wheat grains.

Beneficial effects: (1) The device adopts two threshing chambers with different threshing speeds for husking and separation of wheat. Among them, the first threshing chamber simulates the rolling and threshing work on the traditional field, and uses the chain to drive the movement of the pressure bar to realize the wheat threshing. Preliminary threshing and conveying; the material entering the second threshing chamber is directly acted by the spiral nail teeth on the rotating shaft. Due to the large proportion of wheat grains and good floatability of the stalk, the material is in the process of spiral movement. The wheat grains are separated from the loose stalks and discharged through the through hole in the lower part of the cylinder. The stalks are driven by the nail teeth and discharged through the discharge port of the cylinder.

(2) The material discharged through the grate plate and the through hole in the lower part of the cylinder is cleaned under the action of the blower before the material falls to the grain collection bin, and the chaff and other small light debris entrained in the material are blown out, And through the dust pipe into the dust bag for collection.

(3) A screening plate connected to the vibrator is added above the grain storage bin, and the impurities mixed in the wheat grains are removed by using the air blowing effect of the blower and the shaking action of the screening plate. The air blower communicates with the space above the sieve plate, and the wind force of the air blower blows away light impurities such as chaff and finely divided stalks, and sends them into the dust bag through the dust removal pipeline.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the external view of the first threshing chamber and the second threshing chamber;

Fig. 3 is a schematic cross-sectional view of the cylinder in Fig. 1;

Fig. 4 is a diagram of the positional relationship between the intermediate shaft and the nail teeth of the utility model.

Reference signs: 1, blower, 2, frame, 3, first threshing chamber, 4, second threshing chamber, 5, inclined feeding plate, 6, closed-loop conveying chain, 60, driving sprocket, 61, driven Sprocket, 62, chain, 7, grate plate, 8, pressure bar, 9, cylinder, 10, rotating shaft, 11, through hole, 12, nail teeth, 120, tooth bar, 121, push bar, 13, grain collection bin , 14, exciter, 15, first sieve plate, 16, second sieve plate, 17, ventilation duct, 18, dust removal duct, 19, dust removal bag, 20, connecting rod.

Detailed ways

A different speed husking and separating device for wheat, as shown in Figure 1, the device includes a blower 1, a frame 2, a first threshing chamber 3, a second threshing chamber 4 and a dust bag 19, as shown in Figure 2, the first A threshing chamber 3 and a second threshing chamber 4 are alternately arranged on the frame 2, and the threshing speeds of the two are different.

Wherein, the first threshing chamber 3 is provided with two closed-loop conveying chains 6 and a grate plate 7 below the closed-loop conveying chain 6, the grate plate 7 is fixed on the frame 2, and there are multiple vertically connected between the two closed-loop conveying chains. There is a gap between the pressing bar 8, the grate plate 7 and the pressing bar 8 above it for allowing the wheat straw to pass through; Rotating shaft 10, as shown in Figure 4, the circumference of rotating shaft 10 is provided with multiple rows of nail teeth 12 in a spiral disk row, the pitch between the nail teeth 12 is the same as the pitch between each nail teeth 12, the cylinder 9 The lower part is provided with a through hole 11 for discharging wheat grains, and the feeding port of the cylinder 9 is set correspondingly to the end of the closed-loop conveying chain 6 for accepting the materials conveyed by the closed-loop conveying chain 6 . An inclined feeding plate 5 is provided on the frame 2 corresponding to the beginning end of the closed-loop conveying chain 6 . Closed-loop conveying chain 6 is made up of driving sprocket 60, driven sprocket 61, the chain 62 that ring is located on driving sprocket 60 and driven sprocket 61, and this device also includes and is respectively used to drive driving sprocket 60 and rotating shaft 10 Two motors that rotate, in the course of work, the rotational speeds of drive sprocket 60 and rotating shaft 10 are different, realize the different speed threshing of two threshing chambers, make the grain on the wheat straw be removed thoroughly.

As shown in Figure 1, the device also includes a sieve plate for screening the grate plate 7 and the cylinder 9 output wheat grains, a vibration exciter 14 connected with the sieve plate, and a sieve plate for collecting the output wheat grains of the sieve plate. The grain collection bin 13, the vibrator 14 is fixed on the frame 2 through the connecting rod 20, and the sieve plate is arranged on the second threshing chamber 4 by the first sieve plate 15 which is correspondingly inclined and arranged under the first threshing chamber 3. The bottom of the second sieve plate 16 is formed, and the low end of the first sieve plate 15 is connected with the low end of the second sieve plate 16; the air blower 1 passes through the air duct 17 and the space between the grate plate 7 and the sieve plate. One end is connected, and the other end of the space between the grate plate 7 and the screening plate is connected with a dust removal bag 19 through a dust removal pipe 18, and the materials discharged through the grate plate 7 and the through hole 11 on the cylinder 9, under the action of the blower 1, Impurities entrained in the material are blown out and collected by the dust bag 19.

The working principle of the device is: the wheat straw fed through the inclined feeding plate 5 is brought into the first threshing chamber 3 by the pressure rod 8 set on the closed-loop conveying chain 6, and is crushed between the pressure rod 8 and the grate plate 7. and the detached wheat grains are discharged through the grate hole on the grate plate 7, and the remaining materials continue to move together with the pressure rod 8, and are sent into the cylinder 9 when they run to the end of the closed-loop conveying chain 6, and the cylinder The role of the rotating shaft 10 moving in 9, the nail teeth 12 on the rotating shaft 10 drive the remaining materials such as wheat straw to do a spiral movement, the wheat grains entrained in the wheat straw are pulled out, and the remaining wheat grains on the wheat straw that have not been removed by the pressing rod 8 , under the action between the moving spike 12 and the stationary cylinder 9, it is threshed again; and the spike 12 is composed of a toothed rod 120 and a push rod 121, and one end of the toothed rod 120 is fixedly connected to the cylinder 9, And the gear bar 120 is vertically arranged with the tangent of the connection point, the push rod 121 is obliquely fixed on the other end of the gear rod 120, the direction of the angle between the push rod 121 and the gear rod 120 deviates from the direction of motion of the rotating shaft 10, wheat straw, broken stems The stalk moves with the spikes 12 and is discharged out of the discharge opening of the cylinder 9 . The material discharged through the grate plate 7 and the through hole 11 on the cylinder 9 is screened again by the screening plate, and finally falls into the grain collection bin 13 .

Claims (4)

1. A different speed husking and separating device for wheat, characterized in that: the device includes a blower (1), a frame (2), a first threshing chamber (3) and a second threshing chamber (4), the first threshing chamber The chamber (3) and the second threshing chamber (4) are arranged alternately on the frame (2) with different threshing speeds. The first threshing chamber (3) is equipped with two closed-loop conveyor chains (6) and the closed-loop conveyor chain ( 6) The grate plate (7) below is vertically connected with a plurality of pressing rods (8) between the two closed-loop conveying chains, and there is a gap between the grate plate (7) and the pressing rods (8) above it for the passage of wheat straw. gap; the second threshing chamber (4) includes a cylinder (9) fixed on the frame (2) and a rotating shaft (10) coaxially arranged in the cylinder (9), and the circumference of the rotating shaft (10) is provided with multiple rows The nail teeth (12) in a spiral disk, the lower part of the cylinder (9) is provided with a through hole (11) for discharging wheat grains, the inlet of the cylinder (9) and the end of the closed-loop conveying chain (6) Corresponding to the undertaking setting, the position corresponding to the beginning of the closed-loop conveying chain (6) on the frame (2) is provided with an inclined feeding plate (5); The device also includes a sieve plate for screening the wheat grains output from the grate plate (7) and the cylinder (9), a vibrator (14) connected with the sieve plate, and a vibrator (14) for collecting the output grains of the sieve plate. The grain collection bin (13), the vibrator (14) is fixed on the frame (2) through the connecting rod (20), and the sieve plate is composed of the first sieve plate ( 15) It is composed of the second sieve plate (16) correspondingly inclined below the second threshing chamber (4), and the lower end of the first sieve plate (15) is connected with the lower end of the second sieve plate (16); The blower (1) mentioned above communicates with one end of the space between the grate plate (7) and the screening plate through the ventilation duct (17), and the other end of the space between the grate plate (7) and the screening plate passes through the dust removal duct (18) A dust bag (19) is connected. 2. A different speed shelling and separating device for wheat according to claim 1, characterized in that: the pitch between the nail teeth (12) in the spiral disk array and the teeth between the nail teeth (12) The distances are the same. 3. A different-speed shelling and separating device for wheat according to claim 1 or 2, characterized in that: the nail teeth (12) are composed of a toothed rod (120) and a push rod (121), and the toothed rod One end of (120) is fixedly connected to the cylinder (9), and the gear rod (120) is set perpendicular to the tangent of the connection point, and the push rod (121) is obliquely fixed on the other end of the gear rod (120), and the push rod ( 121) and the gear rod (120) are facing away from the direction of motion of the rotating shaft (10). 4. A different-speed shelling and separating device for wheat according to claim 1, characterized in that: the closed-loop conveying chain (6) consists of a driving sprocket (60), a driven sprocket (61), a ring The chain (62) arranged on the driving sprocket (60) and the driven sprocket (61) is composed, and the device also includes two motors for driving the driving sprocket (60) and the rotating shaft (10) to rotate respectively.