CN207604227U - A kind of sheller unit for highland barley fringe head - Google Patents

Abstract

The utility model relates to the field of agricultural machinery and equipment, in particular to a threshing device for ear heads of highland barley. It includes a vertically arranged rotating shaft, the lower end of the rotating shaft is rotated and arranged on the frame, the middle part of the rotating shaft is coaxially provided with a roller, and the outer periphery of the roller is provided with a fixed cylinder whose lower end is fixedly connected with the frame. A friction threshing gap is formed between the inner peripheral surfaces of the The utility model has the advantages of simple structure and low cost, and aims at the characteristics of ultra-low grass-to-grain ratio highland barley, and has the characteristics of low broken rate and high product quality.

Description

A kind of threshing device for highland barley ears

technical field

The utility model relates to the field of agricultural machinery and equipment, in particular to a threshing device for ear heads of highland barley.

Background technique

Highland barley is an important food crop, mainly distributed in my country's Tibet, Qinghai, Ganzi and Aba in Sichuan and other regions. Highland barley is widely used, its grain is the main grain of local residents, and barley stalk is the main feed for local people. Since the awn and grass cannot be separated when the rice-wheat combine harvester is used, it cannot meet the needs of farmers for double harvest of grain and grass. Ear heads are threshed.

Because the head of this kind of highland barley has an ultra-low grass-to-grain ratio, the rice-wheat threshing equipment in the prior art seems cumbersome, inefficient, wasteful of energy and high in price, and its own functions of removing stalks and large impurities can only become The decoration seriously restricted the planting and production of highland barley.

Utility model content

The utility model aims to provide a threshing device with simple structure, low cost and aiming at the characteristics of ultra-low grass-to-grain ratio and highland barley ears.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a threshing device for highland barley ears, which is characterized in that: it includes a frame and a rotating shaft vertically rotatably arranged on the frame, and the lower end of the rotating shaft rotates It is arranged on the frame, and a drum is coaxially arranged on the rotating shaft. The outer surface of the drum is provided with a fixed cylinder fixedly connected with the frame, and a frictional threshing gap is formed between the outer peripheral surface of the drum and the inner peripheral surface of the fixed cylinder.

Preferably, both the roller and the fixed cylinder are tapered with the big end facing the frame, and the taper of the roller is larger than that of the fixed cylinder.

Preferably, the width of the upper end of the friction threshing gap is 10-20 mm, and the width of the lower end is 5-10 mm.

Preferably, spiral protrusions for assisting threshing are provided on the outer peripheral surface of the drum.

Preferably, a highland barley ear conveyor belt is provided above the friction threshing gap, and a highland barley ear guide cone for evenly feeding the highland barley ears on the highland barley ear conveyor belt toward the friction threshing gap is arranged coaxially on the top of the drum on the rotating shaft. .

Preferably, the threshing device also includes a repeated threshing mechanism for screening and threshing the highland barley ears that have not yet been threshed after passing through the friction threshing gap. Moving plate, highland barley ear collection box and conveying equipment, the sieve plate is connected with the lower end of the fixed cylinder along the circumferential direction, and the ejection guide plate is arranged on the inner peripheral surface of the fixed cylinder and is used to remove the ejection falling from the friction threshing gap Guide the flow toward the middle of the sieve plate. The exudate moving plate is arranged on the rotating shaft and located above the sieve plate. The exudate moving plate will flatten the exudates gathered in the middle of the sieve plate during the rotation of the rotating shaft and release them. The ear of highland barley that has not been threshed in the material is moved to the outer edge of the sieve plate, and an opening for the ear of highland barley to pass through is provided on the outer edge of the sieve plate. The end is arranged in the highland barley ear collection box, and the discharge end is arranged above the friction threshing gap.

Preferably, a cleaning mechanism is arranged below the sieve plate on the frame, and the cleaning mechanism includes a negative pressure fan, a collection cone bucket and a highland barley grain discharge pipe arranged at the lower end of the collection cone bucket. The air inlet pipe of the fan is connected with the highland barley grain discharge pipe, and the air outlet pipe is set as a small miscellaneous discharge pipe.

Preferably, the conveying equipment includes a belt conveyor, and a plurality of baffles are vertically arranged on the conveyor belt of the belt conveyor at intervals.

Preferably, the rotating shaft is driven by a driving motor.

Preferably, both the roller and the fixed cylinder are made of rubber materials.

Beneficial effect

The utility model is simple in structure, easy to manufacture, low in cost, strong in functionality, high in mechanization and automation, can efficiently complete the threshing of ear heads of highland barley with ultra-low grass-to-grain ratio, and is beneficial to large-area planting, popularization and production of highland barley.

The utility model performs friction threshing through the friction threshing gap between the drum and the fixed cylinder during the rotation of the drum, which can reduce the problem of high crushing rate caused by beating or rolling threshing in the prior art. In the preferred embodiment of the utility model, there is also a repeated threshing mechanism for screening and threshing the highland barley ears that have not yet been threshed after passing through the friction threshing gap, so that the broken ears and small ears can be repeatedly passed through the drum and fixed. The friction between the cylinders is used for threshing, so that the loss rate of kernels is low. And because the setting of the repeated threshing mechanism can make the friction threshing gap appropriately wide, it is more conducive to reducing the broken rate and improving the quality of highland barley grains.

Description of drawings

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

Marks in the figure: 1, rotating shaft, 2, frame, 3, roller, 4, fixed cylinder, 5, friction threshing gap, 6, sieve plate, 601, opening, 7, ejection guide plate, 8, ejection toggle Plate, 9, barley ear collection box, 10, conveying equipment, 1001, conveyor belt, 1002, baffle plate, 11, negative pressure fan, 1101, small miscellaneous discharge pipe, 12, aggregate cone bucket, 13, highland barley grain discharge Pipe, 14, highland barley ear conveyor belt, 15, highland barley ear guide cone, 16, spiral protrusion, 17, drive motor.

Detailed ways

As shown in Fig. 1, a kind of threshing device for highland barley head of the utility model comprises a vertically arranged rotating shaft 1, the lower end of which is rotated and arranged on a frame 2, and the upper end is provided with a shaft for driving the rotating shaft 1 to rotate. Drive motor 17. The middle part of the rotating shaft 1 is coaxially provided with a drum 3, and the outer circumference of the drum 3 is provided with a fixed cylinder 4 whose lower end is fixedly connected with the frame 2, and a friction threshing gap is formed between the outer peripheral surface of the drum 3 and the inner peripheral surface of the fixed cylinder 4 5. The highland barley ears are fed from the top of the friction threshing gap 5, and the highland barley ears are rubbed by the differential speed between the drum 3 and the fixed cylinder 4 during the rotation of the drum 3 to complete threshing.

Cylinder 3 and fixed cylinder 4 are all made of rubber material, have certain elasticity, can reduce breakage rate, improve threshing quality. The outer peripheral surface of the drum 3 is provided with a spiral protrusion 16 for assisting threshing. The spiral protrusion 16 is also made of rubber material and molded integrally with the drum 3 to facilitate processing and manufacturing.

Both the drum 3 and the fixed cylinder 4 are tapered with the big end facing the frame 2 , and the taper of the drum 3 is greater than that of the fixed cylinder 4 . The width of the upper end of the friction threshing gap 5 is 10-20 mm, which can accommodate the highland barley ears. During the threshing process, the grains on the highland barley ears are gradually separated, and the width of the lower end of the friction threshing gap 5 is 5-10 mm, so that the highland barley grains can pass through smoothly. Block the passage of the larger ears of highland barley, so that the larger ears of highland barley are repeatedly threshed between the friction threshing gaps 5 .

The top of the friction threshing gap 5 is provided with a barley ear conveyor belt 14, and the top of the drum 3 is coaxially provided with a barley ear guide cone 15 on the rotating shaft 1. The barley ear guide cone 15 can rotate with the rotating shaft 1, and the barley ear conveyor belt 14 The ear of highland barley at the end of the conveying direction is evenly fed towards the friction threshing gap 5 .

Because in this embodiment, in order to ensure a low breakage rate, the lower end of the friction threshing gap 5 is set wider, and some broken ears and spikelets are also easy to fall from the lower end of the friction threshing gap 5, affecting the quality of the final product. In order to solve this problem, the threshing device is also provided with a repeated threshing mechanism for screening and threshing the highland barley ears that have not yet been threshed after passing through the friction threshing gap 5 .

The repeated threshing mechanism includes a sieve plate 6, an extraction guide plate 7, an extraction toggle plate 8, a barley ear collection box 9, and a conveying device 10. It is arranged on the inner peripheral surface of the fixed cylinder 4 and is used to direct the ejected matter falling from the friction threshing gap 5 toward the middle of the sieve plate 6. The ejected matter moving plate 8 is arranged on the rotating shaft 1 and is located above the sieve plate 6. The ejected matter In the process of rotating with the rotating shaft 1, the shifting plate 8 straightens the protruding matter gathered in the middle of the sieve plate 6 and shifts the unthreshed highland barley ears in the protruding matter to the outer edge of the sieve plate 6. On the outer edge of the sieve plate 6, There is an opening 601 for barley ears to pass through, and the barley ear collection box 9 is connected to the opening 601. The feeding end of the conveying device 10 is set in the barley ear collection box 9, and the discharge end is set above the friction threshing gap 5.

During the threshing process, the exudates passing through the frictional threshing gap 5 fall on the middle part of the sieve plate 6 through the extruded object guide plate 7, and the extruded matter moving plate 8 will straighten the accumulated extruded matter, which is beneficial for the grains to fall from the sieve plate 6 , while the spikelets and broken spikes in the protruding matter are pushed to the outer edge of the sieve plate 6 by the protruding matter dial, enter the highland barley ear collection box 9 through the opening 601 on the sieve plate 6, and enter the friction The upper end of the threshing gap 5 carries out repeated threshing. The conveying equipment 10 in this embodiment includes a belt conveyor, and a plurality of baffles 1002 are arranged vertically on the conveyor belt 1001 of the belt conveyor at intervals.

Be positioned at below sieve plate 6 on frame 2 and be provided with cleaning mechanism, cleaning mechanism comprises negative pressure blower fan 11, collecting material cone bucket 12 and the highland barley grain discharge pipe 13 that is arranged on collecting material cone bucket 12 lower ends, negative pressure blower fan The air inlet pipe of 11 links to each other with the highland barley grain discharge pipe 13, and the air outlet pipe is set to the small miscellaneous discharge pipe 1101. The clean highland barley grains are discharged from the highland barley grain discharge pipe 13 and collected uniformly, and the small impurities are discharged from the small waste discharge pipe 1101 and collected uniformly, so as to realize the synchronous completion of threshing and cleaning.

Claims (10)

1. A threshing device for highland barley ears, characterized in that it includes a frame (2) and a rotating shaft (1) vertically rotatable arranged on the frame (2), and the lower end of the rotating shaft (1) is rotated and set On the frame (2), a drum (3) is coaxially arranged on the rotating shaft (1), and the outer sleeve of the drum (3) is provided with a fixed cylinder (4) fixedly connected with the frame (2). The friction threshing gap (5) is formed between the outer peripheral surface of 3) and the inner peripheral surface of the fixed cylinder (4). 2. A threshing device for highland barley heads according to claim 1, characterized in that: both the drum (3) and the fixed cylinder (4) are tapered with the big end facing the frame (2), And the taper of the drum (3) is larger than the taper of the fixed cylinder (4). 3. A threshing device for highland barley heads according to claim 2, characterized in that: the width of the upper end of the friction threshing gap (5) is 10-20 mm, and the width of the lower end is 5-10 mm. 4. A threshing device for highland barley ears according to claim 1, characterized in that: a spiral protrusion (16) for assisting threshing is provided on the outer peripheral surface of the drum (3). 5. A threshing device for highland barley ears according to claim 1, characterized in that: a highland barley ear conveyor belt (14) is provided above the friction threshing gap (5), and on the rotating shaft (1) The top of the drum (3) is coaxially provided with a barley ear guide cone (15) for evenly feeding the barley ears on the barley ear conveyor belt (14) towards the friction threshing gap (5). 6. A threshing device for highland barley ears according to claim 1, characterized in that: the threshing device also includes a device for threshing the highland barley ears that have not yet been threshed after passing through the friction threshing gap (5). A repeated threshing mechanism for screening and repeating threshing. The repeated threshing mechanism includes a sieve plate (6), a guide plate (7) for extruded objects, a toggle plate for extruded objects (8), a collection box for barley ears (9) and a conveying device (10), The sieve plate (6) is connected to the lower end of the fixed cylinder (4) along the circumferential direction, and the exudate guide plate (7) is arranged on the inner peripheral surface of the fixed cylinder (4) and is used to separate the frictional threshing gap (5) The falling protruding matter guides toward the middle of the sieve plate (6), the protruding matter shifting plate (8) is arranged on the rotating shaft (1) and is located above the sieve plate (6), and the protruding matter shifting plate (8) is on the During the rotation of the rotating shaft (1), straighten the protruding matter gathered in the middle of the sieve plate (6) and move the unthreshed highland barley ears in the protruding matter to the outer edge of the sieve plate (6). There is an opening (601) for the ear of highland barley to pass through on the outer edge of the body, the ear collection box for barley (9) is connected to the opening (601), and the feeding end of the conveying device (10) is set in the ear collection box for barley In (9), the discharge end is arranged above the friction threshing gap (5). 7. A threshing device for highland barley ears according to claim 6, characterized in that: a cleaning mechanism is provided on the frame (2) below the sieve plate (6), and the cleaning The mechanism includes a negative pressure fan (11), a collection cone (12) and a highland barley grain discharge pipe (13) arranged at the lower end of the collection cone (12), the air inlet pipe of the negative pressure fan (11) and the highland barley grain The discharge pipes (13) are connected, and the air outlet pipe is set as a small miscellaneous discharge pipe (1101). 8. A threshing device for highland barley heads according to claim 6, characterized in that: the conveying equipment (10) includes a belt conveyor, and the conveyor belt (1001) of the belt conveyor is spaced vertically Multiple baffles (1002) are provided. 9. A threshing device for highland barley heads according to claim 1, characterized in that: the rotating shaft (1) is driven by a driving motor (17). 10. A threshing device for highland barley ears according to claim 1, characterized in that: the drum (3) and the fixing cylinder (4) are both made of rubber materials.