CN217217482U - Ice and snow removing pretreatment device of impact vibrating screen type corn thresher - Google Patents

Abstract

Striking sieve formula corn thresher removes ice and snow preprocessing device that shakes belongs to the agricultural machine field: the main frame is hinged with four equilong suspenders through an upper pin shaft, the lower end of each suspender is hinged with a lower pin shaft of a downward inclined vibrating screen, a collision plate and a screen plate with conical bulges uniformly distributed on the surface are sequentially arranged on the vibrating screen, a V-shaped snow blocking strip is arranged at the lower end of the screen plate, a U-shaped groove at the lower part of the vibrating screen is reversely inclined with the vibrating screen, a connecting rod is respectively hinged with the vibrating screen and a crankshaft, the crankshaft is rotatably assembled in a bearing with a seat at the lower rear part of the main frame, and a feeding hopper is fixedly arranged at the upper front part of the main frame. The threshing machine disclosed by the invention can be used for removing most of ice and snow in the corn ears by pretreating the corn ears mixed with ice and snow before entering the corn threshing machine, impacting by the vibrating screen, vibrating and screening and feeding back snow blocking, and only threshing the clean corn ears, so that the threshing power consumption is reduced, the efficiency is increased, the threshing quality is improved, and meanwhile, the threshing machine is simple in structure, reliable in quality and strong in adaptability.

Description

Impact vibrating screen type pretreatment device for removing ice and snow of corn thresher

Technical Field

The invention belongs to the field of agricultural machinery, and mainly relates to an ice and snow removing pretreatment device of an impact vibrating screen type corn thresher.

Background

Corn is used as an important grain crop and feed crop, the total yield and the planting area of the corn are only inferior to those of wheat and rice, the corn is always known as a long-life food, and the corn contains abundant proteins, vitamins, fat, cellulose and the like, and has higher development potential for developing high-nutrition functional food.

The corn thresher is a mechanical device for threshing corn ears, most of the middle-large corn thresher is an axial-flow drum type, the threshing spike teeth of a rotary threshing drum are used for striking the corn ears to complete threshing of the corn, and the threshing machine has the characteristics of high production efficiency, good threshing quality, reliable work, firmness, durability, convenience in use and maintenance and the like, so the threshing machine is popular among farmers for many years. However, when the thresher is used in northern areas, the thresher is mostly used in autumn and winter, at the moment, most of the northeast corns are laid in the open air on the ground, due to rain, snow and low temperature, the upper surface of the corn pile is generally covered by snow (sometimes, due to temperature change, the snow can be melted into ice and covers the surface of part of corn ears), when threshing, a bucket of a loader directly pours the corns mixed with the ice and the snow into a feeding port of the thresher, the corn ears containing the ice and the snow directly enter a threshing roller, spike teeth of the threshing roller can strike the ice and the snow while threshing the corns, so that the power consumption of the thresher can be increased, the working efficiency of the thresher and the threshing quality of the corns can be reduced, the threshed corn grains are mixed with the ice and the snow and then are cleaned by a fan through a sieve plate, the cleaning load can be increased, and meanwhile, the threshed corn grains contain certain ice and snow, on the one hand, the storage is inconvenient; on the other hand, the drying process in the post-processing also increases the energy consumption. Therefore, the threshing machine is improved and designed aiming at the threshing machine in the northeast region, and a pretreatment device capable of removing ice and snow matched with the threshing machine is developed so as to reduce the power consumption of the threshing machine and improve the threshing quality of corn, so that the threshing machine has important practical significance.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and researches and designs an impact vibrating screen type corn thresher ice and snow removing pretreatment device, most of ice and snow in corn ears are removed through impact screening pretreatment of the device, and clean corn ears enter the thresher, so that the functions of reducing threshing power consumption and improving threshing quality and efficiency are realized.

The purpose of the invention is realized as follows: the upper front part of a main frame with a mounting hole at the lower part is hinged with four equilong and parallel suspenders through an upper pin shaft, the lower end of the suspender is hinged with lower pin shafts at two sides of a vibrating screen which is in a downward inclined shape, the vibrating screen is sequentially provided with a striking plate with conical bulges uniformly distributed on the surface and a screen plate with round holes uniformly distributed from back to front, the upper part of the lower end of the screen plate is provided with a V-shaped snow blocking strip, a U-shaped groove fixedly arranged at the lower part of the vibrating screen is in a reverse inclined shape with the vibrating screen, the rear part of the U-shaped groove is provided with a snow outlet, the U-shaped groove is positioned under the screen plate, the vibrating screen is hinged with a connecting rod through a pin shaft, the other end of the connecting rod is hinged with a crankshaft, the crankshaft is rotatably assembled in a pair of belt seat bearings fixedly arranged at the lower rear part of the main frame, the other end of the crankshaft is fixedly provided with a belt wheel, the upper front part of the main frame is fixedly provided with a feeding hopper through a screw, the feeding hopper is positioned on the striking plate of the vibrating screen, therefore, an impact vibrating screen type corn thresher ice and snow removing pretreatment device is formed.

The invention adopts the mode that the impact vibrating screen type corn thresher ice and snow removing pretreatment device is assembled on the feeding port of the existing large and medium-sized corn thresher, corn ears mixed with ice and snow need to be treated by the ice and snow removing pretreatment device before entering the corn thresher, namely, the corn ears mixed with ice and snow collide with a collision plate with a conical bulge of a vibrating screen, the agglomerated ice and snow are crushed into broken ice and snow, the broken ice and snow are screened by a vibrating screen plate and then fall into a U-shaped groove and are discharged from a snow outlet of the U-shaped groove, clean corn ears with most of the ice and snow removed are discharged from the end part of the vibrating screen and then directly fall into a threshing cylinder of the thresher for threshing through the feeding port of the thresher, in addition, V-shaped snow blocking strips at the lower end of the screen plate can also play a certain role of blocking feedback on part of the broken ice and snow passing through the screen holes, so that the broken ice and snow enter the screen holes, and further reduce the ice and snow to enter the threshing cylinder, because the mixing of ice and snow is reduced, the threshing machine only threshes corn ears and a small amount of residual ice and snow, so that the threshing power consumption is reduced, the efficiency is increased, the threshing quality is improved, in addition, the cleaning seed grains also reduce the cleaning load of a fan, the energy consumption required by drying the separated grains can be reduced, and finally, the quality of the grains is improved.

Drawings

FIG. 1 is a front perspective view of an ice and snow removing pretreatment device of an impact vibrating screen type corn thresher;

FIG. 2 is a rear perspective view of an ice and snow removing pretreatment device of the impact vibrating screen type corn thresher;

FIG. 3 is a lower axial view of an ice and snow removing pretreatment device of the impact vibrating screen type corn thresher;

FIG. 4 is a front view of an ice and snow removing pretreatment device of the impact vibrating screen type corn thresher;

FIG. 5 is a top view of the ice and snow removing pretreatment device of the impact vibrating screen type corn thresher;

in the figure: 1. main frame 2, vibrating screen 3, upper pin shaft 4, V-shaped snow-blocking strip 5, screen plate 6, mounting hole 7, round hole 8, U-shaped groove 9, suspender 10, lower pin shaft 11, snow outlet 12, connecting rod 13, crankshaft 14, bearing with seat 15, belt wheel 16, collision plate 17, conical projection 18, feeding hopper 19, screw 20, pin shaft

Detailed Description

Embodiments of the invention are described in detail below with reference to the following drawings:

a collision vibrating screen type pretreatment device for removing ice and snow of a corn thresher is characterized in that the upper front part of a main frame 1 provided with a mounting hole 6 at the lower part is hinged with four equal-length and parallel suspenders 9 through an upper pin shaft 3, the lower end of each suspender 9 is hinged with lower pin shafts 10 at two sides of a vibrating screen 2 which is in a downward inclined shape, the vibrating screen 2 is sequentially provided with a striker plate 16 with conical bulges 17 uniformly distributed on the surface and a screen plate 5 with round holes 7 uniformly distributed from back to front, the upper part of the lower end of the screen plate 5 is provided with a V-shaped snow blocking strip 4, a U-shaped groove 8 fixedly arranged at the lower part of the vibrating screen 2 is in a reverse inclined shape with the vibrating screen 2, the rear part of the U-shaped groove 8 is provided with a snow outlet 11, the U-shaped groove 8 is positioned under the screen plate 5, the vibrating screen 2 is hinged with a connecting rod 12 through a pin shaft 20, the other end of the connecting rod 12 is hinged with a crankshaft 13, the crankshaft 13 is rotatably assembled in a pair of belt seat bearings 14 fixedly arranged at the lower rear part of the main frame 1, the other end of the crankshaft 13 is fixedly provided with a belt wheel 15, the upper front part of the main frame 1 is fixedly provided with a feeding hopper 18 through a screw 19, and the feeding hopper 18 is positioned on a collision plate 16 of the vibrating screen 2.

Before the operation of the thresher, the ice and snow removing pretreatment device of the impact vibrating screen type corn thresher is assembled with the thresher by a bolt penetrating through a mounting hole 6 at the lower part of a main frame 1, so that the outlet end of a vibrating screen 2 is positioned at the upper part of a feeding port of the thresher, and the power of the thresher is connected into a belt wheel 15 fixedly arranged at the end part of a crankshaft 13 through a V-shaped belt.

When the machine works, corn ears mixed with ice and snow are fed into a feeding hopper 18 fixedly arranged at the upper part of a main frame 1 by a bucket of a loader, the corn ears mixed with the ice and snow fall onto a collision plate 16 at the rear upper part of a vibrating screen 2 after being collected by the feeding hopper 18, an accessed external power drives a crankshaft 13 to rotate through a belt wheel 15, the rotating crankshaft 13 drives the vibrating screen 2 hoisted by 4 suspenders 9 to vibrate in a reciprocating manner through a connecting rod 12, the collision plate 16 on the vibrating screen 2 vibrating in the reciprocating manner and the corn ears mixed with the ice and snow falling onto the upper part of the vibrating screen collide to vibrate, the corn ears and the crushed snow collide into ice and snow in blocks through a conical bulge 17 on the collision plate 16, the ice and snow (including the ice and snow in blocks and the ice and snow covered on the surfaces of the corn ears and the clean corn ears and the crushed snow pass through a sieve plate 5 uniformly distributed with round holes 7, the crushed snow falls into a U-shaped groove 8 at the lower part of the vibrating screen 2, the corn ear is discharged out of the machine through a snow outlet, the clean corn ear crosses a V-shaped snow blocking strip 4 at the lower end of a sieve plate 5 (the V-shaped snow blocking strip 4 has certain blocking effect on crushed snow due to the size and the structural form and does not block corn ears, the blocked part of crushed snow falls into a U-shaped groove 8 after the vibration of the sieve plate 5, the whole crushed snow and ice is further reduced to enter a corn thresher), the crushed snow and ice fall into a feeding port of the corn thresher, the clean corn ear passing through the feeding port enters a threshing cylinder for threshing, the impact vibration sieve type corn thresher ice and snow removal pretreatment device pretreats the corn ear mixed with ice and snow before threshing, most of ice and snow are removed, the clean corn ear entering the corn thresher is relatively clean, a small amount of ice and snow still remains, and the clean corn ear is removed by the threshing cylinder of the thresher, after passing through the gravure sieve, grains are cleaned and decontaminated by a fan, and are discharged by a grain elevator of the thresher, and corncobs are discharged from a trash discharge port, so that the threshing and cleaning operation of the corns is completed.

The impact vibrating screen type corn thresher ice and snow removing pretreatment device of the invention pretreats corn ears mixed with ice and snow, after the corn ears mixed with the ice and the snow are impacted by the impact plate 16, screened by the screen plate 5 to remove the ice and the snow, and feedback blocked by the crushed ice and snow of the V-shaped snow retaining strip 4, most of ice and snow are removed, compared with the traditional corn thresher, the corn ear mixed with the ice and snow is directly operated, the cleaned corn ear (containing a small amount of ice and snow) after pretreatment enters the thresher, because less ice and snow are mixed, the threshing power consumption is reduced, the threshing efficiency and the threshing quality are improved, the power consumption of cleaning by a fan for cleaning the threshed and screened clean grains is also reduced, and simultaneously, because the corn kernels separated from the corn thresher contain less ice and snow, the corn thresher is easy to store and preserve, and the drying energy consumption of grains is reduced, so far, the ice and snow removing pretreatment device of the impact vibration sieve type corn thresher achieves the design function of removing the ice and snow in the corn ears.

Claims (1)

1. Striking sieve formula corn thresher removes ice and snow preprocessing device that shakes, its characterized in that: the upper front part of a main frame (1) with a mounting hole (6) at the lower part is hinged with four equilong and parallel suspenders (9) through an upper pin shaft (3), the lower end of each suspender (9) is hinged with lower pin shafts (10) at two sides of a vibrating screen (2) in a downward inclined shape, the vibrating screen (2) is sequentially provided with a striking plate (16) with uniformly distributed conical bulges (17) on the surface and a sieve plate (5) with uniformly distributed round holes (7) from back to front, the upper part of the lower end of the sieve plate (5) is provided with a V-shaped snow blocking strip (4), a U-shaped groove (8) fixedly arranged at the lower part of the vibrating screen (2) is reversely inclined with the vibrating screen (2), the rear part of the U-shaped groove (8) is provided with a snow outlet (11), the U-shaped groove (8) is positioned under the sieve plate (5), the vibrating screen (2) is hinged with a connecting rod (12) through a pin shaft (20), and the other end of the connecting rod (12) is hinged with a crankshaft (13), the vibrating screen is characterized in that the crankshaft (13) is rotatably assembled in a pair of belt seat bearings (14) fixedly arranged at the lower rear part of the main frame (1), a belt wheel (15) is fixedly arranged at the other end of the crankshaft (13), a feeding hopper (18) is fixedly arranged at the upper front part of the main frame (1) through a screw (19), and the feeding hopper (18) is positioned on a collision plate (16) of the vibrating screen (2).

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