CN217608429U - Corn thresher - Google Patents

Abstract

The embodiment of the application provides a corn thresher, its screen cloth includes upper net and lower floor's net, the upper net sets up downwards along maize discharge gate direction slope, the upper net is fixed on lower floor's net, the first mesh of upper net is used for screening the corncob, let the kernel of corn enter into on the lower floor's net through first mesh, the online second mesh of lower floor is used for sieving out the chaff and the tiny particle impurity of maize, one side of screen cloth is provided with vibration drive arrangement, vibration drive arrangement is used for driving upper net and lower floor's net and does the fore-and-aft movement on the pendulum rod simultaneously, thereby can sieve out the chaff and the tiny particle impurity of the online maize of lower floor fast.

Description

Corn thresher

Technical Field

The utility model relates to a corn thresher field, in particular to a corn thresher.

Background

The corn thresher mainly comprises a roller, a concave plate, a sieve, a fan, a feeding hopper, a seed sliding plate, a spiral guide rod and the like. It adopts an axial flow threshing device which is tangentially fed with a spike stalk and discharges the spike stalk at the axle end. The process flow comprises the following steps: the corn ears enter the roller through the feeding hopper and are threshed under the impact of the high-speed rotary roller and the interaction of the corn ears, the roller and the concave plate. Most of the seeds and fine impurities are cleaned by the fan through the concave holes. The light impurities are blown out from the impurity discharge port, and the seeds slide out of the machine by the seed slide plate. The cob moves backwards along the axial direction of the roller, is discharged out of the machine through the surface of the vibrating sieve from an outlet at the shaft end, and part of grains carried in the cob leak down through the sieve holes and enter the grain sliding plate to slide out of the machine.

In the prior art, the sieve of the corn thresher only has the sieve on the uppermost layer to vibrate, so that when the corns are screened, the corns on the lower layer contain crushed bran and small-particle impurities, and the corns need to be screened again manually, and the labor intensity of workers is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can filter the automatic corn thresher who selects ear of corn and the tiny particle impurity in the kernel of corn.

In order to achieve the above purpose, the present application provides the following technical solutions:

the utility model provides a corn thresher, includes frame, feed inlet, corn-on-cob discharge gate, kernel of corn discharge gate, corncob discharge gate, fan, thresher, driving motor, first belt pulley and screen cloth, driving motor drives thresher through first belt pulley and threshes the maize, reset spring installs in the frame is passed through to one side of screen cloth, the opposite side of screen cloth passes through the pendulum rod and installs in the frame, and the screen cloth includes upper net and lower floor's net, upper net sets up downwards along the slope of corn discharge gate direction, upper net fixes on lower floor's net, upper net's first mesh is used for screening the corncob, lets the kernel of corn enter into lower floor through first mesh online, the second mesh that lower floor was netted is used for screening out the chaff and the tiny particle impurity of maize, one side of screen cloth is provided with vibrations drive arrangement, vibrations drive arrangement is used for driving upper net and lower floor's net and is done the fore-and-aft movement simultaneously on the pendulum rod.

In a possible implementation mode, vibrations drive arrangement includes chain, sprocket, second pulley and belt, the second pulley sets up the below at first pulley, the second pulley passes through belt and first belt pulley connection, a terminal surface of second pulley is provided with eccentric post, the first end and the eccentric post of chain are connected, the other end and the screen cloth of chain are connected, the sprocket is connected with the chain meshing, and when driving motor drives the first pulley rotation, thereby the rotatory eccentric post that drives of second pulley is eccentric rotary motion around the centre of a circle to it is the seesaw to drive the screen cloth through the chain.

In a possible implementation mode, vibrations drive arrangement includes pivot, rocking arm, universal bulb connecting rod, slider and slide rail, the pivot sets up in the centre of a circle of first belt pulley, the one end and the pivot of rocking arm are rotated and are connected, the one end of universal bulb connecting rod is rotated with the other end of rocking arm and is connected, the other end and the slider of universal bulb connecting rod rotate and are connected, slider slidable mounting is on the slide rail, one side and the screen cloth of slider are connected, when rotary motion was done to first belt pulley, it is rotatory to drive the pivot, and the pivot is rotatory so that drive the rocking arm, and the rocking arm is the seesaw in the slide rail through universal bulb connecting rod drive slider to it is the seesaw to drive the screen cloth.

In one possible implementation, the first mesh has a pore size of 14mm to 16mm.

In one possible implementation, the first mesh has a pore size of 15mm.

In one possible implementation, the first mesh opening has an aperture size of 4mm to 6mm.

In one possible implementation, the first mesh has a pore size of 5mm.

The beneficial effect of this application does:

the utility model provides a screen cloth includes upper net and lower net, upper net sets up along maize discharge gate direction slope downwards, upper net fixes on the lower net, the first mesh of upper net is used for screening the corncob, let the kernel of corn enter into the lower net on through first mesh, the online second mesh of lower net is used for sieving out the chaff and the tiny particle impurity of maize, one side of screen cloth is provided with vibration-powered device, vibration-powered device is used for driving upper net and lower net and does the fore-and-aft movement on the pendulum rod simultaneously, thereby can sieve out the chaff and the tiny particle impurity of the online maize of lower net fast.

Drawings

FIG. 1 is a schematic view of a corn thresher according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a vibration driving device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another view angle of the vibration driving device according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a screen panel according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram illustrating a top view of a screen according to an embodiment of the present disclosure;

FIG. 6 isbase:Sub>A cross-sectional view at A-A of FIG. 5;

fig. 7 is a schematic structural diagram of a vibration driving device according to another embodiment of the present application;

fig. 8 is a schematic structural diagram of another view angle of a vibration driving device according to another embodiment of the present application;

fig. 9 is a schematic perspective view of a vibration driving device according to another embodiment of the present application; description of reference numerals:

1. a frame; 2. a feed inlet; 3. a corn cob discharging port; 4. a corn grain discharge hole; 5. a corn ear discharge hole; 6. a fan; 7. a threshing device; 9. a first pulley; 10. a screen mesh; 11. a return spring; 12. a swing rod; 13. a vibration driving device;

101. an upper net; 102. a lower net;

131. a chain; 132. a sprocket; 133. a second pulley; 134. a belt; 135. an eccentric column;

141. a rotating shaft; 142. a rotating arm; 143. a universal ball head connecting rod; 144. a slider; 145. a slide rail;

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, which will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a corn thresher comprises a frame 1, a feeding port 2, a corn cob discharging port 3, a corn kernel discharging port 4, a corn ear discharging port 5, a fan 6, a threshing device 7, a driving motor (not shown), a first belt pulley 9 and a screen cloth 10, wherein the driving motor drives the threshing device 7 to thresh corn through the first belt pulley 9, one side of the screen cloth 10 is installed on the frame 1 through a reset spring 11, the other side of the screen cloth 10 is installed on the frame 1 through a swing rod 12, the screen cloth 10 comprises an upper net 101 and a lower net 102, the upper net 101 is obliquely and downwards arranged along the direction of the corn discharging port, the upper net 101 is fixed on the lower net 102, a first mesh of the upper net 101 is used for screening corn ears, the corn kernels enter the lower net 102 through the first mesh, a second mesh of the lower net 102 is used for screening chaffs and small-particle impurities of the corn, a vibration driving device 13 is arranged on one side of the screen cloth 10, and the vibration driving device 13 is used for driving the upper net 101 and the lower net 102 to simultaneously swing back and forth on the swing rod 12.

As shown in fig. 4 and 6, the screen 10 of the present application includes an upper net 101 and a lower net 102, the upper net 101 is disposed obliquely downward along a corn discharging hole, the upper net 101 is fixed on the lower net 102, a first mesh of the upper net 101 is used for screening corn ears, corn kernels enter the lower net 102 through the first mesh, a second mesh of the lower net 102 is used for screening broken bran and small particle impurities of corn, a vibration driving device 13 is disposed on one side of the screen 10, and the vibration driving device 13 is used for driving the upper net 101 and the lower net 102 to swing back and forth on a swing rod 12, so that the broken bran and small particle impurities of corn on the lower net 102 can be screened out quickly.

As shown in fig. 2 and 3, in a possible implementation manner, the vibration driving device 13 includes a chain 131, a sprocket 132, a second pulley 133 and a belt 134, the second pulley 133 is disposed below the first pulley 9, the second pulley 133 is connected to the first pulley 9 through the belt 134, an end surface of the second pulley 133 is provided with an eccentric column 135, a first end of the chain 131 is connected to the eccentric column 135, another end of the chain 131 is connected to the screen 10, the sprocket 132 is connected to the chain 131 in a meshing manner, when the driving motor drives the first pulley 9 to rotate, the second pulley 133 rotates to drive the eccentric column 135 to perform eccentric rotation around the center of a circle, so as to drive the screen 10 to perform back and forth movement through the chain 131.

As shown in fig. 7 to 9, in one possible implementation manner, the vibration driving device 13 includes a rotating shaft 141, a rotating arm 142, a universal ball connecting rod 143, a slider 144 and a sliding rail 145, the rotating shaft 141 is disposed on the center of the first belt pulley 9, one end of the rotating arm 142 is rotatably connected to the rotating shaft 141, one end of the universal ball connecting rod 143 is rotatably connected to the other end of the rotating arm 142, the other end of the universal ball connecting rod 143 is rotatably connected to the slider 144, the slider 144 is slidably mounted on the sliding rail 145, one side of the slider 144 is connected to the screen cloth 10, when the first belt pulley 9 rotates, the rotating shaft 141 is driven to rotate, the rotating shaft 141 drives the rotating arm 142 to rotate, and the rotating arm 142 drives the slider 144 to move back and forth in the sliding rail 145 through the universal ball connecting rod 143, thereby driving the screen cloth 10 to move back and forth.

The vibration driving device 13 of the embodiment can be directly matched with the first belt pulley 9 to drive the screen cloth 10 to move back and forth, so that the structure of the driving device is greatly simplified, and the cost is saved.

In one possible implementation, the first mesh opening has a diameter of 14mm to 16mm, facilitating the sifting of the corn into the lower net 102 and the retention of the ears of corn in the upper net 101.

In one possible implementation, the first mesh opening has a pore size of 15mm.

In one possible implementation, the first mesh has a pore size of 4mm to 6mm.

In one possible implementation, the first mesh opening has a pore size of 5mm. The broken bran and small particle impurities of the corn can be conveniently screened out from the corn through the lower layer net 102, and the corn can be conveniently left in the lower layer net 102.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Reference throughout this specification to apparatus or components, in embodiments or to components thereof, may be understood as not necessarily referring to the particular orientation, construction or operation as such. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "may include" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto. Although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: it is also possible to modify the solutions described in the previous embodiments or to substitute some or all of them with equivalents. And the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (7)

1. The utility model provides a corn thresher, includes frame, feed inlet, corn-on-cob discharge gate, kernel of corn discharge gate, corncob discharge gate, fan, thresher, driving motor, first belt pulley and screen cloth, driving motor drives thresher through first belt pulley and threshes its characterized in that to the maize: one side of screen cloth is passed through reset spring and is installed in the frame, the opposite side of screen cloth passes through the pendulum rod and installs in the frame, and the screen cloth includes upper net and lower floor's net, upper net sets up downwards along maize discharge gate direction slope, upper net fixes on lower floor's net, the first mesh of upper net is used for screening the corncob, lets the kernel of corn enter into on the lower floor's net through first mesh, the second mesh that lower floor was netted is used for screening out the chaff and the tiny particle impurity of maize, one side of screen cloth is provided with vibrations drive arrangement, vibrations drive arrangement is used for driving upper net and lower floor's net and is the fore-and-aft movement simultaneously on the pendulum rod.

2. The corn thresher of claim 1, wherein: the utility model discloses a vibration drive device, including the chain, sprocket, second belt pulley and belt, the second belt pulley sets up the below at first belt pulley, the second belt pulley passes through belt and first belt pulley connection, a terminal surface of second belt pulley is provided with eccentric post, the first end and the eccentric post of chain are connected, the other end and the screen cloth of chain are connected, the sprocket is connected with the chain meshing, when the first belt pulley of driving motor drive is rotatory, thereby the rotatory eccentric rotary motion of driving eccentric post around the centre of a circle of second belt pulley to it is seesaw to drive the screen cloth through the chain.

3. The corn thresher of claim 1, wherein: vibrations drive arrangement includes pivot, rocking arm, universal bulb connecting rod, slider and slide rail, the pivot sets up in the centre of a circle of first belt pulley, the one end and the pivot of rocking arm are rotated and are connected, the one end of universal bulb connecting rod is rotated with the other end of rocking arm and is connected, the other end and the slider of universal bulb connecting rod rotate and are connected, slider slidable mounting is on the slide rail, one side and the screen cloth of slider are connected, when rotary motion is done to first belt pulley, it is rotatory to drive the pivot, and the pivot is rotatory so that drive the rocking arm, and the rocking arm is through the drive slider of universal bulb connecting rod and is the seesaw in the slide rail to it is the seesaw to drive the screen cloth.

4. A corn thresher according to claim 1, wherein: the aperture of the first mesh is 14mm to 16mm.

5. The corn thresher of claim 4, wherein: the aperture of the first mesh is 15mm.

6. The corn thresher of claim 1, wherein: the aperture of the first mesh is 4mm to 6mm.

7. The corn thresher of claim 6, wherein: the aperture of the first mesh is 5mm.

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