Discharging winnowing device for corn thresher

Abstract

The utility model relates to the technical field of discharge winnowing of corn threshers, in particular to a discharge winnowing device for a corn thresher, which comprises a hopper and a transverse plate, the surface of the hopper is fixedly connected with the surface of the transverse plate, a corn threshing discharge wind power adjusting structure is arranged on the surface of the hopper, and a fan is fixedly connected to the upper surface of the transverse plate. The draught fan is communicated with the transverse pipe, the transverse pipe penetrates through the hopper and is connected with the hopper in a sealed mode, and a corn threshing dust filtering structure is arranged on the surface of the hopper. According to the discharging winnowing device for the corn thresher, through cooperation of a corn threshing discharging wind power adjusting structure and a draught fan, a motor is started to drive a first gear to rotate in a second box body, the first gear rotates to drive a second gear to rotate anticlockwise in the second box body, and the second gear rotates anticlockwise to drive a transverse rod to move anticlockwise; a corn threshing and discharging wind power adjusting structure is additionally arranged, so that the situation that wind power does not reach the standard when too many corn kernels are conveyed in the receiving hopper is avoided, and the dust removal and sorting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corn thresher discharge air selection, in particular to a corn thresher discharge air selection device. Background Art

[0002] The function of the corn thresher is to thresh the dried corn ears. Most of them are axial flow drum type, and there are also vertical threshing disc type. Because of its high production efficiency, good threshing quality, easy operation, simple structure, durability, reliable operation and easy use and maintenance, it has been very popular among farmers for many years.

[0003] For example, a discharge air separation device for a corn thresher with the authorization announcement number "CN218337213U" can complete the dust removal work without installing an electric dust suction device by setting up an air collecting hood, thereby preventing the operator from inhaling dust into the lungs, and providing a guarantee for the safe use of the discharge air separation device for the corn thresher. However, when the dust in the corn kernels is removed by the fan, there is no wind force adjustment structure. When too many corn kernels are transported in the receiving hopper, the wind force does not meet the standard, thereby reducing the dust removal and air separation quality. At the same time, when the fan blows air to the corn kernels, the corn kernels are in a dry state and are lighter in weight, so when the corn kernels are removed from the dust, the corn kernels will be blown into the connecting pipe, which requires the staff to filter them again, thereby increasing the labor force. Utility Model Content

[0004] The utility model aims to solve the problems that the wind force does not meet the standard when too many corn kernels are transported in the receiving hopper due to the lack of wind force regulating structure, thereby reducing the dust removal and air separation quality; and when the fan blows air to the corn kernels, the corn kernels are in a wind-dried state and are lighter in weight, resulting in the corn kernels being blown into the inside of the connecting pipe when dust is removed from the corn kernels, which requires the staff to filter them again, thereby increasing the manual labor. A discharge air separation device for a corn thresher is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A discharge air selection device for a corn thresher is designed, comprising a hopper and a transverse plate. The surface of the hopper is fixedly connected to the surface of the transverse plate. The surface of the hopper is provided with a corn threshing discharge wind force adjustment structure. The upper surface of the transverse plate is fixedly connected to a fan, the fan is connected to a transverse pipe, the transverse pipe penetrates the hopper and is sealed to the hopper. The surface of the hopper is provided with a corn threshing dust filtering structure. The hopper is connected to an external corn thresher, the surface of the hopper is processed with an opening, and the outer wall of the hopper is processed with two slide grooves.

[0007] Preferably, the corn threshing and discharging wind force adjustment structure includes a second box body, the surface of the second box body is fixedly connected to a motor through a bracket, the motor output shaft passes through the second box body and is fixedly connected to a first gear through an accelerator, the first gear is meshed with the second gear, the surface of the second gear is rotatably connected to the inner wall of the second box body through a pin shaft, the surface of the second gear is fixedly connected to a cross bar, and the end of the cross bar is movably connected to the surface of the slider through a pin shaft.

[0008] Preferably, the sliding block is slidably engaged with a slide groove processed on the surface of the straight plate through a surface protrusion, and the surface of the straight plate is slidably connected with slideways processed on both sides of the inner wall of the second box body.

[0009] Preferably, a square plate is fixedly connected to the surface of the straight plate, and the square plate passes through the second box body and is slidably connected to the second box body.

[0010] Preferably, the square plate passes through the transverse tube and is slidably connected to the transverse tube, and the surface of the second box body is fixedly connected to the surface of the hopper.

[0011] Preferably, the corn threshing dust filtering structure includes a first box body, which is slidably connected to the slide groove through two raised parts on the surface, the two raised parts on the surface of the first box body and the hopper are threadedly connected with bolts, a first filter screen is fixedly installed on the left end of the first box body, a second filter screen is installed on the surface of the first box body, and a sliding door is installed on the surface of the first box body.

[0012] The utility model proposes a discharge air sorting device for a corn thresher, which has the beneficial effects that: through the cooperation of the corn threshing and discharging wind force regulating structure and the fan, the motor starts and drives the first gear to rotate in the second box body, and the rotation of the first gear can drive the second gear to rotate counterclockwise in the second box body, and the counterclockwise rotation of the second gear drives the cross bar to move counterclockwise, and the clockwise movement of the cross bar drives the slide to slide rightward in the slide groove processed on the surface of the straight plate through the surface protrusion part, and when the slider slides to the right, it will make the straight plate slide downward in the slides processed on both sides of the inner wall of the second box body, and the downward sliding of the straight plate drives the square plate to slide downward in the second box body and the cross tube, and the corn threshing and discharging wind force regulating structure is added to avoid the wind force not meeting the standard when too many corn kernels are transported in the receiving hopper, thereby improving the dust removal and sorting quality.

[0013] Through the cooperation of the corn threshing dust filtering structure and the fan, the two bolts are turned to the right to make the two bolts threshing hopper surface, and then the first box body is pulled out in the slide groove through the two raised parts on the surface, and then the sliding door installed on the first box body is opened to clean the dust inside the first box body. At the same time, the first filter screen and the second filter screen can also be disassembled and replaced. The corn threshing dust filtering structure is used to avoid the light weight of corn kernels in the air-dried state, which will cause the corn kernels to be blown into the first box body when the corn kernels are dusted, and the staff needs to filter them again, thereby reducing manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A front view of

[0016] Figure 3 for Figure 2 A front cross-sectional view of

[0017] Figure 4 for Figure 3 A magnified view of middle;

[0018] Figure 5 for Figure 3 A front cross-sectional view of the wind regulating structure for corn threshing and discharging;

[0019] Figure 6 for Figure 5 Left side cross-sectional view.

[0020] In the figure: 1. corn threshing dust filtering structure, 101. first box body, 102. second filter screen, 103. first filter screen, 104. bolt, 2. corn threshing discharging wind force adjustment structure, 201. second box body, 202. motor, 203. first gear, 204. second gear, 205. cross bar, 206. slider, 3. hopper, 4. cross plate, 5. fan, 6. cross pipe, 7. slide chute, 8. straight plate, 9. square plate. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See attached Figure 1-6: In this embodiment, a discharge air selection device for a corn thresher includes a hopper 3 and a transverse plate 4. The surface of the hopper 3 is fixedly connected to the surface of the transverse plate 4. A corn threshing discharge wind force adjustment structure 2 is provided on the surface of the hopper 3. A fan 5 is fixedly connected to the upper surface of the transverse plate 4. The fan 5 can meet the working needs according to actual needs. The fan 5 is connected to a transverse pipe 6. The transverse pipe 6 penetrates the hopper 3 and is sealed with the hopper 3. A corn threshing dust filtering structure 1 is provided on the surface of the hopper 3;

[0023] The hopper 3 is connected to the external corn thresher, the surface of the hopper 3 is processed with an opening, the outer wall of the hopper 3 is processed with two slide grooves 7, the slider 206 is slidably engaged with the slide groove processed on the surface of the straight plate 8 through the surface protrusion, the slider 206 can slide in the slide groove processed on the surface of the straight plate 8 through the surface protrusion, and the surface of the straight plate 8 is slidably connected with the slideways processed on both sides of the inner wall of the second box body 201;

[0024] The straight plate 8 can slide in the slideways processed on both sides of the inner wall of the second box body 201. The surface of the straight plate 8 is fixedly connected with a square plate 9. The square plate 9 penetrates the second box body 201 and is slidably connected to the second box body 201. The square plate 9 can slide in the second box body 201. The square plate 9 penetrates the cross tube 6 and is slidably connected to the cross tube 6. The plan 9 can slide in the cross tube 6. The surface of the second box body 201 is fixedly connected to the surface of the hopper 3.

[0025] See attached Figure 1-6 : The corn threshing and discharging wind force regulating structure 2 includes a second box body 201, and a motor 202 is fixedly connected to the surface of the second box body 201 through a bracket. The motor 202 can meet the working needs according to actual needs. The output shaft of the motor 202 passes through the second box body 201 and is fixedly connected to the first gear 203 through an accelerator. The motor 202 can drive the first gear 203 to rotate in the second box body 201;

[0026] The first gear 203 is meshed with the second gear 204, and the surface of the second gear 204 is rotatably connected to the inner wall of the second box body 201 through a pin shaft. The rotation of the first gear 203 can drive the second gear 204 to rotate in the second box body 201. A cross bar 205 is fixedly connected to the surface of the second gear 204. The rotation of the second gear 204 can drive the cross bar 205 to move. The end of the cross bar 205 is movably connected to the surface of the slider 206 through a pin shaft. The movement of the cross bar 205 can drive the slider 206 to move synchronously.

[0027] See attached Figure 1-3 : The corn threshing dust filtering structure 1 includes a first box body 101, which is slidably connected to the chute 7 through two raised parts on the surface, and the first box body 101 can slide in the chute 7 through the two raised parts on the surface. The two raised parts on the surface of the first box body 101 and the hopper 3 are both threadedly connected with bolts 104, and a first filter 103 is fixedly installed on the left end of the first box body 101;

[0028] A second filter 102 is installed on the surface of the first box body 101. The first filter 103 and the second filter 102 are made of a stainless steel plate with through holes on the surface. The through holes processed on the surface of the first filter 103 are larger than the through holes processed on the surface of the second filter 102, so that impurities can enter the first box body 101 through the first filter, and wind will be discharged through the second filter 102. A sliding door is installed on the surface of the first box body 101.

[0029] Working principle:

[0030] Corn thresher discharge air selection adjustment and filtration work:

[0031] When the corn kernels need to be air-selected and filtered, the corn is threshed by an external corn thresher, and the threshed corn enters through the top of the hopper 3, and then the external power supply of the ventilator 5 is connected. The fan 5 starts to supply air to the inside of the hopper 3 through the horizontal pipe 6, and at the same time, the external power supply of the motor 202 is turned on. The motor 202 starts to drive the first gear 203 to rotate in the second box body 201. The rotation of the first gear 203 can drive the second gear 204 to rotate counterclockwise in the second box body 201, and the second gear 204 rotates counterclockwise. The movement drives the cross bar 205 to move counterclockwise, and the clockwise movement of the cross bar 205 drives the slide 206 to slide rightward in the slide groove processed on the surface of the straight plate 8 through the surface protrusion. When the slide 206 slides rightward, the straight plate 8 will slide downward in the slideways processed on both sides of the inner wall of the second box body 201. The downward sliding of the straight plate 8 drives the square plate 9 to slide downward in the second box body 201 and the cross tube 6. In this way, the internal size of the cross tube 6 can be adjusted by sliding the square plate 9 downward in the cross tube 6, thereby controlling the strength of the wind flow.

[0032] When the square plate 9 is adjusted to a suitable position in the horizontal tube 6, the second motor 202 stops rotating. At this time, the corn kernels in the hopper 3 flow downward, and the wind blown by the fan 5 blows the dust in the corn kernels into the first box body 101 through the first filter screen 103, and the wind will be discharged through the second filter screen 102. Since the density of the through holes on the surface of the second filter screen 102 is relatively small, the dust will remain in the first box body 101. This movement can filter the impurities in the corn kernels. After the corn kernels are filtered, the corn kernels will pass through the filter screen 103. The dust flowing out from the bottom of the hopper 3 can be collected. When it is necessary to clean the dust inside the first box body 101 or replace the first filter screen 103 and the second filter screen 102, turn the two bolts 104 to the right to remove the surface of the hopper 3 by the two bolts 104, and then pull the first box body 101 out of the slide groove 7 through the two raised parts on the surface, and then open the sliding door installed on the first box body 101 to clean the dust inside the first box body 101. At the same time, the first filter screen 103 and the second filter screen 102 can also be disassembled and replaced.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A discharge air selection device for a corn thresher, comprising a hopper (3) and a transverse plate (4), wherein the surface of the hopper (3) is fixedly connected to the surface of the transverse plate (4), characterized in that: The surface of the hopper (3) is provided with a corn threshing and discharging wind force regulating structure (2); the upper surface of the horizontal plate (4) is fixedly connected with a fan (5); the fan (5) is connected with a horizontal pipe (6); the horizontal pipe (6) penetrates the hopper (3) and is sealed with the hopper (3); the surface of the hopper (3) is provided with a corn threshing dust filtering structure (1); the hopper (3) is connected with an external corn thresher; the surface of the hopper (3) is processed with an opening; and the outer wall of the hopper (3) is processed with two slide grooves (7).

2. A discharge air separation device for a corn thresher according to claim 1, characterized in that: The corn threshing and discharging wind force regulating structure (2) comprises a second housing (201), the surface of the second housing (201) is fixedly connected to a motor (202) via a bracket, the output shaft of the motor (202) passes through the second housing (201) and is fixedly connected to a first gear (203) via an accelerator, the first gear (203) is meshedly connected to a second gear (204), the surface of the second gear (204) is rotatably connected to the inner wall of the second housing (201) via a pin, the surface of the second gear (204) is fixedly connected to a cross bar (205), and the end of the cross bar (205) is movably connected to the surface of a slider (206) via a pin.

3. A discharge air separation device for a corn thresher according to claim 2, characterized in that: The sliding block (206) is slidably engaged with a slide groove processed on the surface of the straight plate (8) via a surface protrusion, and the surface of the straight plate (8) is slidably connected with slideways processed on both sides of the inner wall of the second box body (201).

4. A discharge air separation device for a corn thresher according to claim 3, characterized in that: A square plate (9) is fixedly connected to the surface of the straight plate (8); the square plate (9) penetrates the second box body (201) and is slidably connected to the second box body (201).

5. A discharge air separation device for a corn thresher according to claim 4, characterized in that: The square plate (9) penetrates the transverse tube (6) and is slidably connected to the transverse tube (6), and the surface of the second box body (201) is fixedly connected to the surface of the hopper (3).

6. A discharge air separation device for a corn thresher according to claim 1, characterized in that: The corn threshing dust filtering structure (1) comprises a first box body (101), wherein the first box body (101) is slidably connected to a slide groove (7) via two raised portions on the surface, the two raised portions on the surface of the first box body (101) and the hopper (3) are both threadedly connected to a bolt (104), a first filter screen (103) is fixedly mounted on the left end of the first box body (101), a second filter screen (102) is mounted on the surface of the first box body (101), and a sliding door is mounted on the surface of the first box body (101).

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