CN115106285A - An edible bean vibrating screen mechanism - Google Patents

Abstract

The invention discloses a vibrating screen mechanism for edible beans, wherein a screen body of the vibrating screen mechanism comprises a bottom plate, side plates and a discharge hopper, wherein the bottom plate is inclined from an input end to an output end, the side plates surround three surfaces of the bottom plate, the discharge hopper is positioned at the outlet end of the bottom plate, the bottom plate is continuously provided with a plurality of material receiving sections along the conveying direction of materials, the output end of each material receiving section is lower than the input end, the input end of the next material receiving section is higher than the output end of the previous material receiving section, and further a plurality of continuous material receiving spaces with angular sections are formed, and the material receiving sections adapt to the periodic swinging of the screen body, so that the materials are conveyed from the previous material receiving section to the next material receiving section when swinging once until being output from the discharge hopper; connect the output end bottom of material section to be provided with the sieve mesh, arrange below the sieve mesh and accept the chamber to accept the chamber and externally connect the air exhauster through the pipeline, the impurity to material section bottom is taken away through the sieve mesh and is collected when the air exhauster during operation. The invention further improves the collection efficiency of impurities and ensures the yield of the subsequent material collection.

Description

An edible bean vibrating screen mechanism

technical field

The invention relates to an agricultural machinery and equipment, in particular to an edible bean vibrating screen mechanism.

Background technique

Edible beans are one of the three major edible crops for human beings (grain, edible beans and potatoes). Most of its bean seeds have irregular grain shapes and great differences in geometric dimensions, especially in the process of machine harvesting of special-shaped grains such as broad bean and kidney bean and soybean seeds with high moisture content, the grain damage and loss are particularly high, and the comprehensive loss rate (broken) of some models. , header and entrainment losses) higher than 30%.

The applicant has previously applied for a patent number of 202110849682.3, which is called an invention patent for a wind-speed broad bean combine harvester, in which a vibrating screen is disclosed. The unique take-off and jolt, which sends the broad bean grains to the outlet and effectively sieves them with the magazine. The sieved impurities are swept away by the upper fan, but a small amount of heavy and difficult to be swept away impurities are still It will be collected as the faba bean grains enter the follow-up institutions, so that impurities in the final faba bean grains will affect the color, and the staff will also need to be manually screened, which increases labor and labor costs.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a vibrating sieve mechanism for edible beans, wherein the vibrating state of the vibrating sieve is further provided with a lower screen material structure to screen out heavy impurities and improve the final grain collection. The finished product rate is reduced, and the possibility of manual screening of impurities in the subsequent sequence is reduced.

In order to achieve the above purpose, the present invention provides the following technical solutions: an edible bean vibrating sieve mechanism, comprising a sieve body, the input end of the sieve body is hinged to the lower end of the first connecting rod, and the output end of the sieve body is hinged to the lower end of the second connecting rod , the upper ends of the first connecting rod and the second connecting rod are hinged on the frame, the lower end of the first connecting rod is hinged with a long connecting rod, and the other end of the long connecting rod is connected to an eccentric wheel. When the eccentric wheel rotates, the screen body Periodic turbulence is performed to send the material on the screen body from the input end to the output end; the screen body includes a bottom plate inclined from the input end to the output end, side plates surrounded on three sides of the bottom plate, and a discharge hopper located at the outlet end of the bottom plate, the bottom plate Several feeding sections are continuously arranged along the conveying direction of the material, each feeding section is set so that the output end is lower than the input end, and the input end of the latter feeding section is higher than the output end of the previous feeding section, and then A number of continuous material receiving spaces with angular cross-sections are formed, and several material receiving sections are adapted to the periodic turbulence of the screen body, so that materials are transported from the previous receiving section to the next receiving section during a turbulent movement, until the material is moved from the outlet. The output of the hopper; the bottom of the output end of the receiving section is provided with a screen hole, and a receiving cavity is arranged below the screen hole, and the receiving cavity is connected to the external exhaust fan through the pipeline. collect.

As an improvement, a grid scraper is also provided at the bottom of the output end of the material receiving section. The grid scraper is correspondingly laid above the screen hole. Reciprocating shearing, impurities are agitated by grid scrapers and cut as they fall to the screen holes.

As an improvement, the drive mechanism includes a motor, a drive shaft and a drive gear, the motor is arranged on the outside of the screen body, the drive shaft is connected to the motor and is arranged on the side of the bottom plate along the conveying direction of the screen body, and the drive gear is arranged on the drive shaft, In addition, the number and position of the driving gears correspond to the grid scraper, one side of the grid scraper protrudes from the screen body, and a rack is arranged to engage with the driving gear for transmission.

As an improvement, the exhaust fan is arranged above the output end of the sieve body, and is used to extract and collect the impurities on the sieve body at the position covered by the exhaust fan.

As an improvement, the position of the screen body covered by the exhaust fan is provided with several stop bars at intervals along the conveying direction of the material. Above the connection position of the segment, it is used to block the material, so that the passing material is agitated.

As an improvement, the exhaust fan includes a fan body, a first air inlet chamber, a second air inlet chamber and a transverse air chamber. The opening of the first air inlet chamber is arranged downward facing the screen body, and the opening side of the second air inlet chamber The external connection pipeline is arranged to be connected to the receiving cavity. The first air inlet cavity and the second air inlet cavity converge to the transverse ventilation cavity and lead to the horizontal fan body. The fan body is provided with a filter screen for blocking impurities. A collection cavity for collecting impurities is arranged below the horizontal ventilation cavity corresponding to the filter screen, and the mouth of the collection cavity is provided with an overturned door that is turned downward for opening and closing.

The beneficial effect of the present invention is that through the design of the specific sieve body structure and the periodic vibration of the vibrating screen, the materials on the sieve body can be transported to the output end in an orderly manner, and the materials can be turned over effectively in each receiving space. , so that the impurities in it are squeezed and broken during the process of turning and stirring, which is more beneficial to be collected by the exhaust fan set above the output end in the prior art; The bottom of each receiving section can be collected by the exhaust fan at the sieve hole; the multi-section receiving section ensures that the impurities are fully squeezed and broken during the conveying process or reach the sieve hole, which improves the success rate of impurity removal. The material output from the discharge hopper contains less impurities, improves the yield of the subsequent material, that is, the edible beans after collection, and reduces the possibility of manual screening of impurities in the subsequent sequence.

Description of drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 2 is a schematic diagram of a longitudinal cross-sectional structure and a partial enlarged view of the sieve body of the present invention.

FIG. 3 is a schematic structural diagram of a screen hole and a grid scraper of the present invention.

FIG. 4 is a schematic structural diagram of a grid scraper and a driving mechanism of the present invention.

FIG. 5 is a schematic structural diagram of the exhaust fan of the present invention.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1, 2, 3, 4, and 5, it is a specific embodiment of the edible bean vibrating screen mechanism of the present invention, which comprises a screen body 1, the input end of the screen body 1 is hinged to the lower end of the first connecting rod 11, and the screen body The output end of 1 is hinged to the lower end of the second link 12, the upper ends of the first link 11 and the second link 12 are hinged on the frame, the lower end of the first link 11 is hinged with a long link 13, and the long link The other end of 11 is connected to an eccentric wheel 14. When the eccentric wheel 14 rotates, the sieve body 1 will periodically vibrate, and the material on the sieve body 1 will be sent from the input end to the output end; The bottom plate 2 with inclined ends, the side plates 3 surrounding the three sides of the bottom plate 2, and the discharge hopper 4 located at the outlet end of the bottom plate 2. The bottom plate 2 is continuously provided with a number of feeding sections 21 along the conveying direction of the material, and each feeding section 21 It is set so that the output end is lower than the input end, and the input end of the following material receiving section 21 is higher than the output end of the previous material receiving section 21, thereby forming several continuous material receiving spaces 22 with an angular cross-section, and several material receiving sections 22 are formed. The section 21 is adapted to the periodic vibration of the screen body 1, so that the material is conveyed from the previous receiving section 21 to the rear receiving section 21 during one vibration, until it is output from the discharge hopper 4; the bottom of the output end of the receiving section 21 is set There is a sieve hole 23, a receiving cavity 24 is arranged below the sieve hole 23, and the receiving cavity 24 is externally connected to the exhaust fan 5 through a pipeline.

When the present invention is in use, the overall edible bean combine harvester can refer to the invention patent previously applied by the applicant, the patent number is 202110849682.3, and the patent number is 202110783112.9, the name is an invention patent of a wind-speed broad bean combine harvester, and the patent number is 202110783112.9 Invention patent of a pneumatic conveying edible bean combine harvester. In the present invention, a threshing mechanism is placed above the input end of the sieve body 1, and the threshing mechanism separates the edible bean grains (hereinafter referred to as materials) and the shell of the pods (hereinafter referred to as impurities). The invention patent, that is, relying on the first connecting rod 11 and the second connecting rod 12 to hinge the screen body 1 to maintain its turbulent structure, relying on the driving motor to drive the rotation of the eccentric wheel 14, and the eccentric wheel 14 drives the long connecting rod 11 to do periodic Swing, and then drive the first connecting rod 11, that is, the input end of the screen body 1, to oscillate, and the materials and impurities are periodically transported to the output end. As an improvement, several continuous feeding sections 21 are adapted to the pitching amplitude of the screen body 1, so that the materials and impurities in the previous feeding space 22 can be vibrated and conveyed to the next feeding when the screen body 1 is vibrating. Space 22: During the turbulence of materials and impurities, due to the height difference between the front and rear receiving spaces 22, the effect of turning and stirring is generated, so that the materials and impurities can be effectively changed in position, and the impurities can be effectively squeezed during this process. Crushing, on the one hand, the impurities are turned over, and on the other hand, the size of the impurities becomes smaller, and the exhaust fan set above the output end of the screen body 1 can more effectively remove and collect the impurities. Some heavy impurities cannot be effectively turned over during the entire conveying process, but only pass through each feeding section 21 at the bottom along with the turbulent movement. When such impurities reach the bottom of each feeding section 21, they can be The sieve hole 23 is collected by the exhaust fan 5, and the multi-stage material receiving section 2 ensures that the impurities are fully squeezed and broken during the conveying process or reach the sieve hole 23, which improves the success rate of impurity removal. 4. The output material contains less impurities, and the material falls into the horizontal air duct 01. The blower 0 on one side of the horizontal air duct 01 blows the material to the conveying pipe 02 on the other side. The conveying pipe 02 is set vertically, and the upper part is Storage bin 03, the final collection of materials can be well achieved by relying on wind power, and the further structural design of the vibrating screen mechanism can further improve the removal efficiency of impurities, improve the yield of the final collected materials, and reduce the possibility of manual screening of impurities in the subsequent sequence. . Further, the receiving cavity 24 is arranged below the screen hole 23 for the collection and transportation of impurities. Multiple receiving cavities 24 can be connected to the pipeline from the side and connected to the exhaust fan 5 through the confluence, and then all the exhaust positions are completed by one power source. collected by adsorption of impurities.

As an improved specific embodiment, the bottom of the output end of the material receiving section 21 is also provided with a grid scraper 25, the grid scraper 25 is correspondingly laid above the screen hole 23, and the grid scraper 25 is connected with the driving mechanism 6 to reciprocate The movement causes the grid scraper 25 and the screen hole 23 to perform reciprocating shearing, and the impurities are stirred by the grid scraper 25 and cut when falling to the screen hole 23 .

As shown in Figures 2 and 3, the impurities that cannot be effectively stirred and squeezed are generally in a state of large volume and heavy weight. After reaching the screen hole 23 at the bottom of the output end of the receiving section 21, it may The large volume is blocked and cannot pass through the screen hole 23 and fall into the receiving cavity 24, or the suction of the suction fan 5 is unsuccessful because of the blocking; The structure of the spaced plate and the gap is formed. After being fitted with the screen hole 23, it forms a knife structure such as shearing. When the impurities reach the grid scraper 25 and the screen hole 23, as long as the impurities are stuck in the grid scraper The gap between the plate 25 and the sieve hole 23 can be chopped up by starting the driving mechanism 6 to make the grid scraper 25 reciprocate, so that the chopped impurities can pass through the sieve hole 23 and fall to the receiving cavity 24 more smoothly. It can be sucked more smoothly by the exhaust fan 5; even if a grid scraper 25 and sieve holes 23 fail to completely crush and collect impurities, the smaller impurities can be better removed in the process of backward transportation. Flip and stir, or continue to cut into small pieces, and be suctioned by the collection position above or below the subsequent sequence to complete the collection, thereby further improving the removal efficiency of impurities. In the dimension design, the gap of the grid scraper 25 and the aperture of the sieve hole 23 are both smaller than the size of the material, that is, the specific edible bean, so that the material will not be hurt during the conveying process.

As an improved specific embodiment, the driving mechanism 6 includes a motor 61 , a driving shaft 62 and a driving gear 63 . The motor 61 is arranged outside the screen body 1 , and the driving shaft 62 is connected to the motor 61 and is arranged along the conveying direction of the screen body 1 at the On the side of the bottom plate 2, the driving gear 63 is arranged on the driving shaft 62, and the number and position of the driving gear 63 correspond to the grid scraper 25. One side of the grid scraper 25 protrudes from the screen body 1 and is provided with a rack. 64 meshes with the drive gear 63 for transmission.

As shown in FIG. 4 , the motor 61 can be installed on one side of the sieve body 1, the drive shaft 62 is arranged along the conveying direction of the sieve body 1, and because of its long length, it can be installed at multiple positions outside the sieve body 1 The drive shaft 62 is provided with driving gears 63 corresponding to the number and position of the grid scrapers 25, and each grid scraper 25 protrudes from the side of the screen body 1. Part of the installation teeth The bar 64 realizes the synchronous drive of all the grid scrapers 25 through the gear rack 64 and the driving gear 63, and realizes the reciprocating shearing of the grid scrapers 25 through the forward and reverse rotation of the motor 61 . The above design of the driving mechanism 6 completes the driving of all the grid scrapers 25 through one power source. The simplification of the structure leads to the reduction of the occupied space and the reduction of the weight of the mechanism, which is more conducive to the lightening and miniaturization of the whole machine mechanism. It is convenient to maintain, repair and replace components, and control the overall cost.

As an improved specific embodiment, the exhaust fan 5 is arranged above the output end of the sieve body 1, and at the same time is used to extract and collect the impurities on the sieve body 1 at the position covered by the exhaust fan 5.

As shown in Figure 2, in the above embodiment, a suction fan 5 is used to suction impurities on the sieve body 1, which is arranged above the output end of the sieve body 1. Reference can be made to the applicant's previous invention patent to achieve The impurities on the sieve body 1 at the position covered by the exhaust fan 5 are extracted upward and collected; on the other hand, the pipeline is extended through the branch to extend to each receiving cavity 24, so as to realize the suction and collection of impurities corresponding to the sieve holes 23 Work, simplify the power source, facilitate maintenance and repair and replacement of components, and control the overall cost.

As an improved specific embodiment, the position of the screen body 1 covered by the exhaust fan 5 is provided with several blocking rods 7 at intervals along the conveying direction of the material. The upper part of the connection position of the material receiving section 21 and the following material receiving section 21 is used to block the material, so that the passing material is agitated.

As shown in FIG. 2 , the setting of the gear lever 7 is to block the materials and impurities when the materials and impurities are conveyed from the previous receiving section 21 to the following receiving section 21 by turbulence, and then the materials and impurities need to be turned over or The mutual agitation crosses the stop lever 7, and at this time, a stirring and flipping effect can be produced on the impurities, which is more conducive to the smooth suction of the impurities by the upper exhaust fan 5, so as to avoid some impurities being pressed under the material during the conveying process. The situation of extraction occurs, and the efficiency of impurity collection is improved. The multi-position stop lever 7 also enables the screen body 1 covered by the exhaust fan 5 to be able to turn over the materials and impurities due to the function of the stop lever 7 to improve the suction effect of impurities.

As an improved specific embodiment, the exhaust fan 5 includes a fan body 51, a first air inlet chamber 52, a second air inlet chamber 53 and a transverse air chamber 54, and the opening of the first air inlet chamber 52 is arranged downward facing the screen Body 1, the opening of the second air inlet chamber 53 is arranged laterally and the external connection pipeline is connected to the receiving chamber 24, the first air inlet chamber 52 and the second air inlet chamber 53 converge to the transverse air chamber 54 and lead to the horizontal fan The main body 51, the fan body 51 is provided with a filter screen 55 for blocking impurities, and a collection cavity 56 for collecting impurities is set below the horizontal ventilation cavity 54 corresponding to the filter screen 55, and the mouth of the collection cavity 56 is set to be turned downward. Flip door 57 that opens and closes.

As shown in FIG. 5 , the first air inlet chamber 52 and the second air inlet chamber 53 are respectively set to achieve their respective functions, and the transverse air chamber 54 merges the first air inlet chamber 52 and the second air inlet chamber 53 and leads to the fan The body 51 is powered by the fan body 51, and the horizontal ventilation cavity 54 is arranged horizontally. The impurities are sucked to the end of the fan body 51, and the filter screen 55 blocks the impurities to prevent the fan body 51 from being damaged; accumulation will occur after the accumulation of impurities Affecting the ventilation effect, it can be started and stopped periodically, and the collection cavity 56 can take over the impurities for collection when it stops. A flip door 57 is set at the mouth of the collection chamber 56. When the fan body 51 is opened, it is closed without affecting the normal pipeline flow of the wind. After the fan body 51 is closed, the flip door 57 can be turned down and opened by control, and impurities can fall to the direction of the flow. In the collection chamber 56, the overturn door 57 is closed again after the collection of impurities is completed; such a setting of the overturn door 57 is conducive to the smooth falling of impurities without accumulation.

The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (6)

1. The vibrating sieve mechanism for the edible beans comprises a sieve body (1), wherein the input end of the sieve body (1) is hinged with the lower end of a first connecting rod (11), the output end of the sieve body (1) is hinged with the lower end of a second connecting rod (12), the upper ends of the first connecting rod (11) and the second connecting rod (12) are hinged on a rack, the lower end of the first connecting rod (11) is hinged with a long connecting rod (13), the other end of the long connecting rod (11) is connected to an eccentric wheel (14), the sieve body (1) periodically shakes when the eccentric wheel (14) rotates, and materials on the sieve body (1) are conveyed from the input end to the output end;

the method is characterized in that: the screen body (1) comprises a bottom plate (2) inclined from an input end to an output end, side plates (3) surrounding three surfaces of the bottom plate (2) and a discharge hopper (4) positioned at an outlet end of the bottom plate (2), the bottom plate (2) is continuously provided with a plurality of material receiving sections (21) along the conveying direction of materials, each material receiving section (21) is set to be lower than the input end in output end, the input end of the next material receiving section (21) is higher than the output end of the previous material receiving section (21), so that a plurality of continuous material receiving spaces (22) with angular cross sections are formed, the plurality of material receiving sections (21) are adapted to the periodic shaking of the screen body (1), and materials are conveyed from the previous material receiving section (21) to the next material receiving section (21) until being output from the discharge hopper (4) when the material is shaken for one time; the sieve mesh (23) is arranged at the bottom of the output end of the material receiving section (21), a receiving cavity (24) is arranged below the sieve mesh (23), the receiving cavity (24) is externally connected with the exhaust fan (5) through a pipeline, and impurities at the bottom of the material receiving section (21) are pumped away and collected through the sieve mesh (23) when the exhaust fan (5) works.

2. The vibratory sieve mechanism for edible beans according to claim 1, further comprising: the bottom of the output end of the material receiving section (21) is also provided with a grid scraper (25), the grid scraper (25) is correspondingly paved above the sieve holes (23), the grid scraper (25) is connected with a driving mechanism (6) to do reciprocating motion, so that the grid scraper (25) and the sieve holes (23) do reciprocating shearing, and impurities are stirred by the grid scraper (25) and are cut when falling to the sieve holes (23).

3. The vibrating food bean screen mechanism as recited in claim 2, wherein: the driving mechanism (6) comprises a motor (61), a driving shaft (62) and a driving gear (63), the motor (61) is arranged on the outer side of the screen body (1), the driving shaft (62) is connected with the motor (61) and is arranged on the side edge of the bottom plate (2) along the conveying direction of the screen body (1), the driving gear (63) is arranged on the driving shaft (62), the number and the positions of the driving gear (63) correspond to the grid scraping plates (25), one side of each grid scraping plate (25) extends out of the screen body (1) and is provided with a rack (64) which is in meshing transmission with the driving gear (63).

4. A vibrating food bean screen mechanism as claimed in claim 1, 2 or 3, wherein: the exhaust fan (5) is arranged above the output end of the screen body (1) and is used for upwards pumping away and collecting impurities on the screen body (1) at the position covered by the exhaust fan (5).

5. The vibrating food bean screen mechanism as recited in claim 4, wherein: the sieve body (1) covered by the exhaust fan (5) is provided with a plurality of blocking rods (7) at intervals along the conveying direction of materials, the blocking rods (7) are perpendicular to the conveying direction of the materials and are positioned above the connecting position of the previous material receiving section (21) and the next material receiving section (21) and used for blocking the materials and stirring the passing materials.

6. The vibrating food bean screen mechanism as recited in claim 4, wherein: air exhauster (5) include fan body (51), first air inlet chamber (52), second air inlet chamber (53) and violently ventilate chamber (54), the opening of first air inlet chamber (52) is arranged downwards just to screen frame (1), the opening lateral arrangement of second air inlet chamber (53) communicates to accepting chamber (24) to external connecting line, first air inlet chamber (52) and second air inlet chamber (53) are assembled to violently ventilate chamber (54) and are led to horizontal fan body (51), set up filter screen (55) that are used for blockking impurity on fan body (51) to below that violently ventilates chamber (54) corresponds filter screen (55) sets up collection chamber (56) that are used for collecting impurity, the oral area of collecting chamber (56) sets up upset door (57) that turn over downwards and open and close.

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