CN205902424U - Sorting unit and wind guiding mechanism thereof - Google Patents

Abstract

The utility model provides a sorting device and an air guide mechanism thereof, which are used in a harvester, and are characterized in that it comprises: a threshing device, used for preliminary sorting harvested crops to obtain a mixture of crop grains; Mechanism for further sorting crop grains and mixtures thereof; and an installation casing, the threshing device and the air guide mechanism are all installed in the installation casing, for the harvested crops grains and mixtures thereof Sorting, wherein, the air guide mechanism further includes: at least one fan, the fan is installed in the installation casing; and at least one air guide plate, the air guide plate is movably installed in the The casing is installed and placed at the air outlet of the fan, and an air guide channel is formed between at least one of the wind deflectors and the casing of the fan to guide the airflow generated by the fan to the Multiple target parts of the vibrating screen.

Description

Sorting device and its air guiding mechanism

technical field

The utility model relates to a sorting device, in particular to a sorting device and an air guide mechanism for a harvester used for sorting grains and other mixtures of harvested crops.

Background technique

Whether in the era of relatively scarce materials or the era of abundant materials, agricultural issues have always been the top priority of people's livelihood issues. Therefore, it has far-reaching significance to better improve the efficiency and quality of agricultural construction operations.

Agricultural mechanization realizes that machines replace hand tools and animal power farm tools to handle agricultural work, and continuously improve the level of agricultural production technology and economic and ecological benefits. For example, in the planting industry, tractors, seeders, harvesters, power irrigation and drainage machines, motor vehicles, etc. are used to perform various operations such as land plowing, sowing, harvesting, irrigation, field management, and transportation, so that the entire production process mainly relies on mechanical power. And electricity, rather than relying on human and animal power to complete. The combine harvester, after relying on mechanical power to harvest the crops, can further use the difference in physical and mechanical properties to sort the harvested crop grains, straw and other sundries. Among them, the cleaning devices for threshing and cleaning of crop sorting operations can be divided into air-flow type, sieve-type or sieve-air-flow combined cleaning devices to sort the mixture obtained by the first device. Among them, the air-flow type cleaning device Sorting is carried out according to the different aerodynamic characteristics of the components of the mixture, while the sieve-type cleaning device sorts the components according to their particle shapes. The airflow of various airflow-type or including airflow-type cleaning devices is provided by fans, including centrifugal fans, axial fans and cross-flow fans. However, the above-mentioned fan still has deficiencies to varying degrees in the application process. During the use of the centrifugal fan, the airflow distribution is uneven. Therefore, generally, multiple fans are arranged to uniform the airflow, and the control surface is large. Axial flow fan, the air distribution is uniform, but the control area is small. Cross-flow fan, the air flow is evenly distributed in the horizontal direction, the power consumption is small, but the structure is complex and the manufacturing cost is high. In addition, due to the difference between the airflow velocity and the suspension velocity between the grain and straw and other substances, the airflow type or airflow type cleaning device sorts the grains and debris, and the wind direction, wind direction, and The wind force remains unchanged, that is to say, all kinds of airflow or airflow cleaning fans can only provide one airflow speed when working, and the direction of the airflow provided is always the same. Therefore, the traditional airflow or airflow Air-flow cleaning fans cannot provide different wind forces and/or wind directions according to the physical properties of harvested crops, such as suspension speed, or natural environmental factors, such as climate reasons. In addition, there are differences in the strength of the airflow distributed in the airflow control surface, that is to say, the various parts in the control surface are unevenly distributed according to the strength of the airflow, and the effects of sorting crop grains and their mixtures in each part are also different. Therefore, there is still insufficient collection of grains of various crops.

In view of the above-mentioned deficiencies, therefore, a kind of sorting device of the harvester that can solve the above-mentioned problems on the basis of controlling the manufacturing cost needs to be proposed urgently.

Utility model content

One object of the present utility model is to provide a sorting device, which is used in a harvester to sort grains and other mixtures of harvested crops, wherein the other mixtures include crop stalks and soil and other sundries .

Another object of the present utility model is to provide a sorting device, the sorting device includes at least one wind deflector and a vibrating screen, the airflow generated by the fan can be purposefully directed to each part of the vibrating screen, According to the physical properties of the grains of the crops, the grains of the crops and their mixtures are sorted.

Another object of the present utility model is to provide a sorting device, the airflow generated by the fan can be concentratedly directed to a part of the vibrating screen, so as to classify the grains of the crops and their mixture according to the physical properties of the grains of the crops. Choose a job.

Another object of the present utility model is to provide a sorting device, an air guide channel is formed between at least the air guide plate and the casing of the fan, the sorting device includes a plurality of the air guide channels, The airflow generated by the fan is guided to the target position of the vibrating screen, wherein the direction of the air guiding channel is consistent with the direction in which the airflow generated by the fan is directed.

Another object of the present invention is to provide a sorting device, the air guide plate can be adjusted to provide the air guide channel with various orientations.

Another object of the present utility model is to provide a sorting device. The sorting device can provide the air guides with different orientations by controlling the air guide plate under the premise that the power of the fan is consistent, so as to realize centralized Or evenly guide the airflow generated by the fan to various parts of the vibrating screen.

In order to achieve the above object, the utility model provides a sorting device, which is used for harvesters to sort grains and other mixtures of harvested crops, and the sorting device includes:

a threshing device for preliminary sorting of harvested crops to obtain a mixture of crop grains;

an air guide mechanism for further sorting the grain of the crop and its mixture; and

An installation casing, the threshing device and the air guide mechanism are all installed in the installation casing, and the grains of the harvested crops and their mixture are sorted, wherein the air guide mechanism further includes:

at least one fan mounted to the mounting enclosure; and

At least one wind deflector, the wind deflector is movably installed on the installation casing, and is placed at the air outlet of the fan, between at least one of the wind deflector and the casing of the fan An air guide channel is formed between them to guide the airflow generated by the fan to multiple target positions of the vibrating screen.

Preferably, the installation casing further includes a set of partitions, each of which defines a first accommodating chamber and a second accommodating chamber, and the threshing device and the air guiding mechanism are respectively placed in the second accommodating chamber. A storage chamber and the second storage chamber, the two ends of the air deflector are screwed to the partition plate forming the second storage chamber, so as to be rotatably placed at the air outlet of the fan, changing The orientation of the air guide channel guides the airflow generated by the fan to multiple target positions of the vibrating screen.

Preferably, by rotating the air deflector, multiple air guide channels can guide the airflow generated by the fan to the same target position of the vibrating screen at the same time, and can also guide the airflow generated by the fan to the vibrating screen. Multiple target sites for sieves.

Preferably, the air deflector further includes at least one guide, an air leaf and a fixed shaft, the air leaf has at least one air guide, and at least one air guide is formed between the casing of the fan and the air guide. For the air guide channel, the guide member is integrally connected to the air leaf and arranged on the edge of the air guide port to gather the airflow flowing out of the air guide channel, and the air leaf is fixedly connected to The fixed shaft, the two ends of the fixed shaft are provided with threads, the partition plate forming the second accommodating cavity has at least two fixed holes, and the two ends of the fixed shaft are screwed to the fixed shaft through the fixed holes. The partition plate is placed at the air outlet of the fan, wherein, the two ends of the fixed shaft are respectively fixed by a connecting piece of the wind deflector from the outside of the first accommodating cavity, and the The orientation of the air duct.

Preferably, the wind deflector further includes a wind leaf and a fixed shaft, the wind leaf is fixedly connected to the fixed shaft, and the two ends of the fixed shaft are provided with threads to form the second accommodating cavity The baffle has at least two fixing holes, and the two ends of the fixing shaft are screwed to the baffle through the fixing holes and placed at the air outlet of the fan, wherein the two ends of the fixing shaft Each of them is fixed from the outside of the first accommodating chamber by a connecting piece of the air deflector to fix the direction of the air guide channel.

Preferably, the installation housing further includes a concave plate, the concave plate is arranged between the first accommodation chamber and the second accommodation chamber, and the crop grains and their grains initially sorted by the threshing device The mixture enters the second accommodating chamber through the communicating hole of the concave plate to be further sorted under the action of the air guiding mechanism.

Preferably, the partition forms at least one integrated groove and the bottom of the second storage chamber, and the sorting device further includes a cleaning device, and the cleaning device includes a wind guide mechanism, wherein the The cleaning device further includes at least one auger, and each auger is respectively arranged in the integration tank, so as to separately collect the further sorted crop grains and the mixture thereof.

Preferably, the partitions near the auger are respectively arranged in a slope shape, so that the sorted crop grains and the mixture thereof are respectively introduced into the auger and collected.

Preferably, the fixing hole is arranged on the partition plate near the air outlet of the fan, and the diameter of the fixing hole is slightly larger than the diameters at both ends of the fixing shaft.

Preferably, the connectors are threadedly connected to both ends of the fixed shaft, and when each of the connectors rotates along the two ends of the fixed shaft and presses on the partition respectively, the air guiding The plate maintains a desired state on the partition and keeps the direction of the air guide channel unchanged; when each of the connecting parts rotates along the two ends of the fixed shaft, the pressure on the partition is respectively reduced When , the fixed shaft can be rotated to change the orientation of the air guide duct.

Preferably, the connecting member is a nut, and the vibrating screen can move back and forth in at least two dimensions.

In addition, the utility model also provides an air guiding mechanism for a sorting device of a harvester, including:

at least one fan mounted on the harvester's mounting casing, wherein the fan has an air outlet; and

At least one air deflector is movably installed on the installation casing and placed at the air outlet of the fan, forming an air guide between at least one of the air deflectors and the casing of the fan , so as to guide the airflow generated by the fan to multiple target positions of the vibrating screen of the harvester.

Preferably, both ends of the air deflector are rotatably connected to the installation casing and are rotatably placed at the air outlet of the fan, respectively changing the direction of each air guide channel, so that the fan The resulting airflow is directed to multiple target locations of the vibrating screen.

Preferably, both ends of the air deflector are rotatably connected to the installation casing and are rotatably arranged at the air outlet of the fan, so as to change the direction of the air guide channel, so that the airflow generated by the fan Guided to multiple target locations of the vibrating screen.

Preferably, the wind deflector further includes a wind leaf and a fixed shaft, the wind leaf is fixedly connected to the fixed shaft, and both ends of the fixed shaft are screwed to the installation casing and placed The air outlet of the fan, wherein, both ends of the fixed shaft are respectively fixed to the installation casing through a connecting piece to fix the orientation of the air guide duct.

Preferably, the air deflector further includes at least one guide, an air leaf and a fixed shaft, the air leaf has at least one air guide, and at least one air guide is formed between the casing of the fan and the air guide. The air guide channel, the guide is integrally connected to the air leaf and arranged on the edge of the air guide port, the air leaf is fixedly connected to the fixed shaft, and the two ends of the fixed shaft are threaded It is connected to the partition and placed at the air outlet of the fan, wherein both ends of the fixed shaft are fixed to the installation casing through a connecting piece of the air deflector to fix the air deflector road orientation.

Preferably, the connectors are threadedly connected to both ends of the fixed shaft, and when each of the connectors rotates along the two ends of the fixed shaft and respectively applies pressure to the installation case, the wind guide The plate maintains a desired state at the air outlet of the fan, and keeps the direction of the air guide channel unchanged; when the connecting piece rotates along the two ends of the fixed shaft, the impact on the installation casing is respectively reduced. When pressure is applied, the fixed shaft can be rotated to change the orientation of the air guiding channel.

Description of drawings

As shown in Figure 1, it is a cross-sectional view of a preferred embodiment of the sorting device of the present invention.

As shown in Figure 2, it is a cross-sectional view of a working state of a preferred embodiment of the sorting device of the present invention.

As shown in Fig. 3, it is another working state cross-sectional view of the partial structure of the sorting device of the present invention.

As shown in Fig. 4, it is a schematic diagram of a partial structure of the sorting device of the present invention.

FIG. 5 is a schematic diagram of an alternative mode of the sorting device of the present invention.

detailed description

According to the claims of the utility model and the contents disclosed in the specification, the technical solution of the utility model is specifically described as follows.

The utility model provides a sorting device 100. The sorting device 100 is suitable for various harvesters to sort the harvested crop plants to obtain crop grains, that is, to sort the harvested crop grains and their mixture. , wherein the above-mentioned mixture refers to crop straw and soil mixed therein. Preferably, the sorting device 100 can be adjusted for crop grains with different physical properties to provide different sorting conditions, so as to efficiently and high-quality sort crop grains and their mixtures.

Specifically, as shown in Figures 1 to 4, the sorting device 100 further includes a threshing device 10, a cleaning device 20 and an installation casing 30, the threshing device 10 and the cleaning device 20 are all It is installed in the installation case 30. The threshing device 10 is used for preliminary sorting of the harvested crops, so as to thresh the grains of the crops from the straw, and obtain the grains of the crops and its mixture, wherein the mixture of the grains of the crops includes a small amount of straw and soil of a crop and other materials, and further provide the mixture of collected crop grains and a small amount of straw to the cleaning device 20 . The cleaning device 20 is used for further sorting the mixture of crop grains and stalks to obtain relatively pure crop grains and stalks.

As shown in Fig. 2 and Fig. 3, the installation casing 30 further includes a set of partitions 32 and a recessed plate 33, the partitions 32 define a first accommodating chamber 301 and a second accommodating chamber 302, the The cleaning device 20 is placed in the second accommodating chamber 302 , and the threshing device 10 is placed in the first accommodating chamber 301 . The concave plate 33 is installed on the partition plate 32 and communicates with the first receiving chamber 301 and the second receiving chamber 302 . The concave plate 33 has a plurality of communicating holes 303 through which the mixture of crop grains and a small amount of straw obtained by the threshing device 20 passes through the communicating holes 303 from the first accommodation chamber 301 to the second accommodation chamber 302 , to further separate crop grains from a small amount of straw through the cleaning device 20 . That is to say, the first storage chamber 301 communicates with the second storage chamber 302 through the communication hole 303 . Wherein, the stalks of the crops whose grains have been substantially removed by the threshing device 10 are directly discharged from the first accommodation chamber 301 , that is to say, the straws of the crops whose grains have been substantially removed do not enter the second accommodation chamber 302 , and the threshing system 100 is directly discharged from the first storage chamber 301, so as to control the mixture of crop grains and straw processed by the threshing device 20, and reduce the amount of straw as much as possible.

The cleaning device 20 further includes an air guiding mechanism 21, a vibrating screen 22 and at least two augers 23, the air guiding mechanism 21 and the vibrating screen 22 are installed on the partition of the installation cabinet 30 plate 32, the vibrating screen 22 is installed under the concave plate 33, and then, the mixture of crop grains and a small amount of straw processed by the threshing device 10 can pass through the communication hole 303 and then fall under the action of gravity In the vibrating screen 22. The air guide structure 21 includes at least one fan 201 and at least one air guide plate 24, wherein the fan 202 has an air outlet, and the air guide plate 24 is movably installed on the partition plate 32 to be placed At the air outlet of the fan 202 , an air guide channel 201 is defined between at least one of the air guide plates 24 and the casing of the fan 202 . The airflow generated by the fan 202 , that is, the wind, can be drawn out from the air guiding channel 201 so that the airflow flows to the screen surface of the vibrating screen 23 . Wherein, the direction of the airflow drawn out through the air guide channel 201 is consistent with the orientation of the air guide channel 201 . Each auger 23 is installed at the bottom of the second accommodating chamber 302 to finally collect the mixture of sorted crop grains and stalks. Wherein, the vibrating screen 23 reciprocates at least in a two-dimensional direction under the action of the motor, so as to facilitate the mixture of crop grains and a small amount of straw entering the second accommodating cavity 302 through the communication hole 303 to pass through the vibration. The meshes of the sieve 22 fall into the bottom of the second containing chamber 302 after being filtered, and are collected by the auger 23 .

The airflow generated by the fan 202 can be guided by the air deflector 24, and blown to the front and/or middle and/or rear of the vibrating screen 22 by the air guiding channel 201, so as to unite the vibrating screen 22 Sorting the mixture of grains and straws of crops. Preferably, in this preferred embodiment, the vibrating screen 22 has at least two screen surfaces arranged up and down, and each screen surface has a plurality of screen holes, and then, when the airflow generated by the fan 202 blows to the vibrating screen At 22 o'clock, the airflow can pass through the screen holes of the vibrating screen 22 and walk between each screen surface and each screen surface. When the mixture of crop grains and stalks is located on each sieve surface and/or between each sieve surface, the airflow generated by the fan 202 can act on the mixture of crop grains and stalks. Since the suspension speeds between the grains of the crops and the stalks and other substances are inconsistent, the grains of the crops and the stalks and other substances will be blown to different positions under the action of the airflow generated by the fan 202, such as the grains of the general crops. The suspension speed is greater than the air velocity, and the grains of the crops will not be displaced under the action of the airflow generated by the fan 202, or only a small displacement will occur, so that the grains of the crops will mainly fall into the front part of the vibrating screen 22 And middle part, and further collect by described auger 23. And mixtures such as straw and small particle earth, because its suspending velocity is less than the suspension velocity of the airflow that described blower fan 202 produces, then straw and small particle earth etc. are mixed and will be blown to the place under the effect of the airflow that described blower fan 202 produces. The rear portion of the vibrating screen 22, and collected by the auger 23. Therefore, for the airflow type or the harvester including the airflow type cleaning device, the size and flow direction of the airflow play a crucial role in the sorting of crop grains and mixtures thereof. Because the airflow produced by the fan 202 of the traditional cleaning device 100 is directed to the screen surface of the vibrating screen 22 through the casing of the fan 202, the airflow produced by the fan 202 is fixed in direction and size, and the airflow produced It cannot be adjusted according to the physical characteristics of the grains and straws of the harvested crops. For example, when the suspension speeds of the straws and grains of the crops are relatively close, it is impossible to increase the control area of the airflow to help separate the straws and grains of the crops; When the suspension velocity of the straw and grain differs greatly, the airflow that cannot be concentrated is more conducive to the separation of the straw and grain of the crop. Preferably, as shown in FIG. 4 , in this preferred embodiment, the wind deflector 24 can be manually adjusted, so that the airflow generated by the fan 202 is purposefully guided to the screen surface of the vibrating screen 22 , including increasing or decreasing the control area of the airflow generated by the fan 202, and increasing or decreasing the speed of the airflow. As shown in Fig. 2 and Fig. 3, the airflow generated by the blades of the fan 202 is purposefully guided to the screen surface of the vibrating screen 22 by adjusting the deflector 24, so that the airflow can be distributed on the vibrating screen. When the front, middle and rear of the sieve, under the premise of being equipped with the fan 202 with a certain power, the airflow distribution area is increased, that is, the control area of the fan 202 is increased, and the net yield of the harvested crop grains is improved. Spend. Thus, according to the characteristics of the harvested crops, the mixture of its grain and straw and other substances is screened. Among them, the characteristics of the crop include the suspension speed of the grain, the difficulty of threshing the grain and straw, and the purity requirements of the collected grain. By adjusting the wind deflector 24, the airflow generated by the blades of the fan 202 is purposefully guided to the screen surface of the vibrating screen 22, so that the airflow can be distributed in the front and middle of the vibrating screen 22, It is possible to separate the mixture of crop grains and stalks placed in the front and middle of the vibrating screen 22 . For example, when the grains of the harvested crops are easy to be threshed, that is to say, when the grains of the crops obtained by the threshing device 10 are mainly concentrated in the front and middle of the vibrating screen 22, by adjusting each of the guides The wind plate 24 is used to guide the airflow generated by the blades of the fan 202 to the front and middle of the vibrating screen 22, so as to make full use of the airflow generated by the fan 202 to sort the grains of the collected crops . In the same way, the airflow generated by the blades of the fan 202 is purposefully directed to the screen surface of the vibrating screen 22 by adjusting the wind deflector 24, so that the airflow can be distributed in the middle and rear of the vibrating screen At this time, it is possible to separate mixtures such as grains and stalks of crops that are placed in the middle of the vibrating screen 22 and supplemented later. For example, when the grains of the harvested crops are not easy to be threshed, that is to say, the grains of the crops obtained by the threshing device 10 are mainly concentrated in the middle and rear of the vibrating screen 22, by adjusting each of the The wind deflector 24 is used to guide the air flow produced by the blades of the blower fan 202 to the middle and rear of the vibrating screen 22, so as to make full use of the air flow produced by the blower fan 202 to wind the grains of the collected crops. select. Wherein, each auger 23 is arranged in each integration groove 320 formed by the partition plate 32 at the bottom of the second accommodation chamber 302, so as to collect the grain and straw of the crops falling into each integration groove 320, etc. . It is worth mentioning that the partitions 32 around the integration tanks 320 are respectively arranged in a slope shape, so as to facilitate placing the sorted crop grains and straw and other mixtures in the integration tanks 320 respectively, and further utilize the Said auger 23 collects.

As shown in FIG. 4 , the air deflector 24 is movably mounted on the partition 32 , and in this preferred embodiment, the wind deflector 24 is preferably connected to the partition by screw connection. 32. The wind deflector 24 further includes at least one wind blade 241 and at least one fixed shaft 242, wherein each wind blade 241 is fixedly mounted on each fixed shaft 242, and at least one of the two ends of the fixed shaft 242 has One end is movably installed on the partition board 32 , so that the wind leaf 241 is indirectly installed on the partition board 32 . In this preferred embodiment, both ends of the fixed shaft 242 are installed on the partition plate 32 so as to straddle both sides of the first accommodation chamber 301, wherein at least one of the wind deflectors 24 An air guide duct 201 is formed between the casing of the fan 202 , and the airflow generated by the fan 202 can be blown to the target position of the vibrating screen 22 under the guidance of the air guide plate 24 . Wherein, the two ends of the fixed shaft 242 are threaded, and the two ends of the fixed shaft 242 are connected to the partition plate 32 by threads, so as to be connected to the partition plate 32 . Wherein, the wind leaf 241 is fixedly connected to the fixed shaft 242 and rotates with the rotation of the fixed shaft 242 . The first storage chamber 301 has at least two fixing holes 3011, each of which is symmetrically formed on the partition plate 32, and the two ends of the fixing shaft 242 are screwed to the two symmetrical fixing holes respectively. 3011 to be movably connected to the partition 32. Wherein, the fixing shaft 242 passes through the first receiving chamber 301 . The two ends of the fixed shaft 242 are respectively connected to a connecting piece 243, which is used to limit the movement of the fixed shaft 242, including the forward and backward rotation direction of the axial direction where the fixed shaft 242 is located, and the clockwise and counterclockwise rotation directions, thereby fixing the fixed shaft 242. The orientation of the air guide duct 201 is described. In this preferred embodiment, the connecting piece 243 is a nut, which is screwed to the two ends of the connecting shaft 242 respectively. When the two connecting pieces 243 at the two ends of the connecting shaft 242 pass through When the two ends of the shaft 242 are rotated to exert pressure on the partition 32, the air deflector 24 can be inmovably connected to the partition 32 to maintain a desired state, so that the air guide can The orientation of 201 remains unchanged. It is worth mentioning that once the airflow generated by the fan 202 is formed, it is located in the air guide channel 201 and is further purposefully guided to the screen surface of the vibrating screen 22 through the air guide channel 201 . When the direction of the air guide channel 201 needs to be adjusted, the direction of the air guide channel 201 can be changed by rotating the fixed shaft 242 so that the direction of the plane where the air leaf 241 is located changes. Further, by changing the pressure of the connecting piece 243 fixed on the two ends of the fixed shaft 242 to the partition plate 32 so that the fixed shaft 242 can be rotated, that is, loosen the connecting piece 243 at both ends of the fixed shaft 242, so that the The pressure of the connecting piece 243 on the partition plate 32 is reduced so that the fixed shaft 242 can be rotated to adjust the direction of the air guiding channel 201, so as to guide the airflow generated by the fan 202 to the vibrating Between the sieve surface of the sieve 22 and each sieve surface. Wherein, the diameter of the fixing hole 3011 is slightly larger than the diameters of both ends of the fixing shaft 242 and smaller than the connecting piece 243 for fixing the two ends of the fixing shaft 242 .

It is worth mentioning that by marking the two ends of the fixed shaft 242, it is possible to read and measure the angle and current position of the fixed shaft 242, which is beneficial to the grain size of different crops. Adjust the fixed shafts 242 according to the physical properties of the straw, so that the direction of the air guiding channel 201 changes.

It is worth mentioning that, since each screen surface of the vibrating screen 22 has screen holes, the airflow generated by the fan 202 can flow between the screen surfaces through the screen holes of the vibrating screen 22. When the fan 202 When the power of the vibrating screen 22 is fixed and a larger wind force needs to be provided to the target screen surface area of the vibrating screen 22, that is, the target screen surface area of the vibrating screen 22 needs a larger airflow velocity, by adjusting the wind deflector 24 , so that the direction of the air guide channel 201 is concentrated on the same part of the vibrating screen 22, so as to increase the suspension speed of the air flow in the target screen surface area of the vibrating screen 22. In the same way, when the power of the blower fan 202 is constant, and it is necessary to provide less wind power to the target screen area of the vibrating screen 22, that is, the target screen area of the vibrating screen 22 requires a smaller air velocity , by adjusting the air deflector 24, change the orientation of the air guide channel 201 to increase the control area of the airflow generated by the fan 202, thereby weakening the airflow velocity of the target screen surface area of the vibrating screen 22 . Or by adjusting the wind guide plate 24, change the orientation of the air guide channel 201, so that the airflow generated by the fan 202 is concentrated in a position other than the target screen surface area, thereby reducing the target screen surface of the vibrating screen 22 The air velocity of the zone. To sum up, the air guide channel 201 formed between the at least one air guide plate 24 and the casing of the fan 202 can guide the airflow generated by the fan 202 to the same target of the vibrating screen 22 at the same time. position, or guide the airflow generated by the fan 202 to different target positions of the vibrating screen 22 at the same time, that is, multiple target positions.

Preferably, by adjusting the position of the wind deflector 24, the orientation of the air guide channel 201 is changed, so that the power of the fan 202 can be adjusted reasonably according to the characteristics of the harvested crops when the power of the fan 202 is constant. The air velocity of the target screen surface area of the vibrating screen 22 realizes better sorting of crop grains and other mixtures.

Preferably, in this preferred embodiment, the fan 202 of the cleaning device 20 includes two air deflectors 24, and each of the air deflectors 24 is installed on the partition 32 so as to be placed on the Between the casings of the air outlet of the blower fan 202, three described wind guides are formed between the planes where the wind deflectors 24 are located, and between the planes where the wind deflectors 24 are located and the plane where the fan 202 casing is located. 201, and each of the air guide channels 201 can guide the airflow generated by the fan 202 to the same front, middle and rear of the vibrating screen 22 under the regulation of the air guide plate 24. target bit or different target bit. That is to say, the air guide channel 201 formed between the air guide plates 24 and the air guide channel 201 formed between the air guide plate 24 and the casing of the fan 202 can be The orientation of each air guide channel 201 is changed under the adjustment of the air guide plate 24 , so that the airflow generated by the fan 202 is guided to the same target position or different target positions of the vibrating screen 22 .

It is worth mentioning that, by adjusting each of the air deflectors 24, each of the air guide channels 24 formed guides the airflow generated by the fan 202 to the front, middle and rear of the vibrating screen 22 respectively, In addition to cooperating with the vibrating screen 22 to complete the sorting and collection of the grains of crops and their mixture, the collection efficiency of grains of crops can be improved and waste can be reduced due to the uniform airflow generated by the fan 202 .

It is worth mentioning that the wind deflector 24 can also be connected to the casing of the fan 202 by the same principle.

It is worth mentioning that the air guide plate 24 can also be adjusted under the control of the electronic components, so that the direction of the air guide channel 201 can be adjusted.

As shown in FIG. 5 , it is an alternative to the wind deflector 24 of this preferred embodiment. The difference from this preferred embodiment is that at least one air guide opening is formed on the wind leaf 241A of the wind deflector 24A. 202A, that is to say, at least one air guide channel 201A is formed between the air guide port 202A of the air leaf 241A and the casing of the fan 202, and by placing the air guide channel 201A in the fan 202 Air outlet, the air guide channel 201A will gather the airflow generated by the fan 202, and guide the airflow generated by the fan through the air guide channel 201A to the target position of the vibrating screen 22 by the air guide port 202A , and the fan blade 241A will change the angle at which the airflow generated by the fan 202 flows to the vibrating screen 22 through its own rotation.

Preferably, in this alternative mode, the air deflector 24A further includes a guide 243A, and the guide 243A is integrally connected to the wind leaf 241A, and is arranged on the edge of the air guide 202A, and then , when the airflow generated by the fan 202 is guided to the vibrating screen 22 by the air guide channel 201A, the guide 243 will help the gathering of the air flow passing through the air guide channel 201A, so that the air flow effectively be directed to the target site of the vibrating screen 22 .

It is worth mentioning that a plurality of the air guide channels 201A are arranged on the air leaf 241A, and when the direction of each of the air guide channels 201A needs to be adjusted, by only adjusting the The fixed shaft 242A can adjust the directions of multiple air guiding channels 201A at the same time, which improves the working efficiency.

It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

The above content is an example of specific embodiments of the present utility model, and for the equipment and structure not described in detail, it should be understood that it is implemented by adopting the existing general equipment and general methods in the art.

At the same time, the above-mentioned embodiments of the utility model are only for illustrating the technical solution of the utility model, and are only enumerations of the technical solution of the utility model, and are not used to limit the technical solution of the utility model and its protection scope. The use of equivalent technical means, equivalent equipment, etc. to improve the technical solutions disclosed in the claims and description of the utility model shall not exceed the scope disclosed in the claims and description of the utility model.

Claims (17)

1. a sorting unit, for a harvester it is characterised in that including:

One sheller unit, the crops arrived for preliminary sorting harvesting, obtain the mixture of the seed in crops；

One wind guiding mechanism, for sorting seed and its mixture in crops further；And

One installation casing, described sheller unit and described wind guiding mechanism are all installed in described installation casing, the village that harvesting is arrived The seed sowed and its mixture are sorted, and wherein, described wind guiding mechanism further includes:

At least one blower fan, described blower fan is installed in described installation casing；With

At least one wind deflector, described wind deflector is movably installed on described installation casing, and is placed in going out of described blower fan Air port, in forming a wind guide channel at least described in one between the casing of wind deflector and described blower fan, by the gas of described blower fan generation Conductance causes multiple target sites of vibrosieve.

2. sorting unit as claimed in claim 1, wherein, described installation casing further includes one group of dividing plate, each described every Plate defines one first accommodating chamber and one second accommodating chamber, and described sheller unit and described wind guiding mechanism are respectively disposed in described first Accommodating chamber and described second accommodating chamber, the two ends of described wind deflector be threadedly connected to formed described second accommodating chamber described every Plate, to be rotationally placed in the air outlet of described blower fan, changes the direction of described wind guide channel, thus described blower fan is produced Air-flow is directed to multiple target sites of described vibrosieve.

3. sorting unit as claimed in claim 2, wherein, by rotating described wind deflector, multiple described wind guide channels can be simultaneously The air-flow that described blower fan is produced guides the same target site of described vibrosieve, the air-flow guiding that also can produce described blower fan Multiple target sites of described vibrosieve.

4. sorting unit as claimed in claim 2, wherein, described wind deflector further includes at least one guide member, a wind page And a fixing axle, described wind page has at least one air guide hole, forms at least one between the casing of described blower fan and described air guide hole Described wind guide channel, described guide member is integrally connected to described wind page and is arranged at the edge of described air guide hole, with assemble by The air-flow that described wind guide channel flows out, described wind page is fixedly connected on described fixing axle, and the two ends of described fixing axle are provided with spiral shell Stricture of vagina, the described dividing plate forming described second containing cavity has at least two fixing holes, and the two ends of described fixing axle are by described fixation Hole is threadedly connected to described dividing plate and is placed in the air outlet of described blower fan, and wherein, the two ends of described fixing axle are respectively led by described A connection piece of aerofoil is fixed from the outside of described first accommodating chamber, the direction of fixing described wind guide channel.

5. sorting unit as claimed in claim 3, wherein, described wind deflector further includes a wind page and a fixing axle, institute State wind page and be fixedly connected on described fixing axle, the two ends of described fixing axle are provided with screw thread, form described second containing cavity Described dividing plate has at least two fixing holes, and the two ends of described fixing axle are threadedly connected to described dividing plate quilt by described fixing hole Be placed in the air outlet of described blower fan, wherein, the two ends of described fixing axle respectively by described wind deflector a connection piece from described first The outside of accommodating chamber is fixed, the direction of fixing described wind guide channel.

6. the sorting unit as described in claim 4 or 5, wherein, described installation casing further includes a notch board, described notch board Be arranged between described first accommodating chamber and described second accommodating chamber, the crops seed through the preliminary sorting of described sheller unit and Its mixture enters described second accommodating chamber by the linked hole of described notch board, with further in the presence of described wind guiding mechanism Sorting.

7. sorting unit as claimed in claim 6, wherein, described dividing plate forms one at least one integration groove and described second receiving Room bottom, described sorting unit also includes a cleaning plant, and described cleaning plant includes wind guiding mechanism described in, wherein, described Cleaning plant further includes at least one auger, and each described auger is arranged at described integration groove respectively, to collect through entering respectively The seed in crops of one step sorting and its mixture.

8. sorting unit as claimed in claim 7, the described dividing plate near described auger is in that ramped shaped is arranged respectively, will divide The seed in crops obtaining and its mixture is selected to be directed respectively into described auger and collect.

9. sorting unit as claimed in claim 8, described fixing hole is arranged at described near the air outlet of described blower fan Dividing plate, the aperture of described fixing hole is slightly larger than the diameter of axle at described fixing axle two ends.

10. sorting unit as claimed in claim 9, wherein, described connector is threadedly connected to the two ends of described fixing axle, when Each described connector along described fixing axle two ends rotation and apply pressure to respectively described dividing plate when, by described wind deflector keep one Required state in the air outlet of described blower fan, keep described wind guide channel towards constant；When each described connector is along described solid The two ends rotation of dead axle, when reducing the pressure to described dividing plate respectively, described fixing axle can be rotated, to change described wind guide channel Direction.

11. sorting units as claimed in claim 10, wherein, described connector is a nut, and described vibrosieve can be at least Back and forth movement is done in two-dimensionses direction.

12. 1 wind guiding mechanisms, the sorting unit for a harvester is it is characterised in that include:

At least one blower fan, is installed in the installation casing of this harvester, and wherein, described blower fan has an air outlet；With

At least one wind deflector, is movably installed on this installation casing, and is placed in the air outlet of described blower fan, at least one Form a wind guide channel, the air-flow that described blower fan is produced is directed to this harvesting between the casing of described wind deflector and described blower fan Multiple target sites of the vibrosieve of machine.

13. wind guiding mechanisms as claimed in claim 12, the two ends of described wind deflector be rotatably connected at this installation casing and Rotationally it is placed in the air outlet of described blower fan, to change the direction of each described wind guide channel respectively, thus described blower fan is produced Raw air-flow is directed to multiple target sites of described vibrosieve.

14. wind guiding mechanisms as claimed in claim 12, the two ends of described wind deflector be rotatably connected at this installation casing and It is rotatablely arranged at the air outlet of described blower fan, to change the direction of described wind guide channel, thus the gas that described blower fan is produced Conductance causes multiple target sites of described vibrosieve.

15. wind guiding mechanisms as claimed in claim 13, wherein, described wind deflector further includes a wind page and a fixing axle, Described wind page is fixedly connected on described fixing axle, and the two ends of described fixing axle are threadingly attached to this installation casing and are set to In the air outlet of described blower fan, wherein, the two ends of described fixing axle are respectively fixed in this installation casing by a connection piece and consolidate The direction of fixed described wind guide channel.

16. wind guiding mechanisms as claimed in claim 14, wherein, described wind deflector further includes at least one guide member, a wind Page and a fixing axle, described wind page has at least one air guide hole, forms at least one between the casing of this blower fan and described air guide hole Described wind guide channel, described guide member is integrally connected to described wind page and is arranged at the edge of described air guide hole, described wind page It is fixedly connected on described fixing axle, the two ends of described fixing axle are threadedly connected to dividing plate and are placed in the air-out of described blower fan Mouthful, wherein, the two ends of described fixing axle are respectively fixed in this installation casing by a connection piece of described wind deflector and fix institute State wind guide channel direction.

17. wind guiding mechanisms as described in claim 15 or 16, described connector is threadedly connected to the two ends of described fixing axle, when Each described connector along described fixing axle two ends rotation and apply pressure to respectively this installation casing when, by described wind deflector keep State needed for one in the air outlet of described blower fan, keep described wind guide channel towards constant；When described connector is along described solid The two ends rotation of dead axle, when reducing the pressure to this installation casing respectively, described fixing axle can be rotated, to lead described in changing The direction in air channel.