Conveying device for grain drying

Abstract

The invention relates to the field of grain conveying equipment, in particular to a grain drying conveying device which comprises a rack, an upper cylinder, a lower cylinder and a driving belt, the upper cylinder and the lower cylinder are vertically arranged in an inner cavity in a spaced mode, the driving belt is rotatably arranged on the upper cylinder and the lower cylinder, a feeding port is formed in the bottom of the rack, and a discharging port is formed in the top of the rack. A rotatable adjusting wall is formed on the side wall, away from the driving belt, of the hopper, the adjusting wall is switched between a material guiding state and an operating state, the adjusting wall obliquely extends outwards in the direction of an opening of the hopper when in the material guiding state, and the adjusting wall obliquely extends inwards in the direction of the opening of the hopper when in the operating state; the conveying device further comprises a driving mechanism, and the driving mechanism can drive the hopper to be in a running state in the process that the hopper moves from the feeding port to the top of the upper barrel and in the process that the hopper moves from the discharging port to the bottom of the lower barrel. The movable adjusting wall is arranged on the hopper, so that the problems in the prior art are effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of grain conveying equipment, and particularly to a conveying device for grain drying. Background Art

[0002] When drying grains such as wheat and corn, it is often necessary to lift and convey the grains from the bottom of the dryer to the top of the dryer, as shown in a bucket elevator used in conjunction with a grain dryer disclosed in the patent with publication number CN202346309U. Among them, the bucket elevator is a commonly used grain conveying device.

[0003] Currently, the structure of the bucket elevator for grain drying is mostly like a sunken grain lifting mechanism disclosed in the patent with publication number CN213504376U. The hopper is driven to make a rotary conveying movement by a conveyor belt or a chain. The hopper receives grains at the feeding port at the bottom of the conveyor. When the hopper rotates at the top of the conveyor, the grains are scattered to the discharging port by the centrifugal force and gravity of the grains.

[0004] The applicant found that when the hopper receives grains at the feeding port position, the larger the opening of the hopper, the less likely the grains are to fall to the bottom of the hopper, thereby reducing the damage to the grains when the hopper rotates to the bottom for scraping. The higher the outward inclination of the outer wall of the hopper, the less likely the materials are to be restricted by the outer wall of the hopper when the hopper scatters materials at the top of the conveyor, and the grains are more likely to be scattered to the discharging port, reducing the probability of the grains falling to the bottom of the lifting channel, and further reducing the damage to the grains during the falling and repeated lifting processes. Thus, it can be seen that when the outward inclination of the outer wall of the hopper is relatively high, the integrity of the grains is higher, and the feeding and discharging efficiency of the hopper is higher.

[0005] At the same time, the applicant found that for a bucket elevator with a closed channel, when using a scattering type hopper for lifting, the operating speed of the hopper during grain lifting is generally above 2 m / s. Since the lifting height of large-scale grain drying is generally above 15 m, the change in the wind resistance of the hopper has a greater impact on the overall energy consumption. In some working conditions, the wind resistance of the hopper accounts for 28% to 40% of the overall energy consumption of the elevator. For every 10% increase in the windward area of the hopper during the lifting process, the wind resistance increases by 18% to 22%. Thus, it can be seen that when optimizing the angle of the outer wall of the hopper to improve the integrity of the grains and the lifting efficiency, how to reduce the impact of the wind resistance of the hopper on the overall load is an urgent problem to be solved currently. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a conveying device for grain drying, which effectively solves the problems existing in the prior art by providing a movable adjusting wall on the hopper.

[0007] In order to solve the above problems, the present invention provides a conveying device for grain drying, comprising a frame with an inner cavity, an upper cylinder and a lower cylinder arranged in the inner cavity at intervals, and a driving belt rotatably arranged on the upper cylinder and the lower cylinder, a feed port is provided at the bottom of the frame, and a discharge port is provided at the top of the frame, the conveying device comprises a hopper arranged at intervals on the driving belt, a side wall of the hopper away from the driving belt forms a rotatable adjustment wall, the adjustment wall switches between a material guiding state and an operating state, the adjustment wall extends obliquely outward toward the mouth of the hopper when in the material guiding state, and extends obliquely inward toward the mouth of the hopper when in the operating state; the conveying device also comprises a driving mechanism, the driving mechanism can drive the hopper to the operating state during the process of moving from the feed port to the top of the upper cylinder and during the process of moving from the discharge port to the bottom of the lower cylinder.

[0008] Furthermore, the driving mechanism includes a driving arm rotatably connected to the hopper and a driving rail arranged on the frame, the driving arm is provided with a driving end, and the driving arm is transmission-connected to the adjusting wall. When the hopper drives the driving arm to move until the driving end contacts the driving rail, the driving rail can push the driving arm to rotate away from the moving direction of the hopper, so that the driving arm drives the adjusting wall to rotate from the material guiding state to the operating state.

[0009] Furthermore, the driving mechanism includes a first connecting rod hinged to the hopper, and the first connecting rod is hinged to the driving arm.

[0010] Furthermore, the conveying device also includes a latch and a power unit that drives the latch to move. After the driving arm drives the adjustment wall to the operating state, the power unit can drive the latch to move to stop or release the rotation of the adjustment wall.

[0011] Further, the power unit includes a power arm rotatably arranged on the hopper, and a spring arranged between the latch and the hopper, the power arm can be transmission-connected to the latch, and the power arm is arranged on one side of the driving arm toward the direction of travel of the hopper;

[0012] The hopper drives the power arm to move until the power arm contacts the drive rail, and the drive rail can push the power arm to rotate away from the moving direction of the hopper, so that the power arm drives the latch to release the adjustment wall;

[0013] The spring can drive the latch to stop the adjusting wall.

[0014] Further, a rotating seat is formed at the hinge position between the power arm and the hopper, and the plug is integrally formed with the rotating seat. A driving seat is formed at the hinge position between the driving arm and the hopper, and a jack for inserting the plug is provided on the surface side of the driving seat.

[0015] Further, the driving rail includes a limiting section and a pushing section arranged along the traveling direction of the hopper. The pushing section protrudes from the side facing the hopper compared to the limiting section, so that

[0016] when the power arm moves to the limiting section, it can be pushed to drive the plug to release the adjusting wall;

[0017] when the driving arm moves to the limiting section position, the adjusting wall can rotate to the material guiding state, and when the driving arm moves to the pushing section position, the pushing section can drive the arm to rotate so that the adjusting wall moves to the operating state.

[0018] Further, the driving rail is provided at the position of the upper cylinder of the frame. The driving rail further includes a guiding section provided between the limiting section and the pushing section;

[0019] The limiting section of the driving rail at the position of the upper cylinder extends from the upper side of the center of the upper cylinder to the upper side of the lower edge of the discharge port. The guiding section is arranged so that when the driving arm of the hopper moves to the guiding section position, the outer edge of the adjusting wall of the hopper moves from the upper side of the lower edge of the discharge port to the lower side of the lower edge of the discharge port.

[0020] Further, the driving rail is provided at the position of the lower cylinder of the frame. An inclined plate extending into the inner cavity is formed at the lower edge of the feed port. The driving rail at the position of the lower cylinder is arranged as follows

[0021] the limiting section extends from the lower side of the center of the lower cylinder to the upper side of the upper edge of the feed port, and the pushing section is arranged above the limiting section;

[0022] a transition protrusion is formed at the position of the lower edge of the feed port of the limiting section. The transition protrusion is arranged so that when the driving arm moves to the transition protrusion position, the adjusting wall of the hopper moves from the lower side of the inclined plate to the upper side of the inclined plate.

[0023] Further, the plug is set as an electric plug.

[0024] The beneficial effect of the present invention is that by providing a movable adjusting wall on the hopper, the problems existing in the prior art are effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0027] Figure 2 is Figure 1 The partial sectional structural schematic diagram in the A-A direction in.

[0028] Figure 3 is Figure 1 The structural schematic diagram of the hopper in the illustrated embodiment.

[0029] Figure 4 is Figure 2 The partial enlarged structural schematic diagram at position B in.

[0030] Figure 5 is Figure 2 The partial enlarged structural schematic diagram at position C in.

[0031] Figure 6 is Figure 5 The partial sectional structural schematic diagram in the D-D direction in.

[0032] Wherein: 1, frame; 2, upper cylinder; 3, lower cylinder; 4, drive belt; 5, feed inlet; 6, discharge outlet; 7, hopper; 701, adjusting wall; 8, drive arm; 801, drive seat; 9, drive rail; 901, limiting section; 902, pushing section; 903, guiding section; 904, transition protrusion; 10, first connecting rod; 11, second connecting rod; 12, pin; 13, power arm; 1301, rotating seat; 14, spring; 15, jack; 16, inclined plate. Detailed implementation manners

[0033] In order to more clearly illustrate the overall concept of the present invention, the following will be further described in detail by way of examples in combination with the accompanying drawings of the specification.

[0034] It should be noted that many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0035] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0036] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed through an excessive structure between the two connected main bodies, and they are only connected through the connection structure to form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0038] In the present invention, as Figures 1-6As shown in the figure, a conveying device for grain drying is provided, which includes a frame 1 with an inner cavity, an upper cylinder 2 and a lower cylinder 3 arranged at intervals up and down in the inner cavity, and a driving belt 4 rotatably arranged between the upper cylinder 2 and the lower cylinder 3. A feed inlet 5 is provided at the bottom of the frame 1, and a discharge outlet 6 is provided at the top of the frame 1. The conveying device includes hoppers 7 arranged at intervals on the driving belt 4. A rotatable adjusting wall 701 is formed on the side wall of the hopper 7 away from the driving belt 4. The adjusting wall 701 switches between a material guiding state and an operating state. When the adjusting wall 701 is in the material guiding state, it extends obliquely outward towards the mouth of the hopper 7. When the adjusting wall 701 is in the operating state, it extends obliquely inward towards the mouth of the hopper 7. The conveying device further includes a driving mechanism. The driving mechanism can drive the adjusting wall 701 to the material guiding state when the hopper 7 rotates from the top of the upper cylinder to the discharge outlet 6 and when the hopper 7 rotates from the bottom of the lower cylinder to the feed inlet 5. The driving mechanism can drive the adjusting wall 701 to the operating state when the hopper 7 moves from the feed inlet 5 to the top of the upper cylinder and when the hopper 7 moves from the discharge outlet 6 to the bottom of the lower cylinder.

[0039] When the conveying device of the present invention is in use, as Figure 2 and 5 shown, at the position of the feed inlet 5 at the bottom of the frame 1, the driving mechanism adjusts the adjusting wall 701 to the material guiding state. At this time, the adjusting wall 701 inclines outward, and the opening of the hopper 7 becomes larger, which can better receive the grain entering from the feed inlet 5, thereby reducing the probability of the grain falling during the process of entering the hopper 7. When the hopper 7 moves upward past the feed inlet 5 and rotates towards the top of the upper cylinder, the driving mechanism adjusts the adjusting wall 701 to the operating state. At this time, the adjusting wall 701 inclines inward, and the mouth of the hopper 7 becomes smaller, thereby reducing the wind resistance of the hopper 7. In particular, when the adjusting wall 701 inclines inward, a wind guiding inclined surface can be formed on the outer surface of the adjusting wall 701, further reducing the wind resistance. When the hopper 7 rotates from the top of the upper cylinder towards the discharge outlet 6, the driving mechanism adjusts the adjusting wall 701 to the material guiding state. At this time, under the action of centrifugal force, the adjusting wall 701 opens, and the mouth of the hopper 7 becomes larger, which can reduce the obstruction of the adjusting wall 701 to the grain throwing, making it easier for the grain to be thrown to the discharge outlet 6, and then reducing the probability of the grain falling back from the inner cavity. After the hopper 7 moves downward past the discharge outlet 6, the driving mechanism can drive the adjusting wall 701 to the operating state to further reduce the wind resistance during the operation of the hopper 7.

[0040] It can be easily seen from this that the present invention can make the adjusting wall 701 in the material guiding state when receiving materials at the feed inlet 5 and throwing materials at the discharge outlet 6, so as to expand the opening of the hopper 7 and optimize the feeding and discharging efficiency and quality of the grain. The adjusting wall 701 can also be switched to the operating state during the vertical movement of the hopper 7 to reduce the wind resistance during the movement of the hopper 7.

[0041] In a preferred embodiment, specifically for the structure of the present invention, the driving mechanism includes a driving arm 8 rotatably connected to the hopper 7 and a driving rail 9 provided on the frame 1. The driving arm 8 is provided with a driving end. The driving arm 8 is in transmission connection with the adjusting wall 701. When the hopper 7 drives the driving arm 8 to move until the driving end contacts the driving rail 9, the driving rail 9 can push the driving arm 8 to rotate away from the moving direction of the hopper 7, so that the driving arm 8 drives the adjusting wall 701 to rotate from the material guiding state to the operating state.

[0042] As Figure 4 and Figure 5 shown, by providing the driving rail 9, when the driving belt 4 drives the hopper 7 to move, the driving end of the driving arm 8 can be actively moved to the position of the driving rail 9 to achieve the contact between the driving end and the driving rail 9. The driving wall is pushed by the driving rail 9 towards the hopper 7 (relative action), and then the driving force for rotation is provided to the driving arm 8, so that the adjusting wall 701 can actively rotate towards the inside of the hopper 7 and contract to the operating state. The present invention does not need to set an active driving structure for the adjusting wall 701, which can reduce the influence of the modification of the hopper 7 on the weight of the hopper 7.

[0043] In an alternative embodiment, the driving mechanism can also be arranged as follows. A small electric telescopic rod or a rotating motor is provided on the hopper 7 to drive the adjusting wall 701 to rotate.

[0044] In the illustrated embodiment, specifically for the structure of the present invention, the driving mechanism includes a first connecting rod 10 hinged to the hopper 7, and the first connecting rod 10 is hinged to the driving arm 8.

[0045] As Figure 3 shown, a driving seat 801 is formed at the hinged position of the driving arm 8 and the hopper 7. A second connecting rod 11 is formed on the driving arm 8 on the side away from the driving end of the driving seat 801. The first connecting rod 10 and the second connecting rod 11 are hinged, so that when the driving end of the driving arm 8 rotates downward (moves relative to the driving rail 9), the driving arm 8 can drive the first connecting rod 10 to pull the adjusting wall 701 to rotate.

[0046] By adopting the transmission driving mode of the connecting rod, the transmission structure between the driving arm 8 and the adjusting wall 701 can be simplified and is not easily stuck by the fallen grains.

[0047] In an alternative embodiment, other forms can also be adopted to realize the linkage between the driving arm 8 and the adjusting wall 701, such as the driving seat 801 being in transmission connection with the adjusting wall 701 through a gear structure.

[0048] In the illustrated embodiment, for the structure of the present invention, to be more specific, the conveying device also includes a latch 12 and a power unit that drives the latch 12 to move. After the driving arm 8 drives the adjustment wall 701 to the operating state, the power unit can drive the latch 12 to move to stop or release the rotation of the adjustment wall 701.

[0049] By providing the latch 12, the adjusting wall 701 can be ensured to be in the operating state during the vertical movement, thereby preventing the opening of the hopper 7 from opening at will. When the hopper 7 moves to the top of the upper barrel and the bottom of the lower barrel, the latch 12 can be opened, and the adjusting wall 701 is forced to open under the superposition of the centrifugal force and wind force of the adjusting wall 701, so as to automatically switch the adjusting wall 701 from the operating state to the material guiding state.

[0050] In the illustrated embodiment, for the structure of the present invention, to be more specific, the power unit includes a power arm 13 rotatably arranged on the hopper 7, and a spring 14 arranged between the latch 12 and the hopper 7, the power arm 13 can be transmission-connected to the latch 12, and the power arm 13 is arranged on the side of the driving arm 8 facing the moving direction of the hopper 7; when the hopper 7 drives the power arm 13 to move until the power arm 13 contacts the driving rail 9, the driving rail 9 can push the power arm 13 to rotate away from the moving direction of the hopper 7, so that the power arm 13 drives the latch 12 to release the adjustment wall 701; the spring 14 can drive the latch 12 to stop the adjustment wall 701.

[0051] like Figures 3 to 5 As shown, when the hopper 7 moves to the position of the driving rail 9, the power arm 13 first contacts the driving rail 9, and then the power arm 13 and the driving rail 9 move relative to each other, driving the latch 12 to release the adjustment wall 701. When the driving arm 8 contacts the driving rail 9 and drives the adjustment wall 701 to retract and rotate, the influence of the latch 12 on the rotation of the adjustment wall 701 can be reduced. After the power arm 13 is separated from the driving rail 9, the latch 12 moves to the position to stop the rotation of the adjustment wall 701 under the action of the spring 14, and after the driving arm 8 is separated from the driving rail 9 again, the adjustment wall 701 can maintain the retracted operating state.

[0052] It is not difficult to see from this that the present invention can utilize the driving rail 9 to simultaneously realize the rotational drive of the power arm 13 and the driving arm 8. It can also optimize the relative position of the power arm 13 and the driving arm 8 to realize the latch 12 first releasing the adjustment wall 701 and then rotating the adjustment wall 701, and realize the working mode in which the latch 12 first moves to the stop adjustment wall 701 and the driving arm 8 is then separated from the driving rail 9, so that the movement of the latch 12 and the movement of the adjustment wall 701 can be coordinated.

[0053] In the illustrated embodiment, with respect to the structure of the present invention, more specifically, a rotating seat 1301 is formed at the hinge position between the power arm 13 and the hopper 7. The rotating seat 1301 integrally forms the pin 12. A driving seat 801 is formed at the hinge position between the driving arm 8 and the hopper 7. A jack 15 for inserting the pin 12 is provided on the surface side of the driving seat 801.

[0054] As Figure 3 and Figure 4 shown, the pin 12 is formed on the side of the rotating seat 1301 away from the outer end of the power arm 13. The driving seat 801 is arranged in an arc shape, and the jack 15 is arranged on the side wall of the driving seat 801. When the adjusting wall 701 is in the state of guiding materials, the spring 14 drives the pin 12 to abut against the side surface of the driving seat 801, thereby stabilizing the position of the power arm 13.

[0055] In the structural form using the first connecting rod 10 for transmission, by providing the jack 15 on the driving seat 801, the pin 12 can be stopped at the position of the driving seat 801 and the adjusting wall 701 can be released, thereby using the first connecting rod 10 to complete the transmission of the driving force for the inward rotation of the adjusting wall 701 and the transmission of the braking force for the outward rotation. There is no need to provide a matching structure between the adjusting wall 701 and the pin 12 on the adjusting wall 701, thereby further simplifying the structure of the position of the adjusting wall 701 and preventing the locking structure at the position of the adjusting wall 701 from being interfered by grains.

[0056] In the illustrated embodiment, as Figures 3 to 6 shown, the driving rail 9 is arranged on the side of the hopper 7 away from the adjusting wall 701 and is connected to the frame, and driving rails are respectively provided at the two transverse ends of the hopper. The driving seat 801 and the rotating seat 1301 are both arranged on the side of the two transverse end faces of the hopper 7 away from the adjusting wall 701, so that the driving seat 801 and the rotating seat 1301 can be away from the positions where grains are fed and scattered and the positions where materials are discharged and scattered, thereby further reducing the influence of grains on the structural positions of the driving seat 801 and the rotating seat 1301.

[0057] For the structure in which the power arm 13 drives the pin 12 to brake and release the adjusting wall 701, it is not limited to Figure 3 the form of providing the jack 15 on the driving seat 801 shown in. In an alternative embodiment, it can also be arranged as follows: a hook is formed at the end of the rotating seat 1301 of the power arm 13 away from the driving rail 9, and a block cooperating with the hook is provided on the adjusting wall 701. When the adjusting wall 701 rotates to the operating state, the hook can cooperate with the block.

[0058] In the illustrated embodiment, regarding the arrangement of the spring 14, more specifically, the lower end of the spring 14 is connected to the upper side of the power arm 13, and the upper end is connected to the fixed block on the hopper 7. The spring 14 drives the power arm 13 to rotate through tension, so that the bolt 12 has a rotational tendency towards the jack 15. In a preferred embodiment, in order to prevent the spring 14 from getting stuck in the grains, a silica gel sleeve can be sleeved outside the spring 14. In the drawings, the silica gel sleeve is not drawn in order to show the structure of the spring 14. The arrangement of the spring 14 is not limited to the form of the tension spring shown in the figure. In an alternative embodiment, a torsion spring can also be arranged between the rotating seat 1301 and the hopper 7, or a compression spring can be arranged between the bolt 12 and the hopper 7.

[0059] Regarding the arrangement of the bolt 12, in an alternative embodiment, it can also be arranged as follows. The bolt 12 is arranged as an electric bolt 12. Preferably, a small electric bolt 12 with its own power supply can be used. The small electric bolt 12 has the characteristics of long battery life and sensitive response, and can be automatically charged in cooperation with a small power generation module. In the embodiment using the electric bolt 12, a marking portion can be arranged at the position of the driving rail 9, and an induction switch cooperating with the marking portion is arranged on the electric bolt 12. When the electric bolt 12 moves to the position of the driving rail 9, the adjusting wall 701 is released, and when the electric bolt 12 leaves the driving rail 9, the adjusting wall 701 is stopped.

[0060] In the illustrated embodiment, regarding the structure of the present invention, more specifically, the driving rail 9 includes a limiting section 901 and a pushing section 902 arranged along the traveling direction of the hopper 7. The pushing section 902 protrudes from the side facing the hopper 7 compared to the limiting section 901, so that,

[0061] When the power arm 13 moves to the limiting section 901, it can be pushed to drive the bolt 12 to release the adjusting wall 701;

[0062] When the driving arm 8 moves to the position of the limiting section 901, the adjusting wall 701 can rotate to the material guiding state, and when the driving arm 8 moves to the position of the pushing section 902, the pushing section 902 can drive the driving arm 8 to rotate so that the adjusting wall 701 moves to the operating state.

[0063] As Figure 2 shown, when the hopper 7 moves to the position of the driving rail 9, the power arm 13 first moves to the limiting section 901. At this time, the driving arm 8 drives the bolt 12 to release the adjusting wall 701. The outer end of the driving arm 8 has not yet contacted the driving rail 9 to generate rotation at this time. The adjusting wall 701 can rotate to the material guiding state under the action of centrifugal force and wind resistance (superimposing gravity at the lower cylinder position). When the driving arm 8 moves to the pushing section 902, the pushing section 902 can push the driving arm 8 to rotate to drive the adjusting wall 701 to contract to the operating state. At this time, the wind resistance of the hopper 7 can be reduced.

[0064] In the illustrated embodiment, with respect to the structure of the present invention, more specifically, at the position of the upper cylinder 2 of the frame 1, there is provided the drive rail 9, and the drive rail 9 further includes a guiding section 903 disposed between the limiting section 901 and the pushing section 902; the limiting section 901 of the drive rail 9 at the position of the upper cylinder 2 extends from the upper side of the center of the upper cylinder 2 to the upper side of the lower edge of the discharge port 6, and the guiding section 903 is arranged such that when the driving arm 8 of the hopper 7 moves to the position of the guiding section 903, the outer edge of the adjusting wall 701 of the hopper 7 moves from the upper side of the lower edge of the discharge port 6 to the lower side of the lower edge of the discharge port 6.

[0065] As Figure 2 and Figure 4 As shown, when the hopper 7 moves to the central position at the top of the upper cylinder 2, after the power arm 13 of the hopper 7 moves to the limiting section 901, the power arm 13 drives the query to unlock, and under the action of centrifugal force and air resistance, the adjusting wall 701 opens, and the hopper 7 starts centrifugal material scattering. During this process, the limiting section 901 can also form a cooperation with the driving arm 8 to control the limit position of the opening of the adjusting wall 701. When the outer edge of the adjusting wall 701 moves to the area of the lower edge of the feed port 5, by optimizing the position of the guiding section 903, the adjusting wall 701 starts to contract and rotate on the upper side of the lower edge of the feed port 5, so as to prevent the outer edge of the adjusting wall 701 from contacting and colliding with the lower edge of the feed port 5, and further enable the adjusting wall 701 to maintain a larger opening during the process of the hopper 7 moving from the top center of the upper cylinder 2 to the lower edge of the discharge port 6. Even the vertical projection of the outer edge of the adjusting wall 701 of the hopper 7 that does not contact the guiding section 903 is located inside the discharge port 6, so that the grain falling on the adjusting wall 701 can be directly guided into the discharge port 6 to further improve the thoroughness of material scattering.

[0066] In the illustrated embodiment, with respect to the structure of the present invention, more specifically, at the position of the lower cylinder 3 of the frame 1, there is provided the drive rail 9, and an inclined plate 16 extending into the inner cavity is formed at the lower edge of the feed port 5. The drive rail 9 at the position of the lower cylinder 3 is arranged such that the limiting section 901 extends from the lower side of the center of the lower cylinder 3 to the upper side of the upper edge of the feed port 5, and the pushing section 902 is arranged on the upper side of the limiting section 901; the limiting section 901 forms a transition protrusion 904 at the position of the lower edge of the feed port 5, and the transition protrusion 904 is arranged such that when the driving arm 8 moves to the position of the transition protrusion 904, the adjusting wall 701 of the hopper 7 moves from the lower side of the inclined plate 16 to the upper side of the inclined plate 16.

[0067] As Figure 2 and Figure 5As shown, when the power arm 13 moves to the position of the limit rail at the lower side of the center of the lower cylinder 3, the power arm 13 rotates and drives the latch 12 to release the adjustment wall 701, and the adjustment wall 701 opens. At this time, the driving arm 8 can abut against the limit section 901 to control the opening of the adjustment wall 701. When the hopper 7 moves to the point where the driving arm 8 abuts against the transition protrusion, the adjustment wall 701 first contracts and then opens, so that the adjustment wall 701 avoids the inclined plate 16 at the lower side of the feed port 5. By setting it in this way, when the adjustment wall 701 of the hopper 7 is located at the lower side of the inclined plate 16, the opening of the adjustment wall 701 is larger, and the grain introduced by the inclined plate 16 can be better received. When the adjustment wall 701 passes through the inclined plate 16, it first contracts and then opens, so that the inclined plate 16 can be avoided, and the grain can also be better received on the upper side of the inclined plate 16, so as to achieve better reception of grain at the feed port 5.

[0068] In the illustrated embodiment, in order to further improve the smoothness of movement of the hopper 7, rollers are preferably provided at the ends of the driving arm 8 and the power arm 13 so as to smoothly cooperate with the driving rail 9 through the rollers.

[0069] In order to further improve the limiting effect when the adjusting wall 701 is opened outward, Figure 3 In the illustrated embodiment, a limiting block connected to the hopper 7 is provided at the upper side of the second connecting rod 11.

[0070] In the illustrated embodiment, the structure of the adjustment wall 701 is specifically that the adjustment wall 701 includes a wall body, side plates formed on both sides of the wall body, the side plates are connected to the outer surface of the side wall of the hopper 7, the bottom wall of the hopper 7 is equipped with axle seats at both ends of the hopper 7, and the bottom of the hopper 7 is provided with a rotating shaft, which is matched and installed on the axle seats. The bottom wall of the hopper 7 is set in an arc shape to facilitate the throwing of grain.

[0071] In the attached drawings, in order to better show the structure, Figure 2 The middle part interrupts the display. Figure 6 Only displayed Figure 5 Schematic diagram of the local structure at the middle opening to show the relative position of the fixed rail on the frame and the hopper.

[0072] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0073] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A conveying device for grain drying, comprising a frame with an inner cavity, an upper cylinder and a lower cylinder arranged in the inner cavity at intervals, and a driving belt rotatably arranged on the upper cylinder and the lower cylinder, wherein a feed port is provided at the bottom of the frame and a discharge port is provided at the top of the frame, characterized in that: The conveying device includes a hopper arranged at intervals on the driving belt, and a rotatable adjustment wall is formed on the side wall of the hopper away from the driving belt. The adjustment wall switches between a material guiding state and a running state. When the adjustment wall is in the material guiding state, it extends obliquely outward toward the mouth of the hopper, and when the adjustment wall is in the running state, it extends obliquely inward toward the mouth of the hopper; The conveying device also includes a driving mechanism, which can drive the hopper to an operating state during the process of moving from the feed port to the top of the upper cylinder and the process of moving from the discharge port to the bottom of the lower cylinder.

2. The grain drying conveying device according to claim 1, characterized in that: The driving mechanism includes a driving arm rotatably connected to the hopper and a driving rail arranged on the frame, the driving arm is provided with a driving end, and the driving arm is transmission-connected to the adjusting wall. When the hopper drives the driving arm to move until the driving end contacts the driving rail, the driving rail can push the driving arm to rotate away from the moving direction of the hopper, so that the driving arm drives the adjusting wall to rotate from the material guiding state to the operating state.

3. The grain drying conveying device according to claim 2, characterized in that: The driving mechanism comprises a first connecting rod hinged to the hopper, and the first connecting rod is hinged to the driving arm.

4. The grain drying conveying device according to claim 2, characterized in that: The conveying device also includes a latch and a power unit that drives the latch to move. After the driving arm drives the adjustment wall to a running state, the power unit can drive the latch to move to stop or release the rotation of the adjustment wall.

5. The grain drying conveying device according to claim 4, characterized in that: The power unit includes a power arm rotatably arranged on the hopper, and a spring arranged between the latch and the hopper, the power arm can be transmission-connected to the latch, and the power arm is arranged on one side of the driving arm toward the direction of travel of the hopper; The hopper drives the power arm to move until the power arm contacts the drive rail, and the drive rail can push the power arm to rotate away from the moving direction of the hopper, so that the power arm drives the latch to release the adjustment wall; The spring can drive the latch to stop the adjusting wall.

6. The grain drying conveying device according to claim 5, characterized in that: A rotating seat is formed at the hinged position of the power arm and the hopper, and the latch is formed integrally with the rotating seat. A driving seat is formed at the hinged position of the driving arm and the hopper, and a socket for inserting the latch is provided on the surface side of the driving seat.

7. The grain drying conveying device according to claim 5, characterized in that: The driving rail includes a limiting section and a pushing section arranged along the traveling direction of the hopper, and the pushing section protrudes from the side facing the hopper compared to the limiting section, so that, When the power arm moves to the limiting section, it can be pushed to drive the latch to release the adjustment wall; When the driving arm moves to the position of the limiting section, the adjusting wall can be rotated to the material guiding state, and when the driving arm moves to the position of the pushing section, the pushing section can drive the arm to rotate so that the adjusting wall moves to the operating state.

8. The grain drying conveying device according to claim 7, characterized in that: The frame is provided with the driving rail at the position of the upper cylinder, and the driving rail further comprises a guide section arranged between the limiting section and the pushing section; The limiting section of the driving rail at the upper cylinder position extends from the upper side of the center of the upper cylinder to the upper side of the lower edge of the discharge port, and the guide section is arranged so that when the driving arm of the hopper moves to the guide section position, the outer edge of the adjusting wall of the hopper moves from the upper side of the lower edge of the discharge port to the lower side of the lower edge of the discharge port.

9. The grain drying conveying device according to claim 7, characterized in that: The frame is provided with the driving rail at the position of the lower barrel, and the lower edge of the feed port is formed with an inclined plate extending into the inner cavity. The driving rail at the position of the lower barrel is arranged as follows: The limiting section extends from the lower side of the center of the lower barrel to the upper side of the upper edge of the feed port, and the pushing section is arranged on the upper side of the limiting section; The limiting section is formed with a transition protrusion at the lower edge of the feed port, and the transition protrusion is arranged so that when the driving arm moves to the position of the transition protrusion, the adjustment wall of the hopper moves from the lower side of the inclined plate to the upper side of the inclined plate.

10. The grain drying conveying device according to claim 5, characterized in that: The latch is configured as an electric latch.

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