Grain conveying device and grain drying and storage system having the same

Abstract

The present invention relates to the technical field of grain storage and transportation, and specifically provides a grain conveying device and a grain drying and storage system having the device. The grain conveying device comprises a frame, and a set of chain transmission mechanisms are symmetrically installed on the left and right sides of the frame, and the pins between two adjacent chain links in the two sets of chain transmission mechanisms are coaxially arranged, and the two coaxial pins are commonly connected to the load-bearing shafts between the two sets of chain transmission mechanisms, and all the load-bearing shafts are commonly covered with a conveyor belt on the outside, and a plurality of hoppers are sequentially installed on the outer surface of the conveyor belt along its transmission direction; the chain transmission mechanism is also transmission-connected to a power-assisting mechanism, and the power-assisting mechanism is installed in a granary. The grain drying and storage system comprises a granary and a grain conveying device, and a plurality of buffer plates arranged in an alternating manner are arranged in the granary. The present invention can realize the lossless lifting and transportation of grain, and can effectively save driving force through the power-assisting mechanism, thereby saving energy and reducing emissions.

Description

Technical Field

[0001] The invention relates to the technical field of grain storage and transportation, and in particular to a grain conveying device and a grain drying and storage system having the device. Background Art

[0002] With the increasing development of urbanization, there are fewer and fewer idle and open spaces, and the problem of farmers storing and drying grain has become increasingly prominent. The patent "CN112607235A Intelligent grain drying and storage integrated warehouse and drying method" discloses a device and method for storing and drying grain. In this method, the grain at a low place is transported to the top of the granary by an auger, and the granary is used for integrated drying and storage. Since the grains are all granular, they will fall into the gap of the equipment during transportation, so the auger transportation is prone to jamming, which will damage the grain and the machine, reduce the quality of the grain, and delay the grain transportation process. The patent "CN 207011296 U Grain Storage Drying Tower" discloses a grain transportation device, but the transportation device only discloses that the feed port is set at the bottom and the distribution port is set at the top, and there is no specific lifting structure. It is unclear how the grain is transported to a high place. In addition, the grain with high moisture content has a large specific gravity, and it requires a large driving force to lift the grain to a high place. In the prior art, the lifting structure is directly driven by the motor to lift the grain, which requires a high power for the motor, and the entire drying process consumes a lot of electricity. Summary of the invention

[0003] In view of the above problems, the present invention provides a grain conveying device and a grain drying and storage system having the device. The invention utilizes a chain transmission mechanism to drive the hopper to circulate, thereby realizing lossless lifting and transportation of grain. Auxiliary power is provided to the system through a power-assisting mechanism, thereby effectively reducing the power of the motor, thereby solving the problems in the prior art that grain lifting and transportation may damage grain and machines and consume a lot of electricity.

[0004] A grain conveying device comprises a frame, wherein a set of chain transmission mechanisms are symmetrically installed on the left and right sides of the frame, the pin shaft between two adjacent chain links in each set of chain transmission mechanisms is coaxially arranged with the pin shaft between two adjacent chain links in the other set of chain transmission mechanisms, and the two coaxial pin shafts are commonly connected to the load-bearing shaft between the two sets of chain transmission mechanisms, and the outside of all the load-bearing shafts is commonly covered with a conveyor belt, and the outer surface of the conveyor belt is sequentially installed with a plurality of hoppers along the transmission direction thereof; The chain transmission mechanism is also connected to a power-assisting mechanism, and the power-assisting mechanism includes a rotating shaft rotatably installed in the granary, and a plurality of transfer buckets are evenly distributed in the circumference of the rotating shaft; After the hopper is loaded with grain, it moves with the conveyor belt to the top of the granary and pours the grain into the granary. The grain falls into the transfer bucket in the granary. Under the action of its own gravity, the grain drives the transfer bucket to drive the rotating shaft to rotate in the vertical plane. The rotational power of the rotating shaft is transmitted to the chain drive mechanism, providing auxiliary power for the chain drive mechanism.

[0005] Preferably, a plurality of connecting seats are installed on the surface of the conveyor belt, and the hopper is hinged to the connecting seats.

[0006] Preferably, the chain transmission mechanism is provided with a driving shaft, the driving shaft is connected to a driving motor via a first transmission belt, and the driving shaft is connected to a rotating shaft via a second transmission belt.

[0007] Preferably, the first transmission belt and the second transmission belt are coaxially arranged on the driving shaft, and a one-way bearing is arranged between the second transmission belt and the driving shaft.

[0008] Preferably, the two sets of chain transmission mechanisms are symmetrically arranged on both sides of the conveyor belt.

[0009] The present invention also discloses a grain drying and storage system, which comprises a grain silo, wherein the grain silo is provided with the grain conveying device as described above.

[0010] Preferably, a plurality of buffer plates arranged in an alternating manner are provided in the granary, one end of the buffer plate is fixed to the inner wall of the granary, and the other end is suspended, and the suspended end of the buffer plate is lower than the fixed end.

[0011] Preferably, the power assist mechanism is located below the suspended end of one of the buffer plates.

[0012] The present invention arranges a conveyor belt between two sets of chain transmission mechanisms, and arranges a bearing shaft in the conveyor belt, connects the pin shaft in the chain transmission mechanism with the bearing shaft, and increases the transmission strength and the overall rigidity of the device. A hopper is installed on the surface of the conveyor belt, and the grain is transported to a high place through the hopper and poured into the granary. The whole process is transported in the hopper, and compared with the auger conveying, lossless conveying can be achieved. The hopper is connected to the conveyor belt, which is easy to install and convenient for modular maintenance. The rotating shaft and the transfer bucket in the granary are indirectly connected to the chain transmission mechanism through the second transmission belt, which provides auxiliary power for the conveying of the chain transmission mechanism, effectively reduces the operating power of the motor, saves electric energy, and reduces energy consumption.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes rapid transportation of grain and transportation equipment without loss by arranging a chain transmission mechanism, a conveyor belt and a hopper. The pin shaft in the chain transmission mechanism is connected with the load-bearing shaft in the conveyor belt, thereby improving the overall rigidity and transmission strength of the device and increasing the service life of the device.

[0014] 2. The present invention installs a power-assisting mechanism consisting of a rotating shaft and a transfer bucket in the granary. Grain falls into the transfer bucket in the granary. Under the action of its own gravity, the grain drives the transfer bucket to drive the rotating shaft to rotate in a vertical plane. The rotational power of the rotating shaft is transmitted to the chain transmission mechanism through the second transmission belt, providing auxiliary power for the chain transmission mechanism, saving motor driving force, effectively reducing motor power, and saving electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic cross-sectional diagram of the planar structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the power-assisting mechanism; Figure 5 It is a schematic diagram of the three-dimensional structure of the grain conveying device after removing the hopper; Figure 6 yes Figure 5 A magnified view of middle; In the figure, 1, frame, 2, chain transmission mechanism, 2-1, pin shaft, 2-2, first chain link, 2-3, second chain link, 3, material receiving mechanism, 4, hopper, 5, conveyor belt, 6, buffer plate, 7, granary, 8, rotating shaft, 9, second transmission belt, 10, driving shaft, 11, first transmission belt, 12, driving motor, 13, transfer bucket, 14, bearing shaft, 15, connecting seat, 16, guide plate. DETAILED DESCRIPTION

[0017] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0018] Embodiment 1 like Figures 1 to 6As shown, the present invention discloses a grain conveying device, which comprises a frame 1, a chain transmission mechanism 2, a bearing shaft 14, a conveyor belt 5, a connecting seat 15 and a hopper 4. The frame 1 is a horizontal U-shaped structure, and four height-adjustable legs are installed at the lower end of the frame 1 to adapt to the ground at different heights. A set of chain transmission mechanisms 2 is symmetrically installed on the left and right sides of the frame 1, specifically: a transmission sprocket is installed at the two end points of the horizontal U-shaped structure and the inflection point where the vertical part and the horizontal part are connected, and the transmission chain is sleeved on the outside of the transmission sprocket, connecting all the transmission sprockets on one side of the frame 1 into an integral transmission system. A conveyor belt 5 is sleeved on the outside of the middle part of the frame 1, and a plurality of mutually parallel bearing shafts 14 are embedded in the conveyor belt 5 along its movement direction, and the two ends of the bearing shaft 14 are correspondingly connected to the transmission chain on the corresponding side. Specifically: the first chain link 2-2 and the second chain link 2-3 are hinged to each other through a pin 2-1, and the bearing shaft 14 is coaxially connected to the pin 2-1. The coaxial connection mentioned here can be an integrated direct connection, that is, an axis passes through the chain link of the left transmission chain, the conveyor belt 5 and the chain link of the right transmission chain, the part located in the chain link is called the pin 2-1, and the part located in the conveyor belt 5 is called the bearing shaft 14; it can also be connected as a whole by a coupling or a pin to connect the bearing shaft 14 and the two corresponding pins 2-1 at both ends of the bearing shaft 14. The pin 2-1 of the transmission chain is directly connected to the conveyor belt 5 through the bearing shaft 14, and the hopper 4 is installed on the conveyor belt 5 to achieve direct force transmission. The bearing shaft 14 is added to the conveyor belt 5, which can provide power for the conveyor belt 5 and enhance the strength of the conveyor belt 5, thereby enhancing the transmission strength and overall rigidity of the entire device, and having overall stability and transmission efficiency. The conveyor belt 5 is an integral flexible structure, and the width of the hopper 4 is smaller than the width of the conveyor belt 5. Even if the hopper scatters material, it is scattered on the surface of the conveyor belt 5. With the movement of the conveyor belt 5, it is finally transported to the granary 7, and will not enter the internal gap of the transmission system to cause a jam.

[0019] In the middle part of the surface of the conveyor belt 5, multiple groups of equally spaced connection seats 15 are sequentially arranged along the direction of movement thereof, and the connection seats 15 are provided with through holes. A mounting seat is arranged on the side of the hopper 4 close to the conveyor belt 5, and the mounting seat is also provided with through holes. The mounting seat and the connection seat 15 are plugged and matched with each other, and then a connecting shaft is inserted into the through holes of the mounting seat and the connection seat 15, and the mounting seat and the connection seat 15 are rotatably connected to realize a connection mode in which the hopper 4 and the conveyor belt 5 rotate relative to each other in a vertical plane. Since the connection seat 15 and the mounting seat of the hopper 4 are only connected through the connecting shaft, the hopper 4 will rotate relative to the conveyor belt 5. Only in this way can the hopper 4 be ensured to run smoothly around the horizontally placed U-shaped frame 1 during the transmission process. However, after being loaded with grain, the hopper 4 may tilt during vertical movement, resulting in material spillage. Therefore, the hopper 4 is designed to be a right-angled trapezoidal structure, and the rectangular plane formed by the right-angled sides of the right-angled trapezoidal structure is in contact with the surface of the conveyor belt 5. When the hopper 4 tilts, the conveyor belt 5 limits the hopper 4, offsetting the tilting force caused by the weight of the grain on the hopper 4, and preventing material spillage.

[0020] Drive sprockets are installed at the end points and inflection points of the horizontal U-shaped structure to change the movement direction of the drive chain. The conveyor belt 5 connected to the drive chain also changes its movement direction, thereby changing the opening direction of the hopper 4 on the surface of the conveyor belt 5, thereby realizing a series of processes of receiving, transporting and dumping grain.

[0021] The sprockets on both sides at the inflection point of the end below the frame 1 are respectively installed on the same drive shaft 10, and the drive shaft 10 is connected to the drive motor 12 through a transverse first transmission belt 11, and the drive shaft 10 is connected to the power-assisting mechanism through an oblique second transmission belt 9. The power-assisting mechanism is installed in the granary 7, and includes a rotating shaft 8, and the two ends of the rotating shaft 8 are correspondingly installed on the two opposite side walls of the granary 7 and are rotatably connected to the two side walls. The two ends of the rotating shaft 8 each penetrate outward and protrude from the outside of the corresponding side walls of the granary 7, and the protruding parts at the two ends are respectively connected to the two ends of the drive shaft 10 through the second transmission belt 9 in a one-to-one transmission manner. A plurality of transfer buckets 13 are evenly arranged around the rotating shaft 8. The middle portion of the transfer bucket 13 is an inwardly concave arc with baffles on both sides. The entire longitudinal cross-sectional shape is similar to a fan blade. When grain falls from the hopper 4 into the granary 7, it just falls into the transfer bucket 13 composed of the inwardly concave arc and the baffles on both sides. The grain hits the transfer bucket 13 under the action of its own gravity, driving the transfer bucket 13 and the rotating shaft 8 to rotate in a vertical plane. The rotational power is transmitted to the drive shaft 10 through the second transmission belt 9, providing auxiliary driving force for the drive shaft 10, effectively saving the driving force of the drive motor 12.

[0022] In order to effectively utilize the auxiliary force of the power-assisting mechanism and prevent the driving motor 12 from driving the rotating shaft 8 to rotate through the transmission action of the first transmission belt 11, the driving shaft 10 and the second transmission belt 9, thereby consuming more motor driving force and producing the opposite effect, a one-way bearing is provided between the second transmission belt 9 and the driving shaft 10. Figure 2 As shown, when the rotating shaft 8 rotates driven by the transfer bucket 13, the rotating shaft 8 drives the outer ring of the one-way bearing to rotate clockwise through the second transmission belt 9, the wedge block inside the outer ring squeezes the roller, the roller squeezes the inner ring, the inner and outer rings of the one-way bearing are relatively locked and rotate synchronously, and the second transmission belt 9 can effectively drive the drive shaft 10 to rotate clockwise under the transmission action of the one-way bearing, that is, the power-assisting mechanism plays a power-assisting role; when no grain falls into the transfer bucket 13 and the rotating shaft 8 does not rotate, the driving motor 12 drives the drive shaft 10 to rotate, and the drive shaft 10 drives the inner ring of the one-way bearing to rotate clockwise (it can be understood that the inner ring is still stationary and the outer ring rotates counterclockwise). Driven by the tangential force of the inner ring, the roller moves away from the wedge block, and the inner ring, roller and outer ring of the one-way bearing are no longer in contact, so the inner ring of the one-way bearing can rotate freely, and the outer ring is not subject to the driving force and is in a stationary state. Therefore, when the driving shaft 10 drives the inner ring to rotate clockwise, it will not generate a driving force on the second transmission belt 9, and thus will not drive the rotating shaft 8 to rotate in the reverse direction. The drive motor 12 is a servo motor equipped with a feedback system. When the power-assisting mechanism does not provide auxiliary force, the servo motor operates at high load. When the power-assisting mechanism provides auxiliary force, the drive shaft 10 feeds back load information in real time, and the servo motor adjusts operating parameters in time to achieve low-load operation.

[0023] Embodiment 2 The present invention also discloses a grain drying and storage system, which includes the grain conveying device described in the first embodiment and a grain bin 7, in which a plurality of components such as Figure 3 The buffer plate 6 shown has one end fixed to the inner wall of the granary 7 and the other end suspended, and the height of the suspended end is lower than the height of the fixed end. The suspended ends of two adjacent layers of buffer plates 6 are arranged alternately, and an inclined guide plate 16 is set at the inner bottom end of the granary 7. The lower end of the guide plate 16 abuts against the side opening of the granary, and the outside of the side opening is connected with a material receiving mechanism 3, which is located below the frame 1. The grain is transported to the top of the granary 7 by the conveying device and falls into the granary 7, and then enters the material receiving mechanism 3 from the bottom of the granary 7, and then is transported to the top of the granary 7 by the conveying device again. After multiple cycles, the moisture is air-dried to achieve drying. After reaching the drying standard, the side opening of the granary 7 is sealed, and the grain is directly stored in the granary 7.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A food conveying device, characterized in that: The machine comprises a frame (1), wherein a set of chain transmission mechanisms (2) are symmetrically mounted on the left and right sides of the frame (1), the pin shaft (2-1) between two adjacent chain links in each set of chain transmission mechanisms (2) is coaxially arranged with the pin shaft (2-1) between two adjacent chain links in another set of chain transmission mechanisms (2), and the two coaxial pin shafts (2-1) are connected to a load-bearing shaft (14) between the two sets of chain transmission mechanisms, the outside of all the load-bearing shafts (14) are covered with a conveyor belt (5), and a plurality of hoppers (4) are sequentially mounted on the outer surface of the conveyor belt (5) along the transmission direction thereof; The chain transmission mechanism (2) is also connected to a power-assisting mechanism, the power-assisting mechanism comprising a rotating shaft (8) rotatably mounted in the granary (7), a plurality of transfer buckets (13) being evenly distributed in the circumference of the rotating shaft (8); After the hopper (4) is loaded with grain, it moves to the top of the granary (7) along with the conveyor belt (5), pours the grain into the granary (7), and the grain falls into the transfer bucket (13) in the granary (7). Under the action of its own gravity, the grain drives the transfer bucket (13) to drive the rotating shaft (8) to rotate in a vertical plane, and the rotational power of the rotating shaft (8) is transmitted to the chain transmission mechanism (2), providing auxiliary power for the chain transmission mechanism (2).

2. A food conveying device according to claim 1, characterized in that: A plurality of groups of connection seats (15) are installed on the surface of the conveyor belt (5), and the hopper (4) is hingedly connected to the connection seats (15).

3. A food conveying device according to claim 1, characterized in that: The chain transmission mechanism (2) is provided with a drive shaft (10), the drive shaft (10) is connected to a drive motor (12) via a first transmission belt (11), and the drive shaft (10) is connected to a rotating shaft (8) via a second transmission belt (9).

4. A food conveying device according to claim 3, characterized in that: The first transmission belt (11) and the second transmission belt (9) are coaxially arranged on the drive shaft (10), and a one-way bearing is arranged between the second transmission belt (9) and the drive shaft (10).

5. A food conveying device according to claim 1, characterized in that: Two sets of chain transmission mechanisms (2) are symmetrically arranged on both sides of the conveyor belt (5).

6. A grain drying and storage system, characterized in that: It comprises a granary (7), wherein the granary (7) is equipped with the grain conveying device according to claim 3.

7. A grain drying and storage system according to claim 6, characterized in that: A plurality of buffer plates (6) arranged in a staggered manner are arranged in the granary (7), one end of the buffer plate (6) is fixed to the inner wall of the granary and the other end is suspended in the air, and the suspended end of the buffer plate (6) is lower than the fixed end.

8. A grain drying and storage system according to claim 7, characterized in that: The power assist mechanism is located below the suspended end of one of the buffer plates (6).

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