Photovoltaic Powered Smart Rice Machine

Abstract

The present invention belongs to the technical field of energy-saving rice milling equipment, and specifically relates to a photovoltaic-powered intelligent rice mill, including a casing and a photovoltaic power generation device arranged on the casing, wherein a grain storage bin, a discharging device and a rice milling device are arranged in the casing from top to bottom, and the photovoltaic power generation device provides electric energy for the operation of the intelligent rice mill; the photovoltaic power generation device includes a photovoltaic panel, a central controller, a DC-DC converter, an inverter and a storage element, and the photovoltaic panel is installed on the upper part of the casing. In this solution, due to the setting of the photovoltaic power generation device, the intelligent rice mill can bring its own electric energy, even if the location where the intelligent rice mill is placed is not convenient for obtaining electric energy, it will not affect the normal operation of the intelligent rice mill, so that the intelligent rice mill has a wider range of applications.

Description

Technical Field

[0001] The invention belongs to the technical field of energy-saving rice milling equipment, and in particular relates to a photovoltaic-powered intelligent rice mill. Background Art

[0002] As the urbanization process continues to accelerate, more and more people are far away from the grain production areas. The large-scale centralized storage, long-distance transportation, and pre-production operations make it increasingly difficult to keep the grain fresh and maintain its quality. Now people buy rice directly from the market or supermarket and buy rice that has been processed by husking and milling. It is not ruled out that unscrupulous merchants sell expired or spoiled grains. We cannot confirm whether the rice purchased in the supermarket is fresh and of guaranteed quality.

[0003] In order to solve the above technical problems, an intelligent unmanned self-service rice milling and vending machine has appeared on the market. This intelligent unmanned self-service rice milling and vending machine is generally set up in residential areas and squares. It combines rice storage, rice milling, and rice output. It adopts electric mode and does not require manual operation. It can provide customers with fresh, nutritious and healthy freshly shelled and milled rice conveniently and timely. Moreover, the equipment is placed at the doorstep (in the community or entrusted to property management), which is convenient for extraction, effectively solving the problem of people's difficulty in buying fresh rice.

[0004] Although the existing intelligent unmanned self-service rice milling vending machine can provide customers with fresh and healthy rice, there are still some defects that need to be improved. The interior of the intelligent rice machine is generally equipped with a falling mechanism, a rice milling device, and a mechanism to keep the rice dry. The work of these mechanisms consumes a lot of electricity and has a high energy cost. In addition, since the intelligent rice machine will be placed in different locations according to demand, some places are not convenient for obtaining electricity, which may easily cause the intelligent rice machine to fail to work properly. Summary of the invention

[0005] The present invention is intended to provide a photovoltaic-powered smart rice machine to solve the problem that it is inconvenient to obtain electric energy in some places, which easily leads to the smart rice machine not being able to work normally.

[0006] In order to achieve the above-mentioned purpose, the scheme of the present invention is as follows: a photovoltaic-powered intelligent rice machine comprises a casing and a photovoltaic power generation device arranged on the casing, a grain storage bin, a discharging device and a rice milling device are arranged in the casing from top to bottom, and the photovoltaic power generation device provides electric energy for the operation of the intelligent rice machine; the photovoltaic power generation device comprises a photovoltaic cell panel, a central controller, a DC-DC converter, an inverter and a storage element, and the photovoltaic cell panel is installed on the upper part of the casing.

[0007] The working principle and beneficial effects of this solution are:

[0008] A photovoltaic power generation device is arranged on the casing, which can convert solar energy into electrical energy and store the electrical energy in a storage element. When the rice milling device needs to use electrical energy, it can be provided by the photovoltaic power generation device, which saves energy. In this solution, due to the arrangement of the photovoltaic power generation device, the smart rice machine can bring its own electrical energy. Even if the location where the smart rice machine is placed is not convenient for obtaining electrical energy, it will not affect the normal operation of the smart rice machine, making the smart rice machine have a wider range of applications.

[0009] Optionally, the photovoltaic cell panel is a cadmium telluride solar cell panel. Cadmium telluride solar cell panels have simple structures, low manufacturing costs, and are easy to achieve large-scale production. In addition, photovoltaic cells have the advantages of high light absorption rate, high conversion efficiency, and stable battery performance, and are very suitable for use in smart rice machines.

[0010] Optionally, three photovoltaic panels are provided, one of which is installed on the top of the casing, and the other two photovoltaic panels are hinged on the left and right sides of the top of the casing; the casing is provided with two adjustment mechanisms, and the two adjustment mechanisms are respectively used to adjust the angles of the two hinged photovoltaic panels; the adjustment mechanism includes a base rod hinged on the casing and a sliding rod slidably connected to the base rod, and the end of the sliding rod away from the base rod is hinged on the photovoltaic panel; the sliding rod is provided with a groove, a protrusion is slidably connected in the groove, an elastic member for resetting the protrusion is provided in the groove, and a plurality of through holes that can cooperate with the protrusion are provided on the base rod. The three photovoltaic panels can enable the smart rice machine of this scheme to obtain solar energy more fully. Two of the photovoltaic panels are hinged on the left and right sides of the casing, and the angle of the photovoltaic panels is adjustable, so that the photovoltaic panels can receive sunlight more fully. Press the protrusion, move the sliding rod, and adjust the angle of the photovoltaic panel by adjusting the extension length of the sliding rod, which is convenient to adjust.

[0011] Optionally, the discharging device includes a discharging barrel, a power storage mechanism, a rotating shaft rotatably connected in the discharging barrel and a positioning mechanism for limiting the rotation of the rotating shaft, and a plurality of discharging plates are fixed on the rotating shaft; the cross-section of the discharging barrel is circular, and the ends of the discharging plates can maintain contact with the inner wall of the discharging barrel; a feeding channel located on one side of the rotating shaft is connected between the grain storage bin and the discharging barrel, and a discharging channel is connected to the lower part of the discharging barrel; magnets are fixed on two opposite side walls of the discharging barrel, and a coil is provided on the discharging plate and / or the rotating shaft, and the coil is connected to the power storage mechanism through a conductive member.

[0012] When the intelligent rice machine does not need to work, the rotating shaft is fixed by the positioning mechanism so that the rotating shaft cannot rotate. At this time, the discharge plate on the rotating shaft blocks the feeding channel, and the rice in the grain storage bin cannot enter the discharge barrel. When the intelligent rice machine needs to discharge rice, the positioning mechanism loosens the rotating shaft. Since the rice in the grain storage bin exerts a force on the discharge plate above one side of the rotating shaft, the discharge plate rotates downward. Driven by the discharge plate, the rotating shaft and other discharge plates on the rotating shaft rotate together. Under the continuous action of the rice in the grain storage bin, the rotating shaft and the discharge plates on the rotating shaft rotate continuously. During the rotation of the discharge plate, the rice is continuously transported to the discharge channel, and then enters the rice milling device through the discharge channel, and the rice milling device performs the shelling process. During the rotation of the discharge plate and the rotating shaft, the coil cuts the magnetic flux lines between the two magnets, and the coil generates electrical energy, which is stored in the power storage mechanism. When the power stored in the photovoltaic power generation device is insufficient, the power in the power storage mechanism can be used to ensure the normal operation of the intelligent rice machine.

[0013] In this scheme, the gravitational potential energy of the falling rice is converted into electrical energy and stored. Although the intelligent rice machine consumes a certain amount of energy each time it works, at the same time, the gravitational potential energy of the falling rice is converted and stored, and sufficient and effective energy is collected to ensure the normal operation of the intelligent rice machine.

[0014] Optionally, a cavity is opened in the discharge plate, and the coil is installed in the cavity. The coil is stored in the cavity, which can effectively prevent the rice from contacting the coil, so that the rice is stuck in the coil, which has a better protective effect on the coil.

[0015] Optionally, there are 5 discharge plates, which are evenly distributed along the circumference of the rotating shaft. In practice, it is found that setting 5 discharge plates can not only block the discharge barrel well, prevent the rice from being discharged through the discharge barrel when the rotating shaft does not rotate, but also rotate smoothly under the gravity of the rice.

[0016] Optionally, the positioning mechanism includes a positioning part, a connecting cylinder and at least two sliding cylinders distributed circumferentially around the rotating shaft, the sliding cylinder is located on one side of the rotating shaft; a pipeline is connected between the sliding cylinder and the connecting cylinder, a positioning block that can contact the rotating shaft is slid and sealed in the sliding cylinder, and a piston is slid and sealed in the connecting cylinder; the positioning part is used to limit the movement of the piston. When it is necessary to take rice from the intelligent rice machine, the positioning part is released to make the piston move away from the positioning block, the pressure in the connecting cylinder and the sliding cylinder is reduced, and the positioning block moves away from the rotating shaft. At this time, the rotating shaft will not limit the movement of the discharge plate without the fixing effect of the positioning block. The rice is piled on the discharge plate above one side of the rotating shaft. Under the action of the gravity of the rice, the discharge plate rotates, and the rice in the grain storage bin is transported to the rice milling device during the rotation of the discharge plate. When it is necessary to stop the intelligent rice machine from discharging rice, the positioning part is operated to make the piston move toward the side close to the positioning block. The pressure in the connecting cylinder and the sliding cylinder increases, and the positioning block moves toward the side of the rotating shaft. The positioning block contacts the rotating shaft, and under the action of the positioning block, the rotating shaft and the discharge plate on the rotating shaft stop rotating, and the rice in the grain storage bin stops transferring to the rice milling device.

[0017] Optionally, there are three slide cylinders, which are evenly distributed along the circumference of the rotating shaft. If there are three slide cylinders, there are also three positioning blocks, which can hold and fix the rotating shaft, and the fixing effect is good.

[0018] Optionally, the positioning part includes a screw threadedly connected in the connecting tube, and one end of the screw extending into the connecting tube is rotatably connected to the piston. The moving direction of the piston in the connecting tube can be controlled by controlling the screwing direction, so that the movement of the piston meets the requirements; when the screw is not turned, the piston will not move under the action of the screw, and the fixing effect is good.

[0019] Optionally, the positioning part is a cylinder, and the piston rod of the cylinder is connected to the piston. By controlling the movement direction of the cylinder piston rod, the movement direction of the piston in the connecting tube can be controlled, so that the movement of the piston meets the requirements and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a photovoltaic-powered intelligent rice machine in Embodiment 1 of the present invention;

[0021] Figure 2 for Figure 1 Cross-sectional view of the rotating shaft;

[0022] Figure 3 Based Figure 2 Cross-sectional view of the middle BB;

[0023] Figure 4 It is a structural schematic diagram of the positioning mechanism in the second embodiment of the present invention. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The figure marks in the drawings of the specification include: casing 10, photovoltaic panel 20, base rod 30, sliding rod 31, grain storage bin 40, feed channel 41, discharge channel 42, rotating shaft 50, discharge plate 51, coil 511, connecting cylinder 60, piston 61, screw 62, pipeline 63, slide cylinder 70, positioning block 71, discharge cylinder 80, cylinder 90.

[0026] Embodiment 1

[0027] This embodiment is basically Figure 1 As shown: the photovoltaic-powered intelligent rice machine includes a housing 10 and a photovoltaic power generation device arranged on the housing 10, and the photovoltaic power generation device provides electric energy for the operation of the intelligent rice machine of this scheme. A display screen is installed on the outer wall of the housing 10, and corresponding information can be obtained through the display screen; a grain storage bin 40, a discharging device and a rice milling device are installed in the housing 10 from top to bottom, and the photovoltaic power generation device includes a photovoltaic panel 20, a central controller, a DC-DC converter, an inverter and a storage element all installed on the housing 10. In this embodiment, the storage element is a battery. The photovoltaic power generation device of this scheme is constituted as an independent photovoltaic power generation system. The independent photovoltaic power generation system is a mature technology. In this embodiment, the connection relationship and control relationship between the various components in the photovoltaic power generation device will not be repeated.

[0028] In this embodiment, the photovoltaic panel is a cadmium telluride solar panel. The cadmium telluride solar panel has a simple structure, low manufacturing cost, and is easy to mass produce. In addition, the photovoltaic panel has the advantages of high light absorption rate, high conversion efficiency, and stable battery performance, and is very suitable for use in smart rice machines.

[0029] There are three photovoltaic panels 20, one of which is fixedly mounted on the top of the housing 10, and the other two photovoltaic panels 20 are hinged on the left and right sides of the top of the housing 10. The housing 10 is provided with two adjustment mechanisms, which are used to adjust the angles of the two hinged photovoltaic panels 20. The adjustment mechanism includes a base rod 30 hinged on the housing 10 and a sliding rod 31 slidably connected to the base rod 30. Specifically, a slide groove is provided on the base rod 30, and the sliding rod 31 is slidably connected in the slide groove; one end of the sliding rod 31 away from the base rod 30 is hinged on the photovoltaic panel 20. A groove is provided on the sliding rod 31, and a protrusion is slidably connected in the groove. A reset member is provided in the groove. In this embodiment, the reset member is a spring, one end of the spring is connected to the inner wall of the groove, and the other end is connected to the protrusion. When no other external force is applied to the protrusion, the protrusion protrudes out of the groove under the action of the spring. The base rod 30 is provided with a plurality of through holes that can cooperate with the protrusions, and the plurality of through holes are evenly distributed along the length direction of the base rod 30 .

[0030] The discharging device includes a discharging barrel 80, a positioning mechanism, a power storage mechanism and a rotating shaft 50. The discharging barrel 80 is fixedly installed in the housing 10, and the rotating shaft 50 is rotatably connected in the discharging barrel 80. Specifically, bearings are fixedly installed on the left and right side walls of the discharging barrel 80, and the two ends of the rotating shaft 50 are respectively fixed in the inner rings of the two bearings, and the rotating shaft 50 is interference fit with the inner rings of the bearings. A plurality of discharging plates 51 are welded on the rotating shaft 50, and the number of the discharging plates 51 can be 4, 5, 6, etc. In this embodiment, there are 5 discharging plates 51, and the 5 discharging plates 51 are evenly distributed along the circumference of the rotating shaft 50. The cross section of the discharging barrel 80 is circular, and the end of the discharging plate 51 can keep in contact with the inner wall of the discharging barrel 80. Under the action of the discharging plate 51, the discharging barrel 80 is always in a blocked state. A feed channel 41 is connected between the grain storage bin 40 and the upper part of the discharge barrel 80, and the feed channel 41 is located above the left side of the rotating shaft 50; a discharge channel 42 is connected between the lower part of the discharge barrel 80 and the upper part of the rice milling device, and the rice in the discharge barrel 80 can enter the rice milling device through the discharge channel 42, and the rice milling device performs husking. Magnets (not shown) are fixedly installed on the left and right side walls of the discharge barrel 80, and a coil 511 is provided on the discharge plate 51 and / or the rotating shaft 50. In this embodiment, the coil 511 is arranged on the discharge plate 51. A cavity is opened in the discharge plate 51, and the coil 511 is installed in the cavity. The coil 511 is connected to the power storage mechanism through a conductive member. During the rotation of the discharge plate 51 and the rotating shaft 50, the coil 511 cuts the magnetic flux lines between the two magnets, and the coil 511 generates electrical energy, which is stored in the power storage mechanism. In this solution, the power storage mechanism is a storage battery, which is used as a backup power source. When the energy provided by the photovoltaic power generation device is insufficient, the storage battery can provide electrical energy to ensure the normal operation of the smart rice machine.

[0031] join Figure 2 , 3 As shown, the positioning mechanism includes a positioning portion, a connecting cylinder 60 and at least two slide cylinders 70, and the connecting cylinder 60 and the slide cylinder 70 are fixedly mounted on the housing 10. In this embodiment, there are three slide cylinders 70, one end of the rotating shaft 50 extends out of the discharge cylinder 80, and the three slide cylinders 70 are located outside the discharge cylinder 80 and are evenly distributed around the portion of the rotating shaft 50 extending out of the discharge cylinder 80. A pipeline 63 is connected between the slide cylinder 70 and the connecting cylinder 60, and a positioning block 71 is slidably and sealedly connected in the slide cylinder 70, and the positioning block 71 can contact the surface of the rotating shaft 50; a piston 61 is slidably and sealedly connected in the connecting cylinder 60; the slide cylinder 70, the connecting cylinder 60, and the pipeline 63 between the positioning block 71 and the piston 61 are filled with hydraulic oil. The positioning portion is used to limit the movement of the piston 61. The positioning portion includes a screw 62 threadedly connected to the connecting tube 60. One end of the screw 62 extends into the connecting tube 60 and is rotatably connected to the piston 61. Specifically, a groove with a T-shaped cross-section is opened on the piston 61. One end of the screw 62 is engaged in the groove and can rotate along the groove.

[0032] A photovoltaic power generation device is arranged on the casing 10, which can convert solar energy into electrical energy and store the electrical energy in a storage element. When the rice milling device needs to use electrical energy, it can be provided by the photovoltaic power generation device, which saves energy greatly.

[0033] When the intelligent rice machine does not need to work, the screw 62 is turned to make the piston 61 move toward the side close to the positioning block 71, the pressure in the connecting tube 60 and the sliding tube 70 increases, the positioning block 71 moves toward the side of the rotating shaft 50, and the positioning block 71 contacts the rotating shaft 50. Under the action of the positioning block 71, the rotating shaft 50 and the discharge plate 51 on the rotating shaft 50 are fixed. At this time, the discharge plate 51 on the rotating shaft 50 blocks the feed channel 41, and the rice in the grain storage bin 40 cannot enter the discharge barrel 80. When the intelligent rice machine needs to discharge rice, the screw 62 is turned in the opposite direction to make the piston 61 move away from the positioning block 71, the pressure in the connecting tube 60 and the sliding tube 70 decreases, and the positioning block 71 moves away from the rotating shaft 50. At this time, the rotating shaft 50 does not restrict the movement of the discharge plate 51 without the fixing effect of the positioning block 71. Because the rice in the grain storage bin 40 exerts a force on the discharge plate 51 on the upper left side of the rotating shaft 50, the discharge plate 51 rotates downward. Driven by the discharge plate 51, the rotating shaft 50 and other discharge plates 51 on the rotating shaft 50 rotate together. Under the continuous action of the rice in the grain storage bin 40, the rotating shaft 50 and the discharge plates 51 on the rotating shaft 50 rotate continuously. During the rotation of the discharge plate 51, the rice is continuously transported to the discharge channel 42, and then enters the rice milling device through the discharge channel 42, and the rice milling device performs the shelling process. During the rotation of the discharge plate 51 and the rotating shaft 50, the coil 511 cuts the magnetic flux lines between the two magnets, and the coil 511 generates electrical energy, which is stored in the power storage mechanism. When the power stored in the photovoltaic power generation device is insufficient, the power in the power storage mechanism can be used to ensure the normal operation of the intelligent rice machine.

[0034] Embodiment 2

[0035] The difference between this embodiment and the first embodiment is that the positioning part of the positioning mechanism of this embodiment is different from that of the first embodiment. Figure 4 As shown, in this embodiment, the positioning part is a cylinder 90 fixed on the housing 10, and the piston 61 rod of the cylinder 90 is connected to the piston 61. By controlling the movement direction of the piston 61 rod of the cylinder 90, the movement direction of the piston 61 in the connecting tube 60 can be controlled, so that the movement of the piston 61 meets the requirements, and the operation is simple.

[0036] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the present invention.

Claims

1. Photovoltaic powered smart rice machine, characterized by: The invention comprises a casing and a photovoltaic power generation device arranged on the casing. A grain storage bin, a discharging device and a rice milling device are arranged in the casing from top to bottom. The photovoltaic power generation device provides electric energy for the operation of the intelligent rice machine. The photovoltaic power generation device comprises a photovoltaic cell panel, a central controller, a DC-DC converter, an inverter and a storage element. The photovoltaic cell panel is installed on the upper part of the casing. The discharging device comprises a discharging barrel, a storage mechanism, a rotating shaft rotatably connected in the discharging barrel and a positioning mechanism for limiting the rotation of the rotating shaft. A plurality of discharging plates are fixed on the rotating shaft. The cross section of the discharging barrel is circular, and the end of the discharging plate can be kept in contact with the inner wall of the discharging barrel. maintain contact; a feeding channel located on one side of the rotating shaft is connected between the grain storage bin and the discharging barrel, and a discharging channel is connected to the lower part of the discharging barrel; magnets are fixed on two opposite side walls of the discharging barrel, a coil is provided on the discharging plate and / or the rotating shaft, the coil is connected to the power storage mechanism through a conductive member, the positioning mechanism includes a positioning part, a connecting barrel and at least two sliding barrels distributed circumferentially around the rotating shaft, the sliding barrel is located on one side of the rotating shaft; a pipeline is connected between the sliding barrel and the connecting barrel, a positioning block that can contact the rotating shaft is slid and sealed in the sliding barrel, and a piston is slid and sealed in the connecting barrel; the positioning part is used to limit the movement of the piston.

2. The photovoltaic powered intelligent rice machine according to claim 1, characterized in that: The photovoltaic panels are cadmium telluride solar panels.

3. The photovoltaic powered intelligent rice machine according to claim 2, characterized in that: There are three photovoltaic panels, one of which is installed on the top of the casing, and the other two photovoltaic panels are hinged on the left and right sides of the top of the casing; the casing is provided with two adjustment mechanisms, and the two adjustment mechanisms are respectively used to adjust the angles of the two hinged photovoltaic panels; the adjustment mechanism comprises a base rod hinged on the casing and a sliding rod slidably connected to the base rod, and one end of the sliding rod away from the base rod is hinged to the photovoltaic panel; the sliding rod is provided with a groove, a protrusion is slidably connected in the groove, an elastic member for resetting the protrusion is provided in the groove, and a plurality of through holes that can cooperate with the protrusion are provided on the base rod.

4. The photovoltaic powered intelligent rice machine according to claim 3, characterized in that: A cavity is opened in the discharge plate, and the coil is installed in the cavity.

5. The photovoltaic powered intelligent rice machine according to claim 4, characterized in that: There are three slide cylinders, which are evenly distributed along the circumference of the rotating shaft.

6. The photovoltaic powered intelligent rice machine according to claim 5, characterized in that: The positioning part comprises a screw rod which is threadedly connected in the connecting tube, and one end of the screw rod which extends into the connecting tube is rotatably connected with the piston.

7. The photovoltaic powered intelligent rice machine according to claim 6, characterized in that: The positioning part is a cylinder, and the piston rod of the cylinder is connected with the piston.

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