CN111448896B - Cleaning and drying device and method and harvester - Google Patents
Cleaning and drying device and method and harvester Download PDFInfo
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- CN111448896B CN111448896B CN202010325629.9A CN202010325629A CN111448896B CN 111448896 B CN111448896 B CN 111448896B CN 202010325629 A CN202010325629 A CN 202010325629A CN 111448896 B CN111448896 B CN 111448896B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 42
- 238000001035 drying Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 88
- 238000003860 storage Methods 0.000 claims abstract description 71
- 238000006243 chemical reaction Methods 0.000 claims abstract description 43
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- 238000012806 monitoring device Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- 238000004146 energy storage Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 20
- 235000009566 rice Nutrition 0.000 abstract description 20
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 2
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 19
- 238000011084 recovery Methods 0.000 description 14
- 235000013339 cereals Nutrition 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/44—Grain cleaners; Grain separators
- A01F12/446—Sieving means
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
- A01D41/127—Control or measuring arrangements specially adapted for combines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
- A01D41/133—Drying devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a cleaning and drying device and a cleaning and drying method and a harvester, wherein the cleaning and drying device comprises an energy conversion device, an electric energy collecting and processing system, an electric energy flow direction control system, a storage battery, a vibrating screen heating device, a supporting device and a vibrating screen bearing rolling guide rail; the energy conversion device is used for converting pressure energy generated by reciprocating motion of the screen body of the vibrating screen into electric energy, the electric energy collecting and processing system is used for collecting the electric energy generated by the energy conversion device, and the electric energy flow direction control system is used for judging whether the electric energy is used for charging the storage battery or for working the vibrating screen heating device according to the SOC value of the storage battery and the actual working current of the vibrating screen heating device and whether the storage battery is used for providing the electric energy for the vibrating screen heating device or not. The recycling and the utilization of reciprocating motion energy of the vibrating screen are realized, the collected energy is used for drying rice and charging a vehicle-mounted storage battery when the cleaning device cleans, the waste of unnecessary energy in the cleaning process is reduced, and the utilization and the conversion efficiency of the energy are effectively improved.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a cleaning and drying device and method and a harvester.
Background
When the crawler-type rice combine harvester works, the vibrating screen performs reciprocating motion to screen threshing grains, a rolling bearing on the vibrating screen generates great pressure on a guide rail in the reciprocating motion process, but the energy of the part is dissipated in a friction heat generating mode, so that the energy utilization efficiency of a cleaning device of the combine harvester is low, and great waste is caused to the whole combine harvester. Because the rice threshing mixture usually has higher moisture content of grains during cleaning, the subsequent cleaning efficiency is reduced, and therefore, the grains during cleaning can be cleaned in an online drying mode. But the online drying of the seeds in the cleaning process also needs additional energy, so that the method has important significance for improving the energy utilization efficiency of the combine harvester.
At present, the energy recovery and utilization device and method related to the cleaning device and the vibrating screen mainly have the following patents: the chinese patent with the publication number CN204136758U entitled "energy recovery and utilization device and hybrid vehicle" discloses an energy recovery and utilization device and a hybrid vehicle, which stores braking energy in a flywheel battery in the form of kinetic energy, and releases electric energy when the vehicle is started and accelerated to serve as a second power source to assist a power battery to provide power. The Chinese patent with application publication number CN106223391A and name "an excavator energy recovery and utilization system" discloses an excavator energy recovery and utilization system, which enables a first oil cylinder to retract through a first control valve, and enables recovered oil to be pressurized and enter a hydraulic accumulator through a rodless cavity of the first oil cylinder through a second control valve and a second oil cylinder, so as to realize the recovery of the potential energy of a movable arm; when the movable arm is lifted, the variable hydraulic pump and the hydraulic accumulator are controlled to drive the first oil cylinder to operate according to the flow requirement of the first oil cylinder, so that the potential energy of the movable arm is utilized; the invention discloses a vehicle energy recovery and utilization method based on an axle generator, which is characterized in that a double-voltage vehicle generator driven by a common vehicle clutch to a wheel transmission system shaft is adopted to replace a generator directly driven by an engine, the kinetic energy of braking and sliding of the vehicle is utilized to generate electricity under the control of an intelligent system, the energy is fully recovered, a super capacitor, a low-voltage storage battery and a high-voltage storage battery respectively store and recover the electric energy for use by vehicle electrical appliances, an electric braking function is provided for the vehicle, and the loss of a braking device is reduced.
The above patent can realize energy recovery and reduce energy loss in specific fields, but is not suitable for energy recovery and utilization of pressure when the vibrating screen of the rice combine harvester works.
Disclosure of Invention
Aiming at the technical problems, the invention provides a cleaning and drying device and a method, which realize the recovery and utilization of pressure energy of a cleaning device of a harvester during working by utilizing a piezoelectric principle, realize the recovery and utilization of energy under the condition of not influencing the normal working of the cleaning device, and have simple structure and strong reliability. The invention realizes the recovery and utilization of the reciprocating motion energy of the vibrating screen in the rice cleaning process, and the collected energy is used for drying the rice and charging the vehicle-mounted storage battery when the cleaning device cleans, thereby reducing the waste of unnecessary energy in the cleaning process and effectively improving the utilization and conversion efficiency of the energy.
The invention also provides a harvester comprising the cleaning and drying device.
The technical scheme of the invention is as follows: a cleaning and drying device comprises an energy conversion device, an electric energy collection and processing system, an electric energy flow direction control system, a storage battery, a vibrating screen heating device, a supporting device and a vibrating screen bearing rolling guide rail;
the supporting device is provided with a plurality of energy conversion devices, the upper parts of the energy conversion devices are connected with the bearing rolling guide rail of the vibrating screen, and the energy conversion devices are used for converting pressure energy generated by the reciprocating motion of the screen body of the vibrating screen into electric energy;
the electric energy collecting and processing system is respectively connected with the energy conversion device, the electric energy flow direction control system, the storage battery and the vibrating screen heating device and is used for collecting electric energy generated by the energy conversion device;
the electric energy flow direction control system is respectively connected with the storage battery and the vibrating screen heating device, and the storage battery is connected with the vibrating screen heating device; the electric energy flow direction control system is used for judging whether electric energy is used for charging the storage battery or for operating the vibrating screen heating device according to the SOC value of the storage battery and the actual working current of the vibrating screen heating device, and whether the storage battery is used for providing electric energy for the vibrating screen heating device or not.
In the above scheme, the energy conversion device comprises a pressed bullet, a cylindrical shell, a spring, a pressing sheet, a piezoelectric material and an installation bottom shell;
the utility model discloses a vibrating screen, including cylinder casing, pressurized warhead, installation drain pan, spring, pressurized warhead lower extreme and spring, pressurized warhead lower extreme is connected with the spring upper end, and pressurized warhead upper end is connected with shale shaker antifriction bearing rolling guide, and the bottom and the installation drain pan of cylinder casing are connected, and pressurized warhead and spring are vertical to be installed in the cylinder casing, and the pressurized warhead can reciprocate along cylinder shells inner wall, and the spring lower extreme is connected with the preforming, and the preforming can contact with piezoelectric material, and piezoelectric material installs in the drain pan, and the installation drain pan is installed on strutting arrangement.
Furthermore, a baffle ring is arranged at the bottom of the cylindrical shell and used for limiting the position of the pressing sheet.
In the above scheme, the electric energy collection processing system includes a confluence circuit, a rectification circuit, an electric energy storage device and a transformer;
the confluence circuit is sequentially connected with the rectifying circuit, the electric energy storage device and the transformer.
In the above scheme, the electric energy flow direction control system includes a control switch A, SOC monitoring device, a power resistor, a protection resistor, a single chip, a current monitoring device, a control switch B and a control switch C;
the control switch A, the power resistor and the storage battery are connected in series;
the protection resistor, the current monitoring device, the control switch B and the vibrating screen heating device are connected in series;
the storage battery, the control switch C and the vibrating screen heating device are connected in series;
the single chip microcomputer is respectively connected with the control switch A, SOC monitoring device, the current monitoring device, the control switch B and the control switch C.
In the above scheme, the vibrating screen heating device comprises a lead and a resistance wire;
the resistance wire is connected with the conducting wire, the resistance wire and the conducting wire are used for being installed on the transverse screen bars of the screen body of the vibrating screen, the conducting wire is fixed on the longitudinal screen bars of the screen body of the vibrating screen, and the resistance wire is suspended between the longitudinal screen bars through the conducting wire.
In the above scheme, the bearing rolling guide rail of the vibrating screen is provided with a plurality of through holes, and the upper end of the pressed warhead extends into the through holes.
A harvester comprises the cleaning and drying device.
A control method of a cleaning and drying plant according to the above, comprising the steps of:
the energy conversion device converts pressure energy generated by the reciprocating motion of the screen body of the vibrating screen into electric energy; the electric energy collection processing system collects the generated electric energy; the electric energy flow direction control system judges whether electric energy is used for charging the storage battery or heating the screen body of the vibrating screen by the vibrating screen heating device according to the SOC value of the storage battery and the actual working current of the vibrating screen heating device, and whether the storage battery is used for providing electric energy for the vibrating screen heating device or not.
In the above scheme, the judgment process of the electric energy flow direction control system specifically includes:
when the electric energy flow direction control system monitors that the SOC of the storage battery is more than 50 percent and the actual working current I of the vibrating screen heating device is more than or equal to 0.5I0In which I is0The electric energy flow direction control system uses the electric energy collected by the electric energy collecting and processing system to provide electric energy for the vibrating screen heating device for rated current when the vibrating screen heating device works normally;
when the electric energy flow direction control system monitors that the SOC of the storage battery is more than 50 percent and the actual working current I of the vibrating screen heating device is less than 0.5I0When the vibrating screen heating device is used, the electric energy flow direction control system controls the storage battery to provide electric energy for the vibrating screen heating device;
when the electric energy flow direction control system monitors that the SOC of the storage battery is less than 50 percent and the actual working current I of the vibrating screen heating device is more than or equal to 0.5I0When the vibrating screen heating device is used, the electric energy flow direction control system simultaneously uses the electric energy collected by the electric energy collecting and processing system for charging the storage battery and providing electric energy for the vibrating screen heating device;
when the electric energy flow direction control system monitors that the SOC of the storage battery is less than 50 percent and the actual working current I of the vibrating screen heating device is less than 0.5I0And when the electric energy flow direction control system is used for charging the storage battery, the electric energy collected by the electric energy collection and processing system is only used for charging the storage battery.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention realizes the recovery and the utilization of the pressure energy generated by the rolling bearing on the guide rail in the reciprocating motion process of the vibrating screen when the cleaning device of the combine harvester works, and improves the utilization and the conversion efficiency of the energy.
2. According to the invention, the pressure energy generated by the reciprocating motion of the screen body of the vibrating screen is converted into the electric energy through the energy conversion device, the electric energy generated by the energy conversion device is collected through the electric energy collecting and processing system and is used for drying the cleaning device, so that the separation efficiency of rice is improved, the energy consumption for drying the rice is reduced, the working efficiency of the whole machine is improved, and the technical problems that the moisture content of rice grains after threshing of the rice combine harvester is higher, the subsequent cleaning is difficult, and more energy is required to be consumed for independently drying the rice grains by using other energy are solved.
3. The invention realizes the effective utilization of the electric energy through the electric energy flow direction control system, and when the electric quantity of the storage battery is lower, the collected energy can be used for charging the storage battery, thereby improving the cruising ability of the storage battery, and improving the utilization efficiency of the energy and the working reliability of the whole machine. The problem of on-vehicle power supply on the rice combine can appear the condition that the electric quantity is not enough and lead to the unable start-up of machine after working for a long time, need pull down the on-vehicle battery and charge, if do not have stand-by power supply during busy farming, will waste the normal work of many time influence machine is solved.
4. According to the invention, the rice drying of the vibrating screen is realized by the vibrating screen heating device when the rice combine harvester works, the consumption of subsequent energy is reduced, the working reliability of the vibrating screen heating device is improved by the alternate working of the storage battery and the electric energy collecting and processing system, the flow direction of the energy is more reasonable and effective by the control of the electric energy flow direction control system, and the problem that the collected electric energy is possibly insufficient after being converted by the energy conversion device when the machine just starts to work is solved, so that the working of the drying device is influenced.
5. The vibrating screen of the rice combine harvester has the advantages of simple structure, lower cost, convenience in installation and high reliability, can effectively recycle the pressure energy generated when the vibrating screen of the rice combine harvester works, can be widely applied to recycling and utilizing the energy of the vibrating screen of the existing combine harvester in the market, and has good universality.
Drawings
FIG. 1 is a schematic view of an energy conversion device of an embodiment of the present invention mounted on a shaker;
FIG. 2 is a schematic view of an installation of an energy conversion device according to an embodiment of the present invention;
fig. 3 is a schematic view of the arrangement of the energy conversion device on the support device according to an embodiment of the invention;
fig. 4 is a front sectional view of an energy conversion device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a power harvesting processing system according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an electrical power flow control system according to an embodiment of the present invention;
FIG. 7 is a schematic layout of a vibrating screen heating apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic view of a shaker bearing guide track according to an embodiment of the present invention.
In the figure, 1, an energy conversion device, 101, a compression bullet, 102, a cylindrical shell, 103, a spring, 104, a pressing sheet, 105, a piezoelectric material, 106, a mounting shell, 2, an electric energy collecting and processing system, 201, a bus circuit, 202, a rectifying circuit, 203, an electric energy storage device, 204, a transformer, 3, an electric energy flow direction control system, 301, a control switch A, 302, a storage battery, 303, an SOC monitoring device, 304, a power resistor, 305, a protection resistor, 306, a single chip microcomputer, 307, a current detection device, 308, a control switch B, 309, a control switch C, 4, a vibrating screen heating device, 401, a lead, 402, a resistance wire, 5, a supporting device, 6, a vibrating screen bearing guide rail, 7, a vibrating screen rolling bearing, 8, a vibrating screen body, 801, a transverse screen bar and 802, a longitudinal screen bar.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Fig. 1 shows a preferred embodiment of the cleaning and drying device of the present invention, which comprises an energy conversion device 1, an electric energy collection and processing system 2, an electric energy flow direction control system 3, a storage battery 302, a vibrating screen heating device 4, a support device 5 and a vibrating screen bearing rolling guide 6.
As shown in fig. 2 and 3, a plurality of energy conversion devices 1 are arranged on the supporting device 5, the upper parts of the energy conversion devices 1 are connected with a bearing rolling guide rail 6 of the vibrating screen, and the energy conversion devices 1 are used for converting pressure energy generated by the reciprocating motion of a screen body 8 of the vibrating screen into electric energy; the electric energy collection and processing system 2 is respectively connected with the energy conversion device 1, the electric energy flow direction control system 3, the storage battery 302 and the vibrating screen heating device 4, and the electric energy collection and processing system 2 is used for collecting electric energy generated by the energy conversion device 1; the electric energy flow direction control system 3 is respectively connected with a storage battery 302 and a vibrating screen heating device 4, and the storage battery 302 is connected with the vibrating screen heating device 4; the electric energy flow direction control system 3 is configured to determine, according to the SOC value of the battery 302 and the actual working current of the vibrating screen heating device 4, whether to use the electric energy for charging the battery 302 or for operating the vibrating screen heating device 4, and determine whether to use the battery 302 to provide the electric energy for the vibrating screen heating device 4.
As shown in fig. 4, according to the present embodiment, preferably, the energy conversion apparatus 1 includes a compression bullet 101, a cylindrical case 102, a spring 103, a pressing piece 104, a piezoelectric material 105, and a mounting bottom case 106; the utility model discloses a vibrating screen roller bearing, including shale shaker antifriction bearing rolling guide 6, cylinder casing 102 is connected and wraps up in the pressurized warhead 101 and the spring 103 outside with installation drain pan 106, pressurized warhead 101 and spring 103 vertical installation in cylinder casing 102, pressurized warhead 101 can reciprocate along cylinder casing 102 inner wall, the spring 103 lower extreme is connected with preforming 104, preforming 104 and piezoelectric material 105 direct contact, and set up in installation drain pan 106 with piezoelectric material 105 together, installation drain pan 106 is installed on strutting arrangement 5. There is a stop ring at the bottom of the cylindrical housing 102 that limits the position of the wafer 104.
According to the embodiment, preferably, the bottom of the spring 103 is fixed at the center of the pressing sheet 104, the pressing sheet 104 is a circular sheet with a certain thickness, the bottom of the cylindrical shell 102 is welded on the surface of the mounting bottom shell 106, the top of the cylindrical shell 102 is welded on the bottom of the bearing rolling guide 6 of the vibrating screen, the pressed bullet 101 can move up and down along the inner wall of the cylindrical shell 102, and the pressing sheet 104 is fixed on the surface of the piezoelectric material 105 through glue.
As shown in fig. 5, the electric power collection processing system 2 includes a bus circuit 201, a rectifier circuit 202, an electric power storage device 203, and a transformer 204; the confluence circuit 201 is connected with the rectifying circuit 202 through a wire, and is used for realizing current integration processing, electric energy is transmitted to the electric energy storage device 203 through a wire to be stored, the electric energy storage device 203 is connected with the transformer 204, and voltage conversion is carried out on the electric energy, so that corresponding working requirements are met.
According to the present embodiment, preferably, the piezoelectric materials 105 are connected in parallel by a wire, and the collected electric energy is transmitted to the bus circuit 201 for energy integration by the wire.
As shown in fig. 6, according to the present embodiment, preferably, the electric energy flow direction control system 3 includes a control switch a301, an SOC monitoring device 303, a power resistor 304, a protection resistor 305, a single chip microcomputer 306, a current monitoring device 307, a control switch B308, and a control switch C309; the control switch A301, the power resistor 304 and the storage battery 302 are connected through conducting wires, the electric energy passing through the electric energy collecting and processing system 2 is connected with the storage battery 302 through the control switch A301 and the power resistor 304 to form a loop, the protection resistor 305, the current monitoring device 307, the control switch B308 and the vibrating screen heating device 4 are connected in series through conducting wires to form a loop, and the storage battery 302, the control switch C309 and the vibrating screen heating device 4 are connected in series through conducting wires to form a loop.
According to the present embodiment, preferably, the SOC monitoring device 303 is configured to measure the SOC value of the battery 302, the power resistor 304 is configured to limit the current in the loop to ensure the normal charging of the battery 302, the protection resistor 305 is configured to prevent the short circuit condition caused by the heating reflux from damaging the circuit, and the current monitoring device 307 is configured to measure the actual working current of the vibrating screen heating device 4.
The control switch A301, the SOC monitoring device 303, the current monitoring device 307, the control switch B308 and the control switch C309 are connected with the single chip microcomputer 306 through control lines, and the single chip microcomputer 306 controls the control switch A301, the control switch B308 and the control switch C309 according to the states of the SOC monitoring device 303 and the current monitoring device 307, so that the working states of all loops in the circuit are controlled.
As shown in fig. 7, according to the present embodiment, preferably, the vibrating screen heating device 4 includes a wire 401 and a resistance wire 402; the resistance wires 402 and the conducting wires 401 are arranged at intervals and connected into a straight line, and are uniformly distributed on the transverse screen bars 801 of the vibrating screen and connected with a power supply to form a loop, so that electric energy is converted into heat energy, and rice on the vibrating screen is heated and dried. The circuits formed by connecting the conducting wires 401 and the resistance wires 402 are connected in parallel. The wire 401 is fixed on the position of the longitudinal screen bars 802 of the vibrating screen body 8, and the resistance wire 402 is suspended between the longitudinal screen bars 802 through the wire 401, so that heat dissipation is facilitated, and the effect of rice separation is influenced by overheating of the screening device.
According to the embodiment, preferably, the supporting device 5 is a right-angle steel, one surface of which is used for installing the energy conversion device 1, and the other surface of which is welded on the machine frame and used for supporting the whole energy recovery device.
As shown in fig. 8, according to this embodiment, preferably, the rolling guide 6 of the bearing of the vibrating screen is a right-angle steel, one surface of which is welded on the frame, and the other surface of which is used for supporting the rolling of the bearing of the vibrating screen, and is drilled with a plurality of through holes, the upper end of the pressed warhead 101 extends into the through holes, the back surface of the through holes is an arc surface and is engaged with the pressed warhead 101 for extending the pressed warhead 101, so as to realize the up-and-down movement of the pressed warhead 101 when the bearing of the vibrating screen rolls. When the pressed warhead 101 is connected with the rolling guide rail 6 of the rolling bearing of the vibrating screen, the warhead part at the top of the pressed warhead is higher than the plane of the rolling guide rail 6 of the rolling bearing of the vibrating screen, the spring 103 is always in a compressed state and is used for rebounding the pressed warhead 101 to enable the spring to be restored to the original position after being pressed, and a retaining ring is arranged at the bottom of the cylindrical shell 102 to prevent the pressing sheet 104 from being separated from the installation bottom shell 106.
The energy conversion device 1 is arranged below a vibrating screen bearing rolling guide rail 6 of the rice combine harvester through a supporting device 5, and the vibrating screen bearing rolling guide rail 6 is used for supporting the rolling of a vibrating screen bearing and the installation of a pressed warhead 101 in the energy conversion device 1; the energy conversion device 1 is used for converting pressure energy generated by reciprocating motion of a rolling bearing on a guide rail when the vibrating screen works into electric energy, the electric energy collection and processing system 2 collects the generated electric energy through a confluence circuit 201, the electric energy is processed into electric energy which can be used for subsequent charging of a storage battery 302 and heating of the vibrating screen heating device 4 through a rectifying circuit 202 and a transformer 204, the electric energy flow direction control system 3 analyzes and processes data through a single chip microcomputer 306 according to states of state monitoring devices, closing of switches in the control circuit achieves the purpose of using the electric energy for charging of the storage battery 302 or working of the vibrating screen heating device 4, and the vibrating screen heating device 4 converts the collected electric energy into heat through a resistance wire 402 so as to achieve the purpose of heating rice during cleaning.
Example 2
A harvester comprising the cleaning and drying device of embodiment 1 has the advantages of embodiment 1, and therefore, the detailed description is omitted.
Example 3
A control method of a cleaning and drying plant according to embodiment 1, comprising the steps of:
the energy conversion device 1 converts pressure energy generated by the reciprocating motion of the vibrating screen body 8 into electric energy; the electric energy collection and processing system 2 collects the generated electric energy; the electric energy flow direction control system 3 judges whether the electric energy is used for charging the storage battery 302 or heating the vibrating screen body 8 by the vibrating screen heating device 4 according to the SOC value of the storage battery 302 and the actual working current of the vibrating screen heating device 4, and whether the storage battery 302 is used for providing the electric energy for the vibrating screen heating device 4.
The judgment process of the electric energy flow direction control system 3 is specifically as follows:
when the SOC monitoring device 303 of the electric energy flow direction control system 3 monitors that the SOC of the storage battery 302 is more than 50%, and the actual working current I detected by the current monitoring device 307 is more than or equal to 0.5I0When the vibrating screen heating device 4 is in use, the single chip microcomputer 306 turns on the control switch B308, and the electric energy collected by the electric energy collecting and processing system 2 provides electric energy for the vibrating screen heating device 4.
When the SOC monitoring device 303 of the electric energy flow direction control system 3 monitors that the SOC of the storage battery 302 is more than 50%, and the current I monitored by the current monitoring device 307 is less than 0.5I0When the single chip microcomputer 306 is turned on, the control switch A301 is turned off, the control switch B308 is turned off, and the storage battery 302 provides electric energy for the vibrating screen heating device 4.
When the SOC monitoring device 303 of the electric energy flow direction control system 3 monitors that the SOC of the storage battery 302 is less than 50%, and the actual working current I monitored by the current monitoring device 307 is more than or equal to 0.5I0When the electric energy collection and processing system 2 is used for charging the storage battery 302 and heating the vibrating screen heating device 4 at the same time, the signal is transmitted to the singlechip 306, the singlechip 306 closes the control switch A301, and the electric energy collection and processing system is used for heating the vibrating screen heating device 4,
when the SOC monitoring device 303 of the electric energy flow direction control system 3 monitors that the SOC of the storage battery 302 is less than 50%, and the actual working current I monitored by the current monitoring device 307 is less than 0.5I0Meanwhile, the power flow control system 3 uses the power collected by the power collection and processing system 2 only for charging the battery 302.
I0For the rated current of shale shaker heating device 4 during normal operating, this numerical value can be calculated according to specific heating heat quantity Q and heating resistance value R size, and specific calculation formula is Q ═ I0 2Rt, t is heating time.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. A control method of a cleaning and drying device is characterized in that the cleaning and drying device comprises an energy conversion device (1), an electric energy collection and processing system, an electric energy flow direction control system, a storage battery (302), a vibrating screen heating device (4), a supporting device (5) and a vibrating screen bearing rolling guide rail (6); the supporting device (5) is provided with a plurality of energy conversion devices (1), the upper parts of the energy conversion devices (1) are connected with a bearing rolling guide rail (6) of the vibrating screen, and the energy conversion devices (1) are used for converting pressure energy generated by the reciprocating motion of a screen body (8) of the vibrating screen into electric energy; the electric energy collecting and processing system is respectively connected with the energy conversion device (1), the electric energy flow direction control system, the storage battery (302) and the vibrating screen heating device (4), and is used for collecting electric energy generated by the energy conversion device (1); the electric energy flow direction control system is respectively connected with the storage battery (302) and the vibrating screen heating device (4), and the storage battery (302) is connected with the vibrating screen heating device (4); the electric energy flow direction control system is used for judging whether electric energy is used for charging the storage battery (302) or for working the vibrating screen heating device (4) according to the SOC value of the storage battery (302) and the actual working current of the vibrating screen heating device (4), and whether the storage battery (302) is used for providing electric energy for the vibrating screen heating device (4) or not;
the method comprises the following steps:
the energy conversion device (1) converts pressure energy generated by the reciprocating motion of the vibrating screen body (8) into electric energy; the electric energy collection processing system collects the generated electric energy; the electric energy flow direction control system judges whether electric energy is used for charging the storage battery (302) or heating the vibrating screen body (8) by the vibrating screen heating device (4) according to the SOC value of the storage battery (302) and the actual working current of the vibrating screen heating device (4), and whether the storage battery (302) is used for providing electric energy for the vibrating screen heating device (4) or not;
when the SOC (State of Charge) of the storage battery (302) is more than 50% monitored by the electric energy flow direction control system, and the actual working current I of the vibrating screen heating device (4) is not less than 0.5I 0In whichI 0The electric energy flow direction control system is used for supplying the electric energy collected by the electric energy collecting and processing system to the vibrating screen heating device (4) for rated current when the vibrating screen heating device (4) normally works;
when the power flow direction control system monitors that the SOC of the storage battery (302) is more than 50 percent, and the actual work of the vibrating screen heating device (4)Electric current I < 0.5I 0When the vibrating screen heating device is used, the electric energy flow direction control system controls the storage battery (302) to provide electric energy for the vibrating screen heating device (4);
when the SOC of the storage battery (302) is monitored by the electric energy flow direction control system to be less than 0%, and the actual working current I of the vibrating screen heating device (4) is not less than 0.5I 0When the vibrating screen heating device is used, the electric energy flow direction control system simultaneously uses the electric energy collected by the electric energy collecting and processing system for charging the storage battery (302) and providing electric energy for the vibrating screen heating device (4);
when the SOC of the storage battery (302) is monitored by the electric energy flow direction control system to be less than 50%, and the actual working current I of the vibrating screen heating device (4) is less than 0.5I 0Meanwhile, the electric energy flow direction control system only uses the electric energy collected by the electric energy collection processing system to charge the storage battery (302).
2. A cleaning and drying plant control method according to claim 1, characterized in that the energy conversion device (1) includes a pressed bullet (101), a cylindrical casing (102), a spring (103), a pressing sheet (104), a piezoelectric material (105) and a mounting bottom casing (106);
the lower end of the compression bullet (101) is connected with the upper end of the spring (103), the upper end of the compression bullet (101) is connected with the vibrating screen bearing rolling guide rail (6), the bottom of the cylindrical shell (102) is connected with the installation bottom shell (106), the compression bullet (101) and the spring (103) are vertically installed in the cylindrical shell (102), the compression bullet (101) can move up and down along the inner wall of the cylindrical shell (102), the lower end of the spring (103) is connected with the pressing sheet (104), the pressing sheet (104) can be in contact with the piezoelectric material (105), the piezoelectric material (105) is installed in the bottom shell (106), and the installation bottom shell (106) is installed on the supporting device (5).
3. A cleaning and drying plant control method according to claim 2, characterized in that a retainer ring is present at the bottom of the cylindrical casing (102) for limiting the position of the pressing sheet (104).
4. A cleaning drying plant control method according to claim 1, characterized in that the electric energy collection processing system includes a confluence circuit (201), a rectification circuit (202), an electric energy storage device (203) and a transformer (204);
the bus circuit (201) is sequentially connected with the rectifying circuit (202), the electric energy storage device (203) and the transformer (204).
5. A cleaning and drying plant control method according to claim 1, characterized in that the electric power flow direction control system includes a control switch a (301), an SOC monitoring device (303), a power resistor (304), a protection resistor (305), a single chip microcomputer (306), a current monitoring device (307), a control switch B (308), and a control switch C (309);
the control switch A (301), the power resistor (304) and the storage battery (302) are connected in series;
the protective resistor (305), the current monitoring device (307), the control switch B (308) and the vibrating screen heating device (4) are connected in series;
the storage battery (302), the control switch C (309) and the vibrating screen heating device (4) are connected in series;
the single chip microcomputer (306) is respectively connected with the control switch A (301), the SOC monitoring device (303), the current monitoring device (307), the control switch B (308) and the control switch C (309).
6. A cleaning and drying plant control method according to claim 1, characterized in that the vibrating screen heating device (4) includes a wire (401) and a resistance wire (402);
the resistance wire (402) is connected with the lead (401), the resistance wire (402) and the lead (401) are used for being installed on a transverse screen bar (801) of the screen body (8) of the vibrating screen, the lead (401) is fixed on a longitudinal screen bar (802) of the screen body (8) of the vibrating screen, and the resistance wire (402) is suspended between the longitudinal screen bars (802) through the lead (401).
7. A cleaning and drying plant control method according to claim 2, characterized in that the vibrating screen bearing rolling guide (6) is provided with a plurality of through holes, and the upper end of the pressure warhead (101) is inserted into the through holes.
8. A harvester including a cleaning and drying device, characterized in that the cleaning and drying device is controlled by the control method of the cleaning and drying device according to any one of claims 1 to 7.
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