CN108514907B - Non-contact measurement method and structure for rubber roller of rice huller and rice huller - Google Patents
Non-contact measurement method and structure for rubber roller of rice huller and rice huller Download PDFInfo
- Publication number
- CN108514907B CN108514907B CN201810646211.0A CN201810646211A CN108514907B CN 108514907 B CN108514907 B CN 108514907B CN 201810646211 A CN201810646211 A CN 201810646211A CN 108514907 B CN108514907 B CN 108514907B
- Authority
- CN
- China
- Prior art keywords
- fixed
- movable
- roller
- electrode
- polar plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
- B02B3/045—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers cooperating rollers
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The application provides a non-contact measurement method of rubber rollers of rice hullers, which comprises the steps of calculating a measurement capacitance, wherein a PLC (programmable logic controller) obtains a measurement current of a current loop formed by a unit fixed polar plate and a corresponding unit movable polar plate, and calculates the capacitance between the unit fixed polar plate and the corresponding unit movable polar plate according to the measurement current to obtain the measurement capacitance; and calculating the thickness of the rubber layer, wherein the PLC calculates the thickness of the rubber layer according to the air dielectric constant containing rice husk dust, the measured capacitance and the distance between the unit fixed polar plate and the corresponding unit movable polar plate, which are monitored by the air capacitance monitor. The application also relates to a rubber roller non-contact measuring structure and a rice huller. The application ensures that the two rubber roller shafts are parallel, realizes the optimal distance and the optimal speed difference of the two rubber rollers, has small measurement error and high accuracy, and effectively improves the shelling rate and yield.
Description
Technical Field
The application relates to the technical field of agricultural rice hullers, in particular to a non-contact measurement method and structure of a rubber roller of a rice huller and the rice huller.
Background
The rice huller is an important machine in the modern grain and oil processing production environment and is mainly used in the grain shelling production link. The existing rice huller cannot measure the rubber roller on line in real time, the working time of the rice huller in the actual production process is long, the rubber roller grinding speed of the rice huller is very high, the rubber roller needs to be replaced within three days generally, meanwhile, the speed is changed at regular intervals, and the speed difference of the rolling line, the line speed and the maintenance are ensured to be unchanged. However, due to the timing gear shifting and the fact that the gear speed cannot be adjusted steplessly, the optimal speed can only be approximately guaranteed at present. The existing rice huller has the following defects: at present, the new generation rice huller relies on two synchronous hydraulic cylinders to move to drive one rubber roller to move close to the other rubber roller, but the two rubber roller shafts cannot be ensured to be parallel, and the moving distance error is large and inaccurate; the fast roller makes the speed of the slow roller become high through the action of rice grains, and the speed of the fast roller becomes low, and the instantaneous speed of the two rollers fluctuates, which has serious influence on the shelling rate and yield; the two rollers are worn during running, and the radius wear degree of the two rollers is different, so that the relative linear speed of the surfaces of the two rollers is changed under the condition that the rotating speed is unchanged. Therefore, a new rice huller capable of automatically measuring the abrasion amount of the rubber roll and changing the line speed in real time is needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the application aims to provide a non-contact type measuring method for rubber rollers of a rice huller and a non-contact type rubber roller measuring rice huller, and the diameters of two rubber rollers are monitored in real time, so that the constant pressure adjustment and the speed adjustment of the two rubber rollers are carried out, and the optimal distance and the optimal speed difference of the two rubber rollers are realized.
The application provides a non-contact measurement method for rubber rollers of a rice huller, which comprises the following steps:
calculating a measured capacitance, wherein a PLC (programmable logic controller) obtains a measured current of a current loop formed by a unit fixed polar plate and a corresponding unit movable polar plate, and calculates the capacitance between the unit fixed polar plate and the corresponding unit movable polar plate according to the measured current to obtain the measured capacitance;
calculating the thickness of the rubber layer, wherein the PLC calculates the thickness of the rubber layer according to the air dielectric constant containing rice husk dust, the measured capacitance and the distance between the unit fixed polar plate and the corresponding unit movable polar plate, which are monitored by the air capacitance monitor;
and the PLC calculates the radius of the rubber layer through the thickness of the rubber layer, and performs distance compensation on the rubber roller according to the radius of the rubber layer.
Further, the method further comprises the step of adjusting the rotating speed, wherein the PLC calculates the radius of the rubber layer through the thickness of the rubber layer, calculates the current linear speed according to the radius of the rubber layer and the current rotating speed, and adjusts the rotating speed of the rubber roller driving motor according to the current linear speed; the method also comprises the step of constant pressure adjustment, wherein the PLC adjusts the pressure of the pneumatic constant pressure mechanism according to the radius of the rubber layer.
Further, the step of adjusting the rotation speed further comprises the step of calculating the target rotation speed of the rubber roller driving motor by the PLC through the number of movable polar plate electrodes uniformly distributed along the circumferential direction of the rubber roller and the contact time threshold between the unit movable polar plate and the tile electrode, and adjusting the rotation speed of the rubber roller driving motor according to the target rotation speed.
Further, the process for calculating the dielectric constant of the air containing the rice husk dust comprises the following steps: and measuring by the air capacitance monitor to obtain an air capacitance, calculating the relative dielectric constant of the air containing the rice husk dust according to the air capacitance and the vacuum capacitance, and calculating the dielectric constant of the air containing the rice husk dust according to the relative dielectric constant and the vacuum dielectric constant.
The utility model provides a rice huller rubber roll non-contact measurement structure, including measuring fixed polar plate, movable polar plate electrode, air capacitance monitor, stator electrode, PLC controller, movable polar plate electrode is arranged in between the wheel hub and the rubber layer of rubber roll, movable polar plate electrode with wheel hub fixed connection, measure fixed polar plate with wheel hub is relative, measure fixed polar plate with movable polar plate electrode electricity is connected, air capacitance monitor with measure fixed polar plate inboard is connected, stator electrode with movable polar plate electrode contact electricity is connected, stator electrode with measure fixed polar plate respectively with alternating current power supply both ends are connected, measure fixed polar plate with movable polar plate electrode forms the current loop, establish ties rectification measurement circuit in the current loop, the PLC controller with rectification measurement circuit electricity is connected.
Further, the measuring fixed polar plate comprises a fixed polar plate supporting frame, a fixed polar plate measuring bus and a plurality of unit fixed polar plates, the measuring fixed polar plate is fixedly connected with the integral frame through the fixed polar plate supporting frame, the fixed polar plate measuring bus is arranged on the outer surface of the measuring fixed polar plate, the unit fixed polar plates are sequentially connected in series and arranged on the inner surface of the measuring fixed polar plate, the unit fixed polar plate is opposite to the hub, the fixed polar plate measuring bus is electrically connected with the unit fixed polar plate, the unit fixed polar plate is electrically connected with the movable polar plate electrode, and the axis of the measuring fixed polar plate is parallel to the axis of the hub.
Further, a plurality of movable pole plate electrodes are distributed at intervals along the circumference of the hub.
Further, the movable electrode plate electrode comprises a plurality of unit movable electrode plates, the unit movable electrode plates are sequentially connected in series and axially distributed along the hub, and the unit movable electrode plates are in one-to-one correspondence with the unit fixed electrode plates.
Further, the unit movable electrode plates and the unit fixed electrode plates are composed of flexible insulating substrates and aluminum foil electrodes, the flexible insulating substrates enclose a cavity with an opening on the top surface, the aluminum foil electrodes are arranged on the top surface of the cavity, an electrode plate serial circuit is arranged on one side of each aluminum foil electrode, and the unit movable electrode plates or the unit fixed electrode plates are sequentially connected in series through the electrode plate serial circuit.
Further, the measuring fixed pole plate and the movable pole plate electrode further comprise an electric field shielding grid mesh, and the electric field shielding grid mesh wraps the side face of the unit movable pole plate and the side face of the unit fixed pole plate.
Further, the electric field shielding grid mesh wraps the bottom surface of the unit movable electrode plate and the bottom surface of the unit fixed electrode plate.
Further, the stator electrode comprises a tile electrode, an electrode support frame and a conductive bus, the stator electrode is fixedly connected with the integral frame through the electrode support frame, the tile electrode is arranged between the movable electrode plate electrode and the hub, the tile electrode is fixed at the tail end of the electrode support frame through a connecting piece and is in contact with the movable electrode plate of the unit, the conductive bus is fixed on the electrode support frame, and an alternating current power supply is electrically connected with the tile electrode through the conductive bus.
A rice huller comprises a fixed roller mechanism and a movable roller mechanism; the fixed roll mechanism and the movable roll mechanism comprise the non-contact measuring structure of the rubber roll of the rice huller, the fixed roll mechanism further comprises a fixed roll driving motor, a fixed roll hub, a fixed roll rotating shaft and a fixed roll rubber layer, and the movable roll mechanism further comprises a movable roll driving motor, a movable roll hub, a movable roll rotating shaft and a movable roll rubber layer; the non-contact measuring structure of the rubber roller of the rice huller is used for monitoring the diameter of the fixed roller rubber layer and the diameter of the movable roller rubber layer, the fixed roller rotating shaft is fixedly connected with the fixed roller hub, the fixed roller rotating shaft is connected with the fixed roller driving motor, and the fixed roller rubber layer is sleeved on the outer surface of the fixed roller hub; the movable roller rotating shaft is fixedly connected with the movable roller hub, the movable roller rotating shaft is connected with the movable roller driving motor, and the movable roller rubber layer is sleeved on the outer surface of the movable roller hub.
Further, the device further comprises a pneumatic constant pressure mechanism and a pneumatic swing arm, wherein the measuring constant pole plate comprises a movable roller measuring constant pole plate, the movable roller measuring constant pole plate is opposite to the fixed roller hub, the stator electrode comprises a movable roller stator electrode, the movable roller stator electrode is fixedly connected with the surface of the movable roller hub, the movable roller measuring constant pole plate and the movable roller stator electrode are respectively connected with the pneumatic swing arm, the pneumatic constant pressure mechanism is fixedly connected with the integral frame, a rotating shaft at the bottom end of the pneumatic swing arm is rotationally connected with the integral frame, a middle bearing of the pneumatic swing arm is matched with the rotating shaft of the movable roller, a rotating shaft connecting block at the top end of the pneumatic swing arm is rotationally connected with a rotating shaft at the top end of the pneumatic swing arm, and a rotating shaft connecting block at the top end of the pneumatic swing arm is fixedly connected with a piston rod of the pneumatic constant pressure mechanism.
Compared with the prior art, the application has the beneficial effects that:
the application provides a non-contact measurement method for rubber rollers of a rice huller, which comprises the following steps: calculating a measured capacitance, wherein the PLC controller obtains a measured current of a current loop formed by the unit fixed polar plate and the corresponding unit movable polar plate, and calculates the capacitance between the unit fixed polar plate and the corresponding unit movable polar plate by the measured current to obtain the measured capacitance; calculating the thickness of the rubber layer, wherein the PLC calculates the thickness of the rubber layer according to the air dielectric constant containing rice husk dust, the measured capacitance and the distance between the unit fixed polar plate and the corresponding unit movable polar plate, which are monitored by the air capacitance monitor; and (3) distance compensation, wherein the PLC calculates the radius of the rubber layer through the thickness of the rubber layer, and performs distance compensation on the rubber roller according to the radius of the rubber layer. The application also relates to a non-contact measuring structure of the rubber roller of the rice huller and the rice huller. According to the application, the diameters of the two rubber rollers are monitored in real time, and the distance compensation and the speed adjustment of the two rubber rollers are carried out, so that the optimal distance and the optimal speed difference of the two rubber rollers are realized; the electric field distribution of the polar plate can be effectively prevented from being influenced by the electric field interference of the electrodes and the rubber roller, and the measurement accuracy is high; can guarantee that two rubber roller axles are parallel, and the displacement error is little, and the accuracy is high, avoids two roller instantaneous speed fluctuation through regulating the speed, improves shelling rate and output.
The foregoing description is only an overview of the present application, and is intended to provide a better understanding of the present application, as it is embodied in the following description, with reference to the preferred embodiments of the present application and the accompanying drawings. Specific embodiments of the present application are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic front view illustrating an overall structure of a rice huller of the present application;
fig. 2 is a schematic side view illustrating the overall structure of the rice huller of the present application;
fig. 3 is a schematic top view illustrating the overall structure of the rice huller of the present application;
fig. 4 is a schematic structural view of a moving (fixed) roll mechanism of the rice huller of the present application;
fig. 5 is a schematic construction view of the inside of a moving (fixed) roll mechanism of the rice huller of the present application;
fig. 6 is a partial schematic view of a moving (fixed) roll mechanism of the rice huller according to the present application;
fig. 7 is a partial schematic view of a moving (fixed) roll mechanism of the rice huller according to the present application;
FIG. 8 is a circuit diagram of a single pair of capacitive plates according to the present application;
fig. 9 is a schematic diagram illustrating a measurement principle of the rice huller of the present application;
fig. 10 is a schematic structural view of a fixed (movable) roll unit movable plate of the rice huller of the present application;
fig. 11 is a schematic structural diagram of a fixed (movable) roll movable plate electrode and a fixed (movable) roll measuring fixed plate of the rice huller of the present application;
fig. 12 is a second schematic structural diagram of a fixed (movable) roll movable plate electrode and a fixed (movable) roll measuring fixed plate of the rice huller of the present application;
fig. 13 is a flowchart illustrating a non-contact measuring method of a rubber roll of a rice huller according to the present application.
In the figure: fixed roller mechanism 1, movable roller mechanism 1-1, fixed roller measuring fixed polar plate 1-1, movable roller measuring fixed polar plate 2-1, fixed roller fixed polar plate support frame 1-1-1, movable roller fixed polar plate support frame 2-1-1, fixed roller fixed polar plate bus 1-1-2, movable roller fixed polar plate measuring bus 2-1-2, fixed roller unit fixed polar plate 1-1-3, movable roller unit fixed polar plate 2-1-3, fixed roller driving motor 1-2, movable roller driving motor 2-2, fixed roller air capacitance monitor 1-3, movable roller air capacitance monitor 2-3, fixed roller stator electrode 1-4, movable roller stator electrode 2-4, fixed roller tile electrode 1-4-1 2-4-1 parts of movable roller tile electrode, 1-4-2 parts of fixed roller electrode, 2-4-2 parts of movable roller electrode, 1-4-3 parts of fixed roller conductive bus, 2-4-3 parts of movable roller conductive bus, 1-5 parts of fixed roller movable polar plate hub, 2-5 parts of movable roller movable polar plate hub, 1-5-1 parts of fixed roller movable polar plate electrode, 2-5-2 parts of fixed roller hub, 2-5-2 parts of movable roller hub, 1-5-3 parts of fixed roller unit movable polar plate, 2-5-3 parts of movable roller unit movable polar plate, 1-5-3-1 parts of aluminum foil electrode, 1-5-3-2 parts of flexible insulating substrate, 1-5-3-3 parts of polar plate serial circuit, 1-5-3-3 parts of electric field shielding grid net and 1-5-3-4 parts of electric field shielding grid net, the device comprises a fixed roller rotating shaft 1-6, a movable roller rotating shaft 2-6, a fixed roller rubber layer 1-7, a movable roller rubber layer 2-7, a pneumatic fixed pressure mechanism 3, a pneumatic swing arm 4 and roller plate gap air 5.
Detailed Description
The present application will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
In the embodiment, as shown in fig. 1-4, the measuring fixed pole plate comprises a fixed roller measuring fixed pole plate 1-1 and a movable roller measuring fixed pole plate 2-1, the movable pole plate electrode comprises a fixed roller movable pole plate electrode 1-5-1 and a movable roller movable pole plate electrode 2-5-1, the air capacitance monitor comprises a fixed roller air capacitance monitor 1-3 and a movable roller air capacitance monitor 2-3, the stator electrode comprises a fixed roller stator electrode 1-4 and a movable roller stator electrode 2-4, the fixed roller measuring fixed pole plate 1-1 is fixedly connected with an integral frame (not shown in the figure), the fixed roller measuring fixed pole plate 1-1 is opposite to a fixed roller hub 1-5-2, the fixed roller air capacitance monitor 1-3 is connected with the inner side of the fixed roller measuring fixed pole plate 1-1, the dielectric constant of the gap air 5 of the monitoring roller plate electrode is fixedly connected with the integral frame, the fixed roller stator electrode 1-4 is fixedly connected with the fixed roller air capacitance monitor 1-5, the fixed roller fixed pole plate electrode 1-5 is in contact with the fixed roller hub 1-5, the fixed roller measuring fixed pole plate 1-5 is respectively connected with the fixed roller hub 1-5, the fixed pole plate 1-5 is in contact with the fixed roller 1-5, the fixed pole plate electrode is respectively, the fixed roller measuring fixed pole plate 1-1 is in contact with the fixed electrode 1-5 is connected with the fixed electrode 1-5 and the fixed electrode is in contact with the fixed electrode 1-5, the fixed roller measuring fixed polar plate 1-1 and the fixed roller moving polar plate hub 1-5 form a current loop; the fixed polar plate 2-1 of the movable roller measurement is fixedly connected with an integral frame (not shown in the figure), the fixed polar plate 2-1 of the movable roller measurement is opposite to a movable roller hub 2-5-2, a movable roller air capacitance monitor 2-3 is fixedly connected with the inner side of the fixed polar plate 2-1 of the movable roller measurement, the dielectric constant of air 5 in a gap between the roller plates is monitored, a movable roller stator electrode 2-4 is fixedly connected with the integral frame and is in contact electrical connection with the movable polar plate electrode 2-5-1 of the movable roller, the fixed polar plate 2-1 of the movable roller measurement is electrically connected with the movable polar plate electrode 2-5-1 of the movable roller, the movable polar plate electrode 2-5-1 of the movable roller is arranged between the rubber roller hub 2-5-2 and a movable roller rubber layer 2-7, the movable polar plate electrode 2-5-1 of the movable roller is fixedly connected with the movable roller hub 2-5-2, the movable roller stator electrode 2-4 and the fixed polar plate 2-1 of the movable roller measurement are respectively connected with two ends of an alternating current power supply, and the fixed polar plate 2-1 of the movable roller measurement forms a current loop with the movable polar plate hub 2-5; and the current loop is connected with a rectification measuring circuit in series, and the PLC is electrically connected with the rectification measuring circuit.
In one embodiment, preferably, the measuring fixed polar plate comprises a fixed polar plate supporting frame, a fixed polar plate measuring bus and a plurality of unit fixed polar plates, as shown in fig. 4-5, the fixed roller measuring fixed polar plate 1-1 is fixedly connected with the integral frame through the fixed roller fixed polar plate supporting frame 1-1, the fixed roller fixed polar plate measuring bus 1-1-2 is arranged on the outer surface of the fixed roller measuring fixed polar plate 1-1, the plurality of unit fixed polar plates 1-1-3 are sequentially connected in series and are arranged on the inner surface of the fixed roller measuring fixed polar plate 1-1, the fixed roller fixed polar plate measuring bus 1-1-2 is electrically connected with the unit fixed polar plate 1-1-3, the inner surface of the fixed roller measuring fixed polar plate 1-1 is opposite to the fixed roller hub 1-5-2, and the fixed roller measuring fixed polar plate 1-1 is parallel to the axis of the fixed roller moving polar plate hub 1-5; the movable roller measuring fixed polar plate 2-1 is fixedly connected with the integral frame through a movable roller fixed polar plate supporting frame 2-1, a movable roller fixed polar plate measuring bus 2-1-2 is arranged on the outer surface of the movable roller measuring fixed polar plate 2-1, a plurality of unit fixed polar plates 2-1-3 are sequentially connected in series and are arranged on the inner surface of the movable roller measuring fixed polar plate 2-1, the movable roller fixed polar plate measuring bus 2-1-2 is electrically connected with the unit fixed polar plate 2-1-3, the inner surface of the movable roller measuring fixed polar plate 2-1 is opposite to a movable roller movable polar plate hub 2-5, and the movable roller measuring fixed polar plate 2-1 is parallel to the axis of the movable roller movable polar plate hub 2-5.
In an embodiment, preferably, the fixed-roller movable electrode plates 1-5-1 are circumferentially and alternately distributed along the hub 1-5-2, and the movable-roller movable electrode plates 2-5-1 are circumferentially and alternately distributed along the hub 2-5-2, generally, the abrasion of each part of the side surface of the rubber roller in the circumferential direction is basically the same, and in particular design, only one fixed-roller movable electrode plate 1-5-1 or movable-roller movable electrode plate 2-5-1 can be arranged for reducing the cost.
In one embodiment, as shown in fig. 5 and 7, preferably, the fixed-roller movable electrode plate electrode 1-5-1 comprises a plurality of fixed-roller unit movable electrode plates 1-5-3, and the plurality of fixed-roller unit movable electrode plates 1-5-3 are sequentially connected in series and axially distributed along the hub, and the fixed-roller unit movable electrode plates 1-5-3 are in one-to-one correspondence with the unit fixed electrode plates 1-1-3, so that mutual alignment in the axial direction of the rubber roller is strictly ensured; the movable roller movable electrode plate electrode 2-5-1 comprises a plurality of movable roller unit movable electrode plates 2-5-3, the plurality of movable roller unit movable electrode plates 2-5-3 are sequentially connected in series and are distributed along the axial direction of the wheel hub, the movable roller unit movable electrode plates 2-5-3 are in one-to-one correspondence with the unit fixed electrode plates 1-1-3, the mutual alignment in the axial direction of the rubber roller is strictly ensured, the abrasion of the rubber layers along the axial direction is uneven, when the total length of each fixed (movable) roller movable electrode plate electrode 1-5-1 (1-5-2) is unchanged, the more the number of the divided unit movable electrode plates is, the more uniform the electric charge distribution is, the axial length of the current rubber roller is 250-300mm, and the axial width of each fixed (movable) roller unit movable electrode plate 1-5-3 (2-5-3) is 18mm along the axial direction of the rubber roller, so that the number of the fixed (movable) roller unit movable electrode plates 1-5-3 (2-5-3) is set to be about 15.
As shown in FIG. 10-FIG. 11, the fixed roller unit movable electrode plate 1-5-3, the movable roller unit movable electrode plate 2-5-3, the fixed roller measuring fixed electrode plate 1-1 and the movable roller measuring fixed electrode plate 2-1 are composed of a flexible insulating substrate 1-5-3-2 and an aluminum foil electrode 1-5-3-1, in this embodiment, the thickness of the flexible insulating substrate 1-5-3-2 is 5mm, the flexible insulating substrate 1-5-3-2 adopts a high polymer material to insulate the aluminum foil electrode 1-5-3-1 from a rubber roller metal hub 1-5-2 (2-5-2), the thickness of the aluminum foil electrode 1-5-3-1 is 1mm, the flexible insulating substrate 1-5-3-2 encloses a cavity with an open top surface, the aluminum foil electrode 1-5-3-1 is arranged on the top surface of the cavity, one side of the aluminum foil electrode 1-5-3-1 is provided with a pole plate serial circuit 1-5-3-3, a fixed roller unit movable pole plate 1-5-3, a movable roller unit movable pole plate 2-5-3, a fixed roller measuring fixed pole plate 1-1 and a movable roller measuring fixed pole plate 2-1 are respectively connected in series in sequence through the pole plate serial circuit 1-5-3-3, the aluminum foil electrode 1-5-3-1 of the fixed roller unit movable pole plate 1-5-3 is opposite to the aluminum foil electrode 1-5-3-1 of the fixed roller measuring fixed pole plate 1-1, the aluminum foil electrode 1-5-3-1 of the movable roller unit movable electrode plate 2-5-3 is opposite to the aluminum foil electrode 1-5-3-1 of the movable roller measuring fixed electrode plate 2-1 to form a capacitor, in this embodiment, the distance d between the adjacent fixed roller unit movable electrode plates 1-5-3 or between the adjacent movable roller unit movable electrode plates 2-5-3 is about 2mm, as shown in fig. 12, preferably, the fixed roller movable electrode plate electrode 1-5-1, the movable roller movable electrode plate electrode 2-5-1, the fixed roller measuring fixed electrode plate 1-1 and the movable roller measuring fixed electrode plate 2-1 also comprise an electric field shielding grid 1-5-3-4, and the electric field shielding grid 1-5-3-4 wraps the side surface of the unit movable electrode plate and the side surface of the unit fixed electrode plate to prevent electric field interference between the electrodes from affecting electric field distribution of the mutual electrode plates and measuring accuracy. Preferably, the electric field shielding grid mesh 1-5-3-4 wraps the fixed roller movable electrode plate electrode 1-5-1, the movable roller movable electrode plate electrode 2-5-1, the fixed roller measuring fixed electrode plate 1-1 and the bottom surface of the movable roller measuring fixed electrode plate 2-1, so that the influence of the electric field interference of the rubber roller on the electric field distribution of the electrode plate and the measurement accuracy are prevented.
As shown in fig. 6-7, preferably, the fixed roller stator electrode 1-4 comprises a fixed roller tile electrode 1-4-1, an electrode support frame 1-4-2 and a conductive bus 1-4-3, the fixed roller stator electrode 1-4 is fixedly connected with the integral frame through the electrode support frame 1-4-2, the fixed roller tile electrode 1-4-1 is arranged between the fixed roller movable electrode plate electrode 1-5-1 and a hub, the fixed roller tile electrode 1-4-1 is fixed at the tail end of the electrode support frame 1-4-2 through a connecting piece, and when the hub 1-5-2 rotates to a proper position, the fixed roller tile electrode 1-4-1 is contacted with the fixed roller movable electrode plate electrode 1-5-1 to realize conduction, the conductive bus 1-4-3 is fixed on the electrode support frame 1-4-2, and an alternating current power supply is electrically connected with the fixed roller tile electrode 1-4-1 through the conductive bus 1-3; the movable roller stator electrode 2-4 comprises a movable roller tile electrode 2-4-1, an electrode support frame 2-4-2 and a conductive bus 2-4-3, wherein the movable roller stator electrode 2-4 is fixedly connected with the integral frame through the electrode support frame 2-4-2, the movable roller tile electrode 2-4-1 is arranged between the movable roller movable electrode plate electrode 2-5-1 and a hub, the movable roller tile electrode 2-4-1 is fixed at the tail end of the electrode support frame 2-4-2 through a connecting piece, and when the hub 2-5-2 rotates to a proper position, the fixed roller tile electrode 2-4-1 is in contact with the movable roller movable electrode plate electrode 2-5-1 to realize conduction, the conductive bus 2-4-3 is fixed on the electrode support frame 2-4-2, and an alternating current power supply is electrically connected with the movable roller tile electrode 2-4-1 through the conductive bus 2-4-3.
The rice huller, as shown in fig. 1-4, comprises a fixed roll mechanism 1, a movable roll mechanism 2, a pneumatic fixed pressure mechanism 3 and a pneumatic swing arm 4; the fixed roll mechanism 1 and the movable roll mechanism 2 both comprise the rubber roll non-contact measuring structure of the rice huller, the fixed roll mechanism 1 also comprises a fixed roll driving motor 1-2, a fixed roll hub 1-5-2, a fixed roll rotating shaft 1-6 and a fixed roll rubber layer 1-7, and the movable roll mechanism 2 also comprises a movable roll driving motor 2-2, a movable roll hub 2-5-2, a movable roll rotating shaft 2-6 and a movable roll rubber layer 2-7; the non-contact measuring structure of the rubber roller of the rice huller is used for monitoring the diameter of a rubber layer 1-7 of a measuring roller and the diameter of a rubber layer 2-7 of a movable roller, a fixed roller rotating shaft 1-6 is matched with a bearing on an integral frame, the fixed roller rotating shaft 1-6 is fixedly connected with a fixed roller movable polar plate hub 1-5, the fixed roller movable polar plate hub 1-5 comprises a fixed roller movable polar plate electrode 1-5-1 and a hub 1-5-2, the fixed roller rotating shaft 1-6 is fixedly connected with the hub 1-5-2 through bolts and nuts, the fixed roller rotating shaft 1-6 is connected with a fixed roller driving motor 1-2 through a coupler, the fixed roller driving motor 1-2 drives the fixed roller movable polar plate hub 1-5 to rotate, a fixed roller measuring fixed polar plate 1-1 is fixedly connected with the integral frame, the fixed roller measuring fixed polar plate 1-1 is opposite to the fixed roller movable polar plate hub 1-5, the fixed roller air capacitance monitor 1-3 is connected with the inner side of the fixed roller measuring fixed polar plate 1-1, the dielectric constant of the gap air 5 of the roller plate is monitored, the fixed roller stator electrode 1-4 is fixedly connected with the integral frame and is in contact electrical connection with the surface of the fixed roller movable polar plate hub 1-5, the fixed roller measuring fixed polar plate 1-1 is electrically connected with the fixed roller movable polar plate hub 1-5, the fixed roller rubber layer 1-7 is sleeved on the outer surface of the fixed roller movable polar plate hub 1-5, the fixed roller stator electrode 1-4 and the fixed roller measuring fixed polar plate 1-1 are respectively connected with two ends of an alternating current power supply, and the fixed roller measuring fixed polar plate 1-1 and the fixed roller movable polar plate hub 1-5 form a current loop; the movable roller rotating shaft 2-6 is matched with a bearing on the integral frame, the movable roller rotating shaft 2-6 is fixedly connected with a movable roller movable electrode plate hub 2-5, the movable roller movable electrode plate hub 2-5 comprises a movable roller movable electrode plate electrode 2-5-1 and a hub 2-5-2, the movable roller rotating shaft 2-6 is fixedly connected with the hub 2-5-2 through bolts and nuts, the movable roller rotating shaft 2-6 is connected with a movable roller driving motor 2-2 through a coupler, the movable roller driving motor 2-2 drives the movable roller movable electrode plate hub 2-5 to rotate, a movable roller measuring movable electrode plate is fixedly connected with the integral frame, a movable roller measuring fixed electrode plate 2-1 is opposite to the movable roller movable electrode plate hub 2-5, a movable roller air capacitance monitor 2-3 is connected with the inner side of the movable roller measuring fixed electrode plate 2-1 to monitor the dielectric constant of gap air 5 of the roller plate, the movable roller stator electrode 2-4 is fixedly connected with the integral frame and is in contact electrical connection with the surface of the movable roller movable electrode plate hub 2-5, the movable roller measuring fixed electrode plate 2-1 is in electrical connection with the movable roller movable electrode plate hub 2-5, the movable roller rubber layer 2-7 is sleeved on the outer surface of the movable roller movable electrode plate hub 2-5, the movable roller measuring fixed electrode plate 2-1 is connected with the pneumatic swing arm 4, the mutual space position of the movable roller measuring fixed electrode plate 2-1 and the movable roller rotating shaft 2-6 is kept unchanged when the movable roller mechanism 2 swings, namely the distance between the electrode plates is kept unchanged, the movable roller stator electrode 2-4 is connected with the pneumatic swing arm 4, the movable roller stator electrode 2-4 and the movable roller movable electrode plate electrode 2-5-1 are ensured to be in normal contact conduction when the movable roller mechanism 2 swings, the movable roller stator electrode 2-4 and the movable roller measuring fixed polar plate 2-1 are respectively connected with two ends of an alternating current power supply, the PLC controller controls the alternating current power supply to be started, the movable roller measuring fixed polar plate 2-1 and a movable roller movable polar plate hub 2-5 form a current loop, a rectification measuring circuit is connected in series in the current loop, and the PLC controller is connected with the rectification measuring circuit; the pneumatic constant pressure mechanism 3 is fixedly connected with the integral frame, in this embodiment, the pneumatic constant pressure mechanism 3 is specifically a constant pressure pneumatic cylinder, the bottom end rotating shaft of the pneumatic swing arm 4 is rotationally connected with the integral frame, the pneumatic swing arm 4 can freely rotate relative to the integral frame, the middle bearing of the pneumatic swing arm 4 is matched with the movable roller rotating shafts 2-6, the top end rotating shaft connecting block of the pneumatic swing arm 4 is rotationally connected with the top end rotating shaft of the pneumatic swing arm 4, the top end rotating shaft connecting block can freely rotate relative to the top end rotating shaft of the pneumatic swing arm 4, and the top end rotating shaft connecting block of the pneumatic swing arm 4 is fixedly connected with the piston rod of the pneumatic constant pressure mechanism 3.
The non-contact measurement method of the rubber roll of the rice huller, as shown in fig. 13, comprises the following steps:
in one embodiment, an operator changes old rubber rolls, sets a measurement time interval T on a control panel, starts to start a rice huller to work, and after the measurement time interval T is reached, a PLC controller controls an ac power supply to be turned on, and a related circuit connection diagram is shown in fig. 8, because each unit fixed polar plate 1-1-3 (2-1-3) on the fixed polar plate 1-1 (2-1) is respectively connected with two ends of the ac power supply with two ends of the corresponding fixed polar plate 1-5-3 (2-5-3) of the fixed polar plate (moving) and a rectifying measurement circuit connected in series with the branch is used for measuring the branch current and transmitting the measured current to the PLC controller.
Calculating a measurement capacitance, wherein a PLC (programmable logic controller) obtains a measurement current of a current loop formed by a unit fixed polar plate 1-1-3 (2-1-3) and a corresponding fixed roller unit movable polar plate 1-5-3 or a movable roller unit movable polar plate 2-5-3, and calculates the capacitance between the unit fixed polar plate 1-1-3 (2-1-3) and the corresponding fixed roller unit movable polar plate 1-5-3 or the movable roller unit movable polar plate 2-5-3 according to the measurement current to obtain the measurement capacitance; as shown in fig. 6 and 7, when one of the set (moving) roller unit movable electrode plates 1-5-3 (2-5-3) is moved away from the measurement area due to the rotation of the rubber roller, the set (moving) roller movable electrode plate electrode 1-5-1 (2-5-1) of the set (moving) roller unit movable electrode plate 1-5-3 (2-5-3) and the set (moving) roller tile electrode 1-4-1 (2-4-1) are separated from contact with each other, and at the same time, the set (moving) roller movable electrode plate electrode 1-5-1 (2-5-1) of the next set (moving) roller unit movable electrode plate 1-5-3 (2-5-1) and the set (moving) roller tile electrode 1-4-1 (2-4-1) are close to each other to enter into a contact state, so that the measurement of the corresponding set (moving) roller rubber layer 1-7 (2-7) on the next set (2-7) is realized.
As shown in FIG. 9, the static (moving) roller air capacitance monitor 1-3 (2-3) monitors the dielectric constant ε of the air containing chaff dust in real time a Preferably, the dielectric constant obtained by the step is specifically that the air capacitance C is obtained by measuring the fixed roller air capacitance monitor 1-3 or the movable roller air capacitance monitor 2-3 x Through air capacitor and vacuum capacitor C 0 Calculating the relative dielectric constant epsilon of air containing husk dust r According to the relative dielectric constant epsilon r And vacuum dielectric constant ε 0 The dielectric constant of air containing chaff dust was calculated. The specific formula is as follows:
ε r ＝C x /C 0
ε a ＝ε 0 C x /C 0
calculating the thickness of the rubber layer, and enabling the PLC to measure capacitance, unit fixed polar plate 1-1-3 (2-1-3) and pair according to the air dielectric constant containing chaff dust, measured by the fixed roller air capacitance monitor 1-3 or the movable roller air capacitance monitor 2-3The thickness of the rubber layer is calculated according to the corresponding fixed roller unit movable polar plate 1-5-3 or the distance between the movable roller unit movable polar plates 2-5-3; since the spatial position of the fixed polar plate 1-1 (2-1) relative to the fixed (moving) roller rotating shaft 1-6 (2-6) is kept unchanged by the fixed (moving) roller, the distance H=Ha+Hx between the moving polar plate and the fixed polar plate is unchanged, ha is the thickness of an air layer, hx is the thickness of a rubber layer, and the dielectric constant of the rubber is epsilon x Since the capacitance calculation formula is:
C＝εS/(4πkH)
ε＝(ε x Hx+ε a Ha)/H
wherein epsilon is the average dielectric constant, S is the opposite area of the two plates, H is the distance between the two plates, and k is the constant of electrostatic force; and the measured capacitance between the two polar plates is obtained, so that the Hx and Ha sizes can be finally obtained, and the thickness of the rubber layer can be obtained, thereby obtaining the current radius of the rubber roller. In an embodiment, preferably, the method further comprises the steps of adjusting the rotating speed, wherein the PLC calculates the radius of the rubber layer through the thickness of the rubber layer, calculates the current linear speed according to the radius of the rubber layer and the current rotating speed, and adjusts the rotating speed of the set roller driving motor 1-2 or the moving roller driving motor 2-2 according to the current linear speed to ensure that the linear speeds of the two rubber rollers are in the optimal process value; the distance between the two rubber rollers is opened by rice grains, and preferably, the method further comprises the step of constant pressure adjustment, wherein the PLC adjusts the pressure of the pneumatic constant pressure mechanism 3 according to the radius of the rubber layer, so that the pressure of the pneumatic constant pressure mechanism 3 and the pressure of the rice grains on the two rubber rollers are kept balanced.
In one embodiment, preferably, the step of adjusting the rotation speed further comprises the step of calculating the target rotation speed of the fixed roller driving motor 1-2 or the movable roller driving motor 2-2 by the PLC through the number of fixed roller movable electrode plates 1-5-1 uniformly distributed along the circumferential direction of the fixed roller mechanism 1 or the number of movable roller movable electrode plates 2-5-1 uniformly distributed along the circumferential direction of the movable roller mechanism 2 and the contact time threshold between the unit movable electrode plates and the fixed roller tile electrodes 1-4-1 or the movable roller tile electrodes 2-4-1, and adjusting the rotation speed of the fixed roller driving motor 1-2 or the movable roller driving motor 2-2 according to the target rotation speed. In the present embodiment, in order to reduce the cost, the response time tp of the PLC current transformer is set to be 10ms, and the response time tg of the current transformer is set to be 10ms, so that the delay time t=tp+tg of the control part is 20ms, namely, each unit movable pole plate 1-5-3 is required
(2-5-3) and the fixed (moving) roller tile electrode 1-4-1 (2-4-1) are kept in contact for 20ms or more. The formula of the time required for one rotation of the rubber roll of the rice huller is 360 degrees/(n/60 s is 360 degrees), n is the rotating speed, and the formula of the change of the rotating speed of the rubber roll is as follows: 360 DEG/(n/60 s is 360 DEG) is not less than z is not less than t, wherein z is the number of fixed-roller movable electrode plates 1-5-1 uniformly distributed along the circumferential direction of the fixed-roller mechanism 1 or the number of movable-roller movable electrode plates 2-5-1 uniformly distributed along the circumferential direction of the movable-roller mechanism 2, and the normal measurement activity can be ensured only if the above formula is satisfied.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any way; those skilled in the art can smoothly practice the application as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present application are possible in light of the above teachings without departing from the scope of the application; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application still fall within the scope of the present application.
Claims (13)
1. The non-contact measurement method for the rubber roller of the rice huller is characterized by comprising the following steps of:
calculating a measured capacitance, wherein a PLC (programmable logic controller) obtains a measured current of a current loop formed by a unit fixed polar plate and a corresponding unit movable polar plate, and calculates the capacitance between the unit fixed polar plate and the corresponding unit movable polar plate according to the measured current to obtain the measured capacitance;
calculating the thickness of the rubber layer, wherein the PLC calculates the thickness of the rubber layer according to the air dielectric constant containing rice husk dust, the measured capacitance and the distance between the unit fixed polar plate and the corresponding unit movable polar plate, which are monitored by the air capacitance monitor;
the unit fixed polar plate is arranged opposite to the rubber roller hub, and the unit movable polar plate is arranged between the rubber roller hub and the rubber layer; the unit movable polar plates are in one-to-one correspondence with the unit fixed polar plates;
acquiring an air capacitance C measured by an air capacitance monitor x Through air capacitor and vacuum capacitor C 0 Calculating the relative dielectric constant epsilon of air containing husk dust r According to the relative dielectric constant epsilon r And vacuum dielectric constant ε 0 The dielectric constant of air containing chaff dust is calculated as follows:
ε r ＝C x /C 0
ε a ＝ε 0 C x /C 0
calculating the thickness of the rubber layer according to the air dielectric constant containing rice husk dust, the measured capacitance and the distance between the unit fixed polar plate and the corresponding unit movable polar plate, which are monitored by the air capacitance monitor; the distance h=ha+hx between the unit movable plate and the unit fixed plate is unchanged, ha is the thickness of the air layer, hx is the thickness of the rubber layer, and the dielectric constant of the rubber is known as epsilon x The capacitance calculation formula is:
C＝εS/(4πkH)
ε＝(ε x Hx+ε a Ha)/H
wherein epsilon is the average dielectric constant, S is the opposite area of the two plates, H is the distance between the two plates, and k is the constant of electrostatic force;
and obtaining the Hx and Ha according to the obtained measured capacitance between the two polar plates.
2. The non-contact measuring method of a rubber roll of a rice huller as recited in claim 1, further comprising the step of adjusting a rotational speed, wherein the PLC controller calculates a radius of the rubber layer through the thickness of the rubber layer, calculates a current linear velocity according to the radius of the rubber layer and the current rotational speed, and adjusts a rotational speed of a rubber roll driving motor according to the current linear velocity; the method also comprises the step of constant pressure adjustment, wherein the PLC adjusts the pressure of the pneumatic constant pressure mechanism according to the radius of the rubber layer.
3. The non-contact measuring method of a rubber roll of a rice huller as recited in claim 2, wherein: the step of adjusting the rotating speed further comprises the step of calculating the target rotating speed of the rubber roller driving motor by the PLC through the number of movable polar plate electrodes uniformly distributed along the circumferential direction of the rubber roller and the contact time threshold value between the unit movable polar plate and the tile electrode, and adjusting the rotating speed of the rubber roller driving motor according to the target rotating speed.
4. The non-contact measurement structure of the rubber roll of the rice huller, based on the non-contact measurement method of the rubber roll of the rice huller as defined in any one of claims 1 to 3, is characterized in that: the device comprises a measuring fixed pole plate, a movable pole plate electrode, an air capacitance monitor, a stator electrode and a PLC (programmable logic controller), wherein the movable pole plate electrode is arranged between a hub and a rubber layer of a rubber roller, the movable pole plate electrode is fixedly connected with the hub, the measuring fixed pole plate is opposite to the hub, the measuring fixed pole plate is electrically connected with the movable pole plate electrode, the air capacitance monitor is electrically connected with the inner side of the measuring fixed pole plate, the stator electrode is electrically connected with the movable pole plate electrode in a contact manner, the stator electrode and the measuring fixed pole plate are respectively connected with two ends of an alternating current power supply, the measuring fixed pole plate and the movable pole plate electrode form a current loop, a rectifying measuring circuit is connected in series in the current loop, and the PLC is electrically connected with the rectifying measuring circuit.
5. The non-contact measuring structure of a rubber roll of a rice huller as recited in claim 4, wherein: the measuring fixed polar plate comprises a fixed polar plate supporting frame, a fixed polar plate measuring bus and a plurality of unit fixed polar plates, wherein the measuring fixed polar plate is fixedly connected with the integral frame through the fixed polar plate supporting frame, the fixed polar plate measuring bus is arranged on the outer surface of the measuring fixed polar plate, the unit fixed polar plates are sequentially connected in series and arranged on the inner surface of the measuring fixed polar plate, the unit fixed polar plate is opposite to the hub, the fixed polar plate measuring bus is electrically connected with the unit fixed polar plate, the unit fixed polar plate is electrically connected with the movable polar plate electrode, and the axis of the measuring fixed polar plate is parallel to the axis of the hub.
6. The non-contact measuring structure of a rubber roll of a rice huller as recited in claim 4, wherein: and a plurality of movable pole plate electrodes are distributed at intervals along the circumferential direction of the hub.
7. The non-contact measuring structure of a rubber roll of a rice huller as recited in claim 5, wherein: the movable electrode plate electrode comprises a plurality of unit movable electrode plates, the unit movable electrode plates are sequentially connected in series and axially distributed along the hub, and the unit movable electrode plates are in one-to-one correspondence with the unit fixed electrode plates.
8. The non-contact measuring structure of a rubber roll of a rice huller as recited in claim 7, wherein: the unit movable electrode plates and the unit fixed electrode plates are composed of flexible insulating substrates and aluminum foil electrodes, the flexible insulating substrates enclose a cavity with an open top surface, the aluminum foil electrodes are arranged on the top surface of the cavity, an electrode plate serial circuit is arranged on one side of each aluminum foil electrode, and the unit movable electrode plates or the unit fixed electrode plates are sequentially connected in series through the electrode plate serial circuit.
9. The rice huller rubber roll non-contact measuring structure as recited in claim 8, wherein: the measuring fixed pole plate and the movable pole plate electrode further comprise an electric field shielding grid mesh, and the electric field shielding grid mesh wraps the side face of the unit movable pole plate and the side face of the unit fixed pole plate.
10. The rice huller rubber roll non-contact measuring structure as recited in claim 9, wherein: the electric field shielding grid net wraps the bottom surface of the unit movable pole plate and the bottom surface of the unit fixed pole plate.
11. The non-contact measuring structure of a rubber roll of a rice huller as recited in claim 7, wherein: the stator electrode comprises a tile electrode, an electrode support frame and a conductive bus, the stator electrode is fixedly connected with the integral frame through the electrode support frame, the tile electrode is arranged between the movable electrode plate electrode and the hub, the tile electrode is fixed at the tail end of the electrode support frame through a connecting piece and is in contact with the movable electrode plate of the unit, the conductive bus is fixed on the electrode support frame, and an alternating current power supply is electrically connected with the tile electrode through the conductive bus.
12. A rice huller, characterized in that: comprises a fixed roller mechanism and a movable roller mechanism; the fixed roll mechanism and the movable roll mechanism comprise the rubber roll non-contact measuring structure of the rice huller according to any one of claims 4-11, the fixed roll mechanism further comprises a fixed roll driving motor, a fixed roll hub, a fixed roll rotating shaft and a fixed roll rubber layer, and the movable roll mechanism further comprises a movable roll driving motor, a movable roll hub, a movable roll rotating shaft and a movable roll rubber layer; the non-contact measuring structure of the rubber roller of the rice huller is used for monitoring the diameter of the fixed roller rubber layer and the diameter of the movable roller rubber layer, the fixed roller rotating shaft is fixedly connected with the fixed roller hub, the fixed roller rotating shaft is connected with the fixed roller driving motor, and the fixed roller rubber layer is sleeved on the outer surface of the fixed roller hub; the movable roller rotating shaft is fixedly connected with the movable roller hub, the movable roller rotating shaft is connected with the movable roller driving motor, and the movable roller rubber layer is sleeved on the outer surface of the movable roller hub.
13. A rice huller as recited in claim 12, wherein: still include pneumatic constant pressure mechanism, pneumatic swing arm, measure the fixed polar plate including the movable roller and measure the fixed polar plate, the movable roller measure fixed polar plate with fixed roller wheel hub is relative, the stator electrode includes the movable roller stator electrode, the movable roller stator electrode with movable roller wheel hub fixed surface connects, the movable roller measure fixed polar plate the movable roller stator electrode respectively with pneumatic swing arm is connected, pneumatic constant pressure mechanism and whole frame fixed connection, pneumatic swing arm bottom pivot and whole frame rotate and are connected, pneumatic swing arm intermediate bearing with movable roller pivot cooperation, pneumatic swing arm top pivot connecting block with pneumatic swing arm top pivot rotates and is connected, pneumatic swing arm top pivot connecting block with pneumatic constant pressure mechanism's piston rod fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810646211.0A CN108514907B (en) | 2018-06-21 | 2018-06-21 | Non-contact measurement method and structure for rubber roller of rice huller and rice huller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810646211.0A CN108514907B (en) | 2018-06-21 | 2018-06-21 | Non-contact measurement method and structure for rubber roller of rice huller and rice huller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108514907A CN108514907A (en) | 2018-09-11 |
| CN108514907B true CN108514907B (en) | 2023-09-26 |
Family
ID=63428528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810646211.0A Active CN108514907B (en) | 2018-06-21 | 2018-06-21 | Non-contact measurement method and structure for rubber roller of rice huller and rice huller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108514907B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589493A (en) * | 2020-05-15 | 2020-08-28 | 湖北永祥粮食机械股份有限公司 | Rice huller with differential roll-pairing mechanism and control method thereof |
| CN111659486B (en) * | 2020-06-11 | 2022-01-07 | 武汉轻工大学 | Rice huller rubber roll diameter measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1151254A (en) * | 1978-10-02 | 1983-08-02 | Peter F. Braunlich | Pressure sensing capacitor |
| US4434666A (en) * | 1979-04-05 | 1984-03-06 | National Research Development Corporation | Electromagnetic flowmeters and methods for measuring flow |
| JP2000139865A (en) * | 1998-11-10 | 2000-05-23 | Sekisui Chem Co Ltd | Adipometer |
| JP2009270873A (en) * | 2008-05-02 | 2009-11-19 | Ihi Corp | Oil film thickness measuring device and method |
| CN104588150A (en) * | 2014-12-06 | 2015-05-06 | 诸暨市粮工机械有限公司 | Driving device of full-automatic rubber roller rice huller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5773887B2 (en) * | 2009-02-19 | 2015-09-02 | オークランド・ユニサービシス・リミテッド | System and method for determining capacitance of a dielectric elastomer actuator |
-
2018
- 2018-06-21 CN CN201810646211.0A patent/CN108514907B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1151254A (en) * | 1978-10-02 | 1983-08-02 | Peter F. Braunlich | Pressure sensing capacitor |
| US4434666A (en) * | 1979-04-05 | 1984-03-06 | National Research Development Corporation | Electromagnetic flowmeters and methods for measuring flow |
| JP2000139865A (en) * | 1998-11-10 | 2000-05-23 | Sekisui Chem Co Ltd | Adipometer |
| JP2009270873A (en) * | 2008-05-02 | 2009-11-19 | Ihi Corp | Oil film thickness measuring device and method |
| CN104588150A (en) * | 2014-12-06 | 2015-05-06 | 诸暨市粮工机械有限公司 | Driving device of full-automatic rubber roller rice huller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108514907A (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108514907B (en) | Non-contact measurement method and structure for rubber roller of rice huller and rice huller | |
| CN107457141B (en) | Device for coating graphene on surface of metal foil | |
| CN107611350B (en) | Wide-width pole piece double-side nesting coating machine for power battery and super capacitor | |
| CN207204501U (en) | A kind of extruding spin coating device for coating machine | |
| CN102294878B (en) | Preparation device of lithium battery electrode material | |
| CN107626737B (en) | Pole piece rolling system capable of extruding and extending current collector of battery pole piece | |
| CN105633335B (en) | Film covering device | |
| CN207325175U (en) | A kind of device in metal foil surface coating graphene | |
| CN206126432U (en) | Tail winding mechanism of winder | |
| CN107457158A (en) | A kind of extruding spin coating device for coating machine | |
| CN207209533U (en) | The tenslator amplified based on swing rod and gear | |
| CN105363795B (en) | Rolling line taper rollgang speed dynamic cooperation control system and its method | |
| CN201887110U (en) | Dual-motor synchronously-driven battery pole piece twin-roller machine | |
| CN208642751U (en) | Hulling rubber roller non-contact measurement structure and a kind of hulling machine | |
| CN107634178B (en) | High-voltage discharge treatment device for surface treatment of metal foil | |
| CN113972353A (en) | Segmented heating and rolling mechanism and pole piece rolling method | |
| CN102179401B (en) | Battery pole piece fine rolling mill synchronously driven by double motors | |
| CN207217662U (en) | Electrion processing unit for metal foil surface processing | |
| CN207572457U (en) | Power battery and the ultracapacitor two-sided set position coating machine of wide cut pole piece | |
| CN207204524U (en) | A kind of unicoater drying unit | |
| CN108405032B (en) | Rice huller system with self-feedback automatic compensation | |
| CN102642371A (en) | Lithium battery substrate lamination machine | |
| CN207231432U (en) | High-grade precision electric chief axis system testing research platform | |
| CN102477523B (en) | Brush roll horizontal adjusting device and its application method | |
| CN207531788U (en) | A kind of automation musculus cutaneus eccentric rolls device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |