Feeding device of portable near-infrared grain analyzer and installation and use method thereof
阅读说明：本技术 便携式近红外粮食分析仪的进料装置及其安装使用方法 (Feeding device of portable near-infrared grain analyzer and installation and use method thereof ) 是由 高洪智 魏艺 丁海泉 刘振尧 于 2019-11-13 设计创作，主要内容包括：本发明公开的便携式近红外粮食分析仪的进料装置,包括支撑板、叶轮、叶片、叶轮轴、叶轮仓、检测仓、漏斗、电机、卸料抽屉；其中,支撑板上设置有叶轮仓,叶轮仓中间设置有叶轮,叶轮周围均匀设置有叶片,叶轮轴与叶轮固定,电机通过叶轮轴带动叶轮转动；漏斗与检测仓作为一个整体,设置在叶轮仓的上方；支撑板在叶轮仓所在区域开有一卸料口,卸料口正下方设置有卸料抽屉。本发明可以实现不卡料且能对各种不同大小、形状的粮食颗粒进行自动分次测量,实现粮食检测仪的小型化和轻量化。(The invention discloses a feeding device of a portable near-infrared grain analyzer, which comprises a supporting plate, an impeller, blades, an impeller shaft, an impeller bin, a detection bin, a hopper, a motor and a discharging drawer, wherein the impeller is arranged on the supporting plate; the impeller bin is arranged on the supporting plate, the impeller is arranged in the middle of the impeller bin, blades are uniformly arranged around the impeller, the impeller shaft is fixed with the impeller, and the motor drives the impeller to rotate through the impeller shaft; the hopper and the detection bin are integrated and arranged above the impeller bin; the supporting plate is provided with a discharge opening in the area of the impeller bin, and a discharge drawer is arranged right below the discharge opening. The grain detector can realize automatic fractional measurement of grain particles with different sizes and shapes without blocking the material, and realizes miniaturization and light weight of the grain detector.)
1. Feed arrangement of portable near-infrared grain analysis appearance, its characterized in that: comprises a supporting plate, an impeller, blades, an impeller shaft, an impeller bin, a detection bin, a hopper, a motor and a discharging drawer; the impeller bin is arranged on the supporting plate, the impeller is arranged in the middle of the impeller bin, blades are uniformly arranged around the impeller, the impeller shaft is fixed with the impeller, and the motor drives the impeller to rotate through the impeller shaft; the hopper and the detection bin are integrated and arranged above the impeller bin; the supporting plate is provided with a discharge opening in the area of the impeller bin, and a discharge drawer is arranged right below the discharge opening.
2. The feeding device of the portable near-infrared grain analyzer of claim 1, which is characterized in that: more than one U-shaped clamping groove is formed in the impeller and used for placing blades; the length and the width of the middle section of the blade are respectively equal to the length and the depth of the U-shaped clamping groove, and the width of the middle section of the blade is smaller than the width of the two ends of the blade.
3. The feeding device of the portable near-infrared grain analyzer of claim 2, wherein: a limiting piece is arranged in the U-shaped clamping groove, and a limiting opening is arranged at the position corresponding to the blade; the limiting sheet is a positioning bulge, and the limiting opening is a U-shaped positioning groove.
4. The feeding device of the portable near-infrared grain analyzer of claim 1, which is characterized in that: the blade is made of TPU materials.
5. The feeding device of the portable near-infrared grain analyzer of claim 1, which is characterized in that: the number of the blades is set to be an even number, and different numbers can be set according to different granularities.
6. The feeding device of the portable near-infrared grain analyzer of claim 1, which is characterized in that: the impeller is characterized by further comprising a Hall sensor, and magnets are mounted at the bottom of the impeller corresponding to the blades.
7. The feeding device of the portable near-infrared grain analyzer of claim 1, which is characterized in that: the bottom of the impeller bin is provided with a raised step matched with the shape of the impeller.
8. The feeding device of the portable near-infrared grain analyzer of claim 1, which is characterized in that: the position under the detection storehouse and discharge opening position can change relative position as required, detect the position under the storehouse and the interval between the discharge opening be D, D be N D, N is positive integer, D is the width that detects storehouse below open-ended.
9. The feeding device of the portable near-infrared grain analyzer of claim 8, wherein: the position right below the detection bin and the position of the discharge opening are 180-degree symmetrical positions.
10. The installation and use method of the feeding device of the portable near-infrared grain analyzer is characterized by comprising the following steps in sequence:
(1) firstly, mounting an impeller cabin and a motor, and enabling a motor shaft to extend upwards into the center of the impeller cabin;
(2) sliding the impeller shaft to the root of the motor shaft, and screwing the lateral fastening screw tightly to ensure the height and provide enough torque;
(3) inwards clamping the U-shaped positioning groove of the blade into the U-shaped clamping groove of the impeller to enable the outer mounting plane to be parallel and level, ensuring that the blade is clamped into the positioning groove, enabling the operation modes of all the blades to be the same, mounting the magnets into corresponding magnet mounting holes, and knocking in and fastening;
(4) sleeving the installed impeller module into an impeller shaft, and fastening the impeller module at the upper part by using a screw;
(5) the whole installed impeller bin module is installed to the positioning hole of the supporting plate from the bottom, and then the module can be assembled;
(6) the impeller is replaced only by detaching the impeller bin module from the bottom, taking out the impeller, and then pulling out the blades for replacement.
Technical Field
The invention relates to a near-infrared spectrum analyzer, in particular to a feeding device of a portable near-infrared grain analyzer and an installation and use method thereof.
Background
The Near Infrared (NIR) spectrum detection technology is a high and new analysis and test technology which is developed rapidly in recent years, and compared with the traditional analysis technology, the near infrared spectrum analyzer has the unique advantages of nondestructive detection, high analysis efficiency, high analysis speed, low analysis cost, good reproducibility and the like.
Near-infrared analysis mainly utilizes the absorption characteristic of a detected object to fixed-wavelength near-infrared light to analyze the content of various substances, and simultaneously, due to the characteristics of high detection speed and no damage to samples, a production field also becomes a place where near-infrared products often appear. At present, when grain crops such as wheat, rice, soybean and the like are sold, the price is set mainly according to the content of internal nutrient components, and the main data source mode is still to sample and send the grain crops to a laboratory for chemical inspection, so that the efficiency is low, and the period is long.
In recent years, the near infrared technology is widely applied in the civil field, the rapid nondestructive detection of detection is realized, but more use environments are in factories or laboratory detection rooms, and the near infrared technology is inconvenient to use in grain purchasing sites due to large volume and heavy weight. And its main volume and weight are occupied by the automatic feeding device except for parts such as an optical circuit.
Therefore, the feeding device which is small in size, light in weight and suitable for the near-infrared instruments of various grain crops has important research value.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a feeding device of a portable near-infrared grain analyzer, which has the advantages of small volume, strong applicability and a feeding structure of a testing instrument with a self-cleaning function, can realize automatic fractional measurement of grain particles with different sizes and shapes without material blockage, and realizes the miniaturization and light weight of a grain detector.
The invention also aims to provide an installation and use method of the feeding device of the portable near-infrared grain analyzer, which realizes the functions of quick replacement and demand change through a specific installation mode.
The purpose of the invention is realized by the following technical scheme:
the feeding device of the portable near-infrared grain analyzer comprises a supporting plate, an impeller, blades, an impeller shaft, an impeller bin, a detection bin, a funnel, a motor and a discharging drawer; the impeller bin is arranged on the supporting plate, the impeller is arranged in the middle of the impeller bin, blades are uniformly arranged around the impeller, the impeller shaft is fixed with the impeller, and the motor drives the impeller to rotate through the impeller shaft; the hopper and the detection bin are integrated and arranged above the impeller bin; the supporting plate is provided with a discharge opening in the area of the impeller bin, and a discharge drawer is arranged right below the discharge opening.
The funnel is positioned above and is mainly used for loading a sample to be detected; the detection bin is positioned under the funnel, and the sample detection light path passes through the sample through the detection windows on two sides of the detection bin to realize detection; the impeller and the impeller bin are arranged below the feeding device and are also the main part of the feeding device, and the feeding device is used for controlling the batch blanking of the sample so as to control the batch detection of the sample in the detection bin; the discharging drawer is located at the lowest part of the whole structure and used for collecting samples after detection, and recovery is facilitated.
More than one U-shaped clamping groove is formed in the impeller and used for placing blades; the length and the width of the middle section of the blade are respectively equal to the length and the depth of the U-shaped clamping groove, and the width of the middle section of the blade is smaller than the width of the two ends of the blade. Because the length and the width of the middle section of the blade are respectively equal to the length and the depth of the U-shaped clamping groove, the middle section of the blade is just matched with the U-shaped clamping groove during installation; simultaneously, the width of the middle section of the blade is smaller than the width of the two ends of the blade, so that after the middle section of the blade is installed on the U-shaped clamping groove, the two ends of the blade are clamped on the outer surface of the impeller, and the limiting effect is achieved.
Among the feed arrangement, the impeller adopts the die sinking injection moulding processing, designs for the U-shaped draw-in groove, can reduce half the installation quantity of blade, and 1 blade can be installed for 2, reduces the installation complexity.
And a limiting piece is arranged in the U-shaped clamping groove, and a limiting opening is arranged at the corresponding position of the blade. The design of the limiting sheet and the limiting opening further strengthens the limiting effect between the blade and the impeller.
The limiting sheet is a positioning bulge, and the limiting opening is a U-shaped positioning groove. The U-shaped positioning groove is formed above the blade and used for positioning the blade and the impeller, so that installation accuracy is guaranteed, and direction installation errors can be prevented. The bottom of the blade mounting groove is provided with a positioning bulge which is matched with the U-shaped groove of the blade and used for positioning the position of the blade.
The blades and the impeller are detachably mounted, and the detachable mounting can be realized through screws; in addition to being removably mounted, the blades may be integrally formed with the impeller.
The blade is made of TPU materials. The blade made of the TPU material can provide good wear resistance and deformation resistance, and can ensure that the blade cannot cause serious wear and deformation after being used for a long time, thereby ensuring the sealing property. The blade may also be made of other soft materials, only the preference of TPU material being listed here.
The number of the blades is set to be an even number, and different numbers can be set according to different granularities. The particles with smaller size (such as millet and rapeseed) can be arranged into 12-16 teeth, so that the accurate control of the throughput of the sample is realized; larger particles (such as corn and soybean) can be set to have 8 teeth to 6 teeth, so that the non-repeated measurement of the sample is ensured, and the sampling representativeness is ensured.
The feeding device of the portable near-infrared grain analyzer further comprises a Hall sensor, and magnets are mounted at the bottom of the impeller corresponding to the blades. The Hall sensor and the magnet are used for determining the rotating position of the bottom Hall sensor at each time, so that the matching of the rotating angle and the number of the blades at each time is ensured, and the equalization of blanking at each time is ensured. At the moment, the motor adopts a common motor, the purpose of knowing the rotation angle of the impeller at each time can be well realized, and the space occupied by the impeller is effectively utilized. The direct-current speed reduction motor and the Hall sensor are used for positioning according to the design of the magnet at the bottom of the impeller, and the device is mainly suitable for an impeller structure with large torque and large radius and is suitable for measuring large-particle samples. At the moment, the motor is a direct current speed reducing motor.
The motor scheme can also be used for installing different motors according to different requirements: for example, the optional step motor that uses of motor through step number control turned angle to realize that the sample detects many times, the impeller structure of the little moment of torsion of mainly applicable minor radius adopts step motor can directly know the angle of rotation of impeller every time simultaneously.
The width of the discharge opening below the impeller is consistent with the width of a lower area of the step of the impeller bin, so that the impeller can sweep out a sample and residual dust together after sweeping the impeller bin, and a certain self-cleaning function is realized.
The impeller shaft is positioned in the middle of the impeller and is a machining part. Because of the impeller is the material of moulding plastics, therefore pivot position intensity is not enough, and through flange mounting mode and impeller installation outside the impeller shaft provides the shaft coupling installation function, guarantee installation intensity and installation accuracy, make the impeller more convenient the dismantlement simultaneously.
The impeller chamber in the device is directly matched with the supporting plate to form a sealed space for conveying samples. The supporting plate is used for installing optical path related parts and electrical parts to realize the detection function of the instrument.
The bottom of the impeller bin is provided with a raised step matched with the shape of the impeller. The raised steps and the impeller are matched to play a certain sealing role in external dust.
The position under the detection storehouse and discharge opening position can change relative position as required, detect the position under the storehouse and the interval between the discharge opening be D, D be N D, N is positive integer, D is the width that detects storehouse below open-ended.
The position right below the detection bin and the position of the discharge opening are 180-degree symmetrical positions.
The other purpose of the invention is realized by the following technical scheme:
the installation and use method of the feeding device of the portable near-infrared grain analyzer comprises the following steps in sequence:
(1) firstly, mounting an impeller cabin and a motor, and enabling a motor shaft to extend upwards into the center of the impeller cabin;
(2) sliding the impeller shaft to the root of the motor shaft, and screwing the lateral fastening screw tightly to ensure the height and provide enough torque;
(3) inwards clamping the U-shaped positioning groove of the blade into the U-shaped clamping groove of the impeller to enable the outer mounting plane to be parallel and level, ensuring that the blade is clamped into the positioning groove, enabling the operation modes of all the blades to be the same, mounting the magnets into corresponding magnet mounting holes, and knocking in and fastening;
(4) sleeving the installed impeller module into an impeller shaft, and fastening the impeller module at the upper part by using a screw;
(5) the whole installed impeller bin module is installed to the positioning hole of the supporting plate from the bottom, and then the module can be assembled;
(6) the impeller is replaced only by detaching the impeller bin module from the bottom, taking out the impeller, and then pulling out the blades for replacement.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention adopts the soft material impeller and is matched with the circular impeller bin for use, thereby completely solving the problem of material blockage of instruments of the type.
2. The invention can flexibly configure different blade numbers and different rotating radiuses according to actual test requirements, thereby further enhancing the universality and portability of the instrument.
3. The invention realizes the quick replacement of the impeller, and non-professional workers can also complete the replacement operation of wearing parts such as the blades and the like.
4. The motor of the invention is flexible to select and match, and different motors can be selected according to different requirements, thereby realizing the accurate control of samples.
5. The impeller feeding structure can detect a sample in a multi-part equal division mode under the condition that the grain sample is added once, so that the uniformity of grain detection can be greatly improved, and a more accurate detection result can be obtained; meanwhile, due to the adoption of the soft material transition type blocking piece, the device can be suitable for samples with different particle sizes, has the function of automatic detection of blocking materials, better protects structural members such as a spectrometer motor, a coupler and a wave wheel, and prolongs the service life.
6. According to the invention, the position sensor is added at the discharging drawer part, so that the condition that a sample enters the instrument due to discharging without a drawer can be prevented.
Drawings
Fig. 1 is a schematic structural diagram of a feeding device of the portable near-infrared grain analyzer.
Fig. 2 is a sectional view of a feeding device of the portable near-infrared grain analyzer according to the present invention.
Fig. 3 is a schematic structural view of an impeller of the feeding device shown in fig. 1.
Fig. 4 is a schematic structural view of a blade of the feeding device shown in fig. 1.
Wherein the reference numerals have the following meanings:
1-a funnel; 2, a detection bin; 3-a support plate; 4-impeller cabin; 5-an impeller; 6-a discharge drawer; 7-a blade; 8-impeller shaft; 9-a motor; 10-U-shaped clamping groove; 11-U-shaped positioning groove and 12-magnet.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1-4, the feeding device of the portable near-infrared grain analyzer comprises a support plate, an impeller, blades, an impeller shaft, an impeller bin, a detection bin, a hopper, a motor and a discharge drawer; the impeller bin is arranged on the supporting plate, the impeller is arranged in the middle of the impeller bin, blades are uniformly arranged around the impeller, the impeller shaft is fixed with the impeller, and the motor drives the impeller to rotate through the impeller shaft; the hopper and the detection bin are integrated and arranged above the impeller bin; the supporting plate is provided with a discharge opening in the area of the impeller bin, and a discharge drawer is arranged right below the discharge opening.
The funnel is positioned above and is mainly used for loading a sample to be detected; the detection bin is positioned under the funnel, and the sample detection light path passes through the sample through the detection windows on two sides of the detection bin to realize detection; the impeller and the impeller bin are arranged below the feeding device and are also the main part of the feeding device, and the feeding device is used for controlling the batch blanking of the sample so as to control the batch detection of the sample in the detection bin; the discharging drawer is located at the lowest part of the whole structure and used for collecting samples after detection, and recovery is facilitated.
More than one U-shaped clamping groove is formed in the impeller and used for placing blades; the length and the width of the middle section of the blade are respectively equal to the length and the depth of the U-shaped clamping groove, and the width of the middle section of the blade is smaller than the width of the two ends of the blade. Because the length and the width of the middle section of the blade are respectively equal to the length and the depth of the U-shaped clamping groove, the middle section of the blade is just matched with the U-shaped clamping groove during installation; simultaneously, the width of the middle section of the blade is smaller than the width of the two ends of the blade, so that after the middle section of the blade is installed on the U-shaped clamping groove, the two ends of the blade are clamped on the outer surface of the impeller, and the limiting effect is achieved.
Among the feed arrangement, the impeller adopts the die sinking injection moulding processing, designs for the U-shaped draw-in groove, can reduce half the installation quantity of blade, and 1 blade can be installed for 2, reduces the installation complexity.
And a limiting piece is arranged in the U-shaped clamping groove, and a limiting opening is arranged at the corresponding position of the blade. The design of the limiting sheet and the limiting opening further strengthens the limiting effect between the blade and the impeller.
The limiting sheet is a positioning bulge, and the limiting opening is a U-shaped positioning groove. The U-shaped positioning groove is formed above the blade and used for positioning the blade and the impeller, so that installation accuracy is guaranteed, and direction installation errors can be prevented. The bottom of the blade mounting groove is provided with a positioning bulge which is matched with the U-shaped groove of the blade and used for positioning the position of the blade.
The blades and the impeller are detachably mounted, and the detachable mounting can be realized through screws; in addition to being removably mounted, the blades may be integrally formed with the impeller.
The blade is made of TPU materials. The blade made of the TPU material can provide good wear resistance and deformation resistance, and can ensure that the blade cannot cause serious wear and deformation after being used for a long time, thereby ensuring the sealing property. The blade may also be made of other soft materials, only the preference of TPU material being listed here.
The number of the blades is set to be an even number, and different numbers can be set according to different granularities. The particles with smaller size (such as millet and rapeseed) can be arranged into 12-16 teeth, so that the accurate control of the throughput of the sample is realized; larger particles (such as corn and soybean) can be set to have 8 teeth to 6 teeth, so that the non-repeated measurement of the sample is ensured, and the sampling representativeness is ensured.
The feeding device of the portable near-infrared grain analyzer further comprises a Hall sensor, and magnets are mounted at the bottom of the impeller corresponding to the blades. The bottom Hall sensor is used for determining the rotating position at each time, so that the matching of the rotating angle and the number of the blades at each time is ensured, and the equalization of blanking at each time is ensured. At the moment, the motor adopts a common motor, the purpose of knowing the rotation angle of the impeller at each time can be well realized, and the space occupied by the impeller is effectively utilized.
The motor is arranged at the bottom of the impeller bin, and different motors can be arranged according to different requirements in the motor scheme; the direct-current speed reduction motor and the Hall sensor can be used for positioning according to the magnet design at the bottom of the impeller, and the device is mainly suitable for an impeller structure with large torque and large radius and is suitable for measuring large-particle samples. The motor can also be a stepping motor, and the rotation angle is controlled by the step number so as to realize the multiple detection of the sample, and the device is mainly suitable for the impeller structure with small radius and small torque. The width of the discharge opening below the impeller is consistent with the width of a lower area of the step of the impeller bin, so that the impeller can sweep out a sample and residual dust together after sweeping the impeller bin, and a certain self-cleaning function is realized.
The impeller shaft is positioned in the middle of the impeller and is a machining part. Because of the impeller is the material of moulding plastics, therefore pivot position intensity is not enough, and through flange mounting mode and impeller installation outside the impeller shaft provides the shaft coupling installation function, guarantee installation intensity and installation accuracy, make the impeller more convenient the dismantlement simultaneously.
The impeller chamber in the device is directly matched with the supporting plate to form a sealed space for conveying samples. The supporting plate is used for installing optical path related parts and electrical parts to realize the detection function of the instrument.
The bottom of the impeller bin is provided with a raised step matched with the shape of the impeller. The raised steps and the impeller are matched to play a certain sealing role in external dust.
The position right below the detection bin and the position of the discharge opening are 180-degree symmetrical positions. The position under the detection bin and the discharge opening position can also change relative positions as required, the interval between the position under the detection bin and the discharge opening is D, D is N D, N is a positive integer, and D is the width of the opening below the detection bin.
The installation and use method of the feeding device of the portable near-infrared grain analyzer comprises the following steps in sequence:
(1) firstly, mounting an impeller cabin and a motor, and enabling a motor shaft to extend upwards into the center of the impeller cabin;
(2) sliding the impeller shaft to the root of the motor shaft, and screwing the lateral fastening screw tightly to ensure the height and provide enough torque;
(3) inwards clamping the U-shaped positioning groove of the blade into the U-shaped clamping groove of the impeller to enable the outer mounting plane to be parallel and level, ensuring that the blade is clamped into the positioning groove, enabling the operation modes of all the blades to be the same, mounting the magnets into corresponding magnet mounting holes, and knocking in and fastening;
(4) sleeving the installed impeller module into an impeller shaft, and fastening the impeller module at the upper part by using a screw;
(5) the whole installed impeller bin module is installed to the positioning hole of the supporting plate from the bottom, and then the module can be assembled;
(6) the impeller is replaced only by detaching the impeller bin module from the bottom, taking out the impeller, and then pulling out the blades for replacement.
Specifically, referring to fig. 1, in the automatic feeding device for a portable near-infrared grain analyzer of the present embodiment, a
After the first detection is finished, the
Repeating the steps, after the samples are completely detected, the
The
the
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
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