CN113720631A - Sampling machine and control method and control system thereof - Google Patents
Sampling machine and control method and control system thereof Download PDFInfo
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- CN113720631A CN113720631A CN202111078560.5A CN202111078560A CN113720631A CN 113720631 A CN113720631 A CN 113720631A CN 202111078560 A CN202111078560 A CN 202111078560A CN 113720631 A CN113720631 A CN 113720631A
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- 238000005070 sampling Methods 0.000 title claims abstract description 176
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
Abstract
The invention relates to the technical field of material sampling, in particular to a sampling machine and a control method and a control system thereof, wherein the sampling machine comprises: sample structure, material analysis structure, surplus grain processing structure and control system, the sample structure includes: but the level is to the locomotive that removes, through the sample pole that lead screw structure and locomotive link to each other, and the sample pole links to each other with air exhaust system, material analysis structure, and control system links to each other with the sample structure to confirm the sample position of sample structure according to the length of the car of material transport vechicle. The sample structure passes through the drive of lead screw structure, and the motor drives the lead screw and rotates, and the removal guide block on the lead screw produces linear motion, drives the removal of sample pole, has improved the removal precision of sample pole, and the sample position is more accurate. And after the control system can determine the sampling area according to the length of the vehicle, the plurality of sampling rods perform random sampling, so that the accuracy of the material test result is improved.
Description
Technical Field
The invention relates to the technical field of material sampling, in particular to a sampling machine and a control method and a control system thereof.
Background
The locomotive and the sample pole of current sample machine often appear the inaccurate problem in position at the removal in-process, even reach the target location, also take place the position removal easily at the sample in-process, cause the phenomenon that the operation of taking a sample is obstructed, under the special circumstances under chain drive, still can increase maintenance cost and repair time because the chain is not hard up.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a sample machine, a control method and a control system thereof, and aims to solve the problems of accurate operation control of a sample rod, fixed position in a sample, accurate measurement result and the like.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a sampler, comprising: sample structure, material analysis structure, surplus grain processing structure and control system, the sample structure includes: but the level to the locomotive that removes, through the lead screw structure with the sample pole that the locomotive links to each other, the sample pole with air exhaust system the material analysis structure links to each other, control system with the sample structure links to each other to the length of the car according to material transport vechicle confirms at random the sample position of sample structure.
In some embodiments, preferably, the skewer structure further comprises a horizontal guide for the carriage, the horizontal guide being disposed on a skewing area rack.
In some embodiments, preferably, the skewing region support comprises: the shed cover is installed on the support frame, the level is constructed to the guide rail on the support frame, the support frame with the area that the shed cover encloses is the sample area.
In some embodiments, it is preferable that a synchronous driving motor is configured on the traveling structure of the moving vehicle.
In some embodiments, preferably, the screw structure includes: the supporting seat of the horizontally driven screw rod structure is fixedly connected with the moving vehicle, and the supporting seat of the vertically driven screw rod structure is fixedly connected with the moving guide block of the horizontally driven screw rod structure; the movable guide block of the vertically up-and-down driving screw rod structure is fixedly connected with the sampling rod.
In some embodiments, preferably, the screw structure includes: the support seat, the driving motor, the coupler, the lead screw and the movable guide block, wherein the driving motor is fixed on the support seat through a motor support, and the motor is connected with the lead screw through the coupler;
the linear nut is sleeved on the screw rod and fixedly connected with the movable guide block.
In some embodiments, preferably, the screw structure further includes: the balance rod is parallel to the lead screw and is positioned on the side edge of the lead screw; and the balance rod is fixedly arranged on the supporting seat and can pass through the movable guide block in a sliding manner.
In some embodiments, preferably, the number of the balance bars is two, and the two balance bars are symmetrically arranged on two sides of the lead screw.
The invention also provides a control method of the sampling machine, which comprises the following steps:
acquiring the length of the material transport vehicle;
matching according to the corresponding relation between the vehicle length and a preset vehicle length-sampling position, and randomly determining the position of the moving vehicle, the moving distance of the sampling rod in the horizontal direction and the moving distance in the vertical direction;
the synchronous driving motor drives the moving vehicle to move to the target position of the moving vehicle on the guide rail, the horizontal lead screw structure drives the sampling rod to move to the target position of the sampling rod in the horizontal direction, and then the vertical lead screw structure drives the sampling rod to move to the target position of the sampling rod in the vertical direction;
and after the sampling rod reaches the target position, the air exhaust system starts to exhaust air, and the material analysis structure starts material analysis.
In some embodiments, preferably, the obtaining the vehicle length of the material transportation vehicle includes: gather the image information of material transport vechicle, image information includes: video or pictures; extracting basic information of the material transport vehicle according to the image information, wherein the basic information comprises: car number, car type, car length, and/or car hopper depth.
In some embodiments, preferably, the obtaining the vehicle length of the material transportation vehicle includes: the method includes the steps of obtaining label information of an externally input material transport vehicle, wherein the label information comprises: the vehicle number and/or vehicle type; and determining the vehicle length and/or the depth of a vehicle hopper of the material transport vehicle according to the matching relationship between the label information and the preset vehicle length.
In some embodiments, preferably, in the wagon length-sampling position corresponding relationship, one wagon length corresponds to a plurality of sampling positions; then the process of the first step is carried out,
the step of matching according to the car length and a preset car length-sample position corresponding relation, and randomly determining the position of the moving car, the moving distance of the sample rod in the horizontal direction and the moving distance in the vertical direction comprises the following steps:
determining all corresponding sampling positions according to the vehicle length;
randomly extracting sampling positions with the same number as the number of the sampling rods from all the corresponding sampling positions;
and determining the position of the moving vehicle, the moving distance of the sampling rod in the horizontal direction and the moving distance in the vertical direction according to the extracted sampling position and the initial positions of the moving vehicle and the sampling rod.
The invention also provides a control system of the sampling machine, which comprises:
the acquisition unit is used for acquiring the length of the material transport vehicle;
the matching unit is used for matching according to the corresponding relation between the vehicle length and a preset vehicle length-sampling position, and randomly determining the position of the moving vehicle, the moving distance of the sampling rod in the horizontal direction and the moving distance in the vertical direction;
an instruction unit to generate and issue instructions, the instructions comprising: the synchronous driving motor drives the moving vehicle to move to the target position of the moving vehicle on the guide rail, the horizontal lead screw structure drives the sampling rod to move to the target position of the sampling rod in the horizontal direction, and then the vertical lead screw structure drives the sampling rod to move to the target position of the sampling rod in the vertical direction; after the sampling rod reaches the target position, instructing the air exhaust system to start air exhaust, and instructing the material analysis structure to start material analysis;
and the storage unit is used for storing the vehicle length of the material transport vehicle, the corresponding relation between the vehicle length and the sampling position and/or a material analysis result.
(III) advantageous effects
The invention provides a sample machine and a control method and a control system thereof, wherein a sample structure comprises: but the level to the locomotive that removes, through the lead screw structure with the sample pole that the locomotive links to each other, the sample pole with air exhaust system the material analysis structure links to each other, control system with the sample structure links to each other to the length of the car according to material transport vechicle confirms at random the sample position of sample structure. In the control, the length of the material transport vehicle is obtained; matching according to the corresponding relation between the vehicle length and a preset vehicle length-sampling position, and randomly determining the position of the moving vehicle, the moving distance of the sampling rod in the horizontal direction and the moving distance in the vertical direction; the synchronous driving motor drives the moving vehicle to move to the target position of the moving vehicle on the guide rail, the horizontal lead screw structure drives the sampling rod to move to the target position of the sampling rod in the horizontal direction, and then the vertical lead screw structure drives the sampling rod to move to the target position of the sampling rod in the vertical direction; and after the sampling rod reaches the target position, the air exhaust system starts to exhaust air, and the material analysis structure starts material analysis. The sample structure passes through the drive of lead screw structure, and the motor drives the lead screw and rotates, and the removal guide block on the lead screw produces linear motion, drives the sample pole and removes about going on in the level, and at the vertical motion that carries on, this kind of drive mode is changeed in the control, has improved the removal precision of sample pole, and the sample position is more accurate. In addition, the driving mode can receive a feedback signal in time when encountering impact load during moving and stop emergently, thereby reducing impact damage. On the other hand, after the control system can determine the sampling area according to the length of the vehicle, the plurality of sampling rods can carry out random sampling in the sampling area, the effect of randomly extracting materials is achieved, and the accuracy of material testing results is improved.
Drawings
FIG. 1 is a schematic diagram of a sample canopy structure of a sample machine of the present invention;
FIG. 2 is a schematic side view of the structure of FIG. 1;
FIG. 3 is a schematic structural view of a moving vehicle of the sampling machine of the invention;
FIG. 4 is an exploded view of the lead screw structure of the present invention;
FIG. 5 is a schematic view of the assembled structure of FIG. 4;
FIG. 6 is a schematic view of the structure of the lead screw and the sample rod of the present invention;
fig. 7 is a schematic overall structure diagram of the sample machine of the invention;
fig. 8 shows a movement mode of the sample machine in operation.
Note: the automatic sampler comprises a support frame 1, a shed cover 2, a horizontal guide rail 3, a horizontal guide rail fixed square steel 4, a lead screw horizontal guide rail supporting steel frame connector 5, a power output shaft 6, a synchronous driving motor 7, a driving motor 8, a coupler 9, an end support 10, a bottom plate 11, a tail support 12, a lead screw 13, a linear nut 14, a balance rod 15, a movable guide block 16, a sampling rod 17, a suction pipe 18, a screw auger discharger 19, a buffer hopper 20, a distributor 21, a residual grain hopper 22, a detection material box 23, a dust remover 24, a negative pressure vortex booster fan 25, an electric cabinet 26, an operation table 27 and a moving vehicle 28.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In order to solve the problems of fixed position, accurate control and maintenance cost reduction in the sampling process, the invention provides
A sampler, as shown in fig. 1-7, comprising: sampling structure, material analysis structure, clout processing architecture and control system, after the material transport vechicle that loads the material arrived designated position, sampling structure removed the target position according to control system's control signal and carries out the sampling to send into material analysis structure with inspiratory material and weigh, the analysis, the clout is collected through clout processing architecture.
Wherein, the skewing structure includes: the sampler comprises a moving vehicle, a driving structure of the moving vehicle, a sampling rod and a driving structure of the sampling rod, wherein the sampling rod is connected to the moving vehicle, moves horizontally along with the moving vehicle and reaches a target position of the moving vehicle. The driving structure of the sampling rods drives the sampling rods to approach or separate from each other (reverse motion when the sampling is finished and restored), and after the sampling rods reach the position, the sampling rods move vertically downwards (reverse motion when the sampling is finished and restored), the driving structure of the sampling rods is formed by combining a lead screw, a movable guide block 16 and the like, and the vertical lead screw structure is connected with the sampling rods 17. The sampling rod is connected with the air extraction system and the material analysis structure, and the sampling rod 17 sucks materials into the sampling rod in an air suction mode and conveys the materials into the material analysis structure. In order to realize the movement of the moving vehicle and the sampling rod, the control system is connected with the sampling structure so as to determine the sampling position of the sampling structure according to the vehicle length of the material transport vehicle and send a specific movement instruction.
In the sample structure, two locomotive set up respectively on the level that corresponds is to guide rail 3, and the level is erect on the regional support of sample to the guide rail, and the both sides of the regional support of sample are respectively perpendicular to setting up support frame 1, and the upper portion of two support frame 1 opposite sides sets up this level to guide rail 3, and canopy 2 is still erect to the top of two support frames 1, and support frame 1 and canopy 2 enclose the region for the sample region. Canopy cover 2 can play the effect that keeps out the wind and hide rain, optimizes the sample operational environment to it is impaired after driving motor (servo motor), the spacing sensor drenching with the rain on avoiding the locomotive, can realize continuity of operation simultaneously.
The horizontal guide rail 3 is preferably a steel rail, the horizontal inclination is not more than 1/1000 of the length of the rail, and the installation in the span direction allows the deviation of +/-2 mm; the joints of the guide rails are connected by long hole rail clamping plates to improve the convenience of horizontal adjustment, and gaskets are arranged below the guide rails to improve the convenience of vertical adjustment. The two horizontal guide rails 3 are parallel to each other, and the joints are arranged in a staggered distance.
One or more moving vehicles can be arranged on each horizontal guide rail 3, and each moving vehicle is provided with one or more sampling rods, so that the effect of multi-position simultaneous sampling is formed, the sampling efficiency is improved, multi-position random sampling is realized, the sampling randomness is improved, and the material analysis result is more accurate. When each horizontal guide rail 3 is respectively provided with a moving trolley, each moving trolley is connected with two sampling rods, 4-position simultaneous sampling can be realized, and if each horizontal guide rail 3 is provided with 2 moving trolleys, 8-position random sampling can be realized. When each guide rail is provided with a moving vehicle, each moving vehicle is connected with 3 sampling rods, and 6-position simultaneous sampling can be realized. In other embodiments, the number of mobile carts may be increased, as may the number of horizontal rails, with different carts moving on corresponding rails.
The bottom of the moving vehicle is provided with a walking structure (such as a walking wheel), and the walking structure is provided with a synchronous driving motor. The method specifically comprises the following steps: the synchronous driving motor 7 is arranged on the moving vehicle, and the walking structure (such as walking wheels) is connected with the power output shaft 6 of the synchronous motor. The synchronous driving motor drives the walking structure to roll on the horizontal guide rail, so that the moving vehicle can move in the horizontal direction.
On the locomotive, the fixed square steel 4 of level to the guide rail sets up respectively in the both ends of locomotive with the pavement that is used for the maintenance personal to walk, reaches the effect of balanced counter weight. The upper part of the horizontal guide rail fixing square steel 4 is provided with a support seat connected with a lead screw structure of the sampling rod, and in addition, a horizontal guide rail supporting steel frame combining part 5 is arranged to connect a moving slide block of the horizontal guide screw, so that the moving vehicle can conveniently slide along with the moving slide block.
In the invention, the driving structures of the horizontal movement and the vertical up-and-down movement of the sampling rods are respectively driven by adopting a screw rod structure.
The lead screw structure includes: the supporting seat (including tip supporting seat, afterbody supporting seat, can also include the bottom plate), driving motor 8 (step motor), shaft coupling 9, lead screw 17, balancing pole 15 and removal guide block 16, driving motor 8 is fixed in bottom plate 11 through the motor support, and the motor passes through shaft coupling 9 and is connected with lead screw 17. The balancing pole 15 is fixedly arranged on the end portion supporting seat and the tail portion supporting seat, is parallel to the lead screw and is located on the side edge of the lead screw 17, and the lead screw 17 penetrates through the supporting seats. The two balancing rods 15 are respectively arranged on two sides of the screw rod 17 to form a stable structure, so that a balancing effect is achieved, the screw rod 17 is enabled to be stable, and the movable guide block 16 can slide on a straight line. The balance bar 15 slidably passes through the moving guide 16; the linear nut 14 is sleeved on the lead screw 17 and is fixedly connected with the movable guide block 16. And a frequency converter of the driving motor is in signal connection with the control system.
A supporting seat or a bottom plate 11 of the vertical lead screw structure is fixedly connected with a moving guide block of the horizontal lead screw structure; the moving guide block 16 of the vertical screw structure is fixedly connected with the sampling rod. Therefore, the vertical lead screw structure is arranged on the horizontal lead screw structure, and when the horizontal lead screw structure drives the sampling rods to move, the vertical lead screw structure moves synchronously. When the sampling rod is driven to move by the vertical lead screw structure, the horizontal lead screw structure is fixed.
During operation, the two modes are as follows: mode 1, the locomotive moves horizontally, then the sample rod moves horizontally, and finally the sample rod moves vertically. Mode 2, the sampling rod moves horizontally, then the moving vehicle moves horizontally, and finally the sampling rod moves vertically, see fig. 8. The electric control system (belonging to the control system) supplies power to the servo motor (namely, the driving motor 8 or replaced by the stepping motor), the electric control system starts the servo motor of the horizontally moving screw rod structure, the horizontal moving screw rod is driven to rotate by the coupler 9 connected with the servo motor, and the moving slide block matched with the screw rod starts to move at the same time to drive the sampling rod to horizontally move. After the sampling rod horizontally reaches the target position, the servo motor drives the travelling structure of the moving vehicle to move on the horizontal guide rail. After the moving vehicle reaches the target position, the electric control system starts the screw rod servo motor of the vertical screw rod structure of the sampling rod, when the servo motor in the vertical direction (namely the driving motor 8 or replaced by a stepping motor) is started, the sampling rod 17 moves up and down along with the moving guide block 16 connected with the sampling rod, and sampling is carried out after the sampling rod reaches the target position, so that sampling operation is completed. After the sampling is finished, the sampling rod and the moving vehicle reach the initial position by reverse movement.
The purpose of using a stepping motor or a servo motor is to obtain more position information and signal feedback of motor operation in the aspect of electrical control, so that the control system can form closed-loop control under the condition that a sensor is not added. The control is more accurate by using a servo motor or a stepping motor, the running position can be obtained at any time, the motor is not easy to cause danger when the vehicle is stopped due to the self-provided band-type brake and the encoder, and the rotating speed and the whole running process of the motor are controllable and adjustable, so that the control system is more flexible in programming.
The movement in the horizontal and vertical directions and the control precision of the sampling operation can be more accurate by utilizing the lead screw structure to be matched with the driving of the motor, in addition, the position information of the stop of the lead screw can be fed back to an electric control upper computer system (the upper computer system belongs to a control system), and the sampling operation can form a closed-loop control system. And the driving mode of the screw rod structure is adopted, so that the structure of the whole sampling machine is relatively simple, various requirements of the sampling machine on the aspects of running stability, stability and transmission accuracy are met, and the advantage in the aspect of maintenance-free is obvious. Compared with a chain structure and a gear rack mechanism, the chain structure has the advantages of lower cost, simpler structure, low failure rate and the like.
When the screw structure is specifically installed, the following steps can be adopted: firstly, mounting a bottom plate 11 and a motor support; secondly, installing a servo motor or a stepping motor; thirdly, mounting threaded holes are formed in the bottom plate 11 and the square tube on the trolley in a matched mode, and the square tube is fixedly mounted; fourthly, mounting the end part support 10 according to the length of a proper position for mounting the coupler 9, matching a threaded hole of a base, and mounting the coupler 9 and the end part base; fifthly, mounting a bearing and a check ring; sixthly, mounting a balance rod 15 and a lead screw; seventhly, sleeving a screw nut (also called a linear nut 14) on the screw 17; eighthly, mounting a movable guide block 16, a linear bearing retainer ring and the like; the ninth step, fixedly connecting the linear nut 14 with the movable sliding block; tenth, mounting the tail support 12, a bearing retainer ring and the like; eleventh, mounting a connecting support; and step twelve, installing a housing, matching and installing a threaded hole for fixing the housing, and fixing firmly. And finally, electrifying to test whether the sliding block moves to have the problems of interference, speed, and the like, and making corresponding adjustment.
Various components that serve as support structures, such as base plate 11, end mounts 10, tail mounts 12, etc., may be fabricated as a unitary structure in some cases.
The invention also provides a control method of the sampling machine, which comprises the following steps:
acquiring the length of a material transport vehicle;
matching according to the corresponding relation between the vehicle length and a preset vehicle length-sampling position, and randomly determining the position of the moving vehicle, the moving distance of the sampling rod in the horizontal direction and the moving distance in the vertical direction;
the synchronous driving motor drives the moving vehicle to move to the target position of the moving vehicle on the guide rail, the horizontal lead screw structure drives the sampling rod to move to the target position of the sampling rod in the horizontal direction, and then the vertical lead screw structure drives the sampling rod to move to the target position of the sampling rod in the vertical direction;
after the sampling rod reaches the target position, the air exhaust system starts to exhaust air, and the material analysis structure starts material analysis.
In the method, the identification of the vehicle and the extraction of the width information of the vehicle length are carried out, and for the electric program, based on the vehicle length information, the electric control system can randomly determine sampling points according to the vehicle length and then sample. The position of the sample is different for different car lengths. In addition, the sampling point requirement of the same vehicle length set by the program is random, so that the license plate and the garage information are very important for program control, and the sampling point of the sampling vehicle needs to be inquired after sampling is finished, and the sampling time and the sampling quantity of the day are related.
The program operation control part of the multi-rod sampling machine is the most important part in identifying the length and the width of the vehicle, and when the step of acquiring the length of the material transport vehicle is executed, four methods can be used for different embodiments,
the method 1 is realized by a sensor distance measurement mode (the scheme is most economical and simple); the method 2 is characterized in that the size of a vehicle in the operation area is converted by a software program through a video monitoring system installed in the operation area (the scheme is more suitable for the scheme which is also the current main pushing scheme), a picture is taken from a vehicle video shot by cameras through cameras installed around, and then the length and the width of the vehicle can be measured by a computer program according to the coordinate relation and the scale relation. The technology for acquiring the vehicle length and the vehicle money can be realized by the prior art. And 3, scanning the vehicles in the working area by using the three-dimensional laser scanner to obtain the coordinate outline and size information of the vehicles (the scheme is most expensive and accurate and is not influenced by weather and environmental factors). And 4, inputting label information by a driver or a worker, and acquiring the label information of the externally input material transport vehicle by the control system, wherein the label information comprises: the vehicle number and/or vehicle type; and the control system determines the length and/or the depth of the hopper of the material transport vehicle according to the matching relationship between the label information and the preset length.
In the corresponding relation of the car length and the sampling positions, one car length corresponds to a plurality of sampling positions; then, matching according to the car length and a preset car length-sample position corresponding relation, and randomly determining the position of the moving car, the moving distance of the sample rod in the horizontal direction and the moving distance in the vertical direction comprises:
determining all corresponding sampling positions according to the vehicle length; randomly extracting sampling positions with the same number as the number of the sampling rods from all the corresponding sampling positions; the sampling positions are reasonably distributed to sampling rods on different moving vehicles; then, according to the extracted sample position and the initial positions of the moving vehicle and the sample rods, the position of the moving vehicle, the moving distance of the sample rods in the horizontal direction and the moving distance in the vertical direction are determined.
At present, the general solution for randomly extracting sampling positions with the same number as that of sampling rods is that after vehicle information is distinguished, two sampling rod moving trolleys work in respective working areas, and through assigning values (1m, 1.5m, 2m, 2.5m and the like) to Y parameters and assigning values (0.5m, 1m and the like) to X parameters, the program can realize sampling work of randomly changed different point positions when vehicles with the same 13.5m reach the working areas. Therefore, personnel intervention is mainly prevented, grains which are set in the area by related personnel in advance are prevented from being sampled at fixed points, the fact that the grains detected from the fixed-point sampling to a laboratory are not representative is avoided, and accuracy is poor.
When the determined sampling positions are reasonably distributed to the sampling rods of different moving vehicles, the sampling rods can be distributed according to the service areas of the different sampling rods, such as: the movement of the multi-rod sampling machine is divided into 1, moving vehicles moving back and forth in the length direction, and the two moving vehicles are divided into areas with 6.75 meters; 2. the sampling rod moves in the left-right direction in the width direction, the two horizontally moving lead screw mechanisms are divided into areas with 1.6 meters, the sampling rod in the 3 and vertical directions moves up and down, and the two independent vertical lead screws can move up and down for 3 meters.
A specific embodiment of a control method is given below:
before a vehicle drives into the shed of the sampling machine, vehicle license plate information and vehicle length and width information are automatically or manually input; the vehicle is parked after arriving at the position of the designated operation area after driving in; the voice prompt automatically prompts a driver to get off the vehicle and waits for the completion of the operation in the waiting area; the camera shoots the vehicle and automatically identifies the width of the vehicle length; the electric control system automatically starts sampling operation according to the vehicle length information; (one steel frame awning contains 2 trolleys, each responsible for the general area, one trolley has 2 sampling rods 17, 4 sampling rods 17 in total); the vortex booster fan 25 in the sampling operation chamber starts to extract the detection sample grains under negative pressure, and sampling can be completed after operation for 5-10 s; the extracted grains pass through the material suction pipe 18, reach the buffer hopper 20 through the screw discharger 19 of the sand-lock type screw, then pass through the distributor 21 with the specification of 1/8, wherein 1 part of the grains directly flow into the inspection material box 23 of the detection laboratory, and the rest 7 parts of the grains flow into the residual grain hopper 22 and then enter the residual woven bag. Wherein the upper part of the screw discharger 19 is connected, and the dust remover 24 provides wind power through the negative pressure vortex booster fan 25. An electric cabinet 26 and an operation table 27 are also provided in the detection laboratory.
Corresponding to the control method, the invention also provides a control system of the sample machine, which comprises the following steps:
the acquisition unit is used for acquiring the length of the material transport vehicle;
the matching unit is used for matching according to the corresponding relation between the vehicle length and a preset vehicle length-sampling position, and determining the horizontal traveling distance of the moving vehicle and the vertical descending distance of the sampling rod;
and the storage unit is used for storing the corresponding relation of the vehicle length, the vehicle length-sampling position and/or the material analysis result of the material transport vehicle.
The invention uses the lead screw sliding table to control the movement precision of the sampling rod; the frequency converter is used for controlling and reducing impact load and brake sliding field in the fore-and-aft movement process of the sampling trolley; and the cutting and moving positions of the sampling rod are more accurate by using a private clothes or a stepping motor. In the aspect of control, the control system is more intelligent in the aspects of intellectualization and external interfaces, the system can be compatible with an access control system and a weighing system of a grain depot area, a multifunctional platform centralized function is achieved, and in addition, video images, vehicle information, operation cuttage point positions, weighing weight and other information of the system can be inquired afterwards. The method can inquire the point position of the sample, the kilogram number of the sample, the result of the sample test and the like in a certain day and a certain vehicle.
In addition, it should be understood by those skilled in the art that in the specification of the embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the embodiments of the invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, to simplify the disclosure of embodiments of the invention and to aid in the understanding of one or more of the various inventive aspects.
However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed embodiments of the invention require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of an embodiment of this invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A sampler, comprising: sample structure, material analysis structure, surplus grain processing structure and control system, the sample structure includes: but the level to the locomotive that removes, through the lead screw structure with the sample pole that the locomotive links to each other, the sample pole with air exhaust system the material analysis structure links to each other, control system with the sample structure links to each other to the length of the car according to material transport vechicle confirms at random the sample position of sample structure.
2. A sampler according to claim 1, wherein the skewer structure further comprises a horizontal guide for movement of the carriage, the horizontal guide being provided to a skewing area rack.
3. The sampler according to claim 1, wherein the travelling structure of the carriage is provided with a synchronous drive motor.
4. A sampler as claimed in any one of claims 1 to 3, wherein the lead screw structure comprises: the supporting seat of the horizontally driven screw rod structure is fixedly connected with the moving vehicle, and the supporting seat of the vertically driven screw rod structure is fixedly connected with the moving guide block of the horizontally driven screw rod structure; the movable guide block of the vertically up-and-down driving screw rod structure is fixedly connected with the sampling rod.
5. The sample machine of claim 4, wherein the lead screw structure comprises: the support seat, the driving motor, the coupler, the lead screw and the movable guide block, wherein the driving motor is fixed on the support seat through a motor support, and the motor is connected with the lead screw through the coupler;
the linear nut is sleeved on the screw rod and fixedly connected with the movable guide block.
6. The sample machine of claim 4, wherein the lead screw structure further comprises: the balance rod is parallel to the lead screw and is positioned on the side edge of the lead screw; and the balance rod is fixedly arranged on the supporting seat and can pass through the movable guide block in a sliding manner.
7. A method of controlling a sampler as claimed in any one of claims 1 to 6 comprising:
acquiring the length of the material transport vehicle;
matching according to the corresponding relation between the vehicle length and a preset vehicle length-sampling position, and randomly determining the position of the moving vehicle, the moving distance of the sampling rod in the horizontal direction and the moving distance in the vertical direction;
the synchronous driving motor drives the moving vehicle to move to the target position of the moving vehicle on the guide rail, the horizontal lead screw structure drives the sampling rod to move to the target position of the sampling rod in the horizontal direction, and then the vertical lead screw structure drives the sampling rod to move to the target position of the sampling rod in the vertical direction;
and after the sampling rod reaches the target position, the air exhaust system starts to exhaust air, and the material analysis structure starts material analysis.
8. The control method of claim 7, wherein the obtaining the length of the material handling vehicle comprises: gather the image information of material transport vechicle, image information includes: video or pictures; extracting basic information of the material transport vehicle according to the image information, wherein the basic information comprises: car number, car type, car length, and/or car hopper depth;
or the like, or, alternatively,
the obtaining of the vehicle length of the material transport vehicle comprises: the method includes the steps of obtaining label information of an externally input material transport vehicle, wherein the label information comprises: the vehicle number and/or vehicle type; and determining the vehicle length and/or the depth of a vehicle hopper of the material transport vehicle according to the matching relationship between the label information and the preset vehicle length.
9. The control method according to claim 7 or 8, wherein in the truck length-sampling position correspondence relationship, one truck length corresponds to a plurality of sampling positions; then the process of the first step is carried out,
the step of matching according to the car length and a preset car length-sample position corresponding relation, and randomly determining the position of the moving car, the moving distance of the sample rod in the horizontal direction and the moving distance in the vertical direction comprises the following steps:
determining all corresponding sampling positions according to the vehicle length;
randomly extracting sampling positions with the same number as the number of the sampling rods from all the corresponding sampling positions;
and determining the position of the moving vehicle, the moving distance of the sampling rod in the horizontal direction and the moving distance in the vertical direction according to the extracted sampling position and the initial positions of the moving vehicle and the sampling rod.
10. A control system for a sampler as claimed in any one of claims 7 to 9 comprising:
the acquisition unit is used for acquiring the length of the material transport vehicle;
the matching unit is used for matching according to the corresponding relation between the vehicle length and a preset vehicle length-sampling position, and randomly determining the position of the moving vehicle, the horizontal moving distance and the vertical moving distance of the sampling rod;
an instruction unit to generate and issue instructions, the instructions comprising: the synchronous driving motor drives the moving vehicle to move to the target position of the moving vehicle on the guide rail, the horizontal lead screw structure drives the sampling rod to move to the target position of the sampling rod in the horizontal direction, and then the vertical lead screw structure drives the sampling rod to move to the target position of the sampling rod in the vertical direction; after the sampling rod reaches the target position, instructing the air exhaust system to start air exhaust, and instructing the material analysis structure to start material analysis;
and the storage unit is used for storing the vehicle length of the material transport vehicle, the corresponding relation between the vehicle length and the sampling position and/or a material analysis result.
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| CN202111078560.5A CN113720631A (en) | 2021-09-15 | 2021-09-15 | Sampling machine and control method and control system thereof |
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