CN110433904B - High-precision resistance type grain intelligent moisture detector - Google Patents
High-precision resistance type grain intelligent moisture detector Download PDFInfo
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- CN110433904B CN110433904B CN201910747164.3A CN201910747164A CN110433904B CN 110433904 B CN110433904 B CN 110433904B CN 201910747164 A CN201910747164 A CN 201910747164A CN 110433904 B CN110433904 B CN 110433904B
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- rotating roller
- adjusting box
- worm
- fixedly connected
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/06—Crushing or disintegrating by roller mills with two or more rollers specially adapted for milling grain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/04—Friction
Abstract
The invention belongs to the technical field of moisture detectors, and particularly relates to a high-precision resistance type grain intelligent moisture detector which comprises a detector, an adjusting device and a controller, wherein the detector is connected with the controller through a cable; the adjusting device comprises a first adjusting box, a second adjusting box, a first rotating roller, a second rotating roller, an electric push rod, a motor and a worm; the surfaces of the first rotating roller and the second rotating roller are rotatably sleeved with first lantern rings; the side wall of the groove of the inserted link is fixedly connected with a rubber layer; an air passage is formed in the rubber layer; the invention realizes intelligent adjustment of the gap between the crushing rollers so as to be suitable for adjustment of different crushing degrees of grains, has high adjustment precision, realizes mechanization of the adjustment process, avoids the problems of complicated steps and manpower and material waste caused by manual replacement of the crushing rollers, can reduce the vibration frequency and amplitude of the crushing rollers, and improves the crushing precision of grains and the detection precision of a moisture detector.
Description
Technical Field
The invention belongs to the technical field of moisture detectors, and particularly relates to a high-precision resistance type grain intelligent moisture detector.
Background
The technologies for detecting moisture in grains are generally classified into direct methods and indirect methods. The direct method is to directly remove the moisture in the grain by drying or chemical method to detect the absolute moisture content of the sample. The direct method has the advantages of high detection precision and suitability for laboratory detection, and has the defects of long detection time and incapability of realizing rapid and online monitoring, thereby being difficult to meet the requirements of modern production on speed and continuity. The indirect method is a method of detecting a physical quantity related to moisture, and mainly includes resistance moisture measurement, nuclear magnetic resonance method, capacitance moisture measurement, and infrared moisture measurement. Traditional grain moisture on-line measuring device mainly utilizes indirect method such as resistance moisture survey, electric capacity moisture survey etc. combines simultaneously to prevent that sensor assembly, the frequency/voltage conversion circuit that has, multichannel signal conversion circuit, multichannel gain control circuit, host computer, printer, signal cable etc. of blocking up device, signal transmitter constitute, has tentatively realized grain stoving in-process online, real-time, synchronous, multiple spot moisture detection.
In resistance-type cereal moisture detector, its detection module embeds has the module that rolls, rolls the setting of module, the moisture content of the article of surveying that can more accurate detection.
In the existing rolling module, a narrow rolling wheel and a wide rolling wheel are fixedly arranged in a shell, when materials enter the rolling die set from the feeding hole, the rolling die set performs the operation of grinding the materials, and generally, when the moisture content of the materials is detected, the diameter structure of each material is different, after the rolling wheels are replaced, the rolling wheels cannot be accurately positioned due to the fixed arrangement of the rolling wheels, so that even if the corresponding rolling wheels are replaced, the accurate detection cannot be realized due to the fact that the gaps among the rolling wheels and the material diameter are not suitable, meanwhile, the process of replacing the rolling wheels is complex, manpower and material resources are wasted, meanwhile, the center of the prior art is also provided with a technology for adjusting the clearance between the rolling wheels, but after adjusting, the rolling wheel easily produces the vibration at the cereal in-process that rolls, seriously influences the crushing precision and the crushing degree of consistency of cereal, leads to moisture to detect the precision reduction.
Disclosure of Invention
In order to make up for the defects of the prior art, solve the problems that the rolling wheel replacement step is complex, manpower and material resources are wasted, the adjustable rolling wheel generates vibration in the process of crushing grains after the adjustment is finished, the grain crushing precision is low, and the water detection precision is low due to poor crushing uniformity, the invention provides the high-precision resistance type grain intelligent water detector.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-precision resistance type intelligent grain moisture detector which comprises a detector, an adjusting device and a controller, wherein the detector is connected with the controller through a cable; the adjusting device is used for adjusting the distance between the crushing rollers in the detector; the adjusting device comprises a first adjusting box, a second adjusting box, a first rotating roller, a second rotating roller, an electric push rod, a motor and a worm; the electric push rod is fixedly connected in the detector, the driving end of the electric push rod is fixedly connected with a motor, the driving end of the motor is fixedly connected with a worm, and the worm is in a conical design; the surface of the motor is fixedly connected with a sliding block, the sliding block slides in a sliding groove formed in the inner wall of the detector to prevent the motor body from rotating, and the motor and the electric push rod are both electrically connected with the controller; the first adjusting box and the second adjusting box are fixedly connected to the inner wall of the detector; one ends of the first rotating roller and the second rotating roller penetrate through the first adjusting box and are connected to the inner wall of the second adjusting box in a sliding mode, and the other ends of the first rotating roller and the second rotating roller are fixedly connected with the crushing roller respectively; worm gears are fixedly sleeved on the partial surfaces of the first rotating roller and the second rotating roller between the first adjusting box and the second adjusting box, and the worm penetrates between the two worm gears and is meshed with the worm gears; the during operation, move down through controller control electric putter, because the worm shape is the toper, the worm moves down the in-process makes first live-rollers and second live-rollers remove mutually, thereby realize crushing roller's clearance grow, controller control worm rebound, make crushing roller relative movement, thereby realize that crushing roller's clearance diminishes, distance between the accurate control crushing roller through the controller, in order to be applicable to the regulation of the different crushing degree of cereal, and adjust the precision height, adjust the completion back, rotate through controller control motor, drive the worm wheel through the worm and rotate, thereby make crushing roller rotate, simultaneously adjustable crushing roller's rotational speed.
Preferably, the surfaces of the first rotating roller and the second rotating roller are respectively sleeved with a first lantern ring in a rotating manner; the surface of the worm is rotatably sleeved with a second lantern ring, and the second lantern ring can rotate relative to the worm and moves along with the up-and-down movement of the worm; the surface of the second lantern ring is fixedly connected with a fixed rod, two hinged rods are hinged below the other end of the fixed rod, and the hinged rods are respectively hinged to the surfaces of the corresponding first lantern rings; during operation, the worm makes the hinged rod swing back to back through the second lantern ring and dead lever in the downward movement in-process of worm, the back to back removal of cooperation first live-rollers and second live-rollers, the multiple spot through first lantern ring realization first live-rollers and second live-rollers is fixed, avoid only making first live-rollers and second live-rollers remove through worm wheel and worm and lead to first live-rollers and second live-rollers head and the tail displacement range inequality, lead to the regulation failure in crushing roller clearance, can lead to crushing roller striking each other seriously, damage moisture detector, the worm shifts up the in-process simultaneously, make the hinged rod swing relatively, make first live-rollers and second live-rollers surface worm wheel mesh with the worm all the time, prevent that the worm wheel worm from taking place the tooth phenomenon, improve moisture detector life.
Preferably, third lantern rings are rotatably sleeved on partial surfaces of the first rotating roller and the second rotating roller in the first adjusting box and the second adjusting box, two moving plates are arranged between every two adjacent third lantern rings, and the moving plates are slidably connected into a limiting sliding groove in the surface of the moving plate through a limiting sliding block, so that the first rotating roller and the second rotating roller are driven to move through the third lantern rings in the moving process of the moving plates; uniformly arranged springs are fixedly connected between the side surface of one side of the moving plate, which is opposite to the side surface of the moving plate, and the corresponding inner walls of the corresponding first adjusting box and the second adjusting box respectively; the during operation, first live-rollers and second live-rollers move the in-process mutually in opposite directions, make the movable plate relative movement, the extrusion spring, elasticity through the spring makes first live-rollers and second live-rollers have the power of relative movement all the time, thereby the cooperation articulated slab realizes that the multiple spot of first live-rollers and second live-rollers is fixed, further prevent that worm wheel and worm from taking place to take off the tooth phenomenon, simultaneously through the elasticity of spring, produce the vibration when can effectively reduce crushing roller and smash cereal, lead to the clearance change between the crushing roller, improve the crushing degree of cereal, it is more even to make cereal smash, improve moisture detector's life simultaneously.
Preferably, a telescopic rod is fixedly connected between the side surfaces of the opposite sides of the two moving plates in the first adjusting box and the second adjusting box; the telescopic rod is divided into an inserting rod and a wrapping rod, and the inserting rod is inserted into the groove of the wrapping rod; during operation, smash the roller at first crushing roller and second and move the in-process relatively or mutually away, can play limiting displacement through the telescopic link, prevent that first live-rollers and second live-rollers migration distance is too big, it is too big to lead to crushing roller to contact each other or smash the clearance between the roller, influence the smashing of cereal, thereby improve the moisture detection progress of cereal, can prevent through the telescopic link simultaneously that the spring extension degree is too big, the elasticity that leads to the spring receives the influence, improve the shock attenuation effect of spring, thereby improve the crushing precision of cereal.
Preferably, the side wall of the groove of the inserted link is fixedly connected with a rubber layer; an air passage is formed in the rubber layer; air bags are fixedly connected between the movable plate and the inner wall of the corresponding first adjusting box or the second adjusting box, the air bags and the springs are alternately arranged, the air bags are communicated with an air passage and outside air, and one-way valves are arranged at the communicated positions; the air passage is communicated with the outside through an air hole, and a control valve is arranged at the communication position and is electrically connected with the controller; when the crushing roller works, the crushing roller vibrates to drive the movable plate to vibrate in the process of crushing grains, so that the air bags are intermittently extruded and released, gas in the air bags is filled into the air passages, the rubber layers expand, the inserted rods are locked, the vibration amplitude and frequency of the movable plate are reduced, the vibration amplitude and frequency of the crushing roller are reduced, meanwhile, after the air pressure in the air passages rises, the air pressure in the air bags rises, the inserted rods are locked through the rubber layers, the high-pressure gas in the air bags is matched, so that the vibration of the movable plate and the crushing roller is reduced, after the gap adjustment of the crushing roller is completed, grains are fed after the motor of the controller is started for a period of time, the vibration generated when the crushing roller crushes the grains can be effectively reduced, the grain crushing precision is improved, the moisture detection precision is improved, when the gap between the crushing rollers needs to be adjusted again, the motor stops, the air pressure in the air passage and the air bag is recovered, the inserted rod is not locked by the rubber layer, the worm is controlled by the controller to move, the worm can move more smoothly, the extrusion force between the worm wheel and the worm is reduced, and therefore the service life of the moisture detector is prolonged.
Preferably, steel balls are uniformly arranged on one side, close to the inserted link, of the air passage in the rubber layer; arc-shaped grooves are uniformly distributed on the surface of the inserted rod, so that the surface of the inserted rod is wavy, and the surface of the inserted rod is rough; when the pneumatic pressure rises in the during operation, because the rubber layer is softer, make the relative inserted bar direction of steel ball remove, form the projection of evenly arranging in the rubber layer surface, insert in the inserted bar surface arc wall, the cooperation rubber layer improves frictional force between rubber layer and the inserted bar to further fixed movable plate reduces vibration frequency and range, improves the crushing precision of cereal and the detection precision of moisture detector.
The invention has the following beneficial effects:
1. according to the high-precision resistance type intelligent grain moisture detector, the worm, the first worm gear rotating roller, the second worm gear rotating roller, the first adjusting box and the second adjusting box are arranged, the electric push rod is controlled by the controller to move up and down, so that the worm is controlled to move up and down, the distance between the first rotating roller and the second rotating roller is adjusted, the gap between the crushing rollers is adjusted to be suitable for adjusting different crushing degrees of grains, the adjusting precision is high, the mechanization of the adjusting process is realized, and the problems that the step of manually replacing the crushing rollers is complicated and manpower and material resources are wasted are solved.
2. The invention relates to a high-precision resistance type intelligent grain moisture detector, which is characterized in that a movable plate, a rubber layer, an air bag, a telescopic rod and a steel ball are arranged, in the process of crushing grains by a crushing roller, the crushing roller vibrates to drive the movable plate to vibrate, so that the air bag is intermittently extruded and released, gas in the air bag is filled into an air passage, so that the rubber layer expands, an inserted rod is locked, the vibration amplitude and frequency of the movable plate are reduced, the vibration amplitude and frequency of the crushing roller are reduced, meanwhile, after the air pressure in the air passage rises, the air pressure in the air bag rises, the inserted rod is locked by the rubber layer, the high-pressure gas in the air bag is matched, so that the vibration of the movable plate and the crushing roller is reduced, meanwhile, the air pressure in the air passage rises, so that the steel ball forms uniformly-arranged bulges on the surface of the rubber, therefore, the movable plate is further fixed, the vibration frequency and amplitude are reduced, and the crushing precision of grains and the detection precision of the moisture detector are improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the adjustment device;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
FIG. 5 is a cross-sectional view C-C of FIG. 3;
FIG. 6 is an enlarged view of a portion of FIG. 5 at D;
in the figure: the device comprises an adjusting device 1, a first adjusting box 11, a second adjusting box 12, a first rotating roller 13, a second rotating roller 14, an electric push rod 15, a motor 16, a worm 17, a sliding block 18, a worm wheel 19, a first collar 2, a second collar 21, a fixed rod 22, a hinged rod 23, a third collar 24, a moving plate 25, an expansion rod 3, an inserted rod 31, a wrapping rod 32, a rubber layer 33, an air passage 34, an air bag 35, a steel ball 36 and an arc-shaped groove 37.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the high-precision resistance-type intelligent moisture detector for grain according to the present invention comprises a detector, an adjusting device 1 and a controller; the adjusting device 1 is used for adjusting the distance between the crushing rollers in the detector; the adjusting device 1 comprises a first adjusting box 11, a second adjusting box 12, a first rotating roller 13, a second rotating roller 14, an electric push rod 15, a motor 16 and a worm 17; the electric push rod 15 is fixedly connected in the detector, the driving end of the electric push rod 15 is fixedly connected with a motor 16, the driving end of the motor 16 is fixedly connected with a worm 17, and the worm 17 is in a conical design; the surface of the motor 16 is fixedly connected with a sliding block 18, the sliding block 18 slides in a sliding groove formed in the inner wall of the detector to prevent the motor 16 from rotating, and the motor 16 and the electric push rod 15 are both electrically connected with the controller; the first adjusting box 11 and the second adjusting box 12 are fixedly connected to the inner wall of the detector; one ends of the first rotating roller 13 and the second rotating roller 14 penetrate through the first adjusting box 11 and are connected with the inner wall of the second adjusting box 12 in a sliding mode, and the other ends of the first rotating roller and the second rotating roller are fixedly connected with crushing rollers respectively; worm wheels 19 are fixedly sleeved on the partial surfaces of the first rotating roller 13 and the second rotating roller 14 between the first adjusting box 11 and the second adjusting box 12, and a worm 17 penetrates between the two worm wheels 19 and is meshed with the worm wheels 19; during operation, through controller control electric putter 15 downstream, because worm 17 shape is the toper, worm 17 downstream in-process makes first live-rollers 13 and second live-rollers 14 move back to back, thereby realize crushing roller's clearance grow, controller control worm 17 moves up, make crushing roller relative movement, thereby realize that crushing roller's clearance diminishes, but the distance between the accurate control crushing roller through the controller, so as to be applicable to the regulation of the different crushing degree of cereal, and adjust the precision height, after the regulation is accomplished, rotate through controller control motor 16, drive worm wheel 19 through worm 17 and rotate, thereby make crushing roller rotate, simultaneously adjustable crushing roller's rotational speed.
As an embodiment of the present invention, the surfaces of the first rotating roller 13 and the second rotating roller 14 are rotatably sleeved with the first collar 2; the surface of the worm 17 is rotatably sleeved with a second lantern ring 21, and the second lantern ring 21 can rotate relative to the worm 17 and moves along with the up-and-down movement of the worm 17; the surface of the second lantern ring 22 is fixedly connected with a fixed rod 22, two hinged rods 23 are hinged below the other end of the fixed rod 22, and the hinged rods 23 are respectively hinged to the surfaces of the corresponding first lantern rings 2; during operation, the hinged rod 23 swings back to back through the second lantern ring 21 and the fixing rod 22 in the downward moving process of the worm 17, the first rotating roller 13 and the second rotating roller 14 move back to back in a matching mode, multi-point fixing of the first rotating roller 13 and the second rotating roller 14 is achieved through the first lantern ring 2, the situation that the grinding rollers collide with each other and damage the moisture detector due to the fact that the first rotating roller 13 and the second rotating roller 14 move only through the worm wheel 19 and the worm 17 and the distance between the first rotating roller 13 and the distance between the second rotating roller 14 and the distance between the first rotating roller 13 and the second rotating roller 14 are different and adjustment of the gap between the grinding rollers fails is avoided, meanwhile, the hinged rod 23 swings relatively in the upward moving process of the worm 17, the worm wheel 19 on the surface of the first rotating roller 13 and the surface of the second rotating roller 14 are meshed with the worm 17 all the time, the tooth disengaging phenomenon of the worm wheel 19.
As an embodiment of the present invention, third collars 24 are rotatably sleeved on partial surfaces of the first rotating roller 13 and the second rotating roller 14 in the first adjusting box 11 and the second adjusting box 12, two moving plates 25 are disposed between two adjacent third collars 24, and the moving plates 25 are slidably connected in limiting sliding grooves on the surfaces of the moving plates 25 through limiting sliding blocks, so that the moving plates 25 drive the first rotating roller 13 and the second rotating roller 14 to move through the third collars 24 in the moving process; uniformly arranged springs are fixedly connected between the side surface of one side of the moving plate 25 opposite to the side surface and the corresponding inner walls of the corresponding first adjusting box 11 and the corresponding second adjusting box 12 respectively; during operation, first live-rollers 13 and second live-rollers 14 move the in-process mutually, make movable plate 25 relative movement, the extrusion spring, the elasticity through the spring makes first live-rollers 13 and second live-rollers 14 have the power of relative movement all the time, thereby cooperation articulated slab realizes that the multiple spot of first live-rollers 13 and second live-rollers 14 is fixed, further prevent that worm wheel 19 and worm 17 from taking place the tooth phenomenon, simultaneously through the elasticity of spring, produce the vibration when can effectively reduce crushing roller and smash cereal, lead to the clearance between the crushing roller to change, improve the crushing degree of cereal, it is more even to make cereal smash, improve moisture detector's life simultaneously.
As an embodiment of the invention, a telescopic rod 3 is fixedly connected between opposite side surfaces of two moving plates 25 in the first adjusting box 11 and the second adjusting box 12; the telescopic rod 3 is divided into an inserting rod 31 and a wrapping rod 32, and the inserting rod 31 is inserted into a groove of the wrapping rod 32; during operation, at first live-rollers 13 and second live-rollers 14 relative or the in-process of moving back to back mutually, can play limiting displacement through telescopic link 3, prevent that first live-rollers 13 and second live-rollers 14 migration distance are too big, it is too big to lead to crushing roller to contact each other or the clearance between the crushing roller, influence the crushing of cereal, thereby improve the moisture detection progress of cereal, simultaneously can prevent through telescopic link 3 that the spring stretch degree is too big, the elasticity that leads to the spring receives the influence, improve the shock attenuation effect of spring, thereby improve the crushing precision of cereal.
As an embodiment of the invention, the side wall of the groove of the insert rod 31 is fixedly connected with a rubber layer 33; an air passage 34 is formed in the rubber layer 33; air bags 35 are fixedly connected between the moving plate 25 and the inner wall of the corresponding first adjusting box 11 or the corresponding second adjusting box 12, the air bags 35 and the springs are alternately arranged, the air bags 35 are communicated with the air passage 34 and the outside air, and one-way valves are arranged at the communicated positions; the air passage 34 is communicated with the outside through an air hole, and a control valve is arranged at the communication position and is electrically connected with the controller; when the crushing roller works, in the process of crushing grains by the crushing roller, the movable plate 25 is driven to vibrate by the vibration of the crushing roller, so that the air bags 35 are intermittently extruded and released, gas in the air bags 35 is filled into the air passages 34, the rubber layers 33 are expanded, the inserting rods 31 are locked, the vibration amplitude and frequency of the movable plate 25 are reduced, the vibration amplitude and frequency of the crushing roller are reduced, meanwhile, after the gas pressure in the air passages 34 rises, the gas pressure in the air bags 35 rises, the inserting rods 31 are locked by the rubber layers 33, the vibration of the movable plate 25 and the crushing roller is reduced by matching with high-pressure gas in the air bags 35, after the gap adjustment of the crushing roller is finished, the controller controls the motor 16 to start for a period of time, grains are introduced, the vibration generated when the crushing roller crushes grains can be effectively reduced, the grain crushing precision is improved, the moisture detection precision is improved, when the, the motor 16 stops, the controller controls the control valve to be opened, so that the air pressure in the air passage 34 and the air bag 35 is recovered, the rubber layer 33 does not lock the inserted rod 31, the controller controls the worm 17 to move, the worm 17 can move more smoothly, the extrusion force between the worm wheel 19 and the worm 17 is reduced, and the service life of the moisture detector is prolonged.
As an embodiment of the invention, the rubber layer 33 is provided with steel balls 36 uniformly arranged on one side of the air passage 34 close to the inserted link 31; arc-shaped grooves 37 are uniformly formed in the surface of the inserted rod 31, so that the surface of the inserted rod 31 is wavy, and the surface of the inserted rod 31 is rough; when the air pressure in the air passage 34 rises, the rubber layer 33 is soft, so that the steel balls 36 move relative to the direction of the inserted link 31, the uniformly distributed bulges are formed on the surface of the rubber layer 33 and inserted into the arc-shaped groove 37 on the surface of the inserted link 31, and the friction force between the rubber layer 33 and the inserted link 31 is improved by matching with the rubber layer 33, so that the movable plate 25 is further fixed, the vibration frequency and amplitude are reduced, and the crushing precision of grains and the detection precision of the moisture detector are improved.
When the device works, the electric push rod 15 is controlled by the controller to move downwards, the worm 17 is in a conical shape, the first rotating roller 13 and the second rotating roller 14 move back to back in the downward movement process of the worm 17, so that the gap of the crushing roller is enlarged, the worm 17 is controlled by the controller to move upwards, so that the crushing roller moves relatively, so that the gap of the crushing roller is reduced, the motor 16 is controlled by the controller to rotate, the worm 17 drives the worm wheel 19 to rotate, so that the crushing roller rotates, the hinged rod 23 swings back to back through the second lantern ring 21 and the fixed rod 22 in the downward movement process of the worm 17, the hinged rod 23 swings relatively in the upward movement process of the worm 17, so that the worm wheel 19 on the surfaces of the first rotating roller 13 and the second rotating roller 14 are always meshed with the worm 17, and the first rotating roller 13 and the second rotating roller 14 move back to back, the movable plate 25 is moved relatively to extrude the spring, the first rotating roller 13 and the second rotating roller 14 always have the force of relative movement through the elasticity of the spring, so that the multipoint fixation of the first rotating roller 13 and the second rotating roller 14 is realized through the cooperation of a hinged plate, the vibration of the crushing roller drives the movable plate 25 to vibrate in the process of crushing grains by the crushing roller, so that the air bags 35 are extruded and released intermittently, the air in the air bags 35 is filled into the air passage 34, the rubber layer 33 is expanded, the inserted rod 31 is locked, after the adjustment of the gaps of the crushing rollers is finished, the motor 16 is controlled by the controller to be started for a period of time, grains are introduced, when the gaps between the crushing rollers need to be adjusted again, the motor 16 stops, the control valve is controlled by the controller to be opened, the air pressure in the air passage 34 and the air bags 35 is recovered, the inserted rod 31 is not locked again by the rubber layer 33, the worm 17 is controlled by the controller, when the air pressure in the air passage 34 rises, the rubber layer 33 is soft, so that the steel balls 36 move relative to the direction of the inserted link 31, and uniformly arranged bulges are formed on the surface of the rubber layer 33 and are inserted into the arc-shaped groove 37 on the surface of the inserted link 31.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A high-precision resistance-type grain intelligent moisture detector comprises a detector, an adjusting device (1) and a controller; the method is characterized in that: the adjusting device (1) is used for adjusting the distance between the crushing rollers in the detector; the adjusting device (1) comprises a first adjusting box (11), a second adjusting box (12), a first rotating roller (13), a second rotating roller (14), an electric push rod (15), a motor (16) and a worm (17); the electric push rod (15) is fixedly connected in the detector, the driving end of the electric push rod (15) is fixedly connected with a motor (16), the driving end of the motor (16) is fixedly connected with a worm (17), and the worm (17) is in a conical design; the surface of the motor (16) is fixedly connected with a sliding block (18), the sliding block (18) slides in a sliding groove formed in the inner wall of the detector to prevent the motor (16) body from rotating, and the motor (16) and the electric push rod (15) are electrically connected with the controller; the first adjusting box (11) and the second adjusting box (12) are fixedly connected to the inner wall of the detector; one ends of the first rotating roller (13) and the second rotating roller (14) are slidably connected to the inner wall of the second adjusting box (12) through the first adjusting box (11), and the other ends of the first rotating roller and the second rotating roller are fixedly connected with crushing rollers respectively; worm wheels (19) are fixedly sleeved on the partial surfaces of the first rotating roller (13) and the second rotating roller (14) between the first adjusting box (11) and the second adjusting box (12), and the worm (17) penetrates between the two worm wheels (19) and is meshed with the worm wheels (19).
2. The high-precision resistance type intelligent grain moisture detector according to claim 1, characterized in that: the surfaces of the first rotating roller (13) and the second rotating roller (14) are sleeved with a first lantern ring (2) in a rotating mode; a second lantern ring (21) is sleeved on the surface of the worm (17) in a rotating mode, and the second lantern ring (21) can rotate relative to the worm (17) and moves along with the up-and-down movement of the worm (17); the surface of the second lantern ring (21) is fixedly connected with a fixing rod (22), two hinged rods (23) are hinged below the other end of the fixing rod (22), and the hinged rods (23) are hinged to the surfaces of the corresponding first lantern rings (2) respectively.
3. The high-precision resistance type intelligent grain moisture detector according to claim 1, characterized in that: third lantern rings (24) are rotatably sleeved on partial surfaces of the first rotating roller (13) and the second rotating roller (14) in the first adjusting box (11) and the second adjusting box (12), two moving plates (25) are arranged between every two adjacent third lantern rings (24), and the moving plates (25) are slidably connected into limiting sliding grooves in the surfaces of the moving plates (25) through limiting sliding blocks, so that the first rotating roller (13) and the second rotating roller (14) are driven to move through the third lantern rings (24) in the moving process of the moving plates (25); and uniformly arranged springs are fixedly connected between the side surface of one side of the moving plate (25) opposite to the side surface and the corresponding inner walls of the corresponding first adjusting box (11) and the corresponding second adjusting box (12).
4. The high-precision resistance type intelligent grain moisture detector according to claim 3, characterized in that: a telescopic rod (3) is fixedly connected between the opposite side surfaces of the two moving plates (25) in the first adjusting box (11) and the second adjusting box (12); the telescopic rod (3) is divided into an inserting rod (31) and a wrapping rod (32), and the inserting rod (31) is inserted into a groove of the wrapping rod (32).
5. The high-precision resistance type intelligent grain moisture detector according to claim 4, is characterized in that: the side wall of the groove of the inserted link (31) is fixedly connected with a rubber layer (33); an air passage (34) is formed in the rubber layer (33); air bags (35) are fixedly connected between the moving plate (25) and the inner wall of the corresponding first adjusting box (11) or the second adjusting box (12), the air bags (35) and the springs are alternately arranged, the air bags (35) are communicated with an air passage (34) and outside air, and one-way valves are arranged at the communicated positions; the air passage (34) is communicated with the outside through an air hole, a control valve is arranged at the communication position, and the control valve is electrically connected with the controller.
6. The high-precision resistance type intelligent grain moisture detector according to claim 5, characterized in that: steel balls (36) which are uniformly arranged are arranged on one side, close to the inserted link (31), of the air passage (34) in the rubber layer (33); arc-shaped grooves (37) which are uniformly distributed are formed in the surface of the inserted rod (31), so that the surface of the inserted rod (31) is wavy, and the surface of the inserted rod (31) is rough.
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