CN214310191U - Monitoring device for impurity rate and breakage rate of grains and grain harvester - Google Patents

Abstract

The utility model relates to a cereal contains monitoring devices of miscellaneous rate, breakage rate, including seed grain sample image device (8), from seed grain lifting transport ware (1) upper end play grain mouth extend to last elephant trunk subassembly (3,5,7) of seed grain sample image device (8), whole car the control unit (41) and image analysis treater (42), seed grain sample image device (8) set up at seed grain lifting transport ware (1) lower extreme, seed grain sample image device (8) and image analysis treater (42) respectively with whole car the control unit (41) signal connection. The utility model also discloses a cereal harvester. The utility model can prevent the grain sample of the grain sample imaging device from being accumulated and blocked except that the grain sample is in the plane position in the photographing area and is in the inclined position at all times; multiple seals are arranged in the grain sample imaging device, so that the situation that a grain sample enters a position between the belt and the tensioning chain wheel to cause blockage is avoided.

Description

Monitoring device for impurity rate and breakage rate of grains and grain harvester

Technical Field

The utility model belongs to the technical field of agricultural mechanical equipment is relevant, specifically a monitoring devices and cereal harvester of cereal trash content rate, breakage rate.

Background

Currently, China is in the high-speed development of the information-based industry, the national requirement for the development of agricultural modernization is more and more urgent, the intellectualization of agricultural mechanical equipment also becomes the mainstream of the future agricultural machinery market, most harvesters on the market are not provided with a device for monitoring the impurity rate and the damage condition of grains in the combine harvester in real time, the damage rate is obtained by manual check and calculation, the impurity rate is calculated by manual weighing, and the information fed back by a checking device can be used for automatic adjustment.

At present, farmers increasingly accept mechanization and intellectualization, but the requirements on the quality of grains are higher and higher, the technical requirements on a manipulator are high for good grain harvesting and clean grain harvesting, and the manipulator is particularly important for monitoring the grain harvesting condition in real time and automatically adjusting the grain harvesting condition.

The prior art CN201820058732.X discloses a combine harvester grain tank grain impurity rate and breakage rate real-time monitoring device, which comprises a grain sample extraction mechanism, an image acquisition device and a data processing and control device, wherein when a movable bottom plate of a sampling hopper is closed, a part of grains entering the grain tank enter the sampling hopper, after the sampling hopper is filled with the grains and reaches a set upper limit of a pressure sensor, a CCD (charge coupled device) camera starts to shoot and acquire a grain static image in the sampling hopper positioned on one side of the side wall of the grain tank, and the shot image is transmitted to the data processing and control device; after data processing and controlling means acquireed the picture, calculate and broken seed grain discernment through miscellaneous surplus area in the image processing method acquireed seed grain, the data of acquireing calculate, obtain the loss rate and contain miscellaneous rate, the sample hopper is full of cereal and reaches pressure sensor and sets for the upper limit, the above-mentioned process of circulation in proper order, the utility model discloses a real-time supervision to the miscellaneous rate of results cereal, percentage of damage. The prior art has the following disadvantages: 1. static shooting cannot be achieved, and dynamic shooting cannot be achieved; 2. shooting is carried out when a certain weight is reached in the grain sample sampling hopper, so that the method has limitation; 3. a gravity sensing device is required, the structure is complex, and the cost is extremely high; 4. the accuracy is low by estimating in a sampling mode.

Based on this, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cereal contains monitoring devices of miscellaneous rate, breakage rate realizes that the harvester operation in-process contains the monitoring of miscellaneous condition and the breakage condition to the crop after the results, reaps for the intellectuality and provides the data support. Because the grain elevator chain harrow has high lifting speed, the grain elevator chain harrow has poor effect when directly shooting grains carried by the grain elevator chain harrow, and the monitoring efficiency can be improved while saving the cost by sampling the grains in the grain elevator.

In order to achieve the above purpose, the technical solution of the present invention is as follows: the utility model provides a monitoring devices of miscellaneous rate, breakage rate of cereal, includes seed grain sample image device, extends to seed grain sample image device's last elephant trunk subassembly, whole car the control unit and image analysis treater from seed grain lifting conveyor upper end grain outlet, seed grain sample image device sets up at seed grain lifting conveyor lower extreme, seed grain sample image device and image analysis treater respectively with whole car the control unit signal connection.

Further, seed grain sample imaging device is including the camera of shooing usefulness and let seed grain show sample show mechanism in front of camera lens, sample show mechanism includes the honeycomb duct, connects grain box, driven wheel post, initiative wheel post and special-shaped belt, the third in honeycomb duct upper portion and the last elephant trunk of last elephant trunk subassembly is connected, and the lower part with connect grain box to be connected, connect the slope of grain box to set up on special-shaped belt in order to let seed grain sample spill on special-shaped belt surface, special-shaped belt is connected on driven wheel post and initiative wheel post, by motor drive.

Further, the profile belt comprises an annular main body part and annular flange parts, and the two flange parts are respectively arranged on two sides of the main body part.

Optionally, the sample display mechanism further comprises a tension roller column and a tension support, the tension roller column is arranged on the tension support, and the position of the tension roller column can be adjusted through a tension stud on the tension support, so that the tension of the profiled belt can be adjusted.

Furthermore, the driving wheel column and the driven wheel column are fixed between two side walls of the seed sample imaging device through a bearing, a bearing end cover and a plurality of bolts, the tensioning wheel column is fixed between two side walls of the seed sample imaging device through a plurality of bolts and gaskets, and the special-shaped belt is tensioned through the tensioning wheel column.

Furthermore, the upper slide pipe assembly comprises a first upper slide pipe, a second upper slide pipe and a third upper slide pipe, the first upper slide pipe is welded on the grain outlet barrel assembly, a sampling port adjusting device is arranged on the first upper slide pipe, and the flow of the grain sample is controlled by adjusting the height of the adjusting plate through a long screw rod; the upper end of the second upper chute is connected with the lower end of the first upper chute through a bolt, a gasket, an elastic pad and a nut, and the lower end of the second upper chute is connected with the grain bin assembly component through a rubber pad; the upper end of the third upper chute is connected with the grain bin assembly component through a rubber pad, and the lower end of the third upper chute is connected with the grain inlet of the grain sample imaging device and communicated with the guide pipe.

Further, the grain sample imaging device is integrally fixed to a punching plate on the grain elevator assembly by bolts, washers, elastic pads and nuts, and is located outside the lower portion of the grain elevator.

Furthermore, the camera is arranged on the camera bracket, the mirror surface of the camera is vertically downward, the camera is parallel to the conveying surface of the special-shaped belt and is positioned at a proper height right above the conveying surface, the height depends on the focusing parameters of the camera, and the grain visual field range above the special-shaped belt meets the sampling requirement when the image is acquired; the camera is connected with the whole vehicle control unit through a wire harness, the whole vehicle control unit is connected with the image analysis processor through the wire harness, and image signals acquired by the camera are transmitted to the image analysis processor in real time.

Further, the camera support is fixed below an upper cover of the grain sample imaging device, the two light supplement lamps are fixed on two sides of the camera support, and the camera is fixed between the two light supplement lamps.

Furthermore, the light supplement lamp is self-adaptive mirror light and is used for providing a high-efficiency and stable light supplement source for the camera, so that the noise interference of a sampling image caused by a dark environment in the closed sampling device is overcome, a high-pixel image meeting the requirement is obtained, and the high-precision monitoring of the impurity content rate and the breakage rate of the grains is realized; the light supplementing lamp is connected to the whole vehicle control unit, and the whole vehicle control unit monitors the real-time harvesting operation state.

Further, right side backplate and left side backplate are equipped with about the dysmorphism belt, and right side backplate, left side backplate hug closely special-shaped belt transport plane, form the first order sealed, and the special-shaped structure of special-shaped belt itself forms the second grade sealed, prevents that the foreign matter from getting into the belt.

Furthermore, the grain outlet side of the special-shaped belt is provided with an inclined grain receiving rubber, the grain receiving rubber is connected with the drainage plate, the drainage plate is connected with the left side wall and the right side wall of the grain sample imaging device through bolts and nuts, so that the grain sample is separated from the special-shaped belt, and the drainage plate forms third-stage sealing with the grain receiving rubber and the special-shaped belt.

Further, a drainage plate of the kernel sample imaging device is connected with a lower slide carriage, and the lower slide carriage is communicated with the lower end of the kernel lift conveyer.

One of the objectives of the present invention is to provide a grain harvester, which includes the above-mentioned monitoring device for grain impurity content and breakage rate.

The utility model discloses for prior art's advantage: 1. dynamic shooting can be realized; 2. shooting is not needed when a certain weight is reached in the grain sample sampling hopper; 3. a gravity sensing device is not needed, the structure is simple, and the cost is low; 4. the grain sample imaging device is arranged at the lower end of the grain elevator, the grain sample is conveyed to the grain sample imaging device through the upper chute assembly, the grain sample is in a plane position in a photographing area, and the grain sample is in an inclined position at all times, so that the continuous movement of the grain sample can be maintained, and the condition of sample accumulation and blockage is avoided; 5. a left guard plate, a right guard plate, a special-shaped belt, a grain receiving rubber and a drainage plate are arranged in the grain sample imaging device, so that the grain samples are in a multi-sealing state in the grain sample imaging device, and the situation that the grain samples enter a space between the belt and a tension chain wheel to cause blockage is avoided; 6. The flange on the profiled belt prevents the kernel sample from falling out of the plane of conveyance of the belt.

Drawings

Fig. 1 is a schematic structural diagram of a device for monitoring trash content and breakage rate of grains according to the present invention.

Fig. 2 is a schematic structural view of a grain sample imaging device of a device for monitoring grain impurity content and breakage rate according to the present invention.

Fig. 3 is a cross-sectional view of a sealing structure of a device for monitoring impurity content and breakage rate of grain according to the present invention, wherein fig. 3(a) is a schematic view of the sealing structure, and fig. 3(B) is a cross-sectional view from B to B of fig. 3 (a).

Fig. 4 is a schematic perspective view of the structure shown in fig. 3.

Figure 5 is a disassembled schematic view of the seal arrangement of the arrangement shown in figure 3.

Fig. 6 is a schematic view of the profile belt configuration of fig. 5.

Fig. 7 is a schematic view of the structure of the grain receiving box of the device for monitoring the impurity content and the breakage rate of grains of the utility model.

Fig. 8 is a schematic view of the assembly relationship between the grain sample imaging devices according to the present invention.

Fig. 9 is a schematic view of the whole structure of the grain harvester of the present invention.

Wherein, 1-a grain elevator, 2-a grain discharging barrel assembly component, 3-a first upper slide pipe, 4-a grain bin assembly component, 5-a second upper slide pipe, 6-a rubber pad, 7-a third upper slide pipe, 8-a grain sample imaging device, 9-a lower slide plate, 10-a punching plate, 11-a vision cover, 12-a camera bracket, 13-a camera fixing seat, 14-a motor, 15-a light filling lamp, 16-a draft tube, 17-a grain baffle plate, 18-a grain receiving box, 19-a driven wheel column, 20-a tensioning bolt, 21-a driving wheel column, 22-a tensioning wheel column, 23-a tensioning support, 24-a special-shaped belt, 241-a main body part, 242-a flange part, 25-a camera and 26-an elevator rotating speed sensor, 27-threshing chamber assembly component, 28-sieve box assembly component, 29-engine assembly component, 30-cleaning shell assembly component, 31-shield assembly component, 32-chopper assembly component, 33-rear transmission shaft assembly component, 34-sundry elevator assembly component, 35-fan assembly component, 36-shaking plate assembly component, 37-reel assembly, 38-header assembly, 39-bridge assembly, 40-cab assembly component, 41-vehicle control unit, 42-image analysis processor, 43-elevator top auger, 44-right side guard plate, 46-left side guard plate, 47-grain receiving rubber and 48-drainage plate.

Detailed Description

The following will further describe the monitoring device for impurity content and breakage rate of grain and the grain harvester according to the present invention with reference to the accompanying drawings 1-9.

In the description of the present invention, it is to be understood that, unless otherwise specified, "a plurality" means two or more; the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

As shown in fig. 1 and 9, the utility model discloses a monitoring devices of miscellaneous rate, breakage rate of cereal, including seed grain sample image device 8, from seed grain lifting conveyor 1 upper end grain outlet extend to seed grain sample image device 8 last elephant trunk subassembly (3,5,7), whole car the control unit 41 and image analysis treater 42, seed grain sample image device 8 sets up at seed grain lifting conveyor 1 lower extreme, seed grain sample image device 8 and image analysis treater 42 respectively with whole car the control unit 41 signal connection.

Grain seed grain of results is from the lower extreme of seed grain lift conveyer 1 to the upper end of seed grain lift conveyer 1, the exit linkage of seed grain lift conveyer 1 goes out grain section of thick bamboo assembly subassembly 2, a part of seed grain sample enters elephant trunk subassembly (3,5,7) and enters into inside seed grain sample imaging device 8, seed grain sample imaging device 8 shoots seed grain sample appearance, the miscellaneous, the damaged information that contains of obtaining seed grain sample, and give whole car the control unit 41 with these information transmission, whole car the control unit 41 gives image analysis processor 42 with information transmission, image analysis processor 42 is to these information analysis backs, feed back the analysis result to whole car the control unit 41, whether operating personnel decide whether to control whole car the control unit 41 to change the action of harvester in view of the above.

As shown in fig. 2, the grain sample imaging device 8 includes a camera 25 for shooting and a sample display mechanism for displaying the grain sample in front of the lens of the camera 25, the sample display mechanism includes a flow guide tube 16, a grain receiving box 18, a driven wheel column 19, a driving wheel column 21 and a special-shaped belt 24, the upper part of the flow guide tube 16 is connected with a third upper chute 7 in the upper chute assembly (3,5,7), the lower part of the flow guide tube is connected with the grain receiving box 18, the grain receiving box 18 is obliquely arranged on the special-shaped belt 24 to allow the grain sample to fall on the surface of the special-shaped belt 24, and the special-shaped belt 24 is connected to the driven wheel column 19 and the driving wheel column 21 and is driven by the motor 14.

As shown in fig. 6, the modified belt 24 includes an annular main body portion 241 and annular flange portions 242, and the two flange portions 242 are respectively provided on both sides of the main body portion 241. The flange 242 prevents the seed grain sample on the main body 241 from falling onto the driven wheel post 19 and the driving wheel post 21.

As shown in fig. 2, the sample display mechanism further includes a tension roller column 22 and a tension support 23, the tension roller column 22 is disposed on the tension support 23, and the position of the tension roller column 22 can be adjusted through the tension stud 20 on the tension support 23, so as to adjust the tension of the profiled belt 24.

As shown in fig. 1, the upper chute assembly (3,5,7) comprises a first upper chute 3, a second upper chute 5 and a third upper chute 7, the first upper chute 3 is welded on the grain discharging barrel assembly 2, a sampling port adjusting device is arranged on the first upper chute, and the height of an adjusting plate is adjusted by a long screw rod to control the flow rate of grain samples; the upper end of the second upper chute 5 is connected with the lower end of the first upper chute 3 through a bolt, a gasket, an elastic pad and a nut, and the lower end of the second upper chute 5 is connected with the grain bin assembly component 4 through a rubber pad 6; the upper end of the third upper chute 7 is connected with the grain bin assembly component 4 through a rubber pad 6, and the lower end is connected with a grain inlet of the grain sample imaging device 8 and communicated with the guide pipe 16.

As shown in fig. 8, the grain sample imaging device 8 is integrally secured to the punch plate 10 on the grain elevator 1 by bolts, washers, elastic washers, and nuts, outside the lower portion of the grain elevator 1.

As shown in fig. 2, the vision cover 11 is installed on the upper cover of the kernel sample imaging device 8, the camera support 12 is installed below the vision cover 11, the camera 25 is installed on the camera support 12, the mirror surface of the camera is vertically downward, and is parallel to the conveying surface of the special-shaped belt 24 and is located at a proper height right above the conveying surface, and the height depends on the focusing parameters of the camera 25, so that the kernel view range above the special-shaped belt 24 meets the sampling requirement when the image is acquired; the camera 25 is connected with the vehicle control unit 41 through a wire harness, the vehicle control unit 41 is connected with the image analysis processor 42 through the wire harness, and image signals acquired by the camera 25 are transmitted to the image analysis processor 42 in real time.

Camera support 12 is fixed in seed grain sample imaging device 8's upper cover below, and two light filling lamps 15 are fixed in camera support 12 both sides, and camera 25 is fixed in between two light filling lamps 15.

The light supplement lamp 15 is adaptive mirror light and is used for providing a high-efficiency stable supplement light source for the camera 25, so that the noise interference of a sampling image caused by a dark environment in the closed sampling device is overcome, a high-pixel image meeting the requirement is obtained, and the high-precision monitoring of the impurity content rate and the breakage rate of the grains is realized; the light supplement lamp 15 is connected to the whole vehicle control unit 41, and the whole vehicle control unit 41 monitors the real-time operation state of the harvester.

As shown in fig. 3-5, the driving wheel column 21 and the driven wheel column 19 are fixed between two side walls of the grain sample imaging device 8 through a bearing, a bearing end cover and a plurality of bolts, the tension wheel column 22 is fixed between two side walls of the grain sample imaging device 8 through a plurality of bolts and gaskets, and the special-shaped belt 24 is tensioned through the tension wheel column 22.

The right side guard plate 44 and the left side guard plate 46 are assembled on the left side and the right side of the special-shaped belt 24, the right side guard plate 44 and the left side guard plate 46 are tightly attached to the conveying plane of the special-shaped belt 24 to form first-stage sealing, and the special-shaped structure of the special-shaped belt 24 forms second-stage sealing to prevent foreign matters from entering the belt.

The grain outlet side of the special-shaped belt 24 is provided with an inclined grain receiving rubber 47, the grain receiving rubber 47 is connected with a drainage plate 48, the drainage plate 48 is connected with the left side wall and the right side wall of the grain sample imaging device 8 through bolts and nuts, so that the grain sample is separated from the special-shaped belt 24, and the drainage plate 48, the grain receiving rubber 47 and the special-shaped belt 24 form third-stage sealing.

And the drainage plate 48 of the kernel sample imaging device 8 is connected with the lower sliding plate 9, and the lower sliding plate 9 is communicated with the lower end of the kernel lift conveyer 1. Lower carriage apron 9 is connected on seed grain lift conveyor 1 through hanging to detain, and it is convenient to dismantle, the utility model discloses a monitoring devices will descend the swift current mouth to increase, prevents its jam.

As shown in fig. 7, the grain receiving box 18 of the present invention is an open drawer structure with a narrow front part and a wide back part, the back part is wider than the front part, the back part is favorable for receiving the grain sample conveyed from the draft tube 16, and the front part is favorable for accurately scattering the grain sample on the middle part of the special-shaped belt 24.

As shown in fig. 9, the utility model discloses a grain harvester, including reel assembly 37, header assembly 38, bridge assembly 39, threshing teeth assembly 27, chopper assembly 32, shake board assembly 36, sieve case assembly 28, fan assembly 35, miscellaneous lift conveyer assembly 34, seed grain lift conveyer assembly 3 and grain case assembly 4 and the utility model discloses a monitoring devices 8 of cereal impurity rate, breakage rate.

The reel assembly 37 is arranged in the oblique upward direction of the header assembly 38, the header assembly 38 is connected with the gap bridge assembly 39 and is arranged right ahead of the gap bridge assembly 39, the threshing chamber assembly 27 is arranged behind the gap bridge assembly 39, the cab assembly component 40 is arranged above the threshing chamber assembly component 27 and the gap bridge assembly 39, the whole vehicle control unit 41 and the image analysis processor 42 are arranged in an auxiliary seat in the cab assembly component 40, the grain tank assembly component 4 is connected with the rear wall of the cab assembly component 40 behind the cab assembly component 40, the elevator top auger 43 and the elevator rotating speed sensor 26 are connected with the grain tank assembly component 4 above the grain tank assembly component 4 through bolts, wherein the right end of the elevator top auger 43 is connected with the grain elevator 1, the engine assembly component 29 is arranged behind the grain tank assembly component 4, is arranged above the cleaning shell assembly component 30 and is connected with the side wall through bolts, rear drive shaft assembly 33 is below cleaning housing assembly 30, through bolted connection between two lateral walls, sieve case assembly 28 is in threshing teeth assembly 27's below, shaking teeth plate assembly 36 is in threshing teeth assembly 27's below, in fan assembly 35's top, fan assembly 35 is in cleaning housing assembly 30's front below, through bolted connection in the frame, chopper assembly 32 passes through bolted connection in the frame at the rear afterbody of whole car, miscellaneous residual lift conveyer assembly 34 passes through bolt and cleaning housing in the lower end, the upper end stretches into inside threshing teeth assembly 27, guard shield assembly 31 covers the outside at the complete machine through the support.

The utility model discloses a typical work flow of cereal harvester and monitoring devices of cereal trash content rate, breakage rate is as follows.

Firstly, the harvester operates, the reel assembly 37 conveys the grain to the header assembly 38, the header assembly 38 cuts and gathers the grain, the material is conveyed to the threshing chamber assembly component 27 through the bridge assembly 39, after the material is threshed and separated by the threshing chamber assembly component 27, most of the straw enters the chopper assembly component 32 to be smashed and returned to the field, the rest sundries and grains fall onto the shaking plate assembly component 36 and the sieve box assembly component 28, the fan assembly component 35 blows and the sieve box assembly component 28 shakes to screen and separate the grains and the sundries by the self weight and the inertia of the crop, most of the sundries are blown out of the vehicle through the fan assembly component 35, part of the sundries enter the sundries elevator assembly component 34 and reenter the threshing chamber assembly component 27 to be threshed and separated, the grains enter the grain box assembly component 4 through the grain elevator assembly component 3, and (5) completing harvesting operation.

When the seeds are conveyed to the grain bin assembly component 4 through the seed elevator 1, the rotating speed of the seed elevator 1 reaches the normal working rotating speed, the motor 14 operates at a constant speed according to the requirement for sampling, the light supplement lamp 15 is turned on, the camera 25 starts to acquire real-time image signals, and the sampling device works normally; when the rotating speed of the grain elevator 1 is lower than the normal working rotating speed or zero, the motor 14 decelerates or stops running, the light supplement lamp 15 is turned off, and the sampling device stops working. When 1 rotational speed of seed grain lifting conveyor is normal, the elephant trunk 3 is gone up through first to the sample detection device, elephant trunk 5 is gone up to the second, elephant trunk 7 is gone up to the third, take out a small amount of appearance grain in seed grain lifting conveyor 1 in succession, and go up the straight swift current grain of elephant trunk, appearance grain passes through honeycomb duct 16 and drops to connecing grain box 18, it has the kinetic energy of the appearance grain of 5mm thick sponge buffering follow honeycomb duct 16 collection to paste above the grain box 18, and connect grain box 18 back wall and monitoring devices back lateral wall to hug closely, the lower extreme that connects grain box 18 both sides is the V font structure of shrink, be convenient for putting together of appearance grain. The current elevator speed value is acquired by the elevator speed sensor 26 and transmitted to the vehicle control unit 41 in real time. The camera 25 shoots a sample grain picture, transmits the sample grain picture to the vehicle control unit 41 for processing, and then transmits the sample grain picture to the image analysis processor 42, and the image analysis processor 42 marks the impurity (mainly straws) and damaged grains of the grains in the image in real time. Wherein, the mark of the impurity content of the grain is mainly to draw the outline of the straw, analyze and calculate the sum of the straw areas in the same image, and the ratio of the sum to the total area of the image is the impurity content of the grain obtained in real time; the damaged kernel is marked by capturing the damaged kernel by an image, analyzing and counting the damaged kernel, and the ratio of the damaged kernel to the total number of the kernels in the image is the kernel damage rate obtained in real time. If the impurity rate and the breakage rate of the grains do not reach the national standard, the impurity rate and the breakage rate are sent to the whole vehicle control unit 41, the whole vehicle control unit 41 integrates the current parameters of the height and the rotating speed of the whole vehicle reel, the height of the header, the rotating speed of the fan, the rotating speed of the separation roller, the angle of a cleaning and screening piece and the like, main influence factors causing the impurity rate and the breakage rate to be unqualified are analyzed and calculated, and electro-hydraulic valves, motors and other mechanisms related to corresponding functional components are adjusted, so that the impurity rate and the breakage rate reach qualified values. Then will break rate and contain on the display screen of miscellaneous rate demonstration in driver's cabin assembly components 40 for the aircraft crew to look over, this detection device has continuity and continuation when the sample, can not appear being interrupted, and this device is with low costs moreover, motor control, the reliability is high.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (9)

1. The monitoring device for the impurity rate and the breakage rate of the grains is characterized by comprising a grain sample imaging device (8), an upper chute assembly (3,5,7) extending from a grain outlet at the upper end of a grain elevator (1) to the grain sample imaging device (8), a whole vehicle control unit (41) and an image analysis processor (42), wherein the grain sample imaging device (8) is arranged at the lower end of the grain elevator (1), and the grain sample imaging device (8) and the image analysis processor (42) are respectively in signal connection with the whole vehicle control unit (41); the grain sample imaging device (8) comprises a camera (25) for shooting and a sample display mechanism for displaying grains in front of a lens of the camera (25), wherein the sample display mechanism comprises a guide pipe (16), a grain receiving box (18), a driven wheel column (19), a driving wheel column (21) and a special-shaped belt (24), the upper part of the guide pipe (16) is connected with a third upper chute (7) in the upper chute assembly (3,5,7), the lower part of the guide pipe is connected with the grain receiving box (18), the grain receiving box (18) is obliquely arranged on the special-shaped belt (24) to enable the grain samples to be scattered on the surface of the special-shaped belt (24), and the special-shaped belt (24) is connected to the driven wheel column (19) and the driving wheel column (21) and driven by a motor (14).

2. The apparatus for monitoring impurity content and breakage rate of grain according to claim 1, wherein said profiled belt (24) includes an annular main portion (241) and an annular flange portion (242), and said two flange portions (242) are respectively disposed on both sides of the main portion (241).

3. The device for monitoring the impurity rate and the breakage rate of grains according to claim 1, wherein the sample display mechanism further comprises a tension pulley column (22) and a tension support (23), the tension pulley column (22) is arranged on the tension support (23), and the position of the tension pulley column (22) can be adjusted through a tension stud (20) on the tension support (23) so as to adjust the tension of the profiled belt (24).

4. The device for monitoring the impurity rate and the breakage rate of the grains according to claim 1, wherein the upper chute components (3,5,7) comprise a first upper chute (3), a second upper chute (5) and a third upper chute (7), the first upper chute (3) is welded on the grain outlet barrel assembly component (2), a sampling port adjusting device is arranged on the first upper chute, and the flow rate of the grain sample is controlled by adjusting the height of an adjusting plate through a long screw rod; the upper end of the second upper chute (5) is connected with the lower end of the first upper chute (3) through a bolt, a gasket, an elastic pad and a nut, and the lower end of the second upper chute (5) is connected with the grain bin assembly component (4) through a rubber pad (6); the upper end of the third upper chute (7) is connected with the grain bin assembly component (4) through a rubber pad (6), and the lower end of the third upper chute is connected with the grain inlet of the grain sample imaging device (8) and communicated with the guide pipe (16).

5. The device for monitoring the impurity content and breakage rate of grains according to claim 1, wherein the camera (25) is mounted on the camera support (12), the mirror surface of the camera is vertically downward, and the camera is parallel to the conveying surface of the special-shaped belt (24) and is positioned at a proper height right above the conveying surface, and the height depends on the focusing parameters of the camera (25) so as to ensure that the vision range of grains above the special-shaped belt (24) meets the sampling requirement when the image is acquired; the camera (25) is connected with the whole vehicle control unit (41) through a wire harness, the whole vehicle control unit (41) is connected with the image analysis processor (42) through the wire harness, and image signals acquired by the camera (25) are transmitted to the image analysis processor (42) in real time.

6. The device for monitoring the trash content and the breakage rate of grains according to claim 5, wherein the camera bracket (12) is fixed below an upper cover of the grain sample imaging device (8), the two light supplement lamps (15) are fixed on two sides of the camera bracket (12), and the camera (25) is fixed between the two light supplement lamps (15).

7. The device for monitoring the impurity rate and the breakage rate of grains according to claim 1, wherein a right side guard plate (44) and a left side guard plate (46) are assembled on the left and the right of the special-shaped belt (24), the right side guard plate (44) and the left side guard plate (46) are tightly attached to the conveying plane of the special-shaped belt (24) to form a first-stage seal, and the special-shaped structure of the special-shaped belt (24) forms a second-stage seal to prevent foreign matters from entering the belt.

8. The device for monitoring the impurity rate and the breakage rate of the grains according to claim 7, wherein an inclined grain receiving rubber (47) is arranged on the grain outlet side of the special-shaped belt (24), the grain receiving rubber (47) is connected with a drainage plate (48), the drainage plate (48) is connected with the left side wall and the right side wall of the grain sample imaging device (8) through bolts and nuts, so that the grain sample is separated from the special-shaped belt (24), and the drainage plate (48), the grain receiving rubber (47) and the special-shaped belt (24) form a third-stage seal.

9. A grain harvester comprising a device for monitoring the impurity rate and breakage rate of grains according to any one of claims 1 to 8.

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