KR101614342B1 - Combine - Google Patents

Abstract

Provided is a combine capable of storing a sufficient amount of grain in a grape tanks even if a sensor for detecting the grain size is disposed in the grape tanks. By placing the pitching sensor on the side of the inner surface opposed to the guide surface of the casing, a small amount of curvature collides against the pitch sensor as compared to the guide surface side, and the curvature is accumulated on average in the curling tank. Further, by positioning the pitching sensor on the side of the top surface of the helmet, it is possible to prevent the pitching sensor from being buried in the curved surface before the tearing tank becomes full. Since there is only a small amount of curvature colliding with the pitching sensor, the amount of wear of the pitching sensor can be reduced and the sensing capacity of the pitching sensor can be reduced.

Description

Combine {COMBINE}

The present invention relates to a combine capable of accurately detecting the amount of collected grains.

When harvesting in a field, harvesting, grain cutting and grain recovery are often used in crop harvesting. The combine travels through the packaging by the crawler, takes a curved path as a cutting edge during the traveling, and carries out the curved path by feeding it as a cylinder. Straw and curved grains separated from the grain boundary are sorted in the chaff sheave arranged below the grain grains, and the selected grain grains are poured from the chaff sheave and recovered into the grape tanks through the screw conveyor.

A blade plate for feeding the curled grains into the curled tanks is attached to the tip end of the screw conveyor, and a curled-grain-amount detecting sensor for detecting the amount of curled grains injected by the blade plate is provided in the curling tank. The brittle-material amount detecting sensor is provided with a piezoelectric element, and detects the amount of brittle material based on the pressure when the brittle material collides (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2005-24381

The grains colliding with the grainy grain amount sensor fall downward and are deposited in the graining tank. Generally, a switch for detecting that the grape tanks are full is provided in the vicinity of the blade plate in the grape tanks. When the grain size sensor is disposed in the rectilinear vicinity of the blade plate, the grains are accumulated intensively in the vicinity of the blade plate, and the switch is turned on before it is filled. As a result, it is not possible to store a sufficient amount of grains in the grape tanks.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a combine capable of storing a sufficient amount of a grain in a grape tanks even if a sensor for detecting a grain amount is disposed in the grape tanks.

The combine according to the present invention is characterized in that the combine according to the present invention comprises a threshing device for threshing the cut pieces, a storage portion for storing the curled grains thrown at the threshing device, a conveying means for conveying the curled material to the storage portion, And a detecting means for detecting the curl, wherein the combine is provided with a guide plate having a guiding surface for guiding the curled-up from the conveying means to the storing portion, wherein the detecting means is disposed at a position spaced apart from the guide plate do.

In the present invention, by placing the detection means at a position spaced apart from the guide surface of the guide plate, a small amount of curl collides with the detection means as compared with the guide surface side, and the curl is accumulated on average in the storage portion.

The combine according to the present invention is characterized in that the detection means is disposed in the storage section and is connected to an opening formed in a side surface of the storage section and includes a casing for accommodating the transporting means, And the detecting means is located on the inner side of the inner surface of the storage portion and on the side of the surface of the storage portion.

In the present invention, by placing the detection means on the side of the inner surface opposed to the guide surface of the casing, a small amount of curled grains collide with the detection means as compared with the guide surface side, and the grained grains are deposited on average in the grained tank. Further, by positioning the detection means on the surface side, the detection means is prevented from being buried in the curved surface before the grapefruit tank is filled.

The combine according to the present invention is characterized in that the conveying means is a screw conveyor and the detecting means is located on the inner side of the inner side of the inner side of the inner surface of the screw conveyor rather than a line intersecting the extending surface of the guide surface or the guide surface at a predetermined angle, .

In the present invention, since the curvature is conveyed along the outer periphery of the screw conveyor, the detection means is located on the inner surface of the inner surface of the guide surface or the extension surface of the guide surface at a predetermined angle, It can be reliably reduced as compared with the case of positioning.

The combine according to the present invention is characterized in that a blade plate for introducing the curl into the storage section is provided at a shaft portion of the end portion of the screw conveyor and the detection of the detection means And means for removing a normal deviation included in the integration result of the integration means based on the detection result of the detection means detected during the period other than the period.

In the present invention, by arranging the detection means outside the region, the difference between the detection value in the period in which the detection means collides with the curled state and the detection value in the period outside becomes clear, The normal deviation is removed based on the detection values other than the reference value.

The combine according to the present invention is characterized in that the detecting means has a collision portion in which the curvature collides, and the collision portion is disposed toward the opening.

In the present invention, the collision portion is opposed to the opening, so that the detection means reliably detects even a small amount of curled grains.

The combine according to the present invention is characterized in that the impact portion is constituted by an elastic member, and the detection means supports the impact portion and has a support portion having a hardness higher than that of the impact portion.

In the present invention, the impact portion is made of an elastic member, so that the abrasion resistance against the collision of the curved portions is improved. Also, it prevents the damage of the curled portions at the time of collision.

The combine according to the present invention is characterized in that the detecting means has a fixing portion for fixing the support portion in the storage portion, and the elastic member is provided with a receiving hole for receiving a head portion of the screw, A screw is inserted into the receiving hole and the through hole and the head of the screw is locked to the peripheral edge of the through hole so that the screw is screwed to the fixing portion.

In the present invention, the support portion and the fixing portion are connected by screws, and the detection means is held in the storage portion.

The combine according to the present invention is characterized in that the transporting means is a rotary feeding plate having a plurality of feeding blades for feeding curled grains tumbled in the trolling device to the storage portion on one side thereof, A detection means for detecting the passage of the feeding blades and a detection means for detecting the amount of the curled particles detected by the detection means in a contact period of the curl to the detection means determined on the basis of the detection result of the passage detection means, And a correction means for correcting the result on the basis of the detection result detected by the detection means outside the period, wherein the guide plate is laid out on the insertion plate, and the detection means is a guide surface on the end side of the guide path And is disposed at a position spaced apart from the extending surface of the guide surface.

In the present invention, the detected result of the detected percolation amount detecting means may be regarded as a normal deviation due to the disturbance other than the time period during which the charged abrasive grains are in contact with each other, and the detection result detected during the period is compared with the detection result Thereby suppressing the influence of the disturbance.

A large amount of curved grains are put into the storage portion along the guide surface or the extending surface of the guide surface on the end side of the guide portion. Therefore, the curled-grain-amount detecting means is disposed at a position spaced apart from the guide surface or the extending surface of the guide surface to avoid continuous contact of the curled-grain to the curled-grain-amount detecting means.

The combine according to the present invention is characterized in that the detecting means includes a line passing through the end of the guide portion at the end side of the guide path, which is disposed on the opposite side of the guide plate from the extending surface of the guide surface or the guide plate, Is disposed between the extended lines of the guide surfaces on the end side of the guide plate.

In the present invention, it is preferable that the curled-grain-amount detecting means is arranged on the end side of the guide portion on the opposite side of the guide plate or the extending surface of the guide plate, .

The combine according to the present invention is characterized in that the plurality of input blades are arranged radially around the center of rotation of the input plate and the inclination angle of one input blade is different from the inclination angle of the other input blades, And the inserted curl is brought into contact with the detection means.

In the present invention, a region in which only the curved granule charged by one input blade moves is generated in the storage portion, and the granular-grain-amount detecting means is disposed in the region. Therefore, the curled-pellets inserted by the other blades do not contact the curled-grain-amount detecting means, so that the curled-grain-amount detecting means detects the collision of the curled-up blades in accordance with the detection of passage of one of the blades, .

The combine according to the present invention is characterized in that the detecting means is arranged above the storage section.

In the present invention, the brittle-grain-amount detecting means is prevented from being buried in the grain before the storage portion is filled.

(Effects of the Invention)

In the present invention, by placing the detection means on the side of the inner surface opposed to the guide surface of the casing, a small amount of curled grains collide with the detection means as compared with the guide surface side, and the grained grains are deposited on average in the grained tank. In addition, by positioning the detection means on the surface side, it is possible to prevent the detection means from being buried in the curved surface before the grapefruit tank is filled. The amount of abrasion of the detecting means can be reduced and the senge capacity of the detecting means can be reduced since the amount of the curvature colliding with the detecting means is small.

When the detecting means is disposed on the guide surface side, a large amount of curved grains colliding with the detecting means must be accumulated in the vicinity of the opening, and the charging of the curved grains must be stopped before the storage portion is filled, and the working efficiency is lowered. The amount of the curled grains injected from the inner side of the inner face is small and the detection means is disposed on the inner side of the inner face to prevent the accumulation of the curled grains in the vicinity of the opening. In addition, the detecting means can be disposed at a position corresponding to the specification of the combine on the inner surface of the inner face.

In the present invention, since the curl is conveyed along the outer periphery of the screw conveyor, the detecting means is arranged in the region separated from the guide surface with reference to the line intersecting the extending surface of the guide surface or the guide surface at a predetermined angle, It is possible to reliably avoid collision in succession.

In the present invention, by arranging the detection means on the inner surface of the inner surface, the difference between the detection value in the period in which the detection means collides with the curvature and the detection value in the period outside the period becomes clear, The normal deviation can be eliminated based on the detected value. Therefore, it is possible to surely improve the accuracy of calculation of the grain size. When the detecting means is disposed on the guide surface side, the curvature collides with the detecting means over the entire period of time, so that the normal deviation can not be removed.

In the present invention, even if the impingement portion is opposed to the opening, even a small amount of curved particles can be reliably detected by the detection means, thereby improving the detection accuracy.

In the present invention, since the collision portion is made of the elastic member, the abrasion resistance against the collision of the curved portions is improved, and the number of times of replacement can be reduced. In addition, it is possible to prevent the damage of the grains at the time of collision, thereby improving the quality of the harvested grains.

In the present invention, the supporting portion and the fixing portion are connected by screws, and the detecting means is stably maintained in the storage portion. The support portion is made of metal, and the stability of the detection means can be improved as compared with the case where the screw is locked to the impact portion constituted by the elastic member. Further, when replacing the collision portion, it is possible to replace only by removing and installing the screw in a state in which the fixing portion having the harness, the circuit board and the like is left, and the time and cost required for maintenance can be reduced.

1 is an external perspective view of a combine according to a first embodiment.
2 is a side cross-sectional view showing the internal configuration of the threshing device.
3 is an exploded perspective view schematically showing a configuration in the vicinity of the casing.
Fig. 4 is a plan sectional view schematically showing the grape tanks. Fig.
Fig. 5 is a vertical sectional view showing the grape tanks in general.
Fig. 6 is a longitudinal sectional view showing the helmet sensor; Fig.
7 is an electric motor schematic showing the transmission path of the driving force of the engine.
8 is a block diagram showing the configuration of the control unit.
9 is a table showing the relationship between the number of revolutions of the engine and the coefficient beta.
10 is an example of a graph showing the relationship between the detection value of the pitching sensor located in the second region and the detection value of the pickup sensor.
11 is an example of a graph showing the relationship between the detection value of the pitching sensor located in the first region and the detection value of the pickup sensor.
12 is a flowchart showing a process of calculating the amount of graininess by the CPU.
13 is a flowchart showing correction value calculation processing by the CPU.
Fig. 14 is a plan sectional view schematically showing a curling tank according to another example of L2. Fig.
Fig. 15 is an enlarged internal side view showing the bucket type elevator and the grainy tank of the combine according to the second embodiment.
16 is a side view of the combine according to the third embodiment.
Fig. 17 is an oblique view of the combine. Fig.
18 is an oblique back view of the combine.
Fig. 19 is a partially enlarged side view schematically showing the conveying path of the curled lid in the combine. Fig.
Fig. 20 is an enlarged cross-sectional view schematically showing the configuration near the upper part of a grain conveyor.
21 is a plan view showing the leveling disk.
22 is a perspective view schematically showing the leveling disk.
23 is an explanatory view for explaining the inclination angle of the blade portion.
Fig. 24 is a cross-sectional view schematically showing a configuration in a grape tanks. Fig.
25 is a block diagram showing the configuration of the control unit.
Fig. 26 is an enlarged cross-sectional view schematically showing the configuration near the top of the grain conveyor of the combine according to the fourth embodiment. Fig.
Fig. 27 is an exploded perspective view schematically showing the configuration near the sprocket.
28 is an oblique sectional view for explaining the configuration of the fixed section and the pickup sensor;
29 is an explanatory view for explaining the vertical position of the pickup sensor when the vertical position of the support plate is adjusted;
30 is a block diagram showing the configuration of the control unit.

(Embodiment 1)

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the drawing showing a combine according to the first embodiment. 1 is an external perspective view of a combine.

In the figure, reference numeral 1 denotes a traveling crawler, and a base body 9 is provided on the upper side of the traveling crawler 1. On the base (9), a threshing device (2) is provided. A pretreatment unit 3 having a pretreatment unit 3a for discriminating between cut and uncut cut pieces and a cutting unit 3b for cutting the cut pieces and a raising device 3c for raising the cut pieces, ). On the right side of the threshing device 2, there is provided a grapefruit tank 4 for receiving the grains, and on the left side of the threshing device 2 there is provided a long feed chain 5 for conveying the grain.

And a sandwiching member 6 for sandwiching a curved portion is provided on the upper side of the feed chain 5 and the sandwiching member 6 and the feed chain 5 are opposed to each other. An upper transport device 7 is provided near the front end of the feed chain 5. The curved tank 4 is provided with a tubular discharge auger 4a for discharging the curl from the curling tanks 4 and a cabin 8 is provided in front of the curling tanks 4.

The base 9 travels by driving the traveling crawler 1. The groove 9 is introduced into the pre-loading portion 3 by running of the base 9, and is cut. The cut pieces are transported to the threshing device 2 through the upper transport device 7, the feed chain 5 and the sandwiching member 6 and are thrown in the threshing device 2. [

3 is an exploded perspective view schematically showing a configuration in the vicinity of the casing 140. Fig. 4 is a plan sectional view schematically showing the curling tank 4, Fig. 5 is an exploded perspective view of the curling tank 4, FIG. 2 is a vertical sectional view schematically showing the curling tank 4; In Figs. 4 and 5, broken line arrows indicate the direction of movement of the curved surface, and rounded shapes indicate curvature.

As shown in Fig. 2, a feeding room 10 for skidding a curtain is provided on the upper side of the front side of the threshing device 2. [ A cylindrical elevation 11 having a longitudinal direction in the longitudinal direction is provided in the feed chamber 10 on the shaft. The elevation 11 is rotatable around the shaft. A plurality of treads 12, 12, ... 12 are arranged in a spiral shape on the peripheral surface of the swash plate 11. And a crimp net 15 for sanding the straw cooperating with the treads 12, 12, ... 12 is disposed below the elevation 11. The tilting 11 is rotated by the driving force of the engine 40 to be described later, and the tilting of the tile is performed.

Four feeding valves 10a, 10a, 10a and 10a are arranged on the upper wall of the feeding chamber 10 in the forward and backward directions. The feeding valve controls the amount of straw and the curling amount fed to the rear portion of the feeding chamber 10 .

A treatment chamber (13) is provided at the rear of the supply chamber (10). The processing chamber 13 is provided with a cylindrical processing body 13b having a longitudinal direction in the longitudinal direction, and the processing body 13b is rotatable around the axis. On the circumferential surface of the treated copper 13b, a plurality of spikes 13c, 13c, ..., 13c are arranged in a spiral shape. A processing net 13d for scraping the straw in cooperation with the spikes 13c, 13c, ..., and 13c is disposed below the processing frame 13b. The treated copper 13b is rotated by the driving force of the engine 40 and performs a process of separating the grain from the straw and the grain fed out from the feeder 10. And a discharge port 13e is formed below the rear end of the treatment chamber 13. [

The four processing valves 13a, 13a, 13a and 13a are arranged on the upper wall of the processing chamber 13 along the front and rear direction. The processing valves 13a, 13a, 13a, Adjust the amount of straw and grain to be fed.

Below the crimped net 15, there is provided a shaking motion separating device 16 for sorting curled and straw. The swing sorting device 16 is provided on the rear side of the swinging motion discriminating board 17 for uniformizing the grains and the straw as well as performing specific gravity sorting, And a straw rack 19 provided at the rear side of the chaff sheave 18 for dropping the curved grain mixed in the straw. The straw rack 19 has a plurality of through holes (not shown). Further, a swing arm 21 is connected to the front portion of the swing motion discriminating board 17. [ And the pivot arm 21 is configured to swing back and forth. By the oscillation of the oscillating arm 21, the oscillation screening device 16 is oscillated to perform sorting of the straw and the curved shape.

The shaking motion separating device 16 is provided below the chaff sheave 18 and further includes a grain sheave 20 for precisely sorting grains and straw. And a first conveyor 23 is provided on the front side of the first conveyor 25. The first conveyor 23 is provided on the lower side of the grain sheave 20 and is inclined with the front side down. The No. 1 screw conveyor 23 acquires the slip of the No. 1 crumb plate 22 and feeds it to the curling tank 4.

As shown in Figs. 3 and 4, a rectangular blade plate 23b is provided on the shaft portion 23c at the upper end of the No. 1 screw conveyor 23. The blade plate 23b protrudes in the radial direction around the shaft portion 23c. And the blade plate 23b rotates in synchronization with the No. 1 screw conveyor 23.

The shaft portion 23c and the blade plate 23b are accommodated in the casing 140. [ The casing 140 has a U-shaped side surface 141 in a plane covering the shaft portion 23c and the periphery of the blade plate 23b. The side surface 141 is opposed to the side surface of the grapefruit tank 4 with the shaft portion 23c and the blade plate 23b interposed therebetween.

One end of the side surface 141 forms a guide surface 141a for guiding the curved surface. The other end of the side surface 141 forms the inner surface 141b opposed to the guide surface 141a. The guide surface 141a is inclined at an acute angle with respect to the side surface of the grapefruit tank 4 and extends in the direction opposite to the inner surface 141b. The dimension between the No. 1 screw conveyor 23 and the guide surface 141a is larger than the dimension between the No. 1 screw conveyor 23 and the inner surface 141b. An upper side surface 142 and a lower side surface 143 are provided on the upper and lower sides of the side surface 141. The side opposite to the side surface 141 is open, and a flange 231 is provided.

A through hole 142a is formed at the center of the upper surface 142. [ And a plurality of bolts 142b, 142b, ..., and 142b are installed upright around the through hole 142a. And a through hole 143a is formed at the center of the lower side surface 143. [ And a plurality of boss portions 143b, 143b, ..., 143b protruding downward are provided around the through hole 143a. The boss portion 143b has a cylindrical shape having a bottom surface with the top surface as the bottom surface, and a thread groove is formed on the inner peripheral surface.

And an outer cylinder 230 covering the periphery of the first screw conveyor 23 is fitted in the through hole 143a. A flange 231 is provided at the upper end of the outer cylinder 230. A plurality of through holes 231a, 231a, ..., and 231a corresponding to the boss portion 143b are formed in the flange 231. [ The bolt 230 is inserted from the lower side of the through hole 231a and screwed to the boss portion 143b.

A plate-shaped bearing base 232 for covering the through hole 142a is provided on the upper side of the upper surface 142. [ And an engagement hole 232d is formed at a central portion of the bearing receiving portion 232 so that two bearings 233 and 233 are engaged with each other. Through holes 232a, 232a, ..., and 232a corresponding to the bolt 142b are formed around the fitting hole 232d in the bearing base 232. [

And the bearings 233 and 233 are fitted in the fitting hole 232d side by side from above. And a bearing cover 234 for covering the fitting hole 232d is provided on the upper side of the bearing 233. And a retaining ring 235 for fixing the bearing cover 234 to the bearing support 232 is provided on the upper side of the bearing cover 234. The upper end of the shaft portion 23c of the No. 1 screw conveyor 23 is engaged with the bearings 233 and 233 from below.

And the respective bolts 142b are inserted into the respective through holes 232a from the lower side. And a nut 232c is screwed to each bolt 142b through a spring washer 232b.

A helmet 4b (opening) is formed on the side surface of the curling tank 4. The flange 231 is fixed to the peripheral edge of the helmet 4b through the sealing member 150. [ The blade plate 23b is opposed to the helmet 4b.

As shown in Fig. 5, a push-type switch 4c is provided near the pitch 4b and below the pitch 4b. When the grapefruit tank 4 is full, the push-type switch 4c is pressed by the stored curl and outputs a signal to the control unit 100, which will be described later. In Fig. 5, the one-dot chain line indicates the position of the top surface of the curved lid when the lid is full, and the dashed line indicates the vertical position of the lower edge of the pitch 4b.

As shown in Fig. 4, L1 is a line located on the plane extending the guide surface 141a and the guide surface 141a. L2 is an outer circumferential tangent line of the No. 1 screw conveyor 23 intersecting L1 at an angle of 30 degrees between the shaft portion 23c and the guide surface 141a. The area sandwiched by L 1 and L 2 in the graining tank 4 is set as the first area (see solid line hatching in FIG. 4), and the area opposite to the first area with reference to L 2 is set as the second area (See broken line hatched in Fig. 4).

As shown in Fig. 4, a pitching sensor 300 for detecting the impact value of the curled-up pouring from the pitching 4b into the curling tank 4 is disposed in the second region. 5, a supporting member 310 is hanged from the surface of the curling tank 4, and the pitching sensor 300 is fixed to the supporting member 310. As shown in Fig. The pitching sensor 300 is disposed on the upper side of the lower edge of the pitcher 4b. And is located on the upper side of the upper surface of the curled paper stored in the curling tanks (4) when the curling tanks (4) are full. In other words, the pitching sensor 300 is disposed at the upper and lower positions and the depth positions that are not buried in the curled-up when it is full.

FIG. 6 is a longitudinal sectional view showing the pitching sensor 300 roughly. The pitching sensor 300 includes a sensor main body 301 (fixing portion) having a strain gage and a circuit board. The sensor main body 301 has a housing, and houses a strain gage and a circuit board on the housing. And the back surface of the housing of the sensor main body 301 is fixed to the supporting member 310 by a plurality of screws 311. [ Further, the sensor main body 301 can be configured so as to be able to detect the impact value of the crushed crumbs. For example, a piezoelectric element may be provided in place of the strain gage.

A steel plate 302 (supporting portion) is provided on the front surface of the sensor main body 301. And the steel plate 302 is provided with an impact plate 303 (collision portion) against which the curvature collides. As shown in Fig. 4, the pitching sensor 300 directs the collision plate 303 to the pitching 4b.

The impingement plate 303 is made of an elastic member, and is made of polyurethane, rubber, elastomer or the like. The steel plate 302 is harder than the impingement plate 303 and may be made of other metals such as aluminum or copper or a resin such as polyethylene or vinyl chloride. The impact plate 303 is made of an elastic member, so that the abrasion resistance against the collision of the curved surface is improved. Also, it prevents the damage of the curled portions at the time of collision.

The impingement plate 303 is formed with a plurality of through holes 303a for receiving the head of the screw 304. [ The steel plate 302 is provided with a plurality of through holes 302a corresponding to the receiving holes 303a. The through hole 302a is smaller than the receiving hole 303a. The diameter of the threaded portion of the screw 304 is slightly smaller than the diameter of the receiving hole 303a. The diameter of the head of the screw 304 is larger than the diameter of the through hole 302a and smaller than the receiving hole 303a.

A plurality of screws 304 are inserted into the receiving hole 303a and the through hole 302a and screwed to the front surface of the housing of the sensor main body 301. [ The head of the screw 304 is locked to the peripheral edge portion of the through hole 302a. The steel plate 302 is sandwiched between the head of the screw 304 and the sensor main body 301. The stability of the pitching sensor 300 is improved as compared with a case where the steel plate 302 is made of metal and the screw is locked to the impact plate 303 made of an elastic member.

The curled drops falling from the grain sheave 20 to the No. 1 curled sheet 22 are slid toward the No. 1 screw conveyor 23. The slippery grains that have slipped off are conveyed by the No. 1 screw conveyor 23. The centrifugal force acts on the curved grains, and the curved grains rise along the outer periphery of the No. 1 screw conveyor 23. 4, the blade plate 23b rotates from the inner surface 141b side toward the guide surface 141a side (it rotates counterclockwise in Fig. 4). And the blade plate 23b pushes the curl toward the helmet 4b.

4, most of the extruded curved grains are moved along the guide surface 141a, as shown by the broken line arrows and circle in the vicinity of the guide surface 141a, and the first region in the curling tank 4 is continuous So that they are put into a strip shape. 4, the remaining curved grains are dispersed in the second region in the grapefruit tank 4, as indicated by the broken arrows and circles in the vicinity of the No. 1 screw conveyor 23. [

In the first region, the grains traveling along the guide surface 141a and the grains jumping against the guide surface 141a are continuously fed into the grapefruit tank 4. Further, since the contact is made with the guide surface 141a, the curved surface is decelerated. On the other hand, in the second region, the curved grains are directly introduced into the curling tank 4 from the blade plate 23b. Therefore, the curved lid does not contact the guide surface 141a as in the case of the curved portion which is put into the first region, and therefore, the curved lid is inserted at a high speed in a discrete state without being substantially decelerated.

Further, an upward force by the No. 1 screw conveyor 23 acts on the curvature. As shown by the broken arrow in Fig. 5, the curved surface moves obliquely upward by the combination of the upward force and the lateral force from the blade plate 23b.

Since the pitching sensor 300 is disposed in the second region, a small amount of the discrete grit collides with the pitching sensor 300 instantaneously. In addition, when the pitching sensor 300 is disposed in the first region, the continuous curvature of the lateral extension collides with the pitching sensor 300 continuously.

The curved grains are intermittently put into the curling tank 4 by the rotation of the blade plate 23b from the helmet 4b. A voltage is output from the strain gauge by colliding the inserted curl against the pitching sensor 300, and the amount of curl is calculated based on the output voltage.

A slope plate 24 is provided on the rear portion of the No. 1 curled plate 22 so as to be inclined downward and inclined rearward. And a second curved plate 25 is provided on the rear end portion of the swash plate 24 so as to be inclined downward. And a No. 2 screw conveyor 26 for conveying straw and curled grains is provided above the connecting portion between the No. 2 curled-up plate 25 and the swash plate 24.

The drop falling from the transmission hole of the straw rack 19 to the swash plate 24 or the second curling plate 25 is slid toward the second screw conveyor 26. The falling slip is conveyed by the No. 2 screw conveyor 26 to the processing rotor 14 installed on the left side of the elevation 11, and is subjected to the threshing processing in the processing rotor 14. [

There is provided a tuyere 27 which is located forward of the No. 1 screw conveyor 23 and performs an operation to generate wind below the shaking motion discriminating board 17. [ The wind generated by the wind generating action of the tuyeres 27 advances rearward. A rectifying plate 28 for upwardly sending out wind is provided between the tuyere 27 and the No. 1 screw conveyor 23.

And a passage plate 36 is connected to the rear end of the second curled plate 25. [ And a lower suction cover 30 is provided above the passage plate 36. Between the lower suction cover 30 and the passage plate 36 is an exhaust passage 37 through which dust is discharged.

An upper suction cover (31) is provided above the lower suction cover (30). And an axial flow fan 32 for sucking and discharging straw between the upper suction cover 31 and the lower suction cover 30 is provided. And a delivery port 33 is formed in the rear of the axial flow fan 32. The airflow generated by the operation of the tuyeres 27 is rectified by the rectifier plates 28 and 28 and then passes through the shaking motion separator 16 to reach the delivery port 33 and the exhaust passage 37.

Discharge sensors 34 and 34 having piezoelectric elements are disposed in the discharge port 33 and the discharge passage 37, respectively. The curled-up material is discharged from the discharge port 33 and the exhaust passage 37 and comes into contact with the discharge amount sensors 34 and 34. At this time, a voltage signal is output from the piezoelectric elements of the discharge amount sensors 34, 34 to detect the amount of grain bleeding discharged from the discharge port 33 and the exhaust path 37.

And a downflow trough 35 inclined downward toward the front is provided below the treatment chamber 13 above the upper suction cover 31. [ The discharge material discharged from the discharge port (13e) of the treatment chamber (13) slides on the lower trough (35) and drops onto the straw rack (19).

The operation of the traveling crawler 1 described above, the cutting operation of the preload portion 3, the rotation of the elevation 11, the rotation of the treated copper 13b, the oscillation of the oscillation discriminating device 16, And the like are performed by the driving force of the engine 40. 7 is an electric motor schematic showing the transmission path of the driving force of the engine 40 roughly.

As shown in FIG. 7, the engine 40 is connected to the running mission 42 via a HST (Hydro Static Transmission) 41. In the vicinity of the output shaft of the engine 40, an engine speed sensor 40a for detecting the engine speed is provided. The engine speed sensor 40a is a magnetic sensor having a Hall element or the like, and detects the number of revolutions by passing the magnetic body of the output shaft.

The HST 41 includes a hydraulic pump (not shown), a mechanism (not shown) for adjusting the flow rate of the hydraulic oil supplied to the hydraulic pump and the pressure of the hydraulic pump, and a shift circuit 41a for controlling the mechanism I have.

The traveling mission 42 has a gear (not shown) for transmitting a driving force to the traveling crawler 1. The running mission 42 is provided with a vehicle speed sensor 43 having a hall element. The vehicle speed sensor 43 detects the number of revolutions of the gear and outputs a signal indicating the vehicle speed of the vehicle corresponding to the number of revolutions of the gear.

The engine 40 is connected to the drive 11 and the drive 13b through an electronic thresher clutch 44 and is also connected to the transmission mechanism 50. [ The transmission mechanism (50) is connected to the No. 1 screw conveyor (23). A pickup sensor 51 is provided in the vicinity of a shaft connecting the transmission mechanism 50 and the No. 1 screw conveyor 23. [ The pick-up sensor 51 is a magnetic sensor having a Hall element or the like, and detects the number of revolutions of the No. 1 screw conveyor 23 by passage of the magnetic material of the shaft.

The engine 40 is also connected to the eccentric crank 45 via a thresher clutch 44. The eccentric crank 45 is connected to the swing arm 21. The rocking and sorting device 16 rocks by driving the eccentric crank 45. The engine 40 is connected to the tuyeres 27 through a thresher clutch 44. The engine 40 is also connected to the preload 3 via a thresher clutch 44 and an electronically cut clutch 46.

The driving force of the engine 40 is transmitted to the traveling crawler 1 through the traveling mission 42 and the vehicle travels. Further, the driving force of the engine 40 is transmitted to the preloading section 3 through the cutoff clutch 46, and the curved section is trimmed at the preloading section 3.

The driving force of the engine 40 is transmitted to the ram 11 through the threshing clutch 44 and the ramp is thrown at the ram 11. And the driving force of the engine 40 is transmitted to the machining operation 13b through the threshing clutch 44. [ The treated copper 13b separates the grain from the treated steel which has been subjected to the threshing treatment at the elevation 11.

The driving force of the engine 40 is transmitted to the shaking motion discriminating device 16 through the threshing clutch 44 and the eccentric crank 45 and the driving force of the engine 40 is transmitted to the shaking motion discriminating device 16, And the straw and the grain discharged from the discharge port 13e are sorted. The driving force of the engine 40 is transmitted to the tuyeres 27 through the threshing clutch 44 and the straw selected by the shaking motion sorting device 16 causes the tuyere 27 to wind, And the exhaust passage 37 as shown in Fig.

The combine is provided with a control section for calculating the amount of grain to be stored in the grapefruit tank 4 based on the output from the pitching sensor 300, the engine speed sensor 40a and the pickup sensor 51. [ Fig. 8 is a block diagram showing the configuration of the control unit 100, and Fig. 9 is a table showing the relationship between the number of revolutions of the engine 40 and the coefficient beta.

The control unit 100 includes a central processing unit (CPU) 100a, a ROM (Read Only Memory) 100b, a RAM (Random Access Memory) 100c and an EEPROM Progrmmable Read Only Memory) 100d. The CPU 100a loads the control program stored in the ROM 100b into the RAM 100c and executes necessary control such as the operation control of the feeding valve 10a and the processing valve 13a in accordance with the control program. The CPU 100a has a built-in timer.

A look up table (LUT) 100h is stored in the EEPROM 100d.

The LUT 100h stores a table showing the relationship between the number of revolutions of the engine and the coefficient [beta] (see Fig. 9). The table is provided with a column of " engine speed " and a column of " coefficient (beta) ", and each column of each column shows values of the engine speed and a coefficient? Respectively. The magnitude of the engine speed corresponds to the magnitude of the number of revolutions of the No. 1 screw conveyor 23.

A correction variable X is set in the EEPROM 100d, and a value is stored in the correction variable X as necessary. Further, a threshold value alpha for determining whether or not to include the detection value of the pitching sensor 300 in the object of calculation of the amount of graininess is set.

The control section 100 outputs a connection / cutoff signal to the cutout clutch 46 and the thresher clutch 44 via the output interface 100f. Further, the control unit 100 outputs a display signal indicating that the predetermined image is displayed on the display unit 83 through the output interface 100f. Further, the control unit 100 outputs an ON or OFF signal to the warning lamp 84 through the output interface 100f.

The output signals of the cutoff switch 80, the indicator setting switch 81, the operation switch 82, the pitching sensor 300, the push-button switch 4c, the pickup sensor 51 and the engine speed sensor 40a And is input to the control unit 100 through the input interface 100e.

A dashboard panel (not shown) is provided in the cabin 8, and a cutoff switch 80, an indicator setting switch 81, a plurality of operation switches 82 and a threshing switch 85 are provided on the dashboard panel. And a display unit 83 having a liquid crystal panel is also provided. Further, a warning lamp 84 is installed in the cabin 8. In addition, the cut-off clutch 46 and the thresher clutch 44 are connected / disconnected in response to the on-off of the cut-off switch 80. The threshing clutch 44 is connected / disconnected in response to the on / off of the threshing switch 85.

The CPU 100a accumulates the detection value by the output signal of the pitching sensor 300, compares the detected value with the threshold value alpha, and determines whether or not to integrate it into the integration target. Then, the detection value to be included in the integration target is stored in the EEPROM 100d in synchronization with the detection value by the output signal of the pickup sensor 51. [ 10 is an example of a graph showing the relationship between the detection value of the pitching sensor 300 and the detection value of the pickup sensor 51 located in the second area. 10A is a graph showing the relationship between the time and the detection value of the pitching sensor 300; The detection value of the pitching sensor 300 indicates the deformation amount due to the collision of the curved surface, and is a moving average value at a predetermined sampling number. 10B is a graph showing the relationship between the time and the detection value of the pickup sensor 51. Fig. The detection value of the pickup sensor 51 indicates a rotation start point and a rotation end point in one rotation of the blade plate 23b. In the following description, suffixes of the period P in Fig. 10 are appropriately omitted.

The detection value of the pickup sensor 51 is detected as a pulse wave and the interval of the pulsed wave corresponds to a period of one rotation of the first screw conveyor 23, that is, a period P of one rotation of the blade plate 23b . The CPU 100a acquires the detection value of the pitching sensor 300 at a predetermined sampling period (for example, 100 [ms]) and stores it in the EEPROM 100d. The CPU 100a creates a time stamp every time a pulse wave is input from the pickup sensor 51 and associates the time stamp with the detection value input from the pitch sensor 300 when the pulse wave is inputted to the EEPROM 100d.

10, when the curved grains are being fed into the curling tank 4 by the blade plate 23b, a collision of grains from the pitching sensor 300 to the CPU 100a occurs between P / 4 and 3P / 4 Is input. The detection value input from the pitching sensor 300 to the CPU 100a between 0 to P / 4 and 3P / 4 to P is a detection value when the curvature does not collide with the pitching sensor 300. [ In the pitching sensor 300 located in the second area, the curvature collides instantaneously between P / 4 and 3P / 4, and the curvature does not collide between 0 and P / 4 and 3P / 4 to P.

10A, the threshold value? Corresponds to a detection value detected by the pitching sensor 300 due to a disturbance such as a temperature characteristic of the pitching sensor 300, a wind pressure by the blade plate 23b, and a slope of the base 9 . Ideally, when the curved grains are not being charged into the curling tank 4 by the blade plate 23b, the CPU 100a from the pitching sensor 300 during P / 4 to 3P / No detection value is input. Actually, however, the detection value (threshold value [alpha]) by the disturbance (wind pressure by the blade plate 23b) is input from the pitching sensor 300 to the CPU 100a.

The CPU 100a compares the detected value input from the pitching sensor 300 with the threshold value alpha between P / 4 and 3P / 4. When the detected value includes a value exceeding the threshold value alpha, the CPU 100a determines that the detection value input between P / 4 and 3P / 4 is the target to be accumulated P1, P2, and P5). The value to be accumulated corresponds to the amount of impact caused by the collision of the curvature to the pitching sensor 300. [

If the detected value does not include a value exceeding the threshold value alpha, the CPU 100a excludes the detection value input between P / 4 and 3P / 4 from the target to be accumulated (in FIG. 10A Periods P3 and P4).

On the other hand, the value obtained by integrating the detection values of the pitching sensor 300 between 0 to P / 4 and 3P / 4 to P (the area of the solid hatched portion in FIG. 10A) corresponds to a normal deviation. The normal deviation is caused by the vibration of the engine 40, the vibration propagated to the pitching sensor 300 while traveling on the uneven package, and the characteristics of the pitching sensor 300 and the like.

The CPU 100a performs necessary processing on the value obtained by integrating the detection values of the pitching sensor 300 between 0 to P / 4 and 3P / 4 to P at a predetermined period (for example, 1 [s] And accesses the EEPROM 100d and stores it in the correction variable X. [

The CPU 100a accesses the EEPROM 100d, refers to the time stamp, and integrates the detection values of the pitching sensor 300 between P / 4 and 3P / 4. Then, the normal deviation included in the accumulated value is removed using the value stored in the correction variable X. For example, the value stored in the correction variable X is subtracted from the accumulated value.

The CPU 100a stores, in the RAM 100c, the correction value D obtained by removing the normal deviation. Then, a coefficient (?) Is applied to the correction value (D) to determine the amount of the grain bins stored in the grapefruit tank (4).

When the pitcher sensor 300 is arranged in the second area, it is possible to perform correction for removing the normal deviation. When the pitcher sensor 300 is disposed in the first area, correction for removing the normal deviation can not be performed. Hereinafter, the reason will be explained.

11 is an example of a graph showing the relationship between the detection value of the pitching sensor 300 and the detection value of the pickup sensor 51 located in the first region. 11A is a graph showing the relationship between the time and the detection value of the pitching sensor 300. Fig. The detection value of the pitching sensor 300 indicates the deformation amount due to the collision of the curved surface, and is a moving average value at a predetermined sampling number. The solid line in Fig. 11A represents the detection value of the pitching sensor 300 located in the first region. And the two-dot chain line represents the detection value of the pitching sensor 300 located in the second area. 11B is a graph showing the relationship between the time and the detection value of the pickup sensor 51. Fig. The detection value of the pickup sensor 51 indicates a rotation start point and a rotation end point in one rotation of the blade plate 23b. In the following description, suffixes of the period P in Fig. 11 are appropriately omitted.

As shown in Fig. 4, a strip-shaped group of curved strips continuous to the lateral extension is put in the first region in the curling tank 4. Therefore, when the pitching sensor 300 is disposed in the first region, the curvature collides with the pitching sensor 300 continuously for the period P. In other words, the curvature collides between 0 to P / 4 and 3P / 4 to P where the curvature should not collide with the pitching sensor 300. [

11, the detected values between 0 to P / 4 and 3P / 4 to P in each cycle P1, P2, and P5 in which the grains are charged into the grapefruit tank 4 are indicated by two-dot chain lines Is greater than the detection value (detection value of the pitching sensor 300 located in the second area). This is because the curvature collides between 0 to P / 4 and 3P / 4 to P where the curvature should not collide with the pitching sensor 300. [

0 to P / 4 and 3P / 4 to P is used for correction for eliminating the normal deviation, the curvature between 0 to P / 4 and 3P / 4 to P is applied to the pitching sensor 300 It is necessary to be able to consider it as not colliding or not colliding. However, since the curvature continuously collides with the pitching sensor 300 between 0 P / 4 and 3 P / 4 P, the detection value between 0 P / 4 and 3 P / It is impossible to use it for correction.

Next, the curled-grain-amount calculating process by the CPU 100a will be described. Fig. 12 is a flowchart showing the curled-grain-amount calculating process by the CPU 100a.

The CPU 100a takes a signal from the cutoff switch 80 to determine whether the cutoff switch 80 is on or not (step S1) and waits until the cutoff switch 80 is turned on (step S1: NO). When the cutoff switch 80 is on (step S1: YES), the CPU 100a acquires a signal from the engine speed sensor 40a (step S2). The CPU 100a accesses the EEPROM 100d and refers to the LUT 100h (step S3). The CPU 100a reads the coefficient β (β1 to β3) corresponding to the engine speed indicated by the signal acquired from the engine speed sensor 40a beta 6) (step S4).

The CPU 100a acquires signals from the pick-up sensor 51 and the pitching sensor 300 (step S5), and accumulates the amount of impact between P / 4 and 3P / 4 (step S6). At this time, the CPU 100a accesses the EEPROM 100d, refers to the time stamp, and integrates the detection value of the pitching sensor 300 between P / 4 and 3P / 4. In addition, the detection values are sequentially input from the pitching sensor 300 to the control unit 100 at a constant sampling period. The CPU 100a recognizes the detection values input between P / 4 and 3P / 4 by referring to the time stamp can do.

Subsequently, the CPU 100a determines whether a detection value exceeding the threshold value alpha is included in the detection value input between P / 4 to 3P / 4 (step S7). If the detected value exceeding the threshold value alpha is not included (step S7: NO), the CPU 100a advances the processing to step S12.

If the detected value exceeds the threshold value alpha (step S7: YES), the CPU 100a accesses the EEPROM 100d to refer to the correction variable X (step S8) (Step S9) to obtain the correction value D (step S9). For example, the CPU 100a subtracts the value stored in the correction variable X from the calculated impact amount. The subtraction is an example of the correction, and may be multiplied or divided based on the value stored in the correction variable X.

Then, the CPU 100a applies the coefficient? To the correction value D (step S10). For example, the correction value D is multiplied or added by the coefficient?. The multiplication or addition of the coefficient? Is an example of application of the coefficient?, And is not limited to this. Subsequently, the CPU 100a integrates the correction value D after applying the coefficient? (Step S11). Further, the integrated value in step S11 corresponds to the amount of grit accumulated in the grapefruit tank 4. The CPU 100a obtains a signal from the cutoff switch 80 and determines whether the cutoff switch 80 is off (step S12). If the cutoff switch 80 is not off (step S12: NO), that is, if the cutoff switch 80 is on, the CPU 100a returns the process to step S2. When the cutting switch 80 is off (step S12: YES), the CPU 100a ends the processing. Further, the above-mentioned grain-size-amount calculating process can be executed as a real-time process executed within the period P.

The CPU 100a waits until the elapsed time from the step S10 to the time when the cutting blades processed in the tilting operation 11 are taken out to the tearing tank 4 after the cutting switch 80 is turned off, The grain-size-amount calculating process may be terminated. The determination of step S7 may be performed after step S5.

Next, correction value calculation processing by the CPU 100a will be described. 13 is a flowchart showing correction value calculation processing by the CPU 100a.

The CPU 100a acquires a signal from the cutoff switch 80 to determine whether the cutoff switch 80 is on or not (step S21) and waits until the cutoff switch 80 is turned on (step S21: NO). When the cutoff switch 80 is on (step S21: YES), signals are picked up from the pickup sensor 51 and the pitching sensor 300 (step S22), and the signals are picked up from 0 to P / 4 and 3P / 4 to P (Step S23). At this time, the CPU 100a accesses the EEPROM 100d, refers to the time stamp, and integrates the detection values of the pitching sensor 300 between 0 to P / 4 and 3P / 4 to P. [ Further, the detection values are sequentially input to the control unit 100 from the pitching sensor 300 at a constant sampling period. The CPU 100a calculates the time stamps of the input signals of 0 to P / 4 and 3P / 4 to P The detected value can be recognized.

Then, the CPU 100a executes predetermined processing on the accumulated value (step S24). For example, a predetermined function set in advance in the EEPROM 100d is applied in accordance with an input from the operation switch 82 or by multiplying a coefficient considering the variation rate. Subsequently, the CPU 100a stores the processed value in the correction variable X (step S25).

Then, the CPU 100a starts the elapse of time from the built-in timer and waits until a predetermined time, for example 1 [s], elapses (step S26: NO). When a predetermined time has elapsed (step S26: YES), the CPU 100a acquires a signal from the cutoff switch 80 and determines whether the cutoff switch 80 is off (step S27). When the cutting switch 80 is turned on (step S27: NO), the CPU 100a sets the timer (step S28), and returns the processing to step S22. When the cutting switch 80 is off (step S27: YES), the CPU 100a ends the processing.

In the combine according to the first embodiment, by positioning the pitching sensor 300 on the side of the inner surface 141b opposite to the guide surface 141a of the casing 140, a small amount of curvature as compared with the guide surface 141a is transmitted to the pitching sensor 300 And the grains are accumulated on the average in the grapefruit tank 4. In this case, In addition, by placing the pitching sensor 300 on the surface side of the pitcher 4b, it is possible to prevent the pitcher sensor 300 from being buried in the curvature before the curling tank 4 is filled. Since the amount of the curvature that collides with the pitching sensor 300 is small, the wear amount of the pitching sensor 300 can be reduced and the pitch capacity of the pitching sensor 300 can be reduced.

When the pitching sensor 300 is disposed in the first region, a large amount of the curled-up collides with the pitching sensor 300 is accumulated near the pitching 4b, and the feeding of the curling is stopped before the curling tank 4 is filled The working efficiency is degraded. The amount of the curled grains supplied from the inner surface 141b is small and the pitch sensor 300 is disposed on the inner surface 141b of the inner surface 141b so that the curled grains can be prevented from accumulating intensively in the vicinity of the helmet 4b. The pitching sensor 300 can be disposed at a position corresponding to the specification of the combine on the side of the inner face 141b.

Since the curvature is conveyed along the outer periphery of the No. 1 screw conveyor 23, by arranging the pitch sensor 300 in the second area separated from the guide surface 141a with reference to L2, It is possible to reliably avoid collision with the sensor 300.

By arranging the pitching sensor 300 on the side of the inner face 141b (the second area), the detection value between 0 and P / 4 and 3P / 4 to P is set so that the curvature does not collide with the pitching sensor 300 It can be adopted as a detection value. Therefore, on the basis of the detection values in the range of P / 4 to 3P / 4 (the period in which the curved surface collides against the pitching sensor 300), based on the detection values between 0 to P / 4 and 3P / 4 to P It is possible to reliably improve the accuracy of calculation of the amount of graininess by eliminating the normal deviation. When the pitching sensor 300 is disposed on the side of the guide surface 141a (the first area), the curvature collides with the pitching sensor 300 over the entire period of one cycle, so that the normal deviation can not be removed.

Further, even when the impact plate 303 is opposed to the pitching 4b, even if the amount of the curved groove is small, the pitching sensor 300 can reliably detect it and improve the detection accuracy.

Further, since the impact plate 303 is made of an elastic member, the abrasion resistance against the collision of the curved corners improves, and the number of times of replacement can be reduced. In addition, it is possible to prevent the damage of the grains at the time of collision, thereby improving the quality of the harvested grains.

Also, the steel plate 302 and the sensor body 301 are connected by a screw 304, and the pitching sensor 300 is stably held in the graining tank 4. The steel plate 302 is made of a metal and can improve the stability of the pitching sensor 300 compared with a case where the screw 304 is locked to the impact plate 303 composed of an elastic member. In the case of replacing the impact plate 303, it is possible to replace only the screw 304 by removing and attaching the sensor body 301 with the sensor main body 301 having the harness, the circuit board, etc., The cost can be reduced.

Also, the steel plate 302 and the sensor body 301 are connected to each other by screws 304 to stably maintain the pitching sensor 300 in the graining tank 4. The steel plate 302 is made of a metal and can improve the stability as compared with a case where the screw 304 is locked to the impact plate 303 made of an elastic member.

In Fig. 4, the angle formed by L1 and L2 is 30 degrees, but the angle formed by L1 and L2 is not limited to this. L2 should be a line that distinguishes between a first region where the curvature continuously collides with the pitching sensor 300 and a second region which collides instantaneously, and the angle formed by L1 and L2 is appropriately selected according to the design.

Fig. 14 is a plan sectional view schematically showing the grapefruit tank 4 according to another example of L2. Fig. As shown in Fig. 14, L2 is located at a distance of 50 mm from the connecting portion between the guide surface 141a and the helmet 4b to the first screw conveyor 23 side (the inner inner surface 141b side). L2 intersects L1 at a predetermined angle. Even in this case, the curvature instantaneously collides with the pitching sensor 300 located in the second region.

(Embodiment 2)

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the drawings showing a combine according to a second embodiment. The combine according to the second embodiment uses the bucket-type elevator 144 for conveying the curled grains instead of the screw conveyor. The other configuration is the same as the combine according to the first embodiment. 15 is an enlarged schematic side view of an inner side surface of the bucket type elevator 144 and the curling tank 4. In Fig. 15, the broken line arrow indicates the movement direction of the curled-up, and the rounded shape indicates the curved shape.

The bucket type elevator 144 is formed by a back plate 500 and a front plate 501, left and right side plates 502 and a ceiling plate 144a (guide surface). Also, the front plate 501, which faces the cloth surface plate 144a, becomes a non-inner surface.

Pulleys 503 and 504 having right and left axial centers are respectively installed at upper and lower portions inside the bucket type elevator 144. An endless belt (chain) 505 is attached to the pulley 503 and the pulley 504 It is wound. The buckets 506 are attached to the belt 505 such that the buckets 506 are approximately U-shaped when viewed from the side where a plurality of upper openings are provided at appropriate intervals.

The driving force is transmitted to a pulley 504 provided at a lower portion of the bucket type elevator 144 and the belt 505 is driven together with the rotation of the pulley 504 to drive the bucket type elevator 144 And the pulley 503 having the same diameter is rotated. The upper and lower portions of the curved discharge port 507 (opening) provided in the upper portion of the bucket type elevator 144 from the unillustrated grooved supply port provided at the lower portion of the bucket type elevator 144 are passed through the bucket 506 ).

A rotary shaft 510 having a circular columnar shape when viewed from the side is installed in the cutting portion 507a which is the top portion of the back plate 500 of the curved discharge port 507 in the upper portion of the bucket type elevator 144. [ The rotation shaft 510 is fixed by bearings or the like provided at both ends of the cutout 507a. Fixing tension (not shown) is installed at the end of the rotation shaft 510 extending to the back side of Fig. .

The pitching sensor 300 is disposed in the vicinity of the surface of the curling tank 4 and the curved discharge port 507 in the curling tank 4. In addition, the pitching sensor 300 is located at a position apart from the cloth surface plate 144a, that is, on the side of the front plate 501 than the cloth surface plate 144a.

As shown in Fig. 15, most of the extruded curved grains are moved along the cloth surface plate 144a and are continuously fed into the grapefruit tank 4, as indicated by broken line arrows and circle in the vicinity of the cloth surface plate 144a. do. In Fig. 15, as shown by the broken line arrows and circles in the vicinity of the pulley 503, the remaining curvature is discretized in the curling tank 4 and put in. Discrete grains collide instantaneously in the pitching sensor (300).

By placing the pitching sensor 300 on the side of the front plate 501 facing the cloth plate 144a (guide face) (the inner face of the inner face), a small amount of curl collides with the pitching sensor 300 as compared with the cloth plate 144a, The grains are accumulated on average in the grape tanks 4.

Of the configuration according to the second embodiment, detailed description of the same configuration as the first embodiment will be omitted.

(Embodiment 3)

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to drawings showing a combine according to a third embodiment. FIG. 16 is a side view of the combine, FIG. 17 is a plain view of the combine, FIG. 18 is an oblique back view of the combine, and FIG. 19 is a partially enlarged side view schematically showing the conveying path of the curved portion in the combine.

As shown in Figs. 16 to 19, the combine has a crawler 61 running on the packaging, and a chassis 60 is provided on the crawler 61. Fig. A tread portion 62 is provided on the chassis 60 and a tread portion 64 is provided in front of the tread portion 62 with a feeder chamber 63 interposed therebetween. A curling tank 65 is provided on the lateral side of the threshing section 62 and an operation section 66 is provided in front of the curling tank 65. [

A shaking motion separator (109) is disposed below the threshing portion (62). A screw-type No. 1 conveyor 68 is provided below the fluctuation sorting device 109 in the axial direction. And a bucket-type grain conveyor 67 is installed upright at the end of the No. 1 conveyor 68. The grain conveyor 67 includes a vertically long box-shaped casing 70, two sprockets 114 and 115 pivotally supported vertically in the casing 70, two sprockets 114 and 115, And a plurality of buckets 117 fixed to the conveyor chain 116. The conveyor chain 116 includes a plurality of buckets 117,

The grain conveyor 67 has a receiving portion (not shown) having a circular arc shape projecting downward at a lower portion thereof. The upper part of the grain conveyor 67 is connected to the grape tanks 65. The curled grains selected in the shaking motion sorting device 109 are conveyed to the receiving portion of the grain conveyor 67 by the No. 1 conveyor 68. The curved lid of the receiving portion is poured into the bucket 117 by the driving of the sprockets 114 and 115 and the conveyor chain 116 and is conveyed to the upper portion of the grain conveyor 67.

A leveling disk 150 (see FIG. 20), which will be described later, is provided at a connection portion with the grain conveyor 67 on the upper part of the graining tank 65. The leveling disc 150 has a vertical direction as a rotation axis direction. The curled matter conveyed to the upper part of the grain conveyor 67 is fed toward the grape tanks 65 by the bucket 117. The charged grit is blown over the rotating leveling disk 150 and is uniformly dispersed in the grit tank 65.

A lower trough (not shown) is provided at the lower portion of the curling tank 65, and a screw type delivery conveyor 111 is provided in the lower trough. And the lower portion of the buckle type grainy discharge device 113 is connected to the end portion of the carry-out conveyor 111 through the succession case 112. [ The grainy grain discharging device 113 discharges the grains stored in the grainy tank 65 from the top of the grainy discharging device 113 to the outside.

A discharge port 113a is formed in the upper part of the curved discharge device 113. The discharge port 113a of the discharge port 113a is connected to an elongated tubular conveyor type conveying device 113 which is capable of conveying the curled material backward or laterally through the relay conveying device 69 (Not shown). The curled puddle discharged from the curling tank 65 by the curved discharging device 113 is conveyed to an external tank or the like by the conveyor type conveying device 170.

20 is an enlarged cross-sectional view schematically showing the configuration near the upper part of the grain conveyor 67. Fig.

The casing 70 of the grain conveyor 67 has a plurality of vertically elongated side portions 71 covering the periphery of the conveyor chain 116 and a ceiling portion 72 disposed on the upper side of the conveyor chain 116. The side portion 71 is disposed around the middle portion of the conveyor chain 116, and one side portion 71 is adjacent to the grape tanks 65. The ceiling portion 72 covers the upper portion of the side portion 71 and protrudes to the side of the grape tanks 65. The projected portion of the ceiling portion 72 is connected to the upper surface portion of the grapefruit tank 65. And an opening 65a is formed in the upper surface portion thereof, and the opening 65a and the inside of the ceiling portion 72 communicate with each other.

A leveling disk 150 is provided in the vicinity of the opening 65a in the curling tank 65 so as to blow out the curl. The leveling disk 150 is supported by the graining tank 65 through the support member 154. As shown in Fig. 20, when the bucket 117 rotates about the periphery of the sprocket 114 and moves backward, the grainy tank is charged into the grape tanks 65. [ The inserted curvature reaches the leveling disk 150. The leveling disc 150 fritters the grains and the grains are stored on average in the graining tank 65. Further, the leveling disk 150 is rotated by the power from the engine 40. The number of revolutions of the leveling disc 150 is linked to the number of revolutions of the engine.

Fig. 21 is a plan view showing the leveling disk 150, Fig. 22 is a perspective view showing the leveling disk 150, Fig. 23 is an explanatory view explaining the inclination angle of the blade portion, Fig.

A support member 154 is provided on the upper side of the graining tank 65 so as to oppose the upper surface of the graining tank 65 and supports the leveling disk 150. The supporting member 154 is provided with a rotary shaft 155 which is rotatable in the vertical direction in an axial direction. The leveling disc 150 includes a disc portion 153 in which the up and down direction is a rotational axis direction and a plurality of blade portions 151 and 152 arranged in a standing manner on the upper surface of the disc portion 153, ) (Input blade). The rotation shaft 155 is connected to the center of the disk portion 153. A motor 156 is provided below the support member 154 and the output shaft of the motor 156 is connected to the rotary shaft 155. When the motor 156 is driven, the disk portion 153 rotates, and the blade portions 151 and 152 are flipped over.

The disk unit 153 includes a horizontal plate 153a and an octagonal horizontal plate 153a having alternately long and short sides arranged alternately. The disk unit 153 is connected to the long side of the horizontal plate 153a and descends toward the horizontal plate 153a. And an inclined swash plate 153b. A concave portion 153c is formed on the bottom surface of the horizontal plate 153a so as to enter upward at a position corresponding to the blade portion 151. [ The swash plate 153b has a trapezoidal shape in which the lower floor is longer than the upper floor, and the lower floor side is connected to the longer side.

The blade portions 151 and 152 are provided with first fixing plates 151a and 152a fixed on the horizontal plate 153a, second fixing plates 151b and 152b fixed to the swash plate 153b, And 152b and the first fixing plates 151a and 152a and have upwardly projecting blade plates 151c and 152c. The first fixing plates 151a and 152a and the second fixing plates 151b and 152b are bolted to the horizontal plate 153a and the swash plate 153b so as to be spaced apart from the connecting portions of the horizontal plate 153a and the swash plate 153b have. The blade plates 151c and 152c are connected to the edge portions of the first fixing plates 151a and 152a and the second fixing plates 151b and 152b and the first fixing plates 151a and 152a and the second fixing plates 151b and 152b It is inclined downward toward.

The first fixing plate 151a of one blade 151 has a convex portion 151d protruding upward and resembling the concave portion 153c and convex portions 151d are formed outside the bottom portion of the concave portion 153c. And the inside of the portion 151d is fitted. The disk portion 153 is made of a magnetic material and is made of, for example, metal. It is assumed that the angles of the blade plates 151c and 152c with respect to the first fixing plates 151a and 152a in one blade 151 and the other blade 152 are? 1 and? 2, respectively In this case,? 1 is larger than? 2.

Up sensor 158 (passage detecting means) for detecting passage of one blade 151 between the disk portion 153 and the support member 154 is provided. The pickup sensor 158 is a magnetic sensor having a Hall element or the like. The distance from the rotation axis 155 to the pickup sensor 158 and the distance from the rotation axis 155 to the concave portion 153c are substantially equal to each other and the concave portion 153c is rotated by the rotation of the disk portion 153, ) Phase. When the concave portion 153c passes, a signal is output from the pickup sensor 158. [

A support lever 90 for supporting the graininess detection sensor 92 from the upper surface portion of the grapefruit tank 65 in the grapefruit tank 65 is stretched. The support lever 90 has an L-shape, and its lower end is bent toward the leveling disc 150. On the lower end of the support lever 90, a fixing plate 91 parallel to the up and down direction is provided, and one surface of the fixing plate 91 is opposed to the leveling disc 150.

On one surface of the fixing plate 91, a graininess detection sensor 92 for detecting the amount of graininess is fixed. The grain-size detecting sensor 92 includes a strain gage and a circuit board. The grainy-grain-amount detecting sensor 92 may be configured so as to be able to detect the impact value of the crushed grains. For example, a piezoelectric element may be provided in place of the strain gage.

As shown in Fig. 24, a push-type switch 55 is provided below the leveling disc 150 at an upper portion of the curling tank 65. As shown in Fig. The one-dot chain line shown in Fig. 24 shows a boundary between the curved grain and the upper space reserved when the grapefruit tank 65 is full. When the curling tank 65 is full, the push-type switch 55 is pressed by the stored curl and outputs a signal to the control unit 100, which will be described later.

The grainy grain amount detection sensor 92 is disposed on the upper side in the graining tank 65. Therefore, even when the push type switch 55 is pressed (when the grainy tank 65 is full), the grainy grain amount detection sensor 92 is not buried in the grain.

As shown in Figs. 21 and 22, a guide plate 156 is formed around the disk portion 153 and has a C-shape in a plan view guiding the curved lips. The inner surface of the guide plate 156 in the radial direction forms a guide surface, and a guide path is formed along the guide surface. The guide plate 156 has a main body portion 156a constituting a leading end to a middle portion of the guiding path and a terminating end portion 156b extending from the middle portion to the terminating end of the guiding path leading to the main body portion 156a. The main body portion 156a has a return type band shape and surrounds at least half of the peripheral edge portion of the disk portion 153. [

The end portion 156b has a curved band shape and extends in the circumferential direction with the same curvature as that of the main body portion 156a from the end portion of the main body portion 156a (middle portion of the guide path). The body portion 156a and the end portion 156b are bolted together. A notch 156c is formed in the lower portion of the terminal end portion 156b from the end surface of the terminal end portion 156b to the front of the connection portion with the body portion 156a.

The curled grains fed into the leveling disc 150 from the bucket move in the circumferential direction (clockwise in FIG. 21) around the rotary shaft 155 by the rotating blade portions 151 and 152. A centrifugal force is applied to the curved grains, and the curved grains are moved along the guide plate 156 to be blown out from between the notches 156c of the end portions 156b or both ends of the guide portions.

A line passing through the end of the notch 156c and the center of rotation of the rotation shaft 155 on the side of the connection portion with the main body portion 156a is defined as a first boundary line 201. In the connection portion of the termination portion 156b, And the circumscribed line at the distal end of the terminating end 156b is a third boundary line 203. The circumferential line passing through the leading end of the guide plate 156 and extending in the circumferential direction of the guide plate 156 And a line parallel to the intersecting direction is referred to as a fourth boundary line 204 (see Figs. 21 and 22). The first boundary line 201 and the second boundary line 202 are located on the opposite side of the leveling disc 150 with the guide surface of the guide plate 156 or the extending surface of the guide surface therebetween at the end side of the guide path.

In the region between the first boundary line 201 and the second boundary line 202 (see hatched portions shown in FIGS. 21 and 22), a small amount of curled grains are fed from the notch 156c into the curling tank 65, A small amount of grains move. In the region between the second boundary line 202 and the third boundary line 203, a continuous band-like group of curved grains continuing to the lateral expansion is introduced into the curling tank 65, so that a large amount of continuous curved grains are moved.

In a region between the third boundary line 203 and the fourth boundary line 204 (see hatched portions shown in FIGS. 21 and 22), a small amount of curled material remaining on the blade plates 151c and 152c after being blown out Since the curved grains are fed into the graining tank 65, a small amount of the discrete grained grains moves. Hereinafter, a region between the first boundary line 201 and the second boundary line 202 and a region between the third boundary line 203 and the fourth boundary line 204 are referred to as a discrete region, and the second boundary line 202 and the third The area between the boundary lines 203 is referred to as a continuous area. The brittle-material amount detection sensor 92 is disposed in the discrete area, and the brittle material is instantly brought into contact with the brittle-material amount detection sensor 92. Also, the discrete region and the continuous region represent a region viewed from the plane.

As described above, the angles of the blade plates 151c and 152c with respect to the first fixing plates 151a and 152a of one blade 151 and the other blades 152, 152 and 152 are set to be θ1 and θ2 , &Amp;thetas; 1 is larger than &thetas; 2. The two solid line regions shown in Fig. 23 represent a region (hereinafter referred to as a first region 301) in which the curled portion charged by one blade portion 151 moves.

The region between the two-dot chain lines shown in Fig. 23 represents a region (hereinafter referred to as a second region 302) in which the curled particles charged by the other blade portions 152, 152, 152 move. As shown in Fig. 23, in the first region 301, an area not overlapping the second region 302 exists on the upper side. The grain-size detecting sensor 92 is disposed in the upper region of the first region 301 that does not overlap the second region 302. [ For this reason, only the curl charged by one blade portion 151 comes into contact with the grain size detection sensor 92. In addition, the first region 301 and the second region 302 indicate regions viewed from the side.

The combine is provided with a control section (100) for calculating the amount of grain to be stored in the grapefruit tank (65) based on the output from the grain size detection sensor (92) and the pickup sensor (158). Fig. 25 is a block diagram showing the configuration of the control unit 100. Fig.

The control unit 100 includes a CPU 100a, a ROM 100b, a RAM 100c, and an EEPROM 100d connected to each other by an internal bus 100g. The CPU 100a reads the control program stored in the ROM 100b into the RAM 100c, and executes calculation of the amount of grain lattice according to the control program. The LUT 100h is stored in the EEPROM 100d.

The LUT 100h stores a table showing the relationship between the number of rotations of the engine 40 and the coefficient? (See Fig. 9). The magnitude of the engine speed corresponds to the magnitude of the number of revolutions of the sprockets 114, 115. The number of revolutions represents the number of revolutions per unit time (for example, one minute).

A correction variable X is set in the EEPROM 100d, and a value is stored in the correction variable X as necessary. Further, a threshold value? For determining whether or not to include the detected value of the percolation amount detection sensor 92 in the subject of calculation of the percolation amount is set.

A cut clutch 46 and a thresher clutch 44 for cutting or connecting the power transmission path are provided on the power transmission path from the engine 40 to the preload part 64 and the threshing part 62. [ An engine speed sensor 40a for detecting the engine speed is provided in the vicinity of the output shaft of the engine 40. [ A dashboard panel (not shown) is provided in the operation unit 66, and a cutoff switch 80 for cutting and skimming the dashboard panel and a display unit 83 for displaying information are arranged .

The control unit 100 outputs a cut / connect signal to the cut clutch 46 and the thresher clutch 44 via the output interface 100f. Further, the control unit 100 outputs a display signal indicating that the predetermined image is displayed on the display unit 83 through the output interface 100f.

Output signals of the cutoff switch 80, the graininess detection sensor 92, the pickup sensor 158, the engine speed sensor 40a and the push switch 55 are input to the control unit 100 through the input interface 100e, As shown in FIG. Further, the cut-off clutch 46 and the thresher clutch 44 are cut / connected corresponding to the on-off of the cut-off switch 80. [

When a signal is inputted to the control unit 100 from the push type switch 55, the control unit 100 outputs a signal to the display unit 83 and the display unit 83 displays information indicating that the grape tanks 65 are full Display. Thus, the operator can easily recognize that the grape tanks 65 are full. When the graining tank 65 is full, the operator usually finishes the harvesting operation. Therefore, when the pressing switch 55 is pressed, the harvesting operation is completed and the grainy grain detection sensor 92 can reliably be prevented from being buried in the grain.

The CPU 100a accumulates the detection value by the output signal of the graininess detection sensor 92 and compares the detected value with the threshold value alpha and determines whether or not to integrate it into the integration target. Then, the detection value to be included in the integration target is stored in the EEPROM 100d in synchronization with the detection value by the output signal of the pickup sensor 158. [ 10 described above is used as an example of a graph showing the relationship between the detection value of the graininess detection sensor 92 and the detection value of the pickup sensor 158, and the reason therefor will be described.

10A is a graph showing the relationship between the time and the detection value of the graininess detection sensor 92. Fig. The detected value of the grain size detection sensor 92 indicates the amount of deformation caused by the collision of the curved grains and is a moving average value at a predetermined sampling number. 10B is a graph showing the relationship between the time and the detection value of the pickup sensor 158. Fig. The detection value of the pick-up sensor 158 indicates the start point of the curved insertion period by the bucket 117. In the following description, suffixes of the period P in Fig. 10 are appropriately omitted.

The detection value of the pick-up sensor 158 is detected as a pulse wave, and the interval of the pulse springs is set so that the interval between one blade plate and the next one blade plate, in other words, P). The CPU 100a acquires the detected value of the graininess detection sensor 92 at a predetermined period (for example, 100 [ms]) corresponding to the period P and stores it in the EEPROM 100d. The CPU 100a creates a time stamp every time a pulse wave is input from the pickup sensor 158 and associates the time stamp with the detection value input from the percolation amount detection sensor 92 when the pulse wave is inputted And stored in the EEPROM 100d.

10, the curled-grain-amount detecting sensor 92 is connected to the CPU 100a during P / 4 to 3P / 4 (the contact period) when the curved lid is inserted into the curling tank 65 by the bucket 117 The detection value due to the collision of the curved lines is input. The detected value input from the graininess detection sensor 92 to the CPU 100a between 0 to P / 4 and 3P / 4 to P is detected when the grain boundary does not collide with the grain boundary detection sensor 92 Value. The curled-grain-amount detecting sensor 92 instantaneously collides with the curved portion between P / 4 and 3P / 4 and does not collide with the curved portion between 0 to P / 4 and 3P / 4 to P (non-contact period).

10A, the threshold value? Corresponds to the detection value detected by the grain size detection sensor 92 by the disturbance such as the temperature characteristic of the grain size detection sensor 92 and the slope of the gas. When the curved lips are not being charged into the curling tank 65 by the leveling disk, ideally, the curled-grain amount detecting sensor 92 detects the detection by the collision of the curled-up lips to the CPU 100a between P / 4 and 3P / No value is entered. Actually, however, the detection value (threshold value?) Due to the disturbance is input from the grainy grain amount detection sensor 92 to the CPU 100a.

The CPU 100a compares the detected value input from the graininess detection sensor 92 with the threshold value alpha between P / 4 and 3P / 4. When the detected value includes a value exceeding the threshold value alpha, the CPU 100a determines that the detected value input between P / 4 and 3P / 4 should be accumulated P1, P2, and P5). The value to be accumulated corresponds to the amount of impact due to the collision of the curvature of the curled-grain-amount detecting sensor 92. [

If the detected value does not include a value exceeding the threshold value alpha, the CPU 100a excludes the detection value input between P / 4 and 3P / 4 from the target to be accumulated (in FIG. 10A Periods P3 and P4).

On the other hand, the value (the area of the solid hatched area in FIG. 10A) obtained by integrating the detection values of the graininess detection sensor 92 between 0 P / 4 and 3 P / 4 through P corresponds to a normal deviation. The steep deviation is caused by the vibration of the engine 40, the vibration propagated to the graininess detection sensor 92 during running of the uneven package, and the characteristics of the graininess detection sensor 92, and the like.

The CPU 100a sets the value obtained by multiplying the detection value of the graininess detection sensor 92 between 0 to P / 4 and 3P / 4 to P by a predetermined period (for example, 1 [s] Performs necessary processing, accesses the EEPROM 100d, and stores it in the correction variable X.

The CPU 100a accesses the EEPROM 100d, refers to the time stamp, and integrates the detected value of the graininess detection sensor 92 between P / 4 and 3P / 4. Then, the normal deviation contained in the accumulated value is removed by using the value stored in the correction variable X. For example, the value stored in the correction variable X is subtracted from the accumulated value.

The CPU 100a stores, in the RAM 100c, the correction value D obtained by removing the normal deviation. Then, a coefficient (?) Is applied to the correction value (D) to determine the amount of grain lumps stored in the grapefruit tank (65).

When the grit content detecting sensor 92 is disposed in the discrete area, it is possible to perform correction to remove the normal deviation. When the grit content detecting sensor 92 is disposed in the continuous area, correction for removing the normal deviation can not be performed. 11 is used as an example of a graph showing the relationship between the detection value of the graininess detection sensor 92 and the detection value of the pickup sensor 158, and the reason therefor will be described below.

11A is a graph showing the relationship between the time and the detection value of the graininess detection sensor 92. Fig. The detected value of the grain size detection sensor 92 indicates the amount of deformation caused by the collision of the curved grains and is a moving average value at a predetermined sampling number. The solid line in Fig. 11A indicates the detection value of the grain size detection sensor 92 located in the continuous region. The two-dot chain line represents the detection value of the grain size detection sensor 92 arranged in the discrete area. 11B is a graph showing the relationship between the time and the detection value of the pickup sensor 158. Fig. In the following description, suffixes of the period P in Fig. 11 are appropriately omitted.

As shown in Fig. 22, in the continuous region, a band-like group of curved strips continuous to the lateral expansion moves. Therefore, when the grain-size-content detecting sensor 92 is disposed in the continuous area, the grain-size-content detecting sensor 92 continues to collide with the grain-size sensor during the period P. In other words, the curled-up collides between 0 to P / 4 and 3P / 4 to P where the curled-grain should not collide with the grain-diameter detecting sensor 92. [

11, the detection values between 0 and P / 4 and between 3P / 4 and P in each of the periods P1, P2, and P5 in which the grains are charged into the grapefruit tank 65 are represented by two-dot chain lines Is larger than the detection value (detection value of the grain-size detection sensor 92 disposed in the discrete area). This is because the curled-up collides between 0 to P / 4 and 3P / 4 to P where the curled-grain should not collide with the grain-diameter detecting sensor 92.

Further, in order to use the detection value between 0 P / 4 and 3 P / 4 through P for correction for removing the normal deviation, the curled-up portion between the 0 to P / 4 and 3P / It is necessary to be able to consider that it does not collide with or does not collide. However, since the curled-up particles continuously collide with the curled-grain-amount detecting sensor 92 between 0 to P / 4 and 3P / 4 to P, the detected value between 0 to P / 4 and 3P / It can not be used for the correction to remove.

The CPU 100a executes the above-described grainy grain amount calculating process (see Fig. 12) and the correction value calculating process (see Fig. 13) similarly to the first and second embodiments.

In the combine according to the third embodiment, the detection result of the grain size detection sensor 92 detected during the non-contact period is regarded as a normal deviation due to the disturbance, and the detection result detected in the contact period is compared with the detection result detected in the non- The influence of the disturbance can be suppressed. And it is also possible to avoid continuous contact of the curved grains to the curled-grain-amount detecting sensor 92. [

The curled-grain-amount detecting sensor 92 may be disposed at the end of the guide plate 156 on the opposite side of the leveling disc 150 from the guide surface or the extended surface of the guide surface, or may be disposed at the leading end of the guide plate 156, Thereby surely avoiding the continuous contact of the curled-grain to the curled-grain-amount-detecting sensor 92. [0070] As shown in Fig.

In addition, a region in which only the curl charged by one of the blade portions 151 moves is generated in the curling tank 65, and the curl amount detection sensor 92 is disposed in the region. This makes it possible to prevent the curled-grain amount detecting sensor 92 from being in contact with the curled-grain-amount detecting sensor 92 in accordance with the detection of passage of one of the blade portions 151, The collision of the curved grains is detected, and the calculation of the amount of curled grains is reliably performed.

It is also possible to prevent the graininess detection sensor 92 from being buried in the grain before the grain tank 65 becomes full by disposing the grain sensor 92 on the upper side in the grain tank 65. [

In the structure of the combine according to the third embodiment, the same reference numerals are given to the same components as those of the first or second embodiment, and a detailed description thereof will be omitted.

(Fourth Embodiment)

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to drawings showing a combine according to a fourth embodiment.

Fig. 26 is an enlarged cross-sectional view schematically showing the configuration near the upper part of the grain conveyor 67 of the combine.

The ceiling portion 72 includes a top surface portion 72a perpendicular to the up and down direction and a plurality of inclined surface portions 72b inclined downwardly from the bottom surface of the top surface portion 72b, And has a plurality of connected side portions 72c that are hanged. The top surface portion 72a is positioned above both of the upper sprocket 114 and the curling tank 65. [ The lower ends of the plurality of connecting side portions 72c are connected to the other side portion 71 at a position spaced apart from the tearing tank 65 and the upper surface portion of the tearing tank 65, respectively. And an opening 65a is formed in the upper surface portion thereof. The opening 65a communicates with the inside of the ceiling portion 72.

A grainy grain amount detecting sensor 73 for detecting the amount of graininess is attached to an inclined surface portion 72b located on the side of the grain tank 65 in the ceiling portion 72. [ The grit content detection sensor 73 is fixed to the slope portion 72b through the attachment hole 74 projected from the slope portion 72b and is separated from the slope portion 72b. The brittle-material amount detecting sensor 73 includes a strain gage and a circuit board. The grainy grain amount detection sensor 73 may be configured to be capable of detecting the impact value of the collided grain. For example, a piezoelectric element may be provided in place of the strain gage. The separation distance between the graininess detection sensor 73 and the slope portion 72b is a distance at which the grain or group of grains guided by the slope portion 72b does not contact the grain sensor 73. [

A leveling disk 150 is provided in the vicinity of the connecting side surface portion in the graining tank 65 so as to blow out the grains. The leveling disk 150 is supported by the graining tank 65 through the support member 154. The leveling disc 150 includes a disc portion 151 having a top surface and a bottom surface in the rotational axis direction, a plurality of blade portions 152 disposed upright on the top surface of the disc portion 151 and arranged radially around the center of rotation, And a motor 153 rotatably driving the disk unit 151 and disposed below the disk unit 151.

As shown in Fig. 26, when the bucket 117 rotates around the sprocket 114 and moves backward, it feeds the grains to the grape tanks 65. As shown in Fig. Most of the charged abrasive grains continuously move toward the top surface portion 72a by the centrifugal force and move along their surfaces with the top surface portion 72a and the sloping surface portion 72b as guiding surfaces. These curved or curved groups move between the curled-grain-amount detecting sensor 73 and the inclined surface portion 72b and arrive at the leveling disk 150 without colliding with the curled-grain-amount detecting sensor 73. On the other hand, a small amount of curved grains are discretely moved at a position away from the top face portion 72a, and collide with the grain size detection sensor 73 to reach the leveling disk 150. [ By the rotation of the disk portion 151, the blade portion 152 fritters the curled-up paper, and the curled paper is stored on average in the curling tank 65.

Fig. 27 is an exploded perspective view schematically showing the configuration near the sprocket 114. Fig.

Long and elliptical through holes 72d1 and 72d2 are formed in each connecting side surface portion 72c opposite to both surfaces of the sprocket 114. [ The short diameter of one through hole 72d1 is longer than that of the other through hole 72d2 and is designed so that a pickup sensor described later is inserted. Female threaded portions are provided on both sides of the through holes 72d1 and 72d2. Two support plates 161 and 162 for supporting a chain shaft 180 described later face the through holes 72d1 and 72d2, respectively. The support plates 161 and 162 are located on opposite sides of the sprocket 114 with the connecting side portion 72c therebetween. The support plates 161 and 162 have insertion holes 161b and 162b corresponding to the through holes 72d1 and 72d2. On both sides of the insertion holes 161b and 162b, long elongated holes 161a, 161a, 162a and 162a are formed.

Up sensor (passage detecting means) 161c for detecting the passage of the bucket 117 is provided on the support plate 161 located on one side of the through hole 72d1. The pickup sensor 161c is a magnetic sensor having a Hall element or the like and is located between the insertion hole 161b and the long hole 161a and at a position that can be inserted into the through hole 72d1. The pick-up sensor 161c is opposed to the row on the ascending side of the conveyor chain 116. [ The bolts 163 are inserted into the elongated holes 161a and 162a through the collar 164 and screwed to the female screw portions so that both the support plates 161 and 162 And is fixed to the connecting side portion 72c.

The chain shaft 180 into which the sprocket 114 is fitted is inserted from the insertion hole 161b of one of the support plates 161 and inserted into both of the through holes 72d1 and 72d2 and the other insertion hole 162b . The chain shaft 180 is rotatably fitted in the insertion holes 161b and 162b through a bearing 181. [ A sprocket 114 is engaged with a middle portion of the chain shaft 180 through a collar 114a on the inner side of the casing 70. The sprocket 115 is also engaged with a rotatable chain shaft (not shown). The conveyor chain 116 is spread on the sprockets 114 and 115 and the conveyor chain 116 is driven by the rotation of the sprockets 114 and 115 so that the curling of the buckets 117 is performed.

28 is an oblique sectional view for explaining the configuration of the fixing portion 116c and the pickup sensor 161c.

The conveyor chain 116 has a plurality of outer links 116a and inner links 116b, and the outer links 116a and the inner links 116b are connected. Each of the inner links 116b is provided with a fixed portion 116c made of a magnetic material, to which a bucket 117 is fixed. The buckets 117 are fixed to a predetermined fixing portion 116c at substantially equal intervals. There is also a fixing portion 116c in which the bucket 117 is not fixed. And a concave portion 16d is formed on the side of the support plate 161 of the fixing portion 116c. When the conveyor chain 116 is driven, the heat on the ascending side passes in front of the pickup sensor 161c. When the concave portion 16d passes in front of the pickup sensor 161c, a passing signal is output from the pickup sensor 161c and is input to a control unit described later. The inner link 116b may also serve as the fixing portion 116c, and in this case, the recess 16d is formed in the inner link 116b.

29 is an explanatory view for explaining the vertical position of the pickup sensor 161c when the vertical position of the support plate 161 is adjusted.

The tension of the conveyor chain 116 can be adjusted by adjusting the vertical positions of the support plates 161 and 162. For example, when the conveyor chain 116 is worn by long-term use (when the so-called conveyor chain 116 is stretched), the sprocket 114 is moved upward to restore the tension of the conveyor chain 116 . Specifically, the support plates 161 and 162 supporting the chain shaft 180 are moved upward to move the sprocket 114.

29, when the support plate 161 is lifted upward, the pickup sensor 161c fixed to the support plate 161 also rises the same distance as the support plate 161. As shown in Fig. The distance at which the pick-up sensor 161c rises corresponds to the extension of the conveyor chain 116.

The timing at which the fixing portion 116c fixing the bucket 117 passes through the pickup sensor 161c is measured in advance and the pickup sensor 161c outputs the detection result in accordance with the timing and the control portion obtains it. Further, the control unit may acquire the output signal of the pickup sensor 161c in accordance with the timing. Therefore, when only the support plate 161 moves and the pickup sensor 161c does not move, it can not be distinguished at the timing at which the output signal of the pickup sensor 161c should be obtained. Therefore, Can not be calculated.

As described above, by raising the distance as the support plate 161, the control unit can acquire the output signal of the pickup sensor 161c in accordance with the timing. Further, the timing is determined in accordance with the rotational speed of the sprockets 114, 115. For example, as the rotational speed of the sprockets 114, 115 is slower and faster, the length between the points at which the output signal of the pickup sensor 161c is acquired is short. Since the combine has the engine 40 and the sprockets 114 and 115 rotate by driving the engine 40, the timing may be determined in accordance with the rotational speed of the output shaft of the engine 40. [

The combine is equipped with a control section for calculating the amount of grain to be stored in the grapefruit tank based on the output from the grain size detection sensor 73 and the pickup sensor 161c. 30 is a block diagram showing the configuration of the control unit 100. As shown in Fig.

The control unit 100 includes a CPU 100a, a ROM 100b, a RAM 100c, and an EEPROM 100d. The CPU 100a reads the control program stored in the ROM 100b into the RAM 100c, and executes calculation of the amount of grain lattice according to the control program. The CPU 100a has a built-in timer.

The LUT 100h is stored in the EEPROM 100d. The LUT 100h stores a table showing the relationship between the number of rotations of the engine 40 and the coefficient? (See Fig. 11). The magnitude of the engine speed corresponds to the magnitude of the number of rotations of the sprockets 114, 115. The number of revolutions represents the number of revolutions per unit time (for example, one minute). The EEPROM 100d is also provided with a correction variable X and a threshold value alpha.

The output signals of the grain size detection sensor 73 and the pickup sensor 161c are input to the control unit 100 through the input interface 100e.

The above-described FIG. 10 is used as an example of a graph showing the relationship between the detection value of the grain-size detection sensor 73 and the detection value of the pickup sensor 161c. 11 is used as an example of a graph showing the relationship between the detection value of the grain size detection sensor 73 positioned on the top face portion 72a and the slope face portion 72b and the detection value of the pickup sensor 161c, The correction for eliminating the deviation will be described.

10, the curled-grain-amount detecting sensor 73 receives the CPU 100a during the period of P / 4 to 3P / 4 (the contact period) when the curved lid is inserted into the curling tank 65 by the bucket 117. [ The detected value due to the collision of the curled particles is input. The detected value inputted from the graininess detection sensor 73 to the CPU 100a between 0 to P / 4 and 3P / 4 to P is detected when the grain boundary does not collide with the grain boundary amount detection sensor 73 Value. The curled-grain-amount detecting sensor 73 instantaneously collides with the curved portion between P / 4 and 3P / 4 and does not collide with the curved portion between 0 to P / 4 and 3P / 4 to P (non-contact period).

10A, the threshold value? Corresponds to a detection value detected by the grain size detection sensor 73 due to disturbance such as the temperature characteristic of the grain size detection sensor 73 and the slope of the gas. When the curved lid is not being charged into the curling tank 65 by the bucket 117, ideally, the lint amount detecting sensor 73 will cause the CPU 100a to collide with the grain 100 between P / 4 and 3P / 4 Is not input. Actually, however, the detected value (threshold value?) Due to the disturbance is input from the grain-size detecting sensor 73 to the CPU 100a.

The CPU 100a compares the detected value input from the graininess detection sensor 73 with the threshold value alpha between P / 4 and 3P / 4. When the detected value includes a value exceeding the threshold value alpha, the CPU 100a determines that the detection value input between P / 4 and 3P / 4 is the target to be accumulated P1, P2, and P5). The value to be accumulated corresponds to the amount of impact caused by the collision of the curled-up grain to the grain-size detecting sensor 73. [

If the detected value does not include a value exceeding the threshold value alpha, the CPU 100a excludes the detection value input between P / 4 and 3P / 4 from the target to be accumulated (in FIG. 10A Periods P3 and P4).

On the other hand, the value obtained by integrating the detection values of the grain size detection sensor 73 between 0 to P / 4 and 3P / 4 to P (the area of the solid hatched area in FIG. 10A) corresponds to a normal deviation. The steep deviation is caused by the vibration of the engine 40, the vibration propagated to the graininess detection sensor 73 during traveling of the uneven package, and the characteristics of the graininess detection sensor 73 and the like.

The CPU 100a calculates a value obtained by multiplying the detection value of the graininess detection sensor 73 between 0 to P / 4 and 3P / 4 to P by a predetermined period (for example, 1 [s] And accesses the EEPROM 100d to be stored in the correction variable X.

The CPU 100a accesses the EEPROM 100d, refers to the time stamp, and integrates the detected value of the graininess detection sensor 73 between P / 4 and 3P / 4. Then, the normal deviation contained in the accumulated value is removed by using the value stored in the correction variable X. For example, the value stored in the correction variable X is subtracted from the accumulated value.

The CPU 100a stores, in the RAM 100c, the correction value D obtained by removing the normal deviation. Then, a coefficient (?) Is applied to the correction value (D) to obtain the amount of grain stored in the grapefruit tank (65).

Correction can be performed to remove the normal deviation when the grain detection sensor 73 is disposed at a position apart from the top face portion 72a and the slope face portion 72b. When the grit content detection sensor 73 is disposed on the top face portion 72a and the slope face portion 72b, correction for removing the normal deviation can not be performed. Hereinafter, the above-described Fig. 10 is used as an example of a graph showing the relationship between the detection value of the graininess detection sensor 73 and the detection value of the pickup sensor 161c, and the reason therefor will be described.

10A is a graph showing the relationship between the time and the detection value of the graininess detection sensor 73. Fig. The detected value of the grain-size detecting sensor 73 indicates the deformation amount due to the collision of the curved grain, and is a moving average value at a predetermined sampling number. The solid line in Fig. 10A shows the detection values of the grain size detection sensor 73 disposed on the top face portion 72a and the slope portion 72b. The two-dot chain line indicates the detection value of the grain size detection sensor 73 disposed at a position apart from the top face portion 72a and the slope face portion 72b. 10B is a graph showing the relationship between the time and the detection value of the pickup sensor 161c. In the following description, suffixes of the period P in Fig. 10 are appropriately omitted.

As shown in Fig. 26, a belt-shaped group of curved strips continuous to the lateral extension moves on the top face portion 72a and the slope face portion 72b. Therefore, when the grain size detection sensor 73 is disposed on the top face portion 72a and the slope face portion 72b, the grain boundary collides with the grain detection sensor 73 continuously during the period P. In other words, the curled-up collides between 0 to P / 4 and 3P / 4 to P where the curled-grain should not collide with the grain-diameter detecting sensor 73.

11, the detection values between 0 and P / 4 and between 3P / 4 and P in each of the periods P1, P2, and P5 in which the grains are charged into the grapefruit tank 65 are represented by two-dot chain lines Is greater than the detection value (detection value of the grain size detection sensor 73 disposed at a position apart from the top face portion 72a and the slope face portion 72b). This is because the curled-up collides between 0 to P / 4 and 3P / 4 to P where the curled-grain should not collide with the grain-diameter detecting sensor 73.

Further, in order to use the detection values between 0 P / 4 and 3 P / 4 through P for correction for eliminating the steady-state deviation, It is necessary to be able to consider that there is no collision with or collision with the collision avoiding portion 73. However, since the curled-up particles continuously collide with the graininess detection sensor 73 between 0 to P / 4 and 3P / 4 to P, the detection values between 0 to P / 4 and 3P / It can not be used for correction to remove deviation.

14) and a correction value calculating process (see Fig. 15) are executed similarly to the first to third embodiments in the combine according to the fourth embodiment.

In the combine according to the fourth embodiment, the detection result of the grain size detection sensor 73 detected during the period (non-contact period) during which the curled pour charged from the bucket 117 should not be contacted is regarded as a normal deviation due to the disturbance, The influence of the disturbance can be suppressed by correcting the detection result detected in the period to be required (contact period) based on the detection result detected in the non-contact period.

Since the curled-grain-amount detecting sensor 73 is disposed at a position spaced apart from the inclined surface portion 72b, a small amount of curled grains are momentarily brought into contact with the contact period, so that the detected value in the contact period and the detected value And the normal deviation can be removed based on the detection value of the non-contact period from the detection value in the contact period. The curled-grain-amount detecting sensor 73 is not limited to a position spaced apart from the inclined surface portion 72b, as long as the curled-grain-amount detecting sensor 73 is at a position where a small amount of curved grain contacts instantaneously. For example, it may be a position apart from the top face portion 72a.

The position of the pickup sensor 161c is also adjusted when the positions of the support plates 161 and 162 for supporting the sprockets 114 and 115 are adjusted in accordance with the extension of the conveyor chain 116, It can be accurately obtained even after adjustment of the feeding timing of the curved grains.

In the structure of the combine according to the fourth embodiment, the same reference numerals are given to the same components as those of the first to third embodiments, and a detailed description thereof will be omitted.

In the first to fourth embodiments, the periods 0 to P / 4 and 3P / 4 to P during which the curled-grain-amount detecting sensor should not contact the curled-grain-amount detecting sensor and the periods P / 4 to 3P / But the present invention is not limited thereto. The contact period and the non-contact period are determined according to the specification of each combine.

2: threshing device 4: grape tanks (reservoir)
4c: Push type switch 11:
23: Screw conveyor No. 1 (conveying means, screw conveyor)
23b: blade plate 40: engine
44: thresher clutch 51: pick-up sensor (rotational speed detecting means)
62: threshing section (threshing device) 65: grapefruit tank (storage section)
92: a grain-size detection sensor (detection means) 100: a control section (correction means)
100a: CPU 100b: ROM
100c: RAM 100d: EEPROM
100h: LUT 144: bucket-type elevator (conveying means)
144a: cloth face plate (guide face) 150: leveling disc (insert plate)
151, 152: blade portion (input blade)
153: disk unit 156: guide plate
158: pick-up sensor (passage detecting means) 300: pitching sensor (detecting means)
301: sensor main body (fixed portion) 302: steel plate (supporting portion)
302a: through hole 303: impingement plate (collision portion)
303a: receiving hole 304: screw

Claims (11)

A conveying means for conveying the curled paper to the storing portion; and a detecting means for detecting the amount of the curl charged by the conveying means In the combined combine,
And a guide plate having a guide surface for guiding the curl charged from the conveying means to the storage portion,
Wherein the detecting means is disposed at a position spaced apart from the guide plate,
Wherein the conveying means is a rotary type inlet plate having, on one surface thereof, a feed blade for feeding the curled grains thrown in the trolley to the storage portion,
Wherein the detection means is adapted to detect the amount of creeping granules input by the input plate,
A passage detecting means for detecting passage of the supplying blades,
And a correction means for correcting the detection result detected by the detection means in the contact period of the curl to the detection means, which is determined on the basis of the detection result of the passage detection means, based on the detection result detected by the detection means, And,
Wherein the guide plate is provided around the guide plate,
Wherein the detecting means is disposed at a position spaced apart from the guide surface or the extending surface of the guide surface at the end side of the guide path. The method according to claim 1,
The detection means is disposed on the opposite side of the guide plate or the guide surface from the end surface on the opposite side of the guide plate or on the line passing through the end portion of the guide portion on the leading end side of the guide path, Is disposed between the extension lines of the first and second projections. 3. The method according to claim 1 or 2,
Wherein a plurality of the input blades are provided,
Wherein a plurality of said input blades are arranged radially around the center of rotation of said input plate,
The inclination angle of one of the input blades is different from the inclination angle of the other input blades,
Wherein the curled-up portion inserted by the one input blade contacts the detecting means. 3. The method according to claim 1 or 2,
And the detecting means is disposed on the upper side of the storage portion. delete delete delete delete delete delete delete

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