JP6459862B2 - Crop picking harvester - Google Patents

Description

  The present invention relates to a crop picking and harvesting machine that picks up and harvests crops such as onions and garlic that have been dug up in a field scene.

  A conventional crop picking and harvesting machine is provided with a picking and transporting device for picking up and transporting a crop from the field, and a scraping device for scraping the crop is provided above the picking and transporting device and a collection container for collecting the crop is placed. A collection unit is provided. As a result, it is possible to prevent the crop that has reached the transport start end of the pick-up transport device from rolling down due to the inclination and remaining on the field, and the efficiency of the crop recovery operation is improved.

JP 2011-182694 A

  When picking up a crop, the crop picking and harvesting machine described above needs to bring the transport start end of the pick-up transport device as close as possible to the field scene, and at that time, it may come into contact with the field scene and receive a large load. An overload may also occur when a lump of soil that has been picked up with the crop and lifted to the transport device is clogged between the front and back of the transport bar or is caught between the transmission chain and the drive or driven sprocket.

  As a result, the overload is transmitted to the transmission system such as the transmission case and the transmission case through the pick-up and transport device, the transmission system is damaged, the pick-up and transport device does not operate, and the crop pick-up and harvesting work is interrupted. In addition, since it is necessary to replace parts significantly, the time and labor required for repair increase, crops cannot be harvested in a timely manner, and there is a problem that the quality of crops is lowered.

  In order to prevent the above problems, a drive sprocket provided on the transmission shaft that is transmitted to the pick-up conveyance device is mounted via a member that self-destructs when a torque exceeding a predetermined value such as a shear pin is applied. It is conceivable that the drive sprocket will idle when it breaks, and the overload will not be transmitted to the transmission system.

  However, when the shear pin is damaged and the drive sprocket is idle, it is necessary to prepare a new shear pin and install it with a tool. Therefore, there is a problem of spending extra work time and labor for replacing the shear pin. is there. Moreover, since it is necessary to return to picking up parts or tools when they are not brought near the field, there is a problem that the time required for the work becomes longer.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a crop picking and harvesting machine that is less likely to damage a picking and conveying device and a transmission system even when an overload occurs and has a short time during which the picking and harvesting operation is interrupted.

  The problems of the present invention are solved by the following technical means.

The invention according to claim 1 is provided with a pick-up and transport device (22) for picking up a crop, a scraping device (55) for scraping the crop into the pick-up and transport device (22), and the pick-up and transport device (22) In the crop picking and harvesting machine provided with the crop recovery member (39) for recovering the crop to be conveyed,
A transmission shaft (16) for transmitting a driving force is provided in the pick-up conveying device (22) and the picking-up device (55). When an overload is applied, the transmission of the driving force is interrupted and the pick-up conveying device (22) with stops write device (55), provided in the operation switching mechanism for actuating the conveying device picked up an excessive load is not applied (22) and scraping device (55) (56) a transmission shaft (16), wherein Left and right guide transport devices (33, 33) are provided outside the machine width of the pick-up transport device (22), and transmission pulleys (28, 28) are provided before and after each guide transport device (33). The transmission pulley (28, 28) is configured by winding a guide belt (30) provided with a plurality of conveying lugs (29) at predetermined intervals, and a guide cover (31) is provided above the front and rear transmission pulleys (28). The guide guide -(31) is provided with a guide drive motor (32) to drive the transmission pulley (28), and the left and right guide transport devices (33, 33) are picked up from the transport operation end of the pick-up transport device (22). The crop picking and harvesting machine is characterized by being configured to be rotatable in the outward direction of the machine body .

The invention according to claim 2 is provided with left and right rotation actuators (34, 34) for respectively rotating the left and right guide conveying devices (33, 33) toward the outer side of the machine body, and the left and right rotation actuators. Left and right rotation switching dials (34a, 34a) for operating (34, 34) and left and right guide switching dials (32a, 32a) for operating the rotational speeds of the left and right guide drive motors (32, 32) are provided. The crop picking and harvesting machine according to claim 1, wherein the left and right guide conveying devices (33, 33) are configured to be rotatable in the vertical direction .

According to a third aspect of the present invention , a control cover (12) is provided at a transfer terminal portion of the pick-up transfer device (22), and the pick-up transfer device (22) is located on the other side of the control cover (12). A discharge shooter (37) is provided for receiving the crop discharged from the vehicle and guiding it to the left and right center of the machine while guiding it to the rear of the machine. The discharge shooter (37) is the center in the horizontal direction of the machine and lowers the crop to the lower rear side. A rear inclined plate (37a) that guides the discharge and the left and right other end portions of the pick-up conveying device (22) are inclined downward toward the rear inclined plate (37a) to guide the crop to the rear inclined plate (37a). A crop collecting table (39) provided with a damper mechanism, which is composed of a guide inclined plate (37b) and has a downwardly inclined posture as the weight of the stored crop increases, is provided below the rear inclined plate (37a). Special Crops according to claim 1 or 2, pick up the harvester.

According to a fourth aspect of the present invention, the pick-up conveyance device (22) is configured by arranging a plurality of conveyance bars (21) at predetermined intervals, and the conveyance bars (21) are arranged between the conveyance bars (21). Provided with an interval adjusting member (21a) capable of entering the interval portion and having an elliptical cross-sectional view,
The crop picking and harvesting machine according to any one of claims 1 to 3, wherein an elliptical portion of the interval adjusting member (21a) can be changed to a posture facing the vertical direction and the front-rear direction of the machine body .

(Delete)

  According to the first aspect of the present invention, when an overload is applied, the operation switching mechanism (56) is operated to stop the pick-up transport device (22) and the pick-up device (55). 22), the scraping device (55), and the transmission system of the fuselage can be prevented from being damaged, so that the picking up and harvesting work of the crop due to damage or repair is not interrupted, the work efficiency is improved and the durability is improved. Will improve.

In addition, the operation switching mechanism (56) operates the pick-up transport device (22) and the pick-up device (55) when the overload is not applied, so that the pick-up transport device (22) and the pick-up device each time overload is applied. Since the operation for operating the insertion device (55) becomes unnecessary, the work efficiency is improved.
Further, by providing the left and right guide conveyance devices (33, 33), it is possible to pick up the crops located near the edge of the straw and guide them to the conveyance device (22), thereby preventing the generation of the crops left in the field.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the operator who operates the machine body appropriately rotates the left and right guide conveying devices (33, 33) in accordance with the position of the crop on the fence. Therefore, it is not necessary to collect the crops left on the field without being picked up by the pick-up and transfer device (22), so that the work efficiency can be improved and the labor of the worker can be reduced.

Further, when the crops are gathered near the center of the culm, the amount of rotation of the left and right guide transport devices (33, 33) is reduced so as to be positioned in a substantially straight line in front of the left and right transport covers (23, 23). This prevents the traveling speed from being lowered due to the contact resistance with the earth and sand, and prevents the crop from flowing back from the pick-up and transfer device (22) due to vibration of the machine body.

(Delete)

(Delete)

In addition to the effect of the first or second aspect, the invention according to claim 3 is configured such that when a crop of a predetermined weight or more is accommodated, the crop recovery table (39) automatically rotates downward. 39), the collection container (38) can be automatically lowered onto the field, and the operator does not need to manually drop the collection container (38) whose weight has been increased, thereby improving the work efficiency and labor required for the work. Mitigation is achieved .

(Delete)

In the invention according to claim 4, in addition to the effect of any one of claims 1 to 3 , the spacing bar (21a) is provided on the transport bar (21) in a posture in which the elliptical part faces the front-rear direction. Then, the distance between the front and rear of the transport bars (21) becomes narrow, so that it is possible to prevent picking up small-sized crops and dropping them below the transport device (22), thereby increasing the crop yield.

Further , when the conveyance bar (21) is provided with the interval adjusting bar (21a) with the elliptical portion facing up and down, the distance between the conveyance bars (21) is widened. Since it can be reliably discharged downward, there is no need to separate the crop and the soil, and the work efficiency can be improved and the labor of the worker can be reduced.

Further, by allowing the spacing adjusting member (21a) to enter the space between the transport bars (21), it is possible to prevent crops having a small size from falling off from the space between the transport bars (21). This eliminates the need for picking up the harvested crops and prevents extra time and effort from being spent.

Further, by retracting the interval adjusting member (21a) from the interval portion, foreign matters such as earth and sand can be discharged from the interval portion between the transport bars (21), so that the cause of the overload is removed. Further, it is possible to prevent the foreign matter entering the crop recovery member (39) from decreasing the crop storage space.

(Delete)

Side view of crop picking harvester Top view of crop picking harvester Torque limiter side view Block diagram showing the relationship of each member related to control Flow chart showing deceleration control of continuously variable transmission based on slip ratio of torque limiter (A) Side view of the transport bar equipped with the spacing adjustment bar, (b) Front view of the transport bar equipped with the spacing adjustment bar, (c) With the spacing adjustment bar inserted into the gap between the conveyance bars Side view of the transport bar, (d) Front view of the transport bar in a state in which the spacing adjustment bar is inserted into the space between the transport bars (A) Side view of the spacing adjustment bar, (b) Plan view of the alignment cover

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. In this specification, the left and right directions in the forward direction of the aircraft are referred to as left and right, respectively, the forward direction is referred to as forward, and the reverse direction is referred to as rear.

  As shown in FIGS. 1 and 2, the engine 2 is provided on the left and right sides (left side of the body) of the body frame 1, and the transmission case 3 that transmits the driving force supplied from the engine 2 is disposed on the lower front side of the engine 2. . Further, the crawler frames 5 and 5 are provided so as to penetrate the traveling transmission shafts 4 and 4 projecting from the transmission case 3 to the left and right sides, the traveling transmission shafts 4 and 4 are provided with traveling sprockets 6 and 6, and the crawler frame. 5 and 5 are provided with a plurality of rollers 7 and 7 rotatably. Then, the crawler belts 8 and 8 are wound endlessly around the left and right traveling sprockets 6 and 6 and the plurality of rollers 7 and 7 to constitute the left and right traveling crawlers 9L and 9R.

  Note that the left and right traveling crawlers 9L and 9R are arranged on the outer side of the body rather than the left and right outer sides of the body frame 1, respectively.

  A fuel tank 10 is provided in the upper part of the engine 2, and a hydraulic continuously variable transmission (HST) 11 for outputting the driving force of the engine 2 forward and backward and stopping the output is provided on the front side. The upper and left and right sides of the continuously variable transmission 11 and the engine 2 are covered with a steering cover 12, and a U-shaped handle bar 13 is provided on the steering cover 12 on the rear side of the machine body in a plan view with an operator's hand. Protrusively provided.

  Further, on the left and right other side (right side of the body) of the control cover 11, the left and right side driving clutches 9L and 9R are turned on and off by turning on and off the driving transmission clutch built in the transmission case 3. A clutch lever groove is formed so that the side clutch levers 14 and 14 can be turned on and off in the front-rear direction. On the other hand, on the left and right sides of the control cover 11, a trunnion shaft (not shown) of the continuously variable transmission 11 is rotated to change the angle of the swash plate, and the output direction and output of the continuously variable transmission 11 are changed. A shift lever groove 15a having a U-shape in a plan view is formed so as to be movable. Of the transmission lever groove 15a, the front left and right end portions are set to the maximum operation positions on the forward side and the reverse side, respectively, and the rear left and right center portions are set to the stop operation positions.

  The transmission lever 15 and the trunnion shaft are configured such that the trunnion shaft rotates in accordance with the operation of the transmission lever 15 by a link member (not shown) such as a rod or a cable, or the operation position of the transmission lever 15 is changed. A shift operation sensor 15b for detecting is provided, a trunnion rotation motor 11b for rotating the trunnion shaft via the rotation arm, and a trunnion potentiometer 11c for detecting the rotation angle of the rotation arm are provided. The trunnion shaft is rotated in accordance with this detection, and the output of the continuously variable transmission 11 is changed.

  A relay transmission case for transmitting a driving force upward from the transmission case 3 is provided, and a pick-up drive shaft 16 is provided in the relay transmission case from the left and right sides of the machine body to the left and right sides. Conveying drive sprockets 17 and 17 are provided between the left and right of the left and right traveling crawlers 9L and 9R and on both left and right sides of the pick-up drive shaft 16, respectively. The left and right conveying drive sprockets 17 and 17 are long in the front-rear direction. It is installed in the transport frames 18 and 18.

  Also, transport driven sprockets 19, 19 are rotatably provided on the front side of the body of the left and right transport frames 18, 18, that is, on the front end side, respectively, and the left and right transport driven sprockets 19, 19 and the left and right transport drive sprockets 17, The transport transmission chains 20 and 20 are wound endlessly over 17. Further, between the left and right of the left and right transport transmission chains 20, 20, a plurality of transport bars 21 for placing and transporting crops are arranged at predetermined intervals in the front-rear direction, whereby a pick-up transport device 22 is configured. Is done.

  In addition, tension sprockets (not shown) are appropriately provided between the left and right transport driven sprockets 19 and 19 and the left and right transport drive sprockets 17 and 17 to cause a transport failure due to the slack of the transport transmission chains 20 and 20. It is set as the structure which prevents.

  The transport bar 21 may have a columnar shape or a prismatic shape, but may have a shape in which a protrusion is positioned at least when the transport bar 21 is located at least in the transport action area of the pick-up transport device 22, that is, on the upper side of the machine body. By arranging these transport bars every few, it can be used as a cross to catch crops that fall toward the transport start end during transport, and crops are prevented from falling to the field, and are not picked up and harvested This eliminates the need to collect crops, improving the work efficiency and reducing the labor of workers.

  Alternatively, by alternately changing the vertical positions of the plurality of transport bars 21 in the front-rear direction, a recess may be formed in the transport action area of the pick-up transport device 22, and the crop may not easily fall down due to the recess.

  Further, as shown in FIGS. 6A to 6D and FIGS. 7A and 7B, the conveyance bar 21 is provided with a space adjusting bar 21a which is a hollow cylinder having an elliptical sectional view. To do. The interval adjusting bar 21a in which the elliptical portion is oriented in the vertical direction is brought into contact with the conveyance bar 21, or the elliptical portion is provided in the conveyance bar 21 in the posture in which the elliptical portion is oriented in the front-rear direction. The width of the interval may be changeable.

  In addition, when the interval adjusting bars 21a are respectively attached to all the conveying bars 21, when the elliptical portion of the interval adjusting bars 21a is oriented in the up-and-down direction, the interval between the conveying bars 21 becomes too wide, and the size is relatively large. Since there is a possibility of dropping down to a large crop, the conveyance bar 21 provided with the interval adjustment bar 21a and the conveyance bar 21 not provided are alternately or provided with the interval adjustment bar 21a every several.

  However, the length and shape of the interval adjusting bars 21a may be changed, and the interval adjusting bars 21a may be provided on all the transport bars 21.

  If the conveyance bar 21 is provided with the interval adjusting bar 21a in the posture in which the elliptical part is directed in the front-rear direction, the front-rear distance between the conveyance bars 21 is narrowed, so that a small-sized crop is prevented from being picked up and dropped below the conveyance device 22. And crop yield increases.

  On the other hand, if the conveyance bar 21 is provided with the interval adjusting bar 21a with the elliptical portion facing up and down, the distance between the front and rear of the conveyance bars 21 is widened, so that the earth and sand can be picked up and reliably discharged below the conveyance device 22. As a result, it is not necessary to separate the crop from the soil, improving work efficiency and reducing the labor of the worker.

  In addition, since the interval adjusting bar 21a protrudes upward, it becomes a wall that catches the crop, so that it can be prevented that the crop being transported rolls down and falls off the pick-up transport device 22, and the crop is left on the field. It is prevented that the crop is picked up and stays in the transfer operation area of the transfer device 22 and does not move to the discharge shooter 37, and the work efficiency is improved.

  Transport covers 23 and 23 are detachably provided on the left and right outer sides of the left and right transport frames 18 and 18 and on the inner side of the machine body from the left and right traveling crawlers 9L and 9R. A connecting plate (not shown) is provided between the left and right of the transport covers 23, 23, and a picking up / down cylinder 46 for vertically moving the picking up and transporting device 22 is provided between the connecting plate and the body frame 1 so as to extend and retract. The conveyance angle of the conveyance device 22 is configured to be changeable according to the soil quality or the like of the field.

  Further, as shown in FIG. 1 and FIG. 2, on the front side of the pick-up transport device 22, it enters the lower part of the crop to float the crop from the field scene and guides it to the upper surface of the pick-up transport device 22, that is, the transport action surface. A pick-up blade 24 is provided. The upper surface of the pick-up blade 24 is a rearwardly inclined posture that goes from the farm scene to the position just before the transfer start end of the pick-up transfer device 22, but it may not be linear but may have a gentle arc shape with a protruding surface below the fuselage. .

  Further, the pick-up blade 24 may be formed into a frame shape by removing the portions other than the front, rear, left and right ends, and the lifting and conveying device 25 rotating to the pick-up and conveying device 22 side in the frame may be arranged in a back-up tilt posture. The lifting and conveying device 25 is configured to be driven by rotating a lifting drive pulley 25a from the rotation shafts of the left and right conveying driven sprockets 19 and 19 via a transmission crank arm 26. In addition, in order to prevent the crops being conveyed by the lifting and conveying device 25 from being damaged, the conveying unit may be constituted by a belt.

  As shown in FIGS. 1 and 2, the guide frames 27 and 27 are picked up at the front ends of the left and right transport covers 23 and 23 and outside the transport width of the pick-up transport device 22. Each of the left and right guide pulleys 27, 27 is provided with transmission pulleys 28, 28 at the front end and the rear end of the left and right guide frames 27, 27, respectively. The guide belts 30 and 30 each having a plurality of conveying lugs 29 at predetermined intervals are wound endlessly. Further, guide covers 31, 31 are provided above the transmission pulleys 28, 28, respectively, and guide drive motors 32, 32 are provided on the left and right guide covers 31, 31, respectively. Configure.

As shown in FIG. 1, the pick-up blade 24 and the left and right guide conveying devices 33, 33 may be configured to be rotatable in the vertical direction.

  The left and right guide transport devices 33 and 33 are moved closer to the inner side of the machine body as they are turned to the inner side of the machine body, and closer to the outer side of the machine. By approaching the side, that is, the end side of the cocoon, the crop located near the end of the cocoon is picked up and guided to the conveying device 22 to prevent generation of a crop left in the field.

  As described above, the crops located near the left and right ends of the transport width of the pick-up transport device 22 can be brought to the pick-up transport device 22 side by the transport lugs 29 that are moved by the rotation of the guide belts 30, 30. The crops located at the left and right ends of the transfer device 22 can be reliably lifted and guided, the work of collecting the crops left on the field becomes unnecessary, and the work efficiency is improved and the labor of the worker is reduced. .

  In addition, since the crops can be prevented from falling into the troughs formed on the left and right sides of the reed, the left and right traveling crawlers 9L and 9R can be prevented from stepping out of the crops and excluded from being harvested. Reduction is prevented.

  Further, since it is not necessary to stop the machine body and pick up the crop from the culvert groove in order to prevent the left and right traveling crawlers 9L and 9R from stepping on the crop, the work efficiency is prevented from being lowered.

  Further, rotation actuators 34 and 34 (described in FIG. 5) for rotating the left and right guide conveying devices 33 and 33 are provided, respectively, and the rotation actuators 34 and 34 are operated on the steering cover 12 to operate the left and right guides. You may comprise so that the rotation amount of the conveying apparatuses 33 and 33 can be changed arbitrarily.

  It should be noted that guide switching dials 32a and 32a for operating the rotational speeds of the guide drive motors 32 and 32 and rotation switching dials 34a and 34a for operating the actuation amounts of the rotation actuators 34 and 34 are provided on the control cover 12. .

  Thereby, since the operator who operates the body behind the control cover 12 can appropriately change the amount of rotation of the left and right guide transport devices 33, 33 in accordance with the position of the crop on the rod, the pick-up transport device Therefore, it is not necessary to collect the crops left on the field without being placed on the machine 22, so that the work efficiency can be improved and the labor of the worker can be reduced.

  Further, when the crops are gathered near the center of the culm, the amount of rotation of the left and right guide transport devices 33, 33 is reduced and positioned in a substantially straight line in front of the left and right transport covers 23, 23, so that It is possible to prevent the traveling speed from being lowered due to the contact resistance with the head, and the machine body from vibrating and picking up the crops from the conveying device 22.

  Further, as shown in FIG. 2, on the left and right sides of the pick-up transport device 22, a transport upper cover 35 having a shape in which the area covering the upper side in the transport direction lower side is widened in plan view is provided. A protective cover 36 in the vertical direction is provided at the other side end to prevent the crop from approaching the left and right side end of the pick-up transport device 22. Among the crops transported by the pick-up and transport device 22 by the protective cover 36, those located on one side of the left and right sides of the machine are guided to the left and right other sides toward the lower side in the transport direction (the rear side of the machine). Then, it will be guided to the center of the aircraft.

  Then, at the conveyance end portion of the pick-up conveyance device 22 and at the left and right side positions with respect to the control cover 12, the crops discharged from the pick-up conveyance device 22 are received and guided to the rear side of the aircraft while being brought to the left and right center of the aircraft A shooter 37 is provided. The discharge shooter 37 is inclined to the rear inclined plate 37a from the left and right other end portions of the pick-up conveying device 22 to the rear inclined plate 37a. Is constituted by a guide inclined plate 37b that guides the rear inclined plate 37a.

  The left and right sides of the pick-up transport device 22 do not need to be provided with the constituent members of the discharge shooter 37 because the protective cover 36 guides the crop closer to the center of the machine as the lower side of the transport treasure, and the crop does not approach. The control cover 12 and the engine 2 can be arranged.

  Further, as shown in FIGS. 1 and 2, a crop collection stand 39 for loading a collection container 38 such as a container for collecting crops is disposed below the rear inclined plate 37 a of the discharge shooter 37 so as to be rotatable up and down. To do. The crop collection base 39 is formed in a frame shape, and the container transport rollers 40 are rotatably arranged at predetermined positions in the front-rear direction within the frame. Further, the crop collection table 39 is urged upward by an air cylinder, a torque spring, or the like and is disposed at a normal collection position, and assumes a downward inclined posture as the weight of the crop accommodated in the collection container 38 increases. A so-called damper mechanism is provided.

  With the above configuration, the crop collection table 39 automatically rotates downward when a crop of a predetermined weight or more is stored in the collection container 38, so that the collection container 38 can be automatically lowered from the crop collection table 39 to the field. Thus, it is not necessary for the operator to manually drop the collection container 38 whose weight has been increased, so that the work efficiency can be improved and the labor required for the work can be reduced.

  When there is no crop stored in the collection container 38 or the quantity is small, the crop collection table 39 is arranged in an upward inclined posture toward the rear side of the aircraft, and the collection container 38 is also inclined upward toward the rear side of the aircraft. Since it is in the posture, the front upper part of the collection container 38 approaches the rear inclined plate 37a, so that the fall distance of the crop is shortened, the crop is prevented from being damaged by the impact of the fall, and the commercial value of the crop is maintained. The At this time, if the crop collection stand 39 is configured to descend downward as the weight of the collection container 38 increases, the crop stored at the time of lowering can be moved to the rear of the collection container 38. It is prevented that they hit each other and get damaged.

  Further, when the crop is stored in the collection container 38 up to a predetermined weight, if it is not desired to lower the collection container 38 in the field, the crop collection table 39 can be rotated further to a position that is substantially parallel to the handlebar 13. You may provide the lock member (illustration omitted) which regulates below downward rotation. At this time, as shown in FIG. 2, an empty collection container 38 and a container mounting table 42 on which a worker arbitrarily places a collection container 38 containing crops are picked up outside the left and right other sides of the transporting device 22. Further, the collection container 38 may be placed at a position spaced upward from the farm scene and the container placement table 42 may contain the crop.

  With the above configuration, even when the weight of the crop stored in the recovery container 38 exceeds a predetermined weight, the crop recovery table 39 does not rotate downward, so that the crop can be recovered to the full capacity of the recovery container 38. The frequency of loading the crop on the crop collection table 39 or moving the crop from the crop collection table 39 to the container mounting table 42 is reduced, so that the work efficiency can be improved and the labor spent on the work can be reduced.

  Further, since the operation can be continued in a state where the collection container 38 containing the crop is placed on the container mounting table 42, it is not necessary to go around a plurality of positions in the field and collect the collection container 38 whose weight has increased. , Work efficiency is improved.

As shown in FIG. 2, empty collection containers 38 are placed on the left and right sides of the crop collection table 39. When the collection container 38 is removed from the crop collection table 39, the empty collection container 38 is removed from the crop collection table 39. An automatic loading mechanism 43 for moving to the collection table 39 is provided. The automatic loading mechanism 43 is provided with a frame-shaped loading frame 44 that is inclined downward from the left and right other sides toward the left and right sides on the rear side and the lower side of the pick-up conveying device 22. The loading rollers 45 are arranged at predetermined intervals in the left-right direction. The left and right other end portions of the collection container 38 placed on the crop collection table 39 come into contact with the empty collection container 38 conveyed to the left and right one end portions by the automatic loading mechanism 43, thereby serving as a stopper. To fulfill.

  With the above configuration, the movement of the empty collection container 38 by the automatic loading mechanism 43 is automatically regulated while the crop collection table 39 is collecting the crop, and the empty container is removed when the collection container 38 is removed from the crop collection table 39. The collection container 38 is moved to the left and right sides by the loading roller 45 and is automatically placed on the position where the crop is collected. Therefore, when the collection container 38 is exchanged, the machine body is moved and picked up and the harvesting operation is stopped. Work time is shortened and work efficiency is improved.

  As shown in FIGS. 1 and 2, on the side where the left and right side (machine body left side) transport drive sprocket 17 is provided and between the left and right side transport cover 23 and the left and right of the traveling crawler 9L, A bayonet transmission case 47 is provided, and an elevating and lowering cylinder 48 for rotating the bayonet transmission case 47 up and down is provided. Also, in the drive transmission case 47, a drive drive sprocket 49 mounted on the drive shaft 16 that is picked up similarly to the transfer drive sprocket 17, a drive driven sprocket 50 rotatably arranged on the front side of the machine body, A drive transmission chain 51 that is wound endlessly around the drive drive sprocket 49 and the drive driven sprocket 50 is provided.

  One or more tension sprockets (not shown) for preventing slackening may be provided in the winding region of the drive transmission chain 51.

  Further, a cylindrical scribing drum 52 is mounted on the left and right other sides of the driven rotation shaft 50a of the driven slave sprocket 50, that is, on the side closer to the center of the machine body, and a predetermined interval is provided around the outer periphery of the driving drum 52. A plurality of scrambling arms 53 are mounted, and each scrambling arm 53 is provided with a scoring plate 54 made of a soft member such as rubber so as to be rotatable to constitute a scrambling device 55.

  The scraping device 55 rotates counterclockwise in a side view, picks up the crop at the transport start end of the pick-up transport device 22 by the pick-up plate 54, and pushes it up to the lower side in the transport direction of the transport device 22, This is to ensure that the crop is transported reliably.

  With the above configuration, the crops fall down toward the conveyance start end side of the pick-up conveyance device 22 and come into contact with the crop before picking up, or the crops fall into the troughs and are crushed by the left and right traveling claws 9L and 9R. This can prevent crops from being damaged and the product value from being reduced.

Further, by the take write device 55 moves the crop in the transport direction downstream side of the conveying device 22 picks up the crop can prevent the crop to the conveying starting end of the transport apparatus 22 picks up stagnates, transport picking up the operator The work of picking up crops from the apparatus 22 is not necessary, and the work efficiency is improved and the labor required for the work is reduced.

  The pick-up transport device 22 and the pick-up device 55 obtain a driving force from the common pick-up drive shaft 16 to synchronize the pick-up transport speed and the pick-up rotation speed, so that the crop returns to the field, Prevents falling. However, since the force required for driving increases accordingly, the overload is picked up and rotated when the transport start end portion of the pick-up transport device 22 thrusts into the earth or when the crop stagnates between the picking device 55 and the pick-up transport device 22. Joining the shaft 16 may cause damage.

  In order to prevent this problem, as shown in FIG. 3, a torque limiter 56 that stops the rotation of the rotary shaft 16 by causing the transport drive sprocket 17 to idle when an overload, that is, a torque exceeding a predetermined value, is applied. It is provided inside the transport cover 23 on the left and right sides and on the left side of the pick-up transport device 22. The torque limiter 56 is arranged so that the transport drive sprocket 17 is sandwiched from the left and right, and the rotation of the transport drive sprocket 17 is stopped when the torque limiter 56 is in a non-transmission state. Then, the left and right other side surfaces of the transport drive sprocket 17 are arranged along the left and right side surfaces of the pick-up drive sprocket 49, and when the rotation of the transport drive sprocket 17 stops, the pick-up drive sprocket 49 also stops.

  The torque limiter 56 is provided with brake linings 57, 57 on the left and right sides of the transport drive sprocket 17, and an auxiliary lining 58 that contacts the left brake lining 57 and applies friction to the left and right sides. A concave portion 58a having a concave shape in plan view is formed at the left and right side end portions of the auxiliary lining 58, and the outer peripheral edge portion of the disc spring 59 is brought into contact with the concave portion 58a. On the left and right sides of the disc spring 59, a torque adjustment handle 60 for adjusting the strength of the disc spring 59 in contact with the auxiliary lining 58 to increase or decrease the torque is provided to be rotatable.

  On the other hand, the left and right brake linings 57 are configured to be in contact with the left and right end portions of a limiter hub 61 provided on the outer periphery of the pick-up rotary shaft 16. In the limiter hub 61, a torque measuring portion 61a is formed on the other side of the left and right sides of the limiter hub 61 with respect to the brake lining 57 on the other side. In addition, a left and right recess 61b is formed at one end of the limiter hub 61 on the left and right sides, and a nut 62 that picks up the limiter hub 61 and is attached to the rotary shaft 16 is formed. The nut 62 is housed in the recess 61b. .

  The torque adjustment handle 60 is provided on the outer peripheral portion on the left and right sides of the limiter hub 61.

  With the above configuration, when an overload of a predetermined torque or more is applied to the pick-up transport device 22 and the pick-up device 55, the left and right brake linings 57, 57 and the auxiliary lining 58 come into contact with each other to rotate the transport drive sprocket 17 so that the pick-up rotation Since the rotation of the shaft 16 stops and the pick-up drive sprocket 49 also stops rotating, it is possible to prevent the pick-up conveying device 22 and the pick-up device 55 from operating in a state where an overload can occur. It is prevented from being damaged by the load.

  Further, by providing the recess 61b at the left and right side end portions of the limiter hub 61, the nut 62 fits within the left and right width of the limiter hub 61, so that there is no member protruding to the left and right sides of the torque limiter 56, and the torque limiter 56 By making the left and right width short, the left and right width of the aircraft can be made compact.

  Since the torque adjustment handle 60 is provided on the left and right outer peripheral portions of the limiter hub 61, the torque adjustment handle 60 can be operated as soon as the left transport cover 23 is removed. Since the torque applied by the torque limiter 56 can be set in accordance with the pick-up start height, transmission of the driving force can be stopped before the pick-up rotary shaft 16 is broken, and the pick-up harvesting operation is prevented from being interrupted. .

  Further, by stopping the rotation of the picking device 55 as well as the picking and conveying device 22, the operator can visually confirm the operation of the torque clutch 56, so that the picking and conveying device 22 and the picking device 55 It is possible to prevent the aircraft from moving forward without noticing the stop, so that no extra work is performed and work efficiency is improved.

  In addition, since the torque measuring part 61a is formed in the limiter hub 61, the location where the torque measuring wrench is engaged is easily understood, so that the efficiency of the torque measuring work is improved, the torque value is easily measured, and the torque value is set. Damage due to mistakes is prevented.

  In order to generate a clicking sound when the left and right brake linings 57 and 57 and the auxiliary lining 58 come into contact with each other, a sounding protrusion (not shown) that generates a sound on the contact surfaces of the left and right brake linings 57 and 57 and the auxiliary lining 58 is illustrated. (Not shown), the operator can be notified of the possibility of an overload not only by stopping the rotation of the take-in device 55 but also by the operating sound of the torque clutch 56. It can be resolved early.

  Further, it is necessary to provide an additional or replacement disc spring 59 in the torque measuring unit 61a and replace the disc spring 59 entering the concave portion 58a of the auxiliary lining 58 when it is damaged, so that the disc spring 59 needs to be taken outside the machine. As a result, the work efficiency and the time and labor required to replace the disc spring 59 are reduced.

  Alternatively, when sufficient torque is not generated with only one disc spring 59, a high torque can be set by overlapping the disc spring 58, so that it is possible to set the torque limiter 56 suitable for the working conditions. Become.

  As shown in FIGS. 4 and 5, the torque limiter 56 is provided with a slip sensor 63 for detecting slip, and the detected value of the slip sensor 63 is transmitted to the control device 64, and the trunnion rotation is performed via the control device 64. It is good also as a structure which reduces the output of the continuously variable transmission 11 by operating the motor 11b and changing the rotation amount of the said trunnion shaft.

  With the above configuration, the traveling speed of the picking and harvesting operation can be reduced by reducing the output of the continuously variable transmission 11 in accordance with the slip rate when the torque limiter 56 is operated. Since it becomes difficult to apply a load to the device 55, damage due to overload is prevented. The slip ratio and the output reduction of the transmission 11 have an inversely proportional relationship in which the output decreases as the slip ratio increases.

  If the slip ratio exceeds a predetermined height, it can be determined that a high load is applied accordingly, so that the output of the continuously variable transmission 11 may be stopped to prevent breakage.

11 continuously variable transmission 11b trunnion rotation motor (output switching actuator)
12 Steering cover 16 Pick-up drive shaft (transmission shaft)
17 Conveyance drive sprocket (conveyance drive rotating body)
21 Transport bar 21a Spacing adjustment bar (spacing adjustment member)
22 Pick-up conveyor
28 transmission pulley
29 transport lugs
30 guide belt
31 guide cover
32 guide drive motor
32a guide switching dial
33 guide conveyor
34 rotation actuator
34a rotation switching dial
37 discharge shooter
37a rear inclined plate
37b guide inclined plate 39 Crop collection stand (Crop collection member)
49 Drive-drive sprocket (take-drive rotator)
55 Take-in device 56 Torque limiter (operation switching device)
57 Brake lining (friction member)
58 Auxiliary lining (Auxiliary friction member)
59 Disc spring (spring member)
60 Torque adjustment handle (Adjustment operation member)
61 Limiter hub (hub member)
61b Torque measurement section (measurement recess)
63 Slip sensor (slip detection member)

Claims (4)

A pick-up and transport device (22) for picking up a crop, a pick-up device (55) for scraping the crop into the pick-up and transport device (22), and a crop recovery member for collecting the crop transported by the pick-up and transport device (22) In the crop picking and harvesting machine provided with (39),
A transmission shaft (16) for transmitting a driving force is provided in the pick-up conveying device (22) and the picking-up device (55). When an overload is applied, the transmission of the driving force is interrupted and the pick-up conveying device (22) with stops write device (55), provided in the operation switching mechanism for actuating the conveying device picked up an excessive load is not applied (22) and scraping device (55) (56) a transmission shaft (16), wherein Left and right guide transport devices (33, 33) are provided outside the machine width of the pick-up transport device (22), and transmission pulleys (28, 28) are provided before and after each guide transport device (33). The transmission pulley (28, 28) is configured by winding a guide belt (30) provided with a plurality of conveying lugs (29) at predetermined intervals, and a guide cover (31) is provided above the front and rear transmission pulleys (28). The guide guide -(31) is provided with a guide drive motor (32) to drive the transmission pulley (28), and the left and right guide transport devices (33, 33) are picked up from the transport operation end of the pick-up transport device (22). A crop picking and harvesting machine characterized by being configured to be rotatable in the outward direction of the machine body . Left and right turning actuators (34, 34) for turning the left and right guide conveying devices (33, 33) toward the outer side of the machine body are provided, and the left and right turning actuators (34, 34) are operated. Rotation switching dials (34a, 34a) and left and right guide switching dials (32a, 32a) for operating the left and right guide drive motors (32, 32). 33) The crop picking and harvesting machine according to claim 1, wherein each of the first and second 33) is configured to be rotatable in the vertical direction . A steering cover (12) is provided at a conveyance terminal portion of the pick-up conveyance device (22), and the machine body receives crops discharged from the pick-up conveyance device (22) at positions on the left and right sides of the control cover (12). A discharge shooter (37) is provided for guiding the vehicle rearward while approaching the left and right central portion, and the discharge shooter (37) is a central portion in the left-right direction of the vehicle body, and a rear inclined plate (37a) for discharging and guiding crops to the lower rear side. And a guide inclined plate (37b) for inclining downward from the left and right other end portions of the pick-up conveying device (22) toward the rear inclined plate (37a) and guiding the crop to the rear inclined plate (37a). , below the rear inclined plate (37a), the weight of the crop to be accommodated, characterized in that the crop collecting table comprising a damper mechanism comprising a downwardly inclined posture (39) provided with increasing claim 1 or 2 Crop picked up harvesting machine according. The pick-up transport device (22) is configured by arranging a plurality of transport bars (21) at predetermined intervals, and can enter the space between the transport bars (21) into the transport bar (21). A distance adjusting member (21a) having an elliptical cross-sectional view is provided;
The crop picking and harvesting machine according to any one of claims 1 to 3, wherein the oval part of the interval adjusting member (21a) can be changed to a posture in which the vertical direction and the front-rear direction of the machine body are directed .

Images