JP2017175997A - Crop pick-up harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crop pick-up harvester in which the crops being picked up are accumulated in a storage unit and can be loaded directly on a loading platform of a transport cart and a truck if the storage unit becomes full of the crops, and thereby the work of picking up a harvesting bag and a container being left in the field and carrying them to the crop processing plant is eliminated to save labor.SOLUTION: A crop pick-up harvester is provided in which a scraping device 55 and a pick-up conveyance device 22 are provided in a machine body frame 1 capable of traveling with a traveling device 9, and the crops existing in the field are mounted on the pick-up conveyance device 22 and conveyed to a crop storage unit 38 in the rear of a machine body. The crop pick-up harvester is characterized in that the crop storage unit 38 can be lifted by a lifting/lowering mechanism 44.SELECTED DRAWING: Figure 1

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 and left in a field scene.

  As described in Patent Document 1, the conventional vegetable harvesting machine is provided with a pick-up transport device that picks up and transports a crop from the field, and a scraping device that scrapes the crop above the pick-up transport device, The rear part of the machine body is equipped with a storage unit for storing the crops transported backward by the pick-up transport device in a harvesting bag.

JP 2011-182694 A

  In the above-mentioned vegetable harvesting machine, when the harvest bags and containers filled with crops reach the loading limit in the storage unit, they are put down on the field, picked up later, loaded onto a transport cart or truck, and carried to the crop processing plant.

  The present invention collects the picked-up crops in the storage unit, and when the storage unit is full of crops, it can be loaded directly onto a carrier truck or truck bed so that the harvested bags and containers left in the field can be collected. The task is to save labor by eliminating the work to be carried to the crop treatment plant.

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

  According to the first aspect of the present invention, a picking device (55) and a pick-up conveying device (22) are provided on the body frame (1) that can be traveled by the travel device (9), and the crops in the field are picked up. In the crop picking and harvesting machine that is placed on the transport device (2) (2) and transported to the crop storage unit (38) at the rear of the machine, the crop storage unit (38) can be raised by the lifting mechanism (44). A special crop picking and harvesting machine.

  According to the second aspect of the present invention, the box column (41) is erected on the left and right sides of the crop storage box (39) so that when the crop storage section (38) is lifted, the inner bottom section (39b) is inclined backward. The left and right airframe posts (40) standing on the airframe frame (1) are connected by an upper link (42a) and a lower link (42b), respectively, to form an elevating mechanism (44). The crop picking and harvesting machine described.

  The invention according to claim 3 is provided such that the rear door (39c) is suspended from the rear part of the crop accommodating part (38) so that the rear door (39c) is opened when the crop accommodating part (38) is raised. The crop picking and harvesting machine according to claim 2, which is characterized by the above.

  In the invention according to claim 4, the crop accommodating part (38) is approached to the lower end of the pickup conveying device (22), and the front inner bottom part (39a) of the crop accommodating part (38) where the crop falls is placed in front. The crop picking and harvesting machine according to claim 1, wherein the crop picking and harvesting machine according to claim 1 is inclined downward and high toward the rear.

  The invention according to claim 5 is characterized in that a flexible discharge shooter (3) is provided at the lower end of the pick-up and transfer device (22) so as to incline toward the inside of the crop container (38). The crop picking and harvesting machine according to claim 1.

  According to the sixth aspect of the present invention, the crop accommodating portion (38) is constituted by a fork (70) on the airframe side and a crop accommodating box (39) that can be attached to and detached from the fork (70). ) And the fork (70) can be stood and stowed so that the crop picking and harvesting machine according to claim 1 is obtained.

  According to the first aspect of the present invention, the crop picked up from the field by the pick-up and transport device (22) to the crop storage unit (38) is raised along with the lift of the crop storage unit (38). Since it can be loaded directly into the carrying platform of the truck waiting at the shore by being scraped or dropped from the crop container (38), it is not necessary to pick up and load the container once left in the field as before. And efficient harvesting work.

  In the invention according to claim 2, in addition to the effect of claim 1, when the crop accommodating part (38) is raised, the inner bottom part (39b) of the crop accommodating part (38) is inclined backward, and the crop inside is The work of falling to the carrying platform and transferring it becomes easier.

  In the invention according to claim 3, in addition to the effect of claim 2, when the rear door (39c) can be opened by raising the crop container (38), the internal crop pushes the rear door (39c) open. However, it is gradually discharged to the transport platform and a large amount does not fall suddenly, so there is little risk of damage to the crop.

  In the invention according to claim 4, in addition to the effect of claim 1, since the crop container (38) enters below the end of the pick-up and transfer device (22), the storage capacity of the crop container (38) is increased. However, since the end of the pick-up and transport device (22) and the front inner bottom (39a) of the crop container (38) approach, the drop impact of the crop falling from the pick-up and transport device (22) is mitigated and not damaged. . Moreover, since the inner bottom part (39a) of the crop accommodating part (38) inclines downward toward the rear, the crop easily rolls backward and can be easily taken out.

  In the invention according to claim 5, in addition to the effect of claim 1, the crop falling from the terminal end of the pick-up conveyance device (22) is guided and dropped into the crop accommodating part (38) by the discharge shooter (37). Mitigates impact and does not damage. Further, since the discharge shooter (37) is flexible, the discharge shooter (37) does not hinder the movement of the crop storage section (38) when the crop storage section (38) is moved back and forth.

  In the invention of claim 6, in addition to the effect of claim 1, by loading the crop storage box (39) on the carrier bed, the loading and moving of the crop is facilitated, so the crop storage box (39) When the fork (70) is stowed up and removed, the overall length of the aircraft can be shortened.

Side view of crop picking harvester Top view of crop picking harvester Enlarged plan view of the torque limiter part of the pick-up drive shaft Control block diagram Flow chart showing deceleration control of continuously variable transmission Side view of crop storage Side view of the crop container of another embodiment Furthermore, the side view of the crop accommodating part of another Example

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. In the description of the embodiment, 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 backward direction is referred to as rear. However, the configuration of the present invention is not limited.

  As shown in FIGS. 1 and 2, an engine 2 is provided at the left rear portion of the body frame 1, and a transmission case 3 for transmitting a driving force supplied from the engine 2 is provided at a lower front side of the engine 2. Further, the traveling transmission shafts 4, 4 protruding from the transmission case 3 on both the left and right sides are pivotally supported on the crawler frames 5, 5, and the traveling sprockets 6, 6 are fixed to the traveling transmission shafts 4, 4. A plurality of rollers 7 and 7 are pivotally supported on the frames 5 and 5. The crawler belts 8 and 8 are wound endlessly around the left and right traveling sprockets 6 and 6 and a plurality of rollers 7 and 7 to constitute a traveling device 9 including left and right traveling crawlers 9L and 9R.

  The left and right traveling crawlers 9L and 9R are arranged outside the body frame 1.

  A fuel tank 10 is provided in the upper part of the engine 2, and a hydraulic continuously variable transmission (HST) 11 that shifts and outputs the driving force of the engine 2 is output and stopped on the front side. The upper portion of the tank 10, the continuously variable transmission 11 and the engine 2 and the left and right sides thereof are covered with a steering cover 12, and a U-shaped handle bar 13 is mounted on the steering cover 12 in a plan view with the operator's hand attached to the rear of the aircraft. Protruding to the side.

  Further, on the right side of the control cover 12, the left and right side clutch levers 14 and 14 for turning on and off the driving force applied to the left and right running crawlers 9L and 9R by turning on and off the traveling transmission clutch built in the transmission case 3 are provided. Is formed in a clutch lever groove that can be turned on and off. Note that the side clutch levers 14 and 14 may be configured to be turned by tilting left and right as a single lever.

  On the other hand, on the left and right sides of the control cover 12, 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 15 for operating the height is set up in a shift lever groove 15a (FIG. 2) having a U-shape in plan view. 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 (FIG. 4) for detecting is provided, a trunnion rotation motor 11b for rotating via a rotation arm of the trunnion shaft, and a trunnion potentiometer 11c for detecting the rotation angle of the rotation arm are provided. The trunnion shaft is rotated in accordance with the detection of the speed change operation sensor 15b, and the output of the continuously variable transmission 11 is changed.

  Then, a relay transmission case (not shown) that transmits a driving force upward from the transmission case 3 is provided, and a pickup drive shaft 16 is provided in the relay transmission case in the left-right direction of the machine body. 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. Furthermore, 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, so that the pick-up transport device 22 is Composed.

  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. However, 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, the transport bar 21 may have a shape in which a protruding portion is positioned above. By arranging several transport bars 21 with protrusions, it can be used as a cross for catching crops that fall down toward the transport start end side during transport, preventing crops from falling to the field, and picking up harvest It is no longer necessary to collect the crops that have not been done, improving 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 is formed in the transport action area of the pick-up transport device 22, and the crop is less likely to fall down due to the recess. Good.

  As shown in FIG. 2, 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 body relative to the left and right traveling crawlers 9L and 9R. A connecting support frame 45 for connecting the left and right transport frames 18, 18 is provided below the transport covers 23, 23, and a pickup for picking up the transporting device 22 up and down between the connection support frame 45 and the body frame 1 is provided. The raising / lowering cylinder 46 (FIG. 1) is provided so that it can expand and contract, and the conveyance angle of the pick-up conveyance device 22 can be changed in accordance with the soil quality of the field.

  Further, as shown in FIG. 1 and FIG. 2, on the front side of the pick-up and transport device 22, the crop enters the lower side of the crop to float from the field scene, and to the upper surface of the pick-up and transport device 22, that is, the transport action surface. A scooping plate 24 for guiding is provided. The upper surface of the scooping plate 24 has a rearward upward inclined posture from the farm scene to the position just before the transport start end of the pick-up transport device 22, but it is not linear but may have a gentle arc shape that is recessed downward. Good.

  Further, a portion other than the front, rear, left and right ends of the scooping plate 24 may be cut into a frame shape, and the lifting and conveying device 25 rotating to the picking and conveying device 22 side in the frame may be disposed in a rear-upward inclined 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, guide frames 27 and 27 are disposed 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 frames 27, 27 is provided with transmission pulleys 28, 28 at the front end portion and the rear end portion of the left and right guide frames 27, 27, respectively. 28, 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 scooping plate 24 and the left and right guide conveying devices 33 and 33 are preferably stood and stored.

  The left and right guide transport devices 33, 33 are moved closer to the transport action area of the pick-up transport device 22 as they are turned to the inner side of the machine body. By approaching the 9R side, that is, the end portion side of the cocoon, the crop located near the end portion of the cocoon is picked up and guided to the conveying device 22 to prevent the crop from remaining on the field.

  As described above, the crop located near the left and right ends of the conveyance width of the pick-up conveyance device 22 can be brought close to the pick-up conveyance device 22 by the conveyance lugs 29 that move by the rotation of the guide belts 30, 30. As a result, it is possible to reliably lift and guide the crops located at the left and right ends of the pick-up and transfer device 22, eliminating the need to collect the crops left on the field, improving work efficiency, and improving the labor of workers. Is reduced.

  In addition, since the crops being harvested can be prevented from falling into the troughs formed on the left and right sides of the straw, it is possible to prevent the crops from being stepped out of the crops by the left and right traveling crawlers 9L and 9R. Reduced yield is prevented.

  The guide switching dials 32a and 32a for operating the rotational speeds of the guide drive motors 32 and 32 and the rotation switching dials 34a and 34a for operating the operation amounts of the rotating actuators 34 and 34 are provided near the handle bar 13. Provided on the steering cover 12.

  Thereby, the operator who operates the machine body behind the handlebar 13 can change the rotation amount of the left and right guide transfer devices 33 and 33 according to the position of the crop on the basket. The work of collecting the crops left on the field without being placed on the device 22 is not required, and the work efficiency is improved and the labor of the worker is reduced.

  Further, when the crops are gathered near the center of the fence, the tip width 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 respect to or the back of the crop from the pick-up conveying device 22 due to vibration of the machine body.

  Further, as shown in FIG. 2, on the left side 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 made of a soft material such as an up-down rubber or a synthetic resin is provided at the edge to prevent the crop from approaching the left side of the pick-up conveyance device 22. Among the crops transported by the pick-up and transport device 22, those located on the left side of the machine body are guided to the right side toward the lower side in the transport direction (the rear side of the machine body) by the protective cover 36. Therefore, the control cover 12 and the engine 2 can be picked up and arranged on the left rear side of the transport device 22.

  Then, as shown in FIGS. 6 and 7, crops discharged from the pick-up and transport device 22 are disposed at the end of transport of the pick-up and transport device 22 and at the rear side of the body frame 1 at a position on the right side of the control cover 12. A crop storage unit 38 is provided, and a discharge shooter 37 that guides the crop from the end of the pick-up conveyance device 22 to the crop storage unit 38 is provided in the crop storage box 39. The discharge shooter 37 is a deformable rubber plate or the like, and is deformed even when it hits the end of the pick-up conveyance device 22 by raising and lowering the crop storage box 39, and its front end returns to the lower side of the pick-up conveyance device 22 at the descent collection position. Guide the fall of the crop.

  The crop storage unit 38 shown in FIG. 6 is a crop storage box 39, and left and right box struts 41 erected on the front and rear intermediate side parts of the crop storage unit 38 and left and right machine body struts erected on the rear part of the body frame 1. 40 is connected by the upper and lower upper and lower links 42a and 42b, and the lower left link 42b that connects the left airframe column 40 and the left box column 41 is connected to the left airframe column 40 by the storage unit elevating cylinder 43 to constitute the elevating mechanism 44. Then, the storage unit elevating cylinder 43 expands and contracts to raise and lower the crop storage box 39. In this embodiment, since the upper and lower links 42a and 42b are parallel links, the crop storage box 39 moves up and down while maintaining the level.

  In addition, since the left and right machine body columns 40 and the box columns 41 are erected outside the conveyance width of the pick-up conveyance device 22, there is no hindrance to the crops falling to the crop storage box 39.

  The body column 40 may be erected on a cover case that covers the transmission case 3 and the traveling transmission shaft 4, and the upper and lower links 42 a and 42 b may be provided as far as possible from the handlebar 13.

  In addition, when a rear door (not shown) that is manually opened is provided on the rear side of the crop storage box 39 and is opened at the time of discharging, it is easier to perform the maneuvering operation when the rear door is located behind the handlebar 13. .

  The crop storage box 39 according to another embodiment shown in FIG. 7 is configured to lower the crop storage box 39 by narrowing the pivot support interval of the box column 41 connecting the upper and lower links 42 a and 42 b and increasing the pivot support interval of the machine column 40. In the position, the inner bottom portion 39b is horizontal, and in the raised position, the inner bottom portion 39b is inclined rearward and downward, and the rear door 39c pivotally supported on the crop storage box 39 is unlocked and opened as it is raised. The front inner bottom portion 39a of the front half of the inner bottom portion 39b is inclined upward to reduce the distance from the lower end of the discharge shooter 37 to reduce the drop impact, and at the time of rising and discharging, the rearward inclination is abrupt and the crop is I try not to leave behind. Therefore, when the crop storage box 39 is raised, the crop falls on the transport bed while rolling the inner bottom portion 39b backward and opening the rear door 39c.

  In addition, when the discharge shooter 37 is eliminated and the crop storage box 39 is extended to a position below the end of the pick-up and transport device 22 to increase the capacity, the front side of the front inner bottom portion 39a approaches the end of the pick-up and transport device 22 and falls. There is little drop impact of crops to prevent damage.

  A cover may be provided in the crop storage box 39 to prevent the crop from jumping out.

  The crop storage box 39 can be adjusted so that the normal crop collection position can be adjusted up and down further, and the crop can be lowered directly to the field and collected later.

  Further, a play may be provided in the attachment of the upper and lower links 42a and 42b and the crop storage box 39 so that the crop storage box 39 is shaken by vibration during movement so that the crops are leveled.

  In another embodiment shown in FIG. 8, a fork 70 that can be raised and lowered is provided on the box column 41, and the fork 70 is inserted into a mounting guide 71 provided at the bottom of the crop storage box 39. In this case, if the crop storage box 39 is removed and the fork 70 is erected, the entire length of the machine body can be shortened and the crop storage box 39 can be easily replaced.

  Moreover, if the box support | pillar 41 is provided with the light 72 which illuminates the back, the night crop removal work will be attained. Although the irradiation direction of the light 72 is rearward and upward, it is preferable that the irradiation angle can be changed.

  When a crop is collected in the crop storage box 39, the crop picking and harvesting machine raises the crop storage box 39 and loads it on a carrier truck that accompanies the truck or a truck bed waiting at the shore.

  As shown in FIGS. 1 and 2, a front-rear direction drive transmission case 47 is provided on the left side of the left side of the machine body and between the left side transport cover 23 and the traveling crawler 9L. A take-up and lowering cylinder 48 is provided for rotating the insertion transmission case 47 up and down. Further, in the drive transmission case 47, a drive drive sprocket 49 to be mounted on the pickup drive shaft 16 like the transport drive sprocket 17, a drive driven sprocket 50 rotatably arranged on the front side of the machine body, A take-up transmission chain 51 is provided around the take-up drive sprocket 49 and the take-up driven sprocket 50 so as to be wound endlessly.

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

  Further, a cylindrical picking drum 52 is mounted on the right side of the driven rotating shaft 50a of the driven driven sprocket 50, that is, the side closer to the center of the machine body, and a plurality of intervals are provided around the outer periphery of the driven drum 52 with a predetermined interval. In addition to mounting the take-up arms 53..., Each of the take-up arms 53. .

  The scraping device 55 rotates counterclockwise when viewed from the side, and picks up a 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. Thus, the crop is surely conveyed.

  With the above configuration, the crop falls down toward the transport start end side of the pick-up transport device 22 and comes into contact with the crop before pick-up, or the crop falls into the trough and is crushed by the left and right traveling crawlers 9L and 9R. Can be prevented.

  Further, since the scraping device 55 picks up the crop and moves the crop to the lower side in the transport direction of the transport device 22, it is possible to prevent the crop from staying at the transport start end of the pick-up transport device 22. The work for preventing the crops from falling from the pick-up conveyance device 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 driving force from the common pick-up drive shaft 16 to synchronize the pick-up transport speed and the pick-up rotation speed, and the crop returns to the field, Prevents falling into the trough. However, since the force required for driving increases accordingly, if the transport start end portion of the pick-up transport device 22 pierces the earth or sand, or if the crop stagnates between the upper and lower sides of the pick-up device 55 and the pick-up transport device 22, A load is picked up and applied to the rotary shaft 16 and may be damaged.

  In order to prevent this problem, as shown in FIG. 3, a torque limiter 56 that stops the rotation of the pick-up rotating shaft 16 by causing the transport drive sprocket 17 to idle when an overload, that is, when a torque exceeding a predetermined value is applied. The pick-up and transfer device 22 is provided inside the transfer cover 23 on the left and right sides and on the left side. 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 come into contact with the left and right side ends 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 into which a nut 62 for picking up the limiter hub 61 and attaching it to the rotary shaft 16 is formed at the left and right end portions of the limiter hub 61, and the nut 62 is housed in the recess 61b. To do.

  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 scraping device 55, the left and right brake linings 57, 57 and the auxiliary lining 58 come into contact with each other to cause the transport drive sprocket 17 to idle, Since the rotation of the lifting rotary 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. The shaft 16 is prevented from being damaged due to overload.

  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 adjusting handle 60 is provided on the left and right outer peripheral portions of the limiter hub 61, the torque adjusting 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 lifting start height, transmission of the driving force can be stopped before the picking rotary shaft 16 is broken, and the picking and harvesting work is prevented from being interrupted. Is done.

  Furthermore, by stopping the rotation of not only the pick-up transport device 22 but also the pick-up device 55, the operator can visually confirm the operation of the torque clutch 56, so that the pick-up transport device 22 and the pick-up device It is possible to prevent the aircraft from moving forward without noticing the stop of 55, 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, by reducing the output of the continuously variable transmission 11 in accordance with the slip rate when the torque limiter 56 is operated, the traveling speed of the pick-up harvesting work can be reduced, and the pick-up transport device 22 and the scraper Since it becomes difficult to apply load to the insertion 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.

DESCRIPTION OF SYMBOLS 1 Airframe frame 9 Traveling apparatus 22 Pick-up conveyance apparatus 37 Discharge shooter 38 Crop accommodating part 39 Crop accommodating box 39a Front inner bottom part 39b Inner bottom part 39c Rear door 40 Airframe pillar 41 Box pillar 42a Upper link 42b Lower link 44 Lifting mechanism 55 Equipment 70 fork

Claims (6)

  A scraper (55) and a pick-up and transport device (22) are provided on the machine body frame (1) that can be traveled by the travel device (9), and a crop in the field is placed on the pick-up and transport device (22). In the crop picking and harvesting machine transported to the crop container (38) at the rear of the machine body, the crop picking and harvesting machine is characterized in that the crop container (38) can be raised by the lifting mechanism (44).   When the crop accommodating part (38) is raised, the box support (41) standing on the left and right side parts of the crop accommodating box (39) and the body frame (1) so that the inner bottom part (39b) is inclined backward. The crop picking and harvesting according to claim 1, characterized in that the elevating mechanism (44) is formed by connecting the left and right body columns (40) to be erected by an upper link (42a) and a lower link (42b), respectively. Machine.   The rear door (39c) is hung from the rear part of the crop accommodating part (38), and the rear door (39c) is opened when the crop accommodating part (38) is raised. Crop picking and harvesting machine as described in.   The crop container (38) is approached to the lower end of the pick-up and transfer device (22), and the front inner bottom (39a) of the crop container (38) where the crop falls falls down toward the rear. The crop picking and harvesting machine according to claim 1, wherein the crop picking and harvesting machine is inclined.   The crop according to claim 1, wherein a flexible discharge shooter (37) is provided at a lower end of the pick-up and transfer device (22) so as to incline toward the inside of the crop container (38). Pick-up harvester.   The crop storage section (38) is configured by a fork (70) on the airframe side and a crop storage box (39) that can be attached to and detached from the fork (70), and the crop storage box (39) is removed to form the fork ( 70. The crop picking and harvesting machine according to claim 1, wherein 70) can be stood and stored.

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