JP2015062371A - Root crop harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a root crop harvester solving problems in a conventional working machine configured such that the stems and leaves of crops are held by a pullout conveyor and the crops are pulled up from a field, and then the upper parts of the stems and leaves are cut and the crops are returned to the field, and alternatively the upper parts of the cut stems and leaves are separately conveyed and discharged, in which the stems and leaves fall to the upper parts of the pulled-up crops, and this stems and leaves interfere to thereby reduce work efficiency.SOLUTION: A root crop harvester is characterized in that a conveyance termination (T) of an excavating conveying device (40) is disposed in the left and right one side of the anterior posterior shafts of a machine body passing a conveyance starting end (S) of the excavating conveying device (40), and also a conveyance starting end (X) of a stem and leaf conveying device (90) is disposed in the upper part of a crop conveyance locus of the excavating conveying device (40), and the conveyance termination (Y) of the stem and leaf conveying device (90) is formed in a traveling device side provided in the left and right one side.

Description

  The present invention relates to a root vegetable harvesting machine for assisting the harvesting operation of root vegetables such as radish, which requires a large pulling force during harvesting.

  The working machine described in the prior patent documents 1 and 2 pulls up the crop from the field by holding the stalk and leaf part of the crop with the pulling and conveying device, cuts the top of the stalk and leaf part with the leaf cutting device, and returns the crop to the field. On the other hand, the upper part of the cut foliage is separately conveyed and discharged. Harvesting workers can pick up and collect the crops with a light force when grabbing the stems and leaves left on the crops, thus saving labor.

Japanese Patent No. 5045530 Japanese Patent No. 5125366

  However, since the foliage part of patent document 1 falls also above the pulled-out crop, the foliage part cut | disconnected when an operator grasps a foliage part and pulls out a crop gets in the way, and the work efficiency falls. There is.

  The working machine described in the prior patent document 2 includes a foliage conveyance device that conveys and discharges the upper part of the cut foliage part to the left and right sides of the machine body, and conveys the crop while conveying the crop. It is configured to take over from the end portion.

  However, since the conveyance terminal portion of the pulling and conveying apparatus is located at the center in the left-right direction of the machine body, the conveying distance of the foliage conveying apparatus becomes long, and the components are increased in size and the weight and cost are increased accordingly. .

  In addition, since the conveyance end portion of the extraction conveyance device and the conveyance start end portion of the foliage conveyance device are separated from each other, when taking over the foliage portion from the extraction conveyance device to the foliage conveyance device, the foliage portion falls without being inherited, The foliage accumulates on the aircraft and must be removed by the operator, resulting in problems that work efficiency decreases, the foliage gets entangled with the drive unit of the pulling and conveying device, the traveling wheels of the traveling vehicle body, etc. There is a problem.

Therefore, it is a problem to be solved by the present invention to provide a root crop harvester that solves the above problems.

The present invention has taken the following technical means to solve the above problems.
That is, the invention described in claim 1 is a traveling device that travels in a field, and an excavation transport device (40) that digs up a crop from the field between the left and right drive wheels constituting the traveling device and transports a foliage part. , A cutting device (70) for cutting the foliage portion of the crop being conveyed by the excavating and conveying device (40), and a foliage conveying device for discharging and conveying the foliage cut by the cutting device (70) to the outside of the machine ( 90) in the root vegetable harvesting machine, the machine front and rear axis passing through the conveyance terminal end (T) of the digging and conveying apparatus (40) through the conveyance starting end (S) of the digging and conveying apparatus (40) Are arranged on one side of the left and right, and the conveyance start end (X) of the foliage conveyance device (90) is arranged above the crop conveyance locus of the excavation conveyance device (40), and the foliage conveyance device (90 ) Is the traveling device side provided on the left and right sides. A root crop harvester, wherein the door.

  In the invention according to claim 2, the transmission case (4, 4) is provided on the transmission case (3) provided at the rear of the digging and conveying device (40), and the digging and conveying device ( 40) is constituted by a pair of excavation-circulating endless belt mechanisms (45, 45) which are dug in a plurality of pulleys and wound around an endless body (44), and the foliage conveying device (90) And a pair of foliage transport endless belt mechanisms (94, 94) wound around a pulley of a foliage endless belt (93). Left and right digging drive pulleys (41, 41) that drive the raising and conveying device (40) and left and right conveyance drive pulleys (91, 91) that drive the foliage conveying device (90), respectively The left and right excavation drive pulley (41), The transport drive pulley (91) of the left and right sides, and the excavation drive pulley (41) on the left and right other sides and the transport drive pulley (91) on the left and right other sides are arranged coaxially. The root vegetable harvester according to claim 1, wherein

  The invention according to claim 3 constitutes the foliage transport device (90), receives the driving force from the transport drive pulley (91, 91), and is transported on the traveling device side provided on the left and right sides. Of the pulleys (92, 92), the one located on the front side of the fuselage is arranged on the inner side of the fuselage than the one located on the rear side of the fuselage, and the transport terminal (Y) of the foliage transport device (90) The root crop harvesting machine according to claim 2, wherein the root vegetable harvesting machine is arranged in front of an axis of a drive wheel of the apparatus.

  According to a fourth aspect of the present invention, the excavation transfer device (40) and the foliage transfer device (90) are arranged between the left and right drive wheels of the travel device, and between the left and right drive wheels of the travel device. 4. The apparatus according to claim 1, further comprising a distance adjusting device (20) that is disposed at a position that is biased to either side and further adjusts a left-right distance between drive wheels that constitute the traveling device. The root vegetable harvester according to item 1.

  Further, in the invention according to claim 5, the cutting device (70) is disposed in front of the machine body relative to the conveying terminal portion (T) of the excavating and conveying device (40), and the cutting device (70) includes In addition to providing a vertical movement mechanism for moving the cutting blade (71) up and down, the vertical operation lever (74) of the cutting blade (71) is disposed on the side of the control member (13) provided above the transmission case (3). The vertical movement mechanism of the cutting blade (71) and the vertical operation lever (74) are connected to each other by a vertical coupling mechanism (75). It is a root vegetable harvester described in 1.

  Further, the invention described in claim 6 is provided with a scraping device (50, 51) that raises the foliage of the crop and guides it to the digging device (40), and the cutting device (70) includes A cutting blade holding case (72) provided with a driving mechanism for the cutting blade (71) is provided, and a rotational driving force of the cutting blade (71) is provided on one side of the right and left sides of the cutting blade holding case (72). A cutting transmission case (73) provided with a transmission mechanism is provided, and the upper and lower linkage mechanisms (75) are connected to the left and right other sides of the cutting blade holding case (72), and the left and right transmission cases (4, 4) In any one of Claims 2-5, provided with the branch transmission mechanism which branches the drive force with respect to the said scraping apparatus (50, 51) and the said cutting device (70). It is a root vegetable harvester described in 1.

  The invention according to claim 7 is configured to rotate the cutting blade holding case (72) with respect to the cutting transmission case (73) about the horizontal axis of the cutting blade holding case (72). And a vertical movement mechanism of the cutting blade (71), a connection plate (76) fixed to the cutting blade holding case (72), and a switching arm (77) constituting the vertical connection mechanism (75). When the connection is released, the cutting blade holding case (72) becomes rotatable, and the cutting blade holding case (78) is controlled by a locking member (78) that restricts the rotation of the connection plate (76). 72) The root crop harvesting machine according to claim 6, wherein the rotation of 72) is restricted.

  In the invention according to claim 8, a support arm (60) is provided from the machine body frame (8) to the digging and conveying device (40), and the support arm (60) is stepped in the longitudinal direction of the machine body. The root vegetable harvesting device according to any one of claims 1 to 7, wherein a lighting device (61) is disposed at an upper end portion of the support arm (60) while being rotatably mounted on the root arm. Machine.

  According to invention of Claim 1, the conveyance termination | terminus part (T) of an excavation conveyance apparatus (40) is right-and-left of the body front-rear axis | shaft which passes the conveyance start end part (S) of an excavation conveyance apparatus (40). By arrange | positioning in the side, the length of the foliage conveyance apparatus (90) which conveys the foliage part cut | disconnected by the cutting device (70) can be shortened, and reduction of a number of parts can be aimed at.

  In addition, by digging up the conveyance start end (X) of the foliage conveyance device (90) and arranging it above the crop conveyance locus of the conveyance device (40), the cut foliage portion is surely separated from the foliage conveyance device (90). Therefore, it is possible to prevent the separated foliage from falling on the crop left in the field, eliminating the need to pick up the foliage before collecting the crop left in the field, and improving work efficiency. .

  And by setting the conveyance termination part (Y) of the foliage conveying apparatus (90) to the traveling apparatus side provided on the left and right sides, the foliage part falls around the place where the traveling apparatus on the left and right sides pass. Also in this respect, the foliage is prevented from falling on the crop left in the field, and it is not necessary to pick up the foliage before collecting the crop left in the field, thereby improving the work efficiency.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the driving force from the left and right transmission cases (4, 4) to the excavation transfer device (40) and the foliage transfer device (90). The left and right digging drive pulleys (41, 41) of the digging and conveying device (40) and the left and right conveying drive pulleys (91, 91) of the foliage conveying device (90). By arranging it coaxially, the driving force from the transmission case (4, 4) can be directly transmitted to the excavating and conveying device (40) and the foliage conveying device (90), and the configuration of the driving system is simplified and maintenance is performed. As a result, the number of parts is reduced.

  According to invention of Claim 3, in addition to the effect of invention of Claim 2, the delivery termination | terminus part (Y) of the foliage part of a foliage conveying apparatus (90) is from the axial center of the drive wheel of a traveling apparatus. Is located on the front side so that the discharged foliage can be stepped on by the traveling device, so that the foliage is prevented from moving onto the adjacent unharvested crop and is excavated during the excavation of the crop. And entanglement with the transfer device (40) is prevented.

  Moreover, the fall of the foliage part to the crop left in the field is prevented, and it is not necessary to pick up the foliage part before collecting the crop left in the field, thereby improving the work efficiency.

  According to invention of Claim 4, in addition to the effect of invention of any one of Claims 1-3, excavation conveyance apparatus (40) and foliage conveyance apparatus (90) are made into a traveling apparatus. Between the left and right drive wheels, which is biased to either side, widens the space between the drive wheels so that the drive wheels can run in the groove of the double-row planted heel and is raised during the lifting work The stalks and leaves of the crops of the next row that are subject to lashing are not pressed by the running wheel, and the work efficiency is improved.

  In addition, by providing the left and right spacing adjustment mechanism (20) for the drive wheels, the work efficiency is improved for a triple-planted ridge as in the case of double-planting.

  According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 2 to 4, the vertical position of the cutting blade (71) of the cutting device (70) is set to the steering member. Since it can be changed by the up / down operation lever (74) provided on the side of (13), when it becomes necessary to change the cutting position of the foliage part according to the growing situation of the crop and the field conditions, Since it is not necessary to adjust the cutting height by moving to the vicinity of the cutting device (70), the work efficiency is improved.

  Further, since the vertical position of the cutting blade (71) can be easily changed by operating the vertical operation lever (74), it is not necessary to prepare a tool or the like at the time of adjustment work, and the work efficiency is further improved.

  According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 2 to 5, from the transmission case (4, 4), the digging and conveying device (40) In addition to the foliage transfer device (90), the take-up device (50, 51) and the cutting device (70) are provided with a branch transmission mechanism for diverging the driving force. 51), it is not necessary to configure each of the transmission paths to the excavating and conveying apparatus (40), the foliage conveying apparatus (90), and the cutting apparatus (70), the transmission path becomes a simple configuration, and the number of parts is reduced. As a result, the maintainability is improved and the weight is reduced.

  According to the invention described in claim 7, in addition to the effect of the invention described in claim 6, when the connection of the upper and lower linkage mechanism (75) is removed, the cutting blade holding case (72) is rotated, and the locking member ( 78) restricts the rotation of the cutting blade holding case (72), so that when performing maintenance such as attachment / detachment work, the cutting blade (71) is moved to the front side of the machine body without any member interfering with the cutting blade (71). Since the operator can perform the attaching / detaching operation of the cutting blade (71) without being obstructed by other components, the maintainability is improved.

  According to the invention described in claim 8, in addition to the effect of the invention described in any one of claims 1 to 7, the lighting device (61) is dug up and disposed above the transport device (40). As a result, it is possible to illuminate the surroundings of the aircraft during work in the early morning, so it is possible to mute the direction of the aircraft and the occurrence of crops, and to respond quickly even if problems occur. The harvesting operation is prevented from being interrupted.

  In addition, since the support arm (60) can be rotated stepwise in the longitudinal direction of the machine body, the digging and conveying device (40) side and the machine body rear side where the operator stands can be selected and illuminated. The operator is less likely to make operational mistakes, and the work efficiency is further improved.

It is a right view of the root vegetable harvester concerning 1st embodiment of this invention. It is a top view of the root vegetable harvester of FIG. It is a left view of the root vegetable harvester of FIG. It is a top view which shows the positional relationship of the excavation conveyance apparatus and foliage conveyance apparatus of the root vegetable harvesting machine of FIG. It is a top view of the digging and conveying apparatus etc. of the root vegetable harvester of FIG. It is a block diagram of the cutting device of the root vegetables harvester of FIG. It is work explanatory drawing of the cutting device of FIG. It is a left view of the periphery of the lighting device of the root vegetable harvester of FIG. It is a perspective view around the left front wheel of the root vegetable harvester of FIG. It is a block diagram of the front wheel of the root vegetable harvester of FIG. It is explanatory drawing of the operation | work in the double row planting fence of the root vegetable harvester of FIG. It is explanatory drawing (1st half) of the operation | work in the triple row planting of the root vegetable harvesting machine of FIG. It is explanatory drawing (latter half) of the operation | work in the triple row planting of the root vegetable harvesting machine of FIG. It is a side view of the extraction conveyance part of the root vegetables harvester concerning 2nd embodiment. It is a top view of the extraction conveyance part of FIG. It is a block diagram of the front wheel of the root vegetable harvester of FIG.

  Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings. In this manuscript, they are referred to as left and right and front and rear, respectively, in the forward direction of the root crop harvesting machine.

  1 to 3 show a root vegetable harvester according to a first embodiment of the present invention. 1 is a right side view of a root crop harvesting machine, FIG. 2 is a plan view in the direction of arrow P in FIGS. 1 and 3, and FIG. 3 is a left side view. The root vegetable harvester according to this embodiment is a working machine that performs a drawing operation of a radish, which is a root vegetable, and a cutting operation of a foliage.

  This root vegetable harvesting machine sandwiches a power unit A that supplies power to the entire machine, a control unit B that controls the direction and turning of the machine, a running unit C that runs the machine, and a foliage K of the radish G in the field. And it comprises the drawing conveyance part D which pulls up the radish G, and the leaf removal part E which discharges the cut foliage K to the field. The root vegetable harvesting machine holds the crop foliage by pulling out the conveyance section D, pulls up the crop from the field, cuts the top of the foliage and returns the crop to the field, while separately removing the top of the cut foliage. Transport and eject. Harvesting workers can pick up and collect the crops with a light force when grabbing the stems and leaves left on the crops, thus saving labor. Details of each part will be specifically described below.

The configuration of the power unit A and the control unit B will be described.
The power part A and the control part B are provided at the rear part of the body frame 8 constituting the body of the root vegetable harvesting machine. The power unit A includes an engine 2 and a transmission case 3 that receives power from the engine 2 and supplies power to the traveling unit C, the drawing conveyance unit D, and the like.

  The left and right control members 13, 13 constituting the control part B are provided at the rear end part of the body frame 8. In addition, a traveling clutch lever 15 that switches between running and stopping of the machine body and a working clutch lever 16 that turns on and off the drive of the pulling and conveying section D are provided in the transmission case 3. Also, left and right side clutch levers 18, 18 for turning on and off the transmission of power to the left and right chain cases 17, 17 of the traveling portion C, which will be described later, are attached to the lower portions of the left and right steering handles 13, 13. Further, an up / down operation lever 74 for moving up and down a cutting blade 71 of a cutting device 70 to be described later is provided on the left side of the left control member 13.

Next, the configuration of the traveling unit C will be described.
The traveling unit C includes a traveling device and a transmission device for the traveling device. In the present embodiment, the traveling device includes left and right front wheels 27 and 27 and left and right rear wheels 26 and 26, and the left and right rear wheels 26 and 26 are driven by power from the transmission case 3. The transmission device for the traveling device includes left and right chain cases 17 having left and right rear wheels 26 and a distance adjusting device 20 that changes the position of the left chain case 17 to the left and right. The power from the projecting output shaft 3 a is transmitted to the rear wheel 26 by the chain 25 in the chain case 17. The chain case 17 can be turned up and down with the output shaft 3a as a turning fulcrum.

Next, the drawing conveyance unit D and the leaf discharging unit E will be described.
The pulling and conveying unit D is a belt that receives and clamps the longitudinal and lateral scraping devices 50 and 51 that cause the stems and leaves to be scraped and the stems and leaves K guided from these scraping devices 50 and 51 in front of the machine body. Digging and conveying apparatus 40 comprising a pair of circulatory belt mechanisms wound around, a cutting apparatus 70 for cutting the upper part of the stems and leaves K of the crop being conveyed by the digging and conveying apparatus 40, and the digging and conveying apparatus 40 It is comprised with the illuminating device 61 arrange | positioned above.

  The vertical take-up device 50 and the horizontal take-in device 51 are configured by winding a belt 52 with a lug around a plurality of pulleys. These scraping devices 50 and 51 are driven by power branched by a branch transmission mechanism by a bevel gear set in the right transmission case 4. The digging and conveying device 40 digs up the radish G by sandwiching the stalks and leaves K of the radish G and conveying the stalks and leaves K, and the right-side biased position between the rear wheels 26 and 26 that are the left and right drive wheels. To place.

  The defoliation part E is constituted by a foliage conveying device 90 comprising a pair of circling belt mechanisms wound around a belt, and is dug and disposed above the rear part of the conveying device 40. The gap between the foliage transport device 90 and the excavation transport device 40 is preferably several mm.

  The excavation conveyance apparatus 40 which comprises the drawing conveyance part D, and the foliage conveyance apparatus 90 which comprises the leaf discharging part E are demonstrated in detail using FIG. FIG. 4 is a plan view showing the positional relationship between the excavating and conveying device 40 and the foliage conveying device 90 of the root vegetable harvester according to the first embodiment of the present invention, and FIG. FIG. 4B is a plan view of the foliage conveying device 90. FIG.

  The digging / conveying device 40 is configured by arranging a digging / circulating endless belt mechanism 45 in which an endless belt, which is a belt, is wound around a plurality of pulleys on the left and right sides. The digging endless belt mechanism 45 located on the right side of the machine body includes a large-diameter digging drive pulley 41, a digging driven pulley 42 having substantially the same diameter as this, a plurality of small-diameter pulleys 46,. The digging tension pulleys 47 and 47 are formed by winding a digging endless belt 44 as a belt. Diagonal uneven rubber is provided on the outward surface of the endless belt 44 that has been dug.

  The excavation circulating endless belt mechanism 45 located on the left side of the machine body has an excavation transmission pulley 43 having the same diameter as the excavation drive pulley 41 with respect to the pulley configuration of the right excavation circulating endless belt mechanism 45. Provided between the two digging drive pulleys 41, 41. The digging transmission pulley 43 is configured so that the conveyance terminal portion T of the digging and conveying device 40 is on the right side that is the left and right side of the machine longitudinal axis passing through the conveying start end S of the digging and conveying device 40. It arrange | positions on the right side of the body front-back axis | shaft which passes the conveyance start end part S. FIG. Here, the conveyance start end S of the digging and conveying device 40 refers to a position where the endless belts 44 and 44 begin to face each other in order to sandwich the stems and leaves K, and the conveyance end portion of the digging and conveying device 40 T is a position where the endless belts 44 and 44 start to be separated from each other.

The foliage transporting device 90 arranges two foliage transporting endless belt mechanisms 94 each having an endless body as a belt wound around a plurality of pulleys side by side so that a part of the endless belts face each other. The leaf and leaf transport endless belt mechanism 94 located on the left side (front side of the machine body) of FIG. 5B winds the leaf and leaf transport endless belt 93 around the transport drive pulley 91 and a transport driven pulley 92 having substantially the same diameter. It consists of. The foliage transporting endless belt mechanism 94 located on the right side (the rear side of the machine body) adds a foliage transport tension pulley 95 in addition to the one located on the left side. By adding this foliage conveyance tension pulley 95, the position of the conveyance start end X of the foliage conveyance device can be changed to the left and right. Here, the conveyance start end X of the foliage conveyance device 90 refers to the position where the foliage conveyance endless bands 93 and 93 start to face each other, and the conveyance end portion Y of the foliage conveyance device 90 begins to separate the foliage conveyance endless bands 93 and 93 from each other. Say the position. The foliage transport device 90 is provided with cleaning brushes 96, 96 for removing the foliage that is in close contact with the foliage endless belt 93.
The cleaning brushes 96 and 96 may be ones in which a plurality of hairs are densely packed, but may be scrapers that contact the foliage endless belts 93 and 93 in order to surely scrape the mud adhering to the foliage. . If this scraper is made of an elastic soft member such as rubber or synthetic resin, it will be hard to wear the foliage endless belts 93, 93, but if importance is attached to the removal performance of mud, it should be made of synthetic resin or metal with low elasticity. Configure.

  The upper side of FIG. 5B is the right direction of the vehicle body, and the conveyance end portion Y of the foliage conveyance device 90 is located on the traveling device side provided on the right side of the machine body. Further, among the transport driven pulleys 92 and 92 constituting the foliage transport device 90, the one located on the front side of the machine body (the left side in the drawing in FIG. 5B) is located on the inside of the machine body than the one located on the rear side of the machine body Deploy. And as shown in FIG. 3, the conveyance termination | terminus part Y of the foliage conveyance apparatus 90 is arrange | positioned ahead rather than the axial center of the rear wheel 26 which is a drive wheel of a traveling apparatus.

  Right and left excavation drive pulleys 41 and 41 for driving the excavation and conveyance device 40 are arranged coaxially above and below the left and right excavation drive pulleys 41 and 41, respectively. The power is transmitted from left and right transmission cases 4 and 4 provided in front of the case 3, respectively. Further, the excavation tension pulley 43 of the excavation and conveyance device 40 and the foliage conveyance tension pulley 95 of the foliage and conveyance device 90 are arranged coaxially. By arrange | positioning in this way, the conveyance start end part X of the foliage conveying apparatus 90 is dug, and it is located above the crop conveyance locus | trajectory of the conveying apparatus 40. FIG.

  The excavating and conveying device 40 is transferred to the left and right sides of the longitudinal axis of the machine body passing through the conveying start end S of the excavating and conveying device 40, thereby conveying the foliage separated by the cutting device 70. Therefore, the length of the foliage transporting device 90 can be shortened, and the number of parts can be reduced.

  By digging up the conveyance start end X of the foliage conveying device 90 and placing it above the crop conveyance locus of the conveying device 40, the cut foliage portion is surely taken over, so that it was separated into the crop left in the field. The fall of the foliage is prevented, and it is not necessary to pick up the foliage before collecting the crop left in the field, thereby improving the work efficiency.

  By setting the conveyance end portion Y of the foliage conveyance device 90 to the traveling device side provided on the left and right sides, the foliage part falls around a place where the left and right traveling devices pass. Also in this respect, the foliage is prevented from falling on the crop left in the field, and it is not necessary to pick up the foliage before collecting the crop left in the field, thereby improving the work efficiency.

  The driving force can be transmitted from the left and right transmission cases 4 and 4 to the digging and conveying device 40 and the foliage conveying device 90, that is, the left and right digging drive pulleys 41 and 41 of the digging and conveying device 40, and the foliage By arranging coaxially the left and right transport drive pulleys 91, 91 of the transport apparatus 90, the driving force from the transmission cases 4, 4 can be directly transmitted to the excavation transport apparatus 40 and the foliage transport apparatus 90, and the drive system This simplifies the configuration, improves the maintainability, and reduces the number of parts.

  Since the delivery terminal portion Y of the foliage part of the foliage transporting device 90 is positioned in front of the axis of the driving wheel of the traveling device, the discharged foliage part can be stepped on by the traveling device, so that the foliage part is adjacent. It is prevented from moving onto unharvested crops, and is prevented from being entangled with the transporting device 40 during excavation of the crops.

  The foliage is prevented from falling on the crop left on the field, and it is not necessary to pick up the foliage before collecting the crop left on the field, thereby improving the work efficiency.

  The cutting device 70 that constitutes the drawing conveyance unit D will be described with reference to FIGS. The cutting device 70 is disposed below the excavating and conveying device 40 and on the front side of the machine body from the conveying terminal portion T. The cutting device 70 is provided with a cylindrical cutting blade holding case 72 so that the axis of the cylinder is horizontal to the left and right of the machine body. Two disc-shaped cutting blades 71 are placed on the cutting blade holding case 72 on the left and right sides. Attach to. The cutting blade 71 cuts the foliage K of the radish G, and the radish G fits in the original hole in the field. Therefore, the crop conveyance locus excavated by the excavating and conveying device 40 and the endless bands 44 facing each other and sandwiching the foliage K bends to the right from the cutting point of the cutting blade 71 on the rear side of the machine body.

  The cutting blade holding case 72 is rotatably fixed to the body frame 8 by left and right U-shaped fixtures 80 and 80. In the cutting blade holding case 72, driving mechanisms for the cutting blades 71 and 71 are provided. Specifically, a cutting transmission case 73 provided with a transmission mechanism using a chain of rotational driving force of the cutting blades 71, 71 is provided on the right end of the cutting blade holding case 72, and rotational power from the cutting transmission case 73 is supplied. The left and right bevel gear sets are transmitted to the cutting blades 71, 71. The cutting blade holding case 72 is rotatable with respect to the cutting transmission case 73.

  The vertical movement mechanism of the cutting blade 71 is configured to rotate the cutting blade holding case 72 with respect to the cutting transmission case 73 around the horizontal axis of the cutting blade holding case 72. The left side and the up / down operation lever 74 are connected by the up / down linkage mechanism 75. Specifically, the operator moves the up / down operation lever 74 provided further to the left side of the left control member 13 up and down, raises / lowers the switching arm 77 constituting the up / down linkage mechanism 75, and is fixed to the cutting blade holding case 72. By operating the connection plate 76, the cutting blade holding case 72 is rotated, and the cutting position of the cutting blade 71 is moved up and down. The rotational power to the cutting transmission case 73 is transmitted from the transmission case 4 by a branch transmission mechanism (not shown) which is a bevel gear set included in the right transmission case 4.

  When the cutting blade 71 is replaced, the connection between the connection plate 76 and the switching arm 77 is released. The connection plate 76 and the switching arm 77 are connected to each other by inserting a connection protrusion 81 protruding to the side of the connection plate 76 into a connection hole 83 provided in the switching arm 77 and fixing with a pin 82. By removing the, the operator releases the connection. After the connection is released, the cutting blade holding case 72 is rotated about its cylindrical axis, and the concave portion 84 of the connection plate 76 is fitted into the locking member 78 provided on the machine body frame 8, thereby cutting blade holding case. 72 postures are fixed.

  Since the vertical position of the cutting blade 71 of the cutting device 70 can be changed by the vertical operation lever 74 provided on the side of the control member 13, the cutting position of the foliage is changed in accordance with the growing situation of the crop and the field conditions. When it is necessary to do this, the operator does not need to move to the vicinity of the cutting device 70 to adjust the cutting height, so that the work efficiency is improved.

  Since the vertical position of the cutting blade 71 can be easily changed by operating the vertical operation lever 74, it is not necessary to prepare a tool or the like during the adjustment work, and the work efficiency is further improved.

  The transmission case 4, 4 is provided with a branch transmission mechanism that branches the driving force to the excavating and conveying device 40 and the foliage conveying device 90 in addition to the scraping devices 50 and 51 and the cutting device 70. Therefore, it is not necessary to configure the transmission paths to the scraping apparatuses 50 and 51, the digging and conveying apparatus 40, the foliage conveying apparatus 90, and the cutting apparatus 70, and the transmission path has a simple configuration, thereby reducing the number of parts. As a result, the maintainability is improved and the weight is reduced.

When the connection of the upper and lower linkage mechanism 75 is removed, the cutting blade holding case 72 is rotated, and the rotation of the cutting blade holding case 72 is restricted by the locking member 78. Since 71 can be directed to the front side of the machine body without any member that interferes with the cutting blade 71, the operator can perform the attaching / detaching operation of the cutting blade 71 without being obstructed by other constituent members, so that the maintainability is improved.
The cutting blade 71 is dug upward at the position during the harvesting operation, and the conveying device 40 is present. In order to make the cutting position of the foliage as high as possible, the vertical distance between the excavating and conveying device 40 and the cutting blade 71 is adjustable but set narrow, so that the operator inserts a tool and attaches bolts, etc. When attaching / detaching a member, the movable range of the tool is narrow, and the operation is difficult. Moreover, since it is difficult for an operator to visually check the mounting position of the detachable member, the work is more difficult to perform.
In addition, since there is a connection plate 76 and a switching arm 77 behind the cutting blade 71, there are members that obstruct the attachment / detachment work even when the cutting blade 71 is rotated backward. For this reason, when it is not rotated forward, maintenance property will fall significantly.

  The illuminating device 61 which comprises the drawing conveyance part D is demonstrated using FIG.1, FIG3 and FIG.8. FIG. 8 is a left side view of the periphery of the lighting device of the root vegetable harvester of FIG. A cylindrical support arm 60 is dug up from the body frame 8 and directed upward of the conveying device 40, and a battery-chargeable lighting device 61 is provided at the upper end thereof. Under the support arm 60, there are provided a pressing spring 62 fitted on the outer periphery of the supporting arm 60 and a fixing pin 63 that is pressed by the pressing spring 62 and moves along the axis of the supporting arm 60. The support arm 60 is attached to the body frame 8 so that the support arm 60 can be rotated stepwise in the front-rear direction of the body by inserting the fixing pin 63 into the recesses of the left and right concave and convex portions 64, 64 provided so as to sandwich the support arm 60. To do.

  Since the lighting device 61 is dug and placed above the transport device 40, the surroundings of the aircraft can be illuminated during early morning work, so the traveling direction of the aircraft and the occurrence of crops can be kept silent. It is possible to cope with an early occurrence of cropping and prevent the crop harvesting operation from being interrupted.

  Since the support arm 60 can be rotated stepwise in the longitudinal direction of the machine body, it is possible to select and illuminate the digging and conveying apparatus 40 side or the machine body rear side where the operator stands, so that the work efficiency is further improved. .

  FIG. 9 is a perspective view around the left front wheel of the root vegetable harvester of FIG. The root crop harvesting machine according to the present embodiment is provided with a left front wheel cover 28 in front of the left front wheel 27 and a left guide cover 29 for digging and protecting the lower left part of the transport device 40 on the left body frame 8. Provide. By providing these covers, it is possible to prevent the stems and leaves K of the radish G of the strip adjacent to the strip to be pulled out from being dug into the conveying device 40.

  10 is a cross-sectional perspective view showing the configuration of the left front wheel of the root vegetable harvester of FIG. The front wheel 27 of the root vegetable harvester according to the present embodiment is configured so that the height in the vertical direction with respect to the machine body frame 8 can be adjusted. The front wheel up / down supporter 30 provided with the front wheel 27 has a hexagonal cross section, and is provided with a front wheel up / down cylinder 31 into which the front wheel up / down supporter 30 is inserted. Guide the supporter 30. A front wheel up / down screw body 32 for moving the front wheel up / down supporter 30 up and down and a front wheel up / down handle 33 for rotating the front wheel up / down screw body 32 are provided above the front wheel up / down cylinder 31. With this configuration, the vertical position of the front wheel 27 can be easily adjusted.

  With reference to FIG. 11 to FIG. 13, a description will be given of a work procedure in the case of pulling out the radish planted in two or three in one basket using the root vegetable harvesting machine in FIG. 1. FIG. 11 shows a case where two radishes are planted in one persimmon, and shows only necessary members of the root vegetable harvesting machine from the back side. The root crop harvesting machine according to the present embodiment is widened between these wheels so that the front wheels 27 and 27 and the rear wheels 26 and 26 that are traveling devices can travel in the groove, and is dug in front of the body of the transmission case 3. The digging / conveying device 40 for performing the wake-up work and the like is disposed at a biased position on the right side of the machine body. As the excavation work, among the two crops between the traveling devices, the one on the right side in FIG. 11 is excavated by running the root vegetable harvester from the front side of the drawing to the back side of the drawing (outward traveling). After that, the left-hand item is dug by running (return trip) from the back side of the drawing to the front side of the drawing to complete the excavation work of one ridge.

  FIGS. 12 and 13 show a case where three radishes are planted in one cocoon. As in FIG. 11, only necessary members of the root vegetable harvesting machine are shown from the back side. In the case of Article 3, the operator adjusts the distance between the wheels using the interval adjusting device 20 of the root vegetable harvester according to the present embodiment so that the front wheels 27 and 27 and the rear wheels 26 and 26 can travel in the groove ( The first half). As the excavation work, among the three crops between the traveling devices, the crop on the rightmost side in FIG. 12 is dug up with the vegetable harvester traveling forward, and then traveled back to the leftmost strip. Dig up things. Finally, as shown in FIG. 13, the distance adjusting device 20 adjusts the distance between the traveling devices 20 to dig up the three crops located in the center. When digging up the one located in the center, the items on both sides are already dug up, so even if the traveling device runs in the cage, it does not step on the foliage of the crop on the next row. There is no loss of work efficiency.

  By providing the excavating and conveying device 40 and the foliage conveying device 90 at a position biased to either side between the left and right drive wheels of the traveling device, the space between the drive wheels is widened to form a groove for the two-row planted ridge. The drive wheel can be allowed to travel. Since the traveling device does not travel on the fence, especially during the pulling work in the first half of the pulling work (the stage where the pulling of the next line in the same fence has not finished), There is no need to hold the foliage with running wheels, and the work efficiency is improved.

  In addition, by providing the left and right spacing adjustment mechanism 20 for the drive wheels, the work efficiency is improved for a triple-planted ridge as in the case of double-planting.

  FIG. 14 is a side view of the pulling and conveying unit D of the root vegetable harvester according to the second embodiment, and FIG. 15 is a plan view from the direction of the arrow Q in FIG.

  The root crop harvesting machine according to the second embodiment is provided with a scraping vertical adjustment device 53 for changing the vertical position of the scraping devices 50 and 51. The scraping devices 50 and 51 are configured as a single unit, and are connected to the body frame 8 by a scraping device frame 59 so as to be rotatable. The take-up / down adjustment device 53 is rotatably connected to the take-up device frame 59, and the up / down adjustment is performed by relatively moving a columnar body loosely fitted in the cylinder. The operation is performed by a vertical adjustment handle 54 provided above the scraping vertical adjustment device 53. The vertical adjustment handle 54 is not less than the upper surface of the scraping devices 50 and 51. The cylinders constituting the scraping up and down adjustment device 53 are pivotally connected to left and right support frames 57 provided above the digging and transporting device 40, so that the rigidity of the scraping devices 50 and 51 is secured while ensuring rigidity. Smooth up and down movement. The left and right support frames 57 are arranged away from the digging and conveying device 40 so as not to disturb the workers behind the machine body from seeing the crops to dig. In addition, a balance weight is provided in the left and right tread adjusting portion of the front wheel 27.

  The vertical scraping device 50 and the lateral scraping device 51 are configured to be slidable with respect to the scraping device frame 59. At this time, a plurality of support frames that are parallel to the scoring device frame 59 are provided to smooth the sliding motion of the scoring devices 50 and 51. The scraping device frame 59, the support frame, and the like have a hexagonal cross section and are slid by a screw mechanism.

  The root vegetable harvester according to the second embodiment is provided with a steering mechanism 100 for the left front wheel. The front wheel 27 is configured to be rotatable left and right around the front wheel cylinder 101 in the vertical direction, and a steering arm 102 is provided. The steering arm 102 is connected to the left and right connecting bars 103 fitted in the left and right support frames 57, and can be operated in the vicinity of the vertical adjustment handle 54 of the scraping devices 50 and 51 located on the right side of the machine body. In addition, the front-wheel cylinder 101 of the front wheel 27 can prevent the interference from a crop by making it the arch shape where the intermediate part bent. As shown in FIG. 16, the front wheel 27 fixes the front wheel supporter 104 provided with the front wheel to the front wheel cylinder 101 with the positioning pin 105 in the vertical position.

DESCRIPTION OF SYMBOLS 1 Root crop harvesting machine 3 Mission case 4 Transmission case 13 Steering member 20 Space | interval adjustment apparatus 40 Digging conveyance apparatus 41 Digging drive pulley 44 Digging endless belt 45 Digging circulation endless belt mechanism 50 Vertical stirrer 51 Horizontal scraping device 60 Support arm 61 Illuminating device 70 Cutting device 71 Cutting blade 72 Cutting blade holding case 73 Cutting transmission case 74 Vertical operation lever 75 Vertical connection mechanism 76 Connection plate 77 Switching arm 78 Locking member 90 Stem and leaf transport device 91 Transport drive Pulley 92 Conveyance driven pulley 93 Stem and leaf transport endless belt 94 Stem and leaf transport endless belt mechanism S Conveyance start end portion T of excavation transport device Conveyance end portion X of excavation transport device Conveyance start end portion Y of leaf and leaf transport device Transport end

Claims (8)

A traveling device for traveling in the field;
An excavating and conveying device (40) for excavating a crop from a field between the left and right drive wheels constituting the traveling device and conveying a foliage portion;
A cutting device (70) for cutting the stalks and leaves of the crop being conveyed by the excavating and conveying device (40);
In a root crop harvesting machine equipped with a foliage transporting device (90) for discharging and transporting the foliage cut by this cutting device (70) to the outside of the machine,
While arranging the conveyance terminal part (T) of the digging and conveying apparatus (40) on the left and right sides of the machine body longitudinal axis passing through the conveying start end (S) of the digging and conveying apparatus (40),
The conveyance start end (X) of the foliage conveyance device (90) is arranged above the crop conveyance locus of the excavation conveyance device (40),
The root vegetable harvesting machine characterized in that the conveying terminal portion (Y) of the foliage conveying device (90) is a traveling device side provided on one side of the left and right. Left and right transmission cases (4, 4) are provided in the transmission case (3) provided at the rear of the digging and conveying device (40),
The digging and conveying device (40) is constituted by a pair of digging and circulating endless belt mechanisms (45, 45) which are dug into a plurality of pulleys and wound around an endless body (44).
The foliage transport device (90) is constituted by a pair of foliage transport endless belt mechanisms (94, 94) in which a foliage transport endless belt (93) is wound around a plurality of pulleys,
The driving force from the left and right transmission cases (4, 4)
Left and right digging drive pulleys (41, 41) for driving the digging and conveying device (40);
The left and right transport drive pulleys (91, 91) that drive the foliage transport device (90) are respectively transmitted,
The left and right side excavation drive pulley (41) and the left and right side conveyance drive pulley (91) are arranged coaxially,
The root vegetable harvester according to claim 1, wherein the digging drive pulley (41) on the left and right other side and the conveyance drive pulley (91) on the left and right other side are arranged coaxially. Constituting the foliage conveying device (90),
While receiving a driving force from the conveyance driving pulley (91, 91),
Of the transport driven pulleys (92, 92) on the traveling device side provided on the left and right sides,
Place the one located on the front side of the aircraft inside the aircraft than the one located on the rear side of the aircraft,
The root vegetable harvesting machine according to claim 2, wherein a conveying terminal portion (Y) of the foliage conveying device (90) is arranged in front of an axis of a driving wheel of the traveling device. The digging and conveying device (40) and the foliage conveying device (90) are between the left and right drive wheels of the traveling device,
And arranged at a position biased to one of the left and right drive wheels of the traveling device,
The root vegetable harvester according to any one of claims 1 to 3, further comprising a distance adjusting device (20) for adjusting a left-right distance between drive wheels constituting the traveling device. The cutting device (70) is arranged on the front side of the machine body from the transfer terminal portion (T) of the excavation and transfer device (40),
The cutting device (70) is provided with a vertical movement mechanism for moving the cutting blade (71) up and down,
The vertical operation lever (74) of the cutting blade (71) is provided on the side of the steering member (13) provided above the mission case (3),
The vertical movement mechanism of the cutting blade (71) and the vertical operation lever (74) are connected by a vertical link mechanism (75), according to any one of claims 2 to 4. Root crop harvesting machine. Provide a scraping device (50, 51) that raises the foliage of the crop and guides it to the digging device (40),
The cutting device (70) is provided with a cutting blade holding case (72) provided with a drive mechanism for the cutting blade (71), and
A cutting transmission case (73) provided with a transmission mechanism for the rotational driving force of the cutting blade (71) is provided on the left and right sides of the cutting blade holding case (72), and the cutting blade holding case (72) Connect the upper and lower linkage mechanism (75) to the left and right other sides,
The left and right transmission cases (4, 4)
The root vegetable according to any one of claims 2 to 5, further comprising a branch transmission mechanism that branches a driving force to the scraping device (50, 51) and the cutting device (70). Harvester. The configuration in which the cutting blade holding case (72) is rotated with respect to the cutting transmission case (73) about the horizontal axis of the cutting blade holding case (72) is the vertical movement of the cutting blade (71). With the mechanism,
A connection plate (76) secured to the cutting blade holding case (72);
When the connection with the switching arm (77) constituting the upper and lower connection mechanism (75) is released,
The cutting blade holding case (72) becomes rotatable,
By a locking member (78) for restricting the rotational movement of the connection plate (76),
The root crop harvesting machine according to claim 6, wherein rotation of the cutting blade holding case (72) is restricted. A support arm (60) is provided from the machine body frame (8) toward the upper side of the digging and conveying device (40),
The support arm (60) is mounted so as to be able to rotate stepwise in the longitudinal direction of the aircraft,
The root vegetable harvester according to any one of claims 1 to 7, wherein an illumination device (61) is arranged at an upper end portion of the support arm (60).

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