JP2016036280A - Bulb vegetable harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bulb vegetable harvester with a stem and leaf cutting unit that is disposed of cutting blades in both sides of left and right of a foliage part and cuts the foliage part from both sides, and thereby eliminates the occurrence of uncut foliage and can escape when an excessive force is applied.SOLUTION: A stem and leaf cutting device 20 comprises: a pair of left and right cutting blades 52, 52 disposed in both sides of left and right of a conveyance path of garlic 10, and disposed while being partly overlapped; cutting shafts 51, 51 for fixing the cutting blades 52, 52; cutting cases 50, 50 for rotatably supporting the cutting shafts 51, 51 in one end; shoulder-arranging drive shafts 42, 42 serving as a drive shaft for rotatably supporting the other ends of the cutting cases 50, 50; a transmission mechanism 60 disposed between the drive shafts 42, 42 and the cutting shafts 51, 51; and a tension spring 53 serving as an elastic member for biasing the left and right cutting cases 50, 50 so as to approach each other.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a self-propelled bulb vegetable harvester that harvests bulb vegetables such as garlic and onion. In particular, it is related with the technique of the foliage cutting device which cuts the foliage part of a garlic.

  2. Description of the Related Art Conventionally, a root crop harvesting machine in which a digging part is provided in the front part, a conveying device is provided in the rear part, and a cutting device for cutting the foliage part is provided in the rear part of the conveying apparatus is known (for example, Patent Document 1). reference).

JP-A-9-31

  In the root vegetable harvesting machine described in Patent Document 1, the root vegetables after being pulled out from the straw are transported upward and backward by the transport device, and are cut by the cutting device in a state where the foliage portion is sandwiched at the rear portion. I tried to drop it on the field scene. Since the cutting device is configured to cut the foliage portion by rotating a single disc-shaped rotary blade, the foliage portion is pushed by the rotary blade to escape, and is cut or bent in a bent state. If it is insufficient, the foliage part far from the cutting blade may not be cut.

  The present invention has been made in view of the situation as described above, by arranging cutting blades on both the left and right sides of the foliage part, by cutting the foliage part from both sides, it can be cut cleanly without leaving uncut, Provided is a bulb vegetable harvester equipped with a foliage cutting device that can escape when excessive force is applied.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in Claim 1, it is provided on the traveling device so that the height can be adjusted, and the pulling and transporting device for pulling out the bulb vegetables and transporting them upward is provided on the front portion of the pulling and transporting device. A divider, a raising device provided at the rear of the divider to raise the leaf, a digging device arranged below the raising device, and a foliage cutting device arranged below the rear of the pulling and conveying device to cut the foliage And a root cutting device that is disposed below the foliage cutting device and excises the roots, and a leaf conveyor that discharges the leaf portion after cutting to the side disposed below the pulling and conveying device. In the bulb vegetable harvesting machine, the foliage cutting device is disposed on both sides of the conveyance path of the bulb vegetable, and a pair of left and right cutting blades that are partially overlapped, a cutting shaft that fixes the cutting blade, and a cutting The shaft is supported at one end for rotation A cutting case, a driving shaft that rotatably supports the other end of the cutting case, a transmission mechanism disposed between the driving shaft and the cutting shaft, and the right and left cutting cases are urged to approach each other It consists of an elastic member.

According to a second aspect of the present invention, a stopper is disposed on the opposing surfaces of the left and right cutting cases.
According to a third aspect of the present invention, the contact surface of the stopper is a flat surface.

As effects of the present invention, the following effects can be obtained.
Since the foliage cutting device cuts the foliage portion of the bulb vegetable from the left and right sides with a pair of left and right cutting blades, the cutting load is reduced, the cutting time is shortened, and a clean cut can be made without falling down the foliage. Moreover, even if a hard foreign material is conveyed and reaches the foliage cutting device, the left and right cutting blades can spread out to the left and right to prevent the drive mechanism from being stopped or damaged.

The whole perspective view of the harvester of this invention. Similarly left side view. Similarly right side view. Similarly rear view. FIG. The perspective view of a body frame and an upper frame. The perspective view which shows a drive structure. The side view of a foliage cutting device and a shoulder alignment device. FIG. The top view of a foliage cutting device. The side view of embodiment which provided the auxiliary foliage conveyance apparatus. The side view of an auxiliary foliage conveyance apparatus.

  In FIG. 1 to FIG. 5, the overall configuration of a garlic harvester 1 using garlic as a bulb vegetable will be described. The garlic harvesting machine 1 is for harvesting a plurality of garlics planted on a cocoon. In this embodiment, a garlic harvesting machine 1 that harvests garlic 10 planted in four rows will be described. In the following description, the F direction is defined as the front.

  The garlic harvesting machine 1 is provided with a body frame 3 on a crawler type traveling device having left and right crawlers 2 and 2 as a chassis, and the left and right crawlers 2 and 2 run across the ridges, and between the ridges on both sides of the planting strip Harvest while traveling so that the left and right crawlers 2 and 2 are positioned at the right. However, the distance between the left and right crawlers 2 and 2 can be narrowed so that the vehicle travels on a flat surface, and the vehicle travels by stepping on the planting strip.

  An upper frame 8 is supported on the body frame 3 so as to be rotatable up and down. As shown in FIG. 1 and FIG. 6, support columns 3a and 3a are erected on both the left and right sides of the front and rear halfway part of the body frame 3, and an elevating center shaft 80 is horizontally mounted on the upper portions of the support columns 3a and 3a. A rear portion of the upper frame 8 is supported on the shaft 80 so as to be rotatable up and down. The upper frame 8 includes a lower support frame 81 and a conveyance frame 82 attached to the upper side thereof. The lower support frame 81 is attached with a divider 11, a presser roller 14, a soil removing device 16, a shoulder aligning device 17, a root cutting device 18, and the like which will be described later. . The conveying frame 82 is attached to the raising device 12 and the drawing conveying device 15.

An electro-hydraulic cylinder 6 is interposed between the lower portion of the lower support frame 81 and the body frame 3 (FIGS. 3 and 4), and the upper frame 8 can be moved up and down around a lifting center shaft 80. The height of the device 12, the digging device 13, and the drawing and conveying device 15 can be changed by extending and contracting the electric hydraulic cylinder 6. Further, by using the electric hydraulic cylinder 6 as the elevating drive device, the expansion / contraction length can be easily controlled electrically.
The engine 4 is placed on the left side of the body frame 3, the steering support frame 3b is erected on the left rear part of the body frame 3, and the control unit 5 includes a main clutch lever, a steering lever, and the like on the steering support frame 3b. Is placed. That is, the engine 4 is disposed in front of the control unit 5. The power from the engine 4 can be driven by transmitting the power to the mission case 7 disposed between the left and right crawlers 2, the trigger device 12, the pulling / conveying device 15, the root cutting device 18, and the foliage cutting device 20, which will be described later. I am doing so.

  The conveying frame 82 supports the drawing / conveying device 15, and as shown in FIG. 6, a mounting frame 82a for attaching the driving pulley 24, the driven pulley 25, and the guide pulley 26 that supports the conveying belt 27 serving as conveying means. , A support frame 82b for supporting the mounting frame 82a, a connecting stay 82c for connecting the mounting frame 82a and the supporting frame 82b, a reinforcing frame 82d for connecting the supporting frames 82b, 82b,.

  The mounting frame 82a is provided with a pair of left and right with respect to one strip, and has four pairs for harvesting four strips, and is arranged in the front-rear direction. The support frame 82b is disposed in the front-rear direction on both sides of the planting strip, that is, on both sides of the pair of left and right mounting frames 82a and 82a. The mounting frame 82a and the support frame 82b are arranged in parallel in the left-right direction, and connecting stays 82c, 82c,... Are arranged in the left-right direction with an appropriate interval in the front-rear direction to connect and fix the mounting frame 82a and the support frame 82b. The support frame 82b is fixed to the upper part of the lower support frame 81. The reinforcing frame 82d has a triangular shape when viewed from the side, and is arranged on the support frame 82b so as to face each other. The reinforcement frames 82d, 82d on the left and right support frames 82b, 82b,. It is connected with. That is, the plurality of reinforcing frames 82d, 82d,... Arranged on the left and right are connected by the connecting pipe 82e, and a pair of front and rear are arranged.

  A divider 11 is provided at the front end of the support frame 82 b of the transport frame 82, and a raising device 12 is disposed at the rear of the divider 11. The divider 11 weeds the foliage portion 10b of the garlic 10 that has been entangled or slept by passing between the planting strips. The raising device 12 pulls up the foliage portion 10b after weeding, and the tine is rotated vertically to lift the weeded stem. Since the raising devices 12 are arranged on both sides of the planting strip, five are arranged in parallel. The lower part of the raising case 12a of the raising device 12 is fixed to the front end of the support frame 82b, and the upper rear part is fixed to the connecting pipe 82e.

  A digging and raising device 13 is disposed below the raising device 12. The digging device 13 includes a digging and raising blade 13a having a substantially U shape when viewed from the front, a support 13b that swingably supports the digging and raising blade 13a, a drive unit 13c, and the like. The support 13b is disposed on both the left and right sides of the front portion of the conveyance frame 82, and supports the upper portions of the left and right sides of the digging blade 13a so as to be swingable back and forth. The upper part of the digging blade 13a is supported by a pin so as to be swingable back and forth, and a plurality of support holes are provided on the side surface of the digging blade 13a at predetermined intervals in the vertical direction to change the mounting position of the pin. By doing so, the depth of digging can be adjusted. In this embodiment, the digging and raising blade 13a has a width capable of digging up four lines. A driving portion 13c is connected to the upper portion of the digging blade 13a so that it can be driven back and forth. Then, the digging blade 13a is inserted into the soil of the reed and positioned below the ball portion 10a of the garlic 10, and the digging and retreating blade 13a is moved forward and backward to break up the reed and destroy the soil. It is made soft so that the garlic 10 can be pulled out easily.

  A pressing roller 14 is disposed at the upper rear portion of the digging and raising device 13 and at the front lower side of the drawing and conveying device 15. The presser rollers 14 are arranged on both sides of the garlic 10 planting strip, and in this embodiment, five presser rollers 14 are arranged. The presser roller 14 is rotatably supported at one end (lower end) of the arm, the other end (upper end) of the arm is rotatably supported at the front lower portion of the conveyance frame 8, and the arm is spring-loaded so as to rotate downward. Etc. are energized. Thus, when the garlic 10 is pulled up by the pulling and conveying device 15, the multi-film covering the ridge is pressed downward by the presser roller 14 so that the multi-film cannot be lifted together. By adopting such a configuration, the multi-film is dug up from both sides, the blades 13a are inserted into the cage, the multi-film is pressed without tearing, and only the garlic 10 is lifted and pulled out, and conveyed rearward and upward. It is.

  The drawing / conveying device 15 is provided so as to be inclined at the front, lower, and rear heights. The garlic 10 is picked up and conveyed backward while nipping the foliage portion 10b of the garlic 10 and conveying it upward and backward. The drawing / conveying device 15 is mounted on a conveying frame 82. The drive pulleys 24, 24,..., The driven pulleys 25, 25,... And the guide pulleys 26, 26, which serve as conveying means, are attached to the lower side of the mounting frames 82a, 82a,. Since the conveying means is arranged in four sets for four strips and one set is arranged symmetrically, the pulling and conveying apparatus 15 attached to one attachment frame 82a will be described.

  A conveying drive shaft 56 that fixes the drive pulley 24 protrudes downward and is rotatably supported at the rear end of the mounting frame 82a. A driven shaft 57 (FIG. 4) that rotatably supports the driven pulley 25 is fixed to the front end of the mounting frame 82a so as to protrude downward. A plurality of guide pulleys 26, 26,... Are rotatably supported between the drive pulley 24 and the driven pulley 25 at appropriate intervals. The A conveyor belt 27 is wound around the drive pulley 24, the driven pulley 25, and the guide pulley 26. Thus, the foliage portion 10b of the garlic 10 is sandwiched between the left and right transport belts 27, 27, and the garlic 10 is pulled out at the front portion of the pulling and transporting device 15 and transported backward. Since the driving pulley 24, the driven pulley 25, and the shaft for supporting the guide pulley 26 (the conveying driving shaft 56, the driven shaft 57, and the guide pulley shaft 58) are provided so as to protrude downward from the mounting frame 82a, the conveying belt 27 will be described later. It can be arranged as close as possible to the shoulder aligner 17, and the foliage portion 10 b can be pulled upward from as close as possible to the shoulder of the garlic 10 so that the guide pulley 26 does not get in the way.

  As shown in FIGS. 1, 3, and 7, a soil dropping device 16 is disposed behind the pressing roller 14 and in front of and below the pulling and conveying device 15. The earth dropping device 16 includes a rotating shaft 16a rotatably supported on the lower support frame 81, and elastic bodies 16b, 16b,. In the present embodiment, the elastic body 16b has a structure in which three rod-shaped bodies project at intervals of 120 degrees. However, the elastic body 16b is not limited, and four or more elastic bodies 16b may be provided, or may be configured by a brush or the like. It is. Further, a driving pulley 16c is fixed to one end of the rotating shaft 16a so that the belt can be driven. In the present embodiment, two sets of front and rear soil removal devices 16 are arranged and are driven to rotate in opposite directions. Thus, by rotating the rotating shaft 16a, the elastic body 16b is brought into contact with the root portion of the garlic 10 being conveyed from below, so that the soil adhering to the root can be dropped during transportation without damaging the garlic 10. is there. And since the elastic body 16b is contact | abutted from the front direction and the back direction by the front and back soil dropping apparatus 16 * 16, the soil entangled in the root can be dropped neatly.

  Four sets of shoulder aligning devices 17 are arranged in a substantially horizontal direction in the front-rear direction below the rear portion of the drawing / conveying device 15 and supported by the lower support frame 81. Since each set of shoulder alignment devices 17 has the same configuration, only one shoulder alignment device 17 will be described. As shown in FIGS. 7, 8, and 9, the shoulder aligner 17 has a pair of left and right belts 47, 47 wound around a shoulder alignment drive pulley 43 and a driven pulley 46. By driving in synchronization with the pulling and conveying device 15, the foliage portion 10b of the garlic 10 is pulled up by the pulling and conveying device 15, and the boundary portion between the ball portion 10a and the foliage portion 10b of the garlic 10 is used as a shoulder. The shoulder portion is stopped by the belts 47 and 47 of the shoulder aligning device 17 so that the shoulder portion is aligned.

  A root cutting device 18 is disposed below the midway portion of the shoulder alignment device 17. The root cutting device 18 has a clipper reciprocating blade arranged in the left-right direction. The root cutting device 18 has a length in the left-right direction that matches the left-right width of the drawing / conveying device 15 so that the roots of the garlic 10 for four strips can be cut at a time.

A stalking device 19 is disposed on the rear part of the shoulder aligning device 17, and a foliage cutting device 20 is disposed on the rear part of the stalking device 19. The foliage cutting device 20 will be described later. The stalking device 19 is composed of a pair of left and right holding plates 19a and 19a formed in a star shape. The holding plates 19a and 19a are made of an elastic plate such as rubber, and the left and right holding plates 19a and 19a are in contact with each other. It is supported rotatably. The height (thickness) of the holding plates 19a and 19a in the vertical direction is matched with the length for leaving the garlic stem.
In this way, the garlic 10 that has passed through the shoulder aligning device 17 is conveyed backward while the upper stem and leaf portion 10b of the ball portion 10a is held in the substantially vertical direction by the stem adjusting device 19, and the stem and leaf portion 10b is substantially the same. It is cut by the foliage cutting device 20 so as to remain in the length. Note that the length of the foliage portion 10b remaining on the ball portion 10a after being cut by the foliage cutting device 20 is determined by the distance from the lower end of the belt 47 to the cutting blade 52 of the foliage cutting device 20, and is on the shoulder alignment drive shaft 42. It can be changed in several stages by exchanging the collars fitted on the upper and lower sides of a fixed cutting blade drive sprocket 44 to be described later. However, this change configuration is not limited, and a plurality of pin holes can be opened in the shoulder alignment drive shaft 42 and changed by replacing the pins.

  Furthermore, an auxiliary foliage conveying device 110 is provided at the rear upper side of the shoulder aligning device 17 and the rear lower portion of the drawing conveying device 15 so as to securely clamp the cut foliage portion 10b, which will be described later. It can also be configured to be conveyed to. As shown in FIGS. 11 and 12, the auxiliary foliage transport device 110 aligns the shoulder from the front upper side of the foliage cutting device 20 (above the root cutting device 18) to the upper rear side of the shoulder aligning device 17 and above the leaf discharging conveyor 23. It is arranged in parallel with the apparatus 17 so as to match the conveyance path. Since four sets of auxiliary foliage conveying devices 110 are arranged corresponding to the four lines, only one auxiliary foliage conveying apparatus 110 will be described.

  The auxiliary foliage conveyance device 110 includes a pair of left and right drive pulleys 112 and 112 provided at the rear of the pair of left and right auxiliary foliage conveyance frames 111 and 111, and a pair of left and right provided at the front of the pair of left and right auxiliary foliage conveyance frames 111 and 111. Driven pulleys 113 and 113, a pair of left and right drive pulleys 112 and 112, and a pair of left and right driven pulleys 113 and 13, and a pair of left and right clamping belts 114 and 114, and the shoulder alignment drive shaft 42 and Transmission pulleys 115 and 115 fixed on the belt 42, transmission belts 116 and 116 wound between the transmission pulleys 115 and 115 and the drive pulleys 112 and 112, and the like.

  The drive pulley 112 is constituted by a double pulley, and can wind the pinching belt 114 and the transmission belt 116. The transmission pulley 115 is disposed between the drive pulley 112 and the driven pulley 113, and the rear portion of the auxiliary foliage transport device 110 extends rearward from the rear portion of the shoulder aligner 17. Mounting frames 117 and 117 are provided below the lower surfaces of the rear portions of the auxiliary foliage transport frames 111 and 111, and lower ends of the mounting frames 117 and 117 are fixed to the transport transmission case 40. Thus, the auxiliary foliage transport device 110 is supported by the transport transmission case 40.

  In such a configuration, the power transmitted to the shoulder alignment drive shaft 42 is transmitted to the drive pulley 112 via the transmission pulley 115 and the transmission belt 116 so that the pinching belt 114 can be rotationally driven from the drive pulley 112. Yes. Thus, the left and right clamping belts 114 and 114 are rotated in opposite directions and rotated in synchronization with the pulling and conveying device 15 and the shoulder aligning device 17, so that the garlic 10 conveyed by the pulling and conveying device 15 is The foliage portion 10b is sandwiched between the shoulder alignment device 17 and the auxiliary foliage conveyance device 110 and conveyed rearward, after the shoulders are aligned, the root portion is cut, and the foliage portion 10b at the upper part of the ball portion 10a is replaced by the styling device 19. Since the auxiliary foliage conveying device 110 and the shoulder aligning device 17 at a lower position than the pulling and conveying device 15 are sandwiched between the upper and lower sides when being arranged and cut by the above, the foliage portion 10b is surely stabilized without coming off. Can be cut while being conveyed. Then, it can be reliably placed on the leaf conveyor 23.

  Under the rear end of the shoulder aligning device 17, a receiving rod 21 is disposed so as to be receivable and releasable (FIG. 4), and a container base 22 is disposed below the receiving rod 21. .. Are placed left and right on the container base 22 so that the garlic 10 falling from the rear end of the shoulder aligner 17 can be stored. The receptacle 21 is in a normally released state, and when the container 9 is full, the receptacle 21 is placed in the acceptance position, the garlic 10 falling from the shoulder aligning device 17 is temporarily received, and the receptacle 9 is received while the container 9 is replaced. In addition, after the replacement, the garlic 10 can be stored in the container 9 that is released and replaced.

Further, a leaf discharge conveyor 23 for discharging the cut leaves to the side is disposed above and behind the shoulder aligning device 17 and below the rear end of the pulling and conveying device 15. The leaf conveyor 23 comprises a belt conveyor, and is configured to discharge to the right side opposite to the control unit 5 in the left-right direction.
A spare container base 30 on which an empty container is placed on the right side of the drawing / conveying device 15 is disposed so as to be folded upward and stored.

Next, the drive configuration will be described with reference to FIGS. 1, 2, 3, and 7. FIG.
An output pulley 87 is fixed to the output shaft of the engine 4, and power is transmitted from the output pulley 87 to a travel drive pulley 90 disposed behind the belt via a belt. The travel drive pulley 90 is fixed to the travel drive shaft 91 so that power is transmitted from the travel drive shaft 91 to the transmission case 7 via a pulley, a belt, or the like.

  Further, a transmission pulley is fixed on the travel drive shaft 91, and power is transmitted to a work drive pulley 92 provided above the belt via a belt. The work drive pulley 92 is fixed on the elevating central shaft 80, and a transmission pulley 93 and an arm 89 are fixed on the right side of the elevating central shaft 80, and the crank motion caused by the rotation of the arm 89 is transmitted to the root cutting device 18. Informs and drives the reciprocating blade. Power is transmitted from the transmission pulley 93 to the drive pulleys 16c and 16c and the transmission pulley 88 of the soil removal device 16 via the belt 94 to drive the soil removal device 16. Further, the transmission pulley 88 is dug up through the belt pulley to transmit power to the drive shaft 95 to drive the dug up device 13. The apparatus 12 is driven by excavating and driving the belt 12 through a belt from a pulley fixed to the left end of the drive shaft 95 and transmitting the power to the drive shaft 96 of the apparatus 12.

  A transmission pulley is fixed to the left side of the elevating central shaft 80, and power is transmitted from the transmission pulley to the input shaft 41 of the transport transmission case 40 through the belt and the pulley. The conveyance transmission case 40 is laterally arranged on the rear part of the lower support frame 81 in the left-right direction. As shown in FIGS. 7, 8, and 9, the shoulder alignment drive shafts 42, 42,. -Protrudes upward. A shoulder alignment drive pulley 43 and a cutting blade drive sprocket 44 are fixed to the shoulder alignment drive shaft 42, and the shoulder alignment device 17 and the stalking device 19 are driven from the shoulder alignment drive pulley 43 via the belt 47 to drive the cutting blade. The foliage cutting device 20 is driven from the sprocket 44 through the chain.

Further, power is transmitted from the upper end of the shoulder alignment drive shaft 42 to the transport drive shaft 56 via the universal joint 54, the transmission shaft 55, and the universal joint 59 to drive the pulling and transporting device 15.
A transmission pulley 97 is fixed on the input shaft 41 of the transport transmission case 40, and power is transmitted from the transmission pulley 97 to the input shaft 98 of the leaf conveyor 23 via the belt and pulley. 23 is driven.

Next, the foliage cutting device 20 will be described with reference to FIGS.
A foliage cutting device 20 is disposed above the shoulder aligning device 17 and the stalking device 19 and below the drawing and conveying device 15. The foliage cutting device 20 is disposed on both the left and right sides of the conveying path of the garlic 10, and a pair of left and right cutting blades 52, 52 that are partially overlapped with each other, and a cutting shaft 51 that fixes the cutting blades 52, 52. 51, cutting cases 50 and 50 that rotatably support the cutting shafts 51 and 51 at one end, and shoulder-aligned drive shafts 42 and 42 that serve as driving shafts that rotatably support the other ends of the cutting cases 50 and 50 And a transmission mechanism 60 disposed between the drive shafts 42 and 42 and the cutting shafts 51 and 51, and a tension spring 53 serving as an elastic member for biasing the left and right cutting cases 50 and 50 closer to each other. .

  The cutting blade 52 is a disc-shaped rotary blade, and the left and right cutting blades 52 and 52 partially overlap each other in plan view. In the present embodiment, the right cutting blade 52 is the upper and left cutting blade 52. Is arranged on the lower side, and the vertical distance between the two is not contacted and is arranged to be as narrow as possible.

  A locking piece 50a is erected on the upper surface of the middle part before and after the cutting case 50, and a tension spring 53 is locked between the locking pieces 50a and 50a on the left and right cutting cases 50 and 50 to cut the left and right cuts. The blades 52 and 52 are biased so as to approach each other. The tension spring 53 is arranged behind the cutting blade 52 and ahead of the shoulder alignment drive shaft 42 that is the center of rotation of the cutting case 50 so as not to interfere with the garlic 10. And when the hard foreign material etc. are conveyed between the cutting blade 52 and the cutting blade 52, it is made to spread. In this way, when an excessive force is applied or when a hard foreign object or the like is conveyed, the cutting cases 50 and 50 spread outward to avoid breakage.

  And stopper 50b * 50b is arrange | positioned by the surface where cutting case 50 * 50 opposes. In other words, the stopper 50b is disposed on the right side of the left cutting case 50 and on the left side of the right cutting case 50, and when the left and right cutting cases 50, 50 are attracted by the tension spring 53, the stoppers 50b, 50b are disposed. Are in contact with each other so that the amount of overlap of the left and right cutting blades 52, 52 in plan view becomes the set amount. The stopper 50b is arranged behind the cutting blade 52 and ahead of the shoulder alignment drive shaft 42 that is the center of rotation of the cutting case 50 so as not to interfere with the garlic 10 being conveyed. In the present embodiment, a stopper 50b is disposed below the tension spring 53, and the stoppers 50b are disposed close to each other so as to operate efficiently.

  The stopper 50b is formed by bending the plate body into a hat shape in plan view so that the contact surface 50c is flat. In other words, if the balance between the tensile forces of the stopper 50b and the stopper 50b is lost, the cutting case 50 rotates around the shoulder alignment drive shaft 42, so that the vertical surfaces of the stopper 50b and the stopper 50b come into contact with each other in the front-rear direction. Thus, the center between the shoulder alignment drive shaft 42 and the shoulder alignment drive shaft 42, that is, on the extension of the conveying path of the garlic 10, is brought into contact with a plane so that the cutting blades 52 and 52 are not displaced from side to side. .

  The transmission mechanism 60 includes a shoulder alignment drive shaft 42, a cutting blade drive sprocket 44 fixed on the shoulder alignment drive shaft 42, a driven sprocket 61 fixed on the cutting shaft 51, a driven sprocket 61, and a cutting blade. The chain 62 is wound around the drive sprocket 44. Thus, the power transmitted from the engine 4 to the transfer transmission case 40 is transmitted to the shoulder alignment drive shaft 42, the cutting blade drive sprocket 44, the chain 62, the driven sprocket 61, the cutting shaft 51, and the cutting blade 52, and is rotationally driven. .

  In this way, it is transported to the pulling and transporting device 15, transported backward while the shoulders are aligned by the shoulder aligning device 17, pinched by the stalking device 19 and stabilized in posture, and at the same time, the foliage portion is cut by the cutting blades 52 and 52. The predetermined portion of 10b is left for the set length, and the foliage portion 10b is cut. And since the foliage cutting device 20 cuts the foliage portion 10b of the bulbous vegetables from the left and right sides with the pair of left and right cutting blades 52 and 52, the cutting load is reduced, the cutting time is shortened, and the foliage is cut cleanly without falling down. It can be a trace. Moreover, even if a hard foreign material is conveyed and reaches the foliage cutting device 20, the left and right cutting blades 52, 52 respectively provided on each strip can spread out to the left and right and prevent the drive mechanism from being stopped or damaged. .

DESCRIPTION OF SYMBOLS 1 Garlic harvesting machine 11 Divider 12 Raising device 13 Digging raising device 15 Pulling and conveying device 16 Soil removal device 17 Shoulder alignment device 18 Root cutting device 20 Stem and leaf cutting device 50 Cutting case 50b Stopper 52 Cutting blade 53 Tension spring

Claims (3)

  A pulling / conveying device that is provided on the traveling device so that the height can be adjusted and pulls out the bulb vegetables and then transports upward, a divider that is provided at the front of the pulling / conveying device and weeds, and at the rear of the divider A raising device provided to raise the leaf part, a digging device arranged below the raising device, a foliage cutting device arranged below the rear part of the pulling and conveying device to cut the foliage part, and below the foliage cutting device In a self-propelled bulb vegetable harvesting machine, comprising: a root cutting device arranged to cut a root; and a leaflet conveyor for discharging a leaf portion after cutting to a side arranged below and behind the pulling and conveying device. The cutting device is arranged on both sides of the conveyance path for bulbous vegetables, a pair of left and right cutting blades that are partially overlapped, a cutting shaft that fixes the cutting blade, and a cutting shaft that is rotatably supported at one end Cutting case and the cutting case A drive shaft that rotatably supports the other end of the screw, a transmission mechanism disposed between the drive shaft and the cutting shaft, and an elastic member that urges the left and right cutting cases to approach each other. Characteristic bulb vegetable harvesting machine.   The bulb vegetable harvesting machine according to claim 1, wherein stoppers are disposed on opposing surfaces of the left and right cutting cases. The bulb vegetable harvesting machine according to claim 2, wherein the contact surface of the stopper is a flat surface.

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