JP3918861B2 - Seedling planting machine - Google Patents

Description

  The present invention relates to a seedling planting machine. It can be used for a vegetable seedling planting machine in a walking operation mode or riding operation mode.

Conventionally, a technology is known in which both a supply transmission system that transmits a seedling supply device and a planting transmission system that transmits a seedling planting mechanism are configured to be intermittently rotatable via a one-rotation clutch (Patent Literature). 1).
JP-A-11-227593

  This invention makes it a subject to enable it to wash | clean the inner surface of the seedling planting basket of a seedling planting mechanism.

In order to solve the above problems, the present invention has the following configuration.
In other words, an engine (7) is mounted on the front and left and right wheels (8) supported by the axle housing (10) and a handle (12) on the rear is held on the soil surface while holding the seedlings. A seedling planting mechanism (3) provided with a seedling planting gill (22) to be attached, and a plurality of seedling cups (20) containing seedlings, and seedlings stored in the seedling cup (20) are referred to as the seedling transplanting plant (22) In a seedling planting machine provided with a seedling supply device (1) that drops and supplies the seedling, the supply transmission system (2) that is transmitted to the seedling supply device (1) continuously drives the seedling supply device (1). The seedling planting mechanism (3) temporarily stops at the position where the seedling planting mechanism (3) receives the seedling supplied from the seedling feeding device (1) to the planting transmission system (4) transmitted to the seedling planting mechanism (3). The seedling planting mechanism (3) is provided with a planting fixed rotation clutch (5) that automatically turns the transmission on and off. The supply constant rotation clutch (6) is provided in the supply transmission system (2), and the planting constant rotation clutch (5) and the supply constant rotation clutch (6) are both operated in a disengaged state. A single operation lever (49) is provided, and a liquid is placed on the upper side of the axle housing (10) provided in an offset state on the vehicle body and on the tank base (61) attached to the axle housing (10). A tanker (17) was provided, and the seedling transplanter was configured to be connected via a discharge hose (71) to a cleaning nozzle (73) in which the liquid pump (16) was seen on the inside of the seedling planter (22).

Therefore, since the seedling supply device (1) is continuously driven, it is easy to supply the seedling to the seedling cup (20), and the seedling planting mechanism (3) receives the seedling supplied from the seedling supply device (1). Since it stops once at the position, it can supply the seedlings stored in a stable posture to the seedling planting mechanism (3), and the seedling planting mechanism (3) can accurately hold the seedlings and stabilize the seedling planting posture. It is possible to carry out accurate seedling planting. Furthermore, the planting fixed rotation clutch (5) and the supply constant rotation clutch (6) can be operated in a disconnected state by a single operation lever (49). Then, an axle housing (10) for supporting the left and right wheels (8) is provided, and attached to the axle housing (10) above the offset side of the axle housing (10) provided in an offset state on the vehicle body . A configuration in which a liquid tank (17) is provided on the tank base (61), and the liquid pump (16) is connected to a cleaning nozzle (73) that is viewed on the inside of the seedling planting plant (22) via a discharge hose (71). As a result, the inner surface of the seedling planter (22) can be cleaned.

  The present invention can be implemented in the following forms. In other words, the present invention can be effectively implemented as a transmission device for a seedling transplanter in a traveling form or a riding form, particularly as a seedling transplanter for transplanting vegetable seedlings.

  First of all, as a transmission system of a seedling machine having a planting constant rotation clutch that automatically enters and exits a planting transmission system that transmits a seedling planting mechanism to a feeding transmission system that continuously transmits a seedling feeder, Stabilize the planting posture and allow accurate seedling planting.

  Here, the seedling supply device supplies and holds seedlings to the seedling planting device, and arranges a number of seedling cups around the rotating table, and seedlings stored in each seedling cup are seedling planting mechanisms. Can be supplied by dropping at a position. The table serving as the seedling supply device is configured to be continuously rotated by a supply transmission system.

  The seedling planting mechanism is intermittently operated by a planting transmission system having a planting fixed rotation clutch, and can be stopped at a position where the seedling is fed from the top dead center seedling feeding device. The intermittent rotation of the intermittent transmission clutch is automatically performed. The planting transmission system is equipped with a speed change transmission device, and in the mode in which the planting seedling interval can be changed, the planting fixed rotation clutch is automatically operated by the clutch pin rotated by this speed change transmission device. Can be made. This planting fixed rotation clutch can be in the form of a single rotation clutch.

  Next, a supply constant rotation clutch provided in the supply transmission system and a planting constant rotation clutch of the planting transmission system are provided so as to be manually interlocked, and the supply constant rotation clutch and the planting constant rotation clutch are manually operated. The interlocking operation is performed, and the stop positions of the seedling supply device and the seedling planting mechanism are aligned or confirmed. Here, the supply constant rotation clutch is turned on and off by this manual operation, and can be switched to the always-on position during normal seedling planting transmission. Moreover, the planting fixed rotation clutch is configured to be interlocked so as to be automatically turned on and off and also manually turned on and off.

  Furthermore, a supply transmission system is arranged at a position closer to the left and right sides of the seedling planting operation position by the seedling planting mechanism, and a planting transmission system is arranged at a position closer to the opposite side, and the supply transmission system and the planting transmission system are To keep the aircraft's right and left weight balance. Here, each of these transmission systems is in the terminal section, and is configured to be branched from the traveling transmission system for transmission from the engine to the wheels.

  An embodiment of the present invention will be described with reference to the drawings.

  The seedling transplanter is equipped with an engine 7 at the front of the vehicle body, a wheel transmission case 9 with a shaft 8 mounted on the left and right sides by an axle housing 10, a handle frame 11 at the rear, and a handle 12. The seedling supply device 1, the supply transmission system 2, the seedling planting mechanism 3, the planting transmission system 4, and the like are arranged on the upper part of the vehicle body. Reference numeral 13 is an auxiliary wheel disposed on the left and right sides of the front end of the vehicle body, 14 is a cultivating wheel for cultivating seedling planting soil, and 15 is an auxiliary seedling stand. A liquid pump 16 and a liquid tank 17 are mounted on the upper side of the axle housing 10.

  The seedling supply device 1 includes a table 19 that can be rotated horizontally around a table shaft 18 and a seedling cup 20 disposed around the table 19, and the seedling cup 20 is directly above the seedling planting mechanism 3 by the rotation of the table 19. When it is located at the bottom, the bottom plate 21 is opened, and the contained seedling can be dropped downward. Such a seedling supply device 1 is in front of the handle 12 and is supplied to the seedling cup 20 one by one while the operator takes out the seedling with floor from the auxiliary seedling stand 15 in front. The seedling in the seedling cup 20 is dropped from the opening position of the bottom plate 21 every time the seedling cup 20 is positioned at the upper part of the seedling planting mechanism 3 by the rotation of the table 19. The rotation of the table 19 is performed through the supply transmission system 4.

  The seedling planting mechanism 3 includes a seedling planting basket 22 that opens and closes forward and backward, and a pair of seedling planting links 23 and 24 that open and close the seedling planting basket 22, and is transmitted by a planting transmission system 4. . These seedling planting links 23 and 24 are double-cranked by crankshafts 25 and 26 that are interlocked with the planting transmission system 4 and arms 28 and 29 that support the base end part of the transmission case 27 in a swingable manner. It is act | operated by the form and it is comprised so that the lower end part of the seedling planting basket 22 may draw the elliptical seedling planting locus line D.

  An opening / closing link 30 is provided along the seedling planting link 24 so as to open and close the seedling planting basket 22. The opening / closing link 30 is connected to the opening / closing link 30 by rotation of a cam 31 of the crankshaft 26. Can be opened and closed by pushing. The relationship between the seedling planting links 23 and 24 and the seedling planting basket 22 is that the shafts 32 and 33 at the front and rear ends of the seedling planting basket 22 are pivotally supported at the tips of the seedling planting links 23 and 24. 33 are connected by a stay 34, and the seedling links 23 and 24 are moved up and down by the rotation of the crankshafts 25 and 26, so that the seedling cage 22 is moved up and down in a parallel state. Then, a part of the opening / closing link 30 is connected to a part of the opening / closing pins 35 of the seedling planting basket 22, and in the descending planting process extending from the top dead center to the bottom dead center by the rotation of the cam 31, The seedling planting tub 22 is closed and operates to open in the ascending stroke.

  The transmission case 36 disposed at the front portion of the vehicle body 3 is interlocked with the engine 7 to transmit the transmission mechanism in the wheel transmission case 9 and to transmit the input shaft 37 of the transmission case 27. In the transmission case 27, a transmission gear 39 that is changed by operation of the transmission knob 38 is provided on the transmission shaft 40. A planting transmission shaft 41 transmitted from the transmission shaft 40 via the planting constant rotation clutch 5 is provided, and the crankshafts 25 and 26 are transmitted and rotated from the planting transmission shaft 41.

  The planting fixed rotation clutch 5 on the planting transmission shaft 41 is a one-rotation clutch as shown in FIG. 4, and a notch 43 on the ratchet ring 42 is engaged with a claw 45 urged by a spring 44. The When the claw 45 is engaged with the notch 43, the rotational transmission to the planting transmission shaft 41 is stopped, and when it is removed from the notch 43, the transmission is transmitted. Such a claw 45 is struck by a clutch pin 46 rotated integrally with the transmission shaft 40 rotated by the transmission gear 39 and rotated against the spring 44 to engage with the notch 43. Can be removed. In addition, the claw 45 is movable on the claw shaft 47, is moved by the operation rod 48, is switched between the range of rotation of the clutch pin 46 and the outside of the range, and is interlocked via the wire 50 by the manually operated lever 49. The An arm 51 is connected to the operation rod 48 and is connected to the wire 50 via a spring 52.

  Since the claw 45 is slidably contacted with the ratchet ring 42 in this way, when the ratchet ring 42 is rotated once, the claw 45 is engaged with the notch 43 and the rotation is stopped. . The phase is set so that this stop position is a position for receiving the seedling from the seedling cup 20 at the top dead center of the seedling planting basket 22. And this planting fixed rotation clutch 5 can rock | fluctuate the nail | claw 45 by rotation of the clutch pin 46, can disengage from the notch part 43 automatically, and can be transmitted. Then, by operating the lever 49, the claw 45 can be moved along the claw shaft 47 so that it can be operated in and out of the rotation range of the clutch pin 46, and when operated to the cutting position B, the claw 45 is positioned outside the rotation range of the clutch pin 46. 45 is always engaged with the notch 43, and the planting fixed rotation clutch 5 is always cut.

  A brake 53 brakes the rotation of the planting transmission shaft 41 and is braked simultaneously with the engagement of the claw 45 with the notch 43. The supply transmission system 2 transmits the transmission shaft 59 of the transmission case 56 under the table 19 from the transmission shaft 40 through the chain 55 in the transmission case 54. The transmission shaft 59 is transmitted to the table shaft 18 via the supply constant rotation clutch 6. Therefore, the supply constant rotation clutch 6 is turned on and off by the operation rod 57. The operating rod 57 is interlocked with the lever 49 and the wire 58 and is operated in synchronization with the planting fixed rotation clutch 5. When the operating rod 57 is pushed into the transmission shaft 59, the planting fixed rotation clutch 5 is moved in the axial direction by the cam operation to be cut off, and the planting rotary clutch 5 with which the operating rod 57 is retracted outward is spring force. It is the form which is pushed back by and enters the entering state.

  Therefore, in a state where the operation lever 49 is operated to the entering position A, the planting fixed rotation clutch 5 is configured to be in a state of entering at every fixed rotation angle or every rotation. The supply constant rotation clutch 6 is in a continuously rotating state with the operation rod 57 being retracted and always on. Further, when operated to the cutting position B, the planting low-rotation clutch 5 is kept in a state where the claw 45 is always engaged with the notch 43, and the supply constant rotation clutch 6 is operated by the operation rod 57. To maintain the clutch disengagement position.

  During the seedling planting operation, the table 19 is continuously rotated at a constant rotational speed by operating the lever 49 to the entry position A. This makes it easier for the operator to supply seedlings to the seedling cup 20 provided on the table 19. The seedling planting mechanism 3 is stopped every time when it is raised to the top dead center by the planting fixed rotation clutch 5, and when seedlings are supplied to the seedling planting cage 22, the seedling planting mechanism 3 is lowered by entering the clutch 5. The Rukoto. At this time, the planting fixed rotation clutch 5 is engaged by the clutch pin 46 which is rotationally transmitted and rotated by the shift of the transmission gear 39, so that the planting operation is performed according to the inter-plant spacing. At this time, the transmission of the supply transmission system 2 is also transmitted from the transmission shaft 40 that has passed through the transmission gear 39, so that the rotation speed of the table 19 corresponds to the interval between the stocks.

  The seedling planter 22 that moves up and down is operated on the front side of the table shaft 18 of the table 19, and the bottom plate 21 is opened and accommodated in the seedling cup 20 at the seedling supply position C directly above the seedling planter 22. Can be dropped. That is, when the seedling cup 20 containing the seedling comes to the seedling supply position C, the containing seedling is automatically dropped by the opening position of the bottom plate 21, and into the seedling planting plant 22 stopped at the top and bottom dead center. Fallen and contained. When the empty seedling cup 20 from which the seedling has been dropped is further rotated, the bottom plate 21 is in the closed position, so that the seedling taken out from the auxiliary seedling stand 15 can be supplied.

  The transmission case 27 for accommodating the planting transmission system 4 is arranged so as to detour from the seedling supply position C and the front side of the seedling planting basket 22 to the left outer side. Further, the transmission case 54 having the interior of the supply transmission system 2 is arranged along the right outer side opposite to this. As a result, these transmission cases 27 and 54 are arranged substantially symmetrically on the left and right, and the weight balance between the left and right can be achieved.

  As shown in FIGS. 6 and 7, the mounting portion of the liquid tank 17 has a tank base 61 mounted between the front axle housing 10 and the rear sub-housing 60 supported on the vehicle body in an offset form. The liquid tank 17 is placed on the base 61 and attached.

  Further, the liquid pump 16 has a plunger form, and a pump base 63 is attached with a bolt 64 to a bracket 62 for attaching and supporting the auxiliary seedling table 15 on the transmission case 27. The plunger pump 16 is attached to the front end of the pump base 63, and the plunger 65 of the pump 16 is provided with an interlocking tool 67 that forms a long hole 66. By fitting the long hole 66 to the drive roller 68, Wear so that it can be driven. The drive roller 68 is attached to an arm 69 that is rotated integrally with the arm 28 that supports the base of the seedling-planting link 23. The seedling link 23 is moved up and down by the rotation of the crankshaft 25 and the arm 28 is rocked back and forth around the arm shaft 70. Therefore, the plunger 65 of the pump 16 is driven by the arm 69 rotated together with the arm shaft 70. Is reciprocated. Moreover, the discharge amount by the pump 16 can be adjusted to many E and few F by moving this interlocking tool 67 back and forth and adjusting the length of the long hole 66. 71 is a discharge hose, 72 is a suction hose.

  The liquid pump 16 is driven by the seedling planting operation of the seedling planting mechanism 3. The discharge hose 71 is connected to a cleaning nozzle 73 that is seen on the inside of the seedling plant 22 (FIG. 9), so that the inner surface of the seedling plant 22 can be cleaned.

  10 and 11, the difference from the above example is that a tilling shaft 75 having a tilling claw 74 for crushing the soil surface G to be planted by the seedling planting plant 22 is used as the rotation center of the wheel transmission case 9. In this configuration, the wheel is transmitted and rotated by the chain 78 in the chain case 77 from the wheel transmission shaft 76 of the axle housing 10.

  The tillage shaft 75 may be supported by an intermediate portion of the wheel transmission case 9 and interlocked with a transmission chain or the like in the transmission case 9.

The top view of the seedling planting mechanism part of this invention. The transmission mechanism diagram. The some enlarged plan view. The enlarged side view of the one part. The side view of a seedling transplanter. The plan view. The side view of a tank base part. The disassembled perspective view of a liquid tank attaching part. The side sectional view of a seedling planting part. The side view of the seedling planting machine which shows another Example. The rear view of the wheel transmission case part.

Explanation of symbols

1: seedling supply device, 2: supply transmission system, 3: seedling planting mechanism, 4: planting transmission system, 5: planting constant rotation clutch, 6: supply constant rotation clutch, 7: engine, 8: wheel, 10: Axle housing, 12: handle, 16: liquid pump, 17: liquid tank, 20: seedling cup, 22: seedling planting, 49: lever, 71: discharge hose, 73: cleaning nozzle

Claims (1)

Seedlings that are planted on the soil surface while holding the seedlings in a vehicle body equipped with an engine (7) at the front and left and right wheels (8) supported by the axle housing (10) and a handle (12) at the rear A seedling planting mechanism (3) including a planting plant (22) and a large number of seedling cups (20) that store seedlings, and the seedlings stored in the planting cup (20) are dropped into the seedling planting plant (22). In the seedling planting machine provided with the seedling supply device (1) to be supplied, the supply transmission system (2) transmitted to the seedling supply device (1) is transmitted so as to continuously drive the seedling supply device (1). The seedling planting mechanism (3) temporarily stops at the position where the seedling planting mechanism (3) receives the seedlings supplied from the seedling feeding device (1) to the planting transmission system (4) transmitted to the seedling planting mechanism (3). A seeding planting mechanism (3) is provided intermittently by providing a planting constant rotation clutch (5) that automatically turns on and off the transmission. The supply transmission system (2) is provided with a supply constant rotation clutch (6), and the planting constant rotation clutch (5) and the supply constant rotation clutch (6) are both operated in a disconnected state. An operation lever (49) is provided, and a liquid tank (17 ) is provided on the upper side of the axle housing (10) provided in an offset state on the vehicle body and on the tank base (61) attached to the axle housing (10). ), And the liquid pump (16) is connected to the cleaning nozzle (73), which is viewed on the inside of the seedling planter (22), via the discharge hose (71).

Images