JP2009028052A - Rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the occurrence of missing plants due engaging and disengaging operations of unit clutches in a rice transplanter equipped with the unit clutches for carrying out the engagement and disengagement of driving of the planting parts and fertilizing part for a plurality of rows. <P>SOLUTION: This rice transplanter is equipped with planting claw unit clutches (49), (50), (51) for connecting/disconnecting the drive of the planting claws; rice plant longitudinally feeding unit clutch (58), (59), (60) for connecting/disconnecting feeding of seedlings on the seedling stand; and fertilizing unit clutches (64), (65), (66) for connecting/disconnecting sending-out of the fertilizer in the fertilizing part; and seedling stand detectors (114), (115) for detecting both left and right moving ends of the seedling stands (16), and on the basis of the detections (114) (115) the unit clutches (49), (50), (51)/(58), (59), (60)/(64), (65), (66) are connected/disconnected individually. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a rice transplanter that includes a seedling stage and a planting claw and continuously performs seedling planting work, and relates to a rice transplanter that performs fertilization simultaneously to the side of a planting strip.

  Conventionally, a rice transplanter having a plurality of unit clutches for turning on and off the driving for each of a plurality of sections of a planting unit and a fertilizer application unit is known.

  In such a rice transplanter, if the unit clutch is turned off while the seedling platform is moving left and right at a headland or the like, and the seedling removal operation by the seedling claw is stopped, the next time the unit clutch is turned on. At the time of the next planting operation, there is a disadvantage that a deviation occurs between the seedling picking position and the seedling planting claw position of the seedling stand that moves left and right, and some of the stocks are missing.

  Therefore, the rice transplanter in the invention described in claim 1 includes a seedling planting claw unit clutch for turning on and off the seedling planting claw, and a seedling vertical feed unit clutch for turning on and off the seedling vertical feed of the seedling stand. A fertilizer unit clutch for turning on and off the fertilizer in the fertilizer section, a planting unit drive member for operating the seedling planting claws and a seedling vertical feed unit clutch, and a fertilizer unit drive member for operating the fertilizer unit clutch The rice transplanter is provided with a seedling detection member that detects the left and right moving ends of the seedling mounting base, and is configured to turn on and off each unit clutch based on detection of the seedling detection member. It is what.

  Moreover, the invention described in claim 2 is the rice transplanter described in claim 1, wherein a seedling stand stop switch is provided for stopping the right and left movement of the seedling stage by turning off the planting clutch at the left and right moving ends of the seedling stage. It is characterized by that.

  Further, in the invention described in claim 3, in the rice transplanter according to claim 1, at least one of the seedling planting claw unit clutch, the seedling vertical feed unit clutch, and the fertilizer application unit clutch is turned off. Sometimes, the fertilizer feeding of the fertilizer is immediately turned off, but the driving of the seedling planting claws is not turned off until the seedling detection member detects the left and right moving ends of the seedling platform. It is what.

  According to the first aspect of the present invention, each unit clutch is turned on and off at the left and right moving ends of the seedling stage, and when the unit clutch is turned off and on, the seedling is always removed from the left and right ends of the seedling stage. It is possible to reliably prevent the generation of stocks and improve the planting accuracy during headland work.

  According to the invention described in claim 2, since the seedling stand stop switch for stopping the driving of the seedling stand by disengaging the planting clutch at the left and right moving ends of the seedling stand is provided, The stand can be stopped at the left and right moving ends, and the planting clutch can be turned off to improve the operability in the seeding work before starting the work.

  According to the invention described in claim 3, when the unit clutch is turned off while the planting clutch is engaged with the planting clutch engaged, such as immediately after the vehicle is turning, the seedling removal is performed until the seedling mounting platform reaches the left / right moving end. In addition, the fertilization can be interrupted immediately to prevent excessive fertilization and to eliminate the occurrence of uneven growth.

  Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a riding rice transplanter, and FIG. 2 is a plan view thereof. In FIG. 1, (1) is a traveling vehicle that is a traveling body on which an operator rides, and an engine (2) is mounted in front of a body frame (3). The front axle case (6) is supported in front of the transmission case (4) via the front axle case (5), and the rear axle case (7) is connected to the rear part of the transmission case (4). The rear axle case (7) is supported by the rear wheel (8) for paddy field traveling which is a wheel. The step (12), which is a vehicle body cover on which an operator rides through the footrest (11), is attached to both sides of the bonnet (9) covering the engine (2) and the like. Covering the mission case (4) and the like, a driver's seat (13) is attached to the upper part of the step (12), and a steering handle (14) is provided in front of the driver's seat (13) at the rear of the bonnet (9).

  Also, in the figure, (15) is a planting part having a seedling mounting stand (16) for six-row planting and a plurality of seedling planting claws (17), etc. A rotary case (21) that supports the seedling stage (16) on the planting case (20) through the lower rail (18) and the guide rail (19) so as to be slidable in the left-right reciprocating manner and is rotated at a constant speed in one direction. ) Is supported by the planting case (20), and a pair of claw cases (22) and (22) are arranged at symmetrical positions around the rotational axis of the case (21), and the claw case (22) ( 22) Attach the planting claws (17) and (17) to the tip. A support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and travels via a link mechanism (27) including a top link (25) and a lower link (26). A support frame (24) is connected to the rear side of the vehicle (1), and an elevating cylinder (28) for raising and lowering the planting part (15) via the link mechanism (27) is connected to the lower link (26), At the same time as the front and rear wheels (6) and (8) are driven to move, the seedlings are taken out from the seedling mount (16) that slides back and forth to the left and right with the planting claws (17), and seedlings are planted continuously. Configure to do work.

  In the figure, (29) is the main transmission lever, (30) is the planting lift lever, (31) is the planting sensitivity setting device, (32) is the main clutch pedal, (33) and (33) are the left and right brake pedals, ( 34) is a center float for leveling two strips, (35) is a side float for leveling two strips, and (36) is a fertilizer that is a fertilizing section for six strips.

  Further, as shown in FIGS. 3 and 4, a fertilizer hopper (37) for adding fertilizer, a fertilizer feeding case (38) which is a fertilizer feeding section for supplying a fixed amount of fertilizer, and a side crop of floats (34) (35) The fertilizer applicator (36) includes a turbo blower blower (41) and a cylindrical air tank (42) for discharging the fertilizer to the groove device (39) via the flexible transport hose (40), and a feeding case (38 ), The fertilizer fed from the blower (41) is conveyed to the grooving device (39) by the air flow from the blower (41) and fertilized.

  Moreover, the 1st-6th fertilization clutch (43) (44) (45) (46) (47) (48) which respectively turns on / off the drive of feeding members (38a), such as a feeding roll in each feeding case (38). ), And the first and second three of the first and the second, which are installed in the center and left and right planting cases (20) and the center two and right and left two seedling planting claws (17) are set as one set. 3 seedling planting claw unit clutches (49), (50), (51) and the first to sixth seedling vertical feed belts (52) (53) (54) (55) (56) Three first to third longitudinal feed unit clutches (58), (59) and (60) for turning on and off the drive as a set of the center two and left and right two of each set of (57), Each of the three clutch wires (61) (6 ) And (63) are connected to each other to form three first to third fertilization unit clutches (64), (65), and (66) of two central and two left and right, respectively. The minute feeding member (38a), the seedling extraction claw (17), and the seedling vertical feed belts (52) to (57) are provided so that they can be operated independently.

  A unit case body (68) having two planting and fertilizing unit cases (67a) and (67b) is fixed to the transmission shaft case (20a) between the center and right planting cases (20), and each unit case (67a ) (67b) Planting for turning on and off the driving of the feeding member (38a), the seedling picking claw (17), and the seedling vertical feed belts (52) to (57) for each of the central two and the left and right two And fertilizer application unit clutch actuators (69) and (70), respectively.

  The actuating device (69) (70) includes an electric planting and fertilizing motor (71) (72) which is a planting and fertilizing unit driving member, and a motor shaft (71a) of the motor (71) (72). Planting and fertilizing cam shafts (75) (76) linked to (72a) via a pair of reduction gears (73) (74), and fixed to the cam shafts (75) (76). Planted and fertilized cam bodies (77) (78) having uneven cam surfaces (77a), (77b), (78a), (78b), and unit cases (67), (68) with the central portion of each support shaft ( 79) One end side of rollers (82), (83) and (84) which are supported in a swingable manner via (80) and (81) and which are brought into rolling contact with the cam surfaces (77a) (77b) and (78a) (78b) The first and third actuating arms (85 for the center and left and right two-unit clutch respectively) (86) and (87), respectively, and the other end side of each operating arm (85) (86) (87) of the planting unit clutch operating device (69) is the first to third seedling planting claws. The first to third seedling planting claw unit clutch (49) through the clutch wires (88) (89) (90) and the first to third clutch wires (91), (92), and (93) for vertically feeding the seedlings (50) (51) and the seedling vertical feed unit clutch (58) (59) (60) are interlocked and connected, and the first seedling planting claws are generated by the swinging of the first operating arm (85) by the cam body (77). And the seedling vertical feed unit clutch (49) (58), and the second swinging arm (86) swings the second seedling planting claw and the seedling vertical feed unit clutch (50) (59) to the third swing. The third seedling planting claw and seedling vertical feed unit clutch (51) (6) The fertilizing unit clutch actuating device (70) is configured so that the other end of each actuating arm (85) (86) (87) is connected to the fertilizing first to third clutch wires (94). ), (95), (96) and the first to third fertilization unit clutches (64), (65), (66) to be interlocked and connected to each of the operating arms (85), (86) ( The unit clutches (64), (65), and (66) are configured to be turned on and off by the swing of (87).

  Further, rotation detection pieces (97) (98) are fixedly provided on the side surfaces of the cam bodies (77) (78), and actuators (99a) for potentiometer type planting and fertilizer application unit clutch position sensors (99) (100) are provided. ) (100a) is connected to the detection pieces (97) (98), and the unit clutches (49) to (51), (58) to (60), ( 64) to (66) are detected.

  When all the rollers (82), (83) and (84) are brought into rolling contact with the concave surfaces (77b) and (78b) which are non-acting surfaces of the cam bodies (77) and (78), the unit clutches (49) to (51) ), (58) to (60), (64) to (66), and when all the rollers (82), (83) and (84) are in rolling contact with the convex surfaces (77a) and (78a) which are the working surfaces. Each wire (88)-(96) is pulled, and each unit clutch (49)-(51) * (58)-(60) * (64)-(66) is cut off, and either one or two One or two unit clutches (49) to (51) corresponding to the rollers (82) (83) (84) when the rollers (82) (83) (84) are brought into rolling contact with the convex surfaces (77a) (78a).・ (58)-(60) ・ (64)-(66) Are configured to perform work is that Article unit clutch (49) through (51) - (58) - (60) - (64) - only input (66).

  Furthermore, the 1st-3rd clutch switch (101) (102) (103) which performs the planting which rotates each cam body (77) (78) and the forward / reverse drive of the fertilizer application motor (71) (72) is provided, When the first clutch switch (101) is turned on, the first operating arm (85) is swung through the roller (82) to turn off the unit clutches (49), (58), and (64) of the left two strips. Further, when the second clutch switch (102) is turned on, the second operating arm (86) is swung via the roller (83) so that the unit clutches (50), (59), (65) for the two central strips are moved. In addition, when the third clutch switch (103) is turned on, the third operating arm (87) is swung via the roller (84), and the unit clutches (51), (60), (66) for the two right side strips are swung. ) -Stopping the feeding member (38a), seedling picking claw (17), seedling vertical feed belt (52) to (57) every two strips by turning on the third clutch switch (101) (102) (103) Configured to do.

  As shown in FIG. 2, the clutch switches (101) (102) (103) are provided on the dashboard (104) in front of the driver seat (13), and the accelerator lever (105) is located on the right side of the dashboard (104). The planting lifting / lowering lever (30) is arranged in the nearby lifting / lowering lever guide (106), and during planting work, the accelerator lever (105) performs interlocking control of continuously variable transmission (sub-shifting) according to the engine speed. The planting shift is unified (car-like), and the planting lift / lower lever (30) lifts the planting part (15), turns the planting clutch (not shown) on and off, and releases the left and right line drawing markers. It is provided as follows.

  11 and 12, the lever guide (106) of the elevating lever (30) has a raised position (107a) for raising the planting part (15) and a lowering for lowering the planting part (15). A position (107b), a neutral position (107c) for holding the planting part (15) at an arbitrary height position, and a planting position for turning the planting clutch from off to on at the lowered position of the planting part (15) ( 107d) and a guide groove (107) having left and right marker release positions (107e) and (107f) for releasing the storage of the left and right line drawing markers and setting them in the field, and a potentiometer for detecting the operation position of the elevating lever (30) A mold lever position sensor (108) is provided on the lever guide (106).

  Further, the raising position (107a) of the lever guide (106) is provided with a raising height regulating plate (109) for adjusting the raising operation position of the raising / lowering lever (30), and the raising direction of the raising / lowering lever (30). An engagement groove (110) that restricts the movement of the control plate is formed in the restriction plate (109), and an adjustment bolt (111) that is coupled to the bolt hole (109a) of the restriction plate (109) is moved back and forth through the elongated hole (112). A link sensor (113) that is attached to the lever guide (106) so as to be slidable in the direction and detects the rising height of the planting part (15) raised by the elevating cylinder (28) from the angle of the lower link (26). 14, when the raising operation position of the elevating lever (30) is restricted within the raising setting range by the restriction plate (109) as shown in FIG. 14, the height of the planting portion (15) is raised according to the restriction position. It is configured so that the lifting operation is stopped to shorten the raising / lowering time of the planting part (15) during turning, and to arbitrarily set the raising height according to the depth of the tillage. .

  Then, as shown in FIG. 12, the right and left seedling switch (114) (115), which is a seedling detecting member for detecting the left and right moving ends of the seedling mounting table (16), and the planting clutch during planting work are turned off. A seedling stop switch (116) for stopping the platform (16) at the left and right moving ends, a vehicle speed sensor (117) for detecting a traveling output from the transmission case (4), and the clutch switches (101) to (103) ) And the position sensors (99), (100), and (108) are connected to the work controller (118), and the raising and lowering solenoids (120) of the planting elevating valve (119) that drives the elevating cylinder (28) are connected. ) (121), on / off circuit (123) (124) of the planting clutch motor (122) for switching on and off the planting clutch, and the planting unit clutch motor (71) The work controller (118) is connected to the reverse rotation circuit (125) (126) and the forward / reverse rotation circuit (127) (128) of the fertilizer application clutch motor (72) to raise and lower the planting part (15). The fertilizer application unit clutches (49) to (51), (58) to (60), (64) to (66) are configured to be turned on and off.

  Thus, as shown in FIG. 13, any one or two clutch switches (101) (102) (103) among the clutch switches (101) (102) (103) during the planting operation including the planting clutch. The clutch motor (71) which turns off the planting and fertilizer application unit clutches (49) to (51), (58) to (60), (64) to (66) corresponding to the 72) The drive position (A) is calculated, and the clutch motors (71) and (72) are operated in conjunction with the on operation of the left and right seed bed switches (114) and (115) during normal vehicle travel. Simultaneous driving to the drive position (A) is performed, and the clutch motors (71) (72) are simultaneously turned off only when the seedling stage (16) is positioned at the left and right moving ends, and the corresponding unit clutch ( 49) to (51) 58) - (60) - (64) - (66) are switching operation, not switching operation other than the left and right moving end of the seedling mounting table (16).

  Further, when the clutch motor (71) (72) is driven to the drive position (A) and the vehicle speed is zero, only the fertilizer clutch motor (72) is driven to the drive position (A), The planting clutch motor (71) is in a standby state without driving to the driving position (A) until the seedling stage (16) reaches the left and right moving end as described above. When the machine is stopped and one or more of the unit clutches (49) to (51), (58) to (60), and (64) to (66) are cut off, fertilization is immediately stopped. The seedling removal by the planting claw (17) is performed until the seedling stage (16) reaches the left and right moving ends to prevent inconveniences such as a large amount of fertilization at the stop position and uneven growth.

  On the other hand, even when the unit clutches (49) to (51), (58) to (60), (64) to (66) are turned on, which turns off all the clutch switches (101) (102) (103). The clutch motors (71) and (72) are interlocked with the on / off operation of the left and right seed bed switches (114) and (115), and the unit clutch until the seed bed (16) reaches the left and right moving ends. (49)-(51)-(58)-(60)-(64)-(66) are not performed, and only when the seedling stage (16) is moved left and right, the insertion operation is performed. Planting with good accuracy without occurrence of stocks.

  When the seedling switch (114) (115) detects the left / right moving end of the seedling table (16) by turning on the seedling table stop switch (116) before starting planting or during planting work, It is possible to improve operability and workability by disengaging the attached clutch and facilitating the first seedling work before starting the work.

  In this way, one of the unit clutches (49) to (51), (58) to (60), (64) to (66) is cut off with a conventional headland and the four strips are planted. Thus, even when the entire line is planted again, the seed clutch collection is not stopped or started during the horizontal movement of the seedling stage (16), and the unit clutches (49) to (51), ( 58) to (60) and (64) to (66) are always turned on and off at both ends of the seedling stage (16), thereby preventing the occurrence of a stock loss.

  FIG. 15 shows a configuration example in which the unit clutches (49) to (51), (58) to (60), (64) to (66) are automatically returned. During the work, planting work such as a headland was performed with any one of the unit clutches (49) to (51), (58) to (60), (64) to (66) turned off. Later, when the planting part (15) is raised above a certain height or when the steering handle (14) is manipulated beyond a certain steering angle, it is determined that the aircraft has finished turning based on these detections. The unit clutches (49) to (51), (58) to (60), (64) to (66) in the state are provided so as to automatically return to the on state, thereby improving operability.

  As is apparent from the above embodiments, the present invention includes a seedling planting claw unit clutch (49) (50) (51) for turning on and off the seedling planting claw (17), and a seedling mounting table (16). Seedling vertical feed unit clutch (58) (59) (60) for turning on / off seedling vertical feed and fertilizer application unit clutch (64) (65) (66) for turning on / off fertilizer in fertilizer section (36) And a planting unit drive member (71) for operating the seedling planting claw (17) and the seedling vertical feed unit clutch (58) (59) (60), and a fertilizer application unit clutch (64) (65) ( 66) In the rice transplanter provided with the fertilizer application unit driving member (72) that operates the seedling stand detection member (114) (115) for detecting the left and right moving ends of the seedling stand (16), the seedling detection member (114) Based on the detection of (115), Ttokuratchi (49) (50) (51) (58) (59) (60) (64) (65) is configured to perform on-off (66). As a result, the unit clutches (49) (50) (51), (58), (59), (60), (64), (65), and (66) are turned on and off at the left and right moving ends of the seedling stage (16). When the unit clutch (49) (50) (51) / (58) (59) (60) / (64) (65) (66) is turned on, the seedling is always removed from the left and right ends of the seedling mount (16). Can be reliably prevented from occurring and the planting accuracy in headland operations can be improved.

  Further, since the seedling stand stop switch (116) for stopping the right and left movement of the seedling placement stand (16) by disengaging the planting clutch at the left and right moving ends of the seedling placement stand (16) is provided. ) Is turned on, the seedling mount (16) is stopped at the left and right moving ends, and the planting clutch is disengaged, so that the operability in the seedling joining work before the start of the work can be improved.

  At least one of seedling planting claw unit clutch (49) (50) (51), seedling vertical feed unit clutch (58) (59) (60), fertilizer application unit clutch (64) (65) (66) When the cutting operation is performed, the fertilizer feeding of the fertilizer application unit (36) is immediately turned off, but the seedling planting claws (17) are driven by the seedling detection members (114) (115) of the seedling mounting table (16). It is not turned off until the left and right moving ends are detected. As a result, the unit is stopped while the planting clutch is engaged, for example, immediately after the aircraft is turning, and the unit clutches (49) (50) (51), (58), (59), (60), (64), (65) ( 66) When cutting operation is performed, until the seedling stand (16) reaches the left and right moving ends, seedling removal is performed to prevent the stock removal, and fertilization is immediately interrupted to prevent excessive fertilization and grow. Unevenness can be eliminated.

Overall side view. Overall plan view. The side view of a planting part. Plane explanatory drawing of a unit clutch part. The perspective explanatory drawing of the actuator for planting unit clutches. Side surface explanatory drawing of the operating device for planting unit clutches. Front explanatory drawing of the operation device for planting unit clutches. The perspective explanatory drawing of the operating device for fertilizer application unit clutches. Front explanatory drawing of the operating device for fertilizer application unit clutches. Explanatory drawing of a planting and fertilization unit clutch operation system. Plane explanatory drawing of a planting raising / lowering lever part. FIG. The control flowchart figure of a unit clutch. The output diagram of a planting raising / lowering lever and a link sensor. flowchart.

Explanation of symbols

(15) Planting part (16) Seedling stand (17) Seedling planting nail (36) Fertilizer application (fertilization part)
(49) (50) (51) Seedling planting claw unit clutch (58) (59) (60) Seedling vertical feed unit clutch (64) (65) (66) Fertilizer application unit clutch (71) Planting motor (unit drive) Element)
(72) Fertilizer application motor (unit drive member)
(114) (115) Seed stand detection switch (Seed stand detection member)
(116) Seedling stand stop switch

Claims (3)

A seedling planting claw unit clutch for turning on and off the seedling planting claw, a seedling vertical feeding unit clutch for turning on and off the seedling vertical feed of the seedling stand, and a fertilizer application for turning on and off the fertilizer feed of the fertilizer application section In a rice transplanter that provides a unit clutch and a planting unit drive member that operates a seedling planting claw and a seedling vertical feed unit clutch, and a fertilizer unit drive member that operates a fertilizer unit clutch,
A rice transplanter characterized in that a seedling detecting member for detecting a left and right moving end of a seedling mounting is provided, and each unit clutch is turned on and off based on detection of the seedling detecting member.   The rice transplanter according to claim 1, further comprising: a seedling stop switch for stopping the right and left movement of the seedling stage by disengaging the planting clutch when the seedling stage is moved left and right.   When at least one of the seedling planting claw unit clutch, the seedling vertical feed unit clutch, and the fertilizer application unit clutch is turned off, the fertilizer feeding of the fertilizer is immediately turned off. 2. The rice transplanter according to claim 1, wherein the driving of the claw is not cut until the seedling detection member detects a left and right moving end of the seedling mounting table.

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