JP2010183884A - Transplanting implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable one side space to be utilized effectively by concentratedly arranging a transmission configuration of an input case, a power-distributing case, a horizontally sending shaft, a vertically sending arm and the like in the other side of a transplanting implement. <P>SOLUTION: The transplanting implement is constituted as follows. The input case 12 into which a power is input from a traveling machine body 1 side is arranged at the upper part of a right and left intermediate part of a horizontal frame 5, and the power-distributing case 24 for distributing the power transmitted from the input case 12 to a horizontally sending power and a transplanting power is arranged at the outer terminal part of the horizontal frame 5. The distributed horizontally sending power is output to the outer terminal part of the horizontally sending shaft 11 through a horizontally sending speed-changing mechanism 10 installed in the inside of the power-distributing case 24, and the vertically sending arm 25 for operating a vertically sending mechanism 14 is installed in the other terminal part of the horizontally sending shaft 11 extended from the power-distributing case 24 to the input case 12 side. The input case 12 is arranged at the power-distributing case 24 side of the vertically sending arm 25. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a planting machine connected to a traveling machine such as a riding rice transplanter.

  As a planting work machine connected to a traveling machine body such as a riding type rice transplanter, a horizontal frame arranged facing the left-right direction, and a seedling platform horizontally fed in the left-right direction according to the rotation of the horizontal feed shaft A plurality of planter cases arranged in parallel at predetermined intervals in the left-right direction, the front end portion being supported by a horizontal frame, and provided at the rear of each planter case, scraping the seedlings on the seedling platform A planting mechanism for planting in a field, a planting transmission shaft that is arranged in parallel to the horizontal frame and transmits planting power to each planter case, and an input case for receiving power from the traveling machine body side Things are known. The input case is usually arranged at the center of the left and right of the planting machine in order to suppress the bending angle of the transmission shaft provided between the planting machine and the traveling machine body. Power is transmitted to the transverse feed shaft (see, for example, Patent Documents 1 and 2).

JP 2003-169516 A JP 2006-136288 A

  However, in the planting work machine shown in Patent Document 1, power is transmitted from the input case to the intermediate portion of the planting transmission shaft, and the power extracted from the outer end portion of the planting transmission shaft is transferred to the laterally-feeding transmission case ( Since the transmission is transmitted to the lateral feed shaft via the lateral feed speed change mechanism), the backlash of the transmission system is accumulated up to the lateral feed shaft, which may reduce the lateral feed accuracy of the seedling stage.

  On the other hand, in the planting work machine shown in Patent Document 2, planting power and lateral feed power are distributed in the input case, and the distributed lateral feed power is transversal via a lateral feed transmission mechanism built in the input case. Since the power is transmitted to the feed shaft, accumulation of play in the lateral feed transmission system can be prevented, and the seedling platform can be laterally fed with high accuracy. However, if the lateral feed speed change mechanism is built in the input case arranged in the left and right center part, the maintainability of the lateral feed speed change mechanism is only reduced compared to the case where the lateral feed speed change mechanism is arranged outside the planting work machine. In addition, there is a problem that the back space of the seedling stand is pressed by the enlargement of the input case.

  The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems. The invention of claim 1 is a planting work machine connected to a traveling machine body. A horizontal frame arranged facing the direction, a seedling platform that is laterally fed in accordance with the rotation of the lateral feed shaft, a vertical feed mechanism that feeds the seedlings on the seedling platform downward, and a predetermined value in the horizontal direction A plurality of planter cases that are arranged in parallel at intervals and are provided at the rear of each planter case with the front end supported by a horizontal frame, and are planted on the field by scraping the seedlings on the seedling platform And a planting transmission shaft that is arranged in parallel to the horizontal frame and transmits planting power to each planter case, and power is input from the traveling machine body above the left and right intermediate portions of the horizontal frame. In addition to the input case to be placed, at the outer end of the horizontal frame, A power distribution case that distributes the power transmitted from the force case to the lateral feed power and planting power is arranged, and the distributed lateral feed power is removed from the lateral feed shaft via the lateral feed transmission mechanism built in the power distribution case. A vertical feed arm that operates the vertical feed mechanism is provided at the other end of the horizontal feed shaft that outputs from the power distribution case to the input case while being output to the end. An input case is arranged in

  According to the first aspect of the present invention, the input case is disposed above the left and right intermediate portions of the horizontal frame, and the bending angle of the transmission shaft provided between the planting work machine and the traveling machine body is suppressed, while the outer side of the horizontal frame is removed. By installing a lateral feed transmission mechanism in the power distribution case located at the end, it is possible to ensure good maintainability of the lateral feed transmission mechanism, avoid an increase in the size of the input case, and to install a planting transmission shaft. Without passing through, power can be transmitted to the transverse feed shaft, and it is also possible to prevent a reduction in transverse feed accuracy due to backlash accumulation. In addition, since the transmission configuration such as the input case, the power distribution case, the transverse feed shaft, and the longitudinal feed arm is concentrated on one side of the planting work machine, the space on the other side can be used effectively.

It is a side view of a riding type rice transplanter. It is a top view of a riding type rice transplanter. It is the perspective view which looked at the planting work machine from the front left upper part. It is the perspective view which looked at the principal part of the planting work machine from back upper right. It is a top view which shows the principal part of a planting work machine. It is a principal part side view which shows arrangement | positioning of a vertical feed arm. It is a perspective view which shows the inside of a power distribution case. It is a side view which shows the inside of a power distribution case.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes a traveling machine body of a riding type rice transplanter, and a planting work machine 3 is connected to a rear portion of the traveling machine body 1 via a lifting link mechanism 2 so as to be lifted and lowered. A planting PTO shaft (not shown) protrudes from the rear portion of the traveling machine body 1, and the power output from the planting machine 3 is transmitted through a bendable transmission shaft 4 having a universal joint. To be transmitted to.

  As shown in FIGS. 1 to 8, the planting work machine 3 includes a horizontal frame 5, a seedling stage 6, a planter case 7, a planting mechanism 8, a planting transmission shaft 9, a lateral feed speed change mechanism 10, and a lateral feed shaft. 11, input case 12 and the like. The horizontal frame 5 is a square cylindrical frame member that is disposed on the planting work machine 3 so as to face in the left-right direction. The horizontal frame 5 is located behind the lifting link mechanism 2 via a rolling shaft 13 that protrudes forward from the left-right center position. It is connected to the end portion in a rolling manner.

  The seedling mounting table 6 has a seedling mounting surface inclined in a low shape before and after the front height, and is laterally fed in the left-right direction according to the rotation of the lateral feed shaft 11. The seedling placing table 6 is provided with a vertical feeding mechanism 14 for feeding the mat seedlings on the seedling placing surface downward at a position where the lateral feeding is turned back. The vertical feed mechanism 14 includes a vertical feed belt 15 that contacts the lower surface of the mat seedling, and a belt feed mechanism (not shown) that sends the vertical feed belt 15 downward in response to the vertical feed lever 16 jumping up. ing.

  The planter case 7 is arranged in parallel with a predetermined interval in the left-right direction, and the front end portion is integrally supported by the horizontal frame 5. The planting mechanism 8 is provided at the rear part of the planter case 7 and scrapes the seedlings on the seedling placing stand 6 to plant them in the field. The number and arrangement of the planter case 7 and the planting mechanism 8 are determined according to the number of planting strips of the planting work machine 3. For example, in the 6-planting planting work machine 3 shown in FIG. 2, three planter cases 7 are arranged in parallel at equal intervals, and a planting mechanism 8 is provided on each of the left and right sides of each planter case 7. .

  The planting transmission shaft 9 is arranged in parallel in the lower rear of the horizontal frame 5, and transmits planting power to each planter case 7. The planting transmission shaft 9 according to the present embodiment includes an input shaft 17 of the planter case 7 and a joint shaft 18 that connects the input shafts 17 of the adjacent planter cases 7. You may comprise by a scale axis.

  The lateral feed speed change mechanism 10 is a speed change mechanism interposed in the power transmission path to the lateral feed shaft 11, and changes the lateral feed speed of the seedling stage 6 by changing the rotational speed of the lateral feed shaft 11. be able to. The lateral feed shaft 11 includes a screw shaft 19 having an endless helical groove on the outer periphery, and a lateral feed body 20 that reciprocates left and right on the shaft in accordance with the rotation of the screw shaft 19. By connecting 20 to the seedling stage 6, the seedling stage 6 is laterally fed.

  The input case 12 is a case body for inputting power from the traveling machine body 1 via the transmission shaft 4, and includes an input shaft 21 facing in the front-rear direction, an output shaft 22 facing in the left-right direction, both shafts 21, A bevel gear mechanism 22a for transmitting between the two is incorporated.

  Next, the arrangement configuration and transmission configuration of the planting machine 3 according to the present embodiment will be described with reference to FIGS.

  In the planting work machine 3 of the present embodiment, the input case 12 is arranged above the left and right intermediate portions of the horizontal frame 5 and input from the input case 12 via the transmission shaft 23 to the outer end of the horizontal frame 5. A power distribution case 24 that distributes the power to be distributed to lateral feed power and planting power is arranged, and the lateral feed power distributed here is transferred to the lateral feed shaft 11 via the lateral feed speed change mechanism 10 built in the power distribution case 24. The distributed planting power is output to the outer end of the planting transmission shaft 9 and transmitted from the planter case 7 on the outer end side in one direction.

  In this way, the input case 12 is disposed above the left and right intermediate portions of the horizontal frame 5, while suppressing the bending angle of the transmission shaft 4 provided between the planting work machine 3 and the traveling machine body 1, and the horizontal frame 5. By installing the lateral feed speed change mechanism 10 in the power distribution case 24 arranged at the outer end of the motor, it is possible to ensure good maintainability of the lateral feed speed change mechanism 10 and to avoid the input case 12 from being enlarged, The power can be transmitted to the lateral feed shaft 11 without going through the planting transmission shaft 9 and the lateral feed accuracy can be prevented from being lowered due to accumulation of backlash.

  Further, in the planting work machine 3 of the present embodiment, when the input case 12 is disposed above the left and right intermediate portions of the horizontal frame 5 and the power distribution case 24 is disposed at the outer end of the horizontal frame 5, power distribution is performed. The lateral feed shaft 11 extends from the case 24 to the input case 12 side, and a vertical feed arm 25 for operating the vertical feed mechanism 14 is provided at the other end of the horizontal feed shaft 11. The input case 12 is arranged on the power distribution case 24 side. In this way, the transmission structure such as the input case 12, the power distribution case 24, the transverse feed shaft 11, and the longitudinal feed arm 25 can be concentrated on one side of the planting work machine 3, so that the space on the other side is reduced. It can be used effectively. The vertical feed arm 25 is always rotated integrally with the horizontal feed shaft 11, and when the seedling stage 6 reaches the horizontal feed return position, the vertical feed lever 16 is flipped up so that the vertical feed mechanism 14 is moved up. Operate.

  In the planting work machine 3 of the present embodiment, the scraping amount adjusting lever 27 that adjusts the scraping amount of the seedling based on the position adjustment of the apron 26 and the seedling planting based on the position adjustment of the float 28. In providing the planting depth adjusting lever 29 for adjusting the depth, the input case 12 and the power distribution case 24 are arranged on one side with respect to the left and right center of the planting work machine 3, and the scraping amount adjusting lever is provided on the other side. 27 and a planting depth adjusting lever 29 are arranged. In this way, the left and right weight balance of the planting work machine 3 can be made as uniform as possible, and the two adjustment levers 27 and 29 can be easily arranged without considering interference with the cases. .

  The apron 26 is a member that defines the lower end position of the seedling placed on the seedling placing stand 6, and corresponds to the operation of the scraping amount adjusting lever 27 that is interlocked and connected via the scraping amount adjusting shaft 30. By raising and lowering, the seedling scraping amount of the planting mechanism 8 can be changed. The float 28 is a member that regulates the height of the planting work machine 3 with respect to the ground. The float 28 moves up and down according to the operation of the planting depth adjustment lever 29 that is interlocked and connected via the float shaft 31. The seedling planting depth of the attaching mechanism 8 can be changed.

  Further, in the planting work machine 3 of the present embodiment, when the scraping amount adjusting lever 27 and the planting depth adjusting lever 29 are arranged side by side in the left-right direction, the planting depth adjusting lever 29 having a small operation range travels. It is arranged near the rear wheel 32 of the machine body 1 and the lever guides 33 of both adjusting levers 27 and 29 are integrated. In this way, both the adjusting levers 27 and 29 can be arranged in a compact manner, and the cost can be reduced by integrating the lever guide 33.

  Next, the configuration of the power distribution case 24 will be described with reference to FIGS. 7 and 8.

  The power distribution case 24 includes an input shaft 34 through which power is transmitted from the input case 12 via the transmission shaft 23, a planting power output shaft 35 that outputs planting power to the planting transmission shaft 9, and lateral feed power. Is transmitted to the transverse feed shaft 11, a chain transmission mechanism 37 that transmits the power of the input shaft 34 to the planting power output shaft 35, and the power of the input shaft 34 is shifted to output the lateral feed power. A transverse feed transmission mechanism 10 that is transmitted to the shaft 36 is incorporated.

  The lateral feed transmission mechanism 10 includes a pair of transmission gears 38 and 39 that are slidably provided on the input shaft 34, transmission gears 40 and 41 that selectively engage these transmission gears 38 and 39, transmission gears 40, 41 and a gear 42, a gear 36 a that is integrally provided with the lateral feed power output shaft 36 and meshes with the gear 42, and a shifter 44 that operates the gears 38 and 39. It is configured.

  In the present embodiment, an input shaft 34 to which power from the input case 12 is transmitted is arranged at the upper part of the power distribution case 24, while planting power is output to the planting transmission shaft 9 at the lower part of the power distribution case 24. The planting power output shaft 35 is disposed to transmit between the input shaft 34 and the planting power output shaft 35 via the chain transmission mechanism 37, and in the chain locus of the chain transmission mechanism 37, the lateral feed speed change mechanism 10 transmission shafts 43 and a transverse feed power output shaft 36 for outputting the transverse feed power to the transverse feed shaft 11 are arranged.

  In this way, the power distribution case 24 in which the lateral feed transmission mechanism 10 is housed is configured separately from the input case 12, and the input shaft 34 and the planting power output shaft 35 are arranged above and below the power distribution case 24, Since the transmission shaft 43 and the lateral feed power output shaft 36 of the lateral feed transmission mechanism 10 are arranged in the chain trajectory transmitted between both shafts 34 and 35, the power distribution case 24 can be made compact, and as a result. In addition to solving the problem that the back space of the seedling stage 6 is compressed, the horizontal frame 5 and the seedling stage 6 can be brought close to each other to reduce the size of the planting work machine 3. Further, in the power distribution case 24 configured as described above, the capacity of the upper stage in which the transverse feed transmission mechanism 10 is built is increased and the capacity of the lower stage is decreased, so that the amount of lubricating oil filled in the power distribution case 24 is increased. Can be reduced.

  In the present embodiment, when the power distribution case 24 is composed of two split cases 45 and 46 that are divided into left and right, when the case is disassembled, the split case 45 serving as a lid is deep and the split case 46 on the side where the shaft remains. Form shallow. If it does in this way, a shaft and a gear train will be exposed at the time of case decomposition, and maintenance will become easy.

  According to the present embodiment configured as described, according to the planting work machine 3 connected to the traveling machine body 1 according to the rotation of the horizontal frame 5 arranged in the left-right direction and the horizontal feed shaft 11. Are arranged in parallel with a predetermined interval in the left-right direction, and the front end portion is laterally arranged. A plurality of planter cases 7 supported by the frame 5, a planting mechanism 8 that is provided at the rear part of each planter case 7, scrapes the seedlings on the seedling mounting table 6 and plants them in the field, and the horizontal frame 5 An input case 12 that is arranged in parallel and has a planting transmission shaft 9 that transmits planting power to each planter case 7, and power is input from the traveling machine body 1 side above the left and right intermediate portions of the horizontal frame 5. And is transmitted from the input case 12 to the outer end of the horizontal frame 5. A power distribution case 24 that distributes power to lateral feed power and planting power is arranged, and the distributed lateral feed power is arranged at the outer end portion of the lateral feed shaft 11 via the lateral feed speed change mechanism 10 built in the power distribution case 24. Is provided at the other end of the transverse feed shaft 11 extending from the power distribution case 24 to the input case 12 side, and a vertical feed arm 25 for operating the vertical feed mechanism 14 is provided. Since the input case 12 is disposed on the power distribution case 24 side, the input case 12 is disposed above the left and right intermediate portions of the horizontal frame 5 and the transmission shaft 4 provided between the planting work machine 3 and the traveling machine body 1 is arranged. The transverse feed transmission mechanism 10 is built in the power distribution case 24 disposed at the outer end of the horizontal frame 5 while suppressing the bending angle, thereby ensuring good maintainability of the transverse feed transmission mechanism 10 and the input case. Avoids 2 in size, and further, without going through the planting transmission shaft 9, and transmission power to the horizontal feed shaft 11, it can also be prevented decrease in lateral feeding accuracy due to accumulation of backlash. In addition, since the transmission configuration such as the input case 12, the power distribution case 24, the lateral feed shaft 11, and the vertical feed arm 25 is concentrated on one side of the planting work machine 3, the space on the other side is effectively used. can do.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Planting work machine 4 Transmission shaft 5 Horizontal frame 6 Seedling stand 7 Planter case 8 Planting mechanism 9 Planting transmission shaft 10 Horizontal feed speed change mechanism 11 Lateral feed shaft 12 Input case 14 Vertical feed mechanism 24 Power distribution case 25 Vertical feed arm

Claims (1)

A planting work machine connected to the traveling machine body,
A horizontal frame arranged facing left and right,
A seedling platform that is laterally fed in accordance with the rotation of the transverse feed shaft,
A longitudinal feed mechanism that feeds the seedlings on the seedling platform downward;
A plurality of planter cases that are arranged in parallel with a predetermined interval in the left-right direction and whose front end is supported by a horizontal frame;
A planting mechanism that is provided at the rear of each planter case and scrapes the seedlings on the seedling stand to plant them in the field;
A planting transmission shaft that is arranged in parallel to the horizontal frame and transmits planting power to each planter case;
An input case to which power is input from the traveling machine body side is arranged above the left and right middle part of the horizontal frame, and power transmitted from the input case is distributed to the lateral feed power and planting power at the outer end of the horizontal frame. Power distribution case is arranged, and the distributed lateral feed power is output to the outer end of the lateral feed shaft via the lateral feed transmission mechanism built in the power distribution case, while extending from the power distribution case to the input case side A planting work machine characterized in that a vertical feed arm for operating a vertical feed mechanism is provided at the other end portion of the horizontal feed shaft, and an input case is arranged closer to the power distribution case than the vertical feed arm.

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